A water spraying system for reducing noise automatically according to the height of rocket tail flame

Abstract

The present application belongs to the field of rocket launching technology, especially a follow-up rocket tail flame height automatic water spraying noise reduction system, which is installed on the ground foundation, including a launching platform body and three U-shaped cross-section bosses installed on the ground foundation, the bosses are arranged in a ring array outside the launching platform body, further comprising: a first water spraying pipe, a plurality of first water spraying pipes are installed in the array arranged flow guide holes on the launching platform body, a plurality of nozzles are installed on the inner wall of the first water spraying pipe; a water guide groove is opened at the top end of the boss, a plurality of water storage tanks with instantaneous water outlet function are installed on the water guide groove; a telescopic spray pipe is connected at the top end of the water guide groove and communicates with the inside. The present application sprays water on the rocket tail flame through multiple levels to reduce noise, has good noise reduction effect, uses splash type water spraying, does not need complex control and complex water and gas supply systems, and reduces the cost of rocket launching.

Description

Technical Field

[0001] This invention relates to the field of rocket launch technology, and in particular to an automatic water spray noise reduction system that follows the altitude of the rocket's exhaust plume. Background Technology

[0002] In the aerospace field, the high-temperature, high-speed exhaust gas generated during rocket launches is accompanied by intense noise, with sound pressure levels typically exceeding 160 dB. Due to disturbances caused by the complex structure of the launch system, this exhaust gas noise can propagate into the space where launch and control instruments are located, changing its propagation direction. The electrical components of these instruments are often highly sensitive to strong noise, which can easily cause them to malfunction, affecting the safety of the rocket launch. To control the exhaust gas noise generated during rocket launches, water jet noise reduction technology is primarily used in this field.

[0003] Existing application number 202110724890.0 proposes a high-level automatic water spray noise reduction system that follows the rocket's exhaust plume. This invention switches the water spray mode according to the rocket launch conditions, ensuring rocket safety while suppressing noise radiation and propagation. This patent uses a complex pipeline and air supply system to achieve water spray noise reduction for the rocket's exhaust plume. This noise reduction method is complex to control and costly. Therefore, we propose an automatic water spray noise reduction system that follows the height of the rocket's exhaust plume. Summary of the Invention

[0004] The present invention proposes an automatic water spray noise reduction system that follows the height of rocket exhaust plume, which solves the problems of complex control and high operating cost of existing rocket exhaust plume water spray noise reduction systems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automatic water spray noise reduction system that follows the altitude of a rocket's exhaust plume is installed on a foundation. It includes a launch platform body mounted on the foundation and three U-shaped cross-section bosses arranged in a ring array on the outside of the launch platform body. The system also includes: primary water spray pipes, multiple primary water spray pipes installed within guide holes arranged in an array on the launch platform body, with multiple nozzles installed on the inner wall of the primary water spray pipes; a water guide channel, located at the top of the bosses, with multiple water storage tanks equipped with instantaneous water discharge function installed on the water guide channel; and a telescopic nozzle. The top of the nozzle is connected to the bottom of one side of the water guide channel and communicates with its interior. The bottom water spray nozzle of the telescopic nozzle corresponds to one side of the launch platform body, and one side of the telescopic nozzle is equipped with a telescopic drive mechanism to drive its extension and retraction. The annular water spray noise reduction mechanism includes a support column movably installed inside the boss. The top of the support column is equipped with multiple arc-shaped water spray pipes with atomizing nozzles at the bottom. The high-level water tank is installed on the foundation through a support tower and supplies water to the first-stage water spray pipe and the annular water spray noise reduction mechanism through the water outlet pipe.

[0007] In a preferred embodiment, the water storage tank includes: a fixed frame, which is installed on both sides of the top of the boss, and the bottom of the fixed frame is fixed to a tank body with one side opening by a fixing ring; a telescopic rod, one side of which is hinged to the horizontal extension of the fixed frame, and the output shaft of the telescopic rod is hinged to a sealing cap with its top hinged to the opening of the tank body; and a water injection pipe, which is connected to the top of the tank body and is equipped with a valve.

[0008] In a preferred embodiment, the top of the boss is provided with a plurality of evenly arranged water inlet grooves on both sides, the water inlet grooves are connected to the interior of the water guide grooves and are located at the outlet of the corresponding water storage tank.

[0009] In a preferred embodiment, the telescopic nozzle includes a fixed pipe that communicates with the interior of the water guide channel. The fixed pipe is located on the side of the boss near the launch platform body. The fixed pipe is slidably sealed to a movable pipe, and the bottom end of the movable pipe is connected to a water spray nozzle with a trapezoidal horizontal cross-section.

[0010] In a preferred embodiment, the telescopic drive mechanism includes a second motor, a worm gear, and two worm wheels. The second motor is installed on the inner top wall of the mounting slot. The output shaft of the second motor is connected to the worm gear. Both sides of the worm gear are engaged with worm wheels. The worm wheels are rotatably installed in the mounting slot via a rotating shaft. A transmission rod is rotatably connected to the edge of the worm wheel via a rotating rod. The other end of the transmission rod is rotatably connected to the bottom end of the telescopic nozzle via a rotating rod.

[0011] In a preferred embodiment, the top of the support column is inclined, and the arc-shaped water spray pipe is installed on the inclined part of the support column. The arc-shaped water spray pipes on three different annular water spray noise reduction mechanisms on the same horizontal plane are combined to form a ring. When the arc-shaped water spray pipes at different heights spray water, they form multiple sets of water curtains with progressively larger diameters.

[0012] In a preferred embodiment, the annular water spray noise reduction mechanism further includes: a fixed box, two fixed boxes embedded in the inner walls of both sides of the boss, a motor is installed at one end of the fixed box, the output shaft of the motor is connected to a lead screw rotatably connected inside the fixed box, a moving block is slidably connected to the lead screw inside the fixed box, and one side of the moving block extends to the outside of the fixed box and is fixedly connected to the support column; and slide rails, slide rails are installed at both the upper and lower ends of the inner walls of both sides of the boss, and sliders fixedly connected to the side walls of the support column are slidably connected to the slide rails.

[0013] In a preferred embodiment, an arc-shaped water collection trough is provided between the three bosses, and the water collection trough is located below the arc-shaped water spray pipe on the corresponding annular water spray noise reduction mechanism.

[0014] In a preferred embodiment, the foundation is provided with multiple water storage tanks located inside the corresponding protrusions. Filter tanks with filtration effects are provided on both sides of the water collection tank and between the corresponding water storage tank. The water storage tanks are connected to an annular water spray noise reduction mechanism through a return water pipe.

[0015] In a preferred embodiment, both the water storage tank and the elevated water tank are connected to an inlet pipe, and a booster pump is installed on the elevated water tank.

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

[0017] 1. This invention proposes an automatic water spray noise reduction system that follows the height of the rocket exhaust plume. Through the setting of a primary water spray pipe, the system achieves primary water spray noise reduction of the rocket exhaust plume.

[0018] By using the protrusions, water tanks, and telescopic nozzles, water pressure can be used to automatically spray water to reduce noise. The three-point surround setting enables all-round water spraying to reduce noise from the rocket's exhaust plume. The direct spraying method utilizes the gravity of water, resulting in a large instantaneous flow rate. This eliminates the need for complex control and water / air supply systems, reducing rocket launch costs and providing support for civilian rockets and future large-scale rocket launches.

[0019] By setting up a ring-shaped water spray noise reduction mechanism, a multi-layered water curtain can be formed around the rocket launch site, further improving the noise reduction effect of the rocket launch.

[0020] 2. This invention proposes an automatic water spray noise reduction system that follows the height of the rocket's exhaust plume. By setting up a water storage tank, a water collection tank, and a filter tank, it is possible to recycle and reuse water, while reducing the water supply requirements of the annular water spray noise reduction mechanism during use.

[0021] 3. This invention proposes an automatic water spray noise reduction system that follows the height of the rocket's exhaust plume. By setting up a telescopic nozzle and a telescopic drive mechanism, the water spray height can be adjusted according to the height of the rocket's exhaust plume.

[0022] This invention reduces noise by spraying water into the rocket's exhaust plume in multiple layers, achieving a good noise reduction effect. At the same time, it adopts a splash-type water spray, eliminating the need for complex control and water / air supply systems, thus reducing rocket launch costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of an automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, as proposed in this invention.

[0024] Figure 2 This is a schematic diagram of the boss, telescopic nozzle, water guide groove, annular water spray noise reduction mechanism and water storage tank of an automatic water spray noise reduction system that follows the height of rocket tail flame proposed in this invention.

[0025] Figure 3 This is a schematic diagram of the boss, water guide channel, water inlet channel and telescopic drive mechanism of an automatic water spray noise reduction system that follows the height of rocket tail flame proposed in this invention.

[0026] Figure 4 This is a schematic diagram of the boss, water guide groove, water inlet groove and telescopic nozzle of an automatic water spray noise reduction system that follows the height of rocket tail flame proposed in this invention.

[0027] Figure 5 This is a schematic diagram of an automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, as proposed in this invention.

[0028] Figure 6 This is a schematic diagram of the launch platform body and the first-stage water spray pipe of an automatic water spray noise reduction system that follows the height of the rocket's exhaust plume, as proposed in this invention.

[0029] Figure 7 This is a schematic diagram of the support tower and high-level water tank of an automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, as proposed in this invention.

[0030] Figure 8 This is a schematic diagram of the telescopic nozzle of an automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, as proposed in this invention.

[0031] Figure 9 This is a schematic diagram of the annular water spray noise reduction mechanism of an automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, as proposed in this invention.

[0032] Figure 10 This is a schematic diagram showing the positions of the water storage tank, water collection tank, and filter tank of an automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, as proposed in this invention.

[0033] Figure 11 This is a water supply pipeline diagram for an automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, as proposed in this invention.

[0034] In the diagram: 1. Foundation; 2. Launch platform body; 201. First-stage water jet pipe; 202. Nozzle; 3. Boss; 301. Mounting groove; 302. Water guide groove; 303. Water inlet groove; 4. Support tower; 5. High-level water tank; 6. Water storage tank; 601. Tank body; 602. Fixing ring; 603. Fixing frame; 604. Sealing cover; 605. Telescopic rod; 606. Water injection pipe; 7. Annular water jet noise reduction mechanism; 701. Arc-shaped water jet pipe; 702. Support column; 703. Sliding block; 704. Slide rail; 705 706. Moving block; 707. Fixed box; 708. Lead screw; 709. Motor 1; 8000. Telescopic nozzle; 801. Fixed pipe; 802. Movable pipe; 803. Spray nozzle; 9. Water storage tank; 10. Water collection tank; 11. Filter tank; 12. Telescopic drive mechanism; 1201. Motor 2; 1202. Worm gear; 1203. Rotating shaft; 1204. Worm wheel; 1205. Rotating rod 1; 1206. Transmission rod; 1207. Rotating rod 2; 13. Return water pipe; 14. Inlet water pipe; 15. Outlet water pipe. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0036] Example 1: Refer to Figure 1-11 An automatic water spray noise reduction system that follows the height of a rocket's exhaust plume is installed on a foundation 1. It includes a launch platform body 2 mounted on the foundation 1 and three U-shaped cross-section bosses 3 arranged in a ring array on the outside of the launch platform body 2. The system also includes: primary water spray pipes 201, multiple primary water spray pipes 201 installed within guide holes arranged in an array on the launch platform body 2, with multiple nozzles 202 installed on the inner wall of the primary water spray pipes 201; and a water guide channel 302, also U-shaped. Multiple water storage tanks 6 with instantaneous water output function are installed on the top of the boss 3 and the water guide channel 302; the top of the telescopic nozzle 8 is connected to the bottom of one side of the water guide channel 302 and communicates with its interior, the bottom water spray nozzle 803 of the telescopic nozzle 8 corresponds to one side of the launch platform body 2, and one side of the telescopic nozzle 8 is provided with a telescopic drive mechanism 12 to drive its extension and retraction; the high-level water tank 5 is installed on the foundation 1 through the support tower 4 and supplies water to the first-level water spray pipe 201 through the water outlet pipe 15.

[0037] The water storage tank 6 includes: a fixed frame 603, which is installed on both sides of the top of the boss 3, and the bottom of the fixed frame 603 is fixed to a tank body 601 with an opening on one side by a fixing ring 602; a telescopic rod 605, one side of which is hinged to the horizontal extension of the fixed frame 603, and the output shaft of the telescopic rod 605 is hinged to a sealing cover 604 with its top hinged to the opening of the tank body 601; and a water injection pipe 606, which is connected to the top of the tank body 601 and is equipped with a valve.

[0038] The top of the boss 3 has multiple evenly arranged water inlet grooves 303 on both sides. The water inlet grooves 303 are connected to the interior of the water guide groove 302 and are located at the outlet of the corresponding water storage tank 6. When the sealing cover 604 on the water storage tank 6 is opened, the water in the tank 601 is quickly splashed into the water inlet grooves 303.

[0039] The telescopic nozzle 8 includes a fixed pipe 801 that communicates with the inside of the water guide trough 302. The fixed pipe 801 is located on the side of the boss 3 near the launch platform 2. The fixed pipe 801 is slidably sealed to a movable pipe 802. The bottom end of the movable pipe 802 is connected to a water spray nozzle 803 with a trapezoidal horizontal cross section. The trapezoidal flat design results in high water pressure and a wide spray range.

[0040] The telescopic drive mechanism 12 includes a second motor 1201, a worm gear 1202, and two worm wheels 1204. The second motor 1201 is installed on the inner top wall of the mounting groove 301. The output shaft of the second motor 1201 is connected to the worm gear 1202. Both sides of the worm gear 1202 are meshed with worm wheels 1204. The worm wheels 1204 are rotatably installed in the mounting groove 301 through a rotating shaft 1203. The edge of the worm wheel 1204 is rotatably connected to a transmission rod 1206 through a rotating rod 1205. The other end of the transmission rod 1206 is rotatably connected to the bottom end of the telescopic nozzle 8 through a rotating rod 1207. The transmission of the worm gear 1202 and the worm wheel 1204 provides a mechanical locking function during use, preventing the impact of water flow from affecting the position of the water spray nozzle 803 at the bottom of the telescopic nozzle 8.

[0041] Both the water storage tank 6 and the high-level water tank 5 are connected to water inlet pipes 14, and the high-level water tank 5 is equipped with a booster pump to increase the pressure inside the high-level water tank 5 and increase the speed and flow rate of the water sprayed out.

[0042] Before use, water is added to the water storage tank 6 and the high-level water tank 5. Before rocket launch, the first-stage water spray pipe 201 is opened to spray water, forming a water film on the surface of the launch platform 2 to reduce damage to the launch platform 2 from the high-level rocket launch. At the moment of rocket ignition, all water storage tanks 6 on the control platform 2 are opened simultaneously. The output shaft of the telescopic rod 605 drives the hinged sealing cover 604 on the water storage tank 6 to rotate upward and open. The water inside flows into the guide channel 302 through the water inlet trough 303 and into the telescopic nozzle 8. Since the distance between the different water storage tanks 6 and the telescopic nozzle 8 increases sequentially, the water continuously flows through the trapezoidal water spray nozzle 803 at the bottom of the telescopic nozzle 8. The spray lasts for approximately 20 seconds. Different numbers of water tanks 6 can be set according to specific spraying time requirements. The three water nozzles 803 form a ring-shaped spray, achieving noise reduction by spraying water onto the rocket's exhaust plume. Simultaneously, as the rocket's exhaust plume rises, the motor 1201 on the telescopic drive mechanism 12 drives the worm gear 1202 to rotate. The worm gear 1202 meshes with the worm wheel 1204, driving the two worm wheels 1204 to rotate. Through the transmission rod 1206, the movable pipe 802 at the bottom of the telescopic nozzle 8 and the water nozzle 803 move upwards, changing positions according to the height of the exhaust plume, resulting in good noise reduction.

[0043] Example 2, refer to Figure 1 , 2 Unlike embodiment 1, embodiment 9 also includes an annular water spray noise reduction mechanism 7. The annular water spray noise reduction mechanism 7 includes a support column 702 movably installed inside the boss 3. The top of the support column 702 is equipped with multiple arc-shaped water spray pipes 701 with atomizing nozzles at the bottom. The high-level water tank 5 supplies water to the annular water spray noise reduction mechanism 7 through the water outlet pipe 15. The top of the support column 702 is inclined, and the arc-shaped water spray pipes 701 are set on the inclined part of the support column 702. The arc-shaped water spray pipes 701 on three different annular water spray noise reduction mechanisms 7 on the same horizontal plane are combined to form a ring. When the arc-shaped water spray pipes 701 at different heights spray water, they form multiple sets of water curtains with progressively increasing diameters.

[0044] The annular water spray noise reduction mechanism 7 further includes: a fixed box 706, two fixed boxes 706 are embedded in the inner walls of both sides of the boss 3, a motor 708 is installed at one end of the fixed box 706, the output shaft of the motor 708 is connected to a lead screw 707 rotatably connected inside the fixed box 706, a moving block 705 is slidably connected to the lead screw 707 inside the fixed box 706, one side of the moving block 705 extends to the outside of the fixed box 706 and is fixedly connected to the support column 702; and a slide rail 704, slide rails 704 are installed at both the upper and lower ends of the inner walls of both sides of the boss 3, and sliders 703 are slidably connected to the slide rails 704 and fixedly connected to the side walls of the support column 702. The arrangement of the upper and lower sliders 703 and the slide rails 704 ensures the stability of the annular water spray noise reduction mechanism 7 during movement.

[0045] An arc-shaped water collection trough 10 is provided between the three bosses 3. The water collection trough 10 is located below the arc-shaped water spray pipe 701 on the corresponding annular water spray noise reduction mechanism 7. After the annular water spray noise reduction mechanism 7 moves to the water spray position, it is located directly above the water collection trough 10.

[0046] The foundation 1 is provided with multiple water storage tanks 9 located inside the corresponding protrusions 3. Both sides of the water collection tank 10 and the corresponding water storage tank 9 are provided with filter tanks 11 with filtration effect. The filter tanks 11 are filled with filter elements and filter screens. The depth of the water storage tank 9 is much greater than the depth of the filter tank 11. The depth of the filter tank 11 is greater than the depth of the water collection tank 10. Through the flow and infiltration of water, the water in the water collection tank 10 flows into the water storage tank 9 for collection and reuse through the filtration effect of the filter elements and filter screens in the filter tank 11. The water storage tank 9 is connected to a ring-shaped water spray noise reduction mechanism 7 through a return water pipe 13.

[0047] The aforementioned inlet pipe 14, outlet pipe 15, and return pipe 13 are all equipped with corresponding valves and liquid pumps.

[0048] When not in use, each annular water spray noise reduction mechanism 7 is located on the side of the boss away from the launch platform body 2. The arc-shaped water spray pipe 701 will not obstruct the transport of the rocket into the launch platform body 2. After the rocket is installed in place, the motor 708 drives the lead screw 707 to rotate. The lead screw 707 is threadedly connected to the moving block 705, which moves the moving block 705 to one side. This causes the support column 702 and the arc-shaped water spray pipe 701 on it to move towards the center of the launch platform body 2. At this time, the slider 703 slides on the slide rail 704. After moving to the fixed position... At the other end of box 706, the arc-shaped water spray pipes 701 on each annular water spray noise reduction mechanism 7 form multiple annular structures. Before the rocket launch, the atomizing nozzles on the arc-shaped water spray pipes 701 are activated to spray water, forming a large-area, multi-layered water curtain, which absorbs and isolates the noise generated when the rocket exhaust flame is launched. The water sprayed from the atomizing nozzles falls into the water collection tank 10 for collection, and then flows into the water storage tank 9 for collection and reuse through the filtration of the filter element and filter screen in the filter tank 11. At the same time, the water supply pressure of the arc-shaped water spray pipes 701 when spraying water is reduced.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic water spray noise reduction system that follows the height of a rocket's exhaust plume, installed on a foundation (1), comprising a launch platform body (2) installed on the foundation (1) and three U-shaped cross-section bosses (3), the bosses (3) arranged in a ring array on the outside of the launch platform body (2), characterized in that, Also includes: A primary water spray pipe (201) is installed in the guide holes arranged in an array on the launch platform body (2). Multiple nozzles (202) are installed on the inner wall of the primary water spray pipe (201). Water guide channel (302) is provided on the top of the boss (3), and multiple water storage tanks (6) with instant water discharge function are installed on the water guide channel (302); Telescopic nozzle (8), the top end of the telescopic nozzle (8) is connected to the bottom of one side of the water guide trough (302) and communicates with its interior. The bottom end of the telescopic nozzle (8) spray nozzle (803) corresponds to one side of the launch platform body (2), and one side of the telescopic nozzle (8) is provided with a telescopic drive mechanism (12) to drive its extension and retraction. The ring-shaped water spray noise reduction mechanism (7) includes a support column (702) movably installed inside the boss (3), and the top of the support column (702) is equipped with multiple arc-shaped water spray pipes (701) with atomizing nozzles at the bottom. The high-level water tank (5) is installed on the foundation (1) by a support tower (4) and supplies water to the first-level water spray pipe (201) and the annular water spray noise reduction mechanism (7) through the water outlet pipe (15); The top of the support column (702) is inclined, and the arc-shaped water spray pipe (701) is set on the inclined part of the support column (702). The arc-shaped water spray pipes (701) on the three different annular water spray noise reduction mechanisms (7) on the same horizontal plane are combined into a ring. When the arc-shaped water spray pipes (701) at different heights spray water, they form multiple sets of water curtains with progressively larger diameters. The annular water spray noise reduction mechanism (7) further includes: a fixed box (706) and a slide rail (704); two fixed boxes (706) are embedded in the inner walls of both sides of the boss (3), and a motor (708) is installed at one end of the fixed box (706). The output shaft of the motor (708) is connected to a lead screw (707) rotatably connected inside the fixed box (706). A moving block (705) is slidably connected inside the fixed box (706) via a screw drive on the lead screw (707). One side of the moving block (705) extends to the outside of the fixed box (706) and is fixedly connected to the support column (702); slide rails (704) are installed at both ends of the inner walls of both sides of the boss (3), and sliders (703) fixedly connected to the side walls of the support column (702) are slidably connected to the slide rails (704); When not in use, each annular water spray noise reduction mechanism (7) is located on the side of the boss away from the launch platform body (2), and the arc-shaped water spray pipe (701) will not obstruct the rocket from entering the launch platform body (2). After the rocket is installed in place, the motor (708) drives the lead screw (707) to rotate. The lead screw (707) is threadedly connected to the moving block (705), which drives the moving block (705) to move to one side, thereby driving the support column (702) and the arc-shaped water spray pipe on it. 701) Moves towards the center of the launch platform body (2). At this time, the slider (703) slides on the slide rail (704). When it moves to the other end of the fixed box (706), the arc-shaped water spray pipes (701) on each ring-shaped water spray noise reduction mechanism (7) form multiple ring structures. Before the rocket launch, the atomizing nozzles on the arc-shaped water spray pipes (701) are activated to spray water, forming a large area of ​​multi-layered water curtain, which absorbs and isolates the noise generated when the rocket tail flame is launched.

2. The automatic water spray noise reduction system for following the altitude of a rocket's exhaust plume as described in claim 1, characterized in that, The water storage tank (6) includes: A fixed frame (604) is installed on both sides of the top of the boss (3). The bottom of the fixed frame (604) is fixed with a tank (601) with an opening on one side by a fixing ring (602). Telescopic rod (605), one side of which is hinged to the horizontal extension of the fixed frame (604), and the output shaft of the telescopic rod (605) is hinged to a sealing cap (603) with its top hinged to the opening of the tank body (601). Water injection pipe (606) is connected to the top of the tank (601) and is equipped with a valve.

3. The automatic water spray noise reduction system for following the altitude of a rocket's exhaust plume according to claim 2, characterized in that, The top of the boss (3) has multiple evenly arranged water inlet grooves (303) on both sides. The water inlet grooves (303) are connected to the interior of the water guide groove (302) and are located at the outlet of the corresponding water storage tank (6).

4. The automatic water spray noise reduction system for following the altitude of a rocket's exhaust plume according to claim 1, characterized in that, The telescopic nozzle (8) includes a fixed pipe (801) that communicates with the inside of the water guide trough (302). The fixed pipe (801) is located on the side of the boss (3) near the launch platform body (2). The fixed pipe (801) is slidably sealed to a movable pipe (802). The bottom end of the movable pipe (802) is connected to a water spray nozzle (803) with a trapezoidal horizontal cross section.

5. The automatic water spray noise reduction system for following the altitude of a rocket's exhaust plume according to claim 4, characterized in that, The telescopic drive mechanism (12) includes a second motor (1201), a worm (1202) and two worm wheels (1204). The second motor (1201) is installed on the inner top wall of the mounting groove (301). The output shaft of the second motor (1201) is connected to the worm (1202). Both sides of the worm (1202) are meshed with worm wheels (1204). The worm wheels (1204) are rotatably installed in the mounting groove (301) through a rotating shaft (1203). The edge of the worm wheel (1204) is rotatably connected to a transmission rod (1206) through a rotating rod (1205). The other end of the transmission rod (1206) is rotatably connected to the bottom end of the telescopic nozzle (8) through a rotating rod (1207).

6. The automatic water spray noise reduction system for following the altitude of a rocket's exhaust plume according to claim 1, characterized in that, An arc-shaped water collection trough (10) is provided between the three bosses (3), and the water collection trough (10) is located below the arc-shaped water spray pipe (701) on the corresponding annular water spray noise reduction mechanism (7).

7. The automatic water spray noise reduction system for following the altitude of a rocket's exhaust plume according to claim 6, characterized in that, The foundation (1) is provided with multiple water storage tanks (9) located inside the corresponding protrusions (3). The two sides of the water collection tank (10) and the corresponding water storage tank (9) are provided with filter tanks (11) with filtering effect. The water storage tank (9) is connected to a ring-shaped water spray noise reduction mechanism (7) through a return water pipe (13).

8. The automatic water spray noise reduction system for following the altitude of a rocket's exhaust plume according to claim 1, characterized in that, Both the water storage tank (6) and the high-level water tank (5) are connected to water inlet pipes (14), and a booster pump is installed on the high-level water tank (5).

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