CN117329321A - Double-ball double-filler high-frequency quick-opening ball valve - Google Patents
Double-ball double-filler high-frequency quick-opening ball valve Download PDFInfo
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- CN117329321A CN117329321A CN202311463417.7A CN202311463417A CN117329321A CN 117329321 A CN117329321 A CN 117329321A CN 202311463417 A CN202311463417 A CN 202311463417A CN 117329321 A CN117329321 A CN 117329321A
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- 239000000945 filler Substances 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 claims abstract description 67
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000012856 packing Methods 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 210000004907 gland Anatomy 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- 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
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/023—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles
- F16K41/026—Spindle sealings with stuffing-box ; Sealing rings for spindles which only rotate, i.e. non-rising spindles for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a double-ball double-filler high-frequency quick-opening ball valve, which comprises a sealing assembly, a filling assembly and an auxiliary assembly, wherein the sealing assembly comprises a valve body, two ends of the valve body are respectively provided with a feed inlet, the two groups of feed inlets are communicated, the inner wall of the valve body is rotatably provided with balls, two groups of balls are arranged in parallel, an opening is arranged in the center of each ball in a penetrating manner, the outer wall of the bottom of the valve body is fixedly and detachably provided with a bottom cover through bolts, the two groups of bottom covers are arranged in parallel, the top end of each bottom cover is connected inside the valve body, the outer wall of the top end of each bottom cover is provided with a first sliding bearing, the bottom of each ball is provided with a groove, the bottom of each first sliding bearing is connected inside each groove, the outer wall of the top of each ball is fixedly provided with a valve rod through welding, the valve rod is rotatably arranged on one side of the valve body, the top of each valve rod is provided with a connector, the outer wall of the bottom end of each valve rod is provided with a second sliding bearing, the second sliding bearing is matched with the valve body, and the inner wall on one side of the valve body is provided with a gasket.
Description
Technical Field
The invention relates to the technical field of ball valves, in particular to a double-ball double-filler high-frequency quick-opening ball valve.
Background
The ball valve, the opening and closing piece (sphere) is driven by the valve rod and rotates around the axis of the ball valve. The ball valve can be used for regulating and controlling fluid, is widely applied to industries such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere with a circular through hole or channel passing through its axis. The ball valve is widely applied to the high-temperature and high-pressure ball valves commonly used in some industrial production, is suitable for high-temperature and high-pressure environments, and is suitable for granular media such as solid dust, fibers and the like.
Through searching, the patent with the Chinese patent application number of 201710539186.1 discloses a ball valve, which comprises a valve body with an inner cavity; the valve seat is arranged in the inner cavity, and an accommodating space is formed between one end of the valve seat and the valve body; the spring is arranged in the accommodating space and is propped against the valve body and the valve seat; the ball valve further comprises: and the isolating cylinder is connected between the valve body and the valve seat, separates the accommodating space into a spring accommodating space and an overflow space which are mutually independent, and accommodates the spring in the spring accommodating space. One of the ball valves in the above patent suffers from the following disadvantages: the device needs to carry out high-frequency fast switch when using, along with the increase of live time, the leakproofness of the device can become poor gradually, leads to unable normal sealing when closing, takes place to reveal the circumstances such as etc. and causes the waste of raw materials.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a double-ball double-filler high-frequency quick-opening ball valve.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a two ball double-packing high frequency quick-open ball valves, including seal assembly, filling assembly and auxiliary assembly, seal assembly includes the valve body, the valve body both ends all are provided with the feed inlet, two sets of feed inlets are linked together, the rotatable spheroid that is provided with of valve body inner wall, spheroid parallel arrangement is two sets of, spheroid central authorities run through and are provided with the trompil, valve body bottom outer wall has the bottom through bolt fastening demountable installation, bottom parallel arrangement is two sets of, the bottom top is connected inside the valve body, first slide bearing is installed on bottom top outer wall, the spheroid bottom is provided with the recess, first slide bearing is connected in the recess, the spheroid bottom is provided with thrust bearing, spheroid top outer wall is provided with the valve rod through welded fastening, the valve rod is rotatable to run through valve body one side setting, the valve rod top is provided with the connector, valve rod bottom outer wall is provided with second slide bearing, second slide bearing is provided with the gasket with valve body one side inner wall, gasket and second slide bearing looks adaptation.
As still further aspects of the invention: the packing assembly comprises a first sealing sleeve, the first sealing sleeve is provided with two groups, the bottom of the first sealing sleeve is fixed on the outer wall of the top of the valve body through bolts, a gap for a valve rod to pass through is formed in the center of the first sealing sleeve, first packing is arranged on the inner wall of the first sealing sleeve and is matched with the valve rod, studs are arranged on the top of the first sealing sleeve, a plurality of groups of studs are arranged on the top of the first sealing sleeve, a packing gland is arranged on the studs arranged on the top of the first sealing sleeve, nuts are detachably arranged at the end heads of the studs, and the bottoms of the packing gland prop against the first packing.
As still further aspects of the invention: the auxiliary assembly comprises springs, the springs are provided with a plurality of groups and are respectively fixed on the inner wall of the valve body, one side of each spring is connected with a spring seat, one side of each spring seat is fixedly provided with a valve seat, the valve seats are matched with the spheres, and the valve seats are respectively arranged on two sides of the two groups of spheres.
As still further aspects of the invention: the outer wall of the top of the first sealing sleeve is fixedly and detachably provided with a second sealing sleeve through bolts, the second sealing sleeve is matched with a valve rod, second packing is arranged in the second sealing sleeve and is matched with the valve rod, the top of the second sealing sleeve is provided with two groups of studs, a group of packing gland is installed through the studs, the bottom of the packing gland props against the second packing, and the top of the stud is detachably provided with a nut.
As still further aspects of the invention: the top cover is fixedly arranged on the outer wall of the top of the second sealing sleeve through bolts, and a gap for the valve rod to pass through is formed in the center of the top cover.
As still further aspects of the invention: the surface of the ball body is uniformly sprayed with a PVD coating, and the valve seat is also sprayed with the PVD coating.
As still further aspects of the invention: graphite ring is provided with above the spheroid, graphite ring and valve rod looks adaptation, and graphite ring has sealed valve rod and spheroidal junction.
As still further aspects of the invention: the feed inlets at two ends of the valve body are identical in size and symmetrical to each other.
As still further aspects of the invention: the valve seat is designed in a scraper type on one joint side of the ball body.
As still further aspects of the invention: and a build-up welding layer is welded at the joint of the ball body and the valve rod, and is made of STL hard alloy.
The beneficial effects of the invention are as follows:
1. the sealing is carried out through the design of the double-ball structure, after the sealing failure of the first group of balls, the sealing is not carried out directly, but the sealing is further carried out through the second group of balls, so that the reliability is effectively improved, and the waste caused by the leakage of materials after the sealing failure of the single-ball design is avoided;
2. the valve seat and the ball are sprayed with PVD, so that the hardness and the service life are improved, the sealing performance of the valve seat under the scouring of a granular medium is ensured, the wear resistance of the surface of the die is improved by the PVD coating, the hardness of the die is higher, the friction coefficient of the PVD coating is low, the lubricity of the die is improved, and the chemical corrosion resistance is greatly improved by the PVD coating technology.
3. The valve rod sealing structure is provided with a double-filler sealing structure, and after the first group of fillers fail, the second group of fillers can still be normally used, so that leakage is avoided.
4. The surfacing layer made of STL hard alloy is arranged at the joint of the ball body and the valve rod, so that the strength is increased, and the abrasion and deformation under the high-frequency quick-opening working environment are avoided.
Drawings
FIG. 1 is a schematic diagram of a main view angle of a double-ball double-filler high-frequency quick-opening ball valve according to the present invention;
FIG. 2 is a schematic structural view of a sealing part of a double-ball double-filler high-frequency quick-opening ball valve provided by the invention;
FIG. 3 is a schematic structural view of a reinforcing part of a double-ball double-filler high-frequency quick-opening ball valve provided by the invention;
FIG. 4 is a schematic structural diagram of a filling part of a double-ball double-filler high-frequency quick-opening ball valve according to the invention;
FIG. 5 is a schematic view of a dual ball dual packing high frequency quick opening ball valve guard portion according to the present invention
Fig. 6 is a schematic structural diagram of a leak-proof part of a double-ball double-filler high-frequency quick-opening ball valve provided by the invention.
In the figure: 1-valve rod, 2-top cap, 3-second packing, 4-second seal cover, 5-first packing, 6-first seal cover, 7-gasket, 8-feed inlet, 9-valve body, 10-fixing bolt, 11-bottom cap, 12-sealing gasket, 13-first slide bearing, 14-thrust bearing, 15-valve seat, 16-spring seat, 17-spring, 18-sphere, 19-graphite ring, 20-second slide bearing, 21-stud, 22-packing gland, 23-nut, 24-connector, 25-spring washer, 26-weld overlay.
Detailed Description
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.
Example 1
The double-ball double-filler high-frequency quick-opening ball valve, as shown in fig. 1, comprises: a seal assembly, a fill assembly, and an auxiliary assembly;
the sealing assembly comprises a valve body 9, two ends of the valve body 9 are provided with feed inlets 8, two groups of feed inlets 8 are communicated, the inner wall of the valve body 9 is rotatably provided with a ball 18, two groups of balls 18 are arranged in parallel, an opening is formed in the center of each ball 18 in a penetrating mode, a bottom cover 11 is detachably mounted on the outer wall of the bottom of the valve body 9 through bolt fixation, two groups of bottom covers 11 are arranged in parallel, the top end of each bottom cover 11 is connected inside the valve body 9, a first sliding bearing 13 is mounted on the outer wall of the top end of each bottom cover 11, a groove is formed in the bottom of each ball 18, the first sliding bearing 13 is connected in the groove, a thrust bearing 14 is arranged at the bottom of each ball 18, a valve rod 1 is fixedly arranged on the outer wall of the top of each ball 18 through welding, the valve rod 1 is rotatably arranged on one side of the valve body 9, a connector 24 is arranged on the top of each valve rod 1, a second sliding bearing 20 is matched with the valve body 9, a gasket 7 is arranged on the inner wall of one side of the valve body 9, and the gasket 7 is matched with the second sliding bearing 20;
when the device is used, the handle or the motor is connected through the connector 24, the control valve rod 1 rotates, the device is connected through the feed inlet 8 at one end of the valve body 9, the other end of the device is connected with the conveying pipeline, the ball 18 is driven to rotate through the rotation of the control valve rod 1, the opening is leaked through the rotation of the ball 18, raw materials enter the valve body 9 and are conveyed through the opening formed in the ball 18, and when conveying is stopped, the ball 18 is controlled to rotate, the opening is hidden through rotation, so that materials cannot pass, and conveying is stopped.
The filling assembly comprises a first sealing sleeve 6, wherein two groups of sealing sleeves 6 are arranged, the bottom of each sealing sleeve 6 is fixed on the outer wall of the top of a valve body 9 through bolts, a gap for a valve rod 1 to pass through is formed in the center of each sealing sleeve 6, a first filler 5 is arranged on the inner wall of each sealing sleeve 6, the first filler 5 is matched with the valve rod 1, a stud 21 is arranged at the top of each sealing sleeve 6, a plurality of groups of studs 21 are arranged, a filler gland 22 is arranged through the stud 21 arranged at the top of each sealing sleeve 6, nuts 23 are detachably arranged at the end of each stud 21, and the bottom of each filler gland 22 props against the corresponding first filler 5;
the gap between the valve rod 1 and the first sealing sleeve 6 is filled by installing the first packing 5, particles are prevented from entering the interior to be accumulated, the device is blocked when more particles are accumulated, the cleaning difficulty is high, the packing gland 22 is fixed by the installing nut 23, and the first packing 5 is prevented from falling under the influence of pressure when the packing is propped against the first packing 5 to be prevented from falling off;
the auxiliary assembly comprises springs 17, wherein the springs 17 are provided with a plurality of groups and are respectively fixed on the inner wall of the valve body 9, one side of each spring 17 is connected with a spring seat 16, one side of each spring seat 16 is fixedly provided with a valve seat 15, the valve seats 15 are matched with the spheres 18, and the two groups of spheres 18 are respectively arranged on two sides of each sphere;
when the ball valve is used, the gap between the valve seat 15 and the ball 18 is closed by the joint of the valve seat 15 and the ball 18, so that the problem that when conveying is stopped, materials enter the interior through the gap at one side of the ball 18 to cause sealing failure is avoided, and when the ball 18 is rotated, the valve seat 15 can move along with the joint of the ball 181 all the time by the joint of the spring 17 and the spring seat 16;
in order to further increase the tightness, as shown in fig. 1, the outer wall of the top of the first sealing sleeve 6 is fixed and detachably provided with a second sealing sleeve 4 through bolts, the second sealing sleeve 4 is matched with the valve rod 1, a second packing 3 is arranged in the second sealing sleeve 4, the second packing 3 is matched with the valve rod 1, two groups of studs 21 are arranged at the top of the second sealing sleeve 4, a group of packing covers 22 are arranged through the studs 21, the bottom of each packing cover 22 props against the second packing 3, and nuts 23 are detachably arranged at the top ends of the studs 21;
when the valve is used, a double-filler structure is formed through the cooperation of the second sealing sleeve 4 and the second filler 3 for secondary protection, when the first group of fillers fail, the second group of fillers can still be normally used, the sealing performance is improved, the service life and the reliability of the valve are prolonged, and when the valve is stressed, the second filler 3 is propped against the filler gland 22 to prevent the second filler from falling off;
for fixing, as shown in fig. 1, a top cover 2 is fixedly arranged on the outer wall of the top of the second sealing sleeve 4 through bolts, and a gap for the valve rod 1 to pass through is formed in the center of the top cover 2;
when in use, the sealing sleeve 5 is fixed by installing the top cover 2, and the packing is sealed while the sealing sleeve is fixed, so that foreign matters are prevented from entering, and meanwhile, the sealing sleeve is prevented from being directly contacted with the outside, the influence of the outside environment is prevented, and the service life is reduced;
in order to increase the service life, as shown in fig. 2, the surface of the ball 18 is uniformly sprayed with a PVD coating, and the valve seat 15 is also sprayed with a PVD coating;
when in use, PVD coating with the thickness more than or equal to 0.8mm is sprayed on the surfaces of the ball body 18 and the valve seat 15, so that the surface hardness is more than or equal to HRC68, the coating has enough strength, the bonding force strength is more than 70MPa, the hardness, toughness, high-temperature abrasion resistance and low friction coefficient of the sealing surface are improved, silicon powder abrasion resistance is realized, the hardness and service life are improved by spraying PVD, and the sealing performance can be ensured under the condition that the valve seat 15 is washed by a granular medium. The PVD coating improves the wear resistance of the surface, so that the hardness of the PVD coating is higher, the friction coefficient is low, the lubricity of the PVD coating is good, and the chemical corrosion resistance is improved;
in order to prevent the ball from being blocked during use, as shown in fig. 1 and 6, a graphite ring 19 is arranged above the ball 18, the graphite ring 19 is matched with the valve rod 1, and the graphite ring 19 seals the joint of the valve rod 1 and the ball 18;
when the self-sealing valve is used, the valve rod 1 is in a self-sealing structure through the graphite ring 19, and when the valve rod 1 is pushed to rise by pressure, the sealing structure formed through the graphite ring 19 effectively prevents particles from entering the interior and prevents the interior from being blocked due to more particles;
in order to facilitate installation and use, as shown in fig. 1, the feed inlets 8 at two ends of the valve body 9 are identical in size and symmetrical to each other;
when in use, the two groups of spheres 18 are provided with valve seats 15, and both ends can be used as feed inlets to be connected with equipment during installation, so that the installation direction does not need to be distinguished, and the installation of the device is more convenient and quicker;
for cleaning, as shown in fig. 5, the side, where the valve seat 15 is attached to the ball 18, is in a scraper type design;
when in use, the surface of the ball 18 is cleaned by the valve seat 15 which is attached to the ball 18 and is in a scraper type when the ball 18 is opened or closed, so that stains attached to the surface are scraped, and the phenomenon that the normal switch cannot be opened or closed after long-time cleaning is prevented.
Example 2
In order to avoid deformation under high-frequency use, referring to fig. 3, the dual-ball dual-filler high-frequency quick-opening ball valve is improved in this embodiment compared with embodiment 1 in that a weld overlay 26 is welded at the joint of the ball 18 and the valve rod 1, and the weld overlay 26 is made of STL cemented carbide;
when the ball valve is used, the joint of the ball 18 and the valve rod 1 is protected by the build-up welding layer 26 made of STL hard alloy, so that the strength of the joint is increased, abrasion and deformation in a high-frequency quick-opening working environment are avoided, and the service life is effectively prolonged.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The double-ball double-filler high-frequency quick-opening ball valve comprises a sealing assembly, a filling assembly and an auxiliary assembly, and is characterized in that the sealing assembly comprises a valve body (9), two ends of the valve body (9) are provided with feed inlets (8), two groups of feed inlets (8) are communicated, the inner wall of the valve body (9) is rotatably provided with a ball body (18), two groups of ball bodies (18) are arranged in parallel, the center of the ball body (18) is provided with an opening, the outer wall of the bottom of the valve body (9) is fixedly and detachably provided with a bottom cover (11) through a bolt, the bottom cover (11) is arranged in parallel, the top end of the bottom cover (11) is connected inside the valve body (9), the outer wall of the top end of the bottom cover (11) is provided with a first sliding bearing (13), the bottom of the ball body (18) is provided with a groove, the first sliding bearing (13) is connected in the groove, the bottom of the ball body (18) is provided with a thrust bearing (14), the outer wall of the top of the ball body (18) is provided with a valve rod (1) through welding fixation, one side of the valve rod (1) rotatably penetrates through the valve body (9), the top of the valve rod (1) is provided with a connector (24), the outer wall of the valve rod (1) is provided with a bottom end of the second sliding bearing (20) is provided with a thrust bearing (20), the second sliding bearing (20) is matched with the valve body (9) on one side of the valve body (9), the shim (7) is adapted to the second sliding bearing (20).
2. The double-ball double-filler high-frequency quick-opening ball valve according to claim 1, wherein the filling assembly comprises a first sealing sleeve (6), the first sealing sleeve (6) is provided with two groups, the bottom is fixed on the top outer wall of the valve body (9) through bolts, a gap for the valve rod (1) to pass through is formed in the center of the first sealing sleeve (6), a first filler (5) is arranged on the inner wall of the first sealing sleeve (6), the first filler (5) is matched with the valve rod (1), a stud (21) is arranged at the top of the first sealing sleeve (6), a plurality of groups of studs (21) are arranged, a filler gland (22) is arranged through the studs (21) arranged at the top of the first sealing sleeve (6), nuts (23) are detachably arranged at the ends of the studs (21), and the bottoms of the filler glands (22) abut against the first filler (5).
3. The double-ball double-filler high-frequency quick-opening ball valve according to claim 1, wherein the auxiliary assembly comprises springs (17), the springs (17) are provided with a plurality of groups and are respectively fixed on the inner wall of the valve body (9), one side of each spring (17) is connected with a spring seat (16), one side of each spring seat (16) is fixedly provided with a valve seat (15), the valve seats (15) are matched with the spheres (18), and the two groups of spheres (18) are respectively arranged on two sides of each sphere.
4. The double-ball double-filler high-frequency quick-opening ball valve according to claim 2, wherein the outer wall of the top of the first sealing sleeve (6) is detachably provided with a second sealing sleeve (4) through bolt fixation, the second sealing sleeve (4) is matched with the valve rod (1), a second filler (3) is arranged in the second sealing sleeve (4), the second filler (3) is matched with the valve rod (1), two groups of studs (21) are arranged at the top of the second sealing sleeve (4), a group of packing gland (22) is arranged through the studs (21), the bottom of the packing gland (22) props against the second filler (3), and nuts (23) are detachably arranged at the top ends of the studs (21).
5. The double-ball double-packing high-frequency quick-opening ball valve according to claim 4, wherein a top cover (2) is fixedly arranged on the outer wall of the top of the second sealing sleeve (4) through bolts, and a gap for a valve rod (1) to pass through is formed in the center of the top cover (2).
6. The double-ball double-filler high-frequency quick-opening ball valve according to claim 1, wherein the surface of the ball body (18) is uniformly sprayed with a PVD coating, and the valve seat (15) is also sprayed with the PVD coating.
7. The double-ball double-filler high-frequency quick-opening ball valve according to claim 1, wherein a graphite ring (19) is arranged above the ball body (18), the graphite ring (19) is matched with the valve rod (1), and the graphite ring (19) seals the joint of the valve rod (1) and the ball body (18).
8. The double-ball double-filler high-frequency quick-opening ball valve according to claim 1, wherein the feed inlets (8) at two ends of the valve body (9) are uniform in size and symmetrical to each other.
9. A double ball double packing high frequency quick open ball valve according to claim 3, characterized in that the side of the valve seat (15) which is attached to the ball body (18) is of a scraper type design.
10. The double-ball double-filler high-frequency quick-opening ball valve according to claim 1, wherein a build-up layer (26) is welded at the joint of the ball body (18) and the valve rod (1), and the build-up layer (26) is made of STL hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311463417.7A CN117329321A (en) | 2023-11-06 | 2023-11-06 | Double-ball double-filler high-frequency quick-opening ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311463417.7A CN117329321A (en) | 2023-11-06 | 2023-11-06 | Double-ball double-filler high-frequency quick-opening ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117329321A true CN117329321A (en) | 2024-01-02 |
Family
ID=89293313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311463417.7A Pending CN117329321A (en) | 2023-11-06 | 2023-11-06 | Double-ball double-filler high-frequency quick-opening ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117329321A (en) |
-
2023
- 2023-11-06 CN CN202311463417.7A patent/CN117329321A/en active Pending
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