CN201106998Y

CN201106998Y - Heat radiation core body for cooler in diesel engine

Info

Publication number: CN201106998Y
Application number: CNU2007200646156U
Authority: CN
Inventors: 崔剑林
Original assignee: ZHUZHOU TONGDA RAILWAY ELECTRICAL MACHINE FACTORY
Current assignee: Zhuzhou Tongda Railway Electrical Machine Co., Ltd.
Priority date: 2007-09-29
Filing date: 2007-09-29
Publication date: 2008-08-27
Anticipated expiration: 2017-09-29

Abstract

The utility model relates to a diesel engine used intercooler cooling core body, which is composed of cooling fins (5) and a round pipe (9) used for connecting the cooling fins in series. The diesel engine used intercooler cooling core body is characterized in that the cooling fins are of combination solids which have two opposite surfaces, and a plurality of round-hole flanging bosses (2) and a plurality of flanging type triangular vanes (4) as well as triangular holes (5) are arranged on the surfaces. Round pipes (9) are arranged on the cooling fins in series to form the cooling core body, when the cooling fin groups of the cooling core body are connected in series through the round pipes, the direction of the round-hole bosses on each cooling fin is identical; the length of each pipe body is larger than the total length of the cooling fin groups. Under the same pump power and the same thermal load, the area of a vortex generator type reinforced heat exchange device is only 60 percent of a staggered band type finned heat exchange device; under the same pump power, the heat exchange amount of the vortex generator type reinforced heat exchange device is improved by 25 percent compared with the staggered band type finned heat exchange device.

Description

The heat radiation core body that a kind of diesel engine charge air cooler is used

Technical field

The utility model relates to the heat radiation core body that a kind of suitable high-power diesel engine charge air cooler is used, and belongs to charge air cooler heat dissipation technology class.

Background technology

China produced beeliner since 1958, had entered since the eighties, and the power of diesel locomotive develops into unit 3600kW by initial unit 1325kW; Maximum operational speed also develops into current nearly 200km/h by originally 100km/h.In contrast to this, the development of its use for diesel engine charge air cooler is backward relatively.

In fact, the temperature of engine charge is low more, and airborne oxygen content is just high more, and the density of air just strengthens thereupon, and the burning in combustion process is renderd a service just good more.At present, in order to improve cylinder air supply and supply gas pressure, diesel engine of diesel locomotive generally adopts air intercooler (being charge air cooler), pressurized air is cooled off, to reduce air themperature, improve atmospheric density, thereby improve diesel engine power and reduce its thermic load.

Evidence, 10 ℃ of the every reductions of the temperature of pressurized air, the power of diesel engine can improve 2-3%; If the power of diesel engine is constant, 10 ℃ of the every reductions of the temperature of pressurized air can make fuel consumption reduce by 1.5%; And can make 2-3 ℃ of maximum combustion temperature and the average operating temperature decline of circulation.

Therefore, the cooling capacity that improves charge air cooler becomes the developing direction of research and development charge air cooler, adopt what kind of manufacturing process and manufacture method that the work quality performance of charge air cooler is greatly improved, become charge air cooler production producer's the big problem that must study; And fin (and heat radiation core body) is as the kernel component of charge air cooler, how to make and become one of difficult point of this problem.

Before the twentieth century, China mainly contains two kinds at the Dongfeng series internal combustion locomotive of usefulness with the structure of charge air cooler, and a kind of is pipe sheet type structure, and a kind of is that plate sticks up the formula structure.Fin in the pipe sheet type structure only is convenient to the circular hole of poling on surperficial cloth, be restricted on aspect technologies such as poling, slice, thin piece location, sheet pipe be fixing; In addition, the cavity that is formed by the section of jurisdiction is divided into several loculuses by slice, thin piece, and is penetrating bad between each loculus, thereby thermal heat transfer capability is limited.Plate sticks up the problem of formula structure because of aspects such as erosion resistant, reliability, maintenances, only is applicable to air-air cooling, and is not suitable for water-air cooling, thereby seldom adopt on high-power diesel engine.

The utility model content

The purpose of this utility model is: provide a kind of suitable high-power diesel engine with the charge air cooler core body that dispels the heat.

This use for diesel engine charge air cooler heat radiation core body, form by fin 5 with the pipe 9 that the fin tandem arrangement is formed one, it is characterized in that: fin is the assembly with two apparent surfaces, and the surface is provided with a plurality of circular hole flange boss 2 and a plurality of flange shape triangle fin 4 and triangular apertures 5.

Circularhole diameter size on the described heat radiation chip is identical, and the height of the boss 2 on the plate face is identical, and less than the radius of circular hole; Simultaneously these boss 2 fin surface towards being consistent.

Described triangle fin 4 and triangular apertures 5 are arranged on the plate body surface in a plurality of circular hole boss gap; Wherein the height of fin should exceed with the height of boss, and fin and boss are on same surface and towards consistent.

Described pipe 9 tandem arrangements are formed the heat radiation core body on fin, the direction unanimity of circular hole boss on each fin when the groups of fins of this heat radiation core body is connected in series with pipe; Body length must be greater than the total length of groups of fins.

According to this use for diesel engine charge air cooler heat radiation core body that above technical scheme proposes, the cavity that forms by the groups of fins that adopts the surface to be furnished with the good heat radiating structure is the passage of thermal energy transfer.Simultaneously, used its favorable sealing property of pipe; The used pipe of this heat radiation core body be fixing, to support the groups of fins member be again the pipeline of carrying cooling fluid.Be interconnected by triangular apertures between several loculuses that this heat radiation core body is divided into by fin, a plurality of flange triangle fins on the fin (fin to) can make hot fluid (air-flow etc.) produce vortex, make air-flow far away and the nearly strong blending of wall place air-flow, improve thermal heat transfer capability, like this, in fact formed a whirlpool generator strengthening and heat transferring device.Therefore have good performance of heat dissipation, and this can be very useful undoubtedly to the radiating effect that improves the high-power diesel engine charge air cooler.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 adopts the structural representation of fin for the utility model.

Among the figure

1. fin 2. boss 3. circular holes 4. triangle fins 5. are tri-angle-holed

6. front surface 7. rear surfaces 8. heat-conducting plates, 9. pipes 10. cavitys

11. pore 12. cooling fluids output cylinder model 13. heat exchange cylinder models 14. cooling fluids input cylinder model 15. heat radiation core bodys

The specific embodiment

Below in conjunction with accompanying drawing enforcement of the present utility model is further specified.

As depicted in figs. 1 and 2, the fin 1 that the utility model is used is formed by the Heat Conduction Material 8 that certain thickness (thin plate commonly used) is arranged, and 7 two outer surfaces in front surface 6 and rear surface are arranged, be furnished with several circular holes 3 and boss 2 on the surface, be furnished with a plurality of tri-angle-holed 5 and triangle fin 4 simultaneously; Described heat radiation core body 15 is whirlpool generator strengthening and heat transferring devices, and this device is with several pore 11 certain pipes 9 multi-disc fin 1 to be concatenated into one, and the spacing that forms cavity 10 between sheet is limited by the protruding attitude 2 of fin; The work efficiency of this device and enforcement thereof are by heat exchange cylinder model 13 and cooling fluid is exported cylinder model 12 and cooling fluid input cylinder model 14 is set forth.

As shown in Figure 1, the core body 15 that will dispel the heat (being the section of jurisdiction assembly) separates into three cylinder chambeies: an end of wearing the sheet pipe is a cooling fluid input cylinder 14, and the other end is a cooling fluid output cylinder 12, and middle groups of fins is a heat exchange cylinder 13; All seal between cooling fluid input cylinder 14 and the heat exchange cylinder 13 and between cooling fluid output cylinder 12 and the heat exchange cylinder 13; Cooling fluid input cylinder 14 is exported between the cylinder 12 with cooling fluid and is communicated with by pipe 9.When heat exchange cylinder 13 is placed on the Diesel engine, and cooling fluid circulate in pipe 9, thereby heat is taken away, realize making the intake air temperature of engine to reduce the density of the induced air increase by cooling fluid output cylinder 12 and cooling fluid input cylinder 14.Owing to be interconnected by triangular apertures 5 between several cavitys 10 that the utility model is divided into by fin 1, the resistance force diminishes that hot fluid (air-flow etc.) is transmitted; Moreover a plurality of flange triangle fins 4 on the fin 1 (fin to) can make hot fluid (air-flow etc.) produce vortex, make air-flow far away and the nearly strong blending of wall place air-flow, improve thermal heat transfer capability, like this, in fact just formed a whirlpool generator formula strengthening and heat transferring device.In conjunction with of the practice of development diesel engine of diesel locomotive in our factory, show with charge air cooler: under same pump power, identical thermic load condition, this whirlpool generator formula enhanced heat exchange element area only be the stagger arrangement band-like plate stick up the formula heat exchange element 60%; Under same pump power spare, the heat exchange amount of this whirlpool generator formula enhanced heat exchange element improves 25% than mating plate pipe type heat exchange element.

Be cold from combustion air the utility model to be illustrated above, but the utility model is not limited thereto, the protection domain that all improvement of doing based on the utility model or change all belong to the utility model claim.Simultaneously, it will also be appreciated that given accompanying drawing is only used for task of explanation rather than is used for limiting protection domain of the present utility model.

Claims

1, a kind of use for diesel engine charge air cooler heat radiation core body, form by fin (5) with the pipe (9) that the fin tandem arrangement is formed one, it is characterized in that: fin is the assembly with two apparent surfaces, and the surface is provided with a plurality of circular hole flange boss (2), a plurality of flange shape triangle fins (4) and triangular apertures (5).

2, a kind of use for diesel engine charge air cooler heat radiation core body as claimed in claim, it is characterized in that: the Circularhole diameter size on the described heat radiation chip is identical, and the height of the boss on the plate face (2) is identical, and less than the radius of circular hole; Simultaneously these boss (2) in the distribution of fin surface towards being consistent.

3, a kind of use for diesel engine charge air cooler heat radiation core body as claimed in claim, it is characterized in that: described triangle fin (4) and triangular apertures (5) are arranged on the plate body surface in a plurality of circular hole boss gap; Wherein the height of fin should exceed with the height of boss, and fin and boss are on same surface and towards consistent.

4, a kind of use for diesel engine charge air cooler heat radiation core body as claimed in claim, it is characterized in that: described pipe (9) tandem arrangement is on fin, form the heat radiation core body, the direction unanimity of circular hole boss on each fin when the groups of fins of this heat radiation core body is connected in series with pipe; Body length must be greater than the total length of groups of fins.