CN215528806U - Motor water cooling plant - Google Patents
Motor water cooling plant Download PDFInfo
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- CN215528806U CN215528806U CN202121368081.2U CN202121368081U CN215528806U CN 215528806 U CN215528806 U CN 215528806U CN 202121368081 U CN202121368081 U CN 202121368081U CN 215528806 U CN215528806 U CN 215528806U
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Abstract
The utility model discloses a motor water cooling device, which comprises a cold water source, a control device, a cooler, a temperature sensor and filters, wherein the cooler is used for being connected to the position of a bearing of a motor shell; at least one water inlet pipe is arranged between the water inlet main valve and the cooler, a water inlet valve is arranged on the water inlet pipe, at least one water outlet pipe is arranged between the water outlet main valve and the cooler, and a water outlet valve is arranged on the water outlet pipe; the temperature sensor, the water inlet valve and the water outlet valve are all connected with the control device, when the temperature of the bearing exceeds the water cooling starting temperature, the water inlet valve and the water outlet valve are opened, and when the temperature of the bearing is lower than the water cooling stopping temperature, the water inlet valve and the water outlet valve are closed. Therefore, the structure of the existing motor does not need to be changed, the transformation cost is low, the temperature of the motor bearing in a high-temperature environment in summer is reduced, the service life of the bearing is prolonged, and the hidden trouble of equipment shutdown is eliminated.
Description
Technical Field
The utility model relates to the technical field of metallurgical equipment, in particular to a water cooling device of a motor.
Background
In the rolling production process of the thick and wide plates, a plurality of water supply systems such as a heating furnace cooling water supply system, a rolling mill cooling water supply system, a roller way cooling water supply system, a high-pressure water descaling water supply system, a hydraulic station cooling water supply system and the like are centralized in a comprehensive pump station so as to be convenient for management. Each water supply system is internally provided with 2-3 water pumps, the water pumps are driven by high-power high-voltage motors, and the high-voltage motors are cooled by an air cooling mode at present.
Under the hot weather of summer, because synthesize the indoor many motors of pump station and work simultaneously, the heat that the motor bearing generates heat makes indoor environment temperature high, and the air-cooled effect variation, motor bearing temperature probably increases to 90 ℃, reduces motor bearing life easily, can cause motor bearing or winding scaling loss when serious, leads to motor stall, cooling water supply to interrupt, brings very big potential safety hazard for production.
Among the prior art, water cooled machine or at the embedded heat dissipation pipeline of stator, or set up water circulative cooling system in motor casing, though good to the cooling effect of motor, but motor structure all changes, can't utilize current motor, and it is higher to change the motor cost.
In summary, how to provide a motor cooling device with lower cost is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to provide a motor cooling device, which does not need to change the existing motor structure, realizes water-cooling transformation of a motor, and has low transformation cost and good bearing cooling effect.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a motor water cooling device comprises a cold water source, a control device, a cooler, a temperature sensor and filters, wherein the cooler is used for being connected to the position of a bearing of a motor shell, the temperature sensor is used for detecting the temperature of the bearing of a motor, the filters are arranged at two ends of the cooler, a water inlet main valve is arranged at the water outlet end of the cold water source, and a water outlet main valve is arranged at the water inlet end of the cold water source;
at least one water inlet pipe is arranged between the water inlet main valve and the cooler, a water inlet valve is arranged on the water inlet pipe, at least one water outlet pipe is arranged between the water outlet main valve and the cooler, and a water outlet valve is arranged on the water outlet pipe;
the temperature sensor, the water inlet valve and the water outlet valve are all connected with the control device, when the temperature of the bearing exceeds the water cooling starting temperature, the water inlet valve and the water outlet valve are opened, and when the temperature of the bearing is lower than the water cooling stopping temperature, the water inlet valve and the water outlet valve are closed.
Preferably, the water inlet valves comprise a first water inlet valve and a second water inlet valve, the water outlet valves comprise a second water outlet valve and a second water outlet valve, the first water inlet valve and the second water outlet valve are communicated with the same side of the cooler, and the first water outlet valve and the second water inlet valve are communicated with the other side of the cooler;
when the bearing temperature exceeds the water cooling opening temperature, one of the inlet valves and one of the outlet valves are opened and closed after reaching a maximum working time, and the other of the inlet valves and the other of the outlet valves are opened;
when the bearing temperature is lower than the water cooling termination temperature, the water inlet valve and the water outlet valve are both closed.
Preferably, the water cooling starting temperature is 40 ℃ and the water cooling stopping temperature is 35 ℃.
Preferably, the maximum working time is 4 h.
Preferably, the cooler is connected to the filter by a metal hose.
Preferably, one end of the metal hose is connected to the cooler through an external thread joint, and the other end of the metal hose is connected to the filter through the external thread joint.
Preferably, the control device is a PLC control system, the PLC control system includes a control chip, a power supply, a water inlet valve relay connected to the water inlet valve, a water outlet valve relay connected to the water outlet valve, and a temperature controller connected to the temperature sensor, and the water inlet valve relay and the water outlet valve relay are both connected to the temperature controller.
Preferably, the water inlet main valve and the water outlet main valve are manual gate valves or manual ball valves.
The motor water cooling device provided by the utility model is characterized in that a cooler is arranged at the bearing position of a motor shell, when the temperature of the bearing exceeds the water cooling opening temperature, a control device controls a water inlet valve and a water outlet valve to be opened, cooling water flows from a cold water source through a main water inlet valve, the water inlet valve and a filter in sequence to enter the cooler, flows through the motor shell around the bearing and absorbs heat generated by rotation of the bearing, and then cooling water carrying heat flows back to the cold water source through the filter, the water outlet valve and a main water outlet valve and is cooled again at the cold water source.
When the temperature of the bearing is reduced to the water cooling termination temperature, the control device controls the water inlet valve and the water outlet valve to be closed, and the motor water cooling device stops working.
The motor water cooling device provided by the utility model has the advantages that the cooler is arranged in the area of the motor shell corresponding to the bearing, the structure of the existing motor is not required to be changed, the mixed cooling transformation of water cooling and air cooling of the motor is realized, the transformation cost is low, the temperature of the motor bearing in a high-temperature environment in summer is effectively reduced, the service life of the motor bearing is prolonged, and the hidden danger of equipment shutdown is eliminated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a water cooling apparatus for a motor according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a water cooling unit of the motor shown in FIG. 1;
fig. 3 is a schematic structural diagram of the control device.
In fig. 1-3:
1 is a cold water source, 2 is a main water inlet valve, 3 is a water inlet pipe, 31 is a water inlet valve, 4 is a filter, 5 is a metal hose, 51 is an external thread joint, 6 is a cooler, 7 is a water outlet pipe, 71 is a water outlet valve, 8 is a main water outlet valve, 9 is a PLC control system, 91 is a control chip, 92 is a circuit breaker, 93 is a power supply box, 94 is a water inlet valve relay, 95 is a water outlet valve relay, 96 is a manual mode button, 97 is an automatic mode button, 98 is a stop button, 99 is a temperature controller, and 10 is a temperature sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the utility model is to provide the motor cooling device, the existing motor structure is not required to be changed, the water-cooling transformation of the motor is realized, the transformation cost is low, and the bearing cooling effect is good.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a water cooling device for a motor according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a water cooling unit of the motor shown in FIG. 1; fig. 3 is a schematic structural diagram of the control device.
The utility model provides a motor water cooling device, which comprises a cold water source 1, a control device, a cooler 6, a temperature sensor 10 and filters 4, wherein the cooler 6 is used for being connected to the bearing position of a motor shell, the temperature sensor 10 is used for detecting the bearing temperature of a motor, the filters 4 are arranged at two ends of the cooler 6, a water inlet main valve 2 is arranged at the water outlet end of the cold water source 1, and a water outlet main valve 8 is arranged at the water inlet end of the cold water source 1; at least one water inlet pipe 3 is arranged between the main water inlet valve 2 and the cooler 6, a water inlet valve 31 is arranged on the water inlet pipe 3, at least one water outlet pipe 7 is arranged between the main water outlet valve 8 and the cooler 6, and a water outlet valve 71 is arranged on the water outlet pipe 7; the temperature sensor 10, the water inlet valve 31 and the water outlet valve 71 are all connected with a control device, when the bearing temperature exceeds the water cooling opening temperature, the water inlet valve 31 and the water outlet valve 71 are opened, and when the bearing temperature is lower than the water cooling termination temperature, the water inlet valve 31 and the water outlet valve 71 are closed.
Referring to fig. 1, a driving motor of a water pump of a plurality of water supply systems is arranged in a comprehensive pump station, a water inlet pipe 3, a water inlet valve 31, a filter 4, a cooler 6, a water outlet pipe 7 and a water outlet valve 71 which are used for performing water cooling heat dissipation on the same motor can be regarded as a motor water cooling unit, the motor water cooling units are connected in parallel between a water inlet main valve 2 and a water outlet main valve 8 of a cold water source 1, and the motor water cooling units are independently controlled and do not interfere with each other.
Referring to fig. 2, the cooler 6 is fixed at the bearing position of the motor casing, and can absorb heat transferred to the motor casing by friction of the bearing, thereby reducing the temperature of the bearing. The kind and size of the cooler 6 are determined according to the size of the bearing in actual production, heat generation amount and other factors.
Preferably, in order to improve the heat dissipation efficiency, the cooler 6 is a U-shaped cooler, the U-shaped cooler comprises a housing base and a U-shaped coil fixed to the housing base in a welded manner, and the housing base is fixed to the motor housing through bolts; the shell base is a copper plate, and the U-shaped coil pipe is a copper pipe.
The filter 4 is connected to both ends of the cooler 6 and is used for filtering cooling water entering and exiting the cooler 6 so as to reduce the blockage and scaling of the cooler 6.
Considering that the filter 4 needs to be cleaned and replaced regularly, it is preferable that the filter 4 is articulated with the cooler 6, so that the filter is convenient to detach and clean, and the maintenance of the water cooling device of the motor is facilitated.
Preferably, the filter 4 is a stainless steel pipeline filter, and a filter cartridge formed by punching a stainless steel thin plate is arranged in the filter 4.
Referring to fig. 1, the cooler 6 is preferably connected to the filter 4 through a metal hose 5. The diameter of the metal hose 5 is the same as that of the water inlet and outlet port of the cooler 6, and the material of the metal hose 5 is determined according to the requirements in actual production.
Preferably, one end of the metal hose 5 is connected to the cooler 6 through an external wire connector 51, and the other end of the metal hose 5 is connected to the filter 4 through the external wire connector 51.
Preferably, the male connector 51 is a spherical female male connector. The metal hose 5 is a spherical convex inner connecting wire and is connected with a spherical concave outer wire joint in a matching way.
The temperature sensor 10 is arranged at a heating part of a motor bearing and is connected with the control device, so that the control device can open or close the motor water cooling unit according to the bearing temperature.
The type, model and installation mode of the temperature sensor 10 are determined according to the actual production requirements by referring to the prior art, and are not described in detail herein.
The water inlet valve 31 and the water outlet valve 71 are respectively arranged on the water inlet pipe 3 and the water outlet pipe 7 and are used for controlling the on-off of the cooling water circulation. The inlet valve 31 and the outlet valve 71 are both connected with the control device, so that both are electrically operated valves, and the specific type and model of the electrically operated valves are determined according to the requirements in actual production.
Cold water source 1 is used for providing the cooling water and cooling down the cooling water of backward flow, and preferably, cold water source 1 is the lithium bromide refrigeration station and supplies the refrigeration water source, directly utilizes the cold water source of thick wide plate rolling workshop water supply system to reduce motor water cooling plant's equipment cost and transformation cost.
The water outlet end of the cold water source 1 is provided with a water inlet main valve 2, the water return end is provided with a water outlet main valve 8, and preferably, the water inlet main valve 2 and the water outlet main valve 8 are both manual gate valves or manual ball valves.
Of course, the water inlet main valve 2 and the water outlet main valve 8 may be provided as electric valves, and the electric valves may be connected to the control device to automatically control the control device.
When the temperature of the bearing exceeds the water cooling opening temperature, the control device controls the water inlet valve 31 and the water outlet valve 71 to be opened, cooling water flows from the cold water source 1 through the water inlet main valve 2, the water inlet valve 31 and the filter 4 in sequence to enter the cooler 6, flows through the motor shell around the bearing and absorbs heat generated by rotation of the bearing, and then cooling water carrying heat flows back to the cold water source 1 through the filter 4, the water outlet valve 71 and the water outlet main valve 8 and is cooled again at the position of the cold water source 1.
When the temperature of the bearing is reduced to the water cooling termination temperature, the control device controls the water inlet valve 31 and the water outlet valve 71 to be closed, and the motor water cooling device stops working.
In this embodiment, cooler 6 sets up in the region that the motor casing corresponds the bearing, need not to change the structure of current motor, has realized that the mixed cooling of motor water-cooling and forced air cooling reforms transform, reforms transform with low costsly, and reduced the temperature of motor bearing under the high temperature environment in summer effectively, improved the life of motor bearing, eliminated equipment shutdown hidden danger.
By integrating the influence of the bearing temperature on the service life and other factors, the water cooling starting temperature is preferably 40 ℃, and the water cooling stopping temperature is preferably 35 ℃, so that the bearing temperature is always kept at a lower temperature, and the burning loss of the bearing or a winding is avoided.
On the basis of the above embodiment, referring to fig. 2, the water inlet valve 31 includes a first water inlet valve and a second water inlet valve arranged in parallel, the water outlet valve 71 includes a first water outlet valve and a second water outlet valve arranged in parallel, the first water inlet valve and the second water outlet valve are communicated with the same side of the cooler 6, and the first water outlet valve and the second water inlet valve are communicated with the other side of the cooler 6; when the bearing temperature exceeds the water cooling opening temperature, one of the inlet valves 31 and one of the outlet valves 71 are opened and closed after reaching the maximum working time, and the other of the inlet valves 31 and the other of the outlet valves 71 are opened; when the bearing temperature is lower than the water cooling termination temperature, both the inlet valve 31 and the outlet valve 71 are closed.
Referring to fig. 2, the first inlet valve, the second outlet valve, the second inlet valve and the first outlet valve are arranged in sequence from left to right.
When the temperature of the bearing exceeds the water cooling opening temperature, the control device controls the first water inlet valve and the first water outlet valve to be opened, cooling water flows to the right side from the left side of the motor shell, and cooling water circulation is completed through the cold water source 1; when the first water inlet valve and the first water outlet valve reach the maximum working time, the control device controls the first water inlet valve and the first water outlet valve to be closed, the second water inlet valve and the second water outlet valve to be opened, cooling water flows to the left side from the right side of the motor shell, and cooling water circulation is completed through the cold water source 1; when the second water inlet valve and the second water outlet valve reach the maximum working time, the control device controls the second water inlet valve and the second water outlet valve to be closed and the first water inlet valve and the first water outlet valve to be opened; and when the temperature of the bearing is lower than the water cooling termination temperature, the control device controls all the water inlet valves 31 and all the water outlet valves 71 to be closed.
In this embodiment, two different circulation loops are used to change the flow direction of cooling water in the cooler 6 at regular time, thereby preventing the pipeline in the cooler 6 from being blocked and scaled.
Preferably, the maximum working time can be set to 4h, the number of changes of the flow direction of the cooling water is less, and the blockage and scaling conditions of the cooler 6 can be effectively improved.
On the basis of the above embodiment, the control device is a PLC control system 9, the PLC control system 9 includes a control chip 91, a power supply, a water inlet relay 94 connected to the water inlet valve 31, a water outlet relay 95 connected to the water outlet valve 71, and a temperature controller 99 connected to the temperature sensor 10, and both the water inlet relay 94 and the water outlet relay 95 are connected to the temperature controller 99.
Referring to fig. 3, the PLC control power supply supplies power to the control chip 91 by using a power box 93, and controls the power of the power box 93 through a breaker 92; in order to realize the switching between the manual control and the automatic control, the control chip 91 is connected with a manual mode button 96, an automatic mode button 97, a forward circulation button, a reverse circulation button and a stop button 98, wherein when the forward circulation button is switched on, a first water inlet valve is switched on with a first water outlet valve, and when the reverse circulation button is switched on, a second water inlet valve is switched on with a second water outlet valve.
When the manual mode button 96 is turned on, the flow direction of cooling water in the cooler 6 can be controlled by the forward circulation button and the reverse circulation button;
when the automatic mode button 97 is switched on, the positive circulation button is automatically switched on, and the first water inlet valve is switched on with the first water outlet valve; after the first water inlet valve and the first water outlet valve reach the maximum working time, the positive circulation button is automatically closed, the reverse circulation button is automatically switched on, the first water inlet valve and the first water outlet valve are closed, and the second water inlet valve and the second water outlet valve are switched on; after the second water inlet valve and the second water outlet valve reach the maximum working time, the reverse circulation button is closed, the forward circulation button is switched on, the second water inlet valve and the second water outlet valve are closed, and the first water inlet valve and the first water outlet valve are switched on;
when the stop button 98 is on, both the inlet valve 31 and the outlet valve 71 are closed, whether currently manually controlled or automatically controlled.
It should be noted that the first and second inlet valves, and the first and second outlet valves are used only for distinguishing the difference of the positions, and do not limit the sequence.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The water cooling device for the motor provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. A motor water cooling device is characterized by comprising a cold water source (1), a control device, a cooler (6) connected to the position of a bearing of a motor shell, a temperature sensor (10) used for detecting the temperature of the bearing of a motor and filters (4) arranged at two ends of the cooler (6), wherein a water inlet main valve (2) is arranged at the water outlet end of the cold water source (1), and a water outlet main valve (8) is arranged at the water inlet end of the cold water source (1);
at least one water inlet pipe (3) is arranged between the water inlet main valve (2) and the cooler (6), a water inlet valve (31) is arranged on the water inlet pipe (3), at least one water outlet pipe (7) is arranged between the water outlet main valve (8) and the cooler (6), and a water outlet valve (71) is arranged on the water outlet pipe (7);
the temperature sensor (10), the water inlet valve (31) and the water outlet valve (71) are connected with the control device, when the temperature of the bearing exceeds the water cooling opening temperature, the water inlet valve (31) and the water outlet valve (71) are opened, and when the temperature of the bearing is lower than the water cooling termination temperature, the water inlet valve (31) and the water outlet valve (71) are closed.
2. The electro-mechanical water cooling device according to claim 1, wherein the water inlet valve (31) comprises a first water inlet valve and a second water inlet valve, the water outlet valve (71) comprises a second water outlet valve and a second water outlet valve, the first water inlet valve and the second water outlet valve are communicated with the same side of the cooler (6), and the first water outlet valve and the second water inlet valve are communicated with the other side of the cooler (6);
when the bearing temperature exceeds the water-cooling opening temperature, one of the inlet valves (31) and one of the outlet valves (71) are opened and closed after reaching a maximum working time, and the other of the inlet valves (31) and the other of the outlet valves (71) are opened;
when the bearing temperature is lower than the water cooling termination temperature, the water inlet valve (31) and the water outlet valve (71) are both closed.
3. The motor water cooling device according to claim 2, wherein the water cooling start temperature is 40 ℃ and the water cooling stop temperature is 35 ℃.
4. The motor water cooling device of claim 2, wherein the maximum working time is 4 h.
5. The motor water cooling device according to any one of claims 1-4, characterized in that the cooler (6) is connected with the filter (4) through a metal hose (5).
6. The motor water cooling device according to claim 5, characterized in that one end of the metal hose (5) is connected with the cooler (6) through an external wire connector (51), and the other end of the metal hose (5) is connected with the filter (4) through the external wire connector (51).
7. The motor water cooling device according to any one of claims 1-4, characterized in that the control device is a PLC control system (9), the PLC control system (9) comprises a control chip (91), a power supply source, an inlet valve relay (94) connected with the inlet valve (31), an outlet valve relay (95) connected with the outlet valve (71), and a thermostat (99) connected with the temperature sensor (10), and the inlet valve relay (94) and the outlet valve relay (95) are both connected with the thermostat (99).
8. The motor water cooling device according to any one of claims 1 to 4, characterized in that the water inlet main valve (2) and the water outlet main valve (8) are manual gate valves or manual ball valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368081.2U CN215528806U (en) | 2021-06-18 | 2021-06-18 | Motor water cooling plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121368081.2U CN215528806U (en) | 2021-06-18 | 2021-06-18 | Motor water cooling plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215528806U true CN215528806U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121368081.2U Active CN215528806U (en) | 2021-06-18 | 2021-06-18 | Motor water cooling plant |
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| CN (1) | CN215528806U (en) |
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2021
- 2021-06-18 CN CN202121368081.2U patent/CN215528806U/en active Active
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