CN113959855A - Pipe pressure test device - Google Patents
Pipe pressure test device Download PDFInfo
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- CN113959855A CN113959855A CN202111231299.8A CN202111231299A CN113959855A CN 113959855 A CN113959855 A CN 113959855A CN 202111231299 A CN202111231299 A CN 202111231299A CN 113959855 A CN113959855 A CN 113959855A
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- 238000012360 testing method Methods 0.000 title claims abstract description 146
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 238000002347 injection Methods 0.000 claims abstract description 24
- 239000007924 injection Substances 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008054 signal transmission Effects 0.000 description 8
- 238000003825 pressing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005056 compaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0044—Pneumatic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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Abstract
A conduit pressure test device belongs to the technical field of conduit processing, and particularly relates to a conduit pressure test device. The invention provides a catheter pressure test device with a good use effect. The hydraulic test device comprises a water tank 7, wherein one side of the water tank 7 is provided with a hydraulic test bed 1 and a hydraulic test pipeline connecting part 3, and the other side of the water tank 7 is provided with a pneumatic test bed 2 and a pneumatic test pipeline connecting part 4, and the hydraulic test device is characterized in that a hydraulic test pipeline connector 8 is arranged on the hydraulic test bed 1; an air pressure test pipeline interface 9 is arranged on the air pressure test bed 2; the hydraulic pressure test pipeline connecting part 3 comprises a one-way valve 13, the outlet of the one-way valve 13 is respectively connected with the hydraulic pressure test pipeline interface 8 and one end of an unloading ball valve 12, the inlet of the one-way valve is connected with the outlet of a high-pressure water pump 15 through an electric ball valve, and the inlet of the high-pressure water pump 15 is communicated with a water tank; the other end of the unloading ball valve 12 is respectively connected with the outlet of the water injection pump 14 and one end of the overflow valve 11.
Description
Technical Field
The invention belongs to the technical field of conduit processing, and particularly relates to a conduit pressure test device.
Background
With the continuous development of the aviation field, the models of various military and civil aircrafts are continuously increased, the requirements on the machining quality and the precision of guide pipe parts are higher and higher, and therefore, the strength test and the air tightness test of the guide pipe are particularly important. The existing aviation conduit testing device has single purpose, and one device can only realize one testing requirement. A plurality of guide pipe test devices are needed on site, the occupied area is large, and the optimization of the production structure is not facilitated.
Disclosure of Invention
The invention aims at the problems and provides a catheter pressure test device with good use effect.
In order to achieve the purpose, the invention adopts the following technical scheme that the hydraulic test device comprises a water tank 7, wherein one side of the water tank 7 is provided with a hydraulic test bed 1 and a hydraulic test pipeline connecting part 3, and the other side of the water tank 7 is provided with an air pressure test bed 2 and an air pressure test pipeline connecting part 4, and the hydraulic test device is characterized in that a hydraulic pressure test pipeline interface 8 is arranged on the hydraulic test bed 1; an air pressure test pipeline interface 9 is arranged on the air pressure test bed 2;
the hydraulic pressure test pipeline connecting part 3 comprises a one-way valve 13, the outlet of the one-way valve 13 is respectively connected with the hydraulic pressure test pipeline interface 8 and one end of an unloading ball valve 12, the inlet of the one-way valve is connected with the outlet of a high-pressure water pump 15 through an electric ball valve, and the inlet of the high-pressure water pump 15 is communicated with a water tank; the other end of the unloading ball valve 12 is respectively connected with the outlet of the water injection pump 14 and one end of the overflow valve 11, and the inlet of the water injection pump 14 and the other end of the overflow valve 11 are communicated with the water tank; a drive input port of the high-pressure water pump 15 is connected with a drive output port of the servo driver 16;
the pneumatic test pipeline connecting part 4 comprises a ball valve, one end of the ball valve is connected with a pneumatic test pipeline connector 9, and the other end of the ball valve is connected with an air source through a pressure reducing valve and the ball valve in sequence.
As a preferred scheme, the hydraulic pressure test pipeline interface 8 is respectively connected with a pressure meter and a pressure transmitter.
As another preferable scheme, the water tank of the water tank 7 is arranged in the middle of the water tank 7, the water pressure test pipeline connector 8 is arranged on the side wall of one side of the water tank, and the air pressure test pipeline connector 9 is arranged on the side wall of the other side of the water tank.
As another preferred scheme, the pressure test pipeline interface 9 of the present invention is connected to a pressure meter and a pressure transmitter respectively.
As another preferred scheme, a ball valve is connected to a water inlet at the lower end of the water tank.
As another preferred scheme, the number of the pressure test pipeline interfaces 8 on the hydrostatic test bed is four, the four interfaces are distributed in an upper row and a lower row, and the specifications of adapters connected with the four interfaces are different; the four interfaces correspond to the combination of four groups of check valves, unloading ball valves, pressure gauges and pressure transmitters, each group of check valves is connected with an electric ball valve, and each group of unloading ball valves is connected with a water injection pump.
As another preferred scheme, the pressure test pipeline on the air pressure test bed is provided with four interfaces, the four interfaces are distributed in a row, each pressure test pipeline interface is connected with a hose, and the specifications of adapters connected with the four interfaces are different; the four interfaces correspond to the combination of four groups of ball valves, pressure gauges and pressure transmitters, and each group of ball valves is connected with a pressure reducing valve.
As another preferable scheme, the invention further comprises a test control part, the test control part comprises a main power supply part, a water pump control part, an operation indication part and a valve control part, a power output port of the main power supply part is respectively connected with a power input port of the water pump control part, a power input port of the operation indication part and a power input port of the valve control part, a signal transmission port of the operation indication part is connected with a signal transmission port of the water pump control part, and a signal transmission port of the water pump control part is connected with a signal transmission port of the valve control part.
As another preferable scheme, the main power supply part of the invention comprises a switch QF1, wherein the inlet end of QF1 is connected with the circuit, the outlet end of QF1 is respectively connected with A, B, C, N, B is connected with one end of the input end of a transformer TM1 through a breaker QF2, the other end of the input end of TM1 is connected with N, and the output end of TM1 is respectively connected with 24+ and 24-through a switch QF 3; c is connected with C2 through QF 4.
As another preferable scheme, the water pump control part comprises a relay KM1, wherein the inlet ends of KM1 controlled switches are respectively connected with A, B, C, the outlet ends of the KM1 controlled switches are respectively connected with A1, B1 and C1, the C1 is connected with N sequentially through a switch QF5 and a socket XS1, the A1 is connected with the 5 pin of the KM2 through a switch QF6, the 6 pin of the KM2 is connected with the L end of a water injection pump motor, the N end of the water injection pump motor is connected with the 4 pin of the KM2, the 3 pin of the KM2 is connected with the 2 pin of the KM2, and the 1 pin of the KM2 is connected with N;
a1, B1 and C1 are connected with a port R, S, T of the servo driver through a switch QF8, and a port U, V, W of the servo driver is connected with a port U, V, W of a servo motor of the high-pressure water pump;
a 25 port of the servo driver is connected with a Q0.0 port of the PLC through a 2.2K resistor, a 13 port of the servo driver is connected with a 24-port of the PLC, a 24 port of the servo driver is connected with a Q0.1 port of the PLC through a 2.2K resistor, a 12 port of the servo driver is connected with a 24-port of the PLC, a 20 port of the servo driver is connected with a 24+ port of the PLC, and a 6 port of the servo driver is controlled by a switch through a relay KA1 to be connected with the 24-port of the PLC;
the PLC adopts S7-CPU1214C, the L + of the PLC is connected with 24+, the M of the PLC is connected with 24-, the L + of the PLC is connected with L24+, the M of the PLC is connected with M, and the PLC is connected with the HMI;
the 1M end of the PLC is connected with 24-, the I0.0 end of the PLC is connected with 24+ through a power supply start-stop switch SB0, the I0.1 end of the PLC is connected with 24+ through a high-pressure water pump control switch SA1, and the I0.2 end of the PLC is connected with 24+ through a water injection pump control switch SA 2;
c2 is respectively connected with one end of a relay KA2 controlled switch, one end of a relay KA3 controlled switch and one end of a relay KA4 controlled switch, the other end of the KA2 controlled switch is connected with N through a KM1 control end, the other end of the KA3 controlled switch is connected with N through a KM2 control end, and the other end of the KA4 controlled switch is connected with N through an electric ball valve control relay-YV 01 control end.
As another preferred scheme, the operation indicating part comprises a PLC model S7-CPU1214C, wherein the 3L + port of the PLC is connected with 24+, the 3M port of the PLC is connected with 24-, the Q0.2 port of the PLC is connected with 24 through the control end of a relay KA 1-, the Q0.3 port of the PLC is connected with 24 through a high-pressure water pump operation indicating lamp, the Q0.5 port of the PLC is respectively connected with one end of the control end of the relay KA2 and one end of a power-on indicating lamp, and the other end of the control end of the KA2 and the other end of the power-on indicating lamp are connected with 24-;
the Q0.6 port of the PLC is respectively connected with one end of the control end of the relay KA3 and one end of the water injection pump operation indicator light, and the other end of the control end of the KA3 and the other end of the water injection pump operation indicator light are connected with 24-.
As another preferred scheme, the valve control part comprises a PLC model S7-CPU1214C, and the Q0.7 port of the PLC is connected with the control end 24-of an electric ball valve control relay KA 4.
Secondly, the invention also comprises SIMATIC S7-1200 PLC, wherein L + of the PLC is connected with L24+, M of the PLC is connected with M, 0+ port of the PLC is connected with L24+ through No. 1 hydraulic pressure transmitter P, and 0-port of the PLC is connected with M; the 1+ port of the PLC is connected with L24+ through a 2# hydraulic pressure transmitter P, and the 1-port of the PLC is connected with M; the 2+ port of the PLC is connected with L24+ through a 3# hydraulic pressure transmitter P, and the 2-port of the PLC is connected with M; the 3+ port of the PLC is connected with L24+ through a 4# hydraulic pressure transmitter P, and the 3-port of the PLC is connected with M.
In addition, the start and stop steps of the hydraulic test bed 1 and the pneumatic test bed 2 are as follows:
1. the power supply is powered on, 10S is waited, and the system is waited to run;
2. pulling a 'knob switch' (QF 1) on the operating platform to start the power supply, and then turning on an indicator light of the 'power supply connection';
3. the interface of a touch screen (HMI) is powered on, and a high-pressure water pump switch below the touch screen is pulled (a pressure test can be started);
4. powering off the touch screen computer (as the normal computer is powered off);
5. after the computer is shut down, a knob switch (QF 1) on the operating table is turned to a stop position, and the power supply is switched on to turn off the indicator light.
The invention has the beneficial effects.
The hydraulic pressure test bed and the air pressure test bed are designed into a whole, so that the area is saved, the operation is convenient, and the efficiency is high.
The test pipeline connecting part ensures the accuracy and the high efficiency of the test by matching the valves, the pumps and the interfaces.
Drawings
The invention is further described with reference to the following figures and detailed description. The scope of the invention is not limited to the following expressions.
FIG. 1 is a schematic structural diagram of a catheter pressure testing device.
FIG. 2 is a schematic view of the structure of an operation interface of a hydraulic pressure and pneumatic pressure test bed.
FIG. 3 is a schematic view of the connection part of the hydraulic test pipeline.
FIG. 4 is a schematic diagram of the gas circuit operation of the test bed.
FIG. 5 is a schematic diagram of the operation of the test bed waterway.
Fig. 6 to 17 are schematic diagrams of the operation of the test stand circuit.
Detailed Description
As shown in the figure, the hydraulic test device comprises a water tank 7, wherein one side of the water tank 7 is provided with a hydraulic test bed 1 and a hydraulic test pipeline connecting part 3, and the other side of the water tank 7 is provided with an air pressure test bed 2 and an air pressure test pipeline connecting part 4, and is characterized in that a hydraulic test pipeline connector 8 is arranged on the hydraulic test bed 1;
an air pressure test pipeline interface 9 is arranged on the air pressure test bed 2;
the hydraulic pressure test pipeline connecting part 3 comprises a one-way valve 13, the outlet of the one-way valve 13 is respectively connected with the hydraulic pressure test pipeline interface 8 and one end of an unloading ball valve 12, the inlet of the one-way valve is connected with the outlet of a high-pressure water pump 15 through an electric ball valve, and the inlet of the high-pressure water pump 15 is communicated with a water tank; the other end of the unloading ball valve 12 is respectively connected with the outlet of the water injection pump 14 and one end of the overflow valve 11, and the inlet of the water injection pump 14 and the other end of the overflow valve 11 are communicated with the water tank; a drive input port of the high-pressure water pump 15 is connected with a drive output port of the servo driver 16;
when the pressure testing device operates, the pressure in the water compaction testing pipeline is adjusted through the overflow valve 11, the water compaction testing pipeline is connected with the water pressure testing pipeline interface 8, the one-way valve 13 corresponding to the interface is opened through which interface, the pressure in the pressure testing pipeline is kept through the overflow valve 11, the pressure is relieved through the unloading ball valve 12 after the set time is reached, and the pressure is pressurized through the high-pressure water pump 15.
The pneumatic test pipeline connecting part 4 comprises a ball valve, one end of the ball valve is connected with a pneumatic test pipeline interface 9, and the other end of the ball valve is connected with an air source through a pressure reducing valve (the pressure of the pneumatic test pipeline is adjusted through the pressure reducing valve) and the ball valve in sequence. The connector 9 of the air pressure test pipeline is connected, and the corresponding ball valve of the connector is opened by using which connector.
And the hydraulic pressure test pipeline interface 8 is respectively connected with the pressure meter and the pressure transmitter.
The water tank of the water tank 7 is arranged in the middle of the water tank 7, the water pressure test pipeline interface 8 is arranged on the side wall of one side of the water tank, and the air pressure test pipeline interface 9 is arranged on the side wall of the other side of the water tank.
The air pressure test pipeline interface 9 is respectively connected with the pressure meter and the pressure transmitter.
And a water inlet at the lower end of the water tank is connected with a ball valve.
The hydraulic test bed is characterized in that the number of the pressure test pipeline connectors 8 on the hydraulic test bed is four, the four connectors are distributed in an upper row and a lower row (the upper row and the lower row are distributed to avoid interference), and the specifications of the adapters connected with the four connectors are different; the four interfaces correspond to the combination of four groups of check valves, unloading ball valves, pressure gauges and pressure transmitters, each group of check valves is connected with an electric ball valve, and each group of unloading ball valves is connected with a water injection pump.
The pressure test pipeline on the air pressure test bed is provided with four interfaces which are distributed in a row, each pressure test pipeline interface is connected with a hose, and adapters connected with the four interfaces are different in specification; the four interfaces correspond to the combination of four groups of ball valves, pressure gauges and pressure transmitters, and each group of ball valves is connected with a pressure reducing valve.
The test pipelines of the water pressure and air pressure test bed are respectively 4, so that multiple parts can be tested simultaneously, and the production efficiency is improved.
The water pump test system is characterized by further comprising a test control part, wherein the test control part comprises a main power supply part, a water pump control part, an operation indicating part and a valve control part, a power output port of the main power supply part is respectively connected with a power input port of the water pump control part, a power input port of the operation indicating part and a power input port of the valve control part, a signal transmission port of the operation indicating part is connected with a signal transmission port of the water pump control part, and a signal transmission port of the water pump control part is connected with a signal transmission port of the valve control part.
The main power supply part comprises a switch QF1, the inlet end of QF1 is connected with a circuit, the outlet end of QF1 is respectively connected with A, B, C, N, B is connected with one end of the input end of a transformer TM1 through a breaker QF2 (QF 2 is closed within a specified time), the other end of the input end of the TM1 is connected with N, and the output end of the TM1 is respectively connected with 24+ and 24-through a switch QF 3; c is connected with C2 through QF 4.
The water pump control part comprises a relay KM1, inlet ends of a KM1 controlled switch are respectively connected with A, B, C, outlet ends of a KM1 controlled switch are respectively connected with A1, B1 and C1, C1 is connected with N through a switch QF5 and a socket XS1 in sequence, A1 is connected with 5 pins of KM2 (a KM2 can adopt a contactor of CJX1-9/22 model) through a switch QF6, 6 pins of KM2 are connected with an L end of a water injection pump motor, the N end of the water injection pump motor is connected with 4 pins of KM2, 3 pins of KM2 are connected with 2 pins of KM2, and 1 pin of KM2 is connected with N;
a1, B1 and C1 are connected with an R, S, T port of a servo driver (the servo driver can adopt HSV0F-300-F3 type servo driver, HSV0F-300-F3 type servo driver is a servo driver produced by Guangzhou Hongsen servo motor company Limited, and the official website of the Guangzhou Hongsen servo motor company Limited is www.hs-fa.com) through a switch QF8, and a U, V, W port of the servo driver is connected with a U, V, W port of a high-pressure water pump servo motor; the CN1 plug is connected with a circuit system ENC in the high-pressure pump servo motor;
a 25 port of the servo driver is connected with a Q0.0 port of the PLC through a 2.2K resistor, a 13 port of the servo driver is connected with a 24-port of the PLC, a 24 port of the servo driver is connected with a Q0.1 port of the PLC through a 2.2K resistor, a 12 port of the servo driver is connected with a 24-port of the PLC, a 20 port of the servo driver is connected with a 24+ port of the PLC, and a 6 port of the servo driver is controlled by a switch through a relay KA1 to be connected with the 24-port of the PLC;
the PLC adopts S7-CPU1214C, the L + of the PLC is connected with 24+, the M of the PLC is connected with 24-, the L + of the PLC is connected with L24+, the M of the PLC is connected with M, and the PLC is connected with the HMI;
the 1M end of the PLC is connected with 24-, the I0.0 end of the PLC is connected with 24+ through a power supply start-stop switch SB0, the I0.1 end of the PLC is connected with 24+ through a high-pressure water pump control switch SA1, and the I0.2 end of the PLC is connected with 24+ through a water injection pump control switch SA 2;
c2 is respectively connected with one end of a relay KA2 controlled switch, one end of a relay KA3 controlled switch and one end of a relay KA4 controlled switch, the other end of the KA2 controlled switch is connected with N through a KM1 control end, the other end of the KA3 controlled switch is connected with N through a KM2 control end, and the other end of the KA4 controlled switch is connected with N through an electric ball valve control relay-YV 01 control end.
The operation indicating part comprises a PLC model S7-CPU1214C, the 3L + port of the PLC is connected with 24+, the 3M port of the PLC is connected with 24-, the Q0.2 port of the PLC is connected with 24-through the control end of a relay KA1, the Q0.3 port of the PLC is connected with 24-through a high-pressure water pump operation indicating lamp, the Q0.5 port of the PLC is respectively connected with one end of the control end of the relay KA2 and one end of a power supply connection indicating lamp, and the other end of the control end of the KA2 and the other end of the power supply connection indicating lamp are connected with 24-;
the Q0.6 port of the PLC is respectively connected with one end of the control end of the relay KA3 and one end of the water injection pump operation indicator light, and the other end of the control end of the KA3 and the other end of the water injection pump operation indicator light are connected with 24-.
The valve control part comprises a PLC model S7-CPU1214C, and a Q0.7 port of the PLC is connected with a control end 24-of a relay KA4 through an electric ball valve.
The system also comprises a SIMATIC S7-1200 PLC, wherein L + of the PLC is connected with L24+, M of the PLC is connected with M, a 0+ port of the PLC is connected with L24+ through a 1# hydraulic pressure transmitter P, and a 0-port of the PLC is connected with M; the 1+ port of the PLC is connected with L24+ through a 2# hydraulic pressure transmitter P, and the 1-port of the PLC is connected with M; the 2+ port of the PLC is connected with L24+ through a 3# hydraulic pressure transmitter P, and the 2-port of the PLC is connected with M; the 3+ port of the PLC is connected with L24+ through a 4# hydraulic pressure transmitter P, and the 3-port of the PLC is connected with M.
The test process is controlled through the test control part, the operation is accurate, the PLC can keep the operation history, the query is convenient, and the traceability is strong.
The start and stop steps of the hydraulic test bed 1 and the pneumatic test bed 2 are as follows:
1. the internal power supply transmits power, waits for 10S, and waits for the system to run;
2. pulling a 'knob switch' (QF 1) on the operating platform to start the power supply, and then turning on an indicator light of the 'power supply connection';
3. the interface of a touch screen (HMI, which is arranged at the upper end of a test bed) is powered on, and a high-pressure water pump switch below the touch screen is pulled (a pressure test can be started);
4. powering off the touch screen computer (as the normal computer is powered off);
5. after the computer is shut down, a knob switch (QF 1) on the operating table is turned to a stop position, and the power supply is switched on to turn off the indicator light;
pressing a hydraulic test bed:
1. and (5) installing the pipe. One end of a pipe to be tested is connected with a water pressure test pipeline connector 8, after the pipe is installed, the unloading ball valve is rotated to be in an open state, and a water injection pump button on an operation platform is started to inject water. The other end of the pipe is sealed by a nut and a bolt, and then the unloading ball valve is closed (the water injection pump is not stopped).
2. And (3) starting a button of a high-pressure water pump on the operation table to pressurize (after the high-pressure water pump is started, stopping the water injection pump, maintaining the pressure after the pressure (detected by a water pressure transmitter) reaches a set value, and maintaining the pressure for the time of completing the pressure maintaining, wherein the water injection pump firstly injects water to discharge air in the pipe, and then the high-pressure water pump enables the pressure in the pipe to reach a required value.
3. And (3) manually unloading, namely opening a cabinet door on the left side of the test bed, manually opening an unloading ball valve, replacing the guide pipe after unloading is finished, and repeating the steps.
A step of pressing an air pressure test bed: when measuring the air pressure, one end of the pipe is connected with the air pressure test pipeline interface 9, and the other end of the pipe is sealed by a nut and a bolt. Gas enters a measuring guide pipe through a pipeline, the pressure reducing valve and the ball valve are closed after certain air pressure is reached, specific air pressure is kept in the pipe, the ball valve and the pressure reducing valve are opened after pressure testing is finished, and the pressure gauge is connected with the pressure transformer in an air circuit and used for reading the current pressure value.
Interface operation of hydraulic pressure and air pressure test bed
1. The main picture of the water pressure and air pressure test bed can display the pressing curve, pressure, parameter setting and enabling selection. On the selected line, test parameters (including set pressure, dwell time, off-specification pressure drop, and high pressure pump top speed) were set.
2. And the historical curve picture can inquire the historical curve of the pressing pipeline according to the batch number and the serial number.
3. And the parameter setting interface comprises set pressure, pressure maintaining time, unqualified pressure drop, the highest speed of the high-pressure pump, the product batch number, the product length and the product thickness.
After a worker takes a part and a part process rule, a guide pipe is installed on a water pressure or air pressure testing machine, basic information and testing parameters (including set pressure, pressure maintaining time, unqualified pressure drop and the highest speed of a high-pressure pump) of the part are input into a water pressure or air pressure testing table operation interface according to the part process rule in a water pressure and air pressure testing table parameter setting operation interface, then the water pressure or air pressure is added into the guide pipe by pressing a button of the high-pressure pump, meanwhile, the water pressure or air pressure testing table operation interface can display a pressure curve, automatic pressure maintaining is carried out after the set value is reached, the original pressure is kept for the set time, if the sealing performance of the guide pipe is good, the curve and the pressure value can slightly fall but cannot be lower than the set unqualified value, automatic pressure relief is carried out after the set time, then a report is stored, and the guide pipe is taken down. If the profile and pressure values are below the fail values over the duration, the machine will automatically vent and indicate a fail at the interface.
The invention is suitable for aviation conduit pressure tests.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.
Claims (7)
1. A conduit pressure test device comprises a water tank (7), wherein one side of the water tank (7) is provided with a hydraulic test bed (1) and a hydraulic test pipeline connecting part (3), and the other side of the water tank (7) is provided with a pneumatic test bed (2) and a pneumatic test pipeline connecting part (4), and is characterized in that a hydraulic test pipeline connector (8) is arranged on the hydraulic test bed (1); an air pressure test pipeline connector (9) is arranged on the air pressure test bed (2);
the hydraulic pressure test pipeline connecting part (3) comprises a one-way valve (13), the outlet of the one-way valve (13) is respectively connected with the hydraulic pressure test pipeline interface (8) and one end of an unloading ball valve (12), the inlet of the one-way valve is connected with the outlet of a high-pressure water pump (15) through an electric ball valve, and the inlet of the high-pressure water pump (15) is communicated with a water tank; the other end of the unloading ball valve (12) is respectively connected with an outlet of a water injection pump (14) and one end of an overflow valve (11), and an inlet of the water injection pump (14) and the other end of the overflow valve (11) are communicated with a water tank; a drive input port of the high-pressure water pump (15) is connected with a drive output port of the servo driver (16);
the pneumatic test pipeline connecting part (4) comprises a ball valve, one end of the ball valve is connected with a pneumatic test pipeline connector (9), and the other end of the ball valve is connected with an air source through a pressure reducing valve and the ball valve in sequence.
2. The conduit pressure test device according to claim 1, wherein the hydraulic pressure test pipeline interface (8) is connected with a pressure meter and a pressure transmitter respectively.
3. The conduit pressure test device according to claim 1, wherein the water tank of the water tank (7) is arranged in the middle of the water tank (7), the hydraulic pressure test pipeline connector (8) is arranged on one side wall of the water tank, and the pneumatic pressure test pipeline connector (9) is arranged on the other side wall of the water tank.
4. The conduit pressure test device according to claim 1, wherein the pneumatic pressure test pipeline interface (9) is connected with a pressure meter and a pressure transmitter respectively.
5. The duct pressure test device according to claim 1, wherein a ball valve is connected to a water inlet at the lower end of the water tank.
6. The pressure test device for the conduit according to claim 1, wherein the number of the pressure test pipeline connectors (8) on the hydraulic test bed is four, the four connectors are distributed in an upper row and a lower row, and the specifications of adapters connected with the four connectors are different; the four interfaces correspond to the combination of four groups of check valves, unloading ball valves, pressure gauges and pressure transmitters, each group of check valves is connected with an electric ball valve, and each group of unloading ball valves is connected with a water injection pump.
7. The pressure test device for the conduit according to claim 1, wherein the pressure test pipeline interfaces on the air pressure test bed are four, the four interfaces are distributed in a row, each pressure test pipeline interface is connected with a hose, and adapters connected with the four interfaces have different specifications; the four interfaces correspond to the combination of four groups of ball valves, pressure gauges and pressure transmitters, and each group of ball valves is connected with a pressure reducing valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231299.8A CN113959855A (en) | 2021-10-22 | 2021-10-22 | Pipe pressure test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111231299.8A CN113959855A (en) | 2021-10-22 | 2021-10-22 | Pipe pressure test device |
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| CN113959855A true CN113959855A (en) | 2022-01-21 |
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| CN202111231299.8A Pending CN113959855A (en) | 2021-10-22 | 2021-10-22 | Pipe pressure test device |
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| CN112881001A (en) * | 2021-01-28 | 2021-06-01 | 吴春花 | Valve production is with actual measurement device after sale |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1123410A (en) * | 1997-07-04 | 1999-01-29 | Hideo Seta | Water pressure withstanding test apparatus and method therefor |
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| CN112881001A (en) * | 2021-01-28 | 2021-06-01 | 吴春花 | Valve production is with actual measurement device after sale |
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