Cleaning device used for cooling water system in converter valve

A technology for cooling water system and cleaning device, which is applied in the directions of cleaning hollow objects, cleaning methods and utensils, chemical instruments and methods, etc., can solve problems such as corrosion and scaling, and achieve low cleaning cost, good cleaning effect and high economy. Effect

Active Publication Date: 2015-01-28
STATE GRID HUNAN ELECTRIC POWER +2
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to effectively eliminate the serious corrosion and fouling problem of the cooling water system in the converter valve of the ultra / ultra-high voltage converter station, its solution and the defects of the corresponding facilities. potential safety hazards, and the possible threats and harms to the EHV / UHV DC transmission system, a cleaning device for the cooling water system in the converter valve is provided. The cleaning condition can be conveniently controlled by using the device, and it is especially suitable for the The cooling water system in the converter valve of the ultra / ultra-high voltage converter station is cleaned regularly to improve the safe and stable operation quality of the converter station without any negative impact

Method used

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  • Cleaning device used for cooling water system in converter valve

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Embodiment Construction

[0019] see figure 1 , the embodiment of the cleaning device for the cooling water system in the diverter valve of the present invention is as follows figure 1 As shown, a cleaning box 1, a nitrogen cylinder 5, an agitator 13, a heater 14 and two water pumps 2 are included. Among them, the cleaning box 1 is made of commercially available 5mm thick stainless steel plate, with a length of 1500mm, a width of 800mm, and a height of 1000mm; the nitrogen cylinder 5 is a commercially available YBH9-40L steel nitrogen cylinder made of 37Mn; the stirrer 13 adopts a commercially available three-leaf swept-back agitator with a power of 1.2KW produced in Zibo, China. The agitator 13 is arranged on the top surface of the inner cavity of the cleaning box 1; the heater 14 is produced by a commercially available China Tianjin Walda Electromechanical Co., Ltd. A U-shaped tube insertion heater with a power of 10KW, the heater 14 is located at the bottom of the cleaning tank 1; and the two water...

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Abstract

The invention discloses a cleaning device used for a cooling water system in a converter valve. The device comprises a cleaning box (1), water pumps (2), a nitrogen cylinder (5), a stirrer (13) and a heater (14), wherein the number of the water pumps (2) is at least two, and the water pumps are respectively connected with a check valve (3). The two check valves (3) are connected with a recirculating valve (7), a first pressure meter (4), a relief valve (6), a first valve (8) and a second valve (9) in parallel. The other end of the recirculating valve (7) is inserted into the cleaning box (1); the other end of the first valve (8) is connected with a fourth valve (11) in series; the other end of the second valve (9) is connected with a third valve (10) in series. The device can clean the cooling water system in the super / extra high voltage converter valve regularly on the premise that safe operation is not affected, and has the advantages that gas-water-combined cleaning and pulse cleaning can be performed, cleaning conditions can be controlled conveniently, and the device is safe and easy to operate, good in effect and low in cost.

Description

technical field [0001] The invention belongs to the field of high-voltage electricity transmission, and in particular relates to a cleaning device for cooling water systems in converter valves suitable for super / ultra-high voltage converter stations. Background technique [0002] Ultra / UHV DC transmission has the characteristics of long transmission distance, large transmission capacity, flexible control and low energy consumption. According to the data provided by the State Grid Corporation of China, the primary circuit EHV / UHV DC power grid can deliver 6 million kilowatts of electricity, which is equivalent to five to six times the power transmitted by the existing 500 kV DC power grid. Moreover, the power transmission distance of the former is two to three times that of the latter, so the power transmission efficiency is greatly improved. According to the calculations of the State Grid Corporation of China, if the EHV / UHV line is used to transmit the above-mentioned powe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B08B9/032
Inventor 郭新茹冯兵何铁祥徐松刘凯
Owner STATE GRID HUNAN ELECTRIC POWER
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