CN114234495A - Cooling system of heat exchanger of hydrogenation machine - Google Patents
Cooling system of heat exchanger of hydrogenation machine Download PDFInfo
- Publication number
- CN114234495A CN114234495A CN202111570630.9A CN202111570630A CN114234495A CN 114234495 A CN114234495 A CN 114234495A CN 202111570630 A CN202111570630 A CN 202111570630A CN 114234495 A CN114234495 A CN 114234495A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- water tank
- freezing water
- secondary refrigerant
- compressor
- 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
Links
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 27
- 238000001816 cooling Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000003507 refrigerant Substances 0.000 claims abstract description 48
- 238000007710 freezing Methods 0.000 claims abstract description 37
- 230000008014 freezing Effects 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920001821 foam rubber Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract description 3
- 239000001257 hydrogen Substances 0.000 description 12
- 229910052739 hydrogen Inorganic materials 0.000 description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 11
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/04—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being spirally coiled
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Compressor (AREA)
Abstract
The invention provides a cooling system of a heat exchanger of a hydrogenation machine, which can solve the problem that the conventional heat exchanger of the hydrogenation machine is usually a plate type heat exchanger, cooling medium adopts cooling water, and the cooling water is cooled by air, so that the cooling effect is poor. The hydrogenation device heat exchanger comprises a coil pipe freezing water tank, wherein the coil pipe is immersed in the freezing water tank, and an air inlet and an air outlet of the coil pipe extend out of the freezing water tank; the refrigerant circulating system comprises a compressor, a finned tube condenser, a drying filter, an expansion valve, a heat exchanger and a gas-liquid separator; and a water pump is connected between the secondary refrigerant outlet of the heat exchanger and the secondary refrigerant inlet of the freezing water tank, and the secondary refrigerant outlet of the freezing water tank is connected with the secondary refrigerant inlet of the heat exchanger.
Description
Technical Field
The invention relates to the field of hydrogenation equipment, in particular to a cooling system of a heat exchanger of a hydrogenation machine.
Background
With the enhancement of environmental awareness, new energy automobiles, particularly hydrogen energy automobiles, are gradually popular. The hydrogenation machine is a device for directly filling hydrogen into a hydrogen storage tank of a hydrogen energy vehicle, and high-pressure hydrogen is cooled in a hydrogenation machine heat exchanger in the hydrogenation machine before being filled into a vehicle gas storage tank, so that the temperature of the high-pressure hydrogen is reduced to the optimal design temperature of the vehicle hydrogen storage tank. The heat exchanger of the hydrogenation machine is usually a plate heat exchanger, cooling medium adopts cooling water, the cooling water is cooled by air, the temperature of the cooling water is higher than the ambient temperature, and the cooling effect is poor.
Disclosure of Invention
The invention provides a cooling system of a heat exchanger of a hydrogenation machine, which can improve the cooling effect of the heat exchanger of the hydrogenation machine and aims to solve the technical problems that the heat exchanger of the hydrogenation machine is usually a plate type heat exchanger, cooling water is adopted as a cooling medium, and the cooling water is cooled by air, so that the cooling effect is poor.
The technical scheme is as follows: the utility model provides a hydrogenation machine heat exchanger cooling system, its includes hydrogenation machine heat exchanger, its characterized in that: the hydrogenation machine heat exchanger comprises a coil and a freezing water tank, wherein the coil is immersed in the freezing water tank, and an air inlet and an air outlet of the coil extend out of the freezing water tank; the refrigerant circulating system comprises a compressor, a finned tube condenser, a drying filter, an expansion valve, a heat exchanger and a gas-liquid separator, wherein an air outlet of the compressor, refrigerant inlets of the finned tube condenser, the drying filter, the expansion valve and the heat exchanger are sequentially connected through pipelines, a refrigerant outlet of the heat exchanger, the gas-liquid separator and an air inlet of the compressor are sequentially connected through pipelines, and the finned tube condenser is cooled through an axial flow fan; and a water pump is connected between the secondary refrigerant outlet of the heat exchanger and the secondary refrigerant inlet of the freezing water tank, and the secondary refrigerant outlet of the freezing water tank is connected with the secondary refrigerant inlet of the heat exchanger.
It is further characterized in that:
the freezing water tank is a square water tank formed by welding stainless steel plates, and a closed-foam rubber and plastic heat-insulation plate is adhered to the outer sides of the stainless steel plates of the freezing water tank.
And a temperature sensor is arranged in the freezing water tank, and the temperature sensor and the compressor are respectively in electric control connection with the PLC.
And gate valves are respectively arranged on two sides of the water pump.
The invention has the beneficial effects that:
the heat exchanger of the hydrogenation machine comprises a coil pipe and a freezing water tank, wherein hydrogen flows in the coil pipe and exchanges heat with low-temperature secondary refrigerant in the freezing water tank to realize cooling of the hydrogen, the heated low-temperature secondary refrigerant exchanges heat with refrigerant in a refrigerant circulating system in the heat exchanger to enable the temperature of the low-temperature secondary refrigerant out of the heat exchanger to be far lower than the ambient temperature, and the low-temperature secondary refrigerant is sucked into the freezing water tank by a water pump.
Drawings
Fig. 1 is a schematic diagram of a cooling system of the present invention.
Reference numerals: 1-a coil pipe; 2-a freezing water tank; 3-a compressor; 4-finned tube condenser; 5-drying the filter; 6-an expansion valve; 7-a heat exchanger; 8-a gas-liquid separator; 9-an axial flow fan; 10-a water pump; 11-a gate valve; 12-closed foam rubber plastic heat insulation board; 13-a temperature sensor; 14-an exhaust pipe; 15-a liquid tube; 16-the trachea; 17-suction pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the cooling system of the heat exchanger of the hydrogenation machine of the invention further comprises a refrigerant circulating system, the heat exchanger of the hydrogenation machine comprises a coil 1 and a freezing water tank 2, the coil 1 is immersed in the freezing water tank 2, and an air inlet and an air outlet of the coil 1 extend out of the freezing water tank 2; the refrigerant circulating system comprises a compressor 3, a fin-tube condenser 4, a drying filter 5, an expansion valve 6, a heat exchanger 7 and a gas-liquid separator 8, wherein an air outlet of the compressor 3, a refrigerant inlet of the fin-tube condenser 4, a refrigerant inlet of the drying filter 5, the expansion valve 6 and the heat exchanger 7 are sequentially connected through a pipeline, a refrigerant outlet of the heat exchanger 7, the gas-liquid separator 8 and an air inlet of the compressor 3 are sequentially connected through a pipeline, and the fin-tube condenser 4 is cooled through an axial flow fan 9; a water pump 10 is connected between the secondary refrigerant outlet of the heat exchanger 7 and the secondary refrigerant inlet of the freezing water tank 2, gate valves 11 are respectively arranged on two sides of the water pump 10, when the water pump is damaged, the gate valves can be closed to overhaul the water pump, and the secondary refrigerant outlet of the freezing water tank 2 is connected with the secondary refrigerant inlet of the heat exchanger 7.
Referring to fig. 1, the freezing water tank 2 is a square water tank formed by welding stainless steel plates, and a closed-foam rubber-plastic heat-insulation plate 12 is adhered to the outer side of the stainless steel plate of the freezing water tank 2. By sticking the closed-bubble rubber-plastic heat-insulation board, the heat-insulation time of the low-temperature secondary refrigerant in the freezing water tank can be greatly prolonged, the compressor does not need to work all the time, and the energy consumption of a cooling system is saved.
Referring to fig. 1, a temperature sensor 13 is installed in the freezing water tank 2, and the temperature sensor 13 and the compressor 3 are electrically connected with the PLC controller respectively. Through setting up temperature sensor, temperature sensor can monitor the temperature of secondary refrigerant in the freezing water tank, when the secondary refrigerant temperature was too high, through PLC controller control compressor start-up, cools down the secondary refrigerant, and the compressor stop work after the temperature reached the requirement is kept warm to the secondary refrigerant by freezing water tank, guarantees cooling system's steady operation.
The cooling process of the heat exchanger cooling system of the hydrogenation machine of the present invention is described in detail below: the refrigerant circulating system adopts a vapor compression type for cooling, high-temperature and high-pressure refrigerant gas discharged by a compressor 3 enters a finned tube type condenser 4 through an exhaust pipe 14, the high-temperature and high-pressure refrigerant gas gives off heat in the finned tube type condenser 4 and is condensed into high-temperature and high-pressure liquid, the high-temperature and high-pressure liquid enters a drying filter 5 through a liquid pipe 15 and is filtered, the high-temperature and high-pressure liquid is throttled by an expansion valve 6 to be changed into a low-temperature and low-pressure gas-liquid two-phase mixture, then the low-temperature and low-pressure gas is introduced into a heat exchanger 7, the heat of the absorbed secondary refrigerant in the heat exchanger 7 is gasified into low-temperature and low-pressure gas, the low-temperature and low-pressure gas is sucked by the compressor 3 through an air pipe 16, a gas-liquid separator 8 and an air suction pipe 17, and is discharged through an exhaust pipe 14 after being compressed and enters the next cycle; the secondary refrigerant is released heat in the heat exchanger 7 and then changed into low-temperature secondary refrigerant, the low-temperature secondary refrigerant is sucked and pressurized by the water pump 10 and then sent into the freezing water tank 2 to exchange heat with hydrogen in the coil 1, the hydrogen is cooled, the cooled hydrogen is sent into the automobile gas storage tank, the warmed secondary refrigerant returns to the heat exchanger 7 to exchange heat with the refrigerant and then enters the next cycle.
The cooling system of the heat exchanger of the hydrogenation machine provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (3)
1. The utility model provides a hydrogenation machine heat exchanger cooling system, its includes hydrogenation machine heat exchanger, its characterized in that: the hydrogenation machine heat exchanger comprises a coil (1) and a freezing water tank (2), wherein the coil (1) is immersed in the freezing water tank (2), and an air inlet and an air outlet of the coil (1) extend out of the freezing water tank (2); the refrigerant circulating system comprises a compressor (3), a fin tube type condenser (4), a drying filter (5), an expansion valve (6), a heat exchanger (7) and a gas-liquid separator (8), wherein an air outlet of the compressor (3), the fin tube type condenser (4), the drying filter (5), the expansion valve (6) and a refrigerant inlet of the heat exchanger (7) are sequentially connected through a pipeline, a refrigerant outlet of the heat exchanger (7), the gas-liquid separator (8) and an air inlet of the compressor (3) are sequentially connected through a pipeline, and the fin tube type condenser (5) is cooled through an axial flow fan (9); a water pump (10) is connected between the secondary refrigerant outlet of the heat exchanger (7) and the secondary refrigerant inlet of the freezing water tank (2), and the secondary refrigerant outlet of the freezing water tank (2) is connected with the secondary refrigerant inlet of the heat exchanger (7).
2. The cooling system of a heat exchanger of a hydrogenation machine according to claim 1, characterized in that: the freezing water tank (2) is a square water tank formed by welding stainless steel plates, and a closed-foam rubber and plastic heat-insulation plate (12) is adhered to the outer side of the stainless steel plate of the freezing water tank (2).
3. A hydrogenation heat exchanger cooling system according to claim 1 or 2, characterized in that: install temperature sensor (13) in freezing water tank (2), temperature sensor (13) with compressor (3) respectively with PLC controller automatically controlled is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570630.9A CN114234495A (en) | 2021-12-21 | 2021-12-21 | Cooling system of heat exchanger of hydrogenation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570630.9A CN114234495A (en) | 2021-12-21 | 2021-12-21 | Cooling system of heat exchanger of hydrogenation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114234495A true CN114234495A (en) | 2022-03-25 |
Family
ID=80760200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111570630.9A Pending CN114234495A (en) | 2021-12-21 | 2021-12-21 | Cooling system of heat exchanger of hydrogenation machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114234495A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588742A (en) * | 2012-02-22 | 2012-07-18 | 上海舜华新能源系统有限公司 | Refrigeration cycle method and system for 70MPa hydrogen filling station |
| CN107110430A (en) * | 2014-10-31 | 2017-08-29 | 株式会社神户制钢所 | Hydrogenation stations |
| US20170254479A1 (en) * | 2016-03-02 | 2017-09-07 | Nel Hydrogen A/S | Cooling of a supply pipe in a hydrogen refueling system |
| CN209622465U (en) * | 2018-11-12 | 2019-11-12 | 成都华气厚普机电设备股份有限公司 | A kind of gas cooling device and with refrigerating function plus hydrogen machine |
-
2021
- 2021-12-21 CN CN202111570630.9A patent/CN114234495A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588742A (en) * | 2012-02-22 | 2012-07-18 | 上海舜华新能源系统有限公司 | Refrigeration cycle method and system for 70MPa hydrogen filling station |
| CN107110430A (en) * | 2014-10-31 | 2017-08-29 | 株式会社神户制钢所 | Hydrogenation stations |
| US20170254479A1 (en) * | 2016-03-02 | 2017-09-07 | Nel Hydrogen A/S | Cooling of a supply pipe in a hydrogen refueling system |
| CN209622465U (en) * | 2018-11-12 | 2019-11-12 | 成都华气厚普机电设备股份有限公司 | A kind of gas cooling device and with refrigerating function plus hydrogen machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220325 |
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| RJ01 | Rejection of invention patent application after publication |