Horizontal fully automatic sewage filter

1、 Function and Application of Horizontal Fully Automatic Sewage Filter
LJZPG automatic backwash sewage filter can be widely used in central air conditioning systems, industrial cooling water systems, heat exchange systems, hot water boiler systems, and various other water supply pipeline systems, especially in 24-hour continuous operation non-stop systems. It can filter out various mechanical impurities and particulate debris generated during water operation, ensuring reliable operation of the system equipment.

2、 Structure and Working Principle of Horizontal Fully Automatic Sewage Filter
The LJZPG-L series automatic backwash sewage filter adopts stainless steel mesh with high processing capacity, long service life, and cleaning efficiency. Impurities entering the filter inlet with the fluid are intercepted by the mesh and accumulate at the back end of the filter screen. When it is necessary to discharge, turn the handle to close the diversion valve plate and open the discharge valve at the same time. At this point, the intercepted pressurized water flow is forced to enter the outer side of the filter cartridge and the shell interlayer through the inlet section of the filter cartridge, and in the opposite direction, flush the impurities adhered to the mesh from the outer side of the filter screen, and discharge them from the negative pressure discharge outlet, achieving the purpose of cleaning the filter cartridge. During the process of sewage discharge, most of the fluid still circulates in the system pipeline, truly achieving uninterrupted operation and improving production efficiency.

3、 Principle of Backwash Cleaning and Filtration

4、 [] Performance points
The LJZPG-L automatic backwash sewage filter is easy to operate and manage, with fast filtration speed, simple and reliable flushing, no need for power, backwash capability, and energy-saving
The flushing and sewage discharge process works normally at full flow rate, maintaining system flow and having a very low pressure drop (less than 0.05~0.1m water column), avoiding problems caused by low flow rate
Surface stains
The filter cartridge is connected to the pipe body as a whole, so it has high rigidity, is not easily damaged, and has a long service life
◎ Filtration degree: 3.0mm~0.3mm, can also be selected and manufactured according to user requirements

5、 【】 Installation parameters

*Number indicates screw connection port, others are flange connections

2. We can customize various sizes and diameters of filters according to customer requirements
3. The parameters in the table are for reference only. The actual dimensions of the equipment are subject to the supply status

6、 Installation position of automatic backwash sewage filter
Before installing LJZPG-L, it is necessary to have sufficient understanding of the current water treatment system, be familiar with the pipeline layout and water flow direction of the system, in order to be able to install filtration equipment in the correct position.
The LJZPG-L automatic backwash sewage filter can replace the 90O elbow and be installed horizontally or vertically. When installed vertically, the water flow direction should be from top to bottom; During installation, it should be noted that the direction of the arrow on the body casing must be aligned with the direction of the water flow. During normal operation, the diversion valve plate is in the open state.

7、 [] Usage
◎ Normal filtering state... By turning the handle to the "on" mark, control the diversion valve plate inside the filter to open and allow the pipeline fluid * to pass through the filter, and the discharge port is closed
state
◎ Backwash discharge status... Rotate the handle by hand to the "closed" mark, and the diversion valve plate will be in a closed state. Open the discharge port, and the obstructed fluid in the pipeline will quickly flow out of the discharge
Spray out the nozzle and flush out the impurities at the back of the filter screen. When there are no impurities in the sewage flow, reopen the diversion valve plate, close the sewage outlet, and complete a backwash sewage process.

8、 【】 Factory standard configuration

Serial number, name, place of origin

1. SUS304 filter material, pore size 2000um~2500um 2. Cleaning device steering valve 3. Sealing V-shaped cloth, imported material 4. Filter housing material carbon steel/Q235-B5 metal surface treatment phosphating treatment, inner liner epoxy anti-corrosion coating,
Spray treatment of alkyd paint on the shell: The configuration is the first solution adopted during production. Due to various factors such as raw material procurement and customer demand, the actual configuration is subject to factory inspection.

9、 [] Product selection

10、 [] Cleaning method

1. Regularly backwash and discharge sewage
Regularly clean and discharge pollutants, with a set time of 2-24 hours for operation. When the scheduled time is up, the electric actuator opens the drain valve,filterPerform sewage discharge for 30-60 seconds, then the electric actuator rotates the butterfly valve 90 ° to block the filter cartridge position, changes the water flow path, and performs backwash sewage discharge for 30-60 seconds. Reset the butterfly valve and continue draining for 3-5 seconds, then close the drain outlet.

2. Differential pressure control for sewage discharge
The operating value of the differential pressure controller can be set to 0.03-0.07MPa. When the pressure difference before and after the filter reaches the set value of the differential pressure controller, the differential pressure controller will operate,filterOpen the drain valve and wait for 30-60 seconds to complete. Reset the butterfly valve and continue draining for 3-5 seconds before closing the drain valve.

3. Manual control
By pressing the buttons on the control box, one can directly control the cleaning and discharging of pollutants.

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