CN104109864A - Replaceable anode composite set used in combustion gas electric protection system and laying method - Google Patents
Replaceable anode composite set used in combustion gas electric protection system and laying method Download PDFInfo
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- CN104109864A CN104109864A CN201410286438.0A CN201410286438A CN104109864A CN 104109864 A CN104109864 A CN 104109864A CN 201410286438 A CN201410286438 A CN 201410286438A CN 104109864 A CN104109864 A CN 104109864A
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Abstract
The invention relates to a replaceable anode composite set used in a combustion gas electric protection system and a laying method, the composite set is arranged in an operating pit, the protected combustion gas pipelines are buried in an operating pit area; a backfill is filled in the operating pit, an improvement anode bar is inserted in the backfill, the improvement anode bar is connected to the protected combustion gas pipeline through a cable; a well cycle/well lid apparatus is arranged at top of the operating pit, and is arranged on the pavement of road or ground surface of place; the bottom termination of the improvement anode bar is in a sharp shape, a cable junction terminal is arranged on a steel core of the upper segment of the improvement anode bar, a connection terminal is arranged on the edge wall of the operating pit; and the improvement anode bar is connected to the protected combustion gas pipeline through at least two segments of cable and connection terminal. The replaceable anode composite set can satisfy the requirement for replacing anode on busy road or other places which are not conveniently excavated, a structure of the replaceable anode composite set is simple; construction is rapid and convenient, engineering construction and maintenance cost can be greatly reduced, pipeline life is prolonged, and economic and social benefits are obvious.
Description
Technical field
The invention belongs to urban construction technical field, relate in particular to a kind of replaceable anodic combination unit and laying method being applied in city gas electric protection system.
Background technology
Along with the propelling of China's energy-saving and environmental protection policy, city gas constantly increases as its consumption of clean energy, and gas pipeline construction is greatly developed.According to national laws and regulations requirement, newly-built and in-service town gas pipe must adopt preservative coat to be aided with the corrosion control system of galvanic protection.According to the environmental quality of city gas, the overwhelming majority who is applied in city gas electric protection system is sacrificial anode mode.Sacrificial anode adopts magnesium, zinc, aluminium class active metal, is a kind of consumable material, has certain work-ing life, is exhausted and needs to supplement in time.Because traditional sacrificial anode directly buried installation is in town environment, especially, in the road of heavy traffic or the place of other inconvenience excavation operations, changes anode and be difficult to realize.
For the protection of the tradition of sacrificial anode, fill out construction materials contract and generally by gypsum, wilkinite or diatomite and sodium sulfate, formed, in soil, bury underground for a long time, can harden to cause because of water suction and cannot change anode bar.
Summary of the invention
Main purpose of the present invention is to provide a kind of replaceable anodic combination unit for combustion gas electric protection system of being convenient to replacing.
For achieving the above object, the present invention takes following design:
For a replaceable anodic combination unit for combustion gas electric protection system, this device installation is in an operating pit, and this operating pit region is embedded with protected gas pipeline; And in described operating pit, be filled with the construction materials contract of filling out of this device, fill out in construction materials contract and be inserted with anode bar, this anode bar is connected with protected gas pipeline by cable;
At the top of described operating pit, be provided with well curb well lid device, this well curb well lid device is installed on the road surface of road or the ground surface in place;
Described anode bar adopts and improves anode bar, and it vertically inserts and fill out in construction materials contract, and the bottom head of this improvement anode bar is tip shape, on the steel core of improvement anode bar epimere, establishes cable splicing ear;
On the wall of operating pit limit and the well curb well lid device place that is bordering on top be provided with connection terminal;
Described improvement anode bar is realized and being connected of protected gas pipeline by two sections of cables: one end of one section of cable is connected with the cable splicing ear on anode bar steel core, and the other end is connected with the connection terminal on the wall of operating pit limit; One end of another section of cable is connected with the connection terminal on the wall of operating pit limit, and the other end is directly connected with protected gas pipeline.
In described replaceable anodic combination unit, improve the upper top of anode bar with end cap; The bottom head of described improvement anode bar tip shape is wedge shape, quadrangular pyramid shape.
Another object of the present invention is to provide a kind of laying method of above-mentioned replaceable anodic combination unit, and it can meet the requirement of changing anode in the place of the road of heavy traffic or other inconvenience excavation operations.
For achieving the above object, the present invention takes following design:
Laying and a using method of replaceable anodic combination unit described above, its method steps is as follows:
1) when piping installation, adopt thermit welding mode by one section of cable welding on protected gas pipeline, by cable leading to planning to build near well curb well lid device;
2), after protected gas pipeline backfill, optimization is filled out to construction materials contract and be poured in working pit;
3) walling crib is installed, and installs connection terminal on the working pit limit wall of nearly this walling crib, the cable that protected gas pipeline is drawn is connected with the connection terminal at this place;
4) anode bar being inserted to optimization fills out in construction materials contract;
5) anode bar is connected with connection terminal from tape cable;
6) spread water and fill out construction materials contract to optimizing, after meeting the demands, buckle well lid, come into operation;
7) time limit of service then, is opened well lid, and disconnection connection terminal place is connected with anode bar cable;
8) utilize instrument to take out inefficacy anode bar;
9) repeating step 4)～6), new anode bar is come into operation.
Described replaceable anodic combination unit lay and using method in, described anode bar adopts improvement anode bar, the anode bar of this improvement at least has one of following feature:
1) there is the bottom head of tip shape;
2) upper top is with end cap.
Described replaceable anodic combination unit lay and using method in, the bottom head of described anode bar tip shape is wedge shape or quadrangular pyramid shape.
Described replaceable anodic combination unit lay and using method in, the construction materials contract of filling out adopting is a kind of in following formulation material:
1. sand and sodium sulfate, wherein both weight percents are: sand is 50～95%; Sodium sulfate is 5%～50%;
2. husky, wilkinite and sodium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～30%; Sodium sulfate is 5%～30%;
3. sand+wilkinite+magnesium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～35%; Magnesium sulfate is 5%～25%.
Advantage of the present invention is:
1. can meet the requirement at the road of heavy traffic or the place replacing anode of other inconvenience excavation operations;
2. simple in structure; Construct quick and convenient, can significantly reduce engineering construction cost and maintenance cost;
3. extended the life-span of gas pipeline, economy and social benefit are remarkable.
Accompanying drawing explanation
Fig. 1 is that the present invention is applied in the replaceable anodic combination unit structural representation in city gas electric protection system.
In figure: 1. well curb well lid device; 2. improve anode bar; 3. optimize and fill out construction materials contract; 4. connection terminal; 5. cable; 6. gas pipeline.
Fig. 2 is improvement anode bar structural representation of the present invention.
In figure: 2.1 end caps, 2.2 steel core terminal studs, 2.3 steel cores, 2.4 anode material rods.
Below in conjunction with drawings and the specific embodiments, the present invention is described further.
Embodiment
As shown in Figure 1; the present invention mainly installs in an operating pit for the replaceable anodic combination unit of combustion gas electric protection system; this operating pit region is embedded with protected gas pipeline 6, and this replaceable anodic combination unit is mainly filled out construction materials contract 3, connection terminal 4 and cable 5 and formed by well curb well lid device 1, improvement anode bar 2, optimization.
Described well curb well lid device 1 can be the well curb well lid form of conventional well in operation, be installed on the road surface of road or the ground surface in place, this well curb well lid can adopt cast iron or resin material, meets and is arranged under different grades road or other site conditions, meets vehicle or other load requirements.
The structure of the improvement anode bar 2 of the present invention's design can be simultaneously referring to Fig. 2, and its shape is different from existing national standard, and this bottom of improving anode bar, for ease of changing, can be made as the tip shapes such as wedge shape, quadrangular pyramid shape, meets the convenient needs of filling out construction materials contract that insert; Improve the inner steel core 2.3 tops settings of anode bar and be convenient to impact the end cap 2.1 hammering; The main body anode material rod 2.4 that improves anode bar can adopt active metal and the alloy manufactures thereof such as magnesium, aluminium, zinc; Improve anode bar steel core end cap and divide into cable splicing ear (that is steel core terminal stud 2.2).
It is by tradition, to fill out construction materials contract to improve and optimizate that construction materials contract 3 is filled out in optimization of the present invention, and tradition is filled out construction materials contract and generally gypsum, wilkinite or diatomite and sodium sulfate, consisted of, and buries underground for a long time in soil, can harden to cause because of water suction and cannot change anode bar.Optimization of the present invention is filled out construction materials contract and is characterised in that: formula comprises 1. sand+sodium sulfate, 2. sand+wilkinite+sodium sulfate, the 3. different ratios of sand+wilkinite+magnesium sulfate and above formula combination.These kind of optimization is filled out construction materials contract and can be reduced the resistivity of filling out construction materials contract self, is conducive to the uniform corrosion of anode material, stops passivation layer to form, and protective current is more evenly distributed and is difficult for hardening.Preferred concrete scheme is to fill out a kind of that construction materials contract can be in following formulation material:
1. sand and sodium sulfate, wherein both weight percents are: sand is 50～95%; Sodium sulfate is 5%～50%;
2. husky, wilkinite and sodium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～30%; Sodium sulfate is 5%～30%;
3. sand+wilkinite+magnesium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～35%; Magnesium sulfate is 5%～25%.
In order to be convenient for changing anode assembly; the present invention has set up connection terminal 4; and realize and improving being connected of anode bars 2 and protected gas pipeline 6 with two sections of cables 5: described connection terminal 4 can be arranged on the wall of operating pit limit; and (distance apart from well curb well lid should be as far as possible within 1 meter to be bordering on the well curb well lid device place at top; to be easy to open after well lid, staff can touch).One end of one section of described cable is connected with the cable splicing ear on anode bar steel core, and the other end is connected with the connection terminal 4 on the wall of operating pit limit; One end of another section of cable is connected with the connection terminal 4 on the wall of operating pit limit, and the other end is directly connected with protected gas pipeline 6, shown in Figure 1.
Employing is design as above, when needs are changed improvement anode bar 2, only need open well lid, and disconnection connection terminal 4 places are connected with anode bar cable, can utilize Luoyang Spade or similar means to take out inefficacy anode bar, more directly change new improvement anode bar 2.
The laying method of replaceable anodic combination unit of the present invention comprises installing first to be changed anode assembly program and changes the installation sequence that improves anode bar.
The step that the invention process method is installed replacing anode assembly program is first as follows:
Step 1: when piping installation, adopt thermit welding mode by cable welding on protected gas pipeline, by cable leading to planning to build near well curb well lid;
Step 2: after pipeline backfill, optimization is filled out to construction materials contract and be poured in working pit;
Step 3: well curb well lid is installed, pipeline outgoing cable is connected with connection terminal; .
Step 4: improvement anode bar is inserted to optimize and fill out in construction materials contract;
Step 5: will improve anode bar and be connected with connection terminal from tape cable;
Step 6: spread water and fill out construction materials contract and carry out necessary test to optimizing.
It is as follows that the present invention changes installation improvement anode bar program technic step:
Step 7: open well lid, disconnect connection terminal place anode bar cable and connect.
Step 8: utilize Luoyang Spade or similar means to take out inefficacy anode bar.
Step 9: repeating step four～step 6, changes to new improvement anode bar.
The various embodiments described above can some variations in addition under not departing from the scope of the present invention, thus above explanation comprise should be considered as exemplary, but not in order to limit the protection domain of the present patent application patent.
Claims (8)
1. for a replaceable anodic combination unit for combustion gas electric protection system, this device installation is in an operating pit, and this operating pit region is embedded with protected gas pipeline; And in described operating pit, be filled with the construction materials contract of filling out of this device, fill out in construction materials contract and be inserted with anode bar, this anode bar is connected with protected gas pipeline by cable; It is characterized in that:
At the top of described operating pit, be provided with well curb well lid device, this well curb well lid device is installed on the road surface of road or the ground surface in place;
Described anode bar adopts and improves anode bar, and it vertically inserts and fill out in construction materials contract, and the bottom head of this improvement anode bar is tip shape, on the steel core of improvement anode bar epimere, establishes cable splicing ear;
On the wall of operating pit limit and the well curb well lid device place that is bordering on top be provided with connection terminal;
Described improvement anode bar is realized and being connected of protected gas pipeline by two sections of cables: one end of one section of cable is connected with the cable splicing ear on anode bar steel core, and the other end is connected with the connection terminal on the wall of operating pit limit; One end of another section of cable is connected with the connection terminal on the wall of operating pit limit, and the other end is directly connected with protected gas pipeline.
2. replaceable anodic combination unit as claimed in claim 1, is characterized in that: the upper top of described improvement anode bar is with end cap.
3. replaceable anodic combination unit as claimed in claim 1, is characterized in that: the described construction materials contract of filling out is a kind of in following formulation material:
1. sand and sodium sulfate, wherein both weight percents are: sand is 50～95%; Sodium sulfate is 5%～50%;
2. husky, wilkinite and sodium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～30%; Sodium sulfate is 5%～30%;
3. sand+wilkinite+magnesium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～35%; Magnesium sulfate is 5%～25%.
4. replaceable anodic combination unit as claimed in claim 1, is characterized in that: the bottom head of described improvement anode bar tip shape is wedge shape or quadrangular pyramid shape.
5. laying and a using method of replaceable anodic combination unit as claimed in claim 1, is characterized in that method steps is as follows:
1) when piping installation, adopt thermit welding mode by one section of cable welding on protected gas pipeline, by cable leading to planning to build near well curb well lid device;
2), after protected gas pipeline backfill, optimization is filled out to construction materials contract and be poured in working pit;
3) walling crib is installed, and installs connection terminal on the working pit limit wall of nearly this walling crib, the cable that protected gas pipeline is drawn is connected with the connection terminal at this place;
4) anode bar being inserted to optimization fills out in construction materials contract;
5) anode bar is connected with connection terminal from tape cable;
6) spread water and fill out construction materials contract to optimizing, after meeting the demands, buckle well lid, come into operation;
7) time limit of service then, is opened well lid, and disconnection connection terminal place is connected with anode bar cable;
8) utilize instrument to take out inefficacy anode bar;
9) repeating step 4)～6), new anode bar is come into operation.
6. the laying method of replaceable anodic combination unit as claimed in claim 5, is characterized in that described anode bar adopts improvement anode bar, and the anode bar of this improvement at least has one of following feature:
1) there is the bottom head of tip shape;
2) upper top is with end cap.
7. the laying method of replaceable anodic combination unit as claimed in claim 6, is characterized in that: the bottom head of described anode bar tip shape is wedge shape or quadrangular pyramid shape.
8. the laying method of replaceable anodic combination unit as claimed in claim 5, is characterized in that the adopted construction materials contract of filling out is a kind of in following formulation material:
1. sand and sodium sulfate, wherein both weight percents are: sand is 50～95%; Sodium sulfate is 5%～50%;
2. husky, wilkinite and sodium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～30%; Sodium sulfate is 5%～30%;
3. sand+wilkinite+magnesium sulfate, wherein three's weight percent is: sand is 50～90%; Wilkinite is 5%～35%; Magnesium sulfate is 5%～25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286438.0A CN104109864A (en) | 2014-06-24 | 2014-06-24 | Replaceable anode composite set used in combustion gas electric protection system and laying method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410286438.0A CN104109864A (en) | 2014-06-24 | 2014-06-24 | Replaceable anode composite set used in combustion gas electric protection system and laying method |
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| CN104109864A true CN104109864A (en) | 2014-10-22 |
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| CN201410286438.0A Pending CN104109864A (en) | 2014-06-24 | 2014-06-24 | Replaceable anode composite set used in combustion gas electric protection system and laying method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161902A (en) * | 2018-09-27 | 2019-01-08 | 江苏清源管道技术有限公司 | A kind of novel natural gas pipeline corrosion protection device and method |
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| CN201084842Y (en) * | 2007-08-02 | 2008-07-09 | 潘龙雨 | An alloy grounding device |
| US20100147703A1 (en) * | 2004-04-29 | 2010-06-17 | Gareth Kevin Glass | Sacrificial anode and treatment of concrete |
| CN201809441U (en) * | 2010-09-17 | 2011-04-27 | 张永新 | Metering station cathodic protection |
| CN203904462U (en) * | 2014-06-24 | 2014-10-29 | 北京市煤气热力工程设计院有限公司 | Replaceable anode assembling device applied to town gas-electricity protection system |
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2014
- 2014-06-24 CN CN201410286438.0A patent/CN104109864A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100147703A1 (en) * | 2004-04-29 | 2010-06-17 | Gareth Kevin Glass | Sacrificial anode and treatment of concrete |
| CN201084842Y (en) * | 2007-08-02 | 2008-07-09 | 潘龙雨 | An alloy grounding device |
| CN201809441U (en) * | 2010-09-17 | 2011-04-27 | 张永新 | Metering station cathodic protection |
| CN203904462U (en) * | 2014-06-24 | 2014-10-29 | 北京市煤气热力工程设计院有限公司 | Replaceable anode assembling device applied to town gas-electricity protection system |
Non-Patent Citations (1)
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| 侯彪: "城镇燃气埋地钢质管道牺牲阳极阴极保护的设计", 《全面腐蚀控制》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161902A (en) * | 2018-09-27 | 2019-01-08 | 江苏清源管道技术有限公司 | A kind of novel natural gas pipeline corrosion protection device and method |
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Application publication date: 20141022 |