Method and apparatus for augmented heat up of a unit
View Patent ↗A system and a method of augmenting the heat up of a unit using a compressed, heated gas that contains moisture such as steam or vaporized water such that the specific heat of the gas is increased. In a preferred embodiment, steam in compressed inert gas such as nitrogen is capable of augmenting the heat up cycle for units such as process reactor vessels, furnaces, process steam and power production boilers, turbines, and other production vessels.
1. A system for the augmented heat up of a unit comprising:
a gas pump for providing a heated, compressed flow of an inert gas;
a steam injector connected to the gas pump, wherein the injector is capable of injecting steam into the heated, compressed flow of inert gas;
a water trap connected to the injector and connected to the unit, wherein the water trap is capable of capturing condensation from the heated, compressed flow of inert gas containing the steam;
a static mixer connected to the gas pump and the steam injector; and
a dew point sampler connected between the static mixer and the unit.
2. The system of claim 1 wherein the steam is saturated steam.
3. The system of claim 1 wherein the heated, compressed flow of the inert gas is greater than about 100° C.
4. The system of claim 1 further comprising a controller capable of monitoring the temperature of the unit.
5. The system of claim 1 wherein the inert gas is nitrogen.
6. The system of claim 1 wherein the unit is a turbine.
7. A method of augmenting the heat up of a unit comprising the steps of:
(a) pumping a heated, compressed flow of an inert gas;
(b) injecting steam into the heated, compressed flow of inert gas;
(c) mixing the inert gas and steam with a static mixer;
(d) monitoring the dew point of the mixture of inert gas and steam with a dew point sampler; and
(e) augmenting the heat up of the unit with the heated, compressed flow of inert gas containing the steam.
8. The method of claim 7 wherein the method further comprises the step of trapping condensation prior to Step (e).
9. The method of claim 7 wherein the method further comprises the step of vaporizing the water prior to Step (c).
10. The method of claim 7 wherein the heated, compressed flow of inert gas is greater than 100° C.
11. The method of claim 7 further comprising a controller capable of monitoring the temperature of the unit.
12. The method of claim 7 wherein the inert gas is nitrogen.
13. The method of claim 7 wherein the unit is a turbine.
14. The system of claim 1 wherein the unit is a steam turbine.
15. The system of claim 1 wherein the water trap is disposed between the steam injector and the unit prior to the heated, compressed flow of inert gas entering the unit.