CN116085672A - Safe pressure-reducing electromagnetic combination valve for high-pressure hydrogen storage bottle and use method thereof - Google Patents
Safe pressure-reducing electromagnetic combination valve for high-pressure hydrogen storage bottle and use method thereof Download PDFInfo
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- CN116085672A CN116085672A CN202310303440.3A CN202310303440A CN116085672A CN 116085672 A CN116085672 A CN 116085672A CN 202310303440 A CN202310303440 A CN 202310303440A CN 116085672 A CN116085672 A CN 116085672A
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 59
- 239000001257 hydrogen Substances 0.000 title claims abstract description 59
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 47
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 102100029211 E3 ubiquitin-protein ligase TTC3 Human genes 0.000 claims abstract description 8
- 101000633723 Homo sapiens E3 ubiquitin-protein ligase TTC3 Proteins 0.000 claims abstract description 8
- 238000012806 monitoring device Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 5
- 230000006837 decompression Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
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- 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
-
- 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
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
-
- 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
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- 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
- F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a safe pressure-reducing electromagnetic combined valve for a high-pressure hydrogen storage bottle and a use method thereof, wherein the combined valve comprises a first main valve body and a second main valve body, the first main valve body and the second main valve body are in threaded connection, a gas filling and discharging device and a safe discharging device are arranged on the first main valve body, the gas filling and discharging device and the safe discharging device are respectively communicated with a flow passage in the second main valve body through a flow passage in the first main valve body, the second main valve body is used for connecting a hydrogen bottle, the gas filling and discharging device comprises an electromagnetic driving valve, a one-way valve and a manual stop valve, the one-way valve is connected with the first main valve body through a filling and discharging two-purpose port arranged on the first main valve body, the safe discharging device comprises a manual pressure-reducing valve, a directional hot pressure-reducing device TPRD, an adjustable pressure-reducing valve and a first discharging port, and the adjustable pressure-reducing valve is used for automatically adjusting the pressure in the combined valve. The invention adopts various pressure relief devices to adjust the stable inflation and deflation pressure, and can detect and limit the pressure in multiple directions, thereby improving the safety of the hydrogen cylinder in use and transportation.
Description
Technical Field
The invention belongs to the technical field of pressure reducing electromagnetic valves, and particularly relates to a safe pressure reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle and a use method thereof.
Background
The hydrogen energy is used as a clean energy source with high heat value, high energy density, wide sources and environmental protection, and is an important way for solving the problems of current energy shortage, global warming and the like and realizing the targets of carbon peak and the like. The development of the hydrogen fuel cell vehicle enters a fast traffic lane, the demand for the hydrogen storage cylinder is increasingly vigorous, the combined valve is used as an important part of the hydrogen storage cylinder, the market scale is gradually enlarged, and the prospect is quite wide. In China, the pressure of the existing hydrogen storage cylinder is 35MPa or below, and in the starting stage of development of the hydrogen storage cylinder combination valve, no combination valve with high integrated level and high safety and reliability is mature in technology, and the existing combination valve has the problems of low integrated level, low safety and reliability and the like; most of the gas filling and discharging can be realized by a plurality of independent and independent valves and instruments, and the defects of large space occupation ratio, complex operation, low safety and reliability and the like exist, so that the hydrogen transportation quantity is limited. In foreign countries, companies such as OMB, GFI and the like in developed countries such as the United states, germany and the like have successfully developed and put into use relatively mature hydrogen storage cylinder combination valves, the functions of the products are basically the same, the functions of opening and closing a gas path, limiting current, protecting overcurrent and the like are realized, the mode of controlling the opening and the closing of the gas path is realized in a pneumatic driving mode and an electromagnetic driving mode, but the products lack reliable safety monitoring devices, and the use and the transportation safety of the hydrogen storage cylinders cannot be effectively guaranteed. Considering the characteristics of hydrogen, such as inflammability and explosiveness, the hydrogen is extremely dangerous and lacks reliable safety guarantee in the using and transporting processes. Once the conditions of gas cylinder explosion, gas leakage and the like occur, the personal safety and social property safety of users are seriously threatened, so that it is extremely important that the combined valve is provided with a safe and reliable gas charging and discharging device, a gas discharging device and a safety monitoring device.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a safe pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle and a method of using the same.
In order to achieve the above purpose, the following technical scheme is provided:
the utility model provides a safe decompression electromagnetic combination valve for high pressure hydrogen storage bottle, including first main valve body and second main valve body, threaded connection between first main valve body and the second main valve body, be equipped with gas on the first main valve body and fill and put device and safe bleeder, gas fills and put device and safe bleeder and be linked together through the runner in the internal runner of first main valve and the internal runner of second main valve respectively, the second main valve body is used for connecting high pressure hydrogen bottle, gas fills and puts the device and include electromagnetic drive valve, check valve and manual stop valve, above-mentioned gas fills and puts the device and all is connected on first main valve body through threaded connection, can dismantle in order to maintain and change, the check valve is connected with first main valve body through seting up the dual-purpose mouth that fills on first main valve body, electromagnetic drive valve needs external power supply, and control terminal control, the start and stop of gas way is controlled, safe bleeder includes manual pressure release valve, directional heat pressure release device TPRD, adjustable pressure release valve is used for automatic adjustment combination valve internal pressure, temperature sensing glass ball is contained to directional heat pressure release device TPinternal pressure, when pressure is fixed, pressure will be exceeded by the pressure glass ball will be opened to the gas release mouth, the gas release mouth will be followed.
Further, the adjustable pressure reducing valve comprises a valve body, a valve cover, a piston rod, a guide valve body, a valve rod, a spring and a pressure set value adjusting mechanism, one end of the valve body is connected with the first main valve body, the other end of the valve body is in threaded connection with the valve cover, the valve rod is arranged in the valve body, the guide valve body is arranged between the valve body and the valve cover, one end of the valve rod is in contact with the guide valve body, the end part of the guide valve body, which is in contact with the valve rod, is provided with a relief channel, the relief channel is communicated with a relief port on the valve cover, the other end of the valve rod is sleeved with the spring, the other end of the spring is in contact with the pressure set value adjusting mechanism, the spring is compressed and relaxed through the pressure set value adjusting mechanism, thus the pressure required by the valve rod to push the spring is changed, the adjustment of the relief pressure set value is realized, when the pressure of the spring acting on the valve rod is equal to or greater than the pressure of the air pressure acting on the valve rod, when the air pressure of the air is overlarge, part of the air pushes the piston rod, the pressure acting on the pressure of the valve rod is greater than the pressure of the spring, the head of the valve rod is pushed, the relief channel is opened, the air is decompressed through the adjustable pressure reducing valve until the air pressure is restored in the bottle, the pressure set value, the spring and the valve is closed.
Further, the pressure set point adjustment mechanism includes safe lock nut, gasket and adjusting spring pressure knob, and adjusting spring pressure knob's one end is spacing panel, and spacing panel locates in the valve gap, and adjusting spring pressure knob's the other end passes tip, gasket and the safe lock nut of valve gap in proper order to with the tip threaded connection of valve gap, through rotatory adjusting spring pressure knob, change spacing panel's position, thereby compress or loosen the spring, in order to realize the regulation of relief pressure set point, concrete operational mode is: firstly, unscrewing the safety lock nut, then rotating the adjusting spring pressure knob inwards or outwards, adjusting the spring pressure to a set value, and finally screwing the safety lock nut.
Further, an electromagnetic flowmeter is further arranged between the one-way valve and the charging and discharging dual-purpose port, the electromagnetic flowmeter is connected with the one-way valve and is externally connected with an air charging pipeline when in air charging, the one-way valve is detached when in air discharging, the externally connected air discharging pipeline is directly arranged on the electromagnetic flowmeter, the phenomenon that the temperature in the hydrogen cylinder rises when the gas is injected into the hydrogen cylinder is considered, the larger the flow speed is, the larger the temperature rise is, in order to prevent the risks of leakage, explosion and the like caused by the temperature rise, and the electromagnetic flowmeter monitors the flow speed of the gas in the flow channel in real time.
Further, the combined valve further comprises a safety monitoring device, the safety monitoring device comprises a temperature sensor, a pressure sensor and a corresponding signal output interface, the temperature sensor and the pressure sensor are arranged on the second main valve body, the corresponding signal output interfaces are arranged on the first main valve body, temperature rise occurs during gas injection, the temperature sensor detects the temperature and feeds back the temperature to a control terminal, if the temperature in a bottle exceeds a dangerous value, the control terminal automatically adjusts the flow rate and the flow rate of gas filling, the temperature sensor and the pressure sensor adopt a negative thermistor sensor, the pressure sensor adopts a piezoelectric sensor, and the temperature sensor and the pressure sensor can be detached from the main valve body so as to be convenient to maintain and replace; the sensor signal output interface device is fixed on the second main valve body by using a screw, and whether the sensor signal output interface device is needed or not can be selected according to actual conditions; the temperature and pressure signals can be output to the control terminal through corresponding signal output interfaces. The control terminal is combined with the temperature and pressure conditions in the hydrogen storage cylinder and an optimization algorithm to judge the operation condition of the hydrogen storage cylinder in real time; if dangerous situations such as overhigh temperature, overlarge pressure or gas leakage occur in the hydrogen storage cylinder during use or transportation, the control terminal timely warns users according to data fed back by the temperature sensor and the pressure sensor, and potential safety hazards are eliminated before major safety accidents occur.
Further, an O-shaped baffle ring and an O-shaped ring are arranged at the connecting end part of the second main valve body and the first main valve body.
Further, the pressure of the high-pressure hydrogen cylinder is 70MPa or more.
The use method of the safe pressure-reducing electromagnetic combination valve for the high-pressure hydrogen storage bottle comprises the following steps:
1) When the inflation is carried out, the one-way valve is connected with the electromagnetic flowmeter through threads and is arranged on the inflation and discharge dual-purpose port, the one-way valve is externally connected with the inflation pipeline and the hydrogen storage equipment, after the electromagnetic drive valve is electrified, the inflation valve and the inflation gas path are opened, gas enters the hydrogen cylinder through the flow channels in the first main valve body and the second main valve body, the electromagnetic flowmeter detects the flow rate of injected gas, the temperature sensor and the pressure sensor measure the temperature and the pressure in the inflation process, so that the flow rate and the flow rate of the gas are regulated, the pressure relief pressure is regulated in advance by the adjustable pressure relief valve, and when the pressure is overlarge, the adjustable pressure relief valve is used for releasing and reducing the pressure during the inflation;
2) After the inflation is finished, the electromagnetic drive valve closes the air passage, and if the electromagnetic drive valve fails, the air passage is cut off through the manual stop valve, so that the inflation safety is ensured;
3) When the air is discharged, the one-way valve is dismounted, the external air discharge pipeline is directly arranged on the electromagnetic flowmeter, after the electromagnetic drive valve is electrified, the air discharge valve and the air discharge air path are opened, air is discharged through the flow channel, hydrogen enters the fuel cell to generate electricity, when the air discharge pressure is overlarge, part of air is discharged through the adjustable pressure reducing valve, the electromagnetic flowmeter monitors the air flow rate and flow rate in real time and feeds back the air flow rate to the control terminal, the electromagnetic drive valve is used for closing the air path after the air discharge is finished, if the electromagnetic drive valve fails, the air path is cut off through the manual stop valve, the manual pressure relief valve, the directional heat pressure relief device TPRD and the first air discharge opening are used for pressure relief in the transportation process of the hydrogen cylinder, if the temperature and the pressure of the air in the cylinder are abnormal, the air pressure is overlarge, the temperature-sensitive glass ball in the directional heat pressure relief device TPRD is compressed, the first air discharge opening is opened to release, and the air is released, and if the directional heat pressure relief device TPRD fails, the manual pressure relief valve is used for pressure relief.
Compared with the prior art, the invention has the beneficial effects that:
the invention sets the gas filling and discharging device and the safety pressure relief device, the pressure relief devices regulate the stable filling and discharging pressure, the electromagnetic flowmeter detects the gas flow rate, the temperature rise of the gas in the hydrogen cylinder is prevented, the safety monitoring device monitors the temperature and the pressure in the hydrogen cylinder in real time, judges the operation condition of the hydrogen cylinder in real time, and feeds back in time.
Drawings
FIG. 1 is a schematic view of the left-hand side perspective of the present invention;
FIG. 2 is a right side perspective view of the present invention;
FIG. 3 is a schematic view of a separated perspective structure of a first main valve body and a second main valve body;
FIG. 4 is a top view of the first main valve body of the present invention;
FIG. 5 is a schematic perspective view of an adjustable pressure relief valve;
FIG. 6 is a cross-sectional view of an adjustable pressure relief valve;
FIG. 7 is a schematic view of a cross-sectional gas flow path in the direction A-A;
FIG. 8 is a schematic view of a cross-sectional gas flow path in the B-B direction;
fig. 9 is a schematic diagram of the control logic of the present invention.
In the figure: 1. a first main valve body; 11. a charging and discharging dual-purpose port; 12. an electromagnetic flowmeter; 13. a signal output interface; 2. a second main valve body; 21. an O-shaped baffle ring; 22. an O-ring; 23. a temperature sensor; 24. a pressure sensor; 3. an electromagnetically driven valve; 4. a one-way valve; 5. a manual shut-off valve; 6. a manual pressure release valve; 7. a directional thermal pressure relief device TPRD; 8. an adjustable pressure relief valve; 81. a valve body; 82. a valve cover; 83. a piston rod; 84. a valve guide body; 841. a bleed passage; 85. a valve stem; 86. a spring; 87. a pressure set point adjustment mechanism; 871. a safety lock nut; 872. a gasket; 873. adjusting a spring pressure knob; 9. a first bleed port; 101. an inflation valve; 102. a bleed valve; 103. a fuel cell; 104. a hydrogen storage device; 105. and controlling the terminal.
Detailed Description
The invention will be further described with reference to the drawings, but the scope of the invention is not limited thereto.
As shown in fig. 1 to 4, a safety pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle comprises a first main valve body 1 and a second main valve body 2, wherein the lower end of the first main valve body 1 is connected with the second main valve body 2 through threads, the second main valve body 2 is connected with a hydrogen bottle, an O-shaped baffle ring 21 and an O-shaped ring 22 are arranged at the end part of the second main valve body 2 to realize sealing, a first discharge port 9, an interface of a directional hot pressure relief device TPRD7, an interface of a manual stop valve 5, an interface of a manual pressure relief valve 6, a charging and discharging dual-purpose port 11, an interface of an adjustable pressure-reducing valve 8 and an interface of an electromagnetic drive valve 3 are respectively communicated with a flow passage in the second main valve body 2 through a flow passage in the first main valve body 1, except for the first discharge port 9, other interfaces are correspondingly connected with the directional hot pressure relief device TPRD7, the manual stop valve 5, the manual pressure relief valve 6, the electromagnetic flowmeter 12, the adjustable pressure relief valve 8 and the electromagnetic drive valve 3 respectively, the second main valve body 2 is provided with a temperature sensor 23 and a pressure sensor 24, the temperature and pressure signals are output to the control terminal 105 through the corresponding signal output interfaces 13, the control terminal 105 combines the temperature and pressure conditions in the bottle and an optimization algorithm, the condition of the hydrogen bottle is judged in real time, if the conditions such as overhigh temperature, overlarge pressure or gas leakage in the bottle occur in the using process or transportation of the hydrogen bottle, the control terminal 105 gives an alarm to a user in time according to the data fed back by the temperature sensor 23 and the pressure sensor 24, and the filter is further arranged at the air inlet of the second main valve body 2.
As shown in fig. 5 and 6, the adjustable pressure reducing valve 8 comprises a valve body 81, a valve cover 82, a piston rod 83, a pilot valve body 84, a valve rod 85, a spring 86 and a pressure setting value adjusting mechanism 87, one end of the valve body 81 is connected with the first main valve body 1, the other end is in threaded connection with the valve cover 82, the piston rod 83 is arranged in the valve body 81, the pilot valve body 84 is arranged between the valve body 81 and the valve cover 82, the valve rod 85 is positioned in the valve cover 82, one end of the valve rod 85 is contacted with the pilot valve body 84, the end, contacted with the valve rod 85, of the pilot valve body 84 is provided with a relief passage 841, the relief passage 841 is communicated with a relief port on the valve cover 82, the other end of the valve rod 85 is sleeved with the spring 86, the other end of the spring 86 is contacted with the pressure setting value adjusting mechanism 87, the pressure setting value adjusting mechanism 87 comprises a safety locking nut 871, a gasket 872 and an adjusting spring pressure knob 873, one end of the adjusting spring pressure knob 873 is a limit panel, the limit panel is arranged in the valve cover 82, the other end of the adjusting spring pressure knob 873 sequentially passes through the end of the valve cover 82, the gasket 871 and the safety locking nut 871, and is in threaded connection with the end of the valve cover 82, the limit panel is in threaded connection, the end of the adjusting spring pressure knob is loosely, the end of the adjusting the valve body, the pressure knob 86 is further, the other end of the limit panel is provided with the pressure adjusting valve body, the pressure is provided with the pressure, and the pressure sealing ring is replaced by the pressure, and the pressure is sealed by the sealing ring and the pressure is by the sealing ring and the valve is sealed by the valve and the pressure is by the sealing and the valve is by the pressure and the valve is. When the pressure of the spring 86 acting on the valve rod 85 is equal to or greater than the pressure of the air pressure acting on the valve rod 85, the adjustable pressure reducing valve 8 does not act, when the air pressure of the inflation air is too great, the air pressure pushes the piston rod 83, the pressure of the air pressure acting on the valve rod 85 is greater than the pressure of the spring 86, the relief passage 841 is opened for pressure relief until the air pressure in the hydrogen cylinder returns to a set value, the spring 86 and the valve rod 85 are reset, the relief passage 841 is closed, if the set pressure value of the adjustable pressure reducing valve 8 is to be adjusted, the safety lock nut 871 is firstly unscrewed, then the spring pressure knob 873 is rotated inwards or outwards, the pressure of the spring 86 is adjusted to the set value, and finally the safety lock nut 871 is screwed.
As shown in fig. 7 and 8, all the flow passages in the first main valve body 1 communicate with the main flow passages in the second main valve body 2.
As shown in fig. 9, a method for using a safety pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle includes the steps of:
1) When in inflation, the one-way valve 4 is connected with the electromagnetic flowmeter 12 through threads and is arranged on the inflation and deflation dual-purpose port 11, the one-way valve 4 is externally connected with the inflation pipeline and the hydrogen storage device 104, after the electromagnetic drive valve 3 is electrified, the inflation valve 101 and the inflation gas path are opened, gas enters the hydrogen cylinder through the flow channels in the first main valve body 1 and the second main valve body 2, the electromagnetic flowmeter 12 detects the flow rate of the injected gas, the temperature sensor 23 and the pressure sensor 24 measure the temperature and the pressure in the inflation process, so that the flow rate and the flow rate of the gas are regulated, the pressure relief pressure is regulated in advance by the adjustable pressure relief valve 8, and when the pressure is overlarge in inflation, the adjustable pressure relief valve 8 is used for releasing and reducing the pressure;
2) After the inflation is finished, the electromagnetic drive valve 3 closes the air passage, and if the electromagnetic drive valve 3 fails, the air passage is cut off through the manual stop valve 5, so that the inflation safety is ensured;
3) When in deflation, the one-way valve 4 is detached, an external deflation pipeline is directly arranged on the electromagnetic flowmeter 12, after the electromagnetic drive valve 3 is electrified, the deflation valve 102 and the deflation gas path are opened, gas is discharged through the flow passage, and hydrogen enters the fuel cell 103 for power generation; when the pressure of the air release is too high, part of air is released through the adjustable pressure reducing valve 8, the electromagnetic flowmeter 12 monitors the air flow speed and the air flow in real time and feeds back to the control terminal 105, after the air release is finished, the electromagnetic drive valve 3 closes the air passage, and if the electromagnetic drive valve 3 fails, the air passage is cut off through the manual stop valve 5;
4) During transportation or use, the temperature sensor 23 and the pressure sensor 24 monitor the temperature and pressure conditions in the hydrogen cylinder in real time, the temperature and pressure conditions are output by the corresponding signal output interfaces 13 and output to the control terminal 105 through external lines, when the gas pressure is too high, the temperature-sensing glass balls in the directional hot pressure relief device TPRD7 are crushed, the relief channel 841 is opened, gas is discharged from the first relief port 9, and if the directional hot pressure relief device TPRD7 fails, the valve rod 85 of the manual pressure relief valve 6 can be manually unscrewed, and pressure is relieved through the manual pressure relief valve 6.
Claims (8)
1. The utility model provides a safe decompression electromagnetic combination valve for high-pressure hydrogen storage bottle, including first main valve body (1) and second main valve body (2), threaded connection between first main valve body (1) and second main valve body (2), be equipped with gas on first main valve body (1) and fill and put device and safe bleeder, gas fills the runner intercommunication in putting device and the safe bleeder in putting the runner in first main valve body (1) and second main valve body (2) respectively, second main valve body (2) are used for connecting high-pressure hydrogen bottle, gas fills putting device and includes electromagnetic drive valve (3), check valve (4) and manual stop valve (5), check valve (4) are connected with first main valve body (1) through seting up filling dual-purpose mouth (11) on first main valve body (1), safe bleeder includes manual relief valve (6), directional heat TPRD (7), but relief valve (8) and first relief mouth (9), adjustable relief valve (8) are used for automatically regulated combination valve pressure's size.
2. The safety pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle according to claim 1, characterized in that the adjustable pressure-reducing valve (8) comprises a valve body (81), a valve cover (82), a piston rod (83), a pilot valve body (84), a valve rod (85), a spring (86) and a pressure set value adjusting mechanism (87), one end of the valve body (81) is connected with the first main valve body (1), the other end of the valve body is connected with the valve cover (82) in a threaded manner, the piston rod (83) is arranged in the valve body (81), the pilot valve body (84) is arranged between the valve body (81) and the valve cover (82), the valve rod (85) is arranged in the valve cover (82), one end of the valve rod (85) is contacted with the pilot valve body (84), the end of the pilot valve body (84) is provided with a release channel (841), the release channel (841) is communicated with a release port on the valve cover (82), the other end of the valve rod (85) is sleeved with the spring (86), the other end of the spring (86) is contacted with the pressure set value adjusting mechanism (87), the pressure set value adjusting mechanism compresses and relaxes the spring (86) through the pressure set value adjusting mechanism (87), the valve (86) so that the pressure set value of the valve (86) is pushed by the valve rod (85) is changed, the pressure set value is required to be released, and the pressure set.
3. The safety pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle as claimed in claim 2, characterized in that the pressure setting value adjusting mechanism (87) comprises a safety lock nut (871), a gasket (872) and an adjusting spring pressure knob (873), one end of the adjusting spring pressure knob (873) is a limit panel, the limit panel is arranged in the valve cover (82), the other end of the adjusting spring pressure knob (873) sequentially penetrates through the end of the valve cover (82), the gasket (872) and the safety lock nut (871) and is in threaded connection with the end of the valve cover (82), and the position of the limit panel is changed by rotating the adjusting spring pressure knob (873), so that the spring (86) is compressed or relaxed to realize the adjustment of the relief pressure setting value.
4. The safe pressure-reducing electromagnetic combination valve for the high-pressure hydrogen storage bottle according to claim 1, which is characterized in that an electromagnetic flowmeter (12) is further arranged between the one-way valve (4) and the charging and discharging dual-purpose port (11).
5. A safety pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle as claimed in claim 3, characterized by further comprising a safety monitoring device, wherein the safety monitoring device comprises a temperature sensor (23), a pressure sensor (24) and a corresponding signal output interface (13), the temperature sensor (23) and the pressure sensor (24) are arranged on the second main valve body (2), and the corresponding signal output interface (13) is arranged on the first main valve body (1).
6. A safety pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle according to claim 1, characterized in that the end of the second main valve body (2) connected to the first main valve body (1) is provided with an O-ring (21) and an O-ring (22) for sealing.
7. The safety pressure-reducing electromagnetic combination valve for a high-pressure hydrogen storage bottle according to claim 3, wherein the pressure of the high-pressure hydrogen bottle is 70MPa or more.
8. A method of using the safety pressure reducing electromagnetic combination valve for a high pressure hydrogen storage bottle as claimed in claim 7, comprising the steps of:
1) when in inflation, the one-way valve (4) is connected with the electromagnetic flowmeter (12) through threads and is arranged on the inflation and deflation dual-purpose port (11), the one-way valve (4) is externally connected with the inflation pipeline and the hydrogen storage equipment (104), after the electromagnetic drive valve (3) is electrified, the inflation valve (101) and the inflation gas path are opened, gas enters the hydrogen cylinder through the flow channels in the first main valve body (1) and the second main valve body (2), the electromagnetic flowmeter (12) detects the flow rate of the injected gas, the temperature sensor (23) and the pressure sensor (24) measure the temperature and the pressure in the inflation process, so that the flow rate and the flow rate of the gas are regulated, the pressure relief pressure is regulated in advance by the adjustable pressure relief valve (8), and when in inflation, the adjustable pressure relief valve (8) is used for releasing and reducing the pressure when the pressure is overlarge;
2) After the inflation is finished, the electromagnetic drive valve (3) closes the air passage, and if the electromagnetic drive valve (3) fails, the air passage is cut off through the manual stop valve (5), so that the inflation safety is ensured;
3) When the air is discharged, the one-way valve (4) is dismounted, the external air discharging pipeline is directly arranged on the electromagnetic flowmeter (12), after the electromagnetic drive valve (3) is electrified, the air discharging valve (102) and the air discharging air path are opened, air is discharged through the flow channel, hydrogen enters the fuel cell (103) to generate electricity, when the air discharging pressure is overlarge, partial air is discharged through the adjustable pressure reducing valve (8), the electromagnetic flowmeter (12) monitors the air flow rate and the air flow rate in real time and feeds back to the control terminal (105), the air discharging is completed, the electromagnetic drive valve (3) closes the air path, if the electromagnetic drive valve (3) fails, the air path is cut off through the manual stop valve (5), and the manual pressure releasing valve (6), the directional thermal pressure releasing device TPRD (7) and the first pressure releasing port (9) are used for pressure release in the transportation process of the hydrogen cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310303440.3A CN116085672A (en) | 2023-03-27 | 2023-03-27 | Safe pressure-reducing electromagnetic combination valve for high-pressure hydrogen storage bottle and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310303440.3A CN116085672A (en) | 2023-03-27 | 2023-03-27 | Safe pressure-reducing electromagnetic combination valve for high-pressure hydrogen storage bottle and use method thereof |
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| CN116085672A true CN116085672A (en) | 2023-05-09 |
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| CN202310303440.3A Pending CN116085672A (en) | 2023-03-27 | 2023-03-27 | Safe pressure-reducing electromagnetic combination valve for high-pressure hydrogen storage bottle and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117039051A (en) * | 2023-10-09 | 2023-11-10 | 北京永氢储能科技有限责任公司 | Marine solid hydrogen storage fuel cell power system and hydrogen charging and discharging method |
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Application publication date: 20230509 |