CN104452670A - Exhaust pressure reducing valve under geomembrane - Google Patents
Exhaust pressure reducing valve under geomembrane Download PDFInfo
- Publication number
- CN104452670A CN104452670A CN201310419841.1A CN201310419841A CN104452670A CN 104452670 A CN104452670 A CN 104452670A CN 201310419841 A CN201310419841 A CN 201310419841A CN 104452670 A CN104452670 A CN 104452670A
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- layer
- geomembrane
- valve
- rigid body
- body cavity
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention relates to an exhaust pressure reducing valve under geomembrane. The valve comprises a one-way valve (1), a geomembrane (2), rigid body cavities (3), gas collection tanks (4), coarse grain sand segments (5), fine earth layers (6), a hard earth layer (7), a movable earth layer (8), a movable earth layer (9), a silt layer (10), and a water layer (11). The working principle of the invention is as follow: the valve is mainly used for anti-leakage dam bodies, the geomembrane (2) is arranged between the underwater earth layers (8) (9), and an exhaust valve is arranged in the middle of the geomembrane (2). The exhaust valve comprises the fine earth layer (6), the coarse grain sand segment (5), the gas collection tank (4), the rigid body cavity (3), the one-way valve (1), the rigid body cavity (3), the gas collection tank (4), the coarse grain sand segment (5) and the fine earth layer (6). The exhaust pressure reducing valve is mainly used for exhausting the high-pressure gas on the lower layer of the geomembrane (2) to the upper earth layer by the exhaust device.
Description
Technical field
The present invention relates to a kind of geomembrane reducing valve, specifically relates to exhaust reducing valve under a kind of geomembrane.
Background technology
In recent years, geomembrane, as a kind of novel impervious material, has been widely used in all kinds of seepage control project of water, has achieved good effect, but also exposes many problems simultaneously.The large-area laying of such as geomembrane can make gas pile up under film cannot to discharge, to a certain degree can make geomembrane explosion, being commonly called as " blowing out " when running up to.In order to avoid the generation of " blowing out " phenomenon, engineering also there are many solve scheme, wherein apply outlet valve because of its simple economy, be most widely used.
There are many scholars successively to devise exhaust plant under geomembrane for this reason, principle is wherein similar substantially, namely the component of a similar one way valve is utilized, under making film, air pressure is greater than soil pressure and hydraulic pressure on film, valve opening, and gas is discharged, air pressure reduces subsequently, valve closing, due to the application of one way valve, current can not flow into.But from the engineer applied of reality, the effect of these outlet valves is not very desirable, and geomembrane is still easy to break because of " blowing out ", and reservoir leakage does not still well solve.And wherein more crucial problem is, in the past in result of design, an outlet valve only has an air inlet, and because coating under film is fine and close, the often more difficult transfer of gas, is thus " blow out " in a place, is also difficult to gas is entered in outlet valve.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide exhaust reducing valve under a kind of geomembrane.
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
Exhaust reducing valve under geomembrane of the present invention, comprising: one way valve 1, geomembrane 2, rigid body cavity 3, gas collection cabin 4, coarse sand section 5, fine earth layer 6, hard soil layer 7, layer 8 of breaking ground, layer 9 of breaking ground, mud 10, water layer 11.
Operating principle of the present invention is as follows: the present invention is mainly used in the dam body of antiseep, is geomembrane 2 under water, lays outlet valve in the centre of geo membrane layers 2 between two soil layers 8,9.The structure composition of outlet valve is respectively fine earth layer 6, coarse sand section 5, gas collection cabin 4, rigid body cavity 3, one way valve 1, rigid body cavity 3, gas collection cabin 4, coarse sand section 5, fine earth layer 6 from top to bottom.The major function of this structure is clapped to upper strata soil layer by exhaust plant by geomembrane 3 lower floor gases at high pressure.Gas collection cabin 4 achieves the gas collection of gas and the support of exhaust plant, and coarse sand section 5 realizes the upwards dispersion of gas and exhaust passage, and fine earth layer 6 achieves the capping to sand bed, prevents the downward seepage of steam above.One way valve 1 achieves the one-way conduction of gas, and gas is got rid of from bottom to top.Rigid body cavity 3 protects one way valve 1 can not be excessive and destroyed because of being under pressure.
Compared with prior art, the invention has the beneficial effects as follows:
Outlet valve uses multiple air inlet port, can make to be arranged in the gas do not existed together and all can enter exhaust plant, fine earth layer is equipped with in gas outlet, effectively can discharge gas and stop external water stream to enter, and arranging of rigid cavity can effectively prevent entering of soil and cause outlet valve to block, exhaust efficiency under film can be strengthened on the whole, effectively reduce geomembrane and " blow out ".
Accompanying drawing explanation
Fig. 1 is exhaust reducing valve structure chart under geomembrane.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
Exhaust reducing valve under geomembrane of the present invention, comprising: one way valve 1, geomembrane 2, rigid body cavity 3, gas collection cabin 4, coarse sand section 5, fine earth layer 6, hard soil layer 7, layer 8 of breaking ground, layer 9 of breaking ground, mud 10, water layer 11.
Operating principle of the present invention is as follows: the present invention is mainly used in the dam body of antiseep, is geomembrane 2 under water, lays outlet valve in the centre of geo membrane layers 2 between two soil layers 8,9.The structure composition of outlet valve is respectively fine earth layer 6, coarse sand section 5, gas collection cabin 4, rigid body cavity 3, one way valve 1, rigid body cavity 3, gas collection cabin 4, coarse sand section 5, fine earth layer 6 from top to bottom.The major function of this structure is clapped to upper strata soil layer by exhaust plant by geomembrane 3 lower floor gases at high pressure.Gas collection cabin 4 achieves the gas collection of gas and the support of exhaust plant, and coarse sand section 5 realizes the upwards dispersion of gas and exhaust passage, and fine earth layer 6 achieves the capping to sand bed, prevents the downward seepage of steam above.One way valve 1 achieves the one-way conduction of gas, and gas is got rid of from bottom to top.Rigid body cavity 3 protects one way valve 1 can not be excessive and destroyed because of being under pressure.
The undeclared part related in the present invention is same as the prior art or adopt prior art to be realized.
Claims (3)
1. exhaust reducing valve under a geomembrane, comprise: one way valve (1), geomembrane (2), rigid body cavity (3), gas collection cabin (4), coarse sand section (5), fine earth layer (6), hard soil layer (7), layer of breaking ground (8), layer of breaking ground (9), mud (10), water layer (11), is characterized in that: the structure composition of described outlet valve; Described rigid body cavity (3).
2. the structure composition of outlet valve according to claim 1, is characterized in that: the structure composition of described outlet valve is respectively fine earth layer (6), coarse sand section (5), gas collection cabin (4), rigid body cavity (3), one way valve (1), rigid body cavity (3), gas collection cabin (4), coarse sand section (5), fine earth layer (6) from top to bottom.
3. rigid body cavity (3) according to claim 1, is characterized in that: described rigid body cavity (3) protects one way valve (1) can not be excessive and destroyed because of being under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419841.1A CN104452670A (en) | 2013-09-15 | 2013-09-15 | Exhaust pressure reducing valve under geomembrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310419841.1A CN104452670A (en) | 2013-09-15 | 2013-09-15 | Exhaust pressure reducing valve under geomembrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104452670A true CN104452670A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310419841.1A Pending CN104452670A (en) | 2013-09-15 | 2013-09-15 | Exhaust pressure reducing valve under geomembrane |
Country Status (1)
| Country | Link |
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| CN (1) | CN104452670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505501A (en) * | 2018-05-31 | 2018-09-07 | 山东农业大学 | Water conservancy civil engineering single slope drainage air bleeding valve and its method for arranging |
-
2013
- 2013-09-15 CN CN201310419841.1A patent/CN104452670A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108505501A (en) * | 2018-05-31 | 2018-09-07 | 山东农业大学 | Water conservancy civil engineering single slope drainage air bleeding valve and its method for arranging |
| CN108505501B (en) * | 2018-05-31 | 2024-01-30 | 山东农业大学 | Unidirectional drainage exhaust valve for hydraulic and civil engineering and arrangement method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |