CN213776410U

CN213776410U - Double-channel centrifugal butterfly valve

Info

Publication number: CN213776410U
Application number: CN202022390882.0U
Authority: CN
Inventors: 卢伟
Original assignee: Daqing Century Ruixiang Technology Co ltd
Current assignee: Daqing Century Ruixiang Technology Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-07-23
Anticipated expiration: 2030-10-19

Abstract

The utility model relates to a binary channels butterfly valve technical field just discloses a binary channels centrifugal butterfly valve, including control knob, control knob's left side is equipped with the centrifugal control storehouse, the left side fixedly connected with seal seat in centrifugal control storehouse, the bottom fixedly connected with connecting seat in centrifugal control storehouse, the both sides of connecting seat are equipped with gland nut, the first passageway of bottom fixedly connected with of connecting seat, the bottom of first passageway is equipped with the second passageway. The utility model discloses an increase spacing closing plate and sealed cushion, when the valve body closed, sealed cushion takes place to warp under the valve plate pressure effect, with spacing closing plate combined action, gap is sealed between valve plate and valve body, the closed leakproofness of butterfly valve at the during operation has been improved, when having avoided the valve body closure, because of the leakproofness is poor, lead to carrying the material to pass through the condition appearance that valve plate and valve body interface gap derived, and avoided liquid to produce the production corruption to central pivot, the life of valve body has been prolonged.

Description

Double-channel centrifugal butterfly valve

Technical Field

The utility model relates to a binary channels butterfly valve technical field specifically is a binary channels centrifugal butterfly valve.

Background

The butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the on-off control of low-pressure pipeline media, is a valve of which the closing member is a disc and rotates around a valve shaft to open and close, and is fully applied to the material conveying industry.

However, the existing butterfly valve is poor in sealing performance, the valve plate is not completely closed, conveying materials are led out through gaps between the valve plate and the inner wall of the valve body, sealing efficiency is low, and when liquid materials are conveyed, the materials flow into the base through gaps between the valve rod and the valve body interface, corrosion to the central rotating shaft is caused, and the service life of the butterfly valve is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a binary channels centrifugal butterfly valve possesses the advantage of high leakproofness, has solved the problem that appears the material and derive through the gap when transporting fluid material, possesses the advantage of avoiding central pivot corruption, has solved the material and has piled up the problem that leads to central pivot to take place to corrode inside the base.

The utility model provides a following technical scheme: a double-channel centrifugal butterfly valve comprises a control knob, wherein a centrifugal control bin is arranged on the left side of the control knob, a sealing seat is fixedly connected on the left side of the centrifugal control bin, a connecting seat is fixedly connected at the bottom of the centrifugal control bin, sealing nuts are arranged on two sides of the connecting seat, a first channel is fixedly connected at the bottom of the connecting seat, a second channel is arranged at the bottom of the first channel, a base is arranged at the bottom of the second channel, a valve rod is arranged inside the first channel, valve plates are fixedly connected on two sides of the valve rod, a valve body is fixedly connected at the bottom of the connecting seat, a limiting sealing plate is fixedly arranged inside the valve body, a sealing cushion is fixedly arranged on the surface of the limiting sealing plate, a communicating pipe is fixedly connected at the bottom of the valve body, an O-shaped sealing ring is arranged on the surface of the valve rod, and a central rotating shaft is movably connected at the bottom of the valve rod, the top of central pivot is equipped with the division board, the both sides of division board are equipped with row's guide hole, the top of division board is equipped with the tetrafluoro sealing ring.

Preferably, the number of the limiting sealing plates is two, the two limiting sealing plates are respectively positioned at the top of the left side and the bottom of the right side of the valve plate, and the limiting sealing plates are semicircular.

Preferably, the circular outer wall of valve plate all is equipped with sealed the pad, and the smooth frictional resistance that receives of sealed pad surface is little.

Preferably, the sealing cushion is fixedly arranged on one side, close to the valve plate, of the limiting sealing plate, and the sealing cushion has elasticity.

Preferably, the division board is circular structure, and the division board is slope structure and is thirty degrees with horizontal plane contained angle degrees, the division board centre of a circle is equipped with circular poroid structure, and circular poroid area is the same with the valve rod sectional area, division board outer wall and base inner wall welding.

Preferably, the hole-shaped area of the outer side of the row of guide holes is smaller than the hole-shaped area of the inner side of the row of guide holes.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this binary channels centrifugal butterfly valve, through increasing spacing closing plate and sealed cushion, when the valve rod drives the valve plate and rotates and close, sealed cushion takes place to warp under the valve plate pressure effect, with spacing closing plate combined action, seal the gap between valve plate and the valve body, improved the closed leakproofness of butterfly valve at the during operation, avoided when the valve body is closed, because of the leakproofness is poor, lead to carrying the condition appearance that the material leads to through valve plate and valve body interface gap.

2. This binary channels centrifugal butterfly valve, through increasing O type sealing washer, division board and row's guide hole, improve the sealed effect between valve rod and valve body through being equipped with O type sealing washer, avoid a large amount of liquid to carry the material to flow in the base through the gap, through the slope division board that is equipped with, make the liquid material derive through arranging the guide hole, avoided liquid to pile up inside the base and lead to producing the corruption to the center pivot, the wearing and tearing of center pivot have been avoided, the cost of maintenance when the butterfly valve drops into the use has been reduced, the life of valve body has been prolonged.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a bottom perspective view of the structure of the present invention;

fig. 3 is a schematic view of the base structure of the present invention.

In the figure: 1. a control knob; 2. a centrifugal control bin; 3. a closed seat; 4. a connecting seat; 5. a seal nut; 6. a first channel; 7. a second channel; 8. a valve stem; 9. a limit sealing plate; 10. a communicating pipe; 11. a base; 12. a valve body; 13. a valve plate; 14. an O-shaped sealing ring; 15. sealing the soft cushion; 16. a separator plate; 17. a tetrafluoro seal ring; 18. a central rotating shaft; 19. and (4) arranging guide holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a dual-channel centrifugal butterfly valve comprises a control knob 1, a centrifugal control chamber 2 is arranged on the left side of the control knob 1, a sealing seat 3 is fixedly connected on the left side of the centrifugal control chamber 2, a connecting seat 4 is fixedly connected on the bottom of the centrifugal control chamber 2, sealing nuts 5 are arranged on two sides of the connecting seat 4, a first channel 6 is fixedly connected on the bottom of the connecting seat 4, a second channel 7 is arranged on the bottom of the first channel 6, a base 11 is arranged on the bottom of the second channel 7, a valve rod 8 is arranged inside the first channel 6, valve plates 13 are fixedly connected on two sides of the valve rod 8, sealing gaskets are arranged on the circular outer walls of the valve plates 13, the smooth friction resistance on the surfaces of the sealing gaskets is small, and the sealing gaskets are additionally arranged on the outer wall surfaces of the valve plates 13, so that the gap between the valve plates 13 and the inner wall of a valve body 12 in the rotating process is reduced, and fluid materials are prevented from being led out through the gap, by arranging the sealing gasket, the sealing performance of the valve body 12 is improved, the bottom of the connecting seat 4 is fixedly connected with the valve body 12, the limiting sealing plate 9 is fixedly arranged inside the valve body 12, the bottom of the limiting sealing plate 9 is welded with the valve body 12 without a welding seam, the number of the limiting sealing plates 9 is two, the two limiting sealing plates 9 are respectively positioned at the top of the left side and the bottom of the right side of the valve plate 13, the limiting sealing plate 9 is in a semicircular ring shape, the limiting sealing plate 9 is arranged to ensure that the valve plate 13 can normally rotate, the sealing performance of the device is improved, the gap between the valve plate 13 and the valve body 12 is sealed by the combined action of the limiting sealing plate 9 and the sealing cushion 15, the fluid is prevented from being led out, the sealing cushion 15 is fixedly arranged on the surface of the limiting sealing plate 9, the sealing cushion 15 is fixedly arranged on one side, close to the valve plate 13, of the limiting sealing plate 9, and the sealing cushion 15 has elasticity, when the valve plate 13 is closed, the sealing soft cushion 15 is deformed under stress, so that a gap between the valve plate 13 and the valve body 12 is blocked, the phenomenon that the gap between the valve plate 13 and the valve body 12 is too large, fluid is led out through the gap, and the effect of cutoff is not achieved is avoided, the bottom of the valve body 12 is fixedly connected with the communicating pipe 10, the surface of the valve rod 8 is provided with the O-shaped sealing ring 14, the bottom of the valve rod 8 is movably connected with the central rotating shaft 18, the top of the central rotating shaft 18 is provided with the isolating plate 16, the isolating plate 16 is of a circular structure, the degree of an included angle between the inclined structure and the horizontal plane of the isolating plate 16 is thirty degrees, the center of the isolating plate 16 is provided with a circular hole-shaped structure, the circular hole-shaped area is the same as the sectional area of the valve rod 8, the outer wall of the isolating plate 16 is welded with the inner wall of the base 11, the fluid is further blocked through the circular structure of the isolating plate 16, and a small amount of liquid penetrating through the PTFE sealing ring 17 is prevented from further flowing into the base 11, and the division plate 16 is a thirty-degree-angle inclined plane, under the action of gravity, fluid flows to the guide hole 19 on the inclined surface, the outer wall of the division plate 16 is welded with the inside of the base 11, no welding seam exists, the phenomenon that the liquid flows into the inside of the base 11, and the central rotating shaft 18 is corroded due to long-time accumulation, so that the normal use of the device is influenced is avoided, the guide holes 19 are arranged on the two sides of the division plate 16, the pore-shaped area on the outer side of each guide hole 19 is smaller than that of the inner hole, the outer surface area of each guide hole 19 is smaller than that of the inner hole, impurities in the external environment are prevented from being directly introduced into the device through the aperture, the working environment in the device is ensured, the tetrafluoro seal ring 17 is arranged on the top of the division plate 16, the tetrafluoro seal ring 17 is made of polytetrafluoroethylene, good corrosion resistance and sealing performance are achieved, and the situation that the fluid is prevented from being abraded when being introduced into the base 11 is avoided, the PTFE sealing ring 17 has high sealing performance, and meanwhile, the later maintenance cost is also reduced.

The theory of operation, when valve body 12 carries out the during operation, valve rod 8 takes place to rotate and drives valve plate 13 and rotate ninety degrees, valve body 12 is the open mode, when valve body 12 closed, valve rod 8 drives valve plate 13 and rotates ninety degrees in the opposite direction, valve plate 13 resets, sealed cushion 15 atress warp, spacing closing plate 9 provides the opposite direction effort of sealed cushion 15, reach the shutoff to the gap between valve plate 13 and valve body 12, the condition of having avoided the fluid to derive through the clearance takes place, when valve body 12 operates, tetrafluoro sealing ring 17 avoids the fluid to pass through the leading-in base 11 of gap between valve rod 8 and valve body 12, division board 16 further protects, a small amount of fluid material passes through tetrafluoro sealing ring 17, flow out through discharge hole 19 at division board 16 inclined surface, avoid central pivot 18 to corrode, ensure the normal operating of device, can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A two-channel centrifugal butterfly valve comprises a control knob (1), and is characterized in that: the centrifugal control device is characterized in that a centrifugal control bin (2) is arranged on the left side of the control knob (1), a sealing seat (3) is fixedly connected on the left side of the centrifugal control bin (2), a connecting seat (4) is fixedly connected on the bottom of the centrifugal control bin (2), sealing nuts (5) are arranged on two sides of the connecting seat (4), a first channel (6) is fixedly connected on the bottom of the connecting seat (4), a second channel (7) is arranged on the bottom of the first channel (6), a base (11) is arranged on the bottom of the second channel (7), a valve rod (8) is arranged inside the first channel (6), valve plates (13) are fixedly connected on two sides of the valve rod (8), a valve body (12) is fixedly connected on the bottom of the connecting seat (4), a limiting sealing plate (9) is fixedly arranged inside the valve body (12), and a sealing cushion (15) is fixedly arranged on the surface of the limiting sealing plate (9), the bottom fixedly connected with communicating pipe (10) of valve body (12), the surface of valve rod (8) is equipped with O type sealing washer (14), the bottom swing joint of valve rod (8) has central pivot (18), the top of central pivot (18) is equipped with division board (16), the both sides of division board (16) are equipped with row's guide hole (19), the top of division board (16) is equipped with tetrafluoro sealing ring (17).

2. The dual channel centrifugal butterfly valve of claim 1, wherein: the number of the limiting sealing plates (9) is two, the two limiting sealing plates (9) are respectively located at the top of the left side and the bottom of the right side of the valve plate (13), and the limiting sealing plates (9) are semicircular.

3. The dual channel centrifugal butterfly valve of claim 1, wherein: the circular outer wall of valve plate (13) all is equipped with sealed the pad, and sealed smooth frictional resistance that receives in pad surface is little.

4. The dual channel centrifugal butterfly valve of claim 1, wherein: the sealing soft pad (15) is fixedly arranged on one side, close to the valve plate (13), of the limiting sealing plate (9), and the sealing soft pad (15) has elasticity.

5. The dual channel centrifugal butterfly valve of claim 1, wherein: division board (16) are circular structure, and division board (16) are the slope structure and are thirty degrees with horizontal angle degree of degrees, the division board (16) centre of a circle is equipped with circular poroid structure, and circular poroid area is the same with valve rod (8) sectional area, division board (16) outer wall and base (11) inner wall welding.

6. The dual channel centrifugal butterfly valve of claim 1, wherein: the hole-shaped area of the outer side of the row guide hole (19) is smaller than that of the inner side.