Inner support device for manufacturing penstock

A support device and penstock technology, applied in the field of internal support devices, can solve problems such as the laborious rounding effect of the screw rod, affect the quality of the penstock, reduce the thickness, etc., achieve the effects of reducing auxiliary workload, convenient operation, and improving production efficiency

Inactive Publication Date: 2013-10-09
SINOHYDRO BUREAU 6 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are two types of traditional inner support. One is welding. The inner support used in this method does not have the function of rounding, but can only play a role of reinforcement after rounding. Requires the workload of cutting, grinding weld scars, and trimming of support pipes. In addition, if you do not pay attention to grinding, it will also damage the base metal and reduce the thickness. If it

Method used

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  • Inner support device for manufacturing penstock
  • Inner support device for manufacturing penstock
  • Inner support device for manufacturing penstock

Examples

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Embodiment Construction

[0010] The present invention will be specifically described below in conjunction with the accompanying drawings.

[0011] An internal support device for the manufacture of penstocks, such as figure 1 and figure 2 As shown, it is composed of two monolithic support frames with the same structure, and each monolithic support frame consists of hexagonal I-shaped steel bracket 1, steel pipe bracket 2, angle steel connecting rod 3, jack support 4, jack 5 and groove Composed of steel connecting rods 6, wherein: the hexagonal I-shaped steel bracket 1 is formed by the welding surface of I-shaped steel, welded together with one end of the steel pipe bracket 2, and the steel pipe brackets 2 are connected by angle steel connecting rods 3 through welding. As a whole, the other end of the steel pipe support 2 is welded together with the jack support 4, and the jack 5 is welded with the jack support 4. Through the above assembly, a single piece of support frame is formed. Each single secti...

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Abstract

The invention provides an inner support device for manufacturing a penstock. The inner support device for manufacturing the penstock is composed of two single support frames which have the totally same structure. According to each support frame, a hexagonal I-shaped steel support and penstock supports are welded together, the penstock supports are welded into a whole through angle steel connecting rods, the end of each penstock support is welded to a jack support, each jack is welded to one jack support, and the two support frames are welded into a whole through U-steel connecting rods. When being used, the inner support device for manufacturing the steel penstock is hung in the penstock, the roundness of the penstock can be accurately controlled through adjustment of the abutting deviation between the lower-layer jacks and the penstock wall, and therefore beneficial conditions are provided for follow-up operation such as welding and stiffening ring assembly alignment. The inner support device for manufacturing the steel penstock is easy to install, convenient to use, easy to disassemble, capable of enabling the roundness of the penstock and the surface quality of the penstock wall to be effectively controlled, lightening the auxiliary workload of penstock manufacturing, improving the production efficiency and saving cost, and reusable.

Description

technical field [0001] The present invention relates to an inner support device used in the manufacture of pressure steel pipes, in particular to an inner support device which is convenient for adjusting the roundness and disassembly of the pressure steel pipes and ensures the roundness of the pressure steel pipes and the surface quality of the pipe wall. Background technique [0002] Penstocks are used more and more in hydropower stations, especially the water delivery system of pumped storage power stations, which are often lined with penstocks in large quantities due to the influence of geological conditions. With the continuous development of science and technology, 600Mpa and 800Mpa high-strength steel plates are also widely used in the manufacture of penstocks, which also puts forward higher requirements for the manufacturing technology of penstocks. There are two types of traditional inner support. One is welding. The inner support used in this method does not have th...

Claims

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Application Information

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IPC IPC(8): B21D3/14
Inventor 杨春国陈博王帅
Owner SINOHYDRO BUREAU 6 CO LTD
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