CN113975419A - Department of stomatology is with oral cavity inspection instrument degassing unit - Google Patents

Abstract

The invention relates to a dental examination instrument disinfection device for stomatology department, comprising: a container for sterilizing, sterilizing and drying the oral examination instrument, which is configured with a sterilizing unit and a sterilizing unit; a fluid control module configured with a passage for conveying a fluid and a heat exchange assembly. The fluid control module also includes a fluid circulation assembly coupled to the disinfection unit and the sterilization unit, capable of circulating fluid within the sterilization unit.

Description

Department of stomatology is with oral cavity inspection instrument degassing unit

Technical Field

The invention relates to the technical field of medical instruments, in particular to a disinfection device for an oral examination instrument for department of stomatology.

Background

Oral appliances (dental devices) refer to reusable appliances, instruments and articles used for the prevention, diagnosis, treatment of oral conditions and oral health, and are classified by degree of risk into high-risk oral appliances (critical dental instruments), medium-risk oral appliances (semi-critical dental instruments) and low-risk oral appliances (non-critical dental instruments). Among them, high-risk oral instruments (critical dental instruments) refer to oral instruments that penetrate soft tissue, contact bone, enter or contact blood or other sterile tissue; moderate-risk oral devices (clinical dental instruments) are oral devices that contact intact mucosa without entering the sterile tissues, organs and blood stream of the body and without contacting damaged skin or damaged mucosa; the oral appliance (oral appliances) with low risk refers to an oral appliance which is not in contact with the oral cavity of a patient or indirectly in contact with the oral cavity of the patient, participates in oral diagnosis and treatment services, is polluted by microorganisms, but is harmless under general conditions, and only harms are caused when polluted by a certain amount of pathogenic microorganisms.

Examination instruments such as mouth mirrors, tweezers, instrument trays and the like; a dental handpiece; an intraoral X-ray film holder; a rubber dam clamp; retractors for the lips, tongue, and cheek are all moderate-risk oral appliances that require sterilization or high-level disinfection, followed by cleaning. Can be directly put into a clean container for storage after disinfection or sterilization without packaging. Dental probes have sharp parts and need to be fixed during sterilization, while periodontal probes are highly dangerous oral instruments and require further sterilization after sterilization.

After the oral instruments (dental instruments) are used, the oral instruments are generally cleaned, sterilized, dried and the like in a recovery area cleaning area and a maintenance, packaging and sterilization area respectively, wherein the recovery area cleaning area is used for recovering, classifying, cleaning and drying the oral instruments, and a physical barrier is arranged between the recovery area cleaning area and the maintenance, packaging and sterilization area. The drying method comprises the following steps: the drying temperature of the metal is 70-90 ℃; plastics 65-75 ℃. The temperature of the damp-heat disinfection of the medical instruments, instruments and articles which are directly used after disinfection is more than or equal to 90 ℃, the time is more than or equal to 5min, or the A0 value is more than or equal to 3000; after sterilization, the sterilization treatment is continued, the damp-heat sterilization temperature is more than or equal to 90 ℃, the time is more than or equal to 1min, or the AO value is more than or equal to 600. The AO value is an index for evaluating the effect of moist heat sterilization, and means that the temperature corresponds to a time (sec) of 80 ℃ when the effect of killing microorganisms expressed by Z value is 10K.

Steam sterilization is a common method for medical institutions to repeatedly utilize medical instruments for sterilization, and is also a necessary device for domestic medium and large hospitals. The pressure steam sterilizer consumes a large amount of resources and energy in the using process, the standby time (idle time) of the pressure steam sterilizer in most hospitals in daily use is long, and the standby time of each sterilizer is 12-16 hours every day. The sterilizer standby state consumes 40% of the total power consumption and 21% of the total water consumption. The energy-saving management of the foreign pressure steam sterilizer achieves better effect, and the method mainly comprises the steps of closing the sterilizer in a low peak period, closing the sterilizer when no article is waiting for sterilization, changing the loading mode and the like.

The invention provides a washing and disinfecting cabinet for department of stomatology, which is provided by patent document with publication number CN108742918A in the prior art, and comprises a timing knob, a closed door, a deep washing and disinfecting device, a display panel, a disinfectant input port, a disinfectant adjusting sliding key and an anti-slip footing, wherein the upper end of the anti-slip footing is embedded in the lower end of the deep washing and disinfecting device and is vertical to each other, the left end of the disinfectant input port is embedded in the right end of the deep washing and disinfecting device and is vertical to each other, the back of the disinfectant adjusting sliding key is embedded in the front end of the closed door, the back of the display panel and the front end of the closed door are of an integrated structure, the back of the timing knob is embedded in the front end of the closed door, the back of the closed door is attached to the front end of the deep washing and disinfecting device and is vertical to each other, the washing and disinfecting cabinet for department of stomatology is designed to be different from the treatment instrument in the market, and respectively carries out the cleaning operation and disinfecting operation to the used instruments when in use, only one person is needed to operate a plurality of devices simultaneously, and the processing time is short. But the drying and the disinfection are not physically separated, which easily causes incomplete disinfection.

As disclosed in patent publication No. CN104968369A, a disinfecting device is proposed, which comprises: at least one chamber for disinfecting a product, a primary fluid circuit connected to the chamber for applying hot water and/or hot steam to the chamber, a secondary fluid circuit for heating and/or cooling the primary fluid circuit, wherein the secondary fluid circuit is connected to the primary fluid circuit via a second heat exchanger, and a layer tank with a plurality of temperature zones in the secondary fluid circuit, wherein the temperature zones can be individually loaded and unloaded with fluid of the secondary fluid circuit. But it does not allow recycling of part of the fluid.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

The invention discloses a mouth examination instrument disinfection device for stomatology department, comprising: a container for sterilizing, sterilizing and drying the oral examination instrument, which is configured with a sterilizing unit and a sterilizing unit; a fluid control module configured with a passage for conveying a fluid and a heat exchange assembly. The fluid control module also includes a fluid circulation assembly coupled to the disinfection unit and the sterilization unit, capable of circulating fluid within the sterilization unit.

Preferably, the fluid circulation assembly is capable of receiving and storing a portion of the fluid inside the sterilization unit after the sterilization unit has completed a sterilization operation, and at least one chamber is provided for storing a portion of the fluid inside the sterilization unit.

Preferably, the fluid circulation module is provided with an integrated membrane filtration module in fluid communication with the chamber of the fluid circulation module, the membrane filtration module comprising a first membrane filter having a permeate side and an opposite retentate side, the first membrane filter incorporating a separation membrane adjacent the permeate side and a support layer adjacent the retentate side.

Preferably, the fluid circulation assembly is connected to the heat exchange assembly to heat or cool the fluid stored within the fluid circulation assembly for delivery to the sterilization unit and the disinfection unit.

Preferably, the heat exchange assembly comprises a first storage member and a second storage member each having a plurality of storage areas, the storage areas being capable of individually loading and unloading the fluid introduced into the heat exchange assembly and exchanging heat of the fluid in the first storage member and the second storage member through the heat exchanger to achieve energy recovery.

Preferably, the fluids from the different storage areas of the first and second storage elements are mixed together and/or extracted layer by layer in order to heat and/or cool the fluid in the first storage element.

Preferably, the gas of the steam generator is passed through the heating tube to raise the steam to a predetermined temperature during the transportation to the sterilization unit, the heating tube including a heat insulating layer for preventing heat from being transferred to the outside, a delaying member provided in the heating tube to delay a flow rate of the steam passing through the heating tube, and heating coils arranged in parallel in an axial direction of the heating tube, wherein the steam passing through the heating tube is heated by the heating coils.

The invention discloses a mouth examination instrument disinfection device for stomatology department, comprising: a container for sterilizing, sterilizing and drying the oral examination instrument, which is configured with a sterilizing unit and a sterilizing unit; a steam generator configured to generate steam; a fluid circulation assembly configured to store water vapor. During the process that the steam generator transmits the fluid to the container along the tenth pipeline, the first control valve can perform pulse type fluid supply on the disinfection unit and the sterilization unit in a mode of controlling the pressure transmitted to the disinfection unit and the sterilization unit.

Preferably, the fifth line bypasses the tenth line by conveying the fluid of the steam generator to the sterilizing unit and the sterilizing unit.

Preferably, the fluid circulation assembly transmits the fluid stored in the fluid circulation assembly to the sterilization unit or the disinfection unit through a ninth pipeline, the ninth pipeline is provided with a second control valve for controlling the fluid pumped to the sterilization unit and the disinfection unit, and the control valve can disturb the transmission process of the steam generator for transmitting the steam to the sterilization unit or the disinfection unit in a manner of controlling the flow of the fluid so as to realize pulse type fluid supply for the sterilization unit and the disinfection unit.

The invention discloses an operation method capable of recycling fluid and recovering energy, which comprises the following steps:

s1, introducing steam into the disinfection unit and the sterilization unit, and replacing cold air in the disinfection unit and the sterilization unit;

s2, introducing the waste gas generated in the S process into a first storage part of a heat exchange assembly, thereby transferring heat in the waste gas to a second storage part of the heat exchange assembly through a heat exchanger, and conveying water in the second storage part to a steam generator to generate steam conveyed to a disinfection unit and a sterilization unit;

s3, sucking air from the outside, filtering the air by the membrane filtering component, and introducing the air into the first chamber of the fluid circulation component;

s4, filtering part of steam in the sterilization unit by the membrane filtration assembly and introducing the part of steam into a second chamber of the fluid circulation assembly;

s5, heating the cold air in the first chamber to a preset temperature through a heat exchanger, introducing the cold air into the sterilization unit and the disinfection unit, replacing steam in the sterilization unit and the disinfection unit, and introducing exhaust gas generated by replacement into a first storage part of the heat exchange assembly;

s6, in the later stage of S replacement, when the steam content is reduced to a preset content, introducing the waste gas of the sterilization unit into a third chamber of the fluid circulation assembly after being treated by the drying assembly;

s7, after the steam replacement of the S is finished, introducing cold air in the first chamber into a sterilization unit and a disinfection unit, filtering waste gas in the sterilization unit by a membrane filtering assembly, introducing the waste gas into the first chamber, and introducing the waste gas in the disinfection unit into a first storage part of a heat exchange assembly;

and S8, after a new load is put in, introducing the steam in the second chamber into the disinfection unit and the sterilization unit, and introducing the gas stored in the third chamber into the disinfection unit and the sterilization unit in the process of replacing the steam after the disinfection and sterilization are finished.

Preferably, the membrane filtration module is connected to the chamber of the fluid circulation module, which is capable of filtering solid waste in the fluid input from the external and sterilization units to achieve the recycling of the fluid.

Preferably, the fluid circulation assembly is connected to the heat exchange assembly to enable the heat exchange assembly to heat and/or cool fluid in the fluid circulation assembly, and the fluids from the different storage zones of the first and second storage members can be mixed together and/or extracted layer by layer in order to heat and/or cool the fluid of the fluid circulation assembly.

The invention has the beneficial technical effects that: the fluid circulation assembly and the heat exchange assembly are arranged, so that part of fluid in the sterilization process can be recycled, the heat in waste gas can be effectively utilized, energy is saved, and meanwhile, the damage to an exhaust system in the waste gas exhaust process is reduced.

Drawings

FIG. 1 is a simplified overall configuration schematic diagram of the dental examination apparatus disinfecting device for department of stomatology of the present invention;

FIG. 2 is a simplified overall schematic diagram of the path of the dental examination apparatus disinfecting device for dentistry of the present invention;

FIG. 3 is a schematic structural view of a preferred embodiment of the present invention;

FIG. 4 is a time-pressure diagram of a sterilization unit of the present invention;

fig. 5 is a schematic diagram of a workstation of the prior art.

List of reference numerals

1: a container; 2: a fluid control module; 11: a sterilizing unit; 12: a sterilization unit; 21: a fluid circulation assembly; 22: a passage; 23: a control component; 24: a heat exchange assembly; 25: heating a tube; 31: a first control valve; 31 a: a main valve; 31 b: a secondary valve; 32: a second control valve; 21 a: a membrane filtration module; 21 b: a drying assembly; 211: a first chamber; 212: a second chamber; 213: a third chamber; 221: a first pipeline; 222: a second pipeline; 223: a third pipeline; 224: a fourth pipeline; 225: a fifth pipeline; 226: a sixth pipeline; 227: a seventh pipeline; 228: an eighth pipeline; 22 a: a ninth conduit; 22 b: a tenth pipeline; 241: a first storage member; 242: a second storage member; 243: a heat exchanger; 244: a steam generator; a1: a cold air replacement stage; a2: a disinfection and sterilization stage; a3: a steam replacement stage; b: the scheme is a curve; b1: a prior art curve.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The invention discloses a dental multifunctional cleaning and disinfecting workstation as proposed in the patent with publication number CN102716506B shown in fig. 5, which integrates a plurality of cleaning and disinfecting devices, has compact structure and high cleaning and disinfecting efficiency, but has the problems of high energy consumption and the like in specific use, so that the invention discloses a dental examination instrument disinfecting device for department of stomatology, which is applied to the workstation and comprises: acontainer 1 for sterilizing, sterilizing and drying an oral examination instrument is configured with a sterilizingunit 11 and a sterilizingunit 12.

Example 1

According to a preferred embodiment, in order to solve the problem of high energy consumption of the above-mentioned workstation, the present invention is provided with afluid control module 2 for controlling the flow of fluid, which is provided with afluid circulation assembly 21, apassage 22 for transporting fluid, acontrol assembly 23 for controlling the flow direction of fluid, and aheat exchange assembly 24; and a state monitoring module which controls the communication state of the passage based on the monitored data such as the temperature.

According to a preferred embodiment, in the sterilization of the oral cavity instruments, different treatment methods can be selected according to the specific classification of the instruments. For example, moderately dangerous oral devices such as mouth mirrors and forceps may be sterilized, while highly dangerous oral devices such as periodontal probes may need to be sterilized. Wherein, the sterilization needs to meet the condition that the steam temperature is more than or equal to 90 ℃ and the time is more than or equal to 5min so as to ensure the sterilization effect; the sterilization needs to be ensured at the working temperature of 115-138 ℃. A plurality of reaction units can be set up to meet specific processing requirements according to different conditions. Only sterilization is required when no sterilization operation is required, and thus a plurality ofsterilization units 11 and 12 may be provided inside thecontainer 1.

According to a preferred embodiment, after the sterilization is finished, in order to avoid the damage to the operator caused by the burst of high-temperature steam when the container door is opened, the high-temperature steam filled in the container needs to be replaced, and the high temperature and the pressure in the container need to be reduced to a safe range, so that the operator can take out the load for completing the sterilization. In order to ensure the replacement effect of the high-temperature steam and the cold air, the high-temperature steam and the cold air are replaced for many times, and a large amount of waste steam is inevitably generated. Meanwhile, in order to ensure that the sterilized inspection equipment is not contaminated by the cold air used for the replacement of the steam, bacteria or solid particles contained in the cold air extracted from the outside are filtered. The air and steam at this stage are sterile and can be recycled, which is a waste if the air and steam are disposed of in a direct exhaust manner. To solve the above problems, the present invention provides afluid circulation assembly 21 to solve the above problems of fluid circulation generated during the replacement process.

Thefluid circulation assembly 21 is used for circulating the fluid of the apparatus, thefluid circulation assembly 21 is capable of receiving and storing a portion of the fluid inside thesterilization unit 12 after thesterilization unit 12 completes the sterilization operation, at least one chamber is provided for storing a portion of the fluid inside thesterilization unit 12, and the fluid circulation assembly comprises: afirst chamber 211 configured for storing steam; a second chamber 212 configured to store cold air; athird chamber 213 configured to store high-temperature air; a membrane filtration module 21a configured for filtering gas flowing therethrough; a dryingassembly 21b configured for drying the gas flowing therethrough. Afluid circulation assembly 21 is connected to thesterilization unit 11 and thesterilization unit 12 to circulate the fluid inside thesterilization unit 12.

For the purpose of describing the above replacement process, the process of replacing air with cold air is now divided into three stages, according to the content of water vapor in the discharged air, namely: the initial stage of replacement, the middle stage of replacement and the late stage of replacement.

At the initial stage of replacement, most of the high-pressure steam inside the container needs to be transferred for subsequent recycling. Specifically, the cold air in thefirst chamber 211 is heated to a predetermined temperature by theheat exchanger 243, introduced into thesterilization unit 12 and thesterilization unit 11, the steam of thesterilization unit 12 and thesterilization unit 11 is replaced, and the exhaust gas generated by the replacement is introduced into thefirst storage 241 of theheat exchange assembly 24.

In the middle stage of replacement, the hot air in the drying process is used to replace the steam remaining in the container, and when the steam content is reduced to a predetermined level, the exhaust gas from thesterilization unit 12 is processed by thedrying module 21b and then introduced into thethird chamber 213 of thefluid circulation module 21.

At the end of the replacement, the hot air is replaced with the cold air, the cold air in thefirst chamber 211 is introduced into thesterilization unit 12 and thesterilization unit 11, the exhaust gas in thesterilization unit 12 is introduced into thefirst chamber 211 after being filtered by the membrane filtration module 21a, and the exhaust gas in thesterilization unit 11 is introduced into thefirst storage part 241 of theheat exchange module 24.

When the superheated steam after the sterilization treatment needs to be further utilized, the problem of solid waste formed by inactivated bacteria or viruses carried by the superheated steam is considered, the solid waste can accelerate the condensation of the steam, can be attached to the surface of the instruments to be sterilized, and the sterilization effect of the instruments to be sterilized can be influenced if the solid waste is not treated. It is therefore necessary to filter the solid waste in the gas during this process. Preferably, thefluid circulation module 21 is provided with an integrated membrane filtration module 21a, the membrane filtration module 21a being in fluid communication with the chamber of thefluid circulation module 21, the membrane filtration module comprising a membrane filter having a permeate side and an opposite retentate side, the membrane filter integrating a separation membrane adjacent to the permeate side and a support layer adjacent to the retentate side.

In particular, the membrane filtration modules 21a of the one or more membrane filters are in fluid communication. Themembrane filter 21 comprises a selective separation membrane that allows water molecules in the gas phase (e.g., steam) to pass through while rejecting (e.g., retaining, not allowing to pass through) organic molecules that are desired to be removed. The permeate (e.g., filtered vapor) ofmembrane filter 21 may be used at a point of use 70 in fluid communication with membrane filtration system 20. The membrane filtration module 21a may comprise additional filters in addition to the one or more membrane filters. For example, the membrane filtration module may include particulate filters, adsorbent filters, or combinations thereof of various particle sizes. Particulate filters may be used to remove solid particles or liquid droplets. Additional filters may be independently selected and placed either upstream or downstream of the membrane filter.

The membrane filtration module may comprise a combination of two or more particulate filters having different particle size cut-points. In one exemplary embodiment, the first particulate filter has a particle size cut-off of about 1 mm; the second particle size filter has a particle size cut-off of about 25 μm; and the third particle size filter has a particle size cut-off of about 5 μm.

The membrane filtration module may include an adsorbent filter to remove residual organic molecules that are not removed by themembrane filter 21. The adsorbent filter may be arranged as a packed bed filter comprising an adsorbent and/or adsorbent material, such as activated carbon, molecular sieves, other suitable materials, or combinations thereof. The number and size of the adsorbent filters in the membrane filtration module can be selected to achieve the desired removal capacity.

The vapor stream entering the membrane filter has a first concentration of organic compounds. The permeate on the permeate side of the membrane filter after treatment with the membrane filter may have a second (reduced) concentration of organic compounds. If an adsorbent filter is included, the permeate is further processed in the adsorbent filter and has a third (further reduced) concentration of organic compounds.

The separation membrane is a non-ionic fluorinated (e.g., perfluorinated) polymer membrane that may be supported by one or more support layers. Optionally, the separation membrane is supported by a first support layer and a second support layer. The layers of the separation membrane are arranged such that the first support layer is located on the permeate side and the second support layer is disposed between the first support layer and the separation layer. When the vapor reaches the separation layer, the membrane allows the water vapor to pass through (e.g., permeate) to the permeate side, while rejecting the organic compound molecules and retaining them (e.g., retentate) on the retentate side of the membrane filter.

Preferably, thefluid circulation assembly 21 is connected to theheat exchange assembly 24 to heat or cool the fluid stored inside thefluid circulation assembly 21 for delivery to thesterilization unit 11 and thesterilization unit 12.

According to a preferred embodiment, when the oral examination apparatus is sterilized by steam sterilization under pressure, the inner cavity of the container is exposed to the external environment during the process of putting or taking the load into or out of the container. When the container is closed, the interior of the container is filled with cold air, and in order to prevent the situations that the partial pressure of the steam is reduced and the steam is prevented from contacting with the instruments to be sterilized due to the residual cold air, the cold air needs to be thoroughly discharged so as to ensure the sterilization effect. Therefore, the cold air in the container needs to be replaced by filling with the discharged steam several times before sterilization, and a large amount of waste air is generated in the process. If the exhaust gas is directly discharged, heat in the exhaust gas is not effectively utilized, resulting in waste of energy, and the high temperature thereof may also cause damage to an exhaust system. To solve the above problems, the present invention is provided with aheat exchange assembly 24 to effectively utilize the heat of the exhaust gas in the above process.

Specifically, theheat exchange assembly 24 is provided with aheat exchanger 243 for exchanging heat, asteam generator 244 for generating steam used for sterilization, and afirst storage part 241 for storing exhaust gas and asecond storage part 242 for storing water, and thefirst storage part 241 and thesecond storage part 242 are connected with theheat exchanger 243 to effectively transfer heat in the exhaust gas to the water for generating steam, so as to realize energy recycling.

Preferably, thefirst storage part 241 and thesecond storage part 242 each have a plurality of storage areas, and theheat exchange assembly 24 includes storage areas capable of individually loading and unloading the fluid introduced into theheat exchange assembly 24 and exchanging heat of the fluid in thefirst storage part 241 and thesecond storage part 242 through theheat exchanger 243 to achieve energy recovery. In order to heat and/or cool the fluid in thefirst storage element 241, the fluids from the different storage areas of thefirst storage element 241 and thesecond storage element 242 are mixed together and/or extracted layer by layer.

Further, the steam generated by the steam generator cannot meet the use requirement of sterilization, and may flow through theheating pipe 25 to raise the temperature of the steam to a predetermined temperature during the process of delivering the gas of the steam generated by thesteam generator 244 to thesterilization unit 12, wherein theheating pipe 25 includes a heat insulating layer for preventing heat from being transferred to the outside, a delay member disposed in the heating pipe to delay the flow rate of the steam passing through the heating pipe, and heating coils disposed in parallel along the axial direction of the heating pipe, wherein the steam passing through the heating pipe is heated by the heating coils.

Optionally, the heating tube is made of a metallic material, preferably stainless steel. A heating device is provided on the outer periphery of the heating pipe, and heats the heating pipe by power applied from a power source. The heating means is a heating coil wound around the outer periphery of the heating pipe. However, the heating device of the present invention is not limited to the heating coil, and various heating devices capable of heating the heating tube may be employed. As another example of the heating device, a heating plate may be provided at a portion inside the heating pipe instead of the heating coil, or the heating plate may be provided together with the heating coil. The heating device is preferably configured to have its temperature controlled by a controller. If the temperature of the heating device can be adjusted, the temperature and pressure of the steam can be controlled.

Thepassageway 22 is for conveying a fluid, and includes: afirst conduit 221 configured for conveying the fluid inside thefirst storage element 241 to theheat exchanger 243; asecond conduit 222 configured for conveying the fluid inside thesecond storage 242 to aheat exchanger 243; athird conduit 223 configured to convey fluid of thefluid circulation assembly 21 to theheat exchanger 243; afourth conduit 224 configured for recycling the fluid of thefluid circulation assembly 21; afifth line 225 configured for delivering the fluid of thefirst storage element 241 to thecontainer 1; asixth conduit 226 configured for conveying the waste fluid of thesecond storage 242 to an exhaust system; aseventh conduit 227 configured for conveying water to theheat exchange assembly 24; aneighth conduit 228 configured for delivering cool air to thefluid circulation assembly 21. Optionally, the pipelines are all provided with pumps to convey fluid, and meanwhile, the pipelines are all provided with valves to control a conveying process.

Thecontrol assembly 23 is changed by controlling the operation of the pump and controlling the closing state of the valve based on the instruction of the state monitoring module to enable thefluid control module 2 to control the flow direction of the water and the steam.

Optionally, a pressure gauge and a thermometer are provided inside thesterilization unit 11 and thesterilization unit 12.

The invention discloses an operation method capable of recycling fluid and recovering energy, which comprises the following steps:

s1, introducing steam into the sterilizingunit 11 and the sterilizingunit 12, and replacing cold air in the sterilizingunit 11 and the sterilizingunit 12;

s2, introducing the exhaust gas generated during S1 into thefirst storage part 241 of theheat exchange assembly 24, thereby transferring heat in the exhaust gas to thesecond storage part 242 of theheat exchange assembly 24 through theheat exchanger 243, and delivering water in thesecond storage part 242 to thesteam generator 244 to generate steam delivered to the sterilizingunit 11 and the sterilizingunit 12;

s3, drawing air from outside, filtering by the membrane filtering module 21a, and introducing into thefirst chamber 211 of thefluid circulation module 21;

s4, introducing part of the steam in thesterilization unit 12 into the second chamber 212 of thefluid circulation module 21 after being filtered by the membrane filtration module 21 a;

s5, introducing the cold air in thefirst chamber 211 into thesterilization unit 12 and thedisinfection unit 11 by heating the cold air to a predetermined temperature through theheat exchanger 243, replacing the steam in thesterilization unit 12 and thedisinfection unit 11, and introducing the exhaust gas generated by the replacement into thefirst storage part 241 of theheat exchange assembly 24;

s6, in the later stage of S5 replacement, when the steam content is reduced to a predetermined level, the exhaust gas from thesterilization unit 12 is processed by thedrying module 21b and introduced into thethird chamber 213 of thefluid circulation module 21;

s7, after finishing the steam replacement of S5, introducing the cold air in thefirst chamber 211 into thesterilization unit 12 and thedisinfection unit 11, introducing the exhaust gas in thesterilization unit 12 into thefirst chamber 211 after being filtered by the membrane filtration module 21a, and introducing the exhaust gas in thedisinfection unit 11 into thefirst storage part 241 of theheat exchange module 24;

s8, after putting a new load, introducing the steam in the second chamber 212 into thesterilization unit 11 and thesterilization unit 12, and introducing the gas stored in thethird chamber 213 into thesterilization unit 11 and thesterilization unit 12 during the steam replacement process after the sterilization.

Preferably, the membrane filtration module 21a is connected to the chamber of thefluid circulation module 21, which is capable of filtering solid waste in the fluid input from the external andsterilization units 12 to achieve the recycling of the fluid.

Preferably, thefluid circulation assembly 21 is connected to theheat exchange assembly 24 to enable theheat exchange assembly 24 to heat and/or cool the fluid in thefluid circulation assembly 21, and the fluids from the different storage areas of thefirst storage element 241 and thesecond storage element 242 can be mixed together and/or extracted layer by layer in order to heat and/or cool the fluid of thefluid circulation assembly 21.

Example 2

In order to ensure the disinfection and sterilization effects, the steam in the container needs to be uniformly distributed, the prior art needs to perform operations of vacuumizing and filling the steam for multiple times to ensure the uniform distribution of the steam, and a common injection mode needs to consume more steam and time, so that the energy recovery effect of the steam sterilization device is further improved, the steam consumption is reduced, the disinfection and sterilization effects of the disinfection unit and the sterilization unit are improved, and thedisinfection unit 11 and thesterilization unit 12 are supplied with water vapor in a pulsating mode.

As shown in fig. 4, during the process that thesteam generator 244 delivers the fluid to thecontainer 1 along thetenth line 22b, thefirst control valve 31 is capable of performing a pulsating fluid supply to the sterilizingunit 11 and the sterilizingunit 12 by controlling the pressure of the fluid delivered to the sterilizingunit 11 and the sterilizingunit 12, and thefifth line 225 delivers the fluid of thesteam generator 244 to the sterilizingunit 11 and the sterilizingunit 12 as a bypass of thetenth line 22 b.

For the purpose of describing the steam supply process, taking thesterilization unit 12 as an example, the fluid delivery process of thesterilization unit 12 is divided into three phases, namely: cold air replacement phase a1, sterilization phase a2, and steam replacement phase A3.

During cold air replacement phase a1,steam generator 244 reduces or increases the steam flow tosterilization unit 11 by controllingmain valve 31a during the delivery of fluid tocontainer 1 alongtenth conduit 22b to disturb the delivery ofsteam generator 244 tosterilization unit 12 alongtenth conduit 22b, thereby providing a pulsating delivery tosterilization unit 12. The process pressure change is shown in fig. 4, which shows a shorter time from an empty state to a full state compared to the prior art pressure change curve B1. Optionally, the pressure range of thesterilization unit 12 is 80-100 kPa when the sterilization unit is filled with steam and-10' -20kPa when the steam is emptied.

In the sterilization stage a2, the pressure in thesterilization unit 12 is stabilized at 200 to 210kPa, maintained for 5 to 8min, and the steam flow to thesterilization unit 11 is reduced to disturb the transportation process of thesterilization unit 12, so as to perform pulse transportation on thesterilization unit 12, where the pressure change in the process is as shown in fig. 4, and compared with the pressure change curve B1 in the prior art, the pressure of the pressure change curve B in the process fluctuates, and the lowest pressure is the same as that in the prior art.

During the steam replacement phase a3, the cold air in thefluid circulation assembly 21 is intermittently delivered along the ninth conduit to thesecond control valve 32, and thesecond control valve 32 is controlled to intermittently deliver cold air to thesterilization unit 12 through theopen valve 234, wherein the pressure change in the process is as shown in fig. 4, and the process pressure change curve B takes a shorter time from the empty state to the full state and has a higher pressure than the prior art pressure change curve B1. Optionally, the pressure range of thesterilization unit 12 filled with cold air in the process is 40-60 kPa, and the pressure range of the steam evacuation is-10-20 kPa.

Preferably, thesteam generator 244 delivers fluid to the sterilization unit along thetenth line 22b and thefifth line 225, and the steam pressure delivered to the sterilization unit is adjusted by themain valve 31a to achieve pulsating steam delivery.

Preferably, in the above process, the gas inside thesterilization unit 12 is discharged along thefourth pipeline 224, and thesterilization unit 12 is in a negative pressure state by pumping the sterilization unit air through thefourth pipeline 224.

Preferably, thesteam generator 244 delivers fluid to the sterilization unit along thetenth line 22b and thefifth line 225, and the steam pressure delivered to the sterilization unit is regulated by thesecondary valve 31b to achieve a pulsed steam delivery.

According to a preferred embodiment, the steam to be recycled or from the steam generator is stored in thefluid circulation assembly 21, which is transferred to thesterilisation unit 12 orsterilisation unit 11 through aninth line 22a, whichninth line 22a is provided with control valves for controlling the flow of pumped steam from thesterilisation unit 12 andsterilisation unit 11.

Specifically, thefluid circulation assembly 21 transfers the fluid stored in the fluid circulation assembly to thesterilization unit 12 or thedisinfection unit 11 through aninth pipeline 22a, theninth pipeline 22a is provided with asecond control valve 32 for controlling the fluid pumped to thesterilization unit 12 or thedisinfection unit 11, and thecontrol valve 31 can disturb the steam delivery process of thesteam generator 244 to thesterilization unit 12 or thedisinfection unit 11 by controlling the flow rate of the fluid, so as to realize the pulse type fluid supply to thesterilization unit 12 and thedisinfection unit 11.

Specifically, prior to performing a sterilization or disinfection operation, all valves are closed,valve 231 is opened, steam fromsteam generator 244 is allowed to fill the various chambers offluid circulation assembly 21, and after it is filled, thevalve 231 is closed. Optionally, the vapor pressure within the fluid circulation assembly chamber is greater than 250 kPa.

During cold air replacement phase a1,valve 235 andvalve 232 are opened, fluid fromsteam generator 244 is delivered tosterilization unit 12 alongfifth line 225, steam is delivered tosecond control valve 32 along ninth line, andsecond control valve 32 is controlled to intermittently deliver steam tosterilization unit 12 throughopen valve 234.

During the sterilization phase A2, fluid from thesteam generator 244 is delivered to thesterilization unit 12 along thefifth pipeline 225, so that the pressure in thesterilization unit 12 is stabilized at 200-210 kPa, and thesecond control valve 32 is controlled to intermittently deliver steam to thesterilization unit 12 through the opened 234 valve.

Throughout this document, the features referred to as "preferably" are only an optional feature and should not be understood as necessarily requiring that such applicant reserves the right to disclaim or delete the associated preferred feature at any time.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. An oral examination instrument disinfecting device for department of stomatology, comprising:

a container (1) for sterilizing, disinfecting and drying an oral examination instrument, which is provided with a sterilizing unit (11) and a sterilizing unit (12);

a fluid control module (2) configured with a passage (22) for conveying a fluid and a heat exchange assembly (24),

characterized in that the fluid control module (2) further comprises a fluid circulation assembly (21), the fluid circulation assembly (21) being connected to the sterilisation unit (11) and the sterilisation unit (12) and being able to circulate the fluid inside the sterilisation unit (12).

2. The oral examination instrument disinfection apparatus for department of stomatology according to claim 1, characterised in that the fluid circulation assembly (21) is capable of receiving and storing a portion of the fluid inside the sterilization unit (12) after the sterilization unit (12) has completed the sterilization operation, the fluid circulation assembly (21) being provided with at least one chamber for storing a portion of the fluid inside the sterilization unit (12).

3. The sterilization apparatus for oral examination instruments according to claim 2, wherein the fluid circulation assembly (21) is connected with a heat exchange assembly (24) to heat or cool the fluid stored inside the fluid circulation assembly (21) for further delivery to the sterilization unit (11) and the sterilization unit (12).

4. The sterilization apparatus for oral examination instruments according to claim 1, wherein the heat exchange assembly (24) comprises a first storage member (241) and a second storage member (242) each having a plurality of storage areas capable of individually loading and unloading the fluid introduced into the heat exchange assembly (24) and exchanging heat of the fluid in the first storage member (241) and the second storage member (242) through a heat exchanger (243) to achieve energy recovery.

5. An oral examination instrument disinfecting device for department of stomatology, comprising:

a container (1) for sterilizing, disinfecting and drying an oral examination instrument, which is provided with a sterilizing unit (11) and a sterilizing unit (12);

a steam generator (244) configured for generating steam;

a fluid circulation assembly (21) configured for storing water vapor,

characterized in that, during the delivery of the fluid to the container (1) along the tenth duct (22b) by the steam generator (244), the first control valve (31) is able to perform a pulsating fluid supply to the sterilisation unit (11) and the sterilisation unit (12) by controlling the pressure delivered to the sterilisation unit (11) and the sterilisation unit (12).

6. The dental examination apparatus disinfection device of claim 5, wherein the fifth line (225) conveys the fluid of the steam generator (244) to the disinfection unit (11) and the sterilization unit (12) as a bypass of the tenth line (22 b).

7. The sterilization apparatus for oral cavity examination instruments according to claim 6, wherein the fluid circulation assembly (21) transmits the fluid stored therein to the sterilization unit (12) or the sterilization unit (11) through a ninth pipeline (22a), the ninth pipeline (22a) is provided with a second control valve (32) for controlling the fluid pumped to the sterilization unit (12) or the sterilization unit (11), and the control valve (31) can control the fluid flow to disturb the delivery process of the steam generator (244) to the sterilization unit (12) or the sterilization unit (11) so as to realize the pulsating fluid supply to the sterilization unit (12) and the sterilization unit (11).

8. An operating method for recycling a fluid and recovering energy, the operating method comprising the steps of:

s1, introducing steam into the disinfection unit (11) and the sterilization unit (12), and replacing cold air in the disinfection unit (11) and the sterilization unit (12);

s2, introducing the exhaust gas generated in the S1 process into the second storage part (242) of the heat exchange assembly (24), thereby transferring heat in the exhaust gas to the first storage part (241) of the heat exchange assembly (24) through the heat exchanger (243), and delivering water in the first storage part (241) to the steam generator (244) to generate steam delivered to the sterilizing unit (11) and the sterilizing unit (12);

s3, sucking air from the outside, filtering the air by the membrane filtering component (21a), and introducing the air into the first chamber (211) of the fluid circulation component (21);

s4, introducing part of steam in the sterilization unit (12) into a second chamber (212) of the fluid circulation assembly (21) after being filtered by the membrane filtration assembly (21 a);

s5, heating the cold air in the first chamber (211) to a preset temperature through a heat exchanger (243), introducing the cold air into the sterilization unit (12) and the disinfection unit (11), replacing steam in the sterilization unit (12) and the disinfection unit (11), and introducing exhaust gas generated by replacement into a first storage part (241) of the heat exchange assembly (24);

s6, in the later stage of the replacement of S5, when the steam content is reduced to a preset content, the waste gas of the sterilization unit (12) is introduced into the third chamber (213) of the fluid circulation assembly (21) after being processed by the drying assembly (21 b);

s7, after the steam replacement of S5 is finished, cold air in the first chamber (211) is introduced into the sterilization unit (12) and the disinfection unit (11), waste gas in the sterilization unit (12) is filtered by the membrane filtering assembly (21a) and then introduced into the first chamber (211), and waste gas in the disinfection unit (11) is introduced into the second storage part (242) of the heat exchange assembly (24);

and S8, after a new load is placed, introducing the steam in the second chamber (212) into the disinfection unit (11) and the sterilization unit (12), and introducing the gas stored in the third chamber (213) into the disinfection unit (11) and the sterilization unit (12) in the process of replacing the steam after disinfection and sterilization are finished.

9. The sterilization apparatus for oral examination instruments according to claim 8, wherein the membrane filtration module (21a) is connected to the chamber of the fluid circulation module (21), which is capable of filtering solid wastes in the fluid inputted from the outside and the sterilization unit (12) to realize the circulation of the fluid.

10. The oral examination instrument disinfection device of claim 9, wherein the fluid circulation assembly (21) is connected to the heat exchange assembly (24) such that the heat exchange assembly (24) can heat and/or cool the fluid in the fluid circulation assembly (21), and in order to heat and/or cool the fluid of the fluid circulation assembly (21), the fluids from different storage areas of the first storage member (241) and the second storage member (242) can be mixed together and/or extracted layer by layer.

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