The backwash filter is different from the traditional filter filter equipment, and its core technology is the "dynamic self-cleaning" mechanismWith the transformation of global energy structure and the deepening of environmental protection policies, heating system as the core component of building energy consumption, its operating efficiency and environmental performance are increasingly concerned. In northern China, central heating and distributed heating systems have become the key infrastructure for ensuring people's livelihood in winter, but problems such as pipeline blockage, equipment loss and energy consumption caused by water pollution still restrict the long-term stable operation of the system. According to statistics, the heat exchange efficiency caused by impurities deposition in the traditional heating system can be reduced by 15%-30%, and the average annual increase of maintenance costs exceeds 8% (data source: China Building Energy Efficiency Association 2023 report). In order to solve this pain point, the intelligent backwashing filter launched by Henan Xinxiang Lifelte Filter Co., LTD. (hereinafter referred to as "Lifelte") has achieved dynamic water quality purification and long-term operation of the system through technological innovation, providing a breakthrough solution for the industry.. The equipment achieves continuous filtration through the following steps: multi-stage filtration system: The combination of stainless steel wedge mesh and high-precision filter element, the filtration accuracy can reach 10-300 microns, effectively intercepting impurities such as rust, sediment, and biological mud. Liffert's patented "gradient filtration structure" design allows pollutants of different particle sizes to settle step by step to avoid blockage of a single filter layer. Differential pressure sensing and automatic backwashing: The built-in differential pressure sensor monitors the filter load in real time, and starts the backwashing procedure when the pressure difference exceeds a set threshold (such as 0.5MPa). Through a hydraulically driven rotary brush and high-pressure water flow to reverse wash the filter screen, it takes only 30 seconds to complete self-cleaning, and the system continues to operate without downtime for maintenance. Intelligent control and energy Municipal central heating system: In a city heat network project in North China, Lifelt deployed 48 intelligent backwash filters for a total length of 120km of heating main lines. Operation data show that the pipe network blockage failure rate decreased by 89%, the heat loss decreased by 12%, and the annual maintenance cost was saved by 3.2 million yuan. Corrosion-resistant material and -40℃ low temperature adaptability ensure stable operation in extreme climates. Industrial heat recovery: In the waste heat recovery system of a steel plant, the filter intercepts the oxide sheet and sludge in high temperature cooling water (80 ° C), improving the heat transfer efficiency by 18% and saving 24,000 tons of water annually. Liefert's custom models with high temperature tolerance (up to 150 ° C) and explosion-proof design meet the special needs of industrial scenarios. Smart building heating: A commercial complex in Beijing uses Lifeldt iot filters to achieve zoned water quality management through a cloud platform. The system automatically identifies the load changes of different floors, dynamically adjusts the backwash frequency, and reduces the energy consumption of central air conditioning by 9%, which is certified by LEED Gold.

consumption optimization: The equipment is equipped with an iot module, which can remotely monitor the filtration status, set the backwash cycle, and automatically adjust the flushing intensity to adapt to water quality changes. The experimental data show that Lifeldt filter saves 30% energy and reduces backwash water consumption by 50% compared with traditional equipment. Compared with traditional manual cleaning filters, backwashing technology achieves the following breakthroughs: maintenance costs are reduced by 70% : manual intervention and shutdown losses are reduced, and the service life of heat exchange equipment is extended by 2-3 times (such as boilers and heat exchangers). System stability: Dynamic filtration to avoid instantaneous flow fluctuations, ensure heating temperature uniformity. Environmental benefits: Reduce overheating emissions caused by plugging and the use of chemical cleaning agents, in line with the requirements of the "Green Building Evaluation Standard" (GB/T 50378-2019).

Policy-driven and market demand: The national "14th Five-Year Plan" building energy efficiency Plan clearly requires that the impurity treatment rate of heating system is ≥95%, the superimposed carbon emission standards are tightened, and the backwash filter has become a mandatory technology for compliance upgrading. It is expected that the Chinese market will reach 3.5 billion yuan in 2025, with an average annual growth rate of more than 20% (Prospective Industry Research Institute data). Technology iteration direction: AI adaptive: Combined with big data analysis, the equipment will realize water pollution prediction and pretreatment, and further reduce the backwashing frequency. Material innovation: The application of graphene composite filters is expected to improve the filtration accuracy to the nanometer level, while reducing the weight of the equipment. Energy recovery: Some manufacturers are developing heat recovery technology for backwashing wastewater to achieve a "zero discharge" closed loop. Competitive advantage: The whole industry chain layout: from filter material research and development, precision manufacturing to intelligent control system integration, to ensure product stability and cost advantage. Service network: 24-hour response service system covering the whole country, providing customized design and lifelong maintenance. Innovation certification: The products have passed the EU CE and ISO 9001 certification, and won the 2023 China Environmental Protection Equipment Innovation Award.

Backwash filter is not only a technology upgrade, but also an important path for the sustainable development of the heating industry. Through the dual innovation of "dynamic filtration + intelligent management", Liffert solves the core pain points of traditional systems and provides efficient and economical solutions for municipal, industrial and civil scenarios. With the release of policy dividends and market demand, backwashing technology is expected to become the industry standard, and promote the deep transformation of heating systems to green and intelligent directions.