CN213331484U - Hydrogen diaphragm compressor skid-mounted device with precooling - Google Patents
Hydrogen diaphragm compressor skid-mounted device with precooling Download PDFInfo
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- CN213331484U CN213331484U CN202021825409.4U CN202021825409U CN213331484U CN 213331484 U CN213331484 U CN 213331484U CN 202021825409 U CN202021825409 U CN 202021825409U CN 213331484 U CN213331484 U CN 213331484U
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Abstract
The utility model relates to a technical field of compressor sledge especially relates to a hydrogen diaphragm compressor skid-mounted device with precooling, including support, the inlet line of hydrogen diaphragm compressor, hydrogen diaphragm compressor of setting in the support, the outlet pipeline of hydrogen diaphragm compressor, the bubbling circulation pipeline and the compressor unloading pipeline of hydrogen diaphragm compressor, the inlet line of hydrogen diaphragm compressor on install the precooling heat exchanger. The utility model discloses install the precooling heat exchanger on hydrogen diaphragm compressor's inlet pipeline, the precooling heat exchanger can effectively reduce hydrogen diaphragm compressor's entry hydrogen's temperature, and then can effectively reduce hydrogen diaphragm compressor's exhaust temperature to can effectively prolong hydrogen diaphragm compressor's discharge valve, the life of O type circle and diaphragm, and can effectively reduce hydrogen diaphragm compressor's entry pressure low to 5MPa, improve the utilization efficiency of hydrogen in the tube bank car.
Description
Technical Field
The utility model relates to a technical field of compressor sledge especially relates to a hydrogen diaphragm compressor skid-mounted device with precooling.
Background
At present, most domestic hydrogenation station supercharging devices adopt diaphragm compressors, and the diaphragm compressors isolate hydraulic oil from compressed hydrogen through diaphragms, so that the pollution of the hydraulic oil to the hydrogen is avoided, and the fuel cell is prevented from being damaged; in most of the existing hydrogenation stations, hydrogen is transported by a tube bundle vehicle, and is pressurized by a diaphragm compressor after passing through a gas discharge column, the hydrogen is pressurized to 45MPa and stored in a high-pressure hydrogen storage tank in the hydrogenation station, and the hydrogen in the hydrogen storage tank is charged and hydrogenated for a hydrogen fuel cell vehicle through a hydrogenation machine; because the characteristic calorific value of hydrogen is higher, a large amount of heat can be released in the process of hydrogen compression, if the heat is too high, the service life of an O-shaped ring of an exhaust valve of a diaphragm type compressor is reduced, the service life of a diaphragm of the diaphragm type compressor is reduced, the exhaust temperature can be caused to be too high, the temperature in a hydrogen storage tank exceeds the safe use temperature range of a hydrogen storage container, potential safety hazards exist, the pressure is 20MPa when a normal tube bundle vehicle is transported to a hydrogenation station, in the normal operation process of the hydrogenation station, the pressure of the tube bundle vehicle is gradually reduced, the inlet pressure of the compressor is also gradually reduced, the exhaust pressure of the compressor is also 45MPa, in view of the working condition, the compression ratio of the diaphragm type compressor is gradually increased, the exhaust temperature of the hydrogen compressor is further increased, if the inlet hydrogen of the compressor is not cooled, and the pressure of the tube bundle vehicle reaches 7-8MPa, meanwhile, the conditions of large hydrogen allowance, low utilization rate, increased transportation cost and the like of the tube bundle vehicle are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems and providing a pre-cooling heat exchanger installed on an inlet pipeline of a hydrogen diaphragm compressor, wherein the pre-cooling heat exchanger can effectively reduce the temperature of inlet hydrogen of the hydrogen diaphragm compressor, so that the exhaust temperature of the hydrogen diaphragm compressor can be effectively reduced, the service lives of an exhaust valve, an O-shaped ring and a diaphragm of the hydrogen diaphragm compressor can be effectively prolonged, the inlet pressure of the hydrogen diaphragm compressor can be effectively reduced to 5MPa, and the utilization efficiency of hydrogen in a tube bundle vehicle is improved; in addition, the density of the unit volume of the hydrogen is improved due to the reduction of the temperature of the hydrogen at the inlet, and the average displacement of the hydrogen diaphragm compressor is further improved.
In order to solve the above problem, the utility model discloses the technical scheme who takes is:
a hydrogen diaphragm compressor skid-mounted device with pre-cooling function comprises a support, a hydrogen diaphragm compressor arranged in the support, an inlet pipeline of the hydrogen diaphragm compressor, an outlet pipeline of the hydrogen diaphragm compressor, a bubbling circulation pipeline of the hydrogen diaphragm compressor and a compressor emptying unloading pipeline, wherein a pre-cooling heat exchanger is arranged on the inlet pipeline of the hydrogen diaphragm compressor, an outlet of the pre-cooling heat exchanger is communicated with an inlet of the hydrogen diaphragm compressor through a pipeline, an inlet temperature sensor is arranged on the pipeline between the outlet of the pre-cooling heat exchanger and the inlet of the hydrogen diaphragm compressor, an outlet of the pre-cooling heat exchanger is also communicated with a water chilling unit through a pipeline, the water chilling unit is provided with a first cooling liquid outlet, a second cooling liquid outlet, a first cooling liquid inlet and a second cooling liquid inlet, and the first cooling liquid outlet of the water chilling unit is communicated with the outlet of the pre-cooling heat exchanger through a pipeline, and a first cooling liquid inlet of the water chilling unit is communicated with an inlet of the precooling heat exchanger through a pipeline, and cooling liquid flows from an outlet of the precooling heat exchanger to an inlet of the precooling heat exchanger in the precooling heat exchanger.
The precooling heat exchanger comprises a shell and a plurality of groups of coils which are arranged in parallel in the shell.
The coil is made of SS316L hydrogen-involved material, and the coil is in the shape of an Archimedes spiral line.
The hydrogen diaphragm compressor is characterized in that an outlet pipeline of the hydrogen diaphragm compressor is provided with a post-cooling heat exchanger, an inlet of the post-cooling heat exchanger is communicated with an outlet of the hydrogen diaphragm compressor through a pipeline, an inlet of the post-cooling heat exchanger is communicated with a cooling liquid inlet of a water chilling unit through a pipeline, an outlet of the post-cooling heat exchanger is communicated with a cooling liquid outlet of the water chilling unit through a pipeline, the cooling liquid enters the post-cooling heat exchanger through an outlet of the post-cooling heat exchanger after being cooled by the water chilling unit, the cooling liquid flows to the inlet of the post-cooling heat exchanger from an outlet of the post-cooling heat exchanger in the post-cooling heat exchanger, an outlet temperature sensor of the post-cooling heat exchanger is arranged at the outlet of the post-cooling heat exchanger, and an outlet temperature sensor is connected to the.
The inlet pipeline of the hydrogen diaphragm compressor comprises an inlet pneumatic control cut-off valve, an inlet pressure sensor and an inlet filter which are sequentially communicated, and the inlet filter is communicated with the inlet of the precooling heat exchanger through a pipeline.
The bubbling circulation pipeline of the hydrogen diaphragm compressor comprises a circulation pipeline and a circulation pneumatic control cut-off valve arranged on the circulation pipeline, one end of the circulation pipeline is communicated with a pipeline between the inlet pneumatic control cut-off valve and the inlet pressure sensor, and the other end of the circulation pipeline is communicated with an outlet of the post-cooling heat exchanger.
The outlet pipeline of the hydrogen diaphragm compressor comprises an exhaust pneumatic control cut-off valve, an exhaust check valve and an exhaust pressure sensor which are sequentially connected, and a circulating pressure sensor is arranged between the exhaust pneumatic control cut-off valve and the circulating pipeline through a pipeline.
The compressor emptying unloading pipeline comprises an emptying pneumatic control cut-off valve arranged on a pipeline between the circulating pressure sensor and the exhaust pneumatic control cut-off valve.
The utility model discloses an gain effect is:
the utility model discloses install the precooling heat exchanger on the inlet pipeline of hydrogen diaphragm compressor, the precooling heat exchanger can effectively reduce the temperature of the entry hydrogen of hydrogen diaphragm compressor, and then can effectively reduce the exhaust temperature of hydrogen diaphragm compressor, thereby can effectively prolong the life of discharge valve, O type circle and diaphragm of hydrogen diaphragm compressor, and can effectively reduce the entry pressure of hydrogen diaphragm compressor and hang down to 5MPa, improve the utilization efficiency of hydrogen in the tube bank car; in addition, the density of the hydrogen in unit volume is improved due to the reduction of the temperature of the hydrogen at the inlet, so that the average displacement of the hydrogen diaphragm compressor is improved; and meanwhile, the precooling heat exchanger is small and exquisite in structure, high in heat exchange efficiency, convenient to arrange, capable of saving the internal space of a skid-mounted compressor and convenient to maintain and operate the internal compressor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a working principle diagram of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1, the numbering: 1 is an inlet pneumatic control cut-off valve, 2 is an inlet pressure sensor, 3 is an inlet filter, 4 is a precooling heat exchanger, 5 is an inlet temperature sensor, 6 is a hydrogen diaphragm compressor, 7 is an outlet temperature sensor, 8 is a rear cooling heat exchanger, 9 is a heat exchanger outlet temperature sensor, 10 is a circulating pressure sensor, 11 is an emptying pneumatic control cut-off valve, 12 is an exhaust pneumatic control cut-off valve, 13 is an exhaust check valve, 14 is an exhaust pressure sensor, 15 is a water chilling unit, 16 is a circulating pneumatic control cut-off valve and 17 is a support.
The utility model relates to a hydrogen diaphragm compressor skid-mounted device with precooling, including support 17, hydrogen diaphragm compressor 6, the inlet pipeline of hydrogen diaphragm compressor, the outlet pipeline of hydrogen diaphragm compressor, the bubbling circulation pipeline of hydrogen diaphragm compressor and the compressor unloading pipeline of setting in the support, the inlet pipeline of hydrogen diaphragm compressor install precooling heat exchanger 4, the export of precooling heat exchanger 4 pass through the pipeline and the entry of hydrogen diaphragm compressor 6, the pipeline between the export of precooling heat exchanger 4 and the entry of hydrogen diaphragm compressor 6 on install entry temperature sensor 5, the export of precooling heat exchanger 4 still communicate through the pipeline has cooling water set 15, cooling water set 15 have coolant outlet one, coolant outlet two, coolant import one and coolant inlet two, the first cooling liquid outlet of the water chilling unit 15 is communicated with the outlet of the pre-cooling heat exchanger 4 through a pipeline, the first cooling liquid inlet of the water chilling unit 15 is communicated with the inlet of the pre-cooling heat exchanger 4 through a pipeline, and cooling liquid flows from the outlet of the pre-cooling heat exchanger 4 to the inlet of the pre-cooling heat exchanger 4 in the pre-cooling heat exchanger 4.
The precooling heat exchanger 4 comprises a shell and a plurality of groups of coils arranged in parallel in the shell.
The coil is made of SS316L hydrogen-involved material, and the coil is in the shape of an Archimedes spiral line.
An outlet pipeline of the hydrogen diaphragm compressor is provided with a post-cooling heat exchanger 8, an inlet of the post-cooling heat exchanger 8 is communicated with an outlet of the hydrogen diaphragm compressor 6 through a pipeline, the inlet of the post-cooling heat exchanger 8 is communicated with a cooling liquid inlet two-phase of a water chilling unit 15 through a pipeline, the outlet of the post-cooling heat exchanger 8 is communicated with the cooling liquid outlet of the water chilling unit 15 through a pipeline, the cooling liquid enters the post-cooling heat exchanger 8 through the outlet of the post-cooling heat exchanger 15 after being cooled by the water chilling unit 15, the cooling liquid flows to the inlet of the post-cooling heat exchanger 8 from the outlet of the post-cooling heat exchanger 8 in the post-cooling heat exchanger 8, and a heat exchanger outlet temperature sensor 9 is installed at the outlet of the post-cooling heat exchanger 8, and an outlet temperature sensor 7 is connected to a pipeline between the inlet of the post-cooling heat exchanger 8 and the outlet of the hydrogen diaphragm compressor 6.
The inlet pipeline of the hydrogen diaphragm compressor comprises an inlet pneumatic control cut-off valve 1, an inlet pressure sensor 2 and an inlet filter 3 which are sequentially communicated, wherein the inlet filter 3 is communicated with an inlet of the precooling heat exchanger 4 through a pipeline.
The bubbling circulation pipeline of the hydrogen diaphragm compressor comprises a circulation pipeline and a circulation pneumatic control cut-off valve 16 arranged on the circulation pipeline, one end of the circulation pipeline is communicated with a pipeline between the inlet pneumatic control cut-off valve 1 and the inlet pressure sensor 2, and the other end of the circulation pipeline is communicated with an outlet of the post-cooling heat exchanger 8.
The outlet pipeline of the hydrogen diaphragm compressor comprises an exhaust pneumatic control cut-off valve 12, an exhaust check valve 13 and an exhaust pressure sensor 14 which are sequentially connected, and a circulating pressure sensor 10 is arranged between the exhaust pneumatic control cut-off valve 12 and a circulating pipeline through a pipeline.
The compressor emptying unloading pipeline comprises an emptying pneumatic control cut-off valve 11 arranged on a pipeline between a circulating pressure sensor 10 and an exhaust pneumatic control cut-off valve 12.
The working principle is as follows: this device still designs and has PLC control system again, PLC control system and compressor inlet pipeline, the compressor exhaust pipeline, compressor tympanic bulla circulation pipeline and compressor unloading uninstallation pipeline are all connected, PLC control system is through controlling compressor inlet pipeline, the compressor exhaust pipeline, the closing and opening of each valve of compressor tympanic bulla circulation pipeline and compressor unloading pipeline, thereby realize each functional system of hydrogen diaphragm compressor 6, PLC control system can gather the admission pressure of hydrogen diaphragm compressor 6, the temperature, the exhaust pressure, the temperature, information such as cooling water flow, the compression of self-control hydrogen diaphragm compressor 6, the tympanic bulla, the uninstallation flow, PLC control system is connected with the communication of hydrogenation station control system in addition, receive the alarm information of whole station system and realize that the compressor promptly stops controlling.
After the hydrogen diaphragm compressor 6 is started, the light-load starting stage is started. At this stage, the inlet pneumatic control cut-off valve 1 and the exhaust pneumatic control cut-off valve 12 are in a closed state, the circulating pneumatic control cut-off valve 16 is opened, the emptying pneumatic control cut-off valve 11 is closed, and the light-load starting running time is generally 2-5 minutes.
After the light-load starting operation of the compressor is finished, the PLC control system sends out instructions to enable the circulation pneumatic control cut-off valve 16 and the emptying pneumatic control cut-off valve 11 to be closed, the inlet pneumatic control cut-off valve 1 and the exhaust pneumatic control cut-off valve 12 to be opened, and the process gas flows through the hydrogen diaphragm compressor 6 to start pressurization. When the discharge pressure sensor 14 at the outlet reaches the set value, the hydrogen diaphragm compressor 6 stops operating. The starting conditions of the hydrogen diaphragm compressor 6 were: before the hydrogen diaphragm compressor 6 is started, the water chilling unit 15 is started, and the flow pressure of cooling liquid is normal; according to the set value (the set value is 1 MPa-1.5 MPa) of the circulating pressure sensor 10, when the set value is lower than the set value, the air-release air-control cut-off valve 11 is closed, and the function of the valve is to prevent the pressure drop of the pipeline system from generating vacuum when the hydrogen diaphragm compressor 6 is stopped or lightly loaded; when the hydrogen diaphragm compressor 6 is started in a light load mode for a period of time (generally set to 30S), detecting the hydraulic oil pressure of a crankcase of the hydrogen diaphragm compressor 6, and when the pressure does not reach a required value, stopping starting operation of the hydrogen diaphragm compressor 6; the purpose of the light-load starting operation of the hydrogen diaphragm compressor 6 for a period of time is to ensure that the hydraulic system of the hydrogen diaphragm compressor 6 is fully bubbled and stabilized, the lubrication system is fully lubricated, the motor is started completely, and the like before the process gas load is introduced.
If the hydrogen diaphragm compressor 6 is started for the first time and is parked for a long time (more than one week) or lubricating oil and the like are replaced, the bubbling operation needs to be manually carried out, and the main flow is as follows: manually turning until oil flow appears in an oil sight glass, and then inching the hydrogen diaphragm compressor 6 to ensure that the hydrogen diaphragm compressor 6 turns correctly (rotates clockwise facing to the flywheel side of the compressor); inching the hydrogen diaphragm compressor 6 to start the button for 3-5 times, wherein the time length of each inching is 3-5 seconds, and when the button is inching for 1-2 times, the oil pressure of lubricating oil is slowly built; pressing the inching button of the hydrogen diaphragm compressor 6 for a long time until clear oil flow passes through the oil sight glass, observing for 2-5 minutes to ensure that the oil flow in the oil sight glass has no bubbles, and slowly closing the circulating air control cut-off valve 16; long-time pressing the inching button of the hydrogen diaphragm compressor 6 until the oil pressure reaches the pressure set by the pressure regulating valve, and clear oil flow appears in the oil vision mirror again; if the oil flow is normal and there are no bubbles, the jog button of the hydrogen diaphragm compressor 6 is released and the bubbling ends. The bubbling operation requires attention to: the bubbling operation must ensure a certain pressure of 0.1 MPa-0.15 MPa in the system, forbid zero pressure bubbling, not too much lubricating oil in the crankcase, otherwise, bubble can be generated, cavitation can be caused, and the hydrogen diaphragm compressor 6 can be damaged.
The compressor continues to operate in the run mode until the safety interlock, local or remote, etc. signal requires the hydrogen diaphragm compressor 6 to be shut down and the system will be shut down. At this time, the air-release pneumatic control cut-off valve 11 is opened, the inlet pneumatic control cut-off valve 1 and the exhaust pneumatic control cut-off valve 12 are closed, and the circulating pneumatic control cut-off valve 16 is still in a closed state. The system starts to unload the high pressure gas and when the recycle pressure sensor 10 confirms that the outlet pressure of the hydrogen diaphragm compressor 6 is sufficiently reduced, the recycle gas control shut-off valve 16 is opened. In this process, the pulley of the hydrogen membrane compressor 6 continues to rotate for a while due to inertia. When the system pressure is lower than 15bar, the air-release control cut-off valve 11 is closed to ensure that a certain positive pressure exists in the system. After the hydrogen diaphragm compressor 6 is closed, the water chiller 15 should be closed after a delay of 15 minutes.
During cooling, the water chilling unit 15 firstly cools the cooling liquid, then the cooling liquid enters the pre-cooling heat exchanger 4 through the first cooling liquid outlet and the outlet of the pre-cooling heat exchanger 4, the cooling liquid flows in a coil pipe which is arranged in the pre-cooling heat exchanger 4 in parallel, the flow direction mainly flows from the outlet of the pre-cooling heat exchanger 4 to the inlet of the pre-cooling heat exchanger 4, during the flow process, the hydrogen in the pre-cooling heat exchanger 4 is cooled, the cooled hydrogen enters the hydrogen diaphragm compressor 6, the temperature of the hydrogen at the inlet of the hydrogen diaphragm compressor 6 is effectively reduced, the cooling liquid absorbs the heat of the hydrogen in the pre-cooling heat exchanger 4, the temperature is increased, then the cooling liquid enters the water chilling unit 15 through the inlet of the pre-cooling heat exchanger and the first cooling liquid inlet, the cooling liquid is cooled by the water chilling liquid, and the exhaust temperature of the, therefore, the service life of an O-shaped ring and a diaphragm of the exhaust valve of the hydrogen diaphragm compressor 6 can be effectively prolonged, the inlet pressure of the hydrogen diaphragm compressor 6 can be effectively reduced to 5MPa, and the utilization efficiency of hydrogen in the tube bundle vehicle is improved; in addition, the density of the hydrogen per unit volume is increased due to the reduction of the temperature of the inlet hydrogen, and the average displacement of the hydrogen diaphragm compressor 6 is further increased. Meanwhile, the temperature of hydrogen at the outlet of the hydrogen diaphragm compressor 6 is higher, and the temperature of the hydrogen at the outlet of the gas diaphragm compressor 6 needs to be reduced, at this time, the water chilling unit 15 firstly reduces the temperature of the cooling liquid, then the cooling liquid enters the rear cooling heat exchanger 8 through the outlet of the cooling liquid outlet II and the outlet of the rear cooling heat exchanger, the cooling liquid flows in the rear cooling heat exchanger 8, the flow direction mainly flows from the outlet of the rear cooling heat exchanger 8 to the inlet of the rear cooling heat exchanger 8, the hydrogen in the rear cooling heat exchanger 8 is reduced in the flow process, the cooled hydrogen enters the hydrogen diaphragm compressor 6, the temperature of the hydrogen at the inlet of the hydrogen diaphragm compressor 6 is effectively reduced, the cooling liquid absorbs the heat of the hydrogen in the rear cooling heat exchanger 8, the temperature is increased, and then the cooling liquid enters the water chilling unit 15 through the inlet of the precooling heat exchanger, the cooling liquid is cooled by the water chilling unit 15, so that the forced shutdown of the compressor caused by overhigh exhaust temperature is effectively avoided, and the conditions of large hydrogen allowance, low utilization rate, increased transportation cost and the like of the tube bundle vehicle are caused.
The utility model discloses install precooling heat exchanger 4 on the inlet pipeline of hydrogen diaphragm compressor, precooling heat exchanger 4 can effectively reduce the temperature of the entry hydrogen of hydrogen diaphragm compressor 6, and then can effectively reduce the exhaust temperature of hydrogen diaphragm compressor 6 to can effectively prolong the life of discharge valve, O type circle and diaphragm of hydrogen diaphragm compressor 6, and can effectively reduce the entry pressure of hydrogen diaphragm compressor 6 and low to 5MPa, improve the utilization efficiency of hydrogen in the tube bank car; in addition, the density of the hydrogen in unit volume is improved due to the reduction of the temperature of the hydrogen at the inlet, so that the average displacement of the hydrogen diaphragm compressor is improved; and meanwhile, the precooling heat exchanger is small and exquisite in structure, high in heat exchange efficiency, convenient to arrange, capable of saving the internal space of a skid-mounted compressor and convenient to maintain and operate the internal compressor.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a hydrogen diaphragm compressor skid-mounted device with precooling, includes the support, sets up the inlet line of hydrogen diaphragm compressor, hydrogen diaphragm compressor in the support, the outlet pipeline of hydrogen diaphragm compressor, the tympanic bulla circulation pipeline and the compressor unloading pipeline of hydrogen diaphragm compressor, its characterized in that: the inlet pipeline of hydrogen diaphragm compressor install the precooling heat exchanger, the export of precooling heat exchanger pass through the entry of pipeline and hydrogen diaphragm compressor, the export of precooling heat exchanger and the entry of hydrogen diaphragm compressor on install entry temperature sensor, the export of precooling heat exchanger still communicate through the pipeline and have the cooling water set, the cooling water set have coolant liquid export one, coolant liquid export two, coolant liquid import one and coolant liquid import two, the coolant liquid export one of cooling water set be linked together through the export of pipeline with the precooling heat exchanger, the coolant liquid import one of cooling water set be linked together through the import of pipeline with the precooling heat exchanger, the coolant liquid is by the export flow direction entry to precooling heat exchanger of precooling heat exchanger in the precooling heat exchanger.
2. The skid-mounted device of the hydrogen membrane compressor with pre-cooling function as claimed in claim 1, wherein: the precooling heat exchanger comprises a shell and a plurality of groups of coils which are arranged in parallel in the shell.
3. The skid-mounted device of the hydrogen membrane compressor with pre-cooling function as claimed in claim 2, wherein: the coil is made of SS316L hydrogen-involved material, and the coil is in the shape of an Archimedes spiral line.
4. The skid-mounted device of the hydrogen membrane compressor with pre-cooling function as claimed in claim 1, wherein: the hydrogen diaphragm compressor is characterized in that an outlet pipeline of the hydrogen diaphragm compressor is provided with a post-cooling heat exchanger, an inlet of the post-cooling heat exchanger is communicated with an outlet of the hydrogen diaphragm compressor through a pipeline, an inlet of the post-cooling heat exchanger is communicated with a cooling liquid inlet of a water chilling unit through a pipeline, an outlet of the post-cooling heat exchanger is communicated with a cooling liquid outlet of the water chilling unit through a pipeline, the cooling liquid enters the post-cooling heat exchanger through an outlet of the post-cooling heat exchanger after being cooled by the water chilling unit, the cooling liquid flows to the inlet of the post-cooling heat exchanger from an outlet of the post-cooling heat exchanger in the post-cooling heat exchanger, an outlet temperature sensor of the post-cooling heat exchanger is arranged at the outlet of the post-cooling heat exchanger, and an outlet temperature sensor is connected to the.
5. The skid-mounted device of the hydrogen membrane compressor with pre-cooling function as claimed in claim 1, wherein: the inlet pipeline of the hydrogen diaphragm compressor comprises an inlet pneumatic control cut-off valve, an inlet pressure sensor and an inlet filter which are sequentially communicated, and the inlet filter is communicated with the inlet of the precooling heat exchanger through a pipeline.
6. The skid-mounted device of the hydrogen membrane compressor with pre-cooling function as claimed in claim 5, wherein: the bubbling circulation pipeline of the hydrogen diaphragm compressor comprises a circulation pipeline and a circulation pneumatic control cut-off valve arranged on the circulation pipeline, wherein one end of the circulation pipeline is communicated with a pipeline between the inlet pneumatic control cut-off valve and the inlet pressure sensor, and the other end of the circulation pipeline is communicated with an outlet of the post-cooling heat exchanger.
7. The skid-mounted device of the hydrogen membrane compressor with pre-cooling function as claimed in claim 6, wherein: the outlet pipeline of the hydrogen diaphragm compressor comprises an exhaust pneumatic control cut-off valve, an exhaust check valve and an exhaust pressure sensor which are sequentially connected, and a circulating pressure sensor is arranged between the exhaust pneumatic control cut-off valve and the circulating pipeline through a pipeline.
8. The skid-mounted device of the hydrogen membrane compressor with pre-cooling function as claimed in claim 7, wherein: the compressor emptying unloading pipeline comprises an emptying pneumatic control cut-off valve arranged on a pipeline between the circulating pressure sensor and the exhaust pneumatic control cut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021825409.4U CN213331484U (en) | 2021-04-23 | 2021-04-23 | Hydrogen diaphragm compressor skid-mounted device with precooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021825409.4U CN213331484U (en) | 2021-04-23 | 2021-04-23 | Hydrogen diaphragm compressor skid-mounted device with precooling |
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| CN213331484U true CN213331484U (en) | 2021-06-01 |
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| CN202021825409.4U Active CN213331484U (en) | 2021-04-23 | 2021-04-23 | Hydrogen diaphragm compressor skid-mounted device with precooling |
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| CN (1) | CN213331484U (en) |
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- 2021-04-23 CN CN202021825409.4U patent/CN213331484U/en active Active
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