CN202903419U - Sealing device for RH refining furnace vacuum degree detection - Google Patents
Sealing device for RH refining furnace vacuum degree detection Download PDFInfo
- Publication number
- CN202903419U CN202903419U CN 201220603560 CN201220603560U CN202903419U CN 202903419 U CN202903419 U CN 202903419U CN 201220603560 CN201220603560 CN 201220603560 CN 201220603560 U CN201220603560 U CN 201220603560U CN 202903419 U CN202903419 U CN 202903419U
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- CN
- China
- Prior art keywords
- refining furnace
- furnace vacuum
- packoff
- cylinder
- sealing device
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- Expired - Fee Related
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Abstract
The utility model discloses a sealing device for RH refining furnace vacuum degree detection. The sealing device comprises a sealing assembly and a trolley; the sealing assembly comprises a sealing ring, a splint, a cylinder and a mounting bottom plate, wherein a round groove is opened on the splint; the sealing ring is embedded in the round groove of the splint; the splint is fixed on the piston rod of the cylinder; the cylinder is fixed on the mounting bottom plate; and the mounting bottom plate is placed on the trolley. The sealing device for RH refining furnace vacuum degree detection has the advantages that the structure is simple, the maintenance is simple, the sealing device is portable and practical, and the vacuum chamber can be sealed effectively.
Description
Technical field
The utility model relates to a kind of packoff technical field, particularly a kind of packoff for the detection of RH refining furnace vacuum tightness.
Background technology
The RH vacuum refining furnace is a kind of refining equipment that is mainly used in molten steel is carried out Fruit storage, and vacuum chamber is the key equipment that carries out in the application of vacuum operation, so its operating rate is very high.Use reaches certain stove number just must change vacuum chamber.After having changed vacuum chamber at every turn, all must carry out vacuum tightness to it and detect, see whether reach the setting requirement.
Existing detection method is: after the vacuum chamber replacing is complete, need handling one tank molten steel, the vacuum chamber Inserting Tube is inserted molten steel seal, then finish vacuum test.This mode is very large on the impact in serviceable life of Inserting Tube.In addition, this method of testing must satisfy a condition, and namely vacuum chamber must toast 6 hours, and indoor temperature just can be carried out after reaching requirement.In case find that in test vacuum tightness does not reach requirement, just must carry out vacuum leak inspection and leak source and process.And the temperature of vacuum chamber is very high at this moment, gives to check that processing leakage problem brings great difficulty.Caused the repair time prolongation, upset the allegro production model of steel mill, production has been caused larger impact.Vacuum measurement method under a kind of for these reasons cold condition is developed, and supporting packoff also arises at the historic moment with it.
The utility model content
Technical problem to be solved in the utility model provides a kind of device that can finish RH refining furnace vacuum chamber seal operation under normal temperature condition.
For solving the problems of the technologies described above, the utility model provides a kind of packoff for the detection of RH refining furnace vacuum tightness, comprising: seal assembly; Described seal assembly comprises: O-ring seal, cylinder and supporting plate; Circular groove is offered at described supporting plate center, and described O-ring seal embeds wherein; Described supporting plate is fixed on the piston rod end of described cylinder.
Further, described O-ring seal is o type circle.
Further, also comprise: mounting base, described cylinder bottom is fixed on the described mounting base.
Further, the quantity of described seal assembly is at least two.
Further, also comprise: chassis, described mounting base places on the described chassis.
The sealing device structure that is used for the detection of RH refining furnace vacuum tightness that the utility model provides is simple, operates light and is easy to and safeguard.Can under normal temperature environment, finish the sealing of RH refining furnace.Inserting Tube loss equipment life of having avoided that seal operation is brought in the classic method and to the adverse effect of production efficiency.
Description of drawings
The structural representation of the seal assembly that Fig. 1 provides for the utility model embodiment;
The o type circle that Fig. 2 provides for the utility model embodiment and the mounting structure synoptic diagram of supporting plate;
The operation chart of the RH refining furnace vacuum measurement packoff that Fig. 3 provides for the utility model embodiment;
Wherein, 1-o type circle, 2-supporting plate, 3-cylinder piston rod, 4-cylinder barrel, 5-mounting base, 6-seal assembly, 7-chassis, 8-Inserting Tube, 9-vacuum chamber.
Embodiment
Referring to Fig. 1, Fig. 2, the structural representation of the utility model embodiment provides a kind of packoff that detects for RH refining furnace vacuum tightness.Packoff comprises: o type circle 1, supporting plate 2, cylinder piston rod 3, cylinder barrel 4 and mounting base 5.Wherein, the one side of supporting plate 2 is offered o type groove and o type circle 1 is complementary to guarantee that it can embed.The another side of supporting plate 2 is fixed on the end of cylinder piston rod 3.Cylinder barrel 4 bottoms are fixed on the mounting base 5.
O type circle 1 is mainly used in this device is connected part with refining furnace sealing as O-ring seal, and it all is suitable for for static or dynamic sealed environment, can play well sealing effectiveness.Supporting plate 2 can compress o type circle as the carrier of o type circle.The power section of this device realizes that part is cylinder, and its funtion part mainly comprises: cylinder piston rod 3 and cylinder barrel 4; Cylinder piston rod 3 supports supporting plate 2, provides support and defeats tight o type circle; Cylinder barrel 4 is fixed on the mounting base 5 base as whole device.In addition, cylinder barrel 4 external compressed air pipelines stretch out by pressurized air pushing piston bar 3 as power source, and thrust is passed to supporting plate 2 press seal circles 1, to finish the sealing to vacuum chamber Inserting Tube 8 mouth of pipe positions.
Referring to Fig. 3, it all is to finish by supporting chassis 7 that the scene of this device is used generally, and packoff is placed on the chassis 7 dirigibility with intensifier, convenient operation.Mobile trolley used 7 belows to refining furnace vacuum chamber 9 make the position of seal assembly 6 substantially aim at Inserting Tube 8 when will carry out the detection of RH refining furnace vacuum tightness; Regulate the operator's console of chassis 7 to suitable height, and guarantee the o type circle 1 and Inserting Tube 8 accurate contrapositions on supporting plate 2 and top thereof in conjunction with the fine setting of horizontal direction.Make the o type circle 1 on supporting plate 2 and top thereof firmly be pressed on the bottom of Inserting Tube 8 with Inserting Tube 8 applyings and with it by reversal valve promotion cylinder piston rod 3 risings of handling on the compressed air piping afterwards, thereby finish under the normal temperature environment, the sealing of vacuum chamber provides the basis for ensuing cold conditions detects vacuum tightness.In case the undesirable situation of vacuum tightness occurs, can under the cold conditions environment, search immediately leakage point and also process rapidly.
The utility model relates to a kind of packoff of cold conditions measurement of vacuum method, by the form of molten steel sealing, this mode is more simple and practical in the sealing means of classic method, and maintenance cost is also low; In addition, also minimum for the damage of equipment, special, avoided the damage of molten steel to Inserting Tube 8, thus the life-span of having improved to a certain extent equipment reduced the frequency of maintenance of equipment, also objectively promoted production efficiency.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to example the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1. one kind is used for the packoff that RH refining furnace vacuum tightness detects, and comprising: seal assembly; It is characterized in that described seal assembly comprises: O-ring seal, cylinder and supporting plate;
Circular groove is offered at described supporting plate center, and described O-ring seal embeds wherein; Described supporting plate is fixed on the piston rod end of described cylinder.
2. the packoff that detects for RH refining furnace vacuum tightness as claimed in claim 1, it is characterized in that: described O-ring seal is o type circle.
3. the packoff for the detection of RH refining furnace vacuum tightness as claimed in claim 1 is characterized in that also comprise: mounting base, described cylinder bottom is fixed on the described mounting base.
4. the packoff that detects for RH refining furnace vacuum tightness as claimed in claim 1, it is characterized in that: the quantity of described seal assembly is at least two.
5. the packoff for the detection of RH refining furnace vacuum tightness as claimed in claim 3 is characterized in that also comprise: chassis, described mounting base places on the described chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603560 CN202903419U (en) | 2012-11-15 | 2012-11-15 | Sealing device for RH refining furnace vacuum degree detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603560 CN202903419U (en) | 2012-11-15 | 2012-11-15 | Sealing device for RH refining furnace vacuum degree detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903419U true CN202903419U (en) | 2013-04-24 |
Family
ID=48124078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220603560 Expired - Fee Related CN202903419U (en) | 2012-11-15 | 2012-11-15 | Sealing device for RH refining furnace vacuum degree detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903419U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712816A (en) * | 2013-12-25 | 2014-04-09 | 马钢(集团)控股有限公司 | System checking method for substandard RH furnace vacuum degree |
| CN106838334A (en) * | 2017-03-21 | 2017-06-13 | 常德烟草机械有限责任公司 | A kind of pneumatic sealing device and its encapsulating method |
| CN110306010A (en) * | 2019-07-22 | 2019-10-08 | 唐山不锈钢有限责任公司 | RH refining furnace all fronts vacuum measurement system |
-
2012
- 2012-11-15 CN CN 201220603560 patent/CN202903419U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712816A (en) * | 2013-12-25 | 2014-04-09 | 马钢(集团)控股有限公司 | System checking method for substandard RH furnace vacuum degree |
| CN103712816B (en) * | 2013-12-25 | 2016-01-20 | 马钢(集团)控股有限公司 | The systemic checking method that a kind of RH stove vacuum tightness is not up to standard |
| CN106838334A (en) * | 2017-03-21 | 2017-06-13 | 常德烟草机械有限责任公司 | A kind of pneumatic sealing device and its encapsulating method |
| CN106838334B (en) * | 2017-03-21 | 2018-06-15 | 常德烟草机械有限责任公司 | A kind of pneumatic sealing device and its encapsulating method |
| CN110306010A (en) * | 2019-07-22 | 2019-10-08 | 唐山不锈钢有限责任公司 | RH refining furnace all fronts vacuum measurement system |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20171115 |