CN215057237U - Ground blowout prevention driving device of screw pump - Google Patents
Ground blowout prevention driving device of screw pump Download PDFInfo
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- CN215057237U CN215057237U CN202120464384.8U CN202120464384U CN215057237U CN 215057237 U CN215057237 U CN 215057237U CN 202120464384 U CN202120464384 U CN 202120464384U CN 215057237 U CN215057237 U CN 215057237U
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- outlet pipe
- oil outlet
- baffle
- screw pump
- gland
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Abstract
The utility model discloses a screw pump ground blowout prevention driving device, which comprises a motor, a main shaft box, a transmission system, an anti-reverse device, a sealing packing and a first oil outlet pipe, wherein the top end port of the sealing packing is connected with a gland, the gland is provided with a through hole for a light rod to pass through, and a baffle and an elastic mechanism for driving the baffle to swing upwards to shield the through hole are hinged in the gland; the check valve is arranged on the first oil outlet pipe, when the polished rod is broken and falls off and no polished rod is sealed in the sealing packing, the baffle in the gland swings upwards under the action of the elastic mechanism, so that the well head is automatically closed, the pressure of the well head is increased, the sealing pressure of the baffle is increased accordingly, and the sealing is always in the optimal state; the check valve on the oil outlet pipe effectively prevents the backflow of crude oil and natural gas in the ground pipeline and effectively prevents the occurrence of environmental pollution.
Description
Technical Field
The utility model relates to an oil field equipment field, in particular to screw pump ground prevents spouting drive arrangement.
Background
The ground-driven screw pump oil production system transfers power to the underground screw pump through the sucker rod and the polished rod to produce crude oil to the ground. The sealing between the packing and the polish rod of the ground driving device is an important component for preventing oil gas from overflowing in the oil extraction process, but if the polish rod is broken and slides down, a large amount of oil gas can be leaked, and well site pollution is caused.
At present screw pump drive arrangement still does not possess disconnected pole and prevents spouting the function, and when the polished rod takes place fatigue fracture, the breakpoint lower part can fall into in the oil well, leads to the packing to seal inefficacy, and oil gas in the oil collecting line also can flow backwards simultaneously, and well liquid is spout along packing department, pollutes well head equipment and environment, seriously influences going on smoothly of producing oil.
Disclosure of Invention
The utility model discloses the technical problem that will solve is:
the ground blowout prevention driving device of the screw pump has a rod breakage blowout prevention function, and can effectively prevent dangerous situations and environmental pollution of out-of-control well mouths caused by liquid blowout in wells when a polished rod is broken and slipped off.
In order to solve the technical problem, the technical scheme of the utility model is that:
a ground blowout prevention driving device of a screw pump comprises a motor, a spindle box, a transmission system, an anti-reverse device, a sealing packing and a first oil outlet pipe, wherein a top end port of the sealing packing is connected with a gland, a through hole through which a light rod can pass is formed in the gland, and a baffle and an elastic mechanism for driving the baffle to swing upwards to shield the through hole are hinged in the gland; the first oil outlet pipe is provided with a check valve.
The motor, the main shaft box and the transmission system are used for supporting and rotating the main shaft so as to provide power and proper rotating speed for the down-hole screw pump; the anti-reverse device is used for preventing the high-speed reverse rotation of the rod column in the shutdown process; the function of the sealing packing is to prevent produced fluid from leaking to the well site.
Preferably, the baffle is provided with a convex part which can be clamped in the through hole, and the convex part can be cylindrical.
Preferably, the convex part is rotatably provided with a guide wheel for guiding the rotation of the polished rod, the guide wheel can be parallel to the polished rod along with the downward swing of the baffle, and the guide wheel can be rotatably arranged on the baffle through a fixing shaft.
Preferably, the top surface of the baffle is provided with an annular groove, the annular groove is arranged around the protruding part, and the sealing ring can be clamped in the annular groove.
The gland comprises a barrel connected to a top port of the sealing packing, a cover plate is connected to the top of the barrel in a screwed mode, a through hole is formed in the cover plate, the baffle is hinged to the area between the barrel and the cover plate, and the elastic mechanism can be composed of a rotating shaft fixedly installed in the gland and a torsion bar spring installed on the rotating shaft.
Preferably, the check valve includes, ball sealer, second go out oil pipe, and the lumen that first goes out oil pipe passes through the sealed packing of oil-out intercommunication, and the intracavity of first oil pipe is equipped with the ball sealer that can hide the oil-out, and the endotheca of first oil pipe is equipped with the second and goes out oil pipe, and the second goes out the intraductal spacing arch that is used for spacing ball sealer that is equipped with of oil.
Preferably, the second oil outlet pipe is provided with a communication opening, and the opening is communicated with the first oil outlet pipe and the second oil outlet pipe.
Preferably, the second oil outlet pipe is screwed in the first oil outlet pipe.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
because the utility model discloses well screw pump ground prevents spouting drive arrangement, including motor, headstock, transmission system, anti-reverse device, sealed packing, first oil outlet pipe, the top end port of sealed packing is connected with the gland, is equipped with the through-hole that can supply the polished rod to pass through on the gland, and articulated in the gland have the baffle and drive the baffle and upwards swing the elastic mechanism who shields the through-hole; the first oil outlet pipe is provided with a check valve.
When the polished rod is broken and falls off and no polished rod is sealed in the sealing packing, the baffle in the gland swings upwards under the action of the elastic mechanism, so that the wellhead is automatically closed, the wellhead pressure rises, and the sealing pressure of the baffle rises along with the pressure, so that the sealing is always in the optimal state; the check valve on the oil outlet pipe effectively prevents the backflow of crude oil and natural gas in the ground pipeline and effectively prevents the occurrence of environmental pollution.
Because the baffle is provided with the bulge which can be clamped in the through hole, the sealing performance is better, and the baffle is prevented from being incompletely shielded.
Because the guide wheel that is used for the polished rod to rotate the direction is installed in the rotation on the bellying, and the guide wheel can be parallel with the polished rod along with baffle lower hem, and guide wheel accessible fixed axle rotates and installs on the baffle for the guide wheel rotates along with the rotation of polished rod, reduces the friction, reduces the wearing and tearing of polished rod in the course of the work, improves work efficiency.
Because the sealing washer is installed at the top of baffle, the ring channel of installation sealing washer is equipped with on the top of baffle for sealing performance is better, prevents to leak.
Because the gland is including connecting the barrel on the top port of sealed packing, and the top spiro union of barrel has the apron, and the through-hole is located the apron, and the baffle articulates in the region between barrel and apron, and elastic mechanism can be by the pivot of fixed mounting in the gland and install the torsion bar spring in this pivot and constitute for the structure is easily dismantled, and is good to install, is convenient for maintain and change.
Because be equipped with the intercommunication opening on the second oil pipe, the first oil pipe of opening intercommunication goes out oil pipe and second, guarantees out oil quantity, prevents out oil pipe not circulation, improves oil recovery quality.
Because the second oil outlet pipe is screwed in the first oil outlet pipe, the check valve is easy to disassemble and easy to install.
To sum up, the utility model provides a polished rod fracture landing lead to a large amount of oil gas to leak, cause the problem of well site pollution, avoided because of the polished rod takes off the crude oil loss and the environmental pollution scheduling problem that cause absolutely, reduce the wearing and tearing of polished rod in the course of the work, improve sealing performance, prevent to leak, easily dismantle, the good installation guarantees the oil output, prevents that oil pipe from not circulating, improves the oil recovery quality.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a screw pump ground blowout prevention driving device according to the present invention and a partially enlarged view of a gland;
FIG. 2 is a partial schematic view of the baffle of FIG. 1 in a downswing condition;
fig. 3 is an enlarged view of the check valve of fig. 1.
In the figure: 1-motor, 2-headstock, 3-transmission system, 4-anti-reverse device, 5-sealing packing, 6-first oil outlet pipe, 7-polish rod, 50-gland, 51-baffle, 52-through hole, 53-elastic mechanism, 54-sealing ring, 55-cylinder, 56-cover plate, 510-bulge, 511-guide wheel, 530-rotating shaft, 531-torsion bar spring, 60-check valve, 600-sealing ball, 601-second oil outlet pipe, 602-limiting bulge and 603-communication opening.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the screw pump ground blowout prevention driving device comprises a motor 1, a spindle box 2, a transmission system 3, an anti-reverse device 4, a sealing packing 5 and a first oil outlet pipe 6, wherein a top end port of the sealing packing 5 is connected with a gland 50, the gland 50 is provided with a through hole 52 through which a polish rod 7 can pass, and a baffle plate 51 and an elastic mechanism 53 for driving the baffle plate 51 to swing upwards to shield the through hole 52 are hinged in the gland 50; the first oil outlet pipe 6 is provided with a check valve 60, the outlet end of the first oil outlet pipe 6 is connected with a hose, and the other end of the hose is connected with an oil storage device.
When the polish rod 7 is in a normal working state, the baffle 51 is in a downward swinging state and is located at the position shown in fig. 2, the elastic mechanism 53 is in a power storage state, the check valve 60 is in a closed state, and oil flows out from the first oil outlet pipe.
When the polish rod 7 is broken and falls, the sealing packing 55 fails, the baffle plate 51 swings upwards under the action of the elastic mechanism 53, the baffle plate 51 shields the through hole 52 and is located at the position shown by the partial enlarged view in fig. 1, the pressure of the wellhead rises, the sealing pressure of the baffle plate 51 rises accordingly, the sealing is always in the optimal state, oil in the first oil outlet pipe 6 flows back, the check valve is opened, the oil outlet is sealed, and the problems of crude oil loss, environmental pollution and the like caused by breakage and falling of the polish rod 7 are solved.
As shown in the enlarged view of the part in fig. 1, as the utility model discloses a further improvement, be equipped with on the baffle 51 can block the bellying 510 of joining in marriage in through-hole 52, bellying 510 is cylindrical structure, and bellying 510 and baffle 51 are integrated into one piece, and when the baffle upswing, bellying 510 and through-hole 52 block for the cooperation position is more accurate, improves sealing performance, prevents the fluid splash.
As shown in fig. 1 and fig. 2 together, as a further improvement of the present invention, a guide wheel 511 for guiding rotation of the polish rod 7 is rotatably mounted on the boss 510, the guide wheel 511 can be parallel to the axis of the polish rod 7 as the baffle 51 swings down, the guide wheel 511 can be rotatably mounted on the baffle 51 through a fixed shaft, when the polish rod 7 normally works and the baffle 51 is in a swinging down state, the guide wheel 511 rotates along with the rotation of the polish rod 7, so as to reduce friction when the polish rod 7 works, thereby reducing loss of the polish rod 7.
As shown in the enlarged partial view of fig. 1, as a further improvement of the present invention, the top surface of the baffle 51 is provided with an annular groove, the annular groove is disposed around the protrusion 510, and the sealing ring 54 can be clamped in the annular groove.
As shown in the enlarged partial view of fig. 1, as a further improvement of the present invention, the gland 50 includes a cylinder 55 connected to the top port of the packing 5, the top of the cylinder 55 is screwed with a cover plate 56, the through hole 52 is located on the cover plate 56, the baffle 51 is hinged in the area between the cylinder 55 and the cover plate 56, and the elastic mechanism 53 may be composed of a rotating shaft 530 fixedly installed in the gland 50 and a torsion bar spring 531 installed on the rotating shaft 530.
As shown in fig. 3, as the utility model discloses a further improvement, check valve 60 includes, ball sealer 600, second go out oil pipe 601, and first oil pipe 6's lumen passes through the sealed packing 5 of oil-out intercommunication, and first oil pipe 6's intracavity is equipped with the ball sealer 600 that can hide the oil-out, and ball sealer 600's material can be nylon, and first oil pipe 6 endotheca is equipped with the second and goes out oil pipe 601, is equipped with the spacing arch 602 that is used for spacing ball sealer 600 in the second goes out oil pipe 601. When the polish rod 7 is in a normal working state, the sealing ball 600 in the check valve 60 rolls to the position of the limiting protrusion 602 in the second oil outlet pipe 601 under the impact of oil, and the oil flows out of the second oil outlet pipe 601. When the polished rod 7 breaks and drops, the sealing packing 5 fails, oil in the first oil outlet pipe 5 flows back, and the sealing ball 600 rolls to the oil outlet of the first oil outlet pipe under the action of the liquid pressure in the second oil outlet pipe 601, so that an oil outlet is sealed, the oil outlet is sealed under the action of the return pressure, and the problems of crude oil loss, environmental pollution and the like caused by the broken and falling of the polished rod 7 are solved.
As shown in fig. 3, as the utility model discloses a further improvement, be equipped with on the second oil pipe 601 and communicate opening 603, the first oil pipe 6 of opening intercommunication and second oil pipe 601, when polished rod 7 is in normal operating condition, fluid flows from the intercommunication opening part, improves oil output, improves work efficiency, avoids losing because of the little fluid that causes of circulation.
As shown in fig. 3, as a further improvement of the present invention, the second oil outlet pipe 601 is screwed into the first oil outlet pipe 6, and the installation, maintenance and replacement of the check valve 60 in the first oil outlet pipe 6 are more convenient.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A ground blowout prevention driving device of a screw pump comprises a motor, a main shaft box, a transmission system, an anti-reversion device, a sealing packing and a first oil outlet pipe, and is characterized in that,
the top end port of the sealing packing is connected with a gland, the gland is provided with a through hole through which a light rod can pass, and a baffle and an elastic mechanism for driving the baffle to swing upwards to shield the through hole are hinged in the gland;
and the first oil outlet pipe is provided with a check valve.
2. The ground blowout prevention drive of a screw pump according to claim 1, wherein the retainer has a projection that is snap-fit into the through hole.
3. A ground anti-spray drive for a screw pump according to claim 2, wherein said boss is rotatably mounted with a guide for guiding rotation of said polish rod.
4. The ground blowout prevention drive of a screw pump according to claim 2, wherein the top of the baffle is fitted with a seal.
5. A screw pump ground blowout prevention drive according to any one of claims 1 to 4, wherein the gland comprises a barrel connected to a top port of the packing set, a cover plate is screwed to a top of the barrel, the through hole is provided in the cover plate, and the flapper is hinged in an area between the barrel and the cover plate.
6. The ground blowout prevention driving device of the screw pump according to any one of claims 1 to 4, wherein the check valve comprises a sealing ball and a second oil outlet pipe, a pipe cavity of the first oil outlet pipe is communicated with the sealing packing through an oil outlet, the sealing ball capable of covering the oil outlet is arranged in the pipe cavity of the first oil outlet pipe, the second oil outlet pipe is sleeved in the first oil outlet pipe, and a limiting protrusion for limiting the sealing ball is arranged in the second oil outlet pipe.
7. The screw pump ground blowout prevention drive according to claim 6, wherein the second oil outlet pipe is provided with a communication opening, and the communication opening communicates the first oil outlet pipe with the second oil outlet pipe.
8. The screw pump ground blowout prevention drive according to claim 6, wherein the second outlet pipe is screwed into the first outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464384.8U CN215057237U (en) | 2021-03-04 | 2021-03-04 | Ground blowout prevention driving device of screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120464384.8U CN215057237U (en) | 2021-03-04 | 2021-03-04 | Ground blowout prevention driving device of screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215057237U true CN215057237U (en) | 2021-12-07 |
Family
ID=79254765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120464384.8U Active CN215057237U (en) | 2021-03-04 | 2021-03-04 | Ground blowout prevention driving device of screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215057237U (en) |
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2021
- 2021-03-04 CN CN202120464384.8U patent/CN215057237U/en active Active
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