CN206430395U - A kind of ultralow temperature steam trapping pumping system of the pressure that can quickly restore balance - Google Patents

A kind of ultralow temperature steam trapping pumping system of the pressure that can quickly restore balance Download PDF

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Publication number
CN206430395U
CN206430395U CN201621424121.XU CN201621424121U CN206430395U CN 206430395 U CN206430395 U CN 206430395U CN 201621424121 U CN201621424121 U CN 201621424121U CN 206430395 U CN206430395 U CN 206430395U
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pipeline
heat exchanger
cold
gas
liquid
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张锦铭
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Guangzhou Harmony Automation Technology Co Ltd
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Guangzhou Harmony Automation Technology Co Ltd
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Abstract

Pumping system is trapped the utility model discloses a kind of ultralow temperature steam of pressure that can quickly restore balance, including cold-trap pipeline and provided with compressor, the refrigerant pipeline of oil eliminator, refrigerant pipeline is divided into the first pipeline after oil eliminator, second pipeline and the 3rd pipeline, heat exchanger includes First Heat Exchanger, 3rd pipeline connects the first gas-liquid separator after the hot side of regenerator is flowed through, first gas-liquid separator separates the first gas pipeline of access gas tank, access the second gas pipeline of First Heat Exchanger hot side and import the second pipeline to flow through the first liquid line of First Heat Exchanger cold side, first gas pipeline is provided with the first control valve, the second control valve and first throttle device are sequentially provided with first liquid line, gas tank accesses the first pipeline by the pressure relief pipe provided with second throttling device.The utility model greatly shortens maintenance, maintenance, the time of breakdown judge, and the influence because of plant maintenance, maintenance, failure to the equipment that forms a complete production network is minimized.

Description

A kind of ultralow temperature steam trapping pumping system of the pressure that can quickly restore balance
Technical field
The utility model is used for ultralow temperature steam and traps pump technical field, and more particularly to one kind can quickly restore balance pressure The ultralow temperature steam trapping pumping system of power.
Background technology
At present, known ultralow temperature steam trapping pump need to safeguard, maintain, breakdown judge when need the super of device interior Low-temperature refrigerant recovers to environment temperature to check the balance pressure of equipment.Restore balance pressure when by equipment downtime 24- It is allowed to rise again naturally to normal temperature within 48 hours.
Such equipment has the following disadvantages:
1. safeguarding, maintaining every time, breakdown judge needs wait just to check within 24-48 hours accurately balance pressure, cause It is whole safeguard, maintenance, breakdown judge time it is long, efficiency is low.
2. safeguarding, maintaining every time, breakdown judge needs wait just to check within 24-48 hours accurately balance pressure, cause Its supporting production equipment operating efficiency is seriously reduced, and unstable product quality even stops production.
Utility model content
Pump is caught to solve existing ultralow temperature steam to restore balance the pressure technical deficiency that time-consuming, the utility model is provided A kind of ultralow temperature steam trapping pumping system of pressure that can quickly restore balance, it can realize maintenance, guarantor within the extremely short time The foster, purpose of breakdown judge.
The utility model solves the technical scheme that its technical problem used:A kind of pressure that can quickly restore balance it is super Low temperature steam trap pumping system, including the refrigerant pipeline provided with compressor and oil eliminator and be located at it is cold in external vacuum equipment Trap pipeline, the refrigerant pipeline is divided into after oil eliminator directly to be flowed back to the first pipeline of compressor suction line, flows through successively The second pipeline of compressor suction line is accessed after cold-trap pipeline, the cold side of heat exchanger, the cold side of regenerator and is flowed through successively After the hot side of regenerator, the hot side of heat exchanger import cold-trap pipeline the 3rd pipeline, the heat exchanger include be located at regenerator and First Heat Exchanger between cold-trap pipeline, the 3rd pipeline connects the first gas-liquid separator after the hot side of regenerator is flowed through, the One gas-liquid separator separate access gas tank first gas pipeline, access First Heat Exchanger hot side second gas pipeline and The second pipeline is imported so as to flow through the first liquid line of First Heat Exchanger cold side, the first gas pipeline is provided with the first control The second control valve and first throttle device are sequentially provided with valve processed, first liquid line, the gas tank passes through provided with The pressure relief pipe of two throttling arrangements accesses the first pipeline.
The improvement of technical solutions of the utility model is further used as, second pipeline is provided with the 3rd control valve.
The improvement of technical solutions of the utility model is further used as, the 3rd control valve includes being sequentially arranged at the second pipeline On defrosting manual isolation valve and defrosting magnetic valve.
The improvement of technical solutions of the utility model is further used as, the heat exchanger includes being located at First Heat Exchanger and cold-trap The second heat exchanger between pipeline, the second gas pipeline for flowing through First Heat Exchanger hot side connects the second gas-liquid separator, the second gas Liquid/gas separator separates the third gas pipeline of the second heat exchanger hot side of access and imports the second pipeline to flow through the second heat exchanger The second liquid pipeline of cold side, second liquid pipeline is provided with the 3rd throttling arrangement.
The improvement of technical solutions of the utility model is further used as, the heat exchanger includes being located at the second heat exchanger and cold-trap The 3rd heat exchanger between pipeline, flows through the third gas pipeline connection liquid trap of the second heat exchanger hot side, and liquid trap separates access The 3rd liquid line and the second pipeline of remittance of 3rd heat exchanger hot side are so as to flow through the 4th liquid line of the 3rd heat exchanger cold side Road, the 4th liquid line be provided with the 4th throttling arrangement, second pipeline flow through successively cold-trap pipeline, the 3rd heat exchanger it is cold Compressor suction line, described the are accessed after side, the cold side of the second heat exchanger, the cold side of First Heat Exchanger, the cold side of regenerator Two pipelines are provided with the 4th control valve between cold-trap pipeline and the 3rd heat exchanger.
The improvement of technical solutions of the utility model is further used as, the heat exchanger included cold heat exchanger, the 3rd liquid Pipeline stream separates the 5th liquid line for importing cold-trap pipeline after the hot side of cold heat exchanger and stream passes through cold heat exchanger cold side The 6th liquid line of the 3rd heat exchanger cold side is accessed afterwards, and the 5th liquid line is provided with the 5th control valve and the 5th throttling Device, the 6th liquid line is provided with the 6th throttling arrangement.
The improvement of technical solutions of the utility model is further used as, the 5th control valve includes being sequentially arranged at the 5th liquid Refrigeration manual isolation valve and refrigeration magnetic valve on pipeline.
It is further used as on the improvement of technical solutions of the utility model, the 3rd pipeline between oil eliminator and regenerator Provided with water-cooled condenser.
It is further used as on the improvement of technical solutions of the utility model, the 3rd pipeline in water-cooled condenser and regenerator Between be provided with device for drying and filtering.
It is further used as the improvement of technical solutions of the utility model, first control valve is pressure release electromagnetic valve, described the Four control valves are backflow defrosting manual isolation valve.
The beneficial effects of the utility model:Add second control valve before first throttle device, when steam trapping pump is needed When checking balance pressure, the second control valve first closed before first throttle device interrupts the cooling heat exchange stream of its whole system Journey, is then heated to cold-trap pipeline and the pipeline of device interior second, the 3rd pipeline and each part, when internal duct part because The air-inflated pressure that temperature rise occurs also is increased, and is opened when device controller detects pressure rise to setting value First control valve stores unnecessary gaseous refrigerant to gas tank, and the first control valve is closed when high-pressure is less than setting value To ensure system high pressure in the reasonable scope.When device controller detects equipment after the heating of built-in system temperature recovers to normal temperature Shut down, the pressure after now shutting down is both accurate balance pressure.
Dimension can be greatly shortened in the pressure that about restored balance in 15 minutes by above-mentioned technical proposal the utility model Shield, maintenance, the time of breakdown judge, the influence because of plant maintenance, maintenance, failure to the equipment that forms a complete production network is minimized.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is the utility model structural representation.
Embodiment
Reference picture 1, that show the concrete structure of the preferred embodiment of the utility model.It will be detailed below this reality With the design feature of new each part, and it is with shown in Fig. 1 if being described to during direction (upper and lower, left and right, before and after) Structure be that with reference to describing, but actual use direction of the present utility model is not limited thereto.
The utility model provide a kind of pressure that can quickly restore balance ultralow temperature steam trapping pumping system, including provided with The refrigerant pipeline of compressor 1 and oil eliminator 2 and the cold-trap pipeline 3 being located in external vacuum equipment, the refrigerant pipeline is through oil Be divided into after separator 2 directly flow back to the first pipeline 4 of the suction line of compressor 1, flow through successively cold-trap pipeline 3, heat exchanger it is cold The second pipeline 7 of the suction line of compressor 1 is accessed after side, the cold side of regenerator 5 and flows through the hot side of regenerator 5 successively, change Imported after the hot side of hot device on the 3rd pipeline 6 of cold-trap pipeline 3, the 3rd pipeline 6 between oil eliminator 2 and regenerator 5 according to It is secondary to be provided with water-cooled condenser 8 and device for drying and filtering 9.What the heat exchanger included being located between regenerator 5 and cold-trap pipeline 3 first changes Hot device 10, the 3rd pipeline 6 connects the first gas-liquid separator 11, the first gas-liquid separator after the hot side of regenerator 5 is flowed through 11 will separate by the refrigerant of water-cooled condenser 8 and the condensed gas-liquid two-phase of regenerator 5, and gaseous refrigerant is low boiling system Cryogen, liquid refrigerant is higher boiling refrigerant, and the first gas-liquid separator 11 separates the first gas pipeline of access gas tank 12 13rd, the second gas pipeline 14 of the access hot side of First Heat Exchanger 10 and the second pipeline of remittance 7 are so as to flow through First Heat Exchanger 10 First liquid line 15 of cold side, the first gas pipeline 13 is provided with the first control valve 16, when equipment starts or the row of operation When atmospheric pressure is higher than setting value, the first control valve 16, which is opened, leaks into unnecessary high-pressure gaseous refrigerant in gas tank 12, works as pressure The first control valve 16 is closed during less than setting value, to ensure equipment pressure duct pressure in rational pressure limit value.It is described The second control valve 17 and first throttle device 18, the second control valve when equipment is normally run are sequentially provided with first liquid line 15 17 are in open mode, the second control valve 17 is closed when device activation restores balance pressure functional interrupt its normal refrigeration and change Thermal cycle, first throttle device 18 first gas-liquid separator 11 is separated after liquid refrigerant throttling after enter First Heat Exchanger The condensation of 10 cold sides enters the gaseous refrigerant of the hot side of First Heat Exchanger 10 by the first gas-liquid separator 11 and then passes through regenerator 5 Cold side returns to the suction inlet of compressor 1.The gas tank 12 passes through the access of pressure relief pipe 20 first provided with second throttling device 19 Pipeline 4, the gaseous refrigerant for being stored into gas tank 12 slowly flows back to refrigerating circulation.
Wherein, second pipeline 7 is provided with the 3rd control valve.3rd control valve includes being sequentially arranged at the second pipeline Defrosting manual isolation valve 21 and defrosting magnetic valve 22 on 7, open shape is in when equipment is run during defrosting manual isolation valve 21 State, when being in cold-trap in external vacuum equipment and needing defrosting, opens defrosting magnetic valve 22, the high temperature after compressor 1 compresses is high Compression refrigerant enters cold-trap pipeline 3 in vacuum equipment, and it is heated and then passes through heat exchanger cold side by the 4th control valve 39, return The hot cold side of device 5, the suction line of compressor 1 is returned to, when the temperature of cold-trap reaches setting value, defrosting magnetic valve 22 is closed.
The heat exchanger includes the second heat exchanger 23 being located between First Heat Exchanger 10 and cold-trap pipeline 3, flows through first and changes The second gas pipeline 14 of the hot hot side of device 10 connects the second gas-liquid separator 24, and the second gas-liquid separator 24 will be by the first heat exchange The refrigerant separation of the condensed gas-liquid two-phase of device 10, gaseous refrigerant is low boiling point refrigerant, and liquid refrigerant is higher boiling Refrigerant, the second gas-liquid separator 24 separates the third gas pipeline 25 of the access hot side of the second heat exchanger 23 and imports the second pipeline 7 so that flow through the second liquid pipeline 26 of the cold side of the second heat exchanger 23, and second liquid pipeline 26 is provided with the 3rd throttling arrangement 27. 3rd throttling arrangement 27 second gas-liquid separator 24 is separated after liquid refrigerant throttling after enter the cold side of the second heat exchanger 23 Condensation enters the gaseous refrigerant of the hot side of the second heat exchanger 23 by the second gas-liquid separator 24, subsequently into First Heat Exchanger 10 Cold side, the cold side of regenerator 5 return to the suction line of compressor 1.The heat exchanger includes being located at the second heat exchanger 23 and cold-trap pipeline 3 Between the 3rd heat exchanger 28, flow through the hot side of the second heat exchanger 23 third gas pipeline 25 connection liquid trap 29, liquid trap 29 will Assemble by the refrigerant of the condensed gas-liquid two-phase of the second heat exchanger 23, liquid trap 29 separates the access hot side of the 3rd heat exchanger 28 The 3rd liquid line 30 and the second pipeline 7 is imported to flow through the 4th liquid line 31 of the cold side of the 3rd heat exchanger 28, the 4th Liquid line 31 is provided with the 4th throttling arrangement 32, and the 4th throttling arrangement 32 throttles the liquid refrigerant separated from liquid trap 29 Enter the refrigerant that the cold side evaporative condenser of the 3rd heat exchanger 28 enters the 3rd heat exchanger hot side by liquid collecting 24 afterwards, subsequently into the Two switching heat-exchangers 23, the cold side of First Heat Exchanger 10, the cold side of regenerator 5 return to the suction line of compressor 1.Second pipeline 7 according to It is secondary to flow through cold-trap pipeline 3, the cold side of the 3rd heat exchanger 28, the cold side of the second heat exchanger 23, the cold side of First Heat Exchanger 10, backheat The suction line of compressor 1 is accessed after the cold side of device 5, second pipeline 7 is between cold-trap pipeline 3 and the 3rd heat exchanger 28 provided with the Four control valves 39.The heat exchanger included cold heat exchanger 40, and the 3rd liquid line 30 is flowed after the hot side of cold heat exchanger 40 Separate the 5th liquid line 33 for importing cold-trap pipeline 3 and stream the access cold side of the 3rd heat exchanger 28 after the cold side of cold heat exchanger 40 The 6th liquid line 34, the 5th liquid line 33 be provided with the 5th control valve and the 5th throttling arrangement 35, the described 5th Control valve includes the refrigeration manual isolation valve 37 being sequentially arranged on the 5th liquid line 33 and refrigeration magnetic valve 38, and equipment is normally transported The manual isolation valve 37 that freezes during row is in open mode, when the cold-trap pipeline 3 for being in external vacuum equipment needs cooling trapping true During vapour molecule in Altitude, the liquid that the refrigeration throttling arrangement 35 of magnetic valve 38 the 5th will be separated from the 4th heat exchanger hot side is opened Enter outside cold-trap pipeline 3 after the throttling of state refrigerant to cool to it and then cold by the 3rd heat exchanger by the 4th control valve 39 Side, the second heat exchanger cold side, First Heat Exchanger cold side, the cold side of regenerator 5, return to the suction line of compressor 1, the 6th liquid Pipeline 34 is provided with the 6th throttling arrangement 36.The liquid refrigerant that 6th throttling arrangement 36 will be separated from the mistake hot side of cold heat exchanger 40 Enter the cold side evaporation supercooling of supercooling heat exchanger 40 after throttling and the hot side of cold heat exchanger 40 was entered by the hot side of the 3rd heat exchanger 28 Refrigerant, it is cold subsequently into the cold side of the 3rd heat exchanger 28, the cold side of the second switching heat-exchanger 23, the cold side of First Heat Exchanger 10, regenerator 5 Side returns to the suction line of compressor 1.
First control valve 16 is pressure release electromagnetic valve, and the 4th control valve 39 is backflow defrosting manual isolation valve.
Operation principle of the present utility model:
1. the discharge oil-containing high pressure-temperature non-azeotropic refrigerant of compressor 1 is separated by oil in ultralow temperature steam catches pumping system It is divided into three tunnels after device 2, wherein, the second pipeline 7 enters the tunnel of water-cooled condenser 8 one connection defroster duct, is changed into condenser condensation Enter regenerator 5 after device for drying and filtering 9 after heat to condense with the heat exchange of return-air low temperature refrigerant, it is rear to enter the first gas-liquid separator 11。
2. the first pipeline 4 is the return line in oil eliminator 2, it is connected with the intake line of compressor 1, works as oil eliminator Oil in 2 runs up to its internal oil level control ball-cock assembly after certain altitude and opened, and oil is returned by the suction line of compressor 1 To compressor 1.
3. the refrigerant of the 3rd pipeline HTHP enters outside true by defrosting manual isolation valve 21, defrosting magnetic valve 22 The cold-trap pipeline 3 of null device is given the pipeline in ultra low temperature state to carry out heating and risen again, and allows its pipeline to fill air in vacuum equipment Before return to normal temperature knot condensed water or frost exempted from pipe surface, the refrigerant after cold-trap pipeline 3 is through the 4th control valve 39(Backflow Manual isolation valve)The cold side of the 3rd heat exchanger 28 is returned to entering the system of the cold side of the 3rd heat exchanger 28 evaporation through the 4th throttling arrangement 32 Cryogen converges returns to the suction side of compressor 1 through the cold side of the second heat exchanger 23, the cold side of First Heat Exchanger 10, the cold side of regenerator 5.
4. when equipment detect compressor discharge pressure it is too high when, the first control valve 16 is opened is discharged into storage by some refrigerant Gas tank 12, the refrigerant into gas tank 12 by second throttling device 19 slowly returns to the suction side of compressor 1.
5. the non-azeotropic refrigerant for the vapour-liquid binary states for entering the first gas-liquid separator 11 is separated, the refrigerant of liquid passes through Enter the evaporation endothermic of First Heat Exchanger 10 after second control valve 17 and first throttle device 18, then returned after regenerator 5 To compressor suction side,
6. the vaporized refrigerant after the separation of the first gas-liquid separator 11 is than passing through the liquid system of first throttle device 18 The refrigerant of cryogen low boiling point, its point of two-way enters gas tank 12 by the first control valve 16 all the way, and first is entered all the way and is exchanged heat Device 10 and the refrigerant heat exchanger for entering the evaporation of the cold side of First Heat Exchanger 10 through first throttle device 18, it is rear to enter the second gas-liquid separation Device 24.
7. the non-azeotropic refrigerant for the vapour-liquid binary states for entering the second gas-liquid separator 24 is separated, the refrigerant of liquid passes through Enter the evaporation endothermic of the second heat exchanger 23 after 3rd throttling arrangement 27, then exchanged heat with entering first by first throttle device 18 The evaporated refrigerant of device 10 is converged returns to the suction side of compressor 1 through regenerator 5,
8. the vaporized refrigerant ratio after the separation of the second gas-liquid separator 24 passes through the liquid refrigeration of the 3rd throttling arrangement 27 The refrigerant of agent low boiling point, it enters the hot side of the second heat exchanger 23 with entering the cold side of the second heat exchanger 23 through the 3rd throttling arrangement 27 The refrigerant heat exchanger of evaporation, it is rear to enter liquid trap 29.
9. the refrigerant for entering liquid trap 29 is divided into two-way outlet, enter the 3rd heat exchanger through the 4th throttling arrangement 32 all the way 28 cold side evaporation endothermics, then converge through first with entering the evaporated refrigerant of the second heat exchanger 23 by the 3rd throttling arrangement 27 Heat exchanger 10, regenerator 5 return to the suction side of compressor 1.
10. another road refrigerant enters the hot side of the 3rd heat exchanger 28 with entering the 3rd heat exchanger 28 through the 4th throttling arrangement 32 The refrigerant heat exchanger of cold side evaporation, then entered back into cold heat exchanger 40.
11. entering refrigerant of the cold heat exchanger 40 by supercooling is divided into two-way outlet, all the way through the 6th throttling arrangement 36 Into cold heat exchanger 40 evaporate the refrigerant for entering the hot side of cold heat exchanger 40 through the hot side of the 3rd heat exchanger 28 be subcooled Heat exchange, then converges cold through the second heat exchanger 23 with the evaporated refrigerant by the 4th throttling arrangement 32 into the 3rd heat exchanger 28 Side, the cold side of First Heat Exchanger 10, the cold side of regenerator 5 return to the suction side of compressor 1,
12. another road refrigerant enters outer by refrigeration manual isolation valve 37, refrigeration magnetic valve 38, the 5th throttling arrangement 35 The cold-trap pipeline 3 of portion's vacuum equipment holds evaporation endothermic and cooled to cold-trap pipeline, and the cold-trap surface after cooling reaches ultralow temperature Start the vapour molecule in the vacuum environment residing for trapping, returned to by the refrigeration trap of cold-trap pipeline 3 after the 4th control valve 39 The cold side of 3rd heat exchanger 28 is converged through second with entering the refrigerant of the cold side of the 3rd heat exchanger 28 evaporation through the 4th throttling arrangement 32 The cold side of heat exchanger 23, the cold side of First Heat Exchanger 10, the cold side of regenerator 5 return to compressor suction side.
13. when equipment, which is in low-temperature condition, needs to check balance pressure, vacuum equipment residing for cold-trap pipeline 3 is taken out very Sky, closes the second control valve 17, opens defrosting magnetic valve 22, the high-temperature high-pressure refrigerant discharged with compressor 1 is to cold-trap pipeline 3 Heating, because in vacuum environment at cold-trap pipeline 3, its heat energy only has a small amount of loss, by the hot refrigerant of cold-trap pipeline 3 Enter the cold side of the 3rd heat exchanger 28 with entering the system that the 3rd heat exchanger 28 evaporates through the 4th throttling arrangement 32 through the 4th control valve 39 Cryogen converges returns to compressor suction side through the second heat exchanger 23, the cold side of First Heat Exchanger 10, the cold side of regenerator 5, and these are hot Refrigerant heats the purpose for reaching heating to the pipeline, the heat exchanger that are flowed through.
14. the liquid refrigeration under the pressure state that restores balance after equipment pipeline, heat exchanger heating under original low-temperature condition Agent can be caused device compressor discharge pressure high by thermal evaporation, be controlled when equipment detects when pressure at expulsion reaches setting value first Valve 16 processed is opened in the unnecessary gaseous coolant in part deposit gas tank 12, when equipment detects when pressure at expulsion drops to setting value the One control valve 16 is closed.
15. when equipment, which detects internal temperature, reaches setting value, closing restores balance pressure functional and by equipment downtime, It is balance pressure to observe its pressure after equipment high-low pressure is stable, and whole press process of recovering can be completed in 15 minutes.
Certainly, the invention is not limited to above-mentioned embodiment, and those skilled in the art are without prejudice to originally Equivalent variations or replacement can be also made on the premise of utility model spirit, these equivalent modifications or replacement are all contained in the application In claim limited range.

Claims (10)

1. a kind of ultralow temperature steam trapping pumping system of pressure that can quickly restore balance, it is characterised in that:Including provided with compressor With the refrigerant pipeline and the cold-trap pipeline being located in external vacuum equipment of oil eliminator, the refrigerant pipeline divides after oil eliminator Into directly flowing back to the first pipeline of compressor suction line, flow through cold-trap pipeline, the cold side of heat exchanger, the cold side of regenerator successively The second pipeline of compressor suction line is accessed afterwards and imports cold-trap after flowing through the hot side of regenerator, the hot side of heat exchanger successively 3rd pipeline of pipeline, the heat exchanger includes the First Heat Exchanger being located between regenerator and cold-trap pipeline, the 3rd pipeline The first gas-liquid separator is connected after the hot side of regenerator is flowed through, the first gas-liquid separator separates the first gas of access gas tank Pipeline, the second gas pipeline for accessing First Heat Exchanger hot side and the second pipeline of remittance are so as to flow through First Heat Exchanger cold side First liquid line, the first gas pipeline is provided with the first control valve, first liquid line and is sequentially provided with second Control valve and first throttle device, the gas tank access the first pipeline by the pressure relief pipe provided with second throttling device.
2. the ultralow temperature steam trapping pumping system of the pressure according to claim 1 that can quickly restore balance, it is characterised in that: Second pipeline is provided with the 3rd control valve.
3. the ultralow temperature steam trapping pumping system of the pressure according to claim 2 that can quickly restore balance, it is characterised in that: 3rd control valve includes the defrosting manual isolation valve being sequentially arranged on the second pipeline and defrosting magnetic valve.
4. the ultralow temperature steam trapping pumping system of the pressure according to claim 1 that can quickly restore balance, it is characterised in that: The heat exchanger includes the second heat exchanger being located between First Heat Exchanger and cold-trap pipeline, flows through the second of First Heat Exchanger hot side Gas piping connects the second gas-liquid separator, and the second gas-liquid separator separates the third gas pipeline of the second heat exchanger hot side of access With the second pipeline is imported so as to flow through the second liquid pipeline of the second heat exchanger cold side, second liquid pipeline is provided with the 3rd throttling Device.
5. the ultralow temperature steam trapping pumping system of the pressure according to claim 4 that can quickly restore balance, it is characterised in that: The heat exchanger includes the 3rd heat exchanger being located between the second heat exchanger and cold-trap pipeline, flows through the 3rd of the second heat exchanger hot side Gas piping connect liquid trap, liquid trap separate access the 3rd heat exchanger hot side the 3rd liquid line and import the second pipeline from And the 4th liquid line of the 3rd heat exchanger cold side is flowed through, the 4th liquid line is provided with the 4th throttling arrangement, second pipe Road flows through cold-trap pipeline, the cold side of the 3rd heat exchanger, the cold side of the second heat exchanger, the cold side of First Heat Exchanger, regenerator successively Cold side after access compressor suction line, second pipeline between cold-trap pipeline and the 3rd heat exchanger provided with the 4th control Valve.
6. the ultralow temperature steam trapping pumping system of the pressure according to claim 5 that can quickly restore balance, it is characterised in that: The heat exchanger included cold heat exchanger, and the 3rd liquid line stream is separated after the hot side of cold heat exchanger imports cold-trap pipeline 5th liquid line and stream access the 6th liquid line of the 3rd heat exchanger cold side, the 5th liquid after cold heat exchanger cold side Body pipeline is provided with the 5th control valve and the 5th throttling arrangement, and the 6th liquid line is provided with the 6th throttling arrangement.
7. the ultralow temperature steam trapping pumping system of the pressure according to claim 6 that can quickly restore balance, it is characterised in that: 5th control valve includes the refrigeration manual isolation valve being sequentially arranged on the 5th liquid line and refrigeration magnetic valve.
8. the ultralow temperature steam trapping pumping system of the pressure according to claim 1 that can quickly restore balance, it is characterised in that: Water-cooled condenser is provided with 3rd pipeline between oil eliminator and regenerator.
9. the ultralow temperature steam trapping pumping system of the pressure according to claim 8 that can quickly restore balance, it is characterised in that: Device for drying and filtering is provided with 3rd pipeline between water-cooled condenser and regenerator.
10. the ultralow temperature steam trapping pumping system of the pressure according to claim 5 that can quickly restore balance, its feature exists In:First control valve is pressure release electromagnetic valve, and the 4th control valve is backflow defrosting manual isolation valve.
CN201621424121.XU 2016-12-22 2016-12-22 A kind of ultralow temperature steam trapping pumping system of the pressure that can quickly restore balance Active CN206430395U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766297A (en) * 2016-12-22 2017-05-31 广州协义自动化科技有限公司 A kind of ultralow temperature steam trapping pumping system of the pressure that can quickly restore balance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106766297A (en) * 2016-12-22 2017-05-31 广州协义自动化科技有限公司 A kind of ultralow temperature steam trapping pumping system of the pressure that can quickly restore balance
CN106766297B (en) * 2016-12-22 2019-08-16 广州协义自动化科技有限公司 A kind of ultralow temperature steam trapping pumping system for the pressure that can quickly restore balance

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