CN111503361B - Anti-scouring ball valve - Google Patents
Anti-scouring ball valve Download PDFInfo
- Publication number
- CN111503361B CN111503361B CN202010389665.1A CN202010389665A CN111503361B CN 111503361 B CN111503361 B CN 111503361B CN 202010389665 A CN202010389665 A CN 202010389665A CN 111503361 B CN111503361 B CN 111503361B
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- sleeve
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- driving
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
Abstract
The invention discloses an anti-scouring ball valve, which comprises a valve body, a valve cover, a ball body and a valve rod, and is characterized in that: the lower part of the valve rod is sleeved with a driving sleeve which can axially move and circumferentially transmit, the upper end of the driving sleeve is provided with a return spring, and the lower end of the driving sleeve is provided with a lifting driving structure; an inner sleeve is arranged at the upper end of the ball body, the inner sleeve is rotatably sleeved at the lower part of the driving sleeve, an outer sleeve is rotatably sleeved at the upper part of the driving sleeve, the lower part of the outer sleeve is positioned outside the inner sleeve, a connecting plate which is horizontally arranged is arranged at the lower end of the outer sleeve, a left partition plate and a right partition plate are respectively arranged at the left side and the right side of the connecting plate, and a left partition plate 3 and a right partition plate 29 can rotatably enter and cut off medium channels at the two sides of the ball body; the driving sleeve rotates clockwise for a circle and can be sequentially linked with the inner sleeve to open the ball body, the outer sleeve to open the left and right partition plates 3 and 29, the outer sleeve to close the left and right partition plates 3 and 29 and the inner sleeve to close the ball body. The invention realizes that the surface of the valve seat is not washed by high-pressure medium, avoids the leakage of the valve and prolongs the service life.
Description
Technical Field
The invention relates to an improved ball valve, in particular to an improved anti-scouring ball valve.
Background
The ball valve is by extensive application in trades such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel, and current ball valve, at the in-process that the spheroid was opened and is closed, partial disk seat can break away from the spheroid surface, and the medium of ball valve import side can flow to the ball valve outlet side through the clearance between the sealed face of disk seat and the spheroid surface, and the flow of medium, especially the high-speed medium of high pressure can erode the disk seat surface to destroy the disk seat, lead to the valve to leak, life is short.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides an anti-scouring ball valve which is free of leakage and long in service life.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme: this kind of scour prevention ball valve, including valve body, valve gap, spheroid and valve rod, the spheroid rotates to set up in the medium passage of valve body, and be equipped with in the valve body with the left and right valve seat of spheroid seal complex, the valve rod rotates to wear to establish in the valve gap, the valve rod upper end is connected with spanner, its characterized in that: the lower part of the valve rod is sleeved with a driving sleeve which can axially move and circumferentially transmit, the upper end of the driving sleeve is provided with a return spring, and the lower end of the driving sleeve is provided with a lifting driving structure; the upper end of the ball body is provided with an inner sleeve, the inner sleeve is rotatably sleeved on the lower part of the driving sleeve, an outer sleeve is rotatably sleeved on the upper part of the driving sleeve, the lower part of the outer sleeve is positioned outside the inner sleeve, the upper end of the outer sleeve is abutted to a positioning block, the positioning block is fixedly arranged in the valve cover, the corresponding driving sleeve and the valve rod penetrate through the positioning block, the lower end of the outer sleeve is provided with a horizontally arranged connecting plate, the left side and the right side of the connecting plate are respectively provided with a left partition plate and a right partition plate, and the left partition plate and the right partition plate can rotatably enter and cut off medium channels on the two sides of the ball body; the driving sleeve rotates clockwise for a circle and can be sequentially linked with the inner sleeve to open the ball body, the outer sleeve to open the left and right partition plates, the outer sleeve to close the left and right partition plates and the inner sleeve to close the ball body.
The lifting driving structure is a guide head arranged at the lower end of the driving sleeve, a guide block is arranged at the upper end of a corresponding ball body, a circle of lifting surface is arranged on the guide block, the lifting surface is divided into a lower platform, a first inclined surface, an upper platform and a second inclined surface which are sequentially connected in four parts, and the guide head is abutted against the lifting surface of the guide block.
The driving sleeve is provided with a lower key at the periphery, two groups of lower key grooves which are centrosymmetric are arranged on the inner wall of the upper end of the corresponding inner sleeve, two groups of middle key grooves which are centrosymmetric are arranged on the inner wall of the lower end of the outer sleeve, when the guide head is matched with the lower platform of the guide block and the first inclined surface, the lower key is in transmission fit with the lower key grooves, when the guide head is matched with the upper platform of the guide block and the second inclined surface, the lower key is in transmission fit with the middle key grooves, when the guide head moves to the highest end of the first inclined surface, the lower key enters the adjacent middle key grooves from the lower key grooves, and when the guide head moves to the lowest end of the second inclined surface, the lower key enters the adjacent lower key grooves from the middle key grooves.
The outer sleeve is provided with an upper switching block which leads the abdicating lower key to enter the adjacent middle key groove from the lower key groove, the upper switching block can move up and down and is arranged in an upper groove on the inner wall of the outer sleeve, the upper groove is communicated with the middle key groove in the circumferential direction, and an upper switching spring is arranged between the upper switching block and the upper groove wall of the upper groove.
The inner sleeve is provided with a lower switching block for allowing the lower key to enter the adjacent lower key groove from the middle key groove, the lower switching block can move up and down and is arranged in the lower groove of the inner wall of the inner sleeve, the lower groove is communicated with the lower key groove in the circumferential direction, and a lower switching spring is arranged between the lower switching block and the lower groove wall of the lower groove.
The valve rod is provided with an upper key, the inner wall of the corresponding driving sleeve is provided with an upper key groove, the upper key is in circumferential transmission fit with the upper key groove, and the upper key groove can axially and relatively move.
The upper end of the driving sleeve is provided with an inner top cover, the upper part of the valve rod is provided with a spring seat, the upper part of the valve rod is sleeved with a corresponding return spring, the upper end of the return spring is abutted against the spring seat, and the lower end of the return spring is abutted against the inner top cover.
The improved anti-scouring ball valve has the beneficial effects that the left and right partition plates are arranged in the corresponding medium channels at the two sides of the ball body, so that no medium flows to the outlet side through the gap between the outer surface of the ball body and the sealing surface of the valve seat in the opening or closing process of the ball body, the sealing surface of the valve seat is not scoured by the medium, the service life of the valve seat is effectively prolonged, and the service life of the valve is prolonged.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic view of the valve closure structure of the present invention.
Fig. 2 is a schematic view of the valve opening structure of the present invention.
Fig. 3 is a cross-sectional view D-D of fig. 1 of the present invention.
Fig. 4 is a cross-sectional view E-E of fig. 1 of the present invention.
Fig. 5 is a schematic structural diagram of the guide block of the present invention.
Fig. 6 is a view of the invention from the direction C of fig. 5.
Detailed Description
The drawings show the structure of the invention, and the details thereof are further described below with reference to the drawings. The anti-scouring ball valve comprises a valve body 1, a valve cover 6, a ball body 4 and a valve rod 20, wherein the ball body 4 is rotatably arranged in a medium channel of the valve body 1, a rotating fulcrum 31 is arranged between the lower end of the corresponding ball body 4 and the medium channel, left and right valve seats 2 and 30 which are in sealing fit with the ball body 4 are arranged in the valve body 1, the valve rod 20 is rotatably arranged in the valve cover 6 in a penetrating manner, a packing 17 and a gland 18 for sealing the packing 17 are arranged between the valve rod 20 and the upper end of the valve cover 6, the upper end of the valve rod 20 is connected with a wrench 19, a driving sleeve 22 which can axially move and circumferentially transmit is sleeved at the lower part of the valve rod 20, a reset spring 16 is arranged at the upper end of the driving sleeve 22 and used for resetting the axial position of the driving sleeve 22, and a lifting driving structure is arranged at the lower end of the driving sleeve 22 and used for driving the driving sleeve 22 to move up and down; an inner sleeve 27 is arranged at the upper end of the sphere 4, the inner sleeve 27 is rotatably sleeved at the lower part of the driving sleeve 22, an outer sleeve 24 is rotatably sleeved at the upper part of the driving sleeve 22, the lower part of the outer sleeve 24 is positioned outside the inner sleeve 27, the upper end of the outer sleeve 24 is abutted against a positioning block 21, the positioning block 21 is fixedly arranged in the valve cover 6, the corresponding driving sleeve 22 and the valve rod 20 penetrate through the positioning block 21, a connecting plate 5 which is horizontally arranged is arranged at the lower end of the outer sleeve 24, a left partition plate 3 and a right partition plate 29 are respectively arranged at the left side and the right side of the connecting plate 5, the left partition plate 3, the right partition plate 29 and the connecting plate 5 can rotate 360 degrees along with the outer sleeve 24, a bearing 28 is further arranged between the connecting plate 5 and the upper end of the sphere 4, and the left partition plate 3 and the right partition plate 29 can rotatably enter and cut off medium channels at the two sides of the sphere 4; the driving sleeve 22 rotates clockwise for a circle, and can sequentially open the ball 4 in linkage with the inner sleeve 27, open the left and right partition plates in linkage with the outer sleeve 24, close the left and right partition plates in linkage with the outer sleeve 24, and close the ball 4 in linkage with the inner sleeve 27, the opening or closing of the ball 4 respectively requires the driving sleeve 22 to rotate by 90 degrees, the opening or closing of the left and right partition plates 3 and 29 also respectively requires the driving sleeve 22 to rotate by 90 degrees, namely, the driving sleeve 22 can sequentially drive the opening ball 4, the opening of the left and right partition plates, the closing of the left and right partition plates, and the closing of the ball 4 every time the driving sleeve 22 rotates clockwise by 90 degrees.
The lifting driving structure is a guide head 8 arranged at the lower end of the driving sleeve 22, a guide block 7 is arranged at the upper end of the corresponding ball 4, a circle of lift surface is arranged on the guide block 7, the lift surface is divided into a lower platform 33, a first inclined surface 34, an upper platform 35 and a second inclined surface 36 which are sequentially connected in a quartering mode, the guide head 8 abuts against the lift surface of the guide block 7, and particularly, when the guide head 8 moves along the lower plane of the guide block 7, the driving sleeve 22 is in low-position horizontal rotation; when the guide head 8 moves along the first inclined surface 34 of the guide block 7, the driving sleeve 22 rotates from a low position to a high position; when the guide head 8 moves along the upper plane of the guide block 7, the driving sleeve 22 horizontally rotates at a high position; when the guide head 8 moves along the second inclined surface 36 of the guide block 7, the driving sleeve 22 rotates from the high position to the low position.
The periphery of the driving sleeve 22 is provided with a lower key 10, the inner wall of the upper end of the corresponding inner sleeve 27 is provided with two groups of lower key grooves 9 which are centrosymmetric, the inner wall of the lower end of the outer sleeve 24 is provided with two groups of middle key grooves 23 which are centrosymmetric, when the guide head 8 is matched with the lower platform 33 and the first inclined surface 34 of the guide block 7, the lower key 10 is in transmission fit with the lower key grooves 9, when the guide head 8 is matched with the upper platform 35 and the second inclined surface 36 of the guide block 7, the lower key 10 is in transmission fit with the middle key grooves 23, and when the guide head 8 moves to the highest end of the first inclined surface 34, the lower key 10 enters the adjacent middle key grooves 23 from the lower key grooves 9, at this time, the middle key grooves 23 are positioned right above the lower key grooves 9, when the guide head 8 moves to the lowest end of the second inclined surface 36, the lower key 10 enters the adjacent lower key grooves 9 from the middle key grooves 23, and at this time, the middle key grooves 23 are positioned right above the lower key grooves 9. Wherein, two sets of key ways 23 in key way 9 and two sets of key ways in the lower are mutually alternate to cooperate and link up.
The outer sleeve 24 is provided with upper switching blocks 11 which enable the lower keys 10 to enter the adjacent middle keyways 23 from the lower keyways 9, the upper switching blocks 11 are provided with two groups of centrosymmetric blocks, the upper switching blocks 11 can be vertically moved and arranged in upper grooves in the inner wall of the outer sleeve 24, the upper grooves are circumferentially communicated with the middle keyways 23, and upper switching springs 12 are arranged between the upper switching blocks 11 and the upper groove walls of the upper grooves, so that in the process that the lower keys 10 are in transmission fit with the lower keyways 9, the lower keys 10 are gradually separated from the lower keyways 9 and extrude the upper switching blocks 11 until the lower keys 10 enter the adjacent middle keyways 23.
The inner sleeve 27 is provided with the lower switching blocks 25 which enable the yielding lower keys 10 to enter the adjacent lower key grooves 9 from the middle key groove 23, the lower switching blocks 25 are provided with two groups which are centrosymmetric, the lower switching blocks 25 can be vertically moved and arranged in the lower grooves in the inner wall of the inner sleeve 27, the lower grooves are circumferentially communicated with the lower key grooves 9, the lower switching springs 26 are arranged between the lower switching blocks 25 and the lower groove walls of the lower grooves, and in the process that the lower keys 10 are in transmission fit with the middle key grooves 23, the lower keys 10 are gradually separated from the middle key grooves 23 and press the lower switching blocks 25 until the lower keys 10 enter the adjacent lower key grooves 9.
The upper key 14 is arranged on the valve rod 20, the upper key groove 13 is arranged on the inner wall of the corresponding driving sleeve 22, the upper key 14 is in circumferential transmission fit with the upper key groove 13, and the upper key 14 and the upper key groove 13 can axially and relatively move, so that the driving sleeve 22 can move up and down in the process of driving the driving sleeve 22 to rotate by the valve rod 20.
The upper end of the driving sleeve 22 is provided with an inner top cover 15, the upper part of the valve rod 20 is provided with a spring seat 32, the upper part of the valve rod 20 is sleeved with a corresponding return spring 16, the upper end of the return spring 16 abuts against the spring seat 32, and the lower end of the return spring 16 abuts against the inner top cover 15.
The starting process of the invention is as follows: the wrench 19 is rotated clockwise to drive the valve rod 20 and the driving sleeve 22 to rotate clockwise, the guide head 8 rotates and moves upwards along the first inclined surface 34, the lower key 10 drives the inner sleeve 27 to rotate clockwise, the lower key 10 rotates and moves upwards along with the driving sleeve 22, the lower key 10 simultaneously pushes the upper switching block 11 to move upwards, the driving sleeve 22 drives the ball 4 to open at the moment, when the wrench 19 rotates 90 degrees, the guide head 8 reaches the highest end of the first inclined surface 34 and enters the upper platform 35, the driving sleeve 22 drives the ball 4 to be completely opened, the lower key 10 enters the middle key groove 23 at the moment, the lower key groove 9 is arranged right below the middle key groove 23, and the upper switching block 11 returns to the original position under the action of the upper switching spring 12; the wrench continues to rotate clockwise by 90 degrees, the driving sleeve 22 is driven to rotate, then the outer sleeve 24, the connecting plate 5, the left partition plate and the right partition plate are driven to rotate clockwise by 90 degrees to open the medium channels corresponding to the two sides of the ball 4, the valve is completely opened, and at this moment, the guide head 8 rotates clockwise by 90 degrees along the upper platform 35. In the opening process, no medium flows to the outlet side through the gap between the outer surface of the ball 4 and the sealing surface of the valve seat, and the sealing surface of the valve seat is not washed by the medium;
and (3) closing process: the wrench 19 is rotated clockwise to drive the valve rod 20 and the driving sleeve 22 to rotate clockwise, the guiding head 8 rotates along the second inclined surface 36 and moves downwards, the lower key 10 drives the outer sleeve 24 to rotate clockwise, the lower key 10 rotates and moves downwards along with the driving sleeve 22, the lower key 10 simultaneously pushes the lower switching block 25 to move downwards, the outer sleeve 24 drives the connecting plate 5, the left clapboard and the right clapboard to rotate clockwise by 90 degrees to close the medium channels corresponding to the two sides of the sphere 4, at this time, the guide head 8 reaches the lowest end of the second inclined surface 36 and enters the lower platform 33, the lower key 10 enters the lower key groove 9, the middle key groove 23 is arranged right above the lower key groove 9, the lower switching block 25 recovers to the original position under the action of the lower switching spring 26, the wrench continues to rotate by 90 degrees to drive the driving sleeve 22, the inner sleeve 27 and the ball 4 to rotate by 90 degrees and close, the valve is completely closed, and at the moment, the guide head 8 rotates by 90 degrees clockwise along the lower platform 33. In the closing process, no medium flows to the outlet side through the gap between the outer surface of the ball 4 and the valve seat sealing surface, and the valve seat sealing surface is not washed by the medium.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides an anti-scouring ball valve, includes valve body, valve gap, spheroid and valve rod, the spheroid rotates to set up in the medium passage of valve body, and be equipped with in the valve body with the left and right valve seat of spheroid seal complex, the valve rod rotates to wear to establish in the valve gap, the valve rod upper end is connected with spanner, its characterized in that: the lower part of the valve rod is sleeved with a driving sleeve which can axially move and circumferentially transmit, the upper end of the driving sleeve is provided with a return spring, and the lower end of the driving sleeve is provided with a lifting driving structure; the upper end of the ball body is provided with an inner sleeve, the inner sleeve is rotatably sleeved on the lower part of the driving sleeve, an outer sleeve is rotatably sleeved on the upper part of the driving sleeve, the lower part of the outer sleeve is positioned outside the inner sleeve, the upper end of the outer sleeve is abutted to a positioning block, the positioning block is fixedly arranged in the valve cover, the corresponding driving sleeve and the valve rod penetrate through the positioning block, the lower end of the outer sleeve is provided with a horizontally arranged connecting plate, the left side and the right side of the connecting plate are respectively provided with a left partition plate and a right partition plate, and the left partition plate and the right partition plate can rotatably enter and cut off medium channels on the two sides of the ball body; the driving sleeve rotates clockwise for a circle and can be sequentially linked with the inner sleeve to open the ball body, the outer sleeve to open the left and right partition plates, the outer sleeve to close the left and right partition plates and the inner sleeve to close the ball body; the lifting driving structure is a guide head arranged at the lower end of the driving sleeve, a guide block is arranged at the upper end of a corresponding ball body, a circle of lifting surface is arranged on the guide block, the lifting surface is divided into a lower platform, a first inclined surface, an upper platform and a second inclined surface which are sequentially connected in a quartering mode, and the guide head abuts against the lifting surface of the guide block; the driving sleeve is provided with a lower key at the periphery, two groups of lower key grooves which are centrosymmetric are arranged on the inner wall of the upper end of the corresponding inner sleeve, two groups of middle key grooves which are centrosymmetric are arranged on the inner wall of the lower end of the outer sleeve, when the guide head is matched with the lower platform of the guide block and the first inclined surface, the lower key is in transmission fit with the lower key grooves, when the guide head is matched with the upper platform of the guide block and the second inclined surface, the lower key is in transmission fit with the middle key grooves, when the guide head moves to the highest end of the first inclined surface, the lower key enters the adjacent middle key grooves from the lower key grooves, and when the guide head moves to the lowest end of the second inclined surface, the lower key enters the adjacent lower key grooves from the middle key grooves.
2. An anti-scour ball valve as claimed in claim 1, wherein: the outer sleeve is provided with an upper switching block which leads the abdicating lower key to enter the adjacent middle key groove from the lower key groove, the upper switching block can move up and down and is arranged in an upper groove on the inner wall of the outer sleeve, the upper groove is communicated with the middle key groove in the circumferential direction, and an upper switching spring is arranged between the upper switching block and the upper groove wall of the upper groove.
3. An anti-scour ball valve as claimed in claim 1, wherein: the inner sleeve is provided with a lower switching block for allowing the lower key to enter the adjacent lower key groove from the middle key groove, the lower switching block can move up and down and is arranged in the lower groove of the inner wall of the inner sleeve, the lower groove is communicated with the lower key groove in the circumferential direction, and a lower switching spring is arranged between the lower switching block and the lower groove wall of the lower groove.
4. An anti-scour ball valve as claimed in claim 1, wherein: the valve rod is provided with an upper key, the inner wall of the corresponding driving sleeve is provided with an upper key groove, the upper key is in circumferential transmission fit with the upper key groove, and the upper key groove can axially and relatively move.
5. An anti-scour ball valve as claimed in claim 1, wherein: the upper end of the driving sleeve is provided with an inner top cover, the upper part of the valve rod is provided with a spring seat, the upper part of the valve rod is sleeved with a corresponding return spring, the upper end of the return spring is abutted against the spring seat, and the lower end of the return spring is abutted against the inner top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010389665.1A CN111503361B (en) | 2020-05-11 | 2020-05-11 | Anti-scouring ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010389665.1A CN111503361B (en) | 2020-05-11 | 2020-05-11 | Anti-scouring ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111503361A CN111503361A (en) | 2020-08-07 |
| CN111503361B true CN111503361B (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010389665.1A Active CN111503361B (en) | 2020-05-11 | 2020-05-11 | Anti-scouring ball valve |
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| Country | Link |
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| CN (1) | CN111503361B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776683A (en) * | 2021-09-15 | 2021-12-10 | 安徽春辉仪表线缆集团有限公司 | Waterproof armored thermocouple |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11325311A (en) * | 1998-05-08 | 1999-11-26 | Toshiba Corp | Inlet valve, and self-excited vibration preventing method |
| CN206377297U (en) * | 2017-01-20 | 2017-08-04 | 广东明珠流体机械有限公司 | A kind of linear metal seals powder conveyor ball valve |
| CN108692054A (en) * | 2018-05-24 | 2018-10-23 | 李祥庆 | A kind of valve seat protection against erosion ball valve |
| CN109838578A (en) * | 2019-02-25 | 2019-06-04 | 河南三和水工机械有限公司 | A kind of environment-friendly type facilities of mix storied building reliability pipe controller |
| WO2020086945A1 (en) * | 2018-10-26 | 2020-04-30 | Fisher Controls International Llc | Flow conditioner for a valve assembly |
-
2020
- 2020-05-11 CN CN202010389665.1A patent/CN111503361B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11325311A (en) * | 1998-05-08 | 1999-11-26 | Toshiba Corp | Inlet valve, and self-excited vibration preventing method |
| CN206377297U (en) * | 2017-01-20 | 2017-08-04 | 广东明珠流体机械有限公司 | A kind of linear metal seals powder conveyor ball valve |
| CN108692054A (en) * | 2018-05-24 | 2018-10-23 | 李祥庆 | A kind of valve seat protection against erosion ball valve |
| WO2020086945A1 (en) * | 2018-10-26 | 2020-04-30 | Fisher Controls International Llc | Flow conditioner for a valve assembly |
| CN109838578A (en) * | 2019-02-25 | 2019-06-04 | 河南三和水工机械有限公司 | A kind of environment-friendly type facilities of mix storied building reliability pipe controller |
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| CN111503361A (en) | 2020-08-07 |
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Effective date of registration: 20211118 Address after: 317600 Qing Gang Zhen Yan Ye Cun, Yuhuan City, Taizhou City, Zhejiang Province Applicant after: Zhejiang Qinghao Copper Co.,Ltd. Address before: No.63, Maidao North Road, Maidao village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province Applicant before: Yongjia Qida Intellectual Property Consulting Co.,Ltd. |
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