CN210271864U - Novel this ampere of cable is used in explosion-proof place of environmental protection - Google Patents
Novel this ampere of cable is used in explosion-proof place of environmental protection Download PDFInfo
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- CN210271864U CN210271864U CN201921542293.0U CN201921542293U CN210271864U CN 210271864 U CN210271864 U CN 210271864U CN 201921542293 U CN201921542293 U CN 201921542293U CN 210271864 U CN210271864 U CN 210271864U
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Abstract
The utility model discloses a novel this ampere of cable that explosion-proof site of environmental protection was used belongs to cable application technical field, a novel this ampere of cable that explosion-proof site of environmental protection was used, including three cable core, every the inside of cable core is equipped with the sinle silk of two sets of pair twists, every group the sinle silk all includes a copper conductor, around package at the first semi-conductive nylon tape in the outside of copper conductor and the cross-linked polyethylene insulating layer of crowded package in the first semi-conductive nylon tape outside, can realize insulating, the shielding property of preferred, can effectually prevent electromagnetic interference, receive external magnetic field interference power little, and prevent fires, explosion-proof quality is excellent, and the security performance is good, and intensity is high, and resistance to compression, pressure resistance are good, have solved current cable physical properties poor, when burning smoke volume is big, the burning can produce a large amount of poisonous harmful gas's problem. Compared with the traditional intrinsic safety cable, all the performances of the intrinsic safety cable can reach or even exceed the national standard requirements, and the intrinsic safety cable is superior to the existing similar cable.
Description
Technical Field
The utility model relates to a cable application technology field, more specifically say, relate to a novel this ampere of cable is used in explosion-proof site of environmental protection.
Background
A cable is a rope-like cable made up of several or groups of conductors (at least two per group) twisted together, each group of conductors being insulated from each other and often twisted around a center, the entire outer surface being covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation.
With the rapid development of scientific technology and the common application of electronic control technology, more and more electrical parts and more electric wires are available, and especially, the explosion-proof property of the cable is required to be higher and higher in industries such as chemistry, petroleum and the like. The problem to be solved is how to arrange a large number of wire harnesses in explosion-proof places such as chemical engineering and the like more safely and reasonably, so that the process of industrial manufacturing and production is safer, and the problem is faced by explosion-proof places such as chemical engineering and the like.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a novel this ampere of cable is used in explosion-proof site of environmental protection can realize the insulation of preferred, shielding property, can effectually prevent electromagnetic interference, receives external magnetic field interference power little, and fire prevention, explosion-proof capability are excellent, the security performance is good, intensity is high, resistance to compression, pressure resistance are good, it is poor to have solved current cable physical properties, smoke volume is big when burning, the burning can produce a large amount of poisonous harmful gas's problem.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
The novel intrinsic safety cable for the environment-friendly explosion-proof site comprises three cable cores, wherein two groups of twisted cable cores are arranged inside each cable core, each group of cable cores comprises a copper conductor, a first semi-conductive nylon belt wrapped on the outer side of the copper conductor and a cross-linked polyethylene insulating layer extruded on the outer side of the first semi-conductive nylon belt, the cable core also comprises a first polyester tape, a first tinned copper wire braided shielding layer and a second polyester tape which are wrapped outside the two groups of cable cores from inside to outside, a triangular rubber framework is attached between every two adjacent cable cores, a fiber filling layer is filled inside each triangular rubber framework, and a third polyester tape is wrapped on the outer sides of the three cable cores, and a second semi-conductive nylon tape, a second tinned copper wire braided shielding layer, an armor protective layer and a low-smoke halogen-free flame-retardant irradiation cross-linked polyolefin sheath are sequentially wrapped on the outer side of the third polyester tape from inside to outside.
Furthermore, three cable cores are arranged in a triangular mode and are arranged in a contact mode.
Furthermore, the copper conductor is made of No. 1 purple impure copper to form a solid copper conductor, so that virtual connection of the cable under the condition of being connected with equipment can be avoided, the conductor is more round, and an electric field outside the conductor is more uniform.
Furthermore, glass silk floss filling layers are filled in inner gaps of the first polyester belt and the third polyester belt, and the glass silk floss has good fireproof and fire-resistant capabilities, so that the fireproof performance of the cable is effectively improved.
Furthermore, the fiber filling layer is formed by mixing glass fibers and polypropylene fibers according to a mass ratio of 2:1, and the fiber filling layer is filled in the triangular rubber framework, so that the compression buffering performance of the triangular rubber framework can be effectively enhanced, and the strength of the cable is effectively improved.
Furthermore, a filling pipe is arranged inside the third polyester belt, a mouse repellent is filled inside the filling pipe, the mouse repellent is a solid mouse repellent, and the mouse repellent can be used for repelling mice so that the mice do not want to get close to the cable, and therefore the cable is effectively protected from being bitten by the mice.
Furthermore, the armor protective layer adopts the aluminum alloy, and the armor layer that the aluminum alloy was made can form effective protection to the cable wholly, improves the bulk strength of cable.
Further, the preparation method of the low-smoke halogen-free flame-retardant irradiation cross-linked polyolefin sheath comprises the following steps: according to the parts by weight, 100-120 parts of matrix resin, 50-60 parts of tributyl phosphate, 10-20 parts of graphite, 5-10 parts of dibutyl hydroxy toluene, 10-20 parts of modified argil, 4-8 parts of diamond and 2-4 parts of vinyl triethoxysilane coupling agent are banburied by a mixer at 180 ℃, and then the low-smoke halogen-free flame-retardant irradiation crosslinking polyolefin sheath is obtained through twin-screw extrusion, thin passing and vulcanization.
Furthermore, the matrix resin is prepared by mixing 40-80 parts of ethylene-vinyl acetate copolymer, 20-35 parts of linear low-density polyethylene and 20-30 parts of epoxy type reaction compatilizer.
Further, the preparation method of the modified argil comprises the following steps: adding 30-45 parts of argil, 5-10 parts of toluene, 10-15 parts of ethylene glycol monomethyl ether and 15-25 parts of vinyl triethoxysilane coupling agent into a supercritical reaction device according to parts by weight, sealing, introducing carbon dioxide to 25-45MPa, reacting for 1.5h at 65-75 ℃, removing the pressure of the carbon dioxide, filtering, and drying in vacuum to obtain silane coupling agent modified argil; according to parts by weight, 20-25 parts of silane coupling agent modified argil, 20-40 parts of glutaraldehyde solution with the mass fraction of 8% and 20-30 parts of xanthan gum are taken, stirred and reacted for 2-3.5 hours at the temperature of 55-70 ℃, then 10-20 parts of tannic acid and 5-10 parts of dicumyl peroxide are added, stirred for 2-4 hours, pressure relief is carried out, centrifugal separation is carried out, washing is carried out, and vacuum drying is carried out, so that the modified argil is obtained.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) the triangular rubber framework is arranged between the cable cores in the cable, so that the compression resistance and the toughness of the cable are effectively improved, and meanwhile, the cable cores can be extruded and positioned by the triangular rubber framework, so that the cable cores are effectively prevented from shifting in the cable; meanwhile, the fiber filling layer is filled in the triangular rubber framework, so that the compression buffering performance of the triangular rubber framework can be effectively enhanced, and the strength of the cable is effectively improved.
(2) A layer of semiconductive nylon belt is wrapped outside the conductor, so that the effects of homogenizing an electric field around the conductor and reducing capacitance and inductance are achieved; and a crosslinked polyethylene insulating layer is adopted for insulation, and the crosslinked polyethylene is a nonlinear material and has a better insulating effect.
(3) The ultra-shielding combination of the semi-conductive nylon belt and the tinned copper wire shielding layer is adopted, the shielding effect between cable cores and the shielding effect on the outside of the cable are better, and the explosion-proof characteristic of the cable is better.
(4) The whole cable is protected by adopting the low-smoke halogen-free flame-retardant irradiation crosslinking polyolefin sheath, and the problems that the conventional flame-retardant wire and cable material is not high-temperature resistant, has poor physical properties, has large smoke generation amount during combustion, and can generate a large amount of toxic and harmful gas during combustion are solved. And the emery is added in the preparation process, so that the wear resistance and the impact resistance of the surface of the cable are effectively enhanced, the density of the cable is greatly improved, the dust is reduced, and the oil resistance of the cable is increased.
(5) The modified argil is added in the preparation process of the low-smoke halogen-free flame-retardant irradiation crosslinking polyolefin sheath, so that the flame retardant property of the cable is further improved, and the anti-interference property of the cable can also be effectively improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
figure 2 is the utility model discloses the structural schematic of well cable core.
101 cable cores, 1 copper conductor, 2 first semi-conductive nylon belts, 3 crosslinked polyethylene insulating layers, 4 first polyester belts, 5 first tinned copper wire braided shielding layers, 6 second polyester belts, 7 third polyester belts, 8 triangular rubber frameworks, 9 fiber filling layers, 10 filling pipes, 11 rat repelling agents, 12 glass silk floss filling layers, 13 second semi-conductive nylon belts, 14 second tinned copper wire braided shielding layers, 15 armor protective layers and 16 low-smoke halogen-free flame-retardant irradiation crosslinked polyolefin sheaths.
Detailed Description
The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, the intrinsically safe cable for the novel environment-friendly explosion-proof site comprises three cable cores 101, wherein two groups of twisted cable cores are arranged inside each cable core 101, each group of cable cores comprises a copper conductor 1, a first semi-conductive nylon tape 2 wrapped outside the copper conductor 1, and a cross-linked polyethylene insulating layer 3 wrapped outside the first semi-conductive nylon tape 2, the cable cores 101 further comprise a first polyester tape 4, a first tinned copper wire braided shielding layer 5 and a second polyester tape 6 wrapping the two groups of cable cores from inside to outside, a triangular rubber framework 8 is attached between every two adjacent cable cores 101, a fiber filling layer 9 is filled inside each triangular rubber framework 8, a third polyester tape 7 is wrapped outside the three cable cores 101, and a second semi-conductive nylon tape 13, a second tinned copper wire braided shielding layer 14 and a third polyester tape 7 are sequentially wrapped outside the third polyester tape 7 from inside to outside, An armor protective layer 15 and a low-smoke halogen-free flame-retardant irradiation cross-linked polyolefin sheath 16.
Set up triangle-shaped rubber skeleton 8 between the cable core 101 in the cable, the effectual compressive capacity and the toughness that improve the cable, triangle-shaped rubber skeleton 8 can extrude the location to cable core 101 simultaneously, effectively avoids cable core 101 to take place the aversion phenomenon in the cable is inside.
A layer of semiconductive nylon belt is wrapped outside the conductor, so that the effects of homogenizing an electric field around the conductor and reducing capacitance and inductance are achieved; and a crosslinked polyethylene insulating layer is adopted for insulation, and the crosslinked polyethylene is a nonlinear material and has a better insulating effect.
The ultra-shielding combination of the semi-conductive nylon belt and the tinned copper wire shielding layer is adopted, the shielding effect between cable cores and the shielding effect on the outside of the cable are better, and the explosion-proof characteristic of the cable is better.
The three cable cores 101 are arranged in a triangular shape and are arranged in a contact manner.
The inner gaps of the first polyester belt 4 and the third polyester belt 7 are filled with glass silk floss filling layers 12, and the glass silk floss has good fireproof and fire-resistant capabilities, so that the fireproof performance of the cable is effectively improved.
The fiber filling layer 9 is formed by mixing glass fibers and polypropylene fibers in a mass ratio of 2:1, and the fiber filling layer 9 is filled in the triangular rubber framework 8, so that the compression buffering performance of the triangular rubber framework 8 can be effectively enhanced, and the strength of the cable is effectively improved.
The third polyester band 7 is internally provided with a filling pipe 10, the filling pipe 10 is internally filled with a rat repellent 11, the rat repellent 11 is a solid rat repellent which can be used for repelling rats, so that the rats do not want to approach the cable, and the cable is effectively protected from being bitten by the rats.
The armor protection layer 15 adopts the aluminum alloy, and the armor that the aluminum alloy was made can wholly form effective protection to the cable, improves the bulk strength of cable.
The preparation method of the low-smoke halogen-free flame-retardant irradiation cross-linked polyolefin sheath 16 comprises the following steps: according to the parts by weight, 120 parts of matrix resin, 50-60 parts of tributyl phosphate, 10-20 parts of graphite, 5-10 parts of dibutyl hydroxy toluene, 10-20 parts of modified argil, 4-8 parts of diamond and 2-4 parts of vinyl triethoxysilane coupling agent are banburied by a mixer at 180 ℃ in 150-materials, and then are extruded out by double screws, passed through thinly and vulcanized to obtain the low-smoke halogen-free flame-retardant irradiation crosslinking polyolefin sheath 16;
wherein the matrix resin is prepared by mixing 40-80 parts of ethylene-vinyl acetate copolymer, 20-35 parts of linear low-density polyethylene and 20-30 parts of epoxy type reaction compatilizer.
The whole cable is protected by adopting the low-smoke halogen-free flame-retardant irradiation crosslinking polyolefin sheath, and the problems that the conventional flame-retardant wire and cable material is not high-temperature resistant, has poor physical properties, has large smoke generation amount during combustion, and can generate a large amount of toxic and harmful gas during combustion are solved. Compared with the traditional rubber sheath, the rubber sheath has the advantages that all performances can reach or even exceed the national standard requirements, and the rubber sheath is superior to the traditional similar rubber sheath. And the emery is added in the preparation process, so that the wear resistance and the impact resistance of the surface of the cable are effectively enhanced, the density of the cable is greatly improved, the dust is reduced, and the oil resistance of the cable is increased.
The preparation method of the modified pottery clay comprises the following steps: adding 30-45 parts of argil, 5-10 parts of toluene, 10-15 parts of ethylene glycol monomethyl ether and 15-25 parts of vinyl triethoxysilane coupling agent into a supercritical reaction device according to parts by weight, sealing, introducing carbon dioxide to 25-45MPa, reacting for 1.5h at 65-75 ℃, removing the pressure of the carbon dioxide, filtering, and drying in vacuum to obtain silane coupling agent modified argil; according to parts by weight, 20-25 parts of silane coupling agent modified argil, 20-40 parts of glutaraldehyde solution with the mass fraction of 8% and 20-30 parts of xanthan gum are taken, stirred and reacted for 2-3.5 hours at the temperature of 55-70 ℃, then 10-20 parts of tannic acid and 5-10 parts of dicumyl peroxide are added, stirred for 2-4 hours, pressure relief is carried out, centrifugal separation is carried out, washing is carried out, and vacuum drying is carried out, so that the modified argil is obtained.
The modified argil is added in the preparation process of the low-smoke halogen-free flame-retardant irradiation cross-linked polyolefin sheath 16, so that the flame retardant property of the cable is further improved, and the anti-interference property of the cable can also be effectively improved.
To sum up, the utility model discloses compare in current cable, possess the insulation, the shielding property of preferred, can effectually prevent electromagnetic interference, receive external magnetic field interference power little, and fire prevention, explosion-proof performance are excellent, and the security performance is good, and intensity is high, and resistance to compression, pressure resistance are good, have solved current cable physical properties poor, when burning the problem that the smoke volume is big, the burning can produce a large amount of poisonous harmful gas. Compared with the traditional intrinsic safety cable, all the performances of the intrinsic safety cable can reach or even exceed the national standard requirements, and the intrinsic safety cable is superior to the existing similar cable.
The above; is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; according to the technical scheme of the utility model and the improvement conception, equivalent substitution or change is carried out; are all covered by the protection scope of the utility model.
Claims (6)
1. The utility model provides a novel explosion-proof place of environmental protection is with this ampere of cable, includes three cable core (101), its characterized in that: each cable core (101) is internally provided with two groups of twisted wire cores, each group of wire cores comprises a copper conductor (1), a first semi-conductive nylon tape (2) wrapped outside the copper conductor (1) and a cross-linked polyethylene insulating layer (3) extruded outside the first semi-conductive nylon tape (2), each cable core (101) further comprises a first polyester tape (4), a first tinned copper wire braided shielding layer (5) and a second polyester tape (6) wrapped outside the two groups of wire cores from inside to outside, every two adjacent cable cores (101) are respectively provided with a triangular rubber framework (8) in a laminating manner, a fiber filling layer (9) is filled inside each triangular rubber framework (8), a third polyester tape (7) is wrapped outside the three cable cores (101), and the outside of each third polyester tape (7) is sequentially wrapped with a second semi-conductive nylon tape (13) and a second semi-conductive nylon tape (13) from inside to outside, A second tinned copper wire braided shielding layer (14), an armor protective layer (15) and a low-smoke halogen-free flame-retardant irradiation cross-linked polyolefin sheath (16).
2. The novel intrinsic safety cable for the environment-friendly explosion-proof site as claimed in claim 1, is characterized in that: the three cable cores (101) are arranged in a triangular shape and are arranged in a contact mode.
3. The novel intrinsic safety cable for the environment-friendly explosion-proof site as claimed in claim 1, is characterized in that: the copper conductor (1) is made of No. 1 red impure copper into a solid copper conductor.
4. The novel intrinsic safety cable for the environment-friendly explosion-proof site as claimed in claim 1, is characterized in that: the inner gaps of the first polyester belt (4) and the third polyester belt (7) are filled with glass silk floss filling layers (12).
5. The novel intrinsic safety cable for the environment-friendly explosion-proof site as claimed in claim 1, is characterized in that: a filling pipe (10) is arranged inside the third polyester belt (7), a rat repelling agent (11) is filled inside the filling pipe (10), and the rat repelling agent (11) is a solid rat repelling agent.
6. The novel intrinsic safety cable for the environment-friendly explosion-proof site as claimed in claim 1, is characterized in that: the armor protective layer (15) is made of aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542293.0U CN210271864U (en) | 2019-09-17 | 2019-09-17 | Novel this ampere of cable is used in explosion-proof place of environmental protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921542293.0U CN210271864U (en) | 2019-09-17 | 2019-09-17 | Novel this ampere of cable is used in explosion-proof place of environmental protection |
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| Publication Number | Publication Date |
|---|---|
| CN210271864U true CN210271864U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921542293.0U Active CN210271864U (en) | 2019-09-17 | 2019-09-17 | Novel this ampere of cable is used in explosion-proof place of environmental protection |
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| Country | Link |
|---|---|
| CN (1) | CN210271864U (en) |
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- 2019-09-17 CN CN201921542293.0U patent/CN210271864U/en active Active
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