CN111188915B - Silt-resistant butterfly valve - Google Patents
Silt-resistant butterfly valve Download PDFInfo
- Publication number
- CN111188915B CN111188915B CN202010129231.8A CN202010129231A CN111188915B CN 111188915 B CN111188915 B CN 111188915B CN 202010129231 A CN202010129231 A CN 202010129231A CN 111188915 B CN111188915 B CN 111188915B
- Authority
- CN
- China
- Prior art keywords
- silt
- clearance groove
- valve
- sealing ring
- valve rod
- 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.)
- Active
Links
Images
Classifications
-
- 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
- F16K1/2268—Sealing means for the axis of rotation
-
- 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
- F16K1/224—Details of bearings for the axis of rotation
-
- 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
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a silt-resistant butterfly valve which can prevent silt from entering a shaft sleeve, has excellent protection level, can reduce risks, plays multiple protection roles, prolongs the service life of the butterfly valve and reduces maintenance or replacement cost.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a sand-resistant butterfly valve.
Background
A valve is a device used in a fluid system to control the direction, pressure, and flow of a fluid. The valve is a device that can control the flow rate of a medium (liquid, gas, powder) in a pipe or equipment by flowing or stopping the medium. The device can be particularly used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valve is a control part in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, cut-off, throttling, non-return, flow splitting, overflow pressure relief and the like.
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which has a closing member (a valve clack or a butterfly plate) as a disk and can rotate around a valve rod to open and close.
The butterfly valve is in the use, the inevitable existence of a certain amount of silt in the fluid, silt enters into the axle sleeve from the medium clearance groove between disk seat and the valve rod easily when the butterfly valve is opened and close in, can make valve rod and axle sleeve appear wearing and tearing even the dead condition of card after a large amount of silt gets into, be unfavorable for the use of butterfly valve, it is relatively poor to block the protection level that silt enters into in the axle sleeve, can not reduce the risk, play multiple protection, butterfly valve life is shorter, it is big to maintain or the replacement cost.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides a silt-resistant butterfly valve which can prevent silt from entering a shaft sleeve, is excellent in protection level, can reduce risks, plays multiple protection roles, prolongs the service life of the butterfly valve, and reduces maintenance or replacement cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
silt butterfly valve, including set up flow channel's valve body, set up in the disk seat of flow channel inner wall, rotation set up in can be used to seal in the disk seat flow channel's butterfly plate, with butterfly plate linkage complex rotation set up in valve rod in the valve body transmission end, set up in be used for connecting in the valve body transmission end the valve body with the axle sleeve of valve rod, the valve rod with form the medium clearance groove between the disk seat, just be located between valve rod and the valve body the axle sleeve is close to medium clearance groove one side and forms first cooperation clearance groove, and is located the axle sleeve is kept away from medium clearance groove one side and is formed second cooperation clearance groove, be provided with in the medium clearance groove and be used for blockking that the fluid that contains silt enters into first silt resistance silt subassembly in the medium clearance groove, first resistance silt subassembly is kept away from flow channel one side and is located be provided with in the medium clearance be in the time of first resistance silt subassembly damaging the medium clearance groove A second silt-resistant component with a second silt-resistant function is arranged in the first fit clearance groove, and a third silt-resistant component which blocks fluid containing silt from entering the shaft sleeve in the first fit clearance groove when the second silt-resistant component is damaged is arranged in the first fit clearance groove;
a placing groove is formed in the end part of the transmission end of the valve body, a sealing cover is connected to the placing groove in a threaded manner, a dustproof descaling device is arranged in the second fit clearance groove, and one end of the dustproof descaling device is connected with the sealing cover;
the dustproof descaling device comprises a dustproof descaling ring in clearance fit in the second fit clearance groove and a connecting ring, one end of the connecting ring is fixedly connected with the dustproof descaling ring, the other end of the connecting ring is fixedly connected with the sealing cover, and the connecting ring is in transition fit in the second fit clearance groove;
the first silt-resistant component comprises a first sealing ring fixedly arranged on the valve seat and positioned in the medium clearance groove, and a sealing block fixedly arranged on the valve rod and capable of being in rotating fit with the first sealing ring when the valve rod rotates;
the second silt resistant component comprises a second sealing ring which is arranged on the valve rod and is positioned at the bottom of the sealing block;
the second sealing ring comprises a plastic main body fixedly arranged on the valve rod and an elastic auxiliary body, one end of the elastic auxiliary body is fixedly arranged outside the plastic main body, the other end of the elastic auxiliary body is abutted against the inner wall of the valve body, and a sealing pressure cavity is formed between the elastic auxiliary body and the first silt resisting assembly;
the third silt-resistant component comprises a slot arranged on the valve rod and a third sealing ring fixedly arranged between the slot wall of the slot and the slot wall of the first fit clearance slot;
the third sealing ring comprises a compact sealing ring and an elastic sealing ring which is integrally arranged on the end face of the compact sealing ring far away from the second sealing ring;
an elastic block in a compressed state is further arranged between the compact sealing ring and the second sealing ring, and the elastic block is in transition fit in the first fit clearance groove.
The further improvement is that: the dustproof descaling ring comprises a dustproof descaling part fixedly arranged at one end of the connecting ring and a guide part integrally arranged on the dustproof descaling part far away from the end face of the connecting ring.
After the technical scheme is adopted, the invention has the beneficial effects that: the medium clearance groove is internally provided with a first silt-resistant component for blocking fluid containing silt from entering the medium clearance groove, the first silt-resistant component can play a role in blocking the fluid containing silt from entering the medium clearance groove, so that the fluid containing silt has no chance to enter the first matching clearance groove and can not enter the shaft sleeve, the fluid containing silt is blocked outside the medium clearance groove, the risk of entering the silt is greatly reduced, the first silt-resistant component is far away from one side of the fluid channel and is positioned in the medium clearance, a second silt-resistant component which plays a second silt-resistant role in the medium clearance groove when the first silt-resistant component is damaged is arranged in the medium clearance groove, after the butterfly valve is used for a long time, the first silt-resistant component is difficult to avoid damage, and at the moment, the second silt-resistant component can block the fluid containing silt from the first silt-resistant component outside the second silt-resistant component, make the fluid that contains silt only stop at the medium clearance groove and can not enter into first cooperation clearance groove, more can not enter into the axle sleeve, the second heavy protection just can prolong the life of butterfly valve greatly for the butterfly valve is difficult for wearing and tearing or the card damages, be provided with in the first cooperation clearance groove when the second anti-silt subassembly damages be in the fluid that blocks that contains silt in the first cooperation clearance groove enters into third anti-silt subassembly in the axle sleeve, use the butterfly valve for a long time again after, also damage when the second anti-silt subassembly, third anti-silt subassembly can block the fluid that contains silt that comes in from the second anti-silt subassembly outside the third anti-silt subassembly, make the fluid that contains silt can not enter into the axle sleeve, only stop at first cooperation clearance groove, guaranteed the cooperation relation of axle sleeve and valve rod greatly. Under the multiple condition that blocks silt of first anti silt subassembly, the anti silt subassembly of second, the anti silt subassembly of third, the fluid that contains silt can not enter into the axle sleeve, the dead condition of axle sleeve wearing and tearing or card can not appear, and the valve rod is still smooth and easy with the cooperation relation of axle sleeve, and protection level is multiple and good, greatly reduced risk, improved the life of butterfly valve, reduce the cost of maintaining or changing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of a valve body, a valve seat and a valve rod in the invention.
Description of reference numerals: the sealing device comprises a fluid channel 1, a valve body 2, a valve seat 3, a butterfly plate 4, a valve rod 5, a shaft sleeve 6, a medium clearance groove 7, a first fit clearance groove 8, a second fit clearance groove 9, a first sealing ring 10, a sealing block 11, a plastic main body 12, an elastic auxiliary body 13, a sealing pressure cavity 14, a groove 15, a compact sealing ring 16, an elastic sealing ring 17, an elastic block 18, a placing groove 19, a sealing cover 20, a connecting ring 21, a dust-proof descaling part 22 and a guide part 23.
Detailed Description
The technical solutions of the present invention will be described in detail and fully with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. 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. The features of the embodiments in the present application may be combined with each other without conflict.
Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is:
the silt-resistant butterfly valve comprises a valve body 2 provided with a fluid channel 1, a valve seat 3 arranged on the inner wall of the fluid channel 1, a valve rod 5 arranged in a transmission end of the valve body 2 in a rotating way and a valve rod 5 driving form of a butterfly plate 4 for sealing the fluid channel 1 and a butterfly plate 4 in linkage fit with each other, wherein the valve rod 5 and the valve rod 5 are rotatably arranged in the transmission end of the valve body 3, and have executing mechanisms such as manual, worm gear transmission, electric, pneumatic, hydraulic, electro-hydraulic linkage and the like, so that remote control and automatic operation can be realized, the valve rod 5 is of a through rod structure, and has good comprehensive mechanical property, corrosion resistance and scratch resistance, when the butterfly valve is opened and closed, the valve rod 5 only rotates and does not lift and move, the packing of the valve rod 5 is not easy to damage, such as a sealing ring and the like, the butterfly valve rod 5 is reliably sealed, the valve rod 5 is fixed with a taper pin of the butterfly plate 4, and an extending end is designed in an anti-extrusion type so as to prevent the valve rod 5 from collapsing when the connecting part of the butterfly plate 4 is accidentally broken, the connected mode has flange joint, butt weld connection, butt clamp connection and lug butt clamp connection, set up in be used for connecting in the valve body 2 transmission end the valve body 2 with the axle sleeve 6 of valve rod 5, valve rod 5 with form medium clearance groove 7 between the disk seat 3, between valve rod 5 and the valve body 2 and be located the axle sleeve 6 is close to medium clearance groove 7 one side and forms first cooperation clearance groove 8, and is located the axle sleeve 6 is kept away from medium clearance groove 7 one side and is formed second cooperation clearance groove 9, be provided with in the medium clearance groove 7 and be used for blockking that the fluid that contains silt enters into the first silt resistant subassembly in the medium clearance groove 7, first silt resistant subassembly is kept away from fluid passage 1 one side and is located be provided with in the medium clearance 7 and be in when first silt resistant subassembly damages play the second silt resistant subassembly of second time anti-effect in the medium clearance groove 7, be provided with in first cooperation interstitial groove 8 when second anti silt subassembly damages in first cooperation interstitial groove 8 the fluid that keeps off containing silt enters into the third anti silt subassembly in the axle sleeve 6. The butterfly valve is in the use, there is a certain amount of silt inevitable in the fluid, silt enters into axle sleeve 6 from the medium clearance groove 7 between disk seat 3 and the valve rod 5 easily when the butterfly valve is opened and close, can make valve rod 5 and axle sleeve 6 appear wearing and tearing even the dead condition of card after a large amount of silt enters into, be unfavorable for the use of butterfly valve, it is relatively poor to block the protection level that silt enters into in the axle sleeve 6, can not reduce the risk, play multiple protection, butterfly valve life is short, it is big to maintain or the replacement cost. The medium clearance groove 7 is internally provided with a first silt-resistant component for blocking fluid containing silt from entering the medium clearance groove 7, the first silt-resistant component can play a role in blocking the fluid containing silt from entering the medium clearance groove 7, so that the fluid containing silt does not have a chance to enter the first matching clearance groove 8 and even cannot enter the shaft sleeve 6, the fluid containing silt is blocked outside the medium clearance groove 7, the risk of entering silt is greatly reduced, the first silt-resistant component is far away from one side of the fluid channel 1 and is positioned in the medium clearance 7, a second silt-resistant component which plays a second silt-resistant role in the medium clearance groove 7 when the first silt-resistant component is damaged is arranged in the medium clearance groove 7, after the butterfly valve is used for a long time, the first silt-resistant component is difficult to be damaged, and at the moment, the second silt-resistant component can block the fluid containing silt entering from the first silt-resistant component outside the second silt-resistant component, so that the fluid containing silt only stays in the medium clearance groove 7 and can not enter the first fit clearance groove 8 and can not enter the shaft sleeve 6, the second protection can greatly prolong the service life of the butterfly valve, the butterfly valve is not easy to wear or be stuck and damaged, a third silt-resistant component which blocks fluid containing silt from entering the shaft sleeve 6 in the first fit clearance groove 8 when the second silt-resistant component is damaged is arranged in the first fit clearance groove 8, and after a butterfly valve is used for a long time, when the second silt resisting component is damaged, the third silt resisting component can block the fluid containing silt coming from the second silt resisting component out of the third silt resisting component, the fluid containing silt can not enter the shaft sleeve 6 and only stays in the first fit clearance groove 8, so that the fit relation between the shaft sleeve 6 and the valve rod 5 is greatly ensured. Under the multiple circumstances that blocks silt of first anti silt subassembly, the anti silt subassembly of second, the anti silt subassembly of third, the fluid that contains silt can not enter into axle sleeve 6, the 6 wearing and tearing of axle sleeve or the dead circumstances of card can not appear, and valve rod 5 is still smooth and easy with axle sleeve 6's cooperation relation, and protection level is multiple and good, greatly reduced risk, improved the life of butterfly valve, reduce the cost of maintaining or changing. First anti silt subassembly including fixed set up in on the disk seat 3 and be located first sealing washer 10, the fixed setting in on the valve rod 5 can with when rotating first sealing washer 10 normal running fit's sealed piece 11. The cooperation of first sealing washer 10 and sealed piece 11 plays the effect that first heavy blocking silt, can block the fluid that contains silt that flows in disk seat 3 outside medium clearance groove 7, greatly reduced axle sleeve 6 advance the risk of silt for the fluid that contains silt does not have the chance to enter into first cooperation clearance groove 8, can not enter into in the axle sleeve 6 yet. The seal block 10 and the first seal ring 11 are in clearance fit, so that the clearance between the seal block and the first seal ring is small, and the effect of blocking silt is improved. The second anti-sand component comprises a second sealing ring arranged on the valve rod 5 and located at the bottom of the sealing block 11. The second sealing washer plays the effect that the second heavily blocks silt, when first sealing washer 10 damaged completely with the cooperation of sealed piece 11, the fluid that will contain silt blocks outside the second sealing washer for the fluid that contains silt only stops in medium clearance groove 7 can not enter into first cooperation clearance groove 8, can not enter into axle sleeve 6 in, the second is heavy protection just can prolong the life of butterfly valve greatly, makes the butterfly valve be difficult for wearing and tearing or the card damages. The second sealing washer including fixed set up in plastic main part 12, the one end on the valve rod 5 is fixed set up in the outside other end of plastic main part 12 with the vice body 13 of elasticity that 2 inner walls of valve body supported, form sealed pressure chamber 14 between vice body 13 of elasticity and the first anti silt subassembly. The sealing pressure refers to the actual pressure of the medium when the medium in the sealing device is at a level at which leakage will not occur. When the clearance is too large and is not completely damaged due to the fact that the rotating fit of the first sealing ring 10 and the sealing block 11 fails, the pressure of fluid can not break through the clearance due to the cooperation of the sealing pressure cavity 14 and the elastic auxiliary body 13, the fluid containing silt is blocked outside the second sealing ring, when the fluid containing silt enters the sealing pressure cavity 14 to apply pressure to the elastic auxiliary body 13 when the fluid containing silt enters the second sealing ring, the elastic auxiliary body 13 supports against the inner wall of the valve body 2, and the fluid containing silt can not enter the elastic auxiliary body 13. The third anti silt subassembly is including seting up in fluting 15 on the valve rod 5, fixed set up in fluting 15 cell wall with the third sealing washer between the 8 cell walls of first fit clearance. The third sealing washer can play the effect that the third was heavy to block silt when the second sealing washer damaged completely for the fluid that contains silt can not enter into axle sleeve 6 in, only stops in first cooperation clearance groove 8, has guaranteed the cooperation relation of axle sleeve 6 with valve rod 5 greatly. The third sealing ring comprises a compact sealing ring 16 and an elastic sealing ring 17 which is integrally arranged on the end face of the compact sealing ring 16 far away from the second sealing ring. The compact sealing ring 16 is compact in material, so that fluid containing tiny silt hardly erodes and damages the compact sealing ring 16, the blocking effect is improved, the elastic sealing ring 17 and the groove 15 are matched to play a role in buffering and damping after the fluid containing silt is subjected to pressure, and the elastic sealing ring 17 is prevented from falling off. An elastic block 18 in a compressed state is further arranged between the compact sealing ring 16 and the second sealing ring, and the elastic block 18 is in transition fit in the first fit clearance groove 8. When the clearance is too large and is not damaged completely because of the failure of the rotating fit of the first sealing ring 1 and the sealing block 11, the pressure of fluid can not break through the clearance due to the fit of the sealing pressure cavity 14 and the elastic auxiliary body 13, and after the elastic auxiliary body 13 is worn, the elastic block 18 in a compressed state can provide sealing ratio for the elastic auxiliary body 13, so that the fluid containing silt can not break through the blocking line of the elastic auxiliary body 13. The end part of the transmission end of the valve body 2 is provided with a placing groove 19, the placing groove 19 is connected with a sealing cover 20 in an internal thread mode, a dustproof descaling device is arranged in the second fit clearance groove 9, and one end of the dustproof descaling device is connected with the sealing cover 20. The sealing cover 20 is used for being matched with the thread of the placing groove 19 to enable pollutants such as dust and the like not to enter the shaft sleeve 6 from the second matching clearance groove 9, abrasion or the dead condition of clamping is reduced, the dustproof descaling device is arranged after the sealing cover 20 is installed, the dustproof effect is achieved on the second matching clearance groove 9, when the sealing cover 20 is disassembled, the descaling effect is achieved on the second matching clearance groove 9, and the pollutants adhered to the wall of the second matching clearance groove 9 can be washed out along with the dustproof descaling device. The dustproof descaling device comprises a dustproof descaling ring in clearance fit in the second fit clearance groove 9 and a connecting ring 21, one end of the connecting ring is fixedly connected with the dustproof descaling ring, the other end of the connecting ring is fixedly connected with the sealing cover 20, and the connecting ring 21 is in transition fit in the second fit clearance groove 9. The setting of dustproof scale removal circle can play dustproof effect to second cooperation clearance groove 9 after sealed lid 20 installation, when sealed lid 20 dismantles, plays the effect of scale removal to second cooperation clearance groove 9 for the pollutant that bonds on second cooperation clearance groove 9 cell wall comes out and washs out along with dustproof scale removal circle. The dustproof descaling ring comprises a dustproof descaling part 22 fixedly arranged at one end of the connecting ring 21 and a guide part 23 integrally arranged on the end face, far away from the connecting ring 21, of the dustproof descaling part 22. Due to the arrangement of the guide part 23, the dustproof descaling ring plays a guiding role during installation, and the installation and disassembly efficiency is improved.
The working principle of the invention is as follows: the medium clearance groove 7 is internally provided with a first silt-resistant component for blocking fluid containing silt from entering the medium clearance groove 7, the first silt-resistant component can play a role in blocking the fluid containing silt from entering the medium clearance groove 7, so that the fluid containing silt does not have a chance to enter the first matching clearance groove 8 and even cannot enter the shaft sleeve 6, the fluid containing silt is blocked outside the medium clearance groove 7, the risk of entering silt is greatly reduced, the first silt-resistant component is far away from one side of the fluid channel 1 and is positioned in the medium clearance 7, a second silt-resistant component which plays a second silt-resistant role in the medium clearance groove 7 when the first silt-resistant component is damaged is arranged in the medium clearance groove 7, after the butterfly valve is used for a long time, the first silt-resistant component is difficult to be damaged, and at the moment, the second silt-resistant component can block the fluid containing silt entering from the first silt-resistant component outside the second silt-resistant component, so that the fluid containing silt only stays in the medium clearance groove 7 and can not enter the first fit clearance groove 8 and can not enter the shaft sleeve 6, the second protection can greatly prolong the service life of the butterfly valve, the butterfly valve is not easy to wear or be stuck and damaged, a third silt-resistant component which blocks fluid containing silt from entering the shaft sleeve 6 in the first fit clearance groove 8 when the second silt-resistant component is damaged is arranged in the first fit clearance groove 8, and after a butterfly valve is used for a long time, when the second silt resisting component is damaged, the third silt resisting component can block the fluid containing silt coming from the second silt resisting component out of the third silt resisting component, the fluid containing silt can not enter the shaft sleeve 6 and only stays in the first fit clearance groove 8, so that the fit relation between the shaft sleeve 6 and the valve rod 5 is greatly ensured. Under the multiple circumstances that blocks silt of first anti silt subassembly, the anti silt subassembly of second, the anti silt subassembly of third, the fluid that contains silt can not enter into axle sleeve 6, the 6 wearing and tearing of axle sleeve or the dead circumstances of card can not appear, and valve rod 5 is still smooth and easy with axle sleeve 6's cooperation relation, and protection level is multiple and good, greatly reduced risk, improved the life of butterfly valve, reduce the cost of maintaining or changing.
After the technical scheme is adopted, the invention has the beneficial effects that: the medium clearance groove is internally provided with a first silt-resistant component for blocking fluid containing silt from entering the medium clearance groove, the first silt-resistant component can play a role in blocking the fluid containing silt from entering the medium clearance groove, so that the fluid containing silt has no chance to enter the first matching clearance groove and can not enter the shaft sleeve, the fluid containing silt is blocked outside the medium clearance groove, the risk of entering the silt is greatly reduced, the first silt-resistant component is far away from one side of the fluid channel and is positioned in the medium clearance, a second silt-resistant component which plays a second silt-resistant role in the medium clearance groove when the first silt-resistant component is damaged is arranged in the medium clearance groove, after the butterfly valve is used for a long time, the first silt-resistant component is difficult to avoid damage, and at the moment, the second silt-resistant component can block the fluid containing silt from the first silt-resistant component outside the second silt-resistant component, make the fluid that contains silt only stop at the medium clearance groove and can not enter into first cooperation clearance groove, more can not enter into the axle sleeve, the second heavy protection just can prolong the life of butterfly valve greatly for the butterfly valve is difficult for wearing and tearing or the card damages, be provided with in the first cooperation clearance groove when the second anti-silt subassembly damages be in the fluid that blocks that contains silt in the first cooperation clearance groove enters into third anti-silt subassembly in the axle sleeve, use the butterfly valve for a long time again after, also damage when the second anti-silt subassembly, third anti-silt subassembly can block the fluid that contains silt that comes in from the second anti-silt subassembly outside the third anti-silt subassembly, make the fluid that contains silt can not enter into the axle sleeve, only stop at first cooperation clearance groove, guaranteed the cooperation relation of axle sleeve and valve rod greatly. Under the multiple condition that blocks silt of first anti silt subassembly, the anti silt subassembly of second, the anti silt subassembly of third, the fluid that contains silt can not enter into the axle sleeve, the dead condition of axle sleeve wearing and tearing or card can not appear, and the valve rod is still smooth and easy with the cooperation relation of axle sleeve, and protection level is multiple and good, greatly reduced risk, improved the life of butterfly valve, reduce the cost of maintaining or changing.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to those skilled in the art.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. Anti silt butterfly valve, including set up fluid passage's valve body, set up in the disk seat of fluid passage inner wall, rotate set up in can be used to seal in the disk seat fluid passage's butterfly plate, with the rotation of butterfly plate linkage complex set up in valve rod in the valve body transmission end, set up in be used for connecting in the valve body transmission end the valve body with the axle sleeve of valve rod, the valve rod with form the medium clearance groove between the disk seat, just be located between valve rod and the valve body the axle sleeve is close to medium clearance groove one side and forms first cooperation clearance groove, just is located the axle sleeve is kept away from medium clearance groove one side and is formed second cooperation clearance groove, its characterized in that: a first silt-resistant assembly used for preventing fluid containing silt from entering the medium clearance groove is arranged in the medium clearance groove, the first silt-resistant assembly is far away from one side of the fluid channel and is positioned in the medium clearance, a second silt-resistant assembly which plays a second silt-resistant role in the medium clearance groove when the first silt-resistant assembly is damaged is arranged in the medium clearance groove, and a third silt-resistant assembly which is used for preventing the fluid containing silt from entering the shaft sleeve when the second silt-resistant assembly is damaged is arranged in the first fit clearance groove;
a placing groove is formed in the end part of the transmission end of the valve body, a sealing cover is connected to the placing groove in a threaded manner, a dustproof descaling device is arranged in the second fit clearance groove, and one end of the dustproof descaling device is connected with the sealing cover;
the dustproof descaling device comprises a dustproof descaling ring in clearance fit in the second fit clearance groove and a connecting ring, one end of the connecting ring is fixedly connected with the dustproof descaling ring, the other end of the connecting ring is fixedly connected with the sealing cover, and the connecting ring is in transition fit in the second fit clearance groove;
the first silt-resistant component comprises a first sealing ring fixedly arranged on the valve seat and positioned in the medium clearance groove, and a sealing block fixedly arranged on the valve rod and capable of being in rotating fit with the first sealing ring when the valve rod rotates;
the second silt resistant component comprises a second sealing ring which is arranged on the valve rod and is positioned at the bottom of the sealing block;
the second sealing ring comprises a plastic main body fixedly arranged on the valve rod and an elastic auxiliary body, one end of the elastic auxiliary body is fixedly arranged outside the plastic main body, the other end of the elastic auxiliary body is abutted against the inner wall of the valve body, and a sealing pressure cavity is formed between the elastic auxiliary body and the first silt resisting assembly;
the third silt-resistant component comprises a slot arranged on the valve rod and a third sealing ring fixedly arranged between the slot wall of the slot and the slot wall of the first fit clearance slot;
the third sealing ring comprises a compact sealing ring and an elastic sealing ring which is integrally arranged on the end face of the compact sealing ring far away from the second sealing ring;
an elastic block in a compressed state is further arranged between the compact sealing ring and the second sealing ring, and the elastic block is in transition fit in the first fit clearance groove.
2. The silt-resistant butterfly valve of claim 1, wherein: the dustproof descaling ring comprises a dustproof descaling part fixedly arranged at one end of the connecting ring and a guide part integrally arranged on the dustproof descaling part far away from the end face of the connecting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010129231.8A CN111188915B (en) | 2020-02-28 | 2020-02-28 | Silt-resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010129231.8A CN111188915B (en) | 2020-02-28 | 2020-02-28 | Silt-resistant butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111188915A CN111188915A (en) | 2020-05-22 |
| CN111188915B true CN111188915B (en) | 2022-04-19 |
Family
ID=70705243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010129231.8A Active CN111188915B (en) | 2020-02-28 | 2020-02-28 | Silt-resistant butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111188915B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321983Y (en) * | 1997-12-19 | 1999-06-02 | 长沙市阀门厂 | Butterfly valve capable of preventing sand from entering bearing |
| DE10057408A1 (en) * | 2000-11-20 | 2002-05-23 | Linde Ag | Shut-off |
| CN2505653Y (en) * | 2001-09-06 | 2002-08-14 | 湖北洪城通用机械股份有限公司 | Anti-sand butterfly valve |
| CN2563373Y (en) * | 2002-07-24 | 2003-07-30 | 湖南泵阀制造有限公司 | Conveniently dismantling sand and mud proof two way sealed three eccentric butterfly valve |
| CN2823706Y (en) * | 2005-08-31 | 2006-10-04 | 黄作兴 | Butterfly valve with sediment-proof structure |
| CN200961716Y (en) * | 2006-09-26 | 2007-10-17 | 能发伟业铁岭阀门股份有限公司 | Wear-resistant valve for liquid containing solid granule |
| CN202100738U (en) * | 2011-05-31 | 2012-01-04 | 江苏特一机械股份有限公司 | Three-eccentric high-performance seal butterfly valve with dustproof structure |
| CN104329464A (en) * | 2014-10-30 | 2015-02-04 | 重庆山能仪表有限公司 | Safe packing seal structure |
| CN204175990U (en) * | 2014-09-24 | 2015-02-25 | 天胜阀门集团有限公司 | The vertical butterfly valve of a kind of axle head double-sealing |
-
2020
- 2020-02-28 CN CN202010129231.8A patent/CN111188915B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2321983Y (en) * | 1997-12-19 | 1999-06-02 | 长沙市阀门厂 | Butterfly valve capable of preventing sand from entering bearing |
| DE10057408A1 (en) * | 2000-11-20 | 2002-05-23 | Linde Ag | Shut-off |
| CN2505653Y (en) * | 2001-09-06 | 2002-08-14 | 湖北洪城通用机械股份有限公司 | Anti-sand butterfly valve |
| CN2563373Y (en) * | 2002-07-24 | 2003-07-30 | 湖南泵阀制造有限公司 | Conveniently dismantling sand and mud proof two way sealed three eccentric butterfly valve |
| CN2823706Y (en) * | 2005-08-31 | 2006-10-04 | 黄作兴 | Butterfly valve with sediment-proof structure |
| CN200961716Y (en) * | 2006-09-26 | 2007-10-17 | 能发伟业铁岭阀门股份有限公司 | Wear-resistant valve for liquid containing solid granule |
| CN202100738U (en) * | 2011-05-31 | 2012-01-04 | 江苏特一机械股份有限公司 | Three-eccentric high-performance seal butterfly valve with dustproof structure |
| CN204175990U (en) * | 2014-09-24 | 2015-02-25 | 天胜阀门集团有限公司 | The vertical butterfly valve of a kind of axle head double-sealing |
| CN104329464A (en) * | 2014-10-30 | 2015-02-04 | 重庆山能仪表有限公司 | Safe packing seal structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111188915A (en) | 2020-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104482253A (en) | Combined valve | |
| CN111188915B (en) | Silt-resistant butterfly valve | |
| CN111810664B (en) | Vacuum die-casting stop valve of hydraulic pump | |
| CN101354080B (en) | Cut-off type power-off reset electric valve | |
| CN113969997B (en) | Double-valve core automatic control valve | |
| CN217683466U (en) | Easy-to-disassemble valve for petroleum equipment | |
| CN216789282U (en) | Novel double-open gate valve | |
| CN117515206A (en) | Sealing surface automatic detection type ball valve for chemical pipeline | |
| CN212055881U (en) | Butterfly valve with automatic sealing function | |
| CN205064949U (en) | A Y-type straight-through lifting check valve | |
| CN204677788U (en) | High Temperature High Pressure Y-shaped cut-off valve | |
| CN109296865A (en) | A kind of valve with alternate configuration | |
| CN201954055U (en) | Asymmetric water sealing check valve | |
| CN209557715U (en) | A kind of adjustable check valve | |
| CN209875988U (en) | A double-knife double-isolation and relief knife valve | |
| CN112377625A (en) | Differential pressure regulating stop valve | |
| CN102135197B (en) | Asymmetrical water seal check valve | |
| CN214368088U (en) | Industrial electromagnetic valve | |
| CN214789101U (en) | Open-type U-shaped butterfly valve | |
| CN209325062U (en) | A kind of dust guard of shut-off valve peculiar to vessel | |
| CN218787332U (en) | Double-core valve plate valve device | |
| CN208804249U (en) | A kind of shut-off valve of sealing structure | |
| CN212899742U (en) | Natural gas line valve structure | |
| CN220320377U (en) | Corrosion-resistant diaphragm valve | |
| CN221629085U (en) | Elastic sealing stop valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |