A transparent ice cube preparation device based on a degassing membrane module

Abstract

This application provides a transparent ice cube preparation device based on a degassing membrane module, relating to the field of ice-making equipment technology. The device includes a degassing membrane module, a sealed circulation module, an intelligent control module, and an ice-making module. The sealed circulation module comprises a sealed water inlet tank, a circulating water pump, and a vacuum pump. The circulating water pump is connected to the sealed water inlet tank via a pumping pipe. The output end of the circulating water pump is connected to the degassing membrane module via a first conveying pipe, and the output end of the degassing membrane module is connected to the sealed water inlet tank via a second conveying pipe. This invention combines the degassing membrane module, the sealed circulation module, and the intelligent control module to form a sealed circulation degassing system. By repeatedly degassing the tap water in the sealed water inlet tank, the air content in the water is effectively reduced, thereby improving the transparency of the ice cubes. This effectively solves the problem of numerous white defects commonly found in ice cubes made by traditional ice makers.

Description

Technical Field

[0001] This utility model relates to the field of ice-making equipment technology, specifically a transparent ice block preparation device based on a degassing membrane component. Background Technology

[0002] An ice maker is a refrigeration machine that uses a refrigeration system to cool water through an evaporator to produce ice. The system uses water as a carrier and, when powered on, produces ice through a specific device. In the ice-making process, water automatically enters a storage tank through an inlet valve. Then, a flow control valve pumps the water to a distributor head, where it is evenly sprayed onto the surface of the ice maker. As the water flows over the walls of the ice maker, it is cooled to its freezing point. Water that is not evaporated and frozen flows back into the storage tank through a perforated channel, restarting the cycle. When the ice reaches the desired thickness, it enters a de-icing state. High-pressure hot gas discharged from the compressor is diverted through a reversing valve to the evaporator, replacing the low-temperature liquid refrigerant. This forms a water film between the ice and the evaporator, causing the ice to detach from the evaporator and fall freely into the ice storage tank below under gravity.

[0003] Ice produced by existing ice makers commonly suffers from white defects, primarily due to insufficient removal of dissolved oxygen and other gases from the water. This results in residual air bubbles during ice crystal formation, leading to the white defects. Traditional degassing methods are inefficient and difficult to control in terms of sealing, thus affecting the ice-making effect.

[0004] To address the aforementioned issues, we propose a transparent ice preparation device based on a degassing membrane module. Utility Model Content

[0005] To address the problems in the background art, this utility model provides a transparent ice cube preparation device based on a degassing membrane component.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A transparent ice-making device based on a degassing membrane module includes a degassing membrane module, a sealed circulation module, an intelligent control module, and an ice-making module. The sealed circulation module includes a sealed water inlet tank, a circulating water pump, and a vacuum pump. The circulating water pump is connected to the sealed water inlet tank via a pumping pipe. The output end of the circulating water pump is connected to the degassing membrane module via a first conveying pipe, and the output end of the degassing membrane module is connected to the sealed water inlet tank via a second conveying pipe. Under the action of the sealed circulation module, the degassing membrane module circulates and degasses the tap water in the sealed water inlet tank. The vacuum pump is connected to the degassing membrane module via a vacuum pumping pipe. The intelligent control module is used to adjust the degassing time and the number of cycles of the tap water in the sealed water inlet tank. The ice-making module is used to make ice from the degassed water in the sealed water inlet tank.

[0008] Preferably, the intelligent control module includes a thermometer, an integrated flow meter, and a dissolved oxygen sensor. The thermometer and the integrated flow meter are installed on the first delivery pipe, and the dissolved oxygen sensor is installed on the second delivery pipe.

[0009] Preferably, the ice-making module includes a gradient cooling mold and a foam box wrapped around the outside of the gradient cooling mold.

[0010] Preferably, a diaphragm valve is provided at the inlet end of the first conveying pipeline, and the diaphragm valve is used to control the opening and closing of the first conveying pipeline.

[0011] Preferably, the sealed water inlet tank is connected to the ice-making module via a water outlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In this solution, a sealed circulation degassing system is formed by combining the degassing membrane module, the sealed circulation module, and the intelligent control module. Then, by degassing the tap water in the sealed water tank multiple times, the gas content in the water is effectively reduced, thereby improving the transparency of the ice cubes. This effectively solves the problem of a large number of white defects in ice cubes that are common in traditional ice makers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the system module structure of this utility model.

[0015] In the diagram: 1. Sealed inlet tank; 2. Pumping pipe; 3. Circulating water pump; 4. Diaphragm valve; 5. Thermometer; 6. Integrated flow meter; 7. First delivery pipe; 8. Degassing membrane module; 9. Second delivery pipe; 10. Dissolved oxygen sensor; 11. Outlet pipe; 12. Gradient cooling mold; 13. Foam box; 14. Vacuum pump; 15. Vacuum extraction pipe. Detailed Implementation

[0016] The technical solution in this application embodiment is to solve the problems in the background technology mentioned above. The overall idea is as follows: by combining the degassing membrane module 8, the sealed circulation module and the intelligent control module to work together, a sealed circulation degassing system is formed. Then, by degassing the tap water in the sealed water tank 1 multiple times, the gas content in the water is effectively reduced. Finally, ice is made through the ice-making module, thereby effectively improving the transparency of the ice cubes and solving the problem that traditional ice makers generally have a large number of white defects in the ice cubes during ice making.

[0017] Example: Refer to Figure 1As shown, this embodiment of a transparent ice-making device based on a degassing membrane module includes a degassing membrane module 8, a sealed circulation module, an intelligent control module, and an ice-making module. The sealed circulation module includes a sealed water inlet tank 1, a circulating water pump 3, and a vacuum pump 14. The circulating water pump 3 is connected to the sealed water inlet tank 1 via a water extraction pipe 2. The output end of the circulating water pump 3 is connected to the degassing membrane module 8 via a first delivery pipe 7. The output end of the degassing membrane module 8 is connected to the sealed water inlet tank 1 via a second delivery pipe 9. Under the action of the sealed circulation module, the degassing membrane module 8 circulates and degasses the tap water in the sealed water inlet tank 1. The vacuum pump 14 is connected to the degassing membrane module 8 via a vacuum extraction pipe 15.

[0018] Among them, the sealed water inlet tank 1, the circulating water pump 3, the degassing membrane module 8 and the vacuum pump 14 form a sealed circulating degassing system under the action of the first conveying pipe 7, the second conveying pipe 9 and the vacuum pumping pipe 15, thereby ensuring that no external gas seeps in during the degassing process, thus effectively enhancing the degassing effect.

[0019] The intelligent control module includes a thermometer 5, an integrated flow meter 6, and a dissolved oxygen sensor 10. The thermometer 5 and the integrated flow meter 6 are installed on the first conveying pipe 7, and a diaphragm valve 4 is provided at the inlet end of the first conveying pipe 7. The diaphragm valve 4 is used to control the opening and closing of the first conveying pipe 7. The dissolved oxygen sensor 10 is installed on the second conveying pipe 9, and the dissolved oxygen sensor 10 can detect the water after degassing.

[0020] The intelligent control module is mainly used to adjust the degassing time and the number of cycles of tap water in the sealed water inlet tank 1. The degassing time is set to 10-60 minutes, the number of cycles is 3-30 times, and the flow rate is controlled at 5L / min.

[0021] The ice-making module is used to make ice from the deaerated water in the sealed water tank 1. The ice-making time is 40-60 minutes.

[0022] In some examples, the ice-making module includes a gradient cooling mold 12 and a foam box 13 wrapped around the outside of the gradient cooling mold 12. The foam box 13 serves to insulate the ice and reduce thermal disturbance during ice making.

[0023] In some examples, the sealed water inlet tank 1 is connected to the ice-making module via the water outlet pipe 11, so that water in the sealed water inlet tank 1 is delivered to the ice-making module for ice making.

[0024] In some examples, the degassing membrane module 8 uses a hollow fiber membrane or flat sheet membrane structure to achieve gas separation in water through pressure difference, resulting in a dissolved oxygen degassing efficiency of ≥90%.

[0025] In some examples, this invention uses the gradient cooling mold 12 as the experimental object, and the specific data obtained are as follows:

[0026] Degassing parameters: temperature 30℃, degassing time 30min, number of cycles 9, dissolved oxygen in effluent 0.33mg / L.

[0027] Sealing optimization: The sealed water inlet tank 1 adopts a stainless steel welded sealing box with a vacuum degree ≤-0.08MPa.

[0028] Experimental results: The transparency of the ice increased by 40%, and the area of ​​white defects decreased to less than 5%.

[0029] The working principle of this utility model is as follows:

[0030] The ice-making method involves first using ultrapure water or tap water filtered through activated carbon, with an initial dissolved oxygen concentration ≤7.5mg / L. Then, the tap water is circulated and degassed through a degassing membrane module 8. During the degassing process, the tap water flow rate is controlled at 5L / min, the degassing time is 10-60min, and the number of cycles is 3-30, until the dissolved oxygen concentration after degassing is ≤1.5mg / L. At this point, the degassed water is injected into the ice-making module for ice making, with the ice-making time controlled at 40-60min. Furthermore, by wrapping the outer layer of the gradient cooling mold 12 with a heat-insulating foam box 13 to reduce heat conduction, the ice-making effect is effectively enhanced. Through the above structure and method, this invention can increase the transparency of ice by 40% and reduce the area of ​​white defects to below 5%, thereby effectively solving the problem of white defects commonly found in ice produced by traditional ice makers.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A transparent ice cube production device based on a degassing membrane assembly, characterized by, It includes a degassing membrane module (8), a sealing circulation module, an intelligent control module, and an ice-making module; The sealed circulation module includes a sealed water inlet tank (1), a circulating water pump (3) and a vacuum pump (14). The circulating water pump (3) is connected to the sealed water inlet tank (1) through a water pumping pipe (2). The output end of the circulating water pump (3) is connected to the degassing membrane module (8) through a first conveying pipe (7). The output end of the degassing membrane module (8) is connected to the sealed water inlet tank (1) through a second conveying pipe (9). Under the action of the sealed circulation module, the degassing membrane module (8) circulates and degasses the tap water in the sealed water inlet tank (1). The vacuum pump (14) is connected to the degassing membrane module (8) through a vacuum pipe (15); The intelligent control module is used to adjust the degassing time and circulation number of tap water in the sealed water inlet tank (1); The ice-making module is used to make ice from the degassed water in the sealed water tank (1).

2. A clear ice production apparatus based on a degassing membrane module according to claim 1, characterized in that, The intelligent control module includes a thermometer (5), an integrated flow meter (6), and a dissolved oxygen sensor (10). The thermometer (5) and the integrated flow meter (6) are installed on the first delivery pipe (7), and the dissolved oxygen sensor (10) is installed on the second delivery pipe (9).

3. A clear ice production apparatus based on a degassing membrane module according to claim 2, characterized in that, The ice-making module includes a gradient cooling mold (12) and a foam box (13) wrapped around the outside of the gradient cooling mold (12).

4. A clear ice production apparatus based on a degassing membrane module according to claim 3, characterized in that, A diaphragm valve (4) is provided at the inlet end of the first conveying pipe (7), and the diaphragm valve (4) is used to control the opening and closing of the first conveying pipe (7).

5. A transparent ice cube preparation device based on a degassing membrane module according to claim 4, characterized in that, The sealed water inlet tank (1) is connected to the ice-making module through the water outlet pipe (11).

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