Water Chillers have various applications in the production of the plastic industry. Some of the key applications include:

Cooling injection molding machines: In the injection molding process, high-temperature plastic materials need to be cooled and solidified to obtain the desired shape and properties. Industrial chillers can control the temperature of the injection molding machine by circulating cooling water, ensuring rapid cooling of the plastic and improving production efficiency and product quality. How to equip an injection molding machine with a chiller, please contact our sales to get a solution.oumal@oumal.com

Cooling extrusion machines: In plastic extrusion processes, high-temperature plastic pellets are extruded through an extrusion head to form shapes. During extrusion, the plastic needs to be cooled to maintain product appearance and dimensional stability. Industrial chillers provide cooling water to lower the temperature of the plastic, meeting the requirements of the extrusion process.

Cooling molds: In plastic injection molding, molds need to be cooled to facilitate demolding and rapid solidification of the plastic. Chillers can circulate cooling water into the mold to reduce mold temperature, ensuring quick solidification of the plastic, thus improving production efficiency and product quality.

Cooling plastic processing equipment: During plastic processing, equipment such as extruders, blow molding machines, and vacuum forming machines generate a significant amount of heat. Industrial chillers can use cooling water to lower the temperature, preventing equipment overheating, and improving equipment stability and lifespan.

Controlling plastic forming temperature: Different plastic materials require specific temperature ranges for molding to ensure product quality. Industrial chillers can control the molding temperature by providing cooling circulation, catering to the requirements of different plastic materials.

In summary, the applications of chillers in plastic industry production primarily revolve around temperature control and regulation during the plastic processing stage, aiming to enhance production efficiency, product quality, and equipment stability. The Air cooled chiller is widely used in the plastic industry. Also if the cooling water flow is big, we can use an air cooled screw chiller or water cooled screw chiller. When many machines need to be cool, but we use one central chiller to supply cooling water, the screw chiller is a good choice. We will help to make the best solution for your cooling water system. Contact us to chose your right chiller. WhatsApp: +86 15112554736.

Industrial Chillers are widely used, providing cooling water systems for industrial production and helping companies improve product output and quality. Therefore, we need to understand how to use chillers simply and correctly to avoid problems during use and delay production. Let us briefly understand the use of chillers from the following aspects.

One: the protection of the chiller:

1. Check whether the voltage is normal, lack of phase,

2. Check and record the running current.

3. Measure and record whether the high and low pressure and temperature control temperature are normal.

4. Under normal conditions, the high pressure is 1.5MPa / the low pressure is 0.45MPa4 Check whether the interlocking control circuit device is loose and aging.

5. Check whether the oil level and oil temperature are normal.

6. Check the compressor for abnormal sound and abnormal vibration.

7. Refrigerant system test.

8. Overall commissioning and testing.

9. Regularly check whether the quality of the chilled water and cooling water is normal. When the water quality of the water source becomes dirty or degenerated, please replace the water source in time.

Two: The annual maintenance of the chiller is as follows:

1. Clean the condenser (every six months of cumulative operation)

2. Cleaning the cooling tower (the water-cooled chiller should be cleaned once every three months after accumulative operation)

3. Check the refrigeration oil and lubricating oil system, and replace and supplement the industrial chiller if necessary.

4. Check the circuit system of the water chiller system.

5. Compressor motor coil insulation test for industrial chillers.

6. Check whether the filter drier is normal or not, and replace it if necessary.

Three: the precise use of chillers knowledge:

7. Check the amount of refrigerant and replenish refrigerant in time.

8. Check and correct the high and low pressure switches.

9. Check and calibrate the thermostat.

10. Test run and general calibration, test whether the superheat is normal and whether there is abnormal sound of each component.

Generally, water cooling (that is, natural water and water tower cooling methods) cannot achieve high precision and high efficiency.

The purpose of temperature control, because natural water and cooling tower heat dissipation are inevitably affected by natural air temperature, the water temperature in winter is low in summer, and the water temperature is high in summer. If the air temperature is 30°C, it is almost impossible for the water temperature to reach 10°C, so it is extremely unstable to control in this way. The water chiller is completely different from the general water cooling equipment, because the chiller has a completely independent refrigeration system, which will never be affected by the temperature and the environment. The purpose of high-efficiency temperature control. The chiller is equipped with an independent water circulation system, and the water in the chiller is recycled, which can save a lot of water. Therefore, industrial production is inseparable from industrial chillers. Oumal specializes in the production of industrial chillers to help companies provide industrial chilled water system solutions. Contact us if you are looking for a solution for your industrial chilled water system.

Water cooled screw chiller is a water to water chiller which compressor use semi-hermetic screw type. It’s high efficient water chiller system. The cooling water system including a water cooled screw chiller, a cooling tower, a water tank, and 3 water pumps. Water cooled screw chiller is widely used in the industrial cooling system. High pressure failure of the water cooled screw chiller is the common failure when it working. While how to deal with the high pressure failure of the water cooled screw chillers. Blow let’s talk with the Possible causes and solutions of the high pressure.

1. The temperature of the chiller is too high and the condensing effect is not good. The rated working temperature of the cooling water required by the water-cooled screw chiller is 30℃-35℃. The high water temperature and poor heat dissipation will inevitably lead to excessive condenser pressure. Occurs in the high temperature season, the reason for the high water temperature may be: cooling tower failure, such as the fan is not turned on or even reversed, the water distributor does not rotate, it turns into the high temperature of the cooling water, and rises rapidly, the external temperature is high, the water path is short, and the recyclable water is less If the cooling water temperature has been maintained at a high level, it can be solved by adding a storage tank.

2. The cooling water flow is not enough to reach the rated water flow. The main performance is that the pressure difference between the inlet and the outlet of the unit is reduced (compared to the pressure difference at the beginning of the system operation), and the temperature increases. The reason for the insufficient water flow is the system Lack of water or air. The solution is to install an exhaust valve at the height of the exhaust pipe. The pipe filter is blocked or selected too fine, and the permeability is restricted. The appropriate filter should be selected and the filter screen should be cleaned regularly. The water pump is very small. The system does not match.

3. Scaling or clogging of the condenser of the screw chiller. Tap water is generally used for condensate, which is prone to scaling when the temperature is higher than 30°C. Moreover, because the cooling tower is open and directly exposed to the air, dust and foreign objects can easily enter the cooling water system, causing dirt to block the condenser, small heat exchange area, low efficiency, and affecting water flow. Its performance is that the pressure difference and temperature between the inlet and outlet of the unit become larger, making the condenser temperature very high, and the copper pipe at the condenser outlet is hot. The equipment should be backwashed regularly, and chemical cleaning and descaling should be carried out when necessary.

If you have a water cooled chiller system, you should now how to deal with some failures, Or you can contact us to help solving the problems. If you are looking for a water cooled screw chiller system, please contact us, We will provide you the suitable solution with good price. OUMALCHILLER is specializing in industrial cooling systems for many years. High quality screw chiller will save your time and money.