Heat Exchanger Unit Manufacturer: Why use a plate heat exchanger?
Release Time:
2020-10-09 15:22
Source:
When it comes to plate heat exchangers, many people may not know what they are, but let me tell you that they are used in central air conditioners. The main reason for using plate heat exchangers is :
1 the refrigerant in the internal - water heat exchanger in the central air conditioner unit. - Heat exchangers generally come in three types: tube-in-tube, shell-and-tube, and plate heat exchangers. Tube-in-tube and shell-and-tube heat exchangers are typically used in large units and have the advantages of low pressure loss, low water quality requirements, and resistance to clogging. Plate heat exchangers are generally used in smaller units and have the advantages of small size and high efficiency. If it is a water system unit, there must be a heat exchanger; if it is not a plate type, it must be another type.
2 Central air conditioning water systems that use small heating boiler technology for heating will have a heat exchanger, usually a plate heat exchanger, connected in series with the air conditioning unit. This is used for heat exchange between the air conditioning system water and the boiler heating water. During winter use, the boiler temperature is set, and when the water in the furnace reaches a certain set temperature, the circulation pump begins heating, circulating water to the heat exchanger, and heating the return water in the main air conditioning system pipeline. If the heat exchanger is removed to save costs, the heating boiler must be connected in parallel to the main pipe. When used, the main system circulation pump and the boiler heating circulation pump will compete for water, causing insufficient boiler heating water flow and rendering the boiler ineffective. If a gate valve is added to the parallel section of the boiler, the valve is closed during heating, and the boiler circulation pump is removed; this is equivalent to connecting the boiler in series to the air conditioning pipeline system. The small circulation pump in the furnace will suppress the flow of the main system circulation pump, resulting in the boiler only providing auxiliary heating and not providing domestic hot water. Due to the principle of boiler structure, as soon as the air conditioner is turned on, domestic hot water will not heat up. Therefore, a plate heat exchanger should also be used in the case of auxiliary heating from the boiler.
This is why plate heat exchangers are necessary. The above shows the functions of heat exchangers. If a heat exchanger malfunctions, many problems can occur. Therefore, proper cleaning and maintenance of the plate heat exchanger is essential to prevent damage.
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