JP7346244B2 - Air volume adjustment method - Google Patents

Description

The present invention relates to an air volume adjustment method for adjusting the air volume of a plurality of air outlets.

Patent Document 1 discloses an invention related to a construction management system that includes a server device, one or more PCs, multiple tablet terminals, and multiple wind speed measuring devices. Wind speed is measured at multiple points and the measurement results are displayed on the screen. If the wind speed value is within the range of plus or minus 10% of the design wind speed and design air volume, it is evaluated as 〇, and if it is outside the range, it is evaluated as × and displayed on the screen.

Japanese Patent Application Publication No. 2018-163422

However, Patent Document 1 only evaluates the air volume, and does not mention an air volume adjustment method for improving variations in the air volume.

The present invention has been made in view of this point, and one of its objects is to provide an air volume adjustment method that can reduce the work load associated with adjusting the air volume of a plurality of air outlets.

An air volume adjustment method according to one aspect of the present invention is an air volume adjustment method for adjusting the air volume blown out from a plurality of air outlets, and includes a first step of arranging a flow rate sensor at each air outlet, A second step of collecting sensor data and transmitting each data to the receiver. Based on the data of each flow rate sensor, a first outlet is selected as a reference air volume from among the plurality of air outlets, and the air volume is determined. a third step of selecting a second air outlet to adjust the air volume of the second air outlet so that the air volume from the second air outlet matches the air volume of the first air outlet; a fourth step of repeating the third step and the fourth step until the air volume from each outlet falls within a predetermined range; As the outlet, an outlet showing the minimum air volume is selected, as the second air outlet, an air outlet showing the maximum air volume, or as the first air outlet, an air outlet showing the maximum air volume is selected. , an air outlet exhibiting a minimum air volume is selected as the second air outlet .

According to the air volume adjustment method of the present invention, it is possible to reduce the work load required to adjust the air volume of a plurality of air outlets. In particular, by making measurements using a sensor group in which multiple flow rate sensors are connected in a daisy chain, problems such as tangled cords are less likely to occur, and each flow rate sensor can be easily placed at multiple outlets. can improve work efficiency.

It is a conceptual diagram (cross-sectional view) of air conditioning equipment. It is a conceptual diagram (perspective view) of air conditioning equipment. FIG. 1 is a perspective view showing an example of an air volume detection device according to the present embodiment. FIG. 1 is a perspective view showing an example of an air volume detection device according to the present embodiment. It is a flowchart figure of the air volume adjustment method of this Embodiment. FIG. 2 is a circuit diagram (an example) of a flow rate sensor device according to the present embodiment. 3 is an air volume value table for each outlet showing an example of the air volume adjustment method according to the present embodiment. 3 is an air volume value table for each outlet showing an example of the air volume adjustment method according to the present embodiment. 2 is a table of air volume values for each outlet showing an example of a conventional air volume adjustment method.

Hereinafter, an air volume adjustment method and an air volume detection device according to the present embodiment will be described with reference to the accompanying drawings.

The air conditioning equipment 1 shown in FIGS. 1 and 2 includes a chamber 2, an air blower 3, a damper 4, a plurality of air outlets 5, and an air volume adjustment mechanism 6.

As shown in FIGS. 1 and 2, a plurality of air outlets 5 are provided on the surface of the chamber 2. As shown in FIGS. The amount of air is adjusted by the damper 4 from the air blower 3 and sent into the chamber 2, and the air is blown out from each outlet 5 located on the surface of the chamber 2. At this time, the air volume from each air outlet 5 can be adjusted by the air volume adjustment mechanism 6 provided at each air outlet 5. Although not limited to this, the air volume adjustment mechanism 6 is a slidable plate located at the bottom of the air outlet 5, and can adjust the air volume by sliding the plate and changing the opening area of the air outlet 5. I can do it.

The air conditioning equipment 1 shown in FIGS. 1 and 2 is provided, for example, in an indoor venue, and each air outlet 5 is arranged at the foot of each seat. The air volume from each outlet 5 is adjusted to be constant.

Conventionally, the air volume from each outlet 5 was measured one by one to adjust the air volume. However, with such a method, it takes a considerable amount of time to make the air volume of all the air outlets 5 constant, and it largely depends on the experience of the operator.

Therefore, the present inventors have developed an air volume adjustment method that can reduce the workload of air volume adjustment compared to the conventional method. First, an air volume detection device applied to the air volume adjustment method of this embodiment will be described.

3 and 4 are examples of the air volume detection device 10 in this embodiment. As shown in FIG. 3, the air volume detection device 10 includes a plurality of flow rate sensors 11 connected in a chain, a sensor group 13 having a data collector 12, and a receiver 14. “LINEd in a row” refers to a state in which a plurality of flow rate sensors 11 are connected in a row. The flow rate sensor 11 includes a sensor element 15 and a frame 16 that supports the sensor element 15 inside. The sensor element 15 will be explained.

As shown in FIG. 6, the sensor element 15 includes a flow rate detection resistance element 17 as a temperature-sensitive resistance element and a temperature compensation resistance element 18.

The flow rate detection resistance element 17 and the temperature compensation resistance element 18 constitute a circuit shown in FIG. As shown in FIG. 6, a bridge circuit 38 is composed of a flow rate detection resistance element 17, a temperature compensation resistance element 18, and resistors 36 and 37. As shown in FIG. 6, the flow rate detection resistance element 17 and the resistor 36 constitute a first series circuit 39, and the temperature compensation resistance element 18 and the resistor 37 constitute a second series circuit 40. ing. The first series circuit 39 and the second series circuit 40 are connected in parallel to form a bridge circuit 38.

As shown in FIG. 6, the output section 31 of the first series circuit 39 and the output section 32 of the second series circuit 40 are each connected to a differential amplifier (amplifier) 43. A feedback circuit 44 including a differential amplifier 43 is connected to the bridge circuit 38 . Feedback circuit 44 includes a transistor (not shown) and the like.

The resistors 36 and 37 have a smaller temperature coefficient of resistance (TCR) than the flow rate detection resistance element 17 and the temperature compensation resistance element 18. The resistance element 17 for flow rate detection has a predetermined resistance value Rs1 in a heated state controlled to be higher than a predetermined ambient temperature by a predetermined value, and the resistance element 18 for temperature compensation has a predetermined resistance value Rs1, for example. , is controlled to have a predetermined resistance value Rs2 at the above-mentioned ambient temperature. Note that the resistance value Rs1 is smaller than the resistance value Rs2. The resistor 36 that constitutes the first series circuit 39 with the flow rate detection resistance element 17 is, for example, a fixed resistor having a resistance value R1 similar to the resistance value Rs1 of the flow rate detection resistance element 17. Further, the resistor 37 that constitutes the second series circuit 40 with the temperature compensation resistance element 18 is, for example, a fixed resistor having a resistance value R2 similar to the resistance value Rs2 of the temperature compensation resistance element 18.

The sensor element 15 is set at a temperature higher than the ambient temperature, and when it receives wind, the temperature of the flow rate detection resistive element 17, which is a heat generating resistor, decreases. Therefore, the potential of the output section 31 of the first series circuit 39 to which the flow rate sensing resistive element 17 is connected varies. As a result, a differential output is obtained by the differential amplifier 43. Then, the feedback circuit 44 applies a drive voltage to the flow rate detection resistive element 17 based on the differential output. Then, based on the change in the voltage required to heat the flow rate sensing resistive element 17, a microcomputer (not shown) can convert and output the wind speed.

Further, the temperature compensation resistance element 18 provided in the sensor element 15 detects the temperature of the fluid itself, and compensates for the influence of temperature changes in the fluid. In this manner, by providing the temperature compensating resistance element 18, it is possible to reduce the influence of fluid temperature changes on flow rate detection, and it is possible to accurately perform flow rate detection. As described above, the temperature compensation resistance element 18 has a sufficiently higher resistance than the flow rate detection resistance element 17, and the temperature is set near the ambient temperature. Therefore, even if the sensor element 15 is exposed to wind, the potential of the output section 32 of the second series circuit 40 to which the temperature compensation resistance element 18 is connected hardly changes. Therefore, using the potential of the output section 32 as a reference potential, a differential output based on the resistance change of the flow rate detection resistive element 17 can be obtained with high accuracy.
Note that the circuit configuration shown in FIG. 6 is an example, and the circuit configuration is not limited thereto.

As described above, since the sensor element 15 becomes hot, the sensor element 15 is placed inside the frame 16 to prevent the operator from directly touching the sensor element 15 to prevent burns or the like.

The number of flow rate sensors 11 shown in FIG. 3 is not limited, and the number of flow rate sensors 11 may be the same as or different from the number of air outlets 5.

In this embodiment, a sensor group 13 can be configured by connecting a plurality of flow rate sensors 11 in a daisy chain.

For example, each flow rate sensor 11 can be connected in a line via the communication cord 19, and the number of sensors in the sensor group 13 can be easily and freely increased.

As shown in FIGS. 3 and 4, each flow rate sensor 11 is arranged at each outlet 5, and the air volume of each outlet 5 can be measured by each flow rate sensor 11. Data from each flow rate sensor 11 is collected in a data collector 12 . The data is then transmitted from the data collector 12 to a receiver 14 such as a notebook computer or a tablet. Although the transmission may be wired or wireless, it is preferable that the transmission be wireless because, for example, the worker can easily hold the receiver 14 in his hand and work freely, improving work efficiency. The wireless method is not limited, and existing methods such as wireless LAN, Bluetooth (registered trademark), Wi-Fi, etc. can be used.

Note that the instruction can also be transmitted from the receiver 14 to the flow rate sensor 11 side via the data collector 12.

In FIG. 4, a plurality of sensor groups 13 are provided, and the data collectors 12 of each sensor group 13 may be connected in a daisy chain. With the configuration shown in FIG. 4, the number of flow rate sensors 11 can be easily increased.

In this embodiment, the air volume status from each outlet 5 can be displayed on the display section 14a of the receiver 14 based on the data transmitted to the receiver 14. The operator can adjust the air volume of each outlet 5 based on the air volume status displayed on the display section 14a and based on the air volume adjustment method described below.

FIG. 5 is a flowchart of the air volume adjustment method according to the present embodiment. In step ST1 shown in FIG. 5, the sensor group 13 shown in FIGS. 3 and 4 is installed so that each flow rate sensor 11 corresponds to the position of each air outlet 5. Note that each flow rate sensor 11 is preferably installed at a location of each outlet 5 where the air volume is the strongest.

In step ST2 of FIG. 5, each flow rate sensor 11 measures the air volume of each outlet 5. For example, after step ST1, the worker launches a dedicated app for air volume measurement and presses the start button of that app, so that the data collector 12 can collect data from each flow rate sensor 11, and the display section 14a The air volume status of each outlet 5 can be displayed. As shown in FIGS. 3 and 4, for example, block-shaped marks 20 indicating each air outlet 5 are displayed on the display section 14a.

Next, in step ST3 of FIG. 5, the first air outlet A to be used as the reference air volume and the second air outlet B to be adjusted to the air volume are selected. As an example, among the marks 20 of the respective air outlets displayed on the display section 14a, the mark 20 of the air outlet with the smallest air volume (hereinafter referred to as the first air outlet A) is lit in blue. The air volume of the first air outlet A is set as the reference air volume, and the air volume of the first air outlet A does not require adjustment. Also, among the air outlets, the mark 20 of the air outlet whose air volume needs to be adjusted is lit in red, and the mark 20 of the air outlet with the largest air volume (hereinafter referred to as the second air outlet B) is illuminated in red. Make it blink. Adjust the air volume of the second air outlet B that flashed in red, and set the air outlet that lit up in red to wait for air volume adjustment.

Here, the air volume adjustment method will be explained using specific air volume values. As shown in FIG. 7, it is assumed that there are four air outlets (1) to (4). The "initial value" indicates the air volume value when the air volume status of each outlet 5 is first checked in step ST2. Here, when the air volume of each outlet 5 was totaled, it was 8. In the air volume adjustment method of this embodiment, the air blower 3 or the damper 4 was used to adjust the total air volume to 10 in the "first adjustment". The "first adjustment" can be performed as necessary.

As mentioned above, since the total air volume is set to 10, the air volume is adjusted so that the air volume of each outlet (1) to (4) becomes 2.5.

As described above, the first air outlet A is the air outlet with the smallest air volume, so the air outlet (1) with an air volume of 1.25 corresponds to the first air outlet A. Therefore, the mark 20 of the air outlet (1) displayed on the display section 14a lights up in blue. Furthermore, since the second outlet B is the outlet with the largest air volume, the outlet (3) with an air volume of 3.75 corresponds to the second outlet B. Therefore, the mark 20 of the air outlet (3) displayed on the display section 14a blinks in red. In FIG. 7, the air volume of the first air outlet A is shown in bold, and the air volume of the second air outlet B is shown in italics.

Next, in step ST4 of FIG. 5, the air volume of the second air outlet B is adjusted so that the air volume of the second air outlet B and the air volume of the first air outlet A are within a predetermined range. In the experiment shown in FIG. 7, the air volume of the second air outlet B was adjusted so that the air volume of the second air outlet B and the air volume of the first air outlet A matched. "Within a predetermined range" refers not only to the case where the air volumes match, but also to the case where the ratio represented by the air volume of the second air outlet B/the air volume of the first air outlet A falls within a certain range.

The operator adjusts the air volume adjustment mechanism 6 of the air outlet (3), which is flashing red on the display 14a, to adjust the air volume of the air outlet (3) to the air volume of the air outlet (1), which is lit blue on the display 14a. It can be adjusted to suit the airflow. Alternatively, the air volume adjustment may be automated.

As described in the "Second Adjustment" column in Figure 7, the air volume of the first air outlet A, which is the air outlet (1), and the air volume of the second air outlet B, which is the air outlet (3) was adjusted to the same value of 1.67. Note that the air volume (minimum air volume) of the first air outlet A is a reference air volume, but by adjusting the air volume of the second air outlet B, the air volume of the first air outlet A also changes. It should be noted that whether or not the air volume of the air outlet (3) matches the air volume of the air outlet (1) can be determined by the numerical value of the air volume value displayed on the display section 14a or by the notation such as "matched". Is possible.

When step ST4 ends, the process moves to step ST5. In step ST5 shown in FIG. 5, step ST3 and step ST4 are repeatedly performed. In other words, as can be seen from the "2nd adjustment" column in Figure 7, the air volume of each outlet (1) to (4) is not 2.5, so all outlets (1) to ( Steps ST3 and ST4 are repeated until the air volume in 4) reaches 2.5. As shown in "Second Adjustment", the air volume of the air outlets (1) and (3) was 1.67, and the air volume of the air outlets (2) and (4) was 3.33. In this way, the air volume of the air outlets (1) and (3) is smaller than that of the air outlets (2) and (4).

Therefore, among the air outlets (1) and (3), the air outlet (1) was selected as the first air outlet A, and among the air outlets (2) and (4), the air outlet (4) was selected as the second air outlet A. Exit B was selected (step ST3). In addition, in this way, if there are multiple air outlets corresponding to the first air outlet A and the second air outlet B, the app automatically changes the air outlet (1) to the first air outlet A. It is possible to select the air outlet (4) and make it turn on in blue, and select the air outlet (4) as the second air outlet B and make it blink in red. Then, the air volume of the air outlet (4) was adjusted so that the air volume of the air outlet (4) matched the air volume of the air outlet (1). As a result, as shown in the "3rd adjustment" column in Figure 7, the air volume of the air outlets (1), (3), and (4) becomes 2.00, and the air volume of the air outlet (B) becomes 4.00. Ta.

Therefore, among the air outlets (1), (3), and (4), the air outlet (3) was selected as the first air outlet A, and the air outlet (2) was selected as the second air outlet B. Then, the air volume of the air outlet (2) was adjusted so that the air volume of the air outlet (2) matched the air volume of the air outlet (3). As a result, as shown in the "4th adjustment" column in FIG. 7, the air volumes of the air outlets (1) to (4) all became 2.50.

As a result of the above, the air volume of all the air outlets (1) to (4) has fallen within the predetermined range (step ST6 in FIG. 5), so the air volume adjustment is ended (step ST7).

In FIG. 7, the minimum air volume is set as the standard air volume, the outlet showing the minimum air volume is set to the first air outlet A, and the maximum air volume is set as the adjusted air volume, the air outlet showing the maximum air volume is set to the second air outlet. Although it is set to B, the opposite may be used. In other words, the maximum air volume is set as the standard air volume, and the outlet showing the maximum air volume is set to the first air outlet A, and the minimum air volume is set as the adjusted air volume, and the air outlet showing the minimum air volume is set to the second air outlet B. Can be set. FIG. 8 shows an example in which the air volume is adjusted using the maximum air volume as the reference air volume and the minimum air volume as the adjusted air volume.

In FIG. 8, since the initial value total was 9.75, first, as a "first adjustment", an air blower or damper was used to adjust the total air volume to 10.

In FIG. 8, at the end of the "first adjustment", the air volume of the outlet (2) was the largest at 2.82, so the outlet (2) was selected as the first outlet A. Moreover, since the air volume of the air outlet (4) was the smallest at 2.21, the air outlet (4) was selected as the second air outlet B (step ST3 in FIG. 5). In FIG. 8, the air volume of the first air outlet A is shown in bold, and the air volume of the second air outlet B is shown in italics.

Next, the air volume of the second air outlet B is adjusted so that the air volume of the second air outlet B and the air volume of the first air outlet A are within a predetermined range (step ST4 in FIG. 5). As described in the "2nd adjustment" column in Figure 8, the air volume of the air outlet (4) was adjusted so that the air volume of the air outlet (4) matched the air volume of the air outlet (2). . As a result, the air volumes of the air outlets (2) and (4) were the same, 2.35.

Next, at the end of the "second adjustment", the outlet (3) with the largest air volume is selected as the first outlet A, and the outlet (2) with the smallest air volume (4) is selected as the first outlet A. 4) was selected as the second outlet B. Then, the air volume of the air outlet (4) was adjusted so that the air volume of the air outlet (4) matched the air volume of the air outlet (3). As a result, as shown in the "3rd adjustment" column in Figure 8, the air volume of the air outlets (2), (3), and (4) becomes 2.47, and the air volume of the air outlet (1) becomes 2.59. Ta.

Therefore, among the air outlets (2), (3), and (4), the air outlet (3) was selected as the second air outlet B, and the air outlet (1) was selected as the first air outlet A. Then, the air volume of the air outlet (3) was adjusted so that the air volume of the air outlet (3) matched the air volume of the air outlet (1). As a result, as shown in the "4th adjustment" column of FIG. 8, the air volumes of the air outlets (1) to (4) all became 2.50.

As a result of the above, the air volume of all the air outlets (1) to (4) has fallen within the predetermined range (step ST6 in FIG. 5), so the air volume adjustment is ended (step ST7).

Here, an example of a conventional air volume adjustment method will be shown. As shown in FIG. 9, the initial value was 8 in total, so as a "first adjustment", an air blower or damper was used to adjust the total air volume to 10. Therefore, the air volume is adjusted so that the air volume of each outlet becomes 2.5.

Next, the air volume of the outlet with the largest air volume was adjusted to 2.50. At the end of the "first adjustment," the air outlet (3) had the largest air volume, so the air volume of the air outlet (3) was adjusted to 2.50. The air volume of the air outlet for air volume adjustment is shown in italics.

At the end of the "second adjustment", the air volume of the air outlet (3) was 2.50, but the air volume of the air outlet (2) and (4) was the largest at 3.00. The outlet (4) was adjusted to 2.50.

In this way, adjustments were made repeatedly one by one so that the air volume of the outlet with the largest air volume was 2.50. As shown in FIG. 9, at the "20th adjustment", the air volume of all the air outlets was 2.50.

In the examples shown in Figs. 7 and 8, adjustments were made four times (the first adjustment is for the total air volume, so excluding this, there are three adjustments), but in the conventional example shown in Fig. 9, adjustments were made 20 times. Adjustment (the first adjustment is the adjustment of the total air volume, so excluding this, 19 adjustments) were required, and the number of adjustments was approximately 5 to 7 times as many as in the example. In the above experiment, the number of air outlets was four, but as the number of air outlets increases further, the difference in the number of inspections will further widen. As a result, by applying the air volume adjustment method of this embodiment, the time required for the work can be shortened, and the work burden can be reduced.

The air volume adjustment method of this embodiment includes the following steps.
(a) First step of arranging the flow rate sensor 11 at each outlet 5 (step ST1 in FIG. 5)
(b) A second step of collecting data from each flow sensor 11 and transmitting each data to the receiver 14 (step ST2 in FIG. 5)
(c) A third step of selecting the first outlet A to be the reference air volume among the plurality of outlets and selecting the second outlet B to adjust the air volume based on the data of each flow rate sensor 11. (Step ST3 in Figure 5)
(d) Fourth step of adjusting the air volume of the second air outlet B so that the air volume from the second air outlet B matches the air volume of the first air outlet A (step ST4 in FIG. 5)
(e) Fifth step (step ST5 in FIG. 5) in which the above (c) and (d) are repeated until the air volume from each outlet 5 falls within a predetermined range.

In the air volume adjustment method of this embodiment, a flow rate sensor 11 is arranged at each air outlet 5, and a first air outlet A is used as an air volume reference, and a second air outlet B is selected to adjust the air volume. However, the characteristic part is that the air volume of the second air outlet B is adjusted so that the air volume of the second air outlet B matches the air volume of the first air outlet A, and such air volume adjustment is repeated. There is. As a result, the number of times the air volume is adjusted can be reduced compared to the conventional method, the working time can be shortened, and the working efficiency can be improved.

In this embodiment, as shown in (a) above, when arranging the flow rate sensor 11 at each outlet 5, the communication cords are individually connected to each flow rate sensor 11 without connecting the flow rate sensors 11 in a chain. You can pull it out and connect it to the data collector, but as the number of flow rate sensors 11 increases, the number of communication cords also increases, and the cords may get tangled with each other, or the communication cords may get in the way, making it difficult to connect each flow rate sensor 11. A problem arises in that it is difficult to install each outlet 5. Therefore, as shown in FIGS. 3 and 4, by using a sensor group 13 in which a plurality of flow rate sensors 11 are connected in a daisy chain, the communication cords 19 become tangled and get in the way of installing the flow rate sensors 11. Problems such as sagging are less likely to occur, and each flow rate sensor 11 can be easily and appropriately arranged with respect to the plurality of air outlets 5, and work efficiency can be improved.

Hereinafter, although not limited to this, when the air volume adjustment of each air outlet 5 in step ST7 shown in FIG. 5 is completed, a button to end the air volume measurement using the dedicated application is pressed. As a result, the dedicated app enters the overall air volume adjustment mode and switches to the overall air volume adjustment state. When the operator inputs the target air volume and clicks on the adjustment start button, each mark 20 of all the air outlets 5 displayed on the display section 14a blinks in blue, and the entire air volume adjustment mode is entered.

In the air conditioner 1, a damper 4 adjusts the overall air volume. When the target air volume is reached, the marks 20 of all the air outlets 5 displayed on the display section 14a change to light blue, and the adjustment of the overall air volume is completed.

In order to apply the above-described air volume adjustment method, the air volume detection device 10 of the present embodiment includes a plurality of flow rate sensors 11 connected in a daisy chain, and a data collector 12 that collects data from each flow rate sensor. a group 13 and a receiver 14 for receiving data from the data collector 12. The plurality of flow rate sensors 11 are arranged so as to be aligned with the plurality of air outlets 5 as targets for air volume adjustment.

In the present embodiment, the sensor group 13 connects each flow rate sensor 11 in a daisy chain, so that the data of each flow rate sensor 11 can be appropriately collected in the data collector 12 via the communication cord 19. can. Therefore, as shown in FIGS. 3 and 4, by placing the sensor group 13 over the air outlet 5, each flow rate sensor 11 can be easily placed on each air outlet 5, and after placement, the display section 14a By adjusting the air volume of the flashing red outlet displayed on the screen to match the air volume of the air outlet that is lit blue, the air volume of each outlet can be kept within the specified range with a moderate number of times. . Therefore, the operator can appropriately and easily perform each step from (a) to (e) above, and since the communication cord 19 is not branched, the communication cord 19 is not tangled or tangled. It is less likely to interfere with the installation of the flow rate sensor 11, and work efficiency can be improved.

The air volume adjustment method of the present embodiment is preferably applied to applications where there are a plurality of air outlets 5 and where the air volume of each air outlet 5 is to be constant, regardless of whether the air volume is indoors or outdoors. It can be suitably used in applications where an air outlet 5 is provided at the foot of each seat, such as a multi-purpose room.

In the above embodiment, a structure in which a plurality of flow rate sensors 11 are connected in a chain is illustrated, but the structure is not limited to this, and for example, a star structure in which a plurality of flow rate sensors 11 are directly connected to the receiver 14 is illustrated. It may be a type connection. However, it is preferable to connect the plurality of flow rate sensors 11 in a chain so that the sensor group 13 can be aligned so that each flow rate sensor 11 and each air outlet 5 coincide with each other.

As explained above, in the air volume adjustment method of the present invention, it is possible to easily and appropriately adjust the air volume of a plurality of outlets using, for example, an air volume inspection device having a plurality of flow rate sensors connected in a chain. It is.

1: Air conditioning equipment 2: Chamber 3: Air blower 4: Damper 5: Air outlet 6: Air volume adjustment mechanism 10: Air volume detection device 11: Flow rate sensor 12: Data collector 13: Sensor group 14: Receiver 14a: Display section 15 : Sensor element 16 : Frame 17 : Flow rate detection resistance element 18 : Temperature compensation resistance element 19 : Communication cord 20 : Mark 38 : Bridge circuit 43 : Differential amplifier 44 : Feedback circuit

Claims (2)

An air volume adjustment method for adjusting the air volume blown out from a plurality of air outlets, the method comprising:
A first step of arranging a flow rate sensor at each outlet;
a second step of collecting data for each flow sensor and transmitting each data to a receiver;
a third step of selecting a first outlet to be used as a reference air volume among the plurality of outlets, and selecting a second outlet to adjust the air volume, based on data from each flow rate sensor;
a fourth step of adjusting the air volume of the second air outlet so that the air volume from the second air outlet matches the air volume of the first air outlet;
a fifth step of repeating the third step and the fourth step until the air volume from each outlet falls within a predetermined range;
has
In the third step, an outlet exhibiting a minimum air volume is selected as the first outlet, and an outlet exhibiting a maximum air volume is selected as the second outlet, or the first outlet An air volume adjustment method comprising: selecting an air outlet exhibiting a maximum air volume as the second air outlet; and selecting an air outlet exhibiting a minimum air volume as the second air outlet. In the first step, a sensor group including a plurality of flow rate sensors connected in a daisy chain and a data collector that collects the output of each flow rate sensor is arranged so that each flow rate sensor and each outlet are aligned. ,
2. The air volume adjustment method according to claim 1 , wherein in the second step, each data is transmitted from the data collector to the receiver side.

Images