CN210374916U - Automatic monitoring device for rising of Christmas tree - Google Patents
Automatic monitoring device for rising of Christmas tree Download PDFInfo
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- CN210374916U CN210374916U CN201921328663.0U CN201921328663U CN210374916U CN 210374916 U CN210374916 U CN 210374916U CN 201921328663 U CN201921328663 U CN 201921328663U CN 210374916 U CN210374916 U CN 210374916U
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Abstract
The utility model discloses a production tree rising automatic monitoring device is applicable to the production tree, include: the device comprises a fixing component fixedly connected with the Christmas tree and lifting along with the Christmas tree, a magnetic body connected with the fixing component and driven to lift through the fixing component, and a magnetic turning plate indicator and/or a lifting signal transmitter arranged on one side of a lifting surface of the magnetic body; during the rising process of the magnetic body, the magnetic turning plate indicator changes the state of the magnetic turning piece at the corresponding height through the magnetic coupling effect with the magnetic body and indicates the scale value of the magnetic body at the corresponding height; and/or, in the lifting process of the magnetic body, the lifting signal transmitter changes the closing or opening of the magnetic switch at the corresponding height through the magnetic coupling action with the magnetic body and outputs a current signal corresponding to the height of the magnetic body. By implementing the utility model, the measurement is more accurate and stable, and the accuracy of the height monitoring of the Christmas tree is improved; the tree height of the Christmas tree can be continuously monitored in real time.
Description
Technical Field
The utility model relates to an oil gas exploitation engineering field especially relates to a production tree risees automatic monitoring device.
Background
In the oil and gas exploitation and development, the oil is throttled and cooled by an oil nozzle of a Christmas tree and then enters a downstream production process system, and the pressure temperature at the upstream of the oil nozzle is basically consistent with the pressure temperature of the stratum and is in a high-pressure high-temperature state. When the well cementation quality of the production well has defects or the production well belongs to a high-temperature and ultrahigh-temperature well, the casing and the oil pipe are heated and expanded due to the temperature transmission in the production process, and finally the Christmas tree is raised. On the one hand, stress distribution of ground pipelines and equipment is influenced by the rise of the Christmas tree, the pipelines have the risk of breakage, on the other hand, the rise of the Christmas tree can also cause the contact between the Christmas tree and the surrounding pipeline structures, so that the damage of the Christmas tree is caused, and particularly on an offshore oil and gas production platform, because the space is limited, the equipment and the pipelines are compact, the rise of the Christmas tree is severely limited, and a devastating disaster can happen carelessly.
In the general oil and gas production process, the rise of the Christmas tree needs to be concerned, the current method is basically to mark a zero point at the initial time, and a ruler is used for measuring the rising distance of the marked point in the production process so as to measure the rising height of the Christmas tree. Due to the limitation of the number of times of routing inspection, the tree height cannot be continuously monitored, and meanwhile, the rise of the Christmas tree cannot be accurately measured due to the superposition of measurement errors and human errors. In addition, due to the fact that the obtained Christmas tree data are discontinuous, the relation between the tree height and the oil temperature and the yield cannot be accurately reflected, and one hand of important data is lacked when the single well is subjected to production allocation analysis.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, can not carry out incessant control in succession to the tree height to prior art, simultaneously because measurement error and human error's stack makes the rising of measurement christmas tree that can not be accurate, in addition because the christmas tree data that obtain are discontinuous, can not accurately reflect the relation between tree height and the oil temperature, the output, lack the defect of important data on the one hand when carrying out the allotment analysis to the single well, provide a christmas tree rising automatic monitoring device.
The utility model provides a technical scheme that its technical problem adopted is: constructed a production tree rising automatic monitoring device, be applicable to the production tree, include:
the device comprises a fixing component fixedly connected with the Christmas tree and lifting along with the Christmas tree, a magnetic body connected with the fixing component and driven to lift through the fixing component, and a magnetic turning plate indicator and/or a lifting signal transmitter arranged on one side of a lifting surface of the magnetic body;
wherein, in the lifting process of the magnetic body, the magnetic turning plate indicator changes the state of the magnetic turning piece at the corresponding height through the magnetic coupling action with the magnetic body and indicates the scale value of the magnetic body at the corresponding height;
and/or, in the lifting process of the magnetic body, the lifting signal transmitter changes the closing or opening of the magnetic switch at the corresponding height through the magnetic coupling action with the magnetic body and outputs a current signal corresponding to the height of the magnetic body.
Preferably, in the automatic monitoring device for Christmas tree elevation of the present invention, the fixing assembly comprises: the device comprises at least one Christmas tree clip fixed on the Christmas tree, a Christmas tree connecting rod with one end fixedly connected with the Christmas tree clip, a zero position adjusting knob fixedly connected with the other end of the Christmas tree connecting rod, and a connecting wire with one end capable of being curled on the zero position adjusting knob;
the other end of the connecting wire is fixedly connected with the magnetic body.
Preferably, in the automatic monitoring device for Christmas tree rising of the present invention, the magnetic plate turning indicator comprises: the scale and the magnetic turning plate are arranged on one side of the scale and provided with a magnetic turning piece corresponding to each scale;
and in the lifting process of the magnetic body, the magnetic turning piece is turned over at the corresponding scale through the magnetic coupling effect with the magnetic body, is turned over to the surface with the mark, and displays the corresponding height change of the magnetic body.
Preferably, production tree risees automatic monitoring device in, under the initial condition, the magnetic substance is located the zero scale department of scale, rise signal transmission ware output preset with the magnetic substance is located the current signal that corresponds when the zero scale department of scale, current signal and highly directly proportional relation.
Preferably, in the automatic monitoring device for Christmas tree elevation of the present invention, the elevation signal transmitter comprises: a plurality of magnetic switches vertically disposed in a main pipe, a resistor connected to the magnetic switches, a sensor for acquiring a resistance signal, a converter for converting the resistance signal into a current signal, and a transmitter for outputting the current signal;
and in the lifting process of the magnetic body, the magnetic switch at the corresponding height is closed or disconnected through the magnetic coupling action with the magnetic body, so that the resistance signal is changed, and the current signal corresponding to the height of the magnetic body is converted and output.
Preferably, in the automatic monitoring device for Christmas tree rising of the present invention, the automatic monitoring device further comprises: the magnetic body is fished in the barrel body through the connecting line and rises along with the Christmas tree in the barrel body;
the magnetic turning plate indicator and/or the lifting signal transmitter are fixedly arranged on one side of the cylinder body.
Preferably, production tree risees automatic monitoring device in, be provided with the rocker on the zero-position adjust knob for pass through under initial condition the rocker is rotatory zero-position adjust knob, through connecting wire control the magnetic substance is aimed at the zero scale department of scale.
Preferably, in the automatic monitoring device for Christmas tree rising of the present invention, the automatic monitoring device further comprises: the flange with holes is arranged at the top of the cylinder body and used for sealing the cylinder body, and the middle hole is used for allowing the connecting line to pass through.
Preferably, production tree risees automatic monitoring device in, the connecting wire with directly place after zero-bit adjust knob connects in the cavity of production tree connecting rod, through the fitting pin on production tree connecting rod upper portion will zero-bit adjust knob with the production tree connecting rod is fixed.
Preferably, in the automatic monitoring device for Christmas tree rising, the Christmas tree clip comprises at least two clips, and the clips are fixed with the Christmas tree by bolts.
The utility model discloses a fixed subassembly converts the rising of production tree into the displacement of magnetic substance, and the displacement of magnetic substance then can overturn and directly show in the scene on corresponding the scale through the magnetic coupling effect magnetism turn over the piece in turning over the board indicator to magnetism, in order to reach the scene and patrol and examine the function that can normally read, can convert the rising into the analog quantity through rising signal transmission ware in addition and convey away, but realize the function that long-range real time monitoring production tree risees, make production tree rise automatic monitoring device's measurement more accurate stable, the accuracy of the high monitoring of production tree has been improved, can carry out scene and long-range real-time continuous monitoring to the production tree height.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic installation diagram of a first embodiment of the automatic monitoring device for the elevation of a christmas tree according to the present invention;
FIG. 2 is a schematic diagram showing the composition of a magnetic turning plate indicator 8 in the automatic monitoring device for the rise of the Christmas tree of the present invention;
fig. 3 is a schematic installation diagram of a second embodiment of the automatic monitoring device for the elevation of the christmas tree according to the present invention;
fig. 4 is a schematic installation diagram of a third embodiment of the automatic monitoring device for the elevation of the christmas tree according to the present invention;
in the drawings, 1: christmas tree connecting rod, 2: zero adjustment knob, 21: locking pin, 22: rocker, 3: perforated flange, 4: up signal transmitter, 41: main duct, 5: connecting wire, 6: magnetic body, 7: barrel, 8: magnetic flap indicator, 81: scale, 82: magnetic flap, 821: magnetic turning piece, 9: christmas tree clip, 10: christmas tree, 11: christmas tree valve, 12: and (4) the ground.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The utility model discloses the main technical problem who solves provides a can be to the high christmas tree rising automatic monitoring device who lasts the monitoring of christmas tree, adopt the device to replace original ruler, the magnetic substance that links to each other with it is driven to the rising displacement that utilizes the christmas tree reciprocates, the upset of the magnetism piece that turns over of board is turned over to the magnetism in the board indicator is turned over in the upper and lower removal drive magnetism of utilizing the magnetic substance, it rises the height to finally measure the christmas tree through on-the-spot magnetism board upset height that turns over, combine rising signal transmission ware simultaneously, convert corresponding tree height into analog signal, convey to the central control room, carry out long-range real-time supervision, thereby rise to the christmas tree and carry out long-rangely, and is continuous, accurate.
First embodiment, fig. 1 is the utility model discloses installation schematic diagram when christmas tree risees automatic monitoring device is applied to on the christmas tree, as shown in fig. 1, the utility model discloses a christmas tree risees automatic monitoring device has been constructed, is applicable to christmas tree 10, include: the device comprises a fixing component fixedly connected with a Christmas tree 10 and lifted along with the Christmas tree 10, a magnetic body 6 connected with the fixing component and driven to be lifted by the fixing component, a magnetic turning plate indicator 8 and a lifting signal transmitter 4, wherein the magnetic turning plate indicator 8 and the lifting signal transmitter 4 are arranged on one side of the lifting surface of the magnetic body 6;
wherein, during the raising of the magnetic body 6, the magnetic flap indicator 8 changes the state of the magnetic flap 821 at the corresponding height by the magnetic coupling action with the magnetic body 6, indicating the scale value of the magnetic body 6 at the corresponding height;
in the raising process of the magnetic body 6, the raising signal transmitter 4 changes the closing or opening of the magnetic switch at the corresponding height by the magnetic coupling action with the magnetic body 6, and outputs a current signal corresponding to the height at which the magnetic body 6 is located.
Specifically, the fixing assembly includes: at least one christmas tree checkpost 9 of fixing on the christmas tree, one end and the christmas tree connecting rod 1 of christmas tree checkpost 9 fixed connection, with the zero position adjust knob 2 of 1 other end fixed connection of christmas tree connecting rod, one end can be curled and contracted connecting wire 5 on zero position adjust knob 2, the other end fixed connection magnetic substance 6 of connecting wire 5. The connecting wire 5 has a tough and flexible characteristic, and the magnetic body 6 is a spherical body having magnetism and has a certain weight, so that the connecting wire 5 can be always kept in a vertical state. The connecting wire 5 is directly placed in the cavity of the Christmas tree connecting rod 1 after being connected with the zero adjusting knob 2, the zero adjusting knob 2 and the Christmas tree connecting rod 1 are fixed through the locking pin 21 on the upper portion of the Christmas tree connecting rod 1, and the Christmas tree connecting rod 1 and the Christmas tree 10 are always kept in vertical fixed connection. Because the zero position adjusting knob 2 is fixed, the magnetic body 6 connected with the connecting wire 5 can keep a fixed height, if the height of the magnetic body 6 needs to be adjusted, a rocker 22 is further arranged on the zero position adjusting knob 2, and when the fixed state of the zero position adjusting knob 2 is released and the height of the magnetic body 6 needs to be adjusted, the height of the magnetic body 6 can be adjusted through the rocker 22, and the magnetic body 6 is further controlled to be aligned to the zero scale of the scale 81 in the initial state.
Wherein, in order to guarantee that magnetic substance 6 rises along with christmas tree 10 in real time, consequently must guarantee the stable connection between christmas tree checkpost 9 and the christmas tree 10, consequently preferred christmas tree checkpost 9 includes two at least, fixes through bolt and christmas tree 10, makes christmas tree connecting rod 1 and christmas tree 10 remain perpendicular fixed connection throughout. In other embodiments, the fixing manner such as welding can be selected to complete the fixed connection of the tree clip 9 and the tree 10.
Since the connecting wire 5 is used in this embodiment, in order to ensure that the magnetic body 6 thereof can perform a magnetic coupling action with the magnetic flip 821 in a certain relatively stable environment, the method further includes: the cylinder 7 is fixedly placed, preferably on the ground or deck. The zero adjusting knob 2 is located right above the barrel 7, and the magnetic body 6 is fished in the barrel 7 through the connecting line 5 and rises along with the Christmas tree 10 in the barrel 7.
Accordingly, the magnetic turn plate indicator 8 and/or the elevation signal transmitter 4 are fixedly installed at one side of the cylinder 7. Meanwhile, in order to avoid the magnetic body 6 from being affected by external environmental dust and the like, the method further includes: the perforated flange 3 is arranged at the top of the cylinder body 7 and used for sealing the cylinder body 7, and a middle perforated hole is used for allowing the connecting wire 5 to pass through.
In other embodiments, can directly be through the telescopic link of production tree connecting rod fixed connection adjustable length, this rise telescopic link fixed connection magnetic substance can guarantee like this that the magnetic substance remains a stable state just can not rock all the time, can accurately carry out the magnetic coupling effect with the magnetism of corresponding high department and turn over piece and/or magnetic switch, no longer gives details here.
As shown in fig. 2, the magnetic flip indicator 8 includes: a scale 81 and a magnetic turning plate 82 which is arranged at one side of the scale 81 and is provided with a magnetic turning piece 821 corresponding to each scale. The magnetic turning plate consists of magnetic turning sheets, each of which has the same size and mass, and has inside magnetic column with magnetic poles in N-S self-locking attraction.
In an initial state, the magnetic body 6 is arranged at the zero scale of the scale 81, the central position of the magnetic body 6 corresponds to the zero scale of the scale 81, and in the rising process of the magnetic body 6, the magnetic turning piece 821 is turned over at the corresponding scale through the magnetic coupling effect with the magnetic body 6 to the surface with the mark, so that the surface with the mark continuously displays the height change corresponding to the magnetic body 6. Wherein, the scale of the scale can be preferably positioned at the boundary of the two magnetic turning pieces.
When the christmas tree 10 rises, the magnetic body 6 is driven to move upwards through the christmas tree connecting rod 1 and the connecting line 5, the magnetic body 6 corresponds to more than zero scale, the magnetic turning piece 821 at the corresponding position is turned to the side with the mark, and the side with the mark is kept until the magnetic body 6 falls back, for example, the magnetic turning piece 821 is turned to red from original white, so that a user can correspondingly read the scale of the scale from the red and white boundary, or correspondingly read the scale of the scale from the red, the rising height of the christmas tree is clearly obtained, and the measurement is carried out through the scale on site without manual operation.
The step-up signal transmitter 4 includes: a plurality of magnetic switches vertically disposed within a main duct 41, resistors connected to the magnetic switches, sensors for acquiring resistance signals, converters for converting the resistance signals into current signals, and transmitters for outputting the current signals. Preferably, the main duct 41 is vertically provided at one side of the magnetic body 6 or the cylinder 7.
In the initial state, the rising signal transmitter 4 outputs a preset current signal corresponding to the magnetic body 6 at the zero scale of the scale 81, and the current signal is in a direct proportion to the height. When the magnetic body 6 rises, the magnetic switch at the corresponding height is turned off or disconnected through the magnetic coupling action with the magnetic body, so that the resistance signal is changed, and the current signal corresponding to the height of the magnetic body 6 is converted and output. In this embodiment, preferably, in the process of raising the magnetic body 6, the magnetic switch at the corresponding height is opened or closed by the magnetic coupling effect with the magnetic body, so as to reduce the resistance, and convert and output the increased current signal, because the current signal is in a direct proportion with the height, and in an initial state, the current signal corresponding to the magnetic body 6 at the zero scale of the scale 81 is preset, the height corresponding to the current signal can be correspondingly calculated by the direct proportion, and thus, the signal is transmitted to the central control room by the transmitter, so as to achieve the normal reading in the field inspection, the central control room can remotely monitor the raising function of the christmas tree in real time, and can automatically store data for analyzing the relationship between the yield and the tree height.
When the height of the Christmas tree is reduced, one surface with the mark displayed in the magnetic turning plate can be turned to the surface without the mark through the magnetic coupling effect, and the corresponding current signal is output by the signal transmitter when the height is reduced.
And, the utility model discloses a rising signal transmission ware when carrying out real time monitoring with on-the-spot analog value direct transmission to central control room, can set up the alarm value, can produce the warning when rising when reaching the setting value at central control and remind. And in the process of remote monitoring, if the alarm is monitored, the well can be shut down remotely, so that safer and more reliable production is realized.
A second embodiment, as shown in fig. 3, the present invention constructs a christmas tree rise automatic monitoring device, which is suitable for a christmas tree 10, including: the device comprises a fixing component fixedly connected with a Christmas tree 10 and lifted along with the Christmas tree 10, a magnetic body 6 connected with the fixing component and driven to lift through the fixing component, and a magnetic turning plate indicator 8 arranged on one side of the lifting surface of the magnetic body 6; here, during the raising of the magnetic body 6, the magnetic flap indicator 8 changes the state of the magnetic flap 821 at the corresponding height by the magnetic coupling action with the magnetic body 6, indicating the scale value of the magnetic body 6 at the corresponding height.
Compared with the first embodiment, the automatic monitoring device for the Christmas tree lifting of the embodiment is only provided with the magnetic turning plate indicator 8, and other components are the same as those of the first embodiment, and are not repeated herein.
A third embodiment, as shown in fig. 4, the present invention constructs a christmas tree rise automatic monitoring device, which is suitable for a christmas tree 10, including: the device comprises a fixing component fixedly connected with a Christmas tree 10 and lifted along with the Christmas tree 10, a magnetic body 6 connected with the fixing component and driven to be lifted by the fixing component, and a lifting signal transmitter 4 arranged on one side of a lifting surface of the magnetic body 6; wherein, in the raising process of the magnetic body 6, the raising signal transmitter 4 changes the closing or opening of the magnetic switch at the corresponding height by the magnetic coupling action with the magnetic body 6, and outputs the current signal corresponding to the height of the magnetic body 6.
Compared with the first embodiment, the automatic monitoring device for the Christmas tree elevation of the present embodiment is only provided with the elevation signal transmitter 4, and other components are the same as those of the first embodiment, and are not repeated herein.
In other embodiments, for example, when the magnetic turning plate indicator 8 and/or the lifting signal transmitter 4 are close to the christmas tree body, the magnet can be directly fixed on the christmas tree body, and the magnet drives the magnetic body to move up and down; when the big flange position in production tree below is suitable, only need to be in the same place production tree connecting rod and flange bolt fastening to convert the rising of production tree into the upper and lower displacement of magnetic substance, no longer describe here.
The utility model discloses a fixed subassembly converts the rising of production tree into the displacement of magnetic substance, and the displacement of magnetic substance then can overturn and directly show in the scene on corresponding the scale through the magnetic coupling effect magnetism turn over the piece in turning over the board indicator to magnetism, in order to reach the scene and patrol and examine the function that can normally read, can convert the rising into the analog quantity through rising signal transmission ware in addition and convey away, but realize the function that long-range real time monitoring production tree risees, make production tree rise automatic monitoring device's measurement more accurate stable, the accuracy of the high monitoring of production tree has been improved, can carry out scene and long-range real-time continuous monitoring to the production tree height.
In addition, the tree height of the Christmas tree can be remotely monitored through a remote control room, and data are automatically stored for analyzing the relation between the yield and the tree height; the remote well shut-in can be carried out if the Christmas tree is triggered to alarm at a high height during remote production, so that the production is safer and more reliable; the real-time data of the rise of the Christmas tree can be accurately collected, and an accurate and reliable database is provided for the dynamic analysis of the single well of the Christmas tree.
It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. An automatic monitoring device for the rise of a Christmas tree, suitable for a Christmas tree (10), comprising:
the device comprises a fixing component which is fixedly connected with the Christmas tree (10) and ascends along with the Christmas tree (10), a magnetic body (6) which is connected with the fixing component and drives the Christmas tree to ascend through the fixing component, and a magnetic turning plate indicator (8) and/or an ascending signal transmitter (4) which are arranged on one side of the ascending surface of the magnetic body (6);
wherein, during the raising of the magnetic body (6), the magnetic flap indicator (8) changes the state of the magnetic flap (821) at the corresponding height through the magnetic coupling action with the magnetic body (6) to indicate the scale value of the magnetic body (6) at the corresponding height;
and/or, in the lifting process of the magnetic body (6), the lifting signal transmitter (4) changes the closing or opening of the magnetic switch at the corresponding height through the magnetic coupling action with the magnetic body (6) and outputs a current signal corresponding to the height of the magnetic body (6).
2. The automatic monitoring device for Christmas tree elevation of claim 1, wherein the fixing assembly comprises: the device comprises at least one Christmas tree clip (9) fixed on the Christmas tree (10), a Christmas tree connecting rod (1) with one end fixedly connected with the Christmas tree clip (9), a zero position adjusting knob (2) fixedly connected with the other end of the Christmas tree connecting rod (1), and a connecting wire (5) with one end capable of being curled on the zero position adjusting knob (2);
the other end of the connecting wire (5) is fixedly connected with the magnetic body (6).
3. Christmas tree elevation automatic monitoring device according to claim 2, wherein the magnetic flap indicator (8) comprises: the scale comprises a scale (81) and a magnetic turning plate (82) which is arranged on one side of the scale (81) and is provided with a magnetic turning piece (821) corresponding to each scale;
in the lifting process of the magnetic body (6), the magnetic turning piece (821) is turned over at the position corresponding to the scale through the magnetic coupling effect of the magnetic body (6) and is turned over to the surface with the mark, and the corresponding height change of the magnetic body (6) is displayed.
4. The automatic monitoring device for Christmas tree elevation according to claim 3, wherein in an initial state, the magnetic body (6) is arranged at the zero scale of the scale (81), and the elevation signal transmitter (4) outputs a preset current signal corresponding to the magnetic body (6) when the magnetic body (6) is arranged at the zero scale of the scale (81), wherein the current signal is in a direct proportion to the height.
5. The automatic monitoring device of christmas tree elevation according to claim 1, characterized in that said elevation signal transmitter (4) comprises: a plurality of said magnetic switches vertically disposed within a main conduit (41), resistors connected to said magnetic switches, sensors for acquiring resistance signals, converters for converting said resistance signals into current signals, and transmitters for outputting current signals;
and in the lifting process of the magnetic body (6), the magnetic switch at the corresponding height is closed or disconnected through the magnetic coupling action with the magnetic body, so that the resistance signal is changed, and the current signal corresponding to the height of the magnetic body (6) is converted and output.
6. The automatic monitoring device for Christmas tree elevation of claim 1, further comprising: the barrel body (7) is fixedly placed, the magnetic body (6) is fished in the barrel body (7) through the connecting line (5), and the magnetic body rises along with the Christmas tree (10) in the barrel body (7);
the magnetic turning plate indicator (8) and/or the lifting signal transmitter (4) are fixedly arranged on one side of the cylinder (7).
7. The automatic monitoring device for Christmas tree elevation according to claim 3, wherein a rocker (22) is arranged on the zero adjustment knob (2) for rotating the zero adjustment knob (2) through the rocker in the initial state, and the magnetic body (6) is controlled to be aligned with the zero scale of the scale (81) through the connecting line (5).
8. The automatic monitoring device for Christmas tree elevation of claim 6, further comprising: the perforated flange (3) is arranged at the top of the cylinder body (7) and used for sealing the cylinder body (7), and a middle perforated hole is used for allowing the connecting line (5) to pass through.
9. The automatic monitoring device for Christmas tree elevation according to claim 2, wherein the connecting wire (5) is connected with the zero adjustment knob (2) and then directly placed in the cavity of the Christmas tree connecting rod (1), and the zero adjustment knob (2) is fixed with the Christmas tree connecting rod (1) through a locking pin (21) at the upper part of the Christmas tree connecting rod (1).
10. The automatic monitoring device for Christmas tree elevation according to claim 2, wherein the Christmas tree clamp (9) comprises at least two clamps which are fixed with the Christmas tree (10) through bolts.
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| CN201921328663.0U CN210374916U (en) | 2019-08-15 | 2019-08-15 | Automatic monitoring device for rising of Christmas tree |
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| CN201921328663.0U CN210374916U (en) | 2019-08-15 | 2019-08-15 | Automatic monitoring device for rising of Christmas tree |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440670A (en) * | 2019-08-15 | 2019-11-12 | 中海石油深海开发有限公司 | A kind of production tree raising automated watch-keeping facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440670A (en) * | 2019-08-15 | 2019-11-12 | 中海石油深海开发有限公司 | A kind of production tree raising automated watch-keeping facility |
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