CN207552308U - A kind of rotating folding air-tightness safety marsh gas Chi Gai - Google Patents

Abstract

A kind of rotating folding air-tightness safety marsh gas Chi Gai, it is related to methane tank cover technical field of sealing technology, including Chi Gai, pond body, it is closed by Chi Gai lids to pond body, what pond covered unscrews slot for cooperating with the flange in pond body so as to reach sealing methane-generating pit, it is corresponding that pond covered unscrews the slot groove adjacent with the flange in pond body, it is in the open position, Chi Gai is rotated by the handle that pond covers, it is corresponding with the flange in pond body that pond covered unscrews slot, it is in the close position, methane-generating pit is in air-tight state, tighten fastener, methane tank gas production, air pressure is bigger, sealing ring will be compressed, make methane-generating pit sealing better；The waste of resource, the novelty simple in structure, convenient for facilitating folding methane tank cover are caused to be effectively prevented the gas of generation from the leakage of the side of methane tank cover.When air pressure is more than the design pressure in pond in methane-generating pit, pressure limiting valve opens pressure release, and pressure recovery is normal, and pressure limiting valve is closed, and ensure that methane-generating pit safety, pond body is avoided to rupture.

Description

A kind of rotating folding air-tightness safety marsh gas Chi Gai

Technical field

The utility model is related to methane tank cover technical field of sealing technology, particularly a kind of rotating folding air-tightness safety marsh gas pond In terms of lid.

Background technology

Nowadays, methane-generating pit is all had in heliogreenhouse underground and man of peasant household, methane-generating pit has concreting or one Formula biomass pool built from glass fiber reinforced plastic, is designed with methane tank cover, and methane tank cover is mounted on the top of methane-generating pit, covers the size of mouth can accommodate one A adult is advisable into and out of methane-generating pit, general a diameter of 60~70cm.Installation methane-generating pit is stamped following benefit：First, work as methane-generating pit When reloading greatly or repair internal, after opening methane tank cover, communicate with methane tank cover mouth into and out of material mouth, favorably discharged by air blast Remaining gas in pond, it is ensured that be engaged in and reload or the safety of maintenance personal.Second, when in pond zymotic fluid surface crust compared with Thickness when influencing aerogenesis, can open methane tank cover, break excrement shell, stir liquid manure, make aerogenesis normal.Third, when pool gas pressure Power is excessive, and more than the design pressure in pond, and during pressure gauge failure (such as pipeline is obstructed), biogas is just automatic by methane-generating pit cover board It is open-top, so as to reduce pool gas pressure, pond body is avoided to rupture.But current methane tank cover sealing generally takes tabia Seal the methane tank cover interstitial water encapsulating method of methane-generating pit or concreting, once water shortage will gas leakage, easily make to ferment And the biogas generated leaks, and causes the waste of the energy, methane tank cover and homemade methane tank cover at present on the market are all difficult to completely Foot requirement for a long time using meeting because of the phenomenon that abrasion cause gas leakage, be unfavorable for the fermentation gas of methane-generating pit and gas storage.For This, proposes that a kind of quick rotating folding pressurized seal, air pressure more high sealing be better, safety of the automatic exhaust decompression of air-tightness superpressure Methane tank cover.

Invention content

Solve the problems, such as that volume is to provide a kind of quick rotating folding pressurized seal, high sealing is got in air pressure in the utility model The safety marsh gas Chi Gai of the better automatic exhaust decompression of air-tightness superpressure, to solve the problems mentioned in the above background technology.

To achieve the above object, the utility model provides following technical solution：A kind of rotating folding air-tightness safety marsh gas Chi Gai, including Chi Gai（1）, pond body（4）, the Chi Gai（1）Edge array, which is provided with, unscrews slot（15）, the pond body（4）'s Oral area array is provided with and unscrews slot（15）Matched flange（42）, the Chi Gai（1）It is placed on pond body（4）On, Chi Gai（1）'s Outer edge is bent to methane tank cover mouth direction in pond body（4）Flange（42）Lower edge, which bends inwards, to be made to unscrew slot（15）Partly encase Flange（42）, pond body（4）Methane tank cover mouth upwardly extend the alternate flange of convex-concave that fold outward is formed（42）；The rotation Fluting（15）With flange（42）Sealing ring is closely fitted between the recess portion of inside（2）, unscrewing slot（15）It is close to sealing ring（2） Several protrusions are oppositely arranged at outer rim, to block sealing ring（2）.Described unscrews slot（15）Lower edge be equipped with fastener （3）, to make to unscrew slot（15）With flange（42）More closely prevention gas leakage is combined between the recess portion of inside.The fastener （3）Including fastening screw（31）, nut（32）Gasket（33）, fastening screw（31）By unscrewing slot（15）Lower edge nut （32）It screw into gasket（33）On, the Chi Gai（1）With pond body（4）Between have open position, closed position, it is described to unscrew slot （15）With flange（42）It is rotated between open position and closed position；The Chi Gai（1）It is equipped with pressure limiting valve（14）, work as natural pond Air pressure is more than the design pressure in pond, pressure limiting valve in gas pond（14）Pressure release is opened, pressure recovery is normal, pressure limiting valve（14）It closes.

Preferably, it is described to unscrew slot（15）Lower edge be equipped with fastener（3）There are four.Preferably, the Chi Gai （1）Equipped with gas-guide tube（13）And pressure limiting valve（14）.

The beneficial effects of the utility model are：Rotating folding air-tightness safety marsh gas Chi Gai is closed by Chi Gai lids to pond body, What wherein pond covered unscrews slot for cooperating to achieve the purpose that seal methane-generating pit with the flange in pond body.What pond covered It is corresponding to unscrew the slot groove adjacent with the flange in pond body, is in the open position, Chi Gai, pond are rotated by the handle that pond covers Cover to unscrew slot corresponding with the flange in pond body, in the close position, methane-generating pit is in air-tight state, tightens fastener, Methane tank gas production, air pressure is bigger, will compress sealing ring, makes methane-generating pit sealing better.Be effectively prevented the gas of generation from The side leakage of methane tank cover causes the waste of resource, the novelty simple in structure, convenient for facilitating folding methane tank cover.Work as methane-generating pit Interior air pressure is more than the design pressure in pond, and pressure limiting valve opens pressure release, and pressure recovery is normal, and pressure limiting valve is closed, and ensure that methane-generating pit Safety, avoids pond body from rupturing.

Description of the drawings

Fig. 1 is the utility model cross-sectional view of the structure；

Fig. 2 is the stereogram of the utility model；

Fig. 3 is the fastener sectional view of the utility model；

In figure：1. Chi Gai, 12. handles, 13. gas-guide tubes, 14. pressure limiting valves, 15. unscrew 2. sealing ring of slot, 3. fasteners, 31. fastening screw, 32. nuts, 33. gaskets, 4. pond bodies, 42. flanges.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

Embodiment 1 please refers to Fig.1-3, for casting concrete methane-generating pit, technical solution provided by the utility model：One Kind rotating folding air-tightness safety marsh gas Chi Gai, including Chi Gai（1）, pond body（4）On built-in fitting, the Chi Gai（1）Edge Array, which is provided with, unscrews slot（15）, the pond body（4）On the oral area array of built-in fitting be provided with and unscrew slot（15）It matches Flange（42）, the Chi Gai（1）It is placed on pond body（4）On, Chi Gai（1）Outer edge to methane tank cover mouth direction bend in pond body （4）Flange（42）Lower edge, which bends inwards, to be made to unscrew slot（15）Partly encase flange（42）, pond body（4）On built-in fitting methane-generating pit Lid mouth upwardly extends fold outward and forms the alternate flange of convex-concave（42）；Described unscrews slot（15）With flange（42）Inside it is recessed Sealing ring is closely fitted between portion（2）, unscrewing slot（15）It is close to sealing ring（2）Several protrusions are oppositely arranged at outer rim, To block sealing ring（2）.Described unscrews slot（15）Lower edge be equipped with fastener（3）, to make to unscrew slot（15）With it is convex Edge（42）More closely prevention gas leakage is combined between the recess portion of inside.The fastener（3）Including fastening screw（31）, nut （32）Gasket（33）, fastening screw（31）By unscrewing slot（15）Lower edge nut（32）It screw into gasket（33）On, institute State Chi Gai（1）With pond body（4）Between have open position, closed position, it is described to unscrew slot（15）With flange（42）In open position It puts and is rotated between closed position；The Chi Gai（1）It is equipped with pressure limiting valve（14）, when air pressure is more than setting for pond in methane-generating pit Count pressure, pressure limiting valve（14）Pressure release is opened, pressure recovery is normal, pressure limiting valve（14）It closes.

When pouring methane-generating pit, pond body（4）On built-in fitting be put into methane-generating pit cover port, after pouring, by " three ashes one After slurry " sealing, first gas-guide tube（13）Pacify to Chi Gai（1）On, sealing ring（2）Positioned on Chi Gai（1）Unscrew slot（15）, Chi Gai （1）Lid is closed to pond body（4）On, Chi Gai（1）On unscrew slot（15）With pond body（4）On flange（42）The groove on side is corresponding, At this point, being in the open position, Chi Gai is depressed（1）, pass through Chi Gai（1）On handle（12）Rotate Chi Gai（1）, Chi Gai（1）On Unscrew slot（15）With pond body（4）On flange（42）Corresponding, in the close position, methane-generating pit is in air-tight state, on tightly Firmware（3）, methane tank gas production, air pressure is bigger, will compress sealing ring（2）, make methane-generating pit sealing better.When air pressure in methane-generating pit More than the design pressure in pond, pressure limiting valve（14）Pressure release is opened, pressure recovery is normal, pressure limiting valve（14）It closes.Open Chi Gai（1） When, biogas in pond is bled off, unscrews fastener（3）, pass through Chi Gai（1）On handle（12）Rotate Chi Gai（1）, Chi Gai（1）On Unscrew slot（15）With pond body（4）On flange（42）The groove on side is corresponding, is in the open position, and opens Chi Gai（1）.

Embodiment 2 please refers to Fig.1-3, for fiberglass one-shot forming biogas generating pit, technical side provided by the utility model Case：A kind of rotating folding air-tightness safety marsh gas Chi Gai, including Chi Gai（1）, pond body（4）, the Chi Gai（1）Edge array is set It is equipped with and unscrews slot（15）, the pond body（4）Oral area array be provided with and unscrew slot（15）Matched flange（42）, the pond Lid（1）It is placed on pond body（4）On, Chi Gai（1）Outer edge to methane tank cover mouth direction bend in pond body（4）Flange（42）Lower edge Place, which bends inwards, to be made to unscrew slot（15）Partly encase flange（42）, pond body（4）Methane tank cover mouth upwardly extend outward fold formed The alternate flange of convex-concave（42）；Described unscrews slot（15）With flange（42）Sealing ring is closely fitted between the recess portion of inside （2）, unscrewing slot（15）It is close to sealing ring（2）Several protrusions are oppositely arranged at outer rim, to block sealing ring（2）.It is described Unscrew slot（15）Lower edge be equipped with fastener（3）, to make to unscrew slot（15）With flange（42）It is tied between the recess portion of inside Close more closely prevention gas leakage.The fastener（3）Including fastening screw（31）, nut（32）Gasket（33）, fastening screw （31）By unscrewing slot（15）Lower edge nut（32）It screw into gasket（33）On, the Chi Gai（1）Equipped with gas-guide tube （13）And pressure limiting valve（14）,（13）And pressure limiting valve（14）Pond body can also be mounted on（4）On, the Chi Gai（1）With pond body（4）It Between have open position, closed position, it is described to unscrew slot（15）With flange（42）It is rotated between open position and closed position； The Chi Gai（1）It is equipped with pressure limiting valve（14）, when in methane-generating pit air pressure be more than pond design pressure, pressure limiting valve（14）It opens Pressure release, pressure recovery is normal, pressure limiting valve（14）It closes.

When making methane-generating pit with fiberglass, first gas-guide tube（13）Pacify to Chi Gai（1）On, sealing ring（2）Positioned on Chi Gai（1） Unscrew slot（15）, Chi Gai（1）Lid is closed to pond body（4）On, Chi Gai（1）On unscrew slot（15）With pond body（4）On flange （42）The groove on side is corresponding, at this point, being in the open position, depresses Chi Gai（1）, pass through Chi Gai（1）On handle（12）Rotation Chi Gai（1）, Chi Gai（1）On unscrew slot（15）With pond body（4）On flange（42）It is corresponding, in the close position, methane-generating pit In air-tight state, fastener is tightened（3）, methane tank gas production, air pressure is bigger, will compress sealing ring（2）, seal methane-generating pit Better.When in methane-generating pit air pressure be more than pond design pressure, pressure limiting valve（14）Pressure release is opened, pressure recovery is normal, pressure limiting valve It closes.Open Chi Gai（1）When, biogas in pond is bled off, unscrews fastener（3）, pass through Chi Gai（1）On handle（12）Rotate Chi Gai （1）, Chi Gai（1）On unscrew slot（15）With pond body（4）On flange（42）The groove on side is corresponding, is in the open position, and beats Open Chi Gai（1）.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (7)

1. a kind of rotating folding air-tightness safety marsh gas Chi Gai, including Chi Gai（1）, pond body（4）, the Chi Gai（1）Center is set There is handle（12）, Chi Gai（1）Edge array, which is provided with, unscrews slot（15）, the pond body（4）Chi Gai（1）Oral area array is provided with With unscrewing slot（15）Matched flange（42）, the Chi Gai（1）It is placed on pond body（4）On, which is characterized in that described unscrews slot （15）It is Chi Gai（1）Outer edge to methane tank cover mouth direction bend in pond body（4）Flange（42）Lower edge, which bends inwards, to be made Unscrew slot（15）Partly encase flange（42）, the flange（42）It is pond body（4）Methane tank cover mouth edge upwardly extend outward Fold forms the alternate protrusion of convex-concave, and described unscrews slot（15）With flange（42）Sealing ring is fitted between the recess portion of inside （2）.

2. a kind of rotating folding air-tightness safety marsh gas Chi Gai according to claim 1, it is characterised in that：Described unscrews Slot（15）Lower edge be equipped with fastener（3）, fasten and unscrew slot（15）With flange（42）.

3. a kind of rotating folding air-tightness safety marsh gas Chi Gai according to claim 2, it is characterised in that：The fastening Part（3）Including fastening screw（31）, nut（32）Gasket（33）, fastening screw（31）By unscrewing slot（15）Lower edge spiral shell It is female（32）It screw into gasket（33）On.

4. a kind of rotating folding air-tightness safety marsh gas Chi Gai according to claim 1, it is characterised in that：Described unscrews Slot（15）It is close to sealing ring（2）Protrusion is oppositely arranged at outer rim, to block sealing ring（2）.

5. a kind of rotating folding air-tightness safety marsh gas Chi Gai according to claim 1, it is characterised in that：The Chi Gai （1）With pond body（4）Between have open position, closed position, it is described to unscrew slot（15）With flange（42）In open position with closing Conjunction rotates between position.

6. a kind of rotating folding air-tightness safety marsh gas Chi Gai according to claim 1, it is characterised in that：The Chi Gai （1）Equipped with gas-guide tube（13）And pressure limiting valve（14）.

7. a kind of rotating folding air-tightness safety marsh gas Chi Gai according to claim 1, it is characterised in that：In the rotation Fluting（15）Lower edge fastener（3）It is 4.