Product Description
Product Description
Cooling circulating water system
One: Overview: Cooling circulating water system is a broad concept, including temperature system, heat transfer system and other applications, mainly for different processes.
Two: Definition: refers to the water supply system used by the cooling water to exchange hot water and cool down, and then recirculate. Pipeline composition.
Three: Principle: A cooling water system that uses water as the cooling medium and is recycled. It is mainly composed of cooling equipment (including cold sources, chillers, cooling towers, etc.), Water Pumps and pipelines. After the cold water flows through the production equipment that needs to be cooled (usually called heat exchange equipment, such as heat exchangers, condensers, reactors), the temperature rises, if it is discharged immediately, the cold water is only used once (called the direct-flow cooling water system). If the warming-up cold water flows through the cooling equipment, the water temperature drops back, and it can be pumped back to the production equipment for reuse. The amount of cold water is greatly reduced.
The cooling equipment is divided into open type and closed type, so the circulating cooling water system is also divided into two types: open type and closed type. The design and operation of open systems are more complicated.
(1) Open type
There are two types of cooling equipment, cooling pool and Cooling Tower, which mainly rely on the evaporation of water to lower the water temperature. Furthermore, cooling towers often use fans to promote evaporation, and cooling water is often blown away. Therefore, the open circulating cooling water system must be supplied with fresh water. , Its flow is often determined according to the circulating water concentration limit. Usually, the amount of supplemental water exceeds the loss of evaporation and wind, so some circulating water (called sewage) must be discharged to maintain the balance of water. Circulating cooling water system
In an open system, dust and microorganisms enter the circulating water due to the contact of the water flow with the atmosphere; in addition, the escape of carbon dioxide and the leakage of materials in the heat exchange equipment; also change the water quality of the circulating water. For this reason, circulating cooling water often needs treatment, including sediment control, corrosion control and microbial control. The determination of the treatment method is often related to the amount and quality of the make-up water, as well as the performance of the production equipment. When using multiple agents, avoid possible chemical reactions between the agents.
(2) Closed circulating cooling water system
Closed circulating cooling water system is also called closed circulating cooling water system. In this system, the cooling water is not discharged immediately after being used, but is recycled and reused. The open evaporation system is a kind of cooling system with wide applications and many types. It also uses water cooling to remove the heat dissipated by the process medium or heat exchange equipment, and then uses the hot water to evaporate part of the hot water when the hot water is in direct contact with the air, so that most of the hot water is cooled and then recycled. Therefore, such a system is also called an open circulating cooling water system. According to the different contact methods of hot water and air, it can be divided into many types
Several structural forms of the process cooling circulating water system:
1. Cooling tower cooling Water Tower:
A cooling tower is a device that cools water, in which the water exchanges heat and mass with the air flowing through it, causing the water temperature to drop; it is widely used in air-conditioning circulating water systems and industrial circulating water systems. In a certain Water Treatment situation, the cooling effect is one of the important performances of the cooling tower. When selecting the cooling tower, the main consideration is whether there are special requirements for the degree of cooling, cooling water volume, and wet bulb temperature. It is usually installed in a well-ventilated place.
2. Heat exchange unit The heat exchange unit is composed of a heat exchanger, a temperature Control Valve group, a trap valve group (when the heat medium is steam), a circulating pump, an electric control cabinet, a base, pipelines, valves, instruments, etc., and can be added Install expansion tank, Water Treatment Equipment, Water Pump frequency conversion control, temperature control valve, remote communication control, etc. to form a complete heat exchange station. The heat exchange unit has a standardized and modular design, complete configuration, easy installation, high efficiency and energy saving. The heat exchange unit has the advantages of compact structure, reliable operation, simple and intuitive operation, etc., and it is the first choice for high-efficiency and energy-saving products. This product is suitable for sanitary hot water in residences, institutions, factories and mines, hospitals, hotels, schools and other occasions. The integral heat exchange unit can be used for water-water exchange as well as steam-water exchange.
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Product Categories : Circulating Cooling Water Equipment
