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High-dust-holding medium-efficiency trapezoidal filter bag

A filter bag and dust-holding technology, which is applied in the field of medium-efficiency bag filters, can solve the problems of increased use cost, short service life, and high structural resistance, and achieve the effects of reducing initial resistance, ensuring efficiency, and increasing dust holding capacity

Pending Publication Date: 2022-03-18
苏州科佳健康科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the development and upgrading of domestic industrialization, the market's demand for the cost of filter products and the cost of consumables in air-conditioning systems have been paid more and more attention by manufacturers. How to reduce filter resistance and prolong the service life of medium-efficiency bag filters has become a new issue. The proposition, now the ordinary medium-efficiency bag filter on the market is generally made of needle-punched cotton composite fine fiber melt-blown material, which is made by ultrasonic vertical stitching process, which has the defects of high structural resistance, low dust holding capacity and short service life. In order to ensure the ventilation and cleanliness required for production, higher energy consumption must be consumed, and the frequency of filter replacement is also higher, which greatly increases the cost of use

Method used

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  • High-dust-holding medium-efficiency trapezoidal filter bag

Examples

Experimental program
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Effect test

Embodiment 1

[0020] The present invention provides a technical solution: high dust-holding medium-efficiency trapezoidal filter bag, please refer to figure 1 and image 3 ,include,

[0021] The filter bag body 1, the vertical section of the filter bag body 1 is trapezoidal, and the area of ​​the cross section of the filter bag body 1 gradually increases from bottom to top; and,

[0022] The mounting part 2, the mounting part 2 is installed on the bottom wall of the filter bag body 1, and the cross section of the mounting part 2 is rectangular and hollow;

[0023] see figure 1 and figure 2 , the filter bag body 1 is sequentially composed of a pre-filter layer 101, a two-component melt-blown layer 102, a fiber melt-blown layer 103 and a spunbond layer 104 from the inside to the outside. The pre-filter layer 101 refers to the coarse fiber hot air cotton. It is to filter large particles of dust above 1um, play a pre-protective role on the back layer of melt-blown fibers, improve the suppo...

Embodiment 2

[0028] see figure 1 and image 3 , on the basis of Example 1, a sealing strip 21 is installed on the bottom wall of the mounting part 2, the mounting part 2 is an area used to connect with the filter frame, the material of the mounting part 2 is consistent with that of the filter bag body 1, and the sealing strip 21 It is an elastic sealing strip, and the sealing strip 21 is made of rubber material, which has certain elasticity and can be extended. The inner cavity of the sealing strip 21 is provided with an air storage tank 23, and the inner cavity of the air storage tank 23 is filled with air. When the filter bag body 1 is connected with the frame, the frame will squeeze the sealing strip 21, so that the sealing strip 21 extends and fully fits the frame, so that there will be no gap between the mounting part 2 and the frame, and the mounting part 2 A groove is provided at the connection part with the sealing strip 21, and Velcro 22 is installed on the inner cavity of the gr...

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Abstract

The invention discloses a high-dust-holding medium-efficiency trapezoidal filter bag in the technical field of medium-efficiency bag filters, which comprises a filter bag body with a trapezoidal vertical section and a mounting part mounted on the bottom wall of the filter bag body, and the area of the cross section of the filter bag body is gradually increased from bottom to top. According to the medium-efficiency trapezoidal bag type filter, the filter material is formed by compounding hardened hot air cotton, two-component melt-blown fibers, large-diameter melt-blown fibers and the anti-sticking layer, and automatic trapezoidal sewing is performed through customized and developed ultrasonic equipment, so that the filter material is high in structural strength and good in filling power; the efficiency of the bag type filter is guaranteed, the initial resistance of the filter is reduced, and the dust holding capacity is greatly improved due to the fact that the filter material has enough bulkiness.

Description

technical field [0001] The invention relates to the technical field of medium-efficiency bag filters, in particular to a high-dust-holding medium-efficiency trapezoidal filter bag. Background technique [0002] Medium-efficiency bag filter structure advantages The windward side, dust holding capacity, and service life are the best among medium-efficiency filters. The filtration efficiency spans a wide range and has strong applicability. Its price is cheap, the outer frame can be reused, and the filter bag is easy to replace. , which makes medium-efficiency bag filters very popular. [0003] There are many types of filters that we use daily. Generally speaking, medium-efficiency bag filters are used more. The medium-efficiency bag filter is suitable for capturing fine, dry, non-fibrous dust. The medium-efficiency bag filter is made of needle-punched cotton, hot-air cotton, melt-blown, spun-bonded and other non-woven fabrics, and uses the filtering effect of fiber fabrics to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16B01D46/00B01D46/06B01D46/02B32B5/02B32B5/26B32B5/06
CPCB01D39/1607B01D46/0001B01D46/023B32B5/02B32B5/022B32B5/26B32B5/06B32B2250/20
Inventor 雷华川
Owner 苏州科佳健康科技有限公司
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