A method for stopping leakage of non-stop valve under pressure
A valve and leak-stop technology, which is applied in the field of equipment maintenance, can solve the problems of valve gland leakage, high pressure and unable to replace packing, etc., and achieve the effect of solving the problem of valve leakage
Inactive Publication Date: 2016-04-13
JIGANG GRP
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Problems solved by technology
[0003] In view of the above situation, the present invention aims at the problem that the packing cannot be replaced due to the high pressure at the valve gland, and adopts the method of partial replacement of the packing step by step, so as to realize non-stop production and solve the problem of leakage of the valve gland
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Embodiment Construction
[0018] Such as Figure 1 to Figure 2 shown.
[0019] A method for stopping leakage of a non-stop valve under pressure is carried out in sequence according to the following steps.
[0020] A. After the valve leaks at the job site, confirm the basic situation of the valve, the location of the leak, the leakage situation, the conveying medium and the conveying pressure, etc. Select suitable materials and tools for plugging leakage according to the specific situation of implementation.
[0021] B. Prepare the packing, bolts, tools and personal protective equipment that need to be replaced.
[0022] C. First, select the low-pressure side with less serious leakage to stop the leakage, and remove the bolt (1). During disassembly, use a screwdriver to gently lift the gland to prevent overflow due to excessive medium pressure.
[0023] D. Clean and smooth the surface of the gland (3) with a side shovel.
[0024] E. Evenly stuff the filler prepared in advance into the gland (3), an...
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The invention provides a method for preventing a valve from leaking under pressure without stopping production. The method aims to solve the problem that filler cannot be replaced due to large pressure at a gland of the valve; the leaking problem of the gland of the valve is solved without stopping production in the method that the filler is replaced part by part. According to the method, the filler is replaced part by part; only one bolt is detached each time, a part of the filler is replaced, then another bolt is detached after the preceding bolt is fastened, a part of the filler is replaced, and the process is repeated until the gland is filled with the filler. The filler of the gland is replaced part by part, only gland bolt is detached when the filler is replaced each time, and the problem that the filler is difficult to replace due to the fact the gland cannot be opened because of large pressure is solved. The method effectively solves the problems that in continuous production, after glands of valves at many key positions leak, the filler cannot be replaced due to large pressure, leaking cannot be stopped, and production has to stop for overhaul, and is low in investment and high in practicability.
Description
technical field [0001] The invention provides a leak-stopping and repairing method that can be widely applied to a valve at a key position without stopping production, and belongs to the technical field of equipment maintenance. Background technique [0002] Leakage of the valve gland is a common problem in production. You only need to open the valve gland and replace the filler to solve the problem. However, in continuous production and operation, many valves are located in more important and special locations, so they do not have the conditions to stop production for maintenance as soon as possible after leakage. The media transported by chemical plants are relatively special, mostly dangerous media such as acid and alkali. If the valve leaks and is not repaired in time, there will be great safety hazards. After the leakage of the gland, due to the high pressure, it is impossible to open the gland to replace the packing, and it becomes very troublesome to handle. If neces...
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IPC IPC(8): F16K27/12B25B27/14
CPCB25B27/14F16K27/12
Inventor 邱南南仇保荣赵墅茵张满赵孟
Owner JIGANG GRP