CN106481105A - A kind of method of construction of water system Natural Circulation methane-generating pit - Google Patents
A kind of method of construction of water system Natural Circulation methane-generating pit Download PDFInfo
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- CN106481105A CN106481105A CN201610841464.4A CN201610841464A CN106481105A CN 106481105 A CN106481105 A CN 106481105A CN 201610841464 A CN201610841464 A CN 201610841464A CN 106481105 A CN106481105 A CN 106481105A
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- generating pit
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
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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
- C12M23/36—Means for collection or storage of gas; Gas holders
-
- 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
- C12M27/02—Stirrer or mobile mixing elements
-
- 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
- C12M37/00—Means for sterilizing, maintaining sterile conditions or avoiding chemical or biological contamination
- C12M37/04—Seals
-
- 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
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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 kind of method of construction of water system Natural Circulation methane-generating pit, comprise the following steps：S1, determine the volume of fermentation vat, determine position relationship, structure draws construction drawing；S2, analysis select optimal building biomass pool position；S4, digged pit according to the size on construction drawing, recessed position in hole is filled and led up, does compacting and process, surrounding coats Calx in hole, removes the debris in hole；S5, hole in concrete pour into a mould, encapsulation process is done to methane-generating pit；S6, foundation construction drawing, pour into a mould methane-generating pit safety head, reserve the position of airway, check process；S7, installation airway, install water pressure chamber top cover, methane-generating pit safety head is pacified, and does encapsulation process, pressure testing is qualified, obtains final product.A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, constructed methane-generating pit cannot ferment completely and while discharging is difficult it is ensured that air-tightness solving, and easy to use, gas production is high, and method of construction is simple, rational in infrastructure, is worthy to be popularized.
Description
Technical field
The present invention relates to building biomass pool field, more particularly, to a kind of method of construction of water system Natural Circulation methane-generating pit.
Background technology
Biogas is various organic substance, in isolation air (reducing condition), and under suitable temperature, pH value, Jing Guowei
A kind of combustible gas that biological Fermentation produces.Biogas belongs to secondary energy sources, and is regenerative resource.Chinese conduct
Energy-consuming big country, the exploitation of new forms of energy have great importance to the sustainable development of national economy, with rural area society
Economic the developing rapidly of meeting, rural energy consumption also increasingly increases, in this context, before Methane Resources are as a great application
The new forms of energy of scape, it develops the effective behave being to solve rural energy supply problem under energy shortage situation, and it develops day
Benefit is paid attention to by country.Under the support of central-government policy guiding and fund input, the scale of Chinese biogas industry presents year by year
The quantity of incremental trend, especially domestic methane tank increases substantially, has become as the main force of biogas industry.Chinese countryside family is used
Methane-generating pit increased in recent years year by year, but had fermentation methane-generating pit for farm household not exclusively more, and gas production is not high, discharging difficulty etc.
Problem.The present invention proposes a kind of method of construction of water system Natural Circulation methane-generating pit and can effectively solve the problem that the problems referred to above.
Content of the invention
The invention aims to shortcoming present in solution prior art, and a kind of water system Natural Circulation proposing
The method of construction of methane-generating pit.
A kind of method of construction of water system Natural Circulation methane-generating pit, comprises the following steps：
S1, according to practical situation, determine the volume of fermentation vat, determine fermentation vat, feed pipe, discharge nozzle, airway, hydraulic pressure
Between and connect water pressure chamber water pipe A and water pipe B position relationship, structure draw construction drawing；
S2, comprehensive analysis charging, discharging, with gas and the ground factor such as condition, select optimal building biomass pool position；
S4, digged pit according to the size on construction drawing, dig out the water of fermentation vat, feed pipe, discharge nozzle, water pressure chamber and water pressure chamber
Pipe A and the relevant position of water pipe B, fill and lead up to recessed position in hole, do compacting process, surrounding coats Calx in hole, removes in hole
Debris；
S5, hole in concrete pour into a mould, encapsulation process is done to the corner of the methane-generating pit of molding, gap and seam；
S6, foundation construction drawing, build template, pour into a mould methane-generating pit safety head with mixed mud, cover and reserve peace in template
The position of dress airway, refine, do leak detection and process；
S7, airway is installed to the top of methane-generating pit safety head after, methane-generating pit safety head is installed on methane-generating pit, will
Water pressure chamber top cover is installed above water pressure chamber, does encapsulation process, pressure testing is qualified, obtains final product.
Preferably, in described step S1, fermentation vat is irregular roundness cylindricality, and the volume of fermentation vat is 6-8m3.
Preferably, in described step S1, one end of feed pipe should enter fermentation vat from oblique cutting above the left side of fermentation vat
Portion, the length that the other end is reserved is flushed with the position of methane-generating pit safety head, and feed tube diameter is 30-50cm.
Preferably, the position oblique cutting that in described step S1, discharge nozzle one end should be on the upper side from the middle part of fermentation vat enters fermentation vat
Bottom position on the upper side, the other end reserve length be less than methane-generating pit safety head position 20-30cm, discharge nozzle a diameter of
50-70cm.
Preferably, in described step S1, airway is copper pipe, a diameter of 12-16mm.
Preferably, the water pressure chamber in described step S1 is located at top in the right side of fermentation vat.
Preferably, the water pipe A in described step S1 and water pipe B are used to connect fermentation vat and water pressure chamber, the peace of water pipe A
Holding position 15-20cm higher than the installation site of water pipe B.
Preferably, in described step S5, concrete used is 150 or No. 200 concrete.
Preferably, in described step S7, the top cover of water pressure chamber is cladded with safety glass by solar heat-collection plate and constitutes, and area is
0.5-1m2.
A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, by the size before building and position
Fermentation and aerogenesis situation to improve methane-generating pit for the material choice in determining and building, has considered charging, discharging during addressing
And the situation with gas, facilitate use in the future, the design of water pressure chamber top cover, can effectively absorb solar energy, heat water pressure chamber
Slag liquid, make hot water enter blood circulation, improve the temperature of fermentation, accelerate fermentation efficiency, improve the speed of aerogenesis, go out
The position setting of expects pipe and diameter avoid the difficulty of discharging, and also can be from the position poking bar of discharge nozzle to fermentation vat
The slag muck of bottom is stirred, and makes fermentation more complete, and gas production improves, and method of construction proposed by the present invention is simple, rational in infrastructure,
It is worthy to be popularized.
Specific embodiment
With reference to specific embodiment, the present invention is explained further.
Embodiment one
A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, comprises the following steps：
S1, the volume of selection irregular roundness cylindricality fermentation vat are 7m3, by one end of a diameter of 50cm feed pipe from fermentation vat
Left side above oblique cutting enter the middle part of fermentation vat, the length that the other end is reserved is flushed with the position of methane-generating pit safety head；By diameter
Enter the bottom position on the upper side of fermentation vat for 70cm discharge nozzle one end position oblique cutting on the upper side from the middle part of fermentation vat, the other end is pre-
The length stayed is less than the position 28cm of methane-generating pit safety head；Water pressure chamber is located at top in the right side of fermentation vat；Water pipe A and water pipe B
It is used for connecting fermentation vat and water pressure chamber, the installation site 18cm higher than the installation site of water pipe B of water pipe A；According to foregoing description, structure
Draw construction drawing；
S2, comprehensive analysis charging, discharging, with gas and the ground factor such as condition, select optimal building biomass pool position；
S4, digged pit according to the size on construction drawing, dig out the water of fermentation vat, feed pipe, discharge nozzle, water pressure chamber and water pressure chamber
Pipe A and the relevant position of water pipe B, fill and lead up to recessed position in hole, do compacting process, surrounding coats Calx in hole, removes in hole
Debris；
S5, in hole with the cast of No. 150 concrete, the corner of the methane-generating pit of molding, gap and seam are done at sealing
Reason；
S6, foundation construction drawing, build template, pour into a mould methane-generating pit safety heads with No. 200 mixed muds, cover reserved in template
Go out the position installing a diameter of 13mm inducing QI copper pipe, refine, do leak detection and process；
S7, airway is installed to the top of methane-generating pit safety head after, methane-generating pit safety head is installed on methane-generating pit, will
Being cladded with the area that safety glass constitutes by solar heat-collection plate is 1m2Water pressure chamber top cover is installed above water pressure chamber, does encapsulation process,
Pressure testing is qualified, obtains final product.
Embodiment two
A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, comprises the following steps：
S1, the volume of selection irregular roundness cylindricality fermentation vat are 8m3, by one end of a diameter of 30cm feed pipe from fermentation vat
Left side above oblique cutting enter the middle part of fermentation vat, the length that the other end is reserved is flushed with the position of methane-generating pit safety head；By diameter
Enter the bottom position on the upper side of fermentation vat for 65cm discharge nozzle one end position oblique cutting on the upper side from the middle part of fermentation vat, the other end is pre-
The length stayed is less than the position 20cm of methane-generating pit safety head；Water pressure chamber is located at top in the right side of fermentation vat；Water pipe A and water pipe B
It is used for connecting fermentation vat and water pressure chamber, the installation site 20cm higher than the installation site of water pipe B of water pipe A；According to foregoing description, structure
Draw construction drawing；
S2, comprehensive analysis charging, discharging, with gas and the ground factor such as condition, select optimal building biomass pool position；
S4, digged pit according to the size on construction drawing, dig out the water of fermentation vat, feed pipe, discharge nozzle, water pressure chamber and water pressure chamber
Pipe A and the relevant position of water pipe B, fill and lead up to recessed position in hole, do compacting process, surrounding coats Calx in hole, removes in hole
Debris；
S5, in hole with the cast of No. 200 concrete, the corner of the methane-generating pit of molding, gap and seam are done at sealing
Reason；
S6, foundation construction drawing, build template, pour into a mould methane-generating pit safety heads with No. 150 mixed muds, cover reserved in template
Go out the position installing a diameter of 14mm inducing QI copper pipe, refine, do leak detection and process；
S7, airway is installed to the top of methane-generating pit safety head after, methane-generating pit safety head is installed on methane-generating pit, will
Being cladded with the area that safety glass constitutes by solar heat-collection plate is 0.6m2Water pressure chamber top cover is installed above water pressure chamber, does at sealing
Reason, pressure testing is qualified, obtains final product.
Embodiment three
A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, comprises the following steps：
S1, the volume of selection irregular roundness cylindricality fermentation vat are 6m3, by one end of a diameter of 45cm feed pipe from fermentation vat
Left side above oblique cutting enter the middle part of fermentation vat, the length that the other end is reserved is flushed with the position of methane-generating pit safety head；By diameter
Enter the bottom position on the upper side of fermentation vat for 50cm discharge nozzle one end position oblique cutting on the upper side from the middle part of fermentation vat, the other end is pre-
The length stayed is less than the position 30cm of methane-generating pit safety head；Water pressure chamber is located at top in the right side of fermentation vat；Water pipe A and water pipe B
It is used for connecting fermentation vat and water pressure chamber, the installation site 16cm higher than the installation site of water pipe B of water pipe A；According to foregoing description, structure
Draw construction drawing；
S2, comprehensive analysis charging, discharging, with gas and the ground factor such as condition, select optimal building biomass pool position；
S4, digged pit according to the size on construction drawing, dig out the water of fermentation vat, feed pipe, discharge nozzle, water pressure chamber and water pressure chamber
Pipe A and the relevant position of water pipe B, fill and lead up to recessed position in hole, do compacting process, surrounding coats Calx in hole, removes in hole
Debris；
S5, in hole with the cast of No. 150 concrete, the corner of the methane-generating pit of molding, gap and seam are done at sealing
Reason；
S6, foundation construction drawing, build template, pour into a mould methane-generating pit safety heads with No. 200 mixed muds, cover reserved in template
Go out the position installing a diameter of 12mm inducing QI copper pipe, refine, do leak detection and process；
S7, airway is installed to the top of methane-generating pit safety head after, methane-generating pit safety head is installed on methane-generating pit, will
Being cladded with the area that safety glass constitutes by solar heat-collection plate is 0.9m2Water pressure chamber top cover is installed above water pressure chamber, does at sealing
Reason, pressure testing is qualified, obtains final product.
Example IV
A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, comprises the following steps：
S1, the volume of selection irregular roundness cylindricality fermentation vat are 6.5m3, by one end of a diameter of 40cm feed pipe from fermentation
Above the left side in pond, oblique cutting enters the middle part of fermentation vat, and the length that the other end is reserved is flushed with the position of methane-generating pit safety head；Will be straight
Footpath is the bottom position on the upper side that 55cm discharge nozzle one end position oblique cutting on the upper side from the middle part of fermentation vat enters fermentation vat, the other end
Reserved length is less than the position 22cm of methane-generating pit safety head；Water pressure chamber is located at top in the right side of fermentation vat；Water pipe A and water pipe
B is used for connecting fermentation vat and water pressure chamber, the installation site 19cm higher than the installation site of water pipe B of water pipe A；According to foregoing description,
Structure draws construction drawing；
S2, comprehensive analysis charging, discharging, with gas and the ground factor such as condition, select optimal building biomass pool position；
S4, digged pit according to the size on construction drawing, dig out the water of fermentation vat, feed pipe, discharge nozzle, water pressure chamber and water pressure chamber
Pipe A and the relevant position of water pipe B, fill and lead up to recessed position in hole, do compacting process, surrounding coats Calx in hole, removes in hole
Debris；
S5, in hole with the cast of No. 150 concrete, the corner of the methane-generating pit of molding, gap and seam are done at sealing
Reason；
S6, foundation construction drawing, build template, pour into a mould methane-generating pit safety heads with No. 150 mixed muds, cover reserved in template
Go out the position installing a diameter of 15mm inducing QI copper pipe, refine, do leak detection and process；
S7, airway is installed to the top of methane-generating pit safety head after, methane-generating pit safety head is installed on methane-generating pit, will
Being cladded with the area that safety glass constitutes by solar heat-collection plate is 0.8m2Water pressure chamber top cover is installed above water pressure chamber, does at sealing
Reason, pressure testing is qualified, obtains final product.
Embodiment five
A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, comprises the following steps：
S1, the volume of selection irregular roundness cylindricality fermentation vat are 7.5m3, by one end of a diameter of 35cm feed pipe from fermentation
Above the left side in pond, oblique cutting enters the middle part of fermentation vat, and the length that the other end is reserved is flushed with the position of methane-generating pit safety head；Will be straight
Footpath is the bottom position on the upper side that 60cm discharge nozzle one end position oblique cutting on the upper side from the middle part of fermentation vat enters fermentation vat, the other end
Reserved length is less than the position 25cm of methane-generating pit safety head；Water pressure chamber is located at top in the right side of fermentation vat；Water pipe A and water pipe
B is used for connecting fermentation vat and water pressure chamber, the installation site 15cm higher than the installation site of water pipe B of water pipe A；According to foregoing description,
Structure draws construction drawing；
S2, comprehensive analysis charging, discharging, with gas and the ground factor such as condition, select optimal building biomass pool position；
S4, digged pit according to the size on construction drawing, dig out the water of fermentation vat, feed pipe, discharge nozzle, water pressure chamber and water pressure chamber
Pipe A and the relevant position of water pipe B, fill and lead up to recessed position in hole, do compacting process, surrounding coats Calx in hole, removes in hole
Debris；
S5, in hole with the cast of No. 200 concrete, the corner of the methane-generating pit of molding, gap and seam are done at sealing
Reason；
S6, foundation construction drawing, build template, pour into a mould methane-generating pit safety heads with No. 200 mixed muds, cover reserved in template
Go out the position installing a diameter of 16mm inducing QI copper pipe, refine, do leak detection and process；
S7, airway is installed to the top of methane-generating pit safety head after, methane-generating pit safety head is installed on methane-generating pit, will
Being cladded with the area that safety glass constitutes by solar heat-collection plate is 0.5m2Water pressure chamber top cover is installed above water pressure chamber, does at sealing
Reason, pressure testing is qualified, obtains final product.
According to the construction cost to the method for construction that above-mentioned five groups of embodiments propose, and the methane-generating pit building fermentation,
Aerogenesis situation, the convenient situation of discharging etc. carry out Integrated comparative and learn：In the method for construction that above-mentioned five groups of embodiments propose, embodiment
The methane tank gas production amount highest that one builds, stir, slag tap the most convenient；Construction cost in embodiment three is minimum, is to use gas
Measure the first-selection of few family.A kind of method of construction of water system Natural Circulation methane-generating pit proposed by the present invention, before building
Size and position determine and build in fermentation and aerogenesis situation to improve methane-generating pit for the material choice, consider during addressing
Charging, discharging and the situation with gas, facilitate use in the future, the design of water pressure chamber top cover, effectively can absorb solar energy,
The slag liquid of heating water pressure chamber, makes hot water enter blood circulation, improves the temperature of fermentation, accelerate fermentation efficiency, improve product
The speed of gas, the position setting of discharge nozzle and diameter avoid the difficulty of discharging, and also can be from the position of discharge nozzle with stirring
Mix rod the slag muck of fermentation vat bottom is stirred, make fermentation more complete, gas production improves, method of construction letter proposed by the present invention
Single, rational in infrastructure, low cost, it is worthy to be popularized.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (9)
1. a kind of method of construction of water system Natural Circulation methane-generating pit is it is characterised in that comprise the following steps：
S1, according to practical situation, determine the volume of fermentation vat, determine fermentation vat, feed pipe, discharge nozzle, airway, water pressure chamber and
Connect the position relationship of the water pipe A and water pipe B of water pressure chamber, structure draws construction drawing；
S2, comprehensive analysis charging, discharging, with gas and the ground factor such as condition, select optimal building biomass pool position；
S4, digged pit according to the size on construction drawing, dig out the water pipe A of fermentation vat, feed pipe, discharge nozzle, water pressure chamber and water pressure chamber
With the relevant position of water pipe B, recessed position in hole is filled and led up, does compacting process, surrounding coats Calx in hole, remove miscellaneous in hole
Thing；
S5, hole in concrete pour into a mould, encapsulation process is done to the corner of the methane-generating pit of molding, gap and seam；
S6, according to construction drawing, build template, in template, pour into a mould methane-generating pit safety head with mixed mud, cover and reserve installation and lead
The position of trachea, refine, do leak detection and process；
S7, airway is installed to the top of methane-generating pit safety head after, methane-generating pit safety head is installed on methane-generating pit, by hydraulic pressure
Between top cover install water pressure chamber above, do encapsulation process, pressure testing is qualified, obtains final product.
2. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
In rapid S1, fermentation vat is irregular roundness cylindricality, and the volume of fermentation vat is 6-8m3.
3. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
In rapid S1, one end of feed pipe should enter the middle part of fermentation vat, length and natural pond that the other end is reserved by oblique cutting above the left side of fermentation vat
The position of gas pond safety head flushes, and feed tube diameter is 30-50cm.
4. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
The position oblique cutting that in rapid S1, discharge nozzle one end should be on the upper side from the middle part of fermentation vat enters the bottom position on the upper side of fermentation vat, the other end
Reserved length is less than the position 20-30cm, a diameter of 50-70cm of discharge nozzle of methane-generating pit safety head.
5. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
In rapid S1, airway is copper pipe, a diameter of 12-16mm.
6. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
Water pressure chamber in rapid S1 is located at top in the right side of fermentation vat.
7. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
Water pipe A in rapid S1 and water pipe B are used to connect fermentation vat and water pressure chamber, the installation site of the water pipe A installation position than water pipe B
Put high 15-20cm.
8. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
In rapid S5, concrete used is 150 or No. 200 concrete.
9. a kind of method of construction of water system Natural Circulation methane-generating pit according to claim 1 is it is characterised in that described step
In rapid S7, the top cover of water pressure chamber is cladded with safety glass by solar heat-collection plate and constitutes, and area is 0.5-1m2.
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