CN220891108U - Bellows seal control valve - Google Patents
Bellows seal control valve Download PDFInfo
- Publication number
- CN220891108U CN220891108U CN202322396879.3U CN202322396879U CN220891108U CN 220891108 U CN220891108 U CN 220891108U CN 202322396879 U CN202322396879 U CN 202322396879U CN 220891108 U CN220891108 U CN 220891108U
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- Prior art keywords
- valve
- corrugated pipe
- opening
- valve body
- valve core
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- 230000000903 blocking effect Effects 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to the technical field of sealing valves and discloses a corrugated pipe sealing control valve which comprises a valve body, wherein the valve body is cylindrical, mounting flanges are arranged at two ends of the valve body, a mounting pipe is vertically communicated with one side position of the middle position of the circumferential side wall of the valve body, one end of the mounting pipe, which is far away from the valve body, is provided with a valve cover through flange connection, a through hole is formed in the center position between the inner wall and the outer wall of one end of the valve cover, which is far away from the mounting pipe, a valve rod is connected through threads on the inner wall of the through hole, a blocking plate is arranged below the mounting pipe between the inner walls of the valve body, an opening structure for fluid circulation is arranged on the blocking plate, and a sealing structure for sealing the opening structure is arranged on the valve rod. According to the utility model, through the two sets of opening structures and sealing structures of the valve core I matched with the circulation port I and the valve core II matched with the circulation port II, the sealing performance is prevented from being influenced by damage of one sealing structure, and the sealing effect and the guarantee of the valve body are improved.
Description
Technical Field
The utility model belongs to the technical field of sealing valves, and particularly relates to a corrugated pipe sealing control valve.
Background
A valve using a bellows as a valve stem sealing element. It is often used in applications where the valve stem seal is critical, such as in high vacuum applications and in the nuclear industry; the bellows is used to replace stuffing box on common valve or to use it together, so that the valve rod has no leakage to prevent radioactive matter or valuable matter from leaking out or to maintain high vacuum.
The existing bellows sealing control valve is generally only provided with a single-layer sealing valve core structure, the valve core can be deformed in the use process to directly influence the sealing effect, quick remedy cannot be achieved, the bellows structure is also generally single-layer, the overall stability is limited, and when the bellows is damaged, leakage of substances in the valve is easy to occur, and the fault tolerance is low.
The present utility model has been made in view of this.
Disclosure of utility model
In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:
The corrugated pipe sealing control valve comprises a valve body, wherein the valve body is cylindrical and tubular, mounting flanges are arranged at two ends of the valve body, a mounting pipe is vertically communicated with one side position of the middle position of the circumferential side wall of the valve body, one end of the mounting pipe, far away from the valve body, is provided with a valve cover through flange connection, a through hole is arranged at the central position between the inner wall and the outer wall of one end of the valve cover, far away from the mounting pipe, of the valve cover, a valve rod is connected through the inner wall of the through hole in a threaded manner, a blocking plate is arranged below the mounting pipe between the inner wall of the valve body, an opening structure for fluid circulation is arranged on the blocking plate, and a sealing structure for sealing the opening structure is arranged on the valve rod;
The opening structure comprises a first opening and a second opening, the sealing structure comprises a first blocking structure and a second blocking structure, and a first protection component and a second protection component for protecting the first blocking structure and the second blocking structure are further arranged on the sealing structure;
The first opening is a first circulation opening, the first circulation opening is arranged between the top and the bottom of the blocking plate and is positioned below the valve rod, the bottom of the blocking plate is positioned outside the circumference of the first circulation opening and is downwards concavely provided with a blocking box, the second opening is a second circulation opening, and the second circulation opening is arranged at the central position between the inner wall and the outer wall of the bottom of the blocking box;
The first blocking structure is a valve core I, the valve core I is fixedly connected to one end of the bottom of the valve rod, the second blocking structure is a valve core II, the valve core II is arranged below the valve core, the valve core I is matched with the first circulating port, and the valve core II is matched with the second circulating port;
the first protection component comprises a first corrugated pipe and a second corrugated pipe, the first corrugated pipe and the second corrugated pipe are concentrically arranged on the outer side of the circumference of the valve rod and positioned between the inner wall of the top of the installation pipe and the first valve core, and the wave crest and the wave trough of the sections of the first corrugated pipe and the second corrugated pipe are mutually symmetrical;
The second protective component comprises a third corrugated pipe and a fourth corrugated pipe, the third corrugated pipe and the fourth corrugated pipe are concentrically arranged between the first valve core and the second valve core, and the wave crest and the wave trough of the sections of the third corrugated pipe and the fourth corrugated pipe are mutually symmetrical.
As a preferable implementation mode of the utility model, an adjusting hand wheel is fixedly arranged outside the circumference of one end of the top of the valve rod and positioned outside the valve cover.
Compared with the prior art, the utility model has the following beneficial effects:
1. Through two sets of opening structures and sealing structures that the first valve core is matched with the first circulation port and the second valve core is matched with the second circulation port, the damage of one sealing structure is prevented, the tightness is influenced, and the sealing effect and the guarantee of the valve body are improved.
2. Through the bellows structure that sets up, not only prevented the risk that the material leaked through the connection gap in the valve, and played sealed guard action to connection structure etc. between valve rod and the case one, avoided the material to cause damage such as corruption to the valve rod upper structure in the valve to improved control valve whole life, and double-deck bellows structure has further improved control valve stability.
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Drawings
In the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
fig. 3 is an enlarged view of fig. 2a in accordance with the present utility model.
In the figure: 1. a valve body; 2. installing a pipe; 3. a valve cover; 4. a valve stem; 5. an adjusting hand wheel; 6. a blocking plate; 7. a first circulation port; 8. a blocking box; 9. a second circulation port; 10. a valve core I; 11. a valve core II; 12. a first corrugated pipe; 13. a second corrugated pipe; 14. a bellows III; 15. and a corrugated pipe IV.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model.
1-2, A bellows seal control valve, as shown in figure 1-2, including the valve body 1, the valve body 1 is cylindrical tubular, both ends of the valve body 1 are provided with the mounting flange, the vertical intercommunication of one side position of the circumference sidewall intermediate position of the valve body 1 has mounting tube 2, one end of the mounting tube 2 far away from the valve body 1 is installed the valve gap 3 through the flanged joint, the central position department between the inner and outer wall of one end of the valve gap 3 far away from the mounting tube 2 has a through hole, there is valve stem 4 to pass through the inner wall threaded connection of the through hole, lie in the mounting tube 2 below between the inner wall of the valve body 1 and block the board 6, there are opening structures used for fluid circulation on the board 6, and there are seal structures used for sealing the opening structures on the valve stem 4;
as shown in fig. 2, the opening structure includes a first opening and a second opening, the sealing structure includes a first blocking structure and a second blocking structure, and the sealing structure is further provided with a first protection component and a second protection component for protecting the first blocking structure and the second blocking structure.
As shown in fig. 3, the first opening is a first circulation port 7, the first circulation port 7 is disposed between the top and the bottom of the blocking plate 6 and located below the valve rod 4, the bottom of the blocking plate 6 is located at the outer side of the circumference of the first circulation port 7 and is concavely provided with a blocking box 8, the second opening is a second circulation port 9, and the second circulation port 9 is disposed at a central position between the inner wall and the outer wall of the bottom of the blocking box 8.
As shown in fig. 3, the first blocking structure is a first valve core 10, the first valve core 10 is fixedly connected to one end of the bottom of the valve rod 4, the second blocking structure is a second valve core 11, the second valve core 11 is arranged below the first valve core 10, the first valve core 10 is matched with the first circulating port 7, and the second valve core 11 is matched with the second circulating port 9.
As shown in fig. 2, an adjusting hand wheel 5 is fixedly arranged outside the valve cover 3 at the circumference outside one end of the top of the valve rod 4.
The valve body 1 has the advantages that two groups of opening structures and sealing structures are arranged, namely, the valve core I10 is matched with the circulation port I7, and the valve core II 11 is matched with the circulation port II 9, so that the sealing performance is prevented from being influenced due to the fact that one sealing structure is damaged, and the sealing effect and the guarantee performance of the valve body 1 are improved.
As shown in fig. 3, the first protection component comprises a first corrugated pipe 12 and a second corrugated pipe 13, the first corrugated pipe 12 and the second corrugated pipe 13 are concentrically arranged outside the circumference of the valve rod 4 and positioned between the inner wall of the top of the installation pipe 2 and the first valve core 10, and the wave crest and the wave trough positions of the sections of the first corrugated pipe 12 and the second corrugated pipe 13 are symmetrical to each other.
As shown in fig. 3, the second protection component includes a third bellows 14 and a fourth bellows 15, the third bellows 14 and the fourth bellows 15 are concentrically disposed between the first valve core 10 and the second valve core 11, and the peak and trough positions of the cross sections of the third bellows 14 and the fourth bellows 15 are symmetrical to each other.
The valve has the advantages that through the corrugated pipe structure, the risk that substances in the valve leak through the connecting gap is prevented, the connecting structure between the valve rod 4 and the first valve core 10 and the like are sealed and protected, the damages of the substances in the valve to the corrosion and the like of the upper structure of the valve rod 4 are avoided, the overall service life of the control valve is prolonged, and the stability of the control valve is further improved through the double-layer corrugated pipe structure.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (2)
1. The utility model provides a bellows seal control valve, includes valve body (1), valve body (1) are cylindrical tubulose, its characterized in that, valve body (1) both ends all are provided with mounting flange, and one side position department of valve body (1) circumference lateral wall intermediate position communicates perpendicularly has mounting tube (2), valve gap (3) are installed through flange joint to mounting tube (2) one end of keeping away from valve body (1), and valve gap (3) keep away from central point department between the inside and outside wall of mounting tube (2) one end and are provided with the through-hole, pass through-hole inner wall threaded connection and have valve rod (4), be provided with between valve body (1) inner wall and be located mounting tube (2) below and block board (6), be provided with the opening structure that is used for the fluid circulation on blocking board (6), and be provided with the seal structure who is used for sealing the opening structure on valve rod (4);
The opening structure comprises a first opening and a second opening, the sealing structure comprises a first blocking structure and a second blocking structure, and a first protection component and a second protection component for protecting the first blocking structure and the second blocking structure are further arranged on the sealing structure;
The first opening is a first circulation opening (7), the first circulation opening (7) is arranged between the top and the bottom of the blocking plate (6) and is positioned below the valve rod (4), the bottom of the blocking plate (6) is positioned at the outer side of the circumference of the first circulation opening (7) and is downwards concavely provided with a blocking box (8), the second opening is a second circulation opening (9), and the second circulation opening (9) is arranged at the central position between the inner wall and the outer wall of the bottom of the blocking box (8);
the first blocking structure is a valve core I (10), the valve core I (10) is fixedly connected to one end of the bottom of the valve rod (4), the second blocking structure is a valve core II (11), the valve core II (11) is arranged below the valve core I (10), the valve core I (10) is matched with the circulation port I (7), and the valve core II (11) is matched with the circulation port II (9);
The first protection component comprises a first corrugated pipe (12) and a second corrugated pipe (13), the first corrugated pipe (12) and the second corrugated pipe (13) are concentrically arranged on the outer side of the circumference of the valve rod (4) and positioned between the inner wall of the top of the mounting pipe (2) and the first valve core (10), and the wave crest and the wave trough positions of the sections of the first corrugated pipe (12) and the second corrugated pipe (13) are symmetrical;
the second protective component comprises a third corrugated pipe (14) and a fourth corrugated pipe (15), the third corrugated pipe (14) and the fourth corrugated pipe (15) are concentrically arranged between the first valve core (10) and the second valve core (11), and the wave crest and the wave trough of the sections of the third corrugated pipe (14) and the fourth corrugated pipe (15) are mutually symmetrical.
2. The bellows seal control valve according to claim 1, wherein an adjusting hand wheel (5) is fixedly arranged outside the valve cover (3) at the outer side of the circumference of one end of the top of the valve rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322396879.3U CN220891108U (en) | 2023-09-04 | 2023-09-04 | Bellows seal control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322396879.3U CN220891108U (en) | 2023-09-04 | 2023-09-04 | Bellows seal control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220891108U true CN220891108U (en) | 2024-05-03 |
Family
ID=90870677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322396879.3U Active CN220891108U (en) | 2023-09-04 | 2023-09-04 | Bellows seal control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220891108U (en) |
-
2023
- 2023-09-04 CN CN202322396879.3U patent/CN220891108U/en active Active
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