A multifunctional hydraulic test system

Abstract

This utility model discloses a multifunctional hydrostatic testing system, including a water storage tank, a pressure testing pump, an electric flow regulating valve, a control system, and a pressure sensor. The water storage tank is connected to a water supply pipeline, a first hydrostatic testing pipeline, and a second hydrostatic testing pipeline. A third hydrostatic testing pipeline is connected to the first hydrostatic testing pipeline. All three pipelines are connected to the test container. The water supply pipeline is connected to a water supply system. The pressure testing pump and the electric flow regulating valve are respectively installed on the first and second hydrostatic testing pipelines. The pressure sensor is located at the highest point of the test container. The electric flow regulating valve is connected to the pressure sensor via the control system. The advantages are: the system has a multi-purpose pump function, can remotely adjust the pressure rise and fall rate during hydrostatic testing, and effectively improves the stability of the pressure rise and fall rate and accurately controls the pressure test value through automated control.

Description

Technical Field

[0001] This utility model relates to the field of water pressure testing technology, and in particular to a multifunctional water pressure testing system. Background Technology

[0002] During hydrostatic testing of pressure vessels, multiple pumps are typically used to complete the processes of filling, pressurizing, and pumping water. A typical system includes a test pump, a drain pump, a storage tank, an external water supply system, and valves and instruments. The entire hydrostatic test requires a stepped pressurization and depressurization rate that is stable. Usually, two pumps are used to perform the pressurization and depressurization functions respectively. Adjusting the pressure rise and fall rate requires manually controlling the opening of the throttle valve on the system. This method is difficult to control accurately and poses safety risks. Utility Model Content

[0003] The purpose of this invention is to provide a multifunctional hydrostatic testing system, thereby solving the aforementioned problems existing in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A multifunctional hydrostatic testing system includes a water storage tank, a test pump, an electric flow regulating valve, a control system, and a pressure sensor. The water storage tank is connected to a water supply pipeline, a first hydrostatic testing pipeline, and a second hydrostatic testing pipeline. A third hydrostatic testing pipeline is connected to the first hydrostatic testing pipeline. All three pipelines are connected to a test container. The water supply pipeline is connected to a water supply system. The test pump and the electric flow regulating valve are respectively installed on the first and second hydrostatic testing pipelines. The pressure sensor is located at the highest point of the test container. The electric flow regulating valve is connected to the pressure sensor via the control system. The connection point between the third hydrostatic testing pipeline and the first hydrostatic testing pipeline is located between the water storage tank and the test pump.

[0006] Preferably, the water supply pipeline includes a main water supply line and a branch water supply line. One end of the main water supply line is connected to the water supply system, and the other end of the main water supply line is connected to a water storage tank branch water supply line that is connected to a water storage tank and a test container branch water supply line that is connected to the test container.

[0007] A shut-off valve 2 is installed on the main water supply line; a shut-off valve 1 and a shut-off valve 3 are respectively installed on the water supply branch line of the water storage tank and the water supply branch line of the test container.

[0008] Preferably, the test container is connected to a main test line, and the test container water supply branch, the first water pressure test pipeline, the second water pressure test pipeline and the third water pressure test pipeline are all connected to the test container via the main test line; a shut-off valve 8 is provided on the main test line.

[0009] Preferably, one end of the main test pipeline is connected to the test container, and the other end of the main test pipeline is connected to a test branch and a water supply branch for the test container, respectively. The first water pressure test pipeline, the third water pressure test pipeline, and the second water pressure test pipeline are sequentially and spaced apart on the test branch in a direction away from the main test pipeline.

[0010] A shut-off valve 4 is installed on the test branch, which is located on the test branch between the test main line and the first water pressure test pipeline.

[0011] Preferably, the first pipeline for the water pressure test is further provided with a shut-off valve 9, a pressure gauge 1, and a shut-off valve 5; the pressure gauge 1 and the shut-off valve 5 are sequentially spaced between the test pump and the test branch; the shut-off valve 9 is located between the water storage tank and the test pump.

[0012] Preferably, a one-way valve is also provided on the first pipeline of the water pressure test, and the one-way valve is located between the pressure gauge 1 and the test pump.

[0013] Preferably, a safety valve is also provided on the second pipeline for the water pressure test; the safety valve is located on the side of the electric flow regulating valve away from the water storage tank, and the connection point between the test branch and the second pipeline for the water pressure test is located between the electric flow regulating valve and the safety valve.

[0014] Preferably, a shut-off valve 7 is provided on the third test pipeline.

[0015] Preferably, a pressure gauge 2 is also provided at the highest point of the top of the test container.

[0016] Preferably, a drain pipe is also connected to the first water pressure test pipeline, and the connection point between the drain pipe and the first water pressure test pipeline is located between the pressure gauge 1 and the shut-off valve 5; a shut-off valve 6 is provided on the drain pipe.

[0017] The beneficial effects of this utility model are as follows: 1. The system has a multi-purpose pump function, enabling remote adjustment of the pressure rise and fall rate during water pressure testing. Through automated control, it effectively improves the stability of the pressure rise and fall rate and accurately controls the pressure test value. Simultaneously, while fulfilling the testing function, the system effectively simplifies the water pressure testing process and reduces the number of critical equipment required. 2. Using a single test pump, through valve combination and system design optimization, it integrates pressurization and drainage functions, reducing the need for a separate drainage pump. 3. By setting an electric flow regulating valve, the pressure rise and fall rate during water pressure testing can be remotely controlled, improving the safety of the water pressure testing process. 4. By installing a pressure sensor on the top of the pressure vessel, linking it to the electric flow regulating valve, and establishing a control system, it achieves automated control of the pressure rise rate during the water pressure testing process. 5. Developed water pressure testing data acquisition software records changes in parameters such as water pressure in real time and automatically generates pressure curves; it also has an alarm function, automatically alerting when the pressure rise and fall rate or test pressure exceeds specified requirements. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the multifunctional hydrostatic testing system in this embodiment of the present invention;

[0019] Figure 2 This is a structural diagram of the water supply circuit of the multifunctional test system in this embodiment of the utility model;

[0020] Figure 3 This is a structural diagram of the water pressure test circuit of the multifunctional test system in this utility model embodiment;

[0021] Figure 4 This is a diagram of the data acquisition channel settings interface of the water pressure test data acquisition software in this embodiment of the present invention;

[0022] Figure 5 This is a diagram of the data acquisition interface of the water pressure test data acquisition software in this embodiment of the present invention;

[0023] Figure 6 This is an interface diagram showing the relationship between channel data and time progress in the water pressure test data acquisition software in this embodiment of the utility model. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0025] In this embodiment, to reduce the number of critical system devices, improve the safety of hydrostatic testing, and simultaneously incorporate intelligent control methods, a multifunctional hydrostatic testing system is provided, such as... Figure 1As shown, the system includes a water storage tank, a pressure testing pump, an electric flow regulating valve, a control system, and a pressure sensor. The water storage tank is connected via flanges to a water supply pipeline, a first water pressure testing pipeline, and a second water pressure testing pipeline. A third water pressure testing pipeline is connected to the first water pressure testing pipeline. All three pipelines—the water supply pipeline, the first water pressure testing pipeline, the second water pressure testing pipeline, and the third water pressure testing pipeline—are connected to the test container. The water supply pipeline is connected to a water supply system. The pressure testing pump and the electric flow regulating valve are respectively installed on the first and second water pressure testing pipelines. The pressure sensor is located at the highest point of the test container. The electric flow regulating valve is connected to the pressure sensor via the control system. The connection point between the third water pressure testing pipeline and the first water pressure testing pipeline is located between the water storage tank and the pressure testing pump.

[0026] In this embodiment, the test container is the target pressure vessel for the hydrostatic test, and the water storage tank is the reserve container for the water used during the hydrostatic test pressurization process. The water supply pipeline forms a water supply loop, used to fill the water storage tank and test container with water before the hydrostatic test. The first hydrostatic test pipeline, the second hydrostatic test pipeline, the third hydrostatic test pipeline, and the drainage pipeline together constitute the hydrostatic test loop, which is the main functional loop of the hydrostatic test system. The hydrostatic test loop draws water from the water storage tank and completes the hydrostatic test process on the test container through the corresponding pipelines; simultaneously, the test loop also includes a drainage pipeline, used to drain water from the test container and the water storage tank. The electric flow regulating valve and the control system constitute a hydrostatic process pressure rise and fall rate control loop, used to control and adjust the pressure rise and fall rate during the hydrostatic test.

[0027] 1. Water supply circuit

[0028] like Figure 2 As shown, the water supply pipeline includes a main water supply line and a branch water supply line. One end of the main water supply line is connected to the water supply system interface via a flange. The other end of the main water supply line is connected to a water storage tank branch water supply line and a test container branch water supply line. The water storage tank branch water supply line and the test container branch water supply line are respectively connected to the water storage tank and the test container, and are used to transport water from the water supply system to the water storage tank and the test container.

[0029] A shut-off valve 2 is installed on the main water supply line to control its on / off state; a shut-off valve 1 and a shut-off valve 3 are respectively installed on the water supply branch line of the water storage tank and the water supply branch line of the test container to control their on / off state.

[0030] 2. Test circuit

[0031] like Figure 3As shown, the test container is connected to a main test line, and the water supply circuit and the test circuit converge on the main test line and connect to the test container. A shut-off valve 8 is installed on the main test line to control its on / off state. One end of the main test line is connected to the test container, and the other end is connected to the test container water supply branch and the test branch in the water supply circuit. The test branch is a converging pipeline used to converge the first, second, and third water pressure test pipelines in the test circuit. The first, third, and second water pressure test pipelines are sequentially connected to the test branch at intervals along a direction away from the main test line. A shut-off valve 4 is installed on the test branch to control its on / off state, and the shut-off valve 4 is located on the test branch between the main test line and the first water pressure test pipeline.

[0032] In this embodiment, the first pipeline of the water pressure test in the test circuit is also equipped with a shut-off valve 9 for controlling its on / off state, a pressure gauge 1 for measuring water pressure, and a shut-off valve 5 for controlling its on / off state; the pressure gauge 1 and the shut-off valve 5 are arranged sequentially and alternately between the test pump and the test branch; the shut-off valve 9 is arranged between the water storage tank and the test pump.

[0033] The first pipeline of the water pressure test is also equipped with a one-way valve to ensure unidirectional water flow in the pipeline. The one-way valve is located between the pressure gauge 1 and the test pump.

[0034] The second water pressure test pipeline in the test circuit is also equipped with a safety valve to prevent the pipeline from being dangerous due to excessive pressure; the safety valve is located on the side of the electric flow regulating valve away from the water storage tank, and the connection point between the test branch and the second water pressure test pipeline is located between the electric flow regulating valve and the safety valve.

[0035] A shut-off valve 7 is installed on the third test pipeline in the test circuit to control its on / off state.

[0036] The connection point between the drain pipe and the first water pressure test pipe in the test circuit is located between the pressure gauge 1 and the shut-off valve 5. A shut-off valve 6 is installed on the drain pipe to control its on / off state. The end of the drain pipe furthest from the first water pressure test pipe is connected to a discharge port via a flange.

[0037] A pressure gauge 2 for measuring the internal pressure is also installed at the highest point of the test container.

[0038] 3. Water pressure process pressure rise and fall rate control loop: The electric flow regulating valve is set between the water storage tank and the shut-off valve 4. The control system is connected to both the electric flow regulating valve and the pressure sensor. During the water pressure test, the control system hardware adopts a PLC lower computer for logic control, safety control and signal acquisition; a high-quality industrial computer is used as the upper computer for parameter setting, process monitoring, data display and storage.

[0039] Open-loop manual control method for boosting and depressurization rates: The electric flow regulating valve is connected to the control system. A knob is set in the human-machine interface (HMI). The knob, through the rotary encoder and potentiometer in the control system, realizes remote manual fine-tuning control of the opening of the electric flow regulating valve from minimum to maximum / maximum to minimum.

[0040] Closed-loop automatic control method for pressure ramping and depressurization rates: The PLC lower-level computer executes the control program according to the PID control algorithm; the upper-level computer sets the holding pressure, holding time, and pressure ramping and depressurization rate control program, and displays the pressure data dynamically in real time through data acquisition software, and plots the pressure curve (see data acquisition software interface). Figure 4 , Figure 5 , Figure 6 An alarm will be triggered when the pressure rise / fall rate and test requirements are not met.

[0041] In this embodiment, the working process of the hydrostatic testing system is as follows:

[0042] (1) Set the pressure increase, decrease and pressure hold requirements in the control system.

[0043] (2) Water filling of the storage tank: Open stop valve 2 and stop valve 1, close stop valve 3, and water is filled into the storage tank by the water supply system.

[0044] (3) Water injection into the test container: Open stop valve 2, stop valve 3 and stop valve 8, close stop valve 1 and stop valve 4, and inject water into the test container from the water supply system until water overflows from the exhaust pipe at the top of the test container, then close the exhaust pipe.

[0045] (4) Water pressure test pressurization process: Open stop valves 9, 5, 4, and 8, and close stop valves 3, 6, and 7. Manually adjust the knob of the electric flow regulating valve in the control system to adjust the opening of the electric flow regulating valve to the large opening state. Start the test pump and execute the automatic pressure raising, lowering, and holding program. The control system automatically adjusts the valve opening of the electric flow regulating valve to allow some pump water to flow back to the water storage tank to maintain a stable pressure increase rate. Gradually increase and hold the pressure to the test pressure in steps. If manual control is used, the automatic pressure raising, lowering, and holding program is not executed. Manually control the knob on the operation interface and gradually adjust the knob from the maximum to the minimum direction. After the pressure is established, adjust the knob in the opposite direction appropriately to make the pressure rise rate less than the specified requirement. The synchronous data acquisition software collects, displays, and records the pressure change data and pressure curve over time.

[0046] (5) Water pressure test pressure holding process: shut down the test pump, quickly close the shut-off valve 8, hold the test container under pressure, read the pressure inside the test container through pressure gauge 2, and collect and record the pressure change data and pressure curve with synchronous data acquisition software.

[0047] (6) Pressure reduction process of water pressure test: shut off the test pump, close the stop valve 5, open the stop valve 4 and the stop valve 8, execute the automatic pressure increase and decrease and pressure holding program, adjust the opening of the electric flow regulating valve through the control system, and slowly let the test water in the test container flow back to the water storage tank to maintain a stable pressure reduction rate; if manual control is used, the automatic pressure increase and decrease and pressure holding program is not executed, and the knob of the manual control operation interface is gradually adjusted from the minimum to the maximum direction so that the pressure increase rate is less than the specified requirement; the synchronous data acquisition software collects, displays and records the pressure change data and pressure curve over time.

[0048] (7) Drainage process: When the pressure drops to zero, open the stop valve 8, stop valve 4, stop valve 6 and stop valve 7, close the stop valve 5, stop valve 9 and electric flow regulating valve, and start the test pressure pump to pump the test water in the test container to the discharge port.

[0049] By adopting the above-disclosed technical solution of this utility model, the following beneficial effects are obtained:

[0050] This invention provides a multifunctional hydrostatic testing system. The system features a single pump for multiple uses, enabling remote adjustment of the pressure rise and fall rate during hydrostatic testing. Through automated control, it effectively improves the stability of the pressure rise and fall rate and accurately controls the test pressure value. Simultaneously, while fulfilling the testing functions, the system effectively simplifies the hydrostatic testing process and reduces the number of critical equipment required. Using a single test pump, through valve combination and system design optimization, it integrates pressurization and drainage functions, reducing the need for a separate drainage pump. By incorporating an electric flow regulating valve, the pressure rise and fall rate during the hydrostatic test can be remotely controlled, improving the safety of the process. By installing a pressure sensor on the top of the pressure vessel, linking it to the electric flow regulating valve, and establishing a control system, the system achieves automated control of the pressure rise rate during the hydrostatic test. Hydrostatic test data acquisition software has been developed to record changes in parameters such as test pressure in real time and automatically generate pressure curves. It also features an alarm function, automatically alerting the system when the pressure rise and fall rate or test pressure exceeds specified requirements.

[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-functional hydrostatic testing system, characterized by: The utility model provides a water pressure test system, including water storage tank, pressure test pump, electric flow regulating valve, control system and pressure sensor, water storage tank is connected with water supply pipeline, water pressure test first pipeline and water pressure test second pipeline, water pressure test first pipeline is connected with water pressure test third pipeline, water supply pipeline, water pressure test first pipeline, water pressure test second pipeline and water pressure test third pipeline all are connected with test container, water supply pipeline is connected with water supply system, pressure test pump and electric flow regulating valve are arranged respectively on water pressure test first pipeline and water pressure test second pipeline, pressure sensor is arranged at the top highest point of test container, electric flow regulating valve is connected with pressure sensor through control system, the connecting point of water pressure test third pipeline and water pressure test first pipeline is located between water storage tank and pressure test pump.

2. The multi-functional hydrostatic testing system of claim 1, wherein: The water supply pipeline includes a water supply main line and a water supply branch line, one end of the water supply main line is connected with the water supply system, the other end of the water supply main line is connected with a water storage tank water supply branch line and a test container water supply branch line which are communicated with the water storage tank and the test container respectively; A stop valve 2 is arranged on the water supply main line, and a stop valve 1 and a stop valve 3 are arranged on the water storage tank water supply branch line and the test container water supply branch line respectively.

3. The multi-functional hydrostatic testing system of claim 2, wherein: The test container is connected with a test main line, and the test container water supply branch line, the water pressure test first pipeline, the water pressure test second pipeline and the water pressure test third pipeline are connected with the test container through the test main line; a stop valve 8 is arranged on the test main line.

4. The multi-functional hydrostatic testing system of claim 3, wherein: One end of the test main line is connected with the test container, and the other end of the test main line is connected with a test branch line and a test container water supply branch line respectively, and the water pressure test first pipeline, the water pressure test third pipeline and the water pressure test second pipeline are sequentially and spacedly connected on the test branch line in a direction away from the test main line; A stop valve 4 is arranged on the test branch line, and the stop valve 4 is located on the test branch line between the test main line and the water pressure test first pipeline.

5. The multi-functional hydrostatic testing system of claim 4, wherein: A stop valve 9, a pressure gauge 1 and a stop valve 5 are further arranged on the water pressure test first pipeline; the pressure gauge 1 and the stop valve 5 are sequentially and spacedly arranged between the pressure test pump and the test branch line; and the stop valve 9 is arranged between the water storage tank and the pressure test pump.

6. The multi-functional hydrostatic testing system of claim 5, wherein: A check valve is further arranged on the water pressure test first pipeline, and the check valve is located between the pressure gauge 1 and the pressure test pump.

7. The multi-functional hydrostatic testing system of claim 6, wherein: A safety valve is further arranged on the water pressure test second pipeline; the safety valve is located on a side of the electric flow regulating valve away from the water storage tank, and a connecting point of the test branch line and the water pressure test second pipeline is located between the electric flow regulating valve and the safety valve.

8. The multi-functional hydrostatic testing system of claim 7, wherein: A stop valve 7 is arranged on the third test pipeline.

9. The multi-functional hydrostatic testing system of claim 8, wherein: A pressure gauge 2 is further arranged at the top highest point of the test container.

10. The multi-functional hydrostatic testing system of claim 9, wherein: A drainage pipeline is further connected to the water pressure test first pipeline, a connecting point of the drainage pipeline and the water pressure test first pipeline is located between the pressure gauge 1 and the stop valve 5; and a stop valve 6 is arranged on the drainage pipeline.

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