JPH053900Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a heat exchanger that effectively exchanges heat with air passing through each part of a core.

[Conventional technology]

In the core portion of a conventional heat exchanger, the shape and arrangement of fins, tubes, etc. are uniform in each portion when viewed from the front, that is, in the direction of air flow.

[Problem that the invention attempts to solve]

Conventional heat exchangers in which each part of the core is configured uniformly in this way can be used regardless of the air velocity distribution generated by the fan, the structure of the airflow intake, and its position.

However, this does not mean that the entire core is always being used efficiently; if
For example, it is clear that performance can be further improved if the configuration arrangement listed below can be adopted.

(a) The shape and arrangement of some cores are such that they can exhibit high performance at high wind speeds, and these are placed in high wind speed areas.

(b) The shape and arrangement of some of the cores are such that the airflow is constricted and the air resistance is small, and this is
By placing it in a low wind speed area, it increases the wind speed and improves performance.

(c) The core in areas where foreign matter such as sand and dust is likely to enter is arranged or shaped so that it is difficult for foreign matter to enter or become clogged.

The object of the present invention is to provide a heat exchanger that can easily meet such demands.

[Means for solving problems]

In this invention, a horizontally long upper tank, an intermediate tank, and a lower tank are installed in parallel, and a flat tube with a different shape is installed between the upper tank and the intermediate tank, between the intermediate tank and the lower tank, and between the upper and lower sub-tanks. Alternatively, a core unit of a different type having spaced fins is provided with bolts and nuts so that it can be detachably attached to the intermediate tank.

[Effect]

When installing a heat exchanger in a location with uneven flow velocity, for example, install a core unit with narrower fin spacing in locations with high wind speed, and install a core unit with wider fin spacing in locations with lower wind speed.
High heat exchange efficiency can be achieved.

Further, it is also possible to use a core unit in which the shape of the fins is changed depending on the nature of the airflow.

Furthermore, when using this heat exchanger in a different location, remove the intermediate tank mounting bolts and nuts.
By rearranging the core units according to the flow rate at the location where they are used, a highly efficient heat exchanger can be obtained with a simple recombination operation.

〔Example〕

FIG. 1 is an exploded perspective view schematically showing a heat exchanger equipped with a core unit according to a different embodiment of the present invention.

The core part is divided into 6 parts in the left and right direction with respect to the air flow indicated by the arrows, 2 parts in the vertical direction, and 2 parts in the air flow direction.
f, 2a-2f, 3a...3f, 4a...4f
(However, 4a to 4e are not shown in the figure.)

The outer shape and outer dimensions of each core unit are the same and are interchangeable.

Each core unit has upper and lower sub tanks 9 and 10.
Alternatively, a large number of flat tubes and fins having different shapes or intervals are provided between the tubes 11 and 12. That is, two core units 1a, 1b, 1e, 1f, 2a, 1a, 1b, 1e, 1f, 2a,
2b, 2e, 2f, 3a, 3b, 3e, 3f, 4
a, 4b, 4e, 4f are corrugated type, and the two in the center of each upper and lower stage are 1c, 1d, 2
c, 2d, 3c, 3d, 4c, and 4d are of plate fin type.

Among the core units lined up one above the other, the fin pitch of the lower one is slightly smaller than that of the upper one.

5 is an oblong upper tank, 6 is a similar lower tank, and 7 is a side connecting plate.

The manner in which the core units are connected to each other and the core units to the upper and lower tanks are as shown in FIGS. 2 and 3.

A horizontally elongated intermediate tank 8 is disposed between the upper and lower core units, and both ends of the upper and lower tanks 5, 6 and the intermediate tank 8 are respectively fixed to a connecting plate 7 as appropriate.

The upper sub-tank 9 of the upper core unit is connected to the upper tank 5, the lower sub-tank 12 of the lower core unit is connected to the lower tank 6, and the lower sub-tank 10 of the upper core unit and the upper sub-tank 11 of the lower core unit are both connected to the intermediate tank 8. , are connected with bolt nuts 13 and 14.

Therefore, the most suitable core unit can be easily placed in the appropriate place according to the airflow distribution, etc.
The efficiency of the heat exchanger as a whole can be increased.

[Effect of idea]

The present invention has the following effects.

(a) High heat exchange efficiency can be obtained by rearranging the various core units depending on the location and fluid used, that is, by simply recombining the core units.

(b) If a failure occurs in some of the core units, it can be easily repaired by removing the bolts and nuts of the intermediate tank and removing the failed core unit.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view schematically showing a heat exchanger equipped with a core unit of different embodiments according to the present invention;
FIG. 2 is a front view showing a part of an example of the heat exchanger of the present invention, and FIG. 3 is a side view of FIG. 2 viewed from the left. 1a, 1b..., 2a, 2b..., 3a, 3b
..., 4a, 4b... core unit, 5... upper tank, 6... lower tank, 7... connecting plate, 8...
...Intermediate tank, 9-12...Sub tank.

Claims (1)

[Scope of utility model registration request] A horizontally long upper tank, an intermediate tank, and a lower tank are provided in parallel, and between the upper tank and the intermediate tank, between the intermediate tank and the lower tank, and between the upper and lower sub-tanks, there is a flat tube and fins having different shapes or intervals. 1. A heat exchanger characterized in that core units of different types are provided with bolts and nuts so that they can be detachably attached to an intermediate tank.