Marine piezoelectric liquid level sensor protection device, arrangement method and marine vessel

Abstract

The application discloses a marine piezoelectric liquid level sensor protection device, a layout method and a ship. The marine piezoelectric liquid level sensor protection device comprises a protection pipe structure and a sealing connection assembly. The protection pipe structure comprises a first protection pipe and a second protection pipe which are spaced apart along the height direction of a cabin. The first protection pipe is fixedly arranged on the inner wall of the cabin and is in communication with the cabin. The second protection pipe is fixedly arranged on the top plate of the cabin and is in communication with the cabin. A piezoelectric liquid level sensor is floatingly arranged in the first protection pipe. The sealing connection assembly is arranged outside the cabin. The sealing connection assembly can seal one end of the second protection pipe which is away from the first protection pipe. A cable is sequentially arranged in the second protection pipe and the sealing connection assembly. The first protection pipe can be effectively prevented from being blocked by impurities and / or silt in the cabin, so that the piezoelectric liquid level sensor can accurately and efficiently monitor the liquid level in the cabin.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a marine piezoelectric liquid level sensor protection device, its arrangement method, and the ship thereof. Background Technology

[0002] With the increasing automation of ships, level telemetry systems have become an important component of shipboard systems. These systems utilize electronic feedback technology to transmit the liquid level information from compartments such as water tanks, oil tanks, and cargo holds back to the bridge. The bridge crew can then take appropriate actions based on this information, thereby improving ship safety. Piezoelectric level sensors are a crucial component of these systems. They transmit electrical signals based on the pressure differences caused by changes in liquid level, providing feedback on the liquid level within the compartment. Current technology typically employs side-mounted or top-mounted installation methods for the piezoelectric level sensors. Side-mounted sensors are placed on the side wall at the bottom of the compartment for easy operation; top-mounted sensors are installed at the bottom of the compartment, with the connector mounted at the top.

[0003] For top-mounted piezoelectric level sensors, existing protective devices, while able to reduce the impact of sediment and / or water flow in the chamber on the monitoring accuracy and lifespan of the piezoelectric level sensor, are not very effective in improving the monitoring accuracy and lifespan of the piezoelectric level sensor. Summary of the Invention

[0004] The purpose of this invention is to provide a protection device, arrangement method, and vessel for marine piezoelectric level sensors, in order to solve the problem that while existing protection devices can reduce the impact of mud and / or water flow in the cabin on the monitoring accuracy and service life of piezoelectric level sensors, they are not very effective in improving the monitoring accuracy and service life of piezoelectric level sensors.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A marine piezoelectric liquid level sensor protection device, wherein the liquid level telemetry includes a piezoelectric liquid level sensor and a cable connected to the piezoelectric liquid level sensor, comprising:

[0007] The protective tube structure includes a first protective tube and a second protective tube spaced apart along the height direction of the compartment. The first protective tube is fixedly installed on the inner wall of the compartment and communicates with the compartment. The second protective tube is fixedly installed on the top plate of the compartment and communicates with the compartment. The piezoelectric liquid level sensor floats inside the first protective tube.

[0008] A sealing connection assembly is distributed outside the cabin. The sealing connection assembly can seal the end of the second protective tube away from the first protective tube. The cable passes through the second protective tube and the sealing connection assembly in sequence.

[0009] Preferably, the first protective tube includes a tube body and a communication limiting structure connected to the tube body. The communication limiting structure is distributed on the first protective tube at one end away from the second protective tube. The communication limiting structure can connect the tube body and the chamber, and the piezoelectric liquid level sensor can abut against the communication limiting structure.

[0010] Preferably, the communication limiting structure is a mesh plate fixedly connected to the tube body.

[0011] Preferably, the connecting limiting structure is a hollow bracket fixedly connected to the tube body.

[0012] Preferably, the inner wall of the compartment is also provided with spoilers, which are spaced apart below the first protective tube along the height direction of the compartment.

[0013] Preferably, the spoiler is a flat plate; or, the spoiler is an arc-shaped plate.

[0014] Preferably, the distance between the lower end of the first protective tube and the inner bottom wall of the compartment along the height direction is 120mm to 150mm.

[0015] Preferably, the sealing connection assembly includes a flange base fixedly disposed on the second protective tube, an outlet flange detachably connected to the flange base, and a sealing structure disposed on the outlet flange. The cable passes through the flange base, the sealing structure, and the outlet flange, and the sealing structure can seal the gap between the outlet flange and the cable.

[0016] A method for arranging a marine piezoelectric liquid level sensor protection device, used for arranging the aforementioned marine piezoelectric liquid level sensor protection device, wherein the compartment is provided with a water inlet, and the method for arranging the marine piezoelectric liquid level sensor protection device includes:

[0017] The distance between the marine piezoelectric liquid level sensor protection device and the water inlet is greater than or equal to a set distance.

[0018] The distance between the lower end of the first protective tube and the inner bottom wall of the compartment is set to be 120mm to 150mm.

[0019] The vessel includes a liquid level telemetry device and the aforementioned marine piezoelectric liquid level sensor protection device, wherein the liquid level telemetry device is installed in the marine piezoelectric liquid level sensor protection device.

[0020] The beneficial effects of this invention are:

[0021] The present invention aims to provide a protective device, arrangement method, and vessel for a marine piezoelectric liquid level sensor. The protective device includes a protective tube structure and a sealing connection assembly. The protective tube structure comprises a first protective tube and a second protective tube spaced apart along the height direction of the compartment. The first and second protective tubes are independent of each other. The first protective tube is fixedly installed on the inner wall of the compartment and communicates with the compartment. The second protective tube is fixedly installed on the top plate of the compartment and communicates with the compartment. The piezoelectric liquid level sensor floats within the first protective tube. This arrangement allows liquid in the compartment to flow smoothly into the first protective tube through the gap between the first and second protective tubes, and ensures that the liquid in the compartment... The liquid can flow smoothly from the end of the first protective tube away from the second protective tube, effectively preventing impurities and / or silt from clogging the first protective tube. Secondly, the piezoelectric level sensor floats inside the first protective tube, confining it within the tube and enabling accurate and efficient monitoring of the liquid level inside the chamber. The sealing connection assembly is located outside the chamber, sealing the end of the second protective tube away from the first protective tube to prevent liquid from flowing out. The cable passes through the second protective tube and the sealing connection assembly and is electrically connected to an external receiver, enabling effective monitoring of the liquid level inside the chamber. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a marine piezoelectric liquid level sensor protection device provided in a specific embodiment of the present invention;

[0023] Figure 2 This is a partial structural diagram of a marine piezoelectric liquid level sensor protection device provided in a specific embodiment of the present invention. Figure 1 ;

[0024] Figure 3 This is a partial structural diagram of a marine piezoelectric liquid level sensor protection device provided in a specific embodiment of the present invention. Figure 2 .

[0025] In the picture:

[0026] 100. Remote liquid level measurement; 110. Piezoelectric liquid level sensor; 120. Cable;

[0027] 200. Cabin; 210. Support frame;

[0028] 1. Protective tube structure; 11. First protective tube; 111. Tube body; 112. Limiting structure; 12. Second protective tube;

[0029] 2. Sealing connection assembly; 21. Flange base; 211. Groove; 22. Outlet flange; 23. Sealing structure;

[0030] 3. Spoilers;

[0031] 4. Hoop. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0033] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0036] This invention provides a protection device for a marine piezoelectric liquid level sensor, such as... Figure 1As shown, the marine piezoelectric liquid level sensor protection device includes a protection tube structure 1 and a sealing connection assembly 2. The protection tube structure 1 includes a first protection tube 11 and a second protection tube 12 spaced apart along the height direction of the compartment 200. The first protection tube 11 is fixedly installed on the inner wall of the compartment 200 and communicates with the compartment 200. The second protection tube 12 is fixedly installed on the top plate of the compartment 200 and communicates with the compartment 200. The piezoelectric liquid level sensor 110 floats inside the first protection tube 11. The sealing connection assembly 2 is distributed outside the compartment 200. The sealing connection assembly 2 can seal the end of the second protection tube 12 that is away from the first protection tube 11. The cable 120 is sequentially passed through the second protection tube 12 and the sealing connection assembly 2.

[0037] like Figure 1 As shown, the shipboard piezoelectric liquid level sensor protection device has a first protective tube 11 and a second protective tube 12 that are independent of each other. The first protective tube 11 is fixedly installed on the inner wall of the compartment 200 and communicates with the compartment 200. The second protective tube 12 is fixedly installed on the top plate of the compartment 200 and communicates with the compartment 200. The piezoelectric liquid level sensor 110 floats inside the first protective tube 11. This arrangement allows the liquid in the compartment 200 to flow smoothly into the first protective tube 11 through the gap between the first protective tube 11 and the second protective tube 12, and also allows the liquid in the compartment 200 to flow smoothly into the first protective tube 11 from the end of the first protective tube 11 away from the second protective tube 12, effectively preventing liquid from flowing into the compartment 200. Impurities and / or silt in the liquid level 11 block the first protective tube 11. The piezoelectric level sensor 110 floats within the first protective tube 11, confining it within this confinement. This allows the piezoelectric level sensor 110 to accurately and efficiently monitor the liquid level within the chamber 200. The sealing connection assembly 2 is located outside the chamber 200. This assembly seals the end of the second protective tube 12 furthest from the first protective tube 11, preventing liquid from flowing out of the chamber 200. The cable 120 passes sequentially through the second protective tube 12 and the sealing connection assembly 2 and is electrically connected to an external receiver, enabling effective monitoring of the liquid level within the chamber 200.

[0038] Specifically, such as Figure 1 As shown, the inner wall of the compartment 200 is provided with a support 210, and the first protective pipe 11 is connected to the support 210 by a clamp 4. It can be understood that the first protective pipe 11 can also be connected to the support 210 by means of threaded connection or welding.

[0039] Specifically, in this embodiment, one end of the second protective pipe 12 is welded to the top plate of the compartment 200 and communicates with the compartment 200. This arrangement can prevent liquid in the compartment 200 from leaking from the connection between the top plate and the second protective pipe 12, and can also improve the connection strength of the second protective pipe 12.

[0040] Among them, such as Figure 1 As shown, the first protective tube 11 includes a tube body 111 and a communication limiting structure 112 connected to the tube body 111. The communication limiting structure 112 is distributed on the first protective tube 11 at one end away from the second protective tube 12. The communication limiting structure 112 can connect the tube body 111 and the chamber 200, and the piezoelectric liquid level sensor 110 can abut against the communication limiting structure 112. Specifically, the connecting limiting structure 112 confines the piezoelectric liquid level sensor 110 within the tube body 111. The connecting limiting structure 112 connects the tube body 111 and the chamber 200. When the liquid level in the chamber 200 is higher than the connecting limiting structure 112, the liquid flows into the tube body 111 through the connecting limiting structure 112, or flows into the tube body 111 through the gap between the tube body 111 and the second protective tube 12, causing the piezoelectric liquid level sensor 110 to float within the tube body 111. The connecting limiting structure 112 connects the tube body 111 and the chamber 200. A gap is also provided between the first protective tube 11 and the second protective tube 12, allowing impurities and / or sediment flowing into the tube body 111 to flow out of the tube body 111 under gravity, thereby preventing impurities and / or sediment from clogging the tube body 111 and improving the monitoring accuracy and precision of the piezoelectric liquid level sensor 110.

[0041] Specifically, the connecting and limiting structure 112 is a mesh plate fixedly connected to the pipe body 111. Alternatively, the connecting and limiting structure 112 can be a hollow bracket 210 fixedly connected to the pipe body 111. This configuration allows the pipe body 111 to communicate with the chamber 200, preventing impurities and / or sediment from clogging the pipe body 111, thus improving the monitoring accuracy and precision of the piezoelectric level sensor 110. Specifically, when the connecting and limiting structure 112 is a hollow bracket 210, a triangular hollow bracket is preferred. This design is simple, has a small contact area with the piezoelectric level sensor 110, provides good connectivity to the chamber 200, and offers good stability.

[0042] Because the liquid inside the chamber experiences turbulence during its flow, measures are taken to prevent this turbulence from affecting the monitoring accuracy and precision of the piezoelectric level sensor. For example... Figure 1As shown, a baffle plate 3 is also provided on the inner wall of the chamber 200. Along the height direction of the chamber 200, the baffle plates 3 are spaced apart below the first protective pipe 11. The baffle plates 3 can act as a shield, preventing turbulence from disturbing the piezoelectric level sensor 110, thereby further improving the monitoring accuracy and precision of the piezoelectric level sensor 110. It is understood that the position of the baffle plates 3 can be adaptively adjusted according to the flow direction of the water in the chamber 200 to avoid turbulence disturbing the piezoelectric level sensor 110. Specifically, in this embodiment, the baffle plates 3 are mounted on a bracket 210 on the inner wall of the chamber 200.

[0043] Specifically, in this embodiment, such as Figure 1 As shown, the baffle 3 is a flat plate. As an alternative, the baffle 3 can also be an arc-shaped plate. It is understood that the shape of the baffle 3 can be adaptively adjusted according to the flow direction of the water to better avoid turbulence from disturbing the piezoelectric level sensor 110.

[0044] The distance between the lower end of the first protective tube 11 and the inner bottom wall of the chamber 200 along the height direction of the chamber 200 ranges from 120mm to 150mm. This arrangement prevents debris and / or silt deposited at the bottom of the chamber 200 from clogging the tube 111, thereby further improving the monitoring accuracy and precision of the piezoelectric liquid level sensor 110.

[0045] Among them, such as Figure 1-3 As shown, the sealing connection assembly 2 includes a flange base 21 fixedly disposed on the second protective pipe 12, an outlet flange 22 detachably connected to the flange base 21, and a sealing structure 23 disposed on the outlet flange 22. The cable 120 passes through the flange base 21, the sealing structure 23, and the outlet flange 22. The sealing structure 23 can seal the gap between the outlet flange 22 and the cable 120. This arrangement seals the end of the second protective pipe 12 away from the first protective pipe 11 and prevents liquid in the compartment 200 from leaking from the connection between the cable 120 and the outlet flange 22.

[0046] Specifically, the sealing structure 23 is a stuffing box. Sealing material is filled inside the stuffing box. This prevents liquid leakage from the gap between the outlet flange 22 and the cable 120. Alternatively, a first sealing ring can be embedded in the inner circumferential wall of the outlet flange 22, and the first sealing ring is circumferentially pressed against the cable 120. This also prevents liquid leakage from the gap between the outlet flange 22 and the cable 120.

[0047] Specifically, in this embodiment, such as Figure 2 As shown, the flange base 21 and the outlet flange 22 are connected by bolts.

[0048] Specifically, to further improve the sealing performance of the sealing connection assembly 2, a protrusion is provided in one of the flange base 21 and the outlet flange 22, and a groove 211 is provided in the other, with the protrusion and groove 211 engaging. This reduces the risk of liquid leakage between the flange base 21 and the outlet flange 22. More specifically, a second sealing ring is provided between the flange base 21 and the outlet flange 22. This further avoids the risk of liquid leakage between the flange base 21 and the outlet flange 22. Specifically, in this embodiment, as... Figure 3 As shown, exemplified by a flange base 21 having a groove 211 and a cable outlet flange 22 having a protrusion, the groove 211 preferably has a triangular cross-section, but it can also be rectangular or trapezoidal. As an alternative, the flange base 21 has a protrusion and the cable outlet flange 22 has a groove 211.

[0049] The present invention also provides a method for arranging a marine piezoelectric liquid level sensor protection device, for arranging the above-mentioned marine piezoelectric liquid level sensor protection device, wherein the compartment 200 is provided with a water inlet, and the method for arranging the marine piezoelectric liquid level sensor protection device includes:

[0050] The distance between the marine piezoelectric level sensor protection device and the water inlet is set to be greater than or equal to a predetermined distance. This setting prevents liquid flow at the water inlet from affecting the monitoring accuracy and precision of the piezoelectric level sensor 110. In this embodiment, the predetermined distance is 3m. The predetermined distance can be adjusted according to actual operating conditions. The water inlet includes an inlet and an outlet.

[0051] The distance between the lower end of the first protective tube 11 and the inner bottom wall of the chamber 200 is set to be 120mm to 150mm. This setting prevents debris and / or silt deposited at the bottom of the chamber 200 from clogging the tube 111, thereby further improving the monitoring accuracy and precision of the piezoelectric level sensor 110.

[0052] The present invention also provides a ship, including a liquid level telemetry device 100, and the aforementioned marine piezoelectric liquid level sensor protection device, wherein the liquid level telemetry device 100 is disposed in the marine piezoelectric liquid level sensor protection device. This effectively improves the monitoring accuracy and precision of the piezoelectric liquid level sensor 110.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. Marine piezoelectric liquid level sensor protection device, a liquid level telemetry (100) comprising a piezoelectric liquid level sensor (110) and a cable (120) connected to the piezoelectric liquid level sensor (110), characterized in that, The application relates to a marine piezoelectric liquid level sensor protection device. The marine piezoelectric liquid level sensor protection device comprises a protection pipe structure (1) and a sealing connection assembly (2). The protection pipe structure (1) comprises a first protection pipe (11) and a second protection pipe (12) which are spaced apart along the height direction of a cabin (200), the first protection pipe (11) is fixedly arranged on the inner wall of the cabin (200) and penetrates the cabin (200), the second protection pipe (12) is fixedly arranged on the top plate of the cabin (200) and communicates with the cabin (200), and the piezoelectric liquid level sensor (110) is floatingly arranged in the first protection pipe (11). The sealing connection assembly (2) is arranged outside the cabin (200) and can seal one end of the second protection pipe (12) which is away from the first protection pipe (11), and the cable (120) is arranged in the second protection pipe (12) and the sealing connection assembly (2) in sequence.

2. Marine piezoelectric liquid level sensor protection according to claim 1, characterized in that The first protection pipe (11) comprises a pipe body (111) and a communication limiting structure (112) connected with the pipe body (111), the communication limiting structure (112) is arranged at one end of the first protection pipe (11) which is away from the second protection pipe (12), the communication limiting structure (112) can communicate the pipe body (111) and the cabin (200), and the piezoelectric liquid level sensor (110) can abut against the communication limiting structure (112).

3. The marine piezoelectric liquid level sensor protection device of claim 1, wherein, The communication limiting structure (112) is a mesh plate fixedly connected with the pipe body (111).

4. The marine piezoelectric liquid level sensor protection device of claim 1, wherein, The communication limiting structure (112) is a hollow support (210) fixedly connected with the pipe body (111).

5. Marine piezoelectric liquid level sensor protection according to claim 4, characterized in that The inner wall of the cabin (200) is further provided with a spoiler (3), and the spoiler (3) is spaced apart below the first protection pipe (11) along the height direction of the cabin (200).

6. Marine piezoelectric liquid level sensor protection according to any of claims 1-5, characterized in that, The spoiler (3) is a flat plate or an arc-shaped plate.

7. Marine piezoelectric liquid level sensor protection according to any of claims 1-5, characterized in that, The distance between the lower end of the first protection pipe (11) and the inner bottom wall of the cabin (200) along the height direction of the cabin (200) is 120mm-150mm.

8. Arrangement for the protection of a piezoelectric liquid level sensor for ships, characterised in that The sealing connection assembly (2) comprises a flange base (21) fixedly arranged on the second protection pipe (12), a cable outlet flange (22) detachably connected with the flange base (21), and a sealing structure (23) arranged on the cable outlet flange (22), the cable (120) is arranged in the flange base (21), the sealing structure (23) and the cable outlet flange (22), and the sealing structure (23) can seal the gap between the cable outlet flange (22) and the cable (120). The application further relates to a method for arranging the marine piezoelectric liquid level sensor protection device. The distance between the marine piezoelectric liquid level sensor protection device and the water inlet is greater than or equal to a set distance. The distance between the lower end of the first protection tube (11) and the inner bottom wall of the cabin (200) is 120mm-150mm.

9. A marine vessel comprising a liquid level telemetering (100), characterized in that Also included is the marine piezoelectric liquid level sensor protection device of any one of claims 1-7, wherein the liquid level telemetry (100) is disposed in the marine piezoelectric liquid level sensor protection device.

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