SU1231368A1 - Heat exchanger of air cooling - Google Patents

Description

The invention relates to heat exchange apparatus and can be used in the energy industry.

The purpose of the invention is to increase the economy and reliability of the tech-exchanger by ensuring a smooth increase in the flow rate of the pumped air.

FIG. 1 schematically shows the proposed heat exchanger; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. 2; in fig. 4 - the position of the louvered screens when the semi-frames are inclined; in fig. 5 - the position of the louvered screens with a vertical semi-frames.

The air-cooled heat exchanger includes a housing 1 with a bundle of heat exchange pipes 2, a fan 3, a shield 4, provided on the outside with a rotation limiter in the form of a hingedly mounted semi-frame 5, and a latch 6 of position.

The louvre screens 4 are made of a flexible and lightweight durable material, for example, synthetic-based fabrics (kapron, lavsan, etc.) reinforced with aluminum or tin-reinforced foil. Screens 4 are located above the tubes to form an acute angle.

and their ends can be twisted into a flat or spatial spiral

The frame 5 may be a fabric or wire mesh reinforced with a straight or broken rod to provide the desired stiffness.

The heat exchanger operates as follows.

The fan 3 pumps cooling air between the pipes 2 and cools the product passing inside the pipes. At the exit, the air lifts the screens 4 until it stops at half-frame 5, the installation angle of which over the heat-exchange surface of the pipes 2 is fixed by engaging the latch 6. the entire surface of the apparatus.

Since the material used to make the screens is reflective, secondary heat radiation from the screen onto the shielded surface is eliminated. The presence of spirals stretching upwardly through the air flow ensures that shadows are created over the entire surface of the apparatus and excludes heat gain from solar radiation.

FIG. 3

Fi.Ts

Editor A. Ogar

Compiled by V. Kosenko

Tehred I.Popovich Proofreader A. Zimokosov

Order 2553/45 Circulation 589 Subscription

VNIIPI USSR State Committee

for inventions and discoveries, 13035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

FIG. five

Claims (3)

1. AIR COOLING HEAT EXCHANGER, comprising a housing with a bundle of heat exchanger tubes, a fan and louvre screens, characterized in that, in order to increase efficiency and reliability, the louvre screens are made of flexible material and are equipped with a turn stop having a position lock on the outside. 2. Heat exchanger pop. 1, characterized in that the rotation limiter is made in the form of a pivotally mounted rigid frame. 3. The heat exchanger according to claim 1, characterized in that the ends of the screens are twisted into a flat or spatial spiral.