CN206072405U - A kind of ultra-low temperature ball valve - Google Patents
A kind of ultra-low temperature ball valve Download PDFInfo
- Publication number
- CN206072405U CN206072405U CN201620958218.2U CN201620958218U CN206072405U CN 206072405 U CN206072405 U CN 206072405U CN 201620958218 U CN201620958218 U CN 201620958218U CN 206072405 U CN206072405 U CN 206072405U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- spheroid
- low temperature
- ultra
- 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.)
- Active
Links
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model discloses a kind of ultra-low temperature ball valve, including valve body and left body, spheroid is arranged between valve body and left body, the spheroid and valve rod connection, valve seat is provided between spheroid and valve body, elastomeric element and packing ring between valve seat and left body, is provided with, elastomeric element and packing ring are set gradually from outside to inside, valve body is provided with fire prevention face secondary seal, and valve seat is provided with anti-cold flow structure.This utility model has advantages below：With fire protection design, when fire occurs, effectively can seal；Valve seat after embrittlement has elastic compensating ability, and spheroid can reach seal request；Avoid the generation for causing situations such as spherome surface damage or valve seat embrittlement；Simple and practical convenience；Design with anti-cold flow, nonmetallic valve seat elastic groove structure can be avoided by excessive compression, it is to avoid the generation of " locking " phenomenon, ruggedness are stronger, service life is persistently, cost-effective.
Description
Technical field
This utility model belongs to ball valve technical field, and specifically, this utility model is related to a kind of ultra-low temperature ball valve.
Background technology
At present, all can be using to ultra-low temperature ball valve, in pipeline on electric power, waterpower, petrochemical industry, the pipeline of metallurgy industry
The cut-out of liquid.Ge great valve plants, for ultra-low temperature ball valve, generally using left and right identical valve seat construction, only lean on both at home and abroad now
The pretightning force sealed valve applied when compressing by left body.As shown in figure 1,1 being valve rod in figure, 2 is valve seat, and 5 is left body, and 6 is valve
Body.
Three are designed with than larger shortcoming using this：
Shortcoming 1：This structure is compensated without valve seat fragility.Valve seat is generally politef (PTFE), polytrifluorochloroethylene
(PCTFE) plastic material, itself has black brittleness, and the valve seat elastic compensating ability after embrittlement dies down, if spheroid precision
Without sufficiently high, seal request is extremely difficult to；And the seat hardness after embrittlement is drastically raised, be likely to result in spherome surface damage or
Valve seat embrittlement.Easily occur to reveal, cause security incident.
Shortcoming 2：Without fire protection design, this structure without fire protection design, when fire occurs, it is impossible to effectively seal, so as to easily lead
Cause bigger security incident.
Shortcoming 3：This structure is designed without anti-cold flow.At present low-temperature test be nearly all using outer cold process, i.e., using coolant from
Heat is extracted outside tested valve, valve temperature is reduced.And the actual working conditions of Subzero valve are:Cryogenic media is from valve
Inside is flow through, external contact room temperature or comparative high temperature environment.The problem that outer cold process is brought is to make Subzero valve first in test
Phase produces a thermograde contrary with actual condition, and valve body and left body are quickly cooled down, generation volume contraction, and now ball
Body, valve seat are not yet completely cold, especially because the heat-blocking action of nonmetallic valve seat, has further delayed heat transfer process.
Now, original cooperation is changed, and the nonmetallic sealing ring of nonmetallic valve seat or stack valve seat may be subject to excessive compression, make
It is difficult into each component actuation, we tentatively this phenomenon be called:Low temperature locking.Low temperature locking can be such that nonmetallic valve seat produces forever
The thermal coefficient of expansion of the nonmetallic materials such as property deformation, i.e., so-called " cold flow " phenomenon, also, politef is greater than metal material long
Material, with the gradually balance of inside and outside temperature, internals are shunk, and seal pressure is reduced or disappeared, sealing pair failure.Even if low temperature is tried
Qualified product is tested, as the thermograde of cryogenic piping actual condition may be present all the time, the temperature levels of valve housing are high
When internals, assembling, the seal pressure of pre-add can decrease, it would still be possible to sealing effectiveness can be caused to decline.
Number of patent application is that 201510862509.1 utility model patent discloses a kind of ultralow temperature of long service life
Ball valve, including：Valve body, the spheroid being arranged in valve body and the valve rod being connected with spheroid upper end, are arranged on valve body upper end valve rod
The lengthening neck in outside, the entrance point valve seat being arranged between the left body of entrance point and spheroid, be arranged on port of export valve body and spheroid it
Between port of export valve seat, be provided with intake channel in the left body of the entrance point and entrance point valve seat, in the port of export valve body
Exit passageway is provided with port of export valve seat, is provided with the spheroid and to be interconnected with intake channel and exit passageway
Lumen passage, in the upper end for lengthening neck and is provided with airtight and watertight padding between valve rod, lengthens neck in the airtight and watertight padding upper end
Be provided with the gland cooperated with airtight and watertight padding between valve rod, but the patent still do not solve it is ultralow in actual condition
The occurrence of warm ball valve low temperature locking, compensate without valve seat fragility, without fire protection design, design without anti-cold flow, and complex structure ratio
More complicated, production cost is higher.
The patent of invention of the number of patent application number of being 201210296584.2 is disclosed and a kind of roof-mounted ultra-low temperature ball valve,
Including valve body, valve component, valve ball, bonnet assemblies and valve rod assembly, it is characterized in：Valve component includes valve cup ring and pressure ring,
Valve cup ring is provided with the first mounting groove, and sealing ring is embedded with the mounting groove, and valve cup ring is provided with flange, and valve cup ring is provided with
First shoulder and the second shoulder, are provided with support set and spring holder between first shoulder and valve body, stage clip is embedded with spring holder,
Second shoulder forms annular seal space with valve body, pressure ring, is provided with spring energy-storage circle in ring packing intracavity；Valve cup ring and valve
Fire proof construction is provided between the mating surface of body.The present invention is by the turnup structure fixed seal ring on valve cup ring, close by annular
Envelope chamber and spring energy-storage circle come seal valve seat and valve body, while fire proof construction is set between valve body and valve cup ring, so that it is guaranteed that
Under ultralow-temperature operation conditions, the sealing that valve seat is coordinated with valve ball, valve cup ring have reliable sealing and valve with the binding site of valve body
The fire safety function of door.But the patent of invention complex structure, does not still solve ultra-low temperature ball valve low temperature in actual condition
The occurrence of locking, design without anti-cold flow, and complex structure is more complicated, production cost is higher.
Utility model content
In order to overcome above problems of the prior art, this utility model to provide a kind of 1. ultra-low temperature ball valves, including
Valve body and left body, spheroid are arranged between valve body and left body, it is characterised in that：The spheroid and valve rod connection, spheroid and valve body
Between be provided with valve seat, elastomeric element and packing ring are provided between valve seat and left body, elastomeric element and packing ring are set gradually from outside to inside,
Valve body is provided with fire prevention face secondary seal, and valve seat is provided with anti-cold flow structure.
Preferably, the valve seat includes main valve seat and auxiliary-seat.
Any of the above-described scheme is preferably, and the auxiliary-seat applies pretightning force by elastomeric element.
Any of the above-described scheme is preferably, and the elastomeric element is spring.
Any of the above-described scheme is preferably, and the packing ring is made using metal material.
Any of the above-described scheme is preferably, and the fire prevention face secondary seal is metal coating lip.
Any of the above-described scheme is preferably, and the anti-cold flow structure is elastic groove.
Any of the above-described scheme is preferably, and the valve seat adopts Teflon monomer material and perfluoroalkoxy resin altogether
Polymers is made.
Beneficial effect
This utility model provides a kind of ultra-low temperature ball valve, including valve body and left body, and the left side is provided with spring and packing ring in vivo,
And auxiliary-seat；Main valve seat is provided with the left body valve body.
With advantages below：
（1）. this structure has fire protection design, when fire occurs, effectively can seal, so as to avoid potential safety hazard
Occur；
（2）. spring structure can overcome the disadvantages that the valve seat flexibility decrease phenomenon after embrittlement, and spheroid can reach seal request；Avoid
Spherome surface is caused to damage or generation situations such as valve seat embrittlement；
（3）. simple and practical convenience；
（4）. design with anti-cold flow, nonmetallic valve seat elastic groove structure can be avoided by excessive compression, it is to avoid " embrace
Extremely " the generation of phenomenon；
（5）. ruggedness is stronger, and service life is persistently, cost-effective.
Description of the drawings
Fig. 1 is ultra-low temperature ball valve structural representation of the prior art；
Structural representations of the Fig. 2 for one preferred implementation of this utility model ultra-low temperature ball valve；
A partial structurtes enlarged diagrams of the Fig. 3 for Fig. 2；
Another partial structurtes enlarged diagrams of the Fig. 4 for Fig. 2；
Another partial structurtes enlarged diagrams of the Fig. 5 for Fig. 2；
1st, valve rod；2nd, main valve seat；3rd, packing ring；4th, spring；5th, Zuo Ti；6th, valve body；7th, spheroid；8th, auxiliary-seat；9th, metal is protected
Lip care side；10th, elastic groove.
Specific embodiment
In order to be best understood from the technical solution of the utility model and advantage, below by way of specific embodiment, and combine attached
Figure is described further to this utility model.
Embodiment 1.1
As Figure 1-Figure 2, a kind of ultra-low temperature ball valve, including valve body 6 and left body 5, spheroid 7 are arranged on valve body 6 and left body 5
Between, the spheroid 7 and valve rod 1 connect, and be provided with valve seat, be provided with elastic between valve seat and left body 5 between spheroid 7 and valve body 6
Part and packing ring 3, elastomeric element and packing ring 3 are set gradually from outside to inside, and valve body 6 is provided with fire prevention face secondary seal, on valve seat
It is provided with anti-cold flow structure.
The technical scheme that this utility model further optimizes, the valve seat include main valve seat 2 and auxiliary-seat 8.Valve seat point master
Valve seat 2 and auxiliary-seat 8, medium entrance auxiliary-seat 8 apply pretightning force using elastomeric element, and during compensation 2 fragility of main valve seat, deformation is not
The defect of foot, so as to more preferably realize sealing, as shown in Figure 3.
The technical scheme that this utility model further optimizes, the auxiliary-seat 8 apply pretightning force by elastomeric element.It is described
Main valve seat 2 is sealed to the active force of ball by medium.
Embodiment 2.1
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, including valve body 6 and left body 5, spheroid 7 is arranged on valve body 6
And left body 5 between, the spheroid 7 and valve rod 1 connect, and be provided with valve seat, be provided between valve seat and left body 5 between spheroid 7 and valve body 6
Elastomeric element and packing ring 3, elastomeric element and packing ring 3 are set gradually from outside to inside, and valve body 6 is provided with fire prevention face secondary seal,
Valve seat is provided with anti-cold flow structure, and the elastomeric element is spring 4.
Embodiment 2.2
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, including valve body 6 and left body 5, spheroid 7 is arranged on valve body 6
And left body 5 between, the spheroid 7 and valve rod 1 connect, and be provided with valve seat, be provided between valve seat and left body 5 between spheroid 7 and valve body 6
Elastomeric element and packing ring 3, elastomeric element and packing ring 3 are set gradually from outside to inside, and valve body 6 is provided with fire prevention face secondary seal,
Valve seat is provided with anti-cold flow structure, and the packing ring is packing ring 3.
Embodiment 3.1
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, including valve body 6 and left body 5, spheroid 7 is arranged on valve body 6
And left body 5 between, the spheroid 7 and valve rod 1 connect, and be provided with valve seat, be provided between valve seat and left body 5 between spheroid 7 and valve body 6
Elastomeric element and packing ring 3, elastomeric element and packing ring 3 are set gradually from outside to inside, and valve body 6 is provided with fire prevention face secondary seal,
Valve seat is provided with anti-cold flow structure.The cushion rubber bumper is packing ring 3, and the packing ring 3 is made using metal.
Embodiment 4.1
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, a kind of ultra-low temperature ball valve is different from embodiment 1.1
It is that including valve body 6 and left body 5, spheroid 7 is arranged between valve body 6 and left body 5, and the spheroid 7 and valve rod 1 connect, 7 He of spheroid
Valve seat is provided between valve body 6, elastomeric element and packing ring 3 between valve seat and left body 5, is provided with, elastomeric element and packing ring 3 are from outside to inside
Set gradually, valve body 6 is provided with fire prevention face secondary seal, valve seat is provided with anti-cold flow structure, and the cushion rubber bumper is packing ring
3, the packing ring 3 is made using metal, the fire prevention face secondary seal be metal coating lip 9, fire protection design, fire
When, when valve seat is in the case where burning out, the metal coating lip 9 for having a machining on valve body 6 can serve as secondary seal,
So as to reduce the further deterioration of security incident, as shown in Figure 4.
Embodiment 5.1
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, a kind of ultra-low temperature ball valve is different from embodiment 1.1
It is that including valve body 6 and left body 5, spheroid 7 is arranged between valve body 6 and left body 5, and the spheroid 7 and valve rod 1 connect, 7 He of spheroid
Valve seat is provided between valve body 6, elastomeric element and packing ring 3 between valve seat and left body 5, is provided with, elastomeric element and packing ring 3 are from outside to inside
Set gradually, valve body 6 is provided with fire prevention face secondary seal, valve seat is provided with anti-cold flow structure, and the cushion rubber bumper is packing ring
3, the packing ring 3 is made using metal, and the fire prevention face secondary seal is metal coating lip 9, the anti-cold flow knot
Structure is elastic groove 10.When being tested using outer cold process, the 5 quick cooling of valve body 6 and left body, generation volume contraction, and now spheroid
7th, valve seat is not yet completely cold, especially because the heat-blocking action of nonmetallic valve seat, has further delayed heat transfer process, this
When can be avoided by excessive compression due to the effect valve seat of elastic groove 10, it is to avoid the generation of " locking " phenomenon.As shown in Figure 5.
Embodiment 5.2
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, including valve body 6 and left body 5, spheroid 7 is arranged on valve body 6
And left body 5 between, the spheroid 7 and valve rod 1 connect, and be provided with valve seat, be provided between valve seat and left body 5 between spheroid 7 and valve body 6
Elastomeric element and packing ring 3, elastomeric element packing ring 3 are set gradually from outside to inside, and valve body 6 is provided with fire prevention face secondary seal, valve
Seat is provided with anti-cold flow structure, and the cushion rubber bumper is packing ring 3, and the packing ring 3 is made using metal, the fire prevention face two
Level sealing member is metal coating lip 9, and the anti-cold flow structure is elastic groove 10, and the valve seat adopts politef（PTFE）
And perfluoroalkoxy resin（PFA）Copolymer.
Embodiment 5.3
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, including valve body 6 and left body 5, spheroid 7 is arranged on valve body 6
And left body 5 between, the spheroid 7 and valve rod 1 connect, and be provided with valve seat, be provided between valve seat and left body 5 between spheroid 7 and valve body 6
Elastomeric element and cushion rubber bumper, elastomeric element and packing ring 3 are set gradually from outside to inside, and valve body 6 is provided with fire prevention face secondary seal
Part, valve seat are provided with anti-cold flow structure, and the cushion rubber bumper is packing ring 3, and the packing ring 3 is made using metal, described anti-
Fiery face secondary seal is metal coating lip 9, and the anti-cold flow structure is elastic groove 10, and the valve seat adopts perfluoro alkoxy
Resin copolymer.
Embodiment 5.4
A kind of ultra-low temperature ball valve, from unlike embodiment 1.1, a kind of ultra-low temperature ball valve is different from embodiment 1.1
It is that including valve body 6 and left body 5, spheroid 7 is arranged between valve body 6 and left body 5, and the spheroid 7 and valve rod 1 connect, 7 He of spheroid
Valve seat is provided between valve body 6, elastomeric element and packing ring 3 between valve seat and left body 5, is provided with, elastomeric element and packing ring 3 are from outside to inside
Set gradually, valve body 6 is provided with fire prevention face secondary seal, valve seat is provided with anti-cold flow structure, and the cushion rubber bumper is packing ring
3, the packing ring 3 is made using metal material, and the fire prevention face secondary seal is metal coating lip 9, described anti-cold
Flow structure is elastic groove 10, and the valve seat is using Teflon monomer material and perfluoroalkoxy resin copolymer.Valve seat material
Material is using monomer material politef（PTFE）And perfluoroalkoxy resin（PFA）Copolymer, which has purity height, intensity
Well, the advantages of big permeability of toughness is low and elastic high.The heatproof of this material, pressure performance strengthen equivalent to glass fiber
PTFE and fibre reinforced PTFE.When using in the case of extreme temperature, valve seat can keep pure white, can avoid due to adopting
Pollution medium caused during with other black reinforcing materials.The valve seat of this material is due to relatively low permeability, being permitted
Many occasions have prominent performance.
It should be noted that various embodiments above is only to illustrate the technical solution of the utility model, rather than a limitation；
Although being described in detail to this utility model with reference to foregoing embodiments, one of ordinary skill in the art should manage
Solution：Which still can be modified to the technical scheme described in foregoing embodiments, or to which part or whole skills
Art feature carries out equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from this utility model
The scope of each embodiment technical scheme.
Claims (7)
1. a kind of ultra-low temperature ball valve, including valve body（6）With left body（5）, spheroid（7）It is arranged on valve body（6）With left body（5）Between,
It is characterized in that：The spheroid（7）And valve rod（1）Connection, spheroid（7）And valve body（6）Between be provided with valve seat, valve seat and left body
（5）Between be provided with elastomeric element and packing ring（3）, elastomeric element and packing ring（3）Set gradually from outside to inside, valve body（6）It is provided with
Fire prevention face secondary seal, valve seat are provided with anti-cold flow structure.
2. a kind of ultra-low temperature ball valve as claimed in claim 1, it is characterised in that：The valve seat includes main valve seat（2）With secondary valve
Seat（8）.
3. a kind of ultra-low temperature ball valve as claimed in claim 2, it is characterised in that：The auxiliary-seat（8）Apply by elastomeric element
Plus pretightning force.
4. a kind of ultra-low temperature ball valve as described in claim 1 or 3, it is characterised in that：The elastomeric element is spring（4）.
5. a kind of ultra-low temperature ball valve as claimed in claim 1, it is characterised in that：The packing ring（3）Made using metal material
Form.
6. a kind of ultra-low temperature ball valve as claimed in claim 1, it is characterised in that：The fire prevention face secondary seal is protected for metal
Lip care side（9）.
7. a kind of ultra-low temperature ball valve as claimed in claim 1, it is characterised in that：The anti-cold flow structure is elastic groove（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958218.2U CN206072405U (en) | 2016-08-27 | 2016-08-27 | A kind of ultra-low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958218.2U CN206072405U (en) | 2016-08-27 | 2016-08-27 | A kind of ultra-low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206072405U true CN206072405U (en) | 2017-04-05 |
Family
ID=58434046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620958218.2U Active CN206072405U (en) | 2016-08-27 | 2016-08-27 | A kind of ultra-low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206072405U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084022A (en) * | 2018-09-21 | 2018-12-25 | 上海沪东造船阀门有限公司 | A kind of ultralow temperature ball valve seals |
| CN113790283A (en) * | 2021-09-29 | 2021-12-14 | 江苏神通阀门股份有限公司 | Two-section type low-temperature forged steel floating ball valve |
| CN114060563A (en) * | 2021-12-21 | 2022-02-18 | 江苏华英阀业有限公司 | Valve seat structure of ultra-low temperature nonmetal sealing floating ball valve |
-
2016
- 2016-08-27 CN CN201620958218.2U patent/CN206072405U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084022A (en) * | 2018-09-21 | 2018-12-25 | 上海沪东造船阀门有限公司 | A kind of ultralow temperature ball valve seals |
| CN113790283A (en) * | 2021-09-29 | 2021-12-14 | 江苏神通阀门股份有限公司 | Two-section type low-temperature forged steel floating ball valve |
| CN114060563A (en) * | 2021-12-21 | 2022-02-18 | 江苏华英阀业有限公司 | Valve seat structure of ultra-low temperature nonmetal sealing floating ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206072405U (en) | A kind of ultra-low temperature ball valve | |
| CN105697786A (en) | Ultra-low-temperature sealing ring | |
| CN102797868A (en) | Top-mounted ultra-low temperature ball valve | |
| CN206530768U (en) | A kind of vacuum valve packing box seal structure | |
| CN202659955U (en) | Top-mounted low-temperature fixed ball valve | |
| CN102705525B (en) | Top-entry low-temperature fixed ball valve | |
| CN213839648U (en) | Middle-cavity self-discharging low-temperature ball valve | |
| CN107461503A (en) | A kind of special regulating valve of HTHP | |
| CN103775674A (en) | Low-temperature spherical valve | |
| CN203286129U (en) | Valve seat seal long in service life and good in sealing effect | |
| CN202176778U (en) | Self-operated pressure regulating valve in soft sealing structure | |
| CN205592413U (en) | Low temperature promptly breaks away from valve | |
| CN207178723U (en) | A kind of floating type hard sealing structure in metal valve | |
| CN105587884A (en) | Low-temperature emergency release valve | |
| CN205504064U (en) | Soft or hard double sealing ball valve | |
| CN209762277U (en) | Hard-seal zero-leakage bidirectional pressure butterfly valve | |
| CN210218750U (en) | Novel high-temperature-resistant ball valve capable of relieving pressure | |
| CN205479466U (en) | Unsteady ball valve seating structure | |
| CN219013528U (en) | Low-temperature stop valve | |
| CN201802876U (en) | Filler sealing liner fluoroplastic adjusting valve | |
| CN205207705U (en) | Disk seat of eccentric butterfly valve | |
| CN218913809U (en) | Double-cut-off and discharge floating ball valve | |
| CN212480246U (en) | Umbrella valve device with good use effect | |
| CN217003343U (en) | Straight stroke valve rod seal assembly | |
| CN216923278U (en) | Fireproof ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610225 No. four, No. 1128, Airport Road, Southwest Economic Development Zone, Chengdu, Sichuan Patentee after: Emerson automation (Sichuan) Co., Ltd. fluid control Address before: 610225 No. four, No. 1128, Airport Road, Southwest Economic Development Zone, Chengdu, Sichuan Patentee before: Valve industry (Sichuan) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610225 No. four, No. 1128, Airport Road, Southwest Economic Development Zone, Chengdu, Sichuan Patentee after: Emerson automation (Sichuan) Co., Ltd. fluid control Address before: 610225 No. four, No. 1128, Airport Road, Southwest Economic Development Zone, Chengdu, Sichuan Patentee before: Valve industry (Sichuan) Co., Ltd. |