阅读说明：本技术 一种高性能阻燃限温电伴热带 (High-performance flame-retardant temperature-limiting electric tracing band ) 是由 计成志 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种高性能阻燃限温电伴热带,所述导线设置为两组,两组所述导线的外表面设置有用于控制温度范围的导电塑料层,所述导电塑料层远离导线外表面的一侧设置有用于电流绝缘的绝缘层,所述绝缘层远离导电塑料层外表面的一侧设置有具有初步阻燃效果的第一阻燃层,所述第一阻燃层远离绝缘层外表面的一侧设置有具有阻燃效果的第二阻燃层,所述第二阻燃层远离第一阻燃层外表面的一侧设置有屏蔽层,所述屏蔽层远离第二阻燃层外表面的一侧设置有保护套。本发明保护套的制造材料为无卤阻燃材料,具有一定的阻燃效果,并且和具有阻燃性能的第一阻燃层和第二阻燃层相互配合,一定程度上避免了温度过高出现电伴热带燃烧情况的出现。(The invention discloses a high-performance flame-retardant temperature-limiting electric tracing band, wherein two groups of wires are arranged, the outer surfaces of the two groups of wires are provided with conductive plastic layers for controlling the temperature range, one side of each conductive plastic layer, which is far away from the outer surface of each wire, is provided with an insulating layer for current insulation, one side of each insulating layer, which is far away from the outer surface of each conductive plastic layer, is provided with a first flame-retardant layer with a primary flame-retardant effect, one side of each first flame-retardant layer, which is far away from the outer surface of each insulating layer, is provided with a second flame-retardant layer with a flame-retardant effect, one side of each second flame-retardant layer, which is far away from the outer surface of each first flame-retardant layer, is provided with a shielding layer, and one side of each shielding layer, which is far away from the outer surface of each second flame-retardant layer, is provided with a protective sleeve. The protective sleeve is made of a halogen-free flame-retardant material, has a certain flame-retardant effect, is matched with the first flame-retardant layer and the second flame-retardant layer with the flame-retardant performance, and avoids the phenomenon that the electric tracing band burns due to overhigh temperature to a certain extent.)

1. A high-performance flame-retardant temperature-limiting electric tracing band comprises a lead (1), and is characterized in that: wire (1) sets up to the symmetric distribution two sets ofly, two sets of the surface of wire (1) is provided with conductive plastic layer (2) that are used for the controlled temperature scope, one side that conductive plastic layer (2) kept away from wire (1) surface is provided with insulating layer (3) that are used for the current insulation, one side that conductive plastic layer (2) surface was kept away from in insulating layer (3) is provided with first flame retardant coating (4) that have preliminary flame retardant efficiency, one side that insulating layer (3) surface was kept away from in first flame retardant coating (4) is provided with second flame retardant coating (5) that have flame retardant efficiency, one side that first flame retardant coating (4) surface was kept away from in second flame retardant coating (5) is provided with shielding layer (6), one side that second flame retardant coating (5) surface was kept away from in shielding layer (6) is provided with protection wire (1), conductive plastic layer (2), Insulating layer (3), first fire-retardant layer (4), second fire-retardant layer (5) and shielding layer (6) do not receive protective sheath (7) of damage, the manufacturing material of protective sheath (7) is halogen-free flame retardant material.

2. The high-performance flame-retardant temperature-limiting electric tracing band according to claim 1, wherein: the manufacturing material of wire (1) is the copper core, the manufacturing material of conducting plastic layer (2) is carbon granule conducting plastic, the manufacturing material of insulating layer (3) is the polyolefin material, shielding layer (6) set up to be one of tinned copper wire shielding layer and almag shielding layer, the tensile strength of whole electric tracing area can be strengthened to shielding layer (6) to can prevent the production of static, the manufacturing material of protective sheath (7) is the polyolefin material.

3. The high-performance flame-retardant temperature-limiting electric tracing band according to claim 2, wherein: the manufacturing material of the first flame-retardant layer (4) is flame-retardant rubber, the manufacturing material of the second flame-retardant layer (5) is asbestos fiber, the second flame-retardant layer (5) is bonded on the outer surface of the first flame-retardant layer (4) through bonding glue, and the outer surface of the second flame-retardant layer is fixed through a second fixing piece (10) at intervals of 3-5 cm.

4. The high-performance flame-retardant temperature-limiting electric tracing band according to claim 3, wherein: the outer surface of wire (1) every 5-8cm all is provided with first stationary blade (8), wire (1) is extruded through double-deck coextrusion technique with conductive plastic layer (2), the surface of conductive plastic layer (2) is run through and is seted up rhombus support ring (9), the inside of support ring (9) is provided with the rhombus backing sheet that the PVC material was made, the surface of backing sheet is laminated with the inner wall of support ring (9) mutually.

5. The high-performance flame-retardant temperature-limiting electric tracing band according to claim 4, wherein: the first fixing piece (8) and the second fixing piece (10) are made of aluminum foil.

6. The high-performance flame-retardant temperature-limiting electric tracing band according to claim 5, wherein: the working voltage of the halogen-free flame-retardant temperature-limiting electric tracing band comprises various voltages of 12V, 24V, 36V, 110V, 220V and 380V.

Technical Field

The invention relates to the technical field of electric tracing bands, in particular to a high-performance flame-retardant temperature-limiting electric tracing band.

Background

The electric tracing band is widely applied in the field of steel making and is often used as a heat insulation material of equipment to prevent water in a pipeline from being cooled and frozen. After the electric tracing band is wound on the pipeline, the electric tracing band is wrapped by using heat insulation cotton and then is protected and fixed by an iron sheet.

The existing electric tracing band is easy to damage due to temperature rise in the using process because of temperature rise of the electric tracing band, the traditional electric tracing band cannot effectively control the temperature, high-temperature hot spots cannot be caused due to repeated crossing and overlapping of the electric tracing band, the electric tracing band is easy to burn and damage due to overhigh temperature, and therefore a high-performance flame-retardant temperature-limiting electric tracing band is provided.

Disclosure of Invention

The invention aims to provide a high-performance flame-retardant temperature-limiting electric tracing band to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a high-performance flame-retardant temperature-limiting electric tracing band comprises two groups of leads which are symmetrically distributed, wherein the outer surfaces of the two groups of leads are provided with conductive plastic layers for controlling the temperature range, one side of the conductive plastic layer, which is far away from the outer surface of the lead, is provided with an insulating layer for current insulation, a first flame-retardant layer with primary flame-retardant effect is arranged on one side of the insulating layer away from the outer surface of the conductive plastic layer, a second flame-retardant layer with a flame-retardant effect is arranged on one side of the first flame-retardant layer away from the outer surface of the insulating layer, one side that first fire-retardant layer surface was kept away from on the fire-retardant layer of second is provided with the shielding layer, one side that second fire-retardant layer surface was kept away from on the shielding layer is provided with protective sheath that protection wire, conductive plastic layer, insulating layer, first fire-retardant layer, the fire-retardant layer of second and shielding layer do not receive the damage, the manufacturing material of protective sheath is halogen-free flame retardant material.

Preferably, the manufacturing material of the lead is a copper core, the manufacturing material of the conductive plastic layer is carbon particle conductive plastic, the manufacturing material of the insulating layer is polyolefin material, the shielding layer is one of a tinned copper wire shielding layer and an aluminum magnesium alloy shielding layer, the shielding layer can enhance the tensile property of the whole electric tracing band and can prevent the generation of static electricity, and the manufacturing material of the protective sleeve is polyolefin material.

Preferably, the first flame-retardant layer is made of flame-retardant rubber, the second flame-retardant layer is made of asbestos fibers, the second flame-retardant layer is adhered to the outer surface of the first flame-retardant layer through adhesive glue, and the outer surface of the second flame-retardant layer is fixed through a second fixing sheet at intervals of 3-5 cm.

Preferably, the outer surface of the lead is provided with first fixing pieces every 5-8cm, the lead and the conductive plastic layer are extruded by a double-layer co-extrusion technology, the surface of the conductive plastic layer penetrates through a diamond-shaped support ring, a diamond-shaped support sheet made of a PVC material is arranged inside the support ring, and the outer surface of the support sheet is attached to the inner wall of the support ring.

Preferably, the first fixing sheet and the second fixing sheet are made of aluminum foil.

Preferably, the working voltage of the halogen-free flame-retardant temperature-limiting electric tracing band comprises more than 12V, 24V, 36V, 110V, 220V and 380V.

Compared with the prior art, the invention has the following beneficial effects:

1. the protective sleeve is made of a halogen-free flame-retardant material, has a certain flame-retardant effect, is matched with the first flame-retardant layer and the second flame-retardant layer with the flame-retardant property, and avoids the combustion condition of the electric tracing band caused by overhigh temperature to a certain extent;

2. the circuit number of each copper core wire in the electric tracing band can change along with the influence of temperature, when the temperature around the electric tracing band is cooled, the electric plastic layer shrinks to enable the carbon particle conductive plastics to be mutually connected to form circuits, current flows through the circuits to enable the electric tracing band to heat, when the temperature is raised, the electric plastic layer expands, the carbon particles are gradually disconnected, the circuits are interrupted, the resistance is increased, the electric tracing band can automatically reduce power output, when the ambient temperature is cooled, the electric plastic layer returns to a shrinking state, the carbon particles can be correspondingly connected to form circuits, the heating power of the electric tracing band can automatically rise, and therefore the function of automatic temperature limitation can be achieved;

3. the diamond-shaped supporting sheet can save certain manufacturing raw materials and also can play a certain supporting role, the electric tracing band is not damaged due to extrusion, and the arranged aluminum foil is used for manufacturing the first fixing sheet and the second fixing sheet, so that the first fixing sheet and the second fixing sheet can be fixed to a certain extent and have better heat conduction performance.

Drawings

FIG. 1 is a schematic structural front view of the present invention;

FIG. 2 is a side cross-sectional structural view of the present invention.

In the figure: the cable comprises a lead 1, a conductive plastic layer 2, an insulating layer 3, a first flame-retardant layer 4, a second flame-retardant layer 5, a shielding layer 6, a protective sleeve 7, a first fixing sheet 8, a support ring 9 and a second fixing sheet 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a fire-retardant temperature limit electric tracing area of high performance, includes wire 1, wire 1 sets up to two sets of symmetric distribution, and is two sets of the surface of wire 1 is provided with the conductive plastic layer 2 that is used for the controlled temperature scope, one side that conductive plastic layer 2 kept away from the surface of wire 1 is provided with the insulating layer 3 that is used for the current insulation, one side that conductive plastic layer 2 surface was kept away from to insulating layer 3 is provided with the first flame retardant coating 4 that has preliminary flame retardant efficiency, one side that insulating layer 3 surface was kept away from to first flame retardant coating 4 is provided with the second flame retardant coating 5 that has flame retardant efficiency, one side that first flame retardant coating 4 surface was kept away from to second flame retardant coating 5 is provided with shielding layer 6, one side that shielding layer 6 kept away from second flame retardant coating 5 surface is provided with protection wire 1, conductive plastic layer 2, insulating layer 3, first flame retardant coating 4, second flame retardant coating 5 and shielding layer 6 do not receive the protective sheath 7 of damage, the manufacturing material of the protective sleeve 7 is halogen-free flame retardant material, the circuit number of each copper core wire 1 in the electric tracing band can change along with the influence of temperature, when the temperature around the electric tracing band is cooled, the electric plastic layer 2 contracts to enable the carbon particle conductive plastics to be mutually connected to form circuits, current flows through the circuits to enable the electric tracing band to generate heat, when the temperature is increased, the carbon particles are gradually disconnected and cause the circuit to be interrupted, the resistance is increased, the power output of the electric tracing band can be automatically reduced, when the ambient temperature is cooled, the electric plastic layer 2 returns to a contracted state, the carbon particles are correspondingly connected to form circuits, the heating power of the electric tracing band can be automatically increased, and therefore the function of automatic temperature limitation can be formed.

Preferably, the manufacturing material of wire 1 is the copper core, the copper core sets up to the multiunit, and intertwine forms a set of wire 1, the manufacturing material of conductive plastic layer 2 is carbon granule conductive plastic, the manufacturing material of insulating layer 3 is the polyolefin material, shielding layer 6 sets up to one of tinned copper wire shielding layer and almag shielding layer, shielding layer 6 can strengthen the tensile property in whole electric tracing area to can prevent the production of static, the manufacturing material of protective sheath 7 is the polyolefin material.

Preferably, the manufacturing material of the first flame-retardant layer 4 is flame-retardant rubber, the manufacturing material of the second flame-retardant layer 5 is asbestos fiber, the second flame-retardant layer 5 is bonded on the outer surface of the first flame-retardant layer 4 through adhesive glue, and the outer surface of the second flame-retardant layer is fixed through a second fixing piece 10 at intervals of 3-5cm, the manufacturing material of the flame-retardant rubber comprises natural rubber, an accelerant, a resin flame retardant, organic clay, carbon black, sulfide and an anti-aging agent, the manufacturing material of the flame-retardant rubber comprises, by mass, 120 parts of the natural rubber, 6-8 parts of the accelerant, 10-16 parts of the resin flame retardant, 2-4 parts of the organic clay, 8-12 parts of the carbon black, 3-5 parts of the sulfide and 3-3.5 parts of the anti-aging agent, when the flame-retardant rubber is manufactured by a rubber mixing mill, the asbestos fiber after the treatment is not cured is attached on the outer surface of the flame-retardant rubber, and after the asbestos fiber is added, drying and curing the asbestos fiber in a heating and drying manner.

Preferably, the outer surface of the lead 1 is provided with a first fixing sheet 8 every 5-8cm, the lead 1 and the conductive plastic layer 2 are extruded by a double-layer co-extrusion technology, the surface of the conductive plastic layer 2 is penetrated through a rhombic supporting ring 9, a rhombic supporting sheet made of a PVC material is arranged inside the supporting ring 9, the outer surface of the supporting sheet is attached to the inner wall of the supporting ring 9, the rhombic supporting sheet is arranged to save certain manufacturing raw materials and play a certain supporting role, and the electric tracing band is not damaged due to extrusion.

Preferably, the first fixing plate 8 and the second fixing plate 10 are made of aluminum foil, and the aluminum foil is used as the material for making the first fixing plate 8 and the second fixing plate 10, so that the first fixing plate 8 and the second fixing plate 10 can play a certain fixing role and have good heat-conducting property.

Preferably, the operating voltages of the halogen-free flame-retardant temperature-limiting electric tracing band comprise 12V, 24V, 36V, 110V, 220V and 380V, and the setting of the operating voltages of the electric tracing band can enable the electric tracing band to be suitable for different working scenes.

When in use, firstly, the lead 1 and the conductive plastic layer 2 are extruded by a double-layer co-extrusion technology, the arrangement can ensure that the lead 1 and the electro-plastic layer 2 are tightly connected, the surface of the conductive plastic layer 2 is penetrated and provided with a diamond-shaped supporting ring 9 and a supporting sheet, the diamond-shaped supporting sheet not only can save certain manufacturing raw materials, but also can play a certain supporting role, the electric tracing band is not damaged and damaged due to extrusion, the manufacturing material of the protective sleeve is a halogen-free flame-retardant material and has a certain flame-retardant effect, and the protective sleeve is matched with the first flame-retardant layer and the second flame-retardant layer with the flame-retardant property, the burning condition of the electric tracing band caused by overhigh temperature is avoided to a certain extent, and the manufacturing materials of the first fixing sheet 8 and the second fixing sheet 10 which act as aluminum foils not only can play a certain fixing role on the lead 1 and the second flame-retardant layer 5, the electric tracing band has good heat conduction performance, generated heat can be transmitted, the circuit number of each copper core wire 1 in the electric tracing band can be changed along with the influence of temperature, when the temperature around the electric tracing band is cooled, the electric plastic layer 2 contracts to enable the carbon particle conductive plastics to be mutually connected to form a circuit, current flows through the circuits to enable the electric tracing band to generate heat, when the temperature is increased, the electric plastic layer 2 expands, the carbon particles are gradually disconnected to cause the circuit to be interrupted, the resistance is increased, the electric tracing band can automatically reduce power output, when the surrounding temperature is cooled, the electric plastic layer 2 returns to a contracted state, the carbon particles are correspondingly connected to form a circuit, the heating power of the electric tracing band automatically rises, and therefore the function of automatic temperature limiting can be achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.