FR2516222A1 - AIR-WATER MONOBLOCK HEAT PUMP - Google Patents

Abstract

THE HEAT PUMP CONSISTS OF AN EVAPORATOR ASSEMBLY 10 WITH A MOTOR-FAN UNIT AND A COIL EVAPORATOR 12, A COMPRESSOR ASSEMBLY 20 WITH A COMPRESSOR 22 AND BOXES 23, 24 FOR SUPPLY AND CONTROL, AS WELL AS ' A CONDENSER ASSEMBLY 30 WITH A COIL 32. THIS COIL IS HOUSED IN A CLOSED BOX 31 CONSTITUTING A BASE FOR THE COMPRESSOR ASSEMBLY 20 AND THE EVAPORATOR ASSEMBLY 10 OF THE HEAT PUMP, THE BOX FILLED WITH A THERMALLY INSULATING MATERIAL 33 AND BEING EXPOSED TO AMBIENT AIR THROUGH ITS SIDE SURFACE ONLY 43.

Description

16222

One-piece air-water heat pump.

  The present invention relates to a pump

  air-water compression monobloc heat.

  As is known, an air-water compression heat pump has a heat transfer fluid circuit intended to draw heat from the ambient air and to transfer it to a water circuit directly or indirectly ensuring a heating function; the air set in motion by a fan transfers its heat to the heat transfer fluid circulating in an exchanger called the evaporator and the fluid returns this heat to the water put in

  circulation in a so-called general condenser-

  consisting of a coaxial tube coil The cir-

  heat transfer fluid includes where the evaporator

  tor and the condenser, a compressor and a

relaxation.

  In a monobloc heat pump, almost

  all of the aforementioned component bodies are grouped together in the same body arranged outside the room for storing or using hot water. The connection between the body and the room is effected by means of a heat-insulated water pipe. and doubled to allow the flow of flow and the flow of return, as well as by means of at least one supply and control cable.

  It appears that the arrangement of the heat pumps

  their existing air-water monobloc deserves to be simplified; however, such a simplification must be conducted

  without affecting the performance of the device.

  The invention particularly aims to simplify the construction and installation of a heat pump

  air-water monoblock without affecting its performance, in particular

  clutting the condenser coil in a closed box

  constituting a support base for the compressed assemblies

  - and heat pump evaporator, this compartment

  ment being filled with a thermally insulating material and being exposed to the ambient air by its only lateral surface. In this way, the base of the heat pump adds to its function of supporting the components of the

  pump (compressor unit, evaporator-motor unit)

  fan and cover) a high housing function

  insulating material for the condenser It also forms a

  easy to manufacture and store.

  The heat transferred by the heat transfer fluid to the water circulating in the condenser in fact undergoes minimal losses since the base of the heat pump is surmounted by the compressor compartment and is in contact with the ground or a screed attached to it. this; moreover, a moderate layer of snow is enough to insulate the

  base and further reduce heat losses

cold weather.

  The base may present in contact with the ground or

  from the screed a flat background; on the other hand it can be fa-

  briquetted by molding in metallic or synthetic material,

  the insulating material preferably being an iso- foam

  lante injected in situ around the coil.

  The description of an embodiment not

  limiting, made with reference to the accompanying drawings, will

put to explain the invention.

  The figure r in diagrammatic elevation

  than a monobloc air-water heat pump conforming to

the invention -

  Figure 2 shows on a larger scale the

  heat pump condenser compartment.

  The heat pump illustrated in Figure I

  includes three sets, namely an evaporative set

  10, a compressor 20 and a con-

  density 30, as well as a covering 40.

  The evaporator assembly 10 includes a motor-fan unit II at variable speed as a function of

  outside temperature, an evaporator 12 to snake

  tin helical exchanger, an air outlet grille 13

and soundproofing means 14.

  The compressor assembly 20 present in a case

  soup 21, compressor 22, power box 23

  and diagnostic and a control box 24 The com-

  presser 22 and shoemaker 23 are mounted for example on slides 25 which facilitate the extraction of these components. According to the invention, the condenser assembly 30

  includes a closed box 31-containing a coil

  changer 32 consisting of a coaxial tube with counter

  current embedded in a filling 33 of insulating material

  this filling is for example a polyurethane foam

  not injected in situ into the casing to fill it com- pletely

  fully The box 31 constitutes the base of the pump

  heat and in particular supports the compressor assembly 20.

  The base 31 is removably attached to a concrete screed 34, with the interposition of a layer of bituminous felt 35, by means of a screw 36 cooperating with a threaded dowel 36 embedded in the screed La

  screw head 36 is housed in a recess in the front

this upper of the base 31.

  A lateral annex 37 is fixed so

  removable from the casing 31 to form a housing

  hydraulic and electrical connections 39.

  The thermal insulation of the condenser coil 32 results from both the integral insulating filling 33, from the immediate vicinity of the compressor assembly arranged on the upper face 41 of the box 31, from the laying of the flat bottom 42 of the box on the ground by the layer 35 and screed 34 and the exposure of the

  air box by its single cylindrical side surface

  that 43 susceptible to isolation by a layer of snow

in cold periods.

  The base 31 of the heat pump is manufactured for example by molding in a metallic material or

  non-corrodible synthesis It presents on its upper side

  41 of the holding elements of the components of the compressor assembly 20, for example the slides

  previously cited, and housing 44 for ti-

  vertical ages 45 supporting the covering 40.

Claims (3)

  1 mono-block air-water heat pump including   an evaporator assembly (10) provided with a power unit   fan and a coil evaporator (12), a compressor assembly (20) comprising a compressor (22) and supply and control boxes (23, 24), as well as a condenser assembly (30) serpentine,   characterized by the fact that the coil (32) of the   seems condenser (30) is housed in a closed box   (31) constituting a support base for the whole   presser (20) and the evaporator assembly (10) of the pump   eg heat, the box being filled with a material   thermally insulating (33) and being exposed to am-   biant by its only lateral surface (43).   2 Monobloc heat pump according to the claim   tion 1, characterized in that the material ther-   mically insulating (33) is injected in situ into the box (31).   3 Heat pump according to claim I or 2, characterized in that it is added to the base (31) a removable annex (37) housing the connections (39) hydraulic and electric.