High-stability anti-freezing butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a high-stability anti-freezing butterfly valve which comprises a valve body, a base is fixedly installed at the bottom of the valve body, a valve plate is rotatably installed in the valve body, and a heat exchange assembly is arranged in the valve body. By arranging the heat exchange assembly, heat conduction oil with the increased temperature can flow along the inner wall of a heat exchange cavity and heat part space of the outer edge of a valve plate at the same time, and through the deformability of an elastic spiral band, the heat conduction oil can flow along the spiral outer surface of the elastic spiral band in a stepping mode in the process of flowing in the heat exchange cavity; meanwhile, an elastic spiral band can be driven by the heat conduction oil to move along the outer side of a fixed plastic ring in a circular path, the heat conduction oil is further promoted to flow, the heat exchange efficiency of the heat conduction oil is improved, and the heat conduction efficiency of the heat conduction oil is improved. And the butterfly valve is effectively prevented from being frozen.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, specifically a high-stability antifreeze butterfly valve. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve used for on / off control of low-pressure pipeline media. A butterfly valve is characterized by a disc as the closing element, which rotates around a valve shaft to open and close. Butterfly valves are required when controlling the flow of various types of fluids, including air, water, steam, various corrosive media, mud, oil, liquid metals, and radioactive media.

[0003] According to a published article on a relatively stable antifreeze butterfly valve (publication number: CN214999450U), in the above application, water is injected into the heating pipe through the inlet pipe, and then the heater is turned on to heat the water inside the heating pipe, thereby increasing the temperature of the butterfly valve and reducing the possibility of the butterfly valve freezing due to low temperature when used outdoors.

[0004] However, when the above-mentioned equipment heats the inside of the butterfly valve through the continuous flow and heating of hot water, the contact efficiency between the hot water and the inside of the butterfly valve near the valve core is limited. This can easily lead to a large temperature difference between the inside and outside of the heat exchange chamber, and the outside of the butterfly valve is more likely to become brittle in cold external environments, affecting the service life of the butterfly valve. In view of this, we propose a highly stable antifreeze butterfly valve. Utility Model Content

[0005] The purpose of this invention is to provide a highly stable antifreeze butterfly valve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-stability anti-freeze butterfly valve, comprising a valve body, a base fixedly installed at the bottom of the valve body, a valve plate rotatably installed inside the valve body, and a heat exchange assembly disposed inside the valve body, the heat exchange assembly comprising:

[0007] A heat exchange chamber is formed on the inner wall of the valve body. A discharge valve is fixedly installed at the bottom of the valve body, a circulation pump is fixedly installed at the top of the valve body, a heating controller is fixedly installed on the outer wall of the top of the valve body, and a heating metal plate is fixedly installed on the arc-shaped inner wall of the top of the heat exchange chamber.

[0008] An elastic spiral strip is disposed inside the heat exchange chamber. A through hole is provided on the inner wall at the center of the elastic spiral strip. A fixing plastic ring is disposed inside the through hole. A convex ball is fixedly installed on the outer wall of the fixing plastic ring. A through hole is provided on the inner wall of the elastic spiral strip.

[0009] Preferably, the heat exchange chamber is filled with heat transfer oil, and the discharge valve is located directly below the valve body. The discharge valve is connected to the heat exchange chamber, so that the heat transfer oil filled in the heat exchange chamber can be completely discharged and replaced after the discharge valve is opened.

[0010] Preferably, the two sides of the elastic spiral band are in contact with the arc-shaped inner surface of the heat exchange cavity, and the elastic spiral band is in a ring-shaped spiral, so that the elastic spiral band can divide the interior of the heat exchange cavity into two relatively independent spaces.

[0011] Preferably, the number of convex balls is set to two sets, and the two sets of convex balls are symmetrically arranged with the vertical central axis of the valve body as the axis of symmetry. The elastic spiral band is arranged between the two sets of convex balls. Through the deformability of the elastic spiral band, the heat transfer oil will flow along the spiral outer surface of the elastic spiral band during the flow in the heat exchange chamber.

[0012] Preferably, a swing assembly is provided on the outer side of the fixed plastic ring. The swing assembly includes a small sleeve, which is sleeved on the outer side of the fixed plastic ring. A magnetic block is fixedly installed on the arc-shaped outer wall of the small sleeve, and a turbulence ring is fixedly installed on the bottom end face of the small sleeve.

[0013] Preferably, there are two sets of fixed plastic rings, and the two sets of fixed plastic rings are coaxially arranged to better maintain the circular state of the elastic spiral belt. At the same time, the number of swing components corresponds one-to-one with the number of fixed plastic rings.

[0014] Preferably, the magnetic blocks corresponding to the outer sides of the two sets of fixed plastic rings have the same magnetism, so that when the elastic spiral belt swings due to the flow of heat transfer oil, the repulsive force between the magnetic blocks corresponding to the two sets of small sleeves causes the small sleeves and the turbulence ring to slide on the fixed plastic rings.

[0015] Compared with the prior art, this utility model provides a highly stable antifreeze butterfly valve, which has the following characteristics:

[0016] Beneficial effects:

[0017] 1. This high-stability anti-freeze butterfly valve is equipped with a heat exchange component. Driven by a circulating pump, the heat transfer oil flows inside the heat exchange chamber. This allows the heated heat transfer oil to flow along the inner wall of the heat exchange chamber while simultaneously heating the outer edge of the valve plate. The deformable elastic spiral band allows the heat transfer oil to flow along its spiral outer surface within the heat exchange chamber, ensuring uniform heat exchange between the outer and inner sides of the chamber and maintaining the temperature balance of the heat transfer oil. Furthermore, the heat transfer oil drives the elastic spiral band to move in a circular path along the outer side of the fixed plastic ring, further promoting the flow of the heat transfer oil, improving its heat exchange efficiency, and effectively preventing the butterfly valve from freezing.

[0018] 2. This high-stability antifreeze butterfly valve is equipped with a swing-back assembly. When the elastic spiral band swings due to the flow of heat transfer oil, the repulsive force between the magnetic blocks corresponding to the two sets of small sleeves causes the small sleeves and the turbulence ring to slide on the fixed plastic ring. This causes the arc surface of the elastic spiral band to swing up and down, thereby promoting the flow of heat transfer oil in the heat exchange chamber and ensuring the heating and antifreeze effect of the heat transfer oil on the butterfly valve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the elastic spiral belt structure of this utility model;

[0022] Figure 4 This is an exploded view of the elastic spiral belt and fixing ring of this utility model;

[0023] Figure 5 This is a schematic diagram of the movable sleeve structure of this utility model.

[0024] In the diagram: 1. Valve body; 2. Base; 3. Valve plate; 4. Heat exchange assembly; 41. Heat exchange chamber; 42. Discharge valve; 43. Circulation pump; 44. Heating controller; 45. Heating metal plate; 46. Elastic spiral belt; 461. Through hole; 47. Fixing plastic ring; 48. Convex ball; 49. Through hole; 5. Swing assembly; 51. Small sleeve; 52. Magnetic block; 53. Turbulence ring. Detailed Implementation

[0025] like Figures 1-5As shown, this utility model provides a technical solution: a high-stability antifreeze butterfly valve, including a valve body 1, a base 2 fixedly installed at the bottom of the valve body 1, a valve plate 3 rotatably installed inside the valve body 1, and a heat exchange assembly 4 provided inside the valve body 1. The heat exchange assembly 4 includes a heat exchange chamber 41, a discharge valve 42, a circulation pump 43, a heating controller 44, a heating metal plate 45, an elastic spiral belt 46, a through hole 461, a fixing plastic ring 47, a convex ball 48, and a through hole 49.

[0026] In one embodiment of this utility model, a heat exchange chamber 41 is formed on the inner wall of a valve body 1. A discharge valve 42 is fixedly installed at the bottom of the valve body 1, a circulation pump 43 is fixedly installed at the top of the valve body 1, a heating controller 44 is fixedly installed on the outer wall of the top of the valve body 1, a heating metal plate 45 is fixedly installed on the arc-shaped inner wall of the top of the heat exchange chamber 41, an elastic spiral band 46 is provided inside the heat exchange chamber 41, a through hole 461 is formed on the inner wall at the center of the elastic spiral band 46, a fixing plastic ring 47 is provided inside the through hole 461, a convex ball 48 is fixedly installed on the outer wall of the fixing plastic ring 47, and a through hole 49 is formed on the inner wall of the elastic spiral band 46.

[0027] Furthermore, an adjustment chamber is provided on the top of the valve body 1, and a handwheel is rotatably mounted on the side wall of the adjustment chamber. The rotating shaft of the handwheel passes through the interior of the adjustment chamber, and a worm gear transmission structure is provided inside the adjustment chamber. In addition, the rotating shaft of the valve plate 3 passes through the valve body 1 and enters the interior of the adjustment chamber. By rotating the handwheel, in conjunction with the worm gear transmission structure, the rotating shaft of the valve plate 3 is driven to rotate, thereby realizing the opening and closing of the regulating butterfly valve.

[0028] For details, please refer to the instruction manual appendix. Figures 1-4In this embodiment of the invention, the heat exchange chamber 41 is filled with heat transfer oil, and the discharge valve 42 is located directly below the valve body 1. The discharge valve 42 is internally connected to the heat exchange chamber 41, allowing the heat transfer oil inside the heat exchange chamber 41 to be completely discharged and replaced after the discharge valve 42 is opened. Furthermore, both the output and input ends of the circulation pump 43 are internally connected to the heat exchange chamber 41, enabling the heat transfer oil inside the heat exchange chamber 41 to circulate within the chamber after the circulation pump 43 is started. Additionally, the heating controller 44 is internally equipped with… The power supply equipment and the power supply equipment in the heating controller 44 are electrically connected to the heating metal plate 45, so that the heating controller 44 can control the heating metal plate 45 to generate heat, so that the heat transfer oil flowing to the top space of the heat exchange chamber 41 can be heated, and the heat transfer oil is driven by the circulation pump 43 to make the heat transfer oil flow inside the heat exchange chamber 41, so that the heated heat transfer oil can flow along the inner wall of the heat exchange chamber 41 and heat the outer edge of the valve plate 3, so as to avoid the butterfly valve from freezing inside due to the low temperature of the external environment, which would affect the normal use of the butterfly valve.

[0029] Furthermore, the two side surfaces of the elastic spiral band 46 are in contact with the arc-shaped inner surface of the heat exchange chamber 41, and the elastic spiral band 46 is in a ring-shaped spiral, which allows the elastic spiral band 46 to divide the interior of the heat exchange chamber 41 into two relatively independent spaces. These two relatively independent spaces are connected by a through hole 49. In addition, there are two sets of convex balls 48, and the two sets of convex balls 48 are symmetrically arranged about the vertical central axis of the valve body 1. The elastic spiral band 46 is located between the two sets of convex balls 48. Through the deformability of the elastic spiral band 46, the heat transfer oil will flow along the spiral outer surface of the elastic spiral band 46 during the flow in the heat exchange chamber 41, thereby promoting uniform heat exchange between the outer and inner sides of the heat exchange chamber 41 to ensure the temperature balance of the heat transfer oil. At the same time, the heat transfer oil can also drive the elastic spiral band 46 to move along the outer side of the fixed plastic ring 47 in a circular path, further promoting the flow of the heat transfer oil, improving the heat exchange efficiency of the heat transfer oil, and effectively preventing the butterfly valve from freezing.

[0030] In an embodiment of this utility model, a swing assembly 5 is provided on the outer side of the fixed plastic ring 47. The swing assembly 5 includes a small sleeve 51, which is sleeved on the outer side of the fixed plastic ring 47. A magnetic block 52 is fixedly installed on the arc-shaped outer wall of the small sleeve 51, and a turbulence ring 53 is fixedly installed on the bottom end face of the small sleeve 51.

[0031] Specifically, two sets of fixed plastic rings 47 are provided, and the two sets of fixed plastic rings 47 are coaxially arranged to better maintain the circular state of the elastic spiral band 46. At the same time, the number of swing components 5 corresponds one-to-one with the fixed plastic rings 47, and the magnetic blocks 52 corresponding to the outer sides of the two sets of fixed plastic rings 47 are magnetically identical. As a result, when the elastic spiral band 46 swings due to the flow of heat transfer oil, the repulsive force between the magnetic blocks 52 corresponding to the two sets of small sleeves 51 causes the small sleeves 51 and the turbulence rings 53 to slide on the fixed plastic rings 47, thereby causing the arc surface of the elastic spiral band 46 to swing up and down, thus promoting the flow effect of heat transfer oil in the heat exchange chamber 41 and ensuring the heating and antifreeze effect of heat transfer oil on the butterfly valve.

[0032] In this invention, during use, heat transfer oil is injected into the heat exchange chamber 41 through the discharge valve 42, and the heating controller 44 is activated at the same time so that the heating metal plate 45 heats the heat transfer oil in the heat exchange chamber 41. In conjunction with the circulation pump 43, the heat transfer oil in the heat exchange chamber 41 is made to flow in a circular motion. With the setting of the elastic spiral belt 46, the heat transfer oil can fully exchange heat with the inside of the butterfly valve, so as to avoid the inside of the butterfly valve freezing and affecting the normal and safe use of the butterfly valve.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A high-stability antifreeze butterfly valve, comprising a valve body (1), wherein a base (2) is fixedly installed at the bottom of the valve body (1), and a valve plate (3) is rotatably installed inside the valve body (1), characterized in that: The valve body (1) is internally provided with a heat exchange assembly (4), the heat exchange assembly (4) comprising: A heat exchange chamber (41) is formed on the inner wall of the valve body (1). A discharge valve (42) is fixedly installed at the bottom of the valve body (1). A circulation pump (43) is fixedly installed at the top of the valve body (1). A heating controller (44) is fixedly installed on the outer wall of the top of the valve body (1). A heating metal plate (45) is fixedly installed on the arc-shaped inner wall of the top of the heat exchange chamber (41). An elastic spiral strip (46) is disposed inside the heat exchange chamber (41). A through hole (461) is provided on the inner wall at the center of the elastic spiral strip (46). A fixed plastic ring (47) is disposed inside the through hole (461). A convex ball (48) is fixedly installed on the outer wall of the fixed plastic ring (47). A through hole (49) is provided on the inner wall of the elastic spiral strip (46).

2. The high-stability antifreeze butterfly valve according to claim 1, characterized in that: The heat exchange chamber (41) is filled with heat transfer oil, and the discharge valve (42) is located directly below the valve body (1), while the interior of the discharge valve (42) is connected to the heat exchange chamber (41).

3. The high-stability antifreeze butterfly valve according to claim 1, characterized in that: The two sides of the elastic spiral band (46) are in contact with the arc-shaped inner surface of the heat exchange cavity (41), and the elastic spiral band (46) is in a ring spiral shape.

4. The high-stability antifreeze butterfly valve according to claim 1, characterized in that: The number of the convex balls (48) is set in two sets, and the two sets of convex balls (48) are symmetrically arranged with the vertical central axis of the valve body (1) as the axis of symmetry, and the elastic spiral band (46) is arranged between the two sets of convex balls (48).

5. A high-stability antifreeze butterfly valve according to claim 1, characterized in that: A swing assembly (5) is provided on the outside of the fixed plastic ring (47). The swing assembly (5) includes a small sleeve (51). The small sleeve (51) is sleeved on the outside of the fixed plastic ring (47). A magnetic block (52) is fixedly installed on the arc-shaped outer wall of the small sleeve (51). A turbulence ring (53) is fixedly installed on the bottom end face of the small sleeve (51).

6. A high-stability antifreeze butterfly valve according to claim 5, characterized in that: The number of fixed plastic rings (47) is set in two sets, and the two sets of fixed plastic rings (47) are coaxially arranged. The number of swing components (5) corresponds one-to-one with the number of fixed plastic rings (47).

7. A high-stability antifreeze butterfly valve according to claim 6, characterized in that: The magnetic properties of the corresponding magnetic blocks (52) on the outer sides of the two sets of fixed plastic rings (47) are the same.

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