JP3960611B2 - Air-conditioning equipment in shipboard electrical equipment room - Google Patents

Description

  The present invention relates to an air conditioning facility and an air conditioning method for an electrical equipment room in a ship that houses electrical equipment that requires an appropriate temperature / humidity environment and a clean air environment.

  In recent years, electrical equipment including electronic equipment installed in ships has become increasingly complex and sophisticated as represented by the adoption of computer control equipment. For this reason, if these electric devices are troubled, it will seriously affect the operation of the ship, and it is essential to maintain an environment in which the electric devices perform their functions sufficiently.

  Regarding the ventilation structure that ventilates the interior of this type of independent emergency power generation room for ships, the applicant of the present application has already exhausted the generator room by devising the shape and position of this type of exhaust port and air supply port. It has been proposed a structure that prevents contamination with gas and can maintain the function without causing an obstacle to the electronic equipment of the emergency switchboard (see Patent Document 1).

The installation environment of the electrical equipment in the ship already proposed by the applicant of the present application will be described with reference to FIG. FIG. 3 is a partial cross-sectional view in the vicinity of the stern showing the installation location of the main switchboard in the conventional example.
In FIG. 3, a main engine 108 is installed in an engine room 101 located at the stern of the ship 100. When the main engine 108 operates, the propeller 110 rotates via a shaft (not shown), and the ship 100 driving forces are generated. In many cases, the main engine 108 is a diesel engine, and exhaust gas generated by combustion of heavy oil as fuel is discharged out of the ship through an exhaust pipe 109 connected to the main engine 108.

  The electrical equipment including the main switchboard 103 is housed in a main engine control room 102 installed in an open space in the engine room 101, and the main engine control room 102 is provided with air conditioning equipment. . This air conditioning equipment includes an air conditioner 104 installed in the engine room 101, an intake duct 105 that is connected to the air conditioner 104 and sucks air in the engine room 101, and a main engine control that is connected to the air conditioner 104. An air supply duct 106 that supplies air conditioned in the chamber 102 is supplied. The supplied air is exhausted from the exhaust duct 111 to the outside of the ship.

JP 2002-37193 A

However, since the air conditioner composed of the air conditioner 104, the intake duct 105, and the air supply duct 106 described above has the above-described structure, there are the following disadvantages.
(1) Since air to be conditioned is sucked from the engine room, the air contaminated by the scattering of oil accompanying the operation of the main engine etc. is supplied as it is into the main engine where the electrical equipment is installed. .
(2) While the engine room temperature increases with the operation of the main engine, etc., the air conditioner provided in the main engine control room is provided in the limited main engine control room. However, the size of the air is limited, and the air that is conditioned may not reach the predetermined temperature and humidity required to maintain the performance of the electrical equipment.

  In addition, the air cleanliness and the degree of temperature / humidity management required to maintain the performance of the electrical equipment described above are required to be stricter. In other words, in Super Eco Ship equipped with a counter-rotating propeller type pod propulsion machine and a low environmental load gas turbine engine, a low environmental load type gas turbine engine is used to generate electricity, and the electricity is used as a power source to create a vertical container called a pod. Electric control in Super Eco Ship is used for all electric devices more than before, such as an electric propulsion mechanism that obtains propulsive force by rotating a counter rotating propeller with an electric motor housed in the inside (see Fig. 1) In addition, there is a demand for high-precision devices, and microcomputers are frequently used for electric devices including electronic devices, so that electric devices are required to be more complicated and sophisticated than ever before. These electrical devices may malfunction in a hot and humid environment, and maintaining an environment in which such electrical devices are placed under optimum conditions is an important issue.

  Accordingly, the present invention provides an electrical apparatus that can maintain the environment of an electrical equipment room that houses electrical equipment that requires an appropriate temperature / humidity environment and / or a clean air environment even under stricter requirements than before. The purpose is to provide room air conditioning.

In order to achieve the above object, an air conditioner for an in-vessel electrical equipment room according to the first aspect of the present invention has at least a cargo pump control panel in a ship having an electric propulsion mechanism that obtains propeller propulsion power using electricity as a power source. The electrical equipment room in the ship that houses the high-voltage switchboard and pod propulsion motor board crosses the cargo pump control panel , high-voltage switchboard, and pod propeller motor board in multiple layers independently of the sealed engine room. A space is formed on the deck, independent from the air conditioning equipment installed in the space other than the ship electrical equipment room installed on the deck, and isolated from the engine room An air conditioner having a suction port is provided.
The invention according to claim 2 of the present application is the air conditioner for an in-vessel electrical device room according to the above-mentioned claim 1, wherein the in-vessel electrical device room contains at least the cargo pump control panel. A first electrical equipment room for housing the pod propulsion motor motor board, and the first electrical equipment room on the first deck. The second electric equipment room is arranged on the second deck, and the third electric equipment room is arranged on the third deck.
Furthermore, the invention according to claim 3 of the present application is the air conditioner for an electric equipment room in a ship according to claim 1 or claim 2, wherein the air conditioner includes an air conditioner, the air conditioner, and the electric equipment. An air supply duct and a return air duct communicating with the room were provided, and the air conditioned by the air conditioner was supplied into the electric equipment room in the ship through the air supply duct, and then supplied. A closed cycle in which air is returned from the in-vessel electrical equipment room to the air conditioner through the return air duct is characterized.
And the invention concerning Claim 4 of this application is an air conditioner of the electric equipment room in a ship of the said Claim 1 or Claim 2, The said air conditioner is an air conditioner, the said air conditioner, and the said electric equipment. An air supply duct communicated with the chamber, one end opened to the outside of the ship and the other end connected to the air conditioner, and one end opened to the outside of the electrical equipment room and the other end connected to the air conditioner And the outside air sucked from the intake duct is air-conditioned by the air conditioner, and is supplied to the electrical equipment room through the supply duct, and then the supplied air is supplied to the exhaust duct. It is characterized by comprising in the open cycle which exhausts out of the said electric equipment room | chamber via.
Further, the invention according to claim 5 of the present application is the air conditioning facility for an in-vessel electrical device room according to claim 1 or 2, wherein the air conditioning facility includes an air conditioner, the air conditioner, and the electrical device. An air supply duct and a return air duct communicated with the chamber, one end opened to the outside of the ship and the other end connected to the air conditioner, and one end opened to the outside of the electrical equipment room and the other end of the air It has an exhaust duct connected to the conditioner and is configured to be freely switchable from a closed cycle to an open cycle, or from an open cycle to a closed cycle.

As described above, according to the first aspect of the present invention, the electrical equipment room forms a sealed space and is installed on the deck, and the air conditioning equipment provided in the electrical equipment room is installed on the deck. Since the air-conditioning equipment provided in the other spaces is separate and independent, and operates independently, the following effects are obtained.
(1) Since the electrical equipment room installed on the deck is sealed and separated from other spaces, it is not affected by the environment of other spaces close to the electrical equipment room.
(2) In addition, the air conditioning equipment installed in the electrical equipment room is a separate and independent facility from the air conditioning equipment installed in other spaces, and is optimally suited for electrical equipment. It can be air-conditioned with the condition temperature / humidity and uncontaminated air.

Moreover, according to the invention which concerns on Claim 2, since an electric equipment room is divided | segmented for every apparatus used as the object of control or power distribution, and it installs on each deck, there exist the following effects.
(1) Since the electric equipment room is divided into small spaces, the entire room can be placed in a uniform environment without causing uneven temperature / humidity environment.
(2) Since it is possible to divide each device to be controlled or distributed and install an electric device close to the target device, it is possible to improve the efficiency of operations such as management and maintenance for each device. .

And according to the invention concerning Claim 3 of this application, since the air-conditioning equipment provided in an electric equipment room employ | adopts a closed cycle system, there exist the following effects.
(1) Since air conditioned air is circulated and used in one or a plurality of electrical equipment rooms, the air conditioning efficiency is increased and the load on the air conditioner during operation can be kept low.
(2) Since the outside air containing salt is not taken in, the electrical equipment housed in the electrical equipment room can be prevented from salt damage.

Furthermore, according to the invention according to claim 4 of the present application, since the air conditioning equipment provided in the electrical equipment room employs an open cycle system, the following effects are obtained.
(1) Since fresh air can always be supplied into the electrical equipment room and the composition of the supplied air is the same as that of the outside air, the living environment of workers working in the electrical equipment room can be preserved.
(2) In the case where a salt removal means such as a salt damage prevention filter is interposed in the intake duct constituting the air conditioning facility, or in the case of outside air with a low salt concentration, the salt damage of the electrical equipment does not occur.

  And according to the invention concerning Claim 5, since the air-conditioning equipment provided in the electrical equipment room can switch between the closed cycle system and the open cycle system, the effect of the above-mentioned closed cycle system, the open cycle The effect of the method can be combined.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a stern portion showing a structure of an air conditioning facility of an in-vessel electrical equipment room according to a first embodiment according to the best mode for carrying out the present invention.
The first embodiment is a closed-cycle air conditioner in a ship electrical equipment room. In FIG. 1, reference numeral 1 is a ship, reference numeral 3 is an engine room, reference numeral 5 is a gas turbine engine, reference numeral 7 is a double inversion. Propeller, reference numeral 9 is a pod propulsion unit, reference numeral 11 is an air conditioner for an electric equipment room in a ship of the first embodiment, reference numeral 31 is a first electric equipment room, reference numeral 32 is a second electric equipment room, reference numeral 33 is Third electrical equipment room, 34 is a cargo pump control panel, 35 is a high voltage switchboard, 36 is a pod propulsion motor board, 51 is an air conditioner, 53 is an air supply duct, 55a And 55b are return air ducts, reference numerals 71a, 71b and 71c are outlets, reference numerals 73a, 73b and 73c are inlets, reference numeral 91 is a first deck, reference numeral 92 is a second deck, and reference numeral 93 is a third deck. .

  In FIG. 1, the engine room 3 of the ship 1 is called a first deck 91 (generally called “stern tower deck”) and a second deck 92 (generally called “upper deck”). ) And a third deck 93 (generally referred to as “second deck”), and a gas turbine engine 5 as a main engine is mounted on the third deck 93 in the engine room 3. The first deck 91 and the second deck 92 are penetrated. The first deck 91 in the engine room 3 is mainly laid with ducts vertically and horizontally, the second deck 92 is mainly provided with a transformer and an auxiliary gas turbine, and the third deck 93 is provided with In addition to the gas turbine engine 5 described above, a pod transformer, a pod propulsion / swivel device, and the like are installed. Here, the propulsion mechanism of the ship 1 will be described. Electricity generated by the operation of the gas turbine engine 5 is sent to a motor (not shown) housed in the pod propulsion unit 9, and the counter rotating propeller is rotated by the rotation of the motor. 7 is rotating to obtain a propulsive force of the ship 1.

  In addition, on the bow side of the engine room 3, the first electrical equipment room 31 on the first deck 91, the second electrical equipment room 32 on the second deck 92, and the third deck 93 are provided. A third electrical equipment room 33 is installed, and in the first electrical equipment room 31, electrical equipment and the like related to control of equipment related to cargo such as cargo pump control panels 34 are stored. In the electrical equipment room 32, electrical equipment of high voltage switchboards 35 such as a high voltage switchboard, a pod motor board, a transformer panel, etc. are housed, and in the third electrical equipment room 33, a pod propulsion machine is provided. 9 includes electrical devices such as an inverter panel and other pod propulsion machine motor boards 36.

Here, the configuration of the air conditioning equipment 11 in the ship electrical equipment room according to the first embodiment will be described.
The air conditioner 11 in the ship electrical equipment room of the first embodiment includes an air conditioner 51, an air supply duct 53, return air ducts 55a and 55b, air outlets 71a, 71b and 71c, an air inlet 73a, 73b and 73c.

The other end of the air supply duct 53, one end of which is connected to the air conditioner 51, is the lower part of the wall surface on the engine room 3 side of the first electric equipment room 31, the second electric equipment room 32, and the third electric equipment room 33. Are connected to the air outlets 71a, 71b and 71c. The return air duct 55 b is installed vertically on the bow side in the second electrical equipment chamber 32, and the upper end passes through the first deck 91 and opens into the first electrical equipment chamber 31. ing. The lower end of the return air duct 55b penetrates the second deck 72 and is connected to a suction port 73c drilled in the ceiling of the third electrical equipment chamber 33, so that the second electrical equipment room of the return air duct 55b is provided. A suction port 73b is formed in the vicinity of the ceiling 32, and the suction port 73a formed in the wall surface near the ceiling of the first electrical equipment chamber 31 is connected to the air conditioner 51 through the return air duct 55a. Has been.
In addition, an airtight door for keeping a sealed state is hinged at the doorway (not shown) installed in the first electric equipment room 31, the second electric equipment room 32, and the third electric equipment room 33. Of course.

Next, the operation of the air conditioning equipment 11 in the ship electrical equipment room of the first embodiment will be described.
The air, which has been adjusted to a predetermined temperature and humidity by the air conditioner 51 and further has dust and the like removed by passing through a filter, passes through the air supply duct 53 from the outlets 71a, 71b, and 71c in the first electrical equipment room. 31, the second electric equipment room 32 and the third electric equipment room 33 are continuously supplied with air. On the other hand, the air conditioner 51 sucks the air in the first electrical equipment chamber 31 from the suction port 73a through the return air duct 55a. Therefore, the inside of the first electrical equipment chamber 31 is in a negative pressure state, and the return air duct 55b is connected from the second electrical equipment chamber 32 and the third electrical equipment chamber 33 that have been pressurized by the supplied air. Air flows into the first electrical equipment chamber 31 through the passage.

In this way, the air conditioned air circulates in the first electric device room 31, the second electric device room 32, and the third electric device room 33 through the air conditioner 51. The air outlets 71a, 71b and 71c are formed in the lower part of the wall surface on the engine room 3 side of the first electric equipment room 31, the second electric equipment room 32 and the third electric equipment room 33, The suction ports 73b and 73c are formed in the vicinity of the bow-side ceiling of the second electric equipment room 32 and the third electric equipment room 33, so that the air conditioned air is uniformly distributed in the first electric equipment room 31. It is possible to reach the second electric equipment room 32 and the third electric equipment room 33 and make the whole room in a uniform environment.
In addition, since the 1st electrical equipment room 31, the 2nd electrical equipment room 32, and the 3rd electrical equipment room 33 are long in a ship side direction on a plane, the blower outlets 71a, 71b, 71c, and the suction inlets 73a, 73b , 73c are preferably installed in plural.

Next, the air conditioning equipment of the ship electrical equipment room of the second embodiment according to the best mode for carrying out the present invention will be described.
FIG. 2 is a cross-sectional view of the stern portion showing the structure of the air conditioning equipment of the in-vessel electrical equipment room of the second embodiment according to the best mode for carrying out the present invention. The second embodiment is an open cycle type air conditioner for an in-vessel electrical equipment room. In FIG. 2, the same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

First, the description about the engine room 3 and the like of the ship 1 is exactly the same as that described in the first embodiment, so the description thereof is omitted and the air conditioning equipment in the ship electrical equipment room of the second embodiment. However, since there are many places in common with the air conditioning equipment 11 in the ship electrical equipment room of the first embodiment, only the differences will be mainly described.
In FIG. 2, reference numeral 13 denotes an air conditioning facility in the ship electrical equipment room according to the first embodiment, reference numeral 57 denotes an intake duct, reference numerals 59 a and 59 b denote exhaust ducts, and reference numerals 75 a, 75 b, and 75 c denote exhaust ports.

Here, the configuration of the air conditioning equipment 13 in the ship electrical equipment room of the second embodiment according to the best mode for carrying out the present invention will be described.
The air conditioner 13 in the ship electrical equipment room includes an air conditioner 51, an intake duct 57, an air supply duct 53, exhaust ducts 59a and 59b, outlets 71a, 71b and 71c, exhaust outlets 75a, 75b and 75c.

  The other end of the intake duct 57 whose one end is connected to the air conditioner 51 is open to the outside of the ship. As in the first embodiment, the other end of the air supply duct 53, one end of which is connected to the air conditioner 51, is the first electric equipment room 31, the second electric equipment room 32, and the third electric equipment room. 33 is connected to outlets 71, 71b and 71c formed in the lower portion of the wall surface on the engine room 3 side. The exhaust duct 59 b is installed in the vertical direction on the bow side in the second electrical equipment chamber 32, and the upper end passes through the first deck 91 and opens into the first electrical equipment chamber 31. . Further, the lower end of the exhaust duct 59b passes through the second deck 92 and is connected to an exhaust port 75c drilled in the ceiling of the third electrical equipment chamber 33, so that the second electrical equipment chamber 32 of the exhaust duct 59b is connected. An exhaust port 75 b is formed in the vicinity of the ceiling, and the tip of the exhaust duct 59 a connected to the exhaust port 75 a formed in the wall surface in the vicinity of the ceiling of the first electrical equipment chamber 31 faces the engine room 3. It is open.

Next, the operation of the air conditioning equipment 13 in the ship electrical equipment room of the second embodiment will be described.
The outside air taken from outside the ship through the intake duct 57 is adjusted to a predetermined temperature and humidity by the air conditioner 51, and the air from which dust and the like are removed by passing through a filter passes through the supply duct 53. Then, air is continuously supplied from the air outlets 71a, 71b and 71c into the first electric device chamber 31, the second electric device chamber 32 and the third electric device chamber 33. And the air in the 1st electric equipment room 31 which became the pressurization state with the supplied air is exhausted out of the 1st electric equipment room 31 through the exhaust duct 59a from the exhaust port 75a. On the other hand, the second electric device chamber 32 and the third electric device chamber 33 are also pressurized by the supplied air, and therefore flow into the first electric device chamber 31 through the exhaust duct 59b. Thereafter, the air is exhausted from the exhaust port 75a through the exhaust duct 59a to the outside of the first electrical equipment chamber 31.

In this way, the air conditioned air circulates in the first electric equipment room 31, the second electric equipment room 32, and the third electric equipment room 33 and then outside the first electric equipment room 31. The first electric equipment room 31, the second electric equipment room 32, and the third electric equipment room 33 are always fresh and filled with air set to a predetermined temperature and humidity. The air outlets 71a, 71b and 71c are formed in the lower part of the wall surface on the engine room 3 side of the first electric equipment room 31, the second electric equipment room 32, and the third electric equipment room 33, and are exhausted. Since the openings 75b and 75c are formed in the vicinity of the bow-side ceiling of the second electric equipment room 32 and the third electric equipment room 33, the air-conditioned air is uniformly distributed in the first electric equipment room 31, The entire interior of the second electrical equipment room 32 and the third electrical equipment room 33 can be brought into a uniform environment.
As in the first embodiment, it is preferable to install a plurality of air outlets 71a, 71b, 71c and a plurality of exhaust ports 73a, 73b, 73c.

  As described above, the first embodiment is a closed cycle system, and the second embodiment is an open cycle system. This is configured so that the closed cycle system and the open cycle system can be used together or can be switched appropriately. It is good.

  Briefly describing the present invention, the air conditioning equipment of the in-vessel electrical equipment room according to the present invention comprises an air conditioner, an air supply duct connected to the air conditioner and the electrical equipment room, a return air duct, and one end thereof. An air intake duct that is connected to the air conditioner and has the other end opened to the outside of the ship, and an exhaust duct that has one end connected to the air conditioner and the other end opened to the outside of the electrical equipment room. This is almost the same as the example and the second embodiment.

The difference is that an air supply duct connected to the air conditioner is provided with an opening / closing valve, and it is possible to supply outside air by operating the opening / closing valve, and in the first electrical equipment room, A return air duct connected to the air conditioner and an exhaust duct open at the other end outside the electrical equipment room, and an open / close valve is interposed in the return air duct and the exhaust duct. This makes it possible to switch between the closed cycle method and the open cycle method.
That is, the opening / closing valve interposed in the air supply duct is “closed”, and the opening / closing valve interposed in the return air duct and the exhaust duct is “open” and “closed”, respectively. It becomes a closed cycle system, and the opening / closing valve interposed in the air supply duct is set to “open”, and the opening / closing valve interposed in the return air duct and the exhaust duct is set to “closed” and “open”, respectively. The open cycle system of the embodiment is used.

FIG. 1 is a rear view showing the structure of the ship exhaust gas discharge facility of the first embodiment in a partial cross section. FIG. 2 is a rear view showing the structure of the ship exhaust gas discharge facility of the second embodiment. FIG. 3 is a partial cross-sectional view in the vicinity of the stern showing the installation location of the main switchboard in the conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ship 3 Engine room 5 Gas turbine engine 7 Counter-rotating propeller 9 Pod propulsion machine 11 Air-conditioning equipment 13 of the electrical equipment room in the ship of 1st Example Air-conditioning equipment 31 of the electrical equipment room of the ship of 2nd Example 1 electrical equipment room 32 second electrical equipment room 33 third electrical equipment room 34 Cargo pump control panel 35 High voltage switchboards 36 Pod propulsion machine motor panel 51 Air conditioner 53 Supply duct 55a Return air duct
55b Return air duct 57 Air intake duct 59a Air exhaust duct 59b Air exhaust duct 71a Air outlet 71b Air outlet 71c Air outlet 73a Air inlet 73b Air inlet 73c Air inlet 75a Air outlet 75b Air outlet 75c Air outlet 91 First deck 92 Second deck 93 Third deck

Claims (5)

In a ship having an electric propulsion mechanism that obtains propeller propulsion power using electricity as a power source,
At least cargo pump control panel, high-voltage switchboards, ship in an electrical equipment room for accommodating a pod propulsion unit motor board is independent of the engine room which is closed these cargo pump control panel, high-voltage distribution board, the pod propulsion unit motor Release It is installed on the deck to form a space that spans multiple layers, independent from the air conditioning equipment provided in other spaces other than the ship electrical equipment room installed on the deck, and An air conditioning system for an in-vessel electrical equipment room, characterized in that an air conditioning system having a suction port isolated from an engine room is provided. The in-vessel electrical equipment room includes at least a first electrical equipment room that houses the cargo pump control panel,
A second electrical equipment room for housing the high voltage switchboard;
A third electrical equipment room for housing the pod propulsion motor motor board;
The first electrical equipment room is disposed on a first deck;
The second electrical equipment room is disposed on a second deck;
The air conditioner for an in-vessel electrical equipment room according to claim 1, wherein the third electrical equipment room is disposed on a third deck. The air conditioning facility comprises an air conditioner, an air supply duct and a return air duct that communicate with the air conditioner and the electrical equipment room,
Air conditioned by the air conditioner is supplied to the electric equipment room in the ship through the air supply duct,
3. The inside of the ship according to claim 1, wherein the supplied air is returned to the air conditioner through the return air duct from the electrical equipment room in the ship to the air conditioner. Air conditioner for electrical equipment room. The air conditioning equipment includes an air conditioner, an air supply duct that communicates with the air conditioner and the electrical equipment room, an intake duct that has one end open to the outside and the other end connected to the air conditioner, An exhaust duct having one end open to the outside of the electrical equipment room and the other end connected to the air conditioner;
Air conditioning the outside air drawn from the intake duct with the air conditioner,
Supplying air into the electrical equipment room through the air supply duct;
3. The air conditioning system for an in-vessel electrical equipment room according to claim 1, wherein the air supply system is configured in an open cycle that exhausts the supplied air to the outside of the electrical equipment room through the exhaust duct. The air conditioner includes an air conditioner, an air supply duct and a return air duct communicated with the air conditioner and the electrical equipment room, one end opened to the outside of the ship, and the other end connected to the air conditioner. An intake duct, and an exhaust duct having one end open to the outside of the electrical equipment room and the other end connected to the air conditioner,
The air conditioner for an in-vessel electrical equipment room according to claim 1 or 2, wherein the air conditioner can be freely switched from a closed cycle to an open cycle, or from an open cycle to a closed cycle.

Images