Heating system of polar region ship emergency cabin

Abstract

The invention provides a polar region ship emergency cabin heating system which comprises a central heating system and an emergency heating system, the central heating system is communicated with a central air conditioning system of a ship, and the emergency heating system is communicated with an emergency air conditioning system; the two sets of heating systems share one air supply pipeline in the emergency cabin, and the emergency air conditioning system is arranged in the emergency cabin. Only according to the theoretical heating power requirement, one heating device is arranged, only the emergency power supply is connected, the emergency power supply does not need to be provided for the whole central air-conditioning system, and the requirement for the emergency power supply is low.

Description

Technical Field

[0001] The invention belongs to the technical field of ship design, and in particular relates to a heating system for an emergency cabin of a polar ship. Background Art

[0002] Polar regulations require that polar ships be equipped with one or more public places that are sufficient to accommodate all personnel on board, and provide emergency power for the heating equipment in the places. To meet the above requirements, the following methods can be adopted: First, connect the emergency power supply to the corresponding air-conditioning system. Generally, the heating of the cabins on polar ships is achieved by the air-conditioning system (HVAC system), which consists of one or more integral pipeline networks; second, separately set up electric heating equipment in the above places, such as hot air blowers, electric heaters, direct-blowing cabinet air conditioners, etc., and then connect these equipment to the emergency power supply.

[0003] When the air conditioning system (HVAC system) of a polar ship stops working due to loss of main power supply and the heating demand of the cabin cannot be guaranteed, the personnel can be concentrated in the above-mentioned public places for emergency, and the cabin can be heated by the heating facilities of the cabin (connected to emergency power) to protect the life and health of the personnel.

[0004] However, the existing emergency power supply methods have the following problems:

[0005] 1. The air conditioning system on board generally serves the whole ship (cargo ship) or multiple areas (passenger ship or special ship), and the power is very large. For the requirement of supplying emergency power to the heating equipment in a certain area, the emergency power supply for the whole air conditioning system is adopted, which places a huge power demand on the emergency power supply of the ship, and this solution is not economical;

[0006] 2. Generally, this type of emergency centralized place has a large area and the power of the heating equipment is relatively large. If a certain degree of comfort is taken into consideration, the heating equipment should be set up in appropriate locations by area. This requires the installation of multiple heating devices and requires a large layout space and a large amount of cables, which is not a very good choice. Summary of the invention

[0007] In order to solve the technical problems existing in the prior art, the present invention provides a heating system for an emergency cabin of a polar ship, comprising a central heating system and an emergency heating system, wherein the central heating system is connected to a central air-conditioning system of the ship, and the emergency heating system is connected to an emergency air-conditioning system; the two heating systems share an air supply duct in the emergency cabin, and the emergency air-conditioning system is arranged in the emergency cabin.

[0008] Furthermore, the air supply duct in the emergency cabin includes two air inlet ends and a plurality of air outlet ends, the two air inlet ends are respectively connected to the central heating system pipeline and the air outlet of the emergency air-conditioning system, and the air outlet end is provided with an air distributor.

[0009] Furthermore, each of the two air inlet ends of the air supply duct is provided with a non-return damper, and the two non-return dampers are in opposite directions, ensuring that hot air from both the central heating system and the emergency air conditioning system is only discharged from the air outlet end.

[0010] Furthermore, the number and position of the air distributors are increased or decreased according to the demand for air volume required for cabin heating.

[0011] Furthermore, a return air duct is provided between the central air-conditioning system and the emergency compartment, the air inlet end of the return air duct is located in the emergency compartment and is provided with a return air ventilation grille, and the air outlet end of the return air duct is connected to the air inlet of the central air conditioner.

[0012] Furthermore, the emergency air-conditioning system is an independent cabinet air-conditioning system connected to an emergency power supply.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention only sets one heating device according to the theoretical heating power requirement, and only connects to the emergency power supply. It does not need to provide emergency power supply to the entire central air-conditioning system, which has a lower demand for emergency power supply power;

[0015] 2. Only one heating device is installed, which has lower requirements on space layout compared with multiple heating devices;

[0016] 3. By utilizing the air supply duct of the central air-conditioning system and adding only two check dampers, the hot air can be delivered to all areas of the cabin relatively evenly, and the cabin comfort is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Serial numbers and names of the attached drawings: 1. Central air conditioner, 2. Cabinet air conditioner, 3. Check air damper I, 4. Check air damper II, 5. Air distributor I, 6. Air distributor II, 7. Return air ventilator. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The heating system for the emergency cabin of a polar ship provided by the present invention consists of two parts: one is a central air-conditioning system (HVAC system), and the main equipment is arranged outside the cabin; the other is an independent cabinet air-conditioning system (using electric heating and with an air duct interface) connected to an emergency power supply, and the equipment is arranged in the cabin; and the air supply duct is shared by the two heating systems in the cabin. Under normal working conditions, the cabin is heated by the central air-conditioning system. After the air is heated in the central air-conditioner (number ①), the fan inside the air-conditioner sends the hot air into each pipe (serving multiple cabins). The non-return damper (number ③) on the emergency cabin pipe is opened, and the hot air enters the pipe in the cabin. The hot air is sent into the cabin through the air distributors (number ⑤, ⑥, the number of air distributors can be increased or decreased according to the demand for air volume required for cabin heating) at the end of the pipe to heat the cabin. After heat exchange in the cabin, the hot air returns to the central air-conditioner through the return air grille (number ⑦) and the return air duct set in the cabin. In this process, the other non-return damper (number ④) is not opened due to the opposite flow direction. When the central air-conditioning system cannot work under emergency conditions, the cabinet air-conditioning system connected to the emergency power supply can start working, turn on the heating mode of the cabinet air-conditioning (number ②), suck the air in the cabin into the cabinet air-conditioning for heating, and send the hot air into the air supply duct through the internal fan. The non-return damper (number ④) on the duct is opened, and the hot air is sent into the cabin through the air distributor (numbers ⑤, ⑥) at the end of the duct to heat the cabin. After heat exchange in the cabin, the hot air is sucked into the cabinet air-conditioning for heating, forming a cycle. In this process, the other non-return damper (number ③) on the duct is not opened due to the opposite flow direction, ensuring that the hot air circulates only in the cabin.

[0021] In summary, the above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereto. All equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification are within the scope covered by the patent of the present invention.

Claims

1. A heating system for an emergency cabin of a polar ship, characterized in that: It includes a central heating system and an emergency heating system. The central heating system is connected to the central air-conditioning system of the ship, and the emergency heating system is connected to the emergency air-conditioning system. The two heating systems share a common air supply duct in the emergency cabin, and the emergency air-conditioning system is arranged in the emergency cabin.

2. The system according to claim 1, characterized in that: The air supply duct in the emergency cabin includes two air inlet ends and a plurality of air outlet ends. The two air inlet ends are respectively connected to the central heating system pipeline and the air outlet of the emergency air conditioning system. The air outlet end is provided with an air distributor.

3. The system according to claim 2, characterized in that: A non-return damper is provided at each of the two air inlet ends of the air supply duct, and the two non-return dampers are in opposite directions, ensuring that hot air from both the central heating system and the emergency air conditioning system will only be discharged from the air outlet end.

4. The system according to claim 2, characterized in that: The number and position of the air distributors are increased or decreased according to the demand for air volume required for cabin heating.

5. The system according to claim 1, characterized in that: A return air duct is also provided between the central air conditioning system and the emergency compartment. The air inlet end of the return air duct is located in the emergency compartment and is provided with a return air ventilation grille. The air outlet end of the return air duct is connected to the air inlet of the central air conditioner.

6. The system according to any one of claims 1 to 5, characterized in that: The emergency air conditioning system is an independent cabinet air conditioning system connected to an emergency power supply.

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