A kind of Distribution system for high-danger high-purity chemical liquidTechnical field
The present invention relates to chemical industry environmental protection apparatus field, be specifically related to a kind of Distribution system for high-danger high-purity chemical liquid.
Background technology
At present the high-risk chemical liquid allotter of chemistry environmental protection industry (epi) application is mostly to carry out point by simple manual methodJoin, i.e. the conveying pipe carrying high-risk chemical liquid is coupled together by operator with the hands such as glove, mask, and one end is positioned over appearanceIn device, one end is positioned in the accumulator tank of high-risk chemical liquid, opens the valve of conveyance conduit, and high-risk chemical liquid is just flowed intoIn container, but owing to these high-risk chemical liquids have severe corrosive and strong volatilizationization mostly, pipeline and joint thereof once go outNow leak acid, bring injury not only can to the health of workman, and owing to there is no perfect safety prevention measure, easily cause safetyAccident and pollute surrounding, severe patient can bring heavy economic losses to enterprise.
In order to avoid the generation of above-mentioned situation, the employing pump valve tubing that the industry also has is to carry out high-risk chemical liquidConveying, but in detections such as the overtemperature of links, superpressure, leakages with take precautions against the most perfect, have does not the most adoptTaking any precautionary measures, safety precautions and surplus to whole course of conveying simultaneously gives warning in advance, the most inadequate, if once certainAt one, leakage or timely discovery lack material, it is necessary to parking completely, thus bring inconvenience to production.
Summary of the invention
For solving above-mentioned technical problem, we have proposed a kind of Distribution system for high-danger high-purity chemical liquid, by using PLCSwitch board automatically controls described dosing pump and chemical liquids is transported in described dispensing cabinet from described storage tank；In described unloading cabinetIBC bucket is connected with described storage tank by described double-skin duct, and chemical liquids capacity starts less than during predetermined value in described storage tankChemical liquids is fed described storage tank by replenishment pump；It is fixed to production line that described PLC control cabinet controls described drawing liquid pump and electropneumatic valveAmount carries high-risk chemical liquid；Reach the purpose of Automatic Conveying high-risk high purity chemical liquid, substantially increase operation justVictory and safety.
For reaching above-mentioned purpose, technical scheme is as follows:
A kind of Distribution system for high-danger high-purity chemical liquid, by storage tank, dosing pump, unloading cabinet, dispensing cabinet and PLC control cabinet groupBecome；
It is provided with IBC bucket, double-skin duct and replenishment pump in described unloading cabinet；Described dispensing cabinet is divided into a plurality of allotter,Described allotter includes that the drawing liquid pump being connected with the described PLC control cabinet signal of telecommunication, electropneumatic valve, temperature sensor, pressure passSensor, leak sensor and double-skin duct composition；
Described PLC control cabinet automatically controls described dosing pump and chemical liquids is transported in described dispensing cabinet from described storage tank；IBC bucket in described unloading cabinet is connected with described storage tank by described double-skin duct, and chemical liquids capacity is low in described storage tankWhen predetermined value, start described replenishment pump chemical liquids is fed described storage tank；
Described PLC control cabinet controls described drawing liquid pump and electropneumatic valve quantitatively carries high-risk chemical liquid to production line；The temperature of the high-risk chemical liquid in described temperature sensor and pressure transducer whole process measurement double-skin duct internal layer respectively and pressurePower, and temperature signal and pressure signal are fed back to described PLC control cabinet；Described leak sensor whole process is measured in double-skin ductChemical liquids in outer layer, whether have leakage, and the waste gas in casing is monitored, and detection signal is fed back to described PLCSwitch board.
Preferably, described unloading cabinet is divided into two-layer, and its upper strata is provided with IBC bucket and double-skin duct, and end face side, upper strataBeing provided with the upper orifice of exhaust pipe mouth and bimetallic tube, the lower nozzle of described bimetallic tube is connected with the IBC bucket being located in unloading cabinet, describedEnd face opposite side is provided with observation window, and observation window is provided with safety gloves；Described unloading cabinet lower floor is provided with replenishment pump and pump box, instituteIt is provided with drainage pump in stating pump box, and described drainage pump will leak out waste liquid by leakage delivery pipe and discharges unloading cabinet；Described excretory ductIt is provided with bleed valve and position sensor of valve.
Preferably, described unloading layer one side cashier's office in a shop is provided with rolling screen door, and described rolling screen door side is provided with rolling screen door sensingDevice；It is provided with IBC bucket inside described unloading layer another side cashier's office in a shop and connects sensor and IBC bucket position sensor.
Preferably, the unloading cabinet end face side above described rolling screen door is provided with cleaning spray gun.
Preferably, described unloading cabinet lower level floor is provided with pallet, and described pallet is skewed setting, and described pump box is placedIn described pallet least significant end.
Preferably, the excretory duct in described unloading cabinet lower floor cabinet is provided with bleed valve and position sensor of valve, described in unloadExcretory duct outside Zai Gui lower floor cabinet is provided with excretion detection pipeline.
Preferably, described PLC control cabinet is provided with overtemperature alarm, over pressure alarm device and leakage alarm, described overtemperatureAlarm, over pressure alarm device and leakage alarm are respectively by described PLC control cabinet and described temperature sensor, pressure transducerConnect with the leak sensor signal of telecommunication.
Preferably, being provided with heat sink, dropping equipment, scavenger fan and exhaust damper in described casing, described cooling fillsPut, dropping equipment, scavenger fan and the electrical connection of exhaust damper equal and described PLC control cabinet, and by described PLC control cabinet follow procedureControl.
Preferably, described double-skin duct is provided with automatic switching control equipment, occurs that leakage sends the same of warning at double-skin ductTime, described automatic switching control equipment excises faulty section to be repaired.
Preferably, described electropneumatic valve connects position indicator, and indicating positions signal is passed by described position indicatorGiving described PLC control cabinet, described PLC control cabinet controls described electropneumatic valve, and described position according to indicating positions signalThe next procedure that indicator and electropneumatic valve and described PLC control cabinet control is interlocked control.
By technique scheme, the present invention by use PLC control cabinet automatically control described dosing pump by chemical liquids fromDescribed storage tank is transported in described dispensing cabinet；IBC bucket in described unloading cabinet is connected with described storage tank by described double-skin duct,And chemical liquids is fed described storage tank less than startup replenishment pump during predetermined value by chemical liquids capacity in described storage tank；Described PLC is controlledCabinet processed controls described drawing liquid pump and electropneumatic valve quantitatively carries high-risk chemical liquid to production line；Make operator away from high-riskHigh purity chemical liquid can complete to carry it, it is achieved that Automatic Conveying, substantially increases convenience and the safety of operation,Make security incident have to reduce significantly.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existingIn having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only thisSome embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible toOther accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the top view schematic diagram of a kind of Distribution system for high-danger high-purity chemical liquid disclosed in the embodiment of the present invention；
Fig. 2 is that the master of a kind of Distribution system for high-danger high-purity chemical liquid unloading cabinet disclosed in the embodiment of the present invention regards sectionSchematic diagram；
Fig. 3 is a kind of Distribution system for high-danger high-purity chemical liquid perspective view disclosed in the embodiment of the present invention；
Fig. 4 is that the back of the body of a kind of Distribution system for high-danger high-purity chemical liquid unloading cabinet disclosed in the embodiment of the present invention regards sectionStructural representation.Numeral and the corresponding component title represented by letter in figure:
1. storage tank 2. dosing pump 3. unloads cabinet 31.IBC bucket 32. replenishment pump 33. exhaust pipe mouth 34. upper orifice35. observation window 36. safety gloves 37. pump box 38. replenishment pump 39. bleed valve 310. position sensor of valveIt is clear that 311. rolling screen door 312. rolling screen door sensor 313.IBC buckets connect sensor 314.IBC bucket position sensor 315.Wash spray gun 316. pallet 317. bleed valve 318. position sensor of valve 319. excretion detection pipeline 4. dispensing cabinet5.PLC switch board 51. overtemperature alarm 52. over pressure alarm device 53. leakage alarm 54. liquid level alarm 6. pointsOrchestration 61. drawing liquid pump 62. electropneumatic valve 63. temperature sensor 64. pressure transducer 65. leak sensor66. heat sink 67. dropping equipment 68. scavenger fan 69. exhaust damper 7. automatic switching control equipment 8. positions refer toShow the device 9. special tank car of chemical liquids
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeDescribe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based onEmbodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premiseEmbodiment, broadly falls into the scope of protection of the invention.
The invention provides a kind of Distribution system for high-danger high-purity chemical liquid, its operation principle is by using PLC to controlCabinet automatically controls described dosing pump and chemical liquids is transported in described dispensing cabinet from described storage tank；IBC bucket in described unloading cabinetIt is connected with described storage tank by described double-skin duct, and chemical liquids capacity starts replenishment pump when being less than predetermined value in described storage tankChemical liquids is fed described storage tank；Described PLC control cabinet controls described drawing liquid pump and electropneumatic valve quantitatively carries to production lineHigh-risk chemical liquid；Reached the purpose of Automatic Conveying high-risk high purity chemical liquid, substantially increase operation convenience andSafety.
Below in conjunction with embodiment and detailed description of the invention, the present invention is further detailed explanation.
Embodiment.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of Distribution system for high-danger high-purity chemical liquid, by two storage tanks 1, meteringPump 2, unloading cabinet 3, dispensing cabinet 4 and PLC control cabinet 5 form；
IBC bucket 31, double-skin duct and replenishment pump 32 it is provided with in described unloading cabinet 3；Described dispensing cabinet 4 is divided into a plurality of pointsOrchestration 6, described allotter 6 includes that the drawing liquid pump 61 being connected with described PLC control cabinet 5 signal of telecommunication, electropneumatic valve 62, temperature passSensor 63, pressure transducer 64, leak sensor 65 and double-skin duct composition；Described PLC control cabinet 5 automatically controls described meteringChemical liquids is transported in described dispensing cabinet 4 by pump 2 from described storage tank 1；I BC bucket 31 in described unloading cabinet 3 passes through double-skin ductBe connected with described storage tank 1, and in described storage tank 1 chemical liquids capacity less than predetermined value time start described replenishment pump 32 by chemical liquidsFeed described storage tank 1；Described PLC control cabinet 5 controls described drawing liquid pump 61 and electropneumatic valve 62 and quantitatively carries height to production lineDanger chemical liquid；The temperature of the high-risk chemical liquid in described temperature sensor 63 and pressure transducer 64 whole process measurement internal layer respectivelyDegree and pressure, and temperature signal and pressure signal are fed back to described PLC control cabinet 5；Described leak sensor 65 is omnidistance to be measuredWhether the chemical liquids in double-skin duct has leakage in outer layer, and is monitored the waste gas in casing, and it is anti-to detect signalIt is fed to described PLC control cabinet 5.
Wherein, described unloading cabinet 3 is divided into two-layer, and its upper strata is provided with IBC bucket 31 and double-skin duct, and end face side, upper strataBeing provided with the upper orifice 34 of exhaust pipe mouth 33 and bimetallic tube, the lower nozzle of described bimetallic tube is with the IBC bucket 31 being located in unloading cabinet 3 evenConnecing, described end face opposite side is provided with observation window 35, and observation window 35 is provided with safety gloves 36；Described unloading cabinet 3 lower floor is provided withReplenishment pump 32 and pump box 37, be provided with drainage pump 38 in described pump box 37, and described drainage pump 38 passes through double-skin duct by chemical liquidsIt is fed in storage tank 1 or dispensing cabinet 4；Described excretory duct is provided with bleed valve 39 and position sensor of valve 310.Described unloading cabinet3 upper strata one side are provided with rolling screen door 311, and described rolling screen door 311 side is provided with rolling screen door sensor 312；On described unloading cabinet 3It is provided with IBC bucket inside layer another side and connects sensor 313 and I BC bucket position sensor 314；Above described rolling screen door 311The end face side of unloading cabinet 3 is provided with cleaning spray gun 315；Described unloading cabinet 3 lower level floor is provided with pallet 316, and described pallet 316For skewed setting, described pump box 37 is positioned over described pallet 316 least significant end；On excretory duct in described unloading cabinet 3 lower floor cabinetBeing provided with bleed valve 317 and position sensor of valve 318, the excretory duct outside described unloading cabinet 3 lower floor cabinet is provided with excretion detection pipeRoad 319；Described PLC control cabinet 5 is provided with overtemperature alarm 51, over pressure alarm device 52 and leakage alarm 53, described overtemperature reportAlert device 51, over pressure alarm device 52 and leakage alarm 53 are respectively by described PLC control cabinet 5 and described temperature sensor 63, pressureForce transducer 64 and leak sensor 65 signal of telecommunication connect；Heat sink 66, dropping equipment 67, aerofluxus wind it is provided with in described casingFan 68 and exhaust damper 69, the equal and described PLC of described heat sink 66, dropping equipment 67, scavenger fan 68 and exhaust damper 69Switch board 5 electrically connects, and is controlled by described PLC control cabinet 5 follow procedure；Described double-skin duct is provided with automatic switching control equipment 7,While double-skin duct occurs that leakage sends warning, 7 faulty sections of described automatic switching control equipment excise to be repaired；Described automatically controlled gasDynamic valve 62 connects position indicator 8, and indicating positions signal is sent to described PLC control cabinet 5, institute by described position indicator 8State PLC control cabinet 5 and control described electropneumatic valve 62, and described position indicator 8 and ecp according to indicating positions signalThe next procedure that valve 62 controls with described PLC control cabinet 5 is interlocked control.
The normal operating sequence of the Distribution system for high-danger high-purity chemical liquid of the technical program is: with dosing pump 2 by storage tank 1In high-risk pure chemistry liquid automatically control be fed in dispensing cabinet 4, when the chemical liquid level in storage tank 1 is less than by PLC control cabinet 5During certain capacity, the liquid level signal detected is fed back to PLC control cabinet 5, PLC control cabinet 5 by the liquid level sensor 11 on storage tank 1The corresponding liquid level alarm 54 controlled will carry out warning reminding, now start unloading cabinet 3, make in the IBC bucket 31 in unloading cabinet 3Chemical liquids is fed in storage tank 1, simultaneously contact chemical liquids supplier, preparation chemical liquids special tank car 9 conveying supply chemical liquids.It addition, when producing line chemical liquids supply requirement amount and being less, it is possible to produced by unloading cabinet 3 and dispensing cabinet 4 direct union supply, meetDemand, storage tank 1 need not participate in.In order to ensure the regular supply when producing line chemical liquids supply and being bigger, two storage tanks 1, oneUsing as normal, one can be as standby.
By technique scheme, the present invention automatically controls described dosing pump 2 by chemical liquids by using PLC control cabinet 5It is transported in described dispensing cabinet 4 from described storage tank 1；IBC bucket 31 in described unloading cabinet 3 is by described double-skin duct and described storageTank 1 connects, and chemical liquids is fed described storage tank less than startup replenishment pump 32 during predetermined value by chemical liquids capacity in described storage tank 11；Described PLC control cabinet 5 controls described drawing liquid pump 61 and electropneumatic valve 62 and quantitatively carries high-risk chemical liquid to production line；MakeOperator can complete to carry it away from high-risk high purity chemical liquid, it is achieved that Automatic Conveying, substantially increases operationConvenience and safety, make security incident have and reduce significantly.
Above-described is only a kind of Distribution system for high-danger high-purity chemical liquid preferred implementation of the present invention, it should refer toGo out, for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to make someDeformation and improvement, these broadly fall into protection scope of the present invention.