CN109204709B - Leakage liquid collecting device of cargo tank - Google Patents
Leakage liquid collecting device of cargo tank Download PDFInfo
- Publication number
- CN109204709B CN109204709B CN201811307400.1A CN201811307400A CN109204709B CN 109204709 B CN109204709 B CN 109204709B CN 201811307400 A CN201811307400 A CN 201811307400A CN 109204709 B CN109204709 B CN 109204709B
- Authority
- CN
- China
- Prior art keywords
- liquid
- cargo tank
- collecting container
- liquid collecting
- leakage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007788 liquid Substances 0.000 title claims abstract description 169
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 10
- 239000002023 wood Substances 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
- B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
- B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a leakage liquid collecting device for a cargo tank, in which, if leakage occurs in the cargo tank, the leaked liquid flows into a leakage path and is collected at a position at the bottom of the leakage path, and then flows from a liquid guide tube into a liquid collecting container, and after flowing from the liquid guide tube onto a honeycomb panel, the leaked liquid is vaporized by holes distributed on the honeycomb panel, and part of the vaporized liquid is discharged from the mouth of the liquid collecting container into a discharge path after being vaporized by the honeycomb panel, and the other part of the vaporized liquid passes through the holes on the honeycomb panel and flows to the lower part of the liquid collecting container. In this way, the liquid collecting container can bear the requirement of setting the leakage time without great design because part of leakage liquid is vaporized and discharged into the discharging channel. Therefore, the leakage liquid collecting device of the liquid cargo tank can conveniently collect liquid leaked from the liquid cargo tank, and is simple in structure and low in cost.
Description
Technical Field
The invention relates to a leakage liquid collecting device of a liquid cargo tank.
Background
The liquefied gas ship is used for transporting liquefied gas cargoes, the temperature of the liquefied gas is very low, if the liquefied gas leaks to the ship body in the transportation process, the temperature of a local area of the ship body is reduced to influence the structural strength safety of the ship body, and the liquefied gas ship is a dangerous situation when running on the sea. Therefore, it is necessary to properly store the leaked liquid, and in general, a container storing the leaked liquid needs to be capable of storing the leaked liquid for 15 days or more, which makes the design of the storage container relatively large. In practice, the liquefied gas ship rarely leaks, and the storage container for preventing leakage of liquid is only a preventive measure, and if the container for storing leaked liquid is relatively large, a large space is occupied to cause waste, and the cost of the storage container itself is relatively high.
Disclosure of Invention
In view of the above-described drawbacks of the prior art, an object of the present invention is to provide a leaking liquid collecting apparatus of a cargo tank, which can collect liquid leaking from the cargo tank conveniently, and which is simple in structure and low in cost.
In order to achieve the above purpose, the invention provides a leakage liquid collecting device of a cargo tank, which adopts the following technical scheme: the leakage liquid collecting device of the cargo tank is characterized in that an insulation layer is arranged on the outer wall of the cargo tank, a gap is formed between the outer wall of the cargo tank and the insulation layer to form a leakage channel, and a gap is formed between the outer wall of the insulation layer and the inner wall of the ship body to form a dispersion channel; a liquid collecting container is arranged below the heat preservation layer at the bottom of the liquid cargo tank, a liquid guide pipe penetrates through the heat preservation layer at the bottom of the liquid cargo tank, the upper end of the liquid guide pipe is communicated with the leakage channel, the lower end of the liquid guide pipe is inserted into the liquid collecting container from the opening part of the liquid collecting container, the inner cavity of the liquid collecting container is communicated with the drainage channel through the opening part of the liquid collecting container, and a honeycomb plate is arranged below the liquid guide pipe; the liquid flowing out of the liquid guide tube flows onto the honeycomb panel, one part of the liquid is discharged from the mouth of the liquid collecting container into the discharging channel after being vaporized by the honeycomb panel, and the other part of the liquid flows to the lower part of the liquid collecting container through the holes in the honeycomb panel.
Preferably, a circle of baffle plate protruding upwards is arranged on the edge of the opening part of the liquid collecting container.
Preferably, a plurality of diamond-shaped or round holes are arranged on the honeycomb plate.
Preferably, the exhaust channel is connected with an air extracting device.
Preferably, the liquid collecting container comprises an upper shell and a lower shell, and the honeycomb panel is sandwiched between a lower edge of the upper shell and an upper edge of the lower shell.
More preferably, the inner wall of the lower shell cover is coated with a heat insulation material.
More preferably, the bottom of the lower hull is supported at the bottom of the hull by a first laminate wood.
More preferably, a second laminated wood is arranged between the upper edge opening of the lower shell cover and the lower surface of the honeycomb plate.
As described above, the leakage liquid collecting device of the cargo tank according to the present invention has the following advantageous effects: in a leakage liquid collecting apparatus of a cargo tank of the present invention, if a leakage occurs in the cargo tank, the leaked liquid flows into a leakage path and is collected at a position at the bottom of the leakage path, and then flows from a liquid guide pipe into a liquid collecting container, after flowing from the liquid guide pipe onto a honeycomb panel, the liquid vaporization is promoted by holes distributed on the honeycomb panel, a part of the liquid is vaporized by the honeycomb panel and then discharged from the mouth of the liquid collecting container into a discharge path, and another part of the liquid passes through the holes on the honeycomb panel and flows to the lower part of the liquid collecting container. In this way, the liquid collecting container can bear the requirement of setting the leakage time without great design because part of leakage liquid is vaporized and discharged into the discharging channel. Therefore, the leakage liquid collecting device of the liquid cargo tank can conveniently collect liquid leaked from the liquid cargo tank, and is simple in structure and low in cost.
Drawings
Fig. 1 is a schematic cross-sectional view showing a leakage liquid collecting apparatus of a cargo tank according to the present invention.
Fig. 2 is an enlarged schematic view of the structure at C in fig. 1.
Fig. 3 shows a schematic diagram of the distribution of the liquid collecting container at the bottom of the cargo tank.
Fig. 4 shows a schematic view of a honeycomb panel and its connection structure.
Description of element reference numerals
1. Ship body
2. Cargo tank
3. Thermal insulation layer
4. Leakage path
5. Liquid guiding tube
6. Liquid storage container
61. Baffle plate
62. Bolt
63. First laminated wood
64. Thermal insulation material
65. Lower shell cover
66. Honeycomb plate
67. Elbow support plate
68. Second laminated wood
69. Upper casing cover
7. Discharging channel
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
In the liquefied gas carrier, the cargo tank 2 is an independent tank body arranged in the ship body 1, and the outer wall of the cargo tank 2 is provided with a heat preservation layer 3 so as to prevent the low-temperature liquid in the cargo tank 2 from reducing the temperature of the ship body 1 and affecting the structural strength safety of the ship body 1.
As shown in fig. 1 and 2, the present invention provides a leakage liquid collecting device of a cargo tank, wherein an insulation layer 3 is arranged on the outer wall of the cargo tank 2, a gap is formed between the outer wall of the cargo tank 2 and the insulation layer 3 to form a leakage channel 4, and a gap is formed between the outer wall of the insulation layer 3 and the inner wall of a ship body 1 to form a dispersion channel 7; a liquid collecting container 6 is arranged below the heat preservation layer 3 at the bottom of the liquid cargo tank 2, a liquid guide pipe 5 is penetrated in the heat preservation layer 3 at the bottom of the liquid cargo tank 2, the upper end of the liquid guide pipe 5 is communicated with the leakage channel 4, the lower end of the liquid guide pipe 5 is inserted into the liquid collecting container 6 from the opening part of the liquid collecting container 6, the inner cavity of the liquid collecting container 6 is communicated with the drainage channel 7 through the opening part of the liquid collecting container 6, and a honeycomb plate 66 is arranged below the liquid guide pipe 5; the liquid flowing out of the liquid guide tube 5 flows onto the honeycomb panel 66, and after being vaporized by the honeycomb panel 66, a part is discharged from the mouth of the liquid collecting container 6 into the discharge passage 7, and another part flows to the lower portion of the liquid collecting container 6 through the holes in the honeycomb panel 66.
In a leakage liquid collecting apparatus of a cargo tank of the present invention, if leakage occurs in the cargo tank 2, the leaked liquid flows into the leakage path 4 and is collected at the bottom of the leakage path 4, then flows from the liquid guide tube 5 into the liquid collecting container 6, after flowing from the liquid guide tube 5 onto the honeycomb panel 66, the leaked liquid is distributed on the honeycomb panel 66 and easily vaporized by flowing down in a spray shape through the holes on the honeycomb panel 66, and therefore, the distributed holes on the honeycomb panel 66 promote vaporization of the liquid, a part of the vaporized liquid is discharged from the mouth of the liquid collecting container 6 into the discharge path 7 after being vaporized by the honeycomb panel 66, and another part of the vaporized liquid passes through the holes on the honeycomb panel 66 and flows to the lower part of the liquid collecting container 6. The honeycomb plate 66 also reduces the liquid in the lower portion of the liquid collecting container 6 from splashing upward and splashing out of the mouth of the liquid collecting container 6 when the ship bumps. Since part of the leaked liquid is vaporized and discharged into the discharge passage 7, the liquid collecting container 6 can withstand the set leakage time without requiring a large design. Therefore, the leakage liquid collecting device of the liquid cargo tank can conveniently collect liquid leaked from the liquid cargo tank 2, and is simple in structure and low in cost.
In order to prevent the liquid leaking into the liquid collecting container 6 from flowing out of the mouth of the liquid collecting container 6, a ring of baffle plates 61 protruding upward are provided at the edge of the mouth of the liquid collecting container 6, and the baffle plates 61 are formed in a tubular structure around the mouth of the liquid collecting container 6. Thus, the mouth of the liquid collecting container 6 has a longer passage with a smaller size, and the baffle 61 can block the liquid splashed by jolts so that the liquid cannot flow out. This prevents the cryogenic liquid from flowing onto the hull 1 and affecting the structural strength safety of the hull 1.
In a leaked liquid collecting apparatus for a cargo tank according to the present invention, the liquid collecting container 6 is configured to contain leaked liquid, and as a preferred embodiment, the liquid collecting container 6 includes an upper housing 69 and a lower housing 65 as shown in fig. 2, the upper housing 69 has an elliptical horizontal cross section, so that the inner wall of the upper housing 69 is smooth, and the liquid in the liquid collecting container 6 is not easily agitated when a ship bumps. The bottom of the lower housing 65 has a planar structure, and the wall surface in the middle of the lower housing 65 has an arc-shaped curved surface, which is helpful for assembly and expansion of storage capacity. The bottom of the lower hull 65 is supported at the bottom of the hull 1 by the first laminated wood 63. In this way, the liquid collecting container 6 is not in direct contact with the structure of the ship body 1, so that the phenomenon that the low-temperature liquid in the liquid collecting container 6 reduces the temperature of the structure of the ship body 1 to influence the structural strength safety of the ship body 1 is avoided, and the structure of the ship body 1 is effectively protected in a controllable temperature range. As shown in fig. 2, as a preferred embodiment, the inner wall of the lower shell 65 is coated with a heat insulating material 64. In this way, the low-temperature liquid in the liquid collecting container 6 is not likely to absorb the heat of the hull 1, and the temperature of the hull 1 is reduced to an excessively low level. As shown in fig. 2, the honeycomb panel 66 is sandwiched between the lower edge opening of the upper casing 69 and the upper edge opening of the lower casing 65, a second laminated wood 68 is provided between the upper edge opening of the lower casing 65 and the lower surface of the honeycomb panel 66, the lower edge opening of the upper casing 69, the honeycomb panel 66, the second laminated wood 68 and the upper edge opening of the lower casing 65 are fixed together by bolts 62, the lower casing 65 is provided with a support toggle plate 67, and the bolts 62 are arranged on the left and right sides of the support toggle plate 67.
According to the requirements of the international bulk cargo transportation liquefied gas ship construction and equipment CODE (IGC CODE), in order to satisfy the running safety of the ship on the sea, the liquid collecting container 6 has a sufficient volume to be able to accommodate the leaked liquid for 15 days or more. As shown in fig. 3, the liquid collecting containers 6 are provided at four corner positions of the bottom of each cargo tank 2 so that leaked liquid can be sufficiently collected by the liquid collecting containers 6, and each liquid collecting container 6 can be designed to be relatively small in size.
In the solution of the present invention, since the honeycomb panel 66 capable of promoting the liquefaction of the liquid is provided in the liquid collecting container 6, as shown in fig. 4, a plurality of holes are provided in the honeycomb panel 66, and the leaked liquid is dispersed by the honeycomb panel 66 and easily atomized and vaporized when flowing from the liquid guide tube 5 onto the honeycomb panel 66. As a preferred embodiment, the honeycomb plate 66 is provided with a plurality of diamond-shaped or round holes, however, the holes on the honeycomb plate 66 may have other polygonal structures. When there is a large amount of vaporized leakage liquid, it is necessary to treat the vaporized liquid in the evacuation channel 7, and as a preferred embodiment, the evacuation channel 7 is connected to a suction device (not shown), and the vaporized liquid in the evacuation channel 7 can be pumped out, compressed, and refilled into the cargo tank 2, or any other suitable treatment can be performed.
Based on the technical scheme of the embodiment, the leakage liquid collecting device of the liquid cargo tank can conveniently collect liquid leaked from the liquid cargo tank, prevent the ship body from being too low in temperature to influence the structural strength safety of the ship body, and is simple in structure and low in cost.
In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. The leakage liquid collecting device of the cargo tank is characterized in that an insulation layer (3) is arranged on the outer side of the outer wall of the cargo tank (2), a gap is formed between the outer wall of the cargo tank (2) and the insulation layer (3) to form a leakage channel (4), and a gap is formed between the outer wall of the insulation layer (3) and the inner wall of the ship body (1) to form a dispersion channel (7);
a liquid collecting container (6) is arranged below the heat preservation layer (3) at the bottom of the liquid cargo tank (2), a liquid guide pipe (5) is penetrated in the heat preservation layer (3) at the bottom of the liquid cargo tank (2), the upper end of the liquid guide pipe (5) is communicated with the leakage channel (4), the lower end of the liquid guide pipe (5) is inserted into the liquid collecting container (6) from the opening of the liquid collecting container (6), the inner cavity of the liquid collecting container (6) is communicated with the discharge channel (7) through the opening of the liquid collecting container (6), and a honeycomb plate (66) is arranged below the liquid guide pipe (5); the liquid collecting container (6) comprises an upper shell cover (69) and a lower shell cover (65), and the honeycomb plate (66) is clamped between a lower edge opening of the upper shell cover (69) and an upper edge opening of the lower shell cover (65); the liquid flowing out of the liquid guide tube (5) flows onto the honeycomb plate (66), one part of the liquid is discharged from the mouth of the liquid collecting container (6) into the discharging channel (7) after being vaporized by the honeycomb plate (66), and the other part of the liquid flows to the lower part of the liquid collecting container (6) through the holes on the honeycomb plate (66).
2. The leaked liquid collection device of a cargo tank according to claim 1, wherein: the edge of the opening part of the liquid collecting container (6) is provided with a circle of baffle plates (61) protruding upwards.
3. The leaked liquid collection device of a cargo tank according to claim 1, wherein: the honeycomb panel (66) is provided with a plurality of diamond or round holes.
4. The leaked liquid collection device of a cargo tank according to claim 1, wherein: the exhaust channel (7) is connected with an air exhaust device.
5. The leaked liquid collection device of a cargo tank according to claim 1, wherein: the inner wall of the lower shell cover (65) is coated with a heat insulation material (64).
6. The leaked liquid collection device of a cargo tank according to claim 1, wherein: the bottom of the lower shell cover (65) is supported on the bottom of the ship body (1) through a first laminated wood (63).
7. The leaked liquid collection device of a cargo tank according to claim 1, wherein: a second laminated wood (68) is arranged between the upper edge opening of the lower shell cover (65) and the lower surface of the honeycomb plate (66).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307400.1A CN109204709B (en) | 2018-11-05 | 2018-11-05 | Leakage liquid collecting device of cargo tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811307400.1A CN109204709B (en) | 2018-11-05 | 2018-11-05 | Leakage liquid collecting device of cargo tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109204709A CN109204709A (en) | 2019-01-15 |
| CN109204709B true CN109204709B (en) | 2024-04-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811307400.1A Active CN109204709B (en) | 2018-11-05 | 2018-11-05 | Leakage liquid collecting device of cargo tank |
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| Country | Link |
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| CN (1) | CN109204709B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114104202B (en) * | 2022-01-07 | 2022-09-16 | 江南造船(集团)有限责任公司 | Film type flow guide device of liquid cargo tank, pressure alarm system and liquefied gas carrier |
| CN114148459B (en) * | 2022-01-07 | 2023-02-17 | 江南造船(集团)有限责任公司 | Leakage liquid cargo collecting device suitable for low-temperature liquid cargo tank |
| CN118025418A (en) * | 2024-04-12 | 2024-05-14 | 惠生清洁能源科技集团股份有限公司 | Liquid cargo tank with high safety |
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| KR20100110172A (en) * | 2009-04-02 | 2010-10-12 | 현대중공업 주식회사 | A liquified gas carrier and the building method thereof |
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| CN109204709A (en) | 2019-01-15 |
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