Self-cooling device of magnetic suspension vacuum pump

Abstract

The utility model discloses a magnetic suspension vacuum pump self-cooling device which comprises a base and a magnetic suspension vacuum pump arranged at the top end of the base, a shell is arranged on the periphery of the magnetic suspension vacuum pump, an inlet pipe is arranged at one end of the shell, and a cooling pipe is arranged at the end, away from the shell, of the inlet pipe. A backflow pipe is arranged at one end of the cooling pipe, and the end, away from the cooling pipe, of the backflow pipe is connected with the other end of the shell. The device has the beneficial effects that the area occupied by air flow in the reducer pipe can be reduced through the reducer pipe, then the air pressure of the air flow is increased, then the air pressure of the air flow introduced into the cavity is larger than the normal air pressure, and then the air flow in the cavity can be sucked in through the air flow amplifier and then discharged together; and therefore, air flow in the device can form self-circulation through the air flow amplifier under the condition that the power of the suction fan is not changed, and the cooling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic suspension vacuum pumps, in particular to a self-cooling device for a magnetic suspension vacuum pump. Background Art

[0002] The magnetic levitation turbine vacuum pump is an intelligent turbine equipment developed using magnetic levitation bearing technology, high-speed permanent magnet motor technology, high-frequency vector frequency conversion technology and high-efficiency fluid machinery technology. It is widely used in energy-saving transformation of vacuum pump dehydration processes in the papermaking industry.

[0003] In actual use, the fan needs to control its own power according to the actual temperature of the vacuum pump, which will cause additional heat output, and it is necessary to monitor the temperature changes through relevant sensors, which is more cumbersome.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a magnetic levitation vacuum pump self-cooling device to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A magnetic levitation vacuum pump self-cooling device comprises a base and a magnetic levitation vacuum pump arranged at the top of the base, wherein a shell is arranged around the periphery of the magnetic levitation vacuum pump, an inlet pipe is arranged at one end of the shell, a cooling pipe is arranged at one end of the inlet pipe away from the shell, a return pipe is arranged at one end of the cooling pipe, and an end of the return pipe away from the cooling pipe is connected to the other end of the shell.

[0008] Preferably, a condenser connected to the bottom end of the cooling pipe is provided, and a cooling structure is provided inside the cooling pipe.

[0009] Preferably, the cooling structure includes electric valves arranged at both ends of the cooling pipe, an airflow pipe is arranged inside the cooling pipe, both ends of the airflow pipe are connected to the electric valve, a heat exchange pipe is arranged outside the airflow pipe, both ends of the heat exchange pipe are connected to the condenser, temperature sensors are arranged in the two groups of electric valves, and the temperature sensors are electrically connected to the condenser.

[0010] Preferably, a suction fan is provided at one end of the magnetic levitation vacuum pump, and a reducer connected to the suction fan is provided at one end close to the magnetic levitation vacuum pump, the reducer is connected to the inlet pipe, an arc tube is provided at the junction of the inlet pipe and the reducer, and an automatic valve is provided on the arc tube at the junction with the inlet pipe.

[0011] Preferably, the wall of the reducer is made of a heat exchange material.

[0012] Preferably, the magnetic levitation vacuum pump comprises a pump body arranged in the shell, a chamber is provided between the pump body and the shell, and an airflow amplifier is provided in the chamber near the inlet pipe.

[0013] Preferably, a heat exchange frame is provided outside the pump body.

[0014] Preferably, a storage slot for accommodating the suction fan and the magnetic levitation vacuum pump is provided at the top of the base.

[0015] The beneficial effects of the utility model are as follows: the area occupied by the airflow in the reducer can be reduced by the reducer, thereby increasing the air pressure of the airflow, and then the air pressure of the airflow entering the chamber will be greater than the normal air pressure, and then the airflow in the chamber can be sucked in and discharged together through the airflow amplifier, and then the airflow in the device can be made to form a self-circulation through the airflow amplifier without changing the power of the suction fan, thereby improving the cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is an appearance diagram of a magnetic levitation vacuum pump self-cooling device according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of the pipeline part of a magnetic levitation vacuum pump self-cooling device according to an embodiment of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the internal structure of a magnetic levitation vacuum pump self-cooling device of a magnetic levitation vacuum pump according to an embodiment of the present utility model.

[0020] In the figure:

[0021] 1. Base; 2. Magnetic levitation vacuum pump; 3. Shell; 4. Inlet pipe; 5. Cooling pipe; 6. Return pipe; 7. Electric valve; 8. Airflow pipe; 9. Suction fan; 10. Reducer; 11. Arc pipe; 12. Pump body; 13. Chamber; 14. Airflow amplifier. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] According to an embodiment of the utility model, a magnetic levitation vacuum pump self-cooling device is provided.

[0024] Embodiment 1;

[0025] like Figure 1 As shown, the magnetic levitation vacuum pump self-cooling device according to the embodiment of the utility model includes a base 1 and a magnetic levitation vacuum pump 2 arranged at the top of the base 1, the outer periphery of the magnetic levitation vacuum pump 2 is provided with a shell 3, one end of the shell 3 is provided with an inlet pipe 4, the end of the inlet pipe 4 away from the shell 3 is provided with a cooling pipe 5, one end of the cooling pipe 5 is provided with a return pipe 6, the end of the return pipe 6 away from the cooling pipe 5 is connected to the other end of the shell 3, and the top of the base 1 is provided with a storage groove for the suction fan 9 and the magnetic levitation vacuum pump 2 to be placed.

[0026] Embodiment 2:

[0027] like Figure 2 As shown, a condenser connected to the cooling tube 5 is provided at the bottom end thereof, a cooling structure is provided inside the cooling tube 5, and the cooling structure includes electric valves 7 provided at both ends of the cooling tube 5, an airflow tube 8 is provided inside the cooling tube 5, and both ends of the airflow tube 8 are connected to the electric valve 7, a heat exchange tube is provided outside the airflow tube 8, and both ends of the heat exchange tube are connected to the condenser, temperature sensors are provided in two groups of the electric valves 7, and the temperature sensors are electrically connected to the condenser, a suction fan 9 is provided at one end of the magnetic levitation vacuum pump 2, a reducer 10 is provided on the end of the suction fan 9 close to the magnetic levitation vacuum pump 2 and connected to the reducer 10, the reducer 10 is connected to the inlet pipe 4, an arc tube 11 is provided at the junction of the inlet pipe 4 and the reducer 10, an automatic valve is provided on the arc tube 11 at the junction of the inlet pipe 4, and the wall of the reducer 10 is made of heat exchange material.

[0028] Embodiment three;

[0029] like Figure 3 As shown, the magnetic levitation vacuum pump 2 includes a pump body 12 arranged in the shell 3, a chamber 13 is provided between the pump body 12 and the shell 3, an airflow amplifier 14 is provided in the chamber 13 near the inlet pipe 4, and a heat exchange frame is provided outside the pump body 12.

[0030] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0031] In practical application,

[0032] When the magnetic levitation vacuum pump 2 starts working, the suction fan 9 starts to extract gas, and the airflow enters the shell 3 through the inlet pipe 4. In this process, a part of the airflow will enter the cooling pipe 5, be cooled by the cooling structure, and then flow back to the other end of the shell 3 through the return pipe 6 to form a cycle; the airflow pipe 8 and the heat exchange pipe in the cooling structure are heat exchanged through the condenser, so that the gas in the airflow pipe 8 is cooled. At the same time, the temperature sensor in the electric valve 7 will monitor the temperature in the airflow pipe 8. When the temperature exceeds the preset value, the sensor will send a signal to the condenser, and the condenser will increase the cooling force, so that the airflow can get a better cooling effect; when the airflow reducer 10 enters the inlet pipe 4, the area occupied by the airflow is reduced due to the gradual decrease in the diameter of the reducer 10, thereby increasing the air pressure of the airflow. In this way, when entering the inlet pipe 4, the high-pressure airflow will enter the chamber 13 after passing through the cooling pipe 5, and then the airflow in the chamber 13 can be sucked in by the airflow amplifier 14 to form cooling wind to cool the pump. This design can improve the cooling efficiency without changing the power of the suction fan 9.

[0033] To sum up, with the help of the above-mentioned technical scheme of the utility model, the area occupied by the airflow in the reducer 10 can be reduced through the reducer 10, thereby increasing the air pressure of the airflow, and then the air pressure of the airflow entering the chamber 13 will be greater than the normal air pressure, and then the airflow in the chamber 13 can be sucked in and discharged together through the airflow amplifier 14, and then the airflow in the device can be self-circulated through the airflow amplifier 14 without changing the power of the suction fan 9, thereby improving the cooling efficiency.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A magnetic levitation vacuum pump self-cooling device, characterized in that: The invention comprises a base (1) and a magnetic levitation vacuum pump (2) arranged at the top of the base (1); a shell (3) is arranged on the periphery of the magnetic levitation vacuum pump (2); an inlet pipe (4) is arranged at one end of the shell (3); a cooling pipe (5) is arranged at one end of the inlet pipe (4) away from the shell (3); a return pipe (6) is arranged at one end of the cooling pipe (5); and an end of the return pipe (6) away from the cooling pipe (5) is connected to the other end of the shell (3).

2. A magnetic levitation vacuum pump self-cooling device according to claim 1, characterized in that: A condenser connected to the bottom end of the cooling pipe (5) is provided, and a cooling structure is provided inside the cooling pipe (5).

3. A magnetic levitation vacuum pump self-cooling device according to claim 2, characterized in that: The cooling structure comprises electric valves (7) arranged at both ends of the cooling pipe (5); an airflow pipe (8) is arranged inside the cooling pipe (5); both ends of the airflow pipe (8) are connected to the electric valve (7); a heat exchange pipe is arranged outside the airflow pipe (8); both ends of the heat exchange pipe are connected to the condenser; temperature sensors are arranged inside the two groups of electric valves (7); and the temperature sensors are electrically connected to the condenser.

4. A magnetic levitation vacuum pump self-cooling device according to claim 3, characterized in that: A suction fan (9) is provided at one end of the magnetic levitation vacuum pump (2); a reducer (10) connected to the suction fan (9) is provided at one end close to the magnetic levitation vacuum pump (2); the reducer (10) is connected to the inlet pipe (4); an arc-shaped pipe (11) is provided at the junction of the inlet pipe (4) and the reducer (10); an automatic valve is provided at the junction of the arc-shaped pipe (11) and the inlet pipe (4).

5. A magnetic levitation vacuum pump self-cooling device according to claim 4, characterized in that: The wall of the reducer tube (10) is made of a heat exchange material.

6. A magnetic levitation vacuum pump self-cooling device according to claim 1, characterized in that: The magnetic levitation vacuum pump (2) comprises a pump body (12) arranged in the housing (3), a chamber (13) is arranged between the pump body (12) and the housing (3), and an airflow amplifier (14) is arranged in the chamber (13) near the inlet pipe (4).

7. A magnetic levitation vacuum pump self-cooling device according to claim 6, characterized in that: A heat exchange frame is arranged outside the pump body (12).

8. A magnetic levitation vacuum pump self-cooling device according to claim 4, characterized in that: The top of the base (1) is provided with a storage slot for accommodating the suction fan (9) and the magnetic suspension vacuum pump (2).

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