CN102155553A - High-temperature and high-pressure resistant metallic sealing ball valve - Google Patents
High-temperature and high-pressure resistant metallic sealing ball valve Download PDFInfo
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- CN102155553A CN102155553A CN2011101099877A CN201110109987A CN102155553A CN 102155553 A CN102155553 A CN 102155553A CN 2011101099877 A CN2011101099877 A CN 2011101099877A CN 201110109987 A CN201110109987 A CN 201110109987A CN 102155553 A CN102155553 A CN 102155553A
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- valve
- valve seat
- barrel
- right valve
- spheroid
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Abstract
The invention relates to a high-temperature and high-pressure resistant metallic sealing ball valve, which comprises a left valve body, a right valve body, a valve rod and a ball body, wherein a bracket is arranged on the right valve body fixedly; a seal packing is arranged between the right valve body and the valve rod; a valve rod transmission device is arranged on the bracket; the valve rod is in transmission connection with the ball body; a left valve seat and a right valve seat are arranged in the left valve body and the right valve body respectively; Stellite alloy layers are coated on sealing surfaces of the left valve seat and the right valve seat; the ball body is made of stainless steel; a hard alloy layer is coated on the surface of the ball body; and an elastic ring which provides a pre-tightening force between the left valve seat and the ball body is arranged between the left valve seat and the left valve body. The ball valve has the advantages of high-temperature resistance, high-pressure resistance, long service life and good sealing effect.
Description
Technical field
The present invention relates to a kind of valve, relate in particular to a kind of high temperature high voltage resistant metal seal ball valve.
Background technique
As everyone knows, ball valve is a kind of valve commonly used, generally comprise left valve barrel, valve rod, spheroid, right valve barrel etc., on valve body, be installed with support, be provided with stuffing box packing between valve body and the valve rod, be provided with the valve rod transmission device on support, valve rod and spheroid are in transmission connection, and are respectively equipped with left valve seat and right valve seat in left valve barrel and the right valve barrel.Ball valve is mainly made cut-out, throttling, branch adapted on pipeline.The ball valve of prior art sealing pair adopt the hard sealing structure form of whole common metal to common metal, the sealing pair of common metal is high temperature resistant, high voltage bearing poor-performing, and has wearing and tearing easily, the shortcoming that sealing effect is poor, working life is short.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of metal seal ball valve of high temperature resistant, high pressure resistant, long service life is provided.
The present invention solves the problems of the technologies described above the technological scheme that is adopted: the high temperature high voltage resistant metal seal ball valve, comprise left valve barrel, right valve barrel, valve rod and spheroid, on right valve barrel, be installed with support, be provided with stuffing box packing between right valve barrel and the valve rod, on support, be provided with the valve rod transmission device, valve rod and spheroid are in transmission connection, be respectively equipped with left valve seat and right valve seat in left valve barrel and the right valve barrel, the sealing surface spraying stellite layer of described left valve seat and right valve seat, spheroid is made by stainless steel, surperficial coated with hard alloy-layer.
As further improvement, described right valve seat is fixedlyed connected with right valve barrel, and left valve seat is radially fixedlyed connected with left valve barrel, axial flexible connection, makes the elastic ring that has pretightening force between left valve seat and the spheroid being provided with between left valve seat and the left valve barrel.
Useful technique effect of the present invention is: because the sealing surface of left valve seat and right valve seat spraying stellite layer, spheroid is made by stainless steel, surperficial coated with hard alloy-layer.Thereby has an advantage high temperature resistant, high pressure resistant, long service life; In addition, owing to make the elastic ring that has pretightening force between left valve seat and the spheroid being provided with between left valve seat and the left valve barrel, has advantage of good sealing effect.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described:
As shown in Figure 1, the high temperature high voltage resistant metal seal ball valve, comprise left valve barrel 1, right valve barrel 2, valve rod 3 and spheroid 4, on right valve barrel 2, be installed with support 5, be provided with stuffing box packing 6 between right valve barrel 2 and the valve rod 3, on support 5, be provided with valve rod transmission device 7, valve rod 3 is in transmission connection with spheroid 4, be respectively equipped with left valve seat 8 and right valve seat 9 in left valve barrel 1 and the right valve barrel 2, the sealing surface spraying stellite layer 10 of described left valve seat 8 and right valve seat 9, spheroid 4 is made surperficial coated with hard alloy-layer 11 by stainless steel.
In embodiment 1 (as shown in Figure 1), described right valve seat 9 is fixedlyed connected with right valve barrel 2, left side valve seat 8 is radially fixedlyed connected with left valve barrel 1, axial flexible connection, makes the elastic ring 12 that has pretightening force between left valve seat 8 and the spheroid 4 being provided with between left valve seat 8 and the left valve barrel 1.Described elastic ring 12 is a belleville spring.
In embodiment 2, (scheme not shown), described left valve seat 8 is fixedlyed connected with left valve barrel 1, right valve seat 9 is radially fixedlyed connected with right valve barrel 2, axial flexible connection, makes the elastic ring 12 that has pretightening force between right valve seat 9 and the spheroid 4 being provided with between right valve seat 9 and the right valve barrel 2.
Claims (4)
1. high temperature high voltage resistant metal seal ball valve, comprise left valve barrel, right valve barrel, valve rod and spheroid, on right valve barrel, be installed with support, be provided with stuffing box packing between right valve barrel and the valve rod, be provided with the valve rod transmission device on support, valve rod and spheroid are in transmission connection, be respectively equipped with left valve seat and right valve seat in left valve barrel and the right valve barrel, it is characterized in that: the sealing surface spraying stellite layer of described left valve seat and right valve seat, spheroid is made by stainless steel, surperficial coated with hard alloy-layer.
2. high temperature high voltage resistant metal seal ball valve according to claim 1, it is characterized in that: described right valve seat is fixedlyed connected with right valve barrel, left side valve seat is radially fixedlyed connected with left valve barrel, axial flexible connection, makes the elastic ring that has pretightening force between left valve seat and the spheroid being provided with between left valve seat and the left valve barrel.
3. high temperature high voltage resistant metal seal ball valve according to claim 1, it is characterized in that: described left valve seat is fixedlyed connected with left valve barrel, right valve seat is radially fixedlyed connected with right valve barrel, axial flexible connection, makes the elastic ring that has pretightening force between right valve seat and the spheroid being provided with between right valve seat and the right valve barrel.
4. according to claim 2 or 3 described high temperature high voltage resistant metal seal ball valves, it is characterized in that: described elastic ring is a belleville spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101099877A CN102155553A (en) | 2011-04-22 | 2011-04-22 | High-temperature and high-pressure resistant metallic sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101099877A CN102155553A (en) | 2011-04-22 | 2011-04-22 | High-temperature and high-pressure resistant metallic sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102155553A true CN102155553A (en) | 2011-08-17 |
Family
ID=44437166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101099877A Pending CN102155553A (en) | 2011-04-22 | 2011-04-22 | High-temperature and high-pressure resistant metallic sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102155553A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367879A (en) * | 2011-11-21 | 2012-03-07 | 苏州纽威阀门股份有限公司 | Top-entry floating ball valve |
| CN102840358A (en) * | 2012-08-29 | 2012-12-26 | 江阴万讯自控设备有限公司 | Single-flow-direction floating ball metal hard seal ball valve |
| CN104421447A (en) * | 2013-08-27 | 2015-03-18 | 上海纽京工业设备有限公司 | Ultra-high temperature multi-seal ball valve and machining method of valve seat sealing surface thereof |
-
2011
- 2011-04-22 CN CN2011101099877A patent/CN102155553A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367879A (en) * | 2011-11-21 | 2012-03-07 | 苏州纽威阀门股份有限公司 | Top-entry floating ball valve |
| CN102840358A (en) * | 2012-08-29 | 2012-12-26 | 江阴万讯自控设备有限公司 | Single-flow-direction floating ball metal hard seal ball valve |
| CN104421447A (en) * | 2013-08-27 | 2015-03-18 | 上海纽京工业设备有限公司 | Ultra-high temperature multi-seal ball valve and machining method of valve seat sealing surface thereof |
| CN104421447B (en) * | 2013-08-27 | 2016-10-19 | 上海纽京工业设备有限公司 | The many seal ball-valves of superhigh temperature and the processing method of sealing surface of seat thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110817 |