CN2829272Y - Environment protection double-shielded geothermal cable - Google Patents

Abstract

The utility model discloses an environment protection double-shielding geothermal cable which is composed of wire cores 1, an insulation sheath layer 2 and an outer sheath layer 3, wherein an aluminium foil shielding layer 4 and a metal guide wire protection net 5 are orderly sheathed between the insulation sheath layer 2 and the outer sheath layer 3 from inside to outside. The environment protection double-shielding geothermal cable adopts double-layer shielding structure, environment protection type XLPE crosslinked polyethylene material and low smoke and low halogen polyethylene material, thereby, the utility model has good insulating property and shielding property. The utility model can not generate harmful substances to human bodies under any state, and raise environmental protection property. Because the wire cores are made of high efficiency heat generation special alloy material, and adds the metal guide wire protection net, the utility model prolongs the service life, enhances the tensile strength and further enhances the shielding effect. The geothermal cable has reasonable structure and advanced obtaining material, is favorable to reasonable heating, is favorable to health of the human bodies and is favorable to popularization in terrestrial heat heating systems.

Description

Environment-friendly type double shield Geothermal electric cable

Technical field

The utility model relates to the heating cable that a kind of indoor heating is used, specifically a kind of environment-friendly type double shield Geothermal electric cable.

Background technology

Present stage, indoor heating in winter mode mainly contains two kinds in China: the one, and heating installation, the 2nd, electric heating equipment, its cooling system all is loaded on more than the flooring, its weak point is: the one, because relative superiority or inferiority is low on the indoor temperature, do not meet warming resisting cold and focus on legs and feet, the not cold scientific and reasonable health care theory of the warm then body of pin; The 2nd, the energy consumption height has strengthened user's financial burden; The 3rd, temperature is difficult for adjusting, family and family inequality, chamber and chamber inequality, up and down inequality, and the temperature comfortableness is poor, particularly heating installation heating, when too high, the method cooling that often adopting windows ventilates causes energy waste serious; The 4th, can not single household the control metering, charge, particularly collective's heating, single home metering, the quite difficulty of chargeing cause with many that economy consciousness is poor with few samples, to some houses that need not heat air feed of also having to, cause unnecessary waste.For improving the deficiency of above heating system, at present, the advanced heating system of Gong Rening is to adopt the Geothermal electric cable heating technology in the world, promptly utilize the pure resistance circuit, by heating element and intelligent temperature control system heating, this heating technology adopts underground heating mode, the Inteldectualization Indoors management, charging is controlled at the branch family automatically, can overcome the deficiency of above technology, and have noiselessness, no flue dust, no waste gas, conserve space, have a narrow range of temperature, non-maintaining, advantage such as applied widely, used heating cable is made of core and external sheath layer, external sheath layer PVC, PA, thermoplastics such as HDPE wherein contain plasticizer and heat stabilizer; What also have adds monolayer insulating layer between core and external sheath layer, these heating cable heating-up temperatures can reach 80-2300 ℃, can reach the purpose of effective heating, but there are some shortcomings in the Geothermal electric cable that uses at present: the one, because this heating cable has electromagnetic radiation, there is big magnetic field, so health of human body is produced certain influence to hazard to person; The 2nd, it is inhomogeneous, easily aging to dispel the heat; The 3rd, the additive during in heating, particularly in burning in the plastics can produce a small amount of poisonous chimney gas, and long-term use can be polluted living environment; Four are to use the life-span short, can't guarantee and the same equivalent life of building.

Summary of the invention

The purpose of this utility model is to provide a kind of state-of-the-art heating technology of generally acknowledging in the world at present that both adopted, bring into play its advantage, can overcome the deficiency that exists in the present heating cable again, make heating cable heat radiation evenly, the environment-friendly type double shield Geothermal electric cable of electromagnetic-radiation-free, anti-aging, the no poison gas generation in the back that is heated, long service life.

For reaching above purpose; the technical scheme that the utility model adopted is: this environment-friendly type double shield Geothermal electric cable; by core; the insulation jacket layer; external sheath layer constitutes; core is located at the center of insulation jacket layer; it is characterized in that from inside to outside sheathed successively foil shielding layer and wire guide catch net between insulation jacket layer and external sheath layer; foil shielding layer mainly contains the effect of electromagnetic radiation shielding; the effect that also has simultaneously insulation; thereby make the insulation property of core better; the wire guide catch net mainly plays electromagnetic radiation shielding, guarantees that human body is not subjected to the injury of high-intensity magnetic field.The utility model is also implemented by following measure: described core is a heating conductor, can establish three, make by the special alloy material, this special alloy material heating efficiency height, heatproof is up to 1250 ℃, and normal serviceability temperature is below 60 ℃, thus can not cause any wearing out to material itself, thus guarantee its useful life; Described insulation jacket layer is injection molded with the XLPE crosslinked polyethylene; Described external sheath layer is injection molded with low cigarette, low chimney polyvinyl chloride, heatproof can reach 105 ℃, makes it can not discharge any pernicious gas under febrile state, promptly is under fired state, also do not have poison gas and produce, XLPE crosslinked polyethylene and low cigarette, low chimney polyvinyl chloride are environment-friendly type plastic; The wire guide catch net is formed by steel wire or welding wire braiding, is set in the outside of foil shielding layer, and steel wire has advantages of higher tensile strength; make cable be difficult for drawing crack; welding wire had both had stronger tensile property, had the shield effectiveness of copper again, can further improve shielding properties.When using the utility model, below indoor floor, lay environmental protection heat-barrier material and reflectance coating earlier, to improve heat utilization efficiency, above again environment-friendly type double shield Geothermal electric cable being layered on, form the floor heating net, connect intelligent temperature control equipment in the outer end of environment-protection ground electric heating cable, timely adjustment automatically as required.

The beneficial effects of the utility model are: with at present in adopting state-of-the-art heating technology employed Geothermal electric cable compare owing to adopted double-layer shielding structure, make its insulation property and shielding properties better; Because insulation jacket layer and external sheath layer have adopted environment-friendly type XLPE cross-linking polyethylene materials and low cigarette, low chimney polythene material respectively, make it under any state, can not produce harmful substance, so increased environmental-protecting performance to human body; Because core adopted efficient heating special alloy material, prolonged its useful life significantly, can with the same equivalent life of building; Owing to added the wire guide catch net, made it increase tensile strength, and further improved shield effectiveness.Therefore, this Geothermal electric cable structure is more reasonable, and it is more advanced to draw materials, and not only favourable reasonable heating also helps the health of human body, more helps applying in the geothermal heating system system.

Description of drawings

Fig. 1 is the utility model structure cross section cross-sectional schematic successively.

Fig. 2 analyses and observe enlarged diagram for the utility model along the A-A section.

Embodiment

Make the utility model with reference to accompanying drawing 1,2.This environment-friendly type double shield Geothermal electric cable is made of core 1, insulation jacket layer 2, external sheath layer 3, and core 1 is located at the center of insulation jacket layer 2, from inside to outside sheathed successively foil shielding layer 4 and wire guide catch net 5 between insulation jacket layer 2 and external sheath layer 3.Described core 1 is a heating conductor, can establish three, is made by the special alloy material, this special alloy material heating efficiency height, heatproof are up to 1250 ℃, and normal serviceability temperature is below 60 ℃, so can not cause any wearing out to material itself, thereby guarantee its useful life; Described insulation jacket layer 2 usefulness XLPE crosslinked polyethylenes are injection molded; Described external sheath layer 3 usefulness are hanged down cigarette, low chimney polyvinyl chloride is injection molded, heatproof can reach 105 ℃, makes it can not discharge any pernicious gas under febrile state, promptly is under fired state, also do not have poison gas and produce, XLPE crosslinked polyethylene and low cigarette, low chimney polyvinyl chloride are environment-friendly type plastic; Wire guide catch net 5 is formed by steel wire or welding wire braiding, is set in the outside of foil shielding layer 4, and steel wire has advantages of higher tensile strength; make cable be difficult for drawing crack; welding wire had both had stronger tensile property, and the shield effectiveness of copper is arranged again, can further improve shielding properties.

Claims (2)

1, a kind of environment-friendly type double shield Geothermal electric cable; constitute by core (1), insulation jacket layer (2), external sheath layer (3); core (1) is located at the center of insulation jacket layer (2), it is characterized in that from inside to outside sheathed successively foil shielding layer (4) and wire guide catch net (5) between insulation jacket layer (2) and external sheath layer (3).

2, environment-friendly type double shield Geothermal electric cable according to claim 1 is characterized in that described core (1) is a heating conductor, can establish three; Described insulation jacket layer (2) is injection molded with the XLPE crosslinked polyethylene; Described external sheath layer (3) is injection molded with low cigarette, low chimney polyvinyl chloride; Wire guide catch net (5) is formed by steel wire or welding wire braiding, is set in the outside of foil shielding layer (4).

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