CN108194203A - A kind of branch's cooling structure for industry gas turbine box-transfer story - Google Patents

A kind of branch's cooling structure for industry gas turbine box-transfer story Download PDF

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Publication number
CN108194203A
CN108194203A CN201711373570.5A CN201711373570A CN108194203A CN 108194203 A CN108194203 A CN 108194203A CN 201711373570 A CN201711373570 A CN 201711373570A CN 108194203 A CN108194203 A CN 108194203A
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CN
China
Prior art keywords
cooling air
cooling
box
branch
gas turbine
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Pending
Application number
CN201711373570.5A
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Chinese (zh)
Inventor
张智博
赵煜
何彬
马正军
张晓云
庄重
李贝贝
杨永波
常春辉
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703th Research Institute of CSIC
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703th Research Institute of CSIC
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Publication date
Application filed by 703th Research Institute of CSIC filed Critical 703th Research Institute of CSIC
Priority to CN201711373570.5A priority Critical patent/CN108194203A/en
Publication of CN108194203A publication Critical patent/CN108194203A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, 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
    • F02C7/12Cooling of plants
    • F02C7/16Cooling of plants characterised by cooling medium
    • F02C7/18Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air

Abstract

The invention belongs to steam turbine equipment technical fields, more particularly to a kind of branch's cooling structure for industry gas turbine box-transfer story, which includes being located at the first cooling air air inlet at top and the second cooling air air inlet, upper plate, two top cooling air gas outlet, two top guide supports, two lower support stents and two lower parts cooling air gas outlet;The section of first cooling air air inlet and the second cooling air air inlet is identical;The section of two top cooling air gas outlet is identical;The section of two lower parts cooling air gas outlet is identical.This structure has cooling air outlets more more than conventional chilling structure, and four cooling air outlets are arranged in box-transfer story multiple and different spaces above and below.Using branch's cooling structure, in the case where not changing even reduction cooling air supply amount, Temperature Distribution in box-transfer story can be improved, reduce temperature of key part, ensure box installed in-vivo device safe operation.

Description

A kind of branch's cooling structure for industry gas turbine box-transfer story
Technical field:
The invention belongs to steam turbine equipment technical fields, and in particular to a kind of branch for industry gas turbine box-transfer story cools down Structure.
Background technology:
Gas turbine is a kind of typical conventional fuel power plant, it has, and small, power is big, light-weight and startup is fast etc. Feature is widely used in the industrial core realm such as aviation, electric power, naval vessel and natural gas transportation.Gas turbine is totally-enclosed Box-transfer story in when running, the hot-air of casing radiation, the convection current of hot surface and flange etc. leakage can make box installed body temperature Drastically increase.According to the actual motion present situation of existing industrial unit, when gas turbine expires operating mode operation, certain industrial combustion gas Turbine box installed is embodied with cooling structure scarce capacity, the temperature drift of cabinets cavity room, in the probe of fire-fighting system, box-transfer story Cable etc. is often because high temperature leads to failure.In addition, for the gas turbine using bifuel system, natural gas system is typically located at Box house, according to the explosive-proof grade requirement of equipment, the operating temperature range of associated satellite equipment and element is no more than 75 DEG C. Therefore, it is necessary to which the cooling structure to box-transfer story optimizes, box-transfer story internal temperature field is made to meet related request.
To box-transfer story(Or heat shield)Research be concentrated mainly on the following aspects:First, carry out stress field and temperature field Conventional analysis, such as contain big et al. the temperature field having studied during 600MW supercritical pressure turbine cold start in heat shield, Stress field and combined stress field have found the position that suffered stress is most concentrated.Second is that the research to babinet sound insulation property, such as Wang Xu Et al. give the related acoustic design parameters of S1A-02 box-transfer stories, and carried out sound insulation calculate;Zhao answers dragon et al. to acoustic hood Insertion loss and the ventilation and heat problem of equipment dissected;Thank Jianping et al. have studied sound insulation body structure set with acoustics Meter method;Cui Ning et al. has carried out the comparative analysis of vibration noise to the exhaust heat shield of two kinds of different materials.Third, to box installed The system research of body exhaust injector, as Li Dongming et al. is determined in influence and injector of the ejector structure to mass ratio of induced-to-inducing air The flow parameter distribution in portion;Li Xueliang et al. is analyzed and has been studied to the specificity analysis of injector;KOURTA.A and KHODADADI.J.M et al. has studied the influence of different jet structure injector performance;Han Yunlei and Shi Cuixia etc. is to combustion peculiar to vessel Gas-turbine exhaust injector has carried out numerical simulation and simulation optimization analysis.In addition, Cui Jianwei et al. is to the gas in box-transfer story Purification techniques has carried out certain research.From open source information, it there is no what is optimized for box-transfer story cooling structure Work.
Gas turbine module common problem is at present:When being cooled down to gas turbine, scarce capacity, only Certain demand can be met, when gas turbine is close to during full operating mode operation, case body temperature is excessively high, especially the meeting of base plate vicinity temperature More than the explosive-proof grade requirement of equipment, there are some potential safety problemss.
Invention content:
The object of the present invention is to provide a kind of branch's cooling structures for industry gas turbine box-transfer story, are cooled down using the branch Structure in the case where not changing even reduction cooling air supply amount, can improve Temperature Distribution in box-transfer story, reduce key portion Position temperature, ensures box installed in-vivo device safe operation.
The technical solution adopted by the present invention is:A kind of branch's cooling structure for industry gas turbine box-transfer story, this point Branch cooling structure is included positioned at the first cooling air air inlet at top and the second cooling air air inlet, upper plate, on two Portion cooling air gas outlet, two top guide supports, two lower support stents and two lower parts cooling air gas outlet.
Further, the section of the first cooling air air inlet and the second cooling air air inlet is identical.
Further, the section of described two top cooling air gas outlets is identical.
Further, the section of described two lower part cooling air gas outlets is identical
Beneficial effects of the present invention:Conventional box-transfer story cooling structure is only slotted on top, and cooling air full and uniform can not flow To box-transfer story everywhere.This structure has cooling air outlets more more than conventional chilling structure, and four cooling air outlets Box-transfer story multiple and different spaces above and below are arranged in, cooling caused by technically solving conventional chilling structure is insufficient The problem of.Using branch's cooling structure, in the case where not changing even reduction cooling air supply amount, box-transfer story can be improved Interior Temperature Distribution reduces temperature of key part, ensures box installed in-vivo device safe operation.
Description of the drawings:
Fig. 1 the structural representation of present invention;
Fig. 2 is the schematic diagram that the present invention applies in gas turbine module.
Specific embodiment:
With reference to Fig. 1, a kind of branch's cooling structure for industry gas turbine box-transfer story, branch's cooling structure includes being located at top The first cooling air air inlet 1 and the second cooling air air inlet 3,2, two top of upper plate cooling air gas outlet 4, two A 5, two lower support stents 6 of top guide support and two lower parts cooling air gas outlet 7;First cooling air into Gas port 1 is identical with the section of the second cooling air air inlet 3;The section of described two top cooling air gas outlets 4 is identical;Institute The section for stating two lower parts cooling air gas outlet 7 is identical.
Branch's cooling structure for industry gas turbine box-transfer story uses branched form, by cooling air air inlet Mouth, branch stent, cooling air gas outlet are formed.Cooling air air inlet is made of the section of two area equations, ensure from The air mass flow that cooling air air inlet enters cooling structure is equal;Branch stent is by top guide support 5 and lower support branch Frame 6 forms, and there are inner flow passage, top guide support 5 is cold for cooling air to be guided from cooling air air inlet to flow to top But air outlet and lower support stent 6, lower support stent 6 are used to bear the weight of entire cooling structure, and draw Cooling air is led to flow out through lower part cooling air gas outlet;There are four cooling air gas outlets, is divided into top cooling air outlet Mouthful and two groups of lower part cooling air gas outlet, every group of section by two area equations form, for will be in branch's cooling structure Cooling air draw and blow to industry gas turbine box-transfer story.To improve Temperature Distribution in box-transfer story, reduce key position temperature Degree ensures box installed in-vivo device safe operation.
As shown in Fig. 2, branch's cooling structure 8 is mounted in gas turbine module 9, this structure has than conventional chilling The more cooling air outlets of structure, and four cooling air outlets are arranged in box-transfer story multiple and different spaces above and below. Cooling air enters from the cooling air gas outlet for being distributed in 9 different location of gas turbine module, can be formed in box-transfer story Spatial mixing air-flow reduces box installed body temperature, and insufficient ask is cooled down caused by technically solving conventional chilling structure Topic, it is ensured that the safe and stable operation of gas turbine 10 and other electrical equipments.
Rectangular channel is opened at 9 top of industry gas turbine box-transfer story, area is upper plate 2 and two cooling air air inlets The sum of, and shape is identical with the compound section of above-mentioned two structure.Cooling air is fed from box-transfer story 9 is outer by cooling blower, from Two cooling air air inlets on 2 side of upper plate enter, and when flowing through top guide support 5, a part of cooling air is from two Top cooling air gas outlet 4 flows out into 9 upper space of gas turbine module.Remaining cooling air is through lower support branch The inner hollow runner of frame 6 flows downward, and the box-transfer story of gas turbine is flowed out into from two lower parts cooling air gas outlet 7 9 lower spaces.The above-mentioned cooling air into industry gas turbine box-transfer story 9 can form space in multiple positions in box-transfer story Mixed airflow reduces box installed body temperature, ensures gas turbine and other electrical equipment safe and stable operations.

Claims (4)

1. a kind of branch's cooling structure for industry gas turbine box-transfer story, it is characterised in that:Branch's cooling structure includes The first cooling air air inlet positioned at top(1)With the second cooling air air inlet(3), upper plate(2), two top coolings Air outlet(4), two top guide supports(5), two lower support stents(6)And two lower parts cooling air gas outlet (7).
2. a kind of branch's cooling structure for industry gas turbine box-transfer story according to claim 1, it is characterised in that: The first cooling air air inlet(1)With the second cooling air air inlet(3)Section it is identical.
3. a kind of branch's cooling structure for industry gas turbine box-transfer story according to claim 1, it is characterised in that: Described two top cooling air gas outlets(4)Section it is identical.
4. a kind of branch's cooling structure for industry gas turbine box-transfer story according to claim 1, it is characterised in that: Described two lower part cooling air gas outlets(7)Section it is identical.
CN201711373570.5A 2017-12-19 2017-12-19 A kind of branch's cooling structure for industry gas turbine box-transfer story Pending CN108194203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711373570.5A CN108194203A (en) 2017-12-19 2017-12-19 A kind of branch's cooling structure for industry gas turbine box-transfer story

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711373570.5A CN108194203A (en) 2017-12-19 2017-12-19 A kind of branch's cooling structure for industry gas turbine box-transfer story

Publications (1)

Publication Number Publication Date
CN108194203A true CN108194203A (en) 2018-06-22

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Country Status (1)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5000005A (en) * 1988-08-17 1991-03-19 Rolls-Royce, Plc Combustion chamber for a gas turbine engine
US20070249279A1 (en) * 2006-04-20 2007-10-25 Ranjit Jangili System and apparatus for enclosing equipment
US20080127652A1 (en) * 2004-12-16 2008-06-05 Heinrich Putz Heat Shield Element
CN201236746Y (en) * 2008-07-25 2009-05-13 中国船舶重工集团公司第七○三研究所 Air-intake atomizing type vaporization cooling and wet compression system of gas turbine
JP2012047181A (en) * 2011-10-31 2012-03-08 Mitsubishi Heavy Ind Ltd Gas turbine combustor and gas turbine
US20120117973A1 (en) * 2010-11-17 2012-05-17 Rolls-Royce Deutschland Ltd & Co Kg Gas-turbine combustion chamber with a cooling-air supply device
US20150345400A1 (en) * 2012-12-29 2015-12-03 United Technologies Corporation Frame junction cooling holes
CN107076416A (en) * 2014-08-26 2017-08-18 西门子能源公司 Film cooling aperture apparatus for the acoustic resonator in gas-turbine unit
CN207554199U (en) * 2017-12-19 2018-06-29 中国船舶重工集团公司第七0三研究所 A kind of branch's cooling structure for industry gas turbine box-transfer story

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5000005A (en) * 1988-08-17 1991-03-19 Rolls-Royce, Plc Combustion chamber for a gas turbine engine
US20080127652A1 (en) * 2004-12-16 2008-06-05 Heinrich Putz Heat Shield Element
US20070249279A1 (en) * 2006-04-20 2007-10-25 Ranjit Jangili System and apparatus for enclosing equipment
CN201236746Y (en) * 2008-07-25 2009-05-13 中国船舶重工集团公司第七○三研究所 Air-intake atomizing type vaporization cooling and wet compression system of gas turbine
US20120117973A1 (en) * 2010-11-17 2012-05-17 Rolls-Royce Deutschland Ltd & Co Kg Gas-turbine combustion chamber with a cooling-air supply device
JP2012047181A (en) * 2011-10-31 2012-03-08 Mitsubishi Heavy Ind Ltd Gas turbine combustor and gas turbine
US20150345400A1 (en) * 2012-12-29 2015-12-03 United Technologies Corporation Frame junction cooling holes
CN107076416A (en) * 2014-08-26 2017-08-18 西门子能源公司 Film cooling aperture apparatus for the acoustic resonator in gas-turbine unit
CN207554199U (en) * 2017-12-19 2018-06-29 中国船舶重工集团公司第七0三研究所 A kind of branch's cooling structure for industry gas turbine box-transfer story

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
张勃;李继保;吉洪湖;尚守堂;程明;王艳丽;: "冲击-多斜孔壁复合冷却中冲击孔与多斜孔面积比对换热特性的影响", 航空动力学报, no. 10, pages 2235 - 2240 *
张智博;张晓云;李贝贝;孙鹏;: "某工业型燃气轮机箱装体冷却结构优化设计", 热科学与技术, no. 05, pages 424 - 430 *

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