CN106369814A - Marsh gas heat supply system - Google Patents
Marsh gas heat supply system Download PDFInfo
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- CN106369814A CN106369814A CN201610767015.XA CN201610767015A CN106369814A CN 106369814 A CN106369814 A CN 106369814A CN 201610767015 A CN201610767015 A CN 201610767015A CN 106369814 A CN106369814 A CN 106369814A
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- Prior art keywords
- gas
- biogas
- methane
- concentrator bowl
- generating pit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/002—Gaseous fuel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention provides a marsh gas heat supply system which comprises a march gas tank, a gas pipe, a gas boiler, a heat supply pipe and a march gas dehydration device, wherein the gas pipe communicates with the marsh gas tank and the gas boiler, so that marsh gas in the marsh gas tank can be led into a combustion chamber of the gas boiler for combustion; the gas boiler comprises a hot water cavity; the heat supply pipe communicates with the hot water cavity and penetrates through an indoor room of a user; the marsh gas dehydration device comprises a gas inlet pipe, a gas outlet pipe, a centrifugal cylinder and an external rotor centrifugal blower; the external rotor centrifugal blower is arranged at the top of an inner cavity of the centrifugal cylinder; one end of the gas inlet pipe penetrates into the inner cavity of the centrifugal cylinder; the gas outlet pipe penetrates through the top end of the centrifugal cylinder and goes deep into the inner cavity of the centrifugal cylinder; the top end of the centrifugal cylinder is enclosed; a drainage hole is formed in the bottom end of the centrifugal cylinder; the distance between the penetrating end of the gas outlet pipe and the drainage hole is smaller than that between the penetrating end of the gas inlet pipe and the drainage hole; the end port, positioned outside the centrifugal cylinder, of the gas outlet pipe communicates with the combustion chamber; and the end port, positioned outside the centrifugal cylinder, of the gas inlet pipe communicates with the marsh gas tank. The above marsh gas heat supply system can supply heat for farmers more efficiently.
Description
Technical field
The present invention relates to heating technology field, more particularly, to a kind of biogas heating system.
Background technology
In short supply with global energy, resource increasingly depleted, tapping a new source of energy is the Main way of current development.Open at present
Sending out the energy with stronger dynamics includes wind energy, bioenergy etc., and wherein producing biogas using bioenergy is to apply more extensive field
One of.Biogas is that organic substance forms imflammable gas through a series of fermentations of microorganism, under anaerobic daily
In life, the various life such as human and animal excreta, straw, sewage, agricultural production rubbish all can be in the methane-generating pits of sealing, anaerobism bar
Part bottom fermentation and form methane.Raw material due to producing biogas is commonplace, therefore in remote area, such as pastoral area, sea
The place of the scarcity of resources such as robber, remote mountain area all can be by the use of biogas as the energy.Rural area has substantial amounts of bio-energy resource to enter
The production of row biogas.
At present, Gas application is more prevalent in the life of people, and people are generated electricity with biogas, burn.We
Know, the biological raw material in rural area is abundanter, such as substantial amounts of straw, human and animal excreta, mountain area growth produced by agricultural production
A large amount of weeds etc., these resources are made full use of to produce biogas, are generated electricity using biogas, the good side that can yet be regarded as of burning
Formula, not only can reduce these areas and consume the pollution to environment for the fossil energy to consuming of fossil energy moreover it is possible to reduce.
With the development of biogas utilization technology, generally marsh gas power generation project in current rural area, to realize supplying on the spot
Electricity, and then make up electricity shortage during peak of power consumption.But, the policy such as the Devoting Major Efforts To Developing with wind-powered electricity generation and national west-to-east power transmission
Greatly develop, the existing surplus of power supply in rural area, it reduce the developing wish of biogas power generation technology.But, biogas is in its other party
Face to be developed using still having.It is known that biogas is imflammable gas, has the advantages that caloric value is high, it is low to pollute, utilize
Biogas combustion heats, a preferable developing direction of can yet be regarded as.Because rural area heating system is immature, not just like city
The same powerful heating network, therefore, realizes using biogas combustion to the heating of peasant household being that current developing is important
How direction, carry out highly effective heating using biogas combustion for peasant household it would be highly desirable to solve in cold winter.
Content of the invention
It is an object of the invention to provide a kind of biogas heating system, to gather materials on the spot as remote using biogas combustion technology
Farmers in mountain area is implemented individually to heat.
To achieve these goals, the following technical scheme of present invention offer:
A kind of biogas heating system, including methane-generating pit, gas pipeline, gas fired-boiler, hot duct and dehydration device of methane；
Wherein；
Described gas pipeline connects described methane-generating pit and described gas fired-boiler, for introducing the biogas in described methane-generating pit
The burning Indoor Combustion of described gas fired-boiler；Described gas fired-boiler has hot-water cavity, and described hot duct connects described hot-water cavity,
And pass through the interior of user；
Described dehydration device of methane includes air inlet pipe, escape pipe, concentrator bowl and outer-rotor centrifugal fan；Described outer rotor from
Heart-wind syndrome machine is arranged on the top of the inner chamber of concentrator bowl；One end of described air inlet pipe penetrates the inner chamber of described concentrator bowl；Described give vent to anger
Pipe is through the top of described concentrator bowl, and gos deep in described inner chamber；Described top is blind end；The bottom of described concentrator bowl has
Osculum；The distance away from described osculum for the penetrating end of described escape pipe is less than the penetrating end of described air inlet pipe away from described osculum
Distance；Described escape pipe and described air inlet pipe are laid in the both sides of described outer-rotor centrifugal fan respectively；Described escape pipe position
Port outside described concentrator bowl and the combustion chamber of described gas fired-boiler；Described air inlet pipe is located at outside described concentrator bowl
Port connect with described methane-generating pit.
Further, also include biogas quantity regulating device；Described biogas quantity regulating device includes baroceptor, gas storage
Tank, flow valve and the first controller；Wherein:
Described baroceptor is arranged in described methane-generating pit, for detecting the biogas pressure in methane-generating pit；Described gas storage
Tank is connected with described methane-generating pit by the gas storage pipeline arranged side by side with described gas pipeline；Described flow valve is arranged on described cylinder
Road and described gas pipeline are to realize both biogas shunt ratios；
Described first controller is all connected with baroceptor and described flow valve, and the detection in described baroceptor
When value is more than high-order warning value, controls described flow valve to increase the flow of described gas storage pipeline, reach in described baroceptor
During the warning value of status, described flow valve is controlled to close described gas storage pipeline.
Further, be provided with discharging controlling device in described methane-generating pit, described discharging controlling device include converting unit,
Discharging pump and second controller；Described converting unit is connected with described baroceptor, for being converted into described biogas pressure
The gas production of described methane-generating pit；Described second controller is all connected with described discharging pump and described converting unit, and in described product
When tolerance reaches predetermined threshold value, described discharging pump is controlled to pump out the biogas slurry in described methane-generating pit.
Further, the penetrating end of described air inlet pipe penetrates in described inner chamber from the middle part of described concentrator bowl, and towards institute
State the top of concentrator bowl.
Further, described concentrator bowl is conically shaped, and the cross-sectional area on its top is more than the cross-sectional area of its bottom；Institute
State the cone position that osculum is located at described concentrator bowl；The inwall of described concentrator bowl is equipped with spiral guiding gutter, described spiral
Formula guiding gutter extends from the top of described concentrator bowl to described osculum.
Further, it is provided with water leg below described osculum, described water leg passes through aqueduct and described hot-water cavity
Bottom connection；It is provided with drainage pump, described drainage pump is used for being transported to the hydrops in described water leg in described aqueduct
Described hot water intracavity.
Further, described hot duct is partially around the outer wall of described methane-generating pit.
Further, the exhaust end of described gas pipeline is provided with safety device, described safety device include inlet suction port,
Air outlet adapter and fire-retardant chamber；Wherein:
Described inlet suction port is connected with the exhaust end of described gas pipeline；Described fire-retardant intracavity is provided with fire proofing, institute
Stating fire proofing is pore structure, and described inlet suction port passes through the gap structure of described fire proofing with described air outlet adapter even
Logical；Described air outlet adapter and the combustion chamber of described gas fired-boiler.
Further, described fire-retardant chamber is provided with circular cone and back-moving spring near one end of described inlet suction port；Wherein:
Described inlet suction port is provided with taper air flue, described taper gas path cross sections amass less one end deviate from described fire-retardant
Chamber；Described circular cone and described taper air flue cooperation；Described back-moving spring is arranged on larger one of described circular cone cross-sectional area
To apply to make it be adjacent to being adjacent to of described taper air flue to described circular cone between end and the end face of connecting hole in described fire-retardant chamber
Power.
Further, described air outlet adapter passes through the cold water end of described hot-water cavity.
Operationally, the biogas producing in methane-generating pit enters and is dehydrated on gas pipeline the biogas heating system that the present invention provides
Device, specifically, enters in concentrator bowl by air inlet pipe, and the rotation of outer-rotor centrifugal fan can will go in concentrator bowl
Biogas makees centrifugal motion, and during motion, the hydrone weight in biogas is collided compared with the inwall of conference and concentrator bowl, and then
Can condense on the inwall of concentrator bowl, gradually condense the formation globule with hydrone, the globule on concentrator bowl inwall can be in weight
Enter osculum in the presence of power to be discharged, the biogas being separated from water to the flows of concentrator bowl, and then can enter escape pipe,
Enter eventually in gas fired-boiler and efficiently burnt, the burning of biogas can heat the hot-water cavity in gas fired-boiler, hot-water cavity
Interior hot water can pass through the indoor heating to peasant household for the hot duct.
Burnt again after dehydration device dehydration after above-mentioned biogas production, the efficiency of combustion of biogas can be improved, and then
Can more effectively heat hot water intracavity hot water, finally enable efficiently to heat.
Brief description
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to institute in embodiment
Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only the present invention described in one
A little embodiments, for those of ordinary skill in the art, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of structural representation of biogas heating system provided in an embodiment of the present invention；
Fig. 2 is the structural representation of dehydration device of methane provided in an embodiment of the present invention；
Fig. 3 is another kind of structural representation of biogas heating system provided in an embodiment of the present invention；
Fig. 4 is the yet another construction schematic diagram of biogas heating system provided in an embodiment of the present invention；
Fig. 5 is the structural representation of safety device provided in an embodiment of the present invention.
Specific embodiment
In order that those skilled in the art more fully understands technical scheme, below in conjunction with accompanying drawing to this
Bright it is further detailed.
Refer to Fig. 1, the embodiment of the present invention provides a kind of biogas heating system, this biogas heating system include methane-generating pit 1,
Gas pipeline 2, gas fired-boiler 3, hot duct 4 and dehydration device of methane 5.
Gas pipeline 2 is all connected with methane-generating pit 1 and gas fired-boiler 3, for the biogas in methane-generating pit 1 is introduced gas fired-boiler
Burning Indoor Combustion.Gas fired-boiler 3 has a hot-water cavity, and hot duct 4 connects hot-water cavity, and passes through the house of user, with to
Indoor heating.
Dehydration device of methane 5 is arranged on gas pipeline 2, de- for implementing to the biogas that will enter in gas fired-boiler 3
Water.It is known that being various biologic garbage, such as sewage, human and animal excreta etc. in methane-generating pit 1, produced in the case of fermentation
Biogas in contain moisture, in order to improve the efficiency of combustion of biogas, dehydration device of methane 5 is to will enter in gas fired-boiler 3
Biogas carries out processed.
Incorporated by reference to reference to Fig. 2, dehydration device of methane 5 includes air inlet pipe 51, escape pipe 52, concentrator bowl 53 and outer rotor centrifugation
Blower fan 54.
Outer-rotor centrifugal fan 54 is arranged on the top of the inner chamber of concentrator bowl 53；One end of air inlet pipe penetrates concentrator bowl 53
Inner chamber；Escape pipe 52 passes through the top of concentrator bowl 53, and gos deep in the inner chamber of concentrator bowl 53；The top of concentrator bowl 53 is closing
End；The bottom of concentrator bowl 53 has osculum 531；The distance away from osculum 531 for the penetrating end of escape pipe 52 is less than air inlet pipe 51
The distance away from osculum 531 for the penetrating end；Escape pipe 52 and air inlet pipe 51 are laid in the both sides of outer-rotor centrifugal fan 54 respectively；
Escape pipe 52 is located at the port in concentrator bowl 53 outside and the combustion chamber of gas fired-boiler 3；Air inlet pipe 51 is located at outside concentrator bowl 53
The port in portion is connected with methane-generating pit 1.
Operationally, the biogas producing in methane-generating pit 1 enters Gas Pipe to biogas heating system provided in an embodiment of the present invention
Dehydration device of methane 5 on road 2, specifically, enters in concentrator bowl 53 by air inlet pipe 51, outer-rotor centrifugal fan 54 turn
The dynamic biogas that can will go in concentrator bowl 53 makees centrifugal motion, and during motion, the hydrone weight in biogas is larger
With the collision of the inwall of concentrator bowl 53, and then can condense on the inwall of concentrator bowl 53, gradually condense formation with hydrone
The globule, the globule on concentrator bowl 53 inwall can enter osculum 531 under gravity and be discharged, the biogas meeting being separated from water
To the flows of concentrator bowl 53, and then enter escape pipe 52, enter eventually in gas fired-boiler 3 and efficiently burnt, natural pond
The burning of gas can heat the hot-water cavity in gas fired-boiler 3, and the hot water of hot water intracavity can pass through the interior confession to peasant household for the hot duct 4
Warm.
Burnt again after dehydration device of methane 5 dehydration after above-mentioned biogas production, the efficiency of combustion of biogas can be improved,
And then can more effectively heat hot water intracavity hot water, finally enable efficiently to heat.
In dehydration device of methane 5 disclosed in the present embodiment, the penetrating end of escape pipe 52 distance away from osculum 531 be less than into
The distance away from osculum 531 for the penetrating end of trachea 51, can be relatively so that when the biogas after dehydration flows to the bottom of concentrator bowl 53
For efficiently entering escape pipe 52 so that biogas has enough centrifugal motions, just enter after reaching preferable dehydrating effect and give vent to anger
Be discharged in pipe 52, through dehydration biogas also be not up to osculum 531, you can by escape pipe 52 defeated walk.
Referring again to Fig. 2 it is preferred that the penetrating end of air inlet pipe 51 penetrates in concentrator bowl 53 from the middle part of concentrator bowl 53
In chamber, and the top towards concentrator bowl 53, and then the biogas entering in concentrator bowl 53 is flowed to after concentrator bowl 53 top again
Towards the bottom flowing of concentrator bowl 53, in this flow process, the centrifugal effect of biogas can be increased so that dehydration is more thorough.
Concentrator bowl 53 can be conically shaped, and the cross-sectional area on its top is more than the cross-sectional area of its bottom, osculum 531
Positioned at the cone position of concentrator bowl, the inwall of concentrator bowl 53 is equipped with spiral guiding gutter 532, spiral guiding gutter 532 from from
The top of heart cylinder 53 extends to osculum 531, and spiral guiding gutter 532 can collect more moisture, and after moisture accumulation, weight increases
Plus very fast, and then osculum 531 can be flowed to quickly, reach the purpose of Quick drainage, improve drainage efficiency.
In the scheme optimizing further, below osculum 531, it is provided with water leg, water leg passes through aqueduct and described heat
The bottom connection of water cavity；It is provided with drainage pump, drainage pump is used for for the hydrops in water leg being transported to hot water intracavity in aqueduct,
As heating medium, reach and collect the purpose recycling.
During heating, methane-generating pit 1 gas production under conditions of different periods, difference is different, when gas production relatively
Unnecessary biogas can be led to produce when big, considerably beyond the demand of heating, for this reason, refer to Fig. 3, the embodiment of the present invention is open
Biogas heating system also include biogas quantity regulating device.This biogas quantity regulating device include baroceptor 11, air accumulator 12,
Flow valve 13 and the first controller 14.
Wherein: baroceptor 11 is arranged in methane-generating pit 1, for detecting the biogas pressure in methane-generating pit 1；Air accumulator 12
It is connected with described methane-generating pit 1 by the gas storage pipeline 15 arranged side by side with gas pipeline 2；Flow valve 13 is arranged on gas storage pipeline 15 and combustion
Feed channel 2 is to realize both biogas shunt ratios；First controller 14 is all connected with baroceptor 11 and flow valve 13, and
When the detected value of baroceptor 11 is more than high-order warning value, flow valve 13 is controlled to increase the flow of gas storage pipeline 15, in air pressure
When sensor 11 reaches low level warning value, flow valve 13 is controlled to close gas storage pipeline 15.
Detect that the air pressure in methane-generating pit 1 judges the gas production in methane-generating pit 1 by baroceptor 11 in such scheme
(air pressure in methane-generating pit 1 is directly proportional to gas production), and control the distribution of biogas according to air pressure testing result, in gas production relatively
Gao Shi, the first controller 14 can control flow valve 13 to reach the purpose of biogas storage.
Methane-generating pit 1, during fermentation, generally to judge by the way of manual observation fermentation raw material in pond whether
Make full use of, need to change biogas slurry after having made full use of, now generally adopt the equipment such as fecal suction truck to extract out in methane-generating pit 1
Waste material.Whether the fermentation raw material in artificial judgment methane-generating pit ferments the experience of placing one's entire reliance upon, and this has the feelings of artificial error in judgement
Condition, ultimately results in and judges inaccurate, and then waste material can be led to change not in time or change too early situation occur, change not in time
Will result directly in later stage aerogenesis deficiency so that overall gas output is discontinuously unbalanced, impact user uses；Replacement frequency is too high,
Then in pond, fermentation raw material cannot make full use of, and leads to fermentation raw material to waste.
In order to solve the above problems, in methane-generating pit 1, it is provided with discharging controlling device.Refer to Fig. 4, discharging controlling device bag
Include converting unit 16, discharging pump 17 and second controller 18.Converting unit 16 is connected with baroceptor 11, for by biogas pressure
Power is converted into the gas production of methane-generating pit 1；Second controller 18 is all connected with discharging pump 17 and converting unit 16, and reaches in gas production
During to predetermined threshold value, discharging pump 17 is controlled to go out the biogas slurry in described methane-generating pit 1 by waste material tube pump.
Fermentation raw material in methane-generating pit 1 needs suitable temperature to adjust its gas production, particularly in cold winter, room
Outer temperature is relatively low, and the methane-generating pit 1 being usually placed in outdoor may have because temperature is too low and affect asking of biogas output
Topic, for this reason, preferably, repave after the outer wall that hot duct 4 is partially around methane-generating pit 1 be set in house or, heating pad pipe
Heat to methane-generating pit 1 again to after house heat supply in road 4 (backwater position).
Biogas is passed through in gas fired-boiler 3 after gas pipeline 2 implements burning, in order to avoid burning in gas fired-boiler 3
The flame of room flashes back brought potential safety hazard along gas pipeline, and disclosed in the embodiment of the present invention, biogas heating system is acceptable
Including safety device, safety device is arranged on the exhaust end of gas pipeline 2.
Refer to Fig. 5, safety device includes inlet suction port 31, air outlet adapter 32 and fire-retardant chamber 33.Inlet suction port 31 and combustion
The exhaust end connection of feed channel 2；It is provided with fire proofing, fire proofing is pore structure, inlet suction port 32 leads in fire-retardant chamber 33
The gap structure crossing fire proofing is connected with air outlet adapter 32；Air outlet adapter 32 is towards the combustion chamber of gas fired-boiler 3.Biogas
It is discharged to burning interior from air outlet adapter 32 behind fire-retardant chamber 33 after entering inlet suction port 31, be provided with due in fire-retardant chamber 33
Fire proofing, therefore when biogas flashes back, fire proofing can stop in time, it is to avoid causes tempering further, play and more pacify
Full effect.
Referring again to Fig. 5, the inlet chamber of described inlet suction port 31 is provided with circular cone 34 and back-moving spring 35.Air inlet connecting
31 are provided with taper air flue 311, and the less one end of taper air flue 311 cross-sectional area deviates from fire-retardant chamber 33；Circular cone 34 and cone
Shape air flue 311 coordinates；Back-moving spring 35 is arranged on the connection nose end of the larger one end of circular cone 34 cross-sectional area and fire-retardant chamber 33
To apply to make what it was adjacent to taper air flue 311 to be adjacent to power to circular cone 34 between face.When gas pipeline 2 flashes back phenomenon,
Substantial amounts of steam can be produced in safety device, steam by fire-retardant chamber 33 realize first fire-retardant, be then passed through fire-retardant chamber 33 meeting
Circular cone 34 is promoted to be adjacent in taper air flue 311, back-moving spring 35 plays the effect of auxiliary, and then realizes inlet suction port 31
Closing, after disappearance when flashing back, enter into the biogas after inlet suction port 31 can overcome the elastic force of back-moving spring 35 and by circular cone 34
Pushing away the less one end of taper air flue 311 cross-sectional area, thus realizing opening of inlet suction port 31, realizing smoothly ventilating.Above-mentioned
Safety device can improve the safety of gas fired-boiler 3 burning.
In the present embodiment, air outlet adapter 32 functions only as discharging the function of biogas, and biogas temperature is too high to lead to biogas to return
Burn, for this reason, preferably, air outlet adapter 32 passes through the cold water end of the hot-water cavity of gas fired-boiler 3, by newly entering into hot water intracavity
Cold water implements the cooling to air outlet adapter 32.
The above some one exemplary embodiment only describing the present invention by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain, in the case of without departing from the spirit and scope of the present invention, can by with various different in the way of to institute
The embodiment of description is modified.Therefore, above-mentioned accompanying drawing and description are inherently illustrative, should not be construed as to the present invention
The restriction of claims.
Claims (10)
1. a kind of biogas heating system is it is characterised in that include methane-generating pit, gas pipeline, gas fired-boiler, hot duct and biogas
Dehydration device；Wherein；
Described gas pipeline connects described methane-generating pit and described gas fired-boiler, described for introducing the biogas in described methane-generating pit
The burning Indoor Combustion of gas fired-boiler；Described gas fired-boiler has hot-water cavity, and described hot duct connects described hot-water cavity, and wears
Cross the interior of user；
Described dehydration device of methane includes air inlet pipe, escape pipe, concentrator bowl and outer-rotor centrifugal fan；Described outer rotor is centrifuged wind
Machine is arranged on the top of the inner chamber of described concentrator bowl；One end of described air inlet pipe penetrates the inner chamber of described concentrator bowl；Described give vent to anger
Pipe is through the top of described concentrator bowl, and gos deep in described inner chamber；Described top is blind end；The bottom of described concentrator bowl has
Osculum；The distance away from described osculum for the penetrating end of described escape pipe is less than the penetrating end of described air inlet pipe away from described osculum
Distance；Described escape pipe and described air inlet pipe are laid in the both sides of described outer-rotor centrifugal fan respectively；Described escape pipe position
Port outside described concentrator bowl and the combustion chamber of described gas fired-boiler；Described air inlet pipe is located at outside described concentrator bowl
Port connect with described methane-generating pit.
2. biogas heating system according to claim 1 is it is characterised in that also include biogas quantity regulating device；Described natural pond
Air volume regulating device includes baroceptor, air accumulator, flow valve and the first controller；Wherein:
Described baroceptor is arranged in described methane-generating pit, for detecting the biogas pressure in methane-generating pit；Described air accumulator leads to
Cross the gas storage pipeline arranged side by side with described gas pipeline to be connected with described methane-generating pit；Described flow valve be arranged on described gas storage pipeline and
Described gas pipeline is to realize both biogas shunt ratios；
Described first controller is all connected with baroceptor and described flow valve, and big in the detected value of described baroceptor
When high-order warning value, control described flow valve to increase the flow of described gas storage pipeline, reach low level in described baroceptor
During warning value, described flow valve is controlled to close described gas storage pipeline.
3. biogas heating system according to claim 2 controls dress it is characterised in that being provided with discharging in described methane-generating pit
Put, described discharging controlling device includes converting unit, discharging pump and second controller；Described converting unit and described air pressure sensing
Device is connected, for described biogas pressure is converted into the gas production of described methane-generating pit；Described second controller and described discharging pump
All it is connected with described converting unit, and when described gas production reaches predetermined threshold value, control described discharging pump by described methane-generating pit
Interior biogas slurry pumps out.
4. biogas heating system according to claim 1 is it is characterised in that the penetrating end of described air inlet pipe is from described centrifugation
The middle part of cylinder penetrates in described inner chamber, and the top towards described concentrator bowl.
5. biogas heating system according to claim 5 is it is characterised in that described concentrator bowl is conically shaped, and its top
Cross-sectional area be more than its bottom cross-sectional area；Described osculum is located at the cone position of described concentrator bowl；Described concentrator bowl
Inwall be equipped with spiral guiding gutter, described spiral guiding gutter extends from the top of described concentrator bowl to described osculum.
6. biogas heating system according to claim 5 is it is characterised in that be provided with water leg below described osculum,
Described water leg is connected with the bottom of described hot-water cavity by aqueduct；It is provided with drainage pump in described aqueduct, described hydrophobic
Pump is used for for the hydrops in described water leg being transported to described hot water intracavity.
7. biogas heating system according to claim 1 is it is characterised in that described hot duct is partially around described natural pond
The outer wall in gas pond.
8. biogas heating system according to claim 1 is it is characterised in that the exhaust end of described gas pipeline is provided with peace
Full device, described safety device includes inlet suction port, air outlet adapter and fire-retardant chamber；Wherein:
Described inlet suction port is connected with the exhaust end of described gas pipeline；Described fire-retardant intracavity is provided with fire proofing, described resistance
Combustible material is pore structure, and described inlet suction port is connected with described air outlet adapter by the gap structure of described fire proofing；Institute
State the combustion chamber of air outlet adapter and described gas fired-boiler.
9. biogas heating system according to claim 8 is it is characterised in that described fire-retardant chamber is near described inlet suction port
One end is provided with circular cone and back-moving spring；Wherein:
Described inlet suction port is provided with taper air flue, and described taper gas path cross sections amass less one end and deviate from described fire-retardant chamber；
Described circular cone and described taper air flue cooperation；Described back-moving spring be arranged on the larger one end of described circular cone cross-sectional area with
To apply to make what it was adjacent to described taper air flue to be adjacent to power to described circular cone between the end face of connecting hole in described fire-retardant chamber.
10. biogas heating system according to claim 9 is it is characterised in that described air outlet adapter passes through described hot-water cavity
Cold water end.
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| CN108916976A (en) * | 2018-05-28 | 2018-11-30 | 郑州源冉生物技术有限公司 | A kind of biogas combustion heating installation |
| CN109867424A (en) * | 2019-03-27 | 2019-06-11 | 中节能城市节能研究院有限公司 | A kind of odorless type septic tank and biogas auxiliary combustion utilize system |
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| CN106369814B (en) | 2019-10-22 |
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