CN112025042A

CN112025042A - Arc welding device for welding inner barrel of reaction kettle

Info

Publication number: CN112025042A
Application number: CN202010786500.8A
Authority: CN
Inventors: 王丹丹
Original assignee: 王丹丹
Current assignee: Jiangsu Ruihang Power Technology Co.,Ltd.
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2020-12-04
Anticipated expiration: 2040-08-07
Also published as: CN112025042B

Abstract

The invention relates to the technical field of electric arc welding, and discloses an electric arc welding device for welding an inner barrel of a reaction kettle. This an electric arc welding device for reation kettle inner tube welding usefulness, through dynamics regulation and control device, the demagnetizer, spacing axle, cooperation between trace and the hoop card rail, in the twinkling of an eye when welding rod and welding piece contact, welding point marginal area magnetic flux density increases, through repelling each other between arc permanent magnetism piece and its inside magnetic flux, then produce one and increase and produce mutual power with original magnetic flux density to the welding rod, thereby offset it, then avoided the welding point marginal area magnetic flux density to increase in the twinkling of an eye the effort that produces influence welding rod welding point position to its welding position emergence skew's consequence, the accuracy nature of welding position has been improved, guarantee the sealed effect of its junction welding point.

Description

Arc welding device for welding inner barrel of reaction kettle

Technical Field

The invention relates to the technical field of electric arc welding, in particular to an electric arc welding device for welding an inner cylinder of a reaction kettle.

Background

The reaction kettle is a comprehensive reaction vessel, the structural function and the configuration accessories of the reaction kettle are designed into a reaction device according to reaction conditions, the reaction kettle needs to seal and weld the corresponding inner cylinder and the jacket of the reaction kettle before use, and the electric arc welding device takes electric arc as a heat source and utilizes the physical phenomenon of air discharge to convert electric energy into heat energy and mechanical energy required by welding so as to achieve the effect of connecting metal.

When the inner cylinder of the existing reaction kettle is welded, electric energy is converted into required heat energy and mechanical energy by starting electric arc welding, two separated pieces to be sealed at a joint are heated and fused together to play a role of sealing, but when the electric arc welding is carried out, an arc striking welding type is carried out on a connecting piece, the surface of the connecting piece is extruded and deformed at the moment, so that the magnetic flux density at the welding edge area of the connecting piece is larger than that at the welding area far away from the connecting piece, and a forward force is applied to the electric arc welding in the arc striking process under the action of the current in a magnetic field, so that the electric welding process is deviated, the welding point position is deviated, the defect that a welding line is generated due to partial non-fusion at the required welding position is caused, the sealing effect is poor, and meanwhile, under the action of high temperature of electric arc in the welding process, the existing electric arc welding device is generally used for removing harmful substances or gases such as smoke dust, aerosol and ozone to the outside through a ventilating fan, simultaneously introducing fresh air to maintain a working environment and avoid the harmful substances from being absorbed by human bodies, but the electric arc welding device is high in manufacturing cost through the fan, only discharges the harmful gases to the outside, does not effectively collect the harmful substances and still causes pollution to the environment, and therefore the electric arc welding device for welding the inner cylinder of the reaction kettle is provided.

Disclosure of Invention

The invention provides an arc welding device for welding an inner barrel of a reaction kettle, which has the advantages of improving the accuracy of a welding position, ensuring the sealing effect of a welding point at a joint, reducing the production cost and playing a role in protecting the environment, and solves the problem that when the inner barrel of the existing reaction kettle is welded, electric energy is converted into required heat energy and mechanical energy by starting the arc welding to heat and fuse two separated pieces to be sealed at the joint together so as to play a role in sealing, but when the arc welding is carried out, the surface of a connecting piece is extruded and deformed at the moment in an arc striking welding mode of the connecting piece, so that the magnetic flux density at the welding edge area far away from the connecting piece is larger than that at the welding area far away from the connecting piece, and a forward force is exerted on the arc welding in the arc striking process by the action of current in a magnetic field, thereby lead to electric welding process to take place the skew, thereby cause the deviation to appear in the welding point position, cause the defect that required welding department appears the part and does not fuse and produce the welding seam, lead to sealed effect poor, simultaneously at the welded in-process, receive under the effect of electric arc high temperature, can make the connecting piece part take place the reaction of evaporation and gasification, thereby produce a large amount of smoke and dust, harmful substance or gas such as aerosol and ozone, current generally through ventilating fan with its outside exclusion, introduce fresh air simultaneously, maintain operational environment, avoid harmful substance to be absorbed by the human body, but not only the cost is high through the fan, and just discharge harmful gas to the outside, do not carry out effective collection to harmful substance, still cause the problem of pollution to the environment.

In order to achieve the above purpose, the invention provides the following technical scheme to realize: an electric arc welding device for welding an inner barrel of a reaction kettle comprises a welding machine body, wherein a fixing device is fixedly connected to the bottom of the welding machine body, a welding rod is arranged in the middle of an inner cavity of the fixing device, the top end of the welding rod is clamped with the top of the inner cavity of the fixing device, a protective bucket is fixedly connected to the bottom end of the fixing device, the bottom end of the welding rod penetrates through the fixing device and extends to the lower side of the fixing device, a force regulating device is fixedly mounted inside the fixing device and located outside the welding rod, a gap exists between the welding rod and the force regulating device, a replacing device is fixedly connected to the right side of the inner cavity of the fixing device and comprises an annular plate, a limiting rail is movably sleeved at the front middle of the annular plate through a clamping ring, the bottom end of the limiting rail penetrates through the annular plate and extends to the lower side of the annular plate, the number of the limit rails is two, and an elastic telescopic part is arranged between the limit rails.

Optionally, the replacement device is located the right side of dynamics regulation and control device, an annular section of thick bamboo has been seted up in the positive outside of annular slab, the elastic expansion part is located the inside of an annular card section of thick bamboo, the surface of spacing rail and the inside swing joint of an annular card section of thick bamboo, the surface of elastic expansion part is located the inside of an annular card section of thick bamboo, both ends are connected with one side fixed connection in opposite directions of two spacing rails respectively about the elastic expansion part, the inside activity of an annular card section of thick bamboo of annular slab has cup jointed the magnetic ring piece, the left side of magnetic ring piece and the right side fixed connection of the spacing rail that is close to replacement device one side.

Optionally, the replacement device includes the ring pipe, isolated magnetic block has been cup jointed in the inside activity of ring pipe, the top fixedly connected with outlet duct of ring pipe, fixing device is run through and extends to fixing device's below to the bottom of outlet duct, the fixed intercommunication in bottom of ring pipe has the intake pipe, the bottom of intake pipe runs through fixing device and extends to fixing device's below, the bottom of outlet duct and intake pipe all is located the inside of protection fill, the intake pipe is located the inboard of outlet duct, fixing device is located fixedly connected with condenser tube between outlet duct and the intake pipe, isolated magnetic block is located the right side of magnetic ring block, the interval between isolated magnetic block center point and the ring pipe inner chamber bottom is one fifth of the interval length between isolated magnetic block center point and the ring pipe inner chamber top.

Optionally, the bottom of the inner cavity of the limit rail is provided with a linkage rod, the top of the linkage rod is provided with an annular clamping rail, the bottom of the inner cavity of the limit rail is movably sleeved with the inside of the annular clamping rail through a limit shaft, and the bottom end of the linkage rod is fixedly connected with a demagnetizing device.

Optionally, the demagnetizing device is including thermal-insulated spherical shell, the middle part fixedly connected with toper casing of thermal-insulated spherical shell inner chamber, the left side fixed mounting of toper casing inner chamber has the arc permanent magnetism piece, the right side fixedly connected with filling block of toper casing inner chamber, the left side of filling block and the right side fixed connection of arc permanent magnetism piece, the arc permanent magnetism piece is from last to the cross-sectional area increase gradually down, the biggest cross-sectional area of arc permanent magnetism piece is one more than five times of minimum transverse surface area.

The invention provides an electric arc welding device for welding an inner cylinder of a reaction kettle, which has the following beneficial effects:

1. this an electric arc welding device for reation kettle inner tube welding usefulness, through dynamics regulation and control device, demagnetizer, spacing axle, cooperation between trace and the hoop card rail, in the twinkling of an eye when welding rod and welding piece contact, demagnetizer's the bottom side and the marginal zone contact of welding point this moment, welding point marginal zone magnetic flux density increases, through repelling each other between arc permanent magnetism piece and its inside magnetic flux, then produce one and increase and produce mutual power with original magnetic flux density to the welding rod, thereby offset it, the effect that the effort that has avoided the increase of welding point marginal zone magnetic flux density to influence welding rod welding point position in the twinkling of an eye takes place the skew to its welding position takes place for its effect, the accuracy nature of welding position has been improved, guarantee the sealed effect of its junction welding point.

2. The electric arc welding device for welding the inner barrel of the reaction kettle, through the force regulation and control device, the replacement device and the protection hopper are matched, when the welding rod is continuously welded, the demagnetizing device moves towards two sides of the demagnetizing device, then the demagnetizing device drives the magnetic ring block to push the isolated magnetic block to move upwards, at the moment, air stored in the annular tube is released through the air outlet pipe, meanwhile, the air outlet pipe is positioned at the inner side of the air outlet pipe through the air inlet pipe, the air pressure balance is utilized to keep away, harmful substances and gas generated by heating the isolated magnetic block and a welding joint are collected, the air at the welding joint is effectively replaced in an equivalent manner, the harmful substances generated during welding are prevented from being absorbed by a human body, the health of workers is effectively maintained, meanwhile, the harmful substances are collected, the replacement device is utilized to replace the original fan, the production cost, plays a role in protecting the environment.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a detailed view of the displacement apparatus of the present invention;

FIG. 4 is an enlarged schematic view of the welding rod of the present invention;

FIG. 5 is a partially enlarged view of a linkage of the present invention;

FIG. 6 is a schematic view of the welding rod of the present invention in arc initiating contact;

FIG. 7 is a schematic view of the demagnetizing device of the present invention in a horizontal movement state;

fig. 8 is a detailed structural diagram of the demagnetizing device of the present invention.

In the figure: 1. welding the machine body; 2. a fixing device; 3. a force regulating device; 31. an annular plate; 32. a snap ring; 33. an elastic expansion member; 34. a limit rail; 35. a magnetic ring block; 4. welding a rod; 5. a demagnetizing device; 51. a thermally insulating spherical shell; 52. a conical housing; 53. filling blocks; 54. an arc permanent magnet; 6. circumferential rail clamping; 7. a displacement device; 71. an annular tube; 72. an air outlet pipe; 73. an air inlet pipe; 74. isolating the magnetic block; 8. a limiting shaft; 9. a linkage rod; 10. a cooling water pipe; 11. a protective bucket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, an arc welding device for welding an inner barrel of a reaction kettle comprises a welding machine body 1, a fixing device 2 is fixedly connected to the bottom of the welding machine body 1, a welding rod 4 is arranged in the middle of an inner cavity of the fixing device 2, the top end of the welding rod 4 is clamped with the top of the inner cavity of the fixing device 2, a protective bucket 11 is fixedly connected to the bottom end of the fixing device 2, the bottom end of the welding rod 4 penetrates through the fixing device 2 and extends to the lower side of the fixing device 2, a force regulating device 3 is fixedly installed inside the fixing device 2, the force regulating device 3 is located on the outer side of the welding rod 4, a gap exists between the welding rod 4 and the force regulating device 3, a replacement device 7 is fixedly connected to the right side of the inner cavity of the fixing device 2, the force regulating device 3 comprises an annular plate 31, a limiting rail 34 is movably sleeved on the, the bottom ends of the limit rails 34 penetrate through the annular plate 31 and extend to the lower part of the annular plate 31, and the number of the limit rails 34 is that an elastic telescopic part 33 is arranged between two limit rails 34.

Wherein, the replacement device 7 is located at the right side of the force regulation device 3, an annular cylinder is arranged at the outer side of the front surface of the annular plate 31, the elastic telescopic part 33 is located inside the annular clamping cylinder, the outer surface of the limit rail 34 is movably connected with the inside of the annular clamping cylinder, the outer surface of the elastic telescopic part 33 is located inside the annular clamping cylinder, the left end and the right end of the elastic telescopic part 33 are fixedly connected with one side of the two limit rails 34 opposite to each other respectively, a magnetic ring block 35 is movably sleeved inside the annular clamping cylinder of the annular plate 31, the left side of the magnetic ring block 35 is fixedly connected with the right side of the limit rail 34 close to one side of the replacement device 7, when the welding rod 4 is in contact with a welding part, the bottom side of the demagnetizing device 5 is in contact with the edge area of the welding point, the magnetic flux density at the edge area of the welding point is increased, the magnetic flux density is mutually repelled with the magnetic flux inside, therefore, the welding rod is offset, the consequence that the welding position is deviated by the acting force influencing the welding position of the welding rod 4 when the magnetic flux density of the edge area of the welding point is increased is avoided, the accuracy of the welding position is improved, and the sealing effect of the welding point at the joint is guaranteed.

Wherein, the replacement device 7 comprises an annular tube 71, an isolated magnetic block 74 is movably sleeved inside the annular tube 71, an air outlet pipe 72 is fixedly connected to the top of the annular tube 71, the bottom end of the air outlet pipe 72 penetrates through the fixing device 2 and extends to the lower part of the fixing device 2, an air inlet pipe 73 is fixedly communicated with the bottom of the annular tube 71, the bottom end of the air inlet pipe 73 penetrates through the fixing device 2 and extends to the lower part of the fixing device 2, the bottom ends of the air outlet pipe 72 and the air inlet pipe 73 are both positioned inside the protection bucket 11, the air inlet pipe 73 is positioned on the inner side of the air outlet pipe 72, a cooling water pipe 10 is fixedly connected between the air outlet pipe 72 and the air inlet pipe 73 of the fixing device 2, the isolated magnetic block 74 is positioned on the right side of the magnetic ring block 35, the distance between the center point of the isolated magnetic block 74 and the bottom end of, when the welding rod 4 is continuously welded, the demagnetizing device 5 moves towards two sides of the demagnetizing device, and then the magnetic ring block 35 is driven to push the isolated magnetic block 74 to move upwards, at the same time, the air stored in the annular tube 71 is released through the air outlet tube 72, and is positioned on the inner side of the air outlet tube 72 through the air inlet tube 73, the air pressure balance is utilized to keep away, harmful substances and gases generated by heating the isolated magnetic block 74 and a connecting point of a welding position are collected, so that the air at the welding position is effectively replaced by the same amount, the harmful substances generated during welding are prevented from being absorbed by human bodies, the health of workers is effectively kept, meanwhile, the harmful substances are collected, the replacement device 7 is utilized to replace the original fan, the production cost is reduced, meanwhile, the harmful substances are prevented from being discharged to the environment, the environment protection effect is achieved, and meanwhile, the air pressure balance at the, the gas that then avoids producing flows into the inside to reation kettle, causes reation kettle actual reaction condition to differentiate with the settlement condition then, is convenient for make the reation kettle normal operating after the welding, need not detect and clear up the inside gas of reation kettle.

Wherein, the bottom of spacing rail 34 inner chamber is provided with the trace 9, hoop card rail 6 has been seted up at the top of trace 9, the bottom of spacing rail 34 inner chamber is cup jointed through spacing axle 8 and the inside activity of hoop card rail 6, the bottom fixedly connected with demagnetizer 5 of trace 9, utilize spacing axle 8 to carry out sliding connection to trace 9 and spacing rail 34, then in the downward gliding overshoot of welding rod 4, demagnetizer 5 removes to one side of keeping away from welding rod 4, can repel the magnetic flux of welding department through arc permanent magnetism piece 54 at this moment, it moves to both sides to sparrow east, thereby reach dynamic balance's effect, it receives the influence of magnetic force and takes place the skew to reduce the welding point.

Wherein, the demagnetizing device 5 is including thermal-insulated spherical shell 51, the middle part fixedly connected with toper casing 52 of thermal-insulated spherical shell 51 inner chamber, the left side fixed mounting of toper casing 52 inner chamber has arc permanent-magnet piece 54, the right side fixedly connected with filling block 53 of toper casing 52 inner chamber, the left side of filling block 53 and the right side fixed connection of arc permanent-magnet piece 54, arc permanent-magnet piece 54 increases progressively from last to the cross-sectional area down in proper order, the biggest cross-sectional area of arc permanent-magnet piece 54 is one and a little five times of minimum transverse plane area, when the top of the inner chamber of radial card rail 6 on the trace 9 contacts with spacing axle 8, trace 9 drives demagnetizing device 5 at this moment and does the parabolic motion, separate with the welding piece through arc permanent-magnet piece 54 simultaneously, reduce the size of repulsion between the two, then be convenient for make the.

The working steps include that firstly, a worker holds a handle on the right side of the top of a welding machine body 1 by hand, then the bottom end of a welding rod 4 is aligned to a welding point of a reaction kettle most, then the welding machine body 1 is slowly moved downwards, two demagnetizing devices 5 are kept to be in contact with two sides of the welding point, the two demagnetizing devices 5 are mutually symmetrical by taking the vertical direction of the welding rod 4 as a symmetrical axis, then after the welding machine body 1 is started, the welding rod 4 is pressed until the welding rod is in contact with a position to be welded, then at the moment when the welding rod 4 is in contact with a welding part, the bottom side of the demagnetizing devices 5 is in contact with the edge area of the welding point, the magnetic flux density of the edge area of the welding point is increased, the arc permanent magnets 54 repel each other with the internal magnetic flux of the welding rod 4, then the original magnetic flux density is increased to generate a mutual, when welding pole 4 constantly moves down and welds, demagnetizer 5 removes to its both sides this moment, drive magnetic ring piece 35 then and promote isolated magnetic block 74 upward movement, at this moment, the air of depositing in the annular pipe 71 memory releases through outlet duct 72, be located the inboard of outlet duct 72 through intake pipe 73 simultaneously, utilize atmospheric pressure balance to keep away from, be heated produced harmful substance and gaseous collection to isolated magnetic block 74 and splice tie point, thereby effectively carry out the equivalent replacement to the air of splice, effectively collect harmful substance and gas, avoid it to cause the pollution to the environment.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an arc welding device for reation kettle inner tube welding usefulness, includes welding organism (1), its characterized in that: the bottom of the welding machine body (1) is fixedly connected with a fixing device (2), the middle of the inner cavity of the fixing device (2) is provided with a welding rod (4), the top end of the welding rod (4) is clamped with the top of the inner cavity of the fixing device (2), the bottom of the fixing device (2) is fixedly connected with a protective bucket (11), the bottom end of the welding rod (4) penetrates through the fixing device (2) and extends to the lower part of the fixing device (2), a force regulating and controlling device (3) is fixedly arranged in the fixing device (2), the force regulating and controlling device (3) is located on the outer side of the welding rod (4), a gap exists between the welding rod (4) and the force regulating and controlling device (3), the right side of the inner cavity of the fixing device (2) is fixedly connected with a replacing device (7), and the force regulating and controlling device (3) comprises a ring-shaped plate (, the positive middle part of annular plate (31) has cup jointed spacing rail (34) through joint ring (32) activity, the bottom of spacing rail (34) runs through annular plate (31) and extends to the below of annular plate (31), the quantity of spacing rail (34) is two be provided with elastic telescopic part (33) between spacing rail (34).

2. The arc welding apparatus for inner tube welding of a reaction vessel according to claim 1, wherein: replacement device (7) are located the right side of dynamics regulation and control device (3), an annular section of thick bamboo has been seted up in the positive outside of annular plate (31), elastic expansion part (33) are located the inside of an annular card section of thick bamboo, the surface of spacing rail (34) and the inside swing joint of an annular card section of thick bamboo, elastic expansion part's (33) surface is located the inside of an annular card section of thick bamboo, elastic expansion part (33) about both ends respectively with two spacing rail (34) one side fixed connection in opposite directions, annular plate (31) annular card section of thick bamboo's inside activity has cup jointed magnetic ring piece (35), the left side of magnetic ring piece (35) and the right side fixed connection of spacing rail (34) that is close to replacement device (7) one side.

3. An arc welding apparatus for use in welding an inner tube of a reaction vessel according to claim 2, wherein: the replacement device (7) comprises an annular pipe (71), an isolated magnetic block (74) is movably sleeved inside the annular pipe (71), an air outlet pipe (72) is fixedly connected to the top of the annular pipe (71), the bottom end of the air outlet pipe (72) penetrates through the fixing device (2) and extends to the lower portion of the fixing device (2), an air inlet pipe (73) is fixedly communicated with the bottom of the annular pipe (71), the bottom end of the air inlet pipe (73) penetrates through the fixing device (2) and extends to the lower portion of the fixing device (2), the bottom ends of the air outlet pipe (72) and the air inlet pipe (73) are both located inside the protective hopper (11), the air inlet pipe (73) is located on the inner side of the air outlet pipe (72), the fixing device (2) is located between the air outlet pipe (72) and the air inlet pipe (73) and fixedly connected with a cooling water pipe (10), and the isolated magnetic block (74) is located on the right side of the magnetic, the distance between the center point of the isolation magnetic block (74) and the bottom end of the inner cavity of the annular tube (71) is one fifth of the length of the distance between the center point of the isolation magnetic block (74) and the top end of the inner cavity of the annular tube (71).

4. The arc welding apparatus for inner tube welding of a reaction vessel according to claim 1, wherein: the bottom of spacing rail (34) inner chamber is provided with trace (9), hoop card rail (6) have been seted up at the top of trace (9), the bottom of spacing rail (34) inner chamber is cup jointed through spacing axle (8) and the inside activity of hoop card rail (6), the bottom fixedly connected with demagnetization device (5) of trace (9).

5. The arc welding apparatus for inner tube welding of a reaction vessel according to claim 1, wherein: the demagnetization device (5) is including thermal-insulated spherical shell (51), the middle part fixedly connected with toper casing (52) of thermal-insulated spherical shell (51) inner chamber, the left side fixed mounting of toper casing (52) inner chamber has arc permanent magnetism piece (54), the right side fixedly connected with filling block (53) of toper casing (52) inner chamber, the left side of filling block (53) and the right side fixed connection of arc permanent magnetism piece (54), arc permanent magnetism piece (54) is from last to cross-sectional area increase gradually down, the biggest cross sectional area of arc permanent magnetism piece (54) is one point five times of minimum cross sectional area.