CN203980427U - A kind of low temperature exhaust heat energy conserving system that adopts many way of outputs - Google Patents
A kind of low temperature exhaust heat energy conserving system that adopts many way of outputs Download PDFInfo
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- CN203980427U CN203980427U CN201420405271.0U CN201420405271U CN203980427U CN 203980427 U CN203980427 U CN 203980427U CN 201420405271 U CN201420405271 U CN 201420405271U CN 203980427 U CN203980427 U CN 203980427U
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Abstract
A kind of low temperature exhaust heat energy conserving system that adopts 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 energy conserving system that adopts many way of outputs, for different cryogens, realize heat to electric conversion, and in conversion process, realize energy lift, thereby realize the object that low taste can transform to GOOD TASTE; The technical scheme that solves this technical problem employing is: a kind of low temperature exhaust heat energy conserving system that adopts many way of outputs, the thermal source entrance of phase-change heat-exchanger is connected with 150 DEG C of low-temperature flue gas device for transferring, the thermal source outlet of phase-change heat-exchanger is connected with discharge flue, on phase-change heat-exchanger, be connected with cycle heat exchange device, the output of low-temperature cogeneration device is electrically connected with consumer/user side, and the media outlet end of low-temperature cogeneration device is connected with the entrance point of hot pump in low temp; The utility model can be widely used in the recycling field of low temperature exhaust heat.
Description
Technical field
A kind of low temperature exhaust heat energy conserving system that adopts many way of outputs of the utility model, belongs to low temperature exhaust heat recovery and utilization technology field.
Background technology
It is one of ten large emphasis energy conservation projects in China's " energy-conservation Long-and Medium-term Development ad hoc planning " 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 DEG C, low pressure or normal pressure), be not fully used owing to lacking effective technological means, 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 ensure overall goals.On February 22nd, 2012, State Statistics Bureau announced " People's Republic of China's national economy and social development statistical communique in 2011 " demonstration, and within 2011, ten thousand yuan, whole nation GDP energy consumptions decline 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.
State Council's " comprehensive programme of work of 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 the each link in 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 forms of 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, integrated 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 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 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, drafts 9 large energy-conservation key projects simultaneously, estimates 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 waste heat recovery of 250 DEG C of > adopted is waste heat boiler and steam turbine power generation technology;
What 2, the waste heat recovery of 150～250 DEG C adopted is that high efficient heat exchanging technology reclaims heat energy recycling;
3,150 DEG C of general employings of following waste heat are directly recycled, heating, life/produce and use heat etc.;
4, after 40～60 DEG C of scope waste heats promote temperature by heat pump techniques, heat, live/produce by heat;
5,20～40 DEG C of scope waste heats directly enter environment.
The limitation of existing low temperature exhaust heat recovery and utilization technology and approach thereof:
1, waste 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 DEG C, and UTILIZATION OF VESIDUAL HEAT IN is incomplete, also has very large recycling space.
2, the just basic energy recovery to residual heat resources of the waste heat recovery of 150～250 DEG C, the lifting that the energy quality of waste heat does not obtain, the efficiency of recovery is restricted (60～80%) also.
3, heating after the following waste heat recoveries of 40～60 DEG C and 150 DEG C, life/production and application limitation are larger, heating period finishes to can not get effective secondary utilization after rear most of waste 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 DEG C of scope UTILIZATION OF VESIDUAL HEAT IN and effectively 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 ".
Utility model content
The utility model has overcome the deficiency that prior art exists, a kind of low temperature exhaust heat energy conserving system that adopts many way of outputs is provided, for different cryogens, in conjunction with the device of difference in functionality section, realize heat to electric conversion, and in conversion process, realize energy lift, thereby realize the object that low taste can transform to GOOD TASTE.
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 energy conserving system that adopts many way of outputs, comprise phase-change heat-exchanger, low-temperature cogeneration device and hot pump in low temp, the smoke inlet of described phase-change heat-exchanger is connected with 150 DEG C of low-temperature flue gas device for transferring, the exhanst gas outlet of described phase-change heat-exchanger is connected with discharge flue, on described phase-change heat-exchanger, be connected with cycle heat exchange device, between described phase-change heat-exchanger and cycle heat exchange device, be connected by the heat exchanging pipe of circulation, high level heat in phase-change heat-exchanger is passed to cycle heat exchange device, and the Lowlevel thermal energy transmission in cycle heat exchange device is returned to phase-change heat-exchanger, described cycle heat exchange device is communicated with hot equipment and/or low-temperature cogeneration device medium entrance point with heating/life by heat transfer pipe, the high level heat passing over from phase-change heat-exchanger is passed to the hot equipment of heating/life and/or low-temperature cogeneration device by heat transfer pipe, the output of described low-temperature cogeneration device is electrically connected with consumer/user side, the media outlet end of described low-temperature cogeneration device is connected with the entrance point of hot pump in low temp, the port of export of described hot pump in low temp is connected with hot equipment with heating/life, after promoting into high level heat, the Lowlevel thermal energy that described hot pump in low temp is discharged the media outlet end of low-temperature cogeneration device supplies with the hot equipment of heating/life,
The structure of described low-temperature cogeneration device is: comprise expansion power generation machine, decompressor and reservoir, described expansion power generation machine, expander and reservoir are all arranged in housing, described decompressor is communicated with by circulation line with generator, work by expansion machine driving generator, described reservoir is connected with decompressor.
Described phase-change heat-exchanger is complex phase-change heat exchanger
.
In the heat exchanging pipe of the circulation of described cycle heat exchange device, be filled with fluorine class organic working medium, the temperature of described organic working medium is 70 DEG C～95 DEG C.
On described low-temperature cogeneration device, be provided with heat dissipation circulating system, on described heat dissipation circulating system, be connected with heat dissipation equipment, the Lowlevel thermal energy of the media outlet end of the heat of low-temperature cogeneration device self and/or low-temperature cogeneration device being discharged by described heat dissipation equipment falls apart, described hot pump in low temp is communicated with heat dissipation circulating system, and the Lowlevel thermal energy that can make the heat of low-temperature cogeneration device self and/or the media outlet end of low-temperature cogeneration device discharge enters hot pump in low temp without heat dissipation equipment.
The beneficial effect that the utility model compared with prior art has is: 150 DEG C 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 DEG C after heat exchange is directly drained, phase-change heat-exchanger passes to cycle heat exchange device by the heat exchanging pipe of circulation by high level heat, cycle heat exchange device both can directly directly export high level heat to the hot equipment of heating/life, also high level heat can be passed to low-temperature cogeneration device generates electricity, electric energy is directly supplied with consumer/user by low-temperature cogeneration device, the Lowlevel thermal energy of discharging from the media outlet end of low-temperature cogeneration device can directly fall apart by heat dissipation circulating system and the heat dissipation equipment of low-temperature cogeneration device self, also Lowlevel thermal energy can be passed to hot pump in low temp and carry out potential energy lifting, and the heat energy after potential energy lifting is directly offered to the hot equipment of heating/life, the utility model equipment is by the discarded flue gas of 150 DEG C, output heat energy--electric energy--heat energy, by the multiple way of output, improve the utilization ratio of low temperature exhaust heat.
Brief description of the drawings
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 hot pump in low temp, 4 is that cycle heat exchange device, 5 is that generator, 6 is that decompressor, 7 is that reservoir, 8 is housing.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, a kind of low temperature exhaust heat energy conserving system that adopts many way of outputs of the utility model, comprise phase-change heat-exchanger 1, low-temperature cogeneration device 2 and hot pump in low temp 3, the smoke inlet of described phase-change heat-exchanger 1 is connected with 150 DEG C of low-temperature flue gas device for transferring, the exhanst gas outlet of described phase-change heat-exchanger 1 is connected with discharge flue, on described phase-change heat-exchanger 1, be connected with cycle heat exchange device 4, between described phase-change heat-exchanger 1 and cycle heat exchange device 4, be connected by the heat exchanging pipe of circulation, high level heat in phase-change heat-exchanger 1 is passed to cycle heat exchange device 4, and the Lowlevel thermal energy transmission in cycle heat exchange device 4 is returned to phase-change heat-exchanger 1, described cycle heat exchange device 4 is communicated with hot equipment and/or low-temperature cogeneration device 2 medium entrance points with heating/life by heat transfer pipe, the high level heat passing over from phase-change heat-exchanger 1 is passed to the hot equipment of heating/life and/or low-temperature cogeneration device 2 by heat transfer pipe, the output of described low-temperature cogeneration device 2 is electrically connected with consumer/user side, the media outlet end of described low-temperature cogeneration device 2 is connected with the entrance point of hot pump in low temp 3, the port of export of described hot pump in low temp 3 is connected with hot equipment with heating/life, after promoting into high level heat, the Lowlevel thermal energy that described hot pump in low temp 3 is discharged the media outlet end of low-temperature cogeneration device 2 supplies with the hot equipment of heating/life,
The structure of described low-temperature cogeneration device 2 is: comprise expansion power generation machine 5, decompressor 6 and reservoir 7, described expansion power generation machine 5, expander 6 and reservoir 7 are all arranged in housing 8, described decompressor 6 is communicated with by circulation line with generator 5, drive generator 5 to work by decompressor 6, described reservoir 7 is connected with decompressor 6.
Described phase-change heat-exchanger 1 is complex phase-change heat exchanger
.
In the heat exchanging pipe of the circulation of described cycle heat exchange device 4, be filled with fluorine class organic working medium, the temperature of described organic working medium is 70 DEG C～95 DEG C.
On described low-temperature cogeneration device 2, be provided with heat dissipation circulating system, on described heat dissipation circulating system, be connected with heat dissipation equipment, the Lowlevel thermal energy of the media outlet end of the heat of low-temperature cogeneration device 2 self and/or low-temperature cogeneration device 2 being discharged by described heat dissipation equipment falls apart, described hot pump in low temp 3 is communicated with heat dissipation circulating system, and the Lowlevel thermal energy that can make the heat of low-temperature cogeneration device 2 self and/or the media outlet end of low-temperature cogeneration device 2 discharge enters hot pump in low temp 3 without heat dissipation equipment.
The course of work of the present utility model: 150 DEG C of discarded low-temperature flue gas enter phase-change heat-exchanger 1 and carry out heat exchange, after heat exchange, directly drain lower than the low-temperature flue gas of 50 DEG C, if phase-change heat-exchanger 1 breaks down, the low-temperature flue gas of 150 DEG C is directly drained without phase-change heat-exchanger 1, phase-change heat-exchanger 1 passes to cycle heat exchange device 4 by the heat exchanging pipe of circulation by high level heat, fluorine class organic working medium is housed in the circulating heat exchanging pipe between phase-change heat-exchanger 1 and cycle heat exchange device 4, by fluorine class organic working medium high efficient heat exchanging, can directly supply with hot equipment for heating/life while needing hot water (when warming or) from the hot water of cycle heat exchange device 4 interior heat absorptions, directly utilize heat energy, also can be 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 hot pump in low temp 3 by the low-temperature water heating after generating and carries out potential energy lifting, hot water supply hot equipment for heating/life after potential energy is promoted while needing hot water (when warming or), again utilize heat energy, if run into non-heating period, the Lowlevel thermal energy that low-temperature cogeneration device 2 also can be discharged the media outlet end of the heat of low-temperature cogeneration device 2 self and/or low-temperature cogeneration device 2 by the heat dissipation circulating system of self and heat dissipation equipment falls apart.
The utility model is by heat exchange, low temperature exhaust heat is directly utilized in the mode of heat energy, also can generate 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 hot pump in low temp 3, again utilize with the form of heat energy, by triple utilizations of heat energy-electric energy-heat energy, discarded low temperature exhaust heat is fully utilized, and has improved the utilization ratio of low temperature exhaust heat.
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 skill in the art, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (4)
1. one kind adopts the low temperature exhaust heat energy conserving system of many way of outputs, it is characterized in that: comprise phase-change heat-exchanger (1), low-temperature cogeneration device (2) and hot pump in low temp (3), the smoke inlet of described phase-change heat-exchanger (1) is connected with 150 DEG C of low-temperature flue gas device for transferring, the exhanst gas outlet of described phase-change heat-exchanger (1) is connected with discharge flue, on described phase-change heat-exchanger (1), be connected with cycle heat exchange device (4), between described phase-change heat-exchanger (1) and cycle heat exchange device (4), be connected by the heat exchanging pipe of circulation, high level heat in phase-change heat-exchanger (1) is passed to cycle heat exchange device (4), and the Lowlevel thermal energy transmission in cycle heat exchange device (4) is returned to phase-change heat-exchanger (1), described cycle heat exchange device (4) is communicated with hot equipment and/or low-temperature cogeneration device (2) medium entrance point with heating/life by heat transfer pipe, the high level heat passing over from phase-change heat-exchanger (1) is passed to the hot equipment of heating/life and/or low-temperature cogeneration device (2) by heat transfer pipe, the output of described low-temperature cogeneration device (2) is electrically connected with consumer/user side, the media outlet end of described low-temperature cogeneration device (2) is connected with the entrance point of hot pump in low temp (3), the port of export of described hot pump in low temp (3) is connected with hot equipment with heating/life, after promoting into high level heat, the Lowlevel thermal energy that described hot pump in low temp (3) is discharged the media outlet end of low-temperature cogeneration device (2) supplies with the hot equipment of heating/life,
The structure of described low-temperature cogeneration device (2) is: comprise expansion power generation machine (5), decompressor (6) and reservoir (7), described expansion power generation machine (5), expander (6) and reservoir (7) are all arranged in housing (8), described decompressor (6) is communicated with by circulation line with generator (5), drive generator (5) work by decompressor (6), described reservoir (7) is connected with decompressor (6).
2. a kind of low temperature exhaust heat energy conserving system that adopts many way of outputs according to claim 1, is characterized in that: described phase-change heat-exchanger (1) is complex phase-change heat exchanger
.
3. a kind of low temperature exhaust heat energy conserving system that adopts many way of outputs according to claim 1 and 2, it is characterized in that: in the heat exchanging pipe of the circulation of described cycle heat exchange device (4), be filled with fluorine class organic working medium, the temperature of described organic working medium is 70 DEG C～95 DEG C.
4. a kind of low temperature exhaust heat energy conserving system that adopts many way of outputs according to claim 3, it is characterized in that: on described low-temperature cogeneration device (2), be provided with heat dissipation circulating system, on described heat dissipation circulating system, be connected with heat dissipation equipment, the Lowlevel thermal energy of the media outlet end of the heat of low-temperature cogeneration device (2) self and/or low-temperature cogeneration device (2) being discharged by described heat dissipation equipment falls apart, described hot pump in low temp (3) is communicated with heat dissipation circulating system, the Lowlevel thermal energy that can make the heat of low-temperature cogeneration device (2) self and/or the media outlet end of low-temperature cogeneration device (2) discharge enters hot pump in low temp (3) without heat dissipation equipment.
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| CN201420405271.0U CN203980427U (en) | 2014-07-22 | 2014-07-22 | A kind of low temperature exhaust heat energy conserving system that adopts many way of outputs |
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| CN201420405271.0U CN203980427U (en) | 2014-07-22 | 2014-07-22 | A kind of low temperature exhaust heat energy conserving system that adopts many way of outputs |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882832A (en) * | 2019-03-21 | 2019-06-14 | 武汉钢铁有限公司 | A kind of the system of analysis and appraisal and flue gas waste heat recovery control system of fume afterheat |
-
2014
- 2014-07-22 CN CN201420405271.0U patent/CN203980427U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882832A (en) * | 2019-03-21 | 2019-06-14 | 武汉钢铁有限公司 | A kind of the system of analysis and appraisal and flue gas waste heat recovery control system of fume afterheat |
| CN109882832B (en) * | 2019-03-21 | 2020-11-10 | 武汉钢铁有限公司 | Flue gas waste heat evaluation and analysis system and flue gas waste heat recovery control system |
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| 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 |