Gas turbine combustion chamber spray characteristic optical measurement device based on window heating

Abstract

The invention belongs to the technical field of gas turbine combustion chamber test devices, and discloses a gas turbine combustion chamber spray characteristic optical measurement device based on window heating, which comprises a combustion chamber, one side of the top of the combustion chamber is provided with an inner groove annular plate, and one side of the inner cavity of the inner groove annular plate is rotatably connected with an annular sliding plate I; and one side of the annular sliding plate I is fixedly connected with an annular rack I. According to the device, a motor is started to enable the annular rack II to be meshed with the gear II to drive a threaded rod to rotate, the threaded rod drives a sliding block to slide in an output groove when rotating, and at the moment, the sliding block can drive a moving plate and a metal scraper to move; at the moment, the metal scraping plate abuts against the surface of the inner layer of the double-layer glass through the elastic force of the first spring, carbon deposit attached to the inner layer of the double-layer glass is scraped and cleaned away through the metal scraping plate in the moving process, and it is avoided that the carbon deposit is attached to the surface of the inner layer of the double-layer glass to affect the clearness of optical measurement.

Description

Technical Field

[0001] The invention belongs to the technical field of gas turbine combustion chamber test devices, in particular to a gas turbine combustion chamber spray characteristic optical measurement device based on window heating. Background Art

[0002] The fuel atomization and oil-gas mixing process in the combustion chamber of a gas turbine is the initial stage of the combustion process. Its performance has a significant impact on the combustion efficiency, combustion stability and pollutant emissions of the combustion chamber. However, the current fuel atomization theory is still imperfect. For the atomization process under complex aerodynamic conditions in the combustion chamber of a gas turbine, it will be affected by complex aerodynamic conditions such as strong turbulence disturbances and multi-stage swirls. The processes of liquid film breakup, flow, evaporation, and mixing show highly unsteady characteristics and complex phase interface structures. The atomization problem has gradually become one of the important issues restricting the combustion technology of aeroengines. For the atomization process, experimental research has the characteristics of intuitiveness, reality and reliability. Through the optical visualization test technology, the spray characteristic test is carried out to obtain the details of the atomization process and the influence of typical controllable conditions on the fuel atomization mixing process. It is of great significance to the design of the gas turbine combustion chamber. However, it is very difficult to realize the fuel atomization mixing process in a confined space and obtain the technical difficulty of the atomization process image. It is necessary to adopt multiple ways to protect the optical instrument to avoid the influence of the fuel phase change, which will cause the formation of liquid film on the instrument surface and affect its optical performance.

[0003] However, since the fuel in the combustion chamber is not completely burned, the generated carbonaceous substances are deposited on the window surface. Under high temperature and incomplete combustion conditions, these carbonaceous substances form solid carbon particles through pyrolysis reaction or incomplete oxidation reaction. As the airflow and temperature change, these particles adhere to the window surface and gradually form a carbon deposit layer, thereby blocking the window, affecting the clarity of optical measurement, and may cause damage to the window surface or performance degradation. Summary of the invention

[0004] In order to solve the problem proposed in the above background technology that solid carbon particles are formed by pyrolysis reaction or incomplete oxidation reaction, and as the airflow and temperature change, these particles adhere to the window surface and gradually form a carbon deposition layer, thereby blocking the window, affecting the clarity of optical measurement, and possibly causing damage to the window surface or performance degradation, the present invention provides an optical measurement device for the spray characteristics of a gas turbine combustion chamber based on window heating.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an optical measuring 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 1 is 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 one 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 one side of the top of the combustion chamber away from the inner groove annular plate, an output end of the motor penetrates the connecting frame and is fixedly connected to one gear, and the gear 1 is meshed with the annular rack 1, four groups of threaded rods are penetrated and rotatably connected to one 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 is meshed with the annular rack 2, and four groups of optical measurement mounting plates are installed on four sides of the outer wall of the combustion chamber;

[0006] A double-layer glass outer layer is installed through the middle of a group of optical measurement mounting plates, an air heating cavity is arranged at the bottom of the double-layer glass outer layer, a side of the air heating cavity away from the double-layer glass outer layer passes through the combustion chamber and is provided with a vacuum insulation layer, and a double-layer glass inner layer is installed on the side of the vacuum insulation layer away from the air heating cavity.

[0007] Preferably, a group of optical measurement mounting plates are provided with connecting grooves on both sides of the bottom, the inner cavities of the two connecting grooves are fixedly connected to a connecting box, and the bottom of the connecting box passes through the combustion chamber, an output groove is provided in the inner cavity of the connecting box on one side, and a slider is slidably connected to the inner cavity of the output groove, the end of the outer wall of the threaded rod away from the gear 2 passes through the connecting box and is rotatably connected, and the threaded rod is threadedly connected to the slider, a sliding groove is provided at the bottom of one side between the two connecting boxes, and a moving plate is fixedly connected to the moving plate by passing through the sliding groove between the two sliders, a spring groove is provided in the inner cavity of the moving plate, and a spring 1 is fixedly connected to the inner cavity of the spring groove, a metal scraper is fixedly connected to the top of the spring 1, and the metal scraper passes through the moving plate and fits 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 three is sleeved on the outer wall of the V-shaped rod, two rings are slidably connected to the middle part of the outer wall of the V-shaped rod, and one side of the ring is fixedly connected to one side of the spring three, a resistance cleaning rod is fixedly connected to one side of the outer wall of the two rings, and the resistance cleaning rod is in resistance with the metal scraper.

[0009] Preferably, two abutment blocks 2 are fixedly connected to both sides of the bottom of the sliding block on one side, and the abutment blocks 2 slide in the sliding groove.

[0010] Preferably, the inner cavity of the slide groove on one side is slidably connected with multiple resistance blocks 1, and resistance block 1 is in conflict with resistance block 2, the tops of the multiple resistance blocks 1 are slidably connected to two connecting rods, the outer wall of the connecting rod is sleeved with spring 2, and one side of spring 2 is fixedly connected to the top of resistance block 1.

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

[0012] Preferably, a heating air exhaust interface is penetrated and installed on one side of the top of the outer layer of the four groups of double-layer glass, a square tube is installed on one end of the four heating air exhaust interfaces away from the outer layer of the double-layer glass, and a connecting port is installed on the top of one side of the square tube away from the heating air exhaust interface.

[0013] Preferably, an exhaust section is installed at one end of the combustion chamber, and a flange plate 1 is fixedly connected to the side of the exhaust section away from the combustion chamber.

[0014] Preferably, an air intake section is installed at one end of the combustion chamber away from the exhaust section, a fuel pipe connecting end passes through and is installed on the outer wall of the air intake section, and a flange plate 2 is fixedly connected to one side of the air intake section away from the combustion chamber.

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

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention prevents carbon deposits from adhering to the surface of the inner layer of the double-layer glass and affecting the clarity of optical measurement by arranging the coordination of structures such as a motor and a metal scraper. The motor is turned on to rotate gear one and gear one meshes with annular rack one to drive annular slide plate one, annular slide plate two and annular rack two to rotate simultaneously, so that annular rack two meshes with gear two to drive the threaded rod to rotate. When the threaded rod rotates, the slider is driven to slide in the output groove. At this time, the slider drives the moving plate and the metal scraper to move. At this time, the metal scraper is pressed against the surface of the inner layer of the double-layer glass by the elastic force of spring one. When moving, the carbon deposits attached to the surface of the inner layer of the double-layer glass are scraped and cleaned by the metal scraper.

[0018] The present invention can clean the carbon deposits attached to the metal scraper after cleaning by arranging the cooperation of structures such as the U-shaped plate and the resistance cleaning rod. After the metal scraper finishes cleaning the carbon deposits attached to the inner surface of the double-layer glass, it continues to move forward so that the metal scraper contacts the resistance cleaning rod. At this time, the resistance cleaning rod will drive the resistance cleaning rod to both sides away from each other through the resistance force, and at the same time compress the spring three. At this time, the resistance cleaning rod can clean the carbon deposits attached to the metal scraper after cleaning.

[0019] The present invention can prevent carbon deposits from falling into the output groove and affecting the sliding of the slider in the output groove by setting the cooperation of the structures such as the resistance block one and the resistance block two. When the slider moves, it will drive the resistance block two to move. At this time, the resistance block two will resist the resistance block one, causing the resistance block one to slide upward and compress the spring two at the same time. When the resistance block two passes over the resistance block one, the resistance block one will be reset by the elastic force of the spring two. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure 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 installation plate of the present invention;

[0024] Figure 5 It is a schematic diagram of the connection groove of the present invention;

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

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

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

[0028] Fig. 9 It is a schematic diagram of the slideway of the present invention;

[0029] Fig.10 For the present invention Fig. 9 Zoom in on the image at C;

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

[0031] In the figure: 1, combustion chamber; 2, inner groove annular plate; 3, annular slide plate 1; 4, annular rack 1; 5, annular slide plate 2; 6, annular rack 2; 7, motor; 8, connecting frame; 9, gear 1; 10, threaded rod; 11, gear 2; 12, optical measurement mounting plate; 13, double-layer glass outer layer; 14, air heating chamber; 15, vacuum insulation layer; 16, double-layer glass inner layer; 17, connecting groove; 18, connecting box; 19, output groove; 20, slider; 21, moving plate; 22, Spring slot; 23. Spring 1; 24. Metal scraper; 25. Slide; 26. Connecting rod; 27. Spring 2; 28. Resistance block 1; 29. ​​Resistance block 2; 30. U-shaped plate; 31. V-shaped rod; 32. Spring 3; 33. Ring; 34. Resistance cleaning rod; 35. Heating air exhaust interface; 36. Square tube; 37. Connecting port; 38. Exhaust section; 39. Flange 1; 40. Intake section; 41. Fuel pipe connecting end; 42. Flange 2; 43. Pressure regulating valve. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 11 As shown, the present invention provides an optical measuring device for spray characteristics of a gas turbine combustion chamber based on window heating, comprising a combustion chamber 1, a combustion chamber 1, a top side of the combustion chamber 1 is provided with an inner groove annular plate 2, an inner cavity side of the inner groove annular plate 2 is rotatably connected with an annular slide plate 3, one side of the annular slide plate 3 is fixedly connected with an annular rack 4, a side of the annular slide plate 3 away from the annular rack 4 is fixedly connected with an annular slide plate 2 5, an inner wall side of the annular slide plate 2 5 is fixedly connected with an annular rack 2 6, and an outer wall side of the inner groove annular plate 2 is penetrated by a A connecting frame 8 is passed through and fixedly connected, 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, and the gear 9 is meshed and connected with an annular rack 4, and four groups of threaded rods 10 are passed through and rotatably connected on the side of the inner groove annular plate 2 away from the connecting frame 8, and a gear 2 11 is fixedly connected to one side of the outer wall of the threaded rod 10, and the gear 2 11 is meshed and connected with an annular rack 2 6, and four groups of optical measurement mounting plates 12 are installed on the four sides of the outer wall of the combustion chamber 1;

[0034] A double-layer glass outer layer 13 is installed through the middle of a group of optical measurement installation plates 12, an air heating cavity 14 is arranged at the bottom of the double-layer glass outer layer 13, a side of the air heating cavity 14 away from the double-layer glass outer layer 13 passes through the combustion chamber 1 and is provided with a vacuum insulation layer 15, and a double-layer glass inner layer 16 is installed on the side of the vacuum insulation layer 15 away from the air heating cavity 14;

[0035] A group of optical measurement mounting plates 12 are provided with connecting grooves 17 on both sides of the bottom, and the inner cavities of the two connecting grooves 17 are fixedly connected with connecting boxes 18, and the bottom of the connecting box 18 passes through the combustion chamber 1, and the inner cavity of the connecting box 18 on one side is provided with an output groove 19, and the inner cavity of the output groove 19 is slidably connected with a slider 20, and the end of the outer wall of the threaded rod 10 away from the gear 2 11 passes through the connecting box 18 and is rotatably connected, and the threaded rod 10 is threadedly connected to the slider 20, and a slide groove 25 is provided on the bottom of one side between the two connecting boxes 18, and a moving plate 21 is fixedly connected to the moving plate 21 by passing through the slide groove 25 between the two sliders 20, and a spring groove 22 is provided in the inner cavity of the moving plate 21, and a spring 23 is fixedly connected to the inner cavity of the spring groove 22, and a metal scraper 24 is fixedly connected to the top of the spring 23, and the metal scraper 24 passes through the moving plate 21 and fits with the inner layer 16 of the double-layer glass.

[0036] The above scheme is adopted: when the carbon deposits after combustion are attached to the inner layer 16 of the double-layer glass, the motor 7 is turned on to rotate the gear 19, and the gear 19 is meshed with the annular rack 14 to drive the annular slide plate 13, the annular slide plate 25 and the annular rack 26 to rotate at the same time, so that the annular rack 26 is meshed with the gear 211 to drive the threaded rod 10 to rotate, and when the threaded rod 10 rotates, the slider 20 is driven to slide in the output groove 19, and at this time, the slider 20 drives the moving plate 21 and the metal scraper 24 to move;

[0037] At this time, the metal scraper 24 is pressed against 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 the 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 three 32 is sleeved on the outer wall of the V-shaped rod 31, two rings 33 are slidably connected to the middle part of the outer wall of the V-shaped rod 31, and one side of the ring 33 is fixedly connected to one side of the spring three 32, and a resistance cleaning rod 34 is fixedly connected to one side of the outer wall of the two rings 33, and the resistance cleaning rod 34 is in resistance to the metal scraper 24.

[0039] The above scheme is adopted: after the metal scraper 24 finishes cleaning the inner layer 16 of the double-layer glass to avoid the attached carbon deposits, it continues to move forward so that the metal scraper 24 contacts the contact cleaning rod 34. At this time, the contact cleaning rod 34 will drive the contact cleaning rod 34 to both sides away from each other through the force of the contact, and at the same time make the spring three 32 affect the compression. At this time, the contact cleaning rod 34 can clean the carbon deposits attached to the metal scraper 24 after cleaning, and can prevent the metal scraper 24 from preventing the attached carbon deposits from being attached to the inner layer 16 of the double-layer glass when cleaning the lower side;

[0040] When the cleaning is completed and the metal scraper 24 is reset, it will be out of contact with the cleaning rod 34, and the cleaning rod 34 and the collar 33 will be reset by the elastic force of the spring 3 32.

[0041] like Figures 1 to 11 As shown, the two sides of the bottom of one side slider 20 are fixedly connected with the second abutment block 29, and the second abutment block 29 slides in the slide groove 25;

[0042] The inner cavity of the slide groove 25 on one side is slidably connected with a plurality of abutment blocks 1 28, and the abutment blocks 1 28 abut against abutment blocks 2 29, and the tops of the plurality of abutment blocks 1 28 are slidably connected with two connecting rods 26, and the outer wall of the connecting rod 26 is sleeved with a spring 27, and one side of the spring 27 is fixedly connected to the top of the abutment block 1 28;

[0043] The side of the spring 2 27 away from the abutment block 1 28 is fixedly connected to the top of the inner cavity of the slide slot 25 .

[0044] The above scheme is adopted: when the slider 20 moves, the resistance block 29 will be driven to move. At this time, the resistance block 29 will resist the resistance block 1 28, causing the resistance block 1 28 to slide upward and compress the spring 27 at the same time. When the resistance block 29 passes over the resistance block 1 28, the resistance block 1 28 will be reset by the elastic force of the 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 interface 35 is penetrated and installed on one side of the top of the four groups of double-layer glass outer layers 13, and a square tube 36 is installed on one end of the four heating air exhaust interfaces 35 away from the double-layer glass outer layer 13, and a connecting port 37 is installed on the top of one side of the square tube 36 away from the heating air exhaust interface 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 air intake section 40 is installed at one end of the combustion chamber 1 away from the exhaust section 38, a fuel pipe connection end 41 is penetrated and installed on the outer wall of the air intake section 40, and a flange plate 2 42 is fixedly connected to one side of the air intake section 40 away from the combustion chamber 1;

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

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

[0050] Since the temperature of the outer layer 13 of the double-layer glass is relatively low, the fuel droplets are not easy to adhere thereto, thereby maintaining the transparency of the double-layer glass, which is conducive to the visualization effect of observing the combustion process;

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

[0052] The working principle and use process of the present invention:

[0053] When the carbon deposits after combustion are attached to the inner layer 16 of the double-layer glass, the motor 7 is turned on to rotate the gear 19. At the same time, the gear 19 is meshed with the annular rack 14 to drive the annular slide plate 13, the annular slide plate 25 and the annular rack 26 to rotate at the same time, so that the annular rack 26 is meshed with the gear 211 to drive the threaded rod 10 to rotate. When the threaded rod 10 rotates, the slider 20 is driven 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. At this time, the metal scraper 24 is caused to contact the surface of the inner layer 16 of the double-layer glass by the elastic force of the spring 123. When moving, the metal scraper 24 is used to scrape and clean the carbon deposits attached to the inner layer 16 of the double-layer glass, so as to prevent the carbon deposits from adhering to the surface of the inner layer 16 of the double-layer glass and affecting the clarity of the optical measurement.

[0054] After the metal scraper 24 has finished cleaning the inner layer 16 of the double-layer glass to avoid the attached carbon deposits, it continues to move forward so that the metal scraper 24 contacts the contact cleaning rod 34. At this time, the contact cleaning rod 34 will use the force of the contact to drive the sleeve ring 33 to drive the contact cleaning rod 34 to move away from each other on both sides, and at the same time, the spring three 32 is compressed. At this time, the contact cleaning rod 34 can clean the carbon deposits attached to the metal scraper 24 after cleaning, and can prevent the metal scraper 24 from attaching to the inner layer 16 of the double-layer glass when cleaning the lower side. When the cleaning is completed and reset, the metal scraper 24 will be separated from the contact of the contact cleaning rod 34, and the contact cleaning rod 34 and the sleeve ring 33 are reset by the elastic force of the spring three 32.

[0055] When the slider 20 moves, the resistance block 29 will be driven to move. At this time, the resistance block 29 will resist the resistance block 1 28, causing the resistance block 1 28 to slide upward and compress the spring 27. When the resistance block 29 passes over the resistance block 1 28, the resistance block 1 28 will be reset by the elastic force of the 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.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. An optical measuring 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) is provided with an inner groove annular plate (2) installed on one side of the top of the combustion chamber (1); an annular slide plate (3) is rotatably connected to an inner cavity side 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 a side of the annular slide plate (3) away from the annular rack (4); an annular rack (6) is fixedly connected to an inner wall side of the annular slide plate (5); a connecting frame (8) is penetrated 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 one (9), and the gear one (9) is meshingly connected to an annular rack one (4); four groups of threaded rods (10) are passed through and rotatably connected to the side of the inner groove annular plate (2) away from the connecting frame (8); a gear two (11) is fixedly connected to one side of the outer wall of the threaded rod (10), and the gear two (11) is meshingly connected to annular rack two (6); and four groups of optical measurement mounting plates (12) are installed on four sides of the outer wall of the combustion chamber (1); A double-layer glass outer layer (13) is penetrated and installed in the middle of a group of optical measurement installation plates (12); an air heating cavity (14) is arranged at the bottom of the double-layer glass outer layer (13); a side of the air heating cavity (14) away from the double-layer glass outer layer (13) penetrates the combustion chamber (1) and is provided with a vacuum insulation layer (15); a side of the vacuum insulation layer (15) away from the air heating cavity (14) is installed with a double-layer glass inner layer (16).

2. The optical measuring device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1 is characterized in that: A group of optical measurement mounting plates (12) are provided with connecting grooves (17) on both sides of the bottom, the inner cavities of the two connecting grooves (17) are fixedly connected to connecting boxes (18), and the bottom of the connecting box (18) passes through the combustion chamber (1), and the inner cavity of the connecting box (18) on one side is provided with an output groove (19), and the inner cavity of the output groove (19) is slidably connected to a sliding block (20), and the outer wall of the threaded rod (10) is away from the gear second (11) The end passes through the connecting box (18) and is rotatably connected, and the threaded rod (10) and the sliding block are connected. The two connecting boxes (18) are threadedly connected, a slide groove (25) is provided at the bottom of one side between the two connecting boxes (18), a movable plate (21) passes through the slide groove (25) and is fixedly connected between the two sliding blocks (20), a spring groove (22) is provided in the inner cavity of the movable plate (21), a spring 1 (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 1 (23), and the metal scraper (24) passes through the movable plate (21) and fits with the inner layer (16) of the double-layer glass.

3. The optical measuring device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 2 is 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 connection 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 sleeve rings (33) are slidably connected to the middle of the outer wall of the V-shaped rod (31), and one side of the sleeve ring (33) is fixedly connected to one side of the spring three (32), and a conflict cleaning rod (34) is fixedly connected to one side of the outer wall of the two sleeve rings (33), and the conflict cleaning rod (34) conflicts with the metal scraper (24).

4. The optical measuring device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 2, characterized in that: The two sides of the bottom of the slider (20) on one side are fixedly connected with a second resistance block (29), and the second resistance block (29) slides in the slide groove (25).

5. The optical measuring device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 2, characterized in that: The inner cavity of the slide groove (25) on one side is slidably connected with a plurality of abutment blocks (28), and the abutment blocks (28) are in contact with abutment blocks (29). The tops of the plurality of abutment blocks (28) are slidably connected with two connecting rods (26). The outer wall of the connecting rod (26) is provided with a spring (27), and one side of the spring (27) is fixedly connected to the top of the abutment block (28).

6. The optical measuring device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 5, 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 groove (25).

7. The optical measuring 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 interface (35) is penetrated and installed on one side of the top of the four groups of double-layer glass outer layers (13); a square tube (36) is installed on one end of the four heating air exhaust interfaces (35) away from the double-layer glass outer layers (13); and a connection port (37) is installed on the top of one side of the square tube (36) away from the heating air exhaust interface (35).

8. The optical measuring 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 plate (39) is fixedly connected to the side of the exhaust section (38) away from the combustion chamber (1).

9. The optical measuring device for spray characteristics of a gas turbine combustion chamber based on window heating according to claim 1, characterized in that: An air intake section (40) is installed at one end of the combustion chamber (1) away from the exhaust section (38); a fuel pipe connecting end (41) penetrates and is installed on the outer wall of the air intake section (40); and a flange plate 2 (42) is fixedly connected to the side of the air intake section (40) away from the combustion chamber (1).

10. The optical measuring 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 a side of the outer wall of the combustion chamber (1) away from the motor (7).

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