CN205279834U

CN205279834U - High performance dysmorphism tooth punching spiral extended surface tube

Info

Publication number: CN205279834U
Application number: CN201620028367.9U
Authority: CN
Inventors: 周樟华; 许利华; 王波
Original assignee: Hangzhou Boiler Group Co Ltd
Current assignee: Xizi clean energy equipment manufacturing Co.,Ltd.
Priority date: 2016-01-13
Filing date: 2016-01-13
Publication date: 2016-06-01
Anticipated expiration: 2026-01-13

Abstract

The utility model discloses a high performance dysmorphism tooth punching spiral extended surface tube, be in including parent tube and setting the fin of parent tube surface, be equipped with a plurality of notch on the fin, be equipped with the recess on the trough rim of notch. Has following advantage: the area of contact of fin side with the flue gas has been increased to the reinforcing heat transfer makes indirect heating equipment reach and saves space and cost -effective target, because fin itself has certain thickness, can strengthen the vortex of fin and flue gas to reach the target that improves heat exchange efficiency, enhanced heat transfer effect, process out special -shaped tooth punching through purpose -built cutter, have advantages such as processing technology changes less, machining efficiency height, can satisfy the scale of high performance dysmorphism tooth punching extended surface tube, the applied requirement of industrialization.

Description

A kind of high-performance abnormity tooth punching spiral finned tube

Technical field

The utility model belongs to industrial exhaust heat utilization, energy-conserving and emission-cutting technology field, particularly a kind of high-performance abnormity tooth punching spiral finned tube.

Background technology

Day by day in short supply along with Energy resources, how reasonable energy utilization, the energy consumption reducing unit output value has become each production field particularly required urgent problem solved of high energy consumption department. Show according to relevant information: AND ENERGY RESOURCES CONSUMPTION IN CHINA accounts for the 21.5% of whole world total amount, but only creates the GDP in the whole world about 12.3%. Trace it to its cause, the high energy consumption industry accounting height being in Industry Structure on the one hand; It is that the energy utilization level of Industry Branch is low on the other hand, there is bigger gap compared with international most advanced level. According to statistics, China has the industrial energy consumption close to 50% not to be utilized, but waste heat in a variety of manners directly emits, and the average recovery utilization rate of China's residual heat resources lags behind nearly 20 percentage points of international most advanced level.

Extended surface tube, as the enhanced heat transfer component of a kind of high-efficiency compact, has the status of particularly important in UTILIZATION OF VESIDUAL HEAT IN, all has application in the smoke discharging residual heats such as station boiler, Industrial Boiler, Industrial Stoves. Extended surface tube is by fin sheet is welded on light pipe surface, increases heat interchanging area, hoisting power, thus reaches the object of enhancement of heat transfer. At present, industrial conventional extended surface tube has circular extended surface tube, spiral type extended surface tube, H type extended surface tube etc.

If be fully used in industrial exhaust heat, being improved the heat exchange property of extended surface tube by the improvement of new technology, so just can effectively reduce the heat interchanging area of residual heat using device, thus reach and reduce costs, increase the objects such as utilization rate of waste heat.

Practical novel content

Technical problem to be solved in the utility model is, it is provided that a kind of high-performance abnormity tooth punching spiral finned tube, by changing the shape of fin sheet tooth punching, reaches increase flow disturbance, improves the coefficient of heat transfer, promotes the objects such as unit weight fin sheet heat interchanging area.

For solving the problems of the technologies described above, the high-performance abnormity tooth punching spiral finned tube that the utility model provides, comprises base pipe and is arranged on the fin sheet of described base tube outer surface, and described fin sheet is provided with some notches, and the groove limit of described notch is provided with groove. Set up notch and groove, it is intended that add the contact area of fin sheet side and flue gas, and strengthen the turbulence intensity of flue stream when fin sheet, thus strengthen heat exchange, heat-exchange equipment is reached and saves space and cost-effective target.

As preferably, the shape of described groove is waviness.

As preferably, described groove is provided with multiple breach.

As preferably, described breach be semicircle, trilateral, rectangle, trapezoidal in one.

As preferably, described fin sheet is spiral fin.

After adopting above structure, high-performance of the present utility model abnormity tooth punching spiral finned tube is compared with prior art, have the following advantages: owing to fin sheet itself has certain thickness, abnormity tooth punching spiral finned tube adds the contact area of fin sheet side and flue gas, thus strengthen heat exchange, heat-exchange equipment is reached and saves space and cost-effective target; The notch that abnormity tooth punching helix fin is opened simultaneously can strengthen the flow-disturbing of fin sheet and flue gas, thus reaches the target improving heat exchange efficiency, enhancement of heat transfer effect; By special cutter process abnormity tooth punching, have complete processing change less, working (machining) efficiency advantages of higher, can meet high-performance abnormity tooth punching extended surface tube mass-producing, industrial applications requirement.

Accompanying drawing explanation

Fig. 1 is the utility model front view;

Fig. 2 is the utility model left view (one);

Fig. 3 is the utility model left view (two).

Wherein: 1, base pipe, 2, fin sheet, 3, notch, 4, breach.

Embodiment

Below by embodiment, the utility model will be further described by reference to the accompanying drawings.

As shown in Figure 1, the high-performance abnormity tooth punching spiral finned tube that the present embodiment provides, comprises base pipe 1 and is arranged on the fin sheet 2 of described base pipe 1 outside surface, and described fin sheet 2 is provided with some notches 3, the groove limit of described notch 3 is provided with groove, and described fin sheet 2 is spiral fin.

As shown in Figure 2, the shape of described groove is waviness.

Described groove is provided with multiple breach 4, described breach be semicircle, trilateral, rectangle, trapezoidal in one. As shown in Figure 3, the shape of described breach is trapezoidal.

The high-performance abnormity tooth punching spiral finned tube that the present embodiment provides, utilize special tool will have certain thickness band steel steel band and process the tooth punching of different shapes and angle, the surface that by high frequency Welding, abnormity tooth punching fin sheet is uprightly wound on base pipe again, and adjacent abnormity tooth punching fin pitch is met design requirement. This kind of special-shaped tooth punching adds the heat interchanging area of fin sheet, enhances the flow-disturbing of fin sheet and flue gas, enhances heat exchange effect. Compared with tradition tooth punching fin sheet, abnormity tooth punching fin sheet can increase the heat interchanging area about 5% of fin sheet. Therefore high-performance abnormity tooth punching extended surface tube is adopted can to reach the heat transfer space of saving waste heat equipment, reduce costs, improve the objects such as energy utilization rate.

Claims

1. a high-performance abnormity tooth punching spiral finned tube, comprises base pipe and is arranged on the fin sheet of described base tube outer surface, it is characterised in that: described fin sheet is provided with some notches, and the groove limit of described notch is provided with groove.

2. high-performance according to claim 1 abnormity tooth punching spiral finned tube, it is characterised in that: the shape of described groove is waviness.

3. high-performance according to claim 1 abnormity tooth punching spiral finned tube, it is characterised in that: described groove is provided with multiple breach.

4. high-performance according to claim 3 abnormity tooth punching spiral finned tube, it is characterised in that: described breach be semicircle, trilateral, rectangle, trapezoidal in one.

5. according to claim 1 or 2 or 3 high-performance abnormity tooth punching spiral finned tube, it is characterised in that: described fin sheet is spiral fin.