CN201785384U - Deflection tunnel type methane tank - Google Patents

Deflection tunnel type methane tank Download PDF

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Publication number
CN201785384U
CN201785384U CN2009202650070U CN200920265007U CN201785384U CN 201785384 U CN201785384 U CN 201785384U CN 2009202650070 U CN2009202650070 U CN 2009202650070U CN 200920265007 U CN200920265007 U CN 200920265007U CN 201785384 U CN201785384 U CN 201785384U
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China
Prior art keywords
methane
water
generating pit
baffling
methane tank
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Expired - Fee Related
Application number
CN2009202650070U
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Chinese (zh)
Inventor
高云超
张惠娜
丘银清
徐玉娟
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Agricultural Biotechnology Research Institute Guangdong Academy Of Agricultural Sciences
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Agricultural Biotechnology Research Institute Guangdong Academy Of Agricultural Sciences
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Priority to CN2009202650070U priority Critical patent/CN201785384U/en
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M21/00—Bioreactors or fermenters specially adapted for specific uses
    • C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M23/00—Constructional details, e.g. recesses, hinges
    • C12M23/02—Form or structure of the vessel
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
    • C12M27/18—Flow directing inserts
    • C12M27/20—Baffles; Ribs; Ribbons; Auger vanes
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
    • C12M29/26—Conditioning fluids entering or exiting the reaction vessel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The utility model discloses a deflection tunnel type methane tank, and aims to provide a deflection tunnel type methane tank which is simple in structure, better in gas generation effect and applicable to treating discharge of medium and small-sized organic wastewater. The cross section of a methane tank body consists of an upper convex portion, a lower concave portion and a middle cylindrical structure, and the methane tank is totally formed by a cuboid sealing water tank. A water inlet is arranged at the front of the methane tank, and treated water enters a water outlet and a water outlet channel at the rear along certain slope, thereby forming a tunnel. The bottom and the wall of the methane tank are provided with deflection guide walls for upper deflection water gaps and lower deflection water gaps which are in staggered arrangement. A water pressure channel is arranged at the top of the methane tank and communicated with the methane tank via a top water return hole, thereby forming the deflection tunnel type methane tank so as to strengthen waterpower flowing range and mixing. The deflection tunnel type methane tank resolves the problem that existing household methane tanks are large in excavation pits and immature in technology after being enlarged, and is convenient in construction.

Description

Baffling type tunnel type methane pond
Technical field
The present invention relates to the device that a kind of organic waste water anaerobically fermenting prepares biogas, particularly a kind of baffling type tunnel type methane pond.
Background technology
Along with China's growth in the living standard; people are increasing to the needs of animal product; therefore promoted Developing of Animal Industry; the quantity of the plant of different scales increases gradually; brought very big pressure for the rural ecological environment; effective and economical processing livestock industry waste and ight soil are not only environmental protection problem; the more important thing is the reasonable conversion of the resource and the energy and utilize problem; biogas technology is a technology that can be converted into organic waste bioenergy; be an outlet that solves the source of manure shortage problem that exists in China rural area, thereby biogas occupy an important position in the rural society development.At present in China rural area, be the methane-generating pit of purpose to produce bioenergy, be called the residents methane-generating pit, using maximum is hydraulic type biomass pool, its volume is mainly 6m 3, 8m 3, 10m 3Size.The GB/T4750-1984 " rural area family expenses hydraulic type biomass pool standard collective drawings " that China Standard Press in 1984 has published State Bureau of Standardization's issue has proposed the structure of methane-generating pit, be shaped as circle or sphere, be provided with opening for feed, discharge port, sweathouse, gas tank, removable cover, airway, discharge room dual-purpose ager.China Standard Press in 2002 have published middle proposition of GB/T4750-2002 " domestic methane tank standard collective drawings " " meander cloth methane-generating pit " of national quality supervision and inspection quarantine office issue, be characterized in tilting to discharge port by opening for feed at the bottom of the pond, be provided with drapery panel in the bottom surface, pond, make fermentation raw material curved mobile, increase diffusingsurface, prolonged the running of fermentation raw material.The Qiu Ling of Xibei Univ. of Agricultural ﹠ Forest Science ﹠ Technology of scientific and technical literature press publication in 2007 has narrated " revolving-flow methane-generating pit " in " garden biogas High-efficient Production and utilization " book, be characterized in, the circular arc type flow deflector that radius-of-curvature of construction is 5D/8 on pond, the end cuts off input and output material, make the pond raw material under the guide functions of flow deflector, must could arrive the bottom of circulation tube and dreg-drawing pipe along the flow deflector turn, thereby the flow path and the residence time of pit entry fermentation raw material have been prolonged, and the Qiu Ling of Xibei Univ. of Agricultural ﹠ Forest Science ﹠ Technology has also proposed Chinese patent ZL97243731.2 " revolving-flow automated cycle methane-generating pit ", and the revolving-flow methane-generating pit has been carried out technical description.
More than the applying all of relevant methane-generating pit at peasant household, generally using maximum mainly is 10m 3Volume is with interior methane-generating pit.Seldom see the report of the relevant middle-size and small-size production and use of marsh gas at present in the scientific and technical literature that China publishes, current because the development of rural culture industry, China various places present the plant that varies in size, these plants all are important pollution sources, these waste water of culturing place discharging every day reach several tons or tens tons, and the small-sized methane pond, rural area that exploitation is suitable for is the technology and equipment of modern rural culture industry demand.
Use at the field, rural culture in the tunnel type methane pond, proves respond well sewage disposal biogas technology.Result of study according to us thinks, when the construction methane generating pit size at 20m 3When following since the residents methane-generating pit to build the pond experienced, it is foundation that the nation-building standard is arranged, residents methane-generating pit construction technique is used in suggestion.When the methane-generating pit size at 20～200m 3In the time of in the scope, tunnel type methane pond and corresponding techniques thereof are one of to select.
The inapplicable construction volume of methane-generating pit for farm household technology surpasses 20m 3Methane-generating pit, because: 1. because circular, cutting depth is big, is inconvenient to build; 2. under being the situation of sandy soil, the very shallow marshy land of ground water table and construction quality can not construct, if run into rainy season and also be to be difficult to build rainy day at all; 3. present large-scale hydraulic type biomass pool does not have the proven technique experience, if excavation is too dark, biogas air pressure is too big, and gas production rate reduces.
Summary of the invention
The purpose of this utility model is to provide a kind of and uses for middle-size and small-size organic waste water, waste discharge enterprise, is shaped as rectangular parallelepiped, a kind of baffling type tunnel type methane pond that biogas fermentation efficient is higher.
The purpose of this utility model is by providing a kind of methane-generating pit with following structure to realize.
Baffling type tunnel type methane of the present utility model pond comprises with the lower section to be formed:
Water inlet system, methane-generating pit main body and water pressure house, outlet system three parts are formed.
Water inlet system comprises water-in and water inlet pipe; Water-in is the inlet for the treatment of water, works to collect and compile treating water; Water inlet pipe is the pipeline that treating water enters methane-generating pit, and the bottom of water inlet pipe and methane-generating pit links, and forms the beginning of methane-generating pit water distribution.
The methane-generating pit main body is the tank body (Fig. 1) of closed cuboid, cross section is to be made of spill of convex in top and bottom and middle square column type structure, be the sealing pond of a cuboid on the whole, length is greater than width, the water-in in front, treating water is advanced along certain slope, between water outlet in back and water outlet, forms tunnel-like thus.In order to increase cloth current length, at the bottom of the pond and pool wall be provided with the baffling training wall at the last baffling mouth of a river of staggered opening and the baffling training wall at the following baffling mouth of a river, the baffling training wall is vertical with the methane-generating pit major axis, distance between the baffling training wall at the baffling mouth of a river is not less than the width of methane-generating pit, baffling mouth of a river A/F is approximately 1/3 of methane-generating pit width, on the baffling mouth of a river or the lower opening height be about 1/2H, the baffling training wall is staggered into arranging, it is the baffling training wall of going up the baffling mouth of a river in front, the back is with the baffling training wall at a following baffling mouth of a river, constitute the last baffling mouth of a river and the staggered general layout in the following baffling mouth of a river, thereby guaranteed all even thorough mixing of cloth.At methane-generating pit outlet 0.5 meter, front a current stabilization wall is set, to guarantee having longer time and effective anaerobic sludge to rest in the methane-generating pit.The methane-generating pit loam cake is the concrete slab of semicircle sealing, and the centre plugs a metal biogas pipe, and this metal tube has constituted the initial joint of biogas.The methane-generating pit base plate also is semicircular, is to form by two-layer concrete structure cast, and be 1～3% from water-in to the water outlet gradient, flow to outlet to guarantee mud.Manhole is not established at the methane-generating pit top.
Water pressure house is the pond that connects with the methane-generating pit main body, construction is on the methane-generating pit main body, connect with the straight wall of methane-generating pit respectively all around, that is to say, on methane-generating pit, build a pond that is higher than methane-generating pit episphere 150mm, respectively there are two row tops to return the water hole in the water pressure house inboard, are beneficial to the turnover and the air pressure adjustment of water.
Outlet system comprises: between water outlet, water outlet; Water outlet is a rectangle mouth of a river in the end setting of methane-generating pit, the utility model fixed size is high 1000mm, wide 800mm is the outlet for the treatment of water, in the central authorities of the terminal wide wall of methane-generating pit, a rectangle outlet below, going out open height can redesign according to the pressure of methane-generating pit design, and generally speaking, there is distance more than at least 1 meter on the top of water outlet apart from the methane-generating pit top cover, this air pressure that has constituted the utility model methane-generating pit is better, and guarantees the stable of biogas air pressure.Be to build outside water outlet between water outlet, length is 1～2 meter, utilizes with aftertreatment and the back that makes things convenient for treating water, and wide is that methane-generating pit is wide, plays the effect of certain water pressure house between this water outlet, but the hydraulic pressure adjusting is mainly returned water by the top.
The utility model has the advantages that:
1. be applicable to 20～200m 3The methane-generating pit construction; 2. simple in structure, the underground type building.
Description of drawings
The overall construction drawing that Fig. 1 implements for the utility model methane-generating pit;
Fig. 2 is the vertical view of the utility model methane-generating pit;
Fig. 3 is the side-view of the utility model methane-generating pit;
Fig. 4 is the baffling training wall and the layout drawing thereof at the last baffling mouth of a river of the utility model methane-generating pit;
Fig. 5 is the baffling training wall and the layout drawing thereof at the following baffling mouth of a river of the utility model methane-generating pit;
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Natural pond liquid and the natural pond slag used after the utility model methane-generating pit is handled can be used for fertilizer, breed fish or aftertreatment.Building materials adopts skeleton construction.Construction finishes needs four plain ashes and the floating sealing of cement mortar in the after-bay, re-uses water-proof material and seals.
The utility model methane-generating pit volume calculation method, establishing methane-generating pit length is L (rice), and width is W (rice), and methane-generating pit central authorities rectangle cross-sectional height is H (rice), and the episphere rise is f1, the lower semisphere rise is f2, radius-of-curvature ρ=(4f 2+ W 2)/8f, then the design variable of methane-generating pit is:
The design variable (rice) at place, water-in square section, water type tunnel type methane pond is returned on table 1 top
The upper semi-circle area be M1 (square metre)=2/3W * f1, the lower half circle area is M2=2/3W * f1, middle rectangular parallelepiped sectional area is M3=W * H, central at work cuboid cross-sectional height is 1 meter, i.e. H=1.Cumulative volume is V=(M1+M2+M3) * L, and this area is presented in last row of table 1.
The utility model biomass pool structure is seen Fig. 1～Fig. 5, among the figure, and water-in 1, water inlet pipe 2, methane-generating pit main body 3, baffling training wall 4, methane-generating pit bottom surface 5, current stabilization wall 6, water outlet 7 is between water outlet 8, water shoot 9, methane outlet pipe 10, hydraulic pressure partition 11, water hole 12 is returned, water pressure house 13, the baffling training wall 14 at the last baffling mouth of a river in the top, the last baffling mouth of a river 15, the baffling training wall 16 at the following baffling mouth of a river, the following baffling mouth of a river 17.
This shows, build one 20 cubic metres methane-generating pit and need 8 meters of 2 meters of inner widths and length, 50 cubic metres of methane-generating pits need 18 meters of 2.2 meters of inner widths and length, 100 cubic metres of methane-generating pits need 25 meters of 2.6 meters of inner widths and length, 25 meters of 2.8 meters of 150 cubic metres of needs inner widths and length, building 200 cubic metres methane-generating pit needs 3.2 meters of inner widths to get final product for 40 meters with length.The utility model is not advocated and is used the too methane-generating pit of large volume, keeps in repair and build all inconvenient like this.General 10～40 meters scopes of length of using are better interior.When needs large volume methane-generating pit, can build the use in parallel of a plurality of the utility model methane-generating pits.Application is that small-sized plant, small food source mill etc. produce the biogas use for the organic sewage emission treatment.
Water-in is a solid shape, is a rectangular tank, and the inner length and width of tank respectively are about 1 meter, and the degree of depth is unfixing, is generally 0.5 meter degree of depth.It under the water-in water inlet pipe, it is a cement pipe that internal diameter is 0.3m, connect water-in and methane-generating pit bottom, water inlet pipe is installed in the methane-generating pit bottom, far away as far as possible apart from first baffling training wall opening, that is to say that the feed-water end of water inlet pipe is in a side of methane-generating pit, be a end, can prolong current length like this or increase hydraulic detention time near first training wall sealing.The water-in surface is an opening, and all the other all seal, and the junction sealing of water inlet pipe and water-in and methane-generating pit will be got well, and does not leak.The distance of water-in and methane-generating pit is indefinite, decide according to water inlet pipe length, building the high angle of use water inlet pipe and biogas pool wall is 30～40 °, if whole methane-generating pit height is (H+f1+f2), the distance of the initiating terminal of water-in and biogas pool wall is (H+f1+f2) distance of 0.5 times, the length of water inlet cement pipe is approximately (H+f1+f2-0.5) highly, because the height of water-in also has 0.5 meter, guarantees that so the high angle of water inlet pipe and biogas pool wall is 30～40 °.Water inlet pipe is arranged on the centre of water-in.Water-in uses brick mix structure or plain concrete structure building all can because hydraulic pressure bears not quite.
The methane-generating pit main body is the cement pit of a rectangular build, but cross section is convex above one and following spill, whole is the tank body of the cuboid of closure, in order to increase cloth current length, be provided with the baffling training wall, distance between the baffling training wall is not less than the width of methane-generating pit, baffling training wall A/F is about 1/3 of methane-generating pit width, baffling training wall opening is divided into the baffling mouth of a river and the following baffling mouth of a river, the height at the last baffling mouth of a river or the following baffling mouth of a river is 1/2H, the last baffling mouth of a river of two baffling training walls and the following baffling mouth of a river are staggered, it is the baffling training wall of going up the baffling mouth of a river in front, the back has constituted the last baffling mouth of a river and the staggered general layout in the following baffling mouth of a river, thereby has guaranteed all even thorough mixing of cloth (Fig. 2) with the baffling training wall at a following baffling mouth of a river.Baffling training wall quantity is indefinite, decides according to the water quality situation, if the good training wall quantity of water quality solubility can be many; If handle the high excrement dirts of SS content such as ight soil, training wall quantity benefit is few, in order to avoid result in blockage and precipitate, also can use the baffling training wall less in this case as far as possible.Baffling training wall design height generally is equal to the height of cuboid cross section in the methane-generating pit cross section, both H+f2, too high obstruction air chamber, the too low cloth that is unfavorable for, preferably highly identical with H, and the height at the last baffling mouth of a river or the following baffling mouth of a river is 1/2 times of H height (Fig. 4 and Fig. 5).At methane-generating pit outlet 0.5 meter, front a current stabilization wall is set, to guarantee having longer time and effective anaerobic sludge to rest in the methane-generating pit.Current stabilization wall height is 0.5 meter, and length is 2 times of 1/3～water outlet width of methane-generating pit width.Cover plate is the concrete structure of sealing about the methane-generating pit, in the middle of the loam cake convex metal biogas pipe is arranged, and this metal tube has constituted the initial joint of biogas.The methane-generating pit base plate is two-layer concrete structure, and the gradient is 1～3%, flows to outlet to guarantee mud.The loam cake at methane-generating pit top generally is not provided with manhole.
Water pressure house is to build on the main body methane-generating pit, the pond that connects with the methane-generating pit main body connects with the straight wall of methane-generating pit respectively all around, that is to say, on methane-generating pit, build a pond that is higher than methane-generating pit episphere convex position 150mm, be beneficial to the biogas air pressure adjustment.
Respectively have two row tops to return the water hole in the water pressure house inboard, every row returns 3 in water hole in the top, and totally 6, water hole internal diameter 110mm (Φ 110) is returned on the top, and length 650mm apart from methane-generating pit bottom surface 500mm, is the PVC water shoot of thickening, helps the adjusting of hydraulic pressure like this.
Water outlet is at a rectangle mouth of a river of the end setting of methane-generating pit, is positioned at methane-generating pit rear wall central authorities, is the outlet for the treatment of water, below the central authorities of methane-generating pit rear wall end, is a rectangle outlet, and exporting wide is about 0.8 meter, and height is generally 1 meter.Top return pipe and water outlet will be on sustained heights, and it highly also can decide according to the pressure of methane-generating pit design, and generally speaking, there is distance more than at least 1 meter on the top of water outlet apart from the methane-generating pit top cover, can guarantee stablizing of biogas air pressure like this.Be between water outlet outside the water outlet, the function between water outlet mainly is that the water intaking of methane-generating pit convenient post-treatment utilizes, and wide between water outlet is the methane-generating pit width, it is between 2 meters the interim water storage of rectangular parallelepiped that length the utility model proposes, also have the water pressure house function, when Continuous Wastewater Treatment, after pick out waterpipe.If directly utilize natural pond liquid and natural pond slag to make fertilizer, then can directly use.

Claims (1)

1. baffling type tunnel type methane pond, the methane-generating pit body cross-section is to be made of spill of convex in top and bottom and middle square column type structure, the sealing pond that is a cuboid is on the whole formed, length is greater than width, the water-in in front, treating water is advanced along certain slope, between a next water outlet and water outlet, form tunnel-like thus, it is characterized in that: at the bottom of the pond and pool wall be provided with the baffling training wall at the last baffling mouth of a river of staggered opening and the baffling training wall at the following baffling mouth of a river, the baffling training wall is vertical with the methane-generating pit major axis, the last baffling mouth of a river of baffling training wall and following baffling mouth of a river width are 1/3 of methane-generating pit width, highly are about 1/2 of main body square column type cross section H, and baffling training wall spacing is greater than the methane-generating pit width, water pressure house is arranged on the methane-generating pit top, returns the water hole by the top and communicates with methane-generating pit.
CN2009202650070U 2009-12-11 2009-12-11 Deflection tunnel type methane tank Expired - Fee Related CN201785384U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104099242A (en) * 2013-04-08 2014-10-15 罗利民 Trapezoid flow production of biogas
CN104804979A (en) * 2014-01-23 2015-07-29 安徽阜阳永志环能工程有限公司 Tunnel-type three-stage anaerobic apparatus
CN105062870A (en) * 2015-08-07 2015-11-18 无锡市悦丰化工有限公司 Rural biogas tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104099242A (en) * 2013-04-08 2014-10-15 罗利民 Trapezoid flow production of biogas
CN104804979A (en) * 2014-01-23 2015-07-29 安徽阜阳永志环能工程有限公司 Tunnel-type three-stage anaerobic apparatus
CN105062870A (en) * 2015-08-07 2015-11-18 无锡市悦丰化工有限公司 Rural biogas tank

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Granted publication date: 20110406

Termination date: 20111211