Production workshop composite air conditioner based on cold accumulation and solar energy utilization

Abstract

The utility model discloses a production workshop composite air conditioner based on cold accumulation and utilizing solar energy, which comprises an adsorption type refrigeration unit, a cold accumulation tank, a cooling tower, a compression type refrigeration unit and a tail end air conditioning unit, a first cold accumulation inlet of the cold accumulation tank communicates with a second evaporation outlet of the evaporation liquid storage device, a cooling inlet of the cooling tower communicates with a second condensation outlet of the condenser, and a second compression outlet of the compression type refrigerating unit communicates with a wet cold inlet of the tail end air conditioning unit. A dry cooling coil pipe is connected between the dry cooling inlet and the dry cooling outlet of the tail end air conditioning unit, and a wet cooling coil pipe is connected between the wet cooling inlet and the wet cooling outlet. The roof area of a production workshop is fully utilized, and solar cooling is achieved; by means of the cold storage technology, the cold energy prepared through adsorption type refrigeration is stored in the cold storage tank at night, the cold storage tank provides the cold energy for an air conditioner at the tail end of a workshop in the daytime, and the problem that solar adsorption type refrigeration is not matched with the cold load demand time of the production workshop is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a composite air conditioner for a production workshop based on cold storage and utilization of solar energy. Background Art

[0002] The assembly workshop is characterized by large space, large fresh air volume for personnel, and large window-to-wall ratio, so the fresh air cooling load and the solar radiation heat gain cooling load of the enclosure structure are large. Considering the reasons such as logistics transportation and installation space in the workshop, the air conditioning in the assembly workshop in summer generally adopts the water system. The chilled water produced by the refrigeration unit is passed into the cold coil of the air conditioning unit at the top of the workshop, and the air is cooled and then sent downward to ensure the appropriate temperature of the working area near the ground.

[0003] At present, the air conditioning system commonly used in assembly production workshops in summer is as follows: the compression refrigeration unit located in the refrigeration room produces chilled water at about 7°C, which is distributed to the cold coil of the circulation air conditioning unit or fresh air air conditioning unit suspended above the workshop through the water supply pipeline. The air above the workshop is sucked into the circulation air conditioning unit, cooled to about 18°C ​​by the cold coil and sent downward; the outdoor fresh air is sucked into the fresh air air conditioning unit, cooled to about 25°C by the cold coil and sent downward. The return water of the cold coil returns to the compression refrigeration unit in the machine room through the return water pipeline, and the cycle is maintained in this way to maintain the temperature of the working area below the production workshop within an appropriate range.

[0004] The existing technical solution uses a traditional electrically driven vapor compression chiller to produce chilled water of uniform temperature, and no renewable energy is used. There is temperature stratification in the vertical direction in tall and large spaces, and the air temperature above the workshop is higher than the air temperature below. Existing simulation results show that for large assembly workshops where the heat dissipation of lights, personnel and equipment is concentrated within a height of 1.5m from the ground, when the existing air-conditioning technology is used, the air temperature above the workshop at a height of about 8m from the ground is about 3°C ​​higher than the air temperature below the workshop at a height of about 0.4m from the ground. Therefore, the inlet air temperature of the circulating air-conditioning unit is high, resulting in a large amount of cooling required for cooling the circulating air and high refrigeration energy consumption; while the fresh air air-conditioning unit uses low-temperature chilled water with dehumidification capacity to dry-cool the fresh air, resulting in unreasonable use of the grade of chilled water, and there is energy-saving potential. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a composite air conditioner for a production workshop based on cold storage and utilization of solar energy, so as to solve the problems of high refrigeration energy consumption and unreasonable utilization of chilled water quality in the circulating air conditioning group in the prior art.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions to achieve the above problems: a composite air conditioner for a production workshop based on cold storage and utilization of solar energy, comprising an adsorption refrigeration unit, the adsorption refrigeration unit comprising a solar heat collection adsorption bed, the refrigerant outlet of the solar heat collection adsorption bed is connected to the first condensation inlet of the condenser through a first check valve, the first condensation outlet of the condenser is connected to the first evaporation inlet of the evaporation liquid storage device, and the first evaporation outlet of the evaporation liquid storage device is connected to the refrigerant outlet through a second check valve;

[0007] The first condensation inlet is connected to the first condensation outlet;

[0008] The first evaporation inlet is connected to the first evaporation outlet;

[0009] The solar heat collection adsorption bed is connected to the inlet end of the first check valve, and the outlet end of the first check valve is connected to the first condensation inlet end of the condenser;

[0010] The first evaporation outlet end of the evaporation liquid storage device is connected to the inlet end of the second check valve, and the outlet end of the second check valve is connected to the solar heat collection adsorption bed;

[0011] It also includes a cold storage tank, a cooling tower, a compression refrigeration unit and a terminal air conditioning unit connected to the adsorption refrigeration unit;

[0012] The first cold storage inlet of the cold storage tank is connected to the second evaporation outlet of the evaporation reservoir, and the first cold storage outlet of the cold storage tank is connected to the second evaporation inlet of the evaporation reservoir;

[0013] The first cold storage inlet is connected to the first cold storage outlet;

[0014] The second evaporation outlet is communicated with the second evaporation inlet;

[0015] The cooling inlet of the cooling tower is communicated with the second condensation outlet of the condenser, and the cooling outlet of the cooling tower is communicated with the second condensation inlet of the condenser;

[0016] The cooling inlet is connected to the cooling outlet;

[0017] The second condensation outlet is communicated with the second condensation inlet;

[0018] The cooling inlet of the cooling tower is also connected to the first compression inlet of the compression refrigeration unit, and the cooling outlet of the cooling tower is also connected to the first compression outlet of the compression refrigeration unit;

[0019] The second compression outlet of the compression refrigeration unit is connected to the wet cold inlet of the terminal air conditioning unit, and the wet cold outlet of the terminal air conditioning unit is connected to the second compression inlet of the compression refrigeration unit;

[0020] The first compression inlet is connected to the first compression outlet;

[0021] The second compression outlet is communicated with the second compression inlet;

[0022] The dry cooling inlet of the terminal air conditioning unit is connected to the second cold storage inlet of the cold storage tank, and the dry cooling outlet of the terminal air conditioning unit is connected to the second cold storage outlet of the cold storage tank;

[0023] The second cold storage inlet is connected to the second cold storage outlet;

[0024] A dry cooling coil is connected between the dry cooling inlet and the dry cooling outlet, and a wet cooling coil is connected between the wet cooling inlet and the wet cooling outlet.

[0025] The utility model also has the following technical features:

[0026] The port of the solar heat collection adsorption bed is connected to the condenser through a first refrigerant pipeline, and the first evaporation outlet of the evaporation liquid storage device is connected to the port of the solar heat collection adsorption bed through a second refrigerant pipeline;

[0027] The first check valve is installed on the first refrigerant pipeline, and the second check valve is installed on the second refrigerant pipeline;

[0028] The first cold storage inlet of the cold storage tank and the second evaporation outlet of the evaporation reservoir are connected through a first water pipe, and the first cold storage outlet of the cold storage tank and the second evaporation inlet of the evaporation reservoir are connected through a second water pipe;

[0029] The second water pipe is also equipped with a first water pump;

[0030] A second water pump is also installed at the cooling outlet end of the cooling tower;

[0031] A first stop valve and a third water pump are also installed on the pipeline between the dry cooling outlet of the terminal air conditioning unit and the second cold storage outlet of the cold storage tank;

[0032] A second stop valve and a fourth water pump are also installed on the pipeline between the second compression outlet of the compression refrigeration unit and the wet cooling inlet of the terminal air conditioning unit;

[0033] The terminal air conditioning units may be multiple groups;

[0034] The wet cold inlet of each terminal air conditioning unit is connected to the second compression outlet of the compression refrigeration unit, and the wet cold outlet of each terminal air conditioning unit is connected to the second compression inlet of the compression refrigeration unit;

[0035] The dry cooling inlet of each terminal air conditioning unit is connected to the second cold storage inlet of the cold storage tank, and the dry cooling outlet of each terminal air conditioning unit is connected to the second cold storage outlet of the cold storage tank;

[0036] Compared with the prior art, the utility model has the following technical effects:

[0037] (I) The composite air conditioner for production workshops based on cold storage and utilization of solar energy provided by the utility model fully utilizes the roof area of ​​the production workshop, utilizes solar energy and heat to drive the desorption process of the adsorption bed during the day, and utilizes the low temperature environment to promote the adsorption process of the adsorption bed at night, thereby realizing solar energy cooling;

[0038] Using cold storage technology, the cold energy generated by adsorption refrigeration is stored in the cold storage tank at night, and the cold storage tank provides cold energy for the workshop terminal air conditioner during the day, solving the problem of mismatch between solar adsorption refrigeration and the cold load demand time of the production workshop;

[0039] Adsorption refrigeration technology is used to prepare high-temperature cold water (about 15°C) for the dry cooling coils of terminal air-conditioning units. Steam compression refrigeration technology is used to prepare low-temperature cold water (about 7°C) for the wet cooling coils of terminal air-conditioning units, realizing composite cooling of different grades, reducing the installed capacity of steam compression refrigeration units, and reducing air-conditioning energy consumption in production workshops.

[0040] (II) The composite air conditioner for production workshops based on cold storage and utilization of solar energy provided by the utility model has a simple structure, is easy to operate, safe and reliable, and has strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the composite air conditioner for a production workshop based on cold storage and utilization of solar energy according to the utility model.

[0042] Figure 2 This is a schematic diagram of the overall structure of the utility model when it includes two terminal air-conditioning units.

[0043] The meaning of each symbol in the accompanying drawings:

[0044] 1- adsorption refrigeration unit, 2- cold storage tank, 3- cooling tower, 4- compression refrigeration unit, 5- terminal air conditioning unit; 6- first refrigerant pipeline, 7- second refrigerant pipeline, 8- first water pipe, 9- second water pipe, 10- first water pump, 11- second water pump, 12- first stop valve, 13- third water pump, 14- second stop valve, 15- fourth water pump

[0045] 1-1-solar heat collection adsorption bed, 1-2-refrigerant outlet, 1-3-first check valve, 1-4-condenser, 1-5-first condensation inlet, 1-6-first condensation outlet, 1-7-evaporation liquid storage, 1-8-first evaporation inlet, 1-9-first evaporation outlet, 1-10-second check valve, 1-11-second evaporation outlet, 1-12-second evaporation inlet, 1-13-second condensation outlet, 1-14-second condensation inlet;

[0046] 2-1-first cold storage inlet, 2-2-first cold storage outlet, 2-3-second cold storage inlet, 2-4-second cold storage outlet;

[0047] 3-1-cooling inlet, 3-2-cooling outlet;

[0048] 4-1-first compression inlet, 4-2-first compression outlet, 4-3-second compression outlet, 4-4-second compression inlet;

[0049] 5-1-dry cooling inlet, 5-2-dry cooling outlet, 5-3-wet cooling inlet, 5-4-wet cooling outlet, 5-5-dry cooling coil, 5-6-wet cooling coil.

[0050] The specific contents of the utility model are further explained in detail below in conjunction with the embodiments. DETAILED DESCRIPTION

[0051] All components in the present invention, unless otherwise specified, are components known in the prior art.

[0052] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of the present application fall within the protection scope of the present invention.

[0053] Embodiment 1:

[0054] This embodiment provides a composite air conditioner for a production workshop based on cold storage and utilization of solar energy, such as Figure 1 As shown, it includes an adsorption refrigeration unit 1, and the adsorption refrigeration unit 1 includes a solar heat collection adsorption bed 1-1, and the refrigerant outlet 1-2 of the solar heat collection adsorption bed 1-1 is connected to the first condensation inlet 1-5 of the condenser 1-4 through a first check valve 1-3, and the first condensation outlet 1-6 of the condenser 1-4 is connected to the first evaporation inlet 1-8 of the evaporation reservoir 1-7, and the first evaporation outlet 1-9 of the evaporation reservoir 1-7 is connected to the refrigerant outlet 1-2 through a second check valve 1-10;

[0055] The first condensation inlet 1-5 is connected to the first condensation outlet 1-6;

[0056] The first evaporation inlet 1-8 is connected to the first evaporation outlet 1-9;

[0057] The solar heat collection adsorption bed 1-1 is connected to the inlet end of the first check valve 1-3, and the outlet end of the first check valve 1-3 is connected to the first condensation inlet end 1-5 of the condenser;

[0058] The first evaporation outlet 1-9 of the evaporation liquid storage tank 1-7 is connected to the inlet of the second check valve 1-10, and the outlet of the second check valve 1-10 is connected to the solar heat collection adsorption bed 1-1;

[0059] It also includes a cold storage tank 2, a cooling tower 3, a compression refrigeration unit 4 and a terminal air conditioning unit 5 connected to the adsorption refrigeration unit 1;

[0060] The first cold storage inlet 2-1 of the cold storage tank 2 is connected to the second evaporation outlet 1-11 of the evaporation reservoir 1-7, and the first cold storage outlet 2-2 of the cold storage tank 2 is connected to the second evaporation inlet 1-12 of the evaporation reservoir 1-7;

[0061] The first cold storage inlet 2-1 is connected to the first cold storage outlet 2-2;

[0062] The second evaporation outlet 1-11 is connected to the second evaporation inlet 1-12;

[0063] The cooling inlet 3-1 of the cooling tower 3 is communicated with the second condensation outlet 1-13 of the condenser 1-4, and the cooling outlet 3-2 of the cooling tower 3 is communicated with the second condensation inlet 1-14 of the condenser 1-4;

[0064] The cooling inlet 3-1 is connected to the cooling outlet 3-2;

[0065] The second condensation outlet 1-13 is connected to the second condensation inlet 1-14;

[0066] The cooling inlet 3-1 of the cooling tower 3 is also connected to the first compression inlet 4-1 of the compression refrigeration unit 4, and the cooling outlet 3-2 of the cooling tower 3 is also connected to the first compression outlet 4-2 of the compression refrigeration unit 4;

[0067] The second compression outlet 4-3 of the compression refrigeration unit 4 is connected to the wet cold inlet 5-3 of the terminal air conditioning unit 5, and the wet cold outlet 5-4 of the terminal air conditioning unit 5 is connected to the second compression inlet 4-4 of the compression refrigeration unit 4;

[0068] The first compression inlet 4-1 is connected to the first compression outlet 4-2;

[0069] The second compression outlet 4-3 is communicated with the second compression inlet 4-4;

[0070] The dry cooling inlet 5-1 of the terminal air conditioning unit 5 is connected to the second cold storage inlet 2-3 of the cold storage tank 2, and the dry cooling outlet 5-2 of the terminal air conditioning unit 5 is connected to the second cold storage outlet 2-4 of the cold storage tank 2;

[0071] The second cold storage inlet 2-3 is connected to the second cold storage outlet 2-4;

[0072] A dry cooling coil 5-5 is connected between the dry cooling inlet 5-1 and the dry cooling outlet 5-2, and a wet cooling coil 5-6 is connected between the wet cooling inlet 5-3 and the wet cooling outlet 5-4.

[0073] The composite air conditioner for production workshops based on cold storage and utilization of solar energy provided by the utility model fully utilizes the roof area of ​​the production workshop, utilizes solar energy and heat to drive the desorption process of the adsorption bed during the day, and utilizes the low temperature environment to promote the adsorption process of the adsorption bed at night, thereby realizing solar energy cooling;

[0074] Using cold storage technology, the cold energy generated by adsorption refrigeration is stored in the cold storage tank at night, and the cold storage tank provides cold energy for the workshop terminal air conditioner during the day, solving the problem of mismatch between solar adsorption refrigeration and the cold load demand time of the production workshop;

[0075] Adsorption refrigeration technology is used to prepare high-temperature cold water (about 15°C) for the dry cooling coils of terminal air-conditioning units. Steam compression refrigeration technology is used to prepare low-temperature cold water (about 7°C) for the wet cooling coils of terminal air-conditioning units, realizing composite cooling of different grades, reducing the installed capacity of steam compression refrigeration units, and reducing air-conditioning energy consumption in production workshops.

[0076] As a preferred embodiment of this invention:

[0077] The port of the solar heat collection adsorption bed 1-1 is connected to the condenser 1-4 through a first refrigerant pipeline 6, and the first evaporation outlet 1-9 of the evaporation liquid storage device 1-7 is connected to the port of the solar heat collection adsorption bed 1-1 through a second refrigerant pipeline 7;

[0078] The first check valve 1-3 is installed on the first refrigerant pipeline 6, and the second check valve 1-10 is installed on the second refrigerant pipeline 7;

[0079] As a preferred embodiment of this invention:

[0080] The first cold storage inlet 2-1 of the cold storage tank 2 and the second evaporation outlet 1-11 of the evaporation reservoir 1-7 are connected via a first water pipe 8, and the first cold storage outlet 2-2 of the cold storage tank 2 and the second evaporation inlet 1-12 of the evaporation reservoir 1-7 are connected via a second water pipe 9;

[0081] The second water pipe 9 is also equipped with a first water pump 10;

[0082] As a preferred embodiment of this invention:

[0083] A second water pump 11 is also installed at the cooling outlet 3-2 end of the cooling tower 3;

[0084] A first stop valve 12 and a third water pump 13 are also installed on the pipeline between the dry cooling outlet 5-2 of the terminal air conditioning unit 5 and the second cold storage outlet 2-4 of the cold storage tank 2;

[0085] A second stop valve 14 and a fourth water pump 15 are also installed on the pipeline between the second compression outlet 4-3 of the compression refrigeration unit 4 and the wet cold inlet 5-3 of the terminal air conditioning unit 5;

[0086] As a preferred embodiment of this invention:

[0087] The terminal air conditioning unit 5 may be multiple groups;

[0088] The wet cold inlet 5-3 of each terminal air conditioning unit 5 is connected to the second compression outlet 4-3 of the compression refrigeration unit 4, and the wet cold outlet 5-4 of each terminal air conditioning unit 5 is connected to the second compression inlet 4-4 of the compression refrigeration unit 4;

[0089] The dry cooling inlet 5-1 of each terminal air conditioning unit 5 is connected to the second cold storage inlet 2-3 of the cold storage tank 2, and the dry cooling outlet 5-2 of each terminal air conditioning unit 5 is connected to the second cold storage outlet 2-4 of the cold storage tank 2;

[0090] When the terminal air-conditioning unit 5 is used to cool the circulating air in the workshop, the first stop valve 12 connected to the dry cooling coil 5-5 and the second stop valve 14 connected to the wet cooling coil 5-6 are both opened; when the terminal air-conditioning unit 5 is used to cool the outdoor fresh air, the first stop valve 12 connected to the dry cooling coil 5-5 is opened, and the second stop valve 14 connected to the wet cooling coil 5-6 is closed.

[0091] like Figure 2 As shown, the number of the terminal air conditioning units 5 can be 1, 2 or more, which can be used to cool the circulating air in the workshop or cool the outdoor fresh air;

[0092] The solid adsorbent in the solar heat collection adsorption bed 1-1 can be silica gel or other adsorbents suitable for using solar heat as a power source, and the adsorbent can be water or other suitable working fluids;

[0093] The cold storage material in the cold storage tank 2 can be water or a phase-change cold storage medium.

[0094] Under the condition of high solar radiation intensity during the summer day, the air conditioning mode is operated: the solar heat collection adsorption bed 1-1 desorbs the refrigerant, and the refrigerant enters the condenser 1-4 through the first check valve 1-3 to condense and release heat, and then enters the evaporation liquid storage tank 1-7 for storage; the adsorption refrigeration cooling water cycle absorbs heat from the condenser 1-4, merges with the compression refrigeration unit 4 cooling water cycle and enters the cooling tower 3; the cold storage material in the cold storage tank 2 releases cold to the first air conditioning water cycle, and the compression refrigeration unit 4 releases cold to the second air conditioning water cycle; the dry cooling coil 5-5 and the wet cooling coil 5-6 in the terminal air conditioning unit 5 respectively obtain cold energy from the first air conditioning water cycle and the second air conditioning water cycle to supply cooling to the workshop;

[0095] When there is no solar radiation at night and the ambient temperature is low, the cold storage mode is operated: the refrigerant in the evaporation liquid storage tank 1-7 absorbs heat from the cold storage water cycle and evaporates, enters the solar heat collection adsorption bed 1-1 through the second check valve 1-10 and is adsorbed by the adsorbent; the cold storage material in the cold storage tank 2 releases heat to the cold storage water cycle to store cold; the second water pump 11, the third water pump 13 and the fourth water pump 15 do not operate, and the compression refrigeration unit 4 and the terminal air conditioning unit 5 do not operate;

[0096] The above technical solutions are only preferred specific implementation methods of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of by any technician familiar with the field within the technical scope disclosed by the present utility model without creative work are all covered within the protection scope of the present utility model.

Claims

1. A composite air conditioner for a production workshop based on cold storage and utilization of solar energy, comprising an adsorption refrigeration unit (1), the adsorption refrigeration unit (1) comprising a solar heat collection adsorption bed (1-1), the refrigerant outlet (1-2) of the solar heat collection adsorption bed (1-1) being connected to a first condensation inlet (1-5) of a condenser (1-4) via a first check valve (1-3), the first condensation outlet (1-6) of the condenser (1-4) being connected to a first evaporation inlet (1-8) of an evaporation liquid reservoir (1-7), and the first evaporation outlet (1-9) of the evaporation liquid reservoir (1-7) being connected to a refrigerant outlet (1-2) via a second check valve (1-10); The first condensation inlet (1-5) is connected to the first condensation outlet (1-6); The first evaporation inlet (1-8) is connected to the first evaporation outlet (1-9); The solar heat collection adsorption bed (1-1) is connected to the inlet end of the first check valve (1-3), and the outlet end of the first check valve (1-3) is connected to the first condensation inlet (1-5) of the condenser; The first evaporation outlet (1-9) end of the evaporation liquid storage device (1-7) is connected to the inlet end of the second check valve (1-10), and the outlet end of the second check valve (1-10) is connected to the solar heat collection adsorption bed (1-1), characterized in that: It also includes a cold storage tank (2), a cooling tower (3), a compression refrigeration unit (4) and a terminal air conditioning unit (5) connected to the adsorption refrigeration unit (1); The first cold storage inlet (2-1) of the cold storage tank (2) is connected to the second evaporation outlet (1-11) of the evaporation liquid storage device (1-7), and the first cold storage outlet (2-2) of the cold storage tank (2) is connected to the second evaporation inlet (1-12) of the evaporation liquid storage device (1-7); The first cold storage inlet (2-1) is connected to the first cold storage outlet (2-2); The second evaporation outlet (1-11) is connected to the second evaporation inlet (1-12); The cooling inlet (3-1) of the cooling tower (3) is in communication with the second condensation outlet (1-13) of the condenser (1-4), and the cooling outlet (3-2) of the cooling tower (3) is in communication with the second condensation inlet (1-14) of the condenser (1-4); The cooling inlet (3-1) is connected to the cooling outlet (3-2); The second condensation outlet (1-13) is connected to the second condensation inlet (1-14); The cooling inlet (3-1) of the cooling tower (3) is also in communication with the first compression inlet (4-1) of the compression refrigeration unit (4), and the cooling outlet (3-2) of the cooling tower (3) is also in communication with the first compression outlet (4-2) of the compression refrigeration unit (4); The second compression outlet (4-3) of the compression refrigeration unit (4) is connected to the wet cold inlet (5-3) of the terminal air conditioning unit (5), and the wet cold outlet (5-4) of the terminal air conditioning unit (5) is connected to the second compression inlet (4-4) of the compression refrigeration unit (4); The first compression inlet (4-1) is in communication with the first compression outlet (4-2); The second compression outlet (4-3) is in communication with the second compression inlet (4-4); The dry cooling inlet (5-1) of the terminal air conditioning unit (5) is connected to the second cold storage inlet (2-3) of the cold storage tank (2), and the dry cooling outlet (5-2) of the terminal air conditioning unit (5) is connected to the second cold storage outlet (2-4) of the cold storage tank (2); The second cold storage inlet (2-3) is connected to the second cold storage outlet (2-4); A dry cooling coil (5-5) is connected between the dry cooling inlet (5-1) and the dry cooling outlet (5-2), and a wet cooling coil (5-6) is connected between the wet cooling inlet (5-3) and the wet cooling outlet (5-4).

2. The composite air conditioner for production workshop based on cold storage and utilization of solar energy as claimed in claim 1, characterized in that: The port of the solar heat collection adsorption bed (1-1) is connected to the condenser (1-4) via a first refrigerant pipeline (6), and the first evaporation outlet (1-9) of the evaporation liquid storage device (1-7) is connected to the port of the solar heat collection adsorption bed (1-1) via a second refrigerant pipeline (7); The first check valve (1-3) is installed on the first refrigerant pipeline (6), and the second check valve (1-10) is installed on the second refrigerant pipeline (7).

3. The composite air conditioner for a production workshop based on cold storage and utilization of solar energy as claimed in claim 2, characterized in that: The first cold storage inlet (2-1) of the cold storage tank (2) and the second evaporation outlet (1-11) of the evaporation liquid reservoir (1-7) are connected via a first water pipe (8), and the first cold storage outlet (2-2) of the cold storage tank (2) and the second evaporation inlet (1-12) of the evaporation liquid reservoir (1-7) are connected via a second water pipe (9); A first water pump (10) is also installed on the second water pipe (9).

4. The composite air conditioner for a production workshop based on cold storage and utilization of solar energy as claimed in claim 2, characterized in that: A second water pump (11) is also installed at the cooling outlet (3-2) end of the cooling tower (3); A first stop valve (12) and a third water pump (13) are also installed on the pipeline between the dry cooling outlet (5-2) of the terminal air conditioning unit (5) and the second cold storage outlet (2-4) of the cold storage tank (2); A second stop valve (14) and a fourth water pump (15) are also installed on the pipeline between the second compression outlet (4-3) of the compression refrigeration unit (4) and the wet cooling inlet (5-3) of the terminal air conditioning unit (5).

5. The composite air conditioner for production workshop based on cold storage and utilization of solar energy as claimed in claim 4, characterized in that: The terminal air conditioning unit (5) may be multiple groups; The wet cold inlet (5-3) of each terminal air conditioning unit (5) is connected to the second compression outlet (4-3) of the compression refrigeration unit (4), and the wet cold outlet (5-4) of each terminal air conditioning unit (5) is connected to the second compression inlet (4-4) of the compression refrigeration unit (4); The dry cooling inlet (5-1) of each terminal air conditioning unit (5) is connected to the second cold storage inlet (2-3) of the cold storage tank (2), and the dry cooling outlet (5-2) of each terminal air conditioning unit (5) is connected to the second cold storage outlet (2-4) of the cold storage tank (2).

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