A circulating steam pipe cross-linking equipment

Abstract

The invention relates to a cross-linking processing device of a silane-containing polyethylene material pipe. The circulation steam pipe cross-linking device comprises a thermal insulation cover withupper windows divided into two halves, a surrounding thermal insulation shell and a bottom thermal insulation base. A first ventilation channel is arranged in the middle in the device. The inner sideof the thermal insulation shell is provided with a second ventilation channel, a circulation steam passage is formed by a circulation fan, a water tank is fixed to the upper part of the first ventilation channel and a second heating finned tube is arranged in the water tank. The cross-linking processing device realizes uniform distribution of the steam humidity, heat energy and space, has a smoothcirculation passage, is suitable for pipes needing fast cross-linking and guarantees uniform cross-linking of a large amount of pipes in short time. The cross-linked pipe has greatly improved cross-linking speed and quality, realizes a low cost and has the competitive advantages in the market.

Description

technical field [0001] The invention relates to production equipment for pipes, in particular to cross-linking process equipment for pipes containing silane-containing polyethylene materials. Background technique [0002] Aluminum-plastic pipes for building water supply and cross-linked polyethylene pipes (PE-Xb) for heating, because they contain silane cross-linked polyethylene, have the characteristics of high hot water temperature, long service life and good corrosion resistance. The pipeline industry has developed rapidly and been widely used. [0003] At present, the extrusion equipment of silane-containing polyethylene pipes is mature, but the development of cross-linking equipment is slow and unreasonable. At present, the methods adopted in China include: 1. No cross-linking or natural cross-linking after extrusion. At present, most domestic enterprises are trying to reduce The cost adopts this scheme. Second, cross-linking by circulation in the hot water pipe, or c...

AI Technical Summary

Problems solved by technology

Second, there are problems such as high cost, low efficiency, and inexhaustible removal of water in the indwelling pipe, etc.

[0004] Notification No. CN 104669494A published about "wire and cable steam type cross-linking pool device" is relatively feasible for cable cross-linking, but for aluminum-plastic pipes or cross-linked polyethylene pipes, there are problems that are not applicable, such as steam flowing in the equipment. Generally, the time required for cross-linking is too long, which will lead to cross-linking deformation of the pipe in a hot state, and the uniformity of cross-linking is also poor. For example, the pipe is a coil of a whole coil, and the cross-linking is inconsistent, and the pipe with a middle hole needs to be faster. Faster crosslinking speed and more reasonable crosslinking equipment

Images