阅读说明：本技术 一种全密封无泄漏磁力驱动氢气循环泵 (Totally enclosed leak-free magnetic force driving hydrogen circulating pump ) 是由 冷承霖 孙鹏 于 2021-10-27 设计创作，主要内容包括：本发明涉及一种全密封无泄漏磁力驱动氢气循环泵,所述的氢气循环泵包括电机腔和泵壳,所述电机腔和泵壳之间设有密封隔板,所述电机腔内固定安装有定子绕组,所述泵壳内转动安装有叶轮,所述叶轮表面上固定镶嵌有永磁体转子,所述定子绕组的铁芯与线圈采用平面设计方式,所述定子绕组的磁场平面朝向所述叶轮平面上的永磁体转子,所述定子绕组产生磁场驱动用永磁体转子带动叶轮转动,所述泵壳上设有进气口和出气口。所述氢气循环泵可以有效避免介质含油,电机定子与电机永磁体转子封闭隔离,永磁体转子与叶轮集成,介质完全密封,完全避免介质泄露,避免安全隐患。(The invention relates to a fully-sealed leakage-free magnetic force-driven hydrogen circulating pump which comprises a motor cavity and a pump shell, wherein a sealing partition plate is arranged between the motor cavity and the pump shell, a stator winding is fixedly installed in the motor cavity, an impeller is rotatably installed in the pump shell, a permanent magnet rotor is fixedly embedded on the surface of the impeller, an iron core and a coil of the stator winding adopt a planar design mode, a magnetic field plane of the stator winding faces the permanent magnet rotor on the impeller plane, the stator winding generates a magnetic field to drive the permanent magnet rotor to drive the impeller to rotate, and an air inlet and an air outlet are formed in the pump shell. The hydrogen circulating pump can effectively avoid the medium oil content, and motor stator seals with motor permanent magnet rotor and keeps apart, and permanent magnet rotor is integrated with the impeller, and the medium is sealed completely, avoids the medium to reveal completely, avoids the potential safety hazard.)

1. A fully-sealed leakage-free magnetic force-driven hydrogen circulating pump is characterized by comprising a motor cavity (1) and a pump shell (2), a sealing clapboard (3) is arranged between the motor cavity (1) and the pump shell (2), a stator winding (4) is fixedly arranged in the motor cavity (1), an impeller (5) is rotatably arranged in the pump shell (2), a permanent magnet rotor (15) is fixedly embedded on the surface of the impeller (5), an iron core and a coil of the stator winding (4) adopt a planar design mode, the magnetic field plane of the stator winding (4) faces the permanent magnet rotor (15) on the plane of the impeller (5), the stator winding (4) generates a magnetic field to drive and drives the impeller (5) to rotate by the permanent magnet rotor (15), an air inlet (6) and an air outlet (7) are arranged on the pump shell (2).

2. A totally enclosed, leak-free, magnetically driven hydrogen circulation pump according to claim 1, characterized in that the hydrogen circulation pump comprises a controller (8), the controller (8) is integrated with the motor chamber (1), the controller (8) is provided with an electrical socket, the electrical socket comprises a high voltage socket (9) and a low voltage socket (10).

3. A fully sealed leakage-free magnetically driven hydrogen circulation pump according to claim 1, wherein a fixed shaft (11) is provided inside the pump housing (2), a bearing (12) is installed in the middle of the impeller (5), and the inner ring of the bearing (12) is installed on the fixed shaft (11).

4. The totally enclosed leakage-free magnetically driven hydrogen circulation pump according to claim 3, wherein the inner wall of the pump casing (2) is provided with flow channels, the flow channels comprise a side flow channel (13) and a lower plane flow channel (14), the side flow channel (13) is located on the side wall inside the pump casing (2), and the lower plane flow channel (14) is located at the bottom end inside the pump casing (2).

5. The totally enclosed leakage-free magnetically driven hydrogen circulation pump according to claim 4, wherein the gas inlet (6) is in communication with the flow channel, the gas outlet (7) is in communication with the flow channel, and both the gas inlet (6) and the gas outlet (7) are in position-wise correspondence with the flow channel.

6. A totally enclosed, leak-free, magnetically driven hydrogen circulation pump according to claim 3, characterized in that the stationary shaft (11) is integrated with the pump housing (2).

7. A fully sealed leak-free magnetically driven hydrogen circulation pump according to claim 1, characterized in that the permanent magnet rotor (15) comprises a first permanent magnet (16) and a second permanent magnet (17), the first permanent magnet (16) and the second permanent magnet (17) being symmetrically distributed over the surface of the impeller (5).

8. A fully sealed leak-free magnetically driven hydrogen circulation pump according to claim 7, characterized in that a sealing O-ring is installed between the sealing partition (3) and the pump housing (2).

Technical Field

The invention relates to a fully-sealed leakage-free magnetic driving hydrogen circulating pump, and belongs to the technical field of hydrogen fuel cells.

Background

The hydrogen fuel cell utilizes the chemical reaction of hydrogen and oxygen to generate current and water, not only has no pollution, but also avoids the problem of time consumption of the traditional cell charging, is a new energy mode with development prospect at present, and can obviously reduce air pollution and greenhouse effect if being popularized and applied to vehicles and other high-pollution power generation tools. The hydrogen fuel cell requires the supplied gas to be clean and oilless, and simultaneously considers the characteristics of flammability and explosiveness of a conveying medium, so that the hydrogen fuel cell has high requirements on leakage prevention of a supply system;

the conventional circulating pump is provided with an oil cavity for lubrication, so that lubricating oil is easy to leak; flammable and explosive gas enters the motor, so that leakage or safety accidents are easily caused; water vapor and the like easily enter the motor to cause short circuit or damage of the motor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the fully-sealed leakage-free magnetic force driving hydrogen circulating pump, which can effectively avoid the oil-containing medium, and the medium is completely sealed, so that the medium leakage is completely avoided, and the potential safety hazard is avoided.

The technical scheme for solving the technical problems is as follows: the utility model provides a totally enclosed does not have magnetic drive hydrogen circulating pump of leaking, the hydrogen circulating pump include motor chamber and pump case, be equipped with sealed partition plate between motor chamber and the pump case, motor chamber internal fixed mounting has stator winding, the impeller is installed to the pump case internal rotation, the fixed permanent magnet rotor that inlays on the impeller surface, stator winding's iron core and coil adopt the planar design mode, stator winding's magnetic field plane orientation permanent magnet rotor on the impeller plane, stator winding produces magnetic field drive permanent magnet rotor and drives the impeller and rotate, be equipped with air inlet and gas outlet on the pump case.

The invention has the beneficial effects that: the stator winding of the hydrogen circulating pump is isolated from the permanent magnet rotor in a closed manner, the permanent magnet rotor is integrated with the impeller, the stator winding and the permanent magnet rotor are isolated in a closed manner in the form of a sealing partition plate, and the medium is completely isolated from the stator winding and is really sealed, so that the medium is completely sealed, the medium leakage is completely avoided, and the safety is improved; in addition, the whole hydrogen circulating pump does not need to be lubricated by lubricating oil, so that the medium oil is effectively avoided, and the gas supplied for the hydrogen fuel cell is clean and oilless.

On the basis of the technical scheme, the invention can be further improved as follows:

further, the hydrogen circulating pump include the controller, the controller with the motor chamber is integrated together, be equipped with the electric socket on the controller, the electric socket includes high-pressure socket and low-pressure socket.

The beneficial effect of adopting the further scheme is that: the controller is arranged to facilitate control of the running rotating speed of the hydrogen circulating pump, the high-voltage socket is connected with high-voltage electricity and used for realizing starting and running of the hydrogen circulating pump, and the low-voltage socket is connected with low-voltage electricity and used for controlling the rotating speed of the hydrogen circulating pump by the controller; the controller and the motor cavity are integrated, the structure is simple and convenient, and the processing and the use are convenient.

Further, a fixed shaft is arranged inside the pump shell, a bearing is arranged in the middle of the impeller, and an inner ring of the bearing is arranged on the fixed shaft.

The beneficial effect of adopting the further scheme is that: the arrangement of the fixed shaft and the bearing facilitates the rotation and installation of the impeller in the pump shell, and the impeller pump has a simple structure and low processing cost.

Furthermore, a flow channel is processed on the inner wall of the pump shell and comprises a side flow channel and a lower plane flow channel, the side flow channel is located on the side wall inside the pump shell, and the lower plane flow channel is located at the bottom end inside the pump shell.

The beneficial effect of adopting the further scheme is that: the arrangement of the flow channel is convenient for the gas to be accelerated by the impeller in the flow channel, so that the gas flow and the pressure rise are increased; the arrangement of the side surface flow channel and the lower plane flow channel has better gas acceleration effect.

Further, the air inlet is communicated with the flow channel, the air outlet is communicated with the flow channel, and the air inlet and the air outlet both correspond to the flow channel in position direction.

The beneficial effect of adopting the further scheme is that: the air inlet and the air outlet correspond to the flow channel in position, so that air can enter and exit the pump shell more conveniently, and the efficiency is higher.

Further, the fixed shaft is integrated with the pump housing.

The beneficial effect of adopting the further scheme is that: the fixed shaft and the pump shell are integrated together, the structure is compact, and the use is convenient.

Further, the permanent magnet rotor comprises a first permanent magnet and a second permanent magnet, and the first permanent magnet and the second permanent magnet are symmetrically distributed on the surface of the impeller.

The beneficial effect of adopting the further scheme is that: the first permanent magnet and the second permanent magnet are symmetrically distributed on the surface of the impeller, so that the stator winding can drive the permanent magnet rotor to drive the impeller to rotate stably.

Furthermore, a sealing O-shaped ring is arranged between the sealing clapboard and the pump shell.

The beneficial effect of adopting the further scheme is that: the arrangement of the sealing O-shaped ring can effectively prevent hydrogen medium from leaking to the stator winding from the pump shell, and prevent hydrogen from leaking to generate potential safety hazards.

Drawings

FIG. 1 is a schematic view of the internal structure of the hydrogen circulation pump in the embodiment;

FIG. 2 is a top view of the impeller in the embodiment;

in the figure, a motor cavity is 1, a pump shell is 2, a sealing partition plate is 3, a stator winding is 4, an impeller is 5, an air inlet is 6, an air outlet is 7, a controller is 8, a high-voltage socket is 9, a low-voltage socket is 10, a fixed shaft is 11, a bearing is 12, a side flow channel is 13, a lower plane flow channel is 14, a permanent magnet rotor is 15, a first permanent magnet is 16, and a second permanent magnet is 17.

Detailed Description

The present invention will be described in detail with reference to the following embodiments in order to make the aforementioned objects, features and advantages of the invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1, a totally enclosed does not have magnetic drive hydrogen circulating pump of leakage, the hydrogen circulating pump include motor chamber 1 and pump case 2, be equipped with sealed partition plate 3 between motor chamber 1 and the pump case 2, fixed mounting has stator winding 4 in the motor chamber 1, impeller 5 is installed to 2 internal rotations of pump case, impeller 5 is fixed to inlay on the surface has permanent magnet rotor 15, stator winding 4's iron core and coil adopt the planar design mode, stator winding 4's magnetic field plane orientation permanent magnet rotor 15 on the impeller 5 plane, stator winding 4 produces the magnetic field drive and drives impeller 5 with permanent magnet rotor 15 and rotate, be equipped with air inlet 6 and gas outlet 7 on the pump case 2.

Specifically, the hydrogen circulating pump include controller 8, controller 8 with motor chamber 1 is integrated together, be equipped with the electric socket on the controller 8, the electric socket includes high-pressure socket 9 and low-pressure socket 10.

Specifically, a fixed shaft 11 is arranged inside the pump shell 2, a bearing 12 is installed in the middle of the impeller 5, and an inner ring of the bearing 12 is installed on the fixed shaft 11.

Specifically, a flow channel is processed on the inner wall of the pump shell 2, the flow channel includes a side flow channel 13 and a lower plane flow channel 14, the side flow channel 13 is located on the side wall inside the pump shell 2, and the lower plane flow channel 14 is located at the bottom end inside the pump shell 2.

Specifically, the air inlet 6 is communicated with the flow channel, the air outlet 7 is communicated with the flow channel, and both the air inlet 6 and the air outlet 7 correspond to the flow channel in position direction.

Specifically, the fixed shaft 11 is integrated with the pump housing 2.

Specifically, as shown in fig. 2, the permanent magnet rotor 15 includes a first permanent magnet 16 and a second permanent magnet 17, and the first permanent magnet 16 and the second permanent magnet 17 are symmetrically distributed on the surface of the impeller 5.

Specifically, a sealing O-ring is installed between the sealing partition plate 3 and the pump housing 2.

When the hydrogen circulating pump is assembled, the controller 8 and the motor cavity 1 are integrated together, a stator winding 4 formed by a stator coil and an iron core is different from a traditional motor, and a formed magnetic field is downward; a sealing partition plate 3 is arranged below the stator winding 4, and the sealing partition plate 3 plays a role in sealing; a permanent magnet rotor 15 is arranged below the sealing partition plate 3, a first permanent magnet 16 and a second permanent magnet 17 are embedded on the impeller 5, a bearing 12 is arranged in the middle of the impeller 5, and the inner ring of the bearing 12 is arranged on the fixed shaft 11; the fixed shaft 11 may be integrated with the pump housing 2; the inner wall of the pump shell 2 is provided with a flow passage, and fluid is accelerated by the impeller 5 in the flow passage to increase the gas flow and the pressure rise.

The medium of the hydrogen circulating pump is completely isolated from the stator winding 4 and is really sealed; the structural scheme of the hydrogen circulating pump is suitable for hydrogen circulating pump assemblies of various models.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.