CN215215016U - Multi-stage pressure reduction regulating valve internal part structure - Google Patents
Multi-stage pressure reduction regulating valve internal part structure Download PDFInfo
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- CN215215016U CN215215016U CN202023337763.5U CN202023337763U CN215215016U CN 215215016 U CN215215016 U CN 215215016U CN 202023337763 U CN202023337763 U CN 202023337763U CN 215215016 U CN215215016 U CN 215215016U
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Abstract
The utility model relates to a multistage step-down governing valve internals structure, which comprises a valve body, the upper cover is installed on valve body upper portion, be equipped with the installation cavity between valve body and the upper cover, it has the inlet channel to open valve body one side, the opposite side is opened there is the outlet channel, installation cavity one side is the installation cavity water inlet, the opposite side is the installation cavity delivery port, installation cavity water inlet and inlet channel intercommunication, installation cavity delivery port and outlet channel intercommunication, install the disk seat in the installation cavity water inlet installation cavity, the installation cavity delivery port is equipped with step-down cage group, step-down cage group upper end supports the upper cover, the lower extreme supports the disk seat, balanced seal ring seat, step-down cage group, it is equipped with the case to slide in the disk seat, the case top is equipped with rather than fixed connection's valve rod, valve rod slidable mounting is in the upper cover. The utility model has the advantages of imitate the reducing pressure, prevent cavitation corrosion, reduce the valve noise, the reduction vibration, convenient and reliable easy maintenance, long service life is applicable to special high pressure differential process control process.
Description
Technical Field
The utility model relates to a governing valve internals structure, specifically speaking are novel multistage pressure reduction governing valve internals structure.
Background
With the rapid development of the petrochemical industry, in a special high pressure difference process flow, the requirements of low noise, strong pressure reduction capability, stable regulation, cavitation reduction, vibration reduction, easy maintenance, long service life and the like are provided for a valve used in the process. Conventional valve structures have not been able to meet the process requirements set forth above. Some inlet valves adopt a labyrinth throttling groove depressurization mode to better meet the process requirements, but the labyrinth throttling groove processing process is more complex and the processing cost is higher; therefore, designing a novel valve with pressure reduction, cavitation erosion resistance and noise reduction functions has become an important use requirement in the chemical industry.
Disclosure of Invention
The utility model aims at overcoming the not enough of existence among the prior art, provide an effectual decompression, anti cavitation, fall the noise of making an uproar, simultaneous processing is convenient, easily maintenance, the economic and reliable valve structure scheme.
According to the utility model provides a technical scheme: the utility model provides a multistage step-down governing valve internals structure, includes the valve body, the upper cover is installed on valve body upper portion, the valve body with be equipped with the installation cavity between the upper cover, open valve body one side has the inlet channel, and open the opposite side has out the water course, installation cavity one side is the installation cavity water inlet, and the opposite side is the installation cavity delivery port, installation cavity water inlet and inlet channel intercommunication, installation cavity delivery port and water out water course intercommunication, install the disk seat in the installation cavity water inlet installation cavity, the installation cavity delivery port is equipped with step-down cage group, step-down cage group upper end supports the upper cover, and the lower extreme supports the disk seat, slides in balanced seal ring seat, step-down cage group, the disk seat and is equipped with the case, the case top is equipped with rather than fixed connection's valve rod, the valve rod slidable mounting be in the upper cover.
As a further improvement, a medium circulation hole is formed in the valve seat, and a valve seat sealing inclined plane is arranged on the upper end of the medium circulation hole.
As a further improvement of the utility model, the valve core bottom is equipped with the sealed inclined plane of case.
As a further improvement of the utility model, the pressure reduction cage group is of a multilayer pressure reduction cage nested structure, a plurality of orifices are arranged on each layer of pressure reduction cage, and the angles of adjacent orifices form an angle; the blood pressure reducing cage group comprises a blood pressure reducing outer cage, a blood pressure reducing middle cage and a blood pressure reducing inner cage; the pressure-reducing middle cage and the pressure-reducing inner cage are sequentially sleeved in the pressure-reducing outer cage.
As a further improvement of the utility model, a balance sealing ring seat is arranged between the upper cover and the pressure reduction cage group, and a balance hole is arranged above the valve core; the balance sealing ring seat is internally provided with a slide hole, and the upper cover, the balance sealing ring seat and the valve core enclose a balance cavity.
As a further improvement, the valve core periphery with set up first balanced sealing ring between the slide opening, the upper cover with set up second seal gasket between the balanced sealing ring seat.
As a further improvement of the utility model, the inner wall of the slide hole is provided with a sealing ring groove.
As a further improvement of the utility model, the upper cover is fixed on the upper part of the valve body through a fastener.
As a further improvement of the present invention, the valve element is fixedly connected to the valve rod by a screw thread.
The utility model discloses an actively advance the effect and lie in:
the utility model has the advantages of imitate the reducing pressure, prevent cavitation corrosion, reduce the valve noise, the reduction vibration, convenient and reliable easy maintenance, long service life is applicable to special high pressure differential process control process.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover such processes, methods, systems, articles, or apparatus that comprise a list of steps or elements, are not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such processes, methods, articles, or apparatus.
In the figure 1-2, the valve core 2, the balance sealing ring seat 4, the slide hole 4-1, the valve rod 7, the upper cover 8, the valve body 9, the water inlet channel 9-1, the water outlet channel 9-2, the valve seat 12, the medium circulation hole 12-1 and the like are included.
As shown in FIG. 1, the utility model relates to a multistage step-down governing valve internals structure, including valve body 9, upper cover 8 is installed on valve body 9 upper portion, is equipped with the installation cavity between valve body 9 and the upper cover 8, and open valve body 9 one side has inlet channel 9-1, and the opposite side is opened has outlet channel 9-2, and installation cavity one side is the installation cavity water inlet, and the opposite side is the installation cavity delivery port, and the installation cavity water inlet communicates with inlet channel 9-1, and the installation cavity delivery port communicates with outlet channel 9-2, installation disk seat 12 in the installation cavity water inlet installation cavity, and the installation cavity delivery port is equipped with step-down cage group 11, and step-down cage group 11 upper end supports upper cover 8, and the lower extreme supports disk seat 12. The balance sealing ring seat 4, the pressure reduction cage group 11 and the valve seat 12 are internally provided with a valve core 2 in a sliding way, a valve rod 7 fixedly connected with the valve core 2 is arranged above the valve core 2, and the valve rod 7 is arranged in the upper cover 8 in a sliding way.
The valve seat 12 is provided with a medium flowing hole 12-1 for medium flowing, and the upper end of the medium flowing hole 12-1 is provided with a valve seat sealing inclined plane.
The bottom of the valve core 2 is provided with a valve core sealing inclined plane which is matched with the valve seat sealing inclined plane.
The pressure reduction cage group 11 is of a multilayer pressure reduction cage nested structure, has a compact structure and comprises a pressure reduction outer cage, a pressure reduction middle cage and a pressure reduction inner cage. The pressure-reducing middle cage and the pressure-reducing inner cage are sleeved in the pressure-reducing outer cage in sequence.
A plurality of throttling holes are formed in each layer of the pressure reduction cage, when the medium passes through the throttling holes, the medium is divided into different small-strand throttling sections to achieve the pressure reduction effect, and the 11 layers of the pressure reduction cage group are designed according to the requirements of process working conditions and can be two layers, three layers and the like. The throttling holes in each layer of the pressure reduction cage group 11 are further arranged in an inclined mode, the inclined throttling holes have stronger flow resistance characteristics relative to the horizontal straight-through throttling holes and have better pressure reduction capability, throttling hole channels among the multiple layers of pressure reduction cages are connected end to end, the angles of the adjacent throttling holes form 90 degrees, a hole type labyrinth structure is formed, the hole type labyrinth structure has good pressure reduction and noise reduction capability, and the adaptability of the valve under a high-pressure working condition is improved.
Each layer of the pressure reduction cage group 11 is fixedly connected with each other through the positioning pin 10, so that the pressure reduction cage group 11 is integrated, the design of the positioning pin 10 can ensure the accurate butt joint of the orifice opening position of each layer of the pressure reduction cage, and meanwhile, the pressure reduction cage group 11 is more convenient to disassemble and maintain, and the maintenance cost is reduced. And a spring energy storage type balance sealing ring 3 which plays a role in isolating high and low pressure media and can also play a role in guiding the valve core is arranged between the pressure reduction cage group 11 and the balance sealing ring seat 4 connected with the pressure reduction cage group.
The upper cover 8 is fixed on the upper part of the valve body 9 by a fastener.
The valve core 2 is fixedly connected with the valve rod 7 in a thread mode.
When the regulating valve is closed, the valve rod 7 pushes the valve core 2 to move downwards, so that the valve core sealing inclined surface is tightly attached to the valve seat sealing inclined surface, and a medium is blocked from passing through the water inlet of the mounting cavity.
When the regulating valve is opened, the valve rod 7 drives the valve core 2 to move upwards, so that the sealing inclined surface of the valve core is separated from the sealing inclined surface of the valve seat, blocking media enter the water inlet of the installation cavity from the water inlet channel 9-1 and flow into the water outlet channel 9-2 from the water outlet of the installation cavity after passing through the pressure reduction cage group 11.
In order to reduce the pulling force of the valve stem 7 when opening the regulating valve. A balance sealing ring seat 4 is arranged between the upper cover 8 and the pressure reduction cage group 11, and a balance hole 2-1 is arranged above the valve core 2.
A slide hole 4-1 is arranged in the balance seal ring seat 4, the valve core 2 can slide in the slide hole 4-1, and the upper cover 8, the balance seal ring seat 4 and the valve core 2 enclose a balance cavity.
In order to keep the pressure of the balance cavity and prevent leakage, a first balance sealing ring 3 is arranged between the periphery of the valve core 2 and the slide hole 4-1, and a second sealing gasket 6 is arranged between the upper cover 8 and the balance sealing ring seat 4.
The inner wall of the sliding hole 4-1 is provided with a sealing ring groove, and a first balance sealing ring 3 is arranged in the sealing ring groove.
When the regulating valve is closed, a part of medium enters the balance cavity, and the pressure intensity of one side of the valve core 2 close to the water inlet of the installation cavity can be reduced.
The novel multi-stage depressurization regulating valve internal part structure has the advantages of effectively reducing pressure, preventing cavitation corrosion, reducing the valve noise, reducing vibration, being convenient and reliable and easy to maintain, long in service life and the like, and can be widely applied to various high-pressure-difference working conditions.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (9)
1. The utility model provides a multistage step-down governing valve trim structure which characterized in that: the structure comprises a valve body (9), an upper cover (8) is installed on the upper portion of the valve body (9), an installation cavity is arranged between the valve body (9) and the upper cover (8), a water inlet channel (9-1) is formed in one side of the valve body (9), a water outlet channel (9-2) is formed in the other side of the valve body, an installation cavity water inlet is formed in one side of the installation cavity, an installation cavity water outlet is formed in the other side of the installation cavity, the installation cavity water inlet is communicated with the water inlet channel (9-1), the installation cavity water outlet is communicated with the water outlet channel (9-2), a valve seat (12) is installed in the installation cavity water inlet installation cavity, a pressure reduction cage group (11) is arranged at the installation cavity water outlet, the upper end of the pressure reduction cage group (11) abuts against the upper cover (8), the lower end of the pressure reduction cage group (11) abuts against the valve seat (12), a balance seal ring seat (4), the pressure reduction cage group (11) and a valve core (2) is arranged in the valve seat (12) in a sliding mode, and a valve rod (7) fixedly connected with the valve core (2) is arranged above the valve core, and the valve rod (7) is slidably arranged in the upper cover (8).
2. The multiple pressure reducing regulator valve trim structure of claim 1, wherein: a medium circulation hole (12-1) is formed in the valve seat (12), and a valve seat sealing inclined plane is arranged at the upper end of the medium circulation hole (12-1).
3. The multiple pressure reducing regulator valve trim structure of claim 1, wherein: the bottom of the valve core (2) is provided with a valve core sealing inclined plane.
4. The multiple pressure reducing regulator valve trim structure of claim 1, wherein: the pressure reduction cage group (11) is of a multi-layer pressure reduction cage nested structure, a plurality of throttling holes are formed in each layer of pressure reduction cage, and the angle of each adjacent throttling hole is 90 degrees; the blood pressure reducing cage group (11) comprises a blood pressure reducing outer cage, a blood pressure reducing middle cage and a blood pressure reducing inner cage; the pressure-reducing middle cage and the pressure-reducing inner cage are sequentially sleeved in the pressure-reducing outer cage.
5. The multiple pressure reducing regulator valve trim structure of claim 1, wherein: a balance sealing ring seat (4) is arranged between the upper cover (8) and the pressure reduction cage group (11), and a balance hole (2-1) is arranged above the valve core (2); a slide hole (4-1) is formed in the balance sealing ring seat (4), and a balance cavity is enclosed by the upper cover (8), the balance sealing ring seat (4) and the valve core (2).
6. The multiple pressure reducing regulator valve trim structure of claim 5, wherein: a first balance sealing ring (3) is arranged between the periphery of the valve core (2) and the slide hole (4-1), and a second sealing gasket (6) is arranged between the upper cover (8) and the balance sealing ring seat (4).
7. The multiple pressure reducing regulator valve trim structure of claim 6, wherein: and a sealing ring groove is formed in the inner wall of the sliding hole (4-1).
8. The multiple pressure reducing regulator valve trim structure of claim 1, wherein: the upper cover (8) is fixed on the upper part of the valve body (9) through a fastener.
9. The multiple pressure reducing regulator valve trim structure of claim 1, wherein: the valve core (2) is fixedly connected with the valve rod (7) in a thread mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023337763.5U CN215215016U (en) | 2020-12-31 | 2020-12-31 | Multi-stage pressure reduction regulating valve internal part structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023337763.5U CN215215016U (en) | 2020-12-31 | 2020-12-31 | Multi-stage pressure reduction regulating valve internal part structure |
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| Publication Number | Publication Date |
|---|---|
| CN215215016U true CN215215016U (en) | 2021-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023337763.5U Active CN215215016U (en) | 2020-12-31 | 2020-12-31 | Multi-stage pressure reduction regulating valve internal part structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307782A (en) * | 2023-11-30 | 2023-12-29 | 海普瑞(常州)洁净系统科技有限公司 | Control valve for fluid and working method thereof |
-
2020
- 2020-12-31 CN CN202023337763.5U patent/CN215215016U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117307782A (en) * | 2023-11-30 | 2023-12-29 | 海普瑞(常州)洁净系统科技有限公司 | Control valve for fluid and working method thereof |
| CN117307782B (en) * | 2023-11-30 | 2024-02-23 | 海普瑞(常州)洁净系统科技有限公司 | Control valve for fluid and working method thereof |
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