CN102586086B - Methane collecting and pressurizing device and methane-generating pit adopting same - Google Patents
Methane collecting and pressurizing device and methane-generating pit adopting same Download PDFInfo
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- CN102586086B CN102586086B CN2012100674132A CN201210067413A CN102586086B CN 102586086 B CN102586086 B CN 102586086B CN 2012100674132 A CN2012100674132 A CN 2012100674132A CN 201210067413 A CN201210067413 A CN 201210067413A CN 102586086 B CN102586086 B CN 102586086B
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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
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/14—Pressurized fluid
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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
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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
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/20—Material Coatings
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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
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/38—Caps; Covers; Plugs; Pouring means
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- 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 invention discloses a methane collecting and pressurizing device and a methane-generating pit adopting the device, and belongs to the technical field of methane-generating pits. The methane collecting and pressurizing device comprises a collecting bag arranged in a closed methane-generating pit, wherein the collecting bag covers a liquid level, the opening of the collecting bag is immersed below the liquid level, and a gas guiding pipe is arranged at the top of the collecting bag. The methane-generating pit comprises a concrete foundation and a main pit fixed on the concrete foundation, wherein the top of the main pit is sealed with a protective cover, a gas overflow pipe is arranged on the protective cover, the methane collecting and pressurizing device is located in the middle of the main pit and is used for collecting methane generated by the methane-generating pit below the methane collecting and pressurizing device, and the gas guiding pipe extends out of the main pit. According to the invention, the methane collecting and pressurizing device is applied to the methane-generating pit, so that the fermentation collecting and automatic pressurizing of methane are realized; and the methane-generating pit can realize automatic collection and circular pressurizing of methane, and does not need any external machines for pressurizing, so that the structure is simplified.
Description
Technical field
The present invention relates to a kind of methane-generating pit, particularly a kind of large capacity methane tank of roof pressing type that surpasses the household biogas tankage.
Background technology
At present large, medium and small is jumbo methane-generating pit, no matter how structure, material change, generally there are anaerobic fermentation tank and gas holder to exist simultaneously, could realize the function of aerogenesis and air storage, and using the requirement that to satisfy normal use under the condition that adds air pressure.Its complex structure, floor space is large, and cost is high.
So far also do not have a kind of large, medium and small large capacity methane tank that namely surpasses the household biogas tankage, only depend on an anaerobic fermentation tank is set can realizes aerogenesis, air storage, the biogas pressure that can raise voluntarily again satisfies the normal requirement of using.
Application number is: 200920079317.3, name is called: the drift along Chinese utility model patent of methane-generating pit of biogas cover of full-automatic glass steel is housed, a kind of methane-generating pit is disclosed, by a glass fibre reinforced plastic cover that can automatic floating sinks to liquid level is set above the methane-generating pit liquid level, this methane-generating pit is used for collecting methane-generating pit by simple structure, but it is resuspended on the liquid level certainly by glass fibre reinforced plastic cover, when biogas collected in the glass fibre reinforced plastic cover is more, the lower rim of glass fibre reinforced plastic cover may surpass liquid level, so that collected biogas leaks away from the edge of glass fibre reinforced plastic cover, this sludge gas collecting device simultaneously, also be glass fibre reinforced plastic cover, only can realize the collecting action of biogas, and adopt glass reinforced plastic to make, can't monitor the situation of its collecting methane at all, be unfavorable for control.
Summary of the invention
Goal of the invention of the present invention is: for the problem of above-mentioned existence, provide a kind of simple in structure, quick for installation, easy to maintenance, with low cost, the collecting methane of convenient transportation and supercharging device and adopt the methane-generating pit of this device, this collecting methane and supercharging device are applied in the methane-generating pit, can realize fermentation collection and the Automatic-boosting of biogas, changed traditional fermentor tank and the structure of gas storage tank, can control the force value of biogas, and structure is very easy, with low cost, be fit to apply.Be provided with the methane-generating pit of this collecting methane and supercharging device, can realize that biogas collects circulation pressurization automatically, need not any exterior mechanical pressurization, by collect with supercharging device in methane-generating pit sealed structure, thereby give the biogas supercharging in the methane-generating pit, guarantee the outwards biogas pressure value of conveying, thereby simplified its structure, reduced cost, and operation is very easy.
The technical solution used in the present invention is as follows:
Collecting methane of the present invention and supercharging device, it comprises the collecting bag that is arranged in the airtight methane-generating pit, described collecting bag is covered in liquid level, and its opening is dipped in below the liquid level, is provided with airway at the top of collecting bag.
Owing to adopted said structure, collecting bag can apply in the airtight methane-generating pit, and the use of cooperation methane-generating pit, and the fermented feed liquid that is used for its below of collection reacts the biogas that produces, top at collecting bag arranges airway, the biogas of collecting can be used for discharge using.Because this collecting methane and supercharging device need to be installed in the methane-generating pit in use, be covered on the liquid level, and in conjunction with the height of the fermented feed liquid in the methane-generating pit, the height of fermented feed liquid need cover the lower rim of this collecting bag, the opening that also is collecting bag is dipped in below the liquid level, the biogas that produces after the feed liquid fermentation enters in the collecting bag, when the tolerance in the collecting bag increases, feed liquid in the collecting bag is pressed into outside the collecting bag, thereby so that liquid level rises or the collecting bag come-up, tolerance is larger, and to be pressed into the feed liquid on top of collecting bag just more, liquid level is just higher, because methane-generating pit is closed structure, thereby make the space on collecting bag top compressed, the air pressure on collecting bag top increases, thereby be applied to the surface of collecting bag, so that the gaseous tension in the collecting bag is just larger, the pressure of the difference of altitude formation of liquid level in the top liquid level that gaseous tension in the collecting bag equals collecting bag and the gas tank, thereby reach the most anticyclonic purpose of control by the poor control of liquid level, therefore this collecting methane and supercharging device are in terms of existing technologies, except collecting the biogas, can also apply in the airtight methane-generating pit by its structure, realize its automatically collection circulation pressurization.Collecting methane of the present invention and supercharging device, apply in the airtight methane-generating pit, alternative traditional one grade fermemtation pond and the function of secondary gas-holder, the automatic lifting of feed liquid, realization biogas is collected the circulation pressurization automatically, in the situation that need not the exterior mechanical pressurization, satisfying biogas carries and the air pressure requirement of using, for the member of methane-generating pit reduces half at least, therefore build pond efficient and double at least, thereby reduced production cost simultaneously.Collecting methane of the present invention and supercharging device, its mounting height can satisfy setting air pressure can guarantee that again the collecting bag upper volume is not less than the gas tank volume simultaneously, so that the biogas in the methane-generating pit collects voluntarily, and rise or descend by liquid level and forms automatically that biogas pressure rises or decline.
Collecting methane of the present invention and supercharging device, the below of described collecting bag is provided with the collecting bag bracing frame, and the collecting bag bracing frame upwards supports collecting bag formation gas tank.
Owing to adopted said structure, the collecting bag bracing frame is set below collecting bag, this collecting bag bracing frame can support collecting bag the formation gas tank, is used for collecting the biogas that its below produces.This collecting bag bracing frame mainly is that collecting bag is played a part support, can guarantee the general shape of collecting bag, and this gas tank is convex structure, being specifically as follows semisphere or hemisphere combines with cylindrical, perhaps other structure formation, so that can be used for collecting biogas in this gas tank, simultaneously in order to cooperate the use of collecting bag, this collecting bag bracing frame can be arranged in the methane-generating pit, so that the gas tank that collecting bag forms is in the fermented feed liquid of methane-generating pit, keep its basic structure formation, avoid collecting bag that larger distortion occurs in the feed liquid of methane-generating pit, the effect of biogas is collected in impact then.Because this collecting methane and supercharging device need to be installed in the methane-generating pit in use, and in conjunction with the height of the fermented feed liquid in the methane-generating pit, the height of fermented feed liquid need cover the lower rim of this collecting bag, the biogas that produces after the feed liquid fermentation enters in the gas tank of collecting bag formation, when tolerance increases, feed liquid in the gas tank is pressed into the top of gas tank, tolerance is larger, and to be pressed into the feed liquid on top of gas tank just more, liquid level is just higher, thereby make the gaseous tension in the gas tank just larger, gaseous tension with the difference of altitude of liquid level in the top liquid level of gas tank and the gas tank exist must contact, thereby so that reach the most anticyclonic purpose of control by the poor control of liquid level.
Collecting methane of the present invention and supercharging device, described collecting bag and collecting bag bracing frame are fixed on the bottom of airtight methane-generating pit by pull bar, and the opening of collecting bag and collecting bag bracing frame is dipped in below the liquid level.
Owing to adopted said structure, the bottom of collecting bag and collecting bag bracing frame is connected on the pull bar, then an other end of pull bar is connected to the bottom of methane-generating pit, and this pull bar presents shape straight up, can certainly pull bar be made bending or other structure formation according to practical situation, certainly can collecting bag and collecting bag bracing frame be connected to by pull bar sidewall or the top of methane-generating pit according to the demand of reality, only need to satisfy the middle part that collecting bag and collecting bag bracing frame is positioned at methane-generating pit, and gas tank is convex structure, being convenient to collect biogas gets final product, collecting bag and collecting bag bracing frame are positioned at the middle part of methane-generating pit, it also is the middle part that gas tank is positioned at methane-generating pit, the opening that needs to guarantee collecting bag and collecting bag bracing frame is dipped in below the liquid level, thereby be convenient to gas tank and collect the biogas that the feed liquid reaction produces in the methane-generating pit of its below, reinforced liquid level surpasses the height of the end opening of collecting bag simultaneously, the biogas that produces after the feed liquid fermentation enters in the gas tank of collecting bag formation, when tolerance increases, feed liquid in the gas tank is pressed into gas tank top, tolerance is larger, and to be pressed into the feed liquid on gas tank top just more, liquid level is just higher, thereby make the gaseous tension in the gas tank just larger, gaseous tension equals the difference of altitude of liquid level in gas tank top liquid level and the gas tank, thereby reaches the most anticyclonic purpose of control by the poor control of liquid level.
Collecting methane of the present invention and supercharging device, described gas tank are hemispherical dome structure or hemisphere and the cylindrical structure that combines.
Owing to adopted said structure, this gas tank mainly is comprised of collecting bag and collecting bag bracing frame, and the collecting bag bracing frame supports whole collecting bag and is hemispherical dome structure, perhaps the top is semisphere, hemispheric bottom is in conjunction with columniform structure, thereby so that this device can be collected the biogas of its below, and with collecting methane in this gas tank, its concrete structure can be selected according to the size of the methane-generating pit of reality.
The methane-generating pit of employing collecting methane of the present invention and supercharging device; concrete foundation and be fixed in main pond on the concrete foundation; the top seal in described main pond has protective guard; form airtight biomass pool body; at protective guard excessive tracheae is set; the opening of described collecting methane and supercharging device is dipped in below the liquid level in the main pond, and described airway passes outside the main pond.
Owing to adopted said structure; this methane-generating pit is built on the concrete foundation; therefore this main pond is fixed and is sealed on this concrete foundation; and the top seal in main pond has protective guard; form the integral type closed structure; be provided with excessive tracheae at protective guard; be used for discharging the gas in the protective guard; and protective guard plays collection residual air; prevent the effect that foul smell distributes; collecting methane and supercharging device are positioned at the middle part in main pond; be mainly used in collecting the biogas that the methane-generating pit of its below produces; and the liquid level of the feed liquid in the methane-generating pit should surpass the height of the end opening of collecting methane and supercharging device; the opening that is collecting methane and supercharging device is dipped in below the liquid level; the biogas that produces after the feed liquid fermentation enters in the gas tank of collecting bag formation; when tolerance increases; feed liquid in the gas tank is pressed into collecting bag top along gap or liquid pass hole between collecting bag and the main pond; thereby reduced the space on collecting bag top; so that its upper space pressure increases; tolerance in collecting bag is larger, and to be pressed into the feed liquid on collecting bag top just more; liquid level is just higher, thereby makes the gaseous tension in the gas tank just larger.Gaseous tension equals the pressure of the difference of altitude formation of liquid level in collecting bag top liquid level and the gas tank; thereby reach the most anticyclonic purpose of control by the poor control of liquid level; need not to arrange in addition the secondary gas-holder, overflow gas and stink of escaping in gas tank and the feed liquid enters in the protective guard harvesting and regularly emptying or utilize.Biogas in the collecting bag is delivered to the user by the airway gravity flow and is used.The methane-generating pit of employing collecting methane of the present invention and supercharging device can realize that biogas collects circulation pressurization automatically, need not any exterior mechanical pressurization, thereby has simplified its structure, reduced cost, and operation is very easy.
The methane-generating pit of employing collecting methane of the present invention and supercharging device, the bottom of collecting bag and/or collecting bag bracing frame is fixedly connected on the concrete foundation by pull bar.
Owing to adopted said structure, different according to collecting methane and supercharging device structure, can be with the bottom of collecting bag, the bottom of collecting bag bracing frame, the bottom of collecting bag and collecting bag bracing frame is connected on the pull bar, and be fixed on by this pull bar on the concrete foundation of biogas bottom, thereby guarantee that collecting methane and supercharging device can be positioned at the middle part of methane-generating pit, then the fermentation of being convenient to feed liquid is collected, simultaneously according to the height difference of liquid level and Automatic-boosting, the setting installation site of collecting bag end opening should be satisfied setting air pressure and guarantee again that simultaneously upper pool volume is not less than the gas tank volume to the difference of altitude of main pond desired location suitable for reading.
The methane-generating pit of employing collecting methane of the present invention and supercharging device is provided with liquid pass hole at described collecting bag, perhaps is provided with the gap between described collecting bag and the main pond, so that the upper and lower of collecting bag connects mutually.
Owing to adopted said structure, for the perforation between the below of the top that guarantees collecting bag and collecting bag, thereby being convenient to feed liquid makes progress or flows downward, therefore can liquid pass hole be set at the edge of collecting bag, thereby satisfy the effect that collecting bag feed liquid up and down connects, then so that collecting bag can play the effect of collecting methane and Automatic-boosting; Can certainly select less collecting bag according to the actual needs, so that have the gap between the inwall in the edge of collecting bag and main pond, realize equally the collecting bag up/down perforation, effect that can the unrestricted flow feed liquid.
The methane-generating pit of employing collecting methane of the present invention and supercharging device, the below of described protective guard is provided with the protective guard bracing frame, and described protective guard bracing frame is sealedly attached on the main pond, and described protective guard bracing frame supports protective guard and forms bag-shaped gas tank.
Owing to adopted said structure; the protective guard bracing frame is set below protective guard; this protective guard bracing frame is sealedly attached to the top in main pond simultaneously; and the protective guard bracing frame supports protective guard and forms bag-shaped gas tank; thereby so that the bag-shaped gas tank that this protective guard forms plays collection residual air, prevent the effect that foul smell distributes, and when the feed liquid unreacted in the methane-generating pit; guarantee that this protective guard keeps its original structure formation, thereby guarantee the normal use safety of methane-generating pit.
The methane-generating pit of employing collecting methane of the present invention and supercharging device, described collecting bag is divided into up and down two portions with main pond, has been respectively the lower storage reservoir of fermentation vat effect and to the upper storage reservoir of biogas supercharging.
Be divided into lower storage reservoir owing to adopted said structure, main pond to be collected bag, wherein lower storage reservoir has been mainly used in the fermentation vat effect, upper storage reservoir then is mainly used in providing the space, when being forced out to the interior feed liquid of lower storage reservoir, the biogas in the collecting bag is played supercharging, play with the effect of top hydraulic pressure to the biogas supercharging.
The methane-generating pit of employing collecting methane of the present invention and supercharging device, described main pond is made by steel plate, fw frp or piecing assembly stem pressing glass reinforced plastics plate.
Owing to adopted said structure, so that the material of this methane-generating pit is alternative large, can select according to the requirement of reality on the one hand, generalization is strong; In addition on the one hand on the basis of the various performances that can guarantee biogas, the low material of alternative costs as far as possible, thus be conducive to reduce the cost of whole methane-generating pit, be convenient to promote and quote.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, collecting methane of the present invention and supercharging device apply in the methane-generating pit, can realize fermentation collection and the Automatic-boosting of biogas, have changed traditional fermentor tank and the structure of gas storage tank, so that structure is very easy, with low cost, are fit to apply;
2, the methane-generating pit of this collecting methane of employing of the present invention and supercharging device can realize that biogas collects circulation pressurization automatically, need not any exterior mechanical pressurization, thereby has simplified its structure, reduced cost, and operation is very easy.
Description of drawings
Fig. 1 is collecting methane of the present invention and supercharging device and the structural representation that adopts the methane-generating pit of this device.
Mark among the figure: 1-master pond, 2-collecting bag, 3-protective guard, 4-pull bar, 5-concrete foundation, 6-airway, the excessive tracheae of 7-, 8-collecting bag bracing frame, 9-protective guard bracing frame, 10-gas tank, the bag-shaped gas tank of 11-, 12-lower storage reservoir, 13-upper storage reservoir, 14-collecting bag end opening.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, collecting methane of the present invention and supercharging device, comprise the collecting bag 2 that is arranged in the methane-generating pit, this collecting bag 2 can be by independent manufacturing, and can use in conjunction with airtight methane-generating pit, the opening of described collecting bag 2 is dipped in below the liquid level, it is inner namely to be arranged at common methane-generating pit, its lower edge is less than the diameter of methane-generating pit inwall, feed liquid liquid level in the methane-generating pit is higher than the opening of this collecting bag 2 simultaneously, be provided with airway 6 at the top of collecting bag 2, this airway 6 can be drawn the biogas in the collecting bag 2 and be used.Below collecting bag 2, be provided with collecting bag bracing frame 8, described collecting bag bracing frame 8 is arranged in the methane-generating pit, and described collecting bag bracing frame 8 upwards supports collecting bag 2 and forms gas tank 10, gas tank 10 is hemispherical dome structure or hemisphere and the cylindrical structure that combines, can certainly select according to the actual needs other structure, be advisable to satisfy its function, gas tank 10 so that the biogas that produces of fermented feed liquid of its below can enter in the gas tank 10, and the feed liquid in the gas tank 10 can be extruded, because the diameter of collecting bag 2 lower edges is less than the diameter of methane-generating pit inwall, therefore the fermented feed liquid that is forced out can be pressed into the top of gas tank 10, tolerance in gas tank 10 is larger, and to be pressed into the feed liquid on top of gas tank 10 just more, liquid level is just higher, thereby makes the gaseous tension in the gas tank 10 just larger.Gaseous tension equals the difference of altitude of liquid level in the top liquid level of gas tank 10 and the gas tank, thereby reaches the most anticyclonic purpose of control by the poor control of liquid level.Described collecting bag 2 and collecting bag bracing frame 8 are fixed on the bottom of methane-generating pit by pull bar 4, make collecting bag 2 and collecting bag bracing frame 8 be positioned at the middle part of methane-generating pit, collecting bag 2 is with the purpose that collecting bag bracing frame 8 is positioned at the middle part of methane-generating pit, the opening of being convenient to control collecting bag 2 and collecting bag bracing frame 8 is dipped in below the liquid level, reinforced liquid level can surpass the height of the end opening 14 of collecting bag, from can guarantee its below can carry out fermentation reaction, and its top can carry out top hydraulic pressure carries out supercharging to biogas effect.Therefore also can according to the actual needs, pull bar is fixed collecting bag 2 and collecting bag bracing frame 8, and an other end be fixed on the inwall or top of methane-generating pit, is advisable to satisfy actual needs.
Collecting methane of the present invention and supercharging device apply in the methane-generating pit, can realize that the fermentation of biogas is collected and automatically increase, have changed traditional fermentor tank and the structure of gas storage tank, so that structure is very easy, with low cost, are fit to apply.
As shown in Figure 1; the methane-generating pit of employing collecting methane of the present invention and supercharging device; concrete foundation 5 is adopted in the bottom of this methane-generating pit; and its sidewall is main pond 1; by steel plate; fw frp or piecing assembly stem pressing glass reinforced plastics plate are made; can select according to practical situation; described main pond 1 is fixed on the concrete foundation 5; top seal in main pond 1 is fixed with protective guard 3; the below of protective guard 3 is provided with protective guard bracing frame 9; described protective guard bracing frame 9 is sealedly attached on the main pond 1; form airtight methane-generating pit; described protective guard bracing frame 9 supports protective guard 3 and forms bag-shaped gas tank 11, and the gas tank 11 that protective guard 3 forms plays collection residual air, prevents the effect that foul smell distributes.Be provided with the tracheae 7 that overflows at protective guard 3.Be provided with collecting bag 2 at the middle part of methane-generating pit, collect the biogas that its below methane-generating pit produces, the opening of described collecting bag 2 is dipped in below the liquid level, be provided with airway 6 at the top of collecting bag 2, described airway 6 passes outside the main pond 1, biogas in the collecting bag 2 are drawn use, the below of collecting bag 2 is provided with collecting bag bracing frame 8, described collecting bag bracing frame 8 is arranged in the methane-generating pit, and described collecting bag bracing frame 8 upwards supports collecting bag 2 and forms gas tank 10, the bottom of collecting bag 2 and collecting bag bracing frame 8 is fixedly connected on the concrete foundation 5 by pull bar 4, collecting bag 2 is divided into up and down two portions with main pond 1, be respectively the lower storage reservoir 12 of fermentation vat effect and to the upper storage reservoir 13 of biogas supercharging, and on the sidewall in main pond 1, also be provided with feed-pipe, be convenient to fermented feed liquid is supplied to become owner of in the pond 1, be provided with liquid pass hole on the described collecting bag 2, perhaps collecting bag 2 is set to and main pond 1 between have the gap so that the fermented liquid of lower storage reservoir 12 rises and to enter in the upper storage reservoir 13.Collecting bag 2 and protective guard 3 can be made by the polymer soft composite material, according to actual needs any choice for use.
The methane-generating pit of employing collecting methane of the present invention and supercharging device; fermented feed liquid enters lower storage reservoir 12 via feeding-passage; reinforced liquid level should surpass the height of the end opening 14 of collecting bag; the biogas that produces after the feed liquid fermentation enters in the gas tank 10 of collecting bag 2 formation; when tolerance increases; feed liquid in the gas tank 10 is pressed in the upper storage reservoir 13 along the gap between collecting bag 2 and the main pond 1 or liquid pass hole; tolerance is larger, and to be pressed into the feed liquid of upper storage reservoir 13 just more; liquid level is just higher; thereby make the gaseous tension in the gas tank 10 just larger; gaseous tension equals the difference of altitude of liquid level in upper storage reservoir liquid level and the gas tank, and overflow gas and stink of escaping in gas tank and the feed liquid enters in the protective guard 13 harvesting and regularly emptying or utilize.
There is the biogas of air pressure to deliver to user's use by airway 6 gravity flows, the volume of gas tank 10 is set by 1/3rd of main pool volume, the setting installation site of collecting bag end opening 14 should be satisfied setting air pressure and guarantee again that simultaneously upper pool volume is not less than the gas tank volume to the difference of altitude of main pond desired location suitable for reading.
The methane-generating pit of employing collecting methane of the present invention and supercharging device, designs simplification, in a main pond a suitable spherical collecting bag being installed is the function of alternative one grade fermemtation pond and secondary gas-holder; It is quick for installation to build the pond, because member reduces half at least, therefore builds pond efficient and doubles at least; The feed liquid automatic lifting, realization biogas is collected the circulation pressurization automatically, satisfies the air pressure requirement that biogas is carried and used in the situation that need not the exterior mechanical pressurization; Save cost, saving member material cost, labour cost cost and mechanical energy consumption running cost; Convenient transportation is owing to the present invention mainly supports the use with our company's large, medium and small methane-generating pit of patented product mold pressing plate assembly type, so transportation is very convenient; Cleaning, odorless have prevented distributing of foul smell stink; It is easily convenient to be packed into the pond when using straw to make fermentation raw material.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a collecting methane and supercharging device, it is characterized in that: it comprises the collecting bag (2) that is arranged in the airtight methane-generating pit, described collecting bag (2) is covered in liquid level, and its opening is dipped in below the liquid level, is provided with airway (6) at the top of collecting bag (2); The below of described collecting bag (2) is provided with collecting bag bracing frame (8), and collecting bag bracing frame (8) upwards supports collecting bag (2) formation gas tank (10); Described collecting bag (2) and collecting bag bracing frame (8) are fixed on the bottom of airtight methane-generating pit by pull bar (4), and the opening of collecting bag (2) and collecting bag bracing frame (8) is dipped in below the liquid level.
2. collecting methane as claimed in claim 1 and supercharging device, it is characterized in that: described gas tank (10) is hemispherical dome structure or hemisphere and the cylindrical structure that combines.
3. methane-generating pit that adopts claim 1 or 2 described collecting methanes and supercharging device, it is characterized in that: it comprises concrete foundation (5) and is fixed in main pond (1) on the concrete foundation (5), the top seal in described main pond (1) has protective guard (3), form airtight biomass pool body, at protective guard (3) excessive tracheae (7) is set, the opening of described collecting methane and supercharging device is dipped in below the interior liquid level in main pond (1), and described airway (6) passes outside the main pond (1); The bottom of collecting bag (2) and/or collecting bag bracing frame (8) is fixedly connected on the concrete foundation (5) by pull bar (4).
4. the methane-generating pit of employing collecting methane as claimed in claim 3 and supercharging device, it is characterized in that: be provided with liquid pass hole at described collecting bag (2), perhaps be provided with the gap between described collecting bag (2) and main pond (1), so that the upper and lower of collecting bag (2) connects mutually.
5. such as the methane-generating pit of claim 3 or 4 described employing collecting methanes and supercharging device; it is characterized in that: the below of described protective guard (3) is provided with protective guard bracing frame (9); described protective guard bracing frame (9) is sealedly attached on the main pond (1), and described protective guard bracing frame (9) supports protective guard (3) and forms bag-shaped gas tank (11).
6. the methane-generating pit of employing collecting methane as claimed in claim 5 and supercharging device is characterized in that: described collecting bag (2) Jiang Zhuchi (1) is divided into up and down two portions, has been respectively the lower storage reservoir (12) of fermentation vat effect and to the upper storage reservoir (13) of biogas supercharging.
7. such as the methane-generating pit of claim 3 or 4 or 6 described employing collecting methanes and supercharging device, it is characterized in that: described main pond (1) is made by steel plate, fw frp or piecing assembly stem pressing glass reinforced plastics plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100674132A CN102586086B (en) | 2012-03-15 | 2012-03-15 | Methane collecting and pressurizing device and methane-generating pit adopting same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100674132A CN102586086B (en) | 2012-03-15 | 2012-03-15 | Methane collecting and pressurizing device and methane-generating pit adopting same |
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| Publication Number | Publication Date |
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| CN102586086A CN102586086A (en) | 2012-07-18 |
| CN102586086B true CN102586086B (en) | 2013-01-16 |
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| CN2012100674132A Expired - Fee Related CN102586086B (en) | 2012-03-15 | 2012-03-15 | Methane collecting and pressurizing device and methane-generating pit adopting same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105152319B (en) * | 2015-07-07 | 2017-12-19 | 扬州市正源市政环保工程有限公司 | A kind of anaerobic fermentation tower negative-pressure protection device |
| CN109825339A (en) * | 2019-03-08 | 2019-05-31 | 黄冈师范学院 | The device and method of simple collection and purification storage methane conveying |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2723444Y (en) * | 2004-06-29 | 2005-09-07 | 刘招华 | Household simple methane pool in cuontryside |
| DE102005061841A1 (en) * | 2005-12-23 | 2007-06-28 | Agraferm Technologies Ag | Cover for slurry tank, biogas storage and the like |
| CN200961136Y (en) * | 2006-10-12 | 2007-10-17 | 齐永先 | Highly effective biomass pool |
| CN201010646Y (en) * | 2007-03-08 | 2008-01-23 | 赵同高 | Integrated voltage-stabilized floating cover type biogas generating pit |
| CN202390436U (en) * | 2012-03-15 | 2012-08-22 | 成都泓奇实业股份有限公司 | Methane collecting and pressurizing device and methane tank utilizing same |
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| CN102586086A (en) | 2012-07-18 |
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