CN105841272B - A solar powered air conditioning system with independent temperature and humidity control - Google Patents

Abstract

The invention discloses a kind of humiture independence control air conditioner systems of Driven by Solar Energy, including solar energy heat collecting module, absorption refrigeration module, solution dehumidification module and domestic water module；Solar energy heat collecting module includes vacuum tube solar heating element, heat storage water tank, first circulation water pump, auxiliary thermal source and second circulation water pump；Absorption refrigeration module includes generator, condenser, expansion valve, evaporator, absorber, the first solution heat exchanger, the first solution pump, water segregator, water collector, third water circulating pump, capillary radiation air conditioning terminal, the 4th water circulating pump and cooling tower；Solution dehumidification module includes regenerator, exhaust blower, the first water-solution heat exchanger, the second solution pump, the second solution heat exchanger, dehumidifier, pressure fan, the second water-solution heat exchanger, third solution pump, total-heat exchanger and mixing bellows.Many places use the energy saving form such as temperature gradient utilization, recuperation of heat to the air-conditioning system in principle, improve efficiency of energy utilization.

Description

A solar powered air conditioning system with independent temperature and humidity control

Technical field:

The invention belongs to the field of air conditioning, relates to a solar energy air conditioning system, and in particular relates to a solar energy driven air conditioning system for independent temperature and humidity control.

Background technique:

According to the "Analysis Report on Market Prospects and Investment Strategic Planning of China's Intelligent Building Industry from 2013 to 2017" by the Prospective Industry Research Institute, the proportion of building energy consumption in my country's total energy consumption has risen to 27.45%. The energy consumption of HVAC accounts for more than 60% of the total energy consumption of buildings. Building energy conservation and emission reduction has become an energy problem that needs to be solved urgently. In 2006, the state promulgated the "Renewable Energy Law of the People's Republic of China", which vigorously advocates the use of renewable energy, increases energy supply, and achieves sustainable economic and social development. Common renewable energy sources include solar energy, hydro energy, wind energy, tidal energy, etc. In view of the regional differences and instability of renewable energy such as wind energy and water energy, it is difficult to effectively utilize and promote it in building energy conservation, while solar energy is widely distributed and rich in resources, which are inexhaustible and inexhaustible. It is calculated that the total amount of solar energy reaching the ground in one year is still about 1.892×10 ¹⁷ t equivalent to standard coal, which is 10,000 times the proven reserves of the world’s main energy sources. With these advantages, the development and utilization of solar energy has extremely broad prospects. In today's energy shortage era, governments around the world take the utilization of solar energy resources as an important part of their national sustainable development strategies.

The traditional air-conditioning system allows the air to pass through the cold surface below its dew point temperature, that is, the condensation and dehumidification method (using chilled water at 7°C) to achieve cooling and dehumidification of the air, while removing the sensible heat load and latent heat load of the building (humidity). load). Cooling requires the temperature of the cold source to be lower than the dry bulb temperature of the air, and dehumidification requires the temperature of the cold source to be lower than the dew point temperature of the air. The sensible heat load, which accounts for more than half of the total load, can be discharged by the high-temperature cold source, but it shares 7°C with the dehumidification. The low-temperature cold source is processed, resulting in a waste of energy utilization grade. When the air is cooled and dehumidified by condensation and dehumidification, the ratio of sensible heat to latent heat absorbed can only change within a certain range, while the heat-to-moisture ratio required for indoor environmental regulation in buildings varies within a larger range. Moreover, the wet surface produced by the condensation dehumidification method becomes a good place for the reproduction of biological pollutants such as mold, which seriously affects the indoor air quality.

The temperature and humidity independent control air-conditioning system proposed by Academician Jiang Yi of Tsinghua University adopts the method of dehumidification to adjust the fresh air humidity load, and adopts the method of refrigeration to reduce the sensible heat load of the air, so as to realize the independent adjustment of temperature and humidity, and to control energy saving and thermal comfort in the system. A theoretical breakthrough has been achieved. The temperature and humidity are independently controlled by the air-conditioning system, and the high-temperature cold source is used for refrigeration, which can improve the energy efficiency of the system and reduce energy expenditure. The dehumidification process can strengthen the treatment of air quality and reduce indoor air pollution. The system can overcome the shortcomings of the traditional air-conditioning system, such as high energy consumption, poor comfort and poor adjustment performance.

However, currently applied temperature and humidity independent control air conditioning systems mostly use: vapor compression refrigeration method + condensation dehumidification (or solution dehumidification), which still has the disadvantage of large energy consumption. The invention breaks through the traditional thinking and integrates the absorption refrigeration system and the solution dehumidification system to form an air conditioning system with independent temperature and humidity control. Both subsystems belong to the absorption thermal system and can be driven by thermal energy. system. At the same time, in terms of heat utilization, the air-conditioning system adopts energy-saving forms such as temperature gradient utilization and heat recovery as much as possible to improve energy utilization efficiency.

The Chinese patent with application number 201520621166.5 discloses an air-conditioning system for independent control of temperature and humidity of solar solution dehumidification. The air-conditioning system only adopts solar-driven solution dehumidification module, so as to achieve the purpose of processing air humidity, and the part of air temperature processing (sensible heat treatment) is not used. Solar powered, simple in form and structure, cannot form a cascade utilization of temperature, and the building energy saving effect is not obvious enough. In addition to the enhanced utilization of solar energy, the invention also adopts the temperature gradient utilization for the coupling system, designs the air supply and return air forms of the user's room, and strengthens the heat recovery and utilization.

Invention content:

The purpose of the present invention is to provide a solar-driven temperature and humidity independent control air-conditioning system, which adopts energy-saving methods such as temperature gradient utilization and heat recovery, and has obvious building energy-saving effect, high thermal comfort and high air quality in the user's room, and can overcome the Disadvantages of traditional air conditioning systems.

To achieve the above object, the present invention adopts the following technical solutions to realize:

A solar-driven air-conditioning system with independent temperature and humidity control, comprising a solar heat collection module, an absorption refrigeration module, a solution dehumidification module and a domestic water module; wherein,

The solar heat collection module includes a vacuum tube solar heat collector, a hot water storage tank, a first circulating water pump, an auxiliary heat source and a second circulating water pump;

The absorption refrigeration module includes a generator, a condenser, an expansion valve, an evaporator, an absorber, a first solution heat exchanger, a first solution pump, a water separator, a water collector, a third circulating water pump, a capillary radiation air conditioner terminal, The fourth circulating water pump and cooling tower;

The solution dehumidification module includes a regenerator, an exhaust fan, a first water-solution heat exchanger, a second solution pump, a second solution heat exchanger, a dehumidifier, a blower, a second water-solution heat exchanger, a third solution pump, Total heat exchanger and mixed air box;

The vacuum tube solar collector, the first circulating water pump and the hot water storage tank are connected in sequence to form a circulation loop, and the medium of the circulation loop is water; the hot water storage tank, the auxiliary heat source and the second circulating water pump are sequentially connected by pipes to form A circulation loop, the medium of which is water, the circulation loop passes through the generator first, and then passes through the first water-solution heat exchanger to form a gradient heat utilization; wherein, there is a partition in the middle of the hot water storage tank, and the partition There is a gap on the side;

The generator, the first solution heat exchanger, the absorber and the first solution pump are connected in sequence to form a solution circulation loop, and the medium of the circulation loop is lithium bromide solution; the generator, the condenser, the expansion valve, the evaporator and the absorber are sequentially pipelined Connection, the medium of the pipeline is water or water vapor; the evaporator, the third circulating water pump, the water separator, the capillary radiant air conditioner end and the water collector are connected in sequence to form a circulating loop, and the medium of the circulating loop is water; the cooling tower and the first The four circulating water pumps are connected to form a circulating loop, the medium of the circulating loop is water, and the circulating loop passes through the second water-solution heat exchanger, the absorber and the condenser in turn to form a gradient heat utilization;

The regenerator, the second solution heat exchanger, the third solution pump, the second water-solution heat exchanger, the dehumidifier, the second solution pump and the first water-solution heat exchanger are connected in sequence to form a solution circulation loop. The medium of the dehumidifier is lithium bromide solution; the second solution heat exchanger exchanges heat between the low-temperature solution and the high-temperature solution in the circulation loop, that is, heat recovery; a total heat exchanger is installed on the front side of the dehumidifier, and the outdoor fresh air conducts heat recovery for the return air of the user's room, A blower is installed on the back side of the dehumidifier to provide the driving force for air supply; a mixing air box is installed on the front side of the regenerator, and the outdoor fresh air and the return air of the user room are mixed and then enter the regenerator.

The domestic water module is connected to the upper part of the hot water storage tank through pipes.

A further improvement of the present invention is that the domestic water module includes one or more domestic water equipment, and the domestic water equipment is connected to the upper part of the hot water storage tank through a pipeline, and can directly obtain hot water.

A further improvement of the present invention is that, during operation, the vacuum tube solar collector in the solar collector module absorbs solar radiation, the water inside the collector is heated, and the hot water flows into the hot water storage tank under the action of the first circulating water pump. The upper part, and then flows out from the upper part of the hot water storage tank, and passes through the auxiliary heat source first. When the temperature of the hot water flowing out of the upper part of the hot water storage tank is lower than 90 degrees, the auxiliary heat source turns on the heating function, and the hot water passes through the generator to heat the generator. After heating the lithium bromide solution in the first water-solution heat exchanger, the temperature of the hot water drops to about 75 degrees, and then passes through the first water-solution heat exchanger to heat the lithium bromide solution in the first water-solution heat exchanger. It is returned to the lower part of the hot water storage tank, and the high-temperature hot water gradually plays a heating role, that is, the temperature gradient is utilized; the hot water in the lower part of the hot water storage tank is returned to the vacuum tube solar collector again under the action of the first circulating water pump. Heating; there is a partition in the middle of the hot water storage tank to avoid rapid mixing of hot water and returning hot water. There is a gap on one side of the partition. When the auxiliary heat source is running and the vacuum tube solar collector is not running, hot water can still be formed. circular loop.

The further improvement of the present invention is that, during operation, the water in the absorption refrigeration module evaporates in the low pressure environment of the evaporator, thereby absorbing a large amount of heat, and the lithium bromide solution in the absorber continuously absorbs the water vapor in the evaporator to become a dilute solution, The dilute solution flows into the generator under the action of the first solution pump, the generator is heated by the solar heat collection module, the dilute solution is continuously concentrated into a concentrated solution, and the concentrated solution exchanges heat with the dilute solution through the first solution heat exchanger to cool down, that is, heat. It is recovered and returned to the absorber; the high-temperature water vapor generated by the concentrated solution in the generator enters the condenser and is condensed into water in a high-pressure environment. Evaporated into water vapor again; under the action of the fourth circulating water pump, the cooling water in the cooling tower first passes through the second water-solution heat exchanger to cool the internal lithium bromide dehumidifying solution, the temperature rises by 3 degrees, and then passes through the absorber , after absorbing the heat generated in the absorber, the temperature rises by 3 degrees, and finally passes through the condenser, absorbs the high temperature heat released by the condensation process and returns to the cooling tower, and the low temperature cooling water gradually plays a cooling role, that is, the temperature gradient is utilized; Under the action of the third circulating water pump, the cold water in the water collector is first cooled by the evaporator, and then the chilled water enters the water separator, and is shunted to the end of each capillary radiant air conditioner through the water separator to control the temperature of the user's room.

A further improvement of the present invention is that during operation, the outdoor fresh air with a higher temperature in the solution dehumidification module passes through the total heat exchanger to exchange heat with the low-temperature return air in the user's room, and the outdoor fresh air enters the dehumidifier after the temperature is lowered, and the The water vapor is absorbed by the lithium bromide solution. Under the action of the blower, the dehumidified fresh air is sent to the user's room to control the humidity of the user's room; The solution heat exchanger exchanges heat with the high-temperature solution flowing out of the regenerator and then heats up, and then flows into the first water-solution heat exchanger to be heated and heated, and then enters the regenerator; the dry return air after heat exchange with the outdoor fresh air After being mixed with outdoor fresh air in the mixing bellows, it enters the regenerator to absorb the evaporated water vapor of the heated lithium bromide solution, and the high-temperature and high-humidity air is discharged outdoors under the action of the exhaust fan; the lithium bromide with a higher concentration in the regenerator Under the action of the third solution pump, the solution first passes through the second solution heat exchanger and then cools down, then enters the second water-solution heat exchanger to be cooled, and finally the high-concentration and low-temperature lithium bromide solution enters the dehumidifier again. Outdoor fresh air dehumidification.

Compared with the prior art, the beneficial effects of the present invention are:

The invention provides a solar-driven temperature and humidity independent control air-conditioning system, which adopts an absorption refrigeration module to control the temperature of a user's room, and a solution dehumidification module to control the humidity of the user's room. The two modules form an air-conditioning system for independent temperature and humidity control. Compared with the traditional air-conditioning system (condensing and dehumidifying), the temperature and humidity independent control air-conditioning system can adjust the temperature and humidity separately, which will not cause waste of energy quality and quantity when the two are coupled together. Adjust the temperature and humidity of the user's room within the range. The refrigeration module adopts a high-temperature cold source, and the temperature at the end of the air conditioner is higher than the dew point temperature of the user's room, so dew condensation will not occur, the room will not breed bacteria, and the room is clean and hygienic. Its dehumidification module adopts the method of absorbing water vapor in humid air, which can meet the requirements of indoor fresh air, and can also eliminate pollutants in the air and improve indoor air quality.

Further, the present invention adopts solar energy to drive the temperature and humidity independent control air conditioning system. The high-temperature hot water heated by solar energy first passes through the generator with higher temperature requirements, and then through the water-solution heat exchanger with lower temperature requirements, to achieve temperature gradient utilization. At the same time, an auxiliary heat source is used in the solar collector module to prevent the temperature of the hot water from not meeting the requirements, and the hot water can also be used for domestic water equipment. At the same time, in the circulation loop formed by the cooling tower and the fourth circulating water pump provided by the present invention, the cooling water first passes through the water-solution heat exchanger with a lower temperature, then passes through the absorber with a higher temperature, and finally passes through the condenser with a higher temperature, The equipment is cooled in sequence to achieve a gradient utilization of temperature.

The absorption refrigeration module provided by the present invention adopts the capillary radiation air conditioner end, and the energy transfer between the capillary radiation air conditioner end and the surface of the human body and indoor furniture is mainly carried out by means of radiation. The temperature change range of the air conditioner end is small, so that the heat Comfort is high. At the same time, the capillary radiant air conditioner has a large heat exchange area at the end, high heat exchange efficiency, simple structure, flexible installation, long service life, and good building energy saving effect.

The solution dehumidification module provided by the present invention is provided with a total heat exchanger, and the outdoor fresh air with a higher temperature and the return air of the user's room with a lower temperature are heat-recovered in the total heat exchanger, thereby reducing the cooling load of the user's room. The return air after heat recovery is still relatively dry, and has better moisture absorption capacity than outdoor fresh air. Mixing it with outdoor fresh air and sending it to the regenerator can improve the regeneration efficiency of the regenerator. In addition, a solution heat exchanger is arranged in the solution circulation loop of the regenerator and the dehumidifier, which not only reduces the heat required for the regeneration process and the cooling capacity required for the dehumidification process, but also improves the overall efficiency of the solution dehumidification module.

Description of drawings:

1 is a schematic diagram of the structure of a solar-driven temperature and humidity independent control air-conditioning system provided by the present invention;

FIG. 2 is a schematic structural diagram of a solar collector module of a solar-driven temperature-humidity independent control air-conditioning system provided by the present invention;

3 is a schematic structural diagram of an absorption refrigeration module of a solar-driven temperature and humidity independent control air conditioning system provided by the present invention;

4 is a schematic structural diagram of a solution dehumidification module of a solar-driven temperature and humidity independent control air conditioning system provided by the present invention;

FIG. 5 is a schematic structural diagram of the domestic water module of the solar-driven temperature and humidity independent control air-conditioning system provided by the present invention.

In the figure: 1 is the vacuum tube solar collector, 2 is the hot water storage tank, 3 is the first circulating water pump, 4 is the auxiliary heat source, 5 is the second circulating water pump, 6 is the generator, 7 is the condenser, and 8 is the expansion Valve, 9 is the evaporator, 10 is the absorber, 11 is the first solution heat exchanger, 12 is the first solution pump, 13 is the water separator, 14 is the water collector, 15 is the third circulating water pump, and 16 is the capillary tube At the end of the radiant air conditioner, 17 is the fourth circulating water pump, 18 is the cooling tower, 19 is the regenerator, 20 is the exhaust fan, 21 is the first water-solution heat exchanger, 22 is the second solution pump, and 23 is the second solution heat exchanger The exchanger, 24 is a dehumidifier, 25 is a blower, 26 is a second water-solution heat exchanger, 27 is a third solution pump, 28 is a total heat exchanger, 29 is a mixing bellows, and 30 is a domestic water equipment.

Detailed ways:

The present invention will be further described in detail below in conjunction with the accompanying drawings.

The general idea of the present invention is as follows: the absorption refrigeration module is used to control the temperature of the user's room, and the solution dehumidification module is used to control the humidity of the user's room. , The solution circulation loop, water circulation loop, and air supply and return pipelines of the air conditioning system all take into account the utilization of temperature gradients and heat recovery, which in turn improves the level of building energy conservation. In order to describe the technical content, structure and purpose of the present invention in detail, a specific introduction is given below with reference to the accompanying drawings.

As shown in FIG. 1 , the solar-driven temperature and humidity independent control air-conditioning system provided by the present invention includes a solar heat collection module, an absorption refrigeration module, a solution dehumidification module and a domestic water module; wherein, the solar heat collection module includes vacuum tube solar heat collection 1, hot water storage tank 2, first circulating water pump 3, auxiliary heat source 4 and second circulating water pump 5. The structure of the solar heat collection module is as follows: the vacuum tube solar heat collector 1, the first circulating water pump 3 and the hot water storage tank 2 are connected in sequence to form a circulation loop, and the medium of the circulation loop is water. The hot water storage tank 2, the auxiliary heat source 4 and the second circulating water pump 5 are connected by pipelines in sequence to form a circulation loop. The medium of the circulation loop is water. The circulation loop passes through the generator 6 first, and then passes through the first water-solution heat exchanger. 21. Form gradient heat utilization. Among them, there is a baffle plate in the middle of the hot water storage tank 2, and there is a gap on one side of the baffle plate.

The absorption refrigeration module includes a generator 6, a condenser 7, an expansion valve 8, an evaporator 9, an absorber 10, a first solution heat exchanger 11, a first solution pump 12, a water separator 13, a water collector 14, a first solution The third circulating water pump 15 , the capillary radiation air conditioner terminal 16 , the fourth circulating water pump 17 and the cooling tower 18 . The structure of the absorption refrigeration module is as follows: the generator 6, the first solution heat exchanger 11, the absorber 10 and the first solution pump 12 are connected in sequence to form a solution circulation loop, and the medium of the circulation loop is lithium bromide solution. The generator 6, the condenser 7, the expansion valve 8, and the evaporator 9 are connected to the absorber 10 by pipelines in sequence, and the medium of the pipeline is water or water vapor. The evaporator 9, the third circulating water pump 15, the water separator 13, the capillary radiant air conditioner end 16 and the water collector 14 are connected in sequence to form a circulation loop, and the medium of the circulation loop is water. The cooling tower 18 is connected with the fourth circulating water pump 17 to form a circulating loop. The medium of the circulating loop is water. The circulating loop passes through the second water-solution heat exchanger 26, the absorber 10 and the condenser 7 in turn to form a gradient heat utilization.

The solution dehumidification module includes a regenerator 19, an exhaust fan 20, a first water-solution heat exchanger 21, a second solution pump 22, a second solution heat exchanger 23, a dehumidifier 24, a blower 25, and a second water-solution heat exchange 26 , the third solution pump 27 , the total heat exchanger 28 and the mixing bellows 29 . The structure of the solution dehumidification module is: the regenerator 19, the second solution heat exchanger 23, the third solution pump 27, the second water-solution heat exchanger 26, the dehumidifier 24, the second solution pump 22 and the first water-solution heat exchanger The exchangers 21 are connected with pipelines in sequence to form a solution circulation loop, and the medium of the circulation loop is lithium bromide solution. The second solution heat exchanger 23 performs heat exchange between the low temperature solution and the high temperature solution in the circulation loop, that is, heat recovery. A total heat exchanger 28 is arranged on the front side of the dehumidifier 24, the outdoor fresh air recovers heat from the return air of the user's room, and a blower 25 is arranged on the rear side of the dehumidifier 24 to provide the driving force for blowing air. A mixing bellows 29 is arranged on the front side of the regenerator 19, and the outdoor fresh air and the return air of the user room are mixed and then enter the regenerator 19.

The domestic water module includes one or more domestic water devices 30, and the domestic water devices 30 are connected to the upper part of the hot water storage tank 2 through pipes, and can directly obtain hot water.

As can be seen from FIG. 1 , the solar-driven temperature and humidity independent control air conditioning system provided by the present invention mainly consists of four sub-workflows of solar heat collection module, absorption refrigeration module, solution dehumidification module and domestic water equipment 30 .

It can be seen from Figure 1 and Figure 2 that the working process of the solar heat collector module is: the vacuum tube solar collector 1 absorbs solar radiation, the water inside the collector is heated, and the hot water flows into the storage tank under the action of the first circulating water pump 3. The upper part of the hot water tank 2 flows out from the upper part of the hot water storage tank 2 and passes through the auxiliary heat source 4 first. The water passes through the generator 6 again, and after heating the lithium bromide solution in the generator 6, the temperature of the hot water drops to about 75 degrees, and then passes through the first water-solution heat exchanger 21 to heat the water in the first water-solution heat exchanger 21. After the lithium bromide solution, the temperature of the hot water drops to about 65 degrees, and finally returns to the lower part of the hot water storage tank 2, and the high-temperature hot water gradually plays a heating role, that is, the temperature gradient is utilized. Under the action of the first circulating water pump 3, the hot water in the lower part of the hot water storage tank 2 is returned to the vacuum tube solar heat collector 1 to be heated again. There is a partition in the middle of the hot water storage tank 2 to avoid rapid mixing of hot water and backflowing hot water, and there is a gap on one side of the partition. water circulation loop.

It can be seen from Figures 1 and 3 that the working process of the absorption refrigeration module is: water evaporates in the low pressure environment of the evaporator 9, thereby absorbing a large amount of heat, and the lithium bromide solution in the absorber 10 continuously absorbs the water vapor in the evaporator 9. , becomes a dilute solution, the dilute solution flows into the generator 6 under the action of the first solution pump 12, the generator 6 is heated by the solar heat collecting module, the dilute solution is continuously concentrated into a concentrated solution, and the concentrated solution passes through the first solution heat exchanger 11 Exchange heat with the dilute solution to cool down, that is, heat recovery, and then return to the absorber 10. The high-temperature water vapor generated by the concentrated solution in the generator 6 enters the condenser 7, and is condensed into water in a high-pressure environment. The high-pressure condensed water passes through the expansion valve 8 and the pressure is reduced, and finally returns to the low-pressure evaporator 9 to evaporate into water vapor again. . Under the action of the fourth circulating water pump 17, the cooling water in the cooling tower 18 first passes through the second water-solution heat exchanger 26, after cooling the lithium bromide dehumidifying solution inside, the temperature rises by about 3 degrees, and then passes through the absorber 10, After absorbing the heat generated in the absorber 10, the temperature rises by about 3 degrees, and finally passes through the condenser 7, absorbs the high-temperature heat released by the condensation process, and then returns to the cooling tower 18, and the low-temperature cooling water gradually plays a cooling role, that is, the temperature increases. Gradient utilization. Under the action of the third circulating water pump 15, the cold water in the water collector 14 is first cooled by the evaporator 9, and then the chilled water enters the water separator 13, and is branched to each capillary radiant air conditioner terminal 16 through the water separator 13 to control the user. The temperature of the room (sensible heat load). Compared to traditional compression air conditioning systems, this system only requires colder water at a higher temperature, which can improve the efficiency of the refrigeration system.

It can be seen from Figures 1 and 4 that the working process of the solution dehumidification module is as follows: the outdoor fresh air with a higher temperature passes through the total heat exchanger 28, and exchanges heat with the low-temperature return air in the user's room, and the outdoor fresh air enters the dehumidifier 24 after the temperature is lowered. The water vapor in the outdoor fresh air is absorbed by the lithium bromide solution, and under the action of the blower 25, the dehumidified fresh air is sent into the user's room to control the humidity (latent heat load) of the user's room. The concentration of the dehumidified lithium bromide solution decreases. Under the action of the second solution pump 22, it first passes through the second solution heat exchanger 23, exchanges heat with the high-temperature solution flowing out of the regenerator 19, and then heats up, and then flows into the first water-solution After being heated up in the heat exchanger 21 , it enters the regenerator 19 . The dry return air after heat exchange with the outdoor fresh air is mixed with the outdoor fresh air in the mixing bellows 29, and then enters the regenerator 19 to absorb the water vapor evaporated by the heated lithium bromide solution, and the high temperature and high humidity air is under the action of the exhaust fan 20. , out to the outside. Under the action of the third solution pump 27, the lithium bromide solution with higher concentration in the regenerator 19 first passes through the second solution heat exchanger 23 and then cools down, and then enters the second water-solution heat exchanger 26 to be cooled, and finally reaches a high concentration. The lithium bromide solution with low concentration and low concentration enters the dehumidifier 24 again to dehumidify the outdoor fresh air.

It can be seen from FIG. 1 and FIG. 5 that the working process of the domestic water equipment 30 is as follows: the domestic water equipment 30 is connected to the upper part of the hot water storage tank 2 through pipes. When hot water needs to be used, the domestic water equipment 30 can be turned on, and the domestic water equipment 30 can be one device or multiple devices.

Claims (5)

1. A solar-driven temperature-humidity independent control air-conditioning system, characterized in that, comprising a solar collector module, an absorption refrigeration module, a solution dehumidification module and a domestic water module; wherein, The solar heat collecting module comprises a vacuum tube solar heat collector (1), a hot water storage tank (2), a first circulating water pump (3), an auxiliary heat source (4) and a second circulating water pump (5); The absorption refrigeration module comprises a generator (6), a condenser (7), an expansion valve (8), an evaporator (9), an absorber (10), a first solution heat exchanger (11), a first solution pump ( 12), a water separator (13), a water collector (14), a third circulating water pump (15), a capillary radiant air conditioner terminal (16), a fourth circulating water pump (17) and a cooling tower (18); The solution dehumidification module includes a regenerator (19), an exhaust fan (20), a first water-solution heat exchanger (21), a second solution pump (22), a second solution heat exchanger (23), and a dehumidifier (24) ), blower (25), second water-solution heat exchanger (26), third solution pump (27), total heat exchanger (28) and mixing bellows (29); The vacuum tube solar heat collector (1), the first circulating water pump (3) and the hot water storage tank (2) are sequentially connected by pipelines to form a circulation loop, and the medium of the circulation loop is water; the hot water storage tank (2), the auxiliary The heat source (4) and the second circulating water pump (5) are sequentially connected by pipelines to form a circulating loop, the medium of the circulating loop is water, the circulating loop first passes through the generator (6), and then passes through the first water-solution heat exchanger (21), forming gradient heat utilization; wherein, there is a clapboard in the middle of the hot water storage tank (2), and there is a gap on one side of the clapboard; The generator (6), the first solution heat exchanger (11), the absorber (10) and the first solution pump (12) are connected in sequence to form a solution circulation loop, and the medium of the circulation loop is a lithium bromide solution; the generator (6) ), the condenser (7), the expansion valve (8), the evaporator (9) and the absorber (10) are connected by pipelines in sequence, and the medium of the pipeline is water or water vapor; the evaporator (9), the third circulating water pump ( 15), the water separator (13), the capillary radiant air conditioner end (16) and the water collector (14) are connected by pipelines in sequence to form a circulation loop, and the medium of the circulation loop is water; the cooling tower (18) and the fourth circulating water pump (17) ) is connected to form a circulation loop, the medium of the circulation loop is water, and the circulation loop passes through the second water-solution heat exchanger (26), the absorber (10) and the condenser (7) successively to form a gradient heat utilization; a regenerator (19), a second solution heat exchanger (23), a third solution pump (27), a second water-solution heat exchanger (26), a dehumidifier (24), a second solution pump (22) and The first water-solution heat exchanger (21) is successively connected by pipelines to form a solution circulation loop, and the medium of the circulation loop is a lithium bromide solution; Heat recovery; a total heat exchanger (28) is arranged on the front side of the dehumidifier (24), the outdoor fresh air performs heat recovery on the return air of the user's room, and a blower (25) is arranged on the rear side of the dehumidifier (24) to provide the driving force for the air supply; A mixing bellows (29) is arranged on the front side of the regenerator (19), the outdoor fresh air and the return air of the user room are mixed and then enter the regenerator (19), and an exhaust fan (20) is arranged on the rear side of the regenerator (19) to provide a driving force for the exhaust air ; The domestic water module is connected to the upper part of the hot water storage tank (2) through pipes. 2. A solar-driven air-conditioning system for independent temperature and humidity control according to claim 1, wherein the domestic water module comprises one or more domestic water equipment (30), and the domestic water equipment (30) is connected to the The upper part of the hot water storage tank (2) can directly obtain hot water. 3. A solar-powered temperature-humidity independent control air-conditioning system according to claim 1, characterized in that, during operation, the vacuum tube solar collector (1) in the solar collector module absorbs solar radiation, and the The water is heated, and the hot water flows into the upper part of the hot water storage tank (2) under the action of the first circulating water pump (3), and then flows out from the upper part of the hot water storage tank (2), first through the auxiliary heat source (4), When the temperature of the hot water flowing out from the upper part of the hot water storage tank (2) is lower than 90 degrees, the auxiliary heat source (4) turns on the heating function, and the hot water passes through the generator (6) to heat the lithium bromide solution in the generator (6). , the temperature of the hot water is reduced to about 75 degrees, and then through the first water-solution heat exchanger (21), after heating the lithium bromide solution in the first water-solution heat exchanger (21), the temperature of the hot water is reduced to 65 degrees, Finally, it returns to the lower part of the hot water storage tank (2), and the high-temperature hot water gradually plays a heating role, that is, the temperature gradient is utilized; It returns to the vacuum tube solar collector (1) again to be heated; the hot water storage tank (2) is provided with a partition in the middle to avoid rapid mixing of hot water with the returning hot water. (4) When the vacuum tube solar heat collector (1) is not in operation, a hot water circulation loop can still be formed. 4. A solar-driven temperature and humidity independent control air-conditioning system according to claim 1, characterized in that, during operation, the water in the absorption refrigeration module evaporates in the low-pressure environment of the evaporator (9), thereby absorbing a large amount of water. Heat, the lithium bromide solution in the absorber (10) continuously absorbs the water vapor in the evaporator (9) to become a dilute solution, and the dilute solution flows into the generator (6) under the action of the first solution pump (12), and the generator (6) heated by the solar heat collecting module, the dilute solution is continuously concentrated into a concentrated solution, and the concentrated solution passes through the first solution heat exchanger (11) to exchange heat with the dilute solution to cool down, that is, heat recovery, and then return to the absorber (10) The high-temperature water vapor produced by the concentrated solution in the generator (6) enters the condenser (7), is condensed into water in a high-pressure environment, and the pressure of the high-pressure condensed water decreases after passing through the expansion valve (8), and finally returns to the low-pressure evaporator (9) is evaporated into water vapor again; under the action of the fourth circulating water pump (17), the cooling water in the cooling tower (18) first passes through the second water-solution heat exchanger (26) to cool the internal lithium bromide and dehumidify After the solution, the temperature rises by 3 degrees, and then passes through the absorber (10), after absorbing the heat generated in the absorber (10), the temperature rises by 3 degrees, and finally passes through the condenser (7) to absorb the high temperature released by the condensation process. After the heat is returned to the cooling tower (18), the low-temperature cooling water gradually plays a cooling role, that is, the temperature gradient is utilized; the cold water in the water collector (14) first passes through the evaporator (15) under the action of the third circulating water pump (15). 9) After being cooled, the chilled water enters the water separator (13), and is branched to each capillary radiant air conditioner terminal (16) through the water separator (13) to control the temperature of the user's room. 5. A solar-powered air-conditioning system for independent temperature and humidity control according to claim 1, characterized in that, during operation, the outdoor fresh air with a higher temperature in the solution dehumidification module passes through the total heat exchanger (28), and communicates with the user's room. The low-temperature return air is used for heat exchange. After the temperature of the outdoor fresh air is lowered, it enters the dehumidifier (24), and the water vapor in the outdoor fresh air is absorbed by the lithium bromide solution. Control the humidity of the user's room; the concentration of the dehumidified lithium bromide solution is reduced, and under the action of the second solution pump (22), it first passes through the second solution heat exchanger (23), and carries out the high-temperature solution flowing out from the regenerator (19). After the heat exchange, the temperature rises, and then flows into the first water-solution heat exchanger (21) to be heated and heated, and then enters the regenerator (19); After the outdoor fresh air is mixed, it enters the regenerator (19) to absorb the water vapor evaporated by the heated lithium bromide solution, and the high-temperature and high-humidity air is discharged to the outdoors under the action of the exhaust fan (20); the concentration in the regenerator (19) Under the action of the third solution pump (27), the higher lithium bromide solution first passes through the second solution heat exchanger (23) and then cools down, and then enters the second water-solution heat exchanger (26) to be cooled, and finally The high-concentration and low-temperature lithium bromide solution enters the dehumidifier (24) again to dehumidify the outdoor fresh air.