Controllable-temperature delivery pipe
A technology of conveying pipe and inner pipe, applied in the field of conveying pipe, can solve the problems of difficulty in conveying liquid paraffin, blockage of paraffin, etc.
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[0012] Such as figure 1 A temperature-controlled conveying pipe shown includes: an inner pipe 1 and an outer pipe 2; the outer pipe 2 is sleeved on the inner pipe 1, and the inner diameter of the outer pipe 2 is larger than the outer diameter of the inner pipe 1; the inner pipe 1 and liquid paraffin The output port A is connected; the outer pipe is connected with the heating output port B; the inner wall of the inner pipe is provided with a temperature sensing device 3; the heating output port B is the steam heating output port;
[0013] The present invention adopting the above technical solution realizes a ring tube with an annular cavity through the outer tube 2 sheathing the inner tube 1. Since the outer tube is connected to the heat supply outlet B, when the heat supply outlet B supplies heat , Will move along the annular cavity, so that a hot line is formed on the outer wall of the inner tube 1 that transports liquid paraffin, and the inner wall of the inner tube is provided...
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