CN2141013Y

CN2141013Y - Sealing bag

Info

Publication number: CN2141013Y
Application number: CN 92243957
Authority: CN
Inventors: 余春宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-08
Filing date: 1992-12-08
Publication date: 1993-08-25
Anticipated expiration: 2002-12-08

Abstract

The utility model relates to a sealing bag for plugging a pipeline and a container, which comprises a sealing chamber body and a one-way valve fixed on the sealing chamber body. When the utility model is used, the sealing bag is wound on a broken pipeline and fastened tightly by a bandage, and then, the sealing chamber body is inflated to complete a plugging function. Thereby, the utility model provides a simple and fast plugging device with high efficiency for various pipelines and containers, particularly the pipelines and the containers with flammable liquid in various large chemical plants and oil refineries.

Description

Sealing bag

The utility model relates to a kind of leakage-baffling device, particularly a kind of sealed packet that is used for pipeline, container leak stopping.

At large chemical plant, oil refinery, under the situation that large-scale oil transportation, natural gas pipe leak, existing measure is: tighten with iron wire with the rent that rag snarls pipeline (1), and shortcoming is to be difficult for tightening under pipeline has the situation of pressure, still has the seepage phenomenon after tying.(2) weld down in working order, shortcoming is that to weld difficulty in working order down big, welds to cause fire easily on the gas pipeline of combustable liquid, container.

The purpose of this utility model is to overcome the shortcoming of prior art, designs a kind of sealed packet, a kind of simple, fast and efficient leakage-baffling device is provided for various pipelines, the particularly various integrated mills of container, the pipeline that combustable liquid is arranged of oil refinery, container.

The utility model comprises a seal chamber, and the inside and outside layer of Seal cage body wall is made by elastic material such as rubber, plastics etc., and the centre of cavity wall accompanies stiffening rib, and stiffening rib is made up of rubber-like cloth or line, silk; Be fixed with one-way valve on the seal chamber, said one-way valve comprises that one is fixed in the valve stake on the seal chamber, is inserted with valve inside in the valve stake, and the air outlet end of valve inside is with a valve skin, and valve inside can be fixed on the valve stake by a pressure cap.

During use, at first sealed packet is entangled on the pipeline or container that breaks, tightens, in sealed packet, charge into gas by one-way valve then, till pipeline, container no longer leak with bandage.

This shows that this sealed packet has the following advantages:

(1) sealing of inflation back is even, and pressure is big, and having overcome at pipeline has the difficulty that is difficult for tightening under the situation of pressure, sealing back pipeline ne-leakage phenomenon;

(2) during seal operation, be not subjected to operating conditions, environment whether the restriction of inflammable gas is arranged;

(3) leak stopping is simple and direct, quick and effective.A kind of simple and direct, leak stoppage tool efficiently is provided for large chemical plant, oil refinery, great convenience is provided, thereby has improved working efficiency for the maintenance of equipment, maintenance.

Fig. 1 is a structure sectional view of the present utility model.

Fig. 2 is the structure sectional view of one-way valve.

Fig. 3 is a working state figure of the present utility model.

Below in conjunction with accompanying drawing structural principle of the present utility model and working principle are done detailed explanation.

With reference to Fig. 1,3, the utility model comprises a seal chamber 8, is fixed with one-way valve 7 on the seal chamber 8, and seal chamber 8 walls comprise internal layer 9, the skin of being made by elastic material 10, and

internal layer

9 and 10 of skins accompany stiffening rib 11.

With reference to Fig. 2, said one-way valve comprises that one can be fixed in the valve stake 1 on the seal chamber 8, is inserted with valve inside 4 in the valve stake 1, and the air outlet end of valve inside 4 is with a valve skin 2, and valve inside 4 is fixed in the valve stake 1 by pressure cap 3.

With reference to Fig. 3, the utility model is in working order the time, and one-way valve 7 is connected with a switch 14 by sebific duct 6, pipe joint 5, and the other end of switch 14 is connected with steel cylinder 15 by sebific duct 13, reduction valve 12.

During use, at first sealed packet 8 is entangled on the pipeline that breaks, tightens with bandage; Connect

sebific duct

13,6 then, open steel cylinder 15, regulate reduction valve 12, make downstream pressure reach the rated working pressure of sealed packet, open switch 14 and make sealed packet 8 inflations, till no longer leaking to pipeline, container; In the middle of sebific duct 6 and one-way valve 7, pull down again, only stay sealed packet 8 and one-way valve 7 wrappings on pipeline.When needing overhaul, gas is bled off, sealed packet 8 is pulled down, pipeline is changed or welds by one-way valve 7.Sealed packet 8 is also reusable.

The working principle of one-way valve 7 is: pressurized gas enter anterior air outlet by the center hole of valve inside 4, because pressure valve skin 2 distendings of gas, gas enters sealing package by the gap in the middle of valve skin 2 and the valve inside 4.When the sealing package internal pressure is higher than external pressure, gas can't return.The effect of pressure cap 3 is that valve inside 4 gentle goal posts 1 are forced together tightly, during venting pressure cap 3 is unclamped to get final product.

Claims

1, sealed packet comprises a seal chamber 8, and feature of the present utility model is, is fixed with one-way valve 7 on the said seal chamber 8, and the wall of seal chamber 8 comprises the internal layer 9 made by elastic material, outer 10, and internal layer 9 accompanies stiffening rib 11 with 10 of skins.

2, according to the said sealed packet of claim 1, it is characterized in that said one-way valve 7 comprises that one can be fixed in the valve stake 1 on the seal chamber 8, is inserted with valve inside 4 in the valve stake 1, the air outlet end of valve inside 4 is with a valve skin 2, and valve inside 4 is fixed in the valve stake 1 by pressure cap 3.