CN104390300A - Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter - Google Patents
Heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter Download PDFInfo
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- CN104390300A CN104390300A CN201410674184.XA CN201410674184A CN104390300A CN 104390300 A CN104390300 A CN 104390300A CN 201410674184 A CN201410674184 A CN 201410674184A CN 104390300 A CN104390300 A CN 104390300A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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Abstract
The invention discloses a heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter. The heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter comprises a regeneration and refrigerating loop, a heat source loop, a cooling loop and a vacuum loop. According to the heat source tower heat pump solution regeneration device achieving cooling in summer and solution regeneration in winter, efficient absorption refrigeration can be achieved in summer and efficient solution regeneration can be achieved in winter through heat discharged from refrigeration of refrigerant of a superheat section of a heat pump system or renewable energy source solar energy based on vacuum low voltage, efficient utilization of the renewable energy source solar energy or waste heat is achieved, the solution regeneration efficiency in winter and the refrigeration efficiency in summer of the heat source tower heat pump system are improved, and winter and summer comprehensive efficient utilization of the system is achieved.
Description
Technical field
The invention belongs to refrigerated air-conditioning system Design and manufacture field, relate to a kind of Winter-summer dual purpose that realizes and realize solution highly efficient regeneration and realize the heat source tower heat pump regenerative device of solution of high-efficiency absorption refrigeration summer winter.
Background technology
Heat source tower heat pump is a kind of novel building cold and heat source system of Winter-summer dual purpose, and when cooling in summer, heat source tower does conventional chilling tower and uses, and makes handpiece Water Chilling Units have higher COP.When heating in the winter time, in heat source tower, carry out caloic exchange with air by solution, from air, absorb the low level heat energy of heat as heat source tower heat pump unit.Relatively and air source heat pump, heat source tower heat pump not only has higher operational efficiency in summer, and runs in the winter time and avoid frosting problem.Relative to earth source heat pump, heat source tower heat pump has use flexibly, not by advantages such as geographical conditions restrictions, has broad application prospects.
Heat source tower heat pump in the winter time heating operation time, solution and air carry out heat and mass in heat source tower, when water vapor in air partial pressure is greater than solution surface steam partial pressure, steam in air will enter into solution, make the concentration of solution thinning, the freezing point of solution rises, and in order to ensure the safe and reliable operation of system, needs to carry out concentrating regenerative to thinning solution.Solution highly efficient regeneration how to heat source tower heat pump, and the efficiency utilization realizing regeneration thermal source, to raising heat source tower heat pump systematic function, ensure that security of system reliability service is significant.Heat source tower heat pump is when cooling in summer runs simultaneously, because the medium worked in heat source tower is water, does not have regeneration requirements, causes the regenerating unit of heat source tower heat pump to occur when summer idle, there is the problem that utilization rate of equipment and installations is not high.
Therefore, how to solve the high efficiency of solution reclaiming process and the efficiency utilization of reactivation heat, and solve the problem that regenerative device of solution leaves unused in summer simultaneously, design one and can ensure heat source tower heat pump system stability reliability service in the winter time, and realize solution highly efficient regeneration, can leave unused and cause the new device of the wasting of resources by avoiding device in summer simultaneously, become the technical barrier that those skilled in the art are in the urgent need to address.
Summary of the invention
technical problem:the object of this invention is to provide a kind of high efficient and reliable operation that can ensure heat source tower heat pump system, realize the highly efficient regeneration of heat source tower heat pump solution winter, ensure heat source tower heat pump reliable and stable operation in the winter time, summer is run as absorption refrigeration unit, the efficiency of raising system, realize dual-use realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution.
technical scheme:of the present invention realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, comprise regeneration/refrigerating circuit, heat source loop, cooling circuit, vacuum loop: regeneration/refrigerating circuit comprises evaporimeter, condenser, condensate water heat exchanger, concentrated solution absorber, regenerator, solution pool, first magnetic valve, first electric expansion valve, second magnetic valve, first solution pump, check valve, second electric expansion valve, 7th magnetic valve, second solution pump, tapping valve and relevant connection pipeline thereof, described evaporimeter is also the component parts of heat source loop simultaneously, condenser is also the component parts of cooling circuit simultaneously, condensate water heat exchanger, concentrated solution absorber, second electric expansion valve is also the component parts of vacuum loop simultaneously,
In described regeneration/refrigerating circuit, evaporimeter first input end is connected with regenerator first output, evaporimeter first output is connected with condenser first input end, condenser first output is connected with the entrance of the second electric expansion valve, the outlet of the second electric expansion valve is connected with condensate water heat exchanger first input end, condensate water heat exchanger first output is connected with air by tapping valve, condensate water heat exchanger second input is in order to external freezing water source, for this device chilled water inlet, condensate water heat exchanger second output is this device chilled water outlet, condensate water heat exchanger the 3rd output is connected with concentrated solution absorber second input, evaporimeter the 3rd output is connected with regenerator second input, regenerator second output is connected with concentrated solution absorber first input end by the first electric expansion valve, and concentrated solution absorber first output is connected with solution pool first input end by the second magnetic valve, solution pool first output is connected with the entrance of the first solution pump, and the first solution delivery side of pump is connected with the entrance of check valve, concentrated solution absorber second output is connected with the second solution pump entrance, second solution delivery side of pump is connected with regenerator first input end by the 7th magnetic valve, condenser second output is divided into two-way, first magnetic valve of leading up to is connected with described regenerator first input end, and the outlet of another road and check valve converges rear as this device weak solution/coolant outlet,
Described heat source loop comprises evaporimeter, solar thermal collector, superheat section heat exchanger, heat-exchanger pump, the 5th magnetic valve, the 6th magnetic valve and relevant connection pipeline thereof, in described heat source loop, evaporimeter second output is connected with the entrance of heat-exchanger pump, hot water delivery side of pump divides two-way, one tunnel is connected with superheat section heat exchanger first input end, another road is connected with solar thermal collector input, superheat section heat exchanger first output is connected with evaporimeter second input by the 5th magnetic valve, solar thermal collector output is also connected with evaporimeter second input by the 6th magnetic valve, superheat section heat exchanger second input is in order to be connected with the compressor outlet of this device outside, superheat section heat exchanger second output is connected in order to the entrance of the condenser with this device outside,
Described cooling circuit comprises condenser, the 4th magnetic valve and relevant connection pipeline thereof; In described cooling circuit, condenser second input is connected with the weak solution source/cooling water source of this device outside by the 4th magnetic valve, condensation second output divides two-way, one tunnel is connected with the entrance of the first magnetic valve in regeneration/refrigerating circuit, and the outlet of a road and check valve converges rear weak solution/coolant outlet as this device;
Described vacuum loop comprises condensate water heat exchanger, the second electric expansion valve, the 3rd magnetic valve, vavuum pump, concentrated solution absorber and relevant connection pipeline thereof; In described vacuum loop, condensate water heat exchanger first input end is connected with the output of the second electric expansion valve, condensate water heat exchanger the 3rd output is divided into two-way, one tunnel is connected with concentrated solution tourie second input, the 3rd magnetic valve of separately leading up to is connected with air, also be connected with the entrance of vavuum pump, described vacuum delivery side of pump is connected with air simultaneously.
In the present invention, this device runs based on low-voltage vacuum, the thermal source of lower temperature can be utilized winter to realize heat source tower heat pump regeneration of waste liquor and obtain high regeneration of waste liquor efficiency, absorption refrigeration can be realized at summer operation, supply cold, realize a machine Winter-summer dual purpose, achieve the multi-functional of device and improve device service efficiency.
In the present invention, this device is when solar energy can utilize, and the 5th magnetic valve is in closed condition, and the 6th magnetic valve is in opening, and the solar energy adopting solar thermal collector to gather is as the driving heat source of regeneration of waste liquor or absorption refrigeration; When solar energy can not utilize, 5th magnetic valve is in opening, 6th magnetic valve is in closed condition, utilize superheated refrigerant cooling liberated heat in superheat section heat exchanger, as the driving heat source of plant running, thus achieve the efficiency utilization of Summer and winter solar energy, utilize superheat section refrigerant cools liberated heat to solve the discontinuous problem of solar energy simultaneously.
In the present invention, the weak solution part that condenser second output in regeneration/refrigerating circuit flows out enters evaporimeter through the first magnetic valve and regenerator, utilize weak solution temperature after condenser heat absorption to raise and enter evaporimeter again, decrease and add heat needed for the weak solution that enters and regenerate in evaporimeter, thus improve system effectiveness.
Heat source tower heat pump is heating operation in the winter time, when water vapor in air partial pressure is greater than the steam partial pressure of solution surface in heat source tower, steam in air will enter into solution, make solution concentration thinning, freezing point rises, in order to ensure the reliable and stable operation of heat source tower heat pump device, needing to regenerate solution, can apparatus of the present invention be run.
The low temperature weak solution entered from weak solution/cooling water inlet that this device connects outside enters condenser through the 4th magnetic valve, steam heat exchange in weak solution and condenser, after weak solution absorbs thermal temperature rising, flow out from condenser second output, the weak solution flowed out from condenser is divided into two parts, a part is directly from device weak solution/coolant outlet bleeder, a part enters regenerator (now the 7th closed electromagnetic valve) by the first magnetic valve in addition, flow out the high temperature concentrated solution heat exchange entering regenerator wherein with after regenerating from evaporimeter, flow out from regenerator after weak solution temperature raises and enter evaporimeter, weak solution is heated further by hot water in evaporimeter, temperature is increased to solution boiling temperature, and (pressure now in evaporimeter is vacuum low-pressure, the boiling point of solution is lower) after, solution seethes with excitement, the steam produced enters condenser, steam is condensed into condensate water within the condenser, condensate water flows out condenser from condenser first output, condensate water heat exchanger (winter operation is entered through the second electric expansion valve (now the second electric expansion valve standard-sized sheet), condensate water heat exchanger plays liquid storage effect), now condensate water heat exchanger second input no liquid flows into.Simultaneously, solution in evaporimeter, because of the explosive evaporation of wherein water, the concentration of surplus solution will improve, realize regeneration of waste liquor, concentrated solution flows out from evaporimeter the 3rd output and enters regenerator, carries out heat exchange wherein, temperature flows out regenerator after reducing, after the first electric expansion valve (now the first electric expansion valve standard-sized sheet), enter concentrated solution absorber (now the second closed electromagnetic valve).When the condensate water in condensate water heat exchanger is filled, close the first electric expansion valve, second electric expansion valve, open the second magnetic valve, 3rd magnetic valve and tapping valve, condensate water now in condensate water heat exchanger will through tapping valve bleeder, concentrated solution in concentrated solution absorber also will enter solution pool through the second magnetic valve, when the concentrated solution in the condensate water in condensate water heat exchanger and concentrated solution absorber is all emptying, close the second magnetic valve, 3rd magnetic valve and tapping valve, vavuum pump will be opened, to condensate water heat exchanger, concentrated solution absorber and connecting pipe thereof are found time, by when wherein pressure is extracted into below desired value, close vavuum pump, open the first electric expansion valve, second electric expansion valve, condensate water and the concentrated solution after regenerating continue to flow into condensate water heat exchanger and concentrated solution absorber respectively, after the two is filled, again discharge, find time, circulation like this.When the liquid level in solution pool is higher than setting value, first solution pump start by solution pool solution suck pressurization after through check valve from device weak solution/coolant outlet bleeder.In heat source loop, after being sucked pressurization from the hot water of evaporimeter outflow by heat-exchanger pump, flow out from heat-exchanger pump, when solar energy can utilize, 6th magnetic valve is opened, 5th closed electromagnetic valve, the hot water flowed out from heat-exchanger pump enters solar thermal collector, hot water absorbs solar heat wherein, and temperature raises, and the hot water flowed out from solar thermal collector enters evaporimeter from evaporimeter second input after the 6th magnetic valve, hot water wherein with solution heat exchange, temperature flows out evaporimeter after reducing, and is again sucked by heat-exchanger pump, so circulates; When solar energy can not utilize, 6th closed electromagnetic valve, 5th magnetic valve is opened, from heat-exchanger pump flow out hot water enter superheat section heat exchanger, hot water wherein with refrigerant heat exchanger, temperature raises, from superheat section heat exchanger flow out hot water after the 5th magnetic valve, enter evaporimeter from evaporimeter second input, hot water wherein with solution heat exchange, temperature reduce after flow out evaporimeter, again sucked by heat-exchanger pump, so circulate.
Heat source tower heat pump is when cooling in summer runs, and heat source tower uses as cooling tower, and the condensation heat of heat pump is entered atmospheric environment.Working media now in heat source tower is water, there is not regeneration issues.Apparatus of the present invention then can be utilized to realize the cooling function of absorption refrigeration unit in summer.
During this device summer operation, solution in evaporimeter is seethed with excitement by after hot water heating, the steam produced enters condenser, steam is condensed within the condenser, condensate water flows out from condenser first output after the second electric expansion valve throttling, enters condensate water heat exchanger (now tapping valve closedown), the chilled water heat exchange that condensate water enters with the chilled water inlet connecing outside from device wherein, condensate water evaporation endothermic, produce steam, after chilled water releases thermal temperature reduction in condensate water heat exchanger simultaneously, from device chilled water outlet bleeder, implement device cooling, the steam produced in condensate water heat exchanger flows out from condensate water heat exchanger the 3rd output, enter concentrated solution absorber, absorbed by concentrated solution wherein, after concentrated solution absorbs steam, concentration is thinning, solution flows out from concentrated solution absorber second output and is entered regenerator (now the first closed electromagnetic valve) by after the second solution pump suction pressurization through the 7th magnetic valve, solution carries out heat exchange with the concentrated solution being flowed into regenerator by evaporimeter in regenerator, flow out from regenerator after solution temperature raises and enter evaporimeter, solution in evaporimeter by after ebuillition of heated, because of moisture evaporation, the concentration of solution improves, flow out from evaporimeter the 3rd output after solution thickens and enter regenerator, heat exchange in regenerator, after temperature reduces, concentrated solution absorber is entered after the first electric expansion valve throttling, again absorb steam, become weak solution, circulation like this.The remainder of now regeneration/refrigerating circuit no longer works.
In heat source loop, after being sucked pressurization from the hot water of evaporimeter outflow by heat-exchanger pump, flow out from heat-exchanger pump, when solar energy can utilize, 6th magnetic valve is opened, 5th closed electromagnetic valve, the hot water flowed out from heat-exchanger pump will enter solar thermal collector, hot water absorbs solar heat wherein, and temperature raises, and the hot water flowed out from solar thermal collector enters evaporimeter from evaporimeter second input after the 6th magnetic valve, hot water wherein with solution heat exchange, temperature flows out evaporimeter after reducing, and is again sucked by heat-exchanger pump, so circulates; When solar energy can not utilize, 6th closed electromagnetic valve, 5th magnetic valve is opened, from heat-exchanger pump flow out hot water will enter superheat section heat exchanger, hot water wherein with refrigerant heat exchanger, temperature raises, from superheat section heat exchanger flow out hot water after the 5th magnetic valve, enter evaporimeter from evaporimeter second input, hot water wherein with solution heat exchange, temperature reduce after flow out evaporimeter, again sucked by heat-exchanger pump, so circulate.
In cooling circuit, cooling water connects after outside weak solution/cooling water inlet enters from device and enters condenser through the 4th magnetic valve, and cooling water absorbs heat wherein, and temperature flows out condenser, directly from device weak solution/coolant outlet bleeder after raising.
beneficial effect:the present invention compared with prior art, has the following advantages:
1, the present invention realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, run based on low-voltage vacuum, the thermal source of lower temperature can be utilized in the winter time to realize heat source tower heat pump regeneration of waste liquor and obtain high regeneration of waste liquor efficiency, absorption refrigeration can be realized in summer, supply cold, realize a machine Winter-summer dual purpose, achieve the multi-functional of device and improve device service efficiency.
2, the present invention realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, making full use of and solving the discontinuous problem of solar energy of solar energy can be realized.When solar energy can utilize, the solar energy that the present invention can adopt solar thermal collector to gather is as the driving heat source of regeneration of waste liquor or absorption refrigeration, when solar energy can not utilize, can utilize heat pump from compressor outlet out superheated refrigerant cooling liberated heat, as the driving heat source of plant running, thus the efficiency utilization achieved at Summer and winter solar energy, utilize superheat section refrigerant cools liberated heat to solve the discontinuous problem of solar energy simultaneously.
3, summer air-conditioning system loading increases along with intensity of solar radiation and increases, the present invention realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, Driven by Solar Energy refrigeration can be realized summer, intensity of solar radiation is larger, and its refrigerating capacity is stronger, just in time well mates with solar property, thus the whole installed capacity of air-conditioning system can be reduced, reduce initial cost, improve utilization rate of equipment and installations, realize whole air-conditioning system energy-efficient.
Accompanying drawing explanation
Fig. 1 be the present invention realize summer cooling and winter regeneration of waste liquor the schematic diagram of heat source tower heat pump regenerative device of solution.
Have in figure: evaporimeter 1; Evaporimeter first input end 1a; Evaporimeter first output 1b; Evaporimeter second input 1c; Evaporimeter second output 1d; Evaporimeter the 3rd output 1e; Condenser 2; Condenser first input end 2a; Condenser first output 2b; Condenser second input 2c; Condenser second output 2d; Condensate water heat exchanger 3; Condensate water heat exchanger first input end 3a; Condensate water heat exchanger first output 3b; Condensate water heat exchanger second input 3c; Condensate water heat exchanger second output 3d; Condensate water heat exchanger the 3rd output 3e; Concentrated solution absorber 4; Concentrated solution absorber first input end 4a; Concentrated solution absorber first output 4b; Concentrated solution absorber second input 4c; Concentrated solution absorber second output 4d; Regenerator 5; Regenerator first input end 5a; Regenerator first output 5b; Regenerator second input 5c; Regenerator second output 5d; Solution pool 6; Solution pool first input end 6a; Solution pool first output 6b; Solar thermal collector 7; Solar thermal collector input 7a; Solar thermal collector output 7b; Superheat section heat exchanger 8; Superheat section heat exchanger first input end 8a; Superheat section heat exchanger first output 8b; Superheat section heat exchanger second input 8c; Superheat section heat exchanger second output 8d; First magnetic valve 9; First electric expansion valve 10; Second magnetic valve 11; First solution pump 12; Check valve 13; Second electric expansion valve 14; 3rd magnetic valve 15; Vavuum pump 16; 4th magnetic valve 17; Heat-exchanger pump 18; 5th magnetic valve 19; 6th magnetic valve 20; 7th magnetic valve 21; Second solution pump 22; Tapping valve 23.
Detailed description of the invention
The present invention is further illustrated below in conjunction with Figure of description and specific embodiment.
Of the present invention realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, comprise regeneration/refrigerating circuit, heat source loop, cooling circuit, vacuum loop.In concrete method of attachment regeneration/refrigerating circuit, evaporimeter first input end 1a is connected with regenerator first output 5b, evaporimeter first output 1b is connected with condenser first input end 2a, condenser first output 2b is connected with the entrance of the second electric expansion valve 14, the outlet of the second electric expansion valve 14 is connected with condensate water heat exchanger first input end 3a, condensate water heat exchanger first output 3b is connected with air by tapping valve 23, condensate water heat exchanger second input 3c is in order to external freezing water source, for this device chilled water inlet, condensate water heat exchanger second output 3d is this device chilled water outlet, condensate water heat exchanger the 3rd output 3e is connected with concentrated solution absorber second input 4c, evaporimeter the 3rd output 1e is connected with regenerator second input 5c, regenerator second output 5d is connected with concentrated solution absorber first input end 4a by the first electric expansion valve 10, and concentrated solution absorber first output 4b is connected with solution pool first input end 6a by the second magnetic valve 11, solution pool first output 6b is connected with the entrance of the first solution pump 12, the outlet of the first solution pump 12 is connected with the entrance of check valve 13, concentrated solution absorber second output 4d is connected with the second solution pump 22 entrance, the outlet of the second solution pump 22 is connected with regenerator first input end 5a by the 7th magnetic valve 21, condenser second output 2d is divided into two-way, first magnetic valve 9 of leading up to is connected with described regenerator first input end 5a, and the outlet of another road and check valve 13 converges rear as this device weak solution/coolant outlet,
In heat source loop, evaporimeter second output 1d is connected with the entrance of heat-exchanger pump 18, the outlet of heat-exchanger pump 18 divides two-way, one tunnel is connected with superheat section heat exchanger first input end 8a, another road is connected with solar thermal collector input 7a, superheat section heat exchanger first output 8b is connected with evaporimeter second input 1c by the 5th magnetic valve 19, solar thermal collector output 7b is also connected with evaporimeter second input 1c by the 6th magnetic valve 20, superheat section heat exchanger second input 8c is in order to be connected with the compressor outlet of this device outside, superheat section heat exchanger second output 8d is in order to be connected with the condenser inlet that this device outside connects,
In cooling circuit, condenser second input 2c is connected by the weak solution source/cooling water source of the 4th magnetic valve 17 with the outside flowing into this device, condensation second output 2d divide two-way, one tunnel is connected with the entrance of the first magnetic valve 9 in regeneration/refrigerating circuit, a road with converge rear as this device weak solution/coolant outlet with the outlet of check valve 13;
In described vacuum loop, condensate water heat exchanger first input end 3a is connected with the outlet of the second electric expansion valve 14, condensate water heat exchanger the 3rd output 3e is divided into two-way, one tunnel is connected with concentrated solution tourie second input 4c, the 3rd magnetic valve 15 of separately leading up to is connected with air, also be connected with the entrance of vavuum pump 16, the outlet of described vavuum pump 16 is connected with air simultaneously.
When this device winter operation carries out regeneration of waste liquor, the low temperature weak solution entered from weak solution/cooling water inlet that device connects outside enters condenser 2 through the 4th magnetic valve 17, steam heat exchange in weak solution and condenser 2, after weak solution absorbs thermal temperature rising, flow out from condenser second output 2d, the weak solution flowed out from condenser 2 is divided into two parts, a part is directly from device weak solution/coolant outlet bleeder, in addition a part by the first magnetic valve 9 enter regenerator 5(now the 7th magnetic valve 21 close), flow out the high temperature concentrated solution heat exchange entering regenerator 5 wherein with after regenerating from evaporimeter 1, flow out from regenerator 5 after weak solution temperature raises and enter evaporimeter 1, weak solution is heated further by hot water in evaporimeter 1, temperature is increased to solution boiling temperature, and (pressure now in evaporimeter 1 is vacuum low-pressure, the boiling point of solution is lower) after, solution seethes with excitement, the steam produced enters condenser 2, steam is condensed into condensate water in condenser 2, condensate water flows out condenser 2 from condenser first output 2b, through the second electric expansion valve 14(now the second electric expansion valve 14 standard-sized sheet) enter condensate water heat exchanger 3(winter operation, condensate water heat exchanger 3 plays liquid storage effect), now condensate water heat exchanger second input 3c no liquid flows into.Simultaneously, solution in evaporimeter 1, because of the explosive evaporation of wherein water, the concentration of surplus solution will improve, realize regeneration of waste liquor, concentrated solution flows out from evaporimeter the 3rd output 1e and enters regenerator 5, carries out heat exchange wherein, temperature reduce after flow out regenerator 5, through the first electric expansion valve 10(now the first electric expansion valve 10 standard-sized sheet) after enter concentrated solution absorber 4(now the second magnetic valve 11 close).When the condensate water in condensate water heat exchanger 3 is filled, close the first electric expansion valve 10, second electric expansion valve 14, open the second magnetic valve 11, 3rd magnetic valve 15 and tapping valve 23, condensate water now in condensate water heat exchanger 3 will through tapping valve 23 bleeder, concentrated solution in concentrated solution absorber 4 also will enter solution pool 6 through the second magnetic valve 11, when the concentrated solution in the condensate water in condensate water heat exchanger 3 and concentrated solution absorber 4 is all emptying, close the second magnetic valve 11, 3rd magnetic valve 15 and tapping valve 23, vavuum pump 16 will be opened, to condensate water heat exchanger 3, concentrated solution absorber 4 and connecting pipe thereof are found time, by when wherein pressure is extracted into below desired value, close vavuum pump 16, open the first electric expansion valve 10, second electric expansion valve 14, condensate water and the concentrated solution after regenerating continue to flow into condensate water heat exchanger 3 and concentrated solution absorber 4 respectively, after the two is filled, again discharge, find time, circulation like this.When the liquid level in solution pool 6 is higher than setting value, the first solution pump 12 start by solution pool 6 solution suck pressurization after through check valve 13 from device weak solution/coolant outlet bleeder.In heat source loop, after being sucked pressurization from the hot water of evaporimeter 1 outflow by heat-exchanger pump 18, flow out from heat-exchanger pump 18, when solar energy can utilize, 6th magnetic valve 20 is opened, 5th magnetic valve 19 cuts out, the hot water flowed out from heat-exchanger pump 18 enters solar thermal collector 7, hot water absorbs solar heat wherein, and temperature raises, and the hot water flowed out from solar thermal collector 7 enters evaporimeter 1 from evaporimeter second input 1c after the 6th magnetic valve 20, hot water wherein with solution heat exchange, flow out evaporimeter 1 after temperature reduces, again sucked by heat-exchanger pump 18, so circulate; When solar energy can not utilize, 6th magnetic valve 20 cuts out, 5th magnetic valve 19 is opened, from heat-exchanger pump 18 flow out hot water enter superheat section heat exchanger 8, hot water wherein with refrigerant heat exchanger, temperature raises, from superheat section heat exchanger 8 flow out hot water after the 5th magnetic valve 19, enter evaporimeter 1 from evaporimeter second input 1c, hot water wherein with solution heat exchange, temperature reduce after flow out evaporimeter 1, again sucked by heat-exchanger pump 18, so circulate.
During the work of this device cooling in summer, solution in evaporimeter 1 is seethed with excitement by after hot water heating, the steam produced enters condenser 2, steam is condensed in condenser 2, condensate water from condenser first output 2b flow out enter after the second electric expansion valve 14 throttling condensate water heat exchanger 3(now tapping valve 23 close), the chilled water heat exchange that condensate water enters with the chilled water inlet connecing outside from device wherein, condensate water evaporation endothermic, produce steam, after chilled water releases thermal temperature reduction in condensate water heat exchanger 3 simultaneously, from device chilled water outlet bleeder, implement device cooling, the steam produced in condensate water heat exchanger 3 flows out from condensate water heat exchanger the 3rd output 3e, enter concentrated solution absorber 4, absorbed by concentrated solution wherein, after concentrated solution absorbs steam, concentration is thinning, solution from concentrated solution absorber second output 4d flow out sucked pressurization by the second solution pump 22 after through the 7th magnetic valve 21 enter regenerator 5(now the first magnetic valve 9 close), solution carries out heat exchange with the concentrated solution being flowed into regenerator 5 by evaporimeter 1 in regenerator 5, flow out from regenerator 5 after solution temperature raises and enter evaporimeter 1, solution in evaporimeter 1 by ebuillition of heated after, because of moisture evaporation, the concentration of solution improves, flow out from evaporimeter the 3rd output 1e after solution thickens and enter regenerator 5, heat exchange in regenerator 5, after temperature reduces, concentrated solution absorber 4 is entered after the first electric expansion valve 10 throttling, again absorb steam, become weak solution, circulation like this.The remainder of now regeneration/refrigerating circuit no longer works.
In heat source loop, after being sucked pressurization from the hot water of evaporimeter 1 outflow by heat-exchanger pump 18, flow out from heat-exchanger pump 18, when solar energy can utilize, 6th magnetic valve 20 is opened, 5th magnetic valve 19 cuts out, the hot water flowed out from heat-exchanger pump 18 will enter solar thermal collector 7, hot water absorbs solar heat wherein, temperature raises, the hot water flowed out from solar thermal collector 7 enters evaporimeter 1 from evaporimeter second input 1c after the 6th magnetic valve 20, hot water wherein with solution heat exchange, evaporimeter 1 is flowed out after temperature reduces, again sucked by heat-exchanger pump 18, circulation like this, when solar energy can not utilize, 6th magnetic valve 20 cuts out, 5th magnetic valve 19 is opened, from heat-exchanger pump 18 flow out hot water will enter superheat section heat exchanger 8, hot water wherein with refrigerant heat exchanger, temperature raises, from superheat section heat exchanger 8 flow out hot water after the 5th magnetic valve 19, enter evaporimeter 1 from evaporimeter second input 1c, hot water wherein with solution heat exchange, temperature reduce after flow out evaporimeter 1, again sucked by heat-exchanger pump 18, so circulate.
In cooling circuit, cooling water connects after outside weak solution/cooling water inlet enters from device and enters condenser 2 through the 4th magnetic valve 17, and cooling water absorbs heat wherein, flows out condenser 2, directly from device weak solution/coolant outlet bleeder after temperature raises.
Above-described embodiment is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention; some improvement and equivalent replacement can also be made; these improve the claims in the present invention and are equal to the technical scheme after replacing, and all fall into protection scope of the present invention.
Claims (4)
1. realize summer cooling and winter regeneration of waste liquor a heat source tower heat pump regenerative device of solution, it is characterized in that, this device comprises regeneration/refrigerating circuit, heat source loop, cooling circuit, vacuum loop:
Described regeneration/refrigerating circuit comprises evaporimeter (1), condenser (2), condensate water heat exchanger (3), concentrated solution absorber (4), regenerator (5), solution pool (6), first magnetic valve (9), first electric expansion valve (10), second magnetic valve (11), first solution pump (12), check valve (13), second electric expansion valve (14), 7th magnetic valve (21), second solution pump (22), tapping valve (23) and relevant connection pipeline thereof, described evaporimeter (1) is also the component parts of heat source loop simultaneously, condenser (2) is also the component parts of cooling circuit simultaneously, condensate water heat exchanger (3), concentrated solution absorber (4), second electric expansion valve (14) is also the component parts of vacuum loop simultaneously,
In described regeneration/refrigerating circuit, evaporimeter first input end (1a) is connected with regenerator first output (5b), evaporimeter first output (1b) is connected with condenser first input end (2a), condenser first output (2b) is connected with the entrance of the second electric expansion valve (14), the outlet of the second electric expansion valve (14) is connected with condensate water heat exchanger first input end (3a), condensate water heat exchanger first output (3b) is connected with air by tapping valve (23), condensate water heat exchanger second input (3c) is in order to external freezing water source, for this device chilled water inlet, condensate water heat exchanger second output (3d) is this device chilled water outlet, condensate water heat exchanger the 3rd output (3e) is connected with concentrated solution absorber second input (4c), evaporimeter the 3rd output (1e) is connected with regenerator second input (5c), regenerator second output (5d) is connected with concentrated solution absorber first input end (4a) by the second electric expansion valve (10), concentrated solution absorber first output (4b) is connected with solution pool first input end (6a) by the second magnetic valve (11), solution pool first output (6b) is connected with the entrance of the first solution pump (12), and the outlet of the first solution pump (12) is connected with the entrance of check valve (13), concentrated solution absorber second output (4d) is connected with the second solution pump (22) entrance, the outlet of the second solution pump (22) is connected with regenerator first input end (5a) by the 7th magnetic valve (21), condenser second output (2d) is divided into two-way, the first magnetic valve (9) of leading up to is connected with described regenerator first input end (5a), and the outlet of another road and check valve (13) converges rear as this device weak solution/coolant outlet,
Described heat source loop comprises evaporimeter (1), solar thermal collector (7), superheat section heat exchanger (8), heat-exchanger pump (18), the 5th magnetic valve (19), the 6th magnetic valve (20) and relevant connection pipeline thereof, in described heat source loop, evaporimeter second output (1d) is connected with the entrance of heat-exchanger pump (18), the outlet of heat-exchanger pump (18) divides two-way, one tunnel is connected with superheat section heat exchanger first input end (8a), another road is connected with solar thermal collector input (7a), superheat section heat exchanger first output (8b) is connected with evaporimeter second input (1c) by the 5th magnetic valve (19), solar thermal collector output (7b) is also connected with evaporimeter second input (1c) by the 6th magnetic valve (20), superheat section heat exchanger second input (8c) is in order to be connected with the compressor outlet of this device outside, superheat section heat exchanger second output (8d) is connected in order to the entrance of the condenser external with this device,
Described cooling circuit comprises condenser (2), the 4th magnetic valve (17) and relevant connection pipeline thereof; In described cooling circuit, condenser second input (2c) is connected with the weak solution source/cooling water source of this device outside by the 4th magnetic valve (17), condensation second output (2d) point two-way, one tunnel is connected with the entrance of the first magnetic valve (9) in regeneration/refrigerating circuit, and the outlet of a road and check valve (13) converges rear weak solution/coolant outlet as this device;
Described vacuum loop comprises condensate water heat exchanger (3), the second electric expansion valve (14), the 3rd magnetic valve (15), vavuum pump (16), concentrated solution absorber (4) and relevant connection pipeline thereof; In described vacuum loop, condensate water heat exchanger first input end (3a) is connected with the outlet of the second electric expansion valve (14), condensate water heat exchanger the 3rd output (3e) is divided into two-way, one tunnel is connected with concentrated solution tourie second input (4c), the 3rd magnetic valve (15) of separately leading up to is connected with air, also be connected with the entrance of vavuum pump (16), the outlet of described vavuum pump (16) is connected with air simultaneously.
2. according to claim 1 realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, it is characterized in that, this device runs based on low-voltage vacuum, the thermal source of lower temperature can be utilized winter to realize heat source tower heat pump regeneration of waste liquor and obtain high regeneration of waste liquor efficiency, absorption refrigeration can be realized in summer, supply cold, realizes a machine Winter-summer dual purpose, achieves the multi-functional of device and improves device service efficiency.
3. according to claim 1 and 2 realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, it is characterized in that, this device is when solar energy can utilize, 5th magnetic valve (19) is in closed condition, 6th magnetic valve (20) is in opening, adopts solar thermal collector (7) solar energy that gathers as the driving heat source of regeneration of waste liquor or absorption refrigeration; When solar energy can not utilize, 5th magnetic valve (19) is in opening, 6th magnetic valve (20) is in closed condition, utilize superheated refrigerant cooling liberated heat in superheat section heat exchanger (8), as the driving heat source of plant running, thus the efficiency utilization achieved at Summer and winter solar energy, utilize superheat section refrigerant cools liberated heat to solve the discontinuous problem of solar energy simultaneously.
4. according to claim 1 and 2 realize summer cooling and winter regeneration of waste liquor heat source tower heat pump regenerative device of solution, it is characterized in that, the weak solution part that condenser second output (2d) in described regeneration/refrigerating circuit flows out enters evaporimeter (1) through the first magnetic valve (9) and regenerator (5), utilize weak solution temperature after condenser (2) heat absorption to raise and enter evaporimeter (1) again, decrease and add heat needed for the weak solution that enters and regenerate in evaporimeter, thus improve system effectiveness.
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