An automatic control hydrostatic test system

Abstract

The utility model relates to pressure-bearing equipment test technical field, concretely discloses an automatic control hydrostatic test system, including water pressure spare, controller, water storage tank, high pressure pump, temperature detection unit, pressure detection unit and recovery unit, and controller is connected with temperature detection unit, pressure detection unit, recovery unit and high pressure pump electricity respectively, and the input end of high pressure pump and the output end of recovery unit are connected with water storage tank through water pipe respectively, and the input end of temperature detection unit is connected with the output end of high pressure pump through water pipe, and the lower extreme of water pressure spare is connected with the output end of temperature detection unit and the input end of recovery unit through water pipe respectively. The safety of pressure-bearing equipment is low because the pressure control of existing hydrostatic test device is not stable, and water temperature does not meet the demand, and the problem that water resource is wasted because water cannot be recycled and utilized.

Description

Technical Field

[0001] This utility model relates to the field of pressure equipment testing technology, and specifically discloses an automatic control water pressure testing system. Background Technology

[0002] Pressure equipment, including its components, typically undergoes a hydrostatic test after manufacturing in the factory to verify its strength and sealing performance, ensuring its safety during use. The hydrostatic test itself not only carries inherent safety hazards, but also poses potential safety risks during subsequent installation and use if the pressure equipment has not undergone a compliant hydrostatic test. Currently, the various stages of hydrostatic testing conducted by pressure equipment manufacturers are relatively fragmented, lacking centralized control, and the following problems frequently occur during hydrostatic testing:

[0003] 1. Unstable water pressure control during hydrostatic testing. Factors causing unstable water pressure during hydrostatic testing include: 1) Pipeline leaks or pump malfunctions, resulting in unstable pressure or failure to meet the required hydrostatic test pressure value; 2) Inaccurate pressure control during water filling, leading to hydrostatic test pressure exceeding the design requirements, causing irreversible damage to hydrostatic components with insufficient material strength, posing a significant safety hazard.

[0004] 2. The water temperature during the hydrostatic test does not meet the design requirements. Too low a water temperature will cause condensation on the surface of the hydrostatic components, affecting the judgment of the test results; too high a water temperature will cause vaporization and excessive thermal stress, affecting the hydrostatic components. For hydrostatic components made of alloy steel, if the water temperature during the hydrostatic test is close to the brittle transition temperature of the alloy steel material, it will cause the alloy steel material to be at risk of brittle fracture.

[0005] 3. The water used in the hydrostatic test cannot be recycled, resulting in a waste of water resources. Utility Model Content

[0006] The purpose of this invention is to provide an automatic control water pressure test system to solve the problems of unstable pressure control, insufficient water temperature leading to low safety of pressure-bearing equipment, and water waste caused by the inability to recycle and reuse water in existing water pressure test devices.

[0007] The specific solution of this utility model is as follows:

[0008] An automatic control water pressure testing system includes a water pressure component, a controller, a water storage tank, a high-pressure pump, a temperature detection unit, a pressure detection unit, and a recovery unit. The controller is electrically connected to the temperature detection unit, the pressure detection unit, the recovery unit, and the high-pressure pump. The water storage tank is connected to the input end of the high-pressure pump and the output end of the recovery unit via water pipes. The output end of the high-pressure pump is connected to the input end of the temperature detection unit via a water pipe. The lower end of the water pressure component is connected to the output end of the temperature detection unit and the input end of the recovery unit via water pipes.

[0009] In some embodiments, the temperature detection unit includes a temperature measuring device and a heating device. The input end of the heating device is connected to the output end of the high-pressure pump via a water pipe, and the output end of the heating device is connected to the lower end of the water pressure component via a water pipe. The temperature measuring device is disposed on the water pipe between the output end of the high-pressure pump and the input end of the heating device. The temperature measuring device and the heating device are electrically connected to the controller.

[0010] In some embodiments, the pressure detection unit includes an automatic recording pressure gauge, which is mounted on the water pressure component and electrically connected to the controller.

[0011] In some embodiments, the recycling unit includes an electric gate valve, the output end of which is connected to a water storage tank via a water pipe, the input end of which is connected to the lower end of a water pressure component via a water pipe, and the electric gate valve is electrically connected to a controller.

[0012] In some embodiments, the recycling unit further includes a return water filtration trench, in which a return water filter screen is provided. The input end of the return water filtration trench is connected to the output end of an electric gate valve via a water pipe, and the output end of the return water filtration trench is connected to a water storage tank via a water pipe.

[0013] In some embodiments, a water supply filter screen is provided in the water storage tank, and the water supply filter screen is connected to the input end of the high-pressure pump through a water pipe.

[0014] In some embodiments, the system further includes a water quality detection unit, the acquisition end of which is connected to a water storage tank via a water pipe, and the signal output end of which is electrically connected to a controller.

[0015] In some embodiments, the water quality testing unit includes a chloride ion detection device, the acquisition end of which is connected to a water storage tank via a water pipe, and the signal output end of which is connected to a controller.

[0016] An automatic control water pressure testing system includes a water pressure component, a controller, a water storage tank, a high-pressure pump, a temperature detection unit, a pressure detection unit, and a recovery unit. The controller is electrically connected to the temperature detection unit, the pressure detection unit, the recovery unit, and the high-pressure pump. The water storage tank is connected to the input end of the high-pressure pump and the output end of the recovery unit via water pipes. The output end of the high-pressure pump is connected to the input end of the temperature detection unit via a water pipe. The lower end of the water pressure component is connected to the output end of the temperature detection unit and the input end of the recovery unit via water pipes.

[0017] In some embodiments, the temperature detection unit includes a temperature measuring device and a heating device. The input end of the heating device is connected to the output end of the high-pressure pump via a water pipe, and the output end of the heating device is connected to the lower end of the water pressure component via a water pipe. The temperature measuring device is installed on the water pipe between the output end of the high-pressure pump and the output end of the heating device. The temperature measuring device and the heating device are electrically connected to the controller.

[0018] In some embodiments, the pressure detection unit includes an automatic recording pressure gauge, which is mounted on the water pressure component and electrically connected to the controller.

[0019] In some embodiments, the recycling unit includes an electric gate valve, the output end of which is connected to a water storage tank via a water pipe, the input end of which is connected to the lower end of a water pressure component via a water pipe, and the electric gate valve is electrically connected to a controller.

[0020] In some embodiments, the recycling unit further includes a return water filtration trench, in which a return water filter screen is provided. The input end of the return water filtration trench is connected to the output end of an electric gate valve via a water pipe, and the output end of the return water filtration trench is connected to a water storage tank via a water pipe.

[0021] In some embodiments, a water supply filter screen is provided in the water storage tank, and the water supply filter screen is connected to the input end of the high-pressure pump through a water pipe.

[0022] In some embodiments, the system further includes a water quality detection unit, the acquisition end of which is connected to a water storage tank via a water pipe, and the signal output end of which is electrically connected to a controller.

[0023] In some embodiments, the water quality testing unit includes a chloride ion detection device, the acquisition end of which is connected to a water storage tank via a water pipe, and the signal output end of which is connected to a controller.

[0024] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0025] 1. This utility model achieves centralized automated control of water pressure testing for pressure-bearing equipment through a controller, water quality detection unit, temperature detection unit, pressure detection unit, and recycling unit. The cooperation between the pressure detection unit and the controller improves the accuracy of pressure control. The cooperation between the temperature detection unit and the controller ensures that the water temperature meets the requirements, avoiding the risk of water pressure components being affected by excessively low or high water temperatures. The water quality detection unit avoids the risk of corrosion of water pressure components caused by unacceptable chloride ion content in the water. The recycling unit recycles and reuses water, avoiding waste of water resources and improving the utilization rate of water resources, thereby improving the safety of pressure-bearing equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an automatic control water pressure test system according to Embodiment 1 of this utility model.

[0027] Attached reference numerals: 1-Water storage tank, 2-Water pipe, 3-High-pressure pump, 4-Water pressure component, 5-Controller, 6-Chloride ion detection device, 7-Temperature measuring device, 8-Heating device, 9-Automatic recording pressure gauge, 10-Electric gate valve, 11-Return water filter trench, 12-Water supply filter screen, 13-Return water filter screen. Detailed Implementation

[0028] The specific implementation method is described below with reference to the accompanying drawings.

[0029] Example 1

[0030] An automatic control water pressure testing system, such as Figure 1 As shown, the device includes a water pressure component 4, a controller 5, a water storage tank 1, a high-pressure pump 3, a temperature detection unit, a pressure detection unit, and a recovery unit. The controller 5 is electrically connected to the temperature detection unit, the pressure detection unit, the recovery unit, and the high-pressure pump 3. The water storage tank 1 is connected to the input end of the high-pressure pump and the output end of the recovery unit via water pipes 2. The output end of the high-pressure pump is connected to the input end of the temperature detection unit via water pipes 2. The lower end of the water pressure component is connected to the output end of the temperature detection unit and the input end of the recovery unit via water pipes 2.

[0031] Among them, controller 5 uses the SUPC_BPXT_10 controller manufactured by Siminte Technology.

[0032] The controller 5 can draw a pressure curve of water pressure change process and generate a water pressure test report based on the real-time pressure data fed back by the automatic recording pressure gauge 9. This makes the water pressure record timely, accurate, and effective, and has strong authority, thus safeguarding the quality management of enterprises. It solves the problem of water pressure test reports being filled out improperly or with inconsistent content with the actual situation, resulting in inaccurate reports and suspicion of false reports.

[0033] Water storage tank 1 is usually buried underground, which can play a certain role in heat preservation in winter and can save the amount of industrial gas used to a certain extent.

[0034] The recycling unit enables a high water recycling rate, reaching over 95%, which can save manufacturing enterprises more than 95% of industrial water used for water pressure testing annually.

[0035] In some embodiments, the temperature detection unit includes a temperature measuring device 7 and a heating device 8. The input end of the heating device is connected to the output end of the high-pressure pump through a water pipe 2, and the output end of the heating device is connected to the lower end of the water pressure component through a water pipe 2. The temperature measuring device 7 is disposed on the water pipe between the output end of the high-pressure pump and the input end of the heating device. The temperature measuring device 7 and the heating device 8 are electrically connected to the controller 5 respectively.

[0036] Among them, the temperature measuring device 7 uses a PY210HZ temperature sensor.

[0037] The water temperature is detected in real time by the temperature measuring device 7 and the water temperature data is transmitted to the controller 5. The controller 5 automatically determines whether to heat the water based on the real-time detected water temperature. If the controller 5 determines that heating is required, it controls the heating device to heat the water so that the water temperature meets the requirements. The heating temperature control is sensitive and there will be no phenomenon of insufficient heating or overheating.

[0038] In some embodiments, the pressure detection unit includes an automatic recording pressure gauge 9, which is mounted on the water pressure component and is electrically connected to the controller 5.

[0039] Among them, the automatic recording pressure gauge 9 adopts the YB-100ZQ digital pressure gauge.

[0040] In some embodiments, the recycling unit includes an electric gate valve 10, the output end of which is connected to a water storage tank 1 via a water pipe 2, the input end of which is connected to the lower end of a water pressure component via a water pipe 2, and the electric gate valve 10 is electrically connected to a controller 5.

[0041] Among them, the electric gate valve 10 adopts the Z962Y-320R electric gate valve.

[0042] The pressure is detected in real time by the pressure gauge 9 and the pressure data is transmitted to the controller 5. The controller 5 controls the high-pressure pump 3 and the electric gate valve 10 to adjust the pressure in a timely manner according to the real-time pressure detection, so as to achieve precise pressure control, avoid large deviations between the actual water pressure test pressure value and the design water pressure test pressure value, and more stably protect the water pressure component 4. It prevents the water pressure component from being damaged due to excessive pressure during the water pressure test, and avoids the need for repeated rework in the water pressure test process, saving time and labor costs.

[0043] In some embodiments, the recycling unit further includes a return water filtration trench 11, in which a return water filter screen 13 is provided. The input end of the return water filtration trench is connected to the output end of an electric gate valve via a water pipe 2, and the output end of the return water filtration trench is connected to a water storage tank 1 via a water pipe 2.

[0044] The recycled water is filtered by sedimentation through the return water filter screen 13 in the return water filtration trench, which ensures the quality of the water. The filtered water quality basically meets the requirements of clean water.

[0045] In some embodiments, a water supply filter 12 is provided in the water storage tank, and the water supply filter 12 is connected to the input end of the high-pressure pump through a water pipe 2.

[0046] The water flowing to the high-pressure pump 3 is filtered by the water supply filter screen 12 in the water storage tank, which not only ensures the quality of the water, but also prevents impurities in the water from entering the high-pressure pump 3 and affecting it.

[0047] In some embodiments, a water quality detection unit is also included. The acquisition end of the water quality detection unit is connected to the water storage tank 1 through the water pipe 2, and the signal output end of the water quality detection unit is electrically connected to the controller 5.

[0048] In some embodiments, the water quality testing unit includes a chloride ion detection device 6, the acquisition end of which is connected to the water storage tank 1 via a water pipe 2, and the signal output end of which is connected to the controller 5.

[0049] Among them, the chloride ion detection device 6 adopts the HC-800 chloride ion analyzer.

[0050] The chloride ion detection device 6 detects the chloride ion content in the water and transmits the chloride ion content data to the controller 5. The controller 5 determines whether the water in the storage tank meets the requirements based on the chloride ion content data, thus avoiding corrosion of the water pressure components 4 due to unsuitable water quality.

[0051] Because the water circulation of the automatic control water pressure test system adopts closed-loop management, the water is not easily polluted during the recycling process, and the water quality remains unchanged. When there are no special requirements for the water, the chloride ion content in the water does not need to be re-measured and controlled for each water pressure test, which saves on usage costs and labor costs.

[0052] The system utilizes a controller, water quality detection unit, temperature detection unit, pressure detection unit, and recycling unit to achieve centralized automated control of water pressure testing for pressure-bearing equipment. The coordination between the pressure detection unit and the controller improves pressure control accuracy. The temperature detection unit and controller ensure that the water temperature meets requirements, avoiding the risk of water pressure components being affected by excessively low or high water temperatures. The water quality detection unit prevents the risk of corrosion of water pressure components caused by unacceptable chloride ion content in the water. The recycling unit recycles and reuses water, avoiding waste and improving water resource utilization, thereby enhancing the safety of the pressure-bearing equipment.

[0053] The working process of the automatic control hydrostatic testing system:

[0054] The user inputs basic information about the hydraulic component, such as its name, drawing number, and material, into the controller according to the hydraulic test process plan. The user then selects the relevant type on the controller interface, such as boiler, pressure vessel, or pressure pipeline. The controller 5 then drafts a hydraulic test implementation plan based on the user's input. The user reviews the implementation plan to ensure it meets the process requirements and modifies any discrepancies to ensure the real-time hydraulic test plan complies with the process requirements. After finalizing the implementation plan, the hydraulic test begins.

[0055] When the water pressure component 4 has no requirement for the chloride ion content in the water, the chloride ion detection device 6 will not be activated, and the high-pressure pump 3 will be activated directly to supply water.

[0056] When the water pressure component 4 has requirements for the chloride ion content in the water, the controller 5 sends a water quality detection signal to the chloride ion detection device 6. After receiving the water quality detection signal, the chloride ion detection device 6 starts to detect the chloride ion content in the water and transmits the chloride ion content detection data to the controller 5. The controller 5 judges whether the water quality detection result meets the requirements based on the chloride ion content detection data. If the water quality detection result meets the requirements, the controller 5 sends a water supply signal to the high-pressure pump 3. After receiving the water supply signal, the high-pressure pump 3 starts to supply water to the water pressure component 4. If the water quality detection result does not meet the requirements, the controller 5 prompts the user that the water quality is substandard and does not start the high-pressure pump 3.

[0057] After the high-pressure pump 3 starts, the water in the storage tank flows through the water supply filter 12 and the water pipe 2 through the temperature detection unit to the water pressure component 4. When the high-pressure pump 3 starts to supply water, the controller 5 controls the temperature measuring device 7 to start detecting the water temperature. The temperature measuring device 7 transmits the detected water temperature data to the controller 5. The controller 5 determines whether the heating device 8 needs to be started based on the detected water temperature data and the water temperature requirements of the water pressure component.

[0058] When the water pressure component 4 has no special requirements for water temperature, if the temperature measuring device 7 detects that the water temperature in the water storage tank at the ambient temperature is equal to or higher than 5℃, the heating device 8 will not be started. If the temperature measuring device detects that the water temperature in the water storage tank at the ambient temperature is lower than 5℃, the controller 5 will control the heating device 8 to start so that the water temperature reaches 5℃.

[0059] When the water pressure component 4 has specific temperature requirements for the water, the required temperature is input into the controller, such as 40℃. If the temperature measuring device 7 detects that the water temperature has not reached 40℃, the controller 5 controls the heating device 8 to start heating the water. Once the water temperature reaches 40℃, the controller 5 controls the heating device 8 to shut down, stopping the heating of the water. By controlling the heating device 8 through the controller 5, the problem of excessively high or low water temperature is prevented, achieving energy saving.

[0060] As water from the storage tank is continuously added to the water pressure component, the pressure of the water pressure component is recorded in real time by the automatic pressure gauge 9, and the pressure data is transmitted to the controller 5. After receiving the pressure data, the controller 5 displays the pressure value of the water pressure test on its panel in real time, and plots a pressure curve based on the pressure data. At the same time, the controller 5 determines whether to increase, maintain, or decrease the pressure based on the pressure data, and performs corresponding actions based on the determination results.

[0061] The pressure test during the hydrostatic test includes a pressure increase test, a pressure holding test, and a pressure decrease test. When the pressure value of the hydrostatic test reaches the designed first pressure increase value, the controller 5 sends a stop signal to the high-pressure pump 3. Upon receiving the stop signal, the high-pressure pump 3 temporarily stops supplying water, and at this time, a pressure holding test is performed on the hydrostatic component 4 at the first pressure increase value. After the pressure holding time is reached, the controller 5 sends a water supply signal to the high-pressure pump 3 again. Upon receiving the water supply signal, the high-pressure pump 3 starts again and continues to supply water and increase pressure. When the pressure value reaches the maximum pressure increase value of the hydrostatic test, the controller 5 sends a shut-off signal to the high-pressure pump 3. Upon receiving the shut-off signal, the high-pressure pump 3 shuts off and stops working. At this time, a pressure holding test is performed on the hydrostatic component 4 at the maximum pressure increase value. After the pressure holding time is reached, the controller 5 sends a drain signal to the electric gate valve 10. Upon receiving the drain signal, the electric gate valve 10 opens and begins to drain water and decrease pressure. When the pressure drops to the designed first pressure reduction value, controller 5 sends a stop signal to electric gate valve 10. Upon receiving the stop signal, electric gate valve 10 closes, and a pressure holding test at the first pressure reduction value is performed on water pressure component 4. After the required pressure holding time is reached, controller 5 sends a drain signal to electric gate valve 10 again. Upon receiving the drain signal, electric gate valve 10 reopens and begins draining to reduce pressure again. When the pressure drops to the minimum pressure reduction value of the water pressure test, controller 5 sends a close signal to electric gate valve 10. Upon receiving the close signal, electric gate valve 10 closes, and stops working. At this time, a pressure holding test at the minimum pressure reduction value is performed on water pressure component 4. After the required pressure holding time is reached, the pressure test is completed.

[0062] For example, water pressure component 4 is a power unit for an electrolytic aluminum plant with an operating voltage of 29 MPa. During the water pressure test, when the voltage reaches the first pressure boosting value of 31.9 MPa, a pressure holding test is performed at the first pressure boosting value for 30 minutes. After the pressure holding time reaches 30 minutes, water supply continues to increase the pressure. When the voltage reaches the maximum pressure boosting value of 43.5 MPa, a pressure holding test is performed at the maximum pressure boosting value for 30 minutes. After the pressure holding time reaches 30 minutes, drainage begins to reduce the pressure. When the voltage drops to the first pressure reduction value of 40.6 MPa, a pressure holding test is performed at the first pressure reduction value for 30 minutes. After the pressure holding time reaches 30 minutes, drainage continues to reduce the pressure. When the voltage drops to the minimum pressure reduction value of 29 MPa, a pressure holding test is performed at the minimum pressure reduction value for 30 minutes. After the pressure holding time reaches 30 minutes, the pressure test is completed.

[0063] During the hydrostatic test, the pressure increase test, pressure holding test, and pressure decrease test are all completed by automatically recording the real-time pressure data of the hydrostatic components to the controller 5 through the pressure gauge 9. The controller 5 controls the high-pressure pump 3 and the electric gate valve 10 to regulate the pressure in real time based on the pressure data, and plots the pressure curve of the water pressure change process and generates a hydrostatic test report, which effectively solves the problems of unstable pressure, untimely recording, and inaccurate reporting during the hydrostatic test.

[0064] After the pressure test of the water pressure test is completed, the controller 5 sends a drainage signal to the electric gate valve 10. After receiving the drainage signal, the electric gate valve 10 opens and starts to drain water until it is completely drained. After the water pressure component 4 drains the water, it is dried by compressed dry air.

[0065] The water discharged from the electric gate valve 10 undergoes sedimentation and filtration through the return water filter screen 13 in the return water filter trench before returning to the water storage tank 1 for secondary sedimentation. By recycling the water filtered through the return water filter screen in the return water filter trench back to the water storage tank, not only is water recycling and reuse achieved, but water quality is also ensured.

[0066] This utility model is not limited to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model shall be included within the protection scope of this utility model.

Claims

1. An automatic control system for water pressure testing, characterized in that: The device includes a water pressure component, a controller, a water storage tank, a high-pressure pump, a temperature detection unit, a pressure detection unit, a recovery unit, and a water quality detection unit. The controller is electrically connected to the temperature detection unit, the pressure detection unit, the recovery unit, and the high-pressure pump. The water storage tank is connected to the input end of the high-pressure pump and the output end of the recovery unit via water pipes. The output end of the high-pressure pump is connected to the input end of the temperature detection unit via a water pipe. The lower end of the water pressure component is connected to the output end of the temperature detection unit and the input end of the recovery unit via water pipes. The acquisition end of the water quality detection unit is connected to the water storage tank via a water pipe. The signal output end of the water quality detection unit is electrically connected to the controller. The recycling unit includes an electric gate valve and a return water filtration trench. The output end of the electric gate valve is connected to a water storage tank via a water pipe, and the input end of the electric gate valve is connected to the lower end of a water pressure component via a water pipe. The electric gate valve is electrically connected to a controller. A return water filter screen is installed in the return water filtration trench. The input end of the return water filtration trench is connected to the output end of the electric gate valve via a water pipe, and the output end of the return water filtration trench is connected to the water storage tank via a water pipe. The water quality testing unit includes a chloride ion detection device. The acquisition end of the chloride ion detection device is connected to the water storage tank through a water pipe, and the signal output end of the chloride ion detection device is connected to the controller.

2. The automatic control water pressure testing system according to claim 1, characterized in that: The temperature detection unit includes a temperature measuring device and a heating device. The input end of the heating device is connected to the output end of the high-pressure pump through a water pipe, and the output end of the heating device is connected to the lower end of the water pressure component through a water pipe. The temperature measuring device is installed on the water pipe between the output end of the high-pressure pump and the input end of the heating device. The temperature measuring device and the heating device are electrically connected to the controller.

3. The automatic control water pressure testing system according to claim 1, characterized in that: The pressure detection unit includes an automatic recording pressure gauge, which is mounted on the water pressure component and is electrically connected to the controller.

4. The automatic control water pressure testing system according to claim 1, characterized in that: The water storage tank is equipped with a water supply filter screen, which is connected to the input end of the high-pressure pump via a water pipe.

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