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Combined heat exchange system of converter valve and valve hall for direct current transmission

A technology of combined heat exchange and direct current transmission, which is applied in the direction of output power conversion device, household heating, household heating, etc., and can solve the problem of high system cost

Inactive Publication Date: 2018-09-07
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a combined heat exchange system of a converter valve and a valve hall for direct current transmission to solve the problem of high cost of the existing system

Method used

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  • Combined heat exchange system of converter valve and valve hall for direct current transmission
  • Combined heat exchange system of converter valve and valve hall for direct current transmission
  • Combined heat exchange system of converter valve and valve hall for direct current transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as image 3 As shown, the dotted box I is the converter valve circuit, and the dotted box II is the valve hall circuit.

[0025] The valve hall circuit is consistent with the conventional composition, including the valve hall air cooler 10, the valve hall circuit circulation pump 9, and the valve hall air conditioner 3 arranged in series; the diverter valve circuit includes the diverter valve circuit circulation pump 2 and the diverter valve circuit heat exchanger 1.

[0026] The basic idea of ​​the invention is to combine the converter valve circuit with the valve hall circuit by means of the valve hall air conditioner. Except for a part of the medium flowing out of the heat exchanger 1 of the diverter valve circuit, a part directly enters the diverter valve, and the other part enters the air-conditioning condenser 6 of the valve hall and then returns to the inlet of the circulation pump of the diverter valve circuit. Based on the above settings, the condenser o...

Embodiment 2

[0043] Such as Figure 4 , and the difference from Embodiment 1 is that the converter valve circuit heat exchanger 1 adopts a frequency conversion fan plus a spraying device, and the spraying device includes a spraying pump 11 and a shower pool 12 .

Embodiment 3

[0045] Such as Figure 5 , The difference from Embodiment 1 is that the heat exchanger 1 of the diverter valve loop adopts an air cooler.

[0046] To sum up, through the above process, this equipment achieves the following goals: ①. Solve the problem of poor reliability of the valve hall air conditioner when the diverter valve system and the valve hall air conditioning system are independently installed: the use of the combined cooling system effectively avoids the The problem of 2 sets of independent air conditioners in the equipment reduces the cost of the equipment; at the same time, the organic combination of the converter valve system and the air conditioning system effectively avoids condensation caused by improper cooperation between the valve cooling system and the air conditioning system, which leads to the converter valve and direct current The outage of power transmission projects; ② Creatively combine the converter valve system and the valve hall air conditioner to...

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Abstract

The invention relates to a converter valve and valve hall joint heat exchange system for direct-current transmission. The system comprises a converter valve loop (I) used for converter valve heat exchange and a valve hall loop (II) used for valve hall heat exchange, media flowing out of a converter valve loop heat exchanger (1) are divided into at least two ways, the first way flows through a converter valve to return to a converter valve loop circulating pump (2), and the second way returns to the converter valve loop circulating pump (2) after passing through a valve hall air conditioning condenser (6). Through a valve hall air conditioning, the converter valve loop and the valve hall loop are jointed, the valve hall air conditioning uses the media already cooled or heated by the converter valve loop and needs to be provided with condensation energy like an original valve hall air conditioning, the condenser can adopt a shell-tube radiator, and energy consumption and cost of the valve hall air conditioning are reduced.

Description

technical field [0001] The invention relates to a combined heat exchange system of a converter valve and a valve hall for DC transmission. Background technique [0002] The core unit of AC and DC conversion used in DC transmission projects is the converter valve, which is usually arranged in a closed valve hall space. When the converter valve is running, the power consumption and heat generation of each component are mainly taken away by the valve cooling water system, and the converter valve components can only work under the normal operating environment temperature and relative humidity within a certain range. In addition, when the valve hall is out of service for maintenance, it is also necessary to ensure a suitable working environment and cleanliness requirements in the valve hall. For this reason, the valve hall needs to set up the necessary air conditioning and ventilation system, and maintain the positive pressure in the valve hall. The process flow of the conventi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/00H05K7/20F24F13/30
CPCF24F13/30H02M1/00H05K7/2089
Inventor 王大伟白杰王强
Owner STATE GRID CORP OF CHINA