阅读说明：本技术 一种防爆型高分子自控温伴热带 (Explosion-proof type polymer automatic temperature control heat tracing band ) 是由 李贻连 于 2021-08-03 设计创作，主要内容包括：本发明公开了一种防爆型高分子自控温伴热带,包括两根平行设置的发热导线,两根发热导线外侧均挤包有聚乙烯橡胶,聚乙烯橡胶外侧包裹有弹性层,弹性层内设有异常警报组件,弹性层外侧设有PVC聚氯乙烯树脂层,PVC聚氯乙烯树脂层外侧设有屏蔽层,屏蔽层外侧设有阻燃层,阻燃层外侧设有铠装层,铠装层外侧设有防护层,防护层为耐腐蚀材料制成；通过聚乙烯橡胶和弹性层对发热导线进行防护,能够避免发热导线受到损伤,通过交联型半导体屏蔽材料挤包成屏蔽层,屏蔽效果好,通过阻燃层能够起到阻燃的效果,安全姓高,通过防护层对整体进行防护,增加伴热带的耐腐蚀性,伴热带整体防爆性能高,通过异常警报组件能够在伴热带温度异常时进行报警。(The invention discloses an explosion-proof high-molecular automatic temperature control heat tracing band, which comprises two parallel heating wires, wherein polyethylene rubber is extruded and wrapped outside the two heating wires, an elastic layer is wrapped outside the polyethylene rubber, an abnormal alarm component is arranged in the elastic layer, a PVC (polyvinyl chloride) resin layer is arranged outside the elastic layer, a shielding layer is arranged outside the PVC resin layer, a flame-retardant layer is arranged outside the shielding layer, an armor layer is arranged outside the flame-retardant layer, a protective layer is arranged outside the armor layer, and the protective layer is made of corrosion-resistant materials; protect heating wire through polyethylene rubber and elastic layer, can avoid heating wire to receive the damage, through the crowded shielding layer that wraps into of cross-linking type semiconductor shielding material, shielding effect is good, can play fire-retardant effect through fire-retardant layer, the safe surname is high, protect whole through the inoxidizing coating, increase the corrosion resistance in companion's tropical, the whole explosion-proof ability in companion's tropical is high, can report to the police when companion's tropical temperature is unusual through unusual alarm assembly.)

1. The utility model provides an explosion-proof type polymer automatic control temperature companion tropical, includes two parallel arrangement's heating wire (1), its characterized in that: two heating wire (1) outside is all crowded package and is had polyethylene rubber (8), polyethylene rubber (8) outside parcel elastic layer (2), be equipped with unusual alarm subassembly (9) in elastic layer (2), elastic layer (2) outside is equipped with PVC polyvinyl chloride resin layer (3), PVC polyvinyl chloride resin layer (3) outside is equipped with shielding layer (4), shielding layer (4) outside is equipped with fire-retardant layer (5), fire-retardant layer (5) outside is equipped with armor (6), armor (6) outside is equipped with inoxidizing coating (7).

2. The explosion-proof type macromolecule self-temperature-control heat tracing band according to claim 1, characterized in that: the two heating wires (1) are cylindrical metal wires.

3. The explosion-proof type macromolecule self-temperature-control heat tracing band according to claim 1, characterized in that: the elastic layer (2) is made of low-density polyethylene material.

4. The explosion-proof type macromolecule self-temperature-control heat tracing band according to claim 1, characterized in that: the shielding layer (4) is formed by extruding and wrapping a cross-linking type semiconductor shielding material.

5. The explosion-proof type macromolecule self-temperature-control heat tracing band according to claim 1, characterized in that: the flame-retardant layer (5) is made of one or a mixture of two of magnesium hydroxide and aluminum hydroxide.

6. The explosion-proof type macromolecule self-temperature-control heat tracing band according to claim 1, characterized in that: the armor layer (6) is formed by weaving tinned aluminum alloy wires, and the weaving density of the armor layer (6) is not less than 86%.

7. The explosion-proof type macromolecule self-temperature-control heat tracing band according to claim 1, characterized in that: the abnormity warning assembly (9) comprises a heat insulation shell (91), the heat insulation shell (91) is connected with the elastic layer (2), a heat conduction cylinder (92) penetrates through the bottom of the heat insulation shell (91), thermal expansion liquid (93) is filled in the heat conduction cylinder (92), a piston (94) is arranged in the heat conduction cylinder (92), the top of the piston (94) is fixedly connected with a connecting rod (95), the top of the connecting rod (95) is fixedly connected with an insulation plate (96), the top of the insulation plate (96) is provided with a first electric contact block (97), the insulation plate (96) is connected with the inner top wall of the heat insulation shell (91) through a spring (910), the inner top wall of the heat insulation shell (91) is fixedly connected with an insulation seat (98), a second electric contact block (99) corresponding to the first electric contact block (97) is arranged on the insulation seat (98), and a third electric contact block (913) is arranged on the right side of the bottom of the insulation plate (96), and a fourth electric contact block (914) corresponding to the third electric contact block (913) is arranged on the right side in the heat insulation shell (91).

8. The explosion-proof type high molecular self-temperature-control heat tracing band according to claims 1-7, characterized in that: a storage battery (911) and an alarm signal transmitter (912) are arranged in the heat insulation shell (91), the positive electrode of the storage battery (911) is electrically connected with the alarm signal transmitter (912) and the first electric contact block (97), the negative electrode of the storage battery (911) is electrically connected with the second electric contact block (99), the positive electrode of the storage battery (911) is electrically connected with the alarm signal transmitter (912) and the third electric contact block (913), and the negative electrode of the storage battery (911) is electrically connected with the fourth electric contact block (914).

Technical Field

The invention relates to the technical field of heat tracing bands, in particular to an explosion-proof type high-molecular temperature self-control heat tracing band.

Background

The electric tracing means that electric energy is converted into heat energy by using electric tracing equipment, the heat lost by the heat tracing equipment through a heat insulation material is supplemented through direct or indirect heat exchange, and the temperature control is adopted to achieve the purpose of tracking and controlling the temperature of a medium in the heat tracing equipment so as to keep the medium at a reasonable and economic level. In the past, steam tracing has always been the primary means of insulation. The working principle is that heat loss of the insulated pipeline is supplemented by radiating heat through the steam heat tracing pipeline. Because the heat dissipation capacity of the steam is not easy to control, the heat preservation efficiency of the steam is always at a lower level. In the late 70 s and early 80 s of the 20 th century, electric tracing technology has been widely popularized in many industrial sectors including energy industry, and steam tracing is comprehensively replaced by electric tracing. The development of electric tracing technology has been developed to date, from traditional constant power tracing to self-temperature control electric tracing with conductive plastic as core.

The existing heat tracing band has the defect of unstable performance after being used for a long time, sometimes the heat tracing band can explode, the danger is high, researches show that the temperature of the heat tracing band is too high or too low before the heat tracing band explodes, the existing heat tracing band lacks an effective temperature abnormity warning function, and meanwhile, the explosion-proof performance of the heat tracing band is relatively common.

Based on the above, the invention designs an explosion-proof type high-molecular temperature self-control heat tracing band to solve the above mentioned problems.

Disclosure of Invention

The invention aims to provide an explosion-proof type high-molecular automatic temperature control heat tracing band, which can prevent a heating wire from being damaged by protecting the heating wire through polyethylene rubber and an elastic layer, can play an anti-aging effect through a PVC (polyvinyl chloride) resin layer, has a good shielding effect by extruding a cross-linking type semiconductor shielding material into a shielding layer, can play a flame-retardant effect through the flame-retardant layer, has high safety surname, protects the whole body through a protective layer, increases the corrosion resistance of the heat tracing band, has high whole explosion-proof performance, can alarm when the temperature of the heat tracing band is abnormal through an abnormal alarm component, is convenient to protect in advance, and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an explosion-proof type polymer automatic control temperature companion torrid zone, includes two parallel arrangement's heating wire, two the equal crowded package in the heating wire outside has polyethylene rubber, polyethylene rubber outside parcel has the elastic layer, be equipped with unusual alarm subassembly in the elastic layer, the elastic layer outside is equipped with PVC polyvinyl chloride resin layer, PVC polyvinyl chloride resin layer outside is equipped with the shielding layer, the shielding layer outside is equipped with fire-retardant layer, the fire-retardant layer outside is equipped with the armor, the armor outside is equipped with the inoxidizing coating, the inoxidizing coating is made for corrosion-resistant material.

Preferably, the two heating wires are both cylindrical metal wires.

Based on the technical characteristics, the heating effect of the heating wire is ensured.

Preferably, the elastic layer is made of a low density polyethylene material.

Based on the technical characteristics, the elastic layer is ensured to have certain bending performance, and the protection effect on the heating wire is good.

Preferably, the shielding layer is formed by extruding a cross-linking type semiconductor shielding material.

Based on the technical characteristics, the shielding effect of the shielding layer is ensured, and meanwhile, the heat transfer is facilitated.

Preferably, the flame retardant layer is made of one or a mixture of magnesium hydroxide and aluminum hydroxide.

Based on the technical characteristics, the flame retardant effect is good, and the combustion of the heat tracing band can be avoided.

Preferably, the armor layer is formed by weaving tin-plated aluminum alloy wires, and the weaving density of the armor layer is not less than 86%.

Preferably, the abnormity warning assembly comprises a heat insulation shell, the heat insulation shell is connected with the elastic layer, a heat conduction tube penetrates through the bottom of the heat insulation shell, thermal expansion liquid is filled in the heat conduction tube, a piston is arranged in the heat conduction tube, a connecting rod is fixedly connected to the top of the piston, an insulation board is fixedly connected to the top of the connecting rod, a first electrical contact block is arranged at the top of the insulation board, the insulation board is connected with the inner top wall of the heat insulation shell through a spring, an insulation seat is fixedly connected to the inner top wall of the heat insulation shell, a second electrical contact block corresponding to the first electrical contact block is arranged on the insulation seat, a third electrical contact block is arranged on the right side of the bottom of the insulation board, and a fourth electrical contact block corresponding to the third electrical contact block is arranged on the inner right side of the heat insulation shell.

Based on the technical characteristics, when the temperature of the heat tracing band is too high, the thermal expansion liquid hydrothermally expands, the thermal expansion liquid pushes the piston to move, the piston drives the insulating plate to move through the connecting rod, the spring is compressed, and the first electric contact block is in contact with the second electric contact block; when the temperature of the heat tracing band is too low, the third electric contact block is contacted with the fourth electric contact block under the elastic force of the spring.

Preferably, a storage battery and an alarm signal transmitter are arranged in the heat insulation shell, the positive electrode of the storage battery is electrically connected with the alarm signal transmitter and the first electric contact block, the negative electrode of the storage battery is electrically connected with the second electric contact block, the positive electrode of the storage battery is electrically connected with the alarm signal transmitter and the third electric contact block, and the negative electrode of the storage battery is electrically connected with the fourth electric contact block.

Based on the technical characteristics, when the temperature of the heat tracing band is abnormal, the alarm signal transmitter sends out an alarm signal to remind workers of paying attention.

An explosion-proof type macromolecule temperature self-control heat tracing band, the use method of the heat tracing band is as follows: when the temperature tracing band is too low, the third electric contact block is contacted with the fourth electric contact block under the action of the elastic force of the spring, and the storage battery, the third electric contact block, the alarm signal emitter and the fourth electric contact block form a closed loop, the alarm signal emitter sends out an alarm signal to remind the heat tracing band that the temperature is abnormal, and the explosion of the heat tracing band caused by the abnormal temperature can be avoided.

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

the heating wire is protected by the polyethylene rubber and the elastic layer, the heating wire can be prevented from being damaged, the PVC polyvinyl chloride resin layer can play an anti-aging effect, the shielding layer is extruded by the cross-linked semiconductor shielding material, the shielding effect is good, the flame retardant effect can be played by the flame retardant layer, the safety is high, the whole body is protected by the protective layer, the corrosion resistance of the heat tracing band is improved, the whole explosion-proof performance of the heat tracing band is high, meanwhile, the alarm can be given when the temperature of the heat tracing band is abnormal through the abnormal alarm component, and the advance protection is facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic three-dimensional structure of a heat tracing band according to the present invention;

FIG. 2 is a schematic view of the two-dimensional internal structure of the heat tracing band of the present invention;

FIG. 3 is a schematic view of an anomaly alarm device according to the present invention.

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 of an explosion-proof type polymer self-temperature-controlling heat tracing band: the device comprises two parallel heating wires 1, polyethylene rubber 8, an elastic layer 2, an abnormal alarm component 9, a PVC (polyvinyl chloride) resin layer 3, a shielding layer 4, a flame retardant layer 5, an armor layer 6 and a protective layer 7; protect heater conductor 1 through polyethylene rubber 8 and elastic layer 2, can avoid heater conductor 1 to receive the damage, can play the effect of ageing resistance through PVC polyvinyl chloride resin layer 3, through crowded package of cross-linking type semiconductor shielding material shielding layer 4, shielding effect is good, can play fire-retardant effect through fire-retardant layer 5, safe surname is high, protect whole through inoxidizing coating 7, increase the corrosion resistance in companion's tropical, the whole explosion-proof ability in companion's tropical is high, can report to the police when companion's tropical temperature is unusual simultaneously through unusual alarm assembly 9, be convenient for protect in advance.

The two heating wires 1 are cylindrical metal wires, so that the heating effect of the heating wires is ensured; the elastic layer 2 is made of low-density polyethylene material, so that the elastic layer has certain bending performance and good protection effect on the heating wire 1; the shielding layer 4 is formed by extruding and wrapping a cross-linking type semiconductor shielding material, has a good shielding effect and is convenient for heat transfer.

The flame-retardant layer 5 is made of one or a mixture of magnesium hydroxide and aluminum hydroxide, and has a good flame-retardant effect; the armor layer 6 is formed by weaving tinned aluminum alloy wires, and the weaving density of the armor layer 6 is not less than 86%.

Referring to fig. 3, the abnormal alarm assembly 9 includes a heat insulating housing 91, the heat insulating housing 91 is connected to the elastic layer 2, a heat conducting cylinder 92 penetrates through the bottom of the heat insulating housing 91, a thermal expansion liquid 93 is filled in the heat conducting cylinder 92, a piston 94 is disposed in the heat conducting cylinder 92, a connecting rod 95 is fixedly connected to the top of the piston 94, an insulating plate 96 is fixedly connected to the top of the connecting rod 95, a first electrical contact block 97 is disposed on the top of the insulating plate 96, the insulating plate 96 is connected to the inner top wall of the heat insulating housing 91 through a spring 910, an insulating base 98 is fixedly connected to the inner top wall of the heat insulating housing 91, a second electrical contact block 99 corresponding to the first electrical contact block 97 is disposed on the insulating base 98, a storage battery 911 and an alarm signal transmitter 912 are disposed in the heat insulating housing 91, and the positive electrode of the storage battery is electrically connected to the alarm signal transmitter 912 and the first electrical contact block 97, the negative electrode of the storage battery 911 is electrically connected with the second electric contact block 99, when the temperature of the heat tracing band is too high, the thermal expansion liquid 93 expands due to heat, the thermal expansion liquid 93 pushes the piston 94 to move, the piston 94 drives the insulating plate 96 to move through the connecting rod 95, the spring 910 is compressed, the first electric contact block 97 is in contact with the second electric contact block 99, a closed loop is formed among the storage battery 911, the first electric contact block 97, the alarm signal transmitter 912 and the second electric contact block 99, the alarm signal transmitter 912 sends out an alarm signal to remind that the temperature of the heat tracing band is abnormal, the right side of the bottom of the insulating plate 96 is provided with a third electric contact block 913, and the right side in the heat insulation shell 91 is provided with a fourth electric contact block 914 corresponding to the third electric contact block 913; the positive pole of the storage battery 911 is electrically connected with the alarm signal emitter 912 and the third electrical contact block 913, the negative pole of the storage battery 911 is electrically connected with the fourth electrical contact block 914, when the temperature of the heat tracing band is too low, the third electrical contact block 913 is in contact with the fourth electrical contact block 914 under the action of the elastic force of the spring 910, a closed loop is formed among the storage battery 911, the third electrical contact block 913, the alarm signal emitter 912 and the fourth electrical contact block 914, and the alarm signal emitter 912 emits an alarm signal.

The specific working principle is as follows:

when the heat tracing band is used, when the heat tracing band works normally, the heat tracing band is in a certain temperature range, at the moment, the first electric contact block 97 is not in contact with the second electric contact block 99, the third electric contact block 913 is not in contact with the fourth electric contact block 914, when the temperature of the heat tracing band is too high, the thermal expansion liquid 93 expands hydrothermally, the thermal expansion liquid 93 pushes the piston 94 to move, the piston 94 drives the insulating plate 96 to move through the connecting rod 95, the spring 910 is compressed, the first electric contact block 97 is in contact with the second electric contact block 99, a closed loop is formed among the storage battery 911, the first electric contact block 97, the alarm signal transmitter 912 and the second electric contact block 99, the alarm signal transmitter 912 sends out an alarm signal to remind that the temperature of the heat tracing band is abnormal, when the temperature of the heat tracing band is too low, the third electric contact block 913 is in contact with the fourth electric contact block 914 under the action of the elastic force of the spring 910, and the storage battery 911, A closed loop is formed among the third electrical contact block 913, the alarm signal emitter 912 and the fourth electrical contact block 914, and the alarm signal emitter 912 emits an alarm signal to remind the heat tracing band of abnormal temperature, so that the explosion of the heat tracing band caused by the abnormal temperature can be avoided.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.