Filter for heat exchanger, and manufacturing method of filter element thereof

Abstract

The invention discloses a filter for a heat exchanger, and a manufacturing method of a filter element thereof. The filter comprises a filter box, a coarse filter element and a secondary filter element, an air inlet and an air outlet are respectively arranged at two ends of the filter box, the coarse filter element is mounted at one side, close to the air inlet, in the filter box, the secondary filter element is mounted, close to the air outlet, in the filter box, and the secondary filter element is composed of foamed activated carbon used as a skeleton and an embedded porous ceramsite filter material subjected to nano-silver or nanometer titanium dioxide adsorption treatment. The secondary filter element adopts the foamed activated carbon as the skeleton, the foamed activated carbon has avery large internal surface area ratio, and also has the adsorption characteristics of activated carbon, and the internal of the foamed carbon has the three-dimensional network structure, so the foamed activated carbon used as the skeleton has a very high filtration effect; and the porous ceramsite filter material subjected to nano-silver or nanometer titanium dioxide adsorption treatment is embedded in the foamed activated carbon, so the secondary filter element has a high filtration efficiency, and also can inhibit and kill bacteria.

Description

Technical field [0001] The present invention relates to the technical field of heat exchangers, in particular to a filter used in a heat exchanger and a method for manufacturing the filter element. Background technique [0002] The heat exchanger is a device that exchanges heat between the imported outdoor air and the exhausted indoor air. For example, in winter, the higher greenhouse gas discharged can be used to heat the imported lower temperature outdoor air, while in summer. The exhausted indoor air after being cooled by the indoor air conditioner is used to absorb the heat of the higher temperature imported air from the outdoor, and its temperature is reduced. Generally, the air is filtered first during the introduction process, and the filtration generally uses a filter element. There are many types of existing filter elements, and the air contains many particles. The types of particles are roughly divided into charged particles, neutral particles (uncharged particles), or...

AI Technical Summary

Problems solved by technology

Traditional filter elements are more effective in filtering large particles of fine dust, such as ordinary melt-blown non-woven filter elements, but the adsorption effect on neutral particles such as aerosols or organic particles is not good. The key is that the particles in the air after filtration A lot of dust and bacteria are left on the filter paper of the filter element, which can easily cause bacteria to grow

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