Optical Measurement Device for Spray Characteristics of Gas Turbine Combustion Chamber Based on Window Heating

Abstract

This invention belongs to the technical field of gas turbine combustion chamber test devices, and discloses an optical measurement device for the spray characteristics of a gas turbine combustion chamber based on window heating. The device includes a combustion chamber, with an inner groove annular plate installed on one side of the top of the combustion chamber. An annular sliding plate is rotatably connected to one side of the inner cavity of the annular plate, and an annular rack is fixedly connected to one side of the annular sliding plate. In this invention, turning on the motor causes the annular rack to mesh with a gear, driving a threaded rod to rotate. As the threaded rod rotates, it causes a slider to slide within the output groove. This slider then moves a moving plate and a metal scraper. The metal scraper, through the elasticity of a spring, contacts the surface of the inner layer of the double-layered glass. During movement, the metal scraper cleans the carbon deposits adhering to the inner layer of the double-layered glass, preventing these deposits from affecting the clarity of the optical measurements.

Description

Technical Field

[0001] This invention belongs to the technical field of gas turbine combustion chamber test equipment, specifically an optical measurement device for spray characteristics of gas turbine combustion chamber based on window heating. Background Technology

[0002] The fuel atomization and fuel-air mixing process within the gas turbine combustor, as the initial stage of the combustion process, significantly impacts the combustion efficiency, combustion stability, and pollutant emissions. However, current fuel atomization theories are still incomplete. The atomization process within the complex aerodynamic conditions of the gas turbine combustor is affected by strong turbulence, multi-stage swirls, and other complex aerodynamic conditions. The processes of liquid film breakup, flow, evaporation, and mixing exhibit highly unsteady characteristics and complex phase interface structures. Atomization has gradually become one of the key issues restricting aero-engine combustion technology. Experimental research on the atomization process is intuitive, realistic, and reliable. Conducting spray characteristic experiments using optical visualization techniques to obtain details of the atomization process and the influence of typical controllable conditions on the fuel atomization mixing process is of great significance for gas turbine combustor design. However, achieving the fuel atomization mixing process and obtaining images of the atomization process within a confined space is extremely difficult. Multiple methods are needed to protect optical instruments from the effects of fuel phase change, which could lead to the formation of a liquid film on the instrument surface and affect its optical performance.

[0003] However, due to the incomplete combustion of fuel in the combustion chamber, the resulting carbonaceous material is deposited on the surface of the viewing window. Under high temperature and incomplete combustion conditions, this carbonaceous material forms solid carbon particles through pyrolysis or incomplete oxidation. As the airflow and temperature change, these particles adhere to the surface of the viewing window and gradually form a carbon deposit layer, thereby obscuring the viewing window, affecting the clarity of optical measurements, and potentially causing damage to the viewing window surface or a decrease in performance. Summary of the Invention

[0004] To address the problem mentioned in the background art that solid carbon particles are formed by pyrolysis or incomplete oxidation reactions, and that these particles adhere to the surface of the viewing window as the airflow and temperature change, gradually forming a carbon deposit layer, thereby obscuring the viewing window, affecting the clarity of optical measurements, and potentially causing damage to the viewing window surface or performance degradation, this invention provides an optical measurement device for the spray characteristics of a gas turbine combustion chamber based on viewing window heating.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating, comprising a combustion chamber, wherein an inner groove annular plate is installed on one side of the top of the combustion chamber, an annular slide plate rotatably connected to one side of the inner cavity of the inner groove annular plate, an annular rack 1 is fixedly connected to one side of the annular slide plate 1, an annular slide plate 2 is fixedly connected to the side of the annular slide plate 1 away from the annular rack 1, an annular rack 2 is fixedly connected to one side of the inner wall of the annular slide plate 2, a connecting frame is penetrated and fixedly connected to one side of the outer wall of the inner groove annular plate, a motor is installed on the top of the combustion chamber away from the inner groove annular plate, a gear 1 is fixedly connected to the output end of the motor through the connecting frame, and the gear 1 meshes with the annular rack 1, four sets of threaded rods are penetrated and rotatably connected to the side of the inner groove annular plate away from the connecting frame, a gear 2 is fixedly connected to one side of the outer wall of the threaded rod, and the gear 2 meshes with the annular rack 2, and four sets of optical measurement mounting plates are installed on the four sides of the outer wall of the combustion chamber;

[0006] A double-layered glass outer layer is installed through the middle of a set of optical measurement mounting plates. An air heating chamber is provided at the bottom of the double-layered glass outer layer. A vacuum insulation layer is provided on the side of the air heating chamber away from the double-layered glass outer layer that passes through the combustion chamber. A double-layered glass inner layer is installed on the side of the vacuum insulation layer away from the air heating chamber.

[0007] Preferably, a set of optical measurement mounting plates has connecting grooves on both sides of its bottom. A connecting box is fixedly connected to the inner cavity of each of the two connecting grooves, and the bottom of the connecting box penetrates the combustion chamber. An output groove is opened in the inner cavity of one of the connecting boxes, and a slider is slidably connected to the inner cavity of the output groove. The outer wall of the threaded rod away from the gear two passes through the connecting box and is rotatably connected. The threaded rod is threadedly connected to the slider. A sliding groove is opened on one side of the bottom between the two connecting boxes. A moving plate passes through the sliding groove and is fixedly connected to the two sliders. A spring groove is opened in the inner cavity of the moving plate. A spring is fixedly connected to the inner cavity of the spring groove. A metal scraper is fixedly connected to the top of the spring, and the metal scraper passes through the moving plate and is in contact with the inner layer of the double-layer glass.

[0008] Preferably, a U-shaped plate is fixedly connected to one side of the outer wall of the combustion chamber between the two connecting boxes. A V-shaped rod is fixedly connected to the inner wall of the U-shaped plate. A spring is sleeved on the outer wall of the V-shaped rod. Two collars are slidably connected to the middle of the outer wall of the V-shaped rod, and one side of the collar is fixedly connected to one side of the spring. An anti-cleaning rod is fixedly connected to one side of the outer wall of the two collars, and the anti-cleaning rod abuts against the metal scraper.

[0009] Preferably, two abutment blocks are fixedly connected to the bottom sides of one side of the slider, and the abutment blocks slide within the groove.

[0010] Preferably, a plurality of abutment blocks 1 are slidably connected to the inner cavity of one side of the slide groove, and abutment blocks 1 abut against abutment blocks 2. Two connecting rods are slidably connected to the top of the plurality of abutment blocks 1. A spring 2 is sleeved on the outer wall of the connecting rod, and one side of the spring 2 is fixedly connected to the top of the abutment blocks 1.

[0011] Preferably, the side of the second spring away from the first contact block is fixedly connected to the top of the inner cavity of the slide groove.

[0012] Preferably, a heated air exhaust port is installed through and installed on one side of the top of the four sets of double-layered glass outer layers, and a square tube is installed at the end of the four heated air exhaust ports away from the double-layered glass outer layers. A connection port is installed on the top of the side of the square tube away from the heated air exhaust port.

[0013] Preferably, an exhaust section is installed at one end of the combustion chamber, and a flange is fixedly connected to the side of the exhaust section away from the combustion chamber.

[0014] Preferably, an intake section is installed at the end of the combustion chamber away from the exhaust section, a fuel pipe connection end is installed through the outer wall of the intake section, and a flange is fixedly connected to the side of the intake section away from the combustion chamber.

[0015] Preferably, a pressure regulating valve is provided on the side of the outer wall of the combustion chamber away from the motor.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention, through the coordination of a motor and a metal scraper, avoids carbon buildup on the surface of the inner layer of double-glazed glass, which could affect the clarity of optical measurements. When the motor is turned on, gear one rotates, and simultaneously gear one meshes with an annular rack one, causing annular slide plate one, annular slide plate two, and annular rack two to rotate simultaneously. Annular rack two meshes with gear two, causing a threaded rod to rotate. As the threaded rod rotates, it causes a slider to slide within the output slot. This slider, in turn, moves a moving plate and a metal scraper. The metal scraper, propelled by a spring, contacts the surface of the inner layer of double-glazed glass, scraping away the carbon buildup on the surface during movement.

[0018] This invention, through the combination of a U-shaped plate and a contact cleaning rod, can clean the carbon deposits adhering to the metal scraper after cleaning. After the metal scraper has cleaned the carbon deposits adhering to the inner surface of the double-layer glass, it continues to move forward until the metal scraper contacts the contact cleaning rod. At this time, the contact cleaning rod will cause the collar to move the contact cleaning rod away from each other through the contact force, and at the same time, the spring triple influence is compressed. At this time, the contact cleaning rod can clean the carbon deposits adhering to the metal scraper after cleaning.

[0019] This invention, through the cooperation of structures such as contact block one and contact block two, can prevent carbon deposits from falling into the output slot and affecting the sliding of the slider in the output slot. When the slider moves, it will drive contact block two to move. At this time, contact block two will abut against contact block one, causing contact block one to slide upward and compressing spring two. When contact block two passes contact block one, contact block one will be reset by the elastic force of spring two. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the pressure regulating valve of the present invention;

[0022] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the optical measurement mounting plate of the present invention;

[0024] Figure 5 This is a schematic diagram of the connecting groove of the present invention;

[0025] Figure 6 This is a schematic diagram of the output slot of the present invention;

[0026] Figure 7 This is a schematic diagram of the slider of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged view at point B in the middle;

[0028] Figure 9 This is a schematic diagram of the groove of the present invention;

[0029] Figure 10 For the present invention Figure 9 Enlarge the image at point C;

[0030] Figure 11 This is a top cross-sectional view of the U-shaped plate of the present invention.

[0031] In the diagram: 1. Combustion chamber; 2. Inner groove annular plate; 3. Annular slide plate one; 4. Annular rack one; 5. Annular slide plate two; 6. Annular rack two; 7. Motor; 8. Connecting frame; 9. Gear one; 10. Threaded rod; 11. Gear two; 12. Optical measurement mounting plate; 13. Outer double-layer glass; 14. Air heating chamber; 15. Vacuum insulation layer; 16. Inner double-layer glass; 17. Connecting groove; 18. Connecting box; 19. Output groove; 20. Slider; 21. Moving plate; 22. 23. Spring groove; 24. Spring 1; 25. Metal scraper; 26. Slide groove; 27. Connecting rod; 28. Spring 2; 29. ​​Abutting block 1; 20. Abutting block 2; 31. U-shaped plate; 32. V-shaped rod; 33. Spring 3; 34. Collar; 35. Abutting cleaning rod; 36. Heated air exhaust port; 37. Square tube; 38. Connection port; 39. Exhaust section; 40. Flange 1; 41. Intake section; 42. Fuel pipe connection end; 43. Flange 2; 44. Pressure regulating valve. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 11 As shown, this invention provides an optical measurement device for the spray characteristics of a gas turbine combustion chamber based on window heating, including a combustion chamber 1. An inner groove annular plate 2 is installed on one side of the top of the combustion chamber 1. An annular slide plate 3 is rotatably connected to one side of the inner cavity of the inner groove annular plate 2. An annular rack 4 is fixedly connected to one side of the annular slide plate 3. An annular slide plate 5 is fixedly connected to the side of the annular slide plate 3 away from the annular rack 4. An annular rack 6 is fixedly connected to one side of the inner wall of the annular slide plate 2. The outer wall of the inner groove annular plate 2 extends through... A connecting frame 8 is fixedly connected to the combustion chamber 1. A motor 7 is installed on the top of the combustion chamber 1 away from the inner groove annular plate 2. The output end of the motor 7 passes through the connecting frame 8 and is fixedly connected to a gear 9. The gear 9 meshes with the annular rack 4. Four sets of threaded rods 10 are rotatably connected to the inner groove annular plate 2 away from the connecting frame 8. A gear 11 is fixedly connected to one side of the outer wall of the threaded rod 10. The gear 11 meshes with the annular rack 6. Four sets of optical measurement mounting plates 12 are installed on the four sides of the outer wall of the combustion chamber 1.

[0034] A double-layered glass outer layer 13 is installed through the middle of a set of optical measurement mounting plates 12. An air heating chamber 14 is provided at the bottom of the double-layered glass outer layer 13. The side of the air heating chamber 14 away from the double-layered glass outer layer 13 passes through the combustion chamber 1 and is provided with a vacuum insulation layer 15. The side of the vacuum insulation layer 15 away from the air heating chamber 14 is provided with a double-layered glass inner layer 16.

[0035] A set of optical measurement mounting plates 12 has connecting grooves 17 on both sides of its bottom. Connecting boxes 18 are fixedly connected to the inner cavities of the two connecting grooves 17. The bottom of the connecting boxes 18 passes through the combustion chamber 1. An output groove 19 is opened in the inner cavity of one side of the connecting box 18. A slider 20 is slidably connected to the inner cavity of the output groove 19. The outer wall of the threaded rod 10, away from the gear 11, passes through the connecting box 18 and is rotatably connected. The threaded rod 10 is threadedly connected to the slider 20. A sliding groove 25 is opened on the bottom of one side between the two connecting boxes 18. A moving plate 21 is fixedly connected between the two sliders 20 through the sliding groove 25. A spring groove 22 is opened in the inner cavity of the moving plate 21. A spring 23 is fixedly connected to the inner cavity of the spring groove 22. A metal scraper 24 is fixedly connected to the top of the spring 23. The metal scraper 24 passes through the moving plate 21 and is attached to the inner layer 16 of the double-layer glass.

[0036] Using the above scheme: when carbon deposits are attached to the inner layer 16 of the double-layer glass after combustion, the motor 7 is turned on to make gear 9 rotate. At the same time, gear 9 meshes with the ring rack 4, which drives the ring slide plate 3, the ring slide plate 5 and the ring rack 6 to rotate simultaneously. The ring rack 6 meshes with gear 11, which drives the threaded rod 10 to rotate. When the threaded rod 10 rotates, it drives the slider 20 to slide in the output groove 19. At this time, the slider 20 will drive the moving plate 21 and the metal scraper 24 to move.

[0037] At this time, the metal scraper 24 is brought into contact with the surface of the inner layer 16 of the double-layer glass by the elastic force of the spring 23. When moving, the metal scraper 24 scrapes and cleans the carbon deposits attached to the surface of the inner layer 16 of the double-layer glass. The carbon deposits attached to the surface of the inner layer 16 of the double-layer glass affect the clarity of optical measurement.

[0038] like Figures 1 to 11 As shown, a U-shaped plate 30 is fixedly connected to one side of the outer wall of the combustion chamber 1 between the two connecting boxes 18. A V-shaped rod 31 is fixedly connected to the inner wall of the U-shaped plate 30. A spring 32 is sleeved on the outer wall of the V-shaped rod 31. Two collars 33 are slidably connected to the middle of the outer wall of the V-shaped rod 31, and one side of the collar 33 is fixedly connected to one side of the spring 32. An anti-cleaning rod 34 is fixedly connected to one side of the outer wall of the two collars 33, and the anti-cleaning rod 34 abuts against the metal scraper 24.

[0039] Using the above solution: After the metal scraper 24 has cleaned the carbon deposits on the inner layer 16 of the double-layer glass, it continues to move forward so that the metal scraper 24 comes into contact with the cleaning rod 34. At this time, the cleaning rod 34 will move away from each other to both sides due to the force of the contact, and at the same time, the spring 32 will be compressed. At this time, the cleaning rod 34 can clean the carbon deposits that are attached to the metal scraper 24 after cleaning, which can prevent the carbon deposits that are prevented from being attached when the metal scraper 24 is cleaning from the bottom from being attached to the inner layer 16 of the double-layer glass during scraping.

[0040] When cleaning is complete and the metal scraper 24 is reset, it will disengage from the contact cleaning rod 34, and the contact cleaning rod 34 and the collar 33 will be reset by the elastic force of the spring 32.

[0041] like Figures 1 to 11 As shown, two abutment blocks 29 are fixedly connected to the bottom sides of one side of the slider 20, and the abutment blocks 29 slide within the groove 25.

[0042] Multiple abutment blocks 28 are slidably connected to the inner cavity of the slide groove 25 on one side, and the abutment blocks 28 abut against the abutment blocks 29. Two connecting rods 26 are slidably connected to the top of the multiple abutment blocks 28. A spring 27 is sleeved on the outer wall of the connecting rod 26, and one side of the spring 27 is fixedly connected to the top of the abutment blocks 28.

[0043] The side of spring 27 away from the contact block 28 is fixedly connected to the top of the inner cavity of the slide groove 25.

[0044] The above solution is adopted: when the slider 20 moves, it will drive the second abutment block 29 to move. At this time, the second abutment block 29 will abut against the first abutment block 28, causing the first abutment block 28 to slide upward. At the same time, the second spring 27 is compressed. When the second abutment block 29 passes the first abutment block 28, the first abutment block 28 will be reset by the elastic force of the second spring 27. This structural design can prevent carbon deposits from falling into the output groove 19 and affecting the sliding of the slider 20 in the output groove 19.

[0045] like Figures 1 to 11 As shown, a heating air exhaust port 35 is installed through and installed on one side of the top of the four sets of double-layer glass outer layers 13. A square tube 36 is installed at the end of the four heating air exhaust ports 35 away from the double-layer glass outer layers 13. A connection port 37 is installed on the top of the side of the square tube 36 away from the heating air exhaust port 35.

[0046] An exhaust section 38 is installed at one end of the combustion chamber 1, and a flange 39 is fixedly connected to the side of the exhaust section 38 away from the combustion chamber 1.

[0047] An intake section 40 is installed at the end of the combustion chamber 1 away from the exhaust section 38. A fuel pipe connection end 41 is installed through the outer wall of the intake section 40. A flange 2 42 is fixedly connected to the side of the intake section 40 away from the combustion chamber 1.

[0048] A pressure regulating valve 43 is provided on the outer wall of combustion chamber 1 on the side away from motor 7.

[0049] The above solution is adopted: a vacuum insulation layer 15 is formed inside the double-glazed glass, which effectively blocks the heat conduction between the air heating chamber 14 and the outer layer 13 of the double-glazed glass, reducing heat loss. Due to the presence of the vacuum insulation layer 15, the heat exchange between the double-glazed glass and the air is mainly concentrated in the inner layer 16 of the double-glazed glass, reducing the temperature rise of the outer layer 13 of the double-glazed glass. The fuel pipe connection end 41 then injects fuel into the combustion chamber 1.

[0050] Because the temperature of the outer layer 13 of the double-layered glass is relatively low, fuel droplets are not easy to adhere to it, thus maintaining the transparency of the double-layered glass and making it easier to observe the visualization of the combustion process.

[0051] The pressure regulating valve 43 is used to regulate the pressure in the combustion chamber 1 to ensure the stability and safety of the combustion process.

[0052] Working principle and usage process of this invention:

[0053] When carbon deposits from combustion adhere to the inner layer 16 of the double-glazed glass, the motor 7 is turned on, causing gear 9 to rotate. At the same time, gear 9 meshes with the annular rack 4, driving the annular slide plate 3, annular slide plate 5, and annular rack 6 to rotate simultaneously. This causes the annular rack 6 to mesh with gear 11, driving the threaded rod 10 to rotate. As the threaded rod 10 rotates, it drives the slider 20 to slide within the output slot 19. At this time, the slider 20 will drive the moving plate 21 and the metal scraper 24 to move. The metal scraper 24, through the elastic force of spring 23, will contact the surface of the inner layer 16 of the double-glazed glass. During the movement, the metal scraper 24 scrapes and cleans the carbon deposits that are adhering to the inner layer 16 of the double-glazed glass, preventing the carbon deposits from affecting the clarity of optical measurements.

[0054] After the metal scraper 24 has cleaned the inner layer 16 of the double-glazed glass to prevent the carbon deposits from adhering, it continues to move forward until the metal scraper 24 comes into contact with the cleaning rod 34. At this time, the cleaning rod 34 will cause the collar 33 to move the cleaning rod 34 away from each other through the force of the contact, and at the same time, the spring 32 will be compressed. The cleaning rod 34 can clean the carbon deposits adhering to the metal scraper 24 after cleaning, which can prevent the carbon deposits that are prevented from adhering to the inner layer 16 of the double-glazed glass when the metal scraper 24 is cleaning from the bottom. When the cleaning is completed and the metal scraper 24 is reset, the metal scraper 24 will disengage from the contact of the cleaning rod 34, and the cleaning rod 34 and the collar 33 will be reset by the elastic force of the spring 32.

[0055] As slider 20 moves, it will drive abutment block 29 to move as well. At this time, abutment block 29 will abut against abutment block 28, causing abutment block 28 to slide upward. At the same time, spring 27 will be compressed. When abutment block 29 passes abutment block 28, abutment block 28 will be reset by the elastic force of spring 27. This structural design can prevent carbon deposits from falling into the output slot 19 and affecting the sliding of slider 20 in the output slot 19.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating, comprising a combustion chamber (1), characterized in that: The combustion chamber (1) has an inner groove annular plate (2) installed on one side of its top. An annular slide plate (3) is rotatably connected to one side of the inner cavity of the annular plate (2). An annular rack (4) is fixedly connected to one side of the annular slide plate (3). An annular slide plate (5) is fixedly connected to the side of the annular slide plate (3) away from the annular rack (4). An annular rack (6) is fixedly connected to one side of the inner wall of the annular slide plate (5). A connecting frame (8) is connected through and fixedly connected to one side of the outer wall of the inner groove annular plate (2). A motor (7) is installed on the side of the top away from the inner groove annular plate (2). The output end of the motor (7) passes through the connecting frame (8) and is fixedly connected to a gear (9). The gear (9) meshes with the annular rack (4). Four sets of threaded rods (10) are rotatably connected through the side of the inner groove annular plate (2) away from the connecting frame (8). A gear (11) is fixedly connected to one side of the outer wall of the threaded rod (10). The gear (11) meshes with the annular rack (6). Four sets of optical measurement mounting plates (12) are installed on the four sides of the outer wall of the combustion chamber (1). A double-layer glass outer layer (13) is installed through the middle of a set of optical measurement mounting plates (12). An air heating chamber (14) is provided at the bottom of the double-layer glass outer layer (13). A vacuum insulation layer (15) is provided on the side of the air heating chamber (14) away from the double-layer glass outer layer (13). A double-layer glass inner layer (16) is installed on the side of the vacuum insulation layer (15) away from the air heating chamber (14). A set of optical measurement mounting plates (12) has connecting grooves (17) on both sides of its bottom. The inner cavities of the two connecting grooves (17) are fixedly connected to connecting boxes (18), and the bottom of the connecting boxes (18) penetrates the combustion chamber (1). An output groove (19) is opened in the inner cavity of one side of the connecting box (18). A slider (20) is slidably connected to the inner cavity of the output groove (19). The outer wall of the threaded rod (10) away from the gear two (11) passes through the connecting box (18) and is rotatably connected. The threaded rod (10) and the slider are connected to the connecting box (18). The block (20) is threaded together. A groove (25) is provided on one side bottom between the two connecting boxes (18). A movable plate (21) is fixedly connected between the two sliders (20) through the groove (25). A spring groove (22) is provided in the inner cavity of the movable plate (21). A spring (23) is fixedly connected in the inner cavity of the spring groove (22). A metal scraper (24) is fixedly connected to the top of the spring (23). The metal scraper (24) passes through the movable plate (21) and is in contact with the inner layer (16) of the double-layer glass.

2. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: A U-shaped plate (30) is fixedly connected to one side of the outer wall of the combustion chamber (1) between the two connecting boxes (18). A V-shaped rod (31) is fixedly connected to the inner wall of the U-shaped plate (30). A spring three (32) is sleeved on the outer wall of the V-shaped rod (31). Two collars (33) are slidably connected to the middle of the outer wall of the V-shaped rod (31). One side of the collar (33) is fixedly connected to one side of the spring three (32). An anti-cleaning rod (34) is fixedly connected to one side of the outer wall of the two collars (33). The anti-cleaning rod (34) is in contact with the metal scraper (24).

3. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: The bottom sides of the slider (20) on one side are fixedly connected with the second abutment block (29), and the second abutment block (29) slides in the groove (25).

4. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: The inner cavity of the slide groove (25) on one side is slidably connected with a plurality of abutting blocks (28), and the abutting blocks (28) abut against the abutting blocks (29). The tops of the plurality of abutting blocks (28) are slidably connected with two connecting rods (26). The outer wall of the connecting rods (26) is fitted with springs (27), and one side of the springs (27) is fixedly connected to the top of the abutting blocks (28).

5. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 4, characterized in that: The side of the second spring (27) away from the first abutment block (28) is fixedly connected to the top of the inner cavity of the slide (25).

6. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: A heating air exhaust port (35) is installed through and installed on one side of the top of the four sets of double-layer glass outer layers (13). A square tube (36) is installed on the end of the four heating air exhaust ports (35) away from the double-layer glass outer layers (13). A connection port (37) is installed on the top of the side of the square tube (36) away from the heating air exhaust port (35).

7. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: An exhaust section (38) is installed at one end of the combustion chamber (1), and a flange (39) is fixedly connected to the side of the exhaust section (38) away from the combustion chamber (1).

8. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: An intake section (40) is installed at the end of the combustion chamber (1) away from the exhaust section (38). A fuel pipe connection end (41) is installed through the outer wall of the intake section (40). A flange (42) is fixedly connected to the side of the intake section (40) away from the combustion chamber (1).

9. The optical measurement device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: A pressure regulating valve (43) is provided on the side of the outer wall of the combustion chamber (1) away from the motor (7).

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