CN113654618A - Installation structure of cabin bottom liquid level sensor - Google Patents
Installation structure of cabin bottom liquid level sensor Download PDFInfo
- Publication number
- CN113654618A CN113654618A CN202111111710.8A CN202111111710A CN113654618A CN 113654618 A CN113654618 A CN 113654618A CN 202111111710 A CN202111111710 A CN 202111111710A CN 113654618 A CN113654618 A CN 113654618A
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- Prior art keywords
- liquid level
- level sensor
- measuring
- height
- filter
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- 239000007788 liquid Substances 0.000 title claims abstract description 98
- 238000009434 installation Methods 0.000 title description 11
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 9
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention relates to the technical field of ship equipment, and discloses a cabin bottom liquid level sensor mounting structure which comprises a cabin bottom plate and a liquid level detection device, wherein the cabin bottom plate comprises a main body plate and a mounting plate higher than the main body plate, the liquid level detection device is mounted on the mounting plate, the liquid level detection device comprises a measuring pipe, a valve, a connecting pipe and a liquid level sensor, the measuring pipe is mounted on the mounting plate, a measuring hole is formed in a pipe section of the measuring pipe, which is located inside a cabin, the valve is connected between the measuring pipe and the connecting pipe, the liquid level sensor is connected to the connecting pipe, and the height of the liquid level sensor is flush with that of the main body plate. Liquid level sensor is when detecting the liquid level, and the liquid level height that liquid level sensor detected is the liquid height of the upside of main part board promptly, guarantees liquid level sensor and the high parallel and level of main part board through the mode that sets up mounting panel and control liquid level sensor's the height of arranging to eliminated because the measuring error that the difference in height produced, improved and detected the precision.
Description
Technical Field
The invention relates to the technical field of ship equipment, in particular to a cabin bottom liquid level sensor mounting structure.
Background
Liquid level remote sensors are common devices on ships and are commonly used for real-time monitoring of liquid contents in liquid tanks, including domestic water, ballast water and the like. When the liquid level sensor of a ship is arranged, the arrangement is generally divided into side installation, top side installation and top installation, wherein the side installation is to install the liquid level sensor on the side wall of a cabin, and the installation mode is convenient for maintaining/replacing the sensor but inconvenient for maintaining/replacing a valve; top side loading and top loading typically require sensors to be positioned deep into the tank, at the point where the top wall or side walls of the tank join the top wall, typically the owner will prefer to be top side loading or top loading,
the liquid level sensor needs to transmit data to a control center of the ship when detecting the liquid level, and therefore a cable needs to be laid to be connected with the liquid level sensor to transmit signals. The existing side-mounted, top-side mounted and top-mounted mounting modes are generally only suitable for the situation that the side part or the top part of the measuring cabin is provided with a dry area, and the dry area provides mounting space for laying cables. But if the measuring tank is all around and the upper portion is the liquid tank, when adopting above-mentioned mounting means, the cable need pass other liquid tanks, need set up waterproof packing box on the liquid tank this moment, and because the cable passes other liquid tanks, it is very inconvenient to change.
If the liquid level telemetering sensor is directly installed at the bottom of the measuring cabin in the existing liquid level sensor installation mode, the liquid level sensor is usually a pressure sensor, the liquid capacity is judged by utilizing the relation between the liquid pressure and the liquid height, and due to the height difference between the installation height of the liquid level sensor and the cabin bottom, errors can occur in the measuring result, and the accuracy of the detected result is influenced.
Disclosure of Invention
The purpose of the invention is: the utility model provides a cabin bottom level sensor mounting structure to when solving among the prior art measurement cabin all around and upper portion and be the tank, the measuring result can the error appear when level sensor installs in the bottom, influences the problem that detects the precision.
In order to achieve the purpose, the invention provides a cabin bottom liquid level sensor mounting structure which comprises a cabin bottom plate and a liquid level detection device, wherein the cabin bottom plate comprises a main body plate and a mounting plate higher than the main body plate, the liquid level detection device is mounted on the mounting plate, the liquid level detection device comprises a measuring pipe, a valve, a connecting pipe and a liquid level sensor, the measuring pipe is mounted on the mounting plate, a measuring hole is formed in a pipe section of the measuring pipe, which is located inside a cabin, the valve is connected between the measuring pipe and the connecting pipe, the liquid level sensor is connected onto the connecting pipe, and the height of the liquid level sensor is flush with the height of the main body plate.
Preferably, a filter element is further arranged on the liquid level detection device between the measuring hole and the liquid level sensor, and the filter element is used for filtering silt in the cabin.
Preferably, the filter element comprises a filter screen arranged outside the measuring orifice and/or a filter arranged between the valve and the connecting tube.
Preferably, the mesh pore size of the filter screen is larger than that of the filter.
Preferably, the filter is a Y-shaped filter.
Preferably, the top end of the measuring pipe is provided with a blocking structure for blocking silt, and the height of the blocking structure is higher than that of the measuring hole.
Preferably, the top end of the measuring tube is integrally formed with a bend bent toward the mounting plate, the bend forming the blocking structure.
Preferably, a sealing plate is arranged at the top end of the measuring tube, the sealing plate forming the blocking structure.
Preferably, the connecting pipe is a three-way pipe, the liquid level sensor is connected to a branch of the three-way pipe, and a plug is further arranged at the bottom end of the three-way pipe.
Compared with the prior art, the installation structure of the liquid level sensor at the bottom of the cabin has the beneficial effects that: arrange main part board and mounting panel on the cabin bottom plate, the height that highly is higher than the main part board of mounting panel, liquid level detection device's level sensor and the high parallel and level of main part board, level sensor is when detecting the liquid level, and the liquid level height that level sensor detected is the liquid height of the upside of main part board promptly, guarantees level sensor and the high parallel and level of main part board through the mode of setting up the mounting panel and controlling level sensor's the height of arranging to eliminate the measuring error who produces because the difference in height, improved and detected the precision.
Drawings
FIG. 1 is a schematic structural view of a tank bottom liquid level sensor mounting structure of the present invention;
FIG. 2 is a schematic view of the structure of a measurement pipe of the tank bottom level sensor mounting structure of FIG. 1;
fig. 3 is an enlarged schematic view of the measurement pipe of fig. 2 at a.
In the figure, 1, a cabin floor; 11. a main body plate; 12. mounting a plate; 2. a measurement tube; 21. measuring a hole; 22. bending the pipe; 3. a valve; 4. a connecting pipe; 5. a liquid level sensor; 6. a base plate; 7. a flange; 8. a filter screen; 9. a filter; 10. and (7) a plug.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, the preferred embodiment of the installation structure of the bilge level sensor of the present invention includes a bilge floor 1 and a level detecting device, the level detecting device is installed on the bilge floor 1, and the level detecting device detects the level of liquid in the bilge.
The bilge plate 1 comprises a main body plate 11 and a mounting plate 12, wherein the height of the mounting plate 12 is higher than that of the main body plate 11, and the mounting plate 12 and the main body plate 11 can adopt an integral structure or a welding forming structure. The liquid level detection device is fixedly arranged on the mounting plate 12, the mounting plate 12 is utilized to provide mounting space for the liquid level detection device, and the mounting height of the liquid level detection device is improved.
Liquid level detection device is including surveying buret 2, valve 3, connecting pipe 4 and level sensor 5, surveys 2 erection of buret and fixes on mounting panel 12, surveyed and seted up measuring hole 21 on surveying 2 being located the inside pipeline section of cabin, and valve 3 is connected between surveying buret 2 and connecting pipe 4, and level sensor 5 connects on connecting pipe 4, level sensor 5's the height and the high parallel and level of main part board 11.
The measuring pipe 2 is welded and fixed on the mounting plate 12, and the measuring pipe 2 is used for isolating the silt accumulation sensor probe at the bottom of the liquid tank. Welded fastening has bottom plate 6 on mounting panel 12, through bolt fixedly connected with flange 7 on bottom plate 6, surveys buret 2, bottom plate 6 and the equal coaxial arrangement of flange 7, and three's central line coincidence promptly has the internal thread to process in the flange 7, and in this embodiment, valve 3 is the ball valve, and valve 3's both ends all are provided with the external screw thread, and the assembly of 3 screw threads of valve is on flange 7, threaded connection between valve 3 and the connecting pipe 4.
The measuring holes 21 are arranged on the measuring pipe 2 at a certain height from the mounting plate 12, the specific height is set according to the requirement, and the measuring holes 21 are arranged at intervals along the circumferential direction of the measuring pipe 2; in the present embodiment, the height between the measurement holes 21 and the mounting plate 12 is 100mm, and the number of the measurement holes 21 may be determined according to the hole diameter. When measuring the liquid level, valve 3 is in normally open state, and liquid pressure transmits to level sensor 5 through measuring hole 21, valve 3, and level sensor 5 is pressure sensor, turns into the liquid level height according to the corresponding relation between pressure and the liquid level to carry out real-time supervision to the liquid level.
Because level sensor 5 of liquid level detection device and main part board 11 highly parallel and level, level sensor 5 is when detecting the liquid level, and the liquid level height that level sensor 5 detected is the liquid height of the upside of main part board 11 promptly, guarantees level sensor 5 and the high parallel and level of main part board 11 through the mode that sets up mounting panel 12 and control level sensor 5's the height of arranging to eliminated because the measuring error that the difference in height produced, improved and detected the precision.
Preferably, a filter element is arranged on the liquid level detection device between the measuring hole 21 and the liquid level sensor 5, and the filter element is used for filtering silt in the cabin. The bottom in cabin can deposit silt usually, and silt can increase the actual pressure to level sensor 5 after getting into connecting pipe 4 through measuring orifice 21 to increase level sensor 5's measuring error, can filter silt through filtering, thereby improve and detect the precision.
Preferably, the filter element comprises a filter screen 8 arranged outside the measuring orifice 21 and/or a filter 9 arranged between the valve 3 and the connecting tube 4. According to the silt amount in different cabins, the liquid level detection device can be only provided with one of the filter screen 8 and the filter 9, and can also be simultaneously provided with the filter screen 8 and the filter 9, so that the filtering efficiency is increased.
Preferably, the mesh aperture of filter screen 8 is greater than the mesh aperture of filter 9, and when filter screen 8 and filter 9 arranged simultaneously, the two filtered as the bilayer, can increase the mesh density of filter 9 through reducing the mesh aperture of filter 9, carries out the layering filtration to silt, filters the silt of different particle sizes respectively.
Preferably, the filter 9 is a Y-shaped filter. The Y-shaped filter is arranged between the valve 3 and the connecting pipe 4, the filtering efficiency of the Y-shaped filter is high, and silt is stored in the branch pipe of the Y-shaped filter, so that the filtered silt is convenient to clean. After the liquid level detection device is used for a period of time, crews can clean silt through the Y-shaped filter, and detection precision is improved.
Preferably, the top end of the measuring tube 2 is provided with a blocking structure for blocking silt, the height of which is higher than the height of the measuring hole 21. The blocking structure can prevent silt from directly entering the liquid level detection device from the top of the measuring pipe 2, and measurement errors are reduced.
Preferably, the top end of the measuring tube 2 is integrally formed with a bend 22 which is bent towards the mounting plate 12, the bend 22 forming a stop. Elbow 22 is mounted toward mounting plate 12, i.e., elbow 22 opens downwardly, and silt falls by gravity and does not enter elbow 22, thereby providing a blocking effect.
In other embodiments, a sealing plate is arranged at the top end of the measuring tube 2, the sealing plate is welded to the measuring tube 2, and the sealing plate forms a blocking structure. The mode processing of shrouding is convenient, and the shutoff is effectual.
Preferably, the connecting pipe 4 is a three-way pipe, the liquid level sensor 5 is connected to a branch of the three-way pipe, and a plug 10 is further arranged at the bottom end of the three-way pipe. The top end of the three-way pipe is connected with a filter 9, a liquid level sensor 5 is installed on the side wall of the three-way pipe, and a plug 10 is in threaded connection with the three-way pipe. When the liquid level is detected, the valve 3 is normally opened, and the liquid pressure is transmitted to the liquid level sensor 5; when the silt that gets into connecting pipe 4 needs the clearance, the crewman can close valve 3 earlier and open end cap 10 again to the silt that gets into in the connecting pipe 4 of discharging reduces the interference to level sensor 5, improves measurement accuracy.
To sum up, the embodiment of the invention provides a cabin bottom liquid level sensor mounting structure, wherein a main body plate and a mounting plate are arranged on a cabin bottom plate, the height of the mounting plate is higher than that of the main body plate, a liquid level sensor of a liquid level detection device is flush with the height of the main body plate, when the liquid level sensor detects the liquid level, the liquid level height detected by the liquid level sensor is the liquid height of the upper side of the main body plate, and the liquid level sensor is ensured to be flush with the height of the main body plate by arranging the mounting plate and controlling the arrangement height of the liquid level sensor, so that the measurement error caused by the height difference is eliminated, and the detection precision is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a cabin bottom level sensor mounting structure, a serial communication port, including cabin bottom plate and liquid level detection device, the cabin bottom plate includes the main part board and highly is higher than the mounting panel of main part board, liquid level detection device installs on the mounting panel, liquid level detection device is including surveying buret, valve, connecting pipe and level sensor, survey the buret and install on the mounting panel, survey and seted up the measuring hole on the inside pipeline section of cabin that is located of buret, the valve is connected survey buret with between the connecting pipe, level sensor connects on the connecting pipe, level sensor's height with the high parallel and level of main part board.
2. The bottom tank liquid level sensor mounting structure according to claim 1, wherein a filter member for filtering silt in the tank is further disposed between the measuring hole and the liquid level sensor on the liquid level detection device.
3. The bilge level sensor mounting structure according to claim 2, wherein the filter member includes a filter net disposed outside the measuring hole and/or a filter disposed between the valve and the connecting pipe.
4. The cabin bottom liquid level sensor mounting structure according to claim 3, wherein a mesh pore size of the filter net is larger than a mesh pore size of the filter.
5. The bilge level sensor mounting structure according to claim 3, wherein said filter is a Y-shaped filter.
6. The tank bottom liquid level sensor mounting structure according to any one of claims 1 to 5, wherein a blocking structure for blocking sediment is provided at a top end of the measuring pipe, and a height of the blocking structure is higher than a height of the measuring hole.
7. The bilge level sensor mounting structure of claim 6, wherein a tip end of said measuring tube is integrally formed with a bent end bent toward said mounting plate, said bent end forming said blocking structure.
8. The bilge level sensor mounting structure of claim 6, wherein a sealing plate is arranged at a top end of the measuring tube, the sealing plate forming the blocking structure.
9. The cabin bottom liquid level sensor mounting structure according to any one of claims 1 to 5, wherein the connecting pipe is a three-way pipe, the liquid level sensor is connected to a branch of the three-way pipe, and a bottom end of the three-way pipe is further provided with a plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111710.8A CN113654618A (en) | 2021-09-22 | 2021-09-22 | Installation structure of cabin bottom liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111710.8A CN113654618A (en) | 2021-09-22 | 2021-09-22 | Installation structure of cabin bottom liquid level sensor |
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| Publication Number | Publication Date |
|---|---|
| CN113654618A true CN113654618A (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111111710.8A Pending CN113654618A (en) | 2021-09-22 | 2021-09-22 | Installation structure of cabin bottom liquid level sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116007707A (en) * | 2022-12-12 | 2023-04-25 | 武汉新烽光电股份有限公司 | Method and device for measuring water level |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB218932A (en) * | 1924-01-14 | 1924-07-17 | Raoul Edouard Badin | Means for the distant indication of the level of the liquid in a reservoir |
| US5072617A (en) * | 1990-10-30 | 1991-12-17 | The United States Of America As Represented By The United States Department Of Energy | Fiber-optic liquid level sensor |
| KR20000061572A (en) * | 1999-03-27 | 2000-10-25 | 윤종용 | A apparatus for water level sensing of washing machine |
| DE102007029147A1 (en) * | 2007-06-25 | 2009-01-08 | Robert Bosch Gmbh | Pressure sensor for detecting liquid level in tank of e.g. lorry, has pressure-sensitive region surrounded by housing that has adjustment hole producing hydraulic connection between interior of housing and tank |
| DE102010062881A1 (en) * | 2010-12-13 | 2012-06-14 | Robert Bosch Gmbh | Tank assembly for detecting fuel level in fuel storage reservoir provided at internal combustion engine, has evaluation unit that detects fuel level in fuel storage container based on pressure detection result of pressure sensor |
| CN106352940A (en) * | 2016-08-26 | 2017-01-25 | 广东建成机械设备有限公司 | An anti-clogging device for lower liquid level |
| CN212173298U (en) * | 2020-04-16 | 2020-12-18 | 普瑞特机械制造股份有限公司 | Liquid level detection device and container, wine storage equipment and wine making equipment provided with same |
| IL273837B (en) * | 2020-04-06 | 2021-01-31 | Hayman Meir | Device and method for measuring liquid level in a container by a protected pressure sensor |
-
2021
- 2021-09-22 CN CN202111111710.8A patent/CN113654618A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB218932A (en) * | 1924-01-14 | 1924-07-17 | Raoul Edouard Badin | Means for the distant indication of the level of the liquid in a reservoir |
| US5072617A (en) * | 1990-10-30 | 1991-12-17 | The United States Of America As Represented By The United States Department Of Energy | Fiber-optic liquid level sensor |
| KR20000061572A (en) * | 1999-03-27 | 2000-10-25 | 윤종용 | A apparatus for water level sensing of washing machine |
| DE102007029147A1 (en) * | 2007-06-25 | 2009-01-08 | Robert Bosch Gmbh | Pressure sensor for detecting liquid level in tank of e.g. lorry, has pressure-sensitive region surrounded by housing that has adjustment hole producing hydraulic connection between interior of housing and tank |
| DE102010062881A1 (en) * | 2010-12-13 | 2012-06-14 | Robert Bosch Gmbh | Tank assembly for detecting fuel level in fuel storage reservoir provided at internal combustion engine, has evaluation unit that detects fuel level in fuel storage container based on pressure detection result of pressure sensor |
| CN106352940A (en) * | 2016-08-26 | 2017-01-25 | 广东建成机械设备有限公司 | An anti-clogging device for lower liquid level |
| IL273837B (en) * | 2020-04-06 | 2021-01-31 | Hayman Meir | Device and method for measuring liquid level in a container by a protected pressure sensor |
| CN212173298U (en) * | 2020-04-16 | 2020-12-18 | 普瑞特机械制造股份有限公司 | Liquid level detection device and container, wine storage equipment and wine making equipment provided with same |
Non-Patent Citations (1)
| Title |
|---|
| 赵负图: "《国内外最新常用传感器和敏感元器件性能数据手册》", 辽宁科学技术出版社, pages: 258 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116007707A (en) * | 2022-12-12 | 2023-04-25 | 武汉新烽光电股份有限公司 | Method and device for measuring water level |
| CN116007707B (en) * | 2022-12-12 | 2024-06-11 | 武汉新烽光电股份有限公司 | Method and device for measuring water level |
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