Shell (e.g. 94) for plate-type apparatus to carry out thermo-dynamic processes based on heat exchange between flowing fluids which comprises spaced heat conductive confining plates (50a, 50b) and fluid conducting passages (56c, 56d, 56e) therebetween. At least one of the confining plates (50a, 50b) is provided with at least one diaphragm (58a, 58b) adjacent to a fluid conducting passage. The diaphragm (58a, 58b) in the confining plates (50a, 50b) ensures, in addition to heat transfer, also interactions of fluid pressures. Thus, positive circulation of fluids, operation of control valves, etc., are rendered possible by structure located within the shells themselves.

Shell for plate-type apparatus to carry out thermo-dynamic processes based on heat-exchange between flowing fluids

The whole set includes a compressor assembly ( 10 ), inlet ( 23 ) and outlet ( 24 ) to and from a harnessing loop, inlet ( 33 ) and outlet ( 34 ) to and from a heating loop, and two heat exchangers ( 20, 30 ), coupled to the compressor assembly and to the inlets and outlets. Linking pipes ( 21, 22, 31, 32 ) between heat exchangers and the compressor assembly, and/or inlets and outlets from and to harnessing and heating loops, are not linking pipes assembled by brazing but are welded stainless steel pipes, notably by orbital TIG welding. The whole set is enclosed in a tighten enclosure ( 40 ) comprising a supporting base ( 41 ) and a bonnet ( 42 ) sealed together.

Compact Water/Water Heat Pump Core, and Heat Pump Comprising Same

Central part of small water cyclic heat pump

L'ensemble comprend un bloc compresseur (10), des prises d'entree (23) et de sortie (24) vers un reseau de captage de chaleur, des prises d'entree (33) et de sortie (34) vers un reseau de restitution de chaleur, et deux echangeurs de chaleur (20, 30), couples au bloc compresseur et aux prises d'entre et de sortie Les liaisons (21, 22, 31, 32) entre les echangeurs de chaleur et le bloc compresseur, et/ou les liaisons (25, 26, 35, 36) entre les echangeurs de chaleur et les prises des reseaux de captage et de restitution de chaleur sont des liaisons non brasees, formees par des tubes en acier inoxydable soudes, notamment par soudage TIG orbital Le tout est enferme dans une enceinte etanche isolante de confinement (40) comprenant une base support (41) et un capot (42) soudes entre eux

Coeur de pompe a chaleur compact de type eau/eau

The invention relates to heat pump circuit elements. It relates to a circuit element comprising two pressed metal sheets which are welded at 14 so that they define cavities containing different components of the circuit such as a four-way cock, a silencer, a pressure reducer, a valve, a dehydrating cartridge, etc. Those elements which must be fixed in a sealed manner are fixed by the welding of a filler material, once the two pressed members have been seam- or spot-welded together. Application to the manufacture of heat pumps

Gerard Uguen

Papers

Fluid circuit element, heat pump comprising this, and method of manufacture thereof