CN202302051U - Super-high pressure conical valve specific for coal slurry - Google Patents
Super-high pressure conical valve specific for coal slurry Download PDFInfo
- Publication number
- CN202302051U CN202302051U CN2011203729852U CN201120372985U CN202302051U CN 202302051 U CN202302051 U CN 202302051U CN 2011203729852 U CN2011203729852 U CN 2011203729852U CN 201120372985 U CN201120372985 U CN 201120372985U CN 202302051 U CN202302051 U CN 202302051U
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- China
- Prior art keywords
- valve
- valve seat
- stuffing box
- situated
- spheroid
- 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
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Abstract
The utility model discloses a super-high pressure conical valve specific for coal slurry. The super-high pressure conical valve comprises a valve body, a valve cover, a support ring, a left valve seat, a ball body, a valve stem, a right valve seat, a stuffing box and a gland, wherein the valve cover is fixed with a valve body through at least one bolt, the support ring is situated between the left valve seat and the valve cover, the ball body is situated in a valve chamber formed by the valve body and the valve cover, the left and right valve seats are respectively situated at both sides of the ball body, the valve stem is vertically connected with the ball body, the stuffing box is situated on the valve body, and the gland is situated above the stuffing box. Fluid flowing speed and pressure can be changed through a valve chamber, and erosive wear of a valve seat can be minimized. Moreover, inner leakage of the valve can be effectively prevented.
Description
Technical field
The utility model relates to a kind of ultrahigh pressure mitre velve, the special-purpose ultrahigh pressure mitre velve of particularly a kind of coal slurry.
Background technique
The special-purpose ultrahigh pressure mitre velve of coal slurry is the metal hard-sealing valve with tapered channel.The special-purpose ultrahigh pressure mitre velve of coal slurry is generally used in the special valve of the pasty material transmission of industries such as chemical industry, is mainly used in the valve switch that coal tar oil installs pipes.Its main structure is installed by valve body, valve seat, spheroid, valve rod and sealing system and trim and is formed; Valve body is divided into left valve barrel and right valve barrel; Simultaneously, left and right sides valve seat is made respectively and big is small-borely contacted the ratio flow of assistant sphere control channel inner fluid in the valve opening and closing process with spheroid; Simultaneously, also play the effect of sealing.Spheroid should be for having the passage of certain taper by original put-through channel, do not change 1: 3 into by original 1: 1 flow cross during standard-sized sheet at valve body.At present, the subject matter that domestic metal hard-sealing ball valve exists is: valve is using a period of time valve seat can receive certain wearing and tearing, and it is more that particularly right valve seat receives washing away of medium.Cause the pretension sealing force between ball core and the valve seat to reduce, the sealability during valve closing between the sealing pair reduces, and interior leakage possibly appear in valve when serious.
The model utility content
The utility model technical problem to be solved provides the special-purpose ultrahigh pressure mitre velve of a kind of coal slurry, and it can reduce the erosive wear that valve seat receives, and has effectively prevented the situation of the interior leakage that valve occurs.
For solveing the technical problem; The utility model provides a kind of coal slurry special-purpose ultrahigh pressure mitre velve, it is characterized in that it comprises valve body, valve gap, support ring, left valve seat, spheroid, valve rod, right valve seat, stuffing box, gland; Valve gap is fixed through at least one bolt and valve body; Support ring is between left valve seat and valve gap, and spheroid is positioned at the valve pocket of valve body and valve gap formation, and left valve seat and right valve seat lay respectively at the both sides of spheroid; Valve rod is connected with spheroid is vertical, and stuffing box is positioned on the valve body, and gland is positioned at the top of stuffing box.
The positive progressive effect of the utility model is: the utility model can reduce the erosive wear that valve seat receives through the effect of valve pocket change flow rate of fluid and pressure, has effectively prevented the situation of the interior leakage that valve occurs.
Description of drawings
Fig. 1 is the structural representation of the special-purpose ultrahigh pressure mitre velve of the utility model coal slurry.
Embodiment
Lift a preferred embodiment below, and combine accompanying drawing to come the clearer the utility model of intactly explaining.
As shown in Figure 1; The special-purpose ultrahigh pressure mitre velve of the utility model coal slurry comprises valve body 1, valve gap 2, support ring 3, left valve seat 4, spheroid 5, valve rod 6, right valve seat 7, stuffing box 8, gland 9; Valve gap 2 is fixing through at least one bolt and valve body 1; Support ring 3 is between left valve seat 4 and valve gap 2, and spheroid 5 is positioned at the valve pocket of valve body 1 and valve gap 2 formation, and left valve seat 4 and right valve seat 7 lay respectively at the both sides of spheroid 5; Valve rod 6 and 5 vertical connections of spheroid, stuffing box 8 is positioned on the valve body 1, and gland 9 is positioned at the top of stuffing box 8.The stuffing box packing at valve handle activity position has teflon and graphite.The sealing surface of left side valve seat 4, right valve seat 7 and spheroid 5 is built-up welding and spraying titanizing tungsten alloy respectively, improves wear-resisting, the decay resistance of valve.The utility model can reduce the erosive wear that valve seat receives through the effect of valve pocket change flow rate of fluid and pressure, has effectively prevented the situation of the interior leakage that valve occurs, long service life.Valve inner pressure can change, but the pressure of valve two passwaies is constant, can not influence its working pressure demand.According to the bernoulli principle, because stagnation pressure is certain, when fluid-flow rate reduces, its pressure also reduces.Flow velocity and overflow section are long-pending to be inversely proportional to, so we are not difficult to learn that flow section is long-pending big, flow velocity is just little, and its pressure also can diminish.
Though more than described the embodiment of the utility model; But those skilled in the art is to be understood that; These only illustrate, and under the prerequisite of principle that does not deviate from the utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, the protection domain of the utility model is limited appended claims.
Claims (1)
1. the special-purpose ultrahigh pressure mitre velve of a coal slurry; It is characterized in that; It comprises valve body, valve gap, support ring, left valve seat, spheroid, valve rod, right valve seat, stuffing box, gland, and valve gap is fixed through at least one bolt and valve body, and support ring is between left valve seat and valve gap; Spheroid is positioned at the valve pocket of valve body and valve gap formation, and left valve seat and right valve seat lay respectively at the both sides of spheroid; Valve rod is connected with spheroid is vertical, and stuffing box is positioned on the valve body, and gland is positioned at the top of stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729852U CN202302051U (en) | 2011-09-30 | 2011-09-30 | Super-high pressure conical valve specific for coal slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203729852U CN202302051U (en) | 2011-09-30 | 2011-09-30 | Super-high pressure conical valve specific for coal slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302051U true CN202302051U (en) | 2012-07-04 |
Family
ID=46370949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203729852U Expired - Lifetime CN202302051U (en) | 2011-09-30 | 2011-09-30 | Super-high pressure conical valve specific for coal slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032597A (en) * | 2011-09-30 | 2013-04-10 | 上海纽京工业设备有限公司 | Special ultrahigh pressure cone valve for coal slurry |
-
2011
- 2011-09-30 CN CN2011203729852U patent/CN202302051U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032597A (en) * | 2011-09-30 | 2013-04-10 | 上海纽京工业设备有限公司 | Special ultrahigh pressure cone valve for coal slurry |
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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: 20120704 |
|
| CX01 | Expiry of patent term |