CN203978535U - A kind of low temperature exhaust heat reclaiming system of many way of outputs - Google Patents
A kind of low temperature exhaust heat reclaiming system of many way of outputs Download PDFInfo
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- CN203978535U CN203978535U CN201420405288.6U CN201420405288U CN203978535U CN 203978535 U CN203978535 U CN 203978535U CN 201420405288 U CN201420405288 U CN 201420405288U CN 203978535 U CN203978535 U CN 203978535U
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
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Abstract
The low temperature exhaust heat reclaiming system of a kind of many way of outputs of the utility model, belongs to low temperature exhaust heat recovery and utilization technology field; Technical problem to be solved has been to provide a kind of low temperature exhaust heat reclaiming system of many way of outputs, utilize low-temperature cogeneration device that heat energy is changed into electric energy, and the Lowlevel thermal energy after low-temperature cogeneration device is utilized is after the potential energy lifting of heating equipment and heat pump, form with heat energy is utilized again, stage by stage, grade utilization, improved the recycling efficiency of low temperature exhaust heat; The technological scheme that solves this technical problem employing is: the smoke inlet of phase-change heat-exchanger is connected with 150 ℃ of low-temperature flue gas device for transferring, phase-change heat-exchanger is connected with the medium import of low-temperature cogeneration device, on low-temperature cogeneration device, be connected with high temperature heat pump and/or confession thermal conditioning and control gear, high temperature heat pump and confession thermal conditioning are all connected with heating power user with control gear; The utility model can be widely used in the recycling field of low temperature exhaust heat.
Description
Technical field
The low temperature exhaust heat reclaiming system of a kind of many way of outputs of the utility model, belongs to low temperature exhaust heat recovery and utilization technology field.
Background technique
It is one of ten large emphasis energy conservation projects in the energy-conservation Long-and Medium-term Development ad hoc planning of China < < > > that waste heat overbottom pressure is utilized engineering.At present in the every field of China's industry, exist a large amount of cryogenic waste heat resources (below 250 ℃, low pressure or normal pressure), owing to lacking effective technological means, be not fully used, tradition waste heat overbottom pressure utilizes the running parameter of technology to be mostly high parameter, large capacity, cannot utilize this part comparatively to disperse but the huge energy of total amount.
China proposes " arriving the year two thousand twenty China unit GDP energy consume than decline 40%-45% in 2005 " in the meeting of Copenhagen.12 the energy conservation object that country determines is 16%, this is carried out to year decomposition, completes every year 3.5% realization that can guarantee overall goals.In February, 2012,22 State Statistics Bureau announced the national economy and social development statistical communique > > demonstration in 2011 of the < < People's Republic of China (PRC), within 2011, ten thousand yuan, whole nation GDP (gross domestic product) energy consumption declines 2.01%, 3.5% target of setting up lower than National Development and Reform Committee.The amount of energy saving of every profession and trade is huge, and the energy-conservation chain development of different industries relates to the utilization of waste heat overbottom pressure not yet completely.
Consumption of China the majority (2011 annual data) of 53% cement, 48% iron ore, 47% coal and each staple and 89 (2011 annual data) in the per Unit GDP Energy Consumption output value rank whole world in the world, energy-saving potential is obvious, and the waste heat overbottom pressure of discharging in these highly energy-consuming industries occupies the 15% even more of its energy consumption.
The comprehensive programme of work > of the State Council < < energy-saving and emission-reduction > points out: to the year two thousand twenty, and ten thousand yuan of GDP Energy Intensity Reduction 16% left and right; Unit industrial added value water consumption reduces by 30%; Total emissions of major pollutants reduces 10%; Percentage of industrial solid waste that is comprehensively utilized reaches more than 60%.
Perfect energy-saving and emission-reduction incentive and restraint mechanisms; Optimization of Energy Structure; rationally control total energy consumption; improve resource products pricing mechanism and resource environment tax-fee system; perfect energy-saving and emission-reduction laws and regulations and standard; the examination of strengthening target for energy-saving and emission-reduction responsibility, resources conservation and environmental protection through producing, circulate, consume, build each link of each field, the lifting capability of sustainable development.Promote major fields spanning development, greatly develop the strategic new industries such as energy-conserving and environment-protective, generation information technology, biology, high-end equipment manufacture, new energy, new material, new-energy automobile.Energy-efficient, the advanced environmental protection of energy-conserving and environment-protective industrial emphases development, resource circulation utilization key technology equipment, products & services.Generation information technical industry is given priority to next-generation mobile communications, Next Generation Internet, the integration of three networks, Internet of Things, cloud computing, intergrated circuit, novel demonstration, high-end software, high-end server and information service.Biological industry is given priority to biological medicine, biomedical engineering product, biological husbantry, biological manufacture.High-end equipment manufacturing industry is given priority to aircraft equipment, satellite and application, railway transportation equipment, intelligent manufacturing equipment.New Energy Industry is given priority to nuclear energy of new generation, solar thermal utilization and photovoltaic and photothermal generating, wind power technology equipment, intelligent grid, biomass energy.New material industry is given priority to new function material, advanced configuration material, high-performance fiber and composite material thereof, general character basic material.The development of new-energy automobile industrial emphases plug-in hybrid-power automobile, pure electric automobile and fuel cell car technology.Strategic new industry value added accounts for GDP (gross domestic product) proportion and reaches 8% left and right.
< < industrial energy saving " 12 " planning > > proposes index request for 9 large key industrys and 20 kinds of major product energy consumptions declines, draft 9 large energy-conservation key projects simultaneously, estimate that 9 large emphasis energy conservation project investment demand total values reach 5,900 hundred million yuan.In large " cake " that nine large key projects drive, Industrial Stoves boiler, electric system, high/low temperature waste heat overbottom pressure are utilized three large fields to share wherein to exceed 1/3rd shares.
Existing low temperature exhaust heat reclaims technology and the approach thereof of generally utilizing:
What 1, the heat recovery of 250 ℃ of > adopted is exhaust heat boiler and steam turbine power generation technology;
What 2, the heat recovery of 150～250 ℃ adopted is that high efficient heat exchanging technology reclaims heat energy recycling;
3,150 ℃ of general employings of following waste heat are directly recycled, heating, life/produce and use heat etc.;
4, after 40～60 ℃ of scope waste heats promote temperature by heat pump techniques, heat, live/produce by heat;
5,20～40 ℃ of scope waste heats directly enter environment.
The narrow limitation of existing low temperature exhaust heat recovery and utilization technology and approach thereof:
1, exhaust heat boiler and steam turbine power generation heat recovery technology maturation are reliable, and after UTILIZATION OF VESIDUAL HEAT IN generating, the tail hot temperature degree of discharge is between 170～175 ℃, and UTILIZATION OF VESIDUAL HEAT IN is incomplete, also has very large recycling space.
2, the heat recovery of 150～250 ℃ is the basic energy recovery to residual heat resources, the lifting that the energy quality of waste heat does not obtain, and the efficiency of recovery is restricted (60～80%) also.
3, heating after the following heat recoveries of 40～60 ℃ and 150 ℃, life/production and application narrow limitation are larger, heating period finishes to can not get effective secondary utilization after rear most of heat recovery, and it is smaller with respect to the waste heat amount reclaiming by hot demand to live/produce, after recovery, can not get effective utilization.
4, the benefit of 20～40 ℃ of scope UTILIZATION OF VESIDUAL HEAT IN and the effective balance of investment, so, most of waste heat unit directly drains, although this part waste heat can not manifest the adverse effect of environment at once, but long-term thermal pollution effect can aggravate the deterioration of surrounding environment, form " environmental thermal pollution ".
Model utility content
The utility model has overcome the deficiency that prior art exists, a kind of low temperature exhaust heat reclaiming system of many way of outputs is provided, utilize low-temperature cogeneration device that heat energy is changed into electric energy, and the Lowlevel thermal energy after low-temperature cogeneration device is utilized is after the potential energy lifting of heating equipment and heat pump, form with heat energy is utilized again, stage by stage, grade utilization, improved the recycling efficiency of low temperature exhaust heat.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of low temperature exhaust heat reclaiming system of many way of outputs, comprise phase-change heat-exchanger, low-temperature cogeneration device, high temperature heat pump and confession thermal conditioning and control gear, the smoke inlet of described phase-change heat-exchanger is connected with 150 ℃ of low-temperature flue gas device for transferring, the smoke outlet of described phase-change heat-exchanger is connected with discharge flue, on described phase-change heat-exchanger, be connected with low-temperature cogeneration device, described phase-change heat-exchanger is connected with the medium import of low-temperature cogeneration device by heat transfer, high level heat in phase-change heat-exchanger is passed to low-temperature cogeneration device to generate electricity, the power output end of described low-temperature cogeneration device is electrically connected to consumer/user side, on the media outlet of described low-temperature cogeneration device, be connected with high temperature heat pump and/or supply thermal conditioning and control gear, the media outlet of described low-temperature cogeneration device is communicated with the import of control gear with high temperature heat pump and/or for thermal conditioning by heat transfer, the Lowlevel thermal energy of the media outlet end of low-temperature cogeneration device is carried out to potential energy lifting, described high temperature heat pump and confession thermal conditioning are all connected with heating power user by heat transfer with the outlet of control gear,
The structure of described low-temperature cogeneration device is: comprise expansion power generation machine, decompressor and liquid-storage container, described expansion power generation machine, expander and liquid-storage container are all arranged in housing, described decompressor is communicated with by circulation loop with generator, by expansion machine driving generator, work, described liquid-storage container is connected with decompressor.
Described phase-change heat-exchanger is compound phase change heat exchanger
.
The beneficial effect that the utility model compared with prior art has is: 150 ℃ of low-temperature flue gas that the utility model is discharged other equipment carry out heat exchange through phase-change heat-exchanger, the low-temperature flue gas lower than 50 ℃ after heat exchange is directly drained, phase-change heat-exchanger transmits low-temperature cogeneration device by heat transfer by high level heat and generates electricity, low-temperature cogeneration device is directly supplied with consumer/user by electric energy, the Lowlevel thermal energy of discharging from the media outlet end of low-temperature cogeneration device can pass to high temperature heat pump by heat transfer and carry out potential energy lifting, and the heat energy after potential energy is promoted directly offers heating/life with heating power users such as hot equipment, also can be by carrying out after potential energy lifting for thermal conditioning and control gear, supply with heating/life with heating power users such as hot equipment, discarded low-temperature flue gas is passed through to electric energy, heat energy classification utilizes, and select high temperature heat pump or supply thermal conditioning and control gear according to concrete application region, or the two is used in combination simultaneously, improved the utilization ratio of used heat.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described further.
Fig. 1 is structured flowchart of the present utility model.
Fig. 2 is structural representation of the present utility model.
In figure, 1 is that phase-change heat-exchanger, 2 is that low-temperature cogeneration device, 3 is that high temperature heat pump, 4 is that generator, 6 is that decompressor, 7 is that liquid-storage container, 8 is housing for supplying thermal conditioning and control gear, 5.
Embodiment
As Fig. 1, shown in Fig. 2, the low temperature exhaust heat reclaiming system of a kind of many way of outputs of the utility model, comprise phase-change heat-exchanger 1, low-temperature cogeneration device 2, high temperature heat pump 3 and confession thermal conditioning and control gear 4, the smoke inlet of described phase-change heat-exchanger 1 is connected with 150 ℃ of low-temperature flue gas device for transferring, the smoke outlet of described phase-change heat-exchanger 1 is connected with discharge flue, on described phase-change heat-exchanger 1, be connected with low-temperature cogeneration device 2, described phase-change heat-exchanger 1 is connected with the medium import of low-temperature cogeneration device 2 by heat transfer, high level heat in phase-change heat-exchanger 1 is passed to low-temperature cogeneration device 2 to generate electricity, the power output end of described low-temperature cogeneration device 2 is electrically connected to consumer/user side, on the media outlet of described low-temperature cogeneration device 2, be connected with high temperature heat pump 3 and/or supply thermal conditioning and control gear 4, the media outlet of described low-temperature cogeneration device 2 is communicated with the import of control gear 4 with high temperature heat pump 3 and/or for thermal conditioning by heat transfer, the Lowlevel thermal energy of the media outlet end of low-temperature cogeneration device 2 is carried out to potential energy lifting, described high temperature heat pump 3 and confession thermal conditioning are all connected with heating power user by heat transfer with the outlet of control gear 4,
The structure of described low-temperature cogeneration device 2 is: comprise expansion power generation machine 5, decompressor 6 and liquid-storage container 7, described expansion power generation machine 5, expander 6 and liquid-storage container 7 are all arranged in housing 8, described decompressor 6 is communicated with by circulation loop with generator 5, by decompressor 6, drive generator 5 work, described liquid-storage container 7 is connected with decompressor 6.
Described phase-change heat-exchanger 1 is compound phase change heat exchanger
.
Working procedure of the present utility model: 150 ℃ of discarded low-temperature flue gas enter phase-change heat-exchanger 1 and carry out heat exchange, after heat exchange, lower than the low-temperature flue gas of 50 ℃, directly drain, if phase-change heat-exchanger 1 breaks down, the low-temperature flue gas of 150 ℃ is directly drained without phase-change heat-exchanger 1, phase-change heat-exchanger 1 by heat transfer pipe by delivery to low-temperature cogeneration device 2, generate electricity, electricity is exported to consumer/user side, convert utilization of power to; Low-temperature cogeneration device 2 passes to high temperature heat pump 3 by the low-temperature water heating after generating and carries out potential energy lifting, hot water supply heating/life after potential energy is promoted is with heating power users such as hot equipment, again utilize heat energy, low-temperature water heating after 2 generatings of low-temperature cogeneration device also can be passed to for thermal conditioning and control gear 4 and be carried out potential energy lifting by heat transfer, hot water supply heating/life after potential energy is promoted, with heating power users such as hot equipment, utilizes again with the form of heat energy.
The utility model is by heat exchange, low temperature exhaust heat is first generated electricity by low-temperature cogeneration device 2, convert utilization of power to, and the Lowlevel thermal energy after generating is promoted after potential energy by high temperature heat pump 3 and/or for thermal conditioning and control gear 4, form with heat energy is utilized again, by the classification utilization of electric energy-heat energy, discarded low temperature exhaust heat is fully utilized, and has improved the utilization ratio of low temperature exhaust heat.
In the utility model, for thermal conditioning and control gear 3, be existing heating equipment, the hot pump in low temp 3 relating in the utility model is prior art.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (2)
1. the low temperature exhaust heat reclaiming system of the way of output more than a kind, it is characterized in that: comprise phase-change heat-exchanger (1), low-temperature cogeneration device (2), high temperature heat pump (3) and confession thermal conditioning and control gear (4), the smoke inlet of described phase-change heat-exchanger (1) is connected with 150 ℃ of low-temperature flue gas device for transferring, the smoke outlet of described phase-change heat-exchanger (1) is connected with discharge flue, on described phase-change heat-exchanger (1), be connected with low-temperature cogeneration device (2), described phase-change heat-exchanger (1) is connected with the medium import of low-temperature cogeneration device (2) by heat transfer, high level heat in phase-change heat-exchanger (1) is passed to low-temperature cogeneration device (2) to generate electricity, the power output end of described low-temperature cogeneration device (2) is electrically connected to consumer/user side, on the media outlet of described low-temperature cogeneration device (2), be connected with high temperature heat pump (3) and/or supply thermal conditioning and control gear (4), the media outlet of described low-temperature cogeneration device (2) is communicated with the import of control gear (4) with high temperature heat pump (3) and/or for thermal conditioning by heat transfer, the Lowlevel thermal energy of the media outlet end of low-temperature cogeneration device (2) is carried out to potential energy lifting, described high temperature heat pump (3) and confession thermal conditioning are all connected with heating power user by heat transfer with the outlet of control gear (4),
The structure of described low-temperature cogeneration device (2) is: comprise expansion power generation machine (5), decompressor (6) and liquid-storage container (7), described expansion power generation machine (5), expander (6) and liquid-storage container (7) are all arranged in housing (8), described decompressor (6) is communicated with by circulation loop with generator (5), by decompressor (6), drive generator (5) work, described liquid-storage container (7) is connected with decompressor (6).
2. the low temperature exhaust heat reclaiming system of a kind of many way of outputs according to claim 1, is characterized in that: described phase-change heat-exchanger (1) is compound phase change heat exchanger
.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420405288.6U CN203978535U (en) | 2014-07-22 | 2014-07-22 | A kind of low temperature exhaust heat reclaiming system of many way of outputs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420405288.6U CN203978535U (en) | 2014-07-22 | 2014-07-22 | A kind of low temperature exhaust heat reclaiming system of many way of outputs |
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| Publication Number | Publication Date |
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| CN203978535U true CN203978535U (en) | 2014-12-03 |
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| CN201420405288.6U Expired - Fee Related CN203978535U (en) | 2014-07-22 | 2014-07-22 | A kind of low temperature exhaust heat reclaiming system of many way of outputs |
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| CN (1) | CN203978535U (en) |
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- 2014-07-22 CN CN201420405288.6U patent/CN203978535U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20160722 |