Adjustable fluorine lining valve

Abstract

The utility model relates to the technical field of fluorine lining valves, and discloses an adjustable fluorine lining valve which comprises a valve body assembly, the valve body assembly comprises a valve body, the two ends of the valve body are fixedly connected with fixing flanges, the inner side faces of the fixing flanges are fixedly connected with extending pipelines, and the two ends of the valve body assembly are both provided with connecting assemblies. According to the utility model, through the arranged connecting assembly, when the external connecting flange is damaged, the whole connecting assembly can be separated from the valve body assembly, so that the connecting assembly is convenient to replace, the whole valve is prevented from being replaced, and the maintenance cost is saved; through the buffer assembly and the spiral blades, circulating liquid can be dispersed, radial thrust is generated by the liquid, and the circulating speed is reduced, so that the circulating liquid is prevented from directly acting on the valve plate, the guide head can break and guide fluid, the fluid is prevented from directly acting on the rotating shaft, and the overall service life is prolonged.

Description

Technical Field

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

[0002] Fluorine-lined valves are a special type of valve used for the control of highly corrosive media. Fluorine-lined valves, also known as fluoroplastic-lined corrosion-resistant valves, are specially designed valves to meet the control needs of highly corrosive fluids. The core feature of this type of valve is that the parts in contact with the fluid, such as the inner wall of the valve body or the outer surface of the valve trim, are lined with polytetrafluoroethylene (PTFE) or other fluoroplastic materials.

[0003] In the existing technology, the fluorine-lined butterfly valve is a type of fluorine-lined valve. The fluorine-lined butterfly valve is mainly composed of a valve body, a valve seat lining layer, a butterfly plate lining layer, a butterfly plate, an O-ring, a dustproof sealing ring and a handle. However, in an installation environment with high liquid pressure, the valve plate will be subjected to strong pressure from the liquid. Under long-term pressure, the valve plate will cause slight movement, thereby affecting the overall sealing performance of the valve, affecting its service life, and making it inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose an adjustable fluorine-lined valve. Through the setting of the connecting component, when the external connecting flange is damaged, the connecting component can be separated from the valve body component as a whole, so as to facilitate the replacement of the connecting component, thereby avoiding the replacement of the entire valve, saving maintenance costs, being more convenient to use, and having a reliable structure; through the setting of the buffer component, the spiral blades can disperse the circulating liquid, so that the liquid generates radial thrust, slows down the circulation speed, thereby avoiding the circulating liquid from directly acting on the valve plate, and the guide head can break and guide the fluid, avoiding the fluid from directly acting on the rotating shaft, thereby improving the overall service life.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An adjustable fluorine-lined valve comprises a valve body assembly, wherein the valve body assembly comprises a valve body, both ends of the valve body are fixedly connected with fixed flanges, the inner side of the fixed flange is fixedly connected with an extension pipeline, and both ends of the valve body assembly are provided with connection assemblies;

[0007] The connection assembly comprises a connection pipe, an outer end of the connection pipe is fixedly connected to an outer connection flange, an inner end of the connection pipe is fixedly connected to an inner connection flange, the inner connection flange is connected to the fixed flange via a fastener, and a buffer assembly is arranged inside the connection assembly;

[0008] The buffer assembly comprises a fixing frame fixedly installed inside the connecting pipe, a rotating shaft is rotatably connected to the fixing frame, a spiral blade is fixedly connected to the rotating shaft, and a guide head is fixedly connected to the end of the rotating shaft;

[0009] Through the above technical solution, when the external connecting flange is damaged, the connecting assembly can be separated from the valve body assembly as a whole, thereby facilitating the replacement of the connecting assembly, thereby avoiding the replacement of the entire valve, saving maintenance costs, being more convenient to use, and having a reliable structure; the spiral blades in the buffer assembly can disperse the circulating liquid, causing the liquid to generate radial thrust, slowing down the circulation speed, thereby avoiding the circulating liquid from directly acting on the valve plate, and the guide head can break and guide the fluid, avoiding the fluid from directly acting on the rotating shaft, thereby increasing the overall service life.

[0010] Furthermore, the valve body assembly further comprises a valve seat arranged on the valve body, a valve stem is arranged on the valve seat, a hand wheel is fixedly connected to the upper end of the valve stem, a valve plate is fixedly connected to the lower part of the valve stem, and the valve plate is located inside the valve body;

[0011] Through the above technical solution, the valve body assembly can realize the functions of cutting off and connecting liquid.

[0012] Further, the extension pipe extends into the interior of the connecting pipe;

[0013] Through the above technical solution, the firmness of the connection between the connecting pipe and the fixed flange is improved, making it more durable in use.

[0014] Furthermore, the fixing frame has three supporting legs, and the supporting legs are evenly arranged around the circumference;

[0015] Through the above technical solution, the stability of the fixing frame can be ensured, thereby ensuring the stability of the rotation of the rotating shaft.

[0016] Furthermore, the spiral blade is located between the guide head and the fixing frame, and a flow gap is reserved between the spiral blade and the inner wall of the connecting pipe;

[0017] The above technical solution facilitates the circulation of liquid, slows down the flow rate of liquid, and increases the service life of the valve plate.

[0018] Further, the guide head is in a conical shape;

[0019] Through the above technical solution, the conical guide head can break and guide the fluid, avoid the fluid from directly acting on the rotating shaft, and improve the overall service life.

[0020] Furthermore, the inner wall of the connecting pipe, the outer side surface of the fixing frame and the outer side surface of the guiding head are all fixedly connected with a polytetrafluoroethylene layer;

[0021] Through the above technical solution, the polytetrafluoroethylene layer has good corrosion resistance.

[0022] Furthermore, the radius of the guiding head is smaller than the radius of the spiral blade;

[0023] Through the above technical solution, it is avoided that the guiding head is too large to block the flow of liquid, ensuring the smooth flow of the valve.

[0024] The utility model has the following beneficial effects:

[0025] 1. An adjustable fluorine-lined valve proposed by the utility model can, through the provided connection component, disassemble the whole connection component from the valve body component when the external connection flange is damaged, thus facilitating the replacement of the connection component, avoiding the replacement of the whole valve, saving maintenance costs, being more convenient to use, and having a reliable structure.

[0026] 2. An adjustable fluorine-lined valve proposed by the utility model can, through the provided buffer component, disperse the flowing liquid by the spiral blade, generate a radial thrust on the liquid, slow down the flow speed, thus avoiding the flowing liquid directly acting on the valve plate, and the guiding head can break and guide the fluid, avoiding the fluid directly acting on the rotating shaft, improving the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the utility model;

[0028] Figure 2 is a structural schematic diagram of the valve body component of the utility model;

[0029] Figure 3 is a structural schematic diagram of the connection component and the buffer component of the utility model;

[0030] Figure 4 is a structural schematic diagram of the buffer component of the utility model.

[0031] LEGEND DESCRIPTION:

[0032] 1. Valve body component; 2. Connection component; 3. Buffer component; 101. Extension pipe; 102. Fixed flange; 103. Valve body body; 104. Valve seat; 105. Handwheel; 106. Valve stem; 201. Connection pipe; 202. External connection flange; 203. Internal connection flange; 301. Spiral blade; 302. Guiding head; 303. Rotating shaft; 304. Fixed frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] 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.

[0034] Example 1

[0035] Reference Figure 1-4 The utility model provides an embodiment: an adjustable fluorine-lined valve, including a valve body assembly 1, the valve body assembly 1 includes a valve body 103, both ends of the valve body 103 are fixedly connected with fixed flanges 102, the inner side of the fixed flange 102 is fixedly connected with an extension pipe 101, the extension pipe 101 extends into the interior of the connecting pipe 201, the valve body assembly 1 also includes a valve seat 104 arranged on the valve body 103, the valve seat 104 is provided with a valve stem 106, the upper end of the valve stem 106 is fixedly connected with a hand wheel 105, the lower part of the valve stem 106 is fixedly connected with a valve plate, the valve plate is located inside the valve body 103, and both ends of the valve body assembly 1 are provided with a connecting assembly 2;

[0036] The connection assembly 2 includes a connection pipe 201, the inner wall of the connection pipe 201, the outer side surface of the fixing frame 304 and the outer side surface of the guide head 302 are all fixedly connected with a polytetrafluoroethylene layer, the outer end of the connection pipe 201 is fixedly connected with an outer connection flange 202, the inner end of the connection pipe 201 is fixedly connected with an inner connection flange 203, the inner connection flange 203 is connected to the fixing flange 102 through a fastener, and a buffer assembly 3 is arranged inside the connection assembly 2;

[0037] When the outer connecting flange 202 is damaged, the connecting assembly 2 can be separated from the valve body assembly 1 as a whole, thereby facilitating the replacement of the connecting assembly 2, thereby avoiding the need to replace the entire valve, saving maintenance costs, being more convenient to use, and having a reliable structure.

[0038] The buffer assembly 3 includes a fixing frame 304 fixedly installed inside the connecting pipe 201, the fixing frame 304 has three supporting legs, and the supporting legs are evenly arranged around the circumference. A rotating shaft 303 is rotatably connected to the fixing frame 304, and a spiral blade 301 is fixedly connected to the rotating shaft 303. The spiral blade 301 is located between the guide head 302 and the fixing frame 304, and a flow gap is reserved with the inner wall of the connecting pipe 201. The end of the rotating shaft 303 is fixedly connected to the guide head 302, the radius of the guide head 302 is smaller than the radius of the spiral blade 301, and the shape of the guide head 302 is conical.

[0039] By setting the buffer component 3, the spiral blade 301 can disperse the circulating liquid, so that the liquid generates radial thrust and slows down the circulation speed, thereby preventing the circulating liquid from directly acting on the valve plate. The guide head 302 can break and guide the fluid, preventing the fluid from directly acting on the rotating shaft 303, thereby improving the overall service life.

[0040] Working principle: When in use, the valve stem 106 is controlled to rotate by the hand wheel 105, and the valve stem 106 drives the valve plate to rotate. The rotation of the valve plate can open or close the channel inside the valve body 103 to facilitate the circulation of liquid. When the outer connecting flange 202 is damaged, the inner connecting flange 203 is separated from the fasteners on the fixed flange 102, so that the connecting component 2 can be removed, so as to facilitate the replacement of the buffer component 3 and the connecting component 2. The circulating liquid will first contact the guide head 302, and the guide head 302 can break and guide the fluid to prevent the fluid from directly acting on the rotating shaft 303, thereby improving the overall service life. Then the liquid is blocked by the spiral blade 301, which reduces the liquid flow rate, prevents the fluid from directly acting on the valve plate, and prevents the valve plate from being damaged by the impact of water flow, thereby improving the overall service life.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable fluorine-lined valve, comprising a valve body assembly (1), characterized in that: The valve body assembly (1) comprises a valve body (103), both ends of the valve body (103) are fixedly connected with fixing flanges (102), the inner side of the fixing flange (102) is fixedly connected with an extension pipe (101), and both ends of the valve body assembly (1) are provided with connection assemblies (2); The connection assembly (2) comprises a connection pipe (201), the outer end of the connection pipe (201) is fixedly connected to an outer connection flange (202), the inner end of the connection pipe (201) is fixedly connected to an inner connection flange (203), the inner connection flange (203) is connected to the fixed flange (102) via a fastener, and a buffer assembly (3) is arranged inside the connection assembly (2); The buffer assembly (3) comprises a fixing frame (304) fixedly mounted inside the connecting pipe (201), a rotating shaft (303) being rotatably connected to the fixing frame (304), a spiral blade (301) being fixedly connected to the rotating shaft (303), and a guide head (302) being fixedly connected to the end of the rotating shaft (303).

2. The adjustable fluorine-lined valve according to claim 1, characterized in that: The valve body assembly (1) also includes a valve seat (104) arranged on the valve body (103), and a valve stem (106) is arranged on the valve seat (104). The upper end of the valve stem (106) is fixedly connected to a hand wheel (105), and the lower part of the valve stem (106) is fixedly connected to a valve plate, and the valve plate is located inside the valve body (103).

3. The adjustable fluorine-lined valve according to claim 1 is characterized in that: The extension pipe (101) extends into the interior of the connecting pipe (201).

4. The adjustable fluorine-lined valve according to claim 1 is characterized in that: The fixing frame (304) has three supporting legs, and the supporting legs are evenly arranged around the circumference.

5. The adjustable fluorine-lined valve according to claim 1 is characterized in that: The spiral blade (301) is located between the guide head (302) and the fixing frame (304), and a flow gap is reserved between the spiral blade (301) and the inner wall of the connecting pipe (201).

6. The adjustable fluorine-lined valve according to claim 1, characterized in that: The guide head (302) is in a conical shape.

7. The adjustable fluorine-lined valve according to claim 1 is characterized in that: The inner wall of the connecting pipe (201), the outer side surface of the fixing frame (304) and the outer side surface of the guide head (302) are all fixedly connected with a polytetrafluoroethylene layer.

8. The adjustable fluorine-lined valve according to claim 1, characterized in that: The radius of the guide head (302) is smaller than the radius of the spiral blade (301).

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