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Thin shell nested pressure test cabin device

A pressure test, nested technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of difficult construction and high cost of large-scale test chambers, achieve convenient disassembly and assembly, reduce construction and installation costs, and wide application. Foreground effect

Inactive Publication Date: 2015-07-01
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of the bulkhead plate of the existing high-pressure test chamber is more than 200mm. With the increase of the effective diameter of the pressure chamber, the thickness of the bulkhead increases nearly linearly. It is generally formed by forging. The construction of a large test chamber is extremely difficult and expensive.

Method used

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  • Thin shell nested pressure test cabin device
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  • Thin shell nested pressure test cabin device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as Figure 1-4 As shown, the thin-shell nested pressure test chamber device includes the upper end surface 1 of the pressure chamber, the sealing cover 10 and the active and passive pressure balance adjustment system 16. The number of active and passive pressure balance adjustment systems 16 is not less than the number of pressure shell layers The pressure-adjustable energy storage voltage stabilizer 15 is connected with the inner cavity of each layer of pressure-resistant shells, and the outer shell 4, the middle shell 5 and the inner shell 6 are welded below the upper end surface 1 of the pressure chamber, wherein the middle shell 5 is a layer, the outer casing 4, the middle casing 5 and the inner casing 6 are filled with a liquid filling medium 7 with a certain prestress, and the bottom is welded with a support 8.

[0024] The sealing cover 10 forms a self-tightening seal through the arc-shaped shear keys 2, and the arc-shaped shear keys 2 are 4 pieces, which ar...

Embodiment 2

[0028] Embodiment 2 is basically the same as Embodiment 1, the difference is that: the industrial steel plate rolling method can be used to manufacture a super-large-diameter pressure chamber with an outer diameter of 3m, and the existing 50mm thick steel plate in the market can be used for calculation according to the internal pressure of 20MPa. The outer casing 4 , the middle casing 5 and the inner casing 6 control the pre-pressure of the liquid filling medium 7 through a pressure-adjustable energy storage regulator 15 . The rolling and welding method can ensure the cylindricity of the pressure bulkhead, making it possible to construct a super-large-diameter high-pressure experimental chamber.

Embodiment 3

[0030] The third embodiment is basically the same as the second embodiment, the difference is: when the pressure chamber of medium and low pressure and small diameter is required, only the outer shell 4 and the inner shell 6 can be kept, and once between the outer shell 4 and the inner shell 6 It is permanently filled with the liquid filling medium 7, and the pressure of the liquid filling medium 7 does not need to be adjusted. For example, if a pressure chamber with an outer diameter of 1m is manufactured, the outer shell 4 and the inner shell 6 can be rolled with the existing 20mm thick steel plate in the market, and the space between the outer shell 4 and the inner shell 6 can be filled with liquid at one time. medium7.

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Abstract

The invention provides a thin shell nested pressure test chamber device including a test cabin body and a cabin cover matched with the test cabin body, the test cabin body is formed by connection of the upper end surface of a pressure cabin and the pressure cabin wall, the upper end surface of the pressure cabin is in a short column circular shape, the pressure cabin wall at least includes two pressure resistant shells comprising an inner shell and an outer shell, a liquid filling medium is fully filled between the inner shell and the outer shell, a closed U type cavity between the shells and an inner cavity of the shell are respectively with a pressure adjustable energy storage pressure stabilizer by an active and passive pressure balance regulation system. The thin shell nested pressure test chamber device can be prepared by rolling an industrial steel plate by multilayer wall nesting mode, so that construction of a super large diameter high-pressure test chamber is possible, a sealed cap is convenient to assemble and disassemble, the thin shell nested pressure test chamber device can be repeatedly used, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of marine engineering tests, in particular to a thin-shell nested pressure test chamber device. Background technique [0002] With the increasing demand for energy around the world, deep-water oil and gas exploration and development has become an important direction. Deepwater drilling and production equipment is subjected to high hydrostatic pressure. In order to verify the reliability and safety of the equipment in deep water, it is necessary to simulate the deep water environment in a hyperbaric chamber for testing. [0003] The design and construction of deep-water high-pressure test chambers have high requirements on structure, material, processing technology and sealing. Existing high-pressure test chamber bulkhead thickness is more than 200mm, as the effective diameter of the pressure chamber increases, the bulkhead thickness increases nearly linearly, generally formed by forging, large-scale test ch...

Claims

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Application Information

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IPC IPC(8): G01N3/12
Inventor 徐松森王宏安田凯傅忠尧任红伟张士华高圣新初新杰郭强尹慧敏魏羲
Owner CHINA PETROCHEMICAL CORP
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