CN102465249A - High-pressure resisting hard sealing manual flat valve - Google Patents
High-pressure resisting hard sealing manual flat valve Download PDFInfo
- Publication number
- CN102465249A CN102465249A CN2010105505860A CN201010550586A CN102465249A CN 102465249 A CN102465249 A CN 102465249A CN 2010105505860 A CN2010105505860 A CN 2010105505860A CN 201010550586 A CN201010550586 A CN 201010550586A CN 102465249 A CN102465249 A CN 102465249A
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- CN
- China
- Prior art keywords
- flashboard
- hard sealing
- flat valve
- pressure resisting
- manual flat
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Abstract
The invention relates to a high-pressure resisting hard sealing manual flat valve and particularly relates to the high-pressure resisting hard sealing manual flat valve in the flashboard material and manufacturing method. The high-pressure resisting hard sealing manual flat valve comprises a flashboard, wherein alloy carburizing steel is taken as a manufacturing material and a heat processing technology for a thickened surface carburizing layer is adopted for manufacturing the flashboard; the steel number of the alloy carburizing steel is 20CrMnMo; and the depth of the surface carburizing layer is not less than 2mm. In the invention, the purpose of taking 20CrMnMo as a flashboard material and adopting the thickened surface carburizing layer is to increase the tensile strength and deformation resistance of the flashboard. The high-pressure resisting hard sealing manual flat valve has the advantages of simpleness in processing technology, low manufacturing cost, high flashboard strength, high pressure durability, capability of meeting a test demand of the valve under a fully opened state, and the like.
Description
Technical field
The present invention relates to the manual flap type of a kind of hard sealing, relate in particular to the material and the making method of flashboard in the manual flap type of a kind of hard sealing, belong to liquid (gas) body technical field of valve manufacturing.
Background technology
At present extensively apply to the manual flap type of hard sealing in oil field shaft mouth X-tree or the oil pipeline, its principle of work is: realize the open and close of valve through the relative position between conversion flashboard and the valve seat.Said flashboard profile is a rectangular parallelepiped, and rectangular parallelepiped is provided with two trims, the upper end that are parallel to each other and is provided with the T-slot, the bottom that connect valve rod and is provided with the manhole perpendicular to two trims, and the material of flashboard is selected 40Cr mostly for use.Valve seat is two and closely connected respectively on two trims of flashboard.The closure of the Kong Shiwei valve on the entity part complete closed valve seat on flashboard top; When the hole of flashboard bottom is the standard-sized sheet of valve when hole on the valve seat overlaps.For preventing two trim rapid wears of flashboard, on two sealing face also vacuum spraying one deck nickel-base alloy.At standard code be: " industrial gas oil, drilling well and oil production equipment, well head set-up and X-tree " national standard and the standard code of GB/T22513-2008 are: in the 19th edition " well head set-up and X-tree equipment specifications " general international standard of API spec 6A-2004; All stipulated valve seat hermetically sealed with half-open position under the pressure test standard; And the valve that most of valve manufacturing firm produces, its testing data can both reach above-mentioned two standard-requireds.Present problem is that considerable part is used valve unit; Propose to increase the rated pressure test of valve seat under full-gear according to actual user demand; And the test of the rated pressure under the full-gear is not made stipulations in above-mentioned two standards, and the manual flap type of existing hard sealing all can not be through the TR under this state.Its problem that shows is: radial crack appears in the circular port week of flashboard bottom, and even more serious person then phenomenon occurs tearing at the circular port smallest cross-sectional place of flashboard bottom.Analyze its reason nothing more than by due to two kinds of factors: one, the sectional area of Kong Zhouyu flashboard end is too little; Two, the strength of materials selected for use of flashboard is not enough.Can under the situation that does not change the flashboard shape, select a kind of intensity better material for use and adopt certain working method to satisfy the needs of flashboard tension, anti-deformation so, then be the problem that is worth research.
Summary of the invention
The object of the present invention is to provide the manual flap type of a kind of high pressure resistant hard sealing, it is not changing under the preceding topic of former flashboard shape, also adopts more rational working method through selecting more suitable material for use, thereby realizes the high voltage bearing purpose of flashboard.
The present invention adopts following technical scheme to implement: it comprises flashboard.Said flashboard selects for use alloy carburizing steel to process as the heat-treatment technology method of manufacturing materials and employing thickening surface cementation layer.The grade of steel of said alloy carburizing steel is: 20CrMnMo; Said depth of case-harden is not less than 2mm.The present invention selects the purpose of 20CrMnMo as flashboard material and employing thickening surface cementation layer for use, is tensile strength and the ability of anti-deformation in order to increase flashboard.
The present invention has that complete processing is simple, low preparation cost, flashboard intensity pressure high, that can bear are big, can satisfy the advantages such as test request of valve under full-gear.
Description of drawings
Accompanying drawing 1 is a main sectional structure synoptic diagram of the present invention;
Accompanying drawing 2 is the main TV structure synoptic diagram of flashboard in the accompanying drawing 1;
Accompanying drawing 3 is the left TV structure synoptic diagram of flashboard in the accompanying drawing 1.
In accompanying drawing 12,3: 1, flashboard, 2, trim, 3 through holes.
Embodiment
Like accompanying drawing 1,2, shown in 3, flashboard 1 selects for use alloy carburizing steel to process as the heat-treatment technology method of manufacturing materials and employing thickening surface cementation layer.The grade of steel of said alloy carburizing steel is: 20CrMnMo; Said depth of case-harden is not less than 2mm, and the intensity of flashboard 1 and ability of anti-deformation have obtained significantly improving thus.The manual flap type of the existing hard sealing of statement once in background technology, the problem that under flashboard 1 full-gear, is occurred through test comprises: radial crack appears in the hole week of flashboard 1 lower through-hole.This is because the recoverable deformation that effect occurred that flashboard 1 smallest cross-sectional is in rated pressure causes.Because on two trims 2 of flashboard 1, for to prevent the surperficial rapid wear of trim, and sprayed one deck nickel-base alloy, the resistance to tension of this layer nickel-base alloy is very fragile.When through hole 3 hole face when recoverable deformation occurring after receiving powerful hydraulic coupling, the form that this layer nickel-base alloy showed can only be to tear, and when the stressed entering viscous deformation of the plate body of flashboard 1, it is more obvious that it tears depth.Therefore, select 20CrMnMo for use and increase case depth and can increase the б of flashboard 1 self effectively
s, б
b, therefore when rated pressure acted on through hole 3 walls on the flashboard 1, not only the intensity at smallest cross-sectional place had satisfied test request, and the elastoresistance deformation ability has also obtained reinforcement.
Claims (2)
1. manual flap type of high pressure resistant hard sealing, it comprises flashboard, flashboard is selected alloy carburizing steel for use and is adopted the heat-treatment technology method of thickening surface cementation layer to process, and it is characterized in that the grade of steel of said alloy carburizing steel is: 20CrMnMo.
2. the manual flap type of a kind of high pressure resistant hard sealing according to claim 1 is characterized in that said depth of case-harden is not less than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105505860A CN102465249A (en) | 2010-11-19 | 2010-11-19 | High-pressure resisting hard sealing manual flat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105505860A CN102465249A (en) | 2010-11-19 | 2010-11-19 | High-pressure resisting hard sealing manual flat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102465249A true CN102465249A (en) | 2012-05-23 |
Family
ID=46069366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105505860A Pending CN102465249A (en) | 2010-11-19 | 2010-11-19 | High-pressure resisting hard sealing manual flat valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102465249A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154630A (en) * | 2015-09-11 | 2015-12-16 | 平高集团有限公司 | High-tension switch pipe valve preparation method and high-tension switch pipe valve |
| CN105177494A (en) * | 2015-09-11 | 2015-12-23 | 平高集团有限公司 | High-voltage switching tube valve manufacturing method and high-voltage switching tube valve |
| CN109487203A (en) * | 2018-12-31 | 2019-03-19 | 安徽银龙泵阀股份有限公司 | Valve plate surface carbo-nitriding processing method |
| CN112833242A (en) * | 2021-01-25 | 2021-05-25 | 江苏苏盐阀门机械有限公司 | Manual anti-theft flat valve |
-
2010
- 2010-11-19 CN CN2010105505860A patent/CN102465249A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154630A (en) * | 2015-09-11 | 2015-12-16 | 平高集团有限公司 | High-tension switch pipe valve preparation method and high-tension switch pipe valve |
| CN105177494A (en) * | 2015-09-11 | 2015-12-23 | 平高集团有限公司 | High-voltage switching tube valve manufacturing method and high-voltage switching tube valve |
| CN105177494B (en) * | 2015-09-11 | 2017-10-10 | 平高集团有限公司 | High-voltage switch gear pipe valve preparation method and high-voltage switch gear pipe valve |
| CN109487203A (en) * | 2018-12-31 | 2019-03-19 | 安徽银龙泵阀股份有限公司 | Valve plate surface carbo-nitriding processing method |
| CN112833242A (en) * | 2021-01-25 | 2021-05-25 | 江苏苏盐阀门机械有限公司 | Manual anti-theft flat valve |
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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: 20120523 |