CA2450485A1 - Pulse combustor system for gas flare stack replacement - Google Patents
Pulse combustor system for gas flare stack replacement Download PDFInfo
- Publication number
- CA2450485A1 CA2450485A1 CA 2450485 CA2450485A CA2450485A1 CA 2450485 A1 CA2450485 A1 CA 2450485A1 CA 2450485 CA2450485 CA 2450485 CA 2450485 A CA2450485 A CA 2450485A CA 2450485 A1 CA2450485 A1 CA 2450485A1
- Authority
- CA
- Canada
- Prior art keywords
- combustor
- pulse combustor
- air
- pulse
- ignition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C15/00—Apparatus in which combustion takes place in pulses influenced by acoustic resonance in a gas mass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
Abstract
The invention provides a unique, detailed method of burning gaseous fuels from oil/ gas fields or landfills replacing existing gas flare stack systems.
The invention mainly consists of an aerovalved pulse-combustor that promote the flow of air and hot combustion gases to a swirl-combustor that burn more fuel in the system. A photovoltaic solar system or a thermoelectric system produces electricity that charges a small battery that supplies energy to an ignition system. The electrical power is also used to drive an electrical motor that drives a small compressor that keeps an air pressurized tank full. Both the ignition and compressed air are only briefly active at the beginning of the ignition phase of the system. The only moving part is the electrical-motor compressor that is only activated when the air tank is not full.
The invention mainly consists of an aerovalved pulse-combustor that promote the flow of air and hot combustion gases to a swirl-combustor that burn more fuel in the system. A photovoltaic solar system or a thermoelectric system produces electricity that charges a small battery that supplies energy to an ignition system. The electrical power is also used to drive an electrical motor that drives a small compressor that keeps an air pressurized tank full. Both the ignition and compressed air are only briefly active at the beginning of the ignition phase of the system. The only moving part is the electrical-motor compressor that is only activated when the air tank is not full.
Description
nw Pulse Combustor System For Gas Flare Stack Replacement This invention is a combustion device that burns gaseous fuel in an efficient an simple way replacing existing gas flare stack systems.
BACKGROUND:
In oil and gas fields as well as landfills it is common to burn gaseous fuel using flare stacks. This flare stacks have the flame burning in an open field subject to cross winds. The efficient of gas flare stacks can severely deteriorate pending on is atmospheric conditions and in special the wind velocity. The gas and air mixes mainly at the stack tip and the consequently burning efficiencies varies depending on the degree of mixing between the fuel and air. On the other hand, conventional incinerators used to replace flare stacks use buoyant forces to promote air movement and therefore use long chimneys to promote the necessary draft. These 2o incinerators are expensive and bulky.
The proposed system uses a pulse combustor that burns some of the gasous fuel producing a flow of hot combustion gases that induces external air in to its strain.
These mixture of gases and air flows to a swirl combustor that burns the reamaining gaseos fuel. The use of the pulse combustor eliminates the need of chimneys used in conventional incinerators creating a much more compact and efficient burning system. To avoid overloading the pulse combustor, which can produce significant amounts of acoustic noise plus high combustor parts temperatures, the system uses a swirl combustor in series that can burn the remaining raw gaseous fuel.
y, An auxiliary starting system, consisiting mainly of an electrical ignitor plus compressed air is used to initiate the pulse combustor operation. This auxiliary starting system is only activated at the beginning of the pulse combusto ignition phase. Once the pulse combustor starts its operational cycle, there is no need for either external ignition sources or auxiliary compressed air.
SUMMARY OF THE INVENTION:
It is the object of the present invention to provide an extremely simple way of 15 burning gaseous fuel from oil/ gas fields or landfills in replace of gas flare stacks or incinerators.
The present invention accomplishes these objectives using, as shown on Fig l, an air tank 1 that has an air compressor 2 that compressses atmospheric air supplying 20 it during the starting phase of a pulse combustor 3. At the pulse combustor exit and air ejector 4 guarantees new fresh air necessary to flow into the swirl cornbustor case 5 whey it mixes with fuel at the swirl combustor tube 6. The swirl combustor 6 is used here to burn more fuel avoiding overloading the pulse combustor with fuel and, if necessary, it can burn with flame at higher temperatures. This is 25 because the pulse combustor 3 tend to both increase noise and combustor wall temperatures with the increase of fuel being burned.
For starting conditions, a solar collector 7 is suggested as a source of electricity but it could have been a thermoelectric device using the hot combustor wall energy associated. The electricity produced in 7 is used to charge a small battery 10 that is used to produce electrical power to activate the ignition system. Therefore, the electrical energy source 7 also drives the small compressor 1. The control system 11 guarantees that when gasous fine is coming to the system, it activates both the ignition and compressed air system. The ignition and compressed air are used to start the pulse combustor. Both devices can also used to assist to start the swirl y - PAGE S-combustor operation. Once the pulse combustor operates in its natural frequency, there is no need for external supply or ignition source. Alternatively the electrical generator 7 could be a simple turbine located at the air ejector region 4 driving a small generator plus the compressor 2.
BACKGROUND:
In oil and gas fields as well as landfills it is common to burn gaseous fuel using flare stacks. This flare stacks have the flame burning in an open field subject to cross winds. The efficient of gas flare stacks can severely deteriorate pending on is atmospheric conditions and in special the wind velocity. The gas and air mixes mainly at the stack tip and the consequently burning efficiencies varies depending on the degree of mixing between the fuel and air. On the other hand, conventional incinerators used to replace flare stacks use buoyant forces to promote air movement and therefore use long chimneys to promote the necessary draft. These 2o incinerators are expensive and bulky.
The proposed system uses a pulse combustor that burns some of the gasous fuel producing a flow of hot combustion gases that induces external air in to its strain.
These mixture of gases and air flows to a swirl combustor that burns the reamaining gaseos fuel. The use of the pulse combustor eliminates the need of chimneys used in conventional incinerators creating a much more compact and efficient burning system. To avoid overloading the pulse combustor, which can produce significant amounts of acoustic noise plus high combustor parts temperatures, the system uses a swirl combustor in series that can burn the remaining raw gaseous fuel.
y, An auxiliary starting system, consisiting mainly of an electrical ignitor plus compressed air is used to initiate the pulse combustor operation. This auxiliary starting system is only activated at the beginning of the pulse combusto ignition phase. Once the pulse combustor starts its operational cycle, there is no need for either external ignition sources or auxiliary compressed air.
SUMMARY OF THE INVENTION:
It is the object of the present invention to provide an extremely simple way of 15 burning gaseous fuel from oil/ gas fields or landfills in replace of gas flare stacks or incinerators.
The present invention accomplishes these objectives using, as shown on Fig l, an air tank 1 that has an air compressor 2 that compressses atmospheric air supplying 20 it during the starting phase of a pulse combustor 3. At the pulse combustor exit and air ejector 4 guarantees new fresh air necessary to flow into the swirl cornbustor case 5 whey it mixes with fuel at the swirl combustor tube 6. The swirl combustor 6 is used here to burn more fuel avoiding overloading the pulse combustor with fuel and, if necessary, it can burn with flame at higher temperatures. This is 25 because the pulse combustor 3 tend to both increase noise and combustor wall temperatures with the increase of fuel being burned.
For starting conditions, a solar collector 7 is suggested as a source of electricity but it could have been a thermoelectric device using the hot combustor wall energy associated. The electricity produced in 7 is used to charge a small battery 10 that is used to produce electrical power to activate the ignition system. Therefore, the electrical energy source 7 also drives the small compressor 1. The control system 11 guarantees that when gasous fine is coming to the system, it activates both the ignition and compressed air system. The ignition and compressed air are used to start the pulse combustor. Both devices can also used to assist to start the swirl y - PAGE S-combustor operation. Once the pulse combustor operates in its natural frequency, there is no need for external supply or ignition source. Alternatively the electrical generator 7 could be a simple turbine located at the air ejector region 4 driving a small generator plus the compressor 2.
Claims (5)
1. The use of a pulse combustor device as a basic incinerator of gaseous fuels from oil/gas fields or landfills. This pulse combustor incinerator replaces existing gas flare stacks for these applications.
2. The use of a pulse combustor as described on item 1 in conjunction with a more conventional combustor such as a swirl burner. The pulse combustor is used to crete a flow of burned gases and induced air, through an ejector to the swirl combustor.
3. The use of a pulse combustor as described on item 1 that uses compressed air coming from a tank that is used to assist the pulse combustor starting operation.
4. The whole system as shown in Fig I where the pulse combustor pumps hot gases/
air to the steady flow combustor using an auxiliary starting system that consists mainly of a compressed air tank and an ignition device.
air to the steady flow combustor using an auxiliary starting system that consists mainly of a compressed air tank and an ignition device.
5. A method of obtaining high combustion performace with the use of a pulse combustor to pump air to a secondary combustor, eliminating or reducing the need for a combustion fan. This system can be used in pressurized combustion such as in gas turbine engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2450485 CA2450485A1 (en) | 2003-11-17 | 2003-11-17 | Pulse combustor system for gas flare stack replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2450485 CA2450485A1 (en) | 2003-11-17 | 2003-11-17 | Pulse combustor system for gas flare stack replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2450485A1 true CA2450485A1 (en) | 2005-05-17 |
Family
ID=34558396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2450485 Abandoned CA2450485A1 (en) | 2003-11-17 | 2003-11-17 | Pulse combustor system for gas flare stack replacement |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2450485A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014105462A1 (en) * | 2012-12-24 | 2014-07-03 | General Electric Company | Systems and methods for oxidation of boil-off gas |
| CN114688741A (en) * | 2020-12-25 | 2022-07-01 | 芜湖美的厨卫电器制造有限公司 | Combustor and gas water heater |
| US11577191B1 (en) | 2021-09-09 | 2023-02-14 | ColdStream Energy IP, LLC | Portable pressure swing adsorption method and system for fuel gas conditioning |
| US11717784B1 (en) | 2020-11-10 | 2023-08-08 | Solid State Separation Holdings, LLC | Natural gas adsorptive separation system and method |
-
2003
- 2003-11-17 CA CA 2450485 patent/CA2450485A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014105462A1 (en) * | 2012-12-24 | 2014-07-03 | General Electric Company | Systems and methods for oxidation of boil-off gas |
| CN105008803A (en) * | 2012-12-24 | 2015-10-28 | 通用电气公司 | Systems and methods for oxidation of boil-off gas |
| US9188285B2 (en) | 2012-12-24 | 2015-11-17 | General Electric Company | Systems and methods for oxidation of boil-off gas |
| US11717784B1 (en) | 2020-11-10 | 2023-08-08 | Solid State Separation Holdings, LLC | Natural gas adsorptive separation system and method |
| CN114688741A (en) * | 2020-12-25 | 2022-07-01 | 芜湖美的厨卫电器制造有限公司 | Combustor and gas water heater |
| US11577191B1 (en) | 2021-09-09 | 2023-02-14 | ColdStream Energy IP, LLC | Portable pressure swing adsorption method and system for fuel gas conditioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |