In the field of energy transportation, the safe and efficient transportation of natural gas is of great importance, and the purity of natural gas directly affects the stable operation of transportation pipelines and terminal equipment. The natural gas filter elements produced by Xinxiang Lifeierte Filter Corp.,LTD, with their excellent filtration performance and reliable quality, have become key equipment for ensuring gas quality in many natural gas transportation projects. The following takes a national - level natural gas long - distance pipeline project as an example to introduce the application of our company's natural gas filter elements in detail.
I. Project Background
A national - level natural gas long - distance pipeline project is over 2,000 kilometers long, undertaking the important task of transporting natural gas resources from the western region to industrial and civil areas in the eastern region, with an annual gas transmission volume of 15 billion cubic meters. During the natural gas extraction and preliminary treatment process, solid particle impurities (such as sand, rust, etc.), liquid impurities (such as free water, condensate oil), and some acidic gases (such as hydrogen sulfide, carbon dioxide) will be mixed into the gas. If these impurities are not effectively filtered, many problems will arise:
Wear of Pipelines and Equipment
Under the scouring of high - speed flowing natural gas, solid particle impurities will cause serious wear to the inner wall of pipelines, compressor impellers, valves and other equipment, shortening the service life of the equipment and increasing the equipment maintenance cost. According to statistics, without effective filtration, the annual wear thickness of the inner surface of the pipeline reaches 0.3 - 0.5 millimeters, and the replacement cycle of the compressor impeller is shortened to 1 year.
Blockage Risk
The mixture of liquid impurities and solid particles is likely to form blockages in low - lying areas of the pipeline and throttling devices, affecting the natural gas transportation efficiency and even causing abnormal pressure fluctuations in the pipeline, bringing potential safety hazards.
Decline in Gas Quality
The presence of acidic gases will reduce the calorific value of natural gas, corrode pipelines and equipment, damage the gas equipment of terminal users, and also lead to environmental pollution problems.
The ordinary filter elements originally used in this project had low filtration accuracy and short service life, making it difficult to meet the high - standard requirements of natural gas transportation. In order to ensure the quality of natural gas transportation and the safe and stable operation of the pipeline system, the project team decided to introduce high - performance natural gas filter elements. After several rounds of strict testing and screening, it finally selected the natural gas filter elements produced by our company.
II. Application and Implementation of Our Company's Natural Gas Filter Elements
(I) Equipment Selection and Customization
Based on parameters such as the gas transmission flow rate (200,000 cubic meters per hour), working pressure (8 - 12MPa), gas composition, and impurity content of this natural gas long - distance pipeline project, the technical team of our company customized dedicated natural gas filter elements for it. The filter elements adopt a three - stage filtration structure design:
Primary Filtration Layer
Made of large - pore polypropylene fiber material, it can quickly intercept larger particle impurities with a diameter greater than 10 microns, such as sand and rust lumps, initially reducing the impurity content in the gas.
Intermediate Filtration Layer
Selected glass fiber composite filter media with a filtration accuracy of 3 microns, which can effectively filter medium - sized solid particles and some liquid impurities, further purifying the natural gas.
Fine Filtration Layer
Adopted polytetrafluoroethylene (PTFE) coated filter media with a filtration accuracy as high as 0.3 microns, which can intercept tiny particle impurities and extremely fine liquid droplets, and also has a certain adsorption effect on acidic gases, ensuring the high quality of the output natural gas.
(II) System Installation and Debugging
Filter Element Installation
Filter devices were set up at key nodes such as compressor stations and distribution stations along the pipeline, and the natural gas filter elements were installed in special filter housings. Each filter is equipped with multiple filter elements in parallel to meet the large - flow filtration requirements. At the same time, a backup filter element group is set up to facilitate filter element replacement without interrupting gas supply.
Supporting Monitoring System
Pressure sensors, flow sensors, and online gas analyzers were installed to real - time monitor the pressure difference before and after the filter elements, natural gas flow, and gas composition changes. When the pressure difference before and after the filter elements reaches 0.15MPa, the system will automatically alarm to remind operators to check or replace the filter elements; the online gas analyzer real - time detects the impurity content and composition of natural gas to ensure that the output gas meets national standards.
Debugging and Optimization
The professional technicians of our company conducted a two - week debugging of the filtration system, checked the installation tightness of the filter elements to ensure no air leakage; adjusted the parameter settings of the monitoring system to make it accurately reflect the operation status of the filter elements; at the same time, provided comprehensive training for the project operators, including filter element replacement procedures, daily equipment maintenance, common fault troubleshooting, etc.
III. Application Effects
Effect Category | Specific Performance |
Significant Improvement in Filtration Effect | - The removal rate of solid particles reaches 99.9%, and the solid particle content in the filtered natural gas is lower than 0.1mg/m³, far exceeding the national standard (1mg/m³)- The removal rate of liquid impurities exceeds 98%, effectively avoiding liquid accumulation and blockage problems in the pipeline- It has a certain adsorption effect on acidic gases such as hydrogen sulfide, reducing the hydrogen sulfide content in natural gas from the initial 15mg/m³ to below 5mg/m³, reducing the corrosion risk to pipelines and equipment |
Reduction in Equipment Maintenance Costs | - The pipeline wear rate is slowed down, and the annual wear thickness of the inner surface of the pipeline is reduced to 0.05 - 0.1 millimeters, extending the pipeline service life by more than 1 time- The maintenance cycle of equipment such as compressors and valves is extended to 3 - 5 years, saving about 12 million yuan in equipment maintenance costs annually- The service life of the filter elements is as long as 2 - 3 years. Compared with the original ordinary filter elements, the replacement cycle is extended by 3 - 4 times, reducing the labor and material costs of filter element replacement |
Improvement in Transportation Efficiency and Safety | - Effectively reduces pipeline blockage, and the natural gas transportation efficiency is increased by 15%, ensuring the stability and continuity of gas supply- Reduces the risk of equipment failures and safety accidents caused by impurities. During the project operation period, no major safety accidents caused by gas impurities occurred |
IV. Summary of Application Experience
Accurate Matching of Requirements is the Foundation
The working conditions of different natural gas transportation projects vary greatly. Our company customizes the filter element structure and filtration accuracy through detailed analysis of project parameters, ensuring a perfect fit between the performance of the filter elements and actual needs.
Advanced Filtration Technology is the Core
The three - stage filtration structure combined with filter media of different materials realizes the efficient interception and purification of various impurities in natural gas, which is the key to ensuring the filtration effect.
Complete Service System is the Guarantee
From the early - stage selection and customization, the mid - stage installation and debugging to the later - stage maintenance and training, our company provides comprehensive services, promptly solving problems encountered during project operation and ensuring the long - term stable operation of the filter elements.
The successful application of our company's natural gas filter elements in this national - level natural gas long - distance pipeline project fully verifies the reliability and advancement of the products. In the future, Xinxiang Lifeierte Filter Corp.,LTD will continue to innovate and research, providing higher - quality and more efficient filtration solutions for natural gas transportation and more energy fields.
