Water leakage detection device used for high voltage converter and combined device and method thereof

A detection device and inverter technology, which is applied in the direction of liquid tightness measurement using liquid/vacuum, can solve the problems of large reserved space, reduced sensitivity of the tipping bucket mechanism, and affecting the detection of water leakage faults in the cooling system. Reduced tensile strength, easy installation and maintenance

Inactive Publication Date: 2017-08-11
NR ELECTRIC CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this method is that the tipping bucket itself has a certain height. In order to introduce the leaked cooling water into the tipping bucket, a large-area drainage plate must be installed above the tipping bucket. Pour it out, so that there will be a lot of space under the converter for the water leakage detection system; in add

Method used

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  • Water leakage detection device used for high voltage converter and combined device and method thereof
  • Water leakage detection device used for high voltage converter and combined device and method thereof
  • Water leakage detection device used for high voltage converter and combined device and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] see figure 1 , figure 2, the water leakage detection device for high-voltage converters includes a housing, a water sensitive part 2, a shading slider 3, an elastic part 4, an optical signal transmitting end 5 and an optical signal receiving end 12; the housing 1 includes a bottom surface and a side wall and a waterproof top cover 11; the upper edge of the side wall is provided with a vent 9, and the lower edge is divided into a water outlet 7; the area of ​​the waterproof top cover 11 is greater than the cross-sectional area of ​​the housing 1 and can prevent falling from above Water drips into the housing 1 from the vent hole 9; the water sensitive part 2, the shielding slider 3 and the elastic part 4 are located in the housing 1; one end of the water sensitive part 2 is connected to the left side of the housing 1 wall connection, the other end is connected with the shading slider 3, the shading slider 3 is also connected with the left end of the elastic member 4, a...

Embodiment 2

[0036] see image 3 , the water leakage detection combination device for high-voltage converters, comprising at least two water leakage detection devices for high-voltage converters according to any one of claims 1-7; the water leakage detection devices for high-voltage converters are stacked sequentially from top to bottom Together; the bottom surface of the water leakage detection device for the previous high-voltage converter is placed on the waterproof top cover of the next adjacent high-voltage converter water leakage detection device. The bottom surface of the water leakage detection device for the last high-voltage converter is fixedly connected with the waterproof top cover of the next adjacent high-voltage converter water leakage detection device through bolts. The combined water leakage detection device for the high-voltage converter is the same as that in Embodiment 1, and will not be described in detail again.

[0037] image 3 The three-layer device shown is sta...

Embodiment 3

[0042] The water leakage detection method of the high-voltage converter is implemented by using the water leakage detection device for the high-voltage converter described in Embodiment 1. For the specific scheme, refer to Embodiment 1 and will not be described in detail.

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Abstract

The invention discloses a water leakage detection device used for a high voltage converter and a combined device thereof. One end of a water-sensitive member is connected with the sidewall of the left side of a shell, and the other end is connected with a light shading slide block. The light shading slide block is also connected with the left end of an elastic member. The right end of the elastic member is connected with the sidewall of the right side of the shell. A light signal transmitting end is installed on the front sidewall of the shell or installed on the rear sidewall of the shell. A light signal receiving end is installed on the opposite sidewall of a light signal transmitter. Light shading and sensitive material is immersed in the water and then the tensile strength is reduced and the material can be pulled apart by the elastic member so that the light shading slide block is enabled to move to the right side of the shell under the pulling effect of the elastic member. When the pulling force of the elastic member and the resistance of the light shading slide block are balanced, the light shading slide block stops moving and can shade light signal transmission between the light signal transmitting end and the light signal receiving end. The invention also discloses the water leakage detection combined device used for the high voltage converter and a method thereof. The water leakage detection device is convenient to install and maintain so that the water leakage situation of the high voltage converter can be accurately detected.

Description

technical field [0001] The invention belongs to the application field of power electronics and power systems, and in particular relates to a water leakage detection device, a combination device and a method for a high-voltage converter. Background technique [0002] High-voltage converters are used to convert AC voltage to DC voltage, or inversely convert DC voltage to AC voltage. A high voltage converter contains a large number of power electronic devices, such as thyristors, IGBTs, etc. These power electronic devices will lose power and emit a lot of heat when they work. In addition, the high-voltage converter may also contain some other heat loss equipment, such as reactors, which also emit a large amount of heat energy during operation. In order to ensure the normal operation of the high-voltage converter, a water cooling system is generally used in the high-voltage converter to cool the heating equipment. In the high-pressure converter, the water cooling system that ...

Claims

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Application Information

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IPC IPC(8): G01M3/02
Inventor 张子敬丁峰峰黄华刘磊张翔方太勋
Owner NR ELECTRIC CO LTD
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