CN204014119U - Electric heating radiant tube - Google Patents
Electric heating radiant tube Download PDFInfo
- Publication number
- CN204014119U CN204014119U CN201420399216.5U CN201420399216U CN204014119U CN 204014119 U CN204014119 U CN 204014119U CN 201420399216 U CN201420399216 U CN 201420399216U CN 204014119 U CN204014119 U CN 204014119U
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- CN
- China
- Prior art keywords
- radiant tube
- tube body
- bend pipe
- upper straight
- metal pipe
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of electric heating radiant tube, comprises radiant tube body, heating metal pipe, eddy current coil, inverter circuit and rectification circuit; Radiant tube body comprises bend pipe, upper straight tube and lower straighttube; One end of bend pipe is connected with upper straight tube, and the other end is connected with lower straighttube; Upper straight tube and lower straighttube and bend pipe from one end be all provided with seal cover; Heating metal pipe is along the axial distribution of radiant tube body, and its two ends fix with the seal cover at radiant tube body two ends respectively; Eddy current coil is wrapped in the surface of heating metal pipe twist, and connects successively inverter circuit and rectification circuit; Inverter circuit and rectification circuit are all positioned at the outside of radiant tube body.The utility model does not use burning gases to heat, non-exhaust emission, very environmental protection; Adopt eddy current coil and heating metal pipe to heat, warm-up time is short, energy consumption is low, the heat efficiency is high; The product that is applicable to temperature accuracy to have relatively high expectations.
Description
Technical field
The utility model belongs to radiant tube field, is specifically related to a kind of electric heating generation heat, non-exhaust emission, electric heating radiant tube of energy-conserving and environment-protective of using.
Background technology
Radiant tube is a kind of heat that utilizes combustion inner pipe gas combustion to produce, and taking thermal radiation as principal mode, heat is delivered to the heater of heating object by the tube-surface being heated.Its combustion atmosphere does not contact with heating object with product, and heat treatment is to carry out under protective atmosphere completely, in the production process that therefore radiant tube is applicable to product quality to have relatively high expectations.
But, in existing radiant tube, be all a straight tube for the pipeline of the burning gases that burn, if the gas pressure of burning gases can not get balance, must cause the burning gases can not uniform filling in radiant tube, therefore the burning gases in radiant tube can not evenly burn, and cause existing in radiant tube irregular temperature difference, hot-fluid is unbalanced, further cause managing outer heat radiation inhomogeneous, heating object can not thermally equivalent, affects product quality.
And can produce more waste gas later in burning gases burning, as without just processing externally discharge, can impact environment; And in the course of processing of bulk article, need to consume a large amount of burning gases, long-living a large amount of waste gas, needs higher processing cost when therefore waste gas processing.
Therefore, develop a kind of discharge that there is no waste gas in heating process, the radiant tube of energy-conserving and environment-protective is those skilled in the art's urgent need to solve the problems.
Summary of the invention
For addressing the above problem, the utility model discloses a kind of electric heating generation heat, non-exhaust emission, electric heating radiant tube of energy-conserving and environment-protective of using.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of electric heating radiant tube, comprises radiant tube body, heating metal pipe, eddy current coil, inverter circuit and rectification circuit; Radiant tube body comprises bend pipe, upper straight tube and lower straighttube; One end of bend pipe is connected with upper straight tube, and the other end is connected with lower straighttube; Upper straight tube and lower straighttube and bend pipe from one end be all provided with seal cover; Heating metal pipe is along the axial distribution of radiant tube body, and its two ends fix with the seal cover at radiant tube body two ends respectively; Eddy current coil is wrapped in the surface of heating metal pipe twist, and connects successively inverter circuit and rectification circuit; Inverter circuit and rectification circuit are all positioned at the outside of radiant tube body.
The utility model provides a kind of electric heating radiant tube, is made up of radiant tube body, heating metal pipe, eddy current coil, inverter circuit and rectification circuit.
Radiant tube body is made up of bend pipe, upper straight tube and lower straighttube; Radiant tube body be axially arranged with heating metal pipe, install or when dismounting, first the bend pipe being connected with upper straight tube and lower straighttube removed, then put into or take out after heating metal pipe, then bend pipe is installed, this setting is convenient to heating metal pipe to carry out dismounting; And upper straight tube and lower straighttube and bend pipe from one end be all provided with seal cover, can keep the air-tightness of radiant tube, prevent that the heat in radiant tube from being gushed by the opening part of upper straight tube and lower straighttube, cause unnecessary heat loss.
In the utility model, the surface of heating metal pipe is wound with spiral eddy current coil, and eddy current coil connects inverter circuit and rectification circuit successively; First convert alternating current to direct current by rectification circuit, convert direct current to high-frequency alternating current through inverter circuit again, high-frequency current produces the magnetic field changing at a high speed through eddy current coil, in the time that the magnetic line of force in magnetic field passes through the heating metal pipe of magnetic conduction, can produce countless little eddy current, make heating metal pipe heating, produce a large amount of heats, further make the temperature rise of radiant tube body, heating object is heated.The utility model uses eddy current coil and heating metal pipe to heat, and not only can greatly shorten warm-up time, has reduced in a large number energy consumption, can also increase substantially the heat efficiency.
As preferably, bend pipe is semi-annular shape, and its two ends are all evenly distributed with 4 La Erka; One end that upper straight tube and lower straighttube are connected with bend pipe is all provided with a circle groove; La Erka matches with groove.
Bend pipe in the utility model is semi-annular shape, makes two ends are connected with it upper straight tube and lower straighttube horizontal positioned, makes the utility model more stable.And the utility model is all evenly provided with 4 La Erka at the two ends of bend pipe, the upper straight tube and the lower straighttube that are connected at two ends are all provided with a circle groove with it, make two ends form female joint with the bend pipe of La Erka, and be with reeded upper straight tube and lower straighttube to form male joint, both form Earrings type snap joint jointly, utilize eccentric center principle that the groove of male joint can just be blocked by the La Erka of female joint, realize self-locking; Bend pipe and upper straight tube and lower straighttube can be combined closely, and do not need use instrument just can realize the assembly and disassembly of bend pipe and upper straight tube and lower straighttube.
As preferably, the inside of radiant tube body is also provided with temperature inductor; Temperature inductor connects respectively inverter circuit and rectification circuit.
The utility model is provided with temperature inductor in the inside of radiant tube body, for the temperature of induced radiation pipe body inside, goes for some heating for the higher product of temperature accuracy; And temperature inductor is connected with inverter circuit and rectification circuit respectively, in the time that the temperature in radiant tube body arrives predetermined temperature, temperature inductor control inverter circuit and rectification circuit disconnect, and keep temperature; In the time that temperature is lower, temperature inductor control inverter circuit and rectification circuit reconnect, and re-start heating.
As preferably, radiant tube body is earthenware.
The utility model selects earthenware as radiant tube body, not only heat-and corrosion-resistant, and there is outstanding thermal conductivity, the heat of being convenient in pipe outwards carries out radiation.
As preferably, radiant tube body is U-shaped, and thickness is 2-4mm.
Radiant tube body in the utility model is U-shaped, is convenient to heating metal pipe to carry out dismounting; And the thickness of tube wall is made as to 2-4mm, by tube wall thin-walled property, more easily absorbs thermal stress, more easily the heat producing in pipe is externally carried out to radiation.
The utility model is compared with existing radiant tube, and beneficial effect is: (1) is not used burning gases to heat, non-exhaust emission, very environmental protection; (2) adopt eddy current coil and heating metal pipe to heat, warm-up time is short, energy consumption is low, the heat efficiency is high; (3) be applicable to product that temperature accuracy is had relatively high expectations.
Brief description of the drawings
Fig. 1, structural representation of the present utility model;
The structural representation of heating metal pipe in Fig. 2, the utility model.
Reference numerals list: heating metal pipe 1, eddy current coil 2, inverter circuit 3, rectification circuit 4, bend pipe 5, upper straight tube 6, lower straighttube 7, seal cover 8, draw ear card 9, temperature inductor 10.
Embodiment
Technical scheme the utility model being provided below with reference to specific embodiment is elaborated, and should understand following embodiment and only be not used in restriction scope of the present utility model for the utility model is described.
Be illustrated in figure 1 structural representation of the present utility model, the utility model is a kind of electric heating radiant tube, comprises radiant tube body, heating metal pipe 1, eddy current coil 2, inverter circuit 3 and rectification circuit 4.
Radiant tube body Ceramics pipe, is U-shaped, and thickness is 4mm; Comprise bend pipe 5, upper straight tube 6 and lower straighttube 7; One end of bend pipe 5 is connected with upper straight tube 6, and the other end is connected with lower straighttube 7; Bend pipe 5 is semi-annular shape, and its two ends are all evenly distributed with 4 and draw ear card 9; One end that upper straight tube 6 and lower straighttube 7 are connected with bend pipe 5 is all provided with a circle groove; La Erka 9 matches with groove; Upper straight tube 6 and lower straighttube 7 and bend pipe 5 from one end be all provided with seal cover 8; The inside of radiant tube body is also provided with temperature inductor 10.
Heating metal pipe 1 is along the axial distribution of radiant tube body, and its two ends fix with the seal cover 8 at radiant tube body two ends respectively; Eddy current coil 2 is wrapped in the surface of heating metal pipe 1 twist, and connects successively inverter circuit 3 and rectification circuit 4.
Inverter circuit 3 and rectification circuit 4 are all positioned at the outside of radiant tube body, and the temperature inductor 10 of radiant tube body inside connects respectively inverter circuit 3 and rectification circuit 4.
Finally it should be noted that, above embodiment is the non-limiting technical scheme in order to the technical solution of the utility model to be described only, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (5)
1. an electric heating radiant tube, is characterized in that: comprise radiant tube body, heating metal pipe (1), eddy current coil (2), inverter circuit (3) and rectification circuit (4); Described radiant tube body comprises bend pipe (5), upper straight tube (6) and lower straighttube (7); One end of described bend pipe (5) is connected with upper straight tube (6), and the other end is connected with lower straighttube (7); Described upper straight tube (6) and lower straighttube (7) and bend pipe (5) from one end be all provided with seal cover (8); Described heating metal pipe (1) is along the axial distribution of radiant tube body, and its two ends fix with the seal cover (8) at radiant tube body two ends respectively; Described eddy current coil (2) is wrapped in the surface of heating metal pipe (1) twist, and connects successively inverter circuit (3) and rectification circuit (4); Described inverter circuit (3) and rectification circuit (4) are all positioned at the outside of radiant tube body.
2. a kind of electric heating radiant tube according to claim 1, is characterized in that: described bend pipe (5) is semi-annular shape, its two ends are all evenly distributed with 4 La Erka (9); One end that described upper straight tube (6) and lower straighttube (7) are connected with bend pipe (5) is all provided with a circle groove; Described La Erka (9) matches with groove.
3. a kind of electric heating radiant tube according to claim 1, is characterized in that: the inside of described radiant tube body is also provided with temperature inductor (10); Described temperature inductor (10) connects respectively inverter circuit (3) and rectification circuit (4).
4. a kind of electric heating radiant tube according to claim 1, is characterized in that: described radiant tube body is earthenware.
5. a kind of electric heating radiant tube according to claim 1, it is characterized in that: described radiant tube body is U-shaped, and thickness is 2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399216.5U CN204014119U (en) | 2014-07-20 | 2014-07-20 | Electric heating radiant tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399216.5U CN204014119U (en) | 2014-07-20 | 2014-07-20 | Electric heating radiant tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204014119U true CN204014119U (en) | 2014-12-10 |
Family
ID=52054054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420399216.5U Expired - Fee Related CN204014119U (en) | 2014-07-20 | 2014-07-20 | Electric heating radiant tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204014119U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2718962C2 (en) * | 2018-05-25 | 2020-04-15 | Андрей Леонидович Бехтер | Tubular electric heater |
| US11770878B2 (en) * | 2015-12-29 | 2023-09-26 | Carlo Rupnik | Tubular concentrator for concentric radiation of electromagnetic waves |
-
2014
- 2014-07-20 CN CN201420399216.5U patent/CN204014119U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11770878B2 (en) * | 2015-12-29 | 2023-09-26 | Carlo Rupnik | Tubular concentrator for concentric radiation of electromagnetic waves |
| RU2718962C2 (en) * | 2018-05-25 | 2020-04-15 | Андрей Леонидович Бехтер | Tubular electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |