Forming furnace for multiple specifications of pipes

Abstract

The invention discloses a forming furnace for multiple specifications of pipes. The forming furnace for multiple specifications of pipes comprises a furnace barrel and further comprises a sleeve with the outer diameter smaller than the inner diameter of the furnace barrel, wherein the end of the sleeve is in bolted connection with the furnace barrel through a flange plate, the space between the sleeve and the furnace barrel is filled with a heat conduction material, and multiple specifications of sleeves are provided. At least one annular heat insulation plate is arranged on the outer wall of the sleeve and divides the outer wall of the sleeve into at least two heating areas, and when the sleeve is installed in a furnace barrel, the heat insulation plate is in contact fit with the inner wall of the furnace barrel. By arranging the sleeve with the outer diameter smaller than the inner diameter of the furnace barrel, a furnace does not need to be additionally arranged when a pipeline with a small pipe diameter is machined; the heat conduction material fills the space between the sleeve and the inner wall of the furnace barrel, heat energy can be effectively conducted, and heat source loss can be reduced; and sleeves of other specifications can be conveniently disassembled and replaced through the flange plate bolt connection manner. The forming furnace is effectively suitable for machining of the pipes of multiple specifications, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of glass fiber pipe manufacturing, in particular to a multi-standard pipe forming furnace. Background technique [0002] There are pipelines everywhere in daily life, such as underground pipelines and surface pipelines, including large water pipelines, sewage pipelines and oil pipelines. Considering the use and strength of various existing relatively large pipelines, glass fiber mixture is basically used as the raw material for making pipelines. To make fiberglass pipes, it is necessary to send the pipe material wrapped on the mandrel into a heating and forming furnace for curing and molding, and then be pulled out of the furnace under the action of a tractor to complete the pipe production. [0003] In addition to large pipes, there are many small pipes of different specifications, which require different forming furnaces for matching due to their different diameters. There are many specifications of the inner diam...

AI Technical Summary

Problems solved by technology

There are many specifications of the inner diameter of the commonly used forming furnace, such as 100, 125, 150, 175, 200, etc. When manufacturers produce pipes for different purposes, they match different forming furnaces according to their specifications. However, the forming furnace is expensive. The production of corresponding forming furnaces for each type of pipe makes the overall production cost very high. Therefore, how to reduce the cost of the forming furnace while ensuring the adaptive production of various pipes of different specifications, we specially designed the present invention

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