A dynamic ice system that prevents ice blockage and maintains water outlet temperature

Abstract

The utility model relates to energy equipment technical field discloses a kind of dynamic ice systems of ice blocking prevention and maintaining outlet temperature, including ice storage tank, ice storage tank inner wall is sequentially fixedly connected with ice slurry conveying branch pipe, stirring rod, semi-permeable membrane from top to bottom, the top of the ice slurry conveying branch pipe is fixedly connected with multiple ice slurry conveying spout, ice storage tank one side inside is fixedly connected with gas pipe, the one end of gas pipe is fixedly connected with air pump, air pump is located the outer side wall of ice storage tank, air pump outer wall is fixedly connected with air suction pipe and transmission shaft, the one side electric connection of air pump has monitoring line one, the one end electric connection of monitoring line one has monitoring device.In the utility model, ice crystal and water are completely separated by semi-permeable membrane, fine ice crystals entering the inlet of subcooling plate exchanger can be filtered out during ice storage, ice blocking in the plate exchanger is avoided, ice crystal filter is saved, the size of dynamic ice maker can be reduced, and the effects of preventing ice blocking and maintaining outlet temperature are achieved.

Description

Technical Field

[0001] This utility model relates to the field of energy equipment technology, and in particular to a dynamic ice system that prevents ice blockage and maintains the outlet water temperature. Background Technology

[0002] Ice storage central air conditioning refers to a system where the refrigeration unit is turned on during off-peak electricity hours at night. Utilizing dynamic ice storage technology, it prepares some or all of the cooling capacity required for a building and stores it as ice in an ice storage device. During peak electricity hours, the ice is melted to provide cooling for the air conditioning system. By fully utilizing off-peak electricity, it significantly reduces the operating costs of central air conditioning and also provides a significant peak-shaving and valley-filling function for the power grid, improving the economic efficiency of grid operation.

[0003] Dynamic ice storage technology refers to the direct heat exchange between refrigerant and water, causing the water to crystallize into flocculent ice crystals. Simultaneously, the formation and melting processes do not require secondary heat exchange, thus significantly improving the energy efficiency of air conditioning. The pores of the ice slurry are much larger than those of solid ice, and it directly exchanges heat with the return water, resulting in excellent load response performance.

[0004] However, traditional dynamic ice storage technology has certain problems. During the ice storage process, fine ice crystals can easily enter the supercooling plate inlet, eventually leading to ice blockage. Once ice blockage occurs, it not only hinders the normal circulation of refrigerant or water, reducing ice-making and melting efficiency, but also damages equipment, increases maintenance costs and downtime, and seriously affects the stable operation and cooling supply of the dynamic ice storage system. Therefore, a dynamic ice system that prevents ice blockage and maintains the outlet water temperature is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a dynamic ice system that prevents ice blockage and maintains the outlet water temperature, aiming to improve the problems of easy ice blockage and difficulty in controlling the outlet water temperature in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dynamic ice system for preventing ice blockage and maintaining outlet water temperature includes an ice storage tank. From top to bottom, an ice slurry delivery branch pipe, a stirring rod, and a semi-permeable membrane are fixedly connected to the inner wall of the ice storage tank. Multiple ice slurry delivery nozzles are fixedly connected to the top of the ice slurry delivery branch pipe. An air supply pipe is fixedly connected to one side of the ice storage tank, and an air pump is fixedly connected to one end of the air supply pipe. The air pump is located on the outer wall of the ice storage tank, and an air intake pipe and a drive shaft are fixedly connected to the outer wall of the air pump. A monitoring line is electrically connected to one side of the air pump, and a monitoring device is electrically connected to one end of the monitoring line. An ice-melting dry pipe is fixedly connected to the other side of the ice storage tank, with one end extending to the bottom of the inner wall of the ice storage tank and the other end fixedly connected to a temperature sensor. An exhaust valve is fixedly connected to the outer wall of the ice-melting dry pipe, and an output component is provided on one side of the temperature sensor.

[0008] As a further description of the above technical solution:

[0009] The output component includes a second monitoring line, one end of which is electrically connected to the inside of the temperature sensor, which is located on the outer wall of the ice storage tank, and the other end of the second monitoring line is electrically connected to the inside of the monitoring device.

[0010] As a further description of the above technical solution:

[0011] The monitoring device is electrically connected to a signal line on one side, and an ice-melting pump is electrically connected to one end of the signal line. The ice-melting pump draws cold water from the ice storage tank through the ice-melting main pipe.

[0012] As a further description of the above technical solution:

[0013] The output end of the ice-melting pump is fixedly connected to an ice water supply main pipe. When melting ice, the ice-melting pump draws cold water from the ice storage tank.

[0014] As a further description of the above technical solution:

[0015] An ice-making water intake pipe is fixedly connected to the outer wall of the ice water supply main pipe, and a dynamic ice-making unit is fixedly connected to one end of the ice-making water intake pipe.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the dynamic ice maker is fixedly connected to an ice slurry conveying main pipe, through which the ice slurry produced by the dynamic ice maker is transported to the ice storage tank.

[0018] As a further description of the above technical solution:

[0019] One end of the ice water supply main is fixedly connected to an ice melting plate heat exchanger, and the outer wall of the ice melting plate heat exchanger is fixedly connected to an ice water return main.

[0020] This utility model has the following beneficial effects:

[0021] In this invention, ice crystals and water are completely separated by a semi-permeable membrane. During ice storage, fine ice crystals entering the inlet of the heat exchanger can be filtered out, preventing ice blockage inside the heat exchanger and eliminating the need for an ice crystal filter. This allows for a reduction in the size of the dynamic ice maker. Furthermore, during the ice melting process, an air pump is activated to input air into the ice water, mixing the water temperature. Simultaneously, during ice melting, the air pump motor drives the rotating shaft installed in the upper area of ​​the semi-permeable membrane to rotate, stirring the accumulated ice crystals and preventing ice slurry from clumping and affecting ice melting. This achieves the effects of utilizing energy, preventing ice blockage, and maintaining the outlet water temperature. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the planar structure of a dynamic ice system that prevents ice blockage and maintains the outlet water temperature according to the present invention.

[0023] Figure 2 This is a schematic diagram of the temperature maintenance structure of a dynamic ice system that prevents ice blockage and maintains the outlet water temperature, as proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the overall structure and operation of a dynamic ice system that prevents ice blockage and maintains the outlet water temperature, as proposed in this utility model.

[0025] Legend:

[0026] 1. Semi-permeable membrane; 2. Air pump; 21. Air supply pipe; 22. Air intake pipe; 23. Drive shaft; 24. Stirring rod; 25. Monitoring line one; 3. Ice-making and melting main pipe; 31. Ice water supply main pipe; 32. Ice-making water intake main pipe; 33. Exhaust valve; 4. Ice water return main pipe; 5. Ice slurry conveying main pipe; 51. Ice slurry conveying branch pipe; 52. Ice slurry conveying nozzle; 6. Ice-making and melting pump; 61. Signal line; 7. Ice melting plate heat exchanger; 8. Dynamic ice-making unit; 9. Monitoring device; 10. Temperature sensor; 101. Monitoring line two; 11. Ice storage tank. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1-3This utility model provides an embodiment of a dynamic ice system that prevents ice blockage and maintains the outlet water temperature. The system includes an ice storage tank 11. From top to bottom, an ice slurry delivery branch pipe 51, a stirring rod 24, and a semi-permeable membrane 1 are fixedly connected to the inner wall of the ice storage tank 11. Multiple ice slurry delivery nozzles 52 are fixedly connected to the top of the ice slurry delivery branch pipe 51. These nozzles 52 are used to evenly spray ice slurry into the interior of the ice storage tank 11, promoting ice slurry distribution and heat transfer efficiency. An air supply pipe 21 is fixedly connected to the inside of one side of the ice storage tank 11. The function of the air supply pipe 21 is to introduce air into the ice storage tank 11 to increase water agitation and mixing, ensuring uniform water temperature. An air pump 2 is fixedly connected to one end of the air supply pipe 21. The air pump 2 is located on the outer wall of the ice storage tank 11, and its main function is to generate airflow. To prevent cavitation and improve system heat dissipation, an air intake pipe 22 and a drive shaft 23 are fixedly connected to the outer wall of the air pump 2. The design of the air intake pipe 22 allows air to be quickly drawn into the system, while the drive shaft 23 is connected to the stirring rod 24 and is responsible for driving the movement of the stirring rod 24. A monitoring line 25 is electrically connected to one side of the air pump 2, and a monitoring device 9 is electrically connected to one end of the monitoring line 25. The monitoring device 9 is used to monitor the operating status and temperature changes of the system in real time for adjustment and control. An ice-melting dry pipe 3 is fixedly connected to the other side of the ice storage tank 11. One end of the ice-melting dry pipe 3 extends to the bottom of the inner wall of the ice storage tank 11, and its function is to draw cold water from the ice storage tank 11 for subsequent ice melting and ice making processes. The other end of the ice-melting dry pipe 3 is fixedly connected to a temperature... Sensor 10, the function of temperature sensor 10 is to monitor the temperature of water in the pipeline in real time to ensure that the outlet water temperature is within the ideal range. An air vent valve 33 is fixedly connected to the outer wall of the ice-melting main pipe 3. The air vent valve 33 is used to release excess gas in the system and maintain stable system operation. An output component is provided on one side of temperature sensor 10. The output component includes monitoring line 2 101, one end of which is electrically connected to the inside of temperature sensor 10. Temperature sensor 10 is located on the outer wall of ice storage tank 11. One end of monitoring line 2 101 is electrically connected to the inside of monitoring device 9. A signal line 61 is electrically connected to one side of monitoring device 9. One end of signal line 61 is electrically connected to ice-melting pump 6. Ice-melting pump 6 draws cold water from ice storage tank 11 through ice-melting main pipe 3. To provide the system with the necessary cooling water source, an ice-making water intake pipe 32 is fixedly connected to the outer wall of the ice water supply main pipe 31. A dynamic ice-making unit 8 is fixedly connected to one end of the ice-making water intake pipe 32. The dynamic ice-making unit 8 is responsible for producing ice slurry for subsequent use. An ice slurry delivery pipe 5 is fixedly connected to the outer wall of the dynamic ice-making unit 8. The ice slurry produced by the dynamic ice-making unit 8 is delivered to the ice storage tank 11 through the ice slurry delivery pipe 5 to ensure the cooling effect in the ice storage tank 11. An ice-melting plate heat exchanger 7 is fixedly connected to one end of the ice water supply main pipe 31. The main function of the ice-melting plate heat exchanger 7 is to perform heat exchange to effectively exchange heat between the ice-melting water and the cold water. An ice water return pipe 4 is fixedly connected to the outer wall of the ice-melting plate heat exchanger 7, which is responsible for sending the treated cold water back to the ice storage tank 11 to form a closed-loop circulation system.

[0029] Specifically, during operation, the main function of the ice-melting pump 6 is to draw cold water from the ice storage tank 11 through the ice-melting main pipe 3 to meet the cooling requirements during the ice-melting and ice-making processes. During the ice-melting stage, the air pump 2 is activated to prevent air from entering the water pump and causing cavitation. During ice-making, the cold water drawn by the ice-melting pump 6 is smoothly transported to the dynamic ice-making unit 8 via the ice-making water intake main pipe 32. The latter is responsible for producing ice slurry. The ice slurry generated by the dynamic ice-making unit 8 is transported to the ice storage tank 11 through the ice slurry delivery main pipe 5, and then evenly sprayed into the interior of the ice storage tank 11 using the ice slurry delivery branch pipe 51 and ice slurry delivery nozzles. During the ice-melting process, the cold water drawn from the ice storage tank 11 by the ice-melting pump 6 is transported through the ice water supply main pipe 31. The ice water undergoes heat exchange at the ice melting plate heat exchanger 7, which then returns the heat-treated ice water to the ice storage tank 11 via the ice water return main pipe 4. To effectively maintain the water temperature, the air pump 2 is activated during ice melting, sending air into the ice water area of ​​the ice storage tank 11 through the air supply pipe 21, thereby agitating the water and achieving uniform temperature mixing to ensure that the outlet water temperature can be maintained at 0℃. The air intake pipe 22 is arranged at the upper part of the ice storage tank 11. Considering the low air density, it can promptly extract the air from the tank to maintain the good operating condition of the system. In addition, a semi-permeable membrane 1 is set in a suitable position in the ice storage tank 11 to achieve effective separation of ice crystals and water. The 0℃ ice slurry pipe is located in the upper region of the semi-permeable membrane 1, while the 0℃ ice water pipe is located in the lower region of the semi-permeable membrane 1. The semi-permeable membrane 1 is designed to completely separate ice slurry and water, thus avoiding unnecessary problems caused by mixing. At the same time, a stirring rod 24 is provided above the semi-permeable membrane 1. This stirring rod is driven by the drive shaft 23 when the air pump 2 is started, thereby making the stirring rod 24 run, effectively preventing ice slurry from clumping and maintaining the fluidity of the system. In order to ensure the normal operation of the equipment and temperature control, the monitoring device 9 is connected to the ice-melting pump 6 through the signal line 61, and monitors the operation of the air pump 2 in real time through the monitoring line 1 25. The monitoring device 9 is also equipped with a temperature sensor 10, and monitors the water temperature in the ice-melting main pipe 3 through the monitoring line 2 101. Through the above comprehensive measures, the optimized effect of preventing ice blockage and maintaining the outlet water temperature is achieved.

[0030] Working Principle: During operation, the ice-melting pump 6 draws cold water from the ice storage tank 11 through the ice-melting main pipe 3. During ice melting, the air pump 2 is activated to prevent air from entering the water pump and causing cavitation. During ice making, the cold water drawn by the ice-melting pump 6 is transported to the dynamic ice-making unit 8 via the ice-making water intake main pipe 32. The dynamic ice-making unit 8 produces ice slurry, which is then transported to the ice storage tank 11 via the ice slurry delivery main pipe 5. The ice slurry is then sprayed into the ice storage tank 11 through the ice slurry delivery branch pipe 51 and the ice slurry delivery nozzle 52. During ice melting, the ice-melting pump 6 draws cold water from the ice storage tank 11 and delivers it to the ice-melting plate heat exchanger 7 via the ice water supply main pipe 31 for heat exchange. The ice-melting plate heat exchanger 7 then returns the heated ice water to the ice storage tank 11 via the ice water return main pipe 4. During ice melting, the air pump 2 is activated, sending air into the ice water area of ​​the ice storage tank 11 through the air supply pipe 21 to agitate the water and mix it. The water temperature is adjusted to maintain the outlet water temperature at 0℃. The air intake pipe 22 is arranged at the upper part of the ice storage tank 11. Considering the low air density, it can extract the air in the ice storage tank 11 in time. A semi-permeable membrane 1 is set in a suitable position in the ice storage tank 11, so that the 0℃ ice slurry pipe is located in the upper area of ​​the semi-permeable membrane 1 and the 0℃ ice water pipe is located in the lower area of ​​the semi-permeable membrane 1. The ice crystals and water are completely separated through the semi-permeable membrane 1. A stirring rod 24 is set above the semi-permeable membrane 1. When the air pump 2 is started, it drives the drive shaft 23, and the drive rod drives the stirring rod 24 to run, so as to avoid the ice slurry from clumping. The monitoring device 9 is connected to the ice melting pump 6 through the signal line 61. The monitoring device 9 monitors the operation of the air pump 2 through the monitoring line 1 25. The monitoring device 9 monitors the water temperature in the ice melting dry pipe 3 through the temperature sensor 10 and the monitoring line 2 101, so as to achieve the effect of preventing ice blockage and maintaining the outlet water temperature.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dynamic ice system that prevents ice blockage and maintains outlet water temperature, comprising an ice storage tank (11), characterized in that: The ice storage tank (11) is fixedly connected from top to bottom to an ice slurry delivery branch pipe (51), a stirring rod (24), and a semi-permeable membrane (1). Multiple ice slurry delivery nozzles (52) are fixedly connected to the top of the ice slurry delivery branch pipe (51). An air supply pipe (21) is fixedly connected to the inside of one side of the ice storage tank (11). An air pump (2) is fixedly connected to one end of the air supply pipe (21). The air pump (2) is located on the outer wall of the ice storage tank (11). An air intake pipe (22) and a drive shaft (2) are fixedly connected to the outer wall of the air pump (2). 3) The air pump (2) is electrically connected to a monitoring line (25) on one side, and a monitoring device (9) is electrically connected to one end of the monitoring line (25). The ice storage tank (11) is fixedly connected to the other side of the ice-melting dry pipe (3). One end of the ice-melting dry pipe (3) extends to the bottom of the inner wall of the ice storage tank (11). The other end of the ice-melting dry pipe (3) is fixedly connected to a temperature sensor (10). An exhaust valve (33) is fixedly connected to the outer wall of the ice-melting dry pipe (3). An output component is provided on one side of the temperature sensor (10).

2. The dynamic ice system for preventing ice blockage and maintaining outlet water temperature according to claim 1, characterized in that: The output component includes a second monitoring line (101), one end of which is electrically connected to the inside of the temperature sensor (10), the temperature sensor (10) being located on the outer wall of the ice storage tank (11), and the other end of which is electrically connected to the inside of the monitoring device (9).

3. The dynamic ice system for preventing ice blockage and maintaining outlet water temperature according to claim 2, characterized in that: The monitoring device (9) is electrically connected to a signal line (61) on one side, and an ice-melting pump (6) is electrically connected to one end of the signal line (61). The ice-melting pump (6) draws cold water from the ice storage tank (11) through the ice-melting main pipe (3).

4. A dynamic ice system for preventing ice blockage and maintaining outlet water temperature according to claim 3, characterized in that: The output end of the ice-melting pump (6) is fixedly connected to the ice water supply main pipe (31). When melting ice, the ice-melting pump (6) will draw cold water from the ice storage tank (11).

5. A dynamic ice system for preventing ice blockage and maintaining outlet water temperature according to claim 4, characterized in that: The outer wall of the ice water supply main pipe (31) is fixedly connected to the ice-making water intake main pipe (32), and one end of the ice-making water intake main pipe (32) is fixedly connected to the dynamic ice-making unit (8).

6. A dynamic ice system for preventing ice blockage and maintaining outlet water temperature according to claim 5, characterized in that: The outer wall of the dynamic ice-making unit (8) is fixedly connected to an ice slurry conveying main pipe (5), and the ice slurry produced by the dynamic ice-making unit (8) is conveyed to the ice storage tank (11) through the ice slurry conveying main pipe (5).

7. A dynamic ice system for preventing ice blockage and maintaining outlet water temperature according to claim 6, characterized in that: One end of the ice water supply main pipe (31) is fixedly connected to an ice melting plate heat exchanger (7), and the outer wall of the ice melting plate heat exchanger (7) is fixedly connected to an ice water return main pipe (4).

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