JPS5837781B2 - Engine Hatsuden Souchi Oyobi Sonoseisakuhouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engine power generator E, and particularly to an engine power generator suitable for use in construction sites without power supply facilities, or emergency power supply facilities in hospitals, factories, and the like.

General (As shown in Figure 1, this engine power generator is divided into three parts: a generator 1, an engine 2 that drives this generator 1, and a control operation device that controls these generators 1 and engine 2. It has a general structure of 3.

The required power is obtained by operating the control device 3.

Further, these various devices are installed on a common platform 4 in consideration of transportation and installation.

The generator 1 and engine 2 are mounted on the pedestal 4C through vibration isolating material to prevent the generated vibrations from being transmitted to other parts.
Furthermore, due to the installation area, the control and operating equipment 3 is mounted on the platform 4 at the upper part of the aircraft 1 via a support frame 5 that straddles this.

Usually, various devices mounted on the platform 4 are covered with a cover 6 to protect them from rain, snow, and dust, and to suppress noise generated from the engine 2.

Inside this cover 6 (in addition to the above-mentioned equipment, there is a radiator 7 and a fuel tank (not shown) that cool the engine 2, as well as wiring and piping connected to the generator 1 and the engine 2 (not shown). It will be stored.

These wiring, piping, etc. are led out to the outside through through holes and flanges in the cover 6 that have a soundproof structure.

In addition, the cover 6 is provided with a door 8 that opens and closes to take in and out the control equipment 3 and to operate it, as well as a door (not shown) for maintaining internal equipment.

In the engine power generator having such a structure, when starting or stopping the engine, the door 8 is opened and the control operation device 3 is operated, and the control operation device 3 is appropriately monitored during operation. There is.

However, the engine generator configured as described above {
This had the following inconveniences.

In other words, it takes a long time to complete the manufacture of the engine generator.

In general, each device of an engine power generator, for example, the generator 1, the engine 2, and the control operation device 3, are all designed and manufactured in parallel at a dedicated factory.

Therefore, the number of days required to manufacture each piece of equipment is the minimum required,
After the manufacturing of each of these devices is completed and all the devices are installed on the platform 4, they are covered with a cover 6, and then this cover 6 is fixed on the platform 4.

For this reason, it took a long time to complete the entire device.

To be more specific, the generator 1 and engine 2 can be manufactured or purchased in advance to suit each capacity, but the purpose of use of the control operation device 3 is not determined. We cannot design and manufacture.

Furthermore, since manufacturing the control operation device 3 is a precise work, it requires a longer manufacturing time than the manufacturing days of the generator 1 and the engine 2.

For this reason, there is no reason to install the cover 6 even after the production of the generator 1, the engine 2, and their attached equipment is completed and the installation on the platform 4 is completed. Production of the engine generator will have to be temporarily halted until the production of Step 3 is completed.

In addition, even if the control operation equipment 3 is completed, the installation on the platform 4 is completed, and the cover 6 is attached, wiring and piping work after the cover 6 is installed, especially wiring to the outside of the cover 6,
Since piping work remains, the production time for the engine generator will be considerably longer, and the delivery date will naturally be longer.

On the other hand, engine generators used indoors (in this case, automatic start type that starts electric operation immediately in the event of a power outage, and automatic start type that starts electric operation immediately after a power outage and supplies power within 10 seconds, for example, 10 seconds) There are start-up types and fully automatic types that start operation automatically after a power outage and automatically stop when the power outage is lifted.

The control and operation equipment 3 installed in these devices differs in size depending on the type, and therefore, the control and operation equipment 3
The cover 6 had to be designed and manufactured accordingly, and there was a drawback that the cover 6 could not be used in common for each type of engine generator.

In addition, normally, the control operation device 3 is an electronic device such as a semiconductor device.
In the conventional structure in which the control device 3 is installed inside the cover 6, the heat generated from the engine 2 inside the cover 6 is directly transferred to the control device 3. It also had the disadvantage of being susceptible to damage, being prone to failure, and having a short lifespan.

The present invention has been made in view of the above-mentioned points, and its first purpose is to shorten the manufacturing time of the device, and also to make it possible to share the cover covering the main body even for various types of indoor use. In addition to the first purpose above, the purpose of the second purpose is to protect the control equipment from vibration and heat to extend its life. Provided is an engine power generation device that protects control and operation equipment from external forces during transportation.

The present invention provides a cover that covers the generator, the engine, and the control operation equipment, and includes a first cover that covers the generator and the engine, and a second cover that covers the control operation equipment. Above the part of the cover that covers the vicinity of the generator (this part forms the storage part for the control operation equipment, and the second part is placed in the storage part)
The control operation equipment covered with the cover of the first and second
The first cover is installed so as to form a gap between the covers, and a vibration isolating material is interposed in the gap to hold a control operation device on the first cover. In the above-mentioned structure, the storage section for the control and operating equipment is formed by a recess that extends inward from the generator side end of the first cover and extends to a position substantially above the generator; The second purpose was achieved by housing the control and operating equipment in the space.

Hereinafter, the present invention will be explained in detail based on a first embodiment of the drawings.

Incidentally, the same reference numerals are used for the same parts as in the past.

FIG. 2 and FIG. 3 (showing one embodiment of the present invention).

In this figure, 1 is a generator, 2 is an engine for driving this generator 1, and 7 is a radiator for cooling this engine 2. It is installed on the pedestal 4.

Then, a first cover 6A that covers the generator 1, engine 2, radiator 7, and their attached equipment is attached on the platform 4.

This first cover 6A has an integral structure, and
In particular, in order to suppress the noise generated from the engine 2 from being emitted to the outside as much as possible, it has a soundproof or muffled structure.

Furthermore, this first cover 6A is located above the generator 1 {
Form a stepped portion 9 in the hit area to form a storage section for the control storage/storage equipment 3.

6B is a second cover that covers the control and operation equipment 3 that controls the generator 1 and the engine 2, and the control and operation equipment 3 that is covered with this second cover 6B is attached to the stage of the first cover 6A. It is attached to the storage section of the section 9 via a vibration-proof support material S2 so as to maintain the gap G.

The purpose of using the anti-vibration support material S2 for attaching the second cover 6B is to protect the control and operation equipment 3 including meters and precision equipment from vibrations.

8A to 8C are doors provided on the first cover 6A or the second cover 6B, respectively.

In the case of a normal engine power generation system E, the manufacturing and procurement of the generator 1, engine 2, control and operation equipment 3, base covers, and related equipment begins at the same time as the design is completed (in each specialized factory). .

The generator 1 and engine 2 can be used for purposes other than engine generators.Since they are mass-produced in various specifications, they are easy to procure. The cover 6B and the control/operation device 3 are not mass-produced products, and therefore, the manufacturing process takes time. In particular, the control/operation device 3 requires detailed manufacturing work, which requires a long manufacturing period.

However, in the present embodiment described above, since the control operation device 3, which requires a long manufacturing time, is housed in the second cover 6B that is separate from the first cover 6A, it is difficult to complete the control operation device 3. The sacrificial work related to the first cover 6A can be performed without waiting.

That is, the base 4, the first cover 6A, and the second cover 6
When B is completed, the generator 1, engine 2, radiator 7, and other related equipment other than the control operation equipment 3 are installed on the platform 4.

Normally, production would have been temporarily suspended at this point, waiting for the control and operation device 3 to be completed, but in this embodiment, the first cover 6A and the second cover 6B are installed immediately. Then, all necessary wiring and piping inside and outside the first cover 6A are completed to complete the ant control work.

If the control operation device 3 is completely intact during this ant control work,
When the assembly work is completed, the engine generator can be completely decommissioned by installing the control device 3 inside the second cover 6B and making the necessary wiring connections.

Further, even if the control operation device 3 is completely installed after the above-mentioned dovetailing work is completed, the overall production and assembly time can be shortened since the installation of the covers and the assembly work have already been completed. become.

Incidentally, the conventional standard delivery time for the engine generator I, which drives a 100 KVA generator with a 125 HP diesel engine and has external dimensions of 1350 mm in width, 1640 mm in height, and 2800 mm in length, was two months. In contrast, by using this example, the delivery time could be shortened by 10 days.

Furthermore, since the gap G is maintained between the first cover 6A and the second cover 6B, the heat generated from the engine 2 in the first cover 6A is transferred to the second cover 6B. The transmission can be cut off, and therefore, the semiconductor elements used in the control device 3 can be protected, failures caused by heat can be eliminated, and the life of the control device 3 can be extended.

This can be confirmed by measuring the temperature near the engine 2 inside the first cover 6A and inside the second cover 6B after continuously operating the engine generator with the configuration shown in FIG. 2 for 5 hours. , and 23° C., and it has been confirmed through experiments that the inside of the second cover 6B is almost at room temperature and is not affected by the heat from the engine 2.

Incidentally, in the first embodiment described above, glass fibers were attached to the inner surface of the first cover 6A, which had adsorption and heat insulation effects.

Furthermore, if necessary, a heat insulating material may be interposed in the gap G, or the gap G may be used as a space for cooling.

Furthermore, due to the structure of this embodiment, in addition to the above-mentioned effects, the following effects can also be obtained.

In other words, this type of engine generator is generally installed at a construction site or indoors, so workers are constantly coming and going in the area, or there are offices or residences nearby. Therefore, it is necessary to design and manufacture the engine to reduce the noise generated from the engine generator as much as possible so as not to cause noise pollution.

Therefore, in the past, as a countermeasure against this noise, a cover 6
A sound absorbing material or a sound deadening material is pasted on the inner surface of the cover 6, and by pasting these sound absorbing materials, the noise inside the cover 6 can be reduced to about 108 db to about 75 db outside the cover 6.

However, in the conventional engine generator, one cover 6
Since the engine 2 and generator 1, which are sources of noise generation, and the control operation equipment 3 unrelated to noise generation are installed inside the engine generator, when operating the control operation equipment 3 while the engine generator is operating, the door 8 is closed. When opened, a fairly loud sound of approximately 108 db comes out from the door 8, causing considerable discomfort to the operator.

Therefore, continuing to operate the engine generator with the door 8 open not only impairs the operator's well-being, but also causes discomfort to others. There was an inconvenience in that the door 8 on the front of the control device had to be opened and closed.

In contrast, in this embodiment, the second cover 6B housing the control device 3 is formed independently of the first cover 6A housing the engine 2 and generator 1. Therefore, even if the door 8A on the front of the control operation device 3 is opened, the door 8A
There's no noise coming out of it.

Furthermore, since the first and second covers 6A and 6B are interposed with the vibration-proof support material S2 and maintain the gap G,
Even if the first cover 6A vibrates due to the noise E generated by the engine 2, the vibration is not transmitted to the second cover 6B.
Therefore, even if the door 8 is opened, no noise will come out.

According to the inventor's experiments, it was possible to achieve approximately 75 db.

For example, in the conventional case C, if the countermeasure is simply installing a single partition plate between the control device 3, the engine 2, and the generator 1, the noise transmitted through the cover 6 will be caused by one noise. The secondary noise generated by vibrations and the secondary noise transmitted from the partition plate are trapped in the storage area 6 of the control operation equipment 3 surrounded by the partition plate and cover 6, and when the door 8 is opened, the secondary noise is ejected. The noise level is about 95db, which also causes discomfort.

Note that these noise data are average measured values at points 1 m apart around the cover.

? In addition, according to this embodiment E, the dimensions of the control device 3, in other words, the dimensions of the second cover 6B, are of the automatic start type, 10
Second-start type, fully automatic type (Thus, even if the dimensions change, the dimensions of the first cover 6A will not be affected, it is possible to standardize the first cover 6A and further shorten the production time. It is.

In addition, in the above explanation, a step part 9 is provided on the first cover 6A to form a storage part, and the control operation device 3 covered with the second cover 6B is placed in the cavity for vibration isolation. Although it is designed to be installed through a supporting material, in addition to the various effects mentioned above, it is also necessary to protect the second cover 6B that houses the control operation device 3 (see 6 and 7 can also be configured as shown in FIG.

That is, in FIG. 4, in order to protect the four sides of the second cover 6B, which houses the control device 3 and is shaped like a rectangular parallelepiped, four sides are provided at the upper corner of the first cover 6A that covers the vicinity of the generator. The storage section is formed by providing a recess 10 with a recess 10, and the control operation device 3 covered by the second cover 6B is installed in the recess 10. The back portion is protected by the first cover 6A.

In addition, the one shown in FIG. 5 extends inward from the generator side end surface of the first cover 6A in order to protect the left and right sides, back surface, top surface, and bottom surface of the second cover 6B. A recess 11 is provided that extends above the generator and covers five sides of the second cover 6B, and within this recess 11, the control operating device 3 covered by the second cover 6B is installed. The second cover 6B is protected with the door 8A side of the cover 6B facing the front.

In the first embodiment shown in FIGS. 4 and 5, the fact that the second cover 6B can be protected means that the control operation equipment 3, which is made of precision parts, can be protected. This is to say, these protections are intended to protect the engine generator from external forces during transportation, during packing, dismantling, and on-site installation.

During these operations, work tools and transportation tools often fall or hit the engine generator, and if the transportation tools are placed in the wrong position, parts of the equipment may be damaged. However, the structure shown in the above embodiment (FIGS. 4 and 5) takes such external forces into consideration.

In addition, FIGS. 6 and 7 (this example shows a storage section (frame) shaped by providing a step 9 of the first cover 6A of the embodiment shown in FIGS. 2 and 3). Assemble the body 12, and remove the cover plates 13A, 13B, 13C and the door 14 from above the frame 12 to cover the storage section and cover the control operation equipment 3 installed in this storage section. The second cover 6B is E-rubbed to protect the entire surface.

With this structure, in addition to the effects of the embodiments shown in FIGS. 2 and 3, protection from external forces is achieved.
Outdoors such as construction sites {engine generator used with trowel (
This is particularly advantageous in that it protects the second cover 6B from rainwater, dust, and solar heat.

In addition, if a part of the first cover 6A (this room) is constructed like this, some of the sound generated from the engine 2 will be trapped inside, and it seems that noise will be emitted when the door 14 is opened. However, the cover plates 13A to 13C that make up this room and the door 14 are not vibrationally connected to the first cover 6A, so even if the door 14 is opened, the noise level is lower than that of the door 14. It is almost the same as the closed state.

According to the engine power generation device of the present invention described above, the cover that covers the generator, the engine, and the control operation equipment is divided into a first cover that covers the generator and the engine, and a second cover that covers the control operation equipment. A storage section for the control and operating equipment is formed above a portion of the first cover that covers the vicinity of the generator, and the storage section (which is covered by the second cover) is formed above the first cover. The control operation device is installed so as to form a gap between the first and second covers, and the control operation device is placed on the first cover through the vibration isolating material in the gap. Since the dimensions of the control and operation equipment (regardless of the size of the generator,
It is possible to install the first cover that houses the engine, and also perform sacrificial work inside and outside the first cover. A gap is formed between the cover and the gap, and a vibration isolating material is interposed between the gap and the heat generated by the engine in the first cover is transferred to the second cover. This prevents failures caused by heat and protects the control equipment from vibrations, thereby protecting the semiconductor elements used in the control equipment and prolonging the life of the control equipment. The first cover that covers the , generator, and engine can be of various types (therefore, even if the dimensions of the control operating equipment change, only the second cover needs to be changed, and the first cover can be shared. .

Further, in the above-mentioned structure, the housing portion for the control operation device is formed with a recess that extends inside E from the generator side end of the first cover and extends to a position substantially above the generator; In addition to the above-mentioned effects, since the control and operation equipment is housed in one recess, the control and operation equipment, which is made of precision parts, is protected from external forces during transportation. This type of engine generator can be protected and is extremely effective.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view showing a conventional engine power generator; Fig. 2 is a schematic side view showing an embodiment of the engine power generator of the present invention; Fig. 3 shows the main parts of Fig. 2; FIGS. 4 and 5 are perspective views showing essential parts of another embodiment of the present invention, and FIG. Partially broken schematic side view,
FIG. 1 is a view taken along arrow P in FIG. 1... Generator, 2... Engine, 3.
... Control operation equipment, 4 ... Base, 6 ...
...Cover, 6A...First cover 6B
...Second cover, 8, 8A, 14...
・Door, 9...Stepped portion of first cover, 10, 11
. . . Recessed portion of first cover, 12 . . . Frame body, 13A, 13B, 13C . . . Covering plate.

Claims (1)

[Scope of Claims] 1. An engine power generation device (hereinafter referred to as an engine power generation device) comprising a generator, an engine that drives the generator, and a control operation device that controls the engine and the generator, and these are covered with a cover. In this case, the cover is composed of a first cover that covers the generator and the engine, and a second cover that covers the control operation equipment, and the first cover covers the vicinity of the generator. A storage part for the control and operation equipment is formed above the part, and a space is formed between the first and second covers to store the control and operation equipment covered by the second cover in the storage part. At the same time, a vibration isolating material is interposed in the gap to
An engine generator characterized by holding control operation equipment on the cover of the engine generator. 2. In the device described in claim 1, the storage portion for the control operation device is formed by extending a recessed portion extending inward from the generator-side end of the first cover to a position substantially above the generator. Alternatively, an engine power generation device characterized in that a control operation device is housed in the recess.