CN209488382U - A kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device - Google Patents

Abstract

The utility model proposes a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling devices, on the one hand the device uses axial flow blower and heat exchanger realizes that thermal medium and air carry out heat exchange, on the other hand the interior circulation of cooling medium is realized by water pump, on-line monitoring is monitored to whether device works normally simultaneously, problem is checked before device is abnormal, be conducive to staff's analysis data and solution is provided in time, improves device reliability and security performance.

Description

A kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device

Technical field

The utility model relates to motor cooling technologies, more particularly, to a kind of mine high-power permanent magnet direct-drive electricity Machine explosion proof water cooling device.

Background technique

Coal Transportation industry needs to convey material handling vehicle processed from mine to mining using belt conveyor, and passes Graduating power generallys use the mode of the mating speed reducer of conventional three-phase asynchronous machine, and there are low efficiency, volumes for the structure greatly, noise Greatly, the disadvantages of big is lost.With the continuous development of domestic economy and permanent magnet technology and increasingly mature, directly driven using low-speed big Magneto replaces traditional asynchronous machine to have become the development trend and upsurge of industry, and the application of the technology greatly improves Efficiency reduces operation cost, saves the device space.

In order to improve the utilization rate of permanent magnet material, the cost of magneto is reduced, it is negative that permanent magnet generallys use high electromagnetism Lotus, and the meeting expanded motor fever of high electromagnetic load, influence its temperature rise, to guarantee that the normal work of high-power permanent magnet motor needs one Kind reliable cooling device, which guarantees that its temperature rise is maintained at, to seem in reasonable range and is even more important.But due to the type motor core Body is permanent magnet, cannot use the previous mode that forced air cooling is directly carried out to motor.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of mine high-power for prior art deficiency and defect Permanent magnet direct driving motor explosion proof water cooling device.

To achieve the above object, the utility model uses following technical scheme:

A kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device, including shell, the interior setting terminal box of shell, heat exchange Device, propeller fan, water pump, water tank；One side opening of shell be arranged described device water inlet and water outlet, described device into The mouth of a river is connected to the water outlet of permanent magnet direct driving motor, and the water outlet of described device is connected to the water inlet of permanent magnet direct driving motor；Shell Heat exchanger, the air port connection of heat exchanger and propeller fan are set inside the body other side；The water inlet of described device passes through first Pipeline sets gradually temperature sensor, flowmeter, filter, water tank interface, pressure gauge, and is connected to the water inlet of heat exchanger, The water outlet of described device sets gradually temperature sensor, water pump, pressure gauge, and the water outlet with heat exchanger by second pipe Connection；Water tank interface in the first pipe is connected to by tank pipe with water tank.The permanent magnet direct driving motor, terminal box, Propeller fan, water pump install the device with flame proof function additional, and the first pipe and second pipe are flame proof rubber Pipe.

Preferably, the heat exchanger is fin-tube type heat exchange of heat pipe, and heat exchange wind fin and inside heat pipe surface fish line are strong Change, for expanding cooling surface area, the outer surface of the heat exchanger is set as nano-graphite ene coatings, uses for adapting to mine Moist sombre environment.

Preferably, the blower is double speed propeller fan, for being introduced into outside air for the heat transfer in heat exchanger Outflow.The present apparatus further includes control module, and control module is separately connected the temperature sensor, axial flow blower, and control module connects The water temperature value of shrinkage temperature sensor feedback and the revolving speed that axial flow blower is controlled with the threshold value comparison of setting.

Preferably, the water tank is expansion tank, and setting pressure operable valve, side surface setting liquid level are seen on the upside of expansion tank Window is examined, the filter is fabric filter.

Preferably, the water pump is monopole single-suction centrifugal pump.

Preferably, the present apparatus further includes remote monitoring terminal, and air flow sensor, the wind is arranged in the axial flow blower position The fan inlet air quantity of acquisition is fed back to remote monitoring terminal by quantity sensor, for judging the operating condition of axial flow blower；Institute The driving motor position setting vibration velocity sensor and driving motor front and back bearings position setting temperature for stating axial flow blower pass Sensor, remote monitoring terminal receive the vibration velocity sensor feedback driving motor vibration velocity and the temperature sensor it is anti- Whether the temperature value of feedback, real-time judge driving motor work normally；The remote monitoring terminal includes Database Unit, processing list Member, alarm unit, Database Unit are used to store the data of feedback, and processing unit is for judging the whether normal work of monitored object Make, the alarm unit is controlled when being determined as exception and generates warning information prompting user.

Mine high-power permanent magnet direct driving motor explosion proof water cooling device provided by the utility model is for realizing mine, mine Permanent magnet direct driving motor heat exchange achievees the purpose that cooling permanent magnet direct driving motor, while rotary part, electric component being arranged Explosion isolation device, to guarantee it in the security performance of inflammable and explosive environment work.Present apparatus design uses axial flow blower and heat exchanger It realizes that thermal medium and air carry out heat exchange, while realizing the interior circulation of cooling medium by water pump, improve the biography of heat exchanger The thermal efficiency can reduce noise dirt according to the revolving speed that the exit water temperature of permanent magnet direct driving motor voluntarily adjusts axial flow blower in real time simultaneously Dye and power for auxiliary machinery；On the other hand, it is monitored by on-line monitoring to whether device works normally, is abnormal in device Problem is checked before, is conducive to staff's analysis data and solution is provided in time, improve device reliability and safety Performance.

Detailed description of the invention

Fig. 1 is high-power permanent magnet direct driving motor explosion proof water cooling device working principle diagram.

Fig. 2 is high-power permanent magnet direct driving motor explosion proof water cooling device core component explosive view.

Specific embodiment

The utility model is further described With reference to embodiment.

Embodiment 1

Assuming that the mean monthly maximum temperature in coal mine working place is 25 DEG C in the present embodiment, maximum relative humidity is no more than 95%, there are explosibility gases in air.Therefore the present embodiment provides a kind of mine high-power permanent magnet direct driving motor explosion proof water coolings Device guarantees that high-power permanent magnet direct driving motor works normally.

Mine high-power (1000KW) permanent magnet direct driving motor explosion proof water cooling device in the present embodiment includes shell, outside shell The high skeleton 13 of stiffness is arranged to support the placement present apparatus in side.Terminal box 5, heat exchanger 2, propeller fan are set in shell 1, water pump 3, water tank 8.The present apparatus be applicable in the harsh operating environment in mine, therefore should fully consider it is electrical, rotary part every Quick-fried requirement configures motor, blower, water pump and the terminal box with flame proof function with explosion isolation device, secondly, device reliability Must be safe and reliable, therefore when designing the device, fully consider flame proof cooling device critical component: heat exchanger, flame proof water The service life of the components such as pump, explosion-proof fan, flame proof pipeline, explosion-proof connection box, pressure, flow sensor and replacement cycle.

Water inlet and water outlet is arranged close to a side opening of permanent magnet direct driving motor in shell, water inlet by corrugated flexible hose with Permanent magnet direct driving motor water outlet connection outside the side, water outlet are connected to by corrugated flexible hose with permanent magnet direct driving motor water inlet.This The water inlet of device sets gradually temperature sensor 12, flowmeter 10, large-scale fabric filter 9, water by flame proof rubber tubing Case interface, pressure gauge 11, and be connected to the water inlet of heat exchanger 2.Even if its medium-and-large-sized fabric filter 9 uses the present apparatus Underground water under mine, service life is unaffected, has effectively widened the range of cooling device cooling medium.Water tank interface is logical It crosses flame proof rubber tubing to be connected to expansion tank 8, pressure operable valve 7 is set on the upside of expansion tank 8, observation window of liquid level is arranged in side 6, which can save construction site and carry out running preceding water filling using external pump while meeting cooling system expansion function. The water outlet of the present apparatus sets gradually temperature sensor 12, flame proof monopole single suction water pump 3, pressure gauge by flame proof rubber tubing 11, and be connected to the water outlet of heat exchanger 2.Wherein flame proof monopole single suction centrifugal water pump, meet cooling device water flow, every It is quick-fried to use the random biggish environmental condition of ore cooling medium, while using monopole single-suction water pump while require, it can When guaranteeing that the cooling system links for the first time with magneto, circulation in progress can be directly powered on, connect without external world's pump Cooling medium is delivered in driving magneto casing by logical outer circulation, greatly saves the cost of system debug and maintenance.

Heat exchanger 2 is set inside the shell other side, and heat exchanger is copper pipe fin-tube type structure in the present embodiment, and exchange heat wind fin And inside heat pipe surface carries out the reinforcing of fish line, expands cooling surface area, the outside of the heat exchanger for improving heat exchange efficiency Surface carries out nanometer+graphene coating protection processing, for resisting moist, sombre environment under mine, greatly improves heat exchanger Shelf life.Heat exchanger is vertically arranged in device, while in order to further increase heat exchanger heat transfer efficiency, heat exchanger is met At rectangular cross flow, the inlet and outlet of heat exchanger 2 are respectively arranged at the flow direction of cooling water inside wind face and heat exchanger The bottom of heat exchanger 2.

The present apparatus further includes propeller fan 1, and propeller fan installs the device with flame proof function, axis stream cooling blower additional The windward side of 1 air inlet and heat exchanger 2 is correspondingly arranged, and takes away the heat in heat exchanger 2 for being introduced into outside air；Axis stream Cooling blower 1 is double speed axial flow blower, can carry out free speed regulation according to the exit water temperature of magneto: setting control module, control Molding block is separately connected the temperature sensor 12, axial flow blower 1, and control module receives the water temperature value that temperature sensor 12 is fed back And compared with the target value of setting, when lower than 65 DEG C of target value of control, flame proof propeller fan 1 can be cut into low speed fortune Row state, while fan performance ensure that the cooling of water cooling plant low performance requires, minimum reduces noise pollution and subsidiary engine Power is to control the revolving speed of axial flow blower.

Device in the present embodiment is also provided with on-line monitoring system, to cooling fan flow, motor front and back bearings isothermal Degree, blower motor vibration velocity are remotely monitored.By the air quantity of the monitoring systems inspection fan inlet, can effectively sentence The operating condition of the blower of breaking can in time save data in case of data exception, send a command to long-range monitoring number According to library, engineers and technicians can carry out analysis acquisition to data at the first time and cause abnormal reason, be avoided in time due to blower Failure cause to stop production.It is monitored, can constantly be monitored by the vibration velocity of temperature and motor to motor front and back bearings The working condition of motor bearings, finds the problem before exception occurs in bearing, as generation temperature is overproof or motor oscillating speed Excessive, remote supervision system can obtain this information at the first time, can be sent back at the first time exception information by detection system remote Range monitoring database is conducive to engineers and technicians and carries out exception information analysis, provides solution in time.

To sum up, when direct-drive permanent-magnetism motor works, the work of water cooling plant random start, cooling water is in flame proof monopole single suction water Interior circulation is carried out around direct-drive permanent-magnetism motor outer wall and cooling system heat exchanger under the action of pump, at the same time, flame proof axis circulation wind Machine is started to work, and cold air and interior cycling use of water are carried out heat exchange, ensure that direct-drive permanent-magnetism motor works normally.

Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model It changes, both is within the protection scope of the present invention.

Claims (10)

1. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device, which is characterized in that including shell, setting is connect in shell Wire box, heat exchanger, propeller fan, water pump, water tank；The water inlet and water outlet of described device, institute is arranged in one side opening of shell The water inlet for stating device is connected to the water outlet of permanent magnet direct driving motor, the water inlet of the water outlet and permanent magnet direct driving motor of described device Mouth connection；The air port of another side opening of shell and internal setting heat exchanger, heat exchanger and propeller fan connects；Described device Water inlet sets gradually temperature sensor, flowmeter, filter, water tank interface, pressure gauge, and and heat exchanger by first pipe Water inlet connection, the water tank interface in the first pipe is connected to by tank pipe with water tank, the water outlet of described device Temperature sensor, water pump, pressure gauge are set gradually by second pipe, and is connected to the water outlet of heat exchanger；The permanent magnetism is straight It drives motor, terminal box, propeller fan, water pump and installs the device with flame proof function, the first pipe and the second pipe additional Road is flame proof rubber tube.

2. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 1, which is characterized in that institute Stating heat exchanger is fin-tube type heat exchange of heat pipe, and exchange heat wind fin and the reinforcing of inside heat pipe surface fish line, for expanding heat dissipation table Area, the outer surface of the heat exchanger are set as nano-graphite ene coatings, for adapting to the moist sombre environment of mine.

3. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 1, which is characterized in that institute Stating blower is double speed propeller fan, flows out the heat transfer in heat exchanger for being introduced into outside air.

4. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 3, which is characterized in that also Including control module, control module is separately connected the temperature sensor, axial flow blower, and it is anti-that control module receives temperature sensor The water temperature value of feedback and the revolving speed that axial flow blower is controlled with the threshold value comparison of setting.

5. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 1, which is characterized in that institute Stating water tank is expansion tank, and observation window of liquid level is arranged in setting pressure operable valve, side surface on the upside of expansion tank.

6. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 1, which is characterized in that institute Stating filter is fabric filter.

7. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 1, which is characterized in that institute Stating water pump is monopole single-suction centrifugal pump.

8. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 1-7, special Sign is, further includes remote monitoring terminal, and air flow sensor is arranged in the axial flow blower position, and the air flow sensor will acquire Fan inlet air quantity feed back to remote monitoring terminal, for judging the operating condition of axial flow blower.

9. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 8, which is characterized in that institute The driving motor position setting vibration velocity sensor and driving motor front and back bearings position setting temperature for stating axial flow blower pass Sensor, remote monitoring terminal receive the vibration velocity sensor feedback driving motor vibration velocity and the temperature sensor it is anti- Whether the temperature value of feedback, real-time judge driving motor work normally.

10. a kind of mine high-power permanent magnet direct driving motor explosion proof water cooling device according to claim 9, which is characterized in that The remote monitoring terminal includes Database Unit, processing unit, alarm unit, and Database Unit is used to store the number of feedback According to processing unit controls the alarm unit when being determined as exception and generate in advance for judging whether monitored object works normally Alert information reminding user.