CN103471228A - Electric heater with novel structure - Google Patents
Electric heater with novel structure Download PDFInfo
- Publication number
- CN103471228A CN103471228A CN2013104509656A CN201310450965A CN103471228A CN 103471228 A CN103471228 A CN 103471228A CN 2013104509656 A CN2013104509656 A CN 2013104509656A CN 201310450965 A CN201310450965 A CN 201310450965A CN 103471228 A CN103471228 A CN 103471228A
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- tube sheet
- electric heater
- millimeter
- flange
- cylindrical shell
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Abstract
The invention discloses an electric heater with a novel structure in the field of electrical equipment. The electric heater is formed by connecting a drum body, a support, tubular plates, a flat plate, an ear-type support, joint pipes and flanges; the upper end of the drum body is connected with one tubular plate by welding; the upper end of the tubular plate is connected with one short joint by welding; the upper end of the short joint is connected with one tubular plate by the flange; the tubular plate is connected with one flat plate by multiple sleeves; a pull rod and sleeves, which are vertically arranged, are arranged in the inner cavity of the drum body; a spacing pipe wraps the pull rod; the upper ends of the sleeves penetrate through the through holes in the tubular plates and are fixedly connected with the tubular plates by welding; the lower ends of the sleeves penetrate through the through holes of baffle plates and are fixedly connected with the baffle plates; the bottoms of the sleeves are welded with a sleeve liner plate; the baffle plates are arranged horizontally and are fixedly connected with the inner wall of the drum body; the multiple baffle plates are vertically and symmetrically arranged on two sides in the drum body at equal intervals in a staggered way. The electric heater with the novel structure has the advantages of reasonable structure, high heating efficiency, high structural strength, long service life, material saving, low cost, good thermal insulation property, convenience in maintenance and the like.
Description
Technical field
The present invention relates to a kind of electric equipment, more particularly, the present invention relates to a kind of intensity high, save that material, airtight performance are good, the electric heater of excellent thermal insulation performance and new structure easy to maintenance.
Background technology
The flange of prior art electric heater originally was arranged on the lower end that fused salt adds entrance, very inconvenient when installation, maintenance.Heating muff adopts and is threaded with tube sheet, and at first this method of attachment exists seal poor, causes the heat insulation effect of heater also poor; Secondly, the structural strength of heating muff and tube sheet is lower, causes heater in use easily to produce fault, causes the rise of maintenance cost, increases the weight of the operating cost of enterprise.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of intensity high, save that material, airtight performance are good, the electric heater of excellent thermal insulation performance and new structure easy to maintenance.
The objective of the invention is to be achieved through the following technical solutions:
A kind of electric heater of new structure, connected and composed by cylindrical shell, support, tube sheet, flat board, hanging support, adapter and flange.The upper end of described cylindrical shell connects a tube sheet by the method for welding, the upper end of described tube sheet connects a short circuit by the method for welding, two inclined-planes up and down that the outer ring of described tube sheet is the tapered shape in cross section, the port of described cylindrical shell and short circuit all is great inclined-plane, the little outer ring of inner ring, the angle of two inclined-plane formation up and down of this inclined-plane and tube sheet outer ring is solder joint, and its top of the horn is chamfering; The upper end of described short circuit connects a tube sheet by flange, between flange and tube sheet, is provided with pad, and described tube sheet connects a flat board by many sleeve pipes; One side of described short circuit connects acclivitous adapter and a flange; One side of described cylindrical shell is respectively equipped with adapter and flange at nearly tube sheet place and nearly bottom, the middle part of cylindrical shell is provided with hanging support, nameplate and support, described hanging support is provided with earth plate, the end face of cylinder body bottom is provided with low head, the central vertical of described low head connects one and takes over and flange, described cylinder lumen is provided with pull bar and the sleeve pipe of vertical storing, described pull bar outer cladding distance sink tube; The upper end of described sleeve pipe is fixedly connected with tube sheet through the through hole of tube sheet the method for employing welding, and its lower end is fixedly connected with deflection plate through the through hole of deflection plate, the bottom welding one sleeve pipe shrouding of sleeve pipe; Described deflection plate is the level storing and is fixedly connected with cylinder inboard wall, this deflection plate by a plurality of from being perpendicular bisected, the staggered symmetry arrangement in both sides in cylindrical shell, described distance sink tube through the screw thread of upper end after the through hole of deflection plate with the screw of tube sheet, be fixedly connected with, the screw thread of lower end fixes with nut after passing the through hole of bottom deflection plate.
Purpose of the present invention can also be achieved through the following technical solutions:
The equal chamfering in two ends up and down of described tube sheet through hole, the outer wall of the outer wall shape angle at 45 ° of the chamfering of its upper end and sleeve pipe, the chamfering of lower end and sleeve pipe forms 30 ° of angles, and the solder joint of upper end is triangular in shape, the solder joint of lower end is trapezoidal.The port that the tie point of described sleeve bottom and sleeve pipe shrouding is provided with the ,Qi outer end, gap of 1 millimeter is 60 ° of chamferings, and this gap and chamfering are solder joint.
The angle that the angle of described tube sheet ramp and shorted end interruption-forming and tube sheet lower inclined plane and barrel port form is 60 °, and described tube sheet upper surface and short circuit are provided with the gap of 1 mm wide, 3 millimeters deep, and the thickness of its solder joint bottom is 2 millimeters; Described tube sheet lower surface and cylindrical shell are provided with the gap of 1 mm wide, 5 millimeters deep, and the thickness of its solder joint bottom is 5 millimeters.The inner ring node of the outer ring of described short circuit and flange is for being welded and fixed.The sealing surface of described tube sheet is vertical with axis, and its perpendicularity allowable error is 0.03 millimeter; Pore upright opening tube plate sealing face, its perpendicularity allowable error is 0.1 millimeter; After drilling of tubesheet, >=96% bridge width must not be less than 5.89 millimeters ,≤4% bridge, and the minimum of a value of its bridge width is 3.48 millimeters; The two stud bolt hole chord length allowable errors that the stud bolt hole center circle diameter is adjacent are positive and negative 0.6 millimeter, and any two stud bolt hole chord length allowable tolerances are positive and negative 1 millimeter.The flatness of described deflection plate, 3 millimeters of its allowable errors; Adjacent two hole centre distance limit deviations are positive and negative 0.3 millimeter; The adjacent two hole centre distance limit deviations of permission 4% are positive and negative 0.5 millimeter; The limit deviation in any two holes is positive and negative 1 millimeter; Remove the burr of pore periphery after boring.
Compared with prior art, the present invention has following beneficial effect:
1. structure is more scientific and reasonable, and the efficiency of heating surface obviously improves;
2. structural strength is high, improves the service life of product;
3. the saving material, reduce production costs;
4. there is better seal and heat-insulating property;
5. easy to maintenance.
The accompanying drawing explanation
The electric heater schematic diagram that Fig. 1 is new structure;
The electric heater A position enlarged diagram that Fig. 2 is new structure;
The electric heater B position enlarged diagram that Fig. 3 is new structure;
The electric heater C position enlarged diagram that Fig. 4 is new structure.
In figure: flange 1-1,1-2,1-3,1-4, adapter 2-1,2-2,2-3,2-4, low head 3, pull bar 4, cylindrical shell 5, deflection plate 6, nameplate and support 7, earth plate 8, distance sink tube 9, tube sheet 10-1,10-2, short circuit 11, sleeve pipe 12-1,12-2, flat board 13, hanging support 14, nut 15, sleeve pipe shrouding 16, pad 17, solder joint 18.
The specific embodiment
Below in conjunction with accompanying drawing, essentiality content of the present invention is described in further detail:
As shown in Figure 1: a kind of electric heater of new structure is connected and composed by cylindrical shell 5, support 7, tube sheet 10-1,10-2, flat board 13, hanging support 14, adapter 2-1,2-2,2-3,2-4 and flange 1-1,1-2,1-3,1-4.The upper end of cylindrical shell 5 connects a tube sheet 10-1 by the method for welding, the upper end of tube sheet 10-1 connects a short circuit 11 by the method for welding, two inclined-planes (referring to Fig. 2) up and down that the outer ring of tube sheet 10-1 is the tapered shape in cross section, the port of cylindrical shell 5 and short circuit 11 all is great inclined-plane, the little outer ring of inner ring, the angle of two inclined-plane formation up and down of this inclined-plane and tube sheet 10-1 outer ring is solder joint 18, its the top of the horn is chamfering, make solder joint 18 there are three solders side, increased the intensity that tube sheet 10-1 is connected with short circuit 11 with cylindrical shell 5.The upper end of short circuit 11 connects a tube sheet 10-2 by flange 1-5, between flange 1-5 and tube sheet 10-2, is provided with pad 17, improves the seal that short circuit 11 is connected with tube sheet 10-2.Tube sheet 10-2 connects a flat board 13 by many sleeve pipe 12-1; One side of short circuit 11 connects acclivitous adapter 2-1 and a flange 1-4, and this adapter 2-1 is that fused salt adds entrance.One side of cylindrical shell 5 is respectively equipped with adapter 2-2,2-3 and flange 1-2,1-3 at nearly tube sheet 10-1 place and nearly bottom, the middle part of cylindrical shell 5 is provided with hanging support 14, nameplate and support 7, hanging support 14 is provided with earth plate 8, the end face of cylindrical shell 5 bottoms is provided with low head 3, and the central vertical of low head 3 connects one and takes over 2-1 and flange 1-1.Cylindrical shell 5 inner chambers are provided with pull bar 4 and the sleeve pipe 12-2 of vertical storing, pull bar 4 outer cladding distance sink tubes 9.The upper end of sleeve pipe 12-2 is fixedly connected with tube sheet 10-1 through the through hole of tube sheet 10-1 the method for employing welding, and its lower end is fixedly connected with deflection plate 6 through the through hole of deflection plate 6.The equal chamfering in two ends up and down of tube sheet 10-1 through hole, the outer wall of the outer wall shape angle at 45 ° of the chamfering of its upper end and sleeve pipe 12-2, the chamfering of lower end and sleeve pipe 12-2 forms 30 ° of angles, and the solder joint 18 of upper end is triangular in shape, the solder joint 18 of lower end is trapezoidal (referring to Fig. 3).The bottom welding one sleeve pipe shrouding 16 of sleeve pipe 12-2, the port that the pad of sleeve pipe 12-2 bottom and sleeve pipe shrouding 16 is provided with the ,Qi outer end, gap of 1 millimeter is 60 ° of chamferings, this gap and chamfering are that solder joint 18(is referring to Fig. 4).The sleeve pipe 12-2 of the electric heater of prior art adopts and is threaded with tube sheet 10-1, and the method for now using welding instead connects, and sealing and intensity that sleeve pipe 12-2 is connected with tube sheet 10-1 are further improved.Deflection plate 6 is the level storing and is fixedly connected with cylindrical shell 5 inwalls, this deflection plate 6 by a plurality of from being perpendicular bisected, the staggered symmetry arrangement in both sides in cylindrical shell 5, distance sink tube 9 through the screw thread of upper end after the through hole of deflection plate 6 with the screw of tube sheet 10-1, be fixedly connected with, the screw thread of lower end is through fixing with nut 15 after the through hole of bottom deflection plate 6.The angle that the angle that tube sheet 10-1 ramp and short circuit 11 ports form and tube sheet 10-1 lower inclined plane and cylindrical shell 5 ports form is 60 °, and tube sheet 10-1 upper surface and short circuit are provided with the gap of 1 mm wide, 3 millimeters deep, and the thickness of its solder joint 18 bottoms is 2 millimeters; Tube sheet 10-1 lower surface and cylindrical shell 5 are provided with the gap of 1 mm wide, 5 millimeters deep, and the thickness of its solder joint 18 bottoms is 5 millimeters.The inner ring node of the outer ring of short circuit 11 and flange 1-5 is for being welded and fixed.The sealing surface of tube sheet 10-2 is vertical with axis, and its perpendicularity allowable error is 0.03 millimeter; Pore upright opening tube sheet 10-2 sealing surface, its perpendicularity allowable error is 0.1 millimeter; After tube sheet 10-2 boring, >=96% bridge width must not be less than 5.89 millimeters ,≤4% bridge, and the minimum of a value of its bridge width is 3.48 millimeters; The two stud bolt hole chord length allowable errors that the stud bolt hole center circle diameter is adjacent are positive and negative 0.6 millimeter, and any two stud bolt hole chord length allowable tolerances are positive and negative 1 millimeter.The flatness of deflection plate 6,3 millimeters of its allowable errors; Adjacent two hole centre distance limit deviations are positive and negative 0.3 millimeter; The adjacent two hole centre distance limit deviations of permission 4% are positive and negative 0.5 millimeter; The limit deviation in any two holes is positive and negative 1 millimeter; Remove the burr of pore periphery after boring.
Claims (7)
1. the electric heater of a new structure, by cylindrical shell, support, tube sheet, flat board, hanging support, adapter and flange, connected and composed, it is characterized in that: the upper end of described cylindrical shell connects a tube sheet by the method for welding, the upper end of described tube sheet connects a short circuit by the method for welding, two inclined-planes up and down that the outer ring of described tube sheet is the tapered shape in cross section, the port of described cylindrical shell and short circuit all is great inclined-plane, the little outer ring of inner ring, the angle of two inclined-plane formation up and down of this inclined-plane and tube sheet outer ring is solder joint, and its top of the horn is chamfering; The upper end of described short circuit connects a tube sheet by flange, between flange and tube sheet, is provided with pad, and described tube sheet connects a flat board by many sleeve pipes; One side of described short circuit connects acclivitous adapter and a flange; One side of described cylindrical shell is respectively equipped with adapter and flange at nearly tube sheet place and nearly bottom, the middle part of cylindrical shell is provided with hanging support, nameplate and support, described hanging support is provided with earth plate, the end face of cylinder body bottom is provided with low head, the central vertical of described low head connects one and takes over and flange, described cylinder lumen is provided with pull bar and the sleeve pipe of vertical storing, described pull bar outer cladding distance sink tube; The upper end of described sleeve pipe is fixedly connected with tube sheet through the through hole of tube sheet the method for employing welding, and its lower end is fixedly connected with deflection plate through the through hole of deflection plate, the bottom welding one sleeve pipe shrouding of sleeve pipe; Described deflection plate is the level storing and is fixedly connected with cylinder inboard wall, this deflection plate by a plurality of from being perpendicular bisected, the staggered symmetry arrangement in both sides in cylindrical shell, described distance sink tube through the screw thread of upper end after the through hole of deflection plate with the screw of tube sheet, be fixedly connected with, the screw thread of lower end fixes with nut after passing the through hole of bottom deflection plate.
2. the electric heater of new structure according to claim 1, it is characterized in that: the equal chamfering in two ends up and down of described tube sheet through hole, the outer wall of the outer wall shape angle at 45 ° of the chamfering of its upper end and sleeve pipe, the chamfering of lower end and sleeve pipe forms 30 ° of angles, and the solder joint of upper end is triangular in shape, the solder joint of lower end is trapezoidal.
3. the electric heater of new structure according to claim 1, it is characterized in that: the port that the tie point of described sleeve bottom and sleeve pipe shrouding is provided with the ,Qi outer end, gap of 1 millimeter is 60 ° of chamferings, and this gap and chamfering are solder joint.
4. the electric heater of new structure according to claim 1, it is characterized in that: the angle that the angle of described tube sheet ramp and shorted end interruption-forming and tube sheet lower inclined plane and barrel port form is 60 °, described tube sheet upper surface and short circuit are provided with the gap of 1 mm wide, 3 millimeters deep, and the thickness of its solder joint bottom is 2 millimeters; Described tube sheet lower surface and cylindrical shell are provided with the gap of 1 mm wide, 5 millimeters deep, and the thickness of its solder joint bottom is 5 millimeters.
5. the electric heater of new structure according to claim 1, it is characterized in that: the inner ring node of the outer ring of described short circuit and flange is for being welded and fixed.
6. the electric heater of new structure according to claim 1, it is characterized in that: the sealing surface of described tube sheet is vertical with axis, and its perpendicularity allowable error is 0.03 millimeter; Pore upright opening tube plate sealing face, its perpendicularity allowable error is 0.1 millimeter; After drilling of tubesheet, >=96% bridge width must not be less than 5.89 millimeters ,≤4% bridge, and the minimum of a value of its bridge width is 3.48 millimeters; The two stud bolt hole chord length allowable errors that the stud bolt hole center circle diameter is adjacent are positive and negative 0.6 millimeter, and any two stud bolt hole chord length allowable tolerances are positive and negative 1 millimeter.
7. the electric heater of new structure according to claim 1, is characterized in that: the flatness of described deflection plate, 3 millimeters of its allowable errors; Adjacent two hole centre distance limit deviations are positive and negative 0.3 millimeter; The adjacent two hole centre distance limit deviations of permission 4% are positive and negative 0.5 millimeter; The limit deviation in any two holes is positive and negative 1 millimeter; Remove the burr of pore periphery after boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450965.6A CN103471228B (en) | 2013-09-29 | 2013-09-29 | The electric heater of new structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310450965.6A CN103471228B (en) | 2013-09-29 | 2013-09-29 | The electric heater of new structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103471228A true CN103471228A (en) | 2013-12-25 |
| CN103471228B CN103471228B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310450965.6A Active CN103471228B (en) | 2013-09-29 | 2013-09-29 | The electric heater of new structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103471228B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1226456A (en) * | 1959-01-14 | 1960-07-13 | evaporator and boiler, in particular to exploit the heat released by nuclear reactors | |
| GB956129A (en) * | 1962-04-06 | 1964-04-22 | Foster Wheeler Ltd | Improvements in and relating to tube bundles for heat exchangers, vapour generatorsand the like |
| SU1125460A1 (en) * | 1983-03-17 | 1984-11-23 | Конструкторское Бюро "Энергия" | Shell-and-tube heat exchanger |
| JP2000193381A (en) * | 1998-12-23 | 2000-07-14 | American Air Liquide Inc | Heat exchanger for preheating oxidizing gas |
| CN201449164U (en) * | 2009-07-13 | 2010-05-05 | 山东早春创尔沃热泵技术有限公司 | Uniform flow highly-efficient heat exchanger |
| CN201589061U (en) * | 2009-12-17 | 2010-09-22 | 乐山永祥硅业有限公司 | Liquid chlorine vaporizing device |
| CN201852496U (en) * | 2010-11-05 | 2011-06-01 | 西部金属材料股份有限公司 | Tantalum heater |
| CN201866924U (en) * | 2010-11-22 | 2011-06-15 | 重庆欣雨压力容器制造有限责任公司 | Electric heater |
| CN202254239U (en) * | 2011-09-21 | 2012-05-30 | 南通新邦化工科技有限公司 | Electric heater |
-
2013
- 2013-09-29 CN CN201310450965.6A patent/CN103471228B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1226456A (en) * | 1959-01-14 | 1960-07-13 | evaporator and boiler, in particular to exploit the heat released by nuclear reactors | |
| GB956129A (en) * | 1962-04-06 | 1964-04-22 | Foster Wheeler Ltd | Improvements in and relating to tube bundles for heat exchangers, vapour generatorsand the like |
| SU1125460A1 (en) * | 1983-03-17 | 1984-11-23 | Конструкторское Бюро "Энергия" | Shell-and-tube heat exchanger |
| JP2000193381A (en) * | 1998-12-23 | 2000-07-14 | American Air Liquide Inc | Heat exchanger for preheating oxidizing gas |
| CN201449164U (en) * | 2009-07-13 | 2010-05-05 | 山东早春创尔沃热泵技术有限公司 | Uniform flow highly-efficient heat exchanger |
| CN201589061U (en) * | 2009-12-17 | 2010-09-22 | 乐山永祥硅业有限公司 | Liquid chlorine vaporizing device |
| CN201852496U (en) * | 2010-11-05 | 2011-06-01 | 西部金属材料股份有限公司 | Tantalum heater |
| CN201866924U (en) * | 2010-11-22 | 2011-06-15 | 重庆欣雨压力容器制造有限责任公司 | Electric heater |
| CN202254239U (en) * | 2011-09-21 | 2012-05-30 | 南通新邦化工科技有限公司 | Electric heater |
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| Publication number | Publication date |
|---|---|
| CN103471228B (en) | 2016-01-20 |
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