CN105422900A - Ball valve with non-contact valve ball and valve seats during rotation - Google Patents
Ball valve with non-contact valve ball and valve seats during rotation Download PDFInfo
- Publication number
- CN105422900A CN105422900A CN201510930955.1A CN201510930955A CN105422900A CN 105422900 A CN105422900 A CN 105422900A CN 201510930955 A CN201510930955 A CN 201510930955A CN 105422900 A CN105422900 A CN 105422900A
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- China
- Prior art keywords
- valve
- spheroid
- valve seat
- ball valve
- lobe plate
- Prior art date
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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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
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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
- 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
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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
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Abstract
The invention provides a ball valve with non-contact valve ball and valve seats during rotation. The ball valve comprises a valve body, a ball body arranged in the valve body, a valve rod fixedly connected with the ball body to drive the ball body to rotate, two cam plates and two valve seats, wherein the two valve seats are correspondingly arranged at a first side and a second side of the ball body; and the two cam plates are correspondingly arranged at a third side and a fourth side of the ball body, and each cam plate is fixedly connected with the ball body and extends towards the corresponding valve seat, so as to separate the corresponding valve seat from the ball body. According to the invention, the cam plates are additionally arranged between the valve seats and the ball body, when the valve rod is rotated to rotate the ball body, the two valve seats located at the first side and the second side of the ball body are ejected away by the cam plates fixed at the third side and the fourth side of the ball body, the valve seats do not contact with the ball body during the rotation of the ball body, and a friction force between the spherical surface of the ball body and the sealing surfaces of each valve seat is avoided, thus the harmful friction force between the ball body and each valve seat during the rotation of the ball body is fundamentally eliminated.
Description
Technical field
The present invention relates to technical field of hydraulic elements, especially relate to a kind of valve ball valve seat and rotate non-contact type ball valve.
Background technique
Fixing spherical ball valve is commercial Application one of valve the most widely.In fixing spherical ball valve, spheroid has valve rod, back shaft, and the two is fixed on valve body, and ball position is fixed, and hydrodynamic pressure can not make it produce displacement.Spheroid both sides are valve seats, and valve seat presses to spheroid by means of the thrust of spring and fluid, sets up seal pressure.
The major function of this valve cuts off or connects ducted fluid passage, on valve rod, apply certain torque by handle or drive unit and pass to spheroid, make its 90-degree rotation, the through hole of spheroid overlaps with valve channel center line or vertical, to realize the action of valve wide open or complete shut-down.
Valve is in the process of opening or close, spheroid rotates, valve seat compresses spheroid under fluid pressure difference and initial tension of spring effect, very large frictional force is produced between spheroid and the contact surface of valve seat, this frictional force makes spheroid sphere and sealing surface of seat generation wear and tear and part of damage, finally cause the seal failure of valve, and make the rotation of spheroid 4 produce very large friction torque.
In order to reduce this friction, general adopt at spherome surface and sealing surface of seat spraying is valuable, high-strength wear-resistant alloy or improve machining accuracy, but this method produce little effect.
How reducing to greatest extent and eliminate this harmful frictional force even completely, is those skilled in the art's technical issues that need to address.
Summary of the invention
A kind of valve ball valve seat is the object of the present invention is to provide to rotate non-contact type ball valve, to reduce the frictional force eliminating the evil between valve seat and spheroid even completely to greatest extent.
The invention provides a kind of valve ball valve seat and rotate non-contact type ball valve, comprising: valve body, the spheroid be arranged in described valve body, be fixedly connected with the valve rod driving described spheroid to rotate, two described lobe plates and two valve seats with described spheroid;
Described spheroid has the first side and the second side that are oppositely arranged, and the 3rd side be oppositely arranged and the 4th side;
Wherein, two corresponding the first side and the second sides being arranged on described spheroid of described valve seat; Two described lobe plate correspondences are arranged on the 3rd side and the 4th side of described spheroid, and each described lobe plate is all fixedly connected with described spheroid and extends towards described valve seat, described valve seat and described spheroid to be separated.
Further, the upper-end surface of described spheroid and lower end surface are respectively equipped with step surface, described lobe plate is fixedly connected with described step surface.
Further, described lobe plate is removably connected with described spheroid.
Further, described spheroid and described lobe plate are integral type structure.
Further, the center of described lobe plate is provided with circular hole, and described spheroid is arranged at described circular hole.
Further, the described lobe plate depressed part that comprises two curved portions respect to one another and be connected between two described curved portions.
Further, also comprise the back shaft be fixedly connected with described valve body, described valve rod and described back shaft correspondence are arranged on the 3rd side and the 4th side of described spheroid;
Described back shaft is connected with described spheroid, is provided with valve gap outside described valve seat, is provided with seating spring between described valve seat and valve gap.
Further, the outside of described valve seat is provided with seal groove, is provided with seal ring in described seal groove.
Further, one end of described valve body is provided with stuffing box, and the bottom of described stuffing box is connected with the end winding support of described valve body.
Further, the inwall of described valve body is provided with step, and bottom and the described step of described stuffing box form groove; Described valve rod is provided with boss, and described boss embeds in described groove.
The present invention has following beneficial effect:
(1) the present invention sets up lobe plate between valve seat and spheroid, lobe plate is fixedly connected with spheroid can synchronous rotary, when rotation valve rod is to make spheroid rotate, be positioned at spheroid first side and two, the second side valve seat is backed down by the lobe plate being fixed on spheroid the 3rd side and the 4th side, when spheroid rotates, valve seat does not contact with spheroid, frictional force between the sphere of spheroid and the sealing surface of valve seat has no way of producing, so just fundamentally eliminate harmful frictional force when spheroid rotates and between valve seat, avoid spheroid and valve seat damage, substantially prolongs the working life that this valve ball valve seat rotates non-contact type ball valve.
When spheroid rotates close to 90 degree, lobe plate and valve seat end face disengage, and valve seat is adjacent to spheroid under the thrust of seating spring power and fluid, maintenance sealing state.
(2) the present invention is owing to eliminating harmful frictional force when spheroid rotates and between valve seat, eliminate the friction torque be subject to when spheroid rotates, reduce the resistance suffered by spheroid rotation, to the valve of band drive unit, the drive unit of selection of small can carry out actuate valve stem and rotate, and expensive high pulling torque drive unit (some valve actuator price is greater than the price of valve itself) need not be used, reduce cost of production; Reduce drive unit energy consumption simultaneously, valve operation can be made light flexibly.
(3) valve ball valve seat provided by the invention rotates non-contact type ball valve owing to reducing the spheroid frictional force suffered when rotating, and avoids valve components and mutually sinters because sending out friction.
(4) valve ball valve seat provided by the invention rotates non-contact type ball-valve structure simply, designs ingenious, and manufacture simple, cost is low, can be widely used in other valve similar structure, and in the similar device of machinery.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the valve ball valve seat rotation non-contact type ball valve that Fig. 1 provides for an embodiment of the present invention;
Fig. 2 is the schematic cross-section one of the lobe plate of Fig. 1;
Fig. 3 is the schematic cross-section two of the lobe plate of Fig. 1.
Reference character:
1-valve gap; 2-valve body;
3-back shaft; 4-spheroid;
6-lobe plate; 61-tapped hole;
6a-curved portions; 6b-depressed part;
7-seating spring; 8-valve seat;
9-flat key; 10-valve rod;
11-stuffing box; 12-filler;
13-gland; 91-boss.
Embodiment
Be clearly and completely described technological scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.Wherein, term " primary importance " and " second place " are two different positions.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
The structural representation of the valve ball valve seat rotation non-contact type ball valve that Fig. 1 provides for an embodiment of the present invention; Fig. 2 is the schematic cross-section one of the lobe plate of Fig. 1; Fig. 3 is the schematic cross-section two of the lobe plate of Fig. 1.
The invention provides a kind of valve ball valve seat and rotate non-contact type ball valve, as shown in Figure 1 to Figure 3, this valve ball valve seat rotates non-contact type ball valve and comprises: valve body 2, the spheroid 4 be arranged in described valve body 2, the described lobe plate 6 of valve rod 10, two being fixedly connected with described spheroid 4 to drive described spheroid 4 to rotate and two valve seats 8; Described spheroid 4 has the first side and the second side that are oppositely arranged, and the 3rd side be oppositely arranged and the 4th side; Wherein, two described valve seat 8 correspondences are arranged on the first side and second side of described spheroid 4; Two described lobe plate 6 correspondences are arranged on the 3rd side and the 4th side of described spheroid 4, and each described lobe plate 6 is all fixedly connected with described spheroid 4 and extends towards described valve seat 8, to be separated with described spheroid 4 by described valve seat 8.
In FIG, the first side is left side, and the second side is right side, and the 3rd side is upside, and the 4th side is downside.
Wherein, lobe plate 6 can extend towards valve seat 8, and lobe plate 6 is with the process of spheroid 4 synchronous axial system, the outer surface of cam and the end face of valve seat 8 keep in touch, progressively back down valve seat 8, valve seat 8 is separated with spheroid 4, avoid producing between spheroid 4 and valve seat 8 rubbing.
The present invention sets up lobe plate 6 between valve seat 8 and spheroid 4, lobe plate 6 is fixedly connected with spheroid 4 can synchronous rotary, when rotation valve rod 10 is to make spheroid 4 rotate, two valve seats 8 being positioned at spheroid 4 first side and the second side are backed down by the lobe plate 6 being fixed on spheroid 4 the 3rd side and the 4th side, when spheroid 4 rotates, valve seat 8 does not contact with spheroid 4, frictional force between the sphere of spheroid 4 and the sealing surface of valve seat 8 has no way of producing, so just fundamentally eliminate harmful frictional force when spheroid 4 rotates and between valve seat 8, spheroid 4 and valve seat 8 is avoided to damage, substantially prolongs the working life that this valve ball valve seat rotates non-contact type ball valve.When spheroid rotates close to 90 degree, lobe plate and valve seat end face disengage, and valve seat is adjacent to spheroid under the thrust of seating spring power and fluid, maintenance sealing state.
In addition, the present invention is owing to eliminating harmful frictional force when spheroid 4 rotates and between valve seat 8, eliminate the friction torque be subject to when spheroid 4 rotates, reduce spheroid 4 and rotate suffered resistance, to the valve of band drive unit, the drive unit of selection of small can carry out actuate valve stem 10 and rotate, and expensive high pulling torque drive unit (some valve actuator price is greater than the price of valve itself) need not be used, reduce cost of production; Reduce drive unit energy consumption simultaneously, valve operation can be made light flexibly.
Valve ball valve seat provided by the invention rotates non-contact type ball valve owing to reducing spheroid 4 frictional force suffered when rotating, and avoids valve components and mutually sinters because sending out friction.
Valve ball valve seat provided by the invention rotates non-contact type ball-valve structure simply, designs ingenious, and manufacture simple, cost is low, can be widely used in other valve similar structure, and in the similar device of machinery.
Preferably, the upper-end surface (being positioned at the 3rd side of spheroid 4) of described spheroid 4 and lower end surface (being positioned at the 4th side of spheroid 4) are respectively equipped with step surface, and as shown in Figure 1, described lobe plate 6 is fixedly connected with described step surface.Because lobe plate 6 is tabular, therefore the end face of lobe plate 6 is plane, and the end face of lobe plate 6 contacts with the step surface of spheroid 4 and connects, and can increase the area of contact of lobe plate 6 and spheroid 4, improve the join strength between lobe plate 6 and spheroid 4, both guarantees firmly connect synchronous axial system all the time.
Because lobe plate 6 is in the process of rotating with spheroid 4, between meeting and valve seat 8, produce frictional force, meeting wear cam plate 6 gradually, for this reason, in the present embodiment, described lobe plate 6 is removably connected with described spheroid 4, to facilitate lobe plate 6 upon wear can dismounting and change easily in time.
Particularly, lobe plate 6 is by being threaded, and the various ways such as to be connected together realizes removably connecting.In the embodiment shown in Figure 2, lobe plate 6 is provided with multiple tapped hole 61, and lobe plate 6 is fixedly connected with spheroid 4 by the fastening piece such as screw, bolt through described tapped hole 61.
In addition, spheroid 4 and lobe plate 6 can be integral type structure, that is in the process of processing spheroid 4, are integrally formed described lobe plate 6.Integral structure is very firm, avoids spheroid 4 to rupture with the joint of lobe plate 6, improves the reliability that this valve seat 8 valve ball rotates non-contact type ball valve.
As shown in Figure 2, the center of described lobe plate 6 is provided with circular hole, and described spheroid 4 is arranged at described circular hole, and namely lobe plate 6 is set on spheroid 4.
When circular hole interference fit on described spheroid 4 with described lobe plate 6, being fixedly connected with of lobe plate 6 and spheroid 4 also can be realized.
As shown in Figure 3, preferably, the described lobe plate 6 depressed part 6b that comprises two curved portions 6a respect to one another and be connected between two described curved portions 6a.Depressed part 6b is towards the central concave of lobe plate 6.In the process that lobe plate 6 rotates, curved portions 6a contacts with valve seat 8, is backed down by valve seat 8 by curved portions 6a, because the area of contact between curved portions 6a and valve seat 8 is less, thus, the frictional force between curved portions 6a and valve seat 8 is also less, thus extends the working life of this valve.
Particularly, as shown in Figure 3.Described curved portions 6a can be circular arc.
Key technology of the present invention is the quasi spline of lobe plate 6, wherein, lobe plate 6 struts valve seat 8 and wants this valve ball valve seat delayed to rotate an angle (the retardation angle α in Fig. 2) when non-contact type ball valve starts to open, and this valve ball valve seat rotate non-contact type ball valve close completely before an angle (the advance angle β namely in Fig. 2) time valve seat 8 just start spheroid 4 of fitting, retardation angle α and advance angle β need determine through calculation and test.Wherein, retardation angle α and advance angle β is acute angle.
That is, when this valve ball valve seat rotate non-contact type ball valve from open (namely spheroid starts to rotate) to spheroid rotation α angle after, lobe plate 6 just starts to strut valve seat 8, unaffected to ensure the sealing of this ball valve, rear valve base 8 be separated with spheroid 4.Before this valve ball valve seat rotation non-contact type ball valve is closed completely, valve seat 8 just starts to fit spheroid 4 until this ball valve is closed after rotating β angle by spheroid completely.
When the process that this ball valve is opened, spheroid 4 turns to 90 ° from zero degree, and when spheroid rotates within the scope of α-90 °, lobe plate 6 contacts with valve seat 8, is backed down by valve seat 8, spheroid 4 is separated with valve seat 8 thus is not subject to frictional force.
In the process that this ball valve is closed, spheroid 4 turns to zero degree from 90 °, when spheroid rotates in 90 ° of-β scopes, valve seat 8 does not contact with spheroid 4, to reduce the frictional force that spheroid 4 is subject to, when spheroid 4 continues to rotate to zero degree from β angle, valve seat 8 contacts with spheroid 4, ensures the sealability of this ball valve.
As shown in Figure 1, the valve ball valve seat that the present embodiment provides rotates non-contact type ball valve and comprises the back shaft 3 be fixedly connected with described valve body 2, and described valve rod 10 and described back shaft 3 correspondence are arranged on the 3rd side and the 4th side of described spheroid; Described back shaft 3 is connected with described spheroid, is provided with valve gap 1 outside described valve seat 8, is provided with seating spring 7 between described valve seat 8 and valve gap 1.Valve is when standard-sized sheet or closed positions, and the pressure of fluid and the elastic force of seating spring 7 make the sealing surface compact of valve seat 8 all the time on spheroid 4, play the effect of sealing.
When ball body of valve 4 rotates, lobe plate 6 synchronous axial system be fixedly connected with spheroid 4, lobe plate 6 outer surface and valve seat 8 end contact, progressively back down the valve seat 8 of spheroid 4 both sides, now rotating sphere 4, because spheroid 4 does not contact with valve seat 8, do not have frictional force.When spheroid 4 rotates close to 90 degree, lobe plate 6 and valve seat 8 end face disengage, and valve seat 8 is adjacent to spheroid 4 under the elastic force of seating spring 7 and the thrust of fluid, keep sealing state.
In addition, the outside of described valve seat 8 is provided with seal groove, is provided with seal ring in described seal groove.Seal ring, between valve seat 8 and valve gap 1, improves the sealability of valve.Seal ring is preferably rubber seal.The shape of seal ring can be specifically O type rubber seal.
See Fig. 1, one end of described valve body 2 is provided with stuffing box 11, and the bottom of described stuffing box 11 is connected with the end winding support of described valve body 2.
Particularly, as shown in Figure 1, stuffing box 11 is loaded on the top of valve body 2, and stuffing box 11 is built with filler 12, and the top of stuffing box 11 is provided with gland 13, compresses filler 12 seal by gland 13.Can be achieved a fixed connection by fastening pieces such as bolts between gland 13 and stuffing box 11.
Preferably, the inwall of described valve body 2 is provided with step, and bottom and the described step of described stuffing box 11 form groove; Described valve rod 10 is provided with boss 91, and described boss 91 embeds in described groove.This groove can be the U-type groove shown in Fig. 1.Boss 91 crimps in a groove, prevents valve rod 10 from producing axial displacement under the pressure of fluid and flies out.
As shown in Figure 1, valve rod 10 is equipped with on spheroid 4 top, valve rod 10 flat key 9 drives spheroid to rotate, valve rod 10 drives spheroid 4 to rotate by flat key 9, back shaft 3 is equipped with in spheroid 4 bottom, spheroid 4 is placed in valve body 2 central authorities, spheroid 4 is fixed on valve body 2 by valve rod 10 and back shaft 3, the pressure of fluid and the elastic force of seating spring 7 can not make it produce displacement, stuffing box 11 is loaded on valve body 2 top, stuffing box 11 is built with filler 12, compressed by gland 13 and seal, the groove of stuffing box 11 lower end pushes down the boss of valve rod 10, prevent from valve rod 10 from producing axial displacement under the pressure of fluid to fly out, two valve seats 8 are positioned at spheroid 4 both sides, valve seat 8 is installed in valve gap 1, seating spring 7 is placed between valve seat 8 and valve gap 1, the elastic force of seating spring 7 makes valve seat 8 be pressed on spheroid 4, seating spring 7 promotes valve seat with elastic force and is adjacent to spheroid 4, two lobe plate 6 symmetries are fixed on spheroid about 4 two step surface, with spheroid 4 synchronous axial system.
Last it is noted that above each embodiment is only in order to illustrate technological scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristics; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technological scheme.
Claims (10)
1. valve ball valve seat rotates a non-contact type ball valve, it is characterized in that, comprising: valve body, the spheroid be arranged in described valve body, be fixedly connected with the valve rod driving described spheroid to rotate, two described lobe plates and two valve seats with described spheroid;
Described spheroid has the first side and the second side that are oppositely arranged, and the 3rd side be oppositely arranged and the 4th side;
Wherein, two corresponding the first side and the second sides being arranged on described spheroid of described valve seat; Two described lobe plate correspondences are arranged on the 3rd side and the 4th side of described spheroid, and each described lobe plate is all fixedly connected with described spheroid and extends towards described valve seat, described valve seat and described spheroid to be separated.
2. valve ball valve seat according to claim 1 rotates non-contact type ball valve, and it is characterized in that, the upper-end surface of described spheroid and lower end surface are respectively equipped with step surface, and described lobe plate is fixedly connected with described step surface.
3. valve ball valve seat according to claim 1 rotates non-contact type ball valve, and it is characterized in that, described lobe plate is removably connected with described spheroid.
4. valve ball valve seat according to claim 1 rotates non-contact type ball valve, and it is characterized in that, described spheroid and described lobe plate are integral type structure.
5. the valve ball valve seat according to any one of claim 1-4 rotates non-contact type ball valve, and it is characterized in that, the center of described lobe plate is provided with circular hole, and described spheroid is arranged at described circular hole.
6. the valve ball valve seat according to any one of claim 1-4 rotates non-contact type ball valve, it is characterized in that, the depressed part that described lobe plate comprises two curved portions respect to one another and is connected between two described curved portions.
7. valve ball valve seat according to claim 1 rotates non-contact type ball valve, it is characterized in that, also comprises the back shaft be fixedly connected with described valve body, and described valve rod and described back shaft correspondence are arranged on the 3rd side and the 4th side of described spheroid;
Described back shaft is connected with described spheroid, is provided with valve gap outside described valve seat, is provided with seating spring between described valve seat and valve gap.
8. valve ball valve seat according to claim 7 rotates non-contact type ball valve, and it is characterized in that, the outside of described valve seat is provided with seal groove, is provided with seal ring in described seal groove.
9. the valve ball valve seat according to any one of claim 1-4 rotates non-contact type ball valve, and it is characterized in that, one end of described valve body is provided with stuffing box, and the bottom of described stuffing box is connected with the end winding support of described valve body.
10. valve ball valve seat according to claim 9 rotates non-contact type ball valve, and it is characterized in that, the inwall of described valve body is provided with step, and bottom and the described step of described stuffing box form groove; Described valve rod is provided with boss, and described boss embeds in described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930955.1A CN105422900A (en) | 2015-12-15 | 2015-12-15 | Ball valve with non-contact valve ball and valve seats during rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930955.1A CN105422900A (en) | 2015-12-15 | 2015-12-15 | Ball valve with non-contact valve ball and valve seats during rotation |
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| Publication Number | Publication Date |
|---|---|
| CN105422900A true CN105422900A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510930955.1A Pending CN105422900A (en) | 2015-12-15 | 2015-12-15 | Ball valve with non-contact valve ball and valve seats during rotation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889553A (en) * | 2016-07-04 | 2016-08-24 | 岳阳东方自控工程设备有限公司 | Ball valve with external mechanism for preventing valve rod from being blown out |
| RU203284U1 (en) * | 2020-10-22 | 2021-03-30 | Общество с ограниченной ответственностью «Восточная Арматурная Компания» | Ball valve |
| CN113404876A (en) * | 2021-07-06 | 2021-09-17 | 王春红 | Butterfly valve |
| CN113944773A (en) * | 2021-10-12 | 2022-01-18 | 浙江石化阀门有限公司 | Rotary rod sealing surface frictionless ball valve |
| CN114635999A (en) * | 2022-03-29 | 2022-06-17 | 山东大学 | Floating valve seat type ball valve driven by cam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676347A (en) * | 1995-08-31 | 1997-10-14 | Knox; Granville S. | Valve with adjustably pressurized sealing gaskets |
| CN201462043U (en) * | 2009-06-23 | 2010-05-12 | 四川格林流体控制设备有限公司 | Ceramic ball valve |
| CN102734486A (en) * | 2012-06-21 | 2012-10-17 | 镇江市铸造阀门厂有限公司 | Valve assembly sealing device of low temperature ball valve |
| CN103470804A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Safety level electric ball valve |
| CN205298625U (en) * | 2015-12-15 | 2016-06-08 | 岳阳东方自控工程设备有限公司 | Valve ball disk seat rotates contactless ball valve |
-
2015
- 2015-12-15 CN CN201510930955.1A patent/CN105422900A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676347A (en) * | 1995-08-31 | 1997-10-14 | Knox; Granville S. | Valve with adjustably pressurized sealing gaskets |
| CN201462043U (en) * | 2009-06-23 | 2010-05-12 | 四川格林流体控制设备有限公司 | Ceramic ball valve |
| CN102734486A (en) * | 2012-06-21 | 2012-10-17 | 镇江市铸造阀门厂有限公司 | Valve assembly sealing device of low temperature ball valve |
| CN103470804A (en) * | 2013-09-23 | 2013-12-25 | 清华大学 | Safety level electric ball valve |
| CN205298625U (en) * | 2015-12-15 | 2016-06-08 | 岳阳东方自控工程设备有限公司 | Valve ball disk seat rotates contactless ball valve |
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| CN105889553A (en) * | 2016-07-04 | 2016-08-24 | 岳阳东方自控工程设备有限公司 | Ball valve with external mechanism for preventing valve rod from being blown out |
| RU203284U1 (en) * | 2020-10-22 | 2021-03-30 | Общество с ограниченной ответственностью «Восточная Арматурная Компания» | Ball valve |
| CN113404876A (en) * | 2021-07-06 | 2021-09-17 | 王春红 | Butterfly valve |
| CN113944773A (en) * | 2021-10-12 | 2022-01-18 | 浙江石化阀门有限公司 | Rotary rod sealing surface frictionless ball valve |
| CN113944773B (en) * | 2021-10-12 | 2023-09-15 | 浙江石化阀门有限公司 | Rotary rod sealing surface friction-free ball valve |
| CN114635999A (en) * | 2022-03-29 | 2022-06-17 | 山东大学 | Floating valve seat type ball valve driven by cam |
| CN114635999B (en) * | 2022-03-29 | 2023-02-17 | 山东大学 | Floating valve seat type ball valve driven by cam |
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Application publication date: 20160323 |