CN203500519U - Valve clack used for ammonia valve - Google Patents
Valve clack used for ammonia valve Download PDFInfo
- Publication number
- CN203500519U CN203500519U CN201320593481.2U CN201320593481U CN203500519U CN 203500519 U CN203500519 U CN 203500519U CN 201320593481 U CN201320593481 U CN 201320593481U CN 203500519 U CN203500519 U CN 203500519U
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- valve
- sealing
- convex surface
- flap
- valve body
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Abstract
The utility model relates to a valve clack used for an ammonia valve. The valve clack comprises a valve clack body fixed in the ammonia valve matched with the valve clack body, the ammonia valve comprises a valve body, a valve rod and a valve body sealing surface, the valve rod penetrates into the valve body and is connected with the valve clack body, a mesopore is disposed in the valve body, and the valve body sealing surface is fixed on an upper end surface of the mesopore. The valve clack is characterized in that an upper end of the valve clack body is fixed with the valve rod, the bottom of the valve clack body is provided with a sealing plate, an upper surface of the sealing plate is provided with inserting convex surfaces, the inserting convex surfaces are clamped into grooves disposed at the bottom of the valve clack body, and the inserting convex surfaces are fixed with the grooves and matched with the grooves; and a lower surface of the sealing plate is provided with sealing convex surfaces, the sealing convex surfaces are fixed on edges of the sealing plate and positioned on the valve body sealing surface, and the width of the sealing convex surfaces is larger than that of the valve body sealing surface. The valve clack is reasonable in structural design, good in leakproofness and reliable in connection, fastening screws are not required, the sealing surface is prevented from being corroded, and service lifetime is prolonged.
Description
Technical field
The utility model relates to a kind of flap, a kind of flap for ammonia valve particularly, and it is mainly applicable to the valve of the sealing configuration of ammonia, ammoniacal liquor.
Background technique
The structure of prior art is comprised of flap, built-up welding sealing surface.Built-up welding sealing surface is directly in the built-up welding of flap outer annular surface, forms sealing surface.This sealing surface generally adopts the metallic material built-up welding of high hardness to form, although be the sealing surface of high hardness because the fluids such as ammoniacal liquor and ammonia wash away and corrode its surface, sealing surface is also easy to be destroyed.
As shown in Figure 5, traditional flap comprises flap body 1 ' and valve clack sealing surface 2 ', and valve clack sealing surface 2 ' is annular, the general edge that adopts metal material built-up welding to be fixed on flap body 1 ' lower surface, be vulnerable to washing away and corroding of the fluids such as ammoniacal liquor and ammonia, sealing effect is poor, and working life is short.
Model utility content
The purpose of this utility model is to overcome present technology above shortcomings, and a kind of reasonable in design is provided, and sealing reliability is good, corrosion-resistant, the flap for ammonia valve of long service life.
The technical scheme in the invention for solving the above technical problem is: should be for the flap of ammonia valve, comprise flap body, described flap body is fixed in the ammonia valve matching with it, described ammonia valve comprises valve body, valve rod and valve body sealing surface, valve rod penetrates valve body and is connected with flap body, in described valve body, be provided with mesopore, described valve body sealing surface is fixed on mesopore upper-end surface, upper end and the valve rod of described flap body are fixed, the bottom of flap body is provided with sealing plate, sealing plate upper surface be provided with and inlay convex surface, inlaying convex surface snaps in and is arranged on the groove of flap body bottom and fixes with it, inlay convex surface and groove matches, sealing plate lower surface be provided with sealing convex surface, sealing convex surface be fixed on sealing plate edge, and be positioned on valve body sealing surface, the width of sealing convex surface is greater than the width of valve body sealing surface.In valve body, be provided with mesopore, the built-up welding of mesopore top edge is provided with valve body sealing surface, sealing plate is positioned on mesopore, the sealing convex surface at sealing plate edge is positioned on valve body sealing surface, both positions are corresponding, sealing convex surface and valve body sealing surface close contact, valve body sealing surface and sealing convex surface are loop configuration, its sealing convex surface Ring Width is greater than the Ring Width of valve body sealing surface, when throttle down, the sealing convex surface of flap can cover valve body sealing surface completely, guarantees sealing reliability, ammonia, ammoniacal liquor are difficult for leaking, good airproof performance.
The convex surface of inlaying described in the utility model is loop configuration with sealing convex surface the same.The convex surface of inlaying of annular makes sealing plate with stressed even between flap body, and fixing is between the two more firm.
The cross section of inlaying convex surface described in the utility model is for being inverted trapezium structure, and the upper surface of inlaying convex surface snaps in groove and fixes with it, inlays lower surface and the sealing plate of convex surface to fix, and the width of inlaying the upper surface of convex surface is greater than the width of lower surface.Sealing plate inlay narrow outer wide being inlaid in flap body in convex surface, sealing plate connects without fastening screw trip bolt with flap, once inlays connection, connects reliably, is difficult for departing from, thereby extends working life of flap between sealing plate and flap.
Sealing plate described in the utility model, inlay convex surface and sealing convex surface be fixed into one.Inlay convex surface and seal convex surface and can use mould once-through, without processing, directly use, convenient installation, saves processing charges.
Sealing plate described in the utility model, inlay convex surface and sealing convex surface be teflon material.Flap, valve body and valve body sealing surface material adopt metal as materials such as forged steel, cast steel and wldings.Polytetrafluoroethylmaterial material make sealing plate, seal convex surface and inlay convex surface not perishable under ammonia, ammoniacal liquor etc. washes away, extend working life of flap.
The utility model compared with prior art, has the following advantages and effect: simple in structure, reasonable in design, good airproof performance, connects reliably, without fastening screw trip bolt, can prevent that sealing surface from being corroded, and increases the service life.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is the structure for amplifying schematic diagram of A portion in Fig. 1.
Fig. 3 is the structural representation of flap body.
Fig. 4 be in Fig. 3 A-A to structural representation.
Fig. 5 is the structural representation of the flap of conventional art.
Label declaration: flap body 1, groove 11, sealing plate 2, inlay convex surface 21, sealing convex surface 22, edge 23, valve body sealing surface 3, valve body 4, mesopore 41, upper-end surface 42, valve rod 5.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, the utility model is described in further detail, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Referring to Fig. 1 to Fig. 4, the present embodiment comprises flap body 1, flap body 1 is fixed in the ammonia valve matching with it, described ammonia valve comprises valve body 4, valve rod 5 and valve body sealing surface 3, valve rod 5 penetrates valve body 4 and is connected with flap body 1, in valve body 4, be provided with mesopore 41, valve body sealing surface 3 is fixed on the upper-end surface 42 of mesopore 41, the upper end of flap body 1 and valve rod 5 are fixing, the bottom of flap body 1 is provided with sealing plate 2, the upper surface of sealing plate 2 is provided with inlays convex surface 21, inlaying convex surface 21 snaps in and is arranged on the groove 11 of flap body 1 bottom and fixes with it, inlaying convex surface 21 matches with groove 11, the lower surface of sealing plate 2 is provided with sealing convex surface 22, and sealing convex surface 22 is fixed on the edge 23 of sealing plate 2, and is positioned on valve body sealing surface 3, and the width R of sealing convex surface 22 is greater than the width r of valve body sealing surface 3.In valve body 4, be provided with mesopore 41, mesopore 41 edge built-up welding are provided with valve body sealing surface 3, and sealing plate 2 is positioned on mesopore 41, and the sealing convex surface 22 at sealing plate 2 edges 23 is positioned on valve body sealing surface 3, and both positions are corresponding, sealing convex surface 22 and valve body sealing surface 3 close contacts.Valve body sealing surface 3 and sealing convex surface 22 are loop configuration, and sealing convex surface 22 Ring Width R are greater than the Ring Width r of valve body sealing surface 3, and when throttle down, sealing convex surface 22 can cover valve body sealing surface 3 completely, guarantees the sealing effect of flap.
In the present embodiment, inlaying convex surface 21 is also loop configuration, the similar inverted trapezoidal structure in its cross-section, the upper surface of wherein inlaying convex surface 21 snaps in groove 11 and fixes with it, lower surface and the sealing plate 2 of inlaying convex surface 21 are fixing, and the width L2 that inlays the upper surface of convex surface 21 is greater than the width L1 of lower surface.Sealing plate 2 inlay interior narrow outer wide being inlaid in flap body 1 of convex surface 21, sealing plate 2 is connected without fastening screw trip bolt with flap body 1, once inlays connection, is connected firmly, and is difficult for departing from.
In the present embodiment, sealing plate 2, inlay convex surface 21 and sealing convex surface 22 be fixed into one.Inlay convex surface 21 and seal convex surface 22 and can use mould once-through.
In the present embodiment, sealing plate 2, inlay convex surface 21 and sealing convex surface 22 be teflon material.
During use, the inlaying in the groove 11 that convex surface 21 is embedded in flap body 1, without fastening screw trip bolt of sealing plate 2; When ammonia valve cuts out, the sealing convex surface 22 of flap body 1 bottom can be lived on valve body sealing surface 3 in full coverage, and the gap leakage that ammonia or ammoniacal liquor can not connect by both is gone out, good sealing effect.
In addition, it should be noted that, the specific embodiment described in this specification, the shape of its component, institute's title of being named etc. can be different, and the above content described in this specification is only to the explanation of the utility model structure example.All equivalence variation or simple change of doing according to described structure, feature and the principle of the utility model patent design, are included in the protection domain of the utility model patent.
Claims (5)
1. the flap for ammonia valve, comprise flap body, described flap body is fixed in the ammonia valve matching with it, described ammonia valve comprises valve body, valve rod and valve body sealing surface, valve rod penetrates valve body and is connected with flap body, in described valve body, be provided with mesopore, described valve body sealing surface is fixed on mesopore upper-end surface, it is characterized in that: upper end and the valve rod of described flap body are fixed, the bottom of flap body is provided with sealing plate, sealing plate upper surface be provided with and inlay convex surface, inlaying convex surface snaps in and is arranged on the groove of flap body bottom and fixes with it, inlay convex surface and groove matches, sealing plate lower surface be provided with sealing convex surface, sealing convex surface be fixed on sealing plate edge, and be positioned on valve body sealing surface, the width of sealing convex surface is greater than the width of valve body sealing surface.
2. the flap for ammonia valve according to claim 1, is characterized in that: described inlaying convex surface and seal convex surface is loop configuration.
3. the flap for ammonia valve according to claim 1 and 2, it is characterized in that: described in inlay convex surface cross section for being inverted trapezium structure, the upper surface of inlaying convex surface snaps in groove and fixes with it, inlay lower surface and the sealing plate of convex surface and fix, the width of inlaying the upper surface of convex surface is greater than the width of lower surface.
4. the flap for ammonia valve according to claim 1, is characterized in that: described sealing plate, inlay convex surface and sealing convex surface is fixed into one.
5. the flap for ammonia valve according to claim 1, is characterized in that: described sealing plate, inlay convex surface and sealing convex surface is teflon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593481.2U CN203500519U (en) | 2013-09-25 | 2013-09-25 | Valve clack used for ammonia valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593481.2U CN203500519U (en) | 2013-09-25 | 2013-09-25 | Valve clack used for ammonia valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203500519U true CN203500519U (en) | 2014-03-26 |
Family
ID=50331499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320593481.2U Expired - Fee Related CN203500519U (en) | 2013-09-25 | 2013-09-25 | Valve clack used for ammonia valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203500519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006168A (en) * | 2014-06-11 | 2014-08-27 | 浙江达柏林阀门有限公司 | Stop valve |
-
2013
- 2013-09-25 CN CN201320593481.2U patent/CN203500519U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006168A (en) * | 2014-06-11 | 2014-08-27 | 浙江达柏林阀门有限公司 | Stop valve |
| CN104006168B (en) * | 2014-06-11 | 2016-04-27 | 浙江达柏林阀门有限公司 | A kind of stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20140326 Termination date: 20210925 |