CN113153527A - Improved IBH system of H-25 gas turbine generator set - Google Patents
Improved IBH system of H-25 gas turbine generator set Download PDFInfo
- Publication number
- CN113153527A CN113153527A CN202011524804.3A CN202011524804A CN113153527A CN 113153527 A CN113153527 A CN 113153527A CN 202011524804 A CN202011524804 A CN 202011524804A CN 113153527 A CN113153527 A CN 113153527A
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- China
- Prior art keywords
- air
- gas turbine
- pipe bundle
- icing
- air guide
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/047—Heating to prevent icing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/24—Heat or noise insulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/16—Control of working fluid flow
- F02C9/18—Control of working fluid flow by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages
Abstract
The invention belongs to the technical field of gas turbine generator sets, and particularly relates to an improved H-25 gas turbine generator set IBH system. The original air entraining pipe bundle is arranged in the air inlet channel behind the air inlet silencer, so that the air supply flow of the original IBH pipe bundle (main air channel) is greatly reduced, the air inlet anti-icing under the low-temperature environment is ensured, the total air entraining flow is kept to stably discharge and adjust, the noise level of the whole set of system device during working is reduced, and the aim of reducing the working noise of the system under the condition of ensuring that the total air entraining amount of the gas turbine is not changed is fulfilled.
Description
Technical Field
The invention belongs to the technical field of gas turbine generator sets, and particularly relates to an improved H-25 gas turbine generator set IBH system.
Background
At present, because the temperature is lower in winter in part of project areas and the emission requirement of a gas turbine unit is strict, an IBH system is required to be equipped for an H-25 type gas turbine generator unit. However, although the original IBH system can meet the requirements of anti-icing and emission regulation, so that the emission condition of the unit in a low working condition range is improved, the working noise reaches 120 db, and the noise level not higher than 85 db, which is generally required in the field of industrial power generation in China, cannot be met.
Disclosure of Invention
The invention aims to provide an improved IBH system of an H-25 gas turbine generator set, which can not only keep the total bleed air flow to stabilize the emission regulation, but also reduce the noise level of the whole set of system devices during working while ensuring the air intake and anti-icing in a low-temperature environment.
The purpose of the invention is realized by the following technical scheme: the integral air-conditioning device is integrally arranged in the silencing box body and comprises an anti-icing air guide path and a discharge adjusting air guide path; the anti-icing bleed air passage comprises a first flow regulating valve 32, a first in-situ pressure gauge 33, a first reducer 34 and an anti-icing bleed air pipe bundle; the discharge adjusting air-guiding path comprises a second on-site pressure gauge 35, a second flow adjusting valve 36, a third on-site pressure gauge 37, a second reducer 38 and a discharge adjusting air-guiding pipe bundle 40; the anti-icing air guide pipe bundle and the discharge adjusting air guide pipe bundle 40 are integrally arranged in an air inlet chamber, and the air inlet chamber is connected with the air inlet end of the gas turbine; one end of the first flow regulating valve 32 is connected with a bleed air outlet 31 of the gas turbine through a pipeline, and the other end of the first flow regulating valve is sequentially connected with the input ends of a first in-situ pressure gauge 33 and a first reducer 34 through pipelines; the output end of the first reducer 34 is connected with an anti-icing bleed air pipe bundle in the air inlet chamber through a pipeline; the anti-icing air guide pipe bundle comprises 5 branch pipes of 3 inches, 12 anti-icing air guide nozzles 39 are uniformly arranged on each branch pipe of 3 inches in the vertical direction, and a silencing unit is arranged at the end part of each anti-icing air guide nozzle 39; one end of the second on-site pressure gauge 35 is connected with the bleed air outlet 31 of the gas turbine through a pipeline, and the other end of the second on-site pressure gauge is sequentially connected with the input ends of the regulating valve 36, the third on-site pressure gauge 37 and the second reducer 38 through pipelines; the output end of the second reducer 38 is connected with a discharge adjusting bleed air pipe bundle 40 in the air inlet chamber through a pipeline; the discharge adjusting bleed air tube bundle 40 comprises 16 nozzle tube bundles of 5 inches, and 132 nozzle tube bundles of 5 inches are arranged on each nozzle tube bundle
And ejecting the hole.
The invention has the beneficial effects that:
the invention adjusts two paths of bleed air flow by improving the original IBH system of the H-25 gas turbine generator set, ensures air inlet and anti-icing in a low-temperature environment, keeps the total bleed air flow to stabilize discharge adjustment and reduces the noise level of the whole set of system device during working.
Drawings
FIG. 1 is a meter flow chart of a conventional H-25 gas turbine generator set IBH system.
FIG. 2 is a meter flow diagram of an improved H-25 gas turbine generator set IBH system of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention belongs to the field of H-25 gas turbine generator sets, and particularly relates to an improved IBH system of an H-25 gas turbine generator set.
At present, because the temperature is lower in winter in part of project areas and the emission requirement of a gas turbine unit is strict, an IBH system is required to be equipped for an H-25 type gas turbine generator unit. However, although the original IBH system can meet the requirements of anti-icing and emission regulation, so that the emission condition of the unit in a low working condition range is improved, the working noise reaches 120 db, and the noise level not higher than 85 db, which is generally required in the field of industrial power generation in China, cannot be met.
As shown in fig. 1, the conventional H-25 gas turbine 1 is placed in a sound-deadening tank package 2, and the front end thereof is connected to an intake duct 3 and the rear end thereof is connected to an exhaust expansion section 4 and an exhaust duct 5. The IBH system converges to a main bleed air pipe 8 from an outlet of an H-25 type gas turbine compressor through 4 bleed air points 6 uniformly distributed in a circle and through reducing of 4 large and small heads 7, an on-site pressure gauge 9 is used for measuring bleed air pressure in front of an anti-icing bleed air control valve 10, a large and small head 11 completes reducing of a bleed air pipeline, and an on-site pressure gauge 12 and an on-site thermometer 13 are used for measuring pressure and temperature behind the control valve. The high-temperature bleed air is connected with a pipeline outside the box body through a connector 14 outside the box body, and then sequentially passes through a hose 15, large and small heads 16 and 18 and a silencer 17. The bleed manifold is bifurcated 19 and 20 in the upper portion of the inlet chamber. Each path passes through reducer heads 21 and 22, orifice plates 23 and 24, respectively, and then into bleed air nozzle manifold 28. Temporary pressure measuring points 25, 36 and 27 are arranged in front of and behind the orifice plate on one branch and are used for monitoring the pressure in front of and behind the orifice plate in the debugging process and calculating the flow of the bleed air. The high temperature gas from the nozzle enters the inlet chamber 29 and passes through the silencer 30 to enter the gas turbine.
Therefore, the IBH system of the original H-25 type gas turbine generator set is improved, the original air-entraining is divided into two paths, one path is arranged in front of the air-intake filter element and used for preventing the air intake from freezing under the low-temperature condition, and the other path is arranged in the air-intake passage behind the air-intake silencer. The method greatly reduces the air supply flow of the original IBH tube bundle (main air path), and achieves the purpose of reducing the working noise of the system under the condition of ensuring that the total air entraining quantity of the slave gas turbine is not changed.
An improved IBH system of an H-25 gas turbine generator set is integrally arranged in a silencing box body and comprises an anti-icing air guide path and an emission regulation air guide path; the anti-icing bleed air passage comprises a first flow regulating valve 32, a first in-situ pressure gauge 33, a first reducer 34 and an anti-icing bleed air pipe bundle; the discharge adjusting air-guiding path comprises a second on-site pressure gauge 35, a second flow adjusting valve 36, a third on-site pressure gauge 37, a second reducer 38 and a discharge adjusting air-guiding pipe bundle 40; the anti-icing air guide pipe bundle and the discharge adjusting air guide pipe bundle 40 are integrally arranged in an air inlet chamber, and the air inlet chamber is connected with the air inlet end of the gas turbine;
one end of the first flow regulating valve 32 is connected with a bleed air outlet 31 of the gas turbine through a pipeline, and the other end of the first flow regulating valve is sequentially connected with the input ends of a first in-situ pressure gauge 33 and a first reducer 34 through pipelines; the output end of the first reducer 34 is connected with an anti-icing bleed air pipe bundle in the air inlet chamber through a pipeline; the anti-icing air guide pipe bundle comprises 5 branch pipes of 3 inches, 12 anti-icing air guide nozzles 39 are uniformly arranged on each branch pipe of 3 inches in the vertical direction, and the end part of each anti-icing air guide nozzle 39 is provided with a silencing unit for reducing the discharge noise of the nozzle during working;
one end of the second on-site pressure gauge 35 is connected with the bleed air outlet 31 of the gas turbine through a pipeline, and the other end of the second on-site pressure gauge is sequentially connected with the regulating valve 36, the third on-site pressure gauge 37 and the second reducer 38 through pipelinesThe input ends are connected; the output end of the second reducer 38 is connected with a discharge adjusting bleed air pipe bundle 40 in the air inlet chamber through a pipeline; the discharge adjusting bleed air tube bundle 40 comprises 16 nozzle tube bundles of 5 inches, and 132 nozzle tube bundles of 5 inches are arranged on each nozzle tube bundle
And the total number of the injection holes is 132 × 16 ═ 2112.
The invention has the characteristic of flexible use, can actively adjust the distribution quantity of bleed air of the H-25 type gas turbine IBH system, not only can meet the requirements of air intake and anti-icing in winter, but also can meet the adjustment index of unit emission within the allowable noise range.
In order to solve the problem that the working noise level of the original IBH system does not reach the standard, the invention designs two paths of bleed air of an anti-icing bleed air passage and a discharge regulation bleed air passage, and parts such as a regulating valve, an on-site pressure gauge, a large head and a small head on each path. The invention adjusts two paths of bleed air flow by improving the original IBH system of the H-25 gas turbine generator set, ensures air inlet and anti-icing in a low-temperature environment, keeps the total bleed air flow to stabilize discharge adjustment and reduces the noise level of the whole set of system device during working.
In order to ensure that the total air entrainment volume of the two air paths is the same as the working air entrainment volume of the IBH system before improvement, the air entrainment volumes in the two air paths need to be reasonably distributed by adjusting flow regulating valves on the two air paths in the debugging process.
The improved IBH system is subjected to numerical simulation through one-dimensional fluid software, and the opening degrees of the two gas path flow regulating valves and the pressure conditions in front of and behind the flow regulating devices on the two gas paths at a relatively ideal working point are obtained preliminarily. In the debugging process, the flow regulating valves in the two gas paths are continuously regulated by taking various parameters obtained by numerical simulation as starting points, and the pressure change conditions on the two gas paths are observed. And finally, determining the position of the flow regulating valve according to the change of the unit emission level under specific working conditions. If the emission control point changes when the environmental conditions change significantly, fine tuning can be performed according to the new environmental conditions to achieve the best adjustment effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. An improved H-25 gas turbine generator set IBH system is integrally arranged in an anechoic box body, and is characterized in that: comprises an anti-icing air guide path and a discharge adjusting air guide path; the anti-icing air-entraining passage comprises a first flow regulating valve (32), a first on-site pressure gauge (33), a first reducer (34) and an anti-icing air-entraining pipe bundle; the discharge adjusting air guide channel comprises a second on-site pressure gauge (35), a second flow adjusting valve (36), a third on-site pressure gauge (37), a second reducer (38) and a discharge adjusting air guide pipe bundle (40); the anti-icing air guide pipe bundle and the discharge adjusting air guide pipe bundle (40) are integrally arranged in an air inlet chamber, and the air inlet chamber is connected with the air inlet end of the gas turbine; one end of the first flow regulating valve (32) is connected with a bleed air outlet (31) of the gas turbine through a pipeline, and the other end of the first flow regulating valve is sequentially connected with a first on-site pressure gauge (33) and the input end of a first reducer (34) through pipelines; the output end of the first reducer (34) is connected with an anti-icing air-entraining pipe bundle in the air inlet chamber through a pipeline; the anti-icing air guide pipe bundle comprises 5 branch pipes of 3 inches, 12 anti-icing air guide nozzles (39) are uniformly arranged on each branch pipe of 3 inches in the vertical direction, and the end part of each anti-icing air guide nozzle (39) is provided with a silencing unit; one end of the second on-site pressure gauge (35) is connected with a bleed air outlet (31) of the gas turbine through a pipeline, and the other end of the second on-site pressure gauge is sequentially connected with an adjusting valve (36), a third on-site pressure gauge (37) and the input end of a second reducer (38) through pipelines; the output end of the second reducer (38) is connected with a discharge adjusting bleed air pipe bundle (40) in the air inlet chamber through a pipeline; the discharge adjusting air guide pipe bundle (40) comprises 16 5-inch nozzle pipe bundles, and 132 nozzle pipes are arranged on each 5-inch nozzle pipe bundle
And ejecting the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524804.3A CN113153527A (en) | 2020-12-22 | 2020-12-22 | Improved IBH system of H-25 gas turbine generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011524804.3A CN113153527A (en) | 2020-12-22 | 2020-12-22 | Improved IBH system of H-25 gas turbine generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113153527A true CN113153527A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011524804.3A Pending CN113153527A (en) | 2020-12-22 | 2020-12-22 | Improved IBH system of H-25 gas turbine generator set |
Country Status (1)
| Country | Link |
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| CN (1) | CN113153527A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320606A (en) * | 2021-12-13 | 2022-04-12 | 中国船舶重工集团公司第七0三研究所 | Automatic H-25 gas turbine generating set IBH device of adjusting |
| EP4134532A1 (en) * | 2021-08-12 | 2023-02-15 | General Electric Company | System and method for controlling low pressure recoup air in gas turbine engine |
| CN115875134A (en) * | 2022-11-29 | 2023-03-31 | 哈尔滨理工大学 | Gas turbine bleed air mixing nozzle and noise elimination method |
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| CN101660449A (en) * | 2008-08-28 | 2010-03-03 | 通用电气公司 | Filtration system for gas turbines |
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| CN208633923U (en) * | 2017-03-21 | 2019-03-22 | 通用电气公司 | Suction port of compressor shell |
| CN209385239U (en) * | 2019-01-07 | 2019-09-13 | 江苏风行动力科技有限公司 | A kind of noise reduction heated nozzle of the anti-icing wet prevention apparatus of gas turbine inlet air |
| CN210751685U (en) * | 2019-06-11 | 2020-06-16 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Gas turbine inlet filter screen humidification blowback's system |
| CN211777723U (en) * | 2019-11-15 | 2020-10-27 | 中国船舶工业系统工程研究院 | Gas-entraining anti-icing device of marine gas turbine |
-
2020
- 2020-12-22 CN CN202011524804.3A patent/CN113153527A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660449A (en) * | 2008-08-28 | 2010-03-03 | 通用电气公司 | Filtration system for gas turbines |
| CN103573413A (en) * | 2012-07-19 | 2014-02-12 | 中国石油天然气股份有限公司 | Gas turbine energy saving type incoming gas anti-icing apparatus |
| CN208633923U (en) * | 2017-03-21 | 2019-03-22 | 通用电气公司 | Suction port of compressor shell |
| CN209385239U (en) * | 2019-01-07 | 2019-09-13 | 江苏风行动力科技有限公司 | A kind of noise reduction heated nozzle of the anti-icing wet prevention apparatus of gas turbine inlet air |
| CN210751685U (en) * | 2019-06-11 | 2020-06-16 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | Gas turbine inlet filter screen humidification blowback's system |
| CN211777723U (en) * | 2019-11-15 | 2020-10-27 | 中国船舶工业系统工程研究院 | Gas-entraining anti-icing device of marine gas turbine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4134532A1 (en) * | 2021-08-12 | 2023-02-15 | General Electric Company | System and method for controlling low pressure recoup air in gas turbine engine |
| US11643966B2 (en) | 2021-08-12 | 2023-05-09 | General Electric Company | System and method for controlling low pressure recoup air in gas turbine engine |
| CN114320606A (en) * | 2021-12-13 | 2022-04-12 | 中国船舶重工集团公司第七0三研究所 | Automatic H-25 gas turbine generating set IBH device of adjusting |
| CN115875134A (en) * | 2022-11-29 | 2023-03-31 | 哈尔滨理工大学 | Gas turbine bleed air mixing nozzle and noise elimination method |
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Application publication date: 20210723 |