CN220038418U - Post-combustion overheat type gas engine waste heat steam injection boiler system with sleeve device - Google Patents
Post-combustion overheat type gas engine waste heat steam injection boiler system with sleeve device Download PDFInfo
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- CN220038418U CN220038418U CN202320453662.9U CN202320453662U CN220038418U CN 220038418 U CN220038418 U CN 220038418U CN 202320453662 U CN202320453662 U CN 202320453662U CN 220038418 U CN220038418 U CN 220038418U
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- 238000010793 Steam injection (oil industry) Methods 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 title claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 15
- 239000002918 waste heat Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229920006395 saturated elastomer Polymers 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000003245 coal Substances 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000013021 overheating Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Spray-Type Burners (AREA)
Abstract
The utility model aims to provide a post-combustion superheated type gas turbine waste heat steam injection boiler system with a sleeve device, which comprises a boiler body, an inlet flue, an outlet flue, a burner, a high-pressure plunger pump, a sleeve heat exchanger, a steam-water separator and a superheater outlet header, wherein the inlet end of the boiler body is connected with the inlet flue, the outlet end of the boiler body is connected with the outlet flue, the burner is arranged in front of the inlet flue and comprises a main burner and an ignition burner, the high-pressure plunger pump, the sleeve heat exchanger, the steam-water separator and the superheater outlet header are arranged outside the boiler body, and an economizer, an evaporator and a superheater are arranged inside the boiler body. The utility model can generate high-pressure superheated steam, increase steam pressure and heat, ensure that the steam is still in a superheated state after the oil field is injected into the well, further improve the thick oil exploitation effect, and simultaneously has the afterburning device, can adjust the gas production of the boiler at any time according to the requirements of users, and has wider application range.
Description
Technical Field
The utility model relates to an air injection boiler, in particular to an air injection boiler for an oil field.
Background
The existing steam injection boiler for the oil field mostly adopts a saturated steam injection well mode, and after heavy oil or natural gas burns and releases heat, a working medium is heated to be wet saturated steam with 50-80% dryness, and the wet saturated steam with 50-80% dryness is injected into the well; or a high-dryness section structure is added to generate about 90% -100% of high-dryness steam for well injection. However, due to the wet steam, the problem of equipment steam corrosion exists, meanwhile, the heat contained in the wet steam is low, the dryness of the wet steam is reduced after the wet steam is conveyed to the bottom of a well through a pipe network and a well column, and the exploitation effect of an oil field is reduced. On the other hand, the exhaust gas temperature of the gas turbine is sometimes lower, and the requirement of a user for larger gas production can not be met, so that the exploitation efficiency of an oil field is affected.
Disclosure of Invention
The utility model aims to provide a post-combustion superheated type gas engine waste heat steam injection boiler system which can generate superheated steam with the dryness of 90% -100% and is provided with a post-combustion device, and the post-combustion superheated type gas engine waste heat steam injection boiler system with a sleeve device can adjust the gas production amount at any time according to the requirements of users.
The purpose of the utility model is realized in the following way:
the utility model relates to a post-combustion overheat type gas engine waste heat steam injection boiler system with a sleeve device, which is characterized in that: the boiler comprises a boiler body, an inlet flue, an outlet flue, a burner, a high-pressure plunger pump, a sleeve heat exchanger, a steam-water separator and a superheater outlet header, wherein the inlet end of the boiler body is connected with the inlet flue, the outlet end of the boiler body is connected with the outlet flue, the burner is arranged in front of the inlet flue, the burner comprises a main burner and an ignition burner, the high-pressure plunger pump, the sleeve heat exchanger, the steam-water separator and the superheater outlet header are arranged outside the boiler body, and an economizer, an evaporator and a superheater are arranged inside the boiler body.
The utility model may further include:
1. the high-pressure plunger pump is connected with the sleeve heat exchanger, the hot water inlet of the sleeve heat exchanger is connected with the outlet pipeline of the coal economizer, the hot water outlet of the sleeve heat exchanger is connected with the inlet of the evaporator, the cold water inlet of the sleeve heat exchanger is connected with the high-pressure plunger pump, the cold water outlet of the sleeve heat exchanger is connected with the inlet pipeline of the coal economizer, the outlet of the evaporator is connected with the steam-water separator, the separated high-dryness steam enters the superheater, and the separated high-salinity saturated water and the superheated steam are mixed into the superheated steam in the superheater outlet header in a water spraying and temperature reducing mode.
2. The boiler body adopts a once-through boiler structure, the inlet flue comprises a heating surface pipe section, the heating surface pipe section adopts a pipe box type structure, the pipe box adopts an inner heat preservation outer reinforcing structure, the pipe box is internally provided with a pipe plate for supporting the heating surface pipe group, and the heating surface adopts a spiral fin pipe structure.
3. The steam-water separator is of a cylindrical spherical end socket structure.
The utility model has the advantages that: the utility model can adapt to the characteristics of larger range of steam pressure change, high dryness, skid-mounted requirement and convenient transportation of the steam injection boiler, can utilize the boiler to generate high-pressure superheated steam, increase steam pressure and heat, ensure that the steam is still in a superheated state after the oil field is injected into the well, further improve the thickened oil exploitation effect, and simultaneously the superheated steam injection system for the oil field is provided with the afterburning device, can adjust the gas yield of the boiler at any time according to the requirements of users, and has wider application range.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
The utility model is described in more detail below, by way of example, with reference to the accompanying drawings:
referring to fig. 1, the utility model provides a post-combustion superheated type gas turbine waste heat steam injection boiler system with a sleeve device, which comprises: boiler body and auxiliary equipment. The boiler body comprises an inlet flue 1, a superheater 2, an evaporator 3, an economizer 4, an outlet flue 5, a superheater outlet header 6 and a double-pipe heat exchanger 10; the accessory equipment comprises a burner 7, including a main burner 7.1 and an ignition burner 7.2, a high-pressure plunger pump 8 and a steam-water separator 9. The high-pressure plunger pump 8 is connected with a water supply pipeline, water is pressurized by the high-pressure plunger pump 8 and enters the double-pipe heat exchanger 10, a hot water inlet of the double-pipe heat exchanger 10 is communicated with an outlet pipeline of the coal economizer 4, a hot water outlet of the double-pipe heat exchanger is communicated with the evaporator 3, a cold water inlet of the double-pipe heat exchanger is communicated with the high-pressure plunger pump 8, a cold water outlet of the double-pipe heat exchanger is communicated with an inlet pipeline of the coal economizer 4, the water supply of the high-pressure plunger pump 8 is heated once in the double-pipe heat exchanger 10, the heated water supply enters the evaporator 3, a steam-water mixture from the evaporator 3 enters the steam-water separator 9, the separated high-dryness steam enters the steam injection boiler superheater 2 at 90% -100%, the superheated steam is heated, and meanwhile, the high-salinity saturated water separated from the steam-water separator 9 and the superheated steam are mixed into superheated steam required by a process in a water spray temperature reduction mode in the superheater outlet header 6, and the superheated steam pressure is 10-22MPa, so that the superheated steam is heated for use.
The gas injection boiler adopts a direct-current boiler structure, a modularized design, an inlet flue adopts an inner heat-preservation outer reinforcement structure, a heated surface pipe section adopts a pipe box type structure, a pipe box adopts an inner heat-preservation outer reinforcement structure, a pipe plate is used for supporting a heated surface pipe group in the pipe box, and a heated surface adopts a spiral fin pipe structure.
The high-pressure plunger pump 8 is used for conveying deaerator feed water into the steam injection boiler, so as to ensure the supply of the feed water.
The burner 7 is used for the combustion of the supplementary fuel, ensuring the supply of heat required by the steam injection boiler.
The steam-water separator 9 is of a cylindrical spherical end socket structure and is used for separating wet saturated steam at the outlet of the evaporator 3 into saturated dry steam and saturated water, so that the water treatment cost is greatly reduced.
The double-pipe heat exchanger 10 heats the water supply once to adapt to the actual condition that the water from the oil field is softened water, and the water supply is preheated, so that oxygen in the water is removed, and the phenomena of corrosion and scaling of the economizer are avoided.
Claims (4)
1. The afterburning overheating type gas turbine waste heat steam injection boiler system with the sleeve device is characterized in that: the boiler comprises a boiler body, an inlet flue, an outlet flue, a burner, a high-pressure plunger pump, a sleeve heat exchanger, a steam-water separator and a superheater outlet header, wherein the inlet end of the boiler body is connected with the inlet flue, the outlet end of the boiler body is connected with the outlet flue, the burner is arranged in front of the inlet flue, the burner comprises a main burner and an ignition burner, the high-pressure plunger pump, the sleeve heat exchanger, the steam-water separator and the superheater outlet header are arranged outside the boiler body, and an economizer, an evaporator and a superheater are arranged inside the boiler body.
2. The post-combustion superheated type gas turbine waste heat steam-injection boiler system with sleeve device according to claim 1, wherein the post-combustion superheated type gas turbine waste heat steam-injection boiler system is characterized in that: the high-pressure plunger pump is connected with the sleeve heat exchanger, the hot water inlet of the sleeve heat exchanger is connected with the outlet pipeline of the coal economizer, the hot water outlet of the sleeve heat exchanger is connected with the inlet of the evaporator, the cold water inlet of the sleeve heat exchanger is connected with the high-pressure plunger pump, the cold water outlet of the sleeve heat exchanger is connected with the inlet pipeline of the coal economizer, the outlet of the evaporator is connected with the steam-water separator, the separated high-dryness steam enters the superheater, and the separated high-salinity saturated water and the superheated steam are mixed into the superheated steam in the superheater outlet header in a water spraying and temperature reducing mode.
3. The post-combustion superheated type gas turbine waste heat steam-injection boiler system with sleeve device according to claim 1, wherein the post-combustion superheated type gas turbine waste heat steam-injection boiler system is characterized in that: the boiler body adopts a once-through boiler structure, the inlet flue comprises a heating surface pipe section, the heating surface pipe section adopts a pipe box type structure, the pipe box adopts an inner heat preservation outer reinforcing structure, the pipe box is internally provided with a pipe plate for supporting the heating surface pipe group, and the heating surface adopts a spiral fin pipe structure.
4. The post-combustion superheated type gas turbine waste heat steam-injection boiler system with sleeve device according to claim 1, wherein the post-combustion superheated type gas turbine waste heat steam-injection boiler system is characterized in that: the steam-water separator is of a cylindrical spherical end socket structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320453662.9U CN220038418U (en) | 2023-03-11 | 2023-03-11 | Post-combustion overheat type gas engine waste heat steam injection boiler system with sleeve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320453662.9U CN220038418U (en) | 2023-03-11 | 2023-03-11 | Post-combustion overheat type gas engine waste heat steam injection boiler system with sleeve device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220038418U true CN220038418U (en) | 2023-11-17 |
Family
ID=88738252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320453662.9U Active CN220038418U (en) | 2023-03-11 | 2023-03-11 | Post-combustion overheat type gas engine waste heat steam injection boiler system with sleeve device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220038418U (en) |
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2023
- 2023-03-11 CN CN202320453662.9U patent/CN220038418U/en active Active
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