CN216250048U

CN216250048U - Signal cable for geological exploration

Info

Publication number: CN216250048U
Application number: CN202121590963.3U
Authority: CN
Inventors: 胡智怡
Original assignee: Panjin Liaohe Oilfield Communication Industry Co ltd
Current assignee: Panjin Liaohe Oilfield Communication Industry Co ltd
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2022-04-08
Anticipated expiration: 2031-07-14

Abstract

The utility model discloses a signal cable for geological exploration, which comprises a cable main body, a dichloroethylene insulating layer, a semiconductive buffer water-blocking layer, a fire-resistant mica tape, a tensile wear-resistant layer, a tinned steel wire braided shielding layer and a polyurethane insulating layer, wherein the dichloroethylene insulating layer is arranged on the inner side of the cable main body, an outer sheath is wrapped inside the dichloroethylene insulating layer, the semiconductive buffer water-blocking layer is wrapped on the inner side of the outer sheath, the tinned steel wire braided shielding layer is arranged on the outer side of a copper conductor, the polyethylene insulating layer is wrapped on the inner side of the tinned steel wire braided shielding layer, and the polyurethane insulating layer is wrapped on the inner side of the polyethylene insulating layer. The cable is provided with the protective layer and the reinforcing piece, so that the tensile strength and weldability of the cable are improved; the anti-interference cable is provided with the tensile wear-resistant layer and the fire-resistant mica tape, so that the tensile strength, the wear resistance, the corrosion resistance and the high-temperature resistance of the insulating layer are improved, and the anti-interference performance of the cable is improved due to the arrangement of the tinned steel wire braided shielding layer.

Description

Signal cable for geological exploration

Technical Field

The utility model relates to the technical field of cables, in particular to a signal cable for geological exploration.

Background

With the continuous progress of science and technology, the physical exploration work of the earth by human beings is continuously expanded and deepened. Seawater or fresh water occupies almost three quarters of the earth's surface, and thus seismic exploration in water is becoming more and more widespread. The cable is a conducting nerve in geophysical exploration, and signals acquired in seismic exploration are mainly transmitted by a special exploration cable. At present, chemical fiber is generally adopted for the load-bearing tension wire of the geophysical exploration cable, because the material is an insulating material, the tensile strength is relatively high, and the density is relatively low, but the following problems exist: the cable can be impacted by various undercurrents and external forces in seawater, the buoyancy generated when an object sinks in the seawater, particularly the seawater, is quite large, and the dead weight of the cable sometimes is difficult to sink smoothly and stably at a certain depth in the seawater; in order to increase the construction of the cable and to keep it stable, lead blocks have to be added on the outside of the cable at intervals, thus causing inconvenience and increase in construction and cost.

At present, most of signal cables for geological exploration are common cables, and copper wires or galvanized steel wires are used as conductors; polyvinyl chloride or polyethylene is used as insulation; the signal cable in the prior art has the defects of poor shielding effect, low strength, corrosion resistance and poor high-temperature environment performance, and needs a signal cable for geological exploration to solve the problem.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a signal cable for geological exploration, which solves the above problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a signal cable for geological exploration, includes that cable main part, dichloroethylene insulating layer, semiconduction buffering water-blocking layer, fire resistant mica tape, tensile wearing layer, tinned steel wire weave shielding layer and polyurethane insulating layer, the cable main part inboard is equipped with the dichloroethylene insulating layer, the inside parcel of dichloroethylene insulating layer has the oversheath, the inboard parcel of oversheath has semiconduction buffering water-blocking layer, the inboard parcel of semiconduction buffering water-blocking layer has fire resistant mica tape, the inboard parcel in fire resistant mica tape has the tensile wearing layer, tensile wearing layer inboard is equipped with the copper conductor, the copper conductor outside is equipped with the shielding layer is woven to the tinned steel wire, the inboard parcel of tinned steel wire weave the shielding layer has the polyethylene insulating layer, the inboard parcel of polyethylene insulating layer has the polyurethane insulating layer.

Furthermore, an inner sheath wraps the inner side of the tensile wear-resistant layer, and the thickness of the inner sheath is 0.25 mm.

Furthermore, the inner side of the inner sheath is wrapped with a protective layer, and the thickness of the protective layer is 0.15 mm.

Further, the thickness of the tinned steel wire braided shielding layer is 0.25mm, the thickness of the polyurethane insulating layer is 0.25mm, and the thickness of the polyurethane insulating layer is the same as that of the tinned steel wire braided shielding layer.

Furthermore, the inner side of the polyurethane insulating layer is wrapped with a filling layer, and the thickness of the filling layer is 0.55 mm.

Further, the outer sheath is a PUR polyurethane sheath material with high import wear resistance and excellent mechanical property.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the utility model relates to a signal cable for geological exploration, wherein the cable arranged in the device is provided with a protective layer and a reinforcing piece, so that the tensile strength and weldability of the cable are improved; be equipped with tensile wearing layer and fire resistant mica tape, improved the tensile strength, wear resistance, corrosion resisting property and the high temperature resistance ability of insulating layer, be equipped with tinned steel wire and weave the shielding layer, improved the interference resistance ability of cable, through the safety of the whole electric wire of polyurethane insulating layer protection, the situation that prevents to appear the electric leakage appears, this device has solved prior art and has had that intensity is low, corrosion resistance is poor, the service temperature is low, the technical problem that the interference killing feature is poor, be fit for using widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of a signal cable for geological exploration, according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of a signal cable for geological exploration, according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a copper conductor of a signal cable for geological exploration, according to an embodiment of the utility model.

Reference numerals:

1. a cable body; 2. a dichloroethylene insulating layer; 3. an outer sheath; 4. a semiconductive buffer water-resistant layer; 5. fire-resistant mica tapes; 6. a tensile wear-resistant layer; 7. an inner sheath; 8. a protective layer; 9. a copper conductor; 10. a reinforcement; 11. a tinned steel wire braided shielding layer; 12. a polyethylene insulating layer; 13. a polyurethane insulating layer; 14. And (5) filling the layer.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1-3, a signal cable for geological exploration according to an embodiment of the present invention includes a cable main body 1, a dichloroethylene insulating layer 2, a semi-conductive buffer water-blocking layer 4, a fire-resistant mica tape 5, a tensile wear-resistant layer 6, a tinned steel wire braided shield layer 11, and a polyurethane insulating layer 13, wherein the dichloroethylene insulating layer 2 is disposed on an inner side of the cable main body 1, an outer sheath 3 is wrapped inside the dichloroethylene insulating layer 2, the semi-conductive buffer water-blocking layer 4 is wrapped inside the outer sheath 3, the fire-resistant mica tape 5 is wrapped inside the semi-conductive buffer water-blocking layer 4, the tensile wear-resistant layer 6 is wrapped inside the fire-resistant mica tape 5, a copper conductor 9 is disposed inside the tensile wear-resistant layer 6, the tinned steel wire braided shield layer 11 is disposed outside the copper conductor 9, and the polyethylene insulating layer 12 is wrapped inside the tinned steel wire braided shield layer 11, the inner side of the polyethylene insulating layer 12 is wrapped with the polyurethane insulating layer 13.

According to the scheme, the inner sheath 7 wraps the inner side of the tensile wear-resistant layer 6, the thickness of the inner sheath 7 is 0.25mm, the inner side of the inner sheath 7 is wrapped with the protective layer 8, the protective layer 8 is used for protecting the cable, the thickness of the protective layer 8 is 0.15mm, the thickness of the tinned steel wire woven shielding layer 11 is 0.25mm, the thickness of the polyurethane insulating layer 13 is the same as that of the tinned steel wire woven shielding layer 11, the inner side of the polyurethane insulating layer 13 is wrapped with the filling layer 14, the thickness of the filling layer 14 is 0.55mm, and the outer sheath 3 is a PUR polyurethane sheath material which is high in inlet wear resistance and excellent in mechanical property.

In specific application, the signal cable for geological exploration is provided with the protective layer 8 and the reinforcing piece 10, so that the tensile strength and weldability of the cable are improved; be equipped with tensile wearing layer 6 and fire resistant mica tape 5, improved the tensile strength of insulating layer, wear resistance, corrosion resisting property and high temperature resistance, be equipped with tinned steel wire and weave shielding layer 11, improved the interference resistance of cable, through the safety of polyurethane insulating layer 13 protection whole electric wire, the situation that prevents to appear the electric leakage appears, this device has solved prior art and has had that intensity is low, corrosion resistance is poor, the service temperature is low, the technical problem that the interference killing feature is poor, be fit for using widely.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The signal cable for geological exploration is characterized by comprising a cable main body (1), a dichloroethylene insulating layer (2), a semi-conductive buffering water-blocking layer (4), a fire-resistant mica tape (5), a tensile wear-resistant layer (6), a tinned steel wire braided shielding layer (11) and a polyurethane insulating layer (13), wherein the dichloroethylene insulating layer (2) is arranged on the inner side of the cable main body (1), an outer sheath (3) is wrapped inside the dichloroethylene insulating layer (2), the semi-conductive buffering water-blocking layer (4) is wrapped on the inner side of the outer sheath (3), the fire-resistant mica tape (5) is wrapped on the inner side of the semi-conductive buffering water-blocking layer (4), the tensile wear-resistant layer (6) is wrapped on the inner side of the fire-resistant mica tape (5), a copper conductor (9) is arranged on the inner side of the tensile wear-resistant layer (6), the tinned steel wire braided shielding layer (11) is arranged on the outer side of the copper conductor (9), the inner side of the tinned steel wire braided shielding layer (11) is wrapped with a polyethylene insulating layer (12), and the inner side of the polyethylene insulating layer (12) is wrapped with a polyurethane insulating layer (13).

2. A signal cable for geological exploration, according to claim 1, characterized in that said tensile and wear-resistant layer (6) is wrapped inside by an inner sheath (7), said inner sheath (7) having a thickness of 0.25 mm.

3. A signal cable for geological exploration, according to claim 2, characterized in that said inner sheath (7) is internally coated with a protective layer (8), said protective layer (8) having a thickness of 0.15 mm.

4. A signal cable for geological exploration, according to claim 1, characterized in that said braided shield of tinned steel wires (11) has a thickness of 0.25mm, said insulating layer of polyurethane (13) has the same thickness as said braided shield of tinned steel wires (11).

5. A signal cable for geological exploration, according to claim 1, characterized in that said polyurethane insulating layer (13) is internally wrapped with a filler layer (14), the thickness of the filler layer (14) being 0.55 mm.

6. A signal cable for geological exploration, according to claim 1, characterized by that said outer sheath (3) is a PUR polyurethane sheath material with high wear resistance and excellent mechanical properties for import.