CN218004928U - Integrated Roots type hydrogen pump structure - Google Patents
Integrated Roots type hydrogen pump structure Download PDFInfo
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- CN218004928U CN218004928U CN202221992992.7U CN202221992992U CN218004928U CN 218004928 U CN218004928 U CN 218004928U CN 202221992992 U CN202221992992 U CN 202221992992U CN 218004928 U CN218004928 U CN 218004928U
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- compression cavity
- driving
- hydrogen pump
- gear box
- motor shell
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Abstract
The utility model relates to an integrated Roots hydrogen pump structure, which is characterized in that a driving motor, a transmission shaft and a driving shaft are arranged in a motor shell, the output end of the driving motor is connected with the driving shaft, the transmission shaft and the driving shaft are all rotatably and hermetically arranged in a compression cavity cover, a compression cavity, the motor shell and a gear box, a driving gear is arranged at the front end of the driving shaft, a transmission gear is arranged at the front end of the transmission shaft, a first rotor is arranged at the rear end of the driving shaft, and a second rotor is arranged at the rear end of the transmission shaft; the front end of the gear box is provided with a control board cover, the control board cover is provided with a control board, a driving wire of the driving motor passes through the gear box and is directly connected with the control board, and the front end of the control board cover is provided with a power box cover plate. The utility model discloses with the integration of hydrogen pump control panel on the hydrogen pump, reduce the cost of whole pump, more do benefit to the integrated installation of hydrogen pump at hydrogen fuel cell system.
Description
Technical Field
The utility model belongs to the technical field of hydrogen circulating pump technique of hydrogen return circuit among the hydrogen fuel cell and specifically relates to an integrated form roots formula hydrogen pump structure.
Background
The hydrogen circulating pump is used for pumping unreacted hydrogen from the outlet of the fuel cell back to the inlet of the fuel cell on a hydrogen loop of the fuel cell power generation system, and the unreacted hydrogen is merged with inlet reaction gas and then enters the fuel cell. On one hand, the circulating pump can be used for introducing the moisture of the tail gas of the reaction gas into the battery to play a role of humidification; on the other hand, the flow velocity of hydrogen in the anode flow channel of the fuel cell can be improved, the accumulation of anode water is prevented, and the anode flooding is avoided; meanwhile, the purpose of improving the utilization rate of the hydrogen is achieved.
The Roots type hydrogen circulating pump is one hydrogen circulating apparatus with hydrogen circulating in hydrogen loop and includes compression cavity comprising compression cavity cover and compression cavity, driving motor, gear box behind the driving motor, controller and pump. The working principle is that the controller sends a signal to drive the motor to rotate, the motor drives the driving shaft to rotate, the gear meshed in the gear box drives the driven shaft and the driving shaft to rotate in opposite directions at the same rotating speed, and when the main shaft and the driven shaft rotate together, the two rotors rotate in opposite directions at the same rotating speed, so that air inlet and air outlet are realized.
The hydrogen pump with the controller separated from the pump body occupies a larger space, is not beneficial to being installed on a hydrogen fuel cell system, and increases the material cost of a shell, a wire harness and the like. In addition, because the hydrogen pump has a high working speed, and in order to improve the gas compression efficiency of the hydrogen pump, the clearances among the impeller rotor, the compression cavity and the compression cavity cover are often very small, and under the working condition of high pressure ratio and large flow rate, the front end of the main shaft is easy to generate great disturbance, so that the impeller rotor collides with the cavity, and even the hydrogen pump is stopped.
Disclosure of Invention
The utility model aims at overcoming the defects existing in the prior art and providing an integrated Roots hydrogen pump structure with high reliability, low cost and convenient installation.
According to the technical scheme provided by the utility model, the integrated Roots hydrogen pump structure comprises a motor shell, a gear box is arranged at the front end of the motor shell, a compression cavity is arranged at the rear end part of the motor shell, a compression cavity cover is arranged at the rear end of the compression cavity, an air inlet and outlet joint is arranged on the surface of the compression cavity cover, and the compression cavity cover is in sealing fit with the compression cavity, the compression cavity is in sealing fit with the motor shell, and the motor shell is in sealing fit with the gear box;
a driving motor, a transmission shaft and a driving shaft are arranged in a motor shell, the output end of the driving motor is connected with the driving shaft, the transmission shaft and the driving shaft are rotatably and hermetically arranged in a compression cavity cover, a compression cavity body, the motor shell and a gear box, a driving gear is arranged at the front end of the driving shaft, a transmission gear is arranged at the front end of the transmission shaft and meshed with the driving gear, a first rotor is arranged at the rear end of the driving shaft, a second rotor is arranged at the rear end of the transmission shaft, and the second rotor is matched with the first rotor;
install the control panel lid at the front end of gear box, the control panel lid with the gear box is sealed cooperation, covers at the control panel and installs the control panel, driving motor's drive line passes the gear box and directly is connected with the control panel, installs the power box apron at the front end of control panel lid.
Preferably, the control panel cover is provided with heat dissipation ribs.
Preferably, a breathing hole is arranged on the motor shell.
Preferably, an upper bearing hole and a lower bearing hole are arranged in the compression cavity cover, and a first bearing is installed in the bearing holes.
Preferably, an upper bearing hole and a lower bearing hole are arranged in the compression cavity, and a hydrogen-proof air seal, an air seal baffle and a second bearing are arranged in each bearing hole.
Preferably, an upper oil seal hole and a lower oil seal hole are arranged in the motor shell, and oil seals are arranged in the oil seal holes; an upper bearing hole and a lower bearing hole are arranged in the gear box, a sealing ring groove is formed in the middle of each bearing hole, a third bearing is arranged in each bearing hole, and a sealing ring is arranged in each sealing ring groove.
The utility model discloses with the integration of hydrogen pump control panel on the hydrogen pump, reduce the cost of whole pump, more do benefit to the integrated installation of hydrogen pump at hydrogen fuel cell system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
The utility model discloses an integrated form roots formula hydrogen pump structure, it includes motor housing 7, is equipped with breather 7.1 on motor housing 7, installs gear box 11 at motor housing 7's front end, installs compression cavity 4 at motor housing 7's rear end portion, installs compression chamber lid 22 at compression cavity 4's rear end, installs the air inlet and outlet connector 23 on compression chamber lid 22's left side surface, and compression chamber lid 22 and compression cavity 4, compression cavity 4 and motor housing 7 and gear box 11 all are sealed fit;
a driving motor 6, a transmission shaft 5 and a driving shaft 17 are arranged in a motor shell 7, the output end of the driving motor 6 is connected with the driving shaft 17, the transmission shaft 5 and the driving shaft 17 are rotatably and hermetically arranged in a compression cavity cover 22, a compression cavity 4, the motor shell 7 and a gear box 11, a driving gear 10 is arranged at the front end of the driving shaft 17, a transmission gear 9 is arranged at the front end of the transmission shaft 5, the transmission gear 9 is meshed with the driving gear 10, a first rotor 21 is arranged at the rear end of the driving shaft 17, a second rotor 2 is arranged at the rear end of the transmission shaft 5, and the second rotor 2 is matched with the first rotor 21;
a control board cover 15 is installed at the front end of the gear box 11, the control board cover 15 is in sealing fit with the gear box 11, a control board 16 is installed on the control board cover 15, a driving wire 12 of the driving motor 6 penetrates through the gear box 11 to be directly connected with the control board 16, and a power box cover plate 13 is installed at the front end of the control board cover 15.
The control panel cover 15 is provided with heat dissipating ribs 15.1.
An upper and a lower bearing holes are formed in the compression chamber cover 22, and the first bearing 20 is installed in the bearing holes.
An upper bearing hole and a lower bearing hole are arranged in the compression cavity 4, and a hydrogen-proof gas seal 1, a gas seal baffle 18 and a second bearing 3 are arranged in each bearing hole.
An upper oil seal hole and a lower oil seal hole are arranged in the motor shell 7, and an oil seal 8 is arranged in each oil seal hole; an upper bearing hole and a lower bearing hole are arranged in the gear box 11, and a third bearing 14 is arranged in the bearing holes.
The transmission shaft 5 and the driving shaft 17 pass through the corresponding first bearing 20, the hydrogen-proof gas seal 1, the gas seal baffle 18, the second bearing 3, the oil seal 8 and the third bearing 14 from left to right.
The utility model discloses the during operation is full of hydrogen in the cavity between compression cavity 4 and the compression chamber lid 22, provide energy for driving motor 6 by controller 16, driving motor 6 is rotatory to drive driving shaft 17 and rotates, drive gear 9 on the driving shaft 5 is driven through driving gear 10 on the driving shaft 17 and rotates according to the same rotational speed opposite direction, driving shaft 17 takes first rotor 21, transmission shaft 5 takes the synchronous incorgruous rotation of second rotor 2 to the formation is breathed in and is given vent to anger.
Claims (7)
1. An integrated Roots hydrogen pump structure comprises a motor shell (7), a gear box (11) is installed at the front end of the motor shell (7), a compression cavity (4) is installed at the rear end of the motor shell (7), a compression cavity cover (22) is installed at the rear end of the compression cavity (4), an air inlet and outlet connector (23) is installed on the surface of the compression cavity cover (22), and the compression cavity cover (22) is in sealing fit with the compression cavity (4), the compression cavity (4) is in sealing fit with the motor shell (7), and the motor shell (7) is in sealing fit with the gear box (11);
a driving motor (6), a transmission shaft (5) and a driving shaft (17) are installed in a motor shell (7), the output end of the driving motor (6) is connected with the driving shaft (17), the transmission shaft (5) and the driving shaft (17) are rotatably and hermetically installed in a compression cavity cover (22), a compression cavity (4), the motor shell (7) and a gear box (11), a driving gear (10) is installed at the front end of the driving shaft (17), a transmission gear (9) is installed at the front end of the transmission shaft (5), the transmission gear (9) is meshed with the driving gear (10), a first rotor (21) is installed at the rear end of the driving shaft (17), a second rotor (2) is installed at the rear end of the transmission shaft (5), and the second rotor (2) is in clearance fit with the first rotor (21);
the method is characterized in that: install control panel lid (15) at the front end of gear box (11), control panel lid (15) with gear box (11) are sealed cooperation, install control panel (16) on control panel lid (15), the drive wire (12) of driving motor (6) pass gear box (11) and directly are connected with control panel (16), install power supply box apron (13) at the front end of control panel lid (15).
2. The integrated roots-type hydrogen pump structure as set forth in claim 1, wherein: the control board cover (15) is provided with a heat dissipation rib (15.1).
3. The integrated roots-type hydrogen pump structure as set forth in claim 1, wherein: a breathing hole (7.1) is arranged on the motor shell (7).
4. The integrated roots-type hydrogen pump structure as set forth in claim 1, wherein: an upper bearing hole and a lower bearing hole are arranged in the compression cavity cover (22), and a first bearing (20) is arranged in the bearing holes.
5. The integrated roots-type hydrogen pump structure as set forth in claim 1, wherein: an upper bearing hole and a lower bearing hole are arranged in the compression cavity (4), and a hydrogen-proof air seal (1), an air seal baffle (18) and a second bearing (3) are arranged in each bearing hole.
6. The integrated roots-type hydrogen pump structure as set forth in claim 1, wherein: an upper oil seal hole and a lower oil seal hole are arranged in the motor shell (7), and an oil seal (8) is arranged in the oil seal holes.
7. The integrated roots-type hydrogen pump structure as set forth in claim 1, wherein: an upper bearing hole and a lower bearing hole are arranged in the gear box (11), and a third bearing (14) is arranged in the bearing holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221992992.7U CN218004928U (en) | 2022-07-29 | 2022-07-29 | Integrated Roots type hydrogen pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221992992.7U CN218004928U (en) | 2022-07-29 | 2022-07-29 | Integrated Roots type hydrogen pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218004928U true CN218004928U (en) | 2022-12-09 |
Family
ID=84318029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221992992.7U Active CN218004928U (en) | 2022-07-29 | 2022-07-29 | Integrated Roots type hydrogen pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218004928U (en) |
-
2022
- 2022-07-29 CN CN202221992992.7U patent/CN218004928U/en active Active
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