CN111766024A - Compressed gas pipeline detection demonstration test bed and method for underwater navigation carrier - Google Patents
Compressed gas pipeline detection demonstration test bed and method for underwater navigation carrier Download PDFInfo
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- 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
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
- G01M3/243—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations for pipes
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Abstract
The invention relates to a compressed gas pipeline detection demonstration test bed for an underwater navigation carrier, which comprises a compressed gas inlet section, a pipeline leakage experiment section and a compressed gas discharge section which are sequentially connected; the compressed gas inlet section is used for compressing air into compressed air required underwater for the pipeline leakage detection experiment section; a pressure gauge and a flowmeter are arranged at the compressed gas inlet section; the pipeline leakage experiment section is used for detecting the damage and leakage of the pipe wall of a pipeline to be detected used by the underwater navigation carrier; a pressure gauge and a flowmeter are arranged at two ends of the pipeline to be detected; the compressed gas discharge section is connected with the output end of the pipeline leakage experiment section; the invention has reasonable design, compact structure and convenient use.
Description
Technical Field
The invention relates to a test bed and a method for detecting and demonstrating a compressed gas pipeline of an underwater navigation carrier.
Background
At present, a compressed gas system is an important guarantee system for an underwater vehicle, and the system generates compressed gas with certain pressure by an air compressor, and the compressed gas is conveyed and stored in a gas cylinder by a pipeline and is used by other machines and systems of a ship. Because the background noise on the ship is complex, part of compressed gas pipelines are limited by radiation, high temperature, spatial layout and the like, and are difficult to be perceived when micro leakage occurs, which is not favorable for the navigation safety of the ship. How to solve the technical problem that the detection of trace leakage is an urgent need to be solved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a compressed gas pipeline micro-leakage detection demonstration test bed for an underwater navigation carrier. Aiming at the problem of trace leakage detection of ship compressed gas pipelines, the invention designs and constructs a comprehensive test table for trace leakage of the ship compressed gas pipelines, which is used for simulating trace leakage conditions of the pipeline walls of the pipeline leaking gas and realizing online trace leakage monitoring of the system by a loaded acoustic emission detection system.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a compressed gas pipeline detection demonstration test bed for an underwater navigation carrier comprises a compressed gas inlet section, a pipeline leakage experiment section and a compressed gas discharge section which are sequentially connected;
a compressed gas inlet section for compressing air into compressed air required underwater for detection
The pipeline leakage experimental section is used; a pressure gauge and a flowmeter are arranged at the compressed gas inlet section;
the pipeline leakage experiment section is used for detecting the damage and leakage of the pipe wall of a pipeline to be detected used by the underwater navigation carrier; a pressure gauge and a flowmeter are arranged at two ends of the pipeline to be detected;
the compressed gas discharge section is connected with the output end of the pipeline leakage experiment section;
in the pipeline leakage experiment section, the pipeline to be detected comprises a checking pipeline, a plurality of pipelines at the positions where the leakage holes are opened and a plurality of pipelines at the diameter where the leakage holes are opened which are connected in parallel;
checking the pipeline, and simulating the condition of the pipeline without leakage;
the pipeline at the opening position of the opening leakage hole is used for simulating the pipeline leakage conditions at different opening positions;
the pipeline with the opening diameter of the opening leakage hole is used for simulating the pipeline leakage conditions with different opening diameters.
As a further improvement of the above technical solution:
the compressed gas inlet section comprises an air compressor, an air bottle, an input pressure gauge and an adjustable pressure reducing valve which are connected in sequence;
the air compressor stores compressed gas which is compressed and converted into a gas cylinder;
the gas cylinder stores compressed gas and is controlled by a stop valve switch at an output port of the gas cylinder;
the adjustable pressure reducing valve is used for adjusting the pressure of compressed gas output by the gas cylinder and inputting the pressure into a compressed air inflow port of the pipeline leakage experiment section;
the first safety valve is connected to the gas cylinder in a bypassing manner and used for controlling the safety pressure of the gas cylinder;
and the input pressure gauge is used for monitoring the output pressure of the gas cylinder and is used as a basis for adjusting the pressure of the adjustable pressure reducing valve.
The pipeline leakage experiment section also comprises an input stop valve connected with a compressed air inlet; the input stop valve is connected in series with a total-entering metal pipe float flowmeter and a total-entering pressure gauge;
the inlet of the compressed air passes through an input stop valve, a total inlet metal pipe float flowmeter and a total inlet pressure gauge and is connected with an input main pipe and an output main pipe; the pipeline to be detected is connected in parallel between the input main pipe and the output main pipe;
a first stop valve and a second stop valve are respectively arranged at two ends of each pipeline to be detected;
taking the first stop valve as a reference, wherein the distance between the pipeline at the opening position of each leakage opening hole and the corresponding first stop valve is different;
the output main pipe is connected with gas receiving equipment of an external compressed gas discharge section through a main output metal pipe float flowmeter, a main output pressure gauge and an output stop valve which are connected in series.
The pipeline at the position of the opening of the leakage opening hole and the pipeline with the diameter of the opening of the leakage opening hole are provided with a detection module;
the detection module comprises acoustic emission sensors arranged at two ends of a pipeline at the position of the opened hole of the leakage opening and/or a pipeline with the diameter of the opened hole of the leakage opening, and the acoustic emission sensors collect elastic wave signals generated by compressed gas on the pipe wall through a pipeline;
the output end of the acoustic emission sensor is connected with a signal amplifier for signal preprocessing; the output end of the signal amplifier is connected with an acoustic detection transmitter, the acoustic detection transmitter is matched with an acoustic detection receiver, the acoustic detection receiver is connected with a processor, and the processor analyzes the characteristic quantity of the signal and judges the pipeline leakage.
A compressed gas pipeline detection demonstration test bed for an underwater navigation carrier comprises a pipeline leakage test section, a pipeline detection section and a pipeline detection section, wherein the pipeline detection section is used for detecting the damage and leakage of a pipe wall of a pipeline to be detected for the underwater navigation carrier; a pressure gauge and a flowmeter are arranged at two ends of the pipeline to be detected;
the pipeline leakage experiment section is provided with a testing device for detecting the pipeline to be detected and/or an upper pipe and lower pipe device for arranging the pipeline to be detected on and off.
As a further improvement of the above technical solution:
the pipe loading and unloading device comprises indexing wheel discs which are coaxially arranged in pairs and are provided with clamping grooves, and an upper pipe loading station, a pipe feeding station, a lower rotating station and a pipe unloading station are sequentially distributed on the indexing wheel discs;
an upper pipe guide arc plate and a lower pipe guide arc plate are arranged below the indexing wheel disc;
a pipeline to be detected falls into a pipe feeding station positioned right above the indexing wheel disc, and two ends of the pipeline to be detected are clamped in the clamping grooves of the indexing wheel disc;
the pipe feeding station is positioned on one horizontal side of the indexing wheel disc and is used for outputting or placing a pipeline to be detected in the clamping groove into the detected pipeline to be detected;
the lower rotating station is positioned right below the indexing wheel disc and positioned on the upper and lower pipe guide arc plates; the indexing wheel disc shifts the pipeline to be detected to slide or roll forwards on the upper and lower pipe guide arc plates;
the pipe outlet station is located on the other side of the horizontal direction of the index wheel disc and used for outputting the detected pipeline to be detected in the lower rotating station clamping groove.
The testing device comprises adjustable bases which are arranged in pairs to meet the requirements of pipelines to be tested with different lengths;
a test supporting shaft seat is arranged on the adjustable base, and a test indexing wheel shaft is horizontally and rotatably arranged on the test supporting shaft seat;
the test indexing wheel shaft is provided with an indexing wheel disc;
a connecting station is arranged on one horizontal side of the indexing wheel disc to receive the sent pipeline to be detected or send the detected pipeline to be detected;
a clamping station is arranged right above the indexing wheel disc so as to mount and fix the pipeline to be detected;
a testing station is arranged on the other horizontal side of the indexing wheel disc so as to perform inflation testing on a pipeline to be detected;
a disassembly station is arranged right below the indexing wheel disc so as to disassemble the pipeline to be detected from the indexing wheel disc; and a test guide arc plate is arranged right below the disassembly station to bear the pipeline to be detected falling from the disassembly station, and the indexing wheel disc stirs the pipeline to be detected to slide or roll on the test guide arc plate to move forward to the connection station.
A clamping groove of an indexing wheel disc of the testing device is provided with an occluded bell mouth for the inlet and outlet of a pipeline to be detected;
a clamping lifting rack is vertically arranged at the clamping station and is positioned at the output side of the occlusion bell mouth; a swing gear shaft is rotated at the output side of the meshing bell mouth, and the clamping lifting rack is meshed with the swing gear shaft; the swing gear shaft is also provided with a one-way ratchet wheel which is positioned on the other end surface of the indexing wheel disc, and one side of the one-way ratchet wheel is provided with a limiting elastic pawl to be meshed with the indexing wheel disc in a one-way manner; a pawl opening shifting arm is arranged on the limiting elastic pawl;
the root part of a swing rotating arm is arranged on a swing gear shaft, a swing lower pressing clamping seat is arranged at the lower end of the middle part of the swing rotating arm, and an arc-shaped pressing opening is formed at the lower end of the swing lower pressing clamping seat; the two sides of the arc-shaped pressure opening are respectively provided with a clamping seat long arc side and a clamping seat short arc side so as to be convenient to ride on a pipeline to be detected, and a guide inclined plane is arranged at the cantilever end of the swing rotating arm; a downward pressing elastic wedge driven by a spring is arranged on one side of the engaged horn mouth, a wedge opening deflector rod is arranged on the downward pressing elastic wedge and is vertical to the indexing wheel disc, and a clamping swinging deflector arm is arranged on one side of the wedge opening deflector rod to deflect the wedge opening deflector rod;
the clamping lifting rack is lowered to the output side of the occlusion bell mouth in advance; the occlusion bell mouth supports the pipeline to be detected to a clamping station, and the swinging gear shaft is meshed with the clamping lifting rack; the clamping lifting rack rises to drive the swinging gear shaft to swing, so that the arc-shaped pressing opening of the swinging pressing clamping seat is positioned on a pipeline to be detected; the swing shifting arm is clamped, the shifting rod is opened by shifting the wedge, so that the downward pressing elastic wedge retracts, and the cantilever end of the swing rotating arm passes through; the clamping swing shifting arm leaves, the wedge is opened, the shifting rod resets under the action of the spring, and the elastic wedge is pressed downwards to be fixed at the cantilever end of the swing rotating arm;
a first connecting pipeline and a second connecting pipeline are respectively arranged on two sides of the occluded bell mouth of the testing station; the first connecting pipeline and the second connecting pipeline are respectively provided with a manipulator clamp and used for approaching to a sealed or far away from a port for replacing a pipeline to be detected; the connecting end surfaces of the first connecting pipeline and the second connecting pipeline are provided with pipeline positioning taper sleeves so as to be inserted into the port of the pipeline to be detected to realize installation positioning and guiding;
the disassembling station is provided with a first opening rotating arm and a second opening rotating arm;
the first opening rotating arm is disassembled to correspond to the pawl opening shifting arm, and the second opening rotating arm is disassembled to correspond to the wedge opening shifting rod;
when the occluded bell mouth carries a pipeline to be detected to a disassembly station, the first opening rotating arm is disassembled to stir the pawl to open the shifting arm, so that the limiting elastic pawl overcomes the spring force to separate from the one-way ratchet wheel, and meanwhile, the second opening rotating arm is disassembled to stir the wedge to open the shifting rod, so that the pressing elastic wedge retracts to separate from the cantilever end of the swinging rotating arm; under the action of self weight, the clamping swing poking arm swings downwards, so that an arc-shaped pressure port of the swing lower pressure clamping seat is separated from the pipeline to be detected; the pipeline to be detected falls onto the test guide arc plate; under the drive of the occluded bell mouth, the pipeline to be detected slides or rolls to move forward to the linking station.
A compressed gas pipeline detection demonstration test method of an underwater navigation carrier detects and demonstrates a test bed by means of a compressed gas pipeline of the underwater navigation carrier; it comprises the following steps;
firstly, an air compressor is used for compressing air to convert the air into required compressed gas and storing the compressed gas into a gas cylinder; then, the gas cylinder can store compressed gas, the switch of the gas cylinder is controlled by a stop valve, and the compressed gas is conveyed to an experimental section by a pipeline after the pressure of the compressed gas is adjusted by a pressure adjusting valve; secondly, the flowmeter measures and displays the flow of inlet air reaching the experimental section through the pipeline in the working process, and the pressure gauge measures and displays the initial pressure of inlet air reaching the experimental section through the pipeline in the working process; thirdly, controlling the gas supply switch of the segmented pipeline through the detachable stop valve of each segmented head, wherein the middle of the experimental pipeline is a common intact pipeline to simulate the condition of the pipeline without leakage, the upper half pipeline simulates the condition of pipeline leakage at different opening positions, and the lower half pipeline simulates the condition of pipeline leakage at different opening diameters;
and then, starting the simulated marine compressed gas by using the gas equipment to supply gas to the user, detecting the influence on the leakage condition, closing the simulated pipeline by using the gas equipment to simulate the trace leakage condition of the compressed gas in a pressurized state, preprocessing the signal of the compressed gas passing through the pipeline by using the acoustic emission sensor, sending the signal to the acoustic emission processor after the signal is preprocessed by using the power amplifier, and analyzing the characteristic quantity of the signal by using the acoustic emission processor to judge the pipeline leakage.
A compressed gas pipeline detection demonstration test method for an underwater navigation carrier is a compressed gas pipeline detection demonstration test bed for the underwater navigation carrier, and comprises the following steps:
step one, feeding a pipe to a testing device through a pipe feeding and discharging device;
step two, completing the test through the test device;
step three, the testing device sends the pipeline to be detected back to the upper pipe arranging device;
in step one, rotating by means of an indexing wheel; firstly, a pipeline to be detected falls into a pipe feeding station positioned right above the indexing wheel disc, and two ends of the pipeline to be detected are clamped in clamping grooves of the indexing wheel disc; then, feeding the pipeline to be detected in the clamping groove into a connection station of the testing device at a pipe feeding station;
in step two, rotating by means of the indexing wheel; firstly, adjusting the position of an adjustable base according to a pipeline to be detected; then, receiving the fed pipeline to be detected at a connecting station;
secondly, the clamping lifting rack is lowered to the output side of the occlusion bell mouth in advance, the occlusion bell mouth carries the pipeline to be detected to a clamping station, and the swinging gear shaft is meshed with the clamping lifting rack; the clamping lifting rack rises to drive the swinging gear shaft to swing, so that the arc-shaped pressing opening of the swinging pressing clamping seat is positioned on a pipeline to be detected; the swing shifting arm is clamped, the shifting rod is opened by shifting the wedge, so that the downward pressing elastic wedge retracts, and the cantilever end of the swing rotating arm passes through; the clamping swing shifting arm leaves, the wedge is opened, the shifting rod resets under the action of the spring, and the elastic wedge is pressed downwards to be fixed at the cantilever end of the swing rotating arm; the clamping station is used for installing and fixing the pipeline to be detected,
thirdly, at the testing station, the first connecting pipeline and the second connecting pipeline are respectively clamped by a manipulator to be close to or far away from the port of the pipeline to be tested, and are inserted into the port of the pipeline to be tested through a pipeline positioning taper sleeve to realize installation, positioning and guiding;
then, at the disassembly station, by disassembling the first opening tumbler and disassembling the second opening tumbler; when the occluded bell mouth carries a pipeline to be detected to a disassembly station, the first opening rotating arm is disassembled to stir the pawl to open the shifting arm, so that the limiting elastic pawl overcomes the spring force to separate from the one-way ratchet wheel, and meanwhile, the second opening rotating arm is disassembled to stir the wedge to open the shifting rod, so that the pressing elastic wedge retracts to separate from the cantilever end of the swinging rotating arm; under the action of self weight, the clamping swing poking arm swings downwards, so that an arc-shaped pressure port of the swing lower pressure clamping seat is separated from the pipeline to be detected; the pipeline to be detected falls onto the test guide arc plate; under the drive of the occluded bell mouth, the pipeline to be detected slides or rolls to move forward to a joining station;
finally, delivering the detected pipeline to be detected at the connection station;
in the third step, firstly, the pipeline to be detected after detection of the connection station of the testing device is fed into the pipe feeding station; then, at a lower rotating station, the indexing wheel disc shifts the pipeline to be detected to slide or roll on the upper and lower pipe guide arc plates to move forwards; and secondly, outputting the detected pipeline to be detected in the lower turning station clamping groove at the pipe outlet station.
The invention has the advantages of reasonable design, low cost, firmness, durability, safety, reliability, simple operation, time and labor saving, capital saving, compact structure and convenient use. The invention comprehensively considers the main influence factors of the damage and the leakage of the pipe wall of the compressed gas pipeline, can realize the experimental simulation and the detection of the pipeline leakage caused by the factors, can utilize the acoustic emission detection device of the platform to carry out the comparative analysis and the teaching and scientific research of the ship compressed gas leakage detection, and can also adopt other detection technologies to carry out the experiment on the platform. The platform is low in design cost, can be repeatedly used, and can also be used for replacing and customizing pipelines according to special requirements. The experiment teaching and scientific research for detecting the pipeline leakage of the ship compressed gas system by using the acoustic emission technology is basically satisfied.
Drawings
Fig. 1 is a schematic diagram of the use structure of the invention.
Fig. 2 is a schematic structural diagram of the present invention.
FIG. 3 is a schematic view of the automatic top tube configuration of the present invention.
FIG. 4 is a schematic diagram of the test element configuration of the present invention.
FIG. 5 is a partial structural schematic view of a test part of the present invention.
Wherein: 1. a detection module; 2. a signal amplifier; 3. an acoustic emission sensor; 4. an acoustic detection transmitter; 5. a compressed air flow inlet; 6. inputting a stop valve; 7. a total inlet metal tube float flow meter; 8. entering a pressure gauge; 9. a total output metal tube float flow meter; 10. a total output pressure gauge; 11. a gas using device; 12. an output stop valve; 13. an input header pipe; 14. a first shut-off valve; 15. a pipeline to be detected; 16. a second stop valve; 17. an output header pipe; 22. checking the pipeline; 26. air; 27. an air compressor; 28. a gas cylinder; 29. a first safety valve; 30. inputting a pressure gauge; 31. an adjustable pressure reducing valve; 32. opening a pipeline at the position of the hole of the leakage hole; 33. opening a diameter pipeline with a leakage hole; 41. a tube loading and unloading device; 42. a testing device; 43. an indexing wheel disc; 44. a pipe feeding station; 45. a pipe feeding station; 46. downwards rotating a station; 47. a pipe exit station; 48. the upper and lower pipes guide the arc plate; 49. an adjustable base; 50. testing the supporting shaft seat; 51. testing the indexing wheel shaft; 52. connecting stations; 53. a card installing station; 54. a test station; 55. disassembling the station; 56. testing the guide arc plate; 57. occluding the horn mouth; 58. installing and clamping a lifting rack; 59. a swing gear shaft; 60. swinging the rotating arm; 61. swinging and pressing the clamping seat; 62. the long arc side of the clamping seat; 63. the short arc side of the clamping seat; 64. pressing down the elastic wedge; 65. the wedge opens the deflector rod; 66. clamping the swinging shifting arm; 67. a one-way ratchet; 68. a limiting elastic pawl; 69. the pawl opens the toggle arm; 70. a first connecting pipe; 71. a pipeline positioning taper sleeve; 72. a second connecting pipe; 73. disassembling the first opening rotating arm; 74. the second opening tumbler is removed.
Detailed Description
Referring to fig. 1-5, the compressed gas pipeline detection demonstration test bed for the underwater navigation carrier of the embodiment includes a compressed gas inlet section, a pipeline leakage experiment section and a compressed gas discharge section which are connected in sequence; the compressed gas inlet section is used for compressing the air 26 into compressed air required by water for the pipeline leakage detection experiment section; a pressure gauge and a flowmeter are arranged at the compressed gas inlet section; a pipeline leakage experiment section for detecting pipeline leakage of the pipeline 15 to be detected used by the underwater navigation carrier; a pressure gauge and a flowmeter are arranged at two ends of the pipeline 15 to be detected; the compressed gas discharge section is connected with the output end of the pipeline leakage experiment section; in the pipeline leakage experiment section, the pipeline 15 to be detected comprises a checking pipeline 22, a plurality of leakage hole opening position pipelines 32 and a plurality of leakage hole opening diameter pipelines 33 which are connected in parallel; a check pipeline 22 for simulating a pipeline condition without leakage; the pipeline 32 at the opening position of the opening leakage hole is used for simulating the pipeline leakage condition at different opening positions; and the pipeline 33 with the opening diameter of the leakage hole is used for simulating the leakage condition of pipelines with different opening diameters.
The compressed gas inlet section comprises an air compressor 27, a gas cylinder 28, an input pressure gauge 30 and an adjustable pressure reducing valve 31 which are connected in sequence; an air compressor 27 for storing the compressed gas converted by compression into a gas cylinder 28; a gas cylinder 28 for storing compressed gas and controlled by a stop valve switch at an output port thereof; the adjustable pressure reducing valve 31 is used for adjusting the pressure of the compressed gas output by the gas bottle 28 and inputting the pressure into the compressed air inlet 5 of the pipeline leakage experiment section; a first relief valve 29, which is connected to the gas cylinder 28 and controls the relief pressure of the gas cylinder; an input pressure gauge 30 is provided for monitoring the output pressure of the gas cylinder 28 as a basis for setting the pressure by the adjustable pressure reducing valve 31.
The pipeline leakage experiment section also comprises an input stop valve 6 connected with the compressed air inflow port 5; the input stop valve 6 is connected in series with a total inlet metal pipe float flowmeter 7 and a total inlet pressure gauge 8; the compressed air inflow port 5 is connected with an input header pipe 13 and an output header pipe 17 through an input stop valve 6, a total inlet metal pipe float flowmeter 7 and a total inlet pressure gauge 8; the pipeline 15 to be detected is connected in parallel between the input header pipe 13 and the output header pipe 17; a first stop valve 14 and a second stop valve 16 are respectively arranged at two ends of each pipeline 15 to be detected; the distance of each open-drain hole opening position pipe 32 from the corresponding first stop valve 14 is different with the first stop valve 14 as a reference; the output main pipe 17 is connected with a gas receiving device 11 of an external compressed gas discharge section through a total output metal pipe float flowmeter 9, a total output pressure gauge 10 and an output stop valve 12 which are connected in series.
The pipeline 32 at the position of the opening of the leakage hole and the pipeline 33 with the diameter of the opening of the leakage hole are provided with the detection module 1; the detection module 1 comprises acoustic emission sensors 3 which are arranged at two ends of a pipeline 32 at the position of the opened hole and/or a pipeline 33 at the diameter of the opened hole, and the acoustic emission sensors 3 collect signals generated by compressed gas on the pipe wall through a pipeline; the output end of the acoustic emission sensor 3 is connected with a signal amplifier 2 for signal preprocessing; the output end of the signal amplifier 2 is connected with an acoustic detection transmitter 4, the acoustic detection transmitter 4 is matched with an acoustic detection receiver, the acoustic detection receiver is connected with a processor, and the processor analyzes the characteristic quantity of the signal to judge the leakage of the pipeline.
As a specific application embodiment, the air compressor is used for compressing air to convert the air into required compressed gas and storing the compressed gas into the air bottle; the gas cylinder can store compressed gas, is controlled to be opened and closed by the stop valve, and is conveyed to an experimental section by a pipeline after the pressure of the gas cylinder is adjusted by the pressure adjusting valve; the flow meter is used for measuring and displaying the flow of the inlet air which reaches the experimental section through the pipeline during the working process. The pipeline leakage experiment section consists of a front end main stop valve, a pressure gauge, a segmented head-tail detachable stop valve, a rear end main stop valve, a pipeline and accessories. The air inlet pipeline front end main stop valve is used for controlling a main switch for air supply of all pipelines; the pressure gauge is used for measuring and displaying the initial pressure of the air inlet reaching the experimental section through the pipeline in the working process; each section head detachable stop valve is used for controlling the section pipeline gas supply switch; the middle of the experimental pipeline is a common intact pipeline which is used for simulating the condition of the pipeline without leakage;
the upper half part of pipelines are used for simulating the pipeline leakage conditions at different opening positions, the opening diameters are all 0.001m, and the opening diameters are 0.9m, 0.7m, 0.3m and 0.1m from top to bottom in sequence from the segmented pipeline stop valve;
the latter half pipeline is used for simulating the pipeline of different trompil diameters and leaks the condition outward, and the trompil position is apart from each 0.5m of head and the tail segmentation pipeline stop valve, and top-down trompil diameter is 0.001m, 0.0015m, 0.002m, 0.0025m and 0.003m in proper order, and wherein, trompil diameter 0.001m still can be used to the experiment of the different trompil positions of first half.
In addition, the design of head and the tail segmentation stop valve is detachable, conveniently designs other leakage conditions and carries out the pipeline and change the dismouting. The compressed gas discharge section comprises a flowmeter, gas equipment, a pipeline and accessories. The tail section flowmeter is used for measuring and displaying the gas flow used by gas equipment passing through a pipeline in the working process along the gas flow direction;
the gas utilization equipment is opened to simulate the influence on the leakage condition when the compressed gas for the ship is supplied to a user, and the gas utilization equipment is closed to simulate the micro leakage condition of the compressed gas under the pressurized state of a pipeline. The invention can effectively simulate the leakage condition of the marine compressed gas pipeline under the laboratory condition, provides the simulation and demonstration of leakage detection, can be repeatedly used, and can be conveniently disassembled and assembled for all branch pipelines, thereby facilitating the fault setting of other pipelines. The acoustic emission detection technology can be used for detecting pipeline leakage and positioning leakage points. In the figure, two sides of a leakage hole of an experimental pipeline are respectively provided with an acoustic emission sensor 3, signals generated by compressed gas passing through the pipeline are sent to an acoustic emission processor after being preprocessed by a power amplifier through the sensors, and pipeline leakage judgment is carried out by further analyzing the characteristic quantity of the signals. The experimental result can further verify the rationality and the practicability of the experiment table.
As shown in fig. 1, the compressed gas pipeline detection demonstration test bed for the underwater navigation carrier of the embodiment includes a pipeline leakage experiment section, which is used for detecting the damage and leakage of the pipe wall of the pipeline 15 to be detected used by the underwater navigation carrier; a pressure gauge and a flowmeter are arranged at two ends of the pipeline 15 to be detected;
the pipeline leakage experiment section is provided with a testing device 42 for detecting the pipeline 15 to be detected and/or an upper pipe and lower pipe device 41 for arranging the pipeline 15 to be detected up and down.
The upper and lower pipe devices 41 comprise indexing wheel discs 43 which are coaxially arranged in pairs and are provided with clamping grooves, and an upper pipe station 44, a pipe feeding station 45, a lower rotating station 46 and a pipe outlet station 47 are sequentially distributed on the indexing wheel discs 43;
an upper and lower pipe guide arc plate 48 is arranged below the indexing wheel disc 43;
the pipeline 15 to be detected falls into the upper pipe station 44 positioned right above the indexing wheel disc 43, and two ends of the pipeline are clamped in the clamping grooves of the indexing wheel disc 43;
the pipe feeding station 45 is positioned on one horizontal side of the indexing wheel disc 43 and is used for outputting or placing the pipeline 15 to be detected in the clamping groove into the detected pipeline 15 to be detected;
the lower turning station 46 is positioned right below the indexing wheel disc 43 and on the upper and lower pipe guide arc plates 48; the indexing wheel disc 43 shifts the pipeline 15 to be detected to slide or roll on the upper and lower pipe guide arc plates 48;
the pipe outlet station 47 is located on the other horizontal side of the index wheel disc 43 and is used for outputting the detected pipeline 15 to be detected in the clamping groove of the lower rotating station 46.
The testing device 42 comprises adjustable bases 49 arranged in pairs to satisfy different lengths of pipelines 15 to be tested;
a testing supporting shaft seat 50 is arranged on the adjustable base 49, and a testing indexing wheel shaft 51 is horizontally and rotatably arranged on the testing supporting shaft seat 50;
the test indexing wheel shaft 51 has an indexing wheel disc 43;
a joining station 52 is arranged on one horizontal side of the indexing wheel disc 43 to receive the fed pipeline 15 to be detected or send out the detected pipeline 15 to be detected;
a clamping station 53 is arranged right above the indexing wheel disc 43 to mount and fix the pipeline 15 to be detected;
a testing station 54 is arranged on the other horizontal side of the indexing wheel disc 43 to perform inflation testing on the pipeline 15 to be detected;
a disassembling station 55 is arranged right below the indexing wheel disc 43 to disassemble the pipeline 15 to be detected from the indexing wheel disc 43; a test guide arc plate 56 is arranged right below the disassembling station 55 to bear the pipeline 15 to be detected falling from the disassembling station 55, and the indexing wheel disc 43 stirs the pipeline 15 to be detected to slide or roll on the test guide arc plate 56 to move to the connecting station 52;
the clamping groove of the indexing wheel disc 43 of the testing device 42 is provided with a meshing bell mouth 57 for the inlet and outlet of the pipeline 15 to be detected;
a clamping lifting rack 58 is vertically arranged at the clamping station 53 and is positioned at the output side of the occlusion bell mouth 57; a swinging gear shaft 59 is rotated at the output side of the meshing bell mouth 57, and the clamping lifting rack 58 is meshed with the swinging gear shaft 59; the swing gear shaft 59 is also provided with a one-way ratchet wheel 67 which is positioned on the other end surface of the indexing wheel disc 43, and one side of the one-way ratchet wheel 67 is provided with a limiting elastic pawl 68 so as to be meshed with the indexing wheel disc 43 in a one-way manner; a pawl opening toggle arm 69 is arranged on the limit elastic pawl 68;
the root part of a swing rotating arm 60 is arranged on a swing gear shaft 59, a swing lower pressing clamping seat 61 is arranged at the lower end of the middle part of the swing rotating arm 60, and an arc-shaped pressing opening is formed at the lower end of the swing lower pressing clamping seat 61; the two sides of the arc-shaped pressure opening are respectively provided with a clamping seat long arc side 62 and a clamping seat short arc side 63 so as to be convenient to ride on the pipeline 15 to be detected, and the cantilever end of the swing rotating arm 60 is provided with a guide inclined plane; a downward pressing elastic wedge 64 driven by a spring is arranged on one side of the engagement bell mouth 57, a wedge opening deflector rod 65 which is perpendicular to the indexing wheel disc 43 is arranged on the downward pressing elastic wedge 64, and a clamping swinging deflector arm 66 is arranged on one side of the wedge opening deflector rod 65 so as to deflect the wedge opening deflector rod 65;
the card-loading lifting rack 58 is lowered to the output side of the occlusion bell mouth 57 in advance; the occlusion bell mouth 57 carries the pipeline 15 to be detected to the clamping station 53, and the swinging gear shaft 59 is meshed with the clamping lifting rack 58; the clamping lifting rack 58 ascends to drive the swinging gear shaft 59 to swing, so that the arc-shaped pressure port of the swinging lower pressure clamping seat 61 is positioned on the pipeline 15 to be detected; the swing shifting arm 66 is clamped, the shifting rod 65 is opened by shifting the wedge, so that the downward pressing elastic wedge 64 retracts, and the cantilever end of the swing rotating arm 60 passes through; the clamping swing shifting arm 66 leaves, the wedge opening shifting rod 65 resets under the action of a spring, and the downward pressing elastic wedge 64 presses the cantilever end of the swing rotating arm 60 to be fixed;
at the testing station 54, a first connecting pipe 70 and a second connecting pipe 72 are respectively arranged at two sides of the occlusion bell mouth 57; the first connecting pipe 70 and the second connecting pipe 72 are respectively provided with a manipulator clamp for approaching to the sealing or leaving from the port of the pipeline 15 to be detected; the connecting end surfaces of the first connecting pipeline 70 and the second connecting pipeline 72 are provided with pipeline positioning taper sleeves 71 so as to be inserted into the ports of the pipelines 15 to be detected to realize installation, positioning and guiding;
in the disassembly station 55, there are a first opening tumbler 73 and a second opening tumbler 74;
the first opening swivel arm 73 is detached to correspond to the pawl opening toggle arm 69, and the second opening swivel arm 74 is detached to correspond to the wedge opening toggle 65;
when the occlusion bell mouth 57 holds the pipeline 15 to be detected to the detaching station 55, the first opening rotating arm 73 is detached to toggle the pawl opening toggle arm 69, so that the limit elastic pawl 68 overcomes the spring force to separate from the one-way ratchet 67, and simultaneously, the second opening rotating arm 74 is detached to toggle the wedge opening toggle rod 65, so that the lower-pressure elastic wedge 64 retracts to separate from the cantilever end of the swinging rotating arm 60; under the action of self weight, the clamping swing shifting arm 66 swings downwards, so that the arc-shaped pressure port of the swing lower pressure clamping seat 61 is separated from the pipeline 15 to be detected; the pipeline 15 to be tested falls onto the test guide arc plate 56; the pipeline 15 to be tested slides or rolls to advance to the joining station 52 driven by the engagement bell 57.
The compressed gas pipeline detection demonstration test method of the underwater navigation carrier of the embodiment is characterized in that a compressed gas pipeline detection demonstration test bed of the underwater navigation carrier is used; it comprises the following steps;
step one, a pipe is loaded to a testing device 42 through a pipe loading and unloading device 41;
step two, completing the test by the test device 42;
step three, the testing device 42 sends the pipeline 15 to be tested back to the upper pipe arranging device 41;
in step one, rotation is effected by means of the indexing wheel 43; firstly, a pipeline 15 to be detected falls into a pipe feeding station 44 positioned right above an indexing wheel disc 43, and two ends of the pipeline are clamped in clamping grooves of the indexing wheel disc 43; then, feeding the pipeline 15 to be detected in the clamping groove into a connecting station 52 of the testing device 42 at a pipe feeding station 45;
in step two, rotation is effected by means of the indexing wheel 43; firstly, adjusting the position of an adjustable base 49 according to the pipeline 15 to be detected; then, the fed pipeline 15 to be detected is received at the engaging station 52;
secondly, the clamping lifting rack 58 is lowered to the output side of the meshing bell mouth 57 in advance, the meshing bell mouth 57 carries the pipeline 15 to be detected to the clamping station 53, and the swinging gear shaft 59 is meshed with the clamping lifting rack 58; the clamping lifting rack 58 ascends to drive the swinging gear shaft 59 to swing, so that the arc-shaped pressure port of the swinging lower pressure clamping seat 61 is positioned on the pipeline 15 to be detected; the swing shifting arm 66 is clamped, the shifting rod 65 is opened by shifting the wedge, so that the downward pressing elastic wedge 64 retracts, and the cantilever end of the swing rotating arm 60 passes through; the clamping swing shifting arm 66 leaves, the wedge opening shifting rod 65 resets under the action of a spring, and the downward pressing elastic wedge 64 presses the cantilever end of the swing rotating arm 60 to be fixed; the clamping station 53 fixes the pipeline 15 to be detected,
thirdly, at the testing station 54, the first connecting pipeline 70 and the second connecting pipeline 72 are respectively clamped by a manipulator to be close to or far away from the port of the pipeline 15 to be tested, and are inserted into the port of the pipeline 15 to be tested through the pipeline positioning taper sleeve 71 to realize installation, positioning and guiding;
thereafter, in the dismounting station 55, by dismounting the first opening swivel arm 73 and dismounting the second opening swivel arm 74; when the occlusion bell mouth 57 holds the pipeline 15 to be detected to the detaching station 55, the first opening rotating arm 73 is detached to toggle the pawl opening toggle arm 69, so that the limit elastic pawl 68 overcomes the spring force to separate from the one-way ratchet 67, and simultaneously, the second opening rotating arm 74 is detached to toggle the wedge opening toggle rod 65, so that the lower-pressure elastic wedge 64 retracts to separate from the cantilever end of the swinging rotating arm 60; under the action of self weight, the clamping swing shifting arm 66 swings downwards, so that the arc-shaped pressure port of the swing lower pressure clamping seat 61 is separated from the pipeline 15 to be detected; the pipeline 15 to be tested falls onto the test guide arc plate 56; under the drive of the occlusion bell mouth 57, the pipeline 15 to be detected slides or rolls to advance to the joining station 52;
finally, the detected pipeline 15 to be detected is sent out at the joining station 52;
in the third step, firstly, the pipeline 15 to be detected after being detected by the connection station 52 of the testing device 42 is fed into the pipe feeding station 45; then, at the lower turning station 46, the indexing wheel disc 43 shifts the pipeline 15 to be detected to slide or roll on the upper and lower pipe guide arc plates 48 to move forwards; and secondly, outputting the detected pipeline 15 to be detected in the clamping groove of the lower turning station 46 at an outlet pipe station 47.
As a modification of embodiment 1, embodiment 2 realizes automatic completion of upper and lower pipes, mounting and fixing, testing and outputting, and the upper and lower pipe devices 41 and the testing device 42 can be preferably used in combination, and the matching testing components of embodiment 1 are mounted thereon, thereby completing the testing. It utilizes the dead weight to realize opening and shutting and the blanking ingeniously, utilizes the rack to go up and down to realize opening, and design benefit realizes lifting through the arc board. The installation of leading is realized through the slide wedge, and through cassette long arc side 62, cassette short arc side 63 makes things convenient for the quick installation and the dismantlement of pipe material, stirs through the swing arm and has realized that the swing is opened. The press-down clamping base 61 is swung to realize press-down positioning.
The present invention has been described in sufficient detail for clarity of disclosure and is not exhaustive of the prior art.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a compressed gas pipeline of carrier that sails under water detects demonstration test bench which characterized in that: the device comprises a compressed gas inlet section, a pipeline leakage experiment section and a compressed gas discharge section which are connected in sequence;
a compressed gas inlet section for compressing air (26) into compressed air required for underwater detection
The pipeline leakage experimental section is used; a pressure gauge and a flowmeter are arranged at the compressed gas inlet section;
a pipeline leakage experiment section, which is used for detecting the damage and leakage of the pipe wall of the pipeline (15) to be detected used by the underwater navigation carrier; a pressure gauge and a flowmeter are arranged at two ends of the pipeline (15) to be detected;
the compressed gas discharge section is connected with the output end of the pipeline leakage experiment section;
in the pipeline leakage experiment section, the pipeline (15) to be detected comprises a checking pipeline (22), a plurality of leakage hole opening position pipelines (32) and a plurality of leakage hole opening diameter pipelines (33) which are connected in parallel;
a check line (22) for simulating a leak-free line condition;
the pipeline (32) at the opening position of the opening leakage hole is used for simulating the pipeline leakage condition at different opening positions;
and the pipeline (33) with the opening diameter of the opening leakage hole is used for simulating the pipeline leakage condition with different opening diameters.
2. The compressed gas pipeline detection demonstration test bed for underwater navigation carriers according to claim 1, characterized in that:
the compressed gas inlet section comprises an air compressor (27), a gas cylinder (28), an input pressure gauge (30) and an adjustable pressure reducing valve (31) which are connected in sequence;
an air compressor (27) for storing the compressed gas converted by compression into a gas cylinder (28);
a gas cylinder (28) for storing compressed gas and controlled by a stop valve switch at an output port thereof;
the adjustable pressure reducing valve (31) is used for adjusting the pressure of the compressed gas output by the gas cylinder (28) and inputting the pressure into a compressed air inflow port (5) of the pipeline leakage experiment section;
a first safety valve (29) which is connected to the gas cylinder (28) in a bypassing manner and is used for controlling the safety pressure of the gas cylinder;
and the input pressure gauge (30) is used for monitoring the output pressure of the gas cylinder (28) and used as the basis for the set pressure of the adjustable pressure reducing valve (31).
3. The compressed gas pipeline detection demonstration test bed for underwater navigation carriers according to claim 2, characterized in that:
the pipeline leakage experiment section also comprises an input stop valve (6) connected with the compressed air inflow port (5); the input stop valve (6) is connected in series with a total inlet metal pipe float flowmeter (7) and a total inlet pressure gauge (8);
the compressed air inflow port (5) is connected with an input header pipe (13) and an output header pipe (17) through an input stop valve (6), a total inlet metal pipe float flowmeter (7) and a total inlet pressure gauge (8); the pipeline (15) to be detected is connected in parallel between the input main pipe (13) and the output main pipe (17);
two ends of each pipeline (15) to be detected are respectively provided with a first stop valve (14) and a second stop valve (16);
the distances between the pipeline (32) at the opening position of each opening and leakage hole and the corresponding first stop valve (14) are different by taking the first stop valve (14) as a reference;
the output main pipe (17) is connected with a gas receiving device (11) of an external compressed gas discharge section through a total output metal pipe float flowmeter (9), a total output pressure gauge (10) and an output stop valve (12) which are connected in series.
4. The compressed gas pipeline detection demonstration test bed for underwater navigation carriers according to claim 1, characterized in that: the pipeline (32) at the position of the opening of the leakage hole and the pipeline (33) with the diameter of the opening of the leakage hole are provided with a detection module (1);
the detection module (1) comprises acoustic emission sensors (3) which are arranged at two ends of a pipeline (32) at the position of the opened hole of the leakage hole and/or a pipeline (33) with the diameter of the opened hole of the leakage hole, and the acoustic emission sensors (3) collect elastic wave signals generated by compressed gas to the pipe wall through a pipeline;
the output end of the acoustic emission sensor (3) is connected with a signal amplifier (2) for signal preprocessing; the output end of the signal amplifier (2) is connected with an acoustic detection transmitter (4), the acoustic detection transmitter (4) is matched with an acoustic detection receiver, the acoustic detection receiver is connected with a processor, and the processor analyzes the characteristic quantity of the signal to judge the leakage of the pipeline.
5. The utility model provides a compressed gas pipeline of carrier that sails under water detects demonstration test bench which characterized in that: the method comprises a pipeline leakage experiment section, wherein the pipeline leakage experiment section is used for detecting the damage and leakage of the pipe wall of a pipeline (15) to be detected for an underwater navigation carrier; a pressure gauge and a flowmeter are arranged at two ends of the pipeline (15) to be detected;
the pipeline leakage experiment section is provided with a testing device (42) for detecting the pipeline (15) to be detected and/or an upper pipe and lower pipe device (41) for arranging the pipeline (15) to be detected up and down.
6. The compressed gas pipeline detection demonstration test bed for underwater navigation carriers according to claim 5, characterized in that: the upper and lower pipe devices (41) comprise indexing wheel discs (43) which are coaxially arranged in pairs and are provided with clamping grooves, and an upper pipe station (44), a pipe feeding station (45), a lower rotating station (46) and a pipe outlet station (47) are sequentially distributed on the indexing wheel discs (43);
an upper pipe guide arc plate and a lower pipe guide arc plate (48) are arranged below the indexing wheel disc (43);
a pipeline (15) to be detected falls into a pipe feeding station (44) positioned right above the indexing wheel disc (43), and two ends of the pipeline are clamped in clamping grooves of the indexing wheel disc (43);
the pipe feeding station (45) is positioned on one horizontal side of the indexing wheel disc (43) and is used for outputting or placing the pipeline (15) to be detected in the clamping groove into the detected pipeline (15) to be detected;
the lower turning station (46) is positioned right below the indexing wheel disc (43) and positioned on the upper and lower pipe guide arc plates (48); the indexing wheel disc (43) pulls the pipeline (15) to be detected to slide or roll forwards on the upper and lower pipe guide arc plates (48);
the pipe outlet station (47) is positioned on the other horizontal side of the index wheel disc (43) and used for outputting the pipeline (15) to be detected after detection in the clamping groove of the lower rotating station (46).
7. The compressed gas pipeline detection demonstration test bed for underwater navigation carriers according to claim 5, characterized in that: the testing device (42) comprises adjustable bases (49) which are arranged in pairs to meet the requirements of pipelines (15) to be tested with different lengths;
a testing supporting shaft seat (50) is arranged on the adjustable base (49), and a testing indexing wheel shaft (51) is horizontally and rotatably arranged on the testing supporting shaft seat (50);
the test indexing wheel shaft (51) is provided with an indexing wheel disc (43);
a joining station (52) is arranged on one horizontal side of the indexing wheel disc (43) to receive the pipeline (15) to be detected which is sent in or send out the pipeline (15) to be detected which is detected;
a clamping station (53) is arranged right above the indexing wheel disc (43) to mount and fix the pipeline (15) to be detected;
a testing station (54) is arranged on the other horizontal side of the indexing wheel disc (43) to carry out inflation testing on the pipeline (15) to be tested;
a dismounting station (55) is arranged right below the indexing wheel disc (43) so as to dismount the pipeline (15) to be detected from the indexing wheel disc (43); a test guide arc plate (56) is arranged under the disassembling station (55) to bear the pipeline (15) to be detected falling from the disassembling station (55), and the indexing wheel disc (43) stirs the pipeline (15) to be detected to slide or roll on the test guide arc plate (56) to move to the connecting station (52).
8. The compressed gas pipeline detection demonstration test bed for underwater navigation carriers according to claim 5, characterized in that: a clamping groove of an indexing wheel disc (43) of the testing device (42) is provided with a meshing bell mouth (57) for the inlet and outlet of the pipeline (15) to be tested;
a clamping lifting rack (58) is vertically arranged at the clamping station (53) and is positioned at the output side of the occlusion bell mouth (57); a swinging gear shaft (59) is rotated at the output side of the meshing bell mouth (57), and a clamping lifting rack (58) is meshed with the swinging gear shaft (59); a one-way ratchet wheel (67) is also arranged on the swinging gear shaft (59) and is positioned on the other end surface of the indexing wheel disc (43), and a limiting elastic pawl (68) is arranged on one side of the one-way ratchet wheel (67) so as to be meshed with the indexing wheel disc (43) in a one-way manner; a pawl opening toggle arm (69) is arranged on the limit elastic pawl (68);
the root of a swing rotating arm (60) is arranged on a swing gear shaft (59), a swing lower pressing clamping seat (61) is arranged at the lower end of the middle part of the swing rotating arm (60), and an arc-shaped pressing opening is formed at the lower end of the swing lower pressing clamping seat (61); a clamping seat long arc side (62) and a clamping seat short arc side (63) are respectively arranged on two sides of the arc-shaped pressure opening so as to be convenient to ride on a pipeline (15) to be detected, and a guide inclined plane is arranged at the cantilever end of the swing rotating arm (60); a downward pressing elastic wedge (64) driven by a spring is arranged on one side, entering the occlusion bell mouth (57), of the downward pressing elastic wedge (64), a wedge opening deflector rod (65) which is perpendicular to the indexing wheel disc (43) is arranged on the downward pressing elastic wedge (64), and a clamping swinging deflector rod (66) is arranged on one side, opening the deflector rod (65), of the wedge, so as to deflect the wedge to open the deflector rod (65);
the clamping lifting rack (58) descends to the output side of the occlusion bell mouth (57) in advance; the occlusion bell mouth (57) carries the pipeline (15) to be detected to a clamping station (53), and the swinging gear shaft (59) is meshed with the clamping lifting rack (58); the clamping lifting rack (58) rises to drive the swinging gear shaft (59) to swing, so that the arc-shaped pressure opening of the swinging lower pressure clamping seat (61) is positioned on the pipeline (15) to be detected; a swing shifting arm (66) is clamped, the shifting rod (65) is opened by shifting the wedge, so that the downward pressing elastic wedge (64) retracts, and the cantilever end of the swing rotating arm (60) passes through; the clamping swing shifting arm (66) leaves, the wedge opening shifting rod (65) resets under the action of a spring, and the downward pressing elastic wedge (64) presses the cantilever end of the swing rotating arm (60) to be fixed;
a first connecting pipeline (70) and a second connecting pipeline (72) are respectively arranged on two sides of the occlusion bell mouth (57) of the testing station (54); the first connecting pipeline (70) and the second connecting pipeline (72) are respectively provided with a manipulator clamp and used for approaching to a sealed or far away from a port for replacing the pipeline (15) to be detected; the connecting end surfaces of the first connecting pipeline (70) and the second connecting pipeline (72) are provided with pipeline positioning taper sleeves (71) so as to be inserted into the ports of the pipelines (15) to be detected to realize installation, positioning and guiding;
a dismounting station (55) provided with a first opening rotating arm (73) and a second opening rotating arm (74);
the first opening rotating arm (73) is disassembled to correspond to the pawl opening shifting arm (69), and the second opening rotating arm (74) is disassembled to correspond to the wedge opening shifting rod (65);
when the occlusion bell mouth (57) supports the pipeline (15) to be detected to a disassembly station (55), a first opening rotating arm (73) is disassembled to toggle a pawl opening toggle arm (69) so that a limiting elastic pawl (68) overcomes the spring force to separate from a one-way ratchet wheel (67), and meanwhile, a second opening rotating arm (74) is disassembled to toggle a wedge opening toggle rod (65) so that a downward pressing elastic wedge (64) retracts to separate from the cantilever end of a swinging rotating arm (60); under the action of self weight, the clamping swing shifting arm (66) swings downwards, so that the arc-shaped pressure port of the swing lower pressure clamping seat (61) is separated from the pipeline (15) to be detected; the pipeline (15) to be detected falls onto the test guide arc plate (56); the pipeline (15) to be detected slides or rolls to advance to the joining station (52) under the driving of the meshing bell mouth (57).
9. A compressed gas pipeline detection demonstration test method for an underwater navigation carrier is characterized by comprising the following steps: detecting and demonstrating a test bed by means of a compressed gas pipeline of an underwater navigation carrier; it comprises the following steps;
firstly, an air compressor is used for compressing air to convert the air into required compressed gas and storing the compressed gas into a gas cylinder; then, the gas cylinder can store compressed gas, the switch of the gas cylinder is controlled by a stop valve, and the compressed gas is conveyed to an experimental section by a pipeline after the pressure of the compressed gas is adjusted by a pressure adjusting valve; secondly, the flowmeter measures and displays the flow of inlet air reaching the experimental section through the pipeline in the working process, and the pressure gauge measures and displays the initial pressure of inlet air reaching the experimental section through the pipeline in the working process; thirdly, controlling the gas supply switch of the segmented pipeline through the detachable stop valve of each segmented head, wherein the middle of the experimental pipeline is a common intact pipeline to simulate the condition of the pipeline without leakage, the upper half pipeline simulates the condition of pipeline leakage at different opening positions, and the lower half pipeline simulates the condition of pipeline leakage at different opening diameters;
and then, starting the simulated marine compressed gas by using the gas equipment to supply gas to the user, detecting the influence on the leakage condition, closing the simulated pipeline by using the gas equipment to simulate the trace leakage condition of the compressed gas in a pressurized state, preprocessing the signal of the compressed gas passing through the pipeline by using the acoustic emission sensor, sending the signal to the acoustic emission processor after the signal is preprocessed by using the power amplifier, and analyzing the characteristic quantity of the signal by using the acoustic emission processor to judge the pipeline leakage.
10. A compressed gas pipeline detection demonstration test method for an underwater navigation carrier is characterized in that a compressed gas pipeline detection demonstration test bed for the underwater navigation carrier is used, and the method comprises the following steps:
step one, a pipe is loaded to a testing device (42) through a pipe loading and unloading device (41);
step two, completing the test through a test device (42);
step three, the testing device (42) sends the pipeline (15) to be detected back to the upper pipe arranging device (41);
in a first step, the indexing wheel (43) is rotated; firstly, a pipeline (15) to be detected falls into a pipe feeding station (44) positioned right above an indexing wheel disc (43), and two ends of the pipeline are clamped in clamping grooves of the indexing wheel disc (43); then, feeding the pipeline (15) to be detected in the clamping groove into a connecting station (52) of the testing device (42) at a pipe feeding station (45);
in a second step, the indexing wheel (43) is rotated; firstly, adjusting the position of an adjustable base (49) according to a pipeline (15) to be detected; then, receiving the fed pipeline (15) to be detected at a connecting station (52);
secondly, the clamping lifting rack (58) descends to the output side of the meshing bell mouth (57) in advance, the meshing bell mouth (57) carries the pipeline (15) to be detected to a clamping station (53), and the swinging gear shaft (59) is meshed with the clamping lifting rack (58); the clamping lifting rack (58) rises to drive the swinging gear shaft (59) to swing, so that the arc-shaped pressure opening of the swinging lower pressure clamping seat (61) is positioned on the pipeline (15) to be detected; a swing shifting arm (66) is clamped, the shifting rod (65) is opened by shifting the wedge, so that the downward pressing elastic wedge (64) retracts, and the cantilever end of the swing rotating arm (60) passes through; the clamping swing shifting arm (66) leaves, the wedge opening shifting rod (65) resets under the action of a spring, and the downward pressing elastic wedge (64) presses the cantilever end of the swing rotating arm (60) to be fixed; the clamping station (53) is used for installing and fixing the pipeline (15) to be detected,
thirdly, at the testing station (54), the first connecting pipeline (70) and the second connecting pipeline (72) are respectively clamped through a manipulator to be close to or far away from the port of the pipeline (15) to be tested, and are inserted into the port of the pipeline (15) to be tested through a pipeline positioning taper sleeve (71) to realize installation, positioning and guiding;
then, in a disassembling station (55), by means of disassembling the first opening rotating arm (73) and the second opening rotating arm (74), when the occlusion bell mouth (57) carries the pipeline (15) to be detected to the disassembling station (55), the first opening rotating arm (73) is disassembled to toggle the pawl opening toggle arm (69), so that the limit elastic pawl (68) overcomes the spring force to separate from the one-way ratchet wheel (67), and meanwhile, the second opening rotating arm (74) is disassembled to toggle the wedge opening toggle rod (65), so that the downward pressing elastic wedge (64) retracts to separate from the cantilever end of the swinging rotating arm (60); under the action of self weight, the clamping swing shifting arm (66) swings downwards, so that the arc-shaped pressure port of the swing lower pressure clamping seat (61) is separated from the pipeline (15) to be detected; the pipeline (15) to be detected falls onto the test guide arc plate (56); under the drive of the occlusion bell mouth (57), the pipeline (15) to be detected slides or rolls to advance to the joining station (52);
finally, the detected pipeline (15) to be detected is sent out at a connecting station (52);
in the third step, firstly, the pipeline (15) to be detected after being detected by the connection station (52) of the testing device (42) is fed into the pipe feeding station (45); then, in a lower rotating station (46), the indexing wheel disc (43) shifts the pipeline (15) to be detected to slide or roll forwards on the upper and lower pipe guide arc plates (48); and secondly, outputting the detected pipeline (15) to be detected in the clamping groove of the lower turning station (46) at an outlet pipe station (47).
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