Electrode water seepage prevention watertight structure for underwater strong sound expelling device

Abstract

The utility model relates to a watertight structure for preventing water seepage of an electrode for an underwater strong sound expelling device, which is characterized in that a watertight cylinder is arranged in an electronic watertight compartment, and a watertight end cover is arranged at the top of the watertight cylinder; the cable penetrates through the watertight end cover, and the electrodes, the outer layer of the cable and the watertight end cover are subjected to rubber vulcanization treatment; two binding posts are symmetrically arranged at the bottom of the watertight cylinder, a negative lead and a positive lead of a cable are connected with a circuit part through inner binding posts and outer binding posts of the binding posts respectively, and the positive lead and the negative lead are pressed into the binding posts through hydraulic tongs and then are fixed through locking nuts; water inlet detection leads are spirally wound on the positive lead and the negative lead; and when water is detected, the electrodes stop discharging. According to the structure, the problem of water seepage after the electrodes are discharged for multiple times is solved, the electrodes are very convenient to disassemble and assemble, the whole watertight cylinder does not need to be disassembled and assembled, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the field of underwater strong sound expulsion in marine engineering, in particular to a watertight structure for preventing water seepage of electrodes used in underwater strong sound expulsion devices. Background Art

[0002] In underwater sound repellent devices, electrodes are used to generate a strong sound in the seawater to repel frogmen. This sound is achieved by applying an ultra-high voltage to the positive and negative electrodes, causing a momentary discharge.

[0003] At present, the insulation of the positive and negative poles of the electrode is vulcanized with polyurethane rubber or chloroprene rubber. The vibration generated by multiple discharges will deteriorate the adhesion between the positive and negative poles of the electrode and the rubber, causing seawater to gradually penetrate from the positive and negative poles into the cable and even the equipment, thereby damaging the equipment. Utility Model Content

[0004] The purpose of the utility model is to solve the problem of water seepage after multiple discharges of electrodes and to provide a watertight structure for preventing water seepage of electrodes for underwater strong sound driving device.

[0005] The technical solution of the utility model is:

[0006] A watertight structure for preventing water leakage from electrodes used in an underwater strong sound driving device, the underwater strong sound driving device comprising an electronic watertight compartment 10 and an electrode 9, a circuit portion being provided in the electronic watertight compartment 10, the circuit portion being connected to the electrode 9 via a cable 8, a watertight cylinder 1 being provided in the electronic watertight compartment 10, a watertight end cap 2 being provided on the top of the watertight cylinder 1, the watertight end cap 2 being used to seal the watertight cylinder 1 and the electronic watertight compartment 10 to form an integral watertight structure; the cable 8 passing through the watertight end cap 2, the electrode 9 and the outer layer of the cable 8, as well as the outer layer of the cable 8 and the watertight end cap 2, are both vulcanized with rubber to maintain a watertight state; in the watertight cylinder 1 Two terminal blocks 4 that pass through the shell of the watertight cylinder 1 are symmetrically provided at the bottom. The terminal blocks 4 are located at the inner and outer ends of the watertight cylinder 1 and are respectively provided with internal terminal blocks 51 and external terminal blocks 52. After the cable 8 enters the watertight end cover 2, the negative lead 11 and the positive lead 13 pass through the two terminal blocks 4 and the internal terminal blocks 51 and the external terminal blocks 52 respectively to realize the electrical connection between the circuit part and the electrode 9, which is used to improve the reliability of the connection under the action of high voltage; the internal terminal blocks 51 and the external terminal blocks 52 are low-temperature terminal blocks, and the negative lead 11 and the positive lead 13 are pressed into the terminal blocks by hydraulic pliers and then fixed by locking nuts 6.

[0007] Furthermore, in order to prevent water from seeping into the negative lead 11 or the positive lead 13 from entering the electronic watertight compartment 10 through the terminal, a groove is provided on the terminal and an O-ring is placed thereon to ensure a watertight effect.

[0008] Furthermore, in order to monitor whether there is water leakage on the negative lead 11 and the positive lead 13, a water inlet detection wire 12 is spirally wrapped around the negative lead 11 and the positive lead 13. When the water inlet detection wire 12 detects water, the control electrode 9 stops discharging in the water, thereby avoiding the terminal 4 from being punctured under high voltage.

[0009] Furthermore, an airtight valve 16 is fixed to the watertight end cap 2 to facilitate the addition of carbon dioxide gas into the watertight cylinder 1. Calcium oxide powder is evenly sprinkled on the bottom of the watertight cylinder 1 and on the negative and positive electrode leads 11 and 13. The interior of the watertight cylinder 1 is evacuated and then filled with carbon dioxide gas to a pressure of 0.05 MPa. When water seeps into the watertight cylinder 1, the calcium oxide powder undergoes the following chemical reaction:

[0010] Ca0+H2O=Ca(OH)2

[0011] Ca(OH)2+CO2=CaCO3+H2O

[0012] At this time, the internal air pressure will drop. When the pressure drops by 5%, the air pressure detector 15 located in the watertight cylinder 1 will transmit information to the watertight electronic cabin to prohibit the discharge operation of the electrode.

[0013] Preferably, the watertight cylinder 1 and the watertight end cap 2 are both made of transparent organic glass, which can ensure good insulation between the watertight cylinder 1, the watertight end cap 2 and the terminal 4, and facilitate regular observation and maintenance.

[0014] Preferably, the terminal 4 is made of TC4 titanium alloy, which can provide better corrosion resistance.

[0015] Preferably, the watertight end cap 2 is secured to the watertight cylinder 1 with a locking nut 6. If water ingress is detected in the watertight cylinder 1, the watertight end cap 2 and electrodes 9 can be quickly removed for replacement. This eliminates the need to disassemble the entire electronic watertight compartment 10, effectively reducing the difficulty and time required for replacement.

[0016] The beneficial effects of the utility model are:

[0017] (1) The structure of the utility model solves the problem of water seepage after multiple discharges of the electrode;

[0018] (2) The utility model uses a water inlet detection wire to detect whether water has entered the electrode and an air pressure detector to test whether a chemical reaction has occurred inside the electrode, resulting in a decrease in air pressure, to ensure that the electrode is in an absolutely dry environment before discharge, thereby ensuring overall working safety and avoiding damage to the equipment.

[0019] (3) The electrode of the present invention is very convenient to disassemble and assemble, and there is no need to disassemble the entire watertight cylinder, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 Schematic diagram of the structure of the end cap connecting the electrode.

[0022] In the figure: 1-watertight cylinder; 2-watertight end cover; 4-terminal; 51-internal terminal, 52-external terminal; 6-locking nut; 8-cable; 9-electrode; 10-electronic watertight compartment; 11-negative lead; 12-water inlet detection wire; 13-positive wire; 15-air pressure detection gauge; 16-airtight valve. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] See also Figure 1 and Figure 2 A watertight structure for preventing water leakage of electrodes for an underwater strong sound driving device, the underwater strong sound driving device comprising an electronic watertight compartment 10 and an electrode 9, a circuit portion being provided in the electronic watertight compartment 10, the circuit portion being connected to the electrode 9 via a cable 8, a watertight cylinder 1 being provided in the electronic watertight compartment 10, a watertight end cap 2 being provided on the top of the watertight cylinder 1, the watertight end cap 2 being used to seal the watertight cylinder 1 and the electronic watertight compartment 10 to form an integral watertight structure; the cable 8 passing through the watertight end cap 2, the electrode 9 and the outer layer of the cable 8, as well as the outer layer of the cable 8 and the watertight end cap 2, are both vulcanized with rubber to maintain a watertight state; in the watertight cylinder Two terminal blocks 4 are symmetrically provided at the bottom of the watertight cylinder 1, extending through the shell. The terminal blocks 4 are located at the inner and outer ends of the watertight cylinder 1, respectively, and are provided with internal and external terminals 51 and 52. After the cable 8 enters the watertight end cap 2, the negative lead 11 and the positive lead 13 pass through the two terminal blocks 4 and, through the internal and external terminals 51 and 52, respectively, to achieve electrical connection between the circuit portion and the electrode 9, thereby improving the reliability of the connection under the action of high voltage. The internal and external terminals 51 and 52 are low-temperature terminals, and the negative lead 11 and the positive lead 13 are pressed into the terminals by hydraulic pliers and then secured by lock nuts 6.

[0025] In order to prevent water from seeping into the negative lead 11 or the positive lead 13 and entering the electronic watertight compartment 10 through the terminal, a groove is provided on the terminal and an O-ring is placed thereon to ensure a watertight effect.

[0026] In order to monitor whether there is water leakage on the negative lead 11 and the positive lead 13, a water inlet detection wire 12 is spirally wrapped around the negative lead 11 and the positive lead 13. When the water inlet detection wire 12 detects water, the control electrode 9 stops discharging in the water, thereby preventing the terminal 4 from being punctured under high voltage.

[0027] An airtight valve 16 is fixed to the watertight end cap 2 to facilitate the addition of carbon dioxide gas into the watertight cylinder 1. Calcium oxide powder is evenly sprinkled on the bottom of the watertight cylinder 1 and on the negative and positive electrode leads 11 and 13. The interior of the watertight cylinder 1 is evacuated and then filled with carbon dioxide gas to a pressure of 0.05 MPa. When water seeps into the watertight cylinder 1, the calcium oxide powder undergoes the following chemical reaction:

[0028] Ca0+H2O=Ca(OH)2

[0029] Ca(OH)2+CO2=CaCO3+H2O

[0030] At this time, the internal air pressure will drop. When the pressure drops by 5%, the air pressure detector 15 located in the watertight cylinder 1 will transmit information to the watertight electronic cabin to prohibit the discharge operation of the electrode.

[0031] The watertight tube 1 and the watertight end cover 2 are both made of transparent organic glass, which can ensure good insulation between the watertight tube 1, the watertight end cover 2 and the terminal 4, and is convenient for regular observation and maintenance.

[0032] Terminal 4 is made of TC4 titanium alloy, which can provide better corrosion resistance.

[0033] The watertight end cap 2 is secured to the watertight cylinder 1 with a lock nut 6. If water ingress is detected in the watertight cylinder 1, the end cap 2 and electrodes 9 can be quickly removed for replacement. This eliminates the need to disassemble the entire electronic watertight compartment 10, effectively reducing the difficulty and time required for replacement.

[0034] Before use, the negative lead 11 is crimped to the terminal 5, and the positive lead 13 is also crimped to the terminal 5. The terminal 5 is fixed to the terminal post 4 with a locking nut 6.

[0035] Evenly sprinkle calcium oxide powder 14 on the bottom of the watertight cylinder 1, the negative lead 11 and the positive lead 13, open the valve of the airtight valve 16, use a vacuum equipment to vacuum the watertight cylinder 1, close the valve, and then connect the calcium oxide filling.

Claims

1. A watertight structure for preventing water leakage from electrodes of an underwater strong sound driving device, wherein the underwater strong sound driving device comprises an electronic watertight compartment (10) and an electrode (9), wherein a circuit part is provided in the electronic watertight compartment (10), and the circuit part is connected to the electrode (9) via a cable (8), and wherein: A watertight cylinder (1) is provided in the electronic watertight compartment (10), and a watertight end cover (2) is provided on the top of the watertight cylinder (1). The watertight end cover (2) is used to seal the watertight cylinder (1) and the electronic watertight compartment (10) to form an integral watertight structure; the cable (8) passes through the watertight end cover (2), and rubber vulcanization treatment is adopted between the electrode (9) and the outer layer of the cable (8), as well as between the outer layer of the cable (8) and the watertight end cover (2) to maintain a watertight state; two symmetrical rubber seals are provided at the bottom of the watertight cylinder (1). The terminal posts (4) of the watertight cylinder (1) are located at the inner and outer ends of the watertight cylinder (1) and are respectively provided with inner terminal posts (51) and outer terminal posts (52). After the cable (8) enters the watertight end cover (2), the negative lead (11) and the positive lead (13) respectively pass through the two terminal posts (4) and realize electrical connection between the circuit part and the electrode (9) through the inner terminal posts (51) and the outer terminal posts (52), thereby improving the reliability of the connection under the action of high voltage.

2. The watertight structure for preventing water leakage from electrodes used in underwater strong sound repelling devices according to claim 1, characterized in that: The inner terminal (51) and the outer terminal (52) are low-temperature terminals, and the negative lead (11) and the positive lead (13) are pressed into the terminals by hydraulic pliers and then fixed by locking nuts (6).

3. The watertight structure for preventing water leakage from electrodes for an underwater strong sound repelling device according to claim 1, characterized in that: A groove is provided on the connection terminal (51, 52), and an O-shaped sealing ring is placed thereon to ensure a watertight effect, so as to prevent water from seeping into the negative lead (11) or the positive lead (13) from entering the electronic watertight compartment (10) through the connection terminal.

4. The watertight structure for preventing water leakage from electrodes for an underwater strong sound repelling device according to claim 1, characterized in that: A water inlet detection wire (12) is spirally wound around the negative lead (11) and the positive lead (13). When the water inlet detection wire (12) detects the presence of water, the electrode (9) stops discharging in the water, thereby preventing the terminal (4) from being broken down under high voltage.

5. The watertight structure for preventing water leakage from electrodes used in underwater strong sound repelling devices according to claim 1, characterized in that: Calcium oxide powder is evenly sprinkled on the bottom of the watertight tube (1) and the negative electrode lead (11) and the positive electrode lead (13), and the inside of the watertight tube (1) is evacuated and then filled with carbon dioxide gas. When water seeps into the watertight tube (1), the calcium oxide reacts with the carbon dioxide gas and the air pressure detector (15) provided in the watertight tube (1) detects the internal air pressure drop and prohibits electrode discharge.

6. The watertight structure for preventing water leakage from electrodes for an underwater strong sound repelling device according to claim 5, characterized in that: An airtight valve (16) is fixed on the watertight end cover (2) for injecting carbon dioxide gas into the watertight cylinder (1).

7. The watertight structure for preventing water leakage from electrodes used in an underwater strong sound repelling device according to claim 1, characterized in that: The watertight end cover (2) and the watertight cylinder (1) are fastened with a locking nut (6).

8. The watertight structure for preventing water leakage from electrodes used in an underwater strong sound repelling device according to any one of claims 1 to 7, characterized in that: The watertight cylinder (1) and the watertight end cover (2) are both made of transparent organic glass to ensure good insulation between the watertight cylinder (1), the watertight end cover (2) and the terminal (4), and to facilitate regular observation and maintenance.

9. The watertight structure for preventing water leakage from electrodes used in an underwater strong sound repelling device according to any one of claims 1 to 7, characterized in that: The terminal (4) is made of TC4 titanium alloy.

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