CN209345485U - A kind of electrical control cabinet cooling system - Google Patents

Abstract

The utility model discloses a cooling system for an electric control cabinet, comprising: a water cooling device provided with cooling water, an evaporation device connected with the water cooling device and used for evaporating the cooling water, a heating device, a temperature sensor, a humidity sensor, a control device and The cooling fan installed near the evaporation outlet of the evaporation device is used to bring the evaporated cooling water into the electrical control cabinet for cooling; the water cooling device, cooling fan, heating device, temperature sensor, and humidity sensor are all connected to the control device; The control device is used to control the water cooling device and the cooling fan to turn on for cooling when the temperature detected by the temperature sensor is greater than the preset temperature threshold; when the humidity detected by the humidity sensor is greater than the preset humidity threshold, control the water cooling device and the cooling fan to turn off And control the heating device to heat and dehumidify. The application can effectively eliminate the condensed water formed in the electrical control cabinet and realize accurate and effective cooling in the control cabinet.

Description

An electric control cabinet cooling system

technical field

The utility model relates to the related technical field of cooling control in electrical equipment, in particular to a cooling system for an electrical control cabinet.

Background technique

Water-cooled electrical control cabinets are mainly used for cooling precision electronic control circuits. However, during the use of current electrical control cabinets, the temperature difference between the circulating cooling water and the heating device in the electrical control cabinet is too large, which makes electronic equipment and electrical components It is prone to condensation and damp, which will cause short circuit and insulation breakdown, resulting in downtime for maintenance and serious losses to related enterprises. Especially with the increase of the power of electronic and electrical components, the calorific value is gradually increasing, and the exhaust cooling method currently used cannot automatically change the cooling effect, and the traditional method of cooling by relying on the inlet and outlet fans cannot effectively prevent condensation water production.

Therefore, in the process of realizing the present application, the inventors found that there are problems of unavoidable condensed water and poor cooling effect in the existing electrical control cabinet.

Utility model content

In view of this, the purpose of this utility model is to propose a cooling system for the electrical control cabinet, which can effectively eliminate the condensed water formed in the electrical control cabinet and realize accurate and effective cooling in the control cabinet.

Based on the above purpose, the electric control cabinet cooling system provided by the utility model includes: a water cooling device provided with cooling water, an evaporation device connected to the water cooling device and used for evaporating the cooling water, a heating device, a temperature sensor, and a humidity sensor , a control device and a cooling fan arranged near the evaporation outlet of the evaporation device, the cooling fan is used to bring evaporated cooling water into the electrical control cabinet for cooling;

The water cooling device, cooling fan, heating device, temperature sensor, and humidity sensor are all connected to the control device; the control device is used to control the water cooling device when the temperature detected by the temperature sensor is greater than a preset temperature threshold. The device and the cooling fan are turned on for cooling; when the humidity detected by the humidity sensor is greater than a preset humidity threshold, the water cooling device and the cooling fan are controlled to be turned off and the heating device is controlled to perform heating and dehumidification.

Optionally, the evaporation outlet of the evaporation device is further provided with a waterproof baffle, and the waterproof baffle is used to prevent the evaporated cooling water from being directly blown out by the cooling fan.

Optionally, the waterproof baffle is a waterproof louver.

Optionally, a water accumulation tray is provided under the waterproof baffle and the evaporation device, and the water accumulation tray is used to receive accumulated water generated by the waterproof baffle and the evaporation device.

Optionally, the heating device is arranged between the evaporating device and the cooling fan.

Optionally, the cooling system of the electric control cabinet further includes at least one circulation fan, which is used to form a circulating air flow in the electric control cabinet, and the circulation fan is arranged at the corresponding airflow circulation in the electric control cabinet. turning position.

Optionally, both the circulation fan and the cooling fan are axial flow fans.

Optionally, the cooling fan and the evaporation device form a closed cylinder with an inlet and an outlet, one end of the closed cylinder corresponds to the evaporation outlet of the evaporation device, and the other end of the closed cylinder corresponds to the The air inlet of the cooling fan is provided with a filter screen.

Optionally, there are multiple temperature sensors and humidity sensors that are evenly distributed in the electrical control cabinet.

Optionally, the cooling system of the electrical control cabinet is built in the electrical control cabinet.

It can be seen from the above that the cooling system of the electrical control cabinet provided by the utility model can perform heating and dehumidification based on humidity monitoring by adding an evaporation device and a humidity sensor used in conjunction with it, thereby avoiding excessive humidity in the control cabinet. The problem of condensed water occurs due to high temperature; the effective monitoring of temperature and the improvement of cooling accuracy can be realized through the use of temperature sensors and water cooling devices. In addition, this application also increases the evaporation device to allow the cooling water to evaporate into the control cabinet to improve the heat dissipation effect of the cooling water. The cooling fan installed at the evaporation outlet allows the evaporated cooling water to enter the various parts of the control cabinet more quickly. place to improve cooling efficiency. At the same time, based on the electrical control cabinet cooling system in this application, the control device monitors and automatically adjusts the above-mentioned water cooling process and heating and dehumidification process in real time, so as to realize automatic and efficient operation. Therefore, the electrical control cabinet cooling system described in the present application can effectively eliminate the condensed water formed in the electrical control cabinet and realize accurate and effective cooling in the control cabinet.

Description of drawings

Fig. 1 is the structural representation of the electric control cabinet cooling system provided by one embodiment of the utility model;

Fig. 2 is a partial schematic diagram corresponding to Fig. 1;

Figure 3 is a schematic diagram of the control principle of the cooling system of the electrical control cabinet;

Fig. 4 is a schematic structural diagram of a cooling system for an electrical control cabinet provided by another embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities with the same name but different parameters or different parameters. It can be seen that "first" and "second" " is only for the convenience of expression, and should not be understood as a limitation on the embodiments of the present utility model, and the subsequent embodiments will not explain them one by one.

The present application aims at the problems of poor cooling effect of water cooling in current electrical control cabinets and damage to electrical equipment caused by condensed water due to water cooling, and proposes an effective cooling system to overcome the above problems.

Specifically, referring to FIG. 1 , an electrical control cabinet cooling system proposed by an embodiment of the present application, FIG. 2 is a partial schematic diagram corresponding to FIG. 1 ; FIG. 3 is a schematic diagram of the control principle of the electrical control cabinet cooling system. As can be seen from the figure, the electrical control cabinet cooling system includes: a water cooling device 2 provided with cooling water, an evaporation device 3 connected to the water cooling device 2 and used to evaporate the cooling water, a heating device 4, a temperature sensor 5, and a humidity sensor 6. The control device 7 and the cooling fan 8 arranged near the evaporation outlet of the evaporation device 3, the cooling fan 8 is used to bring the evaporated cooling water into the electrical control cabinet 1 for cooling; wherein the water cooling device 2. The cooling fan 8, the heating device 4, the temperature sensor 5, and the humidity sensor 6 are all connected to the control device 7; the control device 7 is used for when the temperature detected by the temperature sensor 5 is greater than the preset temperature threshold, Control the water cooling device 2 and the cooling fan 8 to turn on for cooling; when the humidity detected by the humidity sensor 6 is greater than the preset humidity threshold, control the water cooling device 2 and the cooling fan 8 to turn off and control the heating device 4 to heat Dehumidification. Wherein, the water cooling device 2 can be controlled to be closed by the battery valve 14 . Of course, other control forms may also be used, which are not limited in this embodiment.

That is to say, the electrical control cabinet cooling system of the present application adopts the cooperation of the water cooling device 2 and the evaporating device 3 so that the cooling water can evaporate into the entire control cabinet 1 to cool related devices, and at the same time, the cooling fan 8 is used to make the evaporated cooling water diffuse quickly Into the entire control cabinet 1 , in this way, the effective cooling of the control cabinet 1 is realized, and based on the detection of the temperature sensor 5 , the cooling can be made more accurate and effective. In order to further solve the problem of condensed water, this application proposes to use the heating device 4 and the humidity sensor 6 to cooperate. By detecting the humidity, the humidity can be reduced by heating when the humidity exceeds the preset threshold, thereby avoiding condensed water caused by excessive humidity. and corrosion of components.

It should be noted that the electrical control cabinets described in the embodiments of this application only include the cooling of control cabinets related to precision electronics, and can also include other types of cabinets with cooling requirements. The improvement of this application mainly lies in how to prevent and control the control cabinets. Condensate and cooling control are not limited to the object of the applied control cabinet, therefore, this application does not limit the specific application and type of the electrical control cabinet.

It can be seen from the above embodiments that the cooling system of the electrical control cabinet described in the present application can perform heating and dehumidification based on humidity monitoring by adding an evaporation device and a humidity sensor used in conjunction with it, thereby avoiding condensation in the control cabinet due to excessive humidity The problem of water; the effective monitoring of temperature and the improvement of cooling accuracy can be realized through the cooperation of temperature sensor and water cooling device. In addition, this application also increases the evaporation device to allow the cooling water to evaporate into the control cabinet to improve the heat dissipation effect of the cooling water. The cooling fan installed at the evaporation outlet allows the evaporated cooling water to enter the various parts of the control cabinet more quickly. place to improve cooling efficiency. At the same time, based on the cooling system of the electrical control cabinet in this application, the control device monitors and automatically adjusts the above-mentioned water-cooling process and heating and dehumidification process in real time, so as to realize automatic and efficient operation. Therefore, the electrical control cabinet cooling system described in the present application can effectively eliminate the condensed water formed in the electrical control cabinet and realize accurate and effective cooling in the control cabinet.

Optionally, the above-mentioned evaporating device 3 can also be connected with the control device 7, so that the evaporating device 3 can also be turned off when the humidity exceeds a preset threshold and the cooling function needs to be turned off, so as to avoid that the evaporating device 3 is still in the air after the water cooling device is turned off. run alone.

In some optional embodiments of the present application, a waterproof baffle 9 is further provided at the evaporation outlet of the evaporation device, and preferably the waterproof baffle is a waterproof louver. The waterproof baffle 9 is used to prevent the evaporated cooling water from being directly blown onto the electrical components by the cooling fan 8 . This is because the cooling water evaporated by the evaporating device has a relatively high humidity at the outlet. If the evaporated cooling water is directly blown to the electrical components of the control cabinet through the cooling fan 8, it is likely to cause corrosion and damage to the electrical components. , Therefore, it is necessary to set a structure similar to waterproof louvers at the exit position to block.

Further, a water accumulation tray 10 is provided below the waterproof baffle 9 and the evaporation device 3, and the water accumulation tray 10 is used to receive the accumulated water generated by the waterproof baffle 9 and the evaporation device 3 and The accumulated water can be discharged from the electrical control cabinet 1 in time. This not only prevents the accumulated water from slipping everywhere, but also helps to protect the cooling system of the electrical control cabinet from being affected and damaged by the accumulated water.

In some preferred embodiments of the present application, the heating device 4 is arranged between the evaporation device 5 and the cooling fan 8 . In this way, not only the humidity corresponding to the evaporating device 5 can be eliminated first during the heating process, but also the same cooling fan 8 can be used to diffuse the heat generated by heating to quickly reduce the humidity.

In some optional embodiments of the present application, the electrical control cabinet cooling system further includes at least one circulation fan 11, and the circulation fan 11 is used to form a circulating airflow 15 in the electrical control cabinet; the circulation fan 11 It is arranged at the turning position corresponding to the air circulation in the electrical control cabinet 1 . Specifically, the number and position of the circulating fans 11 can be set according to the layout position, volume and other heat dissipation requirements of electrical components in different control cabinets. For example, taking the electrical control cabinet 1 in FIG. 1 as a rectangular parallelepiped, circulating fans 11 can be installed at the four corners of the control cabinet so that the airflow formed by the continuous driving of the circulating fan 11 can cover the entire electrical control cabinet 1. , to ensure effective cooling of all electrical components.

Further, the circulating fan and the cooling fan in the embodiment of the present application are both axial flow fans. This is beneficial to effectively control the direction of the airflow through the axial flow fan and improve the accuracy of cooling.

It should be noted that in the embodiment shown in FIG. 1 of the present application, it is only shown that the cooling system of the electrical control cabinet is arranged in the corner corresponding to the lower left corner of the electrical control cabinet, and the cooling system of the electrical control cabinet can also be arranged in other A suitable location, for example, can be set on the upper end of the electrical control cabinet, so that the hot air generated by heating appears in the upper position, which is more conducive to reducing humidity. The position of the cooling system of the electrical control cabinet due to the interference of the structure of the electrical components in the electrical control cabinet can be designed and adjusted accordingly, which is not limited in this embodiment.

In some optional embodiments of the present application, as shown in FIG. 2 , the cooling fan 8 and the evaporation device 3 form a closed cylinder 12 with an inlet and an outlet, and one end of the closed cylinder 12 corresponds to the The evaporation outlet of the evaporation device, the other end of the closed cylinder 12 corresponds to the air inlet of the cooling fan and the air inlet is provided with a filter 13 . In this way, not only can the airflow formed by the cooling fan 8 be better restricted by the closed cylinder 12, but also ensure that the generated wind force completely acts on the evaporated cooling water, thereby improving the cooling efficiency. At the same time, by setting a filter screen at the entrance, dust and debris in the electrical control cabinet can be prevented from being sucked in, ensuring that the electrical control cabinet is clean and dust-free.

In some optional embodiments of the present application, there are multiple temperature sensors 5 and humidity sensors 6 that are evenly distributed in the electrical control cabinet. In this way, effective temperature and humidity can be obtained through the detection of multiple temperature sensors 5 and humidity sensors 6, so as to ensure accurate and effective heat preservation and moisturizing.

Preferably, the temperature sensor 5 and the humidity sensor 6 are arranged in the middle of the electrical control cabinet 1, so that relatively uniform and accurate temperature and humidity can be obtained, and at the same time, the rest of the cooling system of the electrical control cabinet and the air flow formed are not affected. cause disturbance.

In some optional embodiments of the present application, in order to prevent the exposed part of the water cooling device 2 from generating condensed water due to the large temperature difference between the inside and outside, the present application can also install rubber and plastic insulation cotton on the cooling water pipe corresponding to the water cooling device 2, Not only can the cooling water in the water pipe be kept warm, but also the problem of condensed water caused by the large temperature difference between the inside and outside of the water pipe can be avoided, and the safety of the electrical components in the electrical control cabinet can be improved.

Referring to Figure 3, it is a schematic diagram of the control principle of the cooling system of the electrical control cabinet. As can be seen from the figure, the electrical control cabinet cooling system may also include a PLC module 16 (Programmable Logic Controller, PLC, the Chinese name is programmable logic controller) and an HMI module 17 (Human Machine Interface, HMI for short, the Chinese name is Renren). Machine interface or human-machine interface), that is, the control device can be connected to the local or remote control terminal through the network, not only can realize remote display or monitoring, but also can realize automatic intelligent control of the cooling system of the electrical control cabinet through corresponding intelligent control. In addition, more auxiliary function modules can be added, for example, an alarm program can be set, and an alarm can be sent to the corresponding monitoring personnel when the trigger condition is met. In this way, the operator can be reminded that the temperature and humidity exceed the set threshold, and the main power supply cannot be supplied. That is to say, the cooling system of the electrical control cabinet has the functions of on-site display alarm and remote man-machine interface display alarm, which is convenient for the staff to check the internal conditions of the cabinet, find problems in time, and improve safety performance.

Referring to FIG. 4 , it is a schematic structural diagram of an electrical control cabinet cooling system provided by another embodiment of the present invention. 1 and 4, it can be seen that the electrical control cabinet cooling system proposed in this application can be built into the electrical control cabinet 1 to achieve a better cooling effect, and can also be arranged outside the electrical control cabinet 1 to have a better cooling effect. Easy installation and connection relationship. As shown in Figure 1, the cooling system of the electrical control cabinet is completely built into the electrical control cabinet, so that the evaporative cooling water can cool down the electrical components more effectively. Similarly, the heat generated by heating can also reduce the humidity faster. As shown in Figure 4, if the cooling system of the electrical control cabinet is arranged on the outside of the electrical control cabinet, an air inlet 18 and an air outlet 19 need to be provided, and then the cooling system of the electrical control cabinet is arranged at the air inlet 18, and An axial flow fan is set at the air outlet to enable the airflow in the electrical control cabinet to flow effectively.

Further, the working process of the electrical control cabinet cooling system described in the present application is as follows: first, collect the data of the temperature and humidity sensors, and transmit the data to the control device, and the microprocessor in the control device processes the data, and the measured The value is compared with the set threshold; if the temperature is greater than the set temperature threshold, the cooling water supply solenoid valve will be opened, and the cooling fan and circulation fan will be started at the same time for convection cooling. When the temperature reaches the set temperature threshold range, the solenoid valve and Fan; when the humidity sensor detects that the humidity in the cabinet exceeds the set humidity threshold, the control device controls the heater to dehumidify to ensure that the humidity is within a controllable range and avoid damage to electronic and electrical components such as circuit boards due to condensation. This application not only utilizes the existing cooling water for more effective cooling, but also avoids the appearance of condensed water through humidity control, which ensures the safety and effectiveness of the electrical components in the electrical control cabinet.

Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is exemplary only, and is not intended to imply that the scope of the present disclosure (including claims) is limited to these examples; under the idea of the present utility model, the above embodiments Or the technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in the details for the sake of brevity.

Additionally, to simplify illustration and discussion, and so as not to obscure the present invention, well-known power/ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided figures. connect. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention and this also takes into account the fact that details regarding the implementation of these block diagram devices are highly dependent on the platform on which the invention is to be implemented (ie, these details should be well within the purview of those skilled in the art). Where specific details (eg, circuits) have been set forth to describe example embodiments of the invention, it will be apparent to those skilled in the art that the invention may be made without or with variations from these specific details. Under the situation, implement the utility model. Accordingly, these descriptions should be regarded as illustrative rather than restrictive.

Although the utility model has been described in conjunction with specific embodiments of the utility model, many alternatives, modifications and variations of these embodiments will be apparent to those of ordinary skill in the art from the foregoing description. For example, other memory architectures such as dynamic RAM (DRAM) may use the discussed embodiments.

Embodiments of the present invention are intended to embrace all such alterations, modifications and variations that fall within the broad scope of the appended claims. Therefore, within the spirit and principle of the present utility model, any omission, modification, equivalent replacement, improvement, etc. should be included in the protection scope of the present utility model.

Claims (10)

1. An electrical control cabinet cooling system, characterized in that it includes: a water cooling device provided with cooling water, an evaporation device connected to the water cooling device and used to evaporate the cooling water, a heating device, a temperature sensor, a humidity sensor, A control device and a cooling fan arranged near the evaporation outlet of the evaporation device, the cooling fan is used to bring evaporated cooling water into the electrical control cabinet for cooling; The water cooling device, cooling fan, heating device, temperature sensor, and humidity sensor are all connected to the control device; the control device is used to control the water cooling device when the temperature detected by the temperature sensor is greater than a preset temperature threshold. The device and the cooling fan are turned on for cooling; when the humidity detected by the humidity sensor is greater than a preset humidity threshold, the water cooling device and the cooling fan are controlled to be turned off and the heating device is controlled to perform heating and dehumidification. 2. The electrical control cabinet cooling system according to claim 1, wherein the evaporation outlet of the evaporation device is also provided with a waterproof baffle, and the waterproof baffle is used to prevent the evaporated cooling water from being directly cooled by the The fan blows out. 3. The electrical control cabinet cooling system according to claim 2, wherein the waterproof baffle is a waterproof louver. 4. The electrical control cabinet cooling system according to claim 2, wherein a water accumulation tray is provided under the waterproof baffle and the evaporation device, and the water accumulation tray is used to receive the waterproof baffle plate and the evaporator produces ponding. 5. The electrical control cabinet cooling system according to claim 1, wherein the heating device is arranged between the evaporating device and the cooling fan. 6. The electrical control cabinet cooling system according to claim 1, further comprising at least one circulating fan, the circulating fan is used to form a circulating air flow in the electrical control cabinet, and the circulating fan is arranged at the The turning position corresponding to the air circulation in the electrical control cabinet. 7. The electrical control cabinet cooling system according to claim 6, characterized in that, both the circulation fan and the cooling fan are axial flow fans. 8. The electrical control cabinet cooling system according to claim 1, wherein the cooling fan and the evaporation device form a closed cylinder with an inlet and an outlet, and one end of the closed cylinder corresponds to the evaporation device The evaporation outlet, the other end of the closed cylinder corresponds to the air inlet of the cooling fan and the air inlet is provided with a filter. 9. The electrical control cabinet cooling system according to claim 1, characterized in that there are multiple temperature sensors and humidity sensors and they are evenly distributed in the electrical control cabinet. 10. The electrical control cabinet cooling system according to claim 1, characterized in that, the electrical control cabinet cooling system is built in the electrical control cabinet.