Sealing device for head of gas filter element

Abstract

The invention relates to a sealing device for the head of a gas filter element. The sealing device is provided with a matching face capable of being in matched connection with the outer surface of the surface layer of the head of the gas filter element and a sealing face capable of being in contact with a first sealing structure in a pore plate in a sealing mode. According to the sealing device for the head of the gas filter element, the head of the gas filter element and the pore plate can be kept in good sealing for a long time, the sealing stability between the gas filter element and the pore plate is obviously improved, the situation that the head of the gas filter element is broken due to transverse bending stress is avoided, the service life of the gas filter element is effectively prolonged, and the loss rate of the gas filter element is obviously lowered.

Description

technical field [0001] The invention relates to a device for sealing, especially suitable for but not limited to a sealing device for the head of a gas filter element. Background technique [0002] In industrial production, a common way to filter gas is to enter the raw gas from the outside into the raw gas chamber in the filter device, and multiple gas filter elements, such as bag filters, are installed in the filter device. Such as figure 1 As shown, each gas filter element 2 is clamped on the orifice plate 1 through the position of the head. Below the orifice plate 1 is the raw gas chamber, and above the orifice plate 1 is the clean air chamber. The raw gas is filtered by the gas filter element 2 and enters the clean gas chamber from the gas filter element 2, and then the filtered clean gas is discharged through the exhaust structure. Therefore, it must be sealed between the orifice plate 1 and the gas filter element 2, otherwise the raw gas will enter the clean gas ch...

AI Technical Summary

Problems solved by technology

Generally, an elastic sealing structure 3 is provided at the corresponding place between the orifice plate 1 and the surface layer 21 of the head surface 21 of the gas filter element 2. Irregularity, there are individual differences in the sealing performance, which often leads to the failure of the seal of the head of the individual gas filter element 2, resulting in the pollution of the clean gas chamber by the original gas

In addition, when the gas filter element 2 is used for a certain period of time, a large amount of dust and filter cake formed by dust will adhere to its surface. The joint between the gas filter element 2 and the orifice plate 1 is subject to bending stress. At present, the head of the gas filter element 2 and the orifice plate 1 are almost rigidly connected. When the bending stress of the gas filter element 2 is too large, its clamping The head will cause a break, rendering the gas filter 2 useless

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