Hybrid heat exchangers rely on direct contact between cold and hot fluids for heat transfer. This heat transfer method avoids the thermal resistance of the heat transfer walls and the two sides of the heat transfer. As long as the contact between the fluids is good, there is a large The rate of heat transfer. In the case where the fluids are allowed to mix with each other, a hybrid heat exchanger such as washing and cooling of gas, cooling of circulating water, mixed heating between steam and water, condensation of steam, and the like can be employed.
Its applications span chemical and metallurgical companies, power engineering, air conditioning engineering and many other manufacturing sectors. According to the application, the hybrid heat exchanger can be divided into the following different types (1) cooling tower (or cold water tower). In this equipment, natural ventilation or mechanical ventilation is used to improve the production. The temperature of the water is cooled and cooled to be recycled to improve the economic efficiency of the system. For example, circulating water in thermal power plants or nuclear power plants, cooling water in the production of synthetic ammonia, etc., are recycled after cooling by a water cooling tower. This method has been widely used in practical engineering.
(2) Gas scrubbing towers (or scrubbers) Industrial use of such equipment for scrubbing gases has various purposes, such as absorbing liquid from certain components of the gas mixture, removing dust from the clean gas, and increasing the gas. Wet or dry, etc. But its most widely used use is to cool the gas, while the liquid used for cooling is mostly water. The shower room widely used in air conditioning engineering can be considered as a special form of it. The shower chamber can not only cool the air like a gas scrubber, but it can also heat it.
However, it also has disadvantages such as high water quality requirements, large floor space, and high energy consumption of the pump: therefore, in general buildings, the shower room is not used often or only as a humidifying device. However, textile mills, cigarette factories, etc., which have the main purpose of adjusting humidity, are still in large use! (3) Jet heat exchangers In such equipment, fluids with higher pressure are ejected from the nozzles to form a high The velocity, low-pressure fluid is introduced into the mixing chamber and is in direct contact with the jet for heat transfer, and enters the diffusion tube together, and is sent to the user after the outlet of the diffusion tube reaches the same pressure and temperature. (4) Hybrid condenser This apparatus generally condenses steam by direct contact with water and steam.
Wuxi Winsun Automation Instrument Co., Ltd , https://www.jswxwinsun.com