CN205974502U - Tectorial membrane methane -generating pit - Google Patents

Abstract

The utility model discloses a tectorial membrane methane -generating pit, its technical scheme main points are including the geomembrane that is used for loading the anaerobism pond and the sealed anaerobism pond of wastes material, and the geomembrane upper surface is equipped with the water proof membrane, and water proof membrane edge bonds with the geomembrane, form the reservoir bed between water proof membrane and the geomembrane, and the reservoir bed is opened has water inlet and the water supply exhaust delivery port that supplies water and get into, has reached the effect that prevents the geomembrane and blown afloat.

Description

Overlay film methane-generating pit

Technical field

This utility model is related to a kind of biogas engineering, particularly to a kind of overlay film methane-generating pit.

Background technology

Biogas be organic substance in anaerobic environment, under conditions of certain temperature, humidity, acid-base value, by micro- life Thing Fermentation, a kind of fuel gas of generation.And marsh gas fermentation process refers under anaerobic, by the micro- life of biogas fermentation The activity of thing, processes the technology of debirs, waste water etc. Biogas, also referred to as anaerobic digestion process.In the last few years, due to Develop the needs of the renewable material energy and environmental conservation, biogas is being subject to the pro-gaze in more and more fields.

Existing overlay film methane-generating pit refers to the Chinese patent of Application No. 201320431564.1, it discloses a kind of rubbish The collection system of rubbish category sludge gas, it discloses a kind of collection system of garbage category sludge gas, including a plurality of horizontal direction The collecting methane supervisor of the high density polyethylene (HDPE) perforated pipe laid and vertical direction laying, perforated pipe is laid in garbage loading embeading heap body In the groove that top is excavated, and it is communicated to collecting methane supervisor bottom, garbage loading embeading heap body top is coated with high density polyethylene (HDPE) Geomembrane, collecting methane supervisor be connected through geomembrane and with outside biogas utilization equipment.

But because methane-generating pit is in outdoor, when running into strong wind weather, thin film be subject to that area is big and unit area in weight Relatively light, so geomembrane is easily blown afloat, affect the sealing to methane-generating pit for the geomembrane.

Utility model content

The purpose of this utility model is to provide a kind of overlay film methane-generating pit preventing geomembrane from being blown afloat.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of overlay film methane-generating pit, including for loading the anaerobic pond of waste and the geomembrane of sealing anaerobic pond, geomembrane Upper surface is provided with water-separating film, and water proof film edge is bonding with geomembrane, forms reservoir bed between water-separating film and geomembrane, and reservoir bed is opened There are the supply water water inlet entering and the outlet discharged that supplies water.

By adopting such scheme, to reservoir bed water filling and water retention is made to stay in reservoir bed using water inlet, the weight of water Increase geomembrane overall weight, then after water fills reservoir bed, block water inlet, water no longer flows and has good stablizing Property, so when strong wind comes temporarily, geomembrane is laminated on the rubbish in anaerobic pond by water storage, prevents geomembrane from being blown afloat；When need When continuing to fill up waste to anaerobic pond, geomembrane is dismantled by the first step, at this moment utilizes outlet to discharge the water of reservoir bed, Thus mitigating the weight of geomembrane, it is easy to dig geomembrane.

Preferably, anaerobic pond surrounding has catch basin, in catch basin, it is connected with the fixation that geomembrane surrounding is drawn in liquid level Part.

By adopting such scheme, in catch basin, geomembrane is flooded by liquid level, and biogas is not melted into water, so biogas is no Method is escaped from the gap of geomembrane and anaerobic pond, so improves sealing using the mode of water seal it is ensured that in biogas Anaerobic environment, improves the production efficiency of biogas.

Preferably, fastener is crotch, crotch one end has been bent to form the first mounting part, and geotechnological film edge has and supplies first The through hole of mounting part insertion.

By adopting such scheme, mutually mounted with through hole using crotch, thus ensureing that geomembrane enters in liquid level, so By the way of mounting, it is easy to release the connection of geomembrane and crotch, thus when needing to fill waste, being easy to tear geomembrane open Unload.

Preferably, being arranged with becket in through hole, becket includes clamping the two panels holding ring of geomembrane and is set in Open tubular column in through hole, open tubular column two ends are affixed with holding ring respectively, and hollow column wall is connected with holding ring inwall.

By adopting such scheme, becket, by the side wall parcel of through hole, prevents the first mounting part from grinding the side wall of through hole Damage it is ensured that geomembrane and the connection of crotch, extend the life-span of geomembrane.

Preferably, the crotch other end has been bent to form the second mounting part, catch basin ground has inserts for the second mounting part Retainer ring.

By adopting such scheme, using retainer ring, crotch is fixed in catch basin, when the rubbish in anaerobic pond is excessive When, change the longer crotch of length, prevent geomembrane to be subject to the top power of waste excessive and damaged.

Preferably, water-separating film and geomembrane upper surface form many standpipes, standpipe is arranged in a crossed manner and in infall phase Intercommunicated.

By adopting such scheme, it is easy to quickly and uniformly water filling using the standpipe being interspersed, and increases The area of water-separating film, reduces the pressure being subject in water-separating film unit area, prevents reservoir bed from filling rear hydraulic pressure excessive and lead to Water proof film rupture it is ensured that the birthday noodle of water-separating film.

Preferably, water inlet quantity is multiple and is respectively positioned on standpipe insertion catch basin side, reservoir bases are connected with Hydraulic pressure in catch basin is entered the pump of water inlet.

By adopting such scheme, fill reservoir bed using the water in catch basin, equally when needing to fill waste, again Water in standpipe is flow back in catch basin it is achieved that recycling of water, saves the energy.

Preferably, being connected with check valve between pump and standpipe.

By adopting such scheme, check valve prevents the water of reservoir bed to flow backwards it is ensured that water is in reservoir bed from water inlet Middle stop, had both protected the safety of pump, also allowed for pump constantly to reservoir bed moisturizing.

Preferably, outlet is connected with electromagnetic valve.

By adopting such scheme, using the opening and closing of solenoid valve control outlet, when needing to fill waste material, electromagnetic valve leaves Open outlet to discharge water, be easy to dismantle geomembrane；After the completion of filling, closed electromagnetic valve outlet, noted using pump Water, moves in circles.

Preferably, pump is respectively positioned on catch basin the same side.

By adopting such scheme, because pump is respectively positioned on catch basin the same side, so when dismounting geomembrane need not be by geotechnique Film is separated with the pump housing, only need to all turn down geomembrane in the side being connected with pump, be easy to the dismounting of geomembrane.

In sum, this utility model has the advantages that：Using the runny characteristic of water, inject water into reservoir bed Or discharge reservoir bed, thus changing the overall weight of geomembrane, and then when filling waste, the overall weight of mitigation geomembrane, just In dismounting geomembrane, and when filling waste and completing, the overall weight increasing geomembrane, it is ensured that geomembrane is not blown by high wind, is protected Card sealing；For the catch basin supplying water for reservoir bed, by the way of water seal, it is further ensured that sealing, thus ensureing natural pond Anaerobic environment in gas pond, the existence beneficial to microorganism and breeding, and then heightened the production efficiency of biogas.

Brief description

Fig. 1 is overlay film methane-generating pit sectional view；

Fig. 2 is overlay film biomass pool structure schematic diagram；

Fig. 3 is crotch and becket attachment structure schematic diagram.

In figure, 1, anaerobic pond；2nd, geomembrane；21st, through hole；22nd, water-separating film；221st, standpipe；3rd, catch basin；31st, fixing Ring；4th, crotch；41st, the first mounting part；42nd, the second mounting part；5th, becket；51st, open tubular column；52nd, holding ring；6th, pump；61st, single To valve；7th, enter pipe；8th, outlet pipe；81st, electromagnetic valve.

Specific embodiment

Below in conjunction with accompanying drawing, this utility model is described in further detail.Wherein identical parts identical accompanying drawing Labelling represents.It should be noted that word "front", "rear", "left", "right", "up" and "down" refer to used in describing below It is the direction in accompanying drawing, word " bottom surface " and " top surface ", " interior " and " outward " refer respectively to towards or away from particular elements geometry The direction at center.

A kind of overlay film methane-generating pit, as shown in figure 1, include the anaerobic pond 1 for loading waste and the soil covering anaerobic pond 1 Work film 2；Anaerobic pond 1 is the groove of a rectangular cross-section, and corresponding geomembrane 2 is the fine and close rectangular shaped sheet of a quality.

Wherein, in conjunction with shown in Fig. 2, dug catch basin 3 in the surrounding of anaerobic pond 1, catch basin 3 is set in outside anaerobic pond 1； In catch basin 3 bottom, multiple retainer ring 31 are installed, retainer ring 31 is evenly distributed on anaerobic pond 1 surrounding, retainer ring 31 is an edge The cylinder of semi arch bending, cylinder two ends are all imbedded in ground, thus retainer ring 31 is fixing with catch basin 3;Pacify in retainer ring 31 Equipped with crotch 4, crotch 4 two ends radially to two lateral bends, form the first mounting part 41 and the second extension from the crotch 4 forming S type Socket part 42, the second mounting part 42 hangs in retainer ring 31, and geomembrane 2 edge has the through hole for the first mounting part 41 insertion 21, thus geomembrane 2 surrounding is drawn in catch basin 3 and fixing；Catch basin 3 water-retention, the water surface did not had geomembrane 2 edge, thus Anaerobic pond 1 is sealed the anaerobic environment it is ensured that methane-generating pit.

In conjunction with shown in Fig. 3, for protecting through hole 21, becket 5 is installed in through hole 21, becket 5 includes into the sky of tubulose Stem 51 and the retainer ring 52 being located at open tubular column 51 two ends, open tubular column 51 inwall is connected with retainer ring 52 inwall, retainer ring 52 with open tubular column 51 integrally casting shaping, open tubular column 51 is set in through hole 21, and two panels retainer ring 52 clamps geomembrane 2, Thus after the first mounting part 41 is inserted from becket 5 inwall, isolated vias 21 side wall and crotch 4, prevent crotch 4 by through hole 21 Side pen abrasion.

Water-separating film 22 and geomembrane 2 upper surface form many standpipes 221, and standpipe 221 is arranged in a crossed manner and in infall It is interconnected；Standpipe 221 is formed by water-separating film 22 both sides are bonding with geomembrane 2.

Catch basin 3 bottom is provided with three pumps 6 in geomembrane 2 one end, and the outfan of pump 6 is connected with check valve 61, unidirectional Valve 61 is passed through entrance pipe 7 and is connected with the water inlet of standpipe 221；The outlet of reservoir bed is in series with electromagnetic valve 81 and passes through water outlet Pipe 8 stretches under the liquid level of catch basin 3.

General geomembrane 2 is HDPE geomembrane, has an excellent environmental stress cracking resistance, low-temperature resistance, aging resistance, resistance to Corrosive nature and anti-ultraviolet property are it is ensured that sealing to anaerobic pond 1.

It is utilized as the catch basin 3 of reservoir bed water supply, it is ensured that sealing by the way of water seal, thus ensureing in methane-generating pit Anaerobic environment, the existence beneficial to microorganism and breeding, and then heightened the production efficiency of biogas；Using the runny spy of water Property, injecting water into reservoir bed or discharge reservoir bed, thus changing the overall weight of geomembrane 2, and then when filling waste, mitigating soil The overall weight of work film 2, geomembrane 2 easy to disassemble, and when filling waste and completing, increase the overall weight of geomembrane 2 it is ensured that soil Work film 2 is not blown by high wind, is further ensured that sealing.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model Field technique personnel can make to the present embodiment after reading this specification as needed does not have the modification of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims (10)

1. a kind of overlay film methane-generating pit, including the geotechnique of the anaerobic pond (1) for loading waste and sealing anaerobic pond (1) limited block Film (2) it is characterised in that：Geomembrane (2) upper surface is provided with water-separating film (22), and water-separating film (22) edge is glued with geomembrane (2) Connect, formation reservoir bed between water-separating film (22) and geomembrane (2), reservoir bed has the supply water water inlet entering and discharge of supplying water Outlet.

2. overlay film methane-generating pit according to claim 1 it is characterised in that：Anaerobic pond (1) surrounding has catch basin (3), stores It is connected with the fixture that geomembrane (2) surrounding is drawn in liquid level in tank (3).

3. overlay film methane-generating pit according to claim 2 it is characterised in that：Fastener is crotch (4), and crotch (4) one end is curved Song is formed with the first mounting part (41), and geomembrane (2) edge has the through hole (21) inserting for the first mounting part (41).

4. overlay film methane-generating pit according to claim 3 it is characterised in that：It is arranged with becket (5), metal in through hole (21) Ring (5) includes the two panels holding ring (52) of clamping geomembrane (2) and is set in open tubular column (51) in through hole (21), open tubular column (51) two ends are affixed with holding ring (52) respectively, and open tubular column (51) inwall is connected with holding ring (52) inwall.

5. overlay film methane-generating pit according to claim 3 it is characterised in that：Crotch (4) other end has been bent to form the second extension Socket part (42), catch basin (3) ground has the retainer ring (31) inserted for the second mounting part (42).

6. overlay film methane-generating pit according to claim 2 it is characterised in that：Water-separating film (22) and geomembrane (2) upper surface shape Cheng Duogen standpipe (221), standpipe (221) is arranged in a crossed manner and is interconnected in infall.

7. overlay film methane-generating pit according to claim 6 it is characterised in that：Water inlet quantity is multiple and is respectively positioned on standpipe (221) insert catch basin (3) side, catch basin (3) bottom is connected with the pump (6) that hydraulic pressure in catch basin (3) enters water inlet.

8. overlay film methane-generating pit according to claim 7 it is characterised in that：It is connected between pump (6) and standpipe (221) Check valve (61).

9. overlay film methane-generating pit according to claim 7 it is characterised in that：Outlet is connected with electromagnetic valve (81).

10. overlay film methane-generating pit according to claim 7 it is characterised in that：Pump (6) is respectively positioned on catch basin (3) the same side.