HEAT EXCHANGER

• US 3,782,454 A
• Filed: 02/24/1972
• Issued: 01/01/1974
• Est. Priority Date: 02/24/1972
• Status: Expired due to Term

• Current Assignee: Edward D. Smith, Raymond S. Slaasted
• Original Assignee: Edward D. Smith, Raymond S. Slaasted
• Inventors: Slaasted, Raymond S., Smith, Edward D.
• Primary Examiner(s): Sukalo, Charles
• Application Number:
  US05/229,062
• Time in Patent Office: 677 Days
• Field of Search: 165/144,145,176
• US Class Current: 165/144
• CPC Class Codes: F28F 9/0202 Header boxes having their inner space divided by partitions
• CPC Class Codes: F28F 9/0246 Arrangements for connecting header boxes with flow lines
• CPC Class Codes: F28F 9/026 with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
• CPC Class Codes: F28F 9/26 Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators connecting different sections in water heaters F24H9/14 , connecting headers with inlet or outlet fittings F28F9/0246
• CPC Class Codes: Y10S 165/481 Partitions in manifold define serial flow pattern for conduits/conduit groups

Abstract

A heat exchanger including a header plate and a plurality of tubes having ends extending through the plate with an inlet tank mounted on the plate enclosing a number of the tube ends with a liquid pipe to the inlet tank for supplying liquid thereto and thereby distributing liquid by way of the inlet tank to the tubes enclosed by the inlet tank. There are also provided additional flow tank means mounted on the plate enclosing the remaining tube ends for flow of liquid through the tubes. The result of this construction is that the liquid is distributed evenly to the tubes whose ends are enclosed by the inlet tank so that flow in parallel paths is substantially uniform through these enclosed tubes.

Claims

1. A heat exchanger, comprising:

a header plate;

fluid conveying tubes having ends extending through said plate;

an inlet flow tank of flattened cross sectional contour mounted on said plate enclosing at least one but less than all of said tube ends;

a liquid inlet pipe to said inlet tank adjacent to said tube ends and at an angle of less than 180* at the inlet tank to the central axis of said tube ends for supplying liquid to said inlet tank and distributing the liquid by way of said inlet tank to said tubes enclosed by said inlet tank, said contour and said angle inducing turbulence in said liquid into the inlet flow tank and thus even distribution of said liquid from said tank to said tube ends; and

additional flow tanks mounted on said plate enclosing the remaining tube ends for flow of liquid through said tubes.

2. The heat exchanger of claim 1 wherein there are provided a plurality of flow tanks mounted on said plate and spaced from each other, each tank enclosing a pair of said tube ends.

3. The heat exchanger of claim 1 wherein said inlet tank encloses two of said tube ends and said liquid flows in two parallel paths through said tubes.

4. The heat exchanger of claim 1 wherein said inlet tank encloses three of said tube ends and the tubes are arranged in three sets for parallel liquid flow therethrough.

5. The heat exchanger of claim 1 wherein there are provided a plurality of said flow tanks on said plate spaced from each other each enclosing a pair of said tube ends and there is provided a conduit arranged at right angles to said tubes whose ends are enclosed by said inlet tank communicating with said inlet tank for supplying liquid to said inlet tank and thereby the tubes communicating therewith.

6. The heat exchanger of claim 5 wherein said conduit communicates with said inlet tank at an intermediate point between said tube ends enclosed by said inlet tank.

7. The heat exchanger of claim 1 wherein said angle is substantially 90* to said axis.

8. The heat exchanger of claim 1 Wherein said angle is substantially 135* to said axis.

9. The heat exchanger of claim 1 wherein said inlet tank is provided with an inlet fitting of flattened oval cross section at the top thereof and substantially parallel thereto receiving the liquid from said pipe and having an outlet communicating with said tank.

10. The heat exchanger of claim 9 wherein said outlet is positioned substantially centrally between the ends of said inlet tank.