CN214888913U

CN214888913U - Corrugated pipe type metal sealing butterfly valve

Info

Publication number: CN214888913U
Application number: CN202120620611.1U
Authority: CN
Inventors: 谭薇娜
Original assignee: Liaoning Natai Technology Co ltd
Current assignee: Liaoning Natai Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-11-26
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a bellows type metal seal butterfly valve, the water-cooled butterfly valve comprises a valve body, the upper surface central point of valve body puts and installs the lower flange, and the upper surface of lower flange has the upper flange through bolted connection, the last surface mounting of upper flange has an upper bracket section of thick bamboo, the last surface mounting of an upper bracket section of thick bamboo has transmission, be provided with the recess on the inner wall of valve body, the lower surface mounting of valve body has a lower bracket section of thick bamboo. The utility model discloses when liquid temperature is high in the valve body, can make the valve body expend with heat and contract with cold the phenomenon, the second bellows is compensated axial, horizontal heat altered shape in to the pipeline to when the earthquake takes place, when sinking into the ground, the second bellows also can absorb the deflection of multi-channel, avoids the valve body to appear the gap with being connected of pipeline and makes liquid leak, causes the accident, takes place dangerously, very big improvement its security.

Description

Corrugated pipe type metal sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a bellows type metal seal butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

When the defect that present bellows type metal seal butterfly valve exists:

1. the valve plate of the existing corrugated pipe type metal sealing butterfly valve is not easy to replace, is relatively wasteful and economical, is not replaced frequently, is easy to corrode and age the inside of the valve body, and causes accidents and dangers.

2. The existing bellows type metal sealing butterfly valve has poor sealing performance on a valve body, and liquid leakage is often found late and is not time to replace.

3. The existing corrugated pipe type metal sealing butterfly valve is easy to cause the occurrence of gaps in the valve body due to the expansion with heat and contraction with cold of high-temperature liquid, so that the liquid leakage is caused, and the valve body can not play a certain protection role when an earthquake or a ground subsidence occurs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bellows type metal seal butterfly valve to solve the problem that proposes 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 bellows type metal seal butterfly valve, includes the valve body, the upper surface central point of valve body puts and installs the lower flange, and there is the upper flange upper surface of lower flange through bolted connection, the upper surface mounting of upper flange has an upper bracket section of thick bamboo, the upper surface mounting of an upper bracket section of thick bamboo has transmission, transmission's rear end face is provided with the governing valve, be provided with the recess on the inner wall of valve body, the lower surface mounting of valve body has a lower bracket section of thick bamboo.

Preferably, a valve cover is arranged between the upper flange and the lower flange, and a second corrugated pipe is arranged at the bottom end of the valve cover.

Preferably, the inside of upper bracket section of thick bamboo is provided with the valve rod, and the one end of going up the valve rod is connected with transmission, and the other end of going up the valve rod passes first through-hole (4) on the valve body and is connected with the valve plate, and the other end of going up the valve rod is installed in last valve rod cover, and is provided with the taper pin on the inner wall of one side of going up the valve rod cover, and the outer wall top of going up the valve rod is provided with the axle sleeve, and 0 type sealing washer of second is installed to the below of axle sleeve.

Preferably, the rear end face of the transmission device is provided with a regulating valve.

Preferably, a first corrugated pipe is arranged in the groove, one end of the first corrugated pipe is connected with the valve body, the other end of the first corrugated pipe is connected with the annular pressing plate, and the annular pressing plate is connected with the valve body through a bolt.

Preferably, the inside of lower carriage section of thick bamboo is provided with lower valve rod, and the one end of lower valve rod is passed the second through-hole on the valve body and is connected with the valve plate, and the one end of lower valve rod is installed in lower valve rod cover, and the outer wall below of lower valve rod is provided with first 0 type sealing washer, and the bottom of lower carriage section of thick bamboo is provided with the ring flange, and the cover is equipped with the sealing washer on the outer wall of valve plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the ring flange, go up the flange, the lower flange, go up the valve rod, lower valve rod, the valve plate, the sealing washer, go up the valve rod cover, the cooperation setting of lower valve rod cover and taper pin, when valve plate or sealing washer received the ageing scheduling problem of corruption, twist and move the bolt and open ring flange and last flange, take off the taper pin on going up the valve rod cover, will go up the valve rod and take out with lower valve rod, thereby change valve plate or sealing washer, easy operation, it is economic to save, the periodic replacement can be very big avoid unnecessary occurence of failure, staff's security has been strengthened.

2. Through the cooperation setting of second bellows, 0 type sealing washer of second, valve gap, upper flange, lower flange and valve body, when liquid process valve body, the second bellows plays the sealed effect of separation to liquid, if the time is of a specified duration, infiltration phenomenon may appear, then 0 type sealing washer of second is to the sealed effect of infiltration liquid and separation, improves the life of device, slows down the time of liquid leakage.

3. Through the cooperation setting of annular pressure plate, first bellows and valve body, when liquid temperature was high in the valve body, can make the valve body expend with heat and contract with cold the phenomenon, the second bellows is to axial in the pipeline, horizontal heat altered shape compensates to when the emergence earthquake, when sinking into the ground, the second bellows also can absorb the deflection of multi-channel, the gap appears in the connection of avoiding valve body and pipeline and makes liquid leak, causes the accident, takes place dangerously, very big improvement its security.

Drawings

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

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic structural diagram of a point a in fig. 1 according to the present invention.

In the figure: 1. a transmission device; 2. adjusting a valve; 3. a valve body; 4. a first through hole; 5. a seal ring; 6. a valve plate; 7. a second through hole; 8. a first type 0 seal ring; 9. a flange plate; 10. a lower carriage cylinder; 11. an annular pressure plate; 12. a first bellows; 13. a lower valve stem sleeve; 14. an upper valve stem sleeve; 15. a taper pin; 16. a groove; 17. an upper valve stem; 18. an upper bracket barrel; 19. a valve cover; 20. a second bellows; 21. a lower flange; 22. an upper flange; 23. a second type 0 seal ring; 24. a shaft sleeve; 25. and a lower valve rod.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a corrugated pipe type metal sealing butterfly valve comprises a valve body 3, a lower flange 21 is installed at the center of the upper surface of the valve body 3, an upper flange 22 is connected to the upper surface of the lower flange 21 through bolts, a valve cover 19 is arranged between the upper flange 22 and the lower flange 21, a second corrugated pipe 20 is arranged at the bottom end of the valve cover 19, an upper support barrel 18 is installed on the upper surface of the upper flange 22, an upper valve rod 17 is arranged inside the upper support barrel 18, one end of the upper valve rod 17 is connected with a transmission device 1, the other end of the upper valve rod 17 penetrates through a first through hole (4) in the valve body 3 to be connected with a valve plate 6, the other end of the upper valve rod 17 is installed in an upper valve rod sleeve 14, a conical pin 15 is arranged on the inner wall of one side of the upper valve rod sleeve 14, a shaft sleeve 24 is arranged above the outer wall of the upper valve rod 17, a second 0-type sealing ring 23 is installed below the shaft sleeve 24, when liquid passes through the valve body 3, the second corrugated pipe 20 plays a role in blocking and sealing, if the time is long, the permeation phenomenon may occur, then the second 0-type sealing ring 23 has a sealing function for permeating liquid and blocking, the service life of the device is prolonged, and the time for liquid leakage is reduced, the transmission device 1 is installed on the upper surface of the upper bracket barrel 18, the adjusting valve 2 is arranged on the rear end surface of the transmission device 1, the groove 16 is arranged on the inner wall of the valve body 3, the first corrugated pipe 12 is arranged in the groove 16, one end of the first corrugated pipe 12 is connected with the valve body 3, the other end of the first corrugated pipe 12 is connected with the annular pressing plate 11, the annular pressing plate 11 is connected with the valve body 3 through bolts, when the temperature of liquid in the valve body 3 is high, the valve body 3 expands with heat and contracts with cold, the second corrugated pipe 20 compensates the axial and transverse thermal deformation in the pipeline, and when an earthquake occurs and the ground falls, the second corrugated pipe 20 can absorb the deformation of the multiple pipelines, so as to avoid the liquid leakage caused by the occurrence of gaps in the connection between the valve body 3 and the pipelines, the lower support cylinder 10 is arranged on the lower surface of the valve body 3, the lower valve rod 25 is arranged inside the lower support cylinder 10, one end of the lower valve rod 25 penetrates through the second through hole 7 on the valve body 3 to be connected with the valve plate 6, one end of the lower valve rod 25 is arranged in the lower valve rod sleeve 13, the first 0-type sealing ring 8 is arranged below the outer wall of the lower valve rod 25, the flange 9 is arranged at the bottom end of the lower support cylinder 10, the sealing ring 5 is sleeved on the outer wall of the valve plate 6, when the valve plate 6 or the sealing ring 5 is corroded, and the like, the flange 9 and the upper flange 22 are opened by screwing a bolt, the conical pin 15 on the upper valve rod sleeve 14 is taken down, the upper valve rod 17 and the lower valve rod 25 are drawn out, so that the valve plate 6 or the sealing ring 5 is replaced, the operation is simple, the economy is saved, unnecessary accidents can be greatly avoided by replacing the valve plate 6 or the sealing ring 5 at regular time, the safety of workers is enhanced.

The working principle is as follows: when the valve plate 6 or the sealing ring 5 is corroded and aged, the flange 9 and the upper flange 22 are opened by the movable bolt, the conical pin 15 on the upper valve rod sleeve 14 is taken down, the upper valve rod 17 and the lower valve rod 25 are taken out, thereby change valve plate 6 or sealing washer 5, easy operation saves economy, and the periodic replacement can be very big avoids unnecessary occurence of failure, has strengthened staff's security.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a bellows type metal seal butterfly valve, includes valve body (3), its characterized in that: the upper surface central point of valve body (3) puts and installs lower flange (21), and there are upper flange (22) upper surface of lower flange (21) through bolted connection, the upper surface mounting of upper flange (22) has upper bracket section of thick bamboo (18), the upper surface mounting of upper bracket section of thick bamboo (18) has transmission (1), be provided with recess (16) on the inner wall of valve body (3), the lower surface mounting of valve body (3) has lower bracket section of thick bamboo (10).

2. The bellows-type metal seal butterfly valve of claim 1, wherein: a valve cover (19) is arranged between the upper flange (22) and the lower flange (21), and a second corrugated pipe (20) is arranged at the bottom end of the valve cover (19).

3. The bellows-type metal seal butterfly valve of claim 1, wherein: the valve plate is characterized in that an upper valve rod (17) is arranged inside the upper support barrel (18), one end of the upper valve rod (17) penetrates through a first through hole (4) in the valve body (3) to be connected with the valve plate (6), one end of the upper valve rod (17) is installed in an upper valve rod sleeve (14), a conical pin (15) is arranged on the inner wall of one side of the upper valve rod sleeve (14), a shaft sleeve (24) is arranged above the outer wall of the upper valve rod (17), and a second 0-type sealing ring (23) is installed below the shaft sleeve (24).

4. The bellows-type metal seal butterfly valve of claim 1, wherein: and the rear end face of the transmission device (1) is provided with a regulating valve (2).

5. The bellows-type metal seal butterfly valve of claim 1, wherein: a first corrugated pipe (12) is arranged in the groove (16), one end of the first corrugated pipe (12) is connected with the valve body (3), the other end of the first corrugated pipe (12) is connected with the annular pressing plate (11), and the annular pressing plate (11) is connected with the valve body (3) through bolts.

6. The bellows-type metal seal butterfly valve of claim 1, wherein: the valve is characterized in that a lower valve rod (25) is arranged inside the lower support cylinder (10), one end of the lower valve rod (25) penetrates through a second through hole (7) in the valve body (3) to be connected with the valve plate (6), one end of the lower valve rod (25) is installed in a lower valve rod sleeve (13), a first 0-type sealing ring (8) is arranged below the outer wall of the lower valve rod (25), a flange plate (9) is arranged at the bottom end of the lower support cylinder (10), and a sealing ring (5) is sleeved on the outer wall of the valve plate (6).