CN201964140U - Gas-collecting pipe - Google Patents

Abstract

The utility model relates to a gas-collecting pipe (32), which is a closed pipe arranged at the periphery below a covering film on the inner wall of an adjusting tank (200) and above the highest operation water level. A plurality of gas inlets (321) are arranged on the surface of the pipe facing to the inside of the adjusting tank, and a plurality of gas outlets (322) are arranged at intervals on the surface of the pipe facing to the outside of the adjusting tank, so as to collect and discharge gas generated in the adjusting tank. Further, the pipe is wrapped at intervals with a plurality of anchored film bands (34). An anchored groove (421) can be dug, concrete ballasts can be cast or clay can be filled back outside the peripheral platform (202) of the adjusting tank to perform flexible anchoring. Expansion bolts (412) can also be used to perform rigid anchoring on the peripheral platform (202) of the adjusting tank. The gas-collecting pipe cannot destroy the seepage prevention works of the inner wall of the adjusting tank, the operation is convenient and the anchoring is firm.

Description

A kind of gas collecting pipe

Technical field

The utility model relates to a kind of foul smell diffusion and dirty covering system that mixes of rain that prevents refuse landfill sewage regulating tank, particularly relates to gas drainage device wherein, especially wherein gas collecting pipe and anchor thereof.

Background technique

General large-scale household refuse landfill sites is divided into corresponding supporting zones such as office administration district, landfill reservoir area, sewage regulating tank, sewage treatment works, biogas treatment plant, machine shop, according to the provisions of the relevant regulations issued by the State, landfill reservoir area and sewage regulating tank must adopt HDPE film impervious materials such as (density polyethylene film with high) to carry out artificial antiseepage and handle.The percolate that rubbish produces in the landfill reservoir area flows to the sewage regulating tank by the leachate collection pipe, finally enters sewage treatment works, handles back up to standard discharging.The foul smell source that household refuse landfill sites produces mainly contains two-part, a part is the foul smell that rubbish exposed in the garbage loading embeading operation process of landfill reservoir area produces, another part is the foul smell that sewage produces in the sewage regulating tank, these foul smell are along with air flows has influence on landfill yard environment on every side, so must control these foul smell.Odor control generally is to adopt the cloth that keeps off the rain to cover behind landfill operation temporarily in the landfill reservoir area, perhaps adopts overburden soil to cover; The foul smell that the sewage regulating tank produces then adopts adds a cover processing, stops the foul smell diffusion, and the collection biogas of adopting an effective measure in the pond is transported to biogas treatment plant at last and handles or carry out altitude combustion.Usually the regulating tank area is big, span is big, when regulating tank is added a cover, if the lid that adopts steel structure to build, and its engineering cost height and be difficult to reach sealing effect, and also steel structure is corroded under sewage and foul smell environment for a long time easily.

Summary of the invention

The technical problems to be solved in the utility model provides a kind of flexible floating head film covering gas collecting pipe of sewage adjusting pool gas down of being convenient to collect and discharge, and simultaneously, the utility model also provides two kinds of anchors that convenience is firm for this gas collecting pipe.

For solving the problems of the technologies described above, the utility model provides a kind of gas collecting pipe, it is characterized in that, described gas collecting pipe is below regulating tank inwall floating head film, is higher than the pipeline on a trap road of the circumferential distribution of operation highest water level part, the side of described gas collecting pipe in regulating tank is provided with several for the suction port that pool gas flows into, and then is interval with a plurality of relief openings on the side outside regulating tank.

Described gas collecting pipe is that pipe diameter is Φ 110mm～Φ 200mm.

The side of described gas collecting pipe in regulating tank is provided with the suction port that many rows flow into for pool gas; Every row's adjacent suction port spacing is 200mm; Adjacent two row's suction port dislocation are arranged.

Described suction port diameter is 12～16mm.

The adjacent relief opening of the described gas collecting pipe 20～30m of being separated by.

Described gas collecting pipe is a PE material pipeline.

Wrap up many two ends on the described gas collecting pipe at interval and can be anchored at the outer anchoring film band of regulating tank.

The described anchoring film band of wide a 20～30cm of the every interval 2～3m parcel of described gas collecting pipe.

Described gas collecting pipe is provided with the flexible anchoring device, and described flexible anchoring device comprises anchoring ditch and interior concrete ballast or the backfill clay ballast of pouring into a mould of anchoring ditch that is located at outside the regulating tank outward edge platform; The anchoring film band of described gas collecting pipe stretches out regulating tank, is tiled in the described anchoring ditch, and a door word reinforcing bar passes anchoring film band and hammers in concrete or the argillic horizon, cast concrete or the clay of backfill for the second time above the anchoring film band in the anchoring ditch.

Described gas collecting pipe is provided with the rigidity anchor, and described rigidity anchor comprises steel plate, EXPANSION ANCHOR BOLTS and concrete ballast; The anchoring film band of described gas collecting pipe stretches out regulating tank, be tiled on the regulating tank outward edge platform, steel plate is pressed on the described anchoring film band, EXPANSION ANCHOR BOLTS passes steel plate and anchoring film band is squeezed in the platform, is pressed on described anchoring film band, steel plate and the EXPANSION ANCHOR BOLTS at the concrete ballast that is provided with cast on the described platform.

Gas collecting pipe of the present utility model is arranged under the floating head film, at the distribute pipeline on a trap road of regulating tank inner peripheral wall, and the side that whole circle is gone up in regulating tank is provided with the suction port that several flow into for pool gas, the gas of being convenient in the regulating tank enters the gas collecting pipe, and on the side outside regulating tank, then be interval with a plurality of relief openings, be convenient to connect outlet pipe and discharge gas.Gas collecting pipe of the present utility model utilization is wrapped in many anchoring film bands on the pipe at interval and stretches out regulating tank and carry out anchoring, can not destroy the seepage control system of regulating tank inwall, anchoring ditch flexible anchoring is taked in the place that has the position can excavate the anchoring ditch outside regulating tank, take the anchoring of EXPANSION ANCHOR BOLTS rigidity in the place that can't excavate the anchoring ditch, easy construction and anchoring are firm.

Description of drawings

Fig. 1 is a sewage regulating tank covering system floor map of the present utility model.

Fig. 2 is the generalized section of sewage regulating tank covering system when the operation lowest water level.

Fig. 3 is the generalized section of sewage regulating tank covering system when the operation highest water level.

Fig. 4 is the generalized section of sewage regulating tank covering system another slice location when the operation lowest water level.

Fig. 5 is the generalized section of sewage regulating tank covering system another slice location when the operation highest water level.

Fig. 6 is a sewage regulating tank covering system flexible anchoring device generalized section.

Fig. 7 is floating head film and rigidity anchor generalized section.

Fig. 8 is the plane distribution schematic representation of gravity pressure pipe and walkway on the floating head film.

Fig. 9 is the distribution and the annexation generalized section of gravity pressure pipe and walkway on the floating head film.

Figure 10 is the schematic top plan view that gravity pressure pipe or gravity pressure loading and floating head symphysis connect relation.

Figure 11 a is the linkage structure schematic representation of the adjacent gravity pressure pipe of two joints.

Figure 11 b is the linkage structure schematic representation that four joints intersect the gravity pressure pipe.

Figure 12 is the anchoring schematic representation of gravity pressure pipe outer end.

Figure 13 is the plane distribution schematic representation of gravity pressure pipe and water proof walkway on the floating head film.

Figure 14 is the structure schematic top plan view of ball float string devices.

Figure 15 is that ball float string devices and floating head symphysis connect and concern schematic side view.

Figure 16 is a gas collecting tube longitudinal section schematic representation.

Figure 17 is the services aperture device schematic top plan view on the floating head film.

Figure 18 is the A-A sectional view of Figure 17.

Embodiment

As shown in Figure 1, be the covering system 100 of refuse landfill sewage regulating tank of the present utility model, it comprises floating head film 10, gravity ballast 20, gas drainage device 30, anchor 40, walkway 50 or water proof walkway 60, services aperture device 70.

Shown in Fig. 1-7, floating head film 10 is the integral body that is welded by the thick two light face HDPE films of some 2.0mm that cut, the floating head film covers on entire sewage regulating tank 200 waters surface, the edge of floating head film then is anchored at outside the regulating tank by anchor 40, this floating head film is closed the oilysewage surface in the regulating tank, can with regulating tank liquid level sewage position change float, fluctuation.Floating head film 10 necessary use barrier performances of the present utility model are good, the material of ageing resistance, and floating head is used for a long time.

Shown in Fig. 1,4,5,8,13, the gravity ballast 20 of present embodiment comprises more piece gravity pressure pipe 21 and a plurality of gravity pressure loading 23 that connects by chain 22, is used for pressing the floating head film.Shown in Fig. 1,8,13, these gravity pressure pipes 21 are pressed in floating head film 10 upper surfaces, can prevent that blowing over regulating tank because of strong wind produces negative pressure, absorption floating epiphragma, thereby protection floating head film are difficult for impaired; Gravity pressure pipe among Fig. 1 is cross in the middle of distributing and being, the right and left is pair Y-shapeds, the gravity pressure pipe of Fig. 8, Figure 13 distributes and then is two Y fonts, gravity pressure pipe distribution shape is not limit, need from sewage regulating tank middle part to the edge equilibrium to disperse distribution, can balance unnecessary floating head film, floating head film surface can be extruded U-shaped groove 101 by it when water level rises, and is convenient to collect rainwater.Shown in Fig. 8, Figure 13 and Figure 11,12, described gravity pressure pipe 21 is PE plastic material pipes, the preferred Φ 250mm of pipe diameter, each joint gravity pressure length of tube is preferably 3～6 meters, in order to gain in weight, in each joint gravity pressure pipe gravel or sand are housed, seal with end cap 211 at two ends, the stainless steel chain 22 of the long 60cm that is threaded on each end cap 211.Shown in Figure 11,12, adjacent or crossing gravity pressure pipe 21 snaps together by the stainless steel chain on the approach end end cap 211 22, as shown in figure 12, gravity pressure pipe 21 nearly those end stainless steel chains of regulating pool side are through in the anchoring annulus 24, this anchoring annulus 24 is through an end of anchor bar 25 again, 25 of anchor bars are anchored at outside the regulating tank, for example are fixed on to be used in the anchoring ditch of anchoring floating head film.

The gravity pressure loading 23 of present embodiment then be by the HDPE film be welded into the film tube of diameter 300mm, filling gravel and sealing forms within it, shown in Fig. 1 and Fig. 4,5, described gravity pressure loading 23 is arranged on described regulating tank middle part, is positioned at gravity pressure pipe 21 both sides, be in order to increase the weight of regulating tank middle part ballast better like this, the state low in the middle of being more convenient for forming, that periphery is high is convenient at middle part collection rainwater and guide gas.

These gravity pressure pipes 21 and gravity pressure loading 23 all are fixed on the floating head film 10, fixing mode such as Fig. 9, shown in Figure 10: will lay 2mm is thick on the floating head film place pad of gravity pressure pipe 21 and gravity pressure loading 23 HDPE film as filling up film 24 earlier, the pad film is fixed on floating head film 10 upper surfaces with extruding welding (weld seam of every spacing 2m weldering), then gravity pressure pipe 21 and gravity pressure loading 23 is placed on the pad film; Every interval 1m bundlees the film bar 25 that 20cm is wide in gravity pressure pipe 21 and gravity pressure loading 23 again, and every film bar two ends are welded on the described pad film 24, thereby gravity pressure pipe 21 and gravity pressure loading 23 are fixed on the floating head film.Pad film 24 between gravity pressure pipe and gravity pressure loading and floating head film 10, reduces the wearing and tearing to the floating head film at interval.

Shown in Fig. 1-5, described gas drainage device 30 comprises ball float string devices 31 and gas collecting pipe 32, outlet pipe 33.As shown in Figure 1, above-mentioned gravity pressure pipe 21 is when pushing down floating head film 10, the equilibrium of sewage regulating tank is divided into a plurality of zones, a plurality of ball float string devices 31 that floating head film 10 lower surfaces in each described zone are connecting side by side at interval, and for example shown in Fig. 2～3,4～5, described ball float string devices at interval between described floating head film 10 and the sewage water surface, form the gas channel that leads to the regulating tank edge, airflow direction sensing regulating tank edge.Shown in Figure 14,15, each described ball float string devices 31 comprises a plurality of ball floats 311 on the HDPE film film band 313 that is connected a wide 500mm about two row interval 200mm, side by side, and described film band 313 is welded on described floating head film 10 lower surfaces.Concrete annexation as shown in figure 15, each described ball float 311 is preferably one-body molded by ABS plastic, is made up of the spheroid 3111 of Φ 250mm and two lugs 3112 that are erected on the spheroid, each lug is provided with lacing hole 3113; Per two side by side the inboard adjacent lugs 3112 of ball float 311 pass lacing hole 3113 with short string ball film bar 312 (HDPE membrane material) and link together, simultaneously, all short string ball film bar 312 cross-under are on the film band 313 above the ball float; For more stable, 3112 of the lugs in each row ball float outside are serially connected jointly with a long string ball film bar 314 (HDPE membrane material), long string ball film bar 314 whenever passes a ball float and makes a call to one to the spacing knot of ball float, on each row ball float string, two adjacent ball float spacings of front and back are approximately 50cm.So just each ball float string devices 31 has been connected floating head film lower surface, and contiguous that terminal membrane band 313 of regulating pool walls of each described ball float string devices 31 is anchored at outside the regulating tank with the edge of described floating head film 10.

Regulating tank 200 is by 10 sealings of floating head film, the gas (biogas) that produces in it can freely not diffuse to the external world, need to collect and discharge these gas, for this reason, at regulating tank 200 inwall floating head films below 10, the periphery that is higher than operation highest water level part is provided with the gas collecting pipe 32 on a trap road, as Fig. 1,4, shown in 5, and consult 16, these gas collecting pipe 32 preferred lightweights; thin-walled; pipe diameter is that the PE material pipeline welding of Φ 110mm～Φ 200mm forms; for collecting biogas; being drilled with several on the side of this gas collecting pipe in regulating tank is the suction port 321 of 12～16mm for the diameter that pool gas flows into; suction port is many rows; can be 5-7 row; adjacent two row's suction port dislocation are arranged, and in each row's suction port, adjacent suction port spacing is approximately 200mm.In order to discharge biogas, described gas collecting pipe 32 then is interval with a plurality of relief openings (not shown among Figure 16, the regulating tank periphery is provided with 11 relief openings altogether among Fig. 1) on the side outside regulating tank, the adjacent relief opening 20～30m of being separated by.Described outlet pipe 33 is set outside regulating tank, same preferred bore Φ 200mmPE pipe, the utility model preferably distributes outlet pipe one circle, corresponding with the gas collecting pipe (as shown in Figure 1) outside described regulating tank, connect right-angle tee on each relief opening of described gas collecting pipe 32, right-angle tee interface up is connected with outlet pipe 33, be communicated to follow-up gas treatment equipment by outlet pipe again, such as firing unit or biogas processing equipment etc.The floating head film place welded seal that three-way pipe passes with it is in order to avoid gas leakage.Because gas collecting pipe 32 is suspended in the regulating tank inwall, need anchoring, 1 wide 20～30cm of parcel about every interval 2～3m on the gas collecting pipe, with the anchoring film band 34 of floating head film 10 with material, described anchoring film band 34 two ends are anchored at outside the regulating tank by anchor 40 with described floating head film 10 edges, see also Fig. 6.

The adoptable anchor 40 of the utility model has two kinds of forms, the one, rigidity anchoring, the 2nd, flexible anchoring.Be the flexible anchoring of floating head film 10 and gas collecting pipe 32 as shown in Figure 6, described flexible anchoring device 42 is to offer a closed circuit anchoring ditch 421 outside the outward edge platform 202 of regulating tank 200, cast concrete ballast or backfill clay ballast 422 in the anchoring ditch; Regulating tank is stretched out to anchoring ditch 421 in anchoring film band 34 two ends of described gas collecting pipe 32, adopts the door word reinforcing bar 420 of Φ 16 to pass anchoring film band, hammer in concrete or the argillic horizon; The edge of floating head film 10 stretches out regulating tank 200, is tiled in the anchoring ditch, is positioned at described anchoring film band top, cast concrete or the clay of backfill for the second time ballast 423 on the floating head film in the anchoring ditch, thus gas collecting pipe 32 and 10 anchorings of floating head film are got up.Consult Figure 12, described gravity pressure pipe 21 nearly those end stainless steel chains 22 of regulating pool side also can be anchored in this anchoring ditch by anchor bar 25.And each described ball float string devices 31 contiguous film band 313 of regulating that end of pool wall can be anchored in this anchoring ditch with described floating head film 10 edges equally, repeats no more.Be the rigidity anchoring of floating head film as shown in Figure 7, this rigidity anchor 41 comprises steel plate 411, EXPANSION ANCHOR BOLTS 412 and concrete ballast 413, described floating head film 10 edges stretch out regulating tank 200, are tiled on the regulating tank outward edge platform 202, the some of optional 30 * 3mm of steel plate, be pressed in described floating head film upper surface, EXPANSION ANCHOR BOLTS 412 is passed steel plate 411 and floating head film 10, is squeezed in the platform 202, be pressed on described floating head film, steel plate and the EXPANSION ANCHOR BOLTS at integrated poured concrete ballast 413 on the platform, so just the anchoring of floating head film got up.Same, gas collecting pipe, all available such rigidity anchor anchoring of ball float string devices are got up, and repeat no more.Above-mentioned two kinds of anchor types all can be realized the fixing and sealing of device such as floating head film, and the gas that sewage produces in the regulating tank can't penetrate the environment of floating head film around freely evaporateing into, and air can not enter under the floating head film yet, and rainwater can not flow in the regulating tank.

Shown in Fig. 1-3, Fig. 8-9,, the walkway is set for ease of floating head film system is overhauled.Walkway 50 is arranged on described gravity pressure pipe 21 both sides, the walkway of both sides is apart greater than 7m, be 7m～(operation highest water level-operation lowest water level) * 2m at a distance of scope preferably, every walkway is made up of some interval 60cm, the pedal 51 that is fixed on floating head film 10 upper surfaces; Each pedal 51 all is to overlay on foam plate by the thick exasperate HDPE film fixed packet of 1.5mm (400 * 200 * 1000mm) outer making, the HDPE film of exasperate are welded on that floating head film 10 upper surfaces are fixing to get final product.This walkway is because of there being at interval the water that can not isolate the both sides, walkway between marking time.

In order to isolate the water of both sides, walkway, the utility model is as shown in figure 13 water proof walkway 60 preferably.Water proof walkway 60 is arranged on gravity pressure pipe 21 both sides equally, apart greater than 7m, be 7m～(operation highest water level-operation lowest water level) * 2m preferably at a distance of scope, this water proof walkway overlays on foam plate 62 (1000 * 400 * 200mm) outer making by the thick exasperate HDPE film fixed packet of 1.5mm equally, exasperate HDPE film is welded on described floating head film upper surface and fixes, different is that this walkway is continuous shape, uninterruptedly, can be with the liquid barrier of both sides, be not communicated with mutually, floating head film when place, gravity pressure pipe place leaks, sewage can be blocked between the walkway, can not enter all the other zones of floating head face and cause the dirty mixing of rain.

For the ease of to desilting in the regulating tank, as shown in Figure 1, three services aperture devices 70 have also distributed on the floating head film.Its concrete structure is shown in Figure 17,18, and each described services aperture device 70 comprises high 71,4 dunnages 75 that are square and are distributed in the plastic tube periphery of cylindrical shape DN630PE plastic tube about mouthful one section 200mm that erects up; What the upper orifice of described PE plastic tube 71 was coated with the HDPE membrane material seals film 72, and outside sealing film, be stamped the thick HDPE film dome cap 73 of 2mm in the upper orifice of PE plastic tube, be provided with band iron hoop 74 in described dome cap 73 peripheries and carry out fastening and sealing; Every described dunnage 75 forms with the foam plate that the thick exasperate HDPE film of 1.5mm wraps up 400 * 1000 * 200mm, the HDPE film of dunnage lower surface is welded on the upper surface of floating head film 10, and the HDPE film of support plate upper surface then welds together with the described film 72 outer rim lower surfaces that seal.This services aperture device 70 is in sealing state when flat, opens services aperture when needing desilting, and sewage can not flow out.

In addition, covering system 100 of the present utility model also comprises imports sewage supplying tube in the regulating tank and sewage output tube (not shown) under the floating head film with percolate, can select the PE material pipeline of bore Φ 200-400mm, the antiseepage film part that pipeline passes the regulating tank dam body needs welded seal.

Claims (10)

1. a gas collecting pipe (32), it is characterized in that, described gas collecting pipe (32) is below regulating tank (200) inwall floating head film, is higher than the pipeline on a trap road of the circumferential distribution of operation highest water level part, the side of described gas collecting pipe in regulating tank is provided with several for the suction port (321) that pool gas flows into, and then is interval with a plurality of relief openings (322) on the side outside regulating tank.

2. gas collecting pipe according to claim 1 (32) is characterized in that, described gas collecting pipe (32) is that pipe diameter is Φ 110mm～Φ 200mm.

3. gas collecting pipe according to claim 2 (32) is characterized in that, the side of described gas collecting pipe (32) in regulating tank is provided with the suction port (321) that many rows flow into for pool gas; Every row's adjacent suction port spacing is 200mm; Adjacent two row's suction port dislocation are arranged.

4. gas collecting pipe according to claim 1 (32) is characterized in that, described suction port (321) diameter is 12～16mm.

5. gas collecting pipe according to claim 1 (32) is characterized in that, the adjacent relief opening of described gas collecting pipe (32) 20～30m of being separated by.

6. gas collecting pipe according to claim 1 (32) is characterized in that, described gas collecting pipe (32) is a PE material pipeline.

7. gas collecting pipe according to claim 1 (32) is characterized in that, described gas collecting pipe (32) upward wraps up many two ends at interval can be anchored at the outer anchoring film band (34) of regulating tank.

8. gas collecting pipe according to claim 1 (32) is characterized in that, the described anchoring film band (34) of wide a 20～30cm of the every interval 2～3m parcel of described gas collecting pipe (32).

9. claim 7 or 8 described gas collecting pipes (32), it is characterized in that, it is provided with flexible anchoring device (42), and described flexible anchoring device (42) comprises anchoring ditch (421) and interior concrete ballast or the backfill clay ballast of pouring into a mould (422) of anchoring ditch that is located at outside the regulating tank outward edge platform (202); The anchoring film band (34) of described gas collecting pipe (32) stretches out regulating tank, be tiled in the described anchoring ditch, door word reinforcing bar (420) passes anchoring film band (34) and hammers in concrete or the argillic horizon, anchoring film band (34) top cast concrete or backfill clay (423) for the second time in the anchoring ditch.

10. claim 7 or 8 described gas collecting pipes (32) is characterized in that it is provided with rigidity anchor (41), and described rigidity anchor (41) comprises steel plate (411), EXPANSION ANCHOR BOLTS (412) and concrete ballast (413); The anchoring film band (34) of described gas collecting pipe (32) stretches out regulating tank, be tiled on the regulating tank outward edge platform (202), steel plate (411) is pressed on the described anchoring film band (34), EXPANSION ANCHOR BOLTS (412) passes steel plate and anchoring film band (34) is squeezed in the platform (202), is pressed on described anchoring film band (34), steel plate and the EXPANSION ANCHOR BOLTS at the concrete ballast (413) that is provided with cast on the described platform.

Images