High-temperature butterfly valve with water-cooling control function

Abstract

A pull rope is embedded in the inner side of a groove in the lower end of a connecting frame, a base plate is arranged at the lower end of the pull rope, a rotating ball is hinged to the lower end of the base plate, blades are connected to the rotating ball in a swinging mode, the lower ends of the blades abut against the upper end of a backing ring of an inner barrel in a sliding mode in the vertical direction, and the blades are matched with the rotating ball and arranged in an arc shape. The blades surround the lower end of the base plate, the blades are integrally combined to be in a conical shape, air falling downwards generates resistance to the lower ends of the blades, the blades obliquely swing through the rotating balls, the overall lower ends of the blades abut against the upper end of the backing ring in the vertical direction, and the blades can further seal the interior of the inner cylinder. Through the arrangement of the blades, the blades can form water cooling control in the opening and closing process of the butterfly plate, after the butterfly plate is closed, the blades and the sealing bag form double sealing on the upper portion of the butt-joint pipe, after the butterfly plate is opened, clear water rapidly enters the valve rod through the butt-joint pipe, and manual opening and closing of the butt-joint pipe are not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, in particular to a high-temperature butterfly valve with water cooling control. Background Art

[0002] High-temperature butterfly valves can adjust the fluid flow by controlling the angle of rotation of the butterfly plate. They are often made of high-temperature resistant materials and can maintain stable performance in high-temperature environments. They can withstand temperatures above 450°C or even higher. They are widely used in the metallurgical, chemical and building materials industries. Technical inspiration for high-temperature butterfly valves; The research on high temperature butterfly valves found the following problems: High-temperature butterfly valves usually cool the entire valve by flowing clean water inside the valve stem. When the interior of the high-temperature butterfly valve is in a closed state, the fluid cannot be transported through the high-temperature butterfly valve. Therefore, there is no need to cool the high-temperature butterfly valve by using clean water. At this time, the clean water end needs to be closed manually. When the high-temperature butterfly valve is opened, the clean water end source needs to be opened manually again, so that the high-temperature butterfly valve cannot form water cooling control on the clean water end during the opening and closing process of the butterfly plate, realizing the elimination of manual control and facilitating the rapid entry of clean water into the interior of the high-temperature butterfly valve. At present, the prior art publication number is CN112664665B, which discloses a high-temperature butterfly valve with a high-temperature resistance and self-cleaning function. The invention adopts a water-cooling and compression-type air-cooling cooling structure, which not only improves the high-temperature resistance of the high-temperature butterfly valve, but also increases the service life of the high-temperature butterfly valve and the cooling effect of the high-temperature butterfly valve. Secondly, the compression-type combined vibration reduction structure is adopted, which not only improves the anti-vibration effect of the high-temperature butterfly valve, but also improves the durability of the high-temperature butterfly valve. The present invention can mainly solve the problem that the high-temperature butterfly valve cannot form water cooling control on the clean water end during the opening and closing process of the butterfly plate, thereby realizing the convenience of clean water quickly entering the interior of the high-temperature butterfly valve without manual control. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a high-temperature butterfly valve with water cooling control to solve the problems described in the above background technology.

[0004] The purpose and effect of the water-cooled high-temperature butterfly valve of the present invention are achieved by the following specific technical means: A high-temperature butterfly valve with water cooling control includes a valve body, the upper end of the valve body is rotatably connected to a handle, the lower end of the handle is rotatably connected to a connecting frame, the lower end of the connecting frame is rotatably connected to a valve stem, and butterfly plates are connected to both sides of the valve stem.

[0005] Furthermore, the valve body is fixed to the pipeline through a flange, and a cooling cavity is opened on the outside of the valve body. The cooling cavity is annular, and the upper end of the cooling cavity is vertically connected to the upper end of the valve stem, and a drain outlet is passed through the lower end of the cooling cavity.

[0006] Furthermore, the lower end of the connecting frame is arranged in an octave shape, and a groove is provided at the lower end of the connecting frame.

[0007] Furthermore, the butterfly plate is rotated 90 degrees inside the valve body through the valve stem, the interior of the valve stem is hollow, and openings are passed through both sides of the valve stem close to the butterfly plate.

[0008] Furthermore, a hole is passed through the interior of the butterfly plate, the hole is arranged in an arc shape, and the hole passes through one end of the butterfly plate close to the valve stem. The butterfly plate is connected to the valve stem through the hole.

[0009] Furthermore, the lower end of the valve stem is connected with an inner tube, an inner cavity is opened inside the valve body near the lower end of the inner tube, the lower end of the inner cavity of the valve body is connected with a docking tube, and the inner tube is connected to the docking tube in a vertical direction through the inner cavity.

[0010] Furthermore, the butt joint pipe runs through the lower end of the valve body, and the butt joint pipe is connected to the water pipe, so that clean water enters the inner tube and the valve stem through the butt joint pipe.

[0011] Furthermore, the inner wall of the inner cylinder is surrounded by a gasket, the lower end of the inner cylinder is rotatably connected to a rotating ring, the lower end of the rotating ring is surrounded by a sealing bag, the inner cavity of the lower end of the valve body is surrounded by a fixing ring, and the upper end of the fixing ring is connected to the lower end of the sealing bag.

[0012] Furthermore, the rotating ring, the sealing bag and the fixed ring are arranged in a vertical direction in sequence. When the butterfly plate is in an open state inside the valve body, the sealing bag is cylindrical as a whole.

[0013] Furthermore, the sealing bag has a thickness of 0.4-1 cm, the fixed ring is in a circular shape, and when the rotating ring rotates 90° in the horizontal direction, the fixed ring is in a stationary state.

[0014] Furthermore, a draw rope is embedded in the inner side of the groove at the lower end of the connecting frame, a chassis is provided at the lower end of the draw rope, a rotating ball is hinged at the lower end of the chassis, and the swing of the rotating ball is connected to the blade.

[0015] Furthermore, when the chassis is inside the inner tube, the pull rope passes through the inside of the valve stem.

[0016] Furthermore, the blades are tilted and swung in a vertical direction by the rotating ball, and the swing angle is 15-60 degrees.

[0017] Furthermore, the lower end of the blade slides vertically against the upper end of the gasket of the inner tube, the blade is matched with the rotating ball, the blade is arranged in an arc shape, the arc angle is 90°, the blade surrounds the lower end of the chassis, and the overall blade combination is conical.

[0018] Furthermore, a bearing is hinged at the lower end of the inner wall of the butterfly plate hole, and a baffle is swingably connected to one side of the bearing.

[0019] Furthermore, the baffle is arranged in an arc shape with an arc angle of 90-120 degrees, and the baffle is tilted and swung in a vertical direction through a bearing.

[0020] Beneficial effects: 1. When the butterfly plate is in the open state inside the valve body, the sealing bag is cylindrical as a whole. At this time, clean water can enter the inner cavity at the lower end of the valve body through the butt joint, making it easier for clean water to enter the valve stem; When the valve stem drives the butterfly plate to rotate 90 degrees, the butterfly plate forms a closed rotation on the inside of the valve body, and the valve stem drives the inner cylinder to rotate synchronously. The inner cylinder drives the upper end of the sealing bag to rotate 90 degrees through the rotating ring. The lower end of the sealing bag is in a stationary state at the upper end of the fixed ring. At this time, the sealing bag is in a twisted state as a whole, and the sealing bag can form a closed state on the inner cavity of the valve body. 2. When the butterfly plate inside the valve body is in the open state, the sealing bag is cylindrical, and clean water flows through the inner cylinder to the lower end of the blade and the bottom plate. The bottom plate and the pull rope are stored in the groove at the lower end of the connecting frame due to the impact of the clean water. The blade is tilted and stored vertically by the rotating ball, which does not affect the normal flow of clean water inside the valve stem. 3. When the butterfly plate inside the valve body is in a closed state, the sealing bag is twisted as a whole, forming a seal on the bottom of the inner tube. Clean water cannot impact the lower end of the chassis. Utilizing the weight of the chassis and blades, the chassis and blades fall downward through the pull rope. The air creates resistance on the lower end of the blade during the downward fall. The blade swings obliquely through the rotating ball. The lower end of the blade as a whole presses against the upper end of the gasket in a vertical direction. The blade can further seal the inside of the inner tube, allowing the blade to form water-cooling control during the opening and closing process of the butterfly plate. After the butterfly plate is closed, the blade and the sealing bag form a double seal on the top of the butt joint pipe. After the butterfly plate is opened, clean water quickly passes through the butt joint pipe and enters the interior of the valve stem, eliminating the need for manual opening and closing of the butt joint pipe. 4. After the clean water enters the lower end of the butterfly plate hole, it hits one end of the baffle, and the baffle swings obliquely through the bearing, and the baffle fits to the inner wall of the butterfly plate; When clean water enters through the upper end of the butterfly plate hole, the clean water hits the upper end of the baffle, and the baffle swings downward through the bearing. At this time, the baffle forms a seal on the inside of the butterfly plate hole, which can prevent the clean water from flowing back to the lower end of the valve stem through the inside of the butterfly plate hole, thereby controlling the flow direction of the clean water inside the butterfly plate and preventing the clean water at the upper end of the valve stem from flowing back into the butterfly plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the overall explosion structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the local structure of the valve body of the present invention.

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the valve body of the present invention.

[0025] Figure 5 For the present invention Figure 4 Schematic diagram after the middle butterfly plate rotates.

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the valve stem of the present invention.

[0027] Figure 7 For the present invention Figure 6 Schematic diagram after the middle butterfly plate rotates.

[0028] Figure 8 It is a schematic diagram of the internal structure of the inner cylinder of the present invention.

[0029] Figure 9 It is a schematic diagram of the inner cylinder and blade assembly of the present invention.

[0030] Figure 10 This is a schematic diagram of the explosion of the blade assembly of the present invention.

[0031] Figure 1-10 , the corresponding relationship between component names and figure numbers is as follows: 1-valve body, 101-handle, 102-butterfly plate, 103-valve stem, 104-butt pipe, 2-connecting frame, 201-pull rope, 202-chassis, 203-rotating ball, 204-blade, 3-inner cylinder, 301-gasket, 302-rotating ring, 303-sealing bag, 4-fixing ring, 5-bearing, 501-baffle. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0033] As attached Figure 1 To the attached Figure 10 As shown: Example 1: A high-temperature butterfly valve with water cooling control includes a valve body 1, the upper end of the valve body 1 is rotatably connected to a handle 101, the lower end of the handle 101 is rotatably connected to a connecting frame 2, the lower end of the connecting frame 2 is rotatably connected to a valve stem 103, and butterfly plates 102 are connected to both sides of the valve stem 103; The valve body 1 is fixed to the pipe through the flange. A cooling cavity is provided on the outside of the valve body 1. The cooling cavity is annular. The upper end of the cooling cavity is vertically connected to the upper end of the valve stem 103. The lower end of the cooling cavity is provided with a drain port. Figure 4 As shown; The lower end of the connecting frame 2 is arranged in an octave shape, and a groove is provided at the lower end of the connecting frame 2. Figure 7 As shown; The lower end of the connecting frame 2 is arranged in an octagonal shape, and an opening is provided between the lower end of the connecting frame 2 and the upper end of the valve stem 103, through which the clean water inside the valve stem 103 can enter the cooling chamber of the valve body 1; The butterfly plate 102 rotates 90 degrees inside the valve body 1 through the valve stem 103. The valve stem 103 is hollow inside. There are openings on both sides of the valve stem 103 close to the butterfly plate 102. Figure 3 As shown; The butterfly plate 102 has an arc-shaped hole extending through the end of the butterfly plate 102 close to the valve stem 103. The butterfly plate 102 is connected to the valve stem 103 through the hole. The lower end of the valve stem 103 is connected to the inner tube 3. An inner cavity is opened in the valve body 1 near the lower end of the inner tube 3. The lower end of the inner cavity of the valve body 1 is connected to the butt joint 104. The inner tube 3 is connected to the butt joint 104 in a vertical direction through the inner cavity. The butt joint 104 passes through the lower end of the valve body 1 and is connected to the water pipe. Clean water enters the inner tube 3 and the valve stem 103 through the butt joint 104. The valve body 1 is fixed to the pipeline through a flange as a whole. The handle 101 is rotated manually or by a driving device. The handle 101 drives the valve stem 103 to rotate through the connecting frame 2. The valve stem 103 drives the butterfly plate 102 to rotate 90 degrees. When the valve stem 103 rotates, the inner cylinder 3 rotates synchronously. The rotation of the butterfly plate 102 closes and opens the interior of the valve body 1. The butt joint 104 is connected to the water pipe, and the clean water enters the interior of the inner tube 3 through the butt joint 104, and then enters the interior of the valve stem 103. Since the butterfly plate 102 is penetrated by a hole, the hole is arranged in an arc shape, and the hole penetrates the end of the butterfly plate 102 close to the valve stem 103. Therefore, the clean water passes through the openings on both sides of the valve stem 103 to facilitate the clean water to flow in an arc shape inside the butterfly plate 102. The clean water then enters the upper end of the valve stem 103, enters the cooling chamber of the valve body 1 through the valve stem 103, and is then discharged through the drain port at the lower end of the cooling chamber, so that the butterfly plate 102, valve stem 103 and valve body 1 of this high-temperature butterfly valve can form a water-cooled cycle for cooling. Example 2: Refer to the attached manual Figure 4-10 It can be seen that the inner wall of the inner tube 3 is surrounded by a gasket 301, the lower end of the inner tube 3 is rotatably connected to a rotating ring 302, the lower end of the rotating ring 302 is surrounded by a sealing bag 303, and the inner cavity of the lower end of the valve body 1 is surrounded by a fixing ring 4, the upper end of the fixing ring 4 is connected to the lower end of the sealing bag 303; The rotating ring 302, the sealing bag 303 and the fixed ring 4 are arranged in a vertical direction. When the butterfly plate 102 is in the open state inside the valve body 1, the sealing bag 303 is cylindrical as a whole. Figure 6 As shown; The sealing bag 303 is made of silicon nitrogen rubber and can maintain a stable structure without decomposition in the range of 430℃-480℃; The sealing bag 303 has a thickness of 0.4-1 cm, the fixed ring 4 is in a circular shape, and when the rotating ring 302 rotates 90° in the horizontal direction, the fixed ring 4 is in a stationary state; When the butterfly plate 102 is in the open state inside the valve body 1, the sealing bag 303 is cylindrical as a whole. At this time, clean water can enter the inner cavity of the lower end of the valve body 1 through the docking tube 104, making it convenient for clean water to enter the valve stem 103. When the valve stem 103 drives the butterfly plate 102 to rotate 90 degrees, the butterfly plate 102 forms a closed rotation on the inside of the valve body 1, and the valve stem 103 drives the inner cylinder 3 to rotate synchronously. The inner cylinder 3 drives the upper end of the sealing bag 303 to rotate 90 degrees through the rotating ring 302. The lower end of the sealing bag 303 is in a stationary state at the upper end of the fixed ring 4. At this time, the sealing bag 303 is in a twisted state as a whole. The sealing bag 303 can form a closed state on the inner cavity of the valve body 1. Please refer to the attached manual for details. Figure 5 As shown; Example 3: Refer to the attached manual Figure 4-7 It can be seen that a pull rope 201 is embedded in the inner side of the groove at the lower end of the connecting frame 2, and a chassis 202 is provided at the lower end of the pull rope 201. A rotating ball 203 is hinged at the lower end of the chassis 202, and the swing of the rotating ball 203 is connected to the blade 204; The material of the drawstring 201 is the same as that of the sealing bag 303, both of which are made of silicon nitrogen rubber and can withstand high temperatures; When the chassis 202 is inside the inner tube 3, the pull rope 201 passes through the inside of the valve stem 103. Figure 7 As shown; The blade 204 is tilted and swung vertically by the rotating ball 203, with a swing angle of 15-60 degrees; The lower end of the blade 204 slides against the upper end of the gasket 301 of the inner tube 3 in a vertical direction. The blade 204 is matched with the rotating ball 203. The blade 204 is set in an arc shape with an arc angle of 90 degrees. The blade 204 surrounds the lower end of the chassis 202. The blade 204 is integrally formed in a conical shape. Figure 10 As shown; The blades 204 are combined into a cone shape. When the blades 204 are located at the upper end of the gasket 301 of the inner tube 3, the shape of the blades 204 can form a seal on the inside of the inner tube 3. Among them: When the butterfly plate 102 inside the valve body 1 is in the open state, the sealing bag 303 is cylindrical, and the clean water impacts the blade 204 and the lower end of the chassis 202 through the inner cylinder 3. Through the impact of the clean water, the chassis 202 and the pull rope 201 are stored in the groove at the lower end of the connecting frame 2, and the blade 204 is tilted in the vertical direction by the rotating ball 203, which does not affect the normal circulation of the clean water inside the valve stem 103. Please refer to the attached manual for details. Figure 6 As shown; When the butterfly plate 102 in the valve body 1 is in the closed state, combined with Example 2, the sealing bag 303 is twisted as a whole, forming a seal on the bottom of the inner tube 3, and the clean water cannot impact the lower end of the bottom plate 202. By utilizing the weight of the bottom plate 202 and the blade 204, the bottom plate 202 and the blade 204 fall downward through the pull rope 201. The air during the downward fall generates resistance to the lower end of the blade 204, and the blade 204 is tilted and swung by the rotating ball 203. The lower end of the blade 204 is vertically pressed against the upper end of the gasket 301, and the blade 204 can further seal the interior of the inner tube 3, so that the blade 204 can form water-cooling control during the opening and closing process of the butterfly plate 102, and after the butterfly plate 102 is closed, the blade 204 and the sealing bag 303 form a double seal on the upper part of the butt joint 104. After the butterfly plate 102 is opened, clean water quickly passes through the butt joint 104 into the interior of the valve stem 103, and there is no need to manually open and close the butt joint 104. Example 4: See the attached manual Figure 6 and 7 It can be seen that the lower end of the inner wall of the butterfly plate 102 hole is hinged with a bearing 5, and one side of the bearing 5 is swingably connected to a baffle 501; The baffle 501 is arranged in an arc shape with an arc angle of 90-120 degrees, and the baffle 501 is tilted and swung in a vertical direction through the bearing 5; Among them: After the clean water enters the lower end of the hole inside the butterfly plate 102, the clean water impacts one end of the baffle 501, and the baffle 501 is tilted and swung through the bearing 5. The baffle 501 is attached to the inner wall of the butterfly plate 102. Figure 6 As shown; When clean water enters through the upper end of the hole inside the butterfly plate 102, the clean water impacts the upper end of the baffle 501, and the baffle 501 swings downward through the bearing 5. At this time, the baffle 501 forms a seal on the inside of the hole of the butterfly plate 102, which can prevent the clean water from flowing back through the hole inside the butterfly plate 102 to the lower end of the valve stem 103, thereby controlling the flow direction of the clean water inside the butterfly plate 102 and preventing the clean water at the upper end of the valve stem 103 from flowing back into the inside of the butterfly plate 102. For details, please refer to the attached manual. Figure 7 shown.

Claims

1. High temperature butterfly valve with water cooling control, characterized by: The valve body (1) comprises a valve body (1), wherein the upper end of the valve body (1) is rotatably connected to a handle (101), the lower end of the handle (101) is rotatably connected to a connecting frame (2), the lower end of the connecting frame (2) is rotatably connected to a valve stem (103), and butterfly plates (102) are connected and connected to both sides of the valve stem (103); The lower end of the valve stem (103) is connected to the inner tube (3), and an inner cavity is provided in the valve body (1) near the lower end of the inner tube (3). The lower end of the inner cavity of the valve body (1) is connected to a butt joint (104), and the inner tube (3) is connected to the butt joint (104) in a vertical direction through the inner cavity. A hole is formed inside the butterfly plate (102), and the hole is arranged in an arc shape. The hole passes through one end of the butterfly plate (102) close to the valve stem (103), and the butterfly plate (102) is connected to the valve stem (103) through the hole.

2. The high-temperature butterfly valve with water cooling control according to claim 1 is characterized in that: The valve body (1) is fixed to the pipeline via a flange, and a cooling cavity is provided on the outside of the valve body (1). The cooling cavity is annular, and the upper end of the cooling cavity is vertically connected to the upper end of the valve stem (103). The lower end of the cooling cavity is penetrated by a drain port.

3. The high-temperature butterfly valve with water cooling control according to claim 1 is characterized in that: The lower end of the connecting frame (2) is arranged in an octagonal shape, and a groove is provided at the lower end of the connecting frame (2); The butterfly plate (102) rotates 90 degrees inside the valve body (1) through the valve stem (103). The interior of the valve stem (103) is hollow, and openings are penetrated on both sides of the valve stem (103) close to the butterfly plate (102).

4. The high-temperature butterfly valve with water cooling control according to claim 1 is characterized in that: The butt-joint pipe (104) passes through the lower end of the valve body (1), and the butt-joint pipe (104) is butt-jointed with the water pipe, so that clean water enters the inner tube (3) and the valve stem (103) through the butt-joint pipe (104).

5. The high-temperature butterfly valve with water cooling control according to claim 1 is characterized in that: The inner wall of the inner cylinder (3) is surrounded by a gasket ring (301), the lower end of the inner cylinder (3) is rotatably connected to a rotating ring (302), the lower end of the rotating ring (302) is surrounded by a sealing bag (303), and the inner cavity of the lower end of the valve body (1) is surrounded by a fixing ring (4), and the upper end of the fixing ring (4) is connected to the lower end of the sealing bag (303).

6. The high-temperature butterfly valve with water cooling control according to claim 5, characterized in that: The rotating ring (302), the sealing bag (303) and the fixed ring (4) are arranged in a vertical direction in sequence. When the butterfly plate (102) is in an open state inside the valve body (1), the sealing bag (303) is cylindrical in shape as a whole. The sealing bag (303) has a thickness of 0.4-1 cm, the fixed ring (4) is in a circular ring shape, and when the rotating ring (302) rotates 90 degrees in the horizontal direction, the fixed ring (4) is in a stationary state.

7. The high-temperature butterfly valve with water cooling control according to claim 3 is characterized in that: A drawstring (201) is embedded in the inner side of the groove at the lower end of the connecting frame (2), a chassis (202) is provided at the lower end of the drawstring (201), a rotating ball (203) is hinged at the lower end of the chassis (202), and the swinging of the rotating ball (203) is connected to a blade (204).

8. The high-temperature butterfly valve with water cooling control according to claim 7, characterized in that: The blade (204) is tilted and swung in a vertical direction by the rotating ball (203), with a swing angle of 15-60 degrees; The lower end of the blade (204) slides against the upper end of the gasket (301) of the inner cylinder (3) in a vertical direction, and the blade (204) is matched with the rotating ball (203). The blade (204) is arranged in an arc shape with an arc angle of 90 degrees. The blade (204) surrounds the lower end of the chassis (202), and the blade (204) is assembled into a cone shape.

9. The high-temperature butterfly valve with water cooling control according to claim 1, characterized in that: A bearing (5) is hingedly connected to the lower end of the inner wall of the butterfly plate (102) hole, and a baffle (501) is swingably connected to one side of the bearing (5).

10. The high-temperature butterfly valve with water cooling control according to claim 9, characterized in that: The baffle (501) is arranged in an arc shape with an arc angle of 90-120°, and the baffle (501) is tilted and swung in a vertical direction via a bearing (5).

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