CN111693231A - Liquid rocket engine valve test measurement and control system - Google Patents
Liquid rocket engine valve test measurement and control system Download PDFInfo
- Publication number
- CN111693231A CN111693231A CN202010588637.2A CN202010588637A CN111693231A CN 111693231 A CN111693231 A CN 111693231A CN 202010588637 A CN202010588637 A CN 202010588637A CN 111693231 A CN111693231 A CN 111693231A
- Authority
- CN
- China
- Prior art keywords
- pressure
- module
- valve
- test
- subsystem
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/224—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for valves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The application provides a liquid rocket engine valve test measurement and control system, which comprises a high-low temperature environment subsystem, an explosion-proof box system, a helium gas detection subsystem, a data acquisition subsystem and an industrial personal computer; the high-low temperature environment subsystem is used for providing temperature and humidity environments required by high-temperature, normal-temperature and low-temperature tests of the gas circuit for the tested valve; the explosion-proof box system is used for providing a test environment for completing a sealing test and a service life test of the tested valve under a normal temperature condition; the helium detection subsystem is used for providing a tightness test environment for the tested valve meeting the primary tightness requirement; the data acquisition subsystem is used for acquiring pressure, temperature, humidity, leakage and current parameters; the industrial personal computer is used for dynamically adjusting parameters required by the test provided by the high-low temperature environment subsystem, the explosion-proof box system and the helium detection subsystem for the tested valve according to the parameters acquired by the data acquisition subsystem. The application can improve the safety, stability and accuracy of the test, thereby saving time and labor cost.
Description
Technical Field
The application belongs to the technical field of measurement and control, and particularly relates to a liquid rocket engine valve test measurement and control system.
Background
At present, the valve test of the domestic liquid rocket engine is an important process in the production, detection and maintenance processes of the valve, and the test result can visually reflect the relevant performance indexes of the valve. At present, the test process of the liquid rocket engine valve is mostly purely manual operation, the high-temperature environment and the low-temperature environment required by the test are simulated by respectively soaking high-temperature media and low-temperature media, the measuring equipment is a mechanical instrument, and the safety, the control precision, the measuring precision and the accuracy of the test are greatly influenced by the experience of operators. In addition, in the test process, the tested product can be damaged and certain personal safety hidden danger can be caused due to improper operation of personnel.
Disclosure of Invention
In order to overcome the problems in the related art at least to a certain extent, the application provides a valve test measurement and control system of a liquid rocket engine.
According to the embodiment of the application, the application provides a liquid rocket engine valve test measurement and control system which comprises a high-low temperature environment subsystem, an explosion-proof box system, a helium gas detection subsystem, a data acquisition subsystem and an industrial personal computer;
the high-low temperature environment subsystem is used for providing temperature and humidity environments required by high-temperature, normal-temperature and low-temperature tests of the gas circuit for the tested valve; the explosion-proof box system is used for providing a test environment for completing a sealing test and a service life test of a tested valve under a normal temperature condition; the helium detection subsystem is used for providing a tightness test environment for a tested valve meeting the primary tightness requirement;
the data acquisition subsystem is used for acquiring pressure, temperature, humidity, leakage and current parameters; the industrial personal computer is used for dynamically adjusting parameters required by the test provided by the high-low temperature environment subsystem, the explosion-proof box system and the helium detection subsystem for the tested valve according to the parameters acquired by the data acquisition subsystem.
The liquid rocket engine valve test measurement and control system further comprises a stop valve and a pressure regulating valve, the industrial personal computer is connected with the external valve process test system through the stop valve and the pressure regulating valve, the stop valve is used for switching on and off a pipeline where the stop valve is located, and the pressure regulating valve is used for regulating the pressure of the pipeline where the pressure regulating valve is located.
In the liquid rocket engine valve test measurement and control system, the high-low temperature environment subsystem comprises a high-low temperature environment box, and the high-low temperature environment box is used for providing a temperature and humidity environment required by a test for a tested valve;
the explosion-proof box system comprises an explosion-proof box, a pressure sensor and a pressure sensor, wherein the explosion-proof box is used for providing pressure required by a tightness test for a tested valve;
the helium detection subsystem comprises a helium leakage detection box, and the helium leakage detection box provides a tightness test environment for the tested valve by using helium as a medium.
Furthermore, the data acquisition subsystem comprises a data acquisition platform, and a temperature transmitter, a humidity transmitter, a pressure transmitter, a flow transmitter, a helium detector and a current sensor which are connected with the data acquisition platform;
the temperature transmitter is used for detecting the temperature of the high and low temperature environment box, and the humidity transmitter is used for detecting the humidity in the high and low temperature environment box;
the pressure transmitter is used for detecting the pressure of an air source, the pipeline pressure and the pressure at each interface of the tested valve; the flow transmitter is used for detecting the leakage at each interface of the tested valve; the helium detector is used for detecting the helium leakage amount at each interface of the tested valve.
Furthermore, the data acquisition subsystem further comprises a current sensor, and the current sensor is used for detecting a current signal of the tested electrically controlled valve.
In the liquid rocket engine valve test measurement and control system, a man-machine interaction module is arranged in the industrial personal computer; the human-computer interaction module is used for realizing a human-computer interaction function;
the human-computer interaction module comprises a real-time data reading and displaying module, a parameter setting module, a real-time and historical curve displaying module, an operation recording, storing and inquiring module, a data storing module and a report module;
the real-time data reading and displaying module is used for reading and displaying data of each monitoring point in the test measurement and control system and the state of the equipment in real time;
the parameter setting module is used for setting and operating equipment parameters and alarm parameters;
the real-time and historical curve display module displays the required monitoring data in a real-time or historical curve mode;
the operation recording, storing and inquiring module is used for recording, storing and inquiring related operations of operators after the operation of LabVIEW software and in the test process;
the data storage module is used for storing data; the report module is used for displaying the historical data in a form of a table.
Furthermore, a control module is arranged in the industrial personal computer and used for realizing the functions of editing, modifying and executing programs;
the control module comprises a main control module, an initialization sub-module, a communication driving sub-module, a data receiving sub-module, a data output sub-module, a pressure step change control sub-module, a tightness control sub-module, a switching frequency control sub-module, an alarm sub-module and a linkage sub-module; the main control module is responsible for the logic judgment of the program and the calling and execution of each submodule;
the initialization submodule, the communication driving submodule, the data receiving submodule, the data output submodule, the pressure step change control submodule, the tightness control submodule, the switching frequency control submodule, the alarm submodule and the linkage submodule are composed of different message events and are mutually independent, the information is uniformly fed back to the main control module by the submodules, and the information is uniformly called and controlled after being processed by the main control module.
Furthermore, the control process of the pressure step change control submodule is as follows:
setting a pressure step change value, step change times and single step holding time;
taking the current pressure as the input of a PID algorithm, controlling the action of a pressure regulating valve through the PID algorithm, controlling the pressure regulating valve to stop acting when the pressure value of a pipeline where the pressure regulating valve is located reaches a pressure step change value, and starting pressure maintaining timing;
and when the pressure maintaining timing is equal to the single step maintaining time, adding one to the actual step change frequency, starting the action of the pressure regulating valve again, repeating the cycle until the actual step change frequency is consistent with the set step change frequency, closing the pressure regulating valve, and releasing the pressure.
Further, the control process of the sealing control sub-module is as follows:
setting target pressure and pressure maintaining time;
taking the difference value between the target pressure and the current pressure as the output of a PID algorithm, regulating the opening of the pressure regulating valve through the PID algorithm, controlling to close the pressure regulating valve until the error between the current pressure and the target pressure reaches a preset error range, and starting pressure maintaining timing;
starting data recording, and recording pressure change and leakage amount of a test required position;
and when the pressure maintaining timing is equal to the preset pressure maintaining time, controlling to close the pressure regulating valve to release the pressure.
Furthermore, the control process of the switching frequency control submodule is as follows:
setting the cycle times and the time interval between two adjacent opening and closing of the tested valve;
and controlling the tested valve to start opening and closing operation, wherein the opening and closing operation is carried out once, the two times of opening directly need to wait for a preset time interval, and the actual cycle count is increased by one every time the opening and closing are carried out once until the actual cycle is equal to the set cycle.
According to the above embodiments of the present application, at least the following advantages are obtained: the liquid rocket engine valve test measurement and control system provided by the application provides a test environment for a tested valve by arranging a high-low temperature environment subsystem, an explosion-proof box system, a helium gas detection subsystem, a data acquisition subsystem and an industrial personal computer, acquires parameters in a test process by using the data acquisition subsystem, adjusts the test parameters of the system by using the industrial personal computer according to the acquired parameters, and sets a modularized program in the industrial personal computer, so that each module can be used independently or jointly; compared with the prior art, the method and the device can greatly improve the safety, stability and accuracy of the test, thereby saving time and labor cost. In addition, the program running of the control module arranged in the industrial personal computer is stable, the readability, the maintainability and the integration degree are high, the safety and the standardization degree are high, and the high control precision and the measurement precision can be considered.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the scope of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification of the application, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
Fig. 1 is one of schematic structural diagrams of a valve test measurement and control system of a liquid rocket engine provided in an embodiment of the present application.
Fig. 2 is a second schematic structural diagram of a valve test measurement and control system of a liquid rocket engine provided in an embodiment of the present application.
Description of reference numerals:
1. a high and low temperature environment subsystem; 2. an explosion proof box system; 3. a helium gas detection subsystem;
4. a data acquisition subsystem; 41. a data acquisition platform; 42. a temperature transmitter; 43. a humidity transmitter; 44. a pressure transmitter; 45. a flow transmitter; 46. a helium gas detector; 47. a current sensor;
5. an industrial personal computer; 6. a stop valve; 7. a pressure regulating valve.
10. Valve test process systems.
Detailed Description
For the purpose of promoting a clear understanding of the objects, aspects and advantages of the embodiments of the present application, reference will now be made to the accompanying drawings and detailed description, wherein like reference numerals refer to like elements throughout.
The illustrative embodiments and descriptions of the present application are provided to explain the present application and not to limit the present application. Additionally, the same or similar numbered elements/components used in the drawings and the embodiments are used to represent the same or similar parts.
As used herein, "first," "second," …, etc., are not specifically intended to mean in a sequential or chronological order, nor are they intended to limit the application, but merely to distinguish between elements or operations described in the same technical language.
With respect to directional terminology used herein, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be illustrative and is not intended to be limiting of the present teachings.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
As used herein, "and/or" includes any and all combinations of the described items.
References to "plurality" herein include "two" and "more than two"; reference to "multiple sets" herein includes "two sets" and "more than two sets".
As used herein, the terms "substantially", "about" and the like are used to modify any slight variation in quantity or error that does not alter the nature of the variation. In general, the range of slight variations or errors that such terms modify may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the aforementioned values can be adjusted according to actual needs, and are not limited thereto.
Certain words used to describe the present application are discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the present application.
LabVIEW software is used as human-computer interaction and data acquisition control software, integrates various standard communication protocols and library functions, is a graphical language (G language) in a programming language, and is based on a data flow principle in program execution. Compared with other high-level programming languages, the G language is easier to understand and program, better accords with thinking habits of engineering personnel, and can realize functions of real-time data display, parameter setting, data storage, real-time/historical curve display, report forms, safety alarm linkage and the like.
The liquid rocket engine valve test measurement and control system provided by the application is realized based on LabVIEW software. As shown in figure 1, the liquid rocket engine valve test measurement and control system provided by the application comprises a high-low temperature environment subsystem 1, an explosion-proof box system 2, a helium detection subsystem 3, a data acquisition subsystem 4 and an industrial personal computer 5.
The high-low temperature environment subsystem 1 is used for providing temperature and humidity environments required by high-temperature, normal-temperature and low-temperature tests of the gas circuit for the tested valve. The explosion-proof box system 2 is used for providing a test environment for completing a sealing test and a service life test of a tested valve under a normal temperature condition. The helium detection subsystem 3 utilizes helium as a medium for providing a tightness test environment for a tested valve meeting the primary tightness requirement. The data acquisition subsystem 4 is used for acquiring parameters such as pressure, temperature, humidity, leakage amount and current in the valve test measurement and control system. The industrial personal computer 5 is used for dynamically adjusting parameters required by the test provided by the high-low temperature environment subsystem 1, the explosion-proof box system 2 and the helium detection subsystem 3 for the tested valve according to the parameters acquired by the data acquisition subsystem 4.
In this embodiment, this application liquid rocket engine valve test system of observing and controling still includes stop valve 6 and air-vent valve 7, and industrial computer 5 passes through stop valve 6 and air-vent valve 7 to be connected with outside valve technology test system 10, and industrial computer 5 passes through the break-make of 6 pipeline at stop valve place of stop valve 6 control, and industrial computer 5 adjusts the pressure of the pipeline at 7 place of air-vent valve through air-vent valve 7.
In a specific embodiment, the high-low temperature environment subsystem 1 includes a high-low temperature environment box, and the high-low temperature environment box has an explosion-proof function, and is used for providing a temperature and humidity environment required by a test for a tested valve, so as to perform gas circuit high-temperature, normal-temperature and low-temperature tests on the tested valve.
The explosion-proof tank system 2 comprises an explosion-proof tank having an explosion-proof function for providing a pressure required for a tightness test for a valve under test.
The helium detection subsystem 3 comprises a helium leakage detection box, and helium is used as a medium in the helium leakage detection box so as to perform a tightness test on a tested valve with high tightness requirement.
In a specific embodiment, as shown in fig. 2, the data collection subsystem 4 includes a data collection platform 41, and a temperature transmitter 42, a humidity transmitter 43, a pressure transmitter 44, a flow transmitter 45, a helium detector 46, a current sensor 47, etc. connected to the data collection platform 41. Wherein the temperature transmitter 42 is used for detecting the temperature in the high and low temperature environment box. The humidity transmitter 43 is used to detect the humidity in the high and low temperature environmental chamber. The pressure transmitter 44 is used for detecting the pressure of the air source provided by the valve test process system, the pipeline pressure, the pressure at each interface of the tested valve and the like. The flow transmitter 45 is used for detecting the leakage amount at each interface of the tested valve when the tested valve is subjected to a tightness test. The helium detector 46 is used for detecting the helium leakage at each interface of the tested valve when the tested valve meeting the primary sealing requirement is subjected to a sealing test. The current sensor 47 is used to detect a current signal of the electrically controlled valve under test.
Specifically, the data acquisition platform 41 is a Compact RIO acquisition platform of the american NI company, and has the advantages of fast response speed, high sampling frequency, stable operation, strong anti-interference capability, high reliability, small volume, low energy consumption, high maintainability, and the like.
In a specific embodiment, the industrial personal computer 5 is based on a LabVIEW software platform and is provided with a plurality of modularized control programs, each modularized control program can be operated independently or jointly, the operation is stable, the readability, maintainability and integration degree of the program are high, the safety and standardization degree are high, the high control precision and the high measurement precision are both considered, and meanwhile, the time cost and the labor cost are saved.
The industrial personal computer 5 is internally provided with a human-computer interaction module and a control module. The human-computer interaction module is used for realizing a human-computer interaction function. The control module is used for realizing the functions of editing, modifying and executing the program.
Specifically, the human-computer interaction module comprises a real-time data reading and displaying module, a parameter setting module, a real-time and historical curve displaying module, an operation recording, storing and inquiring module, a data storing module, a report module and the like.
The real-time data reading and displaying module is used for reading and displaying the data of each monitoring point in the test measurement and control system and the state of the equipment in real time so as to observe the current state of the whole test measurement and control system.
The parameter setting module is used for setting and operating equipment parameters, alarm parameters and the like.
During or after the test, the real-time and historical curve display module displays the required monitoring data in a real-time or historical curve mode, so that the real-time and historical curve display module is convenient for guiding operation during the test, or is used for comparing and analyzing the data after the test is finished.
The operation recording, storing and inquiring module can record, store and inquire the relevant operation of operators after the operation of the LabVIEW software and in the test process, and can be used for analyzing reasons particularly when the test has problems.
The data storage module is used for storing data, the storage format is a TDMS file, the format file can be stored at a high speed, and the format file can be seamlessly interacted with various data mining analysis software, so that designers and technologists can conveniently analyze and research the test data.
The report module is used for displaying the historical data in a form of a table.
The control module comprises a main control module, an initialization sub-module, a communication driving sub-module, a data receiving sub-module, a data output sub-module, a pressure step change control sub-module, a tightness control sub-module, a switching frequency control sub-module, an alarm sub-module and a linkage sub-module. The main control module is responsible for the logic judgment of the program and the calling and execution of each submodule.
Each submodule consists of different message events, and the submodules cannot be directly called with each other, and information needs to be uniformly fed back to the main control module. After being processed by the main control module, the sub-modules are called and controlled in a unified mode, so that the operation efficiency, the reliability and the accuracy are improved, and the risk of mutual interference among the sub-modules is reduced.
Specifically, when the initialization submodule operates, the parameters are read first, and then parameters such as equipment and set values are initialized.
The communication driving sub-module is used for data exchange between the industrial personal computer 5 and the data acquisition platform 41 and between the industrial personal computer 5 and the high and low temperature environment boxes, and an ethernet communication protocol and an OPC (OLE for Process Control) communication protocol are respectively adopted between the industrial personal computer 5 and the data acquisition platform 41 and between the industrial personal computer and the high and low temperature environment boxes.
The data receiving submodule converts the received standard signal processed by the sensor, the transmitter or the data acquisition platform 41 into a data stream signal so as to facilitate the human-computer interaction reading and displaying.
The data output sub-module converts the data stream signal transmitted by the man-machine interaction module into a standard signal through the data acquisition platform 41 and then transmits the standard signal to corresponding equipment.
The control process of the pressure step change control submodule comprises the following steps:
setting a pressure step change value, step change times and single step holding time;
the current pressure is used as the input of a PID algorithm, the pressure regulating valve 7 is controlled to act through the PID algorithm, when the pressure value of a pipeline where the pressure regulating valve 7 is located reaches a pressure step change value, the pressure regulating valve 7 is controlled to stop acting, and the pressure maintaining timing is started;
and when the pressure maintaining timing is equal to the single step maintaining time, adding one to the actual step change frequency, starting the action of the pressure regulating valve 7 again, repeating the cycle until the actual step change frequency is consistent with the set step change frequency, closing the pressure regulating valve 7, releasing the pressure, and finishing the program execution of the pressure step change control submodule.
The control process of the sealing control submodule is as follows:
setting target pressure and pressure maintaining time;
taking the difference value between the target pressure and the current pressure as the output of a PID algorithm, and regulating the opening degree of the pressure regulating valve 7 through the PID algorithm so as to regulate the current pressure, controlling to close the pressure regulating valve 7 until the error between the current pressure and the target pressure reaches a preset error range, and starting pressure maintaining timing;
starting data recording, and recording the pressure change and the leakage amount of other test required positions;
and when the pressure maintaining timing is equal to the preset pressure maintaining time, controlling to close the pressure regulating valve 7, releasing pressure, stopping data recording, and finishing the program execution of the sealing control submodule.
The control process of the switching frequency control submodule is as follows:
setting the cycle times and the time interval between two adjacent opening and closing of the tested valve;
and controlling the tested valve to start opening and closing operation, wherein the opening and closing operation is performed once, the two times of opening directly need to wait for a preset time interval, the actual cycle count is increased by one every time the opening and closing operation is completed, and when the actual cycle is equal to the set cycle, the program execution of the switching time control submodule is completed.
The alarm submodule sets alarm parameters and corresponding control actions from the perspective of actual conditions of equipment or test safety.
For example, a secondary temperature alarm value is set at a certain position of the test measurement and control system. When the actual temperature at the position exceeds the first-stage temperature alarm value, the human-computer interaction module displays corresponding prompt contents to prompt a tester; and when the actual temperature at the position exceeds the second-stage temperature alarm value, the test measurement and control system automatically and emergently stops.
For another example, a secondary pressure alarm value is set at a certain position of the test measurement and control system. When the actual temperature at the position exceeds the first-stage pressure alarm value, the human-computer interaction module displays corresponding prompt contents to prompt a tester; and when the actual temperature at the position exceeds the second-stage pressure alarm value, the test measurement and control system automatically and emergently stops.
For the safety of the equipment or the test, some states in the test process need to be interlocked, namely, when a certain state is executed, other states are forbidden states. Such as the heating and cooling functions of the high and low temperature environmental chamber. The interlocking submodule is used for interlocking the heating function and the refrigerating function of the high-low temperature environment box.
The differences of the gas circuit high-temperature test, the normal-temperature test and the low-temperature test of the tested valve are as follows: the tested valves are in different temperature environments. The following test procedure is described by taking the high temperature test as an example:
the tested valve is fixed in a high-temperature and low-temperature environment box, and a pipeline and a corresponding temperature transmitter 42, a humidity transmitter 43, a pressure transmitter 44 and a flow transmitter 45 are connected;
setting temperature and humidity parameters of the high and low temperature environment box, wherein the temperature and humidity parameters comprise temperature, humidity, holding time and the like; and starting the high-low temperature environment subsystem 1;
when the temperature of the high-low temperature environment box reaches the set temperature and humidity, the work of a tightness control submodule or a pressure step change control submodule is carried out according to the requirement of a test task, the parameter setting is carried out, and a control program is started;
and after the control program is executed, checking the tested valve and carrying out subsequent tests.
When the liquid rocket engine valve test measurement and control system provided by the application is used for testing the service life of a tested valve, the valve switching times and the interval time are set according to the test task requirements, the switching time control submodule is started to perform the test, the program execution of the switching time control submodule is completed, and the performance of the valve is analyzed according to the detected and recorded data and the abrasion of the valve appearance and the components.
When the liquid rocket engine valve test measurement and control system provided by the application is used for testing the electrical property of the tested electrical control valve, the advantage of high collection frequency of a LabVIEW software system is utilized, the current signal which is transmitted by the current sensor 47 and flows through the tested electrical control valve is collected and stored, and the performance of the tested electrical control valve is analyzed on the basis of the data.
The program of the liquid rocket engine valve test measurement and control system provided by the application adopts a modular design, and the readability and maintainability are strong; the system is simple to operate and easy to learn and master; the safety and the standardization degree are high; the measurement and control precision and the accuracy are high; various different types of tests can be completed by flexibly combining the subsystems; thereby saving time and labor costs.
The foregoing is merely an illustrative embodiment of the present application, and any equivalent changes and modifications made by those skilled in the art without departing from the spirit and principles of the present application shall fall within the protection scope of the present application.
Claims (10)
1. A liquid rocket engine valve test measurement and control system is characterized by comprising a high-low temperature environment subsystem, an explosion-proof box system, a helium gas detection subsystem, a data acquisition subsystem and an industrial personal computer;
the high-low temperature environment subsystem is used for providing temperature and humidity environments required by high-temperature, normal-temperature and low-temperature tests of the gas circuit for the tested valve; the explosion-proof box system is used for providing a test environment for completing a sealing test and a service life test of a tested valve under a normal temperature condition; the helium detection subsystem is used for providing a tightness test environment for a tested valve meeting the primary tightness requirement;
the data acquisition subsystem is used for acquiring pressure, temperature, humidity, leakage and current parameters; the industrial personal computer is used for dynamically adjusting parameters required by the test provided by the high-low temperature environment subsystem, the explosion-proof box system and the helium detection subsystem for the tested valve according to the parameters acquired by the data acquisition subsystem.
2. The liquid rocket engine valve test measurement and control system of claim 1, further comprising a stop valve and a pressure regulating valve, wherein the industrial personal computer is connected with an external valve process test system through the stop valve and the pressure regulating valve, the stop valve is used for switching on and off a pipeline where the stop valve is located, and the pressure regulating valve is used for regulating the pressure of the pipeline where the pressure regulating valve is located.
3. The liquid rocket engine valve test measurement and control system according to claim 1 or 2, wherein the high-low temperature environment subsystem comprises a high-low temperature environment box, and the high-low temperature environment box is used for providing a temperature and humidity environment required by a test for a tested valve;
the explosion-proof box system comprises an explosion-proof box, a pressure sensor and a pressure sensor, wherein the explosion-proof box is used for providing pressure required by a tightness test for a tested valve;
the helium detection subsystem comprises a helium leakage detection box, and the helium leakage detection box provides a tightness test environment for the tested valve by using helium as a medium.
4. The liquid rocket engine valve test measurement and control system of claim 3, wherein the data acquisition subsystem comprises a data acquisition platform, and a temperature transmitter, a humidity transmitter, a pressure transmitter, a flow transmitter, a helium detector and a current sensor connected with the data acquisition platform;
the temperature transmitter is used for detecting the temperature of the high and low temperature environment box, and the humidity transmitter is used for detecting the humidity in the high and low temperature environment box;
the pressure transmitter is used for detecting the pressure of an air source, the pipeline pressure and the pressure at each interface of the tested valve; the flow transmitter is used for detecting the leakage at each interface of the tested valve; the helium detector is used for detecting the helium leakage amount at each interface of the tested valve.
5. The liquid rocket engine valve test measurement and control system of claim 4, wherein the data acquisition subsystem further comprises a current sensor for detecting a current signal of the tested electrically controlled valve.
6. The liquid rocket engine valve test measurement and control system according to claim 1 or 2, wherein a human-computer interaction module is arranged in the industrial personal computer; the human-computer interaction module is used for realizing a human-computer interaction function;
the human-computer interaction module comprises a real-time data reading and displaying module, a parameter setting module, a real-time and historical curve displaying module, an operation recording, storing and inquiring module, a data storing module and a report module;
the real-time data reading and displaying module is used for reading and displaying data of each monitoring point in the test measurement and control system and the state of the equipment in real time;
the parameter setting module is used for setting and operating equipment parameters and alarm parameters;
the real-time and historical curve display module displays the required monitoring data in a real-time or historical curve mode;
the operation recording, storing and inquiring module is used for recording, storing and inquiring related operations of operators after the operation of LabVIEW software and in the test process;
the data storage module is used for storing data; the report module is used for displaying the historical data in a form of a table.
7. The liquid rocket engine valve test measurement and control system according to claim 1 or 2, wherein a control module is arranged in the industrial personal computer, and the control module is used for realizing the functions of editing, modifying and executing programs;
the control module comprises a main control module, an initialization sub-module, a communication driving sub-module, a data receiving sub-module, a data output sub-module, a pressure step change control sub-module, a tightness control sub-module, a switching frequency control sub-module, an alarm sub-module and a linkage sub-module; the main control module is responsible for the logic judgment of the program and the calling and execution of each submodule;
the initialization submodule, the communication driving submodule, the data receiving submodule, the data output submodule, the pressure step change control submodule, the tightness control submodule, the switching frequency control submodule, the alarm submodule and the linkage submodule are composed of different message events and are mutually independent, the information is uniformly fed back to the main control module by the submodules, and the information is uniformly called and controlled after being processed by the main control module.
8. The liquid rocket engine valve test measurement and control system of claim 7, wherein the control process of the pressure step change control submodule is:
setting a pressure step change value, step change times and single step holding time;
taking the current pressure as the input of a PID algorithm, controlling the action of a pressure regulating valve through the PID algorithm, controlling the pressure regulating valve to stop acting when the pressure value of a pipeline where the pressure regulating valve is located reaches a pressure step change value, and starting pressure maintaining timing;
and when the pressure maintaining timing is equal to the single step maintaining time, adding one to the actual step change frequency, starting the action of the pressure regulating valve again, repeating the cycle until the actual step change frequency is consistent with the set step change frequency, closing the pressure regulating valve, and releasing the pressure.
9. The liquid rocket engine valve test measurement and control system of claim 7, wherein the control process of the tightness control sub-module is as follows:
setting target pressure and pressure maintaining time;
taking the difference value between the target pressure and the current pressure as the output of a PID algorithm, regulating the opening of the pressure regulating valve through the PID algorithm, controlling to close the pressure regulating valve until the error between the current pressure and the target pressure reaches a preset error range, and starting pressure maintaining timing;
starting data recording, and recording pressure change and leakage amount of a test required position;
and when the pressure maintaining timing is equal to the preset pressure maintaining time, controlling to close the pressure regulating valve to release the pressure.
10. The liquid rocket engine valve test measurement and control system of claim 7, wherein the control process of the switching times control submodule is as follows:
setting the cycle times and the time interval between two adjacent opening and closing of the tested valve;
and controlling the tested valve to start opening and closing operation, wherein the opening and closing operation is carried out once, the two times of opening directly need to wait for a preset time interval, and the actual cycle count is increased by one every time the opening and closing are carried out once until the actual cycle is equal to the set cycle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010269530 | 2020-04-08 | ||
| CN2020102695301 | 2020-04-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111693231A true CN111693231A (en) | 2020-09-22 |
Family
ID=72483265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010588637.2A Pending CN111693231A (en) | 2020-04-08 | 2020-06-24 | Liquid rocket engine valve test measurement and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111693231A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557200A (en) * | 2020-11-03 | 2021-03-26 | 蓝箭航天技术有限公司 | Multi-station hydrostatic test control method |
| CN112903281A (en) * | 2020-12-15 | 2021-06-04 | 西安航天动力研究所 | Combination valve test pipeline and system |
| CN112903280A (en) * | 2020-12-15 | 2021-06-04 | 西安航天动力研究所 | Valve impact performance test pipeline and system |
| CN116046377A (en) * | 2022-12-30 | 2023-05-02 | 北京天兵科技有限公司 | Rocket oxygen safety valve opening and closing performance test system and test method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203504Y (en) * | 2008-05-30 | 2009-03-04 | 中国石油集团川庆钻探工程有限公司 | Dynamic detection device of valve in petroleum drilling and production device in high and low temperature states |
| CN204064622U (en) * | 2014-07-07 | 2014-12-31 | 山东莱阳市昌誉密封产品有限公司 | A kind of thermocycling and air-tightness detection device |
| CN106595992A (en) * | 2016-10-28 | 2017-04-26 | 中国联合工程公司 | High-temperature high-pressure gas service life test and airtightness test system of valve and test method thereof |
| US9784638B1 (en) * | 2015-08-31 | 2017-10-10 | The Boeing Company | Method and system for diagnoses and prognoses of low temperature limit control valve |
| CN207197804U (en) * | 2017-08-31 | 2018-04-06 | 上海磊诺安防技术股份有限公司 | Valve reliability detection means |
| CN108225756A (en) * | 2017-12-28 | 2018-06-29 | 浙江工业大学 | Control valve performance evaluation system based on L abview |
| CN110082046A (en) * | 2019-04-26 | 2019-08-02 | 中国科学院理化技术研究所 | A kind of valve low temperature leak detection system and leak hunting method |
| CN110411735A (en) * | 2019-07-15 | 2019-11-05 | 合肥通用机械研究院有限公司 | A kind of Subzero valve simulation duty testing device |
-
2020
- 2020-06-24 CN CN202010588637.2A patent/CN111693231A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201203504Y (en) * | 2008-05-30 | 2009-03-04 | 中国石油集团川庆钻探工程有限公司 | Dynamic detection device of valve in petroleum drilling and production device in high and low temperature states |
| CN204064622U (en) * | 2014-07-07 | 2014-12-31 | 山东莱阳市昌誉密封产品有限公司 | A kind of thermocycling and air-tightness detection device |
| US9784638B1 (en) * | 2015-08-31 | 2017-10-10 | The Boeing Company | Method and system for diagnoses and prognoses of low temperature limit control valve |
| CN106595992A (en) * | 2016-10-28 | 2017-04-26 | 中国联合工程公司 | High-temperature high-pressure gas service life test and airtightness test system of valve and test method thereof |
| CN207197804U (en) * | 2017-08-31 | 2018-04-06 | 上海磊诺安防技术股份有限公司 | Valve reliability detection means |
| CN108225756A (en) * | 2017-12-28 | 2018-06-29 | 浙江工业大学 | Control valve performance evaluation system based on L abview |
| CN110082046A (en) * | 2019-04-26 | 2019-08-02 | 中国科学院理化技术研究所 | A kind of valve low temperature leak detection system and leak hunting method |
| CN110411735A (en) * | 2019-07-15 | 2019-11-05 | 合肥通用机械研究院有限公司 | A kind of Subzero valve simulation duty testing device |
Non-Patent Citations (1)
| Title |
|---|
| 徐亚敏: "高低温环境下阀门综合测量控制系统研制", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557200A (en) * | 2020-11-03 | 2021-03-26 | 蓝箭航天技术有限公司 | Multi-station hydrostatic test control method |
| CN112557200B (en) * | 2020-11-03 | 2024-01-19 | 蓝箭航天技术有限公司 | Multi-station hydrostatic test control method |
| CN112903281A (en) * | 2020-12-15 | 2021-06-04 | 西安航天动力研究所 | Combination valve test pipeline and system |
| CN112903280A (en) * | 2020-12-15 | 2021-06-04 | 西安航天动力研究所 | Valve impact performance test pipeline and system |
| CN112903281B (en) * | 2020-12-15 | 2023-12-26 | 西安航天动力研究所 | Combined valve test pipeline and system |
| CN112903280B (en) * | 2020-12-15 | 2023-12-26 | 西安航天动力研究所 | Valve impact performance test pipeline and system |
| CN116046377A (en) * | 2022-12-30 | 2023-05-02 | 北京天兵科技有限公司 | Rocket oxygen safety valve opening and closing performance test system and test method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111693231A (en) | Liquid rocket engine valve test measurement and control system | |
| KR100981330B1 (en) | Simulation apparatus and method for testing plc code of generating input/output model automatically | |
| CN104536436B (en) | A kind of Auto-Test System of industrial processes control logic and method | |
| CN108225756A (en) | Control valve performance evaluation system based on L abview | |
| CN106768687A (en) | A kind of Subzero valve performance testing device | |
| CN110146233A (en) | Gas leak detection apparatus | |
| CN109782738A (en) | The emulation test system and method for integrated liquid feeding control system | |
| CN203275076U (en) | Set-pressure detecting device of pilot operated safety valve | |
| CN104359590A (en) | Reduction box operation temperature monitoring method and device | |
| CN202710433U (en) | Gas diffusion initial velocity measuring system by isometric variable-pressure method | |
| CN103697930A (en) | Intelligent detection device and detection method for HART instrument aging test | |
| CN113720369A (en) | Intelligent operation and maintenance test platform for accelerating failure excitation of instrument | |
| CN113432863A (en) | Valve health state detection and diagnosis device and method | |
| CN2743817Y (en) | Direct pressure type gas leakage detector | |
| CN106796430B (en) | Monitor control device test device | |
| CN207703311U (en) | A kind of control system of civilian intelligent gas meter complete machine function detection equipment | |
| CN211207190U (en) | Automatic control system for air-tight test | |
| CN216081549U (en) | Instrument acceleration failure excitation system | |
| CN112525152B (en) | Quick response high accuracy atmospheric pressure altitude analog system | |
| CN213750199U (en) | Remote monitoring and maintaining system of chip testing machine | |
| CN114692388A (en) | Simulation system, method and device for thermal power plant and storage medium | |
| CN113552824A (en) | Embedded-based high-speed hydraulic power measurement controller | |
| CN105334045A (en) | Gas cold and hot impact test system based on PLC and control method thereof | |
| CN110703724A (en) | Sealing component sealing test measurement and control system based on LabVIEW | |
| CN103105205A (en) | Comprehensive detection system and method of burning gas, heating water and heating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200922 |