CN215475684U - Cold storage and air conditioning system of ammonia power ship utilizing fuel cold energy - Google Patents

Cold storage and air conditioning system of ammonia power ship utilizing fuel cold energy Download PDF

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Publication number
CN215475684U
CN215475684U CN202122363045.3U CN202122363045U CN215475684U CN 215475684 U CN215475684 U CN 215475684U CN 202122363045 U CN202122363045 U CN 202122363045U CN 215475684 U CN215475684 U CN 215475684U
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temperature
refrigeration house
heat exchanger
low
temperature refrigeration
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贾广付
马春梅
徐海峰
田东方
仝永臣
赵建华
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QINGDAO OCEAN SHIPPING MARINERS COLLEGE
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QINGDAO OCEAN SHIPPING MARINERS COLLEGE
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Abstract

The utility model discloses a refrigeration house and an air conditioning system for an ammonia power ship by utilizing cold energy of fuel. When the ship consumes the ammonia fuel during sailing, the cold energy released by the ammonia fuel is utilized to refrigerate the refrigeration house and the air conditioner, so that the consumption of a heat source in the ammonia fuel gasification process can be reduced, the load of a ship power grid is reduced, and the reasonable utilization of energy is realized. The system is simple in structure, does not need to excessively transform a ship refrigeration house and an air conditioner structure, directly adds elements with smaller volumes into the original refrigeration house and an air conditioner refrigeration system, so that ammonia fuel absorbs heat of cargos in the refrigeration house, the ammonia fuel after heat absorption is vaporized, the temperature of the ammonia fuel is raised, a cylinder sleeve water heat source for heating the ammonia fuel is effectively saved, and then the ammonia fuel after heating can be directly used by a main diesel engine of the ship and is easily realized on the ship.

Description

Cold storage and air conditioning system of ammonia power ship utilizing fuel cold energy
Technical Field
The utility model relates to the technical field of ships, in particular to a refrigeration house and an air conditioning system of an ammonia power ship by utilizing cold energy of fuel.
Background
In the process of sailing, the ship mainly provides power for sailing by burning fuel oil, but the burning fuel oil can generate pollutants such as nitrogen oxides, sulfur oxides and the like, thereby causing serious environmental pollution. Therefore, International Maritime Organization (IMO) puts forward more strict requirements on emission of ships, and countries in the world actively seek for green development of ships, so that cleaner energy sources such as LNG (liquefied natural gas-163 ℃) and methanol are presented, wherein the LNG is actively popularized in application on ships, and the LNG fuel can effectively reduce the generation of nitrogen oxides and sulfur oxides of the ships and has a remarkable effect on emission reduction of the ships.
As is well known, ammonia is carbon-free and sulfur-free, and therefore, ammonia fuel is used in ships for sailing, carbon dioxide and nitrogen oxides are hardly produced, and carbon emission requirements can be met, so that it has been proposed that ammonia fuel can be used as an alternative fuel for ships, and in order to save fuel storage space, ammonia fuel is stored in a storage tank in a liquid state on ships, and the temperature reaches-33 ℃, and the transportation and storage costs of liquid ammonia are lower compared with LNG and other fuels requiring low-temperature storage. However, ammonia fuel and other low-temperature fuels such as LNG need to be vaporized to the supply air temperature before being sent to the ship main engine for combustion, a large amount of cold energy is released in the process, and if the cold energy of the part of fuels is directly taken away by seawater and air, the cold energy is wasted.
In order to solve the problem of food storage and improve the comfort of a ship cabin, equipment such as a cold storage (a low-temperature cold storage and a high-temperature cold storage) and an air conditioner are usually arranged on a ship, and the equipment needs to be refrigerated by a refrigerating unit, so that a large amount of electric energy of a ship power grid can be consumed.
Based on the method, if the cold energy contained in the ammonia fuel is recovered and applied to equipment such as a refrigeration house (a low-temperature refrigeration house and a high-temperature refrigeration house) and an air conditioner, the method can effectively avoid the problem of cold energy waste of the ammonia fuel and can also save the power consumption of the refrigeration house and the air conditioner to a ship power grid, so the method has good application prospect and practical application value.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a refrigeration house and an air conditioning system for an ammonia power ship to utilize cold energy of fuel. The system mainly comprises: the ammonia fuel supply system, the low temperature freezer refrigerating system, the high temperature freezer refrigerating system, air conditioner refrigerating system.
Wherein the ammonia fuel supply system includes: the system comprises an ammonia fuel storage tank, a lightering pump, a fuel conveying pipeline, a booster pump, a low-temperature refrigeration house refrigerant heat exchanger, a high-temperature refrigeration house refrigerant heat exchanger, an air conditioner refrigerant heat exchanger, a cylinder sleeve water-cooling medium heat exchanger and a main diesel engine of a ship.
The cryogenic refrigerator refrigeration system comprises: the low-temperature refrigeration house comprises a low-temperature refrigeration house refrigerant heat exchanger, a low-temperature refrigeration house pipeline, a low-temperature refrigeration house circulating pump, a first temperature relay, a first thermal bulb, a first electromagnetic valve, a first low-temperature refrigeration house heat exchanger, a second temperature relay, a second thermal bulb, a second electromagnetic valve and a second low-temperature refrigeration house heat exchanger.
The high temperature freezer refrigerating system includes: the high-temperature refrigeration house comprises a high-temperature refrigeration house refrigerant heat exchanger, a high-temperature refrigeration house pipeline, a high-temperature refrigeration house circulating pump, a third temperature relay, a third thermal bulb, a third electromagnetic valve, a first high-temperature refrigeration house heat exchanger, a fourth temperature relay, a fourth thermal bulb, a fourth electromagnetic valve and a second high-temperature refrigeration house heat exchanger.
The air conditioning refrigeration system includes: air conditioner refrigerant heat exchanger, air conditioner circulating pump, air cooler, air conditioner pipeline.
In the ammonia fuel supply system, the ammonia fuel storage tank, the lightering pump, the booster pump, the low-temperature cold storage refrigerant heat exchanger, the high-temperature cold storage refrigerant heat exchanger, the air-conditioning refrigerant heat exchanger, the cylinder sleeve water-cooling medium heat exchanger and the main diesel engine of the ship are sequentially connected through a fuel conveying pipeline.
In the low-temperature refrigeration house refrigerating system, the low-temperature refrigeration house refrigerant heat exchanger, the low-temperature refrigeration house circulating pump, the first low-temperature refrigeration house heat exchanger and the first electromagnetic valve are sequentially connected through a low-temperature refrigeration house pipeline; the first temperature bulb is arranged in the first low-temperature refrigeration house to measure the temperature, and the first temperature relay is connected with the first temperature bulb and used for controlling the switch of the first electromagnetic valve; one end of the second electromagnetic valve is connected with the second low-temperature freezer heat exchanger through a low-temperature freezer pipeline, and the other end of the second electromagnetic valve is connected with a pipeline between the low-temperature freezer refrigerant heat exchanger and the first electromagnetic valve; the outlet of the second low-temperature freezer heat exchanger is connected with a pipeline between the low-temperature freezer circulating pump and the first low-temperature freezer heat exchanger; the second temperature bulb is arranged in the second low-temperature refrigeration house to measure the temperature, and the second temperature relay is connected with the second temperature bulb and used for controlling the switch of the second electromagnetic valve.
In the high-temperature refrigeration house refrigerating system, the high-temperature refrigeration house refrigerant heat exchanger, the high-temperature refrigeration house circulating pump, the first high-temperature refrigeration house heat exchanger and the third electromagnetic valve are sequentially connected through a high-temperature refrigeration house pipeline; the third temperature bulb is arranged in the first high-temperature refrigeration house to measure the temperature, and the third temperature relay is connected with the third temperature bulb and used for controlling the switch of the third electromagnetic valve; one end of the fourth electromagnetic valve is connected with the second high-temperature freezer heat exchanger through a high-temperature freezer pipeline, and the other end of the fourth electromagnetic valve is connected with a pipeline between the high-temperature freezer refrigerant heat exchanger and the third electromagnetic valve; the outlet of the second high-temperature freezer heat exchanger is connected with a pipeline between the high-temperature freezer circulating pump and the first high-temperature freezer heat exchanger; the fourth temperature bulb is arranged in the second high-temperature refrigeration house to measure the temperature, and the fourth temperature relay is connected with the fourth temperature bulb and used for controlling the switch of the fourth electromagnetic valve.
In the air-conditioning refrigeration system, the air-conditioning refrigerant heat exchanger, the air cooler and the air-conditioning circulating pump are sequentially connected through an air-conditioning pipeline.
In the ship navigation process, liquid ammonia fuel in the ammonia fuel storage tank is refuted out through refuting the fortune pump, and the fuel conveying pipeline that flows through reaches the booster pump, carries out the pressure boost through the booster pump, and low temperature freezer refrigerant heat exchanger, high temperature freezer refrigerant heat exchanger, air conditioner refrigerant heat exchanger, cylinder liner water-cooling medium heat exchanger are flowed through in proper order to rethread fuel conveying pipeline, and the cylinder liner water that recycles heaies up the ammonia, satisfies the inlet air temperature of boats and ships main diesel engine, supplies boats and ships main diesel engine to use.
The refrigerant used in the low-temperature freezer refrigeration system is a 50% glycol solution, the refrigerant absorbs ammonia fuel cold energy in a low-temperature freezer refrigerant heat exchanger, and the cold energy is released in a first low-temperature freezer and a second low-temperature freezer through a low-temperature freezer circulating pump; the first temperature relay measures the temperature in the first low-temperature refrigerator through the first temperature bulb, controls the switch of the first electromagnetic valve, when the temperature in the first low-temperature refrigerator is greater than the upper limit value of the design temperature, the first electromagnetic valve is opened, and when the temperature in the first low-temperature refrigerator is less than the lower limit value of the design temperature, the first electromagnetic valve is closed; and the second temperature relay measures the temperature in the second low-temperature refrigerator through the second temperature bulb, controls the switch of the second electromagnetic valve, opens the second electromagnetic valve when the temperature in the second low-temperature refrigerator is greater than the upper limit value of the design temperature, and closes the second electromagnetic valve when the temperature in the second low-temperature refrigerator is less than the lower limit value of the design temperature.
The refrigerant used in the high-temperature refrigeration house refrigerating system is 50% glycol solution, the refrigerant absorbs ammonia fuel cold energy in a high-temperature refrigeration house refrigerant heat exchanger, and the cold energy is released in a first high-temperature refrigeration house and a second high-temperature refrigeration house through a high-temperature refrigeration house circulating pump; the third temperature relay measures the temperature in the first high-temperature refrigerator through a third temperature bulb, controls the on-off of a third electromagnetic valve, when the temperature in the first high-temperature refrigerator is greater than the upper limit value of the design temperature, the third electromagnetic valve is opened, and when the temperature in the first high-temperature refrigerator is less than the lower limit value of the design temperature, the third electromagnetic valve is closed; and the fourth temperature relay measures the temperature in the second high-temperature refrigerator through a fourth temperature bulb, controls the switch of the fourth electromagnetic valve, opens the fourth electromagnetic valve when the temperature in the second high-temperature refrigerator is greater than the upper limit value of the design temperature, and closes the fourth electromagnetic valve when the temperature in the second high-temperature refrigerator is less than the lower limit value of the design temperature.
The refrigerant used in the air-conditioning refrigeration system is 50% glycol solution, and under the circulating action of an air-conditioning circulating pump, the air-conditioning refrigerant heat exchanger absorbs ammonia fuel cold energy and releases the cold energy through an air cooler.
The utility model has the advantages that:
1. the utility model effectively avoids the problem of cold energy waste of the ammonia fuel by refrigerating the ship refrigerator and the air conditioner by using the cold energy of the ammonia fuel, fully utilizes the energy, reduces the load of a ship power grid, reduces the consumption of the fuel and reduces the operation cost of the ship.
2. The system has a simple structure, does not need to excessively modify the structures of a ship cold storage and an air conditioner, directly adds elements with smaller volumes into the original cold storage and the original air conditioner refrigerating system, ensures that the ammonia fuel absorbs the heat of goods in the cold storage, the ammonia fuel after absorbing the heat is vaporized, the temperature of the ammonia fuel is increased, effectively saves a cylinder sleeve water heat source for heating the ammonia fuel, and then the heated ammonia fuel can be directly used by a main diesel engine of the ship. The utility model is easy to realize on the ship and has lower modification cost.
3. The system provided by the utility model provides a novel energy utilization form of the ammonia fuel, can keep the original refrigeration systems of the cold storage and the air conditioner while refrigerating the cold energy of the ammonia fuel, provides support for promoting the application of the ammonia fuel in ships, and promotes the early realization of the carbon neutralization target, so that the system has a good application prospect.
Drawings
FIG. 1 is a system diagram of the present invention;
FIG. 2 is a schematic view of the installation location of the ammonia fuel storage tank on the vessel;
in the drawings: 1. an ammonia fuel storage tank; 2. a lightering pump; 3. a fuel delivery line; 4. a booster pump; 5. a low-temperature refrigeration house refrigerant heat exchanger; 6. a high-temperature cold storage refrigerant heat exchanger; 7. an air-conditioning refrigerant heat exchanger; 8. a cylinder sleeve water cooling medium heat exchanger; 9. a marine main diesel engine; 10. a low temperature freezer pipeline; 11. a low-temperature refrigeration house circulating pump; 12. a first temperature relay; 13. a first thermal bulb; 14. a first solenoid valve; 15. a first cryogenic refrigerator heat exchanger; 16. a second temperature relay; 17. a second thermal bulb; 18. a second solenoid valve; 19. a second low-temperature freezer heat exchanger; 20. a high temperature freezer pipeline; 21. a high temperature freezer circulating pump; 22. a third temperature relay; 23. a third thermal bulb; 24. a third electromagnetic valve; 25. a first high temperature freezer heat exchanger; 26. a fourth temperature relay; 27. a fourth thermal bulb; 28. a fourth solenoid valve; 29. a second high temperature freezer heat exchanger; 30. an air-conditioning circulation pump; 31. an air cooler; 32. an air conditioning pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples.
A cold storage and air conditioning system for an ammonia-powered ship using cold energy of fuel, as shown in fig. 1, the system mainly comprises: the ammonia fuel supply system, the low temperature freezer refrigerating system, the high temperature freezer refrigerating system, air conditioner refrigerating system.
Wherein the ammonia fuel supply system includes: the system comprises an ammonia fuel storage tank 1, a lightering pump 2, a fuel conveying pipeline 3, a booster pump 4, a low-temperature refrigeration house refrigerant heat exchanger 5, a high-temperature refrigeration house refrigerant heat exchanger 6, an air conditioner refrigerant heat exchanger 7, a cylinder sleeve water-cooling medium heat exchanger 8 and a ship main diesel engine 9. In the ammonia fuel supply system, the fuel conveying pipeline 3 is sequentially connected with an ammonia fuel storage tank 1, a lightering pump 2, a booster pump 4, a low-temperature refrigeration house refrigerant heat exchanger 5, a high-temperature refrigeration house refrigerant heat exchanger 6, an air-conditioning refrigerant heat exchanger 7, a cylinder sleeve water-cooling medium heat exchanger 8 and a ship main diesel engine 9.
The cryogenic refrigerator refrigeration system comprises: the low-temperature refrigeration house comprises a low-temperature refrigeration house refrigerant heat exchanger 5, a low-temperature refrigeration house pipeline 10, a low-temperature refrigeration house circulating pump 11, a first temperature relay 12, a first temperature bulb 13, a first electromagnetic valve 14, a first low-temperature refrigeration house heat exchanger 15, a second temperature relay 16, a second temperature bulb 17, a second electromagnetic valve 18 and a second low-temperature refrigeration house heat exchanger 19. In the low-temperature refrigeration house refrigerating system, a low-temperature refrigeration house refrigerant heat exchanger 5, a low-temperature refrigeration house circulating pump 11, a first low-temperature refrigeration house heat exchanger 15 and a first electromagnetic valve 14 are sequentially connected through a low-temperature refrigeration house pipeline 10; the first bulb 13 is arranged in a first low-temperature refrigeration house to measure the temperature, and the first temperature relay 12 is connected with the first bulb 13 and used for controlling the on-off of the first electromagnetic valve 14; one end of the second electromagnetic valve 18 is connected with a second low-temperature freezer heat exchanger 19 through a low-temperature freezer pipeline 10, and the other end of the second electromagnetic valve is connected with a pipeline between the low-temperature freezer refrigerant heat exchanger 5 and the first electromagnetic valve 14; the outlet of the second low-temperature freezer heat exchanger 19 is connected with a pipeline between the low-temperature freezer circulating pump 11 and the first low-temperature freezer heat exchanger 15; the second bulb 17 is arranged in the second low-temperature refrigeration house to measure the temperature, and the second temperature relay 16 is connected with the second bulb 17 and used for controlling the on-off of the second electromagnetic valve 18.
The high temperature freezer refrigerating system includes: the high-temperature refrigeration house comprises a high-temperature refrigeration house refrigerant heat exchanger 6, a high-temperature refrigeration house pipeline 20, a high-temperature refrigeration house circulating pump 21, a third temperature relay 22, a third thermal bulb 23, a third electromagnetic valve 24, a first high-temperature refrigeration house heat exchanger 25, a fourth temperature relay 26, a fourth thermal bulb 27, a fourth electromagnetic valve 28 and a second high-temperature refrigeration house heat exchanger 29. In the high-temperature refrigeration house refrigerating system, the high-temperature refrigeration house refrigerant heat exchanger 6, the high-temperature refrigeration house circulating pump 21, the first high-temperature refrigeration house heat exchanger 25 and the third electromagnetic valve 24 are sequentially connected through a high-temperature refrigeration house pipeline 20; the third temperature bulb 23 is arranged in the first high-temperature refrigeration house to measure the temperature, and the third temperature relay 22 is connected with the third temperature bulb 23 and used for controlling the on-off of the third electromagnetic valve 24; one end of the fourth electromagnetic valve 28 is connected with the second high-temperature freezer heat exchanger 29 through the high-temperature freezer pipeline 20, and the other end is connected with a pipeline between the high-temperature freezer refrigerant heat exchanger 6 and the third electromagnetic valve 24; the outlet of the second high-temperature freezer heat exchanger 29 is connected with a pipeline between the high-temperature freezer circulating pump 21 and the first high-temperature freezer heat exchanger 25; the fourth bulb 27 is arranged in the second high-temperature refrigerator to measure the temperature, and the fourth temperature relay 26 is connected with the fourth bulb 27 and used for controlling the on and off of the fourth electromagnetic valve 28.
The air conditioning refrigeration system includes: air-conditioning refrigerant heat exchanger 7, air-conditioning circulating pump 30, air cooler 31, air-conditioning pipeline 32. In the air-conditioning refrigeration system, the air-conditioning refrigerant heat exchanger 7, the air cooler 31 and the air-conditioning circulating pump 30 are sequentially connected through an air-conditioning pipeline 32.
To save fuel storage space, ammonia fuel is stored on board the vessel in a liquid state in the ammonia fuel tank 1 as shown in fig. 2, at a temperature of-33 ℃. In the boats and ships navigation process, the liquid ammonia fuel in ammonia fuel storage tank 1 is refuted out through refute pump 2, fuel delivery pipeline 3 that flows through reaches booster pump 4, carry out the pressure boost through booster pump 4, rethread fuel delivery pipeline 3 flows through low temperature freezer refrigerant heat exchanger 5 in proper order, high temperature freezer refrigerant heat exchanger 6, air conditioner refrigerant heat exchanger 7, cylinder liner water-cooling medium heat exchanger 8, it heaies up to utilize the cylinder liner water to the ammonia again, satisfy the inlet air temperature of boats and ships main diesel engine 9, supply boats and ships main diesel engine 9 to burn.
The refrigerant used in the low-temperature refrigeration house refrigerating system is 50% glycol solution, the refrigerant absorbs ammonia fuel cold energy in a low-temperature refrigeration house refrigerant heat exchanger 5, and the cold energy is released in a first low-temperature refrigeration house and a second low-temperature refrigeration house through a low-temperature refrigeration house circulating pump 11; the first temperature relay 12 measures the temperature in the first low-temperature refrigerator through the first temperature bulb 13, controls the on-off of the first electromagnetic valve 14, when the temperature in the first low-temperature refrigerator is greater than the upper limit value of the design temperature, the first electromagnetic valve 14 is opened, the refrigerant flows into the first low-temperature refrigerator heat exchanger 15 to refrigerate the first low-temperature refrigerator, when the temperature in the first low-temperature refrigerator is less than the lower limit value of the design temperature, the first electromagnetic valve 14 is closed, the supply of the refrigerant is stopped, and the temperature in the first low-temperature refrigerator rises; the second temperature relay 16 measures the temperature in the second low-temperature refrigerator through the second temperature bulb 17, controls the on-off of the second electromagnetic valve 18, when the temperature in the second low-temperature refrigerator is larger than the design temperature upper limit value, the second electromagnetic valve 18 is opened, the refrigerant flows into the second low-temperature refrigerator heat exchanger 19 to refrigerate the second low-temperature refrigerator, and when the temperature in the second low-temperature refrigerator is smaller than the design temperature lower limit value, the second electromagnetic valve 18 is closed, the supply of the refrigerant is stopped, and the temperature in the second low-temperature refrigerator rises.
The refrigerant used in the high-temperature freezer refrigeration system is a 50% glycol solution, the refrigerant absorbs ammonia fuel cold energy in a high-temperature freezer refrigerant heat exchanger 6, and the cold energy is released in a first high-temperature freezer and a second high-temperature freezer through a high-temperature freezer circulating pump 21; the third temperature relay 22 measures the temperature in the first high-temperature refrigerator through the third temperature bulb 23, controls the on-off of the third electromagnetic valve 24, when the temperature in the first high-temperature refrigerator is greater than the upper limit value of the design temperature, the third electromagnetic valve 24 is opened, the refrigerant flows into the first high-temperature refrigerator heat exchanger 25 to refrigerate the first high-temperature refrigerator, when the temperature in the first high-temperature refrigerator is less than the lower limit value of the design temperature, the third electromagnetic valve 24 is closed, the supply of the refrigerant is stopped, and the temperature in the first high-temperature refrigerator rises; the fourth temperature relay 26 measures the temperature in the second high-temperature refrigerator through the fourth thermal bulb 27, controls the on/off of the fourth electromagnetic valve 28, when the temperature in the first high-temperature refrigerator is greater than the design temperature upper limit value, the fourth electromagnetic valve 28 is opened, the refrigerant flows into the second high-temperature refrigerator heat exchanger 29 to refrigerate the second high-temperature refrigerator, and when the temperature in the second high-temperature refrigerator is less than the design temperature lower limit value, the fourth electromagnetic valve 28 is closed, the supply of the refrigerant is stopped, and the temperature in the second high-temperature refrigerator rises.
The refrigerant used in the air-conditioning refrigeration system is 50% glycol solution, and under the circulating action of an air-conditioning circulating pump 30, the air-conditioning refrigerant heat exchanger 7 absorbs the cold energy of ammonia fuel and releases the cold energy through an air cooler 31.
The structure of this system is fairly simple, need not carry out too much transformation to boats and ships freezer and air conditioner structure, directly add the less component of volume in original freezer and air conditioner refrigerating system, let the ammonia fuel get into refrigeration cycle, absorb the heat of goods in the freezer, the ammonia fuel after the heat absorption is vaporized, ammonia fuel temperature rises, the heat source when effectively having saved cylinder liner water heating ammonia fuel, the ammonia fuel after the heating can directly supply boats and ships main diesel engine 9 to use afterwards, relatively easy realization on boats and ships, and the transformation cost is lower.
The foregoing is merely a preferred embodiment of the present invention and the specific embodiments described herein are merely illustrative of the utility model and are not intended to be limiting. It should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.

Claims (5)

1. The utility model provides an ammonia power boats and ships utilize freezer and air conditioning system of fuel cold energy which characterized in that: the system comprises an ammonia fuel supply system, a low-temperature refrigeration house refrigerating system, a high-temperature refrigeration house refrigerating system and an air-conditioning refrigerating system;
wherein the ammonia fuel supply system includes: the system comprises an ammonia fuel storage tank (1), a lightering pump (2), a fuel conveying pipeline (3), a booster pump (4), a low-temperature refrigeration house refrigerant heat exchanger (5), a high-temperature refrigeration house refrigerant heat exchanger (6), an air conditioner refrigerant heat exchanger (7), a cylinder sleeve water-cooling medium heat exchanger (8) and a ship main diesel engine (9);
in the ammonia fuel supply system, the fuel conveying pipeline (3) is sequentially connected with an ammonia fuel storage tank (1), a lightering pump (2), a booster pump (4), a low-temperature refrigeration house refrigerant heat exchanger (5), a high-temperature refrigeration house refrigerant heat exchanger (6), an air-conditioning refrigerant heat exchanger (7), a cylinder sleeve water-cooling medium heat exchanger (8) and a ship main diesel engine (9);
the cryogenic refrigerator refrigeration system comprises: the low-temperature refrigeration house comprises a low-temperature refrigeration house refrigerant heat exchanger (5), a low-temperature refrigeration house pipeline (10), a low-temperature refrigeration house circulating pump (11), a first temperature relay (12), a first temperature bulb (13), a first electromagnetic valve (14), a first low-temperature refrigeration house heat exchanger (15), a second temperature relay (16), a second temperature bulb (17), a second electromagnetic valve (18) and a second low-temperature refrigeration house heat exchanger (19);
the high temperature freezer refrigerating system includes: the high-temperature refrigeration house comprises a high-temperature refrigeration house refrigerant heat exchanger (6), a high-temperature refrigeration house pipeline (20), a high-temperature refrigeration house circulating pump (21), a third temperature relay (22), a third thermal bulb (23), a third electromagnetic valve (24), a first high-temperature refrigeration house heat exchanger (25), a fourth temperature relay (26), a fourth thermal bulb (27), a fourth electromagnetic valve (28) and a second high-temperature refrigeration house heat exchanger (29);
the air conditioning refrigeration system includes: the air conditioner comprises an air conditioner refrigerant heat exchanger (7), an air conditioner circulating pump (30), an air cooler (31) and an air conditioner pipeline (32).
2. The ammonia-powered vessel cold storage and air conditioning system using cold energy of fuel according to claim 1, wherein: in the low-temperature refrigeration house refrigerating system, the low-temperature refrigeration house refrigerant heat exchanger (5), the low-temperature refrigeration house circulating pump (11), the first low-temperature refrigeration house heat exchanger (15) and the first electromagnetic valve (14) are sequentially connected through a low-temperature refrigeration house pipeline (10); the first temperature bulb (13) is arranged in the first low-temperature refrigeration house, and the first temperature relay (12) is connected with the first temperature bulb (13); one end of the second electromagnetic valve (18) is connected with a second low-temperature freezer heat exchanger (19) through a low-temperature freezer pipeline (10), and the other end of the second electromagnetic valve is connected with a pipeline between the low-temperature freezer refrigerant heat exchanger (5) and the first electromagnetic valve (14); the outlet of the second low-temperature freezer heat exchanger (19) is connected with a pipeline between the low-temperature freezer circulating pump (11) and the first low-temperature freezer heat exchanger (15); the second temperature bulb (17) is arranged in the second low-temperature refrigeration house, and the second temperature relay (16) is connected with the second temperature bulb (17).
3. The ammonia-powered vessel cold storage and air conditioning system using cold energy of fuel according to claim 1, wherein: in the high-temperature refrigeration house refrigerating system, the high-temperature refrigeration house refrigerant heat exchanger (6), the high-temperature refrigeration house circulating pump (21), the first high-temperature refrigeration house heat exchanger (25) and the third electromagnetic valve (24) are sequentially connected through a high-temperature refrigeration house pipeline (20); the third thermal bulb (23) is arranged in the first high-temperature refrigeration house, and the third temperature relay (22) is connected with the third thermal bulb (23); one end of the fourth electromagnetic valve (28) is connected with the second high-temperature freezer heat exchanger (29) through a high-temperature freezer pipeline (20), and the other end of the fourth electromagnetic valve is connected with a pipeline between the high-temperature freezer refrigerant heat exchanger (6) and the third electromagnetic valve (24); the outlet of the second high-temperature freezer heat exchanger (29) is connected with a pipeline between the high-temperature freezer circulating pump (21) and the first high-temperature freezer heat exchanger (25); the fourth temperature bulb (27) is arranged in the second high-temperature cold storage, and the fourth temperature relay (26) is connected with the fourth temperature bulb (27).
4. The ammonia-powered vessel cold storage and air conditioning system using cold energy of fuel according to claim 1, wherein: in the air-conditioning refrigeration system, the air-conditioning refrigerant heat exchanger (7), the air cooler (31) and the air-conditioning circulating pump (30) are sequentially connected through an air-conditioning pipeline (32).
5. The ammonia-powered vessel cold storage and air conditioning system using cold energy of fuel according to claim 1, wherein: the refrigerant used in the low-temperature refrigeration house refrigerating system, the high-temperature refrigeration house refrigerating system and the air-conditioning refrigerating system is 50% glycol solution.
CN202122363045.3U 2021-09-28 2021-09-28 Cold storage and air conditioning system of ammonia power ship utilizing fuel cold energy Active CN215475684U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114715330A (en) * 2022-04-25 2022-07-08 广船国际有限公司 Dual-fuel oil tanker
CN114954798A (en) * 2022-07-07 2022-08-30 广东海洋大学 Liquefied carbon dioxide carrier cargo hold heat preservation system utilizing ammonia fuel cold energy
CN115158625A (en) * 2022-07-15 2022-10-11 上海外高桥造船有限公司 System and method for recycling cold energy of low-temperature fuel of ship and ship

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114715330A (en) * 2022-04-25 2022-07-08 广船国际有限公司 Dual-fuel oil tanker
CN114954798A (en) * 2022-07-07 2022-08-30 广东海洋大学 Liquefied carbon dioxide carrier cargo hold heat preservation system utilizing ammonia fuel cold energy
CN115158625A (en) * 2022-07-15 2022-10-11 上海外高桥造船有限公司 System and method for recycling cold energy of low-temperature fuel of ship and ship
CN115158625B (en) * 2022-07-15 2024-04-16 上海外高桥造船有限公司 Ship low-temperature fuel cold energy recycling system and method and ship

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