CN203069555U - Automatic comprehensive detection system for gas storage well wall - Google Patents
Automatic comprehensive detection system for gas storage well wall Download PDFInfo
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- CN203069555U CN203069555U CN 201320044079 CN201320044079U CN203069555U CN 203069555 U CN203069555 U CN 203069555U CN 201320044079 CN201320044079 CN 201320044079 CN 201320044079 U CN201320044079 U CN 201320044079U CN 203069555 U CN203069555 U CN 203069555U
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Abstract
The utility model relates to an automatic comprehensive detection system for a gas storage well wall. The automatic comprehensive detection system comprises a ground upper computer, a position measuring device, a cable lifting device, a direct current power supply and an underground mobile detector, wherein the mobile detector is in communication with ground equipment through an armored cable and is powered, and thus the space occupied by the cable is saved, and the field operation is facilitated. As a wall thickness corrosion detection probe group and a crack detection probe group are arranged in the mobile detector, the wall thickness corrosion detection and the crack detection can be simultaneously completed, so that the gas storage well is detected comprehensively. Meanwhile, the underground equipment of the system integrates excitation, receiving and amplifying, signal processing and transmission functions, and an ultrasonic signal is not required to be transmitted for a long distance and is then processed, and thus the signal fidelity and the signal to noise ratio are greatly improved, so that detection results are accurate.
Description
Technical field
The utility model belongs to industrial gas storage well ultrasound examination field, is specifically related to a kind of well for storage borehole wall robotization comprehensive detection system for gas storage well borehole wall wall thickness corrosion detection and crack-detecting.
Background technology
High pressure underground gas well (hereinafter to be referred as gas storage well) is as a kind of novel gas storage equipment of CNG gas station, be that to store the compressed natural gas body be that purpose a kind of special is installed in underground, pipe vertical pressure vessel, hole structure adopts screw thread (not having welding) to connect, working pressure is up to 25MPa, has that floor area is little, an advantage such as high safety, operating cost are low, simple and convenient operation and maintenance.But gas storage well sleeve pipe buried underground (the darkest 260m that reaches) owing to reasons such as stratum galvanochemistry, fatigue corrosions, can cause the regional area wall thickness reduction, has great potential safety hazard, thereby gas storage well is carried out regular condition detection seems most important.
At present, domestic employing ultrasonic technology is as the main means of gas storage well sleeve pipe check, but the detection method that adopts only is confined to the detection of wall thickness corrosion on the one hand, about another kind of critical defect--the detection of crack defect does not but relate to, cause the detection of gas storage well not comprehensively like this, cause potential safety hazard thereby miss some crucial defectives easily.Underground equipment and uphole equipment adopt Optical Fiber Transmission in the existing equipment on the other hand, though Optical Fiber Transmission has the advantage that transmission speed is fast, transmitted data amount is big, but it is too fragile during optical fiber is operated in the open air, in operating process, cause damage easily, and except optical fiber, also will be equipped with for delivery of the cable of detecting device to the down-hole, make a set of equipment will be equipped with two cover cables and two cover line rollers have increased equipment complexity.
Summary of the invention
For overcoming above-mentioned deficiency of the prior art, the utility model provides a kind of well for storage borehole wall robotization comprehensive detection system, can utilize a cable to realize power supply, communication and the suspension of underground equipment, and can utilize a set of equipment to finish the detection of wall thickness corrosion and crackle, simplify the formation of equipment, realized comprehensive comprehensive detection of borehole wall situation.
The technical solution adopted in the utility model is as follows: a kind of well for storage borehole wall robotization comprehensive detection system, the portable detecting device that comprises aboveground host computer, position-measurement device, cable jacking gear, direct supply and down-hole, the portable detecting device of down-hole is connected with direct supply with aboveground host computer by sheathed cable, sheathed cable is walked around position-measurement device and cable jacking gear, and the sheathed cable two ends also are provided with the communications protocol modular converter; Described cable jacking gear comprises the roller a that is positioned at well head one side and is positioned at roller b directly over the well head, position-measurement device comprises the rotary encoder sum counter, rotary encoder links to each other with roller a, and the output signal of rotary encoder is transferred to host computer by USB interface after counter is handled; Described portable detecting device is provided with cable connector, follower and two cavitys, two cavitys are water-stop, be respectively equipped with Ultrasonic Detection electronic module group and ultrasonic probe group in two cavitys, Ultrasonic Detection electronic module group comprises that power module, data transmission module, probe excitation and signal receive amplification module, analog to digital conversion and digital signal processing module, the ultrasonic probe group comprises wall thickness corrosion detection probe group and crack detection probe group, and the probe of each probe group is arranged along cavity circumferencial direction hoop.
Detection system described in the utility model is divided into aboveground and down-hole two parts, the portable detecting device of down-hole is connected with host computer with aboveground power supply by sheathed cable, realize power supply and the communication of detecting device, cable also is connected with jacking gear simultaneously, realizes suspension and the lifting of detecting device.Cable is walked around two rollers and is connected on the detecting device, and two rollers lay respectively at well head one side and well head top, and the roller of well head top hangs on the crane or by stent support, be positioned at well head directly over, guarantee that detecting device vertically drops in the well.On the roller of well head one side rotary encoder is installed, rotates with roller and send pulse signal, and after counter is handled, obtain the positional information of detecting device, give host computer through the USB oral instructions again.
Because detecting device works under water, must carry out waterproof work, so the utility model is provided with airtight test chamber at detecting device, test chamber has two cavitys, adopts water-stop respectively, and two cavitys hold ultrasonic electronic detection module group and ultrasonic probe group respectively.For recording wall thickness corrosion and crack defect data simultaneously, the utility model is two groups with the ultrasonic probe component, detect two kinds of defective datas respectively, two groups of probes are all arranged along cavity circumferencial direction hoop, maximum magnitude covers the borehole wall, and the number of probe is identical with the port number of ultrasonic electronic and decide on the actual detected demand.Wall thickness corrosion detects and crack detection can adopt the test of once going into the well to carry out also can adopting the mode that detects respectively that the wall thickness corrosion is detected simultaneously and crack detection is gone into the well at twice to test and finished.Ultrasonic Detection electronic module group has been finished the collection of ultrasonic signal and has been handled and directly obtained about wall thickness corrosion and crack defect data, thereby the decay of having avoided ultrasonic signal to cause because of the long-distance cable transmission, the data after the processing are carried out data transmission with RS-485 or RS-422 form and have been guaranteed the reliability that transmits.
Described sheathed cable is polycore cable, and the cable outside is surrounded by ground shield, and there is the lead of multiply mutually insulated inside, and wherein two leads are responsible for portable detecting device power supply, and all the other leads are responsible for finishing the communication of portable detecting device and host computer.Utilize a cable and a cover line roller can realize power supply, communication and the suspension of detecting device, and the sheathed cable durability is strong, is more suitable for the field operation environment.
Underground equipment of the present utility model and uphole equipment adopt RS-232 serial port communicating protocol swap data, but because RS-232 communication modes transmission range is limited, therefore RS-232/RS-485 modular converter or RS-232/RS-422 modular converter are set at the sheathed cable two ends, the single-ended RS-232 communication signal of host computer output is converted to the RS-485 of both-end difference or the signal of RS-422 pattern is carried by sheathed cable again, signal arrives passes to detecting device after the cable other end is changed receipt end RS-232 signal again.Specifically selecting the RS-485 pattern still is the number that the RS-422 pattern depends on cable conductor.As be that the following cable of six cores is selected the RS-485 pattern for use, be six cores or more employing RS-422 patterns as cable.
The utility model is provided with wall thickness corrosion detection probe and crack detection probe simultaneously in detecting device, wall thickness corrosion detection probe group and crack detection probe group can be enumerated up and down in the same cavity, detect simultaneously, also can divide to be positioned at two cavitys and to detect respectively.
Host computer mentioned above is notebook computer, and system communication and software for display are installed in it, integrates the defective data that obtains through the RS-232 serial ports respectively with through the detector location data that the USB mouth obtains, and shows in the mode of C scanning and curve.
The utlity model has following advantage:
1, wall thickness corrosion detection and crack detection are combined, make the detection of gas storage well more comprehensively, further guarantee the operation security of gas storage well;
2, the detecting device of native system has been integrated the probe excitation, signal receives amplification, signal processing and transfer function, thereby making ultrasonic signal be transferred to ground through long distance of wire handles again, improved fidelity and the signal to noise ratio (S/N ratio) of signal greatly, made testing result more accurately and reliably;
3, the data crossed of detector processes are transmitted by RS-485 or the RS-422 signal that single-ended RS-232 signal is converted to difference through the communications protocol modular converter, have guaranteed accuracy and the reliability of signal transmission.
4, the single sheathed cable of signal transmission employing and power sharing has been simplified the equipment formation, greatly facilitates field operation, has reduced because the failure rate that cable causes.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail:
Fig. 1 is system of the present utility model composition diagram;
Fig. 2 is system chart of the present utility model;
Fig. 3 is testing process figure of the present utility model;
Fig. 4 is portable detector arrangement synoptic diagram;
Fig. 5 is that 1 liang of probe group of embodiment is positioned at the probe group Pareto diagram that same cavity and crack detection probe group are positioned at the top;
Fig. 6 is that 1 liang of probe group of embodiment is positioned at the probe group Pareto diagram that same cavity and crack detection probe group are positioned at the below;
Fig. 7 is embodiment 2 wall thickness corrosion detection probe group place cavity probe group Pareto diagram;
Fig. 8 is embodiment 2 crack detection probe group place cavity probe group Pareto diagrams;
Among the figure, 1, host computer, 2, the cable roller, 3, sheathed cable, 4, roller a, 5, roller b, 6, support, 7, portable detecting device, 8, rotary encoder, 9, counter, 10, direct supply, 11, the RS-232/RS-485 modular converter, 12, Ultrasonic Detection electronic module group, 121, power module, 122, data transmission module, 123, analog to digital conversion and digital signal processing module, 124, probe excitation and signal receive amplification module, 13, the ultrasonic probe group, 131, wall thickness corrosion detection probe group, 132, crack detection probe group, 14, cable connector, 15, the upper end follower, 16, the detected electrons chamber, 17, the lower end follower, 18, the probe chamber.
Embodiment
A kind of well for storage borehole wall robotization comprehensive detection system, as shown in Figure 1, the portable detecting device 7 that comprises aboveground host computer 1, position-measurement device, cable jacking gear, cable roller 2, direct supply 10 and down-hole, host computer 1, cable roller 2 and direct supply 10 are positioned on the inspection vehicle, operating personnel operate detection system at inspection vehicle, host computer 1 adopts notebook computer, system communication is housed in it and detects software.Described cable jacking gear comprises the roller a4 that is positioned at well head one side and is positioned at roller b5 directly over the well head that roller b5 is fixed on the well head top by support 6.Underground equipment carries out communication and power supply by sheathed cable 3, sheathed cable 3 is coiled on the cable roller 2, one end is connected with direct supply 10 with host computer 1, the other end is connected with the portable detecting device 7 of down-hole after walking around two rollers, described sheathed cable 3 is polycore cable, the cable outside is surrounded by ground shield, there is the lead of multiply mutually insulated inside, wherein two leads are responsible for portable detecting device 7 power supplies, all the other leads are responsible for finishing the communication of portable detecting device 7 and host computer 1, and sheathed cable 3 integral body are finished the suspension lifting of detecting device.Sheathed cable 3 two ends also are provided with RS-232/RS-485 modular converter 11, convert the RS-232 signal to RS-485 again by cable transmission, convert the RS-232 signal behind the in-position again to, are convenient to detect the long Distance Transmission of data.Position-measurement device comprises rotary encoder 8 sum counters 9, and rotary encoder 8 links to each other with roller a4, and the output signal of rotary encoder 8 is transferred to host computer 1 by USB interface after counter 9 is handled.
Described portable detecting device 7 is provided with cable connector 14, upper end follower 15, detected electrons chamber 16, lower end follower 17 and probe chamber 18 successively, cable connector 14 is used for connecting the connector of sheathed cable 3, and two followers are used for guaranteeing that the centering of detector probe group and the borehole wall is to guarantee measurement effect.Detected electrons chamber 16 and probe chamber 18 are water-stop, be used for holding Ultrasonic Detection electronic module group 12 and ultrasonic probe group 13 in two cavitys respectively, Ultrasonic Detection electronic module group 12 comprises power module 121, data transmission module 122, probe excitation and signal receive amplification module 124, analog to digital conversion and digital signal processing module 123, these module groups can be divided into digital module and analog module two classes by function, digital module be used for to receive the instruction of host computer and the parameter of detecting device is read or changes, also the ultrasonic signal that receives is carried out analog to digital conversion and directly handle drawing wall thickness corrosion or crack defect information, corresponding is analog to digital conversion and digital signal processing module 123.Sequential and instruction that analog module can provide by digital module encourage probe, receive again to pass digital module back after amplifications waits processings, the analog module correspondence be to pop one's head in to encourage and signal reception amplification module 124.Parameter is set reads and to revise by host computer by sheathed cable of Ultrasonic Detection electronic module.The defective data that host computer 1 will obtain through the RS-232 serial ports and integrate through the detector location data that USB interface obtains generates the testing result image.
Embodiment 1 ultrasonic probe group 13 comprises wall thickness corrosion detection probe group 131 and crack detection probe group 132, two probe groups are enumerated up and down and are positioned at same cavity, can be as shown in Figure 5, crack detection probe group 132 up, wall thickness corrosion detection probe group 131 below, also can be as shown in Figure 6, crack detection probe group 132 below, wall thickness corrodes detection probe group 131 up, and the probe of each probe group is arranged along cavity circumferencial direction hoop.The wall thickness corrosion detects and crack detection is once gone into the well, and test is carried out simultaneously.
Embodiment 2 ultrasonic probe groups 13 comprise wall thickness corrosion detection probe group 131 and crack detection probe group 132, two probe groups are positioned at two cavitys respectively, Fig. 8 is that the crack detection probe is organized chamber, 132 place, Fig. 7 is wall thickness corrosion chamber, detection probe group 131 place, and the probe of each probe group is arranged along cavity circumferencial direction hoop.The wall thickness corrosion detects and crack detection is gone into the well at twice, and test is finished.
Said detecting system installs each equipment earlier before using, and host computer 1, direct supply 10, cable roller 2 are positioned at inspection vehicle, and operating personnel are the operation detection system onboard.Cable is walked around two rollers of jacking gear successively, and roller b5 is supported on directly over the well head, roller a4 places well head one side, and cable one end is connected with host computer 1 with direct supply 10, and the other end is connected with connector on the detecting device.The testing process of detection system as shown in Figure 3, specific operation process is as follows:
(1), opening power, open the cable jacking gear, portable detecting device 7 is hung in the gas storage well well head, just having submerged with the detector probe group, the water surface is as the criterion in the well.
(2), open the detection software of host computer 1, carry out the initialization setting, arrange and finish the back and start scanning, system enters the autoscan state and begins detection; The initial state meeting prompting operation person input system initial setup file name of software, filename input back system can be configured by the parameter of file to system is set automatically, the operator can check one by one that the original signal of each passage is in normal operating state to guarantee system, the operator can arrange by the detector parameters of man-machine interface to the down-hole, by the scanning start button, system began scanning after setting was finished.
(3), starting jacking gear at the uniform velocity descends detecting device, Ultrasonic Detection electronic module group 12 is by instructing successively incentive probe emission ultrasonic signal and receive ultrasonic signal, amplify, obtain wall thickness corrosion or crack defect information by the digital signal processing module analyzing and processing after the analog to digital conversion, data result is passed to host computer 1 through sheathed cable 3; The lifting of detecting device and the work of probe are carried out simultaneously.Rotary encoder 8 synchronous workings send the pulse signal with handling cable length correspondence, and pulse signal converts detector location numerical value to after counter is handled, be uploaded to host computer through the USB mouth.
(4), host computer 1 is caught the data of coming to detecting device and is combined C scintigram and the strip-chart of back generation real-time update with the position data that position-measurement device provides the result is shown;
(5), detecting device arrives the shaft bottom, autoscan finishes, the memory scanning result of system also is back to original state;
(6), operator's log-on data is browsed the software evaluation scanning result, and is rechecked defect information with manual type; Point out if any wall thickness corrosion or crack defect in the scanning result, the operator should move on to system the relevant position and recheck ultrasonic signal in this position with manual type, the defective that autoscan obtains is confirmed, as confirmed as defective and should store the original signal at this place with as determining defects foundation more specifically.
(7), manually recheck and finish, the operator is raised to detecting device outside the well, finishes the detection of this well.
Claims (2)
1. well for storage borehole wall robotization comprehensive detection system, the portable detecting device (7) that comprises aboveground host computer (1), position-measurement device, cable jacking gear, direct supply (10) and down-hole, it is characterized in that: the portable detecting device of down-hole is connected with direct supply (10) with aboveground host computer (1) by sheathed cable (3), sheathed cable (3) is walked around position-measurement device and cable jacking gear, and sheathed cable (3) two ends also are provided with the communications protocol modular converter; Described cable jacking gear comprises the roller a(4 that is positioned at well head one side) and be positioned at roller b(5 directly over the well head), position-measurement device comprises rotary encoder (8) sum counter (9), rotary encoder (8) and roller a(4) link to each other, the output signal of rotary encoder (8) is transferred to host computer (1) by USB interface after counter (9) is handled; Described portable detecting device (7) is provided with cable connector (14), follower and two cavitys, two cavitys are water-stop, be respectively equipped with Ultrasonic Detection electronic module group (12) and ultrasonic probe group (13) in two cavitys, Ultrasonic Detection electronic module group (12) comprises power module (121), data transmission module (122), probe excitation and signal receive amplification module (124), analog to digital conversion and digital signal processing module (123), ultrasonic probe group (13) comprises wall thickness corrosion detection probe group (131) and crack detection probe group (132), and the probe of each probe group is arranged along cavity circumferencial direction hoop.
2. well for storage borehole wall robotization comprehensive detection system according to claim 1, it is characterized in that: described sheathed cable (3) is polycore cable, the cable outside is surrounded by ground shield, there is the lead of multiply mutually insulated inside, wherein two leads are responsible for portable detecting device (7) power supply, and all the other leads are responsible for finishing the communication of portable detecting device (7) and host computer (1).
3. well for storage borehole wall robotization comprehensive detection system according to claim 1 and 2, it is characterized in that: sheathed cable (3) two ends are provided with RS-232/RS-485 modular converter (11).
4. well for storage borehole wall robotization comprehensive detection system according to claim 1 and 2, it is characterized in that: sheathed cable (3) two ends are provided with the RS-232/RS-422 modular converter.
5. well for storage borehole wall robotization comprehensive detection system according to claim 1 is characterized in that: wall thickness corrosion detection probe group (131) and crack detection probe group (132) are enumerated up and down in same cavity.
6. well for storage borehole wall robotization comprehensive detection system according to claim 1 is characterized in that: wall thickness corrosion detection probe group (131) and crack detection probe group (132) branch are positioned at two cavitys.
7. well for storage borehole wall robotization comprehensive detection system according to claim 1, it is characterized in that: described host computer (1) is notebook computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320044079 CN203069555U (en) | 2013-01-28 | 2013-01-28 | Automatic comprehensive detection system for gas storage well wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320044079 CN203069555U (en) | 2013-01-28 | 2013-01-28 | Automatic comprehensive detection system for gas storage well wall |
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| CN203069555U true CN203069555U (en) | 2013-07-17 |
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| CN 201320044079 Expired - Lifetime CN203069555U (en) | 2013-01-28 | 2013-01-28 | Automatic comprehensive detection system for gas storage well wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134855A (en) * | 2013-01-28 | 2013-06-05 | 张峰 | Underground gas storage well wall automation comprehensive detection system and detection method |
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2013
- 2013-01-28 CN CN 201320044079 patent/CN203069555U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134855A (en) * | 2013-01-28 | 2013-06-05 | 张峰 | Underground gas storage well wall automation comprehensive detection system and detection method |
| CN103134855B (en) * | 2013-01-28 | 2015-08-12 | 张峰 | Well for storage borehole wall robotization comprehensive detection system and detection method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: LI JIAN Effective date: 20141016 Owner name: SHANDONG SPECIAL EQUIPMENT INSPECTION AND RESEARCH Free format text: FORMER OWNER: ZHANG FENG Effective date: 20141016 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141016 Address after: Tianchen Avenue high tech Zone of Ji'nan City, Shandong Province, No. 939 250101 Patentee after: SHANDONG SPECIAL EQUIPMENT INSPECTION INSTITUTE Address before: Tianchen Avenue high tech Zone of Ji'nan City, Shandong Province, No. 939 250101 Patentee before: Zhang Feng Patentee before: Li Jian |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170320 Address after: High tech Zone Tianchen road Ji'nan City, Shandong province 250101 No. 939 Patentee after: SHANDONG SPECIAL EQUIPMENT INSPECTION INSTITUTE LUTE INSPECTION AND TESTING CO.,LTD. Address before: Tianchen Avenue high tech Zone of Ji'nan City, Shandong Province, No. 939 250101 Patentee before: SHANDONG SPECIAL EQUIPMENT INSPECTION INSTITUTE |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181017 Address after: No. 939, Tianchen Road, Ji'nan high tech Zone, Shandong, Shandong Co-patentee after: SHANGHAI DINGSHENG ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee after: SHANDONG SPECIAL EQUIPMENT INSPECTION INSTITUTE LUTE INSPECTION AND TESTING CO.,LTD. Address before: No. 939, Tianchen Road, Ji'nan high tech Zone, Shandong, Shandong Patentee before: SHANDONG SPECIAL EQUIPMENT INSPECTION INSTITUTE LUTE INSPECTION AND TESTING CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130717 |