Photoelectric composite load-bearing detection cable for combustible ice exploitation
Technical Field
The application relates to the field of cables, in particular to a photoelectric composite load-bearing detection cable for combustible ice exploitation.
Background
The load bearing detection cable is suitable for oil mine detection cables which bear mechanical load to carry out electric measurement, and the cables are used for logging, perforation, coring and other operations of various oil and gas wells; the method can also be used for marine investigation, river, estuary, water conservancy and hydrologic measurement, coal field geological exploration, geothermal well logging and other aspects. As a connecting wire for measuring the hanging weight instrument. Because the service environment of the load-bearing detection cable is complex, the required strength is high, the requirements on the pull rope resistance and the extrusion resistance are high, the waterproof requirements are met in some environments, photoelectric signals are required to be transmitted sometimes, and the requirements on signal transmission are high. The existing load-bearing detection cables are more, but cannot meet the requirement of all the use.
Disclosure of Invention
The application aims to: the application aims to overcome the defects of the prior art and provides a photoelectric composite load-bearing detection cable for combustible ice exploitation.
The technical scheme is as follows: the load-bearing detection cable sequentially comprises an outer protective sleeve, an outer armor layer and an outer insulating layer from outside to inside, wherein an outer stainless steel tube is arranged in the outer insulating layer, a plurality of compression-resistant units are connected between the outer stainless steel tube and the outer insulating layer, each compression-resistant unit comprises a first connecting part connected with the outer insulating layer, a second connecting part connected with the outer stainless steel tube and a buffer tube connected between the first connecting part and the second connecting part, the space between the outer insulating layer and the outer stainless steel tube is divided into a plurality of compression-resistant rope accommodating spaces by the plurality of compression-resistant units, one compression-resistant rope is arranged in each compression-resistant rope accommodating space, and elastic balls are arranged in each compression-resistant rope accommodating space; the stainless steel pipe comprises an outer stainless steel pipe, and is characterized in that an inner stainless steel pipe is arranged in the outer stainless steel pipe, a plurality of supporting units are connected between the outer stainless steel pipe and the inner stainless steel pipe, each supporting unit comprises a first arc-shaped unit, a second arc-shaped unit and a third connecting part, the cross section of each first arc-shaped unit is fixed with the outer stainless steel pipe, the cross section of each second arc-shaped unit is fixed with the inner stainless steel pipe, the third connecting part is connected between the first arc-shaped unit and the second arc-shaped unit, an optical unit and an electrical unit are arranged between the outer stainless steel pipe and the inner stainless steel pipe, each optical unit comprises an optical fiber protecting sleeve and a plurality of optical fibers located in the optical fiber protecting sleeve, and each electrical unit sequentially comprises an inner protecting sleeve, an inner armor layer, a shielding layer, an inner insulating layer and a conductor from outside to inside.
Further, the compression-resistant units are 8, and the tensile ropes are 8, 8 compression-resistant units and 8 tensile ropes are alternately arranged at intervals.
Further, the number of the supporting units is 4.
Further, the number of the optical units is more than or equal to 2, and the number of the electrical units is more than or equal to 2; and water-blocking glue is filled between the inner stainless steel tube and the outer stainless steel tube.
Further, the buffer tube is a rubber tube, and the outer insulating layer and the inner insulating layer are both polyethylene insulating layers; the shielding layer is woven by tinned copper wires.
Further, the first, second and third connecting parts are all sheet-shaped extending along the length direction of the cable.
Further, the inner layer stainless steel pipe is internally fixed with a first segmentation unit with an arc-shaped cross section and a second segmentation unit with an arc-shaped cross section, a first wire is arranged between the first segmentation unit and the inner layer stainless steel pipe, a first insulating layer is arranged outside the first wire, a second wire is arranged between the second segmentation unit and the inner layer stainless steel pipe, a second insulating layer is arranged outside the second wire, a plurality of first elastic connecting columns and a plurality of second elastic connecting columns are internally fixed in the inner layer stainless steel pipe, the quantity of the first elastic connecting columns and the quantity of the second elastic connecting columns are equal, a first plastic sheet is fixed at the end part of the first elastic connecting column, a first metal sheet is fixed at the first plastic sheet, a second plastic sheet is fixed at the end part of the second elastic connecting column, each first metal sheet is connected with the first wire through a third wire, each second metal sheet is connected with the second wire through a fourth wire, a fourth insulating layer is arranged outside the third wire, and two plastic support columns are connected between each first plastic sheet and each second plastic sheet.
Further, the distance between two adjacent first elastic connecting posts is more than 20 cm.
Further, a power supply is connected between the first and second wires, and an indication unit is arranged at the first wire.
Further, the indication unit is an indication lamp.
The beneficial effects are that: the cable is internally provided with the anti-extrusion unit, and a plurality of anti-pulling ropes are integrated, so that the cable has a good tensile effect and a good anti-extrusion effect. And can be waterproof and can transmit photoelectric composite signals. And when the extrusion is excessive, the alarm can be given out timely.
Drawings
FIG. 1 is a schematic cross-sectional view of a cable;
FIG. 2 is a schematic view of the inside of an inner stainless steel tube;
fig. 3 is an equivalent circuit diagram for detecting whether or not the extrusion is excessive.
Detailed Description
Reference numerals: 1.1 an outer protective sleeve; 1.2 an outer armor layer; 1.3 an outer insulating layer; 2.1 a first connection; 2.2 a second connection; 2.3 buffer tube; 2.4 elastic ball; 2.5 resistance to pull cords; 3.1 inner stainless steel tube; 3.2 stainless steel tube of outer layer; 5 conductors; 5.1 an inner insulating layer; 5.2 a shielding layer; 5.3 an inner armor layer; 5.4 an inner protective sleeve; 4.1 a first segmentation unit; 4.2 a first insulating layer; 4.3 a first wire; 4.4 third wires; 10.1 a second dividing unit; 10.2 a second insulating layer; 10.3 a second wire; 10.4 fourth wires; 6.1 a first elastic connection post; 6.2 a first plastic sheet; 6.3 a first metal sheet; 6.4 plastic support posts; 6.5 a second metal sheet; 6.6 a second plastic sheet; 6.7 second elastic connection column; 7.1 a power supply; 7.2 an indication unit; 3.3 a third connection; 3.3.1 a first arcuate unit; 3.3.2 second arcuate units; 9 optical fiber protecting sleeves; 9.1 optical fiber.
The load-bearing detection cable sequentially comprises an outer protective sleeve 1.1, an outer armor layer 1.2 and an outer insulation layer 1.3 from outside to inside, wherein an outer stainless steel pipe 3.2 is arranged in the outer insulation layer, a plurality of compression-resistant units are connected between the outer stainless steel pipe and the outer insulation layer, each compression-resistant unit comprises a first connecting part 2.1 connected with the outer insulation layer, a second connecting part 2.2 connected with the outer stainless steel pipe and a buffer pipe 2.3 connected between the first connecting part and the second connecting part, the space between the outer insulation layer and the outer stainless steel pipe is divided into a plurality of tension-resistant rope accommodating spaces by the plurality of compression-resistant units, one tension-resistant rope 2.5 is arranged in each tension-resistant rope accommodating space, and elastic balls 2.4 are also arranged in each tension-resistant rope accommodating space; the stainless steel pipe comprises an outer stainless steel pipe, and is characterized in that an inner stainless steel pipe 3.1 is arranged in the outer stainless steel pipe, a plurality of supporting units are connected between the outer stainless steel pipe and the inner stainless steel pipe, each supporting unit comprises a first arc-shaped unit 3.3.1 with an arc-shaped section fixed to the outer stainless steel pipe, a second arc-shaped unit 3.3.2 with an arc-shaped section fixed to the inner stainless steel pipe, and a third connecting part 3.3 connected between the first arc-shaped unit and the second arc-shaped unit, an optical unit and an electrical unit are arranged between the outer stainless steel pipe and the inner stainless steel pipe, each optical unit comprises an optical fiber protecting sleeve and a plurality of optical fibers located in the optical fiber protecting sleeve, and each electrical unit sequentially comprises an inner protecting sleeve 5.4, an inner armor layer 5.3, a shielding layer 5.2, an inner insulating layer 5.1 and a conductor 5 from outside to inside.
The compression-resistant units are 8, and the tensile ropes are 8, and the 8 compression-resistant units and the 8 tensile ropes are alternately arranged at intervals. The number of the supporting units is 4. The number of the optical units is more than or equal to 2, and the number of the electrical units is more than or equal to 2; and water-blocking glue is filled between the inner stainless steel tube and the outer stainless steel tube. The buffer tube is a rubber tube, and the outer insulating layer and the inner insulating layer are both polyethylene insulating layers; the shielding layer is woven by tinned copper wires. The first, second and third connecting parts are all sheet-shaped extending along the length direction of the cable.
As shown in fig. 1 and 2, the cable of the application comprises 8 tensile ropes, and has good tensile effect. As the compression-resistant chamber is actually formed between the outer insulating layer and the outer stainless steel tube, the compression-resistant chamber is internally provided with a plurality of compression-resistant units, so that the compression-resistant effect is good. And a plurality of supporting units are arranged between the inner stainless steel tube and the outer stainless steel tube, so that the compression resistance effect is further improved. In addition, the water-blocking glue can play a role in blocking water. Optical fibers and conductors may transmit optical electrical signals. And when the extrusion is excessive, the cable is easy to damage, the signal transmission is affected, and in order to detect the extrusion is excessive, the following scheme is designed:
the inner stainless steel tube is internally fixed with a first segmentation unit 4.1 with an arc-shaped cross section and a second segmentation unit 10.1 with an arc-shaped cross section, a first conducting wire 4.3 is arranged between the first segmentation unit and the inner stainless steel tube, a first insulating layer 4.2 is arranged outside the first conducting wire, a second conducting wire 10.3 is arranged between the second segmentation unit and the inner stainless steel tube, a second insulating layer 10.2 is arranged outside the second conducting wire, a plurality of first elastic connecting columns 6.1 and a plurality of second elastic connecting columns 6.7 are fixed in the inner stainless steel tube, the quantity of the first elastic connecting columns and the quantity of the second elastic connecting columns are equal, a first plastic sheet 6.2 is fixed at the end part of the first elastic connecting column, a second plastic sheet 6.6 is fixed at the end part of the second elastic connecting column, a second metal sheet 6.5 is fixed at the second plastic sheet, each first metal sheet is connected with the first conducting wire through a third conducting wire, a plurality of first elastic connecting columns 6.1 and a plurality of second elastic connecting columns are fixed at the end part of the second plastic sheet, each second metal sheet is connected with the first conducting wire through a third conducting wire, and each second plastic sheet 4.4 is connected with the fourth conducting wire through the fourth conducting wire 4. The distance between two adjacent first elastic connecting posts is more than 20 cm. A power supply is connected between the first wire and the second wire, and an indication unit is arranged at the first wire. The indicating unit is an indicating lamp.
A row of first elastic connecting columns and a row of second elastic connecting columns are arranged in the inner layer stainless steel tube, and each first metal sheet faces one second metal sheet; the plastic support column in the inner layer stainless steel tube is made of hard plastic, and the compression-resistant unit and the support unit form compression-resistant effect under normal conditions. The plastic support post is non-breakable. Therefore, the first metal sheet and the second metal sheet can not be contacted, and the indicator lamp can not be lightened. When the cable is excessively extruded, the plastic support column is broken, and the first metal sheet and the second metal sheet are contacted, so that a user knows that the extrusion is excessively performed inside the cable. The cable is likely to be damaged. Reminding the user to replace the cable, etc. Of course, besides the way of using the indicator lamp, the current at the first wire can be detected, so that more information can be obtained, and whether the first metal sheet and the second metal sheet are in contact or not, and even about how much of the first metal sheet and the second metal sheet are in contact, can be known.
While the application has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the scope of the application as defined in the following claims.