CN108916647A - A kind of cryogenic liquid is converted into the carburetion system of high pressure gas - Google Patents

A kind of cryogenic liquid is converted into the carburetion system of high pressure gas Download PDF

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Publication number
CN108916647A
CN108916647A CN201810657368.3A CN201810657368A CN108916647A CN 108916647 A CN108916647 A CN 108916647A CN 201810657368 A CN201810657368 A CN 201810657368A CN 108916647 A CN108916647 A CN 108916647A
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CN
China
Prior art keywords
valve
cryogenic
discharge nozzle
cryogenic liquid
storage tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810657368.3A
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Chinese (zh)
Inventor
章轶明
范瑞欣
安丽丽
刘易
刘宇
徐兆龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou New-Asia Cryogenic Technology Co Ltd
Original Assignee
Hangzhou New-Asia Cryogenic Technology Co Ltd
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Publication date
Application filed by Hangzhou New-Asia Cryogenic Technology Co Ltd filed Critical Hangzhou New-Asia Cryogenic Technology Co Ltd
Priority to CN201810657368.3A priority Critical patent/CN108916647A/en
Publication of CN108916647A publication Critical patent/CN108916647A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/013—Single phase liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0107—Single phase
    • F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F17C2227/0142—Pumps with specified pump type, e.g. piston or impulsive type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0631—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses the carburetion systems that a kind of cryogenic liquid is converted into high pressure gas, are related to cryogenic liquid vaporizer equipment technical field, solve the problems, such as existing liquid vaporization equipment structure too complex.Technical solution is the carburetion system that a kind of cryogenic liquid is converted into high pressure gas, including storage tank, the feed pipe with inlet valve and the discharge nozzle with outlet valve are communicated on storage tank, cryogenic pump and vaporizer are also disposed on discharge nozzle, muffler is also communicated on cryogenic pump, muffler is connected to backwards to one end of cryogenic pump with storage tank, and return-air valve is provided on muffler, the outlet end of discharge nozzle is communicated with gas storage tanks, control valve is additionally provided on discharge nozzle, control valve is on the pipeline between vaporizer and gas storage tanks, transfer tube is additionally provided in gas storage tanks, feeding valve is provided on transfer tube.Structure of the invention is reasonable, and system structure concision and compact quickly can convert high pressure gas for cryogenic liquid.

Description

A kind of cryogenic liquid is converted into the carburetion system of high pressure gas
Technical field
The present invention relates to cryogenic liquid vaporizer equipment technical field, in particular to a kind of cryogenic liquid is converted into high pressure gas Carburetion system.
Background technique
With the continuous renewal and appearance of new energy and new process in recent years, the row of high pressure oxygen, high pressure nitrogen is needed Industry is also more and more, at present since the storage of gas and transport are extremely inconvenient, so all by after low-temperature gas liquefaction with liquid Form transported and stored, when need to use, then will be used after cryogenic liquid vaporizer.
A kind of but existing liquid vaporization equipment structure too complex, it is proposed that cryogenic liquid for designing concision and compact turn Turn to the carburetion system of high pressure gas.
Summary of the invention
The object of the present invention is to provide the carburetion systems that a kind of cryogenic liquid for designing concision and compact is converted into high pressure gas.
Above-mentioned technical purpose of the invention technical scheme is that：A kind of cryogenic liquid is converted into height It calms the anger the carburetion system of body, including storage tank, the feed pipe with inlet valve and going out with outlet valve is communicated on the storage tank Expects pipe is additionally provided with cryogenic pump and vaporizer on the discharge nozzle, and the outlet valve is located at the vaporizer and the storage tank Between pipeline on, the cryogenic pump is on the pipeline between the vaporizer and the outlet valve, on the cryogenic pump also It is communicated with muffler, the muffler is connected to backwards to one end of the cryogenic pump with the storage tank, and is set on the muffler It is equipped with return-air valve, the outlet end of the discharge nozzle is communicated with gas storage tanks, and control valve is additionally provided on the discharge nozzle, described Control valve is additionally provided with transmission on the pipeline between the vaporizer and the gas storage tanks in the gas storage tanks It manages, is provided with feeding valve on the transfer tube.
By using above scheme, gas keeps liquefying and being stored in storage tank being transported under cryogenic, low Geothermal liquid can be input into storage tank from feed pipe, need for the cryogenic liquid in storage tank to be converted to high pressure gas output When, it opens outlet valve and return-air valve, cryogenic liquid is discharged to cryogenic pump by discharge nozzle, then by the cryogenic pump in work to low Geothermal liquid is pressurized and turns at cryogenic liquid to vaporizer, and the liquid that some of them vaporize in cryogenic pump is by muffler defeated time In storage tank, vaporizer carries out heating vaporization to cryogenic liquid so that cryogenic liquid is converted into high pressure gas, open vaporizer and Control valve between gas storage tanks, then high pressure gas is filled in gas storage tanks etc. to be used, to complete cryogenic liquid It is converted into the conversion process of high-temperature gas, it is overall system design concision and compact, practical, it is made into skid, conveniently moving can be according to field Ground difference is installed and used.
The present invention is further arranged to：It is additionally provided with branch pipe on the muffler, branch pipe is located at the return-air valve and described On pipeline between cryogenic pump, and blow valve is provided on branch pipe.
By using above scheme, when the cryogenic liquid for exporting discharge nozzle using cryogenic pump is pressurized, need to beat The return-air valve on muffler is opened, because the temperature of cryogenic pump is higher than the temperature of cryogenic liquid, some cryogenic liquid meeting It is vaporized in cryogenic pump, the liquid vaporized in cryogenic pump then passes through in defeated time storage tank of muffler, but opens return-air valve Afterwards, it is connected to cryogenic pump by muffler in storage tank, to will lead to the air pressure etc. in the air pressure and cryogenic pump in storage tank Greatly, the air pressure and in storage tank is higher than the outer air pressure of tank, only leans on when the cryogenic liquid in storage tank is delivered at cryogenic pump at this time Cryogenic liquid is hydraulic in storage tank, so the conveying speed ratio that the cryogenic liquid in storage tank can be made to be delivered at cryogenic pump It is relatively slow, therefore branch pipe is provided in the return line between return-air valve and cryogenic pump, and the installation of relief valve on branch pipe, work as closing Return-air valve and when opening blow valve, the cryogenic liquid in discharge nozzle be delivered to the pressure at cryogenic pump be the hydraulic of cryogenic liquid plus Air pressure in upper storage tank subtracts the air pressure in cryogenic pump again, and the air pressure in cryogenic pump at this time is equal to the air pressure outside storage tank, and Air pressure in storage tank is greater than the air pressure outside storage tank again, so before being compared to, when the cryogenic liquid in storage tank exports Pressure become larger, so as to accelerate the conveying speed that cryogenic liquid in storage tank is delivered at cryogenic pump.
The present invention is further arranged to：The cryogenic pump is plunger pump, is additionally provided with buffer on the discharge nozzle, described Buffer is connected with pressure gauge coil pipe on the pipeline between the cryogenic pump and the vaporizer on the buffer, The pressure gauge coil pipe is connected with pressure gauge away from one end of the buffer.
By using above scheme, pressure gauge is set on discharge nozzle to measure the overpressure after cryogenic pump output, when Measure overpressure it is excessive when, can suitably slow down cryogenic pump；When measure overpressure it is too small when, then can suitably tune up Cryogenic pump；And cryogenic pump uses plunger pump, plunger pump belongs to positive displacement pump, and low energy consumption, small in size, safety is good, high reliablity, But plunger pump is at work, needs to open its dump valve and carries out drain, and it is very unstable so as to cause the fluid pressure of discharge, hold Easily quickly variation, pressure gauge are connected directly between the numerical value measured when measuring on discharge nozzle to the fluid pressure that cryogenic pump is got It is very unstable, it is buffered so being provided with buffer, buffer is set as a root canal road, and pipeline straight up, is then managed The upper end in road can gradually vaporize when cryogenic liquid is in pipeline far from discharge nozzle, then can form one section of gas in the upper end of pipeline Portion, the lower portion of pipeline are then liquid portion, the air pressure in gas portion and liquid portion it is hydraulic etc. big, and gas more holds than liquid It is easily compressed, so the gas in buffer can be to a certain degree when the cryogenic liquid pressure in discharge nozzle quickly changes On compressed to be buffered, air gauge is connected to by the way that air gauge coil pipe and buffer are interior at this time, so that pressure gauge is measured Pressure value it is more stable.
The present invention is further arranged to：It is additionally provided with branch pipe on the discharge nozzle, branch pipe is located at the cryogenic pump and described On pipeline between vaporizer, and vent valve is provided on branch pipe.
By using above scheme, when using cryogenic pump, need to carry out cryogenic pump pre-cooling operation, and in starting low temperature Pump is when being pre-chilled, if in cryogenic pump there are gas if can cryogenic liquid be difficultly flowed into cryogenic pump so that cryogenic pump It is difficult to start, to be provided with branch pipe on discharge nozzle, vent valve is provided on branch pipe, be pre-chilled in starting cryogenic pump Before, vent valve is first opened, then restarts cryogenic pump and is pre-chilled, the gas in cryogenic pump and in pipeline can be arranged by vent valve Pipeline out closes vent valve after some cryogenic liquids are discharged at vent valve, so that cryogenic pump is more easier to start.
The present invention is further arranged to：Check-valves is additionally provided on the discharge nozzle, the check-valves is located at the vaporization On pipeline between device and the control valve.
By using above scheme, check-valves is set on discharge nozzle, by check-valves setting vaporizer and control valve it Between pipeline on, cryogenic liquid by vaporizer heating vaporization form high pressure gas after, continue through discharge nozzle output, open control When valve output high-pressure gas processed, in order to avoid external pressure is higher than discharging intraductal atmospheric pressure and causes gas to flow backward and damages device, So check-valves is provided on discharge nozzle to prevent gas from flowing backward.
The present invention is further arranged to：The first branch pipe and the second branch pipe, the first branch pipe position are additionally provided on the discharge nozzle On pipeline between the check-valves and the control valve, the second branch pipe be located at the control valve and the gas storage tanks it Between pipeline on, and be all provided with safety valve on the first branch pipe and the second branch pipe.
By using above scheme, the first branch pipe is set on the pipeline between check-valves and control valve, in control valve and Second branch pipe is set on the pipeline between gas storage tanks, and safety valve is set on the one the first branch pipes and the second branch pipe, is pacified Full valve is relief valve, and when control valve is closed and air pressure is excessive in discharge nozzle, gas can pass through the safety on the first branch pipe Valve is discharged to carry out pressure release, and when control valve is opened and gas is full of in gas storage tanks or control valve is closed and gas storage When air pressure in tank is again excessively high, gas can be discharged by the safety valve on the second branch pipe to carry out pressure release, to avoid discharging Intraductal atmospheric pressure is excessive and leads to the tracheal rupture that discharges.
The present invention is further arranged to：Temperature transmitter is additionally provided on the discharge nozzle, the temperature transmitter is located at On pipeline between the vaporizer and the check-valves.
By using above scheme, temperature transmitter is set on discharge nozzle, by temperature transmitter setting in vaporizer and On pipeline between check-valves, temperature transmitter can measure the gas temperature of vaporizer output, when temperature transmitter measures When the gas temperature of vaporizer output is too low, temperature transmitter transmits a signal to control system to control cryogenic pump and reduce work speed Degree, or even directly control cryogenic pump and stop working, so that the outlet temperature of vaporizer is unlikely too low.
The present invention is further arranged to：The storage tank is double-layer structure, and insulating layer is provided in interlayer.
By using above scheme, double-layer structure is set by storage tank, it is preferential when storage tank is by external damage What is damaged is the outer layer shell of storage tank, can play the role of protecting storage tank inner shell, when the inner shell of storage tank When damage, the outer shell of storage tank can also play sealing function, so that storage tank is not easy to reveal, and in storage tank Interlayer in setting insulating layer to be kept the temperature to storage tank, to avoid the cryogenic liquid in storage tank by external temperature shadow It rings and vaporizes serious.
The present invention is further arranged to：The housing safety device for its internal pressure relief is additionally provided on the storage tank.
By using above scheme, due in storage tank being cryogenic liquid, when cryogenic liquid is heated, cryogenic liquid meeting It gradually vaporizes, so that the pressure in storage tank can be made to be gradually increased, is used for its internal pressure relief so being provided on storage tank Housing safety device, housing safety device is traditionally arranged to be relief valve, is arranged on storage tank one and is connected to inside it Pipeline, and relief valve is arranged on pipeline, when storing pressure inside the tank is excessive, the gas in storage tank can be discharged in relief valve To be depressurized to storage tank inside, to avoid storage tank internal pressure excessive and storage tank rupture is caused even to be exploded.
The present invention is further arranged to：The heat exchanger tube of the vaporizer is star finned tube.
By using above scheme, star finned tube is an intermediate round tube, then along its circumferential direction on the outer wall of round tube The structure of heat exchange fin is arranged in uniform intervals, and star finned tube manufacturing cost is low, easy to process, performance is stablized, so that vaporizer Heat exchanger tube possess good heat exchange efficiency.
In conclusion the invention has the advantages that：It is simple for structure it is compact, practical, be made into skid conveniently moving, energy Enough rapidly to convert high pressure gas for cryogenic liquid, high conversion efficiency has a safety feature.
Detailed description of the invention
Fig. 1 is the general structure schematic diagram of embodiment.
Appended drawing reference：1, storage tank；2, inlet valve；3, feed pipe；4, outlet valve；5, discharge nozzle；6, cryogenic pump；7, it vaporizes Device；8, muffler；9, return-air valve；10, gas storage tanks；11, control valve；12, transfer tube；13, feeding valve；14, blow valve； 15, buffer；16, pressure gauge coil pipe；17, pressure gauge；18, vent valve；19, check-valves；20, safety valve；21, temperature pick-up Device；22, insulating layer；23, housing safety device.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figure 1, a kind of cryogenic liquid is converted into the carburetion system of high pressure gas, including storage tank 1, after low-temperature liquefaction Gas be stored in storage tank 1 and transported, storage tank 1 is double-layer structure, and be provided in the interlayer of storage tank 1 with Quartz is the insulating layer 22 of thermal insulation material to keeping the temperature inside storage tank 1, to be additionally provided with shell insurance on storage tank 1 Device 23, housing safety device 23 are specifically configured to a relief valve, and a pipe being connected to inside it is arranged on storage tank 1 Then road relief valve is arranged on pipeline.Pressure increase in storage tank 1 is to form gas because cryogenic liquid gradually vaporizes Body so that the pressure in storage tank 1 is gradually increased, when the pressure in storage tank 1 reaches certain value, relief valve automatically open with The gas in storage tank 1 is discharged, the pressure in storage tank 1 is reduced with this, to avoid pressure in storage tank 1 excessive.
The top of storage tank 1 is provided with return-air interface, and the bottom of discharge nozzle 5 is provided with the feed pipe 3 for charging and uses In being provided with inlet valve 2 on the discharge nozzle 5 of discharging, feed pipe 3, inlet valve 2 is root valve, and outlet valve 4 is arranged on discharge nozzle 5, beats Cryogenic liquid can be just inputted into storage tank 1 by feed pipe 3 after opening inlet valve 2, it just can be by going out after opening outlet valve 4 Cryogenic liquid is discharged in expects pipe 5.
Cryogenic pump 6 is additionally provided on discharge nozzle 5, cryogenic pump 6 is low-temperature high-pressure plunger pump, the return-air interface on storage tank 1 It is connected to the return-air interface on cryogenic pump 6 by muffler 8, is provided with return-air valve 9 on muffler 8 to control muffler 8 On-off.When cryogenic pump 6 works, the temperature remains within the normal range before this for cryogenic pump 6, opens outlet valve 4, the cryogenic liquid in storage tank 1 at this time It is flow in cryogenic pump 6 by discharge nozzle 5, and when cryogenic liquid touches the cryogenic pump 6 of room temperature, can be heated and vaporize, vaporization Liquid then passes through muffler 8 again in defeated time storage tank 1.
Be provided with branch pipe on 8 part of muffler between return-air valve 9 and cryogenic pump 6, branch pipe directly and atmosphere, And blow valve 14 is provided on branch pipe.It is all the gas of low-temperature liquefaction in storage tank 1, it also can some liquid vapour Change, so the pressure in storage tank 1 is always held at the degree greater than atmospheric pressure.When opening return-air valve 9 and outlet valve 4, return Cryogenic pump 6 is connected to by tracheae 8 with storage tank 1, and air pressure etc. is big in the air pressure in storage tank 1 at this time and low-lift pump, low in discharge nozzle 5 The flowing conveying of geothermal liquid only in the storage tank 1 cryogenic liquid liquid level it is hydraulic.It is low when opening blow valve 14 and outlet valve 4 Temperature pumps 6 and atmosphere, and air pressure and atmospheric pressure in cryogenic pump 6 etc. are big, then the flowing of cryogenic liquid is conveyed by storage in discharge nozzle 5 Cryogenic liquid liquid level in batch can 1 is hydraulic to subtract atmospheric pressure plus air pressure in storage tank 1 again, compared to before, cryogenic liquid Flowing discharge pressure is increased, so that the cryogenic liquid in storage tank 1 can be output to faster at cryogenic pump 6.
According to the flow direction of cryogenic liquid, the three-way pipeline being arranged on discharge nozzle 5 after cryogenic pump 6, three-way pipeline Two ports pick out expects pipe 5, side wall interface is connected to a buffer 15, and buffer 15 is specifically configured to a root canal road, buffering The top of discharge nozzle 5 is arranged in device 15, and buffer 15 is vertically arranged, since the temperature remains within the normal range for buffer 15, in cryogenic liquid stream When entering in buffer 15, the heated vaporization of a part of cryogenic liquid, thus be gas part in the upper section of tubing of buffer 15, It is then liquid portion in the lower section of tubing of buffer 15, is connected with the pressure being connected to inside it at the top of buffer 15 Power dial plate pipe 16 is connected with a pressure gauge 17 on pressure gauge coil pipe 16.
Since cryogenic pump 6 is low-temperature high-pressure plunger pump, so cryogenic pump 6 is when getting cryogenic liquid, the pressure of cryogenic liquid Power constantly changes with the folding of 6 liquid valve of cryogenic pump, and the gas partial pressure in buffer 15 is original and cryogenic liquid Pressure is consistent, when the variation of the pressure rapid fluctuations of cryogenic liquid, the gas part in buffer 15 can be compressed or Expansion, so that the gas part in buffer 15 can play the role of buffering, so that the numerical value that pressure gauge 17 is measured is more flat Surely.
The pressure value of cryogenic liquid and regime values in discharge nozzle 5 is measured in pressure gauge 17 to work there are when deviation Personnel can correspondingly adjust outlet valve 4 and cryogenic pump 6 so that the cryogenic liquid pressure in discharge nozzle 5 is maintained at a certain range It is interior.Even a feedback control system can be directly set, by control system adjust automatically outlet valve 4 and cryogenic pump 6.
Discharging along flow direction of the cryogenic liquid in discharge nozzle 5, after the three-way pipeline of connection buffer 15 It is provided with a branch pipe on pipe 5, vent valve 18 is set on branch pipe.When, there are when gas, cryogenic pump 6 normally starts in cryogenic pump 6 It is difficult.When opening cryogenic pump 6 is pre-chilled, vent valve 18 is opened, the gas in cryogenic pump 6 and discharge nozzle 5 can be by putting Air valve 18 is discharged into atmosphere, so that cryogenic liquid can more easily be flow at cryogenic pump 6 by discharge nozzle 5, So that cryogenic pump 6 is more easier to start work.
Along the flow direction of cryogenic liquid, vaporizer is connected on the discharge nozzle 5 after the branch pipe of installation vent valve 18 7, vaporizer 7 is specifically configured to Kong Wenshi vaporizer 7, and the heat exchanger tube of vaporizer 7 is star finned tube, and star finned tube is Then multi-disc heat exchange fin, vaporizer 7 and air is arranged along its circumferential uniform intervals on the outer wall of pipeline in an intermediate root canal road Heat exchange is to heat the cryogenic liquid passed through, so that cryogenic liquid vaporizer is high pressure gas output.
A temperature transmitter 21 is provided on the discharge nozzle 5 of 7 outlet end of vaporizer, when temperature transmitter 21 measures vapour Change device 7 outlet temperature it is too low or excessively high when, temperature transmitter 21 sends corresponding signal to control system, control system again from Dynamic control cryogenic pump 6 and outlet valve 4, so that the outlet temperature of vaporizer 7 is unlikely to too high or too low.
Along the conveying direction of high pressure gas, check-valves 19 is provided on the discharge nozzle 5 after temperature transmitter 21 to prevent High pressure gas flows backward and damages device.It is provided with branch pipe on discharge nozzle 5 after check-valves 19, is provided with safety valve on branch pipe 20, safety valve 20 is relief valve, and when air pressure is excessively high in discharge nozzle 5, safety valve 20 is vented automatically to reduce inside discharge nozzle 5 Air pressure.The control of high pressure gas conveying in control discharge nozzle 5 is provided on discharge nozzle 5 after the branch pipe of installation safety valve 20 Valve 11.
Along the conveying direction of high pressure gas, it is additionally provided with a branch pipe on the discharge nozzle 5 after control valve 11, is propping up Safety valve 20 is provided on pipe, safety valve 20 is relief valve, and subsequent discharge nozzle 5 is connected to a gas storage tanks 10, and gas is deposited Storage tank 10 carries transfer tube 12, and feeding valve 13 is provided on transfer tube 12.
System can be made skid, so that system is moved easily, system can also be according to the difference in place with different sides Formula is installed.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (10)

1. the carburetion system that a kind of cryogenic liquid is converted into high pressure gas, it is characterised in that：Including storage tank（1）, the storing Tank（1）On be communicated with band inlet valve（2）Feed pipe（3）With band outlet valve（4）Discharge nozzle（5）, the discharge nozzle（5）It is upper to go back It is provided with cryogenic pump（6）And vaporizer（7）, the outlet valve（4）Positioned at the vaporizer（7）With the storage tank（1）Between Pipeline on, the cryogenic pump（6）Positioned at the vaporizer（7）With the outlet valve（4）Between pipeline on, the cryogenic pump （6）On be also communicated with muffler（8）, the muffler（8）Backwards to the cryogenic pump（6）One end and the storage tank（1）Even It is logical, and the muffler（8）On be provided with return-air valve（9）, the discharge nozzle（5）Outlet end be communicated with gas storage tanks （10）, the discharge nozzle（5）On be additionally provided with control valve（11）, the control valve（11）Positioned at the vaporizer（7）With it is described Gas storage tanks（10）Between pipeline on, the gas storage tanks（10）On be additionally provided with transfer tube（12）, the transfer tube （12）On be provided with feeding valve（13）.
2. the carburetion system that a kind of cryogenic liquid according to claim 1 is converted into high pressure gas, it is characterised in that：It is described Muffler（8）On be additionally provided with branch pipe, branch pipe is located at the return-air valve（9）With the cryogenic pump（6）Between pipeline on, and prop up Blow valve is provided on pipe（14）.
3. the carburetion system that a kind of cryogenic liquid according to claim 1 is converted into high pressure gas, it is characterised in that：It is described Cryogenic pump（6）For plunger pump, the discharge nozzle（5）On be additionally provided with buffer（15）, the buffer（15）Positioned at described low Temperature pump（6）With the vaporizer（7）Between pipeline on, and the buffer（15）On be connected with pressure gauge coil pipe（16）, institute State pressure gauge coil pipe（16）Away from the buffer（15）One end be connected with pressure gauge（17）.
4. the carburetion system that a kind of cryogenic liquid according to claim 1 is converted into high pressure gas, it is characterised in that：It is described Discharge nozzle（5）On be additionally provided with branch pipe, branch pipe is located at the cryogenic pump（6）With the vaporizer（7）Between pipeline on, and prop up Vent valve is provided on pipe（18）.
5. the carburetion system that a kind of cryogenic liquid according to claim 1 is converted into high pressure gas, it is characterised in that：It is described Discharge nozzle（5）On be additionally provided with check-valves（19）, the check-valves（19）Positioned at the vaporizer（7）With the control valve（11） Between pipeline on.
6. the carburetion system that a kind of cryogenic liquid according to claim 5 is converted into high pressure gas, it is characterised in that：It is described Discharge nozzle（5）On be additionally provided with the first branch pipe and the second branch pipe, the first branch pipe is located at the check-valves（19）With the control valve （11）Between pipeline on, the second branch pipe is located at the control valve（11）With the gas storage tanks（10）Between pipeline on, And first is all provided with safety valve on branch pipe and the second branch pipe（20）.
7. the carburetion system that a kind of cryogenic liquid according to claim 5 is converted into high pressure gas, it is characterised in that：It is described Discharge nozzle（5）On be additionally provided with temperature transmitter（21）, the temperature transmitter（21）Positioned at the vaporizer（7）Stop with described Return valve（19）Between pipeline on.
8. the carburetion system that a kind of cryogenic liquid according to claim 1 is converted into high pressure gas, it is characterised in that：It is described Storage tank（1）For double-layer structure, and insulating layer is provided in interlayer（22）.
9. the carburetion system that a kind of cryogenic liquid according to claim 1 is converted into high pressure gas, it is characterised in that：It is described Storage tank（1）On be additionally provided with housing safety device for its internal pressure relief（23）.
10. the carburetion system that a kind of cryogenic liquid according to claim 1 is converted into high pressure gas, it is characterised in that：Institute State vaporizer（7）Heat exchanger tube be star finned tube.
CN201810657368.3A 2018-06-25 2018-06-25 A kind of cryogenic liquid is converted into the carburetion system of high pressure gas Pending CN108916647A (en)

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CN111086784A (en) * 2019-12-18 2020-05-01 浙江信汇新材料股份有限公司 Automatic pressure supplementing and relieving process system for low-pressure tank of normal-pressure tank
CN112763160A (en) * 2020-12-18 2021-05-07 湖南省特种设备检验检测研究院 Low-temperature tank car air tightness test device and method
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CN114198638A (en) * 2021-12-25 2022-03-18 王宝贵 Filling equipment for low-temperature biological tank and using method
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CN115405854A (en) * 2022-08-25 2022-11-29 深圳中广核工程设计有限公司 Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline
CN116293422A (en) * 2023-03-03 2023-06-23 查特深冷工程系统(常州)有限公司 Cryogenic liquid high-pressure gasification system with instant start function and control method

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CN110220118A (en) * 2019-05-22 2019-09-10 安瑞科(廊坊)能源装备集成有限公司 Liquefy compressed natural gas high-pressure plunger pump pipeline system
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CN114110416A (en) * 2021-10-29 2022-03-01 济南华信流体控制有限公司 Automatic pressurization system for low-temperature liquefied carbon dioxide
CN114198638A (en) * 2021-12-25 2022-03-18 王宝贵 Filling equipment for low-temperature biological tank and using method
CN114777012A (en) * 2022-04-22 2022-07-22 铜陵秦风气体有限公司 Oxygen safety recovery system based on liquid oxygen storage
CN115405854A (en) * 2022-08-25 2022-11-29 深圳中广核工程设计有限公司 Pressure control system and method for liquid nitrogen storage tank and nitrogen distribution pipeline
CN115405854B (en) * 2022-08-25 2024-05-10 深圳中广核工程设计有限公司 System and method for controlling pressure of liquid nitrogen storage tank and nitrogen distribution pipeline
CN116293422A (en) * 2023-03-03 2023-06-23 查特深冷工程系统(常州)有限公司 Cryogenic liquid high-pressure gasification system with instant start function and control method

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Application publication date: 20181130