CN119878838A - Erosion-resistant cage-type throttling valve core assembly - Google Patents
Erosion-resistant cage-type throttling valve core assembly Download PDFInfo
- Publication number
- CN119878838A CN119878838A CN202311376000.7A CN202311376000A CN119878838A CN 119878838 A CN119878838 A CN 119878838A CN 202311376000 A CN202311376000 A CN 202311376000A CN 119878838 A CN119878838 A CN 119878838A
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- CN
- China
- Prior art keywords
- cage
- sleeve
- cage sleeve
- seat
- orifice
- 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.)
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Classifications
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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
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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
- F16K1/52—Means for additional adjustment of the rate of flow
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to the technical field of throttling pressure control devices in the oil and gas well testing process, in particular to an erosion-resistant cage type throttling valve core assembly, which comprises an inner cage sleeve, an outer cage sleeve, a sealing sleeve, an outer cage sleeve seat and an extension bushing, wherein the outer side of the upper part of the inner cage sleeve is sleeved with the outer cage sleeve positioned in the outer cage sleeve seat, the inner wall of the outer cage sleeve is in sliding sealing contact with the outer wall of the inner cage sleeve, the lower end of the outer cage sleeve is provided with a first chamfer angle which is 40-50 degrees, and an upper orifice group and a lower orifice group are arranged on the inner cage sleeve corresponding to the position of the outer cage sleeve in a penetrating manner. The invention has reasonable structure, and the high-speed fluid can collide and dissipate energy in the annular cavity formed between the outer wall of the inner cage and the inner wall of the valve cavity and the inner cage through the upper throttling hole, the lower throttling hole and the first chamfer angle, so that the erosion of the high-speed fluid to the inner cage is reduced, and the erosion resistance of the whole throttling valve core assembly is improved.
Description
Technical Field
The invention relates to the technical field of throttling pressure control devices in the process of testing oil and gas wells, in particular to an erosion-resistant cage type throttling valve core assembly.
Background
In the production test process of the oil and gas field, the pressure control operation such as well killing, fluid replacement, emergency sand discharge and the like is often accompanied, the throttle valve is one of key devices for the pressure control operation, the throttle valve is of various types and mainly comprises a wedge throttle valve, a needle throttle valve, a cage throttle valve and the like, the cage throttle valve is most widely applied in a high-pressure gas well, high-pressure high-speed fluid flows into a complex space inside the throttle valve from an inlet of the cage throttle valve, the fluid is further influenced by the space inside the throttle valve, the flowing direction is changed, gas is compressed due to high pressure, flows into a center of the cage from an orifice on the cage and then is reserved from an outlet, but solid particles are accompanied in the high-pressure gas, and the solid particles are influenced by the high-speed natural gas and have high speed, so that serious erosion results are caused to a valve core.
Disclosure of Invention
The invention provides an anti-erosion cage type throttling valve core assembly, which overcomes the defects in the prior art and can effectively solve the problem that the anti-erosion capacity of a valve core of the existing throttling valve is poor.
The technical scheme is that the anti-erosion cage type throttling valve core assembly comprises an inner cage sleeve, an outer cage sleeve, a sealing sleeve, an outer cage sleeve seat and an extension bush, wherein the outer side of the upper part of the inner cage sleeve is provided with the outer cage sleeve positioned in the outer cage sleeve seat, the inner wall of the outer cage sleeve is in sliding sealing contact with the outer wall of the inner cage sleeve, the lower end of the outer cage sleeve is provided with a first chamfer angle which is 40-50 degrees, an upper orifice group and a lower orifice group are arranged on the inner cage sleeve corresponding to the position of the outer cage sleeve in a penetrating way, the upper orifice group comprises two oppositely arranged upper orifices, the lower orifice group comprises two oppositely arranged lower orifices, the aperture of the upper orifices is larger than that of the lower orifices, the outer side of the lower part of the inner cage sleeve is provided with the sealing sleeve, the inner wall of the sealing sleeve is in sealing contact with the outer wall of the inner cage sleeve, the lower side of the inner cage sleeve is provided with the extension bush, the inner diameter of the inner cage sleeve is equal to the inner diameter of the extension bush, and the lower end faces of the inner cage sleeve and the sealing sleeve are both arranged on the upper end faces of the extension bush.
The following are further optimizations and/or improvements to the above described inventive arrangements:
The aperture of the upper orifice may be 35mm to 40mm, and the aperture of the lower orifice may be 10mm to 15mm.
The aperture of the upper orifice may be 38mm, and the aperture of the lower orifice may be 12mm.
The central axis of the upper orifice is parallel to the front-back direction and intersects with the central axis of the inner cage, and the central axis of the lower orifice is parallel to the left-right direction and intersects with the central axis of the inner cage.
The inner cage and the extension bush can be made of tungsten carbide alloy.
The lower end of the outer cage sleeve seat can be higher than the first chamfer, the lower end of the outer cage sleeve seat is provided with a second chamfer, and the second chamfer is 40-50 degrees.
The invention has reasonable structure, and the high-speed fluid can collide and dissipate energy in the annular cavity formed between the outer wall of the inner cage and the inner wall of the valve cavity through the upper throttling hole, the lower throttling hole and the first chamfer angle, so that the erosion of the high-speed fluid to the inner cage is reduced, the erosion resistance of the whole throttling valve core assembly is improved, and in addition, the aperture of the upper throttling hole is larger than that of the lower throttling hole, so that the purpose of accurate throttling of small flow can be achieved.
Drawings
Fig. 1 is a schematic view of a cross-sectional front view of a preferred embodiment of the present invention.
Fig. 2 is a schematic diagram of a cross-sectional front view of the preferred embodiment of the present invention in use.
The coding in the drawing is that 1 is an inner cage, 2 is an outer cage, 3 is a sealing sleeve, 4 is an outer cage seat, 5 is an extension bush, 6 is a first chamfer, 7 is an upper orifice, 8 is a lower orifice, 9 is a second chamfer, 10 is a valve body, 11 is a valve cavity, 12 is an inlet channel, 13 is an outlet channel, and 14 is a valve rod.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout form of fig. 1 of the specification, for example, the positional relationship of front, rear, upper, lower, left, right, etc. is determined according to the layout direction of the drawing of the specification.
The invention is further described below with reference to examples and figures:
as shown in the attached drawings 1-2, the erosion-resistant cage type throttling valve core assembly comprises an inner cage sleeve 1, an outer cage sleeve 2, a sealing sleeve 3, an outer cage sleeve seat 4 and an extension sleeve 5, wherein the outer side of the upper part of the inner cage sleeve 1 is sleeved with the outer cage sleeve 2 positioned in the outer cage sleeve seat 4, the inner wall of the outer cage sleeve 2 is in sliding sealing contact with the outer wall of the inner cage sleeve 1, the lower end of the outer cage sleeve 2 is provided with a first chamfer 6, the first chamfer 6 is 40-50 degrees, an upper orifice group and a lower orifice group are arranged on the inner cage sleeve 1 corresponding to the position of the outer cage sleeve 2 in a penetrating way, the upper orifice group comprises two oppositely arranged upper orifices 7, the lower orifice group comprises two oppositely arranged lower orifices 8, the aperture of the upper orifices 7 is larger than the aperture of the lower orifices 8, the outer side of the lower orifices 3 are sleeved on the lower part of the inner cage sleeve 1, the inner wall of the sealing sleeve 3 is in sealing contact with the outer wall of the inner cage sleeve 1 in a sealing way, the lower side of the inner cage sleeve 1 is provided with the extension sleeve 5, the inner diameter of the inner cage sleeve 1 is equal to the inner diameter of the extension sleeve 5, and the upper end faces of the sealing sleeve 1 and the lower end faces of the lower orifices 3 are both the upper end faces of the extension sleeve 5 are arranged on the upper end faces of the extension sleeve 5.
When the throttle valve is used, the throttle valve is arranged in a valve body 10 of the throttle valve, a valve cavity 11 is formed in the valve body 10, a transverse inlet channel 12 communicated with the valve cavity 11 is formed in the left side of the valve body 10, a vertical outlet channel 13 communicated with the valve cavity 11 is formed in the bottom of the valve body 10, the lower end face of the extension bush 5 is arranged on the bottom wall of the valve cavity 11 during installation, the lower end of the extension bush 5 is communicated with the upper end of the air outlet channel, the outer wall of the sealing sleeve 3 is in sealing contact with the inner wall of the valve cavity 11, a valve rod 14 is arranged at the top of the outer cage seat 4, and certain included angles are formed between the central axes of the upper throttle hole 7 and the lower throttle hole 8 and the central axis of the inlet channel 12 and are larger than 15 degrees; when the throttle valve is in a fully opened state, the valve rod 14 drives the outer cage 2 to move upwards relative to the inner cage 1, so that the upper throttle hole 7 and the lower throttle hole 8 are fully opened, and when the throttle valve needs to throttle, the valve rod 14 drives the outer cage 2 to move downwards relative to the inner cage 1, so that the overflow area of the upper throttle hole 7 and the lower throttle hole 8 is reduced, and the throttle valve is throttled, and the lower end of the outer cage 2 is provided with a first chamfer 6, the central axes of the upper throttle hole 7 and the lower throttle hole 8 and the central axis of the air inlet channel form a certain included angle, high-speed fluid entering from the inlet channel 12 can collide and dissipate energy in a ring cavity formed between the outer wall of the inner cage 1 and the inner wall of the valve cavity 11, so that the erosion of the high-speed fluid to the inner cage 1 is reduced, the erosion resistance of the whole throttle valve core assembly is improved, in addition, the high-speed fluid entering the inner cage 1 through the two upper throttle holes 7 can collide and dissipate energy, the high-speed fluid entering the inner cage 1 through the two lower orifices 8 can collide and dissipate energy, so that erosion to the inner cage 1 is further reduced, the erosion resistance of the outlet is further improved through the arrangement of the extension bush 5, and the purpose of accurate throttling of small flow is achieved through the arrangement that the aperture of the upper orifice 7 is larger than that of the lower orifice 8, specifically, in the embodiment, the first chamfer 6 is 45 degrees.
The above embodiments may be further optimized and/or modified according to practical needs:
Preferably, the upper orifice 7 has a bore diameter of 35mm to 40mm and the lower orifice 8 has a bore diameter of 10mm to 15mm. Specifically, in the present embodiment, the aperture of the upper orifice 7 is 38mm, and the aperture of the lower orifice 8 is 12mm.
Specifically, the central axis of the upper orifice 7 is parallel to the front-rear direction and intersects the central axis of the inner cage 1, and the central axis of the lower orifice 8 is parallel to the left-right direction and intersects the central axis of the inner cage 1. Therefore, the upper throttle hole 7 is perpendicular to the lower throttle hole 8, the central angles of the upper throttle hole 7 and the lower throttle hole 8 are 90 degrees, and when the valve is arranged in the valve body 10, the included angles between the central axes of the upper throttle hole 7, the lower throttle hole 8 and the central axis of the inlet channel 12 are 45 degrees, so that the high-speed fluid is more beneficial to collision energy dissipation in a ring cavity formed between the outer wall of the inner cage 1 and the inner wall of the valve cavity 11.
The inner cage 1 and the extension bush 5 are both made of tungsten carbide alloy. The hardness of the inner cage 1 and the extension bush 5 is high, and the impact toughness is good.
As shown in fig. 1-2, the lower end of the outer cage seat 4 is higher than the first chamfer 6, and the lower end of the outer cage seat 4 is provided with a second chamfer 9, wherein the second chamfer 9 is 40-50 degrees. By providing the second chamfer 9, it is thereby more advantageous for the high-speed fluid to collide and dissipate energy in the annular cavity formed between the outer wall of the inner cage 1 and the inner wall of the valve chamber 11, in particular in this embodiment the second chamfer 9 is 45 °.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (9)
1. The anti-erosion cage type throttling valve core assembly is characterized by comprising an inner cage sleeve, an outer cage sleeve, a sealing sleeve, an outer cage sleeve seat and an extension bush, wherein the outer side of the upper part of the inner cage sleeve is sleeved with the outer cage sleeve positioned in the outer cage sleeve seat, the inner wall of the outer cage sleeve is in sliding sealing contact with the outer wall of the inner cage sleeve, the lower end of the outer cage sleeve is provided with a first chamfer angle which is 40-50 degrees, an upper orifice group and a lower orifice group are arranged on the inner cage sleeve corresponding to the position of the outer cage sleeve in a penetrating way, the upper orifice group comprises two upper orifices which are oppositely arranged, the lower orifice group comprises two lower orifices which are oppositely arranged, the aperture of each upper orifice is larger than that of each lower orifice, the outer side of the lower part of the inner cage sleeve is sleeved with the sealing sleeve, the inner wall of the sealing sleeve is in sealing contact with the outer wall of the inner cage sleeve in a sealing way, the lower side of the inner cage sleeve is provided with the extension bush, the inner diameter of the inner cage sleeve is equal to the inner diameter of the extension bush, and the lower end faces of the inner cage sleeve and the sealing sleeve are both seated on the upper end faces of the extension bush.
2. The erosion resistant cage-type choke plug assembly of claim 1, wherein the upper orifice has a bore diameter of 35mm to 40mm and the lower orifice has a bore diameter of 10mm to 15mm.
3. The erosion resistant cage-style choke valve assembly of claim 2, wherein the upper orifice has a bore diameter of 38mm and the lower orifice has a bore diameter of 12mm.
4. The erosion resistant cage-type throttle valve core assembly as set forth in claim 1, 2 or 3, wherein the central axis of the upper orifice is parallel to the front-rear direction and intersects the central axis of the inner cage, and the central axis of the lower orifice is parallel to the left-right direction and intersects the central axis of the inner cage.
5. The erosion resistant cage-type choke valve assembly of claim 1, 2 or 3, wherein the inner cage and the extension sleeve are both tungsten carbide alloy.
6. The erosion resistant cage type choke valve assembly of claim 4, wherein the inner cage and the extension sleeve are both tungsten carbide alloy.
7. The erosion resistant cage-type choke valve assembly of claim 1 or 2 or 3 or 6, wherein the lower end of the outer cage seat is higher than the first chamfer, and the lower end of the outer cage seat is provided with a second chamfer which is 40 ° to 50 °.
8. The erosion resistant cage type choke valve assembly of claim 4, wherein the lower end of the outer cage seat is higher than the first chamfer, and the lower end of the outer cage seat is provided with a second chamfer which is 40 ° to 50 °.
9. The erosion resistant cage type choke valve assembly of claim 5, wherein the lower end of the outer cage seat is higher than the first chamfer, and the lower end of the outer cage seat is provided with a second chamfer which is 40 ° to 50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311376000.7A CN119878838A (en) | 2023-10-23 | 2023-10-23 | Erosion-resistant cage-type throttling valve core assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311376000.7A CN119878838A (en) | 2023-10-23 | 2023-10-23 | Erosion-resistant cage-type throttling valve core assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119878838A true CN119878838A (en) | 2025-04-25 |
Family
ID=95428762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311376000.7A Pending CN119878838A (en) | 2023-10-23 | 2023-10-23 | Erosion-resistant cage-type throttling valve core assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119878838A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671596U (en) * | 2010-05-31 | 2010-12-15 | 刘子良 | Outer sleeve corbula-type throttle valve |
| CN203130038U (en) * | 2013-03-26 | 2013-08-14 | 纽威石油设备（苏州）有限公司 | 20000 psi cage-type throttle valve |
| CN204610897U (en) * | 2014-12-31 | 2015-09-02 | 美钻石油钻采系统工程（上海）有限公司 | Electric throttle valve |
| CN111550565A (en) * | 2019-02-08 | 2020-08-18 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system equipped with the same |
-
2023
- 2023-10-23 CN CN202311376000.7A patent/CN119878838A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201671596U (en) * | 2010-05-31 | 2010-12-15 | 刘子良 | Outer sleeve corbula-type throttle valve |
| CN203130038U (en) * | 2013-03-26 | 2013-08-14 | 纽威石油设备（苏州）有限公司 | 20000 psi cage-type throttle valve |
| CN204610897U (en) * | 2014-12-31 | 2015-09-02 | 美钻石油钻采系统工程（上海）有限公司 | Electric throttle valve |
| CN111550565A (en) * | 2019-02-08 | 2020-08-18 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system equipped with the same |
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