CN103868128A - Lithium bromide absorption type heat exchange system with two routes of water simultaneously supplying heat - Google Patents
Lithium bromide absorption type heat exchange system with two routes of water simultaneously supplying heat Download PDFInfo
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- CN103868128A CN103868128A CN201410071228.XA CN201410071228A CN103868128A CN 103868128 A CN103868128 A CN 103868128A CN 201410071228 A CN201410071228 A CN 201410071228A CN 103868128 A CN103868128 A CN 103868128A
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- hot water
- lithium bromide
- heat
- absorbing unit
- heat exchanger
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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
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Abstract
The invention relates to a lithium bromide absorption type heat exchange system with two routes of water simultaneously supplying heat, which belongs to the technical field of air-conditioning equipment. The lithium bromide absorption type heat exchange system comprises a primary network hot water pipeline system (1), a first-route secondary network hot water pipeline system (2), a second-route secondary network hot water pipeline system (3), a first heat exchanger (4), a second heat exchanger (5) and a hot water type lithium bromide absorption type unit (6); the primary network hot water flowing out of the primary network hot water pipeline system (1) sequentially enters a generator (604), the first heat exchanger (4) and the second heat exchanger (5); the hot return water flowing out of the first-route secondary network hot water pipeline system (2) flows through the first heat exchanger (4); the hot return water flowing out of the second-route secondary network hot water pipeline system (3) flows through an evaporator (601) of the hot water type lithium bromide absorption type unit (6), an absorber (602), a condenser (603) and the second heat exchanger (5). The lithium bromide absorption type heat exchange system can increase the effective exothermic temperature difference of primary network hot water and also can supply two routes of hot water with different temperatures and pressures to supply heat at the same time.
Description
Technical field
The present invention relates to a kind of suction-type lithium bromide heat-exchange system.Belong to air conditioner technical field.
Background technology
In conventional central heating system, a secondary net hot water is heated after intensification at thermal source place, is sent to each hot user by heating network, after each hot user place lowers the temperature by heat exchanger heat exchange with secondary network hot water, then returns to thermal source place heat temperature raising by heating network.
Each hot user locates common heat exchanger (being water-water heat exchanger in diagram) as shown in Figure 1 using, 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 for production or life, heating.By configuring multiple heat exchangers, can meet the different hot water demands (different pressures or different temperatures) at same hot user place.
For reducing heating network construction cost and heat delivery cost, need to increase the supply water temperature of a secondary net hot water as far as possible or reduce its return water temperature, to increase supply backwater temperature difference, thereby in the situation that carrying identical heat, reduce required flow.But due to the heatproof restriction of heating network, the supply water temperature of a secondary net hot water can not be too high.And the common heat exchanger adopting, 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 be 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 temperature difference utilized of a secondary net hot water is subject to secondary network hot water temperature's restriction.If can adopt new flow process and system, in the situation that guaranteeing 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, can realize the object of aforementioned minimizing heating network construction cost and heat delivery cost.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of return water temperature that reduces a secondary net hot water in original technical foundation is provided, increase the effective heat release temperature difference of a secondary net hot water to realize, and can provide the suction-type lithium bromide heat-exchange system of two-way hot water 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 suction-type lithium bromide heat-exchange system of a kind of two path water heat supply simultaneously, comprise secondary net hot water tube system first via secondary network hot water tube system and a First Heat Exchanger, described system has additional the second road secondary network hot water tube system, the second heat exchanger and hot water lithium bromide absorbing unit, hot water lithium bromide absorbing unit comprises evaporimeter, absorber, condenser and generator, a secondary net hot water that goes out a described secondary net hot water tube system is introduced into the generator of hot water lithium bromide absorbing unit, out, enter again First Heat Exchanger, and then enter the second heat exchanger, finally flow out through a secondary net hot water tube system again, 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 who goes out described the second road secondary network hot water tube system the flow through evaporimeter of hot water lithium bromide absorbing unit, absorber, condenser and the second heat exchanger.
The suction-type lithium bromide heat-exchange system of a kind of two path water of the present invention heat supply simultaneously, the hot water backwater's parallel connection that goes out described the second road secondary network hot water tube system is divided into two strands, the evaporimeter of one hot water lithium bromide absorbing unit of first flowing through, after cooling, entering the second heat exchanger and a secondary net hot water heat exchange heats up again, another plume is after the absorber of hot water lithium bromide absorbing unit heats up, series connection enters the condenser intensification of hot water lithium bromide absorbing unit again, after converging, the hot water backwater that two strand of second road secondary network hot water tube system come flows out by secondary network hot water tube system.
The suction-type lithium bromide heat-exchange system of a kind of two path water of the present invention heat supply simultaneously, going out the hot water backwater that described the second road secondary network hot water tube system comes is that parallel connection is divided into two strands, one series connection flow through evaporimeter and second heat exchanger of hot water lithium bromide absorbing unit, another burst of parallel connection or other random order series connection flow through absorber and the condenser of hot water lithium bromide absorbing unit.
The suction-type lithium bromide heat-exchange system of a kind of two path water of the present invention heat supply simultaneously, going out the hot water backwater that described the second road secondary network hot water tube system comes is that parallel connection is divided into two strands, one series connection flow through evaporimeter and second heat exchanger of hot water lithium bromide absorbing unit, another plume is through the absorber of hot water lithium bromide absorbing unit, then two strands of water condenser of flowing through again.
The suction-type lithium bromide heat-exchange system of a kind of two path water of the present invention heat supply simultaneously, going out the hot water backwater that described the second road secondary network hot water tube system comes is that parallel connection is divided into two strands, one series connection flow through evaporimeter and second heat exchanger of hot water lithium bromide absorbing unit, another plume is through the condenser of hot water lithium bromide absorbing unit, then two strands of water absorber of flowing through again.
The suction-type lithium bromide heat-exchange system of a kind of two path water of the present invention heat supply simultaneously, going out the hot water backwater that described the second road secondary network hot water tube system comes is that parallel connection is divided into two strands, one series connection is flowed through after the evaporimeter and the second heat exchanger of hot water lithium bromide absorbing unit, any one of flowing through again in absorber and the condenser of hot water lithium bromide absorbing unit, another strand remaining that in the absorber of hot water lithium bromide absorbing unit and condenser of flowing through.
The present invention is by arranging hot water lithium bromide absorbing unit and two heat exchangers, first the flow through evaporimeter of hot water lithium bromide absorbing unit of a part for Jiang Yi road secondary network hot water, after cooling, enter in heat exchanger and a secondary net hot water heat exchange, the temperature that can make once net hot water go out heat exchanger is fallen lowlyer than secondary network return water temperature again.In addition, by another heat exchanger is set, another road secondary network hot water also can be heated up with a secondary net hot water heat exchange.Compared with conventional art, the present invention can realize in the situation that reducing a secondary net hot water backwater temperature, increasing the effective heat release temperature difference of a secondary net hot water, and the secondary network hot water of two-way different temperatures, different pressures is provided simultaneously.
The invention has the beneficial effects as follows:
1, when a secondary net hot water flow is fixing, adopt this patent unit can reduce its return water temperature, improve and effectively utilize the temperature difference, can increase the extraction of heat and utilize quantity, improve the heat capacity of system.
2, temperature difference, the different two-way hot water of pressure 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 common heat exchanger multichannel heat supply in the past.
Fig. 2 is the fundamental diagram of the 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, the second road secondary network hot water tube system 3, First Heat Exchanger 4, the second heat exchanger 5, hot water lithium bromide absorbing unit 6, evaporimeter 601, absorber 602, condenser 603, generator 604;
One secondary net hot water enters A1, a secondary net hot water and goes out A2, first via secondary network hot water backwater and enter B1, first via secondary network hot water backwater and go out that B2, the second road secondary network hot water backwater enter C1, the second road secondary network hot water backwater goes out C2.
The specific embodiment
Fig. 2 is a kind of application example figure of the suction-type lithium bromide heat-exchange system of two path water involved in the present invention heat supply simultaneously.This system is made up of a secondary net hot water tube system 1, first via secondary network hot water tube system 2, the second road secondary network hot water tube system 3, First Heat Exchanger 4, the second heat exchanger 5 and hot water lithium bromide absorbing unit 6.Hot water lithium bromide absorbing unit 6 comprises evaporimeter 601, absorber 602, condenser 603 and generator 604.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, enter again First Heat Exchanger 4 reducing temperature twices, finally enter again the second heat exchanger 5 and again lowered the temperature, then 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 the second road secondary network hot water tube system 3 is come is divided into two strands, the evaporimeter 601 of one hot water lithium bromide absorbing unit 6 of first flowing through, after cooling, entering the second heat exchanger 5 and a secondary net hot water heat exchange heats up again, another plume is after the absorber 602 of hot water lithium bromide absorbing unit 6 heats up, the condenser 603 that series connection enters hot water lithium bromide absorbing unit 6 again heats up, and after the hot water backwater that two strand of second road secondary network hot water tube system 3 come converges, flows out by secondary network hot water tube system 3.
Hot water lithium bromide absorbing unit in the suction-type lithium bromide heat-exchange system of the heat supply simultaneously of the two path water shown in Fig. 2 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, the second road secondary network hot water tube system 3 can be closed circulation systems, can be also open systems.
The hot water backwater that the second road secondary network hot water tube system 3 in the 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 flow through evaporimeter 601 and second heat exchanger 5 of hot water lithium bromide absorbing unit 6, another burst of series connection flow through absorber 602 and the condenser 603 of hot water lithium bromide absorbing unit 6; It can be also that parallel connection is divided into two strands, one series connection flow through evaporimeter 601 and second heat exchanger 5 of hot water lithium bromide absorbing unit 6, another burst of parallel connection or other random order series connection flow through absorber 602 and the condenser 603 of hot water lithium bromide absorbing unit 6; It can also be that parallel connection is divided into two strands, one series connection flow through evaporimeter 601 and second heat exchanger 5 of hot water lithium bromide absorbing unit 6, and another plume is through the absorber 602 of hot water lithium bromide absorbing unit 6, then two strands of water condenser 603 of flowing through again; Or parallel connection is divided into two strands, one series connection flow through evaporimeter 601 and second heat exchanger 5 of hot water lithium bromide absorbing unit 6, another plume is through the condenser 603 of hot water lithium bromide absorbing unit 6, then two strands of water absorber 602 of flowing through again; Or parallel connection is divided into two strands, one series connection is flowed through after the evaporimeter 601 and the second heat exchanger 5 of hot water lithium bromide absorbing unit 6, any one of flowing through again in absorber 602 and the condenser 603 of hot water lithium bromide absorbing unit 6, another strand remaining that in the absorber of hot water lithium bromide absorbing unit 6 and condenser 603 of flowing through.
Claims (8)
1. the 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), the second heat exchanger (5) and hot water lithium bromide absorbing unit (6), hot water lithium bromide absorbing unit (6) comprises evaporimeter (601), absorber (602), condenser (603) and generator (604), a secondary net hot water that goes out a described secondary net hot water tube system (1) is introduced into the generator (604) of hot water lithium bromide absorbing unit (6), out, enter again First Heat Exchanger (4), and then enter the second heat exchanger (5), finally flow out through a secondary net hot water tube system (1) again, go out the hot water backwater of described first via secondary network hot water tube system (2) through First Heat Exchanger (4), then pass through first via secondary network hot water tube system (2) outflow, the hot water backwater who goes out described the second road secondary network hot water tube system (3) the flow through evaporimeter (601) of hot water lithium bromide absorbing unit (6), absorber (602), condenser (603) and the second heat exchanger (5).
2. the 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: the hot water backwater's parallel connection that goes out described the second road secondary network hot water tube system (3) is divided into two strands, the evaporimeter (601) of one hot water lithium bromide absorbing unit (6) of first flowing through, after cooling, entering the second heat exchanger (5) heats up with a secondary net hot water heat exchange again, another plume is after the absorber (602) of hot water lithium bromide absorbing unit (6) heats up, series connection enters condenser (603) intensification of hot water lithium bromide absorbing unit (6) again, after converging, the hot water backwater that two strand of second road secondary network hot water tube system (3) come flows out by secondary network hot water tube system (3).
3. the 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: going out the hot water backwater that described the second road secondary network hot water tube system (3) comes is that parallel connection is divided into two strands, one series connection flow through evaporimeter (601) and second heat exchanger (5) of hot water lithium bromide absorbing unit (6), another burst of parallel connection or other random order series connection flow through absorber (602) and the condenser (603) of hot water lithium bromide absorbing unit (6).
4. the 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: going out the hot water backwater that described the second road secondary network hot water tube system (3) comes is that parallel connection is divided into two strands, one series connection flow through evaporimeter (601) and second heat exchanger (5) of hot water lithium bromide absorbing unit (6), another plume is through the absorber (602) of hot water lithium bromide absorbing unit (6), then two strands of water condenser (603) of flowing through again.
5. the 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: going out the hot water backwater that described the second road secondary network hot water tube system (3) comes is that parallel connection is divided into two strands, one series connection flow through evaporimeter (601) and second heat exchanger (5) of hot water lithium bromide absorbing unit (6), another plume is through the condenser (603) of hot water lithium bromide absorbing unit (6), then two strands of water absorber (602) of flowing through again.
6. the 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: going out the hot water backwater that described the second road secondary network hot water tube system (3) comes is that parallel connection is divided into two strands, one series connection is flowed through after the evaporimeter (601) and the second heat exchanger (5) of hot water lithium bromide absorbing unit (6), any one of flowing through again in absorber (602) and the condenser (603) of hot water lithium bromide absorbing unit (6), another strand remaining that in the absorber of hot water lithium bromide absorbing unit (6) and condenser (603) of flowing through.
7. the suction-type lithium bromide heat-exchange system of a kind of two path water heat supply simultaneously described in one of them according to claim 1 ~ 6, is characterized in that: the hot water lithium bromide absorbing unit (6) in described system is single-action, economic benefits and social benefits or diarcs unit.
8. the suction-type lithium bromide heat-exchange system of a kind of two path water heat supply simultaneously described in one of them according to claim 1 ~ 6, it is characterized in that: 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) in described system are closed circulation systems, or open system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410071228.XA CN103868128B (en) | 2014-03-01 | 2014-03-01 | The suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
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| CN201410071228.XA CN103868128B (en) | 2014-03-01 | 2014-03-01 | The suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
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| CN103868128A true CN103868128A (en) | 2014-06-18 |
| CN103868128B CN103868128B (en) | 2016-05-25 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728898A (en) * | 2015-03-12 | 2015-06-24 | 朱海龙 | Heat supply pipe network heat pump adjusting system |
| CN104764068A (en) * | 2015-04-24 | 2015-07-08 | 珠海格力电器股份有限公司 | geothermal heating system |
| CN105805946A (en) * | 2016-05-13 | 2016-07-27 | 湖南同为节能科技有限公司 | Heat pump type large temperature difference heat exchange system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100984831B1 (en) * | 2010-07-06 | 2010-10-04 | 윤석구 | Cooling and heating system in each household using heat sources from combined heat and power(chp) and district heating |
| CN102135347A (en) * | 2011-04-23 | 2011-07-27 | 大连三洋制冷有限公司 | High-efficiency steam type lithium bromide double-effect absorption multifunctional cold-hot water unit |
| CN203940504U (en) * | 2014-03-01 | 2014-11-12 | 双良节能***股份有限公司 | The suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
-
2014
- 2014-03-01 CN CN201410071228.XA patent/CN103868128B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100984831B1 (en) * | 2010-07-06 | 2010-10-04 | 윤석구 | Cooling and heating system in each household using heat sources from combined heat and power(chp) and district heating |
| CN102135347A (en) * | 2011-04-23 | 2011-07-27 | 大连三洋制冷有限公司 | High-efficiency steam type lithium bromide double-effect absorption multifunctional cold-hot water unit |
| CN203940504U (en) * | 2014-03-01 | 2014-11-12 | 双良节能***股份有限公司 | The suction-type lithium bromide heat-exchange system of two path water heat supply simultaneously |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728898A (en) * | 2015-03-12 | 2015-06-24 | 朱海龙 | Heat supply pipe network heat pump adjusting system |
| CN104764068A (en) * | 2015-04-24 | 2015-07-08 | 珠海格力电器股份有限公司 | geothermal heating system |
| CN104764068B (en) * | 2015-04-24 | 2018-09-14 | 珠海格力电器股份有限公司 | geothermal heating system |
| CN105805946A (en) * | 2016-05-13 | 2016-07-27 | 湖南同为节能科技有限公司 | Heat pump type large temperature difference heat exchange system and method |
| CN105805946B (en) * | 2016-05-13 | 2019-03-08 | 湖南同为节能科技有限公司 | A kind of big temperature difference heat-exchange system of pump type heat and method |
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| CN103868128B (en) | 2016-05-25 |
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