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CN-121993428-A - Magnetic suspension fan with cooling system

CN121993428ACN 121993428 ACN121993428 ACN 121993428ACN-121993428-A

Abstract

The invention discloses a magnetic suspension fan with a cooling system, which is applied to the field of magnetic suspension fans, and comprises a thrust disc assembly with a heat exchange cover and an air cooling cavity, a water cooling device set and an auxiliary cooling device, wherein the water cooling device set comprises a water cooling unit, a water cooling pipe, a circulating water pump, a water tank and a heat exchanger, and the mechanisms of alternately outputting cooling liquid through a liquid storage pipe, rapidly resetting the cooling liquid of the water cooling pipe when the temperature of a motor is abnormal and the like are adopted, so that the efficient cooperative cooling of the motor and the thrust disc assembly is realized, the magnetic suspension failure caused by overheating is effectively prevented, the auxiliary cooling device is used for carrying out emergency protection when the temperature of the motor is abnormal while carrying out auxiliary heat dissipation on the thrust disc assembly, the cooling liquid can be rapidly reset in the emergency protection, the temperature is prevented from rising, and therefore, the requirements of high-load industrial environments are met, and the cooling assembly is compact in overall design and is convenient to integrate into the existing fan assembly.

Inventors

  • WU QINGSONG

Assignees

  • 和旺磁悬浮科技(沈阳)有限公司

Dates

Publication Date
20260508
Application Date
20260309

Claims (10)

  1. 1. The magnetic suspension fan with the cooling system comprises a fan shaft (1) and a motor (2) which are arranged in a machine shell, wherein one end of the fan shaft (1) is connected with a thrust disc assembly (3), and the magnetic suspension fan is characterized in that the thrust disc assembly (3) comprises a thrust disc (31) connected with the fan shaft (1), a heat exchange cover (32) is connected onto the thrust disc (31), an air cooling cavity matched with the heat exchange cover (32) is arranged at one end of the machine shell, and a flow guide channel is formed in the heat exchange cover (32); a cooling assembly is arranged on the outer side of the shell, and comprises a water cooling equipment set (4); The water cooling equipment set (4) comprises a water cooling unit (41), a water cooling pipe (42) communicated with the water cooling unit (41) is arranged on the motor (2) in a surrounding mode, an auxiliary cooling device (5) is connected to the input end of the water cooling pipe (42) through a three-way electromagnetic valve (43), the auxiliary cooling device (5) comprises three groups of liquid storage pipes (51) used for storing cooling liquid, an electric piston (52) used for outputting the cooling liquid is arranged on each liquid storage pipe (51), and the three groups of liquid storage pipes (51) are communicated with the water cooling unit (41) and the water cooling pipe (42), wherein the two groups of liquid storage pipes (51) are also communicated with the heat exchange cover (32); And when the temperature of the motor (2) is higher than a set threshold value, the two groups of liquid storage pipes (51) are called to input cooling liquid into the water cooling pipe (42) so as to reset the cooling liquid in the water cooling pipe (42).
  2. 2. The magnetic levitation blower with the cooling system of claim 1, wherein the input end and the output end of the water cooling pipe (42) are connected with a water cooling unit (41) through one-way valves, and a liquid conveying pipe with electromagnetic valves is connected between the water cooling unit (41) and a liquid storage pipe (51).
  3. 3. A magnetic suspension fan with a cooling system according to claim 2, wherein the water cooling unit (41) comprises a circulating water pump, a water tank and a heat exchanger, the cooling liquid flowing back by the water cooling pipe (42) and the heat exchange cover (32) enters the water tank to be adjusted after being cooled by the heat exchanger, and the circulating water pump adjusts the cooling liquid output in the water tank.
  4. 4. A magnetic suspension fan with a cooling system according to claim 3, wherein the electric piston (52) outputs the cooling liquid in the liquid storage pipe (51) and then self-resets, and meanwhile, the input end of the liquid storage pipe (51) is opened, and the circulating water pump is regulated to work, so that the cooling liquid is filled into the liquid storage pipe (51).
  5. 5. A magnetic levitation blower with cooling system according to claim 4, wherein the volume of the liquid storage tube (51) is larger than the volume of the diversion channel and the volume of the half water cooling tube (42).
  6. 6. A magnetic levitation blower with cooling system according to claim 5, wherein the priority of calling the liquid storage tube (51) by the water cooling tube (42) is larger than the priority of calling the liquid storage tube (51) by the heat exchange cover (32).
  7. 7. A magnetic levitation blower with cooling system according to claim 6, wherein the output end of the heat exchange cover (32) is connected with a secondary water pump, and the secondary water pump is used for conveying the cooling liquid discharged by the heat exchange cover (32) to the heat exchanger.
  8. 8. The magnetic levitation fan with the cooling system of claim 7, further comprising a cooling management system, wherein the cooling management system comprises a processor arranged on the shell, and the processor is connected with a monitoring module, a data processing module and a control module; the monitoring module is used for collecting monitoring data of all parts in the magnetic suspension fan in real time when the magnetic suspension fan works; The data processing module is used for receiving the data acquired by the processing and analyzing and monitoring module, judging the states of the motor (2) and the thrust disc assembly (3) through analyzing and monitoring data, and generating corresponding control instructions, wherein the control instructions comprise the steps of starting auxiliary heat dissipation of the thrust disc assembly (3) and triggering an auxiliary cooling device (5) to carry out emergency cooling protection on the motor (2); The control module drives the execution part to execute preset actions according to the analysis result of the data processing module, and the data storage module is used for storing preset parameters and historical operation data of the system.
  9. 9. The magnetic suspension fan with the cooling system according to claim 8, wherein the specific operation of starting auxiliary heat dissipation of the thrust disc assembly (3) in the control command comprises the steps that when the monitoring module detects that the temperature of the thrust disc assembly (3) exceeds a preset temperature threshold value a, the data processing module generates the control command for starting auxiliary heat dissipation, the control module selectively calls an electric piston (52) of one liquid storage tube (51) according to the command to push quantitative cooling liquid to be input into a flow guide channel of the heat exchange cover (32), the electric piston (52) automatically resets after the output is finished, an electromagnetic valve at the input end of the liquid storage tube (51) is started, and the circulating water pump charges cooling liquid into the liquid storage tube (51) to maintain an alternate use state.
  10. 10. The magnetic suspension fan with the cooling system according to claim 8, wherein the specific operation of triggering the auxiliary cooling device (5) to carry out emergency cooling protection on the motor (2) in the control command comprises the steps that when the monitoring module detects that the temperature of the motor exceeds a preset safety threshold b, the data processing module immediately generates a highest priority command, the control module firstly controls the three-way electromagnetic valve (43) to switch to an input mode of the liquid storage tube (51), synchronously calls the electric pistons (52) of the two groups of liquid storage tubes (51) to push the cooling liquid to be rapidly injected into the input end of the water cooling tube (42), and simultaneously instructs the water cooling unit to suspend circulation or reduce the flow of the circulating water pump, so that the mixing of new cooling liquid and old cooling liquid is prevented from affecting the rapid cooling effect.

Description

Magnetic suspension fan with cooling system Technical Field The invention relates to the field of magnetic suspension fans, in particular to a magnetic suspension fan with a cooling system. Background The magnetic suspension fan is an efficient energy-saving air blower adopting a magnetic suspension bearing technology, realizes the contactless suspension of a rotor through electromagnetic force, combines a high-speed permanent magnet synchronous motor to drive an impeller to rotate, does not need mechanical contact and lubricating oil, and realizes friction-free and low-loss operation. The intelligent control system has the core advantages of high efficiency, energy saving, low operation noise of below 80 dB, small vibration, oil pollution prevention due to oil-free lubrication design, suitability for clean working conditions, intelligent control system, capability of monitoring operation parameters in real time and automatically adjusting air quantity and wind pressure, and suitability for the requirements of variable working conditions. Chinese invention CN113217426a discloses a magnetic suspension fan with impeller self-priming cooling. The fan comprises a shell, a rotating shaft, a rear protection bearing seat, a rear bearing seat, a front protection bearing seat, a front bearing seat and an impeller, wherein the fan drives a motor cooling air path and a pneumatic air path simultaneously by driving one impeller, so that the number of parts is reduced, and the system stability is improved. The invention CN114876878B discloses an air cooling method and a cooling device thereof for a magnetic suspension fan, wherein the air cooling method comprises a shell component and a cooling component arranged on the shell component, the shell component comprises a scroll, a front end cover, a cover body and a rear end cover which are sequentially connected and installed, the cooling component comprises a spray pipe, an electric control nozzle, a connecting pipe, a cooling pipe, an infrared sensor, a refrigerating device and an exhaust pipe, and the problems of high equipment maintenance cost, poor conveying effect and the like in the prior art can be effectively solved. In the prior art, the magnetic suspension fan motor and the thrust disc have different heat dissipation requirements under different working conditions, the existing cooling equipment for the magnetic suspension fan is inconvenient to conduct targeted cooling adjustment on the magnetic suspension fan motor and the thrust disc, and the cooling adjustment is inflexible and easy to cause unstable operation of the magnetic suspension fan so as to cause faults. Disclosure of Invention The invention aims at solving the problems of unstable equipment operation caused by low heat dissipation efficiency of a magnetic suspension fan motor and a thrust disc and inflexible cooling adjustment in the prior art by combining a thrust disc assembly with a heat exchange cover and an air cooling cavity with a dynamic cooling structure of a water cooling equipment set, an auxiliary cooling device and a cooling management system. Meanwhile, the beneficial effects of improving the heat dissipation efficiency, stabilizing the operation of the equipment and optimizing the adaptability of the working condition are achieved. In order to solve the problems, the invention adopts the following technical scheme. The magnetic suspension fan with the cooling system comprises a fan shaft and a motor which are arranged in a shell, wherein one end of the fan shaft is connected with a thrust disc assembly, the thrust disc assembly comprises a thrust disc plate connected with the fan shaft, a heat exchange cover is connected to the thrust disc plate, an air cooling cavity matched with the heat exchange cover is arranged at one end of the shell, and a diversion channel is formed in the heat exchange cover; the outer side of the shell is provided with a cooling assembly, and the cooling assembly comprises a water cooling equipment set; The water cooling equipment set comprises a water cooling unit, a motor is surrounded by a water cooling pipe communicated with the water cooling unit, the input end of the water cooling pipe is connected with an auxiliary cooling device through a three-way electromagnetic valve, the auxiliary cooling device comprises three groups of liquid storage pipes for storing cooling liquid, an electric piston for outputting the cooling liquid is arranged on the liquid storage pipes, the three groups of liquid storage pipes are communicated with the water cooling unit and the water cooling pipe, and the two groups of liquid storage pipes are also communicated with a heat exchange cover; and when the temperature of the motor is higher than a set threshold value, the two sets of liquid storage pipes are called to input cooling liquid to the water cooling pipe so as to reset the cooling liquid in the water cooling pipe. Further, the input end and the output end of the wa