Comprehensive intelligent inspection device and method for safety valve and pressure gauge
By integrating the inspection of safety valves and pressure gauges into a comprehensive intelligent inspection device, and using high-accuracy pressure modules and intelligent controllers, the inspection of safety valves and pressure gauges is automated and intelligent. This solves the problems of increased costs and insufficient inspection accuracy caused by separate inspection, and improves inspection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-03-17
AI Technical Summary
In the existing technology, the inspection of safety valves and pressure gauges is carried out by different technical institutions, which increases the cost of manpower and materials. In addition, the accuracy level of the standard instruments used for safety valve calibration is low, and the pressure control stability and precision are insufficient, which cannot meet the high standard requirements for equipment safety assurance.
A comprehensive intelligent testing device for safety valves and pressure gauges is provided, including a testing control terminal, a pressure source, two intelligent pressure controllers, and two dedicated testing connection platforms. It integrates pressure gauge calibration and safety valve verification functions, and adopts a high-accuracy pressure module and intelligent pressure controller to realize an automated and intelligent testing process.
This system enables the inspection of safety valves and pressure gauges to be completed on the same device, saving inspection costs, improving inspection efficiency and accuracy, enhancing pressure control stability and precision, and meeting the high standards required for equipment safety assurance.
Smart Images
Figure CN121680352A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of pressure measurement and special equipment safety accessory verification, and particularly relates to a comprehensive intelligent verification device and method for safety valves and pressure gauges. BACKGROUND
[0002] In the field of pressure measurement and safe operation of special equipment, safety valves and elastic element type pressure gauges are key components to ensure stable operation of equipment and safety of personnel. Safety valves are overpressure protection safety relief devices, which are widely used in aerospace, nuclear power and petrochemical industries. When the pressure of the working medium in the pressure-bearing equipment exceeds the set pressure, the valve clapper opens to discharge the medium to reduce the pressure in the equipment. When the pressure returns to the safe range, the valve clapper returns to the closed position. It is the last line of defense for pressure-bearing special equipment, and its reliability directly affects the safety of personnel and equipment. Elastic element type pressure gauges are widely used in important fields such as industry, agriculture, science and technology, and military due to their reliability, intuition, and economy. Especially in dangerous places such as pressure vessels and pressure pipelines, the measurement accuracy is an important guarantee to avoid safety accidents such as equipment explosion.
[0003] Safety valves need to be periodically verified according to standards such as "Safety Valve Safety Technology Supervision Regulations" and "Pressure Relief Device Performance Test Method". Generally, at least once a year; pressure gauges are included in the mandatory verification directory and need to be strictly verified according to the measurement verification regulations. Currently, the industry uses independent technical solutions for safety valve and pressure gauge verification, which belong to different technical institutions: the business management and execution agency for pressure gauge mandatory verification is the measurement technology agency, which strictly follows JJG52-2013 "Elastic Element Type General Pressure Gauge, Pressure Vacuum Gauge and Vacuum Gauge Verification Regulations" for verification work. The verification equipment has gradually developed towards intelligence and digitization; the business management and execution agency for safety valve verification is the special equipment inspection agency, which implements "Safety Valve Safety Technology Supervision Regulations TSG ZF001-2006", and the intelligentization and automation level of its verification equipment is relatively lacking. The "standard device" used is mostly a 0.25 or 0.4 precision pressure gauge, and the control pressure sensor accuracy level is between 0.5 and 0.1.
[0004] In summary, the prior art scheme has obvious deficiencies: on the one hand, the pressure gauges and the safety valves are inspected by different technical institutions, and need to be sent for inspection separately, which greatly increases the cost of manpower and resources; on the other hand, the accuracy grade of the standard device used for safety valve calibration is lower than that of the pressure gauge calibration standard device (the latter is generally above 0.05), and the pressure control stability and refinement degree are insufficient, which leads to the difficulty of meeting the high standard requirements of the industry on equipment safety guarantee in terms of data quality and inspection efficiency of safety valve inspection, and the intelligent level of pressure gauge calibration cannot form synergy, which is not conducive to the safe and efficient promotion of production and operation. SUMMARY
[0005] In view of the deficiencies of the prior art, the present application provides a comprehensive intelligent inspection device and method for safety valves and pressure gauges, which can save customers' time and improve the inspection efficiency of safety valves and pressure gauges.
[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: In a first aspect, the present application provides a comprehensive intelligent inspection device for safety valves and pressure gauges, comprising: an inspection control terminal, a gas pressure source, two intelligent pressure controllers, and two inspection special connection tables; The inspection control terminal is provided with a detection software special for safety valves and pressure gauges; the two intelligent pressure controllers are a gas medium pressure controller and a liquid medium pressure controller, and are both provided with a pressure module; the inspection special connection tables are both equipped with automatic clamping and sealing devices; and the gas pressure source is used to provide initial pressure for the gas medium pressure controller and driving gas source for the automatic clamping and sealing devices of the inspection special connection tables.
[0007] As a further technical scheme, the inspection control terminal is interactively connected with the gas medium pressure controller and the liquid medium pressure controller, and the inspection control terminal is used to send pressure control instructions to the intelligent pressure controller, and simultaneously receive real-time pressure data and inspection process related signals fed back by the intelligent pressure controller.
[0008] As a further technical scheme, the gas pressure source is connected with the gas medium pressure controller through a gas circuit to provide initial pressure for the gas medium pressure controller, which is directly used or used after being pressurized again.
[0009] As a further technical scheme, the gas pressure source is connected with the two inspection special connection tables through a gas circuit to provide driving gas source for the automatic clamping and sealing devices of the inspection special connection tables, which is used to drive the flange connection tool to rise and seal with the flange interface of the inspected part.
[0010] As a further technical solution, the gas medium pressure controller and the liquid medium pressure controller are respectively connected with the corresponding test special connection table to output pressure, and the gas medium pressure controller and the liquid medium pressure controller are used to deliver the regulated standard pressure value to the corresponding test special connection table.
[0011] As a further technical solution, the test special connection table is adapted to the detected part with a threaded interface and a flange interface, and is provided with a corresponding threaded connection port and a connection tool adapted to different size flange interfaces.
[0012] As a further technical solution, the test special connection table is further provided with an intelligent identification device for reading the indication value of the detected pressure gauge and identifying the image of the detected safety valve in real time.
[0013] In the second aspect, the application provides a comprehensive intelligent test method for safety valves and pressure gauges, based on the comprehensive intelligent test device for safety valves and pressure gauges in any one of the first aspect, comprising: Turning on the test control terminal, the gas medium pressure controller, the liquid medium pressure controller and the air pressure source, starting the air pressure source to a preset pressure; installing the detected safety valve or pressure gauge on the corresponding test special connection table, and starting the automatic clamping and sealing device to complete the sealing; Entering the detected part information into the test software of the test control terminal, and automatically selecting and starting the corresponding intelligent pressure controller according to the detected part information; the intelligent pressure controller regulates the pressure of the test special connection table to the standard value according to the test pressure point value, the test software automatically reads and records the detected part data and the detection pressure curve; the test software completes the test according to the corresponding regulation, stores and records, and issues the calibration certificate or test report.
[0014] As a further technical solution, during the detection of the detected part, only one of the gas medium pressure controller and the liquid medium pressure controller is started, and the two are not started at the same time.
[0015] As a further technical solution, the test software automatically reads and records the detected part data, including the real-time indication value of the detected pressure gauge and the real-time image data of the detected safety valve.
[0016] The one or more technical solutions of the application have the following beneficial effects: The device provided by the application designs two intelligent pressure controllers (gas medium pressure controller and liquid medium pressure controller) and two test special connection tables, integrates pressure gauge calibration and safety valve verification functions, and the detected pressure gauge and the detected safety valve can be tested on the same device, without the need to be sent to the measurement technology institution and the special equipment inspection institution, which can save the manpower, material resources and time cost of "two-end inspection" for the inspection customers, improve the convenience of inspection, and save the test time.
[0017] The device provided by the application has two intelligent pressure controllers configured with pressure modules, compared with the 0.25 or 0.4 standard device commonly used in the existing safety valve verification, the accuracy level of the standard device for verification can be improved by configuring the high-accuracy level pressure module, and the pressure regulation stability of the intelligent pressure controller is better, the problem of wide pressure control range and insufficient fine degree in the existing safety valve verification is solved, and the accuracy and reliability of the verification result are ensured.
[0018] The special detection software carried by the verification control terminal can automatically receive the information of the detected part, select the matched gas / liquid medium intelligent pressure controller, realize automatic pressure regulation and control, and automatic execution of the verification process, and replace the mode of relying on manual operation in the traditional safety valve verification, and make up for the defects of insufficient intelligence and automation in the existing safety valve verification. BRIEF DESCRIPTION OF DRAWINGS
[0019] The drawings constituting a part of the specification of the application are used to provide a further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute an improper limitation on the application.
[0020] Figure 1 The figure is a schematic view of the composition structure of the comprehensive intelligent verification device for safety valves and pressure gauges. DETAILED DESCRIPTION
[0021] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation of the application. Unless otherwise specified, all technical and scientific terms used in the application have the same meaning as generally understood by those skilled in the art to which the application belongs.
[0022] Example 1 In order to solve the technical problems pointed out in the background art, to reduce the customer's travel and improve the verification efficiency of the safety valve and the pressure gauge, a comprehensive intelligent verification device for safety valves and pressure gauges is provided, as shown in Figure 1 The comprehensive intelligent verification device for safety valves and pressure gauges comprises a verification control terminal, a gas pressure source, two intelligent pressure controllers and two verification special connecting tables. The two intelligent pressure controllers are a gas medium pressure controller and a liquid medium pressure controller (only one is used at a time), and both are configured with a pressure module; the verification special connecting table is equipped with an automatic clamping and sealing device; the gas pressure source is used to provide initial pressure for the gas medium pressure controller and driving gas source for the automatic clamping and sealing device of the verification special connecting table. The combination of the intelligent pressure controller and the computer special verification software can quickly find the leakage (sealing) problem of the whole device; the related fast and efficient flange connection clamping device can further improve the installation efficiency of the pressure gauge and the safety valve of the flange interface.
[0023] In this embodiment, the accuracy class of the pressure module can be selected as 0.05, 0.02, or 0.01, depending on the requirements. The accuracy class of the intelligent pressure controller's output pressure is consistent with that of the configured pressure module. The intelligent pressure controller has functions such as precise pressure control, stable pressure rise and fall rate without overpressure risk, and automatic pressure compensation. Its pressure control stability is superior to that of manually controlled regulating valves.
[0024] The inspection control terminal is equipped with dedicated testing software for safety valves and pressure gauges. In this embodiment, the inspection control terminal is a computer equipped with dedicated testing software for safety valves and pressure gauges. The inspection control terminal has functions such as inputting information of the inspected parts, selecting intelligent pressure controllers, sending pressure control commands, receiving real-time data, automatically executing the inspection process, storing inspection records, and issuing calibration certificates / inspection reports. It is the control core of the device.
[0025] like Figure 1 As shown, the inspection control terminal is interactively connected to the gas medium pressure controller and the liquid medium pressure controller respectively. The inspection control terminal is used to send pressure regulation commands to the intelligent pressure controller, and at the same time receive real-time pressure data and inspection process related signals fed back by the intelligent pressure controller.
[0026] like Figure 1 As shown, an air circuit connection is established between the air pressure source and the gas medium pressure controller to provide initial pressure for direct use or repressurization. In addition, the air pressure source is also connected to two inspection-specific connection platforms to provide driving air for the automatic clamping and sealing device of the inspection-specific connection platform, which is used to drive the flange connection tool to rise and connect and seal with the flange interface of the inspected part.
[0027] In this embodiment, two dedicated testing connection tables are respectively adapted to testing scenarios involving gaseous and liquid media, and do not operate simultaneously. In addition to an automatic clamping and sealing device, each testing connection table is equipped with an intelligent recognition device for real-time reading of the pressure gauge readings and real-time identification of the images of the safety valves under test. Furthermore, the testing connection tables are compatible with both threaded and flanged interfaces of the tested components (safety valves or pressure gauges), and are equipped with corresponding threaded connection ports and connection tools suitable for flanges of different sizes.
[0028] In this embodiment, the gas medium pressure controller and the liquid medium pressure controller establish pressure output connections with the corresponding inspection-specific connection platform, respectively. The gas medium pressure controller and the liquid medium pressure controller are used to transmit the regulated standard pressure value to the corresponding inspection-specific connection platform.
[0029] The device provided in this embodiment can be used to test pressure gauges and safety valves. The accuracy class of the pressure gauge under test can be 0.1 or lower, including pointer-type precision pressure gauges, elastic element type general pressure gauges, pressure vacuum gauges and vacuum gauges, digital pressure gauges, etc. (The original device can theoretically only test elastic element type general pressure gauges with an accuracy class of 1.6 or lower).
[0030] Furthermore, the pressure gauges and safety valves under test can be installed on the same integrated testing platform; threaded pressure gauges and safety valves, as well as flange pressure gauges and safety valves, can all be installed on the same platform.
[0031] Example 2 This embodiment provides a comprehensive intelligent testing method for safety valves and pressure gauges, based on a comprehensive intelligent testing device for safety valves and pressure gauges provided in Embodiment 1, and includes the following process: First, turn on the inspection control terminal (using a computer equipped with dedicated testing software for safety valves and pressure gauges), gas medium pressure controller, liquid medium pressure controller, and air pressure source. Start the air pressure source to the preset pressure. In this embodiment, the preset pressure is 7MPa, which is used for the lifting and sealing of the pressure gauge and safety valve connection device at the flange interface. At the same time, it provides the initial air pressure to the gas medium pressure controller for direct use or for use after repressurization. The air pressure source also has the function of automatically replenishing pressure.
[0032] Then turn on the standard to display the real-time pressure normally, install the safety valve or pressure gauge to be tested onto the corresponding test-specific connection platform, and start the automatic clamping sealing device to complete the sealing.
[0033] Then, the information of the inspected part is entered into the inspection software of the inspection control terminal. In this embodiment, the information of the inspected part includes the measurement range of the safety valve or pressure gauge, etc. According to the information of the inspected part, the inspection software automatically selects and starts the corresponding intelligent pressure controller (either a gas medium pressure controller or a liquid medium pressure controller is used, and they are not started at the same time); the intelligent pressure controller adjusts the pressure of the inspection-specific connecting table to the standard value according to the inspection pressure point value; the inspection software automatically reads and records the data of the inspected part and the test pressure curve; the inspection software completes the inspection according to the corresponding procedure, stores the records, and issues a calibration certificate or inspection report.
[0034] When inspecting pressure gauges or safety valves with threaded interfaces, simply install them onto the corresponding threaded connection port on the inspection connection table. When inspecting pressure gauges or safety valves with flange interfaces, install them onto a dedicated flange connection tool of the corresponding size at the pressure output port. Then, activate the automatic clamping device to raise the flange connection device so that it fully engages with the flange interface of the pressure gauge or safety valve being inspected and seals it well. Finally, the computer-controlled intelligent pressure controller completes the inspection work according to the corresponding technical specifications.
[0035] In this embodiment, during the testing of the tested component, only one of the gas medium pressure controller and the liquid medium pressure controller is activated, and the two are not activated simultaneously; wherein, the testing software automatically reads and records the tested component data, including the real-time reading of the pressure gauge under test and the real-time image data of the safety valve under test.
[0036] Various modifications and variations of this invention will be apparent to those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A comprehensive intelligent inspection device for safety valve and pressure gauge, characterized in that, The utility model relates to a kind of intelligent pressure test system, including: Test control terminal, gas pressure source, two intelligent pressure controllers and two test special connecting platforms; The test control terminal is equipped with safety valve and pressure gauge detection software;The two intelligent pressure controllers are gas medium pressure controller and liquid medium pressure controller respectively, and both are equipped with pressure module;The test special connecting platform is equipped with automatic clamping sealing device;The gas pressure source provides initial pressure for gas medium pressure controller and driving gas source for the automatic clamping sealing device of test special connecting platform.
2. An integrated intelligent testing device for safety valve and pressure gauge as claimed in claim 1, wherein, The test control terminal is connected with gas medium pressure controller and liquid medium pressure controller, and sends pressure control instruction to intelligent pressure controller, receives real-time pressure data and test process related signals from intelligent pressure controller.
3. An integrated intelligent testing device for safety valve and pressure gauge as claimed in claim 1, wherein, The gas pressure source is connected with gas medium pressure controller, provides initial pressure for gas medium pressure controller, and is directly used or used after pressure increasing.
4. An integrated intelligent testing device for safety valve and pressure gauge as claimed in claim 1, wherein, The gas pressure source is connected with two test special connecting platforms respectively, provides driving gas source for the automatic clamping sealing device of test special connecting platform, and drives flange connecting tool to rise and seal with the flange interface of the tested piece.
5. An integrated intelligent testing device for safety valve and pressure gauge as claimed in claim 1, wherein, Gas medium pressure controller and liquid medium pressure controller are connected with corresponding test special connecting platform, and deliver standard pressure value to corresponding test special connecting platform.
6. An integrated intelligent testing device for safety valve and pressure gauge as claimed in claim 1, wherein, The test special connecting platform is adapted to the tested piece with screw interface and flange interface, and is equipped with corresponding screw connection port and connecting tool for different size flange interface.
7. An integrated intelligent testing device for safety valve and pressure gauge as claimed in claim 1, wherein, The test special connecting platform is also equipped with intelligent identification device, which reads the value of tested pressure gauge and identifies the image of tested safety valve in real time.
8. An integrated intelligent testing method for safety valve and pressure gauge based on the integrated intelligent testing device for safety valve and pressure gauge according to any one of claims 1-6, characterized in that, Including: Start test control terminal, gas medium pressure controller and liquid medium pressure controller and gas pressure source, and start gas pressure source to preset pressure; Install tested safety valve or pressure gauge on corresponding test special connecting platform, and start automatic clamping sealing device to complete sealing; Enter tested piece information into test software of test control terminal, and automatically select corresponding intelligent pressure controller according to tested piece information; Intelligent pressure controller controls the pressure of test special connecting platform to standard value according to test pressure point value, test software automatically reads and records tested piece data and detection pressure curve;Test software completes test according to corresponding regulation, stores record and issues calibration certificate or test report.
9. A method of integrated intelligent testing of a safety valve and pressure gauge as claimed in claim 8, characterized in that, During testing, only one of gas medium pressure controller and liquid medium pressure controller is started.
10. The integrated intelligent testing method for safety valve and pressure gauge according to claim 8, characterized in that, Test software automatically reads and records tested piece data, including real-time value of tested pressure gauge and real-time image data of tested safety valve.