CN2324370Y

CN2324370Y - Leaking stoppage device for pipeline with pressure

Info

Publication number: CN2324370Y
Application number: CN 97231683
Authority: CN
Inventors: 刘峰; 顾望平; 单清涛; 冯森; 杨文德
Original assignee: Sinopec Maoming Co
Current assignee: Sinopec Maoming Co
Priority date: 1997-12-26
Filing date: 1997-12-26
Publication date: 1999-06-16
Anticipated expiration: 2007-12-26

Abstract

The utility model relates to a leaking stoppage device for a pipeline with pressure, which comprises an upper steel clip, a lower steel clip, a sealing plate, a shim plate, and a screw bolt. The utility model is characterized in that a pressure relieving small hole which is a little larger than the hole diameter of a leakage point is arranged on the sealing plate. A hole is arranged on the upper steel clip. One end of a seamless steel pipe is inserted in the hole, and the end is welded on the upper steel clip. The other end of the seamless steel pipe is fixedly connected with a gate valve. The utility model is especially suitable for leaking stoppage for pipelines which carries combustible and explosive media with higher pressure and temperature.

Description

The leakage-baffling device of pipeline with pressure

The utility model provides a kind of leakage-baffling device of pipeline with pressure, is particularly useful for being loaded with the pipe plugging of the inflammable and explosive medium of elevated pressures and temperature, belongs to pipeline.

In chemical plant installations, for the pipe plugging that is loaded with inflammable and explosive medium, the normal leakage-baffling device of checking card that adopts, its structure comprises steel folder 3, following steel folder 6, sealing plate 4, backing plate 7, bolt 5 as described in Figure 1.It is to roll or cut into semicircular pipe with seamless steel pipe with steel plate that last steel folder 3 and following steel press from both sides 6, and two side ends solid welding respectively has otic placode, and each otic placode is offered at least one screw; Sealing plate 4 and backing plate 7 usefulness rubber or tetrafluoroethylene etc. have certain plasticity or flexible material is made; Other has some bolts.During use, sealing plate 4 is placed leakage point 2 places of pipeline 1 outer wall, place pipeline 1 outer wall on opposite again with backing plate 7, use steel folder 3 then and place the sealing plate 4 and backing plate 7 outsides respectively with following steel folder 6, penetrating steel folder 3 with bolt 5 presss from both sides in the screw of 6 otic placodes with following steel, tight a bolt 5, sealing plate 4 is pushed down leakage point 2, it is no longer leaked.

The above-mentioned leakage-baffling device of checking card is simple, easily implement, and need not adopt " getting angry " means such as electric welding during use, thereby often is applied to be loaded with the pipe plugging of the inflammable and explosive medium of lower pressure and temperature.But, in the process of utilizing bolt fastening sealing plate 4, the problem that leaking medium splashes everywhere can appear, and especially under elevated pressures and temperature, " splashing " is serious especially.It is very unsafe going out inflammable and explosive medium for " splashing ", thereby the leakage-baffling device of checking card of prior art should not be used to be loaded with the pipe plugging of the inflammable and explosive medium of elevated pressures and temperature.Therefore, solving the Pipe leakage stopper that is loaded with inflammable and explosive medium under elevated pressures and the temperature, is important problem in the current pipeline leakage stopping technology.

The purpose of this utility model is intended to overcome the defective of prior art and a kind of pipeline with pressure leakage-baffling device of providing, is particularly useful for being loaded with the pipe plugging of the inflammable and explosive medium of elevated pressures and temperature.

The purpose of this utility model is achieved in that a kind of pipeline with pressure leakage-baffling device, comprise steel folder, down steel folder, sealing plate, backing plate and bolt, it is characterized in that on sealing plate, offering a pressure aperture that disappears that is slightly larger than the leakage point aperture, on last steel folder, offer a hole in addition, one end of one seamless steel pipe inserts this hole, and should hold solid welding to press from both sides at last steel, the affixed gate valve of the other end of seamless steel pipe.

When higher, sealing plate and backing plate select for use stereotype or copper coin etc. to have the metallic material of certain a piece of wood serving as a brake to halt a carriage for the pressure and temperature that is loaded with medium in the pipeline; When the pressure and temperature of medium was low, sealing plate and backing plate then selected for use rubber plate, tetrafluoroethylene etc. to have plasticity or flexible material.

During use, sealing plate is placed the leakage point place of pipeline outer wall, make disappearing on the sealing plate press aperture facing to leakage point, place the pipeline outer wall on leakage point opposite again with backing plate, use steel folder and following steel then and press from both sides the outside that places sealing plate and backing plate respectively, and make the seamless steel pipe on the steel folder press aperture and leakage point facing to disappearing on the sealing plate, penetrate with bolt at last, screw on the following steel folder otic placode, open gate valve, in the process that tights a bolt, the medium that leaks out by sealing plate disappear and press aperture through seamless steel pipe, gate valve and discharging makes between steel folder and sealing plate surface, unlikely generation high pressure between sealing plate and pipeline external surface, thus reach sealing between above-mentioned each surface around the leakage point, when bolt is screwed to a certain degree, dielectric leakage disappears, and this moment, closing gate valve was finished leak stopping.

Pipeline with pressure leakage-baffling device of the present utility model is simple in structure, easy to use, applied widely, not only can be used for the higher non-inflammable and explosive occasion of pressure and temperature, and be particularly useful for the higher inflammable and explosive occasion of pressure and temperature, as calculated, also can be used for the leak stopping of high pressure pipe line, practical.

The drawing of accompanying drawing is described as follows:

Fig. 1 is existing check card leakage-baffling device and user mode figure thereof;

Fig. 2 is pipeline with pressure leakage-baffling device of the present utility model and user mode figure thereof;

Fig. 3 is the rear view of Fig. 2.

Below in conjunction with embodiment and conjunction with figs. the technical solution of the utility model is done further statement:

Fig. 2 is the utility model pipeline with pressure leakage-baffling device and user mode figure thereof.As shown in the figure, the inboard at last steel folder 3 and following steel folder 6 is provided with sealing plate 4 and backing plate 7 respectively.Sealing plate 4 offers to disappear presses aperture 9, and the aperture of this aperture 9 is slightly larger than the aperture of leakage point 2.Last steel folder 3 is offered a hole, an end of a seamless steel pipe 8 is inserted this hole, and should hold solid welding to press from both sides on 3 at last steel, and its weld seam is 10; The affixed gate valve 11 of the other end of seamless steel pipe.Other has several bolts 5 and forms pipeline with pressure leakage-baffling device of the present utility model.

The upper and lower steel folder of present embodiment cuts into semicircle with seamless steel pipe, and each solid welding of two side ends has otic placode, offers 2 screws on each otic placode.Sealing plate is made with stereotype.

Among Fig. 2, the 1st, the pipeline of leakage point 2 appears.Fig. 3 is the rear view of Fig. 2.Fig. 2 and Fig. 3 show the user mode of the utility model pipeline with pressure leakage-baffling device simultaneously.

Present embodiment is that 1MPa, external diameter are that the rich gas of 100 millimeters heavy-oil catalytic device absorbs on the cat head safety valve preceding pipeline and uses at pressure, and plugging effect is fine.

Claims

1, a kind of pipeline with pressure leakage-baffling device, its formation comprise steel folder, down steel folder, sealing plate, backing plate and bolt, it is characterized in that on sealing plate, offering a pressure aperture that disappears greater than the leakage point aperture, offer a hole at last steel folder in addition, one end of one seamless steel pipe inserts this hole, and should hold solid welding to press from both sides at last steel, the affixed gate valve of the other end of seamless steel pipe.

2, by the described pipeline with pressure leakage-baffling device of claim 1, it is characterized in that sealing plate, backing plate adopts and the metallic material of flexible.

3, by the described pipeline with pressure leakage-baffling device of claim 1, it is characterized in that sealing plate, backing plate adopts has plasticity or flexible material.