CN213451738U - Negative pressure resistant fluorine-lined butterfly valve - Google Patents
Negative pressure resistant fluorine-lined butterfly valve Download PDFInfo
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- CN213451738U CN213451738U CN202022024933.8U CN202022024933U CN213451738U CN 213451738 U CN213451738 U CN 213451738U CN 202022024933 U CN202022024933 U CN 202022024933U CN 213451738 U CN213451738 U CN 213451738U
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- reinforcing rib
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Abstract
The utility model relates to a negative pressure resistant fluorine-lined butterfly valve, which comprises an upper valve body, a lower valve body, a butterfly plate with a handle and a sealing ring; the butterfly plate with the handle is coated with a first fluoroplastic layer; a second fluorine plastic layer is arranged on the sealing ring, and reinforcing ribs are arranged on the surface of the sealing ring; the upper valve body and the lower valve body are provided with heat preservation media; the sealing washer includes two sets ofly, is located respectively: the upper valve body and the butterfly plate with the handle, and the lower valve body and the butterfly plate with the handle; an upper valve body reinforcing rib groove is formed in the position where the reinforcing rib is combined with the upper valve body, and a reinforcing rib is arranged in the upper valve body reinforcing rib groove; the lower valve body at the joint of the reinforcing rib and the lower valve body is provided with a lower valve body reinforcing rib groove, and the reinforcing rib is arranged in the lower valve body reinforcing rib groove. The utility model discloses corrosion-resistant effectual, keep warm effectual, sealed effectual, simple to operate's resistant negative pressure lining fluorine butterfly valve.
Description
Technical Field
The utility model relates to a butterfly valve, concretely relates to resistant negative pressure fluorine lining butterfly valve that corrosion-resistant effectual, the heat preservation is effectual, sealed effectual, simple to operate.
Background
Since the twenty-first century, the world petrochemical industry gradually shifts to China, China has become a world large country for producing petrochemical products, the crude oil processing capacity and the ethylene production capacity now live in the second place and the third place around the world and are further increased, petrochemical equipment in China depends on import for a long time, and special valves on some important processes are imported. The inlet valve is not only expensive, but also inconvenient to replace when in maintenance. Therefore, the development of the high-end valve is independently innovated, and the adoption of the national generation is the responsibility of the independency of the valve industry in China.
The fluorine-lined plastic valve is researched and developed in the seventies of the last century, and due to the particularity of the valve structure, the initial fluorine-lined plastic valve is mainly focused on butterfly valves and ball valves which are simple in structure and cannot adapt to strong acid, strong base and solvent media of petrochemical pipelines. The Hastelloy, Monel and nickel-based alloys are invented later, the problem of petrochemical special pipeline transportation is solved, but the alloys contain a large amount of noble metals such as Ni, Cr, Nb, Ti and the like. In addition, the fluoroplastic lining valve has limited resources and high price, and becomes an ideal displacement object for a noble metal valve, and the lining valve is a product developed by modern science and technology.
This novel resistant negative pressure lining fluorine butterfly valve structure is central line formula seal structure, and the valve rod fuses with the butterfly plate as an organic whole, and the butterfly plate is rotatory 90, can realize opening and close process of valve. Because the opening and closing process is completed only by rotating the butterfly plate by 90 degrees, the opening and closing time is not as fast as that of valves such as gate valves, stop valves and the like, and the opening and closing are very fast. However, due to the complexity of the manufacturing process, fluorine-lined butterfly valves are produced by a few manufacturers at home and abroad. Even if some manufacturers produce the butterfly valve, the valve body structure of the butterfly valve has many defects, the working condition of a pipeline generated by negative pressure cannot be met, and many places need to be improved.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a negative pressure resistant fluorine-lined butterfly valve with good corrosion resistance, good heat insulation effect, good sealing effect and convenient installation.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a negative pressure resistant fluorine-lined butterfly valve, comprising: the upper valve body, the lower valve body, the butterfly plate with the handle and the sealing ring; a butterfly plate with a handle in the negative pressure resistant fluorine-lined butterfly valve is coated with a first fluoroplastic layer; a second fluorine plastic layer is arranged on the sealing ring, and reinforcing ribs are arranged on the surface of the sealing ring; the upper valve body and the lower valve body are provided with heat preservation media; the sealing washer includes two sets ofly, is located respectively: between the upper valve body and the butterfly plate with handle, and between the lower valve body and the butterfly plate with handle.
An upper valve body reinforcing rib groove is formed in the position where the reinforcing rib is combined with the upper valve body, and a reinforcing rib is arranged in the upper valve body reinforcing rib groove; the lower valve body at the joint of the reinforcing rib and the lower valve body is provided with a lower valve body reinforcing rib groove, and the reinforcing rib is arranged in the lower valve body reinforcing rib groove.
In the specific embodiment of the present invention, the thickness of the heat-insulating medium is in the range of 5-10 mm.
In an embodiment of the present invention, the thickness of the first fluoroplastic layer ranges from 0.5mm to 1 mm.
In a specific embodiment of the present invention, the thickness of the second fluorine plastic layer is in the range of 0.1-0.5 mm.
In a specific embodiment of the present invention, the handle and the butterfly plate in the butterfly plate with handle are integrally formed.
In an embodiment of the present invention, the upper valve body reinforcing rib groove and the lower valve body reinforcing rib groove are rectangular bayonet grooves, and the matched reinforcing rib is a rectangular reinforcing rib.
In an embodiment of the present invention, the upper valve body reinforcing rib groove and the lower valve body reinforcing rib groove are trapezoidal bayonet grooves, and the matched reinforcing rib is a trapezoidal reinforcing rib.
In a specific embodiment of the present invention, the thickness of the sealing ring ranges from 2mm to 5 mm.
In a specific embodiment of the present invention, the height range of the reinforcing rib is: 1-2 mm.
The utility model discloses an among the concrete implementation example, the tip of the last valve body that combines with the sealing washer and lower valve body is provided with the draw-in groove, the tip of sealing washer be provided with draw-in groove complex buckle, be provided with the arch on the buckle.
The utility model discloses an actively advance the effect and lie in: the utility model provides a resistant negative pressure fluorine butterfly valve of lining has following advantage: 1. the fluorine plastic layer is added, so that the composite material can adapt to corrosive substances such as strong acid, strong alkali and the like of a pipeline.
2. The reinforcing ribs on the surface of the sealing ring are added, and the reinforcing ribs enable the sealing ring to be better clung to a channel through which a medium flows.
3. Thickened the heat preservation medium, the heat preservation effect is better, and the high viscosity medium that can solidify under the normal atmospheric temperature or the medium that can crystallize just can not reduce through the valve time temperature, the utility model discloses a design has guaranteed that the medium can be smooth through the valve.
4. The handle and the butterfly plate in the butterfly plate with the handle are integrally formed, so that the integral structural stability is better.
5. The end parts of the upper valve body and the lower valve body combined with the sealing ring are provided with clamping grooves, the end parts of the sealing ring are provided with buckles matched with the clamping grooves, and bulges are arranged on the buckles, so that the sealing ring and the upper valve body are better installed with the lower valve body, and meanwhile, the sealing ring is better combined with the shell, and the installation is more convenient.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged view of fig. 1 at "a".
The utility model discloses the name that well reference numeral corresponds:
an upper valve body 1, a lower valve body 2, a butterfly plate 3 with a handle and a sealSealing ring 4、First fluoroplastic layer 5、A second fluorine plastic layer 6 and a reinforcing rib 7、The heat preservation medium 8, the clamping groove 9, the buckle 10 and the protrusion 11; upper valve body bead groove 101, lower valve body bead groove 201.
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
The utility model provides a resistant negative pressure fluorine butterfly valve structure of lining mainly comprises last valve body, lower valve body, strengthening rib thickening fluorine lining sealing washer, lining fluorine band handle butterfly plate etc.. The original fluorine lining sealing ring is designed by reinforcing ribs and thickening. The improved design solves the problems that the original sealing ring has low strength, the fluorine lining sealing ring can be sucked and expanded by slight negative pressure, the whole fluorine lining sealing ring can be sucked out by slightly larger negative pressure, and great hidden danger is caused to the safe and effective operation of a pipeline.
Fig. 1 is a schematic view of the overall structure of the present invention. As shown in fig. 1, the negative pressure resistant fluorine-lined butterfly valve provided by the utility model comprises an upper valve body 1, a lower valve body 2, a butterfly plate with a handle 3 and a sealing ring 4; the butterfly plate 3 with the handle in the negative pressure resistant fluorine-lined butterfly valve is coated with a first fluoroplastic layer 5; a second fluorine plastic layer 6 is arranged on the sealing ring 4, and a reinforcing rib 7 is arranged on the surface of the sealing ring 4; the upper valve body 1 and the lower valve body 2 are provided with heat preservation media 8.
The utility model provides a sealing washer 4 includes two sets ofly, is located respectively: between the upper valve body 1 and the butterfly plate with handle 3, and between the lower valve body 2 and the butterfly plate with handle 3.
An upper valve body reinforcing rib groove 101 is formed in the upper valve body 1 at the joint of the reinforcing rib 7 and the upper valve body 1, and the reinforcing rib 7 is installed in the upper valve body reinforcing rib groove 101.
The lower valve body 2 at the joint of the reinforcing rib 7 and the lower valve body 2 is provided with a lower valve body reinforcing rib groove 201, and the reinforcing rib 7 is arranged in the lower valve body reinforcing rib groove 201.
In the specific implementation process, the thickness range of the heat preservation medium in the utility model is 5-10 mm; the thickness of the first fluoroplastic layer 5 ranges from 0.5mm to 1 mm; the thickness of the second plastic fluoride layer 6 ranges from 0.1 mm to 0.5 mm; the thickness range of the sealing ring 4 is 2-5mm (not including the height of the reinforcing rib), and the height range of the reinforcing rib 7 is as follows: 1-2mm, and other parameters can be selected according to the requirement.
Fig. 2 is an enlarged view of fig. 1 at "a". As shown in fig. 2, the end portions of the upper valve body 1 and the lower valve body 2 combined with the sealing ring 4 are provided with a clamping groove 9, the end portion of the sealing ring 4 is provided with a buckle 10 matched with the clamping groove 9, and a protrusion 11 is arranged on the buckle 10, so that the sealing ring 4 and the upper valve body 1 are better installed with the lower valve body 2, and meanwhile, the sealing ring 4 and the shell are better combined, and the installation is more convenient.
When processing, the handle and the butterfly plate in the butterfly plate 3 with the handle of the utility model are processed into an integrated structure.
In specific implementation process, the utility model provides an upper valve body strengthening rib groove and lower valve body strengthening rib groove can design for trapezoidal bayonet groove, correspondingly, for the trapezoidal bayonet groove of cooperation, strengthening rib 7 is also designed into trapezoidally, and what give in figure 2 is the strengthening rib of rectangle and the bayonet groove of rectangle.
The following is a specific example of implementation:
casting the upper valve body, the lower valve body and the butterfly plate with the handle of the steel part by using the casting model, and performing metal processing to obtain the drawing size. The new fluorine lining mould pressing process is used for carrying out fluorine lining mould pressing processing on the butterfly plate with the handle, and then the lining cavity is used for pressing out the fluorine plastic reinforcing rib thickened fluorine lining sealing ring. Polishing the fluorine lining butterfly plate with the handle and the reinforcing rib thickened fluorine lining sealing ring which are lined with fluorine to ensure that the sealing surfaces can be completely matched, linear sealing can be achieved, and the related size and surface precision meet the requirements of a drawing.
The installation step: placing the reinforcing rib thickened fluorine lining sealing ring into hot water of 80 ℃, heating for a few minutes, then quickly pressurizing two sides, quickly installing a fluorine lining handle butterfly plate after flattening, and removing the pressure on the reinforcing rib thickened fluorine lining sealing ring after installing the fluorine lining handle butterfly plate to enable the reinforcing rib thickened fluorine lining sealing ring to rebound. Then the upper valve body is placed on a special mounting platform and fixed, a rubber sealing gasket is placed in the middle sealing groove of the upper valve body, then a reinforcing rib thickening fluorine lining sealing ring bushing with a fluorine lining handle butterfly plate is pressed in, then the rubber sealing gasket is placed in the middle sealing groove of the lower valve body, the lower valve body and the upper valve body are closed, the upper valve body and the lower valve body are uniformly and symmetrically screwed up through connecting bolts, then the upper shaft end F4 sealing filler is loaded, the packing gland is loaded, and the packing gland screw is screwed up.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (10)
1. A negative pressure resistant fluorine-lined butterfly valve, comprising: the upper valve body, the lower valve body, the butterfly plate with the handle and the sealing ring; the method is characterized in that: a butterfly plate with a handle in the negative pressure resistant fluorine-lined butterfly valve is coated with a first fluoroplastic layer; a second fluorine plastic layer is arranged on the sealing ring, and reinforcing ribs are arranged on the surface of the sealing ring; the upper valve body and the lower valve body are provided with heat preservation media; the sealing washer includes two sets ofly, is located respectively: the upper valve body and the butterfly plate with the handle, and the lower valve body and the butterfly plate with the handle;
an upper valve body reinforcing rib groove is formed in the position where the reinforcing rib is combined with the upper valve body, and a reinforcing rib is arranged in the upper valve body reinforcing rib groove; the lower valve body at the joint of the reinforcing rib and the lower valve body is provided with a lower valve body reinforcing rib groove, and the reinforcing rib is arranged in the lower valve body reinforcing rib groove.
2. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the thickness range of the heat preservation medium is 5-10 mm.
3. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the thickness of the first fluoroplastic layer ranges from 0.5mm to 1 mm.
4. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the thickness of the second fluorine plastic layer ranges from 0.1 mm to 0.5 mm.
5. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the handle and the butterfly plate in the butterfly plate with the handle are integrally formed.
6. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the upper valve body reinforcing rib groove and the lower valve body reinforcing rib groove are rectangular bayonet grooves, and the matched reinforcing ribs are rectangular reinforcing ribs.
7. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the upper valve body reinforcing rib groove and the lower valve body reinforcing rib groove are trapezoidal bayonet grooves, and the matched reinforcing ribs are trapezoidal reinforcing ribs.
8. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the thickness range of the sealing ring is 2-5 mm.
9. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the height range of the reinforcing ribs is as follows: 1-2 mm.
10. The negative pressure resistant fluorine-lined butterfly valve of claim 1, wherein: the end parts of the upper valve body and the lower valve body which are combined with the sealing ring are provided with clamping grooves, the end part of the sealing ring is provided with a buckle matched with the clamping grooves, and a bulge is arranged on the buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022024933.8U CN213451738U (en) | 2020-09-15 | 2020-09-15 | Negative pressure resistant fluorine-lined butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022024933.8U CN213451738U (en) | 2020-09-15 | 2020-09-15 | Negative pressure resistant fluorine-lined butterfly valve |
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| Publication Number | Publication Date |
|---|---|
| CN213451738U true CN213451738U (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022024933.8U Active CN213451738U (en) | 2020-09-15 | 2020-09-15 | Negative pressure resistant fluorine-lined butterfly valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115929924A (en) * | 2023-02-24 | 2023-04-07 | 无锡宝牛阀业有限公司 | Negative pressure resistant structure fluorine-lined butterfly valve |
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2020
- 2020-09-15 CN CN202022024933.8U patent/CN213451738U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115929924A (en) * | 2023-02-24 | 2023-04-07 | 无锡宝牛阀业有限公司 | Negative pressure resistant structure fluorine-lined butterfly valve |
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