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Basic Introduction to Filters
A filter is an essential device on the pipeline for conveying media, usually installed at the inlet of pressure reducing valves, pressure relief valves, constant water level valves, Fangong filters, and other equipment. The filter consists of a cylinder, stainless steel filter mesh, sewage discharge part, transmission device, and electrical control part. The water to be treated passes through the filter cartridge of the filter mesh, where impurities are blocked. When cleaning is needed, simply remove the detachable filter cartridge, clean it, and reinstall it.
A filter is an indispensable device on the pipeline of the conveying medium, usually installed at the inlet of pressure reducing valves, pressure relief valves, constant water level valves, square filters, and other equipment. The filter consists of a cylinder, stainless steel filter mesh, sewage discharge part, transmission device, and electrical control part. The water to be treated passes through the filter cartridge of the filter mesh, where impurities are blocked. When cleaning is needed, the removable filter cartridge can be taken out, treated, and reinstalled, making maintenance very convenient. During operation, the water to be filtered enters through the water inlet, flows through the filter mesh, and then enters the user's required pipeline for process circulation through the outlet. Particulate impurities in the water are trapped inside the filter mesh. As this cycle continues, the trapped particles increase, the filtration speed slows down, and the incoming sewage continues to flow in, causing the filter pores to become smaller. This creates a pressure difference between the inlet and outlet. When the pressure difference reaches a set value, the differential pressure transmitter sends an electrical signal to the controller. The control system starts the drive motor to rotate the shaft through the transmission assembly, while the sewage outlet opens to discharge waste. After the filter mesh is cleaned and the pressure difference drops to the minimum value, the system returns to the initial filtering state and operates normally.
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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