CN208816703U - A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing - Google Patents
A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing Download PDFInfo
- Publication number
- CN208816703U CN208816703U CN201821260849.2U CN201821260849U CN208816703U CN 208816703 U CN208816703 U CN 208816703U CN 201821260849 U CN201821260849 U CN 201821260849U CN 208816703 U CN208816703 U CN 208816703U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- butterfly
- sealing
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 99
- 239000002184 metal Substances 0.000 title claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 33
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 17
- 150000002739 metals Chemical class 0.000 title claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 35
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007698 birth defect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 matter Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a kind of double plate double-valve-seat bidirectional metals or the butterfly valves of nonmetallic sealing, the butterfly valve includes driving device, joint chair, filler, gland, bottom cover, valve body, butterfly plate, upper valve shaft, lower valve shaft, axle sleeve, valve shaft pin, valve seat, valve seat pressing ring, tightening adjusts screw, the valve seat is metal or nonmetallic sealing ring, the butterfly plate includes axially symmetric spaced two disks, it is corresponded at closed position between each disk outer rim and valve flowing channel and is respectively equipped with a sealing pair, the sealing pair includes butterfly plate sealing surface and sealing surface of seat, the internal diameter of the valve seat can be opened by rotation tightening adjusting screw mobile three or more open type valve seat pressing rings squeeze valve seat and are adjusted.Design is scientific and reasonable for this butterfly valve structure, structure simple symmetric, can on-bne repair replace sealing element, cooperate under two way alternate artesian condition or independent role and then realize two-way equivalent sealing.
Description
Technical field
The utility model belongs to valve arrangement technical field, especially a kind of double plate double-valve-seat bidirectional metals or nonmetallic close
The butterfly valve of envelope, especially a kind of double plate two-seaters (movable sealing circle is arranged on valve body) metal or the sealing of nonmetallic two-way equivalent
Butterfly valve.
Background technique
Valve is the control unit in fluid delivery system, has cut-off, adjusting, water conservancy diversion, prevents adverse current, pressure stabilizing, shunting
Or the functions such as overflow pressure relief.For the valve of fluid control systems, from simplest shut-off valve to extremely complex robot control system(RCS)
Used in various valves, kind and specification are quite various.Valve can be used for controlling empty gas and water, steam, various corrosivity and be situated between
The flowing of the various types fluid such as matter, mud, oil product, liquid metal and radiating medium.Industrial valves door type is varied,
It is widely used in the industries such as petrochemical industry, food, pharmacy, water, electricity, the flow for primarily serving fluid media (medium) is adjusted to be made with cut-off
With.
Butterfly valve in the prior art is mostly iron and steel material quality, and most of valve bodies are cylindrical shape, and butterfly plate is mostly
The circular slab or similar round plate that single plate, curvature of the spinal column formula or single plate add tablet (or arc plate) to constitute, it is close for single sealing auxiliary structure
Stiffness member in envelope pair is that nonmetallic or metal material is constituted.The butterfly valve of double flat plate double seal assistant, one of sealing pair are non-
Metal material is made, i.e. the butterfly valve of soft sealing structure.Single sealing pair metallic seal butterfly valve is to realize two way seal function, design more
At Follow-up seal pair.The common feature of these butterfly valves is non-refractory environment, or cannot bear the effect of high pressure power media, or
Two way seal function is unreliable, that is, can not achieve the sealing under two-way same pressure stage；There are asymmetric on sealing mechanism for some
The birth defects of structure type make two way seal function that the consistent requirement of balance be not achieved.The metal of servo-actuated valve seat construction or
There is also the hidden danger that lag function fails for nonmetallic sealed butterfly valve, i.e., often occur with the extension of use time in engineering use
The phenomenon that valve seat movement is obstructed.In processing and manufacturing, some metallic seal butterfly valve major parts need to match manufacture in groups, and processing is tired
Difficulty, there is also non-interchangeable disadvantages.Though having double plate bimetallics or nonmetallic circle sealed butterfly valve, its metal or nonmetallic
Sealing ring is fastened on butterfly plate by pressing ring and screw clamping, and structure is complicated, easy to fall off, and butterfly plate sealing ring in open position is in
The High Velocity Area of medium is subject to wash away and damage.In short, the butterfly valve of the prior art high temperature, high pressure, strong corrosive media and
Under conditions of violent scour, sealing performance is subject to destroy, and causes media leaks, and valve service performance reduces or failure, makes
High parameter (heavy caliber, high pressure, high temperature resistant, high negotiability, two way seal) butterfly valve, especially bidirectional metal or nonmetal valve
The design, manufacture and engineer application of seat (valve seals) sealing pair butterfly valve are by severely restricts.
By retrieval, patent publication us relevant to present patent application is not yet found.
Utility model content
The purpose of the utility model is to overcome the shortcomings of original technology, and it is (movable close to provide a kind of double plate double-valve-seats
Seal be arranged on valve body) bidirectional metal or nonmetallic sealing butterfly valve, design is scientific and reasonable for the butterfly valve structure, structure is simple
Symmetrically, double seal assistant is in full symmetric state, and the accessory without mechanical connection on closure member, metal or nonmetallic valve body are close
Seal is in the low band of position of inner wall of the pipe surface dielectric flow velocity, low by medium degradation degree, fabricates easy, big mouth
Diameter, high negotiability, high pressure resistant, high temperature resistant or low temperature, corrosion-resistant, water conservancy diversion is stable, with small vibration, noise is low, long service life,
Can on-bne repair replace sealing element, cooperate under two way alternate artesian condition or independent role and then realize two-way equivalent sealing.
The utility model technical scheme applied to solve the technical problem is:
A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing, the butterfly valve include driving device, joint chair, fill out
Material, gland, bottom cover, valve body, butterfly plate, upper valve shaft, lower valve shaft, axle sleeve, valve shaft pin, valve seat, valve seat pressing ring, tightening adjust spiral shell
Nail, the driving device are connected setting by joint chair with gland, the interior setting filler of the gland, the gland
Valve body is coaxially disposed between bottom cover, the valve body is flexibly connected by upper valve shaft and lower valve shaft with butterfly plate, the butterfly plate and upper valve
Axis, lower valve shaft coaxial arrangement and upper valve shaft, lower valve shaft are connected setting by valve shaft pin with butterfly plate, and upper valve shaft, lower valve shaft play
Support the function of the effect and driving device of butterfly plate by the drive butterfly plate rotation of upper valve shaft, lower valve shaft and valve shaft pin, the upper valve
Axis and lower valve shaft are upper and lower symmetrical and are set on valve body, valve flowing channel axis and butterfly plate axis coaxle, the valve when closed position
Body and butterfly plate are full symmetric structure along axial direction；
The valve seat is metal or nonmetallic sealing ring, and the butterfly plate includes axially symmetric spaced two circles
Disk, which passes through the multiple integral type overcurrent deflectors being arranged between two disks and butterfly plate axle bed connects into one
It is whole；It is corresponded at closed position between each disk outer rim and valve flowing channel and is respectively equipped with a sealing pair, the sealing pair
Including butterfly plate sealing surface and sealing surface of seat, the butterfly plate sealing surface is the integral type being arranged on the disk outer fringe surface of butterfly plate
Spherical surface or circular conical surface；
The structure of the sealing surface of seat are as follows:
The valve seat of described two homogeneities or non-homogeneous is embedded in respectively in the valve seat groove on valve flowing channel surface, and the valve seat is recessed
Slot is continuous circular shape valve seat groove, the valve seat by three open loops that are equally embedded in valve seat groove and are set on the outside of valve seat or
More open loop type valve seat pressing rings and tightening adjust screw and are fixed in the continuous circular shape valve seat groove for being parallel to valve flowing channel surface, should
The axial sides of valve seat are in contact setting with valve seat groove inner sidewall, constitute continuous sealing line；
The butterfly plate sealing surface is in contact with the inner surface of valve seat constitutes continuous sealing line；The internal diameter energy of the valve seat
It is enough that by rotating, tightening adjusting screw movement three is opened or more open type valve seat pressing rings squeeze valve seat and are adjusted.
Moreover, along the circumferential direction uniformly distributed interval is formed with and multiple radially sets on three open loop or more open loop type valve seat pressing rings
The non-through threaded hole set, threaded hole internal screw thread engagement installation tightening adjust the head of screw, and the tightening adjusts screw
It is formed on tail end outer surface and adjusts the structure that screw is used for spanner rotation tightening, the tightening adjusts screw tail end and valve body
The inner wall of the valve seat groove of inside is in contact setting.
Moreover, being formed with the perforation spiral shell for radially arranging and being parallel to valve flowing channel axis on the lateral wall of the valve seat groove
Pit or non-through threaded hole 36 or 37, the threads engagement that the tightening adjusts screw are installed on perforation threaded hole or non-pass through
In logical threaded hole, tightening adjusts the head of screw and the side plane contact of three open loops or more open loop type valve seat pressing rings is arranged, energy
It is enough to pass through rotation tightening adjusting screw movable valve base pressing ring and then adjust the axial force for compressing valve seat, in micro adjustment valve seat
Diameter size.
Moreover, being formed with the perforation screw thread for radially arranging and being parallel to valve flowing channel axis on the valve seat groove lateral wall
Along the circumferential direction uniformly distributed interval setting coaxial arrangement is parallel with pressing ring axis on hole, three open loop or more open loop type valve seat pressing rings
Non-through internal thread hole, perforation threaded hole and non-through internal thread hole it is oppositely oriented；The tightening adjusts the appearance of screw
Face is also formed with the screw thread to match with perforation threaded hole, non-through internal thread hole, the tightening adjust screw by perforation threaded hole,
Non-through internal thread hole engages installation with valve seat pressing ring, valve seat groove screw thread together.
Moreover, the butterfly plate sealing surface is integrally formed integral type spherical surface or circular cone on the disk outer fringe surface of butterfly plate
Face is made of by processing, built-up welding on the disk outer fringe surface of butterfly plate or plating applies or welding metal material；Alternatively, the valve body
Inner surface be that annular sphere or annular sphere connect composition with cylindrical surface, circular conical surface.
Moreover, the valve seat is all or respectively metal or nonmetallic solid or hollow section.
Moreover, the valve seat is all or respectively O-shaped or c-type.
Moreover, the structure being used for spanner rotation holding screw is coaxially disposed for four directions or hexagonal prism face or in tail end
Six cylinder inner holes.
It split type external is led moreover, corresponding with the integral type inner deflector position in the outer surface of the disk is arranged one group
The longest edge of flowing plate, external deflector and built-in deflector arranges that secondary long side and butterfly plate surface are hung down each along flow direction of medium
Directly.
The advantages and positive effects of the utility model are as follows:
1, this butterfly valve includes valve body, butterfly plate, lower valve shaft, upper valve shaft, valve seat, three open loops or more open loop type valve seat pressing rings, valve
Pivot pin, filler and gland, bottom cover, bracket, driving device, when butterfly plate is in the closed position, two sealing surfaces of butterfly plate
It is contacted respectively with valve seat (valve body metal or nonmetallic sealing ring) surface and constitutes two interior sealing pairs, realize two-way interior sealing function
Energy；Driving device movement drives valve shaft, butterfly plate degree rotation, two sealing pairs from 0 degree to 90 to gradually become disengaged position, closes
Part is in the open position, thus realizes that function is connected in medium pipeline；Driving device moves round about and butterfly plate is driven to rotate
90 degree, then valve is in the closed position.The major advantage of this butterfly valve is: movable sealing circle is arranged on valve body, and is located at valve body
In the valve seat groove of channel inner surface, is compressed and fixed, such sealing by three open loops or more open loop valve seat pressing rings and holding screw
Circle installation benefit be it is simple and reliable practical, the sealing ring than being arranged on butterfly plate is small by media impingement, with small vibration, service life
It is long；More due to using valve seat, if springing back metal o-ring especially with hollow thin-wall height, by regulating valve seat pressing ring
Screw can apply different pressure to valve seat, so that sealing ring be made to generate certain deformation, this micro-deformation can be with more
The mismachining tolerance for sealing secondary surface and surface microscopic unevenness and other tiny flaws are mended, and can be to avoid due to temperature change
Phenomena such as sealing face contact of generation is too tight or too loose occurs, and guarantees the reliability of sealing.Because metal o-ring has certain
Elasticity, can reduce closure member it is in the closed position near switch valve torque.In short, design is scientific and reasonable, structure for the butterfly valve
Simple symmetric, processing and manufacturing is easy, heavy caliber, high negotiability, high pressure resistant, high temperature resistant, corrosion-resistant, water conservancy diversion is stable, vibration
It is small, noise is low, long service life, can on-bne repair replacement sealing element, double seal assistant be under two way alternate artesian condition and cooperate with
Or independent role realizes two-way equivalent sealing in turn.
2, the valve interior surface of this butterfly valve is that annular sphere or annular sphere connect composition with cylindrical surface, it is ensured that butterfly valve
Flow channels meet or are higher than butterfly valve product design standard requirements, can obtain biggish through-current capability, change the prior art
The fluid channel diameter of three-eccentric-butterfly-valve does not meet the defect of national Specification.
3, this butterfly valve can realize the two way seal of butterfly valve.Because structure size that there are two tools is identical, position is completely right
The sealing pair of title, no matter medium presses from forward or backwards (actually without positive and reversed difference) to sealing pair, is obtained
Sealing effect be it is identical, can reliably seal.One in some special occasions, double seal assistant to can be used as work close
Envelope is secondary, another can be used as maintenance sealing pair, keeps butterfly valve work more safe and reliable.
4, when medium is in low pressure in the pipeline of this butterfly valve, two sealing pairs synergistic effect of compression power effect is obtained reliable
Sealing；When bearing high pressure, the sealing pair of pressure medium inlet side is in faint discrete state by pressure medium effect, and pressure medium
The sealing pair of outlet side, in dress state is fitted closely, is shown good leakproofness by pressure medium effect.In certain pressure range
Interior, leakproofness is proportional with pressure value.
5, the valve seat (valve body metal or nonmetallic sealing ring) of this butterfly valve is installed in the minimum valve flowing channel of velocity of medium
Surface is resistant to more permanent rush in low regime in addition to sealing ring self structure can bear the souring of high speed Dual-Phrase Distribution of Gas olid
Brush.
6, the interchangeability of the components of this butterfly valve, especially valve seat (valve seals) is good, can manufacture in batch, can suitably store up
Standby accessory spare part vulnerable part.Without as three eccentric metal sealed butterfly valve, pairing processing sealing pair avoids three eccentricity butterfly
Valve sealing pair because with as due to cause interchangeability bad defect.
7, this butterfly valve processing and fabricating relative ease is easy.Although sealing ring requirement on machining accuracy is high, its is light-weight, processing
Measure small, finishing means processing and manufacturing easy to use.
Detailed description of the invention
Fig. 1 is the structure connection diagram of the utility model；
Fig. 2 be Fig. 1 A-A to cross section schematic diagram；
Fig. 3 is the cross section enlarged diagram of the B-B direction of Fig. 1；
Fig. 4 is that the structure in the portion C in Fig. 2 connects enlarged diagram；
Fig. 5 is that the structure in the portion D in Fig. 2 connects enlarged diagram；
Fig. 6 is that the structure in the portion F in Fig. 2 connects enlarged diagram；
Fig. 7 is that the structure in the portion K in Fig. 3 connects enlarged diagram；
Fig. 8 is that the structure in the portion H in Fig. 2 connects enlarged diagram；
Fig. 9 is that the structure in the portion G in Fig. 2 connects enlarged diagram；
Figure 10 is that the structure in the portion J in Fig. 3 connects enlarged diagram.
Specific embodiment
For the contents, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates attached drawing
Detailed description are as follows.It should be noted that the present embodiment be it is descriptive, be not restrictive, cannot thus limit practical
Novel protection scope.
The structure being not described in detail in the utility model can be understood as common structure in the art.
A kind of double plate double-valve-seats (movable sealing circle is on valve body) bidirectional metal or the butterfly valve of nonmetallic sealing, such as Fig. 1, figure
2, shown in Fig. 3 and Fig. 4, the butterfly valve include driving device 14, joint chair 13, filler 10, gland 11, bottom cover 15, valve body 1,
Butterfly plate 2, upper valve shaft 6, lower valve shaft 3, axle sleeve 12, valve shaft pin 5, valve seat 7, valve seat pressing ring 8, tightening adjust screw 9, the driving dress
It sets and is connected with gland setting by joint chair, filler is set in the gland, it is same between the gland and bottom cover
Valve body is arranged in axis, and the valve body is flexibly connected by upper valve shaft and lower valve shaft with butterfly plate, and the butterfly plate and upper valve shaft, lower valve shaft are coaxial
Setting and upper valve shaft, lower valve shaft are connected setting by valve shaft pin with butterfly plate, upper valve shaft, lower valve shaft play the role of support butterfly plate
And the function that driving device drives butterfly plate to rotate by upper valve shaft, lower valve shaft and valve shaft pin, valve shaft and lower valve shaft are upper and lower on this
Symmetrical and be set on valve body, 33 axis of valve flowing channel and butterfly plate axis coaxle when closed position, the valve body and butterfly plate are along axis
To being full symmetric structure.
The innovative point of the utility model is:
The valve seat is metal or nonmetallic sealing ring, and the butterfly plate includes axially symmetric spaced two disks
31, which passes through the multiple integral type overcurrent deflectors 4 being arranged between two disks and butterfly plate axle bed 32 connects into
One entirety；It is corresponded at closed position between each disk outer rim and valve flowing channel and is respectively equipped with a sealing pair, it is described close
Secondary envelope includes butterfly plate sealing surface and sealing surface of seat, and the butterfly plate sealing surface is one be arranged on the disk outer fringe surface of butterfly plate
Body formula spherical surface or circular conical surface；
The structure of the sealing surface of seat are as follows:
The valve seat that the valve seat (valve seals) of described two homogeneities or non-homogeneous is embedded in valve flowing channel surface respectively is recessed
In slot 34, which is continuous circular shape valve seat groove, and the valve seat is by being equally embedded in valve seat groove and being set to valve seat
Three open loops in outside or more open loop type valve seat pressing rings and tightening adjust screw and are fixed on the continuous loop for being parallel to valve flowing channel surface
In shape valve seat groove, the axial sides of the valve seat are in contact setting with valve seat groove inner sidewall, constitute continuous sealing line；
The butterfly plate sealing surface is in contact with the inner surface of valve seat constitutes continuous sealing line；Due to valve seat axial sides with
The contact setting of valve seat groove inner sidewall, and then continuous sealing line is constituted, in addition, butterfly plate sealing surface is in contact with the inner surface of valve seat
It constitutes continuous sealing line and seals form in complete so being formed；The internal diameter of the valve seat can be adjusted by rotation tightening
Screw and then movement three are opened or more open type valve seat pressing rings squeeze valve seat and carry out (micro) adjustment.
In the present embodiment, as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, three open loop or more open loop type valve seats
Along the circumferential direction uniformly distributed interval is formed with multiple non-through threaded holes 35 being disposed radially, threaded hole internal screw thread engagement on pressing ring
The head that tightening adjusts screw is installed, is formed on the tail end outer surface of the tightening adjusting screw and is adjusted for spanner rotation tightening
The structure that screw is used, the tightening adjusts screw tail end and is in contact with the inner wall of the valve seat groove on the inside of valve body setting, to consolidate
Fixed and mobile pressing ring and valve seat；
Alternatively, being formed with the perforation spiral shell for radially arranging and being parallel to valve flowing channel axis on the lateral wall of the valve seat groove
Pit or non-through threaded hole 36 or 37, the threads engagement that the tightening adjusts screw are installed on perforation threaded hole or non-pass through
In logical threaded hole, tightening adjusts the head of screw and the side plane contact of three open loops or more open loop type valve seat pressing rings is arranged, energy
It is enough to pass through rotation tightening adjusting screw movable valve base pressing ring and then adjust the axial force for compressing valve seat, in micro adjustment valve seat
Diameter size；
Alternatively, being formed with the perforation screw thread for radially arranging and being parallel to valve flowing channel axis on the valve seat groove lateral wall
Along the circumferential direction uniformly distributed interval setting coaxial arrangement and pressing ring axis are flat on hole 36, three open loop or more open loop type valve seat pressing rings
Capable non-through internal thread hole, perforation threaded hole are oppositely oriented with non-through internal thread hole；The tightening adjusts the outer of screw
Surface is also formed with the screw thread to match with perforation threaded hole, non-through internal thread hole, which adjusts screw and pass through perforation screw thread
Hole, non-through internal thread hole engage installation with valve seat pressing ring, valve seat groove screw thread together, therefore can be tight by rotating when use
It sets the tone and saves screw movable valve base pressing ring and then adjust the axial force for compressing valve seat, micro adjustment valve seat bore size.
In the present embodiment, the butterfly plate sealing surface is the integrally formed integral type ball on the disk outer fringe surface of butterfly plate
Face or circular conical surface are made of by processing, built-up welding on the disk outer fringe surface of butterfly plate or plating applies or welding metal material；Alternatively,
The inner surface of the valve body is that annular sphere or annular sphere connect composition with cylindrical surface, circular conical surface.
In the present embodiment, the valve seat (valve seals) is all or respectively metal or nonmetallic solid or hollow disconnected
Face (such as O-shaped or c-type).
In the present embodiment, the structure being used for spanner rotation holding screw is for four directions or hexagonal prism face or in tail end
It is coaxially disposed six cylinder inner holes.
In the present embodiment, one group of the setting in position corresponding with integral type inner deflector of the outer surface of the disk is seperated
The longest edge of the external deflector (not shown) of formula, external deflector and built-in deflector is each along flow direction of medium cloth
It sets, secondary long side is vertical with butterfly plate surface, and deflector closed type or the long and narrow runner of semi open model, which can weaken or eliminate, flows through butterfly plate
The turbulent condition of surface dielectric keeps media flow smooth, and then weakens or eliminate the vibration and cavitation erosion of butterfly plate.Deflector acts on
Make pressure field smooth transition variation, guarantee medium smooth outflow, generates to collide when reducing medium mixing and cause vibration, noise gentle
The possibility of erosion decreases the pressure loss before and after butterfly plate, there is preferable fair current and shunting function, reduces flow field change difference.
Claims (9)
1. a kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing, the butterfly valve include driving device, joint chair, fill out
Material, gland, bottom cover, valve body, butterfly plate, upper valve shaft, lower valve shaft, axle sleeve, valve shaft pin, valve seat, valve seat pressing ring, tightening adjust spiral shell
Nail, the driving device are connected setting by joint chair with gland, the interior setting filler of the gland, the gland
Valve body is coaxially disposed between bottom cover, the valve body is flexibly connected by upper valve shaft and lower valve shaft with butterfly plate, the butterfly plate and upper valve
Axis, lower valve shaft coaxial arrangement and upper valve shaft, lower valve shaft are connected setting by valve shaft pin with butterfly plate, and upper valve shaft, lower valve shaft play
Support the function of the effect and driving device of butterfly plate by the drive butterfly plate rotation of upper valve shaft, lower valve shaft and valve shaft pin, the upper valve
Axis and lower valve shaft are upper and lower symmetrical and are set on valve body, valve flowing channel axis and butterfly plate axis coaxle, the valve when closed position
Body and butterfly plate are full symmetric structure along axial direction, it is characterised in that:
The valve seat is metal or nonmetallic sealing ring, and the butterfly plate includes axially symmetric spaced two disks, should
Two disks pass through the multiple integral type overcurrent deflectors being arranged between two disks and butterfly plate axle bed connects into an entirety；
It is corresponded at closed position between each disk outer rim and valve flowing channel and is respectively equipped with a sealing pair, the sealing pair includes butterfly
Plate sealing surface and sealing surface of seat, the butterfly plate sealing surface be the integral type spherical surface being arranged on the disk outer fringe surface of butterfly plate or
Circular conical surface；
The structure of the sealing surface of seat are as follows:
The valve seat of described two homogeneities or non-homogeneous is embedded in respectively in the valve seat groove on valve flowing channel surface, which is
Continuous circular shape valve seat groove, the valve seat are opened more by three open loops that are equally embedded in valve seat groove and are set on the outside of valve seat or
Ring type valve seat pressing ring and tightening adjust screw and are fixed in the continuous circular shape valve seat groove for being parallel to valve flowing channel surface, the valve seat
Axial sides be in contact with valve seat groove inner sidewall setting, constitute continuous sealing line；
The butterfly plate sealing surface is in contact with the inner surface of valve seat constitutes continuous sealing line；The internal diameter of the valve seat can lead to
It crosses rotation tightening adjusting screw and then movement three is opened or more open type valve seat pressing rings squeeze valve seat and are adjusted.
2. double plate double-valve-seat bidirectional metals according to claim 1 or the butterfly valve of nonmetallic sealing, it is characterised in that: described
Along the circumferential direction uniformly distributed interval is formed with multiple non-through threaded holes being disposed radially in three open loops or more open loop type valve seat pressing rings,
Threaded hole internal screw thread engagement installation tightening adjusts the head of screw, is formed on the tail end outer surface of the tightening adjusting screw
The structure that screw is used is adjusted for spanner rotation tightening, the tightening adjusting screw tail end is interior with the valve seat groove on the inside of valve body
Wall is in contact setting.
3. double plate double-valve-seat bidirectional metals according to claim 1 or the butterfly valve of nonmetallic sealing, it is characterised in that: described
The perforation threaded hole or non-through screw thread for radially arranging and being parallel to valve flowing channel axis are formed on the lateral wall of valve seat groove
Hole, the threads engagement that the tightening adjusts screw are installed in perforation threaded hole or non-through threaded hole, and tightening adjusts spiral shell
The side plane contact of the head of nail and three open loops or more open loop type valve seat pressing rings is arranged, and can adjust screw by rotation tightening
And then the axial force of movable valve base pressing ring and then adjustment compression valve seat, micro adjustment valve seat bore size.
4. double plate double-valve-seat bidirectional metals according to claim 1 or the butterfly valve of nonmetallic sealing, it is characterised in that: described
The perforation threaded hole for radially arranging and being parallel to valve flowing channel axis, three open loop or more are formed on valve seat groove lateral wall
Along the circumferential direction uniformly distributed interval setting is coaxially disposed the non-through internal thread hole parallel with pressing ring axis on open loop type valve seat pressing ring,
Perforation threaded hole is oppositely oriented with non-through internal thread hole；The outer surface that the tightening adjusts screw is also formed with and perforation screw thread
The screw thread that hole, non-through internal thread hole match, the tightening adjust screw and pass through perforation threaded hole, non-through internal thread hole and valve
Seat pressing ring, valve seat groove screw thread engagement installation are together.
5. double plate double-valve-seat bidirectional metals according to claim 1 or the butterfly valve of nonmetallic sealing, it is characterised in that: described
Butterfly plate sealing surface is that integrally formed integral type spherical surface or circular conical surface are by butterfly plate on the disk outer fringe surface of butterfly plate
Processing, built-up welding or plating apply on disk outer fringe surface or welding metal material is made；Alternatively, the inner surface of the valve body is annular ball
Face or annular sphere connect composition with cylindrical surface, circular conical surface.
6. double plate double-valve-seat bidirectional metals according to claim 1 or the butterfly valve of nonmetallic sealing, it is characterised in that: described
Valve seat is all or respectively metal or nonmetallic solid or hollow section.
7. double plate double-valve-seat bidirectional metals according to claim 6 or the butterfly valve of nonmetallic sealing, it is characterised in that: described
Valve seat is all or respectively O-shaped or c-type.
8. double plate double-valve-seat bidirectional metals according to claim 1 or the butterfly valve of nonmetallic sealing, it is characterised in that: described
It is four directions or hexagonal prism face for the structure that spanner rotation holding screw is used or is coaxially disposed six cylinder inner holes in tail end.
9. double plate double-valve-seat bidirectional metals according to any one of claims 1 to 8 or the butterfly valve of nonmetallic sealing, feature
Be: one group of split type external deflector is arranged in the outer surface of disk position corresponding with integral type inner deflector, outside
The longest edge for setting deflector and built-in deflector arranges that secondary long side is vertical with butterfly plate surface each along flow direction of medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821260849.2U CN208816703U (en) | 2018-08-07 | 2018-08-07 | A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821260849.2U CN208816703U (en) | 2018-08-07 | 2018-08-07 | A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816703U true CN208816703U (en) | 2019-05-03 |
Family
ID=66272577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821260849.2U Expired - Fee Related CN208816703U (en) | 2018-08-07 | 2018-08-07 | A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816703U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980376A (en) * | 2018-08-07 | 2018-12-11 | 王中杰 | Double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing |
| CN112253770A (en) * | 2020-10-29 | 2021-01-22 | 上海沪东造船阀门有限公司 | Low-leakage high-temperature butterfly valve for marine diesel engine |
| CN113757397A (en) * | 2021-10-09 | 2021-12-07 | 远大阀门集团有限公司 | A six-eccentric two-way sealing butterfly valve |
-
2018
- 2018-08-07 CN CN201821260849.2U patent/CN208816703U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980376A (en) * | 2018-08-07 | 2018-12-11 | 王中杰 | Double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing |
| CN112253770A (en) * | 2020-10-29 | 2021-01-22 | 上海沪东造船阀门有限公司 | Low-leakage high-temperature butterfly valve for marine diesel engine |
| CN113757397A (en) * | 2021-10-09 | 2021-12-07 | 远大阀门集团有限公司 | A six-eccentric two-way sealing butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108980376A (en) | Double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing | |
| CN208816703U (en) | A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing | |
| CN101963240A (en) | Expanding type metal seated ball valve | |
| CN107355548A (en) | The butterfly valve of double plate double-valve-seat bidirectional metal sealings | |
| CN108953628A (en) | One kind five ties up eccentric valve sealing structure | |
| CN201259012Y (en) | Automatic seal stop valve | |
| CN202302044U (en) | Top-mounting type cam flexibility control valve | |
| CN108223830A (en) | A kind of omnipotent regulating valve | |
| CN106917878A (en) | Eccentric rotary valve | |
| CN207178719U (en) | A kind of butterfly valve of double plate double-valve-seat bidirectional metal sealings | |
| CN210600226U (en) | A double block bottom valve | |
| CN220302775U (en) | Bidirectional metal-pressing sealing butterfly valve | |
| CN207161754U (en) | Double-sealing eccentric ball valve | |
| CN210153263U (en) | A regulating ball valve that can linearly control flow | |
| US20050205824A1 (en) | Segmented ball control valve with universal end connections | |
| CN207728899U (en) | A kind of very stiff and demanding metallic seal butterfly valve | |
| CN212080196U (en) | Five-dimensional eccentric valve rigid line sealing structure | |
| CN117537131A (en) | A high-pressure three-way diverter valve device | |
| CN105605239B (en) | Round platform spool and the processing method of round platform valve and round platform spool | |
| CN212226029U (en) | A plug throttle shut-off valve | |
| CN212106961U (en) | Five-dimensional eccentric valve elastic wire sealing structure | |
| CN212564441U (en) | Deformed spherical eccentric line surface double-sealing valve | |
| CN110375086A (en) | A kind of dedicated angle-style septum valve | |
| US20200080648A1 (en) | Deformed spherical eccentric valve | |
| CN208687003U (en) | A ball valve with replaceable sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20210807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |