CN204717041U - The corrosion-resistant fluorine-lining valve door of zero leakage - Google Patents
The corrosion-resistant fluorine-lining valve door of zero leakage Download PDFInfo
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- CN204717041U CN204717041U CN201520199113.9U CN201520199113U CN204717041U CN 204717041 U CN204717041 U CN 204717041U CN 201520199113 U CN201520199113 U CN 201520199113U CN 204717041 U CN204717041 U CN 204717041U
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Abstract
The utility model relates to the corrosion-resistant fluorine-lining valve door of a kind of zero leakage for Chemical Manufacture, comprise valve body, valve rod that the valve seat in valve body, the spool in valve seat are connected with spool, be arranged on filler assembly between valve rod and valve body, it is characterized in that, described filler assembly comprises stuffing box, stuffing box ring is enclosed within valve rod, the packing cavity for placing filler is formed between the inner side of stuffing box and valve rod, this packing cavity is separated up and down and is arranged to the taper packing layer that some layer cross sections are taper, arranges filler in taper packing layer; The outside of described stuffing box is connected with valve body, and concavo-convex tongue-and-groove linkage structure is arranged in the joint of stuffing box and valve body.The utility model adopts tongue-and-groove to connect the connection of replacement plane, and increase the area of contact of stuffing box and main body sealing structure, better tightness, structure is more stable.
Description
Technical field
The utility model relates to valve, is specifically related to the corrosion-resistant fluorine-lining valve door of a kind of zero leakage for Chemical Manufacture.
Background technique
Compared with common valve, the medium that fluorine-lining valve Men Yinqi circulates is all the corrosive liquids that pH value is stronger usually, once it is very big that leakage hazard occurs, so the sealing index of fluorine-lining valve door is a very important index.How to ensure that the performances such as it seals, corrosion-resistant are the problems of fluorine-lining valve door research always.Existing fluorine-lining valve door has the following disadvantages: 1, in valve mechanism, traditional stuffing box and main body sealing structure generally adopt the form of plane and plane engagement, plane sealing to the degree of finish of plane and flatness requirement high, not easily process aborning, and sealing is not good; 2, traditional stuffing box and filler surface of contact are plane, and backing layer is thinner, need more tetrafluoro insertion ring could increase its sealing.Given this, my structure of company to fluorine-lining valve door is studied and improves.
Summary of the invention
The utility model, mainly for the not good shortcoming of fluorine-lining valve door seal, has invented the corrosion-resistant fluorine-lining valve door of a kind of zero leakage, on the one hand, adopt tongue-and-groove to connect and replace plane to connect, increase the area of contact of stuffing box and main body sealing structure, better tightness, structure is more stable; On the other hand, the surface of contact of stuffing box and filler adopts taper, increases its backing layer thickness, and stuffing box and insertion ring are fitted tightr, sealability is better.
Above-mentioned technical problem of the present utility model is implemented by the following technical programs: the corrosion-resistant fluorine-lining valve door of a kind of zero leakage, comprise valve body, be positioned at the valve seat of valve body, be positioned at the spool of valve seat, the valve rod be connected with spool, be arranged on the filler assembly between valve rod and valve body, it is characterized in that, described filler assembly comprises stuffing box, stuffing box ring is enclosed within valve rod, the packing cavity for placing filler is formed between the inner side of stuffing box and valve rod, this packing cavity is separated up and down and is arranged to the taper packing layer that some layer cross sections are taper, in taper packing layer, filler is set, the outside of described stuffing box is connected with valve body, and concavo-convex tongue-and-groove linkage structure is arranged in the joint of stuffing box and valve body, the inner side of described valve body is provided with lining fluorine layer, two passage places before and after valve body, arranges a groove between lining fluorine layer and valve body, arranges layer of metal net in this groove.
As preferably, in the packing cavity inside described stuffing box, have two-layer taper packing layer at least, in every one deck taper packing layer, all fill filler.The packing layer of traditional stuffing box is plane, and backing layer is thinner, needs more tetrafluoro insertion ring to increase its sealing, and the packing layer of stuffing box after improving adopts taper, and while reducing tetrafluoro insertion ring number, sealing is better.
Described wire netting is steel wire; Wire netting and the combination serving as a contrast fluorine layer, while resistance to negative pressure, corrosion resistance is better.
In sum, the utility model compared with prior art tool have the following advantages:
Tongue-and-groove linkage structure is adopted between stuffing box of the present utility model and valve body, combine compared to traditional plane, add area of contact, and groove and groove are seamless links, fixed performance is better, so after use tongue-and-groove linkage structure except sealability is strengthened, productivity have also been obtained lifting; Stuffing box after the utility model improves and the surface of contact of filler adopt taper, increase its backing layer thickness, stuffing box and insertion ring are fitted tightr, sealability is also better, and has saved cost while reducing tetrafluoro insertion ring number and enhanced the integrity of tetrafluoro; The utility model is provided with groove in main body and accessory body passage, and increases layer of steel wire net, adds tetrafluoro thickness, and while resistance to negative pressure, corrosion resistance is better.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model;
Fig. 2 is the schematic diagram that the utility model stuffing box is connected with valve body;
Fig. 3 is the sectional view of two passages before and after the utility model valve body.
Number in the figure is: 1, valve body; 2, valve seat; 3, spool; 4, valve rod; 5, stuffing box; 6, taper packing layer; 7, tongue-and-groove linkage structure; 8, fluorine layer is served as a contrast; 9, wire netting.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
As shown in Figure 1, the corrosion-resistant fluorine-lining valve door of a kind of zero leakage, the valve rod 4 comprising valve body 1, be positioned at the valve seat 2 of valve body 1, be positioned at the spool 3 of valve seat 2, be connected with spool 3.
As shown in Figure 2, filler assembly is provided with between valve rod 4 and valve body 1, comprise stuffing box 5, stuffing box 5 ring set is on valve rod 4, the packing cavity for placing filler is formed between the inner side of stuffing box 5 and valve rod 4, this packing cavity is separated into the taper packing layer 6 that three layer cross sections are taper up and down, fills filler in taper packing layer 6.
The outside of described stuffing box 5 is connected with valve body 1, and stuffing box 5 is arranged to concavo-convex tongue-and-groove linkage structure 7 with the joint of valve body 1.
As shown in Figure 3, the inner side of described valve body 1 is provided with lining fluorine layer 8, two passage places before and after valve body 1, has a groove between lining fluorine layer 8 and valve body 1, and have layer of metal net 9 in this groove, this wire netting 9 is steel wire.
Specific embodiment described in literary composition is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (3)
1. the corrosion-resistant fluorine-lining valve door of zero leakage, comprise valve body (1), be positioned at the valve seat (2) of valve body, be positioned at the spool (3) of valve seat, the valve rod (4) be connected with spool, be arranged on filler assembly between valve rod and valve body, it is characterized in that, described filler assembly comprises stuffing box (5), stuffing box ring is enclosed within valve rod, the packing cavity for placing filler is formed between the inner side of stuffing box and valve rod, this packing cavity is separated up and down and is arranged to the taper packing layer (6) that some layer cross sections are taper, arranges filler in taper packing layer;
The outside of described stuffing box is connected with valve body, and concavo-convex tongue-and-groove linkage structure (7) is arranged in the joint of stuffing box and valve body;
The inner side of described valve body is provided with lining fluorine layer (8), two passage places before and after valve body, arranges a groove between lining fluorine layer and valve body, arranges layer of metal net (9) in this groove.
2. the corrosion-resistant fluorine-lining valve door of zero leakage according to claim 1, is characterized in that, in the packing cavity inside described stuffing box, has two-layer taper packing layer at least, all fills filler in every one deck taper packing layer.
3. the corrosion-resistant fluorine-lining valve door of zero leakage according to claim 1, is characterized in that, described wire netting is steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199113.9U CN204717041U (en) | 2015-04-03 | 2015-04-03 | The corrosion-resistant fluorine-lining valve door of zero leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199113.9U CN204717041U (en) | 2015-04-03 | 2015-04-03 | The corrosion-resistant fluorine-lining valve door of zero leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204717041U true CN204717041U (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520199113.9U Active CN204717041U (en) | 2015-04-03 | 2015-04-03 | The corrosion-resistant fluorine-lining valve door of zero leakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204717041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257857A (en) * | 2015-11-06 | 2016-01-20 | 浙江有氟密阀门有限公司 | Steel-lining fluoroplastic ceramic valve |
-
2015
- 2015-04-03 CN CN201520199113.9U patent/CN204717041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257857A (en) * | 2015-11-06 | 2016-01-20 | 浙江有氟密阀门有限公司 | Steel-lining fluoroplastic ceramic valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |