CN2289198Y - Cutting shaping scaly heat exchanging tubular element - Google Patents

Abstract

The utility model relates to a cutting shaping scaly heat exchanging pipe fitting which has the advantages of simple structure, small volume and high efficiency. The utility model leaves certain margin of wall thickness on the wall of a metal pipe fitting, adopts a cutlery to cut the margin of wall thickness into dense scaly sheet metal construction with one end evaginating outward, and makes use of the metal scale which is one piece with the metal pipe fitting to enlarge fluid contact area in order to achieve the goal of enhancing heat exchanger effectiveness with smaller volume.

Description

Shaping by stock removal flakey heat exchange pipe fitting

The utility model relates to a kind of novel pipe fitting that is used for heat exchange, and it is that machining is passed through on tubular metal section bar surface, and the intensive sheet metal of flakey of formation and tubing one has increased heat exchange area effectively, thereby reached the purpose of efficient heat exchange.

At present, known heat exchanger common structure has: A, casting heat exchange chip; As fin of radiator in the building and high-power electric appliance etc.B, metal tube and sheet metal crimping or welded type; As heat radiation, the condenser of air-conditioner, the heat collector of pot-type boiler etc.C, tubular heat exchanger; As marine diesel oil machine heat exchanger etc.Above-mentioned heat exchanger all has shortcoming, as structure A commonly used; Volume weight is too big, and heat exchange area is less relatively.Common structure B use for a long time sheet metal can occur and contact variation with metal tube, influences heat exchanger effectiveness, and production technology is also complicated, and volume is also huger when big flow is worked.Common structure C shortcoming is that volume is big and be easy to generate mutual seepage.Therefore, designing a kind of heat exchanger simple in structure, that heat exchanger effectiveness is high is pressing for of multiple industry.Cutting forms shape flakey heat exchange pipe fitting and can achieve the goal effectively.

The utility model is achieved in that on the metal pipe material of control moulding and leaves quantitative residual thickness, with sharp cutlery oblique cutting on residual thickness, because the plasticity of metals such as aluminium, copper, the metal that is cut part forms the flakey sheet metal that a slice is outwards routed up, every space-number millimeter cutting once, just can on the wall of metal pipe material, cut out the metal scale of much outwards routing up, these metal scale roots are cut, still be connected as a single entity, so can play good conduction of heat with tubing.When the higher fluid of temperature is arranged in the pipe, the tube wall lower fluid isolation of temperature that it and pipe is outer is opened, but heat can pass to the lower fluid of temperature by tube wall and metal scale, because it is about more than 10 times that the existence of metal scale has increased the heat-delivery surface of pipe fitting, so improved heat exchanger effectiveness greatly, dwindled the volume of heat exchanger.If the metal scale cut Bao Yuechang more, heat exchange surface areas is big more, but consider strength factor, metal scale value can be determined according to factors such as the thickness of pipe fitting, wall thickness, conditions of work, about the about 1mm of general thickness, about highly about 15-30mm, can obtain excellent mechanical intensity and heat exchange characteristics.

Below in conjunction with drawings and Examples to this novel being described further.

Fig. 1 is the schematic diagram that shapes of the present utility model.Among the figure 1, metal tube; 2, cutting cutlery; 3, metal scale.

Fig. 2 is an embodiment of the present utility model: the diesel engine fresh-water cooler.Among the figure 21, shaping by stock removal flakey heat exchange pipe fitting; 22, metal shell; 23, seawer outlet; 24, sea intake; 25, hot water or machine oil import; 26, cold water or machine oil outlet

In Fig. 1, cutting cutlery 2 becomes the cutting of α angle along the tube wall of metal pipe material 1, just can cut out the metal scale 3 that a slice upper end is routed up to the outside of wall, the lower end still is not connected as a single entity with metallic walls because of being subjected to cutting, repeatedly cutting just produces the intensive metal scale of delegation, cut another row after delegation has made again, the space between adjacent two row is the needs of machining, can also play guide functions.If flow is little, can only cut outer tube wall.Flow is big, and the pipe physical dimension is also big, can all cut by inside and outside wall, makes heat exchanger effectiveness higher.The fine copper pipe material of 1 meter long 10cm diameter, surface area is about 6 * 10 ³Cm ², cut the wide scale of 2cm height, 2cm as inside and outside wall after, its surface area can reach 6 * 10 ⁴Cm ², surpassed the tubular heat exchanger that the copper pipe of 100 1 meter long 1cm diameters constitutes, but volume has only about 25% of tubular heat exchanger.If can be used for substituting the tubular heat exchanger cooling main and submachine of combat vessel, be significant.

Fig. 2 is an embodiment, mainly constitute fresh water or oil cooler by shaping by stock removal flake type heat exchange pipe fitting 1 and shell 22, pump is sent into cooler with the fresh water or the machine oil of heat by import 25, fully contact the cooling back by outlet 26 outputs with the metal scale, seawater is sent into by import 24, discharge by outlet 23 after absorbing the heat energy of scale, finish the exchange of heat, diesel engine is cooled off and lubricate.

Claims (1)

1. A kind of flakey heat exchange pipe fitting of shaping by stock removal is made of a metal tube, it is characterized in that: the wall of metal tube is cut the intensive metal scale that an end is routed up by cutlery outside wall.

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