Motor cooling device of film production line
By designing a heat exchanger and automatic dosing system for centrally installing the motor in the BOPP production line, the motor cooling water temperature and water quality problems are solved, efficient cooling and stable production are achieved, and motor damage and production shutdown are avoided.
Patent Information
- Application Number
- CN202420960903.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-06
AI Technical Summary
In the BOPP production line, too high or too low the motor cooling water temperature will cause the motor to be damaged, and conventional cooling devices will cause the micro pipelines inside the motor to be blocked due to water quality problems, resulting in production shutdowns and economic losses.
A motor cooling device for film production line is designed, using a heat exchanger with centrally installed motor, combined with a temperature regulation module and a dosing monitoring module, by controlling the flow rate of frozen water and automatic dosing, the constant temperature and water quality of the cooling water are maintained to prevent fineness. Pipeline clogged.
It realizes efficient heat exchange, prevents the motor from burning out, ensures cooling water quality, improves the operating stability of the production line, and reduces the loss of shutdown.
Smart Images
Figure CN222321311U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cooling devices, in particular to a motor cooling device for a film production line. Background Art
[0002] In the BOPP production line, there are a large number of motors that need water cooling, and the layout is scattered. Most of them use cooling water to cool the motors. When the cooling water temperature is too high, the running motor will still heat up. When the cooling water temperature is too low, condensed water will be produced. Both of the above situations will cause the motor to burn out. In addition, conventional cooling devices have the problem of water quality problems of cooling water, which may cause the internal micro-pipes of the motors used to be blocked. The motor spare parts are expensive and have a long delivery time. The running BOPP production line needs to stop producing products, which is easy to cause large losses. Utility Model Content
[0003] The purpose of the utility model is to provide a motor cooling device for a film production line to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.
[0004] The utility model solves the technical problem by providing a motor cooling device for a film production line, comprising:
[0005] A running motor, wherein a plurality of the running motors are provided, and each of the running motors is provided with a water cooling pipe;
[0006] A heat exchanger, wherein the heat exchanger is provided with a first pipe and a second pipe, wherein the first pipe is communicated with an external chilled water pipe, a control valve is provided on the first pipe, a plurality of the running motors are centrally installed on the second pipe, and the second pipe is communicated with a water cooling pipe of each of the running motors;
[0007] A dosing monitoring module, the dosing monitoring module is connected to the second pipeline, and the dosing monitoring module is used to detect the current conductivity of the cooling water in the second pipeline and add the agent to the second pipeline;
[0008] A temperature regulating module, which is disposed on the second pipe and is used to detect the current water temperature and output a temperature regulating signal;
[0009] The control module is connected to the control valve, the dosing monitoring module and the temperature adjustment module respectively, and is used to receive the temperature adjustment signal and the current conductivity, and to adjust the opening of the control valve and the dosing monitoring module.
[0010] Furthermore, the second pipeline is provided with a water outlet pipeline and a water return pipeline;
[0011] The water outlet pipe is in communication with one end of the water cooling pipe of each of the running motors;
[0012] The return water pipeline is connected to the other end of the water cooling pipeline of each running motor, and the return water pipeline is also connected to the dosing monitoring module.
[0013] Further, the dosing monitoring module includes:
[0014] A dosing machine, the dosing machine is connected to the return water pipeline, the dosing machine is connected to the control module, and the dosing machine is used to put the medicine into the second pipeline;
[0015] A water quality detector is arranged on the return water pipe, the water quality detector is connected to the control module, and the water quality detector is used to detect the current conductivity.
[0016] Furthermore, the temperature adjustment module comprises:
[0017] A temperature sensor is provided on the water outlet pipe and is used to collect the current water temperature;
[0018] The temperature control meter is connected to the temperature sensor and the control module respectively, and is used to receive the current water temperature and output the temperature adjustment signal.
[0019] Furthermore, a motor cooling device for a film production line further includes: a high-position expansion water tank;
[0020] The high-level expansion water tank is communicated with the return water pipeline and the dosing machine respectively, and the high-level expansion water tank is connected to the control module. The high-level expansion water tank is used to supply cooling water to the return water pipeline.
[0021] Furthermore, a motor cooling device for a film production line further includes: a drain valve;
[0022] The drain valve is arranged on the return water pipeline, the drain valve is connected to the control module, and the drain valve is used to discharge the sewage in the return water pipeline.
[0023] Furthermore, a motor cooling device for a film production line also includes: a circulating water pump; the circulating water pump is arranged on the return water pipeline, and the circulating water pump is connected to the control module.
[0024] Furthermore, each water cooling pipe of the running motor is provided with a drain valve.
[0025] Furthermore, the heat exchanger is a plate heat exchanger.
[0026] Furthermore, the control valve is an electronic pressure valve.
[0027] The beneficial effects of the utility model are: the running motors that need to be cooled on the production line are unified and centrally installed on the second pipe of the heat exchanger, so that they are centrally installed on the same cooling pipe and separated from other equipment to ensure the quality of cooling water. The temperature adjustment module and the control valve are used to adjust the chilled water flow of the chilled water input to the first pipe, so as to adjust the exchange volume of the heat exchanger, provide efficient heat exchange, keep the cooling water constant temperature to prevent the motor from burning out, and use the dosing monitoring module and the control module to realize automatic and accurate dosing of the medicine, ensure the quality of cooling water, and prevent the fine water pipes in the motor from being blocked, thereby improving the stability of the production line operation and preventing the production line from stopping and causing large losses. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 This is a schematic diagram of the structure and flow path of a motor cooling device for a film production line provided by an embodiment of the utility model;
[0029] Figure 2 This is a schematic diagram of the structure and flow path of a motor cooling device for a film production line provided by another embodiment of the utility model;
[0030] Figure 3 It is a schematic diagram of the framework of a motor cooling device for a film production line provided by one embodiment of the utility model.
[0031] Figure numerals: 100, running motor, 110, drain valve, 120, water cooling pipe, 200, heat exchanger, 210, first pipe, 220, second pipe, 230, control valve, 221, outlet pipe, 222, return pipe, 300, dosing monitoring module, 310, dosing machine, 320, water quality detector, 400, temperature adjustment module, 410, temperature sensor, 500, high-level expansion water tank, 600, drain valve, 700, circulating water pump. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and cannot be understood as limiting the present utility model.
[0033] It should be noted that although the functional module division is performed in the schematic diagram, in some cases, the module division can be different from that in the system.
[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.
[0035] In the description of the present invention, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.
[0036] In the BOPP production line, there are a large number of motors that need water cooling, and the layout is scattered. In addition, the motors are expensive and have a long delivery time. During the water cooling process, the motors are easily damaged due to water quality problems.
[0037] Reference Figures 1 to 3 In some embodiments of the present invention, a motor cooling device for a film production line includes: a running motor 100, a heat exchanger 200, a control module, a dosing monitoring module 300 and a temperature regulating module 400.
[0038] There are several running motors 100, and each running motor 100 is installed with a water cooling pipe 120. Among them, a drain valve 110 is provided at the water delivery end of the water cooling pipe 120, and the running motor 100 can be a nine-wire motor or a ten-wire motor.
[0039] The heat exchanger 200 is provided with a first pipe 210 and a second pipe 220. The first pipe 210 is connected to an external chilled water pipe, and a control valve 230 is installed on the water inlet pipe of the first pipe 210. The control valve 230 can adjust the chilled water flow in the first pipe 210, and the control valve 230 is electrically connected to the control module. The heat exchanger 200 is a plate heat exchanger, and the control valve 230 is an electronic pressure valve.
[0040] When several running motors 100 are installed on the second pipe 220, the water cooling pipe 120 is connected to the second pipe 220 to unify the running motors 100 that need to be cooled on the production line and install them on the same cooling pipe, separate them from other equipment, ensure the water quality of the cooling water, and prevent the fine pipes in the running motors 100 from being blocked.
[0041] The dosing monitoring module 300 is installed on the second pipe 220, the dosing monitoring module 300 is in communication with the second pipe 220, and the output end of the dosing monitoring module 300 is electrically connected to the input end of the control module. The dosing monitoring module 300 can detect the current conductivity of the cooling water in the second pipe 220 and output the current conductivity to the control module. The dosing monitoring module 300 can also add agents to the second pipe 220, thereby optimizing the water quality.
[0042] The temperature adjustment module 400 is installed on the second pipe 220, and the output end of the temperature adjustment module 400 is electrically connected to the input end of the control module. The temperature adjustment module 400 can detect the temperature of the cooling water in the second pipe 220, obtain the current water temperature, and output a temperature adjustment signal to the control module based on the current water temperature.
[0043] The output end of the control module is electrically connected to the control valve 230 . The control module can receive a temperature adjustment signal to adjust the opening of the control valve 230 . The control module can also receive the current conductivity to regulate the dosing monitoring module 300 .
[0044] In one embodiment, the temperature adjustment module 400 detects the temperature of the cooling water in the second pipe 220, obtains the current water temperature, compares the current water temperature with the set temperature, and outputs a temperature adjustment signal to the control module. The control module receives the temperature adjustment signal and adjusts the opening of the control valve 230 to open or close the control valve 230, thereby controlling the chilled water flow rate of the chilled water input from the external chilled water pipeline to the first pipe 210, thereby adjusting the exchange volume of the heat exchanger 200 and providing efficient heat exchange.
[0045] In one embodiment, the dosing monitoring module 300 detects the conductivity of the cooling water in the second pipe 220, obtains the current conductivity, and outputs the current conductivity to the control module. The control module receives the current conductivity, compares the current conductivity with the set conductivity, and drives the dosing monitoring module 300 to add the agent to the second pipe 220 to achieve automatic dosing, maintain the drug content above the minimum drug amount line, change within a small range, and finally tend to the stable balance line. Through precise automatic dosing, the amount of water treatment drugs in the cooling device is strictly controlled to optimize the water quality.
[0046] In this embodiment, the first pipe 210 can be a heating side, and the second pipe 220 can be a cooling side. That is, the heating side of the heat exchanger 200 is connected to an external chilled water pipe to transfer heat from the low-temperature fluid in the heating side to the high-temperature fluid in the cooling side. A temperature regulating module 400 is provided on the cooling side of the heat exchanger 200, and the cooling side of the heat exchanger 200 is connected to the running motor 100 and the dosing monitoring module 300 to transfer heat from the high-temperature fluid in the cooling side to the low-temperature fluid in the heating side.
[0047] In this embodiment, the flow path of the cooling water on the second pipe 220 of the heat exchanger 200 is as follows: after the cooling water undergoes heat exchange in the heat exchanger 200, it flows through the temperature regulating module 400 and flows into the water cooling pipe 120 in the running motor 100 that needs to be cooled, so as to achieve cooling of the motor; then, through the drain valve 110 on the water cooling pipe 120, the cooling water with heat flows back to the second pipe 220, flows through the dosing monitoring module 300, and finally flows into the heat exchanger 200 for heat exchange again, so as to form a closed-loop cooling circuit.
[0048] In the scheme of the above embodiment, the running motors 100 required to be cooled on the production line are unified and centrally installed on the same cooling pipeline, separated from other equipment, to ensure the water quality of the cooling water. The temperature regulating module 400 and the control valve 230 are used to adjust the chilled water flow of the chilled water input to the first pipeline 210, so as to adjust the exchange volume of the heat exchanger 200, provide efficient heat exchange, and keep the cooling water constant to prevent the motor from burning out. A dosing monitoring module 300 is set in the closed-loop cooling loop to automatically add the agent to the second pipeline 220, maintain the drug content above the minimum drug amount line, change within a small range of variation, and finally tend to the stable equilibrium line. Through precise automatic dosing, the amount of water treatment drugs in the cooling device is strictly controlled, the water quality is optimized, and the blockage of the micro-water pipes in the motor is reduced, thereby improving the stability of the production line operation and preventing the production line from stopping and causing large losses. So that the motor cooling device in the utility model can meet the international standards (PH: 8-9, conductivity <100us / cm, hardness <0.1d, oxygen content <0.05mg / l, iron content <0.2mg / l, silicon dioxide content <10mg / l).
[0049] Reference Figures 1 to 3 In some embodiments of the present invention, the second pipeline 220 includes: a water outlet pipeline 221 and a water return pipeline 222 .
[0050] The water outlet pipe 221 is connected to one end of the water cooling pipe 120 of each running motor 100, and the other end of the water cooling pipe 120 of each running motor 100 is connected to the return pipe 222, so that several running motors 100 can be uniformly installed on the same cooling pipe.
[0051] The temperature regulating module 400 is installed on the water outlet pipe 221 so that the temperature regulating module 400 can obtain the current water temperature after the heat exchange. The water return pipe 222 is connected to the dosing monitoring module 300 to optimize the water quality.
[0052] Reference Figures 1 to 3 In some embodiments of the present invention, the dosing monitoring module 300 includes: a dosing machine 310 and a water quality detector 320 .
[0053] The dosing machine 310 is in communication with the return pipe 222 of the second pipe 220 , and the input end of the dosing machine 310 is electrically connected to the output end of the control module. The dosing machine 310 can put the agent into the return pipe 222 of the second pipe 220 .
[0054] The water quality detector 320 is installed on the return pipe 222, and the water quality detector 320 is also connected in parallel with the return pipe 222 of the second pipe 220. The output end of the water quality detector 320 is electrically connected to the input end of the control module, and the water quality detector 320 can detect the current conductivity of the return pipe 222 in the second pipe 220.
[0055] The water quality detector 320 may be a conductivity sensor, and the specific type of the conductivity sensor is not specifically limited in this embodiment.
[0056] In one embodiment, the water quality detector 320 detects the current conductivity and outputs the current conductivity to the control module. The control module receives the current conductivity, compares the current conductivity with the set conductivity, and outputs a dosing adjustment signal to the dosing machine 310. The dosing machine 310 receives the dosing adjustment signal and adjusts the amount of medicine to achieve automatic dosing, maintaining the drug content above the minimum drug amount line, changing within a small range, and finally tending to a stable equilibrium line. Through precise automatic dosing, the amount of water treatment medicine in the cooling device is strictly controlled to optimize water quality.
[0057] A dosing monitoring module 300 is provided in the closed-loop cooling loop to automatically add drugs to the second pipe 220, maintain the drug content above the minimum drug content line, change within a small range, and finally tend to the stable equilibrium line. Through precise automatic dosing, the amount of water treatment drugs in the cooling device is strictly controlled, the water quality is optimized, and the blockage of the micro-water pipes in the motor is reduced, thereby improving the stability of the production line operation and preventing large losses caused by production line shutdown.
[0058] Reference Figures 1 to 3 In some embodiments of the present invention, the temperature adjustment module 400 includes: a temperature sensor 410 and a temperature control meter.
[0059] The temperature sensor 410 is installed on the outlet pipe 221 in the second pipe 220, and the output end of the temperature sensor 410 is electrically connected to the input end of the temperature control meter. The temperature sensor 410 can detect the current water temperature of the outlet pipe 221 in the second pipe 220 and output the current water temperature to the temperature control meter.
[0060] The output end of the temperature control meter is electrically connected to the input end of the control module. The temperature control meter can receive the current water temperature, compare the current water temperature with the set temperature, and output a temperature control signal to the control module. The control module receives the temperature control signal and adjusts the opening of the control valve 230 on the first pipe 210 to adjust the flow rate of chilled water, wherein the temperature control signal is a current signal of 4mA to 20mA.
[0061] In one embodiment, the temperature sensor 410 detects the current water temperature and feeds the current water temperature back to the temperature control meter. The temperature control meter receives the current water temperature, compares it with the set temperature, and outputs a current signal of 4mA to 20mA to the control module. The control module receives the current signal and opens or closes the control valve 230 according to the size of the current signal, thereby adjusting the chilled water flow rate and controlling the heat exchange amount of the heat exchanger 200, thereby achieving the stability of the motor cooling water temperature.
[0062] The temperature regulating module 400 and the control valve 230 are used to adjust the chilled water flow rate of the chilled water input to the first pipe 210, so as to adjust the exchange volume of the heat exchanger 200, provide efficient heat exchange, maintain a constant temperature of the cooling water to prevent the motor from burning out, improve the stability of the production line operation, and prevent the production line from stopping and causing large losses.
[0063] Reference Figures 1 to 3 In some embodiments of the present invention, the motor cooling device further includes: a high-level expansion water tank 500, a drain valve 600 and a circulating water pump 700.
[0064] One end of the high-level expansion water tank 500 is connected to the dosing machine 310 , and the other end of the high-level expansion water tank 500 is connected to the return water pipe 222 in the second pipe 220 . The output end of the control module is also electrically connected to the high-level expansion water tank 500 .
[0065] The high-level expansion water tank 500 can output cooling water to the return water pipe 222 to achieve water replenishment. The medicine injected by the dosing machine 310 will flow into the return water pipe 222 through the high-level expansion water tank 500.
[0066] In one embodiment, the control module receives the current conductivity, compares the current conductivity with the set conductivity, and outputs a dosing adjustment signal to the dosing machine 310 and the high-level expansion water tank 500. The dosing machine 310 receives the dosing adjustment signal and adjusts the amount of medicine added. The high-level expansion water tank 500 receives the dosing adjustment signal and adjusts the flow rate of the output cooling water. The output cooling water is mixed with the medicine and flows into the return water pipe 222.
[0067] The drain valve 600 is electrically connected to the output end of the control module, and the drain valve 600 is installed on the return pipe 222, and the drain valve 600 is communicated with the return pipe 222. The drain valve 600 is used to discharge the sewage in the return pipe 222.
[0068] In one embodiment, the control module receives the current conductivity, compares the current conductivity with the set conductivity, and outputs a dosing adjustment signal to the dosing machine 310 and the high-level expansion water tank 500. The control module controls the drain valve 600 to open, and the drain valve 600 discharges a certain flow of sewage. The dosing machine 310 receives the dosing adjustment signal, and the dosing machine 310 receives the dosing adjustment signal to adjust the amount of medicine added. The high-level expansion water tank 500 receives the dosing adjustment signal and adjusts the flow of the output cooling water to supplement a certain flow of clean cooling water. The output cooling water is mixed with the medicine and flows into the return pipe 222.
[0069] In this embodiment, through the conductivity detected by the water quality detector 320, the control module can regulate the dosing machine 310, the drain valve 600 and the high-level expansion water tank 500, so as to ensure the water quality of the cooling water and the stable operation of the cooling device.
[0070] The control module is electrically connected to the circulating water pump 700, which is installed in the return water pipe 222. The circulating water pump 700 is connected to the return water pipe 222. The circulating water pump 700 is located between the drain valve 600 and the drain valve 110 of the water cooling pipe 120 of the running motor 100. The circulating water pump 700 is used to supply the cooling water in the return water pipe 222 to the heat exchanger 200 to realize the closed circulation of cooling water.
[0071] The preferred implementation methods of the utility model are specifically described above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A motor cooling device for a film production line, characterized in that: include: A running motor, wherein a plurality of the running motors are provided, and each of the running motors is provided with a water cooling pipe; A heat exchanger, wherein the heat exchanger is provided with a first pipe and a second pipe, wherein the first pipe is communicated with an external chilled water pipe, a control valve is provided on the first pipe, a plurality of the running motors are centrally installed on the second pipe, and the second pipe is communicated with a water cooling pipe of each of the running motors; A dosing monitoring module, the dosing monitoring module is connected to the second pipeline, and the dosing monitoring module is used to detect the current conductivity of the cooling water in the second pipeline and add the agent to the second pipeline; A temperature regulating module, which is disposed on the second pipe and is used to detect the current water temperature and output a temperature regulating signal; The control module is connected to the control valve, the dosing monitoring module and the temperature adjustment module respectively, and is used to receive the temperature adjustment signal and the current conductivity, and to adjust the opening of the control valve and the dosing monitoring module.
2. The motor cooling device for a film production line according to claim 1, characterized in that: The second pipeline is provided with a water outlet pipeline and a water return pipeline; The water outlet pipe is in communication with one end of the water cooling pipe of each of the running motors; The return water pipeline is connected to the other end of the water cooling pipeline of each running motor, and the return water pipeline is also connected to the dosing monitoring module.
3. The motor cooling device for a film production line according to claim 2, characterized in that: The dosing monitoring module comprises: A dosing machine, the dosing machine is connected to the return water pipeline, the dosing machine is connected to the control module, and the dosing machine is used to put the medicine into the second pipeline; A water quality detector is arranged on the return water pipe, the water quality detector is connected to the control module, and the water quality detector is used to detect the current conductivity.
4. The motor cooling device for a film production line according to claim 2, characterized in that: The temperature regulating module comprises: A temperature sensor is provided on the water outlet pipe and is used to collect the current water temperature; The temperature control meter is connected to the temperature sensor and the control module respectively, and is used to receive the current water temperature and output the temperature adjustment signal.
5. The motor cooling device for a film production line according to claim 3, characterized in that: Also includes: High expansion tank; The high-level expansion water tank is communicated with the return water pipeline and the dosing machine respectively, and the high-level expansion water tank is connected to the control module. The high-level expansion water tank is used to supply cooling water to the return water pipeline.
6. The motor cooling device for a film production line according to claim 2, characterized in that: Also includes: Blowdown valve; The drain valve is arranged on the return water pipeline, the drain valve is connected to the control module, and the drain valve is used to discharge the sewage in the return water pipeline.
7. The motor cooling device for a film production line according to claim 2, characterized in that: Also includes: Circulating water pump; the circulating water pump is arranged on the return water pipeline, and the circulating water pump is connected to the control module.
8. The motor cooling device for a film production line according to claim 1, characterized in that: Each water cooling pipe of the running motor is provided with a drain valve.
9. The motor cooling device for a film production line according to claim 1, characterized in that: The heat exchanger is a plate heat exchanger.
10. The motor cooling device for a film production line according to claim 1, characterized in that: The control valve is an electronic pressure valve.