Exhaust heat recovery from a mobile power generation system

Patent metadata

Field	Value
Publication number	US-11512906-B2
Application number	US-202117212968-A
Country	US
Kind code	B2
Filing date	Mar 25, 2021
Priority date	Jan 2, 2018
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

A system and a method for heating source fluid, comprising: a turbine-electric generator transport comprising: an inlet plenum and an exhaust collector; a turbine connected to the inlet plenum and the exhaust collector; and an electric-generator coupled to the turbine; an exhaust heat recovery transport comprising: a combustion air connection coupled to the inlet plenum; an exhaust air connection coupled to the exhaust collector; a heat transfer assembly coupled to the exhaust air connection; and a fluid system coupled to the heat transfer assembly; an inlet and exhaust transport comprising: an air inlet filter housing coupled to the combustion air connection; and an exhaust stack coupled to the exhaust air connection.

First claim

The invention claimed is:

1. An exhaust heat recovery transport comprising:
a combustion air connection having upstream and downstream ends, wherein the downstream end of the combustion air connection is detachably connectable to an inlet plenum disposed on a separate turbine-electric generator transport, and the upstream end of the combustion air connection is detachably connectable to an air inlet filter housing disposed on a separate inlet and exhaust transport;
an exhaust air connection having upstream and downstream ends, wherein the upstream end of the exhaust air connection is detachably connectable to an exhaust collector disposed on the separate turbine-electric generator transport, and the downstream end of the exhaust air connection is detachably connectable to an exhaust stack disposed on the separate inlet and exhaust transport; and
a heat transfer assembly coupled between the upstream and downstream ends of the exhaust air connection, wherein the heat transfer assembly transfers thermal energy from exhaust air flowing from an upstream end side to a downstream end side of the exhaust air connection to a source fluid flowing through the heat transfer assembly to generate a heated source fluid.

2. The exhaust heat recovery transport according to claim 1 , further comprising a controller, at least one control valve, and at least one pump assembly,
wherein the controller controls a flow rate of the source fluid flowing into the heat transfer assembly to generate the heated source fluid having a predetermined target temperature based on a determined temperature and a determined flow rate of the exhaust air flowing from the upstream end side to the downstream end side of the exhaust air connection, and based on a determined initial temperature of the source fluid flowing into the heat transfer assembly.

3. The exhaust heat recovery transport according to claim 2 , wherein the controller further controls the at least one control valve and the at least one pump assembly to bypass a portion of the source fluid away from the heat transfer assembly, and mix the bypassed portion of the source fluid with source fluid discharged from the heat transfer assembly to generate the heated source fluid having the predetermined target temperature.

4. The exhaust heat recovery transport according to claim 1 , wherein the exhaust air connection comprises a first heat recovery exhaust connector and a second heat recovery exhaust connector, the first heat recovery exhaust connector and the second heat recovery exhaust connector being disconnected in a transportation mode and connected in an operational mode.

5. The exhaust heat recovery transport according to claim 4 , wherein in the transportation mode, the first heat recovery exhaust connector and the second heat recovery exhaust connector being disconnected from each other fit within dimensions of the exhaust heat recovery transport, and in the operational mode, the first heat recovery exhaust connector and the second heat recovery exhaust connector being connected to each other elongate and extend the exhaust air connection beyond the dimensions of the exhaust heat recovery transport.

6. The exhaust heat recovery transport according to claim 4 , wherein the first heat recovery exhaust connector is fixedly mounted on the exhaust heat recovery transport, and the second heat recovery exhaust connector is movably mounted on the exhaust heat recovery transport such that the second heat recovery exhaust connector pivots to connect and seal with the first heat recovery exhaust connector in the operational mode.

7. The exhaust heat recovery transport according to claim 6 , wherein in the operational mode with the second heat recovery exhaust connector connected and sealed with the first heat recovery exhaust connector, an upstream end of the second heat recovery exhaust connector extends beyond dimensions of the exhaust heat recovery transport and is detachably connectable to the exhaust collector disposed on the separate turbine-electric generator transport.

8. The exhaust heat recovery transport according to claim 6 , wherein the heat transfer assembly is located within the first heat recovery exhaust connector fixedly mounted on the exhaust heat recovery transport.

9. The exhaust heat recovery transport according to claim 1 , wherein the combustion air connection comprises a heat recovery combustion connector that rotates when transitioning from a transportation mode to an operational mode.

10. The exhaust heat recovery transport according to claim 9 , wherein, in the transportation mode, a longitudinal side of the heat recovery combustion connector is substantially parallel to a longitudinal side of the exhaust heat recovery transport, and in the operational mode, the longitudinal side of the heat recovery combustion connector is substantially perpendicular to the longitudinal side of the exhaust heat recovery transport.

11. The exhaust heat recovery transport according to claim 9 , wherein the heat recovery combustion connector is mounted on a turntable on the exhaust heat recovery transport.

12. The exhaust heat recovery transport according to claim 9 , wherein the heat recovery combustion connector includes an ambient air heating system to heat combustion air flowing through the combustion air connection and supplied to the inlet plenum of the separate turbine-electric generator transport.

13. The exhaust heat recovery transport according to claim 12 , wherein the ambient air heating system heats the combustion air flowing through the combustion air connection with the heated source fluid generated by the heat transfer assembly.

14. A method for heating source fluid, the method comprising:
detachably connecting a first end of a combustion air connection disposed on an exhaust heat recovery transport to an inlet plenum disposed on a turbine-electric generator transport, the inlet plenum being disposed upstream to an intake of a turbine disposed on the turbine-electric generator transport;
detachably connecting a first end of an exhaust air connection disposed on the exhaust heat recovery transport to an exhaust collector disposed on the turbine-electric generator transport, the exhaust collector being disposed downstream to an exhaust of the turbine, wherein a heat transfer assembly is coupled between the first end and a second end of the exhaust air connection;
detachably coupling an air inlet filter housing disposed on an inlet and exhaust transport to a second end of the combustion air connection on an upstream side thereof;
detachably coupling an exhaust stack disposed on the inlet and exhaust transport to the second end of the exhaust air connection on a downstream side thereof;
receiving, at the heat transfer assembly disposed on the exhaust heat recovery transport, exhaust air from the exhaust collector;
transferring, within the heat transfer assembly, thermal energy from the exhaust air to a source fluid flowing through the heat transfer assembly to generate a heated source fluid; and
discharging the heated source fluid from the heat transfer assembly.

15. The method for heating source fluid according to claim 14 , further comprising:
rotating the combustion air connection which is rotatably mounted on the exhaust heat recovery transport such that a longitudinal side of the combustion air connection is substantially perpendicular to a longitudinal side of the exhaust heat recovery transport;
pivoting a second heat recovery exhaust connector movably mounted on the exhaust heat recovery transport to connect and seal the second heat recovery exhaust connector with a first hea

Assignees

• Typhon Tech Solutions Llc
• Typhon Tech Solutions U S Llc

Inventors

• Morris Jeffrey G
• Bodishbaugh Adrian Benjamin
• Vann Brett

Classifications

• E21B43/2607

  Surface equipment specially adapted for fracturing operations · CPC title

• F05D2220/76

  an electrical generator · CPC title

• F28D21/001 Primary

  for thermal power plants or industrial processes · CPC title

• F02C6/18 Primary

  using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants (using waste heat as source of energy for refrigeration plants F25B27/02; using the waste heat of a gasturbine for steam generation or in a steam cycle see F01K23/10) · CPC title

• F01D15/10

  Adaptations for driving, or combinations with, electric generators · CPC title