Understanding the Role of Cooling Towers with Water Cooled Chillers
A cooling water tower is a water-cooled chiller in the process of operation that must be equipped with a set of auxiliary equipment. A water-cooled chiller will release a lot of heat in the process of operation, connecting the cooling tower can provide enough cooling water to reduce the working temperature of the chiller. Specifically, the cooling water tower takes the hot water away from the chiller through the flow of circulating water, and then through the fan or other cooling equipment in the cooling water tower, the heat is emitted to the surrounding environment, and the cooling water is cooled down and then delivered to the chiller, and the cycle repeats itself, to maintain the chiller in the appropriate operating temperature range. This ensures the efficient operation of the chiller, extends the service life of the equipment, and ensures the stability and reliability of the refrigeration system.
Which Industrial Chiller is Recommended for Installing a Cooling Water Tower?
Air cooled chillers
Air-cooled chillers usually do not require the installation of a cooling water tower. In contrast to water-cooled chillers, air-cooled chillers use air as the cooling medium and dissipate heat through built-in fans and radiators rather than relying on an external water cooling system. Therefore, air-cooled chillers do not need to be connected to a cooling water tower to provide cooling water for heat dissipation.
Small water cooled chillers
Small water-cooled chillers usually have a built-in water tank for circulating cooling water to dissipate heat. Since the built-in tank can provide enough cooling water for circulation, there is no need to connect a cooling tower to provide external cooling water for heat dissipation.
Large water cooled chillers
Large water-cooled chillers usually need to be connected to a cooling tower because they require a larger amount of cooling water for heat dissipation.
The Ultimate Guide to Selecting Cooling Towers for Large Water-Cooled Chillers
Generally, the following factors need to be considered when selecting a cooling tower for a large water-cooled chiller:
●Cooling tower capacity: The cooling capacity of the cooling tower is determined by the cooling capacity of the chiller and the circulating water flow. Generally, the capacity of the cooling tower should be at least 1.2 times the cooling water flow of the chiller.
●Type of cooling water tower: Generally, cooling water towers are divided into round and square. Generally, round cooling towers have less wind resistance and better heat dissipation efficiency, but the price is high; while square cooling towers have large wind resistance and less heat dissipation efficiency than round cooling towers, but the price is low.
●Noise level: according to the product configuration and price difference, the cooling water tower according to the noise level division, can be divided into standard, low noise type, and ultra-low noise type. Accordingly, the price of the product also rises.
●Cooling water temperature: Generally speaking, the cooling water tower's outlet temperature is 5~10℃ lower than the inlet temperature to meet the operation requirements of most water-cooled chillers. Therefore, ordinary cooling water towers (inlet temperature 37℃, outlet temperature 32℃) and medium-temperature cooling water towers (inlet temperature 40℃, outlet temperature 32℃) can meet your needs.
6 Essential Steps for Installing Water Tower for Water Cooled Chiller
Determining where to install the cooling water tower for a water-cooled chiller is crucial. Considering the large size of the cooling water tower and the fact that heat dissipation is achieved by transferring heat from the water tower to the air through the built-in fan, the cooling water tower needs to be installed in an environment where the site is open, free of obstacles and well ventilated.
1.Installing the base for the water-cooled chiller cooling tower: Generally, cooling towers are heavy. Therefore, Kassel recommends you choose a high-quality concrete, and steel structure as the base material, and the design and construction of the base should be able to meet the weight of the tower and the requirements of the external environmental loads, to ensure that the base can safely carry the weight of the cooling water tower and stable support.
2.Connection of circulating water pipeline: connect the inlet pipeline/outlet pipeline of the water-cooled chiller with the outlet pipeline/inlet pipeline of the cooling water tower respectively; in addition, consider the distance between the cooling water tower and chiller as well as the design of the pipeline to ensure the efficiency of water flow and cooling effect.
●Distance limitation: the distance between the cooling water tower and the chiller should be kept within the appropriate range as far as possible, too far distance may lead to increased water flow resistance, increased energy loss, and decreased cooling effect. Generally speaking, it is recommended that the distance between the cooling water tower and the chiller should not exceed 50 meters.
●Pipe bending limit: pipe bending will increase the resistance of water flow and energy loss, so the use of bends should be minimized in the design of the piping layout, especially bends of more than 90 degrees. Reasonable design should try to keep the straight section of the pipe and use bends to reduce resistance when bends are needed.
3.Installation of water pump: A water pump is installed between the cooling water tower and the chiller for transferring cooling water from the tower to the chiller.
4.Cooling Water Quality Requirements: Kassel recommends that you use clean tap water, purified water, or softened water for the cooling circulating water. Because tap water or purified water has fewer impurities, it will not precipitate or scale in the pipeline, thus reducing the risk of clogging and ensuring smooth water flow; at the same time, clean cooling water can also effectively protect the internal components of the chiller system, reducing the damage or failure of the equipment due to water quality problems.
5 Filling cooling water: After the installation is completed, open the water inlet valve of the cooling water tower and start to inject clean cooling water into the cooling water tower until the tower is full. During the process of water injection, check whether there is any leakage in the water tower and pipeline, and deal with it in time.
6.Testing and debugging: After completing the installation, carry out the testing and debugging of the cooling water system to ensure the normal operation and connection of the water pumps, pipes, and valves. Adjust the running speed of the pump and water flow to meet the operational needs and temperature requirements of the chiller.
To summarize, choosing the appropriate cooling water tower and understanding its proper installation is crucial to the stable operation of a water-cooled chiller. Kassel Machinery is a industrial chiller manufacturer. We use high-quality compressors and accessories and apply secondary subcooling technology, which enables our chillers to provide excellent refrigeration effects, stable performance, and efficient energy consumption performance.
Our product line covers air-cooled chillers, water-cooled chillers, screw chillers, scroll chillers, portable chillers, centralized chillers as well as oil coolers, mold temperature machines, etc. Kassel Industrial Chillers have obtained many international certificates, such as ISO9001, CE, etc. We have a professional technical team, and we provide every customer with two years of free warranty service and free lifetime maintenance. service. If you have any questions about the industrial chiller, please contact us immediately, we will be happy to serve you!
Post time:Sep-25-2020
