Magnetic linked high temperature reuse pump

By using a high-temperature recycle pump with magnetic linkage and an all-metal sealed structure, the problems of fan aging and seal failure in high-temperature environments in existing technologies have been solved, achieving isolation between the motor and high-temperature gas, and improving the system's energy utilization and operation and maintenance efficiency.

CN224496858UActive Publication Date: 2026-07-14NINGBO SOFCMAN ENERGY TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO SOFCMAN ENERGY TECH CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing solid oxide fuel cell systems' fuel exhaust gas recycling fans are prone to aging and seal failure in high-temperature environments, leading to motor burnout and gas leakage. They cannot be directly used for the recycling of high-temperature unreacted hydrogen, resulting in energy waste.

Method used

The high-temperature recycle pump adopts magnetic linkage, which realizes non-contact linkage between the fan assembly and the motor assembly through the magnetic coupling assembly. Combined with the all-metal sealed structure and transparent observation cover, the motor is isolated from the high-temperature gas and supports continuous operation in an environment of 180°C.

Benefits of technology

It achieves physical isolation between the motor and the high-temperature gas, avoids seal failure, improves the system's energy utilization rate, reduces operation and maintenance costs, and supports real-time monitoring of internal status.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224496858U_ABST
Patent Text Reader

Abstract

A kind of magnetic linkage high temperature reuse pump, it is characterized by including base, fan assembly, motor assembly, magnetic coupling assembly, sealing plate assembly, the top of the left and right ends of base is fixed with fan assembly and motor assembly respectively, magnetic coupling assembly is sleeved in sealing plate assembly, fan assembly and motor assembly are driven each other by magnetic coupling assembly, realize that motor assembly and fan assembly are linked in non-contact condition, it is combined with sealing plate assembly, to avoid fan and motor direct contact, so as to reduce the influence of high temperature on motor, and service life is longer, simple structure, convenient operation.
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Description

Technical Field

[0001] This utility model relates to the field of pumps, and in particular to a magnetically linked high-temperature reuse pump. Background Technology

[0002] Currently, fuel exhaust gas recycling in solid oxide fuel cell (SOFC) systems primarily relies on ambient temperature blowers. These blowers employ a direct-drive motor-impeller structure, using ordinary rubber or plastic as sealing materials, and their operating temperature typically does not exceed 80°C. Their operating principle involves the motor directly driving the impeller to deliver gas; while structurally simple, they cannot withstand high temperatures, and existing technology suffers from the following drawbacks:

[0003] (1) Motor overheating failure: The insulation layer of the motor is prone to aging in a high-temperature environment of 180℃, which leads to burnout;

[0004] (2) Sealing failure: Ordinary sealing materials deform / decompose at high temperatures, causing gas leakage;

[0005] (3) Application limitations: It cannot be directly used in SOFC fuel exhaust gas (including high-temperature unreacted hydrogen) recycling systems, resulting in energy waste. Utility Model Content

[0006] This utility model addresses the problems of existing technologies by proposing a high-temperature magnetic linkage high-temperature reuse pump. Combined with a sealing plate assembly, it avoids direct contact between the fan and the motor, thereby reducing the impact of high temperature on the motor, and extending its service life. It also features a simple structure and convenient operation.

[0007] The technical solution of this utility model is: a magnetically linked high-temperature recycling pump, characterized in that it includes a base, a fan assembly, a motor assembly, a magnetic coupling assembly, and a sealing plate assembly. The fan assembly and the motor assembly are respectively fixed to the top of the left and right ends of the base. The magnetic coupling assembly is sleeved inside the sealing plate assembly. The fan assembly and the motor assembly can drive each other through the magnetic coupling assembly, so that the motor assembly and the fan assembly can be linked together without contact.

[0008] Furthermore: the magnetic coupling assembly is formed by the magnetic attraction of two T-shaped cross-section fan magnetic couplings and motor magnetic couplings.

[0009] Furthermore, the sealing plate assembly includes a motor sealing plate and a fan sealing plate. Multiple support rods are fixed between the inner walls of the motor sealing plate and the fan sealing plate, and a transparent observation cover is fixed on the outer wall of the motor sealing plate and the fan sealing plate to achieve fixed support and convenient observation.

[0010] Furthermore: the fan assembly includes a fan body, a fan cover plate fixed in the output direction of the fan body, a connecting part on the fan cover plate, and a fixing part on the corresponding fan body, which are fixed to each other by bolts.

[0011] Furthermore, the output end of the main body of the fan is provided with a drive shaft, on which a second bearing and a limiting sleeve are sequentially fitted. The limiting sleeve and the second bearing cooperate with each other to realize the translation of the magnetic coupling.

[0012] Furthermore, the motor assembly includes a motor body, a motor cover plate fixed in the output direction of the motor body, a connecting part on the motor cover plate, and a fixing part on the corresponding motor body, which are fixed to each other by bolts.

[0013] Furthermore: The output end of the motor body is provided with an output shaft, on which a first bearing and a limiting sleeve are sequentially fitted. The limiting sleeve and the first bearing cooperate with each other to realize the translation of the magnetic coupling.

[0014] Furthermore, the magnetic coupling is a hollow cylinder with a reduced diameter wall and a fixing hole. Bolts pass through the fixing hole and cooperate with the output shaft in the motor assembly and the transmission shaft in the fan assembly to achieve locking.

[0015] Furthermore: The base has a base positioning hole at the top of one end, and a corresponding fan positioning hole is provided at the bottom of the fan body. Bolts pass through the base positioning hole and are fixed to the fan positioning hole to fix the fan body.

[0016] Finally: The other end of the base is provided with a sliding groove, on which multiple U-shaped support frames are fixedly fixed and can slide back and forth. The bottom of the support frame is provided with a lower positioning hole. Bolts are passed through the sliding groove and fixed to each other with the lower positioning hole of the support frame, and can be adjusted back and forth along the sliding groove. The top of the support frame is provided with an upper positioning hole. Bolts are passed through the upper positioning hole of the support frame and connected to the positioning block on the bottom of the motor body for connection and fixation.

[0017] Compared with existing technologies, the technical advantages of this product are: physical isolation between the motor and high-temperature gas, supporting continuous operation in an environment of 180°C, temperature-sealing materials + all-metal sealing structure to avoid the risk of fuel exhaust gas leakage, thus enabling direct reuse of unreacted hydrogen in SOFC high-temperature exhaust gas, improving system energy utilization, transparent protective cover design for easy real-time monitoring of internal status, reducing operation and maintenance costs, and the high-temperature reuse pump can be adjusted forward and backward for easy installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the magnetic coupling assembly.

[0020] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the exploded structure of this utility model (from another angle);

[0022] In the diagram, 1. Base, 2. Fan assembly, 3. Motor assembly, 4. Magnetic coupling assembly, 5. Sealing plate assembly, 6. Fan sealing plate, 7. Connecting part, 8. Fixing part, 9. Drive shaft, 10. Second bearing, 11. Limiting sleeve, 12. First bearing, 13. Motor body, 14. Motor sealing plate, 15. Output shaft, 16. Fixing hole, 17. Fan magnetic coupling, 18. Motor magnetic coupling, 19. Support rod, 20. Transparent observation cover, 21. Base positioning hole, 22. Fan positioning hole, 23. Slide groove, 24. Support frame, 25. Upper positioning hole of support frame, 26. Positioning block, 27. Fan body, 28. Lower positioning hole of support frame. Detailed Implementation

[0023] The embodiments of this utility model patent will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model patent, but should not be construed as limiting its scope. In the description of this utility model patent, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model patent. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] like Figures 1 to 4A magnetically linked high-temperature recycling pump includes main components such as a base 1, a fan assembly 2, a motor assembly 3, a magnetic coupling assembly 4, and a sealing plate assembly 5. The fan assembly 2 and the motor assembly 3 are respectively fixed to the top of the left and right ends of the base 1. The magnetic coupling assembly 4 is sleeved inside the sealing plate assembly 5. The fan assembly 2 and the motor assembly 3 are mutually driven through the magnetic coupling assembly 4, so that the motor assembly 3 and the fan assembly 2 can be linked together without contact.

[0027] The fan assembly 2 includes a fan body 27. A fan sealing plate 6 is fixed to the output direction of the fan body 27. The fan sealing plate 6 is a hollow cylindrical sleeve. Multiple connecting parts 7 are distributed on the outer periphery of the fan sealing plate 6. Correspondingly, the fan body 27 has a fixing part 8, which is annular in shape. Both the connecting parts 7 and the fixing parts 8 have mating connecting holes and are fixed to each other by bolts. The output end of the fan body 27 is provided with a drive shaft 9. A second bearing 10 and a limiting sleeve 11 are sequentially sleeved on the drive shaft 9. The limiting sleeve 11 and the second bearing 10 cooperate with each other to constrain the translation of the fan magnetic coupling 17.

[0028] The motor assembly 3 includes a motor body 13. A motor sealing plate 14 is fixed to the output direction of the motor body 13. The motor sealing plate 14 is a hollow disc structure with a reduced-diameter connecting hole inside. A connecting part 7 is provided on the outer periphery of the motor sealing plate 14, and a fixing part 8 is provided on the corresponding outer periphery of the motor body 13. The connecting part 7 and the fixing part 8 are preferably located on the outer walls of the motor sealing plate 14 and the motor body 13, and have connecting holes, and are fixed to each other by bolts. An output shaft 15 is provided at the output end of the motor body 13. A first bearing 12 and a limiting sleeve 11 are sequentially fitted on the output shaft 15. The limiting sleeve 11 and the first bearing 12 cooperate with each other to constrain the translation of the magnetic coupling 18 of the motor.

[0029] The magnetic coupling assembly 4 is composed of two magnetic couplings 17 and 18 with a cross-section of "T" shape, which are connected by magnetic attraction. The magnetic couplings 17 and 18 are hollow cylinders with a reduced diameter wall and a fixing hole 16. Bolts pass through the fixing hole 16 and cooperate with the output shaft 15 of the motor assembly 3 and the transmission shaft 9 of the fan assembly 2 to achieve locking.

[0030] The sealing plate assembly 5 includes a motor sealing plate 14 and a fan sealing plate 6. Multiple support rods 19 are fixed between the inner walls of the motor sealing plate 14 and the fan sealing plate 6. A transparent observation cover 20 is fixed on the outer wall of the motor sealing plate 14 and the fan sealing plate 6. The support rods 19 are preferably four slender cylinders with a horizontal groove in the middle of the cylinder to achieve the function of fixed support and facilitate observation of the working status of the magnetic coupling assembly 4.

[0031] The base 1 has two rows of base positioning holes 21 on its top, and the corresponding fan body 2 has fan positioning holes 22 on its bottom. Bolts pass through the base positioning holes 21 and are fixed to the fan positioning holes 22 to secure the fan body 2. The other end of the base 1 has a sliding groove 23, on which multiple U-shaped support frames 24 are slidably fixed. The bottom of each support frame 24 has a lower support frame positioning hole 28. Bolts pass through the sliding groove 23 and are fixed to the lower support frame positioning hole 28, and can be adjusted back and forth along the sliding groove 23. Preferably, there are two support frames 24. The top of each support frame 24 has an upper support frame positioning hole 25. Bolts pass through the upper support frame positioning hole 25 and are connected to the connecting hole on the positioning block 26 at the bottom of the motor body 13 for fixation.

Claims

1. A magnetically linked high-temperature reuse pump, characterized in that... It includes a base, a fan assembly, a motor assembly, a magnetic coupling assembly, and a sealing plate assembly. The fan assembly and the motor assembly are fixed to the top of the left and right ends of the base, respectively. The magnetic coupling assembly is installed inside the sealing plate assembly. The fan assembly and the motor assembly can drive each other through the magnetic coupling assembly, so that the motor assembly and the fan assembly can be linked together without contact.

2. The high-temperature reuse pump according to claim 1, characterized in that... The magnetic coupling assembly consists of two T-shaped cross-section fan magnetic couplings and motor magnetic couplings that are magnetically attracted to each other.

3. The high-temperature reuse pump according to claim 1, characterized in that... The sealing plate assembly includes a motor sealing plate and a fan sealing plate. Multiple support rods are fixed between the inner walls of the motor sealing plate and the fan sealing plate. A transparent observation cover is fixed on the outer wall of the motor sealing plate and the fan sealing plate to achieve fixed support and convenient observation.

4. The high-temperature reuse pump according to claim 1, characterized in that... The fan assembly includes a fan body, a fan cover plate fixed in the output direction of the fan body, a connecting part on the fan cover plate, and a fixing part on the corresponding fan body, which are fixed to each other by bolts.

5. The high-temperature reuse pump according to claim 4, characterized in that... The output end of the main body of the fan is provided with a drive shaft, on which a second bearing and a limiting sleeve are sequentially fitted. The limiting sleeve and the second bearing cooperate with each other to realize the translation of the magnetic coupling.

6. The high-temperature reuse pump according to claim 1, characterized in that... The motor assembly includes a motor body, a motor cover plate fixed in the output direction of the motor body, a connecting part on the motor cover plate, and a fixing part on the corresponding motor body, which are fixed to each other by bolts.

7. The high-temperature reuse pump according to claim 6, characterized in that... The motor body has an output shaft at its output end. A first bearing and a limiting sleeve are sequentially fitted onto the output shaft. The limiting sleeve and the first bearing cooperate with each other to constrain the translation of the magnetic coupling.

8. The high-temperature reuse pump according to claim 1, characterized in that... The magnetic coupling is a hollow cylinder with a reduced diameter wall and a fixing hole. Bolts pass through the fixing hole and cooperate with the output shaft in the motor assembly and the transmission shaft in the fan assembly to achieve locking.

9. The high-temperature reuse pump according to claim 1, characterized in that... The base has two rows of positioning holes at one end, and the bottom of the corresponding fan body has fan positioning holes. Bolts pass through the positioning holes of the base and are fixed to the fan positioning holes to fix the fan body.

10. The high-temperature reuse pump according to claim 1, characterized in that... The other end of the base is provided with a sliding groove, on which multiple U-shaped support frames are fixedly fixed and can slide back and forth. The bottom of the support frame is provided with a lower positioning hole. Bolts pass through the sliding groove and are fixed to each other with the lower positioning hole of the support frame, and can be adjusted back and forth along the sliding groove. The top of the support frame is provided with an upper positioning hole. Bolts pass through the upper positioning hole of the support frame and are connected to the positioning block on the bottom of the motor body for connection and fixation.