Ultrahigh pressure water / gas test equipment

Abstract

The invention relates to ultrahigh pressure water / gas test equipment which comprises a local test unit, a remote monitoring unit and a control line, and the local test unit comprises a CPCI measurement and control mainframe box and a tested object. The CPCI measurement and control mainframe box comprises a mainframe interface, a valve driving module, a data acquisition module and a conduction and insulation test module which are connected with the mainframe interface through an internal bus. The data acquisition module comprises a DO signal interface and an A / D signal interface and is connected with a tested object. The local test unit carries out data transmission with the remote monitoring unit through the 4G wireless communication module, and can be equipped with an HMI local monitoring display screen. Compared with the prior art, remote monitoring and unattended testing of ultrahigh pressure water / gas testing are achieved, testing safety and working efficiency are improved, and the technical problems that in traditional testing, personnel safety risks are large, and testing efficiency is low are solved.

Description

Technical Field

[0001] The present invention relates to a ultra-high pressure water / gas test equipment, and more particularly to a ultra-high pressure water / gas test equipment. Background Art

[0002] With the rapid development of fields such as aerospace, energy, petrochemical industry, etc., the application of ultra-high pressure water / gas test in industrial production and scientific research is becoming increasingly widespread. As an important tool for detecting product performance and verifying design solutions, the test accuracy, safety and automation level of ultra-high pressure water / gas test equipment directly affect the reliability of test results and the safety of the test process.

[0003] At present, most traditional ultra-high pressure water / gas test equipment operates and monitors in a manual attendance mode. This test method not only requires professional technicians to be on-site for a long time, but also due to the influence of human factors, it is difficult to guarantee the test accuracy and consistency. At the same time, there are great safety risks in the test under ultra-high pressure environment, posing a threat to the personal safety of test personnel.

[0004] In the prior art, there have been some improvement schemes for electrical test systems. For example, Chinese Patent CN116754908B discloses a multi-channel conduction insulation test system and test method based on solid state relays. This system has the advantages of long service life, no mechanical contacts and fast response speed by using solid state relays to replace electromagnetic relays. However, this system is mainly for conduction insulation test and lacks comprehensive support for ultra-high pressure water / gas test. Chinese Patent Application CN119492967A provides a test system and method for the general integrated electrical system of a launch vehicle, which can realize the resistance test of the time sequence path of the initiator and the conduction insulation test of the cable of the launch vehicle by a single ground test equipment. However, this system does not consider the requirements of remote monitoring and unattended operation and has potential safety hazards in the ultra-high pressure test environment.

[0005] In summary, the ultra-high pressure water / gas test equipment in the prior art has the following deficiencies:

[0006] 1. Most test equipment still relies on manual attendance and cannot realize remote monitoring and unattended operation, which not only increases the labor cost but also has potential safety hazards;

[0007] 2. Lack of an integrated solution for integrating electrical control, data acquisition and safety protection, and the system integration degree is not high.

[0008] Therefore, it is urgent to develop a ultra-high pressure water / gas test equipment that can realize unattended operation, remote monitoring, high-precision data acquisition, and is safe and reliable to meet the requirements of ultra-high pressure water / gas test in modern industrial and scientific research fields. Summary of the Invention

[0009] The object of the present invention is to overcome the defects existing in the above-mentioned prior art and provide an ultra-high pressure water / gas test equipment, which integrates high-speed data acquisition, remote monitoring and unattended functions, and is used for automatically testing the airtightness, strength and solenoid valve action characteristics of high-pressure equipment.

[0010] The object of the present invention can be achieved by the following technical solutions:

[0011] An ultra-high pressure water / gas test equipment, the equipment includes a local test unit, a remote monitoring unit and a control line. Among them, the local test unit includes a CPCI measurement and control main chassis and a device under test. The CPCI measurement and control main chassis transmits data to the remote monitoring unit through wireless connection, and the device under test is connected to the CPCI measurement and control main chassis through the control line;

[0012] The CPCI measurement and control main chassis includes a host interface, a valve drive module, a data acquisition module and a conduction and insulation test module. The valve drive module, the data acquisition module and the conduction and insulation test module are connected to the host interface through an internal bus; the data acquisition module includes a DO signal interface and an A / D signal interface. The DO signal interface and the A / D signal interface are connected to the device under test through the control line; the valve drive module and the conduction and insulation test module are connected to the device under test through the control line.

[0013] Further, the DO signal interface of the data acquisition module includes a remote shutdown signal interface, and the remote shutdown signal interface is connected to the device under test through the control line.

[0014] Further, the current acquisition frequency of the data acquisition module is greater than or equal to 10 kHz.

[0015] Further, the local test unit is wirelessly connected to the remote monitoring unit through a 4G wireless communication module.

[0016] Further, the local test unit further includes an HMI local monitoring display screen, and the HMI local monitoring display screen is connected to the CPCI measurement and control main chassis through an HDMI cable.

[0017] Even further, the control line includes a test wire and a signal wire.

[0018] Further, the valve drive module includes a DO signal interface, and the DO signal interface is connected to the device under test through the control line.

[0019] Furthermore, the conduction insulation test module includes a DO signal interface, and the DO signal interface is connected to the object under test through the control line.

[0020] A ultra-high pressure water / gas test system includes an information receiving device. The system further includes the unattended ultra-high pressure water / gas test equipment as described above, and the information receiving device is wirelessly connected to the ultra-high pressure water / gas test equipment.

[0021] Furthermore, the information receiving device includes a mobile phone, a telephone and a fax machine.

[0022] Compared with the prior art, the beneficial effects of the present invention include:

[0023] 1. The present invention integrates ultra-high pressure water test and ultra-high pressure gas test. The equipment supports conduction, insulation, solenoid valve characteristics and pressure signal tests, covering the full process detection requirements, with high precision and fast response. On the basis of the highly integrated local test unit, a remote monitoring unit is also set up, and local test data can be obtained in real time through wireless connection, and test instructions can also be issued in real time, facilitating the ultra-high pressure water / gas test and improving the test efficiency.

[0024] 2. The present invention can perform real-time shutdown operation on the object under test through the remote shutdown signal interface. This setting enables the detection equipment to reduce manual inspection and also improves the safety of the test.

[0025] 3. The present invention integrates data acquisition and emergency shutdown into the same module, making the shutdown more timely, improving the availability and stability of the equipment, and enhancing the safety.

[0026] 4. The solenoid valve current acquisition frequency of the present invention is ≥10kHz, which is high-speed acquisition with high detection accuracy. The transient characteristic curve can be generated through the acquired solenoid valve current, accurately judging the action performance, and further judging whether the solenoid valve is qualified under ultra-high pressure and normal conditions. Description of the Drawings

[0027] Figure 1 It is the system structure diagram of the present invention;

[0028] Figure 2 It is the current change curve of the solenoid valve action characteristic of the present invention;

[0029] 1 - Local test unit, 2 - Remote monitoring unit, 3 - CPCI measurement and control main chassis, 4 - HMI local monitoring display screen, 5 - MQTT gateway, 6 - Object under test, 7 - Control line, 31 - Host interface, 32 - Valve drive module, 33 - Data acquisition module, 34 - Conduction insulation test module, 331 - Remote shutdown signal interface. Detailed Embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1

[0032] A ultra-high pressure water / gas test equipment, as Figure 1 described, this equipment includes a local test unit 1, a remote monitoring unit 2 and a control line 7. Among them, the local test unit 1 includes a CPCI measurement and control mainframe box 3 and a device under test 6. The CPCI measurement and control mainframe box 3 transmits data to the remote monitoring unit 2 through wireless connection. The device under test 6 is connected to the CPCI measurement and control mainframe box 3 through the control line 7;

[0033] The CPCI measurement and control mainframe box 3 includes a host interface 31, a valve drive module 32, a data acquisition module 33 and a conduction and insulation test module 34. The valve drive module 32, the data acquisition module 33 and the conduction and insulation test module 34 are connected to the host interface 31 through an internal bus; the data acquisition module 33 includes a DO signal interface and an A / D signal interface. The DO signal interface and the A / D signal interface are connected to the device under test 6 through the control line 7; the valve drive module 32 and the conduction and insulation test module 34 are connected to the device under test 6 through the control line 7.

[0034] In this embodiment, the CPCI measurement and control mainframe box 3 adopts a standard CPCI bus architecture, featuring high reliability and high scalability. The host interface 31 adopts a standard CPCI interface, supporting the hot plug function, which is convenient for system maintenance and upgrade. The host interface 31 is built-in with a high-performance processor, running a real-time operating system, responsible for the control and data processing of the entire system.

[0035] The valve drive module 32, the data acquisition module 33 and the conduction and insulation test module 34 are integrated on three data acquisition cards. In this embodiment, the data acquisition cards used are: PCIe-4065-NI data acquisition card, PXIe-4310-NI data acquisition card and PXIe-4310-NI data acquisition card. These three acquisition cards are all inserted into the expansion slots of the CPCI measurement and control mainframe box 3 and are connected to the host interface 31 through an internal bus. Among these three acquisition cards, a digital multimeter is also integrated, which can perform the functions of a digital multimeter.

[0036] The valve drive module 32 includes a multi-channel DO signal output interface for controlling the on / off states of 24 valves on the object under test 6. The valve drive module 32 integrates a power amplification circuit inside, which can provide sufficient driving ability to ensure the reliable operation of the valves. The valve drive module 32 also has overcurrent protection and short-circuit protection functions, improving the safety and reliability of the system.

[0037] The data acquisition module 33 includes a DO signal interface and an A / D signal interface. The DO signal interface is used to output control signals to control the working states of various devices on the object under test 6. The A / D signal interface is used to collect signals from various sensors on the object under test 6, including pressure sensors, temperature sensors, flow sensors, etc. The data acquisition module 33 integrates a high-precision A / D converter inside, which can achieve high-precision data acquisition. The current acquisition frequency of the data acquisition module 33 is greater than or equal to 10 kHz. This high-speed acquisition ability enables the system to capture transient changes during the test, providing more detailed and accurate information for the analysis of test data.

[0038] The A / D converter of the data acquisition module 33 adopts a 16-bit resolution, which can achieve high-precision data acquisition. The input range of the A / D converter can be set by software to adapt to the output signal ranges of different types of sensors, improving the adaptability and flexibility of the system.

[0039] The conduction and insulation test module 34 includes a DO signal interface for controlling the conduction and insulation test equipment on the object under test 6. The conduction and insulation test module 34 integrates a dedicated test circuit inside, which can achieve the test of the conductivity and insulation of the object under test 6.

[0040] The control line 7 includes test wires and signal wires. The test wires are used to connect the conduction and insulation test module 34 and the object under test 6, and the signal wires are used to connect the valve drive module 32, the data acquisition module 33 and the object under test 6. The control line 7 adopts a shielded cable, effectively reducing the influence of external electromagnetic interference on the signals and improving the anti-interference ability of the system.

[0041] The object under test 6 is the equipment that needs to conduct ultra-high pressure water / gas test, and can be various types of pressure vessels, pipeline systems, valves, etc. Various sensors are installed on the object under test 6 to monitor various parameters during the test, such as pressure, temperature, flow, etc. Various valves are also installed on the object under test 6 to control the fluid flow during the test.

[0042] The remote monitoring unit 2 is an independent device, which can be a computer, a tablet computer or a smart phone. The remote monitoring unit 2 transmits data to the CPCI measurement and control mainframe box 3 through a wireless connection to achieve remote monitoring of the test process. A dedicated monitoring software runs on the remote monitoring unit 2, which can display various parameters during the test process in real time and can remotely control the test process.

[0043] The local test unit 1 also includes an HMI local monitoring display screen 4, and the HMI local monitoring display screen 4 is connected to the CPCI measurement and control mainframe box 3 through an HDMI cable. The HMI local monitoring display screen 4 can obtain the data of the DUT 6 collected by the CPCI measurement and control mainframe box 3 in real time through the HDMI cable. A dedicated monitoring software runs on the HMI local monitoring display screen 4, and this software has the same functions and interface as the monitoring software on the remote monitoring unit 2, which can display various parameters during the test process in real time, including pressure, temperature, flow rate, etc., as well as the results of conduction and insulation tests. These parameters are visually displayed in the form of charts, curves, etc., which is convenient for on-site operators to view and analyze.

[0044] The local test unit 1 is connected to the MQTT gateway 5 through a network cable based on the network cable Modbus protocol. The MQTT gateway 5 is built-in with a 4G wireless communication module and is connected to the remote monitoring unit 2 through the 4G wireless communication module for information interaction.

[0045] The working process of the ultra-high pressure water / gas test equipment in this embodiment is as follows:

[0046] First, the operator sets test parameters through the CPCI measurement and control mainframe box 3 or the remote monitoring unit 2 in the local test unit 1, including test pressure, test time, data acquisition frequency, etc. These parameters are transmitted to the host interface 31 of the CPCI measurement and control mainframe box 3 through a wireless connection.

[0047] Then, according to the set parameters, the host interface 31 controls the valve drive module 32 to output corresponding control signals, controls the valves on the DUT 6 through the control line 7, adjusts the flow of the fluid, and makes the pressure in the DUT 6 reach the set value.

[0048] Next, the data acquisition module 33 collects the signals of various sensors on the DUT 6 through the control line 7, including the signals of pressure sensors, temperature sensors, flow sensors, etc. These signals are converted into digital signals by the A / D converter of the data acquisition module 33 and then transmitted to the host interface 31 through the internal bus.

[0049] The host interface 31 processes and analyzes the collected data, and then transmits the processed data to the HMI local monitoring display 4 and the remote monitoring unit 2 through an HDMI cable and a wireless connection respectively for the operator to view and analyze.

[0050] Meanwhile, the continuity and insulation test module 34 tests the continuity and insulation of the object under test 6 through the control line 7. The test results are transmitted to the host interface 31 through the internal bus and then to the remote monitoring unit 2 through the wireless connection.

[0051] During the whole test process, the operator can monitor the test status in real time through the HMI local monitoring display 4 and the remote monitoring unit 2, including the changes of parameters such as pressure, temperature, and flow rate, as well as the results of the continuity and insulation tests. If any abnormal situation is found, the operator can issue a control command through the HMI local monitoring display 4 or the remote monitoring unit 2 to control the CPCI measurement and control mainframe box 3 to stop the test and ensure the safe progress of the test.

[0052] After the test is completed, the host interface 31 saves the data of the whole test process in the internal memory and transmits it to the remote monitoring unit 2 through the wireless connection for the operator to perform subsequent analysis and processing.

[0053] In this embodiment, the valve driving module 32 and the data acquisition module can also be used to test the action characteristics of the solenoid valve. The specific process includes:

[0054] The operator sets the test parameters through the CPCI measurement and control mainframe box 3 in the local test unit 1 or the remote monitoring unit 2, and the parameters are transmitted to the host interface 31 of the CPCI measurement and control mainframe box 3 through the wireless connection.

[0055] According to the set parameters, the host interface 31 controls the valve driving module 32 to output corresponding control signals, controls the solenoid valve on the object under test 6 through the control line 7, and adopts single-valve control. The tested solenoid valve continuously performs opening and closing actions. It is required that the action time width of each valve is 80 ms, the time interval between two actions is 40 ms, and the time interval between the actions of two adjacent solenoid valves is 200 ms.

[0056] The data acquisition module 33 collects the transient current of the solenoid valve on the object under test 6 through the control line 7 and generates Figure 2 the characteristic curve as shown. When testing and collecting, it is required to record the start time t 1 、start current I 1 、release time t 2 、release current I 2 、steady-state current I, and calculate the ratio of the start current to the steady-state current (I 1 / I), the ratio of the release current to the steady-state current ((I 2 / I). The operating characteristics of the solenoid valve can be reflected by the relationship between the current value and time of the solenoid valve coil of the space propulsion system as shown in Figure 2 the figure.

[0057] Embodiment 2

[0058] Based on Embodiment 1, in this embodiment, the DO signal interface of the data acquisition module 33 includes a remote shutdown signal interface 331, and the remote shutdown signal interface 331 is connected to the object under test 6 through a control line 7.

[0059] The remote shutdown signal interface 331 is a dedicated DO signal interface, which is used to quickly close all valves on the object under test 6 in case of emergency and stop the test. The remote shutdown signal interface 331 is directly connected to the emergency shutdown system on the object under test 6. When receiving the shutdown signal, the emergency shutdown system will immediately close all valves and release the pressure inside the object under test 6 to ensure the safety of the test.

[0060] The remote shutdown signal interface 331 adopts a redundant design, including two independent signal channels, and each signal channel can independently control the emergency shutdown system on the object under test 6. This redundant design improves the reliability of the system. Even if one signal channel fails, the other signal channel can still work normally to ensure the reliable implementation of the emergency shutdown function.

[0061] The remote shutdown signal interface 331 also has a self-diagnosis function, which can monitor the status of the signal channel in real time. If a signal channel failure is detected, it will immediately report to the host interface 31, and the host interface 31 will transmit the fault information to the remote monitoring unit 2 through a wireless connection to remind the operator to handle it in time.

[0062] In addition, the data acquisition module 33 also has an automatic emergency shutdown function. When parameters such as pressure and temperature collected by the data acquisition module 33 through the A / D signal interface exceed the preset safety threshold, the emergency shutdown function will be automatically triggered, and a shutdown signal will be output through the remote shutdown signal interface 331 to control the emergency shutdown system on the object under test 6, close all valves, and stop the test to ensure the safety of the test.

[0063] Embodiment 3

[0064] Based on the above Embodiments 1 and 2, this embodiment proposes an ultra-high pressure water / gas test system, which includes an information receiving device. The system also includes an unattended ultra-high pressure water / gas test device as described in any one of Embodiments 1 and 2, and the information receiving device is wirelessly communicatively connected to the ultra-high pressure water / gas test device.

[0065] The information receiving device can be communication devices such as mobile phones, telephones, and fax machines, which are used to receive information sent by the ultra-high pressure water / gas test equipment, including test status information, alarm information, etc. The information receiving device is connected to the ultra-high pressure water / gas test equipment through wireless communication to achieve real-time transmission of information.

[0066] When the mobile phone is used as the information receiving device, a dedicated monitoring APP can be installed. The APP is used to receive and display the information sent by the ultra-high pressure water / gas test equipment. The APP has a user-friendly interface and can visually display the test data in the form of charts, curves, etc., which is convenient for users to view and analyze. The APP also has an alarm prompt function. When an alarm information is received, it will emit a sound alarm and display a prominent alarm message to remind the user to handle it in time.

[0067] When the telephone is used as the information receiving device, the ultra-high pressure water / gas test equipment can make a call to a specified telephone number through a voice dialing system and play pre-recorded voice messages such as "The test has been completed", "An abnormality occurred in the test, please handle it in time", etc., to notify the user of the test status and results.

[0068] When the fax machine is used as the information receiving device, the ultra-high pressure water / gas test equipment can send a fax to a specified fax number through a fax module. The fax content can be a test report, a description of abnormal situations, etc., providing detailed test information for users to view and analyze.

[0069] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art in the technical field disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An ultra-high pressure water / gas test equipment, characterized in that: The device comprises a local test unit (1), a remote monitoring unit (2) and a control line (7), wherein the local test unit (1) comprises a CPCI measurement and control mainframe box (3) and a measured object (6), the CPCI measurement and control mainframe box (3) and the remote monitoring unit (2) are connected via a wireless connection for data transmission, and the measured object (6) is connected to the CPCI measurement and control mainframe box (3) via a control line (7); The CPCI measurement and control main box (3) comprises a mainframe interface (31), a valve drive module (32), a data acquisition module (33) and a continuity and insulation test module (34); the valve drive module (32), the data acquisition module (33) and the continuity and insulation test module (34) are connected to the mainframe interface (31) via an internal bus; the data acquisition module (33) comprises a DO signal interface and an A / D signal interface; the DO signal interface and the A / D signal interface are connected to the measured object (6) via the control line (7); the valve drive module (32) and the continuity and insulation test module (34) are connected to the measured object (6) via the control line (7).

2. The ultra-high pressure water / gas test equipment according to claim 1, characterized in that: The DO signal interface of the data acquisition module (33) includes a remote shutdown signal interface (331), and the remote shutdown signal interface (331) is connected to the measured object (6) via the control line (7).

3. The ultra-high pressure water / gas test equipment according to claim 1, characterized in that: The current acquisition frequency of the data acquisition module (33) is greater than or equal to 10 kHz.

4. The ultra-high pressure water / gas test equipment according to claim 1, characterized in that: The local testing unit (1) is wirelessly connected to the remote monitoring unit (2) via a 4G wireless communication module.

5. The ultra-high pressure water / gas test equipment according to claim 1, characterized in that: The local test unit (1) also includes an HMI local monitoring display screen (4), and the HMI local monitoring display screen (4) is connected to the CPCI measurement and control main box (3) via an HDMI cable.

6. The ultra-high pressure water / gas test equipment according to claim 5, characterized in that: The control line (7) comprises a test wire and a signal wire.

7. The ultra-high pressure water / gas test equipment according to claim 1, characterized in that: The valve driving module (32) comprises a DO signal interface, and the DO signal interface is connected to the measured object (6) via the control line (7).

8. The ultra-high pressure water / gas test equipment according to claim 1, characterized in that: The conduction insulation test module (34) comprises a DO signal interface, and the DO signal interface is connected to the object to be tested (6) via the control line (7).

9. An ultra-high pressure water / gas test system, comprising an information receiving device, characterized in that: The system also includes an unattended ultra-high pressure water / gas test equipment as described in any one of claims 1 to 8, and the information receiving device is connected to the ultra-high pressure water / gas test equipment via wireless communication.

10. An ultra-high pressure water / gas test system according to claim 9, characterized in that: The information receiving device includes a mobile phone, a telephone and a fax machine.

Images