DE7930973U1 - Heat exchangers for highly sensitive switchgear - Google Patents

Description

The innovation concerns a heat exchanger for highly sensitive switchgear, which is very small and high performance.

It is known that switch cabinets, control panels, control cabinets, Over time, distributors and control rooms have to accommodate more and more switching devices and those radiated by the devices Heat reached inadmissible values. One is therefore dependent on additional cooling of the devices, for most of them only a very modest space is still available.

The innovation is based on the task of having a heat exchanger at all times, even with very modest space conditions to be attached that has a sufficiently large power.

According to the innovation, the object is achieved by straight pipes arranged closely next to one another, the ends of which are in one each

All inOndlidien AmfUhrunsen are without "dirfltlUhe B & t} t! G" ng oOJre

. J- Place of fulfillment and legal status for both parts of Nuremberg.

PATENT Attorney DIPL.-INQ. H. (ΐΑ ^ έRMVJNhIj 8§0q «ftCl, R | NBERQ, SCHLEQELSTRASSb 25

1 I · · <t f

to: concerning: date: β ΙΙ:

• DPA. 10/31/79 2

The collecting space and the rolled-in ribs or Flaps formed by machining are provided on their surface, one broad side and the two Sheet metal covering the long sides of the tube bundle, the ends of which hold the collecting spaces, two types of fans each, which are arranged at one end of the sheet and one of which the air of the equipment room along the outside of the tubes while the other type of fresh air moves in the opposite direction through the tubes sucked in and discharged into the open air.

With it passers-by through the escaping warm air it is recommended that the fan assembly be placed at the lower end of the heat exchanger.

The drawing shows a heat exchanger according to the innovation, for example, and shows:

Fig. 1 shows the heat exchanger according to the innovation in vertical longitudinal section and

Fig. 2 shows the same heat exchanger from the inside: seen.

There are two rows of straight tubes 1 arranged close to one another, the low ribs 2 of which are a continuous one Form spiral created by cold rolling. The ends of the tubes are firmly crimped in angled sheets 3, 4. A cap 5 forms a collecting space 6 on which

PATENT Attorney DIPL.-ING. H. JM ^ 'M.! (JMANN. 8ί> O (J-NO R-N BERG, SCHLEGELSTRASSE

• ni concerning: Ot Ium: Since ·:

DPA. 10/31/79 3

connect four fans 7, which suck in fresh air through the pipes 1 and on the floor 6 of the room let escape outside. On the angled plate 3 are at right angles to the fans 7, three more fans 8 arranged, which suck in the air heated by the switching devices from below and on the outside of the Guide the pipes back into the equipment compartment 10 along the upper end 9 of the pipes. Including all of the aforesaid items the collecting spaces 4 and 6 are surrounded on the outside with a sheet metal 11, which the upper opening the row of tubes and the fans 7 leaves free, so that the parts mentioned are all in the trough-shaped angled sheet metal 11 can be inserted and fastened in it by screws can.

Protection claims;

Claims (2)

PATENTANWALTDIPL.-ING.H.VlA-rVfMfeR • * μ'Λνν · 8,500 * NUREMBERG, date: SCHLEGELSTRASSE25 *. ι * «Τ., ι · · • -. * 31.10. To: pertaining to: Page: DPA.794 claims for protection 1. Heat exchangers for highly sensitive switchgear, marked through straight pipes arranged close to one another , (1) / the ends of which each open into a collecting space (4,6) and the formed with rolled-in ribs or by machining Flaps (2) are provided on their surface, one that covers one broad side and the two long sides of the tubes Bli? Ch (11), the ends of which hold the collecting spaces (4,6), each ZT ei types of fans that are at one end of the sheet and of which one type (8) the air of the equipment room (10) along the outer sides of the tubes lets flow, while the other type (7) fresh air in opposite Direction sucked in through the pipes and expelled into the open. 2. Heat exchanger according to claim 1, characterized in that t the fans at the lower end of the heat exchanger are seen.