CN201241171Y - Novel seal ring of RH vacuum furnace - Google Patents
Novel seal ring of RH vacuum furnace Download PDFInfo
- Publication number
- CN201241171Y CN201241171Y CNU2008201902008U CN200820190200U CN201241171Y CN 201241171 Y CN201241171 Y CN 201241171Y CN U2008201902008 U CNU2008201902008 U CN U2008201902008U CN 200820190200 U CN200820190200 U CN 200820190200U CN 201241171 Y CN201241171 Y CN 201241171Y
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- CN
- China
- Prior art keywords
- sealing ring
- coil pipe
- vacuum
- utility
- flanges
- 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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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model relates to a Novel sealing ring used at the top part and the middle part of an RH vacuum furnace, overcoming the defects existing in the current device that high requirements on flanges at the middle part and the top part of the vacuum chamber easily cause untight press and air leakage of the sealing ring, and the degree of vacuum can not meet the production requirements; and the sealant tube has poor resistance to high temperature, is easy to be burnt and leak air, and can only be used once. The utility model takes the technical measures that: the Novel sealing ring of the RH vacuum furnace comprises a coil pipe 1, and is characterized in that: the coil pipe 1 is a rectangular tube made from graphite material, and the coil pipe 1 is solid. Compared with the prior art, the utility model has advantages that: the resistance to high temperature is good, the high temperature aging phenomenon will not occur, meanwhile, the pressure resistance is strong, and the local damage phenomenon will not take place; and because the cross-sectional area of the rectangular tube is larger than the area of section of a round one, the friction force between flanges of the vacuum chamber is increased, the air leakage problem caused by pumping of sealing material between the flanges into the vacuum chamber under the atmospheric negative pressure can be prevented, the sealing ring can also be used repeatedly, and costs are reduced.
Description
Technical field
The utility model relates to sealing-ring, more belongs to the top of RH vacuum oven and the novel seal circle that the middle part is used.
Background technology
The RH vacuum oven is to be used for liquid steel degassing purified visual plant, and supporting with it sealing-ring is one of key equipment, and the quality of its airtight quality directly has influence on RH liquid steel degassing effect, and then influence steel-making ordinary production.The Seal Design at tradition RH vacuum oven middle part and top adopts the circular seal sebific duct, and there is following shortcoming in it:
1, vacuum chamber middle part and top flange being required height, differs in flange injustice or gap, all can cause sealing-ring to press tight, gas leakage, causes vacuum tightness not satisfy production requirement.
2, the sealed rubber pipe resistance to elevated temperatures is poor, burns run-down gas easily, can only disposablely use.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of good seal performance, high temperature resistant, to vacuum oven middle part novel seal circle with loose, the reusable RH vacuum oven of top flange installation requirement.
Realize the technical measures of above-mentioned purpose:
The novel seal circle of RH vacuum oven is made up of coil pipe, and it is: coil pipe is the rectangular tube of graphite material, coil pipe and be entity.
The utility model compared with prior art, resistance to elevated temperatures is good, can not produce the high temperature ageing phenomenon, simultaneously anti-pressure ability is strong, the local damage phenomenon can not occur; Because the cross-sectional area of its rectangular tube is bigger than circular sectional area, thus increased and the vacuum chamber flange between frictional force, prevent that sealing material is subjected to cause in the atmosphere negative pressure suction vacuum chamber gas leakage between flange; Because square diameter is bigger slightly than vacuum chamber vault and middle part normal clearance, guarantee to have when vacuum chamber is depressed the limit draught of 5～7mm again, can guarantee that like this sealing-ring sealing is intact.
Description of drawings
Fig. 1 is the cross section structure synoptic diagram of the novel seal circle of RH vacuum oven
Embodiment
Be described in detail in conjunction with the accompanying drawings:
The novel seal circle of RH vacuum oven is made up of coil pipe 1.It is: the material of coil pipe 1 is a graphite material, is processed into the rectangular tube of entity with this graphite material, and the square coil pipe 1 of entity with ink material is coiled into the required sealing-ring of RH vacuum oven then, places RH vacuum oven desired area.
Claims (1)
1, the novel seal circle of RH vacuum oven is made up of coil pipe (1), it is characterized in that: coil pipe (1) is the rectangular tube of graphite material, coil pipe (1) and be entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201902008U CN201241171Y (en) | 2008-08-12 | 2008-08-12 | Novel seal ring of RH vacuum furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201902008U CN201241171Y (en) | 2008-08-12 | 2008-08-12 | Novel seal ring of RH vacuum furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201241171Y true CN201241171Y (en) | 2009-05-20 |
Family
ID=40714466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201902008U Expired - Fee Related CN201241171Y (en) | 2008-08-12 | 2008-08-12 | Novel seal ring of RH vacuum furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201241171Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875999B (en) * | 2009-12-25 | 2012-10-03 | 中冶南方工程技术有限公司 | Vacuum pipeline sealing device for double-station RH system |
-
2008
- 2008-08-12 CN CNU2008201902008U patent/CN201241171Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875999B (en) * | 2009-12-25 | 2012-10-03 | 中冶南方工程技术有限公司 | Vacuum pipeline sealing device for double-station RH system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Wuhan Hanwei Secondary Refining Engineering Co., Ltd. Assignor: Wuhan Iron & Steel (Group) Corp. Contract record no.: 2011420000188 Denomination of utility model: Novel seal ring of RH vacuum furnace Granted publication date: 20090520 License type: Exclusive License Record date: 20110725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20150812 |
|
| EXPY | Termination of patent right or utility model |