Heat dissipation structure for high-temperature magnetic drive pump
By designing a heat dissipation structure including a cooling fan and air overflow hole in a high-temperature magnetic pump, the problem of heat accumulation in the high-temperature magnetic pump is solved, and a more stable operation and extended service cycle is achieved.
Patent Information
- Application Number
- CN202322803840.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-10-19
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2033-10-19
AI Technical Summary
The existing high-temperature magnetic pumps are prone to accumulate heat, resulting in temperature rise of the bearing box, shaft deformation, concentricity and other reasons. The rotor components will have locking problems, which will not be able to operate continuously, and the stable operation of the on-site unit cannot be guaranteed.
A heat dissipation structure including a pump body, an external magnetic rotor hub, a connecting frame, an insulating disk and a heat dissipation fan are adopted. The airflow is driven by the cooling fan, and the air flow is used to utilize the design of the air overflow hole, air inlet and outlet to achieve air cooling treatment of the external magnetic rotor and isolation sleeve part, avoid heat accumulation and isolate heat conduction through the heat insulation disc.
It effectively solves the problems of heat accumulation and conduction, reduces the temperature on the bearing box side, extends the use cycle of the high-temperature magnetic pump, and ensures the continuous continuous operation of the pump and the stable operation of the on-site unit.
Smart Images
Figure CN222457874U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of magnetic pumps, and in particular relates to a heat dissipation structure for a high-temperature magnetic pump. Background Art
[0002] In the field of fine chemicals in China, there is no unified standard, so it is relatively messy, especially when it comes to the transportation of chemical raw materials under some special working conditions. When transporting materials such as ethylene oxide, propylene oxide, polyether, etc., users often hesitate between choosing magnetic pumps and chemical centrifugal pumps with mechanical seals. In contrast, these materials often have complex physical and chemical properties, the temperature is generally 0-250℃, the viscosity is generally 130-200CP, and the materials will be partially vaporized. If a chemical process pump is used in this working condition, a corresponding solution must be configured for the mechanical seal. It can also be used, but the solution is complicated, and the user on-site users may not be able to operate accurately. Improper operation will cause damage to the mechanical seal and auxiliary systems, and the site must provide the pressure water source and industrial raw materials such as nitrogen required by the mechanical seal solution. Some sites do not have this condition at all, so some users will choose high-temperature magnetic pumps to transport such materials. Magnetic pumps do not require additional auxiliary systems, and naturally do not require any equipment to be provided on site. All the required equipment is integrated in the pump unit itself, reducing the difficulty of on-site operation and maintenance. This increases the design and manufacturing requirements of the high-temperature magnetic pump itself. Under such high-temperature transportation conditions, it is very difficult to operate it stably for a long time. The premise of stability is to dissipate the heat generated during material transportation rather than accumulate heat, otherwise it will lead to bearing box temperature rise, shaft deformation, concentricity impact, and rotor parts will lock. Utility Model Content
[0003] The purpose of the utility model is to solve the problems that the existing high-temperature magnetic pumps are prone to heat accumulation, which leads to the heating of the bearing box, shaft deformation, concentricity impact, etc., and the rotor parts may lock, making it impossible to operate continuously and ensure the stable operation of the on-site unit. A heat dissipation structure for a high-temperature magnetic pump is proposed.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heat dissipation structure for a high-temperature magnetic pump, comprising a pump body, an external magnetic rotor hub is arranged in the pump body, a connecting frame is arranged on the pump body, a heat insulation plate is connected to the connecting frame, a cooling fan is arranged on one side of the external magnetic rotor hub, and an air inlet and an air outlet are arranged on the connecting frame.
[0005] As a further description of the above technical solution:
[0006] The heat insulation disk is located at the rear side of the outer magnetic rotor hub.
[0007] As a further description of the above technical solution:
[0008] The outer magnetic rotor hub is provided with a plurality of air flow holes.
[0009] As a further description of the above technical solution:
[0010] The air inlet is located at the lower opening of the connecting frame.
[0011] As a further description of the above technical solution:
[0012] The number of the air flow holes is 8, and the 8 air flow holes 8 are evenly arranged on the outer magnetic rotor hub.
[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0014] 1. In the utility model, because the material being transported is high-temperature material, the pump body is also provided with a heat preservation structure for cooling treatment as in the conventional method. The difference is that the outer magnetic rotor part and the isolation sleeve part are cooled by air cooling. From the general assembly drawing, it can be seen that the air inlet position is the opening position at the lower part of the connecting frame. Through the rotation of the cooling fan, the outside wind enters the gap between the outer magnetic rotor and the isolation sleeve from the air inlet of the connecting frame, and then enters the cooling fan area through the eight large holes opened at the hub of the outer magnetic rotor. The cooling fan extracts the heat from the inlet low-pressure area to the small hole on the connecting frame to exhaust the hot air side (this hole is in the corresponding position of the heat sink) through the fan blades, so that the heat completes the cycle and will not accumulate at the outer magnetic rotor and the isolation sleeve. At the same time, the heat insulation plate can well isolate part of the heat from being conducted to the bearing housing side. This solves the problem of heat accumulation and conduction to the bearing housing side, and can be continuously recycled.
[0015] 2. In the utility model, by adding a cooling fan, the airflow is driven to circulate the ambient temperature air through the operation of the fan. The heat generated by the outer magnetic rotor and the isolation sleeve and the inner magnetic rotor during the operation of the unit is taken away together, and the existing structure is used for processing in a very natural way.
[0016] 3. In the utility model, the original connecting frame is used, which is both the air duct inlet and the air duct outlet, and the overall weight of the connecting frame is reduced. Through different hole designs, the circulation of air from the inlet air duct opening to the outlet air duct hole is completed, and the power source is the installed cooling fan.
[0017] 4. In the utility model, the outer magnetic rotor hub adds air flow holes at the original outer magnetic rotor hub. The suction force generated during the operation of the cooling fan must come from the air channel at the connecting frame. Therefore, air flow holes must be designed at the outer magnetic rotor hub to transport the hot air out through the cooling fan, while also reducing the weight of the outer magnetic rotor hub.
[0018] 5. In the utility model, through the improvement of the heat dissipation structure, the temperature of the bearing box side during operation is reduced by 10°C compared with before. The temperature of the high-temperature material can significantly reduce the high temperature generated by the inner and outer magnetic rotors, magnetic materials, and bearings inside the bearing box, greatly delaying the service life of the high-temperature magnetic pump. The high-temperature magnetic pump can continue to operate continuously without problems, effectively ensuring the stable operation of the on-site unit. The service life is much longer than that of the conventional high-temperature magnetic pump, which fully meets the on-site use requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 The figure is an assembly diagram of a heat dissipation structure for a high-temperature magnetic pump.
[0021] Figure 2 A detailed diagram of a heat dissipation structure for a high-temperature magnetic pump.
[0022] Figure 3 The figure is a heat dissipation air circulation diagram of a heat dissipation structure for a high-temperature magnetic pump.
[0023] Figure 4 The present invention provides a cross-sectional view and a front view of a heat dissipation fan in a heat dissipation structure for a high-temperature magnetic pump.
[0024] Figure 5 The figure is a schematic diagram of the structure of a connecting frame in a heat dissipation structure for a high-temperature magnetic pump.
[0025] Figure 6 for Figure 5 Cross-sectional view of BB.
[0026] Figure 7 for Figure 6 Cross-sectional view of CC.
[0027] Figure 8 The present invention provides a cross-sectional view and a front view of an outer magnetic rotor hub in a heat dissipation structure for a high-temperature magnetic pump.
[0028] Legend:
[0029] 1- pump body; 2- external magnetic rotor hub; 3- connecting frame; 4- heat insulation plate; 5- cooling fan; 6- air inlet; 7- air outlet; 8- air flow hole. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0034] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0036] See also Figure 1-8 The utility model provides a technical solution: a heat dissipation structure for a high-temperature magnetic pump, comprising a pump body 1, an external magnetic rotor hub 2 is arranged in the pump body 1, a connecting frame 3 is arranged on the pump body 1, a heat insulation plate 4 is connected to the connecting frame 3, a cooling fan 5 is arranged on one side of the external magnetic rotor hub 2, and an air inlet 6 and an air outlet 7 are arranged on the connecting frame 3.
[0037] The heat insulation disk 4 is located at the rear side of the outer magnetic rotor hub 2 .
[0038] The outer magnetic rotor hub 2 is provided with a plurality of air flow holes 8 .
[0039] The air inlet 6 is located at the lower opening of the connecting frame 3 .
[0040] The number of the air flow holes 8 is eight, and the eight air flow holes 8 are evenly arranged on the outer magnetic rotor hub 2 .
[0041] Working principle: The outer magnetic rotor part and the isolation sleeve part are cooled by air. From the general assembly drawing, it can be seen that the air inlet is located at the opening of the lower part of the connecting frame. Through the rotation of the cooling fan, the outside wind enters the gap between the outer magnetic rotor and the isolation sleeve from the air inlet of the connecting frame, and then enters the cooling fan area through the eight large holes opened at the hub of the outer magnetic rotor. The cooling fan extracts the heat from the inlet low-pressure area to the hot air exhaust side of the small hole opened at the connecting frame (this hole is in the corresponding position of the heat sink) through the fan blades, so that the heat completes the cycle and will not accumulate in the outer magnetic rotor and the isolation sleeve. At the same time, the heat insulation plate can well isolate part of the heat from being conducted to the bearing box side. This solves the problem of heat accumulation and conduction to the side of the bearing box, and can be continuously recycled. Through the improvement of the heat dissipation structure, the temperature of the bearing box side during operation is reduced by 10°C compared with before. The temperature of the high-temperature material can significantly reduce the high temperature generated by the inner and outer magnetic rotors, magnetic materials, and bearings inside the bearing box, greatly delaying the service life of the high-temperature magnetic pump. The high-temperature magnetic pump can continue to operate continuously without problems, effectively ensuring the stable operation of the on-site unit. The service life is much longer than that of the conventional high-temperature magnetic pump, which fully meets the on-site use requirements.
[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A heat dissipation structure for a high temperature magnetic pump, characterized in that: The invention comprises a pump body (1), wherein an external magnetic rotor hub (2) is arranged inside the pump body (1), a connecting frame (3) is arranged on the pump body (1), a heat insulation plate (4) is connected to the connecting frame (3), a cooling fan (5) is arranged on one side of the external magnetic rotor hub (2), an air inlet (6) and an air outlet (7) are arranged on the connecting frame (3), and the heat insulation plate (4) is located at the rear side of the external magnetic rotor hub (2); a plurality of air flow holes (8) are arranged on the external magnetic rotor hub (2); and the air inlet (6) is located at the lower opening of the connecting frame (3).
2. A heat dissipation structure for a high temperature magnetic pump according to claim 1, characterized in that: The number of the air flow holes (8) is eight, and the eight air flow holes (8) are evenly arranged on the outer magnetic rotor hub (2).