CN216699697U - Static dehumidification dynamic cooling device for motor - Google Patents
Static dehumidification dynamic cooling device for motor Download PDFInfo
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- CN216699697U CN216699697U CN202122506940.6U CN202122506940U CN216699697U CN 216699697 U CN216699697 U CN 216699697U CN 202122506940 U CN202122506940 U CN 202122506940U CN 216699697 U CN216699697 U CN 216699697U
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Abstract
The utility model discloses a static dehumidification dynamic cooling device for a motor, which comprises a plurality of fans of a circulating pump motor, a dehumidification drying device and a switch circuit, wherein the circulating pump motor is provided with a plurality of air inlets, a water inlet, a water outlet and a plurality of air outlets, each fan is respectively connected with one air inlet, a cooling water channel is arranged in a space where a coil and a stator and a rotor in the circulating pump motor are positioned, one end of the cooling water channel is communicated with the water inlet, the other end of the cooling water channel is communicated with the water outlet, the dehumidification drying device is arranged at the air inlet of the circulating pump motor, the switch circuit is electrically connected with the plurality of fans and the dehumidification drying device, and the switch circuit is used for opening or closing the plurality of fans and/or the dehumidification drying device. The utility model solves the technical problems that the working temperature of the existing large-scale circulating pump motor is higher and the damp insulation is unqualified after the operation is stopped.
Description
Technical Field
The utility model relates to the technical field of power generation, in particular to a static dehumidification dynamic cooling device for a motor.
Background
The large-scale circulating pump motor of many power plants is all in the near water pump room pit of source of water. In the operation process, the circulation pump motor is generally under high-strength work, the temperature of a motor coil in the operation process is higher and can reach 140 ℃ at most, the temperature far exceeds the safe operation temperature of the water pump motor, and the unqualified insulation of the circulation pump motor when the circulation pump motor is restarted after shutdown is a long-term difficult problem of a plurality of power plants.
The main reasons for this current situation are as follows:
1. the circulating pump motor is positioned in a pit of a water pump room with poor ventilation, the motor emits high-heat gas to surround the motor, so that the temperature difference between the motor body and the external ring is reduced, and the quick heat dissipation of the motor body to surrounding natural air is prevented;
3. although the water cooler is arranged on the motor of the circulating pump, the phenomenon that the temperature of a cooling water is higher, more impurities exist and the effect of the water cooler is poor due to insufficient consideration of regional climate conditions is caused, so that the temperature of a motor coil is overhigh.
3. The moisture and the moisture in the pit of the water pump room are heavy, and the coil is easily damped after the motor is stopped, so that the insulation is unqualified.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the technical defects and provide a static dehumidification dynamic cooling device for a motor, which solves the technical problems that the water pump motor in the prior art is high in temperature during working and unqualified in damp insulation after shutdown.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a static dehumidification dynamic cooling device of a motor is used for cooling and dehumidifying a coil and a stator and a rotor inside a circulating pump motor and comprises a plurality of fans, a dehumidification drying device and a switch circuit, the circulating pump motor is provided with a plurality of air inlets, water outlets and a plurality of air outlets, the air inlet and the air outlet are communicated with the space where the coil and the stator and the rotor are positioned in the circulating pump motor, each fan is respectively connected with an air inlet, a cooling water channel is arranged in the space where the coil and the stator and the rotor are positioned in the circulating pump motor, one end of the cooling water channel is communicated with the water inlet, the other end of the cooling water channel is communicated with the water outlet, the dehumidifying and drying device is arranged at the air inlet of the circulating pump motor, the switch circuit is electrically connected with the fans and the dehumidifying and drying devices, and is used for turning on or turning off the fans and/or the dehumidifying and drying devices.
Preferably, in the motor static dehumidification dynamic cooling device, the switch circuit includes a detection control circuit, a first switch, a second switch, a third switch, a first relay and a second relay, the detection control circuit is connected with a control end of the first switch, a control end of the second switch and a control end of the third switch through a plurality of IO ports, one end of the first switch is connected with a power supply, the other end of the first switch is connected with one end of the second switch and one end of the third switch, the other end of the second switch is connected with one end of a coil of the first relay, the other end of the third switch is connected with one end of a coil of the first relay and one end of a coil of the second relay, the other end of the coil of the first relay and the other end of the coil of the second relay are both grounded, the power supply is connected with each fan through a contact of the first relay, and the power supply is also connected with the dehumidifying and drying device through a contact of a second relay.
Preferably, the static dehumidification dynamic cooling device of motor in, it includes control chip, temperature sensor and humidity transducer to detect control circuit, temperature sensor and humidity transducer all set up in the circulating pump motor, temperature sensor and humidity transducer connect respectively control chip's an analog signal input interface, control chip connects the control end of first switch, the control end of second switch and the control end of third switch respectively through a plurality of IO mouth.
Preferably, in the motor static dehumidification dynamic cooling device, the control chip adopts a 89C51 series single chip microcomputer.
Preferably, in the motor static dehumidification dynamic cooling device, the dehumidification drying device comprises a plurality of heaters, and the plurality of heaters are electrically connected with the switch circuit.
Preferably, in the motor static dehumidification dynamic cooling device, the number of the heaters is 2.
Preferably, in the motor static dehumidification dynamic cooling device, the number of the fans is 2, and the number of the air inlets corresponds to the number of the fans.
Preferably, in the motor static dehumidification dynamic cooling device, the number of the air outlets is 4.
Preferably, in the motor static dehumidification dynamic cooling device, a blocking plate is arranged at the air outlet.
Preferably, in the motor static dehumidification dynamic cooling device, a water inlet pipe fixing plate and a water outlet pipe fixing plate are respectively arranged at the water inlet and the water outlet.
Compared with the prior art, the static dehumidification dynamic cooling device for the motor, provided by the utility model, has the advantages that the fan is arranged to introduce cold air into the circulating pump motor, the cooling water channel is arranged in the circulating pump motor, the cooling of the motor can be realized in a mode of combining air cooling and water cooling, in addition, the dehumidification drying device is arranged, the dehumidification drying device is combined with the fan to realize dehumidification, the switch circuit is utilized to control the operation of the fan and the dehumidification drying device, the cooling and/or dehumidification of the motor can be carried out at a proper time, the damage of the motor caused by overhigh temperature or overhigh humidity is avoided, and the service life of the motor is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of a static dehumidification dynamic cooling device for a motor according to a preferred embodiment of the present invention;
FIG. 2 is a block diagram of a preferred embodiment of the static dehumidification dynamic cooling device of the motor according to the present invention;
FIG. 3 is a schematic diagram of a preferred embodiment of the heating circuit of the static dehumidification dynamic cooling device of the motor according to the present invention;
fig. 4 is a block diagram of a preferred embodiment of the detection control circuit in the static dehumidification dynamic cooling device for a motor according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 and 2, a static dehumidification dynamic cooling device for a motor according to an embodiment of the present invention is used for cooling and dehumidifying a coil and a stator and a rotor inside a pump motor 1, and includes a plurality of fans 2, a dehumidification drying device 3, and a switch circuit 4, wherein the pump motor 1 is provided with a plurality of air inlets 1a, a plurality of water inlets 1b, a plurality of water outlets 1c, and a plurality of air outlets 1d, the air inlets 1a and the air outlets 1d are communicated with a coil 5 inside the pump motor and a space where the stator and the rotor are located, each fan 2 is respectively connected to one air inlet 1a, cooling water channels are disposed in the space where the coil and the stator and the rotor inside the pump motor 1, one end of each cooling water channel is communicated with the water inlet 1b, the other end of each cooling water channel is communicated with the water outlet 1c, the dehumidification drying device 3 is disposed at the air inlet 1a of the pump motor 1, switch circuit 4 and a plurality of fan 2 and dehumidification drying device 3 electricity are connected, switch circuit 4 is used for opening or closes a plurality of fan 2 and/or dehumidification drying device 3.
In this embodiment, in order to lower the temperature for coil and stator and rotor inside the pump motor 1, be provided with a plurality of fans 2 and cooling water course, fan 2 accessible air inlet 1a blows in cold air medium to pump motor 1 is inside, and cold air medium can extrude the hot air medium inside pump motor 1 from gas outlet 1d, thereby reduces the temperature inside pump motor 1, in addition, still can pass through in the cooling water course water inlet 1b flows in the cooling water, then the warp the cooling water course is followed delivery port 1c flows, at the in-process that flows, also can take away the heat in the pump motor 1, through water-cooling and air cooling's mode, can reduce the temperature of the environment that the motor is located rapidly to reach the purpose of lowering the temperature for coil and stator inside the motor, guarantee the safe operation of motor. In addition, the embodiment of the utility model also provides a dehumidifying and drying device 3 in the interior of the pump motor 1, the fan 2 can also be used for dehumidifying in combination with the dehumidifying and drying device 3, the fan 2 can blow air to the interior of the pump motor to achieve the air drying effect, and the dehumidifying and drying device can reduce the humidity in the interior of the pump motor 1, so that the dehumidifying purpose is achieved.
Furthermore, the embodiment of the utility model is provided with the switch circuit 4, the operation of the fan 2 and the dehumidifying and drying device 3 is controlled by the switch circuit 4, and the motor can be cooled and/or dehumidified at a proper time, so that the temperature of the motor during operation can be reduced, and the over-high humidity inside the motor can be avoided. In specific implementation, when the temperature detected by the switch circuit 4 is too high, for example, exceeds 60 ℃, the switch circuit 4 controls the operation of the fans 2, the motors are rapidly cooled in an air cooling and water cooling mode, when the temperature detected by the switch circuit 4 is lower, the operation of the fans 2 is stopped, for example, when the temperature is lower than 50 ℃, the operation of each fan 2 is directly stopped; when the switch circuit 4 detects that the humidity is too high, for example, exceeds 50%, the switch circuit 4 controls the operation of the fan 2 and the dehumidifying and drying device 3 to rapidly reduce the humidity of the motor, and when the switch circuit 4 detects that the humidity is low, the operation of the fan 2 and the dehumidifying and drying device 3 is stopped, for example, when the humidity is less than 30%, the operation of the dehumidifying and drying device 3 is directly controlled. In addition, because the fan 2 is adopted in both cooling and dehumidifying in the embodiment of the present invention, when any one of the humidity or temperature indexes does not reach the standard, the fan 2 is kept in an operating state, for example, when the humidity is less than 30% but the temperature exceeds 60 ℃, the operation of the fan 2 is not stopped at this time, and the fan 2 is still kept in the operating state.
According to the embodiment of the utility model, the fan 2 is arranged to introduce cold air into the pump motor 1, the cooling water channel is arranged in the pump motor 1, the cooling of the motor can be realized in a mode of combining air cooling and water cooling, in addition, the dehumidifying and drying device 3 is arranged, the dehumidifying can be realized by combining the dehumidifying and drying device 3 with the fan 2, the switch circuit 4 is used for controlling the operation of the fan 2 and the dehumidifying and drying device 3, the cooling and/or dehumidifying of the motor can be carried out at a proper time, the damage of the motor caused by overhigh temperature or overhigh humidity is avoided, and the service life of the motor is prolonged.
Referring to fig. 2 and 3, in a preferred embodiment, the switch circuit 4 includes a detection control circuit 41, a first switch K1, a second switch K2, a third switch K3, a first relay KM1 and a second relay KM2, the detection control circuit 41 is connected to a control terminal of the first switch K1, a control terminal of the second switch K2 and a control terminal of the third switch K3 through a plurality of IO ports, one terminal of the first switch K1 is connected to a power supply, the other terminal of the first switch K1 is connected to one terminal of the second switch K2 and one terminal of the third switch K3, the other terminal of the second switch K2 is connected to one terminal of a coil of the first relay KM1, the other terminal of the third switch K3 is connected to one terminal of a coil of the first relay KM1 and one terminal of a coil of the second relay KM2, the other terminal of the coil of the first relay KM1 and the other terminal of the coil KM2 are grounded, the power supply is connected with each fan 2 through the contact of the first relay KM1, and is also connected with the dehumidifying and drying device 3 through the contact of the second relay KM 2.
In this embodiment, the first switch K1 is used as a main switch, and when dehumidification and cooling are not required, the detection control circuit 41 directly turns off the first switch K1, so as to cut off the power supply of the motor 2 and the dehumidification drying device 3; when cooling or dehumidification is needed, the first switch K1 is closed firstly, if cooling is needed, the second switch K2 is closed, the coil of the first relay KM1 is electrified, the contact of the first relay KM1 is closed, and therefore all fans 2 are electrified to operate, cold air can be blown into the interior of the circulating pump motor 1, and the purpose of cooling the coil 5 and the stator and rotor is achieved; if dehumidification is needed, the second switch K2 and the third switch K3 are closed, the coils of the first relay KM1 and the second relay KM2 are powered on, and the contacts of the first relay KM1 and the second relay KM2 are closed, so that the fan 2 and the dehumidification drying device 3 are powered on to operate, the humidity inside the circulating pump motor 1 can be reduced, and the purpose of dehumidifying the coil 5 and the stator and rotor is achieved.
Referring to fig. 4, in a further embodiment, the detection control circuit includes a control chip U1, a temperature sensor U2, and a humidity sensor U3, the temperature sensor U2 and the humidity sensor U3 are both disposed in the tracking pump motor 1, the temperature sensor U2 and the humidity sensor U3 are respectively connected to an analog signal input interface of the control chip U1, and the control chip U1 is respectively connected to the control terminal of the first switch K1, the control terminal of the second switch K2, and the control terminal of the third switch K3 through a plurality of IO ports.
In this embodiment, the control chip U1 controls the actions of the switches according to the temperature and humidity detected by the temperature sensor U2 and the humidity sensor U3, and when the humidity sensor U3 detects that the humidity is too high, the control chip U1 controls the first switch K1 to be closed, and controls the second switch K2 and the third switch K3 to be closed; when the temperature sensor U2 detects that the temperature is too high, the control chip U1 controls the first switch K1 to be closed and controls the second switch K2 to be closed.
In specific implementation, the control chip U1 adopts an 89C51 series single chip microcomputer, which has stable performance and high processing speed, and certainly, in other embodiments, the control chip U1 may also adopt other chips capable of implementing the functions of the present invention, which is not limited in this respect.
In a preferred embodiment, the dehumidifying and drying device 3 includes a plurality of heaters, the plurality of heaters are all electrically connected to the switch circuit 4, and the plurality of heaters work simultaneously, so as to accelerate the dehumidifying efficiency. In one embodiment, the number of the heaters is 2, and the dehumidification efficiency can be ensured.
In the preferred embodiment, the number of the fans 2 is 2, the number of the air inlets 1a corresponds to the number of the fans 2, air cooling and air drying are realized through the two fans 2, and the cooling and dehumidifying efficiency can be ensured.
In a preferred embodiment, the number of the air outlets 1d is 4, so that the hot air discharging speed can be increased, and the cooling efficiency can be increased.
In a preferred embodiment, a blocking plate (not shown in the figure) is arranged at the air outlet 1d, the blocking plate can be opened or closed to the air outlet 1d, and when the temperature is required to be reduced, the blocking plate is opened, so that hot air can be rapidly discharged, and when the temperature is not required to be reduced, the blocking plate can be closed to prevent foreign matters from entering the interior of the pump motor 1.
In a preferred embodiment, the water inlet 1b and the water outlet 1c are respectively provided with a water inlet pipe fixing plate 6 and a water outlet pipe fixing plate 7, the water inlet pipe fixing plate 6 is used for fixing a water inlet pipe, and the water outlet pipe fixing plate 7 is used for fixing a water inlet pipe, so that the flowing stability of cooling water is ensured.
In summary, according to the static dehumidification dynamic cooling device for the motor provided by the utility model, the fan is arranged to introduce cold air into the circulating pump motor, the cooling water channel is arranged in the circulating pump motor, and the cooling of the motor can be realized in a mode of combining air cooling and water cooling.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A static dehumidification dynamic cooling device of a motor is used for cooling and dehumidifying a coil and a stator and a rotor inside a circulating pump motor and is characterized by comprising a plurality of fans, a dehumidification drying device and a switch circuit of the circulating pump motor, wherein the circulating pump motor is provided with a plurality of air inlets, a water inlet, a water outlet and a plurality of air outlets, the air inlets and the air outlets are communicated with the space where the coil and the stator and the rotor inside the circulating pump motor are located, each fan is respectively connected with an air inlet, cooling water channels are arranged in the space where the coil and the stator and the rotor inside the circulating pump motor are located, one end of each cooling water channel is communicated with the water inlet, the other end of each cooling water channel is communicated with the water outlet, the dehumidification drying device is arranged at the air inlet of the circulating pump motor, and the switch circuit is electrically connected with the fans and the dehumidification drying device, the switch circuit is used for turning on or turning off the fans and/or the dehumidifying and drying device.
2. The device according to claim 1, wherein the switch circuit comprises a detection control circuit, a first switch, a second switch, a third switch, a first relay and a second relay, the detection control circuit is connected with the control end of the first switch, the control end of the second switch and the control end of the third switch through a plurality of IO ports, respectively, one end of the first switch is connected with a power supply, the other end of the first switch is connected with one end of the second switch and one end of the third switch, the other end of the second switch is connected with one end of the coil of the first relay, the other end of the third switch is connected with one end of the coil of the first relay and one end of the coil of the second relay, the other ends of the coil of the first relay and the coil of the second relay are grounded, and the power supply is connected with the fans through the contact of the first relay, and the power supply is also connected with the dehumidifying and drying device through a contact of a second relay.
3. The dynamic cooling device for motor static dehumidification according to claim 2, wherein the detection control circuit comprises a control chip, a temperature sensor and a humidity sensor, the temperature sensor and the humidity sensor are both disposed in the pump motor, the temperature sensor and the humidity sensor are respectively connected to an analog signal input interface of the control chip, and the control chip is respectively connected to the control end of the first switch, the control end of the second switch and the control end of the third switch through a plurality of IO ports.
4. The motor static dehumidification dynamic cooling device of claim 3, wherein the control chip is a 89C51 series single chip microcomputer.
5. The dynamic cooling device with static dehumidification function of motor according to claim 1, wherein said dehumidification drying device comprises a plurality of heaters, and said heaters are electrically connected to said switch circuit.
6. The motor static dehumidification dynamic cooling device of claim 5, wherein the number of said heaters is 2.
7. The dynamic cooling device with motor static dehumidification according to claim 1, wherein the number of the fans is 2, and the number of the air inlets corresponds to the number of the fans.
8. The motor static dehumidification dynamic cooling device of claim 1, wherein the number of air outlets is 4.
9. The dynamic motor static dehumidification cooling device of claim 1, wherein a blanking plate is disposed at the air outlet.
10. The dynamic cooling device for static dehumidification of motor according to claim 1, wherein a water inlet pipe fixing plate and a water outlet pipe fixing plate are respectively disposed at the water inlet and the water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122506940.6U CN216699697U (en) | 2021-10-18 | 2021-10-18 | Static dehumidification dynamic cooling device for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122506940.6U CN216699697U (en) | 2021-10-18 | 2021-10-18 | Static dehumidification dynamic cooling device for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216699697U true CN216699697U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122506940.6U Active CN216699697U (en) | 2021-10-18 | 2021-10-18 | Static dehumidification dynamic cooling device for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216699697U (en) |
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2021
- 2021-10-18 CN CN202122506940.6U patent/CN216699697U/en active Active
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