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US 8,282,017 B2Granted
Multiple cell heat transfer system
AssigneeTube Fabrication Design, Inc.
InventorsSamuel David Hawkins, Thomas Robert Hapner
Life of this patent
Estimating the term…
Abstract
A heat transfer system comprises a plurality of cells, a plurality of heating elements, and a controller for independently controlling the plurality of heating elements. The heat transfer system is capable of maintaining a fluid temperature within a predetermined range. A second pump pumps fluid through a heat exchanger in operative relationship with the blower upon a call for heat.
Claims25
A heat transfer system comprising:
- a first cell (46) storing liquid and a second cell (48) storing liquid;
- a first heating element assembly (56, 66) associated with the first cell and a second heating element assembly (58, 68) associated with the second cell, wherein said first heating element assembly (56, 66) comprises a first tubular coil (66) situated about a first heating element (56), said first coil adapted to receive liquid from a heat exchanger (14) and to heat the received liquid before it is introduced into said first cell (46) and said second heating element assembly (58, 68) comprises a second tubular coil (68) situated about a second heating element (58), said second coil adapted to receive liquid from a heat exchanger (14) and to heat the received liquid before it is introduced into said second cell (48);
- a controller (22) adapted to independently energize each of said heating element assemblies (56, 66;
- 58, 68) when the temperature of liquid in the associated cell is below a first predetermined temperature;
- and
- a first pump (50) adapted to pump liquid from the first cell (46) to a heat exchanger (14) and from the heat exchanger to the first cell (46) via the first coil (66) and to the second cell (48) via the second coil (68), and a second pump (52) adapted to pump liquid from the second cell (48) to said first cell (46) in order to maintain a liquid temperature in said first cell (46) above a second predetermined temperature,
- wherein the liquid comprises a heat transfer oil which is liquid at temperatures of 220-250° F. and wherein the heat transfer system comprises a closed flow circuit for the liquid.
4 more elements
A heat transfer system, comprising:
- a heat exchanger (14);
- a blower (16) in operative relationship with said heat exchanger;
- a liquid tank (30) having a first cell (46) and a second cell (48), each cell containing a liquid comprising a heat transfer oil which is liquid at temperatures of 220-250° F.;
- a first pump (50) adapted to pump liquid from said first cell (46) to said heat exchanger (14) and from said heat exchanger (14) to said first cell (46) and said second cell (48);
- a second pump (52) adapted to circulate liquid from said second cell (48) to said first cell (46);
- a first heating element assembly (56, 66) situated in said first cell (46) and a second heating element assembly (58, 68) situated in said second cell (48), wherein said first heating element assembly (56, 66) comprises a first tubular coil (66) situated about a first heating element (56), said first coil adapted to receive liquid from the heat exchanger (14) and to heat the received liquid before it is introduced into said first cell (46) and said second heating element assembly (58, 68) comprises a second tubular coil (68) situated about a second heating element (58), said second coil adapted to receive liquid from the heat exchanger (14) and to heat the received liquid before it is introduced into said second cell (48);
- at least one sensor (70, 72) adapted to sense a temperature in at least one of said first cell (46) and said second cell (48);
- a thermostat (20) operable to set a desired room temperature;
- and
- a controller (22) coupled to said thermostat (20), said first pump (50), said second pump (52), said blower (16), said first heating element assembly (56, 66) and said second heating element assembly (58, 68), said controller (22) operable to respond to said thermostat (20) and to control said first heating element assembly (56, 66) and said second heating element assembly (58, 68) and said second pump (52) in order to maintain a temperature of said liquid in said liquid tank (30) within a predetermined temperature range.
7 more elements
Dependencies are inferred from the claim text.