CN210073359U - High-low temperature-resistant and irradiation-resistant multi-core watertight cable - Google Patents
High-low temperature-resistant and irradiation-resistant multi-core watertight cable Download PDFInfo
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- CN210073359U CN210073359U CN201921450477.4U CN201921450477U CN210073359U CN 210073359 U CN210073359 U CN 210073359U CN 201921450477 U CN201921450477 U CN 201921450477U CN 210073359 U CN210073359 U CN 210073359U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a high and low temperature resistant and irradiation resistant multi-core watertight cable, which comprises a conductor, a polyethylene tetrafluoroethylene insulating layer, an isolating layer and a polyvinylidene fluoride watertight protecting sleeve; wherein, the polyethylene tetrafluoroethylene insulating layer wraps the outside of the conductor; the isolating layer wraps the outer parts of the polyethylene tetrafluoroethylene insulating layers of the conductors; the polyvinylidene fluoride watertight protective sleeve wraps the outside of the isolation layer. The watertight cable formed by the polyethylene tetrafluoroethylene insulating layer and the polyvinylidene fluoride watertight protective sleeve after being irradiated by the electron accelerator has good irradiation resistance, can work for a long time at the temperature of-100-200 ℃, and has the effect of high and low temperature resistance. Therefore, the utility model provides a resistant high low temperature is able to bear or endure irradiation multicore watertight cable is having resistant high low temperature and resistant irradiation's effect, and the range of application is wider.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a resistant high low temperature resistant irradiation multicore watertight cable.
Background
With the progress of science and technology, the ocean operation of human beings is more frequent, and watertight cables are widely applied to activities such as ocean bottom monitoring and control. At present, most watertight cables are high-temperature-resistant watertight cables made of tetrafluoroethylene, and have good high-temperature resistance. However, the tetrafluoroethylene high-temperature-resistant watertight cable cannot work well in an irradiation environment due to poor irradiation resistance. For example, when temperature values and water quality parameters of representative detection points in the offshore region cannot be provided for normal operation of a nuclear power plant, safe and stable operation of the nuclear power plant cannot be ensured.
Therefore, the development of the watertight cable which is resistant to high and low temperature and radiation is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a resistant high low temperature resistant multicore watertight cable and processing technology, this multicore watertight cable have resistant high low temperature and resistant effect of irradiation, and the range of application is extensive.
In order to solve the technical problem, the utility model provides a high and low temperature resistant and irradiation resistant multi-core watertight cable, which comprises a conductor, a polyethylene tetrafluoroethylene insulating layer, an isolating layer and a polyvinylidene fluoride watertight protecting sleeve; wherein the polyethylene tetrafluoroethylene insulating layer wraps the outside of the conductor; the isolating layer wraps the outer parts of the polyethylene tetrafluoroethylene insulating layers of the conductors; the polyvinylidene fluoride watertight protective sleeve wraps the outside of the isolation layer.
Preferably, the insulating layer further comprises a filler filled between the insulating layer and the isolation layer.
Preferably, the filler is a single-component room temperature vulcanized silicone rubber filler.
Preferably, the conductor is in particular a silver-plated copper conductor.
Preferably, the thickness of the polyethylene tetrafluoroethylene insulating layer is 0.4-0.5 mm.
Preferably, the thickness of the polyvinylidene fluoride watertight protective sleeve is 0.5-0.6 mm.
Preferably, the number of conductors is in particular four, six, eight or sixteen.
Preferably, the conductor and the polyethylene tetrafluoroethylene insulating layer form a wire core, and the cross section of the wire core is circular.
Preferably, the isolation layer is a polyethylene tetrafluoroethylene isolation layer.
The utility model provides a resistant high low temperature resistant irradiation multicore watertight cable includes conductor, polyethylene tetrafluoroethylene insulating layer, isolation layer and polyvinylidene fluoride watertight protective sheath. After the polyethylene tetrafluoroethylene insulating layer and the polyvinylidene fluoride watertight protective sleeve are subjected to irradiation treatment by an electron accelerator, the formed watertight cable has good irradiation resistance, and the dose can reach 2.0 multiplied by 108 Mrad. The polyethylene tetrafluoroethylene insulating layer after irradiation treatment can work for a long time and has the effects of high and low temperature resistance at the temperature of-100-200 ℃; polyvinylidene fluoride is an excellent waterproof watertight material, so that the polyvinylidene fluoride watertight protective sleeve can effectively prevent water from leaking, and a better watertight effect is achieved. Therefore, the utility model provides a resistant high low temperature is able to bear or endure irradiation multicore watertight cable is having resistant high low temperature and resistant irradiation's effect, and the range of application is wider.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are 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 to those skilled in the art that other drawings can be obtained based on these drawings without inventive work.
FIG. 1 is a structural diagram of a high/low temperature-resistant and radiation-resistant four-core watertight cable provided by the present invention;
FIG. 2 is a structural diagram of a high-temperature and low-temperature resistant and radiation resistant six-core watertight cable provided by the present invention;
FIG. 3 is a structural diagram of the high and low temperature resistant and radiation resistant eight-core watertight cable provided by the present invention;
FIG. 4 is a structural diagram of a sixteen-core watertight cable with high and low temperature resistance and radiation resistance provided by the present invention;
fig. 5 is a flow chart of the processing technology of the high and low temperature resistant and irradiation resistant multi-core watertight cable provided by the utility model.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, the ordinary skilled in the art can obtain all other embodiments without creative work, which all belong to the protection scope of the present invention.
The core of the utility model is to provide a resistant high low temperature resistant irradiation multicore watertight cable and processing technology, this multicore watertight cable has resistant high low temperature and resistant irradiation's effect, and the range of application is extensive.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
Fig. 1 is a structural diagram of a high-low temperature resistant and irradiation resistant four-core watertight cable provided by the utility model. As shown in fig. 1.
In this embodiment, the high-low temperature resistant and irradiation resistant multi-core watertight cable comprises a conductor 1, a polyethylene tetrafluoroethylene insulating layer 2, an isolating layer 4 and a polyvinylidene fluoride watertight protective sleeve 5; wherein, the insulating layer 2 of the polythene tetrafluoroethylene is wrapped outside the conductor 1; the isolating layer 4 wraps the outside of the polyethylene tetrafluoroethylene insulating layer 2 of the plurality of conductors 1; the polyvinylidene fluoride watertight protective sleeve 5 wraps the outside of the isolation layer 4.
Specifically, the conductor 1 in the present embodiment is specifically a silver-plated copper conductor. The polyethylene tetrafluoroethylene insulating layer 2 is formed by directly extruding and coating polyethylene tetrafluoroethylene on the silver-plated copper conductor 1 through a high-temperature extruder, and the polyethylene tetrafluoroethylene insulating layer 2 and the silver-plated copper conductor 1 jointly form a wire core. It should be noted that the cross section of the single wire core is circular; because the cross section of the silver-plated copper conductor 1 is usually circular, the wire core does not need to be processed into the wire core with the circular cross section for a common wire core, but if the cross section of a single manufactured wire core is not circular, the wire core needs to be processed, and the cross section is ensured to be circular.
As can be known to those skilled in the art, the silver-plated copper conductor 1 is formed by twisting a plurality of single-wire silver-plated round copper wires, in one embodiment, the silver content of the single-wire silver-plated round copper wires is 12%, twisting is performed according to a regular twisting manner of "1 + 6" or "1 +6+ 12", and a single-component room-temperature vulcanized silicone rubber water sealant is coated outside the twisted plurality of silver-plated round copper wires to form the silver-plated copper conductor 1.
In one embodiment, the radiation treatment of the core with the insulating layer 2 of poly (ethylene tetrafluoroethylene) using an electron accelerator provides the insulating layer 2 of poly (ethylene tetrafluoroethylene) with good radiation resistance.
In one embodiment, a plurality of wire cores with the polyethylene tetrafluoroethylene insulation layer 2 are stranded by a cabling machine to form a wire harness; and the outer parts of a plurality of wire cores with the polyethylene tetrafluoroethylene insulating layers 2 are wrapped with the isolating layers 4 to form the cable. Further, the isolation layer 4 is specifically a polyethylene tetrafluoroethylene isolation layer 4. The examples are not particularly limited as to the source of the polyethylene tetrafluoroethylene, and polyethylene tetrafluoroethylene known to those skilled in the art may be used, and commercially available products may be used. Due to the adoption of a multi-strand and small-bracket monofilament structure and a multi-strand stranding process, the cable is particularly flexible and can be bent at will.
In specific implementation, as the cross section of each wire core is circular, after a plurality of wire cores are cabled, a large gap can be formed between cables, and the strength of the cable is reduced. In order to avoid the situation, the utility model provides a resistant high low temperature resistant irradiation multicore watertight cable still includes the filler 3 of filling between polyethylene tetrafluoroethylene insulating layer and isolation layer. Specifically, the filler 3 is a single-component room temperature vulcanized silicone rubber filler 3. Before the wire core is wrapped by the isolation layer 4, the single-component room temperature vulcanized silicone rubber filler 3 is firstly used for coating the wire harness, and then the polyethylene tetrafluoroethylene isolation layer 4 is wrapped. The filling between the teflon insulating layer 2 and the isolation layer 4 may be in other manners, and the present invention is not limited thereto.
Specifically, the polyvinylidene fluoride watertight protective sleeve 5 is formed by extruding polyvinylidene fluoride on the outer portion of the cable with the isolation layer 4. The electron accelerator is used for carrying out irradiation treatment on the polyvinylidene fluoride watertight protective sleeve 5, so that the polyvinylidene fluoride watertight protective sleeve 5 has good irradiation resistance while having water tightness.
Further, the thickness of the insulating layer 2 of the polyethylene tetrafluoroethylene is 0.4-0.5 mm. The input cost is reduced while the good insulativity of the wire core is ensured.
Further, the thickness of the polyvinylidene fluoride watertight protective sleeve 5 is 0.5-0.6 mm.
In one embodiment, the number of conductors 1 is in particular four, so as to form a watertight cable with four cores as shown in fig. 1; in particular, the number of conductors 1 may also be six, eight or sixteen. Thereby forming a six, eight or sixteen core watertight cable as shown in figures 2, 3 and 4. It should be noted that, those skilled in the art can select the number of the conductors 1 according to actual needs, so as to realize watertight cables with different core numbers.
The utility model provides a resistant high low temperature resistant irradiation multicore watertight cable includes conductor, polyethylene tetrafluoroethylene insulating layer, isolation layer and polyvinylidene fluoride watertight protective sheath. After the polyethylene tetrafluoroethylene insulating layer and the polyvinylidene fluoride watertight protective sleeve are subjected to irradiation treatment by an electron accelerator, the formed watertight cable has good irradiation resistance, and the dose can reach 2.0 multiplied by 108 Mrad. The polyethylene tetrafluoroethylene insulating layer after irradiation treatment can work for a long time and has the effects of high and low temperature resistance at the temperature of-100-200 ℃; polyvinylidene fluoride is an excellent waterproof watertight material, so that the polyvinylidene fluoride watertight protective sleeve can effectively prevent water from leaking, and a better watertight effect is achieved. Therefore, the utility model provides a resistant high low temperature is able to bear or endure irradiation multicore watertight cable is having resistant high low temperature and resistant irradiation's effect, and the range of application is wider.
In one embodiment, the hardware system required for processing the high-temperature and low-temperature resistant and irradiation resistant multi-core watertight cable comprises: a high-temperature extruder for extruding the polyethylene tetrafluoroethylene onto the silver-plated copper conductor 1; a cabling machine for stranding the wire cores to form a wire harness; the electron accelerator is used for carrying out irradiation modification treatment on the polyethylene tetrafluoroethylene insulating layer 2 and the polyvinylidene fluoride watertight protective sleeve 5.
Fig. 5 is a flow chart of the processing technology of the high and low temperature resistant and irradiation resistant multi-core watertight cable provided by the utility model. As shown in fig. 5, the processing technology of the high-temperature and low-temperature resistant and irradiation resistant multi-core watertight cable comprises the steps of S101-S105:
step S101: extruding and wrapping the polyethylene tetrafluoroethylene on the conductor to form a polyethylene tetrafluoroethylene insulating layer;
step S102: carrying out irradiation treatment on the polyethylene tetrafluoroethylene insulating layer by using an electron accelerator;
step S103: stranding a plurality of conductors with polyethylene tetrafluoroethylene insulating layers after irradiation treatment, and wrapping an isolating layer outside the polyethylene tetrafluoroethylene insulating layers;
step S104: extruding polyvinylidene fluoride to wrap the outside of the isolation layer to form a polyvinylidene fluoride watertight protective sleeve;
step S105: and (3) carrying out irradiation treatment on the polyvinylidene fluoride watertight protective sleeve by using an electron accelerator.
Since the embodiment of the processing technology part corresponds to the embodiment of the high-low temperature resistant and irradiation resistant multi-core watertight cable part, please refer to the description of the embodiment of the high-low temperature resistant and irradiation resistant multi-core watertight cable part for the embodiment of the processing technology part, and the detailed description thereof is omitted here for the moment.
The utility model provides a processing technology of resistant high low temperature resistant irradiation multicore watertight cable, including step S101: extruding and wrapping the polyethylene tetrafluoroethylene on the conductor to form a polyethylene tetrafluoroethylene insulating layer; step S102: carrying out irradiation treatment on the polyethylene tetrafluoroethylene insulating layer by using an electron accelerator; step S103: stranding a plurality of conductors with polyethylene tetrafluoroethylene insulating layers after irradiation treatment, and wrapping an isolating layer outside the polyethylene tetrafluoroethylene insulating layers; step S104: extruding polyvinylidene fluoride to wrap the outside of the isolation layer to form a polyvinylidene fluoride watertight protective sleeve; step S105: and (3) carrying out irradiation treatment on the polyvinylidene fluoride watertight protective sleeve by using an electron accelerator. In the processing technology, the polyethylene tetrafluoroethylene insulating layer and the polyvinylidene fluoride watertight protective sleeve are subjected to irradiation treatment by an electron accelerator, so that the formed watertight cable has good irradiation resistance, and the dosage can reach 2.0 multiplied by 108 Mrad. The polyethylene tetrafluoroethylene insulating layer after irradiation treatment can work for a long time and has the effects of high and low temperature resistance at the temperature of-100-200 ℃; polyvinylidene fluoride is an excellent waterproof watertight material, so that the polyvinylidene fluoride watertight protective sleeve can effectively prevent water from leaking, and a better watertight effect is achieved. Therefore, the utility model provides a resistant high low temperature is able to bear or endure irradiation multicore watertight cable is having resistant high low temperature and resistant irradiation's effect, and the range of application is wider.
It is right above that the utility model provides a resistant high low temperature resistant irradiation multicore watertight cable and processing technology have introduced in detail. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the processing technology disclosed in the embodiment, since the processing technology corresponds to the high-low temperature resistant and irradiation resistant multi-core watertight cable disclosed in the embodiment, the description is relatively simple, and the relevant points can be obtained by referring to the description of the method part. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
It should also be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. A high-low temperature resistant and irradiation resistant multi-core watertight cable is characterized by comprising a conductor, a polyethylene tetrafluoroethylene insulating layer, an isolating layer and a polyvinylidene fluoride watertight protective sleeve; wherein the polyethylene tetrafluoroethylene insulating layer wraps the outside of the conductor; the isolating layer wraps the outer parts of the polyethylene tetrafluoroethylene insulating layers of the conductors; the polyvinylidene fluoride watertight protective sleeve wraps the outside of the isolation layer.
2. The high and low temperature and radiation resistant multi-core watertight cable according to claim 1, further comprising a filler filled between the polyethylene tetrafluoroethylene insulation layer and the isolation layer.
3. The high and low temperature and radiation resistant multi-core watertight cable as claimed in claim 2, wherein the filler is a single-component room temperature vulcanized silicone rubber filler.
4. The high and low temperature and radiation resistant multicore watertight cable of claim 1, wherein the conductor is a silver-plated copper conductor.
5. The high and low temperature and radiation resistant multi-core watertight cable according to claim 1, wherein the thickness of the polyethylene tetrafluoroethylene insulation layer is 0.4-0.5 mm.
6. The high and low temperature resistant and irradiation resistant multi-core watertight cable according to claim 1, wherein the thickness of the polyvinylidene fluoride watertight protective sleeve is 0.5-0.6 mm.
7. The high and low temperature and radiation resistant multi-core watertight cable according to claim 1, wherein the number of the conductors is four, six, eight or sixteen.
8. The high and low temperature and radiation resistant multi-core watertight cable according to claim 1, wherein the conductor and the polyethylene tetrafluoroethylene insulation layer form a core, and the cross section of the core is circular.
9. The high and low temperature and radiation resistant multicore watertight cable of claim 1, wherein the isolation layer is a polyethylene tetrafluoroethylene isolation layer.
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| CN201921450477.4U CN210073359U (en) | 2019-09-02 | 2019-09-02 | High-low temperature-resistant and irradiation-resistant multi-core watertight cable |
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| CN201921450477.4U CN210073359U (en) | 2019-09-02 | 2019-09-02 | High-low temperature-resistant and irradiation-resistant multi-core watertight cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415871A (en) * | 2019-09-02 | 2019-11-05 | 中天科技装备电缆有限公司 | A kind of high-low temperature resistant radiation resistance multicore watertight cable and processing technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110415871A (en) * | 2019-09-02 | 2019-11-05 | 中天科技装备电缆有限公司 | A kind of high-low temperature resistant radiation resistance multicore watertight cable and processing technology |
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