CN2932279Y

CN2932279Y - Highly efficient internal-ribbed spiral tendon composite heat exchange pipe

Info

Publication number: CN2932279Y
Application number: CN 200620073027
Authority: CN
Inventors: 王正鹏; 张炳芝
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-27
Filing date: 2006-04-27
Publication date: 2007-08-08
Anticipated expiration: 2016-04-27

Abstract

The utility model relating to a highly active inner costae helices tendon recombination heat exchange tube is mostly designed for heat exchanging in air-conditioning system. It combined from inside to outside by an inner tube (1) and an outer sleeve (2) is characterized that consist: the inner tube (1) is a light pipe; the outer sleeve (2) is highly active inner costae helices tendon tube; the outer sleeve (2) has highly active inner costae helices tendon (21) in its inner wall. Inner tube of the utility model is not easy to be begrimed and has higher heat exchange efficiency.

Description

Efficient internal-rib spiral bar composite heat-exchange pipe

Technical field:

The utility model relates to a kind of multiple tube.Be specifically related to a kind of efficient internal-rib spiral bar composite heat-exchange pipe.Be mainly used in the heat exchange of air-conditioning system.Belong to heat transmission equipment attachment technique field.

Background technology:

Before the utility model was made, traditional composite heat-exchange pipe had two kinds of versions: a kind of is the multi-head spiral multiple tube, and another kind is high tooth multiple tube.It mainly has the following disadvantages:

One, multi-head spiral multiple tube: the outer tube of multi-head spiral multiple tube is a light pipe, and interior pipe is a multi-start helical tubes, walks cooling water in the interior pipe, walks refrigerant in the tube chamber between interior pipe and the outer tube.Owing to all be furnished with multi-head spiral groove on the inside and outside tube wall of pipe in this multi-head spiral, on the one hand, easy scaliness in the helicla flute on the inner tube wall causes interior pipe plug plug and reduces heat exchange efficiency; On the other hand, in can causing, helicla flute on the outer wall of inner tube can't combine closely between pipe and the outer tube, cause in the tube chamber of a part of refrigerant between interior pipe and outer tube and keep straight on, shortened the helical pitch of refrigerant like this, reduce the heat exchange area between refrigerant and the outer wall of inner tube, also reduced heat exchange efficiency.

Two, high tooth multiple tube: the outer tube of high tooth multiple tube is a light pipe, and interior Guan Weigao tooth pipe promptly is furnished with high tooth on the outer wall of inner tube face, and inner tubal wall is the light wall.Though it has solved the interior pipe scaliness problem of multi-head spiral multiple tube,, more can't combine closely between pipe and the outer tube in it, refrigerant is kept straight on more serious, and heat exchange efficiency is lower.

Summary of the invention:

The purpose of this utility model is to overcome above-mentioned deficiency, provide a kind of in pipe be not easy incrustation, efficient internal-rib spiral bar composite heat-exchange pipe that heat exchange efficiency is higher.

The purpose of this utility model is achieved in that a kind of efficient internal-rib spiral bar composite heat-exchange pipe, form by fit inside and outside interior pipe and the outer tube, it is characterized in that: pipe is light pipe in described, and outer tube is high internal-rib spiral reinforcement pipe, and outer sleeve inner wall is provided with high rib spiral bar.

The efficient internal-rib spiral bar of the utility model composite heat-exchange pipe, the helical angle of high rib spiral bar is 20 ± 5 ° on the described outer sleeve inner wall.

Described outer tube is high internal-rib spiral reinforcement pipe, and its inwall is provided with high rib spiral bar.

Compare with existing multiple tube, the utlity model has following advantage:

1, interior pipe is a light pipe, and the inner tube wall face is not easy scaliness, and the unimpeded nothing of interior pipe is stopped up, and has improved heat exchange efficiency;

2, be furnished with high rib spiral bar on the outer sleeve inner wall face, can combine closely between interior pipe and the outer tube, the helical pitch of refrigerant is long, has increased the heat exchange area between refrigerant and the interior pipe, has improved heat exchange efficiency.

Description of drawings:

Fig. 1 is the Facad structure schematic diagram of the efficient internal-rib spiral bar of the utility model composite heat-exchange pipe.

Fig. 2 is the A-A cut-away view of Fig. 1.

Fig. 3 is the outer tube longitudinal section cut-away view of the efficient internal-rib spiral bar of the utility model composite heat-exchange pipe.

Fig. 4 is the B-B cutaway view of Fig. 3.

The specific embodiment:

Referring to Fig. 1～2, the efficient internal-rib spiral bar of the utility model composite heat-exchange pipe is formed by interior pipe 1 and outer tube 2 inside and outside fits.

Pipe 1 is a light pipe in described, and outer tube 2 is high internal-rib spiral reinforcement pipe, and outer tube 2 inwalls are provided with high rib spiral bar 21.The helical angle of high rib spiral bar 21 is 20 ± 5 ° on outer tube 2 internal faces.

Claims

1, a kind of efficient internal-rib spiral bar composite heat-exchange pipe is formed by interior pipe (1) and the inside and outside fit of outer tube (2), it is characterized in that:

Pipe (1) is a light pipe in described,

Described outer tube (2) is high internal-rib spiral reinforcement pipe, and outer tube (2) internal face is provided with high rib spiral bar (21).

2, a kind of efficient internal-rib spiral bar composite heat-exchange pipe according to claim 1, it is characterized in that: the helical angle of high rib spiral bar (21) is 20 ± 5 ° on outer tube (2) inwall.