CN110566459A - Hydrogen circulating pump assembly - Google Patents
Hydrogen circulating pump assembly Download PDFInfo
- Publication number
- CN110566459A CN110566459A CN201910860046.3A CN201910860046A CN110566459A CN 110566459 A CN110566459 A CN 110566459A CN 201910860046 A CN201910860046 A CN 201910860046A CN 110566459 A CN110566459 A CN 110566459A
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- China
- Prior art keywords
- oil
- gear chamber
- shell
- motor
- seal
- 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
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 50
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 50
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000003921 oil Substances 0.000 claims abstract description 106
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 230000006835 compression Effects 0.000 claims abstract description 23
- 238000007906 compression Methods 0.000 claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000010705 motor oil Substances 0.000 claims abstract description 7
- 238000005524 ceramic coating Methods 0.000 claims abstract description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 3
- 210000004722 stifle Anatomy 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 26
- 239000000446 fuel Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 231100000572 poisoning Toxicity 0.000 abstract description 3
- 230000000607 poisoning effect Effects 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/084—Toothed wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/082—Details specially related to intermeshing engagement type pumps
- F04C18/086—Carter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with or adaptation to specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C27/009—Shaft sealings specially adapted for pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0662—Treatment of gaseous reactants or gaseous residues, e.g. cleaning
-
- 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
- Y02E60/50—Fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
sealing rings are arranged between a motor shell and a gear chamber shell and between the gear chamber shell and a supercharger shell for sealing; a motor oil seal is arranged between the motor spindle and the gear chamber shell; first sealing structures are arranged among the male rotor shaft, the female rotor shaft and the gear chamber shell; second sealing structures are arranged among the male rotor shaft, the female rotor shaft and the supercharger shell; the inner wall of the supercharger shell is provided with a ceramic coating; the male rotor and the female rotor are provided with polytetrafluoroethylene coatings; the motor is an explosion-proof motor. Both avoided hydrogen to reveal from the gap outwards, avoided hydrogen again to reveal from compression chamber to gear room, motor direction, improved the security, effectively avoided the lubricating oil in the gear room to reveal in the compression chamber in addition, the oil content of greatly reduced output back hydrogen has avoided fuel cell galvanic pile poisoning to take place, still carries out the coating to internal part in addition and handles, has avoided hydrogen embrittlement hydrogen to corrode, has prolonged life.
Description
the technical field is as follows:
The invention relates to a hydrogen circulation pump assembly.
Background art:
the fuel cell generates electric energy through electrochemical reaction between combustible substances (hydrogen) and oxygen in air, wherein after the fuel cell reaction, discharged gas contains a large amount of hydrogen, and if the hydrogen is directly discharged into the atmosphere, the hydrogen is on one hand wasted energy, on the other hand pollutes the environment, and on the other hand, the hydrogen is flammable and combustible, so that danger is generated. Therefore, it is necessary to recover and reuse such hydrogen. At present, hydrogen is generally recycled to a fuel cell through an air compressor. The existing air compressor has poor sealing performance of the whole structure, hydrogen is easy to leak from a gap, lubricating oil in a gear chamber has the risk of leakage in the process of pressurizing and recycling the hydrogen inside the air compressor, and the lubricating oil is mixed into the hydrogen under the driving of high-pressure gas after leaking to a compression cavity from the gear chamber, so that the oil content of output hydrogen is increased, and the fuel cell stack is poisoned to cause danger; moreover, the internal structure and the material of the existing air compressor cannot resist the corrosion of hydrogen, hydrogen embrittlement and hydrogen corrosion can be generated, and the service life of the air compressor is influenced.
the invention content is as follows:
in order to make up for the defects of the prior art, the invention provides a hydrogen circulating pump assembly, the sealing performance of the whole structure is enhanced, the hydrogen is prevented from leaking outwards from a gap, the hydrogen is prevented from leaking towards the gear chamber and the motor from the compression chamber, the safety is improved, the lubricating oil in the gear chamber is effectively prevented from leaking into the compression chamber, the oil content of the output hydrogen is greatly reduced, the occurrence of the fuel cell stack poisoning phenomenon is avoided, in addition, the coating treatment is carried out on the internal parts, the hydrogen embrittlement and hydrogen corrosion are avoided, the service life is prolonged, and the problems in the prior art are solved.
the technical scheme adopted by the invention for solving the technical problems is as follows:
A hydrogen circulating pump assembly comprises a motor part, a gear chamber part and a supercharger part, wherein the gear chamber part is arranged between the motor part and the supercharger part, the motor part comprises a motor shell, a motor and a motor spindle, the gear chamber part comprises a gear chamber shell, a gear chamber, a driving gear and a driven gear, the supercharger part comprises a supercharger shell, a compression cavity, a male rotor shaft, a female rotor shaft, a male rotor, a female rotor, an air inlet and an air outlet,
Sealing rings are arranged between the motor shell and the gear chamber shell and between the gear chamber shell and the supercharger shell for sealing;
a motor oil seal is arranged between the motor spindle and the gear chamber shell;
First sealing structures are arranged among the male rotor shaft, the female rotor shaft and the gear chamber shell;
second sealing structures are arranged among the male rotor shaft, the female rotor shaft and the supercharger shell;
the inner wall of the supercharger shell is provided with a ceramic coating;
The male rotor and the female rotor are provided with polytetrafluoroethylene coatings;
The motor is an explosion-proof motor.
Grooves are respectively arranged at two ends of the male rotor and the female rotor, and the grooves are in clearance fit with the bosses of the gear chamber shell and the bosses of the supercharger shell to form a labyrinth seal structure.
The first sealing structure comprises an angular contact bearing, a first oil seal and an air seal which are sequentially arranged, the angular contact bearing is close to the gear chamber, and the air seal is close to the compression cavity.
the first sealing structure comprises a rolling bearing, an oil baffle plate, a first oil seal, a second oil seal and an air seal which are sequentially arranged, the rolling bearing is close to the gear chamber, the air seal is close to the compression cavity, an oil cavity is arranged between the first oil seal and the oil baffle plate, and the oil cavity is communicated with the gear chamber through an oil hole arranged in the gear chamber shell; the oil baffle plate is in interference fit with the gear chamber shell, and the oil baffle plate is in clearance fit with the male rotor shaft and the female rotor shaft.
The second oil seal and the air seal are arranged at intervals, and a cavity between the second oil seal and the air seal is communicated with the outside through an air hole in the gear chamber shell.
the spiral threads of the inner lips of the first oil seal and the second oil seal are arranged in a reverse direction.
and the second oil seal is lubricated by lubricating grease.
the second seal structure is including the ceramic stainless steel bearing and the end cover oil blanket that set gradually, the end cover oil blanket is close to the compression chamber, be equipped with O type circle between ceramic stainless steel bearing outer lane and the booster casing, the outer terminal surface of ceramic stainless steel bearing is equipped with wave spring and stifle.
by adopting the scheme, the invention has the following advantages:
(1) sealing rings are arranged between the motor shell and the gear chamber shell and between the gear chamber shell and the supercharger shell for sealing, and sealing rings are arranged between other detachable shells for avoiding hydrogen from leaking outwards from gaps;
(2) the arrangement of the first sealing structure and the motor oil seal avoids hydrogen from leaking from the compression cavity to the gear chamber and the motor, and meanwhile, the motor adopts an explosion-proof motor, so that the safety is improved;
(3) The first sealing structure is designed, so that lubricating oil in the gear chamber is effectively prevented from leaking into the compression cavity, the oil content of the output hydrogen is greatly reduced, and the poisoning phenomenon of the fuel cell stack is avoided;
(4) In the first sealing structure, the oil cavity is communicated with the gear chamber through the oil hole arranged in the gear chamber shell, lubricating oil in the gear chamber can enter the oil cavity through the oil hole to provide enough lubricating oil for the first oil seal to lubricate, so that the lubricating effect between the first oil seal and the male rotor shaft and the female rotor shaft is ensured, the condition that the clearance between the first oil seal and the male rotor shaft and the female rotor shaft rotating at high speed is increased due to abrasion caused by lack of the lubricating oil is avoided, the sealing effect of the first oil seal is ensured, and the service life of the first oil seal is prolonged;
(5) In the first sealing structure, the oil baffle plate is in interference fit with the gear chamber shell, and the oil baffle plate is in clearance fit with the male rotor shaft and the female rotor shaft, so that lubricating oil in the oil cavity can be prevented from entering the rolling bearing from the space between the oil baffle plate and the gear chamber shell and flowing back to the gear chamber from the rolling bearing clearance, the lubricating oil in the oil cavity can only leak to the rolling bearing from the space between the oil baffle plate and the male rotor shaft and the female rotor shaft, the liquid level of the lubricating oil in the oil cavity is increased, and the storage capacity of the lubricating oil in the oil cavity is ensured;
(6) in the first sealing structure, the air holes are arranged, if lubricating oil leaks to a cavity between the second oil seal and the air seal through the first oil seal and the second oil seal, the lubricating oil can be discharged to the outside from the air holes, and the lubricating oil is prevented from leaking to the compression cavity through the air seal;
(7) The inner wall of the shell of the supercharger is provided with a ceramic coating, and the male rotor and the female rotor are provided with polytetrafluoroethylene coatings, so that hydrogen embrittlement and hydrogen corrosion are avoided, and the service life is prolonged.
Description of the drawings:
Fig. 1 is a schematic front view of the present invention.
fig. 2 is a schematic top sectional structure view of the present invention.
fig. 3 is a schematic cross-sectional structure view of first seal structure embodiment 1 of the present invention.
Fig. 4 is a front sectional structural view of the first seal structure embodiment 2 of the present invention.
Fig. 5 is a schematic top cross-sectional structure view of fig. 4.
In the figure:
1. The motor part 10, the motor shell 11, the motor 12, the motor spindle 13, the sealing ring 14 and the motor oil seal;
2. A gear chamber part 20, a gear chamber shell 21, a gear chamber 22, a driving gear 23 and a driven gear;
3. A supercharger part 30, a supercharger housing 31, a compression chamber 32, a male rotor shaft 33, a female rotor shaft 34, a male rotor 35, a female rotor 36, an air inlet 37, an air outlet 38, a groove 39 and a boss;
4. the device comprises a first sealing structure 40, an angular contact bearing 41, a first oil seal 42, a gas seal 43, a rolling bearing 44, an oil baffle plate 45, a second oil seal 46, an oil cavity 47, oil holes 48 and air holes;
5. And a second sealing structure, 50, a ceramic stainless steel bearing, 51, an end cover oil seal, 52, an O-shaped ring, 53, a wave spring, 54 and a blank cap.
the specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
Example 1:
As shown in fig. 1, 2 and 3, a hydrogen circulation pump assembly comprises a motor part 1, a gear chamber part 2 and a supercharger part 3, wherein the gear chamber part 2 is arranged between the motor part 1 and the supercharger part 3, the motor part 1 comprises a motor housing 10, a motor 11 and a motor spindle 12, the gear chamber part 2 comprises a gear chamber housing 20, a gear chamber 21, a driving gear 22 and a driven gear 23, the supercharger part 3 comprises a supercharger housing 30, a compression cavity 31, a male rotor shaft 32, a female rotor shaft 33, a male rotor 34, a female rotor 35, an air inlet 36 and an air outlet 37,
Sealing rings 13 are arranged between the motor shell 10 and the gear chamber shell 20 and between the gear chamber shell 20 and the supercharger shell 30 for sealing, so that hydrogen is prevented from leaking outwards from gaps;
A motor oil seal 14 is arranged between the motor spindle 12 and the gear chamber shell 20; a first sealing structure 4 is arranged between the male rotor shaft 32, the female rotor shaft 33 and the gear chamber shell 20; the first sealing structure 4 comprises an angular contact bearing 40, a first oil seal 41 and a gas seal 42 which are arranged in sequence, wherein the angular contact bearing 40 is close to the gear chamber 21, and the gas seal 42 is close to the compression cavity 31. The arrangement of the first sealing structure and the motor oil seal avoids leakage of hydrogen from the compression cavity to the gear chamber and the motor, and meanwhile, the motor 11 adopts an explosion-proof motor, so that the safety is improved.
second sealing structures 5 are arranged between the male rotor shaft 32, the female rotor shaft 33 and the supercharger shell 30; second seal structure 5 is including ceramic stainless steel bearing 50 and the end cover oil blanket 51 that sets gradually, end cover oil blanket 51 is close to compression chamber 31, be equipped with between ceramic stainless steel bearing 50 outer lane and the booster casing 30, end cover oil blanket 51 and O type circle 52 realize double seal, can avoid hydrogen to outwards reveal from ceramic stainless steel bearing 50, and the outer terminal surface of ceramic stainless steel bearing 50 is equipped with wave spring 53 and stifle 54.
the inner wall of the supercharger shell 30 is provided with a ceramic coating; polytetrafluoroethylene coatings are arranged on the male rotor 34 and the female rotor 35; avoiding hydrogen embrittlement and hydrogen corrosion and prolonging the service life.
Grooves 38 are respectively arranged at two ends of the male rotor 34 and the female rotor 35, and the grooves 38 are respectively in clearance fit with the bosses 39 of the gear chamber shell 20 and the bosses 39 of the supercharger shell 30 to form a labyrinth seal structure. The design can enhance the sealing effect, so that hydrogen is not easy to leak to the first sealing structure 4 and the second sealing structure 5.
Example 2:
as shown in fig. 1, 2, 4 and 5, the present embodiment is different from embodiment 1 in that: the first sealing structure 4 comprises a rolling bearing 43, an oil baffle plate 44, a first oil seal 41, a second oil seal 45 and an air seal 42 which are sequentially arranged, the rolling bearing 43 is close to the gear chamber 21, the air seal 42 is close to the compression cavity 31, an oil cavity 46 is arranged between the first oil seal 41 and the oil baffle plate 44, and the oil cavity 46 is communicated with the gear chamber 21 through an oil hole 47 arranged in the gear chamber shell 20; the oil baffle plate 44 is in interference fit with the gear chamber shell 20, and the oil baffle plate 44 is in clearance fit with the male rotor shaft 32 and the female rotor shaft 33. The second oil seal 45 and the air seal 42 are arranged at intervals, and a cavity between the second oil seal 45 and the air seal 42 is communicated with the outside through an air hole 48 arranged in the gear chamber shell 20. The spiral threads of the inner lips of the first oil seal 41 and the second oil seal 45 are arranged in a reverse direction, so that oil leakage can be avoided, and the sealing effect is enhanced. The second oil seal 45 is lubricated with grease. The rest is the same as in example 1.
the oil chamber 46 is communicated with the gear chamber 21 through an oil hole 47 arranged in the gear chamber shell 20, lubricating oil in the gear chamber 21 can enter the oil chamber 46 through the oil hole 47, sufficient lubricating oil is provided for the first oil seal 41 to lubricate, the lubricating effect between the first oil seal 41 and the male rotor shaft 32 and the female rotor shaft 33 is ensured, the condition that the clearance between the first oil seal 41 and the male rotor shaft 32 and the female rotor shaft 33 rotating at high speed is increased due to abrasion caused by lack of the lubricating oil is avoided, the sealing effect of the first oil seal 41 is ensured, and the service life of the first oil seal 41 is prolonged; the oil baffle plate 44 is in interference fit with the gear chamber shell 20, the oil baffle plate 44 is in clearance fit with the male rotor shaft 32 and the female rotor shaft 33, lubricating oil in the oil chamber 46 can be prevented from entering the rolling bearing 43 from the space between the oil baffle plate 44 and the gear chamber shell 20 and flowing back to the gear chamber 21 from the clearance of the rolling bearing 43, the lubricating oil in the oil chamber 46 can only leak to the rolling bearing 43 from the clearance between the oil baffle plate 44 and the male rotor shaft 32 and the female rotor shaft 33, the liquid level of the lubricating oil in the oil chamber 46 is increased, and the storage amount of the lubricating oil in the oil chamber 46 is ensured. If lubricating oil leaks to the cavity between the second oil seal 45 and the air seal 42 through the first oil seal 41 and the second oil seal 45, the lubricating oil is discharged to the outside from the air vent 48, and a small amount of residual lubricating oil is blocked by the air seal 42, so that the lubricating oil is basically prevented from leaking to the compression cavity 31.
the above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. a hydrogen circulation pump assembly, comprising a motor part, a gear chamber part and a supercharger part, wherein the gear chamber part is arranged between the motor part and the supercharger part, the motor part comprises a motor shell, a motor and a motor spindle, the gear chamber part comprises a gear chamber shell, a gear chamber, a driving gear and a driven gear, the supercharger part comprises a supercharger shell, a compression cavity, a male rotor shaft, a female rotor shaft, a male rotor, a female rotor, an air inlet and an air outlet, and the hydrogen circulation pump assembly is characterized in that:
sealing rings are arranged between the motor shell and the gear chamber shell and between the gear chamber shell and the supercharger shell for sealing;
A motor oil seal is arranged between the motor spindle and the gear chamber shell;
First sealing structures are arranged among the male rotor shaft, the female rotor shaft and the gear chamber shell;
second sealing structures are arranged among the male rotor shaft, the female rotor shaft and the supercharger shell;
the inner wall of the supercharger shell is provided with a ceramic coating;
The male rotor and the female rotor are provided with polytetrafluoroethylene coatings;
the motor is an explosion-proof motor.
2. a hydrogen circulation pump assembly in accordance with claim 1, wherein: grooves are respectively arranged at two ends of the male rotor and the female rotor, and the grooves are in clearance fit with the bosses of the gear chamber shell and the bosses of the supercharger shell to form a labyrinth seal structure.
3. a hydrogen circulation pump assembly according to claim 1 or 2, wherein: the first sealing structure comprises an angular contact bearing, a first oil seal and an air seal which are sequentially arranged, the angular contact bearing is close to the gear chamber, and the air seal is close to the compression cavity.
4. A hydrogen circulation pump assembly according to claim 1 or 2, wherein: the first sealing structure comprises a rolling bearing, an oil baffle plate, a first oil seal, a second oil seal and an air seal which are sequentially arranged, the rolling bearing is close to the gear chamber, the air seal is close to the compression cavity, an oil cavity is arranged between the first oil seal and the oil baffle plate, and the oil cavity is communicated with the gear chamber through an oil hole arranged in the gear chamber shell; the oil baffle plate is in interference fit with the gear chamber shell, and the oil baffle plate is in clearance fit with the male rotor shaft and the female rotor shaft.
5. a hydrogen circulation pump assembly according to claim 4, wherein: the second oil seal and the air seal are arranged at intervals, and a cavity between the second oil seal and the air seal is communicated with the outside through an air hole in the gear chamber shell.
6. A hydrogen circulation pump assembly according to claim 4, wherein: the spiral threads of the inner lips of the first oil seal and the second oil seal are arranged in a reverse direction.
7. A hydrogen circulation pump assembly according to claim 4, wherein: and the second oil seal is lubricated by lubricating grease.
8. A hydrogen circulation pump assembly according to claim 1 or 2, wherein: the second seal structure is including the ceramic stainless steel bearing and the end cover oil blanket that set gradually, the end cover oil blanket is close to the compression chamber, be equipped with O type circle between ceramic stainless steel bearing outer lane and the booster casing, the outer terminal surface of ceramic stainless steel bearing is equipped with wave spring and stifle.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112564379A (en) * | 2021-02-19 | 2021-03-26 | 北京兰天达汽车清洁燃料技术有限公司 | Hydrogen corrosion prevention sealing device, hydrogen corrosion prevention motor and hydrogen circulating pump |
| CN112780562A (en) * | 2021-01-06 | 2021-05-11 | 北京卫星制造厂有限公司 | Circulation pump body and positive displacement reaction gas circulation pump device for fuel cell |
| CN112901444A (en) * | 2021-02-09 | 2021-06-04 | 山东建筑大学 | Linear reciprocating type hydrogen circulating pump |
| CN113007122A (en) * | 2021-03-03 | 2021-06-22 | 北京兰天达汽车清洁燃料技术有限公司 | Centrifugal compressor of hydrogen circulating pump |
| CN113217378A (en) * | 2021-05-18 | 2021-08-06 | 杰锋汽车动力系统股份有限公司 | Hydrogen circulating pump gear chamber cover plate structure |
| CN113250960A (en) * | 2021-06-25 | 2021-08-13 | 杰锋汽车动力系统股份有限公司 | Air compressor machine structure |
| CN114893401A (en) * | 2022-05-12 | 2022-08-12 | 一汽解放汽车有限公司 | Hydrogen circulating pump and vehicle |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06307369A (en) * | 1993-04-27 | 1994-11-01 | Honda Motor Co Ltd | Air pump |
| CN2665413Y (en) * | 2003-11-29 | 2004-12-22 | 潍柴动力股份有限公司 | Sealing arrangement for hydraulic oil pump drive shaft |
| US20070177999A1 (en) * | 2006-01-20 | 2007-08-02 | Toshiro Fujii | Electric pump for hydrogen circulation |
| CN201148906Y (en) * | 2007-09-24 | 2008-11-12 | 无锡康明斯涡轮增压技术有限公司 | Oil seal structure of turbocharger |
| CN203742985U (en) * | 2014-01-10 | 2014-07-30 | 宁波戈士流体科技有限公司 | Oil-free dry type screw rod air compressor |
| CN204677432U (en) * | 2015-05-04 | 2015-09-30 | 江阴天田真空设备制造有限公司 | Full mechanical seal Roots pump |
| CN105065133A (en) * | 2015-07-30 | 2015-11-18 | 江苏江宇动力机械有限公司 | Starting shaft oil leakage prevention structure of single-cylinder diesel |
| CN208330739U (en) * | 2018-06-04 | 2019-01-04 | 浙江恒友机电有限公司 | A kind of fuel cell hermetic compressor |
| CN109958626A (en) * | 2019-04-04 | 2019-07-02 | 烟台菱辰能源有限公司 | The lubricating oil device for preventing leakage of air compressor |
| CN209294049U (en) * | 2018-12-26 | 2019-08-23 | 上海屹源压缩机有限公司 | A kind of sealing device of air compressor machine |
| CN210859205U (en) * | 2019-09-11 | 2020-06-26 | 烟台东德实业有限公司 | Hydrogen circulating pump assembly |
-
2019
- 2019-09-11 CN CN201910860046.3A patent/CN110566459A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06307369A (en) * | 1993-04-27 | 1994-11-01 | Honda Motor Co Ltd | Air pump |
| CN2665413Y (en) * | 2003-11-29 | 2004-12-22 | 潍柴动力股份有限公司 | Sealing arrangement for hydraulic oil pump drive shaft |
| US20070177999A1 (en) * | 2006-01-20 | 2007-08-02 | Toshiro Fujii | Electric pump for hydrogen circulation |
| CN201148906Y (en) * | 2007-09-24 | 2008-11-12 | 无锡康明斯涡轮增压技术有限公司 | Oil seal structure of turbocharger |
| CN203742985U (en) * | 2014-01-10 | 2014-07-30 | 宁波戈士流体科技有限公司 | Oil-free dry type screw rod air compressor |
| CN204677432U (en) * | 2015-05-04 | 2015-09-30 | 江阴天田真空设备制造有限公司 | Full mechanical seal Roots pump |
| CN105065133A (en) * | 2015-07-30 | 2015-11-18 | 江苏江宇动力机械有限公司 | Starting shaft oil leakage prevention structure of single-cylinder diesel |
| CN208330739U (en) * | 2018-06-04 | 2019-01-04 | 浙江恒友机电有限公司 | A kind of fuel cell hermetic compressor |
| CN209294049U (en) * | 2018-12-26 | 2019-08-23 | 上海屹源压缩机有限公司 | A kind of sealing device of air compressor machine |
| CN109958626A (en) * | 2019-04-04 | 2019-07-02 | 烟台菱辰能源有限公司 | The lubricating oil device for preventing leakage of air compressor |
| CN210859205U (en) * | 2019-09-11 | 2020-06-26 | 烟台东德实业有限公司 | Hydrogen circulating pump assembly |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780562A (en) * | 2021-01-06 | 2021-05-11 | 北京卫星制造厂有限公司 | Circulation pump body and positive displacement reaction gas circulation pump device for fuel cell |
| CN112901444A (en) * | 2021-02-09 | 2021-06-04 | 山东建筑大学 | Linear reciprocating type hydrogen circulating pump |
| CN112564379A (en) * | 2021-02-19 | 2021-03-26 | 北京兰天达汽车清洁燃料技术有限公司 | Hydrogen corrosion prevention sealing device, hydrogen corrosion prevention motor and hydrogen circulating pump |
| CN113007122A (en) * | 2021-03-03 | 2021-06-22 | 北京兰天达汽车清洁燃料技术有限公司 | Centrifugal compressor of hydrogen circulating pump |
| CN113007122B (en) * | 2021-03-03 | 2022-02-18 | 北京兰天达汽车清洁燃料技术有限公司 | Centrifugal compressor of hydrogen circulating pump |
| CN113217378A (en) * | 2021-05-18 | 2021-08-06 | 杰锋汽车动力系统股份有限公司 | Hydrogen circulating pump gear chamber cover plate structure |
| CN113217378B (en) * | 2021-05-18 | 2023-03-07 | 杰锋汽车动力系统股份有限公司 | Hydrogen circulating pump gear chamber cover plate structure |
| CN113250960A (en) * | 2021-06-25 | 2021-08-13 | 杰锋汽车动力系统股份有限公司 | Air compressor machine structure |
| CN113250960B (en) * | 2021-06-25 | 2023-12-22 | 杰锋汽车动力系统股份有限公司 | Air compressor structure |
| CN114893401A (en) * | 2022-05-12 | 2022-08-12 | 一汽解放汽车有限公司 | Hydrogen circulating pump and vehicle |
| CN114893401B (en) * | 2022-05-12 | 2023-12-12 | 一汽解放汽车有限公司 | Hydrogen circulating pump and vehicle |
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