What are the differences between a three-dimensional composite drainage net and a water filter net?

The choice of drainage materials is very important to ensure the stability of engineering structures and extend their service life. Three dimensional composite drainage network And water filter are two common drainage materials. So, what are the differences between the two?

 Drainage network

three-dimensional Composite drainage network

1. Structural characteristics

1、Three dimensional composite drainage network:

The three-dimensional composite drainage net is made of high-density polyethylene HDPE Three-dimensional structural drainage material made of. It consists of geotextile on both sides and a three-dimensional mesh core in the middle. The geotextile plays the role of protection, isolation and anti-filtration, while the three-dimensional mesh core in the middle forms an efficient drainage channel. Therefore, the drainage network can withstand high compressive loads and maintain long-term drainage performance.

2、Water filter:

The water filter is a relatively simple drainage material, which is made of metal, nylon, fiberglass and other materials. Its structure is relatively unitary and mainly relies on the size and shape of the mesh for filtration and drainage. The mesh size of the water filter screen can be adjusted according to the needs, and it can adapt to different filtration and drainage needs.

2. Functional role

1、Three dimensional composite drainage network:

Three-dimensional composite drainage net can provide complete filtration and drainage effect. It is capable of rapidly draining groundwater, reducing groundwater pressure, and also maintaining long-term stable drainage performance. It also has the characteristics of high strength, corrosion resistance, acid and alkali resistance, and long service life, and can adapt to various harsh environmental conditions.

2、Water filter:

The main function of the water filter screen is to filter impurities and drain water. It can filter out impurities in the fluid through the mesh, ensuring the purity of the fluid. The water filter also has a certain drainage capacity, but compared with the three-dimensional composite drainage network, its drainage performance may be worse. The choice of a water filter screen mainly depends on the characteristics of the filter media and the desired filtration effect.

Bentonite waterproof blanket(1)

Water filter screen

3. Application scenarios

1、Three dimensional composite drainage network:

Three-dimensional composite drainage network is commonly used in drainage projects such as railways, highways, tunnels, municipal projects, reservoirs, slope protection, landfills, gardens and sports fields. In these projects, the three-dimensional composite drainage network can drain groundwater and protect the engineering structure from the erosion of water damage.

2、Water filter:

Water filters can be used in some projects that have high requirements for fluid purity, such as air conditioners, purifiers, range hoods, air filters, dehumidifiers, dust collectors and other equipment. Water filter screens are also commonly used in fluid filtration and drainage systems in petroleum, chemical, mineral, food, pharmaceutical, painting and other industries.

4. Construction requirements

1、Three dimensional composite drainage network:

When laying the three-dimensional composite drainage network, precise construction should be carried out according to the design requirements. The drainage net should be laid in the direction of the slope, not horizontally. It is also necessary to ensure that one end of the drainage net and geotextile, geomembrane and other materials are placed in the anchorage ditch. Also pay attention to the overlapping and fixing methods of the drainage net to ensure its stability and drainage performance.

2、Water filter:

The installation of the water filter screen is relatively simple, generally as long as it is installed in a pipe or container where the fluid flows. However, during the installation process, we should also pay attention to whether the size and shape of the water filter screen match the filter medium to ensure the filtration effect. Also check and replace the water filter screen regularly to prevent the filter media from clogging or failing.

It can be seen from the above that there are significant differences between the three-dimensional composite drainage network and the water filtration network in terms of structural characteristics, functions, application scenarios and construction requirements. Which drainage material to choose depends on the specific engineering needs and conditions. In practical applications, it is necessary to comprehensively consider factors such as engineering characteristics, environmental conditions, filtration and drainage requirements, and select the most suitable drainage materials to ensure the stability of the engineering structure and prolong the service life.


Post time: Jun-07-2025