Pressure sensing type backflushing valve for mud separation backflushing system

Abstract

The utility model discloses a pressure sensing type backflushing valve for a mud separation backflushing system, which belongs to the technical field of control valves and comprises a valve body, a valve cover is fixedly mounted on the upper surface of the valve body through bolts, an input pipe and an output pipe are respectively mounted on the outer surface of the valve body in a communicated manner, a knocking component is arranged on the inner wall of the valve cover, and the knocking component is arranged on the inner wall of the valve cover. A collecting assembly is arranged on the inner wall of the bottom face of the valve body. According to the utility model, by arranging the knocking component, the backflushing system is automatically started when the pipeline is blocked, so that the condition that the pipeline is damaged or exploded due to blockage can be effectively avoided, and meanwhile, the backflushing silt flushes up slag at the bottom of the slurry storage tank, so that the slurry is more uniform, and the probability of later blockage is reduced; after the backflushing valve is used, silt in the valve body is automatically cleaned and collected, the situation that the backflushing valve is damaged due to the fact that the backflushing valve is blocked by too much silt in the backflushing valve is avoided, corrosion of the silt to the inner wall of the backflushing valve can be reduced, and the service life of the backflushing valve is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to control valve technical field, especially relate to a pressure sensing formula backflush valve for mud separation backflush system. BACKGROUND

[0002] Mud is the semi colloid suspension that the tiny particle of clay disperses in water and mixes with water, in colloid chemistry, the clay of solid is called dispersed phase or solid phase, water is called medium or liquid phase, if solid phase disperses into molecule, ion, solid phase and liquid phase do not have phase interface existence even body, called true solution, such as the solution that salt dissolves in water, if the particle dispersed in liquid phase is composed of many molecules, although the particle is very tiny, but there is phase interface existence, such as glue, in order to extract the silt in mud, the mud will be separated.

[0003] The prior art discloses a valve, which comprises a valve body formed with a material channel, a sealing disc, an upper valve seat, a lower valve seat and a driving mechanism, the upper valve seat and the lower valve seat are arranged in the valve body and block the material channel, the sealing disc is clamped between the upper valve seat and the lower valve seat rotatably about its own axis, the sealing disc is formed with an upper end face and a lower end face which are tightly matched with the bottom surface of the upper valve seat and the top surface of the lower valve seat, the upper valve seat and the lower valve seat are respectively formed with oppositely arranged first through holes, the sealing disc is formed with a second through hole which can be aligned with the first through holes, the driving mechanism can drive the sealing disc to rotate so as to adjust the relative position of the first through holes and the second through hole, thereby controlling the flow and switching of the valve, the upper valve seat is arranged in the valve body in an up-and-down movable manner, and an elastic upper pressing ring is arranged between the valve body and the upper valve seat, the elastic upper pressing ring applies an elastic force downward to the upper valve seat, so that the bottom surface of the upper valve seat is tightly matched with the upper end face of the sealing disc. Mud will be blocked during separation, in order to avoid that the pipe pressure is too large due to long-term blocking of the mud, a backflush system is arranged, so that the mud flows back to the slurry storage tank when the pressure is too large, thereby impacting the slag, but mud sand is easy to adhere to the inner wall of the backflush valve during use, with the increase of the use time, the inner part of the backflush valve is abraded, thereby reducing the sealing effect of the backflush valve, and therefore the pressure sensing formula backflush valve for mud separation backflush system is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a pressure sensing formula backflush valve for mud separation backflush system, solve the problem that current backflush valve is easy to be abraded by silt and lead to the decline of sealing effect.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a pressure sensing formula backflush valve for mud separation backflush system, including the valve body, the upper surface of valve body is fixedly installed with valve cover through bolt, the outer surface of valve body is connected with input pipe and output pipe respectively, be provided with knock assembly on the inner wall of valve cover, be provided with collection subassembly on the bottom inner wall of valve body, the shell cavity inner wall of input pipe and output pipe is all provided with sealing assembly,

[0006] Knock assembly includes rotary lever, one end of rotary lever is rotatably connected with the inner wall of the top surface of valve cover, the outer surface of rotary lever is fixedly installed with transmission gear, the other end of rotary lever is fixedly installed with rotary disc.

[0007] As further description of the above technical scheme:

[0008] The lower surface of rotary disc is rotatably installed with knock rod through pivot, the outer surface of knock rod is slidably installed with limit sleeve, one end of limit sleeve is fixedly connected with the inner side wall of valve cover.

[0009] As further description of the above technical scheme:

[0010] The upper surface of valve cover is rotatably installed with handle, one end of handle extends to the inside of valve cover and is fixedly installed with connecting rod, the outer surface of connecting rod is fixedly installed with drive gear, the drive gear is meshingly connected with transmission gear, and the diameter of drive gear is greater than that of transmission gear.

[0011] As further description of the above technical scheme:

[0012] One end of connecting rod extends to the inside of valve body, one end of connecting rod is fixedly installed with support rod, the outer surface of support rod is fixedly installed with baffle, and the outer surface of baffle is attached to the inner side wall of valve body.

[0013] As further description of the above technical scheme:

[0014] The collection assembly includes stroke groove and sealing cover, the stroke groove is arranged on the bottom inner wall of valve body, the inner wall of stroke groove is provided with threaded port, the outer surface of threaded port is threadedly installed with collection box.

[0015] As further description of the above technical scheme:

[0016] The upper surface of sealing cover is fixedly connected with the lower surface of baffle, the outer surface of sealing cover is slidably connected with the inner wall of stroke groove, and the sealing cover is adapted in size to stroke groove and threaded port.

[0017] As further description of the above technical scheme:

[0018] The sealing assembly comprises a movable plate, a connecting spring is fixedly installed on the side wall of the movable plate, one end of the connecting spring is fixedly connected with the inner wall of the shell cavity of the input pipe, and an extrusion rod and a jacking rod are respectively fixedly installed on the other side wall of the movable plate.

[0019] As a further description of the above technical solution:

[0020] One end of the extrusion rod is fixedly installed with an extrusion ring, the extrusion ring extends to the outside of the input pipe, one end of the jacking rod is fixedly installed with a sealing ring, and the sealing ring extends to the outside of the input pipe.

[0021] As a further description of the above technical solution:

[0022] A positioning rod is fixedly installed on the inner wall of the movable plate, one end of the positioning rod extends to the outside of the movable plate, and an installation plate is rotatably installed at one end of the positioning rod.

[0023] As a further description of the above technical solution:

[0024] One end of the installation plate is fixedly connected with the inner wall of the shell cavity of the input pipe, the extrusion ring and the sealing ring are made of rubber material, and a pressure sensor is fixedly installed on the inner wall of the input pipe.

[0025] As a further description of the above technical solution:

[0026] 1. The utility model discloses a knock component is set up, along with the conveying of slurry, the input pipe can be blocked, when pressure sensor feels the pressure in the input pipe is too big, will automatically control the knob to rotate, now the knob will drive the support rod to rotate through the connecting rod, now the support rod will drive the baffle to rotate, when the baffle is perpendicular with the pipe orifice of input pipe and output pipe and is in the completely open state, now the slurry will flow to the slurry storage tank in the output pipe, and the residue that sinks in the slurry storage tank is washed up, thereby avoid the siltation of slurry storage tank because of long -term use and lead to the overflow, after the back flushing, the back flushing valve will be closed, in the process of closing, the connecting rod will drive the drive gear to rotate, under the transmission of transmission gear, the rotating rod will rotate on the top surface inner wall of valve cover, the rotating rod will drive the rotary disc to rotate, now the knock rod is under the limiting of the limiting sleeve and knocks the inboard wall of valve cover, and the valve body is driven to vibrate synchronously by the valve cover that is knocked, and the silt adhered on the inboard wall of valve body is flowed into the collecting box through the thread port, when the pipeline is blocked, the back flushing system is opened automatically, can effectively avoid the pipeline damage or burst due to the blockage, and the residue at the bottom of slurry storage tank is washed up by the silt of back flushing, makes the slurry more uniform, reduces the probability of later blockage, after the use of back flushing valve, the silt in the valve body is cleaned and collected automatically, avoids the silt in the back flushing valve too much and is blocked, thereby causes the back flushing valve damage condition, and can also reduce the corrosiveness of silt to the inner wall of back flushing valve, prolongs the service life of back flushing valve.

[0027] 2. The utility model discloses a collection subassembly is set up, when next time back flushing valve opens, the baffle will drive the sealing cover to move in the stroke groove, and the thread port is sealed, thereby can avoid the silt in the collecting box when flowing with the slurry, when the silt in the collecting box reaches a certain amount, under the action of screw, the collecting box is taken down and is cleaned, and the silt in the back flushing valve is collected, is convenient for later unified processing, can also avoid the silt adhesion on the inner surface of back flushing valve, and the abrasion of baffle in the valve body is reduced, and the sealing property of back flushing valve is reduced.

[0028] 3. The utility model discloses a sealing assembly is set up, and the input pipe is connected with the output end of residue slurry pump, and the output pipe is communicated with the lateral wall of slurry storage tank, and when the input pipe and output pipe are connected, the extrusion ring will be extruded, thereby moving to the inside of the shell cavity of input pipe and output pipe, along with the movement of extrusion ring, the one end of movable plate will be extruded through the extrusion rod, now the other end of movable plate that is extruded is under the limiting of positioning rod and mounting plate and will be cocked, thereby under the action of jacks, the sealing ring moves to the outside of input pipe and output pipe, because extrusion ring and sealing ring all adopt rubber material, therefore can seal the connection, under the double sealing of extrusion ring and sealing ring, the sealing property of back flushing valve connection is improved, effectively avoid the leakage of connection in the back flushing process, improve the stability in the use process of back flushing valve. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of a pressure-sensing backflushing valve used in a mud separation backflushing system.

[0030] Figure 2 This is a schematic diagram of the internal structure of a pressure-sensing backflushing valve used in a mud separation backflushing system.

[0031] Figure 3 This is an exploded structural diagram of the knocking component in a pressure-sensing backflushing valve for a mud separation backflushing system.

[0032] Figure 4 This is an exploded structural diagram of the collection component in a pressure-sensing backflushing valve for a mud separation backflushing system.

[0033] Figure 5 For a pressure-sensing backflushing valve used in a mud separation backflushing system Figure 2 A magnified structural diagram of point A in the middle.

[0034] Figure 6 This is a partial three-dimensional structural diagram of the sealing component in a pressure-sensing backflushing valve for a mud separation backflushing system.

[0035] Figure 7 For a pressure-sensing backflushing valve used in a mud separation backflushing system Figure 6 A magnified structural diagram at point B in the middle.

[0036] Legend:

[0037] 1. Valve body; 2. Valve cover; 3. Input pipe; 4. Output pipe; 5. Pressure sensor; 6. Impact assembly; 61. Rotating rod; 62. Transmission gear; 63. Rotating disc; 64. Impact rod; 65. Limit sleeve; 7. Collection assembly; 71. Stroke groove; 72. Discharge port; 73. Collection box; 74. Sealing cover; 8. Baffle; 9. Connecting rod; 10. Turning handle; 11. Drive gear; 12. Support rod; 13. Sealing assembly; 131. Movable plate; 132. Connecting spring; 133. Extrusion rod; 134. Extrusion ring; 135. Top rod; 136. Sealing ring; 137. Mounting plate; 138. Positioning rod. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0039] Please refer to Figures 1-7 The utility model provides a technical scheme: a pressure sensing type backflush valve for mud separation backflush system, including the valve body 1, the upper surface of valve body 1 is fixedly installed with valve bonnet 2 through bolt, the outer surface of valve body 1 is connected with input pipe 3 and output pipe 4 respectively, the inner wall of valve bonnet 2 is provided with knock assembly 6, the bottom inner wall of valve body 1 is provided with collection assembly 7, the shell cavity inner wall of input pipe 3 and output pipe 4 is provided with sealing assembly 13 all;

[0040] Knock assembly 6 includes rotary lever 61, one end of rotary lever 61 is rotatably connected with the inner wall of the top surface of valve bonnet 2, the outer surface of rotary lever 61 is fixedly installed with transmission gear 62, the other end of rotary lever 61 is fixedly installed with rotary disc 63, the lower surface of rotary disc 63 is rotatably installed with knock lever 64 through rotating shaft, the outer surface of knock lever 64 is slidably installed with limiting sleeve 65, one end of limiting sleeve 65 is fixedly connected with the inner side wall of valve bonnet 2, the upper surface of valve bonnet 2 is rotatably installed with handle 10, one end of handle 10 extends to the inside of valve bonnet 2 and is fixedly installed with connecting rod 9, the outer surface of connecting rod 9 is fixedly installed with driving gear 11, driving gear 11 is rotatably connected with transmission gear 62, the diameter of driving gear 11 is greater than transmission gear 62, one end of connecting rod 9 extends to the inside of valve body 1, one end of connecting rod 9 is fixedly installed with support rod 12, the outer surface of support rod 12 is fixedly installed with baffle 8, the outer surface of baffle 8 is attached with the inner side wall of valve body 1.

[0041] Specific embodiments are: with the conveying of mud, input pipe 3 may be blocked, when pressure sensor 5 senses that the pressure in input pipe 3 is too large, it will automatically control handle 10 to rotate, at this time handle 10 will drive support rod 12 to rotate through connecting rod 9, at this time support rod 12 will drive baffle 8 to rotate, when baffle 8 is perpendicular to the pipe orifice of input pipe 3 and output pipe 4, it is in fully open state, at this time mud will flow into storage tank through output pipe 4, and the residue on the bottom of storage tank will be washed up, thereby avoiding the accumulation of storage tank due to long-term use, backflush valve will be closed after backflush, in the process of closing, connecting rod 9 will drive driving gear 11 to rotate, under the transmission of transmission gear 62, rotary lever 61 will rotate on the inner wall of the top surface of valve bonnet 2, rotary lever 61 will drive rotary disc 63 to rotate, at this time knock lever 64 will knock the inner side wall of valve bonnet 2 under the limitation of limiting sleeve 65, the valve body 1 will be vibrated synchronously under the knocking of valve bonnet 2, the mud and sand adhered to the inner wall of valve body 1 will flow into the collection box 73 through the threaded opening.

[0042] The collecting assembly 7 comprises a stroke groove 71 and a sealing cover 74, the stroke groove 71 is arranged on the inner wall of the bottom surface of the valve body 1, a threaded port is arranged on the inner wall of the stroke groove 71, the collecting box 73 is threadedly installed on the outer surface of the threaded port, the upper surface of the sealing cover 74 is fixedly connected with the lower surface of the baffle 8, the outer surface of the sealing cover 74 is slidably connected with the inner wall of the stroke groove 71, and the sealing cover 74 is sized to fit the stroke groove 71 and the threaded port.

[0043] Specific embodiments are that, when the next rebound valve is opened, the baffle 8 drives the sealing cover 74 to move in the stroke groove 71, and the threaded port is sealed, so that the mud in the flowing process can avoid taking away the silt in the collecting box 73, and when the silt in the collecting box 73 reaches a certain amount, the collecting box 73 is removed for cleaning under the action of the thread.

[0044] The sealing assembly 13 comprises a movable plate 131, a connecting spring 132 is fixedly installed on the side wall of the movable plate 131, one end of the connecting spring 132 is fixedly connected with the inner wall of the shell cavity of the input pipe 3, an extrusion rod 133 and a jacking rod 135 are respectively fixedly installed on the other side wall of the movable plate 131, one end of the extrusion rod 133 is fixedly installed with an extrusion ring 134, the extrusion ring 134 extends to the outside of the input pipe 3, one end of the jacking rod 135 is fixedly installed with a sealing ring 136, the sealing ring 136 extends to the outside of the input pipe 3, a positioning rod 138 is fixedly installed on the inner wall of the movable plate 131, one end of the positioning rod 138 extends to the outside of the movable plate 131, the positioning rod 138 is rotatably installed with a mounting plate 137 at one end, one end of the mounting plate 137 is fixedly connected with the inner wall of the shell cavity of the input pipe 3, the extrusion ring 134 and the sealing ring 136 are made of rubber material, and a pressure sensor 5 is fixedly installed on the inner wall of the input pipe 3.

[0045] Specific embodiments are that, the input pipe 3 is connected with the output end of the slurry pump, the output pipe 4 is in communication with the side wall of the slurry storage tank, when the input pipe 3 and the output pipe 4 are connected, the extrusion ring 134 is extruded, so as to move to the inside of the shell cavities of the input pipe 3 and the output pipe 4, with the movement of the extrusion ring 134, the extrusion rod 133 extrudes one end of the movable plate 131, at this time, the other end of the movable plate 131 which is extruded is lifted up under the limiting of the positioning rod 138 and the mounting plate 137, so as to move the sealing ring 136 to the outside of the input pipe 3 and the output pipe 4 under the action of the jacking rod 135, since the extrusion ring 134 and the sealing ring 136 are made of rubber material, the connection is sealed.

[0046] Working principle: the input pipe 3 is connected with the output end of the slurry pump, the output pipe 4 is communicated with the side wall of the slurry storage tank, when the input pipe 3 is connected with the output pipe 4, the extrusion ring 134 will be extruded, so as to move to the inside of the shell cavity of the input pipe 3 and the output pipe 4, with the movement of the extrusion ring 134, the extrusion rod 133 will extrude one end of the movable plate 131, at this time, the other end of the movable plate 131 will be lifted under the limiting of the positioning rod 138 and the mounting plate 137, so as to move the sealing ring 136 to the outside of the input pipe 3 and the output pipe 4 under the action of the top rod 135, since the extrusion ring 134 and the sealing ring 136 are made of rubber material, the connection part can be sealed, with the conveying of the slurry, the input pipe 3 may be blocked, when the pressure sensor 5 senses that the pressure in the input pipe 3 is too large, the rotating handle 10 will be automatically controlled to rotate, at this time, the rotating handle 10 will drive the supporting rod 12 to rotate through the connecting rod 9, at this time, the supporting rod 12 will drive the baffle 8 to rotate, when the baffle 8 is perpendicular to the pipe opening of the input pipe 3 and the output pipe 4, it is in the fully open state, at this time, the slurry will flow into the slurry storage tank through the output pipe 4, and the sludge at the bottom of the slurry storage tank will be lifted, so as to avoid the slurry accumulation in the slurry storage tank due to long-term use, after the backflushing is finished, the backflushing valve will be closed, in the process of closing, the connecting rod 9 will drive the driving gear 11 to rotate, under the transmission of the transmission gear 62, the rotating rod 61 will rotate on the top inner wall of the valve cover 2, the rotating rod 61 will drive the rotating disc 63 to rotate, at this time, the knocking rod 64 will knock the inner wall of the valve cover 2 under the limiting of the limiting sleeve 65, the valve cover 2 subjected to the knocking will drive the valve body 1 to vibrate synchronously, the mud and sand adhered to the inner wall of the valve body 1 subjected to the vibration will flow into the collecting box 73 through the threaded opening, when the backflushing valve is opened next time, the baffle 8 will drive the sealing cover 74 to move in the stroke groove 71, and the threaded opening is sealed, so that the mud and sand in the collecting box 73 can be prevented from being taken away by the slurry when flowing, when the amount of mud and sand in the collecting box 73 reaches a certain amount, the collecting box 73 is taken down for cleaning under the action of the screw thread.

[0047] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A pressure-sensing backflushing valve for a mud separation backflushing system, comprising a valve body (1), characterized in that: The valve body (1) has a valve cover (2) fixedly installed on its upper surface by bolts. The outer surface of the valve body (1) is connected to the input pipe (3) and the output pipe (4). The inner wall of the valve cover (2) is provided with a knocking component (6). The inner wall of the bottom surface of the valve body (1) is provided with a collecting component (7). The inner walls of the shell cavities of the input pipe (3) and the output pipe (4) are both provided with sealing components (13). The striking assembly (6) includes a rotating rod (61), one end of which is rotatably connected to the inner wall of the top surface of the valve cover (2), a transmission gear (62) is fixedly installed on the outer surface of the rotating rod (61), and a rotating disk (63) is fixedly installed on the other end of the rotating rod (61).

2. The pressure-sensing backflushing valve for a mud separation backflushing system according to claim 1, characterized in that, A striking rod (64) is rotatably mounted on the lower surface of the rotating disk (63) via a rotating shaft. A limiting sleeve (65) is slidably mounted on the outer surface of the striking rod (64). One end of the limiting sleeve (65) is fixedly connected to the inner wall of the valve cover (2).

3. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 2, characterized in that, A handle (10) is rotatably mounted on the upper surface of the valve cover (2). One end of the handle (10) extends into the interior of the valve cover (2) and is fixedly mounted with a connecting rod (9). A drive gear (11) is fixedly mounted on the outer surface of the connecting rod (9). The drive gear (11) is meshed with the transmission gear (62). The diameter of the drive gear (11) is larger than that of the transmission gear (62).

4. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 3, characterized in that, One end of the connecting rod (9) extends into the interior of the valve body (1), and a support rod (12) is fixedly installed on one end of the connecting rod (9). A baffle (8) is fixedly installed on the outer surface of the support rod (12), and the outer surface of the baffle (8) is in contact with the inner wall of the valve body (1).

5. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 4, characterized in that, The collection assembly (7) includes a travel groove (71) and a sealing cover (74). The travel groove (71) is located on the inner wall of the bottom surface of the valve body (1). A threaded opening is provided on the inner wall of the travel groove (71), and a collection box (73) is threaded onto the outer surface of the threaded opening.

6. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 5, characterized in that, The upper surface of the sealing cover (74) is fixedly connected to the lower surface of the baffle (8), the outer surface of the sealing cover (74) is slidably connected to the inner wall of the travel groove (71), and the sealing cover (74) is adapted to the size of the travel groove (71) and the threaded opening.

7. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 6, characterized in that, The sealing assembly (13) includes a movable plate (131), a connecting spring (132) is fixedly installed on the side wall of the movable plate (131), one end of the connecting spring (132) is fixedly connected to the inner wall of the cavity of the input pipe (3), and a pressing rod (133) and a top rod (135) are fixedly installed on the other side wall of the movable plate (131).

8. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 7, characterized in that, One end of the extrusion rod (133) is fixedly equipped with an extrusion ring (134), which extends to the outside of the input pipe (3). One end of the top rod (135) is fixedly equipped with a sealing ring (136), which extends to the outside of the input pipe (3).

9. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 8, characterized in that, A positioning rod (138) is fixedly installed on the inner wall of the movable plate (131). One end of the positioning rod (138) extends to the outside of the movable plate (131), and an mounting plate (137) is rotatably installed on one end of the positioning rod (138).

10. A pressure-sensing backflushing valve for a mud separation backflushing system according to claim 9, characterized in that, One end of the mounting plate (137) is fixedly connected to the inner wall of the cavity of the input tube (3). The extrusion ring (134) and the sealing ring (136) are both made of rubber. A pressure sensor (5) is fixedly installed on the inner wall of the input tube (3).

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