CN106768699A - Source of the gas and rudder system testing equipment - Google Patents

Abstract

The invention discloses a kind of source of the gas and rudder system testing equipment, including gas cylinder combined system, the gas cylinder combined system includes that air supply system, tracheal system air inlet are test mouth, gas outlet by the road, threeway connection the first pressure reducer and the second pressure reducer.It is contemplated that realizing carrying out combination property detection to source of the gas, rudder system using the source of the gas, rudder system testing equipment.Including：The pressure of air supply system, data on flows detection, the detection of steering wheel data on flows, the detection of pressure setup time, and above-mentioned data are shown, record, preserved；Additionally, equipment can also realize itself air tightness test, air supply system air tightness test, external pipeline system air tightness test, air supply system pressure reducer testing performance index；External pressure sensor performance test.Possesses highly integrated property, easily mobile, easy to operate etc. multinomial outstanding advantages.

Description

Air source and rudder system testing equipment

technical field

The invention relates to a detection device, in particular to a gas source and rudder system detection device.

Background technique

The gas storage cylinder combination system is the air source system, which is a device that can store and provide compressed air of corresponding pressure.

The composition of the gas cylinder combination system includes: air source system, electric explosion valve nozzle, manual stop valve, jacket nut and nozzle, tee, pressure reducer. Its composition schematic diagram is shown in Figure 1.

The pressure of the gas source system is 35MPa after sufficient gas. By debugging the pressure reducers 1 and 2, the outlet pressure Q1 of the pressure reducer 1 can be 1.4±0.15MPa and the flow rate is 750L/min; the outlet pressure of the pressure reducer Q2 is 0.9±0.1MPa and the flow rate is 240L/min.

In terms of aerospace, the change of missile attitude, such as pitch, yaw, roll and other movements, is completed by the cooperation of the steering gear. The steering gear is the executive mechanism of the missile control system. Its function is to move the adjustment mechanism to generate the steering torque of the split system according to the control signal of the control system, control the deflection of the missile rudder surface or aileron, change its flight route, and achieve rapid maneuverability. . As an important part of the missile guidance and control system, the performance of the steering gear directly determines the dynamic quality and guidance accuracy of the missile flight process.

Pneumatic steering gear is a commonly used type of steering gear for missiles. Its flow rate is an important indicator for judging the performance and stability of the steering gear, and it needs to be tested and tested frequently.

Contents of the invention

The object of the present invention is to provide a kind of air source and rudder system detection equipment that solves the above problems.

In order to achieve the above object, the technical solution adopted by the present invention is as follows: a gas source and rudder system detection equipment, including a gas storage bottle combination system, the gas storage bottle combination system includes a gas source system, and the gas source system enters The gas port is a test port, and the gas outlet is connected to the first pressure reducer and the second pressure reducer through a pipeline and a tee, and also includes a cabinet, a data acquisition system, a control computer and a power supply unit, and the gas storage cylinder combination system is located in the cabinet , and there are 5 external interfaces W1 interface, W2 interface, Q1 interface, Q2 interface, Q3 interface on the cabinet, and each interface is equipped with a plug;

The W1 interface is connected to the W2 interface, and a manual shut-off valve K1, a pressure gauge P1, a manual shut-off valve K2, a pressure gauge P2, a first pressure transmitter, and a first pressure transmitter are sequentially arranged between the W1 interface and the W2 interface. The device is close to the W2 interface, and the W2 interface is connected to the test port through a hose, and a solenoid valve is connected in parallel with the manual stop valve K2;

After the Q1 interface passes through the first flow meter, manual shut-off valve K3, second pressure transmitter, pressure gauge P4, and first relief valve, it is connected to the outlet of the second pressure reducer through a hose.

After the Q2 interface and Q3 interface are combined by the tee, they pass through the second flowmeter, the manual stop valve K4, the third pressure transmitter, the pressure gauge P3, and the second overflow valve in turn, and then connect to the first reducing valve through a hose. the outlet of the compressor;

All pressure transmitters, flow meters, and solenoid valves are connected to the data acquisition system, and the pressure signal and flow signal are converted into electrical signals and sent to the data acquisition system;

The data acquisition system is connected to the control computer through a USB bus, collects each electrical signal and converts it into a digital signal and sends it to the control computer through the USB bus;

After the control computer acquires the digital pressure signal and flow signal and processes them, the time pressure curve and the time flow curve are drawn and displayed.

As a preference: the combined system of the gas storage cylinder and the interface are connected by pipes, and the pipes are made of stainless steel seamless steel pipes.

As a preference: the surfaces of the pressure gauges P1, P2, P3 and P4 are all arranged on the outer wall of the cabinet.

As a preference: the measuring range of the pressure gauge P1 and the pressure gauge P2 is 0~40MPa; the measuring range of the pressure gauge P3 and the pressure gauge P4 is 0~2Mpa.

As a preference: the power supply unit is a 24V DC power supply.

As a preference: the side of the cabinet is further provided with a J1 interface and a J2 interface, the J1 interface is connected to the first overflow valve and its corresponding hose, and the J2 interface is connected to the second overflow valve and its corresponding hose.

Compared with the prior art, the present invention has the advantages that: the present invention can realize the comprehensive performance detection of the air source and the rudder system. Including: pressure and flow data detection of air source system, steering gear flow data detection, pressure establishment time detection, and display, record and save the above data; in addition, the equipment can also realize its own air tightness test, air source system air Tightness test, airtightness test of external pipeline system, performance index test of pressure reducer of air source system; performance test of external pressure sensor. To meet the production commissioning and acceptance of the gas storage cylinder combination system developed and produced by our factory. During product debugging, the precision of the pressure reducer is debugged under the condition of load; during product acceptance, the quantitative detection of parameters such as pressure establishment time, pressure accuracy, and flow accuracy of the gas source system is mainly carried out. Perform performance tests under various environmental conditions. Compared with traditional equipment, this invention has added a number of important test functions, and has many outstanding advantages such as high integration, easy movement, and easy operation.

Description of drawings

Fig. 1 is the composition schematic diagram of the gas storage cylinder combined system;

Fig. 2 is a schematic circuit diagram of the present invention;

Fig. 3 is a hardware connection diagram of the present invention.

In the figure: 1. Air source system; 2. Electric explosion valve nozzle; 3. Tee; 4. The first pressure reducer; 5. The second pressure reducer; 6. The first pressure transmitter; 7. The first 2. Pressure transmitter; 8. Third pressure transmitter; 9. First overflow valve; 10. Second overflow valve; 11. First flowmeter; 12. Second flowmeter; 13. Solenoid valve.

detailed description

The present invention will be further described below in conjunction with accompanying drawing.

Embodiment 1: Referring to Fig. 1 to Fig. 3, a gas source and rudder system detection device includes a gas storage bottle combination system, and the gas storage bottle combination system includes a gas source system 1, an air inlet of the gas source system 1 It is a test port, and the air outlet is connected to the first pressure reducer 4 and the second pressure reducer 5 through the pipeline and the tee 3. The gas source system 1 is provided with an electric explosion valve nozzle 2, and also includes a cabinet, a data acquisition system, and a control system. A computer and a power supply unit, the gas cylinder combination system is located in a cabinet, and the cabinet is provided with five external interfaces W1 interface, W2 interface, Q1 interface, Q2 interface, Q3 interface, and each interface is equipped with a plug;

The W1 interface is connected to the W2 interface, and a manual shut-off valve K1, a pressure gauge P1, a manual shut-off valve K2, a pressure gauge P2, and a first pressure transmitter 6 are sequentially arranged between the W1 interface and the W2 interface. The transmitter 6 is close to the W2 interface, and the W2 interface is connected to the test port through a hose, and a solenoid valve 13 is connected in parallel with the manual stop valve K2;

After the Q1 interface passes through the first flow meter 11, the manual shut-off valve K3, the second pressure transmitter 7, the pressure gauge P4, and the first overflow valve 9, it is connected to the outlet of the second pressure reducer 5 through a hose;

After the Q2 interface and Q3 interface are combined by the tee 3, they pass through the second flowmeter 12, the manual shut-off valve K4, the third pressure transmitter 8, the pressure gauge P3, and the second overflow valve 10 in sequence, and then pass through the hose Connected with the outlet of the first pressure reducer 4;

Each pressure transmitter, flow meter, and solenoid valve 13 are connected to the data acquisition system, and the pressure signal and flow signal are converted into electrical signals and sent to the data acquisition system;

The data acquisition system is connected to the control computer through a USB bus, collects each electrical signal and converts it into a digital signal and sends it to the control computer through the USB bus;

After the control computer acquires the digital pressure signal and flow signal and processes them, the time pressure curve and the time flow curve are drawn and displayed.

In this embodiment: the combined system of the gas storage cylinder and the interface are all connected by pipes, and the pipes are made of stainless steel seamless steel pipes; the surfaces of the pressure gauges P1, P2, P3, and P4 are all arranged on the outer wall of the cabinet The measuring range of pressure gauge P1 and pressure gauge P2 is 0~40MPa; the measuring range of pressure gauge P3 and pressure gauge P4 is 0~2Mpa; the power supply unit is 24V DC power supply; the side of the cabinet is also provided with J1 interface and J2 The J1 interface is connected with the first overflow valve 9 and its corresponding hose, and the J2 interface is connected with the second overflow valve 10 and its corresponding hose.

The total height of the cabinet is 1530mm, the total width is 1520mm, the height of the work surface is 960mm, and the appearance is sprayed with white paint; the parameter indication surface of the cabinet is fixed with a 19-inch industrial display, a pressure gauge and a DC stabilized power supply with adjustable output voltage. A keyboard and mouse set and a shut-off valve for controlling the computer are fixed on the work surface of the cabinet. The area inside the cabinet is divided into two areas, the pneumatic pipeline and the electrical cable system, which are separated by a black fixing plate. The electrical area is fixed with an industrial computer and a data acquisition system, and the installation of the two chassis and the fixing plate is firm and reliable. The area of the pneumatic pipeline system is fixed with a solenoid valve 13, a pressure transmitter, a flow meter, an overflow valve and a pipeline system. The pipeline system is installed firmly and reliably without air leakage.

The main electrical functional components of the present invention include: a control computer, a data acquisition system, a pressure transmitter, a flow meter, a DC stabilized power supply, cables and the like.

The virtual instrument software running on the control computer sends control commands and acquires data to the data acquisition system through the USB bus; the regulated power supply provides 24VDC high-precision power for the data acquisition system. The data acquisition system provides 24V power to the pressure transmitter, flowmeter, and solenoid valve 13 through the internal secondary power supply module; the pressure transmitter and flowmeter convert the pressure and flow signals into electrical signals and send them to the data acquisition system. The acquisition system converts the electrical signal into a digital signal and sends it to the control computer through the USB bus, and the virtual instrument software realizes the calculation, display, storage and playback of the data.

The industrial computer in the equipment control computer adopts Advantech IPC 610L industrial computer and standard 4U chassis. CPU is Intel Core 2 Duo processor, 2.8GHz; memory DDR3 2G; hard disk 500G; optical drive DVD burning. The industrial computer, the bracket and the mounting plate are fixed by screws, which is stable and reliable.

The display in the control computer adopts CNUS, T190pc type 19-inch industrial display with a resolution of 1280*1024. Configure a double-headed VGA cable and a power transformer cable. The display is fixed on the parameter indication surface of the cabinet through the accessories of the left and right ears, which is stable and reliable.

The keyboard in the control computer is recessed in the cabinet worktop.

The data acquisition system uses a 2U standard chassis. The chassis integrates professional boards such as secondary power supply module, data acquisition module, and relay control board. 0.2mm ² Teflon silver-plated wire is used for welding between boards and boards and external connectors. The wire core is made of high-purity oxygen-free copper silver-plated wire material. The silver-plated layer is thick, high in purity, and low in internal resistance. , low loss, has excellent anti-aging performance, suitable for internal wiring of communication equipment and electronic instruments, has high fidelity to data, and effectively avoids interference between data. The sampling channels all use the same reference ground (housing).

The data acquisition module can realize power supply for pressure transmitters and flowmeters; collect data signals of pressure and flow channels. Its basic parameters are as follows: analog quantity acquisition is possible; the basic parameters of the data acquisition system are as follows: resolution: 16bit; input power: 24VDC; analog input impedance: 10MΩ; sampling rate: 1000 sampling points/s; number of sampling channels: 12 ;Measurement accuracy: ±0.1%;Working temperature:﹣10℃~﹢50℃;Bus form: USB bus.

The DC regulated power supply adopts Hansheng Puyuan high-precision, low-ripple program-controlled regulated power supply. Provide 24V DC power supply for the data acquisition system. Its main performance parameters: input voltage 220VAC; output voltage range 0~30V adjustable; output current range 0~5A adjustable; output ripple less than 1%; with over-voltage, over-current, over-temperature protection.

The DC stabilized power supply and the cabinet parameter indication surface are on the same plane, the power supply is included inside the cabinet, the adjustment knob and the output voltage display screen expose the cabinet parameter indication surface, which is convenient for operation and observation. The DC stabilized power supply is fixed by the support plate and the cassette, which is stable and reliable.

The cables in the equipment mainly include: cables between the data acquisition system and the pressure transmitter, flow meter, and solenoid valve 13. The cables provide power for the pressure transmitter, flowmeter, and solenoid valve 13 and transmit and collect data signals. The cables in the equipment uniformly use RVVP7×0.13 shielded wires. The cable routing has been fixed, and the laying standards are neat and tidy.

The main functional components of the gas circuit system of the present invention include: gas storage cylinder combination system, pressure gauge, pressure transmitter, flow meter, solenoid valve 13, manual stop valve, overflow valve, steering gear, pipeline and pipeline connectors, etc. .

Pressure gauge: The equipment adopts two pressure gauges of 0~60MPa/0.25 grade and 0~6MPa/0.25 grade pressure gauge, and the measurement verification is qualified. They are respectively used to measure the outlet pressure of the gas source (pressure gauge P1), the inlet pressure of the pressure reducer (the second pressure gauge), and the outlet pressure of the two pressure reducers (the first and second pressure reducer 5 outlets). The pressure gauge is fixed and fastened reliably, and an explosion-proof protective device is used.

Pressure transmitter: The equipment adopts 3 MicroSensor MPM489 series high-stability pressure transmitters. Its main technical indicators are as follows: measuring range 2 0~2MPa, 1 0~40MPa; accuracy less than 0.25%FS; output pressure 0~5VDC; output impedance less than 3KΩ; power supply 11V~28VDC; process connection M20×1.5 Thread with waterline seal; overload pressure 1.5 times full scale pressure. The three pressure transmitters are used to measure the inlet pressure of the reducer, the outlet pressure of reducer 1, and the outlet pressure of reducer 2 respectively.

The pressure transmitter is connected to the pipeline through the ball joint and the outer nut. Because the vibration source of the equipment has been effectively suppressed, the normal detection and sensing of the pressure transmitter will not be disturbed by vibration.

Flowmeter: The equipment adopts 2 Sevenstar D07-60BM series mass flowmeters with high precision, high stability and large flow. Its main technical indicators are as follows: one full-scale input range is 0~500L/min, the other is 0~1000L/min; accuracy ±2%FS; linearity ±1%FS; repeat accuracy ±0.2%FS; response time≤ 10sec; withstand voltage 3MPa; air leakage rate 1×10 ^-8 scc/s; signal output 0~5VDC; power supply 24VDC. The two flowmeters are used to measure the outlet flow of the two pressure reducers respectively.

The flowmeter is installed horizontally and fixed on the mounting plate by screws. The fixing method has excellent anti-vibration effect.

Solenoid valve 13: The solenoid valve 13 of the equipment adopts the DCF7 electric solenoid valve 13 of Kaimai (Luoyang) Air Source Co., Ltd. Its main technical indicators are as follows: two-position normally closed high-pressure solenoid valve 13, working pressure 21MPa; working voltage 24V~27VDC; nominal diameter φ9.5mm; response time ≤ 250ms. The solenoid valve 13 is used to open the inlet pressure of the two pressure reducers.

Solenoid valve 13 is fixed on the support seat, and support seat is fixed on the mounting plate by screw. This fixing scheme effectively restrains the bad influence produced by the vibration every time the electromagnetic valve 13 is opened.

Manual shut-off valve: This equipment uses 4 manual shut-off valves. Y5704.4-91 manual stop valve from Ningbo Xingjian Aerospace Machinery Factory is used. Its main technical indicators are as follows: nominal diameter 10mm, nominal pressure 35MPa, M22×1.5, 37°. The 4 manual shut-off valves are used to control the on-off of the air source, the on-off between the air source and the pressure reducing valve, the on-off between the pressure reducer 1 and the load, and the connection between the pressure reducer 2 and the load. broken.

The manual shut-off valve is fixed on the stainless steel panel of the equipment operation table, the installation is firm and reliable, and the operation is convenient.

Relief valve: This equipment uses 2 relief valves. KJ24-1/01 safety valve from Ningbo Xingjian Aerospace Machinery Factory is used. Its main technical indicators are as follows: nominal diameter 10mm, nominal pressure 1~2MPa, M22×1.5, 37°. The two overflow valves are piston-type opening working methods, which are used to ensure the safety pressure at the outlet of the two pressure reducers. The safety working pressure set by the overflow valves 1 and 2 is 2MPa. When the overflow valve is closed, the airtightness is excellent, and no air leakage is guaranteed for 10 minutes.

Pipeline and pipeline connectors: the pipeline is made of stainless steel seamless steel pipe with material grade 0Cr18Ni9Ti, and there are two pipeline specifications: one specification 14×2 (outer diameter 14, wall thickness 2, diameter 10) is manual cut-off Valve, solenoid valve 13, relief valve, pressure transmitter, flow meter, and external joints; one specification 6×1 (outer diameter 6, wall thickness 1, diameter 4) is used for pressure gauges and pipelines For connection between systems. The pipeline connection shall be connected according to the working principle diagram of the air source/rudder system testing equipment, and the installation, connection and laying of the pipeline shall comply with the general principles of pipeline layout. The pipeline system, pipeline joints, valves, etc. have been checked for air tightness, and there is no air leakage.

The W1 interface, W2 interface, J1 interface, J2 interface, Q1 interface, Q2 interface, and Q3 interface specifications of the equipment are all M18×1.5, 37° inner cone. The connection with peripheral products adopts Ningbo Xingjian 37° ball joint connection type high-pressure rubber hose. The thread size is M22×1.5, and the diameter of the joint is 10mm. And provide adapters for equipment inlets, equipment rubber hoses and gas cylinders, pressure reducers, etc.

Before using the test equipment, please ensure that all manual shut-off valves are closed. Air source system 1. The connection between the steering gear and the equipment is correct. Ensure that both the pressure reducer and the relief valve are debugged to meet the performance indicators required by the design, that is, the pressure of pressure reducer Q1 is 1.4±0.15MPa, the flow rate is 750L/min; the pressure reducer Q2 is 0.9±0.1MPa, and the flow rate is 240L/min min; the opening pressure of the two overflow valves is 2MPa.

The pressure gauge P1 in the equipment indicates the gas source pressure, P2 indicates the inlet pressure of the pressure reducer Q1 and Q2, P3 indicates the outlet pressure of the pressure reducer Q1, and P4 indicates the outlet pressure of the pressure reducer Q2. When debugging the equipment, please use the reading of the pressure gauge as the basis for debugging.

Open the manual cut-off valve K1 for the outlet pressure of the air source, and the reading of the pressure gauge P1 is used as a reference for the adjustment of the air source pressure. Open the manual cut-off valve K2 for the inlet pressure of the pressure reducer, and the reading of the pressure gauge P2 is used as the reference for debugging the inlet pressure of the pressure reducer Q1 and Q2. Keep the manual shut-off valves K3 and K4 open. The readings of pressure gauges P3 and P4 are respectively used as the outlet pressure debugging reference of pressure reducer Q2 and Q1.

In order to ensure the normal use of the device, please refer to the following procedures to operate.

Connect the test pipeline----connect the cable----turn on the power switch of the electrical equipment----open the valve----run the software----start the test.

Plug the power input cables of the industrial computer, monitor, and DC power supply into the 220VAC power strip. First, turn on the power switches of the industrial computer, display, and DC regulated power supply; secondly, press the output switch of the DC regulated power supply; finally, press the power switch of the data acquisition system. In order to make the test data more accurate, it is recommended to power on and preheat for 5 minutes.

Open the manual cut-off valve K1 for the outlet pressure of the air source. Open the manual cut-off valve K2 or solenoid valve 13 of the inlet pressure of the pressure reducer, and the opening of the solenoid valve 13 needs to send a control command through software. The manual stop valve K2 has the same function as the solenoid valve 13 and can be replaced. However, if it is necessary to measure the pressure build-up time, please close the manual shut-off valve K2, and send a control command through the software to open the solenoid valve 13. Keep the manual shut-off valves K3 and K4 open. If you only need to test the data of the outlet branch of one pressure reducer, just keep the manual shut-off valve corresponding to the branch open.

1. Air source system 1 pressure flow test

Connected to the air source system 1 and the pressure reducing valve, the load adopts the pneumatic steering gear, and the overall equipment is tested for pressure and flow.

2. Servo flow test

Connect to the air source system 1 and the pressure reducing valve, and the 3 outlets of the equipment are connected to the air pressure steering gear to test the flow rate of the steering gear.

3. Check and test the airtightness function of the equipment itself

The equipment is not connected to the air source system 1 and the pressure reducing valve, and W2 is connected to J1 and J2 through the tee 3 and short steel pipes. Q1, Q2, Q3 are sealed with plugs. Do the air tightness inspection test of the equipment itself. The test pressure control shall not exceed 2MPa.

Judgment criteria for the airtightness test of the equipment itself: 1.5MPa pressure is passed through the air source inlet W1 of the equipment, the exhaust port of the equipment is blocked with a plug, the pressure gauge reading is used as the judgment reference, the pressure holding test lasts for 1 hour, and the pressure is reduced by 0.1MPa If it is within, it is judged that the airtight test is qualified.

4. Air tightness test of air source system 1

The equipment is connected to the air source system 1 and the pressure reducing valve. Q1, Q2, Q3 are sealed with plugs.

Gas source system 1 airtight test qualification criteria: Pass high-purity nitrogen with a pressure of 0.5+0.1MPa from the gas source inlet W1 of the equipment to conduct an airtight test on the gas source system 1 pipeline, close the manual shut-off valves K3 and K4 in the equipment, Taking the reading of the pressure gauge as the judgment standard, when the reading of the pressure gauge P2 has reached 0.5MPa, close the solenoid valve 13 and the gas supply from the air source, and keep the pressure for 3 minutes. If there is no air leakage, it is judged that the airtight test is qualified.

5. Air tightness test of external piping system

Before this function test, please connect W2 and J1 through the steel pipe, tee 3 joint and steel pipe, one end of the external piping system is connected to Q1, and the other end is blocked with a plug. (Note: The test pressure must not exceed 2MPa, otherwise the overflow valve will open)

6. Pressure build-up time test

Close the manual cut-off valve K2, the computer controls the solenoid valve 13 to open, and the initial value of the timing is now. The judgment standard is the pressure transmitter 3. When the pressure sensor 3 reaches the internally set pressure threshold of 1.3MPa, record the time at this moment and subtract it from the initial value to obtain the pressure establishment time and display it.

7. Pressure reducer performance index test

Adjust the outlet pressure of the reducer, the outlet pressure of reducer Q1 is 1.5MPa, and the outlet pressure of reducer Q2 is 1.0MPa. The equipment is tested for pressure and flow, and the software performs real-time display based on the data of pressure sensors 2 and 3, and the data can be recorded and saved in the form of reports.

8. External pressure sensor test

Connect the external pressure sensor between W2 and J1 (not connected to the gas source system 1) through the tee 3 and the short steel pipe, and connect the electrical interface of the external pressure sensor to the data collector of the equipment. Test the pressure data of the external pressure sensor and compare the test data with the pressure data of the device itself to make a rough judgment on the performance of the external pressure sensor.

Claims (6)

1. a kind of source of the gas and rudder system testing equipment, including gas cylinder combined system, the gas cylinder combined system include source of the gas System, the air supply system air inlet for test mouth, gas outlet by the road, threeway connection the first pressure reducer and the second pressure reducer, It is characterized in that：Also include rack, data collecting system, control computer and power supply unit, the gas cylinder combined system position In in rack, and rack to be provided with 5 external interface W1 interfaces, W2 interfaces, Q1 interfaces, Q2 interfaces, Q3 interfaces, each interface equal Equipped with plug；

The W1 interfaces and W2 orifices, and be sequentially provided between W1 interfaces and W2 interfaces hand stop valve K1, pressure gauge P1, Hand stop valve K2, pressure gauge P2, first pressure transmitter, first pressure transmitter is near W2 interfaces, and W2 interfaces are through flexible pipe Connected with test mouth, a magnetic valve is also parallel with hand stop valve K2；

After the Q1 interfaces are through first flowmeter, hand stop valve K3, second pressure transmitter, pressure gauge P4, the first overflow valve, By the outlet of the pressure reducer of soft pipe connection second,

After the Q2 interfaces, Q3 interfaces merge through threeway, successively through second flowmeter, hand stop valve K4, the 3rd pressure inverting After device, pressure gauge P3, the second overflow valve, by the outlet of the pressure reducer of soft pipe connection first；

Each pressure transmitter, flowmeter, magnetic valve are connected with data collecting system, and pressure signal, flow signal are converted to Electric signal sends into data collecting system；

The data collecting system is connected with control computer by usb bus, is collected each electric signal and is transformed into numeral After signal control computer is sent to by usb bus；

After the control computer obtains the pressure signal of numeral, flow signal treatment, time pressure curve and time are depicted as Flow curve simultaneously shows.

2. source of the gas according to claim 1 and rudder system testing equipment, it is characterised in that：Gas cylinder combined system and interface Connected using pipeline, the pipeline uses stainless-steel seamless pipe.

3. source of the gas according to claim 1 and rudder system testing equipment, it is characterised in that：The pressure gauge P1, pressure gauge P2, pressure gauge P3, the surface of pressure gauge P4 are arranged at rack outer wall.

4. source of the gas according to claim 1 and rudder system testing equipment, it is characterised in that：Pressure gauge P1, pressure gauge P2 Measurement range is 0 ~ 40MPa；0 ~ the 2Mpa of measurement range of pressure gauge P3, pressure gauge P4.

5. source of the gas according to claim 1 and rudder system testing equipment, it is characterised in that：Said supply unit is that 24V is straight Stream power supply.

6. source of the gas according to claim 1 and rudder system testing equipment, it is characterised in that：The side of cabinet is additionally provided with J1 Interface and J2 interfaces, the J1 interfaces connect the first overflow valve and its correspondence flexible pipe, and J2 interfaces connect the second overflow valve and its is right Answer flexible pipe.