Water supply system of water ramjet for injecting water along with combustion surface

Abstract

The invention relates to a water ramjet water supply system injecting water along with a combustion surface, which comprises a water ramjet shell, a flow guide hose, an atomizing nozzle, a control connecting rod, a control motor and a propellant, the propellant is filled in the water ramjet shell, and the atomizing nozzle is spherically connected with the water ramjet shell. The atomizing nozzle is arranged in the water ramjet shell, the connecting contact face is lubricated, the rotational freedom degree of the atomizing nozzle is kept while the nozzle is fixed, a spherical connector is formed in the position, located in front of propellant, of the water ramjet shell, a spherical positioning pin is arranged in the middle of the atomizing nozzle, and the size of the spherical positioning pin is equal to that of the spherical connector of the engine shell. Therefore, the sealing performance of the engine shell is ensured. The effect that atomized water is always close to the combustion surface of the grain is achieved, and the combustion efficiency, flame stability, heat-work conversion efficiency and other performance of an engine are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of grain-type water ramjet engines, and particularly relates to a water supply system for a water ramjet engine that injects water following the burning surface. Background Art

[0002] As a new type of water reaction high-energy density propulsion system, the water ramjet engine has unique advantages such as high performance, simple structure, safety and reliability, and is the best choice for ultra-high-speed underwater propulsion systems. It uses the water in the external environment of the vehicle as an oxidant and working medium, reacts with the metal fuel carried by the engine itself, and the generated heat enters the engine to heat and evaporate the unreacted water, and expands and does work in the form of high-pressure steam, thereby driving the movement of the vehicle body. The water supply system is an important component of the water ramjet engine, and the structure of the water inlet pipe will directly determine the water inlet flow rate and pipeline pressure loss, thereby affecting the combustion efficiency of the propellant. Usually, the water ramjet engine adopts a two-stage water inlet structure to achieve staged combustion. However, since the fixed nozzle is used at the water outlet end of the pipeline, during the combustion process, as the burning surface of the grain recedes, the distance between the two continuously changes, and the atomization direction cannot be adjusted accordingly, so its combustion efficiency, flame stability, thermal work conversion efficiency, etc. will inevitably be affected. Therefore, it is necessary to improve the water inlet system of the water ramjet engine. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention aims to provide a water supply system for a water ramjet engine that injects water following the burning surface, realizing the effect that the atomized water is always close to the burning surface of the grain, and improving the performance of the engine such as combustion efficiency, flame stability, and thermal work conversion efficiency.

[0004] The present invention is realized through the following technical solutions.

[0005] A water supply system for a water ramjet engine that injects water following the burning surface includes a water ramjet engine housing, a diversion hose, an atomizing nozzle, a control link, a control motor, and a propellant. The propellant is loaded in the water ramjet engine housing. The atomizing nozzle is spherically connected to the water ramjet engine housing, and the connection contact surface is lubricated to retain its rotational freedom while fixing the nozzle. The water ramjet engine housing has a spherical interface at the position in front of the propellant. A spherical positioning pin is provided in the middle of the atomizing nozzle, and the size of the spherical positioning pin is equal to the size of the spherical interface of the engine housing, so that the two just fit together, ensuring the sealing performance of the engine housing.

[0006] The diversion hose is connected to the water inlet end of the atomizing nozzle. The water outlet end of the atomizing nozzle is located inside the water ramjet engine housing. The control motor is fixed on the outside of the water ramjet engine housing. The control motor is connected to the upper part of the atomizing nozzle through a control connecting rod. The control connecting rod is used to transmit the torque of the control motor and control the atomizing nozzle to rotate only in the upstream and downstream directions of the engine, so as to achieve precise water injection. The diversion hose is made of a soft material and has sufficient length, and can freely flex and stretch with the rotation of the atomizing nozzle to ensure the smoothness of the water flow channel.

[0007] Further, the control motor is powered by a battery and is controlled by connecting an optical encoder, and is installed outside the engine housing to operate independently.

[0008] Further, a transmission arm is above the control connecting rod and a sleeve is below. The transmission arm surrounds the upper part of the atomizing nozzle, and the sleeve meshes with the rotating gear of the control motor to transmit the torque to the atomizing nozzle.

[0009] Further, the control motor is welded and fixed to the water ramjet engine housing through two cylindrical iron blocks, effectively isolating the high temperature generated during the operation of the engine and ensuring the stable operation of the motor assembly.

[0010] Further, the control motor sets the motor speed by encoding according to the combustion speed of the propellant (i.e., the burning surface recession speed). Starting from the ignition moment of the engine, the atomizing nozzle initially sprays perpendicular to the water ramjet engine housing, and then gradually rotates in the upstream direction of the water ramjet engine, so that the atomized water is always close to the burning surface of the grain.

[0011] Working principle:

[0012] After the water ramjet engine is ignited, the propellant burns to generate a burning surface. As the propellant continues to burn, the burning surface will continuously retreat in the upstream direction of the engine. The water outlet end of the atomizing nozzle is placed inside the engine, and the water inlet end is connected to the diversion hose. The diversion hose is connected to the water inlet pipe to form a complete water flow channel. The water ramjet engine housing is provided with a spherical interface. Correspondingly, a spherical positioning pin is provided in the middle section of the atomizing nozzle, which can be fitted into the spherical interface of the engine housing to realize the fixing and rotating functions of the nozzle. The control connecting rod is installed above the spherical positioning pin and is connected to the control motor for rotation control.

[0013] The atomizing nozzle is spherically connected to the water ramjet engine housing. While ensuring the sealing performance, the nozzle can rotate at a certain angle. The control motor includes a battery and an encoder assembly and can be installed outside the engine housing to operate independently. According to the combustion speed of the propellant (i.e., the burning surface recession speed), the rotation speed of the control motor is set by the encoder encoding. Starting from the ignition moment of the engine, the atomizing nozzle initially sprays perpendicular to the engine housing and then gradually rotates in the upstream direction of the engine, so as to ensure that the atomized water is always close to the propellant burning surface and improve its combustion efficiency.

[0014] Compared with the prior art, the advantages of the present invention are as follows: By improving the water supply method of the traditional water ramjet engine, the effect that the atomized water is always close to the propellant burning surface is achieved. The problem that the atomizing direction is fixed in the traditional water supply method and the distance between the two increases continuously with the recession of the burning surface, resulting in the inability of the atomized water to be fully mixed with the high-temperature gas, is solved, and the performance such as the combustion efficiency, flame stability, and thermal power conversion efficiency of the engine is improved. Brief Description of the Drawings

[0015] Figure 1 is the positive three-axis axonometric drawing of the overall structure of the present invention;

[0016] Figure 2 is the partial schematic diagram of the present invention;

[0017] Figure 3 is Figure 1 the partial cross-sectional schematic diagram of the structure;

[0018] Figure 4 is the assembly schematic diagram of the atomizing nozzle, control link, control motor, and diversion hose;

[0019] In the figure: 1. Water ramjet engine housing, 2. Diversion hose, 3. Atomizing nozzle, 4. Control link, 5. Control motor, 6. Propellant. Detailed Embodiment

[0020] The present invention will be further described below in conjunction with the drawings and specific embodiments, but it is not limited to the present invention.

[0021] As Figures 1 to 4As shown in the figure, a water supply system for a water ramjet engine that follows the injection of burning noodles includes a water ramjet engine housing 1, a diversion hose 2, an atomizing nozzle 3, a control link 4, a control motor 5, and a propellant 6. The propellant 6 is loaded into the water ramjet engine housing 1. The atomizing nozzle 3 is spherically connected to the water ramjet engine housing 1, and the connection contact surface is lubricated. While fixing the nozzle, its rotational freedom is retained. The water ramjet engine housing 1 has a spherical interface at a position in front of the propellant 6. A spherical positioning pin is provided at the middle position of the atomizing nozzle. The size of the spherical positioning pin is equal to the size of the spherical interface of the engine housing, so that the two just fit together, ensuring the sealing of the engine housing;

[0022] The diversion hose 2 is connected to the water inlet end of the atomizing nozzle 3. The water outlet end of the atomizing nozzle 3 is located inside the water ramjet engine housing 1. The control motor 5 is fixed on the water ramjet engine housing 1 outside the water ramjet engine housing 1. The control motor 5 is connected to the upper part of the atomizing nozzle 3 through the control link 4. The control link 4 is used to transmit the torque of the control motor 5 and control the atomizing nozzle 3 to rotate only in the upstream and downstream directions of the engine, realizing precise water injection. The diversion hose 2 is made of a soft material and has a sufficient length, and can freely flex and stretch with the rotation of the atomizing nozzle 3 to ensure the smoothness of the water flow channel.

[0023] Further, the control motor 5 is powered by a battery, connected to a photoelectric encoder for control, and is installed outside the engine housing to operate independently.

[0024] Further, above the control link 4 is a transmission arm, and below is a sleeve. The transmission arm surrounds the upper part of the atomizing nozzle 3, and the sleeve meshes with the rotating gear of the control motor 5 to transmit the torque to the atomizing nozzle.

[0025] Further, the control motor 5 is welded and fixed to the water ramjet engine housing 1 through two cylindrical iron blocks, effectively isolating the high temperature generated during the operation of the engine and ensuring the stable operation of the motor assembly.

[0026] Further, the control motor 5 sets the motor speed according to the combustion speed of the propellant 6, that is, the burning surface retreat speed, by photoelectric encoder coding. Starting from the ignition moment of the engine, the atomizing nozzle 3 initially sprays perpendicular to the water ramjet engine housing 1, and then gradually rotates in the upstream direction of the water ramjet engine, realizing that the atomized water is always close to the burning surface of the grain.

[0027] Working principle:

[0028] As Figure 3 shown, when the water ramjet engine starts to work, the ignition charge ignites the propellant 6. At this time, seawater in the external environment enters the diversion hose 2 through the water inlet pipe and is atomized and sprayed into the combustion chamber by the atomizing nozzle 3 to react with the high-temperature gas generated by the propellant.

[0029] After the water ramjet engine is ignited, the propellant 6 burns to generate a burning surface. As the propellant 6 continues to burn, the burning surface will continuously retreat towards the upstream direction of the engine. The water ramjet engine housing 1 is provided with a spherical interface. A spherical positioning pin is provided in the middle section of the atomizing nozzle 3 and is fitted into the spherical interface of the engine housing for fixing and rotating the nozzle. A transmission arm is arranged above the control link 4, and a sleeve is arranged below. The transmission arm surrounds the upper part of the atomizing nozzle 3 for transmitting the atomizing nozzle 3. The sleeve meshes with the rotating gear on the control motor 5, and the rotation of the rotating gear drives the sleeve to rotate. Then, the torque is transmitted to the atomizing nozzle 3 through the transmission arm on the control link 4 to realize the rotation control of the atomizing nozzle 3.

[0030] The atomizing nozzle 3 is spherically connected to the water ramjet engine housing 1, and lubrication treatment is carried out on the contact surface. While ensuring the sealing performance, the nozzle can rotate at a certain angle; the control motor 5 includes a battery and an encoder assembly and can be installed outside the engine housing to operate independently. According to the combustion speed of the propellant (i.e., the retreat speed of the burning surface), the rotation speed of the control motor 5 is set by encoder coding. Starting from the ignition moment of the engine, the atomizing nozzle 3 initially sprays perpendicular to the engine housing and then gradually rotates towards the upstream direction of the engine, realizing that the atomized water is always close to the burning surface of the grain.

[0031] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A water supply system for a water ramjet engine that follows the injection of burning noodles, characterized in that, It includes a water ramjet engine housing (1), a diversion hose (2), an atomizing nozzle (3), a control link (4), a control motor (5), and a propellant (6). The propellant (6) is loaded into the water ramjet engine housing (1). The atomizing nozzle (3) is spherically connected to the water ramjet engine housing (1). The water ramjet engine housing (1) has a spherical interface at a position in front of the propellant (6). A spherical positioning pin is provided at the middle position of the atomizing nozzle. The size of the spherical positioning pin is equal to the size of the spherical interface of the engine housing, so that the two just fit together. The diversion hose (2) is connected to the water inlet end of the atomizing nozzle (3). The water outlet end of the atomizing nozzle (3) is located inside the water ramjet engine housing (1). The control motor (5) is fixed on the water ramjet engine housing (1) outside the water ramjet engine housing (1). The control motor (5) is connected to the upper part of the atomizing nozzle (3) through the control link (4). The control link (4) is used to transmit the torque of the control motor (5) and control the atomizing nozzle (3) to rotate only in the upstream and downstream directions of the engine.

2. The water supply system for a water ramjet engine that follows the injection of burning noodles according to claim 1, wherein The control motor (5) is powered by a battery, controlled by connecting a photoelectric encoder, and operates independently outside the engine housing.

3. The water supply system of a water ramjet engine following the injection of water into the burning noodles according to claim 1, characterized in that, The control motor (5) is welded and fixed to the water ramjet engine housing (1) through two cylindrical iron blocks.

4. The water supply system of a water ramjet engine following the injection of burning noodles according to claim 2, characterized in that, The control motor (5) sets the motor speed according to the combustion speed of the propellant (6) encoded by the photoelectric encoder. Starting from the ignition moment of the engine, the atomizing nozzle (3) initially sprays perpendicular to the water ramjet engine housing (1), and then gradually rotates in the upstream direction of the water ramjet engine, realizing that the atomized water is always close to the burning surface of the grain.

5. The water supply system of a water ramjet engine following the injection of water into burning noodles according to claim 1, characterized in that, Above the control link (4) is a transmission arm, and below is a sleeve. The transmission arm surrounds the upper part of the atomizing nozzle, and the sleeve meshes with the rotating gear of the control motor (5) to transmit the torque to the atomizing nozzle.

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