CN218162107U - Permanent magnet motor for cooling tower - Google Patents

Abstract

The utility model relates to the technical field of cooling tower equipment, in particular to a permanent magnet motor for cooling towers, comprising: a rotating shaft, one end of the rotating shaft is connected with a fan, the other end of the rotating shaft is connected with a water wheel, and the outer side of the rotating shaft is sleeved There is a rotor, the outer side of the rotor is provided with a stator, and the bottom end of the end cover II is connected with a base through bolts. Under normal circumstances, the utility model preferentially utilizes water energy to drive, converts the water energy of the circulating water into mechanical energy, and uses the redundant water energy of the circulating cooling water system where the cooling tower equipment is located to drive the water turbine to operate, thereby driving the operation of the fan, realizing cooling effect. When the water energy is insufficient or the cooling is not enough, the permanent magnet motor is used to increase the fan speed to improve the heat dissipation effect. When the heat dissipation effect meets the requirements, the permanent magnet motor can be stopped and the water energy can continue to be used to drive the fan, which is effective. The redundant water energy is used, and the cooling effect can be achieved, that is, energy saving and high efficiency.

Description

Permanent magnet motor for cooling tower

technical field

The utility model relates to the technical field of cooling tower equipment, in particular to a permanent magnet motor for cooling towers.

Background technique

The existing cooling tower fan drive is mainly driven by electric drive. The motor is connected to the drive fan through the reducer or the motor directly drives the fan. The water energy of the circulating water is converted into mechanical energy, and the redundant water energy of the circulating cooling water system where the cooling tower equipment is located is used to drive the water turbine to operate instead of the original motor to drive the fan to dissipate heat. This scheme is affected by the water energy, and the running time and operation of the fan The speed of the machine is limited by the water energy, that is, the cooling effect is affected by the water energy.

Utility model content

The purpose of this utility model is to provide a permanent magnet motor for cooling towers, to solve the problems in the above-mentioned background technology that the motor consumes electricity for perennial operation, the economic expenditure is also relatively large, and the running time and speed of the fan are limited by water energy.

In order to achieve the above purpose, the utility model provides the following technical solutions: a permanent magnet motor for cooling towers, including:

A rotating shaft, one end of the rotating shaft is connected to a fan, the other end of the rotating shaft is connected to a water wheel, the outer side of the rotating shaft is covered with a rotor, the outer side of the rotor is provided with a stator, and the outer side of the rotating shaft close to the fan is arranged There is a bearing I, and a bearing II is provided on the outside of the end of the rotating shaft close to the water wheel. The end of the stator close to the fan is connected to an end cover I, and the end of the stator close to the water wheel is connected to an end cover II. The bottom of the end cover II The ends are connected to the base by bolts.

Preferably, the shaft and the rotor are thermally fitted, and the rotor and the stator are magnetically engaged.

Preferably, assembly bolts are installed on the end cover I and the end cover II, the end cover I is fixedly connected to the stator through the assembly bolts, and the end cover II is fixedly connected to the stator through the assembly bolts.

Preferably, the side of the bearing I away from the stator is provided with a bearing outer cover, and the bearing outer cover is detachably connected to the end cover I through bolts.

Preferably, the side of the bearing II close to the stator is provided with a bearing inner cover, and the bearing inner cover is detachably connected to the end cover II through bolts.

Preferably, a rotating structure is formed between the rotating shaft and the fan, and the fan and the rotating shaft are detachably connected.

Preferably, a rotating structure is formed between the rotating shaft and the water wheel, and the water wheel and the rotating shaft are detachably connected.

Compared with the prior art, the beneficial effects of the utility model are:

Under normal circumstances, the utility model preferentially utilizes water energy to drive, converts the water energy of the circulating water into mechanical energy, and uses the redundant water energy of the circulating cooling water system where the cooling tower equipment is located to drive the water turbine to operate, thereby driving the operation of the fan, realizing cooling effect. When the water energy is insufficient or the cooling is not enough, the permanent magnet motor is used to increase the fan speed to improve the heat dissipation effect. When the heat dissipation effect meets the requirements, the permanent magnet motor can be stopped and the water energy can continue to be used to drive the fan, which is effective. The redundant water energy is used, and the cooling effect can be achieved, that is, energy saving and high efficiency.

Description of drawings

Fig. 1 is the schematic diagram of the connecting structure of the utility model rotating shaft and fan and water wheel;

Fig. 2 is a schematic diagram of the internal structure of the permanent magnet motor of the present invention.

In the figure: 1. Rotating shaft; 2. Bearing outer cover; 3. Bearing I; 4. End cover I; 5. Bolt; 6. Stator; 7. Rotor; 8. Bearing inner cover; 9. End cover II; 10. Bearing II; 11, base; 12, fan; 13, water wheel.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, the permanent magnet motor for cooling towers includes: a rotating shaft 1, a fan 12 is connected to one end of the rotating shaft 1, a rotating structure is formed between the rotating shaft 1 and the fan 12, and the fan 12 and the rotating shaft 1 are detachably connected, The rotation of the rotating shaft 1 can drive the fan 12 to rotate, so that the fan 12 can be cooled. At the same time, the fan 12 can be easily replaced and maintained through the detachable connection. The other end of the rotating shaft 1 is connected with a water wheel 13. 1 forms a rotating structure with the water wheel 13, and the connection between the water wheel 13 and the rotating shaft 1 is detachable. The setting of the water wheel 13 can conveniently provide power for the cooling operation. The water energy of the circulating water is converted into mechanical energy, and the redundant water energy of the circulating cooling water system where the cooling tower equipment is located is used to drive the water turbine 13 to operate, thereby driving the operation of the fan 12 to achieve the cooling effect.

As shown in Figures 1-2, the permanent magnet motor for cooling towers includes: a rotor 7 is sleeved on the outer side of the rotating shaft 1, and the space between the rotating shaft 1 and the rotor 7 is shrink-fitting, and the outer side of the rotor 7 is provided with a stator 6, and the rotor 7 and the stator 6 are magnetically engaged, and the operation of the motor can drive the fan 12 to rotate, so that the fan 12 can be cooled. A bearing I3 is arranged on the outside of the end of the rotating shaft 1 close to the fan 12, and the bearing I3 is arranged on the side away from the stator 6. There is a bearing outer cover 2, and the bearing outer cover 2 is detachably connected to the end cover I4 through bolts, and the bearing I3 can be protected through the bearing outer cover 2, and the outer side of the rotating shaft 1 close to the water wheel 13 is provided with a bearing II10 , the side of the bearing II10 close to the stator 6 is provided with a bearing inner cover 8, the bearing inner cover 8 is detachably connected to the end cover II9 through bolts, and the bearing I3 and bearing II10 provided can facilitate the rotating operation of the rotating shaft 1 through The bearing inner cover 8 can protect the bearing II10, the assembly of the bearing and the cover is convenient for disassembly and maintenance of the motor, the end of the stator 6 close to the fan 12 is connected with the end cover I4, and the end of the stator 6 close to the water wheel 13 is connected with the end cover Ⅱ9, the end cover Ⅰ4 and the end cover Ⅱ9 are equipped with assembly bolts 5, the end cover Ⅰ4 is fixedly connected with the stator 6 through the assembly bolt 5, and the end cover Ⅱ9 is fixedly connected with the stator 6 through the assembly bolt 5, Through the end cover I4 and the end cover II9, the rotor 7, the stator 6 and the rotating shaft 1 inside the motor can be wrapped to ensure the stability of the motor operation. It can be installed in a suitable position of the cooling tower. When the water energy is insufficient or the cooling is not enough, the permanent magnet motor can be used to increase the speed of the fan by 12 to improve the heat dissipation effect. When the heat dissipation effect meets the requirements, the permanent magnet motor can be stopped and continued. The fan 12 is driven by the water energy, so that the redundant water energy is effectively utilized, and the cooling effect can be achieved, which is energy-saving and high-efficiency.

It should be noted that, when using the permanent magnet motor for cooling towers of the present application, the equipment is installed in a suitable position of the cooling tower through the base 11, and the water energy is preferentially used to drive the water wheel 13 to rotate, and the water wheel 13 The fan 12 can be driven to rotate through the rotating shaft 1, so that heat can be dissipated through the fan 12. When the water energy is insufficient or the cooling is not enough, the motor is started, and through the rotation of the rotor 7, the rotor 7 can drive the rotating shaft 1 to rotate, so that it can be driven by the rotating shaft 1. The blower fan 12 rotates, and the cooling effect is improved through the work of the blower fan 12 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. Permanent magnet motor for cooling tower, its characterized in that includes:

pivot (1), the one end of pivot (1) is connected with fan (12), the other end of pivot (1) is connected with water wheels (13), the outside cover of pivot (1) is equipped with rotor (7), the outside of rotor (7) is equipped with stator (6), the one end outside that pivot (1) is close to fan (12) is provided with bearing I (3), and is provided with bearing II (10) in the one end outside that pivot (1) is close to water wheels (13), the one end that stator (6) are close to fan (12) is connected with end cover I (4), and the one end that stator (6) are close to water wheels (13) is connected with end cover II (9), there is base (11) bottom of end cover II (9) through bolted connection.

2. A permanent-magnet machine for cooling towers according to claim 1, characterised in that the rotor (7) and the rotor (1) are hot-fitted and the rotor (7) and the stator (6) are magnetically attracted.

3. The permanent magnet motor for the cooling tower as recited in claim 1, wherein the end cover I (4) and the end cover II (9) are both provided with assembling bolts (5), the end cover I (4) is fixedly connected with the stator (6) through the assembling bolts (5), and the end cover II (9) is fixedly connected with the stator (6) through the assembling bolts (5).

4. The permanent magnet motor for the cooling tower is characterized in that a bearing outer cover (2) is arranged on one side, away from the stator (6), of the bearing I (3), and the bearing outer cover (2) is detachably connected with the end cover I (4) through bolts.

5. The permanent magnet motor for the cooling tower as recited in claim 1, wherein a bearing inner cover (8) is arranged on one side of the bearing II (10) close to the stator (6), and the bearing inner cover (8) is detachably connected with the end cover II (9) through a bolt.

6. The permanent magnet motor for the cooling tower is characterized in that a rotating structure is formed between the rotating shaft (1) and the fan (12), and the fan (12) is detachably connected with the rotating shaft (1).

7. The permanent magnet motor for the cooling tower as claimed in claim 1, wherein a rotating structure is formed between the rotating shaft (1) and the water wheel (13), and the water wheel (13) is detachably connected with the rotating shaft (1).

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