Refrigeration system demonstration device
AssigneeCarrier Corporation
InventorsRichard Seymour Smith, Philip Abraham Hider
Life of this patent
Estimating the term…
Abstract
A demonstration device for simulating the operation of a heat pump system comprising a schematic representation of a heat pump system, a plurality of lamps and associated electrical circuitry adapted to illuminate portions of the schematic representation to simulate the operation of the heat pump system in various modes of operation, and to simulate refrigerant flow and the phase state and temperature of the refrigerant at different places in the system, and associated explanatory panels for alternatively demonstrating the operation of the electrical circuitry of the heat pump system, or indicating the mode of operation of the system.
Claims13
A demonstration device for demonstrating the operation of an actual refrigeration system, said device comprising:
- display means comprising a display of a schematic representation of the actual refrigeration system, said representation including symbols of:
- heat exchange apparatus, apparatus for changing the pressure and temperature characteristics of the refrigerant, refrigerant flow lines, and apparatus for controlling the direction of refrigerant flow;
- apparatus illuminating means associated with said display means for selectively illuminating said apparatus symbols;
- refrigerant flow line illuminating means associated with said refrigerant flow line symbols for selectively illuminating said flow line symbols to simulate refrigerant flow and the phase state and temperature of the refrigerant;
- and
- electrical control means for selectively simulating at least one mode of operation of the refrigeration system, said control means including:
- first electrical circuit means for effecting energization of the apparatus illuminating means to illuminate the symbols of said apparatus corresponding to the apparatus energized when the actual refrigeration system operates in the simulated mode of operation;
- and
- second electrical circuit means for effecting energization of the refrigerant flow line illuminating means to simulate the direction of movement of refrigerant in the flow lines and the phase state and temperature of the refrigerant in the flow lines corresponding to the actual direction of refrigerant flow and the phase state and temperature of the refrigerant, when the actual refrigeration system operates in the simulated mode of operation.
Apparatus for demonstrating the operation of an actual heat pump system, said apparatus comprising:
- a first panel having a schematic representation of the actual heat pump system;
- the representation including translucent symbols of an indoor coil, an outdoor coil, a compressor, a four-way valve, metering devices associated with said coils, refrigerant flow lines connecting the heat pump components to form a heat pump, and fans associated with said coils;
- a second panel having a circuit diagram of the electrical system for controlling the energization of electrically energizable apparatus of the heat pump, the circuit diagram including translucent symbols of energizable electrical components of the circuit;
- electric lamps associated with the respective translucent symbols on said first and second panels for illuminating the respective symbols when the lamps are energized, said lamps including a plurality of aligned lamps associated with the refrigerant flow line symbols;
- and
- electric control means for selectively simulating heating and cooling modes of operation of the heat pump system, said control means comprising:
- first electric circuit means actuable for selectively illuminating the lamps associated with the symbols of the indoor coil, the outdoor coil, the compressor, the four-way valve, and the fans associated with the coils, according to the mode of operation of the actual refrigeration system;
- second electric circuit means electrically associated with said first circuit means and illuminating the lamps associated with the refrigerant flow line symbols in first or second sequences to simulate the direction of refrigerant flow according to the simulated mode of operation of the actual heat pump system;
- and
- thermostatic control means for actuating said first and second circuit means, said thermostatic control means including means for selecting the mode of operation simulated by said apparatus, and the respective temperatures at which said first and second circuit means are actuated.
Dependencies are inferred from the claim text.