CN206816947U - Novel high-temperature high-pressure gauge valve sealing structure - Google Patents
Novel high-temperature high-pressure gauge valve sealing structure Download PDFInfo
- Publication number
- CN206816947U CN206816947U CN201720308889.9U CN201720308889U CN206816947U CN 206816947 U CN206816947 U CN 206816947U CN 201720308889 U CN201720308889 U CN 201720308889U CN 206816947 U CN206816947 U CN 206816947U
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- hole
- bonnet
- gland
- screw thread
- filler
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- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims abstract description 45
- 239000000945 filler Substances 0.000 claims abstract description 34
- 238000012856 packing Methods 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims abstract description 7
- 239000011799 hole material Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
It the utility model is related to a kind of Novel high-temperature high-pressure gauge valve sealing structure, including gland, gland nut, valve rod, filler pressing sleeve, filler, bonnet, Packing seat, bonnet fit is arranged on stem exterior, load Packing seat, filler and filler pressing sleeve between bonnet and valve rod successively from bottom to top, gland pretension is arranged on above filler pressing sleeve, gland is coordinated by screw thread to be fixed between bonnet internal thread m1 and threaded stem, the outer oblique angle step on valve rod is pressed together on the edge of the screw thread transitional pore of gland；Soft seal is formed between filler and bonnet hole wall and valve rod, gland nut with the external screw thread M2 of bonnet cooperations, fastening by locking gland, significantly improving the firm stability of total and reliable security performance, sealing property more ensures that service life is longer.
Description
Technical field
It the utility model is related to nuclear power equipment automation control system, and in particular to a kind of for HTHP gauge valve
Sealing structure.
Background technology
The structure of wide variety of gauge valve is mostly general ordinary construction, and the core level gauge valve in nuclear power equipment,
Due to requiring that service life reaches 60 years under with high temperature, high pressure and high radiation medium state, so high temperature resistant to valve,
High pressure, the sealing property under high radiation position, resistance to persistence energy, handling, security performance are all most important.
Utility model content
The utility model proposes a kind of Novel high-temperature high-pressure gauge valve sealing structure regarding to the issue above, significantly improves
Total firm stability and reliable security performance, sealing property more ensure that service life is longer.
Specific technical scheme is as follows：
Novel high-temperature high-pressure gauge valve sealing structure, including gland, gland nut, valve rod, filler pressing sleeve, fill out
Material, bonnet, Packing seat；
There is the valve pocket hole of three step cutting patterns, wherein roundlet outer diameter of step and valve body one end from small to large outside the bonnet
Coordinate, the interior step of middle round outer diameter of step and valve body coordinates, and the inwall of great circle step and bonnet nut coordinates, the A of middle round platform rank
Face is secondary sealing area, and the B faces of middle round platform rank are the first thrust face, and the top of great circle step is external screw thread M2, external screw thread M2 with
Gland nut coordinates；The first through hole being coaxially disposed with bonnet, the second through hole, threeway are sequentially provided with bonnet from bottom to top
Hole, the end face and the end face of roundlet step of first through hole are flush, and the internal diameter of first through hole is respectively less than the second through hole and threeway
The internal diameter in hole, the second through hole coordinate with filler and filler pressing sleeve, and third through-hole is provided with internal thread m1, internal thread m1 and gland
External screw thread M3 coordinate；
The fourth hole and fifth hole being coaxially disposed are provided with the gland, fourth hole is located at fifth hole
Top, fourth hole is interior to be provided with internal thread m2, and internal thread m2 coordinates with threaded stem, and fifth hole is screw thread transitional pore；Filler
External screw thread M3 is provided with outside gland, there is escape external screw thread M3 roots, and a circle cylinder projection is provided with above external screw thread M3, cylinder
C faces and cylindrical outer wall coordinate with gland nut inwall bottom；
Is provided with the 6th through hole in the bonnet nut, the 6th through hole is provided with internal thread m3, and internal thread m3 tops are provided with the
Two steps, second step b faces are the second thrust face；
Bonnet fit is arranged on stem exterior, loads Packing seat, filler between bonnet and valve rod successively from bottom to top and fills out
Expect gland, gland pretension is arranged on above filler pressing sleeve, and gland is coordinated by screw thread is fixed on bonnet internal thread m1
Between threaded stem, the outer oblique angle step on valve rod is set to be pressed together on the edge of the screw thread transitional pore of gland；Filler with
Soft seal is formed between bonnet hole wall and valve rod, gland nut with the external screw thread M2 of bonnet cooperations, fastening by locking filler pressure
Lid.
Above-mentioned Novel high-temperature high-pressure gauge valve sealing structure, wherein, the valve rod is provided with fixing hole, and fixing hole goes out
Mouthful end is inwardly gathered in truncated cone-shaped structure, and a circle evagination step, the trapezoidal structure of evagination step profile section, evagination are additionally provided with valve rod
Step is with fixed hole position in same one end.
The beneficial effects of the utility model are：
1st, the utility model is simple in construction, and central coaxial is good, and overall sealing performance is excellent, and operation is light.
2nd, using forced bonnet and locking mechanism, make overall structure firmer, stably, improve anti-seismic performance, safety
Reliably.
3rd, excellent unlatching terminates back seal performance, ensures under the situation of valve contingency filler position wear and leakage,
It can ensure that to be not in leakage.
Brief description of the drawings
Fig. 1 is the utility model sectional structure chart.
Fig. 2 is the profile of bonnet.
Fig. 3 is the profile of gland.
Embodiment
To make the technical solution of the utility model become apparent from clearly, below in conjunction with the accompanying drawings entering the utility model traveling one
Step description, any scheme drawn to the technical characteristic progress equivalencing of technical solutions of the utility model and conventional reasoning fall
Enter scope of protection of the utility model.
Reference
Gland 1, gland nut 2, valve rod 3, filler pressing sleeve 4, filler 5, bonnet 6, Packing seat 7, roundlet step 8, in
Round platform rank 9, great circle step 10, first through hole 11, the second through hole 12, third through-hole 13, fourth hole 14, fifth hole 15, move back
Cutter groove 16, cylinder projection 17, fixing hole 20, evagination step 21.
A kind of Novel high-temperature high-pressure gauge valve sealing structure as shown in the figure, including gland 1, gland nut 2, valve rod
3rd, filler pressing sleeve 4, filler 5, bonnet 6, Packing seat 7；There are three step cutting patterns one end from small to large outside the bonnet, and its is medium and small
The valve pocket hole of the external diameter of round platform rank 8 and valve body coordinates, and the interior step of the middle external diameter of round platform rank 9 and valve body coordinates, great circle step 10 and valve
The inwall of box nut coordinates, and the A faces of middle round platform rank are secondary sealing area, and the B faces of middle round platform rank are the first thrust face, great circle step
Top be external screw thread M2, external screw thread M2 coordinates with gland nut；It is sequentially provided with bonnet and is coaxially disposed with bonnet from bottom to top
First through hole 11, the second through hole 12, third through-hole 13, the end face and the end face of roundlet step of first through hole be flush, first
The internal diameter of through hole is respectively less than the internal diameter of the second through hole and third through-hole, and the second through hole coordinates with filler and filler pressing sleeve, threeway
Hole is provided with internal thread m1, the external screw thread M3 cooperations of internal thread m1 and gland；
The fourth hole 14 and fifth hole 15 being coaxially disposed are provided with the gland, fourth hole is logical positioned at the 5th
The top in hole, fourth hole is interior to be provided with internal thread m2, and internal thread m2 coordinates with threaded stem, and fifth hole is screw thread transitional pore；
External screw thread M3 is provided with outside gland, there is escape 16 external screw thread M3 roots, and a circle cylinder projection is provided with above external screw thread M3
17, the C faces of cylinder and cylindrical outer wall coordinate with gland nut inwall bottom；
The valve rod is provided with fixing hole 20, and for fixed spool, the port of export of fixing hole is inwardly gathered in truncated cone-shaped knot
Structure, a circle evagination step 21 is additionally provided with valve rod, the trapezoidal structure of evagination step profile section, evagination step is with fixed hole position in same
End；
Bonnet fit is arranged on stem exterior, loads Packing seat, filler between bonnet and valve rod successively from bottom to top and fills out
Expect gland, gland pretension is arranged on above filler pressing sleeve, and gland is coordinated by screw thread is fixed on bonnet internal thread m1
Between threaded stem, the outer oblique angle step on valve rod is set to be pressed together on the edge of the screw thread transitional pore of gland；Filler with
Soft seal is formed between bonnet hole wall and valve rod, gland nut with the external screw thread M2 of bonnet cooperations, fastening by locking filler pressure
Lid；Rotated by valve rod, realize being turned on and off for valve, when opening valve, which is further continued for opening, arrives final position, under valve rod
Oblique angle step closes with gland lower end bore edges outside portion, realizes the back seal of valve.
Claims (2)
1. Novel high-temperature high-pressure gauge valve sealing structure, it is characterized in that, including gland, gland nut, valve rod, filler pressure
Set, filler, bonnet, Packing seat；
There are three step cutting patterns one end from small to large outside the bonnet, and the valve pocket hole of wherein roundlet outer diameter of step and valve body is matched somebody with somebody
Close, the interior step of middle round outer diameter of step and valve body coordinates, and the inwall of great circle step and bonnet nut coordinates, the A faces of middle round platform rank
For secondary sealing area, the B faces of middle round platform rank are the first thrust face, and the top of great circle step is external screw thread M2, external screw thread M2 and pressure
Box nut coordinates；The first through hole being coaxially disposed with bonnet, the second through hole, third through-hole are sequentially provided with bonnet from bottom to top,
The end face of first through hole and the end face of roundlet step are flush, and the internal diameter of first through hole is respectively less than the second through hole and third through-hole
Internal diameter, the second through hole and filler and filler pressing sleeve coordinate, and third through-hole is provided with internal thread m1, internal thread m1 and gland outside
Screw thread M3 coordinates；
The fourth hole and fifth hole being coaxially disposed are provided with the gland, fourth hole is located at the upper of fifth hole
Side, fourth hole is interior to be provided with internal thread m2, and internal thread m2 coordinates with threaded stem, and fifth hole is screw thread transitional pore；Filler pressure
Lid is outside to be provided with external screw thread M3, and there is escape external screw thread M3 roots, and a circle cylinder projection, the C of cylinder are provided with above external screw thread M3
Face and cylindrical outer wall coordinate with gland nut inwall bottom；
The 6th through hole is provided with the bonnet nut, the 6th through hole is provided with internal thread m3, second is provided with the top of internal thread m3
Rank, second step b faces are the second thrust face；
Bonnet fit is arranged on stem exterior, loads Packing seat, filler and filler pressure between bonnet and valve rod successively from bottom to top
Set, gland pretension are arranged on above filler pressing sleeve, and gland is coordinated by screw thread is fixed on bonnet internal thread m1 and valve
Between bar screw thread, the outer oblique angle step on valve rod is set to be pressed together on the edge of the screw thread transitional pore of gland；Filler and bonnet
Soft seal is formed between hole wall and valve rod, gland nut with the external screw thread M2 of bonnet cooperations, fastening by locking gland.
2. Novel high-temperature high-pressure gauge valve sealing structure as claimed in claim 1, it is characterized in that, the valve rod is provided with solid
Determine hole, the port of export of fixing hole is inwardly gathered in truncated cone-shaped structure, and a circle evagination step, evagination step profile section are additionally provided with valve rod
Trapezoidal structure, evagination step is with fixed hole position in same one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720308889.9U CN206816947U (en) | 2017-03-28 | 2017-03-28 | Novel high-temperature high-pressure gauge valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720308889.9U CN206816947U (en) | 2017-03-28 | 2017-03-28 | Novel high-temperature high-pressure gauge valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816947U true CN206816947U (en) | 2017-12-29 |
Family
ID=60752883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720308889.9U Active CN206816947U (en) | 2017-03-28 | 2017-03-28 | Novel high-temperature high-pressure gauge valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816947U (en) |
-
2017
- 2017-03-28 CN CN201720308889.9U patent/CN206816947U/en active Active
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| GR01 | Patent grant |