JP7059493B2 - Ventilation equipment evaluation device - Google Patents

Description

The present invention relates to an evaluation device for ventilation equipment in a building.

In recent years, in buildings such as houses, high airtightness and quietness can be obtained by improving the heat insulating property. In such a building, by improving the airtightness, natural ventilation from the gap and air leakage due to wind power are suppressed, and the indoor environment is easily damaged by air pollution and retention of water vapor generated in the room. There is. For this reason, in a building, it is necessary to install an air supply port or the like for ventilation on the outer wall to discharge dirty air in the room or air containing water vapor generated in the room.

Here, if an air supply port or the like is installed on the outer wall of the building, not only the fresh outdoor air but also the outdoor noise enters from the air supply port, and the quietness inside the building is impaired. It ends up. For this reason, it is desired to suppress noise entering from the air supply port.

For example, Patent Document 1 describes an air supply port that can ensure sound insulation performance. The air supply port of Patent Document 1 is provided with an air supply port base member having an open duct on the side wall surface of the room, and a bottom surface member is attached to the air supply port base member via an in / out member. By moving the bottom member in and out, the inflow amount of outside air and the like is adjusted. Further, a sound absorbing material is arranged on the duct opening side surface of the bottom member of the air supply port of Patent Document 1, and the air supply port is provided with sound insulation so as to block the inflow of noise by the sound absorbing material. ing.

Japanese Unexamined Patent Publication No. 2007-225149

By the way, by providing the air supply port with a sound insulation function, it is possible to suppress the noise level (noise level) that enters the building from the air supply port. However, since the air supply port has a sound insulation function, the product cost increases. For this reason, using an air supply port that has a uniform sound insulation function not only causes an excessive function, but also may lead to an increase in the equipment cost of the building.

The present invention has been made in view of the above facts, and provides an evaluation device for ventilation equipment capable of suppressing the noise level and equipment cost invading the living room by evaluating the installation position of the air supply port. The purpose.

In order to achieve the above object, the ventilation equipment evaluation device of the first aspect of the present invention includes building information including information that can specify the position of a living room in the building, and an air supply port provided on the outer wall of the building in the ventilation equipment. Equipment information including information that can specify the installation position of the building, site information that includes information that can specify the distance from the site boundary line of the outer wall of the building on the site where the building is located, and adjacent land around the site. The reception unit that receives environmental information including information that can identify the noise level and noise source emitted from the adjacent land, the distance of the air supply port from the site boundary line, and the adjacent land in contact with the site boundary line. Based on the environmental information, the evaluation unit that evaluates the installation position of the air supply port and the evaluation unit that evaluates the installation position of the air supply port based on whether or not the noise level in the living room where the air supply port is installed is equal to or lower than the preset reference value. It is provided with a notification unit for notifying the evaluation result of the evaluation unit.

In the evaluation device for the ventilation equipment of the first aspect, the reception unit can specify the building information including the information that can specify the position of the living room in the building, and the installation position of the air supply port provided on the outer wall of the building in the ventilation equipment. Equipment information including information, site information including information that can identify the distance from the site boundary of the outer wall of the building on the site where the building is located, and noise level and noise emitted from the adjacent land around the site. Accepts environmental information including information that can identify the sound source.

Here, the noise to the building has a sound source in the adjacent land adjacent to the boundary line of the site. In addition, the noise level decreases as the distance from the noise source increases. From here, the evaluation department uses the distance from the site boundary line of the air supply port obtained from the building information, site information and equipment information and the noise level emitted from the adjacent land obtained from the environmental information, and the installation position of the air supply port. However, the installation position of the air supply port is evaluated by determining whether or not the noise level in the building (living room) is equal to or lower than the preset reference value.

As a result, it is possible to suppress the provision of sound insulation function to the air supply port at the installation position where the noise level in the living room is below the standard value, and the equipment cost of the ventilation equipment by providing the sound insulation function to the air supply port. It is possible to suppress the rise.

In addition, it is possible to specify the air supply port where the noise level in the living room exceeds the standard value, change the installation position, and add a sound insulation function, so the noise level in the living room exceeds the standard value. Can be properly suppressed.

The evaluation device for the ventilation equipment of the second aspect is the evaluation device for the ventilation equipment of the first aspect. From the building information and the air volume set for each air supply port, the number of the air supply ports in the living room and the total number of the air supply ports in the building are calculated, and the said in the equipment information based on the calculation result. Evaluate the number of air inlets.

In the evaluation device for the ventilation equipment of the second aspect, the building information includes the air volume of the building, which is the volume of the building, and the air volume of the living room, which is the volume of the living room. The evaluation unit calculates the total number of air supply ports installed in the building and the number of air supply ports installed in the living room from the air volume of the building, the air volume of the living room, and the air volume per air supply port. .. In addition, the evaluation department determines whether the total number of air supply ports included in the equipment information and the number of air supply ports in the living room have reached the calculated total number of air supply ports in the building and the number of air supply ports in the living room. Evaluate.

This makes it possible to evaluate whether or not the number of air supply ports in the ventilation equipment has reached the number at which an appropriate air supply function can be obtained for the building and the living room, and an appropriate number of air supply ports can be provided for the living room and the building. Can be installed.

As described above, according to the aspect of the present invention, since the installation position of the air supply port is evaluated from the viewpoint of the noise level entering from the air supply port, it is possible to suppress the air supply port from becoming excessively functional, and the equipment can be used. It has the effect of suppressing the increase in cost.

It is a functional block diagram of the evaluation apparatus which concerns on this embodiment. It is a block diagram which shows the schematic structure of the evaluation apparatus. It is a layout drawing which shows an example of a site. (A) and (B) are plan views showing the floor plan of the building according to this embodiment, (A) shows the floor plan of the first floor, and (B) shows the floor plan of the second floor. It is a flow chart which shows the outline of the evaluation process. It is a layout plan which shows the site which reflected the noise level. It is a chart which shows an example of the recommended noise level as a reference value set for each living room. (A) and (B) are plan views showing the floor plan of the building where the installation position of the air supply port is changed based on the evaluation, (A) shows the floor plan of the first floor, and (B) is the second floor. Shows the floor plan.

Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a functional block diagram of the evaluation device 10 of the ventilation equipment according to the present embodiment, and FIG. 2 shows a schematic configuration of the evaluation device 10 in a block diagram.

The evaluation device 10 according to the present embodiment targets ventilation equipment designed for new construction or remodeling (including remodeling) of a building such as a house. The evaluation device 10 makes it possible to reduce the equipment cost for indoor noise suppression and noise suppression by evaluating the installation position of the air supply port from the viewpoint of noise suppression for the ventilation equipment to be evaluated. Further, the evaluation device 10 makes it possible to provide a ventilation facility capable of obtaining an appropriate ventilation function for the building by evaluating the number of air supply ports installed in the building. Further, the evaluation device 10 supports the design of the ventilation equipment for the building in which noise suppression and equipment cost reduction are achieved.

As shown in FIG. 2, the evaluation device 10 includes a processing device 12, and a personal computer (PC) main body is used for the processing device 12. In the processing device 12, the CPU 12A, ROM 12B, RAM 12C used as a work memory, HDD 14 as a data rewritable non-volatile storage device, interface 12D for data input / output, and the like are an address bus, a data bus, and a control bus. Etc. are connected to each other via the bus 12E.

A notification unit, a monitor 16 as a display device, a keyboard 18A as an input device, a mouse 18B, and the like are connected to the interface 12D of the processing device 12. Further, in the evaluation device 10, a sound level meter 20 may be used as a measuring means for measuring noise, and the sound level meter 20 is connected to the interface 12D of the processing device 12.

Further, the interface 12D includes a USB interface and a network interface (both are not shown), and the processing device 12 is various via a USB memory (not shown) and a communication network such as the Internet, LAN, and VAN. Data input / output (transmission / reception) is possible. A disk drive may be connected to the interface 12D of the processing device 12, and data may be input / output from a portable storage medium such as a data disk mounted on the disk drive. Further, a printer or the like as an output device may be connected to the interface 12D of the processing device 12.

The processing device 12 operates by the CPU 12A reading and executing the OS (operating system) stored in the ROM 12B, and executes the program or the like stored in the HDD 14. The HDD 14 stores an evaluation program for the ventilation equipment, and the processing device 12 realizes the evaluation function for the ventilation equipment by reading and executing the evaluation program for the ventilation equipment by the CPU 12A.

As shown in FIG. 1, the evaluation device 10 has an information acquisition unit 22 as a reception unit, an evaluation unit 24, an output unit 26 as a notification unit, and a change reception unit when an evaluation program is executed in the processing device 12. Functions as 28.

Building information 30, equipment information 32, site information 34, and environmental information 36 are used in the evaluation device 10. Further, the design information 38 and the reference information 44 are used for the evaluation device 10.

The information acquisition unit 22 inputs the building information 30, the equipment information 32, the site information 34, and the environment information 36 into the processing device 12, so that the input building information 30, the equipment information 32, the site information 34, and the environment are input. Read (acquire) information 36. Further, the information acquisition unit 22 reads the input design information 38 by inputting the design information 38 to the processing device 12.

The building information 30, equipment information 32, site information 34, environment information 36, and design information 38 may be input to the processing device 12 via a network line, and may be a portable storage medium such as a USB memory or a memory disk. It may be input to the processing device 12 via. Further, the design information 38 may be input by operating the keyboard 18A, the mouse 18B, or the like according to a predetermined user interface (for inputting the design information 38) displayed on the monitor 16.

The building information 30 includes at least information that can specify the size (floor area, ceiling height, etc.) and floor plan (particularly the position of the living room) of the building, and the building information 30 is provided with ventilation equipment. For buildings, it contains information that can calculate the air volume (volume) required for designing ventilation equipment. The building information 30 includes the floor plan of each floor, the floor area of each floor (may include the total floor area), the floor area of each room, the ceiling height of each room, and the like, and the building information 30 includes about each room. It is preferable to include information indicating the use.

Three-dimensional CAD data or the like created by a three-dimensional CAD (Computer-aided design) system is applied to such building information 30. Further, when the three-dimensional CAD program is stored in the HDD 14 of the processing device 12 and the evaluation device 10 functions as the three-dimensional CAD system, the building information 30 may be created by the evaluation device 10.

On the other hand, in the present embodiment, the ventilation equipment of the third kind ventilation is applied. The ventilation equipment of the third type ventilation includes the air supply port installed on the wall on the outdoor side of the living room of the building, the exhaust port installed in the room other than the living room, and the constant ventilation (24-hour ventilation) installed in the exhaust port. ) Is used as a ventilation fan as a forced exhaust means.

The equipment information 32 includes at least information that can specify the installation position of the air supply port or the like in the ventilation equipment designed for the building. Further, the equipment information 32 may include an installation position of an exhaust port (exhaust fan) constituting the ventilation equipment, and a fitting provided with a grill, an undercut, or the like forming a ventilation path of the ventilation equipment in the building. Information indicating the installation position of the may be included.

Such equipment information 32 may be included in the three-dimensional CAD data of the building and may be added to and input to the building information 30. Further, the equipment information 32 displays the floor plan of each floor based on the building information 30 in the processing device 12 on the monitor 16, and the installation position of the air supply port is designated on the floor plan of each floor by operating the keyboard 18A and the mouse 18B. It may be created by.

Further, in the ventilation equipment according to the present embodiment, the air volume (volume in the building or living room (m ³ )) assigned to one air supply port is set, and the design information 38 includes one. Contains the volume assigned to the air inlet.

Further, the design information 38 includes design conditions for defining the installation position of the air supply port when designing the ventilation equipment. The design information 38 may include design conditions regarding the number of air supply ports and the installation position for forming a ventilation path in the living room.

As the design condition (installation condition) of the air supply port in the design information 38, general conditions regarding the installation position of the air supply port and the like can be applied. For example, a walk-in closet (hereinafter referred to as WIC) as a small room (storage room) for storing clothes may be continuously provided in a building. In this case, one room including WIC is provided. Is included in the design conditions. Further, the air supply port may be installed on the wall (outer wall) in the WIC, but the design condition includes not installing two or more air supply ports in the WIC. Furthermore, as a design condition, no air supply ports are provided above and below the window frame, and when an air supply port is installed at any corner of the living room, two air supply ports are not installed across one corner. This includes not installing an air supply port in the immediate vicinity of the pillar, installing an air supply port so that a shortcut does not occur in the ventilation path between multiple air supply ports, and so on.

The site information 34 includes information (information indicating the location of the building) that makes it possible to specify the surrounding site boundary line, the distance between the site boundary line and the building, and the like for the site on which the building is built. As the site information 34, information obtained by digitizing a site in which a building is constructed (or built) divided by a site boundary line and a layout map capable of specifying the position of the building in the site can be applied.

Information on the noise level for each of the adjacent lands adjacent to the site boundary is applied to the environmental information 36. For example, to the environmental information 36 (information on the noise level), information that can predict (estimate) the noise level or the noise level emitted from each of the adjacent lands is applied. Further, the environmental information 36 may be divided into a plurality of time zones, and may include information on the noise level for each divided time zone.

Here, a road, a park, a residential land, or the like is assumed as the adjacent land, and the noise level differs depending on the usage status of the adjacent land. For example, if the adjacent land is a residential land, the noise level will differ depending on whether or not there is a building (whether or not it is a vacant lot), and if there is a building, the noise level will differ depending on the time of day, and the boundary between the building and the site will be different. It also depends on the distance. When the adjacent land is a park, the noise level differs depending on the time zone, and the noise level also differs depending on the distance between the place where people gather in the park and the boundary line of the site.

When the adjacent land is a road, the noise level depends on whether it is a road mainly for vehicles or a sidewalk or a living road mainly for people (pedestrians). Further, in the case of a road mainly through which vehicles pass, the noise level differs depending on whether it is an arterial road, traffic volume, the presence or absence of sidewalks, the road width, etc., and the noise level may differ depending on the time zone. Further, when the road is a living road mainly for pedestrians, the noise level differs depending on the traffic volume, and the traffic volume changes depending on the time zone, so that the noise level differs depending on the time zone. Therefore, it is more preferable that the environmental information 36 is set in consideration of the usage status of the adjacent land.

On the other hand, a reference value (upper limit value) of the noise level as a recommended noise level is set in advance in the living room of the building, and is stored in the HDD 14 as the reference information 44 in the evaluation device 10. In addition to the normal air supply port that does not have a sound insulation function, the air supply port used for the ventilation equipment includes a sound insulation air supply port that is provided with a sound insulation member and has a sound insulation function. The noise attenuation level differs between the sound insulation air supply port and the sound insulation air supply port. The reference information 44 includes information on the amount of noise level attenuation for the normal air supply port and the sound insulating air supply port. The reference information 44 may be read from a portable storage medium and stored in the HDD 14, or may be acquired by the information acquisition unit 22 via a network or the like and stored in the HDD 14.

The evaluation unit 24 includes a sub-evaluation unit 40 for evaluating the number of air supply ports and a main evaluation unit 42 for evaluating the installation position of the air supply ports. The sub-evaluation unit 40 calculates the number of air supply ports provided in each of the living rooms and the number (total number) of air supply ports for the entire building based on the building information 30 and the design information 38. The sub-evaluation unit 40 evaluates whether or not the number of air supply ports in each living room included in the equipment information 32 has reached the number of air supply ports calculated for each living room. Further, the sub-evaluation unit 40 evaluates the number of air supply ports of the ventilation equipment from whether or not the number (total number) of air supply ports included in the equipment information 32 has reached the calculated total number of air supply ports. ..

The main evaluation unit 42 evaluates the installation positions of the air supply ports provided in the living room based on the building information 30, the equipment information 32, the site information 34, the environmental information 36, and the standard information 44. The evaluation of the installation position of the air supply port in the main evaluation unit 42 is performed based on whether or not the noise level in the living room is equal to or less than the reference value included in the reference information 44.

The output unit 26 notifies the evaluation results of the sub-evaluation unit 40 and the main evaluation unit 42 by displaying the evaluation results of the sub-evaluation unit 40 and the main evaluation unit 42 on the monitor 16. Further, the output unit 26 may write the evaluation result on a portable recording medium and output it, or may output the evaluation result via a communication line.

The change receiving unit 28 accepts the design change of the ventilation equipment when it is determined that the design change of the ventilation equipment is necessary based on the evaluation result. The change reception unit 28 displays, for example, the floor plan of each floor based on the building information 30 and the installation position of the air supply port based on the equipment information 32 before the change on the monitor 16, and supplies the air by operating the keyboard 18A or the mouse 18B. By specifying the change of the installation position of the air port, the specified installation position is accepted as the changed installation position of the air supply port. Further, the change reception unit 28 updates the equipment information 32 based on the change in the installation position of the received air supply port. As a result, the evaluation unit 24 (main evaluation unit 42) can evaluate (re-evaluate) the installation position of the air supply port based on the updated equipment information 32.

Hereinafter, the evaluation process of the evaluation device 10 for the ventilation equipment installed in the newly constructed building 50 as the operation of the present embodiment will be described. In FIG. 3, the building 50 and the site 52 are shown in a layout plan. Further, FIG. 4A shows the floor plan of the first floor of the building 50 in a plan view, and FIG. 4B shows the floor plan of the second floor of the building 50 in a plan view. Further, FIG. 5 shows an outline of the evaluation process for the ventilation equipment designed for the building 50 in a flow chart.

The building 50 is a unit-type building (unit house) in which a frame of a steel-framed rigid frame structure is formed by vertically and horizontally arranging a plurality of building units, each of which is framed by a steel frame. It is said to be a two-story building. In the building 50, the skeleton is not limited to the steel frame structure, but may be a steel frame structure, or the skeleton may be a structure other than the steel frame structure and the steel frame structure. Further, the building 50 may be a one-story building or may have three or more floors.

As shown in FIG. 3, the site 52 is partitioned by the site boundary line 54. A road 56 is in contact with the site boundary line 54A on the east side of the site 52, and the road 56 is a one-lane road with a width of 6 m. A road 58 is in contact with the site boundary line 54B on the west side of the site 52, and the road 58 is mainly a living road (sidewalk) through which people pass.

An open space 60 is in contact with the site boundary line 54C on the north side of the site 52. Further, a residential land 62 is in contact with the site boundary line 54D on the south side of the site 52, and a building (neighboring house) 64 is built on the residential land 62.

As shown in FIGS. 4 (A) and 4 (B), the building 50 has an outer wall 66 (east side outer wall 66A, west side outer wall 66B, north side outer wall 66C, and south side outer wall 66D) around the first floor. Surrounded. Further, the building 50 is surrounded by an outer wall 66 (outer wall 66A on the east side, outer wall 66B on the west side, and outer wall 66C on the north side) extending from the first floor around the second floor, and the outer wall 66E (66) on the south side. The balcony 68 is installed on the south side of the 2nd floor (outside of the outer wall 66E). The building 50 has the same ceiling heights on the first and second floors. The outer wall 66 of the building 50 has sound insulation, and the indoor noise of the building 50 is suppressed by the outer wall 66.

As shown in FIG. 4A, on the first floor of the building 50, there are a kitchen (kitchen) 70A, a bathroom 70B, a washroom 70C, a toilet 70D, a staircase (stairs) 70E extending to the second floor, a hall 70F, and an entrance hall. 70G and LD (living dining) 72 as a living room are provided. The LD72 is arranged in the southwestern part of the building 50 and projects to the south side of the entrance 70H, and is separated from the outside by the outer walls 66B and 66D and the outer wall 66F on the entrance 70H side. Further, the hall 70F is in contact with the kitchen 70A, the washroom 70C, the toilet 70D and LD72, and is in contact with the staircase 70E and the entrance hall 70G.

As shown in FIG. 4B, on the second floor of the building 50, a storage room 74A, a toilet 74B and a hall 74C are provided, and a master bedroom 76 as a living room is installed on the south side and the west side, and the outer wall 66A, It is separated from the outdoors by 66D. Further, on the second floor of the building 50, a Western-style room 78 as a living room is installed on the south side and the west side, and the Western-style room 78 is divided into a Western-style room 78A on the east side and a Western-style room 78B on the west side by a partition wall. The Western-style room 78A is separated from the outside by the outer wall 66E, and the Western-style room 78B is separated from the outside by the outer walls 66B and 66E. Further, on the second floor of the building 50, the hall 74C is in contact with the staircase 70E, and is in contact with each of the storage room 74A, the toilet 74B, the master bedroom 76, the Western-style room 78A, and the Western-style room 78B.

As shown in FIGS. 4A and 4B, in the ventilation equipment designed for the building 50, the bathroom 70B on the first floor, the toilet 70D on the first floor, the storage room 74A on the second floor, and the toilet on the second floor. An exhaust port 80 is installed in each of the 74Bs. Each of the exhaust ports 80 is arranged so as to penetrate the outer wall 66 (66C) of the building 50, and the outdoor hood 82 is attached to the wall surface on the outdoor side. An exhaust fan (not shown) for constant ventilation is attached to each of the exhaust ports 80. The kitchen 70A is provided with an exhaust port for ventilation and a ventilation fan (both not shown) at any time.

In the ventilation equipment, two air supply ports 84 (84A, 84B) are provided in the LD72 on the first floor, and one air supply port 84 (one in each of the master bedroom 76 and the Western-style rooms 78A, 78B) on the second floor. 84C, 84D, 84E) are provided. Each of the air supply ports 84 (84A to 84E) is usually an air supply port, and each of the air supply ports 84 is provided with an outdoor hood 82 on the wall surface on the outdoor side and a grill on the indoor side (not shown). Omitted) etc. are provided.

The air supply port 84A of the LD72 is attached to the kitchen 70A side (north side side) on the outer wall 66B, and the air supply port 84B is attached to the west side side (outer wall side 66B side) on the outer wall 66D. The air supply port 84C of the master bedroom 76 is attached closer to the Western-style room 78A on the outer wall 66D extending from the first floor to the second floor. Further, the air supply port 84D of the Western-style room 78A is attached to the outer wall 66E on the balcony 68 side closer to the master bedroom 76 side, and the air supply port 84E of the Western-style room 78B is attached to the outer wall 66B closer to the storage room 74A (near the north side). Be done.

Here, in the flowchart of FIG. 5, in the first step 100, the building information 30 about the building 50, the equipment information 32 about the ventilation equipment, and the site information 34 of the site 52 where the building 50 is newly constructed are received. Further, in step 100, environmental information 36 for predicting the ambient noise level of the building 50 and design information 38 of the ventilation equipment are received.

The building information 30 includes a floor plan of the first and second floors (see FIGS. 4A and 4B), a floor area Sa of the first floor of the building 50, and a floor area Sb of the second floor (total floor area Ss). ), Floor areas S1 to S4 of each living room, ceiling height h, and information on usage for each living room are included.

The equipment information 32 includes information for specifying the installation position of the air supply port 84 in the LD72, the master bedroom 76, and the Western-style rooms 78A and 78B. Further, the equipment information 32 includes information for specifying the installation position of each of the exhaust ports 80. The site information 34 includes data that makes it possible to specify the distance of the building from each site boundary line 54 of the site 52 and the site 52. Further, the design information 38 includes design conditions and the like for the ventilation equipment.

The environmental information 36 includes data that can predict or specify the noise level in each of the roads 56 and 58, the open space 60 and the residential land 62. As the noise level, various statistics are disclosed according to the land usage situation, and these noise levels may be applied to the environmental information 36. When these statistics are used, the noise level in the environmental information 36 is, for example, 70 dB (A) for the road 56 (hereinafter, (A) is omitted), 60 dB for the road 58, 40 dB for the vacant lot 60, and 45 dB for the residential land 62. Etc. are entered.

The noise level in the environmental information 36 may be measured using a sound level meter 20. When actually measuring the noise level, the noise source of the roads 56, 58 and the open space 60 can be regarded as a linear sound source. From here, for roads 56, 58 and vacant lot 60, measurements were measured at one or more locations on the site boundary lines 54A, 54B, 54C or at positions separated from the site boundary lines 54A, 54B, 54C by a certain distance. The value applies.

Further, in the residential land 62 where the building 64 is built, the building 64 can be regarded as a sound source of noise. From here, for the residential land 62, the measured values measured at one or a plurality of positions in the site 52 separated from the building 64 by a certain distance are applied.

In the next step 102, the number of air supply ports 84 judged to be appropriate (there is no shortage in view of the design conditions of the ventilation equipment) in the building 50 is calculated based on the building information 30 and the design information 38. To calculate the number of air supply ports 84, the total floor area Ss of the building 50, the floor area S1 of the LD72, the floor area S2 of the master bedroom 76, the floor area S3 of the Western-style room 78A, and the floor of the Western-style room 78B included in the building information 30 are calculated. The area S4 and the ceiling height h are used. Further, in the calculation of the number of the air supply ports 84, the air volume (unit air volume) Qu (m ³ ) per air supply port 84 included in the design information 38 is used.

The number of air supply ports 84 is calculated from {(floor area S) × (ceiling height h)} / Qu = (ventilation target air volume Q) / (air volume Qu).

For example, the floor area Sa = 65.56m ² on the first floor of the building 50, the floor area Sb = 55.10m ² on the second floor, the floor area S1 = 21.81m ² on the LD72, and the floor area S2 = 13. 88m ² , floor area S3 of Western-style room 78A = 7.13m ² , floor area of Western-style room 78B S4 = 7.13m ² , ceiling height h = 2.4m, and air volume Qu = 49.2m ³ . As a result, the number of air supply ports 84 is calculated as follows.

Total number of air supply ports 84 in the building 50
{(Sa + Sb) x h} / Qu = 5.89 (<6 units) 6 units Number of air supply ports 84 of LD72 (S1 x h) / Qu = 1.06 (<2 units) 2 units Main bedroom 76 Number of air supply ports 84 (S2 x h) / Qu = 0.68 (<1 unit) 1 unit Number of air supply ports 84 in Western-style room 78A (S3 x h) /Qu = 0.35 (<1 unit) 1 Number of air supply ports 84 in the Western-style room 78B (S4 × h) / Qu = 0.35 (<1 unit) 1 unit

In the next step 104, the number of air supply ports 84 in the equipment information 32 is evaluated by comparing the number of air supply ports 84 set in the equipment information 32 with the calculated number of air supply ports 84. .. Further, in step 106, the evaluation result is displayed on the monitor 16 or the like to notify the user.

In the initial equipment information 32, the number of air supply ports 84 is 2 for LD72, 1 for master bedroom 76, 1 for Western-style room 78A, and 1 for Western-style room 78B, and the total number of air supply ports 84 is There are a total of 5 units (see FIGS. 4 (A) and 4 (B)). On the other hand, the number (total number) of the air supply ports 84 calculated based on the building information 30 and the design information 38 is six. From here, in step 106, the evaluation result that the total number of the air supply ports 84 for the building 50 is evaluated to be insufficient is notified.

In the next step 108, it is requested to confirm whether or not to change the design of the ventilation equipment. In the present embodiment, it is evaluated that the number of air supply ports 84 is insufficient for one unit, and when it is instructed (input) to make a design change to increase the number of air supply ports 84, A positive determination is made in step 108, and the process proceeds to step 110. In step 110, a change in the number of air supply ports 84 (including the installation position) is accepted. The number of air supply ports 84 is accepted, for example, by displaying the floor plan of the building 50 (plan view of each floor) on the monitor 16 and inputting the installation position of the air supply port 84 to be added.

Generally, when the number of air supply ports 84 is the same between rooms having different floor areas (air volume), the ventilation equipment is designed to increase the number of air supply ports 84 in the room having a large floor area. This point is included in the design information 38 as a design condition. From here, design changes are made to increase the number of air supply ports 84 in the master bedroom 76. When increasing the number of air supply ports 84 in the master bedroom 76, for example, as shown by a broken line in FIG. 4B, the outer wall of the master bedroom 76 at a position away from the air supply port 84A (a position where shortcuts can be suppressed). An air supply port 84 (84F) is installed in the northern part of 66A.

In the next step 112, the equipment information 32 is updated (changed) based on the changed number of air supply ports 84 and the installation position, and the number of air supply ports 84 in the building 50 is set to satisfy the design information 38. Will be done.

When the evaluation of the number of the air supply ports 84 is completed, the installation position of each of the air supply ports 84 (84A to 84F) is evaluated. The installation position of the air supply port 84 is the distance from the installation position of the air supply port 84 (the outer wall 66 where the air supply port 84 is installed) to the site boundary line 54, and the noise level emitted from the adjacent land in contact with the site boundary line 54. Based on the above, the evaluation is made based on whether or not the noise level entering the living room from the air supply port 84 is equal to or lower than the preset reference value.

FIG. 6 shows a layout plan of the site 52 in which the baseline 86 and the secondary baseline 88 as the noise boundary line where the noise level is predicted to be the reference value in the site 52 are virtually set. .. FIG. 7 shows an example of the recommended noise level as a reference value for each use of the living room. 8 (A) and 8 (B) show a plan view of the building 50 in which the ventilation system is changed based on the evaluation result, and FIG. 8 (A) shows the first floor. , FIG. 8B shows the second floor.

As shown in FIG. 7, in the building 50 as a house, it is preferable that the reference value of the noise level is 45 dB or less in the LD72, 35 dB or less in the master bedroom 76, and 40 dB or less in the Western rooms 78A and 78B. These reference values may differ depending on the usage situation of each time zone of the living room. For example, since the master bedroom 76 is mainly used at night, it is often acceptable even if it slightly exceeds the standard value during the daytime (daytime), and the LD72 is rarely used at midnight. .. From here, in the present embodiment, daytime (daytime) is applied as an example of the time zone, and the reference value of each living room is set to the same (for example, 40 dB) for explanation.

As shown in FIG. 6, in the present embodiment, the baseline 86 is set as the noise boundary line whose reference value is the noise level based on the noise level of the adjacent land and the site boundary line 54, etc., and the air supply port 84 is the base. The installation position of the air supply port 84 is evaluated depending on whether or not the air supply port 84 is separated from the line 86.

Further, as the air supply port 84, there is a sound insulation air supply port provided with a sound insulation member for suppressing noise, and by using the sound insulation air supply port, it is possible to suppress the noise level invading the building 50. Become. From here, when a sound-insulating air supply port is used instead of the normal air supply port 84, a secondary baseline 88 having a noise level equal to or lower than the reference value is set, and the baseline 86 and the secondary baseline 88 are set. The installation position of the air supply port 84 used is also evaluated.

As shown in FIG. 5, in the evaluation of the installation position of the air supply port 84, a reference value (for example, 40 dB) which is an upper limit of the noise level in each living room of the building 50 is set in step 114.

In the next step 116, the baseline 86 and the secondary baseline are set (the noise boundary line is set) in the site 52. Generally, the noise level decreases as the distance from the noise source increases. From here, in step 116, the site information 34 and the environmental information 36 are read, and assuming that the sound source of the noise emitted from the adjacent land exists on the site boundary line 54, the baseline 86 is set at a distance where the noise level becomes the reference value. Set. As a result, for the road 56 on the east side of the site 52, the baseline 86A along the site boundary line 54A is set at a distance m1 from the site boundary line 54A according to the noise level (70 dB) set on the road 56. Is set. Further, with respect to the road 58 on the west side of the site 52, the baseline 86B is provided along the site boundary line 54B at a distance m2 from the site boundary line 54B according to the noise level (60 dB) set on the road 58. Set.

Further, in the residential land 62 where the building 64 is located, the sound source of noise is regarded as the building 64. From here, for the residential land 62 on the south side of the site 52 (site boundary line 54D side), the baseline 86C is set at a distance m3 from the building 64 according to the noise level (45 dB) set in the residential land 62. The baseline 86C is set to a shape similar to the shape of the building 64 on the site 52 side. Since the noise level of the vacant lot 60 is low, the baseline 86 on the vacant lot side (site boundary line 54C side) of the site 52 is omitted.

By using the sound-insulating air supply port instead of the normal air supply port 84, the noise level can be reduced by the sound-insulating air supply port. From here, the secondary baseline 88 is set at a position on the site boundary line 54 side from the baseline 86 at a distance m4 according to the noise level attenuated by the sound insulating air supply port. As a result, the secondary baseline 88A is set on the site boundary line 54A side (road 56 side) of the baseline 86A, and the secondary baseline 88B is set on the site boundary line 54B side (road 58 side) of the baseline 86B. To. Further, a secondary baseline 88C is set between the baseline 86C and the building 64.

After that, in step 118 of FIG. 5, each of the air supply ports 84 (84A to 84F) installed in the building 50 based on the baseline 86 (86A to 86C) and the secondary baseline 88 (88A to 88C). Evaluate the installation position of.

Here, as shown in FIGS. 4A and 6, since the air supply port 84A is within the baseline 86B and the secondary baseline 88B, the installation position of the air supply port 84A is not appropriate (x mark). It is evaluated that the installation position needs to be improved. Further, since the air supply port 84B is inside the baseline 86B but is out of the secondary baseline 88B, it is evaluated that the installation position of the air supply port 84B is not always appropriate (marked with Δ).

As shown in FIGS. 4B and 6, the air supply port 84D of the Western-style room 78A is detached from both the baselines 86A to 86C and the secondary baselines 88A to 88C, so that the installation position of the air supply port 84D is , It is evaluated as appropriate (○ mark). Further, since the air supply port 84E of the Western-style room 78B is inside the baseline 86B and the secondary baseline 88B, the installation position of the air supply port 84E is evaluated as inappropriate (x mark), and it is necessary to improve the installation position. It is evaluated that there is.

Further, the air supply ports 84C and 84F of the master bedroom 76 are inside the baseline 86A, but are outside the secondary baseline 88A. From this, it is evaluated that the installation positions of the air supply ports 84C and 84F are not always appropriate (marked with Δ).

In step 120 of FIG. 5, the evaluation result (evaluation result in step 118) of each air supply port 84 (84A to 84F) is displayed on the monitor 16 for notification. Further, in step 122, it is confirmed whether or not to change the design of the ventilation equipment such as changing the installation position of the air supply port 84.

It is evaluated that the air supply ports 84A and 84E need to be improved in the installation position, and the air supply ports 84A and 84E are designated and instructed to change the design of the ventilation equipment (design change of the installation position) ( (Input), affirmative determination is made in step 122, and the process proceeds to step 124.

In this step 124, a ventilation facility for suppressing the noise level in the building 50 is proposed. For example, a new installation position is proposed for the LD72 in which the air supply port 84A is installed and the Western-style room 78B in which the air supply port 84E is installed. When proposing a new installation position of the air supply port 84 (84A, 84E), it is performed based on the baseline 86 (86B), the secondary baseline 88 (88B) and the design information 38.

Here, as shown in FIGS. 6 and 8 (A), in the LD72 of the building 50, the outer wall 66F on the entrance 70H side is off the baselines 86A and 86B, and even near the air supply port 84B. No (not in a position where shortcuts are likely to occur). From here, as shown in FIG. 8A, the installation position of the air supply port 84A can be changed to the outer wall 66F.

Further, as shown in FIGS. 6 and 8B, in the Western-style room 78B of the building 50, the portion of the outer wall 66E opposite to the Western-style room 78A is located close to the baseline 86B, but the window of the Western-style room 78B. (It will be a position where shortcuts are unlikely to occur). From here, as shown in FIG. 8B, the installation position of the air supply port 84E can be changed to the portion of the outer wall 66E opposite to the Western-style room 78A (the portion closer to the outer wall 66B).

From here, in step 124, a portion of the outer wall 66F is proposed as a new installation position of the air supply port 84A, and a portion of the outer wall 66E opposite to the Western-style room 78A as a new installation position of the air supply port 84E ( The part closer to the outer wall 66B) is proposed. The proposal for new installation positions for the air supply ports 84A and 84E is to display a plan view showing the floor plans of the first and second floors on the monitor 16 and clearly indicate the new installation positions on the displayed plan view. Can be done.

In the flowchart of FIG. 5, when a new installation position (design change of the ventilation equipment) of the air supply port 84 is proposed, it is requested to confirm whether or not to approve the proposed installation position in the next step 126. As a result, when the proposed installation position is approved, an affirmative determination is made in step 126, and the process proceeds to step 128. In this step 128, the equipment information is updated based on the proposed installation position. After that, in step 130, it is confirmed whether or not to re-evaluate the installation position (equipment information) of the air supply port 84 for the updated equipment information 32, and it is instructed not to re-evaluate. A negative determination is made at 130, and the evaluation process is terminated.

In step 124, a new installation position was proposed for the air supply ports 84A and 84E, but the present invention is not limited to this, and the air supply ports 84B, 84C and 84F evaluated as not necessarily appropriate (marked with Δ) are included. Proposals for design changes to ventilation equipment may be made.

In this case, the air supply ports 84B, 84C, 84F and the air supply port 84E whose installation position has been changed are inside the baseline 86 (on the site boundary line 54 side), but deviate from the secondary baseline 88. (The side opposite to the site boundary line 54 of the secondary baseline 88). Therefore, by using the sound insulating air supply port instead of the normal air supply port as the air supply port 84B, 84C, 84F and the air supply port 84E whose installation position has been changed, the noise level in the building 50 is set as a reference value. It can be as follows.

From here, along with the proposal of a new installation position for the air supply ports 84A and 84E, the sound insulating air supply port should be used for the air supply ports 84B, 84C, 84F and the air supply port 84E whose installation position has been changed. You may make a suggestion.

In this way, the evaluation device 10 can evaluate whether or not the number of air supply ports 84 for the building 50 is appropriate. This facilitates the design of ventilation equipment that can obtain a predetermined ventilation capacity (air supply capacity).

Further, in the evaluation device 10, the baseline 86 and the secondary baseline 88 are set based on the site information 34 and the environmental information 36. Further, the evaluation device 10 evaluates the installation positions of the air supply port 84 specified by the building information 30 and the equipment information 32 with respect to the baseline 86 and the secondary baseline 88. Therefore, the air supply port 84 in which the noise level in the building 50 may exceed the reference value can be easily identified. Further, in the evaluation device 10, the installation position of the air supply port 84 in which the noise level in the building 50 is equal to or less than the reference value can be easily specified from the positions of the baseline 86 and the secondary baseline 88 with respect to the outer wall 66 of the building 50. .. As a result, it is possible to easily identify the air supply port 84 whose installation position needs to be changed, and at the same time, it is possible to easily specify the new installation position of the corresponding air supply port 84, and the ventilation level becomes the reference value or less. The equipment design becomes easy.

Further, in the ventilation equipment evaluated by the evaluation device 10, even if the sound inside the building 50 leaks from the air supply port 84, the level of the sound leaking outside the site 52 can be suppressed. As a result, it is possible to suppress the sound inside the building 50 from being perceived as noise by a person such as a pedestrian outside the site 52.

In the present embodiment described above, the installation position of the air supply port 84 is evaluated, and a new installation position or a change to the sound-insulating air supply port is proposed, but the installation position of the air supply port is changed. Even if you change to a sound-insulating air supply port, the noise level inside the building may not fall below the standard value. In addition, the ventilation system includes a central ventilation system that does not provide an air supply port for each room on the outer wall and enables air to be supplied to a plurality of rooms at once. From here, if there is a possibility that the noise level inside the building will not fall below the standard value even if the installation position of the air supply port is changed or the air supply port is changed to sound insulation, the evaluation device will centralize the ventilation equipment of the building. You may suggest changing to a ventilation system.

Further, in the present embodiment, it is proposed to change the design of the ventilation equipment including the installation position of the air supply port 84 in the evaluation device 10. However, the design change of the ventilation equipment including the change of the installation position of the air supply port 84 specifies a new installation position by operating the keyboard 18A, the mouse 18B, etc. on the plan view of the building 50 displayed on the monitor 16. You may.

In this case, by referring to the baseline 86 and the secondary baseline 88, a more appropriate position as the installation position of the air supply port 84 can be easily specified, and the installation position can be easily changed. Further, the change of the designation from the normal air supply port to the sound insulating air supply port can be performed by designating the target air supply port 84 on the monitor 16 and operating the keyboard 18A and the mouse 18B. It is possible to easily select an air supply port or a sound-insulating air supply port.

Further, in the present embodiment, the reference value of the noise level in the building 50 has been described uniformly, but the reference value may be set for each living room, and the reference value may be set for each time zone. In this case, the noise boundary line (baseline 86 and secondary baseline 88) may be set based on the set reference value.

Further, in the present embodiment, it is described that the installation position of the air supply port 84 is evaluated and the noise level in the building 50 is proposed to be equal to or lower than the reference value, but the noise also enters from the exhaust port 80. .. From this point, the evaluation device may evaluate the installation position of the exhaust port as well as the air supply port.

Further, in the present embodiment described above, the ventilation equipment of the third type ventilation has been described as an example, but the evaluation target of the evaluation device 10 is not limited to the ventilation equipment of the third type ventilation, but the ventilation equipment of the second type ventilation. And the ventilation equipment of the first kind ventilation may be used.

10 Evaluation device 22 Information acquisition unit 24 Evaluation unit 26 Output unit 28 Change reception unit 30 Building information 32 Equipment information 34 Site information 36 Environmental information 38 Design information 40 Sub-evaluation unit 42 Main evaluation unit 50 Building 52 Site 54 (54A to 54D) Site boundary line 56, 58 Road 60 Open space 62 Residential land 72 LD
76 Master bedroom 78 (78A, 78B) Western-style room 80 Exhaust port 84 (84A-84F) Air supply port 86 (86A-86C) Baseline 88 (88A-88C) Secondary baseline

Claims (2)

Building information including information that can specify the position of a living room in a building, equipment information that includes information that can specify the installation position of an air supply port provided on the outer wall of the building in a ventilation facility, and the above-mentioned on the site where the building is arranged. Site information including information that can specify the distance from the site boundary line of the outer wall of the building, and environmental information including information that can specify the noise level and the sound source of noise emitted from the adjacent land in the adjacent land around the site. The reception desk that accepts
Based on the distance of the air supply port from the site boundary line and the environmental information of the adjacent land in contact with the site boundary line, the noise level in the living room where the air supply port is installed is a preset reference value. The evaluation unit that evaluates the installation position of the air supply port and the evaluation unit that evaluates the installation position of the air supply port based on whether or not it is as follows.
A notification unit that notifies the evaluation result of the evaluation unit and
Ventilation equipment evaluation device equipped with. The building information includes the air volume of the building and the air volume of the living room.
The evaluation unit calculates the number of the air supply ports in the living room and the total number of the air supply ports of the building from the building information and the air volume set for each air supply port, and is based on the calculation result. The evaluation device for ventilation equipment according to claim 1, which comprises evaluating the number of air supply ports in the equipment information.

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