CN201449200U

CN201449200U - Heat exchange tube

Info

Publication number: CN201449200U
Application number: CN2009200594926U
Authority: CN
Inventors: 袁博洪; 唐禄顺; 罗跃斌
Original assignee: Guangzhou United A / C & R Co Ltd
Current assignee: Guangzhou United A / C & R Co Ltd
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2010-05-05
Anticipated expiration: 2019-06-30

Abstract

The utility model discloses a heat exchange tube which is a spiral heat exchange tube and consists of a spiral corrugated section and a line cross section with two smooth ends. The heat exchange tube is a hollow spiral heat exchange tube, wherein the inner wall of the tube takes the shape of a continuous spiral groove, and the outer surface thereof also takes the shape of a spiral groove; and the tube is made of any one material of copper tubes, carbon steel, stainless steel, alloy and the like. In the utility model, the spiral grooves are evenly arranged on the inner wall and the outer wall of the spiral heat exchange tube, thus not only preventing short circuit of fluid and increasing fluid speed, but also forcing the fluid to circulate according to a designated path, increasing the path of the fluid in the heat exchange tube and heat exchange area, as well as improving the efficiency of heat exchange.

Description

A kind of heat exchanger tube

Technical field

The utility model belongs to a kind of heat transmission equipment, is provided with the spiral fluted heat exchanger tube equably on specifically a kind of inside and outside wall.

Background technology

Along with improving constantly of industry technologies such as refrigeration, metallurgy, machinery, boiler manufacturing, the requirement of exchange heat pipe is also in corresponding raising.Traditional heat exchanger tube has the pipe of light pipe, gear piece pipe, straight tube outer wall recessing as heat exchange etc., and the light pipe heat exchange efficiency is low; Though gear piece pipe heat exchange efficiency increases, be 2～2.5 times of light pipe, heat exchange efficiency also is not very high; Can't clear up after the pipe major defect inside pipe wall fouling of straight tube outer wall recessing, cause easily and scrap, or heat exchange efficiency is low, energy consumption increases.

Publication number is the Chinese invention patent application " rhombus thermoexcell " of CN1447089, it is made up of some rhombus pipeline sections, oval pipeline section, circle one oval changeover portion, the two ends cross section of described rhombus pipeline section is intersection 15-90 degree angle between oval and two transverses, reduce gradually to the ovality that the center changes its cross section by the pipeline section two ends, become circle or sub-circular up to the pipeline section center cross-sectional, rhombus pipeline section and oval pipeline section be periodic arrangement successively.The above-mentioned heat exchanger tube that prior art provides though structure is brought in constant renewal in, has certain practicality, but substantially all exist heat transfer coefficient low, shape difficulty, shortcomings such as inside pipe wall fouling, the use field is subject to certain restrictions. in the nonstandard motion of reality, is easy to go wrong.

Summary of the invention

At having the weak point that heat exchanger tube exists in the market now, the utility model aims to provide a kind of fluid short circuit, increase fluid velocity of not only can preventing, but also can force fluid path circulation in accordance with regulations, the distance of fluid in heat exchanger tube increased, increase the exchange heat area, improved the heat exchanger tube of exchange heat efficient.

The technical scheme that its technical problem that solves the utility model adopts is: this heat exchanger tube is the cored screw heat exchanger tube, form by the smooth capable section of helical corrugation section and two ends,, inside pipe wall is continuous spiral flute profile, and outer surface also becomes the helicla flute shape.

The body that the utility model heat exchanger tube is made by arbitrary materials such as copper pipe, carbon steel, stainless steel, alloys.

The utility model compared with prior art, beneficial effect is: not only can prevent the fluid short circuit, increase fluid velocity, but also can force fluid path circulation in accordance with regulations, the distance of fluid in heat exchanger tube increased, increase the exchange heat area, improved exchange heat efficient.

Description of drawings

Fig. 1 is the heat exchange tube structure schematic diagram;

Fig. 2 is the heat exchanger tube profile;

Fig. 3 is the heat exchanger tube vertical view.

The specific embodiment

For the ease of it will be appreciated by those skilled in the art that the utility model is described in detail below in conjunction with accompanying drawing:

As Fig. 1,2, shown in 3, this heat exchanger tube, the smooth circular cross-section section 2 of spiral section 1 and two ends by roll forming is formed, in the described helical corrugation section 1, be equipped with continuous spiral wall on the outer surface, this spiral heat exchange tube is a hollow pipe. when the utility model adopts the spiral heat exchange tube of diameter 9.25cm, when increasing the inside and outside heat transfer sheet area of pipe, make tube fluid produce stronger line and change disturbance, the outer expansion of pipe heat exchange area is suitable with spiral heat exchange tube, nearly wall place heat transferring medium flow velocity increases in the pipe, the augmentation of heat transfer effect is very remarkable in the pipe, belong in the pipe, the outer heat exchange tube with two reinforced surfaces of strengthening simultaneously, utilize the helicla flute of spiral heat exchange tube to form the opening gap, force current to cross heat-exchanging tube bundle from opening gap spiral flow, it is effective to have augmentation of heat transfer, flow resistance is less, less scaling, increase the exchange heat area, improved exchange heat efficient characteristics.

Claims

1. heat exchanger tube, it is characterized in that: described heat exchanger tube is a spiral heat exchange tube.

2. heat exchanger tube according to claim 1, it is characterized in that: described spiral heat exchange tube is made up of helical corrugation section (1) and the smooth tee section sections in two ends (2), this heat exchanger tube is the cored screw heat exchanger tube, and inside pipe wall is continuous spiral flute profile, and outer surface also becomes the helicla flute shape.

3. heat exchanger tube according to claim 2 is characterized in that: the body that described heat exchanger tube is made by arbitrary materials such as copper pipe, carbon steel, stainless steel, alloys.