CN221121047U - Steam pipeline check valve - Google Patents
Steam pipeline check valve Download PDFInfo
- Publication number
- CN221121047U CN221121047U CN202323263086.0U CN202323263086U CN221121047U CN 221121047 U CN221121047 U CN 221121047U CN 202323263086 U CN202323263086 U CN 202323263086U CN 221121047 U CN221121047 U CN 221121047U
- Authority
- CN
- China
- Prior art keywords
- plate
- check valve
- pipe
- steam
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 210000001503 joint Anatomy 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The check valve for the steam pipeline comprises a flow pipeline, wherein an obliquely arranged abutting edge is arranged on the flow pipeline, a sealing plate is arranged on the abutting edge in an abutting manner, a connecting plate is arranged on the sealing plate, an externally connected rotating shaft is arranged on the connecting plate, and a counterweight is arranged on the externally connected rotating shaft; the sealing plate comprises a sealing ring which is arranged in sealing butt joint with the butt edge, a middle plate is arranged in the middle of the sealing ring, and an arc-shaped groove is formed in one side, facing the steam source, of the middle plate. According to the application, the sealing plate and the abutting edge matched with the sealing plate are arranged, then the structure of the sealing plate is adjusted through the connecting plate, the externally connected rotating shaft and the counterweight, and the middle plate arranged in the arc-shaped groove is additionally arranged, so that the pressure can be dispersed, and the problem of failure of the middle plate is avoided.
Description
Technical Field
The application relates to a check valve for a steam pipeline.
Background
The check valve is a valve with a circular valve clack as an opening and closing part and can stop the medium from flowing backwards by the action of the self weight and the medium pressure. The movement modes of the valve clack are divided into a lifting type and a swing type. The swing check valve has a valve flap that is inclined and rotatable about an axis to prevent backflow of fluid. The existing traditional swing check valve has the following problems: under the conditions of large flow and large pressure opening, the pressure is unevenly distributed on the whole disc, the disc is easy to bend or twist, the disc finally fails, and the check valve cannot naturally play a check function. This is in fact also because the check valve structure itself has a design defect, and the check effect in the steam pipe cannot be fully achieved.
Disclosure of utility model
In order to solve the above problems, the present application provides a check valve for steam pipes, comprising a flow pipe, wherein an obliquely arranged abutting edge is arranged on the flow pipe, a sealing plate is arranged on the abutting edge in an abutting manner, a connecting plate is arranged on the sealing plate, an externally connected rotating shaft is arranged on the connecting plate, and a counterweight is arranged on the externally connected rotating shaft; the sealing plate comprises a sealing ring which is arranged in sealing butt joint with the butt edge, a middle plate is arranged in the middle of the sealing ring, and an arc-shaped groove is formed in one side, facing the steam source, of the middle plate. According to the application, the sealing plate and the abutting edge matched with the sealing plate are arranged, then the structure of the sealing plate is adjusted through the connecting plate, the externally connected rotating shaft and the counterweight, and the middle plate arranged in the arc-shaped groove is additionally arranged, so that the pressure can be dispersed, and the problem of failure of the middle plate is avoided.
Preferably, a rotating pipe is arranged at the outer side of the flow pipeline, the externally connected rotating shaft is arranged in the rotating pipe, a rotating bearing is arranged at the top of the connecting plate, and the rotating bearing is arranged between the externally connected rotating shaft and the rotating pipe.
Preferably, an abutting positioning block is arranged on the externally connected rotating shaft, and the abutting positioning block is arranged beyond the rotating bearing.
Preferably, the abutting positioning block is fixedly arranged on the outer side of the rotating bearing.
Preferably, an overhaul pipe is arranged at the top of the flow pipeline, and an overhaul flange is arranged on the overhaul pipe.
Preferably, a protruding part is arranged at the lower part of the overhaul pipe, and a bottom groove is arranged in the direction of deviating from the steam source of the protruding part; and an externally connected rotating shaft is arranged at the side part of the overhaul pipe. The application reduces the complexity of the components by the method of the integrated setting of the overhaul and the check valve, and can make the overhaul and the replacement of accessories easier in the use process.
Preferably, a middle mounting rod is arranged on one side, far away from the arc-shaped groove, of the sealing plate, a fixing sleeve is sleeved on the middle mounting rod, and the fixing sleeve is fixedly connected with the connecting plate.
Preferably, the counterweight comprises an overhanging plate fixedly connected with the externally connected rotating shaft, a counterweight body is arranged on the overhanging plate, and a locking bolt for locking is arranged on the counterweight body. The application can adjust the size of the counterweight by adjusting the position of the counterweight body, thereby realizing the adjustment of the function of the check valve.
The application has the following beneficial effects:
1. According to the application, the sealing plate and the abutting edge matched with the sealing plate are arranged, then the structure of the sealing plate is adjusted through the connecting plate, the externally connected rotating shaft and the counterweight, and the middle plate arranged in the arc-shaped groove is additionally arranged, so that the pressure can be dispersed, and the problem of failure of the middle plate is avoided.
2. The application reduces the complexity of the components by the method of the integrated setting of the overhaul and the check valve, and can make the overhaul and the replacement of accessories easier in the use process.
3. The application can adjust the size of the counterweight by adjusting the position of the counterweight body, thereby realizing the adjustment of the function of the check valve.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of the internal structure of the present application;
FIG. 2 is a schematic diagram of an explosive structure according to the present application;
fig. 3 is a schematic view of the internal structure when opened.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present application will be described in detail below with reference to the following detailed description and the accompanying drawings.
In a first embodiment, as shown in fig. 1, a check valve for steam pipeline comprises a flow pipeline 1, wherein an obliquely arranged abutting edge 2 is arranged on the flow pipeline 1, a sealing plate 3 is arranged on the abutting edge 2 in an abutting manner, a connecting plate 4 is arranged on the sealing plate 3, an externally connected rotating shaft 5 is arranged on the connecting plate 4, and a counterweight 6 is arranged on the externally connected rotating shaft 5; the sealing plate 3 comprises a sealing ring 7 which is arranged in sealing abutting connection with the abutting edge 2, a middle plate 8 is arranged in the middle of the sealing ring 7, and an arc-shaped groove 9 is formed in one side, facing the steam source, of the middle plate 8.
During the use, steam is led in from arc recess 9 direction, then acts on arc recess 9, then overcomes the weight of closing plate 3, connecting plate 4 and counter weight 6, pushes up middle part board 8, then can carry out the steam circulation, when vapor pressure is less or when totally closed, then relies on the weight of its counter weight 6 for closing plate 3 and butt along 2 butt setting, has accomplished the structural seal.
In a second embodiment, as shown in fig. 1-3, a check valve for steam pipeline comprises a flow pipeline 1, wherein an obliquely arranged abutting edge 2 is arranged on the flow pipeline 1, a sealing plate 3 is arranged on the abutting edge 2 in an abutting manner, a connecting plate 4 is arranged on the sealing plate 3, an externally connected rotating shaft 5 is arranged on the connecting plate 4, and a counterweight 6 is arranged on the externally connected rotating shaft 5; the sealing plate 3 comprises a sealing ring 7 which is arranged in sealing abutting connection with the abutting edge 2, a middle plate 8 is arranged in the middle of the sealing ring 7, and an arc-shaped groove 9 is formed in one side, facing the steam source, of the middle plate 8. A rotary pipe 10 is arranged outside the flow pipeline 1, the externally connected rotary shaft 5 is arranged in the rotary pipe 10, a rotary bearing 11 is arranged at the top of the connecting plate 4, and the rotary bearing 11 is arranged between the externally connected rotary shaft 5 and the rotary pipe 10. An abutting positioning block 12 is arranged on the externally connected rotating shaft 5, and the abutting positioning block 12 is arranged beyond the rotating bearing 11. The abutment positioning block 12 is fixed to the outer side of the swivel bearing 11. The top of the flow pipe 1 is provided with an inspection pipe 13, and the inspection pipe 13 is provided with an inspection flange 14. A protruding part 15 is arranged at the lower part of the overhaul pipe 13, and a bottom groove 16 is arranged in the direction of the protruding part 15 away from the steam source; an externally connected rotary shaft 5 is arranged at the side part of the overhaul pipe 13. A middle mounting rod 17 is arranged on one side of the sealing plate 3 far away from the arc-shaped groove 9, a fixing sleeve 18 is sleeved on the middle mounting rod 17, and the fixing sleeve 18 is fixedly connected with the connecting plate 4. The counterweight 6 comprises an overhanging plate 19 fixedly connected with the externally connected rotating shaft 5, a counterweight body 20 is arranged on the overhanging plate 19, and a locking bolt for locking is arranged on the counterweight body 20.
When the sealing plate is used, steam is led in from the direction of the arc-shaped groove 9 and then acts on the arc-shaped groove 9, then the weight of the sealing plate 3, the connecting plate 4 and the counterweight 6 is overcome, the middle plate 8 is pushed up, steam circulation can be carried out, when the steam pressure is smaller or the sealing plate is completely closed, the sealing plate 3 is arranged in a way of being abutted with the abutting edge 2 by the weight of the counterweight, and structural sealing is completed. In addition, the application adopts the method of integrating the overhaul pipe and the overhaul flange 14, thereby reducing the complexity and facilitating the overhaul and the replacement of accessories; in the use, the size of the counterweight can be adjusted by adjusting the position of the counterweight body, so that the check force of the check valve can be adjusted.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.
Claims (10)
1. A steam conduit check valve, characterized by: the device comprises a flow pipeline, wherein an obliquely arranged abutting edge is arranged on the flow pipeline, a sealing plate is arranged on the abutting edge in an abutting manner, a connecting plate is arranged on the sealing plate, an outer connecting rotating shaft is arranged on the connecting plate, and a counterweight is arranged on the outer connecting rotating shaft; the sealing plate comprises a sealing ring which is arranged in sealing butt joint with the butt edge, a middle plate is arranged in the middle of the sealing ring, and an arc-shaped groove is formed in one side, facing the steam source, of the middle plate.
2. A steam pipe check valve according to claim 1, wherein: the outside at the runner pipeline sets up a swivelling pipe, the outer rotary shaft that links sets up is provided with swivel bearing in the swivelling pipe at the top of connecting plate, swivel bearing sets up between outer rotary shaft and swivelling pipe.
3. A steam pipe check valve according to claim 2, wherein: an abutting positioning block is arranged on the externally connected rotating shaft and exceeds the rotating bearing.
4. A steam line check valve according to claim 3, wherein: the abutting positioning block is fixedly arranged on the outer side of the rotary bearing.
5. A steam pipe check valve according to claim 1, wherein: the top of the circulation pipeline is provided with an overhaul pipe, and an overhaul flange is arranged on the overhaul pipe.
6. A steam line check valve as set forth in claim 5, wherein: the lower part of the overhaul pipe is provided with a protruding part, and the protruding part is provided with a bottom groove in the direction deviating from the steam source.
7. A steam line check valve as set forth in claim 6, wherein: and an externally connected rotating shaft is arranged at the side part of the overhaul pipe.
8. A steam pipe check valve according to claim 1, wherein: one side of the sealing plate far away from the arc-shaped groove is provided with a middle mounting rod, a fixed sleeve is sleeved on the middle mounting rod, and the fixed sleeve is fixedly connected with the connecting plate.
9. A steam pipe check valve according to claim 1, wherein: the counterweight comprises an overhanging plate fixedly connected with the externally connected rotating shaft, and a counterweight body is arranged on the overhanging plate.
10. A steam line check valve as set forth in claim 9 wherein: a locking bolt for locking is arranged on the counterweight body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323263086.0U CN221121047U (en) | 2023-11-30 | 2023-11-30 | Steam pipeline check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323263086.0U CN221121047U (en) | 2023-11-30 | 2023-11-30 | Steam pipeline check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221121047U true CN221121047U (en) | 2024-06-11 |
Family
ID=91374546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323263086.0U Active CN221121047U (en) | 2023-11-30 | 2023-11-30 | Steam pipeline check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221121047U (en) |
-
2023
- 2023-11-30 CN CN202323263086.0U patent/CN221121047U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204573211U (en) | Three eccentricity seals non-return butterfly valve firmly | |
| CN221121047U (en) | Steam pipeline check valve | |
| CN219796222U (en) | Elastic force adjusting structure of butt-clamping check valve | |
| CN209444830U (en) | A kind of pipe valve switch | |
| CN207554883U (en) | A kind of turnover plate type non-return valve | |
| CN213745082U (en) | Special anti-backflow desulfurization butterfly valve for power plant | |
| CN205260861U (en) | Machinery valve standard -sized sheet, complete shut -down position locking device | |
| CN212672486U (en) | Slow-closing check valve | |
| CN210440623U (en) | Multifunctional heavy hammer self-operated double-sealing swing check valve | |
| CN209164662U (en) | The inclined disc type non-return valve of high temperature and pressure | |
| CN207122607U (en) | A kind of eccentric hard sealed ball valve | |
| CN220134632U (en) | Marine pressurization type copper alloy butterfly valve plate | |
| CN219472755U (en) | Quick cut-off butterfly valve with good stability | |
| CN201535359U (en) | Energy-saving balance valve | |
| CN219975487U (en) | High-pressure cover plate check valve | |
| CN213176907U (en) | Rotary check valve | |
| CN218377841U (en) | Slow-closing backflow adjusting device for check valve | |
| CN214331586U (en) | Ultra-low temperature and ultra-high pressure metal sealing butterfly check valve | |
| CN217713772U (en) | Two-way check valve | |
| CN211975912U (en) | Hard sealing butterfly valve | |
| CN220623148U (en) | Check valve convenient to with pipeline quick connect | |
| CN219954321U (en) | Stainless steel swing check valve | |
| CN215635026U (en) | Anti-slip type opposite clamping butterfly valve | |
| CN219472805U (en) | Three-way check valve | |
| CN221221543U (en) | Throw-in check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |