Refrigerant riser for evaporator
AssigneeCarrier Corporation
InventorsMarcel Christians, Jack Leon Esformes, Satyam Bendapudi
Life of this patent
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Abstract
A heating, ventilation and air conditioning (HVAC) system includes a condenser (18) flowing a flow of refrigerant therethrough and to an output pipe (56) and a falling film evaporator (12) in flow communication with the condenser and having an evaporator input pipe (58) located vertically higher than the output pipe. A plurality of riser pipes (60) connect the output pipe to the evaporator input pipe. The flow of refrigerant flows through selected riser pipes of the plurality of riser pipes as required by a load on the HVAC system.
Claims10
A heating, ventilation and air conditioning (HVAC) system comprising:
- a condenser flowing a flow of refrigerant therethrough;
- an expansion device disposed downstream of the condenser such that the flow of refrigerant output from the condenser flows through the expansion device;
- an output pipe disposed directly downstream of the expansion device such that the flow of refrigerant output from the expansion device directly flows into the output pipe;
- a falling film evaporator in flow communication with the condenser and having an evaporator input pipe disposed vertically higher than the output pipe;
- and
- a plurality of riser pipes, each riser pipe of the plurality of riser pipes including:
- a first riser pipe end connected to and extending from the output pipe;
- and
- a second riser pipe end opposite the first riser pipe end connected to and extending from the evaporator input pipe;
- wherein the flow of refrigerant selectably flows through one or more selected riser pipes of the plurality of riser pipes from the output pipe to the input pipe as required by a load on the HVAC system.
Dependencies are inferred from the claim text.