LIQUID HEATER INCLUDING WIRE MESH HEATING SEGMENT
There is provided a liquid heater including: a conduit; a circuit for carrying a DC current; and a wire mesh segment disposed in the conduit and configured to receive the current, wherein the wire mesh segment has a conically shaped surface. There is provided a liquid heater kit including: a DC power supply; and a wire mesh segment configured to be disposed in a conduit and to receive a current from the DC power supply, wherein the wire mesh segment has a conically shaped surface.
1 . A liquid heater comprising:
a conduit;
a circuit for carrying a DC current; and
a wire mesh segment disposed in the conduit and configured to receive the current, wherein the wire mesh segment has a conically shaped surface.
2 . The liquid heater of claim 1 , wherein the DC current is supplied by a voltage source having a potential less than 24 Volts.
3 . The liquid heater of claim 1 , wherein the wire mesh segment comprises multiple wire mesh segments disposed in the conduit.
4 . The liquid heater of claim 3 , further comprising a relay for cycling the current connection to each of the multiple wire mesh segments, and a control circuit for controlling each of the relays.
5 . The radiant oven of claim 3 , further comprising:
a control circuit for controlling current to each of the multiple wire mesh segments by cycling on and off at a duty ratio in response to a user input, or automatically in response to a measured parameter indicting a condition of a liquid.
6 . The liquid heater of claim 1 , further comprising a voltage control circuit configured for varying the voltage of each of the multiple wire mesh segments.
7 . The liquid heater of claim 1 , wherein the wire mesh segment comprises multiple wire mesh segments disposed in the conduit, and electrically connected to a DC power supply in a parallel circuit.
8 . The liquid heater of claim 1 , wherein the conical surface comprises ridges and dips.
9 . The liquid heater of claim 8 , wherein the ridges and dips form a sinusoidal shape.
10 . The liquid heater of claim 1 , further comprising:
a temperature sensor to generate a liquid temperature signal; and
a controller to sense the liquid temperature signal, wherein the circuit for carrying the DC current is enabled when the liquid temperature signal indicates a temperature less than a desired temperature.
11 . The liquid heater of claim 1 , further comprising:
a flow sensor to generate a liquid flowing signal; and
a controller to sense the liquid flowing signal, wherein the circuit for carrying the DC current is enabled when the liquid temperature signal indicates liquid flow.
12 . The liquid heater of claim 1 , wherein the wire mesh segment comprises a broad ring configured to be connected to a positive electrode of a DC power supply.
13 . The liquid heater of claim 1 , wherein the wire mesh segment comprises a narrow ring configured to be connected to a negative electrode of a DC power supply.
14 . The liquid heater of claim 1 , wherein the wire mesh segment comprises a wire mesh cloth comprising wire strands having a diameter less than 0.5 mm and a spacing between the wire strands of less than 0.5 mm.
15 . The liquid heater of claim 14 , wherein the wire strands crisscross and form an electrical short at an intersection.
16 . The liquid heater of claim 1 , wherein the wire mesh segment comprises a hydrophilic coating.
17 . A liquid heater kit comprising:
a DC power supply; and
a wire mesh segment configured to be disposed in a conduit and to receive a current from the DC power supply, wherein the wire mesh segment has a conically shaped surface.
18 . The liquid heater kit of claim 17 , further comprising a conduit, wherein the wire mesh element is disposed in the conduit.
19 . The liquid heater kit of claim 18 , wherein the controller and the wire mesh are of a unitary construction.
20 . The liquid heater kit of claim 17 , further comprising a controller and a temperature sensor.