JPH0954789A - Method for designing exhaust gas duct - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform the design of an exhaust gas duct on a screen. SOLUTION: When the setting of an antismoke section is performed on the screen of a display part 1 by operating an input setting part 2, the setting is performed from the correspondence table in which the exhaust gas port corresponding to the area of the antismoke section is stored in a storage part 3. When the exhaust gas port is arranged at a prescribed location of the antismoke section, an exhaust gas route is set and a prescribed route is displayed, the exhaust gas capacity and the exhaust gas duct size on each route line are determined and they are displayed on the corresponding route line on the screen of a display part 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for designing a smoke exhaust duct, and for example, a smoke exhaust duct design suitable for use in a building facility design work for selecting smoke exhaust ports and determining a smoke exhaust duct size. A method and apparatus.

[0002]

2. Description of the Related Art Conventionally, in a CAD system for designing a building equipment, when selecting a smoke exhaust duct size, first, a smoke prevention section, a ceiling height, and a smoke exhaust system are determined, and then a building standard method. Calculate the flue gas volume for each part in accordance with the rules specified in. If there is merging, the height of the ceiling, the area of large and small smoke-proof compartments, and the minimum flue gas volume should be taken into consideration when making a decision. Based on this amount of flue gas, the selection of the flue gas outlet and the determination of the flue gas duct size are individually made and reflected in the drawing.

[0003]

However, in this CAD system for building equipment design, when designing the smoke exhaust port and smoke exhaust duct size, the exhaust air volume, smoke exhaust port selection,
The user must determine the amount of flue gas and the size of the flue gas duct for each part of the flue gas duct, and this requires expert knowledge. There was a problem that it was difficult to design.

The present invention has been made in view of such a situation, and in the process of drawing, the smoke exhaust port selection and the smoke exhaust duct size determination are automatically performed.
Even a CAD operator who does not have specialized knowledge can easily and efficiently design and draw a smoke exhaust port and smoke exhaust duct size.

[0005]

A smoke exhaust duct designing method according to claim 1, wherein a smoke preventive section is set on the screen, and the smoke preventive section is set based on the set area of the smoke preventive section. Set the corresponding smoke outlets, place the set smoke outlets at predetermined positions in the smoke prevention compartment, select the duct type for which the aperture is calculated, and set the route connecting the smoke outlets. The specified location on the designated route, calculate the air volume of the upstream route from the location on the designated route, and generate the air flow on the upstream route from the location on the designated route based on the calculated air volume. It is characterized in that the diameters of the respective smoke exhaust ducts are calculated, and the calculated diameters are displayed at corresponding positions on the route.

The smoke exhaust duct designing apparatus according to claim 2 is
Display means for displaying at least one of a figure and a character (for example, the display unit 1 in FIG. 1), and a smoke prevention section setting means for setting a smoke prevention section on the screen of the display means (for example, step S12 in FIG. 3). , A smoke outlet setting means (for example, step S13 in FIG. 3) for setting a smoke outlet corresponding to the smoke barrier based on the area of the smoke barrier set by the smoke barrier setting means, and the smoke outlet setting A smoke exhaust port arranging unit (for example, step S14 in FIG. 3) for arranging the smoke exhaust ports set by the means at predetermined positions in the smoke proof compartment, and a duct type selecting unit (for selecting the duct type for which the diameter calculation is performed) ( For example, step S21 in FIG. 13, a route setting means for setting a route connecting the smoke exhaust ports (for example, the input setting unit 2 in FIG. 1), and a route for instructing a predetermined location on the route set by the route setting means. Instruction means ( The example step S22 in FIG. 13)
Based on the air volume calculated by the air volume calculation means, the air volume calculation means (for example, the calculation unit 5 in FIG. 1) that calculates the air volume of the upstream path from the point on the path instructed by the path instruction means. Diameter calculating means for calculating the diameter of each smoke exhaust duct generated in the upstream path from the position on the path designated by the means (for example, step S in FIG. 13).
24) and a processing unit (for example, the processing unit 4 in FIG. 1) for displaying the aperture calculated by the aperture calculating unit at a corresponding position on the route displayed on the display unit.

In the smoke exhaust duct designing method according to the first aspect, when the smoke preventive section is set on the screen, the smoke exhaust section corresponding to the smoke preventive section is determined based on the area of the smoke preventive section. Since this is set, place each smoke outlet at a predetermined position in the smoke prevention section, select the duct type for which the aperture is calculated, set the route connecting the smoke outlets, and then set the route on the set route. When a specified location is specified, the air volume of the upstream path from the location on the specified path is calculated, and based on that, the diameter of each smoke exhaust duct generated on the upstream path from the location on the specified path. Is calculated and the calculated aperture is displayed at the corresponding position on the route. Therefore, the caliber of the smoke exhaust duct is automatically calculated and displayed only by performing a simple operation such as designation of the smoke proof section.

In the smoke exhaust duct design apparatus according to the second aspect, when the smoke preventive section setting means sets the smoke preventive section, the smoke exhaust port setting means determines the area of the smoke preventive section by Since the smoke exhaust port corresponding to the smoke prevention section is set,
The smoke outlet placement means arranges the smoke outlets at predetermined positions in the smoke prevention compartment, the duct type selection means selects the duct type for which the diameter is to be calculated, and the route setting means selects the smoke outlets. When the route to be connected is set, and further, the route instructing means instructs a predetermined position on the route, the air volume calculating means calculates the air volume of the upstream route from the point on the instructed route, and based on this, the caliber The calculation means calculates the diameter of each smoke exhaust duct generated in the upstream path from the point on the specified path, and the processing means places the diameter at the corresponding position on the path displayed on the display means. Is displayed. Therefore, the caliber of the smoke exhaust duct is automatically calculated and displayed only by performing a simple operation such as designation of the smoke proof section.

[0009]

1 is a block diagram showing the configuration of an embodiment of a smoke exhaust duct designing apparatus according to the present invention. The input setting unit 2 is composed of, for example, a keyboard or a pointing device such as a tablet or a mouse, and is displayed by inputting a predetermined numerical value or moving a predetermined cursor displayed on the display unit 1 described later. A predetermined position on the unit 1 can be designated.

The processing unit 4 determines a predetermined number, a character, and a character based on the predetermined numerical value and position information input from the input setting unit 2.
Alternatively, data corresponding to the graphic is displayed on the display unit 1 and the storage unit 3.
To supply. The display unit 1 is configured to display numbers, characters, or figures corresponding to the data supplied from the processing unit 4 on the screen. The storage unit 3 is also configured to store the data supplied from the processing unit 4.

Under the control of the processing unit 4, the arithmetic unit 5 performs a predetermined arithmetic operation based on the data stored in the storage unit 3 and supplies the arithmetic result to the processing unit 4. The processing unit 4 supplies the calculation result supplied from the calculation unit 5 to the display unit 1, and the display unit 1 displays the calculation result supplied from the processing unit 4 on the screen.

FIG. 2 is a flow chart showing the outline of the procedure for designing the smoke exhaust duct. First, in step S1, the smokeproof section is designated. Next, in step S2, the smoke exhaust port is arranged, and then the process proceeds to step S3 to create the path of the smoke exhaust duct, and then to step S4.
At, the diameter of the smoke exhaust duct is calculated.

Next, the details of the procedure for designating the smoke exhaust section and arranging the smoke exhaust ports in steps S1 and S2 will be described with reference to the flowchart of FIG.
First, in step S11, a smoke exhaust port is selected. Next, the process proceeds to step S12, and the message “Please specify the smokeproof section.” As shown in FIG. 4 is displayed on the screen. By operating the input setting unit 2, a predetermined smokeproof Set the partition instructions.

For example, a cross-shaped cursor is displayed on the screen of the display unit 1, and the input setting unit 2 is operated to move the cursor to a predetermined position on the screen of the display unit 1. Next, by pressing a predetermined button, a predetermined position on the screen is designated. Perform the same operation and specify another position on the screen. Thereby, a predetermined line segment can be designated. By repeating the above process, another 1
The smoke-proof compartment can be designated by designating one or a plurality of predetermined positions and finally designating the vicinity of the first designated position. The line segments that constitute the smoke-proof section designated in this way are displayed in red on the screen of the display unit 1, for example. Next, by operating the predetermined confirmation button,
The designated smokeproof section is confirmed.

At this time, for example, as shown in FIG. 5A, the lines (indicating lines) connecting the instructed positions in order are overlapped (in this case, the indicating lines A ₁ A ₂ and A ₄ A ₅ 5B), the last instructed instruction line A ₄ A ₅ is erased and returned to the previous state, and the screen of the display unit 1 is displayed as shown in FIG. The error message “The smoke zone indication is abnormal.” Is displayed as shown in. Therefore, the operator designates the predetermined smokeproof section by designating the final position A ₅ again.

In addition, the area of the smoke prevention section designated is 540
If it is determined by the processing unit 4 whether the area exceeds m ² (square meter) and the area of the smoke-proof section exceeds 540 m ² , the error message “smoke-proof section” as shown in FIG. 7 is displayed. Is over 540 m ^2. ”is displayed. Return to step S12 again and step S1
Repeat operation 2 above. On the other hand, when it is determined that the area of the smokeproof section does not exceed 540 m ² , for example,
After the smokeproof section setting is confirmed by designating the confirmation icon on the window, the process proceeds to step S13.

In step S13, the smoke outlet setting is confirmed or input. The screen of the display unit 1 is shown in FIG.
As shown in, the smoke exit setting window is displayed.
Here, the diameter of the smoke outlet corresponding to the area of the smoke-proof compartment specified earlier is the smoke outlet diameter and the smoke-exhaust compartment area as shown in FIG. 9 stored in advance in the storage unit 3. It is selected from the relationships and displayed in the window along with the external view of the corresponding smoke outlet. At this time, the area of the smokeproof section is rounded to the larger value of the smokeproof section area shown in FIG. 9, and the corresponding smoke exhaust port diameter is selected.

Further, in the connection point column, the size of the vertical and horizontal portions of the portion to which the smoke exhaust duct is connected are displayed,
The column between the connection point and the reference point displays the distance between the connection point and the reference point, and the column for the air volume displays the air volume of the smoke exhaust port. Here, the connection point is a portion to which a pipe member such as a straight pipe is connected, and the reference point is a portion at the entrance of the smoke exhaust port. In addition, the value of the air volume is a value obtained by rounding up the value below the decimal point of the area of the smoke exhaust section to an integer. In this case, 300 × 300 (millimeter (mm)) is displayed in the connection point column and 150 in the connection point-reference point column.
(Mm) is displayed, and 30 (cubic meter / hour (m ³ / h)) is displayed in the column of air volume.

The range that can be input as a connection point is 3
00 to 1000, the range that can be input as the value of the connection point to the reference point is 1 to 999, and the range that can be input as the air volume is 1 to 540. If any of these values is an abnormal value outside the range that can be entered, the error message “XXX” shown in FIG.
The input value of is incorrect. Is displayed. Where XX
In X, an input item (at least one of a connection point, a connection point to a reference point, or an air volume) in which an inappropriate input value is input is displayed. When the input values of a plurality of input items are inappropriate, a plurality of error messages can be displayed.

Here, when the processing is to be stopped, the stop button icon on the window is specified by operating the input setting section 2, for example. This completes the process. On the other hand, when confirming the set value, the confirm button icon is designated. As a result, the smoke exhaust port set in step S13 is confirmed, and the process proceeds to step S14.

In step S14, the location of the smoke exhaust port is instructed. On the screen of the display unit 1, a message as shown in FIG. 11 "Please specify the placement position."
Is displayed, the input position of the smoke exhaust port is input by operating the input setting unit 2. That is, by operating the input setting unit 2, for example, a cross-shaped cursor is displayed on the display unit 1 and is designated first, and a predetermined position in the smoke-proof compartment displayed on the screen is designated. Only one smoke vent can be placed in one smoke compartment.

When the arrangement position is instructed by the input setting unit 2, the processing unit 4 determines whether or not the instructed position is in the smoke-proof section, and it is determined that it is outside the smoke-proof section. The error message “The location is outside the smokeproof section.” As shown in FIG. 12 is displayed on the screen of the display unit 1. Therefore, the arrangement of the smoke exhaust port is redone again. On the other hand, when it is determined that the instructed position is within the smoke prevention section, the process proceeds to step S15, and the smoke exit set in step S13 is displayed on the screen of the display unit 1 at the position instructed in step S14. Placed, displayed,
The process ends.

In this way, the setting of the smokeproof section, the setting of the smoke exhaust port, and the arrangement thereof are performed.

Next, in step S3 of FIG. 2, the path of the smoke exhaust duct is created. That is, when the user (operator) operates the input setting unit 2,
A predetermined route connecting the smoke exhaust ports displayed on the screen of the display unit 1 is created. The created route is displayed by, for example, a dotted line. When the path of the smoke exhaust duct is created, in step S4, the calculator 5 calculates the diameter of the smoke exhaust duct generated along the path created in step S3.

Next, the details of the processing of step S4 will be described with reference to the flowchart of FIG. First, in step S21, the type of the smoke exhaust duct generated along the smoke exhaust path created in step S3 is input. For example, a window for selecting a smoke exhaust duct type (mode) as shown in FIG. 14 is displayed, so by operating the input setting unit 2, an icon written as “corner”, which means a square duct, Or select one of the icons marked "Circle" which means circular duct.
The character of the selected icon is highlighted, for example.

Next, in step S22, a core wire is designated. That is, the route for which the aperture is to be calculated is designated. For example, as shown in FIG. 15, by operating the input setting unit 2 in a state where the smoke exhaust port and its route are displayed on the screen of the display unit 1, a predetermined distance on the route to be the target of the aperture calculation is determined. Point to position A ₁₁ . Thereby, the path upstream from the position A ₁₁ on the path can be designated as the target of the aperture calculation. Here, the direction toward the smoke outlet is upstream,
The opposite was made downstream.

Next, in step S23, it is determined whether or not the designated route is normal. For example, in FIG.
If the outlet of the route is not connected, that is, if the device or the core member is connected to only one end of the core member (straight pipe) in the specified route, It is determined that the given route is not normal, and under the control of the processing unit 4, the error message “The indicated route is not closed” as shown in FIG. 17 is displayed on the screen of the display unit 1. Alternatively, the same error message is displayed when there is a core member in the designated path that is not connected at both ends.

If there is a looping route as shown in FIG. 18, it is determined that the instructed route is not normal, and the control of the processing unit 4 causes an error message "shown in FIG. 19". There is a looping route ”is displayed on the screen of the display unit 1. As described above, when it is determined that the instructed route is not normal and the error message is displayed on the screen of the display unit 1, the operator resets the route or rearranges the devices. .

Further, the processing unit 4 determines the distance along the route between the point where the route designated in step S22 is connected to the smoke exhaust port (apparatus) and the most downstream point of the designated route. A check is made to see if it is less than 30 meters (meters).

For example, when the route as shown in FIG. 20 is set, the distance between the most downstream point P ₁₁ and the merging point P ₁₂ is the distance a, and the merging point P ₁₂ and the smoke exhaust port 21 are connected. Point K
The distance between ₁ is the distance b, the distance between the confluence points P ₁₂ and P ₁₃ is the distance c, the distance between the confluence points P ₁₃ and P ₁₄ is the distance d, and the confluence point P ₁₄ and the smoke exhaust The distance between the connection point K ₂ of the mouth 22 is the distance e, the distance between the confluence point P ₁₄ and the connection point K ₃ of the smoke exhaust port 23 is the distance f, and the distance between the confluence point P ₁₃ and the confluence point P _15. Is a distance g, a confluence point P ₁₅ is a distance h between the connection point K ₄ of the smoke exhaust port 24, a distance i is a distance between the confluence points P ₁₅ and P ₁₆ , and a confluence point P ₁₆ The distance between the smoke exhaust port 25 and the connection point K ₅ is defined as the distance j.

The calculation unit 5 calculates the distances of all the routes from the most downstream point P ₁₁ to each smoke exhaust port. As a result, for example,
The sum of the distance a and the distance b is 10 m, the sum of the distance a, the distance c, the distance d, and the distance e is 20 m, the sum of the distance a, the distance c, the distance d, and the distance f is 20 m, the distance a,
The sum of the distance c, the distance g, and the distance h is 28 m, and the sum of the distance a, the distance c, the distance g, the distance i, and the distance j is 3
Assume that it is calculated to be 5 m.

At this time, the most downstream point P ₁₁ , the confluence points P ₁₂ , P
The connection point K _{5 of the} smoke exhaust port 25 through ₁₃ , P ₁₅ and P ₁₆
The total length of the route to reach over 30 m. All other routes are less than 30m. Therefore, when the route as shown in FIG. 20 is designated, by the control of the processing unit 4, the route line between the junction point P ₁₆ and the connection point K ₅ of the smoke exhaust port 25, and the connection point K ₅ are, for example, In addition to being displayed in red, the error message "distance is
There is a route over 30m. Is displayed on the screen of the display unit 1, and the process ends.

Here, the distance of the path line in the Z-axis direction (the direction from the front side to the back side of the paper) is not considered. In addition, the distance of the route line is calculated by the calculation unit 5 based on the coordinate data of each smoke outlet, the most downstream point, the confluence point where the routes intersect, which are stored in the storage unit 3 as a database.

Further, in step S23, can the processing unit 4 and the arithmetic unit 5 actually generate a member such as a smoke exhaust duct on the route in the previously designated pipe mode (corner or circle)? Whether or not is simulated. For example, if a predetermined member is to be generated on the screen in the round mode at the confluence point P ₂₀ in FIG. 22, the T tube cannot be generated in the round mode, and thus the route lines L ₈₁ , L ₈₂ , and L _83.
Is displayed in red, for example, and the error message “There is no corresponding member. Please change the route or mode.” Is displayed on the screen of the display unit 1 as shown in FIG.

Similarly, in the case of the angular mode, as shown in FIG. 24, when another path line is obliquely connected to a predetermined path line, it is not possible to generate a pipe member there. In this case also, the error message “There is no corresponding member. Please change the route or mode.” Shown in FIG. 23 is displayed on the screen of the display unit 1. In such a case, the process returns to step S21, so that the operator redoes the designation of the route for which the diameter is to be calculated, or changes the pipe mode (corner or round duct type). On the other hand, when it is determined that the member can be normally generated on each path, the process proceeds to step S25.

When the above-mentioned error does not occur, the process proceeds to step S24, and the calculation unit 5 executes the calculation of the diameter of the smoke exhaust duct generated in the route.

Next, a method for calculating the diameter of the smoke exhaust duct will be described. The method of calculating the diameter of the smoke exhaust duct is divided according to the height of the room in which the smoke exhaust duct is installed. When the height of the room is 3 m or more, the aperture calculation is performed by the same method as in the case of the air conditioning duct. On the other hand, when the height of the room is less than 3 m, the aperture calculation for the smoke exhaust duct is performed. Here, the height of the room is obtained by calculating the difference between the height of the ceiling and the height of the floor.

The diameter of the air conditioning duct is calculated by the constant pressure method from the air volume of the connected equipment. When the diameter of the air conditioning duct is calculated, first, as shown in FIG. 25, the directions of the route lines are arranged so that the wind flows toward each connected device. Here, the arrow shows the direction of the wind flow. For example, as shown in FIG. 26, a predetermined route line L
_When the connected device is connected to ₁ , the calculation unit 5
The air volume of the connected device is set on both the connected device and the route line L ₁ . In this case, since the value of the air volume of the connected device is 100, the air volume of 100 is set to both the connected device and the route line L ₁ connected to it.

Further, as shown in FIG. 27, when another route line L ₃ is connected to the predetermined route line L ₂ , the core member (route line L ₃ ) on the downstream side (direction toward the connection device). ) Has the air volume set as the air volume of the route line L ₂ . In this case, since the value of the air volume on the downstream route line L ₃ is 100, the air volume 100 is set as the air amount on the route line L ₂ . Further, as shown in FIG. 28, a predetermined route line L ₄
When two or more route lines are connected to, the total air volume of the downstream core member (route line) is set. In this case, the three route lines L ₅ , L ₆ , and L ₇ are connected, and the value of the air volume of the downstream route lines L ₅ , L ₆ , and L ₇ is 10 each.
Since it is 0, the total value 300 is the route line L ₄
Is set as the air flow rate.

On the other hand, the diameter of the smoke exhaust duct is calculated using the constant velocity method from the air volume of the connected equipment. First, the direction of the route line is adjusted so that the wind merges from the smoke exhaust port. For example, as shown in FIG. 29, a predetermined route line L ₈
When the connected device is connected to, the arithmetic unit 5 sets the air volume (100 in this case) of the connected device to both the route line L ₈ and the connected device. Further, as shown in FIG. 30, when another route line L ₁₀ is connected to a predetermined route line L ₉ , the air volume of the upstream core member (route line L ₁₀ ) is set as it is.

Further, as shown in FIG. 31, the route line L ₁₃
When a plurality of (two in this case) route lines L ₁₁ and L ₁₂ merge, the air volume of the route line L ₁₃ after the merge is calculated by the calculation unit 5 from the route lines L ₁₁ and L ₁₂ before the merge. The air volume is set to twice the larger air volume. In this case, the route line L ₁₁
The air volume is 200, set as the air volume of from the air flow path lines L ₁₂ is 100, the larger double air volume, i.e., twice the air flow 200 path line L ₁₁ 400 route line L ₁₃ To be done.

Further, as shown in FIG. 32, the route line L ₁₆
In the case where the route line L ₁₄ and the route line L ₁₅ merge with each other, when the air volumes of the route line L ₁₄ and the route line L ₁₅ are equal, the route line L ₁₄
Alternatively, an air flow rate (200 in this case) that is twice the air flow rate (100 in this case) of the route line L _{15 is set as} the air flow rate of the route line L ₁₆ .

Further, as shown in FIG. 33, the route line L ₂₆
The route line L ₂₅ and the route line L ₂₄ merge with each other, the route line L ₂₃ and the route line L ₂₂ merge with the route line L ₂₄ , and
The route line L ₂₁ is connected to the route line L ₂₂ , and the route line L ₂₁
Is connected to a connecting device having an air flow of 500, and a connecting device having an air flow of 400 is connected to the route line L _23.
When a connected device having an air volume of 300 is connected to ₂₅ , the calculation unit 5 sets a value of 500 for the air volumes of the route lines L ₂₁ and L ₂₂ , and sets a value of 400 for the air volume of the route line L _23. Further, the value 300 is set to the air volume of the route line L ₂₅ . In addition, the air flow rate of the route line L ₂₄ includes the route line L ₂₂
A value of 1000 (= 500 × 2), which is twice the air flow rate of, is set.

Further, at the merging point P ₃₂ , twice the air volume of the route line connected to the smoke exhaust port and the air volume of the route line not connected to the smoke exhaust port are compared, and the larger air volume after merging. It is set on the route line. In this case, the value 60 which is twice the air volume 300 of the route line L ₂₅ connected to the smoke exhaust port
0 is compared with the value 1000 which is the air volume of the route line L ₂₄ which is not connected to the smoke exhaust port, and the air volume 1000 of the larger route line L ₂₄ is set as the air volume of the route line L ₂₆ .

Further, as shown in FIG. 34, the route line L ₃₆
To the route line L ₃₅ and the route line L ₃₄ , and to the route line L ₃₄ , the route line L ₃₃ and the route line L ₃₂ .
The route line L ₃₁ is connected to the route line L ₃₂ , and the route line L ₃₁
Is connected to a connecting device having an air volume of 300, and a connecting device having an air volume of 400 is connected to the route line L _33.
When the connected device having the air volume of 500 is connected to ₃₅ , the air volume of each of the route lines L ₃₁ and L ₃₂ is 30 by the calculation unit 5.
0, the air volume of the route line L ₃₃ is set to 400, and the air volume of the route line L ₃₅ is set to 500.
The air volume of the route line L ₃₄ is set to 800 (= 400 × 2), which is twice the air volume of the route line L ₃₃ .

Further, at the confluence point P ₄₂ , the calculation unit 5 compares twice the air volume of the route line connected to the smoke outlet with the air volume of the route line not connected to the smoke outlet. , The larger air volume is set as the air volume of the route line after merging. In this case, 2 of the air volume 500 of the route line L ₃₅
The value 1000, which is double, and the value 80, which is the air volume of the route line L ₃₄
0 is compared and a value 1000 which is twice the air volume of the larger route line L ₃₅ is set as the air volume of the route line L ₃₆ .

Further, for example, as shown in FIG. 35, the route lines L ₄₃ and L ₄₅ merge with the route line L ₄₄ , the route lines L ₄₁ and L ₄₂ merge with the route line L ₄₃ , and the route line L Route line ₄₄ to L ₄₆ , L
₄₇ merges, a connecting device having an air volume of 600 is connected to the route line L ₄₁ at a connection point K ₃₁ , a connecting device having an air amount of 500 is connected to the route line L ₄₂ at a connection point K ₃₂ , and an air flow amount of 300 is connected to the route line L _47. When the connected device of No. 4 is connected at the connection point K ₃₄ , and the connected device of air volume 400 is connected to the route line L ₄₆ at the connection point K ₃₃ , the air volume of the route line L ₄₁ is calculated as 600 by the calculation unit 5. Is set to, the air volume of the route line L ₄₂ is set to a value of 500,
The air volume of the route line L ₄₇ is set to a value of 300, and the route line L ₄₆ is set.
Is set to a value of 400. In addition, the air volume of the route line L _{43 is} the air volume of the route line L _{41 and} the air volume of the route line L ₄₂ .
The air volume 1200, which is twice the air volume 600 of the larger route line L ₄₁ , is set. Similarly, air flow path lines L _45, of the air volume of the air volume and the route line L ₄₆ of the path line L _47, is twice the air volume of air flow 400 of the larger path line L ₄₆ 8
00 is set.

At the merging point P ₅₂ , the air volumes of the route lines that are not connected to each other toward the smoke exhaust port are compared, and the larger air volume is set as the air volume of the route line after the merging. In this case, the air volume of the route line L ₄₃ (= 1200) and the air volume of the route line L ₄₅ (= 800) are compared, and the air volume 1200 of the route line L ₄₃ , which is the larger air volume, is set as the air volume of the route line L _44. Set.

The air volume of the route line is set in order from the route line connected to the furthest smoke exhaust port in the designated route.

Next, as shown in FIG. 36, a method of calculating the diameter of the smoke exhaust duct when a damper is connected on the path will be described. First, the direction of the route line is adjusted so that the wind merges from the smoke exhaust port. In FIG. 33,
The arrows indicate the direction of the wind.

As shown in FIG. 37, when the air volume value of the core component (smoke exhaust port) which is the connected device is 100, the air volume of the route line L ₄₁ connected thereto is calculated by the calculation unit 5. 10
Set to 0. Next, as shown in FIG. 38, when the route line L ₅₂ is connected to the predetermined route line L ₅₁ , the air flow rate of the route line L ₅₁ is set to the air flow rate of the upstream route line L ₅₂ as it is. It

Further, as shown in FIG. 39, the route line L ₆₅
A predetermined damper is connected to the path line L ₆₃ and the path line L ₆₄ is joined to the path line L _65, the path line to the path line L ₆₃ L ₆₁
A path line L ₆₂ is joined, the air volume in the path line L ₆₁ is connected to 100 of the connection device (Haikemuriguchi), the air volume in the path line L ₆₂ 200
The smoke exhaust port is connected, and the air volume of 300 is added to the route line L _64.
When the connected equipment of No. 1 is connected, the air volume in the path between each connected equipment and the first damper is set by the calculation unit 5 as follows. That is, the value 100 is set as the air volume of the route line L _{61, and} the value 2 is set as the air volume of the route line L _62.
00 is set, and the air flow rate of the route line L ₆₄ is 3
00 is set.

Further, the sum of the air volume of the route line L ₆₁ (= 100) and the air volume of the route line L ₆₂ (= 200) is set as the air volume of the route line L ₆₃ . Therefore, the route line L
_A value of 300 is set as the air volume of ₆₃ . Similarly, the air volume of the route line L ₆₃ (= 300) and the air volume of the route line L ₆₄ (= 30).
The value obtained by adding 0) is set as the air volume of the route line L ₆₅ . Therefore, the value 600 is obtained as the air volume of the route line L _65.
Is set.

Further, as shown in FIG. 40, a method of calculating the air volume on each route line when a plurality of routes to which the dampers are connected joins will be described. In this example, the air volume is 2
The route line L ₇₁ is connected to the connecting device of 00, and the air volume is 200.
The route line L ₇₃ is connected to the connected equipment, and the air volume is 3
The route line L ₇₅ is connected to the connecting device of 00. A damper is connected to each of the route lines L ₇₁ , L ₇₃ , and L ₇₅ . The route line L ₇₂ is connected to the route line L ₇₁ , and the route line L ₇₃ and the route line L ₇₂ join the route line L ₇₄ . Further, the route line L ₇₅ and the route line L ₇₄ join the route line L ₇₆ .

On the route line L ₇₁ and the route line L ₇₃ , the air volume 200 of the connected equipment connected thereto is set.
Further, the route line L ₇₂ has an air flow rate 2 of the upstream route line L ₇₁ .
00 is set as it is. On the route line L ₇₅ , the air volume 300 of the connected equipment connected thereto is set. A total value 400 of the air volume of the upstream route line L _{72 and} the air volume of the route line L ₇₃ is set in the route line L ₇₄ .

In route line L ₇₆ , the larger of the total value 400 of the air flow amount of route line L _{71 and} the air flow amount of route line L ₇₃ and the total value 500 of the air flow amount of route line L _{73 and} the air flow amount of route line L _75. The air volume of is set. Therefore, the air flow 500 is set in the path line L _76.

In this way, after the air volume of each smoke exhaust duct generated on each route line is calculated by the calculation unit 5, the diameters of those are calculated.

Next, in step S25, it is determined whether the calculated air volume and caliber are normal. For example, it is checked whether or not backflow of smoke occurs from the smoke exhaust port. As a result, when it is determined that the calculated air volume and caliber are not normal, the process returns to step S21,
Smoke vents and routes are reset.

On the other hand, if it is determined that the calculated air volume and caliber are normal, the process proceeds to step S26. In step S26, the diameter of the smoke exhaust duct calculated using the above-described method of calculating the diameter is, for example, as shown in FIG. 41, in the vicinity of the route line where the smoke exhaust duct having the calculated diameter is generated. It is displayed on the screen of the display unit 1 along with the height at which it is installed. At this time, the calculated aperture is JIS
Displayed after being rounded to the standard value of.

As described above, only by setting the smoke-proof compartment, arranging the smoke exhaust port, and setting the route, the smoke exhaust port is automatically selected and the smoke exhaust duct size is calculated. The calculation result is displayed on the screen of the display unit 1. Therefore, the operator can easily design the smoke exhaust port and the smoke exhaust duct size in the process of creating the drawing. As a result, even a CAD operator who does not have specialized knowledge can perform the design work of the smoke exhaust port and the smoke exhaust duct size, and the efficiency of the work that has conventionally been forced to be divided into labor. It will be possible.

It should be noted that the specific numerical values such as the air flow rate, the caliber, and the height used in the above embodiments are merely examples, and are not limited to these.

[0062]

The smoke exhaust duct designing method according to claim 1,
And according to the smoke exhaust duct designing device of claim 2,
On the screen, when you set the smoke-proof compartment, the smoke outlet corresponding to the smoke-proof compartment is set based on the area of the smoke-proof compartment. , And select the duct type to calculate the diameter,
When a route connecting the smoke exhaust ports is set and a predetermined point on the route is designated, the air volume of the upstream route is calculated from the predetermined position on the designated route, and based on that, the designated route is calculated. Since the diameter of each smoke exhaust duct generated in the upstream path from the above location is calculated and displayed, just by performing a simple operation such as specifying a smoke-proof section,
The diameter of the smoke exhaust duct is automatically calculated and displayed. Therefore, even a person who does not have specialized knowledge can easily design the smoke exhaust port and the smoke exhaust duct size, and the efficiency of the smoke exhaust duct design work can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a smoke exhaust duct designing apparatus of the present invention.

FIG. 2 is a flowchart showing a processing example of the smoke exhaust duct designing apparatus of the present invention.

FIG. 3 is a flowchart showing a detailed processing example of steps S1 and S2 of FIG.

FIG. 4 is a prompting message displayed when designating a smoke-proof compartment.

FIG. 5 is a diagram showing a processing example in a case where an instruction of a smokeproof section is abnormal.

FIG. 6 is an error message displayed when an instruction for a smoke-proof section is abnormal.

FIG. 7 is an error message displayed when the area of the smokeproof section is abnormal.

FIG. 8 is a diagram showing a window displayed when setting a smoke exhaust port.

FIG. 9 is a diagram showing a relationship between a smoke exhaust port diameter and a smoke exhaust section area used for selecting a smoke exhaust port.

10 is an error message displayed when the input value is abnormal in the window of FIG.

FIG. 11 is a prompt message displayed when the smoke exhaust port is arranged.

FIG. 12 is an error message displayed when the arrangement position is abnormal.

FIG. 13 is a flowchart showing a detailed processing example of step S4 in FIG.

FIG. 14 is a diagram showing an example of a duct type selection window.

FIG. 15 is a diagram showing an example of a screen in which a route for performing aperture calculation is designated.

FIG. 16 is a diagram showing an example in which the outlets are not connected.

FIG. 17 is an error message displayed when the balloons are not connected.

FIG. 18 is a diagram illustrating an example in which there is a looping route.

FIG. 19 is an error message displayed when there is a looping route.

FIG. 20 is a diagram showing an example of an instructed route line.

FIG. 21 is an error message displayed when there is a route whose distance exceeds 30 m.

FIG. 22 is a diagram showing an error message displayed when an instruction to generate a T-tube is given in the round mode.

FIG. 23 is a diagram showing a display screen when generation of a T tube is instructed in the round mode.

FIG. 24 is a diagram showing a path in which a tube member cannot be generated in the angular mode.

FIG. 25 is a diagram showing an example of a path of an air conditioning duct.

FIG. 26 is a diagram showing a method of calculating an air volume when devices are connected.

FIG. 27 is a diagram showing a method of calculating an air volume when route lines are connected.

FIG. 28 is a diagram showing a method of calculating an air volume when a plurality of route lines are connected.

FIG. 29 is a diagram showing a method for calculating an air flow rate in a smoke exhaust duct when devices are connected to the smoke exhaust duct.

FIG. 30 is a diagram showing a method of calculating an air volume when route lines are connected.

FIG. 31 is a diagram showing a method of calculating an air volume when a plurality of route lines merge.

FIG. 32 is a diagram showing a method for calculating an air volume when a plurality of route lines merge.

FIG. 33 is a diagram showing an example of route lines connected to three smoke exhaust ports.

FIG. 34 is a diagram showing an example of route lines connected to three smoke exhaust ports.

FIG. 35 is a diagram showing an example of route lines connected to four smoke exhaust ports.

FIG. 36 is a diagram showing an example of a route line having a damper connected to four smoke exhaust ports.

FIG. 37 is a diagram showing a method of calculating an air volume when devices are connected.

FIG. 38 is a diagram showing a method of calculating an air volume when a route line is connected.

FIG. 39 is a diagram showing a method of calculating the air volume on the route to the connected device and the first damper.

FIG. 40 is a diagram showing a method of calculating the air volume on a route other than the route shown in FIG. 39.

FIG. 41 is a diagram showing a display screen when the diameter and height of the smoke exhaust duct are displayed.

[Explanation of symbols]

 1 display unit 2 input setting unit 3 storage unit 4 processing unit 5 computing unit

Claims (2)

[Claims] 1. A smoke-proof compartment is set on a screen, and a smoke outlet corresponding to the smoke-proof compartment is set on the basis of the set area of the smoke-proof compartment. Place each of the mouths at a predetermined position in the smoke prevention section, select the duct type for which the aperture is to be calculated, set the route connecting the smoke exhaust ports, and indicate the predetermined place on the set route. , Calculating the air flow rate of the path upstream from the point on the specified path, and based on the calculated air quantity, smoke emission generated on the path upstream from the point on the specified path A method of designing a smoke exhaust duct, characterized in that the diameters of the respective ducts are calculated, and the calculated diameters are displayed at corresponding positions on the path. 2. A display means for displaying at least one of a figure and a character, a smokeproof compartment setting means for setting a smokeproof compartment on a screen of the display means, and a smokeproof compartment setting means. Based on the area of the smoke-proof compartment, a smoke-exhaust port setting means for setting a smoke-exhaust port corresponding to the smoke-proof partition, and the smoke-exhaust port set by the smoke-exhaust port setting means are set as The smoke exhaust port arrangement means arranged at predetermined positions respectively, the duct type selection means for selecting the duct type for calculating the diameter, the route setting means for setting the route connecting the smoke exhaust ports, and the route setting means. A route instructing means for instructing a predetermined location on the set route; an air volume computing means for computing an air volume of the route upstream from the location on the route instructed by the route instructing means; A caliber calculating means for calculating the caliber of each of the smoke exhaust ducts generated in the upstream path from the location on the path instructed by the path instructing means based on the air volume calculated by the step; A smoke exhaust duct design apparatus comprising: a processing unit that displays the diameter calculated by the diameter calculation unit at a corresponding position on the path displayed on the display unit.