Device for automatically testing response time and measurement error of pipeline system of communicating pipe type monitoring equipment

Abstract

The invention relates to the technical field of water conservancy and hydropower engineering deformation monitoring equipment, in particular to a communicating pipe type monitoring equipment pipeline system response time and measurement error automatic testing device which comprises a communicating liquid supply system, a sensor device, a communicating pipe system, a data acquisition device and a control workstation. According to the communication pipe type monitoring equipment pipeline system response time and measurement error automatic testing device, through integration of the high-precision sensor and the simulation system, whole-process automation from data acquisition to time response is achieved, compared with a traditional manual testing method, the testing efficiency is improved by 90% or above, manual reading errors are eliminated, and the testing accuracy is improved. The original programmable modular pipeline system realizes accurate control and combined test of multivariable variables such as temperature, pipe diameter, pipe length and liquid type for the first time, improves the applicability of the hydrostatic leveling device in hydraulic structure deformation monitoring, expands the application range, and solves the problem that automation of hydraulic structure deformation monitoring cannot be realized.

Description

Technical Field

[0001] This invention relates to the field of deformation monitoring equipment for water conservancy and hydropower projects, specifically to an automated testing device for the response time and measurement error of a pipeline system in a connected pipe monitoring system. Background Technology

[0002] Hydropower structures are generally built on foundations with uneven geological structures and soil properties. During construction and long-term operation, due to load changes, foundation settlement, and external environmental influences, structures will experience settlement and deformation. Uneven settlement, in particular, can lead to structural tilting, cracks, and even instability. Therefore, vertical displacement is a crucial aspect of safety monitoring for most projects. A hydrostatic leveling system utilizes the principle that liquids in connected containers always seek to be horizontal with the same potential energy to measure and monitor the differences and changes in vertical height between reference points. Monitoring the settlement and deformation of structures is an important monitoring item during both construction and operation. It is of great significance for understanding the working behavior of hydraulic structures, mastering their changing patterns, and promptly detecting abnormal phenomena or potential engineering hazards.

[0003] Currently, settlement monitoring mainly relies on manual measurement, hydrostatic leveling, remote sensing technology (GPS / GNSS), or combinations thereof. While hydrostatic leveling offers advantages such as real-time automation and high precision, its application is largely limited to ambient temperature environments. In frigid regions, it can only be deployed in corridors or caves, with outdoor applications virtually nonexistent. Domestic research has identified multiple factors affecting the accuracy of hydrostatic leveling (such as installation errors, air pressure, temperature, sensor performance, liquid properties, and external disturbances), but research on the correlation mechanism between liquid response time and measurement error, especially the fluid dynamics characteristics under low-temperature environments, has not yet been conducted. Furthermore, the design of connecting pipes has long relied on empirical formulas, and the parameterization of pipe diameter and length lacks theoretical support, resulting in the overall error failing to meet the 0.3mm threshold required by specifications, severely delaying the installation progress of monitoring instruments.

[0004] The existing technology has the following key drawbacks:

[0005] 1. Unpredictable response time and error: On-site testing is required to eliminate sources of error (such as bubbles, temperature, etc.), which is inefficient and makes it impossible to predict the system performance under different operating conditions (pipe diameter, pipe length, temperature, liquid type).

[0006] 2. Insufficient adaptability to cold regions: Low temperatures cause changes in liquid viscosity and pipe wall shrinkage, and existing equipment is not optimized for extreme environments, raising doubts about the reliability of measured data.

[0007] 3. Design relies on experience and lacks theoretical support: Currently, the selection of connecting pipe parameters (such as pipe diameter and length) is mostly based on engineering experience and lacks scientific calculation models, which leads to errors exceeding the standard requirements (0.3mm) during actual measurement and affects the reliability of monitoring data.

[0008] 4. Lack of intelligence: Traditional acquisition software can only output instantaneous deformation in a static manner and cannot dynamically analyze the response time and error evolution. There is a lack of digital simulation devices in the design stage.

[0009] To address this, this invention proposes an automated testing device and method for the response time and measurement error of a pipe system in a connected pipe monitoring system. By simulating actual engineering conditions (including low-temperature environments), it quantifies the mapping relationship between pipe diameter, length, liquid properties, and measurement accuracy, enabling parametric design and error pre-correction of the hydrostatic leveling system. The accompanying automated acquisition software can track the equilibrium response process in real time, replacing manual experience-based interpretation and significantly improving the reliability and efficiency of settlement monitoring in hydropower projects in cold regions. This technology fills the application gap of hydrostatic leveling in frigid outdoor environments and provides a standardized solution for dam deformation monitoring under complex geological conditions. Summary of the Invention

[0010] The purpose of this invention is to provide an automated testing device for the response time and measurement error of a pipeline system in a connecting pipe monitoring device, and its method of use, to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: an automated testing device for the response time and measurement error of a pipeline system in a connecting pipe monitoring device, comprising a connecting fluid supply system, a sensor device, a connecting pipe system, a data acquisition device, and a control workstation;

[0011] A fluid supply system for storing fluids of different viscosities and controlling their circulation includes a storage tank into which various fluids, such as water, gasoline, ethylene glycol, and antifreeze, can be added.

[0012] Sensor devices are used to monitor the liquid level and ambient temperature in a graduated cylinder in real time, including a magnetostrictive level gauge SW1 for accurate real-time measurement of changes in the liquid level in the graduated cylinder.

[0013] The connecting pipe system consists of pipes of different diameters and lengths, used to simulate liquid communication environments under different engineering conditions. The connecting pipe system includes measuring cylinder A and measuring cylinder B to form a liquid level balancing device.

[0014] A data acquisition device, connected to the sensor device, is used to monitor liquid level changes in real time, calculate response time, and measure error;

[0015] The control workstation is communicatively connected to the data acquisition device and is used to run test programs, store test data, and output the optimal monitoring design scheme.

[0016] More preferably, a measuring replenishment pump B1 is fixedly installed on one side of the liquid storage tank, and one side of the liquid storage tank is fixedly connected to an emptying and filling pump B2 through a connecting pipe. An anti-foaming baffle is fixedly connected inside the liquid storage tank. A cover opening is opened on one side of the liquid storage tank, a baffle opening is opened on one side of the anti-foaming baffle, and a cover plate is hinged to one side of the liquid storage tank.

[0017] More preferably, the sensor device includes a magnetostrictive level gauge SW1, which is fixedly installed inside the measuring cylinder A, and the signal output terminal of the magnetostrictive level gauge SW1 is connected to a data acquisition device.

[0018] More preferably, the connecting pipe system further includes a measuring replenishment pipe DN10 for replenishing liquid via a measuring replenishment pump B1;

[0019] The overflow prevention pipe DN17 is used to prevent excessive overflow of the connecting liquid in measuring cylinders A and B.

[0020] Manual valves (A1~A15) are used to control the initial liquid level in graduated cylinder A;

[0021] Manual valves (DB5~DB1) and manual valves (DA1~DA5) are used to control the flow of liquid between the graduated cylinder and pipes of different diameters and lengths.

[0022] The manual valve B of the balance connecting pipe, the electric valve DF0 of the balance connecting pipe, and the manual valve B of the balance connecting pipe are used to connect the measuring cylinder A (1) and the measuring cylinder B to form an initial balance;

[0023] The electric valve DFya of the overflow pipe B and the electric valve B (DF5~DF1) are used to realize automated control testing.

[0024] The overflow pipes A1 to A15 (DN17) are used to adjust the height of the liquid in the measuring cylinder A;

[0025] The overflow pipe B (DN17) is used to control the equilibrium liquid level of the circulating liquid in the measuring cylinder B;

[0026] The balancing connecting pipe (DN19) is used to control the discharge of air bubbles and balance the liquid level in graduated cylinder A;

[0027] Measuring connecting pipe B (DN17~DN10) and measuring connecting pipe A (DN10~DN17) are used to form connecting pipes of different diameters;

[0028] Pipe-changing valve assembly, used to control the connection of connecting pipes of different diameters;

[0029] The venting and filling valves BF5~BF1 and venting and filling valves AF1~AF5 are used to control the venting air bubbles;

[0030] Drain filling pipe C (DN17), drain filling pipe B (DN17), drain filling pipe A (DN10~DN17) are used to drain air bubbles and connect liquid;

[0031] 40m valve assemblies, 80m valve assemblies, 120m valve assemblies, and 160m valve assemblies are used to adjust the length of pipes with different diameters.

[0032] More preferably, the data acquisition device is connected to the magnetostrictive level gauge SW1, the measuring replenishment pump B1, the emptying and filling pump B2, the measuring overflow pipe B electric valve DFya, the measuring electric valves B (DF5~DF1) and the balancing electric valve DF0 via cables.

[0033] More preferably, the control workstation is a TinkStation P350 or a workstation with equivalent configuration parameters, and is connected to the data acquisition device via a network cable.

[0034] An automated testing device for response time and measurement error of a pipeline system in a connecting pipe monitoring device, the method of use includes the following steps:

[0035] S1: Fluid filling procedure for connecting tubes

[0036] ① Close all manual valves (DA1~DA5) in the bottom measuring connecting pipe of graduated cylinder A and the manual valves (A1~A15) in the side wall measuring overflow pipe. Close all manual valves (DB5~DB1) in the bottom measuring connecting pipe of graduated cylinder B and the electric valve DFya in the side wall measuring overflow pipe B. Open the manual valve B, the electric valve DF0, and the manual valve A in the balance connecting pipe. Turn on the measuring replenishment pump B1 to fill graduated cylinder A with liquid. When liquid flows out of the anti-overflow pipe (DN17) on the side wall of graduated cylinder B, turn off the measuring replenishment pump B1 and let it stand for a period of time until all the liquid bubbles in the graduated cylinder dissipate.

[0037] ② Open all valve groups for pipe changing: 40m, 80m, 120m, and 160m (both directions of the measuring connecting pipe are open, the short pipe direction is closed) and venting / filling valves AF1~AF5 and BF5~BF1 (the direction of the rear measuring connecting pipe and the venting / filling pipe is open, the direction of the measuring connecting pipe on the measuring cylinder side is closed). Turn on the venting / filling pump B2. After the 200m DN17 measuring connecting pipe is filled with liquid, open the valve groups for pipe changing in the order of 160m, 120m, 80m, and 40m (the direction of the measuring connecting pipe and the short pipe on the measuring cylinder side is open, the direction of the rear measuring connecting pipe is closed). Generally, after the air bubbles in the short pipes of each length of the valve group are discharged, switch to the next set of valve groups. After all the air bubbles in the short pipes of the DN17 measuring connecting pipe are discharged, open the bottom D valve of the measuring cylinder A in sequence. Open the manual valve DA5 and the emptying and filling valve AF5 of the N17 measuring connecting pipe (the measuring connecting pipe is open in both directions, and the emptying and filling pipe is closed in direction A). After all the air bubbles in the DN17 measuring connecting pipe at the bottom of measuring cylinder A are expelled, open the manual valve DB5, the electric valve B (DF5), and the emptying and filling valve BF5 of the DN17 measuring connecting pipe at the bottom of measuring cylinder B in sequence (the measuring connecting pipe is open in both directions, and the emptying and filling pipe is closed in direction B). After all the air bubbles in the DN17 measuring connecting pipe at the bottom of measuring cylinder B are expelled, open the emptying and filling valve BF5 (the measuring connecting pipe is open in both directions, and the emptying and filling pipe is closed in direction B). Finally, turn on the measuring replenishment pump B1 to fill measuring cylinder A. When liquid flows out of the overflow tube (DN17) of measuring cylinder B, turn off the measuring replenishment pump B1 and let it stand for a period of time to wait for all the liquid air bubbles in the measuring cylinder to dissipate.

[0038] Continue this process to fill the connecting pipe for the next diameter measurement. After completion, turn off the emptying pump B2 and wait for the measurement.

[0039] S2: Testing for different pipe diameters

[0040] Turn on the measuring replenishment pump B1 and run it for 10 minutes; turn off the measuring replenishment pump B1 and allow it to stabilize for 1 minute; open the measuring electric valve B (DF5); collect the water level data H40-17 (H40-17 represents a 40m long, 17mm diameter pipe) and temperature data T40-17 from the magnetostrictive level gauge SW1 every 10 seconds and record them; continue until H40-17 equals the equilibrium water level + 0.3mm, then close the measuring electric valve B (DF5) and stop collecting data from the magnetostrictive level gauge SW1; turn on the measuring replenishment pump B1 and run it for 10 minutes; turn off the measuring replenishment pump B1... 1. Stabilize for 1 minute; open the measuring electric valve B (DF4); collect and record the water level data H40-16 and temperature data T40-16 of the magnetostrictive level gauge SW1 every 20 seconds; until H40-16 equals the equilibrium water level + 0.3 mm, close the measuring electric valve B (DF4) and stop collecting data from the magnetostrictive level gauge SW1; start the measuring replenishment pump B1 and run for 10 minutes; turn off the measuring replenishment pump B1 and stabilize for 1 minute; open the measuring electric valve B (DF3); collect the water level data H40-16 of the magnetostrictive level gauge SW1 every 30 seconds. Record the water level data H40-14 and temperature data T40-14; until H40-14 equals the equilibrium water level + 0.3mm, close the measuring electric valve B (DF3) and stop collecting data from the magnetostrictive level gauge SW1; start the measuring replenishment pump B1 and run it for 10 minutes; turn off the measuring replenishment pump B1 and stabilize it for 1 minute; open the measuring electric valve B (DF2); collect the water level data H40-12 and temperature data T40-12 from the magnetostrictive level gauge SW1 every 40 seconds and record them; until H40-12 equals the equilibrium water level + 0.3mm, turn off the measuring electric valve B (DF2) and stop collecting data from the magnetostrictive level gauge SW1. Turn off electric valve B (DF2) to stop collecting data from magnetostrictive level gauge SW1; turn on measuring replenishment pump B1 and run it for 10 minutes; turn off measuring replenishment pump B1 and stabilize it for 1 minute; turn on electric valve B (DF1); collect water level data H40-10 and temperature data T40-10 from magnetostrictive level gauge SW1 every 40 seconds and record them; continue until H40-10 equals the equilibrium water level + 0.3 mm, then turn off electric valve B (DF1) and stop collecting data from magnetostrictive level gauge SW1. Repeat this process for the next test of connecting pipes of different diameters and lengths.

[0041] S3: Procedure for emptying connecting pipes, graduated cylinders, and liquid storage tanks

[0042] Open all valve groups for pipe replacement: 40m valve group, 80m valve group, 120m valve group, and 160m valve group (both directions of the measuring connecting pipe are open, and the short pipe direction is closed), emptying and filling valves AF1~AF5 (both directions of the measuring connecting pipe are open, and the emptying and filling pipe A direction is closed), BF5~BF1 (both directions of the measuring connecting pipe are open, and the emptying and filling pipe B direction is fully open), manual valves (DA1~DA15), manual valves (DB5~DB1), and measuring electric valve B (DF5~DF1). Turn on the emptying and filling pump B2. After the liquid in measuring cylinders A and B is emptied, open the emptying and filling valves BF5~BF1 in sequence (the measuring connecting pipe and the emptying and filling pipe B direction are open, and the measuring connecting pipe on the measuring cylinder side is closed) to drain all the liquid in each measuring connecting pipe one by one. The liquid in the storage tank is transferred to the original liquid storage tank by emptying and filling pipe C (DN17).

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0044] This invention integrates high-precision sensors and a simulation system to achieve full automation from data acquisition to time response. Compared with traditional manual testing methods, the testing efficiency is improved by more than 90%, and human reading errors are eliminated. The unique programmable modular pipeline system enables precise control and combined testing of multiple variables such as temperature, pipe diameter, pipe length, and liquid type for the first time. At the same time, it improves the applicability of hydrostatic leveling devices in deformation monitoring of hydraulic structures, expands the application scope, and solves the problem that deformation monitoring of some hydraulic structures cannot be automated.

[0045] In this invention, for example, at -30℃, the response characteristics of different circulating fluids in different pipelines can be quantitatively evaluated, providing data support for the selection of systems for cold-region engineering projects. Breakthroughs in engineering applicability: In the design phase, by establishing a multivariate regression model, the system response time under different schemes can be predicted, upgrading static leveling design from "empirical estimation" to a scientific model of "theoretical calculation + experimental verification"; In the construction phase, rapid assembly solves the problem of difficult on-site commissioning, greatly saving manpower and resources. Attached Figure Description

[0046] Figure 1 This is a model diagram of an automated testing device for the response time and measurement error of a pipeline system, which is a type of pipe monitoring equipment.

[0047] Figure 2 This is a schematic diagram of the installation of the valve assembly for measuring the connecting pipe;

[0048] Figure 3 This is a schematic diagram of the installation of graduated cylinder A;

[0049] Figure 4 This is a schematic diagram of the installation of measuring cylinder B;

[0050] Figure 5This is a schematic diagram of the liquid storage tank installation.

[0051] In the diagram: 1. Graduated cylinder A; 2. Magnetostrictive level gauge SW1; 3. Measuring replenishment pipe (DN10); 4. Manual valve (A1~A15); 5. Anti-overflow pipe (DN17); 6. Measuring overflow pipes A1~A15 (DN17); 7. Measuring overflow pipe B (DN17); 8. Electric valve DFya for measuring overflow pipe B; 9. Graduated cylinder B; 10. Manual valve B for balancing connecting pipe; 11. Electric balancing valve DF0; 12. Balancing connecting pipe 13. Manual valve (DB5~DB1); 14. Balancing connecting pipe (DN19); 15. Manual valve (DA1~DA5); 16. Measuring electric valve B (DF5~DF1); 17. Measuring connecting pipe B (DN17~DN10); 18. Measuring connecting pipe A (DN10~DN17); 19. Drain and fill valves BF5~BF1; 20. Pipe changing valve assembly; 21. Drain and fill valves AF1~A F5; 22. Drain and fill pipe C (DN17); 23. Drain and fill pipe B (DN17); 24. Drain and fill pump B2; 25. Drain and fill pipe A (DN10~DN17); 26. Cable; 27. Cover plate; 28. Liquid storage tank; 29. ​​Measuring and replenishing pump B1; 30. Bubble-blocking baffle; 31. Data acquisition device; 32. Network cable; 33. Workstation; 34. 40m valve assembly; 35. 80m valve assembly; 36. 120m valve assembly; 37, 160m valve assembly; 38, anti-overflow pipe connector; 39, connector valve; 40, measuring scale; 41, measuring cylinder A bottom plate; 42, measuring cylinder A connector valve; 43, bolt hole; 44, valve hole; 45, groove; 46, magnetostrictive level gauge SW1 hole; 47, measuring cylinder A top plate; 48, overflow pipe connector; 49, measuring cylinder B bottom plate; 50, measuring cylinder B connector valve; 51, tank cover opening; 52, partition opening. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] Please see Figure 1 - Figure 5 The present invention provides a technical solution: an automated testing device for response time and measurement error of a pipeline system for monitoring equipment using a connecting pipe, comprising a connecting fluid supply system, a sensor device, a connecting pipe system, a data acquisition device, and a control workstation;

[0054] The fluid supply system is used to store fluids of different viscosities and control their circulation. It includes a storage tank (28) into which various fluids can be added, such as water, gasoline, ethylene glycol, antifreeze, etc. The measuring replenishment pump B1 (29) is used to quantitatively replenish fluids in the vector cylinder A (1). The emptying and filling pump B2 (24) is used to fill pipes of different diameters, remove air bubbles and empty the fluids. The bubble-blocking baffle (30), the tank cover opening (51) and the baffle opening (52) are used to block air bubbles from being discharged from the pipes and maintain a stable liquid flow rate. The cover plate (27) prevents foreign matter from entering the storage tank.

[0055] The sensor device is used to monitor the liquid level and ambient temperature in the measuring cylinder in real time. The sensor device includes a magnetostrictive liquid level gauge SW1(2). The magnetostrictive liquid level gauge SW1(2) is installed in the measuring cylinder A(1) and is used to measure the change in liquid level in the measuring cylinder in real time and accurately. At the same time, it integrates a temperature sensing unit to monitor the temperature parameters of the connected liquid. The signal output terminal of the magnetostrictive liquid level gauge SW1(2) is connected to the data acquisition device to realize the synchronous acquisition and transmission of liquid level and temperature data.

[0056] The connecting pipe system is composed of pipes of different diameters and lengths, used to simulate liquid communication environments under different engineering conditions. The connecting pipe system includes measuring cylinder A (1) and measuring cylinder B (9) to form a liquid level balancing device.

[0057] Measuring replenishment tubing DN10(3) is used for replenishment via measuring replenishment pump B1(29);

[0058] An overflow prevention pipe DN17(5) is used to prevent excessive overflow of the connecting liquid in measuring cylinder A and measuring cylinder B;

[0059] Manual valves (A1~A15)(4) are used to control the initial liquid level in graduated cylinder A;

[0060] Manual valves (DB5~DB1)(13) and manual valves (DA1~DA5)(15) are used to control the flow of liquids connecting the graduated cylinder with different pipe diameters and lengths;

[0061] The manual valve B(10), the electric valve DF0(11), and the manual valve B(12) of the balance connecting pipe are used to connect the measuring cylinder A(1) and the measuring cylinder B(9) to form an initial balance.

[0062] The electric valves DFya (8) and B (DF5~DF1) (16) of the overflow pipe B are used to realize automated control testing.

[0063] The overflow pipes A1 to A15 (DN17) (6) are used to adjust the height of the liquid in the measuring cylinder A;

[0064] Measuring overflow pipe B (DN17)(7) is used to control the balance liquid level of the circulating liquid in measuring cylinder B;

[0065] The balancing connecting pipe (DN19)(14) is used to control the discharge of air bubbles and balance the liquid level in graduated cylinder A;

[0066] Measuring connecting pipe B (DN17~DN10) (17) and measuring connecting pipe A (DN10~DN17) (18) are used to form connecting pipes of different diameters;

[0067] Pipe-changing valve assembly (20) is used to control the connection of connecting pipes of different diameters;

[0068] The drain and fill valves BF5~BF1(19) and AF1~AF5(21) are used to control the air venting bubbles.

[0069] Drain filling pipe C (DN17) (22), drain filling pipe B (DN17) (23), drain filling pipe A (DN10~DN17) (25) are used to drain air bubbles and connect liquid;

[0070] 40m valve group (34), 80m valve group (35), 120m valve group (36), 160m valve group (37) are used to adjust the length of different pipe diameters;

[0071] The data acquisition device, connected to the sensor device, is used to monitor liquid level changes in real time, calculate response time, and measure error.

[0072] The control workstation communicates with the data acquisition device and is used to run test programs, store test data, and output the optimal monitoring design scheme.

[0073] In this embodiment, as Figure 1As shown, the data acquisition device (31) is connected to the magnetostrictive level gauge SW1 (2), the measuring replenishment pump B1 (29), the emptying and filling pump B2 (24), the measuring overflow pipe B electric valve DFya (8), the measuring electric valves B (DF5~DF1) (16) and the balancing electric valve DF0 (11) via cable (26) to realize data acquisition, control and storage. The technical parameters of the data acquisition device are as follows: It has power management, battery power supply and power failure protection functions; the battery power supply time should not be less than three days; it has the functions of selective measurement, automatic patrol measurement according to the set time and temporary data storage; it has the function of communicating with the acquisition computer; it can receive the command of the acquisition computer to set and modify the clock and measurement and control parameters; it can use a portable computer or reading instrument to carry out on-site measurement, and can use the acquisition computer or portable computer to obtain the temporary measurement data from the automatic data acquisition device; it has certain self-testing and self-diagnosis functions, and can automatically check the operating status of each part and transmit the fault information to the management computer for user maintenance; number of channels: the standard configuration should be 8 channels, single branch The sensor occupies one channel and can adapt to data acquisition from various types of sensors; measurement methods include timed, single-point, patrol, selective, or arbitrary group of measurement points; the timed interval is no more than 10 minutes and can be set; the sampling time is less than or equal to 30 seconds per point; it is adaptable to the working environment, with a temperature of -40℃ to +60℃ and humidity not exceeding 95%, and is cold-resistant and moisture-resistant; the mean time between failures (MTBF) is no more than 6300 hours; the mean time to repair (MTTR) is no more than 2 hours; it is protected against lightning strikes of 500W to 1500W; the data storage capacity is no less than 10,000 measurements; the communication interface adopts TCP / IP protocol, wireless transmission, or other communication methods, and provides relevant protocol documents or software interfaces.

[0074] In this embodiment, as Figure 1 As shown, the control workstation uses a TinkStation P350 or equivalent configuration workstation, and is connected to the data acquisition device (33) via a network cable (32) to realize software deployment and control acquisition.

[0075] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the basic operations are as follows: DF0~DF5 switch electric valves open and close, with additional switch status display; DFya switch electric valves open and close, with additional switch status display; B1 switch water pumps open and close, with additional switch status display; SW1 acquisition key water level gauge data acquisition + additional real-time water level data display.

[0076] Test Plan 1

[0077] 40m Pipe Diameter Test: Start water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF5; collect and record water level data H40-17 and temperature data T40-17 from water level gauge SW1 every 10 seconds; continue until H40-17 equals the equilibrium water level + 0.3mm, then close electric valve DF5 and stop collecting water level data; start water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF4; collect and record water level data H40-16 and temperature data T40-16 from water level gauge SW1 every 20 seconds; continue until H40-16 equals the equilibrium water level + 0.3mm, then close electric valve DF4 and stop collecting water level data; start water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF3; collect water level data from water level gauge SW1 every 30 seconds. Record the water level data H40-14 and temperature data T40-14; until H40-14 equals the equilibrium water level + 0.3mm, close the electric valve DF3 and stop collecting water level data; start water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open the electric valve DF2; collect the water level data H40-12 and temperature data T40-12 from water level gauge SW1 every 40 seconds and record them; until H40-12 equals the equilibrium water level + 0.3mm, close the electric valve DF2 and stop collecting water level data; start water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open the electric valve DF1; collect the water level data H40-10 and temperature data T40-10 from water level gauge SW1 every 50 seconds and record them; until H40-10 equals the equilibrium water level + 0.3mm, close the electric valve DF1 and stop collecting water level data.

[0078] Test Plan Two

[0079] Test on 80m pipes of different diameters: Turn on water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF5; collect and record the water level data H80-17 and temperature data T80-17 of water level gauge SW1 every 20 seconds; until H80-17 equals the equilibrium water level + 0.3mm, close electric valve DF5 and stop collecting water level data; turn on water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF4; collect and record the water level data H80-16 and temperature data T80-16 of water level gauge SW1 every 40 seconds; until H80-16 equals the equilibrium water level + 0.3mm, close electric valve DF4 and stop collecting water level data; turn on water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF3; collect the water level data of water level gauge SW1 every 60 seconds. Collect and record the water level data H80-14 and temperature data T80-14; until H80-14 equals the equilibrium water level + 0.3mm, close the electric valve DF3 and stop collecting water level data; start water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF2; collect and record the water level data H80-12 and temperature data T80-12 from water level gauge SW1 every 80 seconds; until H80-12 equals the equilibrium water level + 0.3mm, close the electric valve DF2 and stop collecting water level data; start water pump B1 and run for 10 minutes; turn off water pump B1 and stabilize for 1 minute; open electric valve DF1; collect and record the water level data H80-10 and temperature data T80-10 from water level gauge SW1 every 100 seconds; until H80-10 equals the equilibrium water level + 0.3mm, close the electric valve DF1 and stop collecting water level data.

[0080] Model Algorithm

[0081] A univariate linear regression model studies the linear relationship between a dependent variable and one independent variable. This project involves a problem concerning the quantitative relationship between one dependent variable and multiple independent variables, requiring us to establish a multiple linear regression model. The formula for the multiple linear regression equation is as follows:

[0082] f(x1, x2, ..., x) n )=α1×x1+α2×x2+…+α n ×x n +β

[0083] Where x1, x2, ..., x n Let them represent independent variable 1, independent variable 2, ..., independent variable n, respectively;

[0084] f(x1,x2,…,x n () represents a dependent variable that is linearly synthesized under the combined influence of the independent variables;

[0085] α1, α2, ..., α n These represent the coefficients to be fitted;

[0086] β represents the constant to be fitted.

[0087] Test index: R 2 P refers to the goodness of fit, which is the degree to which the regression line fits the observed values. The closer P is to 0, the more significant the multivariate linear equation is.

[0088] In hydrostatic leveling problems involving linear relationships among multiple variables, this project uses Python to perform multiple linear regression to solve practical problems. A total of 2626 sample data points were collected using an automated testing device for the response time and measurement error of a pipeline system (connecting pipe monitoring equipment), and the fitted equation is as follows:

[0089] Q=0.4611T-0.0023L+73.7385D+6.9398H+1.1073t-87.6854

[0090] P<0.05

[0091] Where: Q is the flow rate (cm) 3 / s), T is the air temperature (°C), L is the pipe length (cm), D is the pipe diameter (cm), H is the liquid level difference (cm), and t is the response time.

[0092] The formula for calculating response time t is:

[0093]

[0094] 0.55365t 2 +(0.4611T-0.0023L+73.7385D+6.9398H-87.6854)tV=0

[0095] Where: V is the volume (cm³) 3 ).

[0096] The method of use and advantages of this invention: The automated testing device for response time and measurement error of the pipeline system of this connecting pipe monitoring equipment operates as follows:

[0097] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, S1: Liquid filling operation procedure for the connecting tube.

[0098] ① Close all manual valves (DA1~DA5)(15) at the bottom of measuring cylinder A(1) and manual valves (A1~A15)(4) at the side wall measuring overflow pipe. Close all manual valves (DB5~DB1)(13) at the bottom of measuring cylinder B(9) and electric valve DFya(8) at the side wall measuring overflow pipe B. Open manual valve B(10), electric valve DF0(11), and manual valve A(12) at the balance connecting pipe. Turn on measuring replenishment pump B1(29) to fill measuring cylinder A(1). When liquid flows out from the anti-overflow pipe (DN17)(5) on the side wall of measuring cylinder B(9), turn off measuring replenishment pump B1(29). Let stand for a period of time and wait for all the liquid bubbles in the measuring cylinder to dissipate.

[0099] ② Open all the pipe-changing valve groups: 40m valve group (34), 80m valve group (35), 120m valve group (36), and 160m valve group (37) (the measuring connecting pipe is open in both directions, and closed in the short pipe direction) and the emptying and filling valves AF1~AF5 (21) and BF5~BF1 (19) (the measuring connecting pipe and the emptying and filling pipe are open in the direction of the rear measuring connecting pipe, and closed in the direction of the measuring connecting pipe on the measuring cylinder side). Turn on the emptying and filling pump B2 (24). After the 200m DN17 measuring connecting pipe is filled with liquid, open the pipe-changing valve groups in the order of 160m, 120m, 80m, and 40m (the measuring connecting pipe and the short pipe are open in the direction of the measuring cylinder side, and closed in the direction of the rear measuring connecting pipe). Generally, after the air bubbles in the short pipes of each length of the pipe-changing valve group are discharged, switch to the next set of length pipe-changing valves. After all the air bubbles in the short pipes of the DN17 measuring connecting pipe are discharged, open the bottom DN17 measuring valve of the measuring cylinder A in sequence. Open the manual valve DA5 (15) and the emptying and filling valve AF5 (21) of the connecting pipe (the measuring connecting pipe is open in both directions and the emptying and filling pipe A is closed). After all the air bubbles in the measuring connecting pipe DN17 at the bottom of the measuring cylinder A are discharged, open the manual valve DB5 (13), the electric valve B (DF5) (16), and the emptying and filling valve BF5 (19) of the measuring connecting pipe DN17 at the bottom of the measuring cylinder B in sequence (the measuring connecting pipe is open in both directions and the emptying and filling pipe B is fully open). After all the air bubbles in the measuring connecting pipe DN17 at the bottom of the measuring cylinder B are discharged, open the emptying and filling valve BF5 (19) (the measuring connecting pipe is open in both directions and the emptying and filling pipe B is closed). Finally, turn on the measuring replenishment pump B1 (29) to fill the measuring cylinder A (1). When liquid flows out of the overflow pipe (DN17) (5) of the measuring cylinder B, turn off the measuring replenishment pump B1 (29) and let it stand for a period of time to wait for all the air bubbles in the measuring cylinder to dissipate.

[0100] Continue this process to fill the connecting pipe for the next diameter measurement. After completion, turn off the emptying pump B2 and wait for the measurement.

[0101] S2: Testing for different pipe diameters

[0102] Turn on the measuring replenishment pump B1(29) and run it for 10 minutes; turn off the measuring replenishment pump B1(29) and stabilize it for 1 minute; open the measuring electric valve B(DF5)(16); collect the water level data H40-17 (H40-17 represents a 40m long, 17mm diameter pipe) and temperature data T40-17 from the magnetostrictive level gauge SW1(2) every 10 seconds and record them; until H40-17 equals the equilibrium water level + 0.3mm, close the measuring electric valve B(DF5)(16) and stop collecting data from the magnetostrictive level gauge SW1(2); turn on the measuring replenishment pump B1(29) and run it for 10 minutes; turn off the measuring replenishment pump B1(29). (29) and stabilize for 1 minute; open the measuring electric valve B(DF4)(16); collect the water level data H40-16 and temperature data T40-16 of the magnetostrictive level gauge SW1(2) every 20 seconds and record them; until H40-16 equals the equilibrium water level + 0.3 mm, close the measuring electric valve B(DF4)(16) and stop collecting data from the magnetostrictive level gauge SW1(2); turn on the measuring replenishment pump B1(29) and run for 10 minutes; turn off the measuring replenishment pump B1(29) and stabilize for 1 minute; open the measuring electric valve B(DF3)(16); collect the water level data of the magnetostrictive level gauge SW1(2) every 30 seconds. Data H40-14 and temperature data T40-14 are collected and recorded; until H40-14 equals the equilibrium water level + 0.3mm, the measuring electric valve B(DF3)(16) is closed, and the acquisition of the magnetostrictive level gauge SW1(2) is stopped; the measuring replenishment pump B1(29) is turned on and runs for 10 minutes; the measuring replenishment pump B1(29) is turned off and stabilized for 1 minute; the measuring electric valve B(DF2)(16) is turned on; the water level data H40-12 and temperature data T40-12 of the magnetostrictive level gauge SW1(2) are collected every 40s and recorded; until H40-12 equals the equilibrium water level + 0.3mm, the measuring electric valve B(DF3)(16) is turned off. Turn off electric valve B(DF2)(16) to stop collecting data from magnetostrictive level gauge SW1(2); turn on measuring replenishment pump B1(29) and run for 10 minutes; turn off measuring replenishment pump B1(29) and stabilize for 1 minute; turn on electric valve B(DF1)(16); collect water level data H40-10 and temperature data T40-10 from magnetostrictive level gauge SW1(2) every 40 seconds and record them; until H40-10 equals the equilibrium water level + 0.3 mm, turn off electric valve B(DF1)(16) and stop collecting data from magnetostrictive level gauge SW1(2), and so on to conduct the next test of connecting pipes of different diameters with different pipe lengths.

[0103] S3: Procedure for emptying connecting pipes, graduated cylinders, and liquid storage tanks

[0104] Open all pipe-changing valve groups: 40m valve group (34), 80m valve group (35), 120m valve group (36), and 160m valve group (37) (measure that the connecting pipe is open in both directions and closed in the short pipe direction), drain and fill valves AF1~AF5 (21) (measure that the connecting pipe is open in both directions and closed in the drain and fill pipe A direction), BF5~BF1 (19) (measure that the connecting pipe is fully open in both directions and the drain and fill pipe B direction), manual valves (DA1~DA15), and manual valves (DB5~D B1)13 and measuring electric valve B (DF5~DF1)(16), turn on the empty filling pump B2(24), after the liquid in measuring cylinder A1 and measuring cylinder B9 is emptied, open the empty filling valves BF5~BF1 in sequence (the direction of the rear measuring connecting pipe and the empty filling pipe B is open, and the direction of the measuring connecting pipe on the measuring cylinder side is closed), and discharge all the liquid in each measuring connecting pipe one by one; the liquid in the storage tank is drained by putting the empty filling pipe C (DN17)22 into the original liquid storage tank.

[0105] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated testing device for response time and measurement error of a pipeline system using a connecting pipe monitoring equipment, characterized in that, It includes a fluid supply system, sensor devices, connecting pipe system, data acquisition devices, and a control workstation; A fluid supply system for storing fluids of different viscosities and controlling their circulation includes a storage tank (28) into which various fluids such as water, gasoline, ethylene glycol, and antifreeze can be added. Sensor devices for real-time monitoring of liquid level and ambient temperature in graduated cylinder include magnetostrictive level gauge SW1(2) for real-time and accurate measurement of liquid level changes in graduated cylinder; The connecting pipe system is composed of pipes of different diameters and lengths, used to simulate liquid communication environments under different engineering conditions. The connecting pipe system includes measuring cylinder A (1) and measuring cylinder B (9), which are used to form a liquid level balancing device. A data acquisition device, connected to the sensor device, is used to monitor liquid level changes in real time, calculate response time, and measure error; The control workstation is communicatively connected to the data acquisition device and is used to run test programs, store test data, and output the optimal monitoring design scheme.

2. The automated testing device for response time and measurement error of a pipeline system under a connecting pipe monitoring device according to claim 1, characterized in that: A measuring replenishment pump B1 (29) is fixedly installed on one side of the liquid storage tank (28). One side of the liquid storage tank (28) is fixedly connected to the emptying and filling pump B2 (24) through a connecting pipe. An anti-foaming baffle (30) is fixedly connected inside the liquid storage tank (28). A cover opening (51) is opened on one side of the liquid storage tank (28). A baffle opening (52) is opened on one side of the anti-foaming baffle (30). A cover plate (27) is hinged to one side of the liquid storage tank (28).

3. The automated testing device for response time and measurement error of a pipeline system using a connecting pipe monitoring device according to claim 1, characterized in that: The sensor device includes a magnetostrictive level gauge SW1(2), which is fixedly installed inside the measuring cylinder A(1). The signal output terminal of the magnetostrictive level gauge SW1(2) is connected to a data acquisition device.

4. The automated testing device for response time and measurement error of a pipeline system using a connecting pipe monitoring device according to claim 1, characterized in that: The connecting pipe system also includes a measuring replenishment pipe DN10 (3) for replenishing liquid via a measuring replenishment pump B1 (29); An overflow prevention pipe DN17(5) is used to prevent excessive overflow of the connecting liquid in measuring cylinder A and measuring cylinder B; Manual valves (A1~A15)(4) are used to control the initial liquid level in graduated cylinder A; Manual valves (DB5~DB1)(13) and manual valves (DA1~DA5)(15) are used to control the flow of liquids connecting the graduated cylinder with different pipe diameters and lengths; The manual valve B(10), the electric valve DF0(11), and the manual valve B(12) of the balance connecting pipe are used to connect the measuring cylinder A(1) and the measuring cylinder B(9) to form an initial balance. The electric valves DFya (8) and B (DF5~DF1) (16) of the overflow pipe B are used to realize automated control testing. The overflow pipes A1 to A15 (DN17) (6) are used to adjust the height of the liquid in the measuring cylinder A; Measuring overflow pipe B (DN17)(7) is used to control the balance liquid level of the circulating liquid in measuring cylinder B; The balancing connecting pipe (DN19)(14) is used to control the discharge of air bubbles and balance the liquid level in graduated cylinder A; Measuring connecting pipe B (DN17~DN10) (17) and measuring connecting pipe A (DN10~DN17) (18) are used to form connecting pipes of different diameters; Pipe-changing valve assembly (20) is used to control the connection of connecting pipes of different diameters; The drain and fill valves BF5~BF1(19) and AF1~AF5(21) are used to control the air venting bubbles. Drain filling pipe C (DN17) (22), drain filling pipe B (DN17) (23), drain filling pipe A (DN10~DN17) (25) are used to drain air bubbles and connect liquid; 40m valve group (34), 80m valve group (35), 120m valve group (36), and 160m valve group (37) are used to adjust the length of different pipe diameters.

5. The automated testing device for response time and measurement error of a pipeline system using a connecting pipe monitoring device according to claim 1, characterized in that: The data acquisition device (31) is connected to the magnetostrictive level gauge SW1 (2), the measuring replenishment pump B1 (29), the emptying and filling pump B2 (24), the measuring overflow pipe B electric valve DFya (8), the measuring electric valve B (DF5~DF1) (16) and the balancing electric valve DF0 (11) via the cable (26).

6. The automated testing device for response time and measurement error of a pipeline system using a connecting pipe monitoring device according to claim 1, characterized in that: The control workstation is a TinkStation P350 or a workstation with equivalent configuration parameters, and is connected to the data acquisition device (33) via a network cable (32).

7. The automated testing device for response time and measurement error of a pipeline system according to any one of claims 1-6, the method of use includes the following steps: S1: Fluid filling procedure for connecting tubes ① Close all manual valves (DA1~DA5)(15) at the bottom of measuring cylinder A(1) and manual valves (A1~A15)(4) at the side wall measuring overflow pipe. Close all manual valves (DB5~DB1)(13) at the bottom of measuring cylinder B(9) and electric valve DFya(8) at the side wall measuring overflow pipe B. Open manual valve B(10), electric valve DF0(11), and manual valve A(12) at the balance connecting pipe. Turn on measuring replenishment pump B1(29) to fill measuring cylinder A(1). When liquid flows out from the anti-overflow pipe (DN17)(5) on the side wall of measuring cylinder B(9), turn off measuring replenishment pump B1(29). Let stand for a period of time and wait for all the liquid bubbles in the measuring cylinder to dissipate. ② Open all the pipe-changing valve groups: 40m valve group (34), 80m valve group (35), 120m valve group (36), and 160m valve group (37) (the measuring connecting pipe is open in both directions, and closed in the short pipe direction) and the emptying and filling valves AF1~AF5 (21) and BF5~BF1 (19) (the measuring connecting pipe and the emptying and filling pipe are open in the direction of the rear measuring connecting pipe, and closed in the direction of the measuring connecting pipe on the measuring cylinder side). Turn on the emptying and filling pump B2 (24). After the 200m DN17 measuring connecting pipe is filled with liquid, open the pipe-changing valve groups in the order of 160m, 120m, 80m, and 40m (the measuring connecting pipe and the short pipe are open in the direction of the measuring cylinder side, and closed in the direction of the rear measuring connecting pipe). Generally, after the air bubbles in the short pipes of each length of the pipe-changing valve group are discharged, switch to the next set of length pipe-changing valves. After all the air bubbles in the short pipes of the DN17 measuring connecting pipe are discharged, open the bottom DN17 measuring valve of the measuring cylinder A in sequence. Manual valve DA5 (15) and emptying and filling valve AF5 (21) of the connecting pipe (the measuring connecting pipe is open in both directions and the emptying and filling pipe A is closed). After all the air bubbles in the measuring connecting pipe DN17 at the bottom of measuring cylinder A are discharged, open the manual valve DB5 (13), electric valve B (DF5) (16) and emptying and filling valve BF5 (19) of the measuring connecting pipe DN17 at the bottom of measuring cylinder B in sequence (the measuring connecting pipe is open in both directions and the emptying and filling pipe B is fully open). After all the air bubbles in the measuring connecting pipe DN17 at the bottom of measuring cylinder B are discharged, open the emptying and filling valve BF5 (19) (the measuring connecting pipe is open in both directions and the emptying and filling pipe B is closed). Finally, turn on the measuring replenishment pump B1 (29) to fill the measuring cylinder A (1). When liquid flows out of the overflow pipe (DN17) (5) of measuring cylinder B, turn off the measuring replenishment pump B1 (29) and let it stand for a period of time to wait for all the air bubbles in the measuring cylinder to dissipate. Continue filling the connecting pipe for the next diameter measurement in this manner. After completion, turn off the empty filling pump B2 and wait for the measurement. S2: Testing for different pipe diameters Turn on the measuring replenishment pump B1(29) and run it for 10 minutes; turn off the measuring replenishment pump B1(29) and stabilize it for 1 minute; open the measuring electric valve B(DF5)(16); collect the water level data H40-17 (H40-17 represents a 40m long pipe with a 17mm diameter) and temperature data T40-17 from the magnetostrictive level gauge SW1(2) every 10 seconds and record them; until H40-17 equals the equilibrium water level + 0.3mm, close the measuring electric valve B(DF5)(16) and stop collecting data from the magnetostrictive level gauge SW1(2); turn on the measuring replenishment pump B1(29) and run it for 10 minutes; turn off the measuring replenishment pump B1(29) and stabilize it for 1 minute. Open the measuring electric valve B(DF4)(16); collect the water level data H40-16 and temperature data T40-16 of the magnetostrictive level gauge SW1(2) every 20s and record them; until H40-16 equals the equilibrium water level + 0.3mm, close the measuring electric valve B(DF4)(16) and stop collecting data from the magnetostrictive level gauge SW1(2); turn on the measuring replenishment pump B1(29) and run it for 10 minutes; turn off the measuring replenishment pump B1(29) and stabilize it for 1 minute; Open the measuring electric valve B(DF3)(16); collect the water level data H40-14 and temperature data T40-14 of the magnetostrictive level gauge SW1(2) every 30s and record them; until H40-14 equals the equilibrium water level + 0.3mm, close the measuring electric valve B(DF3)(16) and stop collecting data from the magnetostrictive level gauge SW1(2); turn on the measuring replenishment pump B1(29) and run it for 10 minutes; turn off the measuring replenishment pump B1(29) and stabilize it for 1 minute; open the measuring electric valve B(DF2)(16); collect the water level data H40-12 and temperature data T40-12 of the magnetostrictive level gauge SW1(2) every 40s and record them; until H40- 12 equals the equilibrium water level + 0.3mm, close the measuring electric valve B(DF2)(16), and stop collecting data from the magnetostrictive level gauge SW1(2); turn on the measuring replenishment pump B1(29) and run for 10 minutes; turn off the measuring replenishment pump B1(29) and stabilize for 1 minute; open the measuring electric valve B(DF1)(16); collect the water level data H40-10 and temperature data T40-10 from the magnetostrictive level gauge SW1(2) every 40s and record them; until H40-10 equals the equilibrium water level + 0.3mm, close the measuring electric valve B(DF1)(16), stop collecting data from the magnetostrictive level gauge SW1(2), and so on to conduct the next test of the connecting pipe with different pipe diameters and pipe lengths; S3: Procedure for emptying connecting pipes, graduated cylinders, and liquid storage tanks Open all pipe-changing valve groups: 40m valve group (34), 80m valve group (35), 120m valve group (36), and 160m valve group (37) (measure that the connecting pipe is open in both directions and closed in the short pipe direction), drain and fill valves AF1~AF5 (21) (measure that the connecting pipe is open in both directions and closed in the drain and fill pipe A direction), BF5~BF1 (19) (measure that the connecting pipe is fully open in both directions and the drain and fill pipe B direction), manual valves (DA1~DA15), and manual valves (DB5~DB1). (13) and measuring electric valve B (DF5~DF1)(16), turn on the empty filling pump B2(24), after the liquid in measuring cylinder A(1) and measuring cylinder B(9) is emptied, open the empty filling valves BF5~BF1 in sequence (the direction of the rear measuring connecting pipe and the empty filling pipe B is open, and the direction of the measuring connecting pipe on the measuring cylinder side is closed), and discharge all the liquid in each measuring connecting pipe one by one; the liquid in the storage tank is drained by putting the empty filling pipe C(DN17)(22) into the original liquid storage tank.

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