CN114810591A - Low-temperature-rise low-noise hydrogen circulating pump - Google Patents
Low-temperature-rise low-noise hydrogen circulating pump Download PDFInfo
- Publication number
- CN114810591A CN114810591A CN202210462600.4A CN202210462600A CN114810591A CN 114810591 A CN114810591 A CN 114810591A CN 202210462600 A CN202210462600 A CN 202210462600A CN 114810591 A CN114810591 A CN 114810591A
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- Prior art keywords
- cavity
- chamber
- drainage tube
- pressure boost
- cooling structure
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Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000001257 hydrogen Substances 0.000 title claims abstract description 33
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 31
- 239000007789 gas Substances 0.000 claims abstract description 22
- 210000000078 claw Anatomy 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 3
- 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
- 238000007906 compression Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 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
Images
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
- F04C18/12—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
- F04C18/126—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 radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots 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
- 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
-
- 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
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
- F04C29/04—Heating; Cooling; Heat insulation
-
- 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
- F04C29/06—Silencing
-
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C2210/00—Fluid
- F04C2210/10—Fluid working
- F04C2210/1055—Hydrogen (H2)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a low temperature rise low noise hydrogen circulating pump, includes motor, gear room and booster, be equipped with the pressure boost chamber in the booster, male rotor and female rotor are installed to the pressure boost intracavity, be equipped with intake pipe and the blast pipe that is linked together with the pressure boost chamber on the booster, the intake pipe is equipped with the chamber of admitting air with the intercommunication department in pressure boost chamber, the blast pipe is equipped with the exhaust chamber with the intercommunication department in pressure boost chamber, and the exhaust chamber is linked together through drainage tube and pressure boost chamber, is equipped with cooling structure on the drainage tube, and cooling structure is used for cooling down to the gas in the drainage tube. The cooling structure is used for cooling the gas in the drainage tube, and the gas in the exhaust cavity enters the pressurizing cavity after being cooled by the cooling structure on the drainage tube so as to reduce the temperature in the pressurizing cavity, thereby reducing the temperature rise of the pressurizing device, reducing the outlet temperature and forming a virtuous circle; after the gas in the exhaust cavity enters the pressurization cavity, the pressure of the pressurization cavity is increased, the pressure difference between the pressurization cavity and the exhaust cavity is reduced, the noise is reduced, and the overall performance of the hydrogen circulating pump is improved.
Description
The technical field is as follows:
the invention relates to a low-temperature-rise low-noise hydrogen circulating pump.
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, these hydrogen-containing mixed gases are generally recycled to the fuel cell by a hydrogen circulation pump for recycling. Present hydrogen circulating pump can release heat in compression process and make exit temperature improve, because there is the clearance between hydrogen circulating pump's the two rotors, thereby form the internal leakage, and the hydrogen molecule is little, it is bigger that the same internal leakage of clearance internal leakage, the gaseous inlet chamber temperature that has promoted of internal leakage, thereby lead to vicious circle, through a period of time operation, the booster appears the excess temperature easily, the card dies, phenomenons such as trouble easily appear in the motor, the internal leakage leads to the inside atmospheric pressure of booster to reduce simultaneously, the inside atmospheric pressure of booster and the increase of gas vent pressure differential, lead to the noise increase, consequently above problem has influenced hydrogen circulating pump's performance, hydrogen circulating pump's development has been restricted.
In summary, in the field of hydrogen circulation pumps, the above problems have become a technical problem to be solved urgently in the industry.
The invention content is as follows:
the invention provides a low-temperature-rise low-noise hydrogen circulating pump for making up the defects of the prior art, solves the problems of over-temperature and blockage caused by internal leakage between two rotors of the conventional hydrogen circulating pump, and solves the problems of large pressure difference between the internal air pressure of a supercharger and an exhaust port and large noise of the conventional hydrogen circulating pump.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a low temperature rise low noise hydrogen circulating pump, includes motor, gear room and booster, be equipped with the pressure boost chamber in the booster, male rotor and female rotor are installed to the pressure boost intracavity, be equipped with intake pipe and the blast pipe that is linked together with the pressure boost chamber on the booster, the intake pipe is equipped with the chamber of admitting air with the intercommunication department in pressure boost chamber, the blast pipe is equipped with the chamber of exhausting with the intercommunication department in pressure boost chamber, the chamber of exhausting is linked together through drainage tube and pressure boost chamber, be equipped with cooling structure on the drainage tube, cooling structure is used for cooling down to the gas in the drainage tube.
The cooling structure comprises a plurality of radiating fins arranged on the outer surface of the drainage tube.
The cooling structure comprises a water cooling pipeline arranged on the outer surface of the drainage pipe.
The drainage tube is communicated with the position of the pressurizing cavity close to the exhaust cavity.
And part of gas in the exhaust cavity enters the pressurizing cavity after being cooled by the cooling structure on the drainage tube so as to reduce the temperature in the pressurizing cavity.
After part of gas in the exhaust cavity enters the pressurization cavity, the pressure of the pressurization cavity is increased, and the pressure difference between the pressurization cavity and the exhaust cavity is reduced to reduce noise.
The number of the blades of the male rotor and the female rotor is 2-8.
The male and female rotors comprise roots rotors or claw rotors.
By adopting the scheme, the invention has the following advantages:
the exhaust cavity is communicated with the pressurizing cavity by adding the drainage tube, the cooling structure is arranged on the drainage tube and used for cooling gas in the drainage tube, and the gas in the exhaust cavity enters the pressurizing cavity after being cooled by the cooling structure on the drainage tube so as to reduce the temperature in the pressurizing cavity, so that the temperature rise of the supercharger is reduced, the outlet temperature is reduced, a virtuous circle is formed, and the condition that the supercharger is clamped is avoided; after the gas in the exhaust cavity enters the pressurization cavity, the pressure of the pressurization cavity is increased, the pressure difference between the pressurization cavity and the exhaust cavity is reduced, the noise is reduced, and the overall performance of the hydrogen circulating pump is improved.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic top view of the present invention.
In the figure, the device comprises a motor 1, a motor 2, a gear chamber 3, a supercharger 4, a supercharging cavity 5, a male rotor 6, a female rotor 7, an air inlet cavity 8, an air exhaust cavity 9 and a drainage tube.
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.
As shown in fig. 1-2, a low temperature rise low noise hydrogen circulating pump, includes motor 1, gear room 2 and booster 3, be equipped with pressure boost chamber 4 in the booster 3, install male rotor 5 and female rotor 6 in the pressure boost chamber 4, be equipped with intake pipe and the blast pipe that is linked together with pressure boost chamber 4 on the booster 3, intake pipe and pressure boost chamber 4's intercommunication department is equipped with air inlet chamber 7, the blast pipe is equipped with exhaust chamber 8 with pressure boost chamber 4's intercommunication department, exhaust chamber 8 is linked together with pressure boost chamber 4 through drainage tube 9, be equipped with cooling structure on the drainage tube 9, cooling structure is used for cooling down the gas in the drainage tube 9.
The cooling structure comprises a plurality of radiating fins arranged on the outer surface of the drainage tube 9.
The cooling structure comprises a water cooling pipe arranged on the outer surface of the draft tube 9.
The drainage tube 9 is communicated with the pressurizing cavity 4 close to the exhaust cavity 8 to avoid internal blow-by.
Part of the gas in the exhaust cavity 8 enters the pressurizing cavity 4 after being cooled by the cooling structure on the drainage tube 9 so as to reduce the temperature in the pressurizing cavity 4, thereby reducing the temperature rise of the pressurizer 3, reducing the outlet temperature, forming virtuous circle and avoiding the condition that the pressurizer 3 is blocked.
After part of gas in the exhaust cavity 8 enters the pressurizing cavity 4, the pressure of the pressurizing cavity 4 is increased, the pressure difference between the pressurizing cavity 4 and the exhaust cavity 8 is reduced to reduce noise, and the overall performance of the hydrogen circulating pump is improved.
The number of the blades of the male rotor 5 and the female rotor 6 is 2-8.
The male and female rotors 5, 6 comprise roots or claw rotors.
During operation, motor 1 drives male rotor 5 and female rotor 6 high-speed rotation, and gas gets into air inlet chamber 7 from the intake pipe, and the gas temperature that gets into the intake pipe is about 60 degrees, and after the pressure boost in pressure boost chamber 4, discharge from the blast pipe through exhaust chamber 8, and the temperature of blast pipe exhaust gas is about 100 degrees, and partial gas can reduce to about 30 degrees after the cooling structure cooling of drainage tube 9, then gets into pressure boost chamber 4 to reduce the temperature in pressure boost chamber 4, avoid the temperature rise in pressure boost chamber 4 too high, has reduced the pressure differential of pressure boost chamber 4 with exhaust chamber 8 simultaneously.
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. The utility model provides a low temperature rise low noise hydrogen circulating pump which characterized in that: including motor, gear chamber and booster, be equipped with the pressure boost chamber in the booster, male rotor and female rotor are installed to the pressure boost intracavity, be equipped with intake pipe and the blast pipe that is linked together with the pressure boost chamber on the booster, the intake pipe is equipped with the chamber of admitting air with the intercommunication department in pressure boost chamber, the blast pipe is equipped with the chamber of exhausting with the intercommunication department in pressure boost chamber, the chamber of exhausting is linked together through drainage tube and pressure boost chamber, be equipped with cooling structure on the drainage tube, cooling structure is used for cooling down to the gas in the drainage tube.
2. The hydrogen circulation pump according to claim 1, wherein: the cooling structure comprises a plurality of radiating fins arranged on the outer surface of the drainage tube.
3. The hydrogen circulation pump according to claim 1, wherein: the cooling structure comprises a water cooling pipeline arranged on the outer surface of the drainage pipe.
4. The hydrogen circulation pump according to claim 1, wherein: the drainage tube is communicated with the position of the pressurizing cavity close to the exhaust cavity.
5. The hydrogen circulation pump according to claim 1, wherein: and part of gas in the exhaust cavity enters the pressurizing cavity after being cooled by the cooling structure on the drainage tube so as to reduce the temperature in the pressurizing cavity.
6. The hydrogen circulation pump according to claim 1, wherein: after part of gas in the exhaust cavity enters the pressurization cavity, the pressure of the pressurization cavity is increased, and the pressure difference between the pressurization cavity and the exhaust cavity is reduced to reduce noise.
7. The hydrogen circulation pump according to claim 1, wherein: the number of the blades of the male rotor and the female rotor is 2-8.
8. The hydrogen circulation pump according to claim 1, wherein: the male and female rotors comprise roots rotors or claw rotors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210462600.4A CN114810591A (en) | 2022-04-28 | 2022-04-28 | Low-temperature-rise low-noise hydrogen circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210462600.4A CN114810591A (en) | 2022-04-28 | 2022-04-28 | Low-temperature-rise low-noise hydrogen circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114810591A true CN114810591A (en) | 2022-07-29 |
Family
ID=82509488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210462600.4A Pending CN114810591A (en) | 2022-04-28 | 2022-04-28 | Low-temperature-rise low-noise hydrogen circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114810591A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207609560U (en) * | 2017-11-01 | 2018-07-13 | 广东肯富来泵业股份有限公司 | Balanced type Roots vacuum pumping system |
| CN114278563A (en) * | 2021-12-23 | 2022-04-05 | 上海重塑能源科技有限公司 | Hydrogen circulating pump for fuel cell, hydrogen circulating system and working method of hydrogen circulating pump |
-
2022
- 2022-04-28 CN CN202210462600.4A patent/CN114810591A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207609560U (en) * | 2017-11-01 | 2018-07-13 | 广东肯富来泵业股份有限公司 | Balanced type Roots vacuum pumping system |
| CN114278563A (en) * | 2021-12-23 | 2022-04-05 | 上海重塑能源科技有限公司 | Hydrogen circulating pump for fuel cell, hydrogen circulating system and working method of hydrogen circulating pump |
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