CN202392140U - Wear-resistant disc valve - Google Patents
Wear-resistant disc valve Download PDFInfo
- Publication number
- CN202392140U CN202392140U CN2011204565510U CN201120456551U CN202392140U CN 202392140 U CN202392140 U CN 202392140U CN 2011204565510 U CN2011204565510 U CN 2011204565510U CN 201120456551 U CN201120456551 U CN 201120456551U CN 202392140 U CN202392140 U CN 202392140U
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- flap
- clacks
- wear
- 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
Images
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model provides a wear-resistant disc valve. The purpose of the utility model is to solve the problem on how to ensure that the disc valve can fully meet the conditions of high medium granule rigidity and strong washout and corrosion effects. The wear-resistant disc valve comprises a valve cap, a valve body, a valve rod, a spool and valve clacks, the two valve clacks are fastened with both ends of the spool, the stressed contact surfaces of the spool and the valve clacks are not on the central lines of the bodies of the valve clacks, the spool and the valve clacks are formed into an eccentric stressed structure, and the spool is driven by the valve rod to apply upward or downward force on the valve clacks, so that torque is generated. High-rigidity alloy NiCr-Cr3C2 is spray-welded on the sealing surfaces of the valve clacks, and a Stellit alloy sealing surface is surfaced on the valve cap; and since the spool and the valve clacks are formed into the eccentric stressed structure, as the valve rod lifts the spool up and down, the valve clacks circularly move within a small range to have a grinding effect. The wear-resistant disc valve with a simple structure can fully meet the conditions of high medium granule rigidity and strong washout and corrosion effects.
Description
Technical field
The utility model relates to the plate valve field, and the abrasion-proof disk valve of the working environment of the high hardness solid dielectric that a kind of this valve is exclusively used in strong erosion such as coal dust, silica flour, breeze, silica sand, abrasion is provided.
Background technique
At silica flour, the coal dust transfer line of industries such as organosilicon, coal gas, solid medium particle hardness is high, and valve is had strong erosion, the damage of abrasion.At present, these operating modes are selected hard seal ball valve usually for use, or the valve of other plate valve cored structure, because the structure of these products is not special in this operating mode design, can not guarantee long period safe operation under this operating mode.Common product has added very complicated structure, satisfies erosion and wearing and tearing and avoids media particle to pile up, but because of having increased a lot of optional features, costs an arm and a leg and can not effectively guarantee reliable operation.
The model utility content
The purpose of the utility model is to provide a kind of abrasion-proof disk valve of features simple structure, can fully satisfy the abrasion-proof disk valve of the strong operating mode of media particle hardness height, erosion and abrasive acrion.
The utility model is for realizing that above-mentioned purpose adopts following technological scheme:
A kind of abrasion-proof disk valve; Its composition comprises valve gap, valve body, valve rod, spool, flap; It is characterized in that: two flaps are buckled in the spool two ends; The stressed surface of contact of spool and flap is not on flap body center line, and spool and flap are formed the eccentric force structure, and valve rod drives the spool application of force up or down flap is formed torque.
The sealing surface of said flap adopts surfacing high hardness alloy NiCr-Cr3C2, and the Stellite alloy sealing surface of built-up welding is arranged on the said valve gap.
Said abrasion-proof disk valve also comprises spring and spring seat, and spring seat is set in the spool, and setting pressure spring on it makes spring seat push against flap.
The utlity model has following beneficial effect:
One, valve body sealing surface supersonic spray coating high hardness alloy NiCr-Cr
3C
2, hardness number HRC>=72, flap sealing surface weld deposit Stellite alloy; Hardness number HRC>=60; Can effectively resist erosion, abrasion, the scratch of high grit medium, and form the above difference of hardness of HRC10 between sealing pair, effectively avoid valve the pulling of sealing pair in switching process.
Two, valve is when the complete shut-down state, and the thrust of medium and the pressure of spring act on flap simultaneously, and the flap sealing surface is close on the valve body sealing surface, thereby realizes reliable sealing; In the process of valve at Kai Heguan, have only the pressure of spring to act on the flap, reduce the positive pressure of sealing pair greatly, thereby reduced the friction between sealing pair, reduced the abrasion of valve.Simultaneously, because the effect of spring, flap is fitted on the valve bonnet seal face at any time, stops media particle and gets between the sealing pair.
Three, spool and flap are formed eccentric force mechanism, and valve rod and spool are rigidly connected, and promote flap when driving valve, depress flap when closing valve; But point of contact is not in the body peak or the minimum point of flap; The center of effort's line that is flap is not on the body center line of flap, and flap also forms certain torque except that the linarity power that is promoted/fall; When being moved up and down, flap can do rotation (as shown in Figure 3) among a small circle in switching process; Formation is to the self-grind of sealing surface, and the scratch of sealing surface and uneven frequent switch along with valve are polished, and guarantees that valve is long-term to keep good sealing effect.
Description of drawings
Fig. 1 is the structural drawing of the utility model;
Fig. 2 is the structure partial enlarged view of the utility model;
Fig. 3 is the stressed schematic representation of the utility model flap and spool;
Stressed schematic representation when Fig. 4 moves up for the utility model flap between spool and flap;
1 is that spring seat, 2 is that valve rod, 3 is that spool, 4 is that pressure spring, 5 is flap, 6 valve gaps, 7 valve bodies, 8 gasket seals among the figure.
Embodiment
As shown in Figure 1, the utility model abrasion-proof disk valve comprises valve body 7, valve gap 6 (2 every), flap 5 (2 on every valve), spool 3, spring 4 (2 on every valve), spring seat 1 (2 on every valve), valve rod 2, gasket seal 8 parts such as (2 on every valves).
The sealing surface supersonic speed surfacing high hardness alloy NiCr-Cr of valve gap 6
3C
2, hardness number HRC>=72, flap 5 sealing surface weld deposit Stellite alloys, erosion, abrasion, the scratch of high grit medium can effectively be resisted in hardness number HRC>=60.
Valve is when the complete shut-down state, and the pressure of the thrust of medium and pressure spring 4 acts on flap 5 simultaneously, and flap 5 sealing surfaces are close on the sealing surface of valve gap 6, thereby realizes reliable sealing; In the process of valve at Kai Heguan, have only the pressure of pressure spring 4 to act on the flap 5, reduce the positive pressure of sealing pair greatly, thereby reduced the friction between sealing pair, reduced the abrasion of valve.
The force urges flap 5 of pressure spring 4 is pressed on the sealing surface of valve gap 6 at any time, and no matter valve is closing still open stage, guarantees that can not get into medium between sealing pair brings unexpected wearing and tearing.
As shown in Figure 3, the power transmission contact segment of spool 3 and flap 5, particular design is non-positive toroidal.Valve rod 2 is rigidly connected with spool 3; Promote flap 5 when driving valve, depress flap 5 when closing valve, but the contact that connects spool 3 is in the body peak or the minimum point of flap 5, promptly center of effort's line of flap 5 is not on the body center line of flap 5; Flap 5 is except that the linarity power that is promoted/fall; Also form certain torque, can do rotation (as shown in Figure 3) among a small circle when flap 5 is moved up and down in switching process, the self-grind that forms sealing surface with valve gap 6; The scratch and the uneven frequent switch along with valve of sealing surface are polished, guarantee that valve is long-term and keep good sealing effect.
Claims (3)
1. abrasion-proof disk valve; Its composition comprises valve gap, valve body, valve rod, spool, flap; It is characterized in that: two flaps are buckled in the spool two ends; The stressed surface of contact of spool and flap is not on flap body center line, and spool and flap are formed the eccentric force structure, and valve rod drives the spool application of force up or down flap is formed torque.
2. abrasion-proof disk valve according to claim 1 is characterized in that: the sealing surface of said flap adopts surfacing high hardness alloy NiCr-Cr3C2, and the Stellite alloy sealing surface of built-up welding is arranged on the said valve gap.
3. abrasion-proof disk valve according to claim 1 is characterized in that: also comprise spring and spring seat, spring seat is set in the spool, setting pressure spring on it makes spring seat push against flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204565510U CN202392140U (en) | 2011-11-17 | 2011-11-17 | Wear-resistant disc valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204565510U CN202392140U (en) | 2011-11-17 | 2011-11-17 | Wear-resistant disc valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392140U true CN202392140U (en) | 2012-08-22 |
Family
ID=46667067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204565510U Expired - Lifetime CN202392140U (en) | 2011-11-17 | 2011-11-17 | Wear-resistant disc valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838358A (en) * | 2017-03-07 | 2017-06-13 | 许成伟 | Direct acting rotates self-grind disc valve |
| CN108825807A (en) * | 2018-08-30 | 2018-11-16 | 上海凯科阀门制造有限公司 | A kind of rotation self-grind spool gate valve |
-
2011
- 2011-11-17 CN CN2011204565510U patent/CN202392140U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838358A (en) * | 2017-03-07 | 2017-06-13 | 许成伟 | Direct acting rotates self-grind disc valve |
| CN108825807A (en) * | 2018-08-30 | 2018-11-16 | 上海凯科阀门制造有限公司 | A kind of rotation self-grind spool gate valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102575780B (en) | Multi-seal Knife Gate Valve | |
| CN202392140U (en) | Wear-resistant disc valve | |
| CN203847747U (en) | High-performance C-shaped abrasion-resistant ball valve | |
| CN203560458U (en) | Y-shaped coking valve | |
| CN111963706A (en) | Novel wear-resistant round rotary valve | |
| CN201420869Y (en) | Pneumatic rotating disc valve | |
| CN202884096U (en) | Wear-resisting ball valve | |
| CN201787116U (en) | Split type hard seal plug valve | |
| CN204592373U (en) | High frequency wear resistance ball valve | |
| CN204755944U (en) | High temperature triple offset butterfly valve structure | |
| CN202629125U (en) | Wear-resistant sliding-plate valve | |
| CN202280858U (en) | Super-abrasion-resisting sliding plate valve | |
| CN204533758U (en) | A kind of coating ceramic compound valve rod | |
| CN102720852A (en) | Wear-resistant sliding-plate valve | |
| CN201973260U (en) | Special valve for chlorine gas | |
| CN104913077A (en) | Wear-resistant ball valve | |
| CN205013737U (en) | High leakproofness ability ball valve | |
| CN105605237B (en) | Anti-blocking and anti-blocking disc valve | |
| CN201715019U (en) | Sealed ball valve | |
| CN202082419U (en) | Spherical valve | |
| CN203857074U (en) | Wear-resisting ball valve bed shaft anti-jamming structure | |
| CN201715006U (en) | Opening-closing valve | |
| CN201582430U (en) | Damping ball valve | |
| CN204312740U (en) | Blade type abrasion-proof slag-discharging valve | |
| CN201386807Y (en) | Gate valve for lithification |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |