Sealing element with ventilation function

Abstract

The utility model relates to a sealing element with a ventilation function, which belongs to the technical field of dust removers and comprises a tubesheet, a plurality of tubesheet holes are arranged on the tubesheet in an array manner, a part of the tubesheet holes are provided with filter material cylinders, and the rest of the tubesheet holes are provided with plugging elements; the plugging piece comprises a filter material layer and a supporting head cover; the filter material layer is fixed to the tubesheet hole through the supporting head cover, the filter material layer covers the tubesheet hole, the filter material layer is used for sealing the tubesheet hole and ventilating the tubesheet hole, and through the synergistic effect of the pulse tube plug, the ventilating layer and the supporting head cover, under the condition that the wind speed at the tubesheet hole is not increased, the tubesheet hole can be ventilated, and the tubesheet hole can be effectively prevented from being blocked by the pulse tube plug, the ventilating layer and the supporting head cover. Compared with the prior art, the filter cartridge has the advantages that the effective plugging of the tubesheet of the filter element which is reduced in installation is realized, the internal scouring property of the filter cartridge is kept in a reasonable range, the service life is prolonged, the damage risk is reduced, the scheme is simple and economical, the performance of the traditional bag type dust collector can be effectively improved, and the stricter environment-friendly emission standard is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust collectors, and in particular relates to a sealing component with a ventilation function. Background Art

[0002] The flower plate plays the role of fixing the filter element, forming a seal with the filter element, and separating the dust-containing space and the clean air space in the dust collector. There are several flower plate holes on the flower plate. The filter element passes through the flower plate holes and filters the dust-containing gas into purified gas, thus playing a filtering role. The common filter elements on the market are filter bags and pleated filter cartridges.

[0003] The pulse tube is the key component that connects the pulse valve to the gas distribution box. When the pulse valve is opened, compressed air enters the blowpipe from the gas distribution box, and is guided into the filter element at high speed through the short drain pipe set on the blowpipe, forming a dust cleaning process.

[0004] Bag dust collectors are commonly used in the field of industrial dust removal, and their filter elements are filter bags. However, in the face of increasingly stringent environmental protection policies, existing equipment needs to be upgraded to meet ultra-low emission requirements. Traditional transformation solutions are costly and affect production, while replacing filter element filter bags with pleated filter cartridges provides an alternative option for energy saving and pollution reduction.

[0005] This solution can be seamlessly connected to the existing system. Its folding structure increases the filtration area, optimizes the layout and reduces the number of installations, while reducing the risk of wear, and is therefore popular with companies. A number of holes are arranged in an array on the flower plate, some of which are installed with filter elements, and the remaining holes are installed with seals. However, after optimizing the layout or reducing the number of installations, the flower plate holes that are not installed with filters need to be blocked, otherwise the dust chamber will be connected to the clean air chamber, which will cause powder leakage and cause the dust content in the discharge to exceed the standard. At present, the commonly used blocking method is plugging. However, after the plug is blocked, the total air permeability area of ​​the flower plate will be reduced, resulting in an increase in the wind speed at the flower plate hole, thereby increasing the scouring of the inside of the filter, reducing the service life, and increasing the risk of breakage. Utility Model Content

[0006] In order to solve the above problems existing in the prior art, the utility model provides a seal with a breathable function to solve the problem that when the filter cartridge is installed in the flower plate hole of the existing dust collector, the air flow velocity is too large to affect the practical life of the filter cartridge.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A sealing member with ventilation function, comprising a ventilation layer, a supporting head cover and a sealing ring;

[0009] The breathable layer is firmly fixed on the supporting head cover by special glue; the supporting head cover is tightly connected with the edge of the flower plate hole by relying on the sealing ring; the breathable layer fills the flower plate hole, and the breathable layer is used to seal the flower plate hole and maintain the breathability of the flower plate hole.

[0010] Preferably, the air permeable layer is provided with a filter material layer and a coated fiber layer, both of which are fiber structures; the thickness of the filter material layer and the coated fiber layer is at least 99.58% for dust particles with a diameter of more than 0.3 μm.

[0011] Preferably, the density of the air holes in the air permeable layer satisfies the air permeability range of 50~100L / .s@200Pa.

[0012] Preferably, the shape of the support head cover is adapted to the hole of the flower plate, the sealing ring is installed through the hole of the flower plate, the support head cover is detachably connected to the hole of the flower plate through the sealing ring, and the support head cover is in the shape of a circular ring.

[0013] Preferably, it also includes a pulse component, which is installed on the dust collector body. The pulse component includes a pulse tube and a pulse tube plug. The pulse tube is provided with a plurality of pulse branches, which are connected to the pulse tube, and the pulse tube plug is installed at the air outlet end of the pulse branch.

[0014] Preferably, the vascular plug is installed corresponding to the flower plate hole.

[0015] The beneficial effects of the utility model are:

[0016] Through the synergistic effect of the pulse tube plug, the breathable layer and the supporting head cover, it is possible to effectively seal the filter plate without increasing the wind speed at the plate hole, while keeping the internal scouring properties of the filter cartridge within a reasonable range, extending the service life and reducing the risk of damage. This technical solution is simple and economical, and can effectively improve the performance of traditional bag dust collectors and meet more stringent environmental emission standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of a cross-sectional structure of a seal installation provided in one embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of the blocking member provided in one embodiment of the utility model;

[0020] Figure 3This is a schematic diagram of the structure of a support head cover provided in one embodiment of the utility model;

[0021] Legend: 1. Flower plate; 11. Flower plate hole; 2. Filter element; 3. Breathable layer; 31. Breathable hole; 4. Support head cover; 5. Sealing ring; 6. Pulse assembly; 61. Pulse tube; 611. Pulse branch pipe; 62. Pulse tube plug. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] like Figure 1-Figure 3 As shown, a sealing member with ventilation function comprises a ventilation layer 3, a supporting head cover 4 and a sealing ring 5;

[0024] The breathable layer 3 is firmly fixed on the support head cover 4 by special glue; the support head cover 4 is closely connected with the edge of the flower plate hole 11 by relying on the sealing ring 5; the breathable layer 3 fills the flower plate hole 11, and the breathable layer 3 is used to seal the flower plate hole 11 and maintain the air permeability of the flower plate hole 11; during the installation process, the breathable layer 3 fills the flower plate hole 11, which not only plays a sealing role, but also maintains the air permeability of the flower plate hole 11. The entire seal is tightly attached to the flower plate hole 11 through the cooperation of the support head cover 4 and the sealing ring 5, realizing the sealing and air permeability of the flower plate hole 11; the breathable layer 3 is the core part of the seal, and materials with excellent air permeability and filtration performance are selected, such as polyester or polytetrafluoroethylene (PTFE). According to the working environment and needs, the type, thickness and pore size of the filter material can be optimized to achieve the best filtering effect. It can effectively close the unused plate holes 11, prevent the airflow exchange between the dust chamber and the clean air chamber, avoid dust leakage, and keep the wind speed at the plate holes 11 stable, reduce the scouring inside the filter element 2, extend the service life, and reduce the risk of damage;

[0025] In short, through the synergistic effect of the above-mentioned pulse plug 62, breathable layer 3 and supporting head cover 4, it is possible to achieve effective sealing of the flower plate 1 of the installed filter element 2 without increasing the wind speed at the flower plate hole 11, while maintaining the internal scouring property of the filter element 2 within a reasonable range, extending the service life and reducing the risk of damage. This technical solution is simple and economical, and can effectively improve the performance of traditional bag dust collectors and meet more stringent environmental emission standards.

[0026] In one embodiment, the air permeable layer 3 is provided with a filter material layer and a coated fiber layer, both of which are fiber structures; the thickness of the filter material layer and the coated fiber layer for dust particles with a diameter of 0.3 μm or more reaches at least 99.58% of the filtration efficiency. The air permeable layer 3, as a key part of the seal, is composed of a filter material layer and a coated fiber layer. The filter material layer is made of high-quality fiber material, has a large specific surface area and good adsorption performance, and can effectively capture and filter dust particles in the air. The coated fiber layer adopts a coating technology to cover a layer of microporous membrane on the fiber structure, which not only enhances the filtration effect, but also ensures the air permeability. The thickness of the filter material layer and the coated fiber layer is carefully designed to achieve efficient filtration of dust particles with a diameter of 0.3 μm or more. After testing, the filtration efficiency of this air permeable layer 3 is at least 99.58%, which can effectively prevent fine dust from entering the flower plate hole 11, thereby protecting the cleanliness of the internal environment.

[0027] In one embodiment, the density of the air holes 31 in the air permeable layer 3 satisfies the air permeability range of 50~100L / .s@200Pa. The control of the air permeability is crucial to maintaining the air permeability of the plate hole 11. If the air permeability is too small, the gas flow will be blocked, affecting the normal use of the plate hole 11; if the air permeability is too large, the sealing effect may be reduced, making it easy for foreign substances to enter the plate hole 11. The density of the air holes 31 is accurately calculated and regulated to meet the requirement of air permeability range of 50~100L / .s@200Pa. The determination of the density of the air holes 31 involves multiple factors such as material selection, fiber structure, and pore size of the microporous membrane. By optimizing these parameters, the air permeable layer 3 can ensure that the gas can pass smoothly while maintaining the sealing effect, thereby meeting the demand for air permeability in practical applications.

[0028] In one embodiment, the shape of the support head cover 4 is adapted to the flower plate hole 11, the sealing ring 5 is installed through the flower plate hole 11, the support head cover 4 is detachably connected to the flower plate hole 11 through the sealing ring 5, the support head cover 4 is in a circular ring shape, and the support head cover 4 is used to fix and protect the adaptive filter material; considering the convenience and stability of installation and the degree of fit with the flower plate 1, the support head cover 4 can be made of metal or polymer material, and its shape and size match the flower plate hole 11. For the stability and sealing of the connection, the support head cover 4 is connected to the flower plate 1 through the sealing ring 5, which can ensure that no displacement, falling off or leakage occurs during the operation, thereby maintaining the integrity and filtration efficiency of the system.

[0029] In one embodiment, it also includes a pulse component 6, which is installed on the dust collector body. The pulse component 6 includes a pulse tube 61 and a pulse tube plug 62. The pulse tube 61 is provided with a plurality of pulse branches 611, which are connected to the pulse tube 61, and the pulse tube plug 62 is installed at the gas outlet end of the pulse branch 611. In actual application, when the dust collector needs to be cleaned, the pulse component 6 starts to work, and the cleaning gas enters each pulse branch 611 through the pulse tube 61, and is controlled by the pulse tube plug 62 to be sprayed to the flower plate hole 11 in the form of high-speed and high-pressure pulses. In order to prevent the high-speed fluid from acting on the air-permeable layer 3 and causing damage to the air-permeable layer 3, a plug is installed at the output end of the pulse branch 611 to seal the flower plate hole 11 installed with a seal to prevent the air flow from flowing out and acting on the slide plate hole, while the pulse branch 611 corresponding to the slide plate hole installed with the filter element 2 is not installed with a plug, and the high-speed cleaning gas is used for dust removal.

[0030] In one embodiment, the vascular plug 62 is installed corresponding to the flower plate hole 11.

[0031] The pulse tube plug 62 is configured to block the airflow during the spraying process to prevent the airflow from directly impacting the adaptive filter material, thereby protecting the filter material from damage. The pulse tube plug 62 can be made of corrosion-resistant and wear-resistant materials such as silicone to ensure a close fit with the pulse branch pipe 611. The metal fixed connection belt is used to achieve quick connection and fixation with the pulse tube 61. This design simplifies the installation process, effectively improves the efficiency of equipment maintenance and reduces costs.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A seal with ventilation function, characterized in that: It includes a breathable layer, a supporting head cover and a sealing ring; The breathable layer is firmly fixed on the supporting head cover by special glue; the supporting head cover is tightly connected with the edge of the flower plate hole by relying on the sealing ring; the breathable layer covers the flower plate hole, and the breathable layer is used to seal the flower plate hole and maintain the breathability of the flower plate hole.

2. A seal with air permeability according to claim 1, characterized in that: The air permeable layer is provided with a filter material layer and a membrane-coated fiber layer, and both the filter material layer and the membrane-coated fiber layer are fiber structures.

3. A seal with air permeability according to claim 2, characterized in that: The filter material layer and the coated fiber layer are both provided with a plurality of air holes, and the density of the air holes in the air permeable layer satisfies the air permeability range of 50~100L / .s@200Pa.

4. A seal with air permeability according to claim 1, characterized in that: The shape of the support head cover is adapted to the hole of the flower plate, the sealing ring is installed through the hole of the flower plate, the support head cover is detachably connected to the hole of the flower plate through the sealing ring, and the support head cover is in the shape of a circular ring.

5. A seal with air permeability according to claim 1, characterized in that: It also includes a pulse component, which is installed on the dust collector body. The pulse component includes a pulse tube and a pulse tube plug. The pulse tube is provided with a plurality of pulse branches, which are connected to the pulse tube, and the pulse tube plug is installed at the air outlet end of the pulse branch.

6. A seal with air permeability according to claim 5, characterized in that: The vascular plug is installed corresponding to the flower plate hole.

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