阅读说明：本技术 一种压裂管汇快接装置 (Fracturing manifold connects device soon ) 是由 刘有仓 邵明琦 刘均 王建伟 程可忠 冯晓宇 张鹏远 陈炳刚 刘元良 姜崇刚 徐 于 2020-06-22 设计创作，主要内容包括：本发明公开了一种压裂管汇快接装置,第一活动弯头、直线管、第二活动弯头、旋塞阀和单流阀顺序连接,支座与第二活动弯头固定连接,油缸的一端与直线管连接,油缸的另一端与支座连接,油缸可带动直线管绕第二活动弯头转动,控制单元通过液压系统控制油缸进而实现控制直线管的转动。有益效果：单向阀实现压裂液由压裂设备向管汇橇的单向流动,防止压裂液反流对压裂设备造成危害,单向阀还可将压力差产生的波动集中到快接装置与管汇橇的连接处,减少整个快接装置的振动,增加使用寿命；旋塞阀实现单台压裂设备排液的通断,降低维修成本；液压系统实现快接装置自动调节,无需人工上提或下压,控制单元实现远程控制,省时省力,降低人工操作难度。(The invention discloses a fracturing manifold quick-connection device which comprises a first movable elbow, a straight pipe, a second movable elbow, a plug valve and a check valve which are sequentially connected, wherein a support is fixedly connected with the second movable elbow, one end of an oil cylinder is connected with the straight pipe, the other end of the oil cylinder is connected with the support, the oil cylinder can drive the straight pipe to rotate around the second movable elbow, and a control unit controls the oil cylinder through a hydraulic system so as to control the rotation of the straight pipe. Has the advantages that: the check valve realizes the one-way flow of the fracturing fluid from the fracturing equipment to the manifold sledge, prevents the damage to the fracturing equipment caused by the backflow of the fracturing fluid, and can also concentrate the fluctuation generated by the pressure difference to the joint of the quick connection device and the manifold sledge, thereby reducing the vibration of the whole quick connection device and prolonging the service life; the plug valve realizes the on-off of the liquid discharged by a single fracturing device, and reduces the maintenance cost; the hydraulic system realizes automatic adjustment of the quick connection device, manual lifting or pressing is not needed, the control unit realizes remote control, time and labor are saved, and the manual operation difficulty is reduced.)

1. The utility model provides a fracturing manifold connects device soon which characterized in that: including first activity elbow, straight spool, the movable elbow of second, hydro-cylinder, support, plug valve, check valve, hydraulic system, the control unit, first activity elbow, straight spool, the movable elbow of second, plug valve and check valve are connected in proper order, support and the movable elbow fixed connection of second, the one end and the sharp union coupling of hydro-cylinder, the other end and the support of hydro-cylinder are connected, and the hydro-cylinder can drive straight spool and rotate around the movable elbow of second, the control unit passes through the rotation of hydraulic system control hydro-cylinder and then realization control straight spool.

2. The fracturing manifold quick connect device of claim 1, wherein: the hydraulic system comprises an oil supply device, a power device, an electromagnetic control valve, a one-way throttle valve, an energy accumulator and a balance valve, wherein the oil supply device, the power device and the electromagnetic control valve are sequentially connected, the electromagnetic control valve is further respectively connected with the one-way throttle valve, the balance valve and the oil supply device, the one-way throttle valve is further connected with the balance valve, and the balance valve is further respectively connected with the energy accumulator and a rod cavity of the oil cylinder.

3. The fracturing manifold quick connect device of claim 2, wherein: the hydraulic system further comprises an overflow valve, wherein the inlet end of the overflow valve is connected with the power device, and the outlet end of the overflow valve is connected with the oil supply device.

4. The fracturing manifold quick connect device of claim 2, wherein: the oil supply device is also connected with a rodless cavity of the oil cylinder.

5. The fracturing manifold quick connect device of any one of claims 1 to 4, wherein: the control unit comprises a signal transmitter and a signal receiver, the signal transmitter is used for transmitting a control signal, and the signal receiver is used for receiving the control signal and controlling the electromagnetic control valve and the power device according to the control signal.

6. The fracturing manifold quick connect device of claim 5, wherein: the signal transmitter is a movable controller.

Technical Field

The invention relates to the technical field of fracturing, in particular to a fracturing manifold quick connection device.

Background

When the fracturing equipment works, high-pressure fracturing fluid pumped out by the fracturing equipment is conveyed to the manifold sledge firstly, and then the fracturing fluid is conveyed by the manifold sledge. Each high-pressure manifold of fracturing equipment needs to be connected with a manifold sledge through a connecting device, a traditional connecting device usually needs to be connected with five to six connectors, high-pressure movable elbows or straight pipes are assembled section by section, the assembling difficulty is high, the adaptability is poor, at least three operators are needed to manually move pipes with extremely high weight during connection, the time consumption is long, the operation efficiency is low, and a great safety risk exists. Although manifold quick-connection devices appear in the market at present, the up-and-down swinging of manifold movable arms is realized through a hydraulic power-assisted system, the labor is saved, and the operation efficiency is improved, however, in the connection process of the conventional well site fracturing manifold sleds, one fracturing manifold sleds often can be provided with a plurality of high-pressure suction ports, and each suction port is communicated through a high-pressure manifold, so that each suction port needs one quick-connection device to be connected to fracturing equipment, and the operation can be started at the same time after the connection is completed. This can lead to the pressure in the UNICOM pipe very big, causes the pressure of fracturing fluid in the UNICOM header pipe to exceed the pressure of fracturing equipment very easily, and then causes the fracturing fluid reverse flow, produces irreversible harm to fracturing equipment to there is very big potential safety hazard. Meanwhile, if one fracturing device breaks down, the high-pressure suction inlet and the fracturing device need to be disconnected for maintenance, the conventional quick connection device cannot realize the disconnection maintenance of the single fracturing device, once the fracturing device breaks down, the whole well site fracturing work needs to be stopped for maintenance, and the maintenance cost is high. Moreover, when the existing quick connection device realizes the rotation of the manifold movable arm, the hydraulic power assisting function can be realized only by manually lifting or pressing the manifold movable arm to break the balance of the hydraulic oil cylinder, although the labor can be saved, a plurality of workers are still required to carry out field operation, and the operation cost is high.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides a fracturing manifold quick-connection device.A one-way valve is arranged to realize one-way flow of fracturing fluid from fracturing equipment to a manifold sledge, so that the fracturing fluid is prevented from being damaged by backflow, and meanwhile, the one-way valve can also concentrate fluctuation generated by pressure difference to the joint of the quick-connection device and the manifold sledge, so that the vibration of the whole quick-connection device is reduced, and the service life of the quick-connection device is prolonged; by arranging the plug valve, the on-off of the liquid discharge of the single fracturing equipment is realized, the influence of the fault of the single fracturing equipment on the whole operation process is reduced, and meanwhile, the maintenance cost can be reduced; realize the automatically regulated of connecing the device soon through setting up hydraulic system, need not the manual work and lift or push down, set up the control unit simultaneously, can realize the remote control who connects the device soon, labour saving and time saving reduces the manual operation degree of difficulty, realizes the release of manpower.

The aim of the invention is achieved by the following technical measures: the utility model provides a fracturing manifold connects device soon, includes first activity elbow, straight line pipe, second activity elbow, hydro-cylinder, support, plug valve, check valve, hydraulic system, the control unit, first activity elbow, straight line pipe, second activity elbow, plug valve and check valve are connected in proper order, support and the movable elbow fixed connection of second, the one end and the sharp union coupling of hydro-cylinder, the other end and the support of hydro-cylinder are connected, and the hydro-cylinder can drive straight line pipe and rotate around the movable elbow of second, the control unit passes through hydraulic system control hydro-cylinder and then realizes controlling the rotation of straight line pipe.

Further, the hydraulic system comprises an oil supply device, a power device, an electromagnetic control valve, a one-way throttle valve, an energy accumulator and a balance valve, wherein the oil supply device, the power device and the electromagnetic control valve are sequentially connected, the electromagnetic control valve is further respectively connected with the one-way throttle valve, the balance valve and the oil supply device, the one-way throttle valve is further connected with the balance valve, and the balance valve is further respectively connected with the energy accumulator and a rod cavity of the oil cylinder.

Furthermore, the hydraulic system further comprises an overflow valve, wherein the inlet end of the overflow valve is connected with the power device, and the outlet end of the overflow valve is connected with the oil supply device.

Furthermore, the oil supply device is also connected with a rodless cavity of the oil cylinder.

Further, the control unit comprises a signal transmitter and a signal receiver, wherein the signal transmitter is used for sending out a control signal, and the signal receiver is used for receiving the control signal and controlling the electromagnetic control valve and the power device according to the control signal.

Further, the signal transmitter is a movable controller.

Compared with the prior art, the invention has the beneficial effects that: the fracturing manifold quick connection device has the advantages that the one-way valve is arranged, so that the one-way flow of fracturing fluid from the fracturing equipment to the manifold sledge is realized, the damage to the fracturing equipment caused by the backflow of the fracturing fluid is prevented, meanwhile, the one-way valve can also concentrate the fluctuation generated by the pressure difference to the connection part of the quick connection device and the manifold sledge, the vibration of the whole quick connection device is reduced, and the service life of the quick connection device is prolonged; by arranging the plug valve, the on-off of the discharged liquid of the single fracturing equipment is realized, the influence of the fault of the single fracturing equipment on the whole operation process is reduced, and meanwhile, the maintenance cost can be reduced; realize the automatically regulated of connecing the device soon through setting up hydraulic system, need not the manual work and lift or push down, set up the control unit simultaneously, can realize the remote control who connects the device soon, labour saving and time saving reduces the manual operation degree of difficulty, realizes the release of manpower.

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic structural diagram of the fracturing manifold quick-connection device.

The hydraulic control system comprises a hydraulic control system, a balance valve, an energy accumulator, an overflow valve, a signal transmitter, a signal receiver, a first movable elbow, a straight pipe, a second movable elbow, a plug valve, a check valve, an oil cylinder, a support, an oil supply device, a power device, an electromagnetic control valve, a check throttle valve, a balance valve, an energy accumulator, an overflow valve, a signal transmitter and a signal receiver, wherein the straight pipe.

Detailed Description

As shown in figure 1, a fracturing manifold connects device soon, including first activity elbow 1, straight line pipe 2, second activity elbow 3, hydro-cylinder 6, support 7, plug valve 4, check valve 5, hydraulic system, the control unit, first activity elbow 1, straight line pipe 2, second activity elbow 3, plug valve 4 and 5 connection in proper order of check valve, fracturing fluid is carried to the manifold sledge through first activity elbow 1, straight line pipe 2, second activity elbow 3, plug valve 4 and check valve 5 in proper order by fracturing equipment. Support 7 and the 3 fixed connection of second activity elbow, it is specific, second activity elbow 3 includes first return bend and second return bend and first return bend and second return bend rotatable coupling, first return bend still is connected with plug valve 4, the second return bend still is connected with straight spool 2, support 7 and first return bend fixed connection. The one end and the sharp 2 of managing of hydro-cylinder 6 are connected, the other end and the support 7 of hydro-cylinder 6 are connected, and hydro-cylinder 6 can drive straight line pipe 2 and rotate around second activity elbow 3, and is specific, be equipped with the hydraulic stem in the hydro-cylinder 6, the one end and the straight line pipe 2 of hydraulic stem are articulated, the other end of hydraulic stem stretches into in the hydro-cylinder 6 and can remove in the hydro-cylinder 6 from the one end of hydro-cylinder 6, the other end and the support 7 of hydro-cylinder 6 are articulated, can realize through the removal of hydraulic stem in hydro-cylinder 6 that the hydraulic stem drives straight line pipe 2 and second return bend and rotates around first return bend. The control unit controls the oil cylinder 6 through a hydraulic system so as to control the rotation of the linear pipe 2. Specifically, hydraulic system is the execution unit of the control unit, hydraulic system is used for controlling the removal of hydraulic stem in hydro-cylinder 6, and then realizes controlling the rotation of straight line pipe 2 and second return bend around first return bend. The automatic adjustment of the quick connection device is realized through the hydraulic system, manual lifting or pressing is not needed, the control unit can realize the remote control of the quick connection device, time and labor are saved, and the manual operation cost on site is reduced.

The hydraulic system comprises an oil supply device 8, a power device 9, an electromagnetic control valve 10, a one-way throttle valve 11, an energy accumulator 13 and a balance valve 12, wherein the oil supply device 8, the power device 9 and the electromagnetic control valve 10 are sequentially connected, the electromagnetic control valve 10 is further respectively connected with the one-way throttle valve 11, the balance valve 12 and the oil supply device 8, the one-way throttle valve 11 is further connected with the balance valve 12, and the balance valve 12 is further respectively connected with the rod cavities of the energy accumulator 13 and the oil cylinder 6. Specifically, the one-way throttle valve 11 throttles only the delivery direction from the balancing valve 12 to the electromagnetic control valve 10. A return passage is provided in the balance valve 12, and the communication of the return passage needs a certain pressure to be maintained. The electromagnetic control valve 10 is provided with 4 interfaces which are respectively a p interface, a t interface, an a interface and a b interface, the p interface is an input interface, when the p interface is communicated with the a interface, the b interface is also communicated with the t interface, when the p interface is communicated with the b interface, the a interface is also communicated with the t interface, the p interface is connected with the power device 9, the t interface is connected with the oil supply device 8, the a interface is connected with the one-way throttle valve 11, and the b interface is connected with the balance valve 12. The hydraulic oil is delivered to the rod cavity of the oil cylinder 6 by the oil supply device 8 through the electromagnetic control valve 10, the one-way throttle valve 11 and the balance valve 12, so that the hydraulic rod can move towards the direction close to the second movable elbow 3, and the oil cylinder 6 drives the straight pipe 2 to rotate upwards around the second movable elbow 3. The hydraulic oil is conveyed to the oil supply device 8 from the rod cavity through the balance valve 12, the one-way throttle valve 11 and the electromagnetic control valve 10, the pressure in the rod cavity is reduced, the linear rod 2 falls under the action of the gravity of the linear rod, and the linear pipe 2 rotates downwards around the second movable elbow 3.

The hydraulic system further comprises an overflow valve 14, wherein the inlet end of the overflow valve 14 is connected with the outlet end of the power device 9, and the outlet end of the overflow valve 14 is connected with the oil supply device 8. When the delivery pressure at the outlet end of the power unit 9 is too high, the hydraulic oil can be delivered to the oil supply unit 8 through the overflow valve 14, and the overflow valve 14 can maintain the pressure of the hydraulic oil in the delivery pipeline.

The oil supply device 8 is also connected with the rodless cavity of the oil cylinder 6. When the hydraulic rod moves towards the direction close to the second movable elbow 3, hydraulic oil in the rodless cavity can enter the oil supply device 8 from the rodless cavity, when the hydraulic rod moves towards the direction far away from the second movable elbow 3, hydraulic oil can enter the rodless cavity from the oil supply device 8, and the rodless cavity is connected with the oil supply device 8, so that the pressure at two ends of a piston on the hydraulic rod can be kept balanced, and the service life of the piston is prolonged.

The control unit comprises a signal transmitter 15 and a signal receiver 16, the signal transmitter 15 being adapted to emit a control signal, the signal receiver 16 being adapted to receive the control signal and to control the solenoid control valve 10 and the power means 9 in dependence of the control signal. The on-off states of the electromagnetic control valve 10 and the power device 9 can be automatically controlled through the control unit, the remote control of the quick connection device is realized, time and labor are saved, and the manual operation cost on site is reduced.

The signal transmitter 15 is a movable controller. The signal transmitter 15 can move along with the staff, and during field operation, the staff can control and operate at any time to quickly connect the manifolds.

Because the electromagnetic control valve 10 is also provided with the control wrench, the connection state of 4 interfaces on the electromagnetic control valve 10 can be realized by manually adjusting the control wrench, when a remote control unit breaks down or according to the needs of field operation, the local control of an operation field can be realized by manually operating the control wrench and the power device 9. The control mode can be freely selected according to the actual situation, and the control is flexible.

The working principle is as follows:

the ascending process of the linear pipe: the working personnel sends out a control signal through the signal transmitter 15, the signal receiver 16 receives the control signal and then switches on the p interface and the a interface of the electromagnetic control valve 10, the power device 9 is started, the power device 9 transmits hydraulic oil from the oil supply device 8 to the electromagnetic control valve 10, the hydraulic oil is transmitted to the balance valve 12 through the one-way throttle valve 11 by the electromagnetic control valve 10, and the balance valve 12 transmits the hydraulic oil to the energy accumulator 13 and the rod cavity of the oil cylinder 6. Along with the increase of the hydraulic oil in the rod cavity, the pressure of the hydraulic oil in the rod cavity is increased, the hydraulic oil pushes the piston to move towards the direction close to the second movable elbow 3, and then the hydraulic rod is driven to move towards the direction close to the second movable elbow 3, so that the straight line pipe 2 rotates upwards around the second movable elbow 3, and the rising process of the straight line pipe 2 is realized. During the raising of the linear tube 2, the operator can control it at any time by means of the signal transmitter 15 to reach the predetermined raised position. When a worker closes the power device 9, the balance valve 12 stops conveying hydraulic oil to the energy accumulator 13 and the rod cavity, a return circuit in the balance valve 12 is not opened, the balance valve 12 cannot convey hydraulic oil reversely, the energy accumulator 13 is communicated with the rod cavity, the pressure of the hydraulic oil in the energy accumulator 13 is the same as that of the hydraulic oil in the rod cavity, the energy accumulator 13 is enough to maintain the stability of the pressure of the hydraulic oil in the rod cavity, and the straight line pipe 2 can be kept in a hovering state at different positions.

The descending process of the linear pipe: a worker sends a control signal through the signal transmitter 15, the signal receiver 16 receives the control signal and then connects the p interface and the b interface of the electromagnetic control valve 10, the power device 9 is started, the power device 9 conveys hydraulic oil to the electromagnetic control valve 10 from the oil supply device 8, the hydraulic oil is conveyed to the balance valve 12 through the electromagnetic control valve 10, a return flow path in the balance valve 12 is connected, reverse flow of the balance valve 12 is achieved, the hydraulic oil in the rod cavity is reversely conveyed to the one-way throttle valve 11 through the balance valve 12, then conveyed to the a interface of the electromagnetic control valve 10 through the one-way throttle valve 11 and conveyed to the oil supply device 8 through the t interface, the hydraulic oil in the rod cavity is reduced, the pressure is reduced, the linear pipe 2 falls under the action of self gravity, and the descending process of the linear pipe 2. During descending, the backflow speed of the hydraulic oil can be limited through the throttling function of the one-way throttle valve 11, the falling speed of the linear pipe 2 is further limited, when the set height is reached, the power device 9 is closed, the interface b and the interface t of the electromagnetic control valve 10 are connected, the hydraulic oil in the oil circuit between the balance valve 12 and the electromagnetic control valve 10 flows back into the oil supply device 8 through the interface b and the interface t, the backflow circuit in the balance valve 12 is disconnected, the balance valve 12 cannot flow in the reverse direction, the hydraulic oil in the rod cavity cannot be conveyed in the reverse direction, and at the moment, the hydraulic oil in the energy accumulator 13 is enough to maintain the linear pipe 2 in a hovering state.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.