CN204300500U - A kind of thermosensitive filler sealed valve - Google Patents
A kind of thermosensitive filler sealed valve Download PDFInfo
- Publication number
- CN204300500U CN204300500U CN201420762924.0U CN201420762924U CN204300500U CN 204300500 U CN204300500 U CN 204300500U CN 201420762924 U CN201420762924 U CN 201420762924U CN 204300500 U CN204300500 U CN 204300500U
- Authority
- CN
- China
- Prior art keywords
- valve
- thermosensitive
- described valve
- packing ring
- thermosensitive filler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A kind of thermosensitive filler sealed valve of the utility model, its main technical schemes is: it comprises valve body, be positioned at valve gap above described valve body, be positioned at the valve rod of described valve inner, the flap being located at described valve rod bottom and the gland be positioned at above described valve gap perpendicular through described valve gap, thermosensitive filler assembly is provided with in the chamber that described valve gap and gland are formed, described thermosensitive filler assembly comprises packing ring, and temperature-sensitive element spaced with described packing ring.The utility model has following beneficial effect: the utility model structure is simple, good seal performance, high temperature resistant, high pressure, and temperature-sensitive element can be reused, and only need change packing ring during valve maintenance.Compared with sealing with common asbestos packing, not only greatly reduce leakage phenomenon, and alleviate the maintenance work of valve.
Description
Technical field
The utility model relates to valve technology field, is specifically related to a kind of thermosensitive filler sealed valve.
Background technology
More than diameter 100mm various valve in oil pipeline heated pump station is a lot, and what the valve stem seal of these valves used is all asbestos packing, i.e. soft packing seal.In order to prevent medium from leaking from packing, there is the valve of 90% to need to carry out anti-drain process to its packing seal every year, wherein having at least valve over half to need all to change filler, have the valve of 1/3rd to need to augment filler.This increases the maintenance work amount of valve to a certain extent, particularly when changing packing filling, is difficult to clean out in stuffing box, causes filler to extrude uneven appearance and leaks, cause the phenomenon of doing over again often to occur thus.The valve of some transferring oil, aqueous medium, needs repeatedly fastening or supplement filler in 1 year.With regard to gate valve, when allowing switching flow not affect production, replacing or the supplement of filler can be carried out by valve-off, and for stop valve, also to consider whether the port of export has pressure medium, if there is pressure medium to exist, the replacing of filler, supplement work can not be carried out.The in running order valve having high-pressure medium to pass through also has certain danger when fastening packing, once filler unbalance stress, medium will spray.
Summary of the invention
The purpose of this utility model is to provide the thermosensitive filler sealed valve that a kind of structure is simple, high temperature resistant, high pressure resistant, leakage phenomenon is few.
In order to solve the problem existing for background technology, the utility model is by the following technical solutions: a kind of thermosensitive filler sealed valve, comprise valve body 1, be positioned at valve gap 3 above described valve body 1, be positioned at the valve rod 6 of described valve body 1 inside, the flap 2 being located at described valve rod 6 bottom and the gland 5 be positioned at above described valve gap 3 perpendicular through described valve gap 3, thermosensitive filler assembly 4 is provided with in the chamber that described valve gap 3 and gland 5 are formed, described thermosensitive filler assembly 4 comprises packing ring 401, and temperature-sensitive element 402 spaced with described packing ring 401.
Further, described thermosensitive filler assembly 4 is applicable to gate valve, stop valve, ball valve or diaphragm valve.
Further, described temperature-sensitive element 402 adopts fusible alloy, temperature-sensitive insulating materials, bimetal leaf, thermocouple, thermistor or semi-conducting material to make.
The utility model has following beneficial effect: the utility model structure is simple, good seal performance, high temperature resistant, high pressure, and temperature-sensitive element can be reused, and only need change packing ring during valve maintenance.Compared with sealing with common asbestos packing, not only greatly reduce leakage phenomenon, and alleviate the maintenance work of valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that local of the present utility model sends out figure large.
With reference to accompanying drawing 1,2 description of symbols: valve body 1, flap 2, valve gap 3, thermosensitive filler assembly 4, gland 5, valve rod 6, packing ring 401, temperature-sensitive element 402.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in more detail.
A kind of thermosensitive filler sealed valve of the utility model, comprise valve body 1, be positioned at valve gap 3 above described valve body 1, be positioned at the valve rod 6 of described valve body 1 inside, the flap 2 being located at described valve rod 6 bottom and the gland 5 be positioned at above described valve gap 3 perpendicular through described valve gap 3, thermosensitive filler assembly 4 is provided with in the chamber that described valve gap 3 and gland 5 are formed, described thermosensitive filler assembly 4 comprises packing ring 401, and temperature-sensitive element 402 spaced with described packing ring 401.By packing ring 401 described in the distortion automatic impaction of described temperature-sensitive element 402 in the use procedure of valve, compensate plastic deformation and the thrust decay of described packing ring 401, make described thermosensitive filler assembly 4 be in sealing state in the whole use procedure of valve.When there being thermal medium by valve, the axial deformation of described temperature-sensitive element 402 suffers restraints and produces axial thrust, and raise axial thrust increase with temperature, compensate for the exhaustion of axial pressing force, thrust is made to be tending towards linear in the distribution of axis, prevent filler to relax, therefore can effectively stop gland sealed to leak.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. a thermosensitive filler sealed valve, comprise valve body (1), be positioned at the valve gap (3) of described valve body (1) top, the inner valve rod (6) of described valve body (1) is positioned at perpendicular through described valve gap (3), be located at the flap (2) of described valve rod (6) bottom and be positioned at the gland (5) of described valve gap (3) top, it is characterized in that, thermosensitive filler assembly (4) is provided with in the chamber that described valve gap (3) and gland (5) are formed, described thermosensitive filler assembly (4) comprises packing ring (401), and with described packing ring (401) spaced temperature-sensitive element (402).
2. a kind of thermosensitive filler sealed valve according to claim 1, is characterized in that, described thermosensitive filler assembly (4) is applicable to gate valve, stop valve, ball valve or diaphragm valve.
3. a kind of thermosensitive filler sealed valve according to claim 1, is characterized in that, described temperature-sensitive element (402) adopts fusible alloy, temperature-sensitive insulating materials, bimetal leaf, thermocouple, thermistor or semi-conducting material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762924.0U CN204300500U (en) | 2014-12-08 | 2014-12-08 | A kind of thermosensitive filler sealed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420762924.0U CN204300500U (en) | 2014-12-08 | 2014-12-08 | A kind of thermosensitive filler sealed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204300500U true CN204300500U (en) | 2015-04-29 |
Family
ID=53106041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420762924.0U Expired - Fee Related CN204300500U (en) | 2014-12-08 | 2014-12-08 | A kind of thermosensitive filler sealed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204300500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455700A (en) * | 2014-12-08 | 2015-03-25 | 江苏明江阀业有限公司 | Thermosensitive packing seal valve |
-
2014
- 2014-12-08 CN CN201420762924.0U patent/CN204300500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455700A (en) * | 2014-12-08 | 2015-03-25 | 江苏明江阀业有限公司 | Thermosensitive packing seal valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20211208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |