Plate heat exchangers can be divided into categories according to their function or characteristics. The most common type is the Plate And Frame Heat Exchanger, which uses gaskets between its plates to create a hermetic seal between them. Another type is the Brazed Plate Heat Exchanger, which is a sealed unit where the plates are joined together by a brazing process. There are also welded plate heat exchangers, involving the use of welding, as well as semi-welded and fully-welded models. Pillow Plate Heat Exchanger consists of two thin metal plates with a herringbone structure on them, the plates are welded together to form a series of interconnected pillow chambers.
Plate heat exchangers are typically used for applications including heating, cooling, heat recovery and condensing, and are especially useful for industrial applications as they are compact. efficient, cost-effective, easy to use and require minima maintenance. Additionally, plate heat exchangers can be used totransfer fluids of different temperatures quickly and in a wide range of flow rates.
Plate heat exchangers are highly suitable for industrial and domestic applications such as air conditioning and refrigeration, radiators and condensers. Oil cooling, chemical processes, food and beverage processing.
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It is also a "three kinds of water" for farmers to irrigate during the spring irrigation.
[ China Agricultural Machinery Industry News ] One year is in spring, spring sensation, accumulated temperature, lighting and other factors depend on the climate, only spring irrigation depends on manpower. Another year of spring irrigation, the peasant masses need "three kinds of water": clean water, save water, and timely water.
It is also a "three kinds of water" for farmers to irrigate during the spring irrigation.
Spring irrigation requires clean water. The provision of clean spring irrigation requires not only the supervision of the environmental protection department, but also the strict implementation of the drainage system by the emission enterprises. In April 2015, the State Council officially issued the “Water Pollution Prevention Action Planâ€, which announced the division of responsibilities among various departments. The annual assessment results of each province will serve as an important basis for the comprehensive evaluation and evaluation of leading bodies and leading cadres. The unsuccessful person in charge will be accepted. talk. Under heavy pressure, the author visited in Liaocheng and found that the water quality of spring irrigation was significantly improved, mostly “green water irrigation†and “smelly water irrigationâ€. Especially in places where rivers and canals are well constructed, the improvement of spring irrigation water quality has also promoted the construction of beautiful villages.
Spring irrigation needs to save water. Every spring irrigation, the rural people always have to go home to help the land, but the migrant workers in the field are difficult to go home, the family has no labor, and it is difficult to pour the land. In the work of poverty alleviation and comprehensive agricultural development, Liaocheng focused on the implementation of rural water conservancy projects. Wherever possible, IC cards replaced the traditional meter reading by means of IC card swabs, realizing the automatic collection and measurement of agricultural water use and water resources information. This kind of practice can save time and effort for spring irrigation, avoid the pain of going back and forth between migrant workers, and can be widely promoted.
Spring irrigation requires timely water. In the weak northern plains where rivers and canals are built, spring irrigation uses irrigation equipment. The effective supply of groundwater depends on whether the irrigation equipment is operating effectively and whether the energy of the electric oil is in the field. Taking Liaocheng as an example, spring irrigation requires water conservation. On the one hand, it is necessary to give full play to the benefits of small-scale agricultural water projects, and realize the “small white dragons†of households to meet the demand for quantity; on the other hand, large-scale planting should play the role of water-saving equipment. Lee, to achieve qualitative changes with water-saving irrigation equipment.