CN103003410B - Biogas system - Google Patents

Abstract

The invention relates to a biogas system comprising an elongated tank forming an elongated internal digester chamber, wherein in its longitudinal direction the tank comprises in series a front end section, multiple intermediate sections and a back section that bound the digestion chamber, wherein the front end section, the intermediate sections and the back section comprises flanges that are coupled against each other.

Description

Bionethanation system

Technical field

The present invention relates to bionethanation system.Bionethanation system comprises digestion chamber, and for holding the mixture (being called raw material) of fertilizer and other biological degradable thing, this mixture is partly dissolved in water, to produce methane gas.Methane gas may be used for family or back yard industry object.

Background technology

Known bionethanation system is built by fragment of brick and forms.Due to encapsulation methane gas must have airtight fragment of brick dome, construction site needs skilled bricklayer, even and skilled bricklayer also needs several week just can build up a bionethanation system, structure before, need heavy fragment of brick to be fed to construction site.Need for fragment of brick bionethanation system is designed in each size and each place respectively.Once in place, its size is just fixed up.

The bionethanation system that can provide in an efficient way is provided.

The object of the present invention is to provide the bionethanation system can assembled by roustabout.

The object of the present invention is to provide the bionethanation system that can easily expand.

Summary of the invention

The invention provides bionethanation system, comprise the tank of the elongation forming the internal digester chamber of extending, wherein in their longitudinal direction, this tank order comprises the fore-end crossing this digestion chamber, multiple mid portion and rear portion, and wherein fore-end, mid portion and rear portion comprise the flange coupled mutually.

Can provide as the part of separating according to bionethanation system of the present invention, described part is assembled by being coupled to each other together by flange subsequently.This can be completed by roustabout.

In one embodiment, described mid portion comprises multiple interlude, and around the longitudinal axis that they are arranged on this tank continuously, wherein at junction end place, described interlude comprises the flange coupled mutually.Described mid portion can in building site by the formation that is coupled to each other by its flange.Described interlude can be transported to assembling building site in a compact manner.

In the above-described embodiment, described tank can expand its length by providing the mid portion of necessary amount.

In one embodiment, described interlude comprises deformable sealing strip, and itself and described flange are integrally formed, and wherein said deformable bar extends from described flange slope, and its far-end is towards described digestion chamber.This deformable sealing strip is directed from flange towards digestion chamber, and adjoins the relative flange needing to couple with its far-end.Raw material in digestion chamber can pass through coupling between flange, until sealing strip, it is accumulated and be further closed and couples gap possible between flange thus.

In one embodiment, bionethanation system is included in the propagation chamber above the tank first half, and this tank first half and described digestion chamber separate and be only connected with described digestion chamber fluid via exit passageway.Propagation chamber can store sub-fraction mixture, and it discharges via exit passageway due to the generation of methane gas from digestion chamber.The methane gas of generation can remain under certain pressure by the amount of discharge section.

In one embodiment, propagation chamber, at upper side opening, thus by the level of mixture in visual attention propagation chamber, easily can obtain the level of the methane gas of generation.

In one embodiment, in the horizontal direction, the upside of opening is larger than described exit passageway.

In one embodiment, propagation chamber is crossed by the circumferential wall vertically extended from described tank.This circumferential wall can provide with needing to be assembled into together with the tank on it.

In one embodiment, described circumferential wall comprises the top edge freely extended, and it crosses the upside of the opening of described propagation chamber.

In one embodiment, described circumferential wall comprises wall section, and described wall section is coupled to each other, and the transition wherein between described wall section preferably conforms to the transition between described mid portion.Described wall section can easily be expanded together with mid portion.

In one embodiment, described tank comprises the upper wall crossing the upside of described digestion chamber and the downside of propagation chamber, and wherein said exit passageway extends downwardly in described digestion chamber from described upper wall.The downside of exit passageway determines the maximum height of the methane gas body in digestion chamber thus.Prevent too much mixture from discharging towards propagation chamber like this, also prevent the gas pressure of methane gas from exceeding the specification value of gas apparatus thus, described gas apparatus reclaims methane from digestion chamber.

In one embodiment, in vertical direction, the described flange at the junction end place of described mid portion all extend in described exit passageway bottom under, thus couple flange and flood continuously in raw material.Thus, ensure that the above-mentioned sealing function of the raw material between flange.

In one embodiment, described tank comprises the upper wall of the upside crossing described digestion chamber, and extends downwardly into the access road in described digestion chamber from described upper wall, and wherein said access road is spaced apart with described exit passageway on the longitudinal direction of described tank.Inlet makes methane gas can be enclosed in inside digestion chamber, and more raw material still can be inserted in digestion chamber simultaneously.

In one embodiment, described exit passageway separates with described propagation chamber, and wherein said exit passageway upwards extends preferably by the circumferential wall be positioned at inside described propagation chamber.

In one embodiment, in a downward direction, described access road deeper extends to the inside of described digestion chamber than described exit passageway, and methane gas unnecessary thus will only via exit passageway effusion, thus keep entrance area without methane gas.

In constructive powerful embodiment, the tank part of described centre forms the cylindrical circumferential wall of described tank.

In alternative embodiments, described tank comprises the tank first half and tank Lower Half, it has the flange of horizontal-extending, described flange is coupled to each other, wherein said tank first half order comprises sinciput section, multiple middle top section and rear top section, and it has vertically extending flange, and described flange is coupled to each other, wherein said tank Lower Half comprises continuous print front end section, section of multiple middle ends and posterior basal segment, and it has vertical extension and the flange be coupled to each other.

In one embodiment, in the middle of described, top section and section of the middle end are identically formed, and these sections can make in an efficient way thus.

In one embodiment, the continuous print that described part comprises along described flange inserts room, and the insertion room of the wherein said flange coupled is straight each other relatively to be arranged, and wherein common elastic sealing element is inserted in relative insertion room.The elastic sealing element inserted and close seals the flange coupled along length, thus makes the methane gas of mixture and generation (at least to a great extent) keep being enclosed in digestion chamber.

In one embodiment, described part is included in the wall portion between described flange, and insert section for the U-shaped sealed between described wall portion and its flange, wherein said wall portion is connected to the back side that described U-shaped inserts section, and described flange forms the continuous portion that described U-shaped inserts a leg of section.It is that the desired location sealed forms vision instruction clearly that U-shaped inserts section, thus guarantees that sealing can be placed in a desired manner.

In one embodiment, described elastic sealing element comprises the base band of elongation, and it has the sealing wing along this base band length, and the described wing extends from the side of base band.

Especially, described base band and the sealing wing are configured to the arrow outwards referred in cross-section.The expection direction of insertion of described arrow indicator seal.

In one embodiment, described flange is coupled by multiple coupling device, described coupling device distributes equably along described flange, wherein said coupling device comprises and couples pin, this couple pin there is coupling and extend from described coupling couple axle, wherein said flange comprises the hole of many group alignment, described in couple axle and insert in described hole.

In one embodiment, described coupling device comprises the wedge shape part with two wedge legs, described in holding between two wedge legs, couple axle, and wherein said wedge leg comprises the lock-in edge of a series of longitudinal axis relative to described axle inclination with coupling axle.By promoting wedge shape part towards described axle, coupling device can be tightened by making to couple axle and entering further between wedge leg.The lock-in edge of a series of inclinations against each other provides wedge shape part transverse to coupling the sliding motion of axle longitudinal direction to coupling conversion tightening motion towards wedge shape part on the longitudinal direction coupling axle.

In one embodiment, described lock-in edge barb ground is shaped, and to make described axle can be contained between described wedge leg, and stops disengaging.Like this, coupling device can by the locking phase mutual effect between lock shaft and wedge shape part once mounting.

Have protruding shape when coupling and be configured to when wedge shape part tightens towards when comparatively even shape is biased, the flange be coupled to each other can be biased towards each other.

In a preferred embodiment, described part or section or coupling device are made up of plastics (preferably HDPE).

If possible, can apply separately with shown different aspect and feature described in description.The aspect described in dependent claims of these independent aspects, especially the application and feature, can as the theme of divisional patent application.

Accompanying drawing explanation

The present invention will illustrate based on example embodiment shown in the drawings, wherein:

Fig. 1 is the isometric view according to modularization tank for sewage gas of the present invention;

Fig. 2 is the isometric view of the tank for sewage gas according to Fig. 1, and its middle and upper part is removed;

Fig. 3 is the isometric view of the tank for sewage gas according to Fig. 2, and some of them sidepiece is removed;

Figure 4 and 5 are side views of the tank for sewage gas according to Fig. 1, and it is for different example objects;

Fig. 6 is the rearview of the tank for sewage gas according to Fig. 1;

Fig. 7 A and 7B is the first cross-sectional view coupled and isometric view of tank for sewage gas position shown in Fig. 2;

Fig. 8 is the second cross-sectional view coupled of tank for sewage gas position shown in Fig. 2;

Fig. 9 A is position shown in Fig. 3, the cross-sectional view of two wall sections and sealing;

Fig. 9 B is the isometric view of the seal according to Fig. 9 A;

Figure 10 is the cross-sectional view of position shown in Fig. 2, the wall of tank for sewage gas;

Figure 11 A is the isometric view according to the second modularization tank for sewage gas of the present invention;

Figure 11 B is the exploded view of the modularization tank for sewage gas according to Figure 11 A;

Figure 12 is the longitdinal cross-section diagram of the tank for sewage gas according to Figure 11 A, and it is for different example objects;

Figure 13 is the cross-sectional view of the modularization tank for sewage gas according to XII-XII line in Figure 11 A;

Figure 14 A is the detail view of the modularization tank for sewage gas according to the round XIII in Figure 13;

Figure 14 B is the exploded view of the modularization tank for sewage gas according to Figure 14 A;

Figure 15 A is the isometric view of the 3rd coupling device for tank for sewage gas;

Figure 15 B is the exploded view coupled according to Figure 15 A;

Figure 16 is the detail view of the modularization tank for sewage gas according to the round XV in Figure 11 A;

Figure 17 is the cross-sectional view of the modularization tank for sewage gas according to XVI-XVI line in Figure 16; And

Figure 18 is the 4th isometric view coupled for the modularization tank for sewage gas of Fig. 1 or the alternative tank for sewage gas of Figure 11 A.

Detailed description of the invention

Fig. 1,4 and 6 represents according to the first modularization tank for sewage gas 1 of the present invention.The tank for sewage gas 1 extended is for digesting the mixture (being called raw material) of fertilizer and biologically degradable matter, and it is partly dissolved in water, under low pressure to produce methane.

Tank for sewage gas 1 comprises end section 40,41,42 and posterior basal segment 30, sinciput section 50, three center top in the middle of section of the front end 20, three and divides 70,71,72 and rear top section 60, and they couple along its limit, to cross airtight digestion chamber 2.Tank for sewage gas 1 be also included in two vertical sidewalls 80 in the section 50,70,71,72,60 of top, 82, vertical front wall 81 and rear vertical wall 83, to cross the propagation chamber 3 of opening, it has overfall 84 atop above digestion chamber 2.Rear top section 60 has access road 5, and it extends to the other vertical shaft 90 of propagation chamber 3.Sinciput section 50 has exit passageway 4, and it is communicated with between digestion chamber 2 and propagation chamber 3.Described section will discuss in more detail hereinafter, wherein with reference to the horizontal symmetrical face U of tank for sewage gas 1 outer shape, longitudinal vertical symmetry plane V and horizontal vertical symmetry plane W.

Section of the front end 20, posterior basal segment 30, sinciput section 50 and rear top section 60 have identical outer shape, and hereinafter with reference sinciput section 50 is described.

Sinciput section 50 comprises the top wall portion 59 being parallel to horizontal symmetrical face U and extending, the straight front wall section 51 of extending and two straight sidewall sections 53, they form box like together and strengthen structure, second subquadrate straight front wall section 52, it outwards erects from the centre of the front wall section 52 of extending, two protruding front wall section 54, it extends between square front wall section 52 and the front wall section 51 of extending, with two protruding sidewall sections 55, it is in the below of straight sidewall sections 53.

Sinciput section 50 also comprises the first flange 56, it extends in the U of horizontal symmetrical face along straight front wall section 51 and concave wall part 54,55, second flange 57, its sidewall 55 along projection and straight sidewall 53 extend, with the 3rd flange 58, it extends along straight roof 59, is both parallel to horizontal vertical symmetry plane W.

Section of the middle end 40,41,42 and middle top section 70,71,72 are of similar shape, and it describes with reference to the second top section 81 in figure 3.

Second top section 81 comprises straight rectangular top wall 73 and from roof 73 two subquadrate straight sidewalls 74 outwardly.Second top section 80 also comprises the first flange 75, and it extends along the downside of sidewall 74 in the U of horizontal symmetrical face, the second flange 76, its side along sidewall 74 extends, with the 3rd flange 77, its side along roof 73 extends, and is both parallel to horizontal vertical symmetry plane W.Along the side, short angle of roof 73, top section 81 comprises vertical insertion section 78, and vertical sidewall 80,82 is inserted into wherein.

Fig. 9 A represents the second flange 57 of section of the front end 20 and the second flange 76 of the first central bottom 40 in detail, they by the first identical coupling device 100 keep mutually against, described first coupling device illustrates in greater detail in fig. 7.Described coupling device 100 is uniformly distributed along all flanges, to keep described flange and described section over their entire lengths tightly against each other thus.

As shown in Figure 9 A, section of the front end 20 and the first section of the middle end 40 all have U-shaped section 11, and each wall portion 53,74 is connected on each flange 57,76 in the outside of tank for sewage gas 1 by it, and is connected in end flange 12 in the inner side of tank for sewage gas 1.U-shaped section 11 along flange cross elongation, continuous print insert room 10, wherein flexible elongation seal 14 is inserted into.Seal 14 before insertion is shown specifically in figures 9 b and 9.Seal 14 comprises flexible base band 15, and it has sagittate flank 16 for each insertion room 10 on the both sides of base band 15, elongated flank 17 and hollow flank 18.Base band 15 and flank 16,17,18 are extruded formed by rubber (preferably nitrile rubber (NBR)) (being total to), and form the arrowhead pointed to inserting room 10 bottom direction.

So far, the shape of each section is symmetrical about the plane of symmetry U, W, V.

First coupling device 100 is included in the circular hole 101 in the second flange 57 of section of the front end 20 and the annular projection 102 on the second flange 76 of the first section of the middle end 40, it is limited in circular hole 101 as male and female connects, impels in an extremely simple manner and keeps flange 57,76 mutually to align.Inside projection 102, have less hole 103, it has lock-in edge 104.Coupling device 100 also comprises plastic latch rationed marketing 110, and it is shown specifically in figure 7b.Stop pin 110 comprises the axle 112 of elongation and wider circular tack 111.Axle 112 comprises bevelled anterior 113, and two recesses 114 being followed by elongated hole 115 on either side, axle 112 is divided into two elasticity half portion 116 by this elongated hole, and described elasticity half portion has multiple lock-in edge 117 on outside.Lock-in edge 104,117 be designed to make stop pin 110 be inserted into comparatively in aperture 103 in the directionf after permanent locking immediately, this locking is merely able to by pushing away further in the directionf or draw fastening further.

Fig. 8 represents optional second coupling device 200.Coupling device 200 is included in the identical circular hole 101 in the second flange 57 of section of the front end 20 and the annular projection 102 on the second flange 76 of the first section of the middle end 40, it is limited in circular hole 101 as male and female connects, impels in an extremely simple manner and maintenance makes flange 57,76 mutually align.Less hole 203 is had inside projection 102.Coupling device 200 also comprises plastic latch rationed marketing 210, and it has the axle 212 of elongation and wider circular tack 211.Axle 212 comprises bevelled anterior 213, and two recesses 214 being followed by elongated hole 215 on either side, axle 212 is divided into two elasticity half portion 216 by this elongated hole, and described elasticity half portion has multiple lock-in edge 217 on outside.Second coupling device also comprises annular leaf spring or disc spring 220, and it has hole 218, and this hole has lock-in edge 204.Lock-in edge 204,217 be designed to make stop pin 210 be inserted into comparatively in aperture 103 in the directionf after permanent locking immediately, this locking is merely able to by pushing away further in the directionf or draw fastening further, such as draw side by the outer of tup 300, this tup is supported on disc spring 217, with this disc spring 220 biased.

For every section 20,30,40,41,42,50,60,70,71,72, projection 102 and hole 103 distribute along flange like this, make on vertically extending flange, hole 103 changes in projection 102, maybe when by contrary during longitudinal vertical symmetry plane V, and for horizontal-extending flange, when consideration is when the opposite side of longitudinal vertical symmetry plane V, hole 103 and projection 102 are toward each other.Like this, interlude 40,41,42,70,71,72 is all still of similar shape, and makes same interlude as shown in the Fig. 3 in any centre position for tank for sewage gas 1, A direction overturns or turns round around its vertical axis in directionb.In an identical manner, section of the front end 20 and posterior basal segment 30 are still of similar shape, with by transferring interchangeable last time around the C direction of its vertical axis shown in Fig. 3.

Sinciput section 50 also comprises rectangular outlet well 65 uniquely, its from roof 59 to downward-extension to define outlet 4.Outlet well 65 has lower outlet edge 66, and it is parallel to the first flange 56 and extends above it.Rear top section 60 comprises rectangle entrance well 67 uniquely, to define entrance 5.Entry well 67 has lower inlet edge 68, and it is parallel to the first flange 56 and extends above it.In vertical direction, lower outlet edge 68 extends to below lower inlet edge 66, exceeds about 10 centimetres.Compared with outlet edge 66, the cross section of ingress edge 68 is less, to prevent the fragment of raw material from falling in digestion chamber 2, no longer can take out at outlet 4 place.Sinciput section 50 and rear top section 60 all have vertical insertion section 91,95, and wherein vertical front wall 81 and rear vertical wall 83 are inserted into.

Section 20,30,40,41,42,50,60,70,71,72 is closed the HDPE of nitrogen by injection molding and manufactures.The cross section of wall portion is shown in Figure 10.The wall portion wherein heart surrounds nitrogen bubble, surrounds less nitrogen bubble at the both sides place at center.The solid lateral surface of wall portion does not have bubble.The bubble surrounded provides the heat insulation of digestion chamber 2.

Methanogenesis process inside digestion chamber 2 is explained with reference to figure 5 below.Digestion chamber 2 is by inserting the mixture of water and raw material via entry well 67 and filling completely, and at the highest level E place apart from dome some centimetres, this dome is formed by upper wall portion 59,73.Mixture starts to produce methane gas, and it overflows and keeps being trapped among in digestion chamber 2 from mixture, to press down the level of mixture.Floor level D is determined by the height of the lower limb 66 exporting well 65, because when level reaches lower limb 66, gas will via outlet effusion.In level decline process, the residue of mixture pushes in propagation chamber 3 via outlet 5.The quality of the mixture of discharging makes the methane gas surrounded keep under stress, and this pressure is enough to be urged by methane gas in pipe 700, and this pipe is connected on the top side of digestion chamber 2.Overfall 84 guarantees that mixture is discharged in a controlled manner when propagation chamber reaches its maximum horizontal.

The floor level D of the mixture in digestion chamber 2 occupies 75% of the total measurement (volume) of digestion chamber 2.Also namely, the cumulative volume of the methane gas of storage can be 25% of the total measurement (volume) of digestion chamber 2.Equally, the maximum volume of propagation chamber 3 is 25% of the volume of digestion chamber 2.Whole tank for sewage gas 1 can only increase in proportion by increasing or remove some identical interludes 40,70 or reduce.Like this, above-mentioned plot ratio will keep identical.For this reason, vertical sidewall 80,82 is formed by the sidewall sections be connected to each other, and this transition be connected to each other between top 50,70,71,72,60 conforms to.It is nested that interlude leading portion and back segment self can pile superimposition, makes the place that tank for sewage gas 1 can be assembled to it and use with compact packed and transported.

Figure 11 A, 11B, 12 and 13 represent according to the second modularization tank for sewage gas 301 of the present invention.Tank for sewage gas 301 assembles by each section, and its form will be described below.Section is manufactured by injection molding HDPE, has substantially invariable wall thickness on the whole at them.As shown in figure 12, section crosses digestion chamber 302 and the propagation chamber 303 of straight cylindrical, its with about Fig. 1,4 and 6 the first tank for sewage gas 1 described in part there is identical function, adopt above-mentioned identical methanogenesis process.

Described section discusses in more detail below, wherein with reference to the horizontal symmetrical face U of the profile of optional tank for sewage gas 301, longitudinal vertical symmetry plane V and horizontal vertical symmetry plane W.

Figure 11 B represents with exploded view, tank for sewage gas 301 comprises section of the semicircle front end 320 and semicircle sinciput section 350, and they form the circular front end lid 351 of digestion chamber 302 together, and semicircular rear top section 360, it forms the rounded back end lid 361 of digestion chamber 302 together, as shown in Figure 11 A.Section of the front end 320, posterior basal segment 330, sinciput section 350 and rear top section 360 are of similar shape, and it describes with reference to sinciput section 350 hereinafter.Sinciput section 350 comprises wedge shape, protruding wall portion 352, its be extended to radial strengthen rib 353, the first flange 356 in the U of horizontal symmetrical face and surfacewise 352 the second flange 357 of extending of semicircle circumference in.Sinciput section 350 has the recessed connection 354 for sewage pipe.

As shown in Figure 11 B, optional tank for sewage gas 301 has top section 370,371,372 in the middle of three the first sections of the middle end, 340,341,342, three the second sections of the middle end 343,344,345 and three.First section of the middle end 340,341,342 and second section of the middle end 343,344,345 is of similar shape, and it describes with reference to the first section of the middle end 340 above below.First section of the middle end 340 comprises arcuate wall 373, as shown in figure 13, which depict the circular cross-section of 105 degree of digestion chamber 302.First section of the middle end 340 has the first radially extending flange 375, it extends along the downside of arcuate wall 373 in longitudinal vertical symmetry plane V, second radially extending flange 376, its upside along arcuate wall 373 extends, be parallel to vertical equity plane of symmetry U, with the 3rd radially extending flange 377, its arcuate side along arcuate wall 373 extends, and is parallel to horizontal vertical symmetry plane W.In arcuate wall 373, form circumference strengthen rib 501.

As shown in Figure 11 B and 13, top section 370 in the middle of three, 371,372 eachly includes arcuate wall 502, which depict 150 degree of cross sections of cylindrical digestion chamber 302.In the middle of each, top section 370-372 has the first radially extending flange 503, its first lower end along arcuate wall 379 extends, be parallel to horizontal symmetrical face U, second radially extending flange 504, its second lower end along arcuate wall 502 extends, and is parallel to vertical equity plane of symmetry U, and the 3rd radially extending flange 505, its arcuate side along arcuate wall 502 extends, and is parallel to horizontal vertical symmetry plane W.In arcuate wall 502, form circumference strengthen rib 506.

In the middle of first, top section 371 has exit passageway 304, and it is communicated with between digestion chamber 302 and propagation chamber 303.3rd top section 373 has access road 305.As shown in the first tank for sewage gas 1, compared with exit passageway 304, access road 305 deeper extends in digestion chamber 303.

As shown in Figure 11 B, tank for sewage gas 301 comprises the vertical wall section 380 of multiple same shape.Two vertical wall sections 380 are arranged near drive end bearing bracket 351, to form vertical front wall 381.Two vertical wall sections 380 are arranged near rear end cap 361, to form rear vertical wall 383.Between vertical front wall 380 and rear vertical wall 383, six vertical wall sections 380 are arranged on every side of middle top section 370,371,372, to form two vertical sidewalls 385,386 respectively.Antetheca 381, rear wall 383 define the propagation chamber 303 of opening together with sidewall 385,386.Four vertical wall sections 380 form quadrangle peupendicular hole 390, and it vertically extends access road 305 by propagation chamber 303.Vertical wall section 380 comprises the flange along excircle, to couple described section 380 mutually.Be connected to the support lugn 378 extended from top section 370,371,372 at the flange of bottom side.When tank for sewage gas 301 is extended by extra interlude, extra vertical wall section 380 can be increased correspondingly to scale up or to extend propagation chamber 303.

As shown in FIG. 16 and 17, middle end section 340-345 and middle top section 370-372 has the U-shaped section 311 of thin-walled, and it is positioned at the transition position from arcuate wall to the 3rd flange.The open end of U-shaped section 311 is to adjacent segment, drive end bearing bracket 351 or rear end cap 361.Drive end bearing bracket 351 and rear end cap 361 have such U-shaped section 311 along its circumference.U-shaped section 311 defines elongation along flange, continuous print inserts room 310, and it keeps the seal 314 of elasticity, elongation in the assembled state, is similar to shown in Fig. 9 B such.The seal 314 extended is sealed in the vertical connection between interlude and outside between interlude and end cap 351,361.

Figure 16 represent in detail two adjacent in the middle of two the first flanges 503 of top section 371,372, in the middle of shown, top section is arranged on above two the second flanges 376 of two adjacent sections of the middle end 341,342.Flange 503,376 has hole 403 aligned with each other, thus middle top section can be held against mutually by the 3rd identical coupling device 400 with section of the middle end.Figure 14 A, 15A and 15B represent one in the 3rd coupling device 400, relate to second flange 376 of of the first section of the middle end 341 to coupling on first flange 503 of of the centre section of top 371.3rd coupling device 400 illustrates in greater detail in Figure 15 A and 15B.

3rd coupling device 400 is made of plastics, such as the plastics of HDPE or firmer, and comprises stop pin 410 and wedge shape part 430, and this wedge shape part locks onto on stop pin 410 on locking direction G.Stop pin 410 has the axle 412 of elongation, nearly rectangle, its sizing is for the hole 403 of the alignment by needing the adjacent ribs be connected to each other that is slidably matched, with the projection 411 at one end place at axle 412, its sizing is for abutting against the enhancing rib around hole 403.From the beginning, during 411 observation, axle 412 comprises leader 413, mid portion 414 and foot 415 subsequently.Narrow mid portion 414 has recessed side 418, and it is parallel to locking direction G and extends.On the direction transverse to locking direction G, the width dimensions of the gap ratio leader 413 of recessed side 418 is little.Foot 415 has the width approximate with leader 413.Leader 413 once be inserted on direction of insertion H after in hole 403, then near the inwall in hole 403, with relative to its alignment stop pin 410.Mid portion 414 extend through hole 403 with foot 415 and with 411 relative flange side pass from hole 403.

Stop pin 410 has dentation first lock-in edge 416 on the recessed side 418 of narrow mid portion 414.First lock-in edge 416 extends on the longitudinal direction of the axis of elongation 412, is parallel to direction of insertion H and transverse to locking direction G.Vertically edge 416 forming surface is to the barb of locking direction G.Foot 415 comprises dentation second lock-in edge 417, and it stretches out from two recessed sides 418.The second lock-in edge 417 subsequently in locking direction G surface thereof, facing to direction of insertion H.First lock-in edge 416 is incorporated into the second lock-in edge 417.Second lock-in edge 417 forming surface to the barb of locking direction G, and tilts facing to direction of insertion H.

Wedge shape part 430 comprises the first wedge leg 431 and the second wedge leg 432 be parallel to each other.At one end, wedge leg 431,432 is connected to each other by bridge portion 433, to form the U-shaped body 434 wherein with spatial accommodation 439, for receiving stop pin 410.In opposed facing side, wedge leg 431,432 has dentation the 3rd lock-in edge 435, and its direction of insertion H being parallel to stop pin 410 extends.3rd lock-in edge 435 formed facing to locking direction G towards barb.U-shaped body 434 have for one that needs in the flange that is connected to each other adjacent smooth top surface 436, it is facing to 411 of stop pin 410.At the side place of U-shaped body 434, this side is back to the flange needing to be connected to each other, and wedge leg 431,432 has inclined surface 437, and described inclined surface reduces gradually towards smooth top surface 436 or assembles on locking direction G.Along inclined surface 437, there is dentation the 4th lock-in edge 438, its be formed on the rightabout relative to locking direction G towards barb.

In order to couple the flange of two adjacent segment of optional tank for sewage gas 301, first stop pin 410 is inserted in an aligned hole 403 of adjacent ribs on direction of insertion H.411 are made to contact with the enhancing rib around hole 403.The mid portion 414 narrow by stop pin 410 and foot 415, its other end from hole 403 facing to 411 stretches out, and wedge shape part 430 can be placed on around stop pin 410 on locking direction G, is wedged into thus between ledge surface and foot 415.

As shown in Figure 14 A, the first lock-in edge 416 of stop pin 410 and the second lock-in edge 419 the 3rd lock-in edge 435 of reversing with wedge shape part 430 respectively and the 4th lock-in edge 438 of reversing engage.As the result of engagement, wedge shape part 430 is merely able to advance on locking direction G, and motion in the opposite direction is then stoped by the barb shape of lock-in edge 416,419,435,438.By promoting further on locking direction G or pulling wedge shape part 430, the mutual sour jujube of lock-in edge 416,419,435,438 of engagement is combined, and is wedged into further by wedge shape part 430 between the ledge surface around foot 415 and hole 403.Due to the wedge shape part shape of wedge leg 431,432, be positioned at a thickness of the wedge of 411 vertical lower 434 to increase along with the motion of wedge shape part 430 on locking direction G, on direction of insertion H, pull foot 415 further thus, and tighten coupling of the flange between 411 and foot 415.Like this, protruding 411 is biased to more smooth shape from its convex shape.

As shown in Figure 14B, the second flange 376 of section of the middle end 344 and the first flange 503 of middle top section 371 have the first deformable seal bar 510 and the second deformable seal bar 511 respectively, and it is parallel to vertical equity plane of symmetry U and extends.The surface of deformable seal bar 510,511 towards digestion chamber 302 angularly from their each flanges 376,503 is given prominence to.Tighten in process at coupling device 400, flange 376,503 is pulled towards each other, makes sealing strip 510,511 be deformed into form as shown in Figure 14 A thus.Sealing strip 510,511 forms two seals between flange 376,503, and it prevents methane gas from passing through the connection of horizontal-extending between the segments from effusion in digestion chamber 302.Level due to the raw material in digestion chamber 302 keeps enough high, forever bury in the feed to keep sealing strip 510,511, the sealing effectiveness of sealing strip 510,511 increases further, thus raw material is accumulated from the digestion chamber 302 of sealing strip 510,511.

3rd coupling device 400 is uniformly distributed along all flanges, with keep flange and thus described section lean on tightly mutually each other in their whole length.By multiple 3rd coupling device 400, first section of the middle end 340,341,342, second section of the middle end 343,344,345 and middle top section 370,371,372 assembled, to form three middle annulus sections, it is formed in the circumferential wall around cylindrical digestion chamber 302, between drive end bearing bracket 351 and rear end cap 361 successively.Vertical wall section 380 can also be connected to each other by adopting the coupling device as shown in Fig. 7 A, 7B or 8 alternatively.

Figure 18 represents the 4th, optional coupling device 600, and it can be used in the modularization tank for sewage gas of Fig. 1 or the optional tank for sewage gas of Figure 11 A, to couple any described section.4th coupling device 600 comprises plastic latch rationed marketing 610, and it has the circular shaft 612 of elongation and wider circular tack 611.Axle 612 comprises bevelled anterior 613, the blind hole 615 of extending, and axle 612 is divided into two elasticity half portion 616 by it, and it has multiple circumference lock-in edge 617 in outside.

With Fig. 1,4 and 6 the similar mode of tank for sewage gas 1, optional tank for sewage gas 301 comprises the section of many same shapes, makes it possible to any other the suitable position same section upset being used for optional tank for sewage gas 301.And can increase additional interlude to form the ring section extended, it extends digestion chamber 302 in the vertical.

Be understandable that, to comprise above-mentioned explanation be operation for the example preferred embodiment for the present invention but do not limit scope of the present invention.From above-mentioned discussion, many distortion are obvious to those skilled in the art, and it comprises within the spirit and scope of the present invention.

Claims (29)

1. bionethanation system, comprise the tank of the elongation forming elongated internal digestion chamber, it is characterized in that, in their longitudinal direction, this tank order comprises the fore-end crossing this digestion chamber, multiple mid portion and rear portion, wherein, fore-end, mid portion and rear portion comprise the flange coupled mutually, wherein said bionethanation system is also included in the propagation chamber above this tank first half, it separates with this digestion chamber, wherein said tank comprises the upper wall crossing on the upside of this digestion chamber and on the downside of propagation chamber, wherein said propagation chamber is connected with this digestion chamber's fluid via exit passageway, wherein said exit passageway extends downwardly in this digestion chamber from this upper wall.

2. bionethanation system according to claim 1, is characterized in that, described mid portion comprises multiple interlude, and around the longitudinal axis that they are arranged on this tank continuously, wherein at junction end place, described interlude comprises the flange coupled mutually.

3. bionethanation system according to claim 2, is characterized in that, described interlude comprises deformable seal bar integrally formed with described flange, and wherein said deformable seal bar extends from described flange slope, and its far-end is towards described digestion chamber.

4. bionethanation system according to claim 1, is characterized in that, described propagation chamber is at upper side opening.

5. bionethanation system according to claim 4, is characterized in that, in the horizontal direction, the upside of described opening is larger than described exit passageway.

6. bionethanation system according to claim 1, is characterized in that, described propagation chamber is crossed by the circumferential wall vertically extended from described tank.

7. the bionethanation system according to claim 4 or 6, is characterized in that, described circumferential wall comprises the top edge freely extended, and top edge crosses the upside of described propagation chamber opening.

8. bionethanation system according to claim 7, is characterized in that, described circumferential wall comprises wall section, and described wall section is coupled to each other.

9. bionethanation system according to claim 8, is characterized in that, the transition between described wall section is overlapping with the transitional face between described mid portion.

10. bionethanation system according to claim 1 and 2, is characterized in that, in vertical direction, all flanges at described mid portion junction end place extend to described exit passageway bottom under.

11. bionethanation systems according to claim 1 and 2, is characterized in that, described tank comprises the access road extended downwardly into from described upper wall in described digestion chamber, wherein on the longitudinal direction of described tank described access road and described exit passageway spaced apart.

12., according to aforementioned bionethanation system according to claim 11, is characterized in that, described access road separates with described propagation chamber.

13. bionethanation systems according to claim 12, is characterized in that, described access road is upwards extended by the circumferential wall be positioned at inside described propagation chamber.

14. bionethanation systems according to claim 11, is characterized in that, in a downward direction, described access road deeper extends to inside described digestion chamber compared with described exit passageway.

15. bionethanation systems according to claim 1 and 2, is characterized in that, described mid portion forms the cylindrical circumferential wall of described tank.

16. bionethanation systems according to claim 1, it is characterized in that, described tank comprises the tank first half and tank Lower Half, and it has the flange of horizontal-extending, and described flange is coupled to each other, wherein said tank first half order comprises sinciput section, multiple middle top section and rear top section, it has vertically extending flange, and described flange is coupled to each other, and wherein said tank Lower Half order comprises section of the front end, section of multiple middle ends and posterior basal segment, it has vertically extending flange, and described flange is coupled to each other.

17. bionethanation systems according to claim 16, is characterized in that, in the middle of described, top section and section of the middle end are identically formed.

18. bionethanation systems according to claim 1, it is characterized in that, described fore-end, mid portion and rear portion comprise the insert continually room along described flange, the wherein said insertion room coupling flange is straight each other relatively to be arranged, and wherein common elastic sealing element is inserted in relative insertion room.

19. bionethanation systems according to claim 18, it is characterized in that, described fore-end, mid portion and rear portion are included in the wall portion between described flange, and insert section for the U-shaped of sealing described between described wall portion and its flange, wherein said wall portion is connected to the back side that described U-shaped inserts section, and described flange forms the continuous portion that described U-shaped inserts a leg of section.

20. bionethanation systems according to claim 18 or 19, it is characterized in that, described elastic sealing element comprises the base band of elongation, and it has the sealing wing along this base band length, and the described wing extends from the side of base band.

21. bionethanation systems according to claim 20, is characterized in that, described base band and the sealing wing are configured to the arrowhead pointing to outside in cross-section.

22. bionethanation systems according to claim 1, it is characterized in that, described flange is coupled by multiple coupling device, described coupling device distributes equably along described flange, wherein said coupling device comprises and couples pin, this couple pin there is coupling and extend from described coupling couple axle, wherein said flange comprises the hole of aliging in groups, described in couple axle and insert in described hole.

23. bionethanation systems according to claim 22, it is characterized in that, described coupling device comprises the wedge shape part with two wedge legs, axle is coupled described in holding between two wedge legs, wherein said wedge leg and couple axle and comprise a series of lock-in edge, described lock-in edge tilts relative to the longitudinal axis of described axle.

24. bionethanation systems according to claim 23, is characterized in that, described lock-in edge barb ground is shaped, and to make described axle can be contained between described wedge leg, and stops disengaging.

25. bionethanation systems according to any one of claim 22-24, is characterized in that, described coupling has protruding shape, and are configured to and are biased towards comparatively even shape when described wedge shape part tightens.

26. bionethanation systems according to any one of claim 22-24, it is characterized in that, described coupling device is made of plastics.

27. bionethanation systems according to claim 26, is characterized in that, described coupling device is made up of HDPE.

28. bionethanation systems according to claim 1, is characterized in that, described fore-end, mid portion and rear portion are made of plastics.

29. bionethanation systems according to claim 28, is characterized in that, described fore-end, mid portion and rear portion are made up of HDPE.