CN105546265B - Gas pipeline pressurize pressure relief device - Google Patents
Gas pipeline pressurize pressure relief device Download PDFInfo
- Publication number
- CN105546265B CN105546265B CN201510910972.9A CN201510910972A CN105546265B CN 105546265 B CN105546265 B CN 105546265B CN 201510910972 A CN201510910972 A CN 201510910972A CN 105546265 B CN105546265 B CN 105546265B
- Authority
- CN
- China
- Prior art keywords
- soft bag
- gas
- gas pipeline
- pond body
- overflow pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
Abstract
Gas pipeline pressurize pressure relief device of the present invention, closed cell body sidewall, which runs through, is provided with air inlet pipe, and the inside of closing pond body is provided with inflatable soft bag, air inlet pipe insertion soft bag and is tightly connected with soft bag；The upper bag wall of soft bag is provided with check valve, and the upper wall of closing pond body runs through the relief tube provided with pluggable and open check valve.The joint of gas pipeline is connected by pipeline with air inlet pipe so that the gas pressure in gas pipeline is identical with the gas pressure in soft bag.Soft bag serves control pressure and collects the effect of gas.When the gas pressure in gas pipeline continues to increase, check valve is moved up until relief tube passes completely through check valve, so that the inside of soft bag is in communication with the outside by relief valve so that over-pressed gas is discharged into air rapidly by relief tube, play a part of external pressure release.To a certain extent, soft bag can be ruptured prior to gas pipeline for the other volumetric expansion for working as soft bag, and the gas after rupture is discharged from relief valve, plays the explosion-proof effect of the limit.
Description
Technical field
The present invention relates to gas safe transport field, and in particular to a kind of gas pipeline pressurize pressure relief device.
Background technology
Natural gas refers to a naturally occurring tangential gas in nature, including various natures in atmospheric thermodynamics, hydrosphere, lithosphere
The gas of process formation（Including casing-head gas, reservoir gas, gas of mud volcano, coal bed gas and biological generation gas etc.）.And people it is long-term with
Carry out the definition of general " natural gas ", be the narrow sense definition from energy point of view, refer to the hydro carbons naturally contained in stratum
With the mixture of non-hydrocarbon gases.In petroleum geology, casing-head gas and reservoir gas are often referred to.It is constituted based on hydro carbons, and
Contain non-hydrocarbon gas.
Natural gas is contained in underground porous gap rock stratum, including casing-head gas, reservoir gas, coal bed gas, gas of mud volcano and biology
Gas etc. is generated, also there is a small amount of for coal seam.It is high-grade fuel and industrial chemicals.Natural gas is mainly used for making fuel, can make
Carbon black, chemicals and liquefied petroleum gas are made, the propane, the butane that are produced by natural gas are the important source materials of modern industry.Naturally
Gas is main to be made up of gaseous state low molecular hydrocarbons and non-hydrocarbon gas mixing.Natural gas main component alkane, wherein methane accounts for the overwhelming majority,
Separately have a small amount of ethane, propane and butane, typically have in addition hydrogen sulfide, carbon dioxide, nitrogen and aqueous vapor and a small amount of carbon monoxide and
Micro rare gas, such as helium and argon.Natural gas is before end user is sent to, to help leak detection, also with mercaptan,
Thiophane etc. adds smell to natural gas.
At present, the transport of pipe natural gas is by the way of gas pipeline.The cost of pipeline transportation is relatively low, can be grown
Distance transport.But pipeline transportation is in addition to needing to solve sealing and the leakage problem of joint, in addition it is also necessary to prevent in pipeline
The explosion issues that gas pressure increases sharply and caused.Under normal circumstances, safety relief valve is designed with the initiating terminal of pipeline, for controlling
The pressure of tubing giving sufficient strength.But do not have effective pressure-relief measure in the interlude of pipeline, will easily once manifold pressure is excessive
The damage of pipeline is caused, causes security incident.Moreover, the interlude of pipeline is usually to be embedded in underground, even if increase relief valve,
The problem of being difficult in the presence of installation.Furthermore, the operation principle of relief valve is that directly over-pressed gas is discharged into air, can not
The portion gas is recycled, causes to waste.
The content of the invention
It is an object of the invention to provide a kind of gas pipeline pressurize pressure relief device, on gas pipeline, peace is played
Effect that is complete explosion-proof and reclaiming pressure release gas.
To reach above-mentioned purpose, the technical scheme is that：Gas pipeline pressurize pressure relief device, including it is arranged on ground
On closing pond body, the closed cell body sidewall, which runs through, is provided with air inlet pipe, and the inside of the closing pond body is provided with inflatable soft
It is tightly connected in bag, the air inlet pipe insertion soft bag and with soft bag；The upper bag wall of the soft bag is provided with check valve, the closing
The upper wall of pond body runs through provided with the relief tube that can be inserted into simultaneously open check valve.
During using above-mentioned technical proposal, pond body will be closed and be arranged on the top of buried gas pipeline, and by appendix
The joint in road is connected by pipeline with air inlet pipe so that the gas pressure in gas pipeline is identical with the gas pressure in soft bag.
When the gas pressure increase in gas pipeline, gas is entered in soft bag by air inlet pipe so that the gas pressure in soft bag
It is always consistent with gas pressure in gas pipeline.After the air pressure in gas pipeline is reduced, the gas in soft bag is stored in
Cognition is reentered in gas pipeline.So soft bag just serves control pressure and collects the effect of gas, and relatively conventional lets out
The structure of pressure valve, can effectively utilize pressure release gas.Furthermore, when the gas pressure in gas pipeline continues to increase, soft bag
Volume persistently becomes big, until the check valve on the upper bag wall of soft bag is moved up until relief tube passes completely through check valve so that
The inside of soft bag is in communication with the outside by relief valve so that over-pressed gas is discharged into air rapidly by relief tube, is played pair
The effect of outer pressure release.In addition, if without pressure release is coordinated between check valve and relief tube in soft bag, when the volumetric expansion of soft bag
To a certain extent, due to intensity of the intensity well below gas pipeline of soft bag, soft bag can rupture prior to gas pipeline, break
Gas after splitting is discharged from relief valve, plays the explosion-proof pressure release effect of the limit.
Further improvement project, the upper wall of the closing pond body is also extended through provided with overflow pipe, the overflow pipe be provided with
Close the unidirectional baffle plate that closing water inlet is hinged with the water inlet of pond body connection, the overflow pipe；The upper bag wall of the soft bag
It is provided with the push rod that can be inserted into overflow pipe and push up opening one-way baffle plate.In use, it is full of water in closing pond body so that appendix
The hydraulic pressure in the air pressure and closing pond body in air pressure, soft bag in road is in pressure identical state all the time.When the gas in software
The increase of body pressure, and can not by relief tube to external world pressure release when, the push rod in soft bag continues to move up, and top is opened on overflow pipe
Unidirectional baffle plate, the water closed in pond body is discharged in the presence of hydraulic pressure by overflow pipe.On the one hand, discharged from overflow pipe
Water can play a part of staff on prompting bottom surface, on the other hand, by discharging water, reduce hydraulic pressure so that soft bag can be with
Continue to expand, until soft bag rupture.After soft bag rupture, gas can be discharged by relief tube and overflow pipe, play the work of pressure release
With.
Further improvement project, the lower end of overflow pipe is threeway section, and the water inlet is located on the horizontal detail of threeway section,
The unidirectional baffle plate is located on the perpendicular upper detail of threeway section.Threeway section is set, there can be a special water inlet, and without allowing
Push rod is inserted in threeway section by water inlet, improves the reliability of total.
Further improvement project, the bottom of the check valve sets clapper, the lower surface of the relief tube with it is unidirectional
The distance between flap is less than the distance between the upper surface of push rod and unidirectional baffle plate.Clapper is simple in construction, can play
The effect of unidirectional blocking.In addition, above-mentioned setting, it can be ensured that relief tube works prior to relief tube under normal circumstances so that
The preferential pressure release of whole device, can not warned and pressure release during normally pressure release by overflow pipe draining.
Further improvement project, the openend that the relief tube and overflow pipe stretch out closing pond body is horizontally disposed with.Openend
It is horizontally disposed that sandstone can be prevented to be directly entered wherein, play protective conduit and anti-blocking effect.
Further improvement project, the direction of the openend of the relief tube and overflow pipe is opposite.Set opposite direction can
To there is bigger installing space, and can the spacing of relief tube and overflow pipe be set smaller.
Further improvement project, the bottom of the soft bag is fixedly connected with closing the bottom of pond body.The setting can be limited
The position of soft bag, and limit the expansion direction of soft bag so that pressure release is more accurate and reliable.
Further improvement project, the upper end of the unidirectional baffle plate is fixedly connected with steel wire rope, and the end of the steel wire rope is stretched
Go out overflow pipe.Steel wire rope is set, unidirectional baffle plate can be opened by pullling the end of steel wire rope, can be for detection closing pond body
The hydraulic pressure of inside or thereto priming petock.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of gas pipeline pressurize pressure relief device embodiment of the present invention；
Fig. 2 is structural representations of the Fig. 1 under pressure release state.
Embodiment
Reference：Close pond body 1, sealing gasket 11, air inlet pipe 2, soft bag 3, check valve 4, relief tube 5, push rod 6, spilling water
Pipe 7.
As shown in figure 1, gas pipeline pressurize pressure relief device of the present invention, includes the closing pond body 1 set on the ground, envelope
Armored concrete cast in situs can be used by closing pond body 1, it would however also be possible to employ prefabrication, field erected mode.Close pond body 1
Build in the top of gas pipeline, the side of closing pond body is provided with an air inlet pipe 2, air inlet pipe 2 is used for and land burial
Gas pipeline threeway reserve junction block be attached.In closing pond body 1, the soft bag 3 of a closing, air inlet pipe are installed
2 are stretched into soft bag 3, and air inlet pipe 2 is connected with the closing of soft bag 3.The bottom of soft bag 3 is fixed on the bottom of closing pond body 1, soft bag
3 top is provided with a check valve 4, and check valve 4 is provided with clapper, and clapper can only be opened from top top.In closing
The top of pond body 1 is provided with a relief tube 5.Sealing gasket 11 is installed on the top wall for closing pond body 1, relief tube 5 inserts close
In packing 11, No leakage gap between relief tube 5 and closing pond body 1 is ensured by sealing gasket 11.The lower end insertion of relief tube 5 is soft
In check valve 4 on bag 3, and in the normal state, left between the lower surface of relief tube 5 and the clapper of check valve 4
Gap.In addition, in the top of soft bag 3, a vertical push rod 6 is fixed with positioned at the side of check valve 4.In closing pond body 1
One overflow pipe 7 is installed, the upper end of push rod 6 is inserted from the lower port of overflow pipe 7 on the wall of top on the position of correspondence push rod 6.
The hypomere of overflow pipe 7 is a threeway section, and the mouth of pipe of the transverse pipe of threeway section is connected with closing the inner chamber of pond body 1.Threeway section
One unidirectional baffle plate is installed, the unidirectional panel hinge is on the inwall of threeway section, and unidirectional baffle plate can be at upper opening
Upper Unscrew threeway section, torsion spring is provided with the rotating shaft of unidirectional baffle plate, forces unidirectional baffle plate to be rotated down by torsion spring
Horizontal level closes threeway section.In design, the distance between the upper surface of push rod 6 and unidirectional baffle plate are more than the lower end of relief tube 5
The distance between face and the lower section clapper of check valve 4.
As shown in Fig. 2 in use, the relief fittings of air inlet pipe 2 and the gas pipeline of land burial is utilized into pipeline communication,
And fill water in closing pond body 1.Due in the insertion soft bag 3 of air inlet pipe 2 so that in the air pressure and gas pipeline in soft bag 3
Air pressure it is identical.When the gas pressure increase in gas pipeline, gas is entered in soft bag 3 so that the volume of soft bag 3 is swollen
It is swollen.Due to being loaded with water, and the entirely space of one closing of closing pond body 1 formation in whole closing pond body 1, when soft bag 3
After volumetric expansion, the hydraulic pressure in closing pond body 1 can increase, and remain the air pressure in the air pressure in soft bag 3, gas pipeline, seal
The hydraulic pressure three closed in pond body 1 is equal.When the air pressure in gas pipeline does not continue to increase, the volume of whole soft bag 3 stops
Expansion, and soft bag 3 also acts the effect for collecting gas, after the air pressure in gas pipeline recovers normal, the gas in soft bag 3
Cognition is entered in gas pipeline, is served pressure regulation and is collected the effect of pressure release gas.Furthermore, when the gas pressure in gas pipeline
When power continues to increase, the volume prolonged expansion of soft bag 3 so that the bag wall on the top of soft bag 3 continues upward movement, in the process,
The depth in the check valve 4 in the insertion soft bag 3 of relief tube 5 in closing pond body 1 is continuously increased, until relief tube 5 is penetrated unidirectionally
The clapper of valve 4 so that relief tube 5 is connected with soft bag 3, the gas in soft bag 3 is continually discharged from relief tube 5, is risen
To the effect of limit pressure release, exploded after preventing whole device pressure overload.Consideration in safety, if above-mentioned check valve
4 and relief tube 5 when not playing a part of limit pressure release, it is desirable to have intuitively Observations Means.Due to there is one in soft bag 3
Push rod 6, during soft bag 3 expands, the length of threeway section is also continuously increased on the insertion overflow pipe 7 of push rod 6, until push rod 6
When the length of insertion is enough to push up out the unidirectional baffle plate on threeway section, the water in closing pond body 1 in the presence of hydraulic pressure, passes through three
Logical section, flows out from overflow pipe 7.On the one hand, the staff on ground can be judged by the current flowed out from overflow pipe 7
The working condition of check valve 4 and relief tube 5, furthermore, by overflow pipe 7, it can also play to the water pressure release in closing pond body 1
Effect, can alleviate soft bag 3 in a short time, continue to expansion.If can not handle in time, the water in closing pond body 1
When being discharged to certain, the meeting prolonged expansion of soft bag 3 ruptures until whole soft bag 3, after rupture, in soft bag 3 and gas pipeline
Gas security incident will be prevented by relief tube 5 and the direct pressure release of overflow pipe 7.
In addition, being fixedly connected with steel wire rope in the upper end of unidirectional baffle plate, overflow pipe 7 is stretched out in the end of the steel wire rope.If
Steel wire rope is put, unidirectional baffle plate can be opened by pullling the end of steel wire rope, can be for the water inside detection closing pond body 1
Pressure, by hydraulic pressure data determination barometric information, or in closing pond body 1, perfusion adds water thereto after a large amount of losses of water.
Above-described is only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the inventive concept of the premise, several modifications and improvements can also be made, these should also be considered as the guarantor of the present invention
Scope is protected, these effects and practical applicability for implementing all without the influence present invention.
Claims (8)
1. gas pipeline pressurize pressure relief device, it is characterized in that, including closing pond body on the ground, the closed cell side are set
Wall, which runs through, is provided with air inlet pipe, the inside of the closing pond body be provided with inflatable soft bag, the air inlet pipe insertion soft bag and
It is tightly connected with soft bag；The upper bag wall of the soft bag is provided with check valve, and the upper wall of the closing pond body, which runs through to be provided with, can be inserted into simultaneously
The relief tube of open check valve.
2. gas pipeline pressurize pressure relief device according to claim 1, it is characterized in that, the upper wall of the closing pond body is also passed through
Be equipped with overflow pipe, the overflow pipe be provided with the water inlet connected with closing pond body, the overflow pipe be hinged with close into
The unidirectional baffle plate at the mouth of a river；The upper bag wall of the soft bag is provided with the push rod that can be inserted into overflow pipe and push up opening one-way baffle plate.
3. gas pipeline pressurize pressure relief device according to claim 2, it is characterized in that, the lower end of overflow pipe is threeway section,
The water inlet is located on the horizontal detail of threeway section, and the unidirectional baffle plate is located on the perpendicular upper detail of threeway section.
4. the gas pipeline pressurize pressure relief device according to Claims 2 or 3, it is characterized in that, the bottom of the check valve is set
Put clapper, the distance between the lower surface of the relief tube and clapper be less than push rod upper surface and unidirectional baffle plate it
Between distance.
5. gas pipeline pressurize pressure relief device according to claim 4, it is characterized in that, the relief tube and overflow pipe stretch out
The openend for closing pond body is horizontally disposed with.
6. gas pipeline pressurize pressure relief device according to claim 5, it is characterized in that, the relief tube and overflow pipe are opened
The direction at mouth end is opposite.
7. gas pipeline pressurize pressure relief device according to claim 1, it is characterized in that, the bottom of the soft bag and closed cell
The bottom of body is fixedly connected.
8. gas pipeline pressurize pressure relief device according to claim 2, it is characterized in that, the upper end of the unidirectional baffle plate is fixed
Steel wire rope is connected with, overflow pipe is stretched out in the end of the steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910972.9A CN105546265B (en) | 2015-12-10 | 2015-12-10 | Gas pipeline pressurize pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510910972.9A CN105546265B (en) | 2015-12-10 | 2015-12-10 | Gas pipeline pressurize pressure relief device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105546265A CN105546265A (en) | 2016-05-04 |
| CN105546265B true CN105546265B (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510910972.9A Expired - Fee Related CN105546265B (en) | 2015-12-10 | 2015-12-10 | Gas pipeline pressurize pressure relief device |
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| Country | Link |
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| CN (1) | CN105546265B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110200484A (en) * | 2018-08-23 | 2019-09-06 | 华帝股份有限公司 | Pressure relief structure and electric steam box using same |
| CN112098101B (en) * | 2020-09-23 | 2022-07-26 | 常州大学 | Pressure relief and gas collection device for constant volume combustion bomb |
| CN113418082B (en) * | 2021-07-30 | 2022-01-28 | 江苏致乐管业科技有限公司 | Compression-resistant PVC-U pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2264288B1 (en) * | 2009-06-11 | 2011-08-03 | Thermonetics LTD. | System for efficient fluid depressurisation |
| CN203115502U (en) * | 2013-01-11 | 2013-08-07 | 淮南市宝鼎工贸有限责任公司 | Water seal type gas pressure-limiting device |
| CN203571145U (en) * | 2013-06-30 | 2014-04-30 | 金川集团股份有限公司 | Emergency pressure regulator of long-distance conveying pipeline |
| CN204187201U (en) * | 2014-10-23 | 2015-03-04 | 张兴贵 | Safety anti-explosive pipeline |
| CN204187281U (en) * | 2014-10-29 | 2015-03-04 | 刘复合 | A kind of pressure relief system for high-pressure gas long distance pipeline |
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- 2015-12-10 CN CN201510910972.9A patent/CN105546265B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN105546265A (en) | 2016-05-04 |
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