CN115158625B - Ship low-temperature fuel cold energy recycling system and method and ship - Google Patents
Ship low-temperature fuel cold energy recycling system and method and ship Download PDFInfo
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- CN115158625B CN115158625B CN202210835481.2A CN202210835481A CN115158625B CN 115158625 B CN115158625 B CN 115158625B CN 202210835481 A CN202210835481 A CN 202210835481A CN 115158625 B CN115158625 B CN 115158625B
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- 239000000446 fuel Substances 0.000 title claims abstract description 147
- 238000004064 recycling Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000003507 refrigerant Substances 0.000 claims abstract description 59
- 238000009825 accumulation Methods 0.000 claims abstract description 56
- 239000002737 fuel gas Substances 0.000 claims abstract description 47
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 239000002826 coolant Substances 0.000 claims abstract description 15
- 239000002828 fuel tank Substances 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims description 39
- 239000007789 gas Substances 0.000 claims description 25
- 239000013505 freshwater Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000004378 air conditioning Methods 0.000 claims description 17
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 abstract description 15
- 238000002309 gasification Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 description 6
- 239000006200 vaporizer Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000003949 liquefied natural gas Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
- B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/12—Heating; Cooling
Abstract
The invention relates to the technical field of ships, in particular to a ship low-temperature fuel cold energy recycling system and method and a ship, wherein the ship low-temperature fuel cold energy recycling system and method comprises a low-temperature liquefied fuel tank, a low-temperature liquefied fuel supply pump, a fuel gasifier, a circulating pump, a cold energy recycling heat exchanger, a refrigerant heater, a fuel gas heater, a cold accumulation tank heat exchanger and a fluid pipeline; the fluid pipeline is communicated with the cooling medium, and a cooling medium for carrying cold energy is arranged in the fluid pipeline; according to the air supply flow of the low-temperature liquid fuel, the high-quality cold energy released in the gasification process of the liquid fuel is recovered, stored and reused in the air conditioner and the refrigerating system on the ship, the air conditioner and the refrigerating system can be operated under different operation working conditions of the ship, the electric energy consumption of the air conditioner and the refrigerating system can be effectively reduced, the total fuel consumption in the operation of the ship is reduced, and the energy efficiency index of the ship is improved.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a system and a method for recycling low-temperature fuel cold energy of a ship and the ship.
Background
As the world climate problem becomes more serious, people pay more and more attention to environmental protection, and the traditional ships mainly use heavy oil as fuel, have larger total power and have remarkable total emission data. The energy conservation and emission reduction targets are continuously realized by technical innovation in the shipping world so as to control the total carbon emission in the global scope.
The novel environment-friendly green fuel is increasingly touted by the navigation world, and more new ships adopt environment-friendly fuels such as liquefied natural gas, hydrogen, ammonia and the like, so that other emissions of the greenhouse such as carbon dioxide can be reduced to a greater extent. The clean fuel is characterized in that the clean fuel needs to be stored at low temperature in a liquefied state, and is gasified and then is conveyed to a host machine, a generator or a boiler for air supply. The liquefied low-temperature fuel itself stores huge high-quality cold energy, and can be applied to the cold energy requirement of the ship in the running process after conversion.
The low-temperature clean fuel adopted on the existing ship, such as liquefied natural gas, is required to be stored at the temperature of-163 ℃, and can be conveyed to a ship user for use after being gasified and heated to the temperature of more than 20 ℃ by the gas supply system. The gasification process of the low-temperature liquid fuel needs to adopt fresh water or seawater on a ship for heating, and the seawater after heat exchange directly discharges the carried cold into the sea, so that a large amount of energy is wasted.
Disclosure of Invention
The invention aims to provide a low-temperature fuel cold energy recycling system for a ship, which aims at the gas supply flow of low-temperature liquid fuel, and recycles high-quality cold energy released in the gasification process of the liquid fuel to an air conditioner and a refrigerating system on the ship, so that the system can operate under different operating conditions of the ship, and can effectively reduce the electric energy consumption of the air conditioner and the refrigerating system, thereby reducing the total fuel consumption in the operation process of the ship and improving the energy efficiency index of the ship.
The invention further aims to provide a low-temperature fuel cold energy recycling method of the ship low-temperature fuel cold energy recycling system, which aims at the air supply flow of low-temperature liquid fuel, and the high-quality cold energy released in the gasification process of the liquid fuel is recycled, stored and reused in an air conditioner and a refrigerating system on a ship, so that the ship can operate under different operating conditions of the ship, the electric energy consumption of the air conditioner and the refrigerating system can be effectively reduced, the total fuel consumption in the operation process of the ship is reduced, and the energy efficiency index of the ship is improved.
Still another object of the present invention is to provide a ship, which can recover, store and reuse high-quality cold energy released during the gasification process of the liquid fuel to an air conditioning and refrigerating system on the ship according to the air supply process of the low-temperature liquid fuel, and can operate under different operation conditions of the ship, so that the electric energy consumption of the air conditioning and refrigerating system can be effectively reduced, the total fuel consumption during the operation of the ship can be reduced, and the energy efficiency index of the ship can be improved.
The technical scheme of the invention is realized as follows:
a ship low-temperature fuel cold energy recycling system comprises a low-temperature liquefied fuel tank, a low-temperature liquefied fuel supply pump, a fuel gasifier, a circulating pump, a cold energy recycling heat exchanger, a refrigerant heater, a fuel gas heater, a cold accumulation tank heat exchanger and a fluid pipeline;
the fuel gasifier, the circulating pump, the cold energy recovery heat exchanger, the refrigerant heater, the fuel gas heater and the cold accumulation pool heat exchanger are communicated through the fluid pipeline, and the fluid pipeline is filled with a refrigerant;
the output end of the low-temperature liquefied fuel tank is communicated with the input end of the low-temperature liquefied fuel supply pump, the output end of the low-temperature liquefied fuel supply pump is communicated with the input end of the fuel gasifier, the output end of the fuel gasifier is simultaneously communicated with the input end of the cold energy recovery heat exchanger and the input end of the fuel gas heater, and the output end of the fuel gas heater is led to gas utilization equipment on a ship for use;
the output end of the cold energy recovery heat exchanger is led to an on-board air conditioner coolant water system, meanwhile, the output end of the cold energy recovery heat exchanger is communicated with the input end of the cold accumulation heat exchanger, the cold accumulation heat exchanger can act on fresh water in the cold accumulation, the output end of the cold accumulation heat exchanger is communicated with the input end of the coolant heater, the output end of the coolant heater is communicated with the input end of the circulating pump, and the output end of the circulating pump is communicated with the input end of the fuel gasifier.
Further, the output end of the gas heater is also communicated with the input end of the refrigerant heater, the output end of the refrigerant heater is also led to a fresh water cooling system on a ship, and the fresh water cooling system is led to the gas heater.
Further, the fluid lines include a first line, a second line, a third line, a fourth line, a fifth line, and a sixth line;
the output end of the fuel gasifier is communicated with the input end of the cold energy recovery heat exchanger through the first pipeline and the input end of the fuel gas heater through the second pipeline, the output end of the cold energy recovery heat exchanger is communicated with the input end of the cold accumulation tank heat exchanger through the third pipeline, the output end of the cold accumulation tank heat exchanger is communicated with the input end of the refrigerant heater through the fourth pipeline, the output end of the refrigerant heater is communicated with the input end of the circulating pump through the fifth pipeline, and the output end of the circulating pump is communicated with the input end of the fuel gasifier through the sixth pipeline.
Further, an expansion tank is arranged on the fifth pipeline.
Further, control valves are provided between the first pipe and the third pipe, between the third pipe and the fourth pipe, between the fourth pipe and the fifth pipe, and between the sixth pipe and the first pipe.
Further, a control module is provided for controlling each of the control valves.
Further, an insulating heat-preserving structure and an automatic water supplementing device are arranged in the cold accumulation pool.
Further, the refrigerant is ethylene glycol.
The application also provides a low-temperature fuel cold energy recycling method based on the system, wherein the low-temperature liquefied fuel supply pump pumps low-temperature liquefied fuel in the low-temperature liquefied fuel tank and conveys the low-temperature liquefied fuel to the fuel gasifier;
the fuel gasifier gasifies the low-temperature liquefied fuel to form fuel gas, and the fuel gas is conveyed to the fuel gas heater, and then the fuel gas heater heats the fuel gas to the designed working temperature and conveys the fuel gas to gas utilization equipment on a ship for use;
or the fuel gasifier gasifies the low-temperature liquefied fuel to form fuel gas and releases cold energy, the released cold energy is transferred to the refrigerant in the fluid pipeline, the refrigerant carrying the cold energy sequentially flows through the cold energy recovery heat exchanger, the cold accumulation pool heat exchanger and the refrigerant heater through the fluid pipeline to complete cold energy exchange, and the refrigerant is conveyed to the fuel gasifier through the circulating pump to complete a closed cycle;
the cold energy recovery heat exchanger is used for an air-conditioning refrigerant water system on a ship, and the cold energy recovery heat exchanger conveys surplus cold energy to the cold accumulation pool heat exchanger while meeting the requirements of the air-conditioning refrigerant water system on the ship, and the cold accumulation pool heat exchanger utilizes the surplus cold energy to freeze and refrigerate fresh water in a cold accumulation pool so as to recover and store the surplus cold energy;
and surplus cold energy recovered and stored in the cold accumulation pool is reused in an air-conditioning refrigerant water system on the ship through the circulating pump.
The application also provides a ship, which comprises the ship low-temperature fuel cold energy recycling system.
Compared with the prior art, the invention has the beneficial effects that:
according to the low-temperature fuel cold energy recycling system, high-quality cold energy released in the gasification process of the liquid fuel is recycled, stored and reused in the air conditioner and the refrigerating system on the ship aiming at the air supply flow of the low-temperature liquid fuel, the low-temperature fuel cold energy recycling system can operate under different operation working conditions of the ship, the electric energy consumption of the air conditioner and the refrigerating system can be effectively reduced, the total fuel consumption in the operation process of the ship is reduced, and the energy efficiency index of the ship is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a design principle of a ship low-temperature fuel cold energy recycling system in embodiment 1 of the invention.
In the figure: (description of the reference numerals)
1-a cryogenic liquefied fuel feed pump; a 2-fuel gasifier; 3-a cold accumulation pool; 4-a circulation pump; 5-a cold energy recovery heat exchanger; 6-refrigerant heater; 7-a gas heater; 8-a cold accumulation tank heat exchanger; 9-an expansion tank; 10-low temperature liquefied fuel tank; 11-gas utilization equipment; 12-an air conditioning coolant water system; 13-a fresh water cooling system; 14-a control module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Example 1
Referring to fig. 1, the present embodiment provides a technical solution, as follows:
the cold energy recycling system for the low-temperature fuel of the ship comprises a low-temperature liquefied fuel tank 10, a low-temperature liquefied fuel supply pump 1, a fuel gasifier 2, a circulating pump 4, a cold energy recycling heat exchanger 5, a refrigerant heater 6, a fuel gas heater 7, a cold accumulation tank heat exchanger 8 and a fluid pipeline;
the fuel gasifier 2, the circulating pump 4, the cold energy recovery heat exchanger 5, the refrigerant heater 6, the fuel gas heater 7 and the cold accumulation tank heat exchanger 8 are communicated through a fluid pipeline, and the fluid pipeline is filled with a refrigerant. It should be noted that the refrigerant is an intermediate material in the refrigeration process, which is first cooled by receiving the cooling energy of the refrigerant, and then other cooled materials are cooled, and the intermediate material is called as a refrigerant, and can be called as a secondary refrigerant.
In this embodiment, ethylene glycol is preferably used as the refrigerant.
In this embodiment, the output end of the low-temperature liquefied fuel tank 10 is communicated with the input end of the low-temperature liquefied fuel supply pump 1, the output end of the low-temperature liquefied fuel supply pump 1 is communicated with the input end of the fuel gasifier 2, the output end of the fuel gasifier 2 is simultaneously communicated with the input end of the cold energy recovery heat exchanger 5 and the input end of the fuel gas heater 7, and the output end of the fuel gas heater 7 is led to the gas utilization equipment 11 on the ship for use (the gas utilization equipment 11 such as a fuel host, a generator or a boiler, etc.).
In this embodiment, the output end of the cold energy recovery heat exchanger 5 is led to the on-board air conditioner coolant water system 12, while the output end of the cold energy recovery heat exchanger 5 is communicated with the input end of the cold accumulation tank heat exchanger 8, the cold accumulation tank heat exchanger 8 can act cold energy on fresh water in the cold accumulation tank 3, the output end of the cold accumulation tank heat exchanger 8 is communicated with the input end of the coolant heater 6, the output end of the coolant heater 6 is communicated with the input end of the circulation pump 4, and the output end of the circulation pump 4 is communicated with the input end of the fuel gasifier 2.
According to the low-temperature fuel cold energy recycling system, high-quality cold energy released in the gasification process of the liquid fuel is recycled, stored and reused in the air conditioner and the refrigerating system on the ship aiming at the air supply flow of the low-temperature liquid fuel, the low-temperature fuel cold energy recycling system can operate under different operation working conditions of the ship, the electric energy consumption of the air conditioner and the refrigerating system can be effectively reduced, the total fuel consumption in the operation process of the ship is reduced, and the energy efficiency index of the ship is improved.
In the present embodiment, a low-temperature liquefied fuel tank 10 is used to supply low-temperature liquefied fuel.
A low-temperature liquefied fuel supply pump 1 for pumping the low-temperature liquefied fuel in the low-temperature liquefied fuel tank 10 and delivering the low-temperature liquefied fuel to the fuel vaporizer 2.
The low-temperature liquefied fuel supply pump 1 extracts and conveys the low-temperature liquefied fuel in the low-temperature liquefied fuel tank 10 to the fuel vaporizer 2, and the fuel vaporizer 2 vaporizes the low-temperature liquefied fuel, and the vaporized low-temperature liquefied fuel becomes fuel gas, absorbs heat in the vaporization process to release high-quality cold energy, and then conveys the high-quality cold energy to the fuel gas heater 7 or the cold energy recovery heat exchanger 5.
In the present embodiment, when the fuel gas is supplied to the fuel gas heater 7, the fuel gas heater 7 can heat the fuel gas to a design operating temperature, and then supply the fuel gas to the gas using device 11 (the gas using device 11 such as a fuel main engine, a generator, a boiler, or the like) on the ship for use thereof (the design operating temperature is set according to the fuel main engine). Specifically, the waste heat generated in the fresh water cooling system 13 on the ship heats the gasified fuel gas to 20-35 ℃ and then is used for the gas utilization equipment 11. It should be noted that the waste heat is generally generated when the fuel host (the fuel host is generally a dual-fuel host) is in operation.
In this embodiment, after the fuel gas is delivered to the cold energy recovery heat exchanger 5, the refrigerant carries cold energy to flow through the cold energy recovery heat exchanger 5, the cold accumulation heat exchanger 8 and the refrigerant heater 6 in sequence through the fluid pipeline to complete cold energy exchange, and after the cold energy exchange, the fuel gas is delivered to the fuel gasifier 2 through the circulating pump 4 to complete a closed cycle.
In this embodiment, the cold energy recovery heat exchanger 5 can use the cold energy in the way to the on-board air conditioning chilled water system 12 and deliver the surplus cold energy to the cold accumulation heat exchanger 8, and the cold accumulation heat exchanger 8 can freeze and cool the fresh water in the cold accumulation tank 3 by using the surplus cold energy so as to recover and store the surplus cold energy.
In this embodiment, the surplus cold energy recovered and stored in the cold storage tank 3 can be reused in the air conditioning coolant water system 12 on the ship by the circulating pump 4, thereby realizing cold energy recovery and reuse.
In this embodiment, due to the storage function of the cold accumulation tank 3, an insulating structure is designed inside the cold accumulation tank 3 to prevent the loss of cold energy; an automatic water supplementing device is also arranged in the cold accumulation pool 3 and is used for automatically supplementing fresh water, so that automatic management is realized.
In the present embodiment, the fluid lines include a first line, a second line, a third line, a fourth line, a fifth line, a sixth line, a seventh line, and an eighth line (shown in fig. 1 and not numbered), which are specifically connected as follows:
as shown in fig. 1, the output end of the fuel gasifier 2 is communicated with the input end of the cold energy recovery heat exchanger 5 through a first pipeline, and with the input end of the fuel gas heater 7 through a second pipeline, the output end of the cold energy recovery heat exchanger 5 is communicated with the input end of the cold accumulation tank heat exchanger 8 through a third pipeline, the output end of the cold accumulation tank heat exchanger 8 is communicated with the input end of the refrigerant heater 6 through a fourth pipeline, the output end of the refrigerant heater 6 is communicated with the input end of the circulating pump 4 through a fifth pipeline, and the output end of the circulating pump 4 is communicated with the input end of the fuel gasifier 2 through a sixth pipeline. All parts in the system are communicated through connecting pipelines so as to facilitate the circulation of the low-temperature liquefied fuel.
In this embodiment, the output end of the gas heater 7 is further connected to the input end of the refrigerant heater 6 through a seventh pipe, the output end of the refrigerant heater 6 is further led to the on-board fresh water cooling system 13 through an eighth pipe, the fresh water cooling system 13 is further led to the gas heater 7, and control valves (the seventh pipe, the eighth pipe, and the control valves provided thereon are shown in fig. 1, but are not numbered) are provided between the seventh pipe and the eighth pipe. Specifically, the initial temperature of fresh water from the fresh water cooling system 13 on the ship is 50-60 ℃, the fresh water is cooled to about 45 ℃ after passing through the gas heater 7, and then cooled to about 35 ℃ after passing through the refrigerant heater 6; the refrigerant is stable at about-11 ℃ after exiting the fuel vaporizer 2, and is heated to about 0 to-4 ℃ by the refrigerant heater 6 when the cold accumulation tank 3 is not in operation or the load of the cold energy recovery heat exchanger 5 is insufficient.
It is noted that an expansion tank 9 is provided on the fifth line for controlling the pressure in the closed circuit.
In this embodiment, control valves are disposed between the first pipeline and the third pipeline, between the third pipeline and the fourth pipeline, between the fourth pipeline and the fifth pipeline, and between the sixth pipeline and the first pipeline, and each link in the closed loop is controlled to be opened or closed by the control valves. A control module 14 is also provided, the individual control valves being controlled by the control module 14 (individual control valves are shown in the figure, unnumbered since the devices they control are different).
The system work flow is as follows:
1. the low-temperature fuel in the low-temperature liquefied fuel tank 10 is conveyed to the fuel gasifier 2 for gasification through the low-temperature liquefied fuel supply pump 1, and then is heated to the designed working temperature through the gas heater 7 and then is conveyed to a ship host machine, a generator or a boiler for use (the designed working temperature is set according to the fuel host machine);
2. the low-temperature fuel transmits cold energy to a refrigerant (glycol) with a low freezing point through the fuel gasifier 2, and the water-based glycol carrying the cold energy sequentially passes through the cold energy recovery heat exchanger 5, the cold accumulation pool 3, the refrigerant heater 6 and a connected system or facility to complete cold energy exchange, and then is transmitted to the fuel gasifier 2 through the circulating pump 4 to complete closed circulation;
3. when the on-board air supply system works, the released cold energy can meet the requirements of the on-board air-conditioning coolant water system 12 through the cold energy recovery heat exchanger 5, and meanwhile, the surplus cold energy can freeze and refrigerate the fresh water in the cold accumulation pool 3 through the cold accumulation pool heat exchanger 8 so as to store the cold energy;
4. when the on-board air supply system does not work, the cold energy stored in the cold accumulation pool 3 is conveyed to the cold energy recovery heat exchanger 5 by the low-freezing-point water-based glycol through the circulating pump 4, so as to provide cold energy for the on-board air conditioner refrigerant water system 12 and recycle the cold energy.
Example 2
The present embodiment provides a technical solution, as follows:
the low-temperature fuel cold energy recycling method based on the ship low-temperature fuel cold energy recycling system in the embodiment 1 comprises the following steps: the low-temperature liquefied fuel supply pump 1 pumps the low-temperature liquefied fuel in the low-temperature liquefied fuel tank 10 and sends the low-temperature liquefied fuel to the fuel vaporizer 2;
the fuel gasifier 2 gasifies the low-temperature liquefied fuel to form fuel gas, and after the fuel gas is conveyed to the fuel gas heater 7, the fuel gas heater 7 heats the fuel gas to the designed working temperature and conveys the fuel gas to the gas utilization equipment 11 on the ship for use;
or the fuel gasifier 2 gasifies the low-temperature liquefied fuel to form fuel gas and releases cold energy, the released cold energy is transferred to the refrigerant in the fluid pipeline, and the refrigerant carrying the cold energy sequentially flows through the cold energy recovery heat exchanger 5, the cold accumulation pool heat exchanger 8 and the refrigerant heater 6 through the fluid pipeline to complete cold energy exchange, and is conveyed to the fuel gasifier 2 through the circulating pump 4 to complete a closed cycle;
the cold energy recovery heat exchanger 5 is used for the shipboard air-conditioning refrigerant water system 12, and the surplus cold energy is conveyed to the cold accumulation tank heat exchanger 8 while meeting the requirements of the shipboard air-conditioning refrigerant water system 12, and the cold accumulation tank heat exchanger 8 utilizes the surplus cold energy to freeze and refrigerate fresh water in the cold accumulation tank 3 so as to recover and store the surplus cold energy;
the surplus cold energy recovered and stored in the cold accumulation pool 3 is reused in an air conditioning coolant water system 12 on the ship through a circulating pump 4.
Example 3
The present embodiment provides another technical solution, as follows:
a ship comprises the ship low-temperature fuel cold energy recycling system disclosed in the embodiment 1, and aims at a gas supply flow of low-temperature liquid fuel, and high-quality cold energy released in the gasification process of the liquid fuel is recycled, stored and reused in an air conditioner and a refrigerating system on the ship, so that the ship can operate under different operation conditions of the ship, and the electric energy consumption of the air conditioner and the refrigerating system can be effectively reduced, thereby reducing the total fuel consumption in the operation process of the ship and improving the energy efficiency index of the ship.
The passenger ship low-temperature fuel cold energy recycling system is designed to be suitable for passenger ships with complex and changeable operation conditions, can fully recycle cold energy generated by an air supply system when a host machine using low-temperature fuel works under different loads, and provides service for an air-conditioning refrigeration system on the ship in a conveying and storing mode, so that the demand of the passenger ship air-conditioning refrigeration system on an electric power system during the work is reduced, the total fuel consumption during the ship operation is reduced, and the carbon emission control is facilitated.
The manufacture of high-end equipment is one of important development directions of the development of the ship industry in China, and a large-scale mail wheel is taken as a typical representative of the development, so that the domestic design and construction of the large-scale mail wheel are steadily advancing in the shipyard in China. The global climate problem becomes more and more severe, the International Maritime Organization (IMO) has higher and higher requirements on the energy efficiency utilization rate of the ship, and the emission limit on the ship is also more and more strict.
The invention can be directly applied to the design of a cold energy recycling system of a newly built passenger ship, and can also be used for carrying out technical improvement and upgrading on the existing passenger ship provided with a low-temperature fuel system according to the design principle, thereby achieving the effects of energy conservation and emission reduction of the passenger ship under various complex working conditions and meeting the related energy efficiency law requirements of IMO.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The system is characterized by comprising a low-temperature liquefied fuel tank (10), a low-temperature liquefied fuel supply pump (1), a fuel gasifier (2), a circulating pump (4), a cold energy recovery heat exchanger (5), a refrigerant heater (6), a fuel gas heater (7), a cold accumulation tank heat exchanger (8) and a fluid pipeline;
the fuel gasifier (2), the circulating pump (4), the cold energy recovery heat exchanger (5), the refrigerant heater (6), the fuel gas heater (7) and the cold accumulation tank heat exchanger (8) are all communicated through the fluid pipeline, and the fluid pipeline is filled with a refrigerant;
the output end of the low-temperature liquefied fuel tank (10) is communicated with the input end of the low-temperature liquefied fuel supply pump (1), the output end of the low-temperature liquefied fuel supply pump (1) is communicated with the input end of the fuel gasifier (2), the output end of the fuel gasifier (2) is simultaneously communicated with the input end of the cold energy recovery heat exchanger (5) and the input end of the fuel gas heater (7), and the output end of the fuel gas heater (7) is led to a gas utilization device (11) on a ship for use;
the output end of the cold energy recovery heat exchanger (5) is led to an on-board air conditioner coolant water system (12), meanwhile, the output end of the cold energy recovery heat exchanger (5) is communicated with the input end of the cold accumulation heat exchanger (8), the cold accumulation heat exchanger (8) can act on fresh water in the cold accumulation pond (3), the output end of the cold accumulation heat exchanger (8) is communicated with the input end of the coolant heater (6), the output end of the coolant heater (6) is communicated with the input end of the circulating pump (4), and the output end of the circulating pump (4) is communicated with the input end of the fuel gasifier (2);
the output end of the gas heater (7) is also communicated with the input end of the refrigerant heater (6), the output end of the refrigerant heater (6) is also led to a fresh water cooling system (13) on a ship, and the fresh water cooling system (13) is led to the gas heater (7);
the fluid pipeline comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, a seventh pipeline and an eighth pipeline;
the output end of the fuel gasifier (2) is communicated with the input end of the cold energy recovery heat exchanger (5) through the first pipeline, the output end of the fuel gasifier (2) is communicated with the input end of the fuel gas heater (7) through the second pipeline, the output end of the cold energy recovery heat exchanger (5) is communicated with the input end of the cold accumulation tank heat exchanger (8) through the third pipeline, the output end of the cold accumulation tank heat exchanger (8) is communicated with the input end of the refrigerant heater (6) through the fourth pipeline, the output end of the refrigerant heater (6) is communicated with the input end of the circulating pump (4) through the fifth pipeline, and the output end of the circulating pump (4) is communicated with the input end of the fuel gasifier (2) through the sixth pipeline;
the output end of the gas heater (7) is also communicated with the input end of the refrigerant heater (6) through the seventh pipeline, the output end of the refrigerant heater (6) is also led to the fresh water cooling system (13) on the ship through the eighth pipeline, the fresh water cooling system is led to the gas heater (7), and a control valve is arranged between the seventh pipeline and the eighth pipeline;
an insulating heat-preserving structure and an automatic water supplementing device are arranged in the cold accumulation pool (3);
an expansion tank (9) is arranged on the fifth pipeline.
2. The ship cryogenic fuel cold energy recycling system according to claim 1, wherein control valves are provided between the first pipeline and the third pipeline, between the third pipeline and the fourth pipeline, between the fourth pipeline and the fifth pipeline, and between the sixth pipeline and the first pipeline.
3. The marine cryogenic fuel cold energy recovery and reuse system according to claim 2, characterized in that a control module (14) is further provided for controlling each of the control valves.
4. The ship low-temperature fuel cold energy recycling system according to claim 1, wherein the refrigerant is ethylene glycol.
5. A low-temperature fuel cold energy recovery and reuse method based on the ship low-temperature fuel cold energy recovery and reuse system according to claim 1, characterized in that the low-temperature liquefied fuel supply pump (1) extracts low-temperature liquefied fuel in the low-temperature liquefied fuel tank (10) and delivers to the fuel gasifier (2);
the fuel gasifier (2) gasifies the low-temperature liquefied fuel to form fuel gas, and after the fuel gas is conveyed to the fuel gas heater (7), the fuel gas heater (7) heats the fuel gas to a designed working temperature and conveys the fuel gas to gas utilization equipment (11) on a ship for use;
the fuel gasifier (2) gasifies the low-temperature liquefied fuel to form fuel gas and releases cold energy, the released cold energy is transferred to the refrigerant in the fluid pipeline, the refrigerant carrying the cold energy sequentially flows through the cold energy recovery heat exchanger (5), the cold accumulation pool heat exchanger (8) and the refrigerant heater (6) through the fluid pipeline to complete cold energy exchange, and the refrigerant is conveyed to the fuel gasifier (2) through the circulating pump (4) to complete a closed cycle;
the cold energy recovery heat exchanger (5) is used for an on-board air-conditioning refrigerant water system (12), and the surplus cold energy is conveyed to the cold accumulation tank heat exchanger (8) while meeting the requirements of the on-board air-conditioning refrigerant water system (12), and the cold accumulation tank heat exchanger (8) utilizes the surplus cold energy to freeze and refrigerate fresh water in the cold accumulation tank (3) so as to recover and store the surplus cold energy;
the surplus cold energy recovered and stored in the cold accumulation pool (3) is reused in an air-conditioning refrigerant water system (12) on the ship through the circulating pump (4).
6. A ship comprising the ship cryogenic fuel cold energy recycling system of any one of claims 1 to 4.
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| CN202210835481.2A CN115158625B (en) | 2022-07-15 | 2022-07-15 | Ship low-temperature fuel cold energy recycling system and method and ship |
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| CN202210835481.2A CN115158625B (en) | 2022-07-15 | 2022-07-15 | Ship low-temperature fuel cold energy recycling system and method and ship |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203501591U (en) * | 2013-08-27 | 2014-03-26 | 中海石油气电集团有限责任公司 | Comprehensive cold energy utilization equipment for liquefied natural gas (LNG) fishing boat |
| JP2014104847A (en) * | 2012-11-27 | 2014-06-09 | Mitsubishi Heavy Ind Ltd | Cold use device for low-temperature liquefied fuel |
| CN204323672U (en) * | 2014-11-06 | 2015-05-13 | 青岛远洋船员职业学院 | A kind of fuel storage of LNG Power Vessel and feed system |
| KR20150062382A (en) * | 2013-11-29 | 2015-06-08 | 삼성중공업 주식회사 | System for supplying fuel gas in ships |
| CN205243570U (en) * | 2015-12-10 | 2016-05-18 | 华电电力科学研究院 | System for use multipurposely LNG energy |
| CN206158809U (en) * | 2016-09-19 | 2017-05-10 | 青岛科技大学 | System is used multipurposely to LNG power boat's cold energy |
| CN109113824A (en) * | 2018-08-15 | 2019-01-01 | 江苏科技大学 | LNG Power Vessel fuel cold energy method of comprehensive utilization and its system |
| CN208520077U (en) * | 2018-07-26 | 2019-02-19 | 青岛远洋船员职业学院 | A kind of marine vehicle cool house and air-conditioner control system using LNG cold energy |
| CN110905693A (en) * | 2019-10-16 | 2020-03-24 | 大连船舶重工集团有限公司 | High-pressure gas supply system capable of efficiently utilizing cold energy of LNG (liquefied natural gas) fuel |
| CN111366024A (en) * | 2020-04-16 | 2020-07-03 | 武彦峰 | Cold energy utilization system and method for refrigeration of LNG (liquefied Natural gas) power ship |
| CN112815574A (en) * | 2021-01-12 | 2021-05-18 | 青岛科技大学 | Cold accumulation system and method for LNG (liquefied Natural gas) power container ship |
| WO2021106984A1 (en) * | 2019-11-26 | 2021-06-03 | 三菱重工マリンマシナリ株式会社 | Cold recovery system, ship including cold recovery system, and cold recovery method |
| CN113914940A (en) * | 2021-09-23 | 2022-01-11 | 青岛科技大学 | Comprehensive energy utilization system for hydrogen fuel powered ship |
| CN215475684U (en) * | 2021-09-28 | 2022-01-11 | 青岛远洋船员职业学院 | Cold storage and air conditioning system of ammonia power ship utilizing fuel cold energy |
-
2022
- 2022-07-15 CN CN202210835481.2A patent/CN115158625B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014104847A (en) * | 2012-11-27 | 2014-06-09 | Mitsubishi Heavy Ind Ltd | Cold use device for low-temperature liquefied fuel |
| CN203501591U (en) * | 2013-08-27 | 2014-03-26 | 中海石油气电集团有限责任公司 | Comprehensive cold energy utilization equipment for liquefied natural gas (LNG) fishing boat |
| KR20150062382A (en) * | 2013-11-29 | 2015-06-08 | 삼성중공업 주식회사 | System for supplying fuel gas in ships |
| CN204323672U (en) * | 2014-11-06 | 2015-05-13 | 青岛远洋船员职业学院 | A kind of fuel storage of LNG Power Vessel and feed system |
| CN205243570U (en) * | 2015-12-10 | 2016-05-18 | 华电电力科学研究院 | System for use multipurposely LNG energy |
| CN206158809U (en) * | 2016-09-19 | 2017-05-10 | 青岛科技大学 | System is used multipurposely to LNG power boat's cold energy |
| CN208520077U (en) * | 2018-07-26 | 2019-02-19 | 青岛远洋船员职业学院 | A kind of marine vehicle cool house and air-conditioner control system using LNG cold energy |
| CN109113824A (en) * | 2018-08-15 | 2019-01-01 | 江苏科技大学 | LNG Power Vessel fuel cold energy method of comprehensive utilization and its system |
| CN110905693A (en) * | 2019-10-16 | 2020-03-24 | 大连船舶重工集团有限公司 | High-pressure gas supply system capable of efficiently utilizing cold energy of LNG (liquefied natural gas) fuel |
| WO2021106984A1 (en) * | 2019-11-26 | 2021-06-03 | 三菱重工マリンマシナリ株式会社 | Cold recovery system, ship including cold recovery system, and cold recovery method |
| CN111366024A (en) * | 2020-04-16 | 2020-07-03 | 武彦峰 | Cold energy utilization system and method for refrigeration of LNG (liquefied Natural gas) power ship |
| CN112815574A (en) * | 2021-01-12 | 2021-05-18 | 青岛科技大学 | Cold accumulation system and method for LNG (liquefied Natural gas) power container ship |
| CN113914940A (en) * | 2021-09-23 | 2022-01-11 | 青岛科技大学 | Comprehensive energy utilization system for hydrogen fuel powered ship |
| CN215475684U (en) * | 2021-09-28 | 2022-01-11 | 青岛远洋船员职业学院 | Cold storage and air conditioning system of ammonia power ship utilizing fuel cold energy |
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