Differential pressure check method and differential pressure check program

Abstract

To provide a differential pressure checking method capable of easily and appropriately coping with a case when check object chambers in different floors exist, and to provide a program for realizing the differential pressure checking method.SOLUTION: A differential pressure checking method checks a differential pressure by separately measuring atmospheric pressures in an outdoor reference point and in the inside of a check object chamber by a portable measuring device, grasps atmospheric pressure data (reference atmospheric pressure data) in the reference point, grasps temperature data (reference temperature data) of the reference point and grasps atmospheric pressure data (indoor atmospheric pressure data) within the chamber, grasps elevation difference data between the reference point and a measurement point in the check object chamber, corrects the reference atmospheric pressure data to an atmospheric pressure at the same height as the measurement point on the basis of the reference temperature data and the elevation difference data and grasps corrected reference atmospheric pressure data, and compares the corrected reference atmospheric pressure data with the indoor atmospheric pressure data and checks a differential pressure.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a method for checking the differential pressure between a reference air pressure (outdoor air pressure) of a room subject to differential pressure check and the indoor air pressure, and a program for causing a computer to execute the differential pressure check method. [Background technology]

[0002] Conventionally, in facilities such as food factories and hospitals that require indoors to be under positive or negative pressure in order to maintain cleanliness or prevent the leakage of hazardous materials, it is necessary to check the differential pressure between the indoor and outdoor spaces. A differential pressure gauge is installed in the room to be checked, and the outdoor air pressure (reference air pressure) and indoor air pressure are measured simultaneously via a tube or the like to check the differential pressure.

[0003] However, installing differential pressure gauges in all rooms to be checked is extremely costly, and if the cost cannot be covered, differential pressure gauges can only be installed in some of the rooms, resulting in rooms in which the differential pressure cannot be checked properly.

[0004] Therefore, as shown in Patent Document 1 below, a differential pressure check method has been developed in which a portable differential pressure gauge is used to measure the reference air pressure and the indoor air pressure by going back and forth between the outside and the inside of the room to be checked. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 6-58833 Summary of the Invention [Problem to be solved by the invention]

[0006] According to the differential pressure check method of Patent Document 1, differential pressure checks can be easily performed by carrying a differential pressure gauge to each chamber to be checked and measuring the pressure without installing a differential pressure gauge in each chamber to be checked.

[0007] In addition, the differential pressure check method of Patent Document 1 can check the differential pressure taking into account changes in air pressure due to temperature by obtaining data relating to the temperatures inside and outside the room to be checked.

[0008] However, the differential pressure check method of Patent Document 1 mentioned above has the problem that it cannot properly deal with cases where all rooms to be checked are not at the same floor height (same level), for example, when there are rooms to be checked on different floors, or that it requires the complicated step of setting up a reference point on each floor and measuring the reference air pressure. [Means for solving the problem]

[0009] The present invention provides a differential pressure checking method that effectively solves the problems inherent in the above-mentioned conventional differential pressure checking methods, and a program for implementing the differential pressure checking method.

[0010] In short, the differential pressure check method according to the present invention is a portable Single Measuring equipment That is, a measuring device that can move between the inside and outside of the room to be checked together with the user. This is a method for checking the differential pressure by separately measuring the air pressure inside and at a reference point outside the room to be checked, and is characterized by having the following steps A to F.

[0011] A: Understand the atmospheric pressure data (reference atmospheric pressure data) at the reference point. B: Understand the temperature data of the above reference points (reference temperature data), C: Obtain the indoor air pressure data (indoor air pressure data) D: Obtain the elevation difference data between the reference point and the measurement point in the room to be checked. E: Correct the reference atmospheric pressure data to atmospheric pressure at the same height as the measurement point based on the reference temperature data and the elevation difference data, and obtain corrected reference atmospheric pressure data. F: Compare the calibrated reference air pressure data with the indoor air pressure data to check the differential pressure.

[0012] Preferably, a portable terminal equipped with an air pressure measuring means and an air temperature measuring means is used as the measuring device, so that each step can be carried out smoothly.

[0013] The differential pressure check program according to the present invention is also a portable Single Measuring equipment That is, a measuring device that can move between the inside and outside of the room to be checked together with the user. Check the differential pressure based on the data on the air pressure inside and outside the room measured separately by for causing a computer to execute the method A program, The method for checking the differential pressure is as follows: The method is characterized by comprising the following steps A to F: method is.

[0014] A: Understand the atmospheric pressure data (reference atmospheric pressure data) at the reference point. B: Understand the temperature data of the above reference points (reference temperature data), C: Obtain the indoor air pressure data (indoor air pressure data) D: Obtain the elevation difference data between the reference point and the measurement point in the room to be checked. E: Correct the reference atmospheric pressure data to atmospheric pressure at the same height as the measurement point based on the reference temperature data and the elevation difference data, and obtain corrected reference atmospheric pressure data. F: Compare the calibrated reference air pressure data with the indoor air pressure data to check the differential pressure. [Effects of the Invention]

[0015] According to the differential pressure check method of the present invention, even if there are multiple rooms to be checked and the rooms are located at different heights, as long as the data on the air pressure and temperature at one reference point and the difference in elevation between the reference point and the measurement point are known, it is possible to easily and appropriately check the differential pressure in each room to be checked. Therefore, for example, even if there are rooms to be checked on different floors in a multi-story facility, it is possible to easily and appropriately check the differential pressure in each room to be checked.

[0016] Furthermore, the differential pressure check program according to the present invention can cause a computer to appropriately execute the differential pressure check method according to the present invention described above. [Brief explanation of the drawings]

[0017] [Figure 1] This is an overhead view showing the rooms to be checked and reference points within the facility. [Figure 2] FIG. 2 is a flowchart showing the flow of a differential pressure check method according to the present invention. [Figure 3] FIG. 1 is a diagram illustrating the configuration of a measurement device. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, a best embodiment of a differential pressure check method and a differential pressure check program according to the present invention will be described with reference to FIGS.

[0019] The present invention relates to a portable measuring device, i.e., a measuring device that can be moved between the inside and outside of the room to be checked together with the user, and a method for checking the differential pressure by separately measuring the air pressure at a reference point outside the room to be checked and the air pressure inside the room.

[0020] For example, as shown in Figure 1, in a facility F having multiple floors (levels), if there are rooms R1, R2, and R3 to be checked for differential pressure, the air pressure is measured while moving the measuring device to the reference point P0, measurement point P1 of the room R1 to be checked, measurement point P2 of the room R2 to be checked, and measurement point P3 of the room R3 to be checked, and the differential pressure of each room R1, R2, or R3 to be checked is checked.

[0021] 2, the specific flow is as follows: first, the user moves to the reference point P0 with the measurement device, measures the air pressure to obtain the air pressure data (reference air pressure data) at the reference point P0 (Step A), and measures the air temperature to obtain the air temperature data (reference air temperature data) at the reference point P0 (Step B). Note that, as will be described later, it is optional to obtain the elevation data of the reference point, depending on the implementation.

[0022] Next, as shown in FIG. 2, the user moves to the measurement point P1 in the check target room R1 together with the measurement device, measures the air pressure, and obtains the air pressure data (room air pressure data) in the check target room R1 (Step C).

[0023] The elevation difference data between the reference point P0 and the measurement point P1 in the room R1 is then either confirmed in advance or calculated from the measured altitude data of the reference point P0 and the altitude data of the measurement point P1 (Step D). The reference air pressure data obtained in Step A is then corrected to the air pressure at the same altitude as the measurement point P1 based on the reference temperature data and the elevation difference data to obtain the corrected reference air pressure data (Step E). In other words, the reference air pressure data is corrected to the air pressure at the same altitude as the measurement point P1 using a known sea level corrected air pressure calculation formula to obtain the corrected reference air pressure data. Note that the elevation difference data does not fluctuate dramatically, so it may be confirmed in advance when the measurement point P1 is determined, or it may be calculated by determining the elevation data of the reference point P0 and the measurement point P1. The same applies to the elevation difference data from the reference point P0 at each of the measurement points P2 and P3 described below.

[0024] Furthermore, when the differential pressures of the check target chambers R2 and R3 are also checked, the above-described steps C to E are carried out in each of the check target chambers R2 and R3.

[0025] In other words, the user moves to the measurement point P2 of the room R2 to be checked with the measuring device, measures the air pressure to obtain the indoor air pressure data of the room R2 to be checked (Step C), and obtains the elevation difference data between the reference point P0 and the measurement point P2, which has been confirmed in advance or calculated from the elevation data of the reference point P0 and the measurement point P2 (Step D).The user also corrects the reference air pressure data to the air pressure at the same height as the measurement point P2 based on the reference temperature data and the elevation difference data, and obtains the corrected reference air pressure data (Step E).

[0026] Similarly, the user moves to the measurement point P3 of the room R3 to be checked with the measuring device, measures the air pressure, and obtains the indoor air pressure data of the room R3 to be checked (Step C). The user then obtains the elevation difference data between the reference point P0 and the measurement point P3, either confirmed in advance or calculated from the elevation data of the reference point P0 and the measurement point P3 (Step D). The user also corrects the reference air pressure data to the air pressure at the same height as the measurement point P3 based on the reference temperature data and the elevation difference data, and obtains the corrected reference air pressure data (Step E).

[0027] Finally, the respective calibrated reference air pressure data obtained in step E is compared with the respective indoor air pressure data obtained in step C to check the differential pressure state in each check target room R1, R2 or R3 (step F).

[0028] Therefore, according to the differential pressure check method of the present invention, even if there are multiple rooms to be checked and the rooms are located at different floor heights (levels), as long as the air pressure, temperature, and altitude data for one reference point are known, it is possible to easily and appropriately check the differential pressure of each room to be checked. Therefore, for example, as shown in Figure 1, even if there are rooms R1, R2, and R3 to be checked on different floors in a multi-story facility F, it is possible to easily and appropriately check the differential pressure of each room to be checked.

[0029] In the differential pressure check method according to the present invention, each step can be performed smoothly by using a mobile terminal, preferably equipped with an air pressure measuring means and an air temperature measuring means, as the measuring device. The mobile terminal can be a smartphone or a tablet-type mobile terminal, or any other relatively small and portable computer with a communication function.

[0030] To explain the measurement device in more detail, as shown in Figure 3, the measurement device 1 is equipped with various measurement means, namely an atmospheric pressure sensor unit 2 (atmospheric pressure measurement means), an air temperature sensor unit 3 (air temperature measurement means), and an altitude sensor unit 4 (altitude measurement means). Of these, the altitude sensor unit 4 may be omitted, as the altitude of the reference point and the measurement points in each room to be checked, as well as the difference in elevation between the reference point and each measurement point, can be known in advance.

[0031] As shown in FIG. 3, the measuring device 1 includes a control unit 5, a monitor unit 6 that displays the differential pressure judgment results obtained by the control unit 5, and an input unit 7 that inputs altitude data, etc. The control unit 5 includes a memory unit 5a that stores various data and calculation formulas, etc., and a calculation unit 5b that performs calculations using data called up from the memory unit 5a.

[0032] The differential pressure check program according to the present invention is executed by the control unit 5 while utilizing each component of the measurement device 1, thereby realizing the differential pressure check method according to the present invention.

[0033] 1 and 2, at reference point P0, control unit 5 obtains reference atmospheric pressure data from atmospheric pressure sensor unit 2 (step A), obtains reference temperature data from temperature sensor unit 3 (step B), and, if necessary, obtains altitude data of the reference point from altitude sensor unit 4 or input unit 7. Various data are displayed on monitor unit 6 as necessary and stored in memory unit 5a.

[0034] Next, at measurement point P1 in check target room R1, control unit 5 obtains indoor air pressure data from air pressure sensor unit 2 (Step C) and, if necessary, altitude data from altitude sensor unit 4 or input unit 7. Furthermore, elevation difference data between reference point P0 and measurement point P1 is obtained by checking the elevation data of reference point P0 in advance or calculating the elevation data of measurement point P1 (Step D). Based on the reference temperature data and elevation difference data, the reference air pressure data is corrected to the air pressure at the same altitude as measurement point P1, and corrected reference air pressure data is obtained (Step E). Similarly, steps C through E are performed at measurement point P2 in check target room R2 and measurement point P3 in check target room R3, and corrected reference air pressure data for measurement points P2 and P3 are obtained. In these cases, various data is also displayed on monitor unit 6 as needed and stored in memory unit 5a.

[0035] The calculation unit 5b of the control unit 5 retrieves the calibrated reference air pressure data and the indoor air pressure data of each of the check target rooms R1, R2, and R3 from the storage unit 5a, compares them, and checks the differential pressure state (step F).

[0036] As described above, according to the differential pressure check method of the present invention, even if there are multiple rooms to be checked and the rooms are at different floor heights (levels), as long as the air pressure, temperature, and elevation difference data between the reference point and the measurement point at one reference point are known, differential pressure checks of each room to be checked can be performed easily and appropriately.

[0037] Furthermore, the differential pressure check program according to the present invention can cause a computer to appropriately execute the differential pressure check method according to the present invention described above. [Explanation of symbols]

[0038] 1...measuring device, 2...barometric pressure sensor section (barometric pressure measuring means), 3...air temperature sensor section (air temperature measuring means), 4...altitude sensor section (altitude measuring means), 5...control section, 5a...memory section, 5b...calculation section, 6...monitor section, 7...input section, F...facility, R1, R2, R3...room to be checked, P0...reference point, P1, P2, P3...measurement points within the room to be checked.

Claims

1. A method for checking differential pressure by separately measuring the air pressure at a reference point outside a room to be checked and the air pressure inside the room using a single portable measuring device, i.e., a measuring device that can be moved between the inside and outside of the room to be checked together with a user, the method comprising the following steps A to F: A: Obtain the atmospheric pressure data (reference atmospheric pressure data) of the reference point. B: Understand the temperature data (reference temperature data) of the above reference points. C: Obtaining the indoor air pressure data (indoor air pressure data), D: Determine the elevation difference data between the reference point and the measurement point in the room to be checked. E: Correct the reference atmospheric pressure data to atmospheric pressure at the same height as the measurement point based on the reference temperature data and the elevation difference data, and obtain corrected reference atmospheric pressure data. F: Compare the calibrated reference atmospheric pressure data with the indoor atmospheric pressure data to check the differential pressure.

2. 2. The differential pressure checking method according to claim 1, wherein the measuring device is a portable terminal equipped with an air pressure measuring means and an air temperature measuring means.

3. A program for causing a computer to execute a method for checking a differential pressure based on data relating to the air pressure inside and at a reference point outside a room to be checked, which data are separately measured using a single portable measuring device, i.e., a measuring device that can be moved between the inside and outside of the room to be checked together with a user, the method for checking the differential pressure being a method characterized by comprising the following steps A to F: A: Obtain the atmospheric pressure data (reference atmospheric pressure data) of the reference point. B: Understand the temperature data (reference temperature data) of the above reference points. C: Obtaining the indoor air pressure data (indoor air pressure data), D: Determine the elevation difference data between the reference point and the measurement point in the room to be checked. E: Correct the reference atmospheric pressure data to atmospheric pressure at the same height as the measurement point based on the reference temperature data and the elevation difference data, and obtain corrected reference atmospheric pressure data. F: Compare the calibrated reference atmospheric pressure data with the indoor atmospheric pressure data to check the differential pressure.

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