CN219036316U - Natural gas pipeline hydrops corrosion monitoring device - Google Patents

Natural gas pipeline hydrops corrosion monitoring device Download PDF

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Publication number
CN219036316U
CN219036316U CN202320005483.9U CN202320005483U CN219036316U CN 219036316 U CN219036316 U CN 219036316U CN 202320005483 U CN202320005483 U CN 202320005483U CN 219036316 U CN219036316 U CN 219036316U
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China
Prior art keywords
corrosion
hanging
pipeline
natural gas
effusion
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CN202320005483.9U
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韩杰林
韩晓慧
傅谋昊
万伟
李超
贾威
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No1 Gas Collcting Plant Huabei Oil And Gas Company Sinopec Corp
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No1 Gas Collcting Plant Huabei Oil And Gas Company Sinopec Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/30Use of alternative fuels, e.g. biofuels

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Abstract

The utility model provides a hanging piece method hydrops corrosion monitoring device in a natural gas pipeline, which comprises a hanging piece hanging rod (1), a tail nut (2), an insulating gasket (3), a hydrops chamber (4), a welding joint (5), a head nut (6), a corrosion hanging piece (7), a valve cover (8), a valve (9) and a valve rod (10), wherein the hanging piece hanging rod (1) is connected with the tail nut (2) and the head nut (6), one end of the welding joint (5) is connected with the hanging piece hanging rod (1), six groups of insulating gaskets (3) and seven groups of corrosion hanging pieces (7) are arranged between the nuts, the corrosion hanging pieces (7) are matched with threads of the hanging piece hanging rod (1), and the corrosion hanging pieces are fixed in a threaded connection mode. The device has the beneficial effects that the bottom of the device is provided with the effusion chamber (4), corrosion information in the pipeline is accurately captured by using corrosion hanging pieces (7) at different positions, the corrosion degree of the pipeline is comprehensively evaluated on site, targeted corrosion protection measures are timely taken, and the safe and stable operation of the pipeline is ensured.

Description

Natural gas pipeline hydrops corrosion monitoring device
Technical Field
The utility model relates to the technical field of corrosion detection in natural gas pipelines, in particular to a device for monitoring the corrosion of a liquid accumulation in a natural gas pipeline.
Background
Along with the change of the gathering and transportation mode of the large Niu Deqi field ground system from the high-pressure mode to the medium-pressure mode, the existing technology of the gas gathering station has insignificant dehydration and separation effects, and the dew point of the natural gas water at the outlet of the gas gathering station does not reach the standard, so that the accumulated liquid begins to exist at the low-lying position of the pipeline. Meanwhile, with the development of the ancient world gas reservoir under the large Niu Deqi field, the sulfur content of the gas well is gradually increased, the whole gas well belongs to the low-micro sulfur content range, and the sulfur-containing gas well CO 2 The content is relatively high, and the average content is 3.61 percent. Thus, the ground gathering system is caused to be at H 2 S/CO 2 Corrosion systems under co-existence conditions. Under the system, the corrosion mechanisms have competitive and synergistic effects, H 2 The presence of S can release a large amount of H through a cathode reaction + Accelerating CO 2 Corrosion can be slowed down by forming FeS sediment to cover the surface of the metal matrix, and the complex corrosion mechanism brings great difficulty to corrosion monitoring.
The corrosion hanging method is one of the most common and basic on-site corrosion monitoring methods, and has large-scale application in gas fields at home and abroad. The corrosion hanging piece method is to fix a metal test piece which is made of the same material as a pipeline in the pipeline, take out the hanging piece after a certain running time, and adopt a series of means such as weightlessness test, microscopic morphology analysis, material composition analysis and the like on the hanging piece so as to capture corrosion information in the pipeline and evaluate the corrosion degree of the pipeline.
However, the corrosion monitoring device commonly used at present is mainly limited to the problems that the number of the corrosion hanging pieces which can be installed is small, and the corrosion degree of the accumulated liquid to the pipeline cannot be truly reflected. Based on the above, the utility model provides a natural gas pipeline effusion corrosion monitoring device, which is mainly characterized in that a effusion chamber communicated with a pipeline is arranged at the bottom of the device, so that a corrosion hanging piece at the lowest end of the device can be immersed in pipeline effusion; meanwhile, seven groups of corrosion hanging pieces at different positions are additionally arranged to accurately capture corrosion information in the pipeline, and the corrosion condition in the natural gas pipeline is intuitively reflected.
Disclosure of Invention
The utility model mainly overcomes the defects in the prior art, and provides a device for monitoring the effusion corrosion of a natural gas pipeline.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a natural gas pipeline hydrops corrosion monitoring device, its characterized in that, including link suspension pole (1), afterbody nut (2), insulating washer (3), hydrops room (4), welded joint (5), head nut (6), corrosion link (7), valve gap (8), valve (9) and valve rod (10), link to each other with afterbody nut (2), head nut (6) link to each other one end of welded joint (5) with link to each other with link suspension pole (1), be equipped with six insulating washer (3) of group and seven corrosion link (7) of group between the nut, corrosion link (7) and link suspension pole (1) screw thread phase-match realize the fixed of corrosion link through threaded connection's mode. The device can realize corrosion monitoring modes of different positions and different hanging pieces by adjusting the positions and the number of the insulating gaskets (3).
The technical scheme of the utility model also comprises that the bottom of the device is provided with a effusion chamber (4) communicated with the pipeline, and the effusion chamber (4) is in a ladder shape.
The technical scheme of the utility model also comprises that the width of the liquid accumulation chamber (4) at the bottom of the device is larger than that of the corrosion hanging piece (7), the hanging piece can be completely arranged in the liquid accumulation chamber (4), the contact area of the hanging piece and a corrosion medium can be increased, and the corrosion degree of the bottom of the pipeline is truly reflected.
The technical scheme of the utility model also comprises that the hanging piece hanging rod (1) is fixed in a pipeline by additionally arranging the head nut (6) and the tail nut (2) at two ends of the hanging piece hanging rod (1).
The technical scheme of the utility model further comprises that in order to prevent inaccurate corrosion information caused by mutual influence of corrosion hanging pieces (7) at different positions, insulating gaskets (3) are additionally arranged between the corrosion hanging pieces (7), and a group of corrosion hanging pieces (7) are fixedly arranged between every two groups of insulating gaskets (3).
The technical scheme of the utility model also comprises six groups of insulating gaskets (3) and seven groups of corrosion hanging pieces (7).
The technical scheme of the utility model also comprises that the device can adjust the number and the positions of the corrosion hanging pieces (7) by adjusting the positions and the number of the insulating gaskets (3) so as to realize the purpose of monitoring the corrosion conditions of different positions in the pipeline.
The beneficial effects are that:
compared with the prior art, the utility model has the following beneficial effects:
the bottom of the device is provided with the effusion chamber (4), seven groups of corrosion hanging pieces (7) at different positions are utilized to accurately capture corrosion information in the pipeline, the corrosion condition in the natural gas pipeline is visually reflected, the on-site maintenance personnel can evaluate the corrosion degree of the pipeline comprehensively, targeted protective measures can be implemented on the pipeline in time, and the safe, stable and efficient operation of the gathering and transportation system is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic side elevational view of the present utility model;
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Examples
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a natural gas pipeline hydrops corrosion monitoring device, its characterized in that, including link suspension pole (1), afterbody nut (2), insulating washer (3), hydrops room (4), welded joint (5), head nut (6), corrosion link (7), valve gap (8), valve (9) and valve rod (10), link to each other with afterbody nut (2), head nut (6) link to each other one end of welded joint (5) with link to each other with link suspension pole (1), be equipped with six insulating washer (3) of group and seven corrosion link (7) of group between the nut, corrosion link (7) and link suspension pole (1) screw thread phase-match realize the fixed of corrosion link through threaded connection's mode. The device can realize corrosion monitoring modes of different positions and different hanging pieces by adjusting the positions and the number of the insulating gaskets (3).
Particularly, the bottom of the device is provided with the effusion chamber (4) communicated with the pipeline, the effusion chamber (4) is trapezoid, the width of the effusion chamber (4) at the bottom of the device is larger than that of the corrosion hanging piece (7), the corrosion hanging piece (7) can be completely arranged in the effusion chamber (4), the contact area of the corrosion hanging piece (7) and a corrosion medium is increased, and the corrosion degree of the bottom of the pipeline is truly reflected.
In particular, screw thread matching is adopted between the hanging piece hanging rod (1), the head nut (6) and the tail nut (2), the fixation between the hanging piece hanging rod (1) and the head nut (6) is realized by adopting a screw thread connection mode, the fixation between the hanging piece hanging rod and the hanging piece hanging rod (1) is realized by adopting a screw thread connection mode, and the falling and losing of the corrosion hanging piece in the corrosion monitoring process are prevented.
In particular, in order to prevent inaccurate corrosion information caused by mutual influence of corrosion hanging pieces (7) at different positions, insulating gaskets (3) are additionally arranged between two groups of corrosion hanging pieces (7), and the positions and the number of the corrosion hanging pieces (7) can be adjusted by adjusting the positions and the number of the insulating gaskets (3).
In particular, the device can accommodate at most seven groups of corrosion hanging pieces (7), and can perform corrosion monitoring at different positions in a pipeline.
Particularly, the corrosion hanging pieces (7) in the device are horizontally arranged along the pipeline laying direction, so that the contact area between the corrosion hanging pieces 7 and a corrosion medium can be increased, and the corrosion information of the pipeline can be truly reflected.
In particular, the hanging piece hanging rod (1) is fixed through a welding joint (5) at the bottom of the device, so that the hanging rod is prevented from falling and losing in the corrosion monitoring process.
While there has been shown and described fundamental features of the utility model and advantages of the utility model, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Claims (7)

1. The utility model provides a natural gas pipeline hydrops corrosion monitoring device, its characterized in that includes link plate hanging rod (1), afterbody nut (2), insulating washer (3), hydrops room (4), welded joint (5), head nut (6), corrosion link plate (7), valve gap (8), valve (9) and valve rod (10), link plate hanging rod (1) links to each other with afterbody nut (2), head nut (6), and one end of welded joint (5) links to each other with link plate hanging rod (1), is equipped with six sets of insulating washer (3) and seven sets of corrosion link plates (7) between the nut, and corrosion link plate (7) and link plate hanging rod (1) screw thread phase match realizes the fixed of corrosion link plate through threaded connection's mode; the device can realize corrosion monitoring modes of different positions and different hanging pieces by adjusting the positions and the number of the insulating gaskets (3).
2. A natural gas pipeline effusion corrosion monitoring device as claimed in claim 1, characterized in that the bottom of the device is provided with a effusion chamber (4) communicated with the pipeline, and the effusion chamber (4) is in a trapezoid shape.
3. A natural gas pipeline effusion corrosion monitoring device as claimed in claim 1, characterized in that the width of the effusion chamber (4) at the bottom of the device is larger than the width of the corrosion hanging piece (7), the hanging piece can be completely arranged in the effusion chamber (4), the contact area of the corrosion hanging piece (7) and a corrosion medium can be increased, and the corrosion degree of the bottom of the pipeline is truly reflected.
4. The device for monitoring the hydrops corrosion of the natural gas pipeline according to claim 1, wherein the hanging piece hanging rod (1) is fixed in the pipeline by additionally arranging a head nut (6) and a tail nut (2) at two ends of the hanging piece hanging rod (1).
5. A natural gas pipeline effusion corrosion monitoring device as claimed in claim 1, characterized in that, in order to prevent corrosion information inaccuracy caused by corrosion lugs (7) between different positions affecting each other, insulating gaskets (3) are additionally arranged between the corrosion lugs (7), and a group of corrosion lugs (7) is fixedly arranged between every two groups of insulating gaskets (3).
6. A natural gas pipeline effusion corrosion monitoring device as claimed in claim 1, characterized in that the number of insulating gaskets (3) is six and the number of corrosion hangers (7) is seven.
7. The device for monitoring the corrosion of the natural gas pipeline effusion according to claim 1 is characterized in that the device can realize the purpose of monitoring the corrosion conditions of different positions in the pipeline by adjusting the number and the number of the corrosion hanging pieces (7) through adjusting the positions and the number of the insulating gaskets (3).
CN202320005483.9U 2023-01-03 2023-01-03 Natural gas pipeline hydrops corrosion monitoring device Active CN219036316U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320005483.9U CN219036316U (en) 2023-01-03 2023-01-03 Natural gas pipeline hydrops corrosion monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320005483.9U CN219036316U (en) 2023-01-03 2023-01-03 Natural gas pipeline hydrops corrosion monitoring device

Publications (1)

Publication Number Publication Date
CN219036316U true CN219036316U (en) 2023-05-16

Family

ID=86276469

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320005483.9U Active CN219036316U (en) 2023-01-03 2023-01-03 Natural gas pipeline hydrops corrosion monitoring device

Country Status (1)

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CN (1) CN219036316U (en)

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