Leak-proof fluorine lining valve

Abstract

The utility model relates to the technical field of fluorine lining valves, and discloses an anti-leakage fluorine lining valve which comprises a valve assembly, the valve assembly comprises a valve body and first flange plates, the first flange plates are fixedly connected to the two ends of the valve body, a first annular groove is formed in the middle of the surface of one side of each first flange plate, and a first sealing ring is placed in each first annular groove; according to the leakproof fluorine-lined valve, through the arranged valve assembly and the corrosion-resistant assembly, the problems that according to an existing leakproof fluorine-lined valve, in order to prevent leakage, sealing rings are generally padded between flange plates, but the sealing rings cannot be rapidly and accurately placed in the middle positions between the flange plates, and the sealing rings cannot be rapidly and accurately placed in the middle positions between the flange plates are solved; once the sealing ring is obliquely placed, the flange plates still cannot be sealed; or a corrosion-resistant structure of an existing leakage-proof fluorine lining valve is generally embedded in the valve in a mold pressing mode, the service life of the valve is shortened after the valve is used for a long time, and the valve cannot be rapidly taken out and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of fluorine-lined valves, in particular to a leakage-proof fluorine-lined valve. Background Art

[0002] Fluorine-lined valves, also known as fluoroplastic-lined corrosion-resistant valves, are made by placing polytetrafluoroethylene resin (or processed profiles) on the inner wall of steel or iron valve pressure-bearing parts (the same method is applicable to the lining of various pressure vessels and pipeline accessories) or the outer surface of valve internals by molding (or inlaying) method. Various valves and pressure vessels are made by using its unique performance in resisting highly corrosive media. However, it still has the following disadvantages in actual use:

[0003] At present, when the existing leak-proof fluorine-lined valves are in use, sealing rings are generally placed between the flanges to prevent leakage. However, the sealing rings cannot be quickly and accurately placed in the middle position between the flanges. Once the sealing rings are placed at an angle, they still cannot seal between the flanges, which has certain limitations in use. Or, when the existing leak-proof fluorine-lined valves are in use, the corrosion-resistant structure is generally molded and embedded inside the valve. After long-term use, its service life is reduced, and it cannot be quickly removed or replaced, which has certain limitations in use. Therefore, it is necessary to improve an leak-proof fluorine-lined valve to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a leakage-proof fluorine-lined valve to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leakage-proof fluorine-lined valve, comprising a valve assembly, wherein the valve assembly comprises a valve body and a first flange, and the first flange is fixedly connected to both ends of the valve body, a first annular groove is provided in the middle of a surface of one side of the first flange, and a first sealing ring is placed in the first annular groove, and a corrosion-resistant assembly is provided in the valve assembly.

[0006] As a further technical solution of the utility model, the corrosion-resistant assembly includes a first corrosion-resistant part and a second corrosion-resistant part, and the second corrosion-resistant part is threadedly connected to one end of the first corrosion-resistant part, and a through hole is penetrated through the upper part of one side of the peripheral surface of the second corrosion-resistant part.

[0007] As a further technical solution of the utility model, a connecting piece is fixedly connected to the middle of one end surface of the first corrosion-resistant part, and a thread groove is provided in the middle of one end surface of the second corrosion-resistant part, and the connecting piece is threadedly connected inside the thread groove.

[0008] As a further technical solution of the utility model, a groove is arranged on the surface of one side of the first flange, and the total number of the groove and the first annular groove is two.

[0009] As a further technical solution of the utility model, a second flange is fixedly connected to the middle part of the circumferential surface of the valve body, and an adjusting assembly is fastened to the upper end of the second flange.

[0010] As a further technical solution of the utility model, the adjustment assembly includes a third flange and a second annular groove, and the second annular groove is arranged on the upper surface of the third flange, and a second sealing ring is placed in the second annular groove.

[0011] As a further technical solution of the utility model, a rotating rod is rotatably connected to the middle of the third flange, and a rotating disk is fixedly connected to the upper end of the rotating rod.

[0012] Compared with the prior art, the utility model provides a leak-proof fluorine-lined valve with the following features:

[0013] Beneficial effects:

[0014] 1. The leak-proof fluorine-lined valve has the effect of improving its leak-proof performance through the arranged valve assembly, and solves the problem that the existing leak-proof fluorine-lined valve is generally padded between the flanges to prevent leakage during use, but the sealing ring cannot be quickly and accurately placed in the middle position between the flanges. Once the sealing ring is placed at an angle, it still cannot seal between the flanges, and there are certain limitations in use.

[0015] 2. This leak-proof fluorine-lined valve has the effect of facilitating the replacement of the corrosion-resistant structure by means of the corrosion-resistant components, thereby solving the problem that the corrosion-resistant structure of the existing leak-proof fluorine-lined valve is generally molded and embedded inside the valve during use, and its service life is reduced after long-term use, and it cannot be quickly removed and replaced, which results in certain limitations in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the valve assembly structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the corrosion-resistant component structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the regulating component of the utility model.

[0021] In the figure: 1. valve assembly; 11. valve body; 12. first flange; 121. first annular groove; 122. groove; 13. second flange; 2. corrosion-resistant assembly; 21. first corrosion-resistant part; 22. second corrosion-resistant part; 221. through hole; 222. threaded groove; 23. connecting part; 3. first sealing ring; 4. adjusting assembly; 41. third flange; 411. second annular groove; 42. rotating rod; 43. rotating disk; 5. second sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-4The utility model provides a technical solution: a leak-proof fluorine-lined valve, including a valve assembly 1, the valve assembly 1 includes a valve body 11 and a first flange 12, and the first flange 12 is fixedly connected to both ends of the valve body 11, a first annular groove 121 is arranged in the middle of one side surface of the first flange 12, and a first sealing ring 3 is placed in the first annular groove 121, and a corrosion-resistant assembly 2 is arranged in the valve assembly 1; the corrosion-resistant assembly 2 includes a first corrosion-resistant part 21 and a second corrosion-resistant part 22, and the second corrosion-resistant part 22 is threadedly connected to one end of the first corrosion-resistant part 21, and the upper part of one side of the circumferential surface of the second corrosion-resistant part 22 is penetrated A through hole 221 is provided through it; a connecting piece 23 is fixedly connected to the middle of the surface of one end of the first corrosion-resistant part 21, and a threaded groove 222 is provided in the middle of the surface of one end of the second corrosion-resistant part 22, and the connecting piece 23 is threadedly connected inside the threaded groove 222; a groove 122 is provided on the surface of one side of the first flange 12, and the total number of the groove 122 and the first annular groove 121 are both two; a second flange 13 is fixedly connected to the middle of the peripheral surface of the valve body 11, and an adjusting component 4 is fastened to the upper end of the second flange 13. It should be added that the materials of the first corrosion-resistant part 21 and the second corrosion-resistant part 22 are both polytetrafluoroethylene resin.

[0025] Among them Figure 4 As shown, the adjustment component 4 includes a third flange 41 and a second annular groove 411, and the second annular groove 411 is arranged on the upper surface of the third flange 41, and a second sealing ring 5 is placed in the second annular groove 411; a rotating rod 42 is rotatably connected to the middle of the third flange 41, and a rotating disk 43 is fixedly connected to the upper end of the rotating rod 42; specifically, the bottom end of the rotating rod 42 is connected to a switch member that can control the opening or closing of the valve, and the valve can be opened or closed by rotating the rotating disk 43 clockwise or counterclockwise, and there is a sealing structure at the connection between the rotating rod 42 and the through hole 221 to ensure that the relevant liquid and gas will not leak from the gap between the through hole 221 and the rotating rod 42. This method is an existing mature technology and is not a technical point, so there is no need to make too much introduction.

[0026] The working principle of the utility model is as follows: when the leak-proof fluorine-lined valve is in use, it is only necessary to rotate the turntable 43 clockwise or counterclockwise to open or close the switch connected to the bottom of the rotating rod 42, thereby controlling the circulation or shutting down of liquid or gas. After the fluorine-lined valve has been used for a long time, the internal molded corrosion-resistant component 2 will be damaged due to long-term corrosion, and the corrosion-resistant component 2 needs to be replaced. When replacing, it is first necessary to disassemble the switch and the rotating rod 42, and then rotate the first corrosion-resistant component 21 and the second corrosion-resistant component 22 in opposite directions to disassemble the corrosion-resistant component 2, and then use the opposite method to fix the new corrosion-resistant component 2 inside the valve component 1. When fixing the first sealing ring 3 and the second sealing ring 5, it is only necessary to quickly place the two in the first annular groove 121 and the second annular groove 411 respectively, which can effectively avoid the first sealing ring 3 and the second sealing ring 5 from being offset and tilted, thereby improving the anti-leakage performance of the fluorine-lined valve. It is relatively convenient and practical and deserves to be vigorously promoted.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A leak-proof fluorine-lined valve, It is characterized in that The valve assembly (1) comprises a valve body (11) and a first flange (12), wherein the first flange (12) is fixedly connected to both ends of the valve body (11), a first annular groove (121) is provided in the middle of a surface of one side of the first flange (12), and a first sealing ring (3) is placed in the first annular groove (121), and a corrosion-resistant assembly (2) is provided in the valve assembly (1); The corrosion-resistant assembly (2) comprises a first corrosion-resistant part (21) and a second corrosion-resistant part (22), wherein the second corrosion-resistant part (22) is threadedly connected to one end of the first corrosion-resistant part (21), and a through hole (221) is provided through an upper portion of one side of a peripheral surface of the second corrosion-resistant part (22); A connecting piece (23) is fixedly connected to the middle of one end surface of the first corrosion-resistant piece (21), and a thread groove (222) is provided in the middle of one end surface of the second corrosion-resistant piece (22), and the connecting piece (23) is threadedly connected inside the thread groove (222); A groove (122) is provided on one side surface of the first flange (12), and the total number of the groove (122) and the first annular groove (121) is two; A second flange (13) is fixedly connected to the middle of the circumferential surface of the valve body (11), and an adjustment assembly (4) is fastened to the upper end of the second flange (13); The adjustment assembly (4) comprises a third flange (41) and a second annular groove (411), wherein the second annular groove (411) is arranged on the upper surface of the third flange (41), and a second sealing ring (5) is placed in the second annular groove (411).

2. A leak-proof fluorine-lined valve according to claim 1, It is characterized in that A rotating rod (42) is rotatably connected to the middle of the third flange (41), and a rotating disk (43) is fixedly connected to the upper end of the rotating rod (42).

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