CN204533593U - Valve seal protective equipment - Google Patents
Valve seal protective equipment Download PDFInfo
- Publication number
- CN204533593U CN204533593U CN201520047072.1U CN201520047072U CN204533593U CN 204533593 U CN204533593 U CN 204533593U CN 201520047072 U CN201520047072 U CN 201520047072U CN 204533593 U CN204533593 U CN 204533593U
- Authority
- CN
- China
- Prior art keywords
- valve
- base
- spool
- protective equipment
- sealed cover
- 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
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Abstract
The utility model discloses a kind of valve seal protective equipment, the wherein valve valve cage that comprises base, be arranged on the spool on base and be located on spool and base, the sidewall of valve cage offers multiple metering orifice, and the bottom of spool has the valve core sealed cover of inclination.Described valve seal protective equipment comprises the protective housing that is arranged on spool bottom and is arranged on the groove on base, and protective housing can be housed in groove and to be arranged on the outside of valve core sealed cover, and valve cage is provided with the breach that simultaneously can hold valve core sealed cover and protective housing.The valve seal protective equipment of this improvement, it guarantees that the sealability of valve is better, and economizes on resources, and reduces manufacturing cost.
Description
Technical field
The utility model relates to a kind of valve seal protective equipment.
Background technique
Power plant valve, is mainly applicable on the pipeline of the various system of power plant, cuts off or connects pipeline medium, as power plant desulphurization system, ash disposal system, is applicable to the conveying of the media such as water, steam, grey dreg slurry, dry powder.The feature of power plant valve compared with other valve products is high temperature high voltage resistant, and have unique selfsealings design, and pressure is higher, sealability is more reliable.Due to performance technologies characteristic, operating mode special make product also form other products the feature that do not substitute.
The valve cage that valve generally includes fixed base, is arranged on the spool on base and is located on spool and base, the sidewall of valve cage is provided with multiple flow through hole to be passed through to allow the media such as steam.Spool and base are respectively equipped with the sealing surface mutually connected, and sealing face is generally plane of inclination, and such steam is easy this plane of inclination of erosion after metering orifice, thus causes the sealing between sealing surface to be deteriorated, and causes the bad leakage caused of valve closing.
Model utility content
The purpose of this utility model is, for above-mentioned defect of the prior art, to provide a kind of valve seal protective equipment of improvement, and it guarantees that the sealability of valve is better, and economizes on resources, and reduces manufacturing cost.
For realizing above-mentioned model utility object, the utility model have employed following technological scheme: a kind of valve seal protective equipment, wherein valve comprises base, the valve cage being arranged on the spool on base and being located on spool and base, the sidewall of valve cage offers multiple metering orifice, the bottom of spool has the valve core sealed cover of inclination, it is characterized in that: described valve seal protective equipment comprises the protective housing being arranged on spool bottom and the groove be arranged on base, protective housing can be housed in groove and to be arranged on the outside of valve core sealed cover, valve cage is provided with the breach that simultaneously can hold valve core sealed cover and protective housing.
In addition, the utility model also proposes following attached technological scheme:
Protective housing one extends in the periphery of spool bottom downwards.
Protective housing is mutually concordant with the bottom surface of spool, and in the vertical direction is consistent with the height of valve core sealed cover.
On the sidewall that breach is opened in valve cage and near the position of metering orifice.
Protective housing and groove are ring-type.
The top of base is provided with the base seal face mutually adaptive with valve core sealed cover.
Sealing is provided with between valve cage and base.
Compared to prior art, the utility model has the advantage of: the valve seal protective equipment that it provides, be provided with protective housing in the outside of valve core sealed cover and on base, be provided with the groove of this protective housing of collecting, which prevent the consequence that the medium through metering orifice brings sealing effect bad to the direct erosion of valve core sealed cover; And this valve seal protective equipment is directly reequiped on existing valve basis, without the need to redesigning and manufacturing valve, economize on resources, reduce manufacturing cost.
Accompanying drawing explanation
Fig. 1 corresponds to the valve of the utility model preferred embodiment and the plane view of sealing protective device thereof.
Embodiment
Below in conjunction with preferred embodiment and accompanying drawing thereof, technical solutions of the utility model are further non-limitingly described in detail.
With reference to Fig. 1, a kind of valve, especially power plant valve, roughly have axially symmetric structure, it valve cage 5 comprising base 1, be arranged on the spool 3 on base 1 and be located on spool 3 and base 1.Spool 3 is driven by valve rod 2 and carries out moving up and down with by valve open or closedown relative to base 1.The sidewall 4 of valve cage 5 offers multiple metering orifice 6 to pass through with media such as water supply, steam.When spool 3 moves up and down, corresponding metering orifice 6 can be carried out airtight or opens, thus regulate the rate-of flow entering valve internal according to actual needs.
The bottom periphery of above-mentioned spool 3 is provided with valve core sealed cover 8, and this valve core sealed cover 8 is plane of inclination.And the periphery of base 1 inner chamber 10 is provided with base seal face 12, this base seal face 12 is the plane of inclination suitable with valve core sealed cover 8, like this when spool 3 is complete and base 1 connects mutually, the mutual close contact of above-mentioned two sealing surfaces 8,12 and adaptation, thus spool 3 and base 1 are sealed completely and close.
Because above-mentioned valve core sealed cover 8 is towards the plane of inclination of metering orifice 6, so through the medium easy erosion sealing face 8 such as steam of metering orifice 6, thus cause the poor sealing between spool 3 and base 1.Given this, the utility model provides a kind of valve seal protective equipment, it comprises the protective housing 14 be arranged on outside valve core sealed cover 8, this protective housing 14 is extend straight down from the Basolateral of spool 3, and in the vertical direction is mutually concordant with the bottom surface 16 of spool 3, and in the vertical direction is consistent with the height of valve core sealed cover 8, so that in the horizontal direction can completely blocking medium to the erosion of sealing surface 8, this avoid the consequence that between spool 3 and base 1, sealing effect is bad, namely avoid valve leaks accident.This protective housing 14 is located at the outside of valve core sealed cover 8, is roughly annular projection, and one-body molded with spool 3.Above-mentioned valve seal protective equipment also comprises the groove 16 on the top being arranged on base 1, and this groove 16 is also annular recess, can be matched with above-mentioned protective housing 14.
In addition, the sidewall 4 of above-mentioned valve cage 5 forms breach 18, and this breach 18 is opened in the inner side of sidewall 4 and the position of close metering orifice 6, with the sealing surface 8 holding spool 3 and the protective housing 14 be formed in outside sealing surface 8 simultaneously.Like this, even if existing power plant valve, the utility model only needs to carry out installing protective housing 14 additional and offering groove 16 on existing spool 3 and base 1, and on the sidewall 4 of existing valve cage 5, adds gap 18 to hold the protective housing 14 installed additional, and without the need to reducing the size of existing base 1 and spool 3, like this, ensure that the rate-of flow of the metering orifice 6 by valve cage 5 is constant on the one hand, on the other hand, without the need to redesigning and manufacturing valve, save resource, reduce manufacturing cost.
It is to be noted; above-mentioned preferred embodiment is only and technical conceive of the present utility model and feature is described; its object is to person skilled in the art can be understood content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (7)
1. a valve seal protective equipment, the wherein valve valve cage that comprises base, be arranged on the spool on base and be located on spool and base, the sidewall of valve cage offers multiple metering orifice, the bottom of spool has the valve core sealed cover of inclination, it is characterized in that: described valve seal protective equipment comprises the protective housing being arranged on spool bottom and the groove be arranged on base, protective housing can be housed in groove and to be arranged on the outside of valve core sealed cover, and valve cage is provided with the breach that simultaneously can hold valve core sealed cover and protective housing.
2. valve seal protective equipment according to claim 1, is characterized in that: protective housing one extends in the periphery of spool bottom downwards.
3. valve seal protective equipment according to claim 2, it is characterized in that: protective housing is mutually concordant with the bottom surface of spool, and in the vertical direction is consistent with the height of valve core sealed cover.
4. valve seal protective equipment according to claim 1, is characterized in that: on the sidewall that breach is opened in valve cage and near the position of metering orifice.
5. valve seal protective equipment according to claim 1, is characterized in that: protective housing and groove are ring-type.
6. valve seal protective equipment according to claim 1, is characterized in that: the top of base is provided with the base seal face mutually adaptive with valve core sealed cover.
7. valve seal protective equipment according to claim 1, is characterized in that: be provided with Sealing between valve cage and base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047072.1U CN204533593U (en) | 2015-01-23 | 2015-01-23 | Valve seal protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047072.1U CN204533593U (en) | 2015-01-23 | 2015-01-23 | Valve seal protective equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533593U true CN204533593U (en) | 2015-08-05 |
Family
ID=53747602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520047072.1U Expired - Fee Related CN204533593U (en) | 2015-01-23 | 2015-01-23 | Valve seal protective equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565405A (en) * | 2015-01-23 | 2015-04-29 | 吴振庭 | Valve seal protection device |
-
2015
- 2015-01-23 CN CN201520047072.1U patent/CN204533593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565405A (en) * | 2015-01-23 | 2015-04-29 | 吴振庭 | Valve seal protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20220123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |