JPS623576U - - Google Patents
Info
- Publication number
- JPS623576U JPS623576U JP9431485U JP9431485U JPS623576U JP S623576 U JPS623576 U JP S623576U JP 9431485 U JP9431485 U JP 9431485U JP 9431485 U JP9431485 U JP 9431485U JP S623576 U JPS623576 U JP S623576U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- current
- constant
- base
- power source
- 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.)
- Granted
Links
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 238000004210 cathodic protection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
Description
第１図は、本考案の装置の回路を示す結線図、
第２図は、無防食時に発生する電食を示す説明図
、第３図は、外部電源式の防食装置の説明図、第
４図は、本考案の一実施例を示す回路図、第５図
は本考案の多段増幅を示す場合の回路図である。
ａ，ｂ…定電位制御装置、Ａ，Ａ１，Ａ２，Ａ
ａ，Ａｂ…通電々極、Ｂ１，Ｂ２，Ｂ１ａ，Ｂ１
ｂ，Ｂ２ａ，Ｂ２ｂ…ベース端子、Ｃ１，Ｃ２，
Ｃ１ａ，Ｃ１ｂ，Ｃ２ａ，Ｃ２ｂ…コレクタ端子
、ＤＣ，ＤＣ１，ＤＣ２…定電圧直流電源、Ｍｇ
，Ｍｇ１，Ｍｇ２，Ｍｇａ，Ｍｇｂ…通電陽極、
Ｐ…防食対象管路、Ｐ１…埋設鉄管、Ｒ…電気軌
条、ＴＲ１，ＴＲ１ａ，ＴＲ１ｂ…ＮＰＮ型（第
１）トランジスター、ＴＲ２，ＴＲ２ａ，ＴＲ２
ｂ…ＰＮＰ型（第２）トランジスター、〓〓 〓
…流出、流入電流の方向。
FIG. 1 is a wiring diagram showing the circuit of the device of the present invention;
Fig. 2 is an explanatory diagram showing electrolytic corrosion that occurs when no corrosion protection is used; Fig. 3 is an explanatory diagram of an externally powered corrosion protection device; Fig. 4 is a circuit diagram showing an embodiment of the present invention; The figure is a circuit diagram showing the multistage amplification of the present invention. a, b... Constant potential control device, A, A 1 , A 2 , A
a, Ab... Current-carrying electrode, B 1 , B 2 , B 1a , B 1
b , B2a , B2b ...Base terminal, C1 , C2 ,
C 1a , C 1b , C 2a , C 2b ... Collector terminal, DC, DC 1 , DC 2 ... Constant voltage DC power supply, Mg
, Mg 1 , Mg 2 , Mga, Mgb... energizing anode,
P...Pipeline to be protected against corrosion, P1 ...Buried iron pipe, R...Electric rail, TR1 , TR1a , TR1b ...NPN type (first) transistor, TR2 , TR2a , TR2
b ...PNP type (second) transistor, 〓〓 〓
...direction of outflow and inflow currents.
Claims (1)
流電源を接続した電気防食用外部電源装置におい
て、 該定電圧直流電源と、前記通電々極との間に、
第１トランジスターを挿入接続し、更に前記防食
対象管路と、その近傍に新たに設けた流電陽極と
の間に第２トランジスターのエミツターとベース
を接続し、該第２トランジスターのコレクターは
、前記第１トランジスターのベースに接続した回
路よりなる定電位制御装置。[Scope of Claim for Utility Model Registration] In an external power supply device for cathodic protection in which a constant voltage DC power source is connected between a pipeline to be protected against corrosion and a current-carrying electrode, the constant-voltage DC power source and the current-carrying electrode are Between,
A first transistor is inserted and connected, and an emitter and a base of a second transistor are connected between the corrosion-protected pipe line and a current anode newly provided in the vicinity thereof, and the collector of the second transistor is connected to the A constant potential control device consisting of a circuit connected to the base of the first transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9431485U JPH0318503Y2 (en) | 1985-06-21 | 1985-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9431485U JPH0318503Y2 (en) | 1985-06-21 | 1985-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS623576U true JPS623576U (en) | 1987-01-10 |
| JPH0318503Y2 JPH0318503Y2 (en) | 1991-04-18 |
Family
ID=30652760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9431485U Expired JPH0318503Y2 (en) | 1985-06-21 | 1985-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318503Y2 (en) |
-
1985
- 1985-06-21 JP JP9431485U patent/JPH0318503Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0318503Y2 (en) | 1991-04-18 |
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