working principle
ZQ series automatic self-cleaning filter is a fully automatic online self-cleaning water filter. A stainless steel brush, or sucking scanner, or wire brush + sucking combination is installed in the filter net. The above device is driven by the gear motor to rotate. Install an electric drain valve on or under the filter cap. When working, muddy water enters through the inlet and filters dirt through the stainless steel wedge mesh. The purified water flows out of the outlet. When the dirt collects too much, it causes poor filtration and the chamber pressure rises. When the pressure difference between the incoming and outgoing water reaches a certain value (preset), the differential pressure switch signals the controller. The controller starts the motor of the reducer and drives the internal device to rotate to brush off or suck dirt impurities. At the same time open the electric sewage valve, discharge dirt, cleaning time is about 1 minute, no need to cut off during the self-cleaning, sewage pressure loss does not exceed 0.05MPa, flow loss does not exceed 1%.
Equipment classification
According to the control mode, it can be divided into manual and automatic types;
According to the cleaning method, it can be divided into three types: brush type, suction type, and brush suction type.
According to the construction method, it can be divided into L and Y type.
Technical Parameters
Maximum water temperature
50°C
Recoil time
60-120 seconds
Recoil water consumption is about 500 liters (water pressure 4kg)
power supply
380v, 50HZ, 3 phase, controller: 220v
Motor Power
0.03-0.75kw
Filter Case Carbon Steel or Stainless Steel
Filter stainless steel (woven, sintered, wedge)
Filtration accuracy
50-3000 micron
Features
1) The filter accuracy defaults to 100 microns and is optional from 100 to 3000 microns. The filter area is large and the amount of contamination is high. Users can customize according to the actual working conditions.
2) The cleaning method is simple, and the electronic monitoring of the cleaning cycle can achieve automatic cleaning and drainage. The parameters in the automatic self-cleaning filter control system can be adjusted.
3) With motor overload protection, it can effectively protect the motor.
4) It has the features of uninterrupted water supply and no need of bypass when cleaning sewage, and the cleaning time is short, and the water consumption for sewage discharge is small, not exceeding 1% of the total flow.
5) It has strong maintainability, easy installation and disassembly.
6) The connection method with the user's pipeline is flange connection, the flange adopts the national standard flange, and the versatility is strong.
User selection reference factors:
â–² system processing water, equipment import and export diameter;
â–² impurity filter accuracy requirements;
â–² System operating conditions, such as: power source, pipeline pressure, space layout, temperature;
â–² Filter the water quality of the water body;
â–² For users with strong acid, strong alkali or other special water quality, special customization shall be required by the user;
â–² filter floc, in principle, do not use brush cleaning, suction cleaning design should be used.
The main application areas:
1. Air-conditioning HVAC system: Effectively reducing suspended solids and turbidity, solving the problems of condensers, coolers, and other system plugging problems, optimizing the effectiveness of descaling equipment and chemicals, and improving the efficiency of system operation;
2. Iron and steel: It is used to filter the cooling water of the raw material field, the sintering pellet plant for water treatment filtration, blast furnace, rolling mill, continuous caster, and other systems, and the impurity filtration of the high-pressure water phosphorus removal system;
3, automobile manufacturing: coating production line, cooling circulating water system, in the automotive, tractors, motorcycles, engine manufacturing water treatment processes are widely used;
4. Power plant: It is used for precision pre-processing of high-purity water preparation for power plant boilers, filtration of generator cooling circulating water, and sealing water;
5, petrochemical: In the circulating water field to do the side filter treatment, can be single or multi-type parallel main treatment, instead of filter filtration, reduce the filter load, can avoid a lot of flushing water consumption, cost savings;
6. Agricultural gardening and papermaking: In nozzles and nozzle systems, equipment clogging and wear caused by impurities should be reduced, so high-precision, high-automated filtration products need to be selected;
7, water supply and sewage treatment: used in the pretreatment system to improve the system operating efficiency;
8. Mine: Filter downhole spray water to ensure that the system is working properly;
9, machinery, food or other: the system of automatic, precision filtering, used to prevent the cooling water system plugging.
Control principle and differential pressure setting:
ZQ series automatic self-cleaning filter consists of motor, electric control box, control line (including control valve and pressure difference sensor), main pipe assembly, filter element assembly, stainless steel filter cartridge, frame assembly, transmission shaft, import and export connection flange, etc. The main components are composed of an electric control box and a control line that form the control part of the filter, which is used to implement the automatic cleaning process.
ZQ series automatic self-cleaning filter detects the pressure difference between the inlet and outlet through the outlet electrical contact pressure gauge. When the outlet pressure difference reaches the set value (lower limit value), the electronic controller sends signals to the control valve and the motor, causing the following Action: The motor drives the shaft to rotate, and the sewage solenoid valve is opened. The internal sucking device of the filter cartridge absorbs the impurities on the inner wall of the filter cartridge into the sewage discharge system through the internal pressure, and discharges the electromagnetic valve through the sewage discharge valve, thereby cleaning the filter element. The entire cleaning process will continue for 60-90 seconds. When the outlet pressure value reaches the set value (upper limit value), the drain solenoid valve is closed, the motor stops rotating, and the system returns to its initial state, ready for the next filtration process. If after the first cleaning process, the outlet pressure difference is still at the lower limit value, or does not reach the set upper limit pressure value, the control device will automatically restart the suction cleaning process until the inlet and outlet water pressures return to normal values ​​(settings The upper limit).
Inlet and outlet water pressure setting method:
1. After the equipment is installed, the water pressure test is completed
2. Observe the influent pressure value, set the lower limit value of the outlet electrical contact pressure gauge to be lower than the inlet pressure value between 0.03-0.06MPa, and set the upper limit value to be equal to the inlet pressure value or slightly lower than The water pressure value can be about 0.02 MPa.
For example, observe the inlet water pressure table value as 0.4 MPa, then set the lower limit of the outlet electrical contact pressure gauge to 0.27-0.25 MPa, and set the upper limit to 0.38-0.4 MPa.
ZQ series automatic self-cleaning filter is a fully automatic online self-cleaning water filter. A stainless steel brush, or sucking scanner, or wire brush + sucking combination is installed in the filter net. The above device is driven by the gear motor to rotate. Install an electric drain valve on or under the filter cap. When working, muddy water enters through the inlet and filters dirt through the stainless steel wedge mesh. The purified water flows out of the outlet. When the dirt collects too much, it causes poor filtration and the chamber pressure rises. When the pressure difference between the incoming and outgoing water reaches a certain value (preset), the differential pressure switch signals the controller. The controller starts the motor of the reducer and drives the internal device to rotate to brush off or suck dirt impurities. At the same time open the electric sewage valve, discharge dirt, cleaning time is about 1 minute, no need to cut off during the self-cleaning, sewage pressure loss does not exceed 0.05MPa, flow loss does not exceed 1%.
Equipment classification
According to the control mode, it can be divided into manual and automatic types;
According to the cleaning method, it can be divided into three types: brush type, suction type, and brush suction type.
According to the construction method, it can be divided into L and Y type.
Technical Parameters
Maximum water temperature
50°C
Recoil time
60-120 seconds
Recoil water consumption is about 500 liters (water pressure 4kg)
power supply
380v, 50HZ, 3 phase, controller: 220v
Motor Power
0.03-0.75kw
Filter Case Carbon Steel or Stainless Steel
Filter stainless steel (woven, sintered, wedge)
Filtration accuracy
50-3000 micron
Features
1) The filter accuracy defaults to 100 microns and is optional from 100 to 3000 microns. The filter area is large and the amount of contamination is high. Users can customize according to the actual working conditions.
2) The cleaning method is simple, and the electronic monitoring of the cleaning cycle can achieve automatic cleaning and drainage. The parameters in the automatic self-cleaning filter control system can be adjusted.
3) With motor overload protection, it can effectively protect the motor.
4) It has the features of uninterrupted water supply and no need of bypass when cleaning sewage, and the cleaning time is short, and the water consumption for sewage discharge is small, not exceeding 1% of the total flow.
5) It has strong maintainability, easy installation and disassembly.
6) The connection method with the user's pipeline is flange connection, the flange adopts the national standard flange, and the versatility is strong.
User selection reference factors:
â–² system processing water, equipment import and export diameter;
â–² impurity filter accuracy requirements;
â–² System operating conditions, such as: power source, pipeline pressure, space layout, temperature;
â–² Filter the water quality of the water body;
â–² For users with strong acid, strong alkali or other special water quality, special customization shall be required by the user;
â–² filter floc, in principle, do not use brush cleaning, suction cleaning design should be used.
The main application areas:
1. Air-conditioning HVAC system: Effectively reducing suspended solids and turbidity, solving the problems of condensers, coolers, and other system plugging problems, optimizing the effectiveness of descaling equipment and chemicals, and improving the efficiency of system operation;
2. Iron and steel: It is used to filter the cooling water of the raw material field, the sintering pellet plant for water treatment filtration, blast furnace, rolling mill, continuous caster, and other systems, and the impurity filtration of the high-pressure water phosphorus removal system;
3, automobile manufacturing: coating production line, cooling circulating water system, in the automotive, tractors, motorcycles, engine manufacturing water treatment processes are widely used;
4. Power plant: It is used for precision pre-processing of high-purity water preparation for power plant boilers, filtration of generator cooling circulating water, and sealing water;
5, petrochemical: In the circulating water field to do the side filter treatment, can be single or multi-type parallel main treatment, instead of filter filtration, reduce the filter load, can avoid a lot of flushing water consumption, cost savings;
6. Agricultural gardening and papermaking: In nozzles and nozzle systems, equipment clogging and wear caused by impurities should be reduced, so high-precision, high-automated filtration products need to be selected;
7, water supply and sewage treatment: used in the pretreatment system to improve the system operating efficiency;
8. Mine: Filter downhole spray water to ensure that the system is working properly;
9, machinery, food or other: the system of automatic, precision filtering, used to prevent the cooling water system plugging.
Control principle and differential pressure setting:
ZQ series automatic self-cleaning filter consists of motor, electric control box, control line (including control valve and pressure difference sensor), main pipe assembly, filter element assembly, stainless steel filter cartridge, frame assembly, transmission shaft, import and export connection flange, etc. The main components are composed of an electric control box and a control line that form the control part of the filter, which is used to implement the automatic cleaning process.
ZQ series automatic self-cleaning filter detects the pressure difference between the inlet and outlet through the outlet electrical contact pressure gauge. When the outlet pressure difference reaches the set value (lower limit value), the electronic controller sends signals to the control valve and the motor, causing the following Action: The motor drives the shaft to rotate, and the sewage solenoid valve is opened. The internal sucking device of the filter cartridge absorbs the impurities on the inner wall of the filter cartridge into the sewage discharge system through the internal pressure, and discharges the electromagnetic valve through the sewage discharge valve, thereby cleaning the filter element. The entire cleaning process will continue for 60-90 seconds. When the outlet pressure value reaches the set value (upper limit value), the drain solenoid valve is closed, the motor stops rotating, and the system returns to its initial state, ready for the next filtration process. If after the first cleaning process, the outlet pressure difference is still at the lower limit value, or does not reach the set upper limit pressure value, the control device will automatically restart the suction cleaning process until the inlet and outlet water pressures return to normal values ​​(settings The upper limit).
Inlet and outlet water pressure setting method:
1. After the equipment is installed, the water pressure test is completed
2. Observe the influent pressure value, set the lower limit value of the outlet electrical contact pressure gauge to be lower than the inlet pressure value between 0.03-0.06MPa, and set the upper limit value to be equal to the inlet pressure value or slightly lower than The water pressure value can be about 0.02 MPa.
For example, observe the inlet water pressure table value as 0.4 MPa, then set the lower limit of the outlet electrical contact pressure gauge to 0.27-0.25 MPa, and set the upper limit to 0.38-0.4 MPa.
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