CN117360758A - Seawater source heat pump heating and air conditioning system for offshore ship - Google Patents

Seawater source heat pump heating and air conditioning system for offshore ship Download PDF

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Publication number
CN117360758A
CN117360758A CN202311379657.9A CN202311379657A CN117360758A CN 117360758 A CN117360758 A CN 117360758A CN 202311379657 A CN202311379657 A CN 202311379657A CN 117360758 A CN117360758 A CN 117360758A
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CN
China
Prior art keywords
seawater
air conditioning
module
heat pump
source heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311379657.9A
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Chinese (zh)
Inventor
王智超
贾欣
杨英霞
徐策
任玉杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jianke Huanneng Technology Co ltd
Dalian University
Original Assignee
Jianke Huanneng Technology Co ltd
Dalian University
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Publication date
Application filed by Jianke Huanneng Technology Co ltd, Dalian University filed Critical Jianke Huanneng Technology Co ltd
Priority to CN202311379657.9A priority Critical patent/CN117360758A/en
Publication of CN117360758A publication Critical patent/CN117360758A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/04—Driving of auxiliaries from power plant other than propulsion power plant
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J2003/001—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam
    • B63J2003/002—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam by using electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J2003/001—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam
    • B63J2003/002—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam by using electric power
    • B63J2003/003—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam by using electric power using photovoltaic power generation, e.g. using solar panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J2003/001—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam
    • B63J2003/006—Driving of auxiliaries characterised by type of power supply, or power transmission, e.g. by using electric power or steam by using hydraulic power transmission

Abstract

The invention relates to a marine seawater source heat pump heating air-conditioning system which comprises a heating air-conditioning module, a power generation module and a control module, wherein the power generation module comprises a photovoltaic module (1) and a diesel generator set (2), the control module comprises a controller (3), and a distribution box (11), an electric storage device (12) and an inverter (13) which are connected with the controller (3), the photovoltaic module (1) and the diesel generator set (2) are connected with the controller (3), the electric storage device (12) and the inverter (13) are also connected with the distribution box (11), the distribution box (11) is connected with the heating air-conditioning module, the controller (3) controls the power generated by the photovoltaic module (1) and the power stored by the electric storage device (12) to provide electric energy for the heating air-conditioning module, and when the electric quantity is insufficient, the power generated by the diesel generator set (2) is controlled to provide electric energy for the heating air-conditioning module. The system is provided with a photovoltaic power generation and storage device, and can solve the problem of overhigh cost of driving a seawater source heat pump system by utilizing a diesel engine set to generate power.

Description

Seawater source heat pump heating and air conditioning system for offshore ship
Technical Field
The invention belongs to the technical field of marine equipment, relates to a heat pump heating air-conditioning system, and particularly relates to a marine seawater source heat pump heating air-conditioning system which utilizes solar photovoltaic power generation and is provided with an electric storage device.
Background
The sea water source heat pump technology is a technology for transferring low-level heat energy to high-level heat energy by utilizing low-temperature low-level heat energy resources of sea water on the surface of the earth and adopting a heat pump principle and inputting a small amount of high-level electric energy.
However, in the existing seawater source heat pump technology, the diesel engine unit is directly utilized to generate electricity to drive the seawater source heat pump to perform heating and cooling. This has a problem of excessive cost.
Meanwhile, the seawater temperature at a certain depth is affected little by the offshore air temperature, the general temperature is quite stable, solar energy is inexhaustible clean energy in the daytime, and the electric storage device can store redundant electric quantity generated by the solar energy, so that the night electricity demand can be met, the seawater source heat pump unit is driven by solar power generation to take the seawater as a heat/cold source, the electric storage device stores energy, and the seawater source heat pump unit supplies heat and cold for the offshore ship in winter, so that the offshore ship is energy-saving, environment-friendly and efficient, the electricity consumption of the heat pump can be greatly reduced, and the offshore ship heating and air conditioning system has very important significance in development and popularization.
In view of the above technical defects in the prior art, there is an urgent need to develop a novel heating and air conditioning system of a seawater source heat pump for a marine vessel.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a seawater source heat pump heating and air conditioning system for a marine ship, which is provided with a solar photovoltaic power generation and storage device and can solve the problem of overhigh cost in the prior art that a diesel engine unit is directly used for generating power to drive the seawater source heat pump to heat and cool.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a marine sea water source heat pump heating air conditioning system, its includes heating air conditioning module, power generation module and control module, heating air conditioning module and power generation module pass through control module connects, its characterized in that, power generation module includes photovoltaic module and diesel generating set, control module includes controller, block terminal, power storage device and dc-to-ac converter, photovoltaic module and diesel generating set respectively with the first input interface and the second input interface of controller link to each other, block terminal, power storage device and dc-to-ac converter respectively with the first output interface, the second output interface and the third output interface of controller link to each other and power storage device and dc-to-ac converter also all with the block terminal links to each other, the block terminal with heating air conditioning module links to each other, the controller is used for controlling the electricity that photovoltaic module generated with power storage device holds is heating air conditioning module provides the electric energy, and when the electricity that the power generation of photovoltaic module generated and power storage device holds is insufficient, control the electricity that diesel generating set generated is for heating air conditioning module provides the electric energy.
Preferably, the heating air conditioning module comprises a seawater source heat pump unit, a seawater inlet device, a seawater outlet device, a fresh water tank, a seawater-fresh water heat exchange device, a seawater inlet electric three-way valve and a cabin fan coil end device, wherein the seawater source heat pump unit comprises a condenser, a throttle valve, an evaporator, a compressor and a reversing four-way valve, the fresh water tank is used for storing cooling water for cooling the diesel generator unit, the seawater-fresh water heat exchange device is positioned in the fresh water tank and is used for carrying out preheating treatment on seawater from the seawater inlet device, a first port of the seawater inlet electric three-way valve is connected with the seawater inlet device, a second port of the seawater inlet electric three-way valve is connected with the seawater-fresh water heat exchange device, a third port of the seawater inlet electric three-way valve is connected with the first port of the reversing four-way valve, a second port and a third port of the reversing four-way valve are respectively connected to a seawater heat exchange inlet of the evaporator and a seawater heat exchange outlet of the condenser, a seawater heat exchange outlet of the condenser is connected with the seawater outlet of the condenser, and the evaporator and the cabin fan end device are used for carrying out heat exchange with the cabin.
Preferably, the heating and air conditioning module comprises a heat source side circulating water pump positioned between the seawater inlet electric three-way valve and the reversing four-way valve.
Preferably, a user side circulating water pump is arranged at the tail end device of the cabin fan coil.
Preferably, the control module further comprises a lightning protection device connected with the fourth output interface of the controller, and the lightning protection device is used for ensuring that the photovoltaic module and the power storage device are safe from lightning.
Preferably, the seawater source heat pump heating air conditioning system for the offshore ship further comprises on-board electric equipment connected with the distribution box.
Preferably, the control module further comprises a data monitor connected with a fifth output interface of the controller, and the data monitor is used for displaying the total power generation amount of the photovoltaic module, the power generation amount of the diesel generating set, the storage capacity of the storage device, the power consumption of the seawater source heat pump unit and the power consumption of the on-board electric equipment.
Preferably, the power generation module further comprises a power discarding device connected with the photovoltaic module, and the power discarding device is used for releasing the power generated by the photovoltaic module which is not processed by the controller.
Compared with the prior art, the marine water source heat pump heating and air conditioning system for the marine vessel has one or more of the following beneficial technical effects:
1. according to the invention, the solar photovoltaic power generation and the power storage device are used as main power storage, the diesel generator set is used as auxiliary power generation, the controller is used for carrying out use management and storage on the generated energy, the solar photovoltaic power generation and the power storage device are used for supplying power preferentially, and then the diesel generator set is started for supplying power, so that the use time and the power supply quantity of the diesel generator set are reduced, the power consumption cost is reduced, and the stability of the system for heating, cooling and other equipment for power consumption is ensured.
2. According to the invention, under the heating mode, the inlet seawater of the seawater source heat pump is preheated, so that the temperature of the inlet seawater is increased, and meanwhile, the energy efficiency of the seawater source heat pump unit is improved.
3. The invention can dynamically adjust the electricity consumption and storage through the controller, realize the self-sufficiency of the system electricity, and meet the electricity demand of the seawater source heat pump system.
Drawings
Fig. 1 is a schematic diagram of the heating and air conditioning system of the seawater source heat pump for a marine vessel according to the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings, which are not to be construed as limiting the scope of the invention.
Aiming at the problems of the marine seawater source heat pump heating air-conditioning system in the prior art, the invention provides the marine seawater source heat pump heating air-conditioning system with the solar photovoltaic power generation and power storage device, which can realize that the solar power, the power storage device and the diesel generator set supply electric quantity to the marine seawater source heat pump heating air-conditioning system in sequence so as to solve the problem of overhigh cost existing in the prior art when the diesel generator set is directly used for generating power to drive the seawater source heat pump heating and cooling.
Fig. 1 is a schematic diagram showing the constitution of a seawater source heat pump heating and air conditioning system for a marine vessel according to the present invention. As shown in fig. 1, the seawater source heat pump heating and air conditioning system for the offshore ship of the present invention comprises a heating and air conditioning module, a power generation module and a control module. The heating air-conditioning module and the power generation module are connected through the control module.
The power generation module comprises a photovoltaic module 1 and a diesel generator set 2. When the solar radiation intensity reaches a certain condition, the photovoltaic module 1 converts solar energy into electric energy to supply power. The diesel generator set 2 is a power supply device which takes a diesel engine as a prime motor and drags a synchronous generator to generate power.
Preferably, the power generation module further comprises a power discarding device 31 connected to the photovoltaic module 1. The power discarding device 31 is used for releasing the power generated by the photovoltaic module 1 which is not processed by the controller 3.
The control module includes a controller 3, a distribution box 11, an electric storage device 12, and an inverter 13. The photovoltaic module 1 and the diesel generator set 2 are respectively connected with a first input interface 4 and a second input interface 5 of the controller 3. The distribution box 11, the power storage device 12 and the inverter 13 are respectively connected with the first output interface 6, the second output interface 7 and the third output interface 8 of the controller 3, and the power storage device 12 and the inverter 13 are also connected with the distribution box 11.
Wherein the controller 3 is used for distributing and processing the electric quantity supplied by the power generation module.
The distribution box 11 is connected to the heating and air conditioning module and to other electrical equipment in the vessel, for example, electrical equipment 30 on the vessel. Thus, the distribution box 11 can distribute electric energy to the heating and air conditioning module and other electric equipment in the ship.
The power storage device 12 is configured to store power when the power generated by the photovoltaic module 1 is higher than the power consumption of the apparatus.
The inverter 13 inverts the direct current generated by the photovoltaic module 1 into alternating current for output, so that electric equipment can be conveniently used.
Therefore, under the control of the controller 3, the power generated by the photovoltaic module 1 and the power stored by the power storage device 12 can be used for providing electric energy for the heating and air conditioning module and other electric equipment in the ship. And, when the electricity generated by the photovoltaic module 1 and the electricity stored by the electricity storage device 12 are insufficient, the electricity generated by the diesel generator set 2 can be used to provide electric energy for the heating and air conditioning module and other electric equipment in the ship.
Therefore, the invention can realize that the solar energy, the electric storage device and the diesel generator set supply electric quantity to the marine seawater source heat pump heating and air conditioning system in sequence, so as to solve the problem of overhigh cost existing in the prior art when the diesel generator set is directly used for generating electricity to drive the seawater source heat pump heating and cooling.
In the present invention, preferably, the control module further comprises a lightning protection device 14 connected to the fourth output interface 9 of the controller 3. The lightning protection device 14 is used for ensuring that the photovoltaic module 1 and the power storage device 12 are safe from lightning strike.
More preferably, the control module further comprises a data monitor 15 connected to the fifth output interface 10 of the controller 3. The data monitor 15 is configured to display a total power generation amount of the photovoltaic module 1, a power generation amount of the diesel generator set 2, a power storage amount of the power storage device 12, a power consumption amount of the seawater source heat pump set 16, a power consumption amount of the on-board electric device 30, and the like. Thus, the power generation amount, the power consumption amount and the like can be monitored conveniently, and management is facilitated.
In the invention, the heating and air conditioning module comprises a seawater source heat pump unit 16, a seawater inlet device 17, a seawater outlet device 18, a fresh water tank 19, a seawater-fresh water heat exchange device 20, a seawater inlet electric three-way valve 21 and a cabin fan coil end device 27.
The seawater source heat pump unit 16 is similar to a unit widely applied in general engineering, and mainly comprises an evaporator 25, a condenser 23, a compressor 29 and an expansion valve 24, wherein the evaporator, the condenser, the compressor 29 and the expansion valve 24 are arranged in a ship cabin, the power generation module supplies power, and the control module distributes power and stores power to realize heating in winter and cooling in summer.
The fresh water tank 19 is used for storing cooling water for cooling the diesel generator set 2, and the cooling water in the fresh water tank 19 is heated through cooling the diesel generator set 2.
The seawater-freshwater heat exchange device 20 is positioned in the freshwater tank 19 and is used for carrying out preheating treatment on the seawater from the seawater inlet device 17. That is, the seawater from the seawater inlet device 17 enters the seawater-freshwater heat exchange device 20, and exchanges heat with the hot water cooled by the diesel generator set 2 in the freshwater tank 19, so that the seawater from the seawater inlet device 17 is preheated.
Unlike the unit widely used in general engineering, in the present invention, the seawater source heat pump unit 16 further includes a reversing four-way valve 28. And, heat exchange structures, such as heat exchange fins, heat exchange pipe networks, etc., are arranged around the evaporator 25 and the condenser 23, so that the seawater from the reversing four-way valve 28 can exchange heat with the refrigerant in the evaporator 25 and the condenser 23 through the heat exchange structures.
The first port of the electric three-way valve 21 for seawater inlet is connected with the seawater inlet device 17, the second port is connected with the seawater-freshwater heat exchange device 20, and the third port is connected with the first port of the reversing four-way valve 28. Thus, the seawater supplied to the reversing four-way valve 28 through the seawater inlet electric three-way valve 21 may be either the seawater from the seawater inlet device 17, that is, cold seawater, or the preheated seawater from the seawater-fresh water heat exchange device 20, that is, hot seawater, as needed.
The second port and the third port of the reversing four-way valve 28 are respectively connected to a seawater heat exchange inlet and a seawater heat exchange outlet of the evaporator 25, that is, a seawater inlet and a seawater outlet of a heat exchange structure disposed around the evaporator 25. Meanwhile, the fourth port of the reversing four-way valve 28 is connected to the seawater heat exchanging inlet of the condenser 23, that is, the seawater inlet of the heat exchanging structure disposed around the condenser 23. The seawater heat exchange outlet of the condenser 23, that is, the seawater outlet of the heat exchange structure disposed around the condenser 23 is connected to the seawater outlet device 18. Thereby, as needed, the hot seawater from the seawater inlet electric three-way valve 21 can be supplied around the evaporator 25 to exchange heat with the refrigerant in the evaporator 25, and the cold seawater from the seawater inlet electric three-way valve 21 can be supplied around the condenser 23 to exchange heat with the refrigerant in the condenser 23.
In order to facilitate the supply of the hot seawater and cold seawater, it is preferable that the heating and air conditioning module includes a heat source side circulating water pump 22 between the seawater inlet electric three-way valve 21 and the reversing four-way valve 28.
The condenser 23 and evaporator 25 are used in heat exchange relationship with the cabin fan coil termination unit 27, as in the prior art. That is, the medium heat-exchanged with the condenser 23 or the evaporator 25 heats and cools the cabin through the cabin fan coil terminal unit 27.
Preferably, a user side circulating water pump 26 is provided at the cabin fan coil end unit 27. Thereby facilitating the flow of medium within the circulation loop of the cabin fan coil termination device 27.
In the present invention, the heating and air conditioning module may be divided into a heating mode and an air conditioning mode according to seasons.
The heating mode is based on the principle that after the seawater entering through the seawater inlet device 17 in winter is heated once by the seawater-fresh water heat exchange device 20, the seawater enters the seawater source heat pump unit 16 through the seawater inlet electric three-way valve 21, and is guided to a heat exchange structure around the evaporator 25 through the reversing four-way valve 28. The evaporator 25 is filled with a refrigerant, and the refrigerant in the evaporator 25 and the hot seawater are called, so that the refrigerant is heated, evaporated and absorbs heat of the hot seawater in the heat exchange structure. The refrigerant carrying heat enters the compressor 29 through a pipeline, the compressor 29 applies work to compress the refrigerant for a second time to raise the temperature, the refrigerant with high temperature and high pressure is sent into the condenser 23 to be condensed and released, and heat exchange is carried out between the condenser 23 and the cabin fan coil tail end device 27, so that the heat of the refrigerant is released into the cabin fan coil tail end device 27. The refrigerant after the heat exchange is returned to the condenser 23 through the pipe at the other end. The condenser 23 is connected with a throttle valve 24, the throttle valve 24 works to release pressure, the refrigerant is reduced to the original temperature, and the refrigerant flows back to the evaporator 25 through the other end pipeline of the throttle valve 24 so as to exchange heat again. The hot seawater after heat exchange with the evaporator 25 is cooled and then flows back to the seawater-fresh water heat exchange device 20 for reheating, and then flows back to the heat exchange structure around the evaporator 25 for heat exchange. The seawater source heat pump unit 16 is thereby caused to transfer heat to the cabin fan coil end unit 27 by continuous circulation.
Therefore, in the heating mode, the inlet seawater temperature is improved by preheating the inlet seawater of the seawater source heat pump unit, and meanwhile, the energy efficiency of the seawater source heat pump unit is improved.
The air conditioning mode is based on the principle that the seawater entering through the seawater inlet device 17 in summer does not flow through the seawater-fresh water heat exchange device 20, but directly flows to the seawater inlet electric three-way valve 21, and the seawater is directly sent into the seawater source heat pump unit 16 through the seawater inlet electric three-way valve 21. The seawater then flows through the reversing four-way valve 28 into the heat exchange structure surrounding the condenser 23. The condenser 23 is filled with refrigerant, and the refrigerant in the condenser 23 exchanges heat with the seawater, so that the refrigerant is condensed to release heat of the refrigerant into the seawater. The refrigerant after releasing heat is depressurized through the throttle valve 24, enters the evaporator 25, exchanges heat with the cabin fan coil tail end device 27 at the evaporator 25, and absorbs air heat in the cabin to cool and depressurize the refrigerant. The low-temperature low-pressure refrigerant is compressed, pressurized and heated by the compressor 29, and then enters the condenser 23 to complete an air-conditioning refrigeration cycle. Meanwhile, after the heat exchange between the seawater and the refrigerant in the condenser 23 is completed, the seawater is directly discharged into the sea through the seawater outlet means 18.
Thus, in the present invention, the switching between the heating mode and the air conditioning mode can be performed by the sea water inlet electric three-way valve 21 and the reversing four-way valve 28.
In the heating mode, the electric three-way valve 21 of the seawater inlet is adjusted to exchange heat with the inlet seawater flowing through the fresh water-seawater heat exchange device 20 in the fresh water tank 19, and the seawater subjected to fresh water heat exchange returns to the fresh water-seawater heat exchange device 20 again after passing through the evaporator 25 (heating) of the seawater source heat pump unit 16, so that the next heat exchange is performed, and a complete cycle is formed.
In the air conditioning mode, the electric three-way valve 21 of the seawater inlet is adjusted to enable seawater to directly enter the periphery of the condenser 23 of the seawater source heat pump unit 16, and then discharged into the sea after exchanging heat with the refrigerant in the condenser 23.
In the invention, the specific implementation process of the power generation module specifically comprises the following steps:
when the intensity of solar radiation on the sea is high in daytime, the electric energy emitted by the photovoltaic module 1 is preferentially used for driving the seawater source heat pump unit 16 to heat in winter and cool in summer. When the operation of the seawater source heat pump unit 16 is satisfied, the remaining electric power is stored in the electric storage device 12. When the power storage device 12 is full, the surplus power generation amount is released by the power discarding device 31. When the solar radiation intensity is low, the generated energy of the photovoltaic module 1 is insufficient to bear the electricity consumption of the whole system, the electricity is supplied through the electricity storage device 12, and the diesel generator set 2 is started to supply electricity after the electricity of the electricity storage device 12 is used.
Meanwhile, the implementation process of the control module specifically comprises the following steps: the controller 3 can realize intelligent control of the distribution box 11, the power storage device 12, the inverter 13, the lightning protection device 14 and the data display device 15. The specific process is as follows:
in the heating and air conditioning mode, when the solar illumination intensity is high in daytime, the controller 3 directly converts the direct-current electric energy generated by the photovoltaic module 1 into alternating-current electric energy through the inverter 13, and supplies power to the seawater source heat pump unit 16, the circulating water pumps 22 and 26 and other electric equipment 30 through the distribution box 11, and the surplus part stores electric quantity through the electric storage device 12. After the storage device 12 is fully stored, the electricity discarding device 31 discards electricity, so as to coordinate the matching of the generated energy and the used energy of the photovoltaic module 1.
In the heating and air conditioning mode, when the solar illumination intensity is low in daytime/at night, the controller 3 directly supplies the electricity storage amount of the electricity storage device 12 to the seawater source heat pump unit 16, the circulating water pumps 22 and 26 and other electric equipment 30 through the distribution box 11. After the electricity is released, the controller 3 regulates and controls the diesel generator set 2 to supply power.
Further, in the non-heating air-conditioning mode, when the solar illumination intensity is high in daytime, the controller 3 directly converts the generated energy of the photovoltaic module 1 into alternating current energy through the inverter 12, and supplies power to other electric equipment 30 through the distribution box 11, and the surplus part stores electric energy through the electric storage device 12. After the storage device 12 is fully stored, the electricity is discarded by the electricity discarding device 31, so that the matching of the generated energy and the used energy of the photovoltaic module 1 is coordinated.
In the non-heating air-conditioning mode, the controller 3 directly supplies the electricity storage amount of the electricity storage device 12 to other electric equipment 30 through the distribution box 11 for use during the time when the solar illumination intensity in daytime is low/during night. After the electricity is released, the controller 3 regulates and controls the diesel generator set 2 to supply power.
And, in the use period, the controller 3 can regulate and control the data monitor 15 to display the current power generation amount of the photovoltaic module 1, the power storage amount of the power storage device 12, the instantaneous power consumption amount value of the seawater source heat pump unit 16, the circulating water pumps 22 and 26 and other electric equipment 30. Moreover, the lightning protection device 14 can be regulated and controlled by the controller 3, so that the safety performance of the system is ensured.
Further, during the non-use period, the controller can intelligently control the power discarding device 31 to release the photovoltaic power generation amount.
The above examples of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.

Claims (8)

1. An offshore marine seawater source heat pump heating air conditioning system comprises a heating air conditioning module, a power generation module and a control module, wherein the heating air conditioning module and the power generation module are connected through the control module, the offshore marine seawater source heat pump heating air conditioning system is characterized in that the power generation module comprises a photovoltaic module (1) and a diesel generator set (2), the control module comprises a controller (3), a distribution box (11), an electric storage device (12) and an inverter (13), the photovoltaic module (1) and the diesel generator set (2) are respectively connected with a first input interface (4) and a second input interface (5) of the controller (3), the distribution box (11), the electric storage device (12) and the inverter (13) are respectively connected with a first output interface (6), a second output interface (7) and a third output interface (8) of the controller (3), the electric storage device (12) and the inverter (13) are also connected with the distribution box (11), the distribution box (11) is connected with the air conditioning module, the controller (3) is used for controlling the photovoltaic module (1) to supply electric energy to the photovoltaic module and the electric storage device (12) when the photovoltaic module (1) and the electric storage device (12) are not supplying electric energy to the heating module, and controlling the power generated by the diesel generating set (2) to provide electric energy for the heating and air conditioning module.
2. The marine source heat pump heating and air conditioning system according to claim 1, characterized in that the heating and air conditioning module comprises a source heat pump unit (16), a sea water inlet device (17), a sea water outlet device (18), a fresh water tank (19), a sea water-fresh water heat exchange device (20), a sea water inlet electric three-way valve (21) and a cabin fan coil end device (27), the source heat pump unit (16) comprises a condenser (23), a throttle valve (24), an evaporator (25), a compressor (29) and a reversing four-way valve (28), the fresh water tank (19) is used for storing cooling water for cooling the diesel generator unit (2), the sea water-fresh water heat exchange device (20) is positioned in the fresh water tank (19) and is used for preheating sea water from the sea water inlet device (17), a first port of the sea water inlet electric three-way valve (21) is connected with the sea water inlet device (17), a second port is connected with the sea water-fresh water heat exchange device (20), a third port is connected with the four-way valve (28), the first port of the reversing four-way valve (28) is connected with the sea water exchange device (23), the third port is connected with the fourth port of the four-way valve (28), the second port is connected with the fourth port of the evaporator (23), the seawater heat exchange outlet of the condenser (23) is connected with the seawater outlet device (18), and the condenser (23) and the evaporator (25) are used for carrying out heat exchange with the cabin fan coil tail end device (27).
3. The marine seawater source heat pump heating and air conditioning system according to claim 2, wherein the heating and air conditioning module comprises a heat source side circulating water pump (22) located between the seawater inlet electric three-way valve (21) and the reversing four-way valve (28).
4. A seawater source heat pump heating and air conditioning system for a marine vessel according to claim 3, characterized in that a user side circulating water pump (26) is provided at the cabin fan coil end unit (27).
5. Marine vessel seawater source heat pump heating and air conditioning system according to any of claims 1-4, wherein the control module further comprises a lightning protection device (14) connected to the fourth output interface (9) of the controller (3), the lightning protection device (14) being adapted to secure the photovoltaic module (1) and the electrical storage device (12) against lightning strokes.
6. The marine vessel heat pump heating and air conditioning system of claim 5, further comprising an on-board consumer (30) connected to the distribution box (11).
7. The marine seawater source heat pump heating and air conditioning system according to claim 6, wherein the control module further comprises a data monitor (15) connected to the fifth output interface (10) of the controller (3), and the data monitor (15) is configured to display the total power generation amount of the photovoltaic module (1), the power generation amount of the diesel generator set (2), the power storage amount of the power storage device (12), the power consumption amount of the seawater source heat pump set (16), and the power consumption amount of the on-board consumer (30).
8. The marine seawater source heat pump heating and air conditioning system according to claim 7, wherein the power generation module further comprises a power discarding device (31) connected to the photovoltaic module (1), and the power discarding device (31) is used for releasing the power generated by the photovoltaic module (1) which is not processed by the controller (3).
CN202311379657.9A 2023-10-24 2023-10-24 Seawater source heat pump heating and air conditioning system for offshore ship Pending CN117360758A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311379657.9A CN117360758A (en) 2023-10-24 2023-10-24 Seawater source heat pump heating and air conditioning system for offshore ship

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311379657.9A CN117360758A (en) 2023-10-24 2023-10-24 Seawater source heat pump heating and air conditioning system for offshore ship

Publications (1)

Publication Number Publication Date
CN117360758A true CN117360758A (en) 2024-01-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311379657.9A Pending CN117360758A (en) 2023-10-24 2023-10-24 Seawater source heat pump heating and air conditioning system for offshore ship

Country Status (1)

Country Link
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