Square nuclear-grade dense-fold high-efficiency filter

Abstract

The utility model discloses a square nuclear-grade dense-pleat high-efficiency filter which comprises a square box body, a filter element, an air inlet end plate and an air outlet end plate which are respectively arranged on two sides of the inner side wall of the square box body, and gum type closed-hole sponge silicon rubber sealing gaskets which are arranged at two ends of the filter element, V-shaped rib pressing plates are arranged on the air inlet end plate and the air outlet end plate in a staggered manner, and the back gum type closed-hole sponge silicon rubber sealing gaskets are arranged on the back gum type closed-hole sponge silicon rubber sealing gaskets. A ventilation opening is formed between every two adjacent V-shaped rib pressing plates, and the filter elements are arranged between the V-shaped rib pressing plates located between the air inlet end plate and the air outlet end plate in a V shape. According to the utility model, through the arrangement of the gum type closed-hole sponge silicon rubber sealing gaskets, when the filter element is mounted, the gum type closed-hole sponge silicon rubber sealing gaskets with gum at the two ends of the filter element are respectively adhered to the V-shaped rib pressing plates, so that the mounting of the filter element and the gum type closed-hole sponge silicon rubber sealing gaskets fixedly connected to the filter element can be completed; and the mounting efficiency of mounting the filter element and the sealing gasket by a worker is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of nuclear-grade air filter technology, specifically a square nuclear-grade pleated high-efficiency filter. Background Technology

[0002] The conventional square-shaped nuclear-grade pleated high-efficiency particulate air (HEPA) filter is an air purification device widely used in nuclear-grade environments. It typically features a square design and employs a pleated filter element structure to achieve highly efficient air filtration. This type of filter plays a crucial role in nuclear facilities, effectively removing harmful substances such as fine particles, radioactive materials, and chemical contaminants from the air, ensuring that the air quality inside nuclear facilities meets stringent safety standards.

[0003] Conventional square nuclear-grade pleated HEPA filters require special adhesive to attach the gaskets, which consist of four gaskets arranged in an Ω-shaped joint. The installation process of the filter element and gaskets is relatively complex and inefficient. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as complex installation processes and low installation efficiency of filter elements and sealing gaskets, this utility model provides a square core-grade pleated high-efficiency filter.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a square nuclear-grade densely pleated high-efficiency filter, comprising a square housing, a filter element, an air inlet end plate and an air outlet end plate respectively disposed on both sides of the inner side wall of the square housing, and adhesive-backed closed-cell sponge silicone rubber sealing gaskets disposed at both ends of the filter element. V-shaped ribs are alternately arranged on the air inlet end plate and the air outlet end plate, and a ventilation opening is provided between two adjacent V-shaped ribs. The filter element is arranged in a V-shape between the V-shaped ribs located on the air inlet end plate and the air outlet end plate.

[0007] As a preferred technical solution of this utility model, a protective net is provided on the air outlet surface of the square box near the filter element.

[0008] As a preferred embodiment of this utility model, a groove is provided on one side of the outer wall of the square box, and a handle is provided in the groove.

[0009] As a preferred embodiment of this utility model, the handle is fixedly installed on the inner wall of the groove by a torsion spring mechanism.

[0010] As a preferred embodiment of this utility model, the cross-section of the adhesive-backed closed-cell sponge silicone rubber sealing gasket is semi-circular.

[0011] As a preferred embodiment of this utility model, a preliminary filter screen is provided in the ventilation opening of the air inlet end plate, and a perforated plate is provided in the ventilation opening of the air outlet end plate.

[0012] The beneficial effects of this utility model are:

[0013] 1. This type of square nuclear-grade pleated high-efficiency filter, through the setting of adhesive-backed closed-cell sponge silicone rubber sealing gaskets, allows for easy installation of the filter element and the sealing gaskets fixedly connected to it by attaching the adhesive-backed closed-cell sponge silicone rubber sealing gaskets at both ends of the filter element to the V-shaped pressure plate during filter element installation. This effectively improves the installation efficiency of the filter element and sealing gasket. Compared with traditional rectangular or square cross-sections, the semi-circular cross-section of the adhesive-backed closed-cell sponge silicone rubber sealing gasket can provide a more uniform pressure distribution in different directions, ensuring the reliability of the seal.

[0014] 2. This type of square nuclear-grade pleated high-efficiency filter, through the setting of V-shaped rib plates, the V-shaped structure itself has high strength and stability, thus effectively improving the overall structural strength of the device;

[0015] 3. This type of square nuclear-grade pleated high-efficiency filter, through the setting of the protective net, can disperse the pressure and reduce the pressure on the filter element when the airflow passes through the filter 2, thereby improving the filter element's overpressure resistance.

[0016] 4. This type of square nuclear-grade pleated high-efficiency filter, through the setting of the perforated plate, when the airflow is discharged through the vent located at the air outlet end plate, the perforated plate can disperse the airflow that might otherwise be concentrated as it is discharged from the vent of the air outlet end plate, thereby improving the uniformity of the airflow discharge. At the same time, the perforated plate can disperse the concentrated air into multiple small airflows, thereby reducing the intensity of airflow noise. Furthermore, when the airflow passes through the perforations, the friction and disturbance of the airflow by the edges of the perforations will make the frequency distribution of noise more uniform, reduce the generation of high-frequency noise, and make the sound softer. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a front-view three-dimensional structural schematic diagram of a square core-level densely pleated high-efficiency filter according to this utility model;

[0019] Figure 2 This is a rear-view three-dimensional structural diagram of a square core-level densely pleated high-efficiency filter according to this utility model;

[0020] Figure 3 This is a top cross-sectional view of a square nuclear-level densely pleated high-efficiency filter according to this utility model;

[0021] Figure 4 This is a schematic diagram of the filter element structure of a square nuclear-level pleated high-efficiency filter according to this utility model.

[0022] In the diagram: 1. Square housing; 2. Filter element; 3. Air inlet end plate; 4. Air outlet end plate; 5. Adhesive-backed closed-cell sponge silicone rubber sealing gasket; 6. V-shaped rib plate; 7. Ventilation opening; 8. Protective net; 9. Groove; 10. Handle; 11. Preliminary filter screen; 12. Perforated plate. Detailed Implementation

[0023] The following is combined with Figure 1-4 The preferred embodiments of the present invention will be described herein. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Reference Figure 1 , Figure 2 and Figure 3 This utility model discloses a square nuclear-grade pleated high-efficiency filter, including a square box 1, a filter element 2, an air inlet end plate 3 and an air outlet end plate 4 respectively disposed on both sides of the inner side wall of the square box 1, and adhesive-backed closed-cell sponge silicone rubber sealing gaskets 5 disposed at both ends of the filter element 2.

[0025] Reference Figure 4 The cross-section of the adhesive-backed closed-cell sponge silicone rubber gasket 5 is semi-circular. Compared with the traditional rectangular or square cross-section, the semi-circular cross-section of the adhesive-backed closed-cell sponge silicone rubber gasket 5 can provide a more uniform pressure distribution in different directions, ensuring the reliability of the seal.

[0026] Reference Figure 1 , Figure 2 and Figure 3 V-shaped ribs 6 are alternately arranged on the air inlet end plate 3 and the air outlet end plate 4. The V-shaped structure itself has high strength and stability. The arrangement of the V-shaped ribs 6 can effectively improve the structural strength of the air inlet end plate 3, the air outlet end plate 4 and the square box 1. Ventilation openings 7 are provided between two adjacent V-shaped ribs 6.

[0027] Reference Figure 1 , Figure 2 and Figure 3The filter element 2 is arranged in a V-shape between the V-shaped pressure plates 6 located on the air inlet end plate 3 and the air outlet end plate 4. When the filter element 2 needs to be installed between the V-shaped pressure plates 6, the adhesive-backed closed-cell sponge silicone rubber sealing gaskets 5 with adhesive backing at both ends of the filter element 2 are respectively pasted to the V-shaped pressure plates 6 to complete the installation of the filter element. At the same time, there are 10 filter elements 2, and they are arranged in a 5V shape during installation. Due to the good temperature resistance and oxidation resistance of closed-cell sponge silicone rubber, the adhesive-backed closed-cell sponge silicone rubber sealing gaskets 5 are ensured to maintain their elasticity and sealing performance in different temperature ranges. At the same time, in high-temperature environments, closed-cell sponge silicone rubber can maintain its performance stability for a long time and is not easy to age, thereby extending the overall service life of the device.

[0028] Reference Figure 3 Inside the square housing 1, protective mesh 8 is installed on the air outlet surface near the filter element 2. The filter element 2 itself may deform or even be damaged under excessive pressure, while the protective mesh 8 can disperse the pressure and reduce the pressure on the filter element, thereby improving the filter element's overpressure resistance. A preliminary filter 11 is installed in the vent 7 located in the air inlet end plate 3. The preliminary filter 11 is installed in the air inlet end plate 3 by bolt threads. Through the installation of the preliminary filter 11, large particles of dust and debris entering the airflow of the square housing 1 can be preliminarily filtered. A perforated plate 12 is installed in the vent 7 located in the air outlet end plate 4. The perforated plate 12 is installed in the air outlet end plate 4 by bolt threads. When the air is discharged from the vent 7 of the air outlet end plate, the airflow that may originally be concentrated is dispersed by the perforations on the surface of the perforated plate 12, improving the uniformity of the airflow discharge. At the same time, when the air passes through the vent 7 at high speed, it may generate a certain amount of noise. The perforated plate 12 can disperse the concentrated air into multiple small airflows, thereby reducing the intensity of airflow noise.

[0029] Reference Figure 2 and Figure 3 A groove 9 is provided on one side of the outer wall of the square box 1. A handle 10 is provided in the groove 9. The handle 10 is fixedly installed on the inner wall of the groove 9 by a torsion spring mechanism. With the handle 10, the staff can lift the square box 1 by the handle 10 and then quickly transfer the square box 1. The torsion spring mechanism can minimize the swinging of the handle 10 with the wind and the generation of abnormal noise in the case of uneven airflow.

[0030] The working principle of this utility model is as follows: First, the adhesive-backed closed-cell sponge silicone rubber sealing gaskets 5 with adhesive backing at both ends of the filter element 2 are respectively pasted onto the V-shaped pressure plate 6 to complete the installation of the filter element. At the same time, there are 10 filter elements 2, which are arranged in a 5V shape during installation.

[0031] After the filter element is installed, use bolts to thread the preliminary filter screen 11 onto the air inlet end plate 3, and at the same time thread the perforated plate 12 onto the air outlet end plate 4. Then, lift the square box 1 with the handle 10 and transport the device to the place where it is needed for installation.

[0032] After the square housing 1 is installed in the usage position, the airflow enters the square housing 1 through the air inlet end plate 3. During this process, the preliminary filter screen 11 first filters large dust and debris in the airflow. The air after preliminary filtration passes through the filter element 2 for secondary filtration. During this process, the filter element 2 itself may deform or even be damaged under excessive pressure. However, the protective net 8 can disperse the pressure and reduce the pressure on the filter element 2, thereby improving the overpressure resistance of the filter element 2. After the airflow is completely filtered, it is discharged through the vent 7 located on the air outlet end plate 4. At this time, the perforated plate 12 can disperse the airflow that may have been concentrated through the perforations on the surface of the perforated plate 12, improving the uniformity of the airflow discharge. At the same time, when the air passes through the vent 7 at high speed, it may generate some noise. The perforated plate 12 can disperse the concentrated air into multiple small airflows, thereby reducing the airflow noise intensity. Moreover, when the airflow passes through the holes, the friction and disturbance of the airflow by the edge of the holes will make the frequency distribution of the noise more uniform, reduce the generation of high-frequency noise, and make the sound softer.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A square nuclear-grade densely pleated high-efficiency filter, comprising a square housing (1), a filter element (2), an air inlet end plate (3) and an air outlet end plate (4) respectively disposed on both sides of the inner sidewall of the square housing (1), and adhesive-backed closed-cell sponge silicone rubber sealing gaskets (5) disposed at both ends of the filter element (2), characterized in that: V-shaped ribs (6) are alternately arranged on the air inlet end plate (3) and the air outlet end plate (4). Ventilation openings (7) are provided between two adjacent V-shaped ribs (6). The filter element (2) is arranged in a V-shape between the V-shaped ribs (6) on the air inlet end plate (3) and the air outlet end plate (4).

2. The square core-level densely pleated high-efficiency filter according to claim 1, characterized in that: The air outlet surface of the square box (1) near the filter element (2) is provided with a protective net (8).

3. A square core-level densely pleated high-efficiency filter according to claim 1, characterized in that: A groove (9) is provided on one side of the outer wall of the square box (1), and a handle (10) is provided in the groove (9).

4. A square core-level densely pleated high-efficiency filter according to claim 3, characterized in that: The handle (10) is fixedly installed on the inner wall of the groove (9) by a torsion spring mechanism.

5. A square core-level densely pleated high-efficiency filter according to claim 1, characterized in that: The cross-section of the adhesive-backed closed-cell sponge silicone rubber sealing gasket (5) is semi-circular.

6. A square core-level densely pleated high-efficiency filter according to claim 1, characterized in that: A preliminary filter screen (11) is provided in the vent (7) of the air inlet end plate (3), and a perforated plate (12) is provided in the vent (7) of the air outlet end plate (4).

Images