JP3426963B2 - Ship air conditioner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner for a ship, in which fresh air is introduced into a passage and a living room for air conditioning in a ship.

[0002]

2. Description of the Related Art An outline of a conventional ductless air conditioner for a ship is shown in FIG. In the air conditioner shown in the figure, the refrigerant is supplied from the condensing unit 15, which is a heat source, to the fan coil unit 17 through the refrigerant pipe 16, and heat is exchanged between the indoor air and the refrigerant, so that the inside of the room A is cooled. Is heating and cooling.

In addition, the outside air is introduced from the fresh air intake 18, the air conditioner 19 performs the primary cooling and heating, and the passage 2
The outside air is sent from 0 to each room A through the door 21. On the other hand, in the living room A, the exhaust port 22 provided in the lavatory L or the like
The exhaust fan 23 exhausts the same amount of air as the outside air intake amount.

[0004]

By the way, in the above ductless air conditioner for a ship, the condensing unit 1 is used.
5, a mechanism similar to that of the heat pump type air conditioner is adopted. For this reason, ships that cannot receive power supply on the ocean are equipped with a large storage battery or use the power generated by the engine, which adds to the equipment cost and operating cost of the ductless air conditioner. There's a problem.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an air conditioner for a ship that is inexpensive and does not require operating costs.

[0006]

As means for solving the above problems, a marine air conditioner having the following structure is adopted. This marine air conditioner is designed to introduce fresh air into the passage and living room for air conditioning inside the ship, and uses the heat of the engine room to heat the refrigerant that exchanges heat with the fresh air. It is characterized by comprising means. In this marine air conditioner, the refrigerant is heated by utilizing the exhaust heat of the engine room or the like, so that the facility cost and the operating cost can be reduced.

Further, this marine air conditioning apparatus is characterized by comprising a refrigerant cooling means for cooling the refrigerant that exchanges heat with the fresh air by using the external water existing around the ship. . In this marine vessel air conditioner, the refrigerant after heat exchange is cooled by using the external water existing around the marine vessel, so that the facility cost and the operating cost can be reduced.

Further, in the above-mentioned marine air conditioner, as a fresh air intake path, it passes through each deck of the living section where passages and living rooms are provided, and the upper side opens to the upper deck and the passage of each deck. It is desirable to use the vent trunk space that communicates. By effectively utilizing the vent trunk space, fresh air is supplied to each deck, and cleaner air is taken into the ship during loading and unloading.

It is also desirable to provide a heat exchanger for exchanging heat between the air introduced into the passage from the vent trunk space and the refrigerant. By keeping the air in the passage at an appropriate temperature with this heat exchanger, the burden on the air conditioning in the living room is reduced and the economy is improved.

Further, it is desirable that a refrigerant pipe for supplying a refrigerant is passed through the vent trunk space, branched every other space between the decks, and further branched toward the upper and lower living rooms. As a result, the physical quantity of the refrigerant pipe can be reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a ship air conditioner according to the present invention will be described with reference to FIGS. An outline of a marine air conditioner (hereinafter simply referred to as an air conditioner) is shown in FIG. In the figure, reference numeral 1 is a cooling unit (refrigerant cooling means), 2 is a hot water heater (refrigerant heating means), 3 is a circulation pump, 4 is a fan coil unit, 5 is an expansion tank, and 6 is a heat exchanger. .

The cheering unit 1 is provided to generate a chiller water used for cooling.
A water-cooling type is adopted for the cheering unit 1 that takes in outside water existing around the ship such as seawater or lake water and uses it for cooling the refrigerant after heat exchange. The hot water heater 2 is provided to perform heat exchange of water with respect to high temperature hot water supplied from the engine room of the ship to generate hot water having an appropriate temperature. The circulation pump 3 uses the chiller water generated in the cheering unit 1 or the hot water generated in the hot water heater 2 as an indirect cooling / heating medium, and uses the chiller water pipes 7 and 7 ′ for each room A.
It is provided for delivery to.

The fan coil unit 4 is provided to perform heat exchange between the indirect cooling / heating medium fed by the circulation pump 3 and the room air to cool / heat the room. The expansion tank 5 is arranged at the top of the air conditioner in order to absorb the volume change of the chiller water due to the temperature change. The heat exchanger 6 receives the supply of the indirect cooling / heating medium through the chiller water pipe 7 ′ that is branched from the main chiller water pipe 7, and exchanges heat between the indirect cooling / heating medium and the air in the passage like the fan coil unit 4. It is provided to perform the primary cooling and heating of the passage 8.

FIGS. 2 and 3 show the flow of air in the room A and the devices arranged around it. Figure In is existing vent trunk space 9 is used as the vertical fresh air introduction path for supplying fresh air into the passage 8 of each deck, venting the trunk duct 10 in this venting trunk space 9 is full deck It is arranged above and below. The fan coil unit 4 is installed in the living room A. The door 11 of the living room A is provided with a grill 12 for ventilation. Further, the lavatory L provided in a part of the living room A is provided with an exhaust fan 13 and an exhaust duct 14 which form a separate mobile exhaust system.

In the air conditioner, the pipeline constituted by the chiller water pipes 7 and 7'is commonly used for switching between cooling and heating. Further, when the chiller water pipes 7 and 7'are installed, the joint portions are welded and flange connection is not performed in order to prevent liquid leakage. The chiller water pipes 7 and 7'are provided with main pipes every other deck, and upper and lower pipes are branched.

The operation of the thus-configured air conditioner during cooling and heating will be described. First,
Chiller water using outside water such as sea water or lake water is generated in the cooling unit 1 during cooling, and hot water of appropriate temperature is generated in the hot water heater 2 during heating. This chiller water or hot water is sent to the heat exchanger 6 through the chiller water pipes 7 and 7 ', and heat exchange is performed with the air in the passage 8 for primary cooling and heating. Also, the chiller water or hot water is the chiller water pipe 7, 7 '.
Is supplied to the fan coil unit 4 through the air and is exchanged with indoor air as an indirect heat refrigerant to perform heating and cooling.
At the same time, the fan coil unit 4 circulates the room air and further adjusts the temperature individually.

Next, the flow of air caused by the air conditioner will be described. As shown in FIGS. 2 and 3, the fresh air taken into the vent trunk duct 10 is primary cooled and heated by the heat exchanger 6 and then flows out into the passage 8. The air that has been primarily cooled and heated and has flowed out to the passage 8 flows into the living room A through the grill 12 provided on the door 11 of each living room A. The air that has flowed into the living room A is circulated in the room by the fan coil unit 4 and individual temperature adjustment is achieved. Part of the air circulating in the living room A is sucked out of the living room A by the exhaust fan 13 provided in the lavatory L in a predetermined amount for each room, and is discharged to the outside through the exhaust duct 14.

According to this air conditioner, since the hot water heater 2 is provided, the hot water as a heat medium can be heated by utilizing the exhaust heat of the engine room.
The equipment cost and operating cost of the air conditioner can be reduced.

Further, by providing the cheering unit 1, it is not necessary to provide a cooling facility for cooling the warmed water after heat exchange by utilizing the external water existing around the ship such as seawater or lake water. It is possible to reduce equipment cost and operation cost.

By utilizing the existing vent trunk space 9 for the fresh air introduction path, it is possible to effectively utilize the narrow space in the ship to supply the fresh air to each deck. Also, clean air can be taken into the ship even during cargo handling.

The air flowing out from the vent trunk duct 10 to the passage 8 is subjected to primary heating and cooling by the heat exchanger 6 and the temperature of the air in the passage 8 is adjusted to an appropriate temperature, thereby reducing the load on the air conditioning in the living room A. You can Since the heat exchanger 6 is similar to the phi coil unit 4, it only needs to be installed by branching from the chiller water pipe 7, and since the sharing unit 1 is shared, the facility cost can be reduced.

According to this marine air conditioning apparatus,
Since the air taken into the ship always flows from the passage 8 toward the living room A, even if a fire should occur in the living room, smoke does not flow out into the passage 8 and the visibility at the time of evacuation can be secured, so that it is possible to escape. Is very effective for.

[0023]

As described above, according to the marine air conditioner of the present invention, the refrigerant heating means for heating the refrigerant that exchanges heat with the fresh air by utilizing the heat of the engine room. With the provision, since the refrigerant can be heated by utilizing the exhaust heat, the facility cost and the operating cost can be reduced.

By providing the refrigerant cooling means for cooling the refrigerant for exchanging heat with the fresh air by using the external water existing around the ship such as seawater or lake water, Since it is not necessary to provide a cooling facility for cooling the warmed water after the replacement, the facility cost and the operating cost can be reduced.

Further , as a fresh air intake path, it penetrates each deck of the living section in which a passage and a living room are provided,
By utilizing the vent trunk space that opens to the upper deck and communicates with the passages of each deck, it is possible to effectively utilize the narrow space inside the ship to supply fresh air to each deck, and also clean it during cargo handling. It is possible to take in fresh air into the ship. Furthermore, since a fresh air flow is formed such as vent trunk space → passage → living room, it is possible to always take fresh air into the cabin. In addition, even if there is a fire in the living room, smoke will not flow out into the aisle and the visibility during evacuation can be secured, which is very effective when escaping.

The heat exchanger for exchanging heat between the air introduced into the passage from the vent trunk space and the refrigerant keeps the air in the passage at an appropriate temperature, thereby reducing the burden of air conditioning in the living room. It is possible to reduce the operating cost.

The refrigerant pipe for supplying the refrigerant is passed through the vent trunk space, branched every other space between the decks, and further branched toward the upper and lower living rooms to reduce the quantity of the refrigerant pipe. It is possible to reduce the facility cost.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a ship air conditioner according to the present invention.

FIG. 2 is a state explanatory view showing the flow of air and each device arranged in the living room and its surroundings.

FIG. 3 is also a state explanatory view showing the air flow in the living room and the devices arranged in the vicinity thereof.

FIG. 4 is a schematic configuration diagram showing an example of a conventional ductless air conditioner.

[Explanation of symbols]

2 hot water heater 4 fan coil unit 6 heat exchanger 7,7 'Chiller water pipe 8 passages 9 Bent trunk space A room

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-1-132492 (JP, A) JP-A-62-110597 (JP, A) JP-A-62-102086 (JP, A) JP-A-47- 25885 (JP, A) Actual Kaihei 2-100131 (JP, U) Actual Kaihei 6-22199 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B63J 2/04-2 / 06

Claims (3)

(57) [Claims] 1. A marine air conditioner to reduce the onboard air conditioning incorporate fresh air passage and the room, before
A refrigerant that exchanges heat with fresh air is used in the engine room.
Refrigerant heating means for heating using the heat of the
The refrigerant that exchanges heat with the
A cooling means for cooling using water is provided.
The passage and the living room are not provided as the air intake route.
The upper deck opens to the upper deck through each deck
Bent tran to communicate with each deck passage
Marine air conditioner which is characterized to have access to click space. 2. The passage from the vent trunk space
Allow heat exchange between the air introduced into the passage and the refrigerant.
The marine air conditioner according to claim 1, further comprising a heat exchanger . 3. A refrigerant pipe for feeding the refrigerant is the
It is passed through the trunk space and between the decks
To every other room, and further toward the upper and lower living rooms
Branched marine air conditioning apparatus according to claim 1, wherein the Rukoto.