CN103822284A - Adsorption type heat exchanger unit - Google Patents
Adsorption type heat exchanger unit Download PDFInfo
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- CN103822284A CN103822284A CN201410073002.3A CN201410073002A CN103822284A CN 103822284 A CN103822284 A CN 103822284A CN 201410073002 A CN201410073002 A CN 201410073002A CN 103822284 A CN103822284 A CN 103822284A
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Abstract
The invention discloses an adsorption type heat exchanger unit, which comprises a hot water adsorption type heat pump unit, a water-water heat exchanger, a primary side pipeline and a secondary side pipeline, wherein the primary side pipeline successively passes through the generator of the heat pump unit, the water-water heat exchanger and the evaporator of the heat pump unit from water supply to water return; the secondary side pipeline passes through the absorber of the heat pump unit, a condenser and the water-water heat exchanger; the heat exchanger unit also comprises a heat supply network heater; before the primary side pipeline enters the generator of the heat pump unit, the primary side pipeline firstly passes through the heat supply network heater. Compared with the prior art, the adsorption type heat exchanger unit has the characteristics that the primary side pipeline is heated by the heat supply network heater before the primary side pipeline enters a heat exchange pump unit to realize a heat supplementation function and further improve the water supply temperature of the primary side pipeline so as to improve the water supply and water return temperature difference of primary side hot water, and therefore the initial investment and operation cost of the adsorption type heat exchanger unit can be further reduced.
Description
Technical field
The present invention relates to heating equipment technical field, relate in particular to a kind of absorption heat exchange unit.
Background technology
Along with concentrated supply of heating in the city scale increases year by year, the high-temperature-hot-water that central heat source produces need to could arrive for thermal region through the conveying of longer distance, in the situation that heating load is identical, the temperature difference increasing between water supply, backwater can reduce water supply flow, thereby reduce the preliminary investment of pipeline, meanwhile, can also reduce the power consumption of water pump, therefore can reduce for thermal energy consumption and heat cost.
Please refer to Fig. 1, Fig. 1 is the structural representation of the disclosed absorption heat exchange unit of patent CN101236032A; Briefly introduce the operation principle of this heat exchange unit and the technological deficiency of existence thereof below.
As shown in Figure 1, this heat exchange unit comprise hot water type absorption heat pump unit 1 ', water-water heat exchanger 2 ' and various connecting line and annex.The water circuit system of connecting line comprises primary side pipeline 3 ' and secondary side pipeline 4 ' two parts.Primary side pipeline 3 ' employing is the mode of order series connection step by step, pass through successively source pump 1 ' generator, water-water heat exchanger 2 ' and source pump 1 ' evaporimeter.Secondary side pipeline 4 ' process source pump 1 ' absorber, condenser and water-water heat exchanger 2 '.
Due to heat exchange unit primary side pipeline 3 ' in hot water through source pump 1 ' generator, water-water heat exchanger 2 ' and source pump 1 ' evaporimeter, the heat of hot water is carried out to staged utilization, therefore the temperature difference between water supply, the backwater of primary side hot water is larger, has higher rate of thermal water utilization.
But, the primary side pipeline 3 of above-mentioned heat exchange unit ' water supply, backwater between the temperature difference still large not, when the supply water temperature of primary side hot water or flow are when lower, cannot guarantee secondary side supply water temperature.In prior art, there is concurrent heating function even if partially absorb formula heat exchange unit, in the time that concurrent heating part breaks down, can cause whole heat exchange unit to run well.
In view of this, urgently for above-mentioned technical problem, existing absorption heat exchange unit is optimized to design, further improves the temperature difference between water supply, backwater, guarantee the stability of primary side hot water, reduce for thermal energy consumption and heat cost.
Summary of the invention
Object of the present invention is for providing a kind of absorption heat exchange unit, this heat exchange unit first passed through heat exchangers for district heating before primary side pipeline enters source pump, realize the function of concurrent heating, the further supply water temperature of rising primary side hot water, thereby increase water supply, the backwater temperature difference of primary side hot water, reduce initial cost and operating cost.
For solving the problems of the technologies described above, the invention provides a kind of absorption heat exchange unit, comprise hot water type absorption heat pump unit, water-water heat exchanger and primary side pipeline, secondary side pipeline, described primary side pipeline passes through the evaporimeter of the generator of described source pump, described water-water heat exchanger and described source pump from supplying water successively to backwater, and described secondary side pipeline is through absorber, condenser and the water-water heat exchanger of described source pump; Described heat exchange unit also comprises heat exchangers for district heating, and described primary side pipeline first passes through described heat exchangers for district heating before entering the generator of described source pump.
Adopt this structure, in the course of work, the hot water of primary side pipeline is first heated in heat exchangers for district heating, then enter the generator of source pump as driving heat source, the concentrated lithium-bromide solution of heating, after cooling, flow out the generator of source pump, then enter the high temperature side of water-water heat exchanger as heat source, heating enters the hot water backwater of the low temperature side of water-water heat exchanger, further after cooling, flow out water-water heat exchanger, finally enter the evaporimeter of source pump as low-grade heat source, after heat release cooling, flow out the evaporimeter of source pump, return to central heat source.Absorber, condenser heat absorption that the part pipeline of secondary side hot water enters source pump heat up, another part pipeline enters the low temperature side of water-water heat exchanger, heat up with the high temperature side heat exchange of water-water heat exchanger, the hot water after intensification flows out heat exchanger group and offers user's heat supply.
Compared with prior art, heat exchangers for district heating heated it before primary side pipeline enters heat exchange pump group, realized the function of concurrent heating, the supply water temperature of primary side pipeline that further raises, thus increase water supply, the backwater temperature difference of primary side hot water.And, heat exchangers for district heating utilizes drawing gas of steam turbine or the steam of drawing from boiler carrys out the recirculated water heating pipe line, be that heat medium is water, low price, and be not easy to cause corrosion, the temperature of required heating is lower, and efficiency is higher, and then can reduce initial cost and the operating cost of absorption heat exchange unit.
Preferably, described heat exchangers for district heating is the heater of controlling separately.
Preferably, described heat exchangers for district heating is direct combustion type heater.
Preferably, described heat exchangers for district heating is steam type heater.
Preferably, described heat exchangers for district heating is water-water heater.
Preferably, described heat exchangers for district heating is electric heater.
Preferably, described secondary side pipeline comprises the first pipeline, the second pipeline, and described the first pipeline is through absorber, the condenser of described source pump, and described the second pipeline is through described water-water heat exchanger.
Preferably, the feed pipe of described secondary side pipeline branches into the first branch road, the second branch road, described the first branch road is through absorber, the condenser of described source pump, described the second branch road is through described water-water heat exchanger, and after described the first branch road, described the second branch road cooling, merges into the return pipe of described secondary side pipeline.
Preferably, the number of described water-water heat exchanger is two;
Described primary side pipeline first passes through the generator of described source pump from supplying water to backwater, more in parallel through two described water-water heat exchangers, finally by the evaporimeter of crossing described source pump;
Described secondary side pipeline comprises the 3rd pipeline, the 4th pipeline, the feed pipe of described the 3rd pipeline branches into the 3rd branch road, the 4th branch road, described the 3rd branch road is through absorber, the condenser of described source pump, described the 4th branch road is through water-water heat exchanger described in one of them, and after described the 3rd branch road, described the 4th branch road cooling, merges into the return pipe of described the 3rd pipeline; Described the 4th pipeline is through another water-water heat exchanger.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of absorption heat exchange unit in prior art;
Fig. 2 is the structural representation of the first specific embodiment of absorption heat exchange unit provided by the present invention;
Fig. 3 is the structural representation of the second specific embodiment of absorption heat exchange unit provided by the present invention;
Fig. 4 is the structural representation of the third specific embodiment of absorption heat exchange unit provided by the present invention.
Wherein, the corresponding relation between Reference numeral and the component names in Fig. 1 is:
Source pump 1 '; Water-water heat exchanger 2 '; Primary side pipeline 3 '; Secondary side pipeline 4 ';
Corresponding relation between Reference numeral and component names in Fig. 2 to Fig. 4 is:
The specific embodiment
Core of the present invention is for providing a kind of absorption heat exchange unit, the primary side pipeline of this heat exchange unit first passed through heat exchangers for district heating before entering source pump, there is good concurrent heating function, the supply water temperature of rising primary side hot water, thereby increase water supply, the backwater temperature difference of primary side hot water, reduce the operating cost of absorption heat exchange unit.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 2, Fig. 2 is the structural representation of the first specific embodiment of absorption heat exchange unit provided by the present invention.
In a kind of specific embodiment, as shown in Figure 2, the invention provides a kind of absorption heat exchange unit, comprise hot-water type heat exchangers for district heating 5, absorption type heat pump assembly 1, water-water heat exchanger 2 and primary side pipeline 3, secondary side pipeline 4.Primary side pipeline 3 is from the first evaporimeter of process heat exchangers for district heating 5, the generator that passes through again source pump 1, water-water heat exchanger 2 and source pump 1 of backwater that supplies water.Secondary side pipeline 4 is through absorber, condenser and the water-water heat exchanger 2 of source pump 1.
Adopt this structure, in the course of work, the hot water of primary side pipeline 3 is first heated in heat exchangers for district heating 5, then enter the generator of source pump 1 as driving heat source, the concentrated lithium-bromide solution of heating, after cooling, flow out the generator of source pump 1, then enter the high temperature side of water-water heat exchanger 2 as heat source, heating enters the hot water backwater of the low temperature side of water-water heat exchanger 2, further after cooling, flow out water-water heat exchanger 2, finally enter the evaporimeter of source pump 1 as low-grade heat source, after heat release cooling, flow out the evaporimeter of source pump 1, return to central heat source.Absorber, condenser heat absorption that the part pipeline of secondary side hot water enters source pump 1 heat up, another part pipeline enters the low temperature side of water-water heat exchanger 2, heat up with the high temperature side heat exchange of water-water heat exchanger 2, the hot water after intensification flows out heat exchanger group and offers user's heat supply.
Compared with prior art, heat exchangers for district heating 5 heated it before primary side pipeline 3 enters heat exchange pump group, realized the function of concurrent heating, the supply water temperature of primary side pipeline 3 that further raises, thus increase water supply, the backwater temperature difference of primary side hot water.And, heat exchangers for district heating utilizes drawing gas of steam turbine or the steam of drawing from boiler carrys out the recirculated water heating pipe line, be that heat medium is water, low price, and be not easy to cause corrosion, the temperature of required heating is lower, and efficiency is higher, and then can reduce initial cost and the operating cost of absorption heat exchange unit.
Further, in scheme, above-mentioned heat exchangers for district heating 5 is the heater of controlling separately.
Adopt this structure, heat exchangers for district heating 5 and other devices of absorption heat exchange unit are worked alone respectively, even if heat exchangers for district heating 5 breaks down, can not work on, also can not have influence on the work of other parts of absorption heat exchange unit.Compared with the structure of connecting with other parts of heat exchange unit with heat exchangers for district heating in prior art 5, further guarantee the job stability of absorption heat exchange unit.
The particular type of above-mentioned heat exchangers for district heating 5 can be varied.
In concrete scheme, above-mentioned heat exchangers for district heating 5 is direct combustion type heater.This heater, by burning stone fuel or liquid fuel or gaseous fuel direct ad valorem volume primary side hot water, can be realized simply, easily the hot water in primary side pipeline 3 is heated, and has higher efficiency.
Can expect, above-mentioned heat exchangers for district heating 5 can also be other types, for example, and steam type heater, the Topography primary side hot water of emitting by steam-condensation; Or water-water heater, heats primary side hot water by high-temperature water heat exchange; Or electric heater, heats primary side hot water by electrically heated mode.
Above-mentioned heat exchangers for district heating can adopt automatic control, detects in real time the temperature of primary side hot water line outlet, and when this temperature is during lower than desired value, heat exchangers for district heating is opened; When this temperature is during higher than desired value, heat exchangers for district heating progressively reduces heat input, until close.Certainly, above-mentioned heat exchangers for district heating can also adopt manual control, and user can select voluntarily according to actual needs and change.
The concrete set-up mode of the secondary side pipeline 4 of above-mentioned absorption heat exchange unit can also be further set.
In a kind of specific embodiment, as shown in Figure 2, above-mentioned secondary side pipeline 4 comprises that the first pipeline 41, the second pipeline 42, the first pipelines 41 pass through absorber, the condenser of source pump 1 from supplying water successively to backwater, and the second pipeline 42 is through water-water heat exchanger 2.
Adopt said structure, the first pipeline 41 of secondary side pipeline 4 heats up through absorber, the condenser heat absorption of source pump 1 separately, the second pipeline 42 heats up through the low temperature side heat absorption of water-water heat exchanger 2 separately, can absorb comparatively fully the heat of primary side pipeline 3, so that the temperature difference between water supply, the backwater of primary side pipeline 3 is larger.In addition, because the first pipeline 41 and the second pipeline 42 arrange separately, therefore the secondary side hot water that the first pipeline 41 of this absorption heat exchange unit, the second pipeline 42 can be exported two kinds of different parameters, is convenient to be transported to different hot users by secondary side pipe network separately respectively.
Please refer to Fig. 3, Fig. 3 is the structural representation of the second specific embodiment of absorption heat exchange unit provided by the present invention.
In the another kind of specific embodiment, as shown in Figure 3, the feed pipe of above-mentioned secondary pipeline can branch into the first branch road 43, the second branch road 44, the first branch road 43 passes through absorber, the condenser of source pump 1 from supplying water successively to backwater, the second branch road 44 is through the low temperature side of water-water heat exchangers 2, and after the first branch road 43, the second branch road 44 coolings, merges into the return pipe of secondary side pipeline 4.
Adopt this structure, because the first branch road 43, the second branch road 44 share a feed pipe, a return pipe, therefore this secondary side pipeline 4 is exported a kind of secondary side hot water of parameter, only needs a secondary side pipe network to be transported to identical hot user.This structure is applicable to the relatively uniform area of heat demand.
Please refer to Fig. 4, Fig. 4 is the structural representation of the third specific embodiment of absorption heat exchange unit provided by the present invention.
In another specific embodiment, as shown in Figure 4, the number of above-mentioned water-water heat exchanger 2 can be two.Primary side pipeline 3 first passes through the generator of source pump 1 from supplying water to backwater, more in parallel through two water-water heat exchangers 2, finally by the evaporimeter of crossing source pump 1.Secondary side pipeline 4 comprises the 3rd pipeline 45, the 4th pipeline 46, the feed pipe of the 3rd pipeline 45 branches into the 3rd branch road 451, the 4th branch road 452, the 3rd branch road 451 passes through absorber, the condenser of source pump 1 from supplying water successively to backwater, the 4th branch road 452 is through one of them water-water heat exchanger 2, and after the 3rd branch road 451, the 4th branch road 452 coolings, merges into the return pipe of the 3rd pipeline 45; The 4th pipeline 46 is through another water-water heat exchanger 2.
Adopt this structure, because the 3rd branch road 451, the 4th branch road 452 share a feed pipe, return pipe, therefore the 3rd pipeline 45 of this secondary side pipeline 4 is exported a kind of secondary side hot water of parameter.Due to the 4th pipeline 46 and the independent setting of the 3rd pipeline 45, therefore the 4th pipeline 46 can be exported the secondary side hot water of another kind of parameter.This heat exchange unit can be exported two kinds of secondary side hot water that parameter is different, and wherein the 3rd pipeline 45 is exported the hot water after the merging of heat exchange pump group, water-water heat exchanger 2 that is, what the 4th pipeline 46 was exported is the hot water through another water-water heat exchanger 2.
It will also be appreciated that, the number of above-mentioned water-water heat exchanger 2 can also be three or more, for example, the number that water-water heat exchanger 2 is worked as in setting is three, above-mentioned primary side pipeline 3 first passes through the generator of source pump 1 from supplying water to backwater, in parallel through three water-water heat exchangers 2 again, finally by the evaporimeter of crossing source pump 1.Secondary side pipeline 4 comprises the 5th pipeline, the 6th pipeline, the feed pipe of the 5th pipeline branches into the 5th branch road, the 6th branch road and the 7th branch road, the 5th branch road passes through absorber, the condenser of source pump 1 from supplying water successively to backwater, the 6th branch road is through one of them water-water heat exchanger 2, the 7th branch road passes through another water-water heat exchanger 2, and after the 5th branch road, the 6th branch road and the cooling of the 7th branch road, merges into the return pipe of secondary side pipeline 4; The 6th pipeline is through last water-water heat exchanger 2.
Like this, also can obtain two kinds of secondary side hot water that parameter is different, the heat exchange unit shown in design parameter and Fig. 4 different again.
As can be seen here, the combination of above-mentioned heat exchange unit can have varied, and the design parameter of the secondary side hot water that user can be is according to actual needs used in combination voluntarily.
Above a kind of absorption heat exchange unit provided by the present invention is described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (9)
1. an absorption heat exchange unit, comprise hot water type absorption heat pump unit (1), water-water heat exchanger (2) and primary side pipeline (3), secondary side pipeline (4), described primary side pipeline (3) passes through the evaporimeter of the generator of described source pump (1), described water-water heat exchanger (2) and described source pump (1) from supplying water successively to backwater, and described secondary side pipeline (4) is through absorber, condenser and the water-water heat exchanger (2) of described source pump (1); It is characterized in that, described heat exchange unit also comprises heat exchangers for district heating (5), before described primary side pipeline (3) enters the generator of described source pump (1), first passes through described heat exchangers for district heating (5).
2. absorption heat exchange unit according to claim 1, is characterized in that, described heat exchangers for district heating (5) is the heater of controlling separately.
3. absorption heat exchange unit according to claim 2, is characterized in that, described heat exchangers for district heating (5) is direct combustion type heater.
4. absorption heat exchange unit according to claim 2, is characterized in that, described heat exchangers for district heating (5) is steam type heater.
5. absorption heat exchange unit according to claim 2, is characterized in that, described heat exchangers for district heating (5) is water-water heater.
6. absorption heat exchange unit according to claim 2, is characterized in that, described heat exchangers for district heating (5) is electric heater.
7. according to the absorption heat exchange unit described in claim 1-6 any one, it is characterized in that, described secondary side pipeline (4) comprises the first pipeline (41), the second pipeline (42), described the first pipeline (41) is through absorber, the condenser of described source pump (1), and described the second pipeline (42) is through described water-water heat exchanger (2).
8. according to the absorption heat exchange unit described in claim 1-6 any one, it is characterized in that, the feed pipe of described secondary side pipeline (4) branches into the first branch road (43), the second branch road (44), described the first branch road (43) is through absorber, the condenser of described source pump (1), described the second branch road (44) is through described water-water heat exchanger (2), and after the cooling of described the first branch road (43), described the second branch road (44), merges into the return pipe of described secondary side pipeline (4).
9. according to the absorption heat exchange unit described in claim 1-6 any one, it is characterized in that, the number of described water-water heat exchanger (2) is two;
Described primary side pipeline (3) first passes through the generator of described source pump (1) from the backwater that supplies water, more in parallel through two described water-water heat exchangers (2), finally by the evaporimeter of crossing described source pump (1);
Described secondary side pipeline (4) comprises the 3rd pipeline (45), the 4th pipeline (46), the feed pipe of described the 3rd pipeline (45) branches into the 3rd branch road (451), the 4th branch road (452), described the 3rd branch road (451) is through absorber, the condenser of described source pump (1), described the 4th branch road (452) is through water-water heat exchanger (2) described in one of them, and after described the 3rd branch road (451), described the 4th branch road (452) cooling, merges into the return pipe of described the 3rd pipeline (45); Described the 4th pipeline (46) is through another water-water heat exchanger (2).
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| CN201410073002.3A CN103822284A (en) | 2014-02-28 | 2014-02-28 | Adsorption type heat exchanger unit |
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| CN201410073002.3A CN103822284A (en) | 2014-02-28 | 2014-02-28 | Adsorption type heat exchanger unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104879818A (en) * | 2015-04-24 | 2015-09-02 | 珠海格力电器股份有限公司 | Heat exchanger unit |
| CN105737235A (en) * | 2014-12-11 | 2016-07-06 | 盾安（天津）节能***有限公司 | Waste heat recovery system and method |
| CN105953426A (en) * | 2016-05-13 | 2016-09-21 | 湖南同为节能科技有限公司 | Heat pump type large-temperature-difference heat supply method |
| CN109579107A (en) * | 2018-11-20 | 2019-04-05 | 中国联合网络通信集团有限公司 | Waste heat for supplying system for data center |
| CN109737475A (en) * | 2018-12-20 | 2019-05-10 | 中国联合网络通信集团有限公司 | A kind of data center's waste heat cleaning heating system |
| CN112555960A (en) * | 2020-11-27 | 2021-03-26 | 清华大学 | Double-water-outlet temperature heating station |
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| CN112555960A (en) * | 2020-11-27 | 2021-03-26 | 清华大学 | Double-water-outlet temperature heating station |
| CN112555960B (en) * | 2020-11-27 | 2022-07-08 | 清华大学 | Double-water-outlet temperature heating station |
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Application publication date: 20140528 |