CN110905444A - Gas well remote pressure control and adjustment quick-break device and application method thereof - Google Patents
Gas well remote pressure control and adjustment quick-break device and application method thereof Download PDFInfo
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- CN110905444A CN110905444A CN201911153936.7A CN201911153936A CN110905444A CN 110905444 A CN110905444 A CN 110905444A CN 201911153936 A CN201911153936 A CN 201911153936A CN 110905444 A CN110905444 A CN 110905444A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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Abstract
The invention provides a gas well remote pressure control and adjustment quick-break device and a using method thereof, wherein the gas well remote pressure control and adjustment quick-break device comprises an adjusting mechanism, an executing mechanism and a detecting mechanism, wherein the adjusting mechanism is connected with a valve rod of a ball valve, the adjusting mechanism is used for adjusting the flow, the executing mechanism is connected with a connecting shaft ball body of the ball valve, the detecting mechanism is connected with the executing mechanism, the detecting mechanism is used for detecting the pressure, and the executing mechanism is controlled to open or close the ball valve according to the pressure; and the adjusting mechanism, the executing mechanism and the detecting mechanism are all electrically connected with a remote control system. According to the gas well remote pressure control adjustment quick-break device, the valve rod is driven by the adjusting mechanism to move up and down, the size of the annular flow area is changed, the pressure of the natural gas well head is adjusted and controlled within a reasonable range, the ball valve of the natural gas well can be closed emergently by the executing mechanism when the pressure of the natural gas well head changes to a dangerous range, and the safety of the natural gas exploitation process is improved.
Description
Technical Field
The invention belongs to the technical field of natural gas exploitation, and particularly relates to a gas well remote pressure control and adjustment quick-break device and a using method thereof.
Background
With the increase of the development scale of gas fields and the increase of production time, more and more gas wells enter the middle and later production stages, and the intermittent production is the main production mode of the middle and later production stages. The remote well opening and closing water drainage and gas production technology utilizes a remote pressure control well opening and closing device to replace manual intermittence, and the purposes of cost reduction, efficiency improvement and fine management are achieved.
The remote pressure control well switching device used on site at present is a production adjusting device and needs to be matched with a well head safety part emergency cut-off valve for use, so that the well head equipment and the cost of a gas well are increased to a certain extent.
Disclosure of Invention
The invention aims to provide a gas well remote pressure control and adjustment quick-break device, which overcomes the technical problems in the prior art.
The invention also aims to provide a use method of the gas well remote pressure control and adjustment quick-break device, which realizes two functions of a gas well remote pressure control switch and a gathering and transportation pipeline emergency safety cut-off.
Therefore, the technical scheme provided by the invention is as follows:
a gas well remote pressure control and adjustment quick-break device comprises an adjusting mechanism, an executing mechanism and a detecting mechanism, wherein the adjusting mechanism is connected with a valve rod of a ball valve and used for adjusting the flow, the executing mechanism is connected with a connecting shaft ball body of the ball valve, the detecting mechanism is connected with the executing mechanism and used for detecting the pressure, and the executing mechanism is controlled to open or close the ball valve according to the pressure;
and the adjusting mechanism, the executing mechanism and the detecting mechanism are all electrically connected with a remote control system.
The actuating mechanism comprises a balance plate, a limit switch and a reset mechanism, the limit switch is installed on the rotating shaft, the limit switch and the rotating shaft are located on the same horizontal plane, one end of the limit switch is an inclined plane, one end of the balance plate is abutted against the top of the limit switch, the reset mechanism is connected with the inclined plane of the limit switch, and springs are arranged above the two ends of the balance plate;
the limit switch is connected with a driving mechanism in a control mode, and the driving mechanism is connected with a connecting shaft ball body of the ball valve.
The detection mechanism comprises a pressure detection end, a pressure gauge and a pressure sensor, the pressure detection end is installed in the ball valve and used for transmitting detected pressure to the pressure gauge and the pressure sensor, an ejector pin of the pressure sensor acts on the execution mechanism, and the pressure sensor is electrically connected with the remote control system.
Reset mechanism includes reset button, reset block and control rocking arm, and the reset block is connected with reset button bottom, the control rocking arm is connected with reset block middle part, reset block lower extreme meets with limit switch's inclined plane.
The driving mechanism is an electric driving mechanism, the electric driving mechanism comprises a first motor, a second motor, a gear, a rack and an electric driving gear, the gear is meshed with the rack, the first motor drives the gear, the second motor drives the electric driving gear, and the electric driving gear is meshed with an execution gear;
the upper end and the lower end of the rack are both provided with limiting guide sleeves, a vertical beam is mounted on the rack, the end of the vertical beam triggers a forward switch or a reverse switch of the second motor, the electric driving gear is connected with a connecting shaft ball body of the ball valve, and the first motor and/or the second motor are/is electrically connected with a remote control system.
The driving mechanism is a manual driving mechanism, and the manual driving mechanism comprises a manual driving gear, a starting assembly, a rotating handle and a pretightening force storage mechanism;
the rotary handle is connected with the pretightening force storage mechanism and used for providing pretightening force for the pretightening force storage mechanism, the pretightening force storage mechanism is connected with and drives the manual driving gear, the starting assembly is triggered by the limit switch and used for disconnecting or combining the pretightening force storage mechanism and the manual driving gear, and the manual driving gear is connected with a connecting shaft ball body of the ball valve.
The driving mechanism comprises an electric driving gear, a manual driving gear and an execution gear, wherein the electric driving gear and the manual driving gear are respectively directly or indirectly meshed with the execution gear or are directly meshed with one another to be indirectly meshed with one another, and the execution gear is connected with a connecting shaft ball of the ball valve;
the electric driving gear is connected with a first motor, the manual driving gear is connected with a pre-tightening force storage mechanism, the pre-tightening force storage mechanism is connected with a rotating handle, the pre-tightening force storage mechanism and the manual driving gear are disconnected or combined through a starting assembly, the limit switch is used for starting and stopping the first motor and the starting assembly, and the first motor is electrically connected with a remote control system.
The adjusting mechanism comprises a third motor, a driving gear, a driving shaft, a reversing spline, a manual reversing spring, a manual spline and an adjusting gear, the third motor is connected with the driving shaft, the driving shaft is connected with the driving gear through the reversing spline, the driving gear is meshed with a transition gear, the transition gear is meshed with the adjusting gear, and the adjusting gear is connected with a valve rod of the ball valve;
the manual reversing spring sleeve is arranged on the driving shaft, the manual spline sleeve is arranged on the manual reversing spring, the reversing spline is connected with a shifting fork, the top end of the manual spline is connected with a hand wheel, the manual spline is connected with the reversing spline, and the third motor is electrically connected with the remote control system.
The ball valve includes the valve body and locates disk seat, valve barrel, valve rod, valve pocket and the axle spheroid even in the valve body, the valve pocket is sheathe in to the valve pocket, passes through the disc spring with the disk seat down and is connected, it has the discharge orifice to open on the valve pocket, the valve rod can be at the interior up-and-down motion of valve pocket, valve rod and adjustment mechanism threaded connection, even the axle spheroid is located the valve body center, even the axle spheroid is equipped with the through-hole.
A using method of a gas well remote pressure control and adjustment quick-break device is characterized in that a ball valve is installed at a well mouth of natural gas, when a detection mechanism detects that the pressure of the well mouth exceeds a set safety range, a remote control system sends a signal to control an adjustment mechanism to start, a valve rod is driven to move up and down, the size of an annular flow area is changed, and pressure adjustment is achieved; meanwhile, the remote control system sends a signal to control the actuating mechanism to start, so as to drive the connecting shaft ball body to rotate and close the ball valve.
The invention has the beneficial effects that:
according to the gas well remote pressure control adjustment quick-break device, the valve rod is driven by the adjusting mechanism to move up and down, the size of the annular flow area is changed, the pressure of the natural gas well head is adjusted and controlled within a reasonable range, the ball valve of the natural gas well can be closed emergently by the executing mechanism when the pressure of the natural gas well head changes to a dangerous range, and the safety of the natural gas exploitation process is improved.
The remote pressure control and regulation quick-break device can realize the unification of the regulation function and the quick-break function, can replace manual intermittence, saves the consumption of manpower and material resources, and achieves the purposes of cost reduction, efficiency improvement and fine management. The remote pressure control and adjustment quick-break device has wide application prospect in the technical field of gas field exploitation.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a partial schematic view of one embodiment of an actuator;
FIG. 3 is a partial schematic view of one embodiment of a drive mechanism;
FIG. 4 is a schematic view of a first motor of the electric drive mechanism;
FIG. 5 is a schematic view of a portion of the electric drive mechanism;
FIG. 6 is a schematic structural view of one embodiment of a manual drive mechanism;
FIG. 7 is a cross-sectional view of one embodiment of a valve body;
FIG. 8 is a schematic structural view of one embodiment of an adjustment mechanism;
fig. 9 is a schematic structural view of a ball valve.
Description of reference numerals:
1. a valve body; 2. an actuator; 3. an electric drive mechanism; 4. a detection mechanism; 5. a manual drive mechanism; 6. an adjustment mechanism; 7. a connecting shaft sphere; 8. a through hole; 9. a balance plate; 10. a limit switch; 11. a reset mechanism; 12. a reset button; 13. a reset block; 14. controlling the rotating arm; 15. a rotating shaft; 16. an electric drive gear; 17. a manual drive gear; 18. an execution gear; 19. a first motor; 20. a lower pry plate; 21. an upper prying plate; 22. a gear; 23. a rack; 24. a limiting guide sleeve; 25. erecting a beam; 26. a pressure detection end; 27. a pressure gauge; 28. a pressure sensor; 29. starting the component; 30. rotating the handle; 31. a third motor; 32. a drive gear; 33. a reversing spline; 34. a reversing spring; 35. a hand wheel; 36. a manual spline; 37. a drive shaft; 38. a shifting fork; 39. an adjusting gear; 40. a transition gear; 41. a valve cavity; 42. a valve stem; 43. a valve seat; 44. and (3) valve housing.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the gas well remote pressure control regulation quick-break device described in the specification.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the embodiment provides a gas well remote pressure control and adjustment quick-break device, as shown in fig. 1, the device comprises an adjusting mechanism 6, an actuating mechanism 2 and a detecting mechanism 4, wherein the adjusting mechanism 6 is connected with a valve rod 42 of a ball valve, the adjusting mechanism 6 is used for adjusting the flow, the actuating mechanism 2 is connected with a connecting shaft ball body 7 of the ball valve, the detecting mechanism 4 is connected with the actuating mechanism 2, the detecting mechanism 4 is used for detecting the pressure, and the actuating mechanism 2 is controlled to open or close the ball valve according to the pressure;
the adjusting mechanism 6, the executing mechanism 2 and the detecting mechanism 4 are all electrically connected with a remote control system.
Specifically, the working process or the application process of the gas well remote pressure control adjustment quick-break device provided by the embodiment is as follows:
the ball valve is installed at a wellhead of natural gas, the pressure in the valve body 1 is the wellhead pressure of the natural gas well, the detection mechanism 4 detects the wellhead pressure of the natural gas well, and the change condition of the wellhead pressure of the natural gas well can be monitored in real time; when the detection mechanism 4 detects that the pressure of the wellhead exceeds a set safety range, the remote control system sends a signal to control the adjustment mechanism 6 to start, so as to drive the valve rod 42 to move up and down, change the size of the annular flow area and realize pressure adjustment; meanwhile, the remote control system sends a signal to control the actuating mechanism 2 to start, so as to drive the connecting shaft ball body 7 to rotate and close the ball valve.
Example 2:
on the basis of embodiment 1, the embodiment provides a gas well remote pressure control adjustment quick-break device, the actuating mechanism 2 includes a balance plate 9, a limit switch 10 and a reset mechanism 11, the limit switch 10 is installed on a rotating shaft 15, the limit switch 10 and the rotating shaft 15 are located on the same horizontal plane, one end of the limit switch 10 is an inclined plane, one end of the balance plate 9 abuts against the top of the limit switch 10, the reset mechanism 11 is connected with the inclined plane of the limit switch 10, and springs are arranged above two ends of the balance plate 9;
the limit switch 10 is connected with a driving mechanism in a control mode, and the driving mechanism is connected with a connecting shaft ball body 7 of the ball valve.
When the detection mechanism 4 detects abnormal pressure, the detection mechanism 4 acts on the balance plate 9, so that the balance plate moves downwards to trigger the limit switch 10 to close the valve body 1, and the natural gas well is cut off. After the pressure of the wellhead is recovered to be normal, the reset mechanism 11 can be utilized to reset and rotate the limit switch 10, the actuating mechanism 2 is triggered, and the valve body 1 is opened.
Example 3:
on the basis of the embodiment 2, the embodiment provides a gas well remote pressure control and regulation quick-break device, the detection mechanism 4 comprises a pressure detection end 26, a pressure gauge 27 and a pressure sensor 28, the pressure detection end 26 is installed in a ball valve, the pressure detection end 26 is used for transmitting the detected pressure to the pressure gauge 27 and the pressure sensor 28, a thimble of the pressure sensor 28 acts on the actuator 2, and the pressure sensor 28 is electrically connected with a remote control system.
When the pressure sensor 28 detects abnormal pressure, the thimble of the pressure sensor 28 will move downwards, pushing the spring core shaft to move downwards, so that one end of the balance plate 9 moves downwards, losing balance and triggering the limit switch 10. As shown in fig. 2, the balance plate 9 may also be installed by the rotating shaft 15, two ends of the balance plate are respectively provided with a spring to keep the balance plate 9 horizontal, the pressure sensor 28 is located above the spring at the left end of the balance plate 9, when wellhead pressure is received to be abnormal, the thimble of the pressure sensor 28 pushes the spring mandrel at the left side downwards to make the left end of the balance plate 9 move downwards, the lower side at the left end of the limit switch 10 is stressed to make the limit switch 10 rotate anticlockwise, the actuating mechanism 2 is triggered, the valve body 1 is closed, and the natural gas well is cut off.
Example 4:
on the basis of embodiment 2, the embodiment provides a gas well remote pressure control adjustment quick-break device, as shown in fig. 2, the reset mechanism 11 includes a reset button 12, a reset block 13 and a control rotating arm 14, the reset block 13 is connected to the bottom end of the reset button 12, the control rotating arm 14 is connected to the middle of the reset block 13, and the lower end of the reset block 13 is connected to the inclined surface of the limit switch 10.
The right end of limit switch 10 has an inclined plane, and after reset button 12 is pressed, it will move down soon to reset, and reset button 12 drive reset block 13 moves down, and its tip will move along limit switch 10's inclined plane, and then in this process, limit switch 10 will reset clockwise and rotate, and when limit switch 10 rotated the initial position, balance plate 9 and limit switch 10 can resume originated equilibrium state again. When the right end of the limit switch 10 is rotated to the upper side, the inclined surface contacts the lower end of the reset block 13.
The control rotating arm 14 is electrically connected with a remote control system, and remote resetting can be realized by controlling the rotating arm 14.
Example 5:
on the basis of the embodiment 2, the embodiment provides a gas well remote pressure control and adjustment quick-break device, the driving mechanism is an electric driving mechanism 3, the electric driving mechanism 3 comprises a first motor 19, a second motor, a gear 22, a rack 23 and an electric driving gear 16, the gear 22 is meshed with the rack 23, the first motor 19 drives the gear 32, the second motor drives the electric driving gear 16, and the electric driving gear 16 is meshed with an execution gear 18;
the upper end and the lower end of the rack 23 are both provided with limiting guide sleeves 24, the rack 23 is provided with a vertical beam 25, the end part of the vertical beam 25 triggers a forward switch or a reverse switch of the second motor, the electric driving gear 16 is connected with the connecting shaft ball body 7 of the ball valve, and the first motor 19 and/or the second motor are/is electrically connected with a remote control system.
As shown in fig. 4 and 5, when the limit switch 10 rotates counterclockwise and rotates in a reset manner, the right end of the limit switch can respectively start the forward rotation switch or the reverse rotation switch of the first motor 19; in the present embodiment, the forward rotation switch and the reverse rotation switch of the first motor 19 are an upper crow plate 21 and a lower crow plate 20, respectively; the limit switch 10 rotates counterclockwise to trigger the upper pry plate 21, and the reset rotation triggers the lower pry plate 20.
The first motor 19 drives the gear 32 to rotate forward or backward, and the rack 23 engaged with the gear 22 moves upward or downward. Two ends of the rack 23 can be provided with limiting guide sleeves 24, so that the rack 23 has two limit positions, the rack 23 is provided with a vertical beam 25, when the rack 23 is respectively located at the two limit positions, the end part of the vertical beam 25 can respectively trigger a forward switch or a reverse switch of a second motor (not shown in the figure), the second motor can drive the electric driving gear 16 to rotate forward or reversely, one of two rotation modes of the electric driving gear 16 can drive the execution gear 18 to close the valve body 1, and the other can drive the execution gear 18 to open the valve body 1.
Example 6:
on the basis of the embodiment 2, the embodiment provides a gas well remote pressure control and adjustment quick-break device, the driving mechanism is a manual driving mechanism 5, and the manual driving mechanism 5 comprises a manual driving gear 17, a starting assembly 29, a rotating handle 30 and a pretightening force storage mechanism;
the rotating handle 30 is connected with the pretightening force storage mechanism and used for providing pretightening force for the pretightening force storage mechanism, the pretightening force storage mechanism is connected with and drives the manual driving gear 17, the starting assembly 29 is triggered through the limit switch 10, the starting assembly 29 is used for disconnecting or combining the pretightening force storage mechanism and the manual driving gear 17, and the manual driving gear 17 is connected with the connecting shaft ball body 7 of the ball valve.
As shown in fig. 6, the rotary handle 30 provides a preload force for the preload force storage mechanism, the preload force storage mechanism is connected to and drives the manual driving gear 17, and the actuating assembly 29 can disconnect or connect the preload force storage mechanism and the manual driving gear 17; counterclockwise rotation of limit switch 10 enables actuation assembly 29 to engage the preload storage mechanism to the manual drive gear 17. Wherein the actuating assembly 29 is prior art.
As shown in fig. 7, the coupling sphere 7 is located at the center of the ball valve body 1, left and right sealing valve seats 43 are respectively arranged on the left and right sides of the coupling sphere 7, the left and right sealing valve seats 43 are fittingly installed in the valve body 1 through a shaft hole, and one end faces of the left and right sealing valve seats 43 are attached to the spherical surface of the coupling sphere 7 through a spring.
The connecting shaft ball body 7 is provided with a through hole 8, and the size of the through hole 8 is the same as the aperture of the valve body 1 and is concentric with the valve body; the mounting shafts of the connecting shaft spheres 7 are distributed at two sides at 180 degrees. The mounting shaft of the coupling sphere 7 is perpendicular to the through hole 8, and the mounting shaft of the coupling sphere 7 and the execution gear 18 rotate coaxially and synchronously.
Example 7:
on the basis of the embodiment 2, the embodiment provides a gas well remote pressure control adjustment quick-break device, the driving mechanism comprises an electric driving gear 16, a manual driving gear 17 and an execution gear 18, the electric driving gear 16 and the manual driving gear 17 are respectively directly or indirectly meshed with the execution gear 18 or are directly meshed with one another, and the execution gear 18 is connected with a connecting shaft sphere 7 of a ball valve;
the electric driving gear 16 is connected with a first motor 19, the manual driving gear 17 is connected with a pre-tightening force storage mechanism, the pre-tightening force storage mechanism is connected with a rotating handle 30, the pre-tightening force storage mechanism and the manual driving gear 17 are disconnected or combined through a starting assembly 29, the limit switch 10 is used for starting and stopping the first motor 19 and the starting assembly 29, and the first motor 19 is electrically connected with a remote control system.
Both the electric drive gear 16 and the manual drive gear 17 may directly mesh with the actuation gear 18; one can be directly meshed with the executing gear 18, and the other can be indirectly meshed with the executing gear 18; or both are indirectly engaged with the actuation gear 18. As shown in fig. 3, both the electric drive gear 16 and the manual drive gear 17 drive-drive the execution gear 18 through the multi-stage gear 22.
The rotation of the executing gear 18 can directly control the opening or closing of the valve body 1, the executing gear 18 can be directly connected with the connecting shaft ball body 7 of the ball valve and drives the connecting shaft ball body 7 to rotate, and the connecting shaft ball body 7 can rotate at different positions in the rotating process, so that the valve body 1 is in different states of closing or opening.
When the gas well remote pressure control quick-break device is in a normal power-on state, the limit switch 10 rotates anticlockwise to start the electric driving mechanism 3, and the electric driving mechanism 3 controls the electric driving gear 16 to close the valve body 1; when the gas well remote pressure control quick-break device is in a power-off state, the limit switch 10 rotates anticlockwise to start the manual driving mechanism 5, and the pretightening force of the manual driving mechanism 5 can control the manual driving gear 17 to close the valve body 1.
Example 8:
on the basis of embodiment 2, the present embodiment provides a gas well remote pressure control adjustment quick-break device, as shown in fig. 8, the adjustment mechanism 6 includes a third motor 31, a driving gear 32, a driving shaft 37, a reversing spline 33, a manual reversing spring 34, a manual spline 36 and an adjustment gear 39, the third motor 31 is connected with the driving shaft 37, the driving shaft 37 is connected with the driving gear 32 through the reversing spline 33, the driving gear 32 is engaged with a transition gear 40, the transition gear 40 is engaged with the adjustment gear 39, and the adjustment gear 39 is connected with a valve stem 42 of a ball valve;
the manual reversing spring 34 is sleeved on the driving shaft 37, the manual spline 36 is sleeved on the manual reversing spring 34, the reversing spline 33 is connected with the shifting fork 38, the top end of the manual spline 36 is connected with the hand wheel 35, the manual spline 36 is connected with the reversing spline 33, and the third motor 31 is electrically connected with a remote control system.
The electric adjusting function is realized under the normal working state. The manual reversing spring 34 is abutted against the manual spline 36 and the driving shaft 37 under the action of a pre-tightening force, so that the driving motor drives the driving shaft 37, the driving shaft 37 drives the driving gear 32 through the reversing spline 33, then drives the transition gear 40, and the transition gear 40 drives the adjusting gear 39 to enable the valve rod 42 to move up and down to perform electric adjustment.
When manual adjustment is needed, the shifting fork 38 is rotated, the reversing spline 33 overcomes the pretightening force of the reversing spring 34 to be meshed with the manual gear 22, after the hand wheel 35 is rotated, the manual spline 36 drives the reversing spline 33, the reversing spline 33 drives the driving gear 32 to rotate, the driving gear 32 enables the adjusting gear 39 to rotate through the transition gear 40 meshed with the driving gear, and the valve rod 42 moves up and down to realize manual adjustment.
Example 9:
on the basis of embodiment 2, this embodiment provides a gas well remote pressure control adjusts device that sharply cuts off, the ball valve includes valve body 1 and locates disk seat 43, valve barrel 44, valve rod 42, valve pocket 41 and the axle spheroid 7 even in the valve body 1, support valve pocket 41 on the valve barrel 44, pass through the dish spring with valve seat 43 down and be connected, it has the discharge orifice to open on the valve barrel 44, valve rod 42 can be in the interior up-and-down motion of valve pocket 41, valve rod 42 and 6 threaded connection of adjustment mechanism, axle spheroid 7 is located valve body 1 center even, axle spheroid 7 is equipped with through-hole 8 even.
As shown in fig. 9, the valve rod 42 is movable up and down in the valve chamber 41, and the valve rod 42 is threaded so that the adjustment gear 39 is rotated. The up and down movement of valve stem 42 is accomplished by threads engaged with valve stem 42 to accomplish the adjustment function. The head of the valve rod 42 is provided with an overflowing channel, and the end part of the valve rod 42 is provided with a taper to increase the annular area between the valve rod and the valve sleeve 44.
The valve sleeve 44 is abutted against the valve cavity 41, the lower part of the valve sleeve is connected with the valve seat 43 through a disc spring, the valve sleeve 44 is provided with a through hole, natural gas enters the valve body 1 through the inlet of the valve body 1 and then enters the annular space between the valve seat 43 and the valve rod 42 through the through hole of the valve sleeve 44, and the annular flow area of the valve sleeve 44 and the valve core is changed along with the up-and-down movement of the valve rod 42, so that the purpose of pressure regulation is realized.
The lower part of the valve sleeve 44 is provided with a positioning step, the positioning step is provided with a sealing groove, and after a sealing ring is arranged in the sealing groove, sealing is realized between the valve sleeve 44 and the valve body 1. The lower end of the valve sleeve 44 is provided with a disc spring groove, a disc spring is placed in the disc spring groove, the valve sleeve 44 is elastically connected with the valve seat 43, better sealing of the valve seat 43 is achieved, and a step with taper is arranged in the valve sleeve 44.
The upper part of the valve seat 43 is pressed from the valve sleeve 44, so that the valve seat 43 can be tightly attached to the coupling shaft ball body 7, and the valve seat 43 is in soft sealing contact with the coupling shaft ball body 7, so that the purpose of sealing is a second sealing.
The inner hole of the valve sleeve 44 is provided with a step with taper, the end part of the valve rod 42 is also provided with a step with the same taper, when the valve rod 42 moves downwards in the valve sleeve 44, the valve rod 42 is propped against the step of the valve sleeve 44, the purpose of limiting the valve rod 42 is achieved, and meanwhile, the first sealing is also realized.
The lower end part of the valve cavity 41 is connected with the valve seat 43, the inner hole and the excircle of the lower end part are provided with sealing grooves, and sealing rings are arranged in the sealing grooves, so that sealing between the valve cavity 41 and the valve body 1 and sealing between the valve cavity 41 and the valve rod 42 can be realized.
Example 10:
the embodiment provides a using method of a gas well remote pressure control and adjustment quick-break device, wherein a ball valve is installed at a wellhead of natural gas, when a detection mechanism 4 detects that the pressure of the wellhead exceeds a set safety range, a remote control system sends a signal to control an adjustment mechanism 6 to start, a valve rod 42 is driven to move up and down, the size of an annular flow area is changed, and pressure adjustment is realized; meanwhile, the remote control system sends a signal to control the actuating mechanism 2 to start, so as to drive the connecting shaft ball body 7 to rotate and close the ball valve.
In conclusion, the gas well remote pressure control adjustment quick-break device provided by the embodiment can realize remote pressure control adjustment on and off of a natural gas well, control the pressure of the natural gas well head within a reasonable range, and can emergently close the natural gas well when the pressure of the natural gas well head changes to a dangerous range, so that the safety in the natural gas exploitation process is improved. The remote pressure control and regulation quick-break device can realize the unification of the regulation function and the quick-break function, can replace manual intermittence, saves the consumption of manpower and material resources, and achieves the purposes of cost reduction, efficiency improvement and fine management. The remote pressure control and adjustment quick-break device has wide application prospect in the technical field of gas field exploitation.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (10)
1. The utility model provides a gas well remote pressure control adjusts device that suddenly cuts off which characterized in that: the ball valve comprises an adjusting mechanism (6), an executing mechanism (2) and a detecting mechanism (4), wherein the adjusting mechanism (6) is connected with a valve rod (42) of the ball valve, the adjusting mechanism (6) is used for adjusting the flow, the executing mechanism (2) is connected with a connecting shaft ball body (7) of the ball valve, the detecting mechanism (4) is connected with the executing mechanism (2), and the detecting mechanism (4) is used for detecting pressure and controlling the executing mechanism (2) to open or close the ball valve according to the pressure;
the adjusting mechanism (6), the executing mechanism (2) and the detecting mechanism (4) are all electrically connected with a remote control system.
2. The gas well remote pressure control and regulation quick-break device as claimed in claim 1, characterized in that: the actuating mechanism (2) comprises a balance plate (9), a limit switch (10) and a reset mechanism (11), the limit switch (10) is installed on a rotating shaft (15), the limit switch (10) and the rotating shaft (15) are located on the same horizontal plane, one end of the limit switch (10) is an inclined plane, one end of the balance plate (9) abuts against the top of the limit switch (10), the reset mechanism (11) is connected with the inclined plane of the limit switch (10), and springs are arranged above two ends of the balance plate (9);
the limit switch (10) is connected with a driving mechanism in a control mode, and the driving mechanism is connected with a connecting shaft ball body (7) of the ball valve.
3. The gas well remote pressure control and regulation quick-break device as claimed in claim 1, characterized in that: detection mechanism (4) are including pressure detection end (26), manometer (27) and pressure sensor (28), install in the ball valve pressure detection end (26), pressure detection end (26) are used for transmitting the pressure that detects for manometer (27) and pressure sensor (28), the thimble of pressure sensor (28) acts on actuating mechanism (2), pressure sensor (28) are connected with remote control system electricity.
4. The gas well remote pressure control adjustment quick-break device as claimed in claim 2, characterized in that: reset mechanism (11) are including reset button (12), reset block (13) and control rocking arm (14), and reset block (13) are connected with reset button (12) bottom, control rocking arm (14) are connected with reset block (13) middle part, reset block (13) lower extreme meets with limit switch (10) inclined plane.
5. The gas well remote pressure control adjustment quick-break device as claimed in claim 2, characterized in that: the driving mechanism is an electric driving mechanism (3), the electric driving mechanism (3) comprises a first motor (19), a second motor, a gear (22), a rack (23) and an electric driving gear (16), the gear (22) is meshed with the rack (23), the first motor (19) drives the gear (32), the second motor drives the electric driving gear (16), and the electric driving gear (16) is meshed with an execution gear (18);
the ball valve is characterized in that limiting guide sleeves (24) are arranged at the upper end and the lower end of the rack (23), a vertical beam (25) is installed on the rack (23), a forward switch or a reverse switch of the second motor is triggered by the end portion of the vertical beam (25), the electric driving gear (16) is connected with a connecting shaft ball body (7) of the ball valve, and the first motor (19) and/or the second motor are/is electrically connected with a remote control system.
6. The gas well remote pressure control adjustment quick-break device as claimed in claim 2, characterized in that: the driving mechanism is a manual driving mechanism (5), and the manual driving mechanism (5) comprises a manual driving gear (17), a starting assembly (29), a rotating handle (30) and a pretightening force storage mechanism;
the rotary handle (30) is connected with the pretightening force storage mechanism and used for providing pretightening force for the pretightening force storage mechanism, the pretightening force storage mechanism is connected with and drives the manual driving gear (17), the starting assembly (29) is triggered through the limit switch (10), the starting assembly (29) is used for disconnecting or combining the pretightening force storage mechanism and the manual driving gear (17), and the manual driving gear (17) is connected with a connecting shaft ball body (7) of the ball valve.
7. A gas well remote pressure control regulation quick-break device as claimed in claim 2, wherein the driving mechanism comprises an electric driving gear (16), a manual driving gear (17) and an execution gear (18), the electric driving gear (16) and the manual driving gear (17) are respectively directly or indirectly meshed with the execution gear (18) or are respectively directly meshed with one another and indirectly meshed with one another, and the execution gear (18) is connected with a connecting shaft sphere (7) of a ball valve;
the electric driving gear (16) is connected with a first motor (19), the manual driving gear (17) is connected with a pre-tightening force storage mechanism, the pre-tightening force storage mechanism is connected with a rotating handle (30), the pre-tightening force storage mechanism and the manual driving gear (17) are disconnected or combined through a starting assembly (29), the limit switch (10) is used for starting and stopping the first motor (19) and the starting assembly (29), and the first motor (19) is electrically connected with a remote control system.
8. The gas well remote pressure control adjustment quick-break device as claimed in claim 2, characterized in that: the method is characterized in that: the adjusting mechanism (6) comprises a third motor (31), a driving gear (32), a driving shaft (37), a reversing spline (33), a manual reversing spring (34), a manual spline (36) and an adjusting gear (39), wherein the third motor (31) is connected with the driving shaft (37), the driving shaft (37) is connected with the driving gear (32) through the reversing spline (33), the driving gear (32) is meshed with a transition gear (40), the transition gear (40) is meshed with the adjusting gear (39), and the adjusting gear (39) is connected with a valve rod (42) of the ball valve;
the manual reversing spring (34) is sleeved on the driving shaft (37), the manual spline (36) is sleeved on the manual reversing spring (34), the reversing spline (33) is connected with a shifting fork (38), the top end of the manual spline (36) is connected with a hand wheel (35), the manual spline (36) is connected with the reversing spline (33), and the third motor (31) is electrically connected with the remote control system.
9. The gas well remote pressure control adjustment quick-break device as claimed in claim 2, characterized in that: the ball valve includes valve body (1) and locates disk seat (43), valve barrel (44), valve rod (42), valve pocket (41) and links axle spheroid (7) in valve body (1), to valve pocket (41) on valve barrel (44), be connected through the dish spring with disk seat (43) down, it has the discharge orifice to open on valve barrel (44), valve rod (42) can be in valve pocket (41) up-and-down motion, valve rod (42) and adjustment mechanism (6) threaded connection, it is located valve body (1) center to link axle spheroid (7), it is equipped with through-hole (8) to link axle spheroid (7).
10. The use method of the gas well remote pressure control and regulation quick-break device as claimed in claim 1, characterized in that: the ball valve is installed at a wellhead of natural gas, when the detection mechanism (4) detects that the wellhead pressure exceeds a set safety range, the remote control system sends a signal to control the adjustment mechanism (6) to start, the valve rod (42) is driven to move up and down, the size of the annular flow area is changed, and pressure adjustment is achieved; meanwhile, the remote control system sends a signal to control the actuating mechanism (2) to start, so as to drive the connecting shaft ball body (7) to rotate and close the ball valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153936.7A CN110905444B (en) | 2019-11-22 | 2019-11-22 | Remote control pressure regulating emergency breaking device for gas well and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153936.7A CN110905444B (en) | 2019-11-22 | 2019-11-22 | Remote control pressure regulating emergency breaking device for gas well and application method thereof |
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| CN110905444B CN110905444B (en) | 2023-07-25 |
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Also Published As
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|---|---|
| CN110905444B (en) | 2023-07-25 |
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