CN218975006U - Marine ballast tank liquid level switch prevents false alarm device - Google Patents
Marine ballast tank liquid level switch prevents false alarm device Download PDFInfo
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- CN218975006U CN218975006U CN202222782859.5U CN202222782859U CN218975006U CN 218975006 U CN218975006 U CN 218975006U CN 202222782859 U CN202222782859 U CN 202222782859U CN 218975006 U CN218975006 U CN 218975006U
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- level switch
- liquid level
- false alarm
- ballast tank
- alarm device
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
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- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000009423 ventilation Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 6
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- 238000012544 monitoring process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Level Indicators Using A Float (AREA)
Abstract
The utility model relates to a false alarm prevention device for a marine ballast tank liquid level switch, which structurally comprises a coaming, a top orifice plate, a sawtooth type throttle plate, a filter screen and a float liquid level switch, wherein the float liquid level switch is connected with a ballast bulkhead through a cabin penetrating connecting piece and is fixed in the coaming, the coaming is a box body structure which is spliced around the float liquid level switch and is fixed on the ballast bulkhead, the upper part of the coaming is covered with the top orifice plate, a plurality of holes for ventilation are formed in the top orifice plate, a water inlet channel which extends downwards is formed in the bottom of the coaming along the ballast bulkhead, the sawtooth type throttle plate is arranged in the water inlet channel, and the filter screen is arranged at the end part of the water inlet channel. The utility model has the advantages of less arranged parts, simpler structure and strong operability of field implementation; the materials used by the components are lighter, and are combined by using a welding process, so that the installation is convenient; the size of each part can also be properly adjusted according to the size of the liquid level switch, so that the flexibility is high.
Description
Technical Field
The utility model relates to the technical field of ship manufacturing, in particular to a false alarm preventing device for a ship ballast tank liquid level switch.
Background
The ballast water tank of the ship is a ship tank for placing ballast water and is used for adjusting the gravity center position, the floating state and the stability of the ship, so that the problems of insufficient stability or improper draft caused by oil-water consumption and lifting of the gravity center in the course of sailing of the ship can be solved, wherein the ballast refers to a weight for increasing the stability, and the ship tank for loading the ballast water is the ballast water tank. In the running process of the ship, seawater is directly injected into each ballast water tank from the sea floor gate through the sea water main pipe, and when the liquid level of each ballast water tank is measured by the ballast water system, the ballast water of each ballast water tank is discharged, injected or regulated so as to maintain the proper stability height of the ship and reduce the swing of the ship. However, in normal sailing, due to the change of sea conditions and the change of the carrying capacity of the ship, longitudinal or transverse inclination and swinging of the ship often occur, for example, when the ballast tank is at a high liquid level, the ship is severely swung under the influence of sailing stormy waves, so that the ballast water in the ballast tank is in a moving state, and therefore, the situation of false alarm caused by high liquid level of the ballast tank can be caused.
In the prior art, chinese patent 201922199793.5 discloses a device for preventing false alarm of a float type liquid level alarm, which prevents false alarm caused by vibration generated in the using process of a radiator and liquid level fluctuation generated by water flow impact during water injection of a water injection pipe by arranging a slow flow cotton and welding a notch steel plate on the inner surface of the steel plate. But the scheme is not suitable for high liquid level false alarm monitoring of ship seawater, and has the defects of complex structure and complex operation.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present utility model to overcome the above-mentioned prior art and to provide a false alarm preventing device for a liquid level switch. The utility model improves the accuracy of high-level alarm in the ballast tank and ensures the operation safety of the ship ballast water system.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a marine ballast tank liquid level switch prevents false alarm device, this prevents false alarm device establishes on marine ballast bulkhead, and this prevents false alarm device's structure includes, bounding wall, top orifice plate, sawtooth type orifice plate, filter screen and float liquid level switch, float liquid level switch passes through the cabin penetrating connecting piece and connects the ballast bulkhead and fix in the bounding wall, the bounding wall be around float liquid level switch concatenation and fix the box structure on the ballast bulkhead, the upper portion of bounding wall cover top orifice plate be equipped with a plurality of trompils that are used for ventilative on the top orifice plate, the bottom of bounding wall is equipped with a downwardly extending's inlet channel along the ballast bulkhead, is equipped with in the inlet channel the sawtooth type orifice plate, be equipped with at the tip of inlet channel the filter screen.
Furthermore, the coaming is a rectangular box body structure formed by welding and splicing a plurality of stainless steel plates.
Further, the zigzag throttle plate is a pressure welding stainless steel grating formed by welding zigzag flat steel, and the spacing between adjacent zigzag flat steel on the pressure welding stainless steel grating is smaller than 25mm.
Further, the serrated flat steel is made of TP316L stainless steel.
Further, the filter screen is a 1/4 spherical filter screen type filter.
Further, the float level switch 5 is arranged on the side wall of the bulkhead of the ballast water tank, and the height of the float level switch is 200mm away from the top of the ballast water tank.
Furthermore, the coaming is combined and connected with the top pore plate and the zigzag throttle plate and the filter screen in a welding mode.
Based on the technical scheme, the utility model has the beneficial effects that:
1. the anti-false alarm device for the ship ballast tank liquid level switch is fewer in parts, simple in structure and high in operability.
2. The size of the coaming, the sawtooth-shaped throttle plate, the filter screen, the top pore plate and other components arranged on the false alarm prevention device of the marine ballast tank liquid level switch can be properly adjusted according to the size of the liquid level switch, and the flexibility is high.
3. The stainless steel TP316L material used by the anti-false alarm device of the marine ballast tank liquid level switch is lighter, and is combined by a welding process, so that the anti-false alarm device is convenient to install.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a marine ballast tank level switch false alarm prevention device of the utility model.
Fig. 2 is a side view of a marine ballast tank level switch false alarm prevention device of the utility model.
Fig. 3 is a top view of a marine ballast tank level switch false alarm prevention device of the utility model.
The reference numerals in the figures are: 1-coaming, 2-top orifice plate, 3-saw-tooth throttle plate, 4-filter screen, 5-float liquid level switch, 6-bulkhead
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.
In a marine ballast tank, in order to prevent the surge phenomenon and maintain the alarm function of a liquid level switch, the utility model designs a special false alarm preventing device for the liquid level switch on the marine ballast tank, which is arranged on a bulkhead of the marine ballast tank.
As shown in fig. 1-3, the structure of the false alarm device comprises a coaming 1, a top orifice plate 2, a zigzag throttle plate 3, a filter screen 4 and a float liquid level switch 5, wherein the float liquid level switch 5 is connected with a ballast bulkhead through a cabin penetrating connecting piece and is fixed in the coaming 1, the coaming 1 is a box structure spliced around the float liquid level switch 5 and fixed on the ballast bulkhead, the upper part of the coaming 1 is covered with the top orifice plate 2, a plurality of holes for ventilation are formed in the top orifice plate 2, a water inlet channel extending downwards is formed in the bottom of the coaming 1 along the ballast bulkhead, the zigzag throttle plate 3 is arranged in the water inlet channel, and the filter screen 4 is arranged at the end part of the water inlet channel.
The device is through the trompil ventilation function of top orifice plate 2, make the unable purpose of releasing fast of bounding wall 1 internal pressure to reach the purpose that prevents liquid level switch false alarm, the effect of top orifice plate 2 makes there is a process that slowly reduces pressure in the box, but rise the liquid level and be comparatively slow when beating ballast water generally, the sawtooth type throttle plate does not have the separation effect to the lower fluid of energy, and utilizes the ventilation function of top orifice plate 2, the alarming function of float liquid level switch 5 can not receive the influence of anti-false alarm device.
The serrated throttle plate 3 of the device has the function of gradually reducing the energy of fluid in a mode of reducing the area of an inlet and enlarging the area of an outlet, achieving the purpose of throttling and preventing splashing liquid from entering the coaming to influence the function of the float type liquid level switch. The effect of water throttling too fast to flow is achieved through the zigzag throttle plate 3, the fast fluid energy consumption can not reach in the bounding wall 1 through throttling layer by layer, because the quality of water in the ballast tank is relatively poor, in order to prevent big granule rubbish from blocking the zigzag throttle plate 3, install a filter screen 4 in front of the zigzag throttle plate 3, filter the liquid that gets into the zigzag throttle plate 3, when the fluid in the ballast tank is with high energy because of boats and ships rocking, because the higher because of initial velocity, the fluid that gets into fast can extrude the air in the box, and because there is upper portion top orifice plate 2, the extrusion air discharge rate can greatly reduced in the box, and give the fluid that gets into the bounding wall a pressure, make it be difficult to get into the box.
The anti-false alarm device for the ship ballast tank liquid level switch has the advantages of fewer parts, simple structure, strong operability, proper adjustment of the sizes of the parts according to the size of the liquid level switch, strong flexibility, light materials, combination of welding technology and convenient installation.
While the foregoing embodiments have been described in detail and with reference to the present utility model, it will be apparent to one skilled in the art that modifications and improvements can be made based on the disclosure without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a marine ballast tank liquid level switch prevents false alarm device, this prevent false alarm device establishes on marine ballast bulkhead, its characterized in that, this prevent false alarm device's structure includes bounding wall (1), top orifice (2), sawtooth type orifice plate (3), filter screen (4) and float liquid level switch (5), float liquid level switch (5) are connected the ballast bulkhead through the cabin penetrating connecting piece and are fixed in bounding wall (1), bounding wall (1) are around the concatenation of float liquid level switch (5) and fix the box structure on the ballast bulkhead, the upper portion of bounding wall (1) cover have top orifice plate (2) be equipped with a plurality of trompils that are used for breathing freely on top orifice plate (2), the bottom of bounding wall (1) is equipped with a downwardly extending's inlet channel along the ballast bulkhead, is equipped with in the inlet channel sawtooth type orifice plate (3), be equipped with in the tip of inlet channel filter screen (4).
2. The false alarm prevention device for a ship ballast tank liquid level switch according to claim 1, wherein the coaming (1) is a rectangular box structure formed by welding and splicing a plurality of stainless steel plates.
3. The false alarm device of a ship ballast tank liquid level switch according to claim 1, wherein the serrated throttle plate (3) is a pressure welded stainless steel grating formed by welding serrated flat steel, and the distance between adjacent serrated flat steel on the pressure welded stainless steel grating is smaller than 25mm.
4. A marine ballast tank level switch false alarm device as claimed in claim 3, wherein the serrated flat steel is TP316L stainless steel.
5. The false alarm device of a ship ballast tank level switch according to claim 1, characterized in that the filter screen (4) is a 1/4 spherical filter screen type filter.
6. The anti-false alarm device of a ship ballast tank level switch according to claim 1, characterized in that the float level switch (5) is arranged on the bulkhead of the ballast tank by a through-tank connector, the height of which is 200mm from the top of the ballast tank.
7. The anti-false alarm device of the marine ballast tank liquid level switch according to claim 1, wherein the coaming (1) is connected with the top orifice plate (2) and the zigzag throttle plate (3) is connected with the filter screen (4) in a welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222782859.5U CN218975006U (en) | 2022-10-21 | 2022-10-21 | Marine ballast tank liquid level switch prevents false alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222782859.5U CN218975006U (en) | 2022-10-21 | 2022-10-21 | Marine ballast tank liquid level switch prevents false alarm device |
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| Publication Number | Publication Date |
|---|---|
| CN218975006U true CN218975006U (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222782859.5U Active CN218975006U (en) | 2022-10-21 | 2022-10-21 | Marine ballast tank liquid level switch prevents false alarm device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117756057A (en) * | 2023-11-20 | 2024-03-26 | 北京航宇高科氢能源科技有限公司 | PEM water electrolysis high-pressure water-gas separation device |
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2022
- 2022-10-21 CN CN202222782859.5U patent/CN218975006U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117756057A (en) * | 2023-11-20 | 2024-03-26 | 北京航宇高科氢能源科技有限公司 | PEM water electrolysis high-pressure water-gas separation device |
| CN117756057B (en) * | 2023-11-20 | 2024-10-18 | 北京航宇高科氢能源科技有限公司 | PEM water electrolysis high-pressure water-gas separation device |
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