JPS59191448A - Marine power generating apparatus - Google Patents

Abstract

PURPOSE:To reduce an installing area of a marine power generating apparatus without necessity of M-G by fixedly connecting and clutch-connecting a master shaft generator, a slave shaft generator, a generator driving engine and a normal service generator onto a shaft through a gear for accelerating the rotation of a main engine. CONSTITUTION:The rotation of a main propulsion engine 21 is accelerated via a gear 22, and a master shaft generator 23, a slave shaft generator 26, a generator driving engine 24 and a normal service generator 25 are coupled via flange-connections 27, 31 and clutch-connections 29, 30 onto a shaft. The connections 27, 29, 30, 31 of the engines and the generators are coupled or separated according to the rotation (during voyage) or stoppage (mooring) and a defect, a repair or an inspection state of the engine 21. In this manner, M-G is eliminated, and the installing area is saved. A load which is weak for noise is readily protected against the noise.

Description

[Detailed description of the invention] The present invention relates to a marine power generator.

There are cases where a ship's supply circuit, which has many restrictions, is equipped with a DC motor or the like controlled by an SCR unit.

In other words, Fig. 1 is a schematic wiring diagram showing the arrangement of a conventional DC motor, in which 1 is the main generator, 2 is the main switchboard, 3 is the power converter, 4 is the SCR unit, and 5 is the regular low voltage circuit. 6 is a regular low voltage circuit transformer' @ (MG) device, 7 is a regular low voltage power supply board, 8 is a circuit breaker, 9 is an emergency switchboard, 10 is an emergency generator, 1 node 12 is an emergency low voltage circuit transformer, 12 is an emergency low voltage circuit MG device, 13 is an emergency low voltage power supply panel, and 14 is a breaker. In FIG. 1, an MG device 6 for a regular low voltage circuit and an MG device 12 for an emergency low voltage circuit supply power to negative devices, such as computers and wireless devices, which are susceptible to noise generated by SCR. In this case, the M-G device 6 for normal low voltage circuit and the M-G device 1 for emergency low voltage circuit are installed in a narrow space such as a ship.
Since it is necessary to arrange equipment like 2, there are problems with securing equipment space and generating noise.

The present invention has been proposed in view of the above circumstances, and its purpose is to connect the generator of the main propulsion engine KM-G device directly or through a speed increasing gear, thereby eliminating the need for the electric motor of the MG device. To provide a marine power generator which can secure a space for installation and solve the problem of noise, and can also provide backup in the event of failure or stoppage of the main propulsion engine.

That is, the marine power generation device according to the present invention includes a shaft power generation device connected to a marine main propulsion engine, a generator used in place of the electric power generation device, a generator driving engine, and the shaft power generation device or the generator driving engine. It is characterized by a connecting part that connects one of the two and a generator used in place of the electric power generator, and it ensures the same functions as the conventional MG device, and also secures a space for the equipment. This solves the noise problem and improves reliability.

Next, one embodiment of the present invention will be described in detail based on FIGS. 2 and 3.

In Figures 2 and 3, 2I is the main propulsion engine;
2 is a step-up gear for accelerating the shaft power generation, 23 is a shaft power generator (mirror shaft generator), 24 is a generator driving engine, 25 is a regular generator, and 26 is a generator used in place of the MG device. (
27 is a connection between the step-up gear 22 and mirror shaft generator 23 (fixed connection or clutch), 28
29 is a connecting portion between the mirror shaft generator 23 and the child shaft generator 26, and 29 is a clutch for connecting the mirror shaft generator 23 and the child shaft generator 26.
30 is a clutch for connecting the generator drive engine 24 and the slave shaft generator 26, and 31 is a connection part (fixed connection or clutch) between the generator drive engine 24 and the regular generator 25.

The mirror shaft generator 23 and the regular generator 25 are synchronous generators, and the child shaft generator 26 is a synchronous generator or an induction type generator. Further, the connecting clutches 29 and 30 are connected by a clutch, and the connecting portions 27, 28, and 31 are connected by either a fixed connection or a clutch.

In the apparatus of the present invention, the following two types of methods can be adopted.

(1) In the method of connecting the parent-child shaft power generator to the main Sakura Seki (Fig. 2), the mirror shaft power generator 1a23 and the child-shaft generator 26 are connected by the connection part 28 to constitute the parent-child shaft power generator. . Further, the mirror shaft generator 23 is connected to the shaft generator speed increasing step amplifier gear 22 and the main propulsion engine 21 through a connecting portion 27 . In this case, if the main propulsion engine 21 is operated, the main propulsion engine 21 → shaft generator increase operation step azob gear 22 → connection part 27 → main shaft generator 23 → connection part 28 → slave shaft generator I can drive. This system is the basis of the parent-child shaft power generation system.

(2) In the method (Fig. 3) in which the parent-child shaft power generator is backed up by a power generation engine, the connection part 27, the connection clutch 2
9, 30, connection (in) and disconnection of connection part 3)
The following system can be configured by combining the following.

In the case of combination number I above, both the mirror shaft generator 23 and the slave shaft generator 26 are driven by the main propulsion engine 21, while the regular power generation FjA 25 (d) is driven by the generator driving engine 24. system configuration, and is the most commonly used method.

In case (2), the mirror shaft generator 23 is driven by the main propulsion engine 2), while the regular generator 25 and the slave shaft generator a26 are both driven by the generator drive engine 24. This method is used when the rotational fluctuation of the main propulsion engine 21 is large.

In the case of Ill, the mirror shaft generator 23 is driven by the main propulsion engine 21, and the male shaft generator 26 is driven by the generator driving engine 2.
This method is used when the connecting clutch 29 fails in the system configuration when the clutch 29 is driven by the clutch 29.

In the case of 1V, the system configuration is such that when the main propulsion engine 2 stops or breaks down, the mirror shaft generator 23 and the child shaft generator 26 are driven by the generator drive engine 24.

In the case of ■, when the main propulsion engine 21 stops or breaks down,
This is the system configuration when the mirror shaft power generator 23, the slave shaft generator 26, and the regular power generator 25 are each driven by the generator driving engine 24.

As described above, according to the present invention, another independent slave shaft generator 26 is connected to the shaft generator (mirror shaft generator) 23 connected to the main propulsion engine 2, and functions as a substitute for the MG device. can be done.

Furthermore, since this newly connected slave shaft generator can be connected to other generator drive engines 24, the reliability of the marine power generator can be improved.

Further, the present invention eliminates the need for the conventional MG device, and therefore provides excellent effects such as securing a space for installing the conventional MG device and solving the problem of noise.

[Brief explanation of the drawing]

1 is a schematic connection diagram of a conventional marine power generator, FIG. 2 is a schematic diagram showing the configuration of one embodiment of the present invention, and FIG. 3 is a schematic diagram of another embodiment. 2... Main propulsion engine, 22... Shaft light volume speed increasing gear, 23... Mirror shaft generator, 24... Generator driving engine, 25... Regular use generator , 26... child shaft generator,
27... Connection portion, 28... Connection portion, 29... Connection clutch, 30... Connection clutch, 31... Connection portion.

Claims (1)

[Claims] A shaft power generator connected to a marine main propulsion engine, a generator used in place of the electric power generator, a generator driving engine, either the shaft power generator or the generator driving engine, and the electric power generator 1. A marine power generation device characterized by comprising: a connection portion for connecting to a generator used in place of the generator.