JPH02213694A - Fin tube type heat exchanger - Google Patents

Abstract

PURPOSE:To divide heat in a performance manner, to obtain performance and to improve an operating efficiency by coupling fins of a row of a gas flow inlet side and fins of a row of a gas flow outlet side at vertical several mm, and forming a slit at a central part. CONSTITUTION:Fin groups 13, 14 are inserted into heat transfer tube groups 11, 12. The groups 13, 14 are integral fins, and a slit 15 is formed almost vertically fully at the center of a row direction. Thermal division for integrating the fins of row direction of the groups 13, 14 of gas flow B inlet and outlet sides obtains its performance by forming the slit 15 at the center. Its operability is improved in assembling of a heat exchanger by integrating. Particularly, an operating speed is improved at the times of inserting fins of a refrigerant tubes of the groups 11, 12 and extending the tube for bringing a heat transfer tube into contact with the fins. Since a gap between the fins of the row direction is not provided, it can eliminate the decrease in the quality due to close contact of the fins.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a fin-tube heat exchanger used in cooling systems such as air conditioners and refrigerators, which transfers heat between a refrigerant and a fluid such as air. be.

Conventional technology In recent years, heat exchangers have been required to be compact and have high performance.
Regarding heat transfer performance, the same heat exchanger is divided into many pipes, and heat exchangers with even higher performance have been developed due to temperature differences between pipes, but improvements are needed in manufacturing. It becomes.

An example of a conventional fin-tube heat exchanger will be described below with reference to the drawings. Figure 4.

FIG. 6 shows a conventional two-row fin-tube heat exchanger. The fin tube type heat exchanger 1 constitutes one row of heat exchangers on the air flow inflow side, and the fin tube type heat exchanger 2 constitutes one heat exchanger row on the air flow outflow side.

The fin tube heat exchangers 1 and 2 constitute separate piping, and some have a gap between them, while others have no gap.

Problems to be Solved by the Invention However, with the above configuration, there are problems in manufacturing.
Not only does it take a lot of man-hours to assemble each one separately, but it is also difficult to ensure that the two fin-tube heat exchangers have a uniform gap in the longitudinal direction, which is necessary for quality, and this poses the problem of significantly slowing down mass production. Was. Therefore, the present invention solves the above-mentioned problems and provides a fin-tube heat exchanger that requires less manufacturing steps and is satisfactory in terms of quality.

Means for Solving the Problems The fin-tube heat exchanger of the present invention includes a plurality of rows of heat exchanger tube groups through which a refrigerant flows, and a group of heat exchanger tubes inserted into the heat exchanger tube group,
It consists of a group of fins through which airflow flows, and the fins in the row on the airflow inflow side and the fins in the row on the airflow outflow side of the fin group are connected several millimeters above and below, and a slit is installed in the center to thermally divide them. They are arranged in parallel so as to intersect with the air inflow direction.

Effect In the above configuration, the fins in the row on the airflow inflow side and the fins in the row on the airflow outflow side are connected several millimeters above and below, and a slit is inserted in the center to divide the heat. In terms of man-hours, the work efficiency is equivalent to that of two rows of identical fins, and there is no need for individual combinations, increasing work efficiency.

Embodiment As an embodiment of the present invention, a two-row integral fin tube heat exchanger is shown in FIGS. 1, 2, and 3.

11 is a group of heat transfer tubes in a row on the inflow side of air flow B through which a refrigerant flows; 12 is a group of heat transfer tubes in a row on the outflow side of air flow B in which a refrigerant flows; 13.14 is a group of heat transfer tubes 11.12 is a group of fins in the column inserted into .

The fin groups 13 and 14 are integral fins, and have slits 16 in the center in the row direction almost at the top and bottom.

Next, the operation of the configuration of this embodiment will be explained.

Although the column direction fins of the fin groups 13 and 14 on the inflow side and outflow side of airflow B are integrated, a slit 1 is placed in the center for heat division.
By adding 5, performance can be ensured.

Moreover, by integrating the parts, workability in assembling the heat exchanger is improved. In particular, the work speed is improved when inserting the fins of the refrigerant tubes of the heat exchanger tube groups 11 and 12 and when expanding the heat exchanger tubes and fins to bring them into close contact. Furthermore, since there is no gap between the fins in the row direction, it is possible to eliminate quality deterioration due to close contact between the row fins. Note that FIG. 3 shows another embodiment of the fin group 1.
By providing a perforation slit 16 in the center of the integrally molded fins 3' and 14', the same effect as in the embodiment described above can be obtained.

Effects of the Invention As described above, the fin tube type heat exchanger of the present invention greatly speeds up the heat exchanger assembly work by integrating two rows of fins, which were previously two separate rows. Furthermore, by providing a slit in the center of the number of rows, performance by heat division can be ensured.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a fin-tube heat exchanger showing one embodiment of the present invention, Fig. 2 is a perspective view of the same fin-tube heat exchanger, and Fig. 3 is a fin-tube heat exchanger showing another embodiment. FIG. 4 is a cross-sectional view of a conventional fin-tube heat exchanger, and FIG. 6 is a perspective view of the same fin-tube heat exchanger. 11.12... Heat exchanger tube group, 13.13', 14
．． 14'...fin group, 15,16...
·slit. Name of agent: Patent attorney Shigetaka Awano and 1 other person 1st
yJ Il, /2 --- I family e, v group /3. /4-
Finn I5-Slit/4 Fig. β Fig. 16- Sewing machine 100 slits/4゛ Fig.

Claims (1)

[Claims] It consists of a plurality of rows of heat exchanger tubes through which refrigerant flows, and a fin group inserted into the heat exchanger tubes through which air flows, and the fins in the row on the airflow inflow side and the fin group on the airflow outflow side of the fin group. A fin-tube heat exchanger characterized by having slits between rows of fin groups.