CN104354847A - Efficient marine seawater source heat pump air conditioning system and control method thereof - Google Patents

Efficient marine seawater source heat pump air conditioning system and control method thereof Download PDF

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Publication number
CN104354847A
CN104354847A CN201410532794.6A CN201410532794A CN104354847A CN 104354847 A CN104354847 A CN 104354847A CN 201410532794 A CN201410532794 A CN 201410532794A CN 104354847 A CN104354847 A CN 104354847A
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heat
seawater
conditioning system
electric
air
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CN104354847B (en
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赵忠超
丰威仙
张娇娇
周根明
杨兴林
秦伯进
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Jiangsu University of Science and Technology
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Jiangsu University of Science and Technology
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00Maritime or waterways transport

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Abstract

The invention discloses an efficient marine seawater source heat pump air conditioning system and a control method thereof. The system comprises a seawater loop, a refrigerant loop, a heat recovery loop and an electric cabinet; refrigeration in summer and heating in winter are realized through the switch of operating modes. The method comprises the following steps: when a ship navigates, the waste heat discharged by the ship is fully utilized to preheat low-temperature seawater; when the ship lies at anchor, an oil burning boiler is utilized to preheat the low-temperature seawater to realize normal or efficient operation of the marine seawater source heat pump air conditioning system in low-temperature sea area or at anchoring. According to the invention, not only the technical defect that conventional marine seawater source heat pump air conditioning systems cannot operate in all weather and in all sea areas is overcome, but also the use ratio of the ship energy is further improved by efficiently recovering and utilizing the waste heat discharged by the ship; the air conditioning system is low in energy consumption and emission, and high in energy efficiency.

Description

A kind of efficient seawater source heat pump air-conditioning system for ship and control method thereof
Technical field
The present invention relates on a kind of boats and ships and use heat pump techniques, specifically obtain heat pump that is energy-efficient, environmental protection with lower cost, particularly relate to a kind of recovery type heat highly effective sea-water source heat pump making full use of the changeable control of Ship Waste Heat, belong to air conditioner technology field.
Technical background
Along with improving constantly of global economic integration degree, world's freight traffic volume more than 90% mainly through boats and ships, consuming a large amount of fossil energies, is the principal element causing marine pollution.How to realize the energy efficiency of shipping transport, improve shipping transport comprehensive energy efficiency coefficient, reduce the discharge of pollutants, become the important topic that shipping community more and more pays close attention to.As the marine air-conditioning system accounting for boats and ships energy consumption 20%, realize it by adopting novel ship air-conditioning technical and save energy and reduce the cost, significant to the raising of shipping transport comprehensive energy efficiency coefficient.Seawater source heat pump technology adapts to the strategy of sustainable development to require and a kind of novel a/c system integrating refrigeration, heat of development to have advantage that is energy-efficient, environmental protection.
At present, marine air conditioner uses conventional air-cooled or water-cooling system substantially, and minority marine air conditioner utilizes seawater to do Cooling and Heat Source.Application number is the patent of 201120030749.2, discloses a kind of seawater source heat pump air-conditioning system for ship, forms primarily of refrigerant-cycle systems, hull bottom heat transferring medium cyclic system and air-conditioner water system.This a/c system is that the integrated circuit that polyethylene coil pipe is formed is arranged on hull bottom, the medium of seawater directly and in coil pipe is made to carry out heat exchange, simultaneously due to the turbulent flow formed of running at high speed of steamer, greatly strengthen the heat exchange efficiency of coil pipe, reach energy-efficient object in theory.But the real-world operation effect of this system need discussion.First, ship's speed is comparatively large on the impact of the heat exchange efficiency of coil pipe, when marine low speed travels or when berthing, the heat exchange efficiency of coil pipe reduces rapidly, and then causes the whole efficiency of this a/c system significantly to reduce.Secondly, in Practical Project, boats and ships belong to flowing carrier, and different with its navigable zone, the temperature of the low-temperature heat source (seawater) of heat pump constantly changes, when boats and ships walk to the marine site of sea temperature lower than 10 DEG C, this a/c system normally can not run and even cannot run.
Application number is the patent of 201220622911.4, discloses a kind of waste heat recovery distributed energy and sea-water heat-pump coupled system, and this system is gas engine gas-firing drive electrical generators, and electrical power generators drives heat pump to produce a part of heat; The flue gas that gas engine produces simultaneously enters into waste heat boiler, condensing heat exchanger and absorption heat pump absorb the flue gas and steam that waste heat boiler gives off respectively, in condensing heat exchanger liberated heat input absorption heat pump, thus another part heat is provided, improve the whole efficiency of system to a certain extent, reach the object of energy-conserving and environment-protective, but in fact unsatisfactory.First, this system waste heat recovery utilization rate is lower, and medium water temperature only improves 2 DEG C, and system effectiveness improves about 6%, and energy-saving effect is also not obvious.Secondly, during Ship Anchoring, main frame quits work, now recyclable without waste heat, and the difficult problem that sea temperature is low still exists, and this system still cannot be run in the marine site that sea temperature is low.And the volume of automotive gas turbine is very large, and be generally used on the large boats and ships of displacement, field of application is restricted.The boats and ships of the current overwhelming majority all using the reciprocating diesel engines in combustion engine as main frame, for boats and ships provide power.Ship Waste Heat resource is extremely abundant, and main frame is as the power and energy center of boats and ships, and only have the heat of 50% to be converted to useful work, remaining heat is then pulled away in every way, is mainly divided into jacket cooling waste heat and diesel engine exhaust waste heat two kinds of forms.Marine main engine is a few megawatt even high-power diesel engine of up to ten thousand kilowatts, and the temperature of its jacket cooling is 70 DEG C ~ 95 DEG C, its funnel temperature 300 DEG C ~ 450 DEG C; And generator power is the medium speed diesel engine of 200kW ~ 400kW, the temperature of its cooling water expansion tank is 65 DEG C ~ 80 DEG C, and funnel temperature is 300 DEG C ~ 400 DEG C.These waste heats all can as the auxiliary thermal source of sea water source heat pump.Therefore, land technology Marine very had Practical significance.
Summary of the invention
The object of the invention is for the defect existing for above-mentioned prior art and problem, propose by rational control policy, make full use of amount of heat during vessel operation, the used heat of air is drained into again in conjunction with the main and auxiliary machine of boats and ships (diesel engine), summer is by the heavy oil on this heat heating domestic water and boats and ships, winter is then that seawater preheating is to improve the temperature of low-temperature heat source, maximum using resource provides the energy of high-quality for boats and ships, for the crewman on boats and ships provides the a/c system of a kind of more high efficiency and more low cost.
Efficient seawater source heat pump air-conditioning system for ship of the present invention makes full use of navigation condition of ship, inexhaustible seawater heat is fully utilized, reclaim the used heat of main and auxiliary machine discharge during ship's navigation again, by rational system control strategy, waste heat on maximum using boats and ships, overcome the shortcoming that low temperature marine site heats difficulty, the system that ensures all can normal even Effec-tive Function when low temperature marine site and anchoring, improves the work efficiency of diesel engine and reduces used heat to the pollution of environment.Realize marine air-conditioning system round-the-clock, full marine site Effec-tive Function, reduce the discharge of boats and ships used heat, improve the object of shipping transport comprehensive energy efficiency coefficient.
For realizing above-mentioned object, the present invention adopts following technical scheme:
A kind of efficient seawater source heat pump air-conditioning system for ship, is made up of sea return, refrigerant loop, heat recovery circuit and electric cabinet 5.Wherein, described sea return is connected and composed successively by sea water pump 1, water treatment equipment 2, first electric T-shaped valve 3, First Heat Exchanger 4, the 3rd electric T-shaped valve 22, second heat exchanger 19, evaporator 17.Described refrigerant loop is made up of the compressor 24 connected successively, condenser 13, throttle mechanism 16 and evaporator 17.Heat recover of the present invention is mainly divided into jacket cooling waste heat and diesel engine exhaust waste heat two kinds of forms.Diesel engine 12 produces the jacket water that heat is passed to diesel engine 12 inner passage, and jacket water transfers heat to seawater by First Heat Exchanger 4; Exhaust waste heat when diesel engine 12 works enters Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 by pipeline and heats, and the saturated steam of generation is through the second heat exchanger 19 and seawater to make heat exchange.Described heat recovery circuit is made up of diesel engine 12, first circulation pump 11, second electric T-shaped valve 9, First Heat Exchanger 4, Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 and the second heat exchanger 19.Wherein, Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23, except fuel Heating produces saturated steam, also reclaims diesel engine 12 exhaust heat and produces steam.This boiler is mainly used in the temperature raising medium of heavy oil, main engine jacket water, cargo tank, domestic water and air-conditioning etc. on boats and ships, and it has positive meaning to energy-saving and emission-reduction and raising marine fuel oil net effciency.Outside described electric cabinet is connected with first, second, third electric T-shaped valve 3,9,22 respectively, be also connected with detection air humidity sensor 6, air-temperature pickup 7, sea temperature sensor 8 and hot water temperature sensor 18 respectively.
Described thermal source is in series by seawater, jacket cooling and steam, and described water treatment equipment 2 are connected with the import of the first electric T-shaped valve 3, and described first electric T-shaped valve 3 liang outlet is connected with described First Heat Exchanger 4 and the 3rd bypass arm 21 respectively; Described diesel engine 12 is connected with the import of the second electric T-shaped valve 9 and Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 respectively, described second electric T-shaped valve 9 liang outlet is connected with described First Heat Exchanger 4 and the first bypass arm 10 respectively, and the outlet of described Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 is connected with the second heat exchanger 19; Described First Heat Exchanger 4 is connected with the import of the 3rd electric T-shaped valve 22 with the mixed export of the 3rd bypass arm 21, and the second described heat exchanger 19 and the import of the second bypass arm 20 export with described 3rd electric T-shaped valve 22 liang respectively and be connected.
The control method of efficient seawater source heat pump air-conditioning system for ship of the present invention, in Various Seasonal, different times, the control method of different waters determination auxiliary thermal source, specifically comprises the following steps: (1) detects air themperature T in real time by air-temperature pickup 7 ring, then the mean temperature T on the same day is gone out according to local real-time time COMPREHENSIVE CALCULATING empty flat, detect sea temperature T in real time by sea temperature sensor 8 sea, detect air humidity R in real time by air humidity sensor 6, detect hot water temperature T in real time by hot water temperature sensor 18 heat; By surveyed air humidity R and the average air temperature T calculated empty flat, determine the season at place at that time;
(2) according to the air humidity setting value of local geographical environment determination winter and summer, when air humidity reaches setting value in summer, and T empty flat>=25 DEG C are then judged to be summer, realize a/c system refrigeration mode; When air humidity is less than setting value in winter, and T empty flat≤ 15 DEG C are then judged to winter, realize a/c system heating mode; When air humidity is non-setting value, and 15 DEG C of < T empty flat< 25 DEG C is then judged to be transition season;
(3) according to the sea temperature detected, hot water temperature and determined season, the control method of auxiliary thermal source is determined.Hot water temperature sensor 18 detects the sea temperature after heating, determines the start and stop of auxiliary thermal source, and the opening and closing of the first, the 3rd electric T-shaped valve 3,22.
The main Three models of operation of efficient seawater source heat pump air-conditioning system for ship of the present invention, carrying out practically mode is as follows: 1) cooling in summer, heating domestic hot water and heavy oil pattern: in such a mode, sea water pump 1, first, second circulation pump 11,15 are opened, controlling the first, the 3rd electric T-shaped valve 3,22 changes to the 3rd, second bypass arm 21,20, switch the second electric T-shaped valve 9, cooling water flow is to the first bypass arm 10.
Sea return: low-temperature heat source (seawater) successively enters the 3rd, second bypass arm 21,20 by the first electric T-shaped valve 3 after water treatment equipment 2, flows into condenser 17, subsequently from the absorption heat of high-temperature high-pressure refrigerant.
Refrigerant loop: refrigerant enters condenser 17 after compressor 24 compresses, and enters evaporator carry out interchange of heat after condensation by throttle mechanism 16, is sucked by compressor 24 afterwards and carries out next one circulation
Heat recovery circuit: diesel engine 12 produces the jacket water that heat is passed to diesel engine 12 inner passage, jacket cooling, through the second electric T-shaped valve 9, enters the first bypass arm 10, carries out next one circulation afterwards by the first circulation pump 11.Exhaust waste heat when diesel engine 12 works enters Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 by pipeline and heats, and the steam of generation is mainly used in the medium of heating of heavy oil, cargo tank and domestic water etc. on boats and ships.
2) heating mode is navigated by water winter: now, sea water pump 1, first circulation pump 11 and the second circulation pump 15 are opened, control the first, the 3rd electric T-shaped valve 3,22 and switch to first, second heat exchanger 4,19, control the second electric T-shaped valve 9 and make jacket cooling flow through First Heat Exchanger 4.
Sea return: successively enter first, second heat exchanger 4,19 carries out heat exchange to low-temperature heat source (seawater) by the first electric T-shaped valve 3 after water treatment equipment 2, flows through evaporator 17 subsequently, the heat of seawater is passed to refrigerant.
Refrigerant loop: by conversion four-way change-over valve 25, refrigerant enters condenser 13 after compressor 24 compresses, and enters evaporator 17 carry out interchange of heat after condensation by throttle mechanism 16, is sucked by compressor 24 afterwards and carries out next one circulation.
Heat recovery circuit: diesel engine 12 produces the jacket water that heat is passed to diesel engine 12 inner passage, jacket cooling, through the second electric T-shaped valve 9, enters First Heat Exchanger 4, carries out next one circulation afterwards by the first circulation pump 11.Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 produces saturated steam by the exhaust heat heating of reclaiming diesel engine, and steam enters the second heat exchanger 19 and carries out interchange of heat with seawater afterwards.
3) anchor winter heating mode: in such a mode, first circulation pump 11 is closed, sea water pump 1 and the second circulation pump 15 are opened, control the first electric T-shaped valve 3 and switch to the 3rd bypass arm 21, switch the second electric T-shaped valve 9, cooling water flow switches to the second heat exchanger 19 to the first bypass arm the 10, three electric T-shaped valve 22.
Sea return: low-temperature heat source (seawater) enters the 3rd bypass arm 21 by the first electric T-shaped valve 3 after water treatment equipment 2, enters the second heat exchanger 19 subsequently, finally flows through evaporator 17, the heat of seawater is passed to refrigerant.
By conversion four-way change-over valve 25, refrigerant enters condenser 13 after compressor 24 compresses, and enters evaporator 17 carry out interchange of heat after condensation by throttle mechanism 16, is sucked afterwards carry out next one circulation by compressor 24.
Heat recovery circuit: now, diesel engine 12 quits work, and cannot provide cover cylinder cooling water heat and exhaust heat.Now, Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 produces saturated steam by fuel Heating, and steam enters the second heat exchanger 19 and carries out interchange of heat with seawater afterwards.
Radical function of the present invention be for boats and ships provide more economical, the a/c system of environmental protection, inexhaustible seawater heat is fully utilized, reclaim jacket cooling waste heat and the exhaust heat of main and auxiliary machine discharge during ship's navigation again, by rational system control strategy, available heat when making full use of work.In waste heat recovery process, the used heat that diesel emission goes out accounts for 50% of net quantity of heat, and by the heat of the form of jacket cooling waste heat recyclable 18% ~ 22.5%, and the heat of 22.5% ~ 27% is by recycling the form of exhaust heat.Summer is by the heavy oil on this heat heating domestic water and boats and ships; Winter is then low temperature seawater preheating, and utilize oil burning boiler preheating low-temperature heat source during vessel berth, sea temperature approximately can improve 4.1 DEG C, and the overall operation efficiency of a/c system improves 12.3%.The present invention not only solves conventional seawater source heat pump air-conditioning system for ship can not the technology barrier that runs of round-the-clock, full marine site, drained into waste heat and the used heat of seawater by effective recycling boats and ships simultaneously, the utilization ratio of further raising boats and ships energy, realizes the marine air-conditioning system of low energy consumption, anti-emission carburetor and high energy efficiency.
Accompanying drawing explanation
Fig. 1 is the recovery type heat sea water source heat pump schematic diagram (winter) peculiar to vessel of patent of the present invention.
In figure: 1. sea water pump, 2. water treatment equipment, 3. the first electric T-shaped valve, 4. First Heat Exchanger, 5. electric cabinet, 6. air humidity sensor, 7. air-temperature pickup, 8. sea temperature sensor, 9. the second electric T-shaped valve, 10. the first bypass arm, 11. first circulation pumps, 12. diesel engines, 13. condensers, 14. air conditioning terminals, 15. second circulation pumps, 16. throttle mechanisms, 17. evaporators, 18. hot water temperature sensor, 19. second heat exchangers, 20. second bypass arms, 21. the 3rd bypass arms, 22. the 3rd electric T-shaped valves, 23. Marine Packaged Fuel Oil-Waste Gas Fired Boiler, 24. compressors, 25. four-way change-over valves.
Specific implementation process
Below in conjunction with accompanying drawing 1, technical scheme of the present invention is described further: a kind of efficient seawater source heat pump air-conditioning system for ship, comprises sea return, refrigerant loop, heat recovery circuit and electric cabinet 5.Described sea return is connected and composed successively by sea water pump 1, water treatment equipment 2, first electric T-shaped valve 3, First Heat Exchanger 4, the 3rd electric T-shaped valve 22, second heat exchanger 19 and evaporator 17.Refrigerant loop is made up of the compressor 24 connected successively, four-way change-over valve 25, condenser 13, throttle mechanism 16 and evaporator 17.Heat recovery circuit is made up of First Heat Exchanger 4, first circulation pump 11, diesel engine 12, first electric T-shaped valve 9, Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 and the second heat exchanger 19.Outside described electric cabinet 5 is connected with first, second, third electric T-shaped valve 3,9,22 respectively, be connected with detection air humidity sensor 6, air-temperature pickup 7, sea temperature sensor 8 and hot water temperature sensor 18.
Described water treatment equipment 2 are connected with the import of the first electric T-shaped valve 3, and described first electric T-shaped valve 3 liang outlet is connected with described First Heat Exchanger 4 and the 3rd bypass arm 21 respectively; Described diesel engine 12 is connected with the import of the second electric T-shaped valve 9 and marine fuel oil packaged boiler 23 respectively, described second electric T-shaped valve 9 liang outlet is connected with described First Heat Exchanger 4 and the first bypass arm 10 respectively, and the outlet of described packaged boiler peculiar to vessel 23 is connected with the second heat exchanger 19 respectively; Described First Heat Exchanger 4 is connected with the import of the 3rd electric T-shaped valve 22 with the mixed export of the 3rd bypass arm 21, and the second described heat exchanger 19 and the second bypass arm 20 export with described 3rd electric T-shaped valve 22 liang respectively and be connected.
(1) cooling in summer, heating domestic hot water and heavy oil pattern: in such a mode, sea water pump 1, first, second circulation pump 11,15 are opened, controlling the first, the 3rd electric T-shaped valve 3,22 changes to the 3rd, second bypass arm 21,20, switch the second electric T-shaped valve 9, cooling water flow is to the first bypass arm 10.
Sea return: low-temperature heat source (seawater) enters the 3rd bypass arm 21 by the first electric T-shaped valve 3 after water treatment equipment 2 filtration is removed sand, the second bypass arm 20 is entered after flowing through the 3rd electric T-shaped valve 22, flow through condenser 17 subsequently to absorb heat, by the transfer of heat of high-temperature high-pressure refrigerant to seawater to reduce refrigerant temperature.
Now, a point of four-way change-over valve 25 is connected with b point, and c point is connected with d point.Refrigerant through four-way change-over valve 25, enters condenser 17 and carries out condensation heat absorption after compressor 24 compresses, and enters evaporator 13 carry out interchange of heat and produce cold water after condensation by throttle mechanism 16, is sucked afterwards carry out next one and circulate by compressor 24.
Heat recovery circuit: diesel engine 12 produces the jacket water that heat is passed to diesel engine 12 inner passage, jacket cooling, through the second electric T-shaped valve 9, enters the first bypass arm 10, carries out next one circulation afterwards by the first circulation pump 11.Exhaust waste heat when diesel engine 12 works enters Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 by pipeline and heats, and the saturated steam of generation is mainly used in the medium of heating of heavy oil, cargo tank and domestic water etc. on boats and ships.
(2) heating mode is navigated by water winter: now, sea water pump 1, first circulation pump 11 and the second circulation pump 15 are opened, control the first, the 3rd electric T-shaped valve 3,22 and switch to first, second heat exchanger 4,19, control the second electric T-shaped valve 9 and make jacket cooling flow through First Heat Exchanger 4.
Sea return: low-temperature heat source (seawater) enters first, second heat exchanger 4,19 and jacket cooling and steam by the first electric T-shaped valve 3 and carries out heat exchange after water treatment equipment 2 filtration is removed sand, sea temperature after heat exchange raises, flow through evaporator 17 subsequently, the heat of seawater is passed to refrigerant, and the low temperature seawater after heat release enters sea.
Now, a point of four-way change-over valve 25 is connected with d point, and b point is connected with c point.Refrigerant through four-way change-over valve 25, enters condenser 13 condensation heat release after compressor 24 compresses, and by throttle mechanism 16 after condensation, enters evaporator 17 and carries out interchange of heat and produce cold water, is sucked afterwards carry out next one and circulate by compressor 24.
Heat recovery circuit: diesel engine 12 produces the jacket water that heat is passed to diesel engines passage, jacket cooling is through the second electric T-shaped valve 9, enter First Heat Exchanger 4 and carry out heat exchange with fresh seawater, after heat exchange, cooling water expansion tank carries out next one circulation by the first circulation pump 11.Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 produces saturated steam by the exhaust heat heating of reclaiming diesel engine 12, and steam enters the second heat exchanger 19 and carries out interchange of heat, to improve sea temperature with seawater afterwards.
(3) anchor winter heating mode: during Ship Anchoring, main frame is out-of-work, and the waste heat of generating diesel engine is little when anchoring.In order to ensure the normal work of the boats and ships marine air conditioning that (comprises duration of voyage and non-duration of voyage) in whole period of service, if utilize the used heat of main and auxiliary machine to improve heat source temperature completely, obviously inadvisable.In such a mode, the first circulation pump 11 is closed, and sea water pump 1 and the second circulation pump 15 are opened, control the first electric T-shaped valve 3 and switch to the 3rd bypass arm 21, switch the second electric T-shaped valve 9, cooling water flow switches to the second heat exchanger 19 to the first bypass arm the 10, three electric T-shaped valve 22.
Sea return: low-temperature heat source (seawater) enters the 3rd bypass arm 21 by the first electric T-shaped valve 3 after water treatment equipment 2 filtration is removed sand, enter the second heat exchanger 19 subsequently and carry out heat exchange with steam, after heat exchange, seawater inflow evaporator 17 carries out heat release, the heat of seawater is passed to refrigerant, and the low temperature seawater after heat release enters sea.
Refrigerant loop: now, a point of four-way change-over valve 25 is connected with d point, and b point is connected with c point.Refrigerant through four-way change-over valve 25, enters condenser 13 and carries out condensation heat release after compressor 24 compresses, and enters evaporator 17 carry out interchange of heat and produce cold water after condensation by throttle mechanism 16, is sucked afterwards carry out next one and circulate by compressor 24.
Heat recovery circuit: now, diesel engine 12 quits work, and cannot provide cover cylinder cooling water heat and exhaust heat.Now, Marine Packaged Fuel Oil-Waste Gas Fired Boiler 23 produces saturated steam by fuel Heating, and steam enters the second heat exchanger 19 and carries out interchange of heat, to improve sea temperature with seawater afterwards.
The foregoing is only the preferred embodiment of patent of the present invention, the protection domain of patent of the present invention is not limited thereto.Any equivalent transformation based on art solutions of the present invention all belongs within the protection domain of patent of the present invention.

Claims (10)

1. an efficient seawater source heat pump air-conditioning system for ship, it is characterized in that: comprise sea return, refrigerant loop, heat recovery circuit and electric cabinet (5), described sea return is connected and composed by pipeline successively by sea water pump (1), water treatment equipment (2), the first electric T-shaped valve (3), First Heat Exchanger (4), the 3rd electric T-shaped valve (22), the second heat exchanger (19), evaporator (17); Described refrigerant loop is connected and composed by pipeline by compressor (24), condenser (13), throttle mechanism (16) and evaporator (17) successively; Described heat recovery circuit is connected and composed by pipeline successively by First Heat Exchanger (4), the first circulation pump (11), diesel engine (12), the second electric T-shaped valve (9), Marine Packaged Fuel Oil-Waste Gas Fired Boiler (23) and the second heat exchanger (19); Described electric cabinet (5) respectively with first, second, third electric T-shaped valve (3), (9), (22), detect air humidity sensor (6), air-temperature pickup (7), sea temperature sensor (8) and hot water temperature sensor (18) and be connected.
2. efficient seawater source heat pump air-conditioning system for ship according to claim 1, is characterized in that: another outlet of described the first electric T-shaped valve (3) is also connected with the 3rd bypass arm (21) be connected with First Heat Exchanger (4).
3. efficient seawater source heat pump air-conditioning system for ship according to claim 1, is characterized in that: another outlet of described the second electric T-shaped valve (9) is also connected with the first bypass arm (10) be connected with the first circulation pump (11).
4. efficient seawater source heat pump air-conditioning system for ship according to claim 1, is characterized in that: another outlet of the 3rd described electric T-shaped valve (22) is also connected with the second bypass arm (20) be connected with the second heat exchanger (19).
5. efficient seawater source heat pump air-conditioning system for ship according to claim 1, is characterized in that: described condenser (13) is also connected with the second circulation pump (15) by pipeline.
6. efficient seawater source heat pump air-conditioning system for ship according to claim 1, is characterized in that: described condenser (13) be also provided with the four-way change-over valve (25) be connected with compressor (24) between evaporator (17).
7. a control method for efficient seawater source heat pump air-conditioning system for ship as claimed in claim 1, it is characterized in that: according to Various Seasonal, different times, the switching of different waters determination auxiliary thermal source, specifically comprises the following steps:
(1) air themperature T is detected in real time by air-temperature pickup (7) ring, then the mean temperature T on the same day is gone out according to local real-time time COMPREHENSIVE CALCULATING empty flat, detect sea temperature T in real time by sea temperature sensor (8) sea, detect air humidity R in real time by air humidity sensor (6), detect hot water temperature T in real time by hot water temperature sensor (18) heat; By surveyed air humidity R and the average air temperature T calculated empty flat, determine the season at place at that time;
(2) according to the air humidity setting value of local geographical environment determination winter and summer, when air humidity reaches setting value in summer, and T empty flat>=25 DEG C are then judged to be summer, realize a/c system refrigeration mode; When air humidity is less than setting value in winter, and T empty flat≤ 15 DEG C are then judged to be winter, realize a/c system heating mode; When air humidity is non-setting value, and 15 DEG C of < T empty flat< 25 DEG C is then judged to be transition season;
(3) sea temperature detected according to step (1), hot water temperature and step (2) determined season, the control method of auxiliary thermal source is determined; According to hot water temperature sensor (18) detect heating after sea temperature, determine the start and stop of auxiliary thermal source, and the first, the 3rd electric T-shaped valve (3), (22) opening and closing.
8. the control method of efficient seawater source heat pump air-conditioning system for ship according to claim 7, is characterized in that: described refrigeration mode is that low-temperature receiver freezes with seawater, Ship Waste Heat productive life hot water and heating heavy oil and cargo tank.
9. the control method of efficient seawater source heat pump air-conditioning system for ship according to claim 7, it is characterized in that: described heating mode is navigate by water heating mode and the heating mode two kinds that anchors winter winter, the heating mode that wherein navigates by water winter take seawater as thermal source, uses jacket cooling waste heat and diesel engine exhaust waste heat auxiliary heating seawater simultaneously; The heating mode that anchors winter take seawater as thermal source, and the steam simultaneously using Marine Packaged Fuel Oil-Waste Gas Fired Boiler fuel Heating to produce is auxiliary heating source for heating seawater.
10. the control method of efficient seawater source heat pump air-conditioning system for ship according to claim 9, is characterized in that, described thermal source is in series by seawater, cylinder of diesel engine jacket water and steam.
CN201410532794.6A 2014-10-10 2014-10-10 A kind of seawater source heat pump air-conditioning system for ship and control method thereof Expired - Fee Related CN104354847B (en)

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Cited By (14)

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CN105730669A (en) * 2016-03-08 2016-07-06 江苏科技大学 Ship air conditioning system
CN106275357A (en) * 2016-08-31 2017-01-04 安徽远东船舶有限公司 A kind of marine water source heat pump air-conditioning system
CN106401726A (en) * 2016-11-28 2017-02-15 新奥泛能网络科技股份有限公司 Jacket water cooling system of internal combustion engine
CN106585944A (en) * 2016-12-11 2017-04-26 黄浩 Circulating type refrigerating system in ship
CN108995790A (en) * 2018-06-13 2018-12-14 武汉理工大学 A kind of afterheat recovery type marine air-conditioning system
CN110077570A (en) * 2019-06-03 2019-08-02 上海船舶研究设计院(中国船舶工业集团公司第六0四研究院) The ship heat recovery and utilization circulatory system and ship
CN110217846A (en) * 2019-07-03 2019-09-10 金盛海洋科技有限公司 A kind of UTILIZATION OF VESIDUAL HEAT IN seawater desalination system
CN110562432A (en) * 2019-09-30 2019-12-13 江苏科技大学 polar region passenger liner cockpit environment control system
WO2020169886A1 (en) * 2019-02-21 2020-08-27 Geotalot Oy A shipyard heating system, a method for heating and a portable heat pump
CN111605667A (en) * 2020-06-01 2020-09-01 江苏科技大学 Multi-energy complementary ship cold and hot water system
CN113879508A (en) * 2021-11-03 2022-01-04 海英荷普曼船舶设备(常熟)有限公司 Marine air conditioner of marine container
CN114735183A (en) * 2022-03-21 2022-07-12 招商局重工(深圳)有限公司 Ship fresh water circulation heat recovery system and control method thereof
CN114876622A (en) * 2022-04-26 2022-08-09 安庆船用电器有限责任公司 Cooling system for ship
WO2023009053A1 (en) * 2021-07-30 2023-02-02 Oceanmaster Engineering Pte Ltd Seawater cooling system and cooling method

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105730669B (en) * 2016-03-08 2018-04-06 江苏科技大学 A kind of marine air-conditioning system
CN105730669A (en) * 2016-03-08 2016-07-06 江苏科技大学 Ship air conditioning system
CN106275357A (en) * 2016-08-31 2017-01-04 安徽远东船舶有限公司 A kind of marine water source heat pump air-conditioning system
CN106401726A (en) * 2016-11-28 2017-02-15 新奥泛能网络科技股份有限公司 Jacket water cooling system of internal combustion engine
CN106401726B (en) * 2016-11-28 2019-07-16 新奥泛能网络科技股份有限公司 A kind of cooling system of internal combustion engine cylinder jacket water
CN106585944A (en) * 2016-12-11 2017-04-26 黄浩 Circulating type refrigerating system in ship
CN106585944B (en) * 2016-12-11 2019-01-04 黄浩 The application method of circulating refrigeration system in a kind of ship
CN108995790A (en) * 2018-06-13 2018-12-14 武汉理工大学 A kind of afterheat recovery type marine air-conditioning system
WO2020169886A1 (en) * 2019-02-21 2020-08-27 Geotalot Oy A shipyard heating system, a method for heating and a portable heat pump
CN110077570A (en) * 2019-06-03 2019-08-02 上海船舶研究设计院(中国船舶工业集团公司第六0四研究院) The ship heat recovery and utilization circulatory system and ship
CN110217846A (en) * 2019-07-03 2019-09-10 金盛海洋科技有限公司 A kind of UTILIZATION OF VESIDUAL HEAT IN seawater desalination system
CN110217846B (en) * 2019-07-03 2022-02-22 金盛海洋科技有限公司 Waste heat utilization seawater desalination system
CN110562432A (en) * 2019-09-30 2019-12-13 江苏科技大学 polar region passenger liner cockpit environment control system
CN111605667A (en) * 2020-06-01 2020-09-01 江苏科技大学 Multi-energy complementary ship cold and hot water system
WO2023009053A1 (en) * 2021-07-30 2023-02-02 Oceanmaster Engineering Pte Ltd Seawater cooling system and cooling method
CN113879508A (en) * 2021-11-03 2022-01-04 海英荷普曼船舶设备(常熟)有限公司 Marine air conditioner of marine container
CN114735183A (en) * 2022-03-21 2022-07-12 招商局重工(深圳)有限公司 Ship fresh water circulation heat recovery system and control method thereof
CN114876622A (en) * 2022-04-26 2022-08-09 安庆船用电器有限责任公司 Cooling system for ship
CN114876622B (en) * 2022-04-26 2023-10-03 安庆船用电器有限责任公司 Marine cooling system

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