Multi-path cooling cross-seasonal natural ice storage and cold supply system

Abstract

The utility model discloses a multi-path cooling cross-seasonal natural ice storage and cold supply system which comprises an ice storage and cold supply body device and a layered cooler, and collaborative optimization of cross-seasonal cold storage and efficient cold supply is achieved through functional integration. Three sets of parallel heat exchange pipe networks are arranged in the ice storage and cold supply body device, outdoor low-temperature cold air naturally flows into the pipe networks in winter and exchanges heat with water serving as a cold storage material, the water is frozen into ice, and the ice making and cold storage functions driven by natural cold energy are achieved. In transition seasons, an inlet and an outlet of the heat exchange pipe network are closed and combined with a composite thermal insulation material to reduce cold loss and ensure long-term storage of cold; in summer, the layered cooler communicates with the horizontal heat exchange pipe network through the pipeline connecting part, the cooling path is dynamically adjusted, the cooling capacity requirement of a user side is accurately matched, the cold source utilization efficiency is improved, and the cooling capacity loss is reduced. According to the system, the adaptability and reliability of system operation are remarkably improved while efficient cold storage and flexible cold supply of natural cold energy are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of renewable energy and low-carbon cooling technology, and in particular relates to a multi-path cooling system for cross-seasonal natural ice storage. Background Technology

[0002] Globally, buildings account for a staggering 36% of energy consumption. Currently, global cooling demand contributes approximately 4% to greenhouse gas emissions annually and consumes 10% of global electricity. In 2019, large-space cooling consumed about 15% of total air conditioning energy consumption, equivalent to indirectly emitting 1 GW of carbon dioxide. Furthermore, existing cooling methods are extremely energy-intensive, and the increasing number of air conditioning units and their power consumption are leading to ever-growing energy costs in building operations.

[0003] To effectively reduce building cooling energy consumption and promote building energy conservation and energy structure transformation, cross-seasonal ice storage cooling technology, which utilizes natural winter cooling for cross-seasonal storage and provides cooling in summer, can reduce building air conditioning and refrigeration system energy consumption and carbon emissions.

[0004] Currently, most interseasonal ice storage cooling systems have their storage space located underground, typically employing high-performance unidirectional heat transfer elements—split heat pipes—to transfer the cooling capacity of outdoor cold air to the underground for storage. The temperature stability of the underground soil environment and its immunity to solar radiation, along with the unidirectional heat transfer advantage of heat pipes, help reduce cooling loss. However, these heat pipe-based underground interseasonal ice storage systems still face the following problems: 1) The cooling system is complex, with high investment costs and a typical payback period of 8-10 years; 2) Large storage capacity requirements and difficult maintenance of underground heat pipes; 3) The vast majority of systems use split heat pipes for cooling, making fault location difficult to diagnose and resulting in high maintenance costs, further extending the payback period of interseasonal ice storage systems. Therefore, developing a low-cost interseasonal ice storage cooling device is crucial for achieving low-energy cooling in buildings. Utility Model Content

[0005] The main objective of this invention is to provide a multi-path cooling system for cross-seasonal natural ice storage and cooling, the specific technical solution of which is as follows:

[0006] A multi-path cooling system for cross-seasonal natural ice storage and cooling, comprising an ice storage and cooling body device and a stratified cooling unit;

[0007] The ice storage and cooling system consists of an ice storage and cooling tank, composite insulation material, and a parallel heat exchange pipeline network.

[0008] The ice storage and cooling tank contains three sets of parallel heat exchange pipe networks evenly distributed inside. One side of the parallel heat exchange pipe network serves as the heat exchange fluid inlet, and the other side serves as the outlet.

[0009] The outer wall of the ice storage and cooling tank is covered with composite insulation material, and the top is equipped with an insulation panel. Water is used as the cold storage material inside.

[0010] The stratified cooler consists of an inlet top air valve, an inlet bottom air valve, an outlet top air valve, an outlet bottom air valve, detachable pipe connection components, pipe fixing components, a fan, and modular branch air ducts.

[0011] Both sides of the parallel heat exchange network are equipped with detachable pipe connection components and filters. The branch ducts are connected to the parallel heat exchange network through the detachable pipe connection components. The filters are installed at the inlet end of the parallel heat exchange network to remove particulate matter and impurities from the outdoor air.

[0012] The inlet top air valve, inlet bottom air valve, outlet top air valve, and outlet bottom air valve are located in the vertical pipe section of the module branch duct; and a dynamic control mechanism is adopted to adjust the opening and closing status according to the different cooling demand of the user end, forming a multi-level output and realizing multi-level output and path optimization of cooling capacity;

[0013] The fan is installed inside the horizontal pipes on both sides of the module branch duct;

[0014] The modular branch ducts on both sides of the ice storage and cooling device are combined and directly connected to the user terminal to form an air conditioning fan coil unit for cooling the room.

[0015] The parallel heat exchange pipe network allows cold outdoor air to flow naturally into the water during winter, exchanging heat with the cold storage material and freezing the water into ice; thus completing the ice-making and cold storage process.

[0016] By using the parallel heat exchange pipe network inlet and outlet of the closed ice storage cooling device, combined with composite insulation materials to reduce cold loss, an ice storage mode is formed for the transitional season.

[0017] The ice storage cooling unit is combined with the stratified cooler through a detachable pipe connection component. The cooling capacity is transferred from the ice storage cooling unit to the heat exchange fluid in the stratified cooler, and then delivered to the user end, forming a summer cooling release mode.

[0018] The preferred embodiment of the multi-path cooling cross-seasonal natural ice storage cooling system is that the composite insulation material adopts a double-layer design of an outer layer of high-strength concrete and an inner layer of rubber and plastic insulation cotton; the concrete layer is used to provide structural strength and external environmental isolation protection, while the rubber and plastic insulation cotton reduces cold loss through efficient heat insulation performance, ensuring the long-term stability of the system operation.

[0019] In the preferred embodiment of the multi-path cooling cross-seasonal natural ice storage and cooling system, the ice storage and cooling tank is made of stainless steel.

[0020] In a preferred embodiment of the multi-path cooling cross-seasonal natural ice storage cooling system, the pipes of the parallel heat exchange network and the stratified cooler are all air ducts, and are all made of high-performance stainless steel.

[0021] In a preferred embodiment of the multi-path cooling cross-seasonal natural ice storage cooling system, the detachable pipe connection components can be quickly switched between different operating modes; the pipe fixing components are made of high-strength corrosion-resistant materials to ensure long-term operational reliability.

[0022] The preferred embodiment of the multi-path cooling cross-seasonal natural ice storage cooling system is that the ice storage cooling tank is 3 meters high, and the parallel heat exchange pipe network is optimized to form an efficient heat transfer network in the ice storage cooling tank, so as to avoid local heat transfer deficiency, improve the cold storage efficiency and the overall system performance.

[0023] Two parallel heat exchange tubes form a set of parallel heat exchange tube networks, which are divided into three layers according to the height of the ice storage cooling tank. The distance between each layer is 1 meter. Each set of parallel heat exchange tube networks is arranged at the center of each layer, which is an unfolded axisymmetric form.

[0024] The preferred embodiment of the multi-path cooling cross-seasonal natural ice storage cooling system is that the stratified cooler dynamically adjusts the air valves in the stratified cooler according to the different cooling needs of the energy-consuming end, forming a multi-path cooling distribution, thereby achieving precise transfer and efficient utilization of cooling energy.

[0025] The preferred embodiment of the multi-path cooling cross-seasonal natural ice storage cooling system is that the device has three operating modes. The first mode is the winter ice-making mode: In winter, the device starts the ice-making mode and opens the inlet and outlet of the parallel heat exchange pipe network inside the ice storage cooling body; outdoor low-temperature cold air flows naturally into the parallel heat exchange pipe network, and the outdoor cold air flows in the parallel heat exchange pipe network, exchanging heat with the phase change material—water—in the tank, and quickly completing the freezing process; by optimizing the layout of the parallel heat exchange pipe network, the contact time between cold air and water is extended, heat exchange dead zones are avoided, heat exchange efficiency is improved, and water is ensured to freeze into ice in a short time, realizing efficient ice making driven by natural cold energy.

[0026] The second type of transitional season ice storage mode: During the transitional season, the device switches to ice storage mode, and the inlet and outlet of the parallel heat exchange pipe network inside the ice storage cooling body are sealed. Combined with external composite insulation material, the loss of cold energy is reduced. The double-layer composite insulation material works synergistically with the low temperature environment to effectively maintain the low temperature state inside the ice storage body, ensure long-term preservation of cold energy, and provide a stable cold source guarantee for summer cooling.

[0027] The third type of summer cooling release mode: In summer, the device switches to cooling release mode and connects the stratified cooler to the parallel heat exchange network through the detachable pipe connection component; the cooling capacity is transferred from the ice storage cooling body to the heat exchange fluid in the stratified cooler, and then delivered to the end user through the cooling end; the system adjusts the cooling capacity distribution path through the air valve according to the user's cooling load demand.

[0028] The preferred embodiment of the multi-path cooling cross-seasonal natural ice storage cooling system is that the cooling capacity distribution path is divided into low cooling capacity demand, medium cooling capacity demand and high cooling capacity demand.

[0029] For low cooling capacity requirements: activate a single set of parallel heat exchanger network, close the inlet top air valve, inlet bottom air valve, outlet top air valve and outlet bottom air valve, limit the flow trajectory of the heat exchange fluid, and precisely control the cooling range;

[0030] Intermediate cooling capacity requirement: Activate two sets of parallel heat exchanger networks, open the inlet top air valve and the outlet top air valve, close the inlet bottom air valve and the outlet bottom air valve, and expand the flow path of the heat exchange fluid;

[0031] High cooling capacity demand: Activate all three sets of parallel heat exchanger networks, fully open the inlet top air valve, inlet bottom air valve, outlet top air valve and outlet bottom air valve to form the maximum cooling capacity output path and complete the cooling release process.

[0032] A multi-path cooling system for cross-seasonal natural ice storage operates as follows in ice-making mode: When the system enters ice-making mode, the water temperature within the ice storage tank is approximately 8°C. The inlet and outlet of the parallel heat exchange network are opened, allowing cold outdoor air to flow naturally into the network during winter. This air exchanges heat with the phase change material—water—within the tank, freezing the water into ice and achieving ice storage driven by natural cold energy. The optimized heat exchange network design extends the flow path of the cold air, increasing the heat exchange area and contact time, thus significantly improving heat exchange efficiency. The network layout effectively avoids heat exchange dead zones, maximizing the contact area between cold air and water and reducing the impact of thermal isolation areas on heat exchange performance. Furthermore, to ensure system reliability, filters are installed at the inlet and outlet of the heat exchange network to efficiently remove particulate matter and impurities from the air, ensuring the cleanliness of the cold air, reducing damage to the system, and extending the lifespan of the device.

[0033] The working principle of the ice storage mode is as follows: After the ice-making process is completed, the system switches to ice storage mode. The inlet and outlet of the parallel heat exchange network are closed. The double-layer structure of the outer concrete layer and the inner rubber and plastic insulation cotton works together to effectively isolate external heat sources; combined with the protective effect of the internal low-temperature air, it minimizes the loss of cold energy and ensures that the cold energy in the ice storage body can be stored for a long time, providing a reliable guarantee for cooling in summer.

[0034] The working principle of the cold release mode is as follows: When the system switches to cold release mode, the inlet and outlet of the parallel heat exchange network are opened, and the stratified cooler is connected to the parallel heat exchange network through the pipe connection components. The cooling capacity is transferred from the ice storage cooling body to the heat exchange fluid in the stratified cooler, and finally supplied to the end users through the cooling end.

[0035] Beneficial effects

[0036] 1. Achieve ice-making and cold storage functions driven by natural cold energy, avoiding the problem of high-energy-consumption ice making.

[0037] This invention utilizes the natural flow of cold outdoor air into the ice storage and cooling device during winter, through a built-in parallel heat exchange pipe network, to exchange heat with the water—the cold storage material—achieving ice-making and cold storage functions under natural conditions. By optimizing the design of the heat exchange pipe network, the heat exchange efficiency between cold air and water is improved, avoiding the high energy consumption problem of traditional mechanical ice-making processes. It also overcomes the shortcomings of heat pipe-based ice-making systems, such as complex structure, high cost, and poor economic efficiency, significantly improving ice-making efficiency and economy.

[0038] 2. Flexibly meets the cooling capacity requirements of energy users, significantly improving the system's cooling adaptability.

[0039] This invention flexibly determines the cooling path of the ice storage cooling system based on the different cooling demands of the energy-consuming end and the dynamic control capability of the air valves in the stratified cooler. By selectively activating the parallel heat exchange network, it can accurately match the user's cooling needs while minimizing cooling loss within the ice storage cooling system, significantly improving the utilization rate of the cold source. Furthermore, this flexible cooling mode ensures the reliability of the system during long-term operation and is particularly suitable for complex scenarios with diverse user needs.

[0040] 3. Innovative system architecture and functional integration design significantly improve performance and reliability.

[0041] This invention achieves synergistic optimization of cross-seasonal cold storage and efficient cooling through the functional integration of an ice storage cooling system and a stratified cooling unit. The ice storage cooling system employs a synergistic design of composite insulation materials, a stainless steel tank, and a parallel heat exchange pipe network to construct a cold storage device with excellent heat transfer efficiency and long-term cold storage capacity. The outer layer of the composite insulation material is high-strength concrete, providing mechanical strength and environmental protection; the inner layer uses high-efficiency rubber-plastic insulation cotton, which has excellent thermal insulation performance and minimizes cold loss. The stainless steel tank and parallel heat exchange pipe network possess excellent corrosion resistance and thermal stability, adapting to low-temperature operating environments. Simultaneously, the optimized heat exchange pipe network layout significantly reduces the occurrence of heat exchange dead zones, improving heat transfer efficiency and phase change performance.

[0042] The stratified cooling system incorporates modular dynamic control, consisting of branch ducts, valves, fans, and precision pipe connectors. Through precise valve control, it meets diverse cooling demands from users while maximizing the retention of residual cooling capacity within the ice storage during the cooling process. This structural design not only significantly improves cold source utilization efficiency but also ensures the system's long-term stability and adaptability under complex operating conditions, providing a reliable guarantee for low-energy cooling in various building scenarios. Attached Figure Description

[0043] Figure 1 A schematic diagram of a multi-path cooling system for cross-seasonal natural ice storage and cooling;

[0044] Figure 2 Schematic diagram of an ice storage and cooling device;

[0045] Figure 3 Internal temperature distribution diagram of the entire heat exchange network for the cross-seasonal ice storage and cooling system.

[0046] Among them: 1-Ice storage cooling tank, 2-Composite insulation layer, 3-Parallel heat exchange pipe network, 4-Filter, 5-Inlet top air valve, 6-Inlet bottom air valve, 7-Outlet top air valve, 8-Outlet bottom air valve, 9-Detachable pipe connection parts, 10-Pipe fixing device, 11-Fan, 12-Branch pipe, 13-Air conditioning fan coil unit. Detailed Implementation

[0047] 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.

[0048] like Figure 1-3 As shown, a multi-path cooling system for cross-seasonal natural ice storage includes an ice storage cooling body and a stratified cooling unit.

[0049] The ice storage and cooling system consists of an ice storage and cooling tank 1, a composite insulation material 2, and a parallel heat exchange pipeline 3.

[0050] The ice storage and cooling tank 1 contains three sets of parallel heat exchange pipe networks 3 evenly distributed inside. One side of the parallel heat exchange pipe network 3 serves as the heat exchange fluid inlet, and the other side serves as the outlet.

[0051] The outer wall of the ice storage and cooling tank 1 is covered with composite insulation material 2, and the top is provided with an insulation outer panel. The interior is filled with water as the cold storage material.

[0052] The stratified cooler consists of an inlet top air valve 5, an inlet bottom air valve 6, an outlet top air valve 7, an outlet bottom air valve 8, a detachable pipe connection component 9, a pipe fixing component 10, a fan 11, and a modular branch air duct 12.

[0053] Both sides of the parallel heat exchange network 3 are equipped with detachable pipe connection components 9 and filters 4. The branch ducts 12 are connected to the parallel heat exchange network 3 through the detachable pipe connection components 9. The filters 4 are installed at the inlet end of the parallel heat exchange network 3 to remove particulate matter and impurities from the outdoor air.

[0054] The inlet top air valve 5, inlet bottom air valve 6, outlet top air valve 7, and outlet bottom air valve 8 are located in the vertical pipe section of the module branch duct 12; and a dynamic control mechanism is adopted to adjust the opening and closing status according to the different cooling demand of the user end, forming a multi-level output, realizing multi-level output of cooling capacity and path optimization.

[0055] The fan 11 is installed inside the horizontal pipes on both sides of the module branch duct 12;

[0056] The modular branch ducts 12 on both sides of the ice storage and cooling device are combined and directly connected to the user terminal to form an air conditioning fan coil unit 13 for cooling the room.

[0057] The parallel heat exchange pipe network 3 is formed by the natural flow of cold outdoor air in winter, which exchanges heat with the cold storage material and freezes the water into ice; thus completing the ice-making and cold storage process.

[0058] By using the parallel heat exchange network 3 inlet and outlet of the closed ice storage cooling device, combined with composite insulation materials to reduce cold loss, an ice storage mode is formed for the transitional season.

[0059] The ice storage cooling body device is combined with the stratified cooler through the detachable pipe connection component 9. Its cooling capacity is transferred from the ice storage cooling body to the heat exchange fluid in the stratified cooler and then delivered to the user end, forming a summer cooling release mode.

[0060] The composite insulation material 2 adopts a double-layer design of high-strength concrete on the outer layer and rubber-plastic insulation cotton on the inner layer. The concrete layer is used to provide structural strength and external environmental isolation protection, while the rubber-plastic insulation cotton reduces cold loss through efficient heat insulation performance, ensuring the long-term stability of the system operation.

[0061] The ice storage and cooling tank 1 is made of stainless steel.

[0062] The parallel heat exchanger network 3 and the stratified cooler are both air ducts, and are made of high-performance stainless steel.

[0063] The detachable pipe connection component 9 can be quickly switched between different working modes; the pipe fixing component 10 is made of high-strength corrosion-resistant material to ensure long-term operational reliability.

[0064] The ice storage and cooling tank 1 is 3 meters high. The parallel heat exchange network 3 is arranged in the ice storage and cooling tank 1 to form an efficient heat transfer network, which avoids local heat transfer deficiency and improves the cold storage efficiency and the overall system performance.

[0065] Two parallel heat exchange tubes form a set of parallel heat exchange tube network 3, which is divided into three layers according to the height of the ice storage and cooling tank 1. The distance between each layer is 1 meter. Each set of parallel heat exchange tube network 3 is arranged at the center of each layer, which is an unfolded axisymmetric form.

[0066] The stratified cooler dynamically adjusts the air valves in the stratified cooler to form a multi-path cooling distribution based on the different cooling needs of the energy-consuming end, thereby achieving precise transfer and efficient utilization of cooling energy.

[0067] The device has three operating modes. The first mode is the winter ice-making mode: In winter, the device starts the ice-making mode and opens the inlet and outlet of the parallel heat exchange pipe network 3 inside the ice storage and cooling body. The outdoor low-temperature cold air flows naturally into the parallel heat exchange pipe network 3. The outdoor cold air flows in the parallel heat exchange pipe network 3 and exchanges heat with the phase change material—water—in the tank, quickly completing the freezing process. By optimizing the layout of the parallel heat exchange pipe network 3, the contact time between the cold air and the water is extended, avoiding the generation of heat exchange dead zones, improving heat exchange efficiency, and ensuring that the water freezes into ice in a short time, realizing efficient ice making driven by natural cold energy.

[0068] The second type of transitional season ice storage mode: During the transitional season, the device switches to ice storage mode, and the inlet and outlet of the parallel heat exchange pipe network 3 inside the ice storage cooling body are sealed. Combined with the external composite insulation material 2, the loss of cold energy is reduced. The double-layer composite insulation material 2 works synergistically with the low temperature environment to effectively maintain the low temperature state inside the ice storage body, ensure the long-term preservation of cold energy, and provide a stable cold source guarantee for summer cooling.

[0069] The third type of summer cooling release mode: In summer, the device switches to cooling release mode and connects the stratified cooler to the parallel heat exchange network 3 through the detachable pipe connection component 9; the cooling capacity is transferred from the ice storage cooling body to the heat exchange fluid in the stratified cooler, and then delivered to the end user through the cooling end; the system adjusts the cooling capacity distribution path through the air valve according to the user's cooling load demand.

[0070] The cooling capacity distribution path can be divided into low cooling capacity demand, medium cooling capacity demand, and high cooling capacity demand.

[0071] For low cooling capacity requirements: activate a single set of parallel heat exchanger network 3, close the inlet top air valve 5, inlet bottom air valve 6, outlet top air valve 7 and outlet bottom air valve 8, limit the flow trajectory of the heat exchange fluid, and precisely control the cooling range.

[0072] Intermediate cooling capacity requirement: Activate two sets of parallel heat exchange pipe networks 3, open the inlet top air valve 5 and the outlet top air valve 7, close the inlet bottom air valve 6 and the outlet bottom air valve 8, and expand the flow path of the heat exchange fluid;

[0073] High cooling capacity demand: Activate all three sets of parallel heat exchanger networks 3, fully open the inlet top air valve 5, inlet bottom air valve 6, outlet top air valve 7 and outlet bottom air valve 8 to form the maximum cooling capacity output path and complete the cooling release process.

[0074] A multi-path cooling system for cross-seasonal natural ice storage and cooling operates as follows in ice-making mode: When the system enters ice-making mode, the water temperature within the ice storage and cooling body is approximately 8°C. The inlet and outlet of the parallel heat exchange network are opened, allowing cold outdoor air to naturally flow into the network during winter. This air exchanges heat with the water, freezing it into ice, thus achieving ice-making and cold storage driven by natural cold energy. The optimized heat exchange network design extends the flow path of the cold air, increasing the heat exchange area and contact time, thereby significantly improving heat exchange efficiency. The network layout effectively avoids the formation of heat exchange dead zones, maximizing the contact area between cold air and water and reducing the impact of thermal isolation areas on heat exchange performance. Furthermore, to ensure system reliability, filters are installed at the inlet and outlet of the heat exchange network to efficiently remove particulate matter and impurities from the air, ensuring the cleanliness of the cold air, reducing damage to the system, and extending the service life of the device.

[0075] The working principle of the ice storage mode is as follows: After the ice-making process is completed, the system switches to ice storage mode. The inlet and outlet of the parallel heat exchange network are closed. The double-layer structure of the outer concrete layer and the inner rubber and plastic insulation cotton works together to effectively isolate external heat sources; combined with the protective effect of the internal low-temperature air, it minimizes the loss of cold energy and ensures that the cold energy in the ice storage body can be stored for a long time, providing a reliable guarantee for cooling in summer.

[0076] The working principle of the cold release mode is as follows: When the system switches to cold release mode, the inlet and outlet of the parallel heat exchange network are opened, and the stratified cooler is connected to the parallel heat exchange network through the pipe connection components. The cooling capacity is transferred from the ice storage cooling body to the heat exchange fluid in the stratified cooler, and finally supplied to the end users through the cooling end.

[0077] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0078] Meanwhile, if the present invention discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection, or a non-detachable fixed connection. Of course, mutually fixed connections can also be replaced by an integral structure.

[0079] Furthermore, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model have the meaning of being similar to, analogous to, or close to such a state or shape. Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured using a one-piece molding process.

[0080] The above embodiments are merely illustrative examples to clearly illustrate the present invention, and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-pass, cold- taken, cross-seasonal, natural ice storage cooling system, characterized by: The ice storage cooling body device and the layered cold taking device are included. The ice storage cooling body device is composed of an ice storage cooling barrel body (1), a composite thermal insulation material (2) and parallel heat exchange pipe networks (3). Two parallel heat exchange pipes form a set of parallel heat exchange pipe networks (3), which are divided into three layers according to the height of the ice storage cooling barrel body (1), and the distance of each layer is 1 meter. Each set of parallel heat exchange pipe networks (3) is arranged at the center position of each layer in the form of axis symmetry. Three sets of parallel heat exchange pipe networks (3) are uniformly distributed in the ice storage cooling barrel body (1). One side of the parallel heat exchange pipe networks (3) is used as the inlet of the heat exchange fluid, and the other side is used as the outlet. The outer wall of the ice storage cooling barrel body (1) is coated with the composite thermal insulation material (2), the top is provided with a thermal insulation outer plate, and the inside is filled with water as the cold storage material. The layered cold taking device is composed of an inlet top air valve (5), an inlet bottom air valve (6), an outlet top air valve (7), an outlet bottom air valve (8), a pipeline detachable connecting part (9), a pipeline fixing part (10), a fan (11) and a module branch air pipe (12). The pipeline detachable connecting parts (9) and filters (4) are installed on both sides of the parallel heat exchange pipe networks (3). The branch air pipe (12) is connected with the parallel heat exchange pipe networks (3) through the pipeline detachable connecting part (9). The filter (4) is arranged at the inlet end of the parallel heat exchange pipe networks (3) to remove particulate matter and impurities in outdoor air. The positions of the inlet top air valve (5), the inlet bottom air valve (6), the outlet top air valve (7) and the outlet bottom air valve (8) are arranged at the vertical pipe section positions of the module branch air pipe (12). A dynamic control mechanism is adopted to adjust the opening and closing states according to different cooling capacity requirements of the user end to form multi-stage output and realize multi-stage output and path optimization of the cooling capacity. The fan (11) is arranged inside the horizontal pipes on both sides of the module branch air pipe (12). The module branch air pipes (12) on both sides of the ice storage cooling body device are combined and directly connected with the user end to form an air conditioner fan coil (13) to cool the indoor environment. Cold air flows into the parallel heat exchange pipe networks (3) naturally in winter to exchange heat with the cold storage material to freeze the water into ice and complete the ice making and cold storage process. The parallel heat exchange pipe networks (3) of the closed ice storage cooling body device and the composite thermal insulation material are combined to reduce the loss of cooling capacity and form an ice storage mode in the off-season. The ice storage cooling body device is combined with the layered cold taking device through the pipeline detachable connecting part (9). The cooling capacity is transferred from the ice storage cooling body to the heat exchange fluid in the layered cold taking device, and then is delivered to the user end to form a summer cold release mode.

2. The cross-season natural ice storage cooling system with multi-path ice taking according to claim 1, characterized in that: The composite thermal insulation material (2) adopts a double-layer combination design of an outer high-strength concrete layer and an inner rubber plastic insulation cotton layer. The concrete layer is used to provide structural strength and external environment isolation protection, and the rubber plastic insulation cotton reduces the loss of cooling capacity through high-efficiency heat insulation performance to ensure the long-term stability of the system operation.

3. The multi-pass, cold- taken, cross-seasonal, natural ice-on- water cooling system of claim 1, wherein: The ice storage cooling barrel body (1) is a stainless steel barrel body.

4. The multi-pass, cold- taken, cross-seasonal, natural ice-on- water cooling system of claim 1, wherein: The pipelines of the parallel heat exchange pipe networks (3) and the layered cold taking device are air pipes, which are made of high-performance stainless steel.

5. The multi-pass, cold- taken, cross-seasonal, natural ice-on- water cooling system of claim 1, wherein: The pipeline detachable connecting part (9) can be quickly switched in different working modes; the pipeline fixing part (10) is made of high-strength corrosion-resistant material, and the reliability of long-term operation is ensured.

6. The cross-season natural ice storage cooling system with multi-path ice harvesting of claim 1, wherein: The ice storage cooling barrel (1) is 3 meters high, and the parallel heat exchange pipe network (3) forms an efficient heat transfer network in the ice storage cooling barrel (1) by optimizing the arrangement, avoids local heat transfer deficiency, and improves the cold storage efficiency and the overall performance of the system.

7. The multi-pass, cold- taken, cross-seasonal, naturally ice- stored cooling system of claim 1, wherein: The layered cold taking device forms multi-path cold distribution and realizes accurate transmission and efficient utilization of cold through dynamic regulation and control of the air valve in the layered cold taking device according to the different cold quantity requirements of the energy using end.

Images