 Thin and flat flame burner |
| It is a primary object of this invention to provide a burner system for providing a thin flat flame ... |
|
| Low phosphate content dishwashing detergent |
| We claim: 1. A dry powder, low-phosphate machine dishwashing composition which consists essentially ... |
|
| Apparatus for waxing skis |
| OF PREFERRED EMBODIMENT Referring now to the drawings in detail, there is illustrated in FIG. 1 ... |
|
| Plastic, heated water container for tape machines |
| What is claimed is: 1. In a tank for a tape dispensing machine or the like: the tank being adapted ... |
|
| Environmentally degradable soap bar system |
| An environmentally degradable soap bar system, which includes a soap bar having a predetermined ... |
|
| Solar heat collector |
| The present invention provides a solar energy collector in the form of a bristle fin type of ... |
|
| Burner of air adjustment type provided with annular air passage |
| Methyl alcohol can easily be synthesized from various raw materials such as natural gas, petroleum, ... |
|
| Cylinder with two-step movement |
| I claim: 1. In a cylinder with two-step movement, comprising a housing with a first and a second ... |
|
| Dehydrating refrigerant |
| OF EMBODIMENTS As noted above, the invention is usable in all systems having refrigeration or air ... |
|
|
Plate heat exchanger
| Details |
Inventors: Skoog, Malte;
Assignee: Alfa-Laval AB (Tumba, SE)
Primary Examiner: Richter; Sheldon J.
Assistant Examiner:
Attorney, Agent or Firm: Hapgood; Cyrus S.
In a plate heat exchanger in which the flow rates of the two heat exchanging fluids are different, it is possible to obtain an adjustment to differing proportions of the fluid flows, the pressure drops being given. To this end, the heat exchanger is provided with at least two sections of heat exchanging passages, in at least one of said sections the passages for the two respective fluids having essentially different flow resistances. Furthermore, the proportion of the flow resistances of the passages for the respective fluids in one section differs essentially from the corresponding proportion in at least one other section. |
|
DETAILED DESCRIPTION I claim: 1.
A heat exchanger having at least two sections of heat exchanging plates, each section comprising a plurality of said plates arranged adjacent to each other and forming between them sealed passages adapted to receive two heat exchanging fluids flowing therethrough, said passages for the respective fluids in at least one of said sections having essentially different flow resistances, the proportion of the flow resistances of the passages for the respective fluids in one section differing essentially from the corresponding proportion of another section, means connecting the passages for one of said two fluids in a first said section in parallel with the passages for one of said two fluids in a second said section, and means connecting the passages for the other of said two fluids in said first section in parallel with the passages for the other of said two fluids in said second section, whereby the heat exchanger is adapted for parallel flows of the same two fluids through said first and second sections, said passages for the respective fluids in each of two said sections having essentially different flow resistances, the proportion of the flow resistances of the passages for the respective fluids in one section being equal to the inverted value of the corresponding proportion in another section.
Description:
The present invention relates to a heat exchanger of the kind comprising a plurality of heat exchanging plates arranged adjacent to each other and forming between them sealed passages adapted to receive two heat exchanging fluids flowing therethrough.
In cases where the flow rates of the two heat exchanging fluids differ from each other, it is desirable to provide heat exchanging passages which, at a given pressure drop, allow different large flows (i.
e.
, which have different flow resistances).
The fluid having the larger flow rate is then allowed to flow through passages with low flow resistance, while the fluid having the smaller flow rate is allowed to flow through passages having a higher flow resistance
|
|
Heat Accumulators 
