Double-layer spacer sleeve heat conduction oil system structure
By designing a double-layer isolation sleeve structure on the magnetic pump, using thermal oil to flow in the closed cavity for cooling, the problem of heat accumulation of the magnetic pump isolation sleeve is solved, and the durability of the isolation sleeve and the stable operation of the magnetic pump are achieved.
Patent Information
- Application Number
- CN202421762366.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-07-24
AI Technical Summary
During the working process of existing magnetic pumps, the heat generated by cutting the inner magnetic rotor, the outer magnetic rotor and the isolation sleeve is difficult to effectively take away, resulting in the performance of the isolation sleeve being affected.
A double-layer isolation sleeve structure is adopted, by setting open holes and joint components on the pump cover, the heat conducting oil flows in the closed cavity for cooling treatment, reducing the heat accumulation of the isolation sleeve.
It effectively reduces the damage rate of the isolation sleeve, ensures the normal operation of the magnetic pump, simplifies the structure, and is easy to manufacture and install.
Smart Images
Figure CN223177818U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a heat transfer oil system of a magnetic pump, in particular to a heat transfer oil system structure with a double-layer isolation sleeve. Background Technique
[0002] During the working process of a magnetic pump, due to the cutting of the inner magnetic rotor, the outer magnetic rotor and the isolation sleeve, the formed magnetic induction lines cause heat to be generated in the cavity between the isolation sleeve and the inner magnetic rotor. The prior art is to take away this part of the heat through the internal circulation path of the pump, but there will still be some heat remaining, which will affect the performance of the isolation sleeve after a long time.
[0003] In order to solve the above problems, we propose a heat transfer oil system structure with a double-layer isolation sleeve. Content of the Utility Model
[0004] The purpose of the utility model is to provide a heat transfer oil system structure with a double-layer isolation sleeve to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat transfer oil system structure with a double-layer isolation sleeve, including a first isolation sleeve, a second isolation sleeve, a shaft system, a bearing box device and a pump cover; an opening is provided on the pump cover; the second isolation sleeve is connected to the outer side surface of the first isolation sleeve; a closed cavity is formed between the inner side surface of the second isolation sleeve and the outer side surface of the first isolation sleeve; the opening on the pump cover is communicated with the closed cavity; the shaft system is arranged inside the first isolation sleeve; the first isolation sleeve and the second isolation sleeve are arranged inside the bearing box device; the pumping program device is connected to one end of the pump cover.
[0006] Preferably, a joint assembly is arranged at the position of the opening on the pump cover.
[0007] Preferably, the joint assembly is connected to the pump cover through a gasket.
[0008] Preferably, both the first isolation sleeve and the second isolation sleeve are smooth cylindrical.
[0009] Preferably, the connection between the first isolation sleeve and the second isolation sleeve is a detachable connection.
[0010] Compared with the prior art, the beneficial effect of the utility model is: The heat transfer oil system structure with a double-layer isolation sleeve has a simple structure. Compared with a conventional single-layer isolation sleeve magnetic pump, it has no complex structure, is convenient for manufacturing and installation. The damage rate of the isolation sleeve is greatly reduced, providing a strong guarantee for the normal operation of the magnetic pump. Description of the Drawings
[0011] Figure 1 It is a schematic structural diagram of the utility model;
[0012] Figure 2 is Figure 1 an enlarged schematic view of the first isolation sleeve structure in
[0013] In the figure: 1 - the first isolation sleeve, 2 - the second isolation sleeve, 3 - the joint assembly, 4 - the shafting, 5 - the bearing housing device, 6 - the gasket. Specific embodiments
[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0015] Please refer to Figure 1 and Figure 2 , the present invention provides a technical solution: a double-layer isolation sleeve heat-conducting oil system structure, including a first isolation sleeve 1, a second isolation sleeve 2, a shafting 4, a bearing housing device 5 and a pump cover; an opening is provided on the pump cover; the second isolation sleeve 2 is connected to the outer side surface of the first isolation sleeve 1; a closed cavity is formed between the inner side surface of the second isolation sleeve 2 and the outer side surface of the first isolation sleeve 1; the opening on the pump cover communicates with the closed cavity; the shafting 4 is arranged inside the first isolation sleeve 1; the first isolation sleeve 1 and the second isolation sleeve 2 are arranged inside the bearing housing device 5; the pumping program device 5 is connected to one end of the pump cover.
[0016] It should be noted that when the first isolation sleeve 1 in the present application is damaged and cannot play an isolation effect, the pump body can still work normally. At this time, the second isolation sleeve 2 plays the role of a single-layer isolation sleeve. The liquid in the pump body and the heat-conducting oil can be mixed to a certain extent.
[0017] Furthermore, a joint assembly 3 is arranged at the position of the opening on the pump cover. The joint assembly 3 adopts a quick connector, which is convenient for various external devices.
[0018] Furthermore, the joint assembly 3 is connected to the pump cover through a gasket 6. The gasket 6 can increase the sealing performance.
[0019] Furthermore, both the first isolation sleeve 1 and the second isolation sleeve 2 are smooth cylindrical.
[0020] Furthermore, the connection between the first isolation sleeve 1 and the second isolation sleeve 2 is a detachable connection.
[0021] Thermal oil has the properties of resistance to thermal cracking and chemical oxidation, good heat transfer efficiency, fast heat dissipation, and excellent thermal stability. As an industrial oil heat transfer medium, thermal oil has the following characteristics: Under almost atmospheric pressure conditions, a very high operating temperature can be obtained. That is, it can greatly reduce the operating pressure and safety requirements of high-temperature heating systems, improving the reliability of the systems and equipment; It can meet the process requirements of heating and cooling at different temperatures within a wider temperature range, or simultaneously achieve the process requirements of high-temperature heating and low-temperature cooling with the same thermal oil in the same system. That is, it can reduce the complexity of the system and operation; The water treatment system and equipment are omitted, improving the system thermal efficiency and reducing the maintenance workload of equipment and pipelines. That is, it can reduce the initial investment and operating costs of the heating system; In the case of system leakage caused by accident reasons, when thermal oil meets an open flame, combustion may occur, which is a problem existing in thermal oil systems compared with steam systems. However, under the condition of no leakage, since the thermal oil system operates under low-pressure conditions, its operating safety is higher than that of water and steam systems. Compared with molten salt, another type of high-temperature heat transfer medium, when the operating temperature is above 400 °C, molten salt has an absolute advantage over thermal oil in terms of the price and service life of the heat transfer medium, but is at an obvious disadvantage in other aspects, especially in terms of the convenience of system operation. Its chemical properties are relatively stable and it is not as easy to catch fire and burn as light oil.
[0022] From the perspective of use and safety, its main characteristics are: within the allowable temperature range, it has good thermal stability, less coking, and a longer service life; within the allowable temperature range, it has good thermal conductivity, fluidity, and pumpability; it is low-toxic and odorless, does not corrode equipment, and has little impact on the environment; it has a relatively low freezing point, a relatively high boiling point, and a relatively low content of low-boiling components; within the allowable temperature range, its vapor pressure is not high and the evaporation loss is small; when the temperature is higher than 70 °C, it will be strongly oxidized when in contact with air. Its heated working system needs to be sealed, and it is only allowed to be in contact with air at temperatures below 70 °C; its volume expands significantly after heating, and the expansion rate is much greater than that of water. When the temperature rises by 100 °C, the volume expansion rate can reach 8% - 10%; it will undergo cracking or condensation when overheated, and coke or carbon will accumulate in containers and pipelines; when water or low-boiling components are mixed in, the vapor pressure will increase significantly after heating; its flash point, ignition point, and auto-ignition point are all relatively high, and it will not catch fire and burn under the allowable temperature and closed state; According to the regions where users live and the equipment operating environment, it is recommended to select thermal oil with appropriate low-temperature performance.
[0023] The joint assembly 3 above the pump cover transports heat-conducting oil into the second isolation sleeve 2 through an external device, and the heat-conducting oil enters the closed cavity of the isolation sleeve formed by the first isolation sleeve 1 and the second isolation sleeve 2. Then, the heat-conducting oil in the closed cavity of the isolation sleeve flows out through the joint assembly 3 below to cool the isolation sleeve of the magnetic pump. The first isolation sleeve 1 and the second isolation sleeve 2 generate heat by cutting the magnetic induction lines formed by the inner and outer magnetic rotors, and the heat is dissipated by the flow of the heat-conducting oil in the closed cavity of the isolation sleeve formed by themselves.
[0024] Working principle:
[0025] The present utility model provides a double-layer isolation sleeve heat-conducting oil system structure for a magnetic pump. The joint assembly 3 above the pump cover transports heat-conducting oil into the second isolation sleeve 2 through an external device, and the heat-conducting oil enters the closed cavity of the isolation sleeve formed by the first isolation sleeve 1 and the second isolation sleeve 2. Then, the heat-conducting oil in the closed cavity of the isolation sleeve flows out through the joint assembly 3 below to cool the isolation sleeve of the magnetic pump. The first isolation sleeve 1 and the second isolation sleeve 2 generate heat by cutting the magnetic induction lines formed by the inner and outer magnetic rotors, and the heat is dissipated by the flow of the heat-conducting oil in the closed cavity of the isolation sleeve formed by themselves. This greatly reduces the damage rate of the isolation sleeve and provides a strong guarantee for the normal operation of the magnetic pump.
[0026] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0027] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A structure of a double-layer isolation sleeve heat-conducting oil system, characterized in that, It includes a first isolation sleeve (1), a second isolation sleeve (2), a shafting (4), a bearing housing device (5) and a pump cover; an opening is provided on the pump cover; the second isolation sleeve (2) is connected to the outer side surface of the first isolation sleeve (1); a closed cavity is formed between the inner side surface of the second isolation sleeve (2) and the outer side surface of the first isolation sleeve (1); the opening on the pump cover communicates with the closed cavity; the shafting (4) is arranged inside the first isolation sleeve (1); the first isolation sleeve (1) and the second isolation sleeve (2) are arranged inside the bearing housing device (5); the bearing housing device (5) is connected to one end of the pump cover.
2. The structure of a double-layer isolation sleeve heat-conducting oil system according to claim 1, wherein, A joint assembly (3) is arranged at the position of the opening on the pump cover.
3. The structure of a double-layer isolation sleeve heat transfer oil system according to claim 2, wherein, The joint assembly (3) is connected to the pump cover through a gasket (6).
4. A double-layer isolation sleeve heat transfer oil system structure according to claim 1, characterized in that Both the first isolation sleeve (1) and the second isolation sleeve (2) are smooth cylindrical.
5. The structure of a double-layer isolation sleeve heat transfer oil system according to claim 1, characterized in that, The connection between the first isolation sleeve (1) and the second isolation sleeve (2) adopts a detachable connection.