CN217214258U

CN217214258U - High temperature resistant fire prevention control instrument cable

Info

Publication number: CN217214258U
Application number: CN202221056724.4U
Authority: CN
Inventors: 甘叶凡; 沈志海; 沈志荣
Original assignee: Anhui Huahai Special Cable Group Co Ltd
Current assignee: Anhui Huahai Special Cable Group Co Ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-16
Anticipated expiration: 2032-05-05

Abstract

The utility model relates to the technical field of cables, in particular to a high-temperature-resistant fireproof control instrument cable, which comprises an inner core and an outer sleeve, wherein the number of the inner core is three groups and is arranged in an annular array, the center of the three groups of inner cores is provided with a support column which is a solid rubber rod, the outer sleeve is arranged outside the inner core, the outer sleeve comprises an outer protective sleeve, a first flame-retardant layer, a first high-temperature-resistant layer, a second high-temperature-resistant layer, a puncture-proof layer, a first waterproof layer and a filling layer, the inner side of the outer protective sleeve is provided with the first flame-retardant layer, the first flame-retardant layer is made of glass fiber, the inner side wall of the first flame-retardant layer is provided with the first high-temperature-resistant layer, the utility model discloses a silica gel insulating sleeve is arranged to be the outermost layer, the glass fiber layer and the fluoroplastic sheath layer are matched in sequence, so that the outer sleeve part of the cable has excellent high-temperature resistance and flame-retardant effect, thereby ensuring that the cable is in case of fire, the cable can be effectively prevented from being damaged in a high-temperature environment, and danger is caused to the environment near the cable.

Description

High temperature resistant fire prevention control instrument cable

Technical Field

The utility model relates to the technical field of cables, specifically a high temperature resistant fire prevention control instrument cable.

Background

The wire and cable industry is the second industry in China next to the automobile industry, and both the product variety satisfaction rate and the domestic market share rate exceed 90%. With the continuous enlargement of the scale of the industries such as the power industry, the data communication industry, the urban rail transit industry, the automobile industry, the shipbuilding industry and the like, the demand on the electric wire and the electric cable is rapidly increased, and the electric wire and the electric cable have huge development potential in the future.

Nowadays, people's security consciousness is continuously strengthened, and the performance and environmental protection requirements of cables matched with used equipment are continuously improved. The existing cable for the control instrument has low high temperature resistance and flame retardant property, and the safety and reliability of the cable are low under the condition of fire.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant fire prevention control instrument cable to solve the problem that proposes in the above-mentioned background art.

The technical scheme of the utility model is that: a high-temperature-resistant fireproof control instrument cable comprises inner cores and an outer sleeve, wherein the number of the inner cores is three groups, the inner cores are arranged in an annular array, a support column is arranged in the center of the three groups of the inner cores, the support column is a solid rubber rod, the outer sleeve is sleeved outside the inner cores,

the overcoat includes outer lag, first fire-retardant layer, first high temperature resistant layer, the second high temperature resistant layer, the puncture-proof layer, first waterproof layer and filling layer, the inboard of outer lag is provided with first fire-retardant layer, the material on first fire-retardant layer is glass fiber, the inside wall on first fire-retardant layer is provided with first high temperature resistant layer, the inboard on first high temperature resistant layer is provided with the second high temperature resistant layer, the inboard on second high temperature resistant layer is provided with the puncture-proof layer, the puncture-proof layer is the armor weaving layer, the inboard on puncture-proof layer is provided with first waterproof layer, first waterproof layer is the individual layer PVC hose.

Preferably, the inner core includes cable core, insulating cover, metal shielding layer, second waterproof layer, the fire-retardant layer of second and interior lag, the lateral wall cladding of cable core is provided with the insulating cover, the insulating cover is PE-RT polyethylene pipe, the outside cladding of insulating cover is provided with the metal shielding layer, the outside cladding of metal shielding layer is provided with the second waterproof layer, the second waterproof layer is individual layer PVC material, the outside cladding of second waterproof layer is provided with the fire-retardant layer of second, the outside cladding on the fire-retardant layer of second is provided with interior lag, interior lag is silica gel insulation support pipe.

Preferably, the outer protective sleeve is the outermost layer and is made of a silica gel insulating sleeve

Preferably, the first high temperature resistant layer is a fluoroplastic sheath.

Preferably, the second high temperature resistant layer is a mica wrapping layer.

Preferably, a filling layer is arranged on the inner side of the first waterproof layer, and the filling material in the filling layer is sponge.

Preferably, the metal shielding layer is made of copper.

Preferably, the second flame-retardant layer is made of ceramic silicon rubber.

The utility model discloses an improve and provide a high temperature resistant fire prevention control instrument cable here, compare with prior art, have following improvement and advantage:

one is as follows: the utility model discloses a set up silica gel insulation support and be outmost, cooperate the use of glass fiber layer and fluoroplastics restrictive coating in proper order, cause the overcoat position of cable to have good high temperature resistance and flame retardant efficiency to guaranteed that the cable can effectually avoid the cable to damage in high temperature environment when the condition of taking place the conflagration, caused danger to cable near environment.

The second step is as follows: the utility model discloses a be provided with the same silica gel insulation support on the inner core, the sponge is filled in the cooperation simultaneously the use, can effectually avoid outside high temperature direct conduction to cable core department, has guaranteed the holistic safety in utilization of cable, and the use of sponge can effectively cushion outside conduction and advance inside vibrations power, can effectually protect the cable.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the outer cover of the present invention;

fig. 3 is a schematic view of the three-dimensional structure of the inner core of the present invention.

Description of reference numerals:

1. an inner core; 2. a jacket; 3. a support pillar; 4. an outer protective sleeve; 5. a first flame retardant layer; 6. a first high temperature resistant layer; 7. a second high temperature resistant layer; 8. a puncture-proof layer; 9. a first waterproof layer; 10. a filling layer; 11. a cable core; 12. an insulating sleeve; 13. a metal shielding layer; 14. a second waterproof layer; 15. a second flame retardant layer; 16. an inner protective sleeve.

Detailed Description

The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses an improve and provide a high temperature resistant fire prevention control instrument cable here, the technical scheme of the utility model is:

as shown in fig. 1-3, a high temperature resistant fireproof control instrument cable comprises inner cores 1 and outer sleeves 2, wherein the inner cores 1 are arranged in three groups and are arranged in an annular array, support columns 3 are arranged at the centers of the three groups of inner cores 1, the support columns 3 are solid rubber bars, the outer sleeves 2 are sleeved outside the inner cores 1,

the overcoat 2 includes outer lag 4, first fire-retardant layer 5, first high temperature resistant layer 6, second high temperature resistant layer 7, puncture-proof layer 8, first waterproof layer 9 and filling layer 10, the inboard of outer lag 4 is provided with first fire-retardant layer 5, the material of first fire-retardant layer 5 is glass fiber, the inside wall of first fire-retardant layer 5 is provided with first high temperature resistant layer 6, the inboard of first high temperature resistant layer 6 is provided with second high temperature resistant layer 7, the inboard of second high temperature resistant layer 7 is provided with puncture-proof layer 8, puncture-proof layer 8 is the armor weaving layer, puncture-proof layer 8's inboard is provided with first waterproof layer 9, first waterproof layer 9 is the individual layer PVC hose.

Further, the inner core 1 comprises a cable core 11, an insulating sleeve 12, a metal shielding layer 13, a second waterproof layer 14, a second flame-retardant layer 15 and an inner protective sleeve 16, the insulating sleeve 12 is coated on the outer side wall of the cable core 11, the insulating sleeve 12 is a PE-RT polyethylene pipe, the metal shielding layer 13 is coated on the outer side of the insulating sleeve 12, the second waterproof layer 14 is coated on the outer side of the metal shielding layer 13, the second waterproof layer 14 is made of single-layer PVC (polyvinyl chloride), the second flame-retardant layer 15 is coated on the outer side of the second waterproof layer 14, the inner protective sleeve 16 is coated on the outer side of the second flame-retardant layer 15, and the inner protective sleeve 16 is a silica gel insulating sleeve.

By above-mentioned structure, when using, because inner core 1 all adopts silica gel insulation support to be outmost with overcoat 2, cause the whole high temperature resistance of cable to promote, all set gradually fire-retardant, waterproof construction in inner core 1 and the overcoat 2 simultaneously to the effectual life who guarantees the cable.

Further, outer lag 4 is outmost, and outer lag 4's material is silica gel insulation support.

Due to the characteristics of the high-temperature-resistant silicon rubber, the high-temperature-resistant silicon rubber can be permanently used for a long time in an environment below 150 ℃ when in use; can be continuously used in the environment of 200-300 ℃; the cable can be continuously used in the environment with the temperature of 300-350 ℃, has excellent heat-conducting property, aging resistance, electric insulating property, water resistance, ozone resistance and ultraviolet radiation resistance, can adapt to the severe environment of ozone, water, gas, oil, high pressure, strong magnetism and sun and rain for a long time, and can effectively protect the cable as the outer protective sleeve 4.

Further, the first high temperature resistant layer 6 is a fluoroplastic sheath.

By above-mentioned structure, when using, because fluoroplastics possess high chemical stability and chemical resistance, characteristics such as fire-resistant, high temperature resistant, fire-retardant cooperate outer lag 4, can promote the high temperature resistant and fire-retardant effect of cable greatly.

Further, the second high temperature resistant layer 7 is a mica wrapping layer.

By the structure, when the mica tape for the cable is used, the mica tape is a high-performance mica insulating product, has excellent high-temperature resistance and combustion resistance, has good flexibility in a normal state, and further enhances the flame retardance of the cable while ensuring the overall toughness of the cable.

Further, a filling layer 10 is arranged on the inner side of the first waterproof layer 9, and the filling material in the filling layer 10 is sponge.

By above-mentioned structure, when using, the use of sponge can effectively cushion the outside vibration power of conducting into inside, can effectually protect the cable.

Further, the material of the metal shielding layer 13 is copper.

Further, the second flame retardant layer 15 is made of ceramic silicone rubber.

By the structure, when the cable is used, because the ceramic silicon rubber has the characteristics of excellent fire resistance, flame retardance, low smoke, no toxicity and the like, and is matched with the inner protective sleeve 16, the protection performance of the cable core 11 can be greatly improved.

Claims

1. A high-temperature-resistant fireproof control instrument cable comprises inner cores (1) and an outer sleeve (2), and is characterized in that the number of the inner cores (1) is three groups and is arranged in an annular array, a support column (3) is arranged in the center of the three groups of the inner cores (1), the support column (3) is a solid rubber rod, the outer sleeve (2) is sleeved outside the inner cores (1),

the outer sleeve (2) comprises an outer protective sleeve (4), a first flame-retardant layer (5), a first high-temperature-resistant layer (6), a second high-temperature-resistant layer (7), a puncture-proof layer (8), a first waterproof layer (9) and a filling layer (10), wherein the inner side of the outer protective sleeve (4) is provided with the first flame-retardant layer (5), the first flame-retardant layer (5) is made of glass fibers, the inner side wall of the first flame-retardant layer (5) is provided with the first high-temperature-resistant layer (6), the inner side of the first high-temperature-resistant layer (6) is provided with the second high-temperature-resistant layer (7), the inner side of the second high-temperature-resistant layer (7) is provided with the puncture-proof layer (8), the puncture-proof layer (8) is an armor braid layer, the inner side of the puncture-proof layer (8) is provided with the first waterproof layer (9), and the first waterproof layer (9) is a single-layer PVC hose.

2. The high temperature resistant fire control instrument cable of claim 1, wherein: the cable comprises an inner core (1) and is characterized in that the inner core comprises a cable core (11), an insulating sleeve (12), a metal shielding layer (13), a second waterproof layer (14), a second flame-retardant layer (15) and an inner protective sleeve (16), the insulating sleeve (12) is coated on the outer side wall of the cable core (11), the insulating sleeve (12) is a PE-RT polyethylene pipe, the metal shielding layer (13) is coated on the outer side of the insulating sleeve (12), the second waterproof layer (14) is coated on the outer side of the metal shielding layer (13), the second waterproof layer (14) is made of single-layer PVC (polyvinyl chloride), the second flame-retardant layer (15) is coated on the outer side of the second waterproof layer (14), the inner protective sleeve (16) is coated on the outer side of the second flame-retardant layer (15), and the inner protective sleeve (16) is a silica gel insulating sleeve.

3. The high temperature resistant fire control instrument cable of claim 1, wherein: the outer protective sleeve (4) is the outermost layer, and the outer protective sleeve (4) is made of a silica gel insulating sleeve.

4. The high temperature resistant fire control instrument cable of claim 1, wherein: the first high-temperature resistant layer (6) is a fluoroplastic sheath.

5. The high temperature resistant fire control instrument cable of claim 1, wherein: the second high temperature resistant layer (7) is a mica lapping layer.

6. The high temperature resistant fire control instrument cable of claim 1, wherein: the inner side of the first waterproof layer (9) is provided with a filling layer (10), and the filling material in the filling layer (10) is sponge.

7. The high temperature resistant fire control instrument cable of claim 2, wherein: the metal shielding layer (13) is made of copper.

8. The high temperature resistant fire control instrument cable of claim 2, wherein: the second flame-retardant layer (15) is made of ceramic silicon rubber.