WO2020039269A1

WO2020039269A1 - Hydrodynamic test apparatus for plumbing networks

Info

Publication number: WO2020039269A1
Application number: PCT/IB2019/053288
Authority: WO
Inventors: Morteza HEIDARIANNOGHONDAR; Hassan DOLATABADI
Original assignee: Heidariannoghondar Morteza; Dolatabadi Hassan
Priority date: 2019-04-20
Filing date: 2019-04-20
Publication date: 2020-02-27

Abstract

Hydrodynamic test apparatus for plumbing networks consists of software and hardware parts. The hardware part of the device includes mechanical panels for creating hydrodynamic and hydrostatic pressure, plumbing system and air control units and dynamic pressure that, in addition to smart management and monitoring, control and surveillance of plumbing networks, intelligently performs the operations of leak test, fatigue test, hydraulic shock test, static pressure resistance, network dynamic pressure, calculation of the amount of air trapped in the network, fittings, mechanical devices and equipment, and the accuracy of the implementation of the plumbing network in refineries, the distribution network and the transfer of water, oil and other fluids in the fluid passing mode. Due to the constant cross-section of the plumbing networks, the device can, by changing the velocity of fluid flow, test the plumbing network at different flow rates and through which fix the proper speed of fluid motion according to the type of plumbing network.

Description

Title of Invention : Hydrodynamic test apparatus for plumbing networks

[0001 ] Hydrodynamic test apparatus for plumbing networks consists of software and hardware parts. The hardware part of the device includes mechanical panels for creating hydrodynamic and hydrostatic pressure, plumbing system and air control units and dynamic pressure that, in addition to smart management and

monitoring, control and surveillance of plumbing networks, intelligently performs the operations of leak test, fatigue test, hydraulic shock test, static pressure resistance, network dynamic pressure, calculation of the amount of air trapped in the network, fittings, mechanical devices and equipment, and the accuracy of the implementation of the plumbing network in refineries, the distribution network and the transfer of water, oil and other fluids in the fluid passing mode. Due to the constant cross-section of the plumbing networks, the device can, by changing the velocity of fluid flow, test the plumbing network at different flow rates and through which fix the proper speed of fluid motion according to the type of plumbing network.

Technical Field

[0002] The present invention relates generally to stability test or dynamic balancing of machines.

Background Art

[0003] At present, the construction plumbing test method is based on the hydrostatic technique that the test pressure of the plumbing system is developed according to existing standards and is usually done with a traditional approach that has many errors. In this technique, which is one of the most common methods for testing plumbing networks, pipes are usually filled with water and, after ensuring the absence of air in the network, the fluid rises through a pressure pump device inside the pipes, which is called the test pressure. According to existing

standards, test pressure is usually 1.5 times the working pressure of the system. The inlet and outlet valves of the device are closed in this mode and the system is pressurized within the specified time period (usually this time is 24 hours). After completing the test period, in the case of lacking pressure reduction shown in the system and ensuring the accuracy of the test, the necessary approval is issued by the supervisor engineer.

[0004] Devices entered the market generally work with the same flow diagram, are designed and manufactured by various companies, known as the Hydrostatic Testing Machine. These devices automatically perform the test operation with the mentioned mechanism. The major problems with this method are as follows: In the hydrostatic test method, pressure in the system suddenly rises, which can cause damage to the facilities and equipment. The presence of air in the pipe and equipment causes error in the test. Air exhaust of the system is not easily possible and we cannot ensure about it. Generally, the fluid in the pipes is in motion and in transition, and the results obtained from the test at the time of fluid flow are different from fluid stationary in terms of fluid science. In test by the hydrostatic approach, there is a possibility of increasing the pressure during the test, which causes uncertainty in the proper functioning of the tester. The possibility of a cavitation phenomenon in the system is due to the test structure and the increase of the static pressure to the fluid.

[0005] Description or the related art including information disclosed . examples of such assemblies are disclosed in the following U.S. pat. Nos.:

[0006] Testing System for Plumbing Leaks- United States Patent Application

20080072981 :

[0007] A system for testing plumbing that includes a flexible plug-in for sealing or plumbing destruction, which contains an external duct for connecting the access line to the plumbing system and an air pump connected to the flexible plug-in.

The test system, when the plug-in is flexible and connected to the pipe, blocks the entrance of the water and works by the air pump manually or mechanically.

[0008] This is a simple test method by a flexible plug-in member and an air pump for testing, which is done in a traditional approach that has many errors, while the device automatically performs the test operations of plumbing network, fittings, devices and equipment in the fluid passing mode with a gradual increase in pressure through the entry of nitrogen gas, which is an inert gas. Due to lack of human factors involved in the testing operations of the plumbing networks by the device, the operational errors are reduced and the prepared graphs and reports show the tolerance factor of plumbing network at different pressures in a standard manner.

[0009] Plumbing testing devices-United States Patent Application 20030074955 :

[0010] The plumbing test apparatus consists of a balance pipe and one of the pipe sections having a water flow port and a flow control section and is closed between the two pipes. The device is installed by a longitudinal and flexible connection between the two sections of the pipe and a preset distance from each other.

[0011 ] The above device is connected to the sides of the pipe, which is a balanced transparent hose and is a traditional method full of errors, while the device accurately processes the information with hydrodynamic method, in addition to the networks test, and automatically performs this without interference.

[0012] Pipe network optimization - United States Patent 6829566 :

[0013] It is an optimized pipe network according to predetermined criteria that the method particularly gives an efficient technique to minimize the cost of rebuilding a water pipe network. This is a method for determining the hydraulic importance of pipes in a pipe network and also determines the needs of the peak flow of each pipe.

[0014] The above design is a method for hydraulic determination of pipes and their reconstruction, while our design is a method for Fluid behavior testing and resistance to plumbing networks.

[0015] TESTING AND VENTING PIPE ANNULUS - United States Patent Application 20100068986 :

[0016] This is a method and apparatus for testing the integrity of part of the flexible pipe body. The method involves the steps, through at least one port in the end fitting assembly, in which the bottom part of the flexible pipe body is connected, and surveillance at least one parameter related to a circular ring between the flexible pipe body layers. [0017] The above apparatus is a device for testing pipes that uses an assembled port to a connected pipe, while the hydrodynamic method and nitrogen gas are used in our method for testing the network and it has a more accurate

mechanism.

Summary of Invention

[0018] This summary is intended to provide an overview of the subject matter of the present disclosure, and is not intended to identify essential elements or key elements of the subject matter, nor is it intended to be used to determine the scope of the claimed implementations. The proper scope of the present

disclosure may be ascertained from the claims set forth below in view of the detailed description below and the drawings.

[0019] In one general aspect, the present disclosure describes Hydrodynamic test apparatus for plumbing networks.it is in the field of stability test or dynamic balancing of machines. In addition to smart management, control and

surveillance of plumbing networks, the device automatically performs the operations of leak test, fatigue test, static and dynamic pressure resistance of plumbing network, fittings, mechanical devices and equipment in refineries, the distribution network and the transfer of water, oil and other fluids in the fluid passing mode with a gradual increase in pressure through the entry of nitrogen gas, which is an inert gas. Due to lack of human factors involved in the testing operations of the pipeline network by the device, the operational errors are reduced and the prepared graphs show the tolerance factor of plumbing network at different pressures in a standard manner. Also, the pressure exerted to the plumbing network is gradually applied during several steps in the fluid circulation mode that the operation will increase life span of the plumbing network.

[0020] The working principles of the device are based on the collection of

environmental information from the effects of various factors of pressures on fluid motion behavior and the transfer of information to the processor. After examining the received cases, the processor starts checking the behavior of the fluid behavior in different conditions and transfers the necessary commands to the relevant output. The change in fluid behavior due to changes in velocity, pressure, flow type (laminar and turbulent), and... causes the creation of different tests in the network. In addition to testing the network in different modes, this allows network simulation in different modes, and greatly helps the user in network operation and work pressure regulation of the equipment.

Technical Problem

[0021 ] One of the concerns for observer engineers at the time of delivery of

mechanical equipment in various (construction, industrial, etc.) projects is how to test and ensure the proper implementation of the plumbing system in mechanical installations. Also, ensuring the pressure bearing in the plumbing system of the installations, whether at runtime or at the time of the operation, is one of the main duties of mechanical engineers supervising the projects. And because the test is done in a traditional way caused by human intervention, it has large errors.

Currently, the construction plumbing test method is based on the hydrostatic technique that the test pressure of the plumbing system is developed according to existing standards and is usually done with a traditional approach that has many errors. In this technique, which is one of the most common methods for testing plumbing networks, pipes are usually filled with water and, after ensuring the absence of air in the network, the fluid rises through a pressure pump device inside the pipes, which is called the test pressure. According to existing

standards, test pressure is usually 1.5 times the working pressure of the system. The inlet and outlet valves of the device are closed in this mode and the system is pressurized within the specified time period (usually this time is 24 hours). After completing the test period, in the case of lacking pressure reduction shown in the system and ensuring the accuracy of the test, the necessary approval is issued by the supervisor engineer that the major problems with this method are as follows: In the hydrostatic test method, pressure in the system suddenly rises, which can cause damage to the facilities and equipment. As well as, there is the possibility of cavitation phenomenon in the system due to the structure of the test and the increase of the static pressure to the fluid, or the presence of air in the pipe and equipment that causes error in the test. To solve the above problems, in addition to smart management, control and monitoring, surveillance of plumbing networks, the device automatically performs the operations of leak test, fatigue test, static and dynamic pressure resistance of plumbing network, fittings, mechanical devices and equipment in refineries, the distribution network and the transfer of water, oil and other fluids in the fluid passing mode with a gradual increase in pressure through the entry of nitrogen gas, which is an inert gas. Due to lack of human factors involved in the testing operations of the plumbing networks by the device, the operational errors are reduced and reports and the prepared graphs show the tolerance factor of plumbing network at different pressures in a standard manner. Moreover, the pressure exerted to the plumbing network is gradually applied during several steps in the fluid circulation mode that the operation will increase life span of the plumbing network.

Solution to Problem

[0022] Plumbing network testing by hydrodynamic method can be One of the new methods of the world practices in the field of testing and delivery of piping installations. In this case, we can carefully evaluate and examine all the states of the system and thus have a safe surveillance on the fluid behavior in different flows and a variety of conditions. Analysis of the fluid behavior in motor

conditions is an important step to determine the capacity of equipment in the field of operation of the system and can be a great help in reducing energy

consumption and increasing the longevity of the equipment.

[0023] Given that the Processing operations of surveillance, monitoring and control is simultaneously performed in designing algorithm of the program, and, on the other hand, each of these three cases (Processing, monitoring, and control) has internal complex algorithms based on receiving and processing analog and digital information, programming should be such that, in addition to Processing of the main algorithm of the program, internal algorithms are constantly "monitored and controlled" that the result of this operation is the application of appropriate output and logical decision making of the program based on the intelligent control of the system without operator intervention. In addition to smart management, control and monitoring, the device automatically performs the test operations of plumbing network, fittings, devices and equipment in the fluid passing mode with a gradual increase in pressure through the entry of nitrogen gas, which is an inert gas. Due to lack of human factors involved in the testing operations of the plumbing network by the device, the operational errors are reduced and the prepared graphs and reports show the tolerance factor of plumbing network at different pressures in a standard manner. Also, the pressure exerted to the plumbing network is gradually applied during several steps in the fluid circulation mode that the operation will increase life span of the plumbing network.

[0024] Description of testing process by hydrodynamic method: The testing and

measuring the amount of air in the network is calculated as follows.

[0025] Step 1 : Determine the actual volume of network

[0026] In this step, to determine the actual volume, the entire network is filled in

through the injection of nitrogen gas. The reason for using nitrogen gas is to determine the actual volume of the network due to the removal of air in the system.

[0027] By determining the mass of nitrogen entering the network, actual volume of the network can be calculated through the following formula.

[0028] [math.1 ]

[0029] Vs = Actual volume of network , R = Nitrogen constant , T = Ambient

temperature , m = Mass of nitrogen injected to the system , P = System pressure (gauge)

[0030] Step 2: Determine the water volume of system in static mode:

[0031 ] In static mode, we determine the mass of the water entering the network. In this case, the dewatering and, after airing and ensuring the filling of the network, the amount of water injected into the system are specified.

[0032] This value should be equal to the volume calculated in step 1 ; as a result, it can be said that all the air in the system are evacuated and the pressure test are correct in the static mode.

[0033] The volume of water inside the system is measured by the following formula:

[0034] [math.2]

mi

V_Wl —

P [0035] Vw1 = Volume of water inside the network in static mode , ml = Mass of water injected into the system in static mode, p = Density of water

[0036] Step 3: Determine the air volume within the system in dynamic mode:

[0037] In this step, we must create dynamical conditions and fluid motion at different speeds in the network, thereby obtaining the volume of air within the network at different speeds, using the following formula:

[0038] [math.3]

Vs— V w = V Air

[0039] V _Air = Volume of air inside the network , V_s = Actual volume of the plumbing network , V _w = Volume of water within the system in standard speed of network

[0040] In this case, the device generates fluid flow at different speeds using the

pressure unit mechanism and the pressure difference in the network.

[0041 ] The values obtained from the volume of air within the system at different speeds create the map No. 8.

[0042] Through analyzing the graph, the minimum and maximum value of air within the plumbing network and its deviation from existing standards can analyze and examine the accuracy of the plumbing network in terms of the type of piping and air production in the network under the conditions of operation of the system.

[0043] The main components of the device are classified into two parts:

[0044] 1 - Hardware

[0045] 2- Software

[0046] Each of the main sections of the various parts of the device is as follows:

[0047] 1 - Hardware:

[0048] 1 -1 - Mechanical panel

[0049] 2-1 - Control panel

[0050] 2- Software:

[0051 ] 2-1 - monitoring and control software

[0052] 2-2- Computational software [0053] 1- Hardware:

[0054] In general, the device hardware consists of two parts of the mechanical panel and control panel, and all components are placed together on a chassis.

[0055] The control circuit of the device is designed in such a way that it can easily perform the test operations. In order to conduct a test in dynamic mode, as described in the mechanism of the system's operation, the fluid motion flow must be created at a constant and variable speed in the path that the creation of such conditions has a special mechanical mechanism in terms of the arrangement of mechanical equipment together.

[0056] The connection mechanism of the equipment used in the mechanical panel is such that, using the pressure unit mechanism and the pressure difference in the network, it creates fluid motion at different velocities.

[0057] In order to create dynamic motion in the test circuit, the device must be able to produce a positive pressure difference at the input and output of the high- pressure pump. This action is carried out by the source under pressure with the mechanism of stabilizing the system pressure by nitrogen gas. As a result, as the pressure of the high-pressure pump rises, the inlet pressure in the system increases and the pressure source stabilizes the increased pressure in the system. With this, there is always a difference in pressure at the inlet and outlet of a high-pressure pump and this allows us to control the velocity of the fluid motion and therefore the fluid flow rate of the system. Control of the fluid rotation speed is one of the main indicators in conducting various tests of the plumbing network that the speed required for fluid rotation can be created with this mechanism at high volumes in plumbing networks without the need for a pump with high flow rate. Due to the constant cross-section of the plumbing networks, the device can, by changing the velocity of fluid flow, test the plumbing network at different flow rates and through which fix the proper flow rate according to the type of plumbing network. The operating circuit of the device in the electrical section is designed in such a way that the speed of high-pressure pump to be adjustable by the driver of the device electrical panel.

[0058] Other components in this section are as follows: [0059] 1 -1 - Mechanical Panel: The mechanical panel of the device has the following components:

[0060] 1 - Feeding pump

[0061 ] 2- High-pressure pump

[0062] 3- Filling device source

[0063] 4- Pressure source

[0064] 5- Air separator

[0065] 6- Nitrogen capsule

[0066] 7- Solenoid valve

[0067] 8- Fixed and portable pressure and temperature sensors

[0068] Determining the capacity of the above equipment is calculated so that the device can perform test operations in different conditions and different projects.

[0069] 2-1 - Control panel of the device:

[0070] The control panel of the device consists of an inverter device for regulating the motion cycle of electro-motors and a PLC processor and other processors Available in the Market.

[0071 ] Control equipment used in the panel is selected to work the device in different test conditions.

[0072] The panel processor is programmed in such a way to receive needed

information for the computing software and classify and send it as a file. Also, a display device to online monitoring the test is used on the panel.

[0073] 2- Software:

[0074] In general, the device software consists of two parts: monitoring and control software and fluid behavior calculations software.

[0075] Due to the way the device functions to create dynamic conditions in the

system and analyze the behavior of the fluid in these conditions, the software section of the device is designed and built. [0076] Due to the high volume of computational data as well as raising the reliability of test in the programming method for both software, the double redundant dans method is used. In this method, which is usually used in high priority

programming, in the event of the failure of any of the cpu, a backup cpu device in the reserve mode is placed in the circuit and continuation of testing process is done. In this method, which has its own technical complexity in programming, it assures the user that the data is correctly received from the information sources of the device and, after obtaining permission from the accuracy of input data, performs the corresponding processes and calculations.

[0077] 1 -2- monitoring and control software of the device

[0078] In this section, which performs surveillance and control of the device, the software is programmed in such a way that it can process the information and send the output required to the motor of pumps and valves by receiving the necessary inputs from the mechanical part. The program has a complete database of environmental conditions to select the output required for the mechanical equipment of the device

[0079] Initially, information is collected by the environmental sensors installed on the device and system. After ensuring the accuracy of the information received, the information is analyzed by the processor and the program creates the necessary output for control and surveillance of the device, as well as sends the data as a database to the fluid behavior calculations software. The software is programmed in a way that can provide the necessary platform for creating pressure balance in the device in the mechanical section and thus allow the administrative process of the test. As fully explained in the device functioning mechanism section, the device should be able to provide conditions for fluid motion at a specified speed and pressure that the operation is designed and managed by this program.

[0080] 2-2- Fluid behavior calculations software

[0081 ] The performance of the software is related to analyzing the behavior of the plumbing network, equipment, valves and... . The software receives the information related to the Processing and control unit of the device as a database from the monitoring and control software, and, after analysis of the above information, calculates and analyzes the test conditions. The test analysis method in this software is designed and programmed based on a unique formula derived from various calculations and existing commands in fluid mechanics. The software puts the received data into computational formulas and examines and monitors the calculation results according to the type of test and process.

[0082] After checking and ensuring the accuracy of the obtained values, the

necessary information is provided to the user in a checklist and reports. The information extracted from the checklist and reports contains the necessary information from the test conditions, received data, environmental conditions, computing values, and.... other information required for operation.

[0083] Coding mechanism of the device:

[0084] In the mechanism of coding the companies’ equipment and software, all

necessary security measures and rules are taken to prevent the copying of the source information of the device and, due to the mechanism created, the copying of the source information of the device is not easily possible.

[0085] How to encode equipment and software:

[0086] 1 - Install the company user software

[0087] This software is only install on a known computer like a laptop. So that the company takes the IP address of that computer and creates a product installation ID based on a hybrid formula. This ID is specific for the same computer and cannot be installed elsewhere.

[0088] 2- Hardware encoding as well as hardware barcoding

[0089] Hardware programs are locked through the written software, and an exclusive number is generated for each device, which, at the time of execution of the software mentioned above in step 1 , identify each other and the hardware only works with the installed software and does not work with any other software, even manufactured by the company.

[0090] How readout the information:

[0091 ] The ID codes generated by each section of the device can be linked with each other by encoder device if they are put together. Advantageous Effects of Invention

[0092] 1. Intelligent management, control and monitoring, operations of leak test and hydraulic shock test and dynamic pressure resistance of the plumbing network, fittings, mechanical devices and equipment in refineries, distribution network and transmission of water, oil and other fluids in fluid passing mode.

[0093] 2. Having control and monitoring and processe software for various types Testing facilities of pressure and fatigue testing, etc. for facilities and equipment as well as reporting software

[0094] 3. Reducing energy consumption and increase the life span of equipment

[0095] 4. Gradual increase in pressure through the entry of nitrogen gas (an inert gas)

[0096] 5. Fluid behavior calculations program and network simulator under Windows and Android

[0097] 6. Ability to print and prepare reports from all procedures of the test.

[0098] 7. Ability to save test reports as files for future use.

[0099] 8. Ability to determine the level of access for enhancing the security factor of the system.

[0100] 9. Ability to manage control and test planning at and out of the site.

[0101 ] 10. Use of combined test methods in plumbing network testing using water and nitrogen

[0102] 11. Plumbing network testing in mechanical installations in fluid circulation mode using hydrodynamic method and gradual increase of pressure.

[0103] 12. Ensuring the lack of presence of air in the system at the time of testing through the pressure control system installed on the device.

Brief Description of Drawings

[0104] Features of the subject technology are set forth in the appended claims.

However, for purpose of explanation, several implementations of the subject technology are set forth in the following figures. Fig.1

[0105] [Fig.1 ] is a Isometric map of the apparatus , according to embodiments of the disclosed subject matter .

Fig.2

[0106] [Fig.2] is a Front view of the apparatus , according to an embodiment herein.

Fig.3

[0107] [Fig.3] is a Side view of the apparatus, according to an embodiment herein.

Fig.4

[0108] [Fig.4] is a Details of air separation unit, according to an embodiment herein.

Fig.5

[0109] [Fig.5] is a Details of the pressure supply unit, according to an embodiment herein.

Fig.6

[01 10] [Fig.6] is a Riser diagram of the apparatus, according to an embodiment herein.

Fig.7

[01 1 1 ] [Fig.7] is a Control structure of the apparatus, according to an embodiment herein.

Fig.8

[01 12] [Fig.8] is a Diagram of the system air volume at different velocities,

according to an embodiment herein.

DETAILED DESCRIPTION OF THE DRAWINGS

[01 13] Referring now to the drawing figures, in which like refrence numbers refer to like parts throughout, preferred forms of the present embodiments. It is to be understood that the embodiments described and depicted herein are only selected examples of the many and various forms that the selected examples of the many and various forms that the present invention may take, and that these examples are not intended to be exhaustive or limiting of the claimed invention . [0114] Due to lack of human factors involved in the testing operations of the plumbing networks by the device, the operational errors are reduced and the prepared graphs show the tolerance factor of plumbing network at different pressures in a standard manner. Moreover, the pressure exerted to the plumbing network is gradually applied during several steps in the fluid circulation mode that the operations will increase life span of the plumbing network.

[0115] The leakage cases can be easily detected through this method by increasing the performance pressure of the plumbing network and the accuracy of the network test can be fully assured through the obtained graphs. Additionally, network fatigue testing, water hammer pressure, network pressure drop, etc. and other issues related to fluid dynamics can be identified, calculated and evaluated, and all of the items can be provided to the user as a complete checklist.

[0116] FIG. 1 illustrates a Isometric map of the apparatus , according to an

embodiment herein. With respect to FIG. 1 , Structure of the apparatus 1 , Analog and digital pressure transmitters 2 , Air solenoid valve 3 , Power supply 4 ,

Control panels of the apparatus 5 , Pressure gauge 6 , Stop valve feeding the apparatus 7, Non-return valve 8 , Return valve 9 , Front wheels of the apparatus 10 , Input collector of pumps 11 , Filter 12 , Check valve 13 , Output collector of pumps 14 , Solenoid valve 15 , Rear wheels of the apparatus 16 , Source under pressure 17 , Nitrogen capsule 18 .

[0117] FIG. 2 illustrates a Front view of the apparatus , according to an embodiment herein. With respect to FIG. 2 , Control panel of the apparatus 19 .

[0118] FIG. 3 illustrates a Side view of the apparatus , according to an embodiment herein. With respect to FIG. 3 , Pressure source sight glass 20 , Fligh-pressure pump 21 , Air separator 22 , Air separator sight glass 23 , Digital deaerator 24 , Gate valve 25 .

[0119] FIG. 4 illustrates a Details of air separation unit according to an embodiment herein. With respect to FIG. 4 , Air separation unit of the system 26 .

[0120] FIG. 6 illustrates a Riser diagram of the apparatus according to an

embodiment herein. With respect to FIG. 6 , Feeding pump 27 , Float valve 28 , Flow meter 29 . [0121 ] FIG. 7 illustrates a Control structure of the apparatus unit according to an embodiment herein. With respect to FIG. 7 , The above map shows the flow diagram of apparatus's control. The control system of apparatus consists of two parts: 1 ) hardware part 2- software part. In this flow diagram, the apparatus control mechanism and the relationship between the hardware and software component are fully represented with the relevant components.

[0122] FIG. 8 illustrates a Diagram of the system air volume at different velocities according to an embodiment herein. With respect to FIG. 8 , By analyzing this chart, the minimum and maximum air flow inside the pipeline network and its deviation from the existing standards can be used to analyze the accuracy of the piping network for the type of piping and air production in the network under the operating conditions of the system.

[0123] It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the claims.

[0124] The separation of various components in the examples described above

should not be understood as requiring such separation in all examples, and it should be understood that the described components and systems can generally be integrated together in a single package, or into multiple systems.

[0125] While the foregoing has described what are considered to be the best mode and/or other examples, it is understood that various modifications may be made therein and that the subject matter disclosed herein may be implemented in various forms and examples, and that the teachings may be applied in numerous applications, only some of which have been described herein. It is intended by the following claims to claim any and all applications, modifications and variations that fall within the true scope of the present teachings.

[0126] Unless otherwise stated, all measurements, values, ratings, positions,

magnitudes, sizes, and other specifications that are set forth in this specification, including in the claims that follow, are approximate, not exact. They are intended to have a reasonable range that is consistent with the functions to which they relate and with what is customary in the art to which they pertain.

[0127] The scope of protection is limited solely by the claims that now follow. That scope is intended and should be interpreted to be as broad as is consistent with the ordinary meaning of the language that is used in the claims when interpreted in light of this specification and the prosecution history that follows and to encompass all structural and functional equivalents. Notwithstanding, none of the claims are intended to embrace subject matter that fails to satisfy the requirement of Sections 101 , 102, or 103 of the Patent Act, nor should they be interpreted in such a way. Any unintended embracement of such subject matter is hereby disclaimed.

[0128] Except as stated immediately above, nothing that has been stated or

illustrated is intended or should be interpreted to cause a dedication of any component, step, feature, object, benefit, advantage, or equivalent to the public, regardless of whether it is or is not recited in the claims.

[0129] It will be understood that the terms and expressions used herein have the ordinary meaning as is accorded to such terms and expressions with respect to their corresponding respective areas of inquiry and study except where specific meanings have otherwise been set forth herein. Relational terms such as first and second and the like may be used solely to distinguish one entity or action from another without necessarily requiring or implying any actual such

relationship or order between such entities or actions. The terms“comprises,” “comprising,” or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by“a” or“an” does not, without further constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0130] The Abstract of the Disclosure is provided to allow the reader to quickly

ascertain the nature of the technical disclosure. It is submitted with the

understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, it can be seen that various features are grouped together in various implementations for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed implementations require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed implementation. Thus the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separately claimed subject matter.

Industrial Applicability

[0131 ] In addition to smart management, control and monitoring of the fluid behavior in dynamic mode, the device can be used for the operations of leak test, hydraulic shock test, fatigue test and static and dynamic pressure of plumbing network, fittings, mechanical devices and equipment in refineries, distribution network and transmission of water, oil and other fluid transfer equipment in passing mode.

Claims

[Claim 1] Hydrodynamic test apparatus for plumbing networks consists of software and hardware parts. The hardware part of the device comprising : mechanical panels for creating hydrodynamic and hydrostatic pressure, plumbing system and air control units and unit control of dynamic pressure, in addition to smart management, control and surveillance of plumbing networks, intelligently performs the operations of leak test, fatigue test, hydraulic shock test, static pressure resistance, Dynamic Network Resistance, network dynamic pressure, calculation of the amount of air trapped in the network, fittings, mechanical devices and equipment, and the accuracy of the implementation of the plumbing network in refineries, the distribution network and the transfer of water, oil and other fluids in the fluid passing mode.

[Claim 2] According to claim 1 , to test and measure the amount of air in the network, we first compute the actual volume of the network, and then measure the volume of the fluid inside the system, and finally we calculate the volume of air inside the system in a dynamic state and analyze and examine it by the graph.

[Claim 3] According to claim 1 , the device made is composed of the following

components: pump filling device, high pressure pump device, capsules containing nitrogen, air separator, system pressure supply source in the mechanical unit, intelligent panel of management, control, and

surveillance in electrical and control unit of the device.

[Claim 4] According to claim 3, the pressurized source with the pressure regulating mechanism by nitrogen gas causes a positive pressure difference in the inlet and outlet of a high-pressure pump, which results in the dynamic motion in the test circuit.

[Claim 5] According to claim 4, the pressure test in dynamical mode is done by the device through the mechanism of changing fluid behavior due to changes in velocity, pressure, flow type (laminar and turbulent) .

[Claim 6] According to claim 4, with increasing the velocity of the high-pressure pump, the inlet pressure in the system increases and the pressurized source fixes this increased pressure in the system, and there is always a difference in pressure at the inlet and outlet of a high-pressure pump, which controls the velocity of fluid flow and the flow rate of the system.

[Claim 7] According to claim 6, due to the constant cross-section of the plumbing networks, the device can, by changing the velocity of fluid flow, test the plumbing network at different flow rates and through which fix the proper speed flow rate according to the type of plumbing network.

[Claim 8] According to claim 3, control panel of the device consists of an inverter device for regulating the motion cycle of electro-motors and a PLC processor or other processor that receives the information needed for the computing software and classifies and sends it as a file.

[Claim 9] According to claim 8, information in the surveillance and control part of the device is collected by the environmental sensors installed on the device and the system, and after processing the program, it generates the necessary outputs for the motor of pumps and valves to To control and monitor the behavior of fluid in the piping network, as well as sending information operation on database to the fluid behavior calculator software.

[Claim 10] According to claim 9, behavior of the plumbing network is carried out by the network analysis software. The software puts the received data into computational formulas and examines and monitors the results of the calculation according to the type of test, and ultimately provides the user as a checklist and report.

[Claim 11 ] According to claim 10, in order to avoid copying the source information of the device, all equipment and software are coded and encrypted, which increases the security of the device.

[Claim 12] According to claim 10, the network analysis software can perform analysis and computing operations under exploitation conditions.

[Claim 13] According to claim 10, the software can perform analysis and calculation operations on-site and off-site simultaneously for multiple devices.