CN117515169B - Double-acting throttle stop valve sealing structure and valve - Google Patents

Double-acting throttle stop valve sealing structure and valve Download PDF

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Publication number
CN117515169B
CN117515169B CN202410015604.7A CN202410015604A CN117515169B CN 117515169 B CN117515169 B CN 117515169B CN 202410015604 A CN202410015604 A CN 202410015604A CN 117515169 B CN117515169 B CN 117515169B
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CN
China
Prior art keywords
valve
sealing
rod
pipe
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
CN202410015604.7A
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Chinese (zh)
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CN117515169A (en
Inventor
辜长明
叶柳
彭奎
王振华
李丰骥
杨鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Zhongyou Leyi Energy Equipment Manufacturing Co ltd
Original Assignee
Sichuan Zhongyou Leyi Energy Equipment Manufacturing Co ltd
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Application filed by Sichuan Zhongyou Leyi Energy Equipment Manufacturing Co ltd filed Critical Sichuan Zhongyou Leyi Energy Equipment Manufacturing Co ltd
Priority to CN202410015604.7A priority Critical patent/CN117515169B/en
Publication of CN117515169A publication Critical patent/CN117515169A/en
Application granted granted Critical
Publication of CN117515169B publication Critical patent/CN117515169B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/02Lift 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 screw-spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/64Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/12Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/14Lift 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 ball-shaped valve member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift 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
    • F16K1/32Details
    • F16K1/34Cutting-off parts, e.g. valve members, seats
    • F16K1/36Valve members
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K29/00Arrangements for movement of valve members other than for opening and closing the valve, e.g. for grinding-in, for preventing sticking
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/50Mechanical actuating means with screw-spindle or internally threaded actuating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K47/00Means in valves for absorbing fluid energy
    • F16K47/01Damping of valve members
    • F16K47/012Damping of valve members by means of a resilient damping element

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Details Of Valves (AREA)

Abstract

The invention discloses a valve sealing structure of a double-acting throttle stop valve and a valve, comprising a valve body, a discharging pipe and a feeding pipe, wherein the discharging pipe and the feeding pipe are connected to the valve body; the cleaning tank is used for cleaning the filter frame, the cleaning tank is positioned on the filter pipe, a cleaning rotating rod is arranged in the cleaning tank, and two groups of cleaning blades which are arranged up and down are arranged on the cleaning rotating rod; the medium can form a good component force structure in the pressure cavity by taking the pressure cavity with a certain value range, so that the sealing effect of the sealing valve ball is improved.

Description

Double-acting throttle stop valve sealing structure and valve
Technical Field
The invention relates to the technical field of stop valves, in particular to a valve sealing structure of a double-acting throttling stop valve and a valve.
Background
The stop valve is also called a stop valve, and belongs to a forced sealing valve, so that when the valve is closed, pressure is applied to a valve clack to force a sealing surface not to leak, when a medium enters the valve from the lower part of the valve clack, the resistance which needs to be overcome by the operation force is the friction force of a valve rod and a filler and the thrust generated by the pressure of the medium, and the force for closing the valve is larger than the force for opening the valve, so that the diameter of the valve rod is larger, otherwise, the valve rod is subject to bending fault, and the valve rod is divided into three types according to the connection mode: flange connection, screw thread connection and welding connection;
the invention discloses a novel stop valve regulated by a hidden rod, which comprises a valve body and a valve core, wherein an installation sleeve is fixed on the inner wall of the upper part of the valve body, the valve core is positioned in the installation sleeve and connected with the installation sleeve through threads, the valve core is sequentially provided with a rotary head part and a valve rod from top to bottom, the valve rod is in transmission connection with a spherical valve clack through a transmission table fixedly arranged at the lower end of the valve rod, the lower part of the transmission table is provided with an arc-shaped groove, an arc-shaped buffer cushion is arranged in the groove, the lower part of the spherical valve clack is matched and sealed with a valve seat, and the equipment achieves better sealing effect through the mutual matching of the arc-shaped groove and a sealing piece of the arc-shaped buffer cushion and the valve;
the prior art is when improving valve seal effect, generally adopts the mode that adds the structure to reach sealed effect, can't utilize the pressure characteristic of medium self to improve sealed effect, and because probably there is impurity in the medium when the medium flows, solid impurity and liquid medium produce kinetic energy different, solid impurity has bigger inertia and kinetic energy, so causes the washing away to the valve easily, causes valve seal structure's damage, and the time is long to lead to seal structure to damage, and even if add and establish filtering structure, reduce wearing and tearing, but must close the valve and just can carry out cleaning action when changing filtering structure.
Therefore, we propose a valve sealing structure of a double-acting throttle stop valve and a valve for solving the problems.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a valve sealing structure and a valve for a double-acting throttle stop valve, so as to solve the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the valve sealing structure of the double-acting throttle stop valve comprises a valve body, and a discharge pipe and a feed pipe which are connected to the valve body, wherein the feed pipe is obliquely connected to the valve body through a flange plate, and the discharge pipe is fixedly connected to one side of the valve body;
further comprises:
the sealing valve ball is used for sealing the valve body, is positioned in the valve body, is movably connected with a threaded valve rod, is of a hollow structure and comprises two hemispheres which are integrally formed, and a pressure cavity is formed at one end, far away from the threaded valve rod, of each hemispheroid;
the rotary valve disc is used for rotating the threaded valve rod, the rotary valve disc is positioned at the top of the valve body, a sliding frame is installed on the rotary valve disc in a threaded mode, and one side of the sliding frame is movably connected with a lifting frame for lifting the telescopic rod;
the collecting pipe is used for collecting solids in a medium and is positioned on the feeding pipe, an impact notch is further formed in the feeding pipe, the collecting pipe is arranged below the impact notch, a collecting cavity is formed in the collecting pipe, an anti-impact plate and an anti-impact spring are arranged in the impact notch, one end of the anti-impact plate is welded on the anti-impact plate, and the other end of the anti-impact spring is welded on the impact notch;
the filter pipe is used for filtering impurities in the medium and is positioned between the feed pipe and the valve body, and two filter frames which are parallel to each other are arranged in the filter pipe;
the cleaning tank is used for cleaning the filter frame, the cleaning tank is located on the filter pipe, a cleaning rotating rod is arranged in the cleaning tank, and two groups of cleaning blades are arranged up and down on the cleaning rotating rod.
In a preferred embodiment, the sealing valve ball housing is provided with a sealing ball housing.
In a preferred embodiment, the sealing ball sleeve is in threaded connection with a stretching rod, the stretching rod penetrates through the rear extension end of the threaded valve rod to be in threaded connection with the lifting frame, a lifting telescopic rod mounted on the rotary valve disc is arranged between the stretching rod and the sliding frame, and the output thread of the lifting telescopic rod is connected with the lifting frame.
In a preferred embodiment, the pressure chamber is a conical structure, the angle between the vertical section of the conical structure and the stretching rod being set in the range of 22 ° -38 °.
In a preferred embodiment, an arc energy-reducing soft plate is arranged below the pressure cavity in the valve body, a smooth sleeve is adhered to the outer surface of the arc energy-reducing soft plate, an energy-reducing cavity is formed between the arc energy-reducing soft plate and the valve body, one end of the energy-reducing spring is arranged in the energy-reducing cavity and abuts against the arc energy-reducing soft plate, the other end of the energy-reducing spring abuts against the valve body, and one end of the energy-reducing spring is in threaded connection with the arc energy-reducing soft plate, and the other end of the energy-reducing spring is in movable connection with a limiting rod of the valve body.
In a preferred embodiment, the energy reduction chamber is filled with air.
In a preferred embodiment, a replacement rotating rod is in threaded connection between the two filter frames on the filter tube, an edge sealing plate is sleeved on the edge of each filter frame, one end of each replacement rotating rod extending out of the filter tube is in threaded connection with a power rod, and one end of each power rod is connected with a replacement gear.
In a preferred embodiment, install the mounting bracket on the clean jar, be connected with motor frame and conversion telescopic link on the mounting bracket, motor frame internal thread installs power motor, the motor frame orientation one side fixedly connected with two sliders of mounting bracket, one of them slider extension be connected to on the output of conversion telescopic link, set up in the mounting bracket with slider complex spout, clean bull stick extends the one end bolted connection of clean jar has the loose fit pole, set up the matching draw-in groove in the loose fit pole, be connected with motor gear on power motor's the output, motor gear dorsad power motor's one side fixedly connected with the matching card body of matching draw-in groove complex.
In a preferred embodiment, a transmission gear is arranged between the motor gear and the replacement gear on the cleaning tank, the filter pipe is connected with the cleaning tank through a bolt, one surface of the filter pipe, which faces the cleaning tank, is fixedly connected with a sealing installation clamping body, a sealing installation clamping groove matched with the sealing installation clamping body is formed in the cleaning tank, and flexible sealing gaskets are attached to the joint of the filter pipe and the cleaning tank.
In order to achieve the above purpose, the present invention further provides the following technical solutions: a double-acting throttling stop valve is provided with the valve sealing structure.
The invention has the technical effects and advantages that:
1. under the action of medium pressure, the medium extrudes the sealing ball sleeve, so that the sealing ball sleeve is tightly attached to the inner wall of the hemispherical body, the more the medium pressure is increased, the more the sealing ball sleeve is embedded into the pressure cavity, the more the medium enters the pressure cavity, so that the medium can form pressure towards the vertical direction of the inner wall of the hemispherical body, the force can form two component forces when acting on the inner wall of the hemispherical body, one component force acts on the hemispherical body upwards to push out, and the hemispherical body is tightly attached to the valve body transversely, so that the effect of passive sealing is achieved; the sealing ball sleeve can be pulled to be embedded into the pressure cavity through the arranged lifting telescopic rod, so that a medium enters the pressure cavity to form a component force, and the sealing valve ball achieves a good sealing effect by utilizing the medium pressure to perform active sealing; the medium can form a good component force structure in the pressure cavity by taking the pressure cavity with a certain value range, so that the sealing effect of the sealing valve ball is improved;
2. according to the invention, the abrasion of the solid matters to the arc energy-reducing soft plate is reduced through the smooth sleeve, the energy-reducing spring can reduce the impact of the large-particle solid matters, the original inertia force of the large-particle solid matters is reduced, and the abrasion to the valve is reduced; the arc energy-reducing soft board can be formed into an elastic arc surface through the injected air, a large amount of small particles are impacted on the arc energy-reducing soft board in a solid state, so that the original inertia force of the solid matters is reduced, and the energy-reducing effect is further achieved; when the filter cores can be replaced through the two filter frames, the filter mechanism is not required to be disassembled, and only the filter frames are required to be rotated to convert the new filter frame and the old filter frame; the motor gear is driven to rotate by the power motor, the power motor and the motor gear move upwards under the lifting of the conversion telescopic rod, the connection with the movable matching rod is completed through the matching clamping groove and the matching clamping body, the movable matching rod drives the cleaning blade on the cleaning rotating rod to rotate, and the rotating cleaning rotating rod cuts and clears the sticky dirt below the filtering frame;
3. when the power motor is not lifted, the power can be transmitted to the replacement gear through the transmission gear, so that the replacement rotating rod is driven by the power rod to rotate through the rotation of the replacement gear, the rotating replacement rotating rod drives the filter frame to complete rotation and replacement, the new filter frame rotates to a proper position for filtering operation, the old filter frame rotates to the cleaning tank, the cleaning action of the old filter frame is convenient, and two action effects can be achieved through the arrangement of one power motor; dirt that drops in the cleaning tank is conveniently taken out through the cleaning tank that can dismantle, and can further clear up the filtration frame to reuse.
Drawings
FIG. 1 is a schematic view showing the internal structure of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a second embodiment of the present invention;
FIG. 3 is a schematic view of another angle structure of a hemisphere according to a second embodiment of the present invention;
FIG. 4 is a schematic view showing a structure in which a sealing ball sleeve is tightly attached to the inner part of a hemisphere according to a second embodiment of the present invention;
FIG. 5 is a schematic view showing the direction of force applied in hemispheres of different angles according to a second embodiment of the present invention;
FIG. 6 is a schematic view showing the internal structure of a third embodiment of the present invention;
FIG. 7 is a schematic view of a partial enlarged structure of the portion A in FIG. 6 according to the present invention;
FIG. 8 is a schematic view showing the internal structure of a fourth embodiment of the present invention;
FIG. 9 is a schematic top view of a fourth embodiment of a filter frame according to the present invention;
FIG. 10 is a perspective view of a fourth embodiment of a filter frame according to the present invention;
FIG. 11 is a schematic diagram showing a comparative lifting and non-lifting configuration of a power motor according to a fourth embodiment of the present invention;
fig. 12 is a schematic view showing the internal structure of a cleaning tank according to a fifth embodiment of the present invention.
The reference numerals are: 1. a valve body; 2. sealing the valve ball; 201. a threaded valve stem; 202. a hemisphere; 203. a pressure chamber; 204. sealing the ball sleeve; 3. rotating the valve disc; 301. a stretching rod; 302. lifting the frame; 303. a carriage; 304. lifting the telescopic rod; 4. a collection pipe; 401. impact notch; 402. a collection chamber; 403. an impact-resistant plate; 404. an anti-impact spring; 405. arc energy-reducing soft board; 406. an optical sliding sleeve; 407. an energy reducing spring; 408. an energy reduction cavity; 5. a filter tube; 501. replacing the rotating rod; 502. a filter frame; 503. an edge sealing plate; 504. a power lever; 6. a cleaning tank; 601. cleaning a rotating rod; 602. cleaning the blade; 603. a movable mating rod; 604. a motor frame; 605. a power motor; 606. converting the telescopic rod; 607. a motor gear; 608. a transmission gear; 609. replacing the gear; 6010. sealing and installing the clamp body; 6011. sealing and installing the clamping groove; 7. a discharge pipe; 8. and (5) feeding a pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to the attached figure 1 of the specification, the invention relates to a valve sealing structure of a double-acting throttle stop valve, which comprises a valve body 1, a discharge pipe 7 and a feed pipe 8 which are connected to the valve body 1, wherein the feed pipe 8 is obliquely connected to the valve body 1 through a flange plate, and the discharge pipe 7 is fixedly connected to one side of the valve body 1; further comprises:
the sealing valve ball 2 is used for sealing the valve body 1, the sealing valve ball 2 is located in the valve body 1, a threaded valve rod 201 is movably connected to the sealing valve ball 2, the threaded valve rod 201 is of a hollow structure, the sealing valve ball 2 comprises two hemispheres 202 which are integrally formed, the two hemispheres 202 are located between the hemispheres 202, and a pressure cavity 203 is formed at one end, far away from the threaded valve rod 201, of each hemispheroid 202.
The sealing valve ball 2 is sleeved with a sealing ball sleeve 204; under the action of the medium pressure, the medium extrudes the sealing ball sleeve 204, so that the sealing ball sleeve 204 is tightly attached to the inner wall of the hemispherical body 202, the more the medium pressure is increased, the more the sealing ball sleeve 204 is embedded into the pressure cavity 203, the more the medium enters the pressure cavity 203, so that the medium can form pressure towards the vertical direction of the inner wall of the hemispherical body 202, the force can form two component forces when acting on the inner wall of the hemispherical body 202, one component force acts on the hemispherical body 202 upwards to push out, and the other component force transversely enables the hemispherical body 202 to be tightly attached to the valve body 1, thereby achieving the effect of passive sealing.
Specifically, when in use, for example, water enters the valve body 1 through the feed pipe 8 and flows out through the discharge pipe 7, when in sealing, the threaded valve rod 201 is rotated, the threaded valve rod 201 drives the sealing valve ball 2 movably connected to move downwards, the sealing valve ball 2 is abutted with the connector to seal the valve, because the valve is in a sealing state, water with water pressure in the valve body 1 can squeeze the cavity formed by the hemisphere 202, the cavity is the pressure cavity 203, the larger the water pressure is, the larger the stress of the sealing ball sleeve 204 sleeved in the pressure cavity 203 is, the more the sealing ball sleeve 204 is embedded, when the water is enough large, the sealing ball sleeve 204 is tightly attached in the pressure cavity 203, and when the sealing ball sleeve 204 is embedded inwards, the pressure cavity 203 is discharged through the hollow threaded valve rod 201, and the original gas in the cavity is formed, so that under the action of the water pressure, the sealing valve ball 2 forms an upward buoyancy force and a transverse extrusion force, if the transverse extrusion force is in a proper range, the sealing effect between the sealing ball 2 and the valve body 1 can be improved, and the sealing effect is completed through the extrusion action of the water pressure.
Example two
Referring to fig. 2-5 of the drawings, the difference between the present embodiment and the first embodiment is that the valve sealing structure of the double-acting throttle stop valve of the present invention includes a rotary valve disc 3, the rotary valve disc 3 for rotating a threaded valve rod 201 is located at the top of the valve body 1, a sliding frame 303 is mounted on the rotary valve disc 3 in a threaded manner, and a lifting frame 302 is movably connected to one side of the sliding frame 303;
the sealing ball sleeve 204 positioned in the pressure cavity 203 is in threaded connection with a stretching rod 301, the stretching rod 301 penetrates through the threaded valve rod 201, the rear extension end of the stretching rod 301 is in threaded connection with a lifting frame 302, a lifting telescopic rod 304 installed on the rotary valve disc 3 is arranged between the stretching rod 301 and the sliding frame 303, and the output thread of the lifting telescopic rod 304 is connected with the lifting frame 302; the sealing ball sleeve 204 can be pulled to be embedded into the pressure cavity 203 through the arranged lifting telescopic rod 304, so that a medium enters the pressure cavity 203 to form a component force, and the sealing valve ball 2 achieves a good sealing effect by using the medium pressure to perform active sealing.
The pressure cavity 203 is of a conical structure, and the included angle between the vertical section of the conical structure and the stretching rod 301 is set to be 22-38 degrees; the medium can form a good component force structure in the pressure cavity 203 by taking the pressure cavity 203 with a certain value range, so that the sealing effect of the sealing valve ball 2 is improved;
specifically, when the water pressure is not enough or active sealing is needed, the lifting telescopic rod 304 is started, the lifting telescopic rod 304 pulls the stretching rod 301, the stretching rod 301 drives the sealing ball sleeve 204 to be actively embedded, so that water conveniently enters the pressure cavity 203, and the two sides of the hemisphere 202 are extruded by the water pressure, so that better stress is achieved;
the angle of the pressure cavity 203 needs to take a range of values, if the water pressure is in the pressure cavity 203, the buoyancy of the sealing valve ball 2 is too large, and a better sealing effect cannot be achieved, and the range of values is 22-38 degrees through multiple tests to achieve the best effect.
Example III
Referring to fig. 6 and 7 of the specification, the valve sealing structure of the double-acting throttle stop valve of the present invention further comprises a collecting pipe 4, wherein the collecting pipe 4 for collecting solids in a medium is positioned on a feeding pipe 8, an impact notch 401 is further arranged on the feeding pipe 8, the collecting pipe 4 is arranged below the impact notch 401, a collecting cavity 402 is arranged in the collecting pipe 4, an impact plate 403 and an impact spring 404 with one end welded on the impact plate 403 and the other end welded on the impact notch 401 are arranged in the impact notch 401;
an arc energy-reducing soft plate 405 which is symmetrically arranged is arranged below the pressure cavity 203 in the valve body 1, a smooth sleeve 406 is adhered on the outer surface of the arc energy-reducing soft plate 405, an energy-reducing cavity 408 is formed between the arc energy-reducing soft plate 405 and the valve body 1, an energy-reducing spring 407 with one end propped against the arc energy-reducing soft plate 405 and the other end propped against the valve body 1 is arranged in the energy-reducing cavity 408, one end of the energy-reducing spring 407 is in threaded connection with the arc energy-reducing soft plate 405, and the other end of the energy-reducing spring 407 is in movable connection with the valve body 1; the abrasion of the solid matters to the arc energy-reducing soft plate 405 is reduced through the smooth sleeve 406, the energy-reducing spring 407 can reduce the impact of the large-particle solid matters, the original inertia force is reduced, and the abrasion to the valve is reduced.
The energy reducing cavity 408 is filled with air; the arc energy reduction soft plate 405 can be formed into an elastic cambered surface through the injected air, and a large amount of small particles are impacted on the arc energy reduction soft plate 405 in a solid state to reduce the original inertia force of the solid matters, so that the energy reduction effect is further achieved;
specifically, when the medium enters the valve, as the medium contains impurities, such as particles in water, the medium in the feed pipe 8 is impacted on the impact notch 401 instead of directly by the obliquely arranged feed pipe 8, and enters the valve sealing structure after turning, namely the valve ball 2 is sealed, so that when the medium is impacted first, the medium is buffered by the impact-resistant plate 403 and the impact-resistant spring 404, wherein larger particles change the original motion state of the larger particles when impacted, and a part of the larger particles fall into the collecting pipe 4 after the valve is closed;
and the rest of the arc energy-reducing soft plate 405 is contacted with the arc energy-reducing soft plate 405 before being contacted with the sealing valve ball 2, the arc energy-reducing soft plate 405 is used for buffering small particles, the original motion state is changed, and after the arc energy-reducing soft plate 405 is impacted, the arc energy-reducing soft plate 405 is deformed, so that a part of kinetic energy is reduced, and the flushing of solid particles in a medium to the valve is reduced.
Example IV
Referring to fig. 8-11 of the specification, the present embodiment is further based on the third embodiment, and the valve sealing structure of the double-acting throttle stop valve of the present invention includes a filter pipe 5, wherein the filter pipe 5 for filtering impurities in a medium is located between the feed pipe 8 and the valve body 1, and two filter frames 502 parallel to each other are disposed in the filter pipe 5; the cleaning tank 6 is used for cleaning the filtering frame 502, the cleaning tank 6 is positioned on the filtering pipe 5, a cleaning rotating rod 601 is arranged in the cleaning tank 6, and two groups of cleaning blades 602 which are arranged up and down are arranged on the cleaning rotating rod 601;
a replacement rotating rod 501 is connected between two filter frames 502 on the filter pipe 5 in a threaded manner, an edge sealing plate 503 is sleeved on the edge of each filter frame 502, one end of each replacement rotating rod 501 extending out of the filter pipe 5 is connected with a power rod 504 in a threaded manner, and one end of each power rod 504 is connected with a replacement gear 609; when can change the filter core through two filter frames 502, need not to dismantle filtering mechanism, only need rotate filter frame 502 and let old and new filter frame 502 change can.
The cleaning tank 6 is provided with a mounting frame, the mounting frame is connected with a motor frame 604 and a conversion telescopic rod 606, a power motor 605 is arranged in the motor frame 604 in a threaded manner, one surface of the motor frame 604 facing the mounting frame is fixedly connected with two sliding blocks, one sliding block extends to be connected to the output end of the conversion telescopic rod 606, a sliding groove matched with the sliding block is formed in the mounting frame, one end of the cleaning rotary rod 601 extending out of the cleaning tank 6 is connected with a movable matching rod 603 in a bolt manner, a matching clamping groove is formed in the movable matching rod 603, a motor gear 607 is connected to the output end of the power motor 605, and one surface of the motor gear 607 facing away from the power motor 605 is fixedly connected with a matching clamping body matched with the matching clamping groove; the motor gear 607 is driven to rotate by the power motor 605, under the lifting of the conversion telescopic rod 606, the power motor 605 and the motor gear 607 move upwards, the connection with the movable matching rod 603 is completed by the matching clamping groove and the matching clamping body, the movable matching rod 603 drives the cleaning blade 602 on the cleaning rotating rod 601 to rotate, and the rotating cleaning rotating rod 601 cuts and clears the adhered dirt below the filtering frame 502;
a transmission gear 608 is arranged between the motor gear 607 and the replacement gear 609 on the cleaning tank 6; when the power motor 605 is not lifted, power can be transmitted to the replacement gear 609 through the transmission gear 608, so that the power rod 504 drives the replacement rotating rod 501 to rotate through the rotation of the replacement gear 609, the rotating replacement rotating rod 501 drives the filter frame 502 to complete rotation replacement, the new filter frame 502 rotates to a proper position for filtering operation, the old filter frame 502 rotates to the cleaning tank 6, the cleaning action of the old filter frame 502 is facilitated, and two action effects can be achieved through the arrangement of one power motor 605;
specifically, after adding filter tube 5, can filter a large amount of substances in the filter tube 5, very easily form vertical dirt under the action of gravity, need clean and change filtration at this moment, through starting power motor 605, under the effect of motor gear 607, transmission gear 608 and change gear 609, drive filter frame 502 and rotate, filter plate in the filter frame 502 carries out new and old change this moment, old filter frame 502 rotates to the position of originally new filter frame 502 after, lifting power motor 605, power motor 605 contacts with clean bull stick 601, clean blade 602 on the drive of clean bull stick 601 rotates, can continue lifting power motor 605 this moment, let clean bull stick 601 continue to rise, let clean blade 602 get deep into filter frame 502 inside, accomplish better cleanness.
Example five
Referring to fig. 12 of the specification, the present embodiment is further based on the fourth embodiment, and the valve sealing structure of the double-acting throttle stop valve of the present invention includes that a filter pipe 5 is connected with a cleaning tank 6 through a bolt, a sealing installation clamp body 6010 is fixedly connected to a surface of the filter pipe 5 facing the cleaning tank 6, a sealing installation clamp groove 6011 matched with the sealing installation clamp body 6010 is provided on the cleaning tank 6, and flexible sealing gaskets are attached to the connection parts of the filter pipe 5 and the cleaning tank 6; the dirt falling in the cleaning tank 6 can be conveniently taken out through the detachable cleaning tank 6, and the filtering frame 502 can be further cleaned so as to be reused;
specifically, when cleaning is required, the cleaning tank 6 is disassembled, and the bolts are disassembled, so that the sealing mounting clamp body 6010 and the sealing mounting clamp groove 6011 are far away, the connection effect is relieved, and cleaning is performed in the cleaning tank 6.
The invention also discloses a double-acting throttling stop valve, which has the valve sealing structure, with reference to the accompanying drawings 1-12 in the specification.
The working principle of the invention is as follows: during use, the valve body 1 is abutted to the position, the feeding pipe 8 enters a medium, the threaded valve rod 201 is driven to rotate by the rotary valve disc 3 during sealing, the sealing valve ball 2 is blocked up to seal a gap, and when sealing is not needed, the sealing valve ball 2 is released, so that the medium flows to the discharging pipe 7 to discharge after being filtered by the filter pipe 5, and solid substances in the medium are subjected to one-stage buffering through the impact-resistant plate 403 and the impact-resistant spring 404 in the medium flowing process, and the arc energy-reducing soft plate 405 is subjected to two-stage buffering to reduce the kinetic energy of the solid substances.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
finally: the foregoing is only illustrative of the present invention and is not to be construed as limiting thereof, but rather, any modifications, equivalent arrangements, improvements, etc., which fall within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides a double-acting throttle stop valve seal structure, includes valve body (1) and connect discharging pipe (7) and inlet pipe (8) on valve body (1), inlet pipe (8) are connected on valve body (1) through the ring flange slant, discharging pipe (7) fixed connection is on one side of valve body (1);
characterized by further comprising:
the sealing valve ball (2) is used for sealing the valve body (1), the sealing valve ball (2) is positioned in the valve body (1), a threaded valve rod (201) is movably connected to the sealing valve ball (2), the threaded valve rod (201) is of a hollow structure, the sealing valve ball (2) comprises two hemispheres (202) which are integrally formed, the hemispheres are positioned between the hemispheres (202), and a pressure cavity (203) is formed at one end, away from the threaded valve rod (201), of each hemispheric (202);
the rotary valve disc (3) is used for rotating the rotary valve disc (3) of the threaded valve rod (201) and is positioned at the top of the valve body (1), a sliding frame (303) is arranged on the rotary valve disc (3) in a threaded mode, one side of the sliding frame (303) is movably connected with a lifting frame (302), a sealing ball sleeve (204) is sleeved outside the sealing ball (2), a stretching rod (301) is arranged in the pressure cavity (203) in a threaded mode, the stretching rod (301) penetrates through the rear extending end of the threaded valve rod (201) and is in threaded connection with the lifting frame (302), a lifting telescopic rod (304) arranged on the rotary valve disc (3) is arranged between the stretching rod (301) and the sliding frame (303), the output thread of the lifting telescopic rod (304) is connected to the lifting frame (302), and under the action of medium pressure, the medium extrudes the sealing ball sleeve (204) to enable the sealing ball sleeve (204) to be tightly attached to the inner wall of the hemispherical body (202);
the collecting pipe (4) is used for collecting solids in a medium, the collecting pipe (4) is positioned on the feeding pipe (8), an impact notch (401) is further formed in the feeding pipe (8), the collecting pipe (4) is arranged below the impact notch (401), a collecting cavity (402) is formed in the collecting pipe (4), an impact-proof plate (403) and an impact-proof spring (404) with one end welded on the impact-proof plate (403) and the other end welded on the impact notch (401) are arranged in the impact notch (401);
the filter pipe (5) is used for filtering impurities in the medium, the filter pipe (5) is positioned between the feed pipe (8) and the valve body (1), and two filter frames (502) which are parallel to each other are arranged in the filter pipe (5);
the cleaning tank (6) is used for cleaning the cleaning tank (6) of the filter frame (502) is located on the filter pipe (5), a cleaning rotating rod (601) is arranged in the cleaning tank (6), and two groups of cleaning blades (602) which are arranged up and down are arranged on the cleaning rotating rod (601).
2. A dual acting throttling cut off valve seal structure according to claim 1, wherein: the pressure cavity (203) is of a conical structure, and an included angle between the vertical section of the conical structure and the stretching rod (301) is set to be 22-38 degrees.
3. A dual acting throttling cut off valve seal structure according to claim 2, characterized in that: the energy-reducing valve is characterized in that an arc energy-reducing soft plate (405) which is symmetrically arranged is arranged below the pressure cavity (203) in the valve body (1), a smooth sleeve (406) is adhered to the outer surface of the arc energy-reducing soft plate (405), an energy-reducing cavity (408) is formed between the arc energy-reducing soft plate (405) and the valve body (1), one end of the energy-reducing spring (407) which is abutted against the arc energy-reducing soft plate (405) is arranged in the energy-reducing cavity (408), the other end of the energy-reducing spring (407) is abutted against the valve body (1), and one end of the energy-reducing spring (407) is in threaded connection with the arc energy-reducing soft plate (405), and the other end of the energy-reducing spring is in movable connection with a limiting rod of the valve body (1).
4. A dual acting throttling cut off valve seal structure according to claim 3, characterized in that: the energy reduction cavity (408) is filled with air.
5. A dual acting throttling cut off valve seal structure as set forth in claim 4 wherein: the utility model is characterized in that a replacement rotating rod (501) is arranged between two filter frames (502) on a filter pipe (5) in a threaded manner, an edge sealing plate (503) is sleeved on the edge of the filter frame (502), a replacement gear (609) is connected with one end of the filter pipe (5) extending out of the replacement rotating rod (501) in a threaded manner, a mounting frame is arranged on the cleaning tank (6), a motor frame (604) and a conversion telescopic rod (606) are connected on the mounting frame, a power motor (605) is arranged on the mounting frame in a threaded manner, the motor frame (604) is fixedly connected with two sliding blocks on one surface of the mounting frame, one sliding block extends and is connected to the output end of the conversion telescopic rod (606), a sliding groove matched with the sliding blocks is arranged in the mounting frame, one end of the cleaning rotating rod (601) extends out of the cleaning tank (6) in a threaded manner, a matching clamping groove is formed in the cleaning tank (603), a motor gear (607) is connected to the output end of the power motor (605), a motor gear (607) is connected with the motor gear (605) back to the motor (605) and is connected with the matching gear (609) on one surface of the cleaning tank (6), the utility model discloses a cleaning device, including clean jar (6), filter tube (5), power pole (504) one end is connected with changes gear (609), filter tube (5) with clean jar (6) pass through bolted connection, filter tube (5) orientation one side fixedly connected with seal installation card body (6010) of clean jar (6), set up on clean jar (6) with seal installation card body (6010) complex seal installation draw-in groove (6011), filter tube (5) with all laminating of clean jar (6) junction has flexible sealing pad.
6. A double-acting throttle stop valve which is characterized in that: the valve having a valve sealing structure as claimed in any one of claims 1 to 5.
CN202410015604.7A 2024-01-05 2024-01-05 Double-acting throttle stop valve sealing structure and valve Active CN117515169B (en)

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CN202410015604.7A CN117515169B (en) 2024-01-05 2024-01-05 Double-acting throttle stop valve sealing structure and valve

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CN117515169B true CN117515169B (en) 2024-03-19

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB861970A (en) * 1957-08-24 1961-03-01 Orville Kit Doyle Ball cock
GB905322A (en) * 1960-04-19 1962-09-05 Evered & Co Ltd Improvements in and relating to fluid controlling valves
GB944157A (en) * 1960-08-22 1963-12-11 Us Industries Inc Fluid control valve
US5241988A (en) * 1989-09-19 1993-09-07 Haynes Joel E Quick opening and closing valve
CN2226178Y (en) * 1995-06-21 1996-05-01 顾一明 Quick acting pressurizing water inlet valve for toilet cistern
CN201787106U (en) * 2010-08-19 2011-04-06 吴小刚 Pneumatic wear-resistant discharging rocking valve
RU2015104184A (en) * 2015-02-09 2016-08-27 Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" BALL VALVE
CN207584126U (en) * 2017-12-11 2018-07-06 洛阳名力科技开发有限公司 Shut-off valve
JP2018179176A (en) * 2017-04-14 2018-11-15 株式会社キッツ High-pressure trunnion-type ball valve and hydrogen station using the same
CN208670158U (en) * 2018-09-05 2019-03-29 河南盛誉实业有限公司 A kind of ceramics Bidirectional intelligent commutator
CN215806321U (en) * 2021-07-27 2022-02-11 大连高阀泵阀有限公司 Inverted sealing stop valve with filter screen
CN114962693A (en) * 2022-06-17 2022-08-30 苏州德兰能源科技股份有限公司 Friction-free adjusting valve with pressure guiding function and using method thereof
CN115978223A (en) * 2023-01-03 2023-04-18 江苏明江阀业有限公司 Anti-blocking pneumatic full-lining ball valve and using method thereof

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB861970A (en) * 1957-08-24 1961-03-01 Orville Kit Doyle Ball cock
GB905322A (en) * 1960-04-19 1962-09-05 Evered & Co Ltd Improvements in and relating to fluid controlling valves
GB944157A (en) * 1960-08-22 1963-12-11 Us Industries Inc Fluid control valve
US5241988A (en) * 1989-09-19 1993-09-07 Haynes Joel E Quick opening and closing valve
CN2226178Y (en) * 1995-06-21 1996-05-01 顾一明 Quick acting pressurizing water inlet valve for toilet cistern
CN201787106U (en) * 2010-08-19 2011-04-06 吴小刚 Pneumatic wear-resistant discharging rocking valve
RU2015104184A (en) * 2015-02-09 2016-08-27 Открытое акционерное общество "Ракетно-космическая корпорация "Энергия" имени С.П. Королева" BALL VALVE
JP2018179176A (en) * 2017-04-14 2018-11-15 株式会社キッツ High-pressure trunnion-type ball valve and hydrogen station using the same
CN207584126U (en) * 2017-12-11 2018-07-06 洛阳名力科技开发有限公司 Shut-off valve
CN208670158U (en) * 2018-09-05 2019-03-29 河南盛誉实业有限公司 A kind of ceramics Bidirectional intelligent commutator
CN215806321U (en) * 2021-07-27 2022-02-11 大连高阀泵阀有限公司 Inverted sealing stop valve with filter screen
CN114962693A (en) * 2022-06-17 2022-08-30 苏州德兰能源科技股份有限公司 Friction-free adjusting valve with pressure guiding function and using method thereof
CN115978223A (en) * 2023-01-03 2023-04-18 江苏明江阀业有限公司 Anti-blocking pneumatic full-lining ball valve and using method thereof

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