Explosion-proof pressure relief device and gas charging switchgear for pressure vessel
A pressure vessel and pressure relief device technology, applied in high-voltage/large-current switches, electrical switches, high-voltage air circuit breakers, etc., can solve problems such as peripheral equipment and personnel injury, improve safety, and improve the ease of use of peripheral equipment and equipment. Injury to personnel, effect of size reduction
Active Publication Date: 2020-09-15
TIANJIN PINGGAO INTELLIGENT ELECTRIC +2
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Problems solved by technology
[0005] The purpose of the present invention is to provide a pressure vessel explosion-proof pressure relief device to solve the problem that the existing pressure vessel explosion-proof pressure relief device is easy to cause injury to peripheral equipment and personnel during pressure relief
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[0033] The present invention will be further described below in conjunction with the accompanying drawings.
[0034] An embodiment of an explosion-proof pressure relief device for a pressure vessel in the present invention is as follows: Figure 1 to Figure 7 As shown in the figure, it is an explosion-proof pressure relief device for a sulfur hexafluoride circuit breaker on a column. The corresponding circuit breaker casing 1 is provided with a pressure relief device installation port formed by the end of the cylinder. The device 4 is arranged in the installation port of the pressure relief device.
[0035] like figure 1 and figure 2 As shown, the explosion-proof pressure relief device 4 includes an explosion-proof membrane mounting seat 5 for fixedly connecting with the inner wall of the cylinder on the circuit breaker housing 1. The explosion-proof membrane mounting seat 5 is a rotary structure, and the edge has The folded edge is welded and fixed on the inner wall of th...
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The invention relates to an explosion-proof pressure relief device for a pressure vessel, and inflatable switch equipment. The explosion-proof pressure relief device for the pressure vessel comprisesan explosion-proof membrane mounting seat, which is provided with a pressure relief port communicated with the pressure vessel, wherein an explosion-proof membrane is provided at the pressure relief port, the explosion-proof membrane mounting seat is further provided with a protective cover covered on one side of the explosion-proof membrane facing away from the pressure vessel, and a ventilationinterval is provided between the protective cover and the explosion-proof membrane mounting seat for the passage of the pressure relief airflow. According to the above technical solution adopted by the invention, the released gas needs to be sprayed out through the ventilation interval provided between the protective cover and the explosion-proof membrane mounting seat, and the ventilation interval can change the direction of the airflow and slow down the airflow speed, which acts as a buffer. Compared with the prior art, the problem that the explosion-proof pressure relief device of the pressure vessel is easy to damage peripheral equipment and personnel when the pressure is released is improved.
Description
technical field [0001] The invention relates to an explosion-proof pressure relief device for a pressure vessel and an inflatable switch device. Background technique [0002] The sulfur hexafluoride switch on the column is a maintenance-free high-voltage outdoor column-mounted switchgear. It is mainly used in the distribution system of urban and rural power grids. It can divide and combine load current and fault current, and is used in distribution lines Transformation and distribution network automation construction. The switch uses sulfur hexafluoride gas as the insulating medium, and the box is evacuated and filled with sulfur hexafluoride gas of 0.22MPa. Sulfur hexafluoride gas is a colorless, odorless, non-toxic, non-flammable inert gas with high insulating properties and good arc extinguishing properties, and its dielectric strength far exceeds that of traditional insulating gases. Because of its excellent properties, sulfur hexafluoride gas is widely used in electri...
Claims
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IPC IPC(8): H01H33/56
Inventor 孟宪乐魏义利李建兵康凯李振东姚颖薛玉栋岳禹州任璐马雪飞廉继英
Owner TIANJIN PINGGAO INTELLIGENT ELECTRIC