Stainless Steel Gas Filter Stainless Steel Liquid Filter

Stainless Steel Gas Filter Stainless Steel Liquid Filter

【1】Working PrincipleThe filter element uses a high-strength wedge-shaped screen, with automatic cleaning of the filter element controlled by differential pressure and timing. When impurities accumulate on the surface of the filter element, causing the inlet-outlet differential pressure to increase to the set value, or when the timer reaches the preset time, the electric control box sends a signal to drive the backwashing mechanism. When the backwashing suction port aligns with the filter element inlet, the drain valve opens. At this time, the system depressurizes and drains, creating a negative pressure zone inside the suction cup and the filter element where the relative pressure is lower than the water pressure outside the filter element. This forces some clean circulating water to flow from the outside to the inside of the filter element, carrying the impurity particles adsorbed on the inner wall into the suction tray and out through the drain valve. The specially designed screen creates a jet effect inside the filter element, washing away any impurities from the smooth inner wall.

Technical Parameters

4. Screen aperture: 50-1000μm

5. Backwashing time: The single cycle of backwashing takes about 23 seconds

1. Inlet and outlet diameter:

In principle, the inlet and outlet diameter of the filter should not be smaller than that of the connected pump, and generally matches the diameter of the inlet pipeline.

2. Nominal pressure:

Determine the pressure rating of the filter based on the maximum pressure that may occur in the filtration pipeline.

3. Selection of mesh number:

Mainly consider the size of impurity particles, determined according to the medium process requirements. The particle size for various specifications of wire mesh can be found in the "Screen Specifications" table below.

4. Filter material:

The material of the filter is generally the same as that of the connected process pipeline. For different service conditions, filters made of cast iron, carbon steel, low alloy steel, or stainless steel may be considered.

5. Calculation of filter resistance loss

For water filters, under normal rated flow velocity, the pressure loss is 0.52 to 1.2 kPa.

Filter

During operation, the water to be filtered enters through the inlet, flows through the screen, and exits through the outlet into the required pipeline for process circulation. Particles and impurities in the water are trapped inside the screen. As circulation continues, more and more particles are trapped, slowing down the filtration rate. Meanwhile, incoming wastewater continues to enter, causing the filter pores to become smaller and smaller, resulting in a pressure difference between the inlet and outlet. When this difference reaches the set value, the differential pressure transmitter sends an electrical signal to the controller, which then starts the drive motor. The drive motor rotates the shaft via transmission components, and the drain port opens to discharge impurities. After the screen is cleaned, the pressure difference drops to a low value, and the system returns to the initial filtration state, operating normally.

Design Features

1. The filtration equipment uses advanced internal mechanical structures to achieve true high-pressure backwashing功能, easily and thoroughly removing impurities trapped by the screen. It ensures no dead corners in cleaning, no衰减 in flow rate, guaranteeing filtration efficiency and long service life.

2. The stainless steel filter uses 304, 316L stainless steel wedge-shaped screens, which are strong, precise, corrosion-resistant, with a high filtration accuracy of up to 25 microns.

3. The stainless steel filter achieves automatic backwashing through its own retrieval and应变 function, capable of handling unstable water quality fluctuations without manual intervention.

4. The stainless steel filter has few vulnerable parts, no consumables, low operating and maintenance costs, and simple operation and management.

5. The stainless steel filter operates precisely, allowing flexible adjustment of backwashing differential pressure time and time set values according to different water sources and filtration精度.

6. During the backwashing process, each (group) of screens is backwashed sequentially, ensuring safe and efficient cleaning of the screens while other screens continue filtering unaffected.

7. The stainless steel filter uses a pneumatic drain valve, with short backwashing duration and low water consumption, making it environmentally friendly and economical.

8. The stainless steel filter has a compact and rational structural design, small footprint, and flexible and convenient installation and movement.

Advantages of the stainless steel filter:

Stable filtration effect;

Deep filtration, excellent dirt retention capability;

Simple operation, easy maintenance;

Low system operating costs, reliable performance, with a service life of up to 10 years or more.

The stainless steel disc type is made of stainless steel material to prevent rust over time; the equipment is mainly used in industries such as: chemical, power, steel, machinery manufacturing, food and beverage processing, plastics, papermaking, mining, metallurgy, textiles, petrochemicals, environment, golf courses, automotive, and pre-filtration for tap water.

Installation and UseThis type of valve should generally be installed horizontally in the pipeline.

During installation and use, pay attention to protecting the control box, sensors, and transmission parts to prevent damage.

Connect the pipeline according to the direction indicated by the arrow on the body of the stainless steel self-cleaning filter.

When调试 the electric part, ensure that the motor's rotation direction is consistent with the marked direction.

Installation should consider ease of maintenance, and a bypass pipeline should be installed.

During installation, try to position the drain outlet at the bottom to facilitate the discharge of杂物.

Connect the drain pipe to the drain ditch, and avoid making the drain pipeline too long.Filter Screen Accuracy Conversion