CN214007138U - Pumping unit polished rod eccentric wear alarm trigger device - Google Patents
Pumping unit polished rod eccentric wear alarm trigger device Download PDFInfo
- Publication number
- CN214007138U CN214007138U CN202022964113.7U CN202022964113U CN214007138U CN 214007138 U CN214007138 U CN 214007138U CN 202022964113 U CN202022964113 U CN 202022964113U CN 214007138 U CN214007138 U CN 214007138U
- Authority
- CN
- China
- Prior art keywords
- nylon
- metal ring
- ring
- gland
- conductive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a beam-pumping unit polished rod eccentric wear warning trigger device, this device are equipped with warning trigger working barrel, nylon gland and nylon inner ring, and the nylon inner ring is installed in the nylon gland, and the polished rod passes from nylon inner ring and nylon gland, and the warning trigger working barrel is connected with the polished rod seal box pressure cap of beam-pumping unit well head. The conductive inner metal ring is fixed outside the outer wall of the nylon inner ring, the conductive outer metal ring is fixed in the inner wall of the nylon gland, the nylon inner ring and the conductive inner metal ring are installed in the conductive outer metal ring, the conductive inner metal ring and the conductive outer metal ring are located in a space, and are communicated with a remote control module in a well site ground control cabinet through an inner metal ring electric lead and an outer metal ring electric lead to send out alarm signals in time. The device is convenient to connect and install, and the installation workload of the polish rod sealing box is not additionally increased. The method avoids the phenomenon that the polished rod of the pumping well is eccentrically worn for too long time, so that crude oil is leaked, the environment is polluted or other adverse results are caused.
Description
Technical Field
The utility model relates to an oil industry rod-pumped well polished rod prevent eccentric wear device, especially beam-pumping unit polished rod eccentric wear alarm trigger device.
Background
In the oil extraction process of the oil pumping machine, the oil pumping polished rod does up-and-down reciprocating motion in the polished rod sealing box for a long time, and is subjected to the sealing and pressing action of a packing in the polished rod sealing box, so that local damage is caused under the long-term mutual pressure and friction action, a galvanized protective layer of a polished rod substrate is damaged, damage points can be rapidly expanded along a position interface with the largest potential difference under the action of electrochemical corrosion, and the polished rod is damaged; meanwhile, the polish rod is corroded and damaged by other reasons, so that the surface of the polish rod is damaged and scrapped.
The packing in the sealing box without good lubrication is quickly worn in the sealing process, and the work of replacing the packing after failure is more complicated. At present, the maintenance of the oil pumping polish rod sealing box is to fill grease for lubrication on the surface of a new packing when the packing is replaced. The grease can be taken away or lost along with the up-and-down reciprocating motion of the oil pumping polished rod in a short time. The lubrication between the polish rod and the packing can only depend on crude oil in the oil well, and the crude oil is lubricated by the crude oil adhered to the surface of the oil pumping polish rod. However, the dry abrasion phenomenon of some oil wells with low oil production and high water content and even oil wells with intermittent oil production is more serious, and the change of the polish rod and the packing of the seal box of the oil wells is more frequent.
Moreover, the centers of the polish rod and the polish rod sealing box must be consistent to reduce the abrasion of the surface of the polish rod and the packing in the sealing box. However, in the using process, the reasons of vibration, rain wash, foundation subsidence, well mouth displacement of the oil pumping unit, uneven expansion and contraction of connected process pipelines and the like often occur, so that the oil pumping unit drives the oil pumping polished rod to deviate from the center of a well mouth, the farther the polished rod deviates from the center of the well mouth, the larger the friction force is, the more frequently, the worn grooves on the surface of the polished rod can be seen due to the friction of a packing, the galvanized protective layer of the polished rod is damaged, and the polished rod is easily damaged and loses efficacy due to atmospheric corrosion and electrochemical corrosion. Meanwhile, from the stress of the polish rod, a bending alternating load is applied, and the polish rod is subjected to fatigue fracture and scrapping after long-time action. If the polished rod can not be used continuously due to serious eccentric wear, the oil leakage from the well mouth can pollute the environment. When the oil well is more serious, the polish rod is broken and takes off to cause the down-hole oil pumping equipment to fall into the well, and the normal production of the oil well is influenced.
For the monitoring of the working state of the polished rod, most of the polished rod is repaired after being observed and found by oil producers on the spot of daily well patrol, so that the management workload of the workers is increased. Although the existing monitoring facilities are in four forms, the working conditions of some wellhead equipment can be observed, but the real-time monitoring of wellhead eccentric wear of the polished pumping rod cannot be realized.
In view of the problems caused by the two situations, the packing in the sealing box without good lubrication is abraded too fast in the sealing process, so that the times of replacing the oil pumping polished rod and the packing in the sealing box after failure are increased, and the material cost and the labor cost are increased; the cumulative production losses from shut-downs and kill operations during workover operations are also increased.
In order to improve the eccentric wear working state of the polish rod, the problem is generally solved from the structure of a polish rod sealing box, and at present, the following devices are also provided for improving the working state of the polish rod:
1. CN103161421A oil pumping polished rod lubrication sealing device, the packing body joint is installed on the rubber valve upper end of the oil pumping well head, when a new packing needs to be installed, the telescopic butterfly valve is firstly closed, the valve rod of the telescopic butterfly valve enters between the boss and the packing hanging nail to clamp and support the boss, then the oil cup gland is supported to the position where the packing can be conveniently installed, meanwhile, under the action of the supporting device, the oil cup gland is supported, the opening packing groups are sequentially installed in the polished rod, then the opening packing groups and the packing hanging nail are fixedly connected together through the packing hanging rope, the packing gland is pressed downwards to seat the packing body joint, the supporting device is removed, and finally the oil cup gland and the packing body joint are installed together; when an old open packing group is taken, the telescopic butterfly valve is closed, the oil cup gland is screwed up, the valve rod of the telescopic butterfly valve enters a space between the boss and the packing hanging nail to clamp and support the boss, the oil cup gland is screwed up continuously, the open packing group naturally ascends under the driving of the oil cup gland and the packing press ring, then the telescopic butterfly valve is opened, the clamping and supporting of the valve rod of the telescopic butterfly valve on the boss are released, the open packing group is pulled down, the packing hanging rope is taken down from the packing hanging nail, the open packing group is moved away from the polished rod, and then the installation of a new open packing group is started; when the oil is started, whether oil leaks in the oil cavity is observed through the sight glass, if the oil leaks during the oil starting, the oil can prop open the oil retaining disc root under the action of the oil pressure to enter the oil cavity, at the moment, the oil in the oil cavity can be observed through the sight glass, if the oil does not leak, and after the oil is determined to be started without the oil leakage, the lubricating oil can be poured into the oil inlet cavity through the oil pouring hole when the lubricating oil needs to be added, so that the polished rod is lubricated. The whole structure is complex, and the manufacturing cost is high. The lubricating oil is filled in a lubricating oil mode, so that the lubricating oil is lost too fast when the polished pumping rod is slightly worn, the timely observation is required, and the filling is frequent. The automatic lubrication effect of the oil pumping polished rod for a long time cannot be realized.
2. When the CN203891824U self-lubricating polished sucker rod sealer is used, a sealing box penetrates through the polished sucker rod and is installed on a well head, a lower follow-up pad penetrates through the polished sucker rod and is placed at the bottom of the sealing box, sealing filler is added, an upper follow-up pad penetrates through the polished sucker rod and is pressed on the sealing filler, an oil cup is installed, and a gland of the sealing box is installed. The sealing pad seat, the sealing pad and the pressing sleeve are placed on the sealing box pressing cover through the polished pumping rod, and then the pressing cover is installed. After the gland of the sealing box and the gland are screwed down, the bolt is dismounted, the lubricant is injected, and the bolt is screwed down, so that the sealing box can be used. The lubricating oil is filled in the oil pumping rod in a lubricating oil mode, and as with the patented technology, the automatic lubricating effect of the oil pumping rod for a long time cannot be realized, and the eccentric wear alarming function cannot be realized.
Disclosure of Invention
The utility model aims at providing a warning trigger device is worn to one side to beam-pumping unit polished rod solves the problem that can not in time report to the police after serious eccentric wear appears in present oil pumping polished rod. The service life of the oil pumping polished rod is prolonged, and production accidents caused by failure and breakage of the oil pumping polished rod are prevented. The management level of the oil well is improved, and the production cost and the labor intensity of workers are reduced.
The technical solution of the utility model is that:
the utility model provides a pumping unit polished rod eccentric wear warning trigger device, is equipped with warning trigger working barrel, nylon gland and nylon inner ring, wherein:
the nylon gland is connected with the alarm triggering working barrel through a gland bolt, the nylon inner ring is installed in the nylon gland, the polished rod penetrates through the nylon inner ring and the nylon gland, and the alarm triggering working barrel is connected with a polished rod sealing box pressing cap of a wellhead of the pumping unit;
the nylon inner ring is provided with a nylon inner ring boss, an electric lead perforation and a sliding groove are arranged in the body on one side of the nylon gland, and the nylon inner ring boss of the nylon inner ring can move in the sliding groove of the nylon gland;
the conductive inner metal ring is fixed outside the outer wall of the nylon inner ring, the conductive outer metal ring is fixed in the inner wall of the nylon gland, and the nylon inner ring and the conductive inner metal ring are arranged in the conductive outer metal ring to enable the conductive inner metal ring and the conductive outer metal ring to be in a space;
one end of the inner metal ring electric lead is welded with the inner wall of the conductive inner metal ring, one end of the outer metal ring electric lead is welded with the outer wall of the conductive outer metal ring, and the other ends of the inner metal ring electric lead and the outer metal ring electric lead penetrate through electric lead through holes on one side of the nylon gland and are respectively connected with a remote control module in the well site ground control cabinet.
The electric lead perforation in the nylon gland is arranged in the connecting step at the upper part of the nylon gland, and the sliding groove is arranged in the body below the connecting step at the upper part of the nylon gland and is communicated with the central hole of the nylon gland and the electric lead perforation.
The nylon inner ring boss is arranged at the upper end of one side of the nylon inner ring welded with the inner metal ring electric lead, and the nylon inner ring boss can drive the nylon inner ring and the conductive inner metal ring to move along the sliding groove.
The lower extreme terminal surface of nylon inner ring is equipped with water drainage tank, and this water drainage tank link up with the centre bore and the outer wall of nylon inner ring, water drainage tank is equipped with one at least.
And a nylon backing ring is further fixed below the nylon gland and the conductive outer metal ring, and the height of the nylon backing ring is at least 1mm higher than the depth of the groove body of the drainage groove.
A drain hole is formed in the body of the alarm triggering working barrel and is communicated with the central hole and the outer wall of the alarm triggering working barrel; a polish rod sealing box pressing cap connected below the alarm triggering working barrel is internally provided with a sealing box pressing cap nylon wear-resisting ring.
The alarm triggering working barrel and the central hole of the nylon gland are consistent in aperture and larger than the aperture of the central hole of the nylon inner ring, and can be communicated with the drainage groove on the lower end face of the nylon inner ring.
The distance between the conductive inner metal ring and the conductive outer metal ring is set to be 3-5 mm.
The utility model provides a pumping unit polished rod eccentric wear warning trigger device, is equipped with warning trigger working barrel, nylon gland and nylon inner ring, wherein:
the nylon gland is connected with the alarm triggering working barrel through a gland bolt, the nylon inner ring is arranged in the nylon gland, the polished rod penetrates through the nylon inner ring and the nylon gland, and the alarm triggering working barrel is connected with the lubricating barrel;
the nylon inner ring is provided with a nylon inner ring boss, an electric lead perforation and a sliding groove are arranged in the body on one side of the nylon gland, and the nylon inner ring boss of the nylon inner ring can move in the sliding groove of the nylon gland;
the conductive inner metal ring is fixed outside the outer wall of the nylon inner ring, the conductive outer metal ring is fixed in the inner wall of the nylon gland, and the nylon inner ring and the conductive inner metal ring are arranged in the conductive outer metal ring to enable the conductive inner metal ring and the conductive outer metal ring to be in a space;
one end of the inner metal ring electric lead is welded with the inner wall of the conductive inner metal ring, one end of the outer metal ring electric lead is welded with the outer wall of the conductive outer metal ring, and the other ends of the inner metal ring electric lead and the outer metal ring electric lead penetrate through electric lead through holes on one side of the nylon gland and are respectively connected with a remote control module in the well site ground control cabinet.
The electric lead perforation in the nylon gland is arranged in the connecting step at the upper part of the nylon gland, and the sliding groove is arranged in the body below the connecting step at the upper part of the nylon gland and is communicated with the central hole of the nylon gland and the electric lead perforation.
The nylon inner ring boss is arranged at the upper end of one side of the nylon inner ring welded with the inner metal ring electric lead, and the nylon inner ring boss can drive the nylon inner ring and the conductive inner metal ring to move along the sliding groove.
The lower extreme terminal surface of nylon inner ring is equipped with water drainage tank, and this water drainage tank link up with the centre bore and the outer wall of nylon inner ring, water drainage tank is equipped with one at least.
And a nylon backing ring is further fixed below the nylon gland and the conductive outer metal ring, and the height of the nylon backing ring is at least 1mm higher than the depth of the groove body of the drainage groove.
The body of the alarm triggering working barrel is provided with a drain hole which is communicated with the central hole and the outer wall of the alarm triggering working barrel.
The alarm triggering working barrel and the central hole of the nylon gland are consistent in aperture and larger than the aperture of the central hole of the nylon inner ring, and can be communicated with the drainage groove on the lower end face of the nylon inner ring.
The distance between the conductive inner metal ring and the conductive outer metal ring is set to be 3-5 mm.
A grease nozzle is arranged in a cylinder body of the lubricating cylinder, threads are arranged at two ends of the cylinder body of the lubricating cylinder and can be respectively connected with an alarm trigger working cylinder and a polish rod sealing box pressing cap of a wellhead of the pumping unit; the inner cavity of the upper part of the lubricating cylinder is internally provided with a nylon wear-resistant ring of the lubricating cylinder and an oil seal of the lubricating cylinder, and the pressing cap of the polish rod sealing box connected with the lubricating cylinder is internally provided with a nylon wear-resistant ring of the pressing cap of the sealing box and an oil seal of the pressing cap of the sealing box from bottom to top.
Compared with the prior art, the utility model discloses a show the result of use and be:
the utility model has two embodiments, one is that the alarm trigger working barrel of the device is connected with the polish rod sealing box pressing cap; the other is that the alarm triggering working barrel of the device is connected with the polish rod sealing box pressing cap through a lubricating barrel.
The device is installed on or above the oil pumping polished rod sealing box of the oil extraction well head, is convenient to connect and install, and does not additionally increase the installation workload of the polished rod sealing box. The alarm triggering working barrel is connected to the threaded connection part of the polish rod sealing box pressing cap, and after a certain pretightening force is given, the packing in the polish rod sealing box or the oil seal is pressed firmly and sealed.
Especially, the utility model discloses an embodiment two the utility model discloses embodiment one has solved under the circumstances that the polished rod ground off the way and reported to the police, starts to solve the lubrication problem that present polished rod exists again from the polished rod lubrication angle. The utility model discloses an embodiment two has connected a lubrication section of thick bamboo in the below of reporting to the police and triggering the working barrel, can pass through grease nipple filling butter for a lubrication section of thick bamboo at any time, guarantees that the polished rod that passes through in the lubrication section of thick bamboo obtains fine lubrication. The problem of dry grinding of the polish rod packing and the polish rod is effectively solved, when the oil pumping polish rod reciprocates up and down, grease in the lubricating cavity can be adhered to the surface of the oil pumping polish rod, and the sealing box with the sealing function presses the cap oil seal, namely the packing can be lubricated. With the protective film, the corrosion of the surface of the polished sucker rod in the atmosphere is greatly reduced. According to the volume of the lubricating cylinder, the grease is added every 1 to 2 months, the operation is simple, and the well stopping operation is not needed. The lubricating cylinder has moderate capacity, can store a small amount of crude oil brought out by the eccentric wear polished pumping rod, and can not leak the crude oil to a well head, and the crude oil can also play a role of lubricating together with butter.
The inner metal ring electric lead and the outer metal ring electric lead of the device are two alarm electric leads which are connected with a remote control module in a well site ground control cabinet. And a remote control module in the well site ground control cabinet is connected with a production command system of the district monitoring center through a local area network and used for realizing state alarm. When a polish rod of the pumping well deviates from a well head by more than a set distance, the conductive inner metal ring embedded on the nylon inner ring is in contact with the conductive ring metal ring fixed on the inner wall of the nylon gland, and the inner metal ring electric lead and the outer metal ring electric lead are communicated with a remote control module in a well site ground control cabinet to send out an alarm signal in time. Workers can quickly arrive at the site to search the reason causing the eccentric wear of the polished rod, and the problem that the polished rod deviates from the center of the wellhead is solved according to specific conditions. The method avoids the phenomenon that the polished rod of the pumping well is eccentrically worn for too long time, so that crude oil is leaked, the environment is polluted or other adverse results are caused.
It is comprehensive above, the utility model has the advantages of being simple in structure, convenient operation, practicality are strong, and lubricating property is good, has not only prolonged the change cycle of packing in the oil pumping polished rod sealing box, has reduced the change number of times of packing, has effectively prolonged the life of oil pumping polished rod in addition. The early warning function is played to the excessive eccentric wear condition of the polish rod and the polish rod sealing box packing, and the possible adverse effect and the economic loss caused by the adverse effect are effectively avoided. The oil well has the advantages of reducing the leakage of crude oil at the mouth of the oil pumping unit, greatly reducing the labor intensity of workers, reducing the production cost, improving the aging of the oil well, improving the oil extraction efficiency, having obvious use effect and having good popularization and application values for perfecting the construction of the oil extraction unit.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 3 is a schematic structural view of the nylon inner ring in fig. 1 and 2.
Fig. 4 is a schematic structural view of the nylon gland of fig. 1 and 2.
In the figure: the alarm trigger working barrel comprises an alarm trigger working barrel 1, a nylon gland 2, a conductive outer metal ring 3, a conductive inner metal ring 4, a drain hole 5, a nylon inner ring 6, a nylon inner ring boss 7, a drain groove 8, a sliding groove 9, a nylon backing ring 10, an inner metal ring electric lead 11, an outer metal ring electric lead 12, a gland bolt 13, a lubricating barrel nylon wear-resisting ring 14, a lubricating barrel oil seal 15, a lubricating barrel 16, a grease nipple 17, a sealing box pressing cap oil seal 18, a sealing box pressing cap nylon wear-resisting ring 19, a polish rod sealing box pressing cap 20 and a polish rod 21.
Detailed Description
The drawings are for reference and illustration purposes only and are not intended to limit the scope of the present disclosure. The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
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.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
The utility model discloses there are two kinds of implementation modes:
implementation mode one
Referring to fig. 1, 3 and 4, an alarm triggering device for polish rod eccentric wear of a pumping unit is provided with an alarm triggering working barrel 1, a nylon gland 2 and a nylon inner ring 6, wherein: the nylon gland 2 is connected with the alarm triggering working barrel 1 through a gland bolt 13, the nylon inner ring 6 is arranged in the nylon gland 2, the polish rod 21 penetrates through the nylon inner ring 6 and the nylon gland 2, and the alarm triggering working barrel 1 is connected with a polish rod sealing box gland 20 at the wellhead of the pumping unit;
the nylon inner ring 6 is provided with a nylon inner ring boss 7, an electric lead perforation and a sliding groove 9 are arranged in a body on one side of the nylon gland 2, and the nylon inner ring boss 7 of the nylon inner ring 6 can move in the sliding groove 9 of the nylon gland 2;
the conductive inner metal ring 4 is fixed outside the outer wall of the nylon inner ring 6, the conductive outer metal ring 3 is fixed in the inner wall of the nylon gland 2, the nylon inner ring 6 and the conductive inner metal ring 4 are arranged in the conductive outer metal ring 3, and the conductive inner metal ring 4 and the conductive outer metal ring 3 are positioned in a space;
one end of an inner metal ring electric lead 11 is welded with the inner wall of the conductive inner metal ring 4, one end of an outer metal ring electric lead 12 is welded with the outer wall of the conductive outer metal ring 3, and the other ends of the inner metal ring electric lead 11 and the outer metal ring electric lead 12 penetrate through electric lead perforations on one side of the nylon gland 2 to be respectively connected with a remote control module in the well site ground control cabinet. And a remote control module in the well site ground control cabinet is connected with a production command system of the district monitoring center through a local area network and used for realizing state alarm. The conductive outer metal ring 3 and the conductive inner metal ring 4 can be made of a conductive material such as copper, iron, silver, or the like.
After the polish rod 21 is eccentric and eccentric wear clearance occurs, the nylon inner ring 6 can move along the sliding groove 9 under the action of the nylon inner ring boss 7, when the polish rod 21 of the pumping well deviates from a well mouth and exceeds a set distance, the conductive inner metal ring 4 embedded on the nylon inner ring 6 is in contact with the conductive outer metal ring 3 fixed on the inner wall of the nylon gland 2, the local area network and the district monitoring center production command system are communicated through the inner metal ring electric lead 11 and the outer metal ring electric lead 12, an alarm signal is timely sent out, workers quickly arrive at the site to search the cause of eccentric wear, and the deviation problem of the polish rod 21 is solved according to specific conditions. Avoiding the eccentric wear of the polish rod 21 of the pumping well for too long time, which causes crude oil leakage and environmental pollution or other adverse results.
On the basis of the above embodiment, the utility model discloses there is following embodiment:
preferably, the electric lead perforation in the nylon gland 2 is arranged in the connecting step at the upper part of the nylon gland 2, and the sliding groove 9 is arranged in the body below the connecting step at the upper part of the nylon gland 2 and is communicated with the central hole of the nylon gland 2 and the electric lead perforation.
Preferably, the nylon inner ring boss 7 is arranged at the upper end of one side of the nylon inner ring 6 welded with the inner metal ring electric lead 11, and the nylon inner ring boss 7 can drive the nylon inner ring 6 and the conductive inner metal ring 4 to move along the sliding groove 9.
Preferably, the lower end face of the nylon inner ring 6 is provided with a water drainage groove 8, the water drainage groove 8 is communicated with the central hole and the outer wall of the nylon inner ring 6, and at least one water drainage groove 8 is arranged.
Preferably, a nylon backing ring 10 is further fixed below the nylon gland 2 and the conductive outer metal ring 3, and the height of the nylon backing ring 10 is at least 1mm higher than the depth of the drainage groove 8。
Preferably, a drain hole 5 is formed in the body of the alarm triggering working barrel 1, and the drain hole 5 is communicated with the central hole and the outer wall of the alarm triggering working barrel 1; a polish rod sealing box pressing cap 20 connected below the alarm triggering working barrel 1 is internally provided with a sealing box pressing cap nylon wear-resisting ring 19. The nylon wear-resistant ring 19 of the sealing box pressing cap is additionally arranged in the polish rod sealing box pressing cap 20, so that the polished rod 21 can be delayed to be in contact with a packing pressure plate in the polish rod sealing box directly after eccentric wear occurs, the surface of the polished rod is abraded, and sufficient reserved time is provided for the eccentric adjustment work.
Preferably, the hole diameters of the central holes of the alarm triggering working barrel 1 and the nylon gland 2 are consistent and are all larger than the hole diameter of the central hole of the nylon inner ring 6, and the alarm triggering working barrel can be communicated with a drainage groove 8 on the lower end face of the nylon inner ring 6.
Preferably, the distance between the conductive inner metal ring 4 and the conductive outer metal ring 3 is set between 3mm and 5 mm.
Second embodiment
Referring to fig. 2, 3 and 4, an alarm triggering device for polish rod eccentric wear of a pumping unit is provided with an alarm triggering working barrel 1, a nylon gland 2 and a nylon inner ring 6, wherein:
the nylon gland 2 is connected with the alarm triggering working barrel 1 through a gland bolt 13, the nylon inner ring 6 is arranged in the nylon gland 2, the polished rod 21 penetrates through the nylon inner ring 6 and the nylon gland 2, and the alarm triggering working barrel 1 is connected with the lubricating barrel 16;
the nylon inner ring 6 is provided with a nylon inner ring boss 7, an electric lead perforation and a sliding groove 9 are arranged in a body on one side of the nylon gland 2, and the nylon inner ring boss 7 of the nylon inner ring 6 can move in the sliding groove 9 of the nylon gland 2;
the conductive inner metal ring 4 is fixed outside the outer wall of the nylon inner ring 6, the conductive outer metal ring 3 is fixed in the inner wall of the nylon gland 2, the nylon inner ring 6 and the conductive inner metal ring 4 are arranged in the conductive outer metal ring 3, and the conductive inner metal ring 4 and the conductive outer metal ring 3 are positioned in a space;
one end of an inner metal ring electric lead 11 is welded with the inner wall of the conductive inner metal ring 4, one end of an outer metal ring electric lead 12 is welded with the outer wall of the conductive outer metal ring 3, and the other ends of the inner metal ring electric lead 11 and the outer metal ring electric lead 12 penetrate through electric lead perforations on one side of the nylon gland 2 to be respectively connected with a remote control module in the well site ground control cabinet. And a remote control module in the well site ground control cabinet is connected with a production command system of the district monitoring center through a local area network and used for realizing state alarm.
After the polish rod 21 is eccentric and eccentric wear clearance occurs, the nylon inner ring 6 can move along the sliding groove 9 under the action of the nylon inner ring boss 7, when the polish rod 21 of the pumping well deviates from a well mouth and exceeds a set distance, the conductive inner metal ring 4 embedded on the nylon inner ring 6 is in contact with the conductive outer metal ring 3 fixed on the inner wall of the nylon gland 2, the local area network and the district monitoring center production command system are communicated through the inner metal ring electric lead 11 and the outer metal ring electric lead 12, an alarm signal is timely sent out, workers quickly arrive at the site to search the cause of eccentric wear, and the deviation problem of the polish rod 21 is solved according to specific conditions. Avoiding the eccentric wear of the polish rod 21 of the pumping well for too long time, which causes crude oil leakage and environmental pollution or other adverse results. Meanwhile, the embodiment also solves the problem of dry grinding of the seal box cap pressing oil seal 18 in the polish rod 21 and the polish rod seal box cap pressing 20.
On the basis of the above embodiment, the utility model discloses there is following embodiment:
preferably, the electric lead perforation in the nylon gland 2 is arranged in the connecting step at the upper part of the nylon gland 2, and the sliding groove 9 is arranged in the body below the connecting step at the upper part of the nylon gland 2 and is communicated with the central hole of the nylon gland 2 and the electric lead perforation.
Preferably, the nylon inner ring boss 7 is arranged at the upper end of one side of the nylon inner ring 6 welded with the inner metal ring electric lead 11, and the nylon inner ring boss 7 can drive the nylon inner ring 6 and the conductive inner metal ring 4 to move along the sliding groove 9.
Preferably, the lower end face of the nylon inner ring 6 is provided with a water drainage groove 8, the water drainage groove 8 is communicated with the central hole and the outer wall of the nylon inner ring 6, and at least one water drainage groove 8 is arranged.
Preferably, a nylon backing ring 10 is further fixed below the nylon gland 2 and the conductive outer metal ring 3, and the height of the nylon backing ring 10 is at least 1mm higher than the depth of the drainage groove 8。
Preferably, a drain hole 5 is formed in the body of the alarm triggering operating cylinder 1, and the drain hole 5 is communicated with the central hole and the outer wall of the alarm triggering operating cylinder 1.
Preferably, the hole diameters of the central holes of the alarm triggering working barrel 1 and the nylon gland 2 are consistent and are all larger than the hole diameter of the central hole of the nylon inner ring 6, and the alarm triggering working barrel can be communicated with a drainage groove 8 on the lower end face of the nylon inner ring 6.
Preferably, the distance between the conductive inner metal ring 4 and the conductive outer metal ring 3 is set between 3mm and 5 mm.
A grease nozzle 17 is arranged in the cylinder body of the lubricating cylinder 16, threads are arranged at two ends of the cylinder body of the lubricating cylinder 16 and can be respectively connected with the alarm triggering working cylinder 1 and a polish rod sealing box pressing cap 20 of a wellhead of the pumping unit; the upper inner cavity of the lubricating cylinder 16 is provided with a lubricating cylinder nylon wear-resistant ring 14 and a lubricating cylinder oil seal 15, and a polish rod sealing box pressing cap 20 connected with the lubricating cylinder 16 is internally provided with a sealing box pressing cap nylon wear-resistant ring 19 and a sealing box pressing cap oil seal 18 from bottom to top. The polish rod 21 passes through the nylon wear-resistant ring 14 of the lubricating cylinder and the oil seal 15 of the lubricating cylinder, so that the polish rod 21 is sealed, and grease can be added at any time through the grease nipple 17, so that the polish rod 21 is prevented from being dry-ground. The nylon wear-resistant ring 19 of the sealing box pressing cap is additionally arranged in the polish rod sealing box pressing cap 20, so that the polished rod 21 can be delayed to be in contact with a packing pressure plate in the polish rod sealing box directly after eccentric wear occurs, the surface of the polished rod is abraded, and sufficient reserved time is provided for the eccentric adjustment work.
In the second embodiment, after the lubricating cylinder 16 is added, the problem of lubrication between the polish rod 21 and the polish rod sealing box pressing cap 20 can be effectively solved, and dry abrasion of the oil seal between the polish rod 21 and the polish rod sealing box and the sealing box pressing cap oil seal 18 and the sealing box pressing cap nylon wear-resistant ring 19 in the polish rod sealing box pressing cap 20 can be effectively prevented.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and modifications can be made, and equivalents can be substituted for elements thereof. Any modification, equivalent replacement, improvement and the like made within the spirit and the concept of the present invention should be included in the protection scope of the present invention. The scope of protection is therefore not limited to the description above.
Claims (10)
1. The utility model provides a pumping unit polished rod eccentric wear warning trigger device which characterized by: be equipped with warning trigger working barrel (1), nylon gland (2) and nylon inner ring (6), wherein:
the nylon gland (2) is connected with the alarm triggering working barrel (1) through a gland bolt (13), the nylon inner ring (6) is installed in the nylon gland (2), the polished rod (21) penetrates through the nylon inner ring (6) and the nylon gland (2), and the alarm triggering working barrel (1) is connected with a polished rod sealing box gland (20) at the wellhead of the pumping unit;
the nylon inner ring (6) is provided with a nylon inner ring boss (7), an electric lead perforation and a sliding groove (9) are arranged in the body on one side of the nylon gland (2), and the nylon inner ring boss (7) of the nylon inner ring (6) can move in the sliding groove (9) of the nylon gland (2);
the conductive inner metal ring (4) is fixed outside the outer wall of the nylon inner ring (6), the conductive outer metal ring (3) is fixed in the inner wall of the nylon gland (2), the nylon inner ring (6) and the conductive inner metal ring (4) are arranged in the conductive outer metal ring (3), and the conductive inner metal ring (4) and the conductive outer metal ring (3) are positioned in a space;
one end of the inner metal ring electric lead (11) is welded with the inner wall of the conductive inner metal ring (4), one end of the outer metal ring electric lead (12) is welded with the outer wall of the conductive outer metal ring (3), and the other ends of the inner metal ring electric lead (11) and the outer metal ring electric lead (12) penetrate through the electric lead through hole on one side of the nylon gland (2) to be respectively connected with the remote control module in the well site ground control cabinet.
2. The polished rod eccentric wear alarm trigger device of the oil pumping unit as claimed in claim 1, wherein the electrical lead perforation in the nylon gland (2) is arranged in the connecting step at the upper part of the nylon gland (2), and the sliding groove (9) is arranged in the body below the connecting step at the upper part of the nylon gland (2) and is communicated with the central hole and the electrical lead perforation of the nylon gland (2).
3. The alarm triggering device for the polish rod eccentric wear of the oil pumping unit as claimed in claim 2, wherein the nylon inner ring boss (7) is arranged at the upper end of one side of the nylon inner ring (6) welded with the inner metal ring electrical lead (11), and the nylon inner ring boss (7) can drive the nylon inner ring (6) and the conductive inner metal ring (4) to move along the sliding groove (9).
4. The polished rod eccentric wear alarm trigger device of the oil pumping unit according to claim 1, wherein the lower end face of the nylon inner ring (6) is provided with a water drainage groove (8), the water drainage groove (8) is communicated with the central hole and the outer wall of the nylon inner ring (6), and at least one water drainage groove (8) is arranged.
5. The polished rod eccentric wear alarm trigger device of the oil pumping unit as claimed in claim 4, wherein a nylon backing ring (10) is further fixed below the nylon gland (2) and the conductive outer metal ring (3), and the height of the nylon backing ring (10) is at least 1mm higher than the depth of the drainage groove (8).
6. The polished rod eccentric wear alarm trigger device of the oil pumping unit as claimed in claim 1, wherein the body of the alarm trigger working cylinder (1) is provided with a drain hole (5), and the drain hole (5) is communicated with the central hole and the outer wall of the alarm trigger working cylinder (1); a polish rod sealing box pressing cap (20) connected below the alarm triggering working barrel (1) is internally provided with a sealing box pressing cap nylon wear-resistant ring (19).
7. The polished rod eccentric wear alarm trigger device of the oil pumping unit as claimed in claim 6, wherein the alarm trigger working cylinder (1) and the nylon gland (2) have the same central hole diameter and are both larger than the central hole diameter of the nylon inner ring (6) and can be communicated with the drainage groove (8) on the lower end face of the nylon inner ring (6).
8. The alarm trigger device for the eccentric wear of the polish rod of the pumping unit according to claim 1, wherein the distance between the conductive inner metal ring (4) and the conductive outer metal ring (3) is set to be 3mm to 5 mm.
9. The utility model provides a pumping unit polished rod eccentric wear warning trigger device which characterized by: be equipped with warning trigger working barrel (1), nylon gland (2) and nylon inner ring (6), wherein:
the nylon gland (2) is connected with the alarm triggering working barrel (1) through a gland bolt (13), the nylon inner ring (6) is installed in the nylon gland (2), the polished rod (21) penetrates through the nylon inner ring (6) and the nylon gland (2), and the alarm triggering working barrel (1) is connected with the lubricating barrel (16);
the nylon inner ring (6) is provided with a nylon inner ring boss (7), an electric lead perforation and a sliding groove (9) are arranged in the body on one side of the nylon gland (2), and the nylon inner ring boss (7) of the nylon inner ring (6) can move in the sliding groove (9) of the nylon gland (2);
the conductive inner metal ring (4) is fixed outside the outer wall of the nylon inner ring (6), the conductive outer metal ring (3) is fixed in the inner wall of the nylon gland (2), the nylon inner ring (6) and the conductive inner metal ring (4) are arranged in the conductive outer metal ring (3), and the conductive inner metal ring (4) and the conductive outer metal ring (3) are positioned in a space;
one end of the inner metal ring electric lead (11) is welded with the inner wall of the conductive inner metal ring (4), one end of the outer metal ring electric lead (12) is welded with the outer wall of the conductive outer metal ring (3), and the other ends of the inner metal ring electric lead (11) and the outer metal ring electric lead (12) penetrate through the electric lead through hole on one side of the nylon gland (2) to be respectively connected with the remote control module in the well site ground control cabinet.
10. The polished rod eccentric wear alarm trigger device of the oil pumping unit as claimed in claim 9, wherein the lubricating cylinder (16) is provided with a grease nipple (17) in the cylinder body, and both ends of the lubricating cylinder (16) are provided with threads and can be respectively connected with the alarm trigger working cylinder (1) and a polished rod sealing box pressing cap (20) of the wellhead of the oil pumping unit; a lubricating cylinder nylon wear-resistant ring (14) and a lubricating cylinder oil seal (15) are arranged in an upper inner cavity of the lubricating cylinder (16), and a sealing box pressing cap nylon wear-resistant ring (19) and a sealing box pressing cap oil seal (18) are arranged in a polish rod sealing box pressing cap (20) connected with the lubricating cylinder (16) from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022964113.7U CN214007138U (en) | 2020-12-11 | 2020-12-11 | Pumping unit polished rod eccentric wear alarm trigger device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022964113.7U CN214007138U (en) | 2020-12-11 | 2020-12-11 | Pumping unit polished rod eccentric wear alarm trigger device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214007138U true CN214007138U (en) | 2021-08-20 |
Family
ID=77310988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022964113.7U Active CN214007138U (en) | 2020-12-11 | 2020-12-11 | Pumping unit polished rod eccentric wear alarm trigger device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214007138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622895A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | Pumping unit polished rod eccentric wear alarm trigger device |
-
2020
- 2020-12-11 CN CN202022964113.7U patent/CN214007138U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622895A (en) * | 2020-12-11 | 2022-06-14 | 中国石油化工股份有限公司 | Pumping unit polished rod eccentric wear alarm trigger device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2719907C2 (en) | Wellhead pressure sealer of sucker-rod pump unit | |
| CN214007138U (en) | Pumping unit polished rod eccentric wear alarm trigger device | |
| US4917190A (en) | Oil well blowout containment system | |
| CN2937459Y (en) | Double-offset polish rod sealer for pumping well | |
| US5549156A (en) | Shock absorber & Wiper | |
| CN114622895A (en) | Pumping unit polished rod eccentric wear alarm trigger device | |
| CN211039005U (en) | Wear-resistant split plunger for high-pressure plunger pump | |
| CN106089663A (en) | Continuous two-way lifting oil pump | |
| CN206397464U (en) | Wellhead steam injection anti-pricked sealing device | |
| CN215595533U (en) | Pumping unit well head antiseep sealing device | |
| CN202578571U (en) | Drill stem elevator for anti-slurry rotary drilling rig | |
| CN215211237U (en) | Hydraulic breaking hammer with drill rod convenient to replace | |
| CN110513069B (en) | Sealing device based on oil pumping device at oil well mouth | |
| CN106639958A (en) | Pithead steam injection anti-leakage sealing device | |
| CN2426913Y (en) | High-pressure rod less sealing device for pumping unit well head | |
| CN206035775U (en) | Continuous two -way oil -well pump that lifts | |
| CN216429547U (en) | Eccentric wear prevention device for polish rod sealing box of oil production well | |
| CN113247547A (en) | Driving device of scraper conveyor for coal mining in mine | |
| CN210888866U (en) | Blowout prevention large-pressure cap device | |
| CN212027732U (en) | Sucker rod blowout prevention box | |
| CN205297441U (en) | Screw seal device for oil pumping unit | |
| CN2660102Y (en) | Improved wellhead sealing structure for polished rod of beam unit | |
| CN210195706U (en) | Oil type polished rod lubrication blowout preventer | |
| CN214617286U (en) | Double sealing device for oil cylinder of hydraulic oil pumping unit | |
| CN218656037U (en) | Better cantilever crane cap of sealing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |