CN215333436U - Air inlet structure of hydrogen circulating pump - Google Patents
Air inlet structure of hydrogen circulating pump Download PDFInfo
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- CN215333436U CN215333436U CN202121297152.4U CN202121297152U CN215333436U CN 215333436 U CN215333436 U CN 215333436U CN 202121297152 U CN202121297152 U CN 202121297152U CN 215333436 U CN215333436 U CN 215333436U
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Abstract
The utility model discloses an air inlet structure of a hydrogen circulating pump, which comprises a pump head, an air inlet and an air outlet, wherein the air inlet and the air outlet are arranged on the pump head; a groove is formed in one side, close to the end face of the pump head, of the interior of the pump head, an open spiral channel is arranged in the groove, and two ends of the spiral channel are connected with the air inlet and the air outlet respectively; this hydrogen circulating pump simple structure sets up rationally, will the air inlet sets up in the middle part position, not only can admit air, can also discharge when the non-admits air when the pump head is washed down and is placed the water of the inside accumulation of pump head can effectively avoid the problem of hydrogen pump ponding.
Description
Technical Field
The utility model relates to the technical field of hydrogen circulating pumps, in particular to an air inlet structure of a hydrogen circulating pump.
Background
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.
In the conventional hydrogen circulation pump, the supercharger housing is of a split assembly type structure, and includes a compression chamber housing (pump body), an air inlet end cover, and an exhaust chamber housing (pump head) connected by bolts. For example, in the Chinese utility model patent (publication number: CN210371178U), in 2020, a gas inlet and outlet structure of a Roots-type hydrogen circulation pump is disclosed, a pump body is provided with a gas outlet communicated with a rotor cavity, a driving rotor and a driven rotor form a gas outlet cavity with the inner wall of the pump body near the gas outlet, the gas outlet cavity comprises an axial gas outlet part and a radial gas outlet part, the radial gas outlet part is correspondingly communicated with the gas outlet of the pump body, and the gas inlet of the hydrogen circulation pump is arranged along the axial gas inlet end of the rotor and is near the side edge position.
In current hydrogen circulation pump designs, the inlet is typically designed near the side. When the hydrogen circulating pump head is placed down, the accumulated water in the cavity at the front end of the shell can cause overlarge load of the pump, and the shutdown is caused.
Disclosure of Invention
The utility model aims to provide an air inlet structure of a hydrogen circulating pump, aiming at the problems in the prior art.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the hydrogen circulating pump air inlet structure comprises a pump head, an air inlet and an air outlet, wherein the air inlet and the air outlet are arranged on the pump head; the pump head is inside to be close to one side of pump head terminal surface is equipped with the recess, be equipped with open helical passage in the recess, helical passage's both ends are connected respectively the air inlet with the gas outlet. The pump head is placed downwards, and accumulated water generated in the pump body is collected in the spiral channel and is discharged from the air inlet.
This hydrogen circulating pump simple structure sets up rationally, will the air inlet sets up in the middle part position, not only can admit air, can also discharge when the non-admits air when the pump head is washed down and is placed the water of the inside accumulation of pump head can effectively avoid the problem of hydrogen pump ponding.
The spiral passage is arranged, the effective space inside the pump head is reasonably utilized, the pump head can be used as a passage through which air flow passes and a drainage passage, water accumulated in the groove inside the pump head can automatically flow into the spiral passage and then flow to the air inlet and is discharged, and the structure is utilized skillfully to drain water.
The open spiral channel is communicated with the groove, so that water can flow into the spiral channel, and drainage is facilitated.
The pump head terminal surface with the pump head lateral wall is complete structure except that setting up the business turn over gas port, and the outward appearance is regular pleasing to the eye, easily setting up and laying of pump head.
Further, the air inlet comprises an air inlet outer pipe part and an air inlet inner pipe part, and the air inlet inner pipe part extends into the pump head and is communicated with the spiral channel; the air outlet comprises an air outlet outer pipe part and an air outlet inner pipe part, and the air outlet inner pipe part also extends into the pump head and is communicated with the spiral channel; the air inlet inner pipe part is connected with the end part of the inner ring of the spiral channel, and the air outlet inner pipe part is connected with the end part of the outer ring of the spiral channel.
The air inlet with the gas outlet all includes interior outer pipeline, its purpose be convenient for inside and outside the connection, especially be convenient for with helical channel's steady transitional coupling makes helical channel only is with setting up the recess position.
Preferably, a larger chamfer is arranged at the joint of the spiral channel and the air inlet inner pipe part to form a downward groove, so that the opening area of the inner part is increased, air inlet is facilitated, accumulated water in the inner part flows along the air inlet, and drainage is facilitated.
Further, the outer diameter of the air inlet outer pipe part is larger than that of the air inlet inner pipe part, the outer diameter of the air outlet outer pipe part is also larger than that of the air outlet inner pipe part, and bosses are arranged at the end parts of the air inlet outer pipe part and the air outlet outer pipe part. The boss is convenient to be connected with an external air inlet and outlet pipeline.
Further, the air inlet sets up the well center of pump head terminal surface, the gas outlet sets up the pump head lateral wall is close to adjacent lateral wall intersection.
The water flow collecting and discharging device is arranged in the middle of the pump head, so that the water flow in the whole pump head can be collected and discharged conveniently, and the accumulation of water at the periphery and corners is reduced.
Further, the pump head is the rectangle structure, has four the pump head lateral wall, adjacent the circular arc transition sets up between the pump head lateral wall.
Furthermore, the spiral channel is a half-section spiral, and the section of the spiral channel is flush with the groove bottom of the groove and is arranged in a smooth transition mode.
That is to say the spiral channel is arranged at the bottom of the groove, below the groove, so that the water flows downwards.
Further, the recess is cylindrical recess, the bottom of recess all rounds all around the fillet setting, avoids ponding all around, also can avoid setting up the right angle, is favorable to structural stability's improvement.
Further, the pump head is kept away from the one side of air inlet still is connected with the pump body, the pump body has cylinder body and rectangle link, the butt of rectangle link the pump head and with the pump head spiro union is fixed.
Compared with the prior art, the utility model has the beneficial effects that: 1. the hydrogen circulating pump is simple in structure and reasonable in arrangement, the air inlet is arranged at the middle position, air can be fed, water accumulated in the pump head can be discharged when the pump head is not fed with air when the pump head is placed under the water, and the problem of water accumulation of the hydrogen pump can be effectively avoided;
2. the arrangement of the spiral channel reasonably utilizes the effective space in the pump head, the spiral channel not only can be used as a channel for air flow to pass through, but also can be used as a drainage channel, water accumulated in the groove in the pump head can automatically flow into the spiral channel and then flow to the air inlet and is discharged, and the structure is skillfully utilized for drainage;
3. the open spiral channel is communicated with the groove, so that water can flow into the spiral channel, and drainage is facilitated;
4. the pump head terminal surface with the pump head lateral wall is complete structure except that setting up the business turn over gas port, and the outward appearance is regular pleasing to the eye, easily setting up and laying of pump head.
Drawings
FIG. 1 is a schematic view of the overall structure of the air inlet structure of the hydrogen circulation pump according to the present invention;
FIG. 2 is a schematic view of the internal structure of the gas inlet structure of the hydrogen circulation pump according to the present invention;
FIG. 3 is a perspective view of the pump head of the present invention;
FIG. 4 is a schematic diagram of the construction of the spiral channel of the pump head of the present invention;
in the figure: 1. a pump head; 2. an air inlet; 201. an intake outer tube portion; 202. an intake inner tube portion; 3. an air outlet; 301. an outer gas outlet tube portion; 302. an inner gas outlet pipe portion; 4. a groove; 5. a spiral channel; 6. a pump body; 601. a cylindrical body; 602. a rectangular connecting end; 7. and (4) a boss.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element 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. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 4, an air inlet structure of a hydrogen circulation pump includes a pump head 1, and an air inlet 2 and an air outlet 3 which are arranged on the pump head 1, wherein the pump head 1 includes a pump head end surface and a pump head side wall, the air inlet 2 is arranged in the middle of the pump head end surface, and the air outlet 3 is arranged on the pump head side wall; the pump head 1 is internally provided with a groove 4 communicated with the pump body, an open spiral channel 5 is arranged in the groove 4, and two ends of the spiral channel 5 are respectively connected with the air inlet 2 and the air outlet 3.
This hydrogen circulating pump simple structure sets up rationally, will air inlet 2 sets up in the middle part position, not only can admit air, can also discharge when the non-admits air when pump head 1 dashes down to place the problem of hydrogen pump ponding can effectively be avoided to the water of the inside accumulation of pump head 1.
The arrangement of the spiral channel 5 reasonably utilizes the effective space inside the pump head 1, the effective space can be used as a channel through which air flows and a drainage channel, water accumulated in the groove inside the pump head can automatically flow into the spiral channel 5 and then flow to the air inlet 2 and is discharged, and the structure is skillfully utilized for drainage.
The spiral channel 5 is open to communicate with the groove 4, so that water can flow into the spiral channel 5 to facilitate drainage.
The pump head terminal surface with the pump head lateral wall is complete structure except that setting up the business turn over gas port, and the outward appearance is regular pleasing to the eye, easily setting up and laying of pump head.
Further, the air inlet 2 comprises an air inlet outer tube part 201 and an air inlet inner tube part 202, and the air inlet inner tube part 202 extends into the pump head 1 to be communicated with the spiral channel 5; the air outlet 3 comprises an air outlet outer pipe part 301 and an air outlet inner pipe part 302, and the air outlet inner pipe part 302 also extends into the pump head 1 and is communicated with the spiral channel 5; the inlet inner pipe section 202 is connected to the inner end of the spiral channel 5, and the outlet inner pipe section 302 is connected to the outer end of the spiral channel 5.
The air inlet 2 with the gas outlet 3 all includes interior outer pipeline, its purpose be convenient for inside and outside the connection, especially be convenient for with the smooth transitional coupling of helical channel 5 makes helical channel only is with setting up the recess position.
Preferably, a larger chamfer is arranged at the joint of the spiral channel 5 and the air inlet inner pipe part 202 to form a downward groove, so that the opening area inside is increased, air inlet is facilitated, accumulated water inside flows along the air inlet, and drainage is facilitated.
Further, the outer diameter of the outer intake pipe portion 201 is larger than the outer diameter of the inner intake pipe portion 202, the outer diameter of the outer outlet pipe portion 301 is also larger than the outer diameter of the inner outlet pipe portion 302, and the ends of the outer intake pipe portion 201 and the outer outlet pipe portion 301 are respectively provided with an integrated boss 7. The boss 7 is arranged to facilitate connection with an external air inlet and outlet pipeline.
Further, the air inlet 2 is arranged in the middle of the end face of the pump head, and the air outlet 3 is arranged at the intersection of the side walls of the pump head, which are close to the adjacent side walls.
The water flow collecting and discharging device is arranged in the middle of the pump head 1, so that the water flow in the whole pump head can be collected and discharged conveniently, and the water accumulation at the periphery and corners can be reduced.
Further, pump head 1 is the rectangle structure, has four the pump head lateral wall, adjacent the circular arc transition sets up between the pump head lateral wall.
Further, the spiral channel 5 is a half-section spiral, the diameter section of the spiral channel is only half, and the section of the spiral channel 5 is flush with the groove bottom of the groove 4 and is arranged in a smooth transition mode.
That is to say the spiral channel 5 is arranged at the bottom of the groove 4, below the groove 4, so that the water flows downwards.
Further, recess 4 is cylindrical recess, the bottom of recess 4 is all round angle settings all around, avoids ponding all around, also can avoid setting up the right angle, is favorable to structural stability's improvement.
Further, the pump head 1 is kept away from the one side of air inlet 2 still is connected with the pump body 6, the pump body 6 has cylinder body 601 and rectangle link 602, rectangle link 602 butt the pump head 1 and with the pump head 1 spiro union is fixed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The hydrogen circulating pump air inlet structure comprises a pump head, an air inlet and an air outlet, wherein the air inlet and the air outlet are arranged on the pump head; the pump head is inside to be close to one side of pump head terminal surface is equipped with the recess, be equipped with open helical passage in the recess, helical passage's both ends are connected respectively the air inlet with the gas outlet.
2. The hydrogen circulation pump intake structure of claim 1, wherein the intake port comprises an intake outer tube portion and an intake inner tube portion, the intake inner tube portion extending into the pump head to communicate with the spiral channel; the air outlet comprises an air outlet outer pipe part and an air outlet inner pipe part, and the air outlet inner pipe part also extends into the pump head and is communicated with the spiral channel; the air inlet inner pipe part is connected with the end part of the inner ring of the spiral channel, and the air outlet inner pipe part is connected with the end part of the outer ring of the spiral channel.
3. The gas inlet structure of a hydrogen circulation pump according to claim 2, wherein the outer diameter of the gas inlet outer tube portion is larger than the outer diameter of the gas inlet inner tube portion, the outer diameter of the gas outlet outer tube portion is also larger than the outer diameter of the gas outlet inner tube portion, and bosses are provided at the ends of the gas inlet outer tube portion and the gas outlet outer tube portion.
4. The hydrogen circulation pump air intake structure of claim 1, wherein the air inlet is disposed at the center of the pump head end face, and the air outlet is disposed at the pump head side wall near the intersection of adjacent side walls.
5. A hydrogen circulation pump air intake structure according to claim 1, wherein the pump head is of a rectangular configuration having four pump head side walls, and adjacent pump head side walls are arranged in a circular arc transition.
6. The hydrogen circulation pump intake structure of claim 1, wherein the spiral channel is a half-section spiral, and the cross section of the spiral channel is flush with and smoothly transited to the bottom of the groove.
7. The gas inlet structure of a hydrogen circulating pump according to claim 1, wherein the groove is a cylindrical groove, and the bottom of the groove is rounded all around.
8. The intake structure of a hydrogen circulation pump according to claim 1, wherein a pump body is further connected to a face of the pump head away from the intake port, the pump body having a cylindrical body and a rectangular connecting end, the rectangular connecting end abutting against the pump head and being fixed to the pump head by screwing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121297152.4U CN215333436U (en) | 2021-06-10 | 2021-06-10 | Air inlet structure of hydrogen circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121297152.4U CN215333436U (en) | 2021-06-10 | 2021-06-10 | Air inlet structure of hydrogen circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215333436U true CN215333436U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121297152.4U Active CN215333436U (en) | 2021-06-10 | 2021-06-10 | Air inlet structure of hydrogen circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215333436U (en) |
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2021
- 2021-06-10 CN CN202121297152.4U patent/CN215333436U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220208 Address after: 214100 Shuian Yayuan, Huishan District, Wuxi City, Jiangsu Province Patentee after: Chen Bo Address before: 215699 Huijin SOHO, 262 Changjing Road, Zhangjiagang, Suzhou, Jiangsu Patentee before: Han Song |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221104 Address after: 201311 buildings 1 and 2, No. 333, Haiyang 1st Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee after: Shanghai Hurichao Technology Partnership (L.P.) Address before: 214100 Shuian Yayuan, Huishan District, Wuxi City, Jiangsu Province Patentee before: Chen Bo |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230315 Address after: 201800 room 2201 J, 888 Moyu South Road, Anting Town, Jiading District, Shanghai Patentee after: Shanghai Furui Hydrogen New Energy Technology Co.,Ltd. Address before: 201311 buildings 1 and 2, No. 333, Haiyang 1st Road, Lingang New Area, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai Patentee before: Shanghai Hurichao Technology Partnership (L.P.) |
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| TR01 | Transfer of patent right |