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Vacuum heating oil pipe

2015 
The invention discloses a vacuum heating oil pipe. The vacuum heating oil pipe comprises an inner pipe, wherein connecting threads are arranged at the two ends of the inner pipe, an outer pipe is arranged outside the connecting threads, a vacuum cavity is formed between the inner pipe and the outer pipe, an electric heating element is located in the vacuum cavity and around the inner pipe, and conductive hoops are arranged at the two ends of the electric heating element and the two ends of the inner pipe. The vacuum heating oil pipe has the advantages that the vacuum heating oil pipe has a heating effect through the electric heating element between the inner pipe and the outer pipe, the vacuum cavity between the inner pipe and the outer pipe further has the effects of reducing heat loss and heat radiation towards the outer pipe, a heat preservation and heat insulation effect is better realized, and the vacuum heating oil pipe further has use safety, high reliability and long service life.
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