Motor waterproof sealing device of vortex type hydrogen circulating pump

Abstract

The motor waterproof sealing device of the vortex type hydrogen circulating pump comprises a pump machine shell, a driving motor is installed on the right side of the pump machine shell, and an output shaft of the driving motor penetrates through the right side wall of the pump machine shell and extends into the pump machine shell. A shaft seal shell is installed at the position, penetrating through the pump machine shell, of an output shaft of the driving motor. The passive heat dissipation mechanism comprises a plurality of heat dissipation fins installed on the outer side of the shaft seal shell, and the heat dissipation fins are evenly distributed on the shaft seal shell; and the active heat dissipation mechanism is matched with the passive heat dissipation mechanism and used for improving the overall heat dissipation effect, and the active heat dissipation mechanism comprises a plurality of axial flow fan blades installed on an output shaft of the driving motor. In the actual use of the sealing device, the heat dissipation fins are matched with the axial flow fan blades for use at the sealing position, the good heat dissipation effect is achieved, and the use stability of the sealing piece is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of shaft seal technology for circulating pumps, and in particular to a waterproof sealing device for the motor of a vortex hydrogen circulating pump. Background Technology

[0002] Against the backdrop of the rapid development of hydrogen energy utilization and fuel cell technology, the performance and reliability of the hydrogen circulation pump, as a key component of the hydrogen energy system, directly affect the operating efficiency and safety of the entire hydrogen energy system. The main function of the hydrogen circulation pump is to circulate hydrogen in the fuel cell stack to ensure the efficient utilization of hydrogen and the stable operation of the fuel cell stack.

[0003] In the design of traditional hydrogen circulation pumps, the connection between the motor output shaft and the pump housing is usually sealed with a shaft seal to prevent hydrogen leakage and the intrusion of external moisture, dust and other impurities. However, in practical applications, this type of shaft seal relies solely on passive heat dissipation, resulting in poor heat dissipation at the shaft seal. The heat generated by friction is difficult to dissipate effectively, causing the shaft seal and bearing parts to overheat, which affects the lifespan and operational stability of the shaft seal. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a waterproof sealing device for the motor of a vortex hydrogen circulation pump. In practical use, this sealing device utilizes heat dissipation fins in conjunction with axial flow fan blades at the sealing point, resulting in good heat dissipation and ensuring the stability of the sealing component.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A waterproof sealing device for the motor of a vortex hydrogen circulation pump includes a pump housing, a drive motor mounted on the right side of the pump housing, the output shaft of the drive motor penetrating the right side wall of the pump housing and extending into the interior of the pump housing, and a shaft seal housing installed at the point where the output shaft of the drive motor penetrates the pump housing; a passive heat dissipation mechanism including multiple heat dissipation fins mounted on the outside of the shaft seal housing, the multiple heat dissipation fins being evenly distributed on the shaft seal housing; and an active heat dissipation mechanism, which cooperates with the passive heat dissipation mechanism to improve the overall heat dissipation effect.

[0007] Preferably, the active cooling mechanism includes multiple axial fan blades mounted on the output shaft of the drive motor.

[0008] Preferably, the airflow generated by the rotation of the plurality of axial fan blades is from right to left.

[0009] Preferably, a connecting cylinder is installed on the right side of the pump housing, and multiple exhaust ports are opened on the outer side of the left side portion of the connecting cylinder. Four mounting slots are opened on the right side of the connecting cylinder, and an opening is opened on the left side of each mounting slot. Iron alloy is embedded in the inner wall of each mounting slot.

[0010] Preferably, each of the mounting slots is magnetically connected to a magnetic filter.

[0011] Preferably, two of the mounting slots are fitted with magnetic covers that cooperate with the magnetic filter.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] By combining the heat dissipation fins on the outside of the shaft seal housing with the axial fan blades in the active cooling mechanism, the heat dissipation performance is significantly improved, ensuring that the working temperature of the shaft seal area is effectively controlled and guaranteeing the stability of the shaft seal's use. At the same time, the use of a magnetic filter effectively intercepts dust, avoiding the impact of dust on the heat dissipation components and ensuring heat dissipation efficiency. In addition, when the filter needs to be cleaned, the downtime is short, improving the equipment's operating efficiency and maintenance convenience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a waterproof sealing device for the motor of a vortex hydrogen circulation pump proposed in this utility model.

[0015] Figure 2 for Figure 1 A structural diagram with the drive motor removed;

[0016] Figure 3 for Figure 2 A schematic diagram showing the magnetic filter and magnetic cover after separation;

[0017] Figure 4 for Figure 2 A schematic diagram of the structure for removing the connecting cylinder.

[0018] In the diagram: 1. Pump housing, 2. Connecting cylinder, 3. Exhaust vent, 4. Drive motor, 5. Mounting slot, 6. Magnetic filter, 7. Magnetic cover, 8. Port, 9. Shaft seal housing, 10. Heat dissipation fins, 11. Axial fan blades. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4A waterproof sealing device for the motor of a vortex hydrogen circulation pump includes a pump housing 1. A drive motor 4 is installed on the right side of the pump housing 1. The output shaft of the drive motor 4 passes through the right side wall of the pump housing 1 and extends into the interior of the pump housing 1. A shaft seal housing 9 is installed at the point where the output shaft of the drive motor 4 passes through the pump housing 1. The shaft seal housing 9 is existing technology and is a conventional shaft seal. It does not guarantee the sealing performance of the rotating connection, but it can guarantee the sealing performance of the connection between the drive motor 4 and the pump housing 1. Furthermore, the shaft seal housing 9 is made of a thermally conductive material, which can dissipate the heat generated by internal friction. Combined with the heat dissipation fins 10, the heat dissipation effect is better.

[0021] It also includes a passive heat dissipation mechanism, which includes multiple heat dissipation fins 10 installed on the outside of the shaft seal housing 9, and the multiple heat dissipation fins 10 are evenly distributed on the shaft seal housing 9.

[0022] It also includes an active cooling mechanism, which works in conjunction with the passive cooling mechanism to improve the overall cooling effect. The active cooling mechanism includes multiple axial fan blades 11 mounted on the output shaft of the drive motor 4. The airflow generated by the multiple axial fan blades 11 after rotation is from right to left. When the circulation pump is working, the multiple axial fan blades 11 will start to rotate and generate airflow.

[0023] The pump housing 1 has a connecting cylinder 2 installed on its right side. The left side of the connecting cylinder 2 has multiple exhaust ports 3. The right side of the connecting cylinder 2 has four mounting slots 5. Each mounting slot 5 has a through-hole 8 on its left side. Each mounting slot 5 has an iron alloy embedded in its inner wall. Each mounting slot 5 has a magnetic filter 6 magnetically connected to it. Two of the mounting slots 5 have magnetic cover plates 7 that cooperate with the magnetic filter 6. Furthermore, both the magnetic filter 6 and the magnetic cover plate 7 are magnetic, and their adjacent surfaces are attracted to each other.

[0024] In this invention, the heat dissipation fins 10 evenly distributed on the outer side of the shaft seal housing 9 enhance the passive heat dissipation effect, which helps to reduce the working temperature of the shaft seal area. To further improve the heat dissipation performance, when the circulation pump is working, the axial fan blades 11 rotate with the motor output shaft, generating airflow from right to left. By enhancing air convection, the heat dissipation efficiency of the shaft seal housing 9 and its surrounding area is effectively improved. Air enters from the two magnetic filters 6 without magnetic cover plates 7 and is discharged from multiple exhaust ports 3. The magnetic filters 6 can intercept dust, preventing dust from affecting the heat dissipation of the axial fan blades 11 and the heat dissipation fins 10. Furthermore, when it is necessary to clean the magnetic filters 6, simply remove the two magnetic filters 6 with more dust, then remove the two magnetic cover plates 7 and place them into the mounting slots 5 where the magnetic filters 6 have been removed. The entire circulation pump can then continue to work. At this time, the removed magnetic filters 6 can be cleaned. With this solution, the downtime when cleaning the filter part will not be too long.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A waterproof sealing device for the motor of a vortex hydrogen circulation pump, characterized in that, include: Pump housing (1), a drive motor (4) is installed on the right side of the pump housing (1), the output shaft of the drive motor (4) passes through the right side wall of the pump housing (1) and extends into the inside of the pump housing (1), and a shaft seal housing (9) is installed where the output shaft of the drive motor (4) passes through the pump housing (1); A passive heat dissipation mechanism, comprising multiple heat dissipation fins (10) mounted on the outside of the shaft seal housing (9), wherein the multiple heat dissipation fins (10) are evenly distributed on the shaft seal housing (9); An active heat dissipation mechanism, which works in conjunction with a passive heat dissipation mechanism, is used to improve the overall heat dissipation effect.

2. The waterproof sealing device for the motor of a vortex hydrogen circulation pump according to claim 1, characterized in that, The active cooling mechanism includes multiple axial fan blades (11) mounted on the output shaft of the drive motor (4).

3. The waterproof sealing device for the motor of a vortex hydrogen circulation pump according to claim 2, characterized in that, The airflow generated by the rotation of the multiple axial fan blades (11) is from right to left.

4. The waterproof sealing device for the motor of a vortex hydrogen circulation pump according to claim 1, characterized in that, A connecting cylinder (2) is installed on the right side of the pump housing (1). Multiple exhaust ports (3) are opened on the outer side of the left side of the connecting cylinder (2). Four mounting slots (5) are opened on the right side of the connecting cylinder (2). An opening (8) is opened on the left side of each mounting slot (5). Iron alloy is embedded on the inner wall of each mounting slot (5).

5. The waterproof sealing device for the motor of a vortex hydrogen circulation pump according to claim 4, characterized in that, Each of the mounting slots (5) is magnetically connected to a magnetic filter screen (6).

6. The waterproof sealing device for the motor of a vortex hydrogen circulation pump according to claim 5, characterized in that, Two of the mounting slots (5) are fitted with magnetic cover plates (7) that cooperate with the magnetic filter screen (6).

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