CN205350425U - Automatic compensation low temperature ball valve - Google Patents
Automatic compensation low temperature ball valve Download PDFInfo
- Publication number
- CN205350425U CN205350425U CN201521083908.XU CN201521083908U CN205350425U CN 205350425 U CN205350425 U CN 205350425U CN 201521083908 U CN201521083908 U CN 201521083908U CN 205350425 U CN205350425 U CN 205350425U
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- valve
- valve body
- spheroid
- automatic compensation
- filler
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Abstract
The utility model discloses an automatic compensation low temperature ball valve, its characterized in that: including spheroid, the side valve body, the main valve body, valve rod and valve gap, the main valve body is personally experienced sth. Part of the body and valve cover connection with the side valve respectively, the valve rod is located inside the valve gap, the spheroid is located in the internal portion of main valve, the valve rod is connected with the spheroid, be provided with the packing seal device between valve gap and the valve rod, the packing seal device is including last filler and lower filler, that this automatic compensation low temperature ball valve maintains is convenient, sealing performance is reliable and can carry out automation and annotate fat and seal.
Description
Technical field
This utility model relates to one and automatically compensates cryogenic ball valve.
Background technology
Ball valve is widely used on the medium conveyance conduit of every profession and trade because of simple in construction, conveniently opening and closing, its structure includes valve body, valve seat, spheroid, valve rod, valve gap, handwheel, valve rod lower end is fixing with spheroid to be connected, and upper end is fixedly connected with the hand wheel, and is provided with stuffing seal between valve rod and valve gap.For the ball valve that cryogenic media operating mode uses, it is desirable to valve zero external leakage, the mode security incident in order to avoid cryogenic media leaks outside, so valve gap is generally adopted lengthening neck structure, to reduce the temperature impact on packing seal letter sealing property.But, in valve opening and closing process, the filler of packing seal letter is produced abrasion by the movement of valve rod, reduces the sealing property of packing seal letter, even occurs leaking outside.The shortcoming of this artificial greasing is to know when filler occurs that leakage needs to carry out greasing, and to being installed on the valve of field usage, artificial greasing is inconvenient, troublesome maintenance.It addition, spheroid and valve seat are generally adopted import and export double sealing structure, under valve-closed state, valve body lumen medium produces abnormal boosting, dangerous body strength because temperature raises, and valve body bursting accident even occurs.
Summary of the invention
The technical problems to be solved in the utility model be to provide a kind of easy to maintenance, sealing property reliable and can carry out automatic greasing sealing automatically compensate cryogenic ball valve.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
One compensates cryogenic ball valve automatically, includes spheroid, side valve body, main valve body, valve rod and valve gap, described main valve body is connected with side valve body and valve gap respectively, described valve rod is located at inside valve gap, described spheroid is located at inside main valve body, described valve rod is connected with spheroid, it is provided with stuffing seal between described valve gap and valve rod, described stuffing seal includes filler and lower filler, it is provided with vacuum ring between described upper filler and lower filler, described vacuum ring is connected with automatic greasing device, described automatic greasing device includes signal transducer and greasing electromagnetic valve, and described upper filler is provided with filler autocompensation installation, and described filler autocompensation installation includes material gland, hold-down grid and butterfly spring, described side valve body is provided with counterbalance spring, liner, ball serves as a contrast, secondary spring and auxiliary pad, described counterbalance spring, liner, ball lining is sequentially connected with, and described secondary spring is connected with auxiliary pad, described counterbalance spring, liner, ball serves as a contrast, secondary spring and auxiliary pad are provided with more than one.
As preferably, the diameter of described spheroid is 8-10cm.
As preferably, the length of described main valve body is 16-20cm.
As preferably, the width of described main valve body is 10-12cm.
As preferably, the length of described side valve body is 12-16cm.
As preferably, the width of described side valve body is 10-12cm.
As preferably, described spheroid is rustless steel spheroid, it is prevented that spheroid gets rusty so that it is more durable.
As preferably, described side valve body and main valve body inwall being provided with stainless steel layer, it is prevented that side valve body and main valve body get rusty so that it is more durable.
The beneficial effects of the utility model are: this compensates cryogenic ball valve automatically by vacuum ring, automatic greasing device, being equipped with of filler autocompensation installation, filler abrasion occurs automatically to carry out greasing sealing during leakage, make it have reliable sealing property, easy to maintenance；By being equipped with of counterbalance spring, liner, ball lining, secondary spring and auxiliary pad, ball lining on side valve body will be subjected to compensation for the balancing force of spring, when temperature is very low, ball lining on side valve body and the ball lining meeting contraction distortion on main valve body, the elastic deformation amount making self reduces, now balancing force will promote spheroid all to closely cooperate with ball lining, uses on cryogenic media pipeline thus meeting.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of automatic compensation cryogenic ball valve of this utility model.
Detailed description of the invention
As it is shown in figure 1, one compensates cryogenic ball valve automatically, include spheroid 3, side valve body 2, main valve body 1, valve rod 5 and valve gap 4, described main valve body 1 is connected with side valve body 2 and valve gap 4 respectively, it is internal that described valve rod 5 is located at valve gap 4, it is internal that described spheroid 3 is located at main valve body 1, described valve rod 5 is connected with spheroid 3, it is provided with stuffing seal 6 between described valve gap 4 and valve rod 5, described stuffing seal 6 includes filler 7 and lower filler 8, it is provided with vacuum ring 9 between described upper filler 7 and lower filler 8, described vacuum ring 9 is connected with automatic greasing device 10, described automatic greasing device 10 includes signal transducer 11 and greasing electromagnetic valve 12, and described upper filler 7 is provided with filler autocompensation installation 13, and described filler autocompensation installation 13 includes material gland 14, hold-down grid 16 and butterfly spring 15, described side valve body 2 is provided with counterbalance spring 17, liner 18, ball lining 19, secondary spring 21 and auxiliary pad 20, described counterbalance spring 17, liner 18, ball lining 19 is sequentially connected with, and described secondary spring 21 is connected with auxiliary pad 20, described counterbalance spring 17, liner 18, ball lining 19, secondary spring 21 and auxiliary pad 20 are provided with more than one.
The diameter of described spheroid 3 is 8-10cm.
The length of described main valve body 1 is 16-20cm.
The width of described main valve body 1 is 10-12cm.
The length of described side valve body 2 is 12-16cm.
The width of described side valve body 2 is 10-12cm.
Described spheroid 3 is rustless steel spheroid, it is prevented that spheroid 3 gets rusty so that it is more durable.
Described side valve body 2 and main valve body 1 inwall are provided with stainless steel layer (not shown), it is prevented that side valve body 2 and main valve body 1 get rusty so that it is more durable.
The beneficial effects of the utility model are: this compensates cryogenic ball valve automatically by vacuum ring, automatic greasing device, being equipped with of filler autocompensation installation, filler abrasion occurs automatically to carry out greasing sealing during leakage, make it have reliable sealing property, easy to maintenance；By being equipped with of counterbalance spring, liner, ball lining, secondary spring and auxiliary pad, ball lining on side valve body will be subjected to compensation for the balancing force of spring, when temperature is very low, ball lining on side valve body and the ball lining meeting contraction distortion on main valve body, the elastic deformation amount making self reduces, now balancing force will promote spheroid all to closely cooperate with ball lining, uses on cryogenic media pipeline thus meeting.
The above, be only detailed description of the invention of the present utility model, but protection domain of the present utility model be not limited thereto, any change expected without creative work or replacement, all should be encompassed within protection domain of the present utility model.
Claims (8)
1. an automatic compensation cryogenic ball valve, it is characterised in that: include spheroid, side valve body, main valve body, valve rod and valve gap, described main valve body is connected with side valve body and valve gap respectively, described valve rod is located at inside valve gap, described spheroid is located at inside main valve body, described valve rod is connected with spheroid, it is provided with stuffing seal between described valve gap and valve rod, described stuffing seal includes filler and lower filler, it is provided with vacuum ring between described upper filler and lower filler, described vacuum ring is connected with automatic greasing device, described automatic greasing device includes signal transducer and greasing electromagnetic valve, and described upper filler is provided with filler autocompensation installation, and described filler autocompensation installation includes material gland, hold-down grid and butterfly spring, described side valve body is provided with counterbalance spring, liner, ball serves as a contrast, secondary spring and auxiliary pad, described counterbalance spring, liner, ball lining is sequentially connected with, and described secondary spring is connected with auxiliary pad, described counterbalance spring, liner, ball serves as a contrast, secondary spring and auxiliary pad are provided with more than one.
2. automatic compensation cryogenic ball valve according to claim 1, it is characterised in that: the diameter of described spheroid is 8-10cm.
3. automatic compensation cryogenic ball valve according to claim 2, it is characterised in that: the length of described main valve body is 16-20cm.
4. automatic compensation cryogenic ball valve according to claim 3, it is characterised in that: the width of described main valve body is 10-12cm.
5. automatic compensation cryogenic ball valve according to claim 4, it is characterised in that: the length of described side valve body is 12-16cm.
6. automatic compensation cryogenic ball valve according to claim 5, it is characterised in that: the width of described side valve body is 10-12cm.
7. automatic compensation cryogenic ball valve according to claim 6, it is characterised in that: described spheroid is rustless steel spheroid.
8. automatic compensation cryogenic ball valve according to claim 7, it is characterised in that: described side valve body and main valve body inwall are provided with stainless steel layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083908.XU CN205350425U (en) | 2015-12-23 | 2015-12-23 | Automatic compensation low temperature ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083908.XU CN205350425U (en) | 2015-12-23 | 2015-12-23 | Automatic compensation low temperature ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350425U true CN205350425U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521083908.XU Active CN205350425U (en) | 2015-12-23 | 2015-12-23 | Automatic compensation low temperature ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205350425U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099180A (en) * | 2018-10-10 | 2018-12-28 | 张家港富瑞阀门有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
-
2015
- 2015-12-23 CN CN201521083908.XU patent/CN205350425U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099180A (en) * | 2018-10-10 | 2018-12-28 | 张家港富瑞阀门有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |