CN202912950U - Biogas digester - Google Patents

Biogas digester Download PDF

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Publication number
CN202912950U
CN202912950U CN2012203850818U CN201220385081U CN202912950U CN 202912950 U CN202912950 U CN 202912950U CN 2012203850818 U CN2012203850818 U CN 2012203850818U CN 201220385081 U CN201220385081 U CN 201220385081U CN 202912950 U CN202912950 U CN 202912950U
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China
Prior art keywords
methane
layer
coil pipe
generating pit
internal layer
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Withdrawn - After Issue
Application number
CN2012203850818U
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Chinese (zh)
Inventor
周奇迪
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BEIJING QIDI HUIMIN TECHNOLOGY INVESTMENT Co Ltd
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BEIJING QIDI HUIMIN TECHNOLOGY INVESTMENT Co Ltd
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Priority to CN2012203850818U priority Critical patent/CN202912950U/en
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Publication of CN202912950U publication Critical patent/CN202912950U/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
    • C12M23/20—Material Coatings
    • 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
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • 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
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
    • C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
    • C12M41/24—Heat exchange systems, e.g. heat jackets or outer envelopes inside the 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

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Molecular Biology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Immunology (AREA)
  • Clinical Laboratory Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The utility model discloses a biogas digester. A digester body of the biogas digester comprises an impermeable layer, an inner layer, an outer layer and a heat insulating layer, wherein the inner layer and the outer layer form spaces with openings in the tops; the inner layer and the outer layer are sealed; the impermeable layer is fixed on the whole inner wall of the inner layer; the heat insulating layer is positioned at the bottom and/or the side wall of the digester body of the biogas digester between the inner layer and the outer layer; in addition, the biogas digester further comprises a heating coil pipe and a circulating pump, wherein the heating coil pipe is arranged at the bottom and/or the side wall of the biogas digester body between the heat insulating layer and the inner layer; the circulating pump is connected with one end of the heating coil pipe; and hot water is pumped into the heating coil pipe. Compared with the prior art, the biogas digester disclosed by the embodiment of the utility model has the advantages as follows: as the heat insulating layer is arranged in the inner wall of the biogas digester, the temperature diffusion speed in the biogas digester can be reduced, the heat insulating effect is enhanced, the biogas digester is beneficial for fermentation and the gas production speed and efficiency are increased.

Description

A kind of methane-generating pit
Technical field
The application relates to the biogas technology field, particularly relates to a kind of methane-generating pit.
Background technology
Biogas is as a kind of new clean energy, can be widely used in China rural area, it is to utilize the discarded stalk of farm crop to produce biogas as the energy through fermentation, be used for cooking, heat up water, illumination etc., can save a large amount of fire coals, fuel oil and faggot etc., and can improve environment, thermo-efficiency is high, to be paid attention to by relevant department.
Because temperature influence is larger when fermentation, so the gas production rate of existing methane-generating pit all changes along with seasonal variation, only the feed liquid in (general temperature is greater than 15 ℃ the time) methane-generating pit could normal output biogas when temperature is higher.And when temperature is lower than certain temperature (generally below 15 ℃ time), especially when winter, be in the methane-generating pit in the frozen soil layer, fermenting speed is slower, usually 3 talentes can aerogenesis after feeding intake, aerogenesis speed and efficient are lower, can not normal gas producing, cause follow-up biogas utilization to carry out, thereby limited promoting the use of of biogas.
The utility model content
In view of this, the embodiment of the present application provides a kind of methane-generating pit, has insulation construction, to solve the problem that methane-generating pit can not normal gas producing when the low temperature.
To achieve these goals, the technical scheme that provides of the embodiment of the present application is as follows:
A kind of methane-generating pit, the pond body of this methane-generating pit comprises: impervious barrier, internal layer, skin and thermal insulation layer, wherein:
Mutually sealing between the described internal layer and outer all form the space that a top is provided with opening, described internal layer and skin, described impervious barrier is fixed on the whole inwall of described internal layer;
Described thermal insulation layer is shown in the bottom of described methane tank body and/or the sidewall locations between internal layer and the skin;
In addition, also comprise: heat coil pipe and recycle pump, wherein:
Described heating between the thermal insulation layer and internal layer that coil pipe is arranged on the bottom of described methane tank body and/or sidewall locations;
Described recycle pump is connected with a described end that heats coil pipe, and hot water is pumped into described heating in the coil pipe.
Preferably, the described coil pipe that heats that is positioned on the described methane-generating pit sidewall arranges in the mode of twining described methane-generating pit internal layer.
Preferably, the water-in of described recycle pump is connected with the solar water water outlet, perhaps is connected with the underground heat hot water outlet.
By above technical scheme as seen, be provided with thermal insulation layer in this methane-generating pit inwall that the embodiment of the present application provides, so just can reduce methane-generating pit temperature velocity of diffusion, improve heat insulation effect, be conducive to fermentation, improve aerogenesis speed and efficient.
In addition, in this methane-generating pit inwall, can also be provided with and heat coil pipe, and when the temperature of feed liquid in the methane-generating pit is hanged down, can control the hot water that heats in the coil pipe circulates, and then so that this methane-generating pit outside having the function of insulation, can also have the function of heating, both cooperatively interact so that the feed liquid in the methane-generating pit is in suitable leavening temperature, improve aerogenesis speed and efficient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, the accompanying drawing that the following describes only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of a kind of methane-generating pit that Fig. 1 provides for the embodiment of the present application;
The structural representation of the another kind of methane-generating pit that Fig. 2 provides for the embodiment of the present application.
Embodiment
In order to make those skilled in the art person understand better technical scheme among the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all should belong to the scope of the application's protection.
Embodiment one:
The structural representation of a kind of methane-generating pit that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1,1 is the pond body of methane-generating pit among the figure, and in the embodiment of the present application, methane tank body 1 comprises: internal layer 2, skin 3, thermal insulation layer 4 and impervious barrier 5, wherein: impervious barrier 5, internal layer 2, thermal insulation layer 4 and outer 3 distribute from inside to outside successively.
Internal layer 2 and outer 3 is encircled into the space that a top is provided with opening, and as shown in Figure 1, opening is 6, can be provided with gas output device on the opening 6, is used for the biogas of methane tank body 1 interior generation is exported to the user.Mutually sealing between the internal layer 2 and outer 3 namely is provided with the space between internal layer 2 and outer 3.In the embodiment of the present application, according to different build process, internal layer 2, outer 3 can be selected any one in concrete layer and the frp layer, concrete layer can be poured into a mould at the construction field (site), and frp layer can be implemented in manufacturing typing in the factory, but usually in reality is built, internal layer 2 and outer 3 common selection commaterial.
Impervious barrier 5 is positioned on the inwall of internal layer 2, the effect of impervious barrier 5 is to prevent that the natural pond liquid of depositing in the methane tank body 1 from oozing out, and not only can affect the gas generation process of biogas after natural pond liquid oozes out, and if in winter, natural pond liquid oozes out and laggardly enters in the soil to form frozen soil layer, and methane tank body 1 is damaged.In the embodiment of the present application, impervious barrier 4 can be the water-proof coating of field-applied on internal layer 2 inwalls.
As shown in Figure 1, in the crack of thermal insulation layer 4 between internal layer 2 and outer 3, and the position of thermal insulation layer 4 can be arranged in the bottom of methane tank body, also can be arranged in the sidewall of methane tank body, in addition, also can be arranged in simultaneously bottom and the sidewall of methane tank body.And as shown in Figure 1, in the embodiment of the present application, in order to improve the heat insulation effect of thermal insulation layer 4, be provided with the space between thermal insulation layer 4 and the internal layer 2, outer 3, be filled with air in the space, can between thermal insulation layer 4 and internal layer 2, outer 3, all form gas cloud like this, improved heat insulation effect.Aforementionedly being provided with the space between thermal insulation layer 4 and internal layer 2, outer 3, only is the application's a preferred embodiment, considers the difficulty problem of building this methane tank body, can also make between thermal insulation layer 4 and internal layer 2, the skin 3 to contact.
In addition, the material of thermal insulation layer 4 can be selected the macromolecular material with effect of heat insulation, such as: polymer polyphenyl plate etc.And as required, in other embodiment of the application, can also in the top of methane tank body, also thermal insulation layer can be set.
Compared with prior art, be provided with thermal insulation layer in this methane-generating pit inwall that the embodiment of the present application provides, so just can reduce methane-generating pit temperature velocity of diffusion, improve heat insulation effect, be conducive to fermentation, improve aerogenesis speed and efficient.
Embodiment two:
In a upper embodiment, in methane-generating pit, be provided with warming plate, to reduce temperature velocity of diffusion in the pond, but this prerequisite is that the temperature in the pond is higher, and when being positioned at winter, the temperature of natural pond liquid self is just lower in the pond, uses separately this moment so warming plate also can't guarantee the temperature of the natural pond liquid of methane-generating pit.For this reason, the embodiment of the present application also provides another kind of methane-generating pit.
As shown in Figure 2, on the basis of embodiment one, this methane tank body can also comprise: heat coil pipe 7 and recycle pump 8, wherein:
Heat between thermal insulation layer 4 that coil pipe 7 can be arranged on methane tank body bottom and the internal layer 2 (as shown in Figure 2), also can be arranged between the thermal insulation layer 4 and internal layer 2 of methane tank body sidewall, certain, can also arrange simultaneously in these two positions.Recycle pump 8 is connected with an end that heats coil pipe 7, is pumped into for the water that temperature is higher to heat in the coil pipe 7, and the natural pond liquid in the methane tank body 1 is heated.
Heat coil pipe 7 between the thermal insulation layer 4 that is arranged on methane tank body bottom of describing among Fig. 2 and the internal layer 2, when the bottom at methane tank body 1, heat coil pipe 7 and can adopt the mode of spiral to distribute.In addition, when the sidewall at methane tank body 1, heat coil pipe 7 and can adopt the mode of spiral to distribute, namely heat on the inwall outer wall that coil pipe 7 can be wrapped in methane tank body 1.
When reality was used, the water-in of recycle pump 8 can be connected with the water outlet of solar water, also can be connected with the mouth of a river of blowing of earth source heat pump, namely can use sun power or underground heat that the natural pond liquid in the methane tank body 1 is heated.In addition, when the user does not have above-mentioned sun power and Geothermal Conditions, can also obtain hot water by alternate manner, and hot water is pumped into heats in the coil pipe 7, the natural pond liquid in the methane tank body 1 is heated.
In the embodiment of the present application, in this methane-generating pit inwall, can also be provided with and heat coil pipe, and when the temperature of feed liquid in the methane-generating pit is hanged down, can control the hot water that heats in the coil pipe circulates, and then so that this methane-generating pit outside having the function of insulation, can also have the function of heating, both cooperatively interact so that the feed liquid in the methane-generating pit is in suitable leavening temperature, improve aerogenesis speed and efficient.
The above only is the application's preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be apparent to one skilled in the art, and General Principle as defined herein can in the situation of the spirit or scope that do not break away from the application, realize in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (4)

1. a methane-generating pit is characterized in that, the pond body of this methane-generating pit comprises: impervious barrier, internal layer, skin and thermal insulation layer, wherein:
Mutually sealing between the described internal layer and outer all form the space that a top is provided with opening, described internal layer and skin, described impervious barrier is fixed on the whole inwall of described internal layer;
Described thermal insulation layer is shown in the bottom of described methane tank body and/or the sidewall locations between internal layer and the skin;
In addition, also comprise: heat coil pipe and recycle pump, wherein:
Described heating between the thermal insulation layer and internal layer that coil pipe is arranged on the bottom of described methane tank body and/or sidewall locations;
Described recycle pump is connected with a described end that heats coil pipe, and hot water is pumped into described heating in the coil pipe.
2. methane-generating pit according to claim 1 is characterized in that, the described coil pipe that heats that is positioned at described methane-generating pit bottom arranges in a spiral manner.
3. methane-generating pit according to claim 1 is characterized in that, is positioned at the described coil winding that heats on the described methane-generating pit sidewall on described methane-generating pit inner layer outer wall.
4. according to claim 2 or 3 described methane-generating pits, it is characterized in that the water-in of described recycle pump is connected with the solar water water outlet, perhaps be connected with the underground heat hot water outlet.
CN2012203850818U 2012-08-03 2012-08-03 Biogas digester Withdrawn - After Issue CN202912950U (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102864072A (en) * 2012-08-03 2013-01-09 北京奇迪惠民科技投资有限公司 Methane-generating pit
CN102864071A (en) * 2012-08-03 2013-01-09 北京奇迪惠民科技投资有限公司 Methane tank
CN104928165A (en) * 2015-06-25 2015-09-23 南安市绿野沼气技术开发研究所 Biogas pool with temperature increase and retention function
CN109735436A (en) * 2019-01-07 2019-05-10 安徽农业大学 A kind of pool wall internal water circulation heating tube methane-generating pit
CN112300902A (en) * 2020-10-30 2021-02-02 湖南达道新能源开发有限公司 Methane tank structure heated by geothermal energy

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102864072A (en) * 2012-08-03 2013-01-09 北京奇迪惠民科技投资有限公司 Methane-generating pit
CN102864071A (en) * 2012-08-03 2013-01-09 北京奇迪惠民科技投资有限公司 Methane tank
CN104928165A (en) * 2015-06-25 2015-09-23 南安市绿野沼气技术开发研究所 Biogas pool with temperature increase and retention function
CN104928165B (en) * 2015-06-25 2017-10-31 南安市绿野沼气技术开发研究所 A kind of temperature raising and maintaining methane-generating pit
CN109735436A (en) * 2019-01-07 2019-05-10 安徽农业大学 A kind of pool wall internal water circulation heating tube methane-generating pit
CN112300902A (en) * 2020-10-30 2021-02-02 湖南达道新能源开发有限公司 Methane tank structure heated by geothermal energy

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AV01 Patent right actively abandoned

Granted publication date: 20130501

Effective date of abandoning: 20140716

RGAV Abandon patent right to avoid regrant