A kind of internal combustion engine car radiator
Technical field
The utility model relates to a kind of radiator, particularly about a kind of internal combustion engine car radiator.
Background technology
Cooling system is the important component part of diesel locomotive, and its effect is to make locomotive maintain optimum working temperature.Cooling problem on the locomotive is an extremely important problem, and it directly affects power performance, operating efficiency, the reliability of diesel engine and transmission device, and the service life of parts.Along with the direction of locomotive to high-speed high-power develops, the improvement of cooling device seems extremely important, and radiator is again the vitals of cooling system, and its combination property directly affects the cooling capacity of cooling system.The radiator in past is the corrugated tube type structure basically, because will paying for through 320 ℃, burns by the cooling core in the radiator, can change the physical property of copper sheet and copper pipe, also to carry out soldering at last, the physical property of copper pipe is descended, therefore use quality problems such as can occur leaking after a period of time, cause radiator performance to descend, locomotive is broken down.The expand tube formula radiator that also has a kind of copper pipe with pipe rock radiator to make, (2 * 10mm), and water is in the reason that occurs fouling more than 70 ℃, its heat dispersion descends significantly after the copper pipe inwall forms incrustation scale because its used copper pipe cross section is narrow and small.Therefore radiator single-unit structure is transformed, improved its heat dispersion and become a very important problem.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of heat exchange efficiency height, and is stable and reliable for performance, less scaling internal combustion engine car radiator.
For achieving the above object, the utility model is taked following technical scheme: a kind of internal combustion engine car radiator, it is characterized in that: it comprises some vertical radiator single-units that are installed in side by side on the equipment of being cooled, each radiator single-unit comprises a casing that is surrounded by last lower perforated plate and left and right sides backplate, at the two ends up and down of described casing a water cover is set respectively, described two water covers are respectively arranged with one and connect by the mouth of a river of source of heat release, also are provided with the connecting hole of installing with the described equipment that is cooled on the described water cover; In described casing, be horizontally disposed with the multilayer cooling fin, on described on lower perforated plate and the cooling fin, correspondence is provided with some cooling tube installing holes, near each described cooling tube installing hole, be symmetrically arranged with the auxiliary heat dissipation hole of a pair of cattle horn shape, vertically in each described corresponding cooling tube installing hole that is provided with connect a cooling tube by the expanded joint mode.
The edge of described cooling tube installing hole is to the rat of described cooling fin.
The height that the edge of described cooling tube installing hole raises up is 2mm.
The edge in described auxiliary heat dissipation hole is to the one side projection of described cooling fin, and this protruding height is lower than the height of projection at described cooling tube installing hole edge.
Described cooling tube installing hole is checkerboard and neatly distributes, the interlaced setting of cooling tube installing hole between adjacent two rows.
Described cooling tube adopts round copper pipe.
The utility model is owing to take above technical scheme, it has the following advantages: 1, the utility model is provided with the auxiliary heat dissipation hole of cattle horn shape near cooling tube, not only reduced the windage of radiator effectively, and played the effect of abundant flow-disturbing, improved the heat transfer coefficient and the heat exchange efficiency of diesel engine effectively.2, the utility model makes cooling tube fully contact with cooling fin with tube sheet, compared with the prior art the mode of tube sheet, cooling fin and cooling tube employing expanded joint, not only connect more firm, good airproof performance can not cause and leak, and has improved the stability and the reliability of radiator effectively.3, cooling tube of the present utility model adopts round copper pipe rather than flat copper pipe, so the pipeline circulation is good, and area of dissipation is big, is not easy fouling in the pipe, and the performance of whole diesel engine is improved a lot.4, therefore the utility model can make the contact area increasing of cooling fin and cooling tube owing to be provided with projection at the edge of the installing hole of cooling fin, and radiating effect is better; Simultaneously, therefore make it have wind direction guide functions preferably, further strengthened the flow-disturbing effect and improved heat exchange efficiency owing to be provided with projection at the edge in the auxiliary heat dissipation hole of cooling fin.
Description of drawings
Fig. 1 is the utility model radiator single-unit structural representation
Fig. 2 is the schematic top plan view of Fig. 1
Fig. 3 is the utility model cooling fin (and going up lower perforated plate) open-celled structure schematic diagram
Fig. 4 is each group cooling tube installing hole and auxiliary heat dissipation pore structure schematic diagram of the utility model
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As Fig. 1, shown in Figure 2, radiator of the present utility model is made up of some vertical radiator single-unit A that install side by side, the casing 1 of each radiator single-unit A is by last, lower perforated plate 2 and two side guard plates 3 surround, in casing 1, be horizontally disposed with multilayer cooling fin 4 from top to bottom, be spaced apart 2mm (being not limited to this) between the adjacent cooling fin 4, last, on lower perforated plate 2 and the cooling fin 4, vertically be equipped with some cooling tubes 5, on the tube sheet 2 at casing 1 two ends, connect a water cover 7 by screw 6 respectively, be respectively arranged with on two water covers 7 one with the mouth of a river 8 that is connected by source of heat release, the connecting hole 9 that the both sides at each mouth of a river 8 are respectively arranged with and the equipment that is cooled is installed.
As shown in Figure 3, Figure 4, in the foregoing description, the corresponding respectively cooling tube installing hole 10 that is provided with circle on two tube sheets 2 and each cooling fin 4, the one side at each installing hole 10 edge (top or following) all punching press has the high projection of 2mm, this projection has been determined the spacing between each cooling fin 4, can increase the contact area between cooling fin 4 and the cooling tube 5 simultaneously.Be symmetrically arranged with two auxiliary heat dissipation holes 11 that are the ox horn shape near one side of each installing hole 10, the edge in each auxiliary heat dissipation hole 11, the one side (top or following) identical with installing hole 10 projectioies also punching press has a projection, and this protruding height is lower than the projection at installing hole edge.When air passes through auxiliary heat dissipation hole 11, can produce certain guide functions, and then on cooling fin 2, form the different air-flow of direction, make flow-disturbing more abundant.Installing hole 10 of the present utility model is checkerboard and neatly distributes, installing hole 10 between adjacent two rows is interlaced settings, be that installing hole is to be provided with one every one, installing hole 10 four adjacent positions are not provided with installing hole 10, so both can make the density of installing hole 10 can be not excessive, can make full use of heat-dissipating space again.
The utility model is not the welding manner that adopts when cooling fin 4 is connected with cooling tube 5, but adopts the expanded joint mode.Such as, cooling tube 5 in the present embodiment adopts the round copper pipe of φ 10 * 0.75mm, at first cooling tube 5 is plugged in tube sheet 2 and the cooling fin 4 corresponding installing holes 10 that are provided with, be that pack into the cooling tube 5 of φ 8.5mm of the steel ball of φ 8.732 has an end of technique head then with diameter, one one of pipe is put into, utilize hydraulic expanding tube machine and quick chuck then, aiming at cooling tube 5 has an end of steel ball to suppress, steel ball is under the high pressure effect, do not have an end of technique head to extrude from cooling tube 5, can finish the expanded joint process.The cooling tube 5 of finishing expanded joint fully contacts with upper and lower tube sheet 2 and each cooling fin 4, can bear the pressure of 10kg and does not leak, and has guaranteed the stability and the reliability of radiator performance.
When the utility model uses, be installed in each radiator single-unit A of locomotive radiator on the equipment of being cooled side by side, flow to the thermal source medium that needs cooling from the mouth of a river 8 of the water cover 7 of each radiator single-unit A bottom, from exposing the front blowing cold air of cooling fin 4 and cooling tube 5, the thermal source medium through cooling tube 5 cooling and cooling fin 4 heat radiations after, from the mouth of a river 8 outflows of the water cover 7 at each radiator single-unit A top, get back to the thermal source that is cooled, so move in circles, reach the purpose that liquid is cooled.