CN202733150U - Low-dissipation packing loss self-compensating system - Google Patents
Low-dissipation packing loss self-compensating system Download PDFInfo
- Publication number
- CN202733150U CN202733150U CN 201220332394 CN201220332394U CN202733150U CN 202733150 U CN202733150 U CN 202733150U CN 201220332394 CN201220332394 CN 201220332394 CN 201220332394 U CN201220332394 U CN 201220332394U CN 202733150 U CN202733150 U CN 202733150U
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- hold
- group
- filler
- packing
- loss
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Abstract
The utility model discloses a low-dissipation packing loss self-compensating system which comprises a valve rod and a valve cover. A packing group is installed between the valve rod and the valve cover; an internal compensating spring group is arranged at the bottom of the packing group and/or the middle of the packing group; a packing pressing sleeve is arranged at the upper end of the packing group; a packing pressing plate is pressed on the packing pressing sleeve; the lower end of a hold-down bolt is fixedly connected with the valve cover; and the upper end of the hold-down bolt is pressed on a hold-down nut at the upper end of the packing pressing plate. The system has a reasonable structure, and utilizes the axial force produced by the spring group to cause radial expansion deformation of the combined packing so as to realize seal, as a result, when the packing is subject to loss, the combined effect of spring force and medium pressure has the pressure self tightening function to the packing all the time, with the function direction identical with the loss trend direction, and the sealing effect is guaranteed. The internal and external compensating structure of the system can also realize the function of packing loss display.
Description
Technical field
The utility model relates to a kind of low loss filler loss self-compensating system.
Background technique
The live loaded of existing valve stem packing generally adopts the outside dish spring on the hold-down grid to load, without interior pressure self-tightening compensate function and filler loss Presentation Function.
The model utility content
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and guarantees the low loss filler loss self-compensating system of sealing effect.
Technical solution of the present utility model is:
A kind of low loss filler loss self-compensating system, comprise valve rod, valve gap, it is characterized in that: filling material group between valve rod and valve gap, the centre of the bottom of filler group and/or filler group arranges interior counterbalance spring group, filler group upper end arranges filler pressing sleeve, press-fit hold-down grid on the filler pressing sleeve, lower end and the valve gap of hold-down bolt are connected, and the upper end dress of hold-down bolt is pressed in the gland nut of hold-down grid upper end.
The filler group is two groups of wedge type combined packings, in the lower end of two groups of wedge type combined packings the first cluster spring is set, the second cluster spring is set between two groups of wedge type combined packings, counterbalance spring group in first, second cluster spring forms is arranging rigidity greater than the external compensation cluster spring of interior counterbalance spring group rigidity on the hold-down grid or between hold-down grid and the filler pressing sleeve.
Rigidity is being set greater than the external compensation cluster spring of interior counterbalance spring group rigidity on the hold-down grid or between hold-down grid and the filler pressing sleeve, pressing plate extension bar and hold-down grid are connected, indicator fixing frame one end is installed on the hold-down bolt, the other end of indicator fixing frame arranges displacement transducer, displacement transducer has two up and down, is separately positioned on the up and down both sides of pressing plate extension bar.
The utility model is rational in infrastructure, axial force with the cluster spring generation, make combined packing produce the radial expansion distortion and realize sealing, when the filler loss, spring force and pressure medium cooperative action produce the effect of self-fastening pressure all the time to filler, its action direction is consistent with consume trend direction, has guaranteed sealing effect.The inside and outside collocation structure of the utility model also can be realized filler loss Presentation Function.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an embodiment's of the utility model structural representation;
Fig. 2 is the utility model embodiment 2 structural representation.
Fig. 3 is embodiment 3 structural representation.
Fig. 4 is embodiment 4 structural representation.
Embodiment
Embodiment 1:
A kind of low loss filler loss self-compensating system, comprise valve rod 1, valve gap 2, filling material group (V-type filler group or wedge shape filler group) 4 between valve rod and valve gap, the bottom of filler group arranges interior counterbalance spring group (disk spring group) 3, between filler group and interior counterbalance spring group (disk spring group), Packing seat 5 is set also, filler group upper end arranges filler pressing sleeve 6, press-fit hold-down grid 7 on the filler pressing sleeve, lower end and the valve gap of hold-down bolt 8 are connected, and the upper end dress of hold-down bolt is pressed in the gland nut 9 of hold-down grid upper end.Be arranged in addition the sealing seat 10 of interior counterbalance spring group below among the figure.Fig. 1 left side represents that original state disk spring group 3 is driven plain.Fig. 1 right-hand part represents to work as filler in using process generation loss (breakage D), and disk spring group 3 is followed compensation, and the filler group realizes sealing under spring force and pressure medium cooperative action.
Embodiment 2:
Interior counterbalance spring group adopts the cylindrical spring group 12 that is loaded in the spring seat 11, and all the other are with embodiment 1.
Embodiment 3:
A kind of low loss filler loss self-compensating system, comprise valve rod 1b, valve gap 2b, filling material group 4b between valve rod and valve gap, filler group upper end arranges filler pressing sleeve 6b, press-fit hold-down grid 7b on the filler pressing sleeve, lower end and the valve gap of hold-down bolt are connected, and the upper end dress of hold-down bolt 8b is pressed in the gland nut 9b of hold-down grid upper end.The filler group is two groups of wedge type combined packings, the first cluster spring 3b is set in the lower end of two groups of wedge type combined packings, the second cluster spring 3c is set between two groups of wedge type combined packings, counterbalance spring group in first, second cluster spring forms is arranging rigidity greater than the external compensation cluster spring 13 of interior counterbalance spring group rigidity between (or hold-down grid and filler pressing sleeve) on the hold-down grid 7b.Between filler group and interior counterbalance spring group, Packing seat 5b is set also.Be arranged in addition the sealing seat 10b of the first cluster spring 3b below among the figure.Can realize the second compensation that carries out the internal compensation loss after the loss of first external compensation filler having improved the gland sealed reliability.
Embodiment 4:
A kind of low loss filler loss self-compensating system, comprise valve rod 1a, valve gap, dress V-type filler group 4a between valve rod and valve gap, the bottom of V-type filler group arranges interior counterbalance spring group (cylindrical spring group) 12a, V-type filler group upper end arranges filler pressing sleeve, press-fit hold-down grid 7a on the filler pressing sleeve, the lower end of hold-down bolt 8a and valve gap 2a are connected, and the upper end dress of hold-down bolt is pressed in the gland nut of hold-down grid upper end.
External compensation cluster spring (the dish spring group) 13a of rigidity greater than interior counterbalance spring group rigidity is being set on the hold-down grid or between hold-down grid and the filler pressing sleeve, pressing plate extension bar 15 is connected with hold-down grid 7a, indicator fixing frame 14 1 ends are installed on the hold-down bolt 8a, the other end of indicator fixing frame arranges displacement transducer 16, displacement transducer has two up and down, is separately positioned on the up and down both sides of pressing plate extension bar.
Fig. 4 valve rod axis left part represents initial impaction state, Fig. 4 valve rod axis right part represents the state of (breakage D) after the V-type filler group 4a loss, displacement transducer 16 can detect the loss situation of filler at any time, when outside dish spring group 13a is in full compensating coefficient, be that filler is in wear limit one time, the lower cylindrical spring group of inner rigidity is carried out secondary and is loaded compensation, makes the V-type filler realize the sealing of function admirable under the synergy of spring force and medium power.
Claims (3)
1. one kind low loss filler loss self-compensating system, comprise valve rod, valve gap, it is characterized in that: filling material group between valve rod and valve gap, the centre of the bottom of filler group and/or filler group arranges interior counterbalance spring group, filler group upper end arranges filler pressing sleeve, press-fit hold-down grid on the filler pressing sleeve, lower end and the valve gap of hold-down bolt are connected, and the upper end dress of hold-down bolt is pressed in the gland nut of hold-down grid upper end.
2. low loss filler loss self-compensating system according to claim 1, it is characterized in that: the filler group is two groups of wedge type combined packings, in the lower end of two groups of wedge type combined packings the first cluster spring is set, the second cluster spring is set between two groups of wedge type combined packings, counterbalance spring group in first, second cluster spring forms is arranging rigidity greater than the external compensation cluster spring of interior counterbalance spring group rigidity on the hold-down grid or between hold-down grid and the filler pressing sleeve.
3. low loss filler loss self-compensating system according to claim 1, it is characterized in that: rigidity is being set greater than the external compensation cluster spring of interior counterbalance spring group rigidity on the hold-down grid or between hold-down grid and the filler pressing sleeve, pressing plate extension bar and hold-down grid are connected, indicator fixing frame one end is installed on the hold-down bolt, the other end of indicator fixing frame arranges displacement transducer, displacement transducer has two up and down, is separately positioned on the up and down both sides of pressing plate extension bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332394 CN202733150U (en) | 2012-07-11 | 2012-07-11 | Low-dissipation packing loss self-compensating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220332394 CN202733150U (en) | 2012-07-11 | 2012-07-11 | Low-dissipation packing loss self-compensating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202733150U true CN202733150U (en) | 2013-02-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220332394 Withdrawn - After Issue CN202733150U (en) | 2012-07-11 | 2012-07-11 | Low-dissipation packing loss self-compensating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202733150U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758964A (en) * | 2012-07-11 | 2012-10-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN106402477A (en) * | 2016-11-26 | 2017-02-15 | 江苏新思维信息系统工程有限公司 | Valve packing seal device |
| CN109854754A (en) * | 2019-01-23 | 2019-06-07 | 常德翔宇设备制造有限公司 | A kind of guide type valve |
-
2012
- 2012-07-11 CN CN 201220332394 patent/CN202733150U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758964A (en) * | 2012-07-11 | 2012-10-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN102758964B (en) * | 2012-07-11 | 2013-07-31 | 南通高中压阀门有限公司 | Low-loss self-compensating system for filler loss |
| CN106402477A (en) * | 2016-11-26 | 2017-02-15 | 江苏新思维信息系统工程有限公司 | Valve packing seal device |
| CN109854754A (en) * | 2019-01-23 | 2019-06-07 | 常德翔宇设备制造有限公司 | A kind of guide type valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20130731 |
|
| RGAV | Abandon patent right to avoid regrant |