Dry gas seal dustproof device for kettle

Abstract

The utility model discloses a dry gas seal dustproof device for a kettle, which comprises a rotating shaft, a dry gas seal assembly is arranged on the rotating shaft, the dry gas seal assembly comprises a moving ring and a static ring, a bearing with bearing covers on two surfaces is arranged on the moving ring, a seal shell is arranged on the static ring, and a sealing cover is arranged on the seal shell. A filter screen is arranged between the sealing shell and the bearing with the bearing covers on the two faces, a shaft sleeve is arranged on the movable ring, and a brush is arranged on the shaft sleeve. According to the dry gas sealing dustproof device for the kettle, the sealing face of the dry gas sealing assembly is sealed through the sealing shell and the bearing with the bearing covers on the two faces, air is filtered through the filter screen, dust in the air is prevented from entering the sealing face, the brush rotates along with the movable ring, and the dust is prevented from entering the sealing face. And dust on the filter plate net is swept away, so that air can enter the filter plate net normally, a good sealing effect is kept, and the service life of the dry gas sealing assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of dustproof devices, in particular to a dry gas sealing dustproof device for a kettle. Background Art

[0002] Dry gas seals for kettles are typically installed on the top of the kettle to seal the gaseous medium within. Dry gas seals are non-contact seals, with a small gap between the rotating and stationary rings. Dry gas seals require clean, dry gas as the seal gas. When dry gas seals operate in dusty environments for extended periods, excessive dust accumulation can block the sealing gas passage between the rotating and stationary rings, causing the seal to fail. Utility Model Content

[0003] In response to the above-mentioned deficiencies in the prior art, the utility model provides a dry gas sealing dust-proof device for a kettle, which aims to solve the problem that when the dry gas seal works for a long time in an environment containing a large amount of dust, excessive dust accumulation will block the sealing gas channel between the rotating ring and the stationary ring, causing mechanical seal failure.

[0004] In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is:

[0005] A dry gas sealing and dustproof device for a kettle comprises a rotating shaft, a dry gas sealing assembly is provided on the rotating shaft, the dry gas sealing assembly comprises a dynamic ring and a static ring, the dynamic ring is provided with a bearing with bearing covers on both sides, the tight static ring is provided with a sealing shell, a filter is provided between the sealing shell and the bearing with bearing covers on both sides, the dynamic ring is provided with a shaft sleeve, and the shaft sleeve is provided with a brush.

[0006] Furthermore, the filter screen is fixedly connected to the sealing shell.

[0007] Furthermore, the filter screen is sealed with the outer ring of the bearing with bearing covers on both sides.

[0008] Furthermore, the brush is arranged to conflict with the filter.

[0009] Furthermore, the shaft sleeve is arranged to abut against the inner ring of the bearing with bearing covers on both sides.

[0010] Furthermore, the sealing shell is provided with a plurality of evenly distributed first mounting holes, the first mounting holes are internally threadedly connected with first jackscrews, and the sealing shell and the static ring are fixed by the first jackscrews.

[0011] Furthermore, a first sealing ring is provided between the sealing shell and the static ring.

[0012] Furthermore, the shaft sleeve is provided with a plurality of evenly distributed second mounting holes, the second mounting holes are internally threadedly connected with second top screws, and the shaft sleeve and the dynamic ring are fixed by the second top screws.

[0013] Furthermore, a second sealing ring is provided between the shaft sleeve and the dynamic ring.

[0014] The beneficial effects of the utility model are:

[0015] The utility model discloses a dry gas sealing dustproof device for a kettle. The sealing surface of the dry gas sealing component is sealed by a sealing shell and bearings with bearing covers on both sides. The air is filtered by a filter screen to prevent dust in the air from entering the sealing surface. The dust on the filter plate screen is swept away by a brush as the dynamic ring rotates, so that the air can be normally taken in, a good sealing effect is maintained, and the service life of the dry gas sealing component is prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the utility model;

[0019] Figure 4 For the utility model Figure 3 A in the middle is an enlarged structural diagram;

[0020] Figure 5 For the utility model Figure 3 Enlarged structural diagram at point B in the middle.

[0021] Reference table of accompanying symbols:

[0022] 1. Rotating shaft; 2. Dry gas seal assembly; 3. Dynamic ring; 4. Static ring; 5. Bearing with bearing covers on both sides; 6. Sealing shell; 7. Filter screen; 8. Bushing; 9. Brush; 10. First mounting hole; 11. First jackscrew; 12. First sealing ring; 13. Second mounting hole; 14. Second jackscrew; 15. Second sealing ring. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0024] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0026] like Figures 1 to 5 As shown, a dry gas sealing and dust-proof device for a kettle includes a rotating shaft 1, on which a dry gas sealing assembly 2 is provided. The dry gas sealing assembly 2 includes a dynamic ring 3 and a static ring 4. The dry gas sealing mechanism is prior art and will not be described in detail here.

[0027] The moving ring 3 is provided with bearings 5 with bearing covers on both sides, and the bearings 5 with bearing covers on both sides are fixedly installed on the moving ring 3.

[0028] A sealing shell 6 is provided on the tight static ring 4, a first sealing ring 12 is provided between the sealing shell 6 and the static ring 4, a plurality of evenly distributed first mounting holes 10 are provided on the sealing shell 6, and a first top screw 11 is connected to the inner thread of the first mounting hole 10, and the sealing shell 6 and the static ring 4 are fixed by the first top screw 11.

[0029] A filter screen 7 is arranged between the sealing shell 6 and the bearing 5 with bearing covers on both sides. The filter screen 7 is fixedly connected to the sealing shell 6. The filter screen 7 is sealed with the outer ring of the bearing 5 with bearing covers on both sides. The sealing surface of the dry gas sealing assembly is sealed through the sealing shell 6 and the bearing 5 with bearing covers on both sides.

[0030] When the dry gas sealing assembly 2 is in operation, air is filtered through the filter screen 7 and enters the sealing surface of the dynamic ring 3 and the static ring 4, preventing dust from entering the sealing surface.

[0031] A shaft sleeve 8 is provided on the dynamic ring 3, and a second sealing ring 15 is provided between the shaft sleeve 8 and the dynamic ring 3. A plurality of evenly distributed second mounting holes 13 are provided on the shaft sleeve 8. The second mounting holes 13 are internally threaded with second top screws 14. The shaft sleeve 8 and the dynamic ring 3 are fixed by the second top screws 14. The shaft sleeve 8 is arranged to contact the inner ring of the bearing 5 with bearing covers on both sides. A brush 9 is provided on the shaft sleeve 8, and the brush 9 is arranged to contact the filter screen 7.

[0032] When the dynamic ring 3 rotates, it drives the shaft sleeve 8 and the brush 9 to rotate. The brush 9 sweeps away the dust accumulated on the filter screen 7, allowing it to take in air normally, maintaining a good sealing effect, and improving the service life of the dry gas sealing assembly 2.

[0033] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the scope of protection of the present utility model patent.

Claims

1. A dry gas sealing dustproof device for a kettle, comprising a rotating shaft (1), a dry gas sealing assembly (2) provided on the rotating shaft (1), the dry gas sealing assembly (2) comprising a dynamic ring (3) and a static ring (4), characterized in that: The movable ring (3) is provided with a bearing (5) with bearing covers on both sides, the stationary ring (4) is provided with a sealing shell (6), a filter (7) is provided between the sealing shell (6) and the bearing (5) with bearing covers on both sides, the movable ring (3) is provided with a shaft sleeve (8), and the shaft sleeve (8) is provided with a brush (9).

2. The dry gas sealing and dust-proof device for a kettle according to claim 1, characterized in that: The filter screen (7) is fixedly connected to the sealing shell (6).

3. The dry gas sealing and dust-proof device for a kettle according to claim 1, characterized in that: The filter screen (7) is sealed with the outer ring of the bearing (5) with bearing covers on both sides.

4. The dry gas sealing and dust-proof device for a kettle according to claim 1, characterized in that: The brush (9) is arranged in conflict with the filter screen (7).

5. The dry gas sealing and dust-proof device for a kettle according to claim 1, characterized in that: The shaft sleeve (8) is arranged to abut against the inner ring of the bearing (5) with bearing covers on both sides.

6. The dry gas sealing and dust-proof device for a kettle according to claim 1, characterized in that: The sealing shell (6) is provided with a plurality of evenly distributed first mounting holes (10), the first mounting holes (10) are internally threadedly connected with first top screws (11), and the sealing shell (6) and the stationary ring (4) are fixed via the first top screws (11).

7. The dry gas sealing and dust-proof device for a kettle according to claim 6, characterized in that: A first sealing ring (12) is provided between the sealing shell (6) and the stationary ring (4).

8. The dry gas sealing and dust-proof device for a kettle according to claim 1, characterized in that: The shaft sleeve (8) is provided with a plurality of evenly distributed second mounting holes (13), the second mounting holes (13) are internally threadedly connected with second top screws (14), and the shaft sleeve (8) and the movable ring (3) are fixed via the second top screws (14).

9. The dry gas sealing and dust-proof device for a kettle according to claim 8, characterized in that: A second sealing ring (15) is provided between the shaft sleeve (8) and the dynamic ring (3).

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