Solar-driven split type multi-combined-supply central air-conditioning system

Abstract

The utility model discloses a split type multi-combined supply central air-conditioning system driven by solar energy, and belongs to the technical field of cooling and heating equipment. The system comprises a lithium bromide absorption refrigeration type host, a solar heat collector, a refrigeration water tank, a heating water tank, a plate heat exchanger, a fuel cell, a cooling tower, a wall-hanging stove and a fan pipe disc, wherein the lithium bromide absorption refrigeration type main machine absorbs heat energy provided by solar energy through lithium bromide, and the circulation process of refrigeration or heating is completed; water is heated by solar energy absorbed by the solar heat collector and fed into the heating water tank through a pipeline to be heated by the system. The plate heat exchanger is responsible for heat exchange between the lithium bromide absorption refrigeration host and the heating water tank; the fuel cell supplies power to the system, and the wall-hanging stove assists in heating the heating water tank. The cooling tower is used for dissipating heat of the lithium bromide absorption refrigeration host; cold water in the refrigeration water tank is dissipated into a room in an air mode through the fan pipe disc so that the system can conduct refrigeration.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling and heating equipment, and in particular relates to a split-type multi-energy central air-conditioning system driven by solar energy. Background Art

[0002] Current air conditioning systems mostly use compressor cooling, a process that consumes significant amounts of electricity. Consequently, these systems consume a high level of energy during daily operation. Furthermore, the refrigerants used in these systems, such as hydrofluorocarbons (HFCSs), such as Freon, significantly damage the ozone layer and exacerbate the greenhouse effect. Furthermore, these high energy consumption increases the power industry's demand for fossil fuels, exacerbating greenhouse gas emissions. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a solar-driven split-type multi-energy central air-conditioning system, which solves the problems in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A solar-powered split-type polygeneration central air-conditioning system comprising: a lithium bromide absorption refrigeration unit, a solar thermal collector, a refrigeration water tank, a hot water tank, a plate heat exchanger, a fuel cell, a cooling tower, a wall-mounted boiler, and a fan coil;

[0006] Among them, the lithium bromide absorption refrigeration host uses lithium bromide to absorb the heat energy provided by solar energy to complete the cooling or heating cycle; the solar energy absorbed by the solar collector heats the water and is sent to the hot water tank through a pipe for heating the system; the plate heat exchanger is responsible for the heat exchange between the lithium bromide absorption refrigeration host and the hot water tank; the fuel cell provides power for the system, and the wall-mounted boiler assists in heating the hot water tank; the cooling tower dissipates heat for the lithium bromide absorption refrigeration host; the fan tube coil dissipates the cold water temperature in the cooling water tank into the room in the form of air for cooling the system.

[0007] Furthermore, one side of the refrigeration water tank is connected to the fifth water pump through a water pipe, and the fifth water pump is connected to the right end interface of the lithium bromide absorption refrigeration host through a water pipe; the refrigeration water tank includes a first temperature sensor, and the first temperature sensor is connected to the left end interface of the lithium bromide absorption refrigeration host.

[0008] Furthermore, the fan coil is connected to the refrigeration water tank through a sixth water pump and a water pipe.

[0009] Furthermore, the plate heat exchanger is connected to the lithium bromide absorption refrigeration host through a valve and a sleeve, and the plate heat exchanger is connected to the hot water tank through a valve and a pipeline.

[0010] Furthermore, the hot water tank is connected to the lithium bromide absorption refrigeration host through a third water pump, a water pipe and a valve.

[0011] Furthermore, the hot water tank is connected to the solar collector via a first water pump and a water pipe.

[0012] Furthermore, the hot water tank is connected to the wall-mounted boiler through a water pipe and a second water pump.

[0013] Furthermore, the fuel cell is connected to the hot water tank via a line.

[0014] Furthermore, the cooling tower is connected to the lithium bromide absorption refrigeration host through a fourth water pump and a water pipe.

[0015] Furthermore, the refrigeration water tank and the hot water tank are connected via a water pipe and a valve.

[0016] Beneficial effects of the utility model:

[0017] 1. The present invention proposes a solar-driven split-type multi-energy central air-conditioning system, which realizes independent control of temperature and humidity by combining a solar ground-source heat pump system with a fresh air system, greatly reducing the energy waste of combined heat and humidity.

[0018] 2. The central air-conditioning system of the present invention utilizes an intelligent monitoring system to rationally allocate energy utilization, achieve optimal energy conservation, and greatly reduce energy consumption and greenhouse gas emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the central air-conditioning system of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the heating Chinese water tank of the utility model;

[0022] Figure 3 This is a system structure diagram of the lithium bromide absorption refrigeration host of the utility model.

[0023] In the figure: 1-lithium bromide absorption refrigeration host, 2-solar collector, 3-refrigeration medium water tank, 4-heating medium water tank, 5-plate heat exchanger, 6-fuel cell, 7-cooling tower, 8-wall-mounted boiler, 12-fan coil, 31-water tank body, 32-first temperature sensor, 41-second temperature sensor, 42-third temperature sensor, 1101-first water pump, 1102-second water pump, 1103-third water pump, 1104-fourth water pump, 1105-fifth water pump, 1106-sixth water pump. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, a solar-powered split-type polygeneration central air-conditioning system includes a lithium bromide absorption refrigeration unit 1, a solar collector 2, a cooling water tank 3, a hot water tank 4, a plate heat exchanger 5, a fuel cell 6, a cooling tower 7, a wall-mounted boiler 8, and a fan coil 12;

[0026] Among them, the lithium bromide absorption refrigeration host 1 uses lithium bromide to absorb the heat energy provided by solar energy to complete the cooling or heating cycle process; the solar energy absorbed by the solar collector 2 heats the water and is sent to the hot water tank 4 through a pipe for the system to heat; the plate heat exchanger is responsible for the heat exchange between the lithium bromide absorption refrigeration host 1 and the hot water tank 4; the fuel cell 6 provides power for the system, and the wall-mounted boiler 8 assists in heating the hot water tank 4; the cooling tower 7 dissipates heat for the lithium bromide absorption refrigeration host 1; the fan coil 12 dissipates the cold water temperature in the cooling water tank 3 into the room in the form of air for the system to cool.

[0027] One side of the refrigeration water tank 3 is connected to the fifth water pump 1105 through a water pipe; the refrigeration water tank 3 includes a water tank body 31 and a first temperature sensor 32, the first temperature sensor 32 is connected to the left end interface of the lithium bromide absorption refrigeration host 1, and the fifth water pump 1105 is connected to the right end interface of the lithium bromide absorption refrigeration host 1 through a water pipe, thereby monitoring the water temperature and feeding back the temperature data to the host to adjust the cooling process;

[0028] The fan coil 12 is connected to the cooling water tank 3 via the sixth water pump 1106 and the water pipe, and is responsible for distributing the cooled water into the room in the form of air to achieve a cooling effect.

[0029] The plate heat exchanger 5 is connected to the lithium bromide absorption refrigeration host 1 through a valve and a sleeve, and the plate heat exchanger 5 is connected to the hot water tank 4 through a valve and a pipeline, which is responsible for the heat exchange process and ensures the normal operation of the system in different working modes (cooling or heating).

[0030] The hot water tank 4 is connected to the solar collector 2 through the first water pump 1101 and the water pipe, and uses the water heated by solar energy to heat the water. It is also connected to the lithium bromide absorption refrigeration host 1 through the third water pump 1103, the water pipe and the valve; Figure 2 As shown, a second temperature sensor 41 and a third temperature sensor 42 are provided in the hot water tank 4 for monitoring water temperature changes to ensure system stability.

[0031] The hot water tank 4 is connected to the wall-mounted boiler 8 through a pipeline and a second water pump 1102. The wall-mounted boiler 8 serves as an auxiliary heat source. When solar energy is insufficient, it heats the water in the water tank through gas to provide a continuous heat supply.

[0032] The fuel cell 6 is connected to the hot water tank 4 via a line to provide auxiliary power for the system and enhance the self-sufficiency of the system.

[0033] The cooling tower 7 is connected to the lithium bromide absorption refrigeration host 1 through the fourth water pump 1104 and the water pipe to ensure the cooling cycle of the host and achieve efficient heat dissipation.

[0034] In addition, the cooling water tank 3 and the heating water tank 4 are connected via water pipes and valves, and can flexibly switch between cooling and heating functions according to system requirements.

[0035] like Figure 3 As shown, the lithium bromide absorption refrigeration unit 1 includes a generator, a condenser, an evaporator, an absorber, a heat exchanger, and a circulation pump. During operation, the lithium bromide aqueous solution is heated by the heat medium water in the generator, and the water in the solution continuously vaporizes. As the water continues to vaporize, the concentration of the lithium bromide aqueous solution in the generator continuously increases and enters the absorber. The water vapor enters the condenser, where it is cooled by the cooling water in the condenser and condenses into high-pressure, low-temperature liquid water. When the water in the condenser enters the evaporator through the throttle valve, it rapidly expands and vaporizes, absorbing a large amount of heat from the refrigerant water in the evaporator during the vaporization process, thereby achieving the purpose of cooling and refrigeration. The low-temperature water vapor enters the absorber and is absorbed by the lithium bromide aqueous solution in the absorber, gradually reducing the concentration of the solution. The circulating pump then returns it to the generator, completing the entire cycle.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A solar-powered split-type multi-energy central air-conditioning system, characterized in that: include: A lithium bromide absorption refrigeration host (1), a solar thermal collector (2), a refrigeration water tank (3), a hot water tank (4), a plate heat exchanger (5), a fuel cell (6), a cooling tower (7), a wall-mounted boiler (8), and a fan coil (12); The lithium bromide absorption refrigeration host (1) utilizes lithium bromide to absorb heat energy provided by solar energy to complete a cooling or heating cycle; the solar energy absorbed by the solar collector (2) heats water and is sent to the hot water tank (4) through a pipeline for the system to perform heating; the plate heat exchanger (5) is responsible for heat exchange between the lithium bromide absorption refrigeration host (1) and the hot water tank (4); the fuel cell (6) provides power to the system, and the wall-mounted boiler (8) assists in heating the hot water tank (4); the cooling tower (7) dissipates heat from the lithium bromide absorption refrigeration host (1); and the fan coil (12) dissipates the cold water temperature in the cooling water tank (3) into the room in the form of air for the system to perform cooling.

2. A solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: One side of the refrigeration water tank (3) is connected to a fifth water pump (1105) via a water pipe, and the fifth water pump (1105) is connected to a right end interface of a lithium bromide absorption refrigeration host (1) via a water pipe; the refrigeration water tank (3) includes a first temperature sensor (32), and the first temperature sensor (32) is connected to a left end interface of the lithium bromide absorption refrigeration host (1).

3. A solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The fan coil (12) is connected to the refrigeration water tank (3) via a sixth water pump (1106) and a water pipe.

4. A solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The plate heat exchanger (5) is connected to the lithium bromide absorption refrigeration host (1) through a valve and a sleeve, and the plate heat exchanger (5) is connected to the hot water tank (4) through a valve and a pipeline.

5. The solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The hot water tank (4) is connected to the lithium bromide absorption refrigeration host (1) via a third water pump (1103), a water pipe, and a valve.

6. A solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The hot water tank (4) is connected to the solar thermal collector (2) via a first water pump (1101) and a water pipe.

7. The solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The hot water tank (4) is connected to the wall-mounted boiler (8) via a water pipe and a second water pump (1102).

8. The solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The fuel cell (6) is connected to the hot water tank (4) via a line.

9. The solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The cooling tower (7) is connected to the lithium bromide absorption refrigeration host (1) via a fourth water pump (1104) and a water pipe.

10. The solar-powered split-type multi-energy central air-conditioning system according to claim 1, characterized in that: The refrigeration water tank (3) and the heating water tank (4) are connected via a water pipe and a valve.

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