Cloth bag sealing type assembly structure

By applying pressure with a pressure ring at the connection between the filter bag and the tube sheet, the sealing ring is deformed to form a double sealing structure, which solves the problem of decreased sealing performance caused by the aging of the sealing ring and improves the dust removal efficiency and stability of the bag filter.

CN223439447UActive Publication Date: 2025-10-17MAANSHAN CHUANGLUYUAN ENVIRONMENTAL PROTECTION MASCH EQUIP CO LTD
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Patent Information

Application Number
CN202422917449.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-10-17
Estimated Expiration
2034-11-28

AI Technical Summary

Technical Problem

After prolonged use, the sealing ring at the connection between the filter bag and the tube sheet is prone to aging and deformation, which leads to a decrease in sealing performance. Dust-laden gas may bypass the filter bag and enter the clean air chamber, affecting the dust removal effect.

Method used

The pressure ring is threaded onto the outside of the gland. By rotating the pressure ring downwards, pressure is applied, causing the sealing ring to deform and fit tightly against the sleeve and fixing groove, forming a double sealing structure, including sealing ring one and sealing ring two, to enhance the sealing effect.

Benefits of technology

It effectively prevents dust-laden gas from leaking from the bag openings and gaps in the filter bag, ensuring a good sealing effect, improving the filtration efficiency of the dust collector, adapting to component wear and changes in operating conditions, and maintaining stable operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cloth bag sealing type assembly structure, and relates to the technical field of cloth bag dust removers. The cloth bag sealing type assembly structure comprises a tubesheet and a cloth bag, the cloth bag is installed at the lower end of the tubesheet through a bag hole, a sleeve opening is formed outside the bag hole, a keel is connected to the sleeve opening in a clamped mode, the keel comprises a gland, a pressing ring, a longitudinal rib and a supporting ring, the top end of the cloth bag is fixed to the sleeve opening through the gland, and the longitudinal rib and the supporting ring are connected to the pressing ring in a clamped mode. A fixing groove is formed in the position, located outside the bag hole, of the tubesheet, a first sealing ring is placed between the fixing groove and the sleeve opening, a pressing ring is arranged over the first sealing ring, and the pressing ring is connected to the outside of the gland in a threaded mode. In order to overcome the defect that the sealing rings at the cloth bag and the tubesheet are easy to deform after being used for a long time, certain pressure can be applied to the upper end of the sealing ring I through the pressing ring, so that the sealing ring I deforms, the inner end and the outer end of the sealing ring I can be tightly attached to the sleeve opening and the fixing groove, and a good sealing effect is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to cloth bag dust catcher technical field, specifically is a cloth bag sealing type assembly structure. BACKGROUND

[0002] At the joint of cloth bag and flower board, most cloth bag dust catchers are sealed through sealing ring. However, sealing ring is prone to aging and deformation after long time use, leading to sealing performance decline. If not replaced in time, dust-containing gas will bypass cloth bag and directly enter clean gas chamber from the gap between bag hole and cloth bag, affecting dust removal effect.

[0003] Therefore, in order to solve the defect that sealing ring at cloth bag and flower board is prone to deformation after long time use, it is necessary to provide a cloth bag sealing type assembly structure. CONTENT OF UTILITY MODEL

[0004] The utility model discloses a cloth bag sealing type assembly structure, and certain pressure can be applied to the upper end of sealing ring one through the pressing ring, so that sealing ring one produces deformation, and then the inner and outer ends thereof can be closely combined with the sleeve opening and the fixed groove, so that good sealing effect is ensured, so as to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A cloth bag sealing type assembly structure, comprising a flower board and a cloth bag, the cloth bag is installed at the lower end of the flower board through a bag hole, a sleeve opening is arranged outside the bag hole, a keel is clamped and connected at the sleeve opening, the keel comprises a gland, a pressing ring, a longitudinal rib and a support ring, and the top end of the cloth bag is fixed at the sleeve opening through the gland.

[0007] A fixed groove is arranged at the position outside the bag hole of the flower board, a sealing ring one is arranged between the fixed groove and the sleeve opening, a pressing ring is arranged above the sealing ring one, and the pressing ring is screw connected outside the gland.

[0008] Preferably, a flange one and a flange two are sequentially arranged from top to bottom outside the pressing ring, and the diameter of the flange one and the flange two is less than that of the fixed groove.

[0009] Preferably, a sealing ring two is fixedly installed at the edge of the flange two, and the side end of the sealing ring two abuts against the inner wall of the fixed groove.

[0010] Preferably, an external thread is arranged at the top of the longitudinal rib, and the longitudinal rib is movably inserted into the gland, and the longitudinal rib and the gland are fastened through a nut.

[0011] Preferably, the support ring is equidistantly welded to the lower end of the longitudinal rib, and the cloth bag is supported through the support ring.

[0012] Compared with the prior art, the utility model has the advantages of the following:

[0013] 1、 this cloth bag sealed assembly structure, through the compression ring thread connection in the gland outside and located in the sealing ring one's just above, when assembling, through rotating the compression ring makes it move downward, and to sealing ring one exerts certain pressure, make sealing ring one produce deformation, and its inside and outside end can be tightly fitted with sleeve mouth and fixed groove, this kind of tight fit effectively prevents dust-containing gas from leaking from the gap between bag hole and cloth bag, guarantees good sealing effect, greatly improves the efficiency of cloth bag dust collector in the dust removal process, avoids the situation that dust-containing gas bypasses cloth bag and directly enters the clean gas chamber occurs;

[0014] 2、 this cloth bag sealed assembly structure, through the setting of sealing ring two, formed double sealing structure, further enhances the sealing effect on the basis of sealing ring one, thereby ensure the sealing of the whole cloth bag and the flower board junction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure perspective drawing of the utility model;

[0016] Figure 2 It is cloth bag and flower board sealed connection schematic view of the utility model;

[0017] Figure 3 It is the Figure 2 A enlarged view;

[0018] Figure 4 It is flower board structure schematic view of the utility model;

[0019] Figure 5 It is keel structure schematic view of the utility model.

[0020] In the drawing: 1, flower board;11, bag hole;12, sealing ring one;13, sleeve mouth;14, fixed groove;2, cloth bag;3, keel;31, gland;32, compression ring;321, flange one;322, flange two;323, sealing ring two;33, longitudinal rib;331, external thread;34, support ring. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-3 A cloth bag sealed assembly structure, including flower board 1 and cloth bag 2, cloth bag 2 is installed in the lower end of flower board 1 through bag hole 11, and bag hole 11 is provided with sleeve mouth 13 outside, and sleeve mouth 13 is clamped and connected with keel 3, and keel 3 includes gland 31, compression ring 32, longitudinal rib 33 and support ring 34, and the top end of cloth bag 2 is fixed at sleeve mouth 13 through gland 31.

[0022] Among them, the size of bag hole 11 is matched with the installation size of cloth bag 2, and the clamping size of sleeve mouth 13 and keel 3 is matched.

[0023] It should be noted that the gland 31 is used to fix the top end of the cloth bag 2 at the sleeve opening 13, to ensure that the cloth bag 2 does not fall off the flower board 1 during work, and also to prevent displacement of the cloth bag 2.

[0024] Please refer to Figures 1-4 , the flower board 1 is provided with a fixing groove 14 at a position outside the bag hole 11, the fixing groove 14 is placed between the sleeve opening 13 and the sealing ring 12, and the sealing ring 12 is provided above the sealing ring 12. The compression ring 32 is threadedly connected to the outside of the gland 31.

[0025] Among them, the size relationship between the sleeve opening 13 and the fixing groove 14 needs to consider the size tolerance of the sealing ring 12, so as to ensure that the sealing ring 12 can be normally placed and play a sealing role.

[0026] It should be noted that this sealing design structure is relatively flexible and can adapt to a certain degree of component wear and working condition change. For example, when the sealing ring 12 is slightly worn or deformed due to long-term use, the pressure of the compression ring 32 can be adjusted to compensate for it, so as to maintain good sealing performance and enable the equipment to operate stably under different working conditions such as working pressure, temperature and dust content.

[0027] Please refer to Figure 3 , the compression ring 32 is provided with a flange 321 and a flange 322 from top to bottom, and the diameters of the flanges 321 and 322 are smaller than the fixing groove 14.

[0028] Among them, the flange 321 is provided to facilitate the installer to have a force point when rotating the compression ring 32.

[0029] It should be noted that the design of the flanges 321 and 322 with diameters smaller than the fixing groove 14 can avoid interference between the compression ring 32 and the side wall of the fixing groove 14 during installation of the compression ring 32, so that the installer can easily place the compression ring 32 in the correct position, and when adjusting the compression ring 32 (such as rotating to apply pressure to the sealing ring 12), the size is not too large to be hindered by the fixing groove 14, and the operation is more convenient.

[0030] Please refer to Figures 3-4 , the flange 322 is fixedly installed with a sealing ring 323 at the edge, and the side end of the sealing ring 323 abuts against the inner wall of the fixing groove 14.

[0031] It should be noted that the design of the sealing ring 323 realizes double sealing, and when the compression ring 32 is installed in place, the sealing ring 323 is pressed between the flange 322 and the inner wall of the fixing groove 14, forming an additional sealing line.

[0032] And the sealing ring two 323 helps to stabilize the flange two 322 and the fixed groove 14 between the connection, through the abutment with the inner wall of the fixed groove 14, to a certain extent, limit the flange two 322 in the fixed groove 14 in the shake, thereby improving the stability of the overall structure of the compression ring 32, which is very important to ensure that the compression ring 32 to the sealing ring one 12 uniform pressure, because the compression ring 32 structure stability, can better pass the pressure to the sealing ring one 12, realize good sealing effect.

[0033] Please refer to Figure 5 The top of the longitudinal rib 33 is provided with external thread 331, and the movable insertion in the gland 31, the longitudinal rib 33 and the gland 31 through the nut fastening.

[0034] It should be noted that this kind of connection has adjustable, in the installation process, can be adjusted by rotating the nut to adjust the depth of the longitudinal rib 33 inserted into the gland 31, to adapt to different length of cloth bag 2 assembly requirements.

[0035] Please refer to Figure 5 The support ring 34 is equidistantly welded to the lower end of the longitudinal rib 33, and the cloth bag 2 is supported by the support ring 34.

[0036] It should be noted that the design of the support ring 34 can provide uniform support force for the cloth bag 2, which helps to maintain the shape of the cloth bag 2, prevent the cloth bag 2 from local collapse or distortion, ensure the uniformity of the filter space inside, improve the filtering efficiency.

[0037] Working principle: the cloth bag sealing type assembly structure, in use, by rotating the compression ring 32, the compression ring 32 downward to the sealing ring one 12 pressure, make the sealing ring one 12 deformation, so as to fill the space between the fixed groove 14 and the sleeve 13, effectively prevent the dust containing gas from the bag hole 11 and the gap between the cloth bag 2 leakage, ensure the filtering efficiency of the cloth bag dust collector.

Claims

1. A cloth bag sealed assembly structure, comprising a flower plate (1) and a cloth bag (2), wherein the cloth bag (2) is mounted on the lower end of the flower plate (1) through a bag hole (11), characterized in that: The bag hole (11) is provided with a sleeve (13) outside, and a keel (3) is snap-connected to the sleeve (13). The keel (3) includes a gland (31), a pressure ring (32), longitudinal ribs (33) and a support ring (34). The top end of the cloth bag (2) is fixed to the sleeve (13) through the gland (31); The flower plate (1) is provided with a fixing groove (14) at a position outside the bag hole (11), a sealing ring (12) is placed between the fixing groove (14) and the sleeve (13), a pressure ring (32) is provided just above the sealing ring (12), and the pressure ring (32) is threadedly connected to the outside of the pressure cover (31).

2. The bag sealing assembly structure according to claim 1, characterized in that: The pressure ring (32) is provided with flange 1 (321) and flange 2 (322) in sequence from top to bottom. The diameters of flange 1 (321) and flange 2 (322) are both smaller than the fixing groove (14).

3. The bag-sealed assembly structure according to claim 2, characterized in that: A second sealing ring (323) is fixedly mounted on the edge of the second flange (322), and the side end of the second sealing ring (323) abuts against the inner wall of the fixing groove (14).

4. The bag sealing assembly structure according to claim 1, characterized in that: The top of the longitudinal rib (33) is provided with an external thread (331) and is movably inserted into the gland (31). The longitudinal rib (33) and the gland (31) are fastened by a nut.

5. The bag sealing assembly structure according to claim 1, characterized in that: The support rings (34) are welded to the lower ends of the longitudinal ribs (33) at equal intervals, and the cloth bag (2) is supported by the support rings (34).