CN204058454U - Biogas engineering novel waste heat utilization system - Google Patents
Biogas engineering novel waste heat utilization system Download PDFInfo
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- CN204058454U CN204058454U CN201420529480.6U CN201420529480U CN204058454U CN 204058454 U CN204058454 U CN 204058454U CN 201420529480 U CN201420529480 U CN 201420529480U CN 204058454 U CN204058454 U CN 204058454U
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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
A kind of biogas engineering novel waste heat utilization system, described biogas engineering comprises fermentor tank and biogas residue-biogas liquid pool, and described ladder residual neat recovering system comprises hot-water cylinder, heat lifting system and heat second lift system.Biogas engineering novel waste heat utilization system passes through heat lifting system by the heat collection in biogas residue and biogas liquid in hot-water cylinder, deliver in heat-accumulator tank after utilizing a small amount of electric energy to be heated up by the heat in hot-water cylinder by heat second lift system again, utilizing direct-fired heat pump the heat in heat-accumulator tank heated and pass to fermentor tank, temperature required for fermenting when maintaining producing methane, the heat that the biogas residue and biogas liquid of the discharge effectively utilized carries, reduce the energy consumption maintained required for leavening temperature, effectively maintain biogas engineering to run normally, maintain the benign cycle of system, reduce the working cost of biogas engineering, energy consumption reduces by 50 ~ 90%, change the biogas engineering situation that no profits came in, create huge economic benefit.
Description
Technical field
The utility model relates to a kind of energy recovery and utilizes system, specifically, is a kind of biogas engineering novel waste heat utilization system.
Background technology
At present worldwide, the fossil oils such as oil, Sweet natural gas, coal are day by day in short supply, non-renewable due to fossil oil, and each state is all actively being found and research alternative energy.Compared with fossil energy, biomass energy has fairly obvious advantage, is a kind of renewable energy source form integrating environmental benefit and economic benefit.Meanwhile, the fast development of China's economic also brings serious environmental problem, improves the ecological environment, and realizes the policy emphasis that economic Sustainable development is Chinese future development.Biomass waste discharges the water pollution and Land pollution seriously restriction China sustainable economic development that cause; industrial bio matter waste gasification utilizes the mass-producing of technology to meet national great demand and socio-economic development needs; its development is to ecological environment treatment; improve health condition; realize changing waste into resources to utilize; promote environmental protection equipment manufacture integral level, pool urban-rural integration development etc. are all significant.
Biogas engineering along with technological accumulation in recent years, gradually by single raw material to compound material, by a small scale to extensive future development, the large-sized biogas engineering of compound material becomes the main flow of biogas engineering.In biogas industry technical development, although China has developed into relatively ripe stage in traditional biogas engineering industry, but it is low to be subject to fermentation efficiency, operation energy consumption is high, biogas residue and biogas liquid fertilizer is dissolved and is sold the factor restrictions such as limited, cause that most biogas engineering is profitability poorly can not be run normally, industry development is limited.
In biogas engineering operational process, for the efficient stable maintaining anaerobic reaction runs, there are thermophilic fermentation (50-60 DEG C) and mesophilic digestion (30-35 DEG C) two kinds of techniques.Holding temperature is constant is the key ensureing biogas engineering aerogenesis, the biogas produced all needs to carry out purification process as vehicle fuel or the prerequisite of doing liquefied gas, such biogas engineering is in operational process, a large amount of tow taste heats can be produced, the heat that the biogas residue and biogas liquid comprising discharge carries, purify heat with recirculated water used for air compressor, the heat that the waste heat of generator, pressure swing adsorption decarbonization mode produce, and these heats are because temperature is lower, except the heat recovery technology comparative maturity of generator in the engineering of routine, remaining heat has substantially all slatterned.In biogas engineering, waste heat fails efficient recovery, system cloud gray model needs a large amount of heats, and also need to increase external thermal source by boiler or other approach in order to the high temperature that maintains biogas engineering or mesophilic digestion, according to Various Seasonal, different feeding temperatures, biogas engineering produce 30% ~ 90% of biogas and will be used for maintaining leavening temperature, in biogas engineering biogas residue and biogas liquid dissolve and market completely not unimpeded again, the overall efficiency of biogas engineering will be caused very poor, substantially all run in the maintenance that breaks even, at the northern area that weather condition are more severe, even need operation of sustaining losses in business.
Utility model content
The utility model runs power consumption greatly, costly for current biogas engineering, the a large amount of tow taste heats produced can not utilize, the problems such as the biogas of output is difficult to the operation ensureing to maintain system, of poor benefits, devise a kind of biogas engineering novel waste heat utilization system.
Biogas engineering novel waste heat utilization system of the present utility model, described biogas engineering comprises fermentor tank and biogas residue-biogas liquid pool, and described ladder residual neat recovering system comprises hot-water cylinder, heat lifting system and heat second lift system.
Described heat lifting system comprises interchanger, and the water-in that biogas residue-biogas liquid pool is arranged by pipeline and natural pond liquid recycle pump and interchanger cold side is connected, and the water outlet that interchanger cold side is arranged is connected with biogas residue-biogas liquid pool by pipeline; The water-in that the middle and lower part of hot-water cylinder is arranged by pipeline and heat exchange water pump and interchanger heat absorbing side is connected, and the water outlet that interchanger heat absorbing side is arranged is connected with the top of hot-water cylinder by pipeline.
Described heat second lift system comprises water resource heat pump, heat-accumulator tank, direct-fired heat pump, the water inlet that hot-water cylinder is arranged by the first water pump and pipeline and water resource heat pump low temperature side is connected, and the water outlet that water resource heat pump low temperature side is arranged is connected with hot-water cylinder by pipeline; The water outlet that water resource heat pump high temperature side is arranged is connected with heat-accumulator tank by pipeline, the warm water entrance that heat-accumulator tank is arranged by pipeline and direct-fired heat pump is connected, and the low-temperature return water mouth that direct-fired heat pump is arranged is connected with the water-in that pipeline and water resource heat pump high temperature side are arranged by the second water pump; The entrance of the hot-water line that the hot water outlet that direct-fired heat pump is arranged is arranged with fermentor tank with pipeline by the 3rd water pump is connected, and the high-temperature tempering mouth that the outlet of the hot-water line that fermentor tank is arranged is arranged by pipeline and direct-fired heat pump is connected.
Preferably, described biogas engineering comprises the water tower that dries in the air, and the water outlet that the water tower that dries in the air is arranged is connected with hot-water cylinder with pipeline by pneumatics pusher side water pump, and the water-in that the water tower that dries in the air is arranged is connected with hot-water cylinder by pipeline.
Preferably, be provided with temperature sensor in hot-water cylinder, temperature sensor is electrically connected with pneumatics pusher side water pump.
Preferably, described biogas engineering comprises absorption tower, refrigeration residual heat system is installed between absorption tower and hot-water cylinder, described refrigeration residual heat system comprises air conditioner water heating machine, hot-water cylinder is connected by the water inlet heating side water pump and pipeline and air conditioner water heating machine heat absorbing side and arrange, and the water outlet that air conditioner water heating machine heat absorbing side is arranged is connected with hot-water cylinder by pipeline; The recirculated water entrance that the water outlet that air conditioner water heating machine cold side is arranged is arranged by pipeline and absorption tower is connected, and the circulating water outlet that absorption tower is arranged is connected with the water inlet that pipeline and air conditioner water heating machine cold side are arranged by refrigeration side water pump.
The beneficial effects of the utility model are: biogas engineering novel waste heat utilization system passes through heat lifting system by the heat collection in biogas residue and biogas liquid in hot-water cylinder, deliver in heat-accumulator tank after utilizing a small amount of electric energy to be heated up by the heat in hot-water cylinder by heat second lift system again, utilizing direct-fired heat pump the heat in heat-accumulator tank heated and pass to fermentor tank, temperature required for fermenting when maintaining producing methane, the heat that the biogas residue and biogas liquid of the discharge effectively utilized carries, reduce the energy consumption maintained required for leavening temperature, effectively maintain biogas engineering to run normally, maintain the benign cycle of system, reduce the working cost of biogas engineering, energy consumption reduces by 50 ~ 90%, change the biogas engineering situation that no profits came in, create huge economic benefit.Biogas engineering novel waste heat utilization system also eliminates heating boiler in former biogas engineering system and refrigerator, reduces recirculated water heat, reduces power and the capacity of the water tower that dries in the air, reduce construction cost and the operation maintenance cost of biogas engineering.
Air conditioner water heating machine not only can provide cold water, and also the heat of generation can be reclaimed, hot-water cylinder has reclaimed the heat dried in the air in water tower and air conditioner water heating machine, further increases the utilization ratio of tow taste heat, enhances the efficiency of waste heat recovery.
The temperature sensor that hot-water cylinder is arranged can detect temperature in hot-water cylinder, when the temperature is low, the pneumatics pusher side water pump be connected electrically is started working, and is sent in hot-water cylinder by the heat dried in the air in water tower, improve the temperature in hot-water cylinder, make heat collection more efficient and flexible.
Accompanying drawing explanation
Accompanying drawing 1 is the system schematic of biogas engineering novel waste heat utilization system.
Embodiment
Biogas engineering novel waste heat utilization system of the present utility model, biogas engineering comprises fermentor tank, biogas residue-biogas liquid pool, dry in the air water tower and absorption tower.Ladder residual neat recovering system comprises hot-water cylinder, heat lifting system and heat second lift system.
Heat lifting system comprises interchanger, and the water-in that biogas residue-biogas liquid pool is arranged by pipeline and natural pond liquid recycle pump and interchanger cold side is connected, and the water outlet that interchanger cold side is arranged is connected with biogas residue-biogas liquid pool by pipeline; The water-in that the middle and lower part of hot-water cylinder is arranged by pipeline and heat exchange water pump and interchanger heat absorbing side is connected, and the water outlet that interchanger heat absorbing side is arranged is connected with the top of hot-water cylinder by pipeline.
Heat second lift system comprises water resource heat pump, heat-accumulator tank, direct-fired heat pump, and direct-fired heat pump instead of the heating boiler in former biogas engineering system, is fermentor tank heat supply.The water inlet that hot-water cylinder is arranged by the first water pump and pipeline and water resource heat pump low temperature side is connected, and the water outlet that water resource heat pump low temperature side is arranged is connected with hot-water cylinder by pipeline; The water outlet that water resource heat pump high temperature side is arranged is connected with heat-accumulator tank by pipeline, the warm water entrance that heat-accumulator tank is arranged by pipeline and direct-fired heat pump is connected, and the low-temperature return water mouth that direct-fired heat pump is arranged is connected with the water-in that pipeline and water resource heat pump high temperature side are arranged by the second water pump; The entrance of the hot-water line that the hot water outlet that direct-fired heat pump is arranged is arranged with fermentor tank with pipeline by the 3rd water pump is connected, and the high-temperature tempering mouth that the outlet of the hot-water line that fermentor tank is arranged is arranged by pipeline and direct-fired heat pump is connected.
The water outlet that the water tower that dries in the air is arranged is connected with hot-water cylinder with pipeline by pneumatics pusher side water pump, and the water-in that the water tower that dries in the air is arranged is connected with hot-water cylinder by pipeline.Be provided with temperature sensor in hot-water cylinder, temperature sensor is electrically connected with pneumatics pusher side water pump.
Refrigeration residual heat system is installed between absorption tower and hot-water cylinder, described refrigeration residual heat system comprises air conditioner water heating machine, air conditioner water heating machine instead of in former biogas engineering as decarburization purification provides the refrigerator of cold water, hot-water cylinder is connected by the water inlet heating side water pump and pipeline and air conditioner water heating machine heat absorbing side and arrange, and the water outlet that air conditioner water heating machine heat absorbing side is arranged is connected with hot-water cylinder by pipeline; The recirculated water entrance that the water outlet that air conditioner water heating machine cold side is arranged is arranged by pipeline and absorption tower is connected, and the circulating water outlet that absorption tower is arranged is connected with the water inlet that pipeline and air conditioner water heating machine cold side are arranged by refrigeration side water pump.
When end-of-life state, in biogas engineering, there is no waste heat, also produce without any biogas.First utilize the fuel such as direct-fired heat pump gas-firing to produce hot water, the hot water of generation is sent in the hot-water line of fermentor tank, for fermentor tank carries out the temperature that mesophilic digestion or thermophilic fermentation provide necessary.
Fermentor tank starts fermentation and produces after biogas, and natural pond slag and the natural pond liquid of generation enter into biogas residue-biogas liquid pool, when carry out in fermentor tank be mesophilic digestion time, the temperature in biogas residue-biogas liquid pool is about 35 DEG C; When carry out in fermentor tank be thermophilic fermentation time, the temperature in biogas residue-biogas liquid pool is about 60 DEG C.
Natural pond liquid is delivered in the cold side of interchanger by natural pond liquid recycle pump, and the water in hot-water cylinder is delivered in the heat absorbing side of interchanger by heat exchange water pump, and the heat of natural pond liquid is delivered to by interchanger in the water in hot-water cylinder, makes the water temperature in hot-water cylinder reach 30 DEG C ~ 35 DEG C.
The water of 30 DEG C ~ 35 DEG C in hot-water cylinder is delivered in the low temperature side of water resource heat pump by the first water pump, by the heating of water resource heat pump, make a small amount of electric energy, the high temperature side output temperature of water resource heat pump can be made to reach the water of 45 DEG C ~ 50 DEG C, and the water of these 45 DEG C ~ 50 DEG C is delivered in heat-accumulator tank store, by the effect of the second water pump, water in heat-accumulator tank is delivered in direct-fired heat pump, the heat energy that the biogas combustion utilizing fermentor tank to produce produces heats, direct-fired heat pump generation temperature is made to reach the water of 60 DEG C ~ 75 DEG C, finally by the 3rd water pump, the water of these 60 DEG C ~ 75 DEG C is sent in the heating tube of fermentor tank, meet the temperature requirement of thermophilic fermentation or mesophilic digestion in fermentor tank.
The biogas that biogas engineering produces carries out carrying and storing, need to utilize Marsh gas compression machine, and Marsh gas compression machine needs recirculated water to cool it in the course of the work, the recirculated water that temperature raises finally is sent to and dries in the air in water tower, then is distributed in air by the heat in water coolant by the water tower that dries in the air.Temperature sensor in hot-water cylinder detects water temperature in tank, when the water in hot-water cylinder does not reach 30 DEG C ~ 35 DEG C, water temperature information is sent to pneumatics pusher side water pump by temperature sensor, make its work, water in hot-water cylinder is transported to and dries in the air in water tower by pneumatics pusher side water pump, because the water temperature of drying in the air in water tower is about 40 DEG C, the heat in the water tower that dries in the air in water coolant is passed in the water carried in the hot-water cylinder of coming, and increases the heat-up rate of water in hot-water cylinder.
And due in producing methane process, conventional decarburization purification needs to maintain about 7 DEG C, cold produced by general employing refrigerator, and utilize now air conditioner water heating machine to provide the cold water of about 7 DEG C to absorption tower, the heat that simultaneously air conditioner water heating machine work produces then is delivered in the water heated in hot-water cylinder that side water pump brings, too increases the speed of water in hot-water cylinder.
The waste heat produced in biogas residue-biogas liquid pool, dry in the air water tower and air conditioner water heating machine is all sent in hot-water cylinder, is heated, be sent in direct-fired heat pump by water resource heat pump, makes direct-fired heat pump only need a small amount of fuel consumption, can carry high-temperature water to fermentor tank.
Claims (4)
1. a biogas engineering novel waste heat utilization system, described biogas engineering comprises fermentor tank and biogas residue-biogas liquid pool, it is characterized in that, described ladder residual neat recovering system comprises hot-water cylinder, heat lifting system and heat second lift system,
Described heat lifting system comprises interchanger, and the water-in that biogas residue-biogas liquid pool is arranged by pipeline and natural pond liquid recycle pump and interchanger cold side is connected, and the water outlet that interchanger cold side is arranged is connected with biogas residue-biogas liquid pool by pipeline; The water-in that the middle and lower part of hot-water cylinder is arranged by pipeline and heat exchange water pump and interchanger heat absorbing side is connected, and the water outlet that interchanger heat absorbing side is arranged is connected with the top of hot-water cylinder by pipeline;
Described heat second lift system comprises water resource heat pump, heat-accumulator tank, direct-fired heat pump, the water inlet that hot-water cylinder is arranged by the first water pump and pipeline and water resource heat pump low temperature side is connected, and the water outlet that water resource heat pump low temperature side is arranged is connected with hot-water cylinder by pipeline; The water outlet that water resource heat pump high temperature side is arranged is connected with heat-accumulator tank by pipeline, the warm water entrance that heat-accumulator tank is arranged by pipeline and direct-fired heat pump is connected, and the low-temperature return water mouth that direct-fired heat pump is arranged is connected with the water-in that pipeline and water resource heat pump high temperature side are arranged by the second water pump; The entrance of the hot-water line that the hot water outlet that direct-fired heat pump is arranged is arranged with fermentor tank with pipeline by the 3rd water pump is connected, and the high-temperature tempering mouth that the outlet of the hot-water line that fermentor tank is arranged is arranged by pipeline and direct-fired heat pump is connected.
2. biogas engineering novel waste heat utilization system according to claim 1, it is characterized in that, described biogas engineering comprises the water tower that dries in the air, and the water outlet that the water tower that dries in the air is arranged is connected with hot-water cylinder with pipeline by pneumatics pusher side water pump, and the water-in that the water tower that dries in the air is arranged is connected with hot-water cylinder by pipeline.
3. biogas engineering novel waste heat utilization system according to claim 2, is characterized in that, be provided with temperature sensor in hot-water cylinder, and temperature sensor is electrically connected with pneumatics pusher side water pump.
4. biogas engineering novel waste heat utilization system according to claim 1, it is characterized in that, described biogas engineering comprises absorption tower, refrigeration residual heat system is installed between absorption tower and hot-water cylinder, described refrigeration residual heat system comprises air conditioner water heating machine, hot-water cylinder is connected by the water inlet heating side water pump and pipeline and air conditioner water heating machine heat absorbing side and arrange, and the water outlet that air conditioner water heating machine heat absorbing side is arranged is connected with hot-water cylinder by pipeline; The recirculated water entrance that the water outlet that air conditioner water heating machine cold side is arranged is arranged by pipeline and absorption tower is connected, and the circulating water outlet that absorption tower is arranged is connected with the water inlet that pipeline and air conditioner water heating machine cold side are arranged by refrigeration side water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420529480.6U CN204058454U (en) | 2014-09-15 | 2014-09-15 | Biogas engineering novel waste heat utilization system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420529480.6U CN204058454U (en) | 2014-09-15 | 2014-09-15 | Biogas engineering novel waste heat utilization system |
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| CN204058454U true CN204058454U (en) | 2014-12-31 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195035A (en) * | 2014-09-15 | 2014-12-10 | 青岛中科华通能源工程有限公司 | Novel comprehensive waste heat utilization system of biogas engineering |
| CN107474888A (en) * | 2017-09-29 | 2017-12-15 | 国峰清源生物能源有限责任公司 | Heat recovery system and heat recovery method based on biogas film purifying technique |
| CN108949508A (en) * | 2018-08-29 | 2018-12-07 | 天津科技大学 | A kind of fermentor residual neat recovering system and waste heat reclaiming process |
| CN113716993A (en) * | 2021-08-25 | 2021-11-30 | 北京四良科技有限公司 | Constant temperature controller for compost fermentation |
-
2014
- 2014-09-15 CN CN201420529480.6U patent/CN204058454U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195035A (en) * | 2014-09-15 | 2014-12-10 | 青岛中科华通能源工程有限公司 | Novel comprehensive waste heat utilization system of biogas engineering |
| CN104195035B (en) * | 2014-09-15 | 2016-01-13 | 青岛中科华通能源工程有限公司 | Biogas engineering waste heat comprehensive utilization system |
| CN107474888A (en) * | 2017-09-29 | 2017-12-15 | 国峰清源生物能源有限责任公司 | Heat recovery system and heat recovery method based on biogas film purifying technique |
| CN107474888B (en) * | 2017-09-29 | 2023-09-26 | 国峰清源生物能源有限责任公司 | Heat recovery system and heat recovery method based on biogas membrane purification process |
| CN108949508A (en) * | 2018-08-29 | 2018-12-07 | 天津科技大学 | A kind of fermentor residual neat recovering system and waste heat reclaiming process |
| CN108949508B (en) * | 2018-08-29 | 2023-10-03 | 天津科技大学 | Fermentation tank waste heat recovery system and waste heat recovery process |
| CN113716993A (en) * | 2021-08-25 | 2021-11-30 | 北京四良科技有限公司 | Constant temperature controller for compost fermentation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141231 Effective date of abandoning: 20160113 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |