CN203757824U - Heat supply system capable of reducing return water temperature of primary network - Google Patents
Heat supply system capable of reducing return water temperature of primary network Download PDFInfo
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- CN203757824U CN203757824U CN201420114234.4U CN201420114234U CN203757824U CN 203757824 U CN203757824 U CN 203757824U CN 201420114234 U CN201420114234 U CN 201420114234U CN 203757824 U CN203757824 U CN 203757824U
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 102
- 238000010438 heat treatment Methods 0.000 claims description 87
- 230000008676 import Effects 0.000 claims description 38
- 239000006096 absorbing agent Substances 0.000 claims description 11
- 239000002918 waste heat Substances 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 10
- 239000008400 supply water Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
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- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a heat supply system capable of reducing the return water temperature of a primary network. The heat supply system is characterized by comprising a primary hot water pipeline, a secondary hot water heat supply network, an absorption heat pump, an electrically-driven heat pump and a heat source, the primary hot water pipeline comprises a primary water supply pipeline and a primary water return pipeline, the secondary hot water heat supply network comprises a first water return pipeline, a second water return pipeline, a first water supply pipe and a second water supply pipe, the absorption heat pump is arranged at the end close to the heat source, the electrically-driven heat pump is arranged at the end away from the heat source, the outlet end of the heat source is connected with the absorption heat pump through the primary water supply pipeline and a pipe, the absorption heat pump is connected with the electrically-driven heat pump through a pipe, the electrically-driven heat pump is connected with the inlet end of the heat source through a pipe and the primary water return pipeline, the absorption heat pump is connected with the secondary hot water heat supply network through a pipe, the first water supply pipeline and the first water return pipeline, and the electrically-driven heat pump is connected with the secondary hot water heat supply network through a pipe, the second water supply pipeline and the second water return pipeline. The heat supply system capable of reducing the return water temperature of the primary network can be widely applied to waste heat recovery.
Description
Technical field
The utility model relates to a kind of central heating system, particularly about a kind of heating system that can reduce a secondary net return water temperature.
Background technology
Along with the quick propelling of urbanization process, concentrated supply of heating in the city area constantly increases, and causes the deficiency of central heating thermal source capacity.The pollution that middle and small burn coal boiler room causes atmosphere is very serious, and development is very limited, and newly-built regional boiler room investment is high, and the construction period is long, and is subject to equally the restriction of environmental carrying capacity; Consider the nervous present situation of combustion gas, power generation and supply, most cities is also not suitable for adopting the mode of combustion gas or electric power to carry out central heating.Heat source is in short supply has become problem demanding prompt solution in the central heating of many North Cities.
On the other hand, in City's Construction And Development process, there is a large amount of low temperature exhaust heats to produce, the low temperature exhaust heat for example producing in exhaust steam in steam turbine in the power generation process of thermal power plant, the low temperature exhaust heat producing in the low temperature exhaust heat producing on many production lines in the industry such as metallurgy, petrochemical industry and cement manufacture and sanitary sewage disposal process etc.The heat of these waste heats is huge but quality (temperature) is not high, and because existing residual neat recovering system heat-exchange capacity is lower, a large amount of cities waste heat is not effectively utilized.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of heating system of utilizing source pump can reduce a secondary net return water temperature.This system not only can be alleviated the problem that concentrated supply of heating in the city thermal source is in short supply, improves city utilization rate of waste heat, can also increase substantially the water conveyance and distribution capacity of central heating network simultaneously.
For achieving the above object, the utility model is taked following technical scheme: a kind of heating system that can reduce a secondary net return water temperature, is characterized in that: it comprises hot water line, secondary hot water's heating network, absorption heat pump, electric drive heat pump and thermal source one time; A described hot water line comprises supply channel and primary water pipeline, and described secondary hot water's heating network comprises first strand and second strand of water return pipeline, first strand and second strand of supply channel; Described absorption heat pump is arranged on near-thermal source, and described electric drive heat pump is arranged on described heat source side far away; The described thermal source port of export is connected with the first arrival end of described absorption heat pump with pipeline by a described supply channel, first port of export of described absorption heat pump is connected with the first arrival end of described electric drive heat pump by pipeline, and first port of export of described electric drive heat pump is connected with described thermal source arrival end with described primary water pipeline by pipeline; The second arrival end of described absorption heat pump is connected with the first outlet of described secondary hot water's heating network with described first strand of water return pipeline by pipeline successively, and second port of export of described absorption heat pump is connected with the first import of described secondary hot water's heating network with described first strand of supply channel by pipeline successively; The second arrival end of described electric drive heat pump is connected with the second outlet of described secondary hot water's heating network with described second strand of water return pipeline by pipeline successively, and second port of export of described electric drive heat pump is connected with the second import of described secondary hot water's heating network with described second strand of supply channel by pipeline successively.
Described absorption heat pump comprises absorption heat pump generator, absorption heat pump evaporimeter, absorption heat pump absorber and absorption heat pump condenser; The import of described heat pump generator is connected with a described supply channel by pipeline, the outlet of described heat pump generator is connected with the import of described absorption heat pump evaporimeter by pipeline, and the outlet of described absorption heat pump evaporimeter is connected with described electric drive heat pump by pipeline; The import of described absorption heat pump absorber is connected with described secondary hot water's heating network with described first strand of water return pipeline by pipeline, the outlet of described absorption heat pump absorber is connected with the import of described absorption heat pump condenser by pipeline, and the outlet of described absorption heat pump condenser is connected with described secondary hot water's heating network with described first strand of supply channel by pipeline.
Described electric drive heat pump comprises electric drive evaporator with heat pump and electric drive heat pump condenser; The import of described electric drive evaporator with heat pump is connected with described absorption heat pump by pipeline, and the outlet of described electric drive evaporator with heat pump is connected on described primary water pipeline by pipeline; The import of described electric drive heat pump condenser is connected with described secondary hot water's heating network with described second strand of water return pipeline by pipeline, and the outlet of described electric drive heat pump condenser is connected with described secondary hot water's heating network with described second strand of supply channel by pipeline.
In described secondary hot water's heating network side, water knockout drum and water collector are set, described water knockout drum is connected with second strand of water return pipeline with described first strand, and described water collector is connected with second strand of supply channel with described first strand; On described first strand and second strand of water return pipeline and described first strand and second strand of supply channel, control valve is set respectively.
On the pipeline between described connection absorption heat pump generator and absorption heat pump evaporimeter, plate type heat exchanger is set; One end of described plate type heat exchanger is connected between described absorption heat pump generator and absorption heat pump evaporimeter, the other end of described plate type heat exchanger is connected with the 3rd outlet of described secondary hot water's heating network with the 3rd strand of water return pipeline by pipeline, and is connected with the triple feed inlet of described secondary hot water's heating network with the 3rd strand of supply channel by pipeline.
At a secondary net water supply side, away from described heat source side, the above electric drive heat pump is set, described electric drive heat pump comprises electric drive evaporator with heat pump and electric drive heat pump condenser, described in each, electric drive evaporator with heat pump is cascaded, and described in each, electric drive heat pump condenser is connected on described secondary hot water's heating network; The flow direction supplying water according to a secondary net, the outlet of described absorption heat pump evaporimeter is connected with the import of electric drive evaporator with heat pump described in First, described in First, the outlet of electric drive evaporator with heat pump connects the import of second described electric drive evaporator with heat pump, and the to the last outlet of a described electric drive evaporator with heat pump is connected on described primary water pipeline by pipeline; Described in each, the import of electric drive heat pump condenser is all connected to respectively exporting above of described secondary hot water's heating network by pipeline and described water return pipeline, and described in each, the outlet of electric drive heat pump condenser is all connected in each import of described secondary hot water's heating network by pipeline and described supply channel.
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the utility model is owing to adopting a secondary net of self-heat power to supply water as driving heat source, source pump through absorption heat pump and electric drive heat pump formation supplies water and carries out, after heat release cooling, returning to thermal source heat with the form of a secondary net backwater a secondary net; Therefore the utility model is compared with conventional central heating mode, and the temperature difference between a secondary net water supply and a secondary net backwater is larger, thereby can reduce the transmission & distribution energy consumption of a secondary net.2, the utility model is owing on the pipeline connecting between absorption heat pump generator and absorption heat pump evaporimeter, a plate type heat exchanger being set; The secondary net flowing out from absorption heat pump generator supplied water before entering absorption heat pump evaporimeter, be introduced in plate type heat exchanger and carry out heat exchange with the 3rd strand of secondary network backwater, therefore the utility model not only can reduce the specified refrigerating capacity of absorption heat pump evaporimeter, also can reduce the specified refrigerating capacity of the evaporimeter of electric drive heat pump, thereby significantly reduce cost of investment.3, the utility model is owing to arranging more than one electric drive heat pump at a secondary net water supply side stow away from heat end, and each electric drive evaporator with heat pump is cascaded, and each electric drive heat pump condenser is connected on secondary hot water's heating network; Therefore a secondary net return water temperature of the present utility model can access significantly and reduce, thereby is conducive to the recovery of the low grade residual heat of city and outskirts, alleviates city heat supply thermal source problem in short supply.Based on above advantage, the utility model can be widely used in waste heat recovery.
Accompanying drawing explanation
Fig. 1 is that the utility model utilizes source pump to reduce a secondary net return water temperature and heats the heating system structure schematic diagram of secondary network hot water
Fig. 2 is that the utility model arranges the heating system structure schematic diagram of plate type heat exchanger between absorption heat pump generator and absorption heat pump evaporimeter
Fig. 3 is the heating system structure schematic diagram that the utility model adopts many electric drive heat pump series systems
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1, the utility model comprises hot water line 1, secondary hot water's heating network 2, absorption heat pump 3, electric drive heat pump 4 and thermal source 5 one time.Wherein, hot water line 1 comprises supply channel 11 and primary water pipeline 12, secondary hot water's heating network 2 comprises first strand and second strand of water return pipeline 21, first strand and second strand of supply channel 22, absorption heat pump 3 is arranged on near-thermal source 5 ends, and electric drive heat pump 4 is arranged on thermal source 5 ends far away.Thermal source 5 ports of export are connected with the first arrival end of absorption heat pump 3 with pipeline by a supply channel 11, first port of export of absorption heat pump 3 is connected with the first arrival end of electric drive heat pump 4 by pipeline, and first port of export of electric drive heat pump 4 is connected with thermal source 5 arrival ends with primary water pipeline 12 by pipeline.The second arrival end of absorption heat pump 3 is connected with the first outlet of secondary hot water's heating network 2 with first strand of water return pipeline 21 by pipeline successively, and second port of export of absorption heat pump 3 is connected with the first import of secondary hot water's heating network 2 with first strand of supply channel 22 by pipeline successively.The second arrival end of electric drive heat pump 4 is connected with the second outlet of secondary hot water's heating network 2 with second strand of water return pipeline 21 by pipeline successively, and second port of export of electric drive heat pump 4 is connected with the second import of secondary hot water's heating network 2 with second strand of supply channel 22 by pipeline successively.
Come a secondary net of self-heat power 5 to supply water as driving heat source, by supply channel 11 and pipeline, flow in absorption heat pump 3 and carry out heat release, one secondary net supplies water after heat release cooling, to flow in electric drive heat pump 4 and again carries out heat release, and a secondary net supplies water and with the form of a secondary net backwater, by primary water pipeline 12, return to thermal source 5 after the 4 heat release coolings of electric drive heat pump.First strand of secondary network water from secondary hot water's heating network 2 flows in absorption heat pump 3 by first strand of water return pipeline 21, absorb a secondary net water supply after liberated heat, returns in secondary hot water's heating network 2 by first strand of supply channel 22 in absorption heat pump 3.Second strand of secondary network water from secondary hot water's heating network 2 flows in electric drive heat pump 4 by second strand of water return pipeline 21, absorb a secondary net water supply after liberated heat, returns in secondary hot water's heating network 2 by second strand of supply channel 22 in electric drive heat pump 4.By said process, the heat delivery that a secondary net supplies water, to secondary network water, makes the temperature of a secondary net backwater significantly lower than the temperature of secondary network backwater, thereby be conducive to thermal source 5 places, reclaims more fully low temperature exhaust heat.
In above-described embodiment, absorption heat pump 3 comprises absorption heat pump generator 31, absorption heat pump evaporimeter 32, absorption heat pump absorber 33 and absorption heat pump condenser 34.The import of heat pump generator 31 is connected with a supply channel 11 by pipeline, and the outlet of heat pump generator 31 is connected with the import of absorption heat pump evaporimeter 32 by pipeline, and the outlet of absorption heat pump evaporimeter 32 is connected with electric drive heat pump 4 by pipeline; The import of absorption heat pump absorber 33 is connected with secondary hot water's heating network 2 with first strand of water return pipeline 21 by pipeline, the outlet of absorption heat pump absorber 33 is connected with the import of absorption heat pump condenser 34 by pipeline, and the outlet of absorption heat pump condenser 34 is connected with secondary hot water's heating network 2 with first strand of supply channel 22 by pipeline.
A secondary net that flows into absorption heat pump 3 supplies water first to enter in absorption heat pump generator 31 and lowers the temperature for the first time, through flowing into absorption heat pump evaporimeter 32 as low-temperature heat source by pipeline after cooling for the first time, in absorption heat pump evaporimeter 32, after lowering the temperature for the second time, as low-temperature heat source, by pipeline, flow into electric drive heat pump 4.First strand of secondary network backwater of secondary hot water's heating network 2 enters in absorption heat pump absorber 33 and absorption heat pump condenser 34 successively by first strand of water return pipeline 21 and pipeline, and after twice heat temperature raising, as first strand of secondary network, supply water and by pipeline and first strand of supply channel 22, export to secondary hot water's heating network 2 successively.
In above-described embodiment, electric drive heat pump 4 comprises electric drive evaporator with heat pump 41 and electric drive heat pump condenser 42.The import of electric drive evaporator with heat pump 41 is connected with absorption heat pump 3 by pipeline, and the outlet of electric drive evaporator with heat pump 41 is connected on primary water pipeline 12 by pipeline; The import of electric drive heat pump condenser 42 is connected with secondary hot water's heating network 2 with second strand of water return pipeline 21 by pipeline, and the outlet of electric drive heat pump condenser 42 is connected with secondary hot water's heating network 2 with second strand of supply channel 22 by pipeline.
A secondary net in absorption heat pump 3 after heat release supplies water and flows in electric drive evaporator with heat pump 41 by pipeline, in electric drive evaporator with heat pump 41, after cooling for the third time, is returned to thermal source 5 and is heated successively by pipeline and primary water pipeline 12.Second strand of secondary network backwater of secondary hot water's heating network 2 flows in electric drive heat pump condenser 42 by second strand of water return pipeline 21 and pipeline successively, and after heat temperature raising, as second strand of secondary network, supply water and by pipeline and second strand of supply channel 22, export to secondary hot water's heating network 2 successively.The heat that the heat that one secondary net water supply provides and electric drive heat pump 4 are converted by electric work is all for heating secondary network backwater, and the form that the secondary network backwater after heating supplies water with secondary network offers user.
In above-described embodiment, in secondary hot water's heating network 2 sides, water knockout drum and water collector are also set, water knockout drum is connected with second strand of water return pipeline 21 with first strand, and water collector is connected with second strand of supply channel 22 with first strand; And on first strand and second strand of water return pipeline 21 and first strand and second strand of supply channel 22, control valve is set respectively, make secondary network backwater in water knockout drum, be divided into two strands, according to suitable flowrate proportioning, secondary network backwater is flowed into respectively in absorption heat pump absorber 33 and electric drive heat pump condenser 42 and is heated by first strand and second strand of water return pipeline 21, and respectively by first strand and second strand of supply channel, 22 inflow water collectors, after collecting, be delivered to user in water collector.
In above-described embodiment, as shown in Figure 2, for reducing the installed capacity of absorption heat pump 3 and electric drive heat pump 4, on the pipeline connecting between absorption heat pump generator 31 and absorption heat pump evaporimeter 32, plate type heat exchanger 6 is set; One side of plate type heat exchanger 6 is connected between absorption heat pump generator 31 and absorption heat pump evaporimeter 32, the opposite side of plate type heat exchanger 6 is connected with the 3rd outlet of secondary hot water's heating network 2 with the 3rd strand of water return pipeline 21 by pipeline, and is connected with the triple feed inlet of secondary hot water's heating network 2 with the 3rd strand of supply channel 22 by pipeline.
One secondary net supplies water and after the cooling of heat release for the first time, as low-temperature heat source, flows in plate type heat exchanger 6 in absorption heat pump generator 31, in plate type heat exchanger 6, carry out heat exchange with the 3rd strand of secondary network backwater, one secondary net supplies water through flowing into absorption heat pump evaporimeter 32 after cooling for the second time, in absorption heat pump evaporimeter 32, through flowing in electric drive evaporator with heat pump 41 after cooling for the third time, in electric drive evaporator with heat pump 41, after the 4th cooling, after pipeline and primary water pipeline 12, return to successively thermal source 5 heating.The secondary net flowing out from absorption heat pump generator 31 supplied water before entering absorption heat pump evaporimeter 32, be introduced in plate type heat exchanger 6 and carry out heat exchange with the 3rd strand of secondary network backwater, not only can reduce so the specified refrigerating capacity of absorption heat pump evaporimeter 32, also can reduce the specified refrigerating capacity of the evaporimeter 41 of electric drive heat pump, thereby significantly reduce cost of investment.
In above-described embodiment, as shown in Figure 3, heating system structure based on shown in Fig. 2, at secondary net water supply side stow away from heat 5 ends, more than one electric drive heat pump 4 is set, wherein, each electric drive evaporator with heat pump 41 is cascaded, and each electric drive heat pump condenser 42 is connected on secondary hot water's heating network 2.The flow direction supplying water according to a secondary net, the outlet of absorption heat pump evaporimeter 32 is connected with the import of First electric drive evaporator with heat pump 41, the outlet of First electric drive evaporator with heat pump 41 connects the import of second electric drive evaporator with heat pump 41, and the to the last outlet of an electric drive evaporator with heat pump 41 is connected on primary water pipeline 12 by pipeline.It is upper that the import of each electric drive heat pump condenser 42 is all connected to respectively exporting of secondary hot water's heating network 2 by pipeline and water return pipeline 21, and the outlet of each electric drive heat pump condenser 42 is all connected in each import of secondary hot water's heating network 2 by pipeline and supply channel 22.
Come a secondary net of self-heat power 5 to supply water as driving heat source, by supply channel 11 and pipeline, after being lowered the temperature by heat release while flowing through successively absorption heat pump 3 and plate type heat exchanger 6, flow into successively again in each electric drive evaporator with heat pump 41, in each electric drive evaporator with heat pump 41, after cooling, heat in returning to thermal source 5 successively after pipeline and primary water pipeline 12.The multiply backwater of secondary hot water's heating network 2 flows in each electric drive heat pump condenser 42 by multiply water return pipeline 21 and pipeline successively, and after heat temperature raising, as secondary network, supply water and by pipeline and multiply supply channel 22, export to secondary hot water's heating network 2 successively.
In above-described embodiment, the flow direction supplying water according to a secondary net, the evaporating temperature design load of the electric drive evaporator with heat pump 41 that a secondary net water supply is introduced into is the highest; According to the condensation temperature of secondary network hot water temperature requirements set electric drive heat pump condenser 42.
The various embodiments described above are only for illustrating the utility model; wherein the structure of each parts, connected mode etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (7)
1. can reduce a heating system for a secondary net return water temperature, it is characterized in that: it comprises hot water line, secondary hot water's heating network, absorption heat pump, electric drive heat pump and thermal source one time; A described hot water line comprises supply channel and primary water pipeline, and described secondary hot water's heating network comprises first strand and second strand of water return pipeline, first strand and second strand of supply channel; Described absorption heat pump is arranged on near-thermal source, and described electric drive heat pump is arranged on described heat source side far away; The described thermal source port of export is connected with the first arrival end of described absorption heat pump with pipeline by a described supply channel, first port of export of described absorption heat pump is connected with the first arrival end of described electric drive heat pump by pipeline, and first port of export of described electric drive heat pump is connected with described thermal source arrival end with described primary water pipeline by pipeline; The second arrival end of described absorption heat pump is connected with the first outlet of described secondary hot water's heating network with described first strand of water return pipeline by pipeline successively, and second port of export of described absorption heat pump is connected with the first import of described secondary hot water's heating network with described first strand of supply channel by pipeline successively; The second arrival end of described electric drive heat pump is connected with the second outlet of described secondary hot water's heating network with described second strand of water return pipeline by pipeline successively, and second port of export of described electric drive heat pump is connected with the second import of described secondary hot water's heating network with described second strand of supply channel by pipeline successively.
2. a kind of heating system that can reduce a secondary net return water temperature as claimed in claim 1, is characterized in that: described absorption heat pump comprises absorption heat pump generator, absorption heat pump evaporimeter, absorption heat pump absorber and absorption heat pump condenser; The import of described heat pump generator is connected with a described supply channel by pipeline, the outlet of described heat pump generator is connected with the import of described absorption heat pump evaporimeter by pipeline, and the outlet of described absorption heat pump evaporimeter is connected with described electric drive heat pump by pipeline; The import of described absorption heat pump absorber is connected with described secondary hot water's heating network with described first strand of water return pipeline by pipeline, the outlet of described absorption heat pump absorber is connected with the import of described absorption heat pump condenser by pipeline, and the outlet of described absorption heat pump condenser is connected with described secondary hot water's heating network with described first strand of supply channel by pipeline.
3. a kind of heating system that can reduce a secondary net return water temperature as claimed in claim 1, is characterized in that: described electric drive heat pump comprises electric drive evaporator with heat pump and electric drive heat pump condenser; The import of described electric drive evaporator with heat pump is connected with described absorption heat pump by pipeline, and the outlet of described electric drive evaporator with heat pump is connected on described primary water pipeline by pipeline; The import of described electric drive heat pump condenser is connected with described secondary hot water's heating network with described second strand of water return pipeline by pipeline, and the outlet of described electric drive heat pump condenser is connected with described secondary hot water's heating network with described second strand of supply channel by pipeline.
4. a kind of heating system that can reduce a secondary net return water temperature as claimed in claim 2, is characterized in that: described electric drive heat pump comprises electric drive evaporator with heat pump and electric drive heat pump condenser; The import of described electric drive evaporator with heat pump is connected with described absorption heat pump by pipeline, and the outlet of described electric drive evaporator with heat pump is connected on described primary water pipeline by pipeline; The import of described electric drive heat pump condenser is connected with described secondary hot water's heating network with described second strand of water return pipeline by pipeline, and the outlet of described electric drive heat pump condenser is connected with described secondary hot water's heating network with described second strand of supply channel by pipeline.
5. a kind of heating system that can reduce a secondary net return water temperature as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: in described secondary hot water's heating network side, water knockout drum and water collector are set, described water knockout drum is connected with second strand of water return pipeline with described first strand, and described water collector is connected with second strand of supply channel with described first strand; On described first strand and second strand of water return pipeline and described first strand and second strand of supply channel, control valve is set respectively.
6. a kind of heating system that can reduce a secondary net return water temperature as claimed in claim 2, is characterized in that: on the pipeline between described connection absorption heat pump generator and absorption heat pump evaporimeter, plate type heat exchanger is set; One end of described plate type heat exchanger is connected between described absorption heat pump generator and absorption heat pump evaporimeter, the other end of described plate type heat exchanger is connected with the 3rd outlet of described secondary hot water's heating network with the 3rd strand of water return pipeline by pipeline, and is connected with the triple feed inlet of described secondary hot water's heating network with the 3rd strand of supply channel by pipeline.
7. a kind of heating system that can reduce a secondary net return water temperature as described in claim 2 or 4 or 6, it is characterized in that: at a secondary net water supply side, away from described heat source side, the above electric drive heat pump is set, described electric drive heat pump comprises electric drive evaporator with heat pump and electric drive heat pump condenser, described in each, electric drive evaporator with heat pump is cascaded, and described in each, electric drive heat pump condenser is connected on described secondary hot water's heating network; The flow direction supplying water according to a secondary net, the outlet of described absorption heat pump evaporimeter is connected with the import of electric drive evaporator with heat pump described in First, described in First, the outlet of electric drive evaporator with heat pump connects the import of second described electric drive evaporator with heat pump, and the to the last outlet of a described electric drive evaporator with heat pump is connected on described primary water pipeline by pipeline; Described in each, the import of electric drive heat pump condenser is all connected to respectively exporting above of described secondary hot water's heating network by pipeline and described water return pipeline, and described in each, the outlet of electric drive heat pump condenser is all connected in each import of described secondary hot water's heating network by pipeline and described supply channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420114234.4U CN203757824U (en) | 2014-03-13 | 2014-03-13 | Heat supply system capable of reducing return water temperature of primary network |
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| CN201420114234.4U CN203757824U (en) | 2014-03-13 | 2014-03-13 | Heat supply system capable of reducing return water temperature of primary network |
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| CN104728898A (en) * | 2015-03-12 | 2015-06-24 | 朱海龙 | Heat supply pipe network heat pump adjusting system |
| CN105953290A (en) * | 2016-05-13 | 2016-09-21 | 湖南同为节能科技有限公司 | First-network water large-temperature-difference heat supplying system and method |
| CN105953426A (en) * | 2016-05-13 | 2016-09-21 | 湖南同为节能科技有限公司 | Heat pump type large-temperature-difference heat supply method |
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| CN113375212A (en) * | 2021-05-17 | 2021-09-10 | 大唐吉林发电有限公司热力分公司 | High-efficient heat pump system that retrieves of central heating pipe network return water |
| CN114263957A (en) * | 2021-12-06 | 2022-04-01 | 河北工业大学 | Self-capacity-increasing heating system with energy coupling of primary/secondary heating power pipe network |
| CN115507566A (en) * | 2022-09-28 | 2022-12-23 | 清华大学 | Heat supply and ice making integrated machine and heat supply and ice making method |
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| CN104728898A (en) * | 2015-03-12 | 2015-06-24 | 朱海龙 | Heat supply pipe network heat pump adjusting system |
| CN105953290A (en) * | 2016-05-13 | 2016-09-21 | 湖南同为节能科技有限公司 | First-network water large-temperature-difference heat supplying system and method |
| CN105953426A (en) * | 2016-05-13 | 2016-09-21 | 湖南同为节能科技有限公司 | Heat pump type large-temperature-difference heat supply method |
| CN108072088B (en) * | 2016-11-15 | 2024-05-14 | 长春中安鸿程伟业节能科技有限公司 | Peak regulating system of electric heating pump of central heating secondary network |
| CN108072088A (en) * | 2016-11-15 | 2018-05-25 | 长春中安鸿程伟业节能科技有限公司 | A kind of central heating secondary network electric heating pump peak regulation system |
| CN106610044A (en) * | 2016-12-29 | 2017-05-03 | 大连葆光节能空调设备厂 | System for enlarging cogeneration centralized heat supply scale |
| CN107388329A (en) * | 2017-09-18 | 2017-11-24 | 江苏中圣管道工程技术有限公司 | A kind of pump type heat steam-water mixing heat-exchange system |
| CN111765509A (en) * | 2020-07-01 | 2020-10-13 | 河北工业大学 | Distributed wind-solar complementary bidirectional energy supply station |
| CN111765509B (en) * | 2020-07-01 | 2021-02-26 | 河北工业大学 | Distributed wind-solar complementary bidirectional energy supply station |
| CN113375212A (en) * | 2021-05-17 | 2021-09-10 | 大唐吉林发电有限公司热力分公司 | High-efficient heat pump system that retrieves of central heating pipe network return water |
| CN114263957A (en) * | 2021-12-06 | 2022-04-01 | 河北工业大学 | Self-capacity-increasing heating system with energy coupling of primary/secondary heating power pipe network |
| CN115507566A (en) * | 2022-09-28 | 2022-12-23 | 清华大学 | Heat supply and ice making integrated machine and heat supply and ice making method |
| CN115507566B (en) * | 2022-09-28 | 2024-02-23 | 清华大学 | Heat supply and ice making integrated machine and heat supply and ice making method |
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Address after: 100084 Beijing, Haidian District, 100084 box office box office, Tsinghua University, Patentee after: TSINGHUA University Patentee after: CHIFENG HERAN ENERGY SAVING TECHNOLOGY CO.,LTD. Address before: 100084 Beijing, Haidian District, 100084 box office box office, Tsinghua University, Patentee before: Tsinghua University Patentee before: CHIFENG HERAN ENERGY-SAVING TECHNICAL SERVICES LLC |
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