CN208687003U - A kind of ball valve of replaceable sealing structure - Google Patents
A kind of ball valve of replaceable sealing structure Download PDFInfo
- Publication number
- CN208687003U CN208687003U CN201821403075.4U CN201821403075U CN208687003U CN 208687003 U CN208687003 U CN 208687003U CN 201821403075 U CN201821403075 U CN 201821403075U CN 208687003 U CN208687003 U CN 208687003U
- Authority
- CN
- China
- Prior art keywords
- valve
- sphere
- flap
- sealing structure
- ball valve
- 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
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model relates to valve technology fields, the ball valve of specifically a kind of replaceable sealing structure, including valve deck, valve rod, valve body, flap and sphere, body top is equipped with valve deck, valve seat is equipped in the valve body, body cavity has a cavity for accommodating sphere, sphere is arranged in cavity, flap is mounted on the sphere, contact surface between the flap and valve seat fits to form sealing structure, sphere top center offers a positioning hole, the sphere is connect by the location hole with valve rod, bonnet central has a through-hole, valve rod is located in the through-hole, it is bolted between valve deck and valve body.In the case that sealing surface wear aging is replaced after ball valve long-time service, by dismounting valve deck, take out flap and valve seat, carry out the part replacement of portion sealing element, the utility model can quickly carry out checking maintenance replacement operation online, and flap and the mating replacement of valve base sealing structure, it is ensured that sealing effect, while economy and time cost is greatly saved.
Description
Technical field
The utility model relates to valve technology field, the ball valve of specifically a kind of replaceable sealing structure.
Background technique
Ball valve is mainly used to make the flow direction for cutting off, distributing and changing medium in pipeline, it is only needed with rotation 90
The operation of degree and the rotating torque of very little can close tightly.Ball valve optimum makees switch and uses, it is therefore desirable to keep preferable
Sealing performance.Currently, conventional ball valve is sphere integrated molding, valve seat passes through sphere and valve by being fixedly welded on valve body
Built-up welding is sealed seat respectively, and after a period of use, sealing surface aging, sealing effect is deteriorated, occur in leakage.Once occurring
Replacement needs that valve is integrally dismantled and replaced installation, and time-consuming and laborious, economic cost is also higher.
Utility model content
The purpose of this utility model is exactly to provide a kind of replaceable sealing knot to overcome the above problem in the prior art
The ball valve of structure in the case that sealing surface wear aging is replaced after ball valve long-time service, by dismounting valve deck, takes out flap and valve
Seat, carries out the part replacement of portion sealing element, and the utility model can quickly carry out checking maintenance replacement operation, and flap online
With the mating replacement of valve base sealing structure, it is ensured that sealing effect, while economy and time cost is greatly saved.
To achieve the above object, a kind of ball valve of replaceable sealing structure is provided, including valve deck, valve rod, valve body, flap and
Sphere, the body top are equipped with valve deck, and valve seat is equipped in the valve body, and the body cavity has one to accommodate sphere
Cavity, the sphere are arranged in cavity, and the flap is mounted on the sphere, connecing between the flap and valve seat
Contacting surface fits to form sealing structure, and the sphere top center offers a positioning hole, and the sphere passes through the location hole
Connect with valve rod, the bonnet central has a through-hole, and the valve rod is located in the through-hole, the valve deck and valve body it
Between be bolted.
Preferably, the flap is installed on sphere by screw thread.
Preferably, interior hexagonal counterbore is arranged in the flap center, and the size of the counterbore is φ 26mm, and flap material is adopted
With Inconel 718.
Preferably, sealing ring is equipped between the flap and sphere.
Preferably, the sealing ring uses material for the O-ring of 718 alloy of Inconel.
Preferably, an O-ring seal locating slot is offered on the inside of the flap, is flap locating slot；Correspondingly, exist
An O-ring seal locating slot concentric with the flap locating slot is offered on the sphere, is Sphere orientation slot, described is close
Seal is located in the cavity formed after the flap locating slot is docked with the cooperation of Sphere orientation slot.
Preferably, the depth of the flap locating slot and Sphere orientation slot is 2mm, and diameter is 1/2 nominal diameter.
Preferably, the location hole be provided with sphere top center and diameter it is identical with valve nominal diameter lead to
Hole.
Preferably, the sphere material uses A105 CL1 forging.
Preferably, the sphere bottom integral type is equipped with a locating shaft.
The utility model compared with the existing technology, the advantage is that:
1, the utility model patent is rotated by valve rod drives sphere rotation, and flap is installed on sphere with sphere while turning
Dynamic, ball valve sealing is played in the contact by final flap with valve seat, when wear and aging, which occurs, for sealing structure needs replacing, disassembly
Valve body valve deck connects bolt, takes out flap and valve seat carries out replacement and can put back into.And flap and the mating replacement of valve seat,
Time and economic cost is greatly saved, it can be achieved that online short time maintenance replacement in good seal performance；
2, use material for 718 alloy O-ring of Inconel, flap material uses Inconel 718, and valve seat uses
410SS adds PTFE 25%Class to add 410SS, and sphere uses A105 CL1 forging, by the optimum choice of material, guarantees ball valve
It can use under extreme conditions, using temperature up to 260 DEG C, using pressure up to 25MPa.
Detailed description of the invention
Fig. 1 is the ball valve the schematic diagram of the section structure in the utility model embodiment；
Fig. 2 is the flap valve base sealing structure schematic diagram in the utility model embodiment；
As shown, in figure: 1. valve deck, 2. valve rod, 3. valve body, 4. valve seat, 5. sealing ring, 6. flap, 7. ball
Body.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing, the people of the structure and principle of this device to this profession
For be very clearly.It should be appreciated that specific embodiment described herein is only used to explain the utility model, and do not have to
In restriction the utility model.
As shown in Figure 1, in the present embodiment replaceable sealing structure ball valve, including valve deck 1, valve rod 2, valve body 3, valve seat 4,
Sealing ring 5, flap 6 and sphere 7, wherein valve deck 1 is bolted with valve body 3, by dismantling valve deck 1, can directly take out ball
The valves internals such as body, flap and valve seat.Valve rod 2 is set to 1 center of valve deck, and valve seat 4 is fixedly installed in 3 lumen of valve body, and sphere 7 passes through
Location hole is connect with valve rod 2.Diameter through-hole identical with valve nominal diameter is opened in the middle part of sphere 7, and band is rotated by valve rod 2
Dynamic sphere 7 rotates in same direction.6 screw thread of flap is installed on sphere 7, and flap 6 and valve seat 4 are used cooperatively and form ball valve sealing structure,
Flap valve base sealing structure figure is as shown in Figure 2.Sealing ring 5 is set between flap and sphere, and it is close to guarantee that flap is connect with sphere
Envelope.By the replacement to flap 6 and valve seat 4, the replaceable sealing structure of ball valve is realized.
Flap 6 is with sphere 7 using being threadedly coupled, and interior hexagonal counterbore is arranged in 6 center of flap, having a size of φ 26mm, 6 material of flap
Matter uses Inconel 718.An O-ring seal locating slot, depth 2mm are opened on the inside of flap, diameter is 1/2 nominal diameter.
An O-ring seal locating slot concentric with flap locating slot, depth 2mm, diameter are opened on flap installation side sphere simultaneously
For 1/2 nominal diameter.Sealing ring 5 uses material for 718 alloy O-ring of Inconel, and O-ring is placed in sphere and flap positioning
In slot.Sphere 7 is manufactured using A105 CL1 forging, and lower end is equipped with integrated locating shaft, it is ensured that sphere rotation drives flap and valve seat
Precise positioning.Valve seat 4 adds PTFE 25%Class that tri- kinds of materials of 410SS is added to extrude using 410SS, and valve seat 4 and flap 6 are logical
Attrition process is crossed, sealing performance is reliable.
The specific working mode of the present apparatus is as follows: when valve sealing structure occurs aging or needs replacing, passing through valve rod
Rotation drives sphere Open valve, while dismantling the connection bolt of valve body and valve deck, removes valve deck, take out the intracorporal sphere of valve,
Flap and valve seat.Again by interior hexagonal counterbore on flap, flap and sphere are dismantled with allen wrench.Replace same size model
Flap and O-ring seal, screw flap and connect with sphere.Former valve seat is replaced with associated valve seat simultaneously, extrudes and is installed on valve body
Lumen.It is successively installed by location hole and is put into sphere, valve rod and valve deck, screwed the connection bolt of valve deck and valve body, be finally completed
The online replacement of sealing structure.
Claims (10)
1. a kind of ball valve of replaceable sealing structure, including valve deck, valve rod, valve body, flap and sphere, the body top are set
There is valve deck, be equipped with valve seat in the valve body, it is characterised in that the body cavity has a cavity for accommodating sphere, described
Sphere is arranged in cavity, and the flap is mounted on the sphere, and the contact surface between the flap and valve seat fits
Sealing structure is formed, the sphere top center offers a positioning hole, and the sphere is connect by the location hole with valve rod,
The bonnet central has a through-hole, and the valve rod is located in the through-hole, passes through bolt between the valve deck and valve body
Connection.
2. a kind of ball valve of replaceable sealing structure as described in claim 1, it is characterised in that the flap passes through screw thread
It is installed on sphere.
3. a kind of ball valve of replaceable sealing structure as claimed in claim 2, it is characterised in that the flap center setting
Interior hexagonal counterbore, the size of the counterbore are φ 26mm, and flap material uses Inconel 718.
4. a kind of ball valve of replaceable sealing structure as described in claims 1 or 2 or 3, it is characterised in that the flap with
Sealing ring is equipped between sphere.
5. a kind of ball valve of replaceable sealing structure as claimed in claim 4, it is characterised in that the sealing ring uses material
Matter is the O-ring of 718 alloy of Inconel.
6. a kind of ball valve of replaceable sealing structure as claimed in claim 4, it is characterised in that opened on the inside of the flap
It is flap locating slot equipped with an O-ring seal locating slot；Correspondingly, one is offered on the sphere to position with the flap
The concentric O-ring seal locating slot of slot, is Sphere orientation slot, and the sealing ring is located at the flap locating slot and Sphere orientation slot
In the cavity formed after cooperation docking.
7. a kind of ball valve of replaceable sealing structure as claimed in claim 6, it is characterised in that the flap locating slot and
The depth of Sphere orientation slot is 2mm, and diameter is 1/2 nominal diameter.
8. a kind of ball valve of replaceable sealing structure as described in claim 1, it is characterised in that the location hole is to open up
In sphere top center and diameter through-hole identical with valve nominal diameter.
9. a kind of ball valve of replaceable sealing structure as described in claim 1, it is characterised in that the sphere material uses
A105 CL1 forging.
10. a kind of ball valve of replaceable sealing structure as described in claim 1, it is characterised in that the sphere bottom one
Formula is equipped with a locating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821403075.4U CN208687003U (en) | 2018-08-29 | 2018-08-29 | A kind of ball valve of replaceable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821403075.4U CN208687003U (en) | 2018-08-29 | 2018-08-29 | A kind of ball valve of replaceable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208687003U true CN208687003U (en) | 2019-04-02 |
Family
ID=65887608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821403075.4U Expired - Fee Related CN208687003U (en) | 2018-08-29 | 2018-08-29 | A kind of ball valve of replaceable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208687003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810668A (en) * | 2020-07-25 | 2020-10-23 | 浙江中德自控科技股份有限公司 | Ball valve with replaceable sealing ring |
-
2018
- 2018-08-29 CN CN201821403075.4U patent/CN208687003U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810668A (en) * | 2020-07-25 | 2020-10-23 | 浙江中德自控科技股份有限公司 | Ball valve with replaceable sealing ring |
| CN111810668B (en) * | 2020-07-25 | 2022-02-22 | 浙江中德自控科技股份有限公司 | Ball valve with replaceable sealing ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2017157134A1 (en) | Flat-bottomed ball valve | |
| CN208687003U (en) | A kind of ball valve of replaceable sealing structure | |
| CN203421188U (en) | Worm drive lever-type butterfly valve | |
| CN201844052U (en) | Rotating sphere adjusting valve | |
| CN208816703U (en) | A kind of double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing | |
| CN202203421U (en) | Needle-shaped stop valve | |
| CN202118294U (en) | High-pressure hard seal ball valve | |
| CN110822118A (en) | Ball valve structure convenient to adjust and seal | |
| CN207864638U (en) | Teflon seal butterfly valve | |
| CN208295141U (en) | A kind of butterfly valve with filtering and cleaning function | |
| CN108980376A (en) | Double plate double-valve-seat bidirectional metals or the butterfly valve of nonmetallic sealing | |
| CN210600188U (en) | Stop valve of direction and disk seat integral type | |
| CN212080196U (en) | Five-dimensional eccentric valve rigid line sealing structure | |
| CN204477473U (en) | cutting ball valve | |
| CN209084022U (en) | A kind of soft seal double eccentric butterfly valve that can replace sealing element in real time | |
| CN207999523U (en) | A kind of wear resistant three-way fixing ball valve | |
| CN208605644U (en) | Floating type high-performance butterfly valve | |
| CN209213006U (en) | Very stiff and demanding cone ball face sealing butterfly valve | |
| CN201502730U (en) | Cock-type mud valve | |
| CN219263239U (en) | All-metal hard-seal ball valve with five eccentric structures | |
| CN209587165U (en) | A kind of butterfly valve being conveniently replaceable maintenance | |
| CN204239819U (en) | O type ball valve group | |
| CN220850832U (en) | Eccentric ball valve | |
| CN207728899U (en) | A kind of very stiff and demanding metallic seal butterfly valve | |
| CN208703138U (en) | Upper dress formula butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 Termination date: 20190829 |