JPS61191817A - Air conditioner for marine use - Google Patents

Abstract

PURPOSE:To reduce the device cost and maintenance charge by loading as one unit an air-conditioning casing in which are assembled an internal-combustion engine constituting an air conditioner for driving the same, a freezer for space cooling, an evaporator, a hot water type heater core for space heating, a blasting blower, etc. CONSTITUTION:A constituent unit on a frame base 40 is formed by assembling a hot water generating casing 11, respective constituent elements 2-9 of a freezer as a cool heat supply source, a space heating heater core 10, a hot water supply pipeline D as means for supplying cooling hot water for a main engine C to the heater core 10, cooling water supply systems 30-32, an internal- combustion engine 1 for driving the device, etc. On a blow-off port 13 of the air-conditioning casing 11 for generating cool and hot air flow is mounted an air flow distributing duct. Branched ducts are suitably connected to said duct. The tip ends of respective ducts are connected to cool air or hot air blow-off grills provided in respective cabins so as to uniformly cool or heat these cabins.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioner mounted on a ship for heating and cooling the interior of a ship.

[Prior Art] In a conventional marine air-conditioning system, a cooling device and a heating device are installed separately and independently, and the former is driven by the ship's main engine as a power source, and the latter is driven by the main engine. The system was designed to supply cooled hot water as a heat source for heating.

It also houses a refrigerant evaporator as a heat exchanger for generating cold air, a hot water type heater core as a heat exchanger for generating hot air, and a blower for blowing air. The indoor units for the 9-boiler adjustment device that you would like to have are one for cooling and one for heating in each cabin, and an outdoor unit for supplying liquefied refrigerant or hot water for cooling the main engine. The source and the above-mentioned indoor unit are connected by piping for circulating refrigerant or hot water.
It was tied together. “ Figure 5 shows the configuration of a conventional marine air-conditioning system as a perspective view of the hull. In the figure, A is the hull of a pleasure boat, C is the ship's main engine, and F and G are the cabins, respectively.2
Reference numeral 50 indicates a refrigerant compressor of the refrigeration system, 50 indicates an outdoor cooling unit in which a refrigerant condenser, liquid receiver, etc. are installed, and 51 indicates an indoor cooling unit 52, which is installed in plural units in each cabin F and G. 60 is a radiator for the main engine C, and 61 is housed in an indoor unit 62 for generating hot water and wind installed in each cabin. This hot water piping is used to circulate and supply engine cooling hot water to the heater core. Both the cooling and hot air generation units 52 and 62 have built-in fans for sucking in conditioned air and blowing it out into the room, respectively.

FIG. 6 is a system diagram of the apparatus shown in FIG. 5,
3 is a water-cooled refrigerant condenser, 4 is a liquid receiver, 8 is a Mi@ valve,
53 is an evaporator. 63 is a hot water type heater core, 54 and 64 are fans for generating cold air and hot air, respectively, which are incorporated in the indoor unit casing indicated by the dashed line in the figure, 38 is a cooling water pipe, and 32 is a pump for supplying cooling water. It is.

[Problem 1 to be solved by the invention The conventional marine air-conditioning system with the above-mentioned configuration has the following problems:
- It is necessary to design cumbersome piping for the distribution of refrigerant and hot water for each ship, as it is common for ships to have different mounting locations for current collectors, heating and cooling systems, and different cabin layouts. Ta.

In addition, the indoor units for cooling and heating were provided separately for each empty can, which caused a significant increase in the price of the entire device and was burdensome in terms of maintenance.

Furthermore, since the cooling refrigeration system is driven by the main engine, noise and filming while the vessel is berthed not only impairs the living environment, but also results in wasted fuel.

The present invention can be produced as inexpensively as possible, and the installation cost can be kept low.
It is an object of the present invention to provide a heating and cooling device for a ship that requires less installation space and can reduce operating noise of the device.

[Means for Solving the Problems] In order to achieve the above-mentioned object, a ship, a marine air-conditioning system according to the present invention includes: an internal combustion engine for driving the air-conditioning system; a cooling refrigeration system driven by the internal combustion engine; an air conditioning casing that includes an evaporator, a hot water type heater core, a pro 9, etc. that receives refrigerant from the refrigeration system, and has an intake port and an outlet for air conditioning air; A supplying means and a circulation pump driven by the internal combustion engine and circulating cooling water to the internal combustion engine and the refrigeration device are combined into one unit, and the air conditioning casing has an air outlet. A configuration was adopted in which a wind distribution duct was connected, and the end of the duct was equipped with a blow-off grill to blow air into the cabin.

[Function] The marine air-conditioning system configured as described above is an air conditioning system that incorporates an internal combustion engine for driving the air-conditioning system, a refrigeration system for cooling, an evaporator, a hot water type heater core for heating, a blower for blowing air, etc. casing, etc. can be combined into a single unit and centrally installed in one location on the ship.

To cool and heat each cabin, a wind distribution duct is connected to the outlet of the air conditioning casing, and the end of this duct is attached to the air conditioning air outlet grill provided in each cabin. Cold or warm air is supplied to each cabin.

[Example] The ship air conditioning system of the present invention will be specifically described based on the following example diagrams.

FIG. 1 is a perspective view of a medium-sized pleasure boat equipped with the device of the present invention, where A is the hull, B is the device of the present invention, C is the ship's main engine for traveling, and D is the main engine C that uses hot water for heating. Hot water piping for supplying equipment fB as a heat source, E
This is an air distribution duct for sending the cold air or hot air generated by the WIB to each cabin F and G, and this duct E is connected to the cooling duct E1 in the ceiling via a switching damper (not shown). It branches into a heating duct E2 at the foot. Both ducts El and E2 are provided with a plurality of cooling air outlet grilles H1 and heating air outlet grilles H2, respectively, facing into the cabin. 1 is an internal combustion engine for driving heating and cooling equipment.
1WA, 2 is a refrigerant compressor, 3 is a water-cooled refrigerant condenser, 11 is an air conditioning casing, 11a is casing 1
1 is the built-in part of the blower, 35 is the radiator of the internal combustion engine 1, and 40 is the equipment 1.2.3.1 for these air-conditioning devices.
1.11a This is a frame for mounting 35 to the unit. The ship's main engine C is installed in a hold formed under the floor of the cabins F and G, and the device B of the present invention is installed at the rear of the main engine C in the hold.

FIG. 2 is a system diagram of the device illustrating the configuration and operation of the main parts of the device of the present invention, in which 1 is the internal combustion for driving the air-conditioning device emW4.2 is the refrigerant compressor driven by this internal combustion *gQ; 3 is a water-cooled refrigerant condenser, 4 is a liquid receiver, 5 is a water-cooled refrigerant supercooler, 6 is a dryer for removing water mixed in the refrigerant, 7 is a sight glass for observing bubbles in the refrigerant, and 8 is a refrigerant An expansion valve for occupancy reduction, 9 an evaporator for cooling, 10 a hot water heater core for heating, 11 an air conditioning casing for generating cold and hot air, and 11a a part of the casing 11 in which the blower 14 is housed. , 12 and 13 are the air conditioning air intake and outlet provided in the casing 11, respectively;
The air distribution duct E is connected to the air outlet 13, and the intake port 12 is connected to the cabin F so as to take in air from the cabins F and G.
, is connected to G. 15 is an electric motor for driving the blower 14 with electric power as required; 16 is a rotational force transmission shaft for driving the blower 14 by internal combustion; 17 is for intermittent transmission of the rotational force of the internal combustion engine 1 to the blower 14; Clutches 18 to 20 are belts for transmitting the rotational force of the internal combustion engine 1.

C is a main engine for running the ship, D is a hot water pipe for circulating and supplying hot water generated by engine C to the heater core 10, 22 is a hot water pump, 23 is a hot water strainer, 21, 24 and 25 are respectively It's a water valve.

30 is a seawater strainer interposed in a suction pipe 31 for sea (fresh) water for cooling the device; 32 is a cooling water pump; 33 and 3;
4 is internal combustion engine I! 11 and its radiator 35, and 36 is a used cooling water discharge pipe.

3 and 4 are a top view and a side view of the mounting MB shown in FIG. 2, and the reference numerals in the figures are the same as those already described.

Next, the functions of the apparatus of the present invention having the above-mentioned structure will be explained mainly with reference to FIGS. 1 and 2, and with comparative reference to FIG. 5, which shows the conventional apparatus.

As shown in FIG.
On top are its constituent units, that is, a casing 11 for generating cold/warm air, (each constituent element of) the refrigeration system 2 to 9 as a cold heat supply source, a heater core 10 for heating, and a main power supply to this heater core 10. Hot water piping as a means of supplying cooling hot water for engine C and cooling water supply system 3 of the device
0 to 32, the internal combustion engine 1 for driving the device, etc. are assembled in an extremely compact manner. Then, a ventilation duct E is attached to the outlet 13 of the air conditioning cage jig 11 for generating cold/warm air, and branch ducts are connected to this duct E as appropriate, so that the tip of each branch duct is connected to the inside of each cabin. Each cabin can be heated and cooled uniformly by connecting to a cold air or hot air blowing grill H provided in the cabin. Therefore, the fifth
Unlike the conventional device as shown in the figure, each outlet in the cabin is equipped with an indoor cooling unit 52 that includes an evaporator and a fan, and an indoor unit for generating hot air that includes a heater core and fan. This eliminates the uneconomical manufacturing cost of having to install the indoor units 62, and also eliminates the troublesome maintenance of a large number of indoor units. And since indoor units with built-in evaporators or tacos are no longer required, refrigerant or hot water circulation supply piping connecting these indoor units to the refrigeration system or main engine radiator is also no longer necessary. This results in extremely large savings in installation costs. This is because, in general, installation of air conditioning air distribution ducts is much easier and cheaper than installing refrigerant or hot water supply piping inside a narrow and complicated ship.

Furthermore, compared to the conventional method of distributing each component of the heating and cooling system to various locations on the ship, the system of the present invention, which is assembled into a single frame, saves space for installing the system. can.

Furthermore, since an internal combustion engine is attached as the power source for driving the device, unlike conventional devices, there is no need to keep the main engine running for cooling while the ship is berthed, and the noise and noise emitted by the main engine is reduced. This eliminates the inconvenience of being bothered by vibrations and wasting fuel. When there is no need to operate the refrigeration system and therefore no need to operate the internal combustion engine for driving the system, the blower 14 built into the air conditioning casing 11 is used to control the rotation of the internal combustion engine 1. After turning off an electromagnetic or manually operated clutch 17 interposed on the shaft 16 for transmitting power to the blower 14, it can be driven by the electric motor 15.

Another feature of the invention is also present in the cooling system of the air conditioning unit @B. That is, in the operating system diagram shown in FIG. 2, a compressor 2. driven by an internal combustion engine 1. While passing through the water-cooled condenser 3 , the high-temperature, high-pressure gas phase refrigerant compressed by A is liquefied by exchanging heat with the sea (fresh) water supplied by the cooling water pump 32 , and once transferred to the liquid receiver 4 . After flowing in, it passes through a supercooler 5 where seawater also exchanges heat and is further cooled, and then a dryer 6 removes mixed moisture, and then the air conditioning casing 11 is depressurized by an expansion valve 8. flows into the evaporator 9 installed in
The blower 14 absorbs the latent heat of vaporization from the warm air sucked in from the air intake port 12 of the casing 11 to perform cooling work, and the air returns to the gas phase and is returned to the compressor 2 to recirculate the frozen cycle. Inhaled. The radiator 35 of the internal combustion engine 1 is also configured to be supplied with cooling seawater from the cooling water pump 32.
2 will eventually have three seawater supplies for cooling the heat exchangers: the condenser 3, the supercooler 5, and the radiator 35, but the seawater supply piping to these is not in parallel. They are arranged in series, and as shown in FIG. 2, the seawater from which foreign substances have been removed by the seawater strainer 30 passes through the suction pipe 31 and is sucked into the cooling water pump 32. After being cooled in the supercooler 5, which requires a large cooling effect, the air passes through the condenser 3, where it is heated considerably, and finally sent to the radiator of the internal combustion engine 1.

Since the output of the internal combustion engine 1 is relatively small, excessive cooling by low-temperature seawater will reduce the combustion efficiency of the engine and have the opposite effect. By supplying cooling water to the radiator, such problems can be eliminated.

A mount 40 for mounting the internal combustion engine, air conditioning casing, etc. that make up the air conditioning system into one unit.
It may be a completely integrated structure, or it may be a combination structure that can be divided into several parts to facilitate transportation and installation of the device.

Further, the layout method of each component on the mount surface may be determined as appropriate depending on the size of the air conditioning capacity of the device and the installation location in the ship.

[Effects of the Invention] The marine air conditioning system of the present invention having the above configuration has the following effects.

b) It is necessary to install a cooling unit with a built-in evaporator and a fan, and a heating indoor unit with a built-in heater core and fan for each of the many air conditioning air outlets installed in the cabin. This eliminates equipment costs and maintenance costs.

(a) Due to the reasons stated in item (a) above, refrigerant piping connecting the cooling evaporator and the outdoor unit as a refrigerant supply source, as well as hot water piping connecting the heating heater core and the main engine radiator, are no longer required, and each ship This frees you from the hassle of piping designs that differ from case to case, and reduces installation costs.

c) The installation space for the Vt position is reduced, and maintenance of the device becomes easier.

2) Since the main engine can be stopped to cool the ship when it is berthed, noise and vibrations can be avoided, and fuel consumption can also be reduced.

4. Brief explanation of the drawings Fig. 1 is a perspective view of a pleasure boat equipped with the device of the present invention, Fig. 2 is a system diagram explaining the configuration of the main parts of the device shown in Fig. 1 and its operation, and Fig. Figures 3 and 4 are top and side views of the equipment shown in Figure 2, Figure 5 is a perspective view of the hull on which a conventional heating and cooling system is installed, and Figure 6 is the same as shown in Figure 5. FIG. 2 is a system diagram of the device.

In the diagram A...hull B...device of the present invention C...ship main engine D...main engine radiator hot water piping E...air distribution duct F, G...ship cabin H... Blowout grill 1...Internal combustion engine l112...
Refrigerant compressor 3... Condenser 5... Supercooler 9...
・Evaporator 10... Hot water heater core 11... Air conditioning casing 12... Air intake port 13...
・Air outlet 22...Pump for hot water 32...Pump for cooling water 31...Sea (fresh) water suction pipe procedure city correct writing method> 1. Indication of incident Patent application No. 33424 of 1985 No. 2
, Title of the invention: Marine cooling system 3, Relationship with the case of the person making the amendment Patent applicant address: 1-1 Showa-cho, Kariya-shi, Aichi Prefecture Name (4)
26) Nippondenso Co., Ltd. Representative 1 Kengo Toda 4, Agent 465 Phone: 052-704-15516,
Target of correction Drawing

Claims (1)

[Scope of Claims] 1) Built-in internal combustion engine for driving a heating and cooling system, a cooling refrigeration system driven by the internal combustion engine, an evaporator, a hot water heater core, a blower, etc. that receives refrigerant from the refrigeration system. an air-conditioning casing comprising an air-conditioning air intake and an air outlet; means for supplying hot water for cooling a ship's main engine to the heater core; A circulation pump that circulates water is combined into one unit, and an air distribution duct is connected to the air outlet of the air conditioning casing, and at the end of the duct there is an air outlet grill that blows air into the cabin. A ship air conditioning system characterized by comprising: 2) The air conditioning system for a ship according to claim 1, wherein each component of the unit is assembled on a single integrated or combined frame. 3) The cooling water is configured to flow into a cooling radiator of the internal combustion engine after cooling the refrigerant of the refrigeration system. The air conditioning system for ships according to item 2.