CN204634069U - Damp proof insulation electric heater - Google Patents
Damp proof insulation electric heater Download PDFInfo
- Publication number
- CN204634069U CN204634069U CN201520290780.8U CN201520290780U CN204634069U CN 204634069 U CN204634069 U CN 204634069U CN 201520290780 U CN201520290780 U CN 201520290780U CN 204634069 U CN204634069 U CN 204634069U
- Authority
- CN
- China
- Prior art keywords
- terminal box
- electrothermal tube
- transition terminal
- electric heater
- pipe
- 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.)
- Active
Links
Abstract
The utility model relates to industrial electric heating technical field, is especially suitable for the damp proof insulation electric heater of dampness or maritime environment occasion.Comprise electrothermal tube, heating wire is provided with in electrothermal tube, described heating wire is connected with the rod that draws stretching out the mouth of pipe, the described electrothermal tube mouth of pipe is provided with adpting flange, described adpting flange is provided with transition terminal box, described transition terminal box body and adpting flange are tightly connected, the described electrothermal tube mouth of pipe is positioned at transition terminal box, described transition terminal box is provided with electrode, described electrode by transition lead wire with draw rod be connected, described transition terminal box is also provided with exhaust outlet, in described exhaust outlet, is provided with the first sealing plug.The utility model is by arranging the transition terminal box of sealing, magnesium oxide in electrothermal tube and extraneous air are thoroughly completely cut off, in the fabrication process by the baking to electric heater, eliminate the air remained in magnesium oxide, further increase the insulation property of electric heater.
Description
Technical field
The utility model relates to industrial electric heating technical field, is especially suitable for the damp proof insulation electric heater of dampness or maritime environment occasion.
Background technology
The most frequently used in existing industrial electric heating device is electrothermal tube structure form, the insulating material used in electrothermal tube is generally magnesia powder, magnesium oxide is a kind of insulating properties and the extraordinary material of thermal conductivity, but its maximum shortcoming is easy moisture absorption, moisture absorption approach has two kinds, and one sucks moisture from electrothermal tube extraneous air; Another kind be heater in heating process, air heat in electrothermal tube in magnesium oxide gap expands, and progressively assembles to the mouth of pipe, and the moisture simultaneously in these air is also assembled to the mouth of pipe; The decline that both of these case all can cause heating tube to insulate; Traditional mode adopts organic sealings such as silicone oil, silica gel or epoxy at the mouth of pipe of electrothermal tube, but expanding with heat and contract with cold due to these encapsulants, organic material easily ftractures, and cannot avoid magnesia powder moisture absorption from extraneous air; On the other hand due to the temperature limiting of organic material, be generally no more than 200 degree of application scenarios, otherwise high temperature makes organic material easily tie carbon, carbon is again conductive materials, can cause again the decline of insulating.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of damp proof insulation electric heater, improves the damp proof insulation performance of electric heating tube.
In order to solve the problems of the technologies described above, the utility model comprises electrothermal tube, heating wire is provided with in electrothermal tube, described heating wire is connected with the rod that draws stretching out the mouth of pipe, the described electrothermal tube mouth of pipe is provided with adpting flange, described adpting flange is provided with transition terminal box, described transition terminal box body and adpting flange are tightly connected, the described electrothermal tube mouth of pipe is positioned at transition terminal box, described transition terminal box is provided with electrode, described electrode by transition lead wire with draw rod be connected, described transition terminal box is also provided with exhaust outlet, the first sealing plug is provided with in described exhaust outlet.
Further, described transition terminal box is also provided with import and export of nitrogen, in described nitrogen inlet, is provided with the second sealing plug, in described transition terminal box, be filled with nitrogen.
The utility model is by arranging the transition terminal box of sealing, magnesium oxide in electrothermal tube and extraneous air are thoroughly completely cut off, in the fabrication process by the baking to electric heater, eliminate the air remained in magnesium oxide, further increase the insulation property of electric heater.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment cited by the utility model; just understand the utility model for helping; should not be construed as the restriction to the utility model protection range; for those skilled in the art; under the prerequisite not departing from the utility model thought; can also improve the utility model and modify, these improve and modification also falls in the scope of the utility model claim protection.
As shown in Figure 1, the utility model comprises electrothermal tube 1, and electrothermal tube 1 li is provided with heating wire 2, and described heating wire 2 is connected with the rod 3 that draws stretching out the mouth of pipe.Due to the sealing problem of the mouth of pipe, traditional electric heater damp proof insulation performance is not good.
For this reason, the utility model arranges an adpting flange 9 at electrothermal tube 1 mouth of pipe, and this adpting flange 9 is tabular, and described electrothermal tube 1 through the plate body of this adpting flange, and is tightly connected between electrothermal tube 1 tube wall and adpting flange.Described adpting flange 9 is provided with transition terminal box 4, and described transition terminal box 4 box body and adpting flange 9 are tightly connected by welding manner, and described electrothermal tube 1 mouth of pipe is positioned at transition terminal box 4.Described transition terminal box 4 is provided with electrode 5, as embodiment of the present utility model, the EG electrode of the U.S. conax that this electrode adopts, the former electrical connection being mainly used in the occasion such as vacuum furnace, transformer of this electrode, this electrode maximum operating voltage reaches 2000V, most high-temperature resistant: 871 degree; Maximum current reaches 400A; Maximum pressurized: 551bar.Described electrode 5 one end is positioned at transition terminal box 4, and by transition lead wire 6 with draw rod and 3 to be connected, the other end of described electrode 5 is positioned at outside transition terminal box 4, and is positioned at electrode connection box 10.In order to ensure the sealing of transition terminal box 4, between described electrode 5 and transition terminal box 4, be provided with sealing device, or be processed into an overall structure.
Described transition terminal box 4 is also provided with exhaust outlet 7, in described exhaust outlet 7, is provided with the first sealing plug.In order to be conducive to the discharge of wet gas, transition terminal box 4 is also provided with nitrogen inlet, is provided with the second sealing plug in described nitrogen inlet 8, allows nitrogen take away wet gas on the one hand, prevents the oxidation of metalwork on the other hand.
Claims (2)
1. damp proof insulation electric heater, comprise electrothermal tube (1), electrothermal tube (1) is inner is provided with heating wire (2), described heating wire (2) is connected with the rod (3) that draws stretching out the mouth of pipe, it is characterized in that, described electrothermal tube (1) mouth of pipe is provided with adpting flange (9), described adpting flange (9) is provided with transition terminal box (4), described transition terminal box (4) box body and adpting flange (9) are tightly connected, described electrothermal tube (1) mouth of pipe is positioned at transition terminal box (4), described transition terminal box (4) is provided with electrode (5), described electrode (5) one end by transition lead wire (6) with draw rod (3) and be connected, described transition terminal box (4) is also provided with exhaust outlet (7), described exhaust outlet is provided with the first sealing plug in (7).
2. damp proof insulation electric heater according to claim 1, is characterized in that, described transition terminal box is also provided with import and export of nitrogen (8), is provided with the second sealing plug in described nitrogen inlet, is filled with nitrogen in described transition terminal box (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290780.8U CN204634069U (en) | 2015-05-07 | 2015-05-07 | Damp proof insulation electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290780.8U CN204634069U (en) | 2015-05-07 | 2015-05-07 | Damp proof insulation electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204634069U true CN204634069U (en) | 2015-09-09 |
Family
ID=54053046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520290780.8U Active CN204634069U (en) | 2015-05-07 | 2015-05-07 | Damp proof insulation electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204634069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104812110A (en) * | 2015-05-07 | 2015-07-29 | 华能无锡电热器材有限公司 | Moistureproof insulating electric heater and manufacturing method thereof |
-
2015
- 2015-05-07 CN CN201520290780.8U patent/CN204634069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104812110A (en) * | 2015-05-07 | 2015-07-29 | 华能无锡电热器材有限公司 | Moistureproof insulating electric heater and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104812110A (en) | Moistureproof insulating electric heater and manufacturing method thereof | |
| CN204634069U (en) | Damp proof insulation electric heater | |
| CN205645666U (en) | Novel embedded pole vacuum circuit breaker | |
| CN204333507U (en) | A kind of composite silicone rubber isolated bus terminals | |
| CN203378065U (en) | Electric heating panel of buffet furnace | |
| CN209184830U (en) | High voltage appearance heating element ferrule structure | |
| CN203279223U (en) | Tubular heat transfer element for air | |
| CN206905258U (en) | Boundling short-circuit type electric heater | |
| CN208241911U (en) | A kind of sheathed heater cold end structure | |
| CN203352823U (en) | Waterproof insulating heating unit | |
| CN202738144U (en) | Anti-leakage type radiation electrothermal tube | |
| CN204795639U (en) | Energy -conserving explosion -proof electric heater | |
| CN205482115U (en) | Vacuum drying oven heater and vacuum drying oven | |
| CN203423814U (en) | Heating apparatus | |
| CN203554713U (en) | Sleeve pipe structure of electrothermal film outer spray pipe | |
| CN203464719U (en) | Flange for medium frequency induction sintering furnace | |
| CN206022006U (en) | One kind seals adjustable cement resistor | |
| CN205207036U (en) | Internal -combustion engine heating device | |
| CN204242723U (en) | A kind of high-frequency isolation transformer | |
| CN205305145U (en) | High energy efficiency high shield ground electric heating cable | |
| CN103759096A (en) | Vacuum heat-insulated pipe | |
| CN103900380A (en) | Thermal cycle device for sintering soft magnetic ferrite cores | |
| CN203645841U (en) | Novel heating tube | |
| CN211695841U (en) | Binding post of atmosphere furnace with sealing structure and atmosphere furnace | |
| CN202949581U (en) | High-efficiency electric ion tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |