A tubular condenser is a common heat exchanger. It can also be called a tubular cooler. It is also a shell-and-tube cooler. It is divided into a tube and a shell. The flow of liquid in the tube is the tube. The flow of the liquid flowing outside the tube is the shell side, and the wall surface of the tube bundle is the heat transfer surface. When the temperature difference between the tube bundle and the shell exceeds 50 ° C, considerable temperature compensation measures are taken to eliminate or reduce the thermal stress. So how does such a tubular condenser work ? Xiao Bian here to introduce you to a simple shell and tube condenser works.
The tubular cooler consists of two oil coolers and three-way valve devices of the same area. One working and one standby, each cooler can bear the cooling load of the whole system. The tube plate is fixed at one end and floats at one end. Disassembled tube bundles and water chamber lids for easy cleaning, inspection and maintenance during operation. The material of the cooler can be varied depending on the place of use and the conditions of the water system.
The tube-type cooler heat transfer tube is made of a copper tube to roll out the heat-dissipating fins, and the heat exchange area is large, the product volume is small, and the weight is light. Oil coolers are suitable for the cooling of low viscosity and cleaner oils; tube coolers can be used in plastic machinery, hydraulic equipment, air compressors, oil slick systems, fluid couplings, electrical installations and more. This series of oil cooler products can be designed and manufactured according to customer requirements from small to medium-sized.
When the water filter is connected to the pipeline system during operation, the water enters the water filter from the lower water inlet. When the impurities in the water pass through the core, the volume is larger than the core hole, and the enthalpy is trapped on the core, when accumulating to a certain amount. At that time, a certain pressure difference is generated between the inlet and outlet. (The filter precision diameter is different, the pressure difference is different, generally 0.15Mpa), manually open the drain valve, the sewage starts, turn the handle, the rotation direction can be rotated counterclockwise, every 10 seconds - 30 seconds, one handle, the handle points Each of the recesses is fixed, and the water flow back flushes the foreign matter adhering to the inner wall surface of the core. Until one rotation, close the drain valve and the manual drain is completed. If the user selects the automatic water filter, the pressure difference can be selected and the sewage can be drained regularly.
1. Differential pressure discharge: When the impurities accumulate to a certain amount, use the differential pressure signal between the cooling water inlet and outlet pipes to backwash the sewage, that is, the electric contact pressure gauge turns on the control signal, and the control mechanism opens the electric blowdown valve, and the electric reducer will Running at a speed of 3-6 rpm, the water flow reversely flushes the impurity dirt attached to the inner wall surface of the core, and discharges it into the cooling water outlet pipe through the sewage pipeline and the sewage discharge valve, and clears the discharge once about 5-10. Minutes or so. When large debris is present and the filter cannot be in place, the electric device should be operated in the opposite direction to flush debris.
2. If you need to set the time of sewage discharge, set the cleaning and sewage discharge time within 0-99 hours, generally set to 12 hours for sewage discharge, and the time setting can be adjusted according to the water quality of the power plant. That is, the set time is started to start the electric reducer to reverse the exhaust valve, and the reverse backwashing sewage is sequentially performed.
The working principle of the tubular cooler is very simple. We only need to pay attention to the cleaning of the scale of the tubular cooler when using it. It can be washed by the physical cleaning method, that is, the fixed tube plate type can be washed with a water pump brush. If it is a core-type or floating-head type, the tube bundle can be pumped out and rinsed; or the chemical cleaning method can be used. When the scale is changed from loose to dense and hard, the mechanical cleaning method can not achieve the purpose of cleaning. The pickling method should be used. You can choose the method that suits you.
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