CN106594938A - Solar air conditioning system - Google Patents

Abstract

The invention discloses a solar air conditioning system. The solar air conditioning system comprises a cold water storage pond, a cold water unit and a cooling tower, wherein the cold water storage pond is used for storing cold water, the cold water storage pond is an insulating cold water pond arranged on a building, and the cold water storage pond is connected to a water cycle loop of a cold supply terminal; a water inlet of the cold water unit is connected to a water outlet of the cold water storage pond though a freezing water pump and a first electromagnetic valve, and a water outlet of the cold water unit is connected to a water inlet of the cold water storage and through a second electromagnetic valve; the cold water unit is further connected to a heat storage device; a high-temperature water outlet of the cold water unit is connected to a water inlet of the cooling tower through a fifth electromagnetic valve, a high-temperature water return opening of the cold water unit is connected to a water outlet of the cooling tower through a sixth electromagnetic valve, and a cooling water pump is further arranged on a path, connecting to the cooling tower, of the cold water unit. The solar air conditioning system disclosed by the invention can realize building integration by virtue of the insulating water pond which is arranged on the building for storing freezing water, so that the artistic and windproof problems of the building floors can be solved, and the service life of the system can be further prolonged.

Description

A solar air conditioning system

technical field

The invention relates to the technical field of air conditioning equipment, and more specifically, relates to a solar air conditioning system.

Background technique

At present, the application of solar water heating and air conditioning is basically after the building is completed, followed by subsequent installation according to the design drawings and other information. Most of the storage of hot water and air conditioning chilled water are insulated water tanks, which will cause unsightly appearance on the building floor and Wind and other issues. In addition, the current water-cooled and cold-water central air-conditioning system has the following significant disadvantages: First, regardless of the number of rooms using air-conditioning, solar water heating and air-conditioning units need to be turned on and running, resulting in large power consumption and other problems. Second, the above-mentioned units are turned on around the clock, resulting in a relatively low cooling coefficient; third, the temperature of the chilled water is low. Usually, the temperature of the chilled water is maintained at around 7°C. In a low-temperature environment, the unit may not operate smoothly. The problem.

To sum up, how to provide a solar air-conditioning system with a long service life is an urgent problem to be solved by those skilled in the art.

Contents of the invention

In view of this, the object of the present invention is to provide a solar air-conditioning system with long service life and high working efficiency.

In order to achieve the above object, the present invention provides the following technical solutions:

A solar air conditioning system, comprising:

A cold water storage pool for storing cold water, the cold water storage pool is an insulated cold water pool installed on a building, and the cold water storage pool is connected to the water circulation loop of the cooling supply terminal;

A water chiller, the water inlet of the chiller is connected to the water outlet of the cold storage tank through a chilled water pump and the first electromagnetic valve, and the water outlet of the chiller is connected to the water inlet of the cold water storage tank through a second electromagnetic valve; The chiller is also connected to the heat storage device;

A cooling tower connected to the chiller, the high-temperature water outlet of the chiller is connected to the water inlet of the cooling tower through a fifth solenoid valve, the high-temperature water return port of the chiller is connected to the outlet of the cooling tower The water port is connected through the sixth electromagnetic valve, and a cooling water pump is also provided on the passage connecting the chiller to the cooling tower.

Preferably, the cooling terminal is an infrared radiation cooling terminal, the outlet of the cold water storage pool is connected to the water inlet of the infrared radiation cooling supply terminal through a cooling water pump, and the water inlet of the cold storage pool is connected to the Connect the water outlet of the infrared radiation cooling terminal mentioned above.

Preferably, the heat storage device is a hot water storage pool, and the hot water storage pool is connected to the water circulation loop of the heating terminal;

The high-temperature water outlet of the chiller is connected to the water inlet of the hot water storage pool through the seventh electromagnetic valve, the water return port of the chiller is connected to the water outlet of the hot water pool through the eighth electromagnetic connection, and the water chiller The cooling water pump is also arranged on the passage connecting the hot water storage pool.

Preferably, the outlet of the hot water storage tank is connected to the inlet of the solar thermal collector plate, the inlet of the hot water storage tank is connected to the outlet of the solar thermal collector plate, and the heat supply terminal is a nozzle.

Preferably, the water inlet of the cooling tower is connected to the water outlet of the chiller through the fourth solenoid valve, and the water outlet of the cooling tower is connected to the water inlet of the chiller through the third solenoid valve and the chilled water pump.

Preferably, an adaptive water distributor is arranged in the cold water storage pool.

Preferably, an automatic control device is also included, and the automatic control device is connected with the first solenoid valve, the second solenoid valve, the third solenoid valve, the fourth solenoid valve, the fifth solenoid valve, the sixth solenoid valve, and the seventh solenoid valve The valve is connected to the eighth solenoid valve;

The automatic control device is also connected with the chilled water pump, the cooling water pump and the cooling water pump.

Preferably, the automatic control device is also connected with a light energy sensor for measuring light intensity.

In the solar air-conditioning system provided by the present invention, the thermal insulation pools installed on buildings to store frozen water can be used, and the unit can be started to run during the lowest temperature period of the day, and the cold energy can be stored in the frozen water pool, which can improve the cooling efficiency by 30 %. The solar air-conditioning system replaces the thermal insulation water tank in the prior art with a thermal insulation pool made of building materials to realize building integration. It can not only solve the problem of aesthetics and windproof on the building floor, but also prolong the service life of the system.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings that are required in the description of the embodiments or the prior art. Apparently, the drawings in the following description are only embodiments of the present invention, and those skilled in the art can obtain other drawings according to the provided drawings without creative efforts.

Fig. 1 is a system connection diagram of a specific embodiment of a solar air conditioning system provided by the present invention.

Reference numerals in Fig. 1 are:

Chiller 1, cold water storage pool 2, cooling tower 3, infrared radiation cooling terminal 4, hot water storage pool 5, solar heat collector plate 6, nozzle 7;

The first solenoid valve 11, the second solenoid valve 12, the third solenoid valve 13, the fourth solenoid valve 14, the fifth solenoid valve 15, the sixth solenoid valve 16, the seventh solenoid valve 17, and the eighth solenoid valve 18;

A chilled water pump 21, a cooling water pump 22, and a cooling water pump 23.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The core of the invention is to provide a solar air-conditioning system with long service life and high working efficiency.

Please refer to FIG. 1 , which is a system connection diagram of a specific embodiment of a solar air-conditioning system provided by the present invention.

A solar air-conditioning system provided by the present invention mainly includes a cold water storage pool 2 , a water chiller 1 and a cooling tower 3 in terms of structural composition.

The cold water storage pool 2 is used to store cold water. Specifically, the cold water storage pool 2 is an insulated cold water pool installed on a building, and the cold water storage pool 2 is connected to the water circulation loop of the cooling supply terminal.

The water inlet of the chiller 1 is connected to the water outlet of the cold storage tank 2 through the chilled water pump 21 and the first solenoid valve 11 , and the water outlet of the chiller 1 is connected to the water inlet of the cold storage tank 2 through the second solenoid valve 12 . The chiller unit 1 is also connected with the heat storage device.

The cooling tower 3 is connected to the chiller 1, the high-temperature water outlet of the chiller 1 is connected to the water inlet of the cooling tower 3 through the fifth solenoid valve 15, and the high-temperature water return port of the chiller 1 is connected to the water outlet of the cooling tower 3 through the sixth The solenoid valve 16 is connected, and a cooling water pump 22 is also arranged on the passage where the water chiller 1 is connected to the cooling tower 3 .

It should be noted that the above-mentioned cold water storage pool 2 is an insulated cold water pool installed on a building, wherein being installed on a building means that the insulated cold water pool is an insulated pool formed of building materials.

The above-mentioned solar air-conditioning system can utilize the heat preservation water pool installed on the building to store frozen water, and can start the unit to run during the lowest temperature period of the day, and store the cold energy in the frozen water pool, which can increase the cooling efficiency by 30%. The application of electric energy during valley hours can cut valleys and flatten peaks, and can also save users 60% of electricity bills. The solar air-conditioning system mainly replaces the thermal insulation water tank in the prior art with a thermal insulation pool made of building materials to realize building integration, which can not only solve the problems of aesthetics and windproof on the building floor, but also prolong the service life of the system.

On the basis of the above-mentioned embodiments, the cooling terminal can be specifically the infrared radiation cooling terminal 4, the water outlet of the cold storage pool 2 is connected to the water inlet of the infrared radiation cooling terminal 4 through the cooling water pump 23, and the cold storage pool 2 The water inlet is connected with the water outlet of the infrared radiation cooling terminal 4.

On the basis of the above embodiments, the heat storage device is a hot water storage pool 5, which is connected to the water circulation loop of the heat supply terminal.

The high-temperature water outlet of the chiller 1 is connected to the water inlet of the hot water storage tank 5 through the seventh solenoid valve 17, the water return port of the chiller 1 is connected to the water outlet of the hot water tank 5 through the eighth solenoid valve 18, and the chiller 1 is connected to the storage tank 5. A cooling water pump 22 is also arranged on the path of the hot water pool 5 .

Optionally, the above-mentioned heat storage device can also be other devices than the hot water storage pool 5, and the energy can be transmitted by any other energy transmission means.

On the basis of the above embodiment, the outlet of the hot water storage tank 5 is connected to the inlet of the solar heat collector 6 , the inlet of the hot water storage tank 5 is connected to the outlet of the solar heat collector 6 , and the heat supply terminal is the nozzle 7 . Optionally, the above-mentioned solar thermal collector plate 6 has various types, and besides the solar energy thermal collector plate 6, it can also be a spiral tubular heat collector or other solar energy conversion devices.

On the basis of any one of the above embodiments, the water inlet of the cooling tower 3 is connected to the water outlet of the chiller 1 through the fourth electromagnetic valve 14, and the water outlet of the cooling tower 3 is connected through the third electromagnetic valve 13 and the chilled water pump 21. Water inlet of chiller 1.

On the basis of any one of the above embodiments, an adaptive water distributor is arranged in the cold water storage pool 2 .

It should be noted that both the cold water storage pool and the hot water storage pool in the solar air-conditioning system mentioned above can be equipped with self-adaptive water distributors, so as to realize the adjustment of water flow control and uniformity of water flow.

On the basis of any one of the above embodiments, an automatic control device is also included, and the automatic control device is connected with the first solenoid valve 11, the second solenoid valve 12, the third solenoid valve 13, the fourth solenoid valve 14, and the fifth solenoid valve 15. , the sixth solenoid valve 16, the seventh solenoid valve 17 and the eighth solenoid valve 18 are connected. In addition, the automatic control device is also connected with the chilled water pump 21 , the cooling water pump 22 and the cooling water pump 23 .

It should be noted that, the first solenoid valve 11, the second solenoid valve 12, the third solenoid valve 13, the fourth solenoid valve 14, the fifth solenoid valve 15, the sixth solenoid valve 16, the seventh solenoid valve 17 and the eighth solenoid valve The electromagnetic valve 18, the chilled water pump 21, the cooling water pump 22, and the cooling water pump 23 can all be components controlled by a computer, or can also be controlled by a common controller.

Optionally, the automatic control device is also connected with a light energy sensor for measuring light intensity. The automatic control device can judge the situation of solar heat collection through the natural light intensity under the current use state obtained by the light energy sensor, so as to realize the control of the unit.

It should be noted that, the above-mentioned method of controlling the solar air-conditioning system by means of a computer or a controller can specifically refer to the following embodiments.

The use process of the above system is as follows: Please refer to Figure 1. When the chiller 1 is running for cooling, the third solenoid valve 13, the fourth solenoid valve 14, the seventh solenoid valve 17, and the eighth solenoid valve 18 are closed, and the temperature in the cold storage pool is relatively low. High chilled water passes through the outlet above the self-adaptive water distributor, and enters the chilled water pump 21 through the first solenoid valve 11, then enters the chiller 1, and enters the second solenoid valve 12 through the outlet below after cooling. And enter the cold storage pool 2 through the entrance below the adaptive water distributor. The cooling water with higher temperature in the chiller 1 enters the fifth solenoid valve 15 through the lower outlet, then enters the cooling tower, and enters the chiller 1 through the cooling water pump through the sixth solenoid valve 16 .

Please refer to Figure 1. When the solar air-conditioning system is in cooling operation, the chilled water at a lower temperature in the cold storage pool 2 flows out from the outlet below it through the self-adaptive water distributor, and enters the cooling water pump 23, and enters through the cooling water pump. 23 into the infrared radiation cooling terminal 4, and then from the infrared radiation cooling terminal 4 through the entrance above the adaptive water distributor, and finally enter the cold storage pool 2.

Please refer to Fig. 1, the lower temperature domestic water in the hot water storage pool 5 flows to the outlet below the hot water storage pool 5 through the self-adaptive water distributor under the effect of thermosiphon, and after being heated in the solar collector plate 6, it is heated by the solar energy. The entrance above the heat collecting plate 6 passes through the adaptive water distributor and finally enters the heat storage tank 5 .

Please refer to Figure 1. When the light energy sensor detects that the current light energy is insufficient, that is, when the sunlight is insufficient and the domestic hot water is preheated on a rainy day, when the chiller 1 is running for cooling, the automatic control device controls the third The solenoid valve 13, the fourth solenoid valve 14, the fifth solenoid valve 15, and the sixth solenoid valve 16 are closed, and the cooling water with a higher temperature in the chiller 1 passes through the self-adaptive water distributor inside and enters the seventh solenoid valve from the outlet below. Solenoid valve 17, and enter the hot water storage pool 5 after passing through the seventh solenoid valve 17, the low-temperature water flowing out from the hot water pool 5 enters the eighth solenoid valve 18, and enters the chiller 1 under the action of the cooling water pump 22 to heat Domestic water to the set temperature.

Please refer to Figure 1. In winter or rainy days, when the sunlight is insufficient and the chiller 1 is running for heating, the first solenoid valve 11, the second solenoid valve 12, the fifth solenoid valve 15, and the sixth solenoid valve 16 are closed. , the chilled water with a lower temperature in the chiller 1 flows out from the lower outlet, enters the cooling tower 3 through the fourth solenoid valve 14, flows out of the cooling tower 3, enters the third solenoid valve 13, and enters the chilled water after passing through the chilled water pump 21 Crew 1. The cooling water with higher temperature in the chiller 1 enters the seventh solenoid valve 17 through the lower outlet, and enters the hot water storage pool 5 after passing through the adaptive water distributor of the hot water storage pool 5, and the water flowing out of the hot water storage pool 5 passes through the eighth solenoid valve 17. The electromagnetic valve 18 and the cooling water pump 21 enter the water chiller 1 again to heat the domestic water to a set temperature.

The solar air-conditioning system provided by the present invention replaces the heat-retaining water tank with a heat-retaining pool made of building materials to realize building integration, which can not only solve the problems of aesthetics and windproof on the building floor, but also prolong the service life of the system.

The solar air-conditioning system is a building-integrated system of solar hot water, radiant cooling, and air-conditioning. It uses heat dissipation to reduce the water temperature to the lowest temperature of the day's environment or lower, and stores it as chilled water. If the water temperature cannot meet the requirements, the chiller 1 further cools it down to obtain the required chilled water, the water temperature of which is higher, and the energy saving can reach 30% to 90%.

The solar air-conditioning system is equipped with the infrared radiation air-conditioning terminal 4, and the required chilled water temperature is relatively high, which is 18-20°C. In summer, it can be used for cooling and cooling, and at the same time, it can be used for bathing; after proper transformation, it can be used for heating in winter. Use diaphragm humidity control to adjust indoor relative humidity to achieve the best condition.

In addition, the above-mentioned system has a high energy efficiency coefficient, is non-polluting to the environment, and can cool down during power grid low periods, saving more than 2/3 of electricity costs, and can achieve good social, economic, and environmental benefits. Using part of the condensed waste heat discharged by the air-conditioning unit during cooling operation to preheat domestic hot water to 37°C can reduce the amount of solar collectors used and reduce the user's one-time investment cost. Using heat pump technology to integrate air conditioning and hot water preparation can improve the utilization rate of equipment and the energy efficiency coefficient of hot water heating process.

Except for the main devices and connections of the solar air-conditioning system provided by the above-mentioned embodiments, please refer to the prior art for the structure of other parts of the solar air-conditioning system, which will not be repeated here.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The solar air conditioning system provided by the present invention has been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention, and the descriptions of the above embodiments are only used to help understand the method and core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (8)

1. A solar air-conditioning system, characterized in that, comprising: A cold water storage pool (2) for storing cold water, the cold water storage pool (2) is an insulated cold water pool installed on a building, and the cold water storage pool (2) is connected to the water circulation loop of the cooling supply terminal; A chiller (1), the water inlet of the chiller (1) is connected to the water outlet of the cold water storage pool (2) through a chilled water pump (21) and a first solenoid valve (11), the chiller (1) The water outlet is connected to the water inlet of the cold water storage pool (2) through the second electromagnetic valve (12); the water chiller (1) is also connected with the heat storage device; A cooling tower (3) connected to the chiller (1), the high-temperature water outlet of the chiller (1) is connected to the water inlet of the cooling tower (3) through the fifth solenoid valve (15), the The high-temperature water return port of the chiller (1) is connected to the water outlet of the cooling tower (3) through the sixth electromagnetic valve (16), and the chiller (1) is connected to the passage of the cooling tower (3) A cooling water pump (22) is also provided. 2. The solar air-conditioning system according to claim 1, characterized in that, the cooling terminal is an infrared radiation cooling terminal (4), and the water outlet of the cold storage pool (2) passes through a cooling water pump (23) It is connected with the water inlet of the infrared radiation cooling terminal (4), and the water inlet of the cold storage pool (2) is connected with the water outlet of the infrared radiation cooling terminal (4). 3. The solar air-conditioning system according to claim 2, characterized in that, the heat storage device is a hot water storage pool (5), and the hot water storage pool (5) is connected to the water circulation circuit of the heating terminal; The high-temperature water outlet of the chiller (1) is connected to the water inlet of the hot water storage tank (5) through the seventh solenoid valve (17), and the water return port of the chiller (1) is connected to the hot water storage tank ( The water outlet of 5) is connected through the eighth solenoid valve (18), and the cooling water pump (22) is also provided on the passage connecting the water chiller (1) to the hot water storage pool (5). 4. The solar air-conditioning system according to claim 3, characterized in that, the outlet of the hot water storage tank (5) is connected to the inlet of the solar collector plate (6), and the inlet of the hot water storage tank (5) is connected to the The outlet of the solar heat collecting plate (6) is connected, and the heat supply terminal is a shower head (7). 5. The solar air-conditioning system according to claim 4, characterized in that, the water inlet of the cooling tower (3) is connected to the water outlet of the chiller (1) through the fourth electromagnetic valve (14); The water outlet of the tower (3) is connected to the water inlet of the chiller (1) through the third electromagnetic valve (13) and the chilled water pump (21). 6. The solar air-conditioning system according to claim 5, characterized in that an adaptive water distributor is arranged in the cold storage pool (2). 7. The solar air-conditioning system according to claim 6, characterized in that, it also comprises an automatic control device, and the automatic control device is connected with the first solenoid valve (11), the second solenoid valve (12), the third solenoid valve Valve (13), fourth solenoid valve (14), fifth solenoid valve (15), sixth solenoid valve (16), seventh solenoid valve (17) and eighth solenoid valve (18) are connected; The automatic control device is also connected with the chilled water pump (21), the cooling water pump (22) and the cooling water pump (23). 8. The solar air-conditioning system according to claim 7, characterized in that, the automatic control device is also connected with a light energy sensor for measuring light intensity.