CN110608291B - Butterfly valve with sealing protection structure - Google Patents
Butterfly valve with sealing protection structure Download PDFInfo
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- CN110608291B CN110608291B CN201910821476.4A CN201910821476A CN110608291B CN 110608291 B CN110608291 B CN 110608291B CN 201910821476 A CN201910821476 A CN 201910821476A CN 110608291 B CN110608291 B CN 110608291B
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- valve plate
- valve
- protection seat
- rotating shaft
- cavity
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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
- F16K1/16—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 with pivoted closure-members
- F16K1/18—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 with pivoted closure-members with pivoted discs or flaps
- F16K1/22—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 with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/228—Movable sealing bodies
- F16K1/2285—Movable sealing bodies the movement being caused by the flowing medium
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a butterfly valve with a sealing protection structure, which comprises a butterfly valve body, a valve rod and a valve plate, wherein a soft sealing layer is arranged on the side edge of the valve plate, a protection seat is fixedly connected to the right end of the valve plate, the left side surface of the protection seat is of an arc structure, a strip-shaped elastic air bag is fixedly attached to the surface of the arc structure, a horizontal water inlet hole is formed in the right side surface of the protection seat, the water inlet hole is communicated with an obliquely arranged water outlet groove, the lower end of the water outlet groove is positioned at the bottom of the protection seat, and a transmission mechanism matched with the strip-shaped elastic air bag is further arranged inside the protection seat. The soft sealing layer at the side edge of the valve plate can be automatically attached and protected when the valve plate is opened, and the valve plate is prevented from being washed away by the front side of a fluid medium for a long time, so that the sealing effect of the valve plate and the soft sealing layer is protected, and the service life of the whole valve is greatly prolonged; and the forced shutdown caused by medium leakage can be reduced, thereby improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a butterfly valve with a sealing protection structure.
Background
Butterfly valves are valves frequently used in fluid medium conveying pipelines. When the existing butterfly valve is in an open state, the soft sealing layer on the side edge of the valve plate close to the fluid medium input end is continuously washed by the conveyed medium, and the soft sealing layer of the valve plate is damaged due to long-term front washing, so that the service life of the valve is shortened; and the medium leakage can be caused after the valve sealing is failed, and the potential safety hazard can cause the production to be forced to stop, thereby reducing the production efficiency.
To this end, we propose a butterfly valve with a seal protection structure.
Disclosure of Invention
The invention aims to solve the problems that when a butterfly valve in the prior art is in an open state, a soft sealing layer on the side edge of a valve plate close to a fluid medium input end is continuously washed by a conveyed medium, and the soft sealing layer of the valve plate is damaged due to long-term frontal washing, so that the service life of the valve is shortened.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a butterfly valve with sealed protection architecture, includes butterfly valve body, valve rod and valve plate, the side of valve plate is equipped with the soft sealing layer, the right-hand member rigid coupling of valve plate has the protection seat, the left surface of protection seat adopts the arc structure, and the fixed surface of arc structure pastes and is equipped with bar elasticity gasbag, a horizontally inlet opening has been seted up to the right flank of protection seat, the inlet opening intercommunication has the play basin that the slope set up, and goes out the bottom that the lower extreme of basin is located the protection seat, the inside drive mechanism that still is equipped with cooperation bar elasticity gasbag and uses of protection seat.
In the butterfly valve with the sealing protection structure, the transmission mechanism comprises a first rotating shaft which is rotatably connected with the inner side wall of the water outlet groove, two impellers are fixedly sleeved on the first rotating shaft, a mounting groove is also formed in the top wall of the water outlet groove, a baffle is fixedly connected with the opening of the mounting groove in a sealing manner, the center of the baffle is rotatably connected with a vertically arranged second rotating shaft in a penetrating manner, the first rotating shaft and the second rotating shaft are rotatably matched through a bevel gear set, a coil is fixedly connected to the upper end of the second rotating shaft, two magnets with opposite magnetism are symmetrically embedded in the side walls of the mounting groove positioned at two sides of the coil, two conductive seats which are matched with two ends of the coil are fixedly arranged on the side walls of the mounting groove, a cavity is further formed in the protection seat positioned right above the mounting groove, and an electric heating piece is hermetically and penetratively connected, and two conductive seats are electrically connected with the electric heating sheet through leads, low-boiling-point evaporating liquid is arranged at the inner bottom of the cavity, a piston slide block is connected to the inner wall of the cavity in a sealing and sliding manner, a reset spring is fixedly connected between the piston slide block and the bottom of the cavity, and the upper end of the cavity is communicated with the strip-shaped elastic air bag through an air duct.
Compared with the prior art, this butterfly valve with sealed protection architecture's advantage lies in: the transmission mechanism arranged in the protective seat is matched with the strip-shaped elastic air bag and the soft sealing layer on the side surface of the valve plate for use, and transmission is carried out by utilizing the conveying process of a fluid medium, so that the strip-shaped elastic air bag is automatically expanded after the valve plate is opened and is tightly attached to the soft sealing layer on the side edge of the valve plate, and the strip-shaped elastic air bag is prevented from being washed away by the front side of the fluid medium for a long time, thereby protecting the sealing effect of the valve plate and the soft sealing layer and greatly prolonging the; and the forced shutdown caused by medium leakage can be reduced, thereby improving the production efficiency.
Drawings
FIG. 1 is a schematic structural view of a butterfly valve plate seal protection device according to the present invention;
fig. 2 is an enlarged schematic view of a portion a in fig. 1.
In the figure: the automatic control valve comprises a butterfly valve body 1, a valve rod 2, a valve plate 3, a soft sealing layer 4, a protective seat 5, a strip-shaped elastic air bag 6, a water inlet hole 7, a water outlet groove 8, a first rotating shaft 9, an impeller 10, an installation groove 11, a partition plate 12, a second rotating shaft 13, a coil 14, a magnet 15, a conductive seat 16, a cavity 17, an electric heating plate 18, low-boiling-point evaporating liquid 19, a piston sliding block 20 and a return spring 21.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-2, a butterfly valve with a sealing protection structure comprises a butterfly valve body 1, a valve rod 2 and a valve plate 3, wherein a soft sealing layer 4 is arranged on the side edge of the valve plate 3, a protection seat 5 is fixedly connected to the right end of the valve plate 3, the left side surface of the protection seat 5 is of an arc structure, a strip-shaped elastic air bag 6 is fixedly attached to the surface of the arc structure, a horizontal water inlet hole 7 is formed in the right side surface of the protection seat 5, the water inlet hole 7 is communicated with an obliquely arranged water outlet groove 8, and the lower end of the water outlet groove 8 is located at the bottom of the protection seat 5;
the interior of the protection seat 5 is also provided with a transmission mechanism matched with the bar-shaped elastic air bag 6 for use, the transmission mechanism comprises a first rotating shaft 9 which is rotatably connected with the inner side wall of the water outlet groove 8, two impellers 10 are fixedly sleeved on the first rotating shaft 9, a mounting groove 11 is also formed in the top wall of the water outlet groove 8, a partition plate 12 is fixedly connected to the opening of the mounting groove 11 in a sealing manner, the center of the partition plate 12 is rotatably connected with a second rotating shaft 13 which is vertically arranged in a penetrating manner, a first bevel gear is fixedly sleeved at the middle part of the first rotating shaft 9, a second bevel gear is fixedly sleeved at the bottom end of the second rotating shaft; a framework oil seal is arranged at the penetrating and rotating connection position of the second rotating shaft 13 and the partition plate 12, so that the transmission medium is prevented from permeating into the mounting groove 11 while the rotation of the second rotating shaft 13 is not influenced;
the upper end of the second rotating shaft 13 is fixedly connected with a coil 14, two magnets 15 with opposite magnetism are symmetrically embedded on the side wall of the mounting groove 11 positioned at two sides of the coil 14, two conducting seats 16 matched with two ends of the coil 14 are fixedly mounted on the side wall of the mounting groove 11, and two ends of the coil 14 are always contacted with the two conducting seats 16 when rotating, a cavity 17 is further arranged inside the protection seat 5 positioned right above the mounting groove 11, an electric heating sheet 18 is hermetically and penetratingly connected between the bottom of the cavity 17 and the top of the mounting groove 11, the two conducting seats 16 are electrically connected with the electric heating sheet 18 through a lead, a low-boiling-point evaporated liquid 19 is arranged at the inner bottom of the cavity 17, the low-boiling-point evaporated liquid 18 adopts dichloromethane, the boiling point of which is 40 ℃, a piston slider 20 is also hermetically and slidably connected on the inner wall of the cavity 17, and a return spring 21 is, the upper end of the cavity 17 is also communicated with the strip-shaped elastic air bag 6 through an air duct.
When the invention is used, the flowing direction of the conveyed medium is shown in fig. 1, when the valve plate 1 is rotated and opened to the state shown in fig. 1, the flowing liquid medium enters the protective seat 5 through the water inlet 7 and flows out downwards through the water outlet groove 8, the impeller 10 can be driven to rotate continuously during the flowing process of the liquid medium, so as to drive the first rotating shaft 9 and the first bevel gear on the shaft to rotate, the first bevel gear can drive the second bevel gear meshed with the first bevel gear and the second rotating shaft 13 to rotate continuously, so that the second rotating shaft 13 can drive the coil 14 to rotate between the two magnets 15 to perform cutting magnetic induction line movement, according to the law of electromagnetic induction, induction current can be generated on the coil 14, the generated induction current is provided to the electric heating sheet 18 through the conducting wire by the conducting seat 16, the electric heating sheet 18 generates heat to evaporate the low boiling point evaporation liquid 19, the evaporated steam can push the piston slider 20 upwards, the piston sliding block 20 slides upwards to press air at the upper end of the cavity 17 into the strip-shaped elastic air bag 6, so that the strip-shaped elastic air bag 6 expands and is tightly attached to the soft sealing layer 4 on the side edge of the valve plate 3, the strip-shaped elastic air bag is prevented from being washed away by the front of a fluid medium, the sealing effect of the valve plate 3 and the soft sealing layer 4 is protected, the service life of the whole valve is prolonged, the condition of forced shutdown caused by medium leakage can be reduced, and the production efficiency is improved; after the valve plate 3 is rotated and closed, the fluid medium stops flowing, the impeller 10 does not rotate any more, the coil 14 does not rotate any more, so that the induced current disappears, the electric heating sheet 18 stops heating and then is cooled by steam and automatically liquefied, the piston slide block 20 slides downwards under the action of the reset force of the spring 21 to return to the original position, so that the gas in the strip-shaped elastic air bag 6 is pumped back, the strip-shaped elastic air bag 6 is restored to the initial state, and the process of opening the valve plate 3 next time cannot be influenced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (1)
1. A butterfly valve with a sealing protection structure comprises a butterfly valve body (1), a valve rod (2) and a valve plate (3), wherein a soft sealing layer (4) is arranged on the side edge of the valve plate (3), and the butterfly valve is characterized in that a protection seat (5) is fixedly connected to the right end of the valve plate (3), an arc-shaped structure is adopted on the left side face of the protection seat (5), a strip-shaped elastic air bag (6) is fixedly attached to the surface of the arc-shaped structure, a horizontal water inlet hole (7) is formed in the right side face of the protection seat (5), a water outlet groove (8) which is obliquely arranged is communicated with the water inlet hole (7), the lower end of the water outlet groove (8) is located at the bottom of the protection seat (5), a transmission mechanism which is matched with the strip-shaped elastic air bag (6) is further arranged inside the protection seat (5), and the transmission mechanism comprises a first rotating shaft (9) which is rotatably, the water outlet device is characterized in that two impellers (10) are fixedly sleeved on the first rotating shaft (9), a mounting groove (11) is further formed in the inner top wall of the water outlet groove (8), a partition plate (12) is fixedly connected to the opening of the mounting groove (11) in a sealed mode, the center of the partition plate (12) is connected with a second rotating shaft (13) which is vertically arranged in a penetrating mode in a rotating mode, the first rotating shaft (9) is in rotating fit with the second rotating shaft (13) through a bevel gear set, a coil (14) is fixedly connected to the upper end of the second rotating shaft (13), two magnets (15) with opposite magnetism are symmetrically embedded in the side wall of the mounting groove (11) located on the two sides of the coil (14), two conductive seats (16) matched with the two ends of the coil (14) are fixedly mounted on the side wall of the mounting groove (11), and a cavity (17) is further formed, sealed through connection has electric heating plate (18) between the bottom of cavity (17) and the top of mounting groove (11), and two electrically conductive seat (16) all are connected through wire and electric heating plate (18) electricity, the interior bottom of cavity (17) is equipped with low boiling evaporation liquid (19), it has piston slide block (20) to go back sealed sliding connection on the inner wall of cavity (17), and fixedly connected with reset spring (21) between piston slide block (20) and cavity (17) bottom, the upper end of cavity (17) still communicates through an air duct and bar elasticity gasbag (6).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821476.4A CN110608291B (en) | 2019-09-02 | 2019-09-02 | Butterfly valve with sealing protection structure |
| CN202011143018.9A CN112268119A (en) | 2019-09-02 | 2019-09-02 | Butterfly valve with sealing protection structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821476.4A CN110608291B (en) | 2019-09-02 | 2019-09-02 | Butterfly valve with sealing protection structure |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011143018.9A Division CN112268119A (en) | 2019-09-02 | 2019-09-02 | Butterfly valve with sealing protection structure and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110608291A CN110608291A (en) | 2019-12-24 |
| CN110608291B true CN110608291B (en) | 2021-01-01 |
Family
ID=68891166
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910821476.4A Active CN110608291B (en) | 2019-09-02 | 2019-09-02 | Butterfly valve with sealing protection structure |
| CN202011143018.9A Withdrawn CN112268119A (en) | 2019-09-02 | 2019-09-02 | Butterfly valve with sealing protection structure and method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011143018.9A Withdrawn CN112268119A (en) | 2019-09-02 | 2019-09-02 | Butterfly valve with sealing protection structure and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110608291B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279750A (en) * | 2020-02-19 | 2021-08-20 | 中国石油天然气股份有限公司 | Oil well sampling pressure-holding prevention device and oil well sampling system |
| CN113280133B (en) * | 2021-07-23 | 2021-09-24 | 山东泰恒智能环境科技有限公司 | High barrier propterty butterfly valve |
| CN114481335B (en) * | 2021-12-17 | 2023-06-27 | 桐昆集团浙江恒通化纤有限公司 | High-strength sun-resistant anti-aging polyester pre-oriented yarn for curtain and preparation method thereof |
| CN114962665B (en) * | 2022-07-31 | 2022-12-09 | 常州兰控阀门控制有限公司 | Waterproof type valve electric actuator |
| CN117704081B (en) * | 2024-02-05 | 2024-04-09 | 四川顺腾机械制造有限公司 | High-pressure pneumatic execution valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5103858A (en) * | 1990-05-05 | 1992-04-14 | Rolls-Royce Plc | Valve and an atomization chamber |
| CN201714999U (en) * | 2010-06-18 | 2011-01-19 | 慎江阀门有限公司 | Butterfly valve |
| CN202228698U (en) * | 2011-10-08 | 2012-05-23 | 何相华 | Butterfly valve with diversion protective ring |
| CN206929350U (en) * | 2017-04-13 | 2018-01-26 | 鞍山瑞科阀门制造有限公司 | A kind of butterfly valve plate seal protecting device |
| CN210344323U (en) * | 2019-08-21 | 2020-04-17 | 天津市塘沽沃特斯阀门有限公司 | Butterfly valve plate sealing protection device |
-
2019
- 2019-09-02 CN CN201910821476.4A patent/CN110608291B/en active Active
- 2019-09-02 CN CN202011143018.9A patent/CN112268119A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5103858A (en) * | 1990-05-05 | 1992-04-14 | Rolls-Royce Plc | Valve and an atomization chamber |
| CN201714999U (en) * | 2010-06-18 | 2011-01-19 | 慎江阀门有限公司 | Butterfly valve |
| CN202228698U (en) * | 2011-10-08 | 2012-05-23 | 何相华 | Butterfly valve with diversion protective ring |
| CN206929350U (en) * | 2017-04-13 | 2018-01-26 | 鞍山瑞科阀门制造有限公司 | A kind of butterfly valve plate seal protecting device |
| CN210344323U (en) * | 2019-08-21 | 2020-04-17 | 天津市塘沽沃特斯阀门有限公司 | Butterfly valve plate sealing protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110608291A (en) | 2019-12-24 |
| CN112268119A (en) | 2021-01-26 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20201216 Address after: No.8, Wenqiang Road, Yaoxi, Longwan District, Wenzhou City, Zhejiang Province Applicant after: Jitai Valve Group Co.,Ltd. Address before: 323000 no.252, Shiniu Road, Shuige Industrial Park, Liandu District, Lishui City, Zhejiang Province Applicant before: Li Liying |
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