CN114942143B - Gas turbine test bed air inlet and exhaust system - Google Patents
Gas turbine test bed air inlet and exhaust system Download PDFInfo
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- CN114942143B CN114942143B CN202210497255.8A CN202210497255A CN114942143B CN 114942143 B CN114942143 B CN 114942143B CN 202210497255 A CN202210497255 A CN 202210497255A CN 114942143 B CN114942143 B CN 114942143B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/14—Testing gas-turbine engines or jet-propulsion engines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses an air inlet and exhaust system of a gas turbine test bed, which relates to the technical field of gas turbine test bed tests and comprises a gas turbine air inlet and air inlet system and a gas turbine air exhaust system which are respectively arranged at two ends of a test bed; the gas turbine air inlet system comprises a gas turbine air inlet system and a test bed air inlet system, wherein the gas turbine air inlet system and the test bed air inlet system are respectively provided with a gas filtering device, a gas dewatering device and an air inlet noise reduction device; the gas turbine exhaust system is provided with an exhaust noise reduction device. The gas turbine test bed air inlet and outlet system provided by the invention can be used for silencing and insulating sound, so that noise is reduced.
Description
Technical Field
The invention relates to the technical field of gas turbine test bed tests, in particular to an air inlet and outlet system of a gas turbine test bed.
Background
The application of the gas turbine is very wide, and the gas turbine test bed test technology is an important ring in the research, the production and the maintenance of the gas turbine, and is an indispensable key step in the production process of the gas turbine through each link of the life cycle of the gas turbine, so that the success or failure of the ground test research is crucial to the application of one gas turbine.
The gas is required to circulate in the test bed of the gas turbine, and certain noise can be generated in the test process. Noise can affect the physical and mental health of the human body. People work for a long time and live in a high noise environment, the stimulation to the central nervous system of the human body is large, and serious people can cause dysfunction of the central nervous system. The gas turbine is operated with about 140dB (A) of noise. The existing gas turbine test bed air inlet and outlet system does not have a silencing function and cannot guarantee normal work and life of gas turbine test bed personnel and outside the test bed, so that the gas turbine test bed air inlet and outlet system with the noise reduction function needs to be developed for physical and mental health of the personnel.
Disclosure of Invention
The invention aims to provide an air inlet and outlet system of a gas turbine test bed, which solves the problems in the prior art and can reduce noise and sound.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides an air inlet and exhaust system of a gas turbine test bed, which comprises a gas turbine air inlet and air inlet system and a gas turbine air exhaust system which are respectively arranged at two ends of a test bed; the gas turbine air inlet system comprises a gas turbine air inlet system and a test bed air inlet system, wherein the gas turbine air inlet system and the test bed air inlet system are respectively provided with a gas filtering device, a gas dewatering device and an air inlet noise reduction device; the gas turbine exhaust system is provided with an exhaust noise reduction device.
Optionally, the gas filtering device of the gas turbine air inlet system comprises a gas turbine air inlet filtering chamber fixedly arranged on a gas turbine air inlet system bracket, one side of the gas turbine air inlet filtering chamber is communicated with the outside, the other side of the gas turbine air inlet filtering chamber is communicated with a gas turbine air inlet switching section, the gas turbine air inlet switching section is sequentially connected with a gas turbine air inlet flow pipe, a gas turbine air inlet elbow, a gas turbine air inlet flexible connecting part and a gas turbine air inlet volute in series, the gas turbine air inlet elbow and the air inlet volute are welded and formed by stainless steel plates, and the cleanliness and the safety of gas turbine air inlet are ensured; the gas dewatering device of the gas turbine air inlet system is arranged on one side of the gas turbine air inlet filtering chamber communicated with the outside, and the air inlet noise reduction device of the gas turbine air inlet system is arranged on one side of the gas turbine air inlet filtering chamber close to the gas turbine air inlet switching section. The gas turbine inlet flow tube is made of twisted wire profile stainless steel. Seven stages of profile machining precision and 0.8 of surface roughness. Four wall static pressures and four wall total pressures are uniformly distributed on the cross section in the circumferential direction, each point of wall static pressure total pressure is measured by a respective pressure sensor, the static pressure unevenness is not more than 1%, and the four wall total pressures are provided with total pressure probes. The measurement precision of the flow measurement component is +/-0.5%, and the air inlet flow tube is put into use after strict test and calibration.
Optionally, the gas dewatering device of the gas turbine air intake system is a gas turbine air intake dewatering device fixedly arranged on one side of the gas turbine air intake filtering chamber communicated with the outside, a gas turbine air intake canopy with an inclined top and an open bottom is fixedly communicated with the outer side of the gas turbine air intake dewatering device, and a gas turbine air intake insect-proof net is fixedly arranged at the open bottom end of the gas turbine air intake canopy.
Optionally, a gas turbine inlet primary filter and a gas turbine inlet back-flushing high-efficiency filter are sequentially arranged in the gas turbine inlet filter chamber; the air intake noise reduction device of the air intake system of the gas turbine is a gas turbine air intake silencer arranged between the air intake back-blowing efficient filter of the gas turbine and the air intake switching section of the gas turbine. The gas turbine inlet filter chamber is formed by welding steel plates and steel plate reinforcing ribs, a rectangular pipe section welding forming frame is arranged at the front end of the gas turbine inlet filter chamber, and gas turbine inlet primary filters are respectively mounted in the frame through bolts. The back end of the interior is provided with a flower plate mounting plate and a filter frame, and the gas turbine air inlet back-blowing high-efficiency filter is mounted on the flower plate and fixed by the filter frame.
Optionally, the gas filtering device of the test bed air inlet system comprises a test bed air inlet filtering chamber fixedly arranged on a gas turbine air inlet system bracket, one side of the test bed air inlet filtering chamber is communicated with the outside, the other side of the test bed air inlet filtering chamber is communicated with a test bed air inlet switching section, a test bed air inlet fan communicated with the interior of the test bed is arranged in the test bed air inlet switching section, the test bed air inlet fan is provided with a frequency converter, and the test bed air inlet fan can operate in a variable flow manner and can meet the working conditions of test runs of different fuel machines; the gas dewatering device of the test bed air inlet system is arranged on one side of the test bed air inlet filter chamber communicated with the outside, and the air inlet noise reduction device of the test bed air inlet system is arranged on one side of the test bed air inlet filter chamber close to the test bed air inlet switching section.
Optionally, the gas dewatering device of the test bed air inlet system is a test bed air inlet dewatering device fixedly arranged on one side of the test bed air inlet filtering chamber communicated with the outside, the gas turbine air inlet dewatering device and the test bed air inlet dewatering device are both formed by stainless steel blades manufactured by using a die and frames welded by bending plates, the outer side of the test bed air inlet dewatering device is fixedly communicated with a test bed air inlet rain shed with an inclined top and an open bottom, and a test bed air inlet insect-proof net is fixedly arranged at the open bottom end of the test bed air inlet rain shed; the gas turbine air inlet canopy and the test bed air inlet canopy are formed by welding steel plates, and the periphery of the insect-proof net is connected below an air inlet of the canopy through bolts.
Optionally, the test bed air inlet filter chamber is provided with a test bed air inlet primary filter, and the air inlet noise reduction device of the test bed air inlet system is a test bed air inlet silencer arranged between the test bed air inlet primary filter and the test bed air inlet switching section. The gas turbine air inlet silencer and the test bed air inlet silencer are formed by arranging a plurality of silencing folded plate units, the silencing units are formed by welding stainless steel perforated plates and stainless steel plates and are filled with sound-absorbing porous material layers, and the sound-absorbing porous material layers are formed by wrapping glass fiber cotton with glass fiber cloth. The test bed air inlet filter chamber is similar to the structure of the gas turbine air inlet filter chamber, is also formed by welding steel plates and steel plate reinforcing ribs, is internally provided with a layer of rectangular pipe section welding forming frame, and is internally provided with a test bed air inlet primary filter by bolts.
Optionally, the gas turbine exhaust and exhaust system comprises a gas turbine exhaust primary injection cylinder and a gas turbine exhaust secondary injection cylinder which are connected in series, wherein the opening end of the gas turbine exhaust primary injection cylinder is positioned at the position close to the gas turbine in the test room, the exhaust primary injection cylinder consists of an inner cylinder and an outer cylinder, and is formed by welding after being rolled by a steel plate, wherein the inner cylinder can move forwards and can adjust the exhaust injection quantity, the gas turbine exhaust secondary injection cylinder can further perform exhaust injection, and the maximum injection quantity under the shortest distance is achieved; one end of the gas turbine exhaust secondary injection cylinder, which is far away from the gas turbine exhaust primary injection cylinder, is connected with a gas turbine exhaust expansion section, one end of the gas turbine exhaust expansion section, which is larger in opening cross section area, is connected with a vertically arranged gas turbine exhaust straight flue section through a gas turbine exhaust elbow, and a gas turbine exhaust rain cap is arranged at the top of the gas turbine exhaust straight flue section; the exhaust noise reduction device of the gas turbine exhaust system is a gas turbine exhaust silencer, and the gas turbine exhaust silencer is arranged at one end, close to the gas turbine exhaust rain cap, in the gas turbine exhaust straight flue section. The gas turbine exhaust secondary injection cylinder, the gas turbine exhaust expansion section, the gas turbine exhaust elbow, the gas turbine exhaust straight flue section and the gas turbine exhaust silencer structurally adopt an internal heat preservation and heat preservation nail structure, and the heat preservation nail can effectively solve the problem of thermal expansion and greatly reduce thermal stress. The heat preservation nail structure comprises a connecting screw rod welded with the inner wall of the outer plate, a bottom welding nut, a bottom gasket, an upper gasket and an upper welding nut.
Optionally, a gas turbine exhaust guide vane is arranged in the gas turbine exhaust elbow; the outside of the gas turbine exhaust straight flue section is provided with a gas turbine exhaust measurement platform, and the gas turbine exhaust measurement platform is provided with a guardrail and a ladder stand.
Optionally, a platform guardrail of the gas turbine air inlet and air inlet system is arranged on the outer side of the gas turbine air inlet and air inlet system; the sound insulation interlayer is arranged on the outer side of the gas turbine air inlet silencer and comprises a steel plate, a supporting piece, a sound absorption porous material layer and a perforated plate which are sequentially and fixedly connected, and the sound absorption porous material layer is formed by wrapping glass silk floss with glass silk floss.
Compared with the prior art, the invention has the following technical effects:
the gas turbine test bed air inlet and exhaust system consists of the gas turbine air inlet system and the gas turbine air exhaust system, and has the characteristics of good silencing effect, good sound insulation effect, convenience in processing and environmental protection; the gas turbine exhaust silencer has good silencing effect and can effectively prevent noise emission at the exhaust end of the gas turbine.
The gas turbine inlet dehydrator, the gas turbine inlet filter chamber, the gas turbine inlet primary filter, the gas turbine inlet blowback high-efficiency filter, the test bed inlet dehydrator, the test bed inlet air filter chamber and the test bed inlet primary filter in the gas turbine inlet air inlet system have the advantages of air filtering, air dehydrating and convenient maintenance. The gas turbine air inlet back-blowing efficient filter can ensure long-time test run and operation of the gas turbine; the gas turbine air inlet silencer has good silencing effect, and can effectively prevent noise emission at the air inlet end of the gas turbine; the test bed air inlet silencer has good silencing effect, and can effectively prevent noise emission at the air inlet end of the test bed; the gas turbine inlet flow tube has the function of measuring the gas turbine inlet flow, and ensures the development and maintenance of the gas turbine; the test bed air inlet fan in the test bed air inlet switching section is provided with the frequency converter, can operate with variable flow, and can meet the test run of different combustion engines under different outdoor temperature conditions; according to the invention, the crane beam is arranged outside the gas turbine inlet filter chamber, so that the filter, the fan and the flow tube can be conveniently replaced and maintained; the gas turbine air inlet system bracket has enough strength and can resist wind load, snow load and earthquake load; the gas turbine exhaust measurement platform, the guardrail and the cat ladder can be used for maintaining and using a CEMC smoke on-line monitoring system; the gas turbine exhaust secondary injection cylinder can achieve maximum injection quantity under a shorter exhaust length; the exhaust guide vane of the gas turbine greatly reduces exhaust resistance, improves injection quantity and reduces exhaust temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a gas turbine test bed air intake and exhaust system of the present invention;
FIG. 2 is a top view of the gas turbine test bed air intake and exhaust system of the present invention;
FIG. 3 is a cross-sectional view A-A of the gas turbine test stand air intake and exhaust system of the present invention;
FIG. 4 is a B-B cross-sectional view of the gas turbine test stand intake and exhaust system of the present invention;
FIG. 5 is a C-C cross-sectional view of the gas turbine test stand intake and exhaust system of the present invention;
reference numerals illustrate: 1. an air inlet system of the gas turbine; 2. an exhaust system of the gas turbine; 1-1, a gas turbine inlet canopy; 1-2, an air inlet insect-proof net of a gas turbine; 1-3, a gas turbine inlet dehydrator; 1-4, a gas turbine inlet filter chamber; 1-5, an air inlet primary filter of a gas turbine; 1-6, an air inlet back-blowing high-efficiency filter of a gas turbine; 1-7, a gas turbine inlet silencer; 1-8, an air inlet switching section of the gas turbine; 1-9, gas turbine inlet flow tubes; 1-10, an air inlet switching section of a test bed; 1-11, an air inlet fan of a test bed; 1-12, a test bed air inlet silencer; 1-13, an air inlet filter chamber of a test bed; 1-14, a test bed air inlet primary filter; 1-15, an air inlet dehydrator of a test bed; 1-16, a test bed air inlet canopy; 1-17, an air inlet insect-proof net of a test bed; 1-18, an air inlet elbow of a gas turbine; 1-19, a gas turbine air inlet flexible connection part; 1-20, an air inlet system bracket of a gas turbine; 1-21, a platform guardrail of an air inlet and air inlet system of a gas turbine; 2-1, exhausting a primary injection cylinder of the gas turbine; 2-2, exhausting a secondary injection cylinder of the gas turbine; 2-3, supporting an exhaust primary injection cylinder of the gas turbine; 2-4, a gas turbine exhaust expansion section; 2-5, a gas turbine exhaust elbow; 2-6, a gas turbine exhaust guide vane; 2-7, a gas turbine exhaust straight flue section; 2-8, a gas turbine exhaust measurement platform; 2-9, a gas turbine exhaust silencer; 2-10, a gas turbine exhaust rain cap.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide an air inlet and outlet system of a gas turbine test bed, which solves the problems in the prior art and can reduce noise and sound.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1:
the invention provides an air inlet and exhaust system of a gas turbine test bed, which is shown in figure 1 and comprises a gas turbine air inlet and air inlet system 1 and a gas turbine air exhaust system 2 which are respectively arranged at two ends of the test bed; the gas turbine air inlet system 1 comprises a gas turbine air inlet system and a test bed air inlet system, wherein the gas turbine air inlet system and the test bed air inlet system are respectively provided with a gas filtering device, a gas dewatering device and an air inlet noise reduction device; the gas turbine exhaust system 2 is provided with an exhaust noise reduction device. The gas turbine test bed air inlet and outlet system has the characteristics of good silencing effect, good sound insulation effect, convenience in processing and environmental protection; the gas turbine exhaust silencer has good silencing effect and can effectively prevent noise emission at the exhaust end of the gas turbine.
Example 2:
the embodiment is further improved on the basis of the embodiment 1, and as shown in fig. 2, 3, 4 and 5, the gas turbine air intake system 1 comprises a gas turbine air intake canopy 1-1, a gas turbine air intake insect-proof net 1-2, a gas turbine air intake dehydrator 1-3, a gas turbine air intake filtering chamber 1-4, a gas turbine air intake primary filter 1-5, a gas turbine air intake blowback high-efficiency filter 1-6, a gas turbine air intake silencer 1-7, a gas turbine air intake switching section 1-8, a gas turbine air intake flow pipe 1-9, a test bed air intake switching section 1-10, a test bed air intake fan 1-11, a test bed air intake silencer 1-12, a test bed air intake filtering chamber 1-13, a test bed air intake primary filter 1-14, a test bed air intake dehydrator 1-15, a test bed air intake canopy 1-16, a test bed air intake net 1-17, a gas turbine air intake elbow 1-18, a gas turbine air intake soft connecting part 1-19, a gas turbine air intake guardrail 1-20, a gas turbine air intake system bracket 1-21 and a gas turbine air intake platform air intake system.
The gas turbine air inlet system and the test bed air inlet system form a large system, the outside of the test bed air inlet system of the gas turbine air inlet system is integral in appearance, the internal airflows are independent, and one part of the internal airflows meet the requirement of the gas turbine air inlet, and the air entering the gas turbine air compressor component is filtered, muffled and dehumidified to provide flow field quality, so that the safe operation of the gas turbine is ensured. In addition, the gas turbine belongs to high-speed rotating thermodynamic machinery, and the surface temperature of the cylinder body of the combustion chamber is at least 200 ℃ above during operation. The test bed air inlet system takes away the surface heat, cools the inner space of the factory building and keeps the temperature within a set temperature range.
The gas turbine exhaust system 2 is injection type exhaust, and the other function of the gas turbine air inlet system is to provide cooling airflow for the gas turbine injection exhaust system. The gas turbine exhaust system 2 comprises a gas turbine exhaust primary injection cylinder 2-1, a gas turbine exhaust secondary injection cylinder 2-2, a gas turbine exhaust primary injection cylinder support 2-3, a gas turbine exhaust expansion section 2-4, a gas turbine exhaust elbow 2-5, a gas turbine exhaust guide vane 2-6, a gas turbine exhaust straight flue section 2-7 and a gas turbine exhaust measurement platform 2-8, wherein guardrails, a ladder stand, a gas turbine exhaust silencer 2-9 and a gas turbine exhaust rain cap 2-10 are arranged on the gas turbine exhaust primary injection cylinder.
Further preferably, the gas turbine air inlet canopy 1-1 is positioned at the front end of the air inlet system, and the air inlet of the gas turbine air inlet canopy 1-1 is downward, so that the rainproof and snowproof effects of the air inlet are ensured; the inlet canopy is provided with the gas turbine inlet insect-proof net 1-2, and the inlet air flow speed is controlled below 1.5m/s by adopting a proper area, so that larger dust, catkin and flying birds are prevented from entering, and simultaneously, diptera insects such as sand flies and the like can be prevented. Along the inlet flow direction of the gas turbine, air enters the gas turbine inlet dehydrator 1-3 and the test bed inlet dehydrator 1-14 after 90-degree turning, the dehydrator adopts an inertia principle to separate liquid particles, when the air flow carrying the liquid particles passes through a specially designed and formed baffle blade at the speed of 2-3m/s, the movement direction of the liquid particles is changed from the movement direction of the gas under the action of inertia force at the turning part of the baffle blade, so that the liquid particles are separated from the gas.
The gas turbine inlet primary filter 1-5 and the gas turbine inlet back-blowing high-efficiency filter 1-6 are arranged in the gas turbine inlet filter chamber 1-4. The gas turbine inlet filter chamber 1-4 is provided with an access door and a crane beam, so that the gas turbine inlet filter chamber has the function of bringing convenience for personnel to enter and replace the filter. Wherein the gas turbine inlet primary filter 1-5 is a static filter, and the average efficiency of 0.4mm particles is 40% -60%. Wherein the gas turbine inlet back-flushing high-efficiency filter (1-6) is an online back-flushing filter, and the average efficiency of 0.4mm particles is 95%. The combined use prolongs the service life of the downstream filter.
The gas turbine air inlet silencer 1-7 and the test bed air inlet silencer 1-12 are formed by arranging a plurality of silencing folded plate units, wherein the silencing units are formed by welding stainless steel perforated plates and stainless steel plates and are internally filled with sound-absorbing porous material layers, and the sound-absorbing porous material layers are formed by wrapping glass silk floss with glass silk cloth.
The gas turbine inlet transition sections 1-8 enter the gas turbine inlet air flow into the gas turbine inlet air flow tubes 1-9. The gas turbine inlet flow pipe 1-9 adopts a twisted pair profile to enable free air to flow into a circular pipeline uniformly and rapidly, a measuring section is arranged at a certain position of the circular pipeline section to measure total pressure and static pressure to calculate flow, and a flow pipe is used for calculating flow by measuring total pressure and static pressure parameters at a characteristic section. The measured gas flow of the gas turbine enters the gas turbine air inlet volute through the gas turbine air inlet elbow 1-18 and enters the gas turbine air compressor, and the gas turbine air inlet flexible connection part 1-19 is arranged above the gas turbine air inlet volute, so that no additional load is applied to the gas turbine. The gas turbine inlet air intake system brackets 1-21 carry the rest of the gas turbine inlet air intake system 1.
The air inlets of the test bed air inlet rain sheds 1-16 and the gas turbine air inlet rain sheds 1-1 are symmetrically distributed, and the air inlets of the test bed air inlet rain sheds 1-16 are downward, so that the ventilation rainproof and snow-proof of the test bed are ensured; the test bed air inlet canopy 1-16 is provided with a test bed air inlet insect-proof net 1-17 to prevent larger dust, catkin and flying birds from entering; the test bed air inlet primary filter 1-14 is arranged in the test bed air inlet filter chamber 1-13. Wherein, the primary filter 1-14 of the test bed inlet air is a static filter, and the average efficiency of particles with the diameter of 0.4mm is 40-60%. The test bed air inlet filter chambers 1-13 are provided with an access door and a crane beam, so that the filter replacement function is convenient for personnel to enter. The gas turbine inlet filter chamber 1-4 is welded with the test bed inlet filter chamber 1-15. The test bed air inlet switching section 1-10 is provided with a test bed air inlet fan 1-11. The gas turbine exhaust primary injection cylinder 2-1 and the gas turbine exhaust secondary injection cylinder 2-2 are connected in series, so that secondary injection of the gas turbine exhaust is completed, the injection quantity is greatly increased, and the exhaust temperature is reduced. The gas turbine exhaust expansion section 2-4 enables the gas flow to be further mixed uniformly and stably after the gas turbine exhaust primary injection cylinder 2-1 and the gas turbine exhaust secondary injection cylinder 2-2 are injected and mixed, and the temperature is further reduced. The gas turbine exhaust elbow 2-5 is internally provided with the gas turbine exhaust guide vane 2-6, so that the exhaust resistance is greatly reduced, the injection quantity is improved, and the exhaust temperature is reduced. Along the exhaust flow direction of the gas turbine, a gas turbine exhaust straight flue section 2-7 is arranged behind the gas turbine exhaust guide vane 2-6, and no device is arranged in the air section, so that the gas flow is stable, and the CEMC flue gas on-line monitoring and measuring are more accurate. The gas turbine exhaust measurement platform, the guardrail and the cat ladder are used for facilitating maintenance and use of the CEMC flue gas online monitoring system. The gas turbine exhaust silencer 2-9 can effectively reduce gas turbine exhaust noise, and the gas turbine exhaust rain cap 2-10 can prevent rain and snow from entering the gas turbine exhaust system 2.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. The utility model provides a gas turbine test bed advances exhaust system which characterized in that: the system comprises a gas turbine air inlet system and a gas turbine exhaust system which are respectively arranged at two ends of a test workshop; the gas turbine air inlet system comprises a gas turbine air inlet system and a test bed air inlet system, wherein the gas turbine air inlet system and the test bed air inlet system are respectively provided with a gas filtering device, a gas dewatering device and an air inlet noise reduction device; the gas turbine exhaust system is provided with an exhaust noise reduction device; the gas filtering device of the gas turbine air inlet system comprises a gas turbine air inlet filtering chamber fixedly arranged on a gas turbine air inlet system bracket, one side of the gas turbine air inlet filtering chamber is communicated with the outside, the other side of the gas turbine air inlet filtering chamber is communicated with a gas turbine air inlet switching section, and the gas turbine air inlet switching section is sequentially connected with a gas turbine air inlet flow pipe, a gas turbine air inlet elbow, a gas turbine air inlet flexible connecting part and a gas turbine air inlet volute in series; the gas dewatering device of the gas turbine air inlet system is arranged at one side of the gas turbine air inlet filtering chamber communicated with the outside, and the air inlet noise reduction device of the gas turbine air inlet system is arranged at one side of the gas turbine air inlet filtering chamber close to the gas turbine air inlet switching section; the gas dewatering device of the gas turbine air inlet system is a gas turbine air inlet dewatering device fixedly arranged on one side of the gas turbine air inlet filtering chamber communicated with the outside, a gas turbine air inlet awning with an inclined top and an open bottom is fixedly communicated with the outer side of the gas turbine air inlet dewatering device, and a gas turbine air inlet insect-proof net is fixedly arranged at the open bottom end of the gas turbine air inlet awning; a gas turbine inlet primary filter and a gas turbine inlet back-flushing high-efficiency filter are sequentially arranged in the gas turbine inlet filter chamber; the air intake noise reduction device of the air intake system of the gas turbine is a gas turbine air intake silencer arranged between the air intake back-blowing efficient filter of the gas turbine and the air intake switching section of the gas turbine; the gas turbine exhaust and air exhaust system comprises a gas turbine exhaust primary injection cylinder and a gas turbine exhaust secondary injection cylinder which are connected in series, and the opening end of the gas turbine exhaust primary injection cylinder is positioned at a position close to the gas turbine in the test room; one end of the gas turbine exhaust secondary injection cylinder, which is far away from the gas turbine exhaust primary injection cylinder, is connected with a gas turbine exhaust expansion section, one end of the gas turbine exhaust expansion section, which is larger in opening cross section area, is connected with a vertically arranged gas turbine exhaust straight flue section through a gas turbine exhaust elbow, and a gas turbine exhaust rain cap is arranged at the top of the gas turbine exhaust straight flue section; the exhaust noise reduction device of the gas turbine exhaust system is a gas turbine exhaust silencer, and the gas turbine exhaust silencer is arranged at one end, close to the gas turbine exhaust rain cap, in the gas turbine exhaust straight flue section.
2. The gas turbine test bed air intake and exhaust system of claim 1, wherein: the gas filtering device of the test bed air inlet system comprises a test bed air inlet filtering chamber fixedly arranged on a gas turbine air inlet system support, one side of the test bed air inlet filtering chamber is communicated with the outside, the other side of the test bed air inlet filtering chamber is communicated with a test bed air inlet switching section, and a test bed air inlet fan communicated with the interior of the test bed is arranged in the test bed air inlet switching section; the gas dewatering device of the test bed air inlet system is arranged on one side of the test bed air inlet filter chamber communicated with the outside, and the air inlet noise reduction device of the test bed air inlet system is arranged on one side of the test bed air inlet filter chamber close to the test bed air inlet switching section.
3. The gas turbine test bed air intake and exhaust system of claim 2, wherein: the gas dewatering device of the test bed air inlet system is a test bed air inlet dewatering device fixedly arranged on one side of the test bed air inlet filtering chamber communicated with the outside, a test bed air inlet awning with an inclined top and an open bottom is fixedly communicated with the outer side of the test bed air inlet dewatering device, and a test bed air inlet insect-proof net is fixedly arranged at the open bottom end of the test bed air inlet awning.
4. The gas turbine test bed air intake and exhaust system of claim 2, wherein: the test bed air inlet filter is arranged in the test bed air inlet filter chamber, and the air inlet noise reduction device of the test bed air inlet system is a test bed air inlet silencer arranged between the test bed air inlet primary filter and the test bed air inlet switching section.
5. The gas turbine test bed air intake and exhaust system of claim 1, wherein: a gas turbine exhaust guide vane is arranged in the gas turbine exhaust elbow; the outside of the gas turbine exhaust straight flue section is provided with a gas turbine exhaust measurement platform, and the gas turbine exhaust measurement platform is provided with a guardrail and a ladder stand.
6. The gas turbine test bed air intake and exhaust system of claim 1, wherein: the outer side of the gas turbine air inlet system is provided with a gas turbine air inlet system platform guardrail; the sound insulation interlayer is arranged on the outer side of the gas turbine air inlet silencer and comprises a steel plate, a supporting piece, a sound absorption porous material layer and a perforated plate which are sequentially and fixedly connected, and the sound absorption porous material layer is formed by wrapping glass silk floss with glass silk floss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210497255.8A CN114942143B (en) | 2022-05-09 | 2022-05-09 | Gas turbine test bed air inlet and exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210497255.8A CN114942143B (en) | 2022-05-09 | 2022-05-09 | Gas turbine test bed air inlet and exhaust system |
Publications (2)
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| CN113006758A (en) * | 2021-03-02 | 2021-06-22 | 哈尔滨城林科技股份有限公司 | Noise reduction cabin of fracturing truck |
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2022
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| WO1998048160A1 (en) * | 1997-04-21 | 1998-10-29 | Siemens Aktiengesellschaft | Air intake system for a gas turbine engine |
| CN104895677A (en) * | 2015-06-01 | 2015-09-09 | 江苏华强新能源科技有限公司 | Air intake system and method for gas turbine |
| CN211852004U (en) * | 2020-02-27 | 2020-11-03 | 城林环保技术（上海）有限公司 | Silencer of large gas turbine |
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| CN114942143A (en) | 2022-08-26 |
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