CN202209476U - Seal valve for bell-free top device of blast furnace - Google Patents
Seal valve for bell-free top device of blast furnace Download PDFInfo
- Publication number
- CN202209476U CN202209476U CN201120281403XU CN201120281403U CN202209476U CN 202209476 U CN202209476 U CN 202209476U CN 201120281403X U CN201120281403X U CN 201120281403XU CN 201120281403 U CN201120281403 U CN 201120281403U CN 202209476 U CN202209476 U CN 202209476U
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- CN
- China
- Prior art keywords
- valve
- valve plate
- transmission shaft
- sealing ring
- sealing
- 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 - Lifetime
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Abstract
The utility model relates to a seal valve for a bell-free top device of a blast furnace. The seal valve comprises a valve plate, a valve seat, a sealing ring, a connecting lever, a transmission shaft, a transmission support, a drive cylinder and a rocking arm, wherein the transmission shaft is inserted in the transmission support, the connecting lever and the rocking arm are respectively fixed on the transmission shaft, a trunnion of the drive cylinder is installed on the transmission support, a piston rod of the drive cylinder is hinged to the rocking arm, the central portion of the valve plate is connected with the connecting lever, the sealing ring is arranged on the valve plate, the sealing cover of the sealing ring on the valve plate is on the same plane with the central line of the transmission shaft, and the sealing ring presses against the sealing surface of the valve seat. Since the central line of the transmission shaft is on the same plane with the sealing ring on the valve plate, the sealing cover of the valve seat simultaneously contacts the sealing ring , when the valve is closed. The horizontal relative speed of the sealing ring relative to the sealing surface of the valve seat is zero. No mechanical wearing and scratch exist between the sealing ring and the sealing surface of the valve seat. The sealing valve has excellent sealing performance, and the sealing ring is long in service lifetime.
Description
Technical field
The utility model relates to a kind of blast furnace bell-less furnace roof equipment that is applied to, and particularly relates to the seal valve that is applied in the blast furnace bell-less furnace roof equipment.
Background technique
In the prior art, the sealability of valve is one of good and bad leading indicator of examination valve mass, and the height of valve seal performance is mainly from two aspects; Let out promptly and leak outside, be meant the seal degree that between valve seat and the closing element medium is reached for interior letting out, in the middle of the interior Seal Design of valve; Mainly be to adopt soft sealing; Its surface of contact cooperates easily, and valve can reach high sealability, and the subject matter that lost efficacy for the sealability of soft sealing pair is in the opening-closing process of valve; When the contact of hard sealing surface, extruding elastic soft sealing, phenomenons such as hard sealing surface and elastic soft sealing generation mechanical wear, scratch.
The model utility content
In view of this; The technical problem that the utility model will solve is the seal valve in a kind of blast furnace bell-less furnace roof equipment is provided, through the present technique scheme, when soft seal ring on the valve plate is contacted with sealing surface of seat; The horizontal relative velocity of the relative sealing surface of seat of seal ring is zero; Be that seal ring is vertically pushed by sealing surface of seat, seal ring and sealing surface of seat do not have phenomenons such as machinery wearing and tearing, scratch, thereby have remedied the deficiency that exists in the existing technology.
For solving the problems of the technologies described above; The technological scheme of the utility model is achieved in that the seal valve in a kind of blast furnace bell-less furnace roof equipment; Include valve plate, valve seat, seal ring, connecting lever, transmission shaft, transmission bracket, driving oil cylinder and rocking arm, said transmission shaft is installed on the transmission bracket, and said connecting lever and rocking arm are separately fixed on the transmission shaft; The gudgeon of said driving oil cylinder is installed on the transmission bracket; The piston rod and the rocking arm of driving oil cylinder are hinged, and the central position of said valve plate is connected with connecting lever, and said seal ring is arranged on the valve plate; Said be arranged on the valve plate seal ring sealing surface and center transmission shaft line at grade, said seal ring is pressed on the sealing surface of seat.
Said valve plate is provided with annular groove, and said seal ring is arranged in the annular groove.
The technique effect that the utility model reaches is following: the seal valve in a kind of blast furnace bell-less furnace roof equipment, through designing special-shaped connecting lever structure, make on valve plate center transmission shaft line and the valve plate seal ring at grade; When valve closes in the closed procedure, valve seat contacts with seal ring on the valve plate simultaneously, and the horizontal relative velocity of the relative sealing surface of seat of seal ring is zero; Be that seal ring is pushed by the sealing surface of seat near normal; Seal ring and sealing surface of seat do not have machinery wearing and tearing and scratch, seal valve good seal performance, seal ring long service life; Connecting lever be connected with driving mechanism again after valve plate assembles, it is convenient that the maintenance valve plate is installed.
Description of drawings
Fig. 1 is the utility model plan view.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the shaft side figure of the utility model.
Among the figure, 1 valve plate, 2 seal rings, 3 connecting levers, 4 transmission bracket, 5 transmission shafts, 6 driving oil cylinder, 7 rocking arms, 8 valve seats, 9 annular grooves.
Embodiment
Technological scheme and embodiment to the utility model is described further below in conjunction with accompanying drawing.
As shown in the figure; Seal valve in a kind of blast furnace bell-less furnace roof equipment that the utility model relates to; Include valve plate 1, valve seat 8, seal ring 2, connecting lever 3, transmission shaft 5, transmission bracket 4, driving oil cylinder 6 and rocking arm 7, said transmission shaft 5 is installed on the transmission bracket 4, and said connecting lever 3 is separately fixed on the transmission shaft 5 with rocking arm 7; The gudgeon of said driving oil cylinder 6 is installed on the transmission bracket 4; The piston rod of driving oil cylinder 6 and rocking arm 7 are hinged, and the central position of said valve plate 1 is connected with connecting lever 3, and said seal ring 2 is arranged on the valve plate 1; Said be arranged on the valve plate 1 seal ring 2 sealing surfaces and transmission shaft 5 center lines at grade, said seal ring 2 is pressed on valve seat 8 sealing surfaces.
Said valve plate 1 is provided with annular groove 9, and said seal ring 2 is arranged in the annular groove 9.
When work; Telescopic drive rocking arm 7 and transmission shaft 5 swings through driving oil cylinder 6 piston rods; Be fixed on the connecting lever 3 on the transmission shaft 5 and be installed in the valve plate 1 on the connecting lever 3, with the flexible rotation that converts valve plate into of driving oil cylinder, thus the keying of realization sealed valve; Because center transmission shaft line and sealing surface are at grade, in the closed procedure of the pass of valve, sealing surface of seat contacts with the seal ring of valve plate simultaneously, and the seat sealing surface vertically pushes, and seal ring and sealing surface of seat do not have phenomenons such as machinery wearing and tearing, scratch to be taken place.
The above is merely the preferred embodiment of the utility model, is not the protection domain that is used to limit the utility model.
Claims (2)
1. the seal valve in the blast furnace bell-less furnace roof equipment includes valve plate, valve seat, seal ring, connecting lever, transmission shaft, transmission bracket, driving oil cylinder and rocking arm, and said transmission shaft is installed on the transmission bracket; Said connecting lever and rocking arm are separately fixed on the transmission shaft; The gudgeon of said driving oil cylinder is installed on the transmission bracket, and the piston rod and the rocking arm of driving oil cylinder are hinged, and it is characterized in that; The central position of said valve plate is connected with connecting lever; Said seal ring is arranged on the valve plate, said be arranged on the valve plate seal ring sealing surface and center transmission shaft line at grade, said seal ring is pressed on the sealing surface of seat.
2. the seal valve in a kind of blast furnace bell-less furnace roof equipment according to claim 1 is characterized in that said valve plate is provided with annular groove, and said seal ring is arranged in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120281403XU CN202209476U (en) | 2011-08-04 | 2011-08-04 | Seal valve for bell-free top device of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120281403XU CN202209476U (en) | 2011-08-04 | 2011-08-04 | Seal valve for bell-free top device of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202209476U true CN202209476U (en) | 2012-05-02 |
Family
ID=45989023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120281403XU Expired - Lifetime CN202209476U (en) | 2011-08-04 | 2011-08-04 | Seal valve for bell-free top device of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202209476U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313068A (en) * | 2011-08-04 | 2012-01-11 | 中冶南方工程技术有限公司 | Sealing valve in bellless top equipment of blast furnace |
-
2011
- 2011-08-04 CN CN201120281403XU patent/CN202209476U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313068A (en) * | 2011-08-04 | 2012-01-11 | 中冶南方工程技术有限公司 | Sealing valve in bellless top equipment of blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120502 |