A pressure instrument batch efficient intelligent metering and testing device

Abstract

The utility model discloses a pressure instrument batch high -efficient intelligent metering calibration device, including pressure controller, pressure source and detection connecting platform, and detection connecting platform assembly includes the pressure pipeline connected with pressure source, and a plurality of detection branch are connected in parallel on pressure pipeline, and still be equipped with a plurality of connection control each detection branch on -off solenoid valve module on pressure pipeline, and solenoid valve module is connected with pressure controller signal, be equipped with a plurality of detection interfaces for connecting pressure instrument on detection branch, still be equipped with pressure sensor module for measuring the gas pressure of detection branch on detection branch, the utility model discloses through pressure controller can according to the feedback of different branch pressure sensor module, accurate control each branch pressure peak value, realize once and calibrate many different range pressure instrument, through pressure controller according to the feedback difference of detection setting value and pressure sensor module, real -time adjustment pressure source output, realize pressure fast approximation detection setting value.

Description

Technical Field

[0001] This utility model relates to the field of pressure instrument calibration technology, specifically to a batch high-efficiency intelligent metrological calibration device for pressure instruments. Background Technology

[0002] Pressure instruments are key measuring instruments in industrial production, energy measurement, and special equipment safety. Their measurement accuracy is directly related to production safety and fair trade. Pressure instruments need to be calibrated to ensure that their measurement error is within the allowable range.

[0003] Existing pressure instrument calibration devices are mostly single-channel or limited-channel designs, capable of calibrating only 1-2 pressure instruments of the same range at a time. To calibrate instruments with different ranges, repeated replacement of pressure standard modules and adjustment of pipeline connections are necessary, making the process cumbersome and unsuitable for batch calibration. The connection between existing calibration devices and pressure instruments often uses threaded connections, requiring multiple rotations for each installation and removal. This is not only time-consuming but also prone to wear on the instrument and calibration device interfaces, affecting connection sealing and lifespan. Furthermore, traditional calibration devices often employ manual or simple PID control, resulting in slow pressure regulation response, poor stability, and a tendency for overshoot, leading to instrument damage or distorted calibration data. Due to the lack of an integrated information management system, calibration personnel must manually record instrument information and calibration data, increasing the risk of human error. Calibration certificates must also be manually prepared, resulting in a cumbersome process with low standardization. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a batch, efficient, and intelligent metrological verification device for pressure instruments. This device can perform batch, rapid, and accurate automated verification operations on pressure instruments with different ranges within the same air pressure standard source, solving the practical problems of inaccurate pressure control, low verification efficiency, and high error probability in traditional pressure metrological verification.

[0005] The technical solution adopted by this utility model is: a batch high-efficiency intelligent metrological verification device for pressure instruments, including a pressure controller, a pressure source, and a detection connection platform. The detection connection platform assembly includes a pressure pipeline connected to the pressure source, and several detection branches are connected in parallel on the pressure pipeline. The pressure pipeline is also provided with multiple solenoid valve modules that connect and control the on / off state of each detection branch. The solenoid valve modules are signal-connected to the pressure controller. The detection branches are provided with several detection interfaces for connecting pressure instruments. The detection branches are also provided with pressure sensor modules for measuring the air pressure of the detection branches.

[0006] In this technical solution, multiple testing branches are connected to pressure gauges on the testing connection platform. Each testing branch can be connected to a pressure gauge with the same range. The controller controls the pressure source to apply pressure to each testing branch. The controller can receive the pressure value of each testing branch through the pressure sensor module. During testing, the controller can control the on / off of each solenoid valve module according to the pressure signal, thereby controlling the pressure peak value of different testing branches. This allows for the simultaneous calibration of multiple pressure gauges with different ranges, avoiding repeated replacement of pressure standard modules and enabling fast and accurate calibration operations.

[0007] Preferably, the pressure controller is connected to a control panel.

[0008] Preferably, the detection interface is equipped with a quick-connect connector for connecting to a pressure gauge.

[0009] Preferably, the pressure pipeline is a pressure-resistant stainless steel pipeline.

[0010] The beneficial effects of this utility model are as follows: This utility model's batch high-efficiency intelligent metrological verification device for pressure instruments combines structural innovation with intelligent control. The testing connection table adopts a multi-parallel testing branch design, with each branch capable of connecting to pressure instruments of the same range. The pressure controller can accurately control the pressure peak value of each branch based on feedback from the pressure sensor modules of different branches, enabling the verification of multiple pressure instruments with different ranges at once without repeatedly replacing standard modules. The testing interface uses a quick-connect coupling design, replacing the traditional threaded connection, allowing for installation and removal without rotation. This also avoids interface wear caused by thread friction, extending the service life of the device and instruments and reducing maintenance costs. During the verification process, the pressure controller adjusts the pressure source output in real time based on the difference between the test set value and the feedback value from the pressure sensor module, achieving rapid pressure approximation to the test set value, thus possessing high practical value. Attached Figure Description

[0011] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0012] Figure 1 This is a structural diagram of the testing connection table of the batch high-efficiency intelligent metrological verification device for pressure instruments provided in this embodiment of the utility model.

[0013] Figure 2 This is a schematic diagram of the control system of the batch high-efficiency intelligent metering and verification device for pressure instruments provided in the embodiments of this utility model.

[0014] Reference numerals: pressure controller 100, pressure source 200, pressure pipeline 300, detection branch 400, solenoid valve module 500, pressure sensor module 600, control panel 700, quick connector 800. Detailed Implementation

[0015] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0016] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0017] like Figure 1 As shown in the figure, a specific embodiment of this utility model provides a batch high-efficiency intelligent metrological verification device for pressure instruments, including a pressure controller 100, a pressure source 200, and a detection connection platform. The detection connection platform assembly includes a pressure pipeline 300 connected to the pressure source 200. Several detection branches 400 are connected in parallel on the pressure pipeline 300. The pressure pipeline 300 is also provided with multiple solenoid valve modules 500 that connect and control the on / off state of each detection branch 400. The solenoid valve modules 500 are signal-connected to the pressure controller 100. Several detection interfaces for connecting pressure instruments are provided on each detection branch 400. Pressure sensor modules 600 for measuring the air pressure of the detection branch 400 are also provided on each detection branch 400.

[0018] like Figure 1 As shown, through the above configuration, this embodiment utilizes multiple testing branches 400 on the testing connection platform to connect pressure gauges. Each testing branch 400 can be connected to a pressure gauge with the same range. The controller controls the pressure source 200 to apply pressure to each testing branch 400. The controller can receive the pressure value on each testing branch 400 through the pressure sensor module 600. During testing, the controller can control the on / off state of each solenoid valve module 500 according to the pressure signal, thereby controlling the pressure peak value of different testing branches 400. This enables the simultaneous calibration of multiple pressure gauges with different ranges, avoiding repeated replacement of pressure standard modules and achieving fast and accurate calibration operations.

[0019] In practical applications, the entire system should also be connected to a power supply system, primarily a 220V regulated power supply. This forms the hardware structure through the power supply, pressure source, controller, and testing dock. To facilitate various operations by technicians during calibration, the pressure controller is also connected to a control panel. The control panel has a built-in operation control system, which includes pressure calibration software. This allows for high-precision measurement of the pressure signal using a high-precision pressure sensor and controller, providing real-time feedback of the continuous pressure signal to the information workstation. The control system can then perform fuzzy PID control based on the feedback pressure value, achieving rapid and precise pressure control at any pressure setpoint. Specifically, the control panel uses the difference between the set pressure value and the pressure value measured by the standard pressure sensor as the input to the pressure controller. Through adaptive fuzzy PID control, the controller generates a precise pressure control signal for the pressure generating device, rapidly approximating the set standard pressure at varying rates.

[0020] like Figure 2 As shown, the operation control system includes pressure calibration software comprising five main functional modules: registration, parameter setting, calibration operation, query and record, and login / exit. The registration module primarily records and saves basic information about calibration personnel, pressure instruments, and standards. The calibration operation module is set strictly according to calibration or regulations. The software automatically identifies and selects standard instruments. Based on the pressure signal received from the pressure sensor, the operation module ensures that the pressure control accuracy meets calibration requirements. When the calibration pressure reaches the maximum pressure value of the tested pressure instrument, it outputs a control signal to control the on / off state of the solenoid valve module to prevent pressure overload and ensure that pressure gauges of different ranges can be calibrated simultaneously. After calibration, the module automatically calculates, saves, and prints certificates as required. The query and record module allows for record queries in various formats, such as certificate number, instrument number, submitting unit, and submission time, and can print or preview calibration certificates or calibration result notifications. The login / exit module mainly includes login password design and exit information prompts.

[0021] The testing connection platform is a crucial hardware device for simultaneously calibrating pressure instruments with different ranges. In this embodiment, a quick-connect coupling for connecting to the pressure instruments is provided at the testing interface. This quick-connect coupling simplifies and makes control of the traditionally cumbersome threaded connection, while also reducing wear on the pressure instruments and testing interface caused by thread rotation. For materials, the pressure piping is made of pressure-resistant stainless steel. This is because the maximum designed bearing pressure inside the pressure piping is much greater than the actual bearing pressure. To ensure the safety of the pressure piping, it is necessary to analyze the maximum stress-strain of the connection platform to ensure that the actual internal bearing stress is much less than the design bearing stress. During the design process, UG software and finite element technology are used to simulate and analyze the internal stress distribution of the pressure piping under maximum pressure, thereby rationally setting the specifications such as the internal pipe wall thickness.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A batch high-efficiency intelligent metrological verification device for pressure instruments, comprising a pressure controller (100) and a pressure source (200); characterized in that, It also includes a testing connection station, The detection connection platform includes a pressure pipeline (300) connected to a pressure source (200), and several detection branches (400) are connected in parallel on the pressure pipeline (300). The pressure pipeline (300) is also provided with multiple solenoid valve modules (500) that connect and control the on / off state of each detection branch (400). The solenoid valve modules (500) are signal connected to the pressure controller (100). The detection branch (400) is provided with several detection interfaces for connecting pressure gauges; The detection branch (400) is also equipped with a pressure sensor module (600) for measuring the air pressure of the detection branch (400).

2. The batch high-efficiency intelligent metrological verification device for pressure instruments according to claim 1, characterized in that, The pressure controller (100) is connected to a control panel (700).

3. The batch high-efficiency intelligent metrological verification device for pressure instruments according to claim 1, characterized in that, The detection interface is equipped with a quick-connect connector (800) for connecting to a pressure gauge.

4. The batch high-efficiency intelligent metrological verification device for pressure instruments according to claim 1, characterized in that, The pressure pipeline (300) is a pressure-resistant stainless steel pipeline.

Images