CN209929777U - Automatic temperature control type substation DC panel cabinet dustproof and cooling device - Google Patents

Abstract

The utility model relates to a direct current screen cabinet control by temperature change technical field of transformer substation, an automatic accuse temperature formula direct current screen cabinet heat sink that prevents dust of transformer substation, it includes the direct current screen cabinet, be provided with at least a set of radiating component that is used for the heat dissipation on direct current screen cabinet back door from left to right, interior group radiating component all includes first fan group, second fan group and third fan group, inside the being provided with temperature control unit at the direct current screen cabinet, temperature control unit includes host system and temperature acquisition module, temperature acquisition module is connected with host system, host system respectively with first fan group, the drive arrangement of all fans in second fan group and the third fan group is connected. The utility model discloses an automatic accuse temperature of direct current screen cabinet is equipped with at least a set of radiating subassembly that is used for additional, and every radiating subassembly all includes first fan group, second fan group and third fan group, has increased the fan number, has formed the circulation ventilation air current, has improved the circulation of air speed in the direct current screen cabinet, has increased the cooling effect.

Description

Automatic temperature control type substation DC panel cabinet dustproof and cooling device

technical field

The utility model relates to the technical field of temperature control of direct current screen cabinets of substations, which is an automatic temperature control type dustproof and cooling device of direct current screen cabinets of substations.

Background technique

Substation DC system related equipment (such as DC charging module, monitoring host and other equipment) will generate a lot of heat during operation. At present, the existing cooling methods for heating equipment generally include installing cooling fans inside the heating equipment chassis, adding cooling holes on the panel cabinet door, or directly opening the rear door of the panel cabinet to dissipate heat. During operation, since the cooling fan and the chassis are integrated in the panel cabinet, the heat inside the panel cabinet cannot be directly transferred, resulting in a high temperature inside the panel cabinet, which seriously affects the cooling effect of the device itself. The cooling fan holes set on the back door of the panel cabinet will cause dust in the air to accumulate inside the equipment and on the fan, causing serious dust accumulation in the equipment inside the panel cabinet and slow fan jams, which aggravates the speed of equipment damage. If heat dissipation holes are installed on the panel cabinet, the air circulation will be slow, and the heat dissipation effect will be poor, and at the same time, a channel will be left for electrostatic adsorption of dust in the air. If the panel cabinet door is directly opened to dissipate heat from the equipment, the equipment in the DC panel cabinet will be exposed, which is not conducive to operation and maintenance and personnel safety.

SUMMARY OF THE INVENTION

The utility model provides an automatic temperature control type substation DC screen cabinet dustproof and cooling device, which overcomes the above-mentioned deficiencies of the prior art, and can effectively solve the problems of slow air circulation and poor heat dissipation effect of the heat dissipation device of the existing DC screen cabinet. The problem.

The technical scheme of the utility model is realized by the following measures: an automatic temperature control type substation DC screen cabinet dustproof and cooling device, including a DC screen cabinet, at least one DC screen cabinet is provided on the rear door from left to right. A set of heat dissipation components for heat dissipation, each set of heat dissipation components includes a first fan group arranged at the lower part of the rear door of the DC panel cabinet and capable of inhaling external cold air; The second fan group and the third fan group are arranged on the upper part of the back door of the DC panel cabinet and can discharge the hot air in the DC panel cabinet. A temperature control unit is arranged inside the DC panel cabinet. The temperature control unit includes the main control module and the collection inside the DC panel cabinet. A temperature acquisition module for temperature, the temperature acquisition module is connected with the main control module, and the main control module is respectively connected with the drive devices of all fans in the first fan group, the second fan group and the third fan group.

The following are further optimizations or/and improvements to the above-mentioned technical solutions of the utility model:

Dust-proof components are detachably installed on the rear doors of the DC panel cabinets corresponding to the outer positions of the first fan group and the third fan group, respectively.

The above-mentioned first fan group may include at least two positive pressure fans, and the driving device of each positive pressure fan is connected to the main control module, the second fan group includes two axial flow fans, and the driving device of each axial flow fan is Both are connected with the main control module, the third fan group includes at least two negative pressure fans, and the driving device of each negative pressure fan is connected with the main control module.

The above-mentioned passive nodes may also be arranged inside the DC panel cabinet, and the main control module is connected to the passive nodes.

The above temperature control unit may further include a display screen, the display screen is located outside the rear door of the DC screen cabinet, and the display screen is connected to the main control module.

The utility model is simple in structure and convenient to use, and realizes the automatic temperature control of the DC panel cabinet. The utility model is additionally provided with at least one set of radiating components for heat dissipation, and each radiating component includes a first fan group and a second fan group and the third fan group, thereby increasing the number of fans, forming a stable circulating ventilation airflow, improving the air circulation speed in the DC panel cabinet, and increasing the cooling effect. , real-time adjustment of the number of fans required to work, energy saving and environmental protection, and reduce costs.

Description of drawings

Figure 1 is a schematic view of the structure of the front view of the preferred embodiment of the present invention.

Figure 2 is a block diagram of the circuit structure of the preferred embodiment of the present invention.

The codes in the accompanying drawings are respectively: 1 is the back door of the DC panel cabinet, 2 is the cooling assembly, 3 is the first fan group, 4 is the second fan group, 5 is the third fan group, 6 is the dust-proof component, and 7 is the positive Pressure fan, 8 is an axial flow fan, and 9 is a negative pressure fan.

Detailed ways

The present invention is not limited by the following examples, and specific implementations can be determined according to the technical solutions and actual conditions of the present invention.

In the present utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout of Figure 1 of the specification, such as: the positions of front, rear, upper, lower, left, right, etc. The relationship is determined according to the layout direction of FIG. 1 of the specification.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described:

As shown in Figures 1 and 2, the automatic temperature control type substation DC screen cabinet dustproof and cooling device is characterized in that it includes a DC screen cabinet, and at least one set of For the heat dissipation components 2 for heat dissipation, each group of heat dissipation components 2 includes a first fan group 3 arranged at the lower part of the rear door 1 of the DC panel cabinet and capable of inhaling external cold air; The second fan group 4 for air circulation and the third fan group 5 arranged on the upper part of the back door 1 of the DC panel cabinet and capable of discharging the hot air in the DC panel cabinet are provided with a temperature control unit inside the DC panel cabinet, and the temperature control unit includes a main control module and the temperature acquisition module that collects the temperature inside the DC panel cabinet, the temperature acquisition module is connected to the main control module, and the main control module is respectively connected to the drive devices of all fans in the first fan group 3, the second fan group 4 and the third fan group 5 .

The above-mentioned heat dissipation assembly 2 includes a first fan group 3 for inhaling air, a second fan group 4 for circulating air in the DC panel cabinet, and a third fan group 5 for discharging hot air in the DC panel cabinet, wherein the second fan Group 4 is horizontally arranged in the middle of the rear door 1 of the DC panel cabinet. The fans in all fan groups are equipped with a drive device that controls their rotation, and the drive device can be a motor. When working, the first fan group 3, the second fan group 4 and the third fan group 5 together form a cooling air duct. The first fan group 3 sucks in the external cold air, and the second fan group 4 sucks the cold air from the lower part of the DC panel cabinet. To the upper part of the DC panel cabinet, the third fan group 5 discharges the hot air in the DC panel cabinet, so as to form a circulating ventilation airflow in the DC panel cabinet by sucking in the external cold air and exhausting the internal hot air, reducing the inside of the DC panel cabinet. temperature.

The above-mentioned temperature control unit is in the prior art, and can be a temperature controller with temperature acquisition and control functions.

The above temperature control unit includes a main control module and a temperature acquisition module for collecting the temperature inside the DC panel cabinet. The main control module can be a 51 single-chip microcomputer, and the temperature acquisition module can be a temperature sensor.

When using, set the fan start threshold and the corresponding relationship between the temperature and the number of fans required to start in the main control module in advance. The temperature acquisition module collects the real-time temperature in the DC panel cabinet and sends it to the main control module; the main control module will The received temperature is processed by analog-to-digital conversion, amplification, etc., and the processed temperature value is compared with the fan startup threshold. If the temperature exceeds the fan startup threshold, it is determined that the first fan group 3, the second fan group 4 and the third fan group 5 are in the The main control module starts the corresponding fan for the number to be started; then the temperature acquisition module continuously collects the real-time temperature in the DC panel cabinet, and the main control module makes corresponding judgments and controls until the main control module determines that the real-time temperature in the DC panel cabinet is low If the fan start threshold is exceeded, all working fans will be stopped.

Therefore, the utility model is simple in structure and convenient to use, and realizes the automatic temperature control of the DC panel cabinet. The utility model is additionally equipped with at least one set of heat dissipation assemblies 2 for heat dissipation, and each heat dissipation assembly 2 includes a first fan group 3, The second fan group 4 and the third fan group 5 increase the number of fans, form a stable circulating ventilation airflow, improve the air circulation speed in the DC panel cabinet, and increase the cooling effect. Real-time temperature in the screen cabinet, real-time adjustment of the number of fans required to work, energy saving, environmental protection, and cost reduction.

According to actual needs, the above-mentioned automatic temperature control type substation DC screen cabinet dustproof and cooling device can be further optimized or/and improved:

As shown in FIG. 1 , dustproof components 6 are respectively detachably installed on the rear doors of the DC panel cabinet corresponding to the outer positions of the first fan group 3 and the third fan group 5 .

The above-mentioned dust-proof component 6 can be a PVC or sponge-type fan dust cover, and the fan dust cover can be respectively installed on the outside of the first fan group 3 and the third fan group 5 by plugging and unplugging, so that the fan dust covers are respectively Covers all the fans of the first fan group 3 and the third fan group 5, thereby effectively reducing the dust in the air entering the fan and the DC panel cabinet.

The above-mentioned dust-proof parts 6 are detachably installed, which is convenient for staff to clean and replace, and reduces the workload of operation and maintenance.

As shown in Figures 1 and 2, the first fan group 3 includes at least two positive pressure fans 7, and the drive device of each positive pressure fan 7 is connected to the main control module, and the second fan group 4 includes two Axial flow fans 8, the driving device of each axial flow fan 8 is connected to the main control module, the third fan group 5 includes at least two negative pressure fans 9, and the driving device of each negative pressure fan 9 is connected to the main control module. control module connection.

As shown in Figures 1 and 2, passive nodes are also arranged inside the DC panel cabinet, and the main control module is connected to the passive nodes.

The above-mentioned passive node is a known technology in the prior art, and a passive node refers to a passive switch, which has two states of on and off. Here, one end of the passive node is connected to the main control module, and the other end is connected to the substation monitoring and control device.

When in use, the alarm temperature threshold of the DC panel cabinet is set in the main control module. If the main control module determines that the real-time temperature in the DC panel cabinet is greater than or equal to the alarm temperature threshold, the main control module controls the passive node to close, and sends the monitoring and control device to the substation. Send an alarm signal to remind the operation, maintenance and monitoring personnel that the temperature in the DC panel cabinet is too high, and appropriate human measures are required to dissipate heat or notify the maintenance personnel for maintenance.

As shown in Figures 1 and 2, the temperature control unit further includes a display screen, the display screen is located outside the rear door 1 of the DC panel cabinet, and the display screen is connected to the main control module.

The above-mentioned display screen can be an LED screen, which is used to display the real-time temperature in the DC screen cabinet, which is convenient for the staff to check.

The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and can increase or decrease unnecessary technical features according to actual needs to meet the needs of different situations.

Claims (8)

1. An automatic temperature control type substation DC screen cabinet dustproof and cooling device is characterized in that comprising a DC screen cabinet, on the back door of the DC screen cabinet, from left to right, at least one group of heat dissipation components for heat dissipation is provided, each The cooling components of each group include a first fan group arranged at the lower part of the rear door of the DC panel cabinet and capable of sucking in external cold air, a second fan group arranged in the middle of the rear door of the DC panel cabinet and able to circulate the air in the DC panel cabinet, and a second fan group arranged in the DC panel cabinet. The third fan group on the upper part of the back door of the cabinet, which can discharge the hot air in the DC panel cabinet, is provided with a temperature control unit inside the DC panel cabinet. The temperature control unit includes a main control module and a temperature acquisition module that collects the temperature inside the DC panel cabinet. It is connected with the main control module, and the main control module is respectively connected with the drive devices of all fans in the first fan group, the second fan group and the third fan group. 2. The automatic temperature control type substation DC screen cabinet dust-proof and cooling device according to claim 1 is characterized in that the rear doors of the DC screen cabinet corresponding to the outer positions of the first fan group and the third fan group are respectively detachably installed with Dust-proof parts. 3. The automatic temperature control type substation DC panel cabinet dustproof and cooling device according to claim 1 or 2, characterized in that the first fan group comprises at least two positive pressure fans, and the drive of each positive pressure fan is The devices are all connected to the main control module, the second fan group includes two axial flow fans, the drive device of each axial flow fan is connected to the main control module, and the third fan group includes at least two negative pressure fans, each negative. The drive devices of the pressure fans are all connected with the main control module. 4. The automatic temperature control type substation DC screen cabinet dustproof and cooling device according to claim 1 or 2, characterized in that a passive node is also arranged inside the DC screen cabinet, and the main control module is connected to the passive node. 5 . The automatic temperature control type substation DC screen cabinet dustproof and cooling device according to claim 3 , characterized in that a passive node is also arranged inside the DC screen cabinet, and the main control module is connected to the passive node. 6 . 6. The automatic temperature control type substation DC screen cabinet dustproof and cooling device according to claim 1, 2 or 5, characterized in that the temperature control unit further comprises a display screen, and the display screen is located outside the back door of the DC screen cabinet, and displays The screen is connected to the main control module. 7. The automatic temperature control type substation DC screen cabinet dustproof and cooling device according to claim 3, characterized in that the temperature control unit further comprises a display screen, the display screen is located outside the back door of the DC screen cabinet, and the display screen is connected to the main control panel. Module connection. 8. The automatic temperature control type substation DC screen cabinet dustproof and cooling device according to claim 4, characterized in that the temperature control unit further comprises a display screen, the display screen is located outside the back door of the DC screen cabinet, and the display screen is connected to the main control panel. Module connection.

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