CN210739521U - Special emergency cut-off valve for hydrogen fluoride - Google Patents
Special emergency cut-off valve for hydrogen fluoride Download PDFInfo
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- CN210739521U CN210739521U CN201921577522.2U CN201921577522U CN210739521U CN 210739521 U CN210739521 U CN 210739521U CN 201921577522 U CN201921577522 U CN 201921577522U CN 210739521 U CN210739521 U CN 210739521U
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- valve
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- barrel
- hydrogen fluoride
- sealing
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Abstract
The utility model belongs to the technical field of the high-risk medium trip valve, concretely relates to special emergency cut-off valve of hydrogen fluoride, be fixed with the tube-shape barrel on disk seat inner wall, the border is equipped with the tapered tube that the opening diminishes gradually under the barrel, with tapered tube formula structure as an organic whole, the inside piston head that is equipped with of barrel, the piston head basal surface is equipped with the frustum, piston head and tapered platform formula structure as an organic whole, the piston head is used for the closure to the barrel inside the barrel, the piston head surface is equipped with a plurality of sealing washer, the laminating of sealing washer surface and barrel inner wall, piston head top surface vertical fixation has the valve rod, the valve rod passes behind the valve body opening and fixes with. The utility model discloses a pneumatic mode of cylinder cuts off the valve body, and is fast, cuts off in time, adopts "piston" formula piston head and barrel cooperation to seal to be equipped with a plurality of sealing washer at the piston head surface, the multilayer sealing washer is closely laminated with the barrel inner wall, has increased and has cut off the leakproofness.
Description
Technical Field
The utility model belongs to the technical field of the high-risk medium trip valve, concretely relates to special emergency cut-off valve of hydrogen fluoride.
Background
Hydrogen fluoride, also called hydrofluoric acid, a relatively industrial raw materials who uses commonly in the industry, because its high corruption, irritability, carry as high-risk medium when carrying with liquid, consequently be high-risk medium, must install the quick action emergency valve on pipeline, in order to avoid unexpected accidents such as revealing, current quick action emergency valve adopts the rotation type to cut off, cut off rate is not fast, simultaneously, disk seat and valve clack are because receiving long-time hydrogen fluoride stimulation in the valve body, receive corrosion damage easily, leakproofness is not good when causing the cutting off.
SUMMERY OF THE UTILITY MODEL
To solve the technical problem, the utility model aims to provide a special emergency cut-off valve for hydrogen fluoride.
Special emergency cut-off valve of hydrogen fluoride, which comprises a valve body, the disk seat, and be equipped with the valve gap through the screw rod fastening at the opening part of valve body upper end, be fixed with the tube-shape barrel on the disk seat inner wall, the border is equipped with the tapered tube that the opening diminishes gradually under the barrel, with tapered tube formula structure as an organic whole, the inside piston head that is equipped with of barrel, the piston head basal surface is equipped with the toper platform, piston head and toper platform formula structure as an organic whole, the piston head is used for the closure to the barrel inside the barrel, the piston head surface is equipped with a plurality of sealing washer, sealing washer surface and the laminating of barrel inner wall, piston head top surface vertical fixation has the valve rod, the valve rod is fixed with the piston rod of.
The valve rod is provided with a sealing filler through the valve cover, and a filler pressing plate is arranged above the sealing filler.
The valve rod is provided with a sealing seat through the valve cover, and the sealing seat is positioned below the sealing filler.
The cylinder has an air inlet and an air outlet.
The cylinder, the piston head and the valve rod are all made of fluoroplastics.
The inner surface of the valve body and the inner surface of the valve cover are lined with a fluoroplastic layer.
Compared with the prior art, the utility model, following beneficial effect has.
(1) The utility model adopts the pneumatic mode of the cylinder to cut off the valve body, the speed is high, and the cutting off is timely;
(2) the utility model discloses a "piston" formula piston head seals with the barrel cooperation to be equipped with a plurality of sealing washer at the piston head surface, the multilayer sealing washer closely laminates with the barrel inner wall, has increased and has cut off the leakproofness.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of the piston head of FIG. 1;
fig. 3 is a schematic perspective view of the cylinder in fig. 1.
In the figure: 1. the valve comprises a valve body 2, a valve seat 3, a sealing seat 4, a U-shaped support 5, a cylinder 6, a packing pressing plate 7, a sealing packing 8, a valve cover 9, a screw rod 10, a valve rod 11, a cylinder body 12, a piston head 13, a sealing ring 14, a conical table 15 and a conical cylinder.
Detailed Description
The invention will be further described with reference to the following examples and drawings.
As shown in fig. 1-2, the emergency cut-off valve special for hydrogen fluoride of the utility model comprises a valve body 1 and a valve seat 2, a valve cover 8 fastened by a screw 9 is arranged at an opening at the upper end of the valve body 1, a cylindrical barrel body 11 is fixed on the inner wall of the valve seat 2, a conical barrel 15 with a gradually-reduced opening is arranged at the lower edge of the barrel body 11, the piston head 12 is arranged inside the cylinder body 11, the conical table 14 is arranged on the bottom surface of the piston head 12, the piston head 12 and the conical table 14 are of an integrated structure, the piston head 12 is used for sealing the cylinder body 11 inside the cylinder body 11, a plurality of sealing rings 13 are arranged on the outer surface of the piston head 12, the outer surface of each sealing ring 13 is attached to the inner wall of the cylinder body 11, a valve rod 10 is vertically fixed to the top surface of the piston head 12, the valve rod 10 penetrates through an opening of the valve body 1 and then is fixed to a piston rod of the air cylinder 5, and the air cylinder 5 is fixed to the valve.
The valve rod 10 is provided with a sealing filler 7 through the valve cover 8, and a filler pressing plate 6 is arranged above the sealing filler 7.
The valve rod 10 is provided with a sealing seat 3 through the valve cover 8, and the sealing seat 3 is positioned below the sealing filler 7.
The cylinder 5 has an air inlet and an air outlet.
The cylinder 11, the piston head 12 and the valve rod 10 are all made of fluoroplastic.
The inner surface of the valve body 1 and the inner surface of the valve cover 8 are lined with a fluoroplastic layer.
Claims (6)
1. The utility model provides a special quick emergency valve of hydrogen fluoride, includes valve body (1), disk seat (2) to be equipped with valve gap (8) through screw rod (9) fastening, its characterized in that at the opening part of valve body (1) upper end: be fixed with tube-shape barrel (11) on disk seat (2) inner wall, barrel (11) lower limb is equipped with tapered tube (15) that the opening gradually diminishes, with tapered tube (15) formula structure as an organic whole, barrel (11) inside is equipped with piston head (12), piston head (12) basal surface is equipped with frustum (14), piston head (12) and frustum (14) formula structure as an organic whole, piston head (12) are used for the closure to barrel (11) inside barrel (11), piston head (12) surface is equipped with a plurality of sealing washer (13), sealing washer (13) surface and barrel (11) inner wall laminating, piston head (12) top surface vertical fixation has valve rod (10), valve rod (10) pass behind valve body (1) opening and are fixed with the piston rod of cylinder (5), cylinder (5) are fixed on valve gap (8) through "U" type support (4).
2. The emergency cutoff valve dedicated to hydrogen fluoride according to claim 1, characterized in that: the valve rod (10) is provided with a sealing filler (7) through the valve cover (8), and a filler pressing plate (6) is arranged above the sealing filler (7).
3. The emergency cutoff valve dedicated to hydrogen fluoride according to claim 1, characterized in that: the valve rod (10) is provided with a sealing seat (3) through the valve cover (8), and the sealing seat (3) is positioned below the sealing filler (7).
4. The emergency cutoff valve dedicated to hydrogen fluoride according to claim 1, characterized in that: the cylinder (5) has an air inlet and an air outlet.
5. The emergency cutoff valve dedicated to hydrogen fluoride according to claim 1, characterized in that: the cylinder body (11), the piston head (12) and the valve rod (10) are all made of fluoroplastic.
6. The emergency cutoff valve dedicated to hydrogen fluoride according to claim 1, characterized in that: the inner surface of the valve body (1) and the inner surface of the valve cover (8) are lined with a fluoroplastic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577522.2U CN210739521U (en) | 2019-09-20 | 2019-09-20 | Special emergency cut-off valve for hydrogen fluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577522.2U CN210739521U (en) | 2019-09-20 | 2019-09-20 | Special emergency cut-off valve for hydrogen fluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210739521U true CN210739521U (en) | 2020-06-12 |
Family
ID=71005052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921577522.2U Active CN210739521U (en) | 2019-09-20 | 2019-09-20 | Special emergency cut-off valve for hydrogen fluoride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210739521U (en) |
-
2019
- 2019-09-20 CN CN201921577522.2U patent/CN210739521U/en active Active
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