JPH0732388Y2 - Heat exchanger for ships - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a heat exchanger for ships, in which an intercooler, an oil cooler, and a radiator for engine cooling water are housed together in a casing. Regarding compact things.

[Prior art]

In a heat exchanger for ships, an intercooler, an oil cooler, and a radiator for engine cooling water are generally provided separately and independently, and heat is exchanged between each heat exchange medium and seawater or the like. Therefore, each heat exchanger has an occupying space, and the whole size must be increased.

[Means for solving problems]

Therefore, the present invention adopts the following configuration in order to eliminate the above problems.

That is, in the casing 1 in which seawater flows from one side to the other, the charge air core 2 is provided at the upstream position of the flow of the seawater. At the same time, an oil cooler core 3 and an engine cooling water core 4 are provided at the downstream position in the casing 1, and the casing 1 has a box-shaped main body 5 and an open end of the main body 5 can be freely attached and detached. An end cover 6 which is closed to the end cover 6, and the charge air core 2 is attached to the end cover 6, and the oil cooler core 3 and the engine cooling water core are attached to either the end cover 6 or the main body 5. 4 is a heat exchanger for ships equipped with 4.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a partially cutaway front view of the first embodiment of the present invention,
FIG. 2 is an explanatory schematic diagram horizontally crossing FIG. In this embodiment, a casing 1 has a box-shaped main body 5 and an end cover 6 detachably attached to one end opening thereof. In this embodiment, in consideration of the thermal efficiency of each core, the end cover 6 is arranged from the upstream position of the seawater 9 to the charge air core 2, the oil cooler core 3, the engine cooling water core 4.
Are arranged in order. And the core 2 for charge air
As shown in FIG. 4, a pair of upper and lower monaca-shaped metal plates are stacked in opposite directions, and a lean hose 14 and an inner fin 12 are interposed between them.
The peripheral portion is liquid-tightly brazed and fixed, and communication holes are formed at both ends to form an element. Then, those elements are laminated in multiple stages via the spacer 13. Then, the upper end surface of the element located at the uppermost portion is closed, and the boss portion 7 is attached to the element located at the lower end.
Are attached, and they are integrally brazed and fixed. The charge air core 2 and the oil cooler core 3 and engine cooling water core 4 formed in the same manner as described above are not shown in the end cover 6 as shown in FIG.
The nuts 11 are fastened and fixed through the rings. next,
As shown in FIGS. 1 and 4, the casing 1 is fitted on the outer periphery of the casing 1 via packing (not shown), and a bolt 10 is liquid-tightly fastened and fixed between them.

Then, as shown in FIG. 2, the seawater 9 is circulated from the left side to the right side of the inner fin 12 by the pump 8. As a result, the charge air, the oil, and the engine cooling water flowing in the cores 2, 3, 4 can be efficiently cooled, respectively.

Next, FIG. 3 shows a second embodiment of the present invention. This embodiment is different from that of FIG. 1 in that the oil cooler core 3 and the engine cooling water core 4 face each other in the casing 1. It is located. That is, the oil cooler core 3 is attached to the end cover 6, and the engine cooling water core 4 is attached to the main body 5 at the upper position.

[Effect of device]

The heat exchanger for a ship of the present invention has the above-mentioned configuration,
It has the following effects.

In the heat exchanger, a charge air core 2 is provided at an upstream position of the seawater flow in the casing 1, and an oil cooler core 3 and an engine cooling water core 4 are provided at the downstream position thereof. Therefore, the three types of heat exchange media can be cooled at the same time, and at the same time, the whole of them can be made compact to provide the heat exchanger at a low cost. Moreover,
Since the core for cooling the charge air having the highest temperature of the heat exchange medium is provided on the upstream side in the casing 1, the temperature difference between the seawater and the charge air can be made large, and the charge air can be efficiently cooled. . In particular, since the gas flows through the charge air core 2, the heat transfer property on the inner side tends to deteriorate. However, in the present heat exchanger, the temperature difference between the charge air core 2 and the sea water is high, so that the heat transfer property is poor. Can be sufficiently supplemented. Further, in the present heat exchanger, the casing 1 is composed of a box-shaped main body 5 and an end cover 6 that detachably closes the open end of the main body 5, and the end cover 6 is provided with the charge air core 2 Since the oil cooler core 3 and the engine cooling water core 4 are attached to either the end cover 6 or the main body 5, the assembling and maintenance are very good.

That is, it is possible to easily solve the inspection and maintenance and the assemblability which are problems when the three cores are housed in one casing with a simple structure. And there is an effect that a highly practical heat exchanger for ships can be provided in a small space.

[Brief description of drawings]

1 is a partially cutaway front view of the first embodiment of the present invention, FIG. 2 is a schematic sectional view taken along the line II-II of FIG. 1, and FIG. 3 is a partially cutaway view of the second embodiment of the present invention. A front view and FIG. 4 are schematic sectional views taken along the line IV-IV in FIG. 1 ... Casing 2 ... Core for charge air 3 ... Core for oil cooler 4 ... Core for engine cooling water 5 ... Main body, 6 ... End cover 7 ... Boss, 8 ... Pump 9 ... Seawater , 10 …… Bolt 11 …… Nut, 12 …… Inner fin 13 …… Spacer, 14 …… Lean hose

Claims (1)

[Scope of utility model registration request] Claims: 1. A charge air core 2 is provided at an upstream position of the flow of seawater in a casing 1 in which seawater flows from one side to the other inside, and an oil cooler core 3 and an engine cooling are provided at a downstream position thereof. A water core 4 is provided, and the casing 1 includes a box-shaped main body 5 and an end cover 6 that detachably closes an open end of the main body 5, and the end cover 6 is provided with the charge air. A heat exchanger for a ship, in which an oil core 2 is attached, and the oil cooler core 3 and the engine cooling water core 4 are attached to either the end cover 6 or the main body 5.