CN114018346A - Tool for measuring air flow of swirler of combustion chamber of gas turbine - Google Patents
Tool for measuring air flow of swirler of combustion chamber of gas turbine Download PDFInfo
- Publication number
- CN114018346A CN114018346A CN202111187926.2A CN202111187926A CN114018346A CN 114018346 A CN114018346 A CN 114018346A CN 202111187926 A CN202111187926 A CN 202111187926A CN 114018346 A CN114018346 A CN 114018346A
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- CN
- China
- Prior art keywords
- swirler
- gas collection
- fixedly connected
- air flow
- collection tank
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/18—Supports or connecting means for meters
- G01F15/185—Connecting means, e.g. bypass conduits
-
- 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
- G01F1/05—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 mechanical effects
- G01F1/20—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 mechanical effects by detection of dynamic effects of the flow
- G01F1/32—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 mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The invention provides a tool for measuring air flow of a gas turbine combustion chamber swirler, and relates to the technical field of air flow measurement of gas turbine combustion chamber swirlers. This a frock for gas turbine combustion chamber swirler air flow measurement, including keeping apart cabinet body, gas collection tank, swirler mounting panel, pneumatic installation module, the inside fixedly connected with intermediate bottom of keeping apart the cabinet body, gas collection tank fixed connection is at the interior bottom of keeping apart the cabinet body, swirler mounting panel fixed connection is at the upper surface of gas collection tank, the upper surface of gas collection tank just is located the swirler mounting panel around with pneumatic installation module fixed connection. The invention aims to improve the air flow measurement precision of the swirler, reduce the problem of measurement value fluctuation caused by atmospheric environment disturbance, air intake disturbance, pressure measurement disturbance and the like, and simultaneously improve the assembly speed and ensure the consistency of pretightening force after each installation through the automatic pressing device.
Description
Technical Field
The invention relates to the technical field of air flow measurement of a swirler of a combustion chamber of a gas turbine, in particular to a tool for measuring air flow of a swirler of a combustion chamber of a gas turbine.
Background
The swirler is an important part for controlling the combustion performance of the combustion chamber of the aircraft engine, and the effective opening area of the swirler is an important index for the performance of the part, so that the swirler needs to be measured. At present, a modern aircraft engine combustion chamber swirler is machined by a casting method, ventilation measurement is carried out in a simple tool after machining, and each part needs to measure the air flow under 3-5 different pressure points, so that a pressure-flow characteristic curve is obtained, and the effective opening area of the swirler is obtained. This value is then provided to the engine host plant along with the parts and is selected prior to assembly of the swirler.
1. The traditional vortex device has simple measuring tools, and the method of combining a direct-current air inlet device and a simple pore plate is adopted to rectify the incoming flow at the inlet, so that the obtained flow field has poor uniformity, and the measuring precision of the vortex devices of different types fluctuates;
2. the swirler adopts the mode installation of bolt-up with the frock, and the proficiency and the standardization that are controlled the workman to operate in the installation have the possibility of gas leakage, consequently need paint soapy water at the junction before the experiment, carry out the leakproofness inspection, lead to measurement process inefficiency.
3. The tool is arranged in a normally open atmospheric environment and is greatly influenced by an external flow field, so that the measurement precision fluctuates.
4. The number of the static pressure measuring points is 1, and pressure fluctuation is possibly caused by blockage or near-wall surface disturbance in the measuring process so as to influence the measuring precision;
the technical problems of the existing vortex device measuring tool are four points, namely, the outlet environment is the atmospheric environment and is easily influenced by the environment (such as indoor transverse wind), the air inlet rectifying structure is simple and cannot realize uniform air inlet pressure and flow velocity, the vortex device measuring and mounting process is complicated and low in mounting efficiency and is influenced by more human factors, the number of static pressure measuring points is too small, so that pressure misjudgment is easy, and the four problems can be solved by the following technical scheme)
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a tool for measuring the air flow of a swirler of a combustion chamber of a gas turbine, aiming at improving the air flow measurement precision of the swirler, reducing the measurement value fluctuation problem caused by the problems of atmospheric environment disturbance, air inlet disturbance, pressure measurement disturbance and the like, and simultaneously improving the assembly speed and ensuring the consistency of pretightening force after each installation through an automatic pressing device.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a frock for gas turbine combustion chamber swirler air flow measurement, is including keeping apart cabinet body, gas collection tank, swirler mounting panel, pneumatic installation module, the inside fixedly connected with intermediate bottom of keeping apart the cabinet body, gas collection tank fixed connection is at the interior bottom of keeping apart the cabinet body, swirler mounting panel fixed connection is at the upper surface of gas collection tank, the upper surface of gas collection tank just is located the swirler mounting panel around with pneumatic installation module fixed connection.
Preferably, the gas collection tank consists of an upper gas collection tank and a lower gas collection tank, the upper gas collection tank and the lower gas collection tank are connected through a flange, and a rotational flow gas collection pipe is fixedly connected to the side surface of the lower gas collection tank.
Preferably, an inner side sealing ring is fixedly connected between the vortex device mounting plate and the upper surface of the gas collection box, an intermediate sealing ring is fixedly connected between the vortex device mounting plate and the upper surface of the gas collection box and positioned on the outer side of the inner side sealing ring, and an outer side sealing ring is fixedly connected between the vortex device mounting plate and the upper surface of the gas collection box and positioned on the outer side of the intermediate sealing ring.
Preferably, the lower surface of the swirler mounting plate is fixedly connected with a swirler, the lower surface of the swirler is fixedly connected with a swirler plug, and the inside of the lower gas collection box is fixedly connected with a honeycomb plate.
Preferably, the lower surface of the vortex device plug is connected with a compressing thimble, the surface of the compressing thimble is fixedly connected with a vortex device compressing bracket, and a vortex device compressing bracket connecting rod is fixedly connected between the vortex device compressing bracket and the vortex device plug.
Preferably, a compression spring is arranged in the compression bracket, the top of the compression spring is fixedly connected with a convex block on the surface of the compression thimble, and the bottom of the compression thimble is fixedly connected with a pull ring through a bolt.
Preferably, the side surface of the upper gas collecting box and the edge close to the top are fixedly connected with one static pressure measuring point in number.
(III) advantageous effects
The invention provides a tool for measuring air flow of a swirler of a combustion chamber of a gas turbine. The method has the following beneficial effects:
1. compared with the prior art, the device has the advantages of simple structure, wide working range, stable measurement and difficulty in damage.
2. Compared with the prior art, through automatic closing device, improve assembly speed and ensure that the pretightning force after installing at every turn is unanimous simultaneously.
Drawings
FIG. 1 is a schematic diagram of the internal structure of a tool for measuring the air flow of a gas turbine combustor swirler, according to the present invention;
FIG. 2 is a perspective view of a gas collecting box structure of the tooling for measuring air flow of a swirler of a combustion chamber of a gas turbine, according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a gas collecting box of the tooling for measuring the air flow of the swirler of the combustion chamber of the gas turbine, which is provided by the invention;
fig. 4 is an enlarged view of a in fig. 3 according to the present invention.
Wherein, 1, the isolation cabinet body; 2. a gas collection tank; 3. a swirler mounting plate; 4. a pneumatic mounting module; 5. a test box; 6. a middle partition plate; 7. installing a box body; 8. an upper gas collection tank; 9. a lower gas collection tank; 10. a honeycomb panel; 11. a rotational flow gas collecting pipe; 12. a swirler; 13. a swirler plug; 14. the swirler compresses the bracket; 15. compressing the thimble; 16. a compression spring; 17. a pull ring; 18. an inner layer seal ring; 19. a middle seal ring; 20. an outer layer sealing ring; 21. the vortex device compresses the bracket connecting rod; 22. and measuring a static pressure point.
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.
As shown in fig. 1-4, an embodiment of the present invention provides a tool for measuring air flow of a swirler of a combustion chamber of a gas turbine, including an isolation cabinet body 1, a gas collection tank 2, a swirler mounting plate 3, and a pneumatic mounting module 4, wherein an intermediate partition plate 6 is fixedly connected inside the isolation cabinet body 1, the gas collection tank 2 is fixedly connected to an inner bottom of the isolation cabinet body 1, the swirler mounting plate 3 is fixedly connected to an upper surface of the gas collection tank 2, the upper surface of the gas collection tank 2 is located around the swirler mounting plate 3 and is fixedly connected to the pneumatic mounting module 4, and the isolation cabinet body 1 is divided into an upper layer and a lower layer by using the intermediate partition plate 6, which is mainly used for separating a measurement environment from an atmospheric environment and reducing influence of ambient atmospheric environment interference on measurement during a measurement process. (the air is isolated, so the technical problem 1 is solved), the pneumatic mounting module 4 is composed of 4-16 rotary pressing cylinders capable of rotating by 90-180 degrees according to the size of the swirler mounting plate 13. (through the soft sealing of rubber O circle and the even automatic compaction of pneumatic installation module 4, guaranteed that the installation power all has high repeatability at every turn, avoided the problem that manual installation appears, consequently solved above-mentioned problem 3).
Preferably, the gas collecting box 2 is composed of an upper gas collecting box 8 and a lower gas collecting box 9, the upper gas collecting box 8 is connected with the lower gas collecting box 9 through a flange, a rotational flow gas collecting pipe 11 is fixedly connected to the side surface of the lower gas collecting box 9, the rotational flow gas collecting pipe 11 is tangent to the side surface of the lower gas collecting box 9, the tangential rotational flow gas collecting pipe 11 enables incoming air flow to be rotational flow, air is uniformly dispersed in the gas collecting box 2 through rotational flow, and the honeycomb panel 10 rectifies low-speed air with rotational flow into low-speed direct-current air. And the swirler mounting plate 13 is positioned at the uppermost part of the gas collecting box and is used for fixing the swirler 12 mounting plate and the pneumatic mounting module 4. (the air is uniformly distributed in the air collecting box 2 by the cyclone intake to become the rotating air with low flow velocity, and then the rotating air is rectified by the honeycomb panel 10 to become the uniform direct current air, thereby solving the problem 2).
Preferably, an inner side sealing ring 18 is fixedly connected between the swirler mounting plate 3 and the upper surface of the gas collection tank 2, an intermediate sealing ring 19 is fixedly connected between the swirler mounting plate 3 and the upper surface of the gas collection tank 2 and positioned at the outer side of the inner side sealing ring 18, and an outer side sealing ring 20 is fixedly connected between the swirler mounting plate 3 and the upper surface of the gas collection tank 2 and positioned at the outer side of the intermediate sealing ring 19.
Preferably, the lower surface of the swirler mounting plate 3 is fixedly connected with a swirler 12, the lower surface of the swirler 12 is fixedly connected with a swirler plug 13, and the inside of the lower gas collection box 9 is fixedly connected with a honeycomb plate 10.
Preferably, the lower surface of the swirler plug 13 is connected with a pressing thimble 15, the surface of the pressing thimble 15 is fixedly connected with a swirler pressing support 14, and a swirler pressing support connecting rod 21 is fixedly connected between the swirler pressing support 14 and the swirler plug 13.
Preferably, a pressing spring 16 is arranged inside the pressing bracket 14, the top of the pressing spring 16 is fixedly connected with a projection on the surface of the pressing thimble 15, and the bottom of the pressing thimble 15 is fixedly connected with a pull ring 17 through a bolt.
Preferably, the side surface of the upper gas collection box 8 and the edge close to the top are fixedly connected with 3-6 static pressure measuring points 22, the upper gas collection box 8 comprises 3-6 static pressure measuring points 22 with the diameter of 0.2 mm-1.5 mm at the position 5 mm-50 mm away from the outlet of the swirler 12, and the pressure is led out and then is connected and converged through a static pressure path and is connected with the high pressure side of 2-3 differential pressure sensors. The low pressure side of the differential pressure sensor is connected to the atmosphere. (pressure equalization is realized by converging a plurality of pressure measurement points, and then a plurality of pressure difference sensors are introduced to prevent the pressure difference sensors from generating problems, thereby solving the problem 4).
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 (7)
1. The utility model provides a frock for gas turbine combustor swirler air flow measurement which characterized in that: including keeping apart cabinet body (1), gas collection tank (2), swirler mounting panel (3), pneumatic installation module (4), keep apart the inside fixedly connected with intermediate bottom (6) of cabinet body (1), gas collection tank (2) fixed connection is at the interior bottom of keeping apart cabinet body (1), swirler mounting panel (3) fixed connection is at the upper surface of gas collection tank (2), the upper surface of gas collection tank (2) just is located swirler mounting panel (3) around with pneumatic installation module (4) fixed connection.
2. The tool for measuring the air flow of the swirler of the gas turbine combustion chamber according to claim 1, characterized in that: the gas collection box (2) is composed of an upper gas collection box (8) and a lower gas collection box (9), the upper gas collection box (8) is connected with the lower gas collection box (9) through a flange, and a rotational flow gas collection pipe (11) is fixedly connected to the side surface of the lower gas collection box (9).
3. The tool for measuring the air flow of the swirler of the gas turbine combustion chamber according to claim 1, characterized in that: fixedly connected with inboard sealing washer (18) between the upper surface of swirler mounting panel (3) and gas collection tank (2), just be located the middle sealing washer (19) of the outside fixedly connected with of inboard sealing washer (18) between the upper surface of swirler mounting panel (3) and gas collection tank (2), just be located the outside fixedly connected with outside sealing washer (20) of middle sealing washer (19) between the upper surface of swirler mounting panel (3) and gas collection tank (2).
4. The tool for gas turbine combustor swirler air flow measurement of claim 2, characterized in that: the lower surface of the swirler mounting plate (3) is fixedly connected with a swirler (12), the lower surface of the swirler (12) is fixedly connected with a swirler plug (13), and the inside of the lower gas collection box (9) is fixedly connected with a honeycomb plate (10).
5. The tool for gas turbine combustor swirler air flow measurement of claim 4, characterized in that: the vortex device sealing device is characterized in that a pressing ejector pin (15) is connected to the lower surface of the vortex device plug (13), a vortex device pressing support (14) is fixedly connected to the surface of the pressing ejector pin (15), and a vortex device pressing support connecting rod (21) is fixedly connected between the vortex device pressing support (14) and the vortex device plug (13).
6. The tool for gas turbine combustor swirler air flow measurement of claim 5, characterized in that: the pressing support (14) is internally provided with a pressing spring (16), the top of the pressing spring (16) is fixedly connected with a convex block on the surface of the pressing thimble (15), and the bottom of the pressing thimble (15) is fixedly connected with a pull ring (17) through a bolt.
7. The tool for gas turbine combustor swirler air flow measurement of claim 2, characterized in that: and 3-6 static pressure measuring points (22) are fixedly connected to the side surface of the upper gas collecting box (8) and close to the edge of the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111187926.2A CN114018346A (en) | 2021-10-12 | 2021-10-12 | Tool for measuring air flow of swirler of combustion chamber of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111187926.2A CN114018346A (en) | 2021-10-12 | 2021-10-12 | Tool for measuring air flow of swirler of combustion chamber of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114018346A true CN114018346A (en) | 2022-02-08 |
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ID=80055771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111187926.2A Withdrawn CN114018346A (en) | 2021-10-12 | 2021-10-12 | Tool for measuring air flow of swirler of combustion chamber of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114018346A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354203A (en) * | 2022-03-18 | 2022-04-15 | 成都中科翼能科技有限公司 | Swirler and nozzle integration performance test device |
-
2021
- 2021-10-12 CN CN202111187926.2A patent/CN114018346A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354203A (en) * | 2022-03-18 | 2022-04-15 | 成都中科翼能科技有限公司 | Swirler and nozzle integration performance test device |
| CN114354203B (en) * | 2022-03-18 | 2022-06-03 | 成都中科翼能科技有限公司 | Swirler and nozzle integration performance test device |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220208 |