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Air cooler for cooling DC converter valve and fabrication technology thereof

A technology of air coolers and DC converter valves, which is applied in the direction of electrical components, heat exchange equipment, and electric solid devices, and can solve the problem that the air cooler cannot be used in the cooling system of DC converter valves, so as to achieve reasonable process layout and reduce Effect of thermal resistance and surface cleanliness

Active Publication Date: 2009-07-29
岳阳高澜节能装备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art, air coolers are mainly used in petrochemical, air-conditioning, power transformers and other industries. These industries do not need to consider the influence of air coolers on the cooling medium. Most of them use carbon steel as the base pipe and pipe box of the air cooler. materials, even with stainless steel, there is no control over the welding process, final cleaning, etc., so existing air coolers cannot be used in DC converter valve cooling systems

Method used

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  • Air cooler for cooling DC converter valve and fabrication technology thereof
  • Air cooler for cooling DC converter valve and fabrication technology thereof
  • Air cooler for cooling DC converter valve and fabrication technology thereof

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Embodiment Construction

[0051] Referring to Fig. 1 and Fig. 2, an air cooler for cooling DC converter valves includes a pipe box 20 composed of a side plate 24, an upper sealing plate 25 and a lower sealing plate 26, and a partition 27 is arranged in the pipe box 20 to The inside of the pipe box 20 is divided into a plurality of relatively independent compartments, and a stainless steel tube bundle composed of several stainless steel finned tubes 21 is installed in the compartments. The base tube is made of 06Cr18Ni9 or 06Cr17Ni12Mo2 stainless steel, and the heat sink is formed by rolling an aluminum tube set on the base tube 21.

[0052] The manufacturing process of the air cooler for cooling the DC converter valve of the tube box of the present invention includes the manufacturing process of the stainless steel finned tube and the tube box.

[0053] With reference to Fig. 4, the manufacturing technological process of stainless steel finned tube of the present invention is as follows:

[0054] (1) ...

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Abstract

The invention discloses an air cooler used for cooling a high voltage direct current transmission converter valve and a manufacturing process thereof. The air cooler comprises a channel box; clapboards are arranged in the channel box to divide the inside of the channel box to a plurality of relatively independent interlayers; a stainless steel tube bank comprising a plurality of stainless steel finned tubes is arranged in the interlayers; the stainless steel finned tube comprises an O6Cr18Ni9 or O6Cr17Ni12Mo2 material parent tube and aluminum rolled fins covering the outside of the parent tube; precipitation amount of ion is decreased to the minimum to ensure the purity of cooling water; specific pre-process treatment of rolled fins effectively decreases thermal resistance between a stainless steel tube and an aluminum tube to improve radiating efficiency; working procedures are arranged reasonably and impurity or roll scale is removed in time, so that the surface of the liquid contacting material of the air cooler is clean to ensure the high purity of fluid.

Description

technical field [0001] The invention relates to a direct current transmission and distribution device, in particular to an air cooler for cooling a high-voltage direct current transmission converter valve and a manufacturing process thereof. Background technique [0002] The traditional power grid is networked in the form of AC, which has the advantages of simple implementation, low investment, and when one side of the grid loses power, the other side of the grid will provide emergency support in a natural accident, and the response speed is fast. However, because of the natural "bundling" between the two networks after networking, the AC synchronization range is extended. When one of the grids fails, it will affect multiple interconnected grids, which will expand the consequences of the failure, reduce the power quality, and easily cause contact. Large fluctuations in line power, or even shock to the weak link of the system, thereby increasing the probability of a major acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/30F28F21/08B21D53/06H01L23/467H01L23/36
CPCH01L2924/0002
Inventor 唐洪胡贤
Owner 岳阳高澜节能装备制造有限公司
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