CN212297692U

CN212297692U - Double-gate valve for forcing valve disc to rotate for petroleum

Info

Publication number: CN212297692U
Application number: CN202020799690.2U
Authority: CN
Inventors: 吴国庆; 郭爱国; 张红琴
Original assignee: Jiangsu Julong Technology Co ltd
Current assignee: Jiangsu Julong Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2021-01-05
Anticipated expiration: 2030-05-14

Abstract

The utility model discloses a double-gate valve for the rotation of a forcing valve disc for petroleum, which relates to the technical field of double-gate valves and comprises a valve body and a hand wheel, wherein the top end of the valve body is fixedly connected with a valve cover through a bolt, a flashboard is arranged in the valve body, the top end of the flashboard is connected with a valve rod, the top end of the valve rod extends to the upper part of the valve cover, a connecting part is arranged at the bottom end of the hand wheel, and the hand wheel is sleeved at the top part of the valve rod through the connecting part, the utility model can lead the two ends of the valve body to be more tightly spliced with an external pipeline through the arrangement of a convex ring, a connecting groove and a sealing washer, and can further improve the sealing property of the connecting part of the two ends of the valve body and the external pipeline by utilizing the matching of the sealing washer, thereby effectively improving, prevent the wasting of resources, be favorable to the quick transport of oil.

Description

Double-gate valve for forcing valve disc to rotate for petroleum

Technical Field

The utility model belongs to the technical field of the double-gate valve, concretely relates to oil is with double-gate valve of forced valve disc gyration.

Background

The double-gate valve is suitable for being used as closed-circuit equipment on pipelines with water and sewage as media and is not allowed to be used for flow regulation and emptying. It is widely applicable to petroleum, chemical, pharmaceutical and electric industries. The valve is opened and closed on pipelines of steam, water, oil and other media with nominal pressure less than or equal to l.0 MPa. Mainly comprises a parallel double-gate valve, a parallel single-gate valve, an open-stem parallel double-gate valve and an open-stem parallel single-gate valve.

However, the double-gate valve for forcing the valve disc to rotate for petroleum in the current market has defects in the using process, such as: the leakproofness of valve body both ends and outside pipe connection department is poor, leads to fluid to spill over along the gap easily, causes the wasting of resources, influences the quick transport of oil simultaneously, in addition, does not set up guide structure, and the hand wheel can not slide the dismouting, and the quick assembly disassembly of the hand wheel of being not convenient for influences the quick replacement of hand wheel.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-gate valve of forced valve disc gyration is used to oil to solve the valve body both ends that propose among the above-mentioned background art and the leakproofness of outside pipe connection department poor, lead to fluid to spill over easily, the hand wheel can not slide the dismouting in addition, the quick assembly disassembly's of the hand wheel of being not convenient for problem.

In order to achieve the above object, the utility model provides a following technical scheme: a dual-gate valve for forcing a valve disc to rotate for petroleum comprises a valve body and a hand wheel, wherein the top end of the valve body is fixedly connected with a valve cover through a bolt, a gate plate is arranged in the valve body, the top end of the gate plate is connected with a valve rod, the top end of the valve rod extends to the upper side of the valve cover, a connecting part is arranged at the bottom end of the hand wheel, the hand wheel is sleeved on the top end of the valve rod through the connecting part, meanwhile, a fastening nut screwed on the top end of the valve rod is arranged at the top end of the hand wheel, an oil outlet end connecting flange is integrally formed at one end of the valve body, an oil inlet end connecting flange is further integrally formed at one end of the valve body opposite to the oil outlet end connecting flange, an oil outlet end is arranged in the middle of the oil inlet end connecting flange, an oil inlet is arranged in the middle of the oil inlet end, the connecting groove inner wall is fixed with seal ring for one side of bulge loop, and seal ring's outer periphery installs six stopper that are the annular array and distribute, simultaneously still set up the spacing groove with six stopper one-to-one on oil outlet end flange's the lateral wall.

Preferably, the middle of the inside of the connecting part is provided with a through hole matched with the valve rod, the inner wall of the through hole is provided with four guide grooves distributed in an annular array, and meanwhile, the top of the valve rod is provided with guide blocks in one-to-one correspondence with the four guide grooves.

Preferably, six mounting holes which are distributed in an annular array are further formed in the oil outlet end connecting flange and close to the edge of the oil outlet end connecting flange, and meanwhile, the structure of the oil inlet end connecting flange is consistent with that of the oil outlet end connecting flange.

Preferably, the opposite corners of the four guide blocks relative to one end of the valve rod are all transited by arc chamfers to form arc parts with smooth surface walls.

Preferably, the limiting block forms an arc end relative to an angle opposite to one end of the sealing washer, and the surface wall is smooth.

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

(1) the utility model can make the two ends of the valve body more compact when being spliced with the external pipeline by arranging the convex ring, the connecting groove and the sealing washer, and can further improve the sealing performance of the connecting part of the two ends of the valve body and the external pipeline by utilizing the matching of the sealing washer, thereby effectively improving the sealing performance of the connecting part of the valve body and the external pipeline, avoiding the overflow of oil liquid, preventing the resource waste and being beneficial to the quick transportation of oil;

in addition, through the setting of stopper and spacing groove, can carry on spacingly to seal ring for seal ring steadiness is in the spread groove, and seal ring takes place the skew when can avoiding installing, helps improving the leakproofness of valve body and outside pipeline junction, and the practicality is better.

(2) The utility model discloses a setting of guide block and guide way can realize that the hand wheel slides and cup joints in the top of valve rod to realize the slip dismouting of hand wheel, the effectual dismouting efficiency that improves the hand wheel is favorable to the quick replacement of hand wheel, with the normal use of guaranteeing double gate valve.

Drawings

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

fig. 2 is a top view of the present invention;

fig. 3 is a bottom view of the hand wheel of the present invention;

fig. 4 is a top view of the valve stem of the present invention;

FIG. 5 is a side view of the oil outlet end connecting flange of the present invention;

FIG. 6 is a side view of the oil inlet end flange of the present invention;

FIG. 7 is an enlarged view taken at A in FIG. 5;

in the figure: 1-a valve body; 2-the oil outlet end is connected with a flange; 3-valve cover; 4-a connecting part; 5-hand wheel; 6-valve stem; 7-connecting a flange at an oil inlet end; 8-fastening a nut; 9-a guide groove; 10-a through hole; 11-a guide block; 12-an arc portion; 13-mounting holes; 14-a limiting block; 15-oil outlet; 16-a connecting trough; 17-a sealing gasket; 18-a convex ring; 19-a limit groove; and 20-oil inlet.

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. 1-7, the present invention provides a technical solution: a dual-gate valve for forcing a valve disc to rotate for petroleum comprises a valve body 1 and a hand wheel 5, wherein the top end of the valve body 1 is fixedly connected with a valve cover 3 through a bolt, a gate plate is arranged in the valve body 1, the top end of the gate plate is connected with a valve rod 6, the top end of the valve rod 6 extends to the upper side of the valve cover 3, a connecting part 4 is arranged at the bottom end of the hand wheel 5, the hand wheel 5 is sleeved on the top end of the valve rod 6 through the connecting part 4, meanwhile, a fastening nut 8 screwed on the top end of the valve rod 6 is arranged at the top end of the hand wheel 5, an oil outlet end connecting flange 2 is integrally formed at one end of the valve body 1, an oil inlet end connecting flange 7 is further integrally formed at one end of the valve body 1 opposite to the oil outlet end connecting flange 2, an oil outlet 15 is formed in the middle of the inside of the, and the side wall of the oil outlet end connecting flange 2 is positioned outside the convex ring 18 and is also provided with a connecting groove 16, one side of the inner wall of the connecting groove 16, which is opposite to the convex ring 18, is fixed with a sealing gasket 17, the outer circumference surface of the sealing gasket 17 is provided with six limiting blocks 14 which are distributed in an annular array, and the side wall of the oil outlet end connecting flange 2 is also provided with limiting grooves 19 which are in one-to-one correspondence with the six limiting blocks 14, when in use, a user firstly connects the external pipeline to the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2 at the two ends of the valve body 1 through the flanges, at the moment, the convex rings 18 on the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2 are respectively clamped into the grooves in the external pipeline connecting flange, and the connecting rings on the external pipeline connecting flange are respectively inserted into the connecting grooves 16 on the oil inlet end connecting flange 7 and the oil outlet, then with fastening bolt precession mounting hole 13 on oil feed end flange 7 and the oil outlet end flange 2 respectively, with outside pipeline flange and the fastening of oil feed end flange 7 and oil outlet end flange 2, with this connection of realization pipeline, wherein seal ring 17 plays sealed effect, the effectual leakproofness that improves the pipe connection department, avoid fluid to spill over, utilize stopper 14 and spacing groove 19 simultaneously, can play spacing effect with seal ring 17, lead to seal ring 17 to take place the skew when avoiding the pipe connection, the leakproofness has further been improved.

Further, a through hole 10 matched with the valve rod 6 is formed in the middle of the inside of the connecting portion 4, four guide grooves 9 distributed in an annular array are formed in the inner wall of the through hole 10, meanwhile, guide blocks 11 corresponding to the four guide grooves 9 in a one-to-one mode are installed at the top of the valve rod 6, when the hand wheel 5 is used for a long time and rusted, a user can firstly disassemble the fastening nut 8 and then pull the hand wheel 5 upwards, at the moment, the guide grooves 9 inside the connecting portion 4 at the bottom of the hand wheel 5 slide along the outer portion of the guide blocks 11 at the top of the valve rod 6 until the guide grooves 9 are separated from the guide blocks 11, namely, the sliding disassembly of the hand wheel 5 is realized, then the user sleeves the new hand wheel 5 on the top of the valve rod 6 through the connecting portion 4 at the bottom of the user and slides the hand wheel 5 downwards through the guide grooves 9 and the guide blocks 11, then the user fastens the fastening nut 8 in the top of the valve rod 6 to fasten the hand wheel 5 on the valve rod 6, thereby realizing the quick assembly and disassembly of the hand wheel 5 and being beneficial to the quick replacement of the hand wheel 5.

Specifically, six mounting holes 13 which are distributed in an annular array are further formed in the oil outlet end connecting flange 2 and close to the edge of the oil outlet end connecting flange, and meanwhile, the structure of the oil inlet end connecting flange 7 is consistent with that of the oil outlet end connecting flange 2, so that the external pipeline connecting flange is connected with the oil outlet end connecting flange 2 and the oil inlet end connecting flange 7, and the pipeline is connected.

It is worth to be noted that the opposite corners of the four guide blocks 11 relative to one end of the valve rod 6 are all transited by arc chamfers to form arc portions 12 with smooth surface walls, so that the guide blocks 11 slide along the inside of the guide grooves 9, and the connecting portion 4 is conveniently and rapidly sleeved on the top of the valve rod 6.

Furthermore, the limiting block 14 forms an arc end relative to the angle opposite to one end of the sealing washer 17, and the surface wall is smooth, so that the limiting block 14 can be rapidly inserted into the limiting groove 19, and the sealing washer 17 can be limited conveniently.

The utility model discloses a theory of operation and use flow: when the utility model is used, the user firstly connects the external pipeline with the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2 at the two ends of the valve body 1 through the flange, at the moment, the convex rings 18 on the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2 are respectively clamped into the grooves in the external pipeline connecting flange, and the connecting rings on the external pipeline connecting flange are respectively inserted into the connecting grooves 16 on the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2, thereby realizing the splicing of the external pipeline connecting flange with the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2, and then the fastening bolts are respectively screwed into the mounting holes 13 on the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2, so as to fasten the external pipeline connecting flange with the oil inlet end connecting flange 7 and the oil outlet end connecting flange 2, thereby realizing the connection of the pipeline, wherein the sealing washer 17 plays a sealing role, the sealing performance of the pipeline joint is effectively improved, oil is prevented from overflowing, meanwhile, the limiting block 14 and the limiting groove 19 are utilized, the sealing gasket 17 can play a limiting role, the sealing gasket 17 is prevented from deviating during pipeline connection, the sealing performance is further improved, then a user can rotate the valve rod 6 through the hand wheel 5 to drive the flashboard inside the valve body 1 to rotate, so that petroleum is conveyed, when the hand wheel 5 is used for a long time and is corroded, the user can firstly disassemble the fastening nut 8 and then pull the hand wheel 5 upwards, at the moment, the guide groove 9 inside the connecting part 4 at the bottom of the hand wheel 5 slides along the outer part of the guide block 11 at the top of the valve rod 6 until the guide groove 9 is separated from the guide block 11, namely, the sliding disassembly of the hand wheel 5 is realized, then the user sleeves a new hand wheel 5 on the top of the valve rod 6 through the connecting part 4 at the bottom of the hand wheel, and slides the hand wheel 5 downwards through, the inside top of contradicting guide way 9 up to the top of guide block 11, then the user fastens fastening nut 8 spiro union in the top of valve rod 6 to fasten hand wheel 5 on valve rod 6, thereby realize the quick assembly disassembly of hand wheel 5, be favorable to the quick replacement of hand wheel 5.

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. The utility model provides a double gate valve that oil was with forcing valve disc gyration which characterized in that: comprises a valve body (1) and a hand wheel (5), wherein the top end of the valve body (1) is fixedly connected with a valve cover (3) through a bolt, a flashboard is arranged in the valve body (1), the top end of the flashboard is connected with a valve rod (6), the top end of the valve rod (6) extends to the upper part of the valve cover (3), a connecting part (4) is arranged at the bottom end of the hand wheel (5), the hand wheel (5) is sleeved at the top part of the valve rod (6) through the connecting part (4), meanwhile, the top part of the hand wheel (5) is provided with a fastening nut (8) screwed with the top end of the valve rod (6), an oil outlet end connecting flange (2) is integrally formed at one end of the valve body (1), an oil inlet end connecting flange (7) is further integrally formed at one end of the valve body (1) relative to the oil outlet end connecting flange (, oil inlet (20) have been seted up in the middle of the inside of oil feed end flange (7), oil outlet end flange (2) are formed with bulge loop (18) for the middle of one side of valve body (1), and the outside that oil outlet end flange (2) lateral wall is located bulge loop (18) has still seted up spread groove (16), spread groove (16) inner wall is fixed with seal ring (17) for one side of bulge loop (18), and the outer periphery of seal ring (17) installs six stopper (14) that are the annular array and distribute, simultaneously still set up spacing groove (19) with six stopper (14) one-to-one on the lateral wall of oil outlet end flange (2).

2. The dual gate valve for oil valve disc rotation according to claim 1, characterized in that: seted up in the middle of the inside of connecting portion (4) with valve rod (6) assorted through-hole (10), and the inner wall of through-hole (10) sets up four guide way (9) that are the annular array and distribute, simultaneously guide block (11) with four guide way (9) one-to-one are installed at the top of valve rod (6).

3. The dual gate valve for oil valve disc rotation according to claim 1, characterized in that: the inside of producing oil end flange (2) and be close to its border department and still set up six mounting holes (13) that are the annular array and distribute, simultaneously the structure of oil inlet end flange (7) is unanimous with the structure of producing oil end flange (2).

4. The dual gate valve for oil valve disc rotation according to claim 2, characterized in that: the opposite angles of the four guide blocks (11) relative to one end of the valve rod (6) are in arc chamfer transition to form arc parts (12) with smooth surface walls.

5. The dual gate valve for oil valve disc rotation according to claim 1, characterized in that: the limiting block (14) forms an arc end relative to an angle opposite to one end of the sealing washer (17), and the surface wall is smooth.