CN104879818B - Heat-exchange unit - Google Patents
Heat-exchange unit Download PDFInfo
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- CN104879818B CN104879818B CN201510203097.0A CN201510203097A CN104879818B CN 104879818 B CN104879818 B CN 104879818B CN 201510203097 A CN201510203097 A CN 201510203097A CN 104879818 B CN104879818 B CN 104879818B
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Abstract
The invention provides a kind of heat-exchange unit, including absorption type heat pump assembly and water water- to-water heat exchanger, the absorption type heat pump assembly is connected with the water water- to-water heat exchanger by connecting line；The connecting line is divided into a lateral line and secondary lateral line；Lateral line is by the way of sequential concatenation step by step；Lateral line flows out the heat-exchange unit after the water water- to-water heat exchanger and the evaporator successively by the water water- to-water heat exchanger and the evaporator of the absorption type heat pump assembly, the hot water of a lateral line successively.The primary side hot water of the heat-exchange unit of the present invention is successively by water water- to-water heat exchanger and the evaporator of absorption type heat pump assembly, the resistance that the primary side hot water needs to overcome is water water- to-water heat exchanger and evaporator sum, compared with prior art, the resistance of primary side hot water is from 15mH2More than O is down to 8mH2Below O, it is not necessary to extra to increase once net water pump.
Description
Technical field
The present invention relates to a kind of heat-exchange unit field, more particularly to a kind of heat-exchange unit using absorption type heat pump assembly.
Background technology
Application of the thermal power cogeneration central heating system in northern China urban heating is very universal.Reduce central heating system
The once net return water temperature of system, the performance of co-generation unit can be substantially improved；Its one side is advantageous to reclaim Cogeneration Heat
Condensation heat at source is used for heat supply, and the conveying heat of central heating network on the other hand can be significantly increased.Various at present use is inhaled
Once net return water temperature can be greatly reduced in the heat-exchange unit of receipts formula heat pump, in practice large-scale application,.
ZL2008101010645 proposes a kind of heat-exchange unit using absorption heat pump, is being concentrated originally for substituting
The heat exchanger used in each thermal substation of heat supply network, the leaving water temperature that achievable primary side goes out heat-exchange unit enter water temperature less than secondary side
Degree.In the art, a lateral line is by the way of sequential concatenation step by step, successively by the generator of absorption heat pump, water-
The evaporator of water- to-water heat exchanger high temperature side, absorption heat pump, secondary lateral line hot water by absorption heat pump absorber, absorption
Condenser, the water-water heat exchanger low temperature side of heat pump.But there is following defect for this mode：
1st, in the heat-exchange unit, the resistance of primary side hot water is excessive.Because a lateral line is using sequential concatenation step by step
Mode, successively by the generator of absorption heat pump, water-water heat exchanger, absorption heat pump evaporator, primary side hot water need
The resistance overcome is generator, water-water heat exchanger, evaporator sum (generally 15mH2More than O).Due to primary side hot water
Lift provides (generally 10mH by Integrated mining technology2Within O), often occur once net lift deficiency situation, it is necessary to
Primary side increases a water pump in addition.
2nd, generator and evaporator velocity in pipes are too small, and the coefficient of heat transfer is relatively low.On the one hand, due to realizing primary side hot water
The big temperature difference, in the big temperature difference heat-exchange unit, the flow of primary side hot water be only use the 60% of conventional water-water heat exchanger with
Under.On the other hand, limited by a collateral resistance, the flow number of generator and evaporator is difficult to increase.Therefore, in the heat exchanger
In group, the velocity in pipes of generator and evaporator is below 0.6m/s, causes the coefficient of heat transfer of generator and evaporator relatively low, machine
The volume increase of group.
The content of the invention
For the above-mentioned coefficient of heat transfer it is relatively low the problem of, it is an object of the invention to provide a kind of new heat-exchange unit.
Technical scheme is as follows：
A kind of heat-exchange unit, including absorption type heat pump assembly and water-water heat exchanger, the absorption type heat pump assembly and described
Water-water heat exchanger is connected by connecting line；
The connecting line includes a lateral line and secondary lateral line；
Lateral line is by the way of sequential concatenation step by step；Lateral line passes through the water-water successively
The evaporator of heat exchanger and the absorption type heat pump assembly, the hot water of a lateral line is successively by the water-water heat exchange
The heat-exchange unit is flowed out after device and the evaporator.
In one of the embodiments, the secondary lateral line includes tie point parallel with one another and the second branch road；
Wherein, the tie point passes through the absorber of the absorption type heat pump assembly and the absorption type heat pump machine successively
The condenser of group；The secondary water of the tie point is sequentially entered after the absorber and the condenser are heated described in outflow
Heat-exchange unit；
Second branch road passes through generation of the low temperature side with the absorption type heat pump assembly of the water-water heat exchanger successively
Device；The secondary water of second branch road initially enter water-water heat exchanger low temperature side be heated after flow out the heat exchange of the water-water
Device, flow out the heat-exchange unit after being exchanged heat afterwards into the generator.
In one of the embodiments, the water-water heat exchanger includes the first water-water heat exchanger and the second water-water heat exchange
Device；
Lateral line passes through first water-water heat exchanger, second water-water heat exchanger and the suction successively
The evaporator of receipts formula source pump, the hot water of a lateral line is successively by first water-water heat exchanger, described second
The heat-exchange unit is flowed out after water-water heat exchanger and the evaporator.
In one of the embodiments, the secondary lateral line includes tie point parallel with one another and the second branch road；
Wherein, the tie point passes through the absorber of the absorption type heat pump assembly and the absorption type heat pump machine successively
The condenser of group；The secondary water of the tie point is sequentially entered after the absorber and the condenser are heated described in outflow
Heat-exchange unit；
Second branch road is successively by the low temperature side of second water-water heat exchanger, first water-water heat exchanger
The generator of low temperature side and the absorption type heat pump assembly；The secondary water of second branch road initially enter second water-
The low temperature side of water- to-water heat exchanger flows out second water-water heat exchanger after being heated, afterwards into first water-water heat exchanger
Low temperature side flows out first water-water heat exchanger after being heated again, changed after being exchanged heat afterwards into the generator described in outflow
Heat engine group.
In one of the embodiments, the secondary lateral line includes tie point parallel with one another and the second branch road, institute
Stating the second branch road includes the second branch road a and the second branch road b parallel with one another；
Wherein, the tie point passes through the absorber of the absorption type heat pump assembly and the absorption type heat pump machine successively
The condenser of group；The secondary water of the tie point is sequentially entered after the absorber and the condenser are heated described in outflow
Heat-exchange unit；
After the secondary water of the second branch road a is heated into the low temperature side of second water-water heat exchanger described in outflow
Heat-exchange unit；
The second branch road b passes through low temperature side, first water-water heat exchanger of second water-water heat exchanger successively
Low temperature side and the absorption type heat pump assembly generator；The secondary water of the second branch road b initially enters described second
The low temperature side of water-water heat exchanger flows out second water-water heat exchanger after being heated, and enters first water-water heat exchange afterwards
The low temperature side of device flows out first water-water heat exchanger after being heated again, flow out institute after being exchanged heat afterwards into the generator
State heat-exchange unit.
In one of the embodiments, the secondary lateral line includes tie point parallel with one another and the second branch road, institute
Stating the second branch road includes the second branch road a and the second branch road b parallel with one another；
Wherein, the tie point passes through the absorber of the absorption type heat pump assembly and the absorption type heat pump machine successively
The condenser of group；The secondary water of the tie point is sequentially entered after the absorber and the condenser are heated described in outflow
Heat-exchange unit；
The second branch road a passes through the low temperature side of second water-water heat exchanger and first water-water heat exchanger successively
Low temperature side, the secondary water of the second branch road a sequentially enters the low temperature side and described first of second water-water heat exchanger
The heat-exchange unit is flowed out after the low temperature side of water-water heat exchanger；
The second branch road b passes through low temperature side, first water-water heat exchanger of second water-water heat exchanger successively
Low temperature side and the absorption type heat pump assembly generator；The secondary water of the second branch road b initially enters described second
The low temperature side of water-water heat exchanger flows out second water-water heat exchanger after being heated, and enters first water-water heat exchange afterwards
The low temperature side of device flows out first water-water heat exchanger after being heated again, flow out institute after being exchanged heat afterwards into the generator
State heat-exchange unit.
In one of the embodiments, after the secondary water of the second branch road a and the secondary water of the second branch road b mix
Flow out the heat-exchange unit.
In one of the embodiments, flowed after the secondary water of the tie point and the mixing of the secondary water of second branch road
Go out the heat-exchange unit.
In one of the embodiments, the water-water heat exchanger is at least three；Lateral line passes through institute successively
There is the evaporator of the water-water heat exchanger and the absorption type heat pump assembly；
At least one branch road of the secondary lateral line passes through at least one water-water heat exchanger and the absorption type heat
The generator of pump assembly；
At least one branch road of the secondary lateral line passes through at least one water-water heat exchanger and the absorption type heat
The condenser and generator of pump assembly.
The beneficial effects of the invention are as follows：
(1) the primary side hot water of heat-exchange unit of the invention is successively by water-water heat exchanger and absorption type heat pump assembly
Evaporator, the resistance that the primary side hot water needs to overcome is water-water heat exchanger and evaporator sum, compared with prior art, one
The resistance of secondary side hot water is from 15mH2More than O is down to 8mH2Below O, it is not necessary to extra to increase once net water pump；
(2) because primary side hot water only needs to overcome the resistance of water-water heat exchanger, therefore it is supplied to the lift of evaporator
Greatly improve；The lift that is there is provided by secondary net water pump due to the resistance of generator is overcome, therefore generation is supplied in the present invention
The lift of the water of device also greatly improves.Therefore, under enough lifts, generator and evaporator can design more flows
Number, makes the velocity in pipes of generator and evaporator bring up to 1m/s；With the increase of velocity in pipes, generator and evaporator change
Hot coefficient can increase by more than 20%, while unit volume reduces 10%..
Brief description of the drawings
Fig. 1 is the overall schematic of the embodiment one of the heat-exchange unit of the present invention；
Fig. 2 is the overall schematic of the embodiment two of the heat-exchange unit of the present invention；
Fig. 3 is the overall schematic of the embodiment three of the heat-exchange unit of the present invention.
Embodiment
In order that the object, technical solution and advantage of the heat-exchange unit of the present invention are more clearly understood, below in conjunction with specific
Drawings and the specific embodiments, the present invention will be described in further detail.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention provides a kind of heat-exchange unit, and it includes absorption type heat pump assembly and water-water heat exchanger, the absorption type heat
Pump assembly is connected with the water-water heat exchanger by connecting line；Wherein described absorption heat pump unit includes generator, condensation
Device, absorber and heat exchanger；Accordingly, the connecting line is divided into a lateral line and secondary lateral line；Side pipe
Road is by the way of sequential concatenation step by step；Lateral line passes through the water-water heat exchanger and the absorption type heat successively
The evaporator of pump assembly, the hot water of a lateral line flow out after the water-water heat exchanger and the evaporator successively
The heat-exchange unit.
The high temperature side that the hot water of a lateral line in the present invention initially enters water-water heat exchanger is exchanged heat to heat
Water-water heat exchanger is flowed out after the water of the low temperature side of water-water heat exchanger, is cooled afterwards into evaporator, after evaporator outflow
Thermal source is returned to as a water outlet.That is a water in the present invention is only needed by water-water heat exchanger and evaporator, institute gram
The resistance of clothes is water-water heat exchanger and evaporator sum.Compared with prior art, the present invention ensure that once net return water temperature
Under conditions of relatively low, the resistance of primary side hot water is reduced, makes the resistance of primary side hot water from 15mH2More than O is down to 8mH2O with
Under, it is not necessary to it is extra to increase once net water pump, so as to save equipment investment.
Preferably, as a kind of embodiment, the secondary lateral line includes tie point parallel with one another and second
Branch road；Wherein, the tie point passes through the absorber of the absorption type heat pump assembly and the absorption type heat pump assembly successively
Condenser；The secondary water of the tie point is sequentially entered and changed after the absorber and the condenser are heated described in outflow
Heat engine group；Second branch road passes through generation of the low temperature side with the absorption type heat pump assembly of the water-water heat exchanger successively
Device；The secondary water of second branch road initially enter water-water heat exchanger low temperature side be heated after flow out the heat exchange of the water-water
Device, flow out the heat-exchange unit after being exchanged heat afterwards into the generator.Secondary side in the present embodiment is intake in parallel be divided into
Two branch roads, wherein tie point successively flow through absorber in series and condenser is heated；Second branch road enters first
Enter the low temperature side of water-water heat exchanger and be heated, after water-water heat exchanger outflow, into generator so that solution occurs.It is more excellent
, as secondary water outlet to heat supply after hot water mixing caused by tie point in parallel and the second branch road.
It should be noted that the primary side hot water in the present invention releases heat after water-water heat exchanger and evaporator；One
Part secondary side hot water is heated by absorber and condenser, and another part hot water enters again after water-water heat exchanger heats
Enter generator and solution occurs to drive absorption type heat pump assembly, so that the temperature of primary side water outlet enters water temperature less than secondary side
Degree.
Preferably, as another embodiment, the water-water heat exchanger can be it is multiple, water in the present embodiment-
Water- to-water heat exchanger is two, respectively the first water-water heat exchanger and the second water-water heat exchanger；Wherein described primary side pipeline is successively
By the evaporator of first water-water heat exchanger, second water-water heat exchanger and the absorption type heat pump assembly；That is institute
The hot water for stating a lateral line passes through first water-water heat exchanger, second water-water heat exchanger and the evaporator successively
After flow out the heat-exchange unit.
Further, the secondary lateral line includes tie point parallel with one another and the second branch road；Wherein, described first
Branch road is successively by the absorber of the absorption type heat pump assembly and the condenser of the absorption type heat pump assembly；Described first
The secondary water on road, which is sequentially entered after the absorber and the condenser are heated, flows out the heat-exchange unit；Second branch road
Successively by the low temperature side of first water-water heat exchanger, the low temperature side of second water-water heat exchanger and described absorption
The generator of source pump；The low temperature side that the secondary water of second branch road initially enters second water-water heat exchanger is added
Second water-water heat exchanger is flowed out after heat, the low temperature side of entrance first water-water heat exchanger flows after being heated again afterwards
Go out first water-water heat exchanger, flow out the heat-exchange unit after being exchanged heat afterwards into the generator.
Preferably, as another embodiment, the secondary lateral line in the present embodiment includes parallel with one another
Tie point and the second branch road, second branch road include the second branch road a and the second branch road b parallel with one another；Wherein, described
One branch road is successively by the absorber of the absorption type heat pump assembly and the condenser of the absorption type heat pump assembly；Described first
The secondary water of branch road, which is sequentially entered after the absorber and the condenser are heated, flows out the heat-exchange unit；Described second
Road a secondary water flows out the heat-exchange unit after being heated into the low temperature side of second water-water heat exchanger；Described second
Road b is successively by the low temperature side of first water-water heat exchanger, the low temperature side of second water-water heat exchanger and the suction
The generator of receipts formula source pump；The secondary water of the second branch road b initially enters the low temperature side of second water-water heat exchanger
Second water-water heat exchanger is flowed out after being heated, is heated again afterwards into the low temperature side of first water-water heat exchanger
After flow out first water-water heat exchanger, afterwards into the generator heat exchange after flow out the heat-exchange unit.
Wherein, the second branch road a secondary water and the second branch road b described in the second branch road a and the second branch road b
Secondary water mixing after flow out the heat-exchange unit.
Preferably, flow out the heat exchanger after the secondary water of the tie point and the mixing of the secondary water of second branch road
Group.
When the water-water heat exchanger in the present invention is at least three, a lateral line passes through the water-water heat exchanger successively
And evaporator, that is to say, that the hot water of a lateral line, which passes sequentially through, to be entered after each water-water heat exchanger after evaporator from heat exchange
Unit flows out.And secondary lateral line can be divided into multiple branch roads, wherein at least one branch road passes through at least one water-water heat exchanger
With the generator of absorption type heat pump assembly；That is at least one branch road passes through the low temperature side and generator of water-water heat exchanger,
The secondary water of the branch road enters generator so that solution occurs after water-water heat exchanger heats；While secondary lateral line is at least
One branch road passes through the condenser and generator of the absorption type heat pump assembly.
Embodiment one
Referring to Fig. 1, the heat-exchange unit in the present embodiment includes absorption type heat pump assembly and water-water heat exchanger 105, wherein inhaling
Receipts formula source pump includes generator 101, condenser 102, absorber 103 and evaporator 104.A wherein lateral line 111 according to
Secondary high temperature side and evaporator 104 by water-water heat exchanger 105, once water inlet initially enter the high temperature of water-water heat exchanger 105
Side, the secondary water inlet of the low temperature side side for heat release heating water-water heat exchanger 105 of now once intaking, once intakes and is changed from water-water
Hot device 105 enters outflow after evaporator 104 cools and returns to thermal source after turning into a water outlet after flowing out.Secondary water inlet is divided into two simultaneously
The branch road of connection is the branch road 113 of tie point 112 and second, and wherein tie point 112 passes through absorber 103 and condenser successively
102, the second branch road 113 passes through the low temperature side and generator 101 of water-water heat exchanger 105 successively.I.e. tie point 112 is secondary
Water successively enters in absorber 103 and condenser 102 be heated after flow out heat-exchange unit；The secondary water of second branch road 113 is first
Low temperature side into water-water heat exchanger 105 is heated, and is then entered back into after solution occurs for generator 101 and is flowed out heat-exchange unit.From
The secondary water of the secondary water of the tie point 112 flowed out in condenser 102 and the second branch road 113 flowed out from generator 101
As secondary water outlet to heat supplies such as buildings after mixing.
Embodiment two
Referring to Fig. 2, the heat-exchange unit in the present embodiment includes absorption type heat pump assembly and water-water heat exchanger, wherein absorbing
Formula source pump includes generator 201, condenser 202, absorber 203 and evaporator 204, water-water heat exchanger include the first water-
The water-water heat exchanger 206 of water- to-water heat exchanger 205 and second.
A lateral line 211 in the present embodiment is successively by the first water-water heat exchanger 205, the second water-water heat exchanger
206 and evaporator 204；The high temperature side that the hot water of primary side initially enters the first water-water heat exchanger 205 heats the second branch road 213
In secondary water after flow out the first water-water heat exchanger 205, afterwards into the second water-water heat exchanger 206 high temperature side heat second
Secondary water in branch road 213, then enter back into after evaporator 204 is cooled and return to thermal source as a water outlet.
Secondary lateral line in the present embodiment includes the branch road 213 of tie point 212 and second.Wherein tie point 212 according to
It is secondary to pass through absorber 203 and condenser 202；Secondary water in tie point 212 flows through absorber 203 and condenser 202 successively
Flowed out after being heated.Second branch road 213 passes through the second water-water heat exchanger 206, the first water-water heat exchanger 205 and generator successively
201；The high temperature side that secondary water in second branch road 213 initially enters the second water-water heat exchanger 206 is heated, subsequently into
The high temperature side of one water-water heat exchanger 205 is heated again, and solution occurs into generator 201 afterwards, is flowed from generator 201
Go out.To the secondary water in the second branch road 213 of outflow and the tie point 212 flowed out from condenser 202 from generator 201
In secondary water mixing after outflow heat-exchange unit be used for heat supply.
Embodiment three
Referring to Fig. 3, the heat-exchange unit in the present embodiment includes absorption type heat pump assembly and water-water heat exchanger, wherein absorbing
Formula source pump includes generator 301, condenser 302, absorber 303 and evaporator 304, water-water heat exchanger include the first water-
The water-water heat exchanger 306 of water- to-water heat exchanger 305 and second.
A lateral line 311 in the present embodiment is successively by the first water-water heat exchanger 305, the second water-water heat exchanger
306 and evaporator 304；The high temperature side that the hot water of primary side initially enters the first water-water heat exchanger 305 heats the second branch road 313
In secondary water after flow out the first water-water heat exchanger 305, afterwards into the high temperature side of the second water-water heat exchanger 306, Ran Houzai
After being cooled into evaporator 304 thermal source is returned to as a water outlet.
Secondary lateral line in the present embodiment includes the branch road 313 of tie point 312 and second being arranged in parallel, the second branch road
313 again including the second branch road a 3131 and the second branch road b 3132 that are arranged in parallel.
Wherein tie point 312 passes through absorber 303 and condenser 302 successively；The secondary water of tie point 312 is entered successively
Enter after absorber 303 and condenser 302 are heated and flow out.
The secondary water of second branch road 313 initially enters the second water-water heat exchanger 306, is flowed from the second water-water heat exchanger 306
It is divided into the second branch road a3131 and the second branch road b3132 after going out；Secondary water in wherein the second branch road a3131 flows directly out heat exchange
Unit；Secondary water in second branch road b3132 enters generator after being then heated again into the first water-water heat exchanger 305
301, the secondary water flowed out from generator 301 with mixed from the secondary water in the second branch road a3131 after, again with tie point
It is used for heat supply as secondary water outlet after secondary water mixing in 312.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be defined by claim.
Claims (8)
- A kind of 1. heat-exchange unit, it is characterised in that including absorption type heat pump assembly and water-water heat exchanger, the absorption heat pump Unit is connected with the water-water heat exchanger by connecting line；The connecting line includes a lateral line and secondary lateral line；Lateral line is by the way of sequential concatenation step by step；Lateral line is successively by the water-water heat exchange The evaporator of device and the absorption type heat pump assembly, the hot water of a lateral line successively by the water-water heat exchanger and The heat-exchange unit is flowed out after the evaporator；The secondary lateral line includes tie point parallel with one another and the second branch road；Wherein, the tie point absorber by the absorption type heat pump assembly and the absorption type heat pump assembly successively Condenser；The secondary water of the tie point, which is sequentially entered after the absorber and the condenser are heated, flows out the heat exchange Unit；Second branch road is successively by the low temperature side of the water-water heat exchanger and the generator of the absorption type heat pump assembly； The secondary water of second branch road initially enter water-water heat exchanger low temperature side be heated after flow out the water-water heat exchanger, it The heat-exchange unit is flowed out after being exchanged heat afterwards into the generator.
- 2. heat-exchange unit according to claim 1, it is characterised in that the water-water heat exchanger includes the first water-water heat exchange Device and the second water-water heat exchanger；Lateral line is successively by first water-water heat exchanger, second water-water heat exchanger and described absorption The evaporator of source pump, the hot water of a lateral line successively by first water-water heat exchanger, second water- The heat-exchange unit is flowed out after water- to-water heat exchanger and the evaporator.
- 3. heat-exchange unit according to claim 2, it is characterised in that the secondary lateral line includes parallel with one another first Branch road and the second branch road；Wherein, the tie point absorber by the absorption type heat pump assembly and the absorption type heat pump assembly successively Condenser；The secondary water of the tie point, which is sequentially entered after the absorber and the condenser are heated, flows out the heat exchange Unit；Second branch road passes through low temperature side, the low temperature of first water-water heat exchanger of second water-water heat exchanger successively Side and the generator of the absorption type heat pump assembly；The secondary water of second branch road initially enters second water-water and changed The low temperature side of hot device flows out second water-water heat exchanger after being heated, afterwards into the low temperature of first water-water heat exchanger First water-water heat exchanger is flowed out in side after being heated again, flow out the heat exchanger after being exchanged heat afterwards into the generator Group.
- 4. heat-exchange unit according to claim 2, it is characterised in that the secondary lateral line includes parallel with one another first Branch road and the second branch road, second branch road include the second branch road a and the second branch road b parallel with one another；Wherein, the tie point absorber by the absorption type heat pump assembly and the absorption type heat pump assembly successively Condenser；The secondary water of the tie point, which is sequentially entered after the absorber and the condenser are heated, flows out the heat exchange Unit；The secondary water of the second branch road a flows out the heat exchange after being heated into the low temperature side of second water-water heat exchanger Unit；The second branch road b successively by the low temperature side of second water-water heat exchanger, first water-water heat exchanger it is low Warm side and the generator of the absorption type heat pump assembly；The secondary water of the second branch road b initially enters second water-water The low temperature side of heat exchanger flows out second water-water heat exchanger after being heated, afterwards into the low of first water-water heat exchanger First water-water heat exchanger is flowed out in warm side after being heated again, flow out the heat exchange after being exchanged heat afterwards into the generator Unit.
- 5. heat-exchange unit according to claim 2, it is characterised in that the secondary lateral line includes parallel with one another first Branch road and the second branch road, second branch road include the second branch road a and the second branch road b parallel with one another；Wherein, the tie point absorber by the absorption type heat pump assembly and the absorption type heat pump assembly successively Condenser；The secondary water of the tie point, which is sequentially entered after the absorber and the condenser are heated, flows out the heat exchange Unit；The second branch road a successively by second water-water heat exchanger low temperature side and first water-water heat exchanger it is low Warm side, the secondary water of the second branch road a sequentially enter the low temperature side and first water-water of second water-water heat exchanger The heat-exchange unit is flowed out after the low temperature side of heat exchanger；The second branch road b successively by the low temperature side of second water-water heat exchanger, first water-water heat exchanger it is low Warm side and the generator of the absorption type heat pump assembly；The secondary water of the second branch road b initially enters second water-water The low temperature side of heat exchanger flows out second water-water heat exchanger after being heated, afterwards into the low of first water-water heat exchanger First water-water heat exchanger is flowed out in warm side after being heated again, flow out the heat exchange after being exchanged heat afterwards into the generator Unit.
- 6. the heat-exchange unit according to claim 4 or 5, it is characterised in that the secondary water of the second branch road a and described The heat-exchange unit is flowed out after two branch road b secondary water mixing.
- 7. according to the heat-exchange unit described in claim 1 to 5 any one, it is characterised in that the secondary water of the tie point The heat-exchange unit is flowed out with after the secondary water mixing of second branch road.
- 8. according to the heat-exchange unit described in claim 2 to 5 any one, it is characterised in that the water-water heat exchanger is at least Three；Lateral line is successively by all water-water heat exchangers and the evaporator of the absorption type heat pump assembly；At least one branch road of the secondary lateral line passes through at least one water-water heat exchanger and the absorption type heat pump machine The generator of group；At least one branch road of the secondary lateral line passes through the condenser and generator of the absorption type heat pump assembly.
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| CN201510203097.0A CN104879818B (en) | 2015-04-24 | 2015-04-24 | Heat-exchange unit |
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|---|---|---|---|
| CN201510203097.0A CN104879818B (en) | 2015-04-24 | 2015-04-24 | Heat-exchange unit |
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| CN104879818B true CN104879818B (en) | 2018-03-30 |
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