CN103604251A - Double-arrangement type heat pump solar industrial boiler thermodynamic system and method thereof - Google Patents
Double-arrangement type heat pump solar industrial boiler thermodynamic system and method thereof Download PDFInfo
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- CN103604251A CN103604251A CN201310497791.9A CN201310497791A CN103604251A CN 103604251 A CN103604251 A CN 103604251A CN 201310497791 A CN201310497791 A CN 201310497791A CN 103604251 A CN103604251 A CN 103604251A
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Abstract
The invention discloses a double-arrangement type heat pump solar industrial boiler thermodynamic system and a method thereof. According to the double-arrangement type heat pump solar industrial boiler thermodynamic system, a demineralized water tank first inlet is connected with a make-up water pump and a first throttle valve; a demineralized water tank first outlet, a feed pump, a boiler high pressure vapor generator, a first level ejector first inlet and a second level ejector first inlet are sequentially connected; a demineralized water tank first outlet, a second throttle valve, a condensed type evaporator, a residual evaporator and a first level ejector second inlet are sequentially connected; a demineralized water tank third outlet, a third throttle valve, a solar thermal collector, a solar evaporator inlet and a second level ejector second inlet are sequentially connected; a condensate outlet of the solar evaporator is connected with a demineralized water tank second inlet; the residual evaporator and the solar evaporator are connected with a heat accumulator. The double-arrangement type heat pump solar industrial boiler thermodynamic system has the advantages of enabling more externally supplied steam to be generated under the same driving steam condition and improving an application ratio of solar energy due to individual function of a residual boiler and the solar energy and steam generated through series connection ejection and achieving appreciation of heat value due to the fact that low-grade heat energy of the solar energy and smoke discharging waste heat are converted into middle-grade heat energy for heat supply.
Description
Technical field
The present invention relates to a kind of pair and put formula heat pump solar energy Industrial Boiler therrmodynamic system and method thereof, belong to the technical field that clean energy resource utilizes.
Background technology
The world today is being faced with the problem of primary energy exhaustion day by day in short supply, greatly develops regenerative resource a new outlet is provided undoubtedly for this reason.China's land surface 9,600,000 km
2, occupying third place in the world, solar radiation ability is about 1.59 * 10
11kWh, is equivalent to that top is long-pending to be accepted every year solar energy and approximately have 69,000 hundred million tons of coals.During its sunshine in middle age, be slightly larger than 2200h, solar radiation total amount is higher than 5016MJ/m
2(a) area accounts for the more than 2/3 of national total area.Be equivalent to have every year hundred million tons of mark coals of 4500-5000 to obtain with solar energy techniques.Solar thermal utilization is the key areas of renewable energy utilization, and technology maturation, has a extensive future.At energy substitution, reduce and discharge, use safely etc. aspect with the obvious advantage.At present solar thermal utilization only only limits to low-temperature water heating device, and middle high temperature heat utilization not yet gets involved, the project that in industry, agricultural, business, high temperature utilizes without thunder also without raindrop.Hindering the most significant challenge of China's photo-thermal development is the not yet ripe localized photo-thermal comprehensive utilization technique that is applicable to large-scale promotion of Current Domestic, also there is no the integrated and operating experience of commercialization solar thermal utilization whole system.Solar energy is combined not only alternative boiler air feed and can also be utilized boiler flue afterbody waste heat recovery energy supporting for solar energy with boiler, energy-saving effect is more remarkable.
In solar energy thermal-power-generating, be divided into slot type, tower, dish formula.The large-scale production specification requirement of solar energy condenser lens field is high, and installation difficulty is larger, accounts for the more than 60% of whole system investment in solar heat power generation system, and therefore, developing low-cost, high efficiency solar energy condenser lens field are key points.Compare with above three kinds of Jing Chang, the required steel of slot type system unit area and glass mirror material are minimum, and cost is low, capacity is changeable, ground placement maintenance is easy for installation, and all concentrating collectors can synchronously be followed the tracks of, and cost reduces greatly.The features such as therefore, it is large that trough type solar power generation has scale, and the life-span is long, and cost is low, convenient for installation and maintenance.
Heat-pump-type solar biomass boiler is the another kind of form of heat-pump-type Industrial Boiler, is characterized in keeping the simple heat production characteristic of original boiler, utilizes heat pump techniques to combine with trough type solar heat-collector, makes system have the function that is directly converted to more heats.By improving the efficiency of system, increase substantially the thermal efficiency of pumping system.Heat pump utilizes steam generator to produce high-grade heat energy as power, changes the low grade heat energy of environment (solar energy) and used heat (smoke discharging residual heat) into middle taste heat energy that heat supply is used, thereby realizes " heat energy increment ".The double action of utilizing vapours recompression, can further reduce the demand of boiler high temperature high steam, thereby further reduce primary energy consumption.
Summary of the invention
The object of the invention is to improve the steam generator system thermal efficiency, promote clean energy resource utilization, a kind of high efficiency is provided, makes full use of two formula heat pump solar energy Industrial Boiler therrmodynamic system and methods thereof of putting that fume afterheat and regenerative resource (solar energy) reduce primary fuel consumption.
Two formula heat pump solar energy Industrial Boiler therrmodynamic systems of putting comprise feed pump, softening water tank, storage heater, residual evaporator, Boiler High Pressure steam generator, one-level heat pump injector, secondary heat pump injector, trough type solar heat-collector, solar still, condensing evaporimeter, small pump, magnetic valve, first throttle valve, the second choke valve, the 3rd choke valve, softening water tank the first entrance and small pump, first throttle valve is connected, softening water tank is provided with three outlets, the first outlet of softening water tank, feed pump, Boiler High Pressure steam generator, injector the first entrance, secondary heat pump injector the first entrance is connected in turn, the second outlet of softening water tank, the second choke valve, condensing evaporimeter, residual evaporator, injector the second entrance is connected in turn, the 3rd outlet of softening water tank, the 3rd choke valve, trough type solar heat-collector, solar still entrance, secondary heat pump injector the second entrance is connected in turn, the condensation-water drain of solar still is connected with softening water tank the second entrance through magnetic valve, residual evaporator, solar still is connected with storage heater respectively.
Two methods of putting formula heat pump solar energy Industrial Boiler therrmodynamic system are: the water that small pump extracts under normal temperature and pressure enters softening water tank, first via water in softening water tank provides power directly to enter Boiler High Pressure steam generator through feed pump, Boiler High Pressure steam generator is directly supplied with heat by fuel, thereby in boiler, produces the superheated vapour temperature T of HTHP
hfor 260-320 ℃, pressure P
hfor 1.5-2.5MPa, afterwards the water vapour of HTHP through pipeline enter one-level heat pump injector for; The second road water in softening water tank is to enter condensing evaporimeter through the second choke valve, utilizes the temperature T of discharging from boiler
y1for the high-temperature flue gas of 110-180 ℃ heats the water entering in condensing evaporimeter, exhaust gas temperature T
y2for 60-80 ℃, thereby take full advantage of fume afterheat, greatly reduce exhaust gas temperature and the waste heat loss of flue gas, the water of condensing evaporimeter of flowing through enters residual evaporator evaporation again and produces water vapour, in order to one-level injector, use, Third Road water in softening water tank directly passes in trough type solar heat-collector and heats, and produces temperature T
01for 140-180 ℃ high-temperature water enter solar still evaporation and produce temperature T
s 2for 180-200 ℃, pressure P
s 2the water vapour that is about 0.3-0.5MPa, the high temperature and high pressure steam in the relative Boiler High Pressure steam generator of temperature and pressure of the water vapour in evaporimeter is all low, therefore be called low temperature and low pressure steam; High temperature and high pressure steam sprays after entering one-level heat pump injector, thereby produces pressure differential, and the low-pressure steam in residual evaporator is sucked to one-level heat pump injector, and two parts steam converges, until one-level injector outlet steam enters secondary heat pump injector; After one-level injector outlet steam enters two-stage injection device, continue high velocity jet, the pressure differential of generation sucks two-stage injection device by the low temperature and low pressure water vapor in evaporimeter, thereby has realized converging of two parts steam, and final mixing produces temperature T
stfor 220-260 ℃, pressure P
stoutput steam output for 0.45-0.7MPa; Part water vapour in evaporimeter can be condensed into water, and these water are controlled and sent back to softening water tank by magnetic valve (12); In addition, residual evaporator is all connected a storage heater with solar still, and steam heat superfluous in running is stored in order to using.
Compared with prior art, the present invention has the following advantages:
1, the present invention utilizes separately respectively waste heat boiler and solar thermal collector to produce steam, by two-stage ejector tandem injection, mix to produce and meet the vapours that certain parameter requires, under the condition of identical driving steam (high temperature and high pressure steam), can produce more outer for steam.
2, the present invention adds storage heater, can unnecessary vapours heat be stored for future use according to the variation of output and demand, has further improved the thermal efficiency of system.
3, adopt trough type solar heat-collector to heat the water in hot water storage tank, take full advantage of the solar energy of cleanliness without any pollution, be conducive to environmental protection and sustainable development.
4, in the present invention, boiler discharging flue gas waste heat has been carried out to effective utilization, thereby reduced the temperature of fume emission, improved the thermal efficiency of boiler integral body.
5, injector used in the present invention can carry out different structural designs to equipment according to the parameter of high and low pressure steam, obtains the steam of various pressure ratings, meets different hot users' requirement.The low-pressure steam sucking by steam jet heat pump can be both the exhaust steam diffusing, and can be also the flash steam that condensate water produces, and low enthalpy heat energy is fully used, and reached the object of saving the energy.
6, the injector that the present invention uses can guarantee that pressure of steam supply is stable, has good practicality, and energy-saving benefit is remarkable.
Accompanying drawing explanation
The two main structure figure of formula heat pump solar energy Industrial Boiler therrmodynamic system that put of Fig. 1.
The specific embodiment
As shown in Figure 1, two formula heat pump solar energy Industrial Boiler therrmodynamic systems of putting comprise feed pump 1, softening water tank 2, storage heater 3, residual evaporator 4, Boiler High Pressure steam generator 5, one-level heat pump injector 6, secondary heat pump injector 7, trough type solar heat-collector 8, solar still 9, condensing evaporimeter 10, small pump 11, magnetic valve 12, first throttle valve 13, the second choke valve 14, the 3rd choke valve 15, softening water tank 2 first entrances and small pump 11, first throttle valve 13 is connected, softening water tank 2 is provided with three outlets, the first outlet of softening water tank 2, feed pump 1, Boiler High Pressure steam generator 5, injector 6 first entrances, secondary heat pump injector 7 first entrances are connected in turn, the second outlet of softening water tank 2, the second choke valve 14, condensing evaporimeter 10, residual evaporator 4, injector 6 second entrances are connected in turn, the 3rd outlet of softening water tank 2, the 3rd choke valve 15, trough type solar heat-collector 8, solar still 9 entrances, secondary heat pump injector 7 second entrances are connected in turn, the condensation-water drain of solar still 9 is connected with softening water tank 2 second entrances through magnetic valve 12, residual evaporator 4, solar still 9 is connected with storage heater 3 respectively.
In figure, Q
lfor fuel heat, Q
yfor boiler exhaust gas heat, Q
0for absorbing waste heat, Q
01for solar energy is for high-temperature-hot-water heat, Q
02for supplementing water is brought heat into, Q
hfor superheated steam heat, Q
02for supplementing water is brought heat into, Q
ffor solar energy heat absorbing amount, Q
stfor output steam heat, Q
st 1for one-level injector outlet steam heat, T
y1, T
y2be respectively flue gas import and export temperature, T
hfor boiler overheating steam temperature, P
hfor superheated steam pressure, T
0for demineralized water temperature, T
y0for hot water storage tank outlet temperature, T
stfor output vapor (steam) temperature, P
stfor output steam pressure, T
s 2for solar still vapor (steam) temperature, P
s 2for solar still steam pressure, G
wfor superheat steam flow, G
st 1for one-level injector outlet steam flow, G
st 2for output steam flow, G
s 1for one-level injector sucks steam flow, G
s 2for two-stage injection device sucks steam flow.
In system and device, described softening water tank 2 is respectively at being connected with Boiler High Pressure steam generator 5, condensing evaporimeter 10 and trough type solar heat-collector 8, feed pump 1 is installed for supplying water in the pipeline that softening water tank 2 is connected with Boiler High Pressure steam generator 5, in the pipeline that softening water tank 2 is connected with trough type solar heat-collector 8 with condensing evaporimeter 10, be separately installed with the second choke valve 14 and the 3rd choke valve 15 for adjust flux, for softening water tank 2, a small pump 11 be housed for moisturizing in addition.
Described condensing evaporimeter 10 is connected with smoke evacuation flue, and the part water being flowed out by softening water tank 2 enters residual evaporator 4 through condensing evaporimeter 10.
Described trough type solar heat-collector 8 is connected with solar still 9,, a part of water vapour in solar still 9 is inhaled into secondary heat pump injector 7, and a part of condensation is got off, and by condensation pipe, by magnetic valve 12, is controlled and is sent back to softening water tank 2.
Described Boiler High Pressure steam generator 5 is directly supplied water by feed pump 1, and is directly connected with one-level heat pump injector 6, and the high temperature and high pressure steam producing in boiler is sent in one-level heat pump injector 6.
Described one-level heat pump injector 6 entrance points are connected with residual evaporator 4 with high pressure steam generator 5 respectively by pipeline, and the port of export is connected with secondary heat pump injector 7.
Described secondary heat pump injector 7 entrance points are connected with solar still 8 with one-level heat pump injector 6 respectively by pipeline, and the port of export is exported steam by pipeline.
Described residual evaporator 4 is all connected with a storage heater 3 with solar still 9.
Two methods of putting formula heat pump solar energy Industrial Boiler therrmodynamic system are: the water that small pump 11 extracts under normal temperature and pressure enters softening water tank 2, first via water in softening water tank 2 provides power directly to enter Boiler High Pressure steam generator 5 through feed pump 1, Boiler High Pressure steam generator 5 is directly supplied with heat by fuel, thereby in boiler, produces the superheated vapour temperature T of HTHP
hfor 260-320 ℃, pressure P
hfor 1.5-2.5MPa, afterwards the water vapour of HTHP through pipeline enter one-level heat pump injector 6 for; The second road water in softening water tank 2 is to enter condensing evaporimeter 10 through the second choke valve 14, utilizes the temperature T of discharging from boiler
y1for the high-temperature flue gas of 110-180 ℃ heats the water entering in condensing evaporimeter 10, exhaust gas temperature T
y2for 60-80 ℃, thereby take full advantage of fume afterheat, greatly reduce exhaust gas temperature and the waste heat loss of flue gas, the water of condensing evaporimeter 10 of flowing through enters residual evaporator 4 evaporations again and produces water vapours, in order to one-level injector 6, use, Third Road water in softening water tank 2 directly passes in trough type solar heat-collector 8 and heats, and produces temperature T
01for 140-180 ℃ high-temperature water enter solar still 9 evaporation and produce temperature T
s 2for 180-200 ℃, pressure P
s 2the water vapour that is about 0.3-0.5MPa, the high temperature and high pressure steam in the relative Boiler High Pressure steam generator 5 of temperature and pressure of the water vapour in evaporimeter 9 is all low, therefore be called low temperature and low pressure steam; High temperature and high pressure steam sprays after entering one-level heat pump injector 6, thereby generation pressure differential, low-pressure steam in residual evaporator 4 is sucked to one-level heat pump injector 6, and two parts steam converges, until one-level injector outlet steam enters secondary heat pump injector 7; One-level injector 6 outlet steam enter the rear continuation high velocity jet of two-stage injection device 7, and the pressure differential of generation sucks two-stage injection device 7 by the low temperature and low pressure water vapor in evaporimeter 9, thereby has realized converging of two parts steam, and final mixing produces temperature T
stfor 220-260 ℃, pressure P
stoutput steam output for 0.45-0.7MPa; Part water vapour in evaporimeter 8 can be condensed into water, and these water are controlled and sent back to softening water tank 2 by magnetic valve 12; In addition, residual evaporator (4) is all connected a storage heater 3 with solar still 9, and steam heat superfluous in running is stored in order to using.
Embodiment
Below in conjunction with instantiation, the present invention is set forth, but can not limit by any way the present invention.
First order heat pump in this example drives steam parameter to be respectively: temperature T
h=300 ℃, pressure P=1.8Mpa, flow G
w=5t/h, suction steam parameter is temperature T
s 1=218 ℃, pressure P
s 1=0.49Mpa, flow G
s 1=3t/h, output steam parameter is temperature T
st 1=250 ℃, pressure P
st 1=0.98Mpa, flow G
st 1=8t/h.
Second level heat pump drives steam parameter to be respectively: drive steam parameter to be the steam parameter of heat pump output for the first time, suction steam parameter is temperature T
s 2=180 ℃, pressure P
s 2=0.3Mpa, flow G
s 2=4.48t/h, output steam parameter is temperature T st=230 ℃, pressure P
st=0.45Mpa, flow G
st=12.48t/h, externally air demand is 12.48t/h, single-stage heat pump energy-conserving △ E accounts for 20.8% relatively, illustrate that employing two-stage series connection injector can be under the condition of identical driving steam (high temperature and high pressure steam), can produce more outer for steam, further reduce primary energy consumption, increased clean energy resource (solar energy) proportion of utilization, further height system thermal efficiency.
Claims (2)
1. two put a formula heat pump solar energy Industrial Boiler therrmodynamic system, it is characterized in that comprising feed pump (1), softening water tank (2), storage heater (3), residual evaporator (4), Boiler High Pressure steam generator (5), one-level heat pump injector (6), secondary heat pump injector (7), trough type solar heat-collector (8), solar still (9), condensing evaporimeter (10), small pump (11), magnetic valve (12), first throttle valve (13), the second choke valve (14), the 3rd choke valve (15), softening water tank (2) first entrances and small pump (11), first throttle valve (13) is connected, softening water tank (2) is provided with three outlets, the first outlet of softening water tank (2), feed pump (1), Boiler High Pressure steam generator (5), injector (6) first entrances, secondary heat pump injector (7) first entrances are connected in turn, the second outlet of softening water tank (2), the second choke valve (14), condensing evaporimeter (10), residual evaporator (4), injector (6) second entrances are connected in turn, the 3rd outlet of softening water tank (2), the 3rd choke valve (15), trough type solar heat-collector (8), solar still (9) entrance, secondary heat pump injector (7) second entrances are connected in turn, the condensation-water drain of solar still (9) is connected with softening water tank (2) second entrances through magnetic valve (12), residual evaporator (4), solar still (9) is connected with storage heater (3) respectively.
2. one kind is used two methods of putting formula heat pump solar energy Industrial Boiler therrmodynamic system of system as claimed in claim 1, it is characterized in that the water first being extracted under normal temperature and pressure by small pump (11) enters softening water tank (2), first via water in softening water tank (2) provides power directly to enter Boiler High Pressure steam generator (5) through feed pump (1), Boiler High Pressure steam generator (5) is directly supplied with heat by fuel, thereby in boiler, produces the superheated vapour temperature T of HTHP
hfor 260-320 ℃, pressure P
hfor 1.5-2.5MPa, afterwards the water vapour of HTHP through pipeline enter one-level heat pump injector (6) for; The second road water in softening water tank (2) is to enter condensing evaporimeter (10) through the second choke valve (14), utilizes the temperature T of discharging from boiler
y1for the high-temperature flue gas of 110-180 ℃ heats the water entering in condensing evaporimeter (10), exhaust gas temperature T
y2for 60-80 ℃, thereby take full advantage of fume afterheat, greatly reduce exhaust gas temperature and the waste heat loss of flue gas, the water of condensing evaporimeter (10) of flowing through enters residual evaporator (4) evaporation again and produces water vapour, in order to one-level injector (6), use, Third Road water in softening water tank (2) directly passes in trough type solar heat-collector (8) and heats, and produces temperature T
01for 140-180 ℃ high-temperature water enter solar still (9) evaporation and produce temperature T
s 2for 180-200 ℃, pressure P
s 2for the water vapour of 0.3-0.5MPa, the high temperature and high pressure steam in the relative Boiler High Pressure steam generator of temperature and pressure (5) of the water vapour in evaporimeter (9) is all low, therefore be called low temperature and low pressure steam; High temperature and high pressure steam sprays after entering one-level heat pump injector (6), thereby generation pressure differential, low-pressure steam in residual evaporator (4) is sucked to one-level heat pump injector (6), and two parts steam converges, until one-level injector outlet steam enters secondary heat pump injector (7); After entering two-stage injection device (7), one-level injector (6) outlet steam continues high velocity jet, the pressure differential producing sucks two-stage injection device (7) by the low temperature and low pressure water vapor in evaporimeter (9), thereby realized converging of two parts steam, final mixing produces temperature T
stfor 220-260 ℃, pressure P
stoutput steam output for 0.45-0.7MPa; Part water vapour in evaporimeter (8) can be condensed into water, and these water are controlled and sent back to softening water tank (2) by magnetic valve (12); In addition, residual evaporator (4) is all connected a storage heater (3) with solar still (9), and steam heat superfluous in running is stored in order to using.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310497791.9A CN103604251B (en) | 2013-10-22 | 2013-10-22 | Put formula heat pump solar energy Industrial Boiler therrmodynamic system and method thereof for a kind of pair |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310497791.9A CN103604251B (en) | 2013-10-22 | 2013-10-22 | Put formula heat pump solar energy Industrial Boiler therrmodynamic system and method thereof for a kind of pair |
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| CN103604251A true CN103604251A (en) | 2014-02-26 |
| CN103604251B CN103604251B (en) | 2015-10-07 |
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Citations (5)
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| KR100619444B1 (en) * | 2005-04-07 | 2006-09-06 | (주)이앤이 시스템 | Chilled water storage type hybrid heating and cooling system using a solar heat system |
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| CN103175333A (en) * | 2011-12-21 | 2013-06-26 | 广西大学 | Central air conditioner combining solar energy ejecting cooling system |
| CN203629138U (en) * | 2013-10-22 | 2014-06-04 | 浙江大学 | Solar heat pump and industrial boiler dual-arrangement type thermodynamic system |
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2013
- 2013-10-22 CN CN201310497791.9A patent/CN103604251B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100619444B1 (en) * | 2005-04-07 | 2006-09-06 | (주)이앤이 시스템 | Chilled water storage type hybrid heating and cooling system using a solar heat system |
| CN102393097A (en) * | 2011-11-19 | 2012-03-28 | 中能东讯新能源科技(大连)有限公司 | Commercial/civil solar jet central air conditioning system |
| CN103175333A (en) * | 2011-12-21 | 2013-06-26 | 广西大学 | Central air conditioner combining solar energy ejecting cooling system |
| CN202792191U (en) * | 2012-09-19 | 2013-03-13 | 昆明理工大学 | Solar central hot water system heated by air source heat pump and boiler heating in auxiliary manner |
| CN203629138U (en) * | 2013-10-22 | 2014-06-04 | 浙江大学 | Solar heat pump and industrial boiler dual-arrangement type thermodynamic system |
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Effective date of registration: 20191025 Address after: 310018 Room 2007-9, 2 Building of East Hangzhou International Business Center, Jianggan District, Hangzhou City, Zhejiang Province, Hangzhou Economic and Technological Development Zone Patentee after: Zhejiang Zhongguang New Energy Technology Co., Ltd. Address before: 310027 Hangzhou, Zhejiang Province, Xihu District, Zhejiang Road, No. 38, No. Patentee before: Zhejiang University |