The high temperature and high pressure refrigerant gas enters the shell side of the condenser from the inlet above the condenser, and the cooling water pump draws the cooling water from the water storage tank of the cooling tower, and enters the condenser through the water inlet below the right side of the condenser. During the pipe, the Yantai refrigeration and air-conditioning components exchange heat with the refrigerant outside the copper tube of the condenser. The temperature rises and exits from the water outlet above the right side of the condenser. After passing through the water outlet pipe, it enters the inlet pipe of the cooling tower. Then, the water outlet of the sprinkler pipe is evenly sprinkled on the packing, and the heat is exchanged with the water in the packing by the fan suction, so that the water temperature is lowered, and the cooled water is stored in the water storage tank to be reused.
The high-temperature and high-pressure refrigerant gas is heat-exchanged with the cooling water flowing in the tube in the shell side of the condenser, and the temperature is lowered to be condensed into a liquid. The heat rejection of the refrigeration unit is first exchanged with water (heat exchange occurring within the condensation), and the water is then exchanged with the air (heat exchange occurring within the cooling tower). Determined by the ambient wet bulb temperature, the higher the ambient wet bulb temperature, the higher the condensation temperature. Generally, a water-cooled condenser is used, and the condensation temperature is about 5 to 7 ° C higher than the ambient wet bulb temperature.
The working principle of the evaporative condenser is that the high-temperature steam that needs to be condensed is sent into the coil from the upper portion of the heat exchange coil, and the high-temperature steam releases heat in the heat exchange coil, and after being cooled, the phase change condenses into a liquid. The circulating spray water is used as a cooling medium outside the heat exchange coil, so that the water is evenly sprayed onto the outer surface of the heat exchange coil to form a uniform and moderate water film, and the water film absorbs the heat released by the hot steam in the coil and evaporates. Then, the steam is taken out of the evaporative condenser by the fan to take away the heat inside the coil. The evaporative condenser uses the latent heat of evaporation of the spray water. The Yantai cold storage insulation board uses the ambient air as the medium to exchange heat with the ambient wet bulb temperature as the temperature difference. It has low condensation temperature, large heat transfer temperature difference, sufficient heat transfer and low power consumption. , stable performance and other advantages. Determined by the ambient wet bulb temperature, the higher the ambient wet bulb temperature, the higher the condensation temperature. Generally, a water-cooled condenser is used, and the condensation temperature is about 5 to 7 ° C higher than the ambient wet bulb temperature. The condensing temperature limit of a typical refrigeration system is not higher than 55 ° C and not lower than 20 ° C. In general, water-cooled condensers are not recommended in areas where the ambient wet bulb temperature exceeds 42 °C. So whether you can choose a water-cooled condenser, first confirm the ambient wet bulb temperature. When designing a water-cooled ice machine in general, customers must be required to provide the highest ambient wet bulb temperature throughout the year.
Not higher than 55 ° C, not lower than 20 ° C. In general, water-cooled condensers are not recommended in areas where the ambient wet bulb temperature exceeds 42 °C. So whether you can choose a water-cooled condenser, first confirm the ambient wet bulb temperature. When designing a water-cooled ice machine in general, customers must be required to provide the highest ambient wet bulb temperature throughout the year. At the same time, when the ambient temperature exceeds 50 °C, the condenser cannot be cooled by water, and the cooling tower of Yantai central air-conditioning equipment is easily exposed to high temperature. The cooling tower must be used with shading protection.