阅读说明：本技术 一种带有缓冲结构的石油石化阀门 (Petroleum and petrochemical valve with buffer structure ) 是由 于雷 于 2021-08-19 设计创作，主要内容包括：本发明属于阀门领域,具体的说是一种带有缓冲结构的石油石化阀门,包括把手,所述把手的底部转动连接有阀体,所述阀体的左侧固定连接有进油管,所述进油管的右侧设置有出油管。该带有缓冲结构的石油石化阀门通过设置止回机构,当调节机构和控制机构都关闭时,由于进油端压力骤降,出油管的内部极易发生水锤效应石油反向回流,浮球由于失去浮力,在反向冲击力和重力作用下,做以连接杆为圆心的顺时针运动,缓冲套的内表面被浮球的外表面堵住,止回板反向关闭,弹片收缩,出油管内部的两端关闭,多层防护,防止水锤效应损坏阀门,配合调节机构,不论内部石油如何流动,控制机构两侧始终受到保护,解决了传统阀门两侧缺乏缓冲机构的问题。(The invention belongs to the field of valves, and particularly relates to a petroleum and petrochemical valve with a buffer structure. This petroleum and petrochemical industry valve with buffer structure is through setting up non return mechanism, when adjustment mechanism and control mechanism all close, because oil inlet end pressure dip, the inside of play oil pipe is very easily taken place water hammer effect oil backward flow, the floater is owing to lose buoyancy, under reverse impact force and action of gravity, the clockwise motion with the connecting rod as the centre of a circle, the internal surface of cushion collar is stopped up by the surface of floater, the non return board is reverse to be closed, the shell fragment shrink, the inside both ends of play oil pipe are closed, the multilayer protection, prevent that water hammer effect from damaging the valve, cooperation adjustment mechanism, no matter how inside oil flows, the control mechanism both sides receive the protection all the time, the problem that traditional valve both sides lack buffer mechanism has been solved.)

1. A petroleum and petrochemical valve with a buffer structure comprises a handle (1); the method is characterized in that: the bottom of handle (1) is rotated and is connected with valve body (2), the left side fixedly connected with of valve body (2) advances oil pipe (3), the right side that advances oil pipe (3) is provided with out oil pipe (4), it is connected with the outer fixed surface on valve body (2) right side to go out the left surface of oil pipe (4), the left side of valve body (2) is provided with adjustment mechanism (5), adjustment mechanism (5) are located the inside of advancing oil pipe (3), the right side that advances oil pipe (3) is provided with control mechanism (6), control mechanism (6) are located the inside of valve body (2), the right side of valve body (2) is provided with non return mechanism (7), non return mechanism (7) are located the inside of going out oil pipe (4).

2. The petrochemical valve with a buffer structure according to claim 1, wherein: adjustment mechanism (5) are including adjusting core (10), the right side of adjusting core (10) is provided with toper dog (11), the surface of toper dog (11) and the interior fixed surface who advances oil pipe (3) are connected, it has decompression storehouse (12) to open in the wall of advancing oil pipe (3), the interior fixed surface in decompression storehouse (12) is connected with speed reduction ring (13), speed reduction ring (13) are the arc along the cross-section of decompression storehouse (12) internal surface and arrange.

3. The petrochemical valve with a buffer structure according to claim 2, wherein: the adjusting core (10) comprises a limiting rod (14), two ends of the limiting rod (14) are rotatably connected with the inner surface of the oil inlet pipe (3), the outer surface of the middle part of the limiting rod (14) is movably connected with a sliding rod (15), the outer surface of the right end of the sliding rod (15) is connected with a conical head (16) in a sliding way, the outer surface of the conical head (16) is in sliding connection with the inner surface of the conical stop block (11), the outer surface of the left side of the conical head (16) is fixedly connected with a pull rod (17), the pull rod (17) is positioned outside the sliding rod (15), a lantern ring (18) is fixedly connected at the left end of the pull rod (17), the inner surface of the lantern ring (18) is connected with the outer surface of the slide rod (15) in a sliding way, an extension spring (19) is fixedly connected with the outer surface of the left side of the lantern ring (18), the left end of the extension spring (19) is fixedly connected with the outer surface of the limiting rod (14).

4. The petrochemical valve with a buffer structure according to claim 1, wherein: the control mechanism (6) comprises a valve core (20), the bottom end of the valve core (20) is rotatably connected with the inner surface of the valve body (2), the top end of the valve core (20) is fixedly connected with the lower surface of the handle (1), a valve ball (21) is fixedly connected with the outer surface of the valve core (20), the outer surface of the valve ball (21) is rotatably connected with the inner surface of the valve body (2), a through groove (22) is formed in the wall of the valve ball (21), a sealing mechanism (23) is arranged inside the through groove (22), and the sealing mechanism (23) is symmetrically arranged on two sides of the valve core (20).

5. The petrochemical valve with a buffering structure according to claim 4, wherein: sealing mechanism (23) includes telescopic link (24), the right-hand member of telescopic link (24) is connected with the fixed surface of case (20), the surface swing joint of telescopic link (24) has compression spring (25), the left side of compression spring (25) is provided with folding rod (26), the bottom and the left surface of telescopic link (24) of folding rod (26) rotate and are connected, the top and the internal surface of valve ball (21) of folding rod (26) rotate and are connected, the left end fixedly connected with of telescopic link (24) seals up pad (27), the left fixed surface of sealed pad (27) is connected with bulb (28), the surface of bulb (28) and the internal surface sliding connection of valve ball (21).

6. The petrochemical valve with a buffer structure according to claim 1, wherein: check mechanism (7) are including check board (30), the surface of check board (30) is connected with the internal surface rotation of producing oil pipe (4), fixedly connected with shell fragment (31) in the wall of check board (30), the internal surface fixedly connected with cushion collar (32) of producing oil pipe (4), cushion collar (32) are located the right side of check board (30), the internal surface rotation of cushion collar (32) is connected with connecting rod (33), the bottom fixedly connected with floater (34) of connecting rod (33), the surface of floater (34) contacts with the internal surface of cushion collar (32).

Technical Field

The invention belongs to the field of valves, and particularly relates to a petroleum and petrochemical valve with a buffer structure.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like.

However, the fluid inside the valve can generate huge impact on the valve and the pipeline at the opening and closing moments of the valve, and the impact force generated by high-density and high-viscosity oil is larger in the modern petroleum and petrochemical transportation process, and due to the lack of a buffer device, the high-pressure and high-speed oil can cause overload damage to the valve.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a petrochemical valve with a buffer structure, which solves the problem that when the traditional petrochemical valve is transported, petroleum in a pipeline impacts a valve body and a pipeline due to the opening and closing of the valve, and the valve is damaged by overlarge impact force

(II) technical scheme

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a petroleum and petrochemical valve with a buffer structure, which comprises a handle; the bottom of handle is rotated and is connected with the valve body, the left side fixedly connected with of valve body advances oil pipe, the right side that advances oil pipe is provided with out oil pipe, go out the outer fixed surface on oil pipe left and the outer fixed surface on valve body right side and be connected, the left side of valve body is provided with adjustment mechanism, adjustment mechanism is located the inside of advancing oil pipe, the right side that advances oil pipe is provided with control mechanism, control mechanism is located the inside of valve body, the right side of valve body is provided with non return mechanism, non return mechanism is located the inside of going out oil pipe.

The adjusting mechanism comprises an adjusting core, a conical check block is arranged on the right side of the adjusting core, the outer surface of the conical check block is fixedly connected with the inner surface of the oil inlet pipe, a pressure reducing bin is arranged in the wall of the oil inlet pipe, a speed reducing ring is fixedly connected with the inner surface of the pressure reducing bin, and the speed reducing ring is arranged in an arc shape along the section of the inner surface of the pressure reducing bin.

The adjusting core includes the gag lever post, the both ends of gag lever post are connected with the interior surface rotation who advances oil pipe, the surface swing joint at gag lever post middle part has the slide bar, the surface sliding connection of slide bar right-hand member has the conical head, the surface of conical head and the interior surface sliding connection of toper dog, the left fixed surface of conical head is connected with the pull rod, the pull rod is located the outside of slide bar, the left end fixedly connected with lantern ring of pull rod, the internal surface of the lantern ring and the surface sliding connection of slide bar, the left fixed surface of the lantern ring is connected with extension spring, extension spring's left end and gag lever post's fixed surface are connected.

The control mechanism comprises a valve core, the bottom end of the valve core is rotatably connected with the inner surface of the valve body, the top end of the valve core is fixedly connected with the lower surface of the handle, a valve ball is fixedly connected with the outer surface of the valve core, the outer surface of the valve ball is rotatably connected with the inner surface of the valve body, a through groove is formed in the wall of the valve ball, a sealing mechanism is arranged inside the through groove, and the sealing mechanism is symmetrically arranged on two sides of the valve core.

The sealing mechanism comprises a telescopic rod, the right end of the telescopic rod is fixedly connected with the outer surface of the valve core, a compression spring is movably connected to the outer surface of the telescopic rod, a folding rod is arranged on the left side of the compression spring, the bottom end of the folding rod is rotatably connected with the outer surface of the left side of the telescopic rod, the top end of the folding rod is rotatably connected with the inner surface of the valve ball, a sealing gasket is fixedly connected to the left end of the telescopic rod, a ball head is fixedly connected to the outer surface of the left side of the sealing gasket, and the outer surface of the ball head is slidably connected with the inner surface of the valve ball.

The check mechanism comprises a check plate, the outer surface of the check plate is connected with the inner surface of the oil outlet pipe in a rotating mode, the wall of the check plate is fixedly connected with an elastic sheet, the inner surface of the oil outlet pipe is fixedly connected with a buffer sleeve, the buffer sleeve is located on the right side of the check plate, the inner surface of the buffer sleeve is connected with a connecting rod in a rotating mode, the bottom end of the connecting rod is fixedly connected with a floating ball, and the outer surface of the floating ball is in contact with the inner surface of the buffer sleeve.

The invention has the following beneficial effects:

1. according to the invention, through the arrangement of the control mechanism, when the handle rotates, the valve core rotates the valve ball by ninety degrees, the inner surface of the valve body is separated from the ball head, the ball head extends out under the action of the compression spring, the through groove is opened, oil flows into the through groove from the adjusting mechanism, and high-pressure oil flows along a certain radian from the outer surface of the ball head due to the arc-shaped outer surface of the ball head, so that the valve ball is prevented from being directly impacted, when the pressure and the speed of the external oil exceed the safety threshold, the ball head on one side of the oil inlet pipe retracts into the valve ball under the action of the pressure, the through groove is closed, the handle is rotated reversely, the valve body is completely closed, the oil outlet pipe stops supplying oil, and the problem that the internal part of the traditional valve is easily subjected to overload impact to cause damage is solved.

2. The invention arranges the adjusting mechanism, when the control mechanism is opened, the oil in the adjusting mechanism flows, the conical head and the conical stop block are separated under the action of fluid impact, the larger the opening and closing angle of the control mechanism is, the larger the separation degree is, when the control mechanism is completely opened, the right end of the sliding rod is propped against the outer surface of the left side of the ball head, the oil flowing into the adjusting mechanism is reduced in impact on the control mechanism under the pressure reducing action of the pressure reducing bin and the speed reducing ring as well as the conical stop block, when the oil flow rate in the adjusting mechanism is overlarge, the limiting rod deflects rightwards, the extension spring pulls the spring to slide leftwards, the conical head moves leftwards, the gap between the conical head and the conical stop block is reduced, the sliding rod pushes the ball head rightwards under the pushing of the limiting rod, the control mechanism is closed, the oil inlet amount at the left side of the control mechanism is reduced, and the problem that the oil pressure and the flow rate at the oil inlet end of the traditional oil valve can not be adjusted and buffered is solved, easily damage the valve.

3. According to the invention, by arranging the non-return mechanism, when the adjusting mechanism and the control mechanism are closed, the pressure at the oil inlet end suddenly drops, the reverse backflow of oil under the water hammer effect is easily generated in the oil outlet pipe, the floating ball loses buoyancy and moves clockwise around the connecting rod under the action of reverse impact force and gravity, the inner surface of the buffer sleeve is blocked by the outer surface of the floating ball, the non-return plate is closed reversely, the elastic sheet contracts, the two ends in the oil outlet pipe are closed, the valve is protected in a multilayer manner, the valve is prevented from being damaged by the water hammer effect, and the two sides of the control mechanism are always protected by matching with the adjusting mechanism no matter how the oil in the control mechanism flows, so that the problem that the two sides of the traditional valve are lack of the buffer mechanism is solved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the adjustment mechanism of the present invention;

FIG. 4 is a schematic view of the construction of the conditioning core of the present invention;

FIG. 5 is a schematic structural view of the control mechanism of the present invention;

FIG. 6 is a schematic structural view of the sealing mechanism of the present invention;

fig. 7 is a schematic view of the check mechanism of the present invention.

In the figure: the valve comprises a handle 1, a valve body 2, an oil inlet pipe 3, an oil outlet pipe 4, an adjusting mechanism 5, a control mechanism 6, a check mechanism 7, an adjusting core 10, a conical stop 11, a pressure reduction bin 12, a speed reduction ring 13, a limiting rod 14, a sliding rod 15, a conical head 16, a pull rod 17, a lantern ring 18, an extension spring 19, a valve core 20, a valve ball 21, a through groove 22, a sealing mechanism 23, a telescopic rod 24, a compression spring 25, a folding rod 26, a sealing gasket 27, a ball head 28, a check plate 30, an elastic sheet 31, a buffer sleeve 32, a connecting rod 33 and a floating ball 34.

Detailed Description

A petrochemical valve having a buffer structure according to an embodiment of the present invention will be described below with reference to fig. 1 to 7.

As shown in fig. 1 to 7, the petrochemical valve with a buffer structure according to the present invention includes a handle 1; the bottom of handle 1 is rotated and is connected with valve body 2, the left side fixedly connected with of valve body 2 advances oil pipe 3, the right side that advances oil pipe 3 is provided with out oil pipe 4, the outer fixed surface that goes out oil pipe 4 left surface and valve body 2 right side is connected, the left side of valve body 2 is provided with adjustment mechanism 5, adjustment mechanism 5 is located the inside of advancing oil pipe 3, the right side that advances oil pipe 3 is provided with control mechanism 6, control mechanism 6 is located the inside of valve body 2, the right side of valve body 2 is provided with non return mechanism 7, non return mechanism 7 is located the inside of going out oil pipe 4.

The adjusting mechanism 5 comprises an adjusting core 10, a conical stop 11 is arranged on the right side of the adjusting core 10, the outer surface of the conical stop 11 is fixedly connected with the inner surface of the oil inlet pipe 3, a pressure reducing bin 12 is arranged in the wall of the oil inlet pipe 3, a speed reducing ring 13 is fixedly connected with the inner surface of the pressure reducing bin 12, the speed reducing ring 13 is arranged in an arc shape along the section of the inner surface of the pressure reducing bin 12, by arranging the adjusting mechanism 5, when the control mechanism 6 is opened, oil in the adjusting mechanism 5 flows, the conical head 16 and the conical stop 11 are separated under the action of fluid impact, the larger the opening and closing angle of the control mechanism 6 is, the larger the separation degree is, when the control mechanism 6 is completely opened, the right end of the sliding rod 15 abuts against the outer surface on the left side of the spherical head 28, the oil flowing into the adjusting mechanism 5 is reduced in the pressure reducing bin 12 and under the speed reducing action of the speed reducing ring 13 and the conical stop 11, when the oil flow rate in the adjusting mechanism 5 is too high, the limiting rod 14 deflects rightwards, the extension spring 19 pulls the spring 18 to slide leftwards, the conical head 16 moves leftwards, the gap between the conical head 16 and the conical stop block 11 is reduced, the sliding rod 15 pushes the ball head 28 rightwards under the pushing of the limiting rod 14, the control mechanism 6 is closed, the oil inlet amount on the left side of the control mechanism 6 is reduced, and the problems that the oil pressure and the flow rate at the oil inlet end of the traditional oil valve cannot be adjusted and buffered, and the valve is easily damaged are solved.

The adjusting core 10 comprises a limiting rod 14, two ends of the limiting rod 14 are connected with the inner surface of the oil inlet pipe 3 in a rotating mode, the outer surface of the middle of the limiting rod 14 is movably connected with a sliding rod 15, the outer surface of the right end of the sliding rod 15 is connected with a conical head 16 in a sliding mode, the outer surface of the conical head 16 is connected with the inner surface of a conical stop block 11 in a sliding mode, the outer surface of the left side of the conical head 16 is fixedly connected with a pull rod 17, the pull rod 17 is located outside the sliding rod 15, the left end of the pull rod 17 is fixedly connected with a lantern ring 18, the inner surface of the lantern ring 18 is connected with the outer surface of the sliding rod 15 in a sliding mode, the outer surface of the left side of the lantern ring 18 is fixedly connected with an extension spring 19, and the left end of the extension spring 19 is fixedly connected with the outer surface of the limiting rod 14.

The control mechanism 6 comprises a valve core 20, the bottom end of the valve core 20 is rotatably connected with the inner surface of the valve body 2, the top end of the valve core 20 is fixedly connected with the lower surface of the handle 1, the outer surface of the valve core 20 is fixedly connected with a valve ball 21, the outer surface of the valve ball 21 is rotatably connected with the inner surface of the valve body 2, a through groove 22 is formed in the wall of the valve ball 21, a sealing mechanism 23 is arranged inside the through groove 22, the sealing mechanism 23 is symmetrically arranged on two sides of the valve core 20, through the arrangement of the control mechanism 6, when the handle 1 rotates, the valve core 20 rotates the valve ball 21 by ninety degrees, the inner surface of the valve body 2 is separated from a ball head 28, the ball head 28 extends out under the action of a compression spring 25, the through groove 22 is opened, oil flows into the through groove 22 from the adjusting mechanism 5, because the outer surface of the ball head 28 is arc-shaped, high-pressure oil flows along a certain radian from the outer surface of the ball head 28, direct impact on the valve ball 21 is avoided, and when the pressure and the speed of the external oil exceed the safety threshold value, the bulb 28 of advancing oil pipe 3 one side retracts the inside of valve ball 21 under the pressure effect, and logical groove 22 closes, and the antiport handle 1, valve body 2 thoroughly close, and oil outlet pipe 4 stops the fuel feeding, has solved the inside easy overload impact of traditional valve, causes the problem of damage.

Sealing mechanism 23 includes telescopic link 24, the right-hand member of telescopic link 24 is connected with the external fixed surface of case 20, the surface swing joint of telescopic link 24 has compression spring 25, compression spring 25's left side is provided with folding rod 26, folding rod 26's bottom is connected with the left surface rotation of telescopic link 24, folding rod 26's top is connected with the internal surface rotation of valve ball 21, telescopic link 24's left end fixedly connected with seals up 27, the left external fixed surface of sealed pad 27 is connected with bulb 28, the surface of bulb 28 and the internal surface sliding connection of valve ball 21.

The check mechanism 7 comprises a check plate 30, the outer surface of the check plate 30 is rotatably connected with the inner surface of the oil outlet pipe 4, an elastic sheet 31 is fixedly connected in the wall of the check plate 30, a buffer sleeve 32 is fixedly connected with the inner surface of the oil outlet pipe 4, the buffer sleeve 32 is positioned at the right side of the check plate 30, a connecting rod 33 is rotatably connected with the inner surface of the buffer sleeve 32, a floating ball 34 is fixedly connected at the bottom end of the connecting rod 33, the outer surface of the floating ball 34 is contacted with the inner surface of the buffer sleeve 32, by arranging the check mechanism 7, when the adjusting mechanism 5 and the control mechanism 6 are closed, the oil backflow with water hammer effect is very easy to occur in the oil outlet pipe 4 due to sudden pressure drop at the oil inlet end, the floating ball 34 loses buoyancy and does clockwise movement with the connecting rod 33 as the center under the action of reverse impact force and gravity, the inner surface of the buffer sleeve 32 is blocked by the outer surface of the floating ball 34, and the check plate 30 is closed reversely, the shell fragment 31 contracts, and the inside both ends of play oil pipe are closed, and the multilayer protection prevents that water hammer effect from damaging the valve, and cooperation adjustment mechanism 5 no matter how inside oil flows, 6 both sides of control mechanism receive the protection all the time, have solved the problem that traditional valve both sides lack buffer gear.

The specific working process is as follows:

during operation, when handle 1 rotates, case 20 rotates valve ball 21 ninety degrees, the internal surface and the bulb 28 separation of valve body 2, bulb 28 stretches out under compression spring 25's effect, logical groove 22 opens, oil flows in logical groove 22 from adjustment mechanism 5, because the surface of bulb 28 is circular-arcly, high-pressure oil flows along certain radian from the surface of bulb 28, avoid direct impact valve ball 21, when the pressure and the speed of external oil surpass safe threshold, the inside of bulb 28 withdrawal valve ball 21 under the pressure effect of oil inlet pipe 3 one side, logical groove 22 closes, counter-rotating handle 1, valve body 2 thoroughly closes, go out oil pipe 4 and stop the fuel feeding.

When the control mechanism 6 is opened, oil in the adjusting mechanism 5 flows, the conical head 16 and the conical stop 11 are separated under the action of fluid impact, the larger the opening and closing angle of the control mechanism 6 is, the larger the separation degree is, when the control mechanism 6 is completely opened, the right end of the sliding rod 15 abuts against the outer surface of the left side of the ball head 28, the impact of the oil flowing into the adjusting mechanism 5 on the control mechanism 6 is reduced under the pressure reduction of the pressure reduction bin 12 and the speed reduction of the speed reduction ring 13 and the conical stop 11, when the flow rate of the oil in the adjusting mechanism 5 is too large, the limiting rod 14 deflects rightwards, the extension spring 19 pulls the spring 18 to slide leftwards, the conical head 16 moves leftwards, the gap between the conical head 16 and the conical stop 11 is reduced, the sliding rod 15 pushes the ball head 28 rightwards under the pushing of the limiting rod 14, the control mechanism 6 is closed, and the oil inlet amount on the left side of the control mechanism 6 is reduced.

When the adjusting mechanism 5 and the control mechanism 6 are both closed, because the pressure at the oil inlet end suddenly drops, the reverse backflow of water hammer effect oil easily occurs inside the oil outlet pipe 4, the floating ball 34 makes clockwise motion with the connecting rod 33 as the center of a circle under the action of reverse impact force and gravity due to the loss of buoyancy, the inner surface of the buffer sleeve 32 is blocked by the outer surface of the floating ball 34, the check plate 30 is reversely closed, the elastic sheet 31 contracts, the two ends inside the oil outlet pipe are closed, the valve is protected in a multilayer manner, the water hammer effect is prevented from being damaged, the adjusting mechanism 5 is matched, and the two sides of the control mechanism 6 are always protected no matter how the internal oil flows.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.