Aerodynamic gas-steam generator

Abstract

An aviation power gas-steam generator relates to the technical field of composite heat carrier generators and comprises an end flange, a front flange, a main shell, a middle flange, a rear flange and an auxiliary shell, a water pipe is arranged in the main shell, the front end of the water pipe is connected with an annular plate in a welded mode, the rear end of the water pipe is connected with a spray head in a welded mode, and an explosive cooling temperature adjusting ring and a jet flow cylinder are arranged in the middle flange. The conical cylinder part of the spray head extends into the quick-cooling temperature-adjusting ring, a nozzle of the spray head is aligned with a central channel of the jet flow cylinder, a gas-liquid quick-cooling heat exchange space is formed in a surrounding area of the outer side of the conical cylinder part of the spray head, the inner side of the quick-cooling temperature-adjusting ring and the front end of the jet flow cylinder, water spraying holes are formed in the outer wall of the quick-cooling temperature-adjusting ring, and air spraying holes are formed in the conical cylinder part of the spray head. The high-temperature mixed gas and the cooling water are impacted, subjected to heat exchange and evaporated in the gas-liquid quick cooling heat exchange space, and mixed gas of water vapor and the high-temperature gas is formed; the water spraying holes are formed in the quick-cooling temperature adjusting ring, high-temperature heat cannot be directly transmitted to the quick-cooling temperature adjusting ring, and the problem of scaling of the water spraying holes is solved.

Description

Technical Field

[0001] This invention belongs to the technical field of composite heat carrier generators, and particularly relates to an aerospace power gas generator. Background Technology

[0002] Patent application number 201120285972.1 discloses a high-temperature and high-pressure combustion system for a supercritical composite heat carrier generator. This technology provides a novel production enhancement measure for gas injection and oil recovery in oil fields. However, problems still exist in practical applications: 1. In this device, softened water is injected into the rear end of the combustion chamber through a water-shield annular channel from a small nozzle at the rear end to cool the high-temperature mixed gas. When the outlet mixed gas temperature is planned to be increased, the amount of softened water needs to be reduced. At this time, the wall temperature rises, which leads to scaling and blockage of the inner annular water system channel and the water nozzles in the gasification mixing chamber. 2. The water-shield and gas-shield in this patented device are sealed with "O"-ring seals to the head shell. Under high-temperature and high-pressure conditions, leakage often occurs, making the device difficult to ignite, unstable in operation, and prone to unexpected shutdowns, affecting the continuous implementation of the injection and recovery plan. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing devices and provide a gas-vapor generator that generates high-temperature and high-pressure mixed gas using the working principle of aviation fuel engines. The high-temperature mixed gas is injected from inside the nozzle to the outside and exchanges heat with the cooling water mist, thereby reducing the temperature of the mixed gas. There is a gas-liquid explosion cooling heat exchange space between the outside of the nozzle and the water spraying device, which prevents scaling and is highly efficient and energy-saving.

[0004] The technical solution provided by this invention is: an aero-powered steam generator, comprising an end flange, a front flange, a main housing, an intermediate flange, a rear flange, and an auxiliary housing. The end flange and the front flange are detachably and sealed together. The front flange, the main housing, and the intermediate flange are sequentially welded together. The rear flange is welded to the auxiliary housing. The intermediate flange and the rear flange are detachably and sealed together. The end flange is provided with a fuel passage and an ignition passage. A water pipe is provided inside the main housing. The outer wall of the water pipe has a spiral water passage, and both ends of the outer wall of the water pipe have annular grooves. The spiral water passage is connected to the annular groove. The front flange has a radially machined water inlet channel, which is also connected to the annular groove. The front end of the water pipe is welded to the end flange, and the rear end of the water pipe is welded to a nozzle. The rear end of the nozzle has a conical structure. A cooling temperature control ring and a jet tube are installed inside the middle flange. The cooling temperature control ring is located outside the conical structure of the nozzle, and the jet tube is located at the rear end of the conical structure. The rear end of the conical structure of the nozzle has a nozzle opening, and the jet tube has a central channel. The nozzle opening of the nozzle is aligned with the jet tube. The central channel, the outer side of the nozzle's conical section, the inner side of the explosive cooling temperature control ring, and the front end of the jet tube enclose the gas-liquid explosive cooling heat exchange space. The front section of the outer wall of the explosive cooling temperature control ring has a straight channel parallel to the centerline, and the middle section of the outer wall of the explosive cooling temperature control ring has an annular groove two. The straight channel connects the annular groove two to the annular groove one on the outer wall of the water pipe. Spray holes are opened on the annular groove two, and jet holes are opened on the conical structure of the nozzle. High-temperature mixed gas is sprayed from inside the nozzle outwards through the jet holes, and cooling water is sprayed outwards through the jet holes. The jet is injected from outside the cooling and temperature regulating ring inwards. The high-temperature mixed gas and cooling water collide, exchange heat, and evaporate in the gas-liquid cooling heat exchange space to form a mixture of water vapor and high-temperature gas. The rear end of the jet tube is connected to a mixer, which is located inside the sub-shell and has an annular space between it and the sub-shell. The rear end face of the mixer has an end cap, and the side wall of the mixer has a spray hole. The rear end of the sub-shell is connected to a reducer outlet. A locking ring is threaded on the intermediate flange. The front end face of the locking ring abuts against the jet tube to limit the jet tube. The fuel passage is internally threaded with an oil-gas mixing nozzle.

[0005] As an alternative to the welding connection between the front end of the water pipe and the end flange, the front end of the water pipe is welded with an annular plate. The inner side of the front flange has an enlarged section. The annular plate is located inside the enlarged section of the front flange. A limit nut is threaded on the enlarged section. A tightening bolt is threaded on the limit nut. The tightening bolt presses against the annular plate, forcing the annular plate to squeeze and seal against the front flange.

[0006] As an alternative to the sequential connection of the main shell, intermediate flange, rear flange, sub-shell, and reducer outlet, the main shell is directly connected to the reducer outlet. A central tube is inserted inside the main shell, and the water pipe and the cooling temperature regulating ring are both located inside the central tube. The locking ring is threadedly connected to the rear end of the central tube. A sealing short section is provided at the front end of the central tube, which is welded to the end flange. The central tube and the sealing short section are threadedly sealed together. An annular space II is left between the sealing short section and the water pipe. The water inlet channel is opened on the end flange and communicates with the annular space II.

[0007] A further technical solution is that the central channel of the jet tube includes three sections: a conical inlet channel in the front section, a circular extrusion channel in the middle section, and a conical diffusion channel in the rear section.

[0008] A further technical solution is that the ejection direction of the nozzle on the side wall of the mixer has an angle with the radial direction of the mixer, and the airflow after passing through the nozzle forms a swirling airflow.

[0009] A further technical solution is to install a temperature measuring instrument on the outer side wall of the main casing.

[0010] A further technical solution is: the oil-gas mixing nozzle includes an air inlet pipe and an oil inlet pipe, the air inlet pipe is located outside the oil inlet pipe, the rear end of the oil inlet pipe is connected to the fuel injector, the rear end of the fuel injector is provided with a nozzle cap, the side wall of the nozzle cap is machined with swirling holes, and the rear end face of the nozzle cap is machined with impact holes.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The area enclosed by the outer side of the cone portion of the nozzle, the inner side of the explosion cooling temperature control ring, and the front end of the jet tube in this application constitutes a gas-liquid explosion cooling heat exchange space. The high-temperature mixed gas and the cooling water collide, exchange heat, and evaporate in the gas-liquid explosion cooling heat exchange space to form a mixture of water vapor and high-temperature gas. Since the water spray holes are not machined on the water pipe wall, but on the explosion cooling temperature control ring, even if the outlet mixed gas temperature is planned to be increased and the water demand reduced, the water pipe wall temperature will rise, but the high temperature will not directly act on the explosion cooling temperature control ring. Therefore, the water spray holes on the explosion cooling temperature control ring will not be blocked by high-temperature scaling.

[0012] 2. The mixture of water vapor and high-temperature gas formed after impact, heat exchange, and evaporation within the gas-liquid explosion cooling heat exchange space is carried into the jet tube by a high-temperature gas stream ejected from the nozzle in the middle of the nozzle. The mixture is then compressed and mixed in the compression channel in the middle section of the jet tube, before rapidly entering the diffusion channel at high speed. The mixture is then rapidly decelerated, and subsequent high-speed gas streams further impact and mix the decelerated mixture. It then enters the mixer, impacts the end cap, rebounds, and mixes again. Finally, it is ejected in a swirling motion through the ejection holes on the outer wall of the mixer, enters the interior of the secondary shell, and is accelerated and ejected through the large and small head outlets at the rear end of the secondary shell. In this application, the high-temperature mixed gas undergoes multiple impact mixing processes, resulting in highly uniform temperature and vaporization of the final ejected gas.

[0013] 3. In existing technologies, the water pipe and the main casing are sealed with O-rings. Leakage frequently occurs under high temperature and pressure conditions, making the device difficult to ignite, causing unstable operation, and unexpected shutdowns. In Embodiments 1 and 3, the water pipe ends are welded to the end flange. Several experiments have proven that this welded connection offers the highest reliability and eliminates leakage. Embodiment 2 involves welding an annular plate to the front end of the water pipe. The annular plate and the front flange are pressed together for a seal. While this airtight seal is not as effective as direct welding, it is still far superior to the sealing effect of an O-ring.

[0014] 4. In Embodiment 3, the present invention eliminates the intermediate flange, rear flange and sub-shell. The central pipe and water pipe are connected to the end flange respectively. After disassembling the end flange and the front flange, the central pipe, water pipe, nozzle, cooling temperature control ring, jet tube and mixer can be pulled out, which greatly simplifies the equipment structure and greatly facilitates disassembly, maintenance and repair. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the entire embodiment 1.

[0016] Figure 2 This is a cross-sectional view of the welded connection between the water pipe and the end flange in Example 1.

[0017] Figure 3 This is a partial view of the gas-liquid explosion cooling heat exchange space in Embodiment 1 and Embodiment 2.

[0018] Figure 4 This is a schematic diagram of the structure of the oil-gas mixing nozzle in Embodiment 1, Embodiment 2, and Embodiment 3.

[0019] Figure 5 These are schematic diagrams of the nozzle caps in Embodiment 1, Embodiment 2, and Embodiment 3.

[0020] Figure 6 yes Figure 5 Cross-sectional view at point AA.

[0021] Figure 7 This is a cross-sectional view of the entire embodiment two.

[0022] Figure 8 This is a cross-sectional view of the sealing structure at the front end of the water pipe in Example 2.

[0023] Figure 9 This is a cross-sectional view of the entire embodiment three.

[0024] Figure 10 This is a cross-sectional view of the connection relationship between the water pipe and the front end of the central pipe and the end flange in Example 3.

[0025] Figure 11 This is a cross-sectional view of the gas-liquid explosion cooling heat exchange space in Example 3.

[0026] In the diagram: 1. End flange; 2. Front flange; 3. Main housing; 4. Water pipe; 5. Spiral water passage; 6. Nozzle; 7. Intermediate flange; 8. Cooling temperature control ring; 9. Rear flange; 10. Jet tube; 11. Secondary housing; 12. Mixer; 13. Spray hole; 14. End cap; 15. Reducer outlet; 16. Locking ring; 17. Thermometer; 18. Water inlet channel; 19. Water inlet connector; 20. Oil-gas mixing nozzle; 21. Ignition rod; 22. Annular groove 1; 23. Straight passage; 24. Annular groove II; 25. Water spray hole; 26. Gas-liquid explosion heat exchange space; 27. Inlet passage; 28. Extrusion passage; 29. ​​Diffusion passage; 30. Nozzle; 31. Air jet hole; 32. Air inlet pipe; 33. Oil inlet pipe; 34. Tightening bolt; 35. Limiting nut; 36. Annular plate; 37. Sealing short section; 38. Central tube; 39. Annular space II; 40. Annular space I; 41. Swirl hole; 42. Impact hole. Detailed Implementation

[0027] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] In the description of this invention, it should be noted that the terms "central", "front end", "rear end", "front part", "rear part", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0029] Example 1: This example includes an end flange 1, a front flange 2, a main housing 3, an intermediate flange 7, a rear flange 9, and a secondary housing 11. The end flange 1 and the front flange 2 are detachably and sealed together. The front flange 2, the main housing 3, and the intermediate flange 7 are sequentially welded together. The rear flange 9 is welded to the secondary housing 11. The intermediate flange 7 and the rear flange 9 are detachably and sealed together. The end flange 1 is provided with a fuel channel and an ignition channel. An oil-gas mixing nozzle 20 is connected to the fuel channel, and an ignition rod 21 is installed in the ignition channel. A water pipe 4 is provided inside the main housing 3. The outer wall of the water pipe 4 has a spiral water passage 5. Both ends of the outer wall of the water pipe 4 have annular grooves 22. The spiral water passage 5 communicates with the annular grooves 22. The front flange 2 has a water inlet channel 18 machined radially. The water inlet channel 18 communicates with the annular grooves 22, and a water inlet connector 19 is connected to the end of the water inlet channel 18. The above are existing technologies and will not be described in detail here.

[0030] The innovation of Example 1 is that the front end of the water pipe 4 is welded to the end flange 1. After multiple tests, it has been proven that the welded connection has the highest sealing performance and can completely prevent water leakage at the front end of the water pipe 4 from affecting the combustion of fuel in the premix chamber. The rear end of the water pipe 4 is welded to the nozzle 6 to ensure that water on the outside of the water pipe 4 will not enter the inside of the nozzle 6 from the connection between the water pipe 4 and the nozzle 6. The rear end of the nozzle 6 has a conical structure. A cooling temperature-regulating ring 8 and a jet tube 10 are installed inside the middle flange 7. The cooling temperature-regulating ring 8 is located outside the conical structure of the nozzle 6, and the jet tube 10 is located at the rear end of the conical structure of the nozzle 6. The rear end of the conical structure of the nozzle 6 has a nozzle 30, and the jet tube 10 has a central channel. The nozzle 30 of the nozzle 6 is aligned with the central channel of the jet tube 10 to ensure smooth ejection of gas and vapor. The enclosed area of ​​the outer side of the conical part of the nozzle 6, the inner side of the cooling temperature-regulating ring 8, and the front end of the jet tube 10 constitutes a gas-liquid cooling heat exchange space 26. The front section of the outer wall of the cooling temperature-regulating ring 8 has a straight channel 23 parallel to the centerline, and the middle section of the outer wall of the cooling temperature-regulating ring 8 has an annular groove 24. The straight channel 23 connects the second annular groove 24 with the first annular groove 22 on the outer wall of the water pipe 4. Therefore, water from the outer wall of the water pipe 4 enters the second annular groove 24 through the straight channel 23. The second annular groove 24 has both spray holes 25 perpendicular to the center line and spray holes 25 inclined towards the front end relative to the center line. The nozzle 6 has a jet hole 31 on its conical structure. The high-temperature mixed gas is sprayed outward from the nozzle 6 through the jet hole 31, and the cooling water is sprayed inward from the outside of the explosion cooling temperature regulating ring 8 through the spray hole 25. The high-temperature mixed gas and the cooling water collide, exchange heat, and evaporate in the gas-liquid explosion cooling heat exchange space 26 to form a mixture of water vapor and high-temperature gas. If the temperature of the mixed gas is to be increased, the injection of cooling water is reduced. Since the spray nozzles 25 are not machined on the wall of the water pipe 4, but on the cooling and temperature regulating ring 8, and the cooling and temperature regulating ring 8 does not contact the water pipe 4, and only contacts the nozzle 6 through end face sealing, the heat on the water pipe 4 will not be transferred to the cooling and temperature regulating ring 8 in large quantities. Therefore, even if the outlet mixed gas temperature is to be increased and cooling water is injected, the water pipe 4 wall temperature will rise, but the high temperature will not directly act on the cooling and temperature regulating ring 8. Therefore, the spray nozzles 25 on the cooling and temperature regulating ring 8 will not be blocked by scale due to high temperature.

[0031] The central channel of the jet tube 10 comprises three sections: a conical inlet channel 27 at the front, a circular extrusion channel 28 in the middle, and a conical diffusion channel 29 at the rear. A mixer 12 is connected to the rear end of the jet tube 10. The mixer 12 is located inside the sub-shell 11 and has an annular space 40 between it and the sub-shell 11. The rear end face of the mixer 12 has an end cap 14, and the side wall of the mixer 12 has an outlet 13. The outlet direction of the outlet 13 on the side wall of the mixer 12 forms an angle with the radial direction of the mixer 12. A reducer outlet 15 is connected to the rear end of the sub-shell 11. The mixture of water vapor and high-temperature gas, formed after impact, heat exchange, and evaporation within the gas-liquid explosion cooling heat exchange space 26, is ejected through the nozzle 30 in the middle of the nozzle 6. The high-temperature gas flow is carried into the jet tube 10, where it is squeezed and mixed in the compression channel 28 in the middle section of the jet tube 10. Then, it rushes into the diffusion channel 29 at high speed and decelerates rapidly. The subsequent high-speed gas flow impacts and further mixes the decelerated mixture, which then enters the mixer 12, impacts the end cap 14, rebounds, and mixes again. It is then ejected in a vortex direction through the ejection hole 13 on the outer wall of the mixer 12, enters the interior of the sub-shell 11, and finally is ejected at a higher speed through the large and small head outlet 15 at the rear end of the sub-shell 11. In this application, the high-temperature mixed gas undergoes multiple impact mixing processes, resulting in ideal temperature uniformity and vaporization uniformity of the final ejected gas.

[0032] A locking ring 16 is threaded onto the intermediate flange 7. The front end face of the locking ring 16 abuts against the jet tube 10 to limit the jet tube 10 and prevent it from shifting backward.

[0033] After ignition in this embodiment, the resulting high-temperature mixed gas is ejected backward, passing through the nozzle 30 in the middle of the nozzle 6 and the jet hole 31 on the cone. The water pump draws water through the inlet connector 19, the inlet channel 18, the annular groove 22 on the outer side of the front section of the water pipe 4, the spiral water passage 5 on the outer side of the water pipe 4, the annular groove 22 on the outer side of the rear section of the water pipe 4, the straight passage 23 on the outer side of the front section of the explosion cooling temperature regulating ring 8, and the annular groove 24 on the outer side of the middle section of the explosion cooling temperature regulating ring 8, finally ejecting it from the spray hole 25 of the annular groove 24. This water collides with, exchanges heat with, and evaporates the high-temperature gas ejected from the jet hole 31 on the cone of the nozzle 6, forming water vapor which mixes with the nitrogen and carbon dioxide in the high-temperature gas, and then passes through the nozzle 6. The high-temperature gas flow ejected from the middle nozzle 30 is squeezed and mixed in the middle section extrusion channel 28 of the jet tube 10, and then rushes into the diffusion channel 29 at high speed and decelerates rapidly. The high-speed gas flow then impacts and further mixes the decelerated mixed gas. Since there is an angle between the ejection direction of the nozzle 13 on the side wall of the mixer 12 and the radial direction of the mixer 12, the gas enters the mixer 12, impacts the end cap 14, bounces back and mixes again, and is then ejected in a vortex direction through the nozzle 13 on the outer wall of the mixer 12, enters the interior of the sub-shell 11, and is finally accelerated and ejected through the large and small head outlet 15 at the rear end of the sub-shell 11. The temperature of the high-temperature mixed gas ejected at high speed is controlled by the amount of water entering through the water inlet connector 19 by frequency conversion adjustment.

[0034] The oil-gas mixing nozzle includes an air inlet pipe 32 and an oil inlet pipe 33. The air inlet pipe 32 is located outside the oil inlet pipe 33. The rear end of the oil inlet pipe 33 is connected to the fuel injector. The rear end of the fuel injector is provided with a nozzle cap. The side wall of the nozzle cap is machined with a swirl hole 41, and the rear end face of the nozzle cap is machined with an impact hole 42. After the oil in the oil inlet pipe 33 is sprayed out of the fuel injector, it forms droplets. The airflow in the air inlet pipe 32 blows the oil droplets backward. If the nozzle cap is not provided, the flow rate of the oil droplet airflow is too fast, making it difficult to ignite. After the nozzle cap is provided, the oil droplets enter from the outside to the inside through the swirl hole 41 of the nozzle cap, and are evenly gathered inside the nozzle cap. Then they impact the rear end plate of the nozzle cap and are discharged from the impact hole 42. The impact process not only reduces the flow rate of the oil droplets, but also makes the droplets smaller, which is more conducive to ignition. Moreover, the more droplets are gathered inside the nozzle cap, the more concentrated the spray volume is, which is more conducive to successful ignition.

[0035] A temperature measuring instrument 17 is installed on the outer side wall of the main housing 3 to prevent the main housing 3 from overheating through temperature monitoring.

[0036] Example 2: This example differs from Example 1 in that the front end of the water pipe 4 is not directly welded to the end flange 1. Instead, an annular plate 36 is welded to the front end of the water pipe 4. An enlarged diameter portion is machined on the inner side of the front flange 2. The annular plate 36 is located inside the enlarged diameter portion of the front flange 2. A limiting nut 35 is threaded onto the enlarged diameter portion. A tightening bolt 34 is threaded onto the limiting nut 35. The tightening bolt 34 presses against the annular plate 36, forcing the annular plate 36 to be squeezed and sealed against the front flange 2.

[0037] Example 3: Unlike Example 1, this example omits the intermediate flange 7, rear flange 9, and secondary housing 11. Instead, the main housing 3 is directly connected to the reducer outlet 15, but a central tube 38 needs to be inserted inside the main housing 3. The water pipe 4 and the cooling temperature regulating ring 8 are both located inside the central tube 38, and the locking ring 16 is threaded to the rear end of the central tube 38. A sealing short section 37 is provided at the front end of the central tube 38, which is welded to the end flange 1. The central tube 38 and the sealing short section 37 are threaded and sealed together, leaving an annular space 39 between the sealing short section 37 and the water pipe 4. The water inlet channel 18 is opened on the end flange 1 and communicates with the annular space 39. This example reduces the number of disassembled parts and the number of seals used. By simply disassembling the end flange 1 and the front flange 2, the entire internal assembly can be removed, making it more convenient for later inspection and maintenance.

[0038] In summary, this invention has made creative improvements based on the problems encountered in actual use of the product, so that the spray hole 25 does not accumulate scale, the sealing part at the front end of the water pipe 4 can withstand higher temperatures and pressures, ensuring that the water pipe 4 does not leak, and the structural design is simpler and more reasonable, easy to disassemble, and convenient for maintenance.

Claims

1. An aero-powered steam generator, comprising an end flange (1), a front flange (2), a main housing (3), an intermediate flange (7), a rear flange (9), and a secondary housing (11), wherein the end flange (1) is detachably sealed to the front flange (2), the front flange (2), the main housing (3), and the intermediate flange (7) are sequentially welded to each other, the rear flange (9) is welded to the secondary housing (11), and the intermediate flange (7) is detachably sealed to the rear flange (9), wherein the end flange (1) is provided with a fuel passage and an ignition passage, a water pipe (4) is provided inside the main housing (3), the outer wall of the water pipe (4) has a spiral water passage (5), and both ends of the outer wall of the water pipe (4) have annular grooves (22), the spiral water passage (5) communicates with the annular grooves (22), and the front flange (2) is radially machined with a water inlet channel (18), the water inlet channel (18) communicates with the annular grooves (22), characterized in that: The front end of the water pipe (4) is welded to the end flange (1), and the rear end of the water pipe (4) is welded to the nozzle (6). The rear end of the nozzle (6) is a conical structure. A cooling temperature regulating ring (8) and a jet tube (10) are installed inside the intermediate flange (7). The cooling temperature regulating ring (8) is located outside the conical structure of the nozzle (6), and the jet tube (10) is located at the rear end of the conical structure of the nozzle (6). The rear end of the conical structure of the nozzle (6) has a nozzle (30), and the jet tube (10) has a central channel. The nozzle (30) of (6) is aligned with the central channel of the jet tube (10). The outer side of the cone part of the nozzle (6), the inner side of the explosion cooling temperature regulating ring (8), and the enclosed area of ​​the front end of the jet tube (10) constitute the gas-liquid explosion cooling heat exchange space (26). The front section of the outer wall of the explosion cooling temperature regulating ring (8) is provided with a straight channel (23) parallel to the center line. The middle section of the outer wall of the explosion cooling temperature regulating ring (8) is provided with an annular groove II (24). The straight channel (23) connects the annular groove II (24) with the annular groove II (24) of the outer wall of the water pipe (4). The first groove (22) is connected, and the second annular groove (24) is provided with a water spray hole (25). The nozzle (6) has a jet hole (31) on its conical structure. The high-temperature mixed gas is sprayed outward from the nozzle (6) through the jet hole (31), and the cooling water is sprayed inward from the outside of the explosion cooling temperature regulating ring (8) through the water spray hole (25). The high-temperature mixed gas and the cooling water collide, exchange heat and evaporate in the gas-liquid explosion cooling heat exchange space (26) to form a mixture of water vapor and high-temperature gas. The rear end of the jet tube (10) is connected to A mixer (12) is connected to the sub-shell (11), and an annular space (40) is left between the mixer (12) and the sub-shell (11). The rear end face of the mixer (12) is equipped with an end cap (14), and the side wall of the mixer (12) is equipped with a spray hole (13). The rear end of the sub-shell (11) is connected to a reducer outlet (15). A locking ring (16) is threaded on the intermediate flange (7). The front end face of the locking ring (16) abuts against the jet tube (10) to limit the jet tube (10). The fuel passage is internally threaded with an oil-gas mixing nozzle (20).

2. The aero-powered steam generator according to claim 1, characterized in that: As an alternative to welding the front end of the water pipe (4) to the end flange (1), the front end of the water pipe (4) is welded with an annular plate (36). The inner side of the front flange (2) has an enlarged section. The annular plate (36) is located inside the enlarged section of the front flange (2). The enlarged section is threaded with a limit nut (35). The limit nut (35) is threaded with a tightening bolt (34). The tightening bolt (34) presses against the annular plate (36), forcing the annular plate (36) to squeeze and seal against the front flange (2).

3. An aero-powered steam generator according to claim 1, characterized in that: As an alternative to the sequential connection of the main housing (3), intermediate flange (7), rear flange (9), sub-housing (11), and reducer outlet (15), the main housing (3) is directly connected to the reducer outlet (15), and a central tube (38) is inserted inside the main housing (3). The water pipe (4) and the cooling temperature regulating ring (8) are both located inside the central tube (38), and the locking ring (16) is threaded to the rear end of the central tube (38).

4. An aero-powered steam generator according to claim 3, characterized in that: The front end of the central tube (38) is provided with a sealing short section (37), which is welded to the end flange (1). The central tube (38) and the sealing short section (37) are threadedly sealed. An annular space II (39) is left between the sealing short section (37) and the water pipe (4). The water inlet channel (18) is opened on the end flange (1) and is connected to the annular space II (39).

5. An aero-powered steam generator according to claim 1, characterized in that: The central channel of the jet tube (10) comprises three sections: a conical inlet channel (27) in the front section, a circular extrusion channel (28) in the middle section, and a conical diffusion channel (29) in the rear section.

6. An aero-powered steam generator according to claim 1, characterized in that: There is an angle between the ejection direction of the nozzle (13) on the side wall of the mixer (12) and the radial direction of the mixer (12), and the airflow after passing through the nozzle (13) forms a swirling airflow.

7. An aero-powered steam generator according to claim 1, characterized in that: A thermometer (17) is installed on the outer side wall of the main housing (3).

8. An aero-powered steam generator according to claim 1, characterized in that: The oil-gas mixing nozzle includes an air inlet pipe (32) and an oil inlet pipe (33). The air inlet pipe (32) is located outside the oil inlet pipe (33). The rear end of the oil inlet pipe (33) is connected to the fuel injector. The rear end of the fuel injector is provided with a nozzle cap. A swirling hole (41) is machined on the side wall of the nozzle cap, and an impact hole (42) is machined on the rear end face of the nozzle cap.

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