A kind of underwater wet welding power supply remote control
Technical field
The utility model relates to a kind of welding auxiliary equipment, is specifically related to a kind of underwater wet welding power supply remote control.
Background technology
Underwater wet welding is the welding manner being carried out welding operation by diver in water, and relative to dry method welding, it is simple that underwater wet welding has equipment, the advantages such as flexible and convenient operation.Under water in work progress, for ensureing the safety of diver, preventing the generation of electric shock accidents, needing to cut off the source of welding current in time at the end of welding, after only obtaining diver's permission, just connect welding and return, carry out welding operation.
The welding machine being used for Underwater Welding due to great majority does not possess distant control function, and the break-make of welding circuit is realized by large-scale gate knife-like switch.Knife switch is connected in the middle of welding circuit, and when needs weld, onshore operations personnel are according to the requirement of diver, and closed knife switch, welding circuit conducting, equally, also can cut off welding circuit according to the requirement of diver.This loop break-make control mode has the simple and reliable advantage of equipment, and application is comparatively extensive, but also finds in actual application, because the conducting of big current is with when cutting off, phenomenon of arc discharge is comparatively obvious, and under wet environment, operation has certain danger, and its labour intensity of frequent break-make is also larger.In addition, due to long-term in wet environment arcing, the loss aggravation of knife switch, internal driving increases obviously, this again welding quality bring serious impact.
In addition, because underwater wet welding job site is protection welding machine sometimes, keep away from moisture; welding machine needs to be positioned over cabin, and away from spar deck, site operation personnel are difficult to read work state nearby; once run into special status in underwater construction process, scene is difficult to process in time.
Utility model content
For the deficiency that prior art exists, technical problem to be solved in the utility model is, a kind of handling safety underwater wet welding power supply remote control is easily provided, avoid the danger that phenomenon of arc discharge produces under wet environment, decrease the labour intensity of personnel, in welding procedure process under water, shore man can control the passage of welding circuit in the realization of safe and convenient, and welding machine duty can be read nearby, the situation in Underwater Welding process is responded in time.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of underwater wet welding power supply remote control, and comprise control cabinet and remote-control box, described control cabinet connects remote-control box by control cables, described control cabinet comprises Switching Power Supply, contactor, control relay, current divider and quick plug, described quick plug comprises input anode quick plug, input cathode quick plug, output head anode quick plug, negative pole of output end quick plug, described remote-control box comprises toggle switch, indicator lamp, indicator type current meter and needle dc voltmeter, described input anode quick plug is connected with the positive pole of the source of welding current, described input cathode quick plug is connected with the negative pole of the source of welding current, described output head anode quick plug, negative pole of output end quick plug is connected with workpiece with welding gun respectively by electrode holder line, one end of described contactor is connected with input anode quick plug, the other end is connected with output head anode quick plug, described contactor connecting valve power supply, described Switching Power Supply and control relay, toggle switch, indicator lamp is connected, described current divider is connected with negative pole of output end quick plug with input cathode quick plug, and be connected with indicator type current meter, described input anode quick plug is connected with needle dc voltmeter with input cathode quick plug.
The advantage of the utility model underwater wet welding power supply remote control is:
1, underwater wet welding power supply remote control, the mode of welding circuit is cut off relative to traditional plug-in strip, the underwater wet welding power supply remote control that the utility model relates to, simple to operate, safe and reliable, welding machine duty can be read by real-time remote, while ensureing welder's safety, reduce impedance loop, improve welding quality.
2, underwater wet welding power supply remote control, remote-control box control voltage is direct current 24V, belongs to safe voltage; Break-make by means of only toggle switch can complete original operation, and phenomenon of arc discharge betides contacts of contactor place, and because contacts of contactor is away from operating personnel, in the middle of the environment being in relatively dry, safety coefficient is high, and service life is longer.Moreover, because contacts of contactor loss is little, impedance loop is lower, therefore, welding quality provide facilitation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is remote-control box structural representation in the utility model Fig. 1;
Fig. 3 is control cabinet structural representation in the utility model Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the utility model is described in further details:
As shown in Figure 1, 2, 3, a kind of underwater wet welding power supply remote control, is characterized in that: comprise control cabinet 2 and remote-control box 1, and described control cabinet 2 connects remote-control box 1 by control cables 3, and described control cables 3 adopts seven core control cables; Described control cabinet 2 comprises Switching Power Supply 21, contactor 26, control relay 25, current divider 24 and quick plug, and described Switching Power Supply 21 provides 24V dc source for package unit; Described quick plug comprises input anode quick plug 22, input cathode quick plug 23, output head anode quick plug 27, negative pole of output end quick plug 28; Described remote-control box 1 comprises toggle switch 14, indicator lamp 13, indicator type current meter 12 and needle dc voltmeter 11; Described input anode quick plug 22 is connected with the positive pole of the source of welding current 4, described input cathode quick plug 23 is connected with the negative pole of the source of welding current 4, described output head anode quick plug 27, negative pole of output end quick plug 28 are connected with workpiece 7 with welding gun 5 respectively by electrode holder line 6, one end of described contactor 26 is connected with input anode quick plug 22, the other end is connected with output head anode quick plug 27, by the break-make of contactor 26, the break-make realized sealing in welding circuit controls; Described contactor 26 connecting valve power supply 21, described Switching Power Supply 21 is connected with control relay 25, toggle switch 14, indicator lamp 13, the control coil of contactor 26 is powered by Switching Power Supply 21, by the toggle switch 14 in control relay 25 and remote-control box 1, and the control of the tentaculum 26 that achieves a butt joint; Another effect of control relay 25 is together with indicator lamp 13 in remote-control box 1, the instruction of tentaculum 26 on off operating mode that achieves a butt joint; Described current divider 24 is connected with negative pole of output end quick plug 28 with input cathode quick plug 23, and is connected with indicator type current meter 12, for showing welding current; Described input anode quick plug 22 is connected with needle dc voltmeter 11 with input cathode quick plug 23, for showing welding machine end real-time voltage.
The using method of underwater wet welding power supply remote control, in use, when equipment connection completes, start the source of welding current 4, needle dc voltmeter 11 shows welding machine floating voltage value, operator's wait instruction; Diver is ready, and after sending instruction, onshore operations personnel are by closed toggle switch 14, and control relay 25 adhesive is contactor 26 coil power supply, thus the whole welding circuit of conducting, ready for welding; Equally, when needs stop welding, disconnecting toggle switch 14 easily can cut off welding circuit, terminates welding process; Show contactor 26 duty by the indicator lamp 13 on remote-control box 1, due to working site inclement condition, be easy to occur, because joint looseness or control cables damage the fault caused, by the feedback effect of status indicator lamp, the reliability of device can be improved; Needle dc voltmeter 11 and indicator type current meter 12, operator can observe real-time welding parameter, judges, and take measures to fix a breakdown to the fault occurred; When weldingvoltage is always zero, then whether have output, whether the source of welding current 4 loosens with the connection of control cabinet 2 if needing to get rid of welding machine; When weldingvoltage is always floating voltage, contactor 26 is thrown away and can not be welded after connecting, then need to get rid of the whether conducting of contactor 26 contact, and whether the welding cable that control cabinet 2 exports loosens breaks; When the registration of indicator type current meter 12 and preset current difference are comparatively large, need the optimum configurations checking welding machine.
Certainly, above-mentioned explanation is not to restriction of the present utility model, and the utility model is also not limited to above-mentioned citing; those skilled in the art; in essential scope of the present utility model, the change made, change, interpolation or replacement, all should belong to protection domain of the present utility model.