CN202493697U - Metal valve structure in check valve - Google Patents
Metal valve structure in check valve Download PDFInfo
- Publication number
- CN202493697U CN202493697U CN2012200954478U CN201220095447U CN202493697U CN 202493697 U CN202493697 U CN 202493697U CN 2012200954478 U CN2012200954478 U CN 2012200954478U CN 201220095447 U CN201220095447 U CN 201220095447U CN 202493697 U CN202493697 U CN 202493697U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- metal
- sealing surface
- spool
- 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
Links
- 239000002184 metal Substances 0.000 title claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000000956 alloy Substances 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000004636 vulcanized rubber Substances 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model relates to a metal valve structure in a check valve. The metal valve structure comprises a valve body, a valve seat and a valve element, wherein the valve body and the valve seat are split; metal 1Cr18Ni9T is selected as a base material for the valve seat and the valve element; the lower part of the valve element is provided with an outer conical sealing face; an inner conical surface is arranged between an inner hole of the valve seat and the upper end face of the valve seat and is provided with a nickel-based alloy layer as a sealing face through spray welding; and the outer conical sealing face at the lower part of the valve element and the nickel-based alloy sealing face on the valve seat are coupled to form a metal hard seal valve structure of the check valve. The metal valve structure disclosed by the utility model has the advantages of good sealability and long service life.
Description
Technical field
The utility model relates to a kind of one-way valve, and the metal valve sealing configuration in particularly a kind of one-way valve belongs to Machine Design manufacturing technology field.
Background technique
Valve sealing configuration in the existing one-way valve is turning one circular groove on the conical surface of spool bottom; Sulfuration caulking gum in the circular groove; Spraying one deck nickel-base alloy on the conical seal (contact) face of valve seat, caulking gum on the formation spool and the valve sealing surface between the nickel-base alloy on the valve seat.This sealing configuration such as improper use meeting produce cavitation erosion, are prone to make the vulcanized rubber on the spool to peel off, damage, and cause significantly reduce the working life of valve.Have data to show, the sealing life of rubber is usually between 15-20, and the sealing life of metal is up to 80-90.Therefore, all happy sealing surface that metallic seal is used for one-way valve is a developing direction.
Summary of the invention
The purpose of the utility model is to provide the structure of the metal valve in a kind of one-way valve, utilizes the hard sealing between metal and the metal, realizes improving the one-way valve purpose in working life.
To achieve the above object, the present utility model posed to the following technical implementation of the program include: valve, valve seat and valve, the valve body and the valve seat is split between the two has a ring, an annular valve seat structure, seat and plug are selected 1Cr18Ni9T metal to the substrate, wherein a lower portion of the outer conical valve sealing surface; seat bore between the upper end surface of a tapered inner surface, the inner spray cone welding a layer of nickel-base alloy as a sealing surface; conical valve sealing surface of the outer lower portion of the valve seat on the sealing surface of a nickel-based alloy coupling.
The utility model is selected the base material of 1Cr18Ni9T metal as spool and valve seat for use, and the bevel sealing surface coupling forms the sealing valve structure of one-way valve in male cone (strobilus masculinus) through the spool bottom and the nickel-base alloy on the valve seat.Since on the inner conical surface of valve seat surfacing one deck nickel-base alloy as sealing surface, so the sealing surface on the valve seat has higher hardness; Because spool adopts the 1Cr18Ni9T metal to process, so the outer bevel sealing surface hardness on the spool is lower, can make the valve sealing surface between spool and the valve seat have more excellent sealing performance and antiwear property like this.
The useful contribution of the utility model is through the hard sealing between metal and the metal, makes better, the longer service life of valve sealing surface sealability in the throttle valve.
Description of drawings
Accompanying drawing 1 is the structural principle schematic representation of the utility model.
In accompanying drawing 1: 1 valve body, 2 spools, 3 valve seats, 301 sealing surfaces, 4 seal rings.
Embodiment
Shown in accompanying drawing 1, valve body 1 is split type with valve seat 3, and valve seat 3 is an annular solid, is provided with seal ring 4 between valve body 1 and the valve seat 3; Spool 2 all adopts the 1Cr18Ni9T metal to process with valve seat 3; The lower end of spool 2 is provided with outer bevel sealing surface; Be provided with inner conical surface between the endoporus of valve seat 3 and the upper-end surface; On the inner conical surface surfacing one deck nickel-base alloy, and through grinding the interior bevel sealing surface 301 that forms valve seat 3 behind this layer nickel-base alloy, the sealing valve structure of the outer bevel sealing surface of spool 2 bottoms and the formation of interior bevel sealing surface 301 couplings on the valve seat 3 one-way valve.Because the utility model adopts on spool 2 and the valve seat 3 the pure metal sealing surface hard sealing valve structure of coupling mutually; And the outer bevel sealing surface hardness of spool 2 bottoms is starkly lower than has nickel-base alloy sealing surface hardness on the valve seat 3; Therefore the utility model good seal performance not only, and sealing life is long.
Claims (1)
1. the metal valve structure in the one-way valve; Comprise valve body, valve seat and spool; Said valve body and valve seat are split type, are provided with seal ring between the two, and valve seat is a loop configuration; It is base material that valve seat and spool are all selected the 1Cr18Ni9T metal, it is characterized in that the spool bottom is provided with the external conical shape sealing surface; Be provided with inner conical surface between the endoporus of valve seat and the upper-end surface, on the inner conical surface surfacing one deck nickel-base alloy as sealing surface; Nickel-base alloy sealing surface coupling mutually on the external conical shape sealing surface of spool bottom and the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200954478U CN202493697U (en) | 2012-03-15 | 2012-03-15 | Metal valve structure in check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200954478U CN202493697U (en) | 2012-03-15 | 2012-03-15 | Metal valve structure in check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493697U true CN202493697U (en) | 2012-10-17 |
Family
ID=46999929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200954478U Expired - Lifetime CN202493697U (en) | 2012-03-15 | 2012-03-15 | Metal valve structure in check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493697U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438252A (en) * | 2013-08-13 | 2013-12-11 | 季祖云 | Tank breathable check valve |
| CN106641281A (en) * | 2017-01-23 | 2017-05-10 | 上海振华重工(集团)股份有限公司 | Valve |
| CN111927757A (en) * | 2020-07-31 | 2020-11-13 | 华中科技大学 | Independent compensation hard sealing integrated ultrahigh pressure distribution valve and ultrahigh pressure hydraulic pump |
| CN111927726A (en) * | 2020-07-31 | 2020-11-13 | 华中科技大学 | Compact type high-pressure buoyancy adjusting seawater pump |
-
2012
- 2012-03-15 CN CN2012200954478U patent/CN202493697U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438252A (en) * | 2013-08-13 | 2013-12-11 | 季祖云 | Tank breathable check valve |
| CN106641281A (en) * | 2017-01-23 | 2017-05-10 | 上海振华重工(集团)股份有限公司 | Valve |
| CN106641281B (en) * | 2017-01-23 | 2020-10-27 | 上海振华重工(集团)股份有限公司 | a valve |
| CN111927757A (en) * | 2020-07-31 | 2020-11-13 | 华中科技大学 | Independent compensation hard sealing integrated ultrahigh pressure distribution valve and ultrahigh pressure hydraulic pump |
| CN111927726A (en) * | 2020-07-31 | 2020-11-13 | 华中科技大学 | Compact type high-pressure buoyancy adjusting seawater pump |
| CN111927726B (en) * | 2020-07-31 | 2021-07-27 | 华中科技大学 | A compact high-pressure buoyancy-regulated seawater pump |
| CN111927757B (en) * | 2020-07-31 | 2021-08-03 | 华中科技大学 | An independent compensation hard seal integrated ultra-high pressure distribution valve and ultra-high pressure hydraulic pump |
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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 |
Granted publication date: 20121017 |
|
| CX01 | Expiry of patent term |