CN220956979U - Net weight type double-adjusting ring safety valve - Google Patents
Net weight type double-adjusting ring safety valve Download PDFInfo
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- CN220956979U CN220956979U CN202322993478.6U CN202322993478U CN220956979U CN 220956979 U CN220956979 U CN 220956979U CN 202322993478 U CN202322993478 U CN 202322993478U CN 220956979 U CN220956979 U CN 220956979U
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- valve clack
- guide sleeve
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- 238000007789 sealing Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000008676 import Effects 0.000 claims 2
- 230000009977 dual effect Effects 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a dead weight type double-adjusting ring safety valve, which solves the problems that an external adjusting weight is greatly influenced by the outside, fine adjustment is troublesome and the like. The valve comprises a valve body, a valve seat and a valve clack, wherein an inlet sleeve is arranged on the valve body, the valve seat is fixed at the top end of the inlet sleeve, the valve clack is of a cylindrical structure with a closed bottom, the bottom of the valve clack is in sealing fit with the valve seat, a counterweight cavity with an open top is arranged in the valve clack, and a plurality of counterweight blocks are arranged in the counterweight cavity; the valve body is internally and fixedly provided with a guide sleeve, and the valve clack is arranged in the guide sleeve in a lifting and moving manner. The shape of the valve clack is improved, so that the valve clack can be used for assembling the weight block, setting the setting pressure and adjusting the size through the gravity of the weight block, and the valve clack is guided by the guide sleeve so as to ensure the stable lifting of the valve clack; so, the structure of whole regulation balancing weight is located the valve body, avoids external influence to the counter weight structure, realizes the normal operating of relief valve.
Description
Technical Field
The utility model relates to the field of safety valves, in particular to a net weight type double-adjusting-ring safety valve.
Background
The safety valve is a special valve which is in a normally closed state under the action of external force and prevents the medium pressure in the pipeline or the equipment from exceeding a specified value by discharging the medium to the outside of the system when the medium pressure in the equipment or the pipeline rises to exceed the specified value. The problem with the use of springs and system pressure balancing is that the springs can accurately display the working pressure of the system only in the elastic deformation range, and the spring coefficient of the springs changes due to aging of the springs or the system pressure fluctuation causes the springs to exceed the elastic deformation range.
In order to solve the above problems, some manufacturers produce a dead weight type safety valve, for example, a dead weight type safety valve (CN 212616550U) in chinese patent, wherein the upper end of the cylinder on the back of the valve clack passes through the guide hole to the upper side of the upper end face of the valve cover, the outer circular surface of the cylinder on the back of the valve clack is movably matched with the guide hole, a disc-shaped weight is fixedly installed on the upper end face of the cylinder on the back of the valve clack, and a pressure setting value is set by installing the weight on the valve clack. However, the external disc-shaped weight is greatly influenced by the outside, and is easy to be touched by mistake or influenced by the abnormal pressure applied by the outside so as to influence the normal operation of the safety valve. In addition, the weight of the required disc-shaped weight is usually already pre-adjusted before the safety valve is mounted on the pipeline, and no operation of fine adjustment is performed, which obviously causes inconvenience in operation by replacing the weight of the whole disc-shaped weight, and the adjustment operation is troublesome.
Disclosure of Invention
The purpose of the utility model is that: in order to overcome the defects of the prior art, the utility model provides a net-weight type double-adjusting-ring safety valve, which solves the problems that an external adjusting weight is greatly influenced by the outside, fine adjustment is troublesome and the like.
The technical scheme of the utility model is as follows: the valve comprises a valve body, a valve seat and a valve clack, wherein an inlet sleeve is arranged on the valve body, the valve seat is fixed at the top end of the inlet sleeve, the valve clack is of a cylindrical structure with a closed bottom, the bottom of the valve clack is in sealing fit with the valve seat, a counterweight cavity with an open top is arranged in the valve clack, and a plurality of counterweight blocks are arranged in the counterweight cavity; the valve body is internally and fixedly provided with a guide sleeve, and the valve clack is arranged in the guide sleeve in a lifting and moving manner.
By adopting the technical scheme, the shape of the valve clack is improved, so that the valve clack can be used for assembling the weight block, the setting pressure is set, the size is regulated by the gravity of the weight block, and the valve clack is guided by the guide sleeve, so that the valve clack is ensured to stably lift; so, the structure of whole regulation balancing weight is located the valve body, avoids external influence to the counter weight structure, realizes the normal operating of relief valve.
In one possible design, an upper adjusting ring is arranged on the outer peripheral wall of the guide sleeve, the upper adjusting ring is connected with the guide sleeve in an adjustable manner through a threaded screwing manner, an upper adjusting bolt is arranged on the valve body, the upper adjusting bolt is arranged on the outer wall of the valve body through a threaded screwing manner, and the upper adjusting bolt penetrates through the valve body and is abutted with the outer wall of the upper adjusting ring; and a first opening with adjustable size is formed between the bottom of the upper adjusting ring and the valve seat.
By adopting the design, the upper adjusting ring can adjust the first opening degree in a threaded screwing mode, the upper adjusting ring rises to enlarge the first opening degree so as to be beneficial to quick discharge of media, the resistance of the valve clack in seat returning is reduced, the upper adjusting ring falls to reduce the first opening degree so as to enlarge the recoil force and facilitate the valve clack to be opened, and therefore, the adjustment of the performance parameters such as set pressure and the like is realized, and the operation is convenient.
In one possible design, a lower adjusting ring is arranged on the outer peripheral wall of the inlet sleeve, the lower adjusting ring is in adjustable connection with the inlet sleeve in a threaded screwing mode, a lower adjusting bolt is arranged on the valve body, the lower adjusting bolt is arranged on the outer wall of the valve body in a threaded screwing mode, and the lower adjusting bolt penetrates through the valve body and is in butt joint with the outer wall of the lower adjusting ring; the top of the lower adjusting ring can be propped in the valve clack or form a second opening degree for adjusting the size with the valve clack.
By adopting the design, the size of the second opening can be adjusted by the lower adjusting ring in a threaded connection mode, the second opening can be enlarged by the lower adjusting ring descending and enlarging the first opening, the seat returning resistance can be reduced, and the opening height can be reduced by lifting the lower adjusting ring.
In one possible design, the top of the guide sleeve includes an inwardly extending stop portion that can abut against the top surface of the valve flap to form a stop.
By adopting the design, the limit part can limit the lifting travel of the valve clack, avoid excessive lifting of the valve clack and improve the safety.
In one possible design, the peripheral wall of the flap and the inner wall of the guide sleeve are in contact with each other and the two slide relatively.
By adopting the design, the guide sleeve guides the lifting of the valve clack, so that the valve clack lifting process is ensured to be stable and effective.
In one possible design, the top of the valve body is provided with a mounting opening, and the mounting opening is covered and provided with a valve cover.
By adopting the design, the valve cover is detached to maintain the internal parts of the valve body, and the weight of the balancing weight can be properly increased or decreased.
In one possible design, the balancing weight is of sheet-like construction and the dimension of the balancing weight is adapted to the horizontal cross section of the balancing weight cavity.
By adopting the design, the pressure applied by the valve clack is more balanced, and the swing of the safety valve in the opening and closing process is avoided.
Drawings
FIG. 1 is a schematic view of a valve of the present utility model in a closed configuration;
FIG. 2 is a schematic view of the valve of the present utility model in an open state;
FIG. 3 is a schematic view of the upward movement of the adjusting ring of the present utility model;
Wherein, 1, the valve body; 2. a valve seat; 3. a valve flap; 4. an inlet sleeve; 31. a weight cavity; 32. balancing weight; 5. a guide sleeve; 6. an upper adjusting ring; 61. an upper adjusting bolt; 7. the adjusting ring is downwards adjusted; 71. a lower adjusting bolt; 51. a limit part; 8. a valve cover.
Detailed Description
The net weight type double-adjusting ring safety valve as shown in fig. 1-3 comprises a valve body 1, a valve seat 2 and a valve clack 3, wherein the valve body 1 is provided with an inlet sleeve 4 for medium to enter, and the valve seat 2 is fixed at the top end of the inlet sleeve 4. The valve clack 3 is of a cylindrical structure with a closed bottom, the bottom of the valve clack 3 is in sealing fit with the valve seat 2, a counterweight cavity 31 with an opening at the top is arranged in the valve clack 3, and a plurality of counterweight blocks 32 are arranged in the counterweight cavity 31; a guide sleeve 5 is fixedly arranged in the valve body 1, and the valve clack 3 is arranged in the guide sleeve 5 in a lifting and moving manner. The required setting pressure of relief valve is preset, place balancing weight 32 in counter weight chamber 31, utilize the weight of balancing weight 32 to adjust setting pressure size, realize setting for setting pressure value simultaneously, through the guide of uide bushing 5, can ensure the stationarity that valve clack 3 goes up and down. The structure of the adjusting balancing weight 32 is built in the valve body 1, so that the influence of the outside on the adjusting balancing weight is avoided, and the normal operation of the safety valve is ensured.
An upper adjusting ring 6 is arranged on the peripheral wall of the guide sleeve 5, and the upper adjusting ring 6 is connected with the guide sleeve 5 in an adjustable manner in a threaded screwing mode, so that the upper adjusting ring 6 can move up and down. The valve body 1 is provided with an upper adjusting bolt 61, the upper adjusting bolt 61 is also arranged on the outer wall of the valve body 1 in a threaded screwing mode, and the upper adjusting bolt 61 penetrates through the valve body 1 to be abutted with the outer wall of the upper adjusting ring 6, so that the position of the upper adjusting ring 6 can be adjusted more accurately. And form the first aperture of adjustable size between the bottom of last adjusting ring 6 and disk seat 2 for last adjusting ring 6 can be outside at uide bushing 5 back remove, thereby can adjust the size of aperture according to actual demand. When the first opening degree is enlarged by the ascending of the upper adjusting ring 6, the rapid discharge of the medium is facilitated, the resistance of the valve clack 3 when returning to the seat is reduced, and the operation is more convenient. Conversely, when the upper adjusting ring 6 descends to reduce the first opening, the recoil force is increased, so that the valve clack 3 is opened, and the adjustment of performance parameters such as the setting pressure and the like is realized. The design is convenient to operate, and can meet the requirements of different occasions.
The lower adjusting ring 7 is arranged on the outer peripheral wall of the inlet sleeve 4, and the lower adjusting ring 7 is connected with the inlet sleeve 4 in an adjustable manner in a threaded screwing mode, so that the lower adjusting ring 7 can move up and down outside the inlet sleeve 4. The valve body 1 is provided with the lower adjusting bolt 71, the lower adjusting bolt 71 is also arranged on the outer wall of the valve body 1 in a threaded screwing mode, and the lower adjusting bolt 71 penetrates through the valve body 1 to be abutted with the outer wall of the lower adjusting ring 7, so that the position of the lower adjusting ring 7 can be adjusted more accurately. The top of the lower adjusting ring 7 can be propped in the valve clack 3 or form a second opening degree for adjusting the size with the valve clack 3. The lower adjusting ring 7 descends to enlarge the second opening degree, so that the seat returning resistance can be reduced, the lower adjusting ring 7 is lifted to reduce the second opening degree, the opening height can be reduced, and the adjustment of the performance parameters is realized.
From the above, the up-and-down movement of the upper adjusting ring 6 and the lower adjusting ring 7 can be adjusted to realize the double adjustment of the performance parameters.
The top end of the guide sleeve 5 is provided with a limiting part 51 extending inwards, and the limiting part 51 can be contacted with the top surface of the valve clack 3 to form limitation. The stopper 51 restricts the upward stroke of the valve flap 3, preventing the valve flap from excessively rising, and enhancing safety.
The peripheral wall of the valve clack 3 keeps contact with the inner wall of the guide sleeve 5 and slides relatively, and the guide sleeve 5 plays a role in guiding the lifting of the valve clack 3, so that the stability and effectiveness of the lifting process of the valve clack 3 are ensured.
The top of valve body 1 has offered the installing port, and the cover of installing 8 is covered on the installing port, maintains the inside part of valve body 1 through tearing valve gap 8 down, can also suitably increase and decrease the weight of balancing weight 32.
The balancing weights 32 are of sheet-shaped structures, the sizes of the balancing weights 32 are matched with the horizontal section of the balancing weight cavity 31, the balancing weights 32 can cover the whole balancing weight cavity 31, and the balancing weights 32 are overlapped in the balancing weight cavity 31 in a laminating mode, so that the pressure of the balancing weights to the valve clack 3 is more balanced, and the safety valve is beneficial to safe operation.
Claims (7)
1. The utility model provides a dead weight formula double regulation circle relief valve, is including valve body (1), disk seat (2) and valve clack (3), import cover (4) are installed to valve body (1), disk seat (2) are fixed in the top of import cover (4), its characterized in that: the valve clack (3) is of a cylindrical structure with a closed bottom, the bottom of the valve clack (3) is in sealing fit with the valve seat (2), a counterweight cavity (31) with an opening at the top is formed in the valve clack (3), and a plurality of counterweight blocks (32) are placed in the counterweight cavity (31); the valve body (1) is internally and fixedly provided with a guide sleeve (5), and the valve clack (3) can be installed in the guide sleeve (5) in a lifting and moving manner.
2. The dual net weight trim ring safety valve of claim 1, wherein: an upper adjusting ring (6) is arranged on the outer peripheral wall of the guide sleeve (5), the upper adjusting ring (6) is connected with the guide sleeve (5) in an adjustable mode through screw threads, an upper adjusting bolt (61) is arranged on the valve body (1), the upper adjusting bolt (61) is arranged on the outer wall of the valve body (1) in a screw thread mode, and the upper adjusting bolt (61) penetrates through the valve body (1) and is abutted with the outer wall of the upper adjusting ring (6); a first opening with adjustable size is formed between the bottom of the upper adjusting ring (6) and the valve seat (2).
3. The net weight double trim ring safety valve of claim 1 or 2, wherein: the lower adjusting ring (7) is arranged on the outer peripheral wall of the inlet sleeve (4), the lower adjusting ring (7) is connected with the inlet sleeve (4) in an adjustable mode through screw threads, a lower adjusting bolt (71) is arranged on the valve body (1), the lower adjusting bolt (71) is arranged on the outer wall of the valve body (1) in a screw thread mode, and the lower adjusting bolt (71) penetrates through the valve body (1) and is abutted with the outer wall of the lower adjusting ring (7); the top of the lower adjusting ring (7) can be propped in the valve clack (3) or form a second opening degree for adjusting the size with the valve clack (3).
4. The net weight double trim ring safety valve of claim 1 or 2, wherein: the top of the guide sleeve (5) comprises a limiting part (51) extending inwards, and the limiting part (51) can abut against the top surface of the valve clack (3) to form limiting.
5. The net weight double trim ring safety valve of claim 1 or 2, wherein: the outer peripheral wall of the valve clack (3) is in contact with the inner wall of the guide sleeve (5), and the valve clack and the guide sleeve are in relative sliding movement.
6. The net weight double trim ring safety valve of claim 1 or 2, wherein: the top of the valve body (1) is provided with a mounting opening, and a valve cover (8) is arranged on the mounting opening in a covering manner.
7. The net weight double trim ring safety valve of claim 1 or 2, wherein: the balancing weight (32) is of a sheet-shaped structure, and the size of the balancing weight (32) is matched with the horizontal section of the balancing weight cavity (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322993478.6U CN220956979U (en) | 2023-11-06 | 2023-11-06 | Net weight type double-adjusting ring safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322993478.6U CN220956979U (en) | 2023-11-06 | 2023-11-06 | Net weight type double-adjusting ring safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956979U true CN220956979U (en) | 2024-05-14 |
Family
ID=91012408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322993478.6U Active CN220956979U (en) | 2023-11-06 | 2023-11-06 | Net weight type double-adjusting ring safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956979U (en) |
-
2023
- 2023-11-06 CN CN202322993478.6U patent/CN220956979U/en active Active
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