FR2927985A1 - Ice formation preventing method for heat pump, involves injecting energy on condenser or evaporator by joule effect/ionization for preventing condenser or evaporator from being frozen, and regulating hydraulic/refrigerated flow's direction - Google Patents

Abstract

The method involves injecting energy on a condenser or evaporator by joule effect or ionization for preventing the condenser or evaporator from being frozen. A hydraulic/refrigerated flow is deviated towards the condenser, when a heat pump is out of service. A direction of the hydraulic/refrigerated flow is regulated. Electromagnetic field is created on a refrigerated gas circuit of the heat pump using magnets. An independent claim is also included for a device for preventing formation of ice on a heat pump.

Description

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The present invention relates to a technical method for maintaining the heat pump in operation and improving the cop. The invention also relates to the device for the implementation of this method without external heat exchange (geothermal energy, external aerothermal group ...) The study also relates to the recovery of all energies (hot and cold) on a heat pump. operating heat in order to use them to keep the device running and prevent untimely stops and starts. Currently, PAC installations are able to decommission themselves depending on the outside temperature (frost formation). During a bad heat exchange of the hydraulic flow, of a plate heat exchanger, the compressor passes at high pressure as well as the cooling flow which reduces the COP. Inversion of the result requested on a traditional heat pump to remedy this problem (major drawback) The invention makes it possible to keep the heat pump in permanent operation without hindering the user by injecting energy on: The condenser-evaporator to prevent it to frost and therefore block the device. The use of electric energy by joule effect (resistance), ionization (electrolysis) solar (...) on the evaporator-heat pump condenser allows to remove the group 20 outside (Aerothermal) keeping a higher COP has a . We can also use the heat output of the fires (gas, wood, granules ...) or solar. Thus a compact hydraulic heat pump with plate heat exchanger (hydraulic flow / refrigerant flow on evaporator-condenser) is realized. To avoid putting the compressor under high pressure due to poor heat exchange 2S (example refrigeration flow greater than 100 ° C), it recovers this energy (coil at the compressor) to reduce the temperature-pressure thereof and transfer to the evaporator by diverting the refrigerant flow before passing into the evaporator. The regulation is necessary according to the temperature-pressure. .50 Thus the temperature-pressure of the condenser refrigerant flow drops. This controls the temperature pressure of the condenser-evaporator refrigerant flow. By increasing the evaporator temperature by regulation, it is possible to control the frost, the power and to vary the COP. The use of powerful magnets that create 3J electromagnetic fields modifies the molecules of the refrigerating gas, promotes exchange and modifies the COP. The COP also increases by the use of ionization energy on the evaporator-condenser. The energy supplied to the evaporator can be recovered if the heat pump is out of service (deflection of the hydraulic flow to the condenser).

4 0 It is also possible to cool with heating (domestic hot water, swimming pools, asynchronous motors, etc.) or to heat up while cooling (cold room ...) by controlling the direction of the refrigerating flow with regulation and refrigerating gas solenoid valve 3 or 4 tract.

Claims (10)

1) A method of preventing frost formation on a heat pump, characterized by the fact that energy is injected into the condenser or evaporator to prevent it from frosting. 2) Device for preventing frost formation on a heat pump, for the implementation of the method of claim 1, characterized in that it comprises energy injection means on the condenser or the evaporator of said heat pump. 3) Device according to claim 2, characterized in that said energy injection means consist of an electric resistance by Joule effect or -10 ionization means. 4) Energy device according to claim 2 are solar energy injection means. 5) Device according to one of claims 2 to 4 characterized in that it comprises means for recovering the energy of the designed hydraulic flow adapted to transfer the refrigerant flow on the evaporator-condenser via a plate heat exchanger hydraulic flow I refrigerant flow. 6) Device according to one of claims 2 to 5 characterized in that it comprises means for deviating the refrigerant flow by means of energy recovery at the compressor of said heat pump, particularly in the form of a coil, before the passage of said refrigerant flow in the evaporator of said heat pump. 7) Device according to one of claims 2 to 6 characterized in that it comprises magnets creating electromagnetic fields on the refrigerant gas circuit. 8) Device according to one of claims 2 to 7 characterized in that it comprises 25 ionization means on the evaporator or the condenser. 9) Device according to one of claims 2 to 8 characterized in that it comprises means for deflecting the hydraulic flow to the condenser if said heat pump is out of service. 10) Device according to one of claims 2 to 3 characterized in that it comprises 0 means for regulating the direction of the refrigerant flow.