A compensating balance system for a two-phase adaptive underwater transducer excitation device

Abstract

The present application relates to a kind of two-phase adaptive underwater transducer excitation device compensation balance system, belong to marine detection, interference technical field.The compensation balance system includes high-frequency air chamber, low-frequency air chamber and gas-liquid two-phase compensation cavity, simultaneously relates to the shell of underwater transducer excitation device, high-frequency excitation diaphragm, low-frequency excitation diaphragm, liquid-filled rolling seal ring and exciter, by pipeline make the gas cavity in gas-liquid two-phase compensation cavity and two air chambers are communicated and its liquid cavity and liquid-filled rolling seal ring are communicated, can be according to different water depth self-adaptive compensation the gas volume of two air chambers and compensate the leaked liquid in liquid-filled rolling seal ring, to make the inside and outside pressure of excitation diaphragm always keep synchronous change, make liquid-filled rolling seal ring operating boundary condition always keep consistent, to further guarantee the centring of excitation diaphragm work and prolong the working life of liquid-filled rolling seal ring and exciter.

Description

TECHNICAL FIELD

[0001] The present application relates to a two-phase adaptive underwater transducer exciter device compensation balance system, belonging to the field of ocean exploration and interference. BACKGROUND

[0002] A high-performance underwater interference system can controllably radiate a strong seismic broadband sound field to the surrounding water for a long time underwater, effectively interfering with underwater sonar systems and corresponding underwater monitors, so that the data collected by the underwater detection system is greatly distorted. This underwater interference system is also very convenient to apply. It can cruise in important strategic sea areas under the towing of a mother ship, and when a suspicious ship or suspected target is found, it can release a strong physical field into the sea area to interfere with the suspected ship or suspected underwater monitoring target. It can also be used for military purposes.

[0003] The underwater transducer exciter is a kind of high-performance interference device that can radiate a broadband sound field at a set frequency and intensity in the controlled water area. Currently, transducer exciters in various countries in the world mostly use various excitation mechanisms to excite the membrane or shell to produce complex mechanical vibrations to generate a radiated sound field. The most widely used are three types: one is to use an excitation mechanism to hit a hammer to knock the membrane to produce sound, and the excitation mechanism is mostly electrically driven; the second is to use a driving mechanism to drive a rigid radiation surface (piston membrane) to move back and forth to radiate a sound field, and the driving mechanism is mostly electrically driven or electrically driven. The servo type is used to obtain a broadband sound field from infrasound frequency to sound frequency, and the frequency spectrum characteristics and sound pressure are controllable; the third is to use a certain volume and pressure of high-pressure gas to suddenly release energy into water to form a pulsating bubble to radiate a sound field to obtain a low-frequency and infrasound frequency sound field. Among them, the second excitation method has a frequency range of several to one thousand hertz, which can ensure safe, reliable and effective operation, but the core components have poor adaptability to the outside during operation and storage, affecting the service life of the entire device. SUMMARY

[0004] Therefore, the present application provides a two-phase adaptive underwater transducer exciter device compensation balance system, which can adaptively adjust the pressure balance inside and outside the excitation membrane gas chamber at different depths underwater, greatly improving the neutralization of the excitation membrane; automatically adjust the liquid pressure inside the liquid-filled rolling seal ring to keep it synchronized with the external water pressure, thereby prolonging the service life of the liquid-filled rolling seal ring and the exciter.

[0005] The purpose of the present application is achieved by the following technical solutions.

[0006] A two-phase adaptive underwater transducer exciter device compensation balance system, comprising a high-frequency gas chamber, a low-frequency gas chamber, and a gas-liquid two-phase compensation cavity; it also relates to the shell of the underwater transducer exciter device, the high-frequency excitation membrane, the low-frequency excitation membrane, the liquid-filled rolling seal ring, and the exciter.

[0007] The gas-liquid two-phase compensation cavity is a double-cavity structure comprising a gas cavity and a liquid cavity;

[0008] The exciter drives the high-frequency excitation diaphragm and the low-frequency excitation diaphragm to make large displacement reciprocating linear random vibration along the axial direction (referring to the axial direction of the corresponding excitation diaphragm). The boundaries of the two excitation diaphragms (including the high-frequency excitation diaphragm and the low-frequency excitation diaphragm) are connected with the liquid-filled rolling sealing ring, which rolls along with the reciprocating vibration of the two excitation diaphragms. At this time, the connection parts of the liquid-filled rolling sealing ring are required to be sealed to separate the two sides of the radiation from the surrounding environment, so that the two excitation diaphragms produce vibration of the required frequency under the action of the exciter. When the underwater transducer excitation device enters the water, the outer end surface is directly in contact with the water, and a certain pressure difference will be generated between the inner and outer surfaces of the two excitation diaphragms in the direction perpendicular to the end surface of the high-frequency excitation diaphragm and the low-frequency excitation diaphragm. The pressure difference value will change with the change of the working depth, so that the two excitation diaphragms and the liquid-filled rolling sealing ring have a tendency to move inward, which will directly act on the exciter, causing loss of sound radiation and affecting the work of the entire underwater transducer excitation device. At the same time, this pressure difference will also affect the service life of the liquid-filled rolling sealing ring and the exciter. To solve the influence of this changing pressure difference, a closed high-frequency air chamber is designed behind the high-frequency excitation diaphragm, and a closed low-frequency air chamber is designed behind the low-frequency excitation diaphragm. At the same time, a gas-liquid two-phase compensation cavity is arranged inside the front end of the shell of the underwater transducer excitation device, and the gas-liquid two-phase compensation cavity is in contact with the external water. The two air chambers (including the high-frequency air chamber and the low-frequency air chamber) are respectively connected with the gas cavity in the gas-liquid two-phase compensation cavity through pipelines, and the liquid-filled rolling sealing ring is connected with the liquid cavity in the gas-liquid two-phase compensation cavity through pipelines. Due to the compressibility of air and the difference in pressure at different depths, a certain size of air with a certain pressure needs to be filled into the gas cavity of the gas-liquid two-phase compensation cavity before entering the water. When the external hydrostatic pressure changes with the depth, the volume of the gas-liquid two-phase compensation cavity changes accordingly, so that the compensation balance system can adaptively compensate the gas volume of the two air chambers according to different water entry depths, ensuring that the internal and external pressures of the excitation diaphragm are consistent, so that the excitation diaphragm always ensures the neutralization. Because the liquid-filled rolling sealing ring is exposed and easy to damage, causing internal liquid leakage, the liquid cavity of the gas-liquid two-phase compensation cavity also needs to be filled with liquid before work, so that the compensation balance system can adaptively compensate the leaked liquid in the liquid-filled rolling sealing ring according to different water entry depths, so that the working boundary conditions of the liquid-filled rolling sealing ring are always consistent, thereby prolonging the working life of the liquid-filled rolling sealing ring and the exciter.

[0009] The liquid-filled rolling seal ring needs to reciprocate during work, and liquid leakage is prone to occur. To solve this problem, a controller, a liquid shunt and a pressure sensor can also be arranged in the underwater transducer excitation device; the liquid shunt is installed on a pipeline connecting the liquid-filled rolling seal ring and a liquid chamber of the gas-liquid two-phase compensation cavity, and the liquid shunt and the pressure sensor are electrically connected to the controller respectively; the sensor is used to monitor the pressure in the liquid-filled rolling seal ring, and the controller controls the liquid shunt to supplement liquid into the liquid-filled rolling seal ring according to the pressure information fed back by the pressure sensor.

[0010] The liquid-filled rolling seal ring is a main component and moves with the reciprocating motion of the excitation diaphragm plate. The sealing device separates the inside and outside of the shell at the excitation diaphragm plate, and has the effect of static and dynamic sealing. During the working process, the excitation diaphragm plate is not only subjected to a vertical pressure, but also subjected to a downward force perpendicular to the end face of the excitation diaphragm plate under the action of its own weight. This force not only causes shear change of the liquid-filled rolling seal ring, but also acts on the exciter, thereby affecting the service life of the liquid-filled rolling seal ring and the exciter. To solve this problem, heavy water can also be filled into the liquid-filled rolling seal ring. Due to the incompressibility of the liquid, the downward force of the excitation diaphragm plate can be offset. Heavy water has more stable physical properties than ordinary water, and a small amount of heavy water will not pollute and affect the human body and underwater organisms, so it is an ideal working medium for filling liquid in the liquid-filled rolling seal ring.

[0011] A balance adjusting gas cylinder, an attitude sensor and a gas shunt can also be arranged in the underwater transducer excitation device; the gas shunt is installed on a pipeline connecting two gas chambers and a gas chamber of the gas-liquid two-phase compensation cavity, and the balance adjusting gas cylinder is connected to the gas shunt through the pipeline; the gas shunt and the attitude sensor are electrically connected to the controller respectively; the attitude sensor is used to monitor the working attitude of the underwater transducer excitation device; when the head is lowered, the controller controls the gas shunt to inject part of the gas in the balance adjusting gas cylinder into the gas chamber of the gas-liquid two-phase compensation cavity to increase the head buoyancy, so as to adjust the underwater transducer excitation device to be level; when the head is raised, the controller controls the gas shunt to inject part of the gas in the gas chamber of the gas-liquid two-phase compensation cavity into the sealed cabin of the underwater transducer excitation device to reduce the head buoyancy, so as to adjust the underwater transducer excitation device to be level.

[0012] The gas-liquid two-phase compensation cavity is composed of a gas bag and a liquid bag in a double-bag structure, and is designed into a frustum structure according to the arrangement mode that the gas bag is in front and the liquid bag is behind; a ring-shaped convex cavity is designed on the outer circumferential surface of the front part (i.e. the small end of the frustum) of the gas bag in the axial direction to the front as a dead zone preventing cavity of the gas bag cavity; the rear part (i.e. the large end of the frustum) of the gas bag is provided with an air inlet and outlet; the rear part of the liquid bag is provided with a liquid inlet and outlet; the surface of the gas bag and the surface of the liquid bag connected with the shell of the underwater transducer exciter device are designed into thickened surfaces; and a plurality of reinforcing ribs are designed on the surface of the gas bag from the front part to the rear part in the circumferential direction, so that the gas bag and the liquid bag are compressed in the axial direction of the frustum as the main deformation direction under the action of external pressure, and the radial compression is reduced, thereby avoiding the formation of dead zones of the gas bag and the liquid bag, improving the effective volume efficiency, and further improving the self-adaptive compensation range of the compensation balance system.

[0013] The front part of the shell of the underwater transducer exciter device is a water-permeable structure, in order to reduce the influence of the pressure caused by the flow resistance on the gas-liquid two-phase compensation cavity, an oblique water inlet and outlet is arranged on the front part of the shell in the reverse flow direction and deviated to the tail part, so that the influence of the pressure fluctuation caused by the water resistance on the gas-liquid two-phase compensation cavity is reduced during the towing process.

[0014] Advantages:

[0015] (1) The gas-liquid two-phase compensation cavity is connected with the outside and the internal pressure thereof changes synchronously with the external water pressure when the working water depth of the underwater transducer exciter device changes, so that the gas volume of the two gas chambers and the leaked liquid in the liquid-rolling sealing ring can be self-adaptively compensated according to different water depths, the internal and external pressures of the excitation diaphragm are always kept synchronous, the working boundary condition of the liquid-rolling sealing ring is always kept consistent, the working centering of the excitation diaphragm is ensured, and the working life of the liquid-rolling sealing ring and the exciter is prolonged.

[0016] (2) The controller, the pressure sensor and the liquid shunt block can supplement the heavy water when the pressure in the liquid-rolling sealing ring decreases, realize the self-adaptive adjustment of the liquid pressure in the liquid-rolling sealing ring, keep the working boundary condition of the liquid-rolling sealing ring consistent, prolong the working life of the liquid-rolling sealing ring and the exciter, and offset the self-weight of the excitation diaphragm due to the incompressibility of the heavy water, thereby reducing the influence of the pressure difference on the liquid-rolling sealing ring and the exciter, and prolonging the working life of the liquid-rolling sealing ring and the exciter.

[0017] (3) The attitude sensor, gas shunt block, balance adjustment gas cylinder and controller are arranged, so that the gas content in the gas chamber of the gas-liquid compensation cavity is adjusted according to the attitude of the underwater transducer excitation device to adjust the size of the head floating force of the shell, and automatic adjustment of the underwater attitude balance is realized.

[0018] (4) The gas-liquid two-phase compensation cavity body is designed as a frustum structure, and is locally reinforced and thickened, and a dead zone prevention part is designed in the front part of the gas bag, so that the main deformation direction of the cavity body under external pressure can be controlled, the radial movement is limited and the axial movement is promoted, so that the volume gas and liquid dead zone can be reduced under the same cavity volume, the variable volume size is improved, and the adaptive compensation range of the compensation balance system is further improved.

[0019] (5) The inclined water injection and drainage port deviated to the tail part is arranged in the front part of the shell of the underwater transducer excitation device in the reverse flow direction, so that the influence of the pressure fluctuation caused by water resistance on the gas-liquid two-phase compensation cavity body can be effectively reduced during towing. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the compensation balance system described in the embodiment.

[0021] Figure 2 It is a structural schematic diagram of the gas-liquid two-phase compensation cavity body.

[0022] Wherein, 1-shell, 2-gas-liquid two-phase compensation cavity, 3-water injection and drainage port, 4-liquid filling rolling seal ring, 5-high-frequency air chamber, 6-high-frequency excitation diaphragm, 7-controller, 8-balance adjustment gas cylinder, 9-liquid shunt block, 10-gas shunt block, 11-exciter, 12-low-frequency excitation diaphragm, 13-low-frequency air chamber, 14-attitude sensor, 15-gas bag, 16-liquid bag, 17-liquid bag thickening surface, 18-liquid inlet and outlet, 19-gas inlet and outlet, 20-stiffener, 21-dead zone prevention part, 22-gas bag thickening surface. DETAILED DESCRIPTION

[0023] The application will be further described below in combination with the drawings and specific embodiments. In the description of the application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the application.

[0024] Example 1

[0025] As shown in 1, a two-phase adaptive underwater transducer excitation device compensation balance system, including high frequency air chamber 5, low frequency air chamber 13, gas-liquid two-phase compensation cavity 2, controller 7, balance adjustment cylinder 8, liquid shunt 9, gas shunt 10, pressure sensor and attitude sensor 14; also relates to the shell 1 of underwater transducer excitation device, high frequency excitation diaphragm 6, low frequency excitation diaphragm 12, liquid filled rolling seal ring 4 and exciter 11;

[0026] Because the head of the shell 1 is a water permeable structure, in order to reduce the influence of the pressure caused by the incident flow resistance on the gas-liquid two-phase compensation cavity 2, the water injection and drainage port 3 is opened in the reverse flow direction at the head of the shell 1 and deviated to the tail (as shown in Figure 1 In addition to the head of the shell 1 being a water permeable structure, the other parts of the shell 1 are sealed cabins, and accordingly, all the above-mentioned components except the gas-liquid two-phase compensation cavity 2 are installed in the sealed cabins of the shell 1;

[0027] As shown in Figure 2 , the gas-liquid two-phase compensation cavity 2 is a double-capsule structure composed of a gas capsule 15 and a liquid capsule 16, and is designed as a frustum structure according to the arrangement mode of the gas capsule 15 in front and the liquid capsule 16 behind. The outer circular surface of the front part (i.e. the small end of the frustum) of the gas capsule 15 is designed with a ring-shaped convex cavity as a dead zone 21 of the gas capsule cavity in the axial direction forward. The rear part (i.e. the large end of the frustum) of the gas capsule 15 is provided with an air inlet and outlet 19, and the rear part of the liquid capsule 16 is provided with a liquid inlet and outlet 18. The surface of the gas capsule 15 and the surface of the liquid capsule 16 connected with the shell 1 are designed as thickened surfaces (i.e. the gas capsule thickened surface 22 and the liquid capsule thickened surface 17 in Figure 2 ). A plurality of reinforcing ribs 20 are designed on the surface of the gas capsule 15 from the front part to the rear part in the circumferential direction, so that under the action of external pressure, the main deformation direction of the gas capsule 15 and the liquid capsule 16 is axial compression along the frustum, and the radial compression is reduced, thereby avoiding the formation of dead zones of the gas capsule 15 and the liquid capsule 16, improving the effective volume efficiency, and further improving the adaptive compensation range of the compensation balance system;

[0028] The underwater transducer excitation device uses the exciter 11 to excite the mechanical vibration of the excitation diaphragm plate relative to the shell 1 to generate a radiated sound field. The high-frequency excitation diaphragm plate 6 and the low-frequency excitation diaphragm plate 12 are connected between the liquid-filled rolling seal ring 4 and the shell 1 through a flexible sealing assembly, so that the high-frequency excitation diaphragm plate 6 and the low-frequency excitation diaphragm plate 12 produce the required frequency vibration under the action of the exciter 11. When the working depth of the underwater transducer excitation device changes, the outer end surface directly contacts the water, and a positive pressure change occurs in the direction perpendicular to the end surface of the high-frequency excitation diaphragm plate 6 and the low-frequency excitation diaphragm plate 12, which makes the two excitation diaphragm plates and the liquid-filled rolling seal ring 4 have a tendency to move inward, and this tendency directly acts on the exciter 11, which will cause loss of sound radiation and affect the work of the entire underwater transducer excitation device. To solve this problem, a closed high-frequency air chamber 5 is designed behind the high-frequency excitation diaphragm plate 6 (i.e. below the excitation diaphragm plate), and a closed low-frequency air chamber 13 is designed behind the low-frequency excitation diaphragm plate 12 (i.e. above the excitation diaphragm plate), and the two air chambers are respectively connected with the gas chamber in the gas-liquid two-phase compensation cavity 2 through pipelines, and the liquid-filled rolling seal ring 4 is connected with the liquid chamber in the gas-liquid two-phase compensation cavity 2 through pipelines, as shown in Figure 1 Due to the compressibility of air and the difference in pressure at different depths, a certain size of air with a certain pressure needs to be filled into the gas chamber in the gas-liquid two-phase compensation cavity 2 before working, and liquid needs to be filled into the liquid chamber. When the working depth of the underwater transducer excitation device changes, the pressure on the outer surface of the high-frequency excitation diaphragm plate 6, the low-frequency excitation diaphragm plate 12 and the liquid-filled rolling seal ring 4 changes accordingly, and the gas-liquid two-phase compensation cavity 2 is also in communication with the outside world and its internal pressure also changes synchronously with the external water pressure, so that the compensation balance system can adaptively compensate the gas volume of the two air chambers and compensate the leaked liquid in the liquid-filled rolling seal ring according to different water depths, so that the internal and external pressures of the excitation diaphragm plate are consistent and the working boundary conditions of the liquid-filled rolling seal ring are always consistent, thereby ensuring the centering of the excitation diaphragm plate and prolonging the service life of the liquid-filled rolling seal ring and the exciter.

[0029] The liquid-filled rolling seal ring 4 moves with the reciprocating motion of the excitation diaphragm plate. The sealing device separates the inside and outside of the shell 1 at the excitation diaphragm plate, and has the effect of static and dynamic sealing. In the working process, the excitation diaphragm plate not only bears the vertical pressure, but also bears the weight of the excitation diaphragm plate. There is a downward force on the end face perpendicular to the excitation diaphragm plate. This force not only causes the shear change of the liquid-filled rolling seal ring 4, but also acts on the exciter 11, affecting the service life of the two. In order to solve this problem, heavy water is filled in the liquid-filled rolling seal ring 4. Due to the incompressibility of the liquid, the weight of the excitation diaphragm plate can be offset, thereby reducing the influence of the pressure difference on the liquid-filled rolling seal ring 4 and the exciter 11, and prolonging the service life of the liquid-filled rolling seal ring 4 and the exciter 11. In addition, the liquid-filled rolling seal ring 4 needs to move reciprocally during work, which is easy to cause liquid leakage. At this time, a liquid flow block 9 is installed on the pipeline connecting the liquid-filled rolling seal ring 4 and the liquid chamber of the gas-liquid two-phase compensation cavity 2. The pressure sensor and the liquid flow block 9 are electrically connected to the controller 7 respectively. The pressure sensor is used to monitor the pressure in the liquid-filled rolling seal ring 4 and feed back the pressure information to the controller 7, as shown in Figure 1 When the pressure in the liquid-filled rolling seal ring 4 decreases, the controller 7 supplements heavy water to the liquid-filled rolling seal ring 4 by controlling the liquid flow block 9, so that the working boundary conditions of the liquid-filled rolling seal ring 4 are always consistent, thereby prolonging the service life of the liquid-filled rolling seal ring 4 and the exciter 11.

[0030] In addition, a gas flow block 10 is installed on the pipeline connecting the two gas chambers and the gas chamber of the gas-liquid two-phase compensation cavity 2. The balance adjusting gas cylinder 8 is connected to the gas flow block 10 through the pipeline. The gas flow block 10 and the attitude sensor 14 are electrically connected to the controller 7 respectively. The attitude sensor 14 is used to monitor the working attitude of the underwater transducer excitation device. The balance adjusting gas cylinder 8 stores high-pressure gas, as shown in Figure 1 When the attitude sensor 14 monitors that the underwater transducer excitation device is lowered, the controller 7 controls the gas flow block 10 to inject part of the gas in the balance adjusting gas cylinder 8 into the gas chamber of the gas-liquid two-phase compensation cavity 2, so as to increase the buoyancy of the head and adjust the underwater transducer excitation device. If it is monitored that the underwater transducer excitation device is raised, the controller 7 controls the gas flow block 10 to inject part of the gas in the gas chamber of the gas-liquid two-phase compensation cavity 2 into the sealed cabin of the shell 1, so as to reduce the buoyancy of the head and adjust the underwater transducer excitation device.

[0031] In order to realize effective buffering, all connecting pipes in the gas circuit and the liquid circuit are made of standard hoses to improve the vibration resistance, reliability and maintainability of the system. Since the gas-liquid two-phase compensation cavity 2 is a moving part and is in a dynamic expansion state during the working process, in order to prevent cracking during long-term storage and fatigue fracture during the working process, the rubber material with the properties of oil resistance, seawater resistance, weather resistance, ozone aging resistance and the like is selected in the material, and the male and female mold heating and pressurizing forming mode is selected in the processing technology, and a high-temperature resistant cloth layer is laid between the two layers of raw rubber.

[0032] To sum up, the above is only a preferred embodiment of the present application, not for limiting the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dual phase adaptive underwater transducer exciter device compensation balancing system, characterized by: The shell includes a high-frequency air chamber, a low-frequency air chamber, a gas-liquid two-phase compensation cavity, a shell of an underwater transducer excitation device, a high-frequency excitation diaphragm, a low-frequency excitation diaphragm, a liquid-filled rolling seal ring, and an exciter; The gas-liquid two-phase compensation cavity is a double-cavity structure including a gas cavity and a liquid cavity, and the gas cavity is filled with part of gas and the liquid cavity is filled with part of liquid. A closed high-frequency air chamber is designed behind the high-frequency excitation diaphragm, a closed low-frequency air chamber is designed behind the low-frequency excitation diaphragm, and a gas-liquid two-phase compensation cavity is arranged inside the front end of the shell of the underwater transducer excitation device and is in contact with water outside, the high-frequency air chamber and the low-frequency air chamber are respectively connected with the gas cavity in the gas-liquid two-phase compensation cavity through pipelines, and the liquid-filled rolling seal ring is connected with the liquid cavity in the gas-liquid two-phase compensation cavity through a pipeline. Except that the head of the shell is a water-permeable structure, the other part of the shell is a sealed cabin. The high-frequency excitation diaphragm and the low-frequency excitation diaphragm are connected with the shell through a flexible sealing assembly via the liquid-filled rolling seal ring. The compensation balance system further includes a controller, a liquid shunt, a pressure sensor, a balance adjusting gas cylinder, an attitude sensor, and a gas shunt. The liquid shunt is arranged on a pipeline connecting the liquid-filled rolling seal ring and the liquid cavity of the gas-liquid two-phase compensation cavity, the gas shunt is arranged on a pipeline connecting the two air chambers and the gas cavity of the gas-liquid two-phase compensation cavity, the balance adjusting gas cylinder is connected with the gas shunt through a pipeline, the liquid shunt, the pressure sensor, the controller, the balance adjusting gas cylinder, and the attitude sensor are arranged inside the shell of the underwater transducer excitation device, the liquid shunt, the pressure sensor, the gas shunt, and the attitude sensor are electrically connected with the controller, the pressure sensor is used for monitoring the pressure in the liquid-filled rolling seal ring and feeding back the monitored pressure information to the controller, the attitude sensor is used for monitoring the working attitude of the underwater transducer excitation device and feeding back the detected attitude information to the controller, the controller controls the liquid shunt to supplement liquid into the liquid-filled rolling seal ring according to the pressure information fed back by the pressure sensor, and the controller controls the gas shunt to inject part of gas in the balance adjusting gas cylinder into the gas cavity of the gas-liquid two-phase compensation cavity or inject part of gas in the gas cavity of the gas-liquid two-phase compensation cavity into the sealed cabin of the underwater transducer excitation device according to the attitude information fed back by the attitude sensor. The gas-liquid two-phase compensation cavity is a double-capsule structure composed of a gas capsule and a liquid capsule, and is designed into a frustum structure according to the arrangement mode that the gas capsule is in front and the liquid capsule is behind, a ring-shaped convex cavity is designed on the outer circumferential surface of the front part of the gas capsule in the axial direction, which is used as a dead zone preventing part of the gas capsule cavity, the rear part of the gas capsule is provided with a gas inlet and outlet, the rear part of the liquid capsule is provided with a liquid inlet and outlet, the surface of the gas capsule and the surface of the liquid capsule connected with the shell of the underwater transducer excitation device are designed as thickened surfaces, and a plurality of reinforcing ribs are designed on the surface of the gas capsule along the circumferential direction from the front part to the rear part.

2. The compensation balance system for a dual-phase self-adaptive underwater transducer excitation device according to claim 1, characterized in that: The liquid filled in the liquid-filled rolling seal ring is heavy water.

3. The compensation balance system for a dual-phase self-adaptive underwater transducer excitation device according to claim 1, characterized in that: A slanting water injection and discharge port is arranged on the front part of the shell of the underwater transducer excitation device in the reverse flow direction and is deviated to the tail part.

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