CN101701737B - Heat-pump-driven solution dehumidifying air-conditioning device - Google Patents

Heat-pump-driven solution dehumidifying air-conditioning device Download PDF

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Publication number
CN101701737B
CN101701737B CN 200910185026 CN200910185026A CN101701737B CN 101701737 B CN101701737 B CN 101701737B CN 200910185026 CN200910185026 CN 200910185026 CN 200910185026 A CN200910185026 A CN 200910185026A CN 101701737 B CN101701737 B CN 101701737B
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China
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solution
air
assembly
heat pump
pump
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CN 200910185026
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Chinese (zh)
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CN101701737A (en
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陈九法
乔卫来
薛琴
郑红旗
安二铭
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东南大学
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

The invention provides a heat-pump-driven solution dehumidifying air-conditioning device, comprising a solution dehumidifying component, an air processing system component, a refrigerating component and a heat pump component; the solution dehumidifying component is formed by a solution pump, a heat pump condensing pipe, a one-level solution regenerator and a solution dehumidifying device which are connected; the air processing system component comprises an outdoor blower, an exhaust blower, an exhaust valve, a new blower, a new air valve, a water-air heat exchanger and an air conditioning room; in the refrigerating component, a refrigeration evaporator, a freezing water circulating pump and a freezing water adjusting valve are connected with the water-air heat exchanger to form freezing water circulation; a refrigerating compressor, a refrigerating condenser and a refrigerating throttling valve are connected with the refrigeration evaporator to form refrigerating circulation of a cold water unit. The heat pump component is formed by a heat pump compressor, a heat pump condenser, a heat pump throttling valve and a heat pump evaporator which are connected, wherein the heat pump evaporator is connected between the refrigerating compressor and the refrigerating condenser. The air-conditioning device improves the heat adsorption temperature of the heat pump evaporator and improves the heating efficiency.

Description

A kind of heat pump driven solution dehumidifying air-conditioning device

Technical field

The invention belongs to field of air conditioning, specifically, relate to a kind of heat pump driven solution dehumidifying air-conditioning device.

Background technology

Along with social development, the sustainable growth of HVAC energy input.The environmental crisis that this makes fossil energy move towards exhausted and cause global range.Develop new highly effective refrigeration equipment and system optimization and be designed to an important directions that addresses this problem.At present, used the aircondition of independently controlling based on the temperature and humidity of solution dehumidification in the practice.

As shown in Figure 1, this device comprises solution dehumidification assembly, air treatment system assembly, cooling assembly and heat pump components.

The solution dehumidification assembly comprises solution pump, heat pump condenser, one-level solution regenerator and solution moisture removing device.The first input end of solution delivery side of pump and heat pump condenser is connected, first output of heat pump condenser is connected with second input of one-level solution regenerator, second output of one-level solution regenerator and second input of solution moisture removing device are connected, and second output of solution moisture removing device and the input of solution pump are connected.

The air treatment system assembly comprises outdoor air system component, exhaust system assembly and VMC assembly.Wherein, the outdoor air system component comprises outdoor fan; The exhaust system assembly comprises exhaust blower and exhaust valve; The VMC assembly comprises new blower fan, new air-valve, water-air heat exchanger and air-conditioned room.The output of new blower fan is connected with the input of new air-valve, the first input end of the solution moisture removing device in the output of new air-valve and the solution dehumidification assembly is connected, first output of solution moisture removing device and the first input end of water-air heat exchanger are connected, first output of water-air heat exchanger is connected with air-conditioned room, air-conditioned room is connected with the input of exhaust blower simultaneously, the output of exhaust blower is connected with the input of exhaust valve, and the output of exhaust valve communicates with external environment.The first input end of the one-level solution regenerator in the output of outdoor fan and the solution dehumidification assembly is connected, and first output of one-level solution regenerator communicates with external environment.By outdoor fan, new air-valve and water-air heat exchanger, the air treatment system assembly is connected with the solution dehumidification assembly.

Cooling assembly comprises refrigeration compressor, refrigerant condenser, refrigeration choke valve, refrigerating evaporator, chilled water circulating pump, water-air heat exchanger and chilled water control valve.Wherein, cooling water inlet and coolant outlet are arranged in the refrigerant condenser.Water-air heat exchanger in water-air heat exchanger in the cooling assembly and the air treatment system assembly is same heat exchanger.By water-air heat exchanger, cooling assembly is connected with the air treatment system assembly.

Cooling assembly has two working cycles, is respectively chilled water circulation and handpiece Water Chilling Units kind of refrigeration cycle.The chilled water circulation is formed by connecting by refrigerating evaporator, chilled water circulating pump, chilled water control valve and water-air heat exchanger.The output of chilled water circulating pump is connected with the input of chilled water control valve, second input of the output of chilled water control valve and water-air heat exchanger is connected, second output of water-air heat exchanger and the first input end of refrigerating evaporator are connected, and first output of refrigerating evaporator and the input of chilled water circulating pump are connected.The handpiece Water Chilling Units kind of refrigeration cycle is formed by connecting by refrigeration compressor, refrigerant condenser, refrigeration choke valve and refrigerating evaporator.The output of refrigeration compressor is connected with the first input end of refrigerant condenser, first output of refrigerant condenser is connected with the input of refrigeration choke valve, the output of refrigeration choke valve and second input of refrigerating evaporator are connected, and second output of refrigerating evaporator and the input of refrigeration compressor are connected.Two shared refrigerating evaporators of working cycles.Cooling water inlet and coolant outlet on the refrigerant condenser are connected on the cooling tower.

Heat pump components comprises heat pump compressor, heat pump condenser, heat pump choke valve and evaporator with heat pump.Second input of the output of heat pump compressor and heat pump condenser is connected, second output of heat pump condenser is connected with the input of heat pump choke valve, second input of the output of heat pump choke valve and evaporator with heat pump is connected, second output of evaporator with heat pump and the input of heat pump compressor are connected, and form a recycle circuit.Wherein, the heat pump condenser in heat pump condenser in the heat pump components and the solution dehumidification assembly is same condenser.

The aircondition of said structure utilizes the hygroscopicity of concentrated solution to handle the humidity load of air-conditioned room, and handpiece Water Chilling Units only need be born the sensible heat load of air-conditioned room like this, has improved the chilled water supply water temperature; And solution dehumidifying air-conditioning system can use low-temperature heat source to drive, and can make full use of low-temperature waste heat, has remarkable energy saving effect.Although solution dehumidifying air-conditioning system has a lot of advantages, traditional solution dehumidifying air-conditioning system is not widely used.The greatest drawback that this device exists is: because the restriction of environment temperature, the evaporator with heat pump in the heat pump components absorbs the heat temperature from environment low, and heat pump cycle efficient is low.

Summary of the invention

Technical problem to be solved by this invention provides a kind of heat pump driven solution dehumidifying air-conditioning device, and the heat temperature so that the evaporator with heat pump that improves in the heat pump components absorbs improves heating efficiency.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of heat pump driven solution dehumidifying air-conditioning device comprises solution dehumidification assembly, air treatment system assembly, cooling assembly and heat pump components;

Described solution dehumidification assembly is formed by connecting by solution pump, heat pump condenser, one-level solution regenerator and solution moisture removing device;

Described air treatment system assembly comprises outdoor air system component, exhaust system assembly and VMC assembly; The outdoor air system component comprises outdoor fan; The exhaust system assembly comprises exhaust blower and exhaust valve; The VMC assembly comprises new blower fan, new air-valve, water-air heat exchanger and air-conditioned room; New blower fan is connected with solution moisture removing device in the solution dehumidification assembly, and outdoor fan is connected with one-level solution regenerator in the solution dehumidification assembly; Exhaust blower is connected with exhaust valve, and this exhaust blower is connected with air-conditioned room; Water-air heat exchanger is connected in air-conditioned room and the solution dehumidification assembly between the solution moisture removing device;

Described cooling assembly comprises refrigeration compressor, refrigerant condenser, refrigeration choke valve, refrigerating evaporator, chilled water circulating pump, water-air heat exchanger and chilled water control valve; Refrigerant condenser has cooling water inlet and coolant outlet, and cooling water inlet and coolant outlet are connected on the cooling tower; Water-air heat exchanger in water-air heat exchanger in the cooling assembly and the air treatment system assembly is same heat exchanger; Refrigerating evaporator, chilled water circulating pump, chilled water control valve are connected with water-air heat exchanger, form the chilled water circulation; Refrigeration compressor, refrigerant condenser, refrigeration choke valve are connected with refrigerating evaporator, form the handpiece Water Chilling Units kind of refrigeration cycle; Refrigerating evaporator of described two cycle sharings;

Described heat pump components is formed by connecting by heat pump compressor, heat pump condenser, heat pump choke valve and evaporator with heat pump; The shared heat pump condenser of heat pump components and solution dehumidification assembly; Evaporator with heat pump in the described heat pump components is between the refrigeration compressor and refrigerant condenser in cooling assembly.

As first kind of improvement project: the exhaust system assembly also comprises first air heat exchanger, second air heat exchanger, secondary solution regenerator and solution reheater; Described exhaust blower, exhaust valve, first air heat exchanger, second air heat exchanger, secondary solution regenerator are connected successively with the solution reheater; Wherein, the solution reheater also is connected with one-level solution regenerator; First air heat exchanger also is connected between the new air-valve and the solution moisture removing device in the solution dehumidification assembly in the air treatment system assembly; Second air heat exchanger also is connected the end of one-level solution regenerator.

As second kind of improvement project: the solution dehumidification assembly also comprises solution heat exchanger, weak solution fluid reservoir, weak solution pump, concentrated solution fluid reservoir, secondary solution regenerator, solution reheater, concentrated solution control valve and concentrated solution pump; Described solution pump, solution heat exchanger, weak solution fluid reservoir, weak solution pump, heat pump condenser, one-level solution regenerator, solution reheater, secondary solution regenerator, concentrated solution pump, solution heat exchanger, concentrated solution fluid reservoir, concentrated solution control valve, solution moisture removing device connect successively.

As the third improvement project: the solution dehumidification assembly also comprises solar energy photothermal converter and weak solution by-passing valve; This weak solution by-passing valve is between weak solution pump and heat pump condenser; This solar energy photothermal converter is connected between weak solution by-passing valve and the one-level solution regenerator.

Adopt a kind of solution dehumidifying air-conditioning device of the present invention, have following beneficial effect:

1. the present invention is based on the air-conditioning system humiture independently controls.Because air handling process does not need with chilled water dehumidifying, thus the temperature of chilled water can be elevated to about 14 ℃, thereby improve the efficient of handpiece Water Chilling Units.Evaporator with heat pump is an evaporimeter in heat pump components, but is equivalent to a condenser in the handpiece Water Chilling Units kind of refrigeration cycle.Like this, the refrigeration compressor outlet is provided with two condensers.Evaporator with heat pump is with the heat transferred heat pump of steam cooling and condensation.This technology has improved the sink temperature of heat pump, thereby improves the Energy Efficiency Ratio of heat pump.

2. air-treatment assembly of the present invention, new wind assembly can reach the humidity that needs by two-stage regenerator, and reduce the concentration of hygroscopic solution by the apparent cold in first air heat exchanger recovery air draft; The air draft assembly can reclaim the full heat of air draft.Help energy saving of system like this.

3. solution dehumidification assembly of the present invention adopts two-stage regeneration to add hot mode again, can reclaim the latent heat in the air draft.Utilize outdoor air to realize the one-level regeneration of dehumidification solution, and will be used to improve the concentration realization secondary regeneration of solution after the temperature of outgoing air rising.Increase the concentration difference of dehumidification solution circulation, and after the raising of the concentration of solution, increase the energy storage capacity of unit volume;

4. solution dehumidification assembly of the present invention adopts two stage dehumidify to add the middle type of cooling, can increase the concentration difference of solution circulation, increases the Energy Efficiency Ratio of moisture absorption system.

5. solution dehumidification assembly of the present invention is furnished with solar-thermal converter.When the solar energy abundance, energy partly is stored in the concentrated solution fluid reservoir; When solar energy is more weak, regulate the aperture of by-pass flow triple valve, the heat of regeneration is met the demands.

Description of drawings

Fig. 1 is the system flow chart of traditional solution dehumidifying air-conditioning device of describing in the background technology.

Fig. 2 is the system flow chart of aircondition of the present invention.

Fig. 3 is the system flow chart of the improvement project I of aircondition of the present invention.

Fig. 4 is the system flow chart of the improvement project II of aircondition of the present invention.

Fig. 5 is the system flow chart of the improvement project III of aircondition of the present invention.

Fig. 6 is the fundamental diagram of the improvement project III of aircondition of the present invention.

Among the figure, 1, new blower fan; 2, solution moisture removing device; 3, water-air heat exchanger; 4, air-conditioned room; 5, exhaust blower; 6, solution pump; 7, solar energy photothermal converter; 8, one-level solution regenerator; 9, outdoor fan; 10, refrigerating evaporator; 11, chilled water circulating pump; 12, chilled water control valve; 13, refrigeration compressor; 14, refrigerant condenser; 14a, cooling water inlet; 14b, coolant outlet; 15, refrigeration choke valve; 16, evaporator with heat pump; 17, heat pump compressor; 18, heat pump condenser; 19, heat pump choke valve; 20, exhaust valve; 21, first air heat exchanger; 22, second air heat exchanger; 23, secondary solution regenerator; 24, solution reheater; 25, new air-valve; 26, solution heat exchanger; 27, weak solution fluid reservoir; 28, weak solution pump; 29, concentrated solution pump; 30, concentrated solution fluid reservoir; 31, concentrated solution control valve; 32, concentrated solution by-passing valve; 33, weak solution by-passing valve.

The specific embodiment

As shown in Figure 2, solution dehumidifying air-conditioning device of the present invention comprises solution dehumidification assembly, air treatment system assembly, cooling assembly and heat pump components.

The air treatment system assembly comprises outdoor air system component, exhaust system assembly and VMC assembly.Wherein, the outdoor air system component comprises outdoor fan 9; The exhaust system assembly comprises exhaust blower 5 and exhaust valve 20; The VMC assembly comprises new blower fan 1, new air-valve 25, water-air heat exchanger 3 and air-conditioned room 4.The output of new blower fan 1 is connected with the input of new air-valve 25, the first input end of the solution moisture removing device 2 in the output of new air-valve 25 and the solution dehumidification assembly is connected, first output of solution moisture removing device 2 is connected with the first input end of water-air heat exchanger 3, first output of water-air heat exchanger 3 is connected with air-conditioned room 4, air-conditioned room 4 is connected with the input of exhaust blower 5 simultaneously, the output of exhaust blower 5 is connected with the input of exhaust valve 20, and the output of exhaust valve 20 communicates with external environment.The first input end of the one-level solution regenerator 8 in the output of outdoor fan 9 and the solution dehumidification assembly is connected, and first output of one-level solution regenerator 8 communicates with external environment.By outdoor fan 9, new air-valve 25 and water-air heat exchanger 3, the air treatment system assembly is connected with the solution dehumidification assembly.

As Fig. 2 and shown in Figure 6, the operation principle of air treatment system assembly is: outdoor fan 9 is sent into air in one-level solution regenerator 8.Moisture in the high temperature weak solution in the absorption of air one-level solution regenerator 8.New blower fan 1 is sent into outdoor new wind in the solution moisture removing device 2.Concentrated solution in the solution moisture removing device 2 absorbs the moisture in the new wind, reduces the water capacity of new wind.The new wind that comes out from solution moisture removing device 2 enters water-air heat exchanger 3, with the cryogenic freezing water heat exchange in the kind of refrigeration cycle, realizes the reduction of air themperature.Air after the cooling enters air-conditioned room 4 after discharging from water-air heat exchanger 3.

Cooling assembly comprises refrigeration compressor 13, evaporator with heat pump 16, refrigerant condenser 14, refrigeration choke valve 15, refrigerating evaporator 10, chilled water circulating pump 11, water-air heat exchanger 3 and chilled water control valve 12.Wherein, cooling water inlet 14a and coolant outlet 14b are arranged in the refrigerant condenser 14.Water-air heat exchanger 3 in the cooling assembly is same heat exchangers with the water-air heat exchanger 3 in the air treatment system assembly.By water-air heat exchanger 3, cooling assembly is connected with the air treatment system assembly.

Cooling assembly has two working cycles, is respectively chilled water circulation and handpiece Water Chilling Units kind of refrigeration cycle.The chilled water circulation is formed by connecting by refrigerating evaporator 10, chilled water circulating pump 11, chilled water control valve 12 and water-air heat exchanger 3.The output of chilled water circulating pump 11 is connected with the input of chilled water control valve 12, second input of the output of chilled water control valve 12 and water-air heat exchanger 3 is connected, second output of water-air heat exchanger 3 is connected with the first input end of refrigerating evaporator 10, and first output of refrigerating evaporator 10 is connected with the input of chilled water circulating pump 11.The handpiece Water Chilling Units kind of refrigeration cycle is formed by connecting by refrigeration compressor 13, evaporator with heat pump 16, refrigerant condenser 14, refrigeration choke valve 15 and refrigerating evaporator 10.The output of refrigeration compressor 13 is connected with the first input end of evaporator with heat pump 16, first output of evaporator with heat pump 16 is connected with the first input end of refrigerant condenser 14, first output of refrigerant condenser 14 is connected with the input of refrigeration choke valve 15, the output of refrigeration choke valve 15 and second input of refrigerating evaporator 10 are connected, and second output of refrigerating evaporator 10 is connected with the input of refrigeration compressor 13.Two shared refrigerating evaporators 10 of working cycles.Cooling water inlet 14a and coolant outlet 14b on the refrigerant condenser 14 are connected on the cooling tower.

As Fig. 2 and shown in Figure 6, the operation principle of cooling assembly is: at first, and in the handpiece Water Chilling Units kind of refrigeration cycle, from the high temperature refrigerant steam that refrigeration compressor 13 comes out, cooling in evaporator with heat pump 16, and partial condensation.In evaporator with heat pump 16, cold-producing medium enters cooling fully in the refrigerant condenser 14 then with the cold-producing medium in the heat transferred heat pump components.At this moment, by cooling water inlet 14a, the cooling fluid in the cooling tower flows in the refrigerant condenser 14, behind the heat of absorption refrigeration agent, flows back to the cooling tower from coolant outlet 14b again.Cold-producing medium is cooling fully in refrigerant condenser 14, and produces certain degree of supercooling.15 step-downs enter refrigerating evaporator 10 through the refrigeration choke valve to cross cold cold-producing medium.In refrigerating evaporator 10, cold-producing medium evaporates by the chilled water heat in the circulation of absorption refrigerating water, and the cold-producing medium after the evaporation is got back to refrigeration compressor 13 fully.The cold-producing medium periodic duty in the handpiece Water Chilling Units kind of refrigeration cycle that comes to this.Chilled water is in refrigerating evaporator 10, and cooled dose absorbs heat, and temperature is reduced to about 14 ℃, enters in the chilled water circulating pump 11.Regulate by chilled water control valve 12, air conditioning water is transported to water-air heat exchanger 3 from chilled water circulating pump 11, make the new wind cooling of flowing through water-air heat exchanger 3 in the new wind assembly, and chilled water temperature raises.Chilled water after the intensification flows into again in the refrigerating evaporator 10.Chilled water so circulates, to reduce new wind-warm syndrome degree.

The solution dehumidification assembly comprises solution pump 6, heat pump condenser 18, one-level solution regenerator 8 and solution moisture removing device 2.The output of solution pump 6 is connected with the first input end of heat pump condenser 18, first output of heat pump condenser 18 is connected with second input of one-level solution regenerator 8, second output of one-level solution regenerator 8 is connected with second input of solution moisture removing device 2, and second output of solution moisture removing device 2 is connected with the input of solution pump 6.

As Fig. 2 and shown in Figure 6, the operation principle of solution dehumidification assembly is: concentrated solution absorbs the moisture in the new wind in solution moisture removing device 2, and solution concentration reduces.By solution pump 6, solution is admitted to heating in the heat pump condenser 18.Solution temperature enters in the one-level solution regenerator 8 after raising.In one-level solution regenerator 8, outdoor air is taken away the moisture in the solution, makes solution concentration.Solution after concentrating enters in the solution moisture removing device 2.Solution comes to this and circulates in solution dehumidification system.

Heat pump components comprises heat pump compressor 17, heat pump condenser 18, heat pump choke valve 19 and evaporator with heat pump 16.Second input of the output of heat pump compressor 17 and heat pump condenser 18 is connected, second output of heat pump condenser 18 is connected with the input of heat pump choke valve 19, second input of the output of heat pump choke valve 19 and evaporator with heat pump 16 is connected, second output of evaporator with heat pump 16 is connected with the input of heat pump compressor 17, forms a recycle circuit.Wherein, the heat pump condenser 18 in heat pump condenser in the heat pump components 18 and the solution dehumidification assembly is same condensers.Evaporator with heat pump 16 and the evaporator with heat pump 16 in the handpiece Water Chilling Units kind of refrigeration cycle in the heat pump components are same evaporimeters.

As Fig. 2 and shown in Figure 6, the operation principle of heat pump components is: the high temperature refrigerant from heat pump compressor 17 comes out, in heat pump condenser 18, carry out condensation, and condenser adopts the adverse current form.At this moment, the low temperature weak solution in the heat pump condenser 18 is flow through in the cold-producing medium heating in the solution dehumidification assembly, make the weak solution temperature be elevated to 70~80 ℃.Condensed cold-producing medium enters evaporator with heat pump 16 through heat pump choke valve 19 after the step-down, absorb the heat that flows through the cold-producing medium in the evaporator with heat pump 16 in the handpiece Water Chilling Units kind of refrigeration cycle, enters heat pump compressor 17 after the evaporation.In the heat pump components, evaporator with heat pump 16 is equivalent to the low-temperature receiver of heat pump components, and temperature is 45~55 ℃.Cold-producing medium comes to this and circulates in heat pump components, improves the temperature of weak solution, reduces the temperature of cold-producing medium in the handpiece Water Chilling Units kind of refrigeration cycle.

In traditional handpiece Water Chilling Units kind of refrigeration cycle, cooling tower enters condensation heat in the environment.This part discharges the heat temperature than environment height, so can absorb this part heat by evaporator with heat pump 16 is connected in the handpiece Water Chilling Units kind of refrigeration cycle, passes to heat pump, makes full use of this part heat.Compare traditional heat pump, the heat pump sink temperature in the heat pump among the present invention is higher, thereby the heating efficiency height of this system, and with heat recovery and utilization unnecessary in the handpiece Water Chilling Units, avoids discharging in environment.

Improvement project I:

The aircondition of technique scheme improves the condensation heat temperature in the cooling assembly by the evaporator with heat pump in the common heat pump components 16 is connected in the handpiece Water Chilling Units kind of refrigeration cycle, thereby realizes improving the overall efficiency of aircondition.In addition, improve the exhaust system assembly, can further improve the overall efficiency of aircondition.

As shown in Figure 3, the exhaust system assembly except comprising exhaust blower 5 and exhaust valve 20, also comprises first air heat exchanger 21, second air heat exchanger 22, secondary solution regenerator 23 and solution reheater 24.Wherein, first air heat exchanger 21 is connected between the new air-valve 25 and the solution moisture removing device 2 in the solution dehumidification assembly in the air treatment system assembly simultaneously.Second air heat exchanger 22 is connected one-level solution regenerator 8 ends.The output of exhaust blower 5 is connected with the input of exhaust valve 20, the output of exhaust valve 20 is connected with the first input end of first air heat exchanger 21, first output of first air heat exchanger 21 is connected with the first input end of second air heat exchanger 22, first output of second air heat exchanger 22 is connected with the first input end of secondary solution regenerator 23, and first output of secondary solution regenerator 23 communicates with external environment.The input of solution reheater 24 is connected with second output of one-level solution regenerator 8, the output of solution reheater 24 is connected with second input of secondary solution regenerator 23, and second output of secondary solution regenerator 23 is connected with second input of solution moisture removing device 2.Second input of first air heat exchanger 21 is connected with the output of new air-valve 25, and second output of first air heat exchanger 21 is connected with the first input end of solution moisture removing device 2.Second input of second air heat exchanger 22 is connected with first output of one-level solution regenerator 8.Second output of second air heat exchanger 22 communicates with external environment.

As Fig. 3 and shown in Figure 6, exhaust system assembly operation principle after the improvement is: in the exhaust system assembly, after discharge air flow is crossed exhaust blower 5 and exhaust valve 20, in first air heat exchanger 21 with the VMC assembly in the new air heat-exchange of new blower fan 1 input, enter then in second air heat exchanger 22, with from outdoor fan 9 input and rise by temperature after the hot room outer air heat exchange of one-level solution regenerator 8, air draft this moment has stronger hygroscopicity, by entering atmosphere behind the steam in secondary solution regenerator 23 absorbent solutions.

Air-conditioning temperature of outgoing air and water capacity are all less, and improvement project I realizes showing cold recovery by new wind, improves the temperature of air draft simultaneously.Realize that by secondary solution regenerator 23 latent heat reclaims, promptly utilize the dehumidifying effect height of air draft, the concentrated solution after the one-level regeneration is further concentrated.Simultaneously, outdoor wind by with the air draft heat exchange with the heat transferred air draft, improve temperature of outgoing air, strengthened the wettability power of air draft, help to improve the Energy Efficiency Ratio of solution dehumidification circulation.

Improvement project II:

In improvement project I, improve in the exhaust gas system, can increase fluid reservoir, strengthen the practicality of solution dehumidification assembly.

As shown in Figure 4, the solution dehumidification assembly, except comprising one-level solution regenerator 8, heat pump condenser 18, solution pump 6 and solution moisture removing device 2, also comprise solution heat exchanger 26, weak solution fluid reservoir 27, weak solution pump 28, solution reheater 24, concentrated solution fluid reservoir 30, secondary solution regenerator 23, concentrated solution control valve 31 and concentrated solution pump 29.The output of solution pump 6 is connected with the first input end of solution heat exchanger 26, first output of solution heat exchanger 26 is connected with the input of weak solution fluid reservoir 27, the output of weak solution fluid reservoir 27 is connected with the input of weak solution pump 28, the output of weak solution pump 28 is connected with the first input end of heat pump condenser 18, first output of heat pump condenser 18 is connected with second input of one-level solution regenerator 8, second output of one-level solution regenerator 8 is connected with the input of solution reheater 24, the output of solution reheater 24 is connected with second input of secondary solution regenerator 23, second output of secondary solution regenerator 23 is connected with the input of concentrated solution pump 29, second input of the output of concentrated solution pump 29 and solution heat exchanger 26 is connected, second output of solution heat exchanger 26 is connected with the input of concentrated solution fluid reservoir 30, the output of concentrated solution fluid reservoir 30 is connected with the input of concentrated solution control valve 31, second input of the output of concentrated solution control valve 31 and solution moisture removing device 2 is connected, second output of solution moisture removing device 2 is connected with the input of solution pump 6, forms a recycle circuit.

As Fig. 4 and shown in Figure 6, the operation principle of solution dehumidification assembly is: the weak solution of low temperature flows out from weak solution fluid reservoir 27, behind weak solution pump 28, enter the condenser heat of absorption refrigeration agent in the heat pump condenser 18, become the weak solution of high temperature, enter one-level solution regenerator 8 then, this moment, weak solution and outdoor air carried out the caloic exchange in one-level solution regenerator 8, concentrated solution after the regeneration enters in the secondary solution regenerator 23 after heating through solution reheater 24.In secondary solution regenerator 23, concentrated solution utilizes the air draft of high temperature further to improve the concentration of dehumidification solution.The dehumidification solution of high-temperature high concentration enters in the concentrated solution fluid reservoir 30 afterwards through the weak solution of solution heat exchanger 26 with heat transferred low temperature.By the adjusting of concentrated solution control valve 31, the concentrated solution of low temperature enters in the solution moisture removing device 2, and absorbs the steam in the new wind, reaches the purpose of dehumidifying.Dehumidification solution after the moisture absorption enters in the weak solution fluid reservoir 27 after raising through solution heat exchanger 26 temperature, is sent in the heat pump condenser 18 by weak solution pump 28 and heats up so circulation.

In improvement project II,, can also directly supply with in the solution moisture removing device 2 through the solution that secondary solution regenerator 29 concentrates.Concentrated solution by-passing valve 32 is installed between solution heat exchanger 26 and concentrated solution fluid reservoir 30.The input of concentrated solution by-passing valve 32 is connected with second output of solution heat exchanger 26; First output of concentrated solution by-passing valve 32 is connected with the input of concentrated solution fluid reservoir 30; Second output of concentrated solution by-passing valve 32 is connected with second input of solution moisture removing device 2.Like this, when concentrated solution is too much, regulate concentrated solution by-passing valve 32, connecting pipeline is to concentrated solution fluid reservoir 30, and concentrated solution flows in the concentrated solution fluid reservoir 30.When needing, open concentrated solution control valve 31, concentrated solution flows in the solution moisture removing device 2 from concentrated solution fluid reservoir 30.When concentrated solution is an amount of, regulate concentrated solution by-passing valve 32, connecting pipeline is to solution moisture removing device 2.Like this, concentrated solution directly flows to solution moisture removing device 2, has saved the flow through intermediate steps of concentrated solution fluid reservoir 30 and concentrated solution control valve 31 of concentrated solution.

Technical scheme III

In technical scheme II, the solution regenerated energy of this assembly is provided by high temperature heat pump, when sunny, can utilize solar energy photothermal converter 7 heated solutions.

As shown in Figure 5, a weak solution by-passing valve 33 is installed between weak solution pump 28 and heat pump condenser 18.Weak solution by-passing valve 33 is by-pass flow triple valves.Weak solution by-passing valve 33 inputs are connected with the output of weak solution pump 28.Weak solution by-passing valve 33 first outputs are connected with the input of solar energy photothermal converter 7, and the output of solar energy photothermal converter 7 is connected with second input of one-level solution regenerator 8.Second output of weak solution by-passing valve 33 is connected with the first input end of heat pump condenser 18, and first output of heat pump condenser 18 is connected with second input of one-level solution regenerator 8.Like this, solar energy photothermal converter 7 and heat pump condenser 18 form in parallel.By regulating weak solution by-passing valve 33, can control the flow direction of weak solution.When outdoor solar energy is sufficient, regulate weak solution by-passing valve 33, weak solution is flow through from solar energy photothermal converter 7.Like this, the low temperature weak solution makes solution temperature be elevated to 70~80 ℃ all by solar energy photothermal converter 7, enters then in the one-level solution regenerator 8.When outdoor solar energy is inadequate, regulate weak solution by-passing valve 33, weak solution is flowed in the heat pump condenser 18, be heated to 70~80 ℃ by the high temperature heat pump assembly, enter then in the one-level solution regenerator 8.

Claims (5)

1. a heat pump driven solution dehumidifying air-conditioning device comprises solution dehumidification assembly, air treatment system assembly, cooling assembly and heat pump components;
Described solution dehumidification assembly is formed by connecting by solution pump (6), heat pump condenser (18), one-level solution regenerator (8) and solution moisture removing device (2);
Described air treatment system assembly comprises outdoor air system component, exhaust system assembly and VMC assembly; The outdoor air system component comprises outdoor fan (9); The exhaust system assembly comprises exhaust blower (5) and exhaust valve (20); The VMC assembly comprises new blower fan (1), new air-valve (25), water-air heat exchanger (3) and air-conditioned room (4); New blower fan (1) is connected with solution moisture removing device (2) in the solution dehumidification assembly, and outdoor fan (9) is connected with one-level solution regenerator (8) in the solution dehumidification assembly; Exhaust blower (5) is connected with exhaust valve (20), and this exhaust blower (5) is connected with air-conditioned room (4); Water-air heat exchanger (3) is connected in air-conditioned room (4) and the solution dehumidification assembly between the solution moisture removing device (2);
Described cooling assembly comprises refrigeration compressor (13), refrigerant condenser (14), refrigeration choke valve (15), refrigerating evaporator (10), chilled water circulating pump (11), water-air heat exchanger (3) and chilled water control valve (12); Refrigerant condenser (14) has cooling water inlet (14a) and coolant outlet (14b), and cooling water inlet (14a) and coolant outlet (14b) are connected on the cooling tower; Water-air heat exchanger (3) in water-air heat exchanger in the cooling assembly (3) and the air treatment system assembly is same heat exchanger; Refrigerating evaporator (10), chilled water circulating pump (11), chilled water control valve (12) and water-air heat exchanger (3) are connected, and form the chilled water circulation; Refrigeration compressor (13), refrigerant condenser (14), refrigeration choke valve (15) are connected with refrigerating evaporator (10), form the handpiece Water Chilling Units kind of refrigeration cycle; Described refrigerating evaporators of two cycle sharings (10);
Described heat pump components is formed by connecting by heat pump compressor (17), heat pump condenser (18), heat pump choke valve (19) and evaporator with heat pump (16); The shared heat pump condenser of heat pump components and solution dehumidification assembly (18);
It is characterized in that the evaporator with heat pump in the described heat pump components (16) is arranged between the refrigeration compressor (13) and refrigerant condenser (14) of cooling assembly.
2. according to the described solution dehumidifying air-conditioning device of claim 1, it is characterized in that described exhaust system assembly also comprises first air heat exchanger (21), second air heat exchanger (22), secondary solution regenerator (23); Described exhaust blower (5), exhaust valve (20), first air heat exchanger (21), second air heat exchanger (22), secondary solution regenerator (23) connect successively; Wherein, first air heat exchanger (21) also is connected between the new air-valve (25) and the solution moisture removing device (2) in the solution dehumidification assembly in the air treatment system assembly; Second air heat exchanger (22) also is connected the end of one-level solution regenerator (8).
3. according to the described solution dehumidifying air-conditioning device of claim 2, it is characterized in that, described solution dehumidification assembly also comprises solution heat exchanger (26), weak solution fluid reservoir (27), weak solution pump (28), concentrated solution fluid reservoir (30), secondary solution regenerator (23), solution reheater (24), concentrated solution control valve (31) and concentrated solution pump (29); Described solution pump (6), solution heat exchanger (26), weak solution fluid reservoir (27), weak solution pump (28), heat pump condenser (18), one-level solution regenerator (8), solution reheater (24), secondary solution regenerator (23), concentrated solution pump (29), solution heat exchanger (26), concentrated solution fluid reservoir (30), concentrated solution control valve (31), solution moisture removing device (2) connect successively.
4. according to the described solution dehumidifying air-conditioning device of claim 3, it is characterized in that described solution dehumidification assembly also comprises concentrated solution by-passing valve (32); This concentrated solution by-passing valve (32) is positioned between solution heat exchanger (26) and the concentrated solution fluid reservoir (30), and is connected with the output of concentrated solution control valve (31).
5. according to each described solution dehumidifying air-conditioning device in the claim 1 to 4, it is characterized in that described solution dehumidification assembly also comprises solar energy photothermal converter (7) and weak solution by-passing valve (33); This weak solution by-passing valve (33) is positioned between weak solution pump (28) and the heat pump condenser (18); This solar energy photothermal converter (7) is connected between weak solution by-passing valve (33) and the one-level solution regenerator (8).
CN 200910185026 2009-10-28 2009-10-28 Heat-pump-driven solution dehumidifying air-conditioning device CN101701737B (en)

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Publication number Priority date Publication date Assignee Title
CN102022793B (en) * 2010-12-01 2012-09-19 东南大学 Latent heat recovery-based high-efficiency heat pump type heat source tower solution regenerating device and method
CN102252381B (en) * 2011-05-27 2013-04-10 黄真银 Central air-conditioning system combining independent regulation of temperature and humidity of heat recovery solution of screw machine
CN102563786B (en) * 2012-01-12 2014-04-23 西安交通大学 Refrigeration and heat pump composite energy system with independently controlled temperature and independently controlled humidity
CN102538090B (en) * 2012-02-14 2014-08-06 南昌大学 Outer surface evaporation type liquor dehumidifying device
CN103266926B (en) * 2013-05-20 2015-09-09 东南大学 A kind of device and method utilizing middle-low temperature heat used heat to realize cool and thermal power multiple-supplying
CN104214873B (en) * 2014-09-24 2016-09-07 东南大学 A kind of heat pump based on condensation heat classified utilization drives solution dehumidification device and method
CN106288097B (en) * 2016-10-14 2019-10-01 浙江大学 Trans critical cycle and the compound air treatment system of solution dehumidification system
CN106765770B (en) * 2016-12-30 2019-06-04 东南大学 A kind of efficient fresh air conditioner processing unit and method of condensation and solution fractionation dehumidifying

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