High-speed rotary stop valve

Abstract

The utility model relates to the technical field of stop valves, in particular to a high-speed rotary stop valve, which comprises a main valve body, a valve core, a hand wheel, a packing gland, a valve cover, a valve rod, a secondary valve body, a bearing, a bearing positioning ring, a bearing gland and a rotary connecting pipe, an inner cavity is formed in the inner side of the main valve body, an inlet communicated with the inner cavity in the lower portion of the main valve body is formed in the left portion of the main valve body, an outlet communicated with the inner cavity in the lower portion of the main valve body is formed in the right portion of the main valve body, and a channel communicated with an inner cavity in the upper portion of the main valve body is formed in the upper portion of the main valve body. A packing gland is arranged on the upper side of the valve cover; the device is simple in structure, high-speed rotation of the outlet of the stop valve is achieved by arranging the rotating connecting pipe, the bearing and the like, a static outlet of a traditional valve is optimized into a rotatable outlet, then the effect of introducing a needed medium into high-speed rotating equipment is achieved, adaptability is good, and safe conveying of the medium is guaranteed through sealing connection.

Description

Technical Field

[0001] The utility model relates to the technical field of stop valves, in particular to a high-speed rotary stop valve. Background Art

[0002] The drying equipment in the nickel-cobalt metal metallurgical field mainly includes fluidized bed type, rotary kiln type, paddle type, flash type and other forms. Among them, rotary kiln and paddle type drying equipment are widely used in the production of nickel chloride powder, nickelous oxide powder and cobalt tetroxide powder. The operating principle of the above equipment is to pass the high-temperature heat transfer medium into the equipment body, jacket or paddle stirring to exchange heat with the material, and then dry it. However, when the high-temperature heat transfer medium enters and exits the rotary kiln cylinder, paddle stirring and other equipment, traditional stop valves cannot be used because the static pipeline cannot rotate at high speed with the equipment body and the stirring shaft. In order to meet the different application conditions of heat transfer medium transportation in drying equipment, it is worth promoting and applying the stop valve that can achieve high-speed rotation and safe and reliable transportation. Utility Model Content

[0003] The utility model provides a high-speed rotary stop valve, which overcomes the shortcomings of the above-mentioned prior art and can effectively solve the problem that the traditional stop valve cannot realize high-speed rotation and cannot be used in rotary kilns, blade drying and other rotating equipment.

[0004] In order to solve the above problems, the utility model discloses a high-speed rotary stop valve, comprising a main valve body, a valve core, a hand wheel, a packing gland, a valve cover, a valve stem, a secondary valve body, a bearing, a bearing positioning ring, a bearing gland, and a rotary connecting pipe; the main valve body has an inner cavity, the left part of the main valve body is provided with an inlet connected to the inner cavity of the lower part of the main valve body, the right part of the main valve body is provided with an outlet connected to the inner cavity of the lower part of the main valve body, the upper part of the main valve body is provided with a channel connected to the upper inner cavity of the main valve body, the upper side of the main valve body corresponding to the position above the channel is sealed with a valve cover, the upper side of the valve cover is provided with a packing gland, the upper side of the packing gland is provided with a valve stem, the top of the valve stem is provided with a hand wheel, the bottom end of the valve stem passes through the packing gland, the valve cover and the main valve body channel from top to bottom in sequence and is located in the main valve body channel, and the valve stem is sealed and connected to the inner side of the upper part of the valve cover, the valve stem is screwed to the inner side of the lower part of the valve cover, the bottom end of the valve stem is fixedly connected to the valve core, and the bottom of the channel of the main valve body is provided with a first inner ring platform matching the bottom of the valve core;

[0005] A secondary valve body is provided on the outlet side of the main valve body, a second inner ring platform is provided inside the secondary valve body, two bearings are spaced apart on the left and right sides of the right side of the second inner ring platform, a bearing locating ring that abuts against the two bearings is provided on the inside of the secondary valve body between the two bearings, and a bearing pressure cover that abuts against the bearing located on the right side is provided on the right side of the secondary valve body; a swivel pipe is provided on the inner side of the bearing, the inlet end of the swivel pipe is extended to be sealed and connected with the outlet end of the main valve body, and the outlet end of the swivel pipe is extended to the right side of the bearing pressure cover.

[0006] The inlet side of the main valve body is fixedly connected with an inlet flange, and the outlet end of the swivel connecting pipe is fixedly connected with a swivel outlet flange.

[0007] A packing is arranged between the inner side of the upper part of the valve cover below the packing gland and the valve stem.

[0008] Sealing rings are provided at the connection between the main valve body and the valve cover, and at the connection between the main valve body and the rotary connecting pipe.

[0009] The packing gland and the valve cover, and the valve cover and the main valve body are connected together through threads; or / and, the valve stem and the hand wheel are connected together through a valve stem nut.

[0010] The main valve body and the secondary valve body, as well as the secondary valve body and the bearing gland are connected together by bolts.

[0011] The device of the present application has a simple structure. By setting a rotating pipe, bearings, etc., high-speed rotation of the stop valve outlet is achieved, and the static outlet of the traditional valve is optimized into a rotatable outlet, thereby achieving the effect of introducing the required medium (high-temperature air, steam, thermal oil, etc.) into the high-speed rotating equipment. It has good adaptability and is connected through sealing to ensure safe transportation of the medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0013] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.

[0014] In the figure: 1-inlet flange; 2-main valve body; 3-valve core; 4-rotating outlet flange; 5-packing; 6-handwheel; 7-valve stem nut; 8-packing gland; 9-valve cover; 10-valve stem; 11-sealing ring; 12-secondary valve body; 13-bearing; 14-bearing locating ring; 15-bearing gland; 16-rotating pipe. DETAILED DESCRIPTION

[0015] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0016] like Figure 1As shown, a high-speed rotary stop valve includes a main valve body 2, a valve core 3, a hand wheel 6, a packing gland 8, a valve cover 9, a valve stem 10, a secondary valve body 12, a bearing 13, a bearing positioning ring 14, a bearing gland 15, and a rotary pipe 16; the main valve body 2 has an inner cavity inside, the main valve body 2 is provided with an inlet connected to the lower inner cavity of the main valve body 2 on the left, the main valve body 2 is provided with an outlet connected to the lower inner cavity of the main valve body 2 on the right, the main valve body 2 is provided with a channel connected to the upper inner cavity of the main valve body 2 on the upper part, and the main valve body corresponding to the position above the channel 2 is sealed with a valve cover 9 on the upper side, a packing gland 8 is provided on the upper side of the valve cover 9, a valve stem 10 is provided above the packing gland 8, a hand wheel 6 is provided at the top of the valve stem 10, the bottom end of the valve stem 10 passes through the packing gland 8, the valve cover 9 and the main valve body 2 channel from top to bottom in sequence and is located in the main valve body 2 channel, and the valve stem 10 is sealed and connected with the inner side of the upper part of the valve cover 9, the valve stem 10 is screwed together with the inner side of the lower part of the valve cover 9, the bottom end of the valve stem 10 is fixedly connected with the valve core 3, and the bottom of the channel of the main valve body 2 is provided with a first inner ring platform matching the bottom of the valve core 3;

[0017] A secondary valve body 12 is provided on the outlet side of the main valve body 2, and a second inner ring platform is provided on the inner side of the secondary valve body 12. Two bearings 13 are spaced apart on the left and right sides of the right side of the second inner ring platform. A bearing positioning ring 14 that abuts against the two bearings 13 is provided on the inner side of the secondary valve body 12 between the two bearings 13, and a bearing pressure cover 15 that abuts against the bearing 13 located on the right side is provided on the right side of the secondary valve body 12; a swivel pipe 16 is provided on the inner side of the bearing 13, and the inlet end of the swivel pipe 16 extends to be sealed and connected with the outlet end of the main valve body 2, and the outlet end of the swivel pipe 16 extends to the right side of the bearing pressure cover 15.

[0018] During operation, the inlet of the main valve body 2 is connected to the external medium delivery pipeline, and the outlet of the rotary connecting pipe 16 is connected to the end face of the external rotary kiln cylinder. High-temperature air enters the main valve body 2 from the medium delivery pipeline through the inlet of the main valve body 2. At this time, the hand wheel 6 is rotated to drive the valve stem 10 to move upward, and then drive the valve core 3 to move upward. At this time, the valve core 3 is separated from the main valve body 2, and the inner cavity channel of the main valve body 2 is opened, and the high-temperature air enters the secondary valve body 12. Then, the high-temperature air enters the rotary kiln through the rotary connecting pipe 16 outlet that follows the rotary kiln cylinder to rotate at a high speed, and dries the material.

[0019] In summary, the device of the present application has a simple structure. By setting a rotating pipe 16, a bearing 13, etc., high-speed rotation of the stop valve outlet is achieved, and the static outlet of the traditional valve is optimized into a rotatable outlet, thereby achieving the effect of introducing the required medium (high-temperature air, steam, thermal oil, etc.) into the high-speed rotating equipment. It has good adaptability and is connected through a sealed connection to ensure safe transportation of the medium.

[0020] like Figure 1As shown, the inlet side of the main valve body 2 is fixedly connected with the inlet flange 1, and the outlet end of the swivel pipe 16 is fixedly connected with the swivel outlet flange 4. Thus, the main valve body 2 and the swivel pipe 16 are easily connected to external devices.

[0021] like Figure 1 As shown, a packing 5 is arranged between the inner side of the upper part of the valve cover 9 below the packing gland 8 and the valve stem 10. In this way, the packing 5 seals the valve stem 10, and the sealing effect is good, ensuring the safe transportation of the medium without leakage.

[0022] like Figure 1 As shown, the connection between the main valve body 2 and the valve cover 9, and the connection between the main valve body 2 and the rotary connection pipe 16 are both provided with sealing rings 11. In this way, it is easier to seal, and the sealing effect is good, ensuring safe medium transportation without leakage.

[0023] like Figure 1 As shown, the packing gland 8 and the valve cover 9, and the valve cover 9 and the main valve body 2 are all connected together by threads, thereby facilitating installation.

[0024] like Figure 1 As shown, the valve stem 10 and the hand wheel 6 are connected together through the valve stem 10 nut 7. It is convenient for installation and disassembly.

[0025] like Figure 1 As shown, the main valve body 2 and the secondary valve body 12, and the secondary valve body 12 and the bearing gland 15 are connected together by bolts. This makes installation and disassembly easy.

Claims

1. A high-speed rotary stop valve, characterized in that: The throttle body comprises a main valve body, a valve core, a hand wheel, a packing gland, a valve cover, a valve stem, a secondary valve body, a bearing, a bearing positioning ring, a bearing gland and a rotating connecting pipe; the main valve body has an inner cavity inside, the left part of the main valve body is provided with an inlet connected with the inner cavity of the lower part of the main valve body, the right part of the main valve body is provided with an outlet connected with the inner cavity of the lower part of the main valve body, the upper part of the main valve body is provided with a channel connected with the inner cavity of the upper part of the main valve body, the upper part of the main valve body is provided with a valve cover sealed on the upper side of the main valve body corresponding to the position above the channel, the upper side of the valve cover is provided with a packing gland, the upper side of the valve cover is provided with a valve stem, the top of the valve stem is provided with a hand wheel, the bottom end of the valve stem passes through the packing gland, the valve cover and the main valve body channel from top to bottom in sequence and is located in the main valve body channel, and the valve stem is sealedly connected with the inner side of the upper part of the valve cover, the valve stem is screwed with the inner side of the lower part of the valve cover, the bottom end of the valve stem is fixedly connected with the valve core, and the bottom of the channel of the main valve body is provided with a first inner ring platform matching the bottom of the valve core; A secondary valve body is provided on the outlet side of the main valve body, a second inner ring platform is provided inside the secondary valve body, two bearings are spaced apart on the left and right sides of the right side of the second inner ring platform, a bearing locating ring that abuts against the two bearings is provided on the inside of the secondary valve body between the two bearings, and a bearing pressure cover that abuts against the bearing located on the right side is provided on the right side of the secondary valve body; a swivel pipe is provided on the inner side of the bearing, the inlet end of the swivel pipe is extended to be sealed and connected with the outlet end of the main valve body, and the outlet end of the swivel pipe is extended to the right side of the bearing pressure cover.

2. A high-speed rotary stop valve according to claim 1, characterized in that: The inlet side of the main valve body is fixedly connected with an inlet flange, and the outlet end of the swivel connecting pipe is fixedly connected with a swivel outlet flange.

3. A high-speed rotary stop valve according to claim 1 or 2, characterized in that: A packing is arranged between the inner side of the upper part of the valve cover below the packing gland and the valve stem.

4. A high-speed rotary stop valve according to claim 1 or 2, characterized in that: Sealing rings are provided at the connection between the main valve body and the valve cover, and at the connection between the main valve body and the rotating connecting pipe.

5. A high-speed rotary stop valve according to claim 3, characterized in that: Sealing rings are provided at the connection between the main valve body and the valve cover, and at the connection between the main valve body and the rotating connecting pipe.

6. A high-speed rotary stop valve according to claim 1, 2 or 5, characterized in that: The packing gland and the valve cover, and the valve cover and the main valve body are connected together through threads; or / and, the valve stem and the hand wheel are connected together through a valve stem nut.

7. A high-speed rotary stop valve according to claim 3, characterized in that: The packing gland and the valve cover, and the valve cover and the main valve body are connected together through threads; or / and, the valve stem and the hand wheel are connected together through a valve stem nut.

8. A high-speed rotary stop valve according to claim 4, characterized in that: The packing gland and the valve cover, and the valve cover and the main valve body are connected together through threads; or / and, the valve stem and the hand wheel are connected together through a valve stem nut.

9. A high-speed rotary stop valve according to claim 1 or 2 or 5 or 7 or 8, characterized in that: The main valve body and the secondary valve body, as well as the secondary valve body and the bearing gland are connected together by bolts.

10. A high-speed rotary stop valve according to claim 6, characterized in that: The main valve body and the secondary valve body, as well as the secondary valve body and the bearing gland are connected together by bolts.

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