Chilled Water Cooling Systems

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How chilled water cooling systems work？

The chiller compresses the refrigerant into a liquid state through the compressor and sends it to the evaporator for heat exchange with the chilled water to cool the chilled water. The chilled water pump sends the chilled water to the cooling coil at each fan outlet, and the fan blows cold air to achieve cooling. the goal of. The evaporated refrigerant releases heat in the condenser and exchanges heat with the cooling circulating water. The cooling water pump sends the cooling water with heat to the water tower, where the water tower fan sprays and cools it, and communicates with the atmosphere. Heat exchange occurs between them and the heat is dissipated into the atmosphere.

It consists of cooling pump, cooling water pipeline and cooling tower. While the refrigeration host is performing heat exchange and cooling the water temperature, it will certainly release a large amount of heat. This heat is absorbed by the cooling water, causing the cooling water temperature to rise. The cooling pump presses the heated cooling water into the cooling tower, allowing it to exchange heat with the atmosphere in the cooling tower, and then returns the cooled cooling water back to the refrigeration unit. Such a continuous cycle takes away the heat released by the freezing host. The cooling water flowing into the refrigeration host is referred to as “inlet water”, and the cooling water flowing back from the refrigeration host to the cooling tower is referred to as “return water”. Likewise, the temperature of the return water will be higher than the temperature of the incoming water, creating a temperature difference.

Chilled water cooling systems are further divided into closed circulating cooling water systems and open circulating cooling water systems.

When cooling water circulates in a completely closed system consisting of heat exchangers and pipelines, it is called a closed circulation system. In a closed circulation system, the heat absorbed by the cooling water is generally cooled by air. During the water circulation process, there is no other water loss except leakage, and there are no environmental problems caused by sewage discharge. The salt content in the system and The chemicals added remain almost unchanged, so the water quality treatment is relatively simple. However, closed circulating cooling water has serious corrosive corrosion product problems. Closed circulation systems are generally only used in areas with small water volumes or water shortages.

Cold water flows into the heat exchanger to cool the hot fluid. After the water temperature rises, it uses the remaining pressure to flow into the cooling tower for cooling. The cooled water is then pumped into the heat exchanger for recycling. This system is called open circulating cooling water. system. This kind of open circulating cooling water needs to evaporate part of the water and discharge a certain amount of concentrated water during the circulation process. Therefore, a certain amount of fresh water (usually called water replenishment) must be added to maintain the salt content or The content of a certain ion is at a certain value.

The open circulating cooling water system is the most widely used system and also the system with the most complex water quality treatment technology.

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Precision Chillers / Small Chillers

(Custom Designs)

The chiller can be widely used in various industries and laboratories, and supports customized design.

Recirculating Chillers

(Custom Designs)

Our recirculating chiller adopts low-temperature refrigeration technology, the temperature is as low as -120℃, and various accessories are customizable.

Low Temperature Chillers

(Custom Designs)

We specialize in the production of low-temperature chillers with a temperature control range as low as -150°C, which can meet the refrigeration needs of different industries.

Chillers for Automotive Test

(Custom Designs)

Temperature simulation for vehicle quality test: battery life test, fuel injector/motor test bench, airbag test, component test bench, etc.

Chillers for Semiconductor

(Custom Designs)

Suitable for precise temperature control of electronic components. In the manufacture of semiconductor electronic components for harsh environments, the IC packaging assembly and engineering and production testing phases include electronic thermal testing and other environmental testing simulations.

Liquid Cooling For Battery Energy Storage Systems

(Custom Designs)

ZLFQ Series

(Custom Designs)

Coolant Distribution Unit

Liquid cooling equipment is suitable for semiconductor testing, electronic equipment constant temperature testing, cooling server supporting infrastructure, and other fluid temperature control places.

MD Thermal Chucks Series

(Custom Designs)

It is used for testing RF devices and high-density power devices (IGBTs and MOSFETs), and can also be used for rapid cooling of laboratory flat panels (plasma, biological products, batteries), etc.

Screw Chillers (Custom Designs)

Low temperature screw chillers and room temperature screw chillers