Large flow height difference booster system

Abstract

The invention discloses a large flow height difference boosting system, comprising a water spray supply system, a nitrogen supply system and an air boosting system, wherein the water spray supply system is respectively connected to the nitrogen supply system and the air boosting system, and one side of the air boosting system is connected to the air supply system; the beneficial effect of the invention is that the large flow height difference boosting system adopts a nitrogen supply system for control buffering auxiliaryly arranged between the air boosting system and the water spray supply system, which can buffer the pipeline pressure while making the sprayed water easier to form water mist, and is auxiliaryly provided with a pre-boosting system, and adopts a special switch control structure, which can quickly realize the switch response of the pipeline, and the structure adopts a spherical design, has good adaptability to the pipeline pressure, is more water-saving, and is convenient for later maintenance and improves operability.

Description

Technical Field

[0001] The invention relates to the technical field of rocket launch cooling equipment, in particular to a large-flow height difference boosting system. Background Art

[0002] During the launch process of modern rockets, there will be extremely high-intensity noise and flame ablation when the space launch rocket ignites and takes off. In order to reduce and avoid the impact of strong noise and flame on equipment and flight safety, it is necessary to provide ultra-large flow water jets in steps along the timing of ignition and takeoff to reduce the impact of noise and flame on rocket flight safety and ground equipment.

[0003] The known practice at this stage is to set up a counter-spray high-pressure water supply system at the bottom of the rocket's tail flame, using the impact of water to form water mist. While achieving a cooling effect, the disordered movement of the water mist molecules absorbs noise energy and converts it into internal energy, thereby reducing noise.

[0004] For example, the rocket launch water spray cooling and noise reduction system disclosed in patent publication number CN103090723B uses pressurized water spray technology to achieve cooling and noise reduction. However, this system mainly modifies the pipeline system and does not make improvements to the pressurized system. The current pressurized spray system sprays a large amount of water, but only a small part of the water mist is used for cooling and noise reduction, and the remaining water is directly discharged, resulting in a waste of water resources.

[0005] A rocket launch system with water spray cooling and noise reduction functions, such as that disclosed in patent publication number CN103712522A, is mainly an improvement on the launch platform. It uses a movable platform, so the bottom is easily unstable during launch. This structure can usually only cool and reduce the noise of the launch of small rockets.

[0006] The above-mentioned current rocket launch water spray cooling and noise reduction system mainly uses water spray pipelines that are controlled by valves. However, during the application process, valve leakage often occurs due to excessive pipeline pressure. At the same time, although the response of the valve switch can be controlled by the electromagnetic valve, the switch of the electromagnetic valve does not have a locking effect, which can easily cause the problem of accidental opening and closing. In view of this, in-depth research was conducted on the above-mentioned problems, which led to the present case. Summary of the invention

[0007] The purpose of the present invention is to solve the above problems, design a large flow height difference boosting system, and solve the existing background technology problems.

[0008] The technical solution of the present invention to achieve the above-mentioned purpose is: a large flow height difference boosting system, including a water spray supply system, a nitrogen supply system and an air boosting system, wherein the water spray supply system is connected to the nitrogen supply system and the air boosting system respectively, and one side of the air boosting system is connected to the air supply system;

[0009] The air boost system comprises a pair of air tanks, the pair of air tanks are connected to the ground through four pairs of pillars, a pair of branch air outlet pipes extend from the pair of air tanks, and the ends of the pair of branch air outlet pipes are connected to the main air outlet pipe;

[0010] The water spray supply system includes a water tank, which is a horizontal cylindrical carbon steel structure. A water outlet is provided at the bottom of the water tank, and a pair of pressurized air inlets are provided at the top of the water tank. The pair of pressurized air inlets are connected to the main air outlet pipe through a pair of connecting pipes.

[0011] A pair of switch control structures are provided between the pair of connecting pipes and the pair of supercharged air inlets;

[0012] The switch control structure includes: a control pipe, a pair of flanges, a control valve slot, a control valve core and a control valve stem;

[0013] The two ends of the control pipe are respectively connected between the connecting pipe and the supercharged air inlet through a pair of flanges, the middle section of the control pipe is provided with a control valve slot, the control valve slot is provided with a control valve core, the control valve core is closed on the control valve slot, a control valve stem extends from the control valve core and penetrates the control valve slot, and the control valve stem is connected to an electric control switch assembly;

[0014] The electric control switch assembly includes a mounting seat, a mounting seat is provided on the control valve slot, a control slot shell is connected to the mounting seat, the control slot shell is a rectangular cavity shell, a rotating shaft seat is provided on one side of the control slot shell, a rotating shaft seat is provided on the rotating shaft seat, a rotating gear is sleeved on the rotating shaft, a control gear is sleeved on the end of the control valve stem, the control gear is meshed with the rotating gear, a driving worm gear is sleeved on the rotating shaft, a driving worm is provided on the inner side of the control slot shell, which is meshed with the driving worm gear, and a driving motor is connected to one end of the driving worm gear.

[0015] The control valve slot is a spherical cavity structure, the control valve core is located in a spherical valve member matched with the control valve slot, and a straight through groove is opened on the control valve core.

[0016] The driving motor is connected to a motor controller, the motor controller is provided with a command transceiver chip, and one side of the motor controller is connected to a manual control switch.

[0017] The control tube is a plate with a cylindrical cavity structure and its two ends and a pair of flanges are integrated structures.

[0018] The air boosting system also includes a pre-boosting tank, which is connected between the water tank and the main air outlet pipe, and the above-mentioned switch control structure is arranged between the pre-boosting tank and the water tank.

[0019] The nitrogen supply system comprises a gas cylinder group consisting of a plurality of nitrogen buffer gas cylinders connected in parallel, one side of the gas cylinder group is connected to a two-position three-way valve box, and two pairs of nitrogen supply pipes extend from the two-position three-way valve box and are respectively connected to the water spray supply system;

[0020] The nitrogen supply system also includes a pilot gas control pipe connected to the gas cylinder group and the main gas outlet pipe respectively, and the above-mentioned switch control structure is arranged at the connection between the pilot gas control pipe and the gas cylinder group.

[0021] The water spray supply system also includes a main water outlet pipe, the water outlet is connected to the main water outlet pipe, the main water outlet pipe is branched into eight branch water outlet pipes, and each of the eight branch water outlet pipes is provided with one of the above-mentioned switch control structures;

[0022] The four branched water outlet pipes are primary water spray pipes respectively connected to a pair of symmetrically arranged primary water spray modules, and the remaining four branched water outlet pipes are secondary water spray pipes connected to the secondary water spray modules;

[0023] The first-stage water spray module includes a plurality of core-stage water spray heads, a plurality of canopy water spray heads and a plurality of booster water spray heads, which are respectively mounted on a pair of branch water outlet pipes, and the four first-stage water spray pipes are respectively connected to a nitrogen supply pipe;

[0024] The secondary water spray module includes a plurality of secondary water spray heads respectively connected to the four branch water outlet pipes, and the four secondary water spray pipes are connected to a pair of nitrogen supply pipes.

[0025] The pilot air control pipe is provided with a pair of connection points on both sides of the main air outlet pipe and is respectively provided with a pair of the above-mentioned switch control structures.

[0026] The air supply system includes an air compressor unit, which uses an air compressor unit with an exhaust flow rate of 1.9 to 5.0 Nm3 / min and a maximum exhaust pressure of 1.3 MPa to supply air. The air compressor unit is composed of several air supply pipes connected to one side, and the air supply pipes are connected to a pair of air tanks and are provided with a pair of switch control structures.

[0027] It also includes a measurement and control system, which consists of a PLC main control device, a host computer, PLC development software, host computer configuration software, cables, sensors and the above-mentioned switch control structure, etc., and is used to complete the start and stop control of the switch control structure and the collection of parameters such as the opening, pressure, liquid level, and flow of the switch control structure, to achieve remote opening control and feedback value monitoring of the 16-way gas / electric adjustment switch control structure; to complete manual / automatic switch control of the switch control structure; and to collect 52-way pressure, 2-way liquid level, and 10-way flow parameters related to the display system in real time.

[0028] The large flow height difference boosting system manufactured by utilizing the technical solution of the present invention adopts a nitrogen supply system for control buffering that is auxiliaryly arranged between the air boosting system and the water spraying supply system, which can buffer the pipeline pressure while making the sprayed water easier to form water mist, and is auxiliaryly provided with a pre-boosting system, and adopts a special switch control structure, which can quickly realize the switch response of the pipeline. At the same time, the structure adopts a spherical design, has good adaptability to the pipeline pressure, is more water-saving, and is convenient for later maintenance and improves operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structural principle of the large flow height difference boosting system of the present invention.

[0030] Figure 2 This is a schematic diagram of the water tank structure of the large flow height difference boosting system of the present invention.

[0031] Figure 3 This is a schematic diagram of the air tank structure of the large flow height difference boosting system of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the switch control structure of the large flow height difference boosting system of the present invention.

[0033] Figure 5 This is an axonometric cross-sectional structural schematic diagram of the switch control structure of the large flow height difference boosting system of the present invention.

[0034] Figure 6 This is an isometric structural schematic diagram of the switch control structure of the large flow height difference boosting system described in the present invention.

[0035] Figure 7 This is a structural block diagram of the control system of the large flow height difference boosting system of the present invention.

[0036] Figure 8 This is a network structure diagram of the PLC control system of the large flow height difference boosting system described in the present invention.

[0037] In the figure: 1. Water spray supply system; 2. Nitrogen supply system; 3. Air boost system; 4. Air supply system; 5. Measurement and control system; 6. Switch control structure;

[0038] 11. Water tank; 12. Water outlet; 13. Pressurized air inlet; 14. Connecting pipe; 15. Main water outlet pipe; 16. Branch water outlet pipe; 17. Primary water spray module; 18. Secondary water spray module;

[0039] 21. Gas cylinder assembly; 22. Two-position three-way valve box; 23. Nitrogen supply pipe; 24. Manipulator gas control pipe;

[0040] 31. Air tank; 32. Support; 33. Branch air outlet pipe; 34. Main air outlet pipe; 35. Pre-boost tank;

[0041] 41. Air compressor unit; 42. Air supply pipe;

[0042] 61. Control pipe; 62. Flange; 63. Control valve slot; 64. Control valve core; 65. Control valve stem; 66. Mounting seat; 67. Control slot shell; 68. Rotating shaft seat; 69. Rotating shaft; 610. Rotating gear; 611. Control gear; 612. Drive worm wheel; 613. Drive worm; 614. Drive motor. DETAILED DESCRIPTION

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings:

[0044] Embodiment: According to the specification attached Figure 1-8 It can be seen that this case is a large-flow high-difference boosting system, which is mainly used for cooling and noise reduction during rocket launch, including a water spray supply system 1, a nitrogen supply system 2 and an air boosting system 3. The water spray supply system 1 is connected to the nitrogen supply system 2 and the air boosting system 3 respectively, and the air boosting system 3 is connected to the air supply system 4 on one side. In the specific implementation process, the large-flow high-pressure differential boosting system is mainly composed of the following subsystems. The water spray supply system 1 is used as the main water spray generation system, and the air boosting system 3 is arranged on its periphery to supply pressure to the water spray supply system 1. The nitrogen supply system 2 is used to provide operating buffer gas for the water spray supply system 1. At the same time, the air boosting system 3 acts as a pressure stabilizing source for the operating buffer gas. In addition, there is a measurement and control system 5 as the control head in the control. The following switch control structure 6 plays a core role in the measurement and control system 5. Each switch control structure 6 is numbered separately and can be controlled independently, or multiple switch structures can be grouped and controlled according to the operation mode;

[0045] According to the instruction manual Figure 1-8It can be seen that the air boosting system 3 includes a pair of air tanks 31, the pair of air tanks 31 are connected to the ground through four pairs of pillars 32, a pair of branch air outlet pipes 33 extend from the pair of air tanks 31, and the ends of the pair of branch air outlet pipes 33 are connected to a main air outlet pipe 34;

[0046] The air boost system 3 further includes a pre-boost tank 35, which is connected between the water tank 11 and the main air outlet pipe 34, and a switch control structure 6 is provided between the pre-boost tank 35 and the water tank 11;

[0047] The air tank 31 has a volume of 1000m3, a design pressure of 1.85MPa, a spherical structure, an inner diameter of φ12300mm, and a total installation height of 14500mm. It is effectively fixed to the foundation through 8 pillars 32, and the number is 2. The pressurized gas pipeline modification of adding DN50 air supply and 2 φ480X10m pipelines is a pair of branch gas pipes 33. In addition to the pressurization function of the water tank 11, the air tank 31 can also be used as a pressure stabilizing source for the control gas buffer tank.

[0048] According to the instruction manual Figure 1-8 It can be seen that the water spray supply system 1 includes a water tank 11, which is a horizontal cylindrical carbon steel structure. A water outlet 12 is provided at the bottom of the water tank 11, and a pair of booster air inlets 13 are provided at the top of the water tank 11. The pair of booster air inlets 13 are connected to the main air outlet pipe 34 through a pair of connecting pipes 14;

[0049] The water tank 11 has a volume of 120m3, a design pressure of 1.6MPa, and a horizontal cylindrical carbon steel structure. The inner diameter of the water tank 11 is φ3500mm, the length is about 13m, the height of the water tank 11 is 4.1m, the height of the base support is 3.1m, and the total installation height is 7.2m; the inner surface of the water tank 11 is rust-proofed; the diameter of the water outlet 12 at the bottom of the container center is DN1600, and the water outlet 12 is equipped with an anti-vortex device, and the DN450 main boost ports of the water tank 11 are arranged at the top of the container. 3.4m away; the main pressure-bearing component of water tank 11 is made of Q345R, and the thickness of the main cylinder is 20mm; considering the reinforcement of DN1600 water outlet 12, the thickness of the cylinder of the middle 2000mm length is welded with 30mm steel plate. Water tank 11 passed the 2.0MPa hydraulic test before leaving the factory. After water tank 11 was installed on the foundation of water tank 11 that can bear 200T at the test site, the base was welded and fixed, and the anti-overturning moment support beam was fixed;

[0050] The water spray supply system 1 further comprises a main water outlet pipe 15, the water outlet 12 is connected to the main water outlet pipe 15, the main water outlet pipe 15 branches out into eight branch water outlet pipes 16, and each of the eight branch water outlet pipes 16 is provided with one of the above-mentioned switch control structures 6;

[0051] The four branch water outlet pipes 16 are primary water spray pipes respectively connected to a pair of symmetrically arranged primary water spray modules 17, and the remaining four branch water outlet pipes 16 are secondary water spray pipes connected to secondary water spray modules 18;

[0052] The primary water spray module 17 includes a plurality of core water spray heads, a plurality of umbrella water spray heads and a plurality of booster water spray heads, which are respectively mounted on a pair of branch water outlet pipes 16, and the four primary water spray pipes are respectively connected to a nitrogen supply pipe 23;

[0053] The secondary water spray module 18 includes a plurality of secondary water spray heads respectively connected to four branch water outlet pipes 16, and the four secondary water spray pipes are connected to a pair of nitrogen supply pipes 23;

[0054] A pair of switch control structures 6 are provided between the pair of connecting pipes 14 and the pair of supercharged air inlets 13;

[0055] In the specific implementation process, the water tank 11 is pressurized by the air boosting system 3 and then pumps water out from the main water outlet pipe 15 to eight branch water outlet pipes 16. The eight branch water outlet pipes 16 are divided into two groups. One group of four branch water outlet pipes 16 is connected to a pair of primary water spray modules 17, and the other group of four branch water outlet pipes 16 is connected to a secondary water spray module 18, which is mainly used for spraying water for cooling and noise reduction. The operation of the main water outlet pipe 15 and the branch water outlet pipes 16 is controlled by the improved switch control structure 6 to ensure sealing and rapid switch response.

[0056] The umbrella-shaped sprinkler head and the core-stage sprinkler head use a noise reduction nozzle with a special-shaped flat bell-shaped structure; when the static pressure at the nozzle inlet is 0.30MPa, the flow rate is 1.80t / s; when the spray distance is 10m, the maximum drop height is about 1.3m, and when the spray distance is 12.4m, the maximum spray width is about 4.5m.

[0057] The secondary sprinkler head and booster sprinkler head use anti-ablation nozzles in the "round tube + elbow" mode installed on the injection main pipe. The nozzle angle is 20° downward. A 1 / 2 model of the verification system is established. The inlet of the bottom 1.6m main water supply pipe is given as 0.5MPa as the pressure inlet boundary condition, and the nozzle outlet is given atmospheric pressure. The nozzle outlet flow is optimized by adjusting the nozzle nozzle diameter.

[0058] According to the instruction manual Figure 1-8 It can be seen that the nitrogen supply system 2 includes a gas cylinder group 21 formed by a plurality of nitrogen buffer gas cylinder groups 21 connected in parallel, and a two-position three-way valve box 22 is connected to one side of the gas cylinder group 21. Two pairs of nitrogen supply pipes 23 extend from the two-position three-way valve box 22 and are respectively connected to the water spray supply system 1; the two-position three-way valve box 22 on the nitrogen supply system 2 provides the system with operating buffer gas;

[0059] The nitrogen supply system 2 further comprises a pilot gas control pipe 24 connected to the gas cylinder group 21 and the main gas outlet pipe 34 respectively, and a switch control structure 6 is provided at the connection between the pilot gas control pipe 24 and the gas cylinder group 21 .

[0060] The pilot air control pipe 24 is provided with a pair of connection points on both sides of the main air outlet pipe 34 and is respectively provided with a pair of the above-mentioned switch control structures 6 .

[0061] According to the instruction manual Figure 1-8 It can be seen that the air supply system 4 includes an air compressor unit 41, which uses an air compressor unit with an exhaust flow rate of 1.9-5.0Nm3 / min and a maximum exhaust pressure of 1.3MPa for air supply. The air compressor unit 41 is connected to a plurality of air supply pipes 42 on one side, and the air supply pipes 42 are connected to a pair of air tanks 31 and are provided with a pair of switch control structures 6. The air supply system 4 is used to provide compressed air for the air boosting system 3. The air unit is provided with a cold dryer and a filter for removing oil and water. The dust content of the outlet air is 0.003μm and the oil content is less than 0.003mg / m3 to avoid pollution to the air tank 31; the air and power supply are 380V / 50Hz, the rated power is 37KV, the frequency control is fixed, the air is cooled, the noise level is 65±2dB(A), the insulation level of the main motor is F, and the protection level of the main motor is IP66. After the air compressor unit was assembled and debugged, the top rainproof canopy was built and the surrounding rainproof was carried out.

[0062] According to the instruction manual Figure 7-8 It can be seen that the measurement and control system 5 is composed of a PLC main control device, a host computer, PLC development software, host computer configuration software, cables, sensors and the above-mentioned switch control structure 6, etc., which is used to complete the start and stop control of the switch control structure 6 and the collection of parameters such as the opening, pressure, liquid level, flow, etc. of the switch control structure 6, to realize the remote opening control and feedback value monitoring of the 16-way gas / electric adjustment switch control structure 6; to complete manual / automatic switch control of the switch control structure 6; and to collect and display system-related 52-way pressure, 2-way liquid level, and 10-way flow parameters in real time.

[0063] According to the instruction manual Figure 1-6 It can be seen that the switch control structure 6 includes: a control tube 61, a pair of flanges 62, a control valve groove 63, a control valve core 64 and a control valve stem 65, and their connection relationship and position relationship are as follows;

[0064] The two ends of the control pipe 61 are connected between the connecting pipe 14 and the supercharged air inlet 13 through a pair of flanges 62 respectively. A control valve groove 63 is provided in the middle section of the control pipe 61. A control valve core 64 is provided on the control valve groove 63. The control valve core 64 is sealed on the control valve groove 63.

[0065] In order to realize the intelligent control of each pipeline as mentioned above and the comprehensive convenience of later maintenance and control response closure, the present application designs a special switch control structure 6, whose main body is a control tube 61 of a tubular structure, and the control tube 61 is a plate of a cylindrical cavity structure and is an integrated structure with a pair of flanges 62 at both ends, which is convenient for connection to the pipeline; a control valve groove 63 is provided in the middle section of the control tube 61, and a rotatable control valve core 64 is provided inside the control valve groove 63, the control valve groove 63 is a spherical cavity structure, the control valve core 64 is located in the spherical valve member matched with the control valve groove 63, and a straight through groove is opened on the control valve core 64. The spherical structure of the control valve core 64 can play a good sealing role on the one hand to avoid leakage problems, and on the other hand, it can better overcome the pipeline pressure compared with the butterfly valve, and the control valve core 64 is connected to the control valve stem 65, and the electric control switch assembly on the control valve stem 65 is used to realize the purpose of remote control of the control valve stem 65 to achieve the purpose of fixed angle rotation.

[0066] The electric control switch assembly includes a mounting seat 66, a mounting seat 66 is provided on the control valve slot 63, a control slot shell 67 is connected to the mounting seat 66, the control slot shell 67 is a rectangular cavity shell, a rotating shaft seat 68 is provided on one side of the control slot shell 67, a rotating shaft 69 is provided on the rotating shaft seat 68, a rotating gear 610 is sleeved on the rotating shaft 69, a control gear 611 is sleeved on the end of the control valve stem 65, the control gear 611 is meshed with the rotating gear 610, a driving worm gear 612 is sleeved on the rotating shaft 69, a driving worm 613 is provided on the inner side of the control slot shell 67, meshed with the driving worm gear 612, and a driving motor 614 is connected to one end of the driving worm 613;

[0067] In the specific implementation process, the mounting seat 66 and the control groove shell 67 are connected by screws, and a sealing ring is arranged between the inner end of the mounting seat 66 and the control valve stem 65. The rotating shaft 69 is installed through the rotating shaft seat 68. The rotating shaft 69 can rotate on the rotating shaft seat 68, and the driving motor 614 drives the driving worm 613 to rotate, so that the driving worm 613 and the driving worm wheel 612 are meshed, and then the driving worm wheel 612 drives the rotating shaft 69 to rotate, so that the rotating shaft 69 drives the rotating gear 610 to rotate, and the rotating gear 610 is meshed with the control gear 611. The control valve stem 65 is driven to rotate under the action of the control gear 611, and the drive motor 614 is controlled to rotate a certain number of circles according to the set program, so that the control valve stem 65 is rotated to a fixed angle. During the control process, the output torque of the rotating gear is increased after the first-level reduction of the driving worm. The number of teeth and the diameter of the rotating gear are larger than the control gear, so the control valve stem can be rotated quickly. At the same time, the steering torque of the control valve stem when it is under pressure is limited by the driving worm due to the coaxial arrangement of the rotating gear and the driving worm wheel, so as to avoid erroneous rotation.

[0068] The drive motor 614 is connected to a motor controller, and a command transceiver chip is provided on the motor controller. A manual control switch is connected to one side of the motor controller. The cable supplies power to the motor controller and the drive motor 614 while connecting to the transceiver chip. The transceiver chip is connected to the control intranet through the cable to realize the function of a networked control switch.

[0069] From the above, it can be generally known that the large flow height difference boosting system adopts a nitrogen supply system 2 for control buffering that is auxiliaryly arranged between the air boosting system 3 and the water spray supply system 1, which can buffer the pipeline pressure while making the sprayed water easier to form water mist, and is auxiliaryly provided with a pre-boosting system, and adopts a special switch control structure 6, which can quickly realize the switch response of the pipeline. At the same time, the structure adopts a spherical design, which has good adaptability to the pipeline pressure, is more water-saving, and is convenient for later maintenance and improves operability.

[0070] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A large flow height difference boosting system, comprising a water spray supply system, a nitrogen supply system and an air boosting system, wherein the water spray supply system is connected to the nitrogen supply system and the air boosting system respectively, and is characterized in that: One side of the air boosting system is connected to an air supply system; The air boost system comprises a pair of air tanks, the pair of air tanks are connected to the ground through four pairs of pillars, a pair of branch air outlet pipes extend from the pair of air tanks, and the ends of the pair of branch air outlet pipes are connected to the main air outlet pipe; The water spray supply system includes a water tank, which is a horizontal cylindrical carbon steel structure. A water outlet is provided at the bottom of the water tank, and a pair of pressurized air inlets are provided at the top of the water tank. The pair of pressurized air inlets are connected to the main air outlet pipe through a pair of connecting pipes. A pair of switch control structures are provided between the pair of connecting pipes and the pair of supercharged air inlets; The switch control structure includes: a control pipe, a pair of flanges, a control valve slot, a control valve core and a control valve stem; The two ends of the control pipe are respectively connected between the connecting pipe and the supercharged air inlet through a pair of flanges, the middle section of the control pipe is provided with a control valve slot, the control valve slot is provided with a control valve core, the control valve core is closed on the control valve slot, a control valve stem extends from the control valve core and penetrates the control valve slot, and the control valve stem is connected to an electric control switch assembly; The electric control switch assembly includes a mounting seat, a mounting seat is provided on the control valve slot, a control slot shell is connected to the mounting seat, the control slot shell is a rectangular cavity shell, a rotating shaft seat is provided on one side of the control slot shell, a rotating shaft seat is provided on the rotating shaft seat, a rotating gear is sleeved on the rotating shaft, a control gear is sleeved on the end of the control valve stem, the control gear is meshed with the rotating gear, a driving worm gear is sleeved on the rotating shaft, a driving worm is provided on the inner side of the control slot shell, which is meshed with the driving worm gear, and a driving motor is connected to one end of the driving worm gear.

2. The large flow height difference boosting system according to claim 1 is characterized in that: The control valve slot is a spherical cavity structure, the control valve core is located in a spherical valve member matched with the control valve slot, and a straight through groove is opened on the control valve core.

3. The large flow height difference boosting system according to claim 1 is characterized in that: The driving motor is connected to a motor controller, the motor controller is provided with a command transceiver chip, and one side of the motor controller is connected to a manual control switch.

4. The large flow height difference boosting system according to claim 1 is characterized in that: The control tube is a plate with a cylindrical cavity structure and its two ends and a pair of flanges are integrated structures.

5. The large flow height difference boosting system according to claim 1, characterized in that: The air boosting system also includes a pre-boosting tank, which is connected between the water tank and the main air outlet pipe, and the above-mentioned switch control structure is arranged between the pre-boosting tank and the water tank.

6. The large flow height difference boosting system according to claim 1, characterized in that: The nitrogen supply system comprises a gas cylinder group consisting of a plurality of nitrogen buffer gas cylinders connected in parallel, one side of the gas cylinder group is connected to a two-position three-way valve box, and two pairs of nitrogen supply pipes extend from the two-position three-way valve box and are respectively connected to the water spray supply system; The nitrogen supply system also includes a pilot gas control pipe connected to the gas cylinder group and the main gas outlet pipe respectively, and the above-mentioned switch control structure is arranged at the connection between the pilot gas control pipe and the gas cylinder group.

7. The large flow height difference boosting system according to claim 1, characterized in that: The water spray supply system also includes a main water outlet pipe, the water outlet is connected to the main water outlet pipe, the main water outlet pipe is branched into eight branch water outlet pipes, and each of the eight branch water outlet pipes is provided with one of the above-mentioned switch control structures; The four branched water outlet pipes are primary water spray pipes respectively connected to a pair of symmetrically arranged primary water spray modules, and the remaining four branched water outlet pipes are secondary water spray pipes connected to the secondary water spray modules; The first-stage water spray module includes a plurality of core-stage water spray heads, a plurality of canopy water spray heads and a plurality of booster water spray heads, which are respectively mounted on a pair of branch water outlet pipes, and the four first-stage water spray pipes are respectively connected to a nitrogen supply pipe; Therefore, the secondary water spray module includes a plurality of secondary water spray heads respectively connected to the four branch water outlet pipes, and the four secondary water spray pipes are connected to a pair of nitrogen supply pipes.

8. The large flow height difference boosting system according to claim 6, characterized in that: The pilot air control pipe is provided with a pair of connection points on both sides of the main air outlet pipe and is respectively provided with a pair of the above-mentioned switch control structures.

9. The large flow height difference boosting system according to claim 1, characterized in that: The air supply system includes an air compressor unit, which uses an air compressor unit with an exhaust flow rate of 1.9 to 5.0 Nm3 / min and a maximum exhaust pressure of 1.3 MPa to supply air. The air compressor unit is composed of several air supply pipes connected to one side, and the air supply pipes are connected to a pair of air tanks and are provided with a pair of switch control structures.

10. The large flow height difference boosting system according to claim 1, characterized in that: It also includes a measurement and control system, which consists of a PLC main control device, a host computer, PLC development software, host computer configuration software, cables, sensors and the above-mentioned switch control structure.

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