CN216241496U

CN216241496U - Bilateral single-channel two-stage pressurizing hydrogen circulating pump

Info

Publication number: CN216241496U
Application number: CN202122891434.3U
Authority: CN
Inventors: 董友军; 衣海飞; 胡庆坡; 姜丹丹
Original assignee: Huaxin Yantai New Energy Technology Co ltd
Current assignee: Huaxin Yantai New Energy Technology Co ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-04-08
Anticipated expiration: 2031-11-24

Abstract

The utility model relates to a bilateral single-channel two-stage pressurizing hydrogen circulating pump, which belongs to the technical field of hydrogen circulating pumps and comprises an outer shell, an impeller and a driver, wherein the impeller is arranged on the outer shell; the outer shell is provided with a sealing cavity, the impeller is arranged in the sealing cavity, and an output shaft of the driver extends into the sealing cavity and is in driving connection with the impeller; the sealed chamber is provided with first runner and second runner, the both sides of impeller are put respectively to first runner and second runner, the one end of first runner and the one end intercommunication of second runner, the other end of first runner is connected with first opening, the other end of second runner is connected with the second opening. The double-side single-channel two-stage pressurizing hydrogen circulating pump is compact in structure and realizes multiple times of pressurization.

Description

Bilateral single-channel two-stage pressurizing hydrogen circulating pump

Technical Field

The utility model relates to a hydrogen circulating pump, in particular to a double-side single-channel two-stage pressurizing hydrogen circulating pump.

Background

The hydrogen circulating pump mainly comprises a shell, an impeller, a motor and a cover plate, wherein a sealed pressurizing cavity is formed between the shell and the cover plate, and the motor is used for driving the impeller to rotate in the pressurizing cavity to realize hydrogen pressurization. The design of single flow makes hydrogen pressure boost effect not obvious, if improves the pressure boost effect through a plurality of hydrogen circulating pumps of series connection and makes entire system too miscellaneous, has also improved equipment cost.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects in the prior art, the utility model provides a double-side single-channel two-stage pressurizing hydrogen circulating pump.

The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a bilateral single-channel two-stage pressurizing hydrogen circulating pump which comprises an outer shell, an impeller and a driver, wherein the impeller is arranged on the outer shell; the outer shell is provided with a sealing cavity, the impeller is arranged in the sealing cavity, and an output shaft of the driver extends into the sealing cavity and is in driving connection with the impeller; the sealed chamber is provided with first runner and second runner, the both sides of impeller are put respectively to first runner and second runner, the one end of first runner and the one end intercommunication of second runner, the other end of first runner is connected with first opening, the other end of second runner is connected with the second opening.

Further, the outer housing comprises a driver housing and an end cap; the end cover is fixedly connected to the end portion of the driver shell to form the sealing cavity, the first flow passage is arranged on the driver shell, and the second flow passage is arranged on the end cover.

Furthermore, the impeller is cylindrical, two end faces of the impeller are respectively provided with an annular groove, the longitudinal section of each groove is semicircular, and a plurality of grids are arranged in the grooves at intervals.

Furthermore, a first air guide port is further arranged on the end face side of the driver shell, which is provided with a first flow channel, a first channel is arranged in the driver shell, and the first air guide port is communicated with the first flow channel through the first channel; the side, provided with the second flow channel, of the end cover is also provided with a second air guide port, a second channel is arranged in the end cover, and the second air guide port is communicated with the second flow channel through the second channel; the first air guide port and the second air guide port are mutually involutory.

Further, the first flow passage and the second flow passage are in an annular shape which is not closed end to end.

The double-side single-channel two-stage pressurizing hydrogen circulating pump at least has the following technical effects:

(1) the hydrogen circulating pump adopts a double-flow-passage design, primary pressurization is realized after hydrogen passes through the first flow passage, secondary pressurization is realized after hydrogen enters the second flow passage, high pressure output can be realized, the requirements of small flow and high pressure difference are met, the fluid efficiency is obviously improved, the overall efficiency of the hydrogen circulating pump is obviously improved, and the energy consumption is reduced;

(2) the first flow channel and the second flow channel share the same impeller, and the structure is compact.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a cross-sectional view of an impeller according to the present invention;

FIG. 4 is a schematic view of the end cap of the present invention;

FIG. 5 is a schematic view of the actuator housing of the present invention;

FIG. 6 is a schematic end view of the end cap of the present invention;

fig. 7 is a schematic end view of a drive housing according to the present invention.

In the figure, 1, an outer shell; 2. an impeller; 3. a driver; 4. sealing the cavity; 5. a first flow passage; 6. a second flow passage; 7. a first port; 8. a second port; 9. a driver housing; 10. an end cap; 11. a groove; 12. a first air guide port; 13. a first channel; 14. a second air guide port; 15. a second channel; 16. a grid.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-7, which are provided by way of example only to illustrate the present invention and not to limit the scope of the present invention.

A bilateral single-channel two-stage pressurizing hydrogen circulating pump comprises an outer shell 1, an impeller 2 and a driver 3; the outer housing 1 comprises a driver housing 9 and an end cap 10; the driver 3 is a motor.

The end cover 10 is fixedly connected to one end of the outer shell 1, and a cavity is formed in the other end of the outer shell 1 and used for placing a controller for controlling the rotation of the driver 3. The end cover 10 and the outer shell 1 form a sealed cavity 4, the impeller 2 is arranged in the sealed cavity 4, and the output end of the driver 3 extends into the sealed cavity 4 and is in driving connection with the impeller 2. The impeller 2 rotates by the driver 3. The seal cavity 4 is provided with a first flow passage 5 and a second flow passage 6, and the first flow passage 5 and the second flow passage 6 are in an annular shape which is not closed end to end. Specifically, the first flow passage 5 is disposed on the driver housing 9, and the second flow passage 6 is disposed on the end cover 10. The impeller comprises an impeller 2 and is characterized in that the first flow channel 5 and the second flow channel 6 are arranged on two sides of the impeller 2 respectively, one end of the first flow channel 5 is communicated with one end of the second flow channel 6, the other end of the first flow channel 5 is connected with a first through hole 7, and the other end of the second flow channel 6 is connected with a second through hole 8. The hydrogen enters the first flow channel 5 from the first port 7 to complete the first pressurization, then enters the second flow channel 6 to complete the second pressurization, and finally is discharged from the second port 8. It should be noted that the first port 7 is not limited to be an intake port and the second port 8 is an exhaust port, and specifically, whether the first port 7 is an intake port or the second port 8 is an intake port is determined by the rotation direction of the motor.

The impeller 2 is cylindrical, the two end faces of the impeller 2 are respectively provided with an annular groove 11, and the longitudinal section of each groove 11 is semicircular. A plurality of grids 16 are arranged in the groove 11, and the grids 16 are arranged at intervals along the extending direction of the groove 11.

A first air guide port 12 is further arranged on the end face side of the driver shell 9 provided with the first flow channel 5, a first channel 13 is arranged in the driver shell 9, and the first air guide port 12 is communicated with the first flow channel 5 through the first channel 13; a second air guide port 14 is further arranged on the end face side of the end cover 10 provided with the second flow channel 6, a second channel 15 is arranged in the end cover 10, and the second air guide port 14 is communicated with the second flow channel 6 through the second channel 15; the first air guide opening 12 and the second air guide opening 14 are mutually matched. The first flow passage 5 and the second flow passage 6 are communicated through a first air guide port 12, a first passage 13, a second air guide port 14 and a second passage 15.

With reference to fig. 2, an A, B, C three point addition seal ring is required in the present device. The addition of a seal at point a is to prevent gas leakage from between the actuator housing 9 and the end cap 10; the sealing ring is added at the point B to prevent gas from leaking between the first gas guide port 12 and the second gas guide port 14; the addition of a seal at point C is to prevent gas leakage from the actuator housing 9. The rest of the structures can refer to the existing hydrogen circulating pump, and are not described in detail herein.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a two side single current way two-stage pressure boost hydrogen circulating pump which characterized in that: comprises an outer shell (1), an impeller (2) and a driver (3); the outer shell (1) is provided with a sealing cavity (4), the impeller (2) is arranged in the sealing cavity (4), and an output shaft of the driver (3) extends into the sealing cavity (4) and is in driving connection with the impeller (2); the sealed chamber (4) are provided with first runner (5) and second runner (6), the both sides of impeller (2) are put respectively to first runner (5) and second runner (6), the one end of first runner (5) and the one end intercommunication of second runner (6), the other end of first runner (5) is connected with first opening (7), the other end of second runner (6) is connected with second opening (8).

2. The double-sided single-channel two-stage supercharging hydrogen circulation pump according to claim 1, characterized in that: the outer housing (1) comprises a driver housing (9) and an end cap (10); the end cover (10) is fixedly connected to the end part of the driver shell (9) to form the sealing cavity (4), the first flow channel (5) is arranged on the driver shell (9), and the second flow channel (6) is arranged on the end cover (10).

3. The double-sided single-channel two-stage supercharging hydrogen circulation pump according to claim 1, characterized in that: the impeller (2) is cylindrical, annular grooves (11) are formed in two end faces of the impeller (2) respectively, the longitudinal section of each groove (11) is semicircular, and a plurality of grids (16) are arranged in the grooves (11) at intervals.

4. The double-sided single-channel two-stage supercharging hydrogen circulation pump according to claim 2, characterized in that: the end face side of the driver shell (9) provided with the first flow channel (5) is also provided with a first air guide port (12), a first channel (13) is arranged in the driver shell (9), and the first air guide port (12) is communicated with the first flow channel (5) through the first channel (13); a second air guide port (14) is further arranged on the end face side, provided with the second flow channel (6), of the end cover (10), a second channel (15) is arranged in the end cover (10), and the second air guide port (14) is communicated with the second flow channel (6) through the second channel (15); the first air guide port (12) and the second air guide port (14) are mutually matched.

5. The double-sided single-channel two-stage supercharging hydrogen circulation pump according to claim 1, characterized in that: the first flow channel (5) and the second flow channel (6) are in an annular shape which is not closed end to end.