An electric butterfly valve for intelligent control of industrial steam

Abstract

The present invention relates to the technical field of butterfly valves, and discloses an electric butterfly valve with intelligent control of industrial steam, comprising a valve body, an electromagnetic ring is embedded in the inner wall of the valve body, a sealing mechanism is fixedly installed on the inner wall of the valve body, the sealing mechanism comprises a valve seat, a rubber ring is fixedly connected to the inner wall of the valve seat, a metal soft ring is fixedly sleeved on the outer periphery of the rubber ring, a magnetic ring is slidably inserted on the left end of the valve seat, an adjusting mechanism is movably connected to the rear end of the valve body, the adjusting mechanism comprises a worm, and an electric block is fixedly connected to the outer periphery of the worm. The electric butterfly valve with intelligent control of industrial steam automatically provides a high extrusion pressure between the rubber ring and the valve plate by using the high pressure on the steam side when the valve plate is closed, and controls the rubber ring to automatically reduce the extrusion pressure when the valve plate is opened, thereby effectively reducing the seal wear and ensuring the subsequent sealing quality, and effectively improving the stability of the overall use of the valve.

Description

Technical Field

[0001] The invention relates to the technical field of butterfly valves, and in particular to an electric butterfly valve for intelligent control of industrial steam. Background Art

[0002] During use, the existing industrial steam electric butterfly valves all have the sealing ring fixedly installed on the valve seat. In order to ensure the tightness of the seal, the inner diameter of the sealing ring is designed to be as smaller than the diameter of the valve plate as possible. This allows the valve plate to be fully squeezed with the sealing ring when closed, thereby achieving the effect of fully filling the connecting gap. However, when the valve plate is closed, its edge will preferentially be squeezed with the edge of the sealing ring, which will cause the sealing ring to undergo tangential hard extrusion deformation, and when the valve plate is opened, the sealing ring will be hard squeezed again. In the long run, this will cause serious wear of the sealing ring, greatly affecting its service life, and the full compression of the sealing ring will cause the problem of large opening and closing torque, which will be detrimental to the stability of the overall use of the valve. Summary of the invention

[0003] In order to solve the problems of large seal wear, low subsequent seal quality and low overall valve stability during use of the above-mentioned general industrial steam electric butterfly valve, and to achieve the above purpose of effectively reducing seal wear and ensuring subsequent seal quality and effectively improving the overall valve stability, the present invention is implemented through the following technical solutions: an industrial steam intelligently controlled electric butterfly valve, comprising a valve body, an electromagnetic ring is buried in the inner wall of the valve body, a sealing mechanism is fixedly installed on the inner wall of the valve body, the sealing mechanism comprises a valve seat, a rubber ring is fixedly connected to the inner wall of the valve seat, a metal soft ring is fixedly sleeved on the outer periphery of the rubber ring, a magnetic ring is slidably inserted on the left end of the valve seat, an adjusting mechanism is movably connected to the rear end of the valve body, the adjusting mechanism comprises a worm, an electric block is fixedly connected to the outer periphery of the worm, a resist is slidably inserted on the left end of the electric block, an electric contact head is elastically connected to the inner wall of the electric block, a hinge rod is movably connected between the electric contact head and the inner wall of the electric block, a groove ring is rotatably sleeved on the outer periphery of the worm, and an electric coupling ring sleeved on the worm is fixedly connected to the rear end of the valve body.

[0004] Furthermore, it also includes a steam pipe, which is fixedly connected to the left and right sides of the valve body. A gear rod is rotatably inserted in the middle of the inner cavity of the valve body, a valve plate is fixedly sleeved on the surface of the gear rod, and an electrically controlled telescopic rod is fixedly installed at the rear end of the valve body.

[0005] Furthermore, the electromagnetic coil and the magnetic ring are elastically connected. After the electromagnetic coil is energized, the magnetic poles of the opposite surfaces of the magnetic ring are the same. The metal soft ring is slidably connected to the inner wall of the valve seat. A wedge surface is provided on the inner wall of the magnetic ring close to the metal soft ring, so that when the valve plate is closed, the magnetic ring can be squeezed by the external high pressure to deform the metal soft ring, so as to drive the rubber ring to shrink and fully fill the gap connected with the valve plate. After the electromagnetic coil is energized, the rubber ring can be restored. During the period from the opening of the valve plate to the closing of the valve plate and the de-energization of the electromagnetic coil, the elastic connection between the electromagnetic coil and the magnetic ring can prevent the rubber ring from shrinking and hindering the closure of the valve plate.

[0006] Furthermore, the left and right edges of the rubber ring are respectively provided with inclined surfaces corresponding to the valve plate, and the inclined surfaces on both sides are symmetrical about the center of the rubber ring, thereby avoiding hard extrusion deformation between the valve plate and the rubber ring when the valve plate is closed, causing wear of the rubber ring and reducing its service life.

[0007] Furthermore, one side of the opposite surface of the electric block and the electric coupling ring includes corresponding electrical parts, and the electric block, the electric coupling ring, the electric contact head and the electromagnetic coil are electrically connected. Initially, the electrical parts between the electric block and the electric coupling ring are connected to each other, the electric contact head is separated from the electrical parts of the electric block, and the valve plate is closed, so that when the groove ring rotates clockwise to squeeze the rod until the worm rotates to open the valve plate, the electromagnetic coil can be energized, and when the valve plate is further opened subsequently, the electromagnetic coil can be de-energized.

[0008] Furthermore, a pull groove corresponding to the electric block is provided at the rear end of the groove ring, and a pin groove slidably engaged with the electric control telescopic rod is provided at the right end of the groove ring, so that when the electric control telescopic rod drives the groove ring to adjust the worm to rotate, the corresponding circuit can be adjusted in advance.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The electric butterfly valve with intelligent control of industrial steam is initially de-energized by the electromagnetic coil. After the valve plate is closed with a low extrusion force in cooperation with the rubber ring, the high pressure on the left side of the valve body causes the magnetic ring to move right, so that the rubber ring automatically contracts to improve the sealing performance between the valve plate and the valve plate. When the valve plate needs to be opened, the electric block and the electric coupling ring are electrically connected at the beginning, the electric contact head is electrically separated from the electric block, and the push rod extends outward from the electric block. The control groove ring is deflected clockwise to squeeze the push rod to connect the circuit of the electromagnetic coil, and the corresponding rubber ring automatically recovers and seals with a low extrusion force. When the groove ring continues to deflect clockwise to drive the valve plate to open, the electric block and the electric coupling ring are electrically separated, and the electromagnetic coil is automatically powered off, which enables the rubber ring to automatically reduce the sealing extrusion force to reduce the opening torque of the valve plate, thereby effectively reducing the seal wear and ensuring the subsequent sealing quality.

[0011] 2. The electric butterfly valve with intelligent control of industrial steam uses the groove ring to unidirectionally squeeze the rod to control the circuit connection mechanism of the electromagnetic coil. When the valve plate is closed, the electric block and the contact head can always remain electrically separated, the circuit of the electromagnetic coil is always disconnected, and the rubber ring can maintain a low extrusion pressure state connected to the valve plate. This allows the valve plate to be closed with low torque and reduces the wear on the rubber ring. This design effectively improves the overall stability of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a main cross-sectional view of the present invention;

[0013] Figure 2 A top sectional view of the valve body connection portion of the present invention;

[0014] Figure 3 A top sectional view of the connection portion of the electric block of the present invention;

[0015] Figure 4 for Figure 1 The enlarged view of point A in the middle;

[0016] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0017] In the figure: 1. valve body; 2. electromagnetic coil; 3. sealing mechanism; 31. valve seat; 32. rubber ring; 33. metal soft ring; 34. magnetic ring; 4. adjusting mechanism; 41. worm; 42. electric block; 43. push rod; 44. electric contact head; 45. hinge rod; 46. groove ring; 47. electric coupling ring; 5. steam pipe; 6. gear rod; 7. valve plate; 8. electric control telescopic rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] The embodiment of the electric butterfly valve for intelligent control of industrial steam is as follows:

[0020] See also Figure 1-Figure 5, an electric butterfly valve for intelligent control of industrial steam, including a valve body 1, an electromagnetic ring 2 is buried in the inner wall of the valve body 1, a sealing mechanism 3 is fixedly installed on the inner wall of the valve body 1, the sealing mechanism 3 includes a valve seat 31, a rubber ring 32 is fixedly connected to the inner wall of the valve seat 31, and the left and right edges of the rubber ring 32 are respectively provided with inclined surfaces corresponding to the valve plate 7, and the inclined surfaces on both sides are symmetrical about the center of the rubber ring 32, so as to avoid hard extrusion deformation between the valve plate 7 and the rubber ring 32 when the valve plate 7 is closed, causing the rubber ring 32 to wear and reduce its service life.

[0021] A metal soft ring 33 is fixedly sleeved on the outer periphery of the rubber ring 32, and a magnetic ring 34 is slidably inserted on the left end of the valve seat 31. The electromagnetic ring 2 and the magnetic ring 34 are elastically connected. After the electromagnetic ring 2 is energized, the magnetic poles of the opposite surfaces of the magnetic ring 34 are the same, and the metal soft ring 33 is slidably connected to the inner wall of the valve seat 31. A wedge surface is provided on the inner wall of the magnetic ring 34 close to the metal soft ring 33, so that when the valve plate 7 is closed, the magnetic ring 34 can be squeezed by the external high pressure to deform the metal soft ring 33, so as to drive the rubber ring 32 to shrink and fully fill the gap connected with the valve plate 7. After the electromagnetic ring 2 is energized, the rubber ring 32 can be restored. During the period from the opening of the valve plate 7 to the closing and the electromagnetic ring 2 is powered off, the elastic connection between the electromagnetic ring 2 and the magnetic ring 34 can prevent the rubber ring 32 from shrinking and causing the valve plate 7 to be blocked from closing.

[0022] The rear end of the valve body 1 is movably connected with an adjusting mechanism 4, which includes a worm 41, which is meshed with the gear rod 6, an electric block 42 is fixedly connected to the periphery of the worm 41, a push rod 43 is slidably inserted at the left end of the electric block 42, an electric contact head 44 is elastically connected to the inner wall of the electric block 42, a hinge rod 45 is movably connected between the electric contact head 44 and the inner wall of the electric block 42, a groove ring 46 is rotatably sleeved on the periphery of the worm 41, a pull groove corresponding to the electric block 42 is provided at the rear end of the groove ring 46, and a pin groove slidably engaged with the electric control telescopic rod 8 is provided at the right end of the groove ring 46, so that when the electric control telescopic rod 8 drives the groove ring 46 to adjust the rotation of the worm 41, the corresponding circuit can be adjusted in advance.

[0023] The rear end of the valve body 1 is fixedly connected to an electric coupling ring 47 sleeved on the worm 41, and the side of the opposite surface of the electric block 42 and the electric coupling ring 47 includes corresponding electrical parts. The electric block 42, the electric coupling ring 47, the electric contact head 44 and the electromagnetic coil 2 are electrically connected. Initially, the electrical parts between the electric block 42 and the electric coupling ring 47 are connected, the electric contact head 44 is separated from the electrical part of the electric block 42, and the valve plate 7 is closed, so that when the groove ring 46 rotates clockwise to squeeze the push rod 43 until the worm 41 rotates to open the valve plate 7, the electromagnetic coil 2 can be energized, and when the valve plate 7 is further opened subsequently, the electromagnetic coil 2 can be de-energized.

[0024] By initially not energizing the electromagnetic coil 2, after the valve plate 7 is closed with a low extrusion pressure in cooperation with the rubber ring 32, the high pressure on the left side of the valve body 1 causes the magnetic ring 34 to move rightward, causing the rubber ring 32 to automatically contract and improve the sealing performance with the valve plate 7. When the valve plate 7 needs to be opened, due to the initial electrical connection between the electric block 42 and the electrical coupling ring 47, the electric contact head 44 is electrically separated from the electric block 42, and the push rod 43 extends outward from the electric block 42. The control groove ring 46 is deflected clockwise to squeeze the push rod 43 to connect the circuit of the electromagnetic coil 2, and the corresponding rubber ring 32 automatically recovers and seals with a low extrusion pressure. When the groove ring 46 continues to deflect clockwise to drive the valve plate 7 to open, the electric block 42 is electrically separated from the electrical coupling ring 47, and the electromagnetic coil 2 is automatically powered off, which enables the rubber ring 32 to automatically reduce the sealing extrusion force to reduce the opening torque of the valve plate 7, thereby effectively reducing the seal wear and ensuring the subsequent sealing quality.

[0025] The steam pipe 5 is fixedly connected to the left and right sides of the valve body 1, and a gear rod 6 is rotatably inserted in the middle of the inner cavity of the valve body 1, and a valve plate 7 is fixedly sleeved on the surface of the gear rod 6. An electrically controlled telescopic rod 8 is fixedly installed at the rear end of the valve body 1. The groove ring 46 is used to unidirectionally squeeze the abutment rod 43 to control the circuit connection mechanism of the electromagnetic coil 2. When the valve plate 7 is closed, the electric block 42 and the contact head 44 can always maintain an electrically separated state, and the circuit of the electromagnetic coil 2 is always disconnected. The rubber ring 32 can maintain a low extrusion pressure state connected to the valve plate 7, which enables the valve plate 7 to be closed with low torque and reduces the wear on the rubber ring 32. This design effectively improves the stability of the overall use of the valve.

[0026] Working principle: When in use, the initial valve plate 7 cooperates with the rubber ring 32 to close with a low extrusion pressure, and the steam flows from left to right. The high pressure on the left side of the valve body 1 causes the magnetic ring 34 to move right. Correspondingly, under the action of the wedge surface of the magnetic ring 34, the metal soft ring 33 is compressed to drive the rubber ring 32 to shrink, so as to further fill the connection gap with the valve plate 7 and form a high extrusion pressure, which greatly improves the sealing performance of the valve plate 7 after closing. In addition, since the electrical parts between the initial electric block 42 and the electric connecting ring 47 are connected, the contact head 44 is separated from the electrical part of the electric block 42, and the push rod 43 extends outward from the electric block 42. When the valve plate 7 needs to be opened, the electric control telescopic rod 8 is used to control the groove ring 46 to deflect clockwise, and the groove can be squeezed to squeeze the push rod 43 to connect the circuit of the electromagnetic ring 2. The electromagnetic ring 2 cancels the extrusion of the metal soft ring 33, and the corresponding rubber ring 32 automatically recovers and seals with a low extrusion pressure, and the groove ring 46 continues to rotate clockwise. After deflection, the worm 41 drives the gear rod 6 to open the valve plate 7. At that time, the electrical part between the electric block 42 and the electric coupling ring 47 is separated, and the electromagnetic ring 2 is automatically powered off. This enables the rubber ring 32 to automatically reduce the sealing extrusion force when the valve plate 7 is opened, so as to reduce the opening torque of the valve plate 7, thereby effectively reducing the sealing wear and ensuring the subsequent sealing quality. During the opening and closing of the valve plate 7, the groove ring 46 is used to unidirectionally squeeze the abutment rod 43 to control the circuit connection mechanism of the electromagnetic ring 2, so that when the control groove ring 46 rotates counterclockwise to close the valve plate 7, the electric block 42 and the electric contact head 44 can always maintain an electrically separated state, the circuit of the electromagnetic ring 2 is always disconnected, and the rubber ring 32 can maintain a low extrusion pressure state connected to the valve plate 7, which enables the valve plate 7 to be closed with low torque, and the wear on the rubber ring 32 is also reduced. This design effectively improves the stability of the overall use of the valve.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric butterfly valve for intelligent control of industrial steam, comprising a valve body (1), characterized in that: An electromagnetic ring (2) is embedded in the inner wall of the valve body (1); a sealing mechanism (3) is fixedly installed on the inner wall of the valve body (1); the sealing mechanism (3) comprises a valve seat (31); a rubber ring (32) is fixedly connected to the inner wall of the valve seat (31); a metal soft ring (33) is fixedly sleeved on the outer periphery of the rubber ring (32); and a magnetic ring (34) is slidably inserted at the left end of the valve seat (31); It also comprises a steam pipe (5), the steam pipe (5) being fixedly connected to the left and right sides of the valve body (1), a gear rod (6) being rotatably plugged into the middle of the inner cavity of the valve body (1), a valve plate (7) being fixedly sleeved on the surface of the gear rod (6), and an electrically controlled telescopic rod (8) being fixedly mounted on the rear end of the valve body (1); The rear end of the valve body (1) is movably connected to an adjusting mechanism (4), the adjusting mechanism (4) comprising a worm (41), the worm (41) being meshingly connected to a toothed rod (6), an electric block (42) being fixedly connected to the periphery of the worm (41), a push rod (43) being slidably inserted at the left end of the electric block (42), an electric contact head (44) being elastically connected to the inner wall of the electric block (42), a hinge rod (45) being movably connected between the electric contact head (44) and the inner wall of the electric block (42), a groove ring (46) being rotatably sleeved on the periphery of the worm (41), a pull groove corresponding to the electric block (42) being provided at the rear end of the groove ring (46), and a pin groove slidably engaged with an electric control telescopic rod (8) being provided at the right end of the groove ring (46); The rear end of the valve body (1) is fixedly connected to an electric coupling ring (47) sleeved on the worm (41); the electric block (42) and the electric coupling ring (47) have corresponding electrical parts on one side opposite to the electric coupling ring (47); the electric block (42), the electric coupling ring (47), the electric contact head (44) and the electromagnetic coil (2) are electrically connected; Initially, the electromagnetic coil (2) is not energized, and the valve plate (7) cooperates with the rubber ring (32) to close with a low extrusion force. The high pressure on the left side of the valve body (1) causes the magnetic ring (34) to move rightward, so that the rubber ring (32) automatically contracts to improve the sealing performance between the valve plate (7). When the valve plate (7) needs to be opened, the electric block (42) and the electric coupling ring (47) are electrically connected, and the contact head (44) and the electric block (42) are electrically separated, and the push rod (43) is on the electric block (42). The control groove ring (46) is extended outward, and the clockwise deflection of the control groove ring (46) squeezes the push rod (43) to connect the circuit of the electromagnetic ring (2), and the corresponding rubber ring (32) automatically recovers and seals with a low squeezing force. When the groove ring (46) continues to deflect clockwise to drive the valve plate (7) to open, the electric block (42) and the electric connecting ring (47) are electrically separated, and the electromagnetic ring (2) is automatically deenergized, which enables the rubber ring (32) to automatically reduce the sealing squeezing force to reduce the opening torque of the valve plate (7).

2. The electric butterfly valve for intelligent control of industrial steam according to claim 1 is characterized by: The electromagnetic coil (2) and the magnetic ring (34) are elastically connected, and when power is supplied to the electromagnetic coil (2), the magnetic poles of the opposing surfaces of the electromagnetic coil (2) and the magnetic ring (34) are the same.

3. The electric butterfly valve for intelligent control of industrial steam according to claim 1 is characterized by: The metal soft ring (33) is slidably connected to the inner wall of the valve seat (31).

4. The electric butterfly valve for intelligent control of industrial steam according to claim 1 is characterized by: The left and right edges of the rubber ring (32) are respectively provided with inclined surfaces corresponding to the valve plate (7).

5. The electric butterfly valve for intelligent control of industrial steam according to claim 1 is characterized by: A wedge surface is provided on a side of the inner wall of the magnetic ring (34) close to the metal soft ring (33).

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