CN208414307U - A kind of Far-infrared radiation heating PE-RT pipe - Google Patents

Abstract

The utility model relates to Far-infrared radiation heating PE-RT pipes, for low-temperature floor radiant heating, wall heating and ceiling heating system, it is characterized in that pipeline uses two-layer composite, pipeline lining is I type or II type PE-RT, and pipeline outer-layer uses Far-infrared radiation heating composite material.The utility model has the advantages that endothecium structure guarantees that product has excellent hydrostatic strength and service life under heating temperature, layer structure can produce the far infrared that wavelength is 0.4-40 μm, emissivity is greater than 0.87, the infrared ray can be obviously improved heating efficiency, energy consumption is reduced, blood circulation of human body and atmospheric environment are improved.

Description

A kind of Far-infrared radiation heating PE-RT pipe

[technical field]

The utility model relates to PE-RT pipeline modification technologies, specifically, being a kind of Far-infrared spoke during heating Penetrate fever PE-RT pipe.

[technical background]

With the raising of China's expanding economy and living standards of the people, environmental protection, comfortable, health heating system become more Carry out more Man's Demands, whether northern central heating and south need heating to become focus.Low-temperature floor radiant heating relies on Room temperature, which is evenly distributed, saves the advantages such as space, long service life and environment protection health gradually replaces radiator heating, rain Market has been captured as spring bamboo afterwards.In floor heating pipeline product, the share of I type PE-RT and II type PE-RT are higher than 53%, occupy The half of the country in duct products markets.But PE-RT thermal coefficient is low, and heat radiation efficiency is slow, and a large amount of thermal energy, which are wasted in, to be supplied back On water route；And with the expansion of heating range, the contradictory problems of heating and air pollution also become increasingly conspicuous, the first two years northern areas Continuous " haze " day occur, body and psychology to people cause to seriously affect.

To solve the above problems, country increases comprehensive environmental improvement dynamics, energy conservation and environmental protection is advocated.Meanwhile National Energy Board Can be worked out with relevant departments such as finance, environmental protection, house town and country constructions " the cleaning heating planning of northern area winter (2017~ 2021) ", from the angle of environmental protection and efficiency of energy utilization, promotion is employed new technology, before guaranteeing heating effect Put promotion energy-saving and emission-reduction.

[utility model content]

The purpose of the utility model is to overcome the radiation efficiency of existing PE-RT pipeline is low, a kind of radiation-curable wavelength is provided For the PE-RT heating pipe of 0.4-40 μm of far infrared.

The realization of the content of the utility model mainly passes through following technical proposals:

A kind of Far-infrared radiation heating PE-RT pipeline, which is characterized in that formed by outer layer and internal layer composite co-extruding；Wherein The material of internal layer is I type PE-RT or II type PE-RT material；Outer layer is Far-infrared radiation heating composite material；

PE-RT is heat-proof polythene.

The Far-infrared radiation heating composite material, the mass percent of raw material are as follows: 5~10% graphene, 1~ 3% zirconium dioxide, 2~5% ceramic powder, 1~2% cobalt sesquioxide, 4~10% compatilizer and 0.5% antioxygen Agent, PE-RT are surplus.

The graphene, zirconium dioxide, ceramic powder, the particle size range of cobalt sesquioxide are respectively 50~200nm, and 100 ~500nm, 10~100nm, 80~400nm；Far infrared powder is nanoscale.

Coupling agent is one or more of silane coupling agent, titanate coupling agent and aluminate coupling agent.

Compatilizer is that maleic anhydride is grafted PE, maleic anhydride is grafted POE or maleic anhydride is grafted one of LLDPE or several Kind, grafting rate >=0.6%, melt flow rate (MFR) >=0.5g/10min (5kg, 190 DEG C).

The far infrared powder in compound preceding carry out surface modification treatment, by coupling agent in the dehydrated alcohol of PH=4 and In the solution of water, the volume ratio of dehydrated alcohol and water is 3:1, ultrasonic disperse 20~30 minutes；Then graphene, titanium dioxide is added Zirconium, ceramic powder and cobalt sesquioxide powder ultrasonic disperse 10~20 minutes, react 35~45 points in 65~70 DEG C of water-bath Clock；It is finally putting into oven drying 1~60 minute, obtains the far infrared powder of surface modification treatment.

The Far-infrared radiation heating composite material, preparation method are as follows: will be after surface modification treatment using mixer Far infrared powder, PE-RT, compatilizer be kneaded uniformly, be then granulated using dual-screw pelletizer, pelletizer draw ratio >= 40:1。

A kind of Far-infrared radiation heating PE-RT pipeline, preparation method are as follows: squeezed jointly using two single screw extrusion machines Out, extruder processing temperature is 170~190 DEG C, and the ratio of pipeline ectonexine wall thickness is 9:1~10:1.

Compared with prior art, the good effect of the utility model is:

1. PE-RT tubing prepared by the utility model during heating, significantly increases sample in 40 DEG C of all-wave lengths With segmentation wavelength far infrared emissivity, and the electromagnetic wave of 0.4-40 mu m waveband can provide it is faint required for human cell tissue Energy, can promote the sendible temperature of people, to promote indoor heating efficiency.Secondly, far infrared is that a kind of pair of human body is beneficial Light, far infrared are used widely to the resonance effectiveness of cell, osmosis, warm effect in health-preserving industry.

2. PE-RT tubing prepared by the utility model is at 30~50 DEG C, radiation-curable wavelength is remote red at 0.4-40 μm Outside line, and emissivity is greater than 0.87.

3. the utility model by be added acid anhydrides graft, enhance Far-infrared radiation heating composite material heterogeneity it Between interface cohesion dynamics so that far infrared powder disperse in the base it is more uniform.

[Detailed description of the invention]

Fig. 1 is the radial and axial sectional view of Far-infrared radiation heating PE-RT pipe；1a is radial cutaway view, and 1b is axial Sectional view；

Label in attached drawing is respectively as follows: 1, I type PE-RT or II type PE-RT internal layer；2, Far-infrared radiation heating outer layer；

[specific embodiment]

A kind of presented below specific embodiment of Far-infrared radiation heating PE-RT pipe.

Firstly, coupling agent ultrasonic disperse 20~30 minutes, is added in the solution (dehydrated alcohol: water=3:1) of PH=4 Enter nanoscale graphite alkene, zirconium dioxide, ceramic powder and cobalt sesquioxide powder, ultrasonic disperse 10~20 minutes, at 65~70 DEG C Water-bath in react 35~45 minutes, be finally putting into oven drying 1~60 minute, pack it is spare.

Then, PE-RT, the modified far infrared powder in surface and interfacial compatibilizer are added to mixing according to a certain percentage In machine be kneaded uniformly, use draw ratio for the dual-screw pelletizer of 40:1, technological temperature be 170~190 DEG C under conditions of into Row reaction is granulated, and the particle after granulation is the raw material for producing pipeline outer-layer.

Finally, one extruder uses I type PE-RT or II type PE-RT conduct using the common extrusion molding of two extruders Raw material squeezes out inner tube；One extruder squeezes out outer tube as raw material using the pellet after being granulated, and the melt of two extruders is in mould In tool in the ratio of internal layer and outer layer wall thickness be 9:1~10: be shaped to Double-layer pipe structure.

Embodiment 1

A kind of Far-infrared radiation heating PE-RT pipe, internal layer wall thickness account for the 90% of total wall thickness, and outer layer wall thickness accounts for total wall thickness 10%.Internal layer uses I type PE-RT, and the formula of outer layer of composite material is that coupling agent uses silane coupling agent KH570, and compatilizer is Maleic anhydride grafted polyethylene 5%, graphene 8%, zirconium dioxide 1%, ceramic powder 3%, cobalt sesquioxide 1%, antioxidant 0.5%, PE-RT carrier 81.5%.

Through detecting, sample far infrared wave-length coverage is 0.9~18 μm, when temperature is 30 DEG C, infrared emittance 0.88.

Embodiment 2

A kind of Far-infrared radiation heating PE-RT pipe, internal layer wall thickness account for the 90% of total wall thickness, and outer layer wall thickness accounts for total wall thickness 10%.Internal layer uses II type PE-RT, and the formula of outer layer of composite material is that coupling agent uses silane coupling agent KH570, and compatilizer is Maleic anhydride grafted polyethylene 7.2%, graphene 9%, zirconium dioxide 3%, ceramic powder 5%, cobalt sesquioxide 2%, antioxidant 0.5%, PE-RT carrier 73.3%.

Through detecting, sample far infrared wave-length coverage is 0.6~32 μm, when temperature is 45 DEG C, infrared emittance 0.93.

The above is only 2 kinds of embodiments of the utility model, it is noted that is not departing from the utility model design Under the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as in the protection scope of the utility model.

Claims (1)

1. a kind of Far-infrared radiation heating PE-RT pipe, which is characterized in that be combined by outer layer and internal layer；The wherein material of internal layer Material is I type PE-RT or II type PE-RT material；Outer layer is Far-infrared radiation heating composite material；

The ratio of the wall thickness of internal layer and outer layer is 9:1~10:1.