Digital volute hydrostatic test monitoring device

Abstract

The utility model provides a digital volute hydraulic pressure test monitoring device. The digital volute hydraulic pressure test monitoring device comprises a monitoring host, a pressure transmitter, a high-pressure pressurizing pump, a soft starting device, a dial indicator assembly and a monitoring assembly. The monitoring host is electrically connected with the pressure transmitter, the soft start device, the dial indicator assembly and the monitoring assembly. The monitoring assembly comprises a plurality of monitors; the plurality of monitors are uniformly arranged around the volute, and the monitors are electrically connected with the monitoring host; the dial indicator assembly comprises a plurality of electronic dial indicators, a data line and a concentrator; the plurality of electronic dial indicators are uniformly arranged around the volute, and the electronic dial indicators are connected to the monitoring host through the data line and the concentrator; and the soft start device is electrically connected with the high-pressure pressurizing pump, so that the problems that the volute hydraulic pressure test is not monitored in time and is dangerous are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water pressure test monitoring, and particularly relates to a digital spiral case water pressure test monitoring device. BACKGROUND

[0002] After the split spiral case is assembled and welded, the weld strength needs to be detected through a water pressure test, and internal residual stress generated during welding is released. Since the spiral case is a water turbine water inlet part and is installed between a water inlet valve and a seat ring, water flowing from a high-pressure pipeline is uniformly and symmetrically introduced into a runner, and the spiral case plays a key role in converting water flow kinetic energy into pressure energy. Therefore, it is particularly important to test the performance of the spiral case through a water pressure test.

[0003] The outer size of a spiral case body of a pumped storage power station is usually greater than 10 m, and the height is greater than 2.5 m. The pressure test of the equipment is performed at a unit installation station. Since the equipment has a large outer size, there are tail water pipe holes inside, and there are installation equipment such as steel bars and pipelines outside, the site condition is complex, and many difficulties are usually encountered in the actual monitoring process. In the related technology, a mechanical dial gauge is arranged on the body of the spiral case, the deformation size is recorded through stage-by-stage fixed-point inspection by personnel, and the deformation of the spiral case during the test is controlled. A mechanical pressure gauge is arranged on the water inlet side of the spiral case, and the test pressure of the spiral case is continuously adjusted by observing the indication and controlling the booster pump through on-site technical personnel. In addition, the personnel on site need to regularly patrol and check the leakage of the sealing of the spiral case pressure tool and the seepage of the key parts. Since the data acquisition and analysis condition has a delay, the process monitoring and negative feedback adjustment of the spiral case water pressure test have a lag, the test process cannot be timely analyzed or interrupted according to the actual deformation condition, and at the same time, the on-site patrol of the personnel has a certain risk, which can easily cause great loss to the life and property safety of the construction personnel. CONTENT OF THE UTILITY MODEL

[0004] The application provides a digital spiral case water pressure test monitoring device to solve the problem that the spiral case water pressure test monitoring is not timely and dangerous.

[0005] The application provides a digital spiral case water pressure test monitoring device, which comprises a monitoring host, a pressure transmitter, a high-pressure pressure pump, a soft start device, a dial gauge assembly and a monitoring assembly. The monitoring host is electrically connected with the pressure transmitter, the soft start device, the dial gauge assembly and the monitoring assembly. The monitoring assembly comprises a plurality of monitors. The monitors are uniformly arranged around the spiral case and are electrically connected with the monitoring host. The dial gauge assembly comprises a plurality of electronic dial gauges, data lines and a concentrator. The electronic dial gauges are uniformly arranged around the spiral case and are connected to the monitoring host through the data lines and the concentrator. The soft start device is electrically connected with the high-pressure pressure pump.

[0006] The application can provide real-time and accurate feedback data through the electronic gauges, the data lines and the concentrator, avoid safety hazards of frequent on-site data collection from the source, ensure the safety of equipment and personnel, and provide safety protection for the successful completion of the water pressure test. The monitoring host can dynamically capture the on-site situation, present the deformation condition chart, control the pressure with one key, and present the pressure size in real time, which greatly reduces the personnel inspection frequency, effectively reduces the safety risk of the inspection personnel, saves a large number of personnel, reduces the recording and analysis time, ensures the safety of the personnel and the safety of the equipment and property, and solves the problem of untimely and dangerous monitoring of the volute water pressure test.

[0007] Optionally, the number of the electronic gauges is greater than or equal to 14; four of the electronic gauges are arranged on the top of the volute and located on the radial line and the axial line with the center of the volute inner circle as the axis; four of the electronic gauges are arranged on the outside of the volute and located on the radial line and the axial line with the center of the volute inner circle as the axis; two of the electronic gauges are arranged at the inlet end of the volute; and four of the electronic gauges are arranged on the inside of the volute.

[0008] By distributing the electronic gauges at different positions of the volute, the monitoring area can be fully covered, the monitoring accuracy can be improved, real-time feedback and control can be achieved, the safety of the system can be enhanced, and the maintenance and management are facilitated.

[0009] Optionally, the bottom of the monitor is fixedly connected with a rotating telescopic mounting seat, and a plurality of rotating telescopic mounting seats are fixedly connected around the volute.

[0010] The rotating telescopic mounting seat can adjust the height and angle of the monitor according to the actual position of the volute, achieve 360° dead angle-free monitoring, and ensure timely and effective observation of the on-site situation.

[0011] Optionally, the number of the monitors is greater than or equal to 8; four of the monitors are arranged on the outside of the volute close to the electronic gauges; two of the monitors are arranged at the inlet end of the volute close to the electronic gauges; and two of the monitors are arranged on the inside of the volute close to the electronic gauges.

[0012] By arranging the monitors at the positions close to the electronic gauges on the outside, the inlet end and the inside of the volute respectively, the monitoring area can be fully covered, the monitoring accuracy can be improved, real-time feedback and control can be achieved, the safety of the system can be enhanced, and the maintenance and management are facilitated.

[0013] Optionally, the data line is a data transmission line and a data transmission VGA line; and the concentrator is a 4-way concentrator and an 8-way concentrator.

[0014] The data transmission line can be used to ensure the stability and reliability of data during transmission, meet the data transmission requirements between different devices, and improve the compatibility and flexibility of the system. The data transmission VGA line can be used to transmit analog video signals to support the transmission of high-resolution images and ensure the image quality displayed by the monitoring host. The 4-way hub can expand one network connection into four independent connections, distribute a single signal to multiple ports, realize multi-device sharing of the same network resource, and improve network utilization. The 8-way hub can provide eight independent network ports, allowing more devices to connect to the same network. It can effectively manage the network connections of multiple devices and improve the overall performance of the network.

[0015] Optionally, the digitalized spiral case hydrostatic test monitoring device further comprises a pressure pulsation sensor; the pressure pulsation sensor is arranged at the inlet end of the spiral case and the outlet end of the spiral case, and is electrically connected to the monitoring host through a connecting line.

[0016] By arranging the pressure pulsation sensor at the inlet end and outlet end of the spiral case and electrically connecting the connecting line to the monitoring host, the pressure change of the system can be comprehensively monitored, the stability and safety of the system can be improved, and data can be recorded and analyzed for easy maintenance and management.

[0017] Optionally, the soft start device comprises an input power interface, a soft starter module, a control unit, a signal feedback module, an output interface, an emergency stop button, and a cooling module; one end of the input power interface is connected with a power grid power input end, the soft starter module is electrically connected with the other end of the input power interface, the motor of the high-pressure punching pump, and the control unit respectively, and the control unit is electrically connected with the signal feedback module, the emergency stop button, the cooling module, and the output interface respectively.

[0018] The soft start device gradually increases the voltage to smoothly start the motor, thereby reducing the impact on the power grid, avoiding fluctuations in the power grid voltage, and avoiding the generation of excessive impact current by the motor during startup, thereby reducing the mechanical stress and thermal stress of the motor and prolonging the service life of the motor. In addition, the soft start device makes the startup process of the motor smoother without impact torque, reducing the impact and vibration of the mechanical system. Through smooth startup and protection function, the soft start device also reduces the downtime during production, improving production efficiency.

[0019] Optionally, the monitoring host is internally provided with a digital monitoring integrated software; the digital monitoring integrated software comprises a pressure pulsation real-time monitoring program and a data analysis processing software.

[0020] The monitoring host is internally equipped with digital monitoring integrated software, and contains a pressure pulsation real-time monitoring program and data analysis processing software, which can not only realize real-time monitoring and feedback, but also can perform in-depth data analysis and processing, improve the intelligent management level of the system, enhance the reliability of the system, and facilitate maintenance and management.

[0021] From the above technical solution, the application provides a digital spiral case hydrostatic test monitoring device, comprising: a monitoring host, a pressure transmitter, a high-pressure pumping pump, a soft start device, a dial assembly, and a monitoring assembly; the monitoring host is electrically connected with the pressure transmitter, the soft start device, the dial assembly, and the monitoring assembly; the monitoring assembly comprises a plurality of monitors; the plurality of monitors are uniformly arranged around the spiral case, and the monitors are electrically connected with the monitoring host; the dial assembly comprises a plurality of electronic dials, data lines, and a concentrator; the plurality of electronic dials are uniformly arranged around the spiral case, and the electronic dials are connected to the monitoring host through the data lines and the concentrator; the soft start device is electrically connected with the high-pressure pumping pump, so as to solve the problem of untimely and dangerous spiral case hydrostatic test monitoring. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present application, the drawings required in the embodiments will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Fig. 1 The structural schematic diagram of the digital spiral case hydrostatic test monitoring device described in the embodiments of the present application;

[0024] Fig. 2 The installation schematic diagram of the digital spiral case hydrostatic test monitoring device described in the embodiments of the present application.

[0025] ILLUSTRATIVE DESCRIPTION

[0026] Among them, 1-monitoring host; 2-dial assembly; 3-monitoring assembly. DETAILED DESCRIPTION

[0027] The embodiments will be described in detail below, and examples are shown in the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementation described in the following embodiments does not represent all the implementations consistent with the present application. It is only an example of systems and methods consistent with some aspects of the present application.

[0028] To solve the problem of untimely and dangerous spiral case hydrostatic test monitoring, see Figs. 1-2The embodiment of the application provides a kind of digital volute hydrostatic test monitoring device, comprising: monitoring host 1, pressure transmitter, high-pressure pump, soft start device, dial assembly 2 and monitoring component 3;The monitoring host 1 is electrically connected with the pressure transmitter, the soft start device, the dial assembly 2 and the monitoring component 3 respectively;The monitoring component 3 includes multiple monitors;Multiple monitors are uniformly arranged around the volute, and the monitor is electrically connected with the monitoring host 1;The dial assembly 2 includes multiple electronic dials, data lines and concentrators;Multiple electronic dials are uniformly arranged around the volute, and the electronic dial is connected to the monitoring host 1 by the data line and the concentrator;The soft start device is electrically connected with the high-pressure pump.

[0029] It should be understood that the monitoring host 1 can be a computer, and the pressure transmitter can be directly connected to the computer through a data line and a USB data line adapter to complete data acquisition and analysis through the monitoring host 1. The pressure transmitter can timely and accurately feed back the volute pressure value to the monitoring host 1. The data line is used for signal transmission and power supply, and has the characteristics of high stability, strong anti-interference and long working period.

[0030] The application can real-time accurately feedback data by multiple electronic dials, data lines and concentrators, avoid safety hazards of frequent on-site data collection from the source, ensure equipment safety and personnel safety, and provide safety guarantee for successful completion of hydrostatic test. The monitoring host 1 can dynamically capture the on-site situation, present the deformation condition chart, control the pressure with one key, and present the pressure size in real time, which greatly reduces the personnel inspection frequency, effectively reduces the safety risk of inspection personnel, saves a large number of personnel, reduces the recording and analysis time, ensures personal safety and equipment property safety, and solves the problem of volute hydrostatic test monitoring not timely and dangerous.

[0031] In some embodiments, the monitoring host 1 is provided with a digital monitoring integrated software; the digital monitoring integrated software includes a pressure pulsation real-time monitoring program and a data analysis processing software.

[0032] It should be understood that the model of the data analysis processing software can be GEZTEST V6.7.8, and the electronic dial and the monitor are sequentially summarized to the monitoring host 1, and then data display and simulation analysis are completed through the data analysis processing software. The data analysis processing software has data recording, data analysis, over-limit warning and over-danger alarm functions, and preset warning value can ensure process safety.

[0033] The monitoring host 1 is internally equipped with digital monitoring integrated software, and contains a pressure pulsation real-time monitoring program and data analysis processing software, can achieve dynamic capture of on-site conditions, deformation condition chart presentation, one-key pressure control, real-time presentation of pressure size, greatly reduces the personnel inspection frequency, can effectively reduce the safety risk of inspection personnel, saves a large number of personnel, reduces the record analysis time, and guarantees the safety of the person and the safety of the equipment and property. Not only can real-time monitoring and feedback be realized, but also in-depth data analysis and processing can be realized, the intelligent management level of the system is improved, the reliability of the system is enhanced, and maintenance and management are facilitated.

[0034] In some embodiments, the data line is a data transmission line and a data transmission VGA line; the concentrator is a 4-way concentrator and an 8-way concentrator.

[0035] Specifically, the data transmission line can be 1010-217, the model of the 4-way concentrator can be 5010-311, and the model of the 8-way concentrator can be 5010-411. The electronic dial indicator can transmit data signals to the 8-way concentrator through the data transmission line and the data transmission VGA line, so as to convert the collected displacement signals into electrical signals; two 8-way concentrators are collected in the 4-way concentrator through the data transmission VGA line, and finally connected to the computer through the data transmission VGA line, to complete data acquisition and analysis.

[0036] The data transmission line can be used to ensure the stability and reliability of data during transmission, meet the data transmission needs between different devices, and improve the compatibility and flexibility of the system. The data transmission VGA line can be used to transmit analog video signals to support high-resolution image transmission and ensure the image quality displayed by the monitoring host 1. The 4-way concentrator can expand one network connection into four independent connections, realize multi-device sharing of the same network resource by distributing a single signal to multiple ports, and improve network utilization. The 8-way concentrator can provide eight independent network ports, allowing more devices to be connected to the same network. It can effectively manage the network connections of multiple devices and improve the overall performance of the network.

[0037] In some embodiments, the number of electronic dial indicators is greater than or equal to 14; wherein 4 electronic dial indicators are arranged on the top of the volute and located on the radial line and the axial line with the center of the volute as the axis; 4 electronic dial indicators are arranged on the outside of the volute and located on the radial line and the axial line with the center of the volute as the axis; 2 electronic dial indicators are arranged at the inlet end of the volute; and 4 electronic dial indicators are arranged on the inside of the volute.

[0038] It should be understood that by connecting the data line of the power supply to the 8-way hub, and then to the monitoring host 1, the point-to-point debugging of the electronic percentage table is performed to verify the installation orientation and action sensitivity of the electronic percentage table.

[0039] By distributing the electronic percentage table at different positions of the volute, not only can the monitoring area be fully covered to improve the monitoring accuracy, but also real-time feedback and control can be achieved to enhance the safety of the system and facilitate maintenance and management.

[0040] In some embodiments, the rotatable telescopic mounting seat is fixedly connected to the bottom of the monitor, and a plurality of rotatable telescopic mounting seats are fixedly connected around the volute.

[0041] The rotatable telescopic mounting seat can adjust the height and angle of the monitor according to the actual position of the volute, achieving 360° dead-angle-free monitoring and ensuring timely and effective observation of the site conditions.

[0042] In some embodiments, the number of monitors is greater than or equal to 8; four of the monitors are arranged near the electronic percentage table on the outside of the volute, two of the monitors are arranged near the electronic percentage table at the inlet end of the volute, and two of the monitors are arranged near the electronic percentage table on the inside of the volute.

[0043] By arranging the monitors near the electronic percentage table on the outside, inlet end, and inside of the volute, not only can the monitoring area be fully covered to improve the monitoring accuracy, but also real-time feedback and control can be achieved to enhance the safety of the system and facilitate maintenance and management.

[0044] In some embodiments, the digital volute hydrostatic test monitoring device further comprises a pressure pulsation sensor; the pressure pulsation sensor is arranged at the inlet end of the volute and the outlet end of the volute, and the pressure pulsation sensor is electrically connected to the monitoring host 1 through a connecting line.

[0045] It should be understood that the pressure pulsation sensor utilizes the piezoelectric effect of a piezoelectric crystal to convert the pressure change on the diaphragm into an electric charge signal, and then converts it into an electric signal output through a charge amplifier. It has the characteristics of small size, stable and reliable performance, and fast dynamic response, and is suitable for dynamic pressure detection. The pressure pulsation sensor is connected to the computer through a connecting line and a USB connecting line. By arranging the pressure pulsation sensor at the inlet end and outlet end of the volute and electrically connecting the connecting line to the monitoring host 1, not only can the pressure change of the system be fully monitored to improve the stability and safety of the system, but also data can be recorded and analyzed to facilitate maintenance and management.

[0046] In some embodiments, the soft start device comprises an input power interface, a soft starter module, a control unit, a signal feedback module, an output interface, an emergency stop button and a cooling module; one end of the input power interface is connected with a power grid power input end, the soft starter module is electrically connected with the other end of the input power interface, a motor of the high-pressure pump and the control unit respectively, the control unit is electrically connected with the signal feedback module, the emergency stop button, the cooling module and the output interface respectively.

[0047] It should be understood that the power grid power supply is a three-phase power supply, which is connected and controlled with the high-pressure pump through the soft start device, and truly realizes the on-site one-key start-stop control function. Due to the high test pressure of the volute water test, the large test volume, the strict requirement on the pressure rising and falling rate, and the process flow of stepwise pressure rising and falling, the performance requirement on the pump set is high, the requirement on the circuit equipment is strong, and the impact on the power grid is large, and the equipment needs to be frequently started and stopped to ensure the test requirement, so the air switch start-stop mode cannot guarantee the test safety and reliability, and the soft start control is particularly important.

[0048] The soft start device gradually increases the voltage to smoothly start the motor, thereby reducing the impact on the power grid, avoiding the fluctuation of the power grid voltage, and avoiding the generation of excessive impact current of the motor during starting by controlling the starting current, thereby reducing the mechanical stress and thermal stress of the motor and prolonging the service life of the motor. In addition, the soft start device makes the starting process of the motor more smooth without impact torque, reducing the impact and vibration of the mechanical system. Through the smooth starting and protection function, the soft start device also reduces the downtime in the production process and improves the production efficiency.

[0049] In some embodiments, the digital volute water pressure test monitoring device can be combined with a water filling pump control system to supply test water at any time. In addition, the digital volute water pressure test monitoring device can also complete the pressure test monitoring work of the same type of pressure-bearing device, including but not limited to steel branch pipe, pressure gas tank, pressure oil tank, boiler equipment and other pressure-bearing container test monitoring work.

[0050] According to the technical scheme, the application provides a digital spiral case hydrostatic test monitoring device, which comprises a monitoring host 1, a pressure transmitter, a high-pressure pumping pump, a soft start device, a dial gauge assembly 2 and a monitoring assembly 3; the monitoring host 1 is electrically connected with the pressure transmitter, the soft start device, the dial gauge assembly 2 and the monitoring assembly 3; the monitoring assembly 3 comprises a plurality of monitors; the plurality of monitors are uniformly arranged around the spiral case and are electrically connected with the monitoring host 1; the dial gauge assembly 2 comprises a plurality of electronic dial gauges, data lines and a concentrator; the plurality of electronic dial gauges are uniformly arranged around the spiral case and are connected to the monitoring host 1 through the data lines and the concentrator; and the soft start device is electrically connected with the high-pressure pumping pump, so as to solve the problems of untimely monitoring and high risk in the spiral case hydrostatic test.

[0051] The similar parts among the embodiments provided in the application can be referred to each other, the specific embodiments provided above are only a few examples under the general concept of the application and do not limit the protection scope of the application. Any other embodiments extended according to the application solutions without creative labor are within the protection scope of the application.

Claims

1. A digitalized spiral case hydrotest monitoring device, characterized by, The utility model relates to a kind of monitoring system of high-pressure pump, comprising: Monitoring host, pressure transmitter, high-pressure beating pump, soft starting device, dial assembly and monitoring component are included; The monitoring host is electrically connected with the pressure transmitter, the soft starting device, the dial assembly and the monitoring component respectively;The monitoring component includes multiple monitors;Multiple monitors are evenly arranged around the volute, and the monitors are electrically connected with the monitoring host;The dial assembly includes multiple electronic dials, data lines and concentrators;Multiple electronic dials are evenly arranged around the volute, and the electronic dials are connected to the monitoring host through the data lines and the concentrators;The soft starting device is electrically connected with the high-pressure beating pump.

2. The digitalized spiral case hydrotest monitoring device of claim 1, wherein, The number of electronic dials is greater than or equal to 14;4 electronic dials are arranged on the top of the volute and located on the radial line and the axial line with the center of the volute as the axis;4 electronic dials are arranged on the outside of the volute and located on the radial line and the axial line with the center of the volute as the axis;2 electronic dials are arranged at the inlet end of the volute;4 electronic dials are arranged on the inside of the volute.

3. The digitalized spiral case hydrotest monitoring device of claim 1, wherein, The bottom of the monitor is fixedly connected with a rotating telescopic mounting seat, and multiple rotating telescopic mounting seats are fixedly connected around the volute.

4. The digitalized spiral case hydrotest monitoring device of claim 1, wherein, The number of monitors is greater than or equal to 8;4 monitors are arranged on the outside of the volute near the electronic dials;2 monitors are arranged at the inlet end of the volute near the electronic dials;2 monitors are arranged on the inside of the volute near the electronic dials.

5. The digitalized spiral case hydrotest monitoring device of claim 1, wherein, The data line is a data transmission line and a data transmission VGA line;The concentrator is a 4-way concentrator and an 8-way concentrator.

6. The digitalized spiral case hydrotest monitoring device of claim 1, wherein, It also includes a pressure pulsation sensor;The pressure pulsation sensor is arranged at the inlet end of the volute and the outlet end of the volute, and is electrically connected to the monitoring host through a connecting line.

7. The digitalized spiral case hydrotest monitoring device of claim 1, wherein, The soft starting device includes an input power interface, a soft starter module, a control unit, a signal feedback module, an output interface, an emergency stop button and a cooling module; One end of the input power interface is connected with the power grid power input end, the soft starter module is electrically connected with the other end of the input power interface, the motor of the high-pressure beating pump and the control unit respectively, the control unit is electrically connected with the signal feedback module, the emergency stop button, the cooling module and the output interface respectively.

8. The digitalized spiral case hydrotest monitoring device of claim 1, wherein, The monitoring host is internally provided with digital monitoring integrated software; The digital monitoring integrated software includes a pressure pulsation real-time monitoring program and data analysis processing software.

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