CN209115719U - Ultralow temperature upper-mounting type ball valve - Google Patents
Ultralow temperature upper-mounting type ball valve Download PDFInfo
- Publication number
- CN209115719U CN209115719U CN201821061655.XU CN201821061655U CN209115719U CN 209115719 U CN209115719 U CN 209115719U CN 201821061655 U CN201821061655 U CN 201821061655U CN 209115719 U CN209115719 U CN 209115719U
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- China
- Prior art keywords
- valve seat
- spring
- ultralow temperature
- upstream
- filler
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- 239000002184 metal Substances 0.000 claims abstract description 48
- 229910052751 metal Inorganic materials 0.000 claims abstract description 48
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000004146 energy storage Methods 0.000 claims abstract description 19
- 238000012856 packing Methods 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 9
- 239000010439 graphite Substances 0.000 claims abstract description 9
- 229910001026 inconel Inorganic materials 0.000 claims abstract description 9
- 230000013011 mating Effects 0.000 claims abstract description 7
- 239000000945 filler Substances 0.000 claims description 34
- 210000004907 gland Anatomy 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000003949 liquefied natural gas Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Taps Or Cocks (AREA)
- Lift Valve (AREA)
Abstract
A kind of ultralow temperature upper-mounting type ball valve, including valve body, upstream valve seat component, sphere, long-neck valve, upper valve rod, lower valve rod, valve seat nut, spring base, valve seat insert, ultralow temperature one-way sealing spring energy-storage sealing ring, straight pin, upstream metal valve seat, thrust ring, inconel nickel wire graphite packing, cylindrical compression spring, downstream metal valve seat, ultralow temperature two way seal spring energy-storage sealing ring, the ultralow temperature one-way sealing spring energy-storage sealing ring is mounted at the small end outer circle of upstream metal valve seat, thrust ring is packed into upstream metal valve seat beside ultralow temperature one-way sealing spring energy-storage sealing ring, straight pin is sequentially inserted into thrust ring and upstream metal valve seat, inconel nickel wire graphite packing is mounted in the groove of upstream metal valve seat setting, there are four the U-shaped key of protrusion and upstream metal valve seats on spring base On 4 U-type grooves fallen in it is in mating connection, cylindrical compression spring is packed into set by spring base in spring mounting hole, and valve seat nut uses the connection type of screw thread to connect with upstream metal valve seat.
Description
Technical field
The utility model relates to a kind of ultralow temperature upper-mounting type ball valve structures, in particular to a kind of to be suitable for LNG, petrochemical industry, sky
Divide equal low temperature field upper-mounting type ball valve.
Background technique
In recent years, liquefied natural gas plant domestic technology is increasingly mature.Its mating ultra-low temperature ball valve purchases always import
Ultralow temperature upper-mounting type ball valve.And imported product is domestic user, complete unit brings huge high, the maintenance hardly possible of cost, spare part period long
A series of problems, such as.Ultralow temperature upper-mounting type ball valve is developed in success, is filled the domestic gaps, imported product outside effective surrogate is to push away
The urgent need developed into China's ultra-low temperature ball valve in the ultralow temperature such as petrochemical industry, LNG, space division field.
Summary of the invention
The purpose of the utility model is to overcome the shortcomings of the prior art, and provide a kind of convenient for safeguarding, valve seat tool
Have from release, fire prevention, antistatic and good seal performance characteristic, and the ultralow temperature upper-mounting type ball valve structure that unfailing performance is high.
The purpose of this utility model is to complete by following technical solution: a kind of ultralow temperature upper-mounting type ball valve, including valve
Body, upstream valve seat component, sphere, long-neck valve, upper valve rod, lower valve rod, valve seat nut, spring base, valve seat insert, ultralow temperature list
To Packing spring accumulation of energy sealing ring, straight pin, upstream metal valve seat, thrust ring, inconel nickel wire graphite packing, cylinder compression
Spring, downstream metal valve seat, ultralow temperature two way seal spring energy-storage sealing ring, the ultralow temperature one-way sealing spring energy-storage are close
Seal is mounted at the small end outer circle of upstream metal valve seat, and thrust ring is packed into upstream metal valve seat close to ultralow temperature one-way sealing bullet
Beside spring accumulation of energy sealing ring, straight pin is sequentially inserted into thrust ring and upstream metal valve seat, and inconel nickel wire graphite packing is mounted on
There are four the U-shaped keys of protrusion to fall in 4 on upstream metal valve seat in the groove of upstream metal valve seat setting, on spring base
U-type groove it is in mating connection, cylindrical compression spring is packed into set by spring base in spring mounting hole, valve seat nut and upstream gold
Belong to valve seat to connect using the connection type of screw thread.
As preferred: the ultralow temperature two way seal spring energy-storage sealing ring is packed at downstream metal valve seat small end outer circle,
The U-shaped key of protrusion and 4 U-type grooves fallen on downstream metal valve seat are in mating connection there are four on spring base, cylinder pressure
Contracting spring is packed into spring mounting hole set by spring base, and valve seat nut uses the connection type of screw thread with downstream metal valve seat
Connection；
The upper valve rod is connect with sphere by rectangular deep hole, and the torque for providing handle or executing agency acts on
Valve rod can be made to drive sphere rotation when on upper valve rod；The long-neck valve tops are provided with packing seal structure.
As preferred: the valve seat nut is all made of and is threadedly coupled with upstream metal valve seat and downstream metal valve seat, valve seat
Nut circumference is equipped with the mounting groove for dismantling device rotation valve seat nut；
The packing seal structure is by lining ring, filler, filler, filler, filler spacer, hold-down grid and gland
Composition；The filler and lining ring connect, and every being set among filler, the hold-down grid contacts the filler with filler
Connection, the gland are bolted with hold-down grid.
The utility model has convenient for safeguarding, and valve seat has from release, fire prevention, antistatic and good seal performance characteristic,
And unfailing performance it is high the features such as.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is the upstream valve seat structural schematic diagram of the utility model.
Fig. 3 is the downstream valve seat structural schematic diagram of the utility model.
Fig. 4 is the valve seat anti-rotation structure schematic diagram of the utility model.
Fig. 5 is the valve seat and spring base attachment structure schematic diagram of the utility model.
Number and corresponding component title representated by letter in figure: 1, valve body, 2, upstream valve seat component, 3, sphere, 4, steel
Pearl, 5, cylindrical compression spring, 6, middle flange gasket, 7, DU composite bearing, 8, full thread stud, 9, nut, 10, long-neck valve
Lid, 11, drain pan, 12, lining ring, 13, lower filler, 14, middle filler, 15, upper filler, 16, filler spacer, 17, bushing,
18, hold-down grid, 19 limit films, 20, hexagon socket head cap screw, 21, elastomeric pad, 22, handle, 23, cutting ferrule, 24, upper valve
Bar, 25, downstream valve seat component, 26, lower valve rod, 27, DU composite bearing, 28, gasket, 2-1, valve seat nut, 2-2, spring
Seat, 2-3, valve seat insert, 2-4, ultralow temperature one-way sealing spring energy-storage sealing ring, 2-5, straight pin, 2-6, upstream metal
Valve seat, 2-7, thrust ring, 2-8, inconel nickel wire graphite packing, 2-9, cylindrical compression spring, 25-1, downstream metal valve
Seat, 25-2, ultralow temperature two way seal spring energy-storage sealing ring.
Specific embodiment
It is practical new that this is further described below with reference to being specifically illustrating for the clearer understanding of structure for making the utility model
Type.
Referring to figs. 1 to 5, a kind of ultralow temperature upper-mounting type ball valve described in the utility model, including valve body 1, upstream
Valve component 2, sphere 3, long-neck valve 10, upper valve rod 24, lower valve rod 26, valve seat nut 2-1, spring base 2-2, valve seat insert 2-
3, ultralow temperature one-way sealing spring energy-storage sealing ring 2-4, straight pin 2-5, upstream metal valve seat 2-6, thrust ring 2-7, inconel
Nickel wire graphite packing 2-8, cylindrical compression spring 2-9, downstream metal valve seat 25-1, ultralow temperature two way seal spring energy-storage sealing ring
25-2。
The ultralow temperature one-way sealing spring energy-storage sealing ring 2-4 is at the small end outer circle of upstream metal valve seat 2-6, only
Throw-out collar 2-7 is packed into upstream metal valve seat 2-6 beside ultralow temperature one-way sealing spring energy-storage sealing ring 2-4, straight pin 2-5 according to
Secondary insertion thrust ring 2-7, upstream metal valve seat 2-6, inconel nickel wire graphite packing 2-8 are arranged mounted in upstream metal valve seat 2-6
Groove in, on spring base 2-2 there are four protrusion U-shaped key and 4 U-type groove phases fallen on upstream metal valve seat 2-6
It is cooperatively connected, cylindrical compression spring 2-9 is packed into spring mounting hole set by spring base 2-2, valve seat nut 2-1 and upstream gold
Belong to valve seat 2-6 to connect using the connection type of screw thread.The ultralow temperature two way seal spring energy-storage sealing ring 25-2 is packed into downstream
At metal seat valve 25-1 small end outer circle, there are four 4 on the U-shaped key of protrusion and downstream metal valve seat 25-1 on spring base 2-2
The U-type groove fallen in is in mating connection, and cylindrical compression spring 2-9 is packed into spring mounting hole set by spring base 2-2, valve seat
Nut 2-1 is connect with downstream metal valve seat 25-1 using the connection type of screw thread.
Upper valve rod is connect with sphere by Fang Shen to transmit torque, when the torque of handle or executing agency's offer acts on
When on valve rod 24, it can make valve rod 24 that sphere 3 be driven to rotate, to realize valve opening and closing.
The utility model valve seat nut 2-1 and upstream metal valve seat 2-6, downstream metal valve seat 25-1 are all made of screw thread company
It connects, valve seat nut 2-1 circumference is equipped with mounting groove, and when disassembly, stop pin can be sequentially passed through to U-type groove on valve body 1, spring base
Mounting hole on 2-2 rotates valve seat nut 2-1 by dismantling device, and upstream metal valve seat 2-6 will be moved to the direction far from sphere
Dynamic, downstream metal valve seat 25-1 carries out same operation will be mobile to the direction far from sphere, when between the valve seat of upstream and downstream away from
When from being greater than sphere width, sphere can be taken out out of valve chamber, remaining parts can also successively be taken out.
Cavity pressure is higher than 1.33 times of nominal pressure in the utility model, and middle cavity pressure is counter to push away valve seat, and compression pre-tightens bullet
Spring makes valve seat be detached from spherical surface and forms leakage path, so that cavity pressure is smoothly released to upstream line in guaranteeing；Along with upstream
Valve seat only has an one-way sealing property, therefore when lumen pressure anomaly increases, pressure release always super updrift side.
The utility model is additionally provided with packing seal structure, and the top of long-neck valve deck 10, filler is arranged in packing seal structure
Sealing structure is by lining ring 12, filler 13, filler 14, filler 15, filler spacer 16, hold-down grid 17 and 18 groups of gland
At；The filler 13 is connected with lining ring 12, and among filler, the hold-down grid 17 connects the filler spacer 16 with filler
Touching connection, the gland 18 are bolted with hold-down grid 17.
The packing seal structure need to also set spring energy-storage sealing in filler bottom when pressure is greater than Class 300
Circle, the purpose is to reach primary seal, has blocked contact of the medium with filler, further filler has been protected not receive cryogenic media
It influences, not only ensure that the sealing performance at packing seal, and also reduce valve opening and closing torque.
The utility model has the advantages that sealing performance is relatively reliable, the service life is longer, open and close torque is more low.
It is the basic principles and main features of the utility model above, without departing from the principle of this utility model,
The utility model also has various changes and improvements, these variations are both fallen with improvement to be required in the scope of the utility model.This reality
It is defined by the appending claims and its equivalent thereof with novel claimed range.
Claims (3)
1. a kind of ultralow temperature upper-mounting type ball valve, including valve body (1), upstream valve seat component (2), sphere (3), long-neck valve (10), on
Valve rod (24), lower valve rod (26), valve seat nut (2-1), spring base (2-2), valve seat insert (2-3), ultralow temperature one-way sealing
Spring energy-storage sealing ring (2-4), straight pin (2-5), upstream metal valve seat (2-6), thrust ring (2-7), inconel nickel wire graphite
Packing (2-8), cylindrical compression spring (2-9), downstream metal valve seat (25-1), ultralow temperature two way seal spring energy-storage sealing ring
(25-2), it is characterised in that the ultralow temperature one-way sealing spring energy-storage sealing ring (2-4) is mounted on upstream metal valve seat (2-
6) at small end outer circle, thrust ring (2-7) is packed into upstream metal valve seat (2-6) and seals close to ultralow temperature one-way sealing spring energy-storage
It encloses beside (2-4), straight pin (2-5) is sequentially inserted into thrust ring (2-7) and upstream metal valve seat (2-6), inconel nickel wire graphite
Packing (2-8) be mounted on upstream metal valve seat (2-6) setting groove in, on spring base (2-2) there are four protrusion U-shaped key with
4 U-type grooves fallen on upstream metal valve seat (2-6) are in mating connection, and cylindrical compression spring (2-9) is packed into spring base
In spring mounting hole set by (2-2), valve seat nut (2-1) uses the connection type of screw thread with upstream metal valve seat (2-6)
Connection.
2. ultralow temperature upper-mounting type ball valve according to claim 1, it is characterised in that the ultralow temperature two way seal spring stores
Energy sealing ring (25-2) is packed at downstream metal valve seat (25-1) small end outer circle, and there are four the U-shaped keys of protrusion on spring base (2-2)
In mating connection with 4 U-type grooves fallen on downstream metal valve seat (25-1), cylindrical compression spring (2-9) is packed into spring
In spring mounting hole set by seat (2-2), valve seat nut (2-1) uses the connection side of screw thread with downstream metal valve seat (25-1)
Formula connection；
The upper valve rod (24) is connect with sphere (3) by rectangular deep hole, and the torque for providing handle or executing agency is made
Valve rod (24) can be made to drive sphere (3) rotation when on upper valve rod (24)；Filler is provided at the top of the long-neck valve (10)
Sealing structure.
3. ultralow temperature upper-mounting type ball valve according to claim 2, it is characterised in that the valve seat nut (2-1) and upstream gold
Belong to valve seat (2-6) and downstream metal valve seat (25-1) is all made of threaded connection, valve seat nut (2-1) circumference is equipped with for dismounting work
The mounting groove of tool rotation valve seat nut (2-1)；
The packing seal structure is by lining ring (12), filler one (13), filler two (14), filler three (15), filler spacer
(16), hold-down grid (17) and gland (18) composition；The filler (13) and lining ring (12) connect, the filler
Spacer (16) is arranged among filler, and the hold-down grid (17) and filler connect, the gland (18) and filler
Pressing plate (17) is bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821061655.XU CN209115719U (en) | 2018-07-05 | 2018-07-05 | Ultralow temperature upper-mounting type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821061655.XU CN209115719U (en) | 2018-07-05 | 2018-07-05 | Ultralow temperature upper-mounting type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115719U true CN209115719U (en) | 2019-07-16 |
Family
ID=67195945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821061655.XU Active CN209115719U (en) | 2018-07-05 | 2018-07-05 | Ultralow temperature upper-mounting type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626428A (en) * | 2018-07-05 | 2018-10-09 | 杭州杭氧工装泵阀有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
-
2018
- 2018-07-05 CN CN201821061655.XU patent/CN209115719U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108626428A (en) * | 2018-07-05 | 2018-10-09 | 杭州杭氧工装泵阀有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |