Evaporator system

Abstract

The invention relates to an evaporator system (10) having at least two evaporators actuated by means of a condenser with coolant which is delivered via an injection position (32). Said evaporators have differing refrigerating capacities and are arranged one behind the other such that they are connected in series. The evaporator having a lower refrigerating capacity (19) is constructed in a plate-like manner, whereas the evaporator having a higher refrigerating capacity (11) is provided with a conduit (14) for guiding the coolant and is connected in series before the evaporator having a lower refrigerating capacity (19). The plate-like evaporator having a lower refrigerating capacity (19) has a section (26) which is provided with the injection position (32) for the coolant and which is at least thermally decoupled to the greatest possible extent from the rest of the plate surface (20) of the evaporator (19).

Description

technical field [0001] The invention relates to an evaporator device with at least two evaporators of different refrigerating capacity installed in series one behind the other and supplied with refrigerant by a condenser through an injection point, wherein the evaporator with the lower refrigerating capacity is made as a plate shape, while the evaporator with higher cooling capacity is equipped with a pipe for guiding the refrigerant, and the evaporator with lower cooling capacity is connected in series in front. Background technique [0002] For combined refrigeration and freezing, so-called box evaporators are used in the prior art to cool the freezer compartment. Such evaporators have a carrier plate bent into a right-angled tube, which is wound with refrigerant-conducting lines on its mounting surface. In order to simplify the processing and take into account heat conduction and cost reasons, the carrier plate and the pipeline are made of aluminum, a tube insert is prov...

AI Technical Summary

Problems solved by technology

Such an upstream connection of the evaporator plate used as a cold room evaporator with so-called tube evaporators used in the freezer, in addition to the large number of parts, also results in the necessity of combining different materials within cost and production conditions. Liquid-tight and gas-tight interconnection, whereby special welding methods must be used, such as a special form of resistance welding, for which appropriate welding devices are rather expensive

In addition, the installation costs of such evaporator installations are relatively high due to the large number of individually joined joints, wherein high demands are also placed on the quality and precision of the workman's workmanship in order to ensure a liquid-tight and gas-tight production of the joints

Images