Relay protection device for thermal power plant

A technology of relay protection device and thermal power plant, which is applied to emergency protection circuit devices, circuit devices, components of emergency protection devices, etc. The effect of cooling and improving heat dissipation efficiency

Active Publication Date: 2021-07-23
HUANENG JINAN HUANGTAI POWER GENERATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing relay protection devices have poor heat

Method used

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  • Relay protection device for thermal power plant

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[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0037] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention.

[0038] like figure 1 As shown, the present invention provides a...

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PUM

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Abstract

The invention discloses a relay protection device for a thermal power plant. The device comprises a protection box, a plurality of relay protection device bodies, a first air pipe, a fan, two guide cylinders, two springs and two push rods, wherein the protection box is provided with two heat dissipation ports, and each heat dissipation port is provided with a sealing cover; the plurality of relay protection device bodies are arranged in the protection box; one end of the first air pipe is located outside the protection box, and the other end is located in the protection box; the fan is arranged on the first air pipe; the two guide cylinders are in one-to-one correspondence with the two sealing covers, one end of each guide cylinder communicates with the interior of the first air pipe, and the other end of each guide cylinder faces the corresponding sealing cover; one spring is arranged in each guide cylinder, and one end of each spring is fixedly connected with the first air pipe; one push rod is arranged in each guide cylinder, one end of each push rod is fixedly connected with the other end of the corresponding spring, and the other end of each push rod faces the corresponding sealing cover. According to the relay protection device, the heat dissipation performance of the relay protection device can be improved, the heat dissipation port is closed when heat dissipation through the heat dissipation port is not needed, and the dustproof and moistureproof effects can be achieved.

Description

technical field [0001] The invention relates to the technical field of relay protection devices. More specifically, the present invention relates to relay protection devices for thermal power plants. Background technique [0002] When the power components in the power system (such as generators, lines, etc.) or the power system itself fail to endanger the safe operation of the power system, the relay protection device can send a warning signal to the operator on duty in time, or directly send a warning signal to the controlled circuit breaker. Issue a trip order to terminate these event developments. [0003] When the relay protection device is working, there will be a lot of heat inside that cannot be dissipated, resulting in a rise in temperature, which will easily damage the internal electronic components of the relay and shorten the service life of the relay. Therefore, the relay protection device needs to have good heat dissipation performance, and also needs to meet ...

Claims

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Application Information

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IPC IPC(8): H05K7/20H02H1/00B01D46/12
CPCH05K7/20136H05K7/20218H02H1/00B01D46/12
Inventor 张洪英邹健孔焱冷述文孔祥超
Owner HUANENG JINAN HUANGTAI POWER GENERATION CO LTD
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