CN210858684U

CN210858684U - Fracturing unit truck high-pressure manifold high-speed joint auxiliary device

Info

Publication number: CN210858684U
Application number: CN201921465664.XU
Authority: CN
Inventors: 宋艳春; 邵宏宇; 高春宏
Original assignee: Daqing Petroleum Administration Bureau
Current assignee: China National Petroleum Corporation Limited; Daqing Petroleum Administration Bureau
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-06-26
Anticipated expiration: 2029-09-05

Abstract

A fracturing unit truck high-pressure manifold quick connection auxiliary device. The main problem of current oil field fracturing unit truck high-pressure manifold packaging efficiency low, intensity of labour is big of solving. The method is characterized in that: be connected with straight tube stand (2) on swivel support (1), straight tube stand (2) are through fixed high-pressure elbow (3) connection level straight tube A (4), and level straight tube A (4) are through sealed rotation axis A (7), elbow connection one section straight tube, the straight tube is through sealed rotation axis B (8), elbow connection level straight tube B (10), and sealed rotation axis D (12) is connected through sealed rotation axis C (11), elbow in level straight tube B (10), and sealed rotation axis E (13) is connected through the elbow in sealed rotation axis D (12), high pressure interface (14) is connected in sealed rotation axis E (13). Adopt this fracturing unit truck high-pressure manifold high-speed joint auxiliary device can greatly reduced workman intensity of labour, improves the packaging efficiency, realizes accurate butt joint.

Description

Fracturing unit truck high-pressure manifold high-speed joint auxiliary device

Technical Field

The utility model relates to an oil field, a fracturing unit truck high-pressure manifold high-speed joint auxiliary device specifically says so.

Background

High-pressure equipment in an oil field needs to be connected with a wellhead by using a high-pressure steel pipe, a manifold is high in pressure bearing, thick-wall pipe fittings need to be used, the dead weight of one set of manifold reaches over 500kg, and the manifold needs to be split into a plurality of union elbows and union straight pipes on site to be assembled. At present, the fracturing equipment and a wellhead are randomly placed according to the actual situation of an operation site by adopting a hard pipe connection mode, the fracturing equipment and the wellhead are required to be connected by combining a plurality of groups of elbows and straight pipes, the labor intensity of workers is high, the working efficiency is low, at least 3 persons are required to cooperate, and at least 10 minutes is required for completing the connection of a trolley high-pressure manifold.

SUMMERY OF THE UTILITY MODEL

In order to overcome current oil field fracturing truck high-pressure manifold packaging inefficiency, intensity of labour is big not enough, the utility model provides a fracturing truck high-pressure manifold high-speed joint auxiliary device adopts this fracturing truck high-pressure manifold high-speed joint auxiliary device can greatly reduced workman intensity of labour, improves the packaging efficiency, realizes accurate butt joint.

The technical scheme of the utility model is that: a high-pressure manifold quick connection auxiliary device of a fracturing truck comprises a rotary support, wherein a straight pipe upright post is connected to the rotary support, the straight pipe upright post is connected with a horizontal straight pipe A through a fixed high-pressure elbow, the horizontal straight pipe A is connected with a section of straight pipe through a sealing rotating shaft A and an elbow, the straight pipe is connected with a horizontal straight pipe B through a sealing rotating shaft B and an elbow, the horizontal straight pipe B is connected with a sealing rotating shaft D through a sealing rotating shaft C and an elbow, the sealing rotating shaft D is connected with a sealing rotating shaft E through an elbow, and the sealing rotating shaft E is connected with;

a cantilever support is connected between the horizontal straight pipe A and the rotary support, a power-assisted oil cylinder is fixed on the horizontal straight pipe B through an oil cylinder fixing support, a piston rod of the power-assisted oil cylinder is fixed on the rotatable oil cylinder support, and the other end of the rotatable oil cylinder support is fixed on the sealed rotary shaft A.

The piston end of the power-assisted oil cylinder is connected with a hydraulic oil pump through a hydraulic pipeline, an overflow valve and an energy accumulator are respectively connected onto the hydraulic pipeline, and the hydraulic oil pump is connected with a hydraulic oil tank.

The utility model discloses following beneficial effect has: by adopting the scheme, the device adopts the combination of the sealing rotating shafts, the straight pipes and the elbows in a plurality of different directions, so that the manifold can freely rotate in the direction of the X, Y, Z shaft, the position of the high-pressure interface can be adjusted at will, and the quick connection is realized. Meanwhile, the power-assisted oil cylinder bears most of the weight of the manifold, so that the manifold can be pulled by applying a very small external force during operation, the labor intensity of operators is reduced, manpower is saved, all three-dimensional accurate positioning butt joints at all angles, different positions or different distances required by the butt joint of the manifold can be completed by only one person, and great physical strength and long time are not required. The current situation of relying on manpower transport group to high-pressure manifold has completely been changed, realizes that single installation and the dismantlement of carrying out high-pressure manifold fast improve the operating efficiency.

Drawings

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

fig. 2 is a front view of the present invention rotated by a certain angle around the sealing rotation axis B;

fig. 3 is a schematic diagram of the operation of the booster cylinder.

In the figure, 1-a rotary support, 2-a straight pipe upright post, 3-a fixed high-pressure elbow, 4-a horizontal straight pipe A, 5-a cantilever support, 6-a rotatable oil cylinder support, 7-a sealed rotating shaft A, 8-a sealed rotating shaft B, 9-an assisting oil cylinder, 10-a horizontal straight pipe B, 11-a sealed rotating shaft C, 12-a sealed rotating shaft D, 13-a sealed rotating shaft E, 14-a high-pressure interface, 15-an oil cylinder fixed support, 21-a hydraulic oil tank, 22-an electric motor, 23-a hydraulic oil pump, 24-a system pressure gauge, 25-an overflow valve and 26-an energy accumulator.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 to 3, the auxiliary device for quickly connecting the high-pressure manifolds of the fracturing truck comprises a rotary support 1, wherein all pipe fittings of the auxiliary device are high-pressure manifold elements capable of resisting pressure of 140MPa, the rotary support 1 is connected with a straight pipe upright post 2, the upper end of the straight pipe upright post 2 is connected with a horizontal straight pipe a4 through a fixed high-pressure elbow 3, the end part of the horizontal straight pipe a4 is connected with an elbow, the elbow is connected with another elbow through a sealed rotating shaft a7, and the end part of the elbow is connected with a section of straight pipe; the straight pipe is connected with a horizontal straight pipe B10 through a sealing rotating shaft B8 and an elbow, the horizontal straight pipe B10 is connected with an elbow through a sealing rotating shaft C11, the other end of the elbow is connected with a sealing rotating shaft D12, a sealing rotating shaft D12 is connected with a sealing rotating shaft E13 through an elbow, and the sealing rotating shaft E13 is connected with the high-pressure interface 14 through an elbow. The rotary support 1 and all the seal rotary shafts described above are rotatable in the respective axial directions.

Be connected with cantilever 5 between horizontal straight tube A4 and the rotating support 1, cantilever 5 can play the supporting role to horizontal straight tube A4 and manifold at rear portion, avoids high-pressure manifold to receive the influence of gravity under operating condition, leads to inside medium to reveal to better guarantee work safety. An oil cylinder fixing support 15 is fixed on the horizontal straight pipe B10, a rotatable oil cylinder support 6 is fixed outside the sealing rotating shaft A7, and the rotatable oil cylinder support 6 can rotate along with the sealing rotating shaft A7. An assistant oil cylinder 9 is fixed on the oil cylinder fixing support 15, and a piston rod of the assistant oil cylinder 9 is connected to the rotatable oil cylinder support 6. The servo cylinder 9 is rotatable together with the rotatable cylinder holder 6 along with the seal rotation axis a 7. The piston end of the power-assisted oil cylinder 9 is connected with a hydraulic oil pump 23 through a hydraulic pipeline, the hydraulic pipeline is respectively connected with an overflow valve 25 and an energy accumulator 26, and the hydraulic oil pump 23 is connected with a hydraulic oil tank 21 and is controlled by a motor 22.

The hydraulic system keeps the system pressure by adjusting the overflow valve 25, thereby controlling the pulling force generated by the power cylinder 9, causing the pulling force of the power cylinder 9 on the manifold to be slightly less than or equal to the gravity of the manifold, and the manifold can be pulled by applying a small external force by an operator. When the manifold is heavy, the piston of the boosting oil cylinder 9 is pulled out when the pulling force F borne by the piston is larger than the pushing force of the hydraulic oil, and the hydraulic oil returns to the oil tank from the rod cavity of the oil cylinder. When the manifold is lifted upwards, the stress of the piston is reduced, the system pressure is reduced, the overflow valve is closed, oil is supplemented to the rod cavity, the piston retracts, when the set pressure of the overflow valve is reached, the overflow valve is opened, the system pressure is unchanged, and the pull force of the oil cylinder still bears most of the gravity of the manifold. Through this hydraulic pressure helping hand system, can overcome most manifold weight, assist its removal to easily realize manifold removal, installation.

In the auxiliary device, the horizontal straight pipe A4 can rotate around the Y axis through the rotating support 1, the horizontal straight pipe B10 can rotate around the Y axis through the sealing rotating shaft A7 to adjust the angle between the horizontal manifold 10 and the horizontal manifold 4 in the horizontal direction, and the length in the horizontal direction can be adjusted through adjusting the angle. The vertical rotation of the straight pipe B10 around the seal rotation shaft B8 around the Z axis makes it possible to adjust the angle of the straight pipe B10 and the straight pipe a4 in the vertical plane, and by adjusting this angle, the vertical height is adjusted. Through the combination of three rotating components of the sealed rotating shaft C11, the sealed rotating shaft D12 and the sealed rotating shaft E13, the free rotation of the manifold outlet joint in the three directions of the X axis, the Y axis and the Z axis can be ensured, and the high-pressure manifold can meet the assembly at any angle on site.

When the manifold is connected for operation, the wellhead is required to be ensured within the range of the operation radius of 3.6 meters of the device, an operator pulls the high-pressure connector 14 to move towards the wellhead, and the manifold rotates around the rotating support 1 and the sealing rotating shaft A7 in the horizontal direction so as to adjust the horizontal position of the high-pressure connector 14. The height of the high-pressure interface 14 is changed by adjusting the height of the horizontal straight pipe B10 in the vertical direction around the sealing rotating shaft B8. At this time, the power-assisted cylinder 9 can be expanded and contracted under the influence of external force applied by workers, and the hydraulic oil pump 23 can supplement oil into the cylinder in real time to provide power, so that the weight of the horizontal straight pipe B10 and a manifold at the rear end of the horizontal straight pipe B10 is offset. And then through sealed rotation axis C11, sealed rotation axis D12, sealed rotation axis E13, high pressure connection 14 can finely tune near the well head, guarantees the connection angle.

Claims

1. The utility model provides a fracturing unit truck high-pressure manifold high-speed joint auxiliary device, includes rotating support (1), its characterized in that: the rotary support (1) is connected with a straight pipe upright post (2), the straight pipe upright post (2) is connected with a horizontal straight pipe A (4) through a fixed high-pressure elbow (3), the horizontal straight pipe A (4) is connected with a section of straight pipe through a sealing rotary shaft A (7) and an elbow, the straight pipe is connected with a horizontal straight pipe B (10) through a sealing rotary shaft B (8) and an elbow, the horizontal straight pipe B (10) is connected with a sealing rotary shaft D (12) through a sealing rotary shaft C (11) and an elbow, the sealing rotary shaft D (12) is connected with a sealing rotary shaft E (13) through an elbow, and the sealing rotary shaft E (13) is;

a cantilever support (5) is connected between the horizontal straight pipe A (4) and the rotary support (1), a booster oil cylinder (9) is fixed on the horizontal straight pipe B (10) through an oil cylinder fixing support (15), a piston rod of the booster oil cylinder (9) is fixed on the rotatable oil cylinder support (6), and the other end of the rotatable oil cylinder support (6) is fixed on the sealed rotary shaft A (7).

2. The fracturing truck high pressure manifold quick connect assist device of claim 1, wherein: the piston end of the power-assisted oil cylinder (9) is connected with a hydraulic oil pump (23) through a hydraulic pipeline, the hydraulic pipeline is respectively connected with an overflow valve (25) and an energy accumulator (26), and the hydraulic oil pump (23) is connected with a hydraulic oil tank (21).