跳至主要内容

How to deal with the high pressure failure of water cooled screw chiller | Oumalchiller.com

 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.


water cooled screw chiller application


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.


评论

此博客中的热门博文

Where are water-cooled chillers used? What is a chiller used for?

  Water-cooled chiller   is a cooling water device that can provide constant temperature, constant current and constant pressure. A chiller is a machine that achieves refrigeration through vapor compression or absorption cycles. These liquids can flow through heat exchangers to cool the air or equipment. The industrial chiller can always output ice water with a lower temperature than the ambient temperature. It can be used wherever cooling is required, either direct cooling or indirect heat exchange. The main components of a water-cooled chiller are compressor, condenser, evaporator, water pump, and water tank. Chillers have a wide range of applications. The chiller can be used to cool the injection mold, improve the quality of plastic products, cool the vacuum coating, control the temperature of the vacuum coating machine, cool the food industry, fast cooling processing, chemical industry, effectively control the temperature of chemicals, cooling buildings, concrete fast Cool...

Ways and solutions of noise produced by chillers - www.oumalchiller.com

  It is inevitable that the chiller will produce sound when it is working. For example, when the fan rotates, the fan blades rub against the air, it will produce sound. Normal sound is allowed. However, even the sophisticated refrigeration equipment will appear after a long period of use. Fault. Then, the editor of   Oumal Chiller   will take you to understand the causes and solutions of the noise produced by the chiller. First, find the reason from the parts that are easy to check and observe: 1. Are the anchor screws loose? The chiller is fixed on the ground. After running for a long time, the anchor bolts will be loose, and the chiller will be unstable, which will cause noise. This situation can be solved by replacing the anchor bolts, and vibration reduction can also be installed if conditions permit. The purpose is to make the chiller firmly fixed on the ground. 2. Whether the connecting pipeline is firm There are large and small pipes on the chiller, connecting the ...

How is the Refrigeration Industry Leading the Green Development with R404A

  As global environmental concerns continue to rise, the refrigeration industry is undergoing a significant transformation. Water-cooled low-temperature units exported overseas are now increasingly adopting the eco-friendly refrigerant R404A, leading the way in the industry's green development. Here's a deeper look into this trend. Why Is R404A Becoming the Preferred Refrigerant for  Water-Cooled Low-Temperature Units ? R404A is a blend of refrigerants that stands out due to its environmentally friendly properties. It is free from Ozone Depleting Potential (ODP) and has a relatively low Global Warming Potential (GWP), making it an ideal substitute for traditional refrigerants. This balance between high-performance cooling and environmental friendliness has made R404A especially popular in regions with strict environmental regulations, such as Europe and North America. Water-cooled low-temperature units exported to these areas are now commonly equipped with R404A to meet local ...