A low-resistance, high-efficiency oil fume filter

By designing a water-absorbing and oil-absorbing guide layer and a wave-shaped filter layer structure, the problem of reduced air permeability caused by the accumulation of oil-water mixtures is solved, achieving high-efficiency filtration and low-energy oil fume filtration, extending the filter's lifespan and purifying indoor air.

CN224622944UActive Publication Date: 2026-08-11ZHEJIANG GOLDENSEA ENVIRONMENT TECH
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Patent Information

Application Number
CN202521713952.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-12
Publication Date
2026-08-11
Estimated Expiration
2035-08-12

AI Technical Summary

Technical Problem

During use, existing fume filters tend to accumulate oil-water mixtures on the filter material layer, leading to a sharp decrease in air permeability, increased load and energy consumption of the range hood, and the release of fumes into the indoor environment.

Method used

A low-resistance, high-efficiency oil fume filter was designed, comprising a water-absorbing and oil-absorbing guide layer, a middle filter layer, and a bottom filter layer. The oil fume and oil-water mixture are guided to the annular groove in a timely manner through the guide channel to avoid accumulation. The wave-shaped folded filter layer increases the filter material area, and the three-dimensional spatial structure composed of fiber mesh and mesh cloth improves the air permeability.

Benefits of technology

It effectively extends the service life of the filter, reduces air resistance, reduces the energy consumption of the range hood, improves the oil fume adsorption efficiency, quickly purifies indoor air, and reduces the harm of oil fumes to the human body.

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Abstract

This utility model discloses a low-resistance, high-efficiency oil fume filter, aiming to provide a low-resistance, high-efficiency oil fume filter that can effectively improve the problem of oil-water mixtures easily accumulating on the filter material layer, leading to a sharp decrease in the air permeability of the filter material layer, thereby extending the service life of the oil fume filter and reducing the energy consumption of the range hood. It includes: a shell, including a top cover, an outer frame located at the edge of the top cover, and an inner frame located inside the outer frame, with an annular groove formed between the outer frame and the inner frame, and a plurality of guide ports connected to the annular groove on the top of the inner frame, and a support mesh on the top cover; a bottom grille, including a plurality of grille bars connected to the bottom of the inner frame, with guide grooves on the grille bars opening upwards and communicating with the annular groove; and a filter structure located inside the inner frame, including a water-absorbing and oil-absorbing guide layer, an intermediate filter layer, and a bottom filter layer distributed in sequence, with the water-absorbing and oil-absorbing guide layer located at the top of the inner frame, and the bottom filter layer supported on the bottom grille.
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