CN111896237A - Gas turbine fuel nozzle and blade integrated gas flow detection device - Google Patents
Gas turbine fuel nozzle and blade integrated gas flow detection device Download PDFInfo
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- CN111896237A CN111896237A CN202010884201.8A CN202010884201A CN111896237A CN 111896237 A CN111896237 A CN 111896237A CN 202010884201 A CN202010884201 A CN 202010884201A CN 111896237 A CN111896237 A CN 111896237A
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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
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
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Abstract
The invention discloses a gas turbine fuel nozzle and blade integrated gas flow detection device, which comprises a gas source device, wherein one side of the gas source device is provided with a flow detection device body, the other side of the flow detection device body is provided with a tool connecting interface, the integrated gas flow detection device adopts two paths of output for measurement, the problem that products of different models cannot be measured is solved, one integrated gas flow detection device is multipurpose, the utilization rate of equipment is improved, and the gas source device adopts 8m3The air storage tank provides stable output pressure, stable, dry and clean air is provided for the whole device through the air filtering system, the whole detection device ensures stable and automatic adjustment of the pressure of the measurement device through the control valve, the regulating valve, the pressure transmitter, the pressure stabilizing cylinder and the like, the requirement of inlet pressure is met, and the pressure fluctuation is reduced to leadThe error that rises adopts corrugated hose to connect between detection device and the part frock, can adjust the experimental piece installation direction according to actual demand.
Description
Technical Field
The invention relates to the technical field of gas turbines, in particular to a gas turbine fuel nozzle and blade comprehensive gas flow detection device.
Background
The gas turbine manufacturing technology is the centralized embodiment of national comprehensive national force, process foundation and technology level, is a strategic industry relating to national energy and national defense safety, represents the highest level of assembly manufacturing industry, and is known as 'imperial pearl on imperial crown' in the field of power machinery. The reliability and environmental safety of gas turbine operation is determined by the efficiency of the fuel and air mixed combustion and the operating life of the turbine blades. The operating life of the turbine blades is determined by the uniformity of the radial and circumferential temperature distribution at the combustion outlet; in addition, gas turbine pollutant emission levels are also determined by the fuel nozzle internal flowpath gas throughput capability. In the design of a gas turbine, a turbine blade plays a very important role on the gas turbine as a key part of the gas turbine; how to improve the cooling effect of the turbine blade and ensure more effective operation of the blade during operation not only depends on the improvement of the technological level but also requires the improvement of the structural design. In recent years, the turbine blades all adopt a hollow tree-shaped cross cooling structure with a complex structure so as to enhance the cooling effect of the blades;
in view of the above, in order to check the production quality of the fuel nozzle of the combustor, ensure the stability of various indexes during the combustion process, and obtain accurate cooling flow data of the blade, it is necessary to perform gas flow detection on the fuel nozzle and the turbine blade, and verify whether the product quality meets the design requirements according to the passing capability of the internal channel of the fuel nozzle and the cooling structure of the turbine blade. The existing gas flow detection device has the advantages of complex operation, low precision, poor repeatability and no comprehensive measurement capability, and cannot carry out batch measurement on the blades and the fuel nozzles. Therefore, a comprehensive gas flow detection device needs to be designed, can simultaneously meet the requirement of batch gas flow detection of fuel nozzles and turbine blades, has the characteristics of high precision, intellectualization, conciseness and high efficiency, and has important significance for meeting the safe and reliable operation of a gas turbine and improving the comprehensive efficiency.
Disclosure of Invention
The invention aims to provide a gas turbine fuel nozzle and blade integrated gas flow detection device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a gas turbine fuel nozzle and blade integrated gas flow detection device comprises a gas source device, wherein one side of the gas source device is provided with a flow detection device body, and the other side of the flow detection device body is provided with a tool connecting interface;
the air source device comprises an air storage tank, one end of an air filter is fixedly communicated with the side wall of the air storage tank, the other end of the air filter is fixedly communicated with an air source air supply pipeline, and the air filter is connected with an air source control valve through the air source air supply pipeline;
the flow detection device body comprises a blade gas flow detection branch and a fuel nozzle gas flow detection branch, the blade gas flow detection branch and the fuel nozzle gas flow detection branch are connected with an air valve together, and the air valve is connected with an air source control valve.
Preferably, the blade gas flow detection branch comprises a blade flow pneumatic control valve, one end of the blade flow pneumatic control valve is communicated with an air valve, the other end of the blade flow pneumatic control valve is connected with one end of a blade volume flow meter through a blade flow main pipeline, the other end of the blade volume flow meter is fixedly communicated with one end of a blade flow diffusion section, a first digital thermometer is assembled on the surface of the blade flow diffusion section, the other end of the blade flow diffusion section is communicated with a blade flow pressure stabilizing cylinder, the blade flow pressure stabilizing cylinder is connected with one end of a blade flow output control valve through a blade flow reducing flange, the other end of the blade flow output control valve is connected with a blade large-flow pressure transmitter, and the outer side end of the blade large-flow pressure transmitter is communicated with a blade tooling hose.
Preferably, the nozzle gas flow detection branch comprises a nozzle flow pneumatic regulating valve, one end of the nozzle flow pneumatic regulating valve is communicated with an air valve, the other end of the nozzle flow pneumatic regulating valve is connected with one end of a nozzle mass flow meter through a nozzle flow main pipeline, the other end of the nozzle mass flow meter is fixedly communicated with one end of a nozzle flow diffusion section, a second digital thermometer is assembled on the surface of the nozzle flow diffusion section, the other end of the nozzle flow diffusion section is communicated with a nozzle flow pressure stabilizing cylinder, the nozzle flow pressure stabilizing cylinder is connected with one end of a nozzle flow output control valve through a nozzle flow reducing flange, the other end of the nozzle flow output control valve is connected with a nozzle large-flow pressure transmitter, and the outer side end of the nozzle large-flow pressure transmitter is communicated with a nozzle tooling hose.
Preferably, the integrated gas flow detection device can measure the gas mass flow and the volume flow of the product under different pressures of between.MPa and.MPa.
Preferably, the integrated gas flow rate detection device can measure the volume flow rate within the flow rate range of Kg/h to Kg/h or under the same condition.
Compared with the prior art, the invention has the beneficial effects that: a gas turbine fuel nozzle and blade integrated gas flow detection device adopts twoWay output is measured, the problem that different model products can not be measured is solved, realize a multi-purpose, the equipment utilization rate is improved, the whole integrated gas flow detection device comprises three parts, the modularized integrated design is adopted, the field installation is dismantled, the transportation is convenient, the flow detection device body is subjected to parameter setting and control through a control panel, the gas flow measurement demands of different products under different pressures are solved, the flow measurement device adopts a high-precision thermal gas quality (volume) flowmeter to monitor, the mass flow or the volume flow of gas can be directly detected, the detection range is large, the temperature and pressure compensation is not needed, the measurement is convenient and accurate, the measurement of different media can be simultaneously met, the gas source device adopts 8m3The gas holder provides stable output pressure, provide stable for whole device through air filtration system, it is dry, clean air, whole detection device passes through the control valve, the governing valve, pressure transmitter, pressure stabilizing cylinder etc. has guaranteed measuring device pressure stability and automatic adjustment, satisfy the import pressure requirement, reduce the error that the pressure oscillation arouses, adopt the bellows to connect between detection device and the part frock, can adjust the experimental part installation direction according to actual demand, convenient dismantlement and installation, comprehensive gas flow detection device compact structure, the installation is maintained portably, can install and maintain at the scene, be fit for different environment, the place measurement requirement, high economical efficiency, comprehensive gas flow detection device reserves the upgrading interface, the accessible is reformed transform and is realized bigger bore flow detection demand.
Drawings
FIG. 1 is a system diagram of an integrated gas flow sensing device;
FIG. 2 is a perspective view of the integrated gas flow sensing device;
FIG. 3 is a schematic view of the integrated gas flow detection device
Fig. 4 is a partial enlarged view of the structure of the integrated gas flow rate detecting device.
In the figure: 1. the air source device is provided with an air storage tank; 2. a gas source gas supply main pipeline; 3. a precision air filter; 4. a gas source control valve; 5. an electromagnetic air valve; 6. a blade flow pneumatic regulating valve; 7. a blade flow main pipeline; 8. a vane volumetric flow meter; 9. a blade flow diffuser section; 10. a first digital thermometer; 11. a blade flow stabilizing cylinder; 12. a blade flow reducing flange; 13. a vane flow output control valve; 14. a blade high-flow pressure transmitter; 15. connecting a blade tooling hose; 16. a nozzle flow pneumatic regulating valve; 17. a nozzle flow main line; 18. a nozzle mass flow meter; 19. a nozzle flow diffuser section; 20. a second digital thermometer; 21. a nozzle flow pressure stabilizing cylinder; 22. a nozzle flow reducing flange; 23. a nozzle flow output control valve; 24. a nozzle small flow pressure transmitter; 25. and connecting a fuel nozzle tooling hose.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a gas turbine fuel nozzle and blade integrated gas flow detection device comprises a gas source device, wherein one side of the gas source device is provided with a flow detection device body, and the other side of the flow detection device body is provided with a tool connecting interface;
the air source device comprises an air storage tank 1, the side wall of the air storage tank 1 is fixedly communicated with one end of an air filter 2, the other end of the air filter 2 is fixedly communicated with an air source air supply pipeline 3, and the air filter 2 is connected with an air source control valve 4 through the air source air supply pipeline 3;
the flow detection device body comprises a blade gas flow detection branch and a fuel nozzle gas flow detection branch, the blade gas flow detection branch and the fuel nozzle gas flow detection branch are connected with an air valve 5, and the air valve 5 is connected with an air source control valve 4.
The comprehensive gas flow detection device is used for respectively detecting the gas flow of the fuel nozzle and the turbine blade through two paths of outputs and mainly comprises a gas sourceThe device, the flow detection device body, frock connection interface constitutes, synthesize gas flow detection device and adopt two way outputs to measure, the problem of different model products can't carry out the measurement has been solved, realize a multi-purpose, the equipment utilization rate has been improved, synthesize gas flow detection device whole measurement accuracy and reach 10 permillage, satisfy the measurement accuracy requirement of blade and fuel nozzle, the flow detection device body passes through the measurement parameter in the electric equipment intelligent control flow detection processes such as electromagnetic air valve, pneumatic control valve, mass volume flowmeter, pressure transmitter by control panel, realize control panel key formula and measure, the air supply unit adopts 8m3The gas holder provides stable output pressure, provides stable, dry, clean air for whole device through air filtration system, and whole detection device has guaranteed measuring device pressure stability and automatic adjustment through control valve, governing valve, pressure transmitter, pressure stabilizing cylinder etc. satisfies the import pressure requirement, reduces the error that the pressure oscillation arouses, adopts the bellows to connect between detection device and the part frock, can adjust the experiment piece direction of installation according to actual demand.
Specifically, the blade gas flow detection branch comprises a blade flow pneumatic regulating valve 6, one end of the blade flow pneumatic regulating valve 6 is communicated with an air valve 5, the other end of the blade flow pneumatic regulating valve 6 is connected with one end of a blade volume flow meter 8 through a blade flow main pipeline 7, the other end of the blade volume flow meter 8 is fixedly communicated with one end of a blade flow diffusion section 9, the surface of the blade flow diffusion section 9 is assembled with a first digital thermometer 10, the other end of the blade flow diffusion section 9 is communicated with a blade flow pressure stabilizing cylinder 11, and the blade flow pressure stabilizing cylinder 11 is connected with one end of a blade flow output control valve 13 through a blade flow reducing flange 12, the other end of the blade flow output control valve 13 is connected with a blade large-flow pressure transmitter 14, and the outer side end of the blade large-flow pressure transmitter 14 is communicated with a blade tooling hose 15.
The blade gas flow detection branch is set with pressure by a blade flow pneumatic regulating valve 6 and a blade large-flow pressure transmitter 14 according to a control panel, the pressure of the automatic regulating branch meets the requirement of measuring inlet pressure, and the pressure variation error does not exceed 0.1% of the range; the main blade flow pipeline 7 is connected with a blade volume flowmeter 8 to monitor the gas flow passing through the blade cooling flow channel in real time; the blade flow diffusion section 9 is connected with a blade flow pressure stabilizing cylinder 11 through a variable diameter to adjust the output pressure, so that the stability of the pressure in the pipeline and the outlet pressure is ensured to the maximum extent; the digital thermometer 10 monitors the real-time temperature in the pipeline; the air is stably output to the blade internal cooling flow channel from the detection device body through the blade flow reducing flange 12, the blade flow output control valve 13 and the connecting blade tooling hose 15.
Specifically, the nozzle gas flow detection branch comprises a nozzle flow pneumatic control valve 16, one end of the nozzle flow pneumatic control valve 16 is communicated with an air valve 5, the other end of the nozzle flow pneumatic control valve 16 is connected with one end of a nozzle mass flow meter 18 through a nozzle flow main pipeline 17, the other end of the nozzle mass flow meter 18 is fixedly communicated with one end of a nozzle flow diffusion section 19, the surface of the nozzle flow diffusion section 19 is assembled with a second digital thermometer 20, the other end of the nozzle flow diffusion section 19 is communicated with a nozzle flow pressure stabilizing cylinder 21, and the nozzle flow pressure stabilizing cylinder 21 is connected with one end of a nozzle flow output control valve 23 through a nozzle flow reducing flange 22, the other end of the nozzle flow output control valve 23 is connected with a nozzle large-flow pressure transmitter 24, and the outer side end of the nozzle large-flow pressure transmitter 24 is communicated with a nozzle tooling hose 25.
The nozzle gas flow detection branch is set with pressure by a nozzle flow pneumatic control valve 16 and a nozzle small flow pressure transmitter 24 according to a control panel, the pressure of the branch is automatically adjusted to meet the requirement of measuring inlet pressure, and the pressure variation error is not more than 0.1% of the measuring range; the nozzle mass flowmeter 18 is connected through a nozzle flow main pipeline 17, and the gas flow passing through an internal flow channel of the fuel nozzle is monitored in real time; the nozzle flow diffusion section 19 is connected with a nozzle flow pressure stabilizing cylinder 21 through a reducing pipe to adjust the output pressure, so that the stability of the pressure in the pipeline and the outlet pressure is ensured to the maximum extent; the digital thermometer 20 monitors the real-time temperature in the pipeline; the air is stably output to the internal flow passage of the nozzle from the detection device body through the nozzle flow reducing flange 22, the nozzle flow output control valve 23 and the connecting nozzle tooling hose 25.
Specifically, the comprehensive gas flow detection device can measure the gas mass flow and the volume flow of the product under different pressures of 0.01 MPa-0.35 MPa.
Specifically, the integrated gas flow rate detection device can measure the volume flow rate within the flow rate range of 5Kg/h to 100Kg/h or under the same condition.
The working principle is as follows: the air source device is composed of 8m3The air storage tank 1, air cleaner 2, air supply pipeline 3, air supply control valve 4 connect and constitute, filter moisture in the air, greasy dirt etc. to for whole detection device provides dry, clean, stable air, flow detection device body is integrated to be installed in the modularization box, comprises two branches of electromagnetic air valve 5, blade gas flow detection branch road, fuel nozzle gas flow detection branch road, open and close through the whole detection device inlet air of electromagnetic air valve control. Each electrical device in the detection device is connected to a control panel through a power line to be controlled, automatic testing is achieved, the pressure of the blade gas flow detection branch is set according to the control panel, the pressure of the branch is automatically adjusted to meet the requirement of measuring inlet pressure, and the pressure change error is not more than 0.1% of the range; the gas flow passing through the blade cooling flow passage can be monitored in real time; meanwhile, the output pressure is set, so that the stability of the pressure in the pipeline and the outlet pressure is ensured to the maximum extent; monitoring the real-time temperature in the pipeline; meanwhile, air can be stably output to the cooling flow channel in the blade from the detection device body, the pressure of the nozzle gas flow detection branch is set according to the control panel, the pressure of the automatic adjustment branch meets the requirement of measuring inlet pressure, and the pressure change error is not more than 0.1% of the measuring range; the gas flow through the internal flow passage of the fuel nozzle can be monitored in real time; meanwhile, the output pressure is set, so that the stability of the pressure in the pipeline and the outlet pressure is ensured to the maximum extent; monitoring the real-time temperature in the pipeline; meanwhile, air can be stably output to the nozzle inner flow channel from the detection device body.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, the machinery, parts and equipment adopt conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a gas turbine fuel nozzle synthesizes gas flow detection device with blade, includes the air supply unit, its characterized in that: one side of the air source device is provided with a flow detection device body, and the other side of the flow detection device body is provided with a tool connecting interface;
the air source device comprises an air storage tank (1), the side wall of the air storage tank (1) is fixedly communicated with one end of an air filter (2), the other end of the air filter (2) is fixedly communicated with an air source air supply pipeline (3), and the air filter (2) is connected with an air source control valve (4) through the air source air supply pipeline (3);
the flow detection device body comprises a blade gas flow detection branch and a fuel nozzle gas flow detection branch, the blade gas flow detection branch and the fuel nozzle gas flow detection branch are connected with an air valve (5) together, and the air valve (5) is connected with an air source control valve (4).
2. The integrated gas flow sensing device for a gas turbine fuel nozzle and vane as claimed in claim 1, wherein: the blade gas flow detection branch comprises a blade flow pneumatic control valve (6), one end of the blade flow pneumatic control valve (6) is communicated with an air valve (5), the other end of the blade flow pneumatic control valve (6) is connected with one end of a blade volume flow meter (8) through a blade flow main pipeline (7), the other end of the blade volume flow meter (8) is fixedly communicated with one end of a blade flow diffusion section (9), a first digital thermometer (10) is assembled on the surface of the blade flow diffusion section (9), the other end of the blade flow diffusion section (9) is communicated with a blade flow pressure stabilizing cylinder (11), the blade flow pressure stabilizing cylinder (11) is connected with one end of a blade flow output control valve (13) through a blade flow reducing flange (12), and the other end of the blade flow output control valve (13) is connected with a high-flow blade pressure transmitter (14), the outer side end of the blade large-flow pressure transmitter (14) is communicated with a blade tooling hose (15).
3. The integrated gas flow sensing device for a gas turbine fuel nozzle and vane as claimed in claim 1, wherein: the nozzle gas flow detection branch comprises a nozzle flow pneumatic regulating valve (16), one end of the nozzle flow pneumatic regulating valve (16) is communicated with an air valve (5), the other end of the nozzle flow pneumatic regulating valve (16) is connected with one end of a nozzle mass flow meter (18) through a nozzle flow main pipeline (17), the other end of the nozzle mass flow meter (18) is fixedly communicated with one end of a nozzle flow diffusion section (19), a second digital thermometer (20) is assembled on the surface of the nozzle flow diffusion section (19), the other end of the nozzle flow diffusion section (19) is communicated with a nozzle flow pressure stabilizing cylinder (21), the nozzle flow pressure stabilizing cylinder (21) is connected with one end of a nozzle flow output control valve (23) through a nozzle flow reducing flange (22), and the other end of the nozzle flow output control valve (23) is connected with a nozzle high-flow pressure transmitter (24), and the outer side end of the nozzle high-flow pressure transmitter (24) is communicated with a nozzle tooling hose (25).
4. The integrated gas flow sensing device for a gas turbine fuel nozzle and vane as claimed in claim 1, wherein: the comprehensive gas flow detection device can measure the gas mass flow and the volume flow of the product at different pressures of 0.01 MPa-0.35 MPa.
5. The integrated gas flow sensing device for a gas turbine fuel nozzle and vane as claimed in claim 1, wherein: the comprehensive gas flow detection device can measure the volume flow of 5 Kg/h-100 Kg/h or under the same condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010884201.8A CN111896237A (en) | 2020-08-28 | 2020-08-28 | Gas turbine fuel nozzle and blade integrated gas flow detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010884201.8A CN111896237A (en) | 2020-08-28 | 2020-08-28 | Gas turbine fuel nozzle and blade integrated gas flow detection device |
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| CN111896237A true CN111896237A (en) | 2020-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029547A (en) * | 2021-04-01 | 2021-06-25 | 中国科学院工程热物理研究所 | Portable gas fuel nozzle flow testing device and using method |
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2020
- 2020-08-28 CN CN202010884201.8A patent/CN111896237A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029547A (en) * | 2021-04-01 | 2021-06-25 | 中国科学院工程热物理研究所 | Portable gas fuel nozzle flow testing device and using method |
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