Water supply device construction application support system

Abstract

To provide an application support system for a water supply device construction or the like in which a work relating to application of a water supply device construction or the like can be reduced for both a constructor and a person in charge in a department in charge.SOLUTION: A support system that supports application relating to water supply device construction includes an application device and an examination device. The application device includes: a description information acquisition unit that obtains description information relating to an item to be described in the application; an application information setting unit that sets application information to be applied to the examination device in the application, based on the description information obtained by the description information acquisition unit; an application information output unit that outputs the application information set by the application information setting unit; and a communication unit that communicates with the examination device. The examination device includes: an examination unit that performs examination based on both an examination criterion relating to examination of a water supply device construction or the like and the application information which is output from the application information output unit; an examination result output unit that outputs a result of the examination by the examination unit; and a communication unit that communicates with the application device.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an application support system for water supply device construction work.

Background Art

[0002] When performing new construction work, renovation work, removal work, repair work of a water supply device, or prior consultation with a water utility before construction (hereinafter sometimes referred to as "construction work of a water supply device, etc."), it may be necessary to apply to the responsible department of a water utility such as a local government (hereinafter sometimes referred to as the "responsible department") for the construction work of the water supply device, etc. Specifically, when a designated water supply device construction contractor, etc. (hereinafter sometimes referred to as a "construction contractor") performs construction work of a water supply device, etc., before performing the construction work, documents necessary for the application related to the construction work of the water supply device, etc. are created, and the documents necessary for the application are brought to obtain permission for the construction work of the water supply device, etc., and the construction work, etc. is applied to the responsible department. Note that the documents necessary for the application may include documents necessary for prior consultation.

[0003] The responsible department visually examines the documents necessary for the application to obtain permission for the submitted construction work of the water supply device, etc., conducts a review to determine whether it meets the passing standards of the water utility, and notifies the construction contractor of the review results.

[0004] If the construction contractor can obtain permission for the construction based on the review results of the responsible department, the construction work can be entrusted to the construction company. However, if permission for the construction cannot be obtained, it is necessary to correct the application documents related to the construction work of the water supply device, etc., bring the corrected documents, and go to the responsible department to apply for the construction work, etc. again. Examples of the documents necessary for the application include an application form for new construction work of a water supply device, an application form for construction of new construction work of a water supply device, an application form for design review of water supply device construction work, etc. Patent Document 1 discloses a system that utilizes BIM (Building Information Modeling) data for the design of a water supply pipe in order to support the design of the water supply pipe.

Prior Art Documents

Patent Documents

[0005] Patent Document 1 Japanese Patent Application Laid-Open No. 2022-138509 Summary of the Invention Problems to be Solved by the Invention

[0006] According to the system described in the above Patent Document 1, the design of the water supply pipe can be carried out using BIM data. However, for applications such as water supply equipment construction work, the construction contractor needs to bring written documents with printed design drawings and calculations to the responsible department. In addition, the person in charge of the responsible department had to conduct a visual inspection based on the documents submitted by the construction contractor. Therefore, there was a problem in the responsible department that, for example, it took time and was inefficient to check the hydraulic calculation documents submitted on paper.

[0007] The present invention has been made in view of such circumstances, and its object is to provide an application support system for water supply equipment construction work etc. that can reduce the work in the application for water supply equipment construction work etc. for both the construction contractor and the person in charge of the responsible department. Means for Solving the Problems

[0008] In order to solve the above-described problems, an application support system for water supply equipment construction work etc. according to an embodiment of the present invention includes an application device and a review device. The application device includes a description information acquisition unit that acquires description information regarding matters to be described in an application related to water supply equipment construction work etc., and an application information setting unit that sets application information to be applied to the review device in an application related to water supply equipment construction work etc. based on the description information acquired by the description information acquisition unit, an application information output unit that outputs the application information set by the application information setting unit, and a communication unit that communicates with the review device. The review device includes a review unit that conducts a review based on review criteria regarding the review of water supply equipment construction work etc. and the application information output from the application information output unit, a review result output unit that outputs the review result of the review unit, and a communication unit that communicates with the application device. Effects of the Invention

[0009] According to the present invention, it is possible to reduce the labor involved in the application and examination related to the construction of a water supply device and the like.

Brief Description of the Drawings

[0010]

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Modes for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0012] (First Embodiment) (Support System) FIG. 1 is a configuration diagram showing a configuration example of a support system 100 according to a first embodiment. The support system 100 includes an application device 200 and a review device 300. The application device 200 and the review device 300 are communicably connected to each other via a communication network NW, and are configured to be able to exchange data such as application data related to construction of a water supply device and the result of review by the review device 300. The application data is preferably BIM data described later, but is not limited thereto.

[0013] FIG. 2 shows an example in which a plurality of application devices 200 and a plurality of review devices 300 are connected via a communication network NW. In addition to the application device 200 and the review device 300, a construction contractor 205 that performs waterworks and a server device 150 may be connected to the network NW. Hereinafter, each component of the support system 100 will be described.

[0014] (BIM) Water supply design is preferably performed by Building Information Modeling (hereinafter referred to as "BIM"). By performing the water supply design with BIM and making an application for construction of a water supply device or the like using data by BIM (hereinafter referred to as "BIM data"), it is possible to easily make an application for construction of a water supply device or the like and review the application.

[0015] (Application Device 200) The application device 200 is an application-side device for a construction contractor to make an application related to construction of a water supply device or the like. Here, examples of the application related to construction of a water supply device or the like include an application form for new construction of a water supply device, an application form for construction of a new water supply device, an application form for design review of a water supply device construction, and the like. In addition, the application includes a request application for a water pressure survey, etc., which may be performed before the application for construction of a water supply device, and applications and confirmations associated with the construction of a water supply device. Note that the name of the application for water supply device construction or the like may differ depending on the local government or water utility, or the content of the required application may differ. The application for water supply device construction or the like to which this embodiment is applied is not limited to the exemplified applications and contents.

[0016] The application device 200 is typically a personal computer, but may also be a portable information terminal (PDA) such as a smartphone. The application device 200 may be any device that allows a construction contractor to submit an application related to the construction of a water supply device using BIM data.

[0017] The application device 200 is provided with an application communication unit 230 and is configured to be connected to the review device 300 via a communication network NW such as the Internet. The application device 200 includes an application control unit 210, an application input unit 260, an application storage unit 220, an application display unit 240, and an application power supply 250. The application control unit 210 includes a preliminary review unit 213, an application information acquisition unit 211, an application information setting unit 212, an application information output unit 214, and a review result input unit 215.

[0018] (Application Input Unit 260) The application input unit 260 is a device or terminal for inputting data and the like into the application device 200. The application input unit 260 may be a device that can be manually input by a construction contractor who submits an application related to the construction of a water supply device, such as a keyboard, a mouse, or a touch panel. Also, the application input unit 260 may be configured to be inputtable by a recording medium or communication. Examples of the recording medium include an optical disk (e.g., CD-ROM, DVD-ROM) and a semiconductor memory (e.g., USB flash drive, memory card). Note that the application input unit 260 may be used in common with the application communication unit 230 described later.

[0019] Data such as a program of the support system, design data related to the construction of the water supply device, review criteria for review by the preliminary review unit 213 described later, and data necessary for the application are input into the application device 200 by the application input unit 260. Examples of the input data include data for performing hydraulic calculations and BIM data of a building related to water supply construction. Part or all of the input data is configured to be stored in the application storage unit 220 described later.

[0020] (Application Storage Unit 220) The application memory unit 220 can store the data input from the application input unit 260 and the data acquired by the application communication unit 230. In addition, the application memory unit 220 stores a data processing program for operating the application control unit 210 that controls the application device 200. It may store a plurality of data processing programs according to the type of application such as water supply device construction work and the review device 300. The application memory unit 220 may be the server device 150 connected to the application device 200.

[0021] (Application information acquisition unit 211) The application information acquisition unit 211 acquires, via the network NW, information to be described in an application related to construction work of a water supply device or the like from the application memory unit 220 or the review device 300. Based on the application information acquired by the application information acquisition unit 211, the application device 200 can acquire data by BIM data, acquire data from other databases, or input data manually as data necessary for an application related to construction work of a water supply device or the like. The application information acquisition unit 211 can confirm the data necessary for an application related to construction work of a water supply device or the like, and can surely prepare the information necessary for an application related to construction work of a water supply device or the like. The application information setting unit 212 sets information for an application such as water supply device construction work based on the application information acquired by the application information acquisition unit 211. To apply for water supply device construction work or the like, it acquires information to be set from the application memory unit 220, acquires information to be set from the application input unit 260, or performs calculations such as hydraulic calculations.

[0022] (Pre-review unit 213) The pre-review unit 213 performs a pre-review when all the information necessary for an application such as water supply device construction work acquired by the application information acquisition unit 211 is set by the application information setting unit 212.

[0023] (Pre-review unit 213) The pre-review unit 213 performs a pre-review when all the information necessary for an application such as water supply device construction work acquired by the application information acquisition unit 211 is set by the application information setting unit 212.

[0024] The preliminary review is for preliminarily conducting a review before the application device 200 submits an application related to the construction of a water supply device or the like to the review device 300. The application storage unit 220 stores laws and regulations and data (hereinafter referred to as "review criteria") for conducting the preliminary review. The preliminary review unit 213 conducts a preliminary review by referring to the data set by the application information setting unit 212 and the review criteria. The preliminary review unit 213 outputs the result to the application information output unit 214 according to the result of the preliminary review, or re-sets the data again in the application information setting unit 212.

[0025] (Application Information Output Unit 214) The application information output unit 214 outputs the data of the application related to the construction of the water supply device or the like output from the preliminary review unit 213 and the data required for the application related to the construction of other water supply devices or the like to the review device 300 via the application communication unit 230.

[0026] (Application Communication Unit 230) The application communication unit 230 is provided for connecting the application device 200 and the review device 300 via the network NW respectively. The network NW may be an Internet line or a telephone line, and a known line can be adopted.

[0027] (Application Display Unit 240) The application device 200 is equipped with an application display unit 240. The application display unit 240 displays the content of the operation of the application device 200. The application display unit 240 is typically a display, but may also be an acoustic device. The application display unit 240 is configured to display the operation of the application device 200 to the construction contractor by video or sound.

[0028] (Application Power Supply 250) The application device 200 is equipped with an application power supply 250. The application power supply 250 is a power supply for operating the application device 200.

[0029] (Review Device 300) The examination device 300 is a device on the examination side for a water utility company to conduct an examination on an application related to the construction of a water supply device of a construction contractor. The examination device 300 includes an examination communication unit 330 and is configured to be connected to the application device 200 via the network NW.

[0030] The examination device 300 is typically a personal computer, but may also be a portable information terminal (PDA) such as a smartphone. The examination device 300 may be any device that enables the responsible department of the water utility company to examine an application related to the construction of a water supply device of a construction contractor.

[0031] The examination device 300 includes an examination control unit 310, an examination input unit 360, an examination storage unit 320, an examination communication unit 330, an examination display unit 340, and an examination power supply 350. The examination control unit 310 includes an examination unit 311 and an examination result output unit 312. The examination control unit 310 includes an examination unit 311 and an examination result output unit 312.

[0032] (Examination input unit 360) The examination input unit 360 is a device or terminal for inputting data and the like into the examination device 300. The examination input unit 360 may be a device that allows the person in charge of the responsible department to manually input an application related to the construction of a water supply device, such as a keyboard, mouse, or touch panel. Additionally, the examination input unit 360 may be configured to allow input via a recording medium or communication. Examples of the recording medium include optical disks (e.g., CD-ROM, DVD-ROM) and semiconductor memories (e.g., USB flash drives, memory cards). Note that the examination input unit 360 may be used in combination with the examination communication unit 330.

[0033] The examination device 300 has data necessary for the examination, such as an examination program, design data related to the construction of the water supply device, and examination criteria, input by the examination input unit 360. Some or all of the input data is configured to be stored in the examination storage unit 320 described later.

[0034] (Examination result input unit 215) The examination result input unit 215 can receive the examination result from the examination apparatus 300 via the application communication unit 230. The application apparatus 200 may be configured to perform hydraulic calculations again or instruct the constructor to perform construction according to the examination result received by the examination result input unit 215.

[0035] (Examination unit 311) The examination unit 311 is an apparatus that examines an application related to the construction of a water supply apparatus from the application apparatus 200. The examination unit 311 performs the examination with reference to the application content and data such as examination criteria stored in the examination storage unit. Note that the application content includes a hydraulic calculation document and other documents and data necessary for the examination. The application content varies depending on the waterworks operator. Here, it is desirable that the data of the application content and the data such as examination criteria are BIM data or data conforming to BIM data. By performing the design of the waterworks in a BIM model and performing the application and examination related to the construction of the water supply apparatus using BIM data, the administrative burdens on both the application side and the examination side can be reduced.

[0036] (Examination storage unit 320) The examination storage unit 320 is an apparatus that stores information for the examination unit 311 provided in the examination apparatus 300 to perform the examination. The examination storage unit 320 stores data on waterworks-related laws such as waterworks laws, waterworks enforcement orders, and regulations, and other data necessary for applications related to the construction of water supply apparatuses. Further, the content of past applications related to the construction of water supply apparatuses and the results of past examinations may be stored. As the form of the data to be stored, it is desirable to store it in BIM data.

[0037] The examination storage unit 320 stores a data processing program for the operation of the examination control unit 310. The data stored in the examination storage unit 320 may be configured to be appropriately updated via the examination communication unit 330.

[0038] (Examination result output unit 312) The examination result output unit 312 outputs the results of the examination by the examination unit 311 for applications related to the construction of the water supply device, etc. The output of the examination result output unit may be directly notified to the application device 200 via the examination communication unit 330, or the examination results may be displayed on the examination display unit 340, and the person in charge may finally conduct the examination for the application related to the construction of the water supply device, etc.

[0039] (Examination communication unit 330) The examination communication unit 330 is provided to connect the application device 200 and the examination device 300 to each other via the network NW. The network NW may be an Internet line or a telephone line, and a known line can be adopted.

[0040] (Examination power supply 350) The examination device 300 is equipped with an examination power supply 350. The examination power supply 350 is a power supply for operating the examination device 300. It is preferable that the power supply is an uninterruptible power supply so that it can operate even during a disaster.

[0041] (Hydraulic calculation) In the application for the construction of the water supply device, etc., depending on the content of the construction, a hydraulic calculation document may be required. The reasons for the water utility company to require a hydraulic calculation document are mainly to confirm the following three points. Note that the conditions for submitting the hydraulic calculation document and the content of the hydraulic calculation may vary depending on the water utility company. 1. Confirmation of whether the diameter of the water meter (so-called "water supply meter") is appropriate for the planned water consumption 2. Confirmation that the water head of the water distribution pipe branched from the water supply device is greater than the required water head of the water supply device 3. Confirmation that the flow velocity of the water supply device does not exceed 2.0 m / s

[0042] (Regarding the confirmation of whether the diameter of the water meter (which is the so-called "water supply meter") is appropriate for the planned water consumption) Water meters have different flow rate ranges that can be measured depending on their type and structure. In the measurement method, the measurement range of the water meter is determined according to its type. However, the measurement range of the measurement method is only the limit value of measurement. In order to ensure the durability of the water meter and proper measurement, it is necessary to select an appropriate water meter with reference to the criteria for selecting the diameter of the water meter based on the flow rate. For the above reasons, water supply companies determine an appropriate flow rate range according to the type and diameter of the water meter. Water meters include tangent flow impeller type, axial flow impeller type, electromagnetic type, etc., and are selected according to the flow rate and diameter.

[0043] (Planned water consumption) In direct connection water supply, it is necessary to set an appropriate water volume that conforms to the actual situation by fully considering the simultaneous use ratio of water supply appliances for the planned water consumption. The planned water consumption is the basis when planning the main specifications of the water supply system such as the diameter of the water supply pipe and the capacity of the receiving tank, and is determined after considering the use of the building, the purpose of water use, the number of users, the number of water taps, etc. When calculating the planned water consumption, it is necessary to select a method according to the actual use situation based on the characteristics of various calculation elements.

[0044] The planned water consumption is obtained from the simultaneous water consumption. The simultaneous water consumption refers to the water volume flowing through the water supply system when several water supply appliances are used simultaneously among the water supply appliances installed in the water supply system targeted for the water supply installation work. In addition, in water supply construction, the determination of the capacity of the receiving tank, etc. may be based on the planned daily water consumption.

[0045] (Planned water consumption of direct connection booster water supply) When performing direct connection booster water supply, it is necessary to appropriately set the simultaneous water consumption in order to determine an appropriate pipe diameter and an appropriate capacity of the booster device. If the calculation of the simultaneous water consumption is incorrect, there may be problems such as the introduction of excessive equipment, inefficient energy use, and insufficient water supply.

[0046] When calculating the simultaneous water consumption, there are methods such as considering the water discharge volume by type of water supply fixture and its simultaneous usage rate, using a calculation formula to predict the simultaneous water consumption from the number of residents, and referring to the Handbook of Air Conditioning and Sanitary Engineering. It is necessary to appropriately select a method according to the actual usage situation of the water supply facilities.

[0047] (2. Regarding the confirmation that the water head of the water distribution pipe branched from the water supply device is greater than the required water head of the water supply device) If the water head of the water distribution pipe branched from the water supply device is not greater than the required water head of the water supply device, water will not flow out from the water supply device. The required water head of the water supply device needs to ensure a certain margin of water head in addition to the rising height of the water supply device (the difference between the height where the water supply device is installed and the height where the drain pipe is installed) and the loss of water head when water flows through the water supply pipe and other equipment (valves, etc.).

[0048] The loss of water head includes the loss of water head at the inlet and outlet of the pipe, the loss due to pipe friction, the loss due to water meters and water supply fixtures, and the loss due to pipe bends, branches, and cross-sectional changes. Among these, the main ones are the loss of water head due to pipe friction and the loss of water head due to various water supply fixtures. The calculation of the friction loss of the water supply pipe can be calculated by the Weston formula for pipes with a diameter of 50 mm or less, and by the Hazen-Williams formula for pipes with a diameter of 75 mm or more.

[0049] The loss of water head due to various water supply fixtures, etc. is converted into an equivalent straight pipe length. The equivalent straight pipe length refers to the length of a straight pipe that represents how many meters of loss of water head due to faucets, water meters, pipe joints, etc. is equivalent to the loss of water head of a straight pipe of the same diameter.

[0050] (3. Regarding the confirmation that the flow velocity of the water supply device does not exceed 2.0 m / s) Generally, the flow velocity of a water supply device is stipulated by water supply utilities not to exceed 2.0 m / s. For example, if a water faucet is suddenly closed, the water flow may suddenly stop, causing the pressure in the water supply pipe to rise rapidly. When the pressure in the water supply pipe rises rapidly, a water hammer phenomenon (noise or damage to the water supply pipe) may occur. To prevent such a phenomenon, it is necessary to ensure that the flow velocity does not become too fast at the design stage of the water supply device. It is preferable to create a hydraulic calculation document that clearly shows that the flow velocity of the water supply device is within a predetermined range.

[0051] (Example of hydraulic calculation) As described above, it can be said that hydraulic calculation is one of the important items in the design of water supply facilities and applications for water supply device construction, etc. Hereinafter, as an example of hydraulic calculation, for the design of a booster device in a 9-story apartment building with 19 households, an example of a hydraulic calculation document, an example of a dynamic water gradient diagram, and an example of an isometric diagram will be shown. Figure 3 is a dynamic water gradient diagram in the direct-connected booster water supply method for the corresponding equipment. This dynamic water gradient diagram can be easily created based on BIM data, enabling designers and others to easily grasp the overview of the equipment visually. (1. Calculation of water supply volume) In this calculation example, an example based on the formula for predicting the simultaneous water consumption from the number of households is shown. Note that the calculation of the water supply volume can also be performed by other methods, and this calculation example does not specify the scope of the rights of the present invention. Figure 4 (Hydraulic calculation document 1) shows an example of the calculation of the water supply volume in the hydraulic calculation document.

[0052] The formula for predicting the simultaneous water consumption when the number of households N is 10 < N < 600 is as follows. Q: Simultaneous water consumption (L / min), N: Number of households Q = 42N^0.67 (L / min) Note that the formula can be appropriately referred to from the "Standard Plan and Construction Method of Water Supply Devices" (Ministry of Health, Labour and Welfare Water Supply Device Database), etc. In the method of calculating the simultaneous water consumption from the "number of households", the simultaneous water consumption can be calculated simply by applying the number of households to the formula. Number of water supply households (N) = 19 Using the formula Q = 42N^0.33 (L / min), Q = 42 × 19^0.67 (L / min) = 136.6 (L / min) ≈ 137 (L / min) it can be calculated as follows.

[0053] (2. Calculation of total head) An example of calculating the total head of the booster is shown. The total head of the booster can be calculated from the pressure on the suction side (primary side) of the pump (hereinafter also simply referred to as "pump") used in the booster and the pressure on the discharge side (secondary side) of the pump. The calculation of the total head will be described while referring to Fig. 3 (dynamic water gradient diagram) and Fig. 5 (hydraulic calculation sheet 2).

[0054] Calculation on the suction side (primary side) of the pump 510 The pressures and pressure losses at each point on the suction side of the pump in Fig. 3 (dynamic water gradient diagram) are as follows.

[0055] Pa: Minimum dynamic water pressure of the water distribution pipe connected to the waterworks The minimum dynamic water pressure of the water distribution pipe connected to the waterworks is stipulated by law (ordinance specifying the technical standards for waterworks facilities) as "the minimum dynamic water pressure of the water distribution pipe at the point where it branches from the water distribution pipe to the water supply pipe shall not be less than 150 kilopascals". Here, the calculated value of the minimum dynamic water pressure of the water distribution pipe connected to the waterworks can be, for example, 15.0 m according to the specification of the waterworks operator. Since the minimum dynamic water pressure of the water distribution pipe varies depending on the waterworks operator, it is possible to inquire with the waterworks operator before the hydraulic calculation, and it is preferable to inquire with the waterworks operator before the hydraulic calculation for the hydraulic calculation by this support system.

[0056] P1s: Pressure loss due to elevation difference (pressure loss due to the elevation difference between the water distribution pipe and the booster) When supplying water from a lower place to a higher place, pressure loss occurs due to the elevation difference. Based on the difference in the vertical distance between the location where the water supply pipe branches from the water distribution pipe to the water supply facility and the location where the pressure boosting device is installed, the pressure loss due to the elevation difference is set.

[0057] P2s: Friction and pressure loss of the water supply pipe (including pressure loss due to joints and valves) The friction loss of the pipe refers to the friction loss generated when water flows through the pipe, joints, and valves. An example of a hydraulic calculation sheet for calculating the friction loss of the pipe is shown in Fig. 6 (Hydraulic Calculation Sheet 3). According to the hydraulic calculation sheet 600 shown in Fig. 6,

[0058] P3: Pressure loss due to the flowmeter When water flows through the flowmeter, pressure loss occurs. The relationship between the pressure loss of the flowmeter and the flow rate can be obtained from pre-measured data, the catalog of the flowmeter, etc. In this example, an example where the flowmeter is not installed is shown, and the pressure loss due to the flowmeter does not occur.

[0059] P4: Pressure loss of the backflow preventer A pressure-reducing type backflow preventer is installed on the suction side (primary side) of the pressure boosting device. The pressure The relationship between the loss and the flow rate can be obtained from pre-measured data, the catalog of the flowmeter, etc.

[0060] P0: Effective pressure on the suction side of the pump (input pressure to the pump) The effective pressure P0 on the suction side of the pump, which is the primary side pressure of the pump, is the value obtained by subtracting the pressure loss from the minimum dynamic water pressure Pa at the location where the water distribution pipe branches to the water supply pipe. Then, P0 = Pa - (P1s + P2s + P3 + P4) It can be calculated by the formula.

[0061] Calculation on the discharge side of the pump An example of calculating the boosting pressure required for the pressure boosting device (pump) to supply water at the minimum dynamic water pressure at the end or the highest position in the water supply device is shown.

[0062] P1: Pressure loss due to elevation difference (elevation difference between the pressure boosting device and the highest water supply fixture) Pressure loss occurs due to the elevation difference between the outlet of the pressure boosting device and the highest water supply fixture of the water supply device. The loss is set based on the difference in the vertical distance between the outlet of the pressure boosting device and the highest water supply fixture of the water supply device.

[0063] P2: Friction and pressure loss of the water supply pipe (including pressure loss due to joints and valves) The friction loss of the pipe refers to the friction losses of the pipe, joints, and valves. An example of the calculation of the friction loss of the pipe is shown in the hydraulic calculation sheet 4. P5: Minimum dynamic water pressure at the end or highest position in the water supply device To allow water to flow out of the water supply device, a predetermined water pressure is required. Here, it is necessary to set the minimum dynamic water pressure as the said predetermined water pressure.

[0064] Pout: Pressure at the outlet of the pressure boosting device To supply water from the highest water supply fixture of the water supply device with a predetermined minimum dynamic water pressure, the required pressure Pout at the outlet of the pressure boosting device is obtained by the following formula. Pout = P1 + P2 + P5

[0065] Total head 530 (pressure increase required for the pressure boosting device) To supply water from the water supplied by the water distribution pipe from the highest water supply fixture of the water supply device with a predetermined minimum dynamic water pressure, it is necessary to increase the water supply pressure by the pressure boosting device. The required pressure increase PP (total head 530) by the pressure boosting device is obtained by the following formula. PP = Pout - P0 = P1 + P1S + P2 + P2S + P3 + P4 + P5 - Pa

[0066] (3. Calculation of friction and pressure loss of the water supply pipe) To calculate the effective pressure on the suction side of the pump of the pressure boosting device, it is necessary to calculate the friction and pressure loss of the water supply pipe. The head calculation calculates the flow rate for each section. The section is set each time the flow rate or pipe diameter changes. If the flow rate changes due to a branch pipe or the like, the section is made at that branch pipe. Even if there is no branch pipe, if the pipe diameter changes, the flow rate changes, so the section is made at the point where the relationship changes. Temporarily determine the pipe diameter for each section, and calculate the hydraulic gradient and flow velocity of the section based on the flow rate in the section and the temporarily determined pipe diameter. For the calculation, when the pipe diameter is 50 mm or less, the Weston formula can be used, and when the pipe diameter is 75 mm or more, the Hazen-Williams formula can be used. If the flow velocity becomes a predetermined value or more by the calculation, it is necessary to increase the temporarily determined pipe diameter in order to lower the flow velocity. Note that many waterworks operators require that the flow velocity be designed to be 2.0 m / s or less. many

[0067] (Calculation of total pipe length) The loss of head can be obtained by multiplying the hydraulic gradient by the total pipe length. The total pipe length is the sum of the actual straight pipe length, which is the actual length of the pipe within the section, and the equivalent straight pipe length calculated from the piping elements. Figure 6 (Hydraulic Calculation Sheet 3) shows an example of the calculation of the total pipe length in the hydraulic calculation sheet.

[0068] (Calculation of equivalent straight pipe length of piping elements) Piping elements include ball stop valves, check valves, isolation valves, 90° elbows, 45° elbows, etc. The equivalent straight pipe length means the length of the straight pipe that represents how many meters of the loss of head due to the piping element is equivalent to the loss of head of a straight pipe of the same diameter.

[0069] (Extraction of actual pipe length from isometric drawing) The extraction of the actual pipe length and piping elements can be facilitated from the hydraulic gradient diagram shown in Figure 3 and the isometric drawing shown in Figure 7. The isometric drawing can be easily created from the BIM model.

[0070] For the a-b section The method for calculating the total pipe length of the a-b section in the hydraulic gradient diagram (Figure 3) and the isometric drawing (Figure 7) will be described.

[0071] Regarding the actual pipe length and piping elements in the a-b section From the hydrodynamic gradient diagram (Figure 3), it can be understood that a ball check valve is arranged in the a-b section 910. Also, from the isometric view (Figure 7), the straight pipe actual length of the a-b section 810 is 2.0 m (1.1 m + 0.9 m), the pipe diameter is 75 mm, and it can be understood that two 90° elbows are arranged.

[0072] As shown in Figure 6, for each piping element such as the ball check valve arranged in the a-b section 610, the conversion length per unit is adopted from the pre-determined data 670. Also, the pre-determined data 670 can be easily obtained from data such as the catalog of the piping element. By integrating the conversion lengths of the piping elements arranged in the a-b section 610, the straight pipe conversion length meter 630 in the a-b section 610 can be calculated.

[0073] The total pipe length 640 can be calculated by the sum of the straight pipe actual length 620 of the a-b section 610 and the straight pipe conversion length meter 630 of the a-b section. By multiplying the calculated total pipe length 640 by the hydrodynamic gradient 650, the head loss 660 in the a-b section 610 can be calculated. The head loss can be calculated in other sections by the same method, and the suction side water supply friction and pressure loss can be calculated from the head losses of all sections.

[0074] The extraction of the actual pipe length, the extraction of the piping elements, and the calculation of the pressure loss from each drawing can be easily performed by using the BIM model.

[0075] (Calculation of water supply pipe friction and pressure loss) To calculate the required boosting pressure of the boosting device, it is necessary to calculate the water supply pipe friction and pressure loss on the outlet side of the boosting device. An example of the hydraulic calculation sheet on the outlet side (Hydraulic Calculation Sheet 4) is shown in Figure 8.

[0076] The head calculation calculates the flow rate for each section. The section is set each time the flow rate or pipe diameter changes. If the flow rate changes due to a branch pipe or the like, the section is made at the branch pipe. Even if there is no branch pipe, if the pipe diameter changes, the section is made at the point where the relationship changes because the flow rate changes.

[0077] As an example of head calculation, section 820 between the 8th floor and the 9th floor is shown. From the isometric view (Figure 7), it can be grasped that the section 820 between the 8th floor and the 9th floor has a diameter of 25 mm, a straight pipe actual length of 2.86 m, and one cheese diversion. Based on the matters that can be grasped from the isometric view, the hydraulic calculation can be easily performed.

[0078] For the dynamic water gradient and flow velocity for each section, the pipe diameter can be tentatively determined for each section, and the dynamic water gradient and flow velocity of the section can be calculated based on the flow rate in the section and the tentatively determined pipe diameter. The specific calculation method is the same as the method for calculating the loss of head according to the hydraulic calculation book 3, so it is omitted.

[0079] (Determination of the specifications of the pressure boosting device) As described above, when the flow rate and the total head PP of the pump are calculated, the specifications of the pump can be determined based on the calculation results. An example of the specification sheet of the pressure boosting device is shown in Figure 9.

[0080] Operation of the support system An example of the new installation of the water supply facility of this support system will be described with reference to the flowchart of Figure 10.

[0081] (Step S110) The application device 200 can perform a design for an application such as a water supply device construction. When the application device 200 applies for a water supply device construction or the like, it determines a water utility company from the location where the water supply device construction is to be performed and communicates with the review device 300 of the water utility company. When multiple water utility companies can be selected at the location where the water supply device construction is to be performed, the application device 200 can select an appropriate water utility company from the multiple water utility companies.

[0082] When the application device 200 and the examination device 300 are connected, the examination device 300 sends the data held by the examination device 300 to the application device. The data to be sent may be data necessary for applications such as water supply device construction work, or may be the examination criteria when the examination device examines applications such as water supply device construction work.

[0083] (Step S120) The application device 200 receives the data transmitted from the examination device 300. It is preferable that the application device 200 acquires, before the hydraulic calculation, the minimum dynamic water pressure Pa of the water distribution pipe where the water supply device construction work is carried out from the examination device 300 for the hydraulic calculation, and information necessary for applications such as water supply device construction work including examination criteria. When the application device 200 does not hold the data necessary for the hydraulic calculation and the data required is not included in the data transmitted from the examination device 300, the application device 200 can request the examination device 300 to transmit the necessary data.

[0084] (Step S130) The application device 200 can perform a hydraulic calculation by determining the water supply method from the details of the water supply device construction work and the minimum dynamic water pressure Pa of the water distribution pipe. When the calculation results of the already calculated hydraulic calculation can be used, the hydraulic calculation can be omitted by using the results of that hydraulic calculation.

[0085] The construction contractor inputs, via the application input unit 260, that the water supply device construction work is for a new installation of the water supply device and BIM data related to the water supply device into the application device 200. The data etc. input to the application input unit 260 are stored in the application storage unit 220.

[0086] When the application information acquisition unit 211 determines, via the application input unit 260, that the content of the application related to the water supply device construction work etc. is for a new installation of the water supply device, it acquires, from the application storage unit 220, the types of application data necessary when performing a new installation of the water supply device for the water supply utility to be examined.

[0087] ​When the application memory unit 220 does not store the type of information to be applied, the application device 200 requests the water supply company's review device 300 via the application communication unit 230 to transmit the type of information necessary for hydraulic calculation to the application device 200. The type of information returned from the water supply company's review device 300 to the application device 200 is stored in the application memory unit 220 provided in the application device 200.

[0088] When the application information acquisition unit 211 confirms the content of the hydraulic calculation necessary for the new installation of the water supply device, it acquires the data necessary for the hydraulic calculation from the application memory unit 220. The application information setting unit 212 performs hydraulic calculation based on the BIM data stored in the application memory unit 220. When it determines that the hydraulic calculation cannot be performed only with the BIM data stored in the application memory unit 220, it can display on the application display unit 240 for the construction contractor to input the data insufficient for the hydraulic calculation.

[0089] (Step S140) The application device 200 performs a preliminary review in the preliminary review unit 213 based on the result of the hydraulic calculation. The preliminary review is performed before submitting an application for water supply device construction work, etc. to the review device 300. The preliminary review unit 213 preferably performs the review according to the same criteria as the review criteria used by the review device 300 for review. The preliminary review unit 213 may perform the preliminary review according to the review criteria stored in the application memory unit 220, or may obtain the review criteria used by the review device 300 when the review device 300 performs the review from the review device 300 before performing the preliminary review, and perform the preliminary review according to the obtained review criteria.

[0090] The application device 200 changes the parameters related to the water supply work and repeats the hydraulic calculation a predetermined number of times until it is determined that the result of the preliminary review permits the application for water supply device construction work, etc. If it is not possible to determine that the application for water supply device construction work, etc. is permitted even after repeating the preliminary review a predetermined number of times, it notifies the construction contractor to that effect.

[0091] (Step S150) When the application device 200 determines through preliminary examination that permission for an application such as a water supply device construction project will be granted, it can submit an application for the water supply device construction project to the examination device 300. An application for a water supply device construction project or the like can be made through the network NW to which the application device 200 and the examination device 300 are connected.

[0092] (Step S160) The examination device 300 receives an application for a water supply device construction project or the like from the application device 200 and examines the application. The examination device 300 includes an examination storage unit 320 and can examine the application according to the examination criteria stored in the examination storage unit 320. Depending on the content and items of the application for the water supply device construction project or the like, a person in charge of the water utility company may conduct part or all of the examination visually based on the information displayed on the examination display unit 340.

[0093] (Step S170) The examination device 300 examines the application for the water supply device construction project or the like and notifies the application device 200 of the examination result through the network NW. Depending on the content of the examination result, the person in charge of the responsible department may also notify by phone or email.

[0094] (Step S180) The application device 200 receives the examination result for the application for the water supply device construction project or the like through the network NW. When the examination result is permission for the construction the application device 200 can issue an instruction to the construction contractor 205 to start the water supply work. Also, when the examination result is not permission for the construction, the application device 200 can re - perform the hydraulic calculation, change the content of the water supply work, and submit an application for the water supply device construction project or the like to the examination device 300 again.

[0095] In the conventional method, for the calculation of the head loss for each section, construction workers visually read the straight pipe length and piping elements (ball valves, check valves, gate valves, elbows, etc.) from the drawings, and obtained the actual length of the straight pipe by performing scale conversion, or obtained the number of piping elements by type. In addition, the person in charge of the water utility company visually performed calculations based on the submitted documents and performed calculations to confirm whether the applicant was performing hydraulic calculations correctly.

[0096] According to this embodiment, by performing the design for the construction of the water supply device or the like using a BIM model and performing hydraulic calculations using the BIM data of the BIM model, hydraulic calculations can be performed without requiring manual labor. Therefore, the designated construction company can quickly create data for applications related to the construction of the water supply device or the like, and has the effect of eliminating calculation errors and extraction errors of piping elements from documents.

[0097] In addition, since the applicant device 200 submits the application in a state where there are no calculation errors in advance, the person in charge of the department responsible for reviewing the application related to the construction of the water supply device or the like can reduce the confirmation of calculations, and the confirmation calculations can also be facilitated by the BIM data. In addition, since the content of the waterworks can be grasped from the isometric drawing correctly created from the BIM model, it has the effect of reducing the labor burden for the review.

[0098] (Second Embodiment) (Selection of Water Supply Method) When designing the construction of the water supply device, it is necessary to determine the water supply method. The water supply methods can be classified into three types: the storage tank water supply method, the direct pressure direct connection water supply method, and the booster direct connection water supply method. This embodiment is provided with a water supply method selection unit, and an appropriate water supply method can be selected based on the minimum dynamic water pressure of the water distribution pipe, the number of floors of the building where the water supply device is installed, and the review criteria of the water utility company.

[0099] When selecting a water supply method, past designs may be a reference. The water supply method selection unit can select a water supply method by referring to the application data related to the construction of past water supply devices stored in the application memory unit 220. The selection of the water supply method can be easily performed by referring to the BIM model.

[0100] When selecting a water supply method, up-to-date data may be required, such as laws and regulations like the Water Supply Law, the review criteria of water supply utilities, and the specifications of equipment adopted for water supply facilities. The water supply method selection unit can access an external database via the application communication unit 230 to obtain the necessary data and select a water supply method. The selection can be easily performed by referring to the BIM data.

[0101] The water supply method selection unit can change the water supply method based on the results of hydraulic calculations or the results of the review by the water supply utility. For example, even if the direct-pressure direct-connection water supply method is initially selected, if the result of the hydraulic calculation shows that the water supply facility does not reach the minimum dynamic water pressure, it can be changed to the storage tank water supply method or the booster direct-connection water supply method. Similarly, if the direct-pressure direct-connection water supply method fails to pass the review by the water supply utility, it can be changed to the storage tank water supply method or the booster direct-connection water supply method. The change of the water supply method can be easily performed by referring to the BIM data.

[0102] (Third Embodiment) (Selection of Booster Pump) When designing the construction of a water supply device, if the booster direct-connection water supply method is selected for the water supply method, it is necessary to select a pump for boosting. When selecting a pump, by performing hydraulic calculations by referring to the BIM data, an appropriate pump can be selected quickly. Also, by performing hydraulic calculations with the BIM data and sharing the calculations with pump manufacturers, etc., advice on the selection of an appropriate pump can be obtained from pump manufacturers.

[0103] (Fourth Embodiment) (Change of Booster Pump) After designing the construction of the water supply device, it may be necessary to change the design of the water supply device involving changes to the booster pump. For example, a pump that was in stock at the design stage may be out of stock at the construction stage, or a problem may occur with the pump selected during construction, requiring the selection of another pump. The change of the pump can be easily carried out by referring to the BIM data.

[0104] (Fifth Embodiment) The application device 200 and the review device 300 may be connected via the server device 150. The application device 200 can be configured to connect to the server device 150 and enable the server device 150 to select an application destination related to the construction of an appropriate water supply device.

[0105] For example, when the application device 200 inputs the location where the water supply device is to be installed in an application related to the construction of the water supply device, etc., the server device 150 selects a water utility company that applies for the construction of the water supply device, etc. based on that location, and can be configured such that an application related to the construction of the water supply device, etc. is made to the review device 300 of the selected water utility company. The construction of the system by the server device 150 can be easily carried out by referring to the BIM data. (Sixth Embodiment) The review device 300 may store the content of the application related to the construction of the water supply device, etc. in the application storage unit 220. By storing the content of the application related to the construction of the water supply device, etc. in the application storage unit 220, data on water supply facilities is accumulated, and even if it becomes impossible to contact the water supply construction contractor who carried out the construction of the water supply facilities, the maintenance and management of the water supply facilities can be carried out based on the accumulated data.

[0106] Also, when the water supply stops due to a disaster, etc., and water supply facilities such as water storage tanks held by the private sector are used, if there is data on the water supply facilities, the water supply facilities such as water storage tanks can be used quickly and accurately, and the particularly effective effect that the water stored in the water storage tank can be used as drinking water can be achieved. The accumulation of the data can be easily carried out by using the BIM data.

[0107] As described above, according to the present invention, since a construction contractor, a waterworks operator, and a construction company can progress the water supply equipment construction using the same platform based on BIM data, it is possible to facilitate the application for the water supply equipment construction and the like, the review of the application, and the construction after the review.

[0108] Even if different waterworks operators use the same platform, when the waterworks operators are integrated, it is possible to avoid wasting labor on data conversion and the like.

[0109] The embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and designs and the like within the scope not departing from the gist of the present invention are also included.

Explanation of Reference Numerals

[0110] 100... Support system, 200... Application device, 300... Review device, 400... Hydraulic calculation sheet 1 500... Hydraulic calculation sheet 2, 600... Hydraulic calculation sheet 3, 700... Hydraulic calculation sheet 4 800... Isometric drawing, 900... Dynamic water gradient line drawing

Claims

1. A support system for supporting an application related to the construction of a water supply device, the support system includes an application device and a review device, the application device includes, a description information acquisition unit that acquires description information regarding matters to be described in the application, an application information setting unit that sets application information to be applied to the review device in the application based on the description information acquired by the description information acquisition unit, an application information output unit that outputs the application information set by the application information setting unit, a communication unit that communicates with the review device, the review device includes, a review unit that performs a review based on a review criterion regarding the review of the construction of the water supply device or the like and the application information output from the application information output unit, a review result output unit that outputs the review result of the review unit, a communication unit that communicates with the application device, a support system.

2. The application device includes an application storage unit, an application input unit, and a preliminary review unit, the application storage unit stores information regarding the review criteria of the review unit, the application input unit is capable of inputting application information related to the construction of the water supply device or the like, the preliminary review unit performs a preliminary review based on the information regarding the review criteria stored in the application storage unit and the application information input by the application input unit, The support system according to Claim 1.

3. The application storage unit stores information regarding a plurality of different review criteria, the preliminary review unit selects information regarding one review criterion from among the plurality of different review criteria based on the application information input by the application input unit, and performs a preliminary review based on the selected information regarding the review criterion, The support system according to Claim 2.

4. Before performing the preliminary review, the preliminary review unit acquires information regarding the review criteria from the review unit and stores it in the application storage unit, and performs a preliminary review based on the stored information regarding the review criteria, The support system according to Claim 2.

5. The preliminary review unit predicts the review result of the review device by the preliminary review, and according to the prediction of the review result, the application device can apply for the construction of the water supply device or the like to the review device, The support system according to Claim 2.

6. The application device includes a review result input unit to which the review result output by the review unit is input, the application information setting unit changes the content of the application information based on the review result of the review unit, The support system according to Claim 1.

7. The application information is BIM data, The support system according to Claim 1.

8. A water supply method selection unit that selects any one of a water storage tank water supply method, a direct pressure direct connection water supply method, and a booster direct connection water supply method; The application information setting unit performs hydraulic calculations based on the water supply method selected by the water supply method selection unit. The support system according to claim 1.

9. Before selecting the water supply method, the water supply method selection unit obtains the minimum dynamic water pressure of the distribution pipe at the location where the water supply device is installed from the inspection device, and determines the water supply method based on the minimum dynamic water pressure of the distribution pipe. The support system according to claim 8.

10. A support method for supporting an application related to the construction of a water supply device, obtaining description information regarding matters to be described in the application; setting application information to be applied based on the obtained description information; examining an application related to the construction of the water supply device based on the application information; outputting the result of the examination. Support method.

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