KR20220076990A - Plant with a means for preventing noise - Google Patents

Abstract

The present invention discloses a container type plant equipped with noise prevention means. The container-type plant 1 provided with the noise prevention means of the present invention comprises: a container housing 10 in which the power generation facility is installed in the inner space as one module in the form of a box having a space therein and forming an external shape; a first noise preventing means (20) installed to communicate with the intake duct or exhaust duct of the container housing and for absorbing noise passing through the intake duct or exhaust duct and blocking it from being emitted to the outside of the container housing; a second noise preventing means (30) installed inside the wall of the container housing and blocking noise generated from the noise source inside the container housing from being emitted to the outside of the container housing; It is installed outside the container housing, collects a noise signal around the container housing that is generated from a noise source of the power generation facility and is emitted to the outside of the container housing, and outputs an anti-phase noise signal based on the collected noise signal to make noise. and a third noise preventing means 50 for offsetting the and a soundproofing case 21 having an outlet connected to the outside air on the other side thereof; Sound-absorbing yarn module installed in the interior of the soundproofing case and arranged so that the sound-absorbing yarns 22 of a certain length having heat resistance and durability are spaced apart from each other in front and rear, left and right, and located in the inner space between the inlet and the outlet of the soundproofing case. (23); includes.

Description

Container-type plant equipped with a noise preventing means {Plant with a means for preventing noise}

The present invention relates to a container-type plant equipped with a noise prevention means, and more specifically, a noise prevention means capable of canceling the noise generated from a noise source inside the container-type plant and blocking the noise from being transmitted to the outside is provided It relates to a containerized plant.

Containerized power plant (CPP) is a containerized power plant (CPP) that has power generation facilities installed inside a container with a certain internal space. It is used in the case where it is not supplied, or where it is difficult to supply power to mountainous regions and island regions, and an engine, a generator, etc. are installed inside the container to reduce noise.

This container type power plant includes an engine and a generator, and includes a plurality of power generation units for converting engine output into electric power. And a plurality of auxiliary units for supplying fuel oil required to the power generation unit and for control and monitoring, these auxiliary units include a main control unit, a fuel oil storage tank, a pump unit, a fuel oil supply unit, and the like.

However, since the container-type power plant has facilities (pumps, motors, generators, etc.) including a number of power generation units installed inside, mechanical noise is generated during operation. And, since these noises are transmitted to the outside of the container-type power plant structure, workers working near the container-type power plant are constantly exposed to these noises, so there is a problem that there is a risk of hearing loss due to noise.

As shown in FIG. 1 , the container type power plant 100 includes a container housing 110 of a certain size and an air supply duct 104 installed on one side of the container housing 110 as shown in FIG. 1 . ) and an exhaust duct 106 installed on the other side.

The container housing 110 is made in the form of enclosing a power generation facility installed therein, and the power generation facility includes a control panel, a radiator, and the like for controlling an engine, a generator and each part, transmitting power and protecting the device. And the air supply duct 104 is provided on one side of the container, and the exhaust duct 106 is provided on the upper surface of the other side of the container.

That is, the air introduced into the container housing 110 through the air supply duct 104 is heated by heat generated from power generation facilities such as an engine, a generator, a control panel, and the like, and then discharged to the outside through the exhaust duct 106. . Therefore, noise generated from noise sources such as power generation facilities is discharged to the outside through the supply air duct 104 and the exhaust duct 106, and is constantly exposed to nearby workers or residents living in the vicinity, resulting in hearing loss due to noise. There are problems that are likely to become

Conventionally, there is no separate countermeasure to fundamentally block noise generated during the operation of a container-type power plant. In order to block the noise, only a soundproof wall is installed around the area where the container-type power plant is installed. However, by installing such a sound barrier, noise cannot be fundamentally blocked, and there is a problem in that a space for installing the sound barrier must be secured in order to install the sound barrier. As such, there is an urgent need to prepare noise countermeasures to reduce noise generated in a container-type plant.

Republic of Korea Patent Registration 10-0269373

The present invention is to solve the problems of the prior art, and, as a main object of the present invention, a noise prevention means capable of blocking noise from being transmitted to the outside of the container-type plant by offsetting the noise generated from the noise source inside the container-type plant It is to provide a container-type plant equipped with this.

In addition, the present invention is to provide a container-type plant equipped with a noise prevention means for preventing noise from being transmitted to the outside by blocking noise emitted to the outside through the intake duct and the exhaust duct of the container housing.

In addition, the present invention blocks the noise emitted to the outside through the wall of the container housing and cancels the noise emitted to the outside of the container housing so that the noise is not exposed to workers working nearby or residents living in the vicinity An object of the present invention is to provide a container-type plant equipped with noise prevention means.

As a means for achieving the object of the present invention, a container-type plant equipped with a noise prevention means according to the present invention,

In a container-type plant including an engine and a generator and equipped with a plurality of power generation facilities for converting engine output into electric power,

a container housing in which the power generation facility is installed in the inner space as a box-shaped module having a space therein and forming an external shape;

a first noise preventing means installed to communicate with the intake duct or exhaust duct of the container housing and for absorbing noise passing through the intake duct or exhaust duct and blocking it from being emitted to the outside of the container housing;

a second noise preventing means installed inside the wall of the container housing and blocking noise generated from a noise source inside the container housing from being emitted to the outside of the container housing;

It is installed outside the container housing, collects a noise signal around the container housing that is generated from a noise source of the power generation facility and is emitted to the outside of the container housing, and outputs an anti-phase noise signal based on the collected noise signal to make noise. A third noise prevention means for offsetting the

The first noise prevention means,

a soundproof case forming an internal space of a certain size and having an inlet connected to the intake duct or exhaust duct on one side and an outlet connected to the outside air on the other side;

Sound-absorbing yarn module installed in the interior of the soundproof case and arranged to be spaced apart from the front, rear, left, and right by a predetermined length of sound-absorbing yarn having heat resistance and durability, and installed in the inner space between the inlet and the outlet of the sound-proofing case; includes; characterized in that

In the present invention, the sound-absorbing yarn module is installed in a suspended form on the upper end of the soundproof case and is made of a size that can fill 70 to 80% of the inner space of the soundproof case.

At the upper end of the sound-absorbing yarn module, an upper fixing plate having a plurality of through-holes penetrating vertically is installed and fixed by arranging and fixing the upper ends of the plurality of sound-absorbing yarns at regular intervals, and at the lower end of the sound-absorbing yarn module, the plurality of The lower end of the sound-absorbing yarn is arranged and fixed at regular intervals, and a lower fixing plate with a weight of a predetermined weight is installed.

A storage tank of a certain size is installed at the lower end of the soundproofing case, and the storage tank is filled with water at a predetermined water level so that the lower fixing plate is submerged, and one or more A resistance plate is installed.

The second noise preventing means includes: a first perforated plate having a flat plate-like structure in which a plurality of holes are perforated at predetermined intervals, which is installed inside the wall as a component constituting the wall of the container housing; a sound absorbing material in close contact with the first perforated plate and one side, and for absorbing noise emitted toward the outside through the first perforated plate; and a second perforated plate in close contact with the sound absorbing material and one side, and having a flat plate-like structure in which a plurality of holes are perforated at positions shifted from the perforated holes of the first perforated plate; The first perforated plate, the sound absorbing material, and the second perforated plate are configured to be in close contact with each other in this order, and the sound absorbing material is further provided on the outside of the first perforated plate and the outside of the second perforated plate, respectively.

The third noise prevention means includes: a plurality of microphones installed in multiple directions at a plurality of positions outside the container housing and configured to collect noise signals around the container housing emitted to the outside of the container housing; a noise processing unit that analyzes the noise signal collected through the microphone and generates an out-of-phase noise signal; and a plurality of speakers installed in multiple directions at a plurality of positions outside the container housing and outputting an out-of-phase noise signal generated by the noise processing unit.

The container type plant equipped with the noise prevention means according to the present invention has the following effects.

First, it is installed in communication with the inlet or outlet of the intake duct exhaust duct of the container housing or the generator silencer, and absorbs noise passing through the intake duct, exhaust duct or generator silencer to prevent the noise generated from the noise source from being transmitted to the outside. Workers who work around the type plant can perform work in a comfortable working environment while being blocked from noise generated by multiple power generation facilities operating inside the container type plant, thereby reducing the risk of hearing loss due to noise during long-term work. has a preventable effect.

Second, by providing a second noise prevention means for filtering the inside of the wall so as not to be emitted to the outside of the container housing to prevent the noise generated from the power generation equipment in the container-type plant from being emitted to the outside, workers working around the container-type plant It is possible to perform work in a comfortable working environment while being cut off from noise generated by multiple power generation facilities operating inside a container-type plant, thereby preventing the possibility of hearing loss due to noise when working for a long time. .

Second, by providing a second noise prevention means for filtering the inside of the wall of the container housing so as not to be emitted to the outside of the container housing, the noise generated from the power generation equipment in the container type plant is prevented from being emitted to the outside, thereby working around the container type plant The effect of preventing the possibility of hearing loss due to noise when working for a long time can be performed in a comfortable working environment while being blocked from noise generated by multiple power generation facilities operating inside a container-type plant. there is

Third, a worker who works around a container-type plant by collecting noise signals collected around the container housing through a plurality of third noise prevention means installed outside the container housing, analyzing them, and outputting an anti-phase noise signal through a speaker can work in a comfortable working environment while being cut off from noise generated by multiple power generation facilities operating inside a container-type plant. have.

1 is a perspective view schematically showing the configuration of a container-type plant according to the prior art.
2 is a perspective view schematically showing the configuration of a container-type plant equipped with a noise prevention means according to an embodiment of the present invention;
3 is a cross-sectional view schematically showing the configuration of a first noise prevention means according to an embodiment of the present invention;
Figure 4 is a partial enlarged cross-sectional view of part 'A' showing the second noise prevention means inside the wall of the container-type plant equipped with the noise prevention means according to an embodiment of the present invention.
5 is a partial enlarged cross-sectional view of another embodiment of part 'A' showing the second noise prevention means inside the wall of the container-type plant equipped with the noise prevention means according to an embodiment of the present invention.
6 is a block diagram schematically illustrating an operation concept of a third noise prevention means according to an embodiment of the present invention.

In order to fully understand the operational advantages of the present invention and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

2 is a perspective view schematically showing the configuration of a container-type plant equipped with a noise prevention means according to an embodiment of the present invention.

As shown, the container-type plant 1 (hereinafter, container-type plant) provided with the noise prevention means of the present invention includes a container housing 10 that forms an internal space of a certain size.

The container housing 10 is made in the form of a box, and a power generation facility is installed therein. Here, the power generation facility may include a plurality of power generation units for converting engine output into electric power. The configuration of a plurality of facilities for power generation inside the container housing 10 may be configured in a modular form in various ways depending on the intended use, and thus may be provided in various arrangement structures. In addition, the container housing 10 may include a door for a worker to enter and exit. In addition, the container housing 10 is provided with a suction duct 4 through which air is sucked from the outside and an exhaust duct 6 through which air is discharged from the inside to the outside.

The present invention blocks or cancels noise generated from noise sources such as power generation facilities so that noise is not transmitted to the outside of the container housing 10 in a comfortable environment without noise for workers performing work around a container-type plant. enable the work to be done. Here, the noise source is a part that generates noise generated by operating the power generation facility, and is a facility that causes noise generated in the container housing 10, for example, an engine, a generator, a blower, and a compressor. can do.

To this end, the first noise prevention means 20 is installed in the intake duct 4 and the exhaust duct 6 of the container housing 10, and noise generated from the noise source through the intake duct 4 or the exhaust duct 6 It should not be transmitted outside. In addition, the second noise prevention means 30 is installed inside the wall 11 of the container housing 10 to prevent noise generated from the noise source from being transmitted to the outside through the wall 11 . In addition, a third noise preventing means 50 composed of a plurality of microphones 51 and a plurality of speakers 53 is installed outside the container housing 10 to reverse the noise transmitted to the outside of the container housing 10 . The phase noise signal is used to cancel the noise so that workers cannot hear it.

First, FIG. 3 is a cross-sectional view showing a preferred embodiment of the first noise prevention means 20 installed in a container-type plant according to the present invention. As shown, the first noise preventing means 20 is installed in communication with the inlet or outlet of the intake duct 4 or the exhaust duct 6 of the container housing 10, and the intake duct 4 ) or the exhaust duct 6 to absorb the noise so that the noise generated from the noise source is not transmitted to the outside. In this specification, although the first noise prevention means 20 installed at the outlet 6a of the exhaust duct 6 will be described, it is natural that the same may be applied to the intake duct 4 or the silencer.

Specifically, the first noise preventing means 20 forms an internal space of a certain size, an inlet 21a connected to the exhaust duct is formed on one side, and an outlet 21b connected to the outside air is formed on the other side. The formed soundproofing case 21 and a plurality of sound-absorbing yarns 22 installed vertically inside the soundproofing case 21 and having heat resistance and durability are arranged to be spaced apart from each other at regular intervals in the front and rear, left and right, and the inlet 21a and the outlet It includes a sound-absorbing yarn module 23 that is installed to be located in the inner space between (21b).

That is, the first noise prevention means 20 is a sound-absorbing yarn module 23 composed of a plurality of sound-absorbing yarns 22 on a passage through which the fluid discharged from the exhaust duct 6 of the container housing 10 and the noise passes. When the noise moves through between the sound-absorbing yarns 22 by installing it, it collides with the sound-absorbing yarns 22 and is absorbed on the surface or consumed as energy to vibrate a plurality of sound-absorbing yarns 22 to extinguish the noise.

To this end, the soundproofing case 21 forms an internal space of a certain size, and the wall is made of metal or synthetic resin, and the sound-absorbing material is filled therein. The size of the soundproofing case 21 may be designed to be proportional to the amount of fluid passing through the intake duct 4 or the exhaust duct 6 . An inlet 21a connected to the intake duct 4 or exhaust duct 6 is formed on one side of the soundproof case 21 , and an outlet 21b connected to the outside air is formed on the other side thereof.

The sound-absorbing yarn module 23 is made of a plurality of sound-absorbing yarns 22 having porosity, heat resistance and durability. A plurality of sound-absorbing yarns 22 are installed to be spaced apart from each other by a predetermined interval in the front and rear, left and right, so that a predetermined interval is formed between the sound-absorbing yarns 22 . The sound-absorbing yarn module 23 may be installed in a form hanging from the upper end of the soundproofing case 21 , and has a hexahedral shape as a whole, and has a size that can fill 70 to 80% of the soundproofing case 21 internal space. can

The sound-absorbing yarn 22 may be made of fibers having a certain length of porosity, heat resistance and durability. The sound-absorbing yarn 22 may be made of any one selected from carbon fiber, black fiber, vinyl chloride fiber, glass fiber, carbon fiber, or the like, or a mixture thereof. In addition, the sound-absorbing yarn 22 may be formed by twisting fibers of different properties, such as carbon fibers, black fibers, vinyl chloride fibers, glass fibers, carbon fibers, and the like.

An upper fixing plate 23a is installed at the upper end of the sound-absorbing yarn module 23 and a lower fixing plate 23b is installed at the lower end thereof. The upper fixing plate 23a is to fix the top of the plurality of sound-absorbing yarns 22 and bundle them together, and the plurality of sound-absorbing yarns 22 are fixed in a state in which they are arranged to be spaced apart at regular intervals. For example, the upper fixing plate (23a) may be made of a synthetic resin plate hardened together with the top of the plurality of sound-absorbing yarn (22). The upper fixing plate 23a has a size and a structure that can be fixed to the upper end of the soundproof case 21 . And a plurality of through-holes 24 may be formed in the upper fixing plate 23a. The through-holes 24 are formed at regular intervals so as to vertically penetrate the upper fixing plate 23a.

Preferably, a space of a certain size may be formed between the upper fixed plate 23a horizontally fixed to the upper end of the soundproof case 21 and the upper surface of the soundproof case 21 . And on the upper surface of the soundproofing case 21, an inlet 21c for supplying washing water to this space is installed. Therefore, when the washing water (or rainwater) is supplied through the inlet 21c, the washing water flows downward through the through hole 25 formed in the upper fixing plate 23a. At this time, if the through-hole 24 is formed to correspond to the sound-absorbing yarn 22 and correspondingly, the washing water flows down along the sound-absorbing yarn 22 to wash the contaminants attached to the surface of the sound-absorbing yarn 22 . .

Next, the lower fixing plate 23b provided at the lower end of the sound-absorbing yarn module 23 is for fixing the lower ends of the plurality of sound-absorbing yarns 22 and binding them together, and the plurality of sound-absorbing yarns 22 are arranged to be spaced apart at regular intervals. fixed in state For example, the lower fixing plate 23b may be formed of a synthetic resin plate that is hardened together with a plurality of sound-absorbing yarns 22 . The lower fixing plate 23b is installed to be spaced apart from the inner surface and the bottom surface of the soundproof case 21 by a predetermined distance. Therefore, it becomes a structure hanging from the lower end of the lower resistance plate (23b) and a plurality of sound-absorbing yarn (22).

And a weight 27 is installed on the lower fixing plate 23b. The weight 27 adds weight to the sound-absorbing yarn 22 so that each sound-absorbing yarn 22 maintains a straight state. The weight body 24 is made of a material that is highly corrosive and heavy, such as metal or stone. When a certain external force is applied to the plurality of sound-absorbing yarns 22 , the weight body 24 may have a weight sufficient to maintain a straight state of each sound-absorbing yarn 22 .

Next, a vibration suppressing means 25 is further provided at the lower portion of the sound-absorbing yarn module 23 . Vibration suppression means 25, the sound-absorbing yarn 22 by the flow of the fluid discharged from the exhaust duct 6 is severely vibrated and twisted or the lower end of the sound-absorbing yarn module 23 collides with the soundproof case 21 to make noise A storage of a certain size formed at the lower end of the weight body 27 installed on the lower fixed plate 23b, the resistance plate 28 installed on the lower surface of the lower fixed plate 23b and the soundproof case 21 to prevent the occurrence of and a water tank 26 . That is, the vibration suppressing means 25 suppresses the vibration of the sound-absorbing yarn 22 within a certain range to smoothly perform sound-absorbing and soundproofing functions.

The storage tank 26 is formed in a certain size at the lower end of the soundproofing case 21 so that the lower end of the sound-absorbing yarn module 23 can be completely submerged. For example, more than 10% of the sound-absorbing yarn module 23 can be immersed. To this end, the storage tank 26 always maintains a constant water level. Therefore, the storage tank 26 is provided with a discharge port 21d for discharging the washing water to the outside at a predetermined height from the floor. In addition, a supply pipe (not shown) for supplying washing water to the storage tank 26 is installed on one side. In this case, the washing water may be tap water or rain water, and may include antifreeze or disinfectant solution.

One or more resistance plates 28 are installed on the lower surface of the lower fixing plate 23b. The resistance plate 28 is immersed in the water of the storage tank 26 to generate resistance when the resistance plate 28 moves in the horizontal direction. That is, when an external force acts on the plurality of sound-absorbing yarns 22 connected to the lower resistance plate 28, and the resistance plate 28 tries to move in the horizontal direction in the water, a predetermined resistance force is generated and the sound-absorbing yarn 22 or sound-absorbing yarn is generated. It prevents the yarn module 23 from vibrating excessively.

On the other hand, a plurality of sound-absorbing plates 29 may be further installed inside the exhaust duct 6 . The sound-absorbing plate 29 includes an inclined surface inclined at a certain angle with respect to the flow direction of the fluid, and is installed at regular intervals on the inlet 21a side of the soundproof case 21, By slowing down the speed and stabilizing the flow of the fluid, it is possible to prevent excessive impact from being applied to the sound-absorbing yarn module 23 .

In this way, the first noise preventing means 20 of the present invention, the noise passing through the intake duct 4 or the exhaust duct 6 is between a plurality of sound-absorbing yarns 22 constituting the sound-absorbing yarn module 23. When passing, noise generated from a noise source inside the container housing 10 by repeatedly colliding with a plurality of sound-absorbing yarns 22 and being absorbed by the surface of the sound-absorbing yarns 22 or consumed as energy to vibrate the sound-absorbing yarns 22 This is to prevent it from being transmitted to the outside.

In addition, in the first noise prevention means 20 of the present invention, pollutants contained in the exhaust gas are discharged into the atmosphere by washing the pollutants attached to the surface of the sound-absorbing yarn 22 using the washing water discharged periodically. to prevent it from happening.

In addition, the first noise preventing means 20 of the present invention is provided with a vibration suppressing means 25 for suppressing excessive vibration of the sound-absorbing yarn 22 and the sound-absorbing yarn module 23, so that the weight body 27 and When vibration occurs due to external force acting on a plurality of sound-absorbing yarns 22 or sound-absorbing yarn modules 23 connected to the resistance plate 28, gravity and resistance are generated to form the sound-absorbing yarn 22 and the sound-absorbing yarn module 23. By blocking the vibration within a certain range, it is to prevent collision with the inner wall of the soundproofing case 21 or the sound-absorbing yarns 22 from being tangled with each other.

Next, the second noise preventing means 30 is installed inside the wall 11 of the container housing 10, and the noise generated from the noise source (power generation facility) inside the container housing 10 is the container housing 10 . It is a part that filters so that it is not emitted to the outside.

4 is a partially enlarged cross-sectional view of part 'A' showing a second noise prevention means inside a wall of a container type plant equipped with a noise prevention means according to an embodiment of the present invention. Referring to FIG. 4, the second The noise prevention means 30 is a component constituting the wall 11 of the container housing 10 and is installed inside the wall 11, largely, the first perforated plate 31, the sound absorbing material 32 and the second perforated plate. (33) may be included.

The first perforated plate 31 is configured to have a flat plate-like structure in which a plurality of holes are perforated at predetermined intervals. For example, as a configuration in which holes are perforated at predetermined intervals in a plate made of any one of metal, plastic, or wood, the diameter and spacing of the perforated holes are not specified, and the standard may be selectively applied as needed. have.

The sound absorbing material 32 is a portion for absorbing noise generated from the power generation facility 2 inside the container housing 10 and emitted toward the outside of the container housing 10 through the first perforated plate 31 . It may be installed so that the perforated plate 31 and one side are in close contact. The sound absorbing material 32 may be made of any one of glass wool, rock, fabric, polyurethane, polyester, and non-woven fabric.

The second perforated plate 33 is configured to have a flat plate-like structure in which a plurality of holes are perforated at positions shifted from the perforated holes of the first perforated plate 31 . It is formed of the same or similar material as that of the first perforated plate 31 , and the position of the perforated hole may be formed differently from that of the first perforated plate 31 . That is, assuming that the first perforated plate 31 and the second perforated plate 33 are superimposed on each other, the holes punched in the first perforated plate 31 and the second perforated plate 33 do not match each other and are formed in a misaligned shape. can This second perforated plate 33 may be installed so that the sound absorbing material 32 and one side are in close contact.

In this way, the second noise prevention means 30 is installed in close contact with the first perforated plate 31 , the sound absorbing material 32 , and the second perforated plate 33 from the inside of the container housing 10 , or the second perforated plate 33 . ), the sound absorbing material 32, and the first perforated plate 31 may be installed so as to be embedded in the wall 11 in a state of being in close contact with each other in this order. Accordingly, the second noise prevention means 30 may be formed to meet the standard of the wall 11 of the container housing 10 formed in a prefabricated structure.

Next, Figure 5 is an enlarged cross-sectional view of another embodiment of part 'A' showing the second noise prevention means inside the wall of a container-type plant equipped with a noise prevention means according to an embodiment of the present invention, see Figure 5 On the other hand, the second noise preventing means 30 is configured to be in close contact with each other in the order of the first perforated plate 31, the sound absorbing material 32, and the second perforated plate 33, but the outside of the first perforated plate 31 and the second perforated plate (33) The sound absorbing material 32 may be further provided on each of the outer sides.

That is, the second noise prevention means 30 according to another embodiment of the present invention is provided with a sound absorbing material 32 between the first perforated plate 31 or the second perforated plate 33, or the first perforated plate 31 or the second It is configured to include one side of the perforated plate 33 and the sound absorbing material 32 , so that the first perforated plate 31 , the second perforated plate 33 and the sound absorbing material 32 are overlapped in a plurality of layers. At this time, the material of the sound absorbing material 32 composed of a plurality may be composed of different materials.

Meanwhile, referring to FIG. 4 , if you look at the flow of noise while the noise generated inside the container housing 10 is transmitted to the outside of the wall 11 through the second noise preventing means 30 , first, the container housing (10) The noise generated from the internal noise source is primarily partially blocked by the first perforated plate 31 and the rest passes through the perforated hole of the first perforated plate 31 .

Next, while the noise passing through the perforated hole of the first perforated plate 31 is canceled in the process of passing the sound absorbing material 32, the noise and sound absorbing material that first passed through the perforated hole of the first perforated plate 31 ( 32), the noise after passing can be canceled and reduced.

Then, the noise passing through the sound absorbing material 32 is partially blocked and blocked by the second perforated plate 33, and the rest is passed through the hole perforated in the second perforated plate 33. At this time, the first perforated plate ( 31), since the hole is perforated at a position different from that of the perforated hole, the noise passing through the perforated hole of the first perforated plate 31 passes through the sound absorbing material 32 and is canceled by the second perforated plate 33 and It is configured to be able to escape through the hole of the second perforated plate 33 at a different location from the perforated hole of the first perforated plate 31, so that the effect of canceling the noise in the process of changing the flow of noise once again can be obtained. there will be That is, it is possible to reduce the intensity of the noise by blocking the path through which the noise travels.

Next, the third noise preventing means 50 collects noise signals around the container housing 10 generated from the noise source inside the container housing 10 and emitted to the outside of the container housing 10, and the collected noise signals It is a part to cancel the noise by outputting an out-of-phase noise signal based on .

Specifically, as shown in FIG. 2 , the third noise preventing means 50 is installed in a plurality of directions outside the container housing 10 , that is, before the container housing 10 , After that, it can be installed on the left and right side walls, and a plurality of microphones 51 for collecting noise signals around the container housing 10 emitted to the outside of the container housing 10, through the microphones 51 The noise processing unit 52 that generates an anti-phase noise signal by analyzing the collected noise signal and the anti-phase noise signal generated by the noise processing unit 52 are installed at multiple locations outside the container housing 10 in multiple directions. It may include a plurality of speakers 53 for outputting.

When noise generated from a noise source (power generation facility) in the container housing 10 is emitted to the outside through the container housing 10 , the microphone 51 picks up noise existing around the container housing 10 . can play a role. The microphone 51 may be configured as a conventionally known microphone, and a detailed description thereof will be omitted.

The noise processing unit 52 analyzes the noise signal collected through the microphone 51 and then generates a signal of the opposite phase to the collected noise signal to cancel the noise.

The speaker 53 may output an out-of-phase noise signal so that the out-of-phase noise signal generated through the noise processing unit 52 can be transmitted to an area in which a worker around the container housing 10 passes or works.

As such, the third noise preventing means 50 first measures the noise signal transmitted to the vicinity of the container housing 10 through the microphone 51 , and then the measured noise signal is transmitted to the noise processing unit 52 . After analysis, an anti-phase noise signal is generated, and the generated anti-phase noise signal is transmitted to and outputted to the speaker 23, so that noise generated around the container housing 10 can be canceled. .

6 is a block diagram illustrating an operation concept of a third noise prevention means of a container type plant equipped with a noise prevention means according to an embodiment of the present invention.

Referring to FIG. 6 , the third noise preventing means 50 is installed to form a plurality of sets on the outside of the container housing 10 , and one set corresponds to a range of regions in the same direction. It means that it is installed on one side of the outer surface of the housing 10 in one direction. That is, one set of the third noise preventing means 50 is a group installed on one side of the container housing 10 .

The third noise prevention means 50 collects and analyzes noise signals collected from the plurality of microphones 51 installed in the same direction among the external positions of the container housing 10, and then analyzes the analyzed anti-phase noise signals. It may be configured to output only through a speaker 53 installed in the same direction as the microphone 51 .

For example, as shown in FIG. 2 , the noise signal collected by the microphone 51 installed in region A of the periphery of the container housing 10 is individually transmitted to the noise processing unit 52 , and the noise processing unit 52 ), after separately analyzing only the noise signal collected from the microphone 51 in the region A, it can be programmed to transmit the out-of-phase noise signal to the speaker 53 in the region A. That is, the noise signal collected from area A to area D is analyzed separately and the out-of-phase noise signal is outputted only to the speaker in the area to prevent an accurate anti-phase signal from being generated by colliding with noise from different areas. to be. At this time, the noise processing unit 52 is a control unit in the form of a control unit, and the microphone 51 and the speaker 53 are interlocked and controlled, or the microphone 51 and the speaker 53 are one group. may be installed.

The container-type plant 1 according to an embodiment according to the technical idea of the present invention is located at the inlet 4a or outlet 6a of the intake duct 4 and the exhaust duct 6 of the container housing 10 . The installed first noise prevention means 20 prevents noise generated inside from being transmitted to the outside through the intake duct 4 or the exhaust duct 6, and the wall 11 of the container housing 10 A second noise prevention means 30 is provided inside the container housing 10 for filtering so that it is not emitted to the outside to prevent the noise generated from the noise source in the container-type plant 1 from being emitted to the outside, and the container housing ( 10) Collecting noise signals collected around the container housing 10 through a plurality of third noise prevention means 50 installed on the outside, analyzing them, and outputting an anti-phase noise signal through the speaker 53, the container Workers working in the vicinity of the type plant (1) can perform work in a comfortable working environment while being blocked from noise from noise sources operating inside the container type plant (1), resulting in hearing loss due to noise during long-term work This has the effect of avoiding concerns in advance.

As described above, the best embodiment has been disclosed in the drawings and the specification. Although specific terms are used herein, they are used only for the purpose of describing the present invention and are not used to limit the meaning or limit the scope of the present invention described in the claims. Therefore, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

1: Container type plant 4: Intake duct
6: Exhaust duct 10: Container housing
11: wall 20: first noise prevention means
21: soundproof case 22: sound-absorbing yarn
23: sound-absorbing yarn module 23a: upper fixing plate
23b: lower fixing plate 24: through hole
25: vibration suppression means 26: storage tank
27: weight 28: resistance plate
30: second noise prevention means 31: first perforated plate
32: sound absorbing material 33: second perforated plate
50: third noise prevention means 51: microphone
52: noise processing unit 53: speaker

Claims (6)

In a container-type plant including an engine and a generator and equipped with a plurality of power generation facilities for converting engine output into electric power,
a container housing in which the power generation facility is installed in the inner space as one module in the form of a box having a space therein and forming an external shape;
a first noise preventing means installed to communicate with the intake duct or exhaust duct of the container housing, and for absorbing noise passing through the intake duct or exhaust duct and blocking it from being emitted to the outside of the container housing;
second noise preventing means installed inside the wall of the container housing and blocking noise generated from the noise source inside the container housing from being emitted to the outside of the container housing;
It is installed outside the container housing, collects a noise signal around the container housing that is generated from a noise source of the power generation facility and is emitted to the outside of the container housing, and outputs an anti-phase noise signal based on the collected noise signal to make noise. A third noise prevention means for offsetting the
The first noise prevention means,
a soundproofing case forming an internal space of a certain size and having an inlet connected to the intake duct or exhaust duct on one side and an outlet connected to the outside air on the other side;
Sound-absorbing yarn module installed in the interior of the soundproofing case and arranged so as to be spaced apart from the front, rear, left and right by a predetermined length of sound-absorbing yarn having heat resistance and durability, and located in the inner space between the inlet and the outlet of the soundproofing case; includes; Container-type plant equipped with noise prevention means, characterized in that.
According to claim 1,
The sound-absorbing yarn module is installed in a suspended form on the upper end of the soundproof case, and is a container-type plant with noise prevention means, characterized in that it is sized to fill 70 to 80% of the inner space of the soundproof case.
3. The method of claim 2,
At the upper end of the sound-absorbing yarn module, an upper fixing plate having a plurality of through-holes penetrating up and down is installed while fixing the upper ends of the plurality of sound-absorbing yarns by arranging them to be spaced apart at regular intervals, and at the lower end of the sound-absorbing yarn module, the plurality of A container-type plant equipped with noise prevention means, characterized in that the lower end of the sound-absorbing yarn of the sound-absorbing yarn is arranged and fixed at regular intervals and a lower fixing plate installed with a weight of a predetermined weight is installed.
4. The method of claim 3,
A storage tank of a certain size is installed at the lower end of the soundproofing case, the storage tank is filled with water at a predetermined water level so that the lower fixing plate is submerged, and the lower surface of the lower fixing plate is one or a plurality of generating resistance to movement. A container-type plant with noise prevention means, characterized in that a resistance plate is installed.
According to claim 1,
The second noise prevention means,
As a component constituting the wall of the container housing, it is installed inside the wall,
a first perforated plate having a flat plate-like structure in which a plurality of holes are perforated at predetermined intervals;
a sound absorbing material in close contact with the first perforated plate and one side, and for absorbing noise emitted toward the outside through the first perforated plate; and
A second perforated plate in close contact with the sound-absorbing material and one side, and having a flat plate-like structure in which a plurality of holes are perforated at positions displaced from the perforated holes of the first perforated plate;
The second noise prevention means,
The first perforated plate, the sound absorbing material, and the second perforated plate are configured to be in close contact with each other in that order, and the sound absorbing material is further provided on the outside of the first perforated plate and the outside of the second perforated plate. Container plant.
6. The method of claim 1 or 5,
The third noise prevention means,
a plurality of microphones installed in multiple directions at a plurality of positions outside the container housing and configured to collect noise signals around the container housing emitted to the outside of the container housing;
a noise processing unit that analyzes the noise signal collected through the microphone and generates an out-of-phase noise signal; and
and a plurality of speakers installed in a plurality of directions outside the container housing and outputting an out-of-phase noise signal generated by the noise processing unit.

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