CN114030564A - Method for oil tank heat preservation and ship - Google Patents
Method for oil tank heat preservation and ship Download PDFInfo
- Publication number
- CN114030564A CN114030564A CN202111406888.5A CN202111406888A CN114030564A CN 114030564 A CN114030564 A CN 114030564A CN 202111406888 A CN202111406888 A CN 202111406888A CN 114030564 A CN114030564 A CN 114030564A
- Authority
- CN
- China
- Prior art keywords
- oil tank
- tank
- heavy oil
- steel lining
- insulating
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004321 preservation Methods 0.000 title description 5
- 239000000295 fuel oil Substances 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 238000005187 foaming Methods 0.000 claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 19
- 239000012774 insulation material Substances 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 15
- 239000011810 insulating material Substances 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000002519 antifouling agent Substances 0.000 claims description 4
- 239000006260 foam Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- 239000003643 water by type Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 108010066057 cabin-1 Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
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
- B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
- B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the technical field of ships, in particular to a method for preserving the heat of an oil tank and a ship, wherein the method for preserving the heat of the oil tank comprises the following steps: s1, arranging steel lining plates at intervals along the circumferential direction of the heavy oil tank and a wall plate of the heavy oil tank, wherein the steel lining plates are fixedly connected with a deck of the heavy oil tank, the steel lining plates, the wall plate and the deck enclose to form an empty chamber, and the empty chamber is positioned in a ballast water tank; s2, injecting foaming heat insulation materials into the empty cabin; s3, welding the joint of the steel lining plate and the deck; and S4, checking the water tightness of the empty cabin. The invention can preserve heat of the heavy oil tank, reduce heat loss of the heavy oil tank and facilitate construction.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a method for preserving the heat of an oil tank and a ship.
Background
With the development of marine resources, ships are sailing in more and more extensive waters, including cold waters. The anti-freezing and heat-insulating functions are indispensable to ships sailing in cold water areas, and particularly to ships needing to operate in the cold water areas for a long time.
If heavy oil which needs to be heated by steam and is reused is loaded on the ship, an insulating layer is generally arranged around the heavy oil tank. The traditional heat preservation method is to coat heat insulation cotton on the outer wall of the heavy oil tank.
The lowest air temperature in the environment of a cold water area can reach-35 ℃, the seawater temperature is 0 ℃, and a larger temperature difference is formed between the air temperature and the seawater temperature in the oil tank, wherein the air temperature is 50-60 ℃. When a ballast water tank is arranged outside the heavy oil tank, the outer wall of the heavy oil tank is difficult to be coated with heat-insulating cotton. However, if the outer wall of the heavy oil tank is not used as a heat insulation facility, the heat loss of the heavy oil tank is too fast, so that the power consumption of a heating system of the heavy oil tank is large.
Therefore, a method and vessel for tank insulation is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a method for insulating an oil tank and a ship, which can insulate the heavy oil tank and is convenient to construct.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preserving the temperature of a cargo tank, comprising the steps of:
s1, arranging steel lining plates at intervals along the circumferential direction of the heavy oil tank and a wall plate of the heavy oil tank, wherein the steel lining plates are fixedly connected with a deck of the heavy oil tank, the steel lining plates, the wall plate and the deck enclose to form an empty chamber, and the empty chamber is positioned in a ballast water tank;
s2, injecting foaming heat insulation materials into the empty cabin;
s3, welding the joint of the steel lining plate and the deck;
and S4, checking the water tightness of the empty cabin.
Further, in step S1, a through hole communicating with the cavity is opened in the wall plate, and the through hole is used for injecting the foaming and heat insulating material.
Furthermore, the through holes are formed in the wall plate at intervals.
Further, in step S2, after the foaming and heat insulating material is injected into the empty chamber, a sealing plate is welded to the through hole of the wall plate to seal the through hole.
Further, a heat insulation material is padded at the bottom of the through hole, and then the sealing plate is welded.
Further, the heat insulation material is rock wool.
Further, step S4 includes performing a water tightness check on the weld between the sealing plate and the wall plate.
And further, polishing the welding line after the water tightness of the welding line is qualified.
Further, the method also comprises the following steps:
s5, coating protective paint on one side of the wallboard, which is far away from the steel lining board, and coating antirust paint on one side of the steel lining board, which is far away from the wallboard.
A vessel for building the insulation of heavy tanks using the method for insulating tanks as described above.
The invention has the beneficial effects that:
according to the method for preserving the heat of the oil tank, the steel lining plates are arranged along the circumferential direction of the heavy oil tank and the wall plates of the heavy oil tank at intervals, the steel lining plates, the wall plates and the deck plate are arranged in an enclosing mode to form the empty tank positioned in the ballast water tank, then the foaming heat insulation material is injected into the empty tank, and the hollow area in the empty tank is completely filled by utilizing the characteristic of foaming expansion of the foaming heat insulation material, so that the effect of insulating the heavy oil tank is achieved, the phenomenon that the heat loss of the heavy oil tank is too fast is avoided, and the power consumption of a heating system of the heavy oil tank is reduced. After the foaming heat insulation material is injected, the connecting part of the steel lining plate and the deck is welded and fixed, and then the water tightness of the empty cabin is checked, so that the water tightness meeting the requirement is ensured, and the effect of preventing water or other substances from entering the empty cabin to damage the foaming heat insulation material is achieved.
According to the ship provided by the invention, the heat insulation layer of the heavy oil tank is built by using the method for oil tank heat insulation, so that the heat insulation of the heavy oil tank can be realized, the heat loss of the heavy oil tank is reduced, and the construction is convenient.
Drawings
FIG. 1 is a cross-sectional view of a heavy oil tank of the present invention for insulating the oil tank;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure:
1. a heavy oil tank; 11. wall plates; 2. a steel liner plate; 21. emptying the cabin; 22. foaming and heat insulating materials; 23. a thermal insulation material; 3. a deck; 4. a ballast water tank.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The anti-freezing and heat-insulating functions are indispensable for ships sailing in cold waters of the polar region, particularly for ships that need to operate in cold waters for a long time, such as fishing boats in the polar region. The air temperature in the polar region environment reaches-35 ℃, the seawater temperature is 0 ℃, and a large temperature difference is formed between the seawater temperature and the temperature of 50-60 ℃ in the oil tank. When a ballast water tank is arranged outside the heavy oil tank, the outer wall of the heavy oil tank is difficult to be coated with heat-insulating cotton. However, if the outer wall of the heavy oil tank is not used as a heat insulation facility, the heat loss of the heavy oil tank is too fast, so that the power consumption of a heating system of the heavy oil tank is large.
In order to solve the above problems, and to enable thermal insulation of a heavy oil tank and facilitate construction, as shown in fig. 1-2, the present invention provides a method for thermal insulation of an oil tank. The method for oil tank heat preservation comprises the following steps:
s1, arranging steel lining plates 2 at intervals with wall plates 11 of the heavy oil tank 1 along the circumferential direction of the heavy oil tank 1, fixedly connecting the steel lining plates 2 with a deck 3 of the heavy oil tank 1, enclosing the steel lining plates 2, the wall plates 11 and the deck 3 to form an empty tank 21, and positioning the empty tank 21 in a water ballast tank 4;
s2, injecting foaming heat insulation materials 22 into the empty cabin 21; in this embodiment, the foaming and heat insulating material 22 is a polyurethane foaming material, and when the material is ejected from the aerosol can, the foamed polyurethane material rapidly expands and undergoes a curing reaction with air or moisture in the contacted substrate to form foam. The application range is wide. The foam has the advantages of pre-foaming, high expansion, small contraction and the like, and the foam has good strength, high bonding force and various effects of joint filling, bonding, sealing, heat insulation, sound absorption and the like after curing.
S3, welding the joint of the steel lining plate 2 and the deck plate 3, so as to seal the gap in the empty cabin 21 and ensure the sealing property of the empty cabin 21;
and S4, checking the water tightness of the empty cabin 21, when the water tightness does not meet the requirement, welding the area with leakage, and then checking again until the empty cabin 21 meets the water tightness requirement.
The hollow area in the empty tank 21 is completely filled by utilizing the characteristic of foaming expansion of the foaming heat-insulating material 22, so that the effect of insulating the heavy oil tank 1 is achieved, the phenomenon that the heat loss of the heavy oil tank 1 is too fast is avoided, and the power consumption of a heating system of the heavy oil tank 1 is reduced. After the foaming heat insulation material 22 is injected, the connection part of the steel lining plate 2 and the deck plate 3 is welded and fixed, and then the water tightness of the empty cabin 21 is checked, so that the water tightness can meet the requirement, and the effect of preventing water or other substances from entering the empty cabin 21 to damage the foaming heat insulation material 22 is achieved.
Specifically, in order to guarantee that the empty tank 21 does not occupy too much space of the ballast water tank 4, thereby guarantee that the ballast water tank 4 can pour into sufficient water, thereby guarantee the security of ship operation, in this embodiment, the steel lining board 2 is along with the shape design of wallboard 11, and the thickness of empty tank 21 is no more than 150mm moreover. Through the mode, the safety performance of ship operation can be guaranteed while heat preservation can be guaranteed for the heavy oil tank 1.
Further, in step S1, a through hole communicating with the cavity 21 is opened in the wall plate 11, and the foaming and heat insulating material 22 is injected into the through hole. The foaming heat insulating material 22 can be injected conveniently by forming the through hole. Specifically, the through holes are formed in the wall plate 11 at intervals. By forming the plurality of through holes, the uniformity of the molded foamed heat insulating material 22 after being injected into the foamed heat insulating material 22 can be improved, thereby ensuring the heat insulating effect.
Further, in step S2, after the foaming and heat insulating material 22 is injected into the empty chamber 21, a sealing plate is welded to the through hole of the wall plate 11 to seal the through hole. The empty cabin 21 is a sealed area by welding the closing plates, and heavy oil in the heavy oil cabin 1 is prevented from entering the empty cabin 21 and causing damage to the foaming heat insulation material 22.
Further, a heat insulating material 23 is padded at the bottom of the through hole, and then a closing plate is welded. Specifically, the heat insulating material 23 is rock wool. By providing the heat insulating material 23, it is possible to prevent the heat of welding from being transmitted to the empty chamber 21 and damaging the foamed heat insulating material 22 when the closing plate is welded.
Further, step S4 includes performing a water tightness check on the weld between the sealing plate and the wall plate 11. Through checking the welding seam at the position, when the welding seam is unqualified, the unqualified area is welded again, so that the welding quality is ensured, and the welding seam cannot leak when heavy oil is stored in the heavy oil tank 1.
And further, polishing the welding line after the water tightness of the welding line is qualified. By polishing the welding seam, the smoothness of the welding area is guaranteed, and meanwhile, stress concentration in a local area can be prevented.
Further, the method for preserving the temperature of the oil tank further comprises the following steps:
s5, coating protective paint on the side of the wallboard 11, which is far away from the steel lining board 2, and coating antirust paint on the side of the steel lining board 2, which is far away from the wallboard 11. The corrosion of heavy oil to the wallboard 11 can be prevented by coating protective paint, and the rust-proof paint is coated on the steel lining plate 2 to prevent the steel lining plate 2 from rusting, so that the service life is prolonged.
The embodiment also provides a ship, and the heat insulation layer of the heavy oil tank 1 is built by using the method for oil tank heat insulation, so that the heat insulation of the heavy oil tank 1 can be realized, the heat loss of the heavy oil tank 1 is reduced, and the construction is convenient.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A method for preserving the temperature of a cargo tank, comprising the steps of:
s1, arranging steel lining plates (2) at intervals with wall plates (11) of the heavy oil tank (1) along the circumferential direction of the heavy oil tank (1), fixedly connecting the steel lining plates (2) with a deck (3) of the heavy oil tank (1), enclosing the steel lining plates (2), the wall plates (11) and the deck (3) to form an empty tank (21), and positioning the empty tank (21) in a water ballast tank (4);
s2, injecting foaming heat insulation materials (22) into the empty cabin (21);
s3, welding the joint of the steel lining plate (2) and the deck (3);
s4, checking the water tightness of the empty cabin (21).
2. The method for insulating a cargo tank according to claim 1, wherein in step S1, a through hole communicating with the empty tank (21) is opened in the wall plate (11), and the through hole is used for injecting the foaming and heat insulating material (22).
3. A method for insulating a cargo tank according to claim 2, characterized in that said through holes are provided in plurality at intervals in said wall plate (11).
4. The method for insulating a cargo tank according to claim 2, wherein in step S2, after the foam insulation material (22) is injected into the empty tank (21), a sealing plate is welded to the through hole of the wall plate (11) to seal the through hole.
5. The method for insulating a cargo tank according to claim 4, wherein an insulating material (23) is applied to the bottom of the through hole, and then the closing plate is welded.
6. A method for keeping the tank warm as claimed in claim 5, characterized in that the insulating material (23) is rock wool.
7. The method for insulating a cargo tank according to claim 4, wherein the step S4 further comprises performing a water tightness check on the weld between the closing plate and the wall plate (11).
8. The method for insulating the oil tank according to claim 7, wherein the welding line is ground after the water tightness of the welding line is checked to be qualified.
9. The method for insulating a cargo tank according to claim 1, further comprising the steps of:
s5, coating protective paint on one side of the wallboard (11) departing from the steel lining plate (2), and coating antirust paint on one side of the steel lining plate (2) departing from the wallboard (11).
10. A ship, characterized in that the insulation of a heavy tank (1) is built using the method for tank insulation according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111406888.5A CN114030564A (en) | 2021-11-24 | 2021-11-24 | Method for oil tank heat preservation and ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111406888.5A CN114030564A (en) | 2021-11-24 | 2021-11-24 | Method for oil tank heat preservation and ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114030564A true CN114030564A (en) | 2022-02-11 |
Family
ID=80145433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111406888.5A Pending CN114030564A (en) | 2021-11-24 | 2021-11-24 | Method for oil tank heat preservation and ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114030564A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498676A (en) * | 2014-11-21 | 2015-04-08 | 中船黄埔文冲船舶有限公司 | Truss framed leg main-chord heating/insulation device |
| CN105966547A (en) * | 2016-05-12 | 2016-09-28 | 中船黄埔文冲船舶有限公司 | Construction method for preserving heat of closed hot water cabin interlayer |
| CN108657410A (en) * | 2018-04-13 | 2018-10-16 | 中船黄埔文冲船舶有限公司 | A kind of double spiral duct connection structure and connection method |
| CN210235248U (en) * | 2019-07-01 | 2020-04-03 | 刘赟德 | Cryogenic liquid cargo insulation construction and cryogenic liquid cargo hold for hold |
| CN214607952U (en) * | 2021-02-22 | 2021-11-05 | 悌埃深冷(上海)海洋工程有限公司 | Heat preservation system as secondary shielding |
-
2021
- 2021-11-24 CN CN202111406888.5A patent/CN114030564A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498676A (en) * | 2014-11-21 | 2015-04-08 | 中船黄埔文冲船舶有限公司 | Truss framed leg main-chord heating/insulation device |
| CN105966547A (en) * | 2016-05-12 | 2016-09-28 | 中船黄埔文冲船舶有限公司 | Construction method for preserving heat of closed hot water cabin interlayer |
| CN108657410A (en) * | 2018-04-13 | 2018-10-16 | 中船黄埔文冲船舶有限公司 | A kind of double spiral duct connection structure and connection method |
| CN210235248U (en) * | 2019-07-01 | 2020-04-03 | 刘赟德 | Cryogenic liquid cargo insulation construction and cryogenic liquid cargo hold for hold |
| CN214607952U (en) * | 2021-02-22 | 2021-11-05 | 悌埃深冷(上海)海洋工程有限公司 | Heat preservation system as secondary shielding |
Non-Patent Citations (1)
| Title |
|---|
| 陈世和: "《电子电工实习教程》", 北京航空航天大学出版社, pages: 104 * |
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Application publication date: 20220211 |