The main products of the ice maker are as follows

Air-cooled condenser

The condensing temperature is determined by the ambient temperature. The higher the ambient temperature, the higher the condensing temperature. Generally, for air-cooled condensers, the condensing temperature is 7 to 12 degrees Celsius higher than the ambient temperature. This value of 7 to 12 degrees Celsius is what we call the heat exchange temperature difference. The higher the condensing temperature, the lower the refrigeration efficiency of the refrigeration unit. Therefore, we need to ensure that this heat exchange temperature difference is not too large. However, if we want to make the heat exchange temperature difference too small, then the heat exchange area of the air-cooled condenser and the circulation air volume will need to be larger, and the cost of the air-cooled condenser will be higher.

The temperature limit should not exceed 55℃ and should be no lower than 20℃. Usually, regions with an ambient temperature exceeding 42℃ are not recommended to use air-cooled condensers. Therefore, whether to choose an air-cooled condenser should first be confirmed by determining the ambient temperature. When designing a wind-cooled ice-making machine, it is necessary to require the customer to provide the highest ambient dry-bulb temperature in the local area throughout the year.

The higher the ambient temperature, the lower the heat dissipation efficiency of the air-cooled condenser and the worse the refrigeration efficiency. The temperature limit of the air-cooled condenser should not exceed 50℃ and should be no lower than 20℃. Usually, regions with an ambient temperature exceeding 38℃ are not recommended to use air-cooled condensers. Therefore, whether to choose an air-cooled condenser should first be confirmed by determining the ambient temperature. Advantages

No need for water resources, and the operating cost is relatively low.

Easy to install and use, without the need for other supporting equipment. Just connect the power supply and it can be put into operation.

It does not pollute the environment.

Suitable for areas with severe water shortages or where water supply is scarce. Disadvantages

The cost is relatively high.

The condensation temperature is high, which reduces the operating efficiency of the refrigeration unit.

It is not suitable for areas with polluted air and dusty climates.

Cooling performance

It is determined by the environmental wet-bulb temperature. The higher the environmental wet-bulb temperature, the higher the condensation temperature. Generally, when using a water-cooled condenser, the condensation temperature is about 5 to 7 degrees Celsius higher than the environmental wet-bulb temperature.

Temperature limit

Not higher than 55℃, not lower than 20℃. Usually, regions with an environmental wet-bulb temperature exceeding 42℃ are not recommended to use water-cooled condensers. Therefore, whether to choose a water-cooled condenser should first be confirmed by the environmental wet-bulb temperature.

When designing a water-cooled ice-making machine, it is necessary to require the customer to provide the highest environmental wet-bulb temperature in the local area throughout the year. At the same time, when the environmental temperature exceeds 50 ℃, water-cooled condensers cannot be used, as the cooling tower is prone to being damaged by high temperatures. The cooling tower must be used under shaded protection. Working principle

The high-temperature and high-pressure refrigerant gas enters the shell side of the condenser through the inlet at the top of the condenser. The cooling water pump draws the cooling water from the water storage tank of the cooling tower and enters the tube side of the condenser through the inlet at the lower right side of the tube. It undergoes heat exchange with the refrigerant outside the copper tubes of the condenser, resulting in a temperature increase. It then exits from the outlet at the upper right side of the condenser and passes through the outlet pipe, entering the inlet pipe of the cooling tower. From there, it is sprayed evenly onto the packing through the water outlet of the sprinkler pipe, where it undergoes heat exchange with the water in the packing through the fan's suction, causing the water temperature to drop. The cooled water is stored in the water storage tank for reuse.

The high-temperature and high-pressure refrigerant gas undergoes heat exchange with the flowing cooling water in the tube side of the condenser. The temperature decreases, and it condenses into a liquid. The exhaust heat of the refrigeration unit first undergoes heat exchange with the water (the heat exchange that occurs inside the condenser), and then with the air (the heat exchange that occurs in the cooling tower).

Evaporative condenser Working principle

The working principle of the evaporative condenser is to send the high-temperature steam that needs to be condensed from the upper inlet of the heat exchange coil into the coil. The high-temperature steam releases heat inside the heat exchange coil and is cooled down, then undergoes a phase change and condenses into liquid. On the outside of the heat exchange coil, water is sprayed in a circulating manner as the cooling medium, evenly spraying water onto the surface of the heat exchange coil to form a uniform and moderate water film. The water film absorbs the heat released by the hot steam and evaporates, and then the water vapor is carried out of the evaporative condenser by the fan to take away the heat from the coil. The evaporative condenser utilizes the latent heat of evaporation of the sprayed water, exchanges heat with the ambient air through the medium of the ambient wet bulb temperature, and has the advantages of low condensation temperature, large heat transfer temperature difference, sufficient heat exchange, low power consumption, and stable performance.

Evaporator of the plate ice machine

Composition of the evaporator

The evaporator of the ice-making machine consists of ice blades, sprinkler plate, main shaft, and water collection plate. Driven by the reducer, it rotates counterclockwise slowly. Water enters the water distribution plate from the inlet of the evaporator of the ice-making machine and is evenly sprinkled on the ice formation surface through the sprinkler pipe, forming a water film. The water film exchanges heat with the refrigerant flow path and rapidly lowers the temperature, forming a thin layer of ice on the ice formation surface. Under the compression of the ice blades, it breaks into pieces of ice and falls into the ice storage. The remaining water that has not formed ice flows back to the water collection plate from the return water port and is recycled through the water circulation pump.

The plate ice machine has been widely applied in industries such as aquaculture, food, supermarkets, dairy products, medicine, chemistry, vegetable preservation and transportation, and marine fishing. With the development of society and the continuous improvement of people's production level, the industries that use ice are becoming more extensive, and the quality requirements for ice are getting higher and higher. There is an increasing urgency for requirements such as "high performance", "low failure rate", and "hygiene" of the ice-making machine. Application

1. Application in aquatic product processing: The crushed ice can lower the temperature of processing medium, cleaning water and aquatic products, prevent bacterial growth and maintain freshness during the processing process.

2. Application in meat product processing: Mix the qualified sanitary crushed ice into the meat mixture to achieve cooling and preservation purposes.

3. Application in food processing: For example, in bread production, when stirring or adding cream, use crushed ice to quickly cool down to prevent fermentation.

4. Application in supermarkets and aquatic product markets: Used for preservation of aquatic products during placement, display and packaging.

5. Application in vegetable processing: In the harvesting and processing of agricultural products and vegetables, use crushed ice to reduce the metabolism and bacterial growth rate of agricultural products. This helps extend the preservation period of agricultural products and vegetables.

6. Application in long-distance transportation: Products that require cooling and preservation during long-distance transportation, such as ocean fishing and vegetable transportation, are increasingly widely using crushed ice for cooling and preservation.

7. It has also been widely applied in industries such as laboratories, medicine, chemical industry, artificial ski resorts, etc.

8. Application in concrete engineering: During large-scale pouring of concrete in hot seasons, it is necessary to effectively and reasonably control the pouring temperature of concrete. The combination of crushed ice and cold water for stirring is the most effective method.

Compared with traditional types of ice blocks (large pieces of ice) and snow ice, crushed ice has obvious advantages, such as being dry, not prone to caking, having good fluidity, good hygiene, a large contact area with preserved products, and being less likely to damage preserved products. It is the preferred product to replace other types of ice in many industries. It also has:

1. High ice-making efficiency and low heat loss:

The automatic crushed ice machine adopts the latest vertical internal spiral blade ice-cutting evaporator. During ice-making, the water is evenly distributed on the inner wall of the ice bucket by the water distribution device inside the ice bucket to quickly form ice. After the ice is formed, the ice is cut by the spiral ice blade and falls down, allowing the evaporator surface to be fully utilized, improving the efficiency of the ice-making machine.

2. Good ice quality, dry and non-agglomerated:

The vertical evaporator of the automatic crushed ice machine produces crushed ice with a thickness of 1-2 millimeters, in the form of irregular flake-shaped ice, with good fluidity.

3. Simple structure, small floor area

The automatic crushed ice machine has various series such as freshwater type, seawater type, self-contained cooling source, user self-provided cooling source, and ice storage, with daily ice production ranging from 500Kg/24h to 60,000Kg/24h. Users can choose the suitable machine type according to the usage occasion and water quality. Compared with traditional ice-making machines, it has a smaller floor area and lower operating costs (no need for dedicated personnel to remove ice and take ice). Characteristics

1. Directly low temperature, ice temperature is low, reaching below -8°.

2. The formed ice is dry and clean, has a beautiful shape, is not prone to forming lumps, has good fluidity, and is hygienic and convenient.

3. In a sheet-like structure, thus the contact area with refrigerated products is large, and the cooling effect is excellent.

4. The sheet ice has no sharp edges and corners, will not damage the surface of the refrigerated products, and is very convenient for storage and transportation.

5. The thickness of the ice can reach 1mm-2mm, and there is no need for a ice crusher, it can be used at any time.

6. The surface area can reach more than 1500 square/ton.