CN202018416U - Novel online corrosion monitoring auxiliary device - Google Patents
Novel online corrosion monitoring auxiliary device Download PDFInfo
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- CN202018416U CN202018416U CN2011200440183U CN201120044018U CN202018416U CN 202018416 U CN202018416 U CN 202018416U CN 2011200440183 U CN2011200440183 U CN 2011200440183U CN 201120044018 U CN201120044018 U CN 201120044018U CN 202018416 U CN202018416 U CN 202018416U
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- corrosion
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- corrosion monitoring
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Abstract
The utility model discloses a novel online corrosion monitoring auxiliary device, which comprises a monitoring pipeline. A corrosion monitoring opening is disposed on the top of the fish-bellied monitoring pipeline, a liquid accumulation opening is arranged at the bottom of the monitoring pipeline, a blow-off opening is further disposed beside the liquid accumulation opening, a blowing opening is arranged at one end of the top of the monitoring pipeline, an emptying opening is disposed at the other end of the top of the monitoring pipeline, and a preserved opening is further arranged beside the corrosion monitoring opening. The novel online corrosion monitoring auxiliary device has the advantages that the novel online corrosion monitoring auxiliary device can realize online monitoring of gathering and delivering pipelines under different working conditions and can feed back internal corrosion conditions of the pipelines timely, comprehensively and scientifically.
Description
Technical field
The utility model relates to a kind of corrosion monitoring servicing unit, especially relates to a kind of surface gathering and transferring pipeline on-line corrosion monitoring servicing unit.
Background technology
Along with continually developing of domestic and international hydrocarbon resources, the acid-soluble oil gas field of high-hydrogen sulfide, carbon dioxide is more and more, and the Corrosion of Pipeline problem becomes more and more serious, and this directly has influence on the safety in production of oil gas field.For developing the acid-soluble oil gas field smoothly, except carrying out reasonable, effective anti-corrosion measure, also must take real-time on-line corrosion monitoring means, understand the pipeline corrosion situation and change, so that take corresponding measure in time, the safe operation of guarantee pipeline.
For understanding online corrosive pipeline actual conditions, corrosion monitoring technology commonly used both at home and abroad at present mainly contains electric-resistivity method, electrochemical process, corrosion probe method, weightless hanging slice method etc., specific operation process is by connect tee pipe fitting on pipeline, corrosion monitoring element (corrosion probe, weightless lacing film etc.) links to each other with tee pipe fitting, and be installed in line fluid institute through the position, judge the actual corrosion condition of pipeline by situation of change before and after the contrast corrosion monitoring element.
People such as the Li Qiong Wei of PetroChina Company Ltd. have invented a kind of high pressure line on-line corrosion monitoring servicing unit, it is characterized in that: fix a threeway respectively at the entrance and exit two ends of by-pass valve control, two threeways are connected with sub valve respectively, be connected with monitoring pipe between two sub valves, monitoring pipe is welded by flange, elbow and straight tube.Vertical welding is connected to 3～5 short tubes on straight tube, and corrosion-susceptible component holder body and sensitive element external security protector are installed on the short tube top.By the corrosion-susceptible component holder body, the corrosion-susceptible element that a plurality of contrast tests are used is installed in the monitoring pipe, and protects monitoring safety with sensitive element external security protector.This device can make multiple corrosion-susceptible element on-line monitoring simultaneously, when changing the corrosion-susceptible element, can utilize the bypass circulation valve switch, switch the pressure release of high-pressure natural gas flow process after, safety is changed the corrosion-susceptible element under condition not with pressure.But this apparatus structure is comparatively complicated, and actual operation is not strong.For long distance pipeline, because the monitoring pipeline is consistent and shorter with online pipe shape, can not reflect that there is the corrosion situation at the comparatively serious position of hydrops, corrosive pipeline in pipeline duct bottom in growing apart from course of conveying, promptly can not comparatively comprehensively reflect pipe interior corrosion situation.
There is the scholar to adopt electrochemical method that pipe interior corrosion situation is monitored the (patent No.: US6776889B2) abroad.Concrete operation method for earlier with in the loop between electrode the DC current of (bipolar electrode or three electrodes) reduce to zero, then the alternating current noise that produces because of corrosion is tested, and is judged the pipeline corrosion situation with this.This monitoring method has conveniently characteristics, but a little less than the anti-interference, data instability, operability are not strong.
The utility model content
The utility model has overcome shortcoming of the prior art, and a kind of novel on-line corrosion monitoring servicing unit is provided, and can simulate the most serious pipeline of corrosion in the gathering line, and can feed back pipe interior corrosion situation timely, comprehensive, scientifically.
The technical solution of the utility model is: a kind of novel on-line corrosion monitoring servicing unit, comprise the monitoring pipeline, and described monitoring pipeline is a fish belly shape, is provided with the corrosion monitoring mouth at the top of monitoring pipeline, is provided with the hydrops mouth in the bottom of monitoring pipeline.
At the other sewage draining exit that also is provided with of described hydrops mouth; End at monitoring pipeline top is provided with the purging mouth, and the other end is provided with drain; In the other reserved opening that also is provided with of described corrosion monitoring mouth.
Compared with prior art, the utility model has the advantages that: the utility model can carry out on-line monitoring to the gathering line under the different operating modes, and feedback pipe interior that can be timely, comprehensive, scientifical corrosion situation.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of novel on-line corrosion monitoring servicing unit as shown in Figure 1, is online pipe side bypass, comprises first cylindrical shell 1 and second cylindrical shell 2 that is arranged on the first cylindrical shell two ends, is welded to connect by concentric reducer 3 between the two; Flange by air intake opening 21 and 27 two ends, gas outlet links to each other with pipeline to be detected, the monitoring pipeline (i.e. the pipeline of first cylindrical shell 1, concentric reducer 3 and second cylindrical shell, 2 formations) and the unconventional cylinder bodily form, but be designed to have the fish belly shape of bossing, monitoring duct bottom (promptly on first cylindrical shell) fish belly shape is provided with hydrops mouth 28, this device can be simulated length apart from the low-lying hydrops of gathering line position like this, i.e. the most serious pipeline of corrosion in the gathering line.Sewage draining exit 29 is positioned at the monitoring duct bottom, to prevent the dirt blocking pipe.Be provided with corrosion monitoring mouth 24 at the first cylindrical shell top,, gather pipeline internal corrosion information by corrosion monitoring elements such as corrosion probe, weightless lacing film are installed.Purge mouth 22 and be positioned at the first cylindrical shell end, can replace gas in the pipeline, drain 26 is positioned at the first cylindrical shell other end, under the valve closing situation of two ends, carry out the emptying and the displacement of unstripped gas, the monitoring pipeline of fish belly shape is removed under not stopping production situation, understood thereby the corrosive pipeline situation is carried out integral body.The corrosion monitoring mouth is other also to be provided with reserved opening 23, can corresponding corrosion monitoring servicing unit be installed according to different actual conditions.
Claims (4)
1. a novel on-line corrosion monitoring servicing unit comprises the monitoring pipeline, it is characterized in that: described monitoring pipeline is a fish belly shape, is provided with the corrosion monitoring mouth at the top of monitoring pipeline, is provided with the hydrops mouth in the bottom of monitoring pipeline.
2. novel on-line corrosion monitoring servicing unit according to claim 1 is characterized in that: at the other sewage draining exit that also is provided with of described hydrops mouth.
3. novel on-line corrosion monitoring servicing unit according to claim 1 is characterized in that: be provided with in an end at monitoring pipeline top and purge mouth, the other end is provided with drain.
4. novel on-line corrosion monitoring servicing unit according to claim 1 is characterized in that: in the other reserved opening that also is provided with of described corrosion monitoring mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200440183U CN202018416U (en) | 2011-02-22 | 2011-02-22 | Novel online corrosion monitoring auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200440183U CN202018416U (en) | 2011-02-22 | 2011-02-22 | Novel online corrosion monitoring auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018416U true CN202018416U (en) | 2011-10-26 |
Family
ID=44812085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200440183U Expired - Lifetime CN202018416U (en) | 2011-02-22 | 2011-02-22 | Novel online corrosion monitoring auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018416U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439247A (en) * | 2013-09-04 | 2013-12-11 | 南京佳业检测工程有限公司 | Online corrosion monitoring device for natural gas pipeline |
| CN107449730A (en) * | 2017-08-28 | 2017-12-08 | 天津大学 | 90 ° of elbow metal erosion electrochemical testing devices in a kind of Flow Corrosion medium |
-
2011
- 2011-02-22 CN CN2011200440183U patent/CN202018416U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439247A (en) * | 2013-09-04 | 2013-12-11 | 南京佳业检测工程有限公司 | Online corrosion monitoring device for natural gas pipeline |
| CN107449730A (en) * | 2017-08-28 | 2017-12-08 | 天津大学 | 90 ° of elbow metal erosion electrochemical testing devices in a kind of Flow Corrosion medium |
| CN107449730B (en) * | 2017-08-28 | 2023-08-25 | 天津大学 | Electrochemical testing device for corrosion of 90-degree elbow metal in flowing corrosive medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180109 Address after: 610041 Chengdu high tech Zone, Sichuan province sublimation Road No. 6 Patentee after: China Petroleum Engineering Construction Co Ltd Address before: 610017 Sichuan province Chengdu Xiaoguan Temple Backstreet No. 25 Patentee before: Engineering Design Co., Ltd., China Petroleum Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |