CN206889734U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN206889734U CN206889734U CN201720706907.9U CN201720706907U CN206889734U CN 206889734 U CN206889734 U CN 206889734U CN 201720706907 U CN201720706907 U CN 201720706907U CN 206889734 U CN206889734 U CN 206889734U
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- China
- Prior art keywords
- valve seat
- valve
- soft
- hard
- elastic component
- Prior art date
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 239000000945 filler Substances 0.000 claims description 29
- 210000004907 gland Anatomy 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 238000009825 accumulation Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 230000004308 accommodation Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 238000005728 strengthening Methods 0.000 description 6
- 239000007769 metal material Substances 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- Taps Or Cocks (AREA)
Abstract
The utility model provides a kind of ball valve, including core, main valve body, left secondary valve body and right auxiliary valve body, ball valve also include：The hard valve seat in a left side being oppositely arranged and right hard valve seat；The the first left soft valve seat and the first soft valve seat in the right side being oppositely arranged, the first left soft valve seat pressure is located at left firmly between valve seat and core, and the first right soft valve seat pressure is located at right firmly between valve seat and core；The the second left soft valve seat and the second soft valve seat in the right side being oppositely arranged, the second left soft valve seat pressure is located at left firmly between valve seat and left secondary valve body, and the second right soft valve seat pressure is located at right firmly between valve seat and right auxiliary valve body.Ball valve of the present utility model employs the structure that hard seal valve seat is combined with soft sealing valve seat, the double sealing effect reached, substantially increases sealability and reliability between valve seat and core；Meanwhile by still having good elastic compensating energy at low temperature using elastic component, greatly improve valve seat at low temperature and the sealing effectiveness of core.
Description
Technical field
A kind of valve is the utility model is related to, more particularly to a kind of ball valve.
Background technology
Liquefied ammonia can be applicable to the liquefied ammonia industry that pipeline medium temperature is relatively low and pressure is higher with two way seal ball valve.But
Ball valve of the prior art is primarily present problems with：The existing liquefied ammonia knot that two way seal ball valve is mainly using soft seal
Structure, under certain temperature and pressure rating conditions, and under regular cold and hot frequently alternating operating mode, original sealing can be lost
Effect, and service life is very short, eventually the problem of generation valve leak, causes pollution, toxic gas to hurt sb.'s feelings, or even have
The serious risk of blast.
Utility model content
The technical problems to be solved in the utility model is to overcome the structure of soft seal of the prior art easily to lose
A kind of the defects of original sealing effectiveness, there is provided ball valve.
The utility model is that solve above-mentioned technical problem by following technical proposals：
A kind of ball valve, including a core, a main valve body, the left secondary valve body being oppositely arranged and right auxiliary valve body, the left secondary valve
Body and right auxiliary valve body are removably connected to the both ends of the main valve body, the left secondary valve body, the main valve body and the right secondary valve
Body surrounds an accommodation space, and the core is located in the accommodation space, and its feature is, the ball valve also includes：
The hard valve seat in a left side and right hard valve seat being oppositely arranged, the left hard valve seat located at the left secondary valve body and the core it
Between, the right hard valve seat is located between the right auxiliary valve body and the core；
The the first left soft valve seat and the first right soft valve seat being oppositely arranged, the described first left soft valve seat pressure are located at the hard valve in a left side
Between seat and the core, the first right soft valve seat pressure is located at described right hard between valve seat and the core；
The the second left soft valve seat and the second right soft valve seat being oppositely arranged, the described second left soft valve seat pressure are located at the hard valve in a left side
Between seat and the left secondary valve body, the second right soft valve seat pressure is located at described right hard between valve seat and the right auxiliary valve body.
In the technical program, by setting left hard valve seat, right hard valve seat, the first left soft valve seat, the first right soft valve seat, the
Two left soft valve seats and the second right soft valve seat, to reach the effect preferably sealed, it is ensured that the sealing property of valve seat, substantially increase
The service life of ball valve.
It is preferred that it is respectively equipped with the first left elastic component and first in the described first left soft valve seat and the first right soft valve seat
Right elastic component, the first left elastic component are arranged in the described first left soft valve seat, and the first right elastic component is arranged in described
In first right soft valve seat.
It is preferred that the left hard valve seat is provided with one first accommodating chamber, the described first left soft valve seat with one first contact site,
One first compressed part, first pressed parts are and described in first accommodating chamber and pressing in the left hard valve seat
First left elastic component is embedded in first compressed part, and first contact site is exposed to the hard valve seat in a left side, and described
One contact site is resisted against the core；
The right hard valve seat is provided with one second accommodating chamber, and the described first right soft valve seat has one second contact site, one second
Compressed part, second pressed parts are in second accommodating chamber and pressing in the right hard valve seat, and described first is right
Elastic component is embedded in second compressed part, and second contact site is exposed to the hard valve seat in the right side, and second contact
Portion is resisted against the core.
In the technical program, under low-temperature condition, and cold and heat succeed each other under state, when nonmetallic materials, to lose its original
During good elastic compensating ability, first inside the first left elastic component, the first right soft valve seat inside the first left soft valve seat is right
Elastic component is provided with good elastic compensating effect, so as to provide good core, the sealing property of soft valve seat.
It is preferred that it is respectively equipped with the second left elastic component and second in the described second left soft valve seat and the second right soft valve seat
Right elastic component, the second left elastic component are arranged in the described second left soft valve seat, and the second right elastic component is arranged in described
In second right soft valve seat.
It is preferred that the left hard valve seat is provided with one the 3rd accommodating chamber, the described second left soft valve seat with one the 3rd contact site,
One the 3rd compressed part, the 3rd pressed parts are in the 3rd accommodating chamber and pressing in left hard valve seat, and described second
Left elastic component is embedded in the 3rd compressed part, and the 3rd contact site is exposed to the hard valve seat in a left side, and the described 3rd connects
Contact portion is resisted against the left secondary valve body；
The right hard valve seat is provided with one the 4th accommodating chamber, and the described second right soft valve seat has one the 4th contact site, one the 4th
Compressed part, the 4th pressed parts are in the 4th accommodating chamber and pressing in the right hard valve seat, and described second is right
Elastic component is embedded in the 4th compressed part, and the 4th contact site is exposed to the hard valve seat in the right side, and the 4th contact
Portion is resisted against the right auxiliary valve body.
In the technical program, under low-temperature condition, and cold and heat succeed each other under state, when nonmetallic materials, to lose its original
During good elastic compensating ability, second inside the second left elastic component and the second right soft valve seat inside the second left soft valve seat is right
Elastic component is provided with good elastic compensating effect, so as to provide the sealing property of good auxiliary valve body, soft valve seat.
It is preferred that the material of the left hard valve seat and the right hard valve seat is metal material, the described first left soft valve seat,
The material of described first right soft valve seat, the second left soft valve seat and the second right soft valve seat is nonmetallic materials.
It is preferred that the ball valve includes：
One first trim ring, first trim ring are arranged at the left side firmly between valve seat and the left secondary valve body, and described first
Trim ring is provided with one first cavity, and the 3rd elastic component is embedded in first cavity, and the both ends difference of the 3rd elastic component
It is resisted against the left secondary valve body and first trim ring；
One second trim ring, second trim ring are arranged at the right side firmly between valve seat and the right auxiliary valve body, and described second
Trim ring is provided with one second cavity, and the 4th elastic component is embedded in second cavity, and the both ends difference of the 4th elastic component
It is resisted against the right auxiliary valve body and second trim ring.
In the technical program, by setting the first trim ring and the second trim ring, it is ensured that the sealing property of valve seat, carry significantly
The high service life of ball valve.
It is preferred that the ball valve includes the first valve seat pad, the first valve seat baffle ring, the second valve seat pad, the second valve seat
Baffle ring, the first valve seat pad, the first valve seat baffle ring, the second left soft valve seat are set in turn in first trim ring
Between the left hard valve seat, the second valve seat pad, the second valve seat baffle ring, the second left soft valve seat are set gradually
Between second trim ring and the right hard valve seat.
It is preferred that the ball valve includes：
One valve rod, the valve rod are rotatably inserted into the main valve body, and the valve rod is connected to the core
Top；
One stuffing box, the stuffing box is sheathed on the valve rod, and the stuffing box is connected to the top of the main valve body；
One thrust washer, the thrust washer are sheathed on the valve rod, and the thrust washer be located at the stuffing box with
Between the valve rod.
It is preferred that the top of the core is provided with one first groove, the stuffing box is inserted in first groove, institute
State ball valve and include sliding bearing on one, the upper sliding bearing is sheathed on the outer surface of the stuffing box, and the upper slip
Bearing is between the stuffing box and the core.
It is preferred that the ball valve includes an accumulation of energy sealing ring, the accumulation of energy sealing ring pressure located at the valve rod with it is described
Between stuffing box, and the accumulation of energy sealing ring is located at the top of the thrust washer.
It is preferred that the ball valve includes a metal washer, a filler assembly, a filler pressing sleeve, a gland flange, it is described
Metal washer and the filler assembly are pressed between the top of the internal face of the stuffing box and the outer surface of the valve rod,
The gland flange is connected to the top of the stuffing box, and the filler pressing sleeve is sheathed on the outer surface of the valve rod, and described
Filler pressing sleeve pressure is located between the filler assembly and the gland flange.
It is preferred that the ball valve, which includes, compresses stud, nut, spring loaded, the bottom for compressing stud is connected to
The stuffing box, and the compression stud passes through the gland flange, the nut is connected to the compression stud and is located at institute
The top of gland flange is stated, the spring loaded pressure is located between the gland flange and the nut.
It is preferred that the ball valve includes：
One lower shaft lid, the lower shaft lid are connected to the bottom of the main valve body, and the bottom of the core is recessed provided with one second
Groove, the lower shaft lid are inserted in second groove；
One properties of journal bearing lubricated, the properties of journal bearing lubricated are sheathed on the outer surface of the lower shaft lid, and the properties of journal bearing lubricated
Between the core and the lower shaft lid.
Positive effect of the present utility model is：
Ball valve of the present utility model employs the structure that hard seal valve seat is combined with soft sealing valve seat, and what is reached is dual
Sealing effectiveness, substantially increase sealability and reliability between valve seat and core；Meanwhile by application elastic component at low temperature
Still there is good elastic compensating energy, greatly improve valve seat at low temperature and the sealing effectiveness of core.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of the ball valve of the utility model preferred embodiment.
Fig. 2 is the partial enlarged drawing of part A in Fig. 1.
Description of reference numerals：
Main valve body 1
Left secondary valve body 21
Right auxiliary valve body 22
Core 3
Left hard valve seat 4
3rd elastic component 41
First trim ring 42
First valve seat pad 43
First valve seat baffle ring 44
Valve seat insert 46
Trim ring gasket seal 47
Right hard valve seat 5
First left soft valve seat 61
First right soft valve seat 62
First left elastic component 63
Second left soft valve seat 71
Second right soft valve seat 72
Second left elastic component 73
Valve rod 8
Thrust washer 81
Upper sliding bearing 82
Accumulation of energy sealing ring 83
Stuffing box 9
Metal washer 91
Filler assembly 92
Filler pressing sleeve 93
Gland flange 94
Compress stud 95
Nut 96
Spring loaded 97
Lower shaft lid 10
Properties of journal bearing lubricated 101
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.
As shown in figure 1, the present embodiment provides a kind of ball valve, including core 3, main valve body 1, left secondary valve body 21, right auxiliary valve body
22nd, left hard valve seat 4, the right hard left soft right soft left soft valve seat 71 and second of valve seat 62, second of valve seat 61, first of valve seat 5, first are right soft
Valve seat 72.Left secondary valve body 21 and right auxiliary valve body 22 are oppositely arranged.Left secondary valve body 21 and right auxiliary valve body 22 are removably connected to main valve
The both ends of body 1, left secondary valve body 21, main valve body 1 and right auxiliary valve body 22 surround an accommodation space, and core 3 is located at the accommodation space
It is interior.Left hard valve seat 4 and right hard valve seat 5 are oppositely arranged.Left hard valve seat 4 is located between left secondary valve body 21 and core 3, right hard valve seat 5
Between right auxiliary valve body 22 and core 3.The first left soft right soft valve seat 62 of valve seat 61 and first is oppositely arranged.First left soft valve seat
61 pressures are located at left firmly between valve seat 4 and core 3, and the first right soft pressure of valve seat 62 is located at right firmly between valve seat 5 and core 3.Second is left
The soft right soft valve seat 72 of valve seat 71 and second is oppositely arranged.The second left soft pressure of valve seat 71 located at left hard valve seat 4 and left secondary valve body 21 it
Between, the second right soft pressure of valve seat 72 is located at right firmly between valve seat 5 and right auxiliary valve body 22.The material of left hard valve seat 4 and right hard valve seat 5 is equal
For metal material, the material of the first left soft right soft left soft right soft valve seat 72 of valve seat 71 and second of valve seat 62, second of valve seat 61, first
It is nonmetallic materials.So, so, by setting left hard valve seat 4, the right hard left soft valve seat 61, first of valve seat 5, first right soft
The left soft right soft valve seat 72 of valve seat 71 and second of valve seat 62, second, to reach the effect preferably sealed, it is ensured that the sealing of valve seat
Energy, substantially increase the service life of ball valve.The first left bullet is respectively equipped with the first left soft right soft valve seat 62 of valve seat 61 and first
Property 63 and first right elastic component of part, the first left elastic component 63 is arranged in the first left soft valve seat 61, and the first right elastic component is worn
In the first right soft valve seat 62.So, under low-temperature condition, and cold and heat succeed each other under state, when nonmetallic materials lose it
During original good elastic compensating ability, in the first soft valve seat 62 in the left right side of elastic component 63, first inside the first left soft valve seat 61
The first right elastic component in portion is provided with good elastic compensating effect, so as to provide good core 3, the sealing of soft valve seat
Energy.First left 63 and first right elastic component of elastic component can be the spring of metal material.
In order to reach the effect for strengthening the bonding strength between the left left soft valve seat 61 of hard valve seat 4 and first, left hard valve seat 4 is set
Have one first accommodating chamber, the first left soft valve seat 61 has one first contact site, one first compressed part, first pressed parts in
In first accommodating chamber and press in left hard valve seat 4, and the first left elastic component 63 is embedded in first compressed part, institute
State the first contact site and be exposed to left hard valve seat 4, and first contact site is resisted against core 3.First left soft valve seat 61 will be by
Power produces deformation, and certain tensile force is produced to left hard valve seat 4 and core 3, realize the soft valve seat 61 in the left hard left side of valve seat 4 and first it
Between connect it is more stable.
In order to reach the effect for strengthening the bonding strength between the right right soft valve seat 62 of hard valve seat 5 and first, right hard valve seat 5 is set
Have one second accommodating chamber, the first right soft valve seat 62 has one second contact site, one second compressed part, second pressed parts in
In second accommodating chamber and press in right hard valve seat 5, and the first right elastic component is embedded in second compressed part,
Second contact site is exposed to right hard valve seat 5, and second contact site is resisted against core 3.First right soft valve seat 62 will
Stress produces deformation, and certain tensile force is produced to right hard valve seat 5 and core 3, realizes the right right soft valve seat 62 of hard valve seat 5 and first
Between connect it is more stable.
The second left 73 and second right elastic component of elastic component is respectively equipped with the second left soft right soft valve seat 72 of valve seat 71 and second,
Second left elastic component 73 is arranged in the second left soft valve seat 71, and the second right elastic component is arranged in the second right soft valve seat 72.So,
Under low-temperature condition, and cold and heat succeed each other under state, when nonmetallic materials lose its original good elastic compensating ability,
The second right elastic component inside the second left right soft valve seat 72 of elastic component 73 and second inside two left soft valve seats 71 is provided with well
Elastic compensating effect, so as to provide the sealing property of good auxiliary valve body, soft valve seat.Second left elastic component 73 and second is right
Elastic component can be the spring of metal material.
In order to reach the effect for strengthening the bonding strength between the left left soft valve seat 71 of hard valve seat 4 and second, left hard valve seat 4 is set
Have one the 3rd accommodating chamber, the second left soft valve seat 71 has one the 3rd contact site, one the 3rd compressed part, the 3rd pressed parts in
In 3rd accommodating chamber and press in left hard valve seat 4, and the second left elastic component 73 is embedded in the 3rd compressed part, institute
State the 3rd contact site and be exposed to left hard valve seat 4, and the 3rd contact site is resisted against left secondary valve body 21.Second left soft valve seat 71 will
Meeting stress produces deformation, and certain tensile force is produced with left secondary valve body 21 to left hard valve seat 4, realizes that the hard valve seat 4 and second in a left side is left
Connected between soft valve seat 71 more stable.
In order to reach the effect for strengthening the bonding strength between the right right soft valve seat 72 of hard valve seat 5 and second, right hard valve seat 5 is set
Have one the 4th accommodating chamber, the second right soft valve seat 72 has one the 4th contact site, one the 4th compressed part, the 4th pressed parts in
In 4th accommodating chamber and press in right hard valve seat 5, and the second right elastic component is embedded in the 4th compressed part,
4th contact site is exposed to right hard valve seat 5, and the 4th contact site is resisted against right auxiliary valve body 22.Second right soft valve seat 72
Will stress produce deformation, produce certain tensile force to right hard valve seat 5 and with right auxiliary valve body 22, realize right hard valve seat 5 with it is right
Connected between auxiliary valve body 22 more stable.
As depicted in figs. 1 and 2, it is left that the 3rd elastic component 41 can be provided between valve seat 4 and left secondary valve body 21 firmly, pass through the 3rd
Elastic component 41 can provide tensile force to left hard valve seat 4 so that tight between the left soft valve seat 61 of the hard valve seat 4 and first in a left side and core 3
Paste and form sealing structure, guarantee forms excellent sealing.Likewise, right can also be provided between valve seat 5 and right auxiliary valve body 22 firmly
4th elastic component so that be close between the right soft valve seat 62 of the hard valve seat 5 and first in the right side and core 3 and form sealing structure, ensure shape
Into excellent sealing.3rd elastic component 41 and the 4th elastic component can be spring.
In order to reach the effect for preventing the 3rd elastic component 41 from producing shift phenomenon when in use, ball valve can include one
One trim ring 42, the first trim ring 42 are arranged at a left side firmly between valve seat 4 and left secondary valve body 21, and the first trim ring 42 is provided with one first cavity,
3rd elastic component 41 is embedded in the first cavity, and the both ends of the 3rd elastic component 41 bear against and pressed in left secondary valve body 21 and first
Circle 42.By the first trim ring 42 effectively the 3rd elastic component 41 of limitation positioning, prevent the 3rd elastic component 41 from producing skew inconsistent phenomenon.
Likewise, ball valve can include one second trim ring, the second trim ring is arranged at the right side firmly between valve seat 5 and right auxiliary valve body 22, second
Trim ring is provided with one second cavity, and the 4th elastic component is embedded in the second cavity, and the both ends of the 4th elastic component are born against in the right side
The trim ring of auxiliary valve body 22 and second.Effectively prevent the 4th elastic component from producing skew inconsistent phenomenon by the second trim ring.
In order to reach the effect for further strengthening ball valve sealing, ball valve can include the first valve seat pad 43, the first valve
Seat baffle ring 44, the first valve seat pad 43, the first valve seat baffle ring 44 and the second left soft valve seat 71 are set in turn in the and of the first trim ring 42
Between left hard valve seat 4, the sealing effectiveness between the first trim ring 42 and left hard valve seat 4 is substantially increased.First valve seat pad 43
Material can be graphite, effectively increase the fire protecting performance of ball valve.The shape of left hard valve seat 4 can be with trapezoidal so that the first valve
Seat cushion piece 43, the first valve seat baffle ring 44 and the second left soft valve seat 71 are also compressed and fitted on left secondary valve body 21, further improve ball
The sealing of valve.It is left to be provided with valve seat insert 46, the first trim ring 42 and left secondary valve body between valve seat 4 and left secondary valve body 21 firmly
Trim ring gasket seal 47 can be provided between 21, effectively increases the sealing effectiveness of ball valve.
Likewise, ball valve can also include the second valve seat pad, the second valve seat baffle ring, the second right soft valve seat, the second valve
The right soft valve seat 72 of seat cushion piece, the second valve seat baffle ring and second is set in turn between the second trim ring and right hard valve seat 5, is greatly improved
Sealing effectiveness between second trim ring and right hard valve seat 5.The material of second valve seat pad can be graphite, effectively increase ball
The fire protecting performance of valve.The shape of right hard valve seat 5 can be with trapezoidal so that the second valve seat pad, the second valve seat baffle ring and second are right
Soft valve seat 72 is compressed and fitted on right auxiliary valve body 22, further improves the sealing of ball valve.Right hard valve seat 5 and right auxiliary valve body 22 it
Between can be provided with valve seat insert, trim ring gasket seal can be provided between the second trim ring and right auxiliary valve body 22, is effectively increased
The sealing effectiveness of ball valve.
In order to reach ball valve effect easy to use.Ball valve can include a valve rod 8, a stuffing box 9, a thrust washer
81, valve rod 8 is rotatably inserted into main valve body 1, and valve rod 8 is connected to the top of core 3, and ball valve is realized by valve rod 8
Switch.Stuffing box 9 is sheathed on valve rod 8, and stuffing box 9 is connected to the top of main valve body 1.Stuffing box 9 effectively limits the work of valve rod 8
With.Thrust washer 81 is sheathed on valve rod 8, and thrust washer 81 is made between stuffing box 9 and valve rod 8 by thrust washer 81
Obtaining valve rod 8, frictional force is low when rotated, easy to use.
The top of core 3 can be provided with the first groove, and stuffing box 9 is inserted in the first groove, and ball valve can include
Sliding bearing 82, upper sliding bearing 82 is sheathed on the outer surface of stuffing box 9, and upper sliding bearing 82 is located at stuffing box 9 and core 3
Between.Upper sliding bearing 82 plays lubrication, realizes ball valve in switch without jam phenomenon, convenient use.It is meanwhile effectively anti-
Only core 3 produces skew inconsistent phenomenon in motion, greatly prolongs service life.
Ball valve can include an accumulation of energy sealing ring 83, and the pressure of accumulation of energy sealing ring 83 is located between valve rod 8 and stuffing box 9, and
Accumulation of energy sealing ring 83 is located at the top of thrust washer 81.By the ball valve of accumulation of energy sealing ring 83 under HF switch, sealing
Also it can keep good, greatly prolong service life.
In order to reach the effect for strengthening ball valve sealing.Ball valve can include a metal washer 91, a filler assembly 92, one
Filler pressing sleeve 93, a gland flange 94, metal washer 91 and filler assembly 92 press located at stuffing box 9 internal face top with
Between the outer surface of valve rod 8, filler assembly 92 seals, and prevents ball valve from being leaked outside in pumped (conveying) medium.Gland flange
94 are connected to the top of stuffing box 9, and filler pressing sleeve 93 is sheathed on the outer surface of valve rod 8, and the pressure of filler pressing sleeve 93 is located at filler group
Between part 92 and gland flange 94.Filler assembly 92 is compressed by filler pressing sleeve 93 and gland flange 94, further strengthens sealing
Effect.Filler assembly 92 can be used cooperatively using wire with graphite, and both ends are put into by the filler of wire plus graphite, pure
The filler of graphite is put into centre, ensures the sealing to valve rod 8, meanwhile, it also prevent pure graphite damage.
Ball valve, which can include, compresses stud 95, nut 96, spring loaded 97, and the bottom for compressing stud 95 is connected to filler
Case 9, and compress stud 95 and pass through gland flange 94, nut 96 is connected to the top for compressing stud 95 and being located at gland flange 94,
The pressure of spring loaded 97 is located between gland flange 94 and nut 96.Clamp nut 96 and gland can compensate for by spring loaded 97
The gap during loosening of flange 94, ensure the sealing effectiveness of filler assembly 92.
Ball valve can also include a lower shaft lid 10, a properties of journal bearing lubricated 101, and lower shaft lid 10 is connected to the bottom of main valve body 1
Portion, the bottom of core 3 are provided with one second groove, and lower shaft lid 10 is inserted in the second groove.Properties of journal bearing lubricated 101 is sheathed on lower shaft
The outer surface of lid 10, and properties of journal bearing lubricated 101 is between core 3 and lower shaft lid 10.Properties of journal bearing lubricated 101 plays lubrication and made
With, realize ball valve switch when without jam phenomenon, convenient use.Meanwhile effectively prevent core 3 from producing skew dislocation in motion
Phenomenon, greatly prolong service life.
Structure of the present utility model is novel, reasonable, with leakage rate is small under cryogenic, safe, reliability is high
The features such as.The utility model application elastic component is arranged in the structure in soft valve seat, not only solves soft valve seat in high and low temperature state
The problem of lower easily failure, and the design being combined using soft valve seat, hard valve seat, effectively raise valve seat and core
Sealing reliability.
Further, as elastic component metal material spring, it is original to lose its for nonmetallic materials under low-temperature condition
Elastic compensating ability when, can still be continuously soft valve seat and reliable elastic compensating is provided, soft valve seat is kept reliable close
Seal function；And it also ensure that core and valve seat can be contacted closely always by the 3rd elastic component and the 4th elastic component, then add
The sealing property and reliability of valve is greatly improved as ensureing in upper hard valve seat very much.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and the scope of protection of the utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments,
But these changes and modification each fall within the scope of protection of the utility model.
Claims (14)
1. a kind of ball valve, including a core, a main valve body, the left secondary valve body being oppositely arranged and right auxiliary valve body, the left secondary valve body
The both ends of the main valve body, the left secondary valve body, the main valve body and the right auxiliary valve body are removably connected to right auxiliary valve body
An accommodation space is surrounded, the core is located in the accommodation space, it is characterised in that the ball valve also includes：
The hard valve seat in a left side being oppositely arranged and right hard valve seat, the left hard valve seat are located between the left secondary valve body and the core,
The right hard valve seat is located between the right auxiliary valve body and the core；
The the first left soft valve seat and the first right soft valve seat being oppositely arranged, the described first left soft valve seat pressure located at the left hard valve seat with
Between the core, the described first right soft valve seat pressure is located at the right side firmly between valve seat and the core；
The the second left soft valve seat and the second right soft valve seat being oppositely arranged, the described second left soft valve seat pressure located at the left hard valve seat with
Between the left secondary valve body, the described second right soft valve seat pressure is located at the right side firmly between valve seat and the right auxiliary valve body.
2. ball valve as claimed in claim 1, it is characterised in that divide in the described first left soft valve seat and the first right soft valve seat
Not She You the first left elastic component and the first right elastic component, the first left elastic component is arranged in the described first left soft valve seat, institute
The first right elastic component is stated to be arranged in the described first right soft valve seat.
3. ball valve as claimed in claim 2, it is characterised in that the left hard valve seat is provided with one first accommodating chamber, and described first
Left soft valve seat has one first contact site, one first compressed part, and first pressed parts are in first accommodating chamber and pressing
In the left hard valve seat, and the first left elastic component is embedded in first compressed part, the first contact site dew
For the hard valve seat in a left side, and first contact site is resisted against the core；
The right hard valve seat is provided with one second accommodating chamber, and there is the described first right soft valve seat one second contact site, one second to compress
Portion, second pressed parts are in second accommodating chamber and pressing in the right hard valve seat, and the first right elasticity
Part is embedded in second compressed part, and second contact site is exposed to the hard valve seat in the right side, and second contact site supports
It is against the core.
4. ball valve as claimed in claim 1, it is characterised in that divide in the described second left soft valve seat and the second right soft valve seat
Not She You the second left elastic component and the second right elastic component, the second left elastic component is arranged in the described second left soft valve seat, institute
The second right elastic component is stated to be arranged in the described second right soft valve seat.
5. ball valve as claimed in claim 4, it is characterised in that the left hard valve seat is provided with one the 3rd accommodating chamber, and described second
Left soft valve seat has one the 3rd contact site, one the 3rd compressed part, and the 3rd pressed parts are in the 3rd accommodating chamber and pressing
In left hard valve seat, and the second left elastic component is embedded in the 3rd compressed part, and the 3rd contact site is exposed to
The hard valve seat in a left side, and the 3rd contact site is resisted against the left secondary valve body；
The right hard valve seat is provided with one the 4th accommodating chamber, and there is the described second right soft valve seat one the 4th contact site, one the 4th to compress
Portion, the 4th pressed parts are in the 4th accommodating chamber and pressing in the right hard valve seat, and the second right elasticity
Part is embedded in the 4th compressed part, and the 4th contact site is exposed to the hard valve seat in the right side, and the 4th contact site supports
It is against the right auxiliary valve body.
6. ball valve as claimed in claim 1, it is characterised in that the material of the left hard valve seat and the right hard valve seat is gold
Belong to material, the first left soft valve seat, the first right soft valve seat, the second left soft valve seat and the second right soft valve seat
Material is nonmetallic materials.
7. ball valve as claimed in claim 1, it is characterised in that the ball valve includes：
One first trim ring, first trim ring are arranged at the left side firmly between valve seat and the left secondary valve body, first trim ring
Provided with one first cavity, the 3rd elastic component is embedded in first cavity, and the both ends of the 3rd elastic component are born against
In the left secondary valve body and first trim ring；
One second trim ring, second trim ring are arranged at the right side firmly between valve seat and the right auxiliary valve body, second trim ring
Provided with one second cavity, the 4th elastic component is embedded in second cavity, and the both ends of the 4th elastic component are born against
In the right auxiliary valve body and second trim ring.
8. ball valve as claimed in claim 7, it is characterised in that the ball valve includes the first valve seat pad, the first valve seat gear
Ring, the second valve seat pad, the second valve seat baffle ring, the first valve seat pad, the first valve seat baffle ring, the second left soft valve
Seat is set in turn between first trim ring and the left hard valve seat, the second valve seat pad, the second valve seat baffle ring,
Described second left soft valve seat is set in turn between second trim ring and the right hard valve seat.
9. ball valve as claimed in claim 1, it is characterised in that the ball valve includes：
One valve rod, the valve rod are rotatably inserted into the main valve body, and the valve rod is connected to the top of the core；
One stuffing box, the stuffing box is sheathed on the valve rod, and the stuffing box is connected to the top of the main valve body；
One thrust washer, the thrust washer are sheathed on the valve rod, and the thrust washer be located at the stuffing box with it is described
Between valve rod.
10. ball valve as claimed in claim 9, it is characterised in that the top of the core is provided with one first groove, the filler
Case is inserted in first groove, and the ball valve includes sliding bearing on one, and the upper sliding bearing is sheathed on described fill out
The outer surface of hopper, and the upper sliding bearing is between the stuffing box and the core.
11. ball valve as claimed in claim 9, it is characterised in that the ball valve includes an accumulation of energy sealing ring, and the accumulation of energy is close
Seal pressure is located between the valve rod and the stuffing box, and the accumulation of energy sealing ring is located at the top of the thrust washer.
12. ball valve as claimed in claim 9, it is characterised in that the ball valve include a metal washer, a filler assembly,
One filler pressing sleeve, a gland flange, the metal washer and the filler assembly press the internal face located at the stuffing box
Between top and the outer surface of the valve rod, the gland flange is connected to the top of the stuffing box, the filler pressing sleeve set
Located at the outer surface of the valve rod, and filler pressing sleeve pressure is located between the filler assembly and the gland flange.
13. ball valve as claimed in claim 12, it is characterised in that the ball valve, which includes, compresses stud, nut, load bullet
Spring, the bottom for compressing stud is connected to the stuffing box, and the compression stud passes through the gland flange, the nut
It is connected to the compression stud and is located at the gland flange and institute positioned at the top of the gland flange, the spring loaded pressure
State between nut.
14. such as the ball valve any one of claim 1-13, it is characterised in that the ball valve includes：
One lower shaft lid, the lower shaft lid are connected to the bottom of the main valve body, and the bottom of the core is provided with one second groove, institute
Lower shaft lid is stated to be inserted in second groove；
One properties of journal bearing lubricated, the properties of journal bearing lubricated is sheathed on the outer surface of the lower shaft lid, and the properties of journal bearing lubricated is located at
Between the core and the lower shaft lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706907.9U CN206889734U (en) | 2017-06-16 | 2017-06-16 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706907.9U CN206889734U (en) | 2017-06-16 | 2017-06-16 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889734U true CN206889734U (en) | 2018-01-16 |
Family
ID=61318944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720706907.9U Expired - Fee Related CN206889734U (en) | 2017-06-16 | 2017-06-16 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322425A (en) * | 2020-04-16 | 2020-06-23 | 重庆川仪调节阀有限公司 | High-sealed high-frequency ball valve |
-
2017
- 2017-06-16 CN CN201720706907.9U patent/CN206889734U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322425A (en) * | 2020-04-16 | 2020-06-23 | 重庆川仪调节阀有限公司 | High-sealed high-frequency ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180702 Address after: 201323 32 Pudong New Area Golden Road Industrial Park, Zhu Qiao Town, Shanghai Patentee after: FLOAUTO (SHANGHAI) CONTROL VALVE Co.,Ltd. Address before: 201323 Pudong New Area, 32, 2, Jin Liang Road, Shanghai. Patentee before: YANKE (SHANGHAI) VALVE INDUSTRY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |