Solar energy-air energy-cold and heat combined storage air conditioning system

Abstract

The utility model relates to the field of air conditioners, and discloses a solar energy-air energy-cold and heat combined storage air conditioning system which comprises a solar heat collector, an air source heat pump, a fan coil, a heat storage module and a cold storage module. The end, away from the air source heat pump, of the first valve pipe is fixedly connected with a fourteenth valve pipe and a second valve pipe. According to the utility model, solar energy, air energy and an energy storage technology are combined, and intelligent switching of multiple energy modes is carried out through valve control, so that high-efficiency energy-saving control of the air conditioning system can be realized, the burden of a traditional air conditioning system on a power grid is reduced, and meanwhile, the overall operation efficiency and comfort of the system are improved; through flexible valve switching control, the energy utilization efficiency is further improved, the clean energy heating system can guarantee comfortable indoor temperature for users while saving energy and reducing emission, and the requirements of modern society for green, environment-friendly and low-carbon life are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air conditioner, especially a solar energy - air energy - cold and hot storage's air conditioning system. BACKGROUND

[0002] With the increasingly serious global climate change and energy shortage problem, energy saving and emission reduction has become an important direction of global development. The energy consumption of traditional air conditioning system is huge, and mainly depends on power supply, which leads to high energy consumption and large carbon emission. Especially in summer cooling and winter heating, the energy consumption of air conditioning system is usually very high. Therefore, how to use renewable energy, especially solar energy and air energy, to reduce the energy consumption of traditional air conditioning system and improve the comprehensive energy efficiency of the system has become the focus of research and application.

[0003] Single air source heat pump or solar energy system has been widely used, but they have certain limitations in practical application. For example, air source heat pump has low heating performance and low efficiency in winter low temperature condition; while solar energy collector can provide free heat energy by using solar energy, but its energy supply has great intermittency and volatility due to weather, season and sunshine duration. In order to improve the energy utilization efficiency and meet the demand of different seasons, in recent years, the technical scheme combining multiple energy complementary use has gradually become a trend.

[0004] Cold and hot storage technology, as an advanced technology that can store and regulate energy, is gradually applied in air conditioning system. By storing excess heat or cold, and releasing when needed, cold and hot storage system can effectively balance energy supply and demand fluctuation and improve the stability of system operation. However, the existing cold and hot storage system mainly depends on single energy form, such as pure use of air source heat pump or traditional energy storage device, which cannot fully utilize the advantages of multiple renewable energy complementary.

[0005] In view of the above problems, the field urgently needs an air conditioning system that can combine multiple energy complementary, intelligent regulation and cold and hot storage technology. Through reasonable energy allocation, solar energy and air energy, two kinds of renewable energy, can be maximized in different seasons and climate conditions, reducing the dependence on traditional electricity, improving energy use efficiency, and ensuring the efficient and stable operation of the system.

[0006] Therefore, the person skilled in the art provides a solar energy-air energy-cold and hot storage air conditioning system to solve the problems in the background art. CONTENT OF THE UTILITY MODEL

[0007] The utility model discloses a solar energy - air energy - cold and hot storage's air conditioning system, through the intelligent switching of the combination of solar energy, air energy and energy storage technology and the valve control of multiple energy modes, can realize the efficient energy - saving control of air conditioning system, reduces the burden of traditional air conditioning system to power grid, improves the operation efficiency and comfort degree of system whole simultaneously, is especially applicable to the area needing long - term operation, has remarkable energy - saving and environmental protection effect.

[0008] In order to realize the above -mentioned purpose, the utility model provides the following technical scheme:

[0009] A solar energy - air energy - cold and hot storage's air conditioning system, including solar energy collector, air source heat pump, fan - coil, heat storage module, cold storage module, the output of air source heat pump is connected with first valve pipe fixedly, the one end of first valve pipe away from air source heat pump is connected with fourteenth valve pipe and second valve pipe fixedly respectively, the one end of fourteenth valve pipe away from first valve pipe is connected with sixth valve pipe fixedly, the input of air source heat pump is connected with eleventh valve pipe fixedly, the one end of eleventh valve pipe away from air source heat pump is connected with nineteenth valve pipe fixedly, the one end of nineteenth valve pipe away from eleventh valve pipe is connected with third valve pipe fixedly,

[0010] The output of fan - coil is connected with seventh valve pipe fixedly, the one end of seventh valve pipe away from fan - coil is connected with eighth valve pipe fixedly, the one end of eighth valve pipe away from seventh valve pipe is connected with ninth valve pipe fixedly, the one end of ninth valve pipe away from eighth valve pipe is connected with tenth valve pipe fixedly, the output of heat storage module is connected with fourth valve pipe fixedly, the one end of fourth valve pipe away from heat storage module is connected with fifth valve pipe fixedly, the pipe body of fifth valve pipe is connected with twentieth valve pipe, the one end of twentieth valve pipe pipe body away from fifth valve pipe is connected with sixteenth valve pipe, the one end of sixteenth valve pipe away from twentieth valve pipe is connected with seventeenth valve pipe, buffer water tank, eighteenth valve pipe in proper order, the output of cold storage module is connected with twelfth valve pipe fixedly, the input of cold storage module is connected with thirteenth valve pipe fixedly, the output of solar energy collector is connected with fifteenth valve pipe fixedly,

[0011] By the above technical solution, by combining solar energy, air energy and energy storage technology and through valve control to intelligently switch multiple energy modes, efficient energy-saving control of the air conditioning system can be realized, the burden of the traditional air conditioning system on the power grid is reduced, and the overall operation efficiency and comfort of the system are improved, which is especially suitable for areas that need long-term operation and has significant energy-saving and environmental protection effects. Through flexible valve switching control, users can adjust the operation mode of the air conditioning system at any time according to different seasons and use requirements, maximize the use of solar energy and air energy resources, and achieve the best energy utilization efficiency.

[0012] Further, the fifteenth valve pipe is connected through the nineteenth valve pipe, and the second valve pipe is connected through the nineteenth valve pipe.

[0013] Through the above technical solution, on the basis of solar energy and air energy complementary technology, an innovative solar energy-air energy-cold and heat storage air conditioning system is provided. The system comprehensively utilizes the clean energy advantages of solar energy and air energy, uses efficient energy storage and conversion devices to ensure that the air conditioning system can stably and efficiently operate under different climate conditions.

[0014] Further, the twentieth valve pipe is connected through the eighth valve pipe, and the sixteenth valve pipe is connected through the twentieth valve pipe.

[0015] Through the above technical solution, the medium can flow into the eighth valve pipe and the sixteenth valve pipe through the twentieth valve pipe.

[0016] Further, the twelfth valve pipe is connected through the fourth valve pipe, and the thirteenth valve pipe is connected through the third valve pipe.

[0017] Through the above technical solution, the medium can flow through the fifth valve pipe through the twelfth valve pipe, and the medium can flow into the cold storage module through the thirteenth valve pipe.

[0018] Further, the fifth valve pipe is connected through the sixth valve pipe, and the tenth valve pipe is connected through the eleventh valve pipe.

[0019] Through the above technical solution, the medium can flow into the fan coil through the fifth valve pipe, and the medium can flow into the air source heat pump through the tenth valve pipe.

[0020] Further, the eighteenth valve pipe is fixedly connected to the input end of the solar energy collector.

[0021] Through the above technical solution, the medium can flow into the solar energy collector through the eighteenth valve pipe.

[0022] Further, the sixth valve pipe is fixedly connected to the input end of the fan coil.

[0023] Through the sixth valve pipe, the medium can be output by the fan coil.

[0024] Further, the third valve pipe is fixedly connected to the input end of the cold storage module.

[0025] Through the above technical scheme, the medium can flow into the cold storage module through the third valve pipe.

[0026] The utility model has the following beneficial effects:

[0027] 1. The solar energy-air energy-cold and heat storage air conditioning system disclosed by the utility model realizes efficient energy-saving control of the air conditioning system, reduces the burden of the traditional air conditioning system on the power grid, improves the overall operation efficiency and comfort of the system, and is particularly suitable for areas that need to be operated for a long time, and has remarkable energy-saving and environmental protection effects. Through flexible valve switching control, users can adjust the operation mode of the air conditioning system at any time according to different seasons and use requirements, maximize the use of solar energy and air energy resources, and realize the best energy utilization efficiency.

[0028] 2. The solar energy-air energy-cold and heat storage air conditioning system disclosed by the utility model provides an innovative solar energy-air energy-cold and heat storage air conditioning system on the basis of the solar energy and air energy complementary technology. The system comprehensively utilizes the clean energy advantages of solar energy and air energy, adopts efficient energy storage and conversion devices, ensures that the air conditioning system can stably and efficiently operate under different climate conditions, further improves the energy utilization efficiency, and makes the clean energy heating system not only save energy and reduce emissions, but also guarantee the comfortable indoor temperature of users, and meets the demand of modern society for green and environmental protection and low-carbon life. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The utility model discloses a kind of solar energy-air energy-cold and heat storage air conditioning system line diagram proposed by the utility model;

[0030] Figure 2 The utility model discloses a kind of solar energy-air energy-cold and heat storage air conditioning system operation line schematic diagram proposed by the utility model;

[0031] Figure 3 The utility model discloses a kind of solar energy-air energy-cold and heat storage air conditioning system fan coil operation line schematic diagram proposed by the utility model;

[0032] Figure 4 The utility model discloses a kind of solar energy-air energy-cold and heat storage air conditioning system air source heat pump operation line schematic diagram proposed by the utility model;

[0033] Figure 5 This is a schematic diagram of the solar thermal collection, storage, and heating operation circuit in an air conditioning system based on solar energy, air energy, and combined cooling and heating systems proposed in this utility model.

[0034] Legend:

[0035] 1. First valve pipe; 2. Second valve pipe; 3. Third valve pipe; 4. Fourth valve pipe; 5. Fifth valve pipe; 6. Sixth valve pipe; 7. Seventh valve pipe; 8. Eighth valve pipe; 9. Ninth valve pipe; 10. Tenth valve pipe; 11. Eleventh valve pipe; 12. Twelfth valve pipe; 13. Thirteenth valve pipe; 14. Fourteenth valve pipe; 15. Fifteenth valve pipe; 16. Sixteenth valve pipe; 17. Seventeenth valve pipe; 18. Eighteenth valve pipe; 19. Nineteenth valve pipe; 20. Twentieth valve pipe; 21. Solar collector; 22. Air source heat pump; 23. Fan coil unit; 24. Thermal storage module; 25. Cold storage module; 26. Buffer water tank. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1:

[0038] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides a solar-air-energy-cooling-heating combined storage air conditioning system, including a solar collector 21, an air source heat pump 22, a fan coil unit 23, a heat storage module 24, and a cold storage module 25. The output end of the air source heat pump 22 is fixedly connected to a first valve pipe 1. The end of the first valve pipe 1 away from the air source heat pump 22 is fixedly connected to a fourteenth valve pipe 14 and a second valve pipe 2. The end of the fourteenth valve pipe 14 away from the first valve pipe 1 is fixedly connected to a sixth valve pipe 6. The input end of the air source heat pump 22 is fixedly connected to an eleventh valve pipe 11. The end of the eleventh valve pipe 11 away from the air source heat pump 22 is fixedly connected to a nineteenth valve pipe 19. The end of the nineteenth valve pipe 19 away from the eleventh valve pipe 11 is fixedly connected to a third valve pipe 3.

[0039] The output end of the fan coil 23 is fixedly connected with the seventh valve pipe 7, the end of the seventh valve pipe 7 away from the fan coil 23 is fixedly connected with the eighth valve pipe 8, the end of the eighth valve pipe 8 away from the seventh valve pipe 7 is fixedly connected with the ninth valve pipe 9, the end of the ninth valve pipe 9 away from the eighth valve pipe 8 is fixedly connected with the tenth valve pipe 10, the output end of the heat storage module 24 is fixedly connected with the fourth valve pipe 4, the end of the fourth valve pipe 4 away from the heat storage module 24 is fixedly connected with the fifth valve pipe 5, the pipe body of the fifth valve pipe 5 is throughly connected with the twentieth valve pipe 20, the end of the pipe body of the twentieth valve pipe 20 away from the fifth valve pipe 5 is throughly connected with the sixteenth valve pipe 16, the end of the sixteenth valve pipe 16 away from the twentieth valve pipe 20 is fixedly connected with the seventeenth valve pipe 17, the buffer water tank 26 and the eighteenth valve pipe 18 in sequence, the output end of the cold storage module 25 is fixedly connected with the twelfth valve pipe 12, the input end of the cold storage module 25 is fixedly connected with the thirteenth valve pipe 13, the output end of the solar collector 21 is fixedly connected with the fifteenth valve pipe 15;

[0040] By combining solar energy, air energy and energy storage technology and intelligently switching multiple energy modes through valve control, efficient energy-saving control of the air conditioning system can be realized, the burden on the power grid of traditional air conditioning systems is reduced, and the overall operation efficiency and comfort of the system are improved, which is particularly suitable for areas that need to be operated for a long time and has significant energy-saving and environmental protection effects. Through flexible valve switching control, users can adjust the operation mode of the air conditioning system at any time according to different seasons and use requirements, maximize the use of solar energy and air energy resources, and achieve the best energy utilization efficiency.

[0041] With reference to Figure 1 and Figure 4 , the fifteenth valve pipe 15 and the nineteenth valve pipe 19 are throughly connected, the second valve pipe 2 and the nineteenth valve pipe 19 are throughly connected, on the basis of the complementary technology of solar energy and air energy, an innovative solar-air-energy-cold-heat storage air conditioning system is provided. The system comprehensively utilizes the clean energy advantages of solar energy and air energy, adopts efficient energy storage and conversion devices, ensures that the air conditioning system can stably and efficiently operate under different climate conditions, the twentieth valve pipe 20 and the eighth valve pipe 8 are throughly connected, the sixteenth valve pipe 16 and the twentieth valve pipe 20 are throughly connected, and through the twentieth valve pipe 20, the medium can flow into the eighth valve pipe 8 and the sixteenth valve pipe 16.

[0042] With reference to Figure 1 and Figure 5The twelfth valve pipe 12 is in through connection with the fourth valve pipe 4, the thirteenth valve pipe 13 is in through connection with the third valve pipe 3, the medium can flow into the fifth valve pipe 5 through the twelfth valve pipe 12, the medium can flow into the cold storage module 25 through the thirteenth valve pipe 13, the fifth valve pipe 5 is in through connection with the sixth valve pipe 6, the tenth valve pipe 10 is in through connection with the eleventh valve pipe 11, the medium can flow into the fan coil 23 through the fifth valve pipe 5, the medium can flow into the air source heat pump 22 through the tenth valve pipe 10, the eighteenth valve pipe 18 is fixedly connected to the input end of the solar collector 21, the medium can flow into the solar collector 21 through the eighteenth valve pipe 18, the sixth valve pipe 6 is fixedly connected to the input end of the fan coil 23, the medium can be output through the fan coil 23 through the sixth valve pipe 6, the third valve pipe 3 is fixedly connected to the input end of the cold storage module 25, and the medium can flow into the cold storage module 25 through the third valve pipe 3.

[0043] Embodiment 2

[0044] In this embodiment, a solar-air energy-cold and heat storage air conditioning system is built in a 80 square meter conference room. The system mainly consists of 3 air source heat pumps 22, 6 square meters of solar collector 21, buffer tank 26, cold and heat storage device, fan coil 23, water supply pipeline and return water pipeline. Among them, the heat storage module 24 in the cold and heat storage device is filled with 100 kg of sodium acetate trihydrate / sludge water pyrolysis residue composite phase change heat storage material. This material has good performance, with a phase change temperature of 58℃ and a phase change latent heat of 220kJ / kg.

[0045] In the actual operation of the heat storage stage, the air source heat pump 22 provides heat to the heat storage module 24. When the outdoor temperature is about 5℃, the heat pump coefficient of performance is about 4.0. When the indoor heat is used, the heat storage module 24 releases heat to the fan coil 23 through the internal circulating medium. In order to accurately monitor the energy, heat meters are installed on the supply and return water pipes of the air source heat pump 22 and the heat storage module 24, and related energy storage tests are carried out.

[0046] Through testing, the energy storage module in the system exhibits a series of excellent performance indicators:

[0047] Storage capacity: The storage capacity of the energy storage module reaches 20MJ (1.5kWh of electricity consumption), providing a solid foundation for the energy reserve of the system.

[0048] Actual use of energy: In the actual operation process, the energy released to the fan coil 23 is 18MJ, indicating that the system can effectively convert the stored energy into actual usable energy.

[0049] Energy conversion efficiency: The energy conversion efficiency is calculated to be about 90%, and the overall performance coefficient still reaches 3.6. This high energy conversion efficiency ensures the economic advantage of the thermal storage device in applying the peak-valley electricity price policy.

[0050] Energy density: According to the mass of the filled composite phase change thermal storage material and the storage capacity, the energy density is 200 kJ / kg (20 MJ ÷ 100 kg = 200 kJ / kg), which reflects the high energy storage capacity of the material per unit mass.

[0051] Self-heat release rate: For the cold-heat storage device, after a long period of standing test, the energy loss is about 5% per week. This means that in the case of non-use, the energy loss of the energy storage device is small, and the stored heat can be maintained for a long time to provide stable energy support for subsequent use.

[0052] Thermal cycle life: The self-developed sodium acetate trihydrate / sludge hydrothermal pyrolysis residue composite phase change thermal storage material was tested for its life. After hundreds of charging / discharging cycles, its energy storage capacity can still maintain more than 90% of the initial capacity, showing good cycle stability and durability. This excellent cycle life performance makes the system not need to replace the energy storage device frequently during long-term operation, effectively reducing maintenance costs and resource waste.

[0053] Example 3:

[0054] This example sets up a small solar-air energy-cold-heat storage air conditioning system in an 80 m2 conference room. The system consists of a 3-ton air source heat pump 22, a 6 m2 solar collector 21, a cold-heat storage module, and a fan coil 23. The 80 kg octanoic acid-myristyl alcohol / modified expanded graphite composite phase change cold storage material in the cold storage module 25 has a phase change temperature of 9-11°C and a phase change latent heat of 120 kJ / kg.

[0055] In actual operation, during the charging of cold storage, the air source heat pump 22 provides cold to the cold storage module 25, and during the use of cold, the cold storage module 25 releases heat to the fan coil 23 through the internal circulating medium, thereby realizing the cold-heat storage function of the air conditioning system. To accurately monitor the energy, heat meters are installed on the supply and return water pipes of the air source heat pump 22 and the thermal storage module 24, and related energy storage tests are conducted.

[0056] Through testing, the energy storage module in this system exhibits a series of excellent performance indicators:

[0057] Storage capacity: The storage capacity of the energy storage module reaches 6 MJ;

[0058] Actual use of energy: In actual operation, the actual average use of energy is 5 MJ;

[0059] Energy conversion efficiency: The energy conversion efficiency is about 83% by calculation, reaching the advanced level of energy conversion efficiency of energy storage systems, which can be used for night cold storage and daytime cold release, i.e. economic advantage of peak-valley electricity price.

[0060] Example 4:

[0061] This example uses the solar collector 21, the buffer water tank 26, the heat storage module 24 and the fan coil 23 in the solar-air-energy cold and heat storage module to perform the operation of the solar collector 21 storing heat in the heat storage module 24 and the heat storage module 24 supplying heat. The solar collector in this example is installed on the second floor of the shaded balcony, which affects the heat collection efficiency. In the winter weather with clear and few clouds, the solar collector makes the temperature in the buffer water tank 26 reach 57℃ at least twice a day, so that the water in the buffer water tank 26 is heated to 60℃ by electric auxiliary heating, and then the internal circulation between the water tank and the heat storage module 24 is performed to transfer the heat in the water tank into the heat storage module 24. The process automatically takes heat and stores heat through the opening of the water pump, so as to supply hot air by the fan coil for heating when the conference room is used for meeting. It is tested that the heat storage module 24 can store 27 MJ of heat after the combination of solar energy and electric auxiliary heating, the heat storage module 24 can continuously supply heat to the fan coil 23 for 2-3 h (the temperature of the hot air is about 28-22℃), the released heat can reach 25 MJ, and the energy conversion efficiency is about 90%. According to the calculation of 90 days of sunny days and the use of the conference room in the whole winter, compared with the single air source heat pump 22 system, the annual electricity saving of the system using solar energy and the heat storage module 24 can reach 250 kWh.

[0062] Working principle: The air conditioning system can switch between different working modes through a group of valve pipes, including normally open valve pipes and adjustable valve pipes. The ninth valve pipe 9, the tenth valve pipe 10, the sixteenth valve pipe 16 and the seventeenth valve pipe 17 are normally open, and are closed only when the water pump is repaired. By opening different adjustable valve pipes, switching between different working conditions can be realized.

[0063] Summer cooling:

[0064] Working condition one: air source heat pump 22 cooling mode;

[0065] The first valve pipe 1, the fourteenth valve pipe 1414, the sixth valve pipe 6, the seventh valve pipe 7, the eighth valve pipe 8 and the eleventh valve pipe 11 are opened, and the rest of the adjustable valve pipes are closed. The low-temperature cold water generated by the air source heat pump 22 enters the fan coil 23 from the first valve pipe 1, the fourteenth valve pipe 14 and the sixth valve pipe 6, exchanges heat with indoor air, flows through the seventh valve pipe 7, the eighth valve pipe 8 and the eleventh valve pipe 1111, and returns to the air source heat pump 22, realizing the process of the air source heat pump 22 directly supplying cold air to the fan coil 23.

[0066] Optionally, it also includes:

[0067] Case two: the air source heat pump 22 stores cold for the cold storage module 25;

[0068] The first valve pipe 1, the second valve pipe 2, the thirteenth valve pipe 13, the twelfth valve pipe 12, the twentieth valve pipe 20, and the eleventh valve pipe 11 are opened, and the rest of the adjustable valve pipes are closed. The low-temperature cold water generated by the air source heat pump 22 enters the cold storage module 25 from the first valve pipe 1, the second valve pipe 2, and the thirteenth valve pipe 13. After heat exchange, the low-temperature cold water flows through the twelfth valve pipe 12, the twentieth valve pipe 20, and the eleventh valve pipe 11 and returns to the air source heat pump 22, thereby realizing the process of the air source heat pump 22 storing cold for the cold storage module 25.

[0069] Optionally, the system further comprises:

[0070] Case three: the cold storage module 25 supplies cold for the fan coil 23;

[0071] The twelfth valve pipe 12, the fifth valve pipe 5, the sixth valve pipe 6, the seventh valve pipe 7, the eighth valve pipe 8, the nineteenth valve pipe 19, and the thirteenth valve pipe 13 are opened, and the rest of the adjustable valve pipes are closed. The circulating medium enters the cold storage module 25 through the thirteenth valve pipe 13, becomes low-temperature cold water, enters the fan coil 23 through the twelfth valve pipe 12, the fifth valve pipe 5, and the sixth valve pipe 6, exchanges heat with air, and then returns to the cold storage module 25 through the seventh valve pipe 7, the eighth valve pipe 8, the nineteenth valve pipe 19, and the thirteenth valve pipe 13, thereby realizing the process of the cold storage module 25 supplying cold for the fan coil 23.

[0072] Winter heating:

[0073] Case one: the air source heat pump 22 is in a heating mode;

[0074] The first valve pipe 1, the fourteenth valve pipe 14, the sixth valve pipe 6, the seventh valve pipe 7, the eighth valve pipe 8, and the eleventh valve pipe 11 are opened, and the rest of the adjustable valve pipes are closed. The high-temperature hot water generated by the air source heat pump 22 enters the fan coil 23 from the first valve pipe 1, the fourteenth valve pipe 14, and the sixth valve pipe 6, exchanges heat with indoor air, and then returns to the air source heat pump 22 through the seventh valve pipe 7, the eighth valve pipe 8, and the eleventh valve pipe 11, thereby realizing the process of the air source heat pump 22 directly supplying heat for the fan coil 23.

[0075] Optionally, the system further comprises:

[0076] Case two: the air source heat pump 22 stores heat for the heat storage module 24;

[0077] The first valve pipe 1, the second valve pipe 2, the third valve pipe 3, the fourth valve pipe 4, the twentieth valve pipe 20 and the eleventh valve pipe 11 are opened, and the rest of the adjustable valve pipes are closed. The high-temperature hot water generated by the air source heat pump 22 enters the heat storage module 24 through the first valve pipe 1, the second valve pipe 2 and the third valve pipe 3, and flows back to the air source heat pump 22 through the fourth valve pipe 4, the twentieth valve pipe 20 and the eleventh valve pipe 11 after heat exchange, so that the air source heat pump 22 realizes the heat storage process of the heat storage module 24.

[0078] Optionally, further comprising:

[0079] Case three: the solar collector 21 stores heat for the heat storage module 24;

[0080] The fifteenth valve pipe, the third valve pipe 3, the fourth valve pipe 4, the twentieth valve pipe 20 and the eighteenth valve pipe are opened, and the rest of the adjustable valve pipes are closed. The high-temperature hot water generated by the solar collector 21 enters the heat storage module 24 through the fifteenth valve pipe and the third valve pipe 3, and flows back to the solar collector 21 through the fourth valve pipe 4, the twentieth valve pipe 20, the buffer water tank 26 and the eighteenth valve pipe after heat exchange, so that the solar collector 21 realizes the heat storage process of the heat storage module 24.

[0081] Optionally, further comprising:

[0082] Case four: the heat storage module 24 supplies heat for the fan coil 23;

[0083] The third valve pipe 3, the fourth valve pipe 4, the fifth valve pipe 5, the sixth valve pipe 6, the seventh valve pipe 7, the eighth valve pipe 8 and the nineteenth valve pipe 19 are opened, and the rest of the adjustable valve pipes are closed. The circulating medium enters the cold storage module 25 through the third valve pipe 3, exchanges heat with the cold storage module 25, becomes high-temperature hot water, enters the fan coil 23 through the fourth valve pipe 4, the fifth valve pipe 5 and the sixth valve pipe 6, exchanges heat with air, and then flows back to the heat storage module 24 through the seventh valve pipe 7, the eighth valve pipe 8, the nineteenth valve pipe 19 and the third valve pipe 3, so that the heat storage module 24 realizes the heat supply process of the fan coil 23.

[0084] Finally, it should be noted that the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A solar-air-source heat pump-cooling combined heat and cooling system, comprising a solar collector, an air-source heat pump, a fan coil unit, a thermal storage module, and a cold storage module, characterized in that: The output end of the air source heat pump is fixedly connected to a first valve tube. The end of the first valve tube away from the air source heat pump is fixedly connected to a fourteenth valve tube and a second valve tube. The end of the fourteenth valve tube away from the first valve tube is fixedly connected to a sixth valve tube. The input end of the air source heat pump is fixedly connected to an eleventh valve tube. The end of the eleventh valve tube away from the air source heat pump is fixedly connected to a nineteenth valve tube. The end of the nineteenth valve tube away from the eleventh valve tube is fixedly connected to a third valve tube. The output end of the fan coil unit is fixedly connected to a seventh valve pipe. The end of the seventh valve pipe away from the fan coil unit is fixedly connected to an eighth valve pipe. The end of the eighth valve pipe away from the seventh valve pipe is fixedly connected to a ninth valve pipe. The end of the ninth valve pipe away from the eighth valve pipe is fixedly connected to a tenth valve pipe. The output end of the thermal storage module is fixedly connected to a fourth valve pipe. The end of the fourth valve pipe away from the thermal storage module is fixedly connected to a fifth valve pipe. The body of the fifth valve pipe is connected to a twentieth valve pipe. The end of the twentieth valve pipe away from the fifth valve pipe is connected to a sixteenth valve pipe. The end of the sixteenth valve pipe away from the twentieth valve pipe is sequentially fixedly connected to a seventeenth valve pipe, a buffer water tank, and an eighteenth valve pipe. The output end of the cold storage module is fixedly connected to a twelfth valve pipe. The input end of the cold storage module is fixedly connected to a thirteenth valve pipe. The output end of the solar collector is fixedly connected to a fifteenth valve pipe.

2. The solar-air-energy-combined cooling and heating air conditioning system according to claim 1, characterized in that: The fifteenth valve tube (15) is connected to the nineteenth valve tube (19), and the second valve tube (2) is connected to the nineteenth valve tube (19).

3. The solar-air-energy-combined cooling and heating air conditioning system according to claim 1, characterized in that: The twentieth valve tube (20) is connected to the eighth valve tube (8), and the sixteenth valve tube (16) is connected to the twentieth valve tube (20).

4. The solar-air-energy-combined cooling and heating air conditioning system according to claim 1, characterized in that: The twelfth valve tube (12) is connected to the fourth valve tube (4), and the thirteenth valve tube (13) is connected to the third valve tube (3).

5. The solar-air-energy-combined cooling and heating air conditioning system according to claim 1, characterized in that: The fifth valve tube (5) is connected to the sixth valve tube (6), and the tenth valve tube (10) is connected to the eleventh valve tube (11).

6. The solar-air-energy-combined cooling and heating air conditioning system according to claim 1, characterized in that: The eighteenth valve pipe (18) is fixedly connected to the input end of the solar collector (21).

7. The solar-air-energy-combined cooling and heating air conditioning system according to claim 1, characterized in that: The sixth valve pipe (6) is fixedly connected to the input end of the fan coil unit (23).

8. The solar-air-energy-combined cooling and heating air conditioning system according to claim 1, characterized in that: The third valve tube (3) is fixedly connected to the input end of the cold storage module (25).

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