CN112610749A - Multi-stage pressure reduction regulating valve internal part structure - Google Patents
Multi-stage pressure reduction regulating valve internal part structure Download PDFInfo
- Publication number
- CN112610749A CN112610749A CN202011633750.4A CN202011633750A CN112610749A CN 112610749 A CN112610749 A CN 112610749A CN 202011633750 A CN202011633750 A CN 202011633750A CN 112610749 A CN112610749 A CN 112610749A
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- China
- Prior art keywords
- valve
- installation cavity
- cage
- upper cover
- pressure reduction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K39/00—Devices for relieving the pressure on the sealing faces
- F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention relates to a valve internal part structure of a multistage depressurization regulating valve, which comprises a valve body, wherein an upper cover is arranged at the upper part of the valve body, an installation cavity is arranged between the valve body and the upper cover, a water inlet channel is formed in one side of the valve body, a water outlet channel 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, the installation cavity water outlet is communicated with the water outlet channel, a valve seat is arranged in the installation cavity water inlet installation cavity, a depressurization cage group is arranged at the installation cavity water outlet, the upper end of the depressurization cage group props against the upper cover, the lower end of the depressurization. The invention has the advantages of effectively reducing pressure, preventing cavitation corrosion, reducing valve noise, reducing vibration, being convenient, reliable and easy to maintain, having long service life and the like, and is suitable for the control process of a special high-pressure-difference process.
Description
Technical Field
The invention relates to a valve internal part structure of a regulating valve, in particular to a novel multi-stage depressurization regulating valve internal part 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 invention aims to overcome the defects in the prior art and provide a valve structure scheme which has the advantages of effective pressure reduction, cavitation erosion resistance, noise reduction, convenient processing, easy maintenance, economy and reliability.
According to the technical scheme provided by the invention: 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, slide in balanced seal ring seat, step-down cage group, the disk seat and be equipped with the case, the case top is equipped with rather than fixed connection's valve rod.
As a further improvement of the invention, a medium circulation hole is arranged in the valve seat, and a valve seat sealing inclined plane is arranged at the upper end of the medium circulation hole.
As a further improvement of the invention, the bottom of the valve core is provided with a valve core sealing inclined plane.
As a further improvement of the invention, the pressure reduction cage group is of a multi-layer pressure reduction cage nested structure, each layer of pressure reduction cage is provided with a plurality of throttling holes, and the angles of the adjacent throttling holes 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 invention, 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 of the invention, a first balance sealing ring is arranged between the periphery of the valve core and the slide hole, and a second sealing gasket is arranged between the upper cover and the balance sealing ring seat.
As a further improvement of the invention, the inner wall of the slide hole is provided with a sealing ring groove.
As a further improvement of the invention, the upper cover is fixed on the upper part of the valve body by a fastener.
As a further improvement of the invention, the valve core and the valve rod are fixedly connected in a threaded mode.
The positive progress effect of this application lies in:
the invention has the advantages of effectively reducing pressure, preventing cavitation corrosion, reducing valve noise, reducing vibration, being convenient, reliable and easy to maintain, having long service life and the like, and is suitable for the control process of a special high-pressure-difference process.
Drawings
Fig. 1 is a schematic structural view 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 may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 in order to facilitate the description of 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 figure 1, the invention relates to a multi-stage depressurization regulating valve trim structure which comprises a valve body 9, wherein an upper cover 8 is arranged on the upper part of the valve body 9, a mounting cavity is arranged between the valve body 9 and the upper cover 8, one side of the valve body 9 is provided with a water inlet channel 9-1, the other side of the valve body is provided with a water outlet channel 9-2, one side of the mounting cavity is provided with a mounting cavity water inlet, the other side of the mounting cavity is provided with a mounting cavity water outlet, the mounting cavity water inlet is communicated with the water inlet channel 9-1, the mounting cavity water outlet is communicated with the water outlet channel 9-2, a valve seat 12 is arranged in the mounting cavity water inlet, the mounting cavity water outlet is provided with a. 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 will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which 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, 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 |
|---|---|---|---|
| CN202011633750.4A CN112610749A (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 |
|---|---|---|---|
| CN202011633750.4A CN112610749A (en) | 2020-12-31 | 2020-12-31 | Multi-stage pressure reduction regulating valve internal part structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112610749A true CN112610749A (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011633750.4A Pending CN112610749A (en) | 2020-12-31 | 2020-12-31 | Multi-stage pressure reduction regulating valve internal part structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN112610749A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309897A (en) * | 2021-07-29 | 2021-08-27 | 邳州宏盛液压元件有限公司 | Case buffer structure |
| CN116045070A (en) * | 2023-03-31 | 2023-05-02 | 艾坦姆流体控制技术(山东)有限公司 | Ball cage type noise reduction regulating valve |
| KR102545454B1 (en) * | 2022-12-12 | 2023-06-21 | 한일마이크로텍(주) | Valve having cascade type multi-separating-trim-stack-unit |
-
2020
- 2020-12-31 CN CN202011633750.4A patent/CN112610749A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309897A (en) * | 2021-07-29 | 2021-08-27 | 邳州宏盛液压元件有限公司 | Case buffer structure |
| KR102545454B1 (en) * | 2022-12-12 | 2023-06-21 | 한일마이크로텍(주) | Valve having cascade type multi-separating-trim-stack-unit |
| CN116045070A (en) * | 2023-03-31 | 2023-05-02 | 艾坦姆流体控制技术(山东)有限公司 | Ball cage type noise reduction regulating valve |
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