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How a filter works
The working principle of the filter is: when the filter is operating, the water to be filtered enters through the nozzle, flows through the filter screen, and then exits through the outlet used for the process cycle into the pipeline required by the user. Particulate impurities in the water are trapped by the filter mesh. With this continuous cycle, more and more particles are captured, and the filtration speed gradually slows down.
The working principle of the filter is: when the filter is operating, the water to be filtered enters through the nozzle, flows through the filter screen, and then passes through the outlet used for the process cycle into the pipeline required by the user. Particulate impurities in the water are intercepted by the filter mesh. With this continuous cycle, more and more particles are captured, and the filtration speed slows down.
Influent sewage continues to enter, causing the filter openings to become smaller, resulting in a pressure difference between the inlet and outlet. When the difference reaches the set value, the differential pressure transmitter sends an electrical signal to the controller. The control system starts the drive motor, which rotates the shaft through transmission components, while the sewage outlet opens and discharges from the sewage outlet.
When the filter is cleaned, the differential pressure drops to a minimum, and the system returns to the initial filter state. The system operates normally. The filter consists of a housing, multiple filter elements, a backwash mechanism, and a differential pressure controller. A diaphragm inside the housing divides the inner cavity into upper and lower chambers. The upper chamber is equipped with multiple filter cartridges, fully filling the filtration space and significantly reducing the volume of the filter. The lower chamber is equipped with a backwash suction cup.
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Evaporator working principle: The heating chamber provides the heat required for evaporation to the liquid, causing the liquid to boil and vaporize; the evaporation chamber completely separates the gas and liquid phases. The vapor generated in the heating chamber carries a large amount of liquid droplets. When it reaches the larger space of the evaporation chamber, these liquids are separated from the vapor through their own condensation or the action of demisters. Usually, the demister is installed at the top of the evaporation chamber. According to the movement of the solution in the evaporator, there are: Circulation type. The boiling solution passes multiple times over the heating surface in the heating chamber, such as central circulation tube type, basket type, external heating type, Lewen type, and forced circulation type. Single pass type. The boiling solution in the heating chamber...
2018-09-28
7 Practical Heat Exchanger Technical Q&A
1. How does a heat exchanger transfer heat? Answer: In the most common wall-type heat exchanger, the main heat transfer methods are conduction and convection. The hot fluid first transfers heat to one side of the tube wall by convection, then the heat is conducted through the tube wall to the other side, and finally, the heat is transferred from the other side of the tube wall to the cold fluid by convection, thus completing the heat transfer process of the heat exchanger. 2. How does the flow velocity of the medium affect the heat transfer effect? Answer: The higher the flow velocity of the medium inside the heat exchanger, the greater the heat transfer coefficient. Therefore, increasing the flow velocity of the medium inside the heat exchanger can greatly improve the heat transfer effect.
2018-09-28
What are the functions of water purifier filters? What impurities can they filter out?
How important is the filter cartridge of a water purifier? Those who have bought a water purifier know that sellers always remind us to replace the filter cartridge regularly and timely. This is because after using the filter cartridge for a certain period, it will consume itself continuously due to filtering too many impurities until it reaches the end of its life. So, what exactly are the functions of the water purifier's filter cartridge? What can it filter? What are the functions of the water purifier filter cartridge? What impurities can it filter? Below, we will introduce the functions of the commonly used reverse osmosis water purifier filter cartridge. Generally speaking, the reverse osmosis water purifier has 5 stages of filter cartridges, which we will understand one by one below.
2018-09-28
How to recover the refrigerant from an industrial chiller to the receiver?
During the maintenance or servicing of industrial chillers, it is necessary to recover the refrigerant before proceeding with subsequent maintenance work. There are two common methods for recovering refrigerant from industrial chillers: one is to recover the refrigerant into a receiver, and the other is to recover it into a refrigerant cylinder. 1. How to recover the refrigerant from an industrial chiller into a receiver? Note: Our industrial chillers are equipped with high/low pressure controllers. When recovering refrigerant, the contacts of the high/low pressure controllers should be kept normally closed to prevent the machine from shutting down due to pressure issues during refrigerant recovery. The refrigerant of the industrial chiller should be...
2018-09-28
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