CN2370014Y - Floating seal device for valve rod of hot air valve - Google Patents
Floating seal device for valve rod of hot air valve Download PDFInfo
- Publication number
- CN2370014Y CN2370014Y CN 99237149 CN99237149U CN2370014Y CN 2370014 Y CN2370014 Y CN 2370014Y CN 99237149 CN99237149 CN 99237149 CN 99237149 U CN99237149 U CN 99237149U CN 2370014 Y CN2370014 Y CN 2370014Y
- Authority
- CN
- China
- Prior art keywords
- ring
- oil
- valve
- hot blast
- valve rod
- 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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- Details Of Valves (AREA)
- Sealing Devices (AREA)
Abstract
The utility model relates to a valve rod floating sealing device for a hot wind valve used for blast furnace smelting, which comprises a packing box, sealing filling material and a press cover, wherein, the lower part of the packing box is orderly provided with a sealing ring, an oil ring, a floating sealing ring and an annular sleeve; the sealing ring, the oil ring, the floating sealing ring and the annular sleeve are arranged in a packing box seat and are loaded in a valve cover hole of a hot wind valve. The floating sealing ring is formed by that a plurality of adjacent rings are butted and coupled to an annular spring at the outer ring, and then the floating sealing ring can be arranged in the annular sleeve. The inner and the outer cylindrical surfaces of the oil ring are provided with annular oil grooves connected with through holes, an outer annular oil groove of the oil ring is communicated with oil holes of the packing box seat and is communicated with a pressing pouring oil cup on an outer flange of the packing box seat. The utility model has the advantages of compact structure, tight sealing, convenient lubrication, small friction force, good sealing performance, prolonged service life for the hot wind valve, no leakage phenomenon within 3 to 5 years, and maintenance free.
Description
The utility model relates to the employed hot blast valve valve rod of a kind of blast-furnace smelting floating seal.
Hot blast valve is the essential equipment in the blast-furnace smelting, it is the hot blast by-pass valve control between blast furnace and the hotblast stove, on air, hot blast valve is opened, all warm airs (1100 ℃～1300 ℃, 0.3～0.5Mpa) process hot blast valve is sent to blast furnace, in the Combustion of Hot Air Furnace phase, hot blast valve cuts out, and hot blast valve is bearing very big thermal load towards a side of hotblast stove.Because hot blast valve often opens and closes, valve rod and the relative movement of valve gap mating holes are frequent, and this valve working medium is high temperature, high pressure gas in addition, and its sealing property has just become to weigh one of important indicator of hot blast valve quality.For a long time, the sealing at two valve rod hole places on the hot air valve cover, always by adding refractory fibre rope filler in the stuffing box, the way that compresses with gland seals again, and the sealing device is provided with simple and crude, poor reliability, in the use every 2～3 months valve gaps and two valve rod mating holes places serious the leakage just appears, be forced to damping down maintenance, not only time-consuming, also having a strong impact on natural labor, the stable yields of blast furnace.
The purpose of this utility model is that a kind of follow-on hot blast valve valve rod floating seal will be provided, and can improve the sealing property of hot blast valve valve rod sealing device effectively, the leakage when avoiding the valve rod lifting, thus prolong the Hot-blast valve life-span.
Hot blast valve valve rod floating seal comprises stuffing box, lock packing and gland, sets gradually wear ring, oil ring, fluctuate hermetical ring, annular cover in the stuffing box bottom, places in the filler cassette holder hot air valve cover hole of packing in the lump.Between filler cassette holder and the two bottom surface, hot air valve cover hole gasket is set.
The fluctuate hermetical ring of this device is to be formed by the number lobes adjacent outer circle garter-type spring of ring lock ring, after pack in the annular cover.Annular cover outer cylinder surface is inlayed O RunddichtringO and the sealing of filler cassette holder inner periphery.
Oil ring inside and outside circle cylinder is established annular oil groove, has through hole to link to each other.Oil ring outer ring oil groove is communicated with filler cassette holder oilhole, and connects the forced filling oil cup on the filler cassette holder outward flange.
The external cylindrical surface of wear ring and upper surface are all inlayed the O RunddichtringO, go to the bottom with filler cassette holder inner cylinder face and stuffing box respectively and seal.
This hot blast valve valve rod floating seal compact construction, sealing is tight, and lubricated easy, frictional force is little, favorable sealing property, thus prolonged Hot-blast valve work-ing life, can keep valve not leak in 3～5 years, avoid safeguarding.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model fluctuate hermetical ring structural representation
Introduce embodiment of the present utility model below in conjunction with accompanying drawing:
The sealing device comprises stuffing box (4), and interior dress Yx type teflin ring (3), and refractory fibre rope lock packing (2) adds fastening gland (1).Set gradually wear ring (5), oil ring (6), fluctuate hermetical ring (7), annular cover (8) in stuffing box (4) bottom, place in the lump in the filler cassette holder (9), reinstall hot air valve cover (11) hole, between the two bottom surface, sealing felt pan (10) is set between filler cassette holder (9) bottom surface and valve gap (11) bottom surface, hole promptly.And stuffing box (4) is fastened on the valve gap (11).
Fluctuate hermetical ring (7) is formed by the outer circle garter-type spring of the adjacent ring of three lobes lock ring, in the annular cover (8) of packing into.Annular cover (8) outer cylinder surface sealing groove is inlaid with the O RunddichtringO and filler cassette holder (9) inner periphery constitutes sealing.
Oil ring (6) inside and outside circle cylinder is established annular oil groove, has radial direction through hole to be communicated with.Oil ring (6) outer ring oil groove is communicated with filler cassette holder (9) oilhole, on filler cassette holder (9) outward flange forced filling oil cup is set, and connects the interior oilhole of filler cassette holder (9).
The external cylindrical surface and the upper surface sealing groove of wear ring (5) all are inlaid with the O RunddichtringO, respectively with filler cassette holder (9) inner cylinder face and the sealing of stuffing box (4) bottom surface.
Fluctuate hermetical ring (7), annular cover (8), oil ring (6) and wear ring (5) all can adopt the manufacturing of 1Cr18Ni9 stainless steel.Set O RunddichtringO can adopt the neoprene packing circle in the device.
Claims (11)
1. the employed hot blast valve valve rod of blast-furnace smelting floating seal, comprise stuffing box, lock packing and gland, it is characterized in that, set gradually wear ring, oil ring, fluctuate hermetical ring, annular cover in the stuffing box bottom, place in the filler cassette holder hot air valve cover hole of packing into.
2. hot blast valve valve rod floating seal according to claim 1 is characterized in that, fluctuate hermetical ring is to be formed by the number lobes adjacent outer circle garter-type spring of ring lock ring, after pack in the annular cover.
3. hot blast valve valve rod floating seal according to claim 2 is characterized in that, fluctuate hermetical ring is to be formed by the outer circle garter-type spring of the adjacent ring of three lobes lock ring, after pack in the annular cover.
4. according to claim 1,2 described hot blast valve valve rod floating seals, it is characterized in that annular cover external cylindrical surface is inlaid with the O RunddichtringO and filler cassette holder inner periphery constitutes sealing.
5. hot blast valve valve rod floating seal according to claim 1 is characterized in that oil ring inside and outside circle cylinder is established annular oil groove, has through hole to link to each other.
6. hot blast valve valve rod floating seal according to claim 1 is characterized in that, oil ring outer ring oil groove is communicated with filler cassette holder oilhole, on the filler cassette holder outward flange forced filling oil cup is set, and connects oilhole in the filler cassette holder.
7. hot blast valve valve rod floating seal according to claim 1 is characterized in that the external cylindrical surface of wear ring and upper surface all are inlaid with the O RunddichtringO, constitutes sealing with filler cassette holder inner cylinder face and stuffing box bottom surface respectively.
8. hot blast valve valve rod floating seal according to claim 1 is characterized in that, the filler cassette holder hot air valve cover hole of packing into is provided with gasket between the two bottom surface, can select the seal felt pad for use.
9. hot blast valve valve rod floating seal according to claim 1 is characterized in that, Yx type teflin ring is set in the stuffing box, the lock packing of refractory fibre rope, and it is fastening to add gland.
10. according to claim 3,6 described hot blast valve valve rod floating seals, it is characterized in that set O RunddichtringO can adopt the neoprene packing circle in this device.
11. hot blast valve valve rod floating seal according to claim 1 is characterized in that fluctuate hermetical ring, ring-like cover, oil ring and wear ring can adopt the manufacturing of 1Cr18Ni9 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237149 CN2370014Y (en) | 1999-02-01 | 1999-02-01 | Floating seal device for valve rod of hot air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99237149 CN2370014Y (en) | 1999-02-01 | 1999-02-01 | Floating seal device for valve rod of hot air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2370014Y true CN2370014Y (en) | 2000-03-22 |
Family
ID=34024858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99237149 Expired - Fee Related CN2370014Y (en) | 1999-02-01 | 1999-02-01 | Floating seal device for valve rod of hot air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2370014Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912058A (en) * | 2012-10-30 | 2013-02-06 | 中冶东方工程技术有限公司 | Hot-blast valve used in hot-blast furnace system for direct reduced iron vertical furnace |
| CN108443171A (en) * | 2018-03-13 | 2018-08-24 | 浙江宣达特种合金流程装备股份有限公司 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
-
1999
- 1999-02-01 CN CN 99237149 patent/CN2370014Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912058A (en) * | 2012-10-30 | 2013-02-06 | 中冶东方工程技术有限公司 | Hot-blast valve used in hot-blast furnace system for direct reduced iron vertical furnace |
| CN102912058B (en) * | 2012-10-30 | 2015-05-27 | 中冶东方工程技术有限公司 | Hot-blast valve used in hot-blast furnace system for direct reduced iron vertical furnace |
| CN108443171A (en) * | 2018-03-13 | 2018-08-24 | 浙江宣达特种合金流程装备股份有限公司 | A kind of low temperature recycling cyclic acid pump shaft seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |