There are many parts of the screw chiller, among which there are several major components, namely the compressor, condenser, evaporator and microcomputer control system of the screw chiller. The operation panel and computer control system of the screw chiller are very important. Therefore, the four parts of compressor, condenser, evaporator and microcomputer control system are the core parts of screw chiller. Let us discuss these four components in detail.

1. Compressor

As the name suggests, the screw chiller uses a semi-hermetic screw compressor as the compressor of the chiller. There are several major brands of screw compressors we use, such as Hanbell compressors from Taiwan, Bitzer compressors from Germany, or Fusheng compressors from Taiwan. These compressors have reliable quality, low failure rate and high energy efficiency ratio. In contrast to screw chillers, there are scroll chillers and piston chillers. The main brands are Copeland, Danfoss, Bitzer, etc. We won't talk about them here.

2. Condenser

There are two types of condensers for screw chillers. The condenser of the air-cooled screw chiller is a fin type with an additional fan for heat dissipation, while the condenser of the water-cooled screw chiller is a shell and tube type. Therefore, the water-cooled screw chiller The chiller requires an external cooling tower to dissipate heat. Of course, whether it is a water-cooled screw chiller or an air-cooled screw chiller, the condenser must be sufficient to ensure the cooling effect of the chiller and reduce high-voltage failures.

3. Evaporator

Evaporator mainly depends on whether its energy loss is more or less, the less cooling loss is better, and the cooling effect is better. It also depends on whether the structure is compact and the performance is stable. We use shell and tube evaporators for the evaporators of screw chillers.

4. PLC control system

The configured screw chiller, its automatic control system is very high-end, menu-type buttons, and remote monitoring and control, which is very convenient. Such screw chillers can also make you more worry-free to use, even if Operators who don't know anything can use it normally with a little training, which is very user-friendly. Omar screw chiller adopts Siemens PLC control system, or PUNP LCD Touch Screen Control Panel. Omron is optional for client.

To learn more about OUMAL Screw Chiller, please contact us to get the detail information.

We all know that under normal circumstances, small industrial chillers have been equipped with chilled water circulation pumps, such as Packaged air-cooled chillers, box-type water-cooled chillers, and large capacity chillers such as screw chillers and open-type water chillers. The chiller does not contain a chilled water circulating pump. At this time, when installing the cooling water system, an external chilled water circulation pump must be installed, so that the cooling water returns to the chiller for cooling after absorbing the heat of the cooling equipment, so that the cooling water supply pipe forms a circulation system.

It should be noted that no matter whether the chilled water pump is inside the built-in chiller case or outside the chiller, it is recommended that the location of the chilled water pump should be lower than the water level of the water tank. In this way, the circulating water pump can absorb cooling water well. However, in some cases, due to the needs or limitations of the installation environment, the chilled water pump may be higher than the water level of the water tank, so that the cooling water system cannot absorb water during operation, resulting in the chiller. In the case of insufficient chilled water flow, it cannot be started and a fault is reported. So what should we do when the chiller fault code shows insufficient chilled water flow?

1. Use a rubber tube (open its small valve) to send back the water supply pipe reserved on the large pipe on the water tank, and use a wrench to unscrew the vent plug of the cold water circulation pump (if there is water before tightening), until the water is removed. Return to the large tube in the tank and pull the hose out to see if any air bubbles come out. If it does, keep pouring water into the tank until the return water returns to the large pipe in the tank, then unplug the hose and see if any air bubbles come out. If yes, keep pouring water. Close the small valve until there are no air bubbles.

2. At this point, turn on the chiller for 1 minute. If the big pipe has a lot of water back into the pool, that's fine.

3. If the return water is not enough or there is no return water, repeat the above irrigation operation.

When you purchase and install the Oumal industrial chiller, if the chilled water flow is insufficient during the installation test, please contact our sales in time, we will arrange a professional engineer to guide you to solve the problem. Tel: +86 15112554736.