CN112342997A - Anti-icing system for inverted T-shaped dock gate internal water tank - Google Patents
Anti-icing system for inverted T-shaped dock gate internal water tank Download PDFInfo
- Publication number
- CN112342997A CN112342997A CN202011070145.0A CN202011070145A CN112342997A CN 112342997 A CN112342997 A CN 112342997A CN 202011070145 A CN202011070145 A CN 202011070145A CN 112342997 A CN112342997 A CN 112342997A
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- Prior art keywords
- dock gate
- water tank
- electric heating
- steel plate
- water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/003—Mechanically induced gas or liquid streams in seas, lakes or water-courses for forming weirs or breakwaters; making or keeping water surfaces free from ice, aerating or circulating water, e.g. screens of air-bubbles against sludge formation or salt water entry, pump-assisted water circulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C1/00—Dry-docking of vessels or flying-boats
- B63C1/08—Graving docks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the technical field of dock gate engineering, in particular to an anti-icing system for a water tank in an inverted T-shaped dock gate, which comprises a dock gate steel plate, a heating pipeline in a tank, a jet flow disturbance assembly and an electric heating assembly; circulating hot water is provided for a heating pipeline in the cabin through a hot water system, so that the water area on the inner side of the dock gate is prevented from being frozen; an output pipeline is arranged at the contact part of the bottom of the dock gate and the seawater at a certain depth below the water surface, and a bubble generator is utilized to generate continuous bubble groups under the water to destroy the formation of ice crystal nuclei and prevent icing; the jet flow disturbance assembly may have the condition that part of air blowing ports are damaged and cannot work in the operation process, and at the moment, the condition that an ice layer is formed on the outer side of the dock gate may exist; at the moment, an electric heating assembly is adopted to strengthen the anti-freezing effect of the jet flow disturbance assembly which is close to the normal work; the device can also be used as an auxiliary means for carrying out initial-stage ice melting to accelerate the operation effect of the jet flow disturbance assembly under the condition that the jet flow disturbance assembly is not operated due to sudden severe weather and sudden freezing of seawater.
Description
Technical Field
The invention relates to the technical field of dock gate engineering, in particular to an anti-icing system for a water tank in an inverted-T-shaped dock gate.
Background
The phenomenon of water freezing in many cases in engineering affects production efficiency and even jeopardizes equipment safety. Most dock gates are in contact with seawater, for a severe cold area, when the temperature of part of the dock gates is lower than the freezing point in winter, the dock gates are frozen by sea ice, the opening and closing of the dock gates are influenced, and therefore the work is influenced, and when the dock gates are closed, the water level in the ballast water tank and the external sea level are in a basically synchronous leveling state. Meanwhile, the outer wall of the dock gate on one side in the dock is directly contacted with cold air, so that the risk of freezing seawater in the water tank can be caused. The dock gate is generally made of steel, the heat conductivity coefficient of the dock gate is extremely high and can reach 53kW/(m DEG C) at 0 ℃, and if the thickness of the dock gate is considered according to 16mm, the heat transfer of the dock gate is realizedThe coefficient can reach 3313W/(m)2Deg.c). The extremely high heat transfer coefficient makes the heat inside the water tank easily dissipated to the surrounding air and seawater, so that the possibility of freezing exists.
In order to ensure that the dock gate can normally operate under an extreme working condition, the dock gate is considered from the water side and the water tank anti-freezing aspect. Ice melting generally takes two forms: hot melting and chemical melting. The ice door separation problem of the dock gate is an internal ice melting problem, and in order to reduce the complexity and investment cost of the device and reduce the operation difficulty, the ice melting is hopefully carried out by using the most common electric heating rod.
Disclosure of Invention
The invention aims to provide an anti-icing system for a water tank in an inverted-T-shaped dock gate, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an anti-icing system for a water tank in an inverted-T-shaped dock gate comprises a dock gate steel plate, a heating pipeline in a tank, a jet flow disturbance assembly and an electric heating assembly; heating pipelines in the cabin are densely distributed on the inner side of the dock gate steel plate, and the tail ends of the heating pipelines in the cabin are connected to a hot water system; a water tank is formed between the dock gate steel plates, and a jet flow disturbance assembly is arranged in the water tank; the jet flow disturbance assembly comprises a bubble generator and an air compressor, a mounting bracket is fixed on the inner wall of the water tank, the air compressor is arranged above the mounting bracket, the output end of the air compressor is connected to the bubble generator, the output end of the bubble generator is provided with an output pipeline, and the output pipeline is provided with a plurality of air blowing ports; the dock gate steel plate is characterized in that an electric heating assembly is arranged on the outer side of the dock gate steel plate and comprises seawater electric heating rods and a power supply, the seawater electric heating rods are transversely arranged on the outer side of the dock gate steel plate and are connected to the power supply.
Preferably, the dock gate steel plate comprises an outer side steel plate structure and an inner side steel plate structure, and a polyurethane foam heat-insulating material is filled between the outer side steel plate structure and the inner side steel plate structure.
Preferably, a plurality of single-group heating coils are uniformly fixed at intervals along the inner wall of the dock gate steel plate to form an in-cabin heating pipeline, and the hot water system adopts a water supply mode of supplying water from different routes.
Preferably, the mounting bracket is of a double-layer bracket structure, the upper end of the mounting bracket is arranged above the water surface of the water tank, the air compressor and the bubble generator are fixed on the mounting bracket above the water surface of the water tank, and the lower end of the output pipeline is arranged below the water surface of the water tank.
Preferably, the output pipeline obliquely extends into the area below the water surface of the water tank, the air blowing ports are uniformly distributed on the side surface of the output pipeline, and the air blowing ports are all located in the area below the water surface of the water tank.
Preferably, the seawater electric heating rods are welded and fixed on the outer side of the dock gate steel plate through anchor bolts, and the electric heating quantity of each seawater electric heating rod is 12.7 kW.
Preferably, 24 groups of electric heating assemblies are arranged on the outer side of the dock gate steel plate, each three groups of electric heating assemblies form a heating module, and the total electric heating power of each electric heating module is 228 kW.
Preferably, the inner side and the outer side of the dock gate steel plate are both provided with electric heating assemblies, and the plurality of electric heating assemblies are started in groups.
Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structural distribution, provides circulating hot water for the heating pipeline in the cabin through the hot water system and prevents the water area inside the dock gate from freezing; an output pipeline is arranged at the contact part of the bottom of the dock gate and the seawater at a certain depth below the water surface, and a bubble generator is utilized to generate continuous bubble groups under the water to destroy the formation of ice crystal nuclei and prevent icing; the jet flow disturbance assembly may have the condition that part of air blowing ports are damaged and cannot work in the operation process, and at the moment, the condition that an ice layer is formed on the outer side of the dock gate may exist; at the moment, an electric heating assembly is adopted to strengthen the anti-freezing effect of the jet flow disturbance assembly which is close to the normal work; the device can also be used as an auxiliary means for carrying out initial-stage ice melting to accelerate the operation effect of the jet flow disturbance assembly under the condition that the jet flow disturbance assembly is not operated due to sudden severe weather and sudden freezing of seawater.
Drawings
FIG. 1 is a schematic structural diagram of an inner side of a dock gate steel plate according to the present invention;
fig. 2 is a schematic sectional structure view of a dock gate steel plate according to the present invention.
In the figure: 1. a dock gate steel plate; 2. a cabin heating pipeline; 3. a hot water system; 4. a jet disturbance assembly; 41. mounting a bracket; 42. an air compressor; 43. a bubble generator; 44. an output pipeline; 45. an air blowing port; 5. an electrical heating assembly; 51. a seawater electric heating rod; 52. and (4) a power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 by those skilled in the art according to specific situations.
Referring to fig. 1-2, the present invention provides a technical solution: an anti-icing system for a water tank in an inverted-T-shaped dock gate comprises a dock gate steel plate 1, a heating pipeline 2 in the tank, a jet flow disturbance assembly 4 and an electric heating assembly 5; heating pipelines 2 in the cabin are densely distributed on the inner side of the dock gate steel plate 1, and the tail ends of the heating pipelines 2 in the cabin are connected to a hot water system 3; a water tank is formed between the dock gate steel plates 1, and a jet flow disturbance assembly 4 is arranged in the water tank; the jet flow disturbance assembly 4 comprises a bubble generator 43 and an air compressor 42, a mounting bracket 41 is fixed on the inner wall of the water tank, the air compressor 42 is arranged above the mounting bracket 41, the output end of the air compressor 42 is connected to the bubble generator 43, the output end of the bubble generator 43 is provided with an output pipeline 44, and the output pipeline 44 is provided with a plurality of air blowing ports 45; the electric heating assembly 5 is arranged on the outer side of the dock gate steel plate 1, the electric heating assembly 5 comprises seawater electric heating rods 51 and a power supply 52, the seawater electric heating rods 51 are transversely arranged on the outer side of the dock gate steel plate 1, and the seawater electric heating rods 51 are connected to the power supply 52.
Further, the dock gate steel plate 1 comprises an outer side steel plate structure and an inner side steel plate structure, and a polyurethane foam heat-insulating material is filled between the outer side steel plate structure and the inner side steel plate structure.
Furthermore, a plurality of single-group heating coils are uniformly fixed at intervals along the inner wall of the dock gate steel plate 1 to form an in-cabin heating pipeline 2, and the hot water system 3 adopts a water supply form of supplying water back and forth in different processes.
Further, the mounting bracket 41 is a double-layer bracket structure, the upper end of the mounting bracket 41 is arranged above the water surface of the water tank, the air compressor 42 and the bubble generator 43 are fixed on the mounting bracket 41 above the water surface of the water tank, and the lower end of the output pipeline 44 is arranged below the water surface of the water tank.
Further, the output pipeline 44 extends to the area below the water surface of the water tank in an inclined mode, the air blowing ports 45 are evenly distributed on the side face of the output pipeline 44, and the air blowing ports 45 are located in the area below the water surface of the water tank.
Further, the seawater electric heating rods 51 are welded and fixed on the outer side of the dock gate steel plate 1 through a hoop, and the electric heating amount of each seawater electric heating rod 51 is 12.7 kW.
Further, 24 groups of electric heating assemblies 5 are arranged on the outer side of the dock gate steel plate 1, each three groups of electric heating assemblies 5 form a heating module, and the total electric heating power of each electric heating module is 228 kW.
Further, the inside and the outside of the dock gate steel plate 1 are both provided with electric heating assemblies 5, and a plurality of electric heating assemblies are started in groups.
The working principle is as follows: the dock gate is generally made of steel, the heat conductivity coefficient of the dock gate is extremely high and can reach 53kW/(m DEG C) at 0 ℃, and the heat transfer coefficient of the dock gate can reach 3313W/(m DEG C) if the thickness of the dock gate is considered according to 16mm2Deg.c). The extremely high heat transfer coefficient makes the heat inside the water tank easily dissipated to the surrounding air and seawater, so that the possibility of freezing exists. In order to ensure that the dock gate can normally operate under an extreme working condition, the dock gate is considered from the water side and the water tank anti-freezing aspect; the dock gate steel plate 1 comprises an outer side steel plate structure and an inner side steel plate structure, and polyurethane foam heat-insulating materials are filled between the outer side steel plate structure and the inner side steel plate structure; heating pipelines 2 in the cabin are densely distributed on the inner side of the dock gate steel plate 1, the tail ends of the heating pipelines 2 in the cabin are connected to a hot water system 3, circulating hot water is provided for the heating pipelines 2 in the cabin through the hot water system 3, and the water area on the inner side of the dock gate is prevented from being frozen;
a water tank is formed between the dock gate steel plates 1, and a jet flow disturbance assembly 4 is arranged in the water tank; the jet flow disturbance assembly 4 comprises a bubble generator 43 and an air compressor 42, a mounting bracket 41 is fixed on the inner wall of the water tank, the air compressor 42 is arranged above the mounting bracket 41, the output end of the air compressor 42 is connected to the bubble generator 43, the output end of the bubble generator 43 is provided with an output pipeline 44, and the output pipeline 44 is provided with a plurality of air blowing ports 45; an output pipeline 44 is arranged at the contact part of the bottom of the dock gate and the seawater and at a certain depth below the water surface, and a bubble generator 43 is utilized to generate continuous bubble groups under the water to destroy the formation of ice crystal nuclei and prevent icing; the air compressor 42 is used and prepared, the working reliability of the system is guaranteed, and the jet flow disturbance assembly 4 is free of maintenance and has protection functions such as self-sealing and the like;
an electric heating assembly 5 is arranged on the outer side of the dock gate steel plate 1, the electric heating assembly 5 comprises seawater electric heating rods 51 and a power supply 52, the seawater electric heating rods 51 are transversely arranged on the outer side of the dock gate steel plate 1, and the seawater electric heating rods 51 are connected to the power supply 52; the situation that part of the air blowing ports 45 are damaged and cannot work in the running process of the jet flow disturbance assembly 4 may occur, and at the moment, the situation that an ice layer is formed on the outer side of the dock gate may exist; at the moment, the electric heating assembly 5 is adopted in the icing area range (-0.970m +/-1 m) outside the dock gate, and small holes are formed in the ice layer on the dock gate in a melting mode, so that the anti-freezing effect of the jet flow disturbance assembly 4 which works normally and is adjacent to the dock gate is enhanced; considering that it is possible to use both sides of the dock gate, it is considered to provide the electrical heating assembly 5 on both sides of the aligned bubbling ports 45. The electric heating component 5 can also be used as an auxiliary means for carrying out initial-stage ice melting to accelerate the operation effect of the jet flow disturbance component 4 under the condition that the jet flow disturbance component 4 is not operated due to sudden severe weather and sudden freezing of seawater.
It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an inside water tank anti-icing system of type of falling T dock gate which characterized in that: the device comprises a dock gate steel plate (1), an in-cabin heating pipeline (2), a jet flow disturbance assembly (4) and an electric heating assembly (5); heating pipelines (2) in the cabin are densely distributed on the inner side of the dock gate steel plate (1), and the tail end of each heating pipeline (2) in the cabin is connected to a hot water system (3); a water tank is formed between the dock gate steel plates (1), and a jet flow disturbance assembly (4) is arranged in the water tank; the jet flow disturbance assembly (4) comprises a bubble generator (43) and an air compressor (42), a mounting bracket (41) is fixed on the inner wall of the water tank, the air compressor (42) is arranged above the mounting bracket (41), the output end of the air compressor (42) is connected to the bubble generator (43), an output pipeline (44) is arranged at the output end of the bubble generator (43), and a plurality of air blowing ports (45) are arranged on the output pipeline (44); the electric heating assembly (5) is arranged on the outer side of the dock gate steel plate (1), the electric heating assembly (5) comprises seawater electric heating rods (51) and a power supply (52), the seawater electric heating rods (51) are transversely arranged on the outer side of the dock gate steel plate (1), and the seawater electric heating rods (51) are connected to the power supply (52).
2. The anti-icing system for the water tank inside the inverted-T-shaped dock gate according to claim 1, wherein: the dock gate steel plate (1) comprises an outer side steel plate structure and an inner side steel plate structure, and polyurethane foam heat-insulating materials are filled between the outer side steel plate structure and the inner side steel plate structure.
3. The anti-icing system for the water tank inside the inverted-T-shaped dock gate according to claim 1, wherein: a plurality of single-group heating coil pipes are uniformly fixed at intervals along the inner wall of the dock gate steel plate (1) to form an in-cabin heating pipeline (2), and the hot water system (3) adopts a water supply form of supplying water back and forth in different processes.
4. The anti-icing system for the water tank inside the inverted-T-shaped dock gate according to claim 1, wherein: the mounting bracket (41) is of a double-layer bracket structure, the upper end of the mounting bracket (41) is arranged above the water surface of the water tank, the air compressor (42) and the bubble generator (43) are fixed on the mounting bracket (41) above the water surface of the water tank, and the lower end of the output pipeline (44) is arranged below the water surface of the water tank.
5. The anti-icing system for the water tank inside the inverted-T-shaped dock gate according to claim 1, wherein: the output pipeline (44) obliquely extends into the area below the water surface of the water tank, the air blowing ports (45) are uniformly distributed on the side surface of the output pipeline (44), and the air blowing ports (45) are all located in the area below the water surface of the water tank.
6. The anti-icing system for the water tank inside the inverted-T-shaped dock gate according to claim 1, wherein: the seawater electric heating rods (51) are welded and fixed on the outer side of the dock gate steel plate (1) through anchor bolts, and the electric heating quantity of each seawater electric heating rod (51) is 12.7 kW.
7. The anti-icing system for the water tank inside the inverted-T-shaped dock gate according to claim 1, wherein: 24 groups of electric heating assemblies (5) are arranged on the outer side of the dock gate steel plate (1), each three groups of electric heating assemblies (5) form a heating module, and the total electric heating power of each electric heating module is 228 kW.
8. The anti-icing system for the water tank inside the inverted-T-shaped dock gate according to claim 1, wherein: the inside and outside sides of the dock gate steel plate (1) are provided with electric heating assemblies (5), and a plurality of electric heating assemblies are started in groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011070145.0A CN112342997A (en) | 2020-09-30 | 2020-09-30 | Anti-icing system for inverted T-shaped dock gate internal water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011070145.0A CN112342997A (en) | 2020-09-30 | 2020-09-30 | Anti-icing system for inverted T-shaped dock gate internal water tank |
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| Publication Number | Publication Date |
|---|---|
| CN112342997A true CN112342997A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011070145.0A Pending CN112342997A (en) | 2020-09-30 | 2020-09-30 | Anti-icing system for inverted T-shaped dock gate internal water tank |
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| CN (1) | CN112342997A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07232157A (en) * | 1994-02-21 | 1995-09-05 | Kubota Corp | Freeze-up preventive device |
| CN202017191U (en) * | 2011-03-26 | 2011-10-26 | 浙江华东机电工程有限公司 | Anti-freezing device for hydraulic gate |
| CN206150341U (en) * | 2016-08-19 | 2017-05-10 | 福建省闽星食品科技有限公司 | Bubble thawing apparatus |
| CN107090806A (en) * | 2017-06-28 | 2017-08-25 | 华能西藏雅鲁藏布江水电开发投资有限公司 | Gate of hydropower station deicing device |
| CN207295652U (en) * | 2017-10-18 | 2018-05-01 | 王建平 | Water conservancy gate |
| CN207436016U (en) * | 2017-09-09 | 2018-06-01 | 计磊 | A kind of water conservancy and hydropower gate upstream face anti-freezing device |
| CN109706897A (en) * | 2019-01-07 | 2019-05-03 | 河北庄禹水工机械有限公司 | A kind of antifreeze gate of pre-buried polarization aeration type |
| CN211142993U (en) * | 2019-11-25 | 2020-07-31 | 白庆锋 | Water conservancy water and electricity gate slot freeze-proof device |
-
2020
- 2020-09-30 CN CN202011070145.0A patent/CN112342997A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07232157A (en) * | 1994-02-21 | 1995-09-05 | Kubota Corp | Freeze-up preventive device |
| CN202017191U (en) * | 2011-03-26 | 2011-10-26 | 浙江华东机电工程有限公司 | Anti-freezing device for hydraulic gate |
| CN206150341U (en) * | 2016-08-19 | 2017-05-10 | 福建省闽星食品科技有限公司 | Bubble thawing apparatus |
| CN107090806A (en) * | 2017-06-28 | 2017-08-25 | 华能西藏雅鲁藏布江水电开发投资有限公司 | Gate of hydropower station deicing device |
| CN207436016U (en) * | 2017-09-09 | 2018-06-01 | 计磊 | A kind of water conservancy and hydropower gate upstream face anti-freezing device |
| CN207295652U (en) * | 2017-10-18 | 2018-05-01 | 王建平 | Water conservancy gate |
| CN109706897A (en) * | 2019-01-07 | 2019-05-03 | 河北庄禹水工机械有限公司 | A kind of antifreeze gate of pre-buried polarization aeration type |
| CN211142993U (en) * | 2019-11-25 | 2020-07-31 | 白庆锋 | Water conservancy water and electricity gate slot freeze-proof device |
Non-Patent Citations (1)
| Title |
|---|
| 黄履: "《船坞闸门设计》", 31 January 1981 * |
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Application publication date: 20210209 |