CN202561075U - Triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve - Google Patents
Triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve Download PDFInfo
- Publication number
- CN202561075U CN202561075U CN2012202621243U CN201220262124U CN202561075U CN 202561075 U CN202561075 U CN 202561075U CN 2012202621243 U CN2012202621243 U CN 2012202621243U CN 201220262124 U CN201220262124 U CN 201220262124U CN 202561075 U CN202561075 U CN 202561075U
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- butterfly plate
- valve rod
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Abstract
The utility model relates to a triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve which comprises a valve body, a butterfly plate, a valve rod and a driving device, wherein a valve seat is arranged in a valve body channel; a conical sealing surface is arranged on the valve seat; an eccentric angle is formed between a cone central line formed by the conical sealing surface and a central line of the valve body channel; the upper end of the valve rod is fixedly connected with the driving device; the lower end of the valve rod is in movable fit connection with a lower shaft sleeve fixed in the valve body; the butterfly plate is fixedly arranged at the middle of the valve rod through two lugs; a central line of the valve rod is offset from a sealing surface of the butterfly plate; and the central line of the valve rod is offset from the central line of the valve body channel. The triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve is mainly characterized in that a hard sealing ring is arranged on the butterfly plate, is provided with a conical sealing surface which is mutually matched with the conical sealing surface of the valve seat and is arranged in a plane of the butterfly plate by a pressing ring in a press fitting way. The triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve has the advantages of scouring resistance, wear resistance, high temperature resistance, convenience in manufacture and maintenance, long service life and the like and is suitable for control valves of blast furnace iron-making and blast furnace slag-quenching systems.
Description
Technical field
The utility model relates to valve field, particularly about a kind of three eccentric hard seal butterfly valves.The utility model is applicable to the control valve of blast furnace ironmaking, blast furnace slag flushing system.
Background technique
At present, butterfly valve is simple in structure because of it, open-close convenient, in field extensive uses such as oil, chemical industry, metallurgy, water power, mainly contains soft seal circle or multi-layer sealing ring assembly in the seal form that has butterfly valve now.Like the patent No. is the three eccentric multi-level seal butterfly valves of ZL200720036089.2; Its butterfly plate seal ring is formed by stacking stainless steel seal ring and asbestos slate seal ring; Have hard soft double seal, no matter under low temperature still is worst hot case, all have excellent sealing performance.Yet in blast furnace ironmaking, blast furnace slag flushing system, owing to there is impurity such as slag, no matter use soft seal coil structures or multi-layer sealing ring structure, the front that its soft seal band can receive slag is washed away and fragile; And under ultralow temperature, superhigh temperature and high pressure operating mode, its soft seal band easy deformation and make seal failure, thus influence the sealability and the working life of butterfly valve.
Summary of the invention
The purpose of the utility model is the shortcoming that exists to existing technology, and a kind of wear-resisting, high temperature resistant, good seal performance, long three eccentric metal sealing Wear-resistant, high-temperature resistant butterfly valve of life-span are provided.
The technological scheme of the utility model comprises valve body, butterfly plate, valve rod, drive unit; Be shaped on valve seat in the valve channel, valve seat is shaped on conical seal (contact) face, has eccentric angle between formed cone center line of this conical seal (contact) face and the valve channel center line; The valve rod upper end is fixedly connected with drive unit; The valve rod lower end Lower shaft sleeve interior with being fixed on valve body is connected movingly, and butterfly plate is fixedly installed in the valve rod middle part through two lugs, and valve rod center line and butterfly plate sealing surface form skew; Valve rod center line and valve channel center line form skew; Mainly be that a hard seal ring is installed on the butterfly plate, this hard seal ring has the conical seal (contact) face that cooperatively interacts with the valve seat conical seal (contact) face, is press-fited in the butterfly plate plane by trim ring.
In above technological scheme, be shaped on first positioning step and second positioning step in the butterfly plate plane, the hard seal ring is installed on said first positioning step, on said second positioning step trim ring is installed.
In above technological scheme, trim ring is shaped on positioning step in the plane, forms locating slot between first positioning step in this positioning step and the butterfly plate plane, and the hard seal ring is installed in this locating slot, and its sealing surface stretches out outside the said locating slot.
In above technological scheme, built-up welding has the abrasion-resistant metal layer on the valve seat conical seal (contact) face.
In above technological scheme, said hard seal ring adopts metal wear resistant material.
The utility model has the advantages that: the sealing that cooperatively interacts of hard seal ring and valve seat conical seal (contact) face is installed on the butterfly plate, has characteristics such as anti-ly wash away, wear-resistant, high temperature resistant; Built-up welding has the abrasion-resistant metal layer on the valve seat conical seal (contact) face, has wear-resisting property; The hard seal ring is press-fited on butterfly plate by trim ring, only needs to change the hard seal ring behind the sealing surface wear and gets final product manufacturing, easy to maintenance, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Three eccentric metal sealing Wear-resistant, high-temperature resistant butterfly valve as shown in Figure 1 comprises valve body 1, butterfly plate 9, valve rod 6, drive unit 8, is shaped on valve seat 3 in valve body 1 passage; Valve seat 3 is shaped on conical seal (contact) face; Have eccentric angle between formed cone center line of this conical seal (contact) face and valve body 1 channel centerline, valve rod 6 upper ends are fixedly connected with drive unit 8, and valve rod 6 lower ends are connected with Lower shaft sleeve 2 in being fixed on valve body 1 movingly; Butterfly plate 6 is fixedly installed in valve rod 6 middle parts through two lugs 7; Valve rod 6 center lines and butterfly plate 9 sealing surfaces form skew, and valve rod 6 center lines and valve body 1 channel centerline form skew, and a hard seal ring 5 is installed on the butterfly plate 9; This hard seal ring 5 has the conical seal (contact) face that cooperatively interacts with valve seat 3 conical seal (contact) faces, is press-fited in butterfly plate 9 planes by trim ring 10.This hard seal ring 5 is not allowed to be subject to medium and is washed away and wear and tear under butterfly plate 9 opening states, and only needs to change hard seal ring 5 valves behind its sealing surface wear and can reuse.
Be shaped on first positioning step and second positioning step in butterfly plate 9 planes, hard seal ring 5 is installed on said first positioning step, trim ring 10 is installed on said second positioning step.Promptly the diameter of first positioning step equates with the diameter of bore of hard seal ring 5; The diameter of second positioning step equates with the diameter of bore of trim ring 10; The inner hole sleeve of trim ring 10 is contained on second positioning step, and trim ring 10 circumferential plane are installed in butterfly plate 9 planes by screw 11.
Trim ring is shaped on positioning step in 10 planes, forms locating slot between first positioning step in this positioning step and butterfly plate 9 planes, and hard seal ring 5 is installed in this locating slot, and its sealing surface stretches out outside the said locating slot.
Built-up welding has abrasion-resistant metal layer 4 on valve seat 3 conical seal (contact) faces, improves the wear-resisting property of sealing surface.Hard seal ring 5 adopts metal wear resistant material.
Claims (6)
1. a three eccentric metal seals the Wear-resistant, high-temperature resistant butterfly valve; Comprise valve body (1), butterfly plate (9), valve rod (6), drive unit (8); Be shaped on valve seat (3) in valve body (1) passage, valve seat (3) is shaped on conical seal (contact) face, has eccentric angle between formed cone center line of this conical seal (contact) face and valve body (1) channel centerline; Valve rod (6) upper end is fixedly connected with drive unit (8); Valve rod (6) the lower end Lower shaft sleeve (2) interior with being fixed on valve body (1) is connected movingly, and butterfly plate (6) is fixedly installed in valve rod (6) middle part through two lugs (7), and valve rod (6) center line and butterfly plate (9) sealing surface form skew; Valve rod (6) center line and valve body (1) channel centerline form skew; It is characterized in that upward installation one hard seal ring (5) of butterfly plate (9), this hard seal ring (5) has the conical seal (contact) face that cooperatively interacts with valve seat (3) conical seal (contact) face, is press-fited in butterfly plate (9) plane by trim ring (10).
2. three eccentric metal sealing Wear-resistant, high-temperature resistant butterfly valve according to claim 1; It is characterized in that being shaped on first positioning step and second positioning step in butterfly plate (9) plane; Hard seal ring (5) is installed on said first positioning step, trim ring (10) is installed on said second positioning step.
3. three eccentric metal sealing Wear-resistant, high-temperature resistant butterfly valve according to claim 2; It is characterized in that being shaped on positioning step in trim ring (10) plane; Form locating slot between first positioning step in this positioning step and butterfly plate (9) plane; Hard seal ring (5) is installed in this locating slot, and its sealing surface stretches out outside the said locating slot.
4. three eccentric metal sealing Wear-resistant, high-temperature resistant butterfly valve according to claim 1 and 2 is characterized in that built-up welding has abrasion-resistant metal layer (4) on valve seat (3) conical seal (contact) face.
5. three eccentric metal sealing Wear-resistant, high-temperature resistant butterfly valve according to claim 3 is characterized in that built-up welding has abrasion-resistant metal layer (4) on valve seat (3) conical seal (contact) face.
6. three eccentric metal sealing Wear-resistant, high-temperature resistant butterfly valve according to claim 5 is characterized in that hard seal ring (5) adopts metal wear resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202621243U CN202561075U (en) | 2012-05-22 | 2012-05-22 | Triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202621243U CN202561075U (en) | 2012-05-22 | 2012-05-22 | Triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202561075U true CN202561075U (en) | 2012-11-28 |
Family
ID=47210734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202621243U Expired - Fee Related CN202561075U (en) | 2012-05-22 | 2012-05-22 | Triple-eccentric metallic seal wear-resistant and high temperature-resistant butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202561075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279341A (en) * | 2013-07-04 | 2015-01-14 | 浙江北泽阀门制造有限公司 | Triple-eccentric two-way hard sealing butterfly valve |
-
2012
- 2012-05-22 CN CN2012202621243U patent/CN202561075U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279341A (en) * | 2013-07-04 | 2015-01-14 | 浙江北泽阀门制造有限公司 | Triple-eccentric two-way hard sealing butterfly 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: 20121128 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |