CN208169571U - Full welded flange ball valve - Google Patents
Full welded flange ball valve Download PDFInfo
- Publication number
- CN208169571U CN208169571U CN201820457374.XU CN201820457374U CN208169571U CN 208169571 U CN208169571 U CN 208169571U CN 201820457374 U CN201820457374 U CN 201820457374U CN 208169571 U CN208169571 U CN 208169571U
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- China
- Prior art keywords
- valve
- barrel
- valve body
- spool
- rod
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Abstract
The utility model discloses full welded flange ball valves, including valve body, spool, valve rod and driving device, it is characterized in that, the valve body includes middle valve body and the left valve barrel for being set to middle valve body both ends, right valve barrel, three is welded into valve body entirety, the left valve barrel, right valve barrel one end is provided with flange terminal pad, the spool is connected to described valve rod one end, the valve rod is connect after running through the middle body with the driving device, sleeve is provided between the valve rod and the middle valve body, the spool both ends are provided with self compensation valve seat sealing mechanism, the utility model uses three-chip type welding structure, and flange terminal pad is set at valve body both ends, facilitate installation and maintenance replacement, and use self compensation valve seat sealing mechanism, greatly promote valve base seal property.
Description
Technical field
The utility model belongs to machinery valve field, more particularly to full welded flange ball valve.
Background technique
Currently, full welded flange ball valve using more and more common, be widely used in natural gas, petroleum, heat supply, chemical industry and
The isometric defeated pipeline field of thermoelectricity pipe network, however, the valve base seal property of full welded flange ball valve is general, since standard forms
Cause to need to cut replacing valve to replace valve base sealing, so that increasing maintenance, repair cost, returns management and bring shadow
It rings.
Utility model content
The purpose of this utility model is to provide full welded flange ball valves, use three-chip type welding structure, and in valve body
Flange terminal pad is arranged in both ends, facilitates installation and maintenance replacement, and use self compensation valve seat sealing mechanism, greatly promotes valve seat
Sealing performance.
The utility model in order to solve the above technical problems, adopts the following technical scheme that：Full welded flange ball valve, including valve
Body, spool, valve rod and driving device, the valve body include middle valve body and left valve barrel, the right valve barrel for being set to middle valve body both ends, and three
Person is welded into valve body entirety, and the left valve barrel, right valve barrel one end are provided with flange terminal pad, and the spool is connected to the valve
Bar one end, the valve rod connect with the driving device after running through the middle body, are arranged between the valve rod and the middle valve body
There is sleeve, the spool both ends are provided with self compensation valve seat sealing mechanism.
As advanced optimizing for the utility model, the self compensation valve seat sealing mechanism includes memory alloy spring, valve
Seat and sealing ring, the memory alloy spring are respectively arranged in the groove of the left valve barrel and the right valve barrel, the sealing
Circle is embedded on the valve seat, the sealing ring and the spool spherical surface forming face sealing structure.
As advanced optimizing for the utility model, it is provided between the valve seat and the left valve barrel and the right valve barrel
2 secondary teflin rings.
As advanced optimizing for the utility model, axle sleeve and 2~4 are disposed between the valve rod and the sleeve
Layer teflon gasket.
Using above technical scheme, the utility model is had the following advantages that：
The utility model uses three-chip type welding structure, and flange terminal pad is arranged at valve body both ends, facilitates installation and dimension
Replacement is repaired, and uses self compensation valve seat sealing mechanism, when environment temperature gradually rises, memory alloy spring is progressively longer, but
It squeezes valve seat in a limited space, so that the sealing ring on valve seat squeezes spool, prevents the sealing leak under hot environment,
Greatly promote valve base seal property；It is disposed with axle sleeve and 2~4 layers of teflon gasket between valve rod and sleeve, poly- four
The working performance of the self-lubricating property poppet stem of vinyl fluoride, and axle sleeve is cooperated to guarantee the sealing at valve rod.
Detailed description of the invention
Fig. 1 is the schematic internal view of the utility model.
In figure：1, middle body, 2, sleeve, 3, middle valve body, 4, right valve barrel, 5, memory alloy spring, 6, valve seat, 7, sealing ring,
8, valve rod, 9, spool, 10, left valve barrel.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, in this specific embodiment, the utility model offer full welded flange ball valve of, including valve body,
Spool 9, valve rod 8 and driving device 1, which is characterized in that the valve body includes middle valve body 3 and the left side for being set to middle 3 both ends of valve body
Valve body 10, right valve barrel 4, three are welded into valve body entirety, and the left valve barrel 10,4 one end of right valve barrel are provided with flange terminal pad,
The spool 9 is connected to described 8 one end of valve rod, and the valve rod 8 is connect after running through the middle valve body 3 with the driving device 1,
Sleeve 2 is provided between the valve rod 8 and the middle valve body 3,9 both ends of spool are provided with self compensation valve seat sealing mechanism；
Self compensation valve seat sealing mechanism includes memory alloy spring 5, valve seat 6 and sealing ring 7, and the memory alloy spring 5 is installed respectively
In the groove of the left valve barrel 10 and the right valve barrel 4, the sealing ring 7 is embedded on the valve seat 6, the sealing ring 7
Surface seal structure is formed with 9 spherical surface of spool；It is secondary poly- that 2 are provided between valve seat 6 and the left valve barrel 10 and the right valve barrel 4
Tetrafluoroethene sealing ring；With the above arrangement, valve uses three-chip type welding structure, and flanged joint is set at valve body both ends
Disk facilitates installation and maintenance replacement, and uses self compensation valve seat sealing mechanism, when environment temperature gradually rises, memorial alloy
Spring 5 is progressively longer, but interior its squeezes valve seat 6 in a limited space, so that the sealing ring 7 on valve seat 6 squeezes spool 9, prevents
Sealing leak under hot environment, greatly promotes 6 sealing performance of valve seat, the 2 secondary teflin rings that valve seat 6 is arranged,
Keep the movement of valve seat more smoothly, the sealing reaction speed of lifting valve base.
Axle sleeve and 2~4 layers of teflon gasket are disposed between valve rod 8 and the sleeve 2, polytetrafluoroethylene (PTFE)
The working performance of self-lubricating property poppet stem 8, and axle sleeve is cooperated to guarantee the sealing at valve rod 8.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. full welded flange ball valve, including valve body, spool (9), valve rod (8) and driving device (1), which is characterized in that the valve
Body includes middle valve body (3) and is set to the left valve barrel (10) at middle valve body (3) both ends, right valve barrel (4), and it is whole that three is welded into a valve body
Body, the left valve barrel (10), right valve barrel (4) one end are provided with flange terminal pad, and the spool (9) is connected to the valve rod (8)
One end, the valve rod (8) connects afterwards through the middle valve body (3) with the driving device (1), the valve rod (8) with it is described in
It is provided between valve body (3) sleeve (2), spool (9) both ends are provided with self compensation valve seat sealing mechanism.
2. full welded flange ball valve according to claim 1, which is characterized in that the self compensation valve seat sealing mechanism includes
Memory alloy spring (5), valve seat (6) and sealing ring (7), the memory alloy spring (5) are respectively arranged in the left valve barrel
(10) and in the groove of the right valve barrel (4), the sealing ring (7) is embedded on the valve seat (6), the sealing ring (7) with
Spool (9) spherical surface forms surface seal structure.
3. full welded flange ball valve according to claim 1, which is characterized in that the valve seat (6) and the left valve barrel
(10) 2 secondary teflin rings are provided between the right valve barrel (4).
4. full welded flange ball valve according to claim 1, which is characterized in that the valve rod (8) and the sleeve (2) it
Between be disposed with axle sleeve and 2~4 layers of teflon gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820457374.XU CN208169571U (en) | 2018-04-03 | 2018-04-03 | Full welded flange ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820457374.XU CN208169571U (en) | 2018-04-03 | 2018-04-03 | Full welded flange ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208169571U true CN208169571U (en) | 2018-11-30 |
Family
ID=64371404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820457374.XU Active CN208169571U (en) | 2018-04-03 | 2018-04-03 | Full welded flange ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208169571U (en) |
-
2018
- 2018-04-03 CN CN201820457374.XU patent/CN208169571U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 No. 3281 Yongqiang Road, Shacheng Street, Longwan District, Wenzhou City, Zhejiang Province Patentee after: Hangong Valve Co., Ltd. Address before: 325000 Second Floor, No. 3275 Yongqiang Road, Shacheng Street, Longwan District, Wenzhou City, Zhejiang Province Patentee before: Zhejiang Hangong Valve Co., Ltd. |