Cooling, dedusting and anti-static power distribution cabinet

Abstract

A cooling, dedusting and antistatic power distribution cabinet belongs to the technical field of power distribution cabinets and comprises a power distribution cabinet shell, an upper cabinet door and a lower cabinet door of the power distribution cabinet shell are provided with key holes for controlling opening and closing of the cabinet doors, the top of the power distribution cabinet is provided with exhaust fans, and the lower cabinet door is provided with a main switch circuit breaker socket. The circuit breaker handle is inserted into the main switch circuit breaker socket to control switching-on and switching-off of the main switch circuit breaker, the main switch circuit breaker is connected with the controller, the controller is connected with the thermoelectric power generation piece through a power transmission line, the controller is connected with the exhaust fan through a power transmission line, and the controller is connected with the ion wind dust removal device through a power transmission line. According to the invention, a thermoelectric power generation technology, a fan exhaust cooling technology and an ionic wind dust removal and anti-static technology are integrated, so that the power distribution cabinet has self-power-generation, cooling, dust removal and anti-static effects at the same time, and the safety coefficient of the power distribution cabinet is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of power distribution cabinets, and in particular relates to a cooling, dust-removing and anti-static power distribution cabinet. Background Art

[0002] At present, most domestic power distribution cabinets achieve the purpose of cooling through natural ventilation or fan forced exhaust. The heat energy of the high-temperature air in the power distribution cabinet is not effectively utilized. At the same time, there are no effective dust removal and anti-static measures. There are many hidden dangers in the operation of the power distribution cabinet, such as the patent for a dust-proof and cooling power distribution cabinet, publication number CN113629545A, and a high-efficiency cooling power distribution cabinet, publication number CN105281232A.

[0003] Existing dust removal and anti-static distribution cabinets require an external power supply for power supply, such as the patent "An electrostatic field detection automatic dust removal distribution cabinet" (publication number CN110783835A) and the patent "An intelligent distribution cabinet" (publication number CN12436398A), which are anti-static and dust removal by adding an ion air gun. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present invention proposes: a cooling, dust-removing and anti-static distribution cabinet, comprising a distribution cabinet shell, the upper cabinet door and the lower cabinet door of the distribution cabinet shell are both provided with keyholes for controlling the opening and closing of the cabinet doors, an exhaust fan is arranged on the top of the distribution cabinet, and a main switch circuit breaker socket is arranged on the lower cabinet door. The main switch circuit breaker is arranged in the distribution cabinet, and the circuit breaker handle is inserted into the main switch circuit breaker socket to control the closing and opening of the main switch circuit breaker. The main switch circuit breaker is connected to the controller, the controller is connected to the temperature difference power generation sheet through the transmission line, the controller is connected to the exhaust fan through the transmission line, and the controller is connected to the ion wind dust removal device through the transmission line.

[0005] Furthermore, the temperature difference power generation sheet, the controller, and the main switch circuit breaker are arranged on a beam in the power distribution cabinet.

[0006] Furthermore, an upper baffle is provided above the upper air outlet of the exhaust fan.

[0007] Furthermore, an ion wind dust removal device is provided at the bottom of the power distribution cabinet.

[0008] Furthermore, a dust collection drawer is provided below the ion wind dust removal device.

[0009] Furthermore, a handle is provided on the dust collection drawer.

[0010] Furthermore, an air inlet is arranged below the handle.

[0011] Furthermore, the ion wind dust removal device includes a bipolar corona discharge ion wind exciter and a dust removal device vent. The bipolar corona discharge ion wind exciter generates bipolar ion wind and forms an electric field under the action of a high-voltage power supply. The charged dust in the air discharged from the air inlet is deposited in the dust collection drawer under the action of the bipolar ion wind and the electric field. The dust removal device vent is arranged above the ion wind dust removal device.

[0012] The beneficial effects of the present invention are as follows: the present invention integrates the temperature difference power generation technology, the fan exhaust cooling technology and the ion wind dust removal / anti-static technology, so that the distribution cabinet has the effects of self-generation, cooling, dust removal and anti-static, thereby improving the safety factor of the distribution cabinet; the heat energy generated during the operation of the distribution cabinet is utilized to reduce the operating temperature of the distribution cabinet, prevent the accumulation of dust and static electricity in the distribution cabinet, and ensure the smooth and safe operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of the power distribution cabinet of the present invention;

[0014] Figure 2 The side door of the power distribution cabinet of the present invention is removed;

[0015] Figure 3 Schematic diagram of the device of the present invention.

[0016] 1. Distribution cabinet housing, 2. Keyhole, 3. Air inlet, 4. Handle, 5. Main switch circuit breaker socket, 6. Upper baffle, 7. Temperature difference power generation sheet, 8. Controller, 9. Main switch circuit breaker, 10. Circuit breaker handle, 11. Beam, 12. Ion wind dust removal device, 13. Transmission line, 14. Bipolar corona discharge ion wind exciter, 15. Electric field lines, 16. Charged dust, 17. Dust removal device vent, 18. Exhaust fan. DETAILED DESCRIPTION

[0017] In order to make the technical means adopted by the present invention and the purpose achieved easy to understand, the present invention is further explained in combination with a specific implementation method below. A cooling, dust-removing and anti-static distribution cabinet includes a distribution cabinet shell 1. The upper cabinet door and the lower cabinet door of the distribution cabinet shell 1 are both provided with a keyhole 2 for controlling the opening and closing of the cabinet door. An exhaust fan 18 is arranged on the top of the distribution cabinet, and a main switch circuit breaker socket 5 is arranged on the lower cabinet door. A main switch circuit breaker 9 is arranged in the distribution cabinet. The circuit breaker handle 10 is inserted into the main switch circuit breaker socket 5 to control the closing and opening of the main switch circuit breaker 9. The main switch circuit breaker 9 is connected to a controller 8, and the controller 8 is connected to a temperature difference power generation sheet 7 through a transmission line 13. The controller 8 is connected to the exhaust fan 18 through the transmission line 13, and the controller 8 is connected to an ion wind dust removal device 12 through the transmission line 13.

[0018] The temperature difference power generation sheet 7, the controller 8 and the main switch circuit breaker 9 are arranged on a crossbeam 11 in the power distribution cabinet.

[0019] Wherein, an upper baffle 6 is arranged above the upper air outlet of the exhaust fan 18 .

[0020] Wherein, an ion wind dust removal device 12 is arranged at the bottom of the power distribution cabinet.

[0021] Wherein, a dust collection drawer is arranged below the ion wind dust removal device 12 .

[0022] Wherein, a handle 4 is provided on the dust collection drawer.

[0023] Wherein, an air inlet 3 is arranged below the handle 4 .

[0024] Among them, the ion wind dust removal device 12 includes a bipolar corona discharge ion wind exciter 14 and a dust removal device vent 17. The bipolar corona discharge ion wind exciter 14 generates bipolar ion wind and forms an electric field under the action of a high-voltage power supply. The charged dust in the air discharged from the air inlet 3 is deposited in the dust collection drawer under the action of the bipolar ion wind and the electric field. The dust removal device vent 17 is arranged above the ion wind dust removal device 12.

[0025] like Figure 1 As shown, the housing 1 of the distribution cabinet is composed of a triangular bracket, a bottom plate, a vertical column, a side plate, etc., which supports the electrical components and isolates the electrical components from the external environment; the upper and lower doors of the distribution cabinet are provided with keyholes 2 to control the door switch; the air inlet 3 is a lower ventilation hole, and the circulating air enters from the lower ventilation hole; the handle 4 is fixed above the ventilation hole, which is convenient for pushing and pulling the drawer to clean the dust collected in the distribution cabinet; the main switch circuit breaker socket 5 controls the closing or opening of the circuit breaker by inserting the handle; below the upper baffle 6 of the distribution cabinet is the upper exhaust vent of the distribution cabinet, which plays a protective role to prevent rain or debris from entering the distribution cabinet through the exhaust vent.

[0026] like Figure 2 As shown, the temperature difference power generation sheet 7 generates electricity by utilizing the temperature difference between the inside of the distribution cabinet and the side plate of the distribution cabinet; the controller 8 regulates and controls the electric energy, distributes the electric energy and performs circuit protection. The power supply of the controller is divided into two routes, one is the power supply from the temperature difference power generation system, and the other is the power supply from the power distribution cabinet power supply line. When the power generation of the temperature difference power generation system is insufficient, the power supply line will be used for power supply; the main switch circuit breaker 9 controls the on and off of the power supply of the power distribution cabinet incoming power system; the circuit breaker handle 10 can be inserted into the main switch circuit breaker socket 5 without opening the cabinet door to open or close the switch, thereby ensuring the personal safety of the operator; the crossbeam 11 supports the distribution cabinet and fixes the electrical components; the ion wind dust removal device 12, the circulating air enters the device through the air inlet 3, and the dust is filtered and collected by the ion wind dust removal system in the device to reduce the dust in the distribution cabinet.

[0027] like Figure 3As shown, the transmission line 13 transmits electric energy for the cooling, dust removal and anti-static system; the bipolar corona discharge ion wind exciter 14 generates bipolar ion wind and forms an electric field under the action of the high-voltage power supply, which effectively removes the charged dust in the air and purifies the circulating air in the distribution cabinet; 15 is the electric field line, which is formed during the bipolar corona discharge process of the ion wind exciter; 16 is the charged dust; 17 is the vent of the dust removal device, and the charged dust 16 enters the ion wind dust removal device 12 through the air inlet 3, and is deposited in the dust collection box of the ion wind dust removal device 12 under the action of the bipolar ion wind and electric field generated by the bipolar corona discharge ion wind exciter 14, so as to facilitate centralized treatment; the exhaust fan 18 on the top of the distribution cabinet forces the air in the distribution cabinet to circulate for air cooling.

[0028] The present invention integrates temperature difference power generation technology, exhaust cooling, ion wind dust removal, and ion wind anti-static technology. The power is generated through the temperature difference between the inside of the distribution cabinet and the external environment. The electric energy enters the controller through the transmission line to adjust and control the electric energy, distribute the electric energy, and perform circuit protection. The controller distributes the electric energy to the exhaust fan and the ion generator. The operation of the exhaust fan drives the air inside and outside the distribution cabinet to circulate, and the high-temperature air in the distribution cabinet is discharged to reduce the internal temperature of the distribution cabinet. The air circulation is accelerated, and the dust in the environment easily enters the distribution cabinet with the air flow, resulting in dust accumulation in the distribution cabinet. A double-electrode corona discharge ion wind exciter is installed at the air inlet of the distribution cabinet to collect particulate matter in the air. The needle electrode can generate bipolar ion wind, which can not only promote the condensation of positive and negative polarity particles, but also accelerate the driving speed of particulate matter, and the dust removal efficiency can reach 94%. The positive and negative ions generated by the ion wind exciter flow upward from the lower part of the distribution cabinet with the air circulation, and neutralize the static electricity generated in the distribution cabinet, thereby achieving the purpose of preventing static electricity. The controller power supply is divided into two routes, one is the power supply from the temperature difference power generation system, and the other is the power supply from the power distribution cabinet power supply line. When the temperature difference power generation system generates insufficient power, the power supply line will provide power.

[0029] The system consists of five parts: temperature difference power generation system, circuit control system, exhaust cooling system, ion wind dust removal and anti-static system, and distribution cabinet body.

[0030] Principle of temperature difference power generation system:

[0031] There are a certain number of carriers such as electrons or holes inside the semiconductor. The density of these carriers will change with the change of temperature. If the temperature at one end of the object is high and the temperature at the other end is low, different carrier densities will appear in the middle of the same object. As long as the temperature difference between the two ends of the object can be maintained, the carriers can continue to diffuse, thus forming a stable voltage.

[0032] Ion wind dust removal principle:

[0033] 1. Use extremely non-uniform electric field to form corona discharge and generate plasma. The large number of electrons and positive and negative ions contained in the plasma collide inelastically with the particulate pollutants in the air under the action of the electric field gradient, and then adhere to them, making them charged ions. Under the action of the external electric field force, they are collected by the dust collecting electrode.

[0034] 2. Use the discharge method to generate negative ions, which are then diffused into the indoor space under the drive of ion wind, thereby effectively removing pollutants in the air.

[0035] Principle of ion wind static removal:

[0036] The positive and negative ions generated by the ion wind exciter flow upward from the bottom of the distribution cabinet with the air circulation, neutralizing the static electricity generated in the distribution cabinet, thereby achieving the purpose of preventing static electricity.

[0037] Take the power distribution cabinet in a joint station as an example:

[0038] The joint station has a total of 32 distribution cabinets, which rely on exhaust fans on the top of the distribution cabinets for ventilation and cooling. There are no dust removal or anti-static measures. Dust accumulation leads to poor heat dissipation of various accessories in the distribution cabinets, and long-term exposure to high temperatures greatly reduces the service life and safety performance. When components are covered with dust, they absorb moisture in the air and will corrode some components. Over time, this may lead to faults such as reduced insulation, short circuit, grounding, unstable voltage, and even the risk of electric shock.

[0039] In summary, the dust removal and failure frequency of the power distribution cabinets used in the station are very high. Dust removal is carried out once every three months on average. Each time, at least two electricians must strictly follow the "Standard Operation Procedure for Dust Removal of Power Distribution Cabinets", wear labor protection clothing, carry professional tools, and go through power outage procedures. Dust removal can only be carried out after power is cut off. Each dust removal takes about 12 working days and will cause a large number of equipment to stop operating. Each electrician's daily salary is about 500 yuan / day, and the economic loss caused by each dust removal power outage is 22,300 yuan. The accident loss caused by the aging of power distribution cabinet equipment is about 150,000 yuan each year.

[0040] According to the calculation, the new cooling, dust removal and anti-static distribution cabinet will cost 2,000 yuan more per unit, and the dust cleaning operation needs to be carried out once a year, which can save costs every year:

[0041] 500*2*12*4-1+2.23*10 4 *4-1+15*10 4 -2000*32=167900=167,900 yuan. At the same time, it can effectively reduce the occurrence of safety accidents and ensure the normal operation of power distribution facilities.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cooling, dust removal and anti-static distribution cabinet, characterized in that: The invention comprises a power distribution cabinet housing (1), wherein the upper cabinet door and the lower cabinet door of the power distribution cabinet housing (1) are both provided with keyholes (2) for controlling the cabinet door opening and closing, an exhaust fan (18) is provided on the top of the power distribution cabinet, a main switch circuit breaker socket (5) is provided on the lower cabinet door, a main switch circuit breaker (9) is provided in the power distribution cabinet, a circuit breaker handle (10) is inserted into the main switch circuit breaker socket (5) to control the closing and opening of the main switch circuit breaker (9), the main switch circuit breaker (9) is connected to a controller (8), the controller (8) is connected to a temperature difference power generation sheet (7) through a power transmission line (13), the controller (8) is connected to an exhaust fan (18) through a power transmission line (13), and the controller (8) is connected to an ion wind dust removal device (12) through a power transmission line (13).

2. The cooling, dust removal and antistatic distribution cabinet according to claim 1, characterized in that: The temperature difference power generation sheet (7), the controller (8), and the main switch circuit breaker (9) are arranged on a crossbeam (11) in the power distribution cabinet.

3. The cooling, dust removal and antistatic distribution cabinet according to claim 1, characterized in that: An upper baffle (6) is arranged above the upper air outlet of the exhaust fan (18).

4. The cooling, dust removal and anti-static distribution cabinet according to claim 1, characterized in that: An ion wind dust removal device (12) is arranged at the bottom of the power distribution cabinet.

5. The cooling, dust-removing and anti-static distribution cabinet according to claim 4, characterized in that: A dust collection drawer is provided below the ion wind dust removal device (12).

6. The cooling, dust-removing and anti-static distribution cabinet according to claim 5, characterized in that: A handle (4) is provided on the dust collection drawer.

7. The cooling, dust-removing and anti-static distribution cabinet according to claim 6, characterized in that: An air inlet (3) is arranged below the handle (4).

8. The cooling, dust removal and antistatic distribution cabinet according to claim 1, characterized in that: The ion wind dust removal device (12) comprises a bipolar corona discharge ion wind actuator (14) and a dust removal device vent (17). The bipolar corona discharge ion wind actuator (14) generates bipolar ion wind and forms an electric field under the action of a high voltage power supply. Charged dust in the air discharged from the air inlet (3) is deposited in a dust collection drawer under the action of the bipolar ion wind and the electric field. The dust removal device vent (17) is arranged above the ion wind dust removal device (12).

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