CN105848318A - Direct resistance type electric heater - Google Patents
Direct resistance type electric heater Download PDFInfo
- Publication number
- CN105848318A CN105848318A CN201610309683.8A CN201610309683A CN105848318A CN 105848318 A CN105848318 A CN 105848318A CN 201610309683 A CN201610309683 A CN 201610309683A CN 105848318 A CN105848318 A CN 105848318A
- Authority
- CN
- China
- Prior art keywords
- contact rod
- clamp nut
- heater
- electric resistor
- direct electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/04—Waterproof or air-tight seals for heaters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/06—Heater elements structurally combined with coupling elements or holders
- H05B3/08—Heater elements structurally combined with coupling elements or holders having electric connections specially adapted for high temperatures
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a direct resistance type electric heater. The direct resistance type electric heater comprises a tubular housing, multiple heating elements are arranged in the tubular housing, the tubular housing is internally provided with multiple insulation support assemblies arranged at intervals, the heating elements are supported and fixed in an insulated mode through the insulation support assemblies, the lead-out ends of the heating elements are connected with conductive bars, metal protective tubes are welded on the tubular housing, the conductive bars pass through the metal protective tubes to extend out of the tubular housing, the upper ends of the metal protective tubes are provided with junction boxes, and the conductive bars extend into the junction boxes to form wiring ends. By using such a structure, the structural design is compact, the occupied space is small, heat is concentrated, the heating efficiency is greatly improved, besides, through arrangement of the conductive bars and sealing structures between the conductive bars and a metal protective housing, the safety and the reliability are ensured, the concrete structure of the insulation support assemblies, in particular, enables fluid pass performance to be quite good, and the heating efficiency is further improved.
Description
Technical field
The present invention relates to a kind of electric heater, specifically a kind of directly electric resistor heater.
Background technology
At present, the Process heat of industrial circle generally uses traditional circulating heater to heat, and its heater element is electric heating tube.Adding heat pipe typically uses metal tube as housing, and alloy resistance wire, as heating conductor, fills insulating heat-conduction material magnesia powder between housing and resistance wire.During work, heat is delivered to shell surface from resistance wire and there is multiple heat conduction link, it may appear that heat conduction loss is big, the situation that the thermal efficiency is low.Particularly in some high-power heating occasions, considering for designed reliability, adding tube surface load will not be high, and for meeting Process heat demand, adding heat pipe quantity certainly will increase, and heat loss is bigger.Meanwhile, it is bigger than normal that this will also result in the whole volume of electric heater, causes product cost to be substantially improved, and market competition advantage is the most not enough.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple and compact for structure, and the efficiency of heating surface is high, the direct electric resistor heater that space hold is little, integrated cost is low, security reliability is high.
In order to solve above-mentioned technical problem, the direct electric resistor heater of the present invention, including being connected to the tubular shell that adds on hot channel, many heater elements of arrangement in tubular shell, there is in tubular shell polylith spaced insulating supporting assembly, each heater element supports fixing by insulating supporting component insulation, the exit of heater element connects contact rod, protection metal pipe it is welded with on tubular shell, contact rod reaches outside tubular shell through protection metal pipe, the upper end of protection metal pipe is provided with rosette, contact rod forms terminals in extending into rosette.
Being provided with ceramic insulating tube between described contact rod and protection metal pipe, the upper end of described protection metal pipe is welded with the externally threaded contiguous block that has being positioned at rosette, described contiguous block is rotary with clamp nut, has gap between described contact rod and clamp nut.
Being welded with the compact heap being enclosed within contact rod on described contact rod, described compact heap is positioned at clamp nut, is mounted with sealing gasket, is provided with lower seal pad between described compact heap and the upper surface of contiguous block between described compact heap and the inner face of clamp nut.
The upper end of described contact rod is provided with threaded section, described threaded section is rotary with clamp nut, is provided with insulated enclosure circle between described clamp nut and clamp nut.
Described upper sealing gasket has the insulation sleeve that one section of bore section to clamp nut top extends, and this insulation sleeve extend between clamp nut and contact rod；Described lower seal pad has one section of insulation sleeve extended below clamp nut, and this insulation sleeve extend between contiguous block and contact rod.
Described insulating supporting assembly includes gripper shoe and is arranged on heater element and is positioned at the insulating ceramics circle of gripper shoe both sides, and described gripper shoe has the through hole that heater element can be made to pass, and is provided with fixing card between described gripper shoe and insulating ceramics circle.
Described insulating ceramics circle has annular groove, and described fixing card is the U-shaped card being stuck in annular groove, and described U-shaped card is provided with leg, and the leg of U-shaped card fixedly mounts on the supporting plate.
Described heater element is the many U-shaped resistance wires being arranged in tubular shell.
After using above-mentioned structure; due to the many heater elements supported by insulating supporting component insulation directly arranged in tubular shell; not only structure is compact to design; take up room little; and heat is concentrated; the efficiency of heating surface is greatly improved; additionally; arrange reaches the sealing structure between the contact rod outside tubular shell and contact rod and metal coating shell by protection metal pipe; ensure that its security reliability; particularly to make fluid pass through performance the best for the concrete structure of insulating supporting assembly, thus further increases the efficiency of heating surface.
Accompanying drawing explanation
Fig. 1 is the structural representation of the direct electric resistor heater of the present invention；
Fig. 2 is cross section structure schematic diagram at the A-A of Fig. 1；
Fig. 3 is the structural representation in the present invention at exit；
Fig. 4 is the main TV structure schematic diagram of insulating supporting assembly in the present invention；
Fig. 5 is the side-looking structural representation of insulating supporting assembly in the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, the direct electric resistor heater of the present invention is described in further detail.
As shown in the figure, the direct electric resistor heater of the present invention, including being connected to the tubular shell 1 that adds on hot channel, many heater elements 2 of arrangement in tubular shell 1, described heater element 2 is the many U-shaped resistance wires being arranged in tubular shell, as seen from the figure, there is in tubular shell 1 polylith spaced insulating supporting assembly 3, each heater element 2 supports fixing by insulating supporting component insulation, the exit of heater element 2 connects contact rod 4, protection metal pipe 5 it is welded with on tubular shell 1, contact rod 4 reaches outside tubular shell through protection metal pipe 5, the upper end of protection metal pipe 5 is provided with rosette 6, contact rod 4 forms terminals in extending into rosette 6.
nullWherein，It is provided with ceramic insulating tube 7 between described contact rod 4 and protection metal pipe 5，The upper end of protection metal pipe 5 be welded be positioned at rosette there is externally threaded contiguous block 8，Clamp nut 9 it is rotary with on contiguous block 8，Between contact rod 4 and clamp nut 10, there is gap，Thus make to have between contact rod 4 and clamp nut 10 good insulating properties，Specifically it is welded with the compact heap 10 being enclosed within contact rod on contact rod 4，Compact heap 10 is positioned at clamp nut，Sealing gasket 11 it is mounted with between the inner face of compact heap 10 and clamp nut 9，Lower seal pad 12 it is provided with between the upper surface of compact heap 10 and contiguous block 8，The upper end of contact rod 4 is provided with threaded section，It is rotary with clamp nut 13 on described threaded section，It is provided with insulated enclosure circle 14 between described clamp nut 13 and clamp nut 10.
Further, described upper sealing gasket 11 has the insulation sleeve that one section of bore section to clamp nut top extends, and this insulation sleeve extend between clamp nut 10 and contact rod 4；Described lower seal pad 12 has one section of insulation sleeve extended below clamp nut, and this insulation sleeve extend between contiguous block 8 and contact rod 4.
Yet further, described insulating supporting assembly 3 includes gripper shoe 15 and is arranged on heater element and is positioned at the insulating ceramics circle 16 of gripper shoe both sides, the through hole 17 that heater element can be made to pass is had in gripper shoe 15, fixing card 18 it is provided with between gripper shoe 15 and insulating ceramics circle 16, insulating ceramics circle 16 has annular groove, fixing card 18 is the U-shaped card being stuck in annular groove, it is provided with leg on described U-shaped card, the leg of U-shaped card is fixedly mounted in gripper shoe 15, designed by such structure, heater element is made to pass from the through hole of gripper shoe, metal part will not be encountered, the unsettled effect being consequently formed improves fluid and passes through performance, fluid improves the efficiency of heating surface by while through hole.
Claims (8)
1. a direct electric resistor heater, it is characterized in that: include the tubular shell (1) that can be connected to add on hot channel, many heater elements (2) it are placed with in described tubular shell (1), there is in described tubular shell (1) polylith spaced insulating supporting assembly (3), each described heater element (2) supports fixing by insulating supporting component insulation, the exit of described heater element (2) connects contact rod (4), protection metal pipe (5) it is welded with on described tubular shell (1), described contact rod (4) reaches outside tubular shell through protection metal pipe (5), the upper end of described protection metal pipe (5) is provided with rosette (6), described contact rod (4) forms terminals in extending into rosette (6).
2. according to the direct electric resistor heater described in claim 1; it is characterized in that: between described contact rod (4) and protection metal pipe (5), be provided with ceramic insulating tube (7); the upper end of described protection metal pipe (5) be welded be positioned at rosette there is externally threaded contiguous block (8); it is rotary with clamp nut (9) on described contiguous block (8), between described contact rod (4) and clamp nut (10), there is gap.
3. according to the direct electric resistor heater described in claim 1, it is characterized in that: on described contact rod (4), be welded with the compact heap (10) being enclosed within contact rod, described compact heap (10) is positioned at clamp nut, it is mounted with sealing gasket (11) between the inner face of described compact heap (10) and clamp nut (9), between the upper surface of described compact heap (10) and contiguous block (8), is provided with lower seal pad (12).
4. according to the direct electric resistor heater described in Claims 2 or 3, it is characterized in that: the upper end of described contact rod (4) is provided with threaded section, it is rotary with clamp nut (13) on described threaded section, between described clamp nut (13) and clamp nut (10), is provided with insulated enclosure circle (14).
5. according to the direct electric resistor heater described in claim 4, it is characterized in that: described upper sealing gasket (11) has the insulation sleeve that one section of bore section to clamp nut top extends, and this insulation sleeve extend between clamp nut (10) and contact rod (4)；Described lower seal pad (12) has one section of insulation sleeve extended below clamp nut, and this insulation sleeve extend between contiguous block (8) and contact rod (4).
6. according to the direct electric resistor heater described in claim 1 or 5, it is characterized in that: described insulating supporting assembly (3) includes gripper shoe (15) and is arranged on heater element and is positioned at the insulating ceramics circle (16) of gripper shoe both sides, have the through hole (17) that heater element can be made to pass in described gripper shoe (15), between described gripper shoe (15) and insulating ceramics circle (16), be provided with fixing card (18).
7. according to the direct electric resistor heater described in claim 6, it is characterized in that: described insulating ceramics circle (16) has annular groove, described fixing card (18) is the U-shaped card being stuck in annular groove, and described U-shaped card is provided with leg, and the leg of U-shaped card is fixedly mounted in gripper shoe (15).
8. according to the direct electric resistor heater of claim 7, it is characterised in that: described heater element (2) is the many U-shaped resistance wires being arranged in tubular shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309683.8A CN105848318A (en) | 2016-05-11 | 2016-05-11 | Direct resistance type electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610309683.8A CN105848318A (en) | 2016-05-11 | 2016-05-11 | Direct resistance type electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105848318A true CN105848318A (en) | 2016-08-10 |
Family
ID=56591439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610309683.8A Pending CN105848318A (en) | 2016-05-11 | 2016-05-11 | Direct resistance type electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105848318A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2577099A1 (en) * | 1985-02-06 | 1986-08-08 | Kanthal Ab | Electric radiant tube |
| CN202598859U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Internal radiation isothermal electric heater of thermal field |
| CN104066214A (en) * | 2014-06-06 | 2014-09-24 | 镇江东方电热有限公司(中外合资) | Electric heating pipe head multifunctional protecting connector and electric heating pipe head sealing method |
| CN203968418U (en) * | 2014-07-01 | 2014-11-26 | 江苏中热机械设备有限公司 | A kind of electrothermal radiation tube |
| CN104486855A (en) * | 2014-12-10 | 2015-04-01 | 镇江市东方节能设备有限公司 | Electric heating pipe capable of accurately controlling temperature |
| CN205961484U (en) * | 2016-05-11 | 2017-02-15 | 镇江东方电热有限公司(中外合资) | Direct resistance -type electric heater |
-
2016
- 2016-05-11 CN CN201610309683.8A patent/CN105848318A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2577099A1 (en) * | 1985-02-06 | 1986-08-08 | Kanthal Ab | Electric radiant tube |
| CN202598859U (en) * | 2012-05-23 | 2012-12-12 | 华能无锡电热器材有限公司 | Internal radiation isothermal electric heater of thermal field |
| CN104066214A (en) * | 2014-06-06 | 2014-09-24 | 镇江东方电热有限公司(中外合资) | Electric heating pipe head multifunctional protecting connector and electric heating pipe head sealing method |
| CN203968418U (en) * | 2014-07-01 | 2014-11-26 | 江苏中热机械设备有限公司 | A kind of electrothermal radiation tube |
| CN104486855A (en) * | 2014-12-10 | 2015-04-01 | 镇江市东方节能设备有限公司 | Electric heating pipe capable of accurately controlling temperature |
| CN205961484U (en) * | 2016-05-11 | 2017-02-15 | 镇江东方电热有限公司(中外合资) | Direct resistance -type electric heater |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
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| RJ01 | Rejection of invention patent application after publication |