CN212717164U - Oil-free compressor system for hydrogen fuel cell - Google Patents
Oil-free compressor system for hydrogen fuel cell Download PDFInfo
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- CN212717164U CN212717164U CN202021409709.4U CN202021409709U CN212717164U CN 212717164 U CN212717164 U CN 212717164U CN 202021409709 U CN202021409709 U CN 202021409709U CN 212717164 U CN212717164 U CN 212717164U
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Abstract
The utility model discloses an oil-free compressor system for a hydrogen fuel cell, which comprises an oil injection compressor driven by a first motor, wherein an air inlet valve is arranged on an air inlet pipeline of the oil injection compressor, an oil inlet pipeline of the oil injection compressor is connected with an oil-gas barrel, and an exhaust end of the oil injection compressor is communicated with a cavity of the oil-gas barrel through an oil-gas mixing pipeline; an oil-fine separator is arranged in the oil-gas barrel, the exhaust end of the oil-gas barrel is connected with an exhaust pipeline, and a pressure maintaining valve and an oil removal purifier are arranged on the exhaust pipeline; the oil removal purifier comprises a reactor, an electric heater and a catalytic oxidation catalyst which is arranged in the reactor and is used for converting oil into carbon dioxide and water. The oil injection type compressor is integrated in the hydrogen fuel cell, so that the system of the hydrogen fuel cell has low noise, high reliability, long service life and improved efficiency. And an oil-free purifier is integrated, and oil in the oil-containing compressed air is decomposed by a catalytic oxidation catalyst, so that high-quality oil-free compressed air is obtained.
Description
Technical Field
The utility model relates to a hydrogen fuel cell technical field, concretely relates to oil-free compressor system for hydrogen fuel cell.
Background
With the increasing deterioration of global environment and the shortage of fossil energy, countries in the world are actively searching new green and environmentally friendly energy to solve the above problems, in which hydrogen energy is considered as the ultimate energy of human beings, and is receiving widespread attention and research. The hydrogen fuel cell vehicle as a use mode of hydrogen energy has been advanced to people's lives at present, wherein the hydrogen fuel cell compressor is used as a core part of a fuel cell reactor, and the hydrogen fuel cell vehicle requires no oil in exhaust, has high response speed, high reliability, long service life, low noise vibration, high efficiency, light weight, small size and space and high technical threshold.
At present, the main fuel cell air compressor mainly has three types of oil-free screw type, oil-free Roots type and oil-free centrifugal type, but the three types of compressors have the outstanding problems of high noise, low reliability, short service life and low efficiency at present. The reason is that the noise is high due to high rotating speed, the reliability of the product is reduced due to variable working conditions of the vehicle-mounted environment, and meanwhile, the efficiency is low due to overlarge gaps between the rotors. Therefore, there is a need for an improved compressor system for a hydrogen fuel cell, which has a higher performance compressor and can ensure the effect of outputting oil-free compressed air.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems mentioned in the background art, the utility model provides an oil-free compressor system for hydrogen fuel cell, which comprises an oil injection compressor driven by a first motor, wherein an air inlet valve is arranged on an air inlet pipeline of the oil injection compressor, an oil inlet pipeline of the oil injection compressor is connected with an oil-gas barrel, and an exhaust end of the oil injection compressor is communicated with a cavity of the oil-gas barrel through an oil-gas mixing pipeline; an oil-fine separator for performing oil-gas separation on mixed oil gas is arranged in the oil-gas barrel, an exhaust end of the oil-gas barrel is connected with an exhaust pipeline, and a pressure maintaining valve and an oil removal purifier are arranged on the exhaust pipeline; the oil removal purifier comprises a reactor, an electric heater and a catalytic oxidation catalyst which is arranged in the reactor and is used for converting oil into carbon dioxide and water.
Compared with the prior art, the technical scheme of the utility model have following advantage:
adopt the utility model discloses an oil-free compressor system for hydrogen fuel cell has integrateed oil spout formula compressor in hydrogen fuel cell and has supplied with compressed air, can make hydrogen fuel cell's system noise low, the reliability is high, longe-lived, efficiency can promote based on oil spout formula compressor's characteristic. And because of the oil-free requirement of the hydrogen fuel cell, an oil-free purifier is integrated in the system, and the decomposition reaction of the catalytic oxidation catalyst on oil in the oil-containing compressed air is accelerated by supplying heat through an electric heater, so that high-quality oil-free compressed air is obtained.
Preferably, the oil purifier further comprises a water removal filter provided at the front end of the oil purifier.
Preferably, the oil removal clarifier is still including the high-efficient heat exchanger that has the heat transfer chamber, be equipped with the coil pipe in the high-efficient heat exchanger, the gas vent of dewatering filter and the air inlet intercommunication in the heat transfer chamber of high-efficient heat exchanger, the gas outlet in the heat transfer chamber of high-efficient heat exchanger and the air inlet intercommunication of reactor, the gas vent and the one end of coil pipe of reactor are connected, the other end of coil pipe is connected the exhaust pipe and is carried out the air feed.
Preferably, the pressure maintenance valve includes a first pressure maintenance valve located between the exhaust end of the oil and gas barrel and the water removal filter, and a second pressure maintenance valve located between the water removal filter and the second pressure maintenance valve.
Preferably, the oil-fine separator in the oil-gas barrel is further communicated with the oil injection type compressor through an oil return pipeline, and the oil return pipeline is provided with an oil return one-way valve.
Preferably, a temperature control valve and an oil filter are installed on the oil inlet pipeline, an oil cooler is installed between the temperature control valve and the oil filter, and the oil cooler comprises a fan driven by a second motor and a radiator close to the fan and the oil inlet pipeline.
Preferably, the oil-gas barrel is also provided with an oil observation mirror, a safety valve and an oil discharge pipeline with an oil drain valve.
Preferably, the oil-injection compressor is an oil-injection screw compressor, an oil-injection scroll compressor, an oil-injection sliding vane compressor or an oil-injection piston compressor.
Preferably, an air filter is mounted on the intake passage near an intake end of the intake valve.
Preferably, a temperature sensor is installed on the oil-gas mixing pipeline.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a block diagram of an oil-free compressor system for a hydrogen fuel cell in accordance with the present invention.
Wherein the reference numerals are:
1. the device comprises a first motor, a second motor, a fuel injection compressor, a third motor, a fourth motor, a fifth motor, a sixth motor, a seventh motor, a sixth motor, a seventh motor, a sixth motor, a seventh.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Examples
Referring to fig. 1, the present invention provides an oil-free compressor system for a hydrogen fuel cell, including an oil-injection compressor 2 driven by a first motor 1, an air inlet valve 3 is installed on an air inlet pipeline of the oil-injection compressor 2, an oil inlet pipeline of the oil-injection compressor 2 is connected with an oil-gas barrel 4, and an exhaust end of the oil-injection compressor 2 is communicated with a cavity of the oil-gas barrel 4 through an oil-gas mixing pipeline; an oil-fine separator for performing oil-gas separation on the mixed oil gas is arranged in the oil-gas barrel 4, the exhaust end of the oil-gas barrel 4 is connected with an exhaust pipeline, and a pressure maintaining valve and an oil removal purifier are arranged on the exhaust pipeline; the oil removal purifier comprises a reactor 5, an electric heater and a catalytic oxidation catalyst 6 which is arranged in the reactor 5 and is used for converting oil into carbon dioxide and water.
Adopt the utility model discloses an oil-free compressor system for hydrogen fuel cell has integrateed oil spout formula compressor 2 in hydrogen fuel cell and has supplied with compressed air, can make hydrogen fuel cell's system noise low, the reliability is high, longe-lived, efficiency can promote based on oil spout formula compressor 2's characteristic. And because of the oil-free requirement of the hydrogen fuel cell, an oil-free purifier is integrated in the system, heat is supplied by an electric heater, and the decomposition reaction of the catalytic oxidation catalyst 6 on oil in the oil-containing compressed air is accelerated, so that high-quality oil-free compressed air is obtained.
Wherein, the filter core of the oil fine separator is made of multilayer fine glass fiber, and the foggy oil gas in the compressed air is almost completely filtered after passing through the oil fine separator. The oil removing method has the advantages that the effective and reliable oil removing mode of the compressed air is few, the common oil removing method mostly adopts the additional installation of a special oil removing part and removes oil in a physical mode, but the method only has a good effect on removing oil drops and oil mist in the compressed air, but cannot remove residual oil in a molecular state in the compressed air basically. The reactor and the catalyst can be used for carrying out catalytic oxidation on the molecular oil and carrying out chemical oil removal and purification.
Preferably, the oil-free compressor system further includes a water removal filter 7, and the water removal filter 7 is provided at a front end of the oil removal purifier. The design of the water removal filter 7 can effectively separate liquid water in the compressed air, so that the loss of equipment is reduced, and the subsequent connected reactor 5 is protected.
Preferably, the oil removal purifier further comprises a high-efficiency heat exchanger 8 with a heat exchange cavity, a coil is arranged in the high-efficiency heat exchanger 8, an air outlet of the water removal filter 7 is communicated with an air inlet of the heat exchange cavity of the high-efficiency heat exchanger 8, an air outlet of the heat exchange cavity of the high-efficiency heat exchanger 8 is communicated with an air inlet of the reactor 5, an air outlet of the reactor 5 is connected with one end of the coil, and an air exhaust pipeline is connected with the other end of the coil to supply air. The low-temperature gas from the dewatering filter 7 enters the reactor 5 through the heat exchange cavity of the high-efficiency heat exchanger 8, an electric heater is arranged at the inlet of the reactor 5, the oil-containing compressed air and a catalyst are subjected to rapid catalytic oxidation reaction at a proper temperature after being heated by electric heating, oil impurities are thoroughly removed, the clean high-temperature compressed gas enters the coil pipe of the high-efficiency heat exchanger 8 again, the clean high-temperature compressed gas exchanges heat with the low-temperature gas accessed in the heat exchange cavity and then is discharged for gas supply, and partial heat is recovered to reduce the load of a heating system.
Preferably, the pressure maintaining valves include a first pressure maintaining valve 9 and a second pressure maintaining valve 10, the first pressure maintaining valve 9 is located between the exhaust end of the oil drum 4 and the water removing filter 7, the oil removing purifier is located between the water removing filter 7 and the second pressure maintaining valve 10, and the two pressure maintaining valves are respectively installed at appropriate positions in the pipeline to maintain the pressure of the compressed air within a set range.
Preferably, the oil fine separator in the oil-gas barrel 4 is also communicated with the oil injection type compressor 2 through an oil return pipeline, and the oil return pipeline is provided with an oil return one-way valve 11. The oil filtered out from the oil fine separator is gathered and flows back to the inlet side of the compressor in one way through the one-way valve by virtue of the oil return pipeline.
Preferably, a thermo-valve 12 and an oil filter 13 are installed on the oil inlet line, and an oil cooler including a fan 20 driven by the second motor 14 and a radiator 21 adjacent to the fan 20 and the oil inlet line is installed between the thermo-valve 12 and the oil filter 13. When the system operates, pressure exists in the oil gas barrel 4, lubricating oil is pressed into the oil cooler, impurity particles are removed through the oil filter 13, and then the lubricating oil enters a compression chamber of the compressor, and in the embodiment, the fan 20 driven by the second motor 14 carries out air-cooled cooling and heat dissipation.
Preferably, the oil barrel 4 is also provided with an oil observation mirror 15, a safety valve 16 and an oil discharge pipeline with an oil drain valve 17. The oil observation mirror 15 is used for observing the level of lubricating oil in the oil-gas barrel 4, the oil drain valve 17 is installed at the bottom of the oil-gas barrel 4, oil is drained or condensed water in the oil-gas barrel is discharged according to needs, and when the pressure in the oil-gas barrel is higher than a set pressure by a set value, the safety valve 16 can be opened, so that the pressure in the barrel is reduced to the set pressure.
Preferably, the oil-injection compressor 2 is an oil-injection screw compressor, an oil-injection scroll compressor, an oil-injection sliding vane compressor, or an oil-injection piston compressor.
Preferably, an air filter 18 is mounted on the intake passage near the intake end of the intake valve 3. After the dust is filtered out by the air filter 18, the outside air enters the main compression chamber of the compressor through the air intake valve 3 and is compressed and mixed with the lubricating oil.
Preferably, the oil-gas mixing pipeline is provided with a temperature sensor 19 for real-time temperature detection and risk reminding of the mixed oil gas discharged by the compressor.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An oil-free compressor system for a hydrogen fuel cell, characterized by: the oil injection type compressor is driven by a first motor, an air inlet valve is installed on an air inlet pipeline of the oil injection type compressor, an oil inlet pipeline of the oil injection type compressor is connected with an oil-gas barrel, and an exhaust end of the oil injection type compressor is communicated with a cavity of the oil-gas barrel through an oil-gas mixing pipeline; an oil-fine separator for performing oil-gas separation on mixed oil gas is arranged in the oil-gas barrel, an exhaust end of the oil-gas barrel is connected with an exhaust pipeline, and a pressure maintaining valve and an oil removal purifier are arranged on the exhaust pipeline; the oil removal purifier comprises a reactor, an electric heater and a catalytic oxidation catalyst which is arranged in the reactor and is used for converting oil into carbon dioxide and water.
2. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: still include the dewatering filter, the dewatering filter is located the front end of deoiling clarifier.
3. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 2, wherein: the oil removal clarifier is still including the high-efficient heat exchanger that has the heat transfer chamber, be equipped with the coil pipe in the high-efficient heat exchanger, the gas vent of dewatering filter and the air inlet intercommunication in the heat transfer chamber of high-efficient heat exchanger, the gas outlet in the heat transfer chamber of high-efficient heat exchanger and the air inlet intercommunication of reactor, the gas vent and the one end of coil pipe of reactor are connected, the other end of coil pipe is connected the exhaust pipe and is carried out the air feed.
4. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: the pressure maintenance valve includes a first pressure maintenance valve located between the exhaust end of the oil drum and the water removal filter and a second pressure maintenance valve, and the oil removal purifier is located between the water removal filter and the second pressure maintenance valve.
5. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: and the oil fine separator in the oil-gas barrel is also communicated with the oil injection type compressor through an oil return pipeline, and the oil return pipeline is provided with an oil return one-way valve.
6. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: the oil cooler comprises a fan driven by a second motor and a radiator close to the fan and the oil inlet pipeline.
7. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: and the oil-gas barrel is also provided with an oil observation mirror, a safety valve and an oil discharge pipeline with an oil drain valve.
8. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: the oil injection type compressor is an oil injection screw compressor, an oil injection scroll compressor, an oil injection sliding vane compressor or an oil injection piston compressor.
9. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: and an air filter is arranged at the air inlet end of the air inlet pipeline close to the air inlet valve.
10. An oil-free compressor system for a hydrogen fuel cell as claimed in claim 1, wherein: and a temperature sensor is arranged on the oil-gas mixing pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409709.4U CN212717164U (en) | 2020-07-17 | 2020-07-17 | Oil-free compressor system for hydrogen fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021409709.4U CN212717164U (en) | 2020-07-17 | 2020-07-17 | Oil-free compressor system for hydrogen fuel cell |
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| Publication Number | Publication Date |
|---|---|
| CN212717164U true CN212717164U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021409709.4U Active CN212717164U (en) | 2020-07-17 | 2020-07-17 | Oil-free compressor system for hydrogen fuel cell |
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| Country | Link |
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| CN (1) | CN212717164U (en) |
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- 2020-07-17 CN CN202021409709.4U patent/CN212717164U/en active Active
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