CN-224216222-U - SF (sulfur hexafluoride) for high-voltage electrical equipment6Induced exhausting ventilator for leakage gas

Abstract

The utility model provides an induced exhausting and ventilating device for leakage gas of high-voltage electrical equipment SF 6 , which comprises a plurality of induced fans and a plurality of detection units for detecting SF 6 leakage gas, wherein the detection units are arranged below a high-voltage electrical equipment area at intervals, the induced fans are arranged between the detection units and the high-voltage electrical equipment area and are movably arranged on a ground guide rail of the induced fans, a plurality of air outlet nozzles capable of adjusting air outlet angles are arranged on the induced fans, and the air outlet of the air outlet nozzles of the induced fans cover the high-voltage electrical equipment area. The utility model responds timely to SF 6 leaked gas in the high-voltage electric equipment area, effectively improves the ventilation effectiveness of the high-voltage electric equipment area, reduces the concentration of the leaked SF 6 gas rapidly, greatly reduces the difficulty of SF 6 gas leakage treatment and the emergency treatment time, and greatly shortens the safe entry time of the high-voltage electric equipment area.

Inventors

• ZHAO WENGUI
• ZHA XIANSHUN
• GAO YUNPENG
• MAO SHUFAN
• XIE FANGXIANG
• Liao Xiangbo
• LUO QIANLIN
• ZHENG TAOPING
• HE BAOMIN
• YANG HONG
• CHEN PENGYUN
• JIANG HONGWEN

Assignees

• 三峡金沙江云川水电开发有限公司
• 长江勘测规划设计研究有限责任公司

Dates

Publication Date

20260508

Application Date

20250516

Claims (10)

1. 1. The induced exhausting and ventilating device for the leaked gas of the SF 6 of the high-voltage electrical equipment is characterized by comprising a plurality of induced fans (11) and a plurality of detection units (12) for detecting the leaked gas of the SF 6 , wherein the detection units (12) are arranged below the high-voltage electrical equipment area at intervals, the induced fans (11) are arranged between the detection units (12) and the high-voltage electrical equipment area, the induced fans (11) are movably arranged on an induced fan ground guide rail (9), a plurality of air outlet nozzles capable of adjusting the air outlet angle are arranged on the induced fans (11), and the air outlet of the air outlet nozzles of the induced fans (11) cover the high-voltage electrical equipment area.
2. 2. The induced exhaust ventilation device for high-voltage electrical equipment SF 6 according to claim 1, wherein the detection unit (12) is movably mounted on the detection unit floor rail (10).
3. 3. The induced exhausting and ventilating device for the leakage gas of the high-voltage electrical equipment SF 6 according to claim 2 is characterized in that the induced fan (11) comprises a box body (8), a plurality of air outlet nozzles capable of adjusting the air outlet angle are arranged at one end of the box body (8), a filter screen (6) and an air inlet (7) are arranged at the other end of the box body (8), an electric motor (5) and an air outlet blade (4) driven by the electric motor (5) are arranged in the box body (8), and the air outlet direction of the air outlet blade (4) faces the air outlet nozzles.
4. 4. A device for inducing, removing and ventilating leakage gas from a high-voltage electrical apparatus SF 6 according to claim 3, wherein said inducing fans (11) are arranged at an angle and at an even incline.
5. 5. The induced exhaust ventilator of the high-voltage electrical equipment SF 6 according to claim 4, wherein the air-out nozzle comprises a first nozzle (1), a second nozzle (2) and a third nozzle (3) which are arranged at intervals.
6. 6. The induced exhaust ventilation device for high-voltage electrical equipment SF 6 according to claim 5, wherein the angles between the first nozzle (1), the second nozzle (2) and the third nozzle (3) and the horizontal line are respectively: Wherein, theta 1 、θ 2 、θ 3 is the included angle between the first nozzle (1), the second nozzle (2) and the third nozzle (3) and the horizontal line, x 1 、x 2 、x 3 is the vertical distance from the first nozzle (1), the second nozzle (2) and the third nozzle (3) to the high-voltage electric equipment area, s 1 、s 2 、s 3 is the induction distance from the first nozzle (1), the second nozzle (2) and the third nozzle (3) to the high-voltage electric equipment area, and L is the length of the high-voltage electric equipment area.
7. 7. The induced exhaust ventilation device for SF 6 leakage gas of high-voltage electrical equipment according to claim 2, wherein the detection unit (12) moves along the detection unit ground rail (10) and performs timing automatic inspection for SF 6 leakage gas.
8. 8. The induced exhaust ventilation device for high-voltage electrical equipment SF 6 leakage gas according to claim 7, wherein the detection unit (12) comprises SF 6 gas monitoring sensor.
9. 9. The device for inducing, removing and ventilating the leakage of SF 6 of high-voltage electrical equipment according to claim 8, wherein the number of the induction fans (11) arranged at the SF 6 gas leakage is determined according to the SF 6 gas leakage intensity obtained by the detection unit (12).
10. 10. The induced exhaust ventilation device for high-voltage electrical equipment SF 6 leakage gas according to claim 2, further comprising a control unit for controlling the detection unit (12) to detect, acquiring detection data of the detection unit (12), controlling the movement of the induced fan (11) and starting and stopping of the induced fan (11) according to the detection data.

Description

Induced exhausting and ventilating device for leakage gas of SF 6 of high-voltage electrical equipment Technical Field The utility model belongs to the technical field of electromechanical engineering, and relates to a detection and collection device for leakage gas. Background With the continuous development of modern power systems, high-voltage power equipment such as Gas Insulated Switchgear (GIS) and gas insulated transmission lines (GIL) has been widely used in the fields of power, communication and the like. The equipment plays a vital role in important places such as transformer substations, power plants and the like due to the advantages of high efficiency, compactness, strong maintainability and the like. SF 6 (sulfur hexafluoride) is colorless and odorless, is a common gas applied to high-voltage electrical equipment such as GIS and GIL at present, and has strong insulativity and stability. In the long-term use process of high-voltage electrical equipment such as GIS, GIL and the like, SF 6 gas leakage phenomenon can occur due to external environment change, equipment aging and the like. According to the national standard, if SF 6 gas leaks into the working environment and the concentration reaches 1000 mu L/L, if the concentration is not effectively eliminated or reduced to be within the safety standard range, the personnel health is seriously affected, and in addition, the SF 6 gas leakage can also cause the reduction of the insulating property of high-voltage electrical equipment and affect the safe operation of an electrical power system. Therefore, in order to effectively prevent and cope with SF 6 gas leakage accidents, ensure the normal operation of equipment and environmental safety, the equipment must take continuous monitoring, high-efficiency ventilation, timely elimination and other guarantee measures. However, most of the existing detection devices and ventilation devices for SF 6 gas leakage cannot effectively identify and rapidly ventilate and remove the gas in time at the initial stage of gas leakage, response is not timely, ventilation effectiveness is insufficient, the concentration of the leaked SF 6 gas is slowly reduced, difficulty in treatment and emergency treatment time of the leaked SF 6 gas are increased, and safe entry time is long. Disclosure of utility model In order to solve the problems of untimely response of SF 6 gas leakage detection and insufficient ventilation effectiveness of the high-voltage electrical equipment in the background technology, the utility model provides a device for inducing and removing ventilation of SF 6 leakage gas of the high-voltage electrical equipment. The device comprises a plurality of induction fans and a plurality of detection units for detecting SF 6 leaked gas, wherein the detection units are arranged below a high-voltage electrical equipment area at intervals, the induction fans are arranged between the detection units and the high-voltage electrical equipment area and are movably arranged on a ground guide rail of the induction fans, a plurality of air outlet nozzles capable of adjusting air outlet angles are arranged on the induction fans, and the air outlet of the air outlet nozzles of the induction fans cover the high-voltage electrical equipment area. Further, the detection unit is movably mounted on the detection unit ground guide rail. Further, the induction fan comprises a box body, a plurality of air outlet nozzles capable of adjusting the air outlet angle are arranged at one end of the box body, a filter screen and an air inlet are arranged at the other end of the box body, a motor and air outlet blades driven by the motor are arranged in the box body, and the air outlet direction of the air outlet blades faces the air outlet nozzles. Further, the induction fans are uniformly arranged in a tilted manner according to a certain angle. Further, the air outlet nozzle comprises a first nozzle, a second nozzle and a third nozzle which are arranged at intervals. Still further, the angles between the first, second and third nozzles and the horizontal line are respectively: Wherein θ 1、θ2、θ3 is the included angle between the first nozzle, the second nozzle, the third nozzle and the horizontal line, x 1、x2、x3 is the vertical distance from the first nozzle, the second nozzle, the third nozzle to the high-voltage electrical equipment area, s 1、s2、s3 is the induced distance from the first nozzle, the second nozzle, the third nozzle to the high-voltage electrical equipment area, and L is the length of the high-voltage electrical equipment area. By adopting the multi-nozzle angle collaborative design, the air outlet can be ensured to cover the whole area of the high-voltage electrical equipment by calculating the injection angle. Further, the detection unit moves along the detection unit ground guide rail and automatically and regularly patrols and examines the SF 6 leaked gas. Still further, the detection unit includes an SF 6 gas mon