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What should I pay attention to when purchasing rubber pads for heat exchange units

Views:2     Author:Site Editor     Publish Time: 2020-12-07      Origin:Site


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The heat exchange unit is suitable for heat exchange in the fields of HVAC heating, petroleum, chemical, thermal power, metallurgy, light and textile, food, medicine, nuclear industry, shipbuilding, marine development and other fields.


It can also be widely used in factories, institutions, schools, residential quarters, villas and other civil buildings, shopping malls, hotels, restaurants, resorts and other commercial buildings for heating, air conditioning, water, domestic hot water, swimming pool winter water, and can also be used Preparation of industrial production process water.


The plate heat exchanger rubber pad of the heat exchange unit is a kind of heat exchanger with high heat exchange efficiency among various heat exchangers at present. It occupies a small space and is easy to install and disassemble. The rubber pad of the plate heat exchanger should be installed on the hard cement foundation ground, and the ground should be provided with a floor drain sewer.


There should be enough space around the heat exchanger to facilitate observation and maintenance. The connecting pipeline should be firmly supported, and the long pipeline should have a gap at the turning point for cold and hot expansion.


Before use, check whether each clamping nut of the heat exchanger is loose, and tighten it if necessary. An exhaust valve should be provided at the highest point of the installation pipeline to exhaust the air in the pipeline when filling with water. A drain valve should be provided at the lowest point of the pipeline, which can be used to drain stagnant water. Thermometers and pressure gauges should be installed on the inlet and outlet pipes of the heat exchanger to observe its working conditions during operation.


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When the medium is water-water heat exchange, on the hot water side, the hot water enters from the interface of the heat exchanger and is discharged from the lower port; on the cold water side, the cold water mainly enters from the lower interface of the plate heat exchanger and from the upper interface discharge. The purpose of this is to reverse the flow direction of the adjacent hot runner media in the heat exchanger, that is, "countercurrent" heat exchange, so that the cold and hot runners of the heat exchanger can always maintain a relatively balanced temperature difference during the heat transfer process. To facilitate heat exchange.


When the medium is steam-water heat exchange, steam should enter from the upper interface of the heat exchanger, and the lower interface should discharge the condensate. The hot side of the heat exchanger should be assembled in a single process. Do not install a steam trap on the condensate outlet to facilitate Let the condensate drain freely.


When the heat exchange unit discharges more steam from the condensed water, the valve at the steam inlet of the heat exchanger can be adjusted to reduce the steam supply. The discharged condensate is clean water and should be returned to the boiler for use. The cold water side should enter from the lower end and discharge from the upper end.


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