Intermediate storage tank for green environment-friendly polymerization inhibitorTechnical Field
The invention relates to the technical field of storage tanks, in particular to an intermediate storage tank for an environment-friendly polymerization inhibitor.
Background
The intermediate of the green environment-friendly polymerization inhibitor has higher reactivity, and is easy to react with oxygen, moisture or other impurities in the air, so that deterioration or failure is caused. The storage tank can provide a relatively closed and stable environment, the influence of adverse factors is reduced, and the storage tank is made of high-strength and corrosion-resistant materials, has good sealing performance, and can effectively prevent the leakage of intermediates. The method can protect the production environment from pollution and can also avoid safety accidents such as fire, explosion and the like caused by leakage.
In the existing publications, patent publication number CN210437640U discloses a polymerization inhibitor storage tank, and this storage tank mainly is through the lower extreme fixedly connected with drum of second connecting rod, and the left and right sides fixedly connected with slider of drum, the opening has been seted up to the front and back side of drum, and the lower fixed surface of drum is connected with the disc, and polymerization inhibitor storage tank has the characteristics of being convenient for the ejection of compact, facilitate the use. However, the storage tank has the following defects when in use;
When the storage tank is used for storing the green environment-friendly polymerization inhibitor intermediate, the storage tank needs to be stored in a sealing mode through a plurality of pipelines and tank bodies, the tightness of each pipeline and tank body is difficult to detect during storage, air leakage is difficult to know at the pipeline or tank body position in time, maintenance is not timely, and when the air leakage cannot be known, the green environment-friendly polymerization inhibitor intermediate is stored, deterioration and damage are extremely easy to occur after the green environment-friendly polymerization inhibitor intermediate is stored, and therefore the intermediate storage tank for the green environment-friendly polymerization inhibitor is needed.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an intermediate storage tank for an environment-friendly polymerization inhibitor.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The intermediate storage tank for the green environment-friendly polymerization inhibitor comprises an intermediate tank body, wherein the top end of the intermediate tank body is fixedly connected with a liquid inlet valve, the top end of the liquid inlet valve is in threaded connection with a connecting pipe, the bottom end of the connecting pipe is provided with a top seal detection mechanism, the top pipe seal detection mechanism comprises a seal valve arranged at the bottom end of the connecting pipe, one side of the outer wall of the connecting pipe is fixedly connected with a test valve, one end of the test valve is in threaded connection with a communication branch pipe, one end of the communication branch pipe is welded with a collecting pipe, the top end of the intermediate tank body is fixedly connected with a suction pipe, one side of the outer wall of the collecting pipe is fixedly connected with a conveying pipe, one end of the conveying pipe is fixedly provided with a pressure sensor, the top end of the suction pipe is fixedly provided with a negative pressure pump which is communicated with, one side of the outer wall of the collecting pipe is fixedly connected with a test side pipe, one end of the test side pipe is provided with a middle seal detection mechanism, and a sealing assembly is arranged below the test side pipe.
The connecting pipe is connected with the sealing valve through threads, the connecting pipe and the communicating branch pipe are made of stainless steel, the locking valve is connected with the output end of the negative pressure pump through threads, an outer pipe which is communicated with the locking valve is fixedly arranged at one end of the locking valve, the outer pipe is made of stainless steel, a plurality of protection frames are welded on one side of the outer wall of the middle body tank body, the protection frames are sequentially arranged at equal intervals from top to bottom, a climbing frame is fixedly connected to the inner wall of each protection frame, a controller is fixedly arranged on one side of the outer wall of each protection frame, a plurality of supports are fixedly connected to the top end of the middle body tank body and close to the edge line position of the top end of the middle body tank body, support ring rods are connected with the top ends of the supports, tank body valves are fixedly connected with the bottom ends of the outer wall of the collection pipe, and the middle body tank body are fixedly connected with the tank body valves.
When the technology is used, the controller starts the negative pressure pump to open the locking valve, the negative pressure pump enables the suction pipe to generate negative pressure, the tank valve is opened simultaneously, the test valve and the liquid inlet valve are opened, the sealing valve is closed, the test valve enters into the communicating branch pipe, negative pressure air enters into the suction pipe along the collecting pipe to realize external suction, the external discharge pipe realizes external discharge, and the liquid inlet valve is closed to realize negative pressure sealing operation on the connecting pipe. Secondly, the tank valve can pump negative pressure air in the middle tank into the collecting pipe, the collecting pipe is conveyed to the locking valve through the suction pipe, and the tank valve is closed.
The middle sealing detection mechanism comprises a side pipe valve which is arranged at one end part of a test side pipe in a threaded manner, a feeding branch pipe which is communicated with one end part of the side pipe valve is fixedly arranged at the top end part of the feeding branch pipe, a sealing upper valve which is fixedly connected with a middle body tank body is arranged at the top end part of the feeding branch pipe, a sealing lower valve is fixedly connected with the bottom end of the feeding branch pipe, the sealing upper valve is in threaded connection with the feeding branch pipe, and the feeding branch pipe and the outer wall of the test side pipe are both smooth surfaces.
When the technology is used, the locking upper valve is closed and the side pipe valve is opened, the locking lower valve is closed and locked, negative pressure air enters the side pipe valve, negative pressure enters the testing side pipe from the air side pipe valve, the collecting pipe enters the suction pipe, the suction pipe is discharged from the outer pipe through the locking valve, and the side pipe valve is closed after the negative pressure reaches a specified value.
The bottom sealing detection assembly comprises a detection valve arranged below a testing side pipe, one end of the detection valve is fixedly connected with a collecting pipe, the other end of the detection valve is in threaded communication with a connecting branch pipe, one end of the connecting branch pipe is welded with a detection bottom pipe, one end of the detection bottom pipe is in threaded communication with a sealing valve, the sealing valve is fixedly communicated with an intermediate tank body, one end of the detection bottom pipe is in threaded communication with a sealing valve, one end of the sealing valve is welded with a communicating pipe which is communicated with the sealing valve, the sealing valve and the sealing valve are symmetrically arranged relative to the detection bottom pipe, and the detection bottom pipe is made of stainless steel.
When the technology is used, the detection valve is opened to close the sealing valve and the sealing valve, a passage between the detection bottom pipe and the communicating pipe is plugged, negative pressure air in the detection bottom pipe flows along the connecting branch pipe, the negative pressure air enters the collecting pipe through the detection valve, enters the suction pipe along the collecting pipe, and is discharged upwards along the locking valve through the outer discharge pipe, so that the negative pressure plugging of the detection bottom pipe can be realized by closing the detection valve after the negative pressure of the detection bottom pipe is detected.
The invention has the technical effects and advantages that:
According to the invention, the top seal detection mechanism is adopted, the negative pressure pump is started to open the locking valve, the negative pressure pump enables the suction pipe to generate negative pressure, the tank valve is opened, the test valve and the liquid inlet valve are opened, the sealing valve is closed, negative pressure air enters the suction pipe along the collecting pipe to realize external pumping, the liquid inlet valve is closed to realize negative pressure sealing operation on the connecting pipe, when the connecting pipe is tested, the test valve is opened, the pressure sensor can realize negative pressure air sensing on the collecting pipe through the conveying pipe, whether the connecting pipe has leakage problem or not can be timely known, the leakage problem can be timely known, the instant maintenance is realized, and the deterioration and damage easily caused after the green environment-friendly polymerization inhibitor intermediate is stored are avoided.
According to the invention, through the middle sealing detection mechanism, the sealing upper valve is closed to open the side pipe valve and the sealing lower valve is closed to seal, negative pressure air enters the collecting pipe along the test side pipe, the side pipe valve is closed after the negative pressure reaches a specified value, and the side pipe valve is opened, so that the feeding branch pipe is communicated with the collecting pipe through the test side pipe, the sealing state of the feeding branch pipe can be detected, the problem of air leakage is known in time, and the problem that the environment-friendly polymerization inhibitor intermediate is easy to deteriorate and damage after being stored is avoided.
The invention adopts the bottom sealing detection assembly, the detection valve is opened to close the sealing valve and the sealing valve, the sealing valve can seal the passage between the detection bottom pipe and the communicating pipe, the detection valve enters the collecting pipe and the suction pipe along the collecting pipe, and the detection valve is opened, so that the detection bottom pipe is communicated with the collecting pipe through the connecting branch pipe and the detection valve, the sealing detection of the detection bottom pipe can be realized, and the problem of air leakage can be known in time.
The mutual influence of a plurality of effects is timely known whether connecting pipe and midbody jar body leak gas earlier, can realize detecting operation to the feed branch pipe sealing state again, realizes sealed detection to detecting the bottom tube at last. To sum up can in time know that the gas leakage appears in detection bottom tube, connecting pipe, feeding branch pipe and midbody jar body, in time inform maintenance personnel to maintain, avoid causing behind the storage green polymerization inhibitor midbody to cause the damage of rotting.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an intermediate storage tank for an environment-friendly polymerization inhibitor.
Fig. 2 is a schematic diagram of a top view structure of an intermediate storage tank for an environment-friendly polymerization inhibitor.
FIG. 3 is a schematic view of a cut-off partial structure of a tank valve and intermediate tank connection of the present invention.
Fig. 4 is an enlarged schematic view of the structure of fig. 3a according to the present invention.
Fig. 5 is a schematic view showing a partial structure of a junction between a suction pipe and a negative pressure pump according to the present invention.
FIG. 6 is a schematic view of a cut-off partial structure of the junction of the intermediate tank and the upper seal valve of the present invention.
Fig. 7 is a schematic view showing the bottom structure of the intermediate storage tank for the green and environment-friendly polymerization inhibitor.
Fig. 8 is a schematic view of a cut-off partial structure of a junction between a butt joint pipe and an intermediate tank body.
In the figure, 1, an intermediate tank body; 2, a liquid inlet valve, 3, a connecting pipe, 4, a sealing valve, 5, a testing valve, 6, a communicating branch pipe, 7, a collecting pipe, 8, a conveying pipe, 9, a pressure sensor, 10, a suction pipe, 11, a negative pressure pump, 12, a locking valve, 13, an outer exhaust pipe, 14, a protecting frame, 15, a climbing frame, 16, a controller, 17, a support, 18, a supporting ring rod, 19, a tank valve, 20, a testing side pipe, 21, a side pipe valve, 22, a feeding branch pipe, 23, a sealing upper valve, 24, a sealing lower valve, 25, a detecting valve, 26, a connecting branch pipe, 27, a detecting bottom pipe, 28, a sealing valve, 29, a butt pipe, 30, a sealing valve, 31 and a communicating pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An intermediate storage tank for an environment-friendly polymerization inhibitor is shown in fig. 1-8, and a top seal detection mechanism, a middle seal detection mechanism and a bottom seal detection assembly are arranged on the intermediate storage tank for the environment-friendly polymerization inhibitor, and the arrangement of each mechanism and each assembly can timely know that the detection bottom pipe 27, the connecting pipe 3, the feeding branch pipe 22 and the intermediate tank body 1 leak air, timely inform maintenance personnel to maintain, avoid deterioration and damage caused by storing the environment-friendly polymerization inhibitor intermediate, and the specific structures of each mechanism and each assembly are as follows.
In the technical scheme, as shown in the accompanying drawings 1-5, the pipe jacking seal detection mechanism comprises a seal valve 4 arranged at the bottom end of a connecting pipe 3, a test valve 5 is fixedly communicated with one side of the outer wall of the connecting pipe 3 and positioned above a liquid inlet valve 2, one end part of the test valve 5 is in threaded communication with a communication branch pipe 6, one end part of the communication branch pipe 6 is welded with a collecting pipe 7, the top end of a middle tank body 1 is fixedly communicated with a suction pipe 10 near the center point of the middle tank body, one side of the outer wall of the collecting pipe 7 is fixedly connected with a conveying pipe 8 near the suction pipe 10, one end part of the conveying pipe 8 is fixedly provided with a pressure sensor 9, one side of the outer wall of the collecting pipe 7 is fixedly connected with a test side pipe 20 near the middle part of the collecting pipe, one end part of the test side pipe 20 is provided with a middle seal detection mechanism, a bottom seal detection assembly is arranged below the test side pipe 20, the connecting pipe 3 is in threaded connection and communicated with the seal valve 4, and both the connecting pipe 3 and the communication branch pipe 6 are made of stainless steel materials.
In the technical scheme, as shown in figures 1-5, the output end of a negative pressure pump 11 is in threaded connection with a locking valve 12, an outer exhaust pipe 13 communicated with one end part of the locking valve 12 is fixedly arranged, the outer exhaust pipe 13 is made of stainless steel materials, so that a negative pressure air suction pipe 10 enters the outer exhaust pipe 13 along the locking valve 12, the outer exhaust pipe 13 realizes the outer exhaust, a plurality of protection frames 14 are welded on one side of the outer wall of a middle body tank body 1, the protection frames 14 are sequentially and equidistantly arranged from top to bottom, a climbing frame 15 is fixedly connected to the inner wall of one protection frame 14, and a controller 16 is fixedly arranged on one side of the outer wall of one protection frame 14, so that when maintenance personnel overhauls, climbing can be realized through the climbing frame 15, and the plurality of protection frames 14 can realize protection to maintenance personnel.
The top end of the intermediate tank body 1 is fixedly connected with a plurality of brackets 17 near the edge line position of the intermediate tank body 1, the top ends of the brackets 17 are connected with support ring rods 18, the brackets 17 are fixedly connected with the support ring rods 18, the bottom end of the outer wall of the collecting pipe 7 is provided with a tank body valve 19, the collecting pipe 7, the intermediate tank body 1 and the tank body valve 19 are fixedly connected, so that the support ring rods 18 can be supported through the brackets 17, the stability above the intermediate tank body 1 is improved through the brackets 17, and the tank body valve 19 can be opened to form a communication state between the intermediate tank body 1 and the collecting pipe 7.
In the technical scheme, as shown in fig. 6, the middle sealing detection mechanism comprises a side pipe valve 21 arranged at one end part of a test side pipe 20 in a threaded manner, a feeding branch pipe 22 communicated with one end part of the side pipe valve 21 is fixedly arranged, a sealing upper valve 23 fixedly connected with the middle body tank body 1 is arranged at the top end part of the feeding branch pipe 22, a sealing lower valve 24 is fixedly connected with the bottom end of the feeding branch pipe 22, the sealing upper valve 23 is in threaded connection with the feeding branch pipe 22, and the feeding branch pipe 22 and the outer wall of the test side pipe 20 are both smooth surfaces.
In this technical scheme, as shown in fig. 6-8, the bottom sealing detection assembly comprises a detection valve 25 arranged below a test side pipe 20, one end of the detection valve 25 is fixedly connected with a header pipe 7, the other end of the detection valve 25 is in threaded communication with a connecting branch pipe 26, one end of the connecting branch pipe 26 is welded with a detection bottom pipe 27, one end of the detection bottom pipe 27 is in threaded communication with a sealing valve 28, an opposite connecting pipe 29 is fixedly communicated between the sealing valve 28 and the intermediate tank 1, one end of the detection bottom pipe 27 is in threaded communication with a sealing valve 30, and one end of the sealing valve 30 is welded with a communicating pipe 31. The sealing valve 30 and the sealing valve 28 are symmetrically disposed with respect to the detection bottom pipe 27, and the detection bottom pipe 27 is made of stainless steel material.
The working principle of the intermediate storage tank for the green environment-friendly polymerization inhibitor is as follows:
In the first step, when the top is sealed, the controller 16 starts the negative pressure pump 11 to open the locking valve 12, the negative pressure pump 11 enables the suction pipe 10 to generate negative pressure, meanwhile, the tank valve 19 is opened, the test valve 5 and the liquid inlet valve 2 are opened, and the sealing valve 4 is closed, so that air in the connecting pipe 3 is pumped into the test valve 5 under negative pressure, the air enters the communicating branch pipe 6 through the testing valve 5 and enters the collecting pipe 7 through the communicating branch pipe 6, the negative pressure air enters the suction pipe 10 along the collecting pipe 7 to realize external pumping, the suction pipe 10 enters the external pipe 13 along the locking valve 12 to realize external discharging, and the liquid inlet valve 2 is immediately closed to realize negative pressure sealing operation on the connecting pipe 3. Secondly, the tank valve 19 can pump negative pressure air in the middle tank 1 into the collecting pipe 7, the negative pressure air is conveyed to the locking valve 12 through the suction pipe 10 by the collecting pipe 7, then the locking valve 12 realizes external discharge through the external discharge pipe 13, and the tank valve 19 is closed after the negative pressure in the suction pipe 10 is finished.
And in the second step, when the middle part is sealed, the locking upper valve 23 is closed and the side pipe valve 21 is opened, and the locking lower valve 24 is closed and locked, so that negative pressure air in the feeding branch pipe 22 flows into the side pipe valve 21, the negative pressure enters the testing side pipe 20 from the air side pipe valve 21, the negative pressure air enters the collecting pipe 7 along the testing side pipe 20, enters the suction pipe 10 from the collecting pipe 7, the suction pipe 10 is discharged from the outer pipe 13 through the locking valve 12, and the negative pressure closes the side pipe valve 21 after reaching a specified value, so that negative pressure sealing operation on the feeding branch pipe 22 can be realized.
And step three, when the bottom is sealed, the detection valve 25 is opened to close the sealing valve 30 and the sealing valve 28, and the sealing valve 30 can seal the passage between the detection bottom pipe 27 and the communicating pipe 31, so that the sealing valve 28 can seal the butt joint pipe 29. Negative pressure air in the detection bottom tube 27 flows along the connecting branch tube 26, the negative pressure air enters the detection valve 25 along the connecting branch tube 26, the negative pressure air enters the collecting tube 7 through the detection valve 25, enters the suction tube 10 along the collecting tube 7, and the upper discharge operation is realized through the outer discharge tube 13 along the locking valve 12, so that after the negative pressure of the detection bottom tube 27 is detected, the negative pressure blocking of the detection bottom tube 27 can be realized by closing the detection valve 25. The locking valve 12 is then closed and the negative pressure pump 11 is closed.
And fourthly, when checking the sealing state of the intermediate tank body 1, the tank body valve 19 can be opened, the intermediate tank body 1 and the collecting pipe 7 form a communication state through the tank body valve 19, the pressure sensor 9 can realize negative pressure detection on the collecting pipe 7 through the conveying pipe 8, when the pressure value of the pressure sensor 9 is not fluctuated, the sealing state of the intermediate tank body 1 is normal, when the pressure sensor 9 has the problem that the fluctuation of negative pressure data exceeds the standard, the intermediate tank body 1 is sealed, and the intermediate tank body 1 can be maintained. When the connecting pipe 3 is tested, the testing valve 5 is opened, negative pressure air in the connecting pipe 3 is communicated with the collecting pipe 7 through the communicating branch pipe 6, the pressure sensor 9 can realize negative pressure air sensing on the collecting pipe 7 through the conveying pipe 8, if the pressure is not fluctuated, the connecting pipe 3 is sealed normally, and when the pressure exceeds the pressure fluctuation range set by the controller 16, the problem of the sealing state of the connecting pipe 3 is known to occur, and the sealing state is maintained in time.
The side valve 21 is opened again so that the feed branch 22 communicates with the header 7 via the test side pipe 20, so that the pressure sensor 9 performs a negative pressure detection on the header 7 via the delivery pipe 8, and when the pressure exceeds the fluctuation range, the feed branch 22 is sealed with problems, and when it is not fluctuated, the feed branch 22 is normal. Then open check valve 25, detect the bottom tube 27 and be linked together through connecting branch pipe 26 and through check valve 25 and header 7 like this, pressure sensor 9 is through conveyer pipe 8 and header 7 intercommunication test, when pressure sensor 9 sensing data fluctuation exceeds the controller 16 and presumes the scope, then detect the bottom tube 27 and have leakage problem, when controller 16 does not undulant, then know that detect the bottom tube 27 and leak unsealed, open jar body valve 19 again, intermediate tank 1 communicates through jar body valve 19 with header 7, pressure sensor 9 realizes the test to header 7 through conveyer pipe 8 like this, when pressure sensor 9 appears pressure fluctuation, can know that intermediate tank 1 appears sealed leakage, intermediate tank 1 seals normally when not producing fluctuation.
Step five, during the storage protection, can support the support circle pole 18 through a plurality of supports 17, a plurality of supports 17 increase the stability of midbody jar body 1 top like this, when maintenance personal overhauls, can realize climbing through climbing frame 15, a plurality of protection frames 14 can realize the protection to the maintenance personal. When in storage, the test valve 5 is closed, the sealing valve 4 and the liquid inlet valve 2 are opened, the green environment-friendly polymerization inhibitor intermediate is fed into the connecting pipe 3 through the sealing valve 4, and is fed into the intermediate tank body 1 through the connecting pipe 3 along the liquid inlet valve 2 for storage.
The details not described in detail in the specification belong to the prior art known to those skilled in the art, and model parameters of each electric appliance are not specifically limited, and conventional equipment is used.
The foregoing is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.