Device for solving valve faults in space division system and operation method

An air separation system and valve technology, which is applied to the valve operation/release device, valve device, valve details, etc., can solve the problems that cannot be effectively solved, does not have replacement conditions, and has a long order cycle, and achieves novel, The effect of reducing the downtime rate and convenient operation

Active Publication Date: 2013-09-18
MAGANG (GROUP) HOLDING CO LTD +1
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  • Claims
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AI Technical Summary

Problems solved by technology

However, there are hundreds of valves in the system. Due to the high cost of such spare parts and the long order cycle, it is impossible to order all of them in a short period of time, and there is no replacement condition during the production period. Therefore, this problem has not been effectively solved.

Method used

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  • Device for solving valve faults in space division system and operation method

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Embodiment Construction

[0022] Depend on figure 1 It can be seen from the shown structure that the device for solving valve failures in the air separation system includes a first shut-off valve 1, a first pressure reducing valve 2, a first pressure gauge 3 and a valve cylinder 4 connected in series in sequence, located between the first pressure gauge 3 and the valve cylinder 4. There is an instrument pipe connected in series between the valve cylinders 4 through a tee, and the instrument pipe connected in series includes a second cut-off valve 5, a second pressure gauge 6, a second pressure reducing valve 7, and a third pressure gauge 8 in series. and an external gas source 9, the second shut-off valve 5 is connected with the first pressure gauge 3 and the valve cylinder 4 through a tee, the external gas source 9 is located at the end of the pipeline, and the external gas source 9 is a high-pressure gas cylinder containing nitrogen gas .

[0023] Using the above device, the operation method for pre...

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Abstract

The invention discloses a device for solving valve faults in a space division system and an operation method thereof. The device comprises a first stop valve (1), a first decompression valve (2), a first pressure meter (3) and a valve air cylinder (4) which are sequentially connected in series, wherein one path of instrument pipe is further serially connected between the first pressure meter (3) and the valve air cylinder (4) through a tee joint; one path of the serially-connected instrument pipe comprises a second stop valve (5), a second pressure meter (6), a second decompression valve (7), a third pressure meter (8) and an external air source (9) which are sequentially connected in series; and the external air source (9) is located at the tail end of a pipeline. The device for solving the valve faults in the space division system does not influence normal work of the other valves through a newly-increased air source supply manner when a large-sized valve works insensitively or is clamped, so that the broken valve can work normally and the influences of stopping an oxygen generator due to the valve faults are eliminated.

Description

technical field [0001] The invention relates to an air separation device, in particular to a device and an operation method for solving gas path failures in larger valves or valves without manual operation in the air separation system. Background technique [0002] "Air separation unit or air separation system" is a technical term in this field, which refers to the equipment system for extracting oxygen, nitrogen, argon and other gases by cryogenic rectification, also called oxygen generator system. A large number of pneumatic valves are used in the air separation system. For large and medium valves with a diameter of 800cm or more, due to the large diameter, high precision, and complicated process of such valves, they are not equipped with manually adjustable handwheels. Therefore, once a failure occurs, it often brings difficulties to maintenance and repair, and it is difficult to eliminate it in a short period of time. Moreover, with the increase of the service life of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/12
Inventor 蒋小林
Owner MAGANG (GROUP) HOLDING CO LTD
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