摘要:
The regulator is a refrigerant regulator intended for heatpumps and refrigerators. It has a built-in receiver, which automatically absorbs redundant refrigerant. It is a hermetic closed device without removable parts. It is robust and there is no need for adjustment. The regulator is composed of a heat exchanger with large heat capacity, a receiver and two pressure reducing valves. The two valves behave different on boiling fluid flow. One of them, named a heat sensitive valve, restricts fluid flow when the fluid is boiling. In the other valve, named a pressure sensitive valve, the boiling has no influence on the fluid flow. The regulator controls the refrigerant flow from the receiver to the evaporator by means of the pressure in the receiver - and the pressure in the receiver is controlled, via the heat exchanger, by the need of refrigerant in the evaporator. This way of control ensures 100% use of the evaporator, the suction gas is superheated, and the liquid from the condenser is sub-cooled. These factors improve the relation between the cooling capacity and the power consumption with more than 10%.
摘要:
Bei einer Verdampferplatine (10,30) mit wenigstens einem darauf angeordneten Kältemittelkanal (11,31), welcher wenigstens einen zuflußseitigen, über ein Drosselrohr (14,40) mit Kältemittel beaufschlagbaren Kanalendabschnitt (19,32) und einen an eine Saugleitung angeschlossenen abflußseitigen Kanalendabschnitt (12,36) aufweist, ist der zuflußseitige Kanalendabschnitt (19,32) mit einem dazu vorgelagerten, rohrähnlichen Anschlußstück (20,33) verbunden, welches zum Anschluß des Drosselrohres (14,40) dient und welches zumindest weitestgehend körperschallhemmend an die Verdampferplatine (10,30), zwischen dessen zuflußseitigem Kanalendabschnitt (19,32) und dessen abflußseitigem Kanalendabschnitt (12,36) angekoppelt ist.
摘要:
Bei einer Verdampferplatine (10,30) mit wenigstens einem darauf angeordneten Kältemittelkanal (11,31), welcher wenigstens einen zuflußseitigen, über ein Drosselrohr (14,40) mit Kältemittel beaufschlagbaren Kanalendabschnitt (19,32) und einen an eine Saugleitung angeschlossenen abflußseitigen Kanalendabschnitt (12,36) aufweist, ist der zuflußseitige Kanalendabschnitt (19,32) mit einem dazu vorgelagerten, rohrähnlichen Anschlußstück (20,33) verbunden, welches zum Anschluß des Drosselrohres (14,40) dient und welches zumindest weitestgehend körperschallhemmend an die Verdampferplatine (10,30), zwischen dessen zuflußseitigem Kanalendabschnitt (19,32) und dessen abflußseitigem Kanalendabschnitt (12,36) angekoppelt ist.
摘要:
Heat exchange assembly and relative process and production plant, of the type in which it is used:
a plate evaporator (1), with evaporation duct (1'-1''-1''') obtained between two metallic metal-sheets welded one with the other, that with an outward duct (A) and a return duct (R) debouches into a mouth collector coupling sleeve(12) in a corresponding junction area (13'); a freezing circuit coaxial tubular system (3,4,5), having an external return tube (3) and an internal delivery capillary tubule (5), in which said capillary tubule (5) protrudes over said return tube end (3), where said tubular system is mouthed within said mouth collector coupling sleeve (12) of the evaporator (1), while said capillary tubule (5) debouches freely and is there clamped (11) within said delivery duct branch (1') of said evaporator (1) obtruding the non-return external passage, having the characteristic of avoiding the traditional welding operation allowing a substantially automatized production.
摘要:
A refrigeration system suitable for use in a household refrigerator having a freezer compartment and a fresh food compartment is provided. The refrigeration system includes a first capillary tube (11,51), a first evaporator (13) for providing cooling to the freezer compartment, a two stage compressor (14), a condenser (21), a second capillary (23), and a second evaporator (25) providing cooling to the fresh food compartment. All the above elements are connected together in series in that order, in a refrigerant flow relationship. A phase separator (27) connects the second evaporator (25) to the first capillary tube (11,51) in a refrigerator flow relationship and the phase separator (27) provides intercooling between the first and second stages (15,17) of the compressor (14). A first fraction of the second capillary tube (23) in a heat transfer relationship with the gaseous phase refrigerant providing intercooling and a second fraction of the second capillary tube (23) in a heat transfer relationship with the gaseous phase refrigerant supplied to the suction inlet of the first stage (15) of the compressor (14).
摘要:
Procédé pour l'injection du fluide frigorigène dans une armoire frigorifique monocompresseur à deux compartiments à températures différentes permettant d'obtenir des valeurs fixes de température dans chaque compartiment lorsque la température d'ambiance varie entre une valeur minimale et une valeur maximale. La régulation est effectuée grâce à un thermostat (T) placé dans le compartiment à température plus haute, et le fluide, après compression, est injecté en série dans une première partie (121) de l'évaporateur (120) du compartiment à température plus haute, dans l'évaporateur (110, 111) du compartiment à température plus basse, et dans une seconde partie (122) de l'évaporateur du compartiment à température plus haute avant de retourner au motocompresseur (20). La connaissance des rapports des besoins frigorifiques entre les deux compartiments aux températures extrêmes d'ambiance permet de déterminer les rapports des longueurs et/ou surfaces utiles entre les deux parties (121, 122) de l'évaporateur du compartiment à température plus haute.
摘要:
The present invention belongs to the technological field of cooling systems. A multiple-evaporation cooling system with two or more evaporation lines is disclosed. In a first intermediate heat exchanger (62), the first evaporation line (Levap1), preferably the portion defined between the evaporator (51) and the suction inlet (11) of the compressor (1), is in heat exchanging contact with at least one segment of the expansion device (42) of the second evaporation line. In a second intermediate heat exchanger (61), the second evaporation line (Levap2), preferably the portion defined between the evaporator (52) and the suction inlet (12) of the compressor (1), is in heat exchanging contact with at least one segment of the expansion device (41) of the first evaporation line. The temperature of the intermediate heat exchanger of first evaporation line (62) influences the temperature of the refrigerant flowing in the second line of evaporative expansion device (42) and the temperature of the intermediate heat exchanger of the second evaporative line (61) influences the temperature of the refrigerant flowing in the first line of evaporative expansion device (41). The invention in question is distinguished for varying the restriction of the respective expansion devices (41,42) and then unduly inhibit mass transfer of refrigerant between at least two distinct evaporators (51,52).