CN114112883A - Depth peak regulation unit steam turbine blade particle erosion test system - Google Patents
Depth peak regulation unit steam turbine blade particle erosion test system Download PDFInfo
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- 239000002245 particle Substances 0.000 title claims abstract description 173
- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 230000003628 erosive effect Effects 0.000 title claims abstract description 38
- 238000002156 mixing Methods 0.000 claims abstract description 38
- 238000011084 recovery Methods 0.000 claims abstract description 19
- 239000008187 granular material Substances 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims description 28
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- 230000005514 two-phase flow Effects 0.000 description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention belongs to the technical field of turbine blade erosion tests, and particularly relates to a particle erosion test system for a turbine blade of a deep peak shaving unit. Aiming at the defect that the difference between the movement of particles and the actual situation is large in the particle erosion test of the existing blade erosion test system, the invention adopts the following technical scheme: a degree of depth peak shaver unit steam turbine blade granule erosion test system includes: a blade system including blades secured within the impingement box; a particulate system; a compressed air system; a steam system supplying high temperature and high pressure steam to the mixing tube and the impingement box; a measurement system; and (5) recovering the system. The invention has the beneficial effects that: the compressed air system provides particle and impact power, the steam system provides steam, the real operation environment and the particle environment of the steam turbine are simulated, the recovery system recovers the test particles and the steam to prevent pollution, and the measurement system analyzes the particle temperature and the particle track during the test.
Description
Technical Field
The invention belongs to the technical field of turbine blade erosion tests, and particularly relates to a particle erosion test system for a turbine blade of a deep peak shaving unit.
Background
Steam turbines are important devices for generating electricity, and mainly are rotary power machines which convert steam heat energy of high temperature and pressure into mechanical energy. The blades are key components of the steam turbine and are in a harsh environment for a long time. When the unit is in the deep peak shaving, the blade is especially big to low pressure blade steam humidity, suffers damage easily.
The Chinese patent with the publication number of CN110160946B discloses a deep peak-shaving turbine blade erosion test system and a test method thereof, wherein the system comprises turbine test equipment, a particle erosion system and a liquid drop erosion system; the particle erosion system comprises a particle tank, a vibrating device, a screening device, a weighing machine, a propelling device, a high-frequency electric heating furnace, a mixer and a particle ejector, wherein the vibrating device, the screening device, the weighing machine, the propelling device, the high-frequency electric heating furnace, the mixer and the particle ejector are installed below the particle tank, particles in the particle tank enter the screening device after passing through the vibrating device, the screened particles enter the propelling device through the weighing machine, the propelling device is used for pushing the particles into the high-frequency electric heating furnace, the high-frequency electric heating furnace heats the particles, the heated particles enter the mixer and then enter the particle ejector, and the particle ejector sprays the particles into a test room to perform a particle erosion test. The method can be used for researching the influence of different test conditions on the erosion of the turbine blade, has the advantages of multiple functions, strong applicability and the like, and is particularly suitable for researching the vibration aspect of the deep peak regulation turbine.
The aforesaid test system, although the function is more, but not meticulous enough, for example, just simulate granule erosion when the blade rotates, the propelling movement of granule etc. and actual situation are great difference.
Disclosure of Invention
The invention provides a particle erosion test system of a steam turbine of a deep peak shaving unit, aiming at the defect that the difference between the particle generation motion and the actual situation is larger in the particle erosion test of the existing steam turbine blade erosion test system of the deep peak shaving unit, so that the particle generation and the particle motion can be simulated more truly.
In order to achieve the purpose, the invention adopts the following technical scheme: a particle erosion test system for a turbine blade of a deep peak shaver, the particle erosion test system comprising:
the blade system comprises an impact box and a blade fixed in the impact box through a fixing clamp;
the particle system comprises a particle tank, an electric blast furnace, a draught fan, a cyclone separator, a mixing pipe and an accelerating pipe which are communicated with each other;
the compressed air system is used for blowing high-temperature air into the particle tank, the electric blast furnace, the mixing pipe, the accelerating pipe and the impact box so that particles can reach the impact box through the particle tank, the electric blast furnace, the induced draft fan, the cyclone separator, the mixing pipe and the accelerating pipe;
a steam system supplying high temperature and high pressure steam to the mixing tube and the impingement box;
the measuring system is used for collecting the temperature of the particles and the temperature of the steam, and measuring and analyzing the track and the speed of the particles sprayed out of the accelerating tube;
the recovery system is used for recovering the tested particles and treating the tested steam;
the particle tank is filled with particles, the electric blast furnace heats the particles, the draught fan sends the heated particles into the cyclone separator, the cyclone separator separates the particles and sends the particles into the mixing pipe, the particles are mixed with high-temperature high-pressure steam in the mixing pipe and then enter the accelerating pipe, and the particles are accelerated in the accelerating pipe and then sprayed into the impact box together with the high-temperature high-pressure steam to impact the blades; the device is provided with a measuring system for measuring and analyzing the temperature of the particles, the temperature of the steam, and the track and the speed of the particles; the recovery system is arranged to recover the tested particles and treat the tested steam to prevent pollution.
According to the depth peak shaving unit steam turbine blade particle erosion test system, impact of the blades in a static state is researched, impact of particles on the blades during shutdown is simulated, and the emphasis is placed on researching blade impact; the particles and the high-temperature steam are mixed and accelerated in advance and then sprayed into the impact box, simulation research is carried out on the two-phase flow of the steam particles in real operation, and research is carried out on the complex flow field and the flow rate change of gas and solid in real operation.
The compressed air system comprises an air inlet pipe, a filter, an air inlet manual valve, an inlet electric valve, a screw air compressor, an outlet electric valve, an inlet pneumatic valve, an air storage tank and an outlet pneumatic valve which are communicated, wherein the inlet electric valve, the screw air compressor and the outlet electric valve are connected in parallel, and a safety valve is arranged on the air storage tank.
As an improvement, the compressed air system further comprises an air inlet electromagnetic valve, a dryer, an air outlet electromagnetic valve and a check valve, wherein a drain valve is arranged on the dryer.
As an improvement, the air inlet electromagnetic valve, the dryer and the air outlet electromagnetic valve are connected in parallel, and the compressed air system further comprises a bypass pipe connected in parallel with the air inlet electromagnetic valve, the dryer and the air outlet electromagnetic valve. And a third air electromagnetic valve is arranged on the bypass pipe.
As an improvement, the downstream of the check valve is divided into two main paths, a pressure regulating valve is arranged on one main path, an air pipe at the downstream of the pressure regulating valve is divided into three paths, one path reaches the particle tank, the other path reaches the bottom of the electric blast furnace, the other path is divided into three branches and reaches the upper part of the electric blast furnace, and flow regulating valves are arranged on the three paths.
As an improvement, an air booster pump is arranged on the other main path, an air pipe at the downstream of the air booster pump is divided into three paths, one path reaches the mixing tank through the flow regulating valve, and the other two paths reach the accelerating pipe through the symmetrically arranged jet pipes.
As an improvement, the steam system comprises a steam boiler, steam generated by the steam boiler is divided into two paths, one path of the steam passes through a first steam check valve and a main steam valve and reaches the mixing tank, and the other path of the steam passes through a second steam check valve and a main steam regulating valve and reaches the impact box.
As an improvement, the particle system comprises an outlet pressure reducing valve arranged at the gas outlet end of the cyclone separator, an air purifier and a cyclone separator valve arranged at the solid end of the cyclone separator; a drain valve is arranged on the mixing pipe; the rear part of the accelerating tube is provided with a Laval nozzle structure.
As an improvement, the measurement system comprises a data acquisition analyzer, a particle temperature acquisition line, a steam temperature acquisition line and a data transmission line, wherein the particle temperature acquisition line, the steam temperature acquisition line and the data transmission line are connected with the data acquisition analyzer, the particle temperature acquisition line extends into the electric blast furnace, the steam temperature acquisition line extends into the mixing tube, a particle tracker is arranged in the impact box, and the data transmission line is connected with the ion tracker.
As the improvement, the recovery system comprises an induced draft fan and a cyclone separator which are communicated with the impact box, a pressure reducing valve and an air processor are arranged at the steam end of the cyclone separator in a downward pressing mode, and a cyclone separator valve and a particle recovery tank are arranged at the lower stream of the solid end of the cyclone separator.
The particle erosion test system for the turbine blade of the deep peak shaving unit has the beneficial effects that: the compressed air system provides power for particles and impact, the steam system provides steam to simulate the real operation environment and particle environment of the steam turbine, the recovery system recovers the test particles and the steam to prevent pollution, the particle system comprises particles and other operation equipment, and the measurement system analyzes the particle temperature and particle track during the test; the method comprises the following steps of (1) enabling a blade to be static, researching the impact of the blade in a static state, simulating the impact of particles on the blade when the machine is stopped, and focusing on researching the impact of the blade; the device is provided with a steam system, the particles and high-temperature steam are mixed and accelerated in advance and then are sprayed into the impact box, simulation research is carried out on the two-phase flow of the steam particles in real operation, and research is carried out on the complex gas-solid flow field and the flow rate change in real operation.
Drawings
Fig. 1 is a schematic structural diagram of a testing system according to a first embodiment of the present invention.
In the figure, 0, particle trajectory;
1. a filter; 1-1, an air inlet pipe; 1-2, an air inlet manual valve;
2. a first screw air compressor; 2-1, a first inlet electric valve; 2-2, a first outlet electric valve;
3. a second screw air compressor; 3-1, a second inlet electric valve; 3-2, a second outlet electric valve;
4. a gas storage tank; 4-1, an inlet pneumatic valve; 4-2, a safety valve; 4-3, outlet pneumatic valve;
5. a first dryer; 5-1, a first air inlet solenoid valve; 5-2, a first outlet air solenoid valve; 5-3, a bypass pipe; 5-4, a third air solenoid valve; 5-5, a first drain valve;
6. a second dryer; 6-1, a second air solenoid valve; 6-2, a second air outlet solenoid valve; 6-3, a second drain valve;
7. a particle tank; 7-1, check valve; 7-2, a pressure regulating valve; 7-3, a first air pipe; 7-4, a second air pipe; 7-5, a first flow regulating valve; 7-6, a third air pipe; 7-7, a second flow regulating valve; 7-8, a third flow regulating valve; 7-9 parts of an air inlet pipe; 7-10 parts of an air inlet main pipe;
8. an electric blast furnace; 8-1, F3O4Particles;
9, a steam boiler; 9-1, a first steam check valve; 9-2, a main steam valve; 9-3, a second steam check valve; 9-4, a main steam regulating valve;
10. an air booster pump; 10-1, a fourth flow regulating valve; 10-2, spraying a main pipe; 10-3, an injection pipe; 10-4, adjusting the jet flow;
11. a first induced draft fan;
12. a first cyclone separator; 12-1, an outlet pressure reducing valve; 12-2, an air purifier; 12-3, a first cyclone valve;
13. a mixing tube; 13-1, a drain valve;
14. an accelerating tube;
15. a blade;
16. an impingement box;
17. fixing the clamp;
18. a data acquisition analyzer; 18-1, a particle temperature collection line; 18-2, a steam temperature collection line; 18-3, a data transmission line; 18-4, a particle tracker;
19. a second cyclone separator; 19-1 and a second induced draft fan; 19-2, an air processor; 19-3, a recovery pressure reducing valve; 19-4, discharging an air pipe; 19-5, a particle recovery tank; 19-6 and a second cyclone separator valve.
Detailed Description
The technical solutions of the embodiments of the present invention will be explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and are not all embodiments. Other embodiments obtained by persons skilled in the art without any inventive work based on the embodiments in the embodiment belong to the protection scope of the invention.
Referring to fig. 1, a particle erosion test system for a steam turbine blade of a deep peak shaver according to a first embodiment of the present invention includes:
a blade 15 system comprising an impingement box 16 and a blade 15 secured within said impingement box 16 by a securing clamp 17;
the particle system comprises a particle tank 7, an electric blast furnace 8, a first induced draft fan 11, a cyclone separator, a mixing pipe 13 and an accelerating pipe 14 which are communicated with each other;
the compressed air system blows high-temperature air into the particle tank 7, the electric blast furnace 8, the mixing pipe 13, the accelerating pipe 14 and the impact box 16, so that particles reach the impact box 16 through the particle tank 7, the electric blast furnace 8, the first induced draft fan 11, the cyclone separator, the mixing pipe 13 and the accelerating pipe 14;
a steam system for supplying high-temperature and high-pressure steam to the mixing pipe 13 and the impingement box 16;
the measuring system is used for collecting the temperature of the particles and the temperature of the steam, and measuring and analyzing the track and the speed of the particles sprayed out of the accelerating tube 14;
the recovery system is used for recovering the tested particles and treating the tested steam;
the particle tank 7 is filled with particles, the electric blast furnace 8 heats the particles, the first induced draft fan 11 sends the heated particles into the cyclone separator, the cyclone separator separates the particles and sends the particles into the mixing pipe 13, the particles are mixed with high-temperature high-pressure steam in the mixing pipe 13 and then enter the accelerating pipe 14, and the particles are accelerated in the accelerating pipe 14 and then sprayed into the impact box 16 together with the high-temperature high-pressure steam to impact the blades 15; the device is provided with a measuring system for measuring and analyzing the temperature of the particles, the temperature of the steam, and the track and the speed of the particles; the recovery system is arranged to recover the tested particles and treat the tested steam to prevent pollution.
According to the particle erosion test system for the turbine blade 15 of the deep peak shaving unit, impact of the blade 15 in a static state is researched, impact of particles on the blade 15 during shutdown is simulated, and the impact of the particles on the blade 15 is mainly researched; the particles and the high-temperature steam are mixed and accelerated in advance and then are sprayed into the impact box 16, simulation research is carried out on the two-phase flow of the steam particles in real operation, and research is carried out on the complex flow field and the flow rate change of gas and solid in real operation.
In the embodiment, the compressed air system comprises an air inlet pipe 1-1, a filter 1, an air inlet manual valve 1-2, an inlet electric valve, a screw air compressor, an outlet electric valve, an inlet pneumatic valve 4-1, an air storage tank 4 and an outlet pneumatic valve 4-3 which are communicated with each other. Two groups of inlet electric valves, two groups of screw rod air compressors and two groups of outlet electric valves are connected in parallel, and a safety valve 4-2 is arranged on the air storage tank 4. The inlet electric valve comprises a first inlet electric valve 2-1 and a second inlet electric valve 3-23-1, the screw air compressor comprises a first screw air compressor 2 and a second screw air compressor 3, and the outlet electric valve comprises a first outlet electric valve 2-2 and a second outlet electric valve 3-2.
In this embodiment, the compressed air system further comprises an air inlet electromagnetic valve, a dryer, an air outlet electromagnetic valve and a check valve 7-1, wherein a drain valve 13-1 is arranged on the dryer.
In this embodiment, the air inlet solenoid valve, the dryer, and the air outlet solenoid valve are connected in parallel, the compressed air system further includes a bypass pipe 5-3 connected in parallel with the air inlet solenoid valve, the dryer, and the air outlet solenoid valve, and a third air solenoid valve 5-4 is disposed on the bypass pipe 5-3. The air inlet solenoid valves include a first air inlet solenoid valve 5-1 and a second air inlet solenoid valve, the dryers include a first dryer 5 and a second dryer 6, and the air outlet solenoid valves include a first air outlet solenoid valve and a second air outlet solenoid valve 6-2.
In this embodiment, the downstream of the check valve 7-1 is divided into two main paths, one main path is provided with a pressure regulating valve 7-2, the air pipe at the downstream of the pressure regulating valve 7-2 is divided into three paths, one path reaches the particle tank 7 through a second air pipe 7-4, the other path reaches the bottom of the electric blast furnace 8 through a first air pipe 7-3, the other path reaches the middle-high part of the electric blast furnace 8 through three branches after passing through the first air pipe 7-3, and the three paths are provided with flow regulating valves.
In this embodiment, the other main path is a third air pipe 7-6, an air booster pump 10 is disposed on the third air pipe 7-6, the air pipe at the downstream of the air booster pump 10 is divided into three paths, one path reaches the mixing tank through a flow regulating valve, and the other two paths reach the accelerating pipe 14 through symmetrically disposed injection pipes 10-3.
In this embodiment, the steam system includes a steam boiler 9, and the steam generated by the steam boiler 9 is divided into two paths, one path of the steam passes through a first steam check valve 9-1 and a main steam valve 9-2 and reaches the mixing tank, and the other path of the steam passes through a second steam check valve 9-3 and a main steam regulating valve 9-4 and reaches the impact tank 16.
In this embodiment, the particle system includes an outlet pressure reducing valve 12-1 arranged at the outlet end of the cyclone separator, an air purifier 12-2 and a cyclone separator valve arranged at the solid end of the cyclone separator, the solid end of the cyclone separator is provided with a first cyclone separator 12 valve, and particles pass through the first cyclone separator 12 valve and then enter a mixing pipe 13; a drain valve 13-1 is arranged on the mixing pipe 13; the rear part of the accelerating tube 14 is of a Laval nozzle structure.
In the embodiment, the measurement system comprises a data acquisition analyzer 18, a particle temperature acquisition line connected with the data acquisition analyzer 18, a steam temperature acquisition line 18-2 and a data transmission line 18-3, wherein the particle temperature acquisition line extends into the blast furnace 8, the steam temperature acquisition line 18-2 extends into the mixing pipe 13, a particle tracker 18-4 is arranged in the impact box 16, and the data transmission line 18-3 is connected with the ion tracker.
In this embodiment, the recovery system includes with the communicating second draught fan 19-1 and the second cyclone 19 of impingement box 16, cyclone's steam end pushes down and is equipped with relief pressure valve and air handler 19-2, and cyclone's solid end downstream is equipped with second cyclone 19 valve and granule recovery jar.
In this embodiment, the operation is substantially as follows.
And opening the air inlet manual valve 1-2, the first inlet electric valve 2-1 and the first outlet electric valve 2-2, and closing the second inlet electric valve 3-1 and the second outlet electric valve 3-2 for standby. The granule tank 7 is filled with F3O4The particles are heated by injecting water into the steam boiler 9.
And starting the first screw air compressor 2, and enabling air to enter the filter 1 through the air inlet pipe 1-1 to filter impurities. Air passes through the first screw air compressor 2, then is subjected to pressurization and heating treatment, and enters the air storage tank 4 through the first outlet electric valve 2-2 and the inlet pneumatic valve 4-1 to be stored. When the first screw air compressor 2 works for a period of time and 70% -80% of compressed air is stored in the air storage tank 4, the outlet pneumatic valve 4-3 is opened, and air flows out.
And opening the first inlet air electromagnetic valve, the first outlet air electromagnetic valve 5-2, the second air electromagnetic valve 6-1 and the second air outlet electromagnetic valve 6-2, and allowing air to enter the first dryer 5 and the second dryer 6 for drying treatment. Wherein the bottom of the dryer is provided with a first drain valve 13-15-5 and a second drain valve 13-16-3 for draining water. The dried air passes through the check valve 7-1 to prevent the reverse flow of the air.
And opening the second flow regulating valve 7-7, introducing air into the particle tank 7, flushing particles in the particle tank 7 into the electric blast furnace 8, and then starting the electric blast furnace 8 to heat the particles.
In the heating process, the third flow regulating valve 7-8 can be opened, air enters the air inlet main pipe 7-10, then enters the three air inlet pipes 7-9, and finally enters the hearth, particles are blown away, and the particles are uniformly heated. The particle temperature is collected by a temperature collection line.
The steam boiler 9 is started, after the steam boiler 9 heats the water vapor to a specified temperature, the first steam check valve 9-1, the main steam valve 9-2, the second steam check valve 9-3 and the main steam regulating valve 9-4 are opened, the steam is divided into two paths, one path enters the mixing pipe 13, and the other path enters the impact box 16. The steam temperature is measured using the steam temperature collection line 18-2. The impingement box 16 is filled with steam to simulate the turbine operating environment.
When the temperature of the particles is heated to the designated temperature, and the temperature of the mixing pipe 13 and the impact box 16 reaches the specific temperature, the second flow regulating valve 7-7 is opened, air is blown into the hearth at high speed, and the particles are blown to the tail part of the hearth. A first induced draft fan 11 is opened, particles and air enter a first cyclone separator 12, the particles and the air are separated by the first cyclone separator 12, and impurities such as the air and flue gas enter an air purifier 12-2 for purification. The separated particles enter the mixing pipe 13 to be mixed by steam.
After the particles are mixed with the air for a period of time, the air booster pump 10 is started to boost the air, the fourth flow regulating valve 10-1 is opened, and the particles are blown into the accelerating tube 14. And opening the jet flow regulating valve 10-4, regulating the air flow rate and the flow rate, and jetting the particles and steam into the impact box 16 at a high speed to impact the blades 15. And simultaneously, a second induced draft fan 19-1 is opened, steam is introduced into a second cyclone separator 19 to be separated from particles, the steam enters an air processor 19-2 through a recovery pressure reducing valve 19-3, and the particles enter a particle recovery tank 19-5 through a second cyclone separator 19 valve.
During the test, if the air quantity is insufficient, the second screw air compressor 3 can be started to supplement the air. When the air quantity in the air storage tank 4 is overlarge, the air is discharged through the safety valve 4-2. When the air flow is too fast, the air flows through the bypass duct 5-3.
During the test, the drain valve 13-1 can drain the cooling water in the mixing pipe 13.
In the test process, the air flow rate can be adjusted through the jet flow adjusting valve 10-4, and impact tests with different particle speeds are carried out.
After the test was completed, the equipment was shut down and the equipment through which the particles flowed was flushed.
The particle erosion test system for the turbine blade 15 of the deep peak shaving unit in the embodiment of the invention has the beneficial effects that: the system comprises a compressed air system, a steam system, a recovery system, a particle system, a measurement system and a test system, wherein the compressed air system provides particle and impact power, the steam system provides steam to simulate the real operation environment and particle environment of a steam turbine, the recovery system recovers test particles and steam to prevent pollution, the particle system comprises particles and other operation equipment, and the measurement system analyzes the particle temperature and particle track during the test; the method comprises the following steps of (1) enabling a blade 15 to be static, researching the impact of the blade 15 in a static state, simulating the impact of particles on the blade 15 during shutdown, and emphasizing on researching the impact of the blade 15; the device is provided with a steam system, the particles and high-temperature steam are mixed and accelerated in advance and then are sprayed into the impact box 16, simulation research is carried out on two-phase flow of the steam particles in real operation, and research is carried out on gas-solid complex flow field and flow rate change in real operation; the real particle erosion impact environment can be simulated, and the damage of particles to the blades 15 can be researched; by measuring and adjusting working parameters such as temperature, pressure and flow, the conditions of the blades 15 under different particle speeds, diameters and densities can be analyzed, particle tracks are researched, track analysis is carried out, and references are provided for blade 15 design and corrosion prevention damage.
While the invention has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the invention is not limited thereto but is intended to cover all modifications and equivalents as may be included within the spirit and scope of the invention. Any modification which does not depart from the functional and structural principles of the invention is intended to be included within the scope of the following claims.
Claims (10)
1. The utility model provides a degree of depth peak shaver steam turbine blade granule erosion test system which characterized in that: the particle erosion test system includes:
a blade system comprising an impingement box (16) and a blade (15) secured within the impingement box (16) by a securing clamp (17);
the particle system comprises a particle tank (7), an electric blast furnace (8), an induced draft fan, a cyclone separator, a mixing pipe (13) and an accelerating pipe (14) which are communicated with each other;
the compressed air system is used for blowing high-temperature air into the particle tank (7), the electric blast furnace (8), the mixing pipe (13), the accelerating pipe (14) and the impact box (16) so that particles can reach the impact box (16) through the particle tank (7), the electric blast furnace (8), the induced draft fan, the cyclone separator, the mixing pipe (13) and the accelerating pipe (14);
a steam system for supplying high-temperature, high-pressure steam to the mixing pipe (13) and the impingement box (16);
the measuring system is used for collecting the temperature of the particles and the temperature of the steam, and measuring and analyzing the track and the speed of the particles sprayed out of the accelerating pipe (14);
the recovery system is used for recovering the tested particles and treating the tested steam;
wherein, pack the granule in granule jar (7), electric blast furnace (8) heat the granule, the granule after the draught fan will heat is sent into cyclone, cyclone separates and sends into mixing tube (13) with the granule, and the granule gets into accelerating tube (14) after mixing with high temperature high pressure steam in mixing tube (13), and the granule is sprayed into surge tank (16) with high temperature high pressure steam after being accelerated in accelerating tube (14), strikes blade (15).
2. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 1, wherein: the compressed air system comprises an air inlet pipe (1-1), a filter (1), an air inlet manual valve (1-2), an inlet electric valve, a screw air compressor, an outlet electric valve, an inlet pneumatic valve (4-1), an air storage tank (4) and an outlet pneumatic valve (4-3), wherein the air inlet pipe, the filter (1), the air inlet manual valve, the inlet electric valve, the screw air compressor, the outlet electric valve, the inlet pneumatic valve (4-1), the air storage tank (4) and the outlet pneumatic valve are communicated, the inlet electric valve, the screw air compressor and the outlet electric valve are connected in parallel, and a safety valve (4-2) is arranged on the air storage tank (4).
3. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 2, wherein: the compressed air system also comprises an air inlet electromagnetic valve, a dryer, an air outlet electromagnetic valve and a check valve (7-1), wherein a drain valve (13-1) is arranged on the dryer.
4. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 3, wherein: the compressed air system comprises an air inlet electromagnetic valve, a dryer and an air outlet electromagnetic valve, wherein the air inlet electromagnetic valve, the dryer and the air outlet electromagnetic valve are connected in parallel, the compressed air system further comprises a bypass pipe (5-3) connected with the air inlet electromagnetic valve, the dryer and the air outlet electromagnetic valve in parallel, and the air electromagnetic valve is arranged on the bypass pipe (5-3).
5. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 3, wherein: the downstream of the check valve (7-1) is divided into two main paths, a pressure regulating valve (7-2) is arranged on one main path, an air pipe at the downstream of the pressure regulating valve (7-2) is divided into three paths, one path reaches the particle tank (7), the other path reaches the bottom of the electric blast furnace (8), the other path is divided into three branches and reaches the middle-high part of the electric blast furnace (8), and flow regulating valves are arranged on the three paths.
6. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 5, wherein: the other main path is provided with an air booster pump (10), an air pipe at the downstream of the air booster pump (10) is divided into three paths, one path reaches the mixing tank through a flow regulating valve, and the other two paths reach an accelerating pipe (14) through symmetrically arranged jet pipes (10-3).
7. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 1, wherein: the steam system comprises a steam boiler (9), steam generated by the steam boiler (9) is divided into two paths, one path of steam reaches the mixing tank through a first steam check valve (9-1) and a main steam valve (9-2), and the other path of steam reaches the impact tank (16) through a second steam check valve (9-3) and a main steam regulating valve (9-4).
8. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 1, wherein: the particle system comprises an outlet pressure reducing valve (12-1) arranged at the air outlet end of the cyclone separator, an air purifier (12-2) and a cyclone separator valve arranged at the solid end of the cyclone separator; a drain valve (13-1) is arranged on the mixing pipe (13); the rear part of the accelerating tube (14) is of a Laval nozzle structure.
9. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 1, wherein: the measurement system comprises a data acquisition analyzer (18), a particle temperature acquisition line (18-1) connected with the data acquisition analyzer (18), a steam temperature acquisition line (18-2) and a data transmission line (18-3), wherein the particle temperature acquisition line (18-1) extends into the electric blast furnace (8), the steam temperature acquisition line (18-2) extends into the mixing pipe (13), a particle tracker (18-4) is arranged in the impact box (16), and the data transmission line (18-3) is connected with the ion tracker.
10. The system for testing particle erosion of the blades of the steam turbine of the deep peak shaver set according to claim 1, wherein: the recovery system comprises an induced draft fan and a cyclone separator which are communicated with the impact box (16), a pressure reducing valve (19-3) and an air processor (19-2) are arranged at the steam end of the cyclone separator in a downward pressing mode, and a cyclone separator valve and a particle recovery tank are arranged at the downstream of the solid end of the cyclone separator.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012047117A (en) * | 2010-08-27 | 2012-03-08 | Toshiba Corp | Method and apparatus for preventing corrosion of geothermal turbine facilities, and component of geothermal turbine |
| CN103170483A (en) * | 2013-03-13 | 2013-06-26 | 江西省电力科学研究院 | Experiment device for purging oxide skin in boiler tube of power station |
| CN203758890U (en) * | 2014-03-03 | 2014-08-06 | 华东理工大学 | Multi-phase erosive wear test platform in wet steam environment |
| CN209182181U (en) * | 2018-09-19 | 2019-07-30 | 江苏大学镇江流体工程装备技术研究院 | A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment |
| CN210221779U (en) * | 2019-05-06 | 2020-03-31 | 中国科学院金属研究所 | High-temperature steam corrosion test device |
| CN113176081A (en) * | 2021-03-03 | 2021-07-27 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Historical data-based turbine blade wear monitoring method |
| CN110160946B (en) * | 2019-05-24 | 2021-08-03 | 国网浙江省电力有限公司电力科学研究院 | Deep peak regulation steam turbine blade erosion test system and test method thereof |
-
2021
- 2021-11-29 CN CN202111435025.0A patent/CN114112883B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012047117A (en) * | 2010-08-27 | 2012-03-08 | Toshiba Corp | Method and apparatus for preventing corrosion of geothermal turbine facilities, and component of geothermal turbine |
| CN103170483A (en) * | 2013-03-13 | 2013-06-26 | 江西省电力科学研究院 | Experiment device for purging oxide skin in boiler tube of power station |
| CN203758890U (en) * | 2014-03-03 | 2014-08-06 | 华东理工大学 | Multi-phase erosive wear test platform in wet steam environment |
| CN209182181U (en) * | 2018-09-19 | 2019-07-30 | 江苏大学镇江流体工程装备技术研究院 | A kind of pump inside corrosive wear experimental bench for simulating underground high-temperature bittern environment |
| CN210221779U (en) * | 2019-05-06 | 2020-03-31 | 中国科学院金属研究所 | High-temperature steam corrosion test device |
| CN110160946B (en) * | 2019-05-24 | 2021-08-03 | 国网浙江省电力有限公司电力科学研究院 | Deep peak regulation steam turbine blade erosion test system and test method thereof |
| CN113176081A (en) * | 2021-03-03 | 2021-07-27 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Historical data-based turbine blade wear monitoring method |
Non-Patent Citations (2)
| Title |
|---|
| 孙通 等: "汽轮机喷嘴固体颗粒冲蚀的数值分析及预防措施", 中国煤炭, vol. 40, no. 1, 22 September 2014 (2014-09-22), pages 274 - 276 * |
| 王顺森 等: "汽轮机喷嘴固粒冲蚀模化试验系统及测试方法", 中国电机工程学报, no. 11, 15 April 2007 (2007-04-15), pages 103 - 108 * |
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