CN107559926A - A kind of family's heat supply network active heat-exchange system in central heating system - Google Patents
A kind of family's heat supply network active heat-exchange system in central heating system Download PDFInfo
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- CN107559926A CN107559926A CN201710828592.XA CN201710828592A CN107559926A CN 107559926 A CN107559926 A CN 107559926A CN 201710828592 A CN201710828592 A CN 201710828592A CN 107559926 A CN107559926 A CN 107559926A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 230000004087 circulation Effects 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 238000005057 refrigeration Methods 0.000 claims abstract description 8
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses the active heat-exchange system of family's heat supply network in a kind of central heating system, including three circulations, primary water circulates central heating network, the kind of refrigeration cycle of two level water circulation user heat supply network and jet type heat pump, central heating network hot water is carried out staged cooling and utilized by jet type heat pump, heat is transferred to by user end radiator by cooling cycle system and primary, two level water passage circulation system by injector.Present system contains the injector kind of refrigeration cycle for possessing heat exchanger.This jet type heat pump technology is simple, cheap and reliable, and mechanism should be readily appreciated that.It is particluarly suitable for the application of family's heat supply network, can realize the active heat transfer supplied water from low temperature primary backwater to two level high temperature.The technology of the present invention will substantially reduce the energy expenditure of water system transmission ＆ distribution.The energy consumption of the water pump brought due to increased 10 15 DEG C of temperature drops is saved and estimated about 50 60%.Due to the lower heat waste of central heating network, we can expect to obtain bigger energy-saving effect.
Description
Technical field
The present invention relates to a kind of active enhanced heat exchange system suitable for family's heat supply network, particularly a kind of central heating system
The active heat-exchange system of family's heat supply network in system.
Background technology
According to the data of Ministry of Energy, the 30-40% of total energy consumption is heat supply, ventilation and illumination for building.
In these energy resource consumptions, accounting example maximum is the heat demand built.Nowadays, 60% domestic heat derives from central heating
And cogeneration plant.Therefore, efficient central heating system is significant in terms of energy-conservation and greenhouse gas emission.
At present, in central heating system of today, annual confession, most of the fluctuation range of return water temperature are in 75-100 DEG C and 40-
50℃(Frederiksen and Werner,2013).According to Frederiksen and Werner (2013) investigation,
By reducing by 10 DEG C of return water temperature, there are about the annual cost of 7-10% central heating system can be conserved.And city
Heating heat demand steeply rise so that the requirement to heating area also increases substantially, in this case, can take
The mode for overlaying a pipe network more solves, and it is to be relatively easy to that this part heat load, which solves,.But in original heating area zero
The increased thermic load of star by two level thermal substation nearby because not on a large scale, can only be born, may result in original heating network
Heat supply deficiency.This is due to ensure heating quality, and the supply water temperature once netted must be constant.Increasing heating load can only
Realized by changing the circulating water flow once netted and the return water temperature once netted.The performance of secondary station heating power device determines one
The backwater temperature difference of secondary net, and to be also all oneself complete heat-net-pipeline through laying, especially once net main pipe, in set pipe network
It is difficult to be further added by once net quantity of circulating water under diameter.So to increase the hot supply once netted will only lay
Two methods of secondary station heat exchanger heat exchange property are laid and improved to pipe network again.The laying of heating network typically belongs to municipal item
Mesh, not only quantities is huge but also is not the permanent method solved the problems, such as.
The content of the invention
In order to solve the problems, such as deficiency of the prior art and its exist, the present invention is provided in a kind of central heating system
The active heat-exchange system of family's heat supply network, central heating system heat energy Quality degree of effective utilization is low in the prior art for solution, improves heat supply
The problem of performance cost is high.
Technical scheme is as follows：A kind of family's heat supply network active heat-exchange system in central heating system, including
The kind of refrigeration cycle of three circulations, primary water circulation central heating network, two level water circulation user heat supply network and jet type heat pump, spray
Penetrate formula heat pump and central heating network hot water is subjected to staged cooling utilization, heat is passed through by cooling cycle system by injector
With primary, two level water passage circulation system, user end radiator is transferred to.
By each device in pipe connection system, the primary water circulation central heating network includes：Heat supply network supplies water first
First connect generator, generator water route port of export connection water water heat exchanger, water water heat exchanger outlet connection evaporator water route
Import, the outlet of evaporator water route connect heat supply network backwater end；Two level water circulation user's heat supply network includes：Water in Condenser way outlet connects
Water water heat exchanger, water water heat exchanger are followed by user end radiator, the connection condenser water route import of radiator water way outlet；
The kind of refrigeration cycle of the jet type heat pump includes：Injector outlet connects condenser inlet, is divided into two-way after condenser, passes through all the way
Working medium circulating pump enters generator, generator exports end connection injector working fluid port, and another way flows through choke valve entrance
Evaporator, evaporator outlet end connection injector driving fluid port.
The primary water circulation central heating network and two level water circulation user's heat network system are equipped with flow control valve.
Beneficial effects of the present invention are：Present thermal substation technology is to be realized by passive type heat exchanger from primary city
Local user's heat supply network is arrived in city's heat supply network heat exchange.Then the return water temperature of thermal substation depends on the return water temperature of radiator, and radiates
The warm water temperature of device is then constrained to the air themperature of heated room space.Due to such limitation, each thermal substation
Return water temperature is difficult to be lowered to 30 DEG C of below.Present system contains the injector kind of refrigeration cycle for possessing heat exchanger.This
Individual jet type heat pump technology is simple, cheap and reliable, and mechanism should be readily appreciated that.It is particluarly suitable for family's heat supply network
Using, can realize supplied water from low temperature primary backwater to two level high temperature active heat transfer.Heat from water at low temperature to high-temperature water so
Heat transfer, be to be driven by the heat of central heating network by jet type heat pump, and this driving heat be later
Two level water circulation is delivered to for room heat supply.Technique is suitable for use with family's heat supply network of central heating system, especially
It is the family for employing flooring radiation space heating the most.Its immediate interest is that it increases the operating temperature of central heating network
Drop (Δ t), therefore reduce the water circulation mass flow of requirement.This technology disappears the energy for substantially reducing water system transmission ＆ distribution
Consumption.The energy consumption of the water pump brought due to increased 10-15 DEG C of temperature drop is saved and estimated in about 50-60%.Due to central heating
The lower heat waste of pipe network, we can expect to obtain bigger energy-saving effect.Further energy-conservation is included in flue gas condenser more
More recuperation of heat etc..Same technology can also be used for branch line thermal substation to reduce the return water temperature of large area heat supply network.Except
Energy-conservation, due to requirement lower in terms of insulation, the investment of central heating network can reduce.Due to increased heat capacity,
Under conditions of big temperature drop Δ t, existing central heating network can cover bigger heat supply region, and this is the another of the technology again
Where individual advantage.
Brief description of the drawings
Fig. 1 is the active heat-exchange system schematic diagram of family's heat supply network in the central heating system of the present invention；
Wherein：1-generator；2-water water heat exchanger；3-evaporator；4-- injectors；5-condenser；6-radiating
Device；7-working medium pump；8-choke valve；9-first flow regulating valve；10-second flow regulating valve；9-1-2-3 circulates for heat supply network
Loop；2-10-6-5 is user's circulation loop；Remaining is jet type heat pump working medium circulation loop.
Embodiment
The present invention is elaborated below in conjunction with the accompanying drawings.
Accompanying drawing 1 illustrates the principle of design.With the tradition heat for the space heating system for possessing the liquid circulation being indirectly connected with
Power station is compared, and the design of new therrmodynamic system also has a heat exchanger 2, while adds a jet type heat pump.Whole heating power
Standing includes the refrigeration of three circulations, primary water circulation central heating network, two level water circulation user heat supply network and jet type heat pump
Circulation.The generator 1 of hot water and jet type heat pump from primary heating network carries out heat exchange first, experienced generator
In heat exchange after, the temperature of primary hot water will decline 20-30 DEG C.Then primary hot water heats in heat exchanger 2 with being used for
The two level water circulation of user terminal radiator carries out further heat exchange, and the temperature drop of water further reduces 20-30 DEG C.It is last first
Level hot water carries out heat exchange in the evaporator 3 of jet type heat pump, further 15-20 DEG C of cooling.Passing through generator 1, heat exchange
After device 2, and the cooling of evaporator 3, the return water temperature that primary hot water returns to central heating network will be reduced to 15-20 DEG C, and this will
It is also lower 10-15 DEG C than the backwater minimum temperature at conventional heat station.The two level water circulation of user's heat supply network passes through jet type heat pump
Condenser 5 and heat exchanger 2 obtain heat.The heat obtained from condenser is to obtain hot summation from generator 1 and evaporator 3.
Therefore, it is all without heat waste to be transferred to domestic consumer from the primary heat release supplied water of central heating network.However, two level is hot
The Δ t of power station heating network adds 10-15 DEG C.
Although above in conjunction with accompanying drawing, invention has been described, and the invention is not limited in above-mentioned concrete function
And the course of work, above-mentioned embodiment is only schematical, is not restricted, the ordinary skill people of this area
Member in the case of present inventive concept and scope of the claimed protection is not departed from, can also make under the enlightenment of the present invention
Many forms, these are belonged within protection scope of the present invention.
Claims (3)
1. the active heat-exchange system of family's heat supply network in a kind of central heating system, it is characterised in that primary including three circulations
The kind of refrigeration cycle of water circulation central heating network, two level water circulation user heat supply network and jet type heat pump, jet type heat pump will collect
Middle heating network hot water carries out staged cooling and utilized, and heat is passed through into cooling cycle system and primary, two level by injector
Water passage circulation system, it is transferred to user end radiator.
2. the active heat-exchange system of family's heat supply network in central heating system according to claim 1, it is characterised in that pass through
Each device in pipe connection system, the primary water circulation central heating network include：Heat supply network supplies water and connects generator first,
Generator water route port of export connection water water heat exchanger, water water heat exchanger outlet connection evaporator water route import, evaporator water
Way outlet connects heat supply network backwater end；Two level water circulation user's heat supply network includes：Water in Condenser way outlet connects water water heat exchanger,
Water water heat exchanger is followed by user end radiator, the connection condenser water route import of radiator water way outlet；The injecting type heat
The kind of refrigeration cycle of pump includes：Injector outlet connects condenser inlet, is divided into two-way after condenser, enters all the way through working medium circulating pump
Enter generator, generator exports end connection injector working fluid port, another way flows through choke valve and enters evaporator, evaporator
Port of export connection injector driving fluid port.
3. the active heat-exchange system of family's heat supply network in central heating system according to claim 1, it is characterised in that described
Primary water circulates central heating network and two level water circulation user's heat network system is equipped with flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828592.XA CN107559926A (en) | 2017-09-14 | 2017-09-14 | A kind of family's heat supply network active heat-exchange system in central heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828592.XA CN107559926A (en) | 2017-09-14 | 2017-09-14 | A kind of family's heat supply network active heat-exchange system in central heating system |
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| CN107559926A true CN107559926A (en) | 2018-01-09 |
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| CN201710828592.XA Pending CN107559926A (en) | 2017-09-14 | 2017-09-14 | A kind of family's heat supply network active heat-exchange system in central heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115891579A (en) * | 2021-09-30 | 2023-04-04 | 比亚迪股份有限公司 | Thermal management system and vehicle with same |
Citations (7)
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|---|---|---|---|---|
| EP1862878A2 (en) * | 2006-05-30 | 2007-12-05 | Broen A/S | Control system and method for a fluid tube network such as a central heating system |
| CN201844453U (en) * | 2010-10-27 | 2011-05-25 | 孔祥懿 | Concentrated heating system |
| CN102226542A (en) * | 2011-06-03 | 2011-10-26 | 北京建筑工程学院 | Ejector type heat pump heat transfer set |
| CN102434907A (en) * | 2011-10-27 | 2012-05-02 | 大连理工大学 | Secondary heat exchange station heating system based on jet type heat pump for recovering primary grid backwater complementary energy |
| CN102538052A (en) * | 2012-02-21 | 2012-07-04 | 北京建筑工程学院 | Novel jet-type heat exchanger unit |
| CN103115388A (en) * | 2013-03-06 | 2013-05-22 | 中国神华能源股份有限公司 | Thermal power plant circulating water heat supply system |
| CN207365150U (en) * | 2017-09-14 | 2018-05-15 | 天津大学 | A kind of family's heat supply network active heat-exchange system in central heating system |
-
2017
- 2017-09-14 CN CN201710828592.XA patent/CN107559926A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1862878A2 (en) * | 2006-05-30 | 2007-12-05 | Broen A/S | Control system and method for a fluid tube network such as a central heating system |
| CN201844453U (en) * | 2010-10-27 | 2011-05-25 | 孔祥懿 | Concentrated heating system |
| CN102226542A (en) * | 2011-06-03 | 2011-10-26 | 北京建筑工程学院 | Ejector type heat pump heat transfer set |
| CN102434907A (en) * | 2011-10-27 | 2012-05-02 | 大连理工大学 | Secondary heat exchange station heating system based on jet type heat pump for recovering primary grid backwater complementary energy |
| CN102538052A (en) * | 2012-02-21 | 2012-07-04 | 北京建筑工程学院 | Novel jet-type heat exchanger unit |
| CN103115388A (en) * | 2013-03-06 | 2013-05-22 | 中国神华能源股份有限公司 | Thermal power plant circulating water heat supply system |
| CN207365150U (en) * | 2017-09-14 | 2018-05-15 | 天津大学 | A kind of family's heat supply network active heat-exchange system in central heating system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115891579A (en) * | 2021-09-30 | 2023-04-04 | 比亚迪股份有限公司 | Thermal management system and vehicle with same |
| CN115891579B (en) * | 2021-09-30 | 2024-09-10 | 比亚迪股份有限公司 | Thermal management system and vehicle with same |
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Application publication date: 20180109 |