Refrigerant testing
AssigneeEdwards Vacuum LLC
InventorKaustubh Kale
Life of this patent
Estimating the term…
Abstract
A refrigerant testing device and method for testing refrigerant diverted from a refrigeration system. The method comprises: diverting refrigerant from said refrigeration system to a container; changing a temperature of said refrigerant within said container; measuring a pressure and temperature of said refrigerant as said temperature changes; comparing said measured pressure and temperature values with reference values and where said comparing indicates a difference between said measured values and said stored reference values of more than a predetermined amount, generating a warning indication.
Claims17
A refrigerant testing device for testing refrigerant diverted from a refrigeration system, said refrigerant testing device comprising:
- a container, said container comprising an inlet for receiving said refrigerant from said refrigeration system and an outlet for returning said refrigerant to said refrigeration system;
- an inlet flow control device for opening and closing said inlet;
- and
- an outlet flow control device for opening and closing said outlet;
- a temperature sensor for sensing a temperature of said refrigerant within said container;
- a pressure sensor for sensing a pressure of said refrigerant within said container;
- a temperature controller for controlling a temperature of said refrigerant within said container;
- control circuitry configured to control said refrigerant testing device to test said refrigerant by:
- controlling said inlet and outlet flow control devices to admit said refrigerant into said container and to isolate said refrigerant within said container;
- controling said temperature controller to change a temperature of said refrigerant;
- controling said temperature and pressure sensors to measure said temperature and said pressure of said refrigerant as said temperature changes;
- and
- analysing circuitry configured to compare values of said measured temperature and pressure with reference values;
- and to indicate an error where said measured pressure and temperature values differ from said reference values by more than a predetermined amount.
A method of testing refrigerant within a refrigeration system, said method comprising:
- diverting refrigerant from said refrigeration system to a container;
- changing a temperature of said refrigerant within said container;
- measuring a pressure and temperature of said refrigerant as said temperature changes;
- comparing said measured pressure and temperature values with reference values and where said comparing indicates a difference between said measured values and said stored reference values of more than a predetermined amount, generating a warning indication.
Dependencies are inferred from the claim text.