Depth falling prevention device for submersible

Abstract

The utility model discloses a depth falling prevention device for a submersible, and relates to the technical field of diving equipment.The depth falling prevention device comprises a PLC and a depth meter, the output end of the depth meter is electrically connected with the input end of the PLC, and the depth meter is used for monitoring the depth change of the submersible in water in real time and feeding back a depth change signal to the PLC; the submersible further comprises an adjusting water cabin and a main water cabin, the volume of the adjusting water cabin is smaller than that of the main water cabin, the adjusting water cabin and the main water cabin are both arranged in the submersible, and water in the adjusting water cabin and water in the main water cabin are both discharged out of the submersible through a drainage pipe. The device further comprises an air supply part and a pressure increasing valve, the output end of the air supply part is connected with the input end of the pressure increasing valve, the output end of the pressure increasing valve communicates with the input end of the adjusting water cabin, and the air supply part and the pressure increasing valve are both electrically connected with the PLC. The device has the effect of automatically adjusting the diving depth of the submersible.

Description

Technical Field

[0001] The present application relates to the technical field of diving equipment, and in particular to a device for preventing a submersible from falling into depth. Background Art

[0002] A submersible's ascent and descent are achieved by changing the volume of water in its pressure chambers (called main or ballast tanks) to alter the submersible's overall weight and density, allowing it to ascend or descend. A "dive" refers to a submersible's rapid, uncontrolled descent underwater, unable to be stopped or slowed by conventional means. Seawater pressure is proportional to depth; the deeper the depth, the greater the pressure. Therefore, a "dive" can pose a significant risk to a submersible and its crew, as the submersible could sink beyond its designed depth, exposing it to excessive water pressure, potentially leading to a rupture of the submersible's hull and potentially catastrophic consequences.

[0003] There are many reasons for falling deeper, including operational errors and mechanical failures, but the most common is a sudden drop in seawater density during navigation or hovering. Seawater density is primarily determined by temperature and salinity. When the upper layer of seawater is denser and the lower layer is less dense, this is commonly known as a "sea cliff." When a submersible encounters this "sea cliff," the reduced density around it causes it to sink. At this point, the operator needs to quickly drain the submersible to reduce its density, allowing it to surface and avoid falling deeper.

[0004] However, there are errors in manual drainage operations of the submersible. If the operator fails to control the drainage of the submersible in time, the submersible's fall in depth may be difficult to reverse, resulting in serious consequences. Utility Model Content

[0005] In order to improve the situation where the submersible fails to drain water in time due to manual operation, which may cause the submersible to fall to a depth that is difficult to reverse, the present application provides a device for preventing the submersible from falling to a depth.

[0006] The present application provides a device for preventing a submersible from falling into depth, which adopts the following technical solution:

[0007] A device for preventing a submersible from falling into depth, comprising:

[0008] A PLC controller and a depth gauge, wherein an output end of the depth gauge is electrically connected to an input end of the PLC controller, and the depth gauge is used to monitor the depth change of the submersible in water in real time and feed back a depth change signal to the PLC controller;

[0009] A regulating water tank and a main water tank, wherein the regulating water tank has a smaller volume than the main water tank, and both the regulating water tank and the main water tank are placed inside the submersible, and the water in the regulating water tank and the main water tank is discharged outside the submersible through a drain pipe;

[0010] An air supply component and a boosting valve, wherein the output end of the air supply component is connected to the input end of the boosting valve, and the output end of the boosting valve is communicated with the input end of the regulating water tank, and the air supply component and the boosting valve are both electrically connected to the PLC controller.

[0011] By adopting the above technical solution, when the depth gauge detects that the depth of the submersible in the water is rapidly decreasing, the depth gauge will feed back the signal to the PLC controller, and the PLC controller will send work instructions to the air supply component and the boosting valve. At this time, the air supply component starts to work, and the boosting valve opens. The air supply component will pass high-pressure gas into the regulating water tank, and automatically discharge the water in the regulating water tank to the outside of the submersible cabin, thereby quickly reducing the weight and density of the submersible, offsetting the impact of the decrease in the density of external seawater, and avoiding falling depth. The entire reaction process automatically responds and is completed, reducing the error caused by human operation.

[0012] Optionally, a pressure differential meter is also included, the output end of the pressure differential meter is electrically connected to the input end of the PLC controller, and the pressure differential meter is used to monitor the internal and external pressure difference of the submersible in real time and feed back the pressure difference signal to the PLC controller.

[0013] By adopting the above technical solution, when the pressure differential gauge detects that the pressure difference between the inside and outside of the submersible is greater than the preset value, and the depth value detected by the depth gauge also exceeds the preset value, the PLC controller will send a drainage and buoyancy signal to the regulating water tank, and can adjust the buoyancy according to the pressure difference between the inside and outside of the submersible, providing the PLC controller with more environmental parameters to ensure the accuracy of the buoyancy adjustment.

[0014] Optionally, a pressure gauge is provided between the boost valve and the regulating water tank, and the pressure gauge is used to monitor the pressure value in the regulating water tank in real time. The regulating water tank is connected to a pressure relief valve, and the water or gas in the regulating water tank can be discharged through the pressure relief valve. The pressure gauge and the pressure relief valve are both electrically connected to the PLC controller.

[0015] By adopting the above technical solution, the pressure gauge can monitor the pressure of the regulating water tank in real time. When the pressure of the regulating water tank is too high, the pressure relief valve is automatically opened through the PLC controller to reduce the pressure and prevent the regulating water tank from being damaged due to overpressure.

[0016] Optionally, the main water tank is connected to a water supply pump, the output end of the water supply pump is connected to the input ends of the regulating water tank and the main water tank at the same time, the water supply pump is used to suck water outside the submersible tank into the regulating water tank or the main water tank, and the water supply pump is electrically connected to the PLC controller.

[0017] By adopting the above technical solution, when the submersible needs to dive again, the PLC controller controls the water supply pump to re-inject ballast water into the regulating water tank and the main water tank, thereby adjusting the weight and density of the submersible.

[0018] Optionally, a first valve is provided on the water pipe connecting the water supply pump to the main water tank, and a second valve is provided on the water pipe connecting the water supply pump to the regulating water tank. Both the first valve and the second valve are electrically connected to the PLC controller.

[0019] By adopting the above technical solution, the first valve and the second valve can independently control whether the water supply pump supplies water to the main water tank and the regulating water tank, so that the main water tank and the regulating water tank are independently separated. By controlling the switching of different valves, the direction of the water flow can be accurately controlled, further optimizing the buoyancy adjustment effect.

[0020] Optionally, a plurality of regulating water tanks are provided, and the plurality of regulating water tanks are used to be distributed at different positions inside the submersible to adjust the submersible's ascending or descending posture.

[0021] By adopting the above technical solution, the attitude of the submersible can be adjusted by controlling the regulating water tanks in different positions, so that it can remain stable in the water, thereby adjusting the submersible's upward or downward attitude.

[0022] Optionally, a backup power supply is also included, which is used to provide power to the PLC controller, air supply components and boost valve. The input end of the backup power supply is connected to a generator, and a spiral blade is fixed to the input end of the generator. The spiral blade is rotatably connected to the drain pipe, and the spiral blade can be driven to rotate by the water flow. The spiral blade is connected to the generator through a gearbox.

[0023] By adopting the above technical solution, when the regulating water tank or the main water tank is drained, the spiral blades will rotate to generate torque. The output torque is amplified by the gearbox, driving the rotor inside the generator to rotate, thereby making the generator generate electricity. The generator stores the generated electricity in the backup power supply for emergency use. The backup power supply ensures the power supply of key components in an emergency and improves the reliability of the device.

[0024] Optionally, an auxiliary sonar is also included, which is electrically connected to the PLC controller and is used to monitor objects in the surrounding environment of the submersible in real time to adjust the buoyancy in advance.

[0025] By adopting the above technical solution, auxiliary sonar is used to monitor the surrounding environment of the submersible in real time, such as seabed topography and obstacles, predict possible buoyancy changes, and adjust the buoyancy in advance to avoid emergencies.

[0026] In summary, this application has at least one of the following beneficial effects:

[0027] 1. A depth gauge is set to monitor the depth change of the submersible in real time and feed it back to the PLC controller. A differential pressure gauge is also set to monitor the internal and external pressure difference of the submersible in real time. The PLC controller automatically controls and adjusts the water tank drainage according to the preset depth change threshold and pressure difference threshold, thereby automatically controlling the submersible's ascent, reducing the safety risks caused by the submersible falling to a depth, and greatly improving the safety performance of the submersible.

[0028] 2. By setting up a regulating water tank with a smaller capacity than the main water tank, the response speed of the smaller regulating water tank is significantly faster than the larger main water tank, so that the submersible can respond quickly and surface when it falls to a depth;

[0029] 3. By setting a boost valve to increase the pressure of the regulating water tank, the water can be discharged quickly. At the same time, by setting a pressure relief valve to reduce the pressure of the regulating water tank, potential dangers caused by excessive pressure are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram showing the working principle of the anti-falling device in Example 1 of the present application;

[0031] Figure 2 This is a structural diagram showing the distribution of the regulating water tank and backup power supply in Example 2 of the present application.

[0032] Explanation of the accompanying symbols: 1. PLC controller; 2. Depth gauge; 3. Adjusting water tank; 31. Pressure relief valve; 32. Differential pressure gauge; 4. Main water tank; 5. Drain pipe; 6. Air supply part; 61. Booster valve; 62. Pressure gauge; 7. Water supply pump; 71. First valve; 72. Second valve; 8. Backup power supply; 81. Generator; 82. Gearbox; 9. Propeller blade; 10. Auxiliary sonar. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-2 This application is described in further detail.

[0034] Example 1:

[0035] Example 1 of the present application discloses a device for preventing a submersible from falling into the depth of a vehicle. Figure 1 The anti-depth falling device for the submersible includes a PLC controller 1 and a depth gauge 2. The output end of the depth gauge 2 is electrically connected to the input end of the PLC controller 1. The depth gauge 2 can monitor the depth change of the submersible in the water in real time, and can feed back a signal to the PLC controller 1 when it is detected that the amplitude of the depth change exceeds a threshold.

[0036] The anti-diving device also includes a regulating water tank 3 and a main water tank 4. The regulating water tank 3 has a smaller volume than the main water tank 4. This allows the regulating water tank 3 to drain more quickly, resulting in a faster response. Both the regulating water tank 3 and the main water tank 4 are located inside the submersible, and the water in both can be discharged from the submersible through a drain pipe 5. Both the regulating water tank 3 and the main water tank 4 can adjust the amount of water inside them to change the weight and density of the submersible, thereby enabling the submersible to ascend or descend.

[0037] Reference Figure 1 The anti-falling-deep device also includes an air supply component 6 and a boosting valve 61. The air supply component 6 can be an air pump. The output end of the air supply component 6 is connected to the input end of the boosting valve 61, and the output end of the boosting valve 61 is connected to the input end of the regulating water tank 3. The air supply component 6 and the boosting valve 61 are both electrically connected to the PLC controller 1, so that the PLC controller 1 can automatically control the air supply component 6 and the boosting valve 61 to open or close.

[0038] When the density of seawater outside the submersible decreases, the submersible is compressed by the pressure in the seawater and begins to descend rapidly. At this time, the depth gauge 2 detects that the depth of the submersible in the water is rapidly decreasing. When the rate of descent reaches a threshold, the depth gauge 2 feeds back a signal to the PLC controller 1. The PLC controller 1 sends a working instruction to the air supply component 6 and the boost valve 61. At this time, the air supply component 6 starts to work, and the boost valve 61 opens. The air supply component 6 passes high-pressure gas into the regulating water tank 3, and automatically and quickly discharges the water in the regulating water tank 3 to the outside of the tank, thereby quickly reducing the weight and density of the submarine, offsetting the impact of the decrease in the density of external seawater, and avoiding falling in depth. The entire reaction process automatically responds and is completed, reducing the error caused by human operation.

[0039] A pressure gauge 62 is connected between the boost valve 61 and the regulating water tank 3. The input of the pressure gauge 62 is connected to the regulating water tank 3, and the output of the pressure gauge 62 is connected to the input of the PLC controller 1. The pressure gauge 62 can monitor the pressure inside the regulating water tank 3 in real time. Furthermore, a pressure relief valve 31 is connected to the regulating water tank 3, and the pressure relief valve 31 is electrically connected to the PLC controller 1. When the pressure in the regulating water tank 3 is too high, the PLC controller 1 sends an open command to the pressure relief valve 31, allowing the water or gas inside the regulating water tank 3 to be discharged through the pressure relief valve 31, thereby reducing the internal pressure and preventing damage to the regulating water tank 3 due to overpressure.

[0040] Furthermore, to prevent errors in the data monitored by the depth gauge 2, which could cause the submersible to surface even when it has not fallen deeper, the anti-depth drop device also includes a pressure differential gauge 32. The output end of the pressure differential gauge 32 is electrically connected to the input end of the PLC controller 1. The pressure differential gauge 32 can monitor the pressure difference between the inside and outside of the submersible in real time. When the density of the seawater in which the submersible is located suddenly decreases, the submersible will sink to a certain extent, and the water pressure outside the cabin will increase. When the pressure difference exceeds the monitoring threshold of the pressure differential gauge 32, the pressure differential gauge 32 will feed back a pressure differential signal to the PLC controller 1. The signal fed back to the PLC controller 1 by the pressure differential gauge 32 is combined with the signal fed back to the PLC controller 1 by the depth gauge 2. Only then will the PLC controller 1 send working instructions to the air supply component 6 and the boost valve 61, thereby improving the reliability of the monitoring system and enabling buoyancy adjustment based on the pressure difference between the inside and outside of the submersible. This provides the PLC controller 1 with more environmental parameters and ensures the accuracy of the buoyancy adjustment.

[0041] Reference Figure 1 The main water tank 4 is connected to a water supply pump 7. The output end of the water supply pump 7 is connected to the input ends of both the regulating water tank 3 and the main water tank 4. The water supply pump 7 is also electrically connected to the PLC controller 1. A first valve 71 is connected to the water pipe connecting the water supply pump 7 to the main water tank 4, and a second valve 72 is connected to the water pipe connecting the water supply pump 7 to the regulating water tank 3. Both the first valve 71 and the second valve 72 can be solenoid valves. Both the first valve 71 and the second valve 72 are electrically connected to the PLC controller 1. The water supply pump 7 can suck water outside the submersible cabin into the regulating water tank 3 or the main water tank 4. When the submersible needs to dive again, the PLC controller 1 controls the water supply pump 7 to re-inject ballast water into the regulating water tank 3 and the main water tank 4, thereby adjusting the weight and density of the submersible. The first valve 71 and the second valve 72 can individually control whether the water supply pump 7 supplies water to the main water tank 4 and the regulating water tank 3, so that the main water tank 4 and the regulating water tank 3 are independently separated. By controlling the switching of different valves, the direction of the water flow can be accurately controlled, further optimizing the effect of buoyancy regulation.

[0042] In other embodiments of the present application, the water supply pump 7 can also cooperate with the air supply component 6 when necessary to actively pump out the regulating water tank 3 or the main water tank 4 from the submersible, thereby further improving the response speed of preventing depth drop.

[0043] The implementation principle of the anti-depth falling device for a submersible in Example 1 of the present application is as follows: a regulating water tank 3 with a capacity smaller than that of the main water tank 4 is set in the submersible, and the input end of the regulating water tank 3 is connected to an air supply component 6 and a boosting valve 61, and the air supply component 6 and the boosting valve 61 are regulated and controlled by a PLC controller 1. When the monitoring values ​​of the pressure gauge 62 and the depth gauge 2 exceed the set threshold value, the PLC controller 1 controls the opening of the air supply component 6 and the boosting valve 61, and injects high-pressure gas into the regulating water tank 3, and quickly discharges the water in the regulating water tank 3 out of the submersible, thereby realizing automatic and rapid response and surfacing of the submersible.

[0044] Example 2:

[0045] The difference between Example 2 and Example 1 is that: Figure 2 The number of regulating water tanks 3 can be multiple. In Example 2 of the present application, there are two regulating water tanks 3, one at the head end and the other at the tail end of the submersible. When the submersible tilts during ascent, the regulating water tanks 3 at the head end or the tail end can be controlled to drain water, thereby adjusting the submersible's posture and maintaining a stable posture in the water during ascent or descent.

[0046] Furthermore, the anti-diving device also includes a backup power supply 8, which can provide backup power for key electrical components within the submersible, such as the PLC controller 1, air supply 6, and boost valve 61. The input of backup power supply 8 is connected to a generator 81, to which a spiral blade 9 is fixed. Rotatably connected to the drain pipe 5, the spiral blade 9 can be propelled and rotated by the water flow. Simultaneously, the spiral blade 9 is connected to the generator 81 via a gearbox 82, which effectively increases the speed of the input shaft of the spiral blade 9, thereby increasing the power generated by the generator 81. When the regulating water tank 3 or the main water tank 4 is draining, the spiral blade 9 rotates, generating torque. This torque is amplified by the gearbox 82, driving the rotor within the generator 81 to rotate, causing the generator 81 to generate electricity. The generated electricity is stored in the backup power supply 8 for emergency use. The backup power supply 8 ensures power supply to key components in emergencies, improving the reliability of the device.

[0047] Furthermore, the anti-deepening device also includes an auxiliary sonar 10, which is electrically connected to the PLC controller 1. The auxiliary sonar 10 can monitor objects in the surrounding environment of the submersible, such as seabed terrain and obstacles, in real time, and transmit the monitoring signal to the PLC controller 1, thereby avoiding emergencies such as collision between the submersible and objects in the surrounding environment.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A device for preventing a submersible from falling into a depth, characterized in that: include A PLC controller (1) and a depth gauge (2), wherein an output end of the depth gauge (2) is electrically connected to an input end of the PLC controller (1), and the depth gauge (2) is used to monitor the depth change of the submersible in water in real time and feed back a depth change signal to the PLC controller (1); A regulating water tank (3) and a main water tank (4), wherein the regulating water tank (3) has a smaller volume than the main water tank (4), and both the regulating water tank (3) and the main water tank (4) are placed inside the submersible, and water in both the regulating water tank (3) and the main water tank (4) is discharged outside the submersible through a drain pipe (5); An air supply component (6) and a pressure boosting valve (61), wherein the output end of the air supply component (6) is connected to the input end of the pressure boosting valve (61), and the output end of the pressure boosting valve (61) is communicated with the input end of the regulating water tank (3), and the air supply component (6) and the pressure boosting valve (61) are both electrically connected to the PLC controller (1).

2. The anti-deepening device for a submersible according to claim 1, characterized in that: It also includes a pressure differential meter (32), the output end of which is electrically connected to the input end of the PLC controller (1). The pressure differential meter (32) is used to monitor the internal and external pressure difference of the submersible in real time and feed back the pressure difference signal to the PLC controller (1).

3. The anti-deepening device for a submersible according to claim 1, characterized in that: A pressure gauge (62) is provided between the boost valve (61) and the regulating water tank (3). The pressure gauge (62) is used to monitor the pressure value in the regulating water tank (3) in real time. The regulating water tank (3) is connected to a pressure relief valve (31). Water or gas in the regulating water tank (3) can be discharged through the pressure relief valve (31). Both the pressure gauge (62) and the pressure relief valve (31) are electrically connected to the PLC controller (1).

4. The anti-deepening device for a submersible according to claim 1, characterized in that: The main water tank (4) is connected to a water supply pump (7), the output end of the water supply pump (7) is simultaneously connected to the input ends of the regulating water tank (3) and the main water tank (4), the water supply pump (7) is used to suck water outside the submersible cabin into the regulating water tank (3) or the main water tank (4), and the water supply pump (7) is electrically connected to the PLC controller (1).

5. The anti-deepening device for a submersible according to claim 4, characterized in that: A first valve (71) is provided on the water pipe connecting the water supply pump (7) and the main water tank (4), and a second valve (72) is provided on the water pipe connecting the water supply pump (7) and the regulating water tank (3). Both the first valve (71) and the second valve (72) are electrically connected to the PLC controller (1).

6. The anti-deepening device for a submersible according to claim 1, characterized in that: A plurality of regulating water tanks (3) are provided, and the plurality of regulating water tanks (3) are used to be distributed at different positions inside the submersible to adjust the submersible's ascending or descending posture.

7. The anti-deepening device for a submersible according to claim 1, characterized in that: It also includes an auxiliary sonar (10), which is electrically connected to the PLC controller (1). The auxiliary sonar (10) is used to monitor objects in the surrounding environment of the submersible in real time to adjust the buoyancy in advance.

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