CN212564696U - Novel low-noise high-pressure-difference cage type single-seat regulating valve - Google Patents
Novel low-noise high-pressure-difference cage type single-seat regulating valve Download PDFInfo
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- CN212564696U CN212564696U CN202021439196.1U CN202021439196U CN212564696U CN 212564696 U CN212564696 U CN 212564696U CN 202021439196 U CN202021439196 U CN 202021439196U CN 212564696 U CN212564696 U CN 212564696U
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Abstract
The utility model discloses a novel low-noise high-pressure-difference cage type single-seat regulating valve, which comprises a valve body, a valve cover arranged on the valve body, a bracket arranged on the valve cover and an actuating mechanism arranged on the bracket; the valve is characterized in that a sleeve and a guide sleeve are arranged in the valve body, and the sleeve and the guide sleeve are fixedly arranged in the valve body through a valve cover; the sleeve is provided with a plurality of small holes, and the bottom of the sleeve is also provided with a plurality of horn holes; the guide sleeve is provided with a mounting groove, a U-shaped sealing ring is mounted in the mounting groove, and a metal tension spring is mounted on the U-shaped sealing ring. The utility model has the advantages that through the arrangement of the through hole on the valve core, the valve core is provided with a piston balanced type characteristic curve with flow, and the regulating valve can realize zero leakage while allowing the closing of the pressure difference; through the porous sleeve, the medium can uniformly pass through the symmetrical small holes, a medium flow field is optimized, the medium flow rate is reduced, flash evaporation is avoided, and therefore cavitation damage and noise are reduced.
Description
Technical Field
The utility model relates to a governing valve specifically indicates a novel low noise high differential cage type single seat governing valve.
Background
The governing valve product on the existing market generally has under the poor operating mode of high pressure, and the noise is big, sealed face and valve internals easily erode the damage for the leakage grow is let out to the disk seat, and the regulation precision variation influences product life, can't satisfy the operation requirement of harsh operating mode. Therefore, a novel low-noise high-pressure-difference cage type single-seat regulating valve is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above problems and providing a novel low-noise high-pressure-difference cage type single-seat regulating valve.
In order to achieve the purpose, the utility model provides a novel cage type single-seat regulating valve with low noise and high pressure difference, which comprises a valve body, a valve cover arranged on the valve body, a bracket arranged on the valve cover and an actuating mechanism arranged on the bracket; the valve is characterized in that a sleeve and a guide sleeve are arranged in the valve body, and the sleeve and the guide sleeve are fixedly arranged in the valve body through a valve cover; the sleeve is provided with a plurality of small holes, and the bottom of the sleeve is also provided with a plurality of horn holes; the guide sleeve is provided with a mounting groove, a U-shaped sealing ring is mounted in the mounting groove, and a metal tension spring is mounted on the U-shaped sealing ring.
Further preferably, the valve body is provided with an installation step, the installation step is provided with a limiting groove, the sleeve is provided with a fixed step matched with the limiting groove, and the sleeve is installed on the installation step through the matching of the fixed step and the limiting groove.
Preferably, a valve rod is slidably mounted on the valve cover, and a valve core is fixedly mounted at one end of the valve rod; the packing is also arranged between the valve cover and the valve rod, the packing gland is also arranged on the valve cover, and the packing is fixedly arranged between the valve cover and the valve rod through the packing gland; the other end of the valve rod is fixedly provided with a connecting rod, and the connecting rod is connected with an actuating mechanism.
Preferably, the sleeve and the guide sleeve are internally provided with a valve core in a sliding manner, and the valve core is provided with a plurality of through holes.
Further preferably, the pores are meandering.
Further preferably, a sealing groove is further formed in the fixed step, and a sealing ring is mounted in the sealing groove.
The utility model has the advantages that through the through hole arranged on the valve core, the valve core is provided with a piston balanced type characteristic curve with flow, and the regulating valve can realize zero leakage while allowing the closing of the pressure difference; through the porous sleeve, the medium can uniformly pass through the symmetrical small holes, a medium flow field is optimized, the medium flow rate is reduced, flash evaporation is avoided, and therefore cavitation damage and noise are reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the enlarged partial structure of the present invention;
FIG. 3 is a schematic structural view of a U-shaped seal ring of the present invention;
fig. 4 is a cross-sectional view of the middle sleeve of the present invention.
Illustration of the drawings: 1. a valve body; 2. a valve cover; 3. a support; 4. an actuator; 5. a sleeve; 6. a guide sleeve; 7. a small hole; 8. mounting grooves; 9. a U-shaped sealing ring; 10. a metal tension spring; 11. mounting a step; 12. fixing the step; 13. a valve stem; 14. a valve core; 15. a filler; 16. a packing gland; 17. a connecting rod; 18. a through hole; 19. a horn hole; 20. a limiting groove; 21. a sealing groove; 22. and (5) sealing rings.
Detailed Description
We will further explain a novel low-noise high-pressure-difference cage type single-seat regulating valve of the present invention with reference to the accompanying drawings.
As shown in fig. 1-4, the novel low-noise high-pressure-difference cage-type single-seat regulating valve of the present embodiment includes a valve body 1, a valve cover 2 mounted on the valve body 1, a bracket 3 mounted on the valve cover 2, and an actuator 4 mounted on the bracket 3; the valve is characterized in that a sleeve 5 and a guide sleeve 6 are arranged in the valve body 1, and the sleeve 5 and the guide sleeve 6 are fixedly arranged in the valve body 1 through a valve cover 2; the sleeve 5 is provided with a plurality of small holes 7, and the bottom of the sleeve 5 is also provided with a plurality of horn holes 19 with small lower parts and large upper parts; an installation groove 8 is formed in the guide sleeve 6, a U-shaped sealing ring 9 is installed in the installation groove 8, and a metal tension spring 10 is installed on the U-shaped sealing ring 9; the valve body 1 is provided with an installation step 11, the installation step 11 is provided with a limiting groove 20, the sleeve 5 is provided with a fixed step 12 matched with the limiting groove 20, and the sleeve 5 is installed on the installation step 11 through the matching of the fixed step 12 and the limiting groove 20; a valve rod 13 is slidably mounted on the valve cover 2, and a valve core 14 is fixedly mounted at one end of the valve rod 13; a packing 15 is further installed between the valve cover 2 and the valve rod 13, a packing gland 16 is further installed on the valve cover 2, and the packing 15 is fixedly installed between the valve cover 2 and the valve rod 13 through the packing gland 16; the other end of the valve rod 13 is fixedly provided with a connecting rod 17, and the connecting rod 17 is connected with the actuating mechanism 4; a valve core 14 is arranged in the sleeve 5 and the guide sleeve 6 in a sliding way, and a plurality of through holes 18 are arranged on the valve core 14; the small holes 7 are zigzag; a sealing groove 21 is further formed in the fixed step 12, and a sealing ring 22 is mounted in the sealing groove 21.
The utility model discloses a working process: firstly, the valve is installed in a pipeline, when the valve is in a closed state, a medium firstly enters the sleeve 5 through the horn hole 19 on the sleeve 5, and then enters the cavity above the valve core 14 through the through hole 18 on the valve core 14, so that the valve core 14 is in a balanced state in the sleeve 5 and the guide sleeve 6, and zero leakage can be realized while the valve is closed; when the valve is opened by the actuator 4, the medium is discharged through a number of small holes 7 in the sleeve 5.
The utility model has the advantages that: the bottom of the sleeve 5 is provided with the horn holes 19, so that when a medium enters from small to large through the bottom of the sleeve 5, the impact force of the medium is effectively reduced; through the through hole 18 arranged on the valve core 14, a medium can enter the upper part of the valve core 14 through the through hole 18, so that the valve core 14 has a piston balance type characteristic curve with flow, and the regulating valve can realize zero leakage while allowing the closing of differential pressure; the porous sleeve 5 can enable the medium to uniformly pass through the small holes 7, the small holes 7 are arranged in a zigzag shape, and when the medium passes through the zigzag small holes 7, the medium flow field can be better optimized, the medium flow speed is reduced, flash evaporation is avoided, and therefore cavitation damage and noise are reduced; through the arrangement of the U-shaped sealing ring 9, the metal tension spring 10 is arranged in the U-shaped sealing ring 9, and the pretightening force and the medium pressure of the metal tension spring 10 continuously act on the sealing lip edge of the U-shaped sealing ring 9, so that the valve core 14 is always in a state of dynamic pressure balance, and zero leakage sealing is realized; the limiting groove 20 is arranged on the mounting step 11, the fixing step 12 matched with the limiting groove is arranged on the sleeve 5, and the position of the sleeve 5 can be better limited through the matching of the fixing step 12 and the limiting groove 20, so that the mounting is convenient and the stability is strong; the sealing effect is improved by arranging the sealing groove 21 on the fixing step 12 and installing the sealing ring 22 in the sealing groove 21.
The scope of the present invention is not limited to the above embodiments and their variations. The present invention is not limited to the above embodiments, and other modifications and substitutions may be made by those skilled in the art.
Claims (6)
1. A novel low-noise high-pressure-difference cage type single-seat regulating valve comprises a valve body (1), a valve cover (2) arranged on the valve body (1), a support (3) arranged on the valve cover (2) and an actuating mechanism (4) arranged on the support (3); the valve is characterized in that a sleeve (5) and a guide sleeve (6) are installed in the valve body (1), and the sleeve (5) and the guide sleeve (6) are fixedly installed in the valve body (1) through a valve cover (2); the sleeve (5) is provided with a plurality of small holes (7), and the bottom of the sleeve (5) is also provided with a plurality of horn holes (19); be equipped with mounting groove (8) on uide bushing (6), install U type sealing washer (9) in mounting groove (8), install metal tension spring (10) on U type sealing washer (9).
2. A novel low noise high differential pressure cage type single seat regulating valve according to claim 1, characterized in that: be equipped with installation step (11) on valve body (1), installation step (11) are equipped with spacing groove (20), be equipped with on sleeve (5) with fixed step (12) of spacing groove (20) looks adaptation, sleeve (5) are installed on installation step (11) through the cooperation of fixed step (12) with spacing groove (20).
3. A novel low noise high differential pressure cage type single seat regulating valve according to claim 1, characterized in that: a valve rod (13) is slidably mounted on the valve cover (2), and a valve core (14) is fixedly mounted at one end of the valve rod (13); a packing (15) is further installed between the valve cover (2) and the valve rod (13), a packing gland (16) is further installed on the valve cover (2), and the packing (15) is fixedly installed between the valve cover (2) and the valve rod (13) through the packing gland (16); and the other end of the valve rod (13) is fixedly provided with a connecting rod (17), and the connecting rod (17) is connected with the actuating mechanism (4).
4. A novel low noise high differential pressure cage type single seat regulating valve according to claim 3, characterized in that: a valve core (14) is arranged in the sleeve (5) and the guide sleeve (6) in a sliding mode, and a plurality of through holes (18) are formed in the valve core (14).
5. A novel low noise high differential pressure cage type single seat regulating valve according to claim 1, characterized in that: the small holes (7) are zigzag.
6. A novel low noise high differential pressure cage type single seat regulating valve according to claim 2, characterized in that: still be equipped with seal groove (21) on fixed step (12), install sealing washer (22) in seal groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439196.1U CN212564696U (en) | 2020-07-18 | 2020-07-18 | Novel low-noise high-pressure-difference cage type single-seat regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439196.1U CN212564696U (en) | 2020-07-18 | 2020-07-18 | Novel low-noise high-pressure-difference cage type single-seat regulating valve |
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| Publication Number | Publication Date |
|---|---|
| CN212564696U true CN212564696U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021439196.1U Active CN212564696U (en) | 2020-07-18 | 2020-07-18 | Novel low-noise high-pressure-difference cage type single-seat regulating valve |
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| CN (1) | CN212564696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006767A (en) * | 2022-12-02 | 2023-04-25 | 中广核工程有限公司 | Novel multistage adjustable pressure reducing regulating valve |
-
2020
- 2020-07-18 CN CN202021439196.1U patent/CN212564696U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006767A (en) * | 2022-12-02 | 2023-04-25 | 中广核工程有限公司 | Novel multistage adjustable pressure reducing regulating valve |
| CN116006767B (en) * | 2022-12-02 | 2024-01-30 | 中广核工程有限公司 | Multistage adjustable pressure reducing regulating valve |
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