CN107418881A - A kind of methane-generating pit heating system and method - Google Patents
A kind of methane-generating pit heating system and method Download PDFInfo
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- CN107418881A CN107418881A CN201710822201.3A CN201710822201A CN107418881A CN 107418881 A CN107418881 A CN 107418881A CN 201710822201 A CN201710822201 A CN 201710822201A CN 107418881 A CN107418881 A CN 107418881A
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- 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
- 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
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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
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/48—Automatic or computerized control
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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
- C12M43/00—Combinations of bioreactors or fermenters with other apparatus
- C12M43/04—Bioreactors or fermenters combined with combustion devices or plants, e.g. for carbon dioxide removal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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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
- F24H1/18—Water-storage heaters
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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
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
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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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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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
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Abstract
The invention discloses a kind of methane-generating pit heating system and method, and it solves the deficiency of winter methane tank gas production rate in the prior art, have in methane-generating pit gas production it is high, being capable of monitoring real-time to methane-generating pit and intermittent-heating, the effect for meeting winter heating demand；Its technical scheme is：Including heater and methane-generating pit, the inside of the methane-generating pit is provided with set of heat exchange tubes, the arrival end of the set of heat exchange tubes is connected by water inlet pipe with the water inlet of heater, the port of export of the set of heat exchange tubes is connected by return pipe with the delivery port of heater, and heat is reached methane-generating pit by the recirculated water of heated device heating by set of heat exchange tubes；The inside of the methane-generating pit is provided with thermocouple temperature sensor, and the thermocouple temperature sensor is connected with temperature controller, and the temperature signal in methane-generating pit is fed back to temperature controller by thermocouple temperature sensor, and methane-generating pit internal temperature is monitored in real time.
Description
Technical field
The present invention relates to biogas heating technology field, more particularly to a kind of methane-generating pit heating system and method.
Background technology
With China's expanding economy, the progress of society, life of urban resident is further improved, but urban residents
Life still suffers from many problems.This rural ecological mode of agriculture that will seek development, improve rural environment.Wherein comprehensively utilize
Methane-generating pit is exactly an important channel for changing rural environment.Building a methane-generating pit can use 20 years or so, comprehensive utilization
Good methane-generating pit can not only save the energy, improvement and environmental protection, also save chemical fertilizer and agricultural chemicals, improve crops yield and
Many benefits such as quality, promotion and the development of drive animal husbandry.
Villages and small towns winter utilizes biogas heating technology, can effectively reduce coal usage amount, and there is abundant biomass energy in rural area, and
Biomass belongs to regenerative resource, and biogas is obtained using biomass by building methane-generating pit, is to solve current rural area to heating
One direction of demand.The life comfortableness of urban residents can be not only effectively improved, reduces the use of rural area soil heating, and
And the sustainable use to resource can be accomplished.But it is rural area is heated using biogas one big that winter methane tank gas production rate is low
Problem.
In summary, in the prior art for how to improve winter methane tank gas production rate the problem of, still lack effective solution
Certainly scheme.
The content of the invention
For overcome the deficiencies in the prior art, the invention provides a kind of methane-generating pit heating system and method, it has natural pond
In gas pond gas production it is high, being capable of monitoring real-time to methane-generating pit and intermittent-heating, the effect for meeting winter heating demand.
A kind of methane-generating pit heating system, including heater and methane-generating pit, the inside of the methane-generating pit are provided with set of heat exchange tubes, institute
The arrival end for stating set of heat exchange tubes is connected by water inlet pipe with the water inlet of heater, and the port of export of the set of heat exchange tubes passes through backwater
Pipe is connected with the delivery port of heater, and heat is reached methane-generating pit by the recirculated water of heated device heating by set of heat exchange tubes；
The inside of the methane-generating pit is provided with thermocouple temperature sensor, the thermocouple temperature sensor and temperature controller
It is connected, the temperature signal in methane-generating pit is fed back to temperature controller by thermocouple temperature sensor, real to methane-generating pit internal temperature
When monitor.
Further, the water inlet pipe is provided with temperature-sensing valve.
Further, one end on the return pipe close to heater is provided with heat-exchanger pump, is provided with close to one end of methane-generating pit
Temperature-sensing valve；Fire resisting damper is provided between the heat-exchanger pump and temperature-sensing valve.
Further, the set of heat exchange tubes includes interconnected inner ring heat exchanger tube and outer ring heat exchanger tube, and the inner ring changes
Hot device is located at the center of methane-generating pit, and the outer ring heat exchanger tube is on the inwall of methane-generating pit.
Further, the inner ring heat exchanger tube uses immersion heat exchange tube structure, and the outer ring heat exchanger tube uses helical form
Structure.
Further, the inside of the methane-generating pit is provided with the base support for being used for supporting set of heat exchange tubes, the base support
Rectangle network structure is formed by more reinforcing bars.
Further, the top of the base support is provided with multiple longitudinal carriers vertical with base support, the inner ring
Heat exchanger is fixed on the outside of longitudinal carrier.
Further, the outside of the methane-generating pit is provided with heat-insulation layer, reduces the thermal loss of methane-generating pit.
Further, the heating tube group is managed using PE-RT, has good stability and long-term pressure-resistant performance.
A kind of heating method of methane-generating pit heating system, comprises the following steps：
Step 1：Heater is installed on interior, methane-generating pit is arranged at outdoor, methane-generating pit connection heating stove；
Step 2：When temperature controller shows that temperature is less than design temperature in methane-generating pit, start heater and heat-exchanger pump,
The heating stablized to set of heat exchange tubes in methane-generating pit；When temperature controller shows that temperature is higher than design temperature in methane-generating pit,
Heater and heat-exchanger pump are closed, stops heating, and continues to be monitored temperature in methane-generating pit, realizes and methane-generating pit interval is added
Heat.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) temperature signal is fed back to temperature control by the present invention by the way of automatically controlling by thermocouple temperature sensor
Device processed, the temperature in methane-generating pit is monitored in real time, intermittent-heating is implemented to methane-generating pit, keeps the medium temperature ring in methane-generating pit
Border, ensure zymogenic preference temperature environment in methane-generating pit, improve gas production；
(2) present invention sets inner ring heat exchanger tube and outer ring heat exchanger tube in methane-generating pit, ensures methane-generating pit from the central position extremely
Surrounding can be heated uniformly；And heat-insulation layer is set on the outside of methane-generating pit, reduce thermal loss in methane-generating pit；
(3) present invention ensure that the gas production of winter methane-generating pit with low ebb electric-heating water, and heating stove is connected by methane-generating pit
Deng device, and then meet the heating problem of winter rural area ordinary residence, new selection is provided to winter heating mode, is advantageous to
Improve environmental problem, administer haze phenomenon, the utilization to promote new energy have very big power-assisted.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is the structured flowchart of the present invention；
Fig. 2 is the top view of the methane-generating pit heat exchanger of the present invention；
Fig. 3 is the installation top view of the methane-generating pit heat exchanger of the present invention；
Fig. 4 is the A-A sectional views of the methane-generating pit heat exchanger of the present invention；
Wherein, 1- heaters, 2- methane-generating pits, 3- inner ring heat exchanger tubes, 4- heat-exchanger pumps, 5- temperature-sensing valves, 6- fire resisting dampers, 7- temperature
Controller, 8- thermocouple temperature sensors, 9- base supports, 10- water inlet pipes, 11- return pipes, 12- longitudinal carriers, 13- outer rings
Heat exchanger tube.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, the deficiency that winter methane tank gas production rate in the prior art be present, in order to solve such as
On technical problem, present applicant proposes a kind of methane-generating pit heating system and method.
In a kind of typical embodiment of the application, as Figure 1-Figure 4, there is provided a kind of methane-generating pit heating system,
Including heater 1, methane-generating pit 2 and heating stove, the side connection having heaters 1 of methane-generating pit 2, opposite side is connected with heating stove.
The inside of the methane-generating pit 2 is provided with set of heat exchange tubes, and the arrival end of the set of heat exchange tubes passes through water inlet pipe 10 and heating
The water inlet of device 1 is connected, and the port of export of the set of heat exchange tubes is connected by return pipe 11 with the delivery port of heater 1, heated
Heat is reached methane-generating pit 2 by the recirculated water that device 1 heats by set of heat exchange tubes.
The water inlet pipe 10 is provided with temperature-sensing valve 5, and one end on the return pipe 11 close to heater 1 is provided with heat-exchanger pump 4,
One end on the return pipe 11 close to methane-generating pit 2 is provided with temperature-sensing valve 5；Fire resisting damper is provided between the heat-exchanger pump 4 and temperature-sensing valve 5
6。
The inside of the methane-generating pit 2 is provided with thermocouple temperature sensor 8, the thermocouple temperature sensor 8 and temperature control
Device 7 processed is connected, and temperature controller 7 is located at the outside of methane-generating pit 2, and thermocouple temperature sensor 8 is by the temperature signal in methane-generating pit 2
Temperature controller 8 is fed back to, the internal temperature of methane-generating pit 2 is monitored in real time.
The set of heat exchange tubes includes interconnected inner ring heat exchanger tube 3 and outer ring heat exchanger tube 13, and the inner ring heat exchanger 3 is set
In the center of methane-generating pit 2, the outer ring heat exchanger tube 13 is on the inwall of methane-generating pit 2.
The inner ring heat exchanger tube 3 uses immersion heat exchanger structure, i.e. heat exchanger tube in the shape of a spiral.
The inside of the methane-generating pit 2 is provided with the base support 9 for being used for supporting set of heat exchange tubes, and the base support 9 is by more
Reinforcing bar forms rectangle network structure.
The top of the base support 9 is provided with multiple longitudinal carriers 12 vertical with base support 9, the inner ring heat exchanger tube
3 are fixed on the outside of longitudinal carrier 12.
The outside of the methane-generating pit 2 is provided with heat-insulation layer, to reduce the thermal loss in methane-generating pit 2.
The heating tube group is managed using PE-RT, has good stability and long-term pressure-resistant performance.
The heater 1 is that electric heater or solar water heater etc. can be as the equipment of thermal source.
Using methane-generating pit heating system when, heater 1 is installed on interior, methane-generating pit 2 is arranged at outdoor, methane-generating pit 2
Connect heating stove；When temperature controller 8 shows that temperature is less than design temperature in methane-generating pit 2, start heater 1 and heat-exchanger pump 4,
The heating stablized to set of heat exchange tubes in methane-generating pit 2；When temperature controller 8 shows that temperature is higher than design temperature in methane-generating pit 2
When, heater 1 and heat-exchanger pump 4 are closed, stops heating, and continue to be monitored temperature in methane-generating pit 2, realize to methane-generating pit 2
Intermittent-heating.
In the another embodiment of the application, using Jinan Area as research background, heating area is set as 70m2Village
Town energy-conservation lives building, and Heating Period mean heat flux is 20W/m2, i.e., per day Heating Load is 1400W, according to the building
The calorific value 22000KJ/m of thermic load value and biogas3Understand, required gas production is 5.5m daily3.It is zymogenic during according to medium temperature
Performance calculate needed for the volume of methane-generating pit 2 be 7.7m3, therefore, with 8m3Cylinder methane-generating pit is research object.
The outside of methane-generating pit 2 is provided with extruded sheet, for external thermal insulation.Biogas slurry volume about 7m in methane-generating pit 23, gas storage volume is about
1m3.Biogas slurry is taken as 1 using cow dung and the mixture of water, mass ratio:12, i.e. cow dung quality accounting is 7.7%, and biodiversity accounts for
Than being 1.5kJ/ (kg DEG C) for the specific heat of 92.3%, ox argol, therefore the thermal capacitance 3.82kJ/ (kg of biogas slurry used in methane-generating pit
k).Similarly, can be calculated using the gross mass to feed intake and cumulative volume, the density of biogas slurry used is 952kg/m3。
Calculate constant specific heat and after density, because the depth of methane-generating pit is shallower, the soil moisture is very nearly the same with air themperature, therefore
The soil moisture takes and calculates -5.3 DEG C of temperature outside the winter room of Jinan Area.It can be calculated on this condition, biogas slurry reduces by 2 DEG C, radiating
Measure about 52716kJ.
8m is can be calculated by above-mentioned3Methane-generating pit in January average load about 200W, so as to draw, methane-generating pit is about
Normal gas producing amount can be ensured by being not required to heating within 3 days.
Consideration is heated using night dip electricity price to methane-generating pit 2, temperature is risen to 35 DEG C, during heating
Between be set as 12h, by can be calculated, the power of heater 1, which need to reach 1420.3W, can meet to require.And by calculating, to expire
This heating requirements of foot, it is necessary to the length of PE-RT pipes be about 23.3m.
The ring spacing of helical form inner ring heat exchanger tube 3 is arranged to 250mm, and water velocity takes 0.6m/s in inner ring heat exchanger tube 3,
Water force can obtain the bore 12mm of inner ring heat exchanger tube 3, therefore inner ring heat exchanger tube 3 is managed from De16 PE-RT.
As shown in figure 4, the height that the reinforcing bar of the height erection Φ 10 away from ground 200mm is made in methane-generating pit is 200mm,
Spacing is the netted chassis overhang of 300mm rectangle, and set of heat exchange tubes is fixed on to the top of chassis overhang, and apart from methane-generating pit
The steel bar column that center 250mm four positions set 4 a height of 1000mm respectively, internal diameter is Φ 10, section is surrounded as square
Longitudinal carrier.
Outer ring heat exchanger tube is laid by 250mm, spiral form of spacing on methane-generating pit internal face, is up to apart from methane-generating pit
Tank base 950mm height.Immersion heat exchange of heat pipe is formed using spiralling laying form 4 steel bar column positions,
As inner ring heat exchanger tube, biogas slurry is entered by bottom to center to surrounding in methane-generating pit by inner ring heat exchanger tube and outer ring heat exchanger tube
Row heating.
Set of heat exchange tubes thermal source in methane-generating pit comes from heater 1, and heater 1 is installed on interior, and methane-generating pit 2 build house court in
The courtyard corner of positive side, allows it fully to obtain sunlight, and to reduce the load of methane-generating pit 2, caused biogas leads to heating
Stove, hot water is produced by combustion heat-exchange, by hot water supply user, so as to meet needs of user's winter to heating.
When the controller 7 of thermocouple 8 shows that temperature needs heating less than control temperature in methane-generating pit 2, then system will be
Voluntarily start heater 1 and heat-exchanger pump 4, the heating that heat exchanging device is stablized during trough-electricity；When controller 7 shows methane-generating pit
When the full set temperature standard of temperature is not required to heating in 2, system will voluntarily close heater 1 and heat-exchanger pump 4, stop heat exchanging
The heating of device, and continue to be monitored temperature in methane-generating pit.
The operational mode of intermittent-heating methane-generating pit 1 is used in terms of control strategy.Add as shown in Fig. 2 methane-generating pit thermal source comes from
Hot device 1, when biogas slurry temperature is less than 33 DEG C in methane-generating pit, signal feeds back to temperature controller 7, starts heater 1 and heats, starts
Heat-exchanger pump 4, hot water enter set of heat exchange tubes heating methane tank 2, when biogas slurry temperature reaches 35 DEG C, stop the heating to methane-generating pit 2,
Heater 1 and heat-exchanger pump 4 are closed in the control of temperature controller 7, realize the intermittent-heating to methane-generating pit.
Run by the way of automatically controlling, temperature signal is fed back to temperature controller by thermocouple temperature sensor, right
Temperature in methane-generating pit is monitored in real time.Because the decay of temperature has delay, therefore still need to when less than 33 DEG C certain
Time, when temperature will reach 33 DEG C or have arrived at 33 DEG C in methane-generating pit, in time using trough-electricity, followed using heater heating
Ring water, heat is reached by water inlet pipe and set of heat exchange tubes by methane-generating pit, methane-generating pit temperature stabilization is risen to 35 DEG C, keep biogas
Medium temperature environment in pond, ensure zymogenic suitable biogas environment in methane-generating pit, improve gas production.When the temperature in fermentation vat
When starting to reach 35 DEG C of design temperature, temperature controller is fed back signal to by thermocouple temperature sensor, so as to close circulating pump
And heater, stop the heating to methane-generating pit.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of methane-generating pit heating system, it is characterised in that including heater and methane-generating pit, the inside of the methane-generating pit, which is provided with, to be changed
Heat pipe heat, the arrival end of the set of heat exchange tubes are connected by water inlet pipe with the water inlet of heater, the outlet of the set of heat exchange tubes
End is connected by return pipe with the delivery port of heater, and heat is reached natural pond by the recirculated water of heated device heating by set of heat exchange tubes
Gas pond；
The inside of the methane-generating pit is provided with thermocouple temperature sensor, the thermocouple temperature sensor and temperature controller phase
Even, the temperature signal in methane-generating pit is fed back to temperature controller by thermocouple temperature sensor, real-time to methane-generating pit internal temperature
Monitoring.
2. a kind of methane-generating pit heating system according to claim 1, it is characterised in that the water inlet pipe is provided with temperature control
Valve.
3. a kind of methane-generating pit heating system according to claim 1, it is characterised in that close to heater on the return pipe
One end be provided with heat-exchanger pump, be provided with temperature-sensing valve close to one end of methane-generating pit；Fire resisting damper is provided between the heat-exchanger pump and temperature-sensing valve.
4. a kind of methane-generating pit heating system according to claim 1, it is characterised in that the set of heat exchange tubes includes mutually interconnecting
Logical inner ring heat exchanger tube and outer ring heat exchanger tube, the inner ring heat exchanger are located at the center of methane-generating pit, the outer ring heat exchanger tube
On the inwall of methane-generating pit.
5. a kind of methane-generating pit heating system according to claim 4, it is characterised in that the inner ring heat exchanger tube, which uses, to be immersed
Formula heat exchange tube structure.
6. a kind of methane-generating pit heating system according to claim 1, it is characterised in that the inside of the methane-generating pit, which is provided with, to be used
In the base support of support set of heat exchange tubes, the base support forms rectangle network structure by more reinforcing bars.
A kind of 7. methane-generating pit heating system according to claim 4 or 6, it is characterised in that the top of the base support
Provided with multiple longitudinal carriers vertical with base support, the inner ring heat exchanger is fixed on the outside of longitudinal carrier.
8. a kind of methane-generating pit heating system according to claim 1, it is characterised in that the outside of the methane-generating pit, which is provided with, to be protected
Warm layer.
9. a kind of methane-generating pit heating system according to claim 1, it is characterised in that the heating tube group uses PE-RT
Pipe.
10. according to a kind of heating method of any described methane-generating pit heating systems of claim 1-9, it is characterised in that including
Following steps：
Step 1：Heater is installed on interior, methane-generating pit is arranged at outdoor, methane-generating pit connection heating stove；
Step 2：When temperature controller shows that temperature is less than design temperature in methane-generating pit, start heater and heat-exchanger pump, to natural pond
The heating that set of heat exchange tubes is stablized in gas pond；When temperature controller shows that temperature is higher than design temperature in methane-generating pit, close
Heater and heat-exchanger pump, stop heating, and continue to be monitored temperature in methane-generating pit, realize to methane-generating pit intermittent-heating.
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| CN201710822201.3A CN107418881A (en) | 2017-09-13 | 2017-09-13 | A kind of methane-generating pit heating system and method |
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| CN201710822201.3A CN107418881A (en) | 2017-09-13 | 2017-09-13 | A kind of methane-generating pit heating system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317716A (en) * | 2019-07-25 | 2019-10-11 | 曹国鑫 | A kind of liquid methane-generating pit heating system |
| WO2021001716A1 (en) * | 2019-06-29 | 2021-01-07 | Mehta Alpesh | An automated anaerobic digester |
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| GB1425508A (en) * | 1973-03-02 | 1976-02-18 | Brosenius K H | Heating system for single dwelling houses |
| CN201183793Y (en) * | 2008-03-05 | 2009-01-21 | 吉林建筑工程学院 | Methane boiler heating methane tank |
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| GB1425508A (en) * | 1973-03-02 | 1976-02-18 | Brosenius K H | Heating system for single dwelling houses |
| CN201183793Y (en) * | 2008-03-05 | 2009-01-21 | 吉林建筑工程学院 | Methane boiler heating methane tank |
| CN202786232U (en) * | 2012-09-10 | 2013-03-13 | 昆明理工大学 | Solar warming biogas-generating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021001716A1 (en) * | 2019-06-29 | 2021-01-07 | Mehta Alpesh | An automated anaerobic digester |
| CN110317716A (en) * | 2019-07-25 | 2019-10-11 | 曹国鑫 | A kind of liquid methane-generating pit heating system |
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