High-temperature-resistant hard sealing butterfly valve

Abstract

The utility model relates to the technical field of hard sealing butterfly valves, and discloses a high-temperature-resistant hard sealing butterfly valve which comprises a valve body, the lower surface of the valve body is fixedly connected with a fixing seat, the interior of the fixing seat is rotatably connected with a rotating roller, the outer wall of the rotating roller is rotatably connected to the inner wall of the fixing seat, an open groove is formed in the rotating roller in a penetrating mode, and the open groove is communicated with the inner wall of the fixing seat. The inner wall of the open groove is slidably connected with a butterfly plate, a movable cavity is formed in the butterfly plate, the inner wall of the movable cavity is fixedly connected with a spring, and one end of the spring is fixedly connected with a movable plate. According to the butterfly valve, firstly, the inner hexagonal screw is rotated to be separated from the interior of the sliding block, at the moment, the sliding block is taken out of the inner wall of the sliding groove, then the butterfly plate is pulled, the spring is pushed to contract through the limiting column, and therefore the effect that the butterfly plate is convenient to mount and dismount is achieved, and then the buckle is pulled to be separated from the outer wall of the clamping block; therefore, the effect of conveniently replacing the sealing sleeve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hard-sealed butterfly valves, in particular to a high-temperature resistant hard-sealed butterfly valve. Background Art

[0002] A hard-sealed butterfly valve is a valve with good sealing performance, which plays a role in controlling fluid in pipelines; its sealing structure is made of metal materials, such as stainless steel, cast steel, etc., which form a metal-to-metal sealing pair when in contact with the sealing surface, thereby achieving better air tightness and sealing; if the medium temperature is too high, general rubber or plastic sealing materials will be affected and lose their sealing performance, so a metal sealing structure is required. Therefore, it is necessary to select a high-temperature resistant hard-sealed butterfly valve to ensure its normal operation and long-term stable operation.

[0003] During the use of traditional hard-sealed butterfly valves, some hard-sealed butterfly valves may have a relatively fixed structure, so after long-term use, the butterfly valve and the sealing ring may be corroded by the conveyed medium. Due to the relatively fixed structure, it may be inconvenient to disassemble and replace. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a high temperature resistant hard seal butterfly valve, aiming to improve the problem that some hard seal butterfly valves may be inconvenient to disassemble and replace due to their relatively fixed structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-temperature resistant hard-sealed butterfly valve, including a valve body, the lower surface of the valve body is fixedly connected to a fixed seat, the fixed seat is rotatably connected to a rotating roller, the outer wall of the rotating roller is rotatably connected to the inner wall of the fixed seat, the interior of the rotating roller is provided with a groove, the inner wall of the groove is slidably connected to a butterfly plate, the interior of the butterfly plate is provided with a movable cavity, the inner wall of the movable cavity is fixedly connected to a spring, one end of the spring is fixedly connected to a movable plate, the outer wall of the movable plate is slidably connected to the inner wall of the movable cavity, the upper surface of the movable plate is fixedly connected to a limiting column, and the upper surface of the limiting column is in contact with the inner wall of the groove.

[0006] As a further description of the above technical solution:

[0007] A fixing block is fixedly connected to one side of the outer wall of the butterfly plate, and an inner thread of the fixing block is connected to a hexagon socket screw.

[0008] As a further description of the above technical solution:

[0009] A slide groove is provided inside the butterfly plate, and a sliding block is slidably connected to the inner wall of the slide groove.

[0010] As a further description of the above technical solution:

[0011] A threaded hole is provided inside the sliding block, and the inner wall of the threaded hole is threadedly connected to the outer wall of the hexagon socket screw.

[0012] As a further description of the above technical solution:

[0013] A first sealing sleeve is arranged on one side of the outer wall of the butterfly plate, and buckles are fixedly connected to the outer side walls of the first sealing sleeve.

[0014] As a further description of the above technical solution:

[0015] A second sealing sleeve is arranged on the other side of the outer wall of the butterfly plate, and a clamping block is fixedly connected to the outer side wall of the second sealing sleeve, and the outer wall of the clamping block is engaged with the buckle.

[0016] As a further description of the above technical solution:

[0017] The outer side walls of the valve body are fixedly connected with flanges, and one side of the inner wall of the flange is fixedly connected with a stabilizing block.

[0018] As a further description of the above technical solution:

[0019] A fixing bolt is arranged inside the stabilizing block, a clamping block is arranged on the outer wall of the fixing bolt, and a plurality of anti-slip strips are fixedly connected to one side of the inner wall of the clamping block.

[0020] As a further description of the above technical solution:

[0021] A stabilizing seat is fixedly connected to the upper surface of the valve body, and a fixing column is fixedly connected to the upper surface of the stabilizing seat.

[0022] As a further description of the above technical solution:

[0023] A braking mechanism is fixedly connected to the upper surface of the fixing column, and a hand wheel is arranged on one side of the outer wall of the braking mechanism.

[0024] As a further description of the above technical solution:

[0025] The valve body and butterfly plate are made of chromium-molybdenum steel.

[0026] The utility model has the following beneficial effects:

[0027] 1. In the utility model, firstly, the hexagon socket screw is turned to disengage the slider, and then the slider is taken out from the inner wall of the slide groove, and then the butterfly plate is pulled, and the spring is pushed to contract through the limit column, thereby achieving the effect of facilitating the installation and removal of the butterfly plate, and then the buckle is pulled to separate the buckle from the outer wall of the block, thereby achieving the effect of facilitating the replacement of the sealing sleeve.

[0028] 2. In the utility model, the clamping block is fitted on one side of the outer wall of the pipe to be connected, so that the anti-slip strip is fitted on one side of the outer wall of the pipe, thereby increasing the friction between the clamping block and the pipe. At this time, the fixing bolts are passed through the stabilizing block and the clamping block, thereby further increasing the air tightness between the pipe and the hard-sealed butterfly valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the front three-dimensional structure of a high-temperature resistant hard-sealed butterfly valve proposed by the utility model;

[0030] Figure 2 This is a rear-view stereoscopic structural diagram of a high-temperature resistant hard-sealed butterfly valve proposed by the utility model;

[0031] Figure 3 This is a schematic diagram of the disassembly of the sealing sleeve structure of a high-temperature resistant hard-sealed butterfly valve proposed by the utility model;

[0032] Figure 4 This is a schematic diagram of the disassembly of the butterfly plate structure of a high temperature resistant hard seal butterfly valve proposed by the utility model;

[0033] Figure 5 The utility model provides a schematic cross-sectional view of a butterfly plate structure of a high-temperature resistant hard-sealed butterfly valve.

[0034] Legend:

[0035] 1. Valve body; 2. Fixed seat; 3. Rotating roller; 4. Slot; 5. Butterfly plate; 6. Movable cavity; 7. Spring; 8. Movable plate; 9. Limit column; 10. Fixed block; 11. Hexagon socket screw; 12. Slide groove; 13. Sliding block; 14. Threaded hole; 15. First sealing sleeve; 16. Buckle; 17. Second sealing sleeve; 18. Block; 19. Flange; 20. Stabilizing block; 21. Fixing bolt; 22. Clamping block; 23. Anti-slip strip; 24. Stabilizing seat; 25. Fixed column; 26. Braking mechanism; 27. Handwheel. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Reference Figure 1-5The utility model provides an embodiment: a high-temperature resistant hard-sealed butterfly valve, including a valve body 1, a fixed seat 2 is fixedly connected to the lower surface of the valve body 1, and the above design achieves the effect of preventing the rotating roller 3 from being displaced, the fixed seat 2 is rotatably connected to the rotating roller 3 inside, the outer wall of the rotating roller 3 is rotatably connected to the inner wall of the fixed seat 2, and a slot 4 is provided inside the rotating roller 3, and the above design achieves the effect of convenient installation of the butterfly plate 5, the inner wall of the slot 4 is slidably connected to the butterfly plate 5, and an active cavity 6 is provided inside the butterfly plate 5, the inner wall of the active cavity 6 is fixedly connected to a spring 7, one end of the spring 7 is fixedly connected to a movable plate 8, the outer wall of the movable plate 8 is slidably connected to the inner wall of the active cavity 6, the upper surface of the movable plate 8 is fixedly connected to a limiting column 9, and the upper surface of the limiting column 9 fits the inner wall of the slot 4, and the above design achieves the effect of convenient installation and removal of the butterfly plate 5.

[0038] A fixing block 10 is fixedly connected to one side of the outer wall of the butterfly plate 5 , and a hexagon socket screw 11 is connected to the internal thread of the fixing block 10 . The above design achieves the effect of fixing the sliding block 13 .

[0039] A slide groove 12 is provided inside the butterfly plate 5 , and a slider 13 is slidably connected to the inner wall of the slide groove 12 . The above design achieves the effect of fixing the butterfly plate 5 .

[0040] A threaded hole 14 is provided inside the slider 13 , and the inner wall of the threaded hole 14 is threadedly connected to the outer wall of the hexagon socket screw 11 . The above design facilitates fixing the slider 13 .

[0041] A first sealing sleeve 15 is disposed on one side of the outer wall of the butterfly plate 5 , and a buckle 16 is fixedly connected to the outer side wall of the first sealing sleeve 15 . The above design facilitates the engagement of the clamping block 18 .

[0042] A second sealing sleeve 17 is provided on the other side of the outer wall of the butterfly plate 5. The outer side wall of the second sealing sleeve 17 is fixedly connected with a clamping block 18. The outer wall of the clamping block 18 is engaged with the buckle 16. The above design achieves the effect of fixing the first sealing sleeve 15 and the second sealing sleeve 17.

[0043] The outer side wall of the valve body 1 is fixedly connected with a flange 19 , and the inner side wall of the flange 19 is fixedly connected with a stabilizing block 20 . The above design achieves the effect of stabilizing the fixing bolts 21 .

[0044] A fixing bolt 21 is arranged inside the stabilizing block 20, a clamping block 22 is arranged on the outer wall of the fixing bolt 21, and a plurality of anti-slip strips 23 are fixedly connected to one side of the inner wall of the clamping block 22. The above design can increase the air tightness between the pipeline and the flange 19.

[0045] The upper surface of the valve body 1 is fixedly connected with a stabilizing seat 24 , and the upper surface of the stabilizing seat 24 is fixedly connected with a fixing column 25 . The above design achieves the effect of fixing the braking mechanism 26 .

[0046] A brake mechanism 26 is fixedly connected to the upper surface of the fixed column 25 , and a hand wheel 27 is provided on one side of the outer wall of the brake mechanism 26 . The above design can achieve the effect of driving the rotating roller 3 to rotate.

[0047] The valve body 1 and the butterfly plate 5 are both made of chromium-molybdenum steel. The above design achieves the effect of high temperature resistance and high pressure resistance.

[0048] Working principle: When a high temperature resistant hard seal butterfly valve is needed, firstly, the valve body 1 is placed between the pipes to be connected, and then the flange 19 is used to connect and fix the pipes, and then the clamping block 22 is fitted to one side of the outer wall of the pipe, and the friction between the pipe and the clamping block 22 is increased by the anti-slip strip 23, and then the fixing bolt 21 is connected through the inside of the stabilizing block 20 and the clamping block 22, and then the fixing bolt 21 is rotated to further enhance the sealing between the pipe and the valve. When the valve is used for a long time, the butterfly plate 5 is rubbed against the inner wall of the valve for a long time. The butterfly plate 5 is easy to be damaged by rubbing. At this time, the buckle 16 is pulled to make the buckle 16 disengage from the surface of the block 18. At this time, the first sealing sleeve 15 and the second sealing sleeve 17 are removed, so as to achieve the effect of facilitating the installation and removal of the sealing ring. Long-term use may also damage the butterfly plate 5. When the first sealing sleeve 15 and the second sealing sleeve 17 are removed, the slider 13 is disengaged from the hexagonal screw 11 by rotating the hexagonal screw 11, and the slider 13 is slid out of the inner wall of the slide groove 12, and the butterfly plate 5 is pulled at the same time. At this time, the limit column 9 will push the spring 7 to contract, thereby achieving the effect of facilitating the removal of the butterfly plate 5.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant hard seal butterfly valve, comprising a valve body (1), characterized in that: The lower surface of the valve body (1) is fixedly connected to a fixed seat (2), the interior of the fixed seat (2) is rotatably connected to a rotating roller (3), the outer wall of the rotating roller (3) is rotatably connected to the inner wall of the fixed seat (2), the interior of the rotating roller (3) is provided with a slot (4) extending therethrough, the inner wall of the slot (4) is slidably connected to a butterfly plate (5), the interior of the butterfly plate (5) is provided with a movable cavity (6), the inner wall of the movable cavity (6) is fixedly connected to a spring (7), one end of the spring (7) is fixedly connected to a movable plate (8), the outer wall of the movable plate (8) is slidably connected to the inner wall of the movable cavity (6), the upper surface of the movable plate (8) is fixedly connected to a limiting column (9), the upper surface of the limiting column (9) is in contact with the inner wall of the slot (4).

2. A high temperature resistant hard seal butterfly valve according to claim 1, characterized in that: A fixing block (10) is fixedly connected to one side of the outer wall of the butterfly plate (5), and a hexagon socket screw (11) is connected to the internal thread of the fixing block (10).

3. A high temperature resistant hard seal butterfly valve according to claim 1, characterized in that: A sliding groove (12) is provided inside the butterfly plate (5), and a sliding block (13) is slidably connected to the inner wall of the sliding groove (12).

4. A high temperature resistant hard seal butterfly valve according to claim 3, characterized in that: A threaded hole (14) is provided inside the sliding block (13), and the inner wall of the threaded hole (14) is threadedly connected to the outer wall of the hexagon socket screw (11).

5. The high temperature resistant hard seal butterfly valve according to claim 1, characterized in that: A first sealing sleeve (15) is provided on one side of the outer wall of the butterfly plate (5), and a buckle (16) is fixedly connected to the outer side wall of the first sealing sleeve (15).

6. A high temperature resistant hard seal butterfly valve according to claim 1, characterized in that: A second sealing sleeve (17) is provided on the other side of the outer wall of the butterfly plate (5), and a clamping block (18) is fixedly connected to the outer wall of the second sealing sleeve (17), and the outer wall of the clamping block (18) is engaged with the buckle (16).

7. The high temperature resistant hard seal butterfly valve according to claim 1, characterized in that: The outer side walls of the valve body (1) are fixedly connected to flanges (19), and one side of the inner wall of the flange (19) is fixedly connected to a stabilizing block (20).

8. A high temperature resistant hard seal butterfly valve according to claim 7, characterized in that: A fixing bolt (21) is arranged inside the stabilizing block (20), a clamping block (22) is arranged on the outer wall of the fixing bolt (21), and a plurality of anti-slip strips (23) are fixedly connected to one side of the inner wall of the clamping block (22).

9. The high temperature resistant hard seal butterfly valve according to claim 1, characterized in that: The upper surface of the valve body (1) is fixedly connected to a stabilizing seat (24), and the upper surface of the stabilizing seat (24) is fixedly connected to a fixing column (25).

10. A high temperature resistant hard seal butterfly valve according to claim 9, characterized in that: A braking mechanism (26) is fixedly connected to the upper surface of the fixed column (25), and a hand wheel (27) is provided on one side of the outer wall of the braking mechanism (26).

11. The high temperature resistant hard seal butterfly valve according to claim 1, characterized in that: The valve body (1) and the butterfly plate (5) are both made of chromium-molybdenum steel.

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