CN205066540U

CN205066540U - High -efficient heat exchange tube of dipteron piece

Info

Publication number: CN205066540U
Application number: CN201520809536.8U
Authority: CN
Inventors: 侯鑫宇; 张树立; 王缵州
Original assignee: Sichuan Wuhuan Petrochemical Equipment Co Ltd
Current assignee: Sichuan Wuhuan Petrochemical Equipment Co Ltd
Priority date: 2015-10-20
Filing date: 2015-10-20
Publication date: 2016-03-02
Anticipated expiration: 2025-10-20

Abstract

The utility model discloses a high -efficient heat exchange tube of dipteron piece, including the parent tube, the innovation part lies in scribbling on the parent tube inner wall and is covered with polytetrafluoroethylene coating, and has set up the spiral inner fin, and the parent tube outside has set up spiral side -finned, has offered 4 circular pore on the spiral side -finned, wherein, spiral side -finned's pitch is less than the pitch of spiral inner fin, and the wing height of spiral inner fin is high by 14 no longer than spiral side -finned wing. The utility model discloses set up the spiral inner fin in the parent tube, can improve intraductal fluid turbulent flow degree, reduce the formation probability of incrustation scale, be provided with spiral side -finned at the outside of tubes and on the fin, simultaneously, be provided with circular pore, can improve outside of tubes fluid turbulent flow degree greatly, and then improve the fin formula and trade heat pipe heat exchange efficiency, reach the purpose that reduces heat exchange tube radical, reduction equipment cost.

Description

A kind of twin fin efficient heat-exchanging pipe

Technical field

The utility model relates to heat exchanger tube, particularly relates to rib heat exchanging pipe, is specially a kind of twin fin efficient heat-exchanging pipe.

Background technology

Rib heat exchanging pipe is to improve heat exchange efficiency, on the surface of heat exchanger tube by increasing fin, increases the external surface area of heat exchanger tube, thus reaches the so a kind of heat exchanger tube of object improving heat exchange efficiency.Fin is the key factor strengthening heat exchanger tube heat exchange efficiency, and no matter existing heat exchanger tube is that wound form fin heat exchange pipe or inserted fin heat exchange pipe heat exchanger effectiveness are lower, and tubular body easily forms incrustation scale, affects heat transference efficiency.Therefore, with under operating mode, for reaching higher heat exchanger effectiveness, just needing to increase extra heat exchanger tube radical, virtually adding cost.

Utility model content

The utility model is based on above-mentioned background, and object is that exploitation one can increase heat exchanger heat exchange efficiency, reduce heat exchanger tube radical, the rib heat exchanging pipe reduced costs.

The utility model is achieved by the following technical solution: a kind of twin fin efficient heat-exchanging pipe, comprise base tube, base tube inwall is coated with polytetrafluorethylecoatings coatings, and be provided with spiral inner fin, base tube outer setting has the outer fin of spiral, and the outer fin of spiral offers circular opening.

Further, the pitch of the outer fin of spiral is less than the pitch of spiral inner fin.

Further, the wing of spiral inner fin high be no more than the outer fin wing of spiral high 1/4.

Further, pore quantity is 3 ~ 6, runs through being opened on outer fin in equal intervals angle.

The utility model arranges spiral inner fin in base tube, can improve tube fluid turbulence level, reduces the formation probability of incrustation scale; Be outside equipped with the outer fin of spiral on fin at pipe, meanwhile, be provided with circular opening, can greatly improve extratubal fluid turbulence level, and then improve rib heat exchanging pipe heat exchange efficiency, reach and reduce heat exchanger tube radical, reduce the object of equipment cost.

Accompanying drawing explanation

Fig. 1 is the utility model sectional structure schematic diagram.

Detailed description of the invention

Below in conjunction with the drawings and the specific embodiments, the present invention will be further described.

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

A kind of twin fin efficient heat-exchanging pipe, comprises base tube 1, base tube 1 inwall is coated with polytetrafluorethylecoatings coatings, and is installed with spiral inner fin 2, and base tube 1 is outside arranges the outer fin 3 of spiral by winding or mosaic mode, and the outer fin 3 of spiral offers hole 4.

In the present embodiment, based on the largest optimization of heat exchange efficiency, the pitch of the outer fin 3 of spiral is less than the pitch of spiral inner fin 2, and the wing of spiral inner fin 2 high be no more than outer fin 3 wing of spiral high 1/4.

In the present embodiment, hole 4 is circular, and quantity is 4, and certainly, based on the difference of outer fin material, hole 4 can be other shapes such as regular polygon, plays action of turbulent flow as long as run through to be opened on outer fin 3 in equal intervals angle.

The utility model by clamping spiral inner fin 2 in base tube 1, the mode be wound around outside base tube 1 or inlay the outer fin 3 of spiral is to improve heat exchange efficiency, pipe is interior, the turbulent flow of extratubal fluid to utilize structural characteristic to improve, for reducing fluid resistance as far as possible, inside and outside fin is all set to spirality, and the outer fin of spiral is also provided with circular opening 4.

Above is embodiment description is to explanation of the present utility model, not to restriction of the present utility model, the utility model limited range is see claim, and when without prejudice to the utility model basic conception, the utility model can do the amendment of other form.

Claims

1. a twin fin efficient heat-exchanging pipe, comprises base tube (1), it is characterized in that, base tube (1) inwall is coated with polytetrafluorethylecoatings coatings, and being provided with spiral inner fin (2), base tube (1) outer setting has the outer fin (3) of spiral, and the outer fin (3) of spiral offers hole (4).

2. a kind of twin fin efficient heat-exchanging pipe according to claim 1, is characterized in that, the pitch of the outer fin (3) of spiral is less than the pitch of spiral inner fin (2).

3. a kind of twin fin efficient heat-exchanging pipe according to claim 1, is characterized in that, the wing of spiral inner fin (2) is high be no more than outer fin (3) wing of spiral high 1/4.

4. a kind of twin fin efficient heat-exchanging pipe according to claim 1, is characterized in that, hole (4) quantity is 3 ~ 6, runs through being opened on outer fin (3) in equal intervals angle.

5. a kind of twin fin efficient heat-exchanging pipe according to claim 4, the quantity of hole (4) is 4.