CN202388109U - Inner hole welding gun head of quenching heat exchanger - Google Patents
Inner hole welding gun head of quenching heat exchanger Download PDFInfo
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- CN202388109U CN202388109U CN 201120572736 CN201120572736U CN202388109U CN 202388109 U CN202388109 U CN 202388109U CN 201120572736 CN201120572736 CN 201120572736 CN 201120572736 U CN201120572736 U CN 201120572736U CN 202388109 U CN202388109 U CN 202388109U
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Abstract
The utility model discloses an inner hole welding gun head for a quenching heat exchanger. The inner hole welding gun head comprises a stainless steel guide pipe, an insulation body, a guide nozzle fixing seat, a welding wire guide nozzle, a welding wire, a water cooling circulation copper pipe, an argon shield air pipe, an electrode wire and a spray nozzle assembly with a tungsten electrode, wherein the insulation body is butted with the stainless steel guide pipe to form a hollow inner cavity; the inner cavity of the insulation body is provided with a copper seat; one end of the copper seat is communicated with the outer part of the insulation body; the guide nozzle fixing seat is arranged on the insulation body and extends to the lower end of the insulation body; the welding wire guide nozzle is fixed to the guide nozzle fixing seat; the welding wire is arranged on the welding wire guide nozzle in a penetrating manner and is welded with the tungsten electrode; one end of the water cooling circulation copper pipe, one end of the argon shield air pipe and one end of the electrode wire are respectively arranged in the inner cavity in a penetrating manner and are fixedly connected with the copper seat; and the spray nozzle assembly is in thread connection with the copper seat. The welding gun head can extend into an inner pipe of the quenching heat exchanger for welding through the stainless steel guide pipe and bakelite, so that the difficult problem that the welding seams in the inner pipe can not be welded can be effectively solved; and the welding gun head has the characteristics of simple structure and convenience in operation and manufacturing.
Description
Technical field
The utility model relates to that rapid-cooling heat exchanger equipment welds employed a kind of welder in the petrochemical industry; Particularly relate to a kind of pipe in the ethylene quenching heat exchanger that stretches into, pipe weld seam in the rapid-cooling heat exchanger is carried out the rapid-cooling heat exchanger endoporus welding gun head that endoporus welds.
Background technology
In ethylene production; Making the process of cracking gas cooling is a quenching process; Pintsch process gas (about 750～850 ° of C) by pyrolysis furnace comes out must be cooled to the temperature (about 450～750 ° of C) that cracking reaction stops basically rapidly in the extremely short time.Otherwise, the condensate tar that will generate owing to cracking gas secondary response in cooling procedure and coke in deposition on the tube wall down, heat transfer situation worsens, the outlet temperature rising makes yields reductions such as ethene, propylene.Therefore, must in the extremely short time, cool down cracking gas.
Since the sixties, just developed the method-rapid-cooling heat exchanger that cools off indirectly with water under high pressure.The high pressure rapid-cooling heat exchanger can suppress secondary response, can get off the heat recovery in the cracking gas again, produces high steam, and high steam is conversely again as the power of this device, is used for Driven Compressor.Therefore, rapid-cooling heat exchanger has great importance to the steady running and the reduction operating cost of ethylene unit.Whole ethene WHRS has been formed a closed circuit by rapid-cooling heat exchanger (TLE), drum and tedge down-comer; Constantly take the heat of cracking gas away; Constantly produce high steam and supply with steam turbine, safely and steadily run to guarantee cracking of ethylene.
In the prior art, manufacture and design and the welding procedure of rapid-cooling heat exchanger have experienced three phases: (1) first generation fabrication scheme: after interior pipe extended in advance, outer tube was made by two (being commonly called as " tile ") splicing; (2) second generation fabrication scheme: after interior pipe extended in advance, the welding of interior pipe and upper connector was adopted and is welded by outer tube tapping plug-in type.
Yet, because the ethylene quenching heat exchanger operating mode in producing is complicated, must adapt to high temperature, high pressure, high-quality and high flow rate, more than two kinds of structures because welding capacity is big, yielding and corrosion, stress is concentrated, thermal (temperature difference) stress is big, so progressively withdraw from the market; Progressively changing to third generation manufacturing approach and studying both at home and abroad now; Pipe adopts internal bore welding with the welding of upper connector promptly; The method of taking integral body to go into the furnace treatment reason then guarantees the quality of whole equipment, but how in the interior pipe of rapid-cooling heat exchanger, to be welded into for the key breakthrough point.
Therefore, for addressing the above problem, provide a kind of and can stretch into pipe in the rapid-cooling heat exchanger to carry out the technology of rapid-cooling heat exchanger endoporus welding gun head of welding of weld seam particularly important.
The utility model content
The purpose of the utility model is to avoid weak point of the prior art and a kind of rapid-cooling heat exchanger endoporus welding gun head is provided, and this welding gun head can stretch into to manage in the rapid-cooling heat exchanger and carry out the welding of weld seam, and simple in structure, easy to operate, is convenient to make.
The purpose of the utility model realizes through following technical scheme:
A kind of rapid-cooling heat exchanger endoporus welding gun head is provided,
Include stainless steel pipe, insulator, lead the mouth holder, welding wire leads mouth, welding wire, water-cooled but circulate copper pipe, argon shield tracheae, electrode wires and be provided with the nozzle assembly of tungsten electrode;
Said insulator and said stainless steel pipe dock and form the inner chamber of hollow; Said insulator inner chamber is provided with the copper seat, an end of said copper seat and the external communications of said insulator;
Saidly lead the below that the mouth holder is arranged at said insulator and extends to said insulator;
Said welding wire is led mouth and is fixed in the said mouth holder of leading, and said welding wire is arranged in said welding wire and leads mouth and weld with said tungsten electrode;
But the circulate end of an end and said electrode wires of an end of copper pipe, said argon shield tracheae of said water-cooled is arranged in said inner chamber respectively and is fixedly connected with said copper seat;
Said nozzle assembly is threaded with said copper seat.
Wherein, Said nozzle assembly also includes porcelain mouth, air sifter and sandwich, and said air sifter is threaded with said copper seat, and said porcelain mouth is threaded with said air sifter; Said sandwich being arranged between said copper seat and the said air sifter, said tungsten electrode are fixed in said sandwich and extend out to outside the said porcelain mouth.
Wherein, said insulating part is a bakelite.
Wherein, said insulating part includes the extension that is threaded with the inner tubal wall of said stainless steel pipe.
The beneficial effect of the utility model:
A kind of rapid-cooling heat exchanger endoporus welding gun head of the utility model includes stainless steel pipe, insulator, leads the mouth holder, welding wire leads mouth, welding wire, water-cooled but circulate copper pipe, argon shield tracheae, electrode wires and be provided with the nozzle assembly of tungsten electrode; Said insulator and said stainless steel pipe dock and form the inner chamber of hollow; Said insulator inner chamber is provided with the copper seat, an end of said copper seat and the external communications of said insulator; Saidly lead the below that the mouth holder is arranged at said insulator and extends to said insulator; Said welding wire is led mouth and is fixed in the said mouth holder of leading, and said welding wire is arranged in said welding wire and leads mouth and weld with said tungsten electrode; But the circulate end of an end and said electrode wires of an end of copper pipe, said argon shield tracheae of said water-cooled is arranged in said inner chamber respectively and is fixedly connected with said copper seat; Said nozzle assembly is threaded with said copper seat.
Compared with prior art, the utlity model has following characteristics:
(1) welding gun head is stretched to pipe inside in the rapid-cooling heat exchanger through stainless steel tube and bakelite, and the difficult problem that the pipe internal weld seams can't be welded in can effectively solving has been avoided the defective in outer tube perforate or two assembly units of outer tube;
(2) carry out the water-cooled circulation through special copper pipe in the welding gun head, rifle head temperature is protected welding gun head in the time of can effectively reducing welding, and has guaranteed the continuity of welding;
(3) argon gas is transported to the air sifter in the porcelain mouth through special-purpose tracheae in stainless steel and the bakelite, is full of by argon gas around the weld seam when making welding, has effectively guaranteed the welding quality of weld seam;
(4) lead mouth through special welding wire, make welding wire in the wire-feed motor can adjust to the most appropriate position and weld, guaranteed the moulding of welding quality and weld seam;
(5) this kind project organization is simple, and is ingenious, can carry out conversion according to different interior pipes and position while welding, and the welding adaptive capacity is strong, and welding effect is good.
Description of drawings
Utilize accompanying drawing that the utility model is described further; But the embodiment in the accompanying drawing does not constitute any restriction to the utility model; For those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to following accompanying drawing.
Fig. 1 is the structural representation of a kind of rapid-cooling heat exchanger endoporus welding gun head of the utility model.
In Fig. 1, include:
1---stainless steel pipe,
2---bakelite,
3---the water-cooled copper pipe that but circulates,
4---the argon shield tracheae,
5---welding wire is led mouth,
6---electrode wires,
7---lead the mouth holder,
8---tungsten electrode,
9---the porcelain mouth,
10---air sifter,
11---sandwich,
12---the copper seat,
13---welding wire.
The specific embodiment
In conjunction with following examples the utility model is further described.
The specific embodiment of a kind of rapid-cooling heat exchanger endoporus welding gun head of the utility model; As shown in Figure 1, include stainless steel pipe, insulator, lead the mouth holder, welding wire leads mouth, welding wire, water-cooled but circulate copper pipe, argon shield tracheae, electrode wires and be provided with the nozzle assembly of tungsten electrode; Said insulator and said stainless steel pipe dock and form the inner chamber of hollow; Said insulator inner chamber is provided with the copper seat, an end of said copper seat and the external communications of said insulator; Saidly lead the below that the mouth holder is arranged at said insulator and extends to said insulator; Said welding wire is led mouth and is fixed in the said mouth holder of leading, and said welding wire is arranged in said welding wire and leads mouth and weld with said tungsten electrode.Stainless steel pipe and insulator are through being threaded, and inner hollow, can be stretched in the rapid-cooling heat exchanger pipe inside and weld.Lead the mouth holder through being bolted on the insulator, welding wire is led mouth and is fixed to suitable locus through leading the mouth holder, and welding wire can pass welding wire and lead mouth and arrive tungsten electrode and weld.
But the circulate end of an end and said electrode wires of an end of copper pipe, said argon shield tracheae of said water-cooled is arranged in said inner chamber respectively and is fixedly connected with said copper seat; Said nozzle assembly is threaded with said copper seat.The water-cooled inner chamber of copper pipe through hollow that but circulate arrives the copper seat, the rifle head cooled off, for the continuity of welding provides assurance; The argon shield tracheae arrives the copper seat through the endoporus of hollow, and argon shield is provided; Electrode wires arrives the copper seat through the endoporus of hollow, in order to conduction.
Concrete; Said nozzle assembly also includes porcelain mouth, air sifter and sandwich, and said air sifter is threaded with said copper seat, and said porcelain mouth is threaded with said air sifter; Said sandwich being arranged between said copper seat and the said air sifter, said tungsten electrode are fixed in said sandwich and extend out to outside the said porcelain mouth.Air sifter is fixedly connected on the copper seat through screw thread, can prevent that foreign material from getting into welding region, and the porcelain mouth is fixed in through being threaded on the air sifter in order to logical argon gas, and argon shield is provided, and is sandwich between copper seat and air sifter, fixedly tungsten electrode.
A kind of rapid-cooling heat exchanger endoporus welding gun head of the utility model stretches into pipe in the ethylene quenching heat exchanger, and pipe weld seam in the rapid-cooling heat exchanger is carried out the endoporus welding.The rifle head can be stretched in the rapid-cooling heat exchanger pipe inside through stainless steel pipe and bakelite and weld the difficult problem that the pipe internal weld seams can't be welded in can effectively solving; Simultaneously, the utility model also has following characteristics:
(1) welding gun head is stretched to pipe inside in the rapid-cooling heat exchanger through stainless steel tube and bakelite, and the difficult problem that the pipe internal weld seams can't be welded in can effectively solving has been avoided the defective in outer tube perforate or two assembly units of outer tube;
(2) carry out the water-cooled circulation through special copper pipe in the welding gun head, rifle head temperature is protected welding gun head in the time of can effectively reducing welding, and has guaranteed the continuity of welding;
(3) argon gas is transported to the air sifter in the porcelain mouth through special-purpose tracheae in stainless steel and the bakelite, is full of by argon gas around the weld seam when making welding, has effectively guaranteed the welding quality of weld seam;
(4) lead mouth through special welding wire, make welding wire in the wire-feed motor can adjust to the most appropriate position and weld, guaranteed the moulding of welding quality and weld seam;
(5) this kind project organization is simple, and is ingenious, can carry out conversion according to different interior pipes and position while welding, and the welding adaptive capacity is strong, and welding effect is good.
Concrete, said insulating part is a bakelite.Bakelite have do not absorb water, non-conductive, high temperature resistant, advantages of high strength.
Concrete, said insulating part includes the extension that is threaded with the inner tubal wall of said stainless steel pipe.Screw thread through extension is threaded good connecting effect with the internal thread of stainless steel pipe.
Should be noted that at last; Above embodiment is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection domain, although with reference to preferred embodiment the utility model has been done explanation at length, those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of the utility model, and not break away from the essence and the scope of the utility model technical scheme.
Claims (4)
1. rapid-cooling heat exchanger endoporus welding gun head is characterized in that:
Include stainless steel pipe, insulator, lead the mouth holder, welding wire leads mouth, welding wire, water-cooled but circulate copper pipe, argon shield tracheae, electrode wires and be provided with the nozzle assembly of tungsten electrode;
Said insulator and said stainless steel pipe dock and form the inner chamber of hollow; Said insulator inner chamber is provided with the copper seat, an end of said copper seat and the external communications of said insulator;
Saidly lead the below that the mouth holder is arranged at said insulator and extends to said insulator;
Said welding wire is led mouth and is fixed in the said mouth holder of leading, and said welding wire is arranged in said welding wire and leads mouth and weld with said tungsten electrode;
But the circulate end of an end and said electrode wires of an end of copper pipe, said argon shield tracheae of said water-cooled is arranged in said inner chamber respectively and is fixedly connected with said copper seat;
Said nozzle assembly is threaded with said copper seat.
2. a kind of rapid-cooling heat exchanger endoporus welding gun head according to claim 1; It is characterized in that: said nozzle assembly also includes porcelain mouth, air sifter and sandwich; Said air sifter is threaded with said copper seat; Said porcelain mouth is threaded with said air sifter, said sandwich being arranged between said copper seat and the said air sifter, and said tungsten electrode is fixed in said sandwich and extend out to outside the said porcelain mouth.
3. a kind of rapid-cooling heat exchanger endoporus welding gun head according to claim 2, it is characterized in that: said insulating part is a bakelite.
4. a kind of rapid-cooling heat exchanger endoporus welding gun head according to claim 3, it is characterized in that: said insulating part includes the extension that is threaded with the inner tubal wall of said stainless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120572736 CN202388109U (en) | 2011-12-31 | 2011-12-31 | Inner hole welding gun head of quenching heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120572736 CN202388109U (en) | 2011-12-31 | 2011-12-31 | Inner hole welding gun head of quenching heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202388109U true CN202388109U (en) | 2012-08-22 |
Family
ID=46663061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120572736 Expired - Lifetime CN202388109U (en) | 2011-12-31 | 2011-12-31 | Inner hole welding gun head of quenching heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202388109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513668A (en) * | 2011-12-31 | 2012-06-27 | 茂名重力石化机械制造有限公司 | Welding gun head for inner hole of sharp quenching heat exchanger |
| CN104493337A (en) * | 2014-10-21 | 2015-04-08 | 河北省景县宏远通讯有限公司 | Automatic gas shielded welding device of longitudinal gap in steel pipe cavity |
-
2011
- 2011-12-31 CN CN 201120572736 patent/CN202388109U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102513668A (en) * | 2011-12-31 | 2012-06-27 | 茂名重力石化机械制造有限公司 | Welding gun head for inner hole of sharp quenching heat exchanger |
| CN102513668B (en) * | 2011-12-31 | 2014-04-09 | 茂名重力石化机械制造有限公司 | Welding gun head for inner hole of sharp quenching heat exchanger |
| CN104493337A (en) * | 2014-10-21 | 2015-04-08 | 河北省景县宏远通讯有限公司 | Automatic gas shielded welding device of longitudinal gap in steel pipe cavity |
| CN104493337B (en) * | 2014-10-21 | 2016-06-08 | 河北省景县宏远通讯有限公司 | A kind of steel pipe intracavity longitudinal joint automatic gas shielded welding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 525024 Guangdong City, Maoming Province Ring West Road, No. 91 Patentee after: Maoming gravity Petrochemical Equipment Co Ltd Address before: 525024 Maoming City, Guangdong Province West Road, Maoming City, the gravity of the Petrochemical Machinery Manufacturing Co., Ltd., Patentee before: The Challenge Petrochemical Machinery Corporation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |