CN206846178U - A kind of LNG conveyance conduits straight tube leakage-stopping instrument - Google Patents
A kind of LNG conveyance conduits straight tube leakage-stopping instrument Download PDFInfo
- Publication number
- CN206846178U CN206846178U CN201621436118.XU CN201621436118U CN206846178U CN 206846178 U CN206846178 U CN 206846178U CN 201621436118 U CN201621436118 U CN 201621436118U CN 206846178 U CN206846178 U CN 206846178U
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- China
- Prior art keywords
- leak
- leak stopping
- stopping part
- tool according
- steel
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Abstract
Problem is lacked for the leak stoppage tool leaked at the top of straight tube in LNG feed-lines, there is provided a kind of efficient and convenient, safe and reliable LNG conveyance conduit straight tube leakage-stopping instruments, including a set of leak stopping external member and a set of heat-insulation layer external member, the leak stopping external member includes leak stopping part, gasket seal, steel-strip strainer and two steel bands, the heat-insulation layer external member includes straight tube chuck, insulation outer layer and filling gun, and the insulation outer layer includes injection port.Wherein, leak stopping part is fixed on tube wall by the steel band.Its is simple in construction, material is reliable, and leak stopping success rate is high.
Description
Technical field
Leakage stopping technology field is the utility model is related to, more particularly, to a kind of LNG conveyance conduits straight tube leakage-stopping
Instrument.
Background technology
Liquefied natural gas (LNG) is one of fastest-rising clean energy resource in the world, LNG pipe transportation technology conduct
A kind of new LNG mode of movements, pipeline transportation have that freight volume is big, conveying cost is low, the construction period is short, takes up an area less, safety collar
The advantages that guarantor, it has also become one of main mode of movement of the fluid such as oil, natural gas.It is big to be connected in the LNG transports built up for 2015
Project, efficiently solve the problems, such as the energy resource supply in northeast.But its capacity is big, transportation range is grown, and traffic condition is harsh.Once hair
Raw leakage, it is extremely dangerous.Extensive disaster accident is easily caused if dealt with improperly.Cause huge casualties and economy
Property loss.And currently without the targetedly leak stoppage tool for LNG transport pipelines.
Utility model content
The utility model is under the conditions of solving prior art, for what is leaked at the top of straight tube in LNG feed-lines
Leak stoppage tool lacks problem, there is provided a kind of efficient and convenient, safe and reliable leak stoppage tool.
In order to solve the above problems, the utility model is achieved through the following technical solutions：
A kind of LNG conveyance conduits straight tube leakage-stopping instrument, including a set of leak stopping external member and a set of heat-insulation layer external member, institute
Stating leak stopping external member includes leak stopping part, gasket seal, steel-strip strainer and two steel bands, and the heat-insulation layer external member is pressed from both sides including straight tube
Set, insulation outer layer and filling gun, the insulation outer layer include injection port.Wherein, the steel band is used to leak stopping part being fixed on pipe
On wall.
Further, the injection port is hole for injecting glue.
Further, the leak stopping part is a diameter of 700mm pipeline.
Further, the pipeline is made up of austenitic cryogenic steel customization sheet material.
Further, the gasket seal material is polytetrafluoroethylene (PTFE).
Further, the size of the gasket seal and leak stopping part matches.So, in leak stopping, it becomes possible to according to letting out
Leak size selects the leak stopping part of suitable size, and gasket seal is cut into the size of suitable leak stopping part.
Further, the leak stopping part has a raised surface, and the surface is provided with two grooves, the groove
Size be adapted with the size of the steel band.In this way, it is possible to by the way that two steel bands are fixed in groove, make leak stopping part
It will not slip.Specifically two steel bands are passed through into leak stopping part upper groove, steel-strip strainer is fixed on support and let out
Leak offside, and steel band is tightened up, so that the position of leak stopping part is fixed.
Further, the leak stopping part surface is provided with relief valve, and the relief valve is connected in outside air and groove
Portion.
Further, the leak stopping part has from its own outer rim to the incline structure of groove transition.This incline structure
Make to form certain space between leak stopping part and pipeline, gas is spread to groove, be easy to pressure release and guiding gas.
Further, the leak stopping part is made up of low-temperature steel.For example, using austenitic cryogenic steel, in order in -163 degree
Also the intensity of steel can be kept.
Compared with prior art, the beneficial effects of the utility model are：Leak stopping part of the present utility model is simple in construction, can
Conveniently realize installation leak stopping；Material is reliable, and leak stopping material uses low temperature material, spends low temperature lower seal pad -162
Piece, leak stopping part can still keep its material property；Leak stopping success rate is high, and leak stopping front opening relief valve effectively reduces leak stopping pressure.
If leak stopping is unsuccessful, relief valve can be opened and carry out second-order correction.Install heat-insulation layer additional, can both strengthen plugging effect, can prevent again
Tube wall surface freezes, and keeps liquid stabilising in LNG pipelines.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device for plugging；
Fig. 2 is the front view that the utility model is incubated external member；
Fig. 3 is the structural representation of the utility model device for plugging.
Wherein, in Fig. 1,1. leak stopping parts, 2. relief valves, 3. steel bands, 4. grooves, 5. steel-strip strainers
In Fig. 2,6. legs, 7. hole for injecting glue
Embodiment
Explanation is further explained to the utility model below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, according to preferred embodiment of the present utility model, there is provided a kind of LNG conveyance conduits straight tube is let out
Leak leak stoppage tool, including a set of leak stopping external member and a set of heat-insulation layer external member, the leak stopping external member include leak stopping part, gasket seal,
Steel-strip strainer and two steel bands, the heat-insulation layer external member includes straight tube chuck, is incubated outer layer and filling gun, outside the insulation
Layer includes injection port.Wherein, leak stopping part is fixed on tube wall by the steel band.
Preferably, the injection port is hole for injecting glue.
Preferably, the leak stopping part is a diameter of 700mm pipeline.
Preferably, the pipeline is made up of austenitic cryogenic steel customization sheet material.
Preferably, the gasket seal material is polytetrafluoroethylene (PTFE).
Preferably, the size of the gasket seal and leak stopping part matches.So, in leak stopping, it becomes possible to according to leakage
Mouth size selects the leak stopping part of suitable size, and gasket seal is cut into the size of suitable leak stopping part.
Preferably, the leak stopping part has a raised surface, and the surface is provided with two grooves, the groove
Size is adapted with the size of the steel band.In this way, it is possible to by the way that two steel bands are fixed in groove, make leak stopping part not
It can slip.Specifically two steel bands are passed through into leak stopping part upper groove, steel-strip strainer is fixed on leakage with support
Mouth offside, and steel band is tightened up, so that the position of leak stopping part is fixed.
Preferably, the leak stopping part surface is provided with relief valve, the relief valve connection outside air and inside grooves.
Preferably, the leak stopping part has from its own outer rim to the incline structure of groove transition.This incline structure makes
Certain space is formed between leak stopping part and pipeline, gas is spread to groove, is easy to pressure release and guiding gas.
Preferably, the leak stopping part is made up of low-temperature steel.For example, using austenitic cryogenic steel, in order in -163 degree
The intensity of steel can be kept.
The application method of leak stoppage tool of the present utility model is as follows：Peel off the ice sheet near leakage hole and leakage hole one encloses
Protective layer, relief valve 2 is opened, active pressure release is carried out to pressure in leak stopping part 1；Sealing leakage glue is smeared in the groove 4 of leak stopping part 1,
Leak stopping part 1 is covered on leakage point；Two steel bands 3 are passed through into leak stopping part 1, using steel-strip strainer 5, with two bar steel
Leak stopping part 1 is fixed on tube wall by band 3；Outer layer jacket will be incubated outside leakage hole with chuck, and phase-change material will be noted by injection port
Enter to form heat-insulation layer；Relief valve 2 is closed, gas is will leak out using conduit and guides to closed container or other regions；If leak stopping is not
Success, can open relief valve 2, active pressure release be carried out to pressure in leak stopping part 1, then again according to above-mentioned steps to leakage
Mouth carries out leak stopping.Can be to carrying out water conservancy diversion to the gas of leakage with conduit when needing.After determining leak stopping success, selection is suitable big
Small insulation external member is fixed on outside leakage hole using leg 6, and fixed screw is tightened, and phase-change material is passed through into the note of injection port 7
Enter to form heat-insulation layer.Now leak stopping is completed.
For the leak stopping part 1 that above-mentioned leak stopping external member uses for austenitic cryogenic steel, it is polytetrafluoroethylene (PTFE) to be incubated leg in external member
Material, wherein " phase-change material " refers to the material undergone phase transition at low temperature, such as paraffin, dimethyl silicone polymer etc..
One embodiment of the present utility model is described in detail above, but the content is only the utility model
Preferred embodiment, it is impossible to be considered as be used for limit practical range of the present utility model.It is all according to present utility model application scope institute
The equivalent change of work and improvement etc., all should still be belonged within patent covering scope of the present utility model.
Claims (10)
1. a kind of LNG conveyance conduits straight tube leakage-stopping instrument, including a set of leak stopping external member, it is characterised in that also including a set of
Heat-insulation layer external member, the leak stopping external member include leak stopping part, gasket seal, steel-strip strainer and two steel bands, the heat-insulation layer set
Part includes straight tube chuck, insulation outer layer and filling gun, and the insulation outer layer includes injection port.
2. leak stoppage tool according to claim 1, it is characterised in that the injection port is hole for injecting glue.
3. leak stoppage tool according to claim 1, it is characterised in that the leak stopping part is a diameter of 700mm pipeline.
4. leak stoppage tool according to claim 3, it is characterised in that the pipeline customizes sheet material system by austenitic cryogenic steel
Into.
5. leak stoppage tool according to claim 1, it is characterised in that the gasket seal material is polytetrafluoroethylene (PTFE).
6. leak stoppage tool according to claim 1, it is characterised in that the size phase of the gasket seal and leak stopping part
Match somebody with somebody.
7. leak stoppage tool according to claim 1, it is characterised in that the leak stopping part has a raised surface, should
Surface is provided with two grooves, and the size of the groove is adapted with the size of the steel band.
8. leak stoppage tool according to claim 7, it is characterised in that the leak stopping part surface is provided with relief valve, described
Relief valve connects outside air and inside grooves.
9. leak stoppage tool according to claim 8, it is characterised in that the leak stopping part has from its own outer rim to groove
The incline structure of transition.
10. leak stoppage tool according to claim 1, it is characterised in that the leak stopping part is made up of low-temperature steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621436118.XU CN206846178U (en) | 2016-12-21 | 2016-12-21 | A kind of LNG conveyance conduits straight tube leakage-stopping instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621436118.XU CN206846178U (en) | 2016-12-21 | 2016-12-21 | A kind of LNG conveyance conduits straight tube leakage-stopping instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206846178U true CN206846178U (en) | 2018-01-05 |
Family
ID=60789093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621436118.XU Expired - Fee Related CN206846178U (en) | 2016-12-21 | 2016-12-21 | A kind of LNG conveyance conduits straight tube leakage-stopping instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206846178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194759A (en) * | 2018-02-12 | 2018-06-22 | 大连海事大学 | The automation leak stopping system and application method of a kind of pipeline |
| CN110873255A (en) * | 2019-08-20 | 2020-03-10 | 中海油(福建)应急维修有限责任公司 | Low-temperature pipeline flange cladding device and method |
-
2016
- 2016-12-21 CN CN201621436118.XU patent/CN206846178U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194759A (en) * | 2018-02-12 | 2018-06-22 | 大连海事大学 | The automation leak stopping system and application method of a kind of pipeline |
| CN108194759B (en) * | 2018-02-12 | 2023-05-26 | 大连海事大学 | Automatic mechanical plugging system for pipeline and use method |
| CN110873255A (en) * | 2019-08-20 | 2020-03-10 | 中海油(福建)应急维修有限责任公司 | Low-temperature pipeline flange cladding device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 Termination date: 20181221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |