CN110878568B

CN110878568B - Vacuum mud suction barrel

Info

Publication number: CN110878568B
Application number: CN201811035394.9A
Authority: CN
Inventors: 姜修才; 赵东辉; 夏国发; 王建伟; 陶伟莉; 张蕾; 刘博�; 宁智洲; 逄环斌
Original assignee: China National Petroleum Corp; China Petroleum Pipeline Engineering Corp
Current assignee: China National Petroleum Corp; China Petroleum Pipeline Engineering Corp
Priority date: 2018-09-05
Filing date: 2018-09-05
Publication date: 2021-11-30
Anticipated expiration: 2038-09-05
Also published as: CN110878568A

Abstract

The invention discloses a vacuum mud suction barrel, and belongs to the field of mechanical equipment development. The device comprises: the sludge discharge device comprises a top cover, a barrel, a bottom sludge discharge door, a swing arm support, a sludge discharge door swing arm, a sludge suction pipe, a hoisting lug plate, a vacuum pump joint, a spray head fixing piece and a high-pressure water spray head, wherein the top cover, the barrel and the bottom sludge discharge door form a cavity, the swing arm support is arranged on the outer wall of the barrel, the sludge discharge door swing arm is connected with the bottom sludge discharge door and the swing arm support at two ends respectively, the sludge suction pipe penetrates through the outer wall of the barrel, the hoisting lug plate is arranged at the upper end of the top cover, the vacuum pump joint penetrates through the top cover, and the spray head fixing piece and the high-pressure water spray head are connected with the spray head. According to the invention, the soil around the buried wire pipe is slurried to form a mud-water mixture by jetting water flow through the high-pressure water spray nozzle on the outer wall of the mud suction barrel, meanwhile, the mud suction barrel is externally connected with the vacuum pump, and the vacuum pump performs vacuum pumping operation on the mud suction barrel, so that the mud suction barrel can suck and carry the mud-water mixture around the buried wire pipe, thus functionally replacing an excavator bucket, realizing lossless excavation of the buried wire pipe, being suitable for the buried wire pipe which is inconvenient to apply the bucket for operation, and improving the mechanical equipment level for maintaining the buried wire pipe.

Description

Vacuum mud suction barrel

Technical Field

The invention relates to the field of mechanical equipment development, in particular to a vacuum mud suction barrel.

Background

In the use of buried line pipes such as cables, optical fibers, oil and gas pipelines, when the service life of the buried line pipe reaches a certain value, the line pipe is usually dug out and maintained and reconstructed. Because the buried line pipe is generally long in laying length, the workload of digging out the line pipe is large, and the efficiency is low by adopting a manual digging mode, so that the line pipe is dug out by adopting an excavator in the prior art.

The conventional excavator bucket is easy to damage the pipeline in the excavating process, so a nondestructive excavating mode combining high-pressure water spraying and vacuum suction is developed at present, namely, the high-pressure water is utilized to pulp soil, and a vacuum pump is used for providing negative pressure to suck the muddy water mixture formed by pulping. Therefore, it is necessary to provide a vacuum mud suction bucket as a special mud transporting device developed by the nondestructive excavation method, so as to transport the mud-water mixture instead of a bucket and avoid the damage of the bucket to the buried pipeline.

Disclosure of Invention

The embodiment of the invention provides a vacuum mud suction barrel, which aims to solve the carrying problem of a mud-water mixture in the operation process of a lossless excavation mode. The technical scheme is as follows:

there is provided a vacuum suction dredge apparatus, the apparatus comprising: a base assembly and a water spray assembly;

the basic assembly comprises a top cover, a barrel, a bottom mud discharge door, a mud suction pipe, a swing arm support, a mud discharge door swing arm, a hoisting lug plate, a vacuum pump joint and an anti-overflow valve; the top cover, the cylinder body and the bottom mud discharge door form a cavity; the swing arm support is fixed on the outer wall of the barrel, one end of the swing arm of the mud discharge door is connected with the swing arm support, and the other end of the swing arm of the mud discharge door is connected with the mud discharge door at the bottom; the mud suction pipe penetrates through the barrel and is fixed on the barrel, one end of the mud suction pipe extends into a cavity formed by the top cover, the barrel and the bottom mud discharge door, the other end of the mud suction pipe is arranged outside the barrel, and the pipe orifice of the mud suction pipe faces the ground; the hoisting lug plate is fixed on the top cover; the vacuum pump joint penetrates through the top cover and is fixed on the top cover, and the lower end of the vacuum pump joint extends into a cavity formed by the top cover, the barrel and the bottom mud discharge door; the overflow prevention valve is connected with the lower end of the vacuum pump joint.

The water spray assembly comprises a spray head fixing piece and a high-pressure water spray head; the spray head fixing piece is fixed on the outer wall of the barrel; the high-pressure water spray head is connected with the spray head fixing part, and the water outlet end of the high-pressure water spray head faces the ground.

Optionally, the device further comprises a hydraulic cylinder support, a hydraulic cylinder and a hydraulic outer joint, wherein the hydraulic cylinder support is used for tightly closing the bottom mud discharging door; the hydraulic cylinder support is fixed on the outer wall of the cylinder body; one end of the hydraulic cylinder is connected with the hydraulic cylinder support, the other end of the hydraulic cylinder is connected with the swing arm of the mud discharge door, and the hydraulic outer joint is located on the cylinder barrel of the hydraulic cylinder.

Optionally, the device further comprises a top cap gasket; the top cover sealing gasket is positioned at the joint of the top cover and the vacuum pump joint and used for enhancing the sealing performance of the device.

Optionally, the apparatus further comprises a barrel transition plate; the barrel penetrating transition plate is positioned at the joint of the barrel body and the sludge suction pipe and is used for reinforcing the joint.

Optionally, the device further comprises a suction pipe clamp; the mud suction pipe clamp is located on the outer wall of the barrel and connected with the mud suction pipe, and is used for reducing shaking and vibration of the mud suction pipe in the running process of the device.

Optionally, the apparatus further comprises a bottom door seal; the bottom door sealing strip is positioned on the inner side of the bottom mud discharge door and used for enhancing the sealing performance of the device.

Optionally, the device further comprises an explosion-proof inner sleeve; the anti-explosion inner sleeve covers the inner wall of the cylinder body and is used for preventing sparks from being generated when the inner wall of the cylinder body and sand in the muddy water mixture are subjected to friction impact in the using process of the device.

Optionally, the device further comprises a blast-resistant barrier ring; the anti-explosion retaining ring is positioned at the lower end of the cylinder body, the inner diameter of the anti-explosion retaining ring is not larger than that of the cylinder body, and the anti-explosion retaining ring is used for preventing sparks generated when the cylinder body and sand in the muddy water mixture are in friction impact in the using process of the device and enhancing the sealing performance of the device.

Optionally, the apparatus further comprises an explosion-proof base plate; the explosion-proof bottom plate covers the inner side of the bottom mud discharge door and is used for preventing sparks from being generated when the bottom mud discharge door and sand in the mud-water mixture are in friction impact in the using process of the device.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

according to the embodiment of the invention, the soil around the buried line pipe is slurried to form the mud-water mixture by jetting water flow through the high-pressure water spray head positioned on the outer wall of the mud suction barrel, meanwhile, the mud suction barrel is externally connected with the vacuum pump, and the vacuum pump vacuumizes the mud suction barrel, so that the mud-water mixture around the buried line pipe can be sucked and carried by the mud suction barrel, therefore, an excavator bucket is functionally replaced, the buried line pipe is dug in a lossless manner, the mud suction barrel is suitable for the buried line pipe which is inconvenient to apply the bucket for operation, and the mechanical equipment level for maintaining the buried line pipe is improved.

Drawings

FIG. 1 is a front view of a vacuum mud suction bucket according to an embodiment of the present invention;

FIG. 2 is a side view of a vacuum mud bucket according to an embodiment of the present invention;

FIG. 3 is a top view of a vacuum mud bucket according to an embodiment of the present invention;

fig. 4 is a partial sectional view of a vacuum mud bucket according to an embodiment of the present invention.

Wherein the reference numerals in the drawings are explained as follows:

the device comprises a top cover, a barrel body, a bottom mud discharge door, a swing arm support, a mud discharge door swing arm, a mud suction pipe, a hoisting lug plate, a vacuum pump joint, an overflow prevention valve, a spray nozzle fixing part, a high-pressure water spray nozzle, a hydraulic cylinder support, a hydraulic cylinder, a hydraulic external joint, a top cover sealing gasket, a barrel passing transition plate, a mud suction pipe clamp, a bottom door sealing strip, an explosion-proof inner sleeve, an explosion-proof baffle ring and an explosion-proof bottom plate, wherein the top cover is 1, the barrel body is 2, the bottom mud discharge door is 3, the swing arm support is 4, the mud discharge door swing arm is 5, the hydraulic cylinder is 6, the hydraulic external joint is 14, the top cover sealing gasket is 15, the barrel passing transition plate is 16, the explosion-proof pipe clamp is 17, the bottom door sealing strip is 18, the explosion-proof inner sleeve is 19, the explosion-proof baffle ring is 20, and the explosion-proof bottom plate is 21.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The embodiment of the invention provides a vacuum mud suction barrel, as shown in figures 1, 2 and 3, the device comprises a basic assembly and a water spraying assembly;

the basic components comprise a top cover 1, a barrel 2, a bottom mud discharge door 3, a swing arm support 4, a mud discharge door swing arm 5, a mud suction pipe 6, a hoisting lug plate 7, a vacuum pump joint 8 and an anti-overflow valve 9; the top cover 1, the cylinder 2 and the bottom mud discharging door 3 form a cavity; the swing arm support 4 is fixed on the outer wall of the barrel body 2, one end of a swing arm 5 of the mud discharge door is connected with the swing arm support 4, and the other end of the swing arm 5 of the mud discharge door is connected with the mud discharge door 3 at the bottom; the mud suction pipe 6 penetrates through the barrel 2 and is fixed on the barrel 2, one end of the mud suction pipe 6 extends into a cavity formed by the top cover 1, the barrel 2 and the bottom mud discharge door 3, the other end of the mud suction pipe 6 is arranged on the outer side of the barrel 2, and the pipe orifice faces the ground;

the lifting ear plate 7 is fixed on the top cover 1; the vacuum pump joint 8 penetrates through the top cover 1 and is fixed on the top cover 1, and the lower end of the vacuum pump joint 8 extends into a cavity formed by the top cover 1, the barrel body 2 and the bottom mud discharging door 3; the overflow prevention valve 9 is connected with the lower end of the vacuum pump joint 8.

The water spraying component comprises a spray head fixing part 10 and a high-pressure water spray head 11; the nozzle fixing piece 10 is fixed on the outer wall of the barrel 2; the high-pressure water spray nozzle 11 is connected with the spray nozzle fixing part 10, and the water outlet end of the high-pressure water spray nozzle 11 faces the ground.

Before the vacuum mud suction barrel provided by the embodiment of the invention is used for mud suction operation, the vacuum mud suction barrel is connected with an excavator, a vacuum pump and a high-pressure water pipeline. The device is connected with the tail end of a mechanical arm of the excavator through a lifting lug plate 7, so that the mechanical arm can drive the device to integrally move; the upper end of the vacuum pump joint 8 is connected with an external vacuum pump through a plastic hose, and the upper end of the vacuum pump joint 8 is a tail-shaped joint with a toothed pipe, so that the upper end of the vacuum pump joint 8 is more tightly connected with the plastic hose; the water inlet end of the high-pressure water nozzle 11 is connected with an external high-pressure water pipeline, and the water inlet end of the high-pressure water nozzle 11 adopts a plug-and-play quick connector.

When the mud suction operation is carried out, the bottom mud discharge door 3 is closed, the excavator mechanical arm drives the device to move to the excavation position, the high-pressure water spray head 11 is started, and high-pressure water flow is utilized to break up sand and stone and enable soil to be slurried to form a mud-water mixture, wherein the sand and stone with the diameter larger than that of the mud suction pipe 6 can be settled at the bottom of the excavation pit under the action of the high-pressure water flow, so that the subsequent working process is not affected; placing the lower part of the mud suction pipe 6 in the mud-water mixture, starting a vacuum pump to vacuumize a cavity formed by the top cover 1, the cylinder 2 and the bottom mud discharge door 3, and sucking the mud-water mixture into the cavity formed by the top cover 1, the cylinder 2 and the bottom mud discharge door 3 through the mud suction pipe 6 when the vacuum degree in the cavity formed by the top cover 1, the cylinder 2 and the bottom mud discharge door 3 meets the requirement of sucking the mud-water mixture; after the liquid level in the cavity formed by the top cover 1, the barrel 2 and the bottom mud discharging door 3 reaches a certain height, the anti-overflow valve 9 is closed, the vacuum pump stops working, and the mud sucking operation is finished.

When the mud discharging operation is carried out, the excavator mechanical arm driving device moves to the designated position, the bottom mud discharging door 3 is opened, the mud-water mixture in the cavity formed by the top cover 1, the barrel 2 and the bottom mud discharging door 3 is discharged, the mud discharging operation is finished, and the device can be driven by the excavator mechanical arm to return to the excavating position for carrying out the next mud sucking operation.

In an optional implementation manner, the device provided by the embodiment of the invention further comprises a hydraulic cylinder support 12, a hydraulic cylinder 13 and a hydraulic external joint 14, so as to ensure that the bottom mud door is tightly closed, and an approximately closed cavity is formed inside the device; wherein, the hydraulic cylinder support 12 is fixed on the outer wall of the cylinder body 2; one end of a hydraulic cylinder 13 is connected with the hydraulic cylinder support 12, and the other end of the hydraulic cylinder 13 is connected with the mud discharging door swing arm 5; the hydraulic outer joint 14 is located on the cylinder barrel of the hydraulic cylinder 13.

The hydraulic cylinder support 12 and the hydraulic cylinder 13, the hydraulic cylinder 13 and the mud discharging door swing arm 5 are connected in a hinged mode, and the hydraulic outer joint 14 is connected with a hydraulic pipe on the excavator and used for transmitting hydraulic pressure to the hydraulic cylinder 13. In the using process, a piston rod of the hydraulic cylinder 13 extends out to drive the bottom mud discharging door 3 to be closed, and the top cover 1, the cylinder body 2 and the bottom mud discharging door 3 form an approximately closed cavity; and the piston rod of the hydraulic cylinder 13 retracts to drive the bottom mud discharging door 3 to be opened, and the mud-water mixture in the cavity formed by the top cover 1, the cylinder body 2 and the bottom mud discharging door 3 is discharged.

In order to enhance the sealing performance of the device, as shown in fig. 2, a top cover sealing gasket 15 is further arranged at the joint of the top cover 1 and the vacuum pump joint 8.

Optionally, as shown in fig. 1, a barrel passing transition plate 16 is further arranged at the joint of the barrel body 2 and the mud suction pipe 6, the barrel passing transition plate 16 is fixed on the side wall of the barrel body 2 through two flanges at the inner side and the outer side of the barrel body 2, the mud suction pipe 6 passes through a circular hole at the center of the barrel passing transition plate 16, so that the movement of the mud suction pipe 6 at the joint is limited, and the joint is reinforced.

In addition, as shown in fig. 1, the outer wall of the cylinder 2 is further provided with a mud suction pipe clamp 17 for reducing shaking and vibration of the mud suction pipe 6 in the use process of the device, and the mud suction pipe clamp 17 is connected with the mud suction pipe 6, so that the problem that the joint of the mud suction pipe 6 and the cylinder 2 is loosened due to severe shaking of the mud suction pipe 6 is solved, and the sealing performance of the device is further enhanced.

Optionally, as shown in fig. 4, a bottom door sealing strip 18 is further provided on the inner side of the bottom mud discharging door 3 for enhancing the sealing performance of the device.

Further, as shown in fig. 4, the inner wall of the mud suction pipe 6 may be explosion-proof treated, and an explosion-proof inner sleeve 19 is disposed on the inner wall of the barrel 2, an explosion-proof retainer ring 20 is disposed at the lower end of the barrel 2, and an explosion-proof bottom plate 21 is disposed at the inner side of the bottom mud discharge door 3, and the explosion-proof inner sleeve 19 and the inner wall of the barrel 2, the explosion-proof retainer ring 20 and the lower end of the barrel 2, and the explosion-proof bottom plate 21 and the inner side of the bottom mud discharge door 3 are fixed by pins respectively. Because the explosion-proof metal is difficult for producing the spark when rubbing, striking take place with the grit in the muddy water mixture, therefore the device has explosion-proof function, can be used to excavate the oil gas pipeline that takes place to reveal. For example, in the embodiment of the invention, copper is used as the materials of the explosion-proof inner sleeve 19, the explosion-proof baffle ring 20 and the explosion-proof bottom plate 21, and the copper plating treatment is carried out on the inner wall of the sludge suction pipe 6, so that the device has an explosion-proof function. Of course, other types of explosion-proof metals may also be used, which is not limited in the embodiments of the present invention.

In conclusion, in the embodiment of the invention, the mud around the buried line pipe is slurried to form the mud-water mixture by jetting water flow through the high-pressure water spray head on the outer wall of the mud suction barrel, and meanwhile, the mud suction barrel is externally connected with the vacuum pump which performs vacuum pumping operation on the mud suction barrel, so that the mud suction barrel can suck and convey the mud-water mixture around the buried line pipe; in addition, the device has an explosion-proof function by adopting the explosion-proof assembly, so that the device can be used for excavating leaked oil and gas pipelines; the vacuum mud suction barrel provided by the embodiment of the invention can functionally replace an excavator bucket, realizes lossless excavation of the buried line pipe, is suitable for the buried line pipe which is inconvenient to apply the bucket for operation, and improves the mechanical equipment level for maintaining the buried line pipe.

All the above optional technical solutions may be combined arbitrarily to form the optional embodiments of the present disclosure, and are not described herein again.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vacuum mud suction bucket apparatus, comprising: a base assembly and a water spray assembly;

the basic assembly comprises a top cover (1), a barrel body (2), a bottom mud discharge door (3), a swing arm support (4), a mud discharge door swing arm (5), a mud suction pipe (6), a hoisting lug plate (7), a vacuum pump joint (8), an anti-overflow valve (9) and a barrel passing transition plate (16); the top cover (1), the barrel (2) and the bottom mud discharging door (3) form a cavity; the swing arm support (4) is fixed on the outer wall of the barrel (2); one end of the mud discharging door swing arm (5) is connected with the swing arm support (4), and the other end of the mud discharging door swing arm (5) is connected with the bottom mud discharging door (3); the sludge suction pipe (6) penetrates through one end, close to the top cover (1), of the barrel body (2) and is fixed on the barrel body (2), one end of the sludge suction pipe (6) extends into a cavity formed by the top cover (1), the barrel body (2) and the bottom sludge discharge door (3), the other end of the sludge suction pipe (6) is arranged on the outer side of the barrel body (2), and a pipe opening faces the ground;

the lifting lug plate (7) is fixed on the top cover (1); the vacuum pump joint (8) penetrates through the top cover (1) and is fixed on the top cover (1), and the lower end of the vacuum pump joint (8) extends into a cavity formed by the top cover (1), the barrel (2) and the bottom mud discharge door (3); the overflow prevention valve (9) is connected with the lower end of the vacuum pump joint (8);

the barrel passing transition plate (16) is positioned at the joint of the barrel body (2) and the sludge suction pipe (6);

the water spraying assembly comprises a spray head fixing piece (10) and a high-pressure water spray head (11); the spray head fixing piece (10) is fixed on the outer wall of the barrel (2); the high-pressure water spray head (11) is connected with the spray head fixing piece (10), and the water outlet end of the high-pressure water spray head (11) faces the ground.

2. The device according to claim 1, characterized in that it further comprises a hydraulic cylinder support (12), a hydraulic cylinder (13) and a hydraulic outer joint (14);

the hydraulic cylinder support (12) is fixed on the outer wall of the barrel (2); one end of the hydraulic cylinder (13) is connected with the hydraulic cylinder support (12), and the other end of the hydraulic cylinder (13) is connected with the mud discharge door swing arm (5); the hydraulic external joint (14) is positioned on the cylinder barrel of the hydraulic cylinder (13).

3. The apparatus of claim 1 or 2, further comprising: a top cover gasket (15);

the top cover sealing gasket (15) is positioned at the joint of the top cover (1) and the vacuum pump joint (8).

4. The apparatus of claim 1 or 2, further comprising: a mud suction pipe clamp (17);

the mud suction pipe clamp (17) is positioned on the outer wall of the barrel body (2), and the mud suction pipe clamp (17) is connected with the mud suction pipe (6).

5. The apparatus of claim 1 or 2, further comprising: a bottom door weatherstrip (18);

the bottom door sealing strip (18) is positioned on the inner side of the bottom mud discharging door (3).

6. The apparatus of claim 1 or 2, further comprising: an explosion-proof inner sleeve (19);

the explosion-proof inner sleeve (19) covers the inner wall of the cylinder body (2).

7. The apparatus of claim 1 or 2, further comprising: an explosion-proof retainer ring (20);

the anti-explosion baffle ring (20) is positioned at the lower end of the cylinder body (2), and the inner diameter of the anti-explosion baffle ring (20) is not larger than that of the cylinder body (2).

8. The apparatus of claim 1 or 2, further comprising: an explosion-proof bottom plate (21);

the explosion-proof bottom plate (21) covers the inner side of the bottom mud discharging door (3).