Energy saving method for maintenance of central air conditioning chiller

Central air conditioning chiller belongs to large refrigeration equipment, very power consumption, the operator should understand the operating principle and characteristics of the unit and the entire air conditioning system, and strictly according to the operation instructions of the refrigeration unit to ensure the safe operation of the unit. So, how to complete the central air conditioning chiller energy saving?

1, summer morning, outdoor air temperature is low, indoor air temperature is high, fresh air. You can use the new fan and fire smoke exhaust system to pump and supply air for about 15 minutes. This approach has the following advantages:

1, before starting the machine, can reduce the room temperature and reduce the load on the host.

2. Improve indoor air quality.

3, check whether the smoke exhaust system is normal, which is conducive to saving the operation.

Second, monitor the specific situation of each cooling site, and timely open and close the relevant air cabinets, fan coil units and other equipment to reduce the heat load of the system, which can actually reduce the energy consumption of the unit. Power consumption of the terminal device.

Third, according to the change of temperature and the change of cold occasion, open or close the cooler at the appropriate time. Under the premise of meeting the requirements of air conditioning, the cooler should be opened or closed as little as possible, and its operating time should be reduced as much as possible.

Fourth, find out the actual situation of the entire cold situation, and grasp the good start and stop time, especially the moment when the freezing pump pumps the circulating water. The moment is different for each system.

Pay attention to closing all doors and Windows leading to the outside to avoid cold leakage and outdoor heat intrusion. Especially with regard to buildings whose doors face south, we should try to avoid the entry of hot air (because of the wind in summer).

In summer, when the temperature is high at 4 p.m. every day, we should pay close attention to the operation of the unit and adjust the operation of the unit in time to avoid adding the operation of the unit before the indoor temperature rises. The heat load is significantly added, which easily damages the equipment and adds energy consumption. After adding units, note the observations. When the return water temperature of the chilled water drops to a certain degree, the added unit (including the corresponding refrigeration pump, cooling pump, cooling tower fan and water inlet and outlet valve) should be closed immediately. In order to avoid wasting power, the centrifuge should pay more attention to low load surge.

From 7 PM to 9 PM, the heat load of shopping malls, entertainment venues and other places is also very large, mainly because shortly after dawn, the sun radiates to the ground during the day, the addition of heat emitted by the external walls, and the addition of customers and visitors, resulting in a rise in temperature in the cold climate. At this moment, the operation of the equipment should also be adjusted in time.

Seven, pay attention to the quality of chilled water and cooling water, and do a good job of water treatment. Regularly check and supervise the operation of the water treatment company to ensure that there is no scale and dirt in the condenser and evaporator, to avoid affecting the heat exchange effect of the condenser and evaporator, and to add the power consumption of the main engine.

Pay regular attention to central and local climate forecasts, have a clear understanding of daily temperature changes, draw up clear guidelines for air conditioning operations, and pay more attention to climate changes in coastal areas where hurricanes often occur.