CN103868124B - The fuel supplementing type suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously - Google Patents
The fuel supplementing type suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously Download PDFInfo
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- CN103868124B CN103868124B CN201410071222.2A CN201410071222A CN103868124B CN 103868124 B CN103868124 B CN 103868124B CN 201410071222 A CN201410071222 A CN 201410071222A CN 103868124 B CN103868124 B CN 103868124B
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- hot water
- lithium bromide
- tube system
- heat
- water tube
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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
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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]
- Y02B30/62—Absorption based systems
Abstract
The present invention relates to the fuel supplementing type suction-type lithium bromide heat-exchange system of a kind of two path water heat supply simultaneously, belong to air conditioner technical field.Comprise a secondary net hot water tube system (1), first via secondary network hot water tube system (2), second road secondary network hot water tube system (3), First Heat Exchanger (4), second heat exchanger (5), hot water lithium bromide absorbing unit (6) and direct-burning type lithium bromide absorption type unit (7), the secondary net hot water going out a secondary net hot water tube system (1) is introduced into the generator (604) of hot water lithium bromide absorbing unit (6), enter First Heat Exchanger (4) again, enter the second heat exchanger (5) again, the last evaporimeter (701) flowing through direct-burning type lithium bromide absorption type unit (7) again, go out the hot water backwater of first via secondary network hot water tube system (2) through First Heat Exchanger (4), then flow out through first via secondary network hot water tube system (2).The present invention can realize, when reduction by secondary net hot water backwater's temperature, can also bearing central heating system spike heating demand.
Description
Technical field
The present invention relates to the fuel supplementing type suction-type lithium bromide heat-exchange system of a kind of two path water heat supply simultaneously.Belong to air conditioner technical field.
Background technology
In conventional central heating system, a secondary net hot water is after thermal source place is by heat temperature raising, is sent to each heat user by heating network, after each heat user place and secondary network hot water are lowered the temperature by heat exchanger heat exchange, then returns thermal source place heat temperature raising by heating network.
The ordinary heat exchanger that each heat user place uses as shown in Figure 1 (being water-water heat exchanger in diagram), one secondary net hot water and secondary network hot water carry out heat exchange by heat exchanger tube (shell-and-tube heat exchanger) or heat-transfer surface (plate type heat exchanger), heat in one secondary net hot water is delivered in secondary network hot water, one secondary net hot water temperature declines, secondary network hot water temperature raises, complete the process of secondary network hot water heat-obtaining from a secondary net hot water, secondary network hot water be transported to again with thermal field institute for produce or live, heating.By configuring multiple heat exchanger, the different hot water demands (different pressures or different temperatures) at same heat user place can be met.
For reducing heating network construction cost and heat delivery cost, needing the supply water temperature of increase one secondary net hot water as far as possible or reducing its return water temperature, to increase supply backwater temperature difference, thus reducing required flow when carrying identical heat.But because the heatproof of heating network limits, the supply water temperature of a secondary net hot water can not be too high.And the ordinary heat exchanger adopted, a secondary net hot water and secondary network hot water need certain heat transfer temperature difference could realize effective heat exchange, so the return water temperature of a secondary net hot water in theory need higher than the inlet temperature of secondary network hot water.After the temperature of secondary network hot water is determined, the return water temperature of a secondary net hot water is restricted, and the utilized temperature difference of a secondary net hot water is subject to the restriction of secondary network hot water temperature.If can new flow process and system be adopted, when ensureing secondary network hot water temperature, reduce the return water temperature of a secondary net hot water, break through its restriction bottleneck higher than secondary network hot water inlet temperature, then can realize the object of aforementioned minimizing heating network construction cost and heat delivery cost.
In addition, heat demand during cold snap most because of central heating system demand fulfillment, thus heating network is all the design and establishing carried out according to maximum heating demand, but in actual moving process, the heating system overwhelming majority time is all run under part heating demand, and this just causes the waste of heating network heat capacity.If can new flow process and system be adopted, the peakload of heat supply peak period is fallen by the device assumes of heat user, central heating network is made only to bear basic load to a certain degree, then in same set under heat capacity, the construction cost of heating network can reduce, the oepration at full load time lengthening of heating network, the investment utilization ratio of heating network can get a promotion.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of return water temperature reducing a secondary net hot water in original technical foundation is provided, to realize the effective heat release temperature difference of increase by secondary net hot water, and central heating system spike heating demand can be born, and the suction-type lithium bromide heat-exchange system of two-way hot water can be provided simultaneously, two-way hot water is separate, and temperature and pressure can be different.
The object of the present invention is achieved like this: the fuel supplementing type suction-type lithium bromide heat-exchange system of a kind of two path water heat supply simultaneously, comprise a secondary net hot water tube system, first via secondary network hot water tube system and First Heat Exchanger, described system has additional the second road secondary network hot water tube system, second heat exchanger, hot water lithium bromide absorbing unit and direct-burning type lithium bromide absorption type unit, hot water lithium bromide absorbing unit comprises evaporimeter, absorber, condenser and generator, direct-burning type lithium bromide absorption type unit comprises evaporimeter, absorber, condenser and generator, the secondary net hot water going out a described secondary net hot water tube system is introduced into the generator of hot water lithium bromide absorbing unit, First Heat Exchanger is entered again out, and then enter the second heat exchanger, after finally flowing through the evaporimeter of direct-burning type lithium bromide absorption type unit again, flow out through a secondary net hot water tube system, go out the hot water backwater of described first via secondary network hot water tube system through First Heat Exchanger, then flow out through first via secondary network hot water tube system, the hot water backwater's parallel connection going out described second road secondary network hot water tube system is divided into two strands, wherein one first flows through the evaporimeter of hot water lithium bromide absorbing unit, enter the second heat exchanger again, another burst of series connection flows through absorber and the condenser of hot water lithium bromide absorbing unit, series connection enters absorber and the condenser of direct-burning type lithium bromide absorption type unit again, is flowed out after the hot water backwater that two strand of second road secondary network hot water tube system is come converges by secondary network hot water tube system.
The present invention is by arranging hot water lithium bromide absorbing unit, direct-burning type lithium bromide absorption type unit and two heat exchangers, an one road secondary network hot water backwater's part is first flowed through the evaporimeter of hot water lithium bromide absorbing unit, enter again after cooling in the second heat exchanger with a secondary net hot water heat exchange, the temperature that a secondary net hot water can be made to go out heat exchanger is fallen lower than secondary network return water temperature, then allow this secondary net hot water enter the evaporimeter of direct-burning type lithium bromide absorption type unit again, it is lower that return water temperature can fall.Additionally by arranging another heat exchanger, another road secondary network hot water backwater also can be heated up with a secondary net hot water heat exchange.Direct-burning type lithium bromide absorption type unit of the present invention does not need when part heating demand to run, and only heats secondary network hot water backwater by a secondary net hot water liberated heat; When the heat of a secondary net hot water can not meet heat demand, restart direct-burning type lithium bromide absorption type unit, the return water temperature of a secondary net hot water can be reduced on the one hand further, extract more heat in secondary network hot water backwater, on the other hand, the heat that fuel combustion produces can supply the breach between a secondary net hot water thermal amount and heating demand, bears spike heating demand.Compared with conventional art, the present invention can be implemented in reduction by secondary net hot water backwater temperature, when increasing by the effective heat release temperature difference of secondary net hot water, central heating system spike heating demand can also be born, and the suction-type lithium bromide heat-exchange system of two-way hot water can be provided simultaneously, two-way hot water is separate, and temperature and pressure can be different.
The invention has the beneficial effects as follows:
1, when a secondary net hot water flow is fixed, adopt unit of the present invention can reduce its return water temperature, improve and effectively utilize the temperature difference, the extraction of heat can be increased and utilize quantity, improve the heat capacity of system.
2, during identical heating demand, afterburning fuel can bear spike heating demand, and heating network only needs the basic load born to a certain degree, thus reduces the flow of a secondary net hot water, reduces the construction cost at its conveying cost and heating network, thermal source place.
3, the two-way hot water that temperature is different, pressure is different can be provided simultaneously, two kinds of different heat demand of the same area can be met simultaneously.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of ordinary heat exchanger multichannel heat supply in the past.
Fig. 2 is the fundamental diagram of the fuel supplementing type suction-type lithium bromide heat-exchange system of two path water of the present invention heat supply simultaneously.
Reference numeral in figure:
One secondary net hot water tube system 1, first via secondary network hot water tube system 2, second road secondary network hot water tube system 3, First Heat Exchanger 4, second heat exchanger 5, hot water lithium bromide absorbing unit 6, direct-burning type lithium bromide absorption type unit 7, the evaporimeter 601 of hot water lithium bromide absorbing unit 6, absorber 602, condenser 603, generator 604, the evaporimeter 701 of direct-burning type lithium bromide absorption type unit 7, absorber 702, condenser 703, generator 704;
One secondary net hot water enters A1, a secondary net hot water goes out A2, first via secondary network hot water enters B1, first via secondary network hot water backwater goes out B2, the second road secondary network hot water backwater enters C1, the second road secondary network hot water backwater goes out C2, fuel enters D1, discharge fume D2.
Detailed description of the invention
Fig. 2 is a kind of application example figure of the fuel supplementing type suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously involved in the present invention.This system is made up of a secondary net hot water tube system 1, first via secondary network hot water tube system 2, second road secondary network hot water tube system 3, First Heat Exchanger 4, second heat exchanger 5, hot water lithium bromide absorbing unit 6 and direct-burning type lithium bromide absorption type unit 7.Hot water lithium bromide absorbing unit 6 comprises evaporimeter 601, absorber 602, condenser 603 and generator 604.Direct-burning type lithium bromide absorption type unit 7 comprises evaporimeter 701, absorber 702, condenser 703 and generator 704.After the generator 604 that the secondary net hot water that one secondary net hot water tube system 1 is come is introduced into hot water lithium bromide absorbing unit 6 is once lowered the temperature as driving heat source, flow through First Heat Exchanger 4 successively and the second heat exchanger 5 is lowered the temperature again, after finally flowing through the evaporimeter 701 of direct-burning type lithium bromide absorption type unit 7 again, flow out through a secondary net hot water tube system 1, the hot water backwater that first via secondary network hot water tube system 2 is come after First Heat Exchanger 4 and a secondary net hot water heat exchange heat up, then is flowed out through first via secondary network hot water tube system 2, hot water backwater's parallel connection that second road secondary network hot water tube system 3 is come is divided into two strands, one first flows through the evaporimeter 601 of hot water lithium bromide absorbing unit 6, the second heat exchanger 5 is entered again and a secondary net hot water heat exchange heats up after cooling, another burst of series connection flows through the absorber 602 of hot water lithium bromide absorbing unit 6, after condenser 603 heats up, series connection enters the absorber 702 of direct-burning type lithium bromide absorption type unit 7 again, condenser 703 heats up, flowed out by secondary network hot water tube system 3 after the hot water backwater that two strand of second road secondary network hot water tube system 3 is come converges.
Hot water lithium bromide absorbing unit in the fuel supplementing type suction-type lithium bromide heat-exchange system of the heat supply simultaneously of the two path water shown in Fig. 2 and direct-burning type lithium bromide absorption type unit can be single-action, economic benefits and social benefits or diarcs unit.One secondary net hot water tube system and first via secondary network hot water tube system 2, second road secondary network hot water tube system 3 can be closed circulation systems, also can be open systems.
The hot water backwater that the second road secondary network hot water tube system 3 in the fuel supplementing type suction-type lithium bromide heat-exchange system of the heat supply simultaneously of the two path water shown in Fig. 2 is come is that parallel connection is divided into two strands, one series connection flows through evaporimeter 601 and second heat exchanger 5 of hot water lithium bromide absorbing unit 6, and another burst of series connection flows through absorber 702, the condenser 703 of the absorber 602 of hot water lithium bromide absorbing unit 6, condenser 603 and direct-burning type lithium bromide absorption type unit 7.It also can be that parallel connection is divided into two strands, one series connection flows through evaporimeter 601 and second heat exchanger 5 of hot water lithium bromide absorbing unit 6, and another burst of parallel connection or random order series connection, connection in series-parallel flow through absorber 702, the condenser 703 of the absorber 602 of hot water lithium bromide absorbing unit 6, condenser 603 and direct-burning type lithium bromide absorption type unit 7, it can also be that parallel connection is divided into two strands, one series connection flows through evaporimeter 601 and second heat exchanger 5 of hot water lithium bromide absorbing unit 6, another burst of parallel connection or random order series connection, connection in series-parallel flows through the absorber 602 of hot water lithium bromide absorbing unit 6, the absorber 702 of condenser 603 and direct-burning type lithium bromide absorption type unit 7, after any one or more in condenser 703, two strands of water converge, in parallel or random order series connection again, connection in series-parallel flows through the absorber 602 of hot water lithium bromide absorbing unit 6, the absorber 702 of condenser 603 and direct-burning type lithium bromide absorption type unit 7, remainder in condenser 703, or parallel connection is divided into two strands, one connect flow through hot water lithium bromide absorbing unit 6 evaporimeter 601 and the second heat exchanger 5 after, in parallel or random order series connection again, connection in series-parallel flows through the absorber 602 of hot water lithium bromide absorbing unit 6, the absorber 702 of condenser 603 and direct-burning type lithium bromide absorption type unit 7, any one or more in condenser 703, another stock is in parallel or random order series connection also, connection in series-parallel flows through the absorber 602 of hot water lithium bromide absorbing unit 6, the absorber 702 of condenser 603 and direct-burning type lithium bromide absorption type unit 7, remainder in condenser 703, or parallel connection is divided into two strands, one connect flow through hot water lithium bromide absorbing unit 6 evaporimeter 601 and the second heat exchanger 5 after, in parallel or random order series connection again, connection in series-parallel flows through the absorber 602 of hot water lithium bromide absorbing unit 6, the absorber 702 of condenser 603 and direct-burning type lithium bromide absorption type unit 7, any one or more in condenser 703, another stock is in parallel or random order series connection also, connection in series-parallel flows through the absorber 602 of hot water lithium bromide absorbing unit 6, the absorber 702 of condenser 603 and direct-burning type lithium bromide absorption type unit 7, after all the other in condenser 703 are any one or more, two strands of water converge, in parallel or random order series connection again, connection in series-parallel flows through the absorber 602 of hot water lithium bromide absorbing unit 6, the absorber 702 of condenser 603 and direct-burning type lithium bromide absorption type unit 7, remainder in condenser 703.
Claims (3)
1. the fuel supplementing type suction-type lithium bromide heat-exchange system of a two path water heat supply simultaneously, comprise a secondary net hot water tube system (1), first via secondary network hot water tube system (2) and First Heat Exchanger (4), it is characterized in that: described system has additional the second road secondary network hot water tube system (3), second heat exchanger (5), hot water lithium bromide absorbing unit (6) and direct-burning type lithium bromide absorption type unit (7), hot water lithium bromide absorbing unit (6) comprises evaporimeter (601), absorber (602), condenser (603) and generator (604), direct-burning type lithium bromide absorption type unit (7) comprises evaporimeter (701), absorber (702), condenser (703) and generator (704), the secondary net hot water going out a described secondary net hot water tube system (1) is introduced into the generator (604) of hot water lithium bromide absorbing unit (6), First Heat Exchanger (4) is entered again out, and then enter the second heat exchanger (5), after finally flowing through the evaporimeter (701) of direct-burning type lithium bromide absorption type unit (7) again, flow out through a secondary net hot water tube system (1), go out the hot water backwater of described first via secondary network hot water tube system (2) through First Heat Exchanger (4), then flow out through first via secondary network hot water tube system (2), the hot water backwater's parallel connection going out described second road secondary network hot water tube system (3) is divided into two strands, wherein one first flows through the evaporimeter (601) of hot water lithium bromide absorbing unit (6), enter the second heat exchanger (5) again, another burst of series connection flows through absorber (602) and the condenser (603) of hot water lithium bromide absorbing unit (6), series connection enters absorber (702) and the condenser (703) of direct-burning type lithium bromide absorption type unit (7) again, flowed out by secondary network hot water tube system (3) after the hot water backwater that two strand of second road secondary network hot water tube system (3) is come converges.
2. the fuel supplementing type suction-type lithium bromide heat-exchange system of a kind of two path water according to claim 1 heat supply simultaneously, is characterized in that: the hot water lithium bromide absorbing unit (6) in described system and direct-burning type lithium bromide absorption type unit (7) are single-action, economic benefits and social benefits or diarcs unit.
3. the fuel supplementing type suction-type lithium bromide heat-exchange system of a kind of two path water according to claim 1 heat supply simultaneously, it is characterized in that: in described system, a secondary net hot water tube system (1), first via secondary network hot water tube system (2) and the second road secondary network hot water tube system (3) are closed circulation systems, or open system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410071222.2A CN103868124B (en) | 2014-03-01 | 2014-03-01 | The fuel supplementing type suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
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| CN201410071222.2A CN103868124B (en) | 2014-03-01 | 2014-03-01 | The fuel supplementing type suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
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| CN103868124A CN103868124A (en) | 2014-06-18 |
| CN103868124B true CN103868124B (en) | 2016-04-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764068B (en) * | 2015-04-24 | 2018-09-14 | 珠海格力电器股份有限公司 | Heat-supply system based upon geothermal energy |
| CN107606814B (en) * | 2017-10-18 | 2024-01-05 | 双良节能系统股份有限公司 | Ultra-low-height large-temperature-difference lithium bromide absorption heat exchanger unit |
| CN113340016A (en) * | 2021-06-23 | 2021-09-03 | 双良节能系统股份有限公司 | After-burning type lithium bromide absorption heat exchange system with three paths of water supplying heat simultaneously |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0609395A1 (en) * | 1991-10-30 | 1994-08-10 | Lennox Industries Inc. | Ancillary heat pump apparatus for producing domestic hot water |
| KR100556267B1 (en) * | 2004-11-09 | 2006-03-03 | (주)뉴그린테크 | Hybrid heat-pump system using geotherm and air-heat |
| CN201163126Y (en) * | 2008-02-28 | 2008-12-10 | 清华大学 | Heat pump type heat-exchanging device |
| CN204141673U (en) * | 2014-03-01 | 2015-02-04 | 双良节能系统股份有限公司 | The fuel supplementing type suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
-
2014
- 2014-03-01 CN CN201410071222.2A patent/CN103868124B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0609395A1 (en) * | 1991-10-30 | 1994-08-10 | Lennox Industries Inc. | Ancillary heat pump apparatus for producing domestic hot water |
| KR100556267B1 (en) * | 2004-11-09 | 2006-03-03 | (주)뉴그린테크 | Hybrid heat-pump system using geotherm and air-heat |
| CN201163126Y (en) * | 2008-02-28 | 2008-12-10 | 清华大学 | Heat pump type heat-exchanging device |
| CN204141673U (en) * | 2014-03-01 | 2015-02-04 | 双良节能系统股份有限公司 | The fuel supplementing type suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
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