Is there anyone who is knowledgeable about refrigeration units, such as chilled brine units and 5°C water units?
Thread Content
Is there anyone who is proficient in refrigeration units, such as chilled brine units and 5°C water units? How should refrigeration units be maintained on a regular basis? What needs to be done, how often, and should it be done in our own factory or by having a manufacturer come to do it? When charging a refrigeration unit with Freon, should it be done from the low-pressure side or the high-pressure side? Should voltage on both the high-voltage and low-voltage sides be applied at the same time? Is it necessary to shut down the system and release pressure when adding fluorine? Is it still possible to add fluorine while running online? What is the pressure inside the refrigerant cylinder, and does it become impossible to add more refrigerant after a certain point? What should I do? Are special fluorination tools required for fluorination? Are fluorination tools universal? How can one tell if there is a fluoride deficiency in the system, and how much should be added to reach the appropriate level?
The maintenance of refrigeration units includes the following main aspects: 1. Cleaning the filter: This task should be carried out every 3 months. If the machine is quite dirty in its environment, it may need to be cleaned more frequently. 2. Inspect the cooling tower: Inspect it at least once a year. It is necessary to check the water flow rate in the cooling tower, as well as whether the quality of the water meets the manufacturer’s specifications. 3. Cleaning the heat exchanger: The frequency of cleaning the heat exchanger depends on the cleanliness of the environment, but it is generally recommended to do so once a year. 4. Check the refrigerant pressure: This should be done every quarter. If the pressure is too low, it may be necessary to add refrigerant. 5. Inspect the motor and drive belt: Perform an inspection at least once every six months to ensure the tightness of the drive belt and the proper functioning of the motor. In most cases, if your team has the right technicians, maintenance can be carried out on-site. However, for some complex maintenance tasks, technical support from the manufacturer may be required. Regarding the issue of fluorine addition, it is usually done on the low-pressure side of the refrigeration unit. Since the pressure of the refrigerant on the low-pressure side is low, it is easier to introduce the refrigerant into the system. If necessary, filling can be done on both the high-pressure and low-pressure sides simultaneously. When fluorine is added, it is usually not necessary to shut down the system to release pressure. The pressure inside most refrigerant cylinders is higher than the operating pressure of the refrigeration system, so charging with refrigerant can also be carried out while the system is running. The pressure inside the refrigerant cylinder is usually between 1000–2000 pounds per square inch (psi). If it is not possible to introduce the refrigerant into the system while charging it, it may be because the pressure inside the cylinder is lower than that of the system; in such cases, charging must be stopped and the cylinder as well as the refrigeration system need to be checked. Fluorination usually requires specialized fluorination tools, which are not necessarily universal; they may need to be selected based on the type of refrigerant and the design of the refrigeration system. By monitoring the operational performance of the system, it is possible to determine whether the system is deficient in fluorine. Generally, if a decline in the system’s cooling performance or a drop in the refrigerant pressure is observed, it may be a sign of fluorine deficiency. By using the refrigerant filling chart and the system’s operating parameters, it is possible to determine whether there is sufficient refrigerant. However, the fluorination process must be carried out by professionals to prevent equipment damage caused by excessive fluorination. .
The best way to deal with your series of problems is to first contact the equipment manufacturer, who will send someone to the site for maintenance. The maintenance tasks include cleaning the condenser and the cooling water side of the evaporator, as well as replacing the desiccant and filters. Inspections of the compressor and other items. Once this series of procedures is completed, all your problems will be solved. However, most of these devices require repair and maintenance by the manufacturer; it’s also possible to do it oneself if there are many such devices. Otherwise, it is best to leave it to the equipment manufacturer to handle. For reference.