Mesh-type by-pass resistance pipe
A technology of resistance tubes and meshes, applied in the direction of pipe components, pipes/pipe joints/fittings, mechanical equipment, etc., can solve problems such as imbalance, gas and impurities that cannot be discharged smoothly, and affect the reliability of converter valves, etc., to achieve good performance Effects of resistance adjustment performance, good environmental adaptability, good gas and impurity carrying performance
Active Publication Date: 2014-02-26
STATE GRID CORP OF CHINA +2
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Problems solved by technology
The hydraulic adjustment capability is restricted by the inner diameter of the resistance tube. If the inner diameter of the resistance tube is too small, the flow rate is too low, and the gas and impurities cannot be discharged smoothly, which may easily cause partial discharge. At the same time, if the diameter is too small, it is easy to block and cause unbalanced hydraulic distribution, which in turn affects the operation of the converter valve. Reliability; the inner diameter of the resistance tube is too large to achieve the purpose of resistance adjustment, resulting in excessive flow loss and unbalanced system flow
The bypass empty pipe is suitable for bypass systems with large flow rates. Due to the large diameter and small flow resistance, the resistance matching is generally achieved by bending or looping, and its resistance adjustment ability is limited to a certain extent.
Method used
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[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] In this embodiment, the mesh-type bypass resistance pipe is taken as an example, such as Figure 1 to Figure 3 As shown, the mesh-type bypass resistance tube provided by the embodiment of the present invention includes: a tube 1 , a tube core 2 , a fixing rod 3 , and an eight-shaped steel ring 4 . The tube 1, the tube core 2 and the fixed column 3 are all made of stainless steel. The tube core 2 is vertically provided with an 8-shaped steel ring 4 arranged in a rotating superimposed array, and forms a mesh. The tube core 2 is welded on the tube 1 through the fixed column 3. The inner wall; the rotation angle of the 8-shaped steel ring 4 is set to 0°~360°, preferably 0°, 45°, 90°, 135°, 180°, 225°, 235°, 270°, 315° and 360°.
[0030] Among them, the flow area in the mesh-type bypass resistance tube is large and no...
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Abstract
The invention provides a mesh-type by-pass resistance pipe which comprises a pipe body, a pipe core and a fixing pillar. The pipe core is arranged in the pipe body through the fixing pillar, and improvement includes that hourglass-shaped steel rings are vertically arranged on the pipe core and overlapped and arrayed in a rotating manner. Compared with the prior art, the mesh-type by-pass resistance pipe has the advantages of being large in in-pipe circulation area, not easy to block, adjustable in resistance, high in environmental adaptability and convenient to mount and replace.
Description
technical field [0001] The invention relates to a resistance pipe, in particular to a mesh type bypass resistance pipe. Background technique [0002] As my country's high-voltage direct current transmission technology becomes increasingly mature, the construction of direct current transmission projects is in a golden period of development. In the high-voltage direct current transmission system, the cooling system is an important component of the heat dissipation system of the converter valve, and its operation directly affects the power transmission capacity of the entire direct current system. Therefore, it is particularly important to ensure the stable, reliable and efficient operation of the cooling system. [0003] The water distribution system of the converter valve is widely used in the cooling of the DC power transmission converter valve. The end of the pipeline of the water distribution system needs to use a bypass pipeline to take out the gas and impurities and adj...
Claims
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Login to View More IPC IPC(8): F16L55/027
CPCF16L55/02754
Inventor 查鲲鹏周建辉王航栾洪洲王治翔安靖
Owner STATE GRID CORP OF CHINA