CN204942599U - Corrosion-resistant band skeleton valve - Google Patents
Corrosion-resistant band skeleton valve Download PDFInfo
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- CN204942599U CN204942599U CN201520681049.8U CN201520681049U CN204942599U CN 204942599 U CN204942599 U CN 204942599U CN 201520681049 U CN201520681049 U CN 201520681049U CN 204942599 U CN204942599 U CN 204942599U
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Abstract
The utility model relates to a kind of corrosion-resistant band skeleton valve, solve existing full-metallic valve anti-highly basic strong acid ability more weak, easily be corroded, all-plastic valve is easily out of shape, the defect that nominal pressure is lower, valve body adopts axial Split type structure, valve inner is provided with valve body Steel Skeleton, the appearance of valve body Steel Skeleton is coated with plastic layer, valve body Steel Skeleton inwall is coated with plastic inner lining or tetrafluoro plate liner, valve ball inside is provided with valve ball Steel Skeleton, valve ball Steel Skeleton is hollow structure, empty internal is filled with plastics, valve ball Steel Skeleton is coated with plastic layer towards the appearance of valve interior wall, valve ball Steel Skeleton is coated with plastic inner lining or tetrafluoro plate liner towards the inwall of valve axis.Steel Skeleton can improve the non-deformability of valve body and valve ball, has stronger nominal pressure, outside plastic covering, inner plastic covering or tetrafluoro plate, strengthen the resistivity to highly basic and strong acid, improve overall corrosion resistance energy, adapt to more wider duty requirements.
Description
Technical field
The utility model relates to valve field, especially a kind of corrosion-resistant band skeleton valve.
Background technique
Existing valve is all-metal valve, the valve of all-plastic, these three kinds, the valve of lining substantially, and these three kinds of valves respectively have individual advantages and disadvantages.
The valve that metal manufactures, working condition strong adaptability.Substantially can adapt to all media, but deficiency is still had to highly basic strong acid.The valve that metal manufactures must by smelting, and casting and forge could be shaping, becomes valve blank.The blank of valve also just will can become valve finished product through metal cutting process.Whole manufacture process craft is complicated, and the process-cycle is long, and product price is high, large to environmental disruption factor, needs the expense of environmental protection larger.
The valve that all-plastic manufactures, advantage is that making method is simple, and price comparison is cheap, has certain corrosion resistance.But due to the particularity of plastic materials, such as easily break under cryogenic, be easily out of shape under the high temperature conditions, the generation to environment and security incident can be caused.The nominal pressure of plastic valve can not more than 0.6Mpa, and applying working condition condition is more limited.
The valve of lining is the valve made for adapting to acid, alkali and other special operation condition conditions, is at the inside of the metal valve lining nonmetallic material such as tetrafluoro, rubber and metallic material.The advantage of this kind valve is can as using under special operation condition condition and can saving valuable metallic material, and shortcoming is because valve appearance does not have protective layer, appearance serious corrosion.Separately due to inner lining material and metallic material laminating imprecision, can lining spalling be produced when pipeline pressure produces negative pressure, cause trouble to the production of valve enterprise and environmental protection work.
Summary of the invention
It is more weak that the utility model solves existing full-metallic valve anti-highly basic strong acid ability, the defect be easily corroded, a kind of corrosion-resistant band skeleton valve is provided, using metal as skeleton, by being injection-moulded in outside coating plastic, retain the intensity of metal valve, improve anti-corrosion capacity, there is stronger non-deformability simultaneously.
The utility model also solves existing all-plastic valve and is easily out of shape, nominal pressure is lower, the defect that applying working condition is limited, a kind of corrosion-resistant band skeleton valve is provided, using metal as skeleton, by being injection-moulded in outside coating plastic, retain anti-corrosion capacity, improve nominal pressure simultaneously, there is stronger non-deformability.
The utility model also solves the valve of existing liner, appearance is easily corroded, and the tetrafluoro plate of liner is easily in the defect that negative pressure condition comes off, a kind of corrosion-resistant band skeleton valve is provided, tetrafluoro plate liner and skeleton glue note heat setting, improve the join strength of interior lining panel, external application tetrafluoro plate or injection moulding coated, increase the erosion-resisting ability of appearance.
The utility model solves the technological scheme that its technical problem adopts: a kind of corrosion-resistant band skeleton valve, comprise the valve body of band valve stem, be arranged at the valve ball of valve inner, valve ball is connected with valve rod, valve rod matches with valve stem, valve body adopts axial Split type structure, valve inner is provided with valve body Steel Skeleton, the appearance of valve body Steel Skeleton is coated with plastic layer, valve body Steel Skeleton inwall is coated with plastic inner lining or tetrafluoro plate liner, valve ball inside is provided with valve ball Steel Skeleton, valve ball Steel Skeleton is hollow structure, empty internal is filled with plastics, valve ball Steel Skeleton is coated with plastic layer towards the appearance of valve interior wall, valve ball Steel Skeleton is coated with plastic inner lining or tetrafluoro plate liner towards the inwall of valve axis.Steel Skeleton can improve the non-deformability of valve body and valve ball, has stronger nominal pressure, outside plastic covering, inner plastic covering or tetrafluoro plate, strengthen the resistivity to highly basic and strong acid, improve overall corrosion resistance energy, adapt to more wider duty requirements.
As preferably, be connected between two splits of described valve body by flange arrangement, the axis of the vertical valve body of parting surface of two splits, the involutory contact position of valve body two split is plastic inner lining or tetrafluoro plate liner.
As preferably, valve ball Steel Skeleton is a solid of rotation, solid of rotation with flat-cut circle surround closed arc for revolution part, the gyration center of solid of rotation is the axis of valve body, and string is rotarily formed valve inner gateway.
As preferably, valve ball Steel Skeleton is provided with at least two openings, arc interior or exterior space closed by open communication valve ball Steel Skeleton, closes arc interior space and is filled with plastics, and the plastic inner lining of valve ball or tetrafluoro plate liner cover opening.
As preferably, stem internal is provided with valve rod Steel Skeleton, and valve rod Steel Skeleton is connected with valve ball Steel Skeleton, valve rod Steel Skeleton outer wall coating plastic layer, and the outer end of valve rod Steel Skeleton is closed.
As preferably, the end of the valve stem of valve body is provided with adpting flange, and valve rod matches with valve stem, is filled with valve stem packing between valve stem inwall and valve rod outer wall, and the outer end of valve stem is fixed with Gland by adpting flange; It is outer and be fixed with handle that valve rod reaches Gland.
As preferably, the two ends of valve body are valve end adpting flange, and valve body two split docking site is split adpting flange, and the end of valve stem is valve stem adpting flange, and valve body Steel Skeleton is greater than the thickness at all the other positions at the thickness at individual adpting flange position.
As preferably, the tetrafluoro plate lengths of liner that valve ball Steel Skeleton inwall covers is greater than the axial length of valve ball Steel Skeleton, and the turnover of tetrafluoro plate liner two ends forms flange, and flange encases the position at the axial two ends of valve ball Steel Skeleton.
The beneficial effects of the utility model are: Steel Skeleton can improve the non-deformability of valve body and valve ball, there is stronger nominal pressure, outside plastic covering, inner plastic covering or tetrafluoro plate, strengthen the resistivity to highly basic and strong acid, improve overall corrosion resistance energy, adapt to more wider duty requirements.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model;
In figure: 1, handle, 2, top cover, 3, Gland, 4, valve stem packing, 5, valve stem, 6, valve body, 7, valve body Steel Skeleton, 8, path, 9, opening, 10, valve ball, 11, valve ball Steel Skeleton, 12, close arcuate space, 13, valve rod Steel Skeleton, 14, valve rod.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: a kind of corrosion-resistant band skeleton valve (see Fig. 1), and comprise the valve body 6 of band valve stem 5, be arranged at the valve ball 10 of valve inner, valve ball is connected with valve rod 14, and valve rod matches with valve stem, and the end winding support of valve rod has handle 1.The axis place of valve body is provided with path 8, and valve ball is rotary structure, and the gyration center place of valve ball is provided with path, and the appearance of valve ball is sphere, rotates valve ball, the path of valve ball and the communication of valve body or shutoff.The end of the valve stem of valve body is provided with adpting flange, valve rod matches with valve stem, be filled with valve stem packing 4 between valve stem inwall and valve rod outer wall and have top cover to be placed on stem exterior and withstand valve stem packing, the outer end of valve stem is fixed with Gland 3 by adpting flange, Gland withstands top cover, is bolted adpting flange and the Gland of valve stem end.
Valve body adopts axial Split type structure, and the interface vertical valve body axis of two splits, two splits are connected by adpting flange.Each split inside of valve body is provided with valve body Steel Skeleton 7, and the appearance of valve body Steel Skeleton is coated with plastic layer, and valve body Steel Skeleton inwall is coated with plastic inner lining, and the involutory contact position of valve body two split is plastic inner lining.The two ends of valve body are valve end adpting flange, and valve body two split docking site is split adpting flange, and the end of valve stem is valve stem adpting flange, and valve body Steel Skeleton is greater than the thickness at all the other positions at the thickness at individual adpting flange position.
Valve ball inside is provided with valve ball Steel Skeleton 11, and valve ball Steel Skeleton is a solid of rotation, and solid of rotation is with the round enclosed construction surrounded of flat-cut for revolution part, and string is rotarily formed valve inner gateway.On valve ball Steel Skeleton corresponding valve ball outer wall sphere on be provided with at least two openings 9, open communication valve ball Steel Skeleton closes arcuate space and space outerpace 12, close arcuate space and fill full plastics by opening, the interior table plastic covering liner of valve ball Steel Skeleton string and plastic inner lining covers opening.
Stem internal is provided with valve rod Steel Skeleton 13, and valve rod Steel Skeleton is fixedly connected with the outer spherical face of valve ball Steel Skeleton, valve rod Steel Skeleton outer wall coating plastic layer, and the outer end of valve rod Steel Skeleton is closed, valve rod and valve axis perpendicular.
The preparation process of corrosion-resistant band skeleton valve, comprise the steps: that (1) designs the geomery of valve body Steel Skeleton and the geomery of valve ball Steel Skeleton respectively according to the geometrical shape of the type valve and mechanical strength, simultaneously offer three openings at valve ball Steel Skeleton away from the sphere place of valve rod Steel Skeleton;
(2) external mold and the internal mold of valve body is made respectively according to the face shaping of valve and internal path structure, the external mold of valve ball and internal mold;
(3) valve body carries out matched moulds respectively according to the structure of split, injection moulding is carried out according to the structure of split after matched moulds, valve body Steel Skeleton is fixed in the cavity of the external mold of valve body split and internal mold matched moulds composition, and adjusts the gap between valve body Steel Skeleton and external mold inwall and internal mold outer wall; Valve ball Steel Skeleton is fixed in the cavity of the external mold of valve ball and internal mold matched moulds composition, and adjusts the gap between valve ball Steel Skeleton and external mold inwall and internal mold outer wall;
(4) to injection moulding in the matched moulds cavity of valve body, after injection moulding, pressurize is carried out, cool to room temperature after pressurize set time the demoulding, pressurize 7-10min under the pressure of 20-30MPa;
(5) opening of valve ball Steel Skeleton is connected with the bleeding point after matched moulds, injection moulding in the matched moulds cavity of valve ball, and comparing valve body injection pressure in injection moulding increases 3MPa, guarantees that full plastics are filled in closed arcuate space inside;
(6) blank is processed, process laggard luggage and join, after assembling, carry out pressure testing, after pressure testing is qualified, complete packaging.
Embodiment 2: a kind of corrosion-resistant band skeleton valve, difference from Example 1 is: valve body Steel Skeleton inwall glues note and fixes tetrafluoro plate liner, tetrafluoro plate liner is overall cylindrical shape, the string inwall of valve ball Steel Skeleton glues note and fixes tetrafluoro plate liner, tetrafluoro plate liner is cylindrical shape, the tetrafluoro plate liner two ends flange of valve ball inwall, flange encases the link position between the string of valve ball Steel Skeleton and circle.The outside plastic covering layer of valve ball Steel Skeleton, the outside plastic covering layer of valve body.
The valve body of liner tetrafluoro plate and valve ball all need cutting tetrafluoro plate, the length of the tetrafluoro plate of valve ball is greater than valve ball axial length, the tetrafluoro plate exceeded to be folded into flange when sticky note, flange encases the two-end part of valve ball Steel Skeleton, tetrafluoro plate glues heat-shaping after note, and the temperature of heating is 350-450 DEG C, sizing 5h, put in matched moulds cavity after the sizing of tetrafluoro plate liner and carry out injection moulding, now tetrafluoro plate liner and internal mold outer surface fit.All the other structures are with reference to embodiment 1.
Above-described embodiment is two kinds of preferred version of the present utility model, not does any pro forma restriction to the utility model, also has other variant and remodeling under the prerequisite not exceeding the technological scheme described in claim.
Claims (8)
1. a corrosion-resistant band skeleton valve, comprise the valve body of band valve stem, be arranged at the valve ball of valve inner, valve ball is connected with valve rod, valve rod matches with valve stem, it is characterized in that valve body adopts axial Split type structure, valve inner is provided with valve body Steel Skeleton, the appearance of valve body Steel Skeleton is coated with plastic layer, valve body Steel Skeleton inwall is coated with plastic inner lining or tetrafluoro plate liner, valve ball inside is provided with valve ball Steel Skeleton, valve ball Steel Skeleton is hollow structure, empty internal is filled with plastics, valve ball Steel Skeleton is coated with plastic layer towards the appearance of valve interior wall, valve ball Steel Skeleton is coated with plastic inner lining or tetrafluoro plate liner towards the inwall of valve axis.
2. corrosion-resistant band skeleton valve according to claim 1, be connected by flange arrangement between two splits that it is characterized in that described valve body, the axis of the vertical valve body of parting surface of two splits, the involutory contact position of valve body two split is plastic inner lining or tetrafluoro plate liner.
3. corrosion-resistant band skeleton valve according to claim 1, is characterized in that valve ball Steel Skeleton is a solid of rotation, solid of rotation with flat-cut circle surround closed arc for revolution part, the gyration center of solid of rotation is the axis of valve body, and string is rotarily formed valve inner gateway.
4. corrosion-resistant band skeleton valve according to claim 3, it is characterized in that valve ball Steel Skeleton is provided with at least two openings, arc interior or exterior space closed by open communication valve ball Steel Skeleton, closes arc interior space and is filled with plastics, and the plastic inner lining of valve ball or tetrafluoro plate liner cover opening.
5. corrosion-resistant band skeleton valve according to claim 1, it is characterized in that stem internal is provided with valve rod Steel Skeleton, valve rod Steel Skeleton is connected with valve ball Steel Skeleton, valve rod Steel Skeleton outer wall coating plastic layer, and the outer end of valve rod Steel Skeleton is closed.
6. the corrosion-resistant band skeleton valve according to claim 1 or 2 or 3 or 5, it is characterized in that the end of the valve stem of valve body is provided with adpting flange, valve rod matches with valve stem, be filled with valve stem packing between valve stem inwall and valve rod outer wall, the outer end of valve stem is fixed with Gland by adpting flange; It is outer and be fixed with handle that valve rod reaches Gland.
7. the corrosion-resistant band skeleton valve according to claim 1 or 2 or 3 or 5, it is characterized in that the two ends of valve body are valve end adpting flange, valve body two split docking site is split adpting flange, the end of valve stem is valve stem adpting flange, and valve body Steel Skeleton is greater than the thickness at all the other positions at the thickness at individual adpting flange position.
8. corrosion-resistant band skeleton valve according to claim 1, it is characterized in that tetrafluoro plate lengths of liner that valve ball Steel Skeleton inwall covers is greater than the axial length of valve ball Steel Skeleton, the turnover of tetrafluoro plate liner two ends forms flange, and flange encases the position at the axial two ends of valve ball Steel Skeleton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520681049.8U CN204942599U (en) | 2015-09-06 | 2015-09-06 | Corrosion-resistant band skeleton valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520681049.8U CN204942599U (en) | 2015-09-06 | 2015-09-06 | Corrosion-resistant band skeleton valve |
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| Publication Number | Publication Date |
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| CN204942599U true CN204942599U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520681049.8U Active CN204942599U (en) | 2015-09-06 | 2015-09-06 | Corrosion-resistant band skeleton valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606219A (en) * | 2017-10-31 | 2018-01-19 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of ball valve with valve stem gland |
| CN111065851A (en) * | 2019-01-25 | 2020-04-24 | 李相璇 | Valve capable of preventing distortion |
-
2015
- 2015-09-06 CN CN201520681049.8U patent/CN204942599U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606219A (en) * | 2017-10-31 | 2018-01-19 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of ball valve with valve stem gland |
| CN111065851A (en) * | 2019-01-25 | 2020-04-24 | 李相璇 | Valve capable of preventing distortion |
| CN111065851B (en) * | 2019-01-25 | 2022-02-18 | 李相璇 | Valve capable of preventing distortion |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |