CN103512075A - Absorption heat exchanger unit combined with boiler - Google Patents
Absorption heat exchanger unit combined with boiler Download PDFInfo
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- CN103512075A CN103512075A CN201310447284.4A CN201310447284A CN103512075A CN 103512075 A CN103512075 A CN 103512075A CN 201310447284 A CN201310447284 A CN 201310447284A CN 103512075 A CN103512075 A CN 103512075A
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Abstract
The invention relates to an absorption heat exchanger unit combined with a boiler. The heat exchanger unit comprises the boiler, an absorption heat pump, a water-water heat exchanger and a water way system. The absorption heat pump is mainly composed of a hot water generator, a condenser, an absorber and an evaporator; the water way system is divided into a primary side water way system and a secondary side water way system, the primary side water way system is sequentially connected with the boiler, the hot water generator, the high-temperature side of the water-water heat exchanger and the evaporator and then returns to a centralized heat source, the secondary side water way system is divided into two ways in parallel, one way is connected with the absorber and the condenser, the other way is connected with the low-temperature side of the water-water heat exchanger, and then the two ways converge into one way in a backwater mode through a secondary net and then return to a heat consumer. Primary net hot water and the boiler are used as a driving heat source of the unit together, and temperature difference between feed water and backwater of hot water on a primary side of a central heating system is increased substantially, so that initial investments of a pipeline system and operation electric consumption of a water pump are greatly reduced, conditions are created for using low-grade heat energy even waste heat and residual heat of the heat source, thus, the utilization efficiency of comprehensive energy of the system is improved, and heat supply cost is reduced.
Description
Technical field
The present invention relates to a kind of heat exchange unit for heating, supplying hot water, be specifically related to a kind of absorption heat exchange unit of being combined with boiler that can make central heating system one secondary net hot water confession, backwater temperature difference significantly increase.
Background technology
Along with the continuous increase of concentrated supply of heating in the city scale, central heat source produces high-temperature-hot-water often to be needed could arrive hot user place through the conveying of longer distance.The in the situation that of identical heating demand, increase the confession of hot water, the hot water flow that backwater temperature difference can reduce conveying, thereby reduce the initial cost of transmission and distribution pipeline, and reduce the power consumption of water pump in system running, therefore can save for thermal energy consumption, reduce heat cost.Because thermal substation adopts plate type heat exchanger conventionally, be subject to the restriction of heat exchange difference, a secondary net return water temperature is inevitable higher than secondary network return water temperature.Therefore, the return water temperature that development of new heat transmission equipment reduces a secondary net hot water, further to increase it for, backwater temperature difference, by expanding the heat range of heat of central heat source, is saved for thermal energy consumption, reduces heat cost and produces profound significance.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of employing one secondary net hot water and the absorption heat exchange unit of with boiler being combined of boiler as the common driving of thermal source, significantly to reduce a secondary net return water temperature of heat exchange unit, and then significantly increase central heating system one secondary net hot water confession, backwater temperature difference.
For achieving the above object, the present invention takes following technical scheme: a kind of absorption heat exchange unit of being combined with boiler, it is characterized in that, and this heat exchange unit comprises boiler, absorption heat pump, water-water heat exchanger and water circuit system; Wherein, described absorption heat pump is mainly comprised of hot water generator, condenser, absorber and evaporimeter; Described water circuit system is divided into primary side water circuit system and secondary side water circuit system two parts: described primary side water circuit system adopts the connected mode of series connection, and a secondary net hot water returns to central heat source successively after the high temperature side of described boiler, hot water generator, water-water heat exchanger and evaporimeter; Described secondary side water circuit system adopts connected mode in parallel, be that secondary network backwater is divided into two-way in parallel, one tunnel is through described absorber and condenser, and another road is through the low temperature side of described water-water heat exchanger, and then described in two-way, secondary network backwater returns to hot user after merging into a road.
In a preferred embodiment, each free single-stage of hot water generator, condenser, absorber or the evaporimeter in described absorption heat pump or multistage formation.
The absorption heat exchange unit that boiler is combined, is characterized in that, this heat exchange unit comprises boiler, absorption heat pump, water-water heat exchanger and water circuit system; Wherein, described absorption heat pump is mainly comprised of hot water generator, condenser, absorber and evaporimeter; Described water circuit system is divided into primary side water circuit system and secondary side water circuit system two parts: described primary side water circuit system adopts the connected mode of mixed water, a secondary net hot water first passes through hot water generator, then be divided into two-way in parallel, mix with a secondary net hot water that enters described hot water generator successively after circulating pump and boiler on one tunnel, and central heat source is returned to successively in another road after the high temperature side of described water-water heat exchanger and evaporimeter; Described secondary side water circuit system adopts connected mode in parallel, be that secondary network backwater is divided into two-way in parallel, one tunnel is passed through described absorber and condenser successively, the low temperature side of described evaporimeter and water-water heat exchanger is passed through on another road successively, and then described in two-way, secondary network backwater returns to hot user after merging into a road.
In a preferred embodiment, each free single-stage of hot water generator, condenser, absorber or the evaporimeter in described absorption heat pump or multistage formation.
The present invention is owing to taking above technical scheme, it has the following advantages: the present invention is by boiler, absorption heat pump and water-water heat exchanger combine, utilize a secondary net hot water and boiler jointly as the driving heat source of unit, one secondary net hot water enters the hot water generator of absorption heat pump after boiler heating again, the evaporimeter of water-water heat exchanger and absorption heat pump, and then realize the heat cascade utilization of a secondary net hot water, increase by a relatively large margin the confession of central heating system primary side hot water, backwater temperature difference, significantly reduce heat supply network return water temperature, even significantly lower than secondary network inflow temperature, thereby can greatly reduce initial cost and the water pump operation power consumption of pipe-line system, for utilize thermal source low grade heat energy even used heat waste heat etc. created condition, thereby improve system synthesis efficiency of energy utilization, reduce heat cost.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is carried out to detailed describing.Yet only providing in order to understand better the present invention of accompanying drawing is provided, they not should be understood to limitation of the present invention.
Fig. 1 is the schematic flow sheet of the embodiment of the present invention 1;
Fig. 2 is the schematic flow sheet of the embodiment of the present invention 2.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
The heat exchange unit 10 providing according to the invention process 1 has been provided Fig. 1, and this heat exchange unit 10 comprises boiler 1, absorption heat pump 2, water-water heat exchanger 3 and water circuit system 4.Wherein, absorption heat pump 2 is mainly comprised of hot water generator 2-1, condenser 2-2, absorber 2-3 and evaporimeter 2-4.Water circuit system 4 is divided into primary side water circuit system 4-1 and secondary side water circuit system 4-2 two parts: primary side water circuit system 4-1 adopts the connected mode of series connection, and a secondary net hot water leaves unit successively after the high temperature side of boiler 1, hot water generator 2-1, water-water heat exchanger 3 and evaporimeter 2-4; Secondary side water circuit system 4-2 adopts connected mode in parallel, be that secondary network backwater is divided into two-way in parallel, one tunnel is through absorber 2-3 and condenser 2-2, and another road is through the low temperature side of water-water heat exchanger 3, and then two-way secondary network backwater leaves unit after merging into a road.
The heat exchange unit 20 providing according to the invention process 2 has been provided Fig. 2, heat exchange unit 10 structural similarities in this heat exchange unit 20 and embodiment 1, difference is that primary side water circuit system 4-1 adopts the connected mode of mixed water, first a secondary net hot water pass through hot water generator 2-1, then be divided into two-way in parallel, mix with a secondary net hot water that enters hot water generator 2-1 successively after circulating pump 5 and boiler 1 on one tunnel, and unit is left successively in another road after the high temperature side of water-water heat exchanger 3 and evaporimeter 2-4.
In a preferred embodiment, the hot water generator 2-1 in absorption heat pump, condenser 2-2, absorber 2-3 or evaporimeter 2-4 can or multistagely form by single-stage separately, to meet the different heat-exchanging state in unit both sides.
The heat exchanger component providing below in conjunction with embodiment 1-2 is not mentionleted alone the flow process that bright the present invention applies in certain central heating system.
Embodiment 1: as shown in Figure 1, in actual motion, first a secondary net hot water of being exported by central heat source enter the further heat temperature raising of boiler 1, then enter the concentrated solution in hot water generator 2-1 heating absorption formula heat pump 2, the high temperature side that enters water-water heat exchanger 3 from hot water generator 2-1 outflow after one secondary net hot water cooling is as heat source, the secondary network backwater of heating water-water heat exchanger 3 low temperature sides, one secondary net hot water further flows out and enters evaporimeter 2-4 from water-water heat exchanger 3 after cooling, in evaporimeter 2-4, again after cooling, returns to central heat source; Secondary network backwater Zhong mono-tunnel enters the low temperature side of water-water heat exchanger 3, carry out heat exchange intensification with a secondary net hot water of water-water heat exchanger 3 high temperature sides, another road enters absorber 2-3 and condenser 2-2 cascade raising temperature, after secondary network backwater last and water-water heat exchanger 3 outlets converge, returns to hot user.
Embodiment 2: as shown in Figure 2, in actual motion, the flow process of secondary network backwater is identical with embodiment 1, but first a secondary net hot water enter the concentrated solution in hot water generator 2-1 heating receipts formula heat pump 2, after one secondary net hot water cooling, from hot water generator 2-1, flow out and be divided into two-way, the circulating pump 5 of leading up to enters after boiler 1 heats up and mixes with a secondary net hot water that enters hot water generator 2-1, and another road enters after the high temperature side of water-water heat exchanger 3 and evaporimeter 2-4 lower the temperature step by step and returns to central heat source.
The various embodiments described above are only for further describing object of the present invention, technical scheme and beneficial effect; be not limited to the present invention; within the spirit and principles in the present invention all; any modification of making, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (4)
1. an absorption heat exchange unit of being combined with boiler, is characterized in that, this heat exchange unit comprises boiler, absorption heat pump, water-water heat exchanger and water circuit system; Wherein, described absorption heat pump is mainly comprised of hot water generator, condenser, absorber and evaporimeter;
Described water circuit system is divided into primary side water circuit system and secondary side water circuit system two parts: described primary side water circuit system adopts the connected mode of series connection, and a secondary net hot water returns to central heat source successively after the high temperature side of described boiler, hot water generator, water-water heat exchanger and evaporimeter; Described secondary side water circuit system adopts connected mode in parallel, be that secondary network backwater is divided into two-way in parallel, one tunnel is through described absorber and condenser, and another road is through the low temperature side of described water-water heat exchanger, and then described in two-way, secondary network backwater returns to hot user after merging into a road.
2. a kind of absorption heat exchange unit of being combined with boiler as claimed in claim 1, is characterized in that, each free single-stage of the hot water generator in described absorption heat pump, condenser, absorber or evaporimeter or multistage formation.
3. an absorption heat exchange unit of being combined with boiler, is characterized in that, this heat exchange unit comprises boiler, absorption heat pump, water-water heat exchanger and water circuit system; Wherein, described absorption heat pump is mainly comprised of hot water generator, condenser, absorber and evaporimeter;
Described water circuit system is divided into primary side water circuit system and secondary side water circuit system two parts: described primary side water circuit system adopts the connected mode of mixed water, a secondary net hot water first passes through hot water generator, then be divided into two-way in parallel, mix with a secondary net hot water that enters described hot water generator successively after circulating pump and boiler on one tunnel, and central heat source is returned to successively in another road after the high temperature side of described water-water heat exchanger and evaporimeter; Described secondary side water circuit system adopts connected mode in parallel, be that secondary network backwater is divided into two-way in parallel, one tunnel is passed through described absorber and condenser successively, the low temperature side of described evaporimeter and water-water heat exchanger is passed through on another road successively, and then described in two-way, secondary network backwater returns to hot user after merging into a road.
4. a kind of absorption heat exchange unit of being combined with boiler as claimed in claim 3, is characterized in that, each free single-stage of the hot water generator in described absorption heat pump, condenser, absorber or evaporimeter or multistage formation.
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| CN201310447284.4A CN103512075B (en) | 2013-09-25 | 2013-09-25 | A kind of absorption heat exchange unit being combined with boiler |
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| CN201310447284.4A CN103512075B (en) | 2013-09-25 | 2013-09-25 | A kind of absorption heat exchange unit being combined with boiler |
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| CN103512075A true CN103512075A (en) | 2014-01-15 |
| CN103512075B CN103512075B (en) | 2016-06-15 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822284A (en) * | 2014-02-28 | 2014-05-28 | 烟台荏原空调设备有限公司 | Adsorption type heat exchanger unit |
| CN103836699A (en) * | 2014-02-28 | 2014-06-04 | 烟台荏原空调设备有限公司 | Absorptive heat exchanger unit |
| CN104832970A (en) * | 2015-04-24 | 2015-08-12 | 珠海格力电器股份有限公司 | Absorption type heat exchanger unit |
| CN104848325A (en) * | 2015-04-24 | 2015-08-19 | 珠海格力电器股份有限公司 | Absorption heat pump type heat exchanger unit |
| CN104879818A (en) * | 2015-04-24 | 2015-09-02 | 珠海格力电器股份有限公司 | Heat exchanger unit |
| CN106352589A (en) * | 2016-08-30 | 2017-01-25 | 北京华源泰盟节能设备有限公司 | Split absorbing-type heat exchange unit and heat exchange method thereof |
| CN107606814A (en) * | 2017-10-18 | 2018-01-19 | 双良节能***股份有限公司 | The big temperature difference suction-type lithium bromide heat-exchange unit of Very Low Clearance |
| CN107621001A (en) * | 2017-09-06 | 2018-01-23 | 同方节能装备有限公司 | A kind of big temperature difference heat-exchange unit of fuel supplementing type low-temperature heat source |
| CN108050725A (en) * | 2017-10-23 | 2018-05-18 | 西安交通大学 | A kind of industrial afterheat recovery system of integrated multi-heat source heat pump |
| CN110030758A (en) * | 2019-04-30 | 2019-07-19 | 清华大学 | A kind of big temperature difference absorption heat pump of multi-stage, efficient and absorption heat exchange device |
| CN110878957A (en) * | 2019-12-23 | 2020-03-13 | 北京市热力集团有限责任公司 | Urban heat energy comprehensive utilization system and method |
| CN111336573A (en) * | 2019-08-30 | 2020-06-26 | 同方节能工程技术有限公司 | Novel absorption type large-temperature-difference heat exchange unit |
| CN113757763A (en) * | 2021-08-17 | 2021-12-07 | 北京清建能源技术有限公司 | Multi-energy combined type heating system |
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| CN101236032A (en) * | 2008-02-28 | 2008-08-06 | 清华大学 | Heat pump type heat exchanging unit |
| CN101943470A (en) * | 2009-07-09 | 2011-01-12 | 清华大学 | Novel absorption gas-water heat exchange unit |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822284A (en) * | 2014-02-28 | 2014-05-28 | 烟台荏原空调设备有限公司 | Adsorption type heat exchanger unit |
| CN103836699A (en) * | 2014-02-28 | 2014-06-04 | 烟台荏原空调设备有限公司 | Absorptive heat exchanger unit |
| CN104879818B (en) * | 2015-04-24 | 2018-03-30 | 珠海格力电器股份有限公司 | Heat exchanger unit |
| CN104879818A (en) * | 2015-04-24 | 2015-09-02 | 珠海格力电器股份有限公司 | Heat exchanger unit |
| CN104832970A (en) * | 2015-04-24 | 2015-08-12 | 珠海格力电器股份有限公司 | Absorption type heat exchanger unit |
| CN104848325A (en) * | 2015-04-24 | 2015-08-19 | 珠海格力电器股份有限公司 | Absorption heat pump type heat exchanger unit |
| CN104832970B (en) * | 2015-04-24 | 2018-07-10 | 珠海格力电器股份有限公司 | Absorption type heat exchanger unit |
| CN106352589A (en) * | 2016-08-30 | 2017-01-25 | 北京华源泰盟节能设备有限公司 | Split absorbing-type heat exchange unit and heat exchange method thereof |
| CN107621001A (en) * | 2017-09-06 | 2018-01-23 | 同方节能装备有限公司 | A kind of big temperature difference heat-exchange unit of fuel supplementing type low-temperature heat source |
| CN107606814B (en) * | 2017-10-18 | 2024-01-05 | 双良节能***股份有限公司 | Ultra-low-height large-temperature-difference lithium bromide absorption heat exchanger unit |
| CN107606814A (en) * | 2017-10-18 | 2018-01-19 | 双良节能***股份有限公司 | The big temperature difference suction-type lithium bromide heat-exchange unit of Very Low Clearance |
| CN108050725A (en) * | 2017-10-23 | 2018-05-18 | 西安交通大学 | A kind of industrial afterheat recovery system of integrated multi-heat source heat pump |
| CN110030758A (en) * | 2019-04-30 | 2019-07-19 | 清华大学 | A kind of big temperature difference absorption heat pump of multi-stage, efficient and absorption heat exchange device |
| CN111336573A (en) * | 2019-08-30 | 2020-06-26 | 同方节能工程技术有限公司 | Novel absorption type large-temperature-difference heat exchange unit |
| CN111336573B (en) * | 2019-08-30 | 2024-05-28 | 同方节能工程技术有限公司 | Novel absorption type large-temperature-difference heat exchanger unit |
| CN110878957A (en) * | 2019-12-23 | 2020-03-13 | 北京市热力集团有限责任公司 | Urban heat energy comprehensive utilization system and method |
| CN113757763A (en) * | 2021-08-17 | 2021-12-07 | 北京清建能源技术有限公司 | Multi-energy combined type heating system |
| CN113757763B (en) * | 2021-08-17 | 2022-09-13 | 北京清建能源技术有限公司 | Multi-energy combined type heating system |
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