CN216742904U - Novel half lining tetrafluoro flange butterfly valve - Google Patents

Abstract

The utility model relates to a butterfly valve equipment technical field especially relates to a novel half lining tetrafluoro flange butterfly valve. Its technical scheme includes body and fluorine cover, the terminal surface opening part outside all is fixed with the ring flange around the body, department is equipped with the disk seat in the middle of the up end of body, the mounting hole has all been seted up to the both sides of body, and the outer end screw thread of mounting hole installs the bolt, fluorine cover grafting is in the inside of body, the opening has all been seted up to the terminal surface around the fluorine cover, department rotates in the middle of the inside of fluorine cover and installs the pivot, and the middle department of pivot is fixed with the valve block, the big or small looks adaptation of valve block and fluorine cover, the fixed slot has all been seted up to the both sides of fluorine cover, and the fixed slot corresponds with the mounting hole, the bolt bottom is installed in corresponding fixed slot. The utility model discloses possess the detachable lag, be convenient for with trade and improve sealing performance's advantage.

Description

Novel half lining tetrafluoro flange butterfly valve

Technical Field

The utility model relates to a butterfly valve equipment technical field specifically is a novel half lining tetrafluoro flange butterfly valve.

Background

The PTFE lining butterfly valve is used for adapting to corrosive environments with strong acid and strong base and the requirements of a plurality of special fields such as petroleum, chemical engineering, food and the like, PTFE is lined in a valve and on a valve plate of a conventional butterfly valve, so that a medium is isolated from the valve body, and the anti-corrosion effect is achieved. Can replace a stainless steel valve body under the conventional conditions, and has higher cost performance. The butterfly plate of the butterfly valve is arranged in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, the rotation angle is 0-90 degrees, and when the disc-shaped butterfly plate rotates to 90 degrees, the valve is in a full-open state. In order to better meet the requirement of modern automatic control, the Teflon-lined butterfly valve can be matched with an electric actuator and a pneumatic actuator, and the operation can be controlled by inputting a control signal and a single-phase power supply, so that the intelligent type and the switch type can be realized. The device has the advantages of strong function, small volume, portability, good comfortableness, reliable performance, simple matching and high flow capacity, and is particularly suitable for occasions with viscous media, particles and fibers.

The difference between the full lining and the half lining of the butterfly valve with rubber lining mainly lies in the position of the rubber lining: the full-lining butterfly valve is a valve plate and a valve body; half lining means lining only the valve plate, or lining only the valve body. The polytetrafluoroethylene protective layer of the existing half-lining polytetrafluoroethylene butterfly valve cannot be disassembled, when the valve body is overhauled and maintained, the whole valve body needs to be replaced, the practicability is poor, and the use is inconvenient; and the current butterfly valve carries out the inside uncovered angle change of pipeline through the valve block, and the governing valve state of opening, the leakproofness is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel half lining tetrafluoro flange butterfly valve possesses the detachable lag, is convenient for with trade and improve sealing performance's advantage, solves the problem among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel half lining tetrafluoro flange butterfly valve, includes body and fluorine cover, the terminal surface opening part outside all is fixed with the ring flange around the body, department is equipped with the disk seat in the middle of the up end of body, the mounting hole has all been seted up to the both sides of body, and the outer end screw thread of mounting hole installs the bolt, fluorine cover plug-in is in the inside of body, the opening has all been seted up to the terminal surface around the fluorine cover, department rotates in the middle of the inside of fluorine cover installs the pivot, and the middle department of pivot is fixed with the valve block, the valve block is with the big or small looks adaptation of fluorine cover.

Preferably, the two sides of the fluorine sleeve are both provided with fixing grooves, the fixing grooves correspond to the mounting holes, and the bottom end of the bolt is mounted in the corresponding fixing grooves. The fluorine sleeve and the pipe body are connected and fixed through the bolt connection fixing groove in the mounting hole.

Preferably, the joint of the flange plate and the pipe body is designed as a notch, a sealing ring is sleeved in a groove on the inner side of the flange plate, and the sealing ring corresponds to the joint of the pipe body and the fluorine sleeve. Realize the sealed of body and fluorine cover junction through the sealing washer, when the ring flange was connected with external pipe, external pipe laminating sealing washer extrusion was realized fixedly.

Preferably, the opening is equipped with two altogether, and two openings are the dislocation and distribute, the opening part inboard of opening is fixed with the sealing gasket, and sealing gasket and valve block looks adaptation. The fluid flows in the fluorine sleeve through the port, and the sealing gasket is in a closed state when the valve plate is attached, so that the sealing performance is improved.

Preferably, the height of sealing pad is the same with the height of fluorine cover, the sealing pad laminating opening, and the junction of sealing pad and valve block is the arc angle design. The sealing performance is ensured through the high adaptation of the sealing gasket, the valve block is convenient to laminate, and the arc angle design of the sealing gasket avoids friction in the rotation process of the valve block.

Compared with the prior art, the beneficial effects of the utility model are as follows: when in installation, an operator inserts the fluorine sleeve into the pipe body, a valve seat at the upper end of the pipe body is butted with the top end of a rotating shaft of a valve block inside the fluorine sleeve, fixing grooves at two sides of the fluorine sleeve correspond to the installation hole, a bolt is installed in the installation hole in a threaded manner, the bottom end of the bolt is fixed in the fixing grooves, a sealing ring is sleeved on the inner side of a flange after the installation is finished, the sealing ring corresponds to the joint of the pipe body and the fluorine sleeve, the flange is butted with an external connecting pipeline, in the using process, the valve block is driven to rotate by rotating the valve seat through the rotating shaft, the side wall of the valve block is separated from a sealing gasket, an internal passage of the fluorine sleeve is opened, the flow is adjusted by changing the opening angle of the valve block, and when the side wall of the valve block is completely attached to the sealing gasket, the device is in a sealing state, the device is convenient to overhaul and maintain the device by the detachable and replaceable fluorine sleeve structure, and simultaneously improves the practicability and improves the design of the sealing performance of the device, the use quality of the device is ensured.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic sectional view of the present invention.

In the figure: 1. a valve seat; 2. a flange plate; 3. a pipe body; 4. a fluorine sheath; 5. a port; 6. mounting holes; 7. a bolt; 8. a valve plate; 9. a seal ring; 10. fixing grooves; 11. a rotating shaft; 12. and (7) sealing the pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Example one

Referring to fig. 1 to 3, the present invention provides an embodiment: a novel half lining tetrafluoro flange butterfly valve comprises a pipe body 3 and a fluorine sleeve 4, wherein the outer sides of openings of the front end surface and the rear end surface of the pipe body 3 are respectively fixed with a flange 2, the joint of the flange 2 and the pipe body 3 is designed as a notch, a sealing ring 9 is sleeved in a groove at the inner side of the flange 2, the sealing ring 9 is corresponding to the joint of the pipe body 3 and the fluorine sleeve 4, the joint of the pipe body 3 and the fluorine sleeve 4 is sealed through the sealing ring 9, when the flange 2 is connected with an external pipeline, the external pipeline is fixed by being pressed by the joint sealing ring 9, the valve seat 1 is arranged in the middle of the upper end face of the pipe body 3, the two sides of the pipe body 3 are both provided with mounting holes 6, and the outer end of the mounting hole 6 is provided with a bolt 7 in a threaded manner, both sides of the fluorine sleeve 4 are provided with fixing grooves 10, and the fixing grooves 10 correspond to the mounting holes 6, the bottom ends of the bolts 7 are mounted in the corresponding fixing grooves 10, the fluorine sleeve 4 and the pipe body 3 are connected and fixed through the bolt 7 in the mounting hole 6 and the fixing groove 10.

Example two

Referring to fig. 1 to 3, the present invention provides an embodiment: a novel half-lining PTFE flange butterfly valve comprises a pipe body 3 and a fluorine sleeve 4, wherein the fluorine sleeve 4 is inserted in the pipe body 3, the front end surface and the rear end surface of the fluorine sleeve 4 are respectively provided with two through holes 5, the two through holes 5 are arranged, the two through openings 5 are distributed in a staggered manner, the inner sides of the openings of the through openings 5 are fixed with sealing pads 12, the sealing pads 12 are matched with the valve plates 8, fluid flows in the fluorine sleeve 4 through the through hole 5, the sealing gasket 12 ensures that the valve plate 8 is in a closed state when being attached, the sealing performance is improved, the rotating shaft 11 is rotatably arranged in the middle of the inside of the fluorine sleeve 4, a valve plate 8 is fixed in the middle of the rotating shaft 11, the valve plate 8 is matched with the fluorine sleeve 4 in size, the height of a sealing pad 12 is the same as that of the fluorine sleeve 4, the sealing pad 12 is attached to the through hole 5, the joint of the sealing pad 12 and the valve plate 8 is designed to be an arc angle, the sealing performance is ensured through the height adaptation of the sealing pad 12, the valve plate 8 is convenient to attach, and the arc angle design of the sealing pad 12 avoids friction in the rotation process of the valve plate 8.

The working principle is as follows: the utility model discloses in operation, during the installation, the operator is inside 4 grafting entering body 3 with fluorine cover, make 3 upper end disk seats of body 1 and the 11 top docks in pivot of 4 inside valve blocks of fluorine cover, make 4 both sides fixed slot 10 of fluorine cover correspond with mounting hole 6, install bolt 7 screw thread in mounting hole 6, the bottom mounting of bolt 7 is in fixed slot 10, the installation is finished the back and is cup jointed sealing washer 9 in the inboard of ring flange 2, make sealing washer 9 correspond the junction of body 3 and fluorine cover 4, improve the leakproofness, dock ring flange 2 with the external connection pipeline, in the use, it rotates to rotate disk seat 1 through pivot 11 drive valve block 8, 8 lateral walls of valve block and the separation of seal pad 12, make 4 inside passageways of fluorine cover open, through the opening angle who changes valve block 8, the regulation flow size, when 8 lateral walls of valve block and seal pad 12 paste completely, be encapsulated situation. The working principle of the present invention is the above.

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 (5)

1. The utility model provides a novel half lining tetrafluoro flange butterfly valve, includes body (3) and fluorine cover (4), its characterized in that: all be fixed with ring flange (2) in the front and back terminal surface opening part outside of body (3), department is equipped with disk seat (1) in the middle of the up end of body (3), mounting hole (6) have all been seted up to the both sides of body (3), and the outer end screw thread of mounting hole (6) installs bolt (7), fluorine cover (4) are pegged graft in the inside of body (3), opening (5) have all been seted up to the front and back terminal surface of fluorine cover (4), department rotates in the middle of the inside of fluorine cover (4) and installs pivot (11), and the middle department of pivot (11) is fixed with valve block (8), valve block (8) and the big or small looks adaptation of fluorine cover (4).

2. The novel half lining tetrafluoro flange butterfly valve of claim 1, characterized in that: fixing grooves (10) are formed in the two sides of the fluorine sleeve (4), the fixing grooves (10) correspond to the mounting holes (6), and the bottom ends of the bolts (7) are mounted in the corresponding fixing grooves (10).

3. The novel half-lined tetrafluoro flange butterfly valve of claim 1, wherein: the connection part of the flange plate (2) and the pipe body (3) is designed to be a notch, a sealing ring (9) is sleeved in a groove on the inner side of the flange plate (2), and the sealing ring (9) corresponds to the connection part of the pipe body (3) and the fluorine sleeve (4).

4. The novel half-lined tetrafluoro flange butterfly valve of claim 1, wherein: opening (5) are equipped with two altogether, and two openings (5) are the dislocation and distribute, the opening part inboard of opening (5) is fixed with sealing gasket (12), and sealing gasket (12) and valve block (8) looks adaptation.

5. The novel half lining tetrafluoro flange butterfly valve of claim 4, characterized in that: the height of sealing pad (12) is the same with the height of fluorine cover (4), sealing pad (12) laminating through port (5), and the junction of sealing pad (12) and valve block (8) is the arc angle design.

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