CN113915368A - Novel ultra-high temperature fixed ball valve - Google Patents

Abstract

The invention discloses a novel ultra-high temperature fixed ball valve which comprises a valve cap, wherein a liner tube is fixedly connected to the inner wall of the valve cap, a disc spring is fixedly connected to the outer wall of the liner tube, a sealing ring is fixedly connected to the outer wall of the disc spring, a valve seat is fixedly connected to the inner wall of the sealing ring, a valve body is fixedly connected to the outer wall of the valve cap, a ball body is arranged on the inner wall of the valve body, a stuffing box is fixedly connected to the outer wall of the top of the valve body, and a valve rod is arranged on the inner wall of the stuffing box. The multiple combination is packed and can effectively prevent to pack because the outer hourglass that wearing and tearing appear, still has the resistance to high temperature, can not take place the metal bonding under the high temperature, has corrosion-resistant and shock-resistant characteristics simultaneously, and its floating structure guarantees that the spheroid is not stuck under high temperature, does not block dead effect, and the dish spring adopts the dish spring can improve the coefficient of rigidity of mechanism in the centre of bushing pipe and disk seat in the compensating system, reduces the influence of temperature to its performance, and the dish spring is fit for high temperature work more moreover.

Description

Novel ultra-high temperature fixed ball valve

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a novel ultrahigh-temperature fixed ball valve.

Background

The ball valve, the opening and closing piece (ball) is driven by the valve rod and rotates around the axis of the ball valve. The hard seal V-shaped ball valve can also be used for regulating and controlling fluid, wherein a V-shaped ball core of the hard seal V-shaped ball valve and a metal valve seat of the build-up welding hard alloy have strong shearing force, and the hard seal V-shaped ball valve is particularly suitable for media containing fibers, tiny solid particles and the like. The multi-way ball valve can flexibly control the confluence, the diversion and the switching of the flow direction of the medium on the pipeline, and can close any channel to connect the other two channels. The valve of this type should be generally installed horizontally in the pipeline. The ball valve is divided into: pneumatic ball valves, electric ball valves, manual ball valves.

However, the conventional apparatus has the following problems in use:

1. because the operational environment of ball valve is unusual complicated, often can be at high temperature and high pressure, be close to hydrogen, the high frequency, and work in the adsorptivity medium that contains the high rigidity, these mixed nature mediums very easily adsorb on spheroidal surface, can make the ball valve damage like this, the disk seat damage, make the sclerosis layer on the ball valve drop even, high temperature and high pressure, metal bonding and heat accumulation take place easily for carbide, lead to valve ball and disk seat sealing face to pull, especially operating temperature reaches when 450 degrees, fixed ball valve blocks extremely easily, and traditional floating ball can't accomplish two way seal under containing solid material, these circumstances have leaded to traditional ball valve not high temperature resistant environment and ball valve to be stained with and can't in time clear up after gluing the medium, the dead phenomenon of easy card.

2. The lower efficiency results from the simple design of conventional ball valves because of the slower flow rate.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a novel ultrahigh-temperature fixed ball valve which has the advantages of high temperature resistance, difficulty in blocking and high flow speed.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel fixed ball valve of ultra-temperature, includes the valve cap, the inner wall fixedly connected with bushing pipe of valve cap, the outer wall fixedly connected with dish spring of bushing pipe, the outer wall fixedly connected with sealing ring of dish spring, the inner wall fixedly connected with disk seat of sealing ring, the outer wall fixedly connected with valve body of valve cap, the inner wall of valve body is provided with the spheroid, the top outer wall fixedly connected with stuffing box of valve body, the inner wall of stuffing box is provided with the valve rod, the inner wall of valve rod is provided with first axle sleeve, the outer wall of valve rod is provided with the second axle sleeve, the outer wall of second axle sleeve is provided with packing assembly, packing assembly's outer wall is provided with the packing and presses the cover, the outer wall that packs and presses the cover is provided with the packing clamp plate.

Through the technical scheme, the valve rod surface is through the sclerosis processing, the packing subassembly has the resistance to high temperature, the spheroid adopts special carbide picture layer, metal bonding can not take place under the high temperature, its floating structure guarantees that the spheroid is not stuck under the high temperature, the dead effect of non-sticking, adopt the dish spring can improve the rigidity coefficient of mechanism among the compensating system, reduce the temperature and be fit for high temperature work more to the influence of its performance, the validity of scraper is guaranteed to the dish spring, what the scraper of spheroidal both sides adopted is two scraper designs, when controlling the spheroid pivoted like this, spheroidal both sides will rub with the scraper simultaneously, medium clearance to on the spheroid like this will become more timely.

Preferably, the ball body comprises a round ball, the inner wall of the round ball is provided with an arch groove, and the inner wall of the round ball is provided with a socket.

Through above-mentioned technical scheme, bow-shaped decompression groove design, the medium can improve the velocity of flow with bow groove friction when the ball mouth is being passed through, has reduced the medium and has erodeed the damage to spheroidal, and notched existence has increased the thickness of ball mouth simultaneously, has also prolonged spheroidal life.

Preferably, the valve cap includes a first valve member, and a first connection hole is opened in an inner wall of the first valve member.

Through the technical scheme, the valve cap is an integral part of the whole valve and is connected with other parts through the first connecting hole, and meanwhile, the scraper is installed inside the valve cap.

Preferably, the valve body comprises a second valve member, a second connecting hole is formed in the inner wall of the second valve member, and an upper connecting hole is formed in the top of the inner wall of the second valve member.

Through above-mentioned technical scheme, the valve body is the biggest component part of volume in the whole valve, and wherein the second connecting hole is connected with first connecting hole, goes up the connecting hole and is connected with the third connecting hole.

Preferably, the stuffing box comprises a third valve element, and a third connecting hole is formed in the inner wall of the third valve element.

Through above-mentioned technical scheme, the stuffing box is the constitutional part at the top of whole valve for installation axle valve rod, and the third connecting hole wherein is used for with the hole of other constitutional parts.

Preferably, the inner wall of the first connecting hole is in threaded connection with a fixing bolt, and the inner wall of the first connecting hole is fixedly connected with the inner wall of the second connecting hole through the arranged fixing bolt.

Through the technical scheme, the fixing bolt is a part which is made of the screw rod and the nut and used for connecting objects, and the first valve piece is used for fixedly connecting the valve cap and the valve body by enabling the fixing bolt to penetrate through the first connecting hole and the second connecting hole.

Preferably, the inner wall of the upper connecting hole is fixedly connected with the inner wall of the third connecting hole through a fixing bolt.

Through the technical scheme, the upper connecting hole and the third connecting hole are connected in series by using the fixing bolt in the connection of the valve body and the stuffing box.

Preferably, the packing pressing plate comprises a plate body, an opening is formed in the inner wall of the plate body, and the inner wall of the plate body is fixedly connected with the inner wall of the third valve through a set fixing bolt.

Through the technical scheme, the open hole in the packing pressing plate is used for penetrating the valve rod, the packing pressing sleeve is pressed by fixing the plate body on the packing box through the fixing bolt, so that the packing pressing sleeve has stability, the effect of pressing the packing pressing sleeve can be achieved in the contact process of the packing pressing sleeve, and the stability of the packing pressing sleeve is improved.

Compared with the prior art, the invention has the beneficial effects that:

1. the surface of the valve rod is hardened and strictly smooth finish-treated, and is more durable and has high-efficiency heat-conducting capacity, the packing component is fixed between the second shaft sleeve and the packing pressing sleeve, the multiple combined packing can effectively prevent the packing from leaking due to abrasion, has resistance to high temperature and is faced with the phenomena of friction oxidation and the like, the sphere adopts a special hard alloy layer, can pass through gas, liquid and solid, cannot be subjected to metal bonding at high temperature, and has the characteristics of corrosion resistance and impact resistance, the floating structure ensures that the strength of the contact between the sphere and the valve wall after being heated and expanded is small and is not easy to be bonded, so that the effects of no jamming and no jamming at high temperature are achieved, the spring disc is arranged between the liner tube and the valve seat, the sealing ring plays a sealing role therein, the rigidity coefficient of the mechanism can be improved by adopting the disc spring in the compensation system, and the influence of the temperature on the performance is reduced, meanwhile, the performance can not be reduced due to the accumulation of materials, and the disc spring is more suitable for high-temperature work.

2. The dish spring has stronger rigidity coefficient, guarantee the validity of scraper, the adhesion wear, the metal coheres and erodes the influence to sealed face the biggest, unreasonable scraper design can produce the adhesion wear, what the scraper of spheroidal both sides adopted is two scraper designs, like this when control spheroid pivoted, spheroidal both sides will rub with the scraper simultaneously, medium clearance to on the spheroid like this will become more timely, the valve rod adopts the design of self-tightening bearing chamber, the accumulational problem of material can be solved to this kind of two wedge structures, the clamp plate that packs can press the cover to pack provides a pressure, thereby press the cover to pack for packing and provide a continuous pretightning force, can effectively compensate the temperature like this, pressure oscillation and filler wearing and tearing.

3. The spherical ball mouth part adopts the design of a unique bow-shaped pressure relief groove, and the medium can improve the flow velocity by rubbing with the bow groove when passing through the ball mouth, so that the instantaneous flow of the opening of the valve is improved by more than three times compared with the traditional structure, the scouring damage of the medium to the spherical body is greatly reduced, meanwhile, the thickness of the ball mouth is increased due to the existence of the notch, and the service life of the spherical body is also prolonged.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the main body of the present invention;

FIG. 3 is a schematic illustration of the exploded structure of the main body of the present invention;

FIG. 4 is a schematic view of a sphere structure according to the present invention;

FIG. 5 is a schematic view of the packing press plate configuration of the present invention;

FIG. 6 is a schematic illustration of a bonnet construction of the present invention;

FIG. 7 is a schematic view of the valve body structure of the present invention;

fig. 8 is a schematic diagram of the stuffing box structure of the present invention.

In the figure: 1. a bonnet; 2. a liner tube; 3. a disc spring; 4. a seal ring; 5. a valve seat; 6. a sphere; 7. a valve body; 8. a valve stem; 9. a first bushing; 10. a stuffing box; 11. a second shaft sleeve; 12. a packing assembly; 13. pressing and sleeving the filler; 14. a packing press plate; 15. fixing the bolt; 100. a first valve element; 101. a first connection hole; 600. a ball; 601. a bow groove; 602. a socket; 700. a second valve element; 701. a second connection hole; 702. an upper connecting hole; 1000. a third valve element; 1001. a third connection hole; 1400. a plate body; 1401. and (6) opening holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a novel ball valve is fixed to ultra-temperature, including valve cap 1, the inner wall fixedly connected with bushing pipe 2 of valve cap 1, the outer wall fixedly connected with dish spring 3 of bushing pipe 2, the outer wall fixedly connected with sealing ring 4 of dish spring 3, the inner wall fixedly connected with disk seat 5 of sealing ring 4, the outer wall fixedly connected with valve body 7 of valve cap 1, the inner wall of valve body 7 is provided with spheroid 6, the top outer wall fixedly connected with stuffing box 10 of valve body 7, the inner wall of stuffing box 10 is provided with valve rod 8, valve rod 8's inner wall is provided with primary shaft cover 9, valve rod 8's outer wall is provided with secondary shaft cover 11, secondary shaft cover 11's outer wall is provided with filler block 12, filler block 12's outer wall is provided with packing and presses cover 13, packing presses cover 13's outer wall to be provided with packing clamp plate 14.

In the embodiment, the surface of the valve rod 8 is hardened and strictly smooth finish-treated, and is more durable and has high-efficiency heat conduction capability, the packing component 12 is fixed between the second shaft sleeve 11 and the packing pressing sleeve 13, the multiple combined packing can effectively prevent the packing from leaking due to abrasion, has resistance to high temperature and faces the phenomena of friction oxidation and the like, the sphere 6 adopts a special hard alloy pattern layer, can pass through gas, liquid and solid, cannot be subjected to metal bonding at high temperature, and has the characteristics of corrosion resistance and impact resistance, the floating structure ensures that the strength of the contact between the sphere 6 and the valve wall after being heated and expanded is small and the sphere is not easy to be bonded, so that the effects of no jamming and no dead jamming at high temperature are achieved, the disc spring 3 is arranged between the liner tube 2 and the valve seat 5, the sealing ring 4 plays a sealing role therein, and the disc spring 3 adopted in the compensation system can improve the rigidity coefficient of the mechanism, the influence of temperature on the performance is reduced, meanwhile, the performance is not reduced due to the accumulation of materials, and the disc spring 3 is more suitable for high-temperature work, the disc spring 3 has a strong rigidity coefficient, the effectiveness of the scraper is ensured, the influence of adhesion abrasion, metal adhesion and scouring on a sealing surface is the largest, the unreasonable scraper design can generate the adhesion abrasion, the scrapers on the two sides of the ball body 6 adopt a double-scraper design, thus, when the ball body 6 is controlled to rotate, two sides of the ball body 6 can simultaneously rub against the scraper, so that the medium on the ball body 6 can be cleaned more timely, the valve rod 8 adopts a self-tightening bearing cavity design, the double wedge structure can solve the problem of material accumulation, the packing pressure plate 14 can provide pressure to the packing pressure sleeve 13, thus, a continuous pre-tightening force is provided for the packing press sleeve 13, which can effectively compensate for temperature, pressure fluctuations and packing wear.

Specifically, the ball body 6 includes a round ball 600, an arch groove 601 is formed on the inner wall of the round ball 600, and a socket 602 is formed on the inner wall of the round ball 600.

In this embodiment, the ball mouth of the ball body 6 adopts a unique bow-shaped pressure relief groove design, and the medium rubs with the bow groove 601 when passing through the ball mouth, so that the flow rate can be increased, the instantaneous flow rate of the valve opening is increased by more than three times compared with the traditional structure, the scouring damage of the medium to the ball body 6 is greatly reduced, meanwhile, due to the existence of the notch, the thickness of the ball mouth is increased, and the service life of the ball body 6 is also prolonged.

Specifically, the bonnet 1 includes a first valve member 100, and a first connection hole 101 is formed in an inner wall of the first valve member 100.

In this embodiment, the valve cap 1 is a component of the whole valve, and is connected with other parts through the first connection hole 101 therein, and the inside of the valve cap 1 is used for installing a scraper, and the inner wall of the first valve member 100 and the bottom of the disc spring 3 are provided with dust discharging grooves, so as to prevent stacking of materials, and the passage in the first valve member 100 is hardened to resist the scouring of media.

Specifically, the valve body 7 includes a second valve member 700, a second connection hole 701 is formed in an inner wall of the second valve member 700, and an upper connection hole 702 is formed in a top portion of the inner wall of the second valve member 700.

In this embodiment, the valve body 7 is a largest-volume component of the whole valve, wherein the second connection hole 701 is connected to the first connection hole 101, the upper connection hole 702 is connected to the third connection hole 1001, the inner wall of the second valve member 700 and the bottom of the disc spring 3 are provided with dust discharging grooves, so as to prevent stacking of materials, and the inner channel of the second valve member 700 is hardened to resist the erosion of media.

Specifically, the stuffing box 10 includes a third valve 1000, and a third connecting hole 1001 is formed in an inner wall of the third valve 1000.

In this embodiment, the stuffing box 10 is a component of the top of the integrated valve for mounting the shaft stem 8, wherein the third connecting hole 1001 is a hole for connecting with other components, and the channel in the third valve 1000 is hardened to resist the scouring of medium.

Specifically, the inner wall of the first connection hole 101 is connected with the fixing bolt 15 in a threaded manner, and the inner wall of the first connection hole 101 is fixedly connected with the inner wall of the second connection hole 701 through the arranged fixing bolt 15.

In this embodiment, the fixing bolt 15 is a component made of a screw and a nut and used for connecting an object, and the first valve member 100 is the fixing bolt 15 which passes through the first connecting hole 101 and the second connecting hole 701 to fixedly connect the bonnet 1 and the valve body 7.

Specifically, the inner wall of the upper connection hole 702 is fixedly connected to the inner wall of the third connection hole 1001 by the fixing bolt 15.

In this embodiment, upper connection hole 702 and third connection hole 1001 may be connected in series by fixing bolt 15 in connection between valve body 7 and stuffing box 10.

Specifically, the packing pressing plate 14 includes a plate body 1400, an opening 1401 is formed on an inner wall of the plate body 1400, and the inner wall of the plate body 1400 is fixedly connected to the inner wall of the third valve element 1000 by a fixing bolt 15.

In this embodiment, the opening 1401 of the packing press plate 14 is used to pass through the valve rod 8, and the fixing bolt 15 is used to fix the plate 1400 on the packing box 10 to provide stability, so that the packing press sleeve 13 can be pressed during the contact process of the packing press sleeve 13, thereby improving the stability of the packing press sleeve 13.

The working principle and the using process of the invention are as follows: because the working environment of the ball valve is extremely complex, the ball valve can often work in high-temperature high-pressure, hydrogen-critical and high-frequency adsorptive media with high hardness, the mixed media are extremely easy to adsorb on the surface of the ball body 6, so that the ball valve is damaged, the valve seat 5 is damaged, even a hardened layer on the ball valve falls off, under high temperature and high pressure, the hard alloy is easy to generate metal adhesion and heat accumulation to cause the damage of the sealing surface of the valve ball and the valve seat 5, particularly when the operating temperature reaches 450 ℃, the fixed ball valve is very easy to block, and the traditional floating ball cannot complete bidirectional sealing under the condition of containing solid materials, the conditions cause the phenomenon that the traditional ball valve cannot be cleaned in time and is easy to block when the surface of the valve rod 8 is not subjected to high-temperature resistant environment and the surface of the ball valve is not subjected to hardening treatment and strict finish treatment, so that the ball valve is firmer and more durable and has high-efficiency heat conduction capability, the packing component 12 is fixed between the second shaft sleeve 11 and the packing pressing sleeve 13, the multiple combined packing can effectively prevent the packing from leaking due to abrasion, has resistance to high temperature and is faced with the phenomena of friction oxidation and the like, the ball body 6 adopts a special hard alloy pattern layer and can pass through gas, liquid and solid, metal bonding can not occur at high temperature, and simultaneously has the characteristics of corrosion resistance and impact resistance, the floating structure ensures that the ball body 6 still has small contact force with a valve wall after being heated and expanded and is not easy to be attached, thereby achieving the effects of no jamming and no deadlocking at high temperature, the disc spring 3 is arranged between the liner tube 2 and the valve seat 5, the sealing ring 4 plays a sealing role therein, the disc spring 3 adopted in the compensation system can improve the rigidity coefficient of the mechanism, reduce the influence of temperature on the performance thereof, simultaneously, can not reduce the performance due to the accumulation of materials, and is more suitable for high-temperature work, the disc spring 3 has a strong rigidity coefficient, the effectiveness of the scraper is ensured, the influence of adhesion abrasion, metal adhesion and scouring on a sealing surface is the largest, the unreasonable scraper design can generate the adhesion abrasion, the scrapers on the two sides of the ball body 6 adopt a double-scraper design, so that when the ball body 6 is controlled to rotate, the two sides of the ball body 6 can simultaneously rub against the scrapers, the medium on the ball body 6 can be cleaned more timely, the valve rod 8 adopts a self-tightening bearing cavity design, the double-wedge structure can solve the problem of material accumulation, the packing pressure plate 14 can provide pressure for the packing pressure sleeve 13, so that a continuous pretightening force is provided for the packing pressure sleeve 13, the temperature, pressure fluctuation and packing abrasion can be effectively compensated, the traditional ball valve is simple in design, the flow rate is slow, the efficiency is low, and the ball mouth part of the ball body 6 adopts a unique arch-shaped pressure relief groove design, the medium can improve the flow rate by rubbing with the arch groove 601 when passing through the ball mouth, thereby the instantaneous flow of the valve opening is improved by more than three times compared with the traditional structure, the washing damage of the medium to the ball body 6 is greatly reduced, meanwhile, the existence of the cut increases the thickness of the ball mouth, and the service life of the ball body 6 is also prolonged, the valve cap 1 is a component of the whole valve, and is connected with other parts through the first connecting hole 101, meanwhile, the inside of the valve cap 1 is used for installing a scraper, the valve body 7 is a component with the largest volume in the whole valve, wherein, the second connecting hole 701 is connected with the first connecting hole 101, the upper connecting hole 702 is connected with the third connecting hole 1001, the packing box 10 is a component at the top of the whole valve and is used for the valve rod 8, wherein, the third connecting hole 1001 is used for being connected with other components, the fixing bolt 15 is a part which is made of a screw rod and a nut and is used for connecting with an object, the first valve member 100 is such that the fixing bolt 15 passes through the first connecting hole 101 and the second connecting hole 701 to fixedly connect the bonnet 1 and the valve body 7, and the fixing bolt 15 is used to connect the upper connecting hole 702 and the third connecting hole 1001 in series in the connection between the valve body 7 and the stuffing box 10.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a novel ultra-high temperature fixed ball valve, includes valve cap (1), its characterized in that: the inner wall fixedly connected with bushing pipe (2) of valve cap (1), the outer wall fixedly connected with dish spring (3) of bushing pipe (2), the outer wall fixedly connected with sealing ring (4) of dish spring (3), the inner wall fixedly connected with disk seat (5) of sealing ring (4), the outer wall fixedly connected with valve body (7) of valve cap (1), the inner wall of valve body (7) is provided with spheroid (6), the top outer wall fixedly connected with packing box (10) of valve body (7), the inner wall of packing box (10) is provided with valve rod (8), the inner wall of valve rod (8) is provided with first axle sleeve (9), the outer wall of valve rod (8) is provided with second axle sleeve (11), the outer wall of second axle sleeve (11) is provided with packing assembly (12), the outer wall of packing assembly (12) is provided with packs and presses cover (13), and a packing pressing plate (14) is arranged on the outer wall of the packing pressing sleeve (13).

2. The novel ultra-high temperature fixed ball valve according to claim 1, characterized in that: the ball body (6) comprises a ball body (600), an arch groove (601) is formed in the inner wall of the ball body (600), and a socket (602) is formed in the inner wall of the ball body (600).

3. The novel ultra-high temperature fixed ball valve according to claim 1, characterized in that: the valve cap (1) comprises a first valve piece (100), and a first connecting hole (101) is formed in the inner wall of the first valve piece (100).

4. The novel ultra-high temperature fixed ball valve according to claim 3, characterized in that: the valve body (7) comprises a second valve piece (700), a second connecting hole (701) is formed in the inner wall of the second valve piece (700), and an upper connecting hole (702) is formed in the top of the inner wall of the second valve piece (700).

5. The novel ultra-high temperature fixed ball valve according to claim 4, characterized in that: the stuffing box (10) comprises a third valve piece (1000), and a third connecting hole (1001) is formed in the inner wall of the third valve piece (1000).

6. The novel ultra-high temperature fixed ball valve according to claim 5, characterized in that: the inner wall threaded connection of first connecting hole (101) has fixing bolt (15), the inner wall of first connecting hole (101) and the inner wall of second connecting hole (701) are through fixing bolt (15) fixed connection who sets up.

7. The novel ultra-high temperature fixed ball valve according to claim 6, characterized in that: the inner wall of the upper connecting hole (702) is fixedly connected with the inner wall of the third connecting hole (1001) through a set fixing bolt (15).

8. The novel ultra-high temperature fixed ball valve according to claim 7, characterized in that: the packing pressing plate (14) comprises a plate body (1400), an opening (1401) is formed in the inner wall of the plate body (1400), and the inner wall of the plate body (1400) is fixedly connected with the inner wall of the third valve element (1000) through a set fixing bolt (15).

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