CN105162100A - Novel alternating-current electric drainage - Google Patents
Novel alternating-current electric drainage Download PDFInfo
- Publication number
- CN105162100A CN105162100A CN201510478399.9A CN201510478399A CN105162100A CN 105162100 A CN105162100 A CN 105162100A CN 201510478399 A CN201510478399 A CN 201510478399A CN 105162100 A CN105162100 A CN 105162100A
- Authority
- CN
- China
- Prior art keywords
- anode
- cathode
- direction diode
- electric drainager
- diode
- 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.)
- Pending
Links
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a novel alternating-current electric drainage. The alternating-current electric drainage is composed of a capacitor, a diode in an anode direction, a diode set in a cathode direction, a surge protector, an anode binding post, a cathode binding post, a plurality of wires and a metal packaging housing, wherein six cathode diode are serially connected, then are connected with the anode diode in parallel and then are connected with the capacitor and the surge protector to form a main control circuit of the alternating-current electric drainage. Compared with conventional alternating-current electric drainages such as a clamped electric drainage, the alternating-current electric drainage is smaller in alternating-current impedance (not more than 10 m[Omega]) and lower in direct-current leakage flow (not more than 1 mA), so that the service performance of the alternating-current electric drainage is better.
Description
Technical field
The invention belongs to the AC influence field of buried metal works, particularly the interchange of buried metal pipeline is alleviated, and is mainly used in the novel interchange electric drainager of one improving the military service performance exchanging electric drainager.
Background technology
Along with the proposition of some man of countries Major Strategics such as " band one tunnel ", " Yangtze River Zone " and " Jing-jin-ji region cooperative development ", China's oil natural gas line, HVAC power transmission line and attached wires of AC electrified railway (particularly high-speed railway) have stepped into the large-scaled construction period, buried pipeline and the contiguous situation of laying of HVAC power transmission line (or attached wires of AC electrified railway) get more and more, thus cause the AC influence of pipeline more and more serious.AC influence not only can threaten to the personal safety of channel worker, also can damage the appurtenances of pipeline, and in addition, AC influence also can cause the AC corrosion of pipeline, to such an extent as to the generation of the accident such as pipe perforation leakage and blast.Therefore, cost-effective interchange mitigation strategy is most important for the safe operation of the oil and gas pipeline be disturbed, HVAC power transmission line and electric railway.
Interchange remission method conventional both at home and abroad is at present the drainage technology adopting the multi-form additional interchange electric drainager of low resistance earthing groundbed.The form of groundbed is alleviated most important for the interchange of pipeline, can be optimized design according to the actual condition of pipeline.The performance simultaneously exchanging electric drainager is not only extremely important to the interchange remission effect of groundbed, also also extremely important to the normal operation of pipeline cathode protection system.At present, the impact that conventional both at home and abroad interchange electric drainager exchanges remission effect and pipeline cathode protection current potential to groundbed is different.General, domestic interchange electric drainager often reduces the interchange remission effect of groundbed, also can cause larger impact to pipeline cathode protection current potential simultaneously.By contrast, the external military service better performances exchanging electric drainager, but its price is very expensive, also fails at home to popularize.Therefore, the more excellent and comparatively economic interchange electric drainager of a kind of performance of being on active service is badly in need of to meet the growing market demand.
Summary of the invention
In order to solve the problem, the object of this invention is to provide a kind of function admirable and interchange electric drainager of cost economic of being on active service to meet the growing market demand.
Technical scheme of the present invention is a kind of novel interchange electric drainager structure, and this interchange electric drainager comprises: a capacitor, an anode direction diode, a cathode direction diode group, a surge protector, anode terminal, cathode terminal, a some wires and metal shell composition;
Wherein, cathode direction diode group comprises six diodes, both positive and negative polarity is connected formation cathode direction diode group by six diode wires successively, afterwards with anode direction diodes in parallel, wherein the positive pole of anode direction diode is connected with the negative pole of cathode direction diode group, and the negative pole of anode direction diode is connected with the positive pole of cathode direction diode group;
Surge Protector is in parallel with anode direction diode, cathode direction diode group and capacitor.Wherein the positive pole of positive pole and the anode direction diode of Surge Protector, the negative pole of cathode direction diode group and the positive pole of capacitor are connected, and are all electrically connected with anode terminal afterwards; The negative pole of Surge Protector is connected with the negative pole of anode direction diode, the positive pole of cathode direction diode group and the negative pole of capacitor, is electrically connected afterwards with cathode terminal;
After all electronic devices and components assemblings, be arranged in a metal-back.The alternating current that groundbed is discharged under normal circumstances flows through from described capacitor, and the big current (alternating current) under failure condition, as thunder-strike current, flows through from described Surge Protector.Under normal circumstances, when cathode terminal (as pipeline) and anode tap (drainage groundbed) DC potential difference are within-3V ~+1V scope, are no more than 1mA by the direct current of this interchange electric drainager, thus can not impact the cathodic protection potential of pipeline.
The novel interchange electric drainager of one that the present invention proposes.This interchange electric drainager has less AC impedance (being no more than 10m Ω) and lower direct current leakage current amount (being no more than 1mA) than the interchange electric drainager on domestic market.Just because of this, this novel interchange electric drainager has more excellent military service performance than the interchange electric drainager on domestic market, and namely exchanging remission effect to groundbed affects very little and can not impact the cathodic protection potential of pipeline.In addition, the interchange electric drainager that the cost of novel interchange electric drainager is similar far below foreign duty performance, has boundless application prospect.
Accompanying drawing explanation
Fig. 1 is the governor circuit figure of a kind of novel interchange electric drainager structure of the present invention.
Fig. 2 is the schematic top plan view of a kind of novel interchange electric drainager structure of the present invention.
Fig. 3 is that schematic diagram is looked on a left side for a kind of novel interchange electric drainager structure of the present invention.
［ main mark symbol description ］
1-capacitor, 2-anode diode, 3-negative electrode diode, 4-Surge Protector, 5-anode terminal, 6-cathode terminal, 7-metal shell.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is explained in further detail.Should be appreciated that specific embodiment described herein only for explaining the present invention, being not intended to limit the present invention.
On the contrary, the present invention is contained any by the substituting of making on marrow of the present invention and scope of defining of claim, amendment, equivalent method and scheme.Further, in order to make the public have a better understanding to the present invention, in hereafter details of the present invention being described, detailedly describe some specific detail sections.Do not have the description of these detail sections can understand the present invention completely for a person skilled in the art yet.
As shown in Figure 1, interchange electric drainager internal circuit of the present invention comprises a capacitor, an anode direction diode, a cathode direction diode group, a Surge Protector, anode terminal, a cathode terminal and some wires.
Wherein cathode direction diode group comprises the diode of six series connection.Capacitor and be parallel relationship between anode direction diode, cathode direction diode group and Surge Protector; and the positive pole of the positive pole of capacitor and anode direction diode, the negative pole of cathode direction diode group and the positive pole of Surge Protector are connected; all be electrically connected with anode terminal afterwards; the negative pole of capacitor is connected with the negative pole of anode direction diode, the positive pole of cathode direction diode and the negative pole of Surge Protector, is all electrically connected with cathode terminal afterwards.
After all electronic devices and components compositions, be all installed in a metal shell, respectively anode terminal and cathode terminal stretched out outside metal shell, so that the installation at scene.
Near the interchange drainage groundbed preset, explosion-proof tank is installed, then invented novel interchange electric drainager is installed in explosion-proof tank, and with cable, pipeline is electrically connected to the cathode terminal of novel interchange electric drainager, with an other cable, the anode terminal of drainage groundbed with novel electric drainager is electrically connected, exchanges electric drainager normal service.
Example:
(1) buy a capacitor respectively according to parameter of the present invention, seven diodes, Surge Protector, two binding posts and 1 meter of sectional area are 2mm
2copper conductor;
(2) according to the circuit diagram shown in Fig. 1, adopt the mode copper conductor of mechanical connection to be electrically connected by each electronic devices and components and connect, note the both positive and negative polarity connection of each components and parts;
(3) according to the mould of the schematic diagram machine work shown in 2 and Fig. 3, then the method for casting is adopted to make a metal shell, metal shell comprises upper and lower two parts, and utilizes mach method respectively to process the screwed hole of a φ 6.5 at four angles of metal shell;
(4) mounted governor circuit is installed to the inside of metal shell, and anode terminal and cathode terminal are each passed through reserved metal aperture expose, so that the connection of external circuit.Then use the bolt of 4 M8 that packed by metal casing is good.
Near the drainage groundbed needing installation interchange drainage, an explosion-proof tank is installed; then install making complete novel interchange electric drainager wherein; and be electrically connected with pipeline with the cathode terminal of cable by electric drainager; anode terminal is electrically connected with drainage groundbed; novel electric drainager normal service afterwards, on the drainage effect exchanging drainage groundbed without impact and can not on the cathodic protection potential affecting pipeline.
Although describe this present invention with reference to preferred embodiment, but the present invention is not limited to this, under the prerequisite not departing from the present invention's spirit and essence, those of ordinary skill in the art can carry out distortion and the change of various equivalence to the present invention, and these distortion and change are all in covering scope of the present invention.
Claims (7)
1. a novel interchange electric drainager; it is characterized in that, described interchange electric drainager comprises: a capacitor (1), an anode direction diode (2), a cathode direction diode group (3), a Surge Protector (4), an anode terminal (5), cathode terminal (6), some wires and a metal shell (7).
2. novel interchange electric drainager according to claim 1, it is characterized in that, described cathode direction diode group (3) comprises multiple diode, with wire (7), both positive and negative polarity be connected successively between multiple diode and form a series circuit, form cathode direction diode group (3), and it is in parallel with described anode direction diode (2) by wire, thus form a diode group, wherein the positive pole of anode direction diode (2) is connected with the negative pole of cathode direction diode group (3), the negative pole of anode direction diode (2) is connected with the positive pole of cathode direction diode group (3).
3. novel interchange electric drainager according to claim 2, it is characterized in that, with conductor in parallel between described capacitor (1) and diode group and Surge Protector (3), wherein capacitor (1) positive pole is connected with the positive pole of the positive pole of anode direction diode (2), the negative pole of cathode direction diode group (3) and Surge Protector (4), form an anode tie point, described anode tie point is connected with described anode terminal (5); The negative pole of capacitor (1) is connected with the positive pole of the negative pole of anode direction diode (2), cathode direction diode group (3) and the negative pole of Surge Protector (4), forms a negative pole tie point, and described negative pole tie point is connected with cathode connection (6) post.
4. novel interchange electric drainager according to claim 3, is characterized in that, described capacitor (1), anode direction diode (2), cathode direction diode group (3), Surge Protector (4) are installed in metal shell (7).
5. the novel interchange electric drainager of one according to claim 1, is characterized in that: the straight-wavy valve threshold voltage of described novel interchange electric drainager is-3V ~+1V.
6. the novel interchange electric drainager of one according to claim 5, is characterized in that: the threshold voltage of described novel interchange electric drainager can regulate according to concrete operating mode.
7. the novel interchange electric drainager of one according to claim 1, is characterized in that: the AC impedance of described novel interchange electric drainager is no more than 10m Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478399.9A CN105162100A (en) | 2015-08-06 | 2015-08-06 | Novel alternating-current electric drainage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478399.9A CN105162100A (en) | 2015-08-06 | 2015-08-06 | Novel alternating-current electric drainage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105162100A true CN105162100A (en) | 2015-12-16 |
Family
ID=54802897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510478399.9A Pending CN105162100A (en) | 2015-08-06 | 2015-08-06 | Novel alternating-current electric drainage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105162100A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066626A (en) * | 2018-08-28 | 2018-12-21 | 成都中航信虹科技股份有限公司 | The drainage method and stream discharging system of pipeline |
| CN116065156A (en) * | 2022-12-29 | 2023-05-05 | 北京安科管道工程科技有限公司 | Low-threshold potential polarity drainer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506849Y (en) * | 2001-05-21 | 2002-08-21 | 天津赛德电气设备有限公司 | Clamping flow discharging device for metal pipeline |
| CN201674222U (en) * | 2010-05-18 | 2010-12-15 | 上海海隆石油管材研究所 | Drainage device for protecting cathode of buried metal pipeline |
| CN202004446U (en) * | 2011-01-26 | 2011-10-05 | 福建畅联电子有限公司 | Pipeline decoupling device |
| CN202444250U (en) * | 2012-02-28 | 2012-09-19 | 中国科学院海洋研究所 | Intelligent stray current drainage system |
-
2015
- 2015-08-06 CN CN201510478399.9A patent/CN105162100A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2506849Y (en) * | 2001-05-21 | 2002-08-21 | 天津赛德电气设备有限公司 | Clamping flow discharging device for metal pipeline |
| CN201674222U (en) * | 2010-05-18 | 2010-12-15 | 上海海隆石油管材研究所 | Drainage device for protecting cathode of buried metal pipeline |
| CN202004446U (en) * | 2011-01-26 | 2011-10-05 | 福建畅联电子有限公司 | Pipeline decoupling device |
| CN202444250U (en) * | 2012-02-28 | 2012-09-19 | 中国科学院海洋研究所 | Intelligent stray current drainage system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066626A (en) * | 2018-08-28 | 2018-12-21 | 成都中航信虹科技股份有限公司 | The drainage method and stream discharging system of pipeline |
| CN109066626B (en) * | 2018-08-28 | 2019-04-30 | 成都中航信虹科技股份有限公司 | The drainage method and stream discharging system of pipeline |
| CN116065156A (en) * | 2022-12-29 | 2023-05-05 | 北京安科管道工程科技有限公司 | Low-threshold potential polarity drainer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bucher et al. | Comparison of fault currents in multiterminal HVDC grids with different grounding schemes | |
| CN105322536A (en) | Protection configuration method of typical multi-terminal flexible direct current power distribution system | |
| CN101950956A (en) | Lightning-proof electric control device of photovoltaic power generation system | |
| Magg et al. | Connecting networks with VSC HVDC in Africa: Caprivi Link interconnector | |
| CN201846074U (en) | Lightning-proof control device for photovoltaic power generating system | |
| CN105162100A (en) | Novel alternating-current electric drainage | |
| CN207435552U (en) | The combined system of direct current grounding pole and buried metal pipeline | |
| CN202444250U (en) | Intelligent stray current drainage system | |
| CN201226416Y (en) | Special grounding network for restraining DC magnetic bias phenomena transformer neutral point | |
| CN204464916U (en) | ± 800kV and ± 500kV is with tower mixed pressure transmission line polar conductor arrangement | |
| CN205724749U (en) | The wall bushing that a kind of dirt exclusion capabilities is strong | |
| CN206332633U (en) | A kind of magnet controlled controllable parallel reactors | |
| CN203406686U (en) | Device for connecting shore power and ship power | |
| Hamzehbahmani et al. | Earthing requirements for HVDC systems | |
| CN206310241U (en) | A kind of gas pipeline gas-oil valve grounding-for-lightning device | |
| CN201674222U (en) | Drainage device for protecting cathode of buried metal pipeline | |
| CN104357851B (en) | A kind of method, grounding wire device and earthed system for suppressing galvanic corrosion | |
| CN112531669B (en) | Method for constructing receiving end voltage source converter station of hybrid direct current transmission system and converter station | |
| CN202405774U (en) | Stray current drainage device | |
| CN204928065U (en) | Bury formula protective earthing case | |
| CN204651712U (en) | The interim safety electric power distribution box in a kind of job site and consisting of controller switching equipment | |
| CN104483578B (en) | It is a kind of to assess the method that D.C. magnetic biasing influences on power system grounded screen | |
| CN210041325U (en) | Device for balancing current to ground of power grid | |
| CN208835559U (en) | A kind of transformer device structure of box-type substation | |
| CN203070806U (en) | Device for reducing AC submarine power cable armor loss |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |