Anti-crystallization ball valve

Abstract

The utility model relates to the technical field of valves, in particular to an anti-crystallization ball valve, which comprises a ball valve main body, a scraping component and a control component, the ball valve main body comprises a valve body and a valve rod, a valve seat and a valve core are arranged in the valve body, a sealing ring matched with the valve core to form a seal is arranged on the valve seat, the valve rod is arranged on the valve body, and the scraping component is arranged on the valve rod. The valve rod is connected with the valve core; the scraping assembly comprises a fixing frame, a fixing box, a fixing shaft, a connecting block and a spiral blade, the fixing frame is arranged at the inlet channel of the valve body, the fixing box is arranged on the fixing frame, the fixing shaft is rotationally installed on the fixing box, the fixing shaft is connected with the spiral blade through the connecting block, and the connecting block is arranged on the fixing frame. The spiral blade is in sliding fit with the side wall of the ball body; the control assembly is used for controlling rotation of the fixing shaft. According to the ball valve, crystals in the valve body and on the valve element are scraped, stirred and conveyed through the scraping assembly and the control assembly, and the sealing performance of the ball valve is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an anti-crystallization ball valve. Background Art

[0002] The ball and valve seat are the most important sealing parts in the valve. The sealing cooperation between the two affects the sealing performance of the entire valve. The ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. Ball valves are divided into soft-sealed ball valves and hard-sealed ball valves. Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to rotate 90 degrees and a very small torque to close tightly. Ball valves are most suitable for use as switches and cut-off valves, V-type ball valves.

[0003] At present, when the ball valve is working, due to the impurities in the liquid, the inlet channel of the ball valve and the contact surface between the ball and the inlet channel will easily crystallize. Rotating the ball may drive these crystals into the space between the valve seat and the ball, which may easily affect the tightness of the contact between the ball and the valve seat, which will seriously affect the sealing performance of the ball valve. Utility Model Content

[0004] The utility model provides an anti-crystallization ball valve, which can improve the technical problem in the related art that crystals are easily accumulated on the inlet channel of the ball valve and the contact surface between the ball and the inlet channel, thus affecting the sealing performance of the ball valve.

[0005] The embodiment of the present application provides an anti-crystallization ball valve, comprising:

[0006] A ball valve body, a scraper assembly and a control assembly, wherein the ball valve body includes a valve body and a valve stem, wherein a valve seat and a valve core are arranged in the valve body, wherein a sealing ring is arranged on the valve seat to form a seal with the valve core, and the valve stem is arranged on the valve body and connected to the valve core;

[0007] The scraping assembly includes a fixing frame, a fixing box, a fixing shaft, a connecting block and a spiral blade, wherein the fixing frame is arranged at the inlet passage of the valve body, the fixing box is arranged on the fixing frame, the fixing shaft is rotatably mounted on the fixing box, the fixing shaft is connected to the spiral blade through the connecting block, the spiral blade is slidably fitted with the side wall of the sphere, and the spiral blade is slidably fitted with the inner wall of the passage at the inlet of the valve body;

[0008] The control component is used to control the rotation of the fixed shaft.

[0009] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0010] When crystals form on the inlet channel of the ball valve and on the contact surface between the valve core and the inlet channel, the control component is started, the fixed shaft rotates, the connecting block flips over, the spiral blades rotate, and the spiral blades slide and fit against the inner wall of the channel at the water inlet of the valve body to scrape off the crystals on the inner wall of the inlet channel; the side wall of the ball body slides and fits against the crystals on the contact surface between the valve core and the inlet channel, making it difficult for the crystals to enter between the valve core and the valve seat, thereby increasing the sealing performance of the ball valve. Rotating the valve core can increase the scraping area of ​​the spiral blades, and when the ball valve is opened, the rotating spiral blades can stir and transport the crystals. Therefore, the fixed shaft rotates, the connecting block flips over, the spiral blades rotate, and the spiral blades rotate to stir and transport the crystals. The setting of the frame is used to set the control component, the connecting block and the spiral blade at the inlet of the valve body; the setting of the control component, the fixing frame, the fixing box, the fixing shaft, the connecting block and the spiral blade is used to scrape off the crystals generated in the inlet channel of the ball valve and the crystals generated on the contact surface between the valve core and the inlet channel, and the operation is simple and convenient; and the spiral blade has the function of stirring and transporting the crystals during the rotation process. For the crystals caused by supersaturation, the generation of crystals can be reduced by stirring the liquid; this can increase the solubility of the liquid, reduce the precipitation of the solute, and transport the scraped crystals to the outside of the valve body along with the flow of the liquid.

[0011] An anti-crystallization ball valve provided in an embodiment of the present application can scrape off crystals in the inlet channel of the valve body by rotating the spiral blade, scrape off crystals on the contact surface between the valve core and the inlet channel, stir and transport the scraped crystals, and transport the crystals to the outside of the valve body along with the flow of liquid, making it difficult for them to affect the tightness of the contact between the ball and the valve seat, thereby enhancing the sealing of the ball valve.

[0012] In some embodiments, the control assembly includes a first bevel gear, a second bevel gear and an output shaft, the first bevel gear and the second bevel gear are both arranged in a fixed box, the output shaft seal at one end of the fixed shaft away from the connecting block passes through the side wall of the fixed box and is connected to the first bevel gear, the output shaft is rotatably arranged on the valve body, the output shaft seal passes through the side wall of the fixed box and is connected to the second bevel gear, and the first bevel gear is vertically meshed with the second bevel gear.

[0013] In some embodiments, the control assembly further includes a motor, which is mounted on the valve body via a bracket, and one end of the output shaft away from the second bevel gear extends out of the valve body and is connected to an output end of the motor.

[0014] In some embodiments, a sealing strip is provided between the output shaft and the valve body.

[0015] In some embodiments, one end of the valve stem away from the valve body passes through the valve body and is connected to a handle, and a sealing filler is arranged between the valve stem and the valve body.

[0016] In some embodiments, flanges are provided on both sides of the valve body, and threaded holes are provided on the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the side structure of an anti-crystallization ball valve provided in an embodiment of the present application;

[0019] Figure 2 Schematic diagram of the internal structure of the valve body;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the scraping component and the control component after the cross section of the fixed box.

[0021] Among them, the reference numerals in the figure are:

[0022] 10. Ball valve body; 11. Valve body; 12. Valve stem; 13. Valve seat; 14. Valve core; 15. Sealing ring; 16. Handle; 17. Sealing packing; 18. Flange; 181. Threaded hole; 20. Scraping assembly; 21. Fixed frame; 22. Fixed box; 23. Fixed shaft; 24. Connecting block; 25. Spiral blade; 30. Control assembly; 31. First bevel gear; 32. Second bevel gear; 33. Output shaft; 34. Bracket; 35. Motor; 36. Sealing strip. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] The ball and valve seat are the most important sealing parts in the valve. The sealing cooperation between the two affects the sealing performance of the entire valve. The ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. Ball valves are divided into soft-sealed ball valves and hard-sealed ball valves. Ball valves are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to rotate 90 degrees and a very small torque to close tightly. Ball valves are most suitable for use as switches and cut-off valves, V-type ball valves.

[0031] At present, when the ball valve is working, due to the impurities in the liquid, the inlet channel of the ball valve and the contact surface between the ball and the inlet channel will easily crystallize. Rotating the ball may drive these crystals into the space between the valve seat and the ball, which may easily affect the tightness of the contact between the ball and the valve seat, which will seriously affect the sealing performance of the ball valve.

[0032] Based on this, the technical problem in the related art that crystals easily accumulate on the inlet channel of the ball valve and the contact surface between the ball and the inlet channel, thus affecting the sealing performance of the ball valve, can be improved. The embodiments of the present application provide the following solution.

[0033] Please also read Figure 1 and Figure 3 The embodiment of the present application provides an anti-crystallization ball valve, a ball valve body 10, a scraper assembly 20 and a control assembly 30, the ball valve body 10 includes a valve body 11 and a valve stem 12, a valve seat 13 and a valve core 14 are arranged in the valve body 11, a sealing ring 15 is arranged on the valve seat 13 to form a seal with the valve core 14, the valve stem 12 is arranged on the valve body 11, and is connected to the valve core 14;

[0034] The scraping assembly 20 includes a fixing frame 21, a fixing box 22, a fixing shaft 23, a connecting block 24 and a spiral blade 25. The fixing frame 21 is arranged at the inlet passage of the valve body 11, the fixing box 22 is arranged on the fixing frame 21, the fixing shaft 23 is rotatably mounted on the fixing box 22, the fixing shaft 23 is connected to the spiral blade 25 through the connecting block 24, the spiral blade 25 is slidably fitted with the side wall of the sphere, and the spiral blade 25 is slidably fitted with the inner wall of the passage at the inlet of the valve body 11;

[0035] The control assembly 30 is used to control the rotation of the fixed shaft 23 .

[0036] When crystals form on the inlet channel of the ball valve and on the contact surface between the valve core 14 and the inlet channel, the control assembly 30 is started, the fixed shaft 23 rotates, the connecting block 24 flips over, the spiral blade 25 rotates, and the spiral blade 25 slides and fits with the inner wall of the channel at the water inlet of the valve body 11 to scrape off the crystals on the inner wall of the inlet channel; the side wall of the ball body slides and fits, and the rotating spiral blade 25 scrapes off the crystals on the contact surface between the valve core 14 and the inlet channel, making it difficult for the crystals to enter between the valve core 14 and the valve seat 13, thereby increasing the sealing performance of the ball valve. Rotating the valve core 14 can increase the scraping area of ​​the spiral blade 25, and opening the ball valve, the rotating spiral blade 25 can stir and transport the crystals, therefore, the fixed The setting of the frame 21 is used to set the control component 30, the connecting block 24 and the spiral blade 25 at the entrance of the valve body 11; the setting of the control component 30, the fixed frame 21, the fixed box 22, the fixed shaft 23, the connecting block 24 and the spiral blade 25 is used to scrape off the crystals generated in the inlet channel of the ball valve and the crystals generated on the contact surface between the valve core 14 and the inlet channel, and the operation is simple and convenient; and the spiral blade 25 during the rotation process has the function of stirring and transporting the crystals. For the crystals caused by supersaturation, the generation of crystals can be reduced by stirring the liquid; this can increase the solubility of the liquid, reduce the precipitation of the solute, and transport the scraped crystals to the outside of the valve body 11 along with the flow of the liquid.

[0037] Optionally, in some embodiments, please read Figures 2 to 3 The control assembly 30 includes a first bevel gear 31, a second bevel gear 32 and an output shaft 33. The first bevel gear 31 and the second bevel gear 32 are both arranged in the fixed box 22. The output shaft 33 at one end of the fixed shaft 23 away from the connecting block 24 is sealed to pass through the side wall of the fixed box 22 and is connected to the first bevel gear 31. The output shaft 33 is rotatably arranged on the valve body 11. The output shaft 33 is sealed to pass through the side wall of the fixed box 22 and is connected to the second bevel gear 32. The first bevel gear 31 is vertically meshed with the second bevel gear 32.

[0038] With such arrangement, the output shaft 33 is rotated, the second bevel gear 32 is rotated, the first bevel gear 31 is rotated, and the connecting block 24 is turned over, the spiral blade 25 is rotated, and the spiral blade 25 slides and fits with the inner wall of the channel at the water inlet of the valve body 11 to scrape off the crystals on the inner wall of the inlet channel; the side wall of the spherical body slides and fits, and the rotating spiral blade 25 scrapes off the crystals on the contact surface between the valve core 14 and the inlet channel, making it difficult for the crystals to enter between the valve core 14 and the valve seat 13, thereby increasing the sealing performance of the ball valve. Therefore, the arrangement of the first bevel gear 31, the second bevel gear 32 and the output shaft 33 makes it convenient for the user to control the rotation of the connecting block 24.

[0039] Optionally, in some embodiments, please read Figures 2 to 3The control assembly further includes a motor 35 , which is mounted on the valve body 11 via a bracket 34 . An end of the output shaft 33 away from the second bevel gear 32 extends outside the valve body 11 and is connected to an output end of the motor 35 .

[0040] With such arrangement, the motor 35 is started, the output shaft 33 rotates, the second bevel gear 32 rotates, the first bevel gear 31 rotates, and drives the fixed shaft 23 to rotate, the connecting block 24 flips over, and the spiral blade 25 rotates. The spiral blade 25 slides and fits with the inner wall of the channel at the water inlet of the valve body 11 to scrape off the crystals on the inner wall of the inlet channel; the side wall of the sphere slides and fits, and the rotating spiral blade 25 scrapes off the crystals on the contact surface between the valve core 14 and the inlet channel, making it difficult for the crystals to enter between the valve core 14 and the valve seat 13. Therefore, the arrangement of the first bevel gear 31, the second bevel gear 32 and the output shaft 33 makes it convenient for the user to control the rotation of the fixed shaft 23.

[0041] Optionally, in some embodiments, see Figure 2 A sealing strip 36 is provided between the output shaft 33 and the valve body 11 .

[0042] During the rotation of the output shaft 33, liquid easily enters the connection between the output shaft 33 and the valve body 11 and contacts the sealing strip 36; therefore, the sealing strip 36 is provided to improve the sealing between the valve body 11 and the output shaft 33, thereby increasing the service life of the ball valve.

[0043] Optionally, in some embodiments, see Figure 1 to Figure 2 One end of the valve stem 12 away from the valve body 11 passes through the valve body 11 and is connected to a handle 16 .

[0044] With such arrangement, when the ball valve needs to be opened, the handle 16 is turned, the valve stem 12 is rotated, and the valve core 14 is driven to rotate, so that the valve body 11 channel is aligned with the valve core 14 channel, and the liquid can flow through the valve body 11 channel and the valve core 14 channel. At this time, the motor 35 is started, the fixed shaft 23 is rotated, the connecting block 24 is turned over, and the spiral blade 25 is rotated to scrape off the crystals on the inner wall of the channel at the entrance of the valve body 11, and the rotating spiral blade 25 can cooperate with the liquid flow to stir and transport the crystals. For crystals caused by supersaturation, the generation of crystals can be reduced by stirring the liquid, until Until the crystals are transported to the outside of the valve body 11; when the ball valve needs to be closed, the handle 16 is turned, the valve stem 12 rotates, and the valve core 14 is driven to rotate, so that the valve body 11 channel is away from the valve core 14 channel, at this time, the motor 35 is started, the fixed shaft 23 rotates, the connecting block 24 flips, and the spiral blade 25 rotates to scrape off the crystals on the inner wall of the channel at the entrance of the valve body 11, and the crystals on the contact surface between the valve core 14 and the entrance channel are scraped off, making it difficult for the crystals to enter between the valve core 14 and the valve seat 13, thereby increasing the sealing of the ball valve. Therefore, the setting of the handle 16 is convenient for the user to open or close the ball valve.

[0045] Optionally, in some embodiments, see Figure 1 to Figure 2 A sealing packing 17 is provided between the valve stem 12 and the valve body 11 .

[0046] With such arrangement, during the rotation of the valve core 14, liquid easily enters the connection between the valve stem 12 and the valve body 11 and contacts the sealing packing 17. Therefore, the arrangement of the sealing packing 17 is used to improve the sealing performance between the valve body 11 and the valve stem 12, thereby increasing the service life of the ball valve.

[0047] Optionally, in some embodiments, see Figure 1 to Figure 2 Flanges 18 are provided on both sides of the valve body 11 , and threaded holes 181 are opened on the flanges 18 .

[0048] With such arrangement, when installing the ball valve, the ball valve is placed between two pipes and connected and fixed through the threaded holes 181 on the flange 18. Therefore, the arrangement of the flange 18 and the threaded holes 181 facilitates the user to install the ball valve on the pipe.

[0049] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An anti-crystallization ball valve, characterized in that: include: A ball valve body (10), a scraper assembly (20) and a control assembly (30), wherein the ball valve body (10) comprises a valve body (11) and a valve stem (12), wherein a valve seat (13) and a valve core (14) are arranged in the valve body (11), wherein a sealing ring (15) is arranged on the valve seat (13) and cooperates with the valve core (14) to form a seal, and the valve stem (12) is arranged on the valve body (11) and connected to the valve core (14); The scraping assembly (20) comprises a fixing frame (21), a fixing box (22), a fixing shaft (23), a connecting block (24) and a spiral blade (25); the fixing frame (21) is arranged at the inlet channel of the valve body (11); the fixing box (22) is arranged on the fixing frame (21); the fixing shaft (23) is rotatably mounted on the fixing box (22); the fixing shaft (23) is connected to the spiral blade (25) through the connecting block (24); the spiral blade (25) is slidably fitted to the side wall of the sphere; and the spiral blade (25) is slidably fitted to the inner wall of the channel at the inlet of the valve body (11); The control component (30) is used to control the rotation of the fixed shaft (23).

2. The anti-crystallization ball valve according to claim 1, characterized in that: The control assembly (30) comprises a first bevel gear (31), a second bevel gear (32) and an output shaft (33). The first bevel gear (31) and the second bevel gear (32) are both arranged in a fixed box (22). The output shaft (33) at one end of the fixed shaft (23) away from the connecting block (24) seals through the side wall of the fixed box (22) and is connected to the first bevel gear (31). The output shaft (33) is rotatably arranged on the valve body (11). The output shaft (33) seals through the side wall of the fixed box (22) and is connected to the second bevel gear (32). The first bevel gear (31) and the second bevel gear (32) are vertically meshed.

3. The anti-crystallization ball valve according to claim 2, characterized in that: The control assembly (30) further comprises a motor (35), wherein the motor (35) is mounted on the valve body (11) via a bracket (34), and an end of the output shaft (33) away from the second bevel gear (32) extends outside the valve body (11) and is connected to an output end of the motor (35).

4. An anti-crystallization ball valve according to any one of claims 2-3, characterized in that: A sealing strip (36) is provided between the output shaft (33) and the valve body (11).

5. The anti-crystallization ball valve according to claim 4, characterized in that: One end of the valve stem (12) away from the valve body (11) passes through the valve body (11) and is connected to a handle (16); a sealing filler (17) is provided between the valve stem (12) and the valve body (11).

6. The anti-crystallization ball valve according to claim 1, characterized in that: Flange plates (18) are arranged on both sides of the valve body (11), and threaded holes (181) are opened on the flange plates (18).

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