CN205298595U - Corrosion -resistant valve of superhigh pressure - Google Patents
Corrosion -resistant valve of superhigh pressure Download PDFInfo
- Publication number
- CN205298595U CN205298595U CN201620069876.6U CN201620069876U CN205298595U CN 205298595 U CN205298595 U CN 205298595U CN 201620069876 U CN201620069876 U CN 201620069876U CN 205298595 U CN205298595 U CN 205298595U
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- valve
- interface
- valve seat
- disk seat
- valve body
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Abstract
The utility model discloses a super high pressure valve. The utility model aims to provide a corrosion -resistant valve of superhigh pressure that can avoid the helicitic texture to receive the corruption including the valve body, is equipped with the interface that is used for connecting the case subassembly on the valve body, the interface is external thread pipe, the case subassembly includes the disk seat that has the flange and wears the pressure -bearing nut of cover on the disk seat, the disk seat stretches into connect rather than the tight fit in the interface, the pressure -bearing nut with interface thread connects to compress tightly the flange of disk seat on the terminal surface of interface, flange on the disk seat forms the plane with the interface through corrosion -resistant sealing washer and seals. Through changing into external thread pipe with the interface for the helicitic texture of being connected with the disk seat is in the valve body outside, avoids the helicitic texture by the inside liquid corrosion of valve body, the interface forms the plane with the disk seat and seals, can prevent that inside liquid from corroding the external screw thread structure on the interface because of hypertonia oozes, effectively prevents to leak because of the liquid that the threaded connection inefficacy arouses, is showing the security and the life that improve the valve.
Description
Technical field
The utility model belongs to Super high pressure valve field, is specifically related to the improvement of valve inner seal structure.
Background technology
Super high pressure valve is a kind of Bonding pressure transmitter or manometric valve, primarily of valve body, shut-off valve assemblies, wash water valve assembly composition.
In prior art, shut-off valve assemblies and wash water valve assembly adopt with valve body and are threaded, and as shown in Figure 1: owing to screw thread is in valve inner, when conveying corrosive liquid, screw thread is very easily corroded, and causes seal failure, leak of liquid.
Practical novel content
The purpose of this utility model is to provide a kind of ultra-high voltage anticorrosion valve, it is possible to avoids screw thread to be corroded, prevents seal failure, it is to increase work-ing life.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of ultra-high voltage anticorrosion valve, comprises valve body, and described valve body is provided with the interface for connection valve core assembly, and described interface is outside screw pipe; The pressure-bearing nut that described core assembly comprises the valve seat with flange and is set on valve seat; Described valve seat stretches in described interface and its tight fit connection; Described pressure-bearing nut is connected with described interface thread, and is pressed on the end face of described interface by the flange of described valve seat; Flange and described interface on described valve seat form flat seal by corrosion-resistant sealing-ring.
The utility model has following useful effect: by interface is changed into outside screw pipe so that the helicitic texture being connected with valve seat is in valve body outside, helicitic texture so just can be avoided by the liquid corrosion of valve inner; Simultaneously, interface and valve seat define flat seal by corrosion-resistant sealing-ring, can prevent internal liquid from eroding to the external thread structure on interface because hypertonia is oozed out, effectively prevent the leak of liquid losing efficacy and causing because being threaded, significantly improve security and the work-ing life of valve.
Accompanying drawing explanation
Fig. 1 is the structural representation of Super high pressure valve in prior art;
Fig. 2 is internal structure schematic diagram of the present utility model;
Fig. 3 is the partial enlargement figure of A in Fig. 2;
Fig. 4 is outside structural representation of the present utility model.
Embodiment
As shown in Figures 2 to 4, a kind of ultra-high voltage anticorrosion valve, comprises valve body 1, and described valve body 1 is provided with the interface 2 for connection valve core assembly, and described interface 2 is outside screw pipe; The pressure-bearing nut 4 that described core assembly comprises the valve seat 3 with flange and is set on valve seat 3; Described valve seat 3 stretches in described interface 2 and its tight fit connection; Described pressure-bearing nut 4 is threaded with described interface 2, and is pressed on the end face of described interface 2 by the flange of described valve seat 3; Flange and described interface on described valve seat form flat seal by corrosion-resistant sealing-ring. Pressure-bearing nut 4 can resist the liquid pressure of valve body 1 inside, thus protects flat seal not to be destroyed, and prevents valve seat 3 from interface 2 loose or dislocation simultaneously.
In technique scheme, by interface 2 is changed into outside screw pipe so that it is outside that the helicitic texture being connected with valve seat 3 is in valve body 1, and helicitic texture so just can be avoided by the liquid corrosion of valve body 1 inside; Simultaneously, interface 2 and valve seat 1 define flat seal by corrosion-resistant sealing-ring 11, can prevent internal liquid from eroding to the external thread structure on interface because hypertonia is oozed out, effectively prevent the leak of liquid losing efficacy and causing because being threaded, significantly improve security and the work-ing life of valve.
Further, described valve seat 3 is connected with screw thread cover 6 by internal thread, and described screw thread cover 6 is connected with the set nut 5 being pressed together on valve seat 3 upper end, and set nut 5 can prevent screw thread cover 6 from loosening; It is tapped nut that described screw thread overlaps 6 upper ends, described nut thread is connected with driving stem 7, described driving stem 7 upper end is connected with handle 10, its lower end is connected with valve rod 8, handle 10 just can allow driving stem 7, by helicitic texture, turning motion is converted into translational motion after rotating, thus band ovable valve stem 8 moves up and down, it is achieved the opening and closing of valve; Described valve rod 8 periphery is provided with lock packing, and lock packing can prevent liquid from infiltrating screw thread cover 6, avoids screw thread cover 6 to be destroyed with the screw connection structure of valve seat 3; Described lock packing can be pressed in described valve seat 3 by described screw thread cover 6.
Further, described lock packing comprises metal washer setting up and down and the elastic washer being arranged between described metal washer, and elastic washer plays main sealing effect, and metal washer can play the effect of protection elastic washer.
Further, described interface 2 comprises shut off valve interface and wash water valve interface, and the core assembly of stopping valve 12 is identical with the structure of the core assembly of wash water valve 13, identical with the connection structure of interface 2, and just present position is different; Described interface 2 is one-body molded with described valve body 1. One-body molded can reduce leak source, it is to increase intensity.
Further, the liquid transmission channel in described valve body 1 is provided with blowdown branch road; Described liquid transmission channel cuts off by stopping valve 12; Described trapway passage is opened by wash water valve 13; The outlet of described blowdown branch road is by stifled 9 sealings. Increase blowdown branch road, the impurity of valve body 1 inside can be got rid of, prevent line clogging.
Claims (5)
1. a ultra-high voltage anticorrosion valve, comprises valve body, and described valve body is provided with the interface for connection valve core assembly, it is characterised in that: described interface is outside screw pipe; The pressure-bearing nut that described core assembly comprises the valve seat with flange and is set on valve seat; Described valve seat stretches in described interface and its tight fit connection;Described pressure-bearing nut is connected with described interface thread, and is pressed on the end face of described interface by the flange of described valve seat; Flange and described interface on described valve seat form flat seal by corrosion-resistant sealing-ring.
2. ultra-high voltage anticorrosion valve according to claim 1, it is characterised in that: described valve seat is connected with screw thread cover by internal thread, and described screw thread puts the set nut being connected with and being pressed together on valve seat upper end; Described screw thread set upper side is tapped nut, and described nut thread is connected with driving stem; Described driving stem upper end is connected with handle, and its lower end is connected with valve rod; Described valve rod periphery is provided with lock packing; Described lock packing can be pressed in described valve seat by described screw thread cover.
3. ultra-high voltage anticorrosion valve according to claim 2, it is characterised in that: described lock packing comprises metal washer setting up and down and the elastic washer being arranged between described metal washer.
4. ultra-high voltage anticorrosion valve according to claim 1, it is characterised in that: described interface comprises the interface being respectively used to connect stopping valve core assembly and wash water valve core assembly; Described interface and described valve body are one-body molded.
5. ultra-high voltage anticorrosion valve according to claim 1 or 4, it is characterised in that: the liquid transmission channel in described valve body is provided with blowdown branch road; Described liquid transmission channel cuts off by stopping valve; Described trapway passage is opened by wash water valve; The outlet of described blowdown branch road is sealed by stifled head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069876.6U CN205298595U (en) | 2016-01-25 | 2016-01-25 | Corrosion -resistant valve of superhigh pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069876.6U CN205298595U (en) | 2016-01-25 | 2016-01-25 | Corrosion -resistant valve of superhigh pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298595U true CN205298595U (en) | 2016-06-08 |
Family
ID=56426493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620069876.6U Active CN205298595U (en) | 2016-01-25 | 2016-01-25 | Corrosion -resistant valve of superhigh pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298595U (en) |
-
2016
- 2016-01-25 CN CN201620069876.6U patent/CN205298595U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |