The electronic metal Rustproofing apparatus
The utility model belongs to electrochemical cathodic protection metal rust preventing technical field, relates to equipment such as the metal construction that is used for automobile, boats and ships, precision instrument, petrochemical complex, bridge construction and military installations, the Rustproofing apparatus under seawater, water and humid atmosphere environment.
When metal exposes in seawater, water and humid atmosphere environment, metal contacts with above-mentioned ionogen, and unbound electron is seized by ionogen in the metal, and burning is got rusty.For preventing that metal from getting rusty, common way is that method such as the outside surface coating, plating, enamel at metal covers layer protective layer and completely cuts off ionogen such as seawater, water and humid atmosphere and seize unbound electron in the metal, thereby prevents to get rusty.In case protective layer is impaired corrosion will take place, in addition, pollute the environment in the process of implementing the coating protective membrane.
The purpose of this utility model provides a kind of electronic metal Rustproofing apparatus that can overcome above-mentioned defective.
What the utility model adopted is cathode protection technology; it comprises current controller, anode head two portions: feature is that the output head anode of current controller is exported pulsed current to the anode head input anode, and its negative pole of output end directly is connected with protected metal device.The input termination direct current of current controller is input to the application specific integrated circuit module and exports pulse through integrated regulator, delivers to output head anode through bipolar transistor and current-limiting resistance; The anode end face of anode head is established insulation layer, and the anode head input anode is joined by printed circuit board (PCB) and anode and variable resistor input terminus, places in the seal protection layer, and variable resistor output terminal lead-in wire is connected with protected metal device.
The utility model can be protected the inaccessible place of way with metal coat, and such as zones such as hardware internal surface and recessed, seam, groove, holes, guard time is long, pollution-free, save the energy, and this installation cost is low, install simply.
Fig. 1, the utility model structural representation
Fig. 2, the utility model anode head structural representation
Fig. 3, the utility model current controller schematic circuit
Embodiment is described in detail in detail in conjunction with the accompanying drawings: the utility model comprises current controller A, anode head B two portions; the output head anode of current controller A and anode head B input anode 5 are joined, and its negative pole of output end directly is connected (as shown in Figure 1) with protected metal device C.The anode 3 of anode head B is an aluminum anode, its end face has insulating film 2, the input anode 5 of anode head B is connected with aluminum anode 3 by printed circuit board (PCB) 7, the input anode 5 of anode head is joined with the input terminus of variable resistor 6, place in the seal protection layer 4, make it to be fixed in the anode head B, the output termination lead-in wire 1 of variable resistor 6 is connected (1 directly is connected with protected metal device shown in Fig. 2) with protected metal device C; The circuit of current controller A comprises electrical condenser C
2, integrated regulator M, application specific integrated circuit module U, bipolar transistor switches G, resistance R, photodiode D.The input termination 12V volts DS of current controller A, through integrated regulator M regulating voltage, be input to application specific integrated circuit module U, produce pulse signal, deliver to output head anode OUT through bipolar transistor switches G and current limiting resister R, and link to each other with the input anode 5 of anode head B; Photodiode D is used to indicate the working condition of current controller A; Electrical condenser C
2Be input filter capacitor; The input anode 5 of output head anode OUT and anode head B is joined, and negative pole of output end links to each other (as shown in Figure 3) with protected metal C.
After the equipment of metal construction is loaded onto the utility model (its method of attachment as shown in Figure 1); under seawater, water and humid atmosphere environment; current controller A exports pulsed current; when the positive pulse electric current; on the sunny side cartridge B and protected metal C carry and add cathodic protection current, and metals such as copper iron are protected and can be by corrosion.