CN203146854U - Valve structure capable of preventing sealing face from being washed - Google Patents
Valve structure capable of preventing sealing face from being washed Download PDFInfo
- Publication number
- CN203146854U CN203146854U CN 201320125076 CN201320125076U CN203146854U CN 203146854 U CN203146854 U CN 203146854U CN 201320125076 CN201320125076 CN 201320125076 CN 201320125076 U CN201320125076 U CN 201320125076U CN 203146854 U CN203146854 U CN 203146854U
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- valve
- spool
- valve core
- sealing surface
- groove
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Abstract
The utility model relates to a valve structure capable of preventing a sealing face from being washed. The valve structure comprises a valve core (2), a valve seat (1) and a flow sleeve (3), wherein the valve core (2) and the valve seat (1) are contacted through the sealing face when a valve is closed, the flow sleeve (3) is arranged on the outer side of the valve core (2), the bottom of the flow sleeve (3) is fixed on the valve seat (1), a protection cover (5) for preventing fluid from washing the sealing face (6) of the valve core is arranged on the valve core (2), the protection cover (5) downwards extends to cover an annular protrusion of the sealing face (6) of the valve core, an avoiding groove (8) is formed in the valve seat (1), and the avoiding groove (8) corresponds to the annular protrusion to accommodate the protection cover (5) when a valve body is closed. The valve structure can prevent vapor from directly washing the sealing face of the valve core so as to prevent the valve core from being damaged and prolong service life of the valve core.
Description
Technical field
The utility model relates to valve, specially refers to a kind of spool that prevents and receives the valve mechanism that carbonated drink is washed away.
Background technique
In applications such as power station, have a large amount of carbonated drink conveyance conduits, and also be provided with a large amount of valves.Ducted high hot water vapor is in transmission course; can form valve and wash away and cause damage; therefore; must take measures to avoid directly washing away; especially the sealing surface in the valve; the sealing of valve closely contacts to finish with the base sealing surface by valve core sealed cover, and the valve opening fluid by the time can directly wash away valve core sealed cover, therefore protecting valve core sealed cover is a major issue of valve protection.
Above-mentioned valve,, can produce valve sealing face and wash away because medium exists two phase flow and other impurity through out-of-date at fluid.In order to control the flow of fluid, engineers has designed the flow sleeve in the spool outside, can control flow on the one hand, can avoid steam directly to wash away valve core sealed cover on the other hand.According to above-mentioned valve mechanism, there is rough groove in case understand after sealing surface is washed away in valve sealing structure of the prior art at valve core sealed cover as shown in Figure 1.Like this, when valve need be closed, because the existence of groove, valve can be in leak condition all the time.What is more, and valve has influence on the performance of closing of valve greatly in case leakage can make leakage rate more and more under the pressure of medium.
Summary of the invention
Of the present utility model in the face of being to overcome the deficiency that above-mentioned prior art exists, a kind of valve mechanism of new structure type is provided.Valve mechanism of the present utility model is wanted to prevent that valve is subjected to directly washing away of carbonated drink, the sealing surface of protection spool, thus the protection spool is not damaged, and improves the working life of valve.
In order to reach the foregoing invention purpose, the technical elements that the utility model provides is as follows:
A kind of valve mechanism that prevents that sealing surface from being washed away, include spool in this valve mechanism, valve seat and flow sleeve, contact by sealing surface between described spool and the valve seat, be provided with the flow sleeve in the spool outside, the bottom of this flow sleeve is fixed on the described valve seat, it is characterized in that, described spool is provided with in order to prevent the protective housing of fluid scouring, this protective housing is located at the outside of valve core sealed cover, this protective housing is for extending to cover the annular protrusion of described valve core sealed cover downwards, be provided with at described valve seat and dodge groove, annular design to dodge groove corresponding to annular protrusion to hold described protective housing.
Prevent that of the present utility model described flow sleeve is provided with a plurality of metering orifices in the valve mechanism that sealing surface washed away, described metering orifice is arranged in the move distance of described spool.
Prevent in the valve mechanism that sealing surface washed away of the present utility model, described protective housing or on the spool directly machining go out or be installed in again on the described spool for machining.
Prevent that of the present utility model the described groove of dodging is the groove of annular in the valve mechanism that sealing surface washed away, this groove is positioned at the outside of valve seat upper valve base sealing surface, and the Inner Dimension of described groove is greater than the outside dimensions of annular protrusion.
Based on technique scheme, valve mechanism of the present utility model is compared with the valve mechanism of prior art has following technological merit:
Valve mechanism of the present utility model has designed a safeguard structure at spool and has protected valve core sealed cover; avoid it to be subjected to directly washing away of high temperature carbonated drink; thereby the protection valve core sealed cover is damaged, and also just can prolong the service time of spool, the working life of just having improved whole valve.On the specific design of safety cover, it is produced on the spool; be in the outside of valve core sealed cover; do not influence the use of whole spool and can protect valve core sealed cover effectively; in order not influence spool and valve base sealing closure; design annular groove at valve seat and held safety cover; and groove size is larger than the size of safety cover, makes that the two can hold fully when using.
Description of drawings
Fig. 1 is valve mechanism schematic representation of the prior art.
Fig. 2 is that the utility model prevents the valve mechanism schematic representation that sealing surface is washed away.
Embodiment
Below we come valve mechanism of the present utility model done further with specific embodiment by reference to the accompanying drawings and elaborate; form and workflow in the hope of understand structure of the present utility model more cheer and brightly, but can not limit protection domain of the present utility model with this.
Please see Figure 2, Fig. 2 is that the utility model prevents the valve mechanism schematic representation that sealing surface is washed away.As seen from the figure, include spool 2, valve seat 1 and flow sleeve 3 in the valve mechanism of the present utility model.Be provided with valve core sealed cover 6 at spool 2, valve seat 1 is provided with sealing surface of seat 7, and when the needs throttle down, valve core sealed cover 6 closely contacts and realizes sealing with sealing surface of seat 7.
And being provided with flow sleeve 3 in the outside of described spool 2, the bottom of this flow sleeve 3 is fixed on the described valve seat 1.Be provided with a plurality of metering orifices 4 at described flow sleeve 3; described metering orifice 4 is arranged in the move distance of described spool 2; the outside high pressure carbonated drink that comprises enters in spool 2 and the valve seat 1 by the metering orifice 4 on the flow sleeve 3 earlier at the inner fluid medium; alleviate the strength that it directly washes away; the effect of protection spool; but its effect is limited, often can not protect valve core sealed cover 6 well.
As important innovations point of the present utility model, be provided with a protective housing 5 at described spool 2, this protective housing 5 is in order to prevent fluid scouring valve core sealed cover 6.Aspect structural design, protective housing 5 is located at the outside of described valve core sealed cover 6, and protective housing 5 is for extending to cover the annular protrusion of described valve core sealed cover 6 downwards on form.
In order not influence spool 2 and valve seat 1 closure, be provided with at described valve seat 1 and dodge groove 8, dodging groove 8 is the groove of an annular in form, this groove is positioned at the outside of valve seat 1 upper valve base sealing surface 7, and the Inner Dimension of groove is greater than the outside dimensions of annular protrusion, corresponding mutually with annular protrusion position and character to accomplish dodging groove 8, the design of dodging groove 8 is in order to hold protective housing 5 when the valve closing.
When application in practice, described protective housing 5 can be directly produced by mach mode on spool 2, also can be earlier protective housing 5 to be machined in advance, and then be installed on the described spool 2.Its final form all is the outside that is positioned at valve core sealed cover, plays the effect of avoiding carbonated drink directly to wash away valve core sealed cover.
Valve mechanism of the present utility model is protected valve core sealed cover by designed a safeguard structure at spool, avoids it to be subjected to directly washing away of high temperature carbonated drink, thereby the protection valve core sealed cover is damaged.Other are apparent from the designed similar structure of coming out of this thought for those skilled in the art, so also can not break away from protection domain of the present utility model.
Claims (4)
1. valve mechanism that prevents that sealing surface from being washed away, include spool (2) in this valve mechanism, valve seat (1) and flow sleeve (3), when throttle down, contact by sealing surface between described spool (2) and the valve seat (1), be provided with flow sleeve (3) in the outside of described spool (2), the bottom of this flow sleeve (3) is fixed on the described valve seat (1), it is characterized in that, be provided with protective housing (5) in order to prevent fluid scouring valve core sealed cover (6) at described spool (2), this protective housing (5) is located at the outside of described valve core sealed cover (6), this protective housing (5) is for extending to cover the annular protrusion of described valve core sealed cover (6) downwards, be provided with at described valve seat (1) and dodge groove (8), the described groove (8) of dodging is corresponding to annular protrusion to hold described protective housing (5) when valve body is closed.
2. a kind of valve mechanism that prevents that sealing surface from being washed away according to claim 1 is characterized in that, is provided with a plurality of metering orifices (4) at described flow sleeve (3), and described metering orifice (4) is arranged in the move distance of described spool (2).
3. a kind of valve mechanism that prevents that sealing surface from being washed away according to claim 1 is characterized in that, described protective housing (5) or go up direct machining for spool (2) and go out or be installed on the described spool (2) for machining again.
4. a kind of valve mechanism that prevents that sealing surface from being washed away according to claim 1, it is characterized in that, the described groove (8) of dodging is the groove of annular, this groove is positioned at the outside of valve seat (1) upper valve base sealing surface (7), and the Inner Dimension of described groove is greater than the outside dimensions of annular protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125076 CN203146854U (en) | 2013-03-19 | 2013-03-19 | Valve structure capable of preventing sealing face from being washed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320125076 CN203146854U (en) | 2013-03-19 | 2013-03-19 | Valve structure capable of preventing sealing face from being washed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146854U true CN203146854U (en) | 2013-08-21 |
Family
ID=48974378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320125076 Expired - Fee Related CN203146854U (en) | 2013-03-19 | 2013-03-19 | Valve structure capable of preventing sealing face from being washed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146854U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565405A (en) * | 2015-01-23 | 2015-04-29 | 吴振庭 | Valve seal protection device |
| CN104595508A (en) * | 2015-01-23 | 2015-05-06 | 吴振庭 | Valve sealing device |
| CN106168304A (en) * | 2015-05-18 | 2016-11-30 | 株式会社不二工机 | Motor-driven valve |
-
2013
- 2013-03-19 CN CN 201320125076 patent/CN203146854U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565405A (en) * | 2015-01-23 | 2015-04-29 | 吴振庭 | Valve seal protection device |
| CN104595508A (en) * | 2015-01-23 | 2015-05-06 | 吴振庭 | Valve sealing device |
| CN106168304A (en) * | 2015-05-18 | 2016-11-30 | 株式会社不二工机 | Motor-driven valve |
| CN106168304B (en) * | 2015-05-18 | 2020-05-12 | 株式会社不二工机 | Electric valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181123 Address after: 201316 No. 80-86, hang Du Road, barley Bay Industrial Zone, Pudong New Area, Shanghai. Patentee after: POWERCHINA SPEM COMPANY LIMITED Address before: 201200 4 and 5 buildings of No. 852 Chengfeng Road, Chuansha Town, Pudong New Area, Shanghai Patentee before: Shanghai Hua'erde Power Station Valve Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20210319 |