CN213929507U - Dustproof hard seal ball valve - Google Patents
Dustproof hard seal ball valve Download PDFInfo
- Publication number
- CN213929507U CN213929507U CN202021853498.3U CN202021853498U CN213929507U CN 213929507 U CN213929507 U CN 213929507U CN 202021853498 U CN202021853498 U CN 202021853498U CN 213929507 U CN213929507 U CN 213929507U
- Authority
- CN
- China
- Prior art keywords
- valve
- ball valve
- contact surface
- clearance mouth
- valve body
- 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
Abstract
The utility model relates to a valve field, the utility model discloses a dustproof hard seal ball valve, including valve body, spheroid and disk seat, the valve body has outside extension's cavity columniform clearance mouth, and clearance mouth internal diameter equals with the inside passageway internal diameter of spheroid, the internal thread has on passageway and the clearance mouth inner wall, the clearance mouth still is connected with the takeover through the screw thread, the takeover surface has the external screw thread that matches with the internal thread, the takeover is established in the lid, the lid passes through the screw thread and is connected with the clearance mouth, and wherein, when the ball valve was closed, passageway in the spheroid is just to the clearance mouth. Hard seal ball valve is often used for media such as high temperature, strong corruption and dust, granule, mud to have caused considerable obstacle to hard seal ball valve's continuous use, for example debris such as silt can be attached to on the inside passageway of ball valve in long-term use, the utility model discloses a can dismantle the ball valve and clear up the ball valve passageway, prevent to silt up stifled.
Description
Technical Field
The utility model belongs to the technical field of a hard seal ball valve technique and specifically relates to a dustproof hard seal ball valve field.
Background
The hard sealing ball valve is much severer than the soft sealing ball valve in the use working condition, and the continuous use of the hard sealing ball valve is hindered by high temperature, strong corrosion and media such as dust, particles, slurry and the like. In order to ensure the metal-to-metal sealing, the sealing specific pressure between the hard sealing ball seats is far greater than that of a common ball valve, for the ball valve, the sealing surface is the most important part influencing the work of the whole valve, the ball valve is an opening and closing part, the operation process of the ball valve is the process of opening or closing the sealing surface on the valve seat, if the sealing surface is damaged in the opening or closing process, the sealing surface is likely to leak, the internal leakage of the valve is caused, and the valve is invalid. In practice, even if the design is precise enough, problems can still occur, such as when the media is not composed of a single gas or liquid, with a large number of solid particles that can cause fatal damage to the seal faces by passing through the flow passage openings into the seal faces.
On the other hand, because a large amount of solid particles such as silt exist in the medium, the solid particles are easy to deposit in the channel of the ball valve, the deposition condition in the channel of the ball valve is not easy to be directly observed at the initial stage of deposition, and the channel deposition needs to be carried out by detaching the ball valve, so that the periodic deposition is inconvenient, and the deposition can be caused after the passage is accumulated for a long time.
Disclosure of Invention
The utility model aims to solve the technical problem that a dustproof hard seal ball valve convenient to observe and make things convenient for the desilting of spheroid passageway is provided.
In order to realize above purpose, the utility model provides a dustproof ball valve sealed firmly, including valve body, spheroid and disk seat, the valve body has outside hollow circular cylindrical clearance mouth that extends, and clearance mouth internal diameter equals with the inside passageway internal diameter of spheroid, the internal thread has on passageway and the clearance mouth inner wall, the clearance mouth still is connected with the takeover through the screw thread, the takeover surface has the external screw thread that matches with the internal thread, and the length of takeover is greater than the length of clearance mouth, the takeover is established in the lid, the lid passes through the screw thread and is connected with the clearance mouth, wherein, when the ball valve was closed, passageway in the spheroid is just to the clearance mouth.
Further, the cleaning port comprises an inlet and an outlet, and the inlet and the outlet are mirror images of the central line of the sphere.
Preferably, the dustproof hard seal ball valve further comprises an outlet arranged at the bottom of the valve body, inner threads are arranged on the inner wall of the outlet, the outlet is in threaded connection with the stud, and a sealing ring in contact with the inner wall of the outlet is arranged on the outer wall of the stud.
Further, the cover is made of a transparent material through which the channel can be viewed.
Furthermore, the channel cleaning tool can be detachably fixed on the cover.
Further, the rear portion of the valve seat is provided with a plurality of grooves along the axis direction, the springs are pressed in the grooves, one ends of the springs are abutted to the bottom surfaces of the grooves, the other ends of the springs are abutted to the contact surface of the valve body and the valve seat, the contact surfaces of the valve seat and the valve body are provided with sealing rings, the valve seat is provided with a scraper device matched with the arc-shaped surface of the ball body, and the springs are tightly pressed on the valve seat to seal the scraper device and the arc-shaped surface of the ball body.
Furthermore, the valve seat and valve body contact surface has a echelonment longitudinal section, from the center outwards respectively be first contact surface, second contact surface, third contact surface and fourth contact surface, the recess is established on the third contact surface, first contact surface is equipped with O type sealing washer, the second contact surface is equipped with packing and O type sealing washer from outside to inside in proper order, the fourth contact surface is equipped with O type sealing washer and packing from outside to inside in proper order.
The utility model has the advantages that:
the utility model discloses when the conversion is opened and close at the ball valve, the extrusion force is big between hard seal ball valve steel ball and disk seat, produces sliding friction between metal steel ball and the metal disk seat and may strain sealed face, the utility model discloses a pressure equipment spring finely tunes pressure behind the disk seat, when reaching sealedly, prevents the scratch, establishes the multi-seal between disk seat and valve body and can prevent that water leakage and silt from getting into the recess, guarantees the spring normal function, and the spring of setting on the disk seat can make scraper device and spheroid arc surface form sealed can all scrape impurity such as the silt on spheroid surface, prevents to get into sealed face, and the spring can prevent scraper device and the too big scratch spheroid arc surface pressure spheroid surface again to the fine setting of pressure between scraper device and spheroid surface simultaneously.
The utility model solves the problem of the damage of debris media such as silt to the sealing surface through the interaction of the scraper device and the spring, but also faces the clogging problem of the channel of the impurities in the ball valve ball body, the utility model arranges a cleaning port at the position which is 90 degrees to the central line of the flow channel on the valve body, a cover made of transparent material is arranged on the cleaning port, when the valve is closed, the channel is just opposite to the cleaning port, the silting condition of the channel can be observed through the cover, when the silting condition of the channel is observed, the cleaning tool which can be detachably fixed on the valve body can be used for cleaning, or an external water pipe can be used for washing, in order to prevent the washed or cleaned debris from entering the valve body and the internal space of the ball body to cause the torsion increase of the opening and closing of the ball body, the utility model is provided with an inlet and an outlet on the valve body, and a connecting pipe which can be connected with the inlet and the channel through screw threads is connected with the inlet and the outlet, sundries are discharged through the connecting pipe, and the outlets can be respectively arranged at the bottom of the valve body or at positions which are in mirror symmetry with the inlets relative to the center line of the sphere.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is an enlarged cross-sectional view of the valve seat;
FIG. 3 is a schematic view of a doctor apparatus;
FIG. 4 is a cross-sectional view of the cleaning port with the valve closed;
FIG. 5 is a schematic cross-sectional view of the purge port and the outlet port with the valve closed.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Referring to fig. 1, the dust-proof hard seal ball valve of the present invention comprises a valve body 1, a ball 4 and a valve seat 5, wherein the valve body 1 is formed by fixing a left part and a right part by bolts, the valve seat 5 is installed at two sides of the ball 4 and connected with the valve body 1, the ball 4 is connected with a valve rod 7 installed in the valve body 1, the valve rod 7 is connected with an actuator 6, when the actuator 6 opens the ball 4, the valve body 1, the valve seat 5 and a channel 3 in the ball 4 can form a flow channel, the valve body 1 is provided with a hollow cylindrical cleaning port 13 extending outwards, the inner diameter of the cleaning port 13 is equal to the inner diameter of the channel 3 inside the ball 4, the inner walls of the channel 3 and the cleaning port 13 are provided with internal threads 14, the cleaning port 13 is further in threaded connection with a connecting pipe 18, the outer surface of the connecting pipe 18 is provided with external threads 15 matched with the internal threads 13 and the channel 3, and the length of the connecting pipe 18 is greater than that of the cleaning port 13, the adapter 18 is arranged in a cover 20, the cover 20 is connected with the cleaning opening 13 through threads, and when the ball valve is closed, the channel 3 in the ball body 4 is opposite to the cleaning opening 13. During cleaning, the valve is rotated by 90 degrees through the actuator 6, the cleaning port 13 is opposite to the channel 3, the cover 20 is rotated to open, the connecting pipe 18 is rotated to connect the connecting pipe 18 with the cleaning port 13 and the channel 3, at the moment, sundries in the channel 3 can be cleaned through the cleaning port 13 and the connecting pipe 18, and can be prevented from entering between the valve body 1 and the ball 4, and a sealing ring, such as an O-shaped sealing ring 17, can be arranged between the cover 20 and the cleaning port 13.
Referring to fig. 4, in the above embodiment, the cover 20 may be made of a transparent material, such as transparent tempered glass or hard plastic, so that the inside of the channel 3 can be directly observed without disassembling the cover 20.
Referring to fig. 4, in the above embodiment, the cleaning port 13 may include an inlet 21 and an outlet 22, the inlet 21 and the outlet 22 have the same structure, the inlet 21 and the outlet 22 are located in mirror symmetry with respect to the center line of the ball 4, the center lines of the inlet 21 and the outlet 22 are perpendicular to the center line of the flow passage when the valve is opened, when in use, the inlet connection pipe 18 may be connected to an external water pipe for flushing, the medium and impurities may be discharged out of the ball valve through the outlet 22, and impurities may be prevented from entering between the valve body 1 and the ball 4.
Referring to fig. 5, the above embodiment may further include an outlet 22 disposed at the bottom of the valve body 1 for discharging only cleaning debris, wherein the inner wall of the outlet 22 is screwed to the stud, the outer wall of the stud is provided with a sealing ring contacting the inner wall of the outlet 22, and when flushing, the stud 24 is rotated and removed, and debris is discharged through the outlet 22.
Referring to fig. 4, in the above embodiment, the cleaning tool 23 is detachably fixed on the cover 20 or the valve body 1 to the channel 3.
Referring to fig. 1, 2 and 3, in the above embodiment, a groove 12 may be provided at the rear of the valve seat 5 along the axial direction, the spring 2 is press-fitted into the groove 12, one end of the spring 2 abuts against the bottom surface of the groove 12, the other end of the spring 2 abuts against the valve body 1, a scraper device 19 matching with the arc-shaped surface of the ball 4 is provided on the valve seat 5, and the spring 2 is pressed against the valve seat 5 to seal the scraper device 19 with the arc-shaped surface of the ball 4. Hard seal ball valve passes through the sealing force between disk seat 5 and spheroid 4 and makes disk seat 5 scraper device 19 and 4 arc surfaces of spheroid form sealed face, the elasticity and the deformability of spring 2, make disk seat 5 and spheroid 4 closely combine to form sealedly, simultaneously because disk seat 5 and spheroid 4 are the metal material preparation that hardness is high, deformation is little, adjust the sealing pressure between disk seat 5 and spheroid 4 to a certain extent through the deformation of spring 2, avoid disk seat 5 scraper device 19 can strike off all impurity on spheroid 4 surface, there is not scratch spheroid 4 surface.
Referring to fig. 2, in the above embodiment, the contact surfaces of the valve seat 5 and the valve body 1 have a stepped longitudinal section, which is a first contact surface 8, a second contact surface 9, a third contact surface 10 and a fourth contact surface 11 from the center to the outside, respectively, the groove 12 is provided on the third contact surface 10, the first contact surface 8 is provided with an O-ring 17, the second contact surface 9 is provided with a packing 16 and an O-ring 17 in sequence from the outside to the inside, and the fourth contact surface 11 is provided with an O-ring 17 and a packing 16 in sequence from the outside to the inside. In the above embodiment, referring to fig. 1 and 2, the contact surfaces of the valve seat 5 and the valve body 1 have a stepped longitudinal section, which is a first contact surface 8, a second contact surface 9, a third contact surface 10, and a fourth contact surface 11 from the center to the outside, respectively, the groove 12 is provided on the third contact surface 10, the first contact surface 8 is provided with a seal ring, the second contact surface 9 is provided with a packing 16 and an O-ring 17 in this order from the outside to the inside, the fourth contact surface 11 is provided with the O-ring 17 and the packing 16 in this order from the outside to the inside, and the packing 16 is woven from expanded graphite wire and can function normally in a severe environment such as a high temperature. In this embodiment, the groove 12 is formed on the third contact surface 10, which can reduce the direct threat of fluid leakage to the groove 12, and the multiple O-ring seals 17 and the packing 16 of the first contact surface 8, the second contact surface 9 and the fourth contact surface 11 can form multiple sealing protections to prevent fluid leakage, and in cooperation with the above-mentioned dustproof measures, another protection can be formed to prevent impurities from entering the contact surfaces to damage the valve seat 5, which leads to leakage and causes failure of the spring 2.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a dustproof ball valve sealed firmly, includes valve body, spheroid and disk seat, characterized by: the valve body has the hollow cylindrical clearance mouth of outside extension, and clearance mouth internal diameter equals with the inside passageway internal diameter of spheroid, the internal thread has on passageway and the clearance mouth inner wall, the clearance mouth still is connected with the takeover through the screw thread, the length of takeover is greater than the length of clearance mouth, the takeover surface has the external screw thread that matches with the internal thread, the takeover is established in the lid, the lid passes through the screw thread and is connected with the clearance mouth, wherein, when the ball valve was closed, passageway in the spheroid is just to the clearance mouth.
2. The dust-resistant hard-seal ball valve as claimed in claim 1, wherein: the cleaning port comprises an inlet and an outlet, and the inlet and the outlet are mirror images relative to the central line of the sphere.
3. The dust-resistant hard-seal ball valve as claimed in claim 1, wherein: the valve body is characterized by further comprising an outlet arranged at the bottom of the valve body, internal threads are arranged on the inner wall of the outlet, the outlet is in threaded connection with a stud, and a sealing ring in contact with the inner wall of the outlet is arranged on the outer wall of the stud.
4. The dust-resistant hard-seal ball valve as claimed in claim 1, wherein: the cover is made of a transparent material through which the channel can be viewed.
5. A dust-tight, hard-sealed ball valve as claimed in any one of claims 1 to 4, further comprising: the cover is detachably fixed with a channel cleaning tool.
6. A dust-tight, hard-sealed ball valve as claimed in any one of claims 1 to 4, further comprising: the ball valve is characterized in that a plurality of grooves are formed in the rear portion of the valve seat along the axis direction, springs are pressed in the grooves, one ends of the springs abut against the bottom surface of the grooves, the other ends of the springs abut against the contact surface of the valve body and the valve seat, sealing rings are arranged on the contact surfaces of the valve seat and the valve body, scraper devices matched with the arc-shaped surface of the ball body are arranged on the valve seat, and the springs are tightly pressed on the valve seat to seal the scraper devices with the arc-shaped surface of the ball body.
7. The dust-resistant hard-seal ball valve as defined in claim 6, wherein: the valve seat and valve body contact surface have the longitudinal section of echelonment, from the center outwards be first contact surface, second contact surface, third contact surface and fourth contact surface respectively, the recess is established on the third contact surface, first contact surface is equipped with O type sealing washer, the second contact surface is equipped with packing and O type sealing washer from the outside in proper order, the fourth contact surface is equipped with O type sealing washer and packing from the outside in proper order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021853498.3U CN213929507U (en) | 2020-08-31 | 2020-08-31 | Dustproof hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021853498.3U CN213929507U (en) | 2020-08-31 | 2020-08-31 | Dustproof hard seal ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213929507U true CN213929507U (en) | 2021-08-10 |
Family
ID=77160097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021853498.3U Active CN213929507U (en) | 2020-08-31 | 2020-08-31 | Dustproof hard seal ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213929507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776828A (en) * | 2022-04-13 | 2022-07-22 | 江苏中冶液压件有限公司 | High-performance hard sealing ball valve for high temperature and high pressure |
-
2020
- 2020-08-31 CN CN202021853498.3U patent/CN213929507U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776828A (en) * | 2022-04-13 | 2022-07-22 | 江苏中冶液压件有限公司 | High-performance hard sealing ball valve for high temperature and high pressure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6321777B1 (en) | Wall-type shower faucet influent load control fixture | |
| US3761052A (en) | Flow plugger valve | |
| CN213929507U (en) | Dustproof hard seal ball valve | |
| IL97595A (en) | Ball valve | |
| CN212131375U (en) | Wear-resistant and corrosion-resistant ball valve | |
| CN103307352A (en) | Filter valve | |
| CN211501754U (en) | Return lock stop valve | |
| CN202768892U (en) | Improved type stop valve | |
| CN209876009U (en) | Particle-proof ball valve | |
| WO2011055371A1 (en) | Easily mountable needle valve | |
| CN104265931A (en) | Flexible sealing plug valve with filter screen | |
| CN210461770U (en) | Full-bore eccentric half-ball valve | |
| CN213206620U (en) | Slide plate gate valve for severe working conditions | |
| CN211398602U (en) | Inflatable butterfly valve | |
| CN212718121U (en) | High-temperature high-pressure hard sealing ball valve | |
| CN110762269B (en) | Mechanical hydraulic valve convenient to clean and disassemble | |
| CN211624271U (en) | Self-cleaning ball valve for chemical equipment | |
| CN112081936A (en) | Slide plate gate valve for severe working conditions | |
| CN219975447U (en) | Combined sealing type filtering ball valve | |
| CN113883279A (en) | From black water valve of taking belt cleaning device | |
| KR100889477B1 (en) | Extraneous matter remove valve of drinking water pipe line | |
| CN220248965U (en) | Relief valve convenient to wash sealed face | |
| CN218440760U (en) | Automatic blowdown filter ball valve | |
| CN216843149U (en) | Butterfly valve with filtering capability | |
| CN104265941A (en) | Metal hard sealing plug valve with filter screen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |