Automatic self-cleaning filter

Introduction

Fully self-cleaning filter overcomes the traditional filter product, easy to be blocked, and the filtering part needs to disassemble the cleaning and cannot monitor the state of filter status. The function of filtering the raw water and automatically cleans the filter element, and the system is not intermittently water supply, and the operation of the filter can monitor the working state of the filter, the degree of automation is high.

Development

Self-cleaning filtration technology is a new type of filtration technology developed in the late 1970s. The most important advantage is that it can use water pressure self-operation, self-cleaning, And when cleaning is cleaned, the automation is high, the degree of automation is high, the pressure loss is small, and the filter residue is not required. Self-cleaning filters are suitable for separation filtration in industrial, agriculture, municipal, seawater dueling processes.

Features

1 Fully automatic self-cleaning filter The bottom of the cleaning filter can cause a vortex to form a vortex, forming a centrifugal force, which allows the solid particles away from the filter disc, gather in filtration Top of the server, reducing the filter cleaning frequency.

2, the filter core is cut into water, blows the disc, the disc is rotated, allowing the discs to disperse the disc onto the disc, easy to clean, Reduce cleaning time.

3, the outer casing is ABS or nylon engineering plastic, acid and alkase resistance, and improvity.

4, the disc diameter is large, the same number of disc phase corresponds to the filter area, thereby increasing the filtering capacity.

5, the filter lumen is in line with hydraulic characteristics, with streamlined structure, which reduces water flow head loss, and reduces energy consumption.

6, the original filter shell is integrally formed, processing technology, avoiding various drops of drops caused by steel filter shell; high-strength ductile iron material is excellent, extended product service life;

7, proprietary filter element design manufacturing technology, high-precision filter is never worn;

8, reliable intelligent control, filtering, cleaning, sewage automation, unmanned, Water supply is uninterrupted;

9, leading product structure function design, compact structure, large filtration area, high pipeline, low pipeline;

10, optimized control mode design, short pressure, less water consumption, water resources;

11, product line cover each flow and accuracy range, various structural forms, adapt to user complex conditions

12, each parameter can be adjusted according to the actual working condition, easy to operate, maintenance-free, long life.

13, the filtering accuracy is default to 100 microns, and can be optionally selected from 10 to 3,000 microns, high filtration area, high nonal, and the user can customize according to actual conditions.

14, the cleaning method is simple, and the cycle electronic monitoring can be achieved. The parameters in the automatic self-cleaning filter control system can be adjusted.

15, there is a motor overload protection, which can effectively protect the motor.

16, having an uninterrupted water supply in the cleaning of the sewage, no need to bypass, and the cleaning time is short, the amount of water consumption is small, no more than 1% of total flow.

17, strong maintenance, easy to install and easy.

18, the connection to the user line is the flange, the flange uses the national standard flange, the versatility.

Structure

Fully automatic self-cleaning filter consists of a housing, a multi-filter, a backwashing mechanism, an electrical control box, a reduction, an electric valve, and a differential pressure controller. The transes in the housing are divided into upper and lower cavities, and there is a plurality of filter cents in the upper cavity, which makes full utilize the filter space, significantly reduces the filter volume, and the lower cavity is mounted with a backwashing cup. . When working, the turbid fluid enters the filter under the filter, and passes through the inner cavity of the filter element, which is larger than the impurities of the filter core slit, and the cleaning liquid passes through the gap to the upper cavity, and finally sent from the outlet.

Working principle

The impurities enters the filter by the inlet, streamfiltration, then enter the fine filter 2 in the lumen, filter, filtrate The water purification is out of exit. The filtered impurities is adsorbed on the fine filter and thus the pressure difference of the surface of the filter is formed. When the differential pressure reaches the set value (such as 0.5 bar), the pressure sensor transmits the signal to the controller, the controller opens the drain valve 4 from the sewage port, resulting in the pressure of the hydraulic motor cavity and impurity collector 3 and 5 chambers However, thereby producing a negative pressure suction similar to the principle of vacuum cleaning, the impurities of the surface of the screen are discharged through the discharge hole by the rolling washing through the epithelium and the hydraulic motor 7, and is discharged through the discharge hole. Drainage makes hydraulic motor and debris colonization to enable the entire filter to rinse. The large-sized filter also has a drive cylinder 8 to control the longitudinal movement of the impurity collector, and prevent it from moving too fast, so that the entire filter can be rinsed by the nozzle. The entire anti-flush process is automatically controlled, only a few seconds, which will not cause interruption of the main flow during self-cleaning.

Application range

Automatic filter is mainly used for purification water, can be used in industrial, agriculture, electricity, electronics, pharmaceutical, food, printing, architecture, steel, metallurgy, papermaking , Coal mines, swimming pools, landscapes, greening, etc., water filtration, water treatment, water modification, especially for microfilters in water quality requirements, and many functions have many functions to remove water sediment, clay, rust, Impurities such as suspended, algae, biocataher, corrosive products, macromolecular bacteria, organic and other small particles, to achieve water purification purposes.

Precautions

1. The device should be installed by bypassing so that the equipment is inspected and maintained without stopping.

2. This device can be installed according to the site conditions. The equipment must be connected to the pipeline in the direction of the water outlet. When vertical is installed, the equipment inlet is facing up, and the sewage port is facing down .

3. Equipment inlet, water outlet, sewage port should be installed (the sewage valve should be a fast valve).

4. The net distance between the devices is not less than 1500mm; the net distance of the equipment and the wall is not less than 1000mm; the equipment and the surrounding repair space should be left in front of the repair space of not less than 500 mm.

5. On the equipment import and export pipe, the pipe bracket should be provided at close proximity to the pipe; the bracket is provided below or equal to the valve of the DN150 connected to the container tube.

Prerequisite

Water filtering is to remove or reduce the suspended matter and colloidal substances in the water to a certain extent, and the process of general water requirements is called water. deal with. Usually, the pretreatment of automatic self-cleaning filters has the following three steps:

1, precipitation

utilize natural precipitation (such as a sanding tank), or the agent softened (eg Add chemicals), allowing the sediment in the water, and the large particulate suspension temporarily generates a precipitate.

2, filtering

The treated water is passed through a granular filter material, and the impurities in the water are removed by the filter material, or water. Such as various filters, filters, etc.

3, mixed clarification.

Using the effect of the coagulant, the solid particles in the water are adsorbed by contacting each other, changing its size shape and density to achieve separation from the water.