A portable unit stability data acquisition device

Abstract

This utility model discloses a portable unit stability data acquisition device, including a housing and a cover that fits with the housing. A strain data acquisition module is installed on one side of the housing. A signal conversion module is located on one side of the housing panel, and a DC signal isolation module and a communication acquisition chassis are located on the other side. A heat dissipation hole is located on one side of the front of the housing, and a power socket is located on the other side. This utility model device features high portability, strong anti-interference capability, simple operation, and high reliability. It has comprehensive functions and strong practicality. The addition of a handle and a reasonable housing structure design makes the device easy to carry and move, adapting to the needs of different work locations and greatly improving the flexibility and efficiency of data acquisition.

Description

Technical Field

[0001] This utility model relates to the field of hydro-generator equipment maintenance technology, and in particular to a portable unit stability data acquisition device. Background Technology

[0002] As the core equipment of hydropower generation, the operational stability of hydro-turbine generator units directly affects the safety of power plant units and the reliability of power grid operation. To accurately and promptly acquire operational data of the units under different operating conditions, especially data related to unit stability, equipment manufacturers and power plants conduct stability tests. These tests are crucial for equipment maintenance, fault diagnosis, and optimization of operating conditions. However, existing data acquisition devices and methods have many shortcomings. On the one hand, traditional data acquisition requires temporary assembly and wiring of various devices and components, and there is no dedicated testing equipment. Traditional testing equipment has complex and messy wiring and a complex structure, making it inconvenient to move and use in various complex field environments. Especially when testing units in different locations in turn, the transportation process is complex, the installation process is cumbersome, requiring reassembly and rewiring, consuming a lot of time and manpower. On the other hand, some data acquisition devices have weak anti-interference capabilities during signal acquisition and processing, which can easily lead to data distortion or inaccuracy, affecting the judgment of unit stability. In addition, some existing devices are not perfect in terms of data display and transmission functions, failing to meet users' needs for real-time viewing and remote data transmission.

[0003] To address the above issues, there is an urgent need for a portable, interference-resistant, and fully functional unit stability data acquisition device. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a portable unit stability data acquisition device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a portable unit stability data acquisition device, including a housing and a cover that cooperates with the housing. A strain data acquisition module is installed on one side of the housing. A signal conversion module is provided on one side of the panel of the housing, and a DC signal isolation module and a communication acquisition chassis are provided on the other side. A heat dissipation hole is provided on one side of the front of the housing, and a power socket is provided on the other side.

[0006] Preferably, the lower side of the lid is hinged to one side of the top of the box body via a hinge, and the upper side of the lid is engaged with the other side of the top of the box body via a latch.

[0007] Preferably, the strain data acquisition module includes two strain data acquisition modules connected by a communication cable. The strain data acquisition module has a terminal block on its outer side and a communication interface on its inner side. The two strain data acquisition modules are connected to the communication interface by a communication cable for data transmission and are assembled into a strain data acquisition module. The communication cable is installed inside the housing.

[0008] Preferably, the signal conversion module is provided with isolation terminals on both sides to isolate voltage and current signals.

[0009] Preferably, an indicator light is provided on one side of the signal conversion module to monitor the status and power indicators of the module; a communication interface is provided on the other side of the signal conversion module to transmit data with the communication acquisition chassis via a communication cable.

[0010] Preferably, the communication acquisition chassis is used for data communication with the signal conversion module and for data communication with a dedicated debugging platform via USB. The dedicated debugging platform is equipped with dedicated analysis and processing software to analyze and process the acquired signals and display the results on a display screen, which is nested inside the chassis cover.

[0011] Preferably, a rocker switch is also provided on one side of the front of the enclosure, and the output side of the rocker switch is connected to the switching power supply module by a cable.

[0012] Preferably, the switching power supply module is installed inside the enclosure and is used to convert 220V AC mains power to 24V DC power. The input side of the switching power supply module is connected to the rocker switch by a cable, and the output side of the switching power supply module is connected to the signal conversion module, strain data acquisition module, DC signal isolation module, display screen, and communication acquisition chassis by a cable.

[0013] Preferably, handles are also installed on both sides of the box.

[0014] Preferably, the DC signal isolation module is composed of multiple DC signal isolators connected in series.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model device features high portability, strong anti-interference capability, simple operation, and high reliability. It boasts comprehensive functions and strong practicality. The inclusion of a handle and a rationally designed housing structure makes the device easy to carry and move, adapting to the needs of different work locations and greatly improving the flexibility and efficiency of data acquisition.

[0017] 2. This utility model adopts multiple anti-interference measures such as isolation terminals and DC signal isolation modules to effectively isolate external interference signals, ensure the accuracy and reliability of the collected data, and provide a solid data foundation for the analysis of unit stability.

[0018] 3. This utility model integrates multiple functions such as data acquisition, signal conversion, display, and communication. Users can view data in real time through the display screen and transmit the data to other devices for further processing through the communication interface, thus meeting the diverse needs of different users.

[0019] 4. The design of the rocker switch and indicator light of this utility model makes the operation of the device very simple and convenient, allowing users to get started quickly, reducing the threshold for use and improving work efficiency.

[0020] 5. The excellent protective performance of the enclosure and cover, the heat dissipation design of the heat dissipation holes, and the stable power supply module of this utility model ensure that the device can work stably and reliably in various complex environments, reducing the possibility of data loss or data acquisition interruption due to equipment failure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a portable unit stability data acquisition device;

[0022] Figure 2 This is a schematic diagram showing the connections of various modules in a portable unit stability data acquisition device. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-2 As shown, a portable unit stability data acquisition device includes a housing 1 and a cover 2 that cooperates with the housing 1. A strain data acquisition module 3 is installed on one side of the housing 1. A signal conversion module 4 is provided on one side of the panel of the housing 1, and a DC signal isolation module 14 and a communication acquisition chassis 15 are provided on the other side. A heat dissipation hole 13 is provided on one side of the front of the housing 1, and a power socket 9 is provided on the other side.

[0025] Preferably, the lower side of the lid 2 is hinged to one side of the top of the box body 1 via a hinge, and the upper side of the lid 2 engages with the other side of the top of the box body 1 via a latch 12. In this embodiment, the box body 1 is rectangular in shape, used to accommodate and protect other components, possessing good mechanical strength and protective performance, and capable of adapting to various complex working environments. The latch 12 enables opening and closing, facilitating the operation and maintenance of the components inside the box, and ensuring a secure and tight connection between the box body and the lid, preventing the device from opening due to shaking during transportation or use.

[0026] Preferably, the strain data acquisition module 3 includes two strain data acquisition modules connected by a communication cable. The strain data acquisition module 3 has terminals on its outer side and a communication interface on its inner side. The two strain data acquisition modules are connected to the communication interface via the communication cable for data transmission and are assembled into a single strain data acquisition module. The communication cable is installed inside the housing. The terminals of this module are exposed on one side of the housing for easy wiring and disconnection.

[0027] Preferably, the signal conversion module 4 has isolation terminals 6 on both sides to isolate voltage and current signals; an indicator light is provided on one side of the signal conversion module 4 to monitor the status and power indicators of the module; and a communication interface 5 is provided on the other side of the signal conversion module 4 for data transmission with the communication acquisition chassis 15 via a communication cable. The isolation terminals 6 are used to isolate voltage and current signals, facilitating the wiring of input acquisition signals. The indicator light is used to monitor the status and power indicators of the module.

[0028] Preferably, the communication acquisition chassis 15 is used for data communication with the signal conversion module 4, and also for data communication with the dedicated debugging platform via USB. The dedicated debugging platform is equipped with dedicated analysis and processing software to analyze and process the acquired signals, and the results can be displayed on the display screen 8, which is nested inside the cover 2.

[0029] Preferably, a rocker switch 10 is also provided on one side of the front of the housing 1. The output side of the rocker switch 10 is connected to the switching power supply module 16 by a cable. The rocker switch 10 is used to control the connection of the mains power supply to the power socket. Its output side is connected to the switching power supply module 16 by a cable, which facilitates the user's control of the power on and off of the device, and the operation is simple and convenient.

[0030] Preferably, the switching power supply module 16 is installed inside the housing 1 and is used to convert the 220V AC mains power to DC 24V power. The input side of the switching power supply module 16 is connected to the rocker switch 10 by a cable, and the output side of the switching power supply module 16 is connected to the signal conversion module 4, the strain data acquisition module 3, the DC signal isolation module 14, the display screen 8, and the communication acquisition chassis 15 by a cable.

[0031] Preferably, handles 11 are also installed on both sides of the housing 1. The handles 11 make it easy for users to carry and move the device, giving the device good portability and making it suitable for handling and installation in different work locations.

[0032] Preferably, the DC signal isolation module 14 is composed of multiple DC signal isolators connected in series. In this embodiment, the DC signal isolation module 14 is mainly used to acquire input signals of current type 4~20mA to avoid affecting the signal acquisition of the signal conversion module 4. Its input signal wiring is connected in series, and the output signal is connected to the input isolation terminal 6 of the signal conversion module via a cable.

[0033] Preferably, the heat dissipation hole 13 is installed on one side of the front of the enclosure and adopts a folded plate structure to release the temperature and heat generated during the operation of the electrical equipment inside the enclosure.

[0034] Preferably, the power socket 9 is installed on one side of the front of the enclosure to provide a power access interface for the device to connect to the mains power supply and power the electrical equipment of the device, and is connected to the rocker switch 10 by cable wiring.

[0035] The working principle of this embodiment is as follows:

[0036] The switching power supply module is from the Mean Well brand, providing a stable DC 24V power supply for the electrical equipment in this device, ensuring the normal operation of all components. This switching power supply is characterized by high efficiency, stability, and strong anti-interference capabilities, and can adapt to the complex testing and operating conditions of a hydropower plant.

[0037] The DC signal isolation module consists of multiple DC signal isolators connected in series, offering excellent expandability and maintainability. The number of channels for the DC signal isolators can be flexibly configured according to actual needs. The DC signal isolator model is MJHK-21, with a power supply of DC24V, an input signal of DC 4-20mA, an output signal of DC 0-10V, and a measurement accuracy of ±0.1%.

[0038] The DC signal isolation module is mainly used to measure current-type signals of 4-20mA, such as guide vane opening, active power of the unit, inlet pressure of the volute, and tailrace pipe pressure.

[0039] The signal conversion module, as the core component of this device, is responsible for the conditioning, conversion and transmission of acquired signals. Its circuit board integrates electronic components such as resistors and capacitors, which can uniformly convert input signals of voltage type 0-24V or 0-5V and current type 4-20mA into output signals of voltage type ±10V. This module mainly acquires signals such as key phase, swing, and vibration in the horizontal and vertical directions.

[0040] The signal conversion module features excellent expandability and maintainability, allowing for flexible configuration of input channel signal types to meet specific needs. Employing high-precision, high-reliability isolation technology, the module effectively ensures the accuracy and stability of data transmission.

[0041] The strain data acquisition module is specifically designed to measure the strain of key components in a hydro-generator unit, such as the upper frame, lower frame, guide vane connecting rod, and thrust bearing, observing stress changes in both the horizontal and vertical directions. This module monitors strain signal changes in real time and uses data analysis software on a dedicated commissioning platform to calculate the stress state of critical components, providing crucial information for assessing the unit's mechanical stability.

[0042] The communication acquisition chassis is used to install and secure data acquisition and communication modules and other related accessories, providing excellent electromagnetic compatibility and heat dissipation. Its internal modular design offers good expandability and maintainability, allowing for flexible configuration of data acquisition and communication module slots according to actual needs.

[0043] The dedicated debugging platform serves as the host computer for this device, used to set acquisition parameters, receive and store acquired data, run data analysis and processing software, and perform system debugging and maintenance. It is also equipped with professional data acquisition and analysis software, enabling real-time processing, analysis, and storage of acquired data, and transmitting the processing results to a display screen for real-time display, facilitating operators' monitoring and management of the unit's stability.

[0044] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A portable unit stability data acquisition device comprising a box body (1) and a box cover (2) matched with the box body (1), characterized in that: The box (1) has a strain data acquisition module (3) installed on one side. The box (1) has a signal conversion module (4) on one side of the panel and a DC signal isolation module (14) and a communication acquisition chassis (15) on the other side. The box (1) has a heat dissipation hole (13) on one side of the front and a power socket (9) on the other side.

2. The portable unit stability data acquisition device of claim 1, wherein: The lower side of the lid (2) is hinged to one side of the top of the box body (1) via a hinge, and the upper side of the lid (2) is engaged with the other side of the top of the box body (1) via a latch (12).

3. The portable unit stability data acquisition device of claim 1, wherein: The strain data acquisition module (3) includes two strain data acquisition modules, which are connected by a communication line. The strain data acquisition module (3) has a terminal block on the outside and a communication interface on the inside. The two strain data acquisition modules are connected by a communication line and the communication interface to transmit data and form a strain data acquisition module. The communication line is installed inside the housing.

4. The portable unit stability data acquisition apparatus of claim 1, wherein: The signal conversion module (4) has isolation terminals (6) on both sides to isolate voltage and current signals.

5. The portable unit stability data acquisition apparatus of claim 1, wherein: The signal conversion module (4) is equipped with an indicator light on one side to monitor the status and power of the module; the signal conversion module (4) is equipped with a communication interface (5) on the other side, which uses a communication cable to transmit data with the communication acquisition chassis (15).

6. The portable unit stability data acquisition apparatus of claim 1, wherein: The communication acquisition chassis (15) is used to communicate with the signal conversion module (4) and communicate with the dedicated debugging platform via USB. The dedicated debugging platform is equipped with dedicated analysis and processing software to analyze and process the acquired signals and display the results on the display screen (8). The display screen (8) is nested inside the cover (2).

7. The portable unit stability data acquisition apparatus of claim 6, wherein: A rocker switch (10) is also provided on one side of the front of the enclosure (1). The output side of the rocker switch (10) is connected to the switching power supply module (16) by a cable.

8. The portable unit stability data acquisition apparatus of claim 7, wherein: The switching power supply module (16) is installed inside the housing (1) and is used to convert the mains power of 220V to DC24V power. The input side of the switching power supply module (16) is connected to the rocker switch (10) by a cable, and the output side of the switching power supply module (16) is connected to the signal conversion module (4), the strain data acquisition module (3), the DC signal isolation module (14), the display screen (8), and the communication acquisition chassis (15) by a cable.

9. The portable unit stability data acquisition apparatus of claim 1, wherein: Handles (11) are also installed on both sides of the box (1).

10. A portable unit stability data acquisition device according to claim 1, characterized in that: The DC signal isolation module (14) is composed of multiple DC signal isolators connected in series.

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