CN111780964A - Submarine gas valve detection simulation equipment and method - Google Patents
Submarine gas valve detection simulation equipment and method Download PDFInfo
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- CN111780964A CN111780964A CN202010783669.8A CN202010783669A CN111780964A CN 111780964 A CN111780964 A CN 111780964A CN 202010783669 A CN202010783669 A CN 202010783669A CN 111780964 A CN111780964 A CN 111780964A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
Abstract
The invention relates to a submarine gas valve detection simulation device and method, which comprises a valve leakage experiment section, a gas valve leakage experiment section and a gas valve leakage experiment section, wherein the valve leakage experiment section comprises a compressed air inflow port (5) for feeding required compressed air; the input stop valve (6) is connected with the output end of the compressed air inflow port (5) to control the total inflow amount of the compressed air; a total inlet flow meter (7) and a total inlet pressure gauge (8) which are connected in series with the input stop valve (6) to monitor the pressure and flow of the compressed air; the input end of the input header pipe (13) is filled with compressed air passing through the input stop valve (6); an output header pipe (17) for outputting the compressed air after the detection; the invention has reasonable design, compact structure and convenient use.
Description
Technical Field
The invention relates to a submarine gas valve detection simulation device and method.
Background
At present, a compressed gas system is an important guarantee system for underwater ships, and the system generates compressed gas with certain pressure by an air compressor and transmits and stores the compressed gas in a gas cylinder by a pipeline for other machines and systems of ships. In the compressed air pipeline, because the valve need often open and shut, belong to the built-up member moreover, its equipment precision, the using-way, there are defects etc. in sealing washer material and welding part manufacturability or the material itself, all can reveal production influence to valve body itself to cause and reveal. In addition, because the background noise on the ship is complex, part of the compressed gas valves are limited by radiation, high temperature, spatial layout and the like, and the compressed gas valves are difficult to be perceived when micro leakage occurs, which is not favorable for the safety and stability 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 submarine gas valve detection simulation device and method. Aiming at the problem of trace leakage detection of ship compressed gas valves, the invention designs and constructs a comprehensive test table for trace leakage of the ship compressed gas valves, which is used for simulating trace leakage conditions of compressed gas pipelines leaked by the valves, and can realize online trace leakage monitoring of the system through a loaded acoustic emission detection system.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a kind of submarine uses the gas valve to detect the analog device, including the valve leaks the experimental section, it includes the compressed air inflow entrance, in order to send into the necessary compressed air;
the input stop valve is connected with the output end of the compressed air inlet so as to control the total inlet amount of the compressed air;
the total inlet flowmeter and the total inlet pressure gauge are connected in series with the input stop valve to monitor the pressure and the flow of the compressed air;
the input end of the input header pipe is filled with compressed air passing through the input stop valve;
an output header pipe for outputting the compressed air after detection;
the valve to be detected comprises a plurality of valves and checking pipelines, and 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 valve to be detected;
the output main pipe is discharged through a total output flowmeter, a total output pressure gauge and an output stop valve which are connected in series;
each valve to be detected is provided with a detection module;
the detection module comprises acoustic emission sensors which are arranged at two ends of each valve to be detected, and the acoustic emission sensors collect signals generated by compressed gas passing through the valves or the check pipelines;
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 leakage of the valve.
As a further improvement of the above technical solution:
the valve to be detected comprises a leakage needle valve, a leakage gate valve, a leakage stop valve, a leakage ball valve, a check pipeline, a leakage safety valve, a standard needle valve, a standard gate valve, a standard stop valve and a standard ball valve;
a safety emptying flowmeter is connected beside the safety opening of the leakage safety valve, and the safety emptying flowmeter is emptied through a safety silencer;
checking the pipeline, and simulating the condition of the pipeline without leakage;
the leakage needle valve, the leakage gate valve, the leakage stop valve and the leakage ball valve are used for simulating the leakage conditions of different valves;
the standard needle valve, the standard gate valve, the standard stop valve and the standard ball valve are used for simulating the condition that different valves do not leak;
the processor analyzes the signal characteristic quantity of leakage or no leakage of the same valve.
The input end of the valve leakage experiment section is connected with a compressed gas inlet section,
a compressed gas inlet section for compressing air into compressed air required underwater for detection
The valve leakage experimental section is used; a pressure gauge and a flowmeter are arranged at the compressed gas inlet section;
the output end of the valve leakage experiment section is connected with a compressed gas discharge section;
and the compressed gas discharge section is connected with the output end of the valve leakage experiment section.
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 converts the compressed work into required compressed gas and stores the compressed gas into a gas cylinder;
the gas cylinder stores compressed gas and controls the switch through a stop valve at an output port of the gas cylinder;
the adjustable pressure reducing valve is connected to a compressed air inflow port of the valve leakage experiment section after adjusting the pressure of the compressed gas output by the gas cylinder;
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;
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 by the adjustable pressure reducing valve;
the compressed gas discharge section comprises a gas using device connected with the output stop valve.
A submarine gas valve detection simulation device comprises a process support, guide wheels, clamping baffle plates, magnetic suction seats and flange process supports, wherein the process support is installed at the lower end of a valve to be detected, the guide wheels are arranged at the bottom of the process support, the clamping baffle plates are arranged at four corners of the process support, the magnetic suction seats are arranged on the process support and are provided with magnetic knobs, and the flange process supports are arranged at two ends of the process support;
the process bracket is a welding part, and the vent axis line O-O of the valve to be detected is detected;
the clamping baffle is provided with a front flange surface D, an upper surface C, a side surface B and a front end surface A for positioning;
a U-shaped support of the flange process support is contacted with the excircle of the flange of the valve to be detected;
the magnetic knob controls the magnetic suction seat to be attracted or separated with the outer side wall of the valve to be detected;
the heights of the ventilation axes O-O of all the valves to be detected are the same relative to the upper surface C through the height adjustment of the process support; adjusting the width of the process bracket to enable the ventilation axial lines O-O of all the valves to be detected to be the same width relative to the side surface B; the width of the process bracket is adjusted, so that the front flange surfaces D of all the valves to be detected have the same length relative to the front end surface A;
the valve to be detected comprises a plurality of valves and checking pipelines, and is used for being connected in parallel between the input main pipe and the output main pipe; and the two ends of one part of the valves are respectively connected with corresponding pipelines and pipelines of the leakage conditions of different valve positions, and the other part of the valves comprises leakage needle valves, leakage gate valves, leakage stop valves and leakage ball valves.
As a further improvement of the above technical solution:
the apparatus further includes a conveyor belt having carrier members thereon;
an inserting channel is longitudinally arranged on the carrier piece, a side C-shaped channel and a side inclined guide groove are respectively arranged on two sides of the inserting channel, a front limiting block is arranged at the front end of the carrier piece, and the inserting channel and the front limiting block are arranged in a staggered mode;
the inner side wall of the lateral inclined guide groove is provided with an elastic sheet;
a feeding station, an alignment station, a cleaning station, a test station and an output station are sequentially distributed on the conveying belt;
a feeding support frame is arranged on one side of the feeding station, a feeding lifting push rod is vertically arranged on the feeding support frame, a Y-shaped feeding forward push rod is longitudinally arranged on the feeding lifting push rod, a feeding shovel plate is arranged at the upper end part of the feeding forward push rod, a feeding back step is arranged on the back side of the feeding shovel plate, and a feeding guide inclined plane is arranged at the front end of the feeding shovel plate;
an alignment camera is arranged on two sides of the alignment station, and an alignment checking circle is arranged in front of the alignment camera;
a cleaning blowing pipe and a cleaning air outlet pipe are arranged at two transverse sides of the cleaning station;
the test station is provided with detection ventilation pipelines on two transverse sides, and the detection ventilation pipelines are provided with detection positioning end faces and detection positioning conical surfaces; a first stop valve and a second stop valve are respectively connected to the corresponding detection ventilation pipelines;
the first stop valve is connected with an input main pipe, and compressed air passing through the input stop valve is introduced into the input end of the first stop valve;
the second stop valve is connected with an output main pipe which outputs the compressed air after detection;
an output swinging lifting seat is arranged on one longitudinal side of the output station, an output telescopic U-shaped fork is vertically lifted and horizontally rotated on the output swinging lifting seat, an output lifting surface is arranged on the output telescopic U-shaped fork, and an output gear surface is arranged at the root of the output lifting surface.
A detection simulation method for an air valve for a submarine is characterized in that station connection is realized through a conveyor belt by means of detection simulation equipment for the air valve for the submarine, and a carrier piece is arranged on the conveyor belt; the method comprises the following steps:
s1, firstly, manufacturing a corresponding process bracket according to the size of the ventilation axis O-O of the valve to be detected and the position of the front flange surface D, and setting the requirements: a, relative to the upper surface C, enabling the heights of the vent axes O-O of all the valves to be detected to be the same; b, relative to the side surface B, enabling the ventilation axes O-O of all the valves to be detected to be the same in width; c, enabling the front flange surfaces D of all the valves to be detected to be the same length relative to the front end surface A; then, installing the valve to be detected in the flange process support; secondly, the magnetic knob controls the magnetic suction seat to be attracted with the outer side wall of the valve to be detected in a magnetic way;
s2, firstly, placing the process bracket of S1 on a loading shovel plate; then, the feeding shovel plate enters the insertion channel, so that a guide wheel of a process support of the valve to be detected falls into the carrier piece; secondly, the feeding back step moves longitudinally to enable the clamping baffle to enter the side C-shaped channel and the side inclined guide groove, and the side surface B is in positioning contact with the inner side wall of the corresponding side C-shaped channel by utilizing the elastic sheet until the front end surface A is in contact with the front limiting block; thirdly, the feeding shovel plate falls into the insertion channel and retracts to wait for the next process support to be placed;
s3, moving the alignment camera and the alignment check circle through the mechanical arm at an alignment station to enable the axis line of the alignment camera and the alignment check circle to be coaxial with the ventilation axis line O-O corresponding to the valve to be detected, comparing and adjusting the alignment check circle of the corresponding end face shot by the alignment camera with the front flange face D corresponding to the valve to be detected and the rear end face corresponding to the valve to be detected respectively by taking the alignment check circle as a reference, and recording alignment coordinates;
s4, respectively controlling a cleaning blowpipe and a cleaning air outlet pipe through a manipulator at a cleaning station according to the alignment coordinates, and contacting with the corresponding through holes of the valve to be detected so as to ventilate and clean the inner cavity of the valve to be detected;
s5, according to the alignment coordinates, at a test station, firstly, the detection ventilation pipelines are respectively controlled by a manipulator, so that the detection positioning conical surface is inserted into the through hole of the valve to be detected to realize positioning, and the detection positioning end surface is in sealing contact with the corresponding end surface of the valve to be detected; then, the first stop valve and/or the second stop valve are/is controlled to carry out detection simulation;
s6, at the output station, firstly, outputting the lifting surface into the insertion channel; then, the output telescopic U-shaped fork extends, and the output gear surface reversely separates the clamping baffle from the side C-shaped channel and the side inclined guide groove; secondly, the output swing lifting seat rises; and thirdly, the output swinging lifting seat drives the valve to be detected to swing away from the valve to be detected.
A submarine gas valve detection simulation method comprises the following steps
In the detection simulation step of S5, firstly, an air compressor compresses air to convert the air into required compressed gas and stores the compressed gas into a gas cylinder; then, after the pressure is adjusted by a pressure adjusting valve, the gas is conveyed to an experimental section by a pipeline; secondly, the flow meter measures and displays the flow of the inlet air which reaches the experimental section through the pipeline in the working process,
the pressure gauge measures and displays the initial pressure of the intake air reaching the experimental section through the pipeline in the working process; and thirdly, the first stop valve and the second stop valve are used for controlling the air supply switch of the sectional valve and are used for simulating common intact pipelines without leakage, pipelines for simulating the leakage conditions of the positions of different types of valves commonly used by the submarine and pipelines for simulating the leakage conditions of the positions of different types of valves commonly used by the submarine.
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 leakage of the compressed gas valve, can realize the experimental simulation and 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 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 diagram of an improved structure of the present invention.
Fig. 4 is a schematic diagram of a modified structure of the present invention.
Fig. 5 is a schematic illustration of the alignment principle 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 entering flow meter; 8. entering a pressure gauge; 9. a total output 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 valve to be detected; 16. a second stop valve; 17. an output header pipe; 18. a leak needle valve; 19. a leak gate valve; 20. a leakage stop valve; 21. a leak ball valve; 22. checking the pipeline; 23. a leakage safety valve; 24. safely emptying the flowmeter; 25. a safety muffler; 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; 34. a standard needle valve; 35. a standard gate valve; 36. a standard stop valve; 37. a standard ball valve.
41. A process support; 42. a guide wheel; 43. a blocking baffle plate; 44. a magnetic suction base; 45. a magnetic knob; 46. a flange process support; 47. a conveyor belt; 48. a carrier member; 49. inserting into the channel; 50. a side C-shaped channel; 51. a laterally inclined guide groove; 52. a front limiting block; 53. a feeding support frame; 54. a feeding lifting push rod; 55. a feeding forward push rod; 56. a feeding shovel plate; 57. a feeding rear step; 58. a feeding guide inclined plane; 59. a feeding station; 60. aligning a station; 61. cleaning the station; 62. a test station; 63. an output station; 64. aligning the camera; 65. checking a circle by alignment; 66. cleaning the blowpipe; 67. cleaning an air outlet pipe; 68. detecting a ventilation pipeline; 69. detecting a positioning end face; 70. detecting a positioning conical surface; 71. outputting a swinging lifting seat; 72. outputting a telescopic U-shaped fork; 73. outputting a lifting surface; 74. and outputting a gear surface.
Detailed Description
As shown in fig. 1 to 5, the air valve detection simulation device for a submarine according to the present embodiment includes a valve leakage experimental section including a compressed air inflow port 5 for feeding a required compressed air; an input stop valve 6 connected with the output end of the compressed air inlet 5 to control the total inlet amount of the compressed air; a total inlet flow meter 7 and a total inlet pressure gauge 8 which are connected in series with the input stop valve 6 to monitor the pressure and flow of the compressed air; the input end of the input header pipe 13 is filled with compressed air passing through the input stop valve 6; an output manifold 17 that outputs compressed air after detection use; the valve 15 to be detected comprises a plurality of valves and checking pipelines 22 which are connected in parallel between the input main pipe 13 and the output main pipe 17; a first stop valve 14 and a second stop valve 16 are respectively arranged at two ends of each valve 15 to be detected; a first stop valve 14 and a second stop valve 16 are respectively arranged at two ends of each valve 15 to be detected; the output main pipe 17 is discharged through a total output flowmeter 9, a total output pressure gauge 10 and an output stop valve 12 which are connected in series; each valve 15 to be detected is provided with a detection module 1; the detection module 1 comprises acoustic emission sensors 3 which are arranged at two ends of each valve 15 to be detected, and the acoustic emission sensors 3 collect signals generated by compressed gas passing through the valves or the check pipelines 22; 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 signal characteristic quantity to judge the valve leakage.
The valve 15 to be detected comprises a leakage needle valve 18, a leakage gate valve 19, a leakage stop valve 20, a leakage ball valve 21, a check pipeline 22, a leakage safety valve 23, a standard needle valve 34, a standard gate valve 35, a standard stop valve 36 and a standard ball valve 37; a safety emptying flowmeter 24 is connected beside the safety opening of the leakage safety valve 23, and the safety emptying flowmeter 24 is emptied through a safety silencer 25; a check pipeline 22 for simulating a pipeline condition without leakage; the leakage needle valve 18, the leakage gate valve 19, the leakage stop valve 20 and the leakage ball valve 21 are used for simulating the leakage conditions of different valves; the standard needle valve 34, the standard gate valve 35, the standard stop valve 36 and the standard ball valve 37 are used for simulating the condition that different valves do not leak; the processor analyzes the signal characteristic quantity of leakage or no leakage of the same valve.
The input end of the valve leakage experiment section is connected with a compressed gas inlet section which compresses air 26 into compressed air required underwater for detection
The valve leakage experimental section is used; a pressure gauge and a flowmeter are arranged at the compressed gas inlet section; the output end of the valve leakage experiment section is connected with a compressed gas discharge section; and the compressed gas discharge section is connected with the output end of the valve leakage experiment section.
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 converting the compressed gas into a desired compressed gas and storing the compressed gas in a gas cylinder 28; a gas cylinder 28 for storing compressed gas and controlling the opening and closing of the valve through a stop valve at an output port thereof; the adjustable pressure reducing valve 31 is connected to a compressed air inlet 5 of the valve leakage experimental section after adjusting the pressure of the compressed air output by the air bottle 28; 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 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 compressed gas discharge section includes a gas-using device 11 connected to the output shutoff valve 12.
The air compressor is used for converting air into required compressed gas through compression work and storing the compressed gas into the gas cylinder; 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 valve 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 valve 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 an air supply switch of the section valve; the middle of the experimental pipeline is a common intact pipeline which is used for simulating the condition of no leakage; the upper half part of pipelines are used for simulating the leakage condition of different valve positions commonly used by submarines. The lower half pipeline is used for simulating the leakage condition of different leakage valve positions commonly used by the submarine, so that contrast is formed.
In addition, the design of head and the tail section stop valve is detachable, and other leakage conditions are conveniently designed to replace and disassemble the valve.
The compressed gas discharge section comprises a flowmeter, gas equipment, a pipeline and accessories.
Along the gas flow direction, the tail section flowmeter is used for measuring and displaying the gas flow used by gas equipment for the valve in the working process;
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 pressurizing state of the valve.
The invention can effectively simulate the leakage condition of the marine compressed gas valve under the laboratory condition, provides the simulation and demonstration of leakage detection, can be repeatedly used, and can be conveniently disassembled and assembled on all branch pipelines, thereby facilitating the fault setting of other pipelines. The valve leakage detection and leakage point positioning can be carried out by adopting the acoustic emission detection technology.
In the figure, two sides of an experimental valve are respectively provided with an acoustic emission sensor 3, signals generated by compressed gas passing through the valve are sent to an acoustic emission processor after being preprocessed by a power amplifier through the sensors, and valve leakage judgment is carried out by further analyzing signal characteristic quantity. The experimental result can further verify the rationality and the practicability of the experiment table.
As shown in fig. 1 to 5, the detection simulation device for the gas valve for the submarine according to the present embodiment includes a process bracket 41 installed at the lower end of the valve 15 to be detected, a guide wheel 42 disposed at the bottom of the process bracket 41, a blocking plate 43 disposed at four corners of the process bracket 41, a magnetic suction seat 44 disposed on the process bracket 41 and having a magnetic knob 45, and flange process brackets 46 disposed at two ends of the process bracket 41;
the process bracket 41 is a welding part, and the ventilation axis line O-O of the valve 15 to be detected;
the position-retaining stop 43 has a front flange surface D, an upper surface C, a side surface B and a front end surface a for positioning;
the U-shaped support of the flange process support 46 is contacted with the outer circle of the flange of the valve 15 to be detected;
the magnetic knob 45 controls the magnetic suction seat 44 to be magnetically attracted to or separated from the outer side wall of the valve 15 to be detected;
the heights of the ventilation axes O-O of all the valves 15 to be detected are the same height relative to the upper surface C through the height adjustment of the process bracket 41; adjusting the width of the process bracket 41 to enable the ventilation axis lines O-O of all the valves 15 to be detected to be the same width relative to the side surface B; the width of the process bracket 41 is adjusted, so that the front flange surfaces D of all the valves 15 to be detected have the same length relative to the front end surface A;
the valve 15 to be detected comprises a plurality of valves and checking pipelines 22 and is used for being connected between the input main pipe 13 and the output main pipe 17 in parallel; and one part of the valves is connected with pipelines corresponding to pipelines and leakage conditions of different valve positions at two ends respectively, and the other part of the valves comprises a leakage needle valve 18, a leakage gate valve 19, a leakage stop valve 20 and a leakage ball valve 21.
The apparatus further comprises a conveyor belt 47 with carrier members 48 on the conveyor belt 47;
an insertion channel 49 is longitudinally arranged on the carrier piece 48, a side C-shaped channel 50 and a side inclined guide groove 51 are respectively arranged at two sides of the insertion channel 49, a front limiting block 52 is arranged at the front end of the carrier piece 48, and the insertion channel 49 and the front limiting block 52 are arranged in a staggered mode;
the inner side wall of the side inclined guide groove 51 is provided with an elastic sheet;
a feeding station 59, a aligning station 60, a cleaning station 61, a testing station 62 and an output station 63 are sequentially distributed on the conveyor belt 47;
a feeding station 59, one side of which is provided with a feeding support frame 53, a feeding lifting push rod 54 is vertically arranged on the feeding support frame 53, a Y-shaped feeding forward push rod 55 is longitudinally arranged on the feeding lifting push rod 54, a feeding shovel plate 56 is arranged at the upper end part of the feeding forward push rod 55, a feeding back step 57 is arranged at the back side of the feeding shovel plate 56, and a feeding guide inclined plane 58 is arranged at the front end of the feeding shovel plate 56;
an alignment camera 64 is arranged at two sides of the alignment station 60, and an alignment checking circle 65 is arranged in front of the alignment camera 64;
a cleaning blowing pipe 66 and a cleaning air outlet pipe 67 are arranged at two transverse sides of the cleaning station 61;
a test station 62 is provided with detection ventilation pipelines 68 at two transverse sides, and a detection positioning end surface 69 and a detection positioning conical surface 70 are arranged on the detection ventilation pipelines 68; the first stop valve 14 and the second stop valve 16 are connected to the corresponding detection ventilation line 68;
the first stop valve 14 is connected with an input header pipe 13, and the input end of the first stop valve is filled with compressed air passing through the input stop valve 6;
the second stop valve 16 is connected with an output main pipe 17 which outputs the compressed air after detection;
an output swing lifting seat 71 is arranged on one longitudinal side of the output station 63, an output telescopic U-shaped fork 72 is vertically lifted and horizontally rotated on the output swing lifting seat 71, an output lifting surface 73 is arranged on the output telescopic U-shaped fork 72, and an output stop surface 74 is arranged at the root of the output lifting surface 73.
In the detection simulation method for the gas valve for the submarine, station connection is realized through the conveyor belt 47 by means of the detection simulation equipment for the gas valve for the submarine, and the conveyor belt 47 is provided with the carrier piece 48; the method comprises the following steps:
s1, firstly, according to the size of the ventilation axis O-O of the valve 15 to be detected and the position of the front flange surface D, manufacturing a corresponding process support 41, and setting the requirements: a, relative to the upper surface C, the heights of the vent axes O-O of all the valves 15 to be detected are the same; b, relative to the side surface B, enabling the ventilation axes O-O of all the valves 15 to be detected to be the same width; c, relative to the front end face A, enabling the front flange faces D of all the valves 15 to be detected to be the same in length; then, the valve 15 to be tested is installed in the flange process holder 46; secondly, the magnetic knob 45 controls the magnetic suction seat 44 to be magnetically attracted with the outer side wall of the valve 15 to be detected;
s2, first, the process holder 41 of S1 is placed on the loading shovel plate 56; then, the loading shovel plate 56 enters the insertion passage 49, so that the guide wheels 42 of the process holders 41 of the valves 15 to be detected fall into the carrier pieces 48; secondly, the feeding back step 57 moves longitudinally to make the blocking baffle 43 enter the side C-shaped channel 50 and the side inclined guide groove 51, and the side surface B is in positioning contact with the inner side wall of the corresponding side C-shaped channel 50 by using the elastic sheet until the front end surface a is in contact with the front limiting block 52; again, the loading blade 56 drops into the insertion channel 49 and retracts to await the next process support 41 placement;
s3, moving the alignment camera 64 and the alignment check circle 65 through the mechanical arm at the alignment station 60 to enable the axial lead to be coaxial with the ventilation axial lead O-O corresponding to the valve 15 to be detected, taking the alignment check circle 65 as a reference, respectively comparing and adjusting the alignment check circle 65 of the corresponding end face shot by the corresponding alignment camera 64 with the front flange face D corresponding to the valve 15 to be detected and the rear end face corresponding to the valve 15 to be detected, and recording alignment coordinates;
s4, respectively operating the cleaning blowpipe 66 and the cleaning air outlet pipe 67 by a manipulator at the cleaning station 61 according to the alignment coordinates, and contacting with the corresponding through hole of the valve 15 to be detected so as to ventilate and clean the inner cavity of the valve 15 to be detected;
s5, according to the alignment coordinates, at the test station 62, firstly, the detection ventilation pipelines 68 are respectively controlled by the manipulator, so that the detection positioning conical surface 70 is inserted into the through hole of the valve 15 to be detected to realize positioning, and is in sealing contact with the corresponding end surface of the valve 15 to be detected through the detection positioning end surface 69; then, the first stop valve 14 and/or the second stop valve 16 are/is operated to perform detection simulation;
s6, at the outfeed station 63, first, the outfeed lift surface 73 enters the insertion channel 49; then, the output telescopic U-shaped fork 72 is extended, and the output baffle surface 74 reversely separates the position-retaining baffle 43 from the side C-shaped channel 50 and the side inclined guide groove 51; secondly, the output swing lifting seat 71 ascends; and thirdly, the output swinging lifting seat 71 drives the valve 15 to be detected to swing away from the valve 15 to be detected.
The detection simulation method for the gas valve for the submarine comprises the following steps
In the detection simulation step of S5, firstly, an air compressor compresses air to convert the air into required compressed gas and stores the compressed gas into a gas cylinder; then, after the pressure is adjusted by a pressure adjusting valve, the gas is conveyed to an experimental section by a pipeline; secondly, the flow meter measures and displays the flow of the inlet air which reaches the experimental section through the pipeline in the working process,
the pressure gauge measures and displays the initial pressure of the intake air reaching the experimental section through the pipeline in the working process; and thirdly, the first stop valve 14 and the second stop valve 16 are used for controlling the air supply switch of the sectional valve and are used for simulating common intact pipelines without leakage, pipelines for simulating the leakage conditions of the submarine at different valve positions and pipelines for simulating the leakage conditions of the submarine at different valve positions.
The invention realizes the requirements of meeting the center height and end surface position of different valves and checking pipelines by designing a process bracket 41 so as to meet the simulation requirements, a guide wheel 42 reduces friction force, a positioning surface of a blocking baffle 43 realizes the positioning of height, transverse direction and longitudinal direction, a magnetic suction seat 44 realizes the quick suction by a magnetic knob 45, a flange process bracket 46 is adjusted according to the requirements of the valve and pipeline size and can be V-shaped, U-shaped or C-shaped, an insertion channel 49 facilitates the entering and separation of a shovel plate, a side C-shaped channel 50 has compatibility, an elastic sheet can be a spring sheet or an elastic steel ball, the lateral movement of the process bracket is realized, a side inclined guide groove 51 realizes the positioning, a front limiting block 52 realizes the transverse positioning, a feeding support frame 53 is taken as a reference, a feeding lifting push rod 54 and a feeding forward push rod 55 realize the lifting and the longitudinal movement, a feeding shovel plate 56 realizes the supporting of the process bracket, the feeding back step 57 realizes pushing, the conveyor belt advances to realize quick separation, and the feeding guide inclined plane 58 has guidance. The loading station 59, the alignment station 60, the cleaning station 61, the test station 62 and the output station 63 are sequentially distributed, accurate adjustment of the central positions of the valve and the pipeline is realized by aligning the camera 64 and the alignment check circle 65, the blowing pipe 66 is cleaned, the air outlet pipe 67 is cleaned in advance, the detection ventilation pipeline 68 realizes simulated ventilation detection, the end face sealing is realized by the detection positioning end face 69, the taper guiding and sealing are realized by the detection positioning conical face 70, the lifting and swinging actions of the output swinging lifting seat 71 are realized, the channel is realized by the output telescopic U-shaped fork 72, the bearing process support is realized by the output lifting face 73, the positioning of the output baffle face 74 is realized, the separation of the magnetic suction seat 44 and the valve 15 to be detected through the magnetic knob 45 is realized, the disassembly is easy, and the marking on the process support can be realized for identification.
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 (8)
1. A submarine gas valve detection simulation equipment is characterized in that: the device comprises a valve leakage experiment section, a valve leakage experiment section and a valve leakage experiment section, wherein the valve leakage experiment section comprises a compressed air inflow port (5) for feeding required compressed air;
the input stop valve (6) is connected with the output end of the compressed air inflow port (5) to control the total inflow amount of the compressed air;
a total inlet flow meter (7) and a total inlet pressure gauge (8) which are connected in series with the input stop valve (6) to monitor the pressure and flow of the compressed air;
the input end of the input header pipe (13) is filled with compressed air passing through the input stop valve (6);
an output header pipe (17) for outputting the compressed air after the detection;
the valve (15) to be detected comprises a plurality of valves and checking pipelines (22) which are connected in parallel between the input main pipe (13) and the output main pipe (17);
a first stop valve (14) and a second stop valve (16) are respectively arranged at two ends of each valve (15) to be detected;
the output main pipe (17) is discharged through a total output flowmeter (9), a total output pressure gauge (10) and an output stop valve (12) which are connected in series;
each valve (15) to be detected is provided with a detection module (1);
the detection module (1) comprises acoustic emission sensors (3) which are arranged at two ends of each valve (15) to be detected, and the acoustic emission sensors (3) collect signals generated by compressed gas passing through the valves or the check pipelines (22);
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 valve.
2. The air valve detection simulation device for a submarine according to claim 1, wherein: the valve (15) to be detected comprises a leakage needle valve (18), a leakage gate valve (19), a leakage stop valve (20), a leakage ball valve (21), a check pipeline (22), a leakage safety valve (23), a standard needle valve (34), a standard gate valve (35), a standard stop valve (36) and a standard ball valve (37);
a safety emptying flowmeter (24) is connected beside a safety opening of the leakage safety valve (23), and the safety emptying flowmeter (24) is emptied through a safety silencer (25);
a check line (22) for simulating a leak-free line condition;
the leakage needle valve (18), the leakage gate valve (19), the leakage stop valve (20) and the leakage ball valve (21) are used for simulating the leakage conditions of different valves;
the standard needle valve (34), the standard gate valve (35), the standard stop valve (36) and the standard ball valve (37) are used for simulating the condition that different valves do not leak;
the processor analyzes the signal characteristic quantity of leakage or no leakage of the same valve.
3. The submarine gas valve detection simulation device according to claim 2, wherein: the input end of the valve leakage experiment section is connected with a compressed gas inlet section,
a compressed gas inlet section for compressing air (26) into compressed air required for underwater detection
The valve leakage experimental section is used; a pressure gauge and a flowmeter are arranged at the compressed gas inlet section;
the output end of the valve leakage experiment section is connected with a compressed gas discharge section;
and the compressed gas discharge section is connected with the output end of the valve leakage experiment section.
4. The submarine gas valve detection simulation device according to claim 3, wherein:
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;
the air compressor (27) converts the compressed work into required compressed gas and stores the compressed gas into a gas cylinder (28);
a gas cylinder (28) for storing compressed gas and controlling the opening and closing of the valve through a stop valve at an output port thereof;
the adjustable pressure reducing valve (31) is connected to a compressed air inlet (5) of the valve leakage experiment section after adjusting the pressure of the compressed gas output by the gas cylinder (28);
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;
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);
the compressed gas discharge section comprises a gas-using device (11) connected to the output stop valve (12).
5. A submarine gas valve detection simulation equipment is characterized in that: the device comprises a process support (41) arranged at the lower end of a valve (15) to be detected, a guide wheel (42) arranged at the bottom of the process support (41), clamping baffles (43) arranged at four corners of the process support (41), a magnetic suction seat (44) arranged on the process support (41) and provided with a magnetic knob (45), and flange process supports (46) arranged at two ends of the process support (41);
the process bracket (41) is a welding part, and the valve (15) to be detected is provided with a ventilation axis O-O and a front flange surface D;
the blocking baffle (43) is provided with an upper surface C, a side surface B and a front end surface A for positioning;
the U-shaped support of the flange process support (46) is contacted with the outer circle of the flange of the valve (15) to be detected;
the magnetic knob (45) controls the magnetic suction seat (44) to be magnetically attracted or separated with the outer side wall of the valve (15) to be detected;
the height of the ventilation axis O-O of all the valves (15) to be detected is the same as the height of the ventilation axis O-O relative to the upper surface C through the height adjustment of the process bracket (41); the width of the process bracket (41) is adjusted, and relative to the side surface B, the ventilation axial leads O-O of all the valves (15) to be detected are the same width; the width of the process bracket (41) is adjusted, so that the front flange surfaces D of all the valves (15) to be detected are the same length relative to the front end surface A;
the valve (15) to be detected comprises a plurality of valves and checking pipelines (22) and is used for being connected in parallel between the input main pipe (13) and the output main pipe (17); and two ends of one part of the valves are respectively connected with corresponding pipelines and pipelines of leakage conditions of different valve positions, and the other part of the valves comprises a leakage needle valve (18), a leakage gate valve (19), a leakage stop valve (20) and a leakage ball valve (21).
6. The air valve detection simulation device for a submarine according to claim 5, wherein: the apparatus further comprises a conveyor belt (47) with carrier members (48) on the conveyor belt (47);
an inserting channel (49) is longitudinally arranged on the carrier piece (48), a side C-shaped channel (50) and a side inclined guide groove (51) are respectively arranged on two sides of the inserting channel (49), a front limiting block (52) is arranged at the front end of the carrier piece (48), and the inserting channel (49) and the front limiting block (52) are arranged in a staggered mode;
the inner side wall of the side inclined guide groove (51) is provided with an elastic sheet;
a feeding station (59), a aligning station (60), a cleaning station (61), a testing station (62) and an output station (63) are sequentially distributed on the conveyor belt (47);
a feeding support frame (53) is arranged on one side of a feeding station (59), a feeding lifting push rod (54) is vertically arranged on the feeding support frame (53), a Y-shaped feeding forward push rod (55) is longitudinally arranged on the feeding lifting push rod (54), a feeding shovel plate (56) is arranged at the upper end part of the feeding forward push rod (55), a feeding back step (57) is arranged on the back side of the feeding shovel plate (56), and a feeding guide inclined plane (58) is arranged at the front end of the feeding shovel plate (56);
an alignment camera (64) is arranged on two sides of the alignment station (60), and an alignment checking circle (65) is arranged in front of the alignment camera (64);
a cleaning blowing pipe (66) and a cleaning air outlet pipe (67) are arranged at two transverse sides of the cleaning station (61);
a test station (62) is provided with detection ventilation pipelines (68) at two transverse sides, and a detection positioning end surface (69) and a detection positioning conical surface (70) are arranged on the detection ventilation pipelines (68); a first stop valve (14) and a second stop valve (16) are respectively connected to the corresponding detection ventilation pipelines (68);
the first stop valve (14) is connected with an input main pipe (13), and the input end of the first stop valve is introduced with compressed air passing through the input stop valve (6);
the second stop valve (16) is connected with an output main pipe (17) which outputs the compressed air after detection;
an output swing lifting seat (71) is arranged on one longitudinal side of the output station (63), an output telescopic U-shaped fork (72) is vertically lifted and horizontally rotated on the output swing lifting seat (71), an output lifting surface (73) is arranged on the output telescopic U-shaped fork (72), and an output gear surface (74) is arranged at the root of the output lifting surface (73).
7. A submarine gas valve detection simulation method is characterized by comprising the following steps: station linking is realized through a conveyor belt (47) by means of a gas valve detection simulation device for the submarine, and a carrier piece (48) is arranged on the conveyor belt (47); the method comprises the following steps:
s1, firstly, manufacturing a corresponding process bracket (41) according to the size of the ventilation axis O-O of the valve (15) to be detected and the position of the front flange surface D, and setting the requirements: a, relative to the upper surface C, the heights of the ventilation axes O-O of all the valves (15) to be detected are the same; b, relative to the side surface B, the ventilation axial leads O-O of all the valves (15) to be detected are the same in width; c, relative to the front end face A, the front flange faces D of all the valves (15) to be detected are the same in length; then, installing the valve (15) to be detected in the flange process support (46); secondly, the magnetic knob (45) controls the magnetic suction seat (44) to be attracted with the outer side wall of the valve (15) to be detected in a magnetic way;
s2, firstly, placing the process bracket (41) of the S1 on a feeding shovel plate (56); then, the feeding shovel plate (56) enters the inserting channel (49) so that the guide wheel (42) of the process bracket (41) of the valve (15) to be detected falls into the carrier piece (48); secondly, the feeding rear step (57) moves longitudinally to enable the clamping baffle (43) to enter the side C-shaped channel (50) and the side inclined guide groove (51), and the side surface B is in positioning contact with the inner side wall of the corresponding side C-shaped channel (50) by utilizing the elastic sheet until the front end surface A is in contact with the front limiting block (52); thirdly, the feeding shovel plate (56) falls into the inserting channel (49) and retreats to wait for the next process support (41) to be placed;
s3, moving the alignment camera (64) and the alignment check circle (65) through a mechanical arm at an alignment station (60) to enable the axis line of the alignment camera to be coaxial with the ventilation axis line O-O corresponding to the valve (15) to be detected, comparing and adjusting the alignment check circle (65) of the corresponding end face shot by the corresponding alignment camera (64) with the front flange face D corresponding to the valve (15) to be detected and the rear end face corresponding to the valve (15) to be detected respectively by taking the alignment check circle (65) as a reference, and recording an alignment coordinate;
s4, respectively controlling a cleaning blowpipe (66) and a cleaning air outlet pipe (67) through a manipulator at a cleaning station (61) according to the alignment coordinates, and contacting with the corresponding through hole of the valve (15) to be detected so as to ventilate and clean the inner cavity of the valve (15) to be detected;
s5, according to the alignment coordinates, at a test station (62), firstly, the detection ventilation pipelines (68) are respectively controlled by a manipulator, so that the detection positioning conical surface (70) is inserted into the through hole of the valve (15) to be detected to realize positioning, and the detection positioning end surface (69) is in sealing contact with the corresponding end surface of the valve (15) to be detected; then, operating the first stop valve (14) and/or the second stop valve (16) to perform detection simulation;
s6, in the output station (63), firstly, the lifting surface (73) is output to enter the insertion channel (49); then, the output telescopic U-shaped fork (72) extends, and the output baffle surface (74) reversely separates the clamping baffle (43) from the side C-shaped channel (50) and the side inclined guide groove (51); secondly, the output swing lifting seat (71) rises; and thirdly, the output swinging lifting seat (71) drives the valve (15) to be detected to swing away from the valve (15) to be detected.
8. A submarine gas valve detection simulation method is characterized by comprising the following steps: comprises the following steps
In the detection simulation step of S5, firstly, an air compressor compresses air to convert the air into required compressed gas and stores the compressed gas into a gas cylinder; then, after the pressure is adjusted by a pressure adjusting valve, the gas is conveyed to an experimental section by a pipeline; secondly, the flow meter measures and displays the flow of the inlet air which reaches the experimental section through the pipeline in the working process,
the pressure gauge measures and displays the initial pressure of the intake air reaching the experimental section through the pipeline in the working process; and thirdly, the first stop valve (14) and the second stop valve (16) are used for controlling the air supply switch of the section valve and are used for simulating common intact pipelines without leakage, pipelines for simulating the leakage conditions of the submarine at different valve positions and pipelines for simulating the leakage conditions of the submarine at different valve positions.
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| CN114112454A (en) * | 2021-09-14 | 2022-03-01 | 中国人民解放军海军潜艇学院 | Water hammer comprehensive protection method for ship water transfer system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114112454A (en) * | 2021-09-14 | 2022-03-01 | 中国人民解放军海军潜艇学院 | Water hammer comprehensive protection method for ship water transfer system |
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