Product Overview
In the process of natural gas extraction and pipeline transportation, solid particles and liquid impurities are often entrained, causing damage or failure of power equipment and instruments, posing a threat to the safe operation of pipelines. The role of filters is particularly important. It is mainly used for gas purification in various occasions such as natural gas purification plants, long-distance pipeline stations, urban gas transmission and distribution networks, gas power plants, natural gas chemical plants, coking plants, steel and metallurgical plants, and before non corrosive gas measurement.
Working principle of natural gas filter: When gas enters the gas chamber, it first hits the support pipe supporting the filter element, and larger solid-liquid particles are preliminarily separated and settle to the bottom of the container under the action of gravity (regularly discharged from the sewage outlet); Then, the gas passes through the filtration and coalescence filter layer from the outside to the inside, and solid particles are intercepted by the filtration medium. Liquid particles gradually coalesce and grow on the inner surface of the filter element due to the coalescence function of the filtration medium. When the liquid droplet reaches a certain amount, it will fall off the inner surface due to the impact of the airflow and enter the internal flow channel of the filter element to flow out of the material chamber. When the discharge chamber is discharged, a separation element is also installed, which can effectively capture liquid droplets to prevent them from being entrained at the outlet and further improve the separation effect. The final clean gas flows out of the filter.
A high-precision, high-flow filter element and its manufacturing method should adopt a multi-layer composite structure: stainless steel frameworks with different structures, corrosion resistance, excellent structural performance, high welding strength, and low airflow resistance; Different precision filter elements adopt different structural methods, and the new matrix mixed fiber increases the contact area of the medium and improves the filtration efficiency. The outer stainless steel mesh forms the first layer of surface filtration, while also playing an anti erosion role; The non-woven protective layer and imported fiberglass composite filter material constitute deep filtration; Polyester or fiberglass filter membranes are sandwiched in the middle layer to form the second layer of filtration; The inner stainless steel mesh serves as a support; The end of the filter element adopts a multi-layer composite and sealing structure of axial sealing and radial sealing, ensuring that gas will not bypass and the overall filtering effect and reliability will not occur.
As the amount of gas passing through increases, particles deposited on the filter element can cause an increase in the filter pressure difference. When the pressure difference reaches the specified value, it indicates that the filter element has been severely blocked and should be replaced in a timely manner. The process of pollutant loading is the process of blocking the through-hole of the coalescing filter element. When the coalescing filter element is blocked by contaminated particles, the holes that can pass through the liquid flow are reduced, and to ensure the flow rate through the filter material, the pressure difference needs to increase. The initial pressure difference of the filter separator shall not exceed 20KPa, and the replacement pressure difference shall not exceed 100KPa.
Natural gas filter cartridges can provide initial, medium, high, and different filtration levels for natural gas, effectively protecting the safe and efficient operation of natural gas using equipment. They can also be manufactured for high-pressure and low-pressure pipelines according to different operating conditions. At the same time, it can also effectively extend the service life of the equipment, better meet people’s requirements for product precision, thereby improving the quality of the machine product itself and greatly saving production costs.
Product Features
Technical Specification
| Working Pressure | 0.4 MPa, 1.6 MPa, 4.0 MPa, 6.4 MPa (Pressures above 6.4 MPa can be customized upon request.) |
| Working Temperature | -10°C to +85°C |
| Filtration Accuracy | 1 μm, 3 μm, 5 μm, 10 μm, 20 μm, 50 μm, 100 μm, 120 μm, etc. |
| Filtration Efficiency | Up to 99.99%, depending on the selected filtration accuracy. |
