CN101943470A - Novel absorption gas-water heat exchange unit - Google Patents
Novel absorption gas-water heat exchange unit Download PDFInfo
- Publication number
- CN101943470A CN101943470A CN2009100892099A CN200910089209A CN101943470A CN 101943470 A CN101943470 A CN 101943470A CN 2009100892099 A CN2009100892099 A CN 2009100892099A CN 200910089209 A CN200910089209 A CN 200910089209A CN 101943470 A CN101943470 A CN 101943470A
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- water
- absorption
- heat pump
- heat
- air
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 110
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 81
- 239000006096 absorbing agent Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 20
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 9
- 239000012141 concentrate Substances 0.000 claims description 7
- 229940059936 lithium bromide Drugs 0.000 claims description 7
- 238000010010 raising Methods 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 description 26
- 239000007789 gas Substances 0.000 description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 25
- 239000003517 fume Substances 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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Classifications
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
Abstract
The invention belongs to the field of application of energy technology, and particularly relates to a novel absorption gas-water heat exchange unit, which consists of an absorption heat pump, a gas-water heat exchanger and various connecting pipelines and accessories. A connecting pipeline system is divided into two parts which are a primary side pipeline and a secondary side pipeline, wherein a medium in the primary side pipeline is a high-temperature gas which sequentially passes through a generator of the absorption heat pump, the gas-water heat exchanger and an evaporator of the absorption heat pump, while the medium in the secondary side pipeline is water which sequentially passes through an absorber and a condenser of the absorption heat pump and the gas-water heat exchanger. The primary side gas of the heat exchange unit sequentially passes through the generator of the absorption heat pump, the gas-water heat exchanger and the evaporator of the absorption heat pump to perform cascade utilization on the heat of the gas so as to greatly reduce gas side temperature and improve the utilization rate of energy sources; and the temperature of the gas discharged out of the heat exchange unit from a primary side is lower than that of the water entering from a secondary side, which cannot be realized for the conventional heat exchangers.
Description
Technical field
The invention belongs to the energy technology application, particularly a kind of novel absorption air-water heat exchange unit that can reduce gas temperature significantly.
Background technology
Along with people to the understanding of resource-constrained and the enhancing of environmental protection consciousness, the cascade utilization of the energy becomes one of to attach most importance to.No matter, a large amount of can not being fully used such as gaseous state residual heat resources such as flue gases often arranged at industrial circle or energy field.For example, in present many process systems or the energy resource system, the exhaust gas temperature of flue gas is about more than 100 ℃, not only taken away most of sensible heat in this part flue gas, simultaneously its latent heat is not fully utilized yet, this is because exhaust gas temperature is subjected to the restriction that the user locates heat request, utilize conventional heat exchanger can't reduce again, therefore, how further to reduce the temperature that smoke evacuation waits the gas thermal source, realize the cascade utilization of the energy, realize effects of energy saving and emission reduction, will produce far-reaching influence, significant.
Summary of the invention
In order to solve deficiency of the prior art, the present invention provides a kind of especially gas energies such as flue gas is carried out cascade utilization, reduce gas temperature significantly, and can satisfy the heating of instructions for use or domestic hot-water's novel absorption air-water heat exchange unit in the secondary side generation, described unit is by absorption heat pump 1, air-water heat exchanger 2 and various connecting line and annex are formed, it is characterized in that, described connecting line system is divided into primary side pipeline and secondary side pipeline two parts: the medium in the primary side pipeline is a high-temperature gas, and high-temperature gas passes through the generator 11 of absorption heat pump 1 successively, air-water heat exchanger 2, the evaporimeter 12 of absorption heat pump 1; Medium in the secondary side pipeline is a water, passes through absorber 13 and the condenser 14 and the air-water heat exchanger 2 of absorption heat pump 1 successively.
Described primary side pipe-line system, high-temperature gas at first enters in the generator 11 of absorption heat pump 1 as driving heat source, heating concentrates lithium-bromide solution, enter air-water heat exchanger 2 after the cooling as the heating thermal source, the hot water backwater of heating low temperature side, discharge from air-water heat exchanger 2 the cooling back, directly enters the low level heat energy of the evaporimeter 12 of absorption heat pump 1 as absorption heat pump 1, cooling back discharge system; In the secondary side water circuit system, water is delivered to the user after absorbing heat and heating up in absorber 11, condenser 14 and the gas-water heat exchanger of absorption heat pump 1.
The mode of independent, in parallel or series connection that described secondary side pipeline adopts, independent mode is after the moisture two-way of the two kinds of different parameters in secondary side water route enters absorption heat pump 1 gentle-water-to-water heat exchanger 2 heat temperature raisings respectively, the hot water of two kinds of different parameters of output; Parallel way is after the moisture two-way in secondary side water route enters absorption heat pump 1 gentle-water-to-water heat exchanger 2 heat temperature raisings respectively, to converge to a place again and be transported to the user; Series system is that the water in secondary side water route is introduced into absorption heat pump 1 heat absorption intensification, enters air-water heat exchanger 2 heat temperature raisings again, is transported to the user then.
After the generator 11 of the high-temperature gas passes absorption heat pump 1 of described primary side pipeline is discharged,, directly enter in the evaporimeter 12 of absorption heat pump 1 without air-water heat exchanger 2; For the secondary side water circuit system, water heat absorption in the absorber 13 of absorption heat pump 1, condenser 14 is sent to the user after heating up.
After the generator 11 of the high-temperature gas passes absorption heat pump 1 of described primary side pipeline is discharged, make the cryogen indirect heat exchange of 12 li in the evaporimeter of high-temperature gas and absorption heat pump 1, cooling discharge afterwards system by intermediate medium.
Described intermediate medium comprises water as refrigerant and heat exchange of heat pipe.
Beneficial effect of the present invention is: the heat exchange unit that above-mentioned type of attachment constituted that the present invention adopts, also can be applied to other industrial gasses waste heat degree of depth reclaims, for low-grade gas heat energy even used heat waste heat have been created condition, realized the cascade utilization of the energy, reduced pollutant discharge amount simultaneously, and the gas temperature that primary side goes out the heat exchange unit can be lower than the inflow temperature of secondary side, and this can't realize for conventional heat exchanger.
Description of drawings
Fig. 1 is first kind of connected mode schematic flow sheet of the present invention;
Fig. 2 is the structural representation of absorption heat pump;
Fig. 3 is second kind of connected mode schematic flow sheet of the present invention;
Fig. 4 is the third connected mode schematic flow sheet of the present invention;
Fig. 5 is the 4th kind of connected mode schematic flow sheet of the present invention;
Fig. 6 is an indirect heat exchange mode schematic flow sheet of the present invention.
Number in the figure:
The 1-absorption heat pump; 2-air-water heat exchanger; The 2a-Intermediate Heat Exchanger; A-primary side high-temperature gas pipeline;
B-primary side gas exhaust piping; C-secondary side hot water backwater pipeline; D-secondary side hot water feeding pipe road;
The 11-generator; The 12-evaporimeter; The 13-absorber; The 14-condenser.
The specific embodiment
The invention provides a kind of novel absorption air-water heat exchange unit, the present invention will be further described below by description of drawings and the specific embodiment.
Embodiment 1:
Fig. 1 is first kind of connected mode schematic flow sheet of the present invention, and unit is made up of absorption heat pump 1, air-water heat exchanger 2 and various connecting line and annex, and the secondary side pipeline is the mode of working alone.The connecting line of described unit is divided into primary side pipeline and secondary side pipeline two parts, and primary side pipeline medium is a flue gas, and secondary side pipeline medium is a water.In the actual motion, the high-temperature flue gas that fume side is about 530 ℃ at first enters absorption type heat pump assembly 1 as driving heat source by primary side high-temperature gas pipeline a, heating concentrates lithium-bromide solution in its generator 11, from absorption heat pump 1, discharge when being cooled to 210 ℃ of left and right sides, 210 ℃ flue gas enters air-water heat exchanger 2 as the heating thermal source, after being cooled to 70 ℃, from the air-water heat exchanger, discharge, 70 ℃ flue gas returns absorption heat pump 1 again as low level heat energy, is cooled to about 30 ℃ back by primary side gas exhaust piping b discharge heat exchange unit in its evaporimeter 12; The hot water backwater of the hot water backwater that secondary side is 45 ℃ and 40 ℃ divides two route secondary side hot water backwater pipeline c to enter absorption heat pump 1 gentle-water-to-water heat exchanger 2 respectively, 45 ℃ hot water backwater absorbs heat in the absorber 13 of absorption heat pump 1 and condenser 14, flow out by secondary side hot water feeding pipe road d after being heated to 60 ℃, the hot water backwater that another road is 40 ℃ carries out heat exchange with the primary side flue gas in air-water heat exchanger 2, flowed out by secondary side hot water feeding pipe road d after being heated to 55 ℃, two-way hot water is delivered to the user respectively.
Embodiment 2:
Fig. 3 is second kind of connected mode schematic flow sheet of the present invention, and unit is made up of absorption heat pump 1, air-water heat exchanger 2 and various connecting line and annex, and the secondary side pipeline is the parallel operation mode.The connecting line of described unit is divided into primary side pipeline and secondary side pipeline two parts, and primary side pipeline medium is a flue gas, and secondary side pipeline medium is a water.In the actual motion, the high-temperature flue gas that fume side is about 530 ℃ at first enters absorption type heat pump assembly 1 as driving heat source by primary side high-temperature gas pipeline a, heating concentrates lithium-bromide solution in its generator 11, from absorption heat pump 1, discharge when being cooled to 210 ℃ of left and right sides, 210 ℃ flue gas enters air-water heat exchanger 2 as the heating thermal source, after being cooled to 70 ℃, from the air-water heat exchanger, discharge, 70 ℃ flue gas returns absorption heat pump 1 again as low level heat energy, is cooled to about 30 ℃ back by primary side gas exhaust piping b discharge heat exchange unit in its evaporimeter 12; The hot water backwater that secondary side is 45 ℃ divides two route secondary side hot water backwater pipeline c to enter unit, one the tunnel enters absorption heat pump 1, in its absorber 13 and condenser 14, absorb heat, be heated to back outflow about 60 ℃, another road enters air-water heat exchanger 2, carry out heat exchange with the primary side flue gas, flow out after being heated to 60 ℃, the hot water that two-way is 60 ℃ is delivered to the user after being converged by the d water outlet of secondary side hot water feeding pipe road.
Embodiment 3:
Fig. 4 is the third connected mode schematic flow sheet of the present invention, and unit is made up of absorption heat pump 1, air-water heat exchanger 2 and various connecting line and annex, and the secondary side pipeline is the tandem working mode.The connecting line of described unit is divided into primary side pipeline and secondary side pipeline two parts, and the medium in the primary side pipeline is a flue gas, and the medium in the secondary side pipeline is a water.In the actual motion, the high-temperature flue gas that fume side is about 530 ℃ at first enters absorption type heat pump assembly 1 as driving heat source by primary side high-temperature gas pipeline a, heating concentrates lithium-bromide solution in its generator 11, from absorption heat pump 1, flow out when being cooled to 210 ℃ of left and right sides, 210 ℃ flue gas enters air-water heat exchanger 2 as the heating thermal source, when being cooled to 70 ℃, from the air-water heat exchanger, discharge, 70 ℃ flue gas returns absorption heat pump 1 again as low level heat energy, is cooled to about 30 ℃ back by primary side gas exhaust piping b discharge heat exchange unit in its evaporimeter 12; The hot water backwater that secondary side is 45 ℃ enters absorption heat pump 1 by secondary side hot water backwater pipeline c, in its absorber 13 and condenser 14, absorb heat, be heated to back outflow about 57 ℃, enter air-water heat exchanger 2 again, carry out heat exchange with the primary side flue gas, deliver to the user by secondary side hot water feeding pipe road d after being heated to 60 ℃.
Embodiment 4:
Fig. 5 is the 4th kind of connected mode schematic flow sheet of the present invention, and the connecting line of described unit is divided into primary side pipeline and secondary side pipeline two parts, and the medium in the primary side pipeline is a flue gas, and the medium in the secondary side pipeline is a water.In the actual motion, the high-temperature flue gas that fume side is about 530 ℃ at first enters absorption type heat pump assembly 1 as driving heat source by primary side high-temperature gas pipeline a, heating concentrates lithium-bromide solution in its generator 11, from absorption heat pump 1, flow out when being cooled to 130 ℃ of left and right sides, 130 ℃ flue gas enters absorption heat pump 1 as low level heat energy, is cooled to about 30 ℃ back by primary side gas exhaust piping b discharge heat exchange unit in its evaporimeter 12; The hot water backwater that secondary side is 45 ℃ enters absorption heat pump 1 by secondary side hot water backwater pipeline c, absorbs heat in its absorber 13 and condenser 14, delivers to the user by secondary side hot water feeding pipe road d after being heated to 60 ℃.
Embodiment 5:
Fig. 6 is an indirect heat exchange mode schematic flow sheet of the present invention, unit has been set up the Intermediate Heat Exchanger 2a that adopts heat exchange of heat pipe in evaporimeter 12 sides of absorption heat pump 1, the secondary side pipeline is the parallel operation mode, the high-temperature flue gas that fume side is about 530 ℃ at first enters absorption type heat pump assembly 1 as driving heat source by primary side high-temperature gas pipeline a, heating concentrates lithium-bromide solution in its generator 11, from absorption heat pump 1, discharge when being cooled to 210 ℃ of left and right sides, 210 ℃ flue gas enters air-water heat exchanger 2 as the heating thermal source, be cooled to 70 ℃, 70 ℃ flue gas passes through Intermediate Heat Exchanger 2a again, with the heat exchange of intermediate medium water, discharge by primary side gas exhaust piping b after being cooled to about 30 ℃, intermediate medium water is sent in the absorption heat pump 1 heat as low level heat energy, turns back among the Intermediate Heat Exchanger 2a after the cooling in its evaporimeter 12; The hot water backwater that secondary side is 45 ℃ divides two-way to enter unit by secondary side hot water backwater pipeline c, one the tunnel enters absorption heat pump 1, in its absorber 13 and condenser 14, absorb heat, be heated to back outflow about 60 ℃, another road enters air-water heat exchanger 2, carry out heat exchange with the primary side flue gas, flow out after being heated to 60 ℃, the hot water effluent that two-way is 60 ℃ converges the back and delivers to the user by secondary side hot water feeding pipe road d.
Above embodiment is the several more excellent embodiments of the present invention, and those skilled in the art can make any modification within the scope of the claims.
Claims (6)
1. novel absorption air-water heat exchange unit, described unit is made up of absorption heat pump (1), air-water heat exchanger (2) and various connecting line and annex, it is characterized in that, described connecting line system is divided into primary side pipeline and secondary side pipeline two parts: the medium in the primary side pipeline is a high-temperature gas, and high-temperature gas passes through generator (11), the air-water heat exchanger (2) of absorption heat pump (1), the evaporimeter (12) of absorption heat pump (1) successively; Medium in the secondary side pipeline is a water, passes through absorber (13) and the condenser (14) and the air-water heat exchanger (2) of absorption heat pump (1) successively.
2. a kind of novel absorption air-water heat exchange unit according to claim 1, it is characterized in that, described primary side pipe-line system, high-temperature gas at first enters in the generator (11) of absorption heat pump (1) as driving heat source, heating concentrates lithium-bromide solution, enter air-water heat exchanger (2) after the cooling as the heating thermal source, the hot water backwater of heating low temperature side, discharge from air-water heat exchanger (2) the cooling back, directly enter the low level heat energy of the evaporimeter (12) of absorption heat pump (1), cooling back discharge system as absorption heat pump (1); In the secondary side water circuit system, water is delivered to the user after absorbing heat and heating up in absorber (13), condenser (14) and the gas-water heat exchanger of absorption heat pump (1).
3. a kind of novel absorption air-water heat exchange unit according to claim 1, it is characterized in that, described secondary side pipeline adopts the mode of independence, parallel connection or series connection, independent mode be the moisture two-way of the two kinds of different parameters in secondary side water route enter respectively absorption heat pump (1) gentle-water-to-water heat exchanger (2) heat temperature raising after, output two kinds of different parameters hot water; Parallel way be the moisture two-way in secondary side water route enter respectively absorption heat pump (1) gentle-water-to-water heat exchanger (2) heat temperature raising after, converge to a place again and be transported to the user; Series system is that the water in secondary side water route is introduced into absorption heat pump (1) heat absorption intensification, enters air-water heat exchanger (2) heat temperature raising again, is transported to the user then.
4. a kind of novel absorption air-water heat exchange unit according to claim 1, it is characterized in that, after the generator (11) of the high-temperature gas passes absorption heat pump (1) of described primary side pipeline is discharged, without air-water heat exchanger (2), directly enter in the evaporimeter (12) of absorption heat pump (1); For the secondary side water circuit system, water heat absorption in the absorber (13) of absorption heat pump (1), condenser (14) is sent to the user after heating up.
5. a kind of novel absorption air-water heat exchange unit according to claim 1, it is characterized in that, after the generator (11) of the high-temperature gas passes absorption heat pump (1) of described primary side pipeline is discharged, make the cryogen indirect heat exchange of evaporimeter (12) lining of high-temperature gas and absorption heat pump (1) by intermediate medium, cooling back discharge system.
6. a kind of novel absorption air-water heat exchange unit according to claim 5 is characterized in that described intermediate medium comprises water as refrigerant and heat exchange of heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100892099A CN101943470B (en) | 2009-07-09 | 2009-07-09 | Novel absorption gas-water heat exchange unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100892099A CN101943470B (en) | 2009-07-09 | 2009-07-09 | Novel absorption gas-water heat exchange unit |
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| Publication Number | Publication Date |
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| CN101943470A true CN101943470A (en) | 2011-01-12 |
| CN101943470B CN101943470B (en) | 2013-12-04 |
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| CN2009100892099A Active CN101943470B (en) | 2009-07-09 | 2009-07-09 | Novel absorption gas-water heat exchange unit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269442A (en) * | 2011-07-13 | 2011-12-07 | 清华大学 | Heating system utilizing heat pump technology to improve heating capacity of central heating pipe network |
| CN103512075A (en) * | 2013-09-25 | 2014-01-15 | 清华大学 | Absorption heat exchanger unit combined with boiler |
| CN104879818A (en) * | 2015-04-24 | 2015-09-02 | 珠海格力电器股份有限公司 | Heat exchange unit |
| CN108050731A (en) * | 2017-11-29 | 2018-05-18 | 华北电力大学 | A kind of flue gas drives residual heat recovery type absorption heat pump |
| CN108050725A (en) * | 2017-10-23 | 2018-05-18 | 西安交通大学 | A kind of industrial afterheat recovery system of integrated multi-heat source heat pump |
| CN108458512A (en) * | 2018-03-13 | 2018-08-28 | 中铁工程设计咨询集团有限公司 | A kind of carbon dioxide air source heat pump system |
| CN108507220A (en) * | 2017-02-28 | 2018-09-07 | 远大空调有限公司 | A kind of lithium bromide absorption cold but unit and its type of cooling |
| CN109163477A (en) * | 2018-08-03 | 2019-01-08 | 西安交通大学 | A kind of absorption type heat pump system of gas fired-boiler fume afterheat and condensate-water polishing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1188641C (en) * | 2001-12-17 | 2005-02-09 | 清华大学 | Direct burning adsorption type cold and warm water machine set |
| CN100470167C (en) * | 2008-02-28 | 2009-03-18 | 清华大学 | Heat pump type heat exchanging unit |
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2009
- 2009-07-09 CN CN2009100892099A patent/CN101943470B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269442A (en) * | 2011-07-13 | 2011-12-07 | 清华大学 | Heating system utilizing heat pump technology to improve heating capacity of central heating pipe network |
| CN102269442B (en) * | 2011-07-13 | 2013-08-21 | 清华大学 | Heating system utilizing heat pump technology to improve heating capacity of central heating pipe network |
| CN103512075A (en) * | 2013-09-25 | 2014-01-15 | 清华大学 | Absorption heat exchanger unit combined with boiler |
| CN103512075B (en) * | 2013-09-25 | 2016-06-15 | 清华大学 | A kind of absorption heat exchange unit being combined with boiler |
| CN104879818A (en) * | 2015-04-24 | 2015-09-02 | 珠海格力电器股份有限公司 | Heat exchange unit |
| CN104879818B (en) * | 2015-04-24 | 2018-03-30 | 珠海格力电器股份有限公司 | Heat-exchange unit |
| CN108507220A (en) * | 2017-02-28 | 2018-09-07 | 远大空调有限公司 | A kind of lithium bromide absorption cold but unit and its type of cooling |
| CN108050725A (en) * | 2017-10-23 | 2018-05-18 | 西安交通大学 | A kind of industrial afterheat recovery system of integrated multi-heat source heat pump |
| CN108050731A (en) * | 2017-11-29 | 2018-05-18 | 华北电力大学 | A kind of flue gas drives residual heat recovery type absorption heat pump |
| CN108458512A (en) * | 2018-03-13 | 2018-08-28 | 中铁工程设计咨询集团有限公司 | A kind of carbon dioxide air source heat pump system |
| CN109163477A (en) * | 2018-08-03 | 2019-01-08 | 西安交通大学 | A kind of absorption type heat pump system of gas fired-boiler fume afterheat and condensate-water polishing |
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| Publication number | Publication date |
|---|---|
| CN101943470B (en) | 2013-12-04 |
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