CN220670654U

CN220670654U - Ballast tank liquid level detection device

Info

Publication number: CN220670654U
Application number: CN202322212011.3U
Authority: CN
Inventors: 陈静; 郑晓; 薛亚宾; 曹敬; 李华; 施志军; 马利斌; 秦一春; 倪继平
Original assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Current assignee: Shanghai Waigaoqiao Shipbuilding Co Ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-03-26
Anticipated expiration: 2033-08-16

Abstract

The utility model relates to a technical field of ship ballast tank liquid level detection, in particular to a ballast tank liquid level detection device, which is used for detecting the liquid level in a ship ballast tank, wherein the ballast tank comprises a bottom ballast tank and a side ballast tank which are communicated, a plurality of partition boards which are sequentially arranged at intervals along the length direction of the bottom ballast tank are arranged on the inner top wall of the bottom ballast tank, the ballast tank liquid level detection device comprises a measuring pipe and an exhaust pipe, and one end of the measuring pipe stretches into the bottom ballast tank; the other end of the measuring tube extends out of the bottom ballast tank and extends in the height direction of the side ballast tank; one end of the exhaust pipe is communicated with a structure of the measuring pipe exposed out of the bottom ballast tank, and the other end of the exhaust pipe extends out of a deck which is flush with the top of the side ballast tank; the measuring tube is provided with vent holes at the height positions corresponding to the partition boards, and any partition board is provided with partition board holes to form an exhaust channel. Therefore, the device can be used for accurately detecting the liquid level of the ballast tank.

Description

Ballast tank liquid level detection device

Technical Field

The application relates to the technical field of ship ballast tank liquid level detection, in particular to a ballast tank liquid level detection device.

Background

Currently, in the ballast tank level detection of a ship, as shown in fig. 1 and 2, a blowing type sensing detection mode is often adopted, the blowing type sensing detection device comprises a measuring tube 1', an air duct 2', a gas-electric type level sensor 3', a throttle valve, a pressure reducing valve 4', and the like, the ballast tank comprises a bottom ballast tank 7 'and a side ballast tank 8' which are communicated, the lower part of the measuring tube 1 'is inserted into the bottom ballast tank 7', the top of the measuring tube is level with the top of the side ballast tank 8', or higher than the top of the side ballast tank 8', the air duct 2 'is installed at the side part of the bottom ballast tank 7', and the working principle of the blowing type sensing detection device is as follows: the compressed air is regulated to the working pressure of 3 to 3.5 kg through a pressure reducing valve 4', and is throttled through a throttle valve arranged in the sensor, the gas finally escapes from a pipe orifice close to the lower part of the cabin body in a bubble state, at the moment, the pressure in the air duct 2' is almost equal to the hydrostatic pressure in the cabin, so that a sensing element (pressure sensing diaphragm) of the sensor senses the pressure in the air duct 2', the pressure is converted into a standard electric signal through temperature compensation and linear correction, and then the current signal is converted into liquid level information through a PLC unit 5' and is transmitted to a monitoring screen 6'. Since the air bubbles discharged from the air duct 2' flow into the measuring tube 1', the measuring position of the measuring tube 1' is suddenly raised and lowered due to the tumbling of the air bubbles, and the detection result is inaccurate.

Disclosure of Invention

The utility model aims at providing a ballast tank liquid level detection device, when having solved the ballast tank liquid level detection of boats and ships that exist among the prior art to a certain extent and adopted the sensing detection mode of blowing, the bubble of intraductal exhaust of air duct can flow into and survey intraductally, because the bubble rolls, leads to survey the measuring position of survey pipe to suddenly go high and suddenly low, leads to the inaccurate technical problem of testing result.

The application provides a ballast tank liquid level detection device for detect the liquid level in the ballast tank of boats and ships, just the ballast tank is including bottom ballast tank and the lateral part ballast tank that is linked together, be provided with a plurality of baffles of following its length direction interval setting in order on the interior roof of bottom ballast tank, ballast tank liquid level detection device includes: a measuring tube and an exhaust tube;

wherein one end of the measuring tube extends into the bottom ballast tank; the other end of the measuring tube extends out of the bottom ballast tank and extends in the height direction of the side ballast tank until it is flush with or higher than the top of the side ballast tank;

one end of the exhaust pipe is communicated with a structure of the measuring pipe exposed out of the bottom ballast tank, and the other end of the exhaust pipe extends out of a deck which is flush with the top of the side ballast tank; and any partition plate is provided with partition plate holes so as to form an exhaust passage.

In the above technical scheme, further, the structure of the measuring tube in the bottom ballast tank is provided with ventilation holes.

In any of the above technical solutions, further, a vent hole is formed in a height position of the measuring tube corresponding to the separator.

In any of the above technical solutions, further, the exhaust pipe is gooseneck-shaped.

In any one of the above technical solutions, further, the exhaust pipe includes a first exhaust pipe, a second exhaust pipe, and a third exhaust pipe that are sequentially connected, and the connection parts of the three are smooth arc transition connection;

wherein the first exhaust pipe extends in a height direction perpendicular to the measurement pipe; the second exhaust pipe extends in a height direction parallel to the measurement pipe; the third exhaust pipe extends in an arcuate direction with its terminal end facing the deck.

In any of the above technical solutions, further, the deck is provided with a via hole, and a part of the structure of the exhaust pipe extends to the outside of the deck through the via hole.

In any of the above solutions, further, the ballast tank level detection device further includes a mounting base, and the exhaust pipe is fixed on the deck through the mounting base.

In any of the above solutions, further, the mounting base is a flange, which is mounted on the upper surface of the deck by a fastening member;

or the mounting seat is a rubber sleeve which is inserted into the through hole or is mounted on the upper surface of the deck through a fastening member.

In any of the above embodiments, further the exhaust pipe is in communication with the measurement pipe near a top thereof.

In any of the above technical solutions, further, the ballast tank liquid level detection device further includes a gas-electric liquid level sensor, a gas-guide tube, a compressor, a pressure reducing valve, a throttle valve, a controller and a display screen;

wherein one end of the air duct is communicated with the inside of one side, far away from the side ballast tank, of the bottom ballast tank, and the other end of the air duct is communicated with the gas-electric liquid level sensor; the throttle valve is arranged on the air duct and close to the gas-electric liquid level sensor, and the compressor is communicated with the throttle valve through the pressure reducing valve; the controller is respectively in communication connection with the liquid level sensor, the throttle valve and the display screen.

Compared with the prior art, the beneficial effects of this application are:

when the ballast tank liquid level detection device provided by the application is used for detecting the liquid level of the ballast tank, bubbles in the bottom ballast tank can be finally discharged to the side ballast tank from the bottom ballast tank through the baffle holes on the baffle plate, and then are discharged from the exhaust port at the top of the side ballast tank, so that the bubbles can not enter the measuring tube, in addition, even if the bubbles exist in the measuring tube, part of the bubbles can be discharged into the water of the bottom ballast tank through the air holes and are discharged through the baffle holes on the baffle plate, and the other part of the bubbles in the measuring tube can be discharged through the exhaust pipe communicated with the measuring tube, so that the bubbles in the measuring tube can not be caused to roll, and the accuracy of liquid level detection is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a partial structure of a blowing type sensing and detecting device according to the prior art;

FIG. 2 is a schematic view of another partial structure of a blowing-type sensing and detecting device according to the prior art;

fig. 3 is a schematic structural view of a ballast tank liquid level detecting device according to an embodiment of the present application;

fig. 4 is a schematic partial structure of a ballast tank liquid level detecting device according to an embodiment of the present application.

Reference numerals:

1 '-measuring tube, 2' -air duct, 3 '-gas-electric liquid level sensor, 4' -reducing valve, 5'-PLC unit, 6' -monitor screen, 7 '-bottom ballast tank, 8' -side ballast tank;

1-ballast tank, 11-bottom ballast tank, 12-side ballast tank, 13-baffle, 2-deck, 3-measuring tube, 31-vent, 4-vent, 41-first vent, 42-second vent, 43-third vent, 5-mount, 6-vent, 7-level sensor.

Detailed Description

The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.

The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application.

All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

A ballast tank level detection apparatus according to some embodiments of the present application is described below with reference to fig. 3 and 4.

Referring to fig. 3 and 4, an embodiment of the present application provides a ballast tank 1 liquid level detection apparatus for detecting a liquid level in a ballast tank 1 of a ship, and the ballast tank 1 includes a bottom ballast tank 11 and a side ballast tank 12 which are communicated, a plurality of partitions 13 are provided on an inner ceiling wall of the bottom ballast tank 11 at intervals sequentially along a length direction thereof, the ballast tank 1 liquid level detection apparatus comprising: a measuring pipe 3 and an exhaust pipe 4;

wherein one end of the measuring tube 3 extends into the bottom ballast tank 11; the other end of the measurement pipe 3 protrudes out of the bottom ballast tank 11 and extends in the height direction of the side ballast tank 12 until it is flush with the top of the side ballast tank 12 or higher than the top of the side ballast tank 12;

one end of the exhaust pipe 4 is communicated with a structure of the measuring pipe 3 exposed out of the bottom ballast tank 11, and the other end of the exhaust pipe 4 extends out of the deck 2 which is level with the top of the side ballast tank 12; any of the partition plates 13 is provided with a partition plate hole to form an exhaust passage.

Based on the above-described structure, the bubbles in the water of the bottom ballast tank 11 can be finally discharged from the bottom ballast tank 11 to the side ballast tank 12 through the partition holes on the partition 13, and then discharged from the exhaust port at the top of the side ballast tank 12 (this part is the prior art, and will not be described in detail here), and further will not enter the measuring tube 3, and in addition, even if bubbles exist in the measuring tube 3, the bubbles can be discharged from the exhaust tube 4, so that the rolling of the bubbles in the measuring tube 3 will not be caused, and the accuracy of the liquid level detection is improved.

In this embodiment, it is preferable that the ventilation holes 31 are opened at the height positions of the measuring tube 3 corresponding to the separators 13 as shown in fig. 3 and 4.

According to the above-described structure, even if air bubbles exist in the measuring tube 3, a part of the air bubbles can be discharged into the water in the bottom ballast tank 11 through the air holes 31 and can be discharged through the partition holes in the partition 13, and another part of the air bubbles in the measuring tube 3 can be discharged through the exhaust pipe 4 communicated with the measuring tube 3, so that the air bubbles in the measuring tube 3 are not caused to roll over, and the accuracy of liquid level detection is improved.

Of course, the opening position of the ventilation holes 31 is not limited to the above, and may be located below the partition 13, or the like, so long as the following layout is satisfied: the ventilation holes 31 are provided in the structure of the measuring tube 3 in the bottom ballast tank 11.

In this embodiment, the exhaust pipe 4 is preferably goosenecked as shown in fig. 3.

According to the above-described structure, the outlet end of the gooseneck extends out of the deck 2 along the direction parallel to the deck 2, i.e. along the horizontal direction, so as to avoid the foreign matters entering the exhaust pipe 4 to cause blockage, and finally, the exhaust cannot be normally performed.

Further, preferably, as shown in fig. 3, the exhaust pipe 4 includes a first exhaust pipe 41, a second exhaust pipe 42 and a third exhaust pipe 43 which are sequentially communicated, and the joints of the three are all in smooth arc transition connection;

wherein the first exhaust pipe 41 extends in a direction perpendicular to the height direction of the measurement pipe 3; the second exhaust pipe 42 extends in parallel to the height direction of the measurement pipe 3; the third exhaust pipe 43 extends in an arc-shaped direction and ends towards the deck 2.

Of course, the structure of the exhaust pipe 4 is not limited to the above, and may be an L-shaped pipe, the horizontal pipe of which is communicated with the measurement pipe 3, the vertical pipe of which passes out of the deck 2, or the exhaust pipe 4 is a U-shaped pipe, one end of which is communicated with the measurement pipe 3, and the other end of which passes out of the deck 2.

In this embodiment, preferably, as shown in fig. 3, the deck 2 is provided with a via hole through which part of the structure of the exhaust pipe 4 extends to the outside of the deck 2, and it can be seen that the via hole functions to avoid the exhaust pipe 4.

In this embodiment, the ballast tank 1 level detection device further preferably comprises a mounting 5, as shown in fig. 3, by means of which mounting 5 the exhaust pipe 4 is fixed to the deck 2.

As is clear from the above-described structure, the smooth exhaust pipe 4 is not easily installed and fixed on the deck 2, and thus the installation base 5 is provided, and the installation base 5 functions to install the exhaust pipe 4 on the deck 2.

In this embodiment, as shown in fig. 3, the mounting seat 5 is preferably a rubber sleeve, which is inserted into the through hole or is mounted on the upper surface of the deck 2 by a fastening member, that is, the exhaust pipe 4 may be inserted into the rubber sleeve, which is inserted into the through hole, that is, in interference fit with the through hole, or the rubber sleeve is placed on the upper surface of the deck 2, and the rubber sleeve is connected to the deck 2 by a fastening member such as a screw or a bolt.

Of course, not limited thereto, the mounting seat 5 may be a flange mounted to the upper surface of the deck 2 by fastening members, and further, preferably, the flange is welded to the outer periphery of the exhaust pipe 4, and the flange and the deck 2 may be connected by the aforementioned fastening members such as screws or bolts, facilitating installation and disassembly, and facilitating the later operation and maintenance.

In this embodiment, preferably, as shown in fig. 3, the exhaust pipe 4 communicates with a position of the measurement pipe 3 near the top thereof.

According to the above-described structure, the exhaust pipe 4 is disposed as close to the top of the measurement pipe 3 as possible, so that the length of the exhaust pipe 4 can be greatly reduced while the exhaust is satisfied, and the material investment is reduced, thereby contributing to the cost reduction.

In this embodiment, preferably, as shown in fig. 4, the ballast tank 1 level detection apparatus further includes an electro-pneumatic level sensor 7, an air duct 6, a compressor, a pressure reducing valve, a throttle valve, a controller, and a display screen;

wherein one end of the air duct 6 is communicated with the inside of one side of the bottom ballast tank 11 far away from the side ballast tank 12, and the other end of the air duct 6 is communicated with the gas-electric liquid level sensor 7; the throttle valve is arranged on the air duct 6 and is close to the gas-electric liquid level sensor 7, and the compressor is communicated with the throttle valve through the pressure reducing valve; the controller is respectively connected with the gas-electric liquid level sensor 7, the throttle valve and the display screen in a communication way.

According to the above described structure, the working principle is as follows: the compressed air is regulated to the working pressure of 3 to 3.5 kg through a pressure reducing valve, and is throttled through a throttle valve arranged in the sensor, gas finally escapes from a pipe orifice close to the lower part of the cabin body in a bubble state, at the moment, the pressure in the air duct 6 is almost equal to the hydrostatic pressure in the cabin, so that a sensitive element (pressure sensing diaphragm) of the sensor senses the pressure in the air duct 6, the pressure is converted into a standard electric signal through temperature compensation and linear correction, and then the current signal is converted into liquid level information through a controller and is transmitted to a display screen, thereby facilitating the monitoring of a user.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A ballast tank liquid level detection apparatus for detecting a liquid level in a ballast tank of a ship, and the ballast tank includes a bottom ballast tank and a side ballast tank which are communicated, a plurality of partitions are provided on an inner ceiling wall of the bottom ballast tank at intervals sequentially along a length direction thereof, the ballast tank liquid level detection apparatus comprising: a measuring tube and an exhaust tube;

2. The ballast tank level detecting device according to claim 1, wherein the measuring tube is provided with ventilation holes in a structure located in the bottom ballast tank.

3. The ballast tank liquid level detecting device according to claim 2, wherein the measuring pipe is provided with ventilation holes at a height position corresponding to the partition plate.

4. The ballast tank level detection apparatus according to claim 1, wherein the exhaust pipe is gooseneck-shaped.

5. The ballast tank liquid level detection device according to claim 4, wherein the exhaust pipe comprises a first exhaust pipe, a second exhaust pipe and a third exhaust pipe which are sequentially communicated, and the joints of the three exhaust pipes are in smooth arc transition connection;

6. The ballast tank level detection apparatus of claim 1, wherein the deck is provided with a via through which a portion of the structure of the exhaust pipe extends to the outside of the deck.

7. The ballast tank level detection apparatus of claim 6, further comprising a mounting base by which the exhaust pipe is secured to the deck.

8. The ballast tank level detection apparatus of claim 7, wherein the mounting base is a flange mounted to an upper surface of the deck by a fastening member;

9. The ballast tank level detecting device according to claim 7, wherein said exhaust pipe communicates with a position of said measuring pipe near a top thereof.

10. The ballast tank level detection apparatus according to any one of claims 1 to 9, further comprising a gas-electric level sensor, a gas-guide pipe, a compressor, a pressure reducing valve, a throttle valve, a controller, and a display screen;