CN2501015Y

CN2501015Y - High-efficient radiating welded copper pipe with multiplegroups of female screws

Info

Publication number: CN2501015Y
Application number: CN 01264606
Authority: CN
Inventors: 蔺树义
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-07
Filing date: 2001-09-07
Publication date: 2002-07-17
Anticipated expiration: 2011-09-07

Abstract

The utility model discloses a multi-group internal thread welding copper tube with high heat dissipation efficiency, belonging to heat exchange or heat transfer tube used for heat transfer equipment technology field. The inner wall of the copper tube has a plurality of groups of internal threads whose parameters such as the gear height, the gear pitch, the gear model and the helix angle relative to tube axis are not all equal to the parameters of other internal threads. Thus this heat transfer tube makes the flow direction of medium be thrown into confusion due to the function of a plurality of groups of internal threads on the inner wall, and the parameters of the internal thread, such as the gear height, the gear pitch, the gear model and the helix angle relative to tube axis are not all equal to the parameters of other internal threads. Therefore the heat energy internal and external can exchange quickly, and exchange with the medium out of the tube through tube body with good performance of thermal conductivity. So the purpose of heat transfer with high efficiency is achieved, and the effectiveness of quick heat-transferring and high heat-transferring efficiency is realized. In addition, compared with prior seamless copper heat transfer optical tube and seamless copper single-group internal thread heat transfer tube, this heat transfer tube has the advantages: 1. simple processing technology, small investment on processing equipment, high production speed, high production efficiency, and low production cost; 2. the raw material is copper strip which is rolled well, and the prepared tube has tube wall with uniform thickness, good quality, characteristic of cleanness.

Description

Many group internal thread high efficiency and heat radiation welding copper pipes

Technical field

The utility model relates to a kind of heat-transfer pipe, particularly a kind of many group internal thread high efficiency and heat radiation welding copper pipes, belongs to the parts technical field of heat exchange or heat-transfer equipment.

Background technology

The heat-transfer pipe that heat exchange at present or heat-transfer equipment are used, the radiating tube that uses as air-conditioner all is seamless light pipe and seamless single group riffled tube, though adopt the copper product manufacturing of good heat conductivity, heat transfer efficiency still is not ideal enough.

Summary of the invention

Technical problem to be solved in the utility model is seamless copper heat-transfer light pipe and the dissatisfactory problem of seamless copper list group female screw heat-transfer pipe heat transfer efficiency that existing heat exchange or heat-transfer equipment are used, and provides heat exchange or heat-transfer equipment a kind of many group internal thread high efficiency and heat radiation welding copper pipes.

The technical scheme in the invention for solving the technical problem is: this many group internal thread high efficiency and heat radiation welding copper pipes, tooth depth, tooth pitch, flute profile and the many group internal thread different with respect at least one parameter of helical angle of tubular axis line are arranged on its inwall, be: at first at the rolling tooth depth of the copper strips got ready one side, tooth pitch, many groups striped that at least one parameter of flute profile and angle is different, again copper strips is rolled into pipe, after operations such as welding, tube reducing, sizing, annealing are made.

The many groups internal thread that has on the above-mentioned inside pipe wall has two groups at least.

This many group internal thread high efficiency and heat radiation welding copper pipes provided by the utility model, the flow direction of medium is owing to tooth depth on the tube wall in the pipe, tooth pitch, the effect of flute profile and many groups internal thread of being not quite similar with respect to parameters such as tubular axis line helical angles and being upset, inside and outside heat energy exchanges rapidly, and pass through the body of good heat conductivity and manage outer Medium Exchange, thereby reach the purpose of efficient heat transfer, produce and conduct heat soon, the effect of heat transfer efficiency height, in addition, such heat-transfer pipe is compared with seamless copper list group female screw heat-transfer pipe with existing seamless copper heat-transfer light pipe, also has following advantage:

1, processing technology is simple, the process equipment investment is little, speed of production is fast, production efficiency is high, production cost is low;

2, raw material is rolling good copper strips, and the thickness of pipe wall of preparation is even, quality good, cleaning.

Description of drawings

Two groups of internal thread high efficiency and heat radiations that Fig. 1 is provided for the utility model embodiment weld the partial sectional view of copper pipes.

The copper strips schematic diagram of two groups of stripeds that parameters such as tooth depth, tooth pitch, flute profile and angle are not quite similar is provided for the one side of two groups of internal thread high efficiency and heat radiations welding copper pipes being used to prepare the utility model embodiment and providing is rolling Fig. 2.

The specific embodiment

With reference to accompanying drawing, two groups of internal thread high efficiency and heat radiation welding copper pipes that the utility model embodiment is provided, have on its inwall with respect to the tubular axis line and be right-handed screw angle a1 and be two groups of internal threads (1,2) of negative helical angle a2 with respect to the tubular axis line, be: at first at the different striped (1 ', 2 ') of the rolling two groups of angles of the copper strips got ready one side (a1 ', a2 '), again copper strips is rolled into pipe, after operations such as welding, tube reducing, sizing, annealing are made.

Claims

1, a kind of many group internal thread high efficiency and heat radiation welding copper pipes is characterized in that: tooth depth, tooth pitch, flute profile and the many group internal thread different with respect at least one parameter of helical angle of tubular axis line are arranged on its inwall.

2, many group internal thread high efficiency and heat radiation welding copper pipes according to claim 1 is characterized in that: have on its inwall with respect to the tubular axis line to be right-handed screw angle (a1) and to be two groups of internal threads (1,2) of negative helical angle (a2) with respect to the tubular axis line.