CN210829182U - Active flow control device - Google Patents
Active flow control device Download PDFInfo
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- CN210829182U CN210829182U CN201921380383.4U CN201921380383U CN210829182U CN 210829182 U CN210829182 U CN 210829182U CN 201921380383 U CN201921380383 U CN 201921380383U CN 210829182 U CN210829182 U CN 210829182U
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Abstract
The utility model relates to an active flow control device, which belongs to the technical field of water injection and exploitation in the production process of oil and gas fields, and relates to a flow control device, in particular to a layered water injection active flow control device, which comprises a columnar hollow supporting cylinder mounting seat and a circuit board actuated by a driving motor, wherein a holding chamber is arranged on the peripheral surface of the supporting cylinder mounting seat, the holding chamber is connected with the supporting cylinder mounting seat in a sealing way, and the holding chamber is axially arranged along the supporting cylinder mounting seat; the accommodating cavity is internally provided with a motor and a hollow valve seat, a valve core is arranged in the valve seat in a sliding manner, and the valve core is connected with the motor through a reciprocating motion device; the utility model discloses simple structure, convenient to use adopts motor drive, turns into the linear motion of case with the rotary motion of motor, can feed back out the aperture size of the first communicating hole of intercommunication first fluid passage and second fluid passage through the position at case place, carries out flow control.
Description
Technical Field
The utility model relates to an active flow control device belongs to the water injection exploitation technical field in the oil gas field production process, relates to a flow control device, in particular to active flow control device of layering water injection.
Background
With the continuous deepening of oil and gas field development, the requirements for technologies such as zonal injection, zonal exploitation and the like are continuously improved, so that the requirements for a key tool, namely a flow control device, required by the zonal injection are also continuously improved.
The principle of the downhole flow control device is that the flow regulation is realized by controlling the size of a liquid flow channel. The existing flow control tools are divided into a lifting pipe column, a mechanical drive, a hydraulic drive, an electro-hydraulic drive and the like from the aspect of operation modes, and the action modes and the principles are as follows:
1) and lifting and releasing the pipe column. In the mode, the tubular column is pulled out, the size of a water nozzle of the flow control tool on the tubular column is changed, and then the tubular column is put in. This is the simplest, but less efficient and places greater constraints on the column structure.
2) And (4) mechanically driving. According to the mode, a control tool is put into the well, and after the control tool is connected with the underground flow control tool, the position of a cylindrical component in the underground tool is changed through the lifting and placing of the control tool, so that the opening and closing of an underground flow channel are realized. The mode is simple to operate, but tools need to be put in, the efficiency is low, the tool is difficult to apply in an oil production well, the flow regulation cannot be realized, and only the on-off control can be realized.
3) And (4) hydraulic driving. According to the method, a hydraulic pipeline is connected with a ground hydraulic pump station and an underground flow control tool, and the opening and closing of a water nozzle in the underground tool are realized by remotely controlling the action of the underground flow control tool through the ground. Although the well descending process is complex, the adjustment of the layered flow can be completed without pulling out the tubular column, the control is simple and convenient, the underground tool can be adjusted for many times at any time according to the flow control requirement, and the multi-stage flow control can be realized. However, the method has the problems that the size of the water nozzle cannot be fed back, stepless flow regulation cannot be realized, the number of hydraulic pipelines is large, and the like.
4) And (5) electro-hydraulic driving. The mode still adopts the hydraulic drive mode to realize the switch and the multistage control of downhole flow control instrument, but controls hydraulic passage and gates certain flow control valve through the solenoid valve in the pit. This approach reduces the number of hydraulic lines compared to the hydraulic drive approach, but other problems still exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an active flow control device, the device adopt motor drive completely, turn into the linear motion of case with the rotary motion of motor, can feed back out the aperture size of flow channel mouth through the position at case place, carry out flow control.
The utility model relates to an active flow control device, which comprises a columnar hollow supporting cylinder mounting seat and a circuit board for driving a motor to act, wherein a holding chamber is arranged on the peripheral surface of the supporting cylinder mounting seat, the holding chamber is connected with the supporting cylinder mounting seat in a sealing way, and the holding chamber is arranged along the axial direction of the supporting cylinder mounting seat;
a motor and a hollow valve seat are arranged in the accommodating cavity, a valve core is arranged in the valve seat in a sliding manner, the valve core is connected with the motor through a reciprocating motion device, one end, far away from the motor, of the valve seat is connected with a columnar hollow overflowing shell, one end, far away from the valve seat, of the overflowing shell is provided with a plug, liquid outlets are uniformly distributed on the circumferential surface of the overflowing shell, and the motor is electrically connected with the circuit board;
the cartridge mounting seat is coaxially provided with a first fluid channel, a hollow area of the valve seat is communicated with a hollow area of the overflowing shell to form a second fluid channel, and the first fluid channel is communicated with the second fluid channel through a first communicating hole formed in the valve seat to form a fluid channel. The fluid channel is communicated with the liquid outlet;
the central axis of the first communicating hole is vertical to the central axis of the valve seat, and when the reciprocating motion device drives the valve core to reciprocate, the valve core reduces or increases the cross sectional area of the first communicating hole for communicating the first fluid channel and the second fluid channel.
Preferably, the reciprocating device comprises a screw rod and a movable nut which is sleeved on the screw rod and is in threaded connection with the screw rod, and one end of the screw rod is connected with an output shaft on the motor through a coupler;
the movable nut is in a hollow cylindrical shape, internal threads are arranged on the movable nut, one end, far away from the screw rod, of the movable nut is fixedly connected with the valve core through a connecting rod, and when the screw rod rotates, the movable nut drives the valve core to do reciprocating motion along the axial direction of the valve seat.
Preferably, a cylindrical boss is eccentrically arranged on the circumferential surface of the supporting cylinder mounting seat, and a first groove and a second groove are sequentially arranged on the cylindrical boss along the axial direction of the supporting cylinder mounting seat;
the circuit board is fixedly arranged in the first groove, the accommodating chamber is arranged in the second groove, a cable on the circuit board penetrates out of the first groove and then extends into the second groove to be connected with the motor, and the cable is hermetically connected with the first groove and the second groove;
an external thread is arranged on the supporting cylinder mounting seat between the first groove and the second groove;
the circuit outer pipe is sleeved on the columnar boss and plugged on the first groove, one end of the circuit outer pipe is in threaded connection with external threads, positioned between the first groove and the second groove, on the towing rod mounting seat, the other end of the circuit outer pipe is axially abutted against a step-shaped compression ring sleeved on the columnar boss and the support cylinder mounting seat, the compression ring is fixedly connected with the columnar boss through a screw, and the screw penetrates through the step surface of the compression ring to be connected with the columnar boss;
and sealing rings are arranged between the columnar bosses positioned at two sides of the first groove and the outer circuit pipe.
Preferably, a columnar oil filling joint is arranged in one end, close to the first groove, of the second groove, a sealing plug is fixedly connected to one end of the oil filling joint, a columnar protective shell is in threaded connection with the other end of the oil filling joint, the accommodating cavity is arranged in the protective shell, a stepped through hole is coaxially arranged on the oil filling joint, one end of the sealing plug extends into the stepped through hole in the oil filling joint, the other end of the stepped through hole is connected with a piston rod, and a sealing ring is arranged between the piston rod and the stepped cylinder hole;
an oil filling hole is formed in the oil filling joint, an oil filling screw is plugged in the oil filling hole, and the oil filling hole is communicated with a stepped through hole in the oil filling joint;
a piston is arranged in the area between the oil injection joint and the protective shell, a sealing ring sleeved outside the piston is arranged between the piston and the protective shell, one end, far away from the sealing plug, of the piston rod extends into the piston and penetrates out of the piston, and the sealing ring sleeved on the piston rod is arranged between the piston and the piston rod;
the piston rod is provided with a ring platform and a return spring, one end of the return spring is connected with the ring platform, the other end of the return spring is propped against the piston,
the piston rod is a hollow piston rod, one end of the cable is connected with the motor, the other end of the cable penetrates through the piston rod and a first connecting wire tube which is arranged on the sealing plug and stretches out of the sealing plug to penetrate out of the second groove, the second connecting wire tube is connected with a circuit board in the first groove through a second connecting wire tube arranged on the supporting tube mounting seat, a sealing connection device is arranged between the first connecting wire tube and the sealing plug, and a sealing connection device is also arranged between the second connecting wire tube and the supporting tube mounting seat.
The piston, the piston rod and the return spring are arranged to form a pressure equalizing structure, provide a pressure equalizing environment for the valve core and balance the axial force on the valve core; if the pressure equalizing structure is not arranged, the axial force on the valve core is too large, so that the motor cannot drive the screw rod to push the valve core to act.
Preferably, the sealing connection device comprises a hollow conical plugging head and a hollow compression screw;
the sealing connection device arranged between the first connection pipe and the sealing plug is a first sealing connection device, a sealing plug screw hole is formed in the sealing plug, a hollow conical plug and a hollow compression screw of the first sealing connection device are sequentially sleeved outside the first connection pipe, and the hollow conical plug extends into the sealing plug screw hole and is compressed through the hollow compression screw in threaded connection with the sealing plug screw hole;
the sealing connection device arranged between the second connecting wire tube and the supporting tube mounting seat is a second sealing connection device, a supporting tube mounting seat screw hole is formed in the supporting tube mounting seat, a hollow conical plug and a hollow compression screw of the second sealing connection device are sequentially sleeved outside the second connecting wire tube, and the hollow conical plug extends into the supporting tube mounting seat screw hole and is compressed through the hollow compression screw in threaded connection with the supporting tube mounting seat screw hole.
Preferably, a columnar motor mounting seat is axially and fixedly arranged in the protective shell, the motor is fixedly arranged in the motor mounting seat, and the coupler is rotationally connected with the protective shell through a bearing sleeved on the coupler;
one end, far away from the sealing joint, of the protective shell is in threaded connection with the columnar valve seat mounting seat through the joint, the valve seat is fixedly arranged in the valve seat mounting seat, the connecting rod penetrates through the joint and then is fixedly connected with a valve core in the valve seat, and a dynamic sealing element is arranged between the connecting rod and the joint.
Preferably, the oil injection joint, the valve seat mounting seat and the overflowing shell are fixedly connected with the supporting cylinder mounting seat through a pressing plate crossing the second groove, and the pressing plate is connected with the supporting cylinder mounting seat through a screw.
Or preferably, an electromagnetic flow meter is disposed in the second fluid path between the flow passage housing and the valve seat.
Preferably, the cylindrical sliding sleeve is further included, a coaxial central blind hole is arranged in the sliding sleeve, the sliding sleeve is arranged in the supporting cylinder mounting seat in a sliding mode, the central blind hole is communicated with the first fluid channel, two groups of through holes, namely a first group of through holes and a second group of through holes, are arranged on the circumferential surface, corresponding to the sliding sleeve, of the central blind hole, the first group of through holes and the second group of through holes are respectively arranged, the same group of through holes include a plurality of through holes, and the through holes are uniformly distributed along the circumferential direction of;
and a second communication hole is formed in a second fluid channel between the overflowing shell and the valve seat, when the first group of through holes are communicated with the first communication hole, the second group of through holes are blocked with the second communication hole, and when the second group of through holes are communicated with the second communication hole, the first group of through holes are blocked with the first communication hole.
Preferably, be provided with a plurality of axial fixity ring platform on the outer periphery of sliding sleeve, be provided with a plurality of axial fixity annular on the inner wall of support section of thick bamboo mount pad, axial fixity ring platform links to each other with the matching of axial fixity annular.
The utility model discloses simple structure, convenient to use adopts motor drive, turns into the linear motion of case with the rotary motion of motor, can feed back out the aperture size of the first communicating hole of intercommunication first fluid passage and second fluid passage through the position at case place, carries out flow control.
In order to ensure more accurate flow control, the electromagnetic flow meter is arranged on the second fluid channel between the overflowing shell and the valve seat; in addition, in order to ensure the reliability of the device and prevent the failure of action caused by power failure, incapability of working of a motor or blockage of a valve core, a mechanical switch sliding sleeve is adopted for flow control.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a schematic view of a part of the structure of the present invention.
Fig. 3 is another schematic structural diagram of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 2.
Fig. 5 is a sectional view taken along line B-B in fig. 3.
Fig. 6 is a schematic view of the connection relationship between the hollow conical plugging head and the hollow compression screw of the present invention.
Reference numerals: 1-cartridge mounting seat, 2-pressing ring, 3-screw, 4-sealing ring, 5-circuit board, 6-circuit outer tube, 7-hollow conical sealing head, 8-hollow pressing screw, 9-first pressing plate, 10-sealing head, 11-oil injection joint, 12-oil injection screw, 13-piston rod, 14-reset spring, 15-piston, 16-protective shell, 17-motor mounting seat, 18-motor, 19-coupler, 20-bearing, 21-screw rod, 22-moving nut, 23-connecting rod, 24-moving sealing element, 25-joint, 26-valve core, 27-valve seat, 28-valve seat mounting seat, 29-second pressing plate, 30-positioning sleeve, 31-electromagnetic flowmeter, 32-overflowing shell, 33-plug, 34-sliding sleeve and 37-third pressing plate.
Detailed Description
The utility model relates to an active flow control device, which comprises a columnar hollow supporting cylinder mounting seat 1 and a circuit board 5 which drives a motor 18 to act, wherein a holding chamber is arranged on the peripheral surface of the supporting cylinder mounting seat 1, the holding chamber is hermetically connected with the supporting cylinder mounting seat 1, and the holding chamber is axially arranged along the supporting cylinder mounting seat 1;
the accommodating cavity is internally provided with a motor 18 and a hollow valve seat 27, a valve core 26 is arranged in the valve seat 27 in a sliding manner, the valve core 26 is connected with the motor 18 through a reciprocating motion device, one end of the valve seat 27, which is far away from the motor 18, is connected with a columnar hollow overflowing shell 32, one end of the overflowing shell 32, which is far away from the valve seat 27, is provided with a plug 33, liquid outlets are uniformly distributed on the circumferential surface of the overflowing shell 32, and the motor 18 is electrically connected with the circuit board 5;
the cartridge mounting seat 1 is coaxially provided with a first fluid channel, a hollow area of the valve seat 27 is communicated with a hollow area of the overflowing shell 32 to form a second fluid channel, and the first fluid channel is communicated with the second fluid channel through a first communication hole arranged on the valve seat 27 to form a fluid channel. The fluid channel is communicated with the liquid outlet;
the central axis of the first communication hole is perpendicular to the central axis of the valve seat 27, and when the reciprocating device drives the valve core 26 to reciprocate, the valve core 26 reduces or increases the cross-sectional area of the first communication hole communicating the first fluid channel and the second fluid channel.
The reciprocating device comprises a screw rod 21 and a movable nut 22 which is sleeved on the screw rod 21 and is in threaded connection with the screw rod 21, and one end of the screw rod 21 is connected with an output shaft on the motor 18 through a coupling 19;
the movable nut 22 is in a hollow cylindrical shape, an internal thread is arranged on the movable nut 22, one end, far away from the screw rod 21, of the movable nut 22 is fixedly connected with the valve core 26 through a connecting rod 23, and when the screw rod 21 rotates, the movable nut 22 drives the valve core 26 to do reciprocating motion along the axial direction of the valve seat 27.
A cylindrical boss is eccentrically arranged on the circumferential surface of the supporting cylinder mounting seat 1, and a first groove and a second groove are sequentially arranged on the cylindrical boss along the axial direction of the supporting cylinder mounting seat 1;
the circuit board 5 is fixedly arranged in the first groove, the accommodating chamber is arranged in the second groove, a cable on the circuit board 5 penetrates out of the first groove and then extends into the second groove to be connected with the motor 18, and the cable is hermetically connected with the first groove and the second groove;
an external thread is arranged on the supporting cylinder mounting seat 1 between the first groove and the second groove;
the circuit structure is characterized by further comprising a circuit outer pipe 6, wherein the circuit outer pipe 6 is sleeved on the columnar boss and is blocked on the first groove, one end of the circuit outer pipe 6 is in threaded connection with an external thread on the towing rod mounting seat between the first groove and the second groove, the other end of the circuit outer pipe is axially abutted against a step-shaped compression ring 2 sleeved on the columnar boss and the supporting cylinder mounting seat 1, the compression ring 2 is fixedly connected with the columnar boss through a screw 3, and the screw 3 penetrates through the step surface of the compression ring 2 to be connected with the columnar boss;
and sealing rings 4 are arranged between the columnar bosses positioned at two sides of the first groove and the outer circuit pipe 6.
A columnar oil filling joint 11 is arranged in one end, close to the first groove, of the second groove, a sealing plug 10 is fixedly connected to one end of the oil filling joint 11, a columnar protective shell 16 is in threaded connection with the other end of the oil filling joint 11, the accommodating cavity is arranged in the protective shell 16, a stepped through hole is coaxially arranged on the oil filling joint 11, one end of the sealing plug 10 extends into the stepped through hole in the oil filling joint 11, a piston rod 13 is connected to the other end of the stepped through hole, and a sealing ring 4 is arranged between the piston rod 13 and the stepped cylinder hole;
an oil filling hole is formed in the oil filling joint 11, an oil filling screw 12 is plugged in the oil filling hole, and the oil filling hole is communicated with a stepped through hole in the oil filling joint 11;
a piston 15 is arranged in the area between the oil injection joint 11 and the protective shell 16, a sealing ring 4 sleeved outside the piston 15 is arranged between the piston 15 and the protective shell 16, one end, far away from the sealing plug 10, of the piston rod 13 extends into the piston 15 and penetrates out of the piston 15, and the sealing ring 4 sleeved on the piston rod 13 is arranged between the piston 15 and the piston rod 13;
the piston rod 13 is provided with a ring platform and a return spring 14, one end of the return spring 14 is connected with the ring platform, the other end is propped against the piston 15,
the piston rod 13 is a hollow piston rod 13, one end of the cable is connected with the motor 18, the other end of the cable penetrates through the piston rod 13 and a first connecting wire tube which is arranged on the sealing plug 10 and stretches out of the sealing plug 10 to penetrate out of a second groove, the second connecting wire tube is connected with a circuit board 5 in the first groove through a second connecting wire tube arranged on the supporting tube mounting seat 1, a sealing connection device is arranged between the first connecting wire tube and the sealing plug 10, and a sealing connection device is also arranged between the second connecting wire tube and the supporting tube mounting seat 1.
The piston 15, the piston rod 13 and the return spring 14 are arranged to form a pressure equalizing structure, provide a pressure equalizing environment for the valve core 26 and balance the axial force on the valve core 26; if the pressure equalizing structure is not arranged, the axial force applied to the valve core 26 is too large, so that the motor 18 cannot drive the screw rod 21 to push the valve core 26 to act.
The sealing connection device comprises a hollow conical sealing head 7 and a hollow compression screw 8;
the sealing connection device arranged between the first connection pipe and the sealing plug 10 is a first sealing connection device, a screw 3 hole of the sealing plug 10 is arranged on the sealing plug 10, a hollow conical plug 33 and a hollow compression screw 8 of the first sealing connection device are sequentially sleeved outside the first connection pipe, and the hollow conical plug 7 extends into the screw 3 hole of the sealing plug 10 and is compressed by the hollow compression screw 8 in threaded connection with the screw 3 hole of the sealing plug 10;
the sealing connection device arranged between the second connecting wire tube and the supporting tube mounting seat 1 is a second sealing connection device, the supporting tube mounting seat 1 is provided with 3 holes for the screws of the supporting tube mounting seat 1, the hollow conical plug 33 and the hollow compression screw 8 of the second sealing connection device are sequentially sleeved outside the second connecting wire tube, and the hollow conical plug 7 extends into the 3 holes for the screws of the supporting tube mounting seat 1 and is compressed through the hollow compression screw 8 in threaded connection with the 3 holes for the screws of the supporting tube mounting seat 1.
A columnar motor mounting seat 17 is axially and fixedly arranged in the protective shell 16, the motor 18 is fixedly arranged in the motor mounting seat 17, and the coupling 19 is rotatably connected with the protective shell 16 through a bearing 20 sleeved on the coupling 19;
one end of the protective shell 16, which is far away from the sealing joint 25, is in threaded connection with a cylindrical valve seat mounting seat 28 through the joint 25, the valve seat 27 is fixedly arranged in the valve seat mounting seat 28, the connecting rod 23 is fixedly connected with a valve core 26 in the valve seat 27 after penetrating through the joint 25, and a dynamic sealing element 24 is arranged between the connecting rod 23 and the joint 25.
The oil injection joint 11, the valve seat mounting seat 28 and the overflowing shell 32 are fixedly connected with the supporting cylinder mounting seat 1 through a pressing plate crossing the second groove, and the pressing plate is connected with the supporting cylinder mounting seat 1 through a screw 3; specifically, the first pressing plate 9 is used for fixedly connecting the oil injection joint 11 and the supporting cylinder mounting seat 1, the second pressing plate 29 is used for fixedly connecting the valve seat mounting seat 28 and the supporting cylinder mounting seat 1, and the third pressing plate 37 is used for fixedly connecting the overflowing casing 32 and the supporting cylinder mounting seat 1.
An electromagnetic flow meter 31 is disposed in the second fluid path between the overflow housing 32 and the valve seat 27.
The cylindrical sliding sleeve 34 is further included, a coaxial central blind hole is formed in the sliding sleeve 34, the sliding sleeve 34 is arranged in the supporting cylinder mounting seat 1 in a sliding mode, the central blind hole is communicated with the first fluid channel, two groups of through holes, namely a first group of through holes and a second group of through holes, are formed in the peripheral face, corresponding to the sliding sleeve 34, of the central blind hole, the through holes are formed in the first group of through holes and the second group of through holes, the through holes in the same group of through holes comprise a plurality of through holes, and the through holes are;
a second communication hole is formed in a second fluid passage between the overflow housing 32 and the valve seat 27, and when the first group of through holes are communicated with the first communication hole, the second group of through holes are blocked off from the second communication hole, and when the second group of through holes are communicated with the second communication hole, the first group of through holes are blocked off from the first communication hole.
Be provided with a plurality of axial fixity ring platform on the outer periphery of sliding sleeve 34, be provided with a plurality of axial fixity annular on the inner wall of support section of thick bamboo mount pad 1, axial fixity ring platform links to each other with the matching of axial fixity annular.
The utility model discloses articulate in the middle of the tubular column, when the tubular column is put into the target formation down, need the water injection, motor 18 obtains the signal and begins the action, rotate through lead screw 21 and pull back case 26, first fluid passage and second fluid passage communicate through first communicating hole, fluid can pour into the formation into through the second fluid passage, can monitor the size of water injection volume through electromagnetic flowmeter 31 part during the water injection, and real-time feedback, when the injection volume is greater than the value of settlement, motor 18 drives lead screw 21 and rotates, lead screw 21 drives case 26 and moves, realize the regulation of first communicating hole aperture, guarantee to this that the injection volume is near the value of settlement; when the motor 18 fails to work, the sliding sleeve 34 can be pushed to move downwards by a mechanical pulling mode of a running tool, so that the first fluid channel and the second fluid channel are communicated through the second communication hole, and the fluid can be injected into the stratum through the second fluid channel.
When the work of the pipe column in a target stratum is finished and water injection needs to be stopped, the motor 18 obtains a signal to start acting, the valve core 26 is pushed out through the rotation of the screw rod 21, and the first communication hole is blocked; when the motor 18 fails and cannot work, the sliding sleeve 34 can be pulled to move upwards in a mechanical pulling mode of a running tool, so that the first group of through holes and the second group of through holes are staggered with the first communication holes and the second communication holes, plugging is realized, and water injection can be closed by fluid.
In one embodiment, a positioning sleeve 30 is disposed between the valve seat mounting seat 28 and the cartridge mounting seat 1, and the positioning sleeve 30 can perform good axial positioning of the valve seat mounting seat 28 and the cartridge mounting seat 1.
The utility model discloses simple structure, convenient to use adopts the drive of motor 18, turns into the linear motion of case 26 with the rotary motion of motor 18, can feed back out the aperture size of the first communicating hole that communicates first fluid passage and second fluid passage through the position at case 26 place, carries out flow control.
In order to ensure more accurate flow control, the electromagnetic flow meter 31 is arranged on the second fluid channel between the overflowing casing 32 and the valve seat 27; in addition, in order to ensure the reliability of the device and prevent the device from being disabled due to power failure, incapability of operating the motor 18 or jamming of the valve core 26, a mechanical switch sliding sleeve 34 is adopted for flow control.
Claims (10)
1. An active flow control device comprises a columnar hollow supporting tube mounting seat (1) and a circuit board (5) for driving a motor (18) to act, and is characterized in that an accommodating chamber is arranged on the peripheral surface of the supporting tube mounting seat (1), the accommodating chamber is hermetically connected with the supporting tube mounting seat (1), and the accommodating chamber is axially arranged along the supporting tube mounting seat (1);
a motor (18) and a hollow valve seat (27) are arranged in the accommodating cavity, a valve core (26) is arranged in the valve seat (27) in a sliding manner, the valve core (26) is connected with the motor (18) through a reciprocating motion device, one end, far away from the motor (18), of the valve seat (27) is connected with a columnar hollow overflowing shell (32), one end, far away from the valve seat (27), of the overflowing shell (32) is provided with a plug (33), liquid outlets are uniformly distributed on the circumferential surface of the overflowing shell (32), and the motor (18) is electrically connected with the circuit board (5);
a first fluid channel is coaxially arranged on the cartridge mounting seat (1), a hollow area of the valve seat (27) is communicated with a hollow area of the overflowing shell (32) to form a second fluid channel, the first fluid channel and the second fluid channel are communicated through a first communication hole arranged on the valve seat (27) to form a fluid channel, and the fluid channel is communicated with the liquid outlet;
the central axis of the first communicating hole is vertical to the central axis of the valve seat (27), and when the reciprocating motion device drives the valve core (26) to reciprocate, the valve core (26) reduces or increases the cross-sectional area of the first communicating hole, which is communicated with the first fluid channel and the second fluid channel.
2. The active flow control device of claim 1, wherein the reciprocating device comprises a screw rod (21) and a moving nut (22) sleeved on the screw rod (21) and in threaded connection with the screw rod (21), one end of the screw rod (21) is connected with an output shaft on the motor (18) through a coupling (19);
the movable nut (22) is in a hollow cylindrical shape, an internal thread is arranged on the movable nut (22), one end, far away from the screw rod (21), of the movable nut (22) is fixedly connected with the valve core (26) through a connecting rod (23), and when the screw rod (21) rotates, the movable nut (22) drives the valve core (26) to do reciprocating motion along the axial direction of the valve seat (27).
3. The active flow control device according to claim 2, wherein a cylindrical boss is eccentrically arranged on the circumferential surface of the cartridge mounting seat (1), and the cylindrical boss is sequentially provided with a first groove and a second groove along the axial direction of the cartridge mounting seat (1);
the circuit board (5) is fixedly arranged in the first groove, the accommodating chamber is arranged in the second groove, a cable on the circuit board (5) penetrates out of the first groove and then extends into the second groove to be connected with the motor (18), and the cable is hermetically connected with the first groove and the second groove;
an external thread is arranged on the supporting cylinder mounting seat (1) between the first groove and the second groove;
the circuit structure is characterized by further comprising a circuit outer pipe (6), wherein the circuit outer pipe (6) is sleeved on the columnar boss and is blocked on the first groove, one end of the circuit outer pipe (6) is in threaded connection with an external thread on the towing rod mounting seat between the first groove and the second groove, the other end of the circuit outer pipe is axially abutted against a step-shaped compression ring (2) sleeved on the columnar boss and the supporting cylinder mounting seat (1), the compression ring (2) is fixedly connected with the columnar boss through a screw (3), and the screw (3) penetrates through a step surface of the compression ring (2) to be connected with the columnar boss;
sealing rings (4) are arranged between the columnar bosses positioned at two sides of the first groove and the outer circuit pipe (6) in a social mode.
4. An active flow control device according to claim 3, wherein a cylindrical oil injection joint (11) is arranged in one end of the second groove close to the first groove, a sealing plug (10) is fixedly connected to one end of the oil injection joint (11), a cylindrical protective shell (16) is in threaded connection with the other end of the oil injection joint, the accommodating chamber is arranged in the protective shell (16), a stepped through hole is coaxially arranged on the oil injection joint (11), one end of the sealing plug (10) extends into the stepped through hole on the oil injection joint (11), a piston rod (13) is connected to the other end of the stepped through hole, and a sealing ring (4) is arranged between the piston rod (13) and the stepped cylinder hole;
an oil filling hole is formed in the oil filling joint (11), an oil filling screw (12) is plugged in the oil filling hole, and the oil filling hole is communicated with a stepped through hole in the oil filling joint (11);
a piston (15) is arranged in an area between the oil injection joint (11) and the protective shell (16), a sealing ring (4) sleeved outside the piston (15) is arranged between the piston (15) and the protective shell (16), one end, far away from the sealing plug (10), of the piston rod (13) extends into the piston (15) and penetrates out of the piston (15), and the sealing ring (4) sleeved on the piston rod (13) is arranged between the piston (15) and the piston rod (13);
the piston rod (13) is provided with a ring platform and a return spring (14), one end of the return spring (14) is connected with the ring platform, the other end of the return spring (14) is propped against the piston (15),
piston rod (13) are cavity piston rod (13), the one end of cable links to each other with motor (18), and the other end passes piston rod (13) and sets up on sealed end cap (10) and wear out the second recess after stretching out the first connecting wire pipe of sealed end cap (10) to link to each other with circuit board (5) in the first recess through the second connecting wire pipe that sets up on bearing cylinder mount pad (1), be provided with sealing connection device between first connecting wire pipe and sealed end cap (10), also be provided with sealing connection device between second connecting wire pipe and bearing cylinder mount pad (1).
5. An active flow control device according to claim 4, characterised in that the sealing connection means comprises a hollow conical plug head (7) and a hollow compression screw (8);
the sealing connection device arranged between the first connection pipe and the sealing plug (10) is a first sealing connection device, a sealing plug screw hole is formed in the sealing plug (10), a hollow conical plug (33) and a hollow compression screw (8) of the first sealing connection device are sequentially sleeved outside the first connection pipe, and a hollow conical plug (7) extends into the sealing plug screw hole and is compressed through the hollow compression screw (8) in threaded connection with the sealing plug screw hole;
the sealing connection device arranged between the second connecting wire pipe and the supporting tube mounting seat (1) is a second sealing connection device, a supporting tube mounting seat screw hole is formed in the supporting tube mounting seat (1), a hollow conical plug (33) and a hollow compression screw (8) of the second sealing connection device are sequentially sleeved outside the second connecting wire pipe, and a hollow conical plug (7) stretches into the supporting tube mounting seat screw hole and is compressed through the hollow compression screw (8) in threaded connection with the supporting tube mounting seat screw hole.
6. An active flow control device according to claim 5, wherein a cylindrical motor mounting seat (17) is axially and fixedly arranged in the protective housing (16), the motor (18) is fixedly arranged in the motor mounting seat (17), and the coupling (19) is rotatably connected with the protective housing (16) through a bearing (20) sleeved on the coupling (19);
one end, far away from the sealing joint (25), of the protective shell (16) is in threaded connection with a columnar valve seat installation seat (28) through the joint (25), the valve seat (27) is fixedly arranged in the valve seat installation seat (28), the connecting rod (23) penetrates through the joint (25) and then is fixedly connected with a valve core (26) in the valve seat (27), and a movable sealing piece (24) is arranged between the connecting rod (23) and the joint (25).
7. An active flow control device according to claim 6, wherein the oil nipple (11), the valve seat mount (28) and the flow-through housing (32) are fixedly connected to the cartridge mount (1) by a pressure plate across the second recess, the pressure plate being connected to the cartridge mount (1) by a screw (3).
8. An active flow control device according to any of claims 1-7, characterized in that an electromagnetic flow meter (31) is arranged in the second fluid path between the flow-through housing (32) and the valve seat (27).
9. The active flow control device according to claim 8, further comprising a cylindrical sliding sleeve (34), wherein a coaxial central blind hole is formed in the sliding sleeve (34), the sliding sleeve (34) is slidably disposed in the cartridge mounting seat (1), and the central blind hole is communicated with the first fluid channel, two sets of through holes are formed in the peripheral surface of the central blind hole corresponding to the sliding sleeve (34), the two sets of through holes are respectively a first set of through holes and a second set of through holes, the same set of through holes comprises a plurality of through holes, and the through holes are uniformly distributed along the circumferential direction of the sliding sleeve (34);
and a second communication hole is formed in a second fluid channel between the overflowing shell (32) and the valve seat (27), when the first group of through holes are communicated with the first communication hole, the second group of through holes are blocked with the second communication hole, and when the second group of through holes are communicated with the second communication hole, the first group of through holes are blocked with the first communication hole.
10. The active flow control device of claim 9, wherein a plurality of axial fixing ring platforms are disposed on the outer circumferential surface of the sliding sleeve (34), and a plurality of axial fixing ring grooves are disposed on the inner wall of the cartridge mounting seat (1), and the axial fixing ring platforms are connected with the axial fixing ring grooves in a matching manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380383.4U CN210829182U (en) | 2019-08-23 | 2019-08-23 | Active flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921380383.4U CN210829182U (en) | 2019-08-23 | 2019-08-23 | Active flow control device |
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| Publication Number | Publication Date |
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| CN210829182U true CN210829182U (en) | 2020-06-23 |
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| CN201921380383.4U Active CN210829182U (en) | 2019-08-23 | 2019-08-23 | Active flow control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576228A (en) * | 2020-12-10 | 2021-03-30 | 西安洛科电子科技股份有限公司 | Fully-sealed balance pressure water nozzle |
-
2019
- 2019-08-23 CN CN201921380383.4U patent/CN210829182U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576228A (en) * | 2020-12-10 | 2021-03-30 | 西安洛科电子科技股份有限公司 | Fully-sealed balance pressure water nozzle |
| CN112576228B (en) * | 2020-12-10 | 2022-09-20 | 西安洛科电子科技股份有限公司 | Fully-sealed balance pressure water nozzle |
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