A system and control method for combined operation of dynamic ice storage and water storage

Abstract

The application discloses a kind of dynamic ice storage and water storage combined operation system and control method, belong to heating ventilation air conditioning technical field, its system includes lower water storage water distributor, lower ice water distributor, upper water storage water distributor, upper ice water distributor, energy storage water tank, ice water pump, dynamic ice maker unit, anti-freeze liquid circulating water pump, dual working condition water chiller, cooling water pump, cooling tower, cooling water heat exchange plate, cooling water heat exchange water pump, cold release water pump, cold release plate and pipeline, valve, wherein lower water storage water distributor is below lower ice water distributor, upper water storage water distributor is below upper ice water distributor.The application mainly sets up ice water distributor and water storage water distributor in energy storage water tank by upper and lower relative position simultaneously, collects and analyzes key pipeline temperature data, and then regulates and controls energy storage, energy release work by electric valve, the system structure is simple, the control method has the characteristics of reliable operation, significant energy saving and economic benefit.

Description

Technical Field

[0001] This invention belongs to the field of heating, ventilation and air conditioning technology, and particularly relates to a system and control method for the combined operation of dynamic ice storage and water cooling. Background Technology

[0002] In a dynamic ice storage refrigeration system, a 20% concentration of ethylene glycol refrigerant is cooled to below 0°C in the evaporator of the refrigeration unit. It is then continuously pumped to one side of the heat exchanger of the dynamic ice maker via an ethylene glycol pump. Meanwhile, water in the ice tank flows continuously through the other side of the heat exchanger, where it is subcooled to slightly below 0°C by the ethylene glycol solution. Ultrasonic crystallization is then used to agitate the subcooled water, causing it to crystallize into ice crystals. The ice-water mixture is then pumped to the ice storage tank, where the ice remains, and the water is separated and re-enters the ice maker's heat exchanger, completing the cycle. To obtain controllable subcooled water, the actual system requires raising the water temperature to above 0°C before it enters the ice maker to eliminate tiny ice crystals. Common methods for raising the inlet temperature include using waste heat from air conditioning return water, waste heat from the condenser of the main unit, and external high-grade energy input. Free or inexpensive low-grade heat is used whenever possible to address the safety and efficiency issues of system operation.

[0003] The key feature of a dynamic ice storage system is that the ice produced is a loose, flowing ice slurry. During conventional ice melting for cooling, the ice slurry mixes with water in an ice tank, indirectly absorbing heat from the air conditioning side's water system through a heat exchanger. The ice melts into water, providing low-temperature chilled water to the air conditioning system. When all the ice in the ice tank has melted, it is filled with water at near 0°C. Although the latent heat of phase change from the ice is no longer present, the sensible heat of this water remains considerable and can continue to be used for cooling.

[0004] In addition, during the initial stage of project operation or the transitional season, the system's cooling load demand is low. If the ice storage mode is activated, the system will have low cooling efficiency because the ethylene glycol temperature is low during ice storage operation. Summary of the Invention

[0005] The technical problem to be solved by this invention is to provide a system and control method for the combined operation of dynamic ice storage and water cooling, which addresses the shortcomings of the prior art. By integrating water cooling technology into a conventional dynamic ice storage system, a new system form is constructed. By collecting and analyzing the temperature data of key pipelines, and then regulating the energy storage and release operation through electric valves, the system structure is simple. This control method has the characteristics of reliable operation, significant energy saving and economic benefits.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A system combining dynamic ice storage and water-based cooling operation includes a lower water-based cooling water distributor, a lower ice-water distributor, an upper water-based cooling water distributor, an upper ice-water distributor, an energy storage tank, an ice-water pump, a dynamic ice-making unit, an antifreeze circulating water pump, a dual-condition chiller unit, a cooling water pump, a cooling tower, a cooling water heat exchanger, a cooling water heat exchanger hot water pump, a cooling water release pump, and a cooling water heat exchanger. The lower water storage and cooling water distributor is located inside the energy storage tank and below the lower ice water distributor, and the upper water storage and cooling water distributor is located inside the energy storage tank and below the upper ice water distributor. The ice water pump is connected to the return water pipe of the ice maker, with one side connected to the lower ice water distributor and the upper water storage distributor, and the other side connected to the inlet of the dynamic ice maker unit; the upper ice water distributor and the lower water storage distributor are connected to the outlet of the dynamic ice maker unit through the ice maker water supply pipe. The antifreeze circulating water pump is connected to the return pipe of the chiller unit, with one side connected to the dynamic ice maker and the other side connected to the dual-condition chiller unit; the dual-condition chiller unit is connected to the cooling tower through the cooling tower return water pipe; the cooling water pump is connected to the cooling tower through the cooling tower supply and return water pipes, with one side connected to both the dual-condition chiller unit and the cooling water heat exchanger, and the other side connected to both the cooling tower and the cooling water heat exchanger. The cooling water heat exchanger pump is connected to the secondary side return water pipe of the cooling water heat exchanger plate, with one side connected to the return water pipe of the ice maker and the other side connected to the secondary side inlet of the cooling water heat exchanger plate; the secondary side outlet of the cooling water heat exchanger plate is connected to the return water pipe of the ice maker plate through the secondary side supply water pipe of the cooling water heat exchanger plate. The cooling water pump is connected to the primary side water supply pipe of the cooling plate heat exchanger, with one side connected to the primary side inlet of the cooling plate heat exchanger and the other side connected to the lower water storage and distribution device; the primary side outlet of the cooling plate heat exchanger is connected to the upper water storage and distribution device through the primary side return water pipe of the cooling plate heat exchanger.

[0007] As a further preferred embodiment of the dynamic ice storage and water-based cold storage combined operation system of the present invention, the system further includes a first regulating valve, a second regulating valve, a third regulating valve and a fourth regulating valve. The first regulating valve is located on the secondary side water supply pipe of the cooling water heat exchange plate, the second regulating valve is located on the water-based cold storage supply and return water bypass pipe, the third regulating valve is located on the air conditioning side efficiency enhancement water pipe, and the fourth regulating valve is located on the cold release supply and return water bypass pipe.

[0008] As a further preferred embodiment of the dynamic ice storage and water cooling combined operation system of the present invention, the system also includes first to sixth switching valves respectively installed on the pipelines connecting the lower ice-water distributor, the upper water cooling distributor, the lower water cooling distributor, the return water pipe on the primary side of the cooling plate and the supply water pipe on the primary side of the cooling plate.

[0009] As a further preferred embodiment of the system for the combined operation of dynamic ice storage and water cooling of the present invention, the ice water pump, antifreeze circulating water pump, cooling water pump, cooling water heat exchange pump and cooling water release pump are variable frequency pumps.

[0010] As a further preferred embodiment of the system for the combined operation of dynamic ice storage and water cooling of the present invention, the first to fourth regulating valves and the first to sixth switching valves are electric valves.

[0011] A control method for a system based on the combined operation of dynamic ice storage and water-based cooling includes the following steps: Ice storage mode: Open the first and third switch valves, close the second, fourth (V4), fifth and sixth switch valves, and control the temperature of the ice water entering the dynamic ice maker unit to the first set temperature T1 by adjusting the first regulating valve. Standalone water storage cooling mode: Set the outlet water temperature of the dynamic ice maker to be lower than 4°C, open the second and fourth switch valves, close the first, third, fifth and sixth switch valves, and control the water temperature entering the energy storage tank to the second set temperature T2 by adjusting the second regulating valve. Ice storage and cooling operation: Open the first switch valve, the third switch valve, the fifth switch valve and the sixth switch valve, close the second switch valve and the fourth switch valve, and control the temperature of the ice water entering the dynamic ice maker to the first set temperature T1 by adjusting the third regulating valve. Ice melting operation: Open the fifth and sixth switch valves, close the first, second, third and fourth switch valves, and control the water temperature entering the energy storage tank to the third set temperature T3 by adjusting the fourth regulating valve. Water storage and cooling release operation: Open the fifth and sixth switch valves, close the first, second, third, and fourth switch valves, and control the inlet water temperature T3 of the energy storage tank to be lower than the outlet water temperature T4 of the secondary side of the cooling plate heat exchanger by a set difference by adjusting the operating frequency of the cooling water pump.

[0012] As a control method for a system based on the combined operation of dynamic ice storage and water-based cooling, under the single water-based cooling condition, the second set temperature T2 is controlled at 4°C.

[0013] As a control method for a system based on the combined operation of dynamic ice storage and water-based cooling, under the water-based cooling release condition, the set difference is 1℃ or other values.

[0014] As a control method for a system based on the combined operation of dynamic ice storage and water-based cooling, under the ice melting condition, the medium in the energy storage tank is an ice-water mixture.

[0015] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects: This invention utilizes a system that simultaneously installs ice-water distributors and water-cooled water distributors at opposite positions within an energy storage tank. It collects and analyzes temperature data from key pipelines, and then regulates energy storage and release via electric valves. The system has a simple structure, and the control method is characterized by reliable operation and significant energy savings and economic benefits. It effectively solves the problem of dynamic ice makers becoming blocked due to the introduction of water containing tiny ice crystals; it addresses the issue of low cooling efficiency caused by low cooling loads during the initial stages of project operation or transitional seasons when ice storage is employed; and it resolves the problem of wasted cooling capacity if the water temperature in the ice tank remains lower than the terminal air conditioning water supply temperature after ice melting ends. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a system and control method for a dynamic ice storage and water-based cooling combined operation designed according to the present invention. Figure 2 This is a control principle diagram of a system and control method for the combined operation of dynamic ice storage and water cooling designed for this invention.

[0018] The labels in the diagram are as follows: 1-Lower water storage distributor, 2-Lower ice water distributor, 3-Upper water storage distributor, 4-Upper ice water distributor, 5-Storage water tank, 6-Ice water pump, 7-Dynamic ice maker unit, 8-Antifreeze circulating water pump, 9-Dual-condition chiller unit, 10-Cooling water pump, 11-Cooling tower, 12-Cooling water heat exchanger plate, 13-Cooling water heat exchanger hot water pump, 14-Cooling water pump, 15-Cooling plate heat exchanger, 1a-Water storage cooling water supply and return bypass pipe, 1b-Cooling water supply and return bypass pipe, 3a-Air conditioning side efficiency enhancement water pipe, 7a-Ice maker return water pipe, 7b-Ice maker supply water pipe, 9a-Chiller unit return liquid pipe, 9b-Chiller unit supply liquid Pipes: 11a - Cooling tower return water pipe, 11b - Cooling tower supply water pipe, 12a - Cooling water heat exchanger plate secondary side return water pipe, 12b - Cooling water heat exchanger plate secondary side supply water pipe, 15a - Cooling plate heat exchanger plate primary side supply water pipe, 15b - Cooling plate heat exchanger plate primary side return water pipe, 15c - Cooling plate heat exchanger plate secondary side supply water pipe, 15d - Cooling plate heat exchanger plate secondary side return water pipe, VT1 is the first regulating valve, VT2 is the second regulating valve, VT3 is the third regulating valve, VT4 is the fourth regulating valve, V1 is the first switching valve, V2 is the second switching valve, V3 is the third switching valve, V4 is the fourth switching valve, V5 is the fifth switching valve, V6 is the sixth switching valve. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. The purpose and effects of the present invention will become clearer. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] This system integrates water-based cooling technology into a conventional dynamic ice storage system, constructing a novel system architecture. It collects and analyzes temperature data from key pipelines, then regulates energy storage and release via electric valves. During operation, the pump flow rate, head, and power consumption are adjusted by changing the pump operating frequency; the water flow direction and flow rate are altered by valves; and the water temperature in key pipelines is changed through a combination of pump operating frequency and valve control. The cooling tower is paired with a dual-mode chiller unit, which in turn is paired with a dynamic ice-making unit. The dynamic ice-making unit is further paired with the energy storage tank, heat exchanger plate, and cooling water heat exchanger plate. Both the dual-mode chiller unit and the cooling tower fan are equipped with variable frequency drives.

[0021] This invention discloses a system for the combined operation of dynamic ice storage and water-based cooling, which, in practical applications, such as... Figure 1As shown, the system consists of the following main components: lower water storage distributor 1, lower ice water distributor 2, upper water storage distributor 3, upper ice water distributor 4, energy storage tank 5, ice water pump 6, dynamic ice maker 7, antifreeze circulating water pump 8, dual-condition chiller unit 9, cooling water pump 10, cooling tower 11, cooling water heat exchanger 12, cooling water heat exchanger hot water pump 13, cooling water pump 14, cooling water heat exchanger 15, water storage supply and return bypass pipe 1a, cooling water supply and return bypass pipe 1b, and air conditioning side efficiency enhancement. Water pipe 3a, ice maker return water pipe 7a, ice maker supply water pipe 7b, chiller unit return liquid pipe 9a, chiller unit supply liquid pipe 9b, cooling tower return water pipe 11a, cooling tower supply water pipe 11b, cooling water heat exchanger plate secondary side return water pipe 12a, cooling water heat exchanger plate secondary side supply water pipe 12b, cooling plate heat release plate primary side supply water pipe 15a, cooling plate heat release plate primary side return water pipe 15b, cooling plate heat release plate secondary side supply water pipe 15c, cooling plate heat release plate secondary side return water pipe 15d, first to fourth regulating valves (VT1, VT2, VT3, VT4) and first to sixth switching valves (V1, V2, V3, V4, V5, V6); wherein the lower water storage cold water distributor 1 is located below the lower ice water distributor 2, and the upper water storage cold water distributor 3 is located below the upper ice water distributor 4; The ice water pump 6, antifreeze circulating water pump 8, cooling water pump 10, cooling water heat exchanger pump 13, and cooling water release pump 14 are variable frequency pumps. The ice water pump 6 is located on the ice maker's return water pipe 7a, with the lower ice water distributor 2 and the upper water storage distributor 3 connected to the left side, and the dynamic ice maker unit 7 connected to the right side. The upper ice water distributor 4 and the lower water storage distributor 1 are connected to the dynamic ice maker unit 7 via the ice maker's water supply pipe 7b. The antifreeze circulating water pump 8 is located on the chiller unit's return water pipe 9a, with the dynamic ice maker unit 7 connected to the left side and the dual-condition chiller unit 9 connected to the right side. The dual-condition chiller unit 9 is connected to the cooling tower 11 via the cooling tower return water pipe 11a. The cooling water pump 10 is connected to the cooling tower 11 via the cooling tower water supply pipe 11b, with one side connected to the dual-condition chiller unit 9 and the cooling water heat exchanger 12, and the other side connected to the cooling tower 11 and the cooling water heat exchanger 12. The cooling water pump 10 is connected to the dual-condition chiller unit 9 and the cooling water heat exchanger 12 on the left side, and to the cooling tower 11 and the cooling water heat exchanger 12 on the right side; the cooling water hot water pump 13 is located on the secondary side return water pipe 12a of the cooling water heat exchanger, connected to the ice maker return water pipe 7a on the left side and to the cooling water heat exchanger 12 on the right side; the cooling water pump 14 is located on the primary side supply water pipe 15a of the cooling water heat exchanger, connected to the cooling water heat exchanger 15 on the left side and to the lower water storage and distribution device 1 on the right side. The first to fourth regulating valves (VT1, VT2, VT3, VT4) and the first to sixth switching valves (V1, V2, V3, V4, V5, V6) are electric valves; the electric valves automatically adjust according to the operating conditions and the temperature of the critical pipelines. The first regulating valve VT1 is located on the secondary side water supply pipe 12b of the cooling water heat exchange plate, the second regulating valve VT2 is located on the water storage cold supply and return water bypass pipe 1a, the third regulating valve VT3 is located on the air conditioning side efficiency enhancement water pipe 3a, and the fourth regulating valve VT4 is located on the cold release supply and return water bypass pipe 1b. The first switch valve V1 is located on the pipe of the lower chilled water distributor 2, the second switch valve V2 is located on the pipe of the upper chilled water distributor 3, the third switch valve V3 is located on the pipe of the upper chilled water distributor 4, the fourth switch valve V4 is located on the pipe of the lower chilled water distributor 1, the fifth switch valve V5 is located on the return water pipe 15b on the primary side of the cooling plate heat exchanger, and the sixth switch valve V6 is located on the supply water pipe 15a on the primary side of the cooling plate heat exchanger. Ice storage mode: Open the first switch valve V1 and the third switch valve V3, and close the second switch valve V2, the fourth switch valve V4, the fifth switch valve V5 and the sixth switch valve V6. Adjust the first regulating valve VT1 to control the temperature of the ice water entering the dynamic ice maker 7 to the first set temperature T1 (adjustable). Water molecules need to attach to a "crystal nucleus" to begin to arrange themselves into ice in an orderly manner. The ice crystal itself is the most perfect crystal nucleus. In order to prevent the crystallization chain reaction after water containing tiny ice crystals is pumped into the dynamic ice maker 7 and reduce the ice-making efficiency, the water in the pipe of the lower ice water distributor 2 is sent to the inlet of the dynamic ice maker 7 after absorbing heat through the cooling water heat exchange plate 12. By monitoring the ice water temperature T1, it is ensured that tiny ice crystals are eliminated. The waste heat of the main unit condensation is used to improve the overall energy efficiency of the main unit. The control method for the combined operation of dynamic ice storage and water-based cooling designed in this invention can be applied in practical situations, such as... Figure 2 As shown, the following steps can be followed: Under water storage cooling only, set the outlet water temperature of dynamic ice maker 7 to be below 4℃. Open the second switch valve V2 and the fourth switch valve V4, and close the first switch valve V1, the third switch valve V3, the fifth switch valve V5, and the sixth switch valve V6. Control the water temperature entering the energy storage tank 5 to the second set temperature T2 by adjusting the second regulating valve VT2. This mode is suitable for the initial stage of project operation or during the transition season, where the energy storage tank 5 can be used for two purposes. Under standard atmospheric pressure, the water density is greatest at a water temperature of 4℃, which is convenient for temperature-layered storage. Considering external disturbances (such as pipeline temperature rise, pump start-up and shutdown, etc.), the stability of the cold storage temperature of 4℃ should not be placed on the dual-condition chiller unit 9, otherwise it will cause frequent adjustments to the dual-condition chiller unit 9. The outlet water temperature of the dynamic ice maker unit 7 is set below 4℃ to provide control margin. The cold storage return water is mixed with the outlet water temperature of the dynamic ice maker unit 7 through the cold storage supply and return water bypass pipe 1a and then sent into the energy storage tank 5 to ensure that the temperature T2 is 4℃, thereby improving the overall controllability and stability of the system. In the simultaneous ice storage and supply mode, the first switch valve V1, the third switch valve V3, the fifth switch valve V5, and the sixth switch valve V6 are opened, while the second switch valve V2 and the fourth switch valve V4 are closed. The temperature of the ice water entering the dynamic ice maker 7 is controlled to the first set temperature T1 (adjustable) by adjusting the third regulating valve VT3, thus saving ice storage energy consumption. For nighttime cooling loads that are small and not within the high-efficiency operating range of the base load host, simultaneous ice storage and supply can achieve certain economic benefits. To ensure that the water entering the dynamic ice maker 7 does not contain tiny ice crystals, the amount of return water flowing into the primary side of the cooling plate heat exchanger 15 is adjusted, and the heat comes from the air conditioning water on the secondary side of the cooling plate heat exchanger 15, reducing ice storage energy consumption. The waste heat on the air conditioning side is perfectly utilized to achieve energy recovery within the system, resulting in significant energy saving. During the ice-melting operation, the fifth switch valve V5 and the sixth switch valve V6 are opened, while the first switch valve V1, the second switch valve V2, the third switch valve V3, and the fourth switch valve V4 are closed. The water temperature entering the energy storage tank 5 is controlled to the third set temperature T3 (adjustable) by adjusting the fourth regulating valve VT4. The heat exchanger 15 needs to simultaneously meet both the ice-melting and water storage cooling conditions. If the logarithmic mean temperature difference between the primary and secondary sides of the heat exchanger 15 is too large during ice melting, the effective area of ​​the heat exchanger that needs to be adjusted will be too small when completing the same heat exchange task, resulting in low heat exchanger efficiency due to energy loss. At the same time, adjusting the primary side outlet water T3 of the heat exchanger 15 helps control the ice-melting rate. During off-peak electricity price periods, increasing T3 reduces the ice-melting rate, which helps to stably and fully utilize the stored ice and ensures that the water temperature entering the heat exchanger 15 is within a safe range, thus avoiding ice blockage. In the water-storage cooling and release mode, the fifth switch valve V5 and the sixth switch valve V6 are opened, and the first switch valve V1, the second switch valve V2, the third switch valve V3, and the fourth switch valve V4 are closed. By adjusting the operating frequency of the release water pump 14, the inlet water temperature T3 of the energy storage tank 5 is controlled to be 1℃ lower than the secondary side outlet water temperature T4 of the release plate heat exchanger 15 (adjustable). This mode is suitable for release of cold after ice melting, maximizing the utilization of the cold storage capacity, extending the downtime of the main unit, improving the stability of system operation, and bringing significant energy saving and economic benefits. At the same time, by monitoring the water temperature on both sides of the release plate heat exchanger 15, the main unit can be seamlessly started and continuously supply cooling when the water temperature of the energy storage tank 5 rises and the cooling capacity is insufficient, avoiding temperature shock to the air conditioning side. As a preferred technical solution of the present invention, the medium in the energy storage tank 5 under the ice-melting condition is an ice-water mixture. The system and control method for the combined operation of dynamic ice storage and water-based cold storage designed in the above technical solution solves the problem of dynamic ice makers failing to operate due to ice blockage caused by the pumping of water containing tiny ice crystals; it solves the problem of low cold storage efficiency caused by low cooling load during the initial stage of project operation or transitional seasons; and it solves the problem of wasted cooling capacity if the water temperature in the ice tank remains lower than the terminal air conditioning water supply temperature after ice melting. The present invention mainly achieves this by simultaneously setting ice-water distributors and water-based cold storage distributors at relatively opposite positions in the energy storage tank, collecting and analyzing key pipeline temperature data, and then regulating the energy storage and release operations via electric valves. The system has a simple structure, and the control method has the characteristics of reliable operation and significant energy saving and economic benefits.

[0022] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A system for the combined operation of dynamic ice storage and water-based cooling, characterized in that: Includes a lower water storage and cooling water distributor (1), a lower ice water distributor (2), an upper water storage and cooling water distributor (3), an upper ice water distributor (4), an energy storage tank (5), an ice water pump (6), a dynamic ice maker (7), an antifreeze circulating water pump (8), a dual-condition chiller unit (9), a cooling water pump (10), a cooling tower (11), a cooling water heat exchanger plate heat exchanger (12), a cooling water heat exchanger hot water pump (13), a cooling water pump (14), and a cooling water heat exchanger plate heat exchanger (15). The lower water storage and cooling water distributor (1) is located inside the energy storage tank (5) and below the lower ice water distributor (2), and the upper water storage and cooling water distributor (3) is located inside the energy storage tank (5) and below the upper ice water distributor (4). The ice water pump (6) is connected to the return water pipe (7a) of the ice maker, with one side connected to the lower ice water distributor (2) and the upper water storage distributor (3), and the other side connected to the inlet of the dynamic ice maker unit (7); the upper ice water distributor (4) and the lower water storage distributor (1) are connected to the outlet of the dynamic ice maker unit (7) through the ice maker water supply pipe (7b); The antifreeze circulating water pump (8) is connected to the return pipe (9a) of the chiller unit, with one side connected to the dynamic ice maker (7) and the other side connected to the dual-condition chiller unit (9); the dual-condition chiller unit (9) is connected to the cooling tower (11) through the cooling tower return water pipe (11a); the cooling water pump (10) is connected to the cooling tower (11) through the cooling tower supply water pipe (11b), with one side connected to the dual-condition chiller unit (9) and the cooling water heat exchanger (12), and the other side connected to the cooling tower (11) and the cooling water heat exchanger (12). The cooling water heat exchanger pump (13) is connected to the secondary side return water pipe (12a) of the cooling water heat exchanger plate, with one side connected to the return water pipe (7a) of the ice maker and the other side connected to the secondary side inlet of the cooling water heat exchanger plate (12); the secondary side outlet of the cooling water heat exchanger plate (12) is connected to the return water pipe (7a) of the ice maker through the secondary side supply water pipe (12b) of the cooling water heat exchanger plate. The cooling water pump (14) is connected to the primary side water supply pipe (15a) of the cooling plate heat exchanger. One side of the pump is connected to the primary side inlet of the cooling plate heat exchanger (15), and the other side is connected to the lower water storage and distribution device (1). The primary side outlet of the cooling plate heat exchanger (15) is connected to the upper water storage and distribution device (3) through the primary side return water pipe (15b) of the cooling plate heat exchanger.

2. The system for combined dynamic ice storage and water-based cooling according to claim 1, characterized in that, The system also includes a first regulating valve (VT1), a second regulating valve (VT2), a third regulating valve (VT3), and a fourth regulating valve (VT4). The first regulating valve (VT1) is located on the secondary side supply water pipe (12b) of the cooling water heat exchange plate, the second regulating valve (VT2) is located on the water storage cooling supply and return water bypass pipe (1a), the third regulating valve (VT3) is located on the air conditioning side efficiency enhancement water pipe (3a), and the fourth regulating valve (VT4) is located on the cooling release supply and return water bypass pipe (1b).

3. A system for combined dynamic ice storage and water-based cooling operation according to claim 1, characterized in that, The system also includes first to sixth switch valves (V1, V2, V3, V4, V5, V6) respectively installed on the pipes connecting the lower chilled water distributor (2), the upper chilled water distributor (3), the upper chilled water distributor (4), the lower chilled water distributor (1), the return water pipe (15b) on the primary side of the cooling plate heat exchanger, and the supply water pipe (15a) on the primary side of the cooling plate heat exchanger.

4. The system for combined dynamic ice storage and water-based cooling operation according to claim 1, characterized in that, The ice water pump (6), antifreeze circulating water pump (8), cooling water pump (10), cooling water heat exchange pump (13) and cooling water release pump (14) are variable frequency pumps.

5. A system for combined dynamic ice storage and water-based cooling operation according to claim 2 or 3, characterized in that, The first to fourth regulating valves (VT1, VT2, VT3, VT4) and the first to sixth switching valves (V1, V2, V3, V4, V5, V6) are electric valves.

6. A control method for a system based on the combined operation of dynamic ice storage and water-based cooling as described in any one of claims 1 to 5, characterized in that, Specifically, it includes the following steps: Ice storage mode: Open the first switch valve (V1) and the third switch valve (V3), close the second switch valve (V2), the fourth switch valve (V4), the fifth switch valve (V5) and the sixth switch valve (V6), and control the temperature of the ice water entering the dynamic ice maker (7) to the first set temperature T1 by adjusting the first regulating valve (VT1); Standalone water storage cooling mode: Set the outlet water temperature of the dynamic ice maker (7) to be lower than 4°C, open the second switch valve (V2) and the fourth switch valve (V4), close the first switch valve (V1), the third switch valve (V3), the fifth switch valve (V5) and the sixth switch valve (V6), and control the water temperature entering the energy storage tank (5) to the second set temperature T2 by adjusting the second regulating valve (VT2); Ice storage and cooling operation: Open the first switch valve (V1), the third switch valve (V3), the fifth switch valve (V5) and the sixth switch valve (V6), close the second switch valve (V2) and the fourth switch valve (V4), and control the temperature of the ice water entering the dynamic ice maker (7) to the first set temperature T1 by adjusting the third regulating valve (VT3); Ice melting operation: Open the fifth switch valve (V5) and the sixth switch valve (V6), close the first switch valve (V1), the second switch valve (V2), the third switch valve (V3) and the fourth switch valve (V4), and control the water temperature entering the energy storage tank (5) to the third set temperature T3 by adjusting the fourth regulating valve (VT4); Water storage and cooling release operation: Open the fifth switch valve (V5) and the sixth switch valve (V6), close the first switch valve (V1), the second switch valve (V2), the third switch valve (V3) and the fourth switch valve (V4), and adjust the operating frequency of the cooling water pump (14) to control the inlet water temperature T3 of the energy storage tank (5) to be lower than the secondary side outlet water temperature T4 of the cooling plate heat exchanger (15) by a set difference.

7. The control method for a system based on the combined operation of dynamic ice storage and water-based cooling as described in claim 6, characterized in that: Under the single water storage cooling condition, the second set temperature (T2) is controlled at 4°C.

8. The control method for a system based on the combined operation of dynamic ice storage and water-based cooling according to claim 6, characterized in that, Under the aforementioned water-based cooling and heat release conditions, the set difference is 1°C or another value.

9. The control method for a system based on the combined operation of dynamic ice storage and water-based cooling according to claim 6, characterized in that, Under the ice-melting condition, the medium in the energy storage tank (5) is an ice-water mixture.

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