A portable data acquisition device for safety valve verification

Abstract

The application relates to a portable data acquisition device for safety valve calibration, which comprises a shell with a first accommodating space and a first opening, an operation panel is arranged at the first opening, the operation panel is provided with a second opening, an industrial computer is installed at the second opening, a power supply assembly and an acquisition part are arranged in the shell, the power supply assembly is electrically connected with the industrial computer, the acquisition part is electrically connected with the industrial computer and the power supply assembly, a pressure sensor interface is arranged on the operation panel, and the pressure sensor is electrically connected with the acquisition part. Through the above structural combination, the portable data acquisition device realizes integrated packaging of the industrial computer, the acquisition part, power supply and the interface, solves the problems of large reading error, low recording efficiency and difficult data tracing in the existing calibration, and improves the calibration automation degree, the acquisition precision and the system reliability.

Description

Technical Field

[0001] This utility model relates to a safety valve calibration device, and more particularly to a portable data acquisition device for safety valve calibration. Background Technology

[0002] In industrial production, pressure-bearing equipment such as boilers, pressure vessels, and pressure pipelines are widely used in chemical, power, petroleum, and natural gas industries. To ensure the safe operation of the system under overpressure conditions, pressure protection devices such as safety valves must be installed. As a safety accessory for special equipment, the function of a safety valve is to automatically open when the internal pressure of the equipment exceeds a preset set value, releasing the medium to prevent accidents such as explosions and leaks, thereby ensuring the safety of equipment and personnel. According to the "Safety Valve Safety Technical Supervision Regulations," safety valves need to be calibrated regularly to ensure their sensitive operation and accurate set pressure; typically, calibration must be completed at least once a year.

[0003] Current safety valve calibration methods mostly employ offline calibration, which involves disassembling the safety valve after the equipment is shut down or depressurized and transferring it to an offline calibration platform for testing. An offline calibration platform typically includes a pressure pressurization device, a mechanical pressure gauge, and a control console for manual operation and observation. During calibration, the operator pressurizes the safety valve and observes the instantaneous changes in the mechanical pressure gauge pointer to determine the valve's opening pressure, thereby confirming whether its set value meets the standard.

[0004] However, mechanical reading methods are not sensitive enough to instantaneous pressure changes, making it difficult for operators to accurately capture the pressure value at the moment the valve opens, which can easily lead to verification errors. Furthermore, the verification process requires manual recording of key data such as set pressure and environmental parameters, resulting in low efficiency and a high risk of omissions or errors. In addition, the entire verification process is highly dependent on manual execution, which is not only labor-intensive but also susceptible to data distortion due to subjective operational errors or deliberate circumvention, making it difficult to ensure the authenticity and traceability of verification results. Therefore, there is an urgent need to propose a portable data acquisition device to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a portable data acquisition device that is compact in structure, integrated in function, has an independent pressure sensor interface, and is easy to carry, so as to improve the accuracy, traceability and operational efficiency of safety valve calibration.

[0006] The technical solution adopted by this utility model to solve the above problems is: a portable data acquisition device for safety valve calibration, comprising:

[0007] The housing includes a shell, the shell including a first accommodating space and a first opening formed on one side of the shell, the first opening communicating with the first accommodating space;

[0008] An operation panel is connected to the housing and is located at the first opening; the operation panel also includes a second opening.

[0009] An industrial computer is connected to the operation panel and is located at the second opening;

[0010] A power supply component is disposed within the first accommodating space, and the power supply component is electrically connected to the industrial control computer;

[0011] A data acquisition device is disposed within the first accommodating space, and the data acquisition device is electrically connected to the industrial control computer and the power supply component;

[0012] A pressure sensor interface is located on the operation panel, and the pressure sensor is electrically connected to the data acquisition unit.

[0013] Preferably, the portable data acquisition device further includes a data transmission interface, which is disposed on the operation panel and electrically connected to the industrial control computer.

[0014] Preferably, the data transmission interface is a USB interface.

[0015] Preferably, the operation panel has a third opening.

[0016] The portable data acquisition device also includes a power interface, which is connected to the operation panel and located at the third opening. The power interface is electrically connected to the power supply component.

[0017] Preferably, the operation panel has a fourth opening.

[0018] The power supply component includes:

[0019] A power switch is connected to the operation panel and is located at the fourth opening;

[0020] A switching power supply is electrically connected to the data acquisition device, the industrial control computer, and the power switch.

[0021] The power switch is also electrically connected to the power interface.

[0022] Preferably, the operation panel has a fifth opening.

[0023] The power supply component also includes a switch indicator light, which is connected to the operation panel and located at the fifth opening. The switch indicator light is electrically connected to the power switch.

[0024] Preferably, the operation panel is provided with a first heat dissipation hole and a second heat dissipation hole;

[0025] The portable data acquisition device further includes a heat dissipation component disposed within the first accommodating space. The heat dissipation component includes:

[0026] The first cooling fan is disposed on the side of the operation panel facing the first accommodating space and aligned with the first heat dissipation hole. The first cooling fan is configured to draw in outside air through the first heat dissipation hole when the heat dissipation component is in working state.

[0027] The second cooling fan is disposed on the side of the operation panel facing the first accommodating space and aligned with the second heat dissipation hole. The second cooling fan is configured to exhaust air in the first accommodating space through the second heat dissipation hole when the heat dissipation component is in working state.

[0028] Preferably, the operation panel is further provided with a sixth opening and a seventh opening, and the data transmission interface and the pressure sensor interface are respectively located at the sixth opening and the seventh opening.

[0029] Preferably, both the power interface and the pressure sensor interface are configured as quick interfaces.

[0030] Preferably, the housing further includes a lid, which is connected to the housing and is configured to cover the first opening of the housing when the portable data acquisition device is not in operation.

[0031] Beneficial effects of the embodiments of this utility model

[0032] 1. By adopting a structure in which the housing includes a first accommodating space and an opening, and setting an operation panel at the opening, the operation panel has a second opening for installing an industrial control computer. The industrial control computer is electrically connected to the data acquisition unit and power supply component located inside the housing. At the same time, the operation panel has a technical means for connecting a pressure sensor. Therefore, the problems of manual reading during the verification process, difficulty in accurately capturing instantaneous pressure response, and manual recording of verification results in the existing technology are effectively solved. This realizes the automation of the safety valve verification process, the high precision of data acquisition, and the traceability of result recording, thereby improving the accuracy, efficiency, and data reliability of verification.

[0033] 2. By employing a technique of opening a first heat dissipation hole and a second heat dissipation hole on the operation panel, and setting a heat dissipation component including a first heat dissipation fan and a second heat dissipation fan in the first accommodating space, and aligning the first heat dissipation fan with the first heat dissipation hole to draw in external cold air and the second heat dissipation fan with the second heat dissipation hole to expel internal hot air, the problem of heat accumulation and poor heat dissipation in the internal components of portable data acquisition devices during continuous operation in the prior art is effectively solved, which can easily lead to unstable device performance or damage. This achieves effective control of the internal temperature of the data acquisition device and improves the stability, reliability and service life of the system. Attached Figure Description

[0034] Figure 1 This is a schematic structural view of a portable data acquisition device proposed in one embodiment of the present invention.

[0035] Figure 2 This is a schematic exploded view of a portable data acquisition device proposed in one embodiment of the present invention.

[0036] Figure 3 This is a schematic structural view of the operation panel connected to the industrial control computer, power supply components, data acquisition components, and heat dissipation components in one embodiment of this utility model.

[0037] Wherein: 10, enclosure; 110, shell; 111, first accommodating space; 112, first opening; 120, cover; 20, operation panel; 210, first heat dissipation hole; 220, second heat dissipation hole; 30, industrial computer; 40, power supply assembly; 410, power switch; 420, switching power supply; 430, switch indicator light; 50, data acquisition component; 60, pressure sensor interface; 70, data transmission interface; 80, power interface; 90, heat dissipation assembly; 910, first cooling fan; 920, second cooling fan. Detailed Implementation

[0038] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0039] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] Please see Figures 1 to 3 A preferred embodiment of this application provides a portable data acquisition device for safety valve calibration. This portable data acquisition device needs to be used in conjunction with an existing safety valve testing device, which typically includes a pressure source for simulating operating pressure, a piping system for connecting the pressure source output to the safety valve, and a pressure detector installed in the safety valve cavity. To achieve automated data acquisition and recording, the pressure detector is an electrical signal output type pressure sensor, and is connected to the portable data acquisition device of this application via a wired connection, thereby enabling real-time transmission and processing of the set pressure data.

[0042] The portable data acquisition device includes a housing 10, an operation panel 20, an industrial computer 30, a power supply component 40, a data acquisition element 50, and a pressure sensor interface 60. The housing 10 includes a shell 110, which includes a first accommodating space 111 and a first opening 112 on one side of the shell 110, the first opening 112 communicating with the first accommodating space 111. The operation panel 20 is connected to the housing 10 and is located at the first opening 112, and the operation panel 20 includes a second opening. The industrial computer 30 is connected to the operation panel 20 and is located at the second opening. The power supply component 40 is located within the first accommodating space 111 and is electrically connected to the industrial computer 30. The data acquisition element 50 is located within the first accommodating space 111 and is electrically connected to the industrial computer 30 and the power supply component 40. The pressure sensor interface 60 is located on the operation panel 20, and the pressure sensor is electrically connected to the data acquisition element 50.

[0043] Specifically:

[0044] The enclosure 10 is an integral shell made of corrosion-resistant metal or high-strength plastic to adapt to the complex environment of industrial sites. The enclosure 10 has an internal accommodating space, namely the first accommodating space 111, for installing functional modules such as the power supply component 40 and the data acquisition component 50; a first opening 112 is opened on one side of the enclosure 10 as the main interface area of ​​the device.

[0045] Installed at the first opening 112 is an operation panel 20. The operation panel 20 is typically made of a metal-clad engineering plastic substrate to provide both strength and insulation. The operation panel 20 includes a second opening on its body for mounting an industrial computer 30. The industrial computer 30 is an industrial-grade embedded controller, which can be installed using an embedded snap-fit ​​structure or a panel thread fixing structure to ensure a stable connection with the operation panel 20. The front of the industrial computer 30 has a human-machine interface, such as a touch screen or multi-function buttons, to facilitate parameter configuration, data reading, and result export by the operator.

[0046] The power supply component 40 is disposed within the first accommodating space 111, preferably integrating a lithium battery pack or a voltage regulator module, and equipped with a power management circuit to provide a stable operating voltage for the entire device. The power supply component 40 is electrically connected to the industrial control computer 30 through internal connectors to ensure that the equipment can operate immediately upon power-on, and can also be charged or powered by an external power adapter.

[0047] The data acquisition unit 50 is also installed within the first accommodating space 111 and is electrically connected to the industrial control computer 30 and the power supply component 40 via wires. This data acquisition unit 50 can be a data acquisition module or an analog input card, possessing the functions of amplification, conversion, and filtering of external pressure sensor signals, and can transmit the pressure signal in digital form to the industrial control computer 30 for processing. The data acquisition unit 50 is encapsulated on a vibration-resistant bracket, with a reasonable installation layout to avoid signal cable tangling or loose interfaces.

[0048] The control panel 20 has a pressure sensor interface 60, which is typically a standard industrial signal interface (such as an aviation plug or waterproof connector). This interface is electrically connected to the data acquisition unit 50. External pressure sensors can be directly plugged in through the standard interface for plug-and-play functionality. A limit ring and dust cover are provided at the interface to enhance its durability and anti-interference capabilities.

[0049] During use, the calibration personnel connect the pressure sensor to the pressure sensor interface 60 on the operation panel 20, connect the safety valve to the pipeline of the testing device, and pressurize the safety valve through a pressure source. The moment the safety valve opens, the pressure sensor transmits the corresponding pressure signal to the data acquisition unit 50. The data acquisition unit 50 processes the signal and transmits it in real time to the industrial control computer 30, which then records, analyzes, and outputs the data. The entire process requires no manual reading or recording; the data processing results can be displayed on the screen or exported to a storage device, making it suitable for various work needs such as on-site calibration, rapid deployment, and remote comparison.

[0050] In this embodiment, by adopting a structure in which the housing 110 includes an accommodating space and an opening, and by integrating the industrial control computer 30, the data acquisition unit 50, the power supply component 40, and the pressure sensor interface 60 through the operation panel 20, the problems of relying on manual reading, data response lag, record distortion, and low verification efficiency in the existing safety valve verification process are effectively solved. This achieves the technical effects of automatic data acquisition, real-time processing, and traceable results, and greatly improves the accuracy, efficiency, and reliability of on-site verification work.

[0051] Please see Figures 1 to 2 In some embodiments, the portable data acquisition device further includes a data transmission interface 70 disposed on the operation panel 20, the data transmission interface 70 being electrically connected to the industrial control computer 30. The data transmission interface 70 is a USB interface.

[0052] Specifically:

[0053] The data transmission interface 70 is located on the surface of the operation panel 20, preferably on the side close to the display area of ​​the industrial control computer 30, so that operators can quickly connect to external devices during the verification process. The data transmission interface 70 is electrically connected to the main control module of the industrial control computer 30, and is used to realize operations such as local export, remote transfer, or software upgrade of the collected data.

[0054] In terms of specific structure, the data transmission interface 70 is a universal serial bus interface. Its housing 110 is made of industrial-grade anti-interference metal shielding material. The interface body is embedded and fixed to the operation panel 20, and is equipped with a dust cover to adapt to the complex environments of industrial sites, such as dust and high humidity. Sufficient space is reserved at the interface location for easy insertion and removal of standard data cables. Inside the panel, it is connected to the communication port on the motherboard of the industrial computer 30 via double-layer insulated wires, ensuring stable signal transmission and anti-interference performance. The data transmission interface 70 is preferably a USB interface. The USB interface not only supports data read and write functions but is also compatible with common peripherals such as USB flash drives and external hard drives. After the verification task is completed, data such as the set pressure, timestamp, and device number can be completely exported without relying on a network environment. Furthermore, the industrial computer 30 can have built-in drivers to support hot-swapping operations and is equipped with a file system module to ensure that the exported data format is standardized and traceable.

[0055] During use, after completing the safety valve calibration task, operators can connect a mobile storage device to this USB interface to export the recorded data as a file for archiving, report generation, or remote uploading. Simultaneously, this interface also supports reverse import functionality for upgrading or importing configurations from the industrial control computer 30's internal programs, thereby improving the device's maintainability and system scalability.

[0056] In this embodiment, by using a data transmission interface 70 electrically connected to the industrial control computer 30 on the operation panel 20, preferably a USB interface, the problem of data export relying on manual copying or equipment disassembly in the prior art is effectively solved. This enables rapid transmission, convenient storage, and flexible retrieval of verification data, improves the data management efficiency and ease of use of the device, and enhances the maintainability and applicability of the overall system.

[0057] Please see Figures 1 to 2In some embodiments, the operation panel 20 has a third opening, and the portable data acquisition device further includes a power interface 80 to further improve the device's energy supply flexibility and continuous operation capability. The power interface 80 is disposed on the operation panel 20 and fixedly connected to the operation panel 20. To facilitate power connection and protection, the operation panel 20 has a third opening for mounting the power interface 80. The shape of this third opening matches the selected power interface 80, preferably being a rectangle or an irregularly shaped hole with rounded corners, and the edges are chamfered to avoid cuts or dust accumulation.

[0058] Specifically:

[0059] The power interface 80 is preferably a threaded plug structure with industrial protection performance. The interface shell is made of metal and is equipped with a waterproof ring and dustproof cover, allowing for long-term use outdoors or in high humidity and high dust environments. The power interface 80 is electrically connected to the power supply component 40 inside the housing 110 via a wire. The wire is a high-temperature resistant, interference-resistant double-shielded cable and is fixed by a clip or cable clamp to ensure that it does not loosen during movement or vibration.

[0060] This structure enables the device to be powered by external AC power or other DC power sources, making it particularly suitable for scenarios where the internal battery is low or continuous operation for extended periods is required. When powered via power interface 80, the power management module in power supply component 40 automatically identifies the power supply status, prioritizes the use of external power, and simultaneously charges the internal battery pack with constant voltage and constant current, achieving parallel charging and power supply operations. The power supply status and interface energization status can be displayed in real time on the human-machine interface of operation panel 20, facilitating operator assessment of the power supply status.

[0061] During operation, if the battery power is insufficient, the operator only needs to connect an external power source through the power interface 80 to continue data acquisition and verification without interrupting the task or replacing equipment, ensuring the continuous operation of the verification process. This interface can also be connected to a fixed power supply system for long-term deployment of equipment at fixed testing locations.

[0062] In this embodiment, by adopting a technical means of providing a third opening on the operation panel 20 for installing the power interface 80 and electrically connecting the power interface 80 to the power supply component 40, the problem of portable data acquisition devices relying on batteries, having limited battery life, and being unable to flexibly switch power sources on site is effectively solved. This achieves the technical effect of rapid access to external power, long-term stable power supply, and real-time charging in parallel, significantly improving the adaptability, battery life, and operational continuity of the device.

[0063] To enhance the power supply control capabilities of portable data acquisition devices and improve user controllability and safety regarding the power-on and power-off status of the entire device, please refer to [link / reference needed]. Figures 1 to 3 In some embodiments, the operation panel 20 has a fourth opening, and the power supply assembly 40 includes a power switch 410 and a switching power supply 420. The power switch 410 is connected to the operation panel 20 and is located at the fourth opening. The switching power supply 420 is electrically connected to the data acquisition unit, the industrial computer 30, and the power switch 410. Furthermore, the power switch 410 is also electrically connected to the power interface 80.

[0064] Specifically:

[0065] The fourth opening is the mounting hole for the power switch 410, preferably a regular rectangular structure, whose size matches the shape of the power switch 410. It is fixed to the inside of the panel by a snap or thread structure. The edge of the fourth opening is equipped with an insulating gasket to improve the safety level.

[0066] The power switch 410 is a panel-type rocker switch or a metal push-button self-locking switch with clear start / stop status indicators. Users can directly control the power supply of the entire unit from the front of the operation panel 20, offering convenience and avoiding the inconvenience and risks of opening the cover or touching internal wiring. The input terminal of the power switch 410 is electrically connected to the power interface 80 on the operation panel 20 via a cable, while the output terminal is connected to the switching power supply 420 module inside the housing 110, forming a complete power supply control path.

[0067] The 420 switching power supply is a high-efficiency, wide-input-voltage industrial modular power supply with short-circuit protection, overload protection, and regulated output. Its input terminal receives external voltage from the power interface 80, and its output terminals are branched to key load modules such as data acquisition units and industrial control computers 30, ensuring stable and reliable power supply to the entire device. Internal wiring uses multi-core insulated wires, with cable ties or binding loops between the wires to maintain a neat routing path and prevent electromagnetic interference and poor contact.

[0068] When the user connects an external power source through the power interface 80 on the operation panel 20, the power-on status of the entire machine can be controlled by the power switch 410. When the switch is in the open state, the switching power supply 420 is not conducting, and the data acquisition module and industrial control computer 30 are not subject to voltage, ensuring safety during maintenance or idle states; when the switch is closed, the power supply path is connected, the switching power supply 420 outputs voltage, and the data acquisition module and industrial control system immediately enter the operating state, improving the intuitiveness and control flexibility of the startup process.

[0069] During operation, if an abnormality occurs requiring rapid power cut-off, the operator can use a one-button switch to achieve an emergency stop, facilitating troubleshooting and preventing damage or mis-data collection caused by continuous operation. In this embodiment, by employing a fourth opening on the operation panel 20 and a power switch 410 electrically connected to the power interface 80, and simultaneously supplying power to the data acquisition unit and industrial computer 30 via a switching power supply 420, the existing technology effectively solves the problems of the inability for users to quickly control the power-on and power-off states of the equipment, the inflexible response of the power supply system, and potential safety hazards. This achieves visualized power supply control, convenient operation, and improved electrical system safety, enhancing the operability and reliability of the equipment in complex application environments.

[0070] To improve users' ability to identify the power status of portable data acquisition devices and enhance the intuitiveness and safety of on-site operation, please refer to [link / reference needed]. Figures 1 to 3 In some embodiments, the operation panel 20 has a fifth opening, and the power supply component 40 further includes a switch indicator light 430, which is connected to the operation panel 20 and disposed at the fifth opening. The switch indicator light 430 is electrically connected to the power switch 410.

[0071] Specifically:

[0072] The switch indicator light 430 is a visual indicator element used to display the on / off status of the power switch 410. The pre-set fifth opening on the operation panel 20 is preferably a circular or near-circular hole, the size of which matches the indicator light housing, and the switch indicator light 430 is securely fixed to the panel by a slot or threaded locking method. To prevent moisture, dust, and other environmental factors from affecting the indicator light's performance, the structure is also equipped with a sealing ring or a transparent insulating cover around the opening, providing good protective performance.

[0073] The indicator light 430 can be a low-voltage DC light-emitting diode assembly, preferably red or green. Its input terminal is connected to the output terminal of the power switch 410 via a wire, and structurally, it is integrated with the power cord through soldering or connectors to ensure electrical stability. The illumination state of the indicator light 430 is directly linked to the conduction state of the power switch 410: when the power switch 410 is closed, the indicator light illuminates, indicating that the user equipment is in a powered-on state; when the switch is open, the indicator light goes out, indicating that the equipment is in a power-off state.

[0074] This visual indication function is particularly crucial in practical use, especially when multiple devices are being tested in parallel or in poor lighting conditions, as it can significantly reduce the risk of misoperation. For example, before performing maintenance, wiring, or replacing sensors, operators can observe the indicator light status to determine if the equipment is powered off, thereby improving personal safety and operational efficiency.

[0075] In practical applications, the indicator light 430 can be integrated with a transparent lampshade and flush with the surface of the control panel 20, improving overall aesthetic consistency and industrial design quality. In some implementations, the indicator light may also have a flashing function to warn of abnormal voltage or equipment malfunction.

[0076] In this embodiment, by adopting the technical means of opening a fifth opening on the operation panel 20 and setting a switch indicator light 430 electrically connected to the power switch 410, the problems of difficult identification of the power status of the equipment, lack of intuitive feedback for user operation, and potential hazards of incorrect power connection or live operation in the prior art are effectively solved. Thus, the power supply status is visualized and real-time feedback is realized, improving the safety, ease of use and reliability of the device.

[0077] To improve the temperature control performance of portable data acquisition devices under high load and long-term operation, and to prevent internal electronic components from malfunctioning or being damaged due to excessive temperature rise, please refer to [link to relevant documentation]. Figures 1 to 3 In some embodiments, the operation panel 20 is provided with a first heat dissipation hole 210 and a second heat dissipation hole 220. The portable data acquisition device also includes a heat dissipation assembly 90, which is disposed within the first accommodating space 111 of the housing 10 and forms a stable airflow path with the heat dissipation holes on the operation panel 20, thereby achieving effective internal heat dissipation and ventilation. The heat dissipation assembly 90 includes a first cooling fan 910 and a second cooling fan 920. The first cooling fan 910 is disposed on the side of the operation panel 20 facing the first accommodating space 111 and aligned with the first heat dissipation hole 210. The first cooling fan 910 is configured to draw in outside air through the first heat dissipation hole 210 when the heat dissipation assembly 90 is in operation. The second cooling fan 920 is disposed on the side of the operation panel 20 facing the first accommodating space 111 and aligned with the second heat dissipation hole 220. The second cooling fan 920 is configured to exhaust air from the first accommodating space 111 through the second heat dissipation hole 220 when the heat dissipation assembly 90 is in operation.

[0078] Specifically:

[0079] The first heat dissipation hole 210 and the second heat dissipation hole 220 are both located on one side of the operation panel 20. They are preferably multiple circular or elliptical through holes arranged in an array. The hole diameter is set according to the air volume requirement, and a protective mesh cover is provided on the outside to prevent foreign objects from entering. Under the action of the heat dissipation component 90, the air inside the first accommodating space 111 can form a continuous flow path.

[0080] The first cooling fan 910 is fixedly installed on the back side of the operation panel 20, that is, the side facing the first accommodating space 111, and its air intake side is directly opposite the first heat dissipation hole 210. It is installed on a dedicated fan mounting plate by screws or clips. The first cooling fan 910 is an axial fan structure, configured to draw in external cold air during device operation, form a forced convection cooling airflow, and introduce it into the housing 110.

[0081] The second cooling fan 920 is also fixed to the inner surface of the control panel 20 facing the accommodating space, with its exhaust side aligned with the second heat dissipation hole 220. When in operation, this fan exhausts the heated air from the first accommodating space 111, thus creating a circulating ventilation path between the first heat dissipation hole 210 and the second heat dissipation hole 220. Together, they ensure that key components such as the industrial computer 30, the acquisition module, and the power supply remain within a suitable temperature range during operation.

[0082] Both the first cooling fan 910 and the second cooling fan 920 are low-noise, high-efficiency DC fans with reverse connection protection and over-temperature protection. They are centrally powered by the power supply component 40 and their start-stop sequence is uniformly controlled by the industrial control computer 30 port. The starting condition of the cooling component 90 can be automatically triggered by the temperature sensor detecting the internal temperature, or it can be set to run automatically when the device is powered on.

[0083] During operation, whether in a normal temperature environment or a high-temperature working environment, the heat dissipation component 90 can achieve rapid cooling, preventing heat from accumulating inside the housing 110. Especially in outdoor summer conditions or under conditions of long-term continuous data acquisition, this active cooling system significantly improves the device's temperature control capability and overall operational stability.

[0084] In this embodiment, by employing the technical means of opening a first heat dissipation hole 210 and a second heat dissipation hole 220 on the operation panel 20 respectively, and setting a first heat dissipation fan 910 for drawing in outside air and a second heat dissipation fan 920 for expelling air from the housing 110, the problem of poor heat dissipation, system overheating leading to performance degradation or component damage in portable data acquisition devices under high-intensity working conditions in the prior art is effectively solved. This achieves dynamic control of internal temperature, stable operation of key components, and a significant extension of the overall lifespan of the device.

[0085] To further optimize the interface layout of portable data acquisition devices and improve ease of use and connection efficiency, please refer to [link / reference needed]. Figures 1 to 2 In some embodiments, the operation panel 20 is further provided with a sixth opening and a seventh opening, and the data transmission interface 70 and the pressure sensor interface 60 are respectively located at the sixth opening and the seventh opening. To improve installation efficiency and adapt to various usage scenarios, both the power interface 80 and the pressure sensor interface 60 are configured as quick interfaces.

[0086] Specifically:

[0087] The shapes of the sixth and seventh openings are adapted to the installation structure of their respective interfaces. Circular, square, or irregularly shaped anti-rotation holes are preferred, and insulating sealing rings may be provided on the edges to prevent external dust and water from entering the equipment and enhance its protective performance.

[0088] The data transmission interface 70 is located at the sixth opening. The interface body adopts a standard industrial USB interface or other general data transmission structure, and its shell material is metal or high-strength engineering plastic, which has the ability to resist impact, oxidation and interference. This interface is electrically connected to the motherboard or communication module of the industrial control computer 30 through internal wires, realizing data exchange and file transfer with external storage devices, host computers or network systems. To ensure a compact structure and improve the operating feel, the interface is installed in an embedded fixed manner, and the interface surface is basically flush with the outer surface of the operation panel 20 to avoid external scratches or accidental touches.

[0089] The pressure sensor interface 60 is located at the seventh opening and is used to connect an external pressure sensor for calibrating the safety valve. This interface is an industrial signal connector specifically designed for low-voltage analog or digital signal input. Its body is locked to the operation panel 20, preferably using a snap-fit ​​or threaded tightening method. It features shock resistance, anti-dislodgement, and mis-insertion protection functions to ensure stable and reliable sensor signal input.

[0090] Quick-connect interfaces are industrial-grade connectors that allow for electrical connections without complex screwing or soldering, simply by plugging, crimping, or locking. These interfaces mostly feature an integrated structure, offering features such as reverse connection protection, accurate positioning, and reliable contact. They are widely used in portable, outdoor, or frequently connected / disconnected equipment. Quick-connect interfaces integrate a self-locking mechanism in their mechanical structure, automatically locking upon insertion and quickly releasing with a light press or rotation, significantly improving the efficiency of equipment deployment, debugging, and replacement.

[0091] During operation, the operator only needs to insert the pressure sensor into the quick interface corresponding to the seventh opening. Once the connection is complete, the signal channel will be automatically identified. After the verification is completed, the sensor can be quickly unplugged for easy movement and storage.

[0092] In this embodiment, by employing a sixth and seventh opening on the operation panel 20 for installing the data transmission interface 70 and the pressure sensor interface 60, and by using a quick interface structure to achieve efficient connection between the power supply and the sensor, the problems of cumbersome interface installation, unreliable connection, inconvenience of use, and low operating efficiency in the prior art are effectively solved. This results in a more rational interface layout, more efficient connection operation, and a significant improvement in the user experience of the device, enhancing the adaptability and reliability of the portable data acquisition device in industrial environments.

[0093] To further enhance the protective performance of portable data acquisition devices during non-operational states such as transportation and storage, and to ensure that their critical components are not affected by the external environment, please refer to [link / reference needed]. Figures 1 to 2 In some embodiments, the housing 10 further includes a cover 120, which is connected to the housing 110. The cover 120 is configured to cover the first opening 112 of the housing 110 when the portable data acquisition device is not in operation, thereby protecting the internal operation panel 20 and mounting components.

[0094] Specifically:

[0095] The cover 120 preferably adopts a planar plate structure that is integrally coordinated with the shell 110. Its shape is consistent with the outline of the opening of the shell 110, and its edges are equipped with sealing strips, pressing edges, or stop designs to enhance the closure and seal and prevent dust, moisture, oil, and other impurities from entering. The cover 120 body can be made of high-strength aluminum alloy, engineering plastics, or composite materials, combining lightweight and impact resistance.

[0096] Regarding the connection method, the lid 120 is fixedly connected to the housing 110 via a hinge structure. The hinge is located on the upper side or rear edge of the housing 110, allowing the lid 120 to be flipped open and closed vertically or horizontally, facilitating quick opening and closing by operators. To prevent the lid 120 from accidentally opening during transportation, the lid 120 can also be equipped with a knob lock, spring lock, or latch-type buckle structure, ensuring that the lid 120 is securely locked in the closed state, ensuring that the entire device is in a closed and protected state.

[0097] When the portable data acquisition device is not in operation, or during transportation, on-site handling, or external storage, the operator can rotate the lid 120 to the closed position to cover the control panel 20 and the opening area, preventing external factors such as dust, rain, and mechanical impact from affecting the industrial control computer 30, sensor interfaces, indicator lights, and other components. When closed, the lid 120 forms a unified structure, which not only improves overall strength but also facilitates stacking and storage.

[0098] To enhance portability, a handle or anti-slip stripes can be provided on the outside of the case cover 120 for easy gripping and handling. In specific applications, the case cover 120 can also be equipped with a nameplate area, label pasting area or information display area to identify the equipment number, user unit or calibration status for easy identification and management.

[0099] This implementation effectively solves the problems of exposed panels, easily damaged interfaces, and weak environmental resistance of portable data acquisition devices in the prior art during idle or transportation by using a flip-top cover 120 on the housing 10 and configuring it to cover the first opening 112 of the housing 110 when the portable data acquisition device is not in operation. This achieves safe sealing, enhanced protection, and extended service life of the device when it is not in operation, thereby improving overall reliability and adaptability to field use.

[0100] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A portable data acquisition device for safety valve calibration, characterized in that, include: The housing includes a shell, the shell including a first accommodating space and a first opening formed on one side of the shell, the first opening communicating with the first accommodating space; An operation panel is connected to the housing and is located at the first opening; the operation panel also includes a second opening. An industrial computer is connected to the operation panel and is located at the second opening; A power supply component is disposed within the first accommodating space, and the power supply component is electrically connected to the industrial control computer; A data acquisition device is disposed within the first accommodating space, and the data acquisition device is electrically connected to the industrial control computer and the power supply component; A pressure sensor interface is located on the operation panel, and the pressure sensor is electrically connected to the data acquisition unit.

2. The portable data acquisition device according to claim 1, characterized in that, It also includes a data transmission interface, which is located on the operation panel and is electrically connected to the industrial control computer.

3. The portable data acquisition device according to claim 2, characterized in that, The data transmission interface is a USB interface.

4. The portable data acquisition device according to claim 1, characterized in that: The operation panel has a third opening; The portable data acquisition device also includes a power interface, which is connected to the operation panel and located at the third opening. The power interface is electrically connected to the power supply component.

5. The portable data acquisition device according to claim 4, characterized in that: The operation panel has a fourth opening; The power supply component includes: A power switch is connected to the operation panel and is located at the fourth opening; A switching power supply is electrically connected to the data acquisition device, the industrial control computer, and the power switch. The power switch is also electrically connected to the power interface.

6. The portable data acquisition device according to claim 5, characterized in that: The operation panel has a fifth opening; The power supply component also includes a switch indicator light, which is connected to the operation panel and located at the fifth opening. The switch indicator light is electrically connected to the power switch.

7. The portable data acquisition device according to any one of claims 1-6, characterized in that: The operation panel is provided with a first heat dissipation hole and a second heat dissipation hole; The portable data acquisition device further includes a heat dissipation component disposed within the first accommodating space. The heat dissipation component includes: The first cooling fan is disposed on the side of the operation panel facing the first accommodating space and aligned with the first heat dissipation hole. The first cooling fan is configured to draw in outside air through the first heat dissipation hole when the heat dissipation component is in working state. The second cooling fan is disposed on the side of the operation panel facing the first accommodating space and aligned with the second heat dissipation hole. The second cooling fan is configured to exhaust air in the first accommodating space through the second heat dissipation hole when the heat dissipation component is in working state.

8. The portable data acquisition device according to claim 2, characterized in that, The operation panel is also provided with a sixth opening and a seventh opening, and the data transmission interface and the pressure sensor interface are respectively located at the sixth opening and the seventh opening.

9. The portable data acquisition device according to claim 4, characterized in that, Both the power interface and the pressure sensor interface are configured as fast interfaces.

10. The portable data acquisition device according to claim 1, characterized in that, The housing also includes a lid, which is connected to the shell and is configured to cover the first opening of the shell when the portable data acquisition device is not in operation.

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