CN102853576B - Boiling regeneration type heat pump system for heat source tower - Google Patents
Boiling regeneration type heat pump system for heat source tower Download PDFInfo
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- CN102853576B CN102853576B CN201210376402.2A CN201210376402A CN102853576B CN 102853576 B CN102853576 B CN 102853576B CN 201210376402 A CN201210376402 A CN 201210376402A CN 102853576 B CN102853576 B CN 102853576B
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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
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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
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Abstract
The invention discloses a boiling regeneration type heat pump system for a heat source tower. The heat source tower is respectively connected with an adjusting valve I and an adjusting valve II; the adjusting valve I, a solution heat exchanger, a throttling valve I, a boiling type regenerator and a solution pump are sequentially connected; the solution pump is further connected with the solution heat exchanger; the adjusting valve II is connected with a cooling water pump; the cooling water pump is respectively connected with an outdoor change-over valve group and the solution heat exchanger; the boiling type regenerator is connected with an external low-level heat source; the outdoor change-over valve group is respectively connected with the solution heat exchanger, the hot source tower and the outdoor heat exchanger; the outdoor heat exchanger is connected with a four-way reversing valve; the four-way reversing valve is respectively connected with a compressor and a port of an indoor heat exchanger; the port of the indoor heat exchanger is respectively connected with a throttling valve II and an indoor reversing valve group; the throttling valve II is respectively connected with a one-way valve I and a one-way valve II; the one-way valve II is connected with a condenser; the condenser is connected with the one-way valve I and the outdoor heat exchanger; and a bypass valve is respectively connected with the one-way valve II and the condenser.
Description
Technical field
The present invention relates to Refrigeration & Air-Conditioning equipment technical field, especially a kind of boiling regenerative heat source tower heat pump system.
Background technology
Water-cooled handpiece Water Chilling Units is a kind of very general configuration in air-conditioning system, but but can not play a role in the winter time, in order to meet thermic load needs, also need to add special heating system, as be equipped with boiler room or heat exchange station, and increased to a certain extent the initial cost of system, and not energy-conservation.If employing air source heat pump system, do not need to configure special heating system, and system also has higher COP under winter condition again, but it is easily subject to the puzzlement of frosting in winter problem.In recent years, the heat source tower heat pump system that has scholar to propose to utilize heat source tower to absorb heat from air under heating condition in the winter time, and by the application verification in Practical Project its practical value.Heat source tower heat pump system has following some advantage, and the first, thus it can make its freezing point effectively solve lower than 0 ℃ the frosting problem existing in air source heat pump by changing the concentration of circulation solution; The second, heat source tower heat pump summer cooling, Winter heat supply, make water-cooled handpiece Water Chilling Units dual-use, replaced special heating system, has larger saving in initial cost and operating cost; The 3rd, heat source tower heat pump system is easy to implement, in newly-built or reconstruction air-conditioning system, adopts and all has stronger feasibility.But when heat source tower heat pump moves under operating mode in the winter time, because circulation solution moisture absorption meeting makes its concentration, reduce, therefore in order to maintain the running status of system, just need to regenerate to solution.Doctor Wen Xiantai of Southeast China University has proposed a kind of regeneration of waste liquor mode (application number 201010567051.4), adopt regeneration air and the solution of closed cycle to carry out caloic exchange, with evaporimeter, regeneration air lowered the temperature and dehumidify, with the condensation heat heated solution of condenser discharge, the excessive moisture in last solution is discharged with condensed water form.Professor Chen Guangming of Zhejiang University has proposed another regeneration (application number 200910098008.5), utilize the subcooler heated solution of heat pump and contact with the regeneration air of open circulation, finally by regeneration air, the excessive moisture in solution being carried out to system.These two kinds of regenerations have all adopted non-boiling formula regeneration, the inherent defect with non-boiling formula regeneration, ie in solution has larger potential difference while contacting with regeneration air, and thermal regeneration air need to expend more heat, in addition, for the former, evaporimeter also will be lowered the temperature to regeneration air except dehumidifying, and energy consumption is larger; For the latter, utilize subcooler heated solution can reduce heat pump COP, and evaporation latent heat discharge system with regeneration air, for just needing the evaporimeter of thermal source under heating condition for, cause to a certain extent waste.For this reason, be necessary to develop a kind of inherent defect that can overcome non-boiling formula regeneration, to reduce energy consumption, expand low-grade heat source and utilize scope, the energy is carried out the heat source tower heat pump system of cascade utilization simultaneously, the present invention proposes for addressing the above problem.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of boiling regenerative heat source tower heat pump system, makes it have that energy consumption is low, low-grade heat source utilizes the feature that scope is wide.
In order to solve the problems of the technologies described above, the present invention proposes a kind of boiling regenerative heat source tower heat pump system, and its specific implementation, as Fig. 1, comprises heat pump subsystem, heat source tower subsystem and regeneration of waste liquor subsystem; Regeneration of waste liquor subsystem comprises control valve I, solution heat exchanger, choke valve I, boiling type regenerator, solution pump, condenser, condensation water tank and condensate pump; Heat pump subsystem comprises outdoor heat exchanger, four-way change-over valve, compressor, indoor heat exchanger, choke valve II, condenser, check valve I, check valve II and by-passing valve; Heat source tower subsystem comprises heat source tower, control valve II, cooling water pump, outdoor heat exchanger and outdoor conversion valve set; In described heat source tower, be disposed with from top to bottom spray thrower, new wind passage and solution storage chamber, described solution storage is provided with taphole in chamber; In described solution heat exchanger, be provided with concentrated solution passage and weak solution passage, the two ends of described concentrated solution passage are respectively arranged with concentrated solution import and concentrated solution outlet, and the two ends of described weak solution passage are respectively arranged with dilute solution inlet and weak solution outlet; The taphole in described solution storage chamber is divided into two-way, and a road is connected with control valve I, and a road is connected with control valve II; Described control valve I is also connected with the dilute solution inlet of solution heat exchanger, the weak solution outlet of solution heat exchanger is connected with choke valve I, choke valve I is connected with the dilute solution inlet of boiling type regenerator, the concentrated solution outlet of boiling type regenerator is connected with solution pump, and solution pump is connected with the concentrated solution import of solution heat exchanger; Described boiling type regenerator is connected with outside low-grade heat source; Described control valve II is also connected with cooling water pump; Cooling water pump is connected with the concentrated solution outlet of outdoor conversion valve set and solution heat exchanger respectively; Described outdoor conversion valve set is connected with concentrated solution outlet, spray thrower and the outdoor heat exchanger of solution heat exchanger respectively; Described outdoor heat exchanger is connected with four-way change-over valve; Described four-way change-over valve is connected with indoor heat exchanger port with compressor respectively; Described indoor heat exchanger port is connected with choke valve II; Described indoor heat exchanger port is also connected with indoor conversion valve set; Described choke valve II is connected with the inlet of check valve II with the liquid outlet of check valve I respectively; The liquid outlet of described check valve II is connected with the solution inlet port of condenser; The taphole of described condenser is connected with inlet and the outdoor heat exchanger of check valve I respectively; Described by-passing valve is connected with the inlet of check valve II and the taphole of condenser respectively; Above-described heat pump subsystem is coupled by outdoor heat exchanger and heat source tower subsystem, by condenser and regeneration of waste liquor subsystem, is coupled.
As the improvement to boiling regenerative heat source tower heat pump system of the present invention: be provided with stop valve I, stop valve II, stop valve III, stop valve IV in described outdoor conversion valve set, described stop valve I, stop valve II, stop valve III form series loop after being connected successively with stop valve IV, the solution that is provided with outdoor conversion valve set between stop valve II and stop valve III is imported and exported IV, the solution that is provided with outdoor conversion valve set between stop valve I and stop valve IV is imported and exported I, the solution that is provided with outdoor conversion valve set between stop valve I and stop valve II is imported and exported II, and the solution that is provided with outdoor conversion valve set between stop valve III and stop valve IV is imported and exported III, in described indoor conversion valve set, be provided with stop valve I, stop valve II, stop valve III and stop valve IV, described stop valve I, stop valve II, stop valve III form series loop after being connected successively with stop valve IV, the solution that is provided with indoor conversion valve set between stop valve II and stop valve III is imported and exported III, the solution that is provided with indoor conversion valve set between stop valve I and stop valve IV is imported and exported II, the solution that is provided with indoor conversion valve set between stop valve I and stop valve II is imported and exported I, and the solution that is provided with indoor conversion valve set between stop valve III and stop valve IV is imported and exported IV, on described outdoor heat exchanger, be provided with outdoor heat exchanger port I, outdoor heat exchanger port II, outdoor heat exchanger port III and outdoor heat exchanger port IV, on described indoor heat exchanger, be provided with indoor heat exchanger port I, indoor heat exchanger port II, indoor heat exchanger port III and indoor heat exchanger port IV, on described four-way change-over valve, be provided with four-way change-over valve port I, four-way change-over valve port II, four-way change-over valve port III and four-way change-over valve port IV, the solution of described outdoor conversion valve set is imported and exported I and is connected with spray thrower, the solution of described outdoor conversion valve set is imported and exported II and is connected with outdoor heat exchanger port III, the solution of outdoor conversion valve set is imported and exported III and is connected with outdoor heat exchanger port IV, the solution of described outdoor conversion valve set is imported and exported IV and is connected with the concentrated solution outlet of cooling water pump and solution heat exchanger respectively, outdoor heat exchanger port I is connected with four-way change-over valve port I, the exhaust outlet of described compressor is connected with four-way change-over valve port IV, the air entry of compressor is connected with four-way change-over valve port II, four-way change-over valve port III is connected with indoor heat exchanger port I, indoor heat exchanger port II is connected with choke valve II, the inlet of check valve I is connected with taphole and the outdoor heat exchanger port II of condenser respectively, indoor heat exchanger port III is imported and exported II with the solution of indoor conversion valve set and is connected, indoor heat exchanger port IV is imported and exported III with the solution of indoor conversion valve set and is connected, the solution import and export IV that the solution of indoor conversion valve set is imported and exported I and indoor conversion valve set is connected with water inlet with the delivery port of low-grade heat source respectively.
As the further improvement to boiling regenerative heat source tower heat pump system of the present invention: described low-grade heat source is from surface water, underground water, buried pipe heat exchange system, solar water heating system or other waste heat source.
As the further improvement to boiling regenerative heat source tower heat pump system of the present invention: the working medium in heat source tower subsystem can adopt calcium chloride solution or lithium-bromide solution.
This system adopts boiling type regeneration, utilize low-grade heat source to regenerate to circulation solution, and by the coupling of condenser and evaporimeter, have that heat source temperature is less demanding, low-grade heat source utilizes that scope is wide, flexible adjustment, feature that feasibility is strong, be easy to apply.
The present invention compares with existing heat source tower heat pump system, has the following advantages:
1) heat pump subsystem and regeneration of waste liquor subsystem are coupled by condenser, and while having reclaimed regeneration, the latent heat of the water vapour of separating out, has reduced the heat demand to heat source tower by cascaded utilization of energy, and solution hygroscopic capacity is reduced, and have reduced regeneration load.
2) moisture in solution is separated out by inner evaporation mode in boiling type regenerator, than the surface evaporation mode in non-boiling formula regenerator, there is stronger mass transfer effect and needn't rely on raising solution temperature to keep the potential difference between solution and regeneration air, therefore can reduce the requirement to low-grade heat source temperature, expand to a certain extent the scope of utilizing of low-grade heat source.
3) owing to having adopted boiling type regeneration, avoided the heat that in the regeneration of non-boiling formula, heating consumes to regeneration air, therefore, under same regeneration amount, still less, the regeneration efficiency of system is higher for the heat of the low-grade heat source consuming.
Accompanying drawing explanation
Fig. 1 is the system flow chart of boiling regenerative heat source tower heat pump of the present invention;
Fig. 2 is the structural representation of outdoor conversion valve set 19 in Fig. 1;
Fig. 3 is the structural representation of indoor conversion valve set 20 in Fig. 1.
The specific embodiment
Embodiment 1, Fig. 1 have provided a kind of boiling regenerative heat source tower heat pump system; Comprise heat pump subsystem, heat source tower subsystem and regeneration of waste liquor subsystem; Regeneration of waste liquor subsystem comprises that control valve I 2, solution heat exchanger 3, choke valve I 4, boiling type regenerator 5, solution increase pump 6, condenser 10, condensation water tank 11 and condensate pump 12; Heat pump subsystem comprises outdoor heat exchanger 7, four-way change-over valve 14, compressor 15, indoor heat exchanger 16, choke valve II 13, condenser 10, check valve I 18, check valve II 17 and by-passing valve 21; Heat source tower subsystem comprises heat source tower 1, control valve II 8, circulating pump 9, outdoor heat exchanger 7 and outdoor conversion valve set 19.There is coupled relation in above-described three subsystems, heat pump subsystem is coupled by outdoor heat exchanger 7 and heat source tower subsystem, and be coupled by condenser 10 and regeneration of waste liquor subsystem.
In heat source tower 1, be disposed with from top to bottom spray thrower, new wind passage and solution storage chamber, described solution storage is provided with taphole in chamber, in solution heat exchanger 3, be provided with concentrated solution passage and weak solution passage, the two ends of described concentrated solution passage are respectively arranged with concentrated solution import and concentrated solution outlet, and the two ends of described weak solution passage are respectively arranged with dilute solution inlet and weak solution outlet, outdoor conversion valve set 19 comprises stop valve I 191, stop valve II 192, stop valve III 193 and stop valve IV 194, stop valve I 191, stop valve II 192, stop valve III 193 forms series loop after being connected successively with stop valve IV 194, the solution that is provided with outdoor conversion valve set 19 on the passage between stop valve II 192 and stop valve III 193 is imported and exported IV, the solution that is provided with outdoor conversion valve set 19 on the passage between stop valve I 191 and stop valve IV 194 is imported and exported I, the solution that is provided with outdoor conversion valve set 19 on the passage between stop valve I 191 and stop valve II 192 is imported and exported II, the solution that is provided with outdoor conversion valve set 19 on the passage between stop valve III 193 and stop valve IV 194 is imported and exported III.Indoor conversion valve set 20 comprises stop valve I 201, stop valve II 202, stop valve III 203 and stop valve IV 204, stop valve I 201, stop valve II 202, stop valve III 203 forms series loop after being connected successively with stop valve IV 204, the solution that is provided with indoor conversion valve set 20 on the passage between stop valve II 202 and stop valve III 203 is imported and exported III, the solution of the internal conversion valve group 20 of having family on the passage arranging between stop valve I 201 and stop valve IV 204 is imported and exported II, the solution that is provided with indoor conversion valve set 20 on the passage between stop valve I 201 and stop valve II 202 is imported and exported I, the solution that is provided with indoor conversion valve set 20 on the passage between stop valve III 203 and stop valve IV 204 is imported and exported IV.On outdoor heat exchanger 7, be provided with outdoor heat exchanger port I 71, outdoor heat exchanger port II 72, outdoor heat exchanger port III 73 and outdoor heat exchanger port IV 74; On indoor heat exchanger 16, be provided with indoor heat exchanger port I 161, indoor heat exchanger port II 162, indoor heat exchanger port III 163 and indoor heat exchanger port IV 164; On four-way change-over valve 14, be provided with four-way change-over valve port I 141, four-way change-over valve port II 142, four-way change-over valve port III 143 and four-way change-over valve port IV 144; The taphole in solution storage chamber is divided into two-way, and a road is connected with control valve I 2, and a road is connected with control valve II 8; Concrete connection is as follows:
A road wherein: control valve I 2 is connected with the dilute solution inlet of solution heat exchanger 3, the weak solution outlet of solution heat exchanger 3 is connected with choke valve I 4, choke valve I 4 is connected with the dilute solution inlet of boiling type regenerator 5, concentrated solution outlet and the solution of boiling type regenerator 5 increase pump 6 and are connected, and solution increases pump 6 and is connected with the concentrated solution import of solution heat exchanger 3;
An other road: control valve II 8 is connected with circulating pump 9; Circulating pump 9 is imported and exported IV with the concentrated solution outlet of solution heat exchanger 3 and the solution of outdoor conversion valve set 19 respectively and is connected, and the solution of outdoor conversion valve set 19 is imported and exported IV and is connected with the concentrated solution outlet of solution heat exchanger 3.
The solution of outdoor conversion valve set 19 is imported and exported I and is connected with spray thrower.The solution of outdoor conversion valve set 19 is imported and exported II and is connected with outdoor heat exchanger port III 73, the solution of outdoor conversion valve set 19 is imported and exported III and is connected with outdoor heat exchanger port IV 74, outdoor heat exchanger port I 71 is connected with four-way change-over valve port I 141, four-way change-over valve port II 142 forms loop by compressor 15 and four-way change-over valve port IV 144, and (exhaust outlet of compressor 15 is connected with four-way change-over valve port IV 144, the air entry of compressor 15 is connected with four-way change-over valve port II 142), four-way change-over valve port III 143 is connected with indoor heat exchanger port I 161, indoor heat exchanger port II 162 is connected with choke valve II 13, choke valve II 13 is connected with the inlet of check valve II 17 with the liquid outlet of check valve I 18 respectively, the liquid outlet of check valve II 17 is connected with the solution inlet port of condenser 10, the inlet of check valve I 18 is connected with taphole and the outdoor heat exchanger port II 72 of condenser 10 respectively, taphole at check valve II 17 and condenser 10 is connected by by-passing valve 21.
On boiling type regenerator 5, be provided with port I 51 and port II 52, by the port I 51 of boiling type regenerator 5 and the port II 52 of boiling type regenerator 5, can be connected with the import and export of outside low-grade heat source supplying system.Indoor heat exchanger port III 163 is imported and exported II with the solution of indoor conversion valve set 20 and is connected, and the solution of indoor heat exchanger port IV 164 and indoor conversion valve set 20 is imported and exported III and is connected.The solution import and export I that the solution of indoor conversion valve set 20 is imported and exported IV and indoor conversion valve set 20 is connected with delivery port with the water inlet of outside cooling (heat) system respectively.
The above outside low-grade heat source can be from surface water, underground water, buried pipe heat exchange system, solar water heating system or other waste heat source.
When the above heat pump subsystem is worked under heating mode, stop valve V 201 and stop valve VII 203 are closed, stop valve VI 202 and stop valve VIII 204 are opened, from outside heating system hot water backwater out, from indoor heat exchanger port IV 164, enter in indoor heat exchanger 16, from indoor heat exchanger port III 163, flow out, hot water carries out countercurrent flow with cryogen in indoor heat exchanger 16 again.When heat pump subsystem is worked under cooling condition, stop valve V 201 and stop valve VII 203 are opened, stop valve VI 202 and stop valve VIII 204 are closed, from outside cold supply system cold-water return out, from indoor heat exchanger port III 163, enter, from indoor heat exchanger port IV 164, flow out, in indoor heat exchanger 16, carry out countercurrent flow with cryogen.
When described heat source tower subsystem is worked under heating mode, be divided into again two kinds of mode of operations, i.e. general modfel and regeneration mode switch under two kinds of patterns.Under general modfel, control valve II 8 and circulating pump 9 are opened, regeneration of waste liquor subsystem keeps closing simultaneously, along with solution constantly absorbs airborne water vapour and concentration while being reduced to a certain degree in heat source tower, enter regeneration mode, now, control valve II 8 and circulating pump 9 are closed, regeneration of waste liquor subsystem is opened and is carried out regeneration of waste liquor simultaneously, when solution concentration is elevated to a certain degree, is again switched to general modfel.Under heating mode, stop valve I 191 and stop valve III 193 keep closing, stop valve II 192 and stop valve IV 194 stay open, from heat source tower 1 solution out, from outdoor heat exchanger port III 73, enter in outdoor heat exchanger 7, from outdoor heat exchanger port IV 74, flow out, solution carries out countercurrent flow with cryogen in outdoor heat exchanger 7 again.
When described heat source tower subsystem is worked under refrigeration mode, control valve II 8 and circulating pump 9 are opened, and regeneration of waste liquor subsystem keeps closing, and the function of heat source tower 1 is equivalent to common cooling tower.Stop valve I 191 and stop valve III 193 are opened, stop valve II 192 and stop valve IV 194 are closed, from heat source tower 1 (by cooling tower mode operation) cooling water out, from outdoor heat exchanger port IV 74, enter in outdoor heat exchanger 7, from outdoor heat exchanger port III 73, flow out, cooling water carries out countercurrent flow with cryogen in outdoor heat exchanger 7 again.
During regeneration of waste liquor subsystem work, boiling type regenerator 5, condenser 10, condensation water tank 11 are negative pressure operation.Heat source tower subsystem and the working medium of regeneration of waste liquor subsystem under heating mode are calcium chloride solution or lithium-bromide solution, and its freezing point should than winter, more outdoor design environment temperature be low 10 ℃.The working medium of heat source tower subsystem under refrigeration mode is water.
The specific works step of boiling regenerative heat source tower heat pump system of the present invention when reality is used is as follows:
A, under heating mode, be divided into two kinds of mode of operations, i.e. general modfel and regeneration mode switch under two kinds of patterns.Under general modfel, control valve II 8 and circulating pump 9 are opened, regeneration of waste liquor subsystem keeps closing simultaneously, along with solution constantly absorbs airborne water vapour and concentration while being reduced to a certain degree in heat source tower, enter regeneration mode, now, control valve II 8 and circulating pump 9 are closed, regeneration of waste liquor subsystem is opened and is carried out regeneration of waste liquor simultaneously, when solution concentration is elevated to a certain degree, is again switched to general modfel.Under heating mode, heat pump subsystem and heat source tower subsystem remain operation.Heat pump subsystem is by heating endless form operation, in heat source tower subsystem, working medium is calcium chloride solution or lithium-bromide solution, stop valve I 191 and stop valve III 193 are closed, stop valve II 192 and stop valve IV 194 are opened, stop valve V 201 and stop valve VII 203 are closed, and stop valve VI 202 and stop valve VIII 204 are opened.Concrete steps are as follows:
1, regeneration of waste liquor subsystem cyclic process:
1.1, under regeneration mode, regeneration of waste liquor subsystem maintenance work, weak solution flows out from the taphole in solution storage chamber, after control valve I 2, solution heat exchanger 3 (the weak solution passage in solution heat exchanger 3) and choke valve I 4 in inflow boiling type regenerator 5 (when weak solution is during through control valve I 2, being negative pressure by control valve I 2 by pressure decreased);
1.2, by the port I 51 of boiling type regenerator 5, introduce the low-grade heat source that outside low-grade heat source supplying system is derived;
1.3, weak solution absorbs after the heat of low-grade heat source, the part moisture evaporation in weak solution, and weak solution is condensed into concentrated solution; Again by the port II 52 of boiling type regenerator 5, by absorbed the low-grade heat source after heat by weak solution, lead and get back in outside low-grade heat source supplying system;
1.4, concentrated solution flows out from boiling type regenerator 5, and more than solution booster pump I 6 is forced into normal pressure, and enter in solution heat exchanger 3 (the concentrated solution passage in solution heat exchanger 3); Now, the liquid heat exchange in concentrated solution passage and weak solution passage, the heat that is about to concentrated solution in concentrated solution passage is transmitted in the weak solution in weak solution passage;
1.5, from boiling type regenerator 5, the water vapour of evaporation flows to condenser 10, emit condensation latent heat in condenser 10 after, become condensed water and enter storage in condensation water tank 11, condensate pump 12 is controlled by the liquid level of condensation water tank 10, when in condensation water tank 10, the condensed water of storage is too much, extraneous by discharging after condensed water pressurization with regard to open cold condensate pump 12.
2, heat source tower subsystem cyclic process:
2.1 concentrated solutions spray out from the spray thrower of heat source tower 1, when outdoor air passes through new wind passage, carry out caloic exchange with concentrated solution, and concentrated solution temperature is raise, and after concentration thinning (having become weak solution), have fallen in solution storage chamber;
2.2 weak solutions flow out from the taphole in solution storage chamber, if be now general modfel operation, weak solution is through control valve II 8 and circulating pump 9, then by stop valve II 192 by outdoor heat exchanger port III 73 inflow outdoor heat exchangers 7; If be now regeneration operational mode, weak solution concentrates regeneration by regeneration subsystem, concentrated solution flows out in solution heat exchanger 3 (passage of the concentrated solution in solution heat exchanger 3), by stop valve II 192, by outdoor heat exchanger port III 73, flows in outdoor heat exchanger 7;
2.3, concentrated solution is in outdoor heat exchanger 7, and after the heat release of low-temp low-pressure refrigerant vapour, temperature reduces, then flows in spray thrower through stop valve IV 194 by outdoor heat exchanger port IV 74, re-starts step 1 to the circulation of step 2.
3, the cyclic process of heat pump subsystem:
3.1, HTHP refrigerant vapour, from the exhaust outlet of compressor 15 successively after four-way change-over valve port IV 144 and four-way change-over valve port III 143, then flows in indoor heat exchangers 16 by indoor heat exchanger port I 161;
3.2, HTHP refrigerant vapour is emitted condensation heat and is heated outside heating system backwater in indoor heat exchanger 16, becomes high temperature high pressure liquid;
3.3, high temperature high pressure liquid through indoor heat exchanger port II 162 by becoming low-temp low-pressure liquid after choke valve II 13; (according to the character of cryogen, high temperature high pressure liquid is naturally cooled to low-temp low-pressure liquid in indoor heat exchanger port II 162 flows to the process of choke valve II 13, after cold-producing medium throttling, just there will be such effect, be equivalent to step-down and make a small amount of refrigerant liquid evacuator body, the heat of evaporation can only be lowered the temperature to provide by cold-producing medium, so just make cold-producing medium become low-temp low-pressure liquid);
If 3.4 under general operational mode, by-passing valve 21 is opened, now most low-temp low-pressure liquid flow to the taphole of condenser 10 by by-passing valve 21, only has a small amount of low-temp low-pressure liquid condenser 10 of flowing through, two strands of low-temp low-pressure liquid converge at the taphole of condenser 10, after outdoor heat exchanger port II 72 enters the concentrated solution sensible heat of the interior absorption of outdoor heat exchanger 7 from heat source tower 1, vaporize, become low-temp low-pressure gas; If under regeneration operational mode, by-passing valve 21 cuts out, all low-temp low-pressure liquid enters condenser 10 through check valve II 17, absorb the latent heat that water vapour is emitted, part cryogen evaporation by outdoor heat exchanger port II 72 enter the interior absorption of outdoor heat exchanger 7 from the concentrated solution sensible heat of heat source tower 1 after further vaporization, become low-temp low-pressure gas (low-temp low-pressure gas becomes high temperature and high pressure gas after compressor).Low-temp low-pressure gas flows out from outdoor heat exchanger port I 71, then by four-way change-over valve port I 141 and four-way change-over valve port II 142, enters successively the air entry of compressor 15.
B, under refrigeration mode, heat pump subsystem, heat source tower subsystem all keep operation, regeneration of waste liquor subsystem is closed, heat pump subsystem moves by kind of refrigeration cycle mode, heat source tower 1 press cooling tower mode operation, the interior working medium of system is water.Control valve II 8 and circulating pump 9 are opened, and control valve I 2 is closed, and stop valve I 191 and stop valve III 193 are opened, and stop valve II 192 and stop valve IV 194 are closed, and stop valve V 201 and stop valve VII 203 are opened, and stop valve VI 202 and stop valve VIII 204 are closed.Concrete steps are as follows:
1, heat source tower subsystem cyclic process under refrigeration mode:
1.1, water sprays out from the spray thrower of heat source tower 1, when outdoor air passes through new wind passage, carries out caloic exchange with water, and the temperature of water is reduced;
1.2, water flows out from the taphole in solution storage chamber, through control valve II 8 and circulating pump 9, then by after stop valve III 193, through outdoor heat exchanger port IV 74, flows into outdoor heat exchanger 7;
1.3, water is after the interior absorption HTHP of outdoor heat exchanger 7 refrigerant vapour liberated heat, and the temperature of water raises, then comes back in heat source tower 1 and carry out caloic exchange with air.
2, the cyclic process of heat pump subsystem under refrigeration mode:
2.1, HTHP refrigerant vapour flows in outdoor heat exchanger 7 by outdoor heat exchanger port I 71 through four-way change-over valve port IV 144 and four-way change-over valve port I 141 successively from compressor 15 exhaust outlets;
2.2, HTHP refrigerant vapour becomes high temperature high pressure liquid emit condensation heat in outdoor heat exchanger 7 after, more successively by becoming low-temp low-pressure liquid after check valve II 18, choke valve II 13, then enter indoor heat exchanger 16 by indoor heat exchanger port II 162;
2.3, after the sensible heat of the outside cold supply system cold-water return of low-temp low-pressure liquid absorption, vaporize, (the gas is here the low-temp low-pressure gas becoming after the heat absorption of low-temp low-pressure liquid to become low-temp low-pressure gas, it is exactly a phase transition process, temperature is substantially constant), then after indoor heat exchanger port I 161 is successively by four-way change-over valve port III 143 and four-way change-over valve port II 142, from the air entry of compressor 15, enter in compressor 15.
Finally, it is also to be noted that, what more than enumerate is only several specific embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (4)
1. boiling regenerative heat source tower heat pump system; It is characterized in that: comprise heat pump subsystem, heat source tower subsystem and regeneration of waste liquor subsystem;
Regeneration of waste liquor subsystem comprises control valve I (2), solution heat exchanger (3), choke valve I (4), boiling type regenerator (5), solution pump (6), condenser (10), condensation water tank (11) and condensate pump (12);
Heat pump subsystem comprises outdoor heat exchanger (7), four-way change-over valve (14), compressor (15), indoor heat exchanger (16), choke valve II (13), condenser (10), check valve I (18), check valve II (17) and by-passing valve (21);
Heat source tower subsystem comprises heat source tower (1), control valve II (8), cooling water pump (9), outdoor heat exchanger (7) and outdoor conversion valve set (19);
In described heat source tower (1), be disposed with from top to bottom spray thrower, new wind passage and solution storage chamber, described solution storage is provided with taphole in chamber;
In described solution heat exchanger (3), be provided with concentrated solution passage and weak solution passage, the two ends of described concentrated solution passage are respectively arranged with concentrated solution import and concentrated solution outlet, and the two ends of described weak solution passage are respectively arranged with dilute solution inlet and weak solution outlet;
The taphole in described solution storage chamber is divided into two-way, and a road is connected with control valve I (2), and a road is connected with control valve II (8);
Described control valve I (2) is also connected with the dilute solution inlet of solution heat exchanger (3), the weak solution outlet of solution heat exchanger (3) is connected with choke valve I (4), choke valve I (4) is connected with the dilute solution inlet of boiling type regenerator (5), the concentrated solution outlet of boiling type regenerator (5) is connected with solution pump (6), and solution pump (6) is connected with the concentrated solution import of solution heat exchanger (3); Described boiling type regenerator (5) is connected with outside low-grade heat source;
Described control valve II (8) is also connected with cooling water pump (9); Cooling water pump (9) is connected with the concentrated solution outlet of outdoor conversion valve set (19) and solution heat exchanger (3) respectively;
Described outdoor conversion valve set (19) is connected with concentrated solution outlet, spray thrower and the outdoor heat exchanger (7) of solution heat exchanger (3) respectively;
Described outdoor heat exchanger (7) is connected with four-way change-over valve (14);
Described four-way change-over valve (14) is connected with indoor heat exchanger (16) port with compressor (15) respectively;
Described indoor heat exchanger (16) port is connected with choke valve II (13); Described indoor heat exchanger (16) port is also connected with indoor conversion valve set (20);
Described choke valve II (13) is connected with the inlet of check valve II (17) with the liquid outlet of check valve I (18) respectively;
The liquid outlet of described check valve II (17) is connected with the solution inlet port of condenser (10);
The taphole of described condenser (10) is connected with inlet and the outdoor heat exchanger (7) of check valve I (18) respectively;
Described by-passing valve (21) is connected with the taphole of condenser (10) with the inlet of check valve II (17) respectively;
Described heat pump subsystem is by outdoor heat exchanger (7) and the coupling of heat source tower subsystem, and described heat pump subsystem is again by condenser (10) and the coupling of regeneration of waste liquor subsystem.
2. boiling regenerative heat source tower heat pump system according to claim 1; It is characterized in that: in described outdoor conversion valve set (19), be provided with stop valve I (191), stop valve II (192), stop valve III (193), stop valve IV (194);
Described stop valve I (191), stop valve II (192), stop valve III (193) forms series loop after being connected successively with stop valve IV (194), the solution that is provided with outdoor conversion valve set (19) between stop valve II (192) and stop valve III (193) is imported and exported IV, the solution that is provided with outdoor conversion valve set (19) between stop valve I (191) and stop valve IV (194) is imported and exported I, the solution that is provided with outdoor conversion valve set (19) between stop valve I (191) and stop valve II (192) is imported and exported II, the solution that is provided with outdoor conversion valve set (19) between stop valve III (193) and stop valve IV (194) is imported and exported III,
In described indoor conversion valve set (20), be provided with stop valve I (201), stop valve II (202), stop valve III (203) and stop valve IV (204);
Described stop valve I (201), stop valve II (202), stop valve III (203) forms series loop after being connected successively with stop valve IV (204), the solution that is provided with indoor conversion valve set (20) between stop valve II (202) and stop valve III (203) is imported and exported III, the solution that is provided with indoor conversion valve set (20) between stop valve I (201) and stop valve IV (204) is imported and exported II, the solution that is provided with indoor conversion valve set (20) between stop valve I (201) and stop valve II (202) is imported and exported I, the solution that is provided with indoor conversion valve set (20) between stop valve III (203) and stop valve IV (204) is imported and exported IV,
On described outdoor heat exchanger (7), be provided with outdoor heat exchanger port I (71), outdoor heat exchanger port II (72), outdoor heat exchanger port III (73) and outdoor heat exchanger port IV (74);
On described indoor heat exchanger (16), be provided with indoor heat exchanger port I (161), indoor heat exchanger port II (162), indoor heat exchanger port III (163) and indoor heat exchanger port IV (164);
On described four-way change-over valve (14), be provided with four-way change-over valve port I (141), four-way change-over valve port II (142), four-way change-over valve port III (143) and four-way change-over valve port IV (144);
The solution of described outdoor conversion valve set (19) is imported and exported I and is connected with spray thrower, the solution of described outdoor conversion valve set (19) is imported and exported II and is connected with outdoor heat exchanger port III (73), the solution of outdoor conversion valve set (19) is imported and exported III and is connected with outdoor heat exchanger port IV (74), the solution of described outdoor conversion valve set (19) is imported and exported IV and is connected with the concentrated solution outlet of cooling water pump (9) and solution heat exchanger (3) respectively, outdoor heat exchanger port I (71) is connected with four-way change-over valve port I (141), the exhaust outlet of described compressor (15) is connected with four-way change-over valve port IV (144), the air entry of compressor (15) is connected with four-way change-over valve port II (142), four-way change-over valve port III (143) is connected with indoor heat exchanger port I (161), indoor heat exchanger port II (162) is connected with choke valve II (13), the inlet of check valve I (18) is connected with taphole and the outdoor heat exchanger port II (72) of condenser (10) respectively, indoor heat exchanger port III (163) is imported and exported II with the solution of indoor conversion valve set (20) and is connected, indoor heat exchanger port IV (164) is imported and exported III with the solution of indoor conversion valve set (20) and is connected, the solution import and export IV that the solution of indoor conversion valve set (20) is imported and exported I and indoor conversion valve set (20) is connected with water inlet with the delivery port of low-grade heat source respectively.
3. boiling regenerative heat source tower heat pump system according to claim 2; It is characterized in that: described low-grade heat source can be from surface water, underground water, buried pipe heat exchange system, solar water heating system or other waste heat source.
4. boiling regenerative heat source tower heat pump system according to claim 3; It is characterized in that: the working medium in heat source tower subsystem can adopt calcium chloride solution or lithium-bromide solution.
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| CN103047725B (en) * | 2013-01-14 | 2015-09-09 | 浙江理工大学 | The heat source tower heat pump system of double-stage reverse osmosis regeneration |
| CN103807946B (en) * | 2014-01-26 | 2016-06-15 | 浙江理工大学 | The rectification regenerating unit of heat source tower anti-freezing solution |
| CN104235986B (en) * | 2014-09-24 | 2016-09-28 | 浙江理工大学 | A kind of heat source tower heat pump system and method for multiple-effect regeneration |
| CN109059142A (en) * | 2018-06-19 | 2018-12-21 | 浙江理工大学 | Heat source tower multi-online air-conditioning system device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236028A (en) * | 2008-03-04 | 2008-08-06 | 东南大学 | Solar energy-air source energy-saving type solution heat pump device |
| CN201149400Y (en) * | 2008-01-11 | 2008-11-12 | 东南大学 | Air source/water cold-hot pump device based on solution |
| CN201513992U (en) * | 2009-09-11 | 2010-06-23 | 湖南大学 | Water-loop heat pump air-conditioning system based on hot-cold source tower |
| CN203068863U (en) * | 2012-09-29 | 2013-07-17 | 浙江理工大学 | Boiling regeneration type heat source tower heat pump system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201149400Y (en) * | 2008-01-11 | 2008-11-12 | 东南大学 | Air source/water cold-hot pump device based on solution |
| CN101236028A (en) * | 2008-03-04 | 2008-08-06 | 东南大学 | Solar energy-air source energy-saving type solution heat pump device |
| CN201513992U (en) * | 2009-09-11 | 2010-06-23 | 湖南大学 | Water-loop heat pump air-conditioning system based on hot-cold source tower |
| CN203068863U (en) * | 2012-09-29 | 2013-07-17 | 浙江理工大学 | Boiling regeneration type heat source tower heat pump system |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2006-308251A 2006.11.09 * |
| 基于热源塔的热泵系统构建与试验;梁彩华、文先太、张小松;《化工学报》;20101231;第61卷(第S2期);全文 * |
| 梁彩华、文先太、张小松.基于热源塔的热泵系统构建与试验.《化工学报》.2010,第61卷(第S2期), * |
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