CN203051781U - Plunger type discharge valve - Google Patents
Plunger type discharge valve Download PDFInfo
- Publication number
- CN203051781U CN203051781U CN 201220639149 CN201220639149U CN203051781U CN 203051781 U CN203051781 U CN 203051781U CN 201220639149 CN201220639149 CN 201220639149 CN 201220639149 U CN201220639149 U CN 201220639149U CN 203051781 U CN203051781 U CN 203051781U
- Authority
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- China
- Prior art keywords
- valve body
- valve
- sealing ring
- medium channel
- plunger type
- 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 - Fee Related
Links
- 238000007599 discharging Methods 0.000 claims description 24
- 230000008676 import Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 8
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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Abstract
The utility model relates to the technical field of valves, in particular to a plunger type discharge valve, which comprises a valve body, a valve core and a valve rod, wherein the valve body is provided with a medium channel, an inlet of the medium channel is positioned on the top of the valve body, and an outlet of the medium channel is positioned on the peripheral wall of the valve body; the valve core is positioned in the medium channel and is matched with the inlet of the medium channel in a sealing manner; an O-shaped sealing ring matched with the peripheral surface of the valve core in a sealing manner is assembled in the valve body, and an interface sealing ring matched with the peripheral surface of the valve core in a sealing manner is also assembled in the valve body; and the interface sealing ring is positioned under the O-shaped sealing ring. In a use process, the lower side surface of the O-shaped sealing ring can be separated from the external environment through the interface sealing ring so as to slow down the damage process of the O-shaped sealing ring, and at the same time, after the O-shaped sealing ring is damaged by corrosion, the interface sealing ring also can replace the O-shaped sealing ring to work within a certain period, so that the plunger type discharge valve disclosed by the utility model solves the problem that the O-shaped sealing ring of an existing plunger type discharge valve needs to be changed frequently.
Description
Technical field
The utility model relates to valve technology field, especially a kind of plunger type discharging valve.
Background technique
The plunger type discharging valve is used for the blowing of various containers such as reactor and pipeline dispensing and no dead band turn-offed to be operated.For the system that needs the work of valve delivery, the discharging valve that plunger valve compares is more suitable.Because plunger mobile process in valve pocket also is the process of cleaning valve pocket, therefore, plunger valve can be applicable to the slurry processing medium.It can dock with various outlet of container, carries out pipeline sampling and blowing.
Application number is 2006200938569 the disclosed electronic plunger type dispensing valve of Chinese patent, and application number is that 2011202267771 the disclosed plunger type discharging valve of Chinese patent all is typical plunger type discharging valves.But no matter be electrodynamic type, or manually operated type, the plunger type discharging valve includes valve body, the spool of plunger type and the valve rod that links together with spool, wherein be provided with medium channel in the valve body, the import of medium channel is positioned at the valve body top, its outlet is positioned at a circumferential side place of valve body, spool is arranged in the medium channel of valve body, valve rod and valve body screw-thread fit and the two form screw-nut body, spool can rotate with respect to valve rod, during work, drives spool by rotation valve rod and moves, thereby by the top seal of spool or the import of open valve body medium passage, finish cut-out and conducting to medium channel.
In the present plunger type discharging valve, valve body adopts split-type structural more, comprise active section and the lever piece that fixedly is assemblied in the active section lower end, described medium channel is positioned on the active section of valve body, the lever piece screw-thread fit of valve rod and valve body, wherein in order to prevent that respective media is from the outlet below leakage of medium channel, be provided with the sealing configuration that the side face with spool is sealed and matched at the active section of valve body on the valve body, wherein the most frequently used sealing configuration is the O RunddichtringO and is the single-stage sealing, because the particularity (reactor) of the application of plunger type discharging valve, therefore unavoidable will the contacting with corresponding medium of upper side of O RunddichtringO, thereby the damage that very easily is corroded, in this simultaneously, its downside contacts with air in the surrounding environment, corrosion and damage such as corrosive gas that very easily existed in the surrounding environment again, and the O RunddichtringO is in case damage, just can directly cause the leakage of medium, this kind situation never allows to take place in fields such as biochemistry, and therefore present plunger type discharging valve need be changed the O RunddichtringO frequently.
Summary of the invention
The purpose of this utility model is to provide a kind of plunger type discharging valve, needs the problem of the frequent O of replacing RunddichtringO to solve existing plunger type discharging valve.
In order to address the above problem, plunger type discharging valve of the present utility model is by the following technical solutions: the plunger type discharging valve, comprise valve body, spool and valve rod, valve body has medium channel, the import of medium channel is positioned at the valve body top, its outlet is positioned on the perisporium of valve body, spool is arranged in medium channel and cooperates with the inlet seal of medium channel, be equipped with the O RunddichtringO that the outer circumferential face with spool is sealed and matched in the valve body, also be equipped with the interfacial seal circle that the outer circumferential face with spool is sealed and matched in the valve body, described interfacial seal circle is positioned at the below of O RunddichtringO.
Described interfacial seal circle is y-type seal ring.
Valve body comprise active section, fixedly be assemblied in the lever piece of active section lower end and be fitted in active section and lever piece between seal ring, described medium channel is arranged in active section, valve rod is assemblied on the lever piece, and O RunddichtringO and interfacial seal circle all are assemblied on the seal ring.
The lever piece of valve body from bottom to top be inserted in the active section and lever piece and active section between be connected by flange, the internal face of active section is provided with the step surface towards the below, seal ring is fitted between the upper-end surface of this step surface and lever piece.
Because plunger type discharging valve of the present utility model is equipped with described interfacial seal circle in its valve body, and the interfacial seal circle is positioned at the place, below of O RunddichtringO, therefore in the process of using, can be by the interfacial seal circle that downside and the external environment of O RunddichtringO is isolated, slow down the damage process of O RunddichtringO, meanwhile, after the O RunddichtringO is corroded damage, the interfacial seal circle also can be taken over the work of O RunddichtringO in the certain hour section, realize being sealed and matched between spool and the valve body, thereby avoid leakage problem to occur, this shows that plunger type discharging valve of the present utility model solves and showed the problem that the plunger type discharging valve that has needs the frequent O of replacing RunddichtringO.
Further, adopt y-type seal ring can make the interfacial seal circle between the outer circumferential face of spool and valve body, form roof pressure power as the interfacial seal circle, when the interfacial seal circle partly weares and teares, can open and compensate for wear automatically by it; Because being sealed and matched except the O RunddichtringO between valve body and the spool, the matching part of valve body and spool, be cooperating between position and the spool at seal ring place to play crucial effects equally, O RunddichtringO and interfacial seal circle are located on the described seal ring and can in time carry out integral replacing to it when needed, guarantee the quality of fit at the sealing position between valve body and the spool.
Description of drawings
Fig. 1 is the embodiment's 1 of plunger type discharging valve of the present utility model structural representation.
Embodiment
The embodiment 1 of plunger type discharging valve of the present utility model, as shown in Figure 1, comprise valve body, spool 12 and valve rod 13, valve body comprises active section 111, fixedly be assemblied in the lever piece 112 of active section 111 lower ends and be fitted in active section 111 and lever piece 112 between seal ring 113, the lever piece 112 of valve body from bottom to top be inserted in the active section 111 and lever piece 112 and active section 111 between be connected by flange, also be provided with O-ring seal 14 between the outer circumferential face of the lever piece 112 of valve body and the inner peripheral surface of active section 111, the internal face of active section 111 is provided with the step surface towards the below, in the present embodiment, this step surface is by forming to the downside of projecting inward annular retaining along 114 from the internal face of active section 111, seal ring 113 is fitted between the upper-end surface of this step surface and lever piece 112, simultaneously, be provided with side face seal ring 15 between the internal face of the outer circumferential face of seal ring 113 and the active section of valve body 111, be pressed with sealing gasket 16 between the upper-end surface of the lower end surface of seal ring 113 and the lever piece of valve body 112, be provided with medium channel in the active section 111 of valve body, medium channel has import 17 and outlet 18, wherein import 17 is positioned at the top of valve body, outlet 18 is positioned on the perisporium of valve body, spool 12 is arranged in medium channel and is sealed and matched with the import 17 of medium channel, valve rod 13 be assemblied in by screw thread on the lever piece 112 of valve body and and the lever piece 112 of valve body between form screw-nut body, spool 12 and valve rod 13 axial anticreeps link together and the two between can relatively rotate, when rotation valve rod 13, valve rod 13 can drive spool 12 and move up and down, thereby shutoff or the import 17 of opening medium channel, in addition, be equipped with the O RunddichtringO 19 that the outer circumferential face with spool 12 is sealed and matched and the interfacial seal circle 20 that is positioned at O RunddichtringO 19 belows in the valve body, in the present embodiment, O RunddichtringO 19 and interfacial seal circle 20 all are assemblied on the seal ring 113, O RunddichtringO 19 is positioned at the outlet below of medium channel, interfacial seal circle 20 adopts y-type seal ring, it is used for the downside of O RunddichtringO 19 and external environment isolated on the one hand, slow down the damage process of O RunddichtringO 19, on the other hand can be after O RunddichtringO 19 be corroded damage, in the certain hour section, take over the work of O RunddichtringO 19, realize being sealed and matched between spool 12 and the valve body, thereby avoid leakage problem to occur.
In other embodiment of plunger type discharging valve of the present utility model, the valve body described in above-described embodiment 1 can also only be made of lever piece and active section, in such cases, can according to circumstances O RunddichtringO and interfacial seal circle be assemblied on active section or the lever piece; Described interfacial seal circle can also adopt O RunddichtringO etc.
Claims (4)
1. plunger type discharging valve, comprise valve body, spool and valve rod, valve body has medium channel, the import of medium channel is positioned at the valve body top, and its outlet is positioned on the perisporium of valve body, and spool is arranged in medium channel and cooperates with the inlet seal of medium channel, be equipped with the O RunddichtringO that the outer circumferential face with spool is sealed and matched in the valve body, it is characterized in that also be equipped with the interfacial seal circle that the outer circumferential face with spool is sealed and matched in the valve body, described interfacial seal circle is positioned at the below of O RunddichtringO.
2. plunger type discharging valve according to claim 1 is characterized in that, described interfacial seal circle is y-type seal ring.
3. plunger type discharging valve according to claim 1, it is characterized in that, valve body comprise active section, fixedly be assemblied in the lever piece of active section lower end and be fitted in active section and lever piece between seal ring, described medium channel is arranged in active section, valve rod is assemblied on the lever piece, and O RunddichtringO and interfacial seal circle all are assemblied on the seal ring.
4. plunger type discharging valve according to claim 3, it is characterized in that, the lever piece of valve body from bottom to top be inserted in the active section and lever piece and active section between be connected by flange, the internal face of active section is provided with the step surface towards the below, and seal ring is fitted between the upper-end surface of this step surface and lever piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639149 CN203051781U (en) | 2012-11-28 | 2012-11-28 | Plunger type discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220639149 CN203051781U (en) | 2012-11-28 | 2012-11-28 | Plunger type discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051781U true CN203051781U (en) | 2013-07-10 |
Family
ID=48734735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220639149 Expired - Fee Related CN203051781U (en) | 2012-11-28 | 2012-11-28 | Plunger type discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051781U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985706A (en) * | 2019-12-25 | 2020-04-10 | 扬州永锋工业设备安装有限公司 | Horizontal novel automatic baiting valve |
| CN112682527A (en) * | 2020-12-30 | 2021-04-20 | 天华化工机械及自动化研究设计院有限公司 | Axe bottom discharge valve |
-
2012
- 2012-11-28 CN CN 201220639149 patent/CN203051781U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985706A (en) * | 2019-12-25 | 2020-04-10 | 扬州永锋工业设备安装有限公司 | Horizontal novel automatic baiting valve |
| CN112682527A (en) * | 2020-12-30 | 2021-04-20 | 天华化工机械及自动化研究设计院有限公司 | Axe bottom discharge valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20131128 |