CN201198492Y - Cathodic protection equipment for high pressure underground gas storage well - Google Patents
Cathodic protection equipment for high pressure underground gas storage well Download PDFInfo
- Publication number
- CN201198492Y CN201198492Y CNU2008200627342U CN200820062734U CN201198492Y CN 201198492 Y CN201198492 Y CN 201198492Y CN U2008200627342 U CNU2008200627342 U CN U2008200627342U CN 200820062734 U CN200820062734 U CN 200820062734U CN 201198492 Y CN201198492 Y CN 201198492Y
- Authority
- CN
- China
- Prior art keywords
- gas storage
- storage well
- cathodic protection
- high pressure
- protection equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000004210 cathodic protection Methods 0.000 title claims abstract description 11
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 11
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 239000002689 soil Substances 0.000 abstract description 6
- 230000003245 working effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910000365 copper sulfate Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Images
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- Prevention Of Electric Corrosion (AREA)
Abstract
The utility model discloses a cathodic protection device of a high-voltage underground gas storage well; a plurality of anode bodies (2) are serially connected to a bushing of a high-voltage gas storage well (1) after being connected with each other in parallelism. The anode bodies (2) are magaluma; the magaluma with negative potential is connected with the bushing with positive potential of the gas storage well (1). The device prolongs the service life of the bushing, and reduces the corrosion speed of the soil on the bushing, and is convenient to be constructed, and has low cost.
Description
Technical field
The utility model relates to protector, especially relates to a kind of high pressure underground gas well cathodic protection equipment.
Background technology
Because gas storage well length is little; borehole wall corrodibility is strong in being; therefore gas storage well steel sleeve pipe is easy to suffer the galvanic corrosion of soil; in case be subjected to galvanic corrosion; to shorten work-ing life, suffer the galvanic corrosion of soil for preventing gas storage well steel sleeve pipe, prolong sleeve pipe work-ing life; must adopt sfgd., slow down soil to greatest extent the telescopic corrosion speed.
The utility model content
The purpose of this utility model provides a kind of easy construction, expense is low, and the high pressure underground gas well cathodic protection equipment that can prolong gas storage well telescopic work-ing life.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of high pressure underground gas well cathodic protection equipment, a plurality of anode bodies parallel connections are after on the sleeve pipe of wire serial connection high-pressure gas storage well.
Described anode bodies is an aluminum magnesium alloy, the aluminum magnesium alloy that current potential is negative and the gas storage well of electropotential calibration telescopic joint.
The sleeve pipe of described gas storage well is connected with the potential test case through the potential test wire.
The utility model adopts the negative aluminum magnesium alloy of current potential to connect with the protected sleeved pipe of the gas storage well of electropotential calibration; the negative aluminum magnesium alloy of electropotential becomes anode and is corroded in the outward current process; form galvanic cell at the borehole wall; as the protection power supply; sleeve pipe becomes negative electrode and is protected like this; prolonged telescopic work-ing life, slowed down soil the telescopic corrosion speed.The utility model adopts aluminum magnesium alloy as anode bodies, and cost is lower, and the aluminum magnesium alloy anode bodies is imbedded in subsurface, and construction is also convenient, thereby the utility model has been selected easy construction for use, lower-cost sacrificial protection mode.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of high pressure underground gas well cathodic protection equipment of the utility model, a plurality of anode bodies 2 parallel connections are after on the sleeve pipe of wire 3 serial connection high-pressure gas storage wells 1.Described anode bodies 2 is aluminum magnesium alloy or magnesium alloy, the aluminum magnesium alloy that current potential is negative and the gas storage well 1 of electropotential calibration telescopic joint.The sleeve pipe of described gas storage well 1 is connected with potential test case 4 through potential test wire 5.Galvanic protection standard: pipeline negative polarization current potential (not containing the pipe-to-soil potential that IR falls): minimum :-0.85V (copper sulfate reference electrode relatively); Maximum :-1.15V (copper sulfate reference electrode relatively).Detective pole (potential test case 4) is established electricity and is established 1 of testing current stake on every mouthful of gas storage well sleeve pipe.Running protection: cathodic protection potential standard :-0.85V～-1.5V (with respect to the copper/saturated copper sulphate electrode), minimum protective potential-0.95V is got in the utility model protection, surveys the once pipeline protection potential, is once surveying the sacrificial anode outward current one time in every month.Sacrificial protection section current potential is defeated by-during 1.1V, sacrificial anode outlet line in the partial test stake and sleeve pipe outlet line can be disconnected in the junction, treat that the electrosurgical trocar displacement is just when-0.9V, again with its all or part of connection.
Claims (3)
1. high pressure underground gas well cathodic protection equipment is characterized in that: (2) parallel connection of a plurality of anode bodies is after on the sleeve pipe of wire (3) serial connection high-pressure gas storage well (1).
2. high pressure underground gas well cathodic protection equipment according to claim 1 is characterized in that: described anode bodies (2) is an aluminum magnesium alloy, the aluminum magnesium alloy that current potential is negative and the gas storage well (1) of electropotential calibration telescopic joint.
3. high pressure underground gas well cathodic protection equipment according to claim 1 and 2 is characterized in that: the sleeve pipe of described gas storage well (1) is connected with potential test case (4) through potential test wire (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200627342U CN201198492Y (en) | 2008-03-31 | 2008-03-31 | Cathodic protection equipment for high pressure underground gas storage well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200627342U CN201198492Y (en) | 2008-03-31 | 2008-03-31 | Cathodic protection equipment for high pressure underground gas storage well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201198492Y true CN201198492Y (en) | 2009-02-25 |
Family
ID=40449650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200627342U Expired - Fee Related CN201198492Y (en) | 2008-03-31 | 2008-03-31 | Cathodic protection equipment for high pressure underground gas storage well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201198492Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116262973A (en) * | 2021-12-13 | 2023-06-16 | 中国石油天然气股份有限公司 | Auxiliary anode device for cluster well group cathodic protection system |
| CN120778622A (en) * | 2025-08-26 | 2025-10-14 | 金卡智能集团股份有限公司 | Gas pipeline corrosion prevention method, system, electronic equipment and storage medium |
-
2008
- 2008-03-31 CN CNU2008200627342U patent/CN201198492Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116262973A (en) * | 2021-12-13 | 2023-06-16 | 中国石油天然气股份有限公司 | Auxiliary anode device for cluster well group cathodic protection system |
| CN120778622A (en) * | 2025-08-26 | 2025-10-14 | 金卡智能集团股份有限公司 | Gas pipeline corrosion prevention method, system, electronic equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090225 Termination date: 20100331 |