CN2176863Y

CN2176863Y - Electrolytic water welding-cutting machine

Info

Publication number: CN2176863Y
Application number: CN 93244672
Authority: CN
Inventors: 蒋辛
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-14
Filing date: 1993-11-14
Publication date: 1994-09-14
Anticipated expiration: 2003-11-14

Abstract

The utility model provides an electrolytic water welding-cutting machine, whose technical proposal is that an electrolytic bank, a heat exchanger, a gas-liquid separation bank and a circulating pump are composed of an electrolysis water circulation circuit, the gas-liquid separation bank, a one-way valve, a scaling powder bank, a drying air storage bank, a fire-back arrestor and a welding torch are composed of two air feeding branch lines. Thereof an electric controlling part adopts a silicon controlled constant current plate U 1 and an electrolytic bank pole plate regenerative circuit comprising contactors k 1 and k 2 and a timed output device k 3. The electrolytic bank of the electrolytic water welding-cutting machine has a constant temperature, and the pole plate keeps a new active constantly, so the electrolytic water welding-cutting machine can continuously work for a long time without maintaining and has a high electrolytic efficiency and a strong working reliability.

Description

Electrolytic water welding-cutting machine

The utility model relates to a kind of bluster welding device, and especially a kind of water electrolysis that utilizes produces the device that hydrogen or oxygen gas carries out welding.

Existing acetylene welding cutting mill has been continued to use for many years, it exists the equipment heaviness, energy resource consumption is big, welding cost height, make acetylene and use pollution is arranged, influence shortcomings such as health, in order to explore better gas welding technology, to overcome above-mentioned deficiency, in recent years, multinomial brine electrolysis oxyhydrogen welding cut machine patented technology is arisen at the historic moment, their design philosophy uniqueness, and has a certain practicality, but still existing many jejune places needs to improve: the first, and the size of the temperature of electrolyte and Faradaic current is positive feedback in the electrolytic cell, and promptly electric current is big more, temperature is high more, continuous operation when causing machine not grow, inefficiency; The second, the cell construction complexity is easy care not, and passivation phenomenon easily takes place pole plate, and the negative electrode that reduction reaction especially takes place easily deposits a large amount of anodic solution things and insoluble carbide, not only influences electrolytic efficiency, and need regularly clean or replace pole plate; The 3rd, the complete machine design is perfect not to the utmost, does not have independent gas tank and drying chamber, the unprocessed water content of gas that produces is big, causes throughput deficiency, flame temperature not high, is difficult to satisfy demand of practical production, shortcomings such as in addition, they exist also that volume is big, complex structure, reliability are low.

The purpose of this utility model is to provide a kind of highly efficient regeneration brine electrolysis welding-cutting machine, deficiency such as work in the time of can not growing to overcome machine, the easy passivation of pole plate, flame temperature are low.

For achieving the above object, the technical scheme that the utility model is taked is: this brine electrolysis welding-cutting machine is by electrolytic cell, heat exchanger, knockout drum, dry gas tank, the scaling powder jar, flash-back arrestor, circulating pump, check valve, Pressure gauge and pressure controller, weldering (cutting) torch and electrical control division are grouped into, electrolytic cell wherein, heat exchanger, knockout drum, circulating pump links to each other with pipeline and constitutes the closed circuit of brine electrolysis, knockout drum is except that the gas-liquid mixed import and liquid outlet of bottom, its top also has two gas outlets, a gas outlet is through check valve, the scaling powder jar, flash-back arrestor links to each other with weldering (cutting) torch, another gas outlet is through check valve, dry gas tank, flash-back arrestor links to each other with weldering (a cutting) torch, constitute the two-way air feed branch road of weldering (cutting) torch, guaranteed weldering (cutting) torch throughput foot, the flame temperature height, dry gas tank in the air feed branch road by three-way pipe respectively with Pressure gauge, pressure controller links to each other, with indication mechanism pressure, present pressure signal and give control circuit; The electric control system of brine electrolysis welding-cutting machine has also adopted controllable silicon constant current plate U except that basic gauge tap ₁With the electrolytic bath electrode plate regenerative circuit, controllable silicon constant current plate U wherein ₁Be used for stablizing and regulating the size of Faradaic current, the control electrolyzer temperature, it is connected on rectifier bridge U ₂Input circuit in, the electrolytic bath electrode plate regenerative circuit mainly is by contactor K ₁, K ₂And time interval follower K ₃Form K ₁, K ₂Parallel connection is controlled by K jointly ₃The state variation of two pairs of contacts, this regenerative circuit is in parallel with other gauge taps in the circuit, and its effect is at regular intervals, makes the yin, yang pole plate transposing polarity of electrolytic cell, the pole plate of beginning passivation is regenerated, remain activity.

Brine electrolysis welding-cutting machine by the such scheme manufacturing; electrolyzer temperature is constant; pole plate remains new activity; both can not shut down continuous operation for a long time; can avoid again safeguarding that electrolytic efficiency height, functional reliability are strong, in addition; also possess compact conformation, reasonable in design, throughput foot, flame temperature advantages of higher, can replace the degree that applicable industriesization was cut, reached in acetylene welding.

Fig. 1 is a brine electrolysis welding-cutting machine structural representation;

Fig. 2 is the electrical schematic diagram of brine electrolysis welding-cutting machine.

The utility model is described in further detail below in conjunction with drawings and Examples:

Among Fig. 1, series connection horizontal electrolytic cell 1 links to each other and constitutes the closed circuit of brine electrolysis with heat exchanger 2, knockout drum 3, circulating pump 4 usefulness pipelines, and the bottom of electrolytic cell 1 is equipped with tapping valve 12 in this loop.Knockout drum 3 is except that the gas-liquid mixed import and liquid outlet of bottom, top also has two gas outlets, a gas outlet links to each other with weldering (cutting) torch 9 through check valve 5, scaling powder jar 6, flash-back arrestor 8, another gas outlet links to each other with same weldering (cutting) torch 9 through check valve 5, dry gas tank 7, flash-back arrestor 8, constitute the two-way air feed branch road of weldering (cutting) torch, to guarantee weldering (cutting) torch 9 throughputs foot, the flame temperature height satisfies demand of practical production.In addition, the knockout drum of installing in the pipeline 3 is equipped with the filling opening of being with safety valve with the top of scaling powder jar 6, the direct-reading liquid level gauge is equipped with at the middle part, one side of dry gas tank 7 links to each other with pressure controller 11 with Pressure gauge 10 respectively with three-way pipe, with the index pot internal pressure, pressure signal is presented to control circuit, flash-back arrestor 8 in order to the generation that prevents tempering, guarantee the safe and reliable of system.

The electric control system of brine electrolysis welding-cutting machine shown in Figure 2, after connecting power supply, power supply indicator H ₁Luminous, F ₁, F ₂Be the circuit fuse, starting switch S closes ₁, the electrolyte in the electrolytic cell begins electrolysis and produces hydrogen or oxygen gas, and at circulation electromagnetic pump M ₂Effect under, in closed circuit, flow; By contactor K ₁, K ₂With time interval follower K ₃In the pole plate highly efficient regeneration branch road of forming, K ₃Have out one to close two pairs of contacts, every interval certain hour, the state variation of two contacts once, K ₁, K ₂On off operating mode also change once thereupon, cause to be added to electrolytic cell E ₁, ₂The positive negativity of power supply and the cathode and anode of pole plate also change thereupon, promptly negative electrode becomes anode, substance dissolves of deposition is got off on it, makes the pole plate automatic regeneration of beginning passivation, so circulation is gone down, the pole plate of electrolytic cell remains new activity; At K ₁, K ₂The pressure control switch S of common port series connection ₀₁, its effect is when system pressure reaches qualification numerical value 0.5MPa, cuts off K automatically ₁, K ₂Power supply, electrolysis is stopped, after pressure descends, connecting automatically again, electrolysis restarts; M ₁Be the fan coolling motor that heat exchanger is used, in its electric loop, sealed in temperature detect switch (TDS) S ₀₂, when temperature in the system is higher than 35 ℃, S ₀₂Automatically connect the fan electromotor power supply and begin cooling, at S ₀₂Two ends also in parallel a Hand driving fan switch S ₂, in order to temperature detect switch (TDS) S ₀₂Use H during damage ₂Be fan indicator, with fan electromotor M ₁In parallel; H ₃Be electrolysis indicator lamp, H ₄For forceful electric power is separated indicator lamp, they are by three strong and weak electrolysis gauge tap S ₂Control, controllable silicon constant current plate U ₁(JXKJ004) be connected on rectifier bridge U ₂Input circuit in, constant current plate U ₁Size of current by switch S ₂Control, its effect are sizes stable and that regulate Faradaic current, and the control electrolyzer temperature is at rectifier bridge U ₂Another input circuit in string current transformer T and ammeter A arranged, in order to the size of indication Faradaic current; Electric current is through constant current plate U ₁After be added in rectifier bridge U ₂On, U ₂Direct current output after capacitor C filtering, voltmeter U indication, be connected on by K ₁, K ₂On the polarity reversing contact of the pole plate regenerative circuit of forming, be connected on electrolytic cell E again ₁, ₂Pole plate on, constituted the electric control system of complete brine electrolysis welding-cutting machine.

Claims

A kind of brine electrolysis welding-cutting machine, it is grouped into by electrolytic cell (1), heat exchanger (2), knockout drum (3), dry gas tank (7), scaling powder jar (6), flash-back arrestor (8), circulating pump (4), check valve (5), Pressure gauge (10) and pressure controller (11), weldering (cutting) torch (9) and electrical control division, it is characterized in that:

A. electrolytic cell (1), heat exchanger (2), knockout drum (3), circulating pump (4) links to each other with pipeline and constitutes the closed circuit of brine electrolysis, knockout drum (3) is except that the gas-liquid mixed import and liquid outlet of bottom, its top also has two gas outlets, a gas outlet is through check valve (5), scaling powder jar (6), flash-back arrestor (8) links to each other with weldering (cutting) torch (9), another gas outlet is through check valve (5), dry gas tank (7), flash-back arrestor (8) links to each other with same welding torch (9), constitute the two-way air feed branch road of weldering (cutting) torch (9), the dry gas tank (7) in the air feed branch road by three-way pipe respectively with Pressure gauge (10), pressure controller (11) links to each other;

B. electric control system has also adopted controllable silicon constant current plate U except that basic gauge tap ₁With the electrolytic bath electrode plate regenerative circuit, controllable silicon constant current plate U wherein ₁Be used for stablizing and regulating the size of Faradaic current, the temperature of control electrolytic cell, it is connected on rectifier bridge U ₂Input circuit in, the electrolytic bath electrode plate regenerative circuit mainly is by contactor K ₁, K ₂And time interval follower K ₃Form K ₁, K ₂Parallel connection is controlled by K jointly ₃The state variation of two pairs of contacts, this regenerative circuit is in parallel with other gauge taps in the circuit, and its effect is at set intervals, makes the yin, yang pole plate transposing polarity of electrolytic cell, the pole plate of beginning passivation is regenerated, remain activity.