Passenger ship air conditioning system

Abstract

The invention provides a passenger ship air-conditioning system. The passenger ship air-conditioning system comprises a water system which comprises a refrigeration module, a preheating module, a reheating module, a first coil pipe and a second coil pipe; a first water outlet pipe is connected between the water outlet of the refrigeration module and the water inlet of the first coil pipe, and a first water return pipe is connected between the water inlet of the refrigeration module and the water outlet of the first coil pipe; a water outlet of the preheating module is connected to the first water outlet pipe through a pipeline, and a water inlet of the preheating module is connected to the first water return pipe through a pipeline; a second water outlet pipe is connected between the water outlet of the reheating module and the water inlet of the second coil pipe, and a second water return pipe is connected between the water inlet of the reheating module and the water outlet of the second coil pipe; the air system comprises an air duct, and the first coil pipe and the second coil pipe are sequentially arranged in the air duct in the air supply direction. A primary reheating cycle is added to the water system, the temperature of preheated water in winter is reduced, and the water system is used for meeting the requirements of inner cabins and some technical cabins which still need refrigeration even in winter.

Description

Technical Field

[0001] The invention belongs to the technical field of ships, and in particular relates to an air-conditioning system for a passenger ship. Background Art

[0002] At present, the common air conditioning system design of passenger ships mainly includes water system and wind system, among which:

[0003] Water system: Refrigeration and heating share a set of pipelines. In summer, the pipelines are refrigerant water with a design temperature of about 6 degrees, and the cooling source of the refrigerant water is a chiller; in winter, the pipelines are hot water with a design temperature of about 36 degrees, and the heating source is generally steam.

[0004] Air system: The fan of the air conditioner is fixed frequency, and the air volume of the terminal air distribution unit is not controlled. The system is adjusted according to the designed air volume of each area during the commissioning stage. Except that the cabin air distribution unit is generally equipped with electric heating, which can perform a certain program of one-way temperature rise adjustment, the entire system has been running with stable parameters.

[0005] The existing system can only adjust the temperature of the air conditioner by adjusting the water temperature of the water system and using electric heating to increase the temperature. However, high-heat-generating places such as the interior cabin, computer room, and electrical room still have cooling needs in winter. At this time, if cold water is supplied in the water system pipes, electric heating can only be used to provide heating for the space that needs heating, which will obviously increase energy consumption and have poor heating effects.

[0006] Therefore, how to provide an air conditioning system that can provide heating and cooling for different partitions at the same time in winter has become a technical problem that needs to be solved urgently. Summary of the invention

[0007] The object of the present invention is to provide an air conditioning system which can provide heating and cooling for different partitions simultaneously in winter.

[0008] The present invention provides a passenger ship air conditioning system, comprising: a water system and a wind system; wherein:

[0009] The water system includes a refrigeration module, a preheating module, a reheating module, a first coil and a second coil;

[0010] A first water outlet pipe is connected between the water outlet of the refrigeration module and the water inlet of the first coil, and a first water return pipe is connected between the water inlet of the refrigeration module and the water outlet of the first coil; the water outlet of the preheating module is connected to the first water outlet pipe through a pipeline, and the water inlet of the preheating module is connected to the first water return pipe through a pipeline;

[0011] A second water outlet pipe is connected between the water outlet of the reheating module and the water inlet of the second coil, and a second water return pipe is connected between the water inlet of the reheating module and the water outlet of the second coil;

[0012] The air system comprises an air duct, and a first coil and a second coil are arranged in sequence in the air duct along an air supply direction.

[0013] Optionally, the passenger ship air conditioning system includes a cabin air conditioning system and a hall air conditioning system;

[0014] In the cabin air conditioning system, the wind system includes a first rotary wheel, the wind duct includes a cabin air inlet duct and a cabin return air duct, the cabin air inlet passes through the cabin air inlet duct and then passes through the rotary wheel to supply air to the inner cabin and / or the outer cabin, and the cabin exhaust air of the inner cabin and the outer cabin passes through the cabin return air duct and passes through the first rotary wheel to be discharged; the cabin air inlet and the cabin exhaust exchange heat in the first rotary wheel;

[0015] And / or, in the hall air conditioning system, the wind system includes a second rotary wheel, the air duct includes a hall air inlet duct and a hall return air duct, the hall air inlet passes through the hall air inlet duct and passes through the second rotary wheel to supply air to the hall, and the hall exhaust air passes through the hall return air duct and the second rotary wheel to be discharged; the hall air inlet and the hall exhaust exchange heat in the second rotary wheel.

[0016] Optionally, the hall air conditioning system also includes a circulating air duct, one end of the circulating air duct is connected to the hall air inlet duct and is located on the air inlet side of the second rotary wheel, and the other end of the circulating air duct is connected to the hall return air duct and is located on the air outlet side of the second rotary wheel; electric dampers are provided at the air inlet of the hall air inlet duct, the air outlet of the hall return air duct and the circulating air duct.

[0017] Optionally, the hall air inlet comprises a hall main air inlet and at least two hall branch air inlets connected in sequence, and each hall branch air inlet is provided with a variable air volume damper.

[0018] Optionally, the first coil is arranged on the main air inlet duct of the hall, and the second coil is arranged on the branch air inlet duct of the hall.

[0019] Optionally, both the inner cabin and the outer cabin are provided with air distributors with electric heating.

[0020] Optionally, the cabin air inlet includes a cabin main air inlet and an inner cabin air inlet and an outer cabin air inlet connected to the cabin main air inlet;

[0021] A second coil is arranged on the air inlet duct of the outer cabin, and no heating device is arranged on the air inlet duct of the inner cabin.

[0022] Optionally, the air duct includes an air inlet duct and a return air duct, and an air filter and a variable frequency supply fan are sequentially arranged on the air inlet duct along the direction of the wind flow, and an air filter and a variable frequency exhaust fan are sequentially arranged on the return air duct along the direction of the wind flow.

[0023] Optionally, the cabin air inlet and / or the hall air inlet are both provided with a temperature control sensor and a pressure control sensor.

[0024] Optionally, a CO2 concentration sensor is provided on the hall return air duct.

[0025] The beneficial effects brought by the present invention are as follows:

[0026] It can be seen from the above scheme that the present invention provides a passenger ship air-conditioning system, including: a water system and a wind system; wherein the water system includes a refrigeration module, a preheating module (equivalent to the steam heating in the background technology), a reheating module, a first coil and a second coil; compared with the air-conditioning system in the background technology, a reheating cycle is added to the water system to reduce the preheated water temperature in winter to meet the needs of the interior cabin and some technical cabins that still need refrigeration even in winter (such as computer rooms, electrical rooms and other high-heat places), and other areas are adjusted by two levels of preheating and reheating systems to make the adjustment more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram showing a passenger ship air conditioning water system according to an embodiment of the present invention;

[0028] Figure 2 A schematic diagram showing a passenger ship cabin air conditioning system according to an embodiment of the present invention;

[0029] Figure 3 A schematic diagram of a passenger ship lobby air conditioning system according to an embodiment of the present invention;

[0030] Figure 4 A cabin layout diagram of a passenger ship showing an embodiment of the present invention.

[0031] In the figure, 101, condenser; 102, chiller; 2, preheating module; 3, reheating module; 401, first coil; 402, second coil; 5, electric stop air valve; 6, air filter; 701, variable frequency supply fan; 702, variable frequency exhaust fan; 801, first rotary wheel; 802, second rotary wheel; 901, pressure control sensor; 902, temperature control sensor; 903, CO2 concentration sensor; 904, temperature display sensor; 10, electric variable air valve; 11, air distributor; 1201, outer cabin; 1202, inner cabin; 1203, hall. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] This embodiment provides a passenger ship air conditioning system that can provide heating and cooling for different zones simultaneously in winter. Figure 4 The passenger ship of this embodiment includes an outer cabin 1201, an inner cabin 1202 and a hall 1203. The inner cabin 1202 is arranged at the center of the hull, and the outer cabin 1201 is arranged around the inner cabin.

[0034] See also Figure 1 The passenger ship air conditioning system of the present invention comprises: a water system and a wind system; wherein the water system comprises a refrigeration module, a preheating module 2, a reheating module 3, a first coil 401 and a second coil 402.

[0035] Combination Figure 1 , in the water system: the refrigeration module includes a condenser 101 and a chiller 102, and the circulating water in the chiller 102 is cooled in the condenser 101. A first water outlet pipe is connected between the water outlet of the chiller 102 and the water inlet of the first coil 401, and a first water return pipe is connected between the water inlet of the refrigeration module and the water outlet of the first coil 401; the water outlet of the preheating module 2 is connected to the first water outlet pipe through a pipeline, and the water inlet of the preheating module 2 is connected to the first water return pipe through a pipeline; a second water outlet pipe is connected between the water outlet of the reheating module 3 and the water inlet of the second coil 402, and a second water return pipe is connected between the water inlet of the reheating module 3 and the water outlet of the second coil 402;

[0036] The air system includes an air duct, and the first coil 401 and the second coil 402 are sequentially arranged in the air duct along the air supply direction. Further, the air duct includes an air inlet duct and a return air duct, and an air filter and a variable frequency air supply fan 701 are sequentially arranged on the air inlet duct along the air flow direction, and an air filter and a variable frequency exhaust fan 702 are sequentially arranged on the return air duct along the air flow direction. In this embodiment, the filter is an air filter 6.

[0037] Combination Figure 2 and Figure 3The air conditioning system of the passenger ship includes a cabin air conditioning system and a hall air conditioning system; the cabin includes an outer cabin 1201 and an inner cabin 1202. In the cabin air conditioning system, the wind system includes a first rotary wheel 801, and the wind duct includes a cabin air inlet duct and a cabin return air duct. The cabin air inlet passes through the cabin air inlet duct and then passes through the rotary wheel to supply air to the inner cabin 1202 and the outer cabin 1201. The cabin exhaust air of the inner cabin 1202 and the outer cabin 1201 passes through the cabin return air duct and is discharged through the first rotary wheel 801; the cabin air inlet and the cabin exhaust exchange heat in the first rotary wheel 801; further, the cabin air inlet duct includes a cabin main air inlet duct and a connecting air duct. The inner cabin air inlet and the outer cabin air inlet are connected to the cabin main air inlet; the cabin main air inlet is provided with a first coil 401, the outer cabin air inlet is provided with a second coil 402, and the inner cabin air inlet is not provided with any heating device (including coil); the electric shut-off air valve 5 and the air filter 6 are sequentially provided on the cabin main air inlet and on the air inlet side of the first rotary wheel 801; the variable frequency blower 701 is provided on the cabin main air inlet and between the first rotary wheel 801 and the first coil 401. The inner cabin and the outer cabin are both provided with an electric heating air cloth 11. The pressure control sensor 901 and the temperature control sensor 902 are provided on the cabin main air inlet and behind the first coil 401; the temperature control sensor 902 is provided on the outer cabin air inlet and behind the second coil 402. The outer cabin 1201 and the inner cabin 1202 are both provided with air cloth 11. The air filter 6, the first rotary wheel 801, the variable frequency exhaust fan 702 and the electric stop air valve 5 are arranged in sequence on the cabin return air duct.

[0038] In the hall air conditioning system, the wind system includes the second rotary wheel 802, and the air duct includes the hall air inlet duct and the hall return duct, wherein the hall air inlet duct includes the hall main air inlet duct and at least two hall branch air inlets connected in sequence, and the two hall branch air inlets supply air to the left and right sides of the hall respectively. The hall air inlet passes through the hall main air inlet duct, the electric damper, the air filter 6, the second rotary wheel 802, the variable frequency blower 701, the first coil 401, the pressure control sensor 901 and the temperature display sensor 904, and then is divided into the two hall branch air inlets to supply air to the left and right sides of the hall, wherein the electric damper uses the electric stop air valve 5. The second coil 402, the temperature display sensor 904 and the electric variable air valve are arranged on each hall branch air inlet duct in sequence according to the direction of the wind flow. The left side and the right side of the hall are each provided with a mutually independent hall branch return air duct. Each hall branch return air duct is provided with an electric variable air valve 10, a temperature control sensor 902 and a CO2 concentration sensor 903 in sequence according to the direction of the wind flow. The outlet end of each hall branch return air duct is connected to the main hall return air duct. The main hall return air duct is provided with an air filter 6, a second rotary wheel 802, a variable frequency exhaust fan 702 and an electric stop air valve 5 in sequence along the direction of the wind flow. The hall exhaust air is discharged through the hall return air duct through the second rotary wheel 802; the hall intake air and the hall exhaust air exchange heat in the second rotary wheel 802. The hall air conditioning system also includes a circulating air duct, one end of which is connected to the hall intake air duct and is located on the intake side of the second rotary wheel 802, and the other end of which is connected to the hall return air duct and is located on the outlet side of the second rotary wheel 802. An electric stop air valve 5 is provided on the circulating air duct. The electric variable air valve 10 is used to adjust the air volume. The first coil 401 and the second coil 402 are used to adjust the temperature.

[0039] Basic working principle of water system:

[0040] 1) Preheating and cooling share the same pipeline.

[0041] 2) In summer, the preheating system stops heating, the circulating water in the pipeline is cooled by the chiller, and then sent to the air conditioner to cool the air. The cooled air is sent to the service area. The preheating water temperature is designed to be 6 degrees when entering the coil and 12 degrees when leaving the coil. The system controls the return water temperature to 12 degrees, and the chiller is loaded and unloaded according to the return water temperature (different loads, different return water temperatures). The reheating water system is used for temperature fine-tuning.

[0042] 3) In winter, the chiller stops working and the air conditioner will perform two-stage heating of the air by preheating and reheating. The preheating design return water temperature is 12 degrees, and the reheating water supply temperature is 80 degrees.

[0043] Basic working principle of cabin air system:

[0044] 1) In winter, the heat load of the outer cabin is large. The air is sent into the cabin after being processed by the preheating and reheating coils of the air conditioner. The cabin air distributor is electrically heated, with a total of three levels of heating. The water inlet valve of the reheating coil is automatically adjusted according to the temperature sensor;

[0045] 2) In winter, the heat load in the cabin is small and needs to be cooled. The air passes through the preheating coil (temperature is about 13 degrees) and enters the cabin. The end air distributor is electrically heated, a total of two-stage heating. The water inlet valve of the preheating coil is automatically adjusted according to the temperature sensor;

[0046] 3) The cabin is equipped with a thermostat, which has a built-in temperature sensor. The thermostat automatically adjusts the variable air volume damper built into the air blower to adjust the air volume based on the user's settings and the data from the temperature sensor. When the air volume cannot be reduced any further (people have the minimum requirement for fresh air), the electric heating in the air blower is automatically started to adjust the temperature;

[0047] 4) The air duct pressure is designed to be constant pressure. When the variable air volume damper of each cabin is activated, the pressure of the air duct will change. The variable frequency fan in the air conditioner will automatically increase or decrease the fan frequency according to the pressure sensor on the main pipe, so as to achieve the purpose of cabin comfort and energy saving.

[0048] Basic working principle of hall cabin:

[0049] 1) The refrigerant / preheating water inlet valve automatically adjusts the amount of water entering the coil according to the temperature set by the temperature sensor;

[0050] 2) The water inlet valve of the reheat coil automatically adjusts the amount of water entering the coil according to the temperature set by the temperature sensor;

[0051] 3) The water inlet valve of the reheat coil automatically adjusts the amount of water entering the coil according to the temperature set by the temperature sensor:

[0052] 4) The variable air volume damper is automatically adjusted according to the temperature sensor and CO2 concentration sensor in the left hall. The temperature sensor is controlled by temperature, and the CO2 concentration is used to determine the number of people in the area. The number of people is calculated by the concentration to control the opening of the variable air volume damper. The principle is the same in the right hall;

[0053] 5) The air duct is designed for constant pressure. When the variable air volume gate opening changes, the pipe pressure will change accordingly. The pressure change is detected by the pressure sensor and the output is used to control the frequency increase or decrease of the fan;

[0054] 6) When the hall is unoccupied for a long time, for energy saving considerations, the air shut-off dampers at the air inlet and exhaust outlet can be closed, and the electric shut-off damper 5 on the circulating air duct can be opened to put the system into a fully internal circulation state.

[0055] The present invention adds a level of reheating to the water system, lowering the preheated water temperature in winter to meet the needs of the inner cabin and some technical cabins that still need refrigeration even in winter (such as computer rooms, electrical rooms and other high-heating places). Other areas are regulated by two levels of preheating and reheating systems, making the regulation more precise. In the wind system, rotary wheels, variable air volume dampers, variable air volume air distributors, CO2 concentration sensors and other means are added to enable the air-conditioned areas to be independently adjusted according to individual differences, and fully automatic control is achieved, thereby achieving the purpose of both comfort and energy saving. In view of the fact that there is no one in the public areas of passenger ships during the off-season, peak season, and in operation or non-operation states, the system can also switch to a full internal circulation mode, greatly saving energy. The air conditioner adds a rotary wheel. The rotary wheel can enable the return air and the fresh air to undergo full heat exchange, and they will not mix with each other, preventing the return air from polluting the fresh air, greatly improving the energy-saving efficiency.

[0056] The main advantages of the design of the present invention are:

[0057] 1. The water system adds reheating cycle, improves regulation accuracy and enhances passenger comfort;

[0058] 2. The air conditioner adds a rotary wheel to exchange energy between the return air and the fresh air, greatly improving the energy-saving efficiency;

[0059] 3. The air conditioner has built-in electric dampers for return air and fresh air, which can switch to internal circulation mode when no one is in the public area, which is suitable for energy saving on passenger ships;

[0060] 4. By adding variable air volume dampers, variable air volume, and air distribution unit CO2 concentration sensors, different areas on the ship can be individually adjusted according to different settings or actual conditions, greatly improving the comfort of passengers.

[0061] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A passenger ship air conditioning system, It is characterized in that include: Water system and wind system; among them, The water system includes a refrigeration module, a preheating module, a reheating module, a first coil and a second coil; A first water outlet pipe is connected between the water outlet of the refrigeration module and the water inlet of the first coil, and a first water return pipe is connected between the water inlet of the refrigeration module and the water outlet of the first coil; the water outlet of the preheating module is connected to the first water outlet pipe through a pipeline, and the water inlet of the preheating module is connected to the first water return pipe through a pipeline; A second water outlet pipe is connected between the water outlet of the reheating module and the water inlet of the second coil, and a second water return pipe is connected between the water inlet of the reheating module and the water outlet of the second coil; The air system includes an air duct, and the first coil and the second coil are arranged in sequence along the air supply direction in the air duct.

2. The passenger ship air conditioning system according to claim 1, Features: The passenger ship air conditioning system includes a cabin air conditioning system and a hall air conditioning system; In the cabin air conditioning system, the wind system includes a first rotary wheel, the air duct includes a cabin air inlet duct and a cabin return air duct, the cabin air inlet passes through the cabin air inlet duct and then passes through the rotary wheel to supply air to the inner cabin and / or the outer cabin, and the cabin exhaust air of the inner cabin and the outer cabin passes through the cabin return air duct and is discharged through the first rotary wheel; The cabin intake air and the cabin exhaust air exchange heat in the first rotary wheel; And / or, in the hall air conditioning system, the wind system includes a second rotary wheel, the air duct includes a hall air inlet duct and a hall return air duct, the hall air inlet passes through the hall air inlet duct and then supplies air to the hall after passing through the second rotary wheel, and the hall exhaust air passes through the hall return air duct and is discharged through the second rotary wheel; the hall air inlet and the hall exhaust exchange heat in the second rotary wheel.

3. The passenger ship air conditioning system according to claim 2, Features: The hall air conditioning system also includes a circulating air duct, one end of which is connected to the hall air inlet duct and located on the air inlet side of the second rotary wheel, and the other end of which is connected to the hall return air duct and located on the air outlet side of the second rotary wheel; electric dampers are provided at the air inlet of the hall air inlet duct, the air outlet of the hall return air duct and the circulating air duct.

4. The passenger ship air conditioning system according to claim 2 or 3, Features: The hall air inlet comprises a hall main air inlet and at least two hall branch air inlets connected in sequence, and each of the hall branch air inlets is provided with a variable air volume damper.

5. The passenger ship air conditioning system according to claim 4, Features: The first coil is arranged on the main air inlet duct of the hall, and the second coil is arranged on the branch air inlet duct of the hall.

6. The passenger ship air conditioning system according to claim 2 or 3, Features: The inner cabin and the outer cabin are both provided with air distributors with electric heating.

7. The passenger ship air conditioning system according to claim 2 or 3, Features: The cabin air inlet duct comprises a cabin main air inlet duct and an inner cabin air inlet duct and an outer cabin air inlet duct connected to the cabin main air inlet duct; The second coil is arranged on the outer cabin air inlet duct, and no heating device is arranged on the inner cabin air inlet duct.

8. The passenger ship air conditioning system according to any one of claims 1 to 3, Features: The air duct comprises an air inlet duct and a return air duct. An air filter and a variable frequency blower are sequentially arranged on the air inlet duct along the direction of the wind flow. An air filter and a variable frequency exhaust fan are sequentially arranged on the return air duct along the direction of the wind flow.

9. The passenger ship air conditioning system according to claim 2 or 3, Features: The cabin air inlet duct and / or the hall air inlet duct are both provided with a temperature control sensor and a pressure control sensor.

10. The passenger ship air conditioning system according to claim 9, Features: The hall return air duct is provided with a CO 2 Concentration sensor.

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