Breakage-proof conical filter cartridge

Abstract

The utility model provides a breakage-proof conical filter cartridge which comprises a cartridge body, a connecting mechanism, a filter part, a first net body and a second net body, a connecting plate is arranged in the cartridge body, an air inlet is formed in the side wall of the cartridge body, the connecting mechanism is connected to the connecting plate, and the connecting mechanism is covered with the filter part; the first net body covers the outer side of the filtering piece; the second net body is arranged on the inner side of the filtering piece and located between the filtering piece and the connecting mechanism, when negative pressure is generated in the barrel body to filter dust, the second net body is used for limiting the filtering piece to contract towards the interior of the barrel body, and when high-pressure gas is injected into the barrel body to clean the filtering piece, the first net body is used for limiting the filtering piece to expand towards the barrel body. Therefore, the material strength and toughness of the filter material are maintained.

Description

Technical Field

[0001] The present application belongs to the technical field of filters, and more specifically, relates to an anti-breakage conical filter cartridge. Background Art

[0002] During the use of traditional conical filter cartridges, when continuing to filter dust, negative pressure needs to be generated inside the conical filter cartridge to allow the filter to filter the dust. At this time, the filter will shrink under the external pressure; and after cleaning the filter, high-pressure gas needs to be injected into the conical filter cartridge to impact the dust attached to the filter to improve the cleaning effect of the filter. At this time, the filter will expand under the internal pressure. In this way, after several times of tension and contraction, the material strength and toughness are likely to decrease, the opening range gradually increases, and finally the filter cartridge ruptures. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a damage-resistant conical filter cartridge to solve the technical problem in the prior art that the filter screen in the conical filter cartridge is prone to shrinkage and expansion during operation.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: to provide an anti-breakage conical filter cartridge, comprising:

[0005] A cylinder, wherein a connecting plate is provided in the cylinder, and an air inlet is provided on a side wall of the cylinder;

[0006] A connecting mechanism connected to the connecting plate;

[0007] A filter element, which is covered on the connecting mechanism;

[0008] A first mesh body, which is covered on the outside of the filter element;

[0009] A second mesh body is arranged inside the filter element and between the filter element and the connecting mechanism;

[0010] The first mesh body and the second mesh body are used to limit the movement of the filter element along the radial direction of the cylinder.

[0011] Optionally, the filter element is formed by a plurality of filter structures arranged in a ring;

[0012] The filter structure comprises a first filter portion and a second filter portion, wherein the first filter portion and the second filter portion are arranged at an angle;

[0013] In any one of the filtering structures, one end of the second filtering part away from the first filtering part is connected to the first filtering part adjacent thereto.

[0014] Optionally, the connecting mechanism comprises:

[0015] A connecting rod connected to the connecting plate;

[0016] A first fixing ring connected to one end of the connecting rod close to the connecting plate;

[0017] The second fixing ring is connected to an end of the connecting rod away from the connecting plate, and the diameter of the second fixing ring is smaller than the diameter of the first fixing ring.

[0018] Optionally, a first sealing ring is provided on the connecting plate, and a second sealing ring is provided on one end of the connecting rod away from the connecting plate;

[0019] The first fixing ring is installed in the first sealing ring, and the second fixing ring is installed in the second sealing ring.

[0020] Optionally, a first sealing ring is provided between the first fixing ring and the first sealing ring;

[0021] A second sealing ring is provided between the second fixing ring and the second sealing ring.

[0022] Optionally, the connecting mechanism further includes a support frame, which is connected to the connecting plate and is located between the connecting rod and the second net body.

[0023] Optionally, one end of the support frame away from the connecting plate is connected to the connecting rod.

[0024] The beneficial effect of the anti-breakage conical filter cartridge provided by the present application is that compared with the prior art, the anti-breakage conical filter cartridge provided by the present application includes a cylinder body, a connecting mechanism, a filter element, a first mesh body and a second mesh body, a connecting plate is provided in the cylinder body, and an air inlet is provided on the side wall of the cylinder body, the connecting mechanism is connected to the connecting plate, and the filter element cover is provided on the connecting mechanism; the first mesh body cover is provided on the outside of the filter element; the second mesh body is provided on the inside of the filter element and is located between the filter element and the connecting mechanism, when negative pressure is generated in the cylinder body to filter dust, the second mesh body is used to limit the filter element from shrinking into the cylinder body, and when high-pressure gas is injected into the cylinder body to clean the filter element, the first mesh body is used to limit the filter element from expanding toward the cylinder body, thereby maintaining the material strength and toughness of the filter material. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1A schematic diagram of the structure of the anti-breakage conical filter cartridge provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of the filter element provided in an embodiment of the present application.

[0028] Among them, the reference numerals in the figure are:

[0029] 1. Cylinder; 2. Filter element; 201. First filter section; 202. Second filter section; 3. First mesh body; 4. Second mesh body; 5. Connecting plate; 6. Air inlet; 7. Air outlet; 8. Connecting rod; 9. First fixing ring; 10. Second fixing ring; 11. First sealing ring; 12. Second sealing ring; 13. First sealing ring; 14. Second sealing ring; 15. Support frame. Implementation

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0031] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Please also read Figure 1 and Figure 2 , the anti-breakage conical filter cartridge provided in the embodiment of the present application is now described.

[0035] A damage-resistant conical filter cartridge comprises a cartridge body 1, a connecting mechanism, a filter element 2, a first mesh body 3 and a second mesh body 4.

[0036] A connecting plate 5 is provided inside the cylinder 1, and an air inlet 6 is provided on the side wall of the cylinder 1, and an exhaust port 7 is provided on the connecting plate 5. The connecting mechanism is connected to the connecting plate 5. The filter element 2 is covered by the connecting mechanism, and the first net body 3 is covered on the outside of the filter element 2. The second net body 4 is provided on the inside of the filter element 2 and is located between the filter element 2 and the connecting mechanism; the first net body 3 and the second net body 4 are used to limit the movement of the filter element 2 along the radial direction of the cylinder 1.

[0037] When filtering dust, a fan is connected to the exhaust port 7 to generate negative pressure in the cylinder 1, and dust enters the cylinder 1 from the air inlet 6, and the dust is filtered by the filter element 2. When cleaning the filter element 2, high-pressure gas is injected into the filter element 2 through the exhaust port 7 to clear the dust attached to the outer wall of the filter element 2.

[0038] Compared with the prior art, the anti-breakage conical filter cartridge provided by the present application includes a cylinder 1, a connecting mechanism, a filter element 2, a first mesh body 3 and a second mesh body 4. A connecting plate 5 is provided in the cylinder 1, and an air inlet 6 is provided on the side wall of the cylinder 1. The connecting mechanism is connected to the connecting plate 5, and the filter element 2 is covered by the connecting mechanism; the first mesh body 3 is covered on the outside of the filter element 2; the second mesh body 4 is arranged on the inside of the filter element 2 and is located between the filter element 2 and the connecting mechanism. When negative pressure is generated in the cylinder 1 to filter dust, the second mesh body 4 is used to limit the filter element 2 from shrinking toward the inside of the cylinder 1. When high-pressure gas is injected into the cylinder 1 to clean the filter element 2, the first mesh body 3 is used to limit the filter element 2 from expanding toward the cylinder 1, thereby maintaining the material strength and toughness of the filter material.

[0039] In the present application, the filter element 2 is formed by a plurality of filter structures arranged in a ring. The filter structure includes a first filter portion 201 and a second filter portion 202, and the first filter portion 201 and the second filter portion 202 are arranged at an angle to increase the filter area of ​​the filter element 2. In any filter structure, one end of the second filter portion 202 away from the first filter portion 201 is connected to the first filter portion 201 adjacent thereto.

[0040] In the present application, the connection mechanism includes a connection rod 8 , a first fixing ring 9 , and a second fixing ring 10 .

[0041] The connecting rod 8 is connected to the connecting plate 5, the first fixing ring 9 is connected to one end of the connecting rod 8 close to the connecting plate 5, and the second fixing ring 10 is connected to one end of the connecting rod 8 away from the connecting plate 5. In the vertical direction, the upper end of the filter element 2 is sleeved on the first fixing ring 9, and the lower end of the filter element 2 is sleeved on the second fixing ring 10, and the diameter of the upper end of the filter element 2 is larger than the diameter of the lower end of the filter element 2, so that the filter bag is set in a conical shape, so that the dust filtered on the filter bag can fall off the filter bag when cleaning. In order to adapt to the filter element 2, the diameter of the second fixing ring 10 is smaller than the diameter of the first fixing ring 9.

[0042] In the present application, a first sealing ring 11 is provided on the connecting plate 5, and a second sealing ring 12 is provided at one end of the connecting rod 8 away from the connecting plate 5; the first fixing ring 9 is installed in the first sealing ring 11, and the second fixing ring 10 is installed in the second sealing ring 12. A first sealing ring 13 is provided between the first fixing ring 9 and the first sealing ring 11. A second sealing ring 14 is provided between the second fixing ring 10 and the second sealing ring 12.

[0043] In the present application, the connection mechanism further comprises a support frame 15, which is connected to the connection plate 5 and is located between the connection rod 8 and the second net body 4. One end of the support frame away from the connection plate 5 is connected to the connection rod 8.

[0044] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A damage-resistant conical filter cartridge, characterized in that: include: A cylinder, wherein a connecting plate is provided in the cylinder, and an air inlet is provided on a side wall of the cylinder; A connecting mechanism connected to the connecting plate; A filter element, which is covered on the connecting mechanism; A first mesh body, which is covered on the outside of the filter element; A second mesh body is arranged inside the filter element and between the filter element and the connecting mechanism; The first mesh body and the second mesh body are used to limit the movement of the filter element along the radial direction of the cylinder.

2. The anti-breakage conical filter cartridge according to claim 1, characterized in that: The filter element is formed by a plurality of filter structures arranged in a ring; The filter structure comprises a first filter portion and a second filter portion, wherein the first filter portion and the second filter portion are arranged at an angle; In any one of the filtering structures, one end of the second filtering part away from the first filtering part is connected to the first filtering part adjacent thereto.

3. The anti-breakage conical filter cartridge according to claim 2, characterized in that: The connecting mechanism comprises: A connecting rod connected to the connecting plate; A first fixing ring connected to one end of the connecting rod close to the connecting plate; The second fixing ring is connected to an end of the connecting rod away from the connecting plate, and the diameter of the second fixing ring is smaller than the diameter of the first fixing ring.

4. The anti-breakage conical filter cartridge according to claim 3, characterized in that: The connecting plate is provided with a first sealing ring, and the end of the connecting rod away from the connecting plate is provided with a second sealing ring; The first fixing ring is installed in the first sealing ring, and the second fixing ring is installed in the second sealing ring.

5. The anti-breakage conical filter cartridge according to claim 4, characterized in that: A first sealing ring is provided between the first fixing ring and the first sealing ring; A second sealing ring is provided between the second fixing ring and the second sealing ring.

6. The anti-breakage conical filter cartridge according to claim 5, characterized in that: The connecting mechanism also includes a supporting frame, which is connected to the connecting plate and is located between the connecting rod and the second net body.

7. The anti-breakage conical filter cartridge according to claim 6, characterized in that: One end of the support frame away from the connecting plate is connected to the connecting rod.

Images