CN204721638U - A kind of PTC electrothermal tube - Google Patents
A kind of PTC electrothermal tube Download PDFInfo
- Publication number
- CN204721638U CN204721638U CN201520433132.3U CN201520433132U CN204721638U CN 204721638 U CN204721638 U CN 204721638U CN 201520433132 U CN201520433132 U CN 201520433132U CN 204721638 U CN204721638 U CN 204721638U
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- ptc
- electrothermal tube
- pottery
- conductive
- stainless steel
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Abstract
The utility model discloses a kind of PTC electrothermal tube, by being provided with aluminium section bar in the gap between every two adjacent PTC ceramic heaters, achieve the two-side radiation of PTC ceramic heater, by adopting insulating heat-conductive pottery as insulating material, adopt polyimide insulative film as second layer insulating material at insulating heat-conductive top ceramic layer simultaneously, achieve double insulation, bondd by heat conductive silica gel, to increase thermal conductivity, by adopting the gap in silicone filler aluminum pipe, make the side insulation of PTC pottery, thus the electric discharge under preventing high pressure between upper/lower electrode, substantially increase the reliability of electrothermal tube.
Description
Technical field
The utility model relates to PTC ceramic heat field, is specially a kind of follow-on heating liquid PTC electrothermal tube.
Background technology
PTC electrothermal tube of the prior art, usual employing PTC pottery is as heater element, PTC pottery is bonded between power-on and power-off pole piece by heat conductive silica gel, electrode slice outside is wrapped up in polyimide insulative paper bag again, fill in the aluminum pipe of bearing shell shape, after consolidation, then be placed in stainless steel tube, and make it with stainless steel inside pipe wall near forming.As the utility model patent " a kind of High-Power PTC thermostatic electric heating tube being applied to heating liquid " that the patent No. is 201420291960.
Although this electrothermal tube have employed PTC pottery and instead of traditional heating wire material, substantially increase insulating reliability, extend the useful life of heater, general instructions for use can be met, but in production and use procedure, also there are some shortcomings, specific as follows:
One, owing to adopting polyimide insulative paper as insulating barrier, in compression and use procedure, the hard granule foreign wearing and tearing be very easily mixed into, or due to electrode sparking burn the reasons such as insulating paper, and cause the damage of insulating paper, cause heater surfaces charged, produce safety problem.
Two, in this patent, with only the single-side heating of PTC pottery, the other heat of PTC pottery is not easy to send, thus the power density of electrothermal tube is on the low side.
Utility model content
The technical problems to be solved in the utility model overcomes PTC electrothermal tube in prior art to be generally single-side heating, and heat is not easy the defect shed, provide a kind of can the PTC electrothermal tube of two-side radiation.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of PTC electrothermal tube, comprise stainless steel tube, in described stainless steel tube, be provided with the PTC ceramic heater of several radial arrangements, in the gap between every two adjacent PTC ceramic heaters, be provided with aluminium section bar, in the gap of aluminium section bar and stainless steel inside pipe wall, be provided with thermal conductive sand.
Further, when described PTC ceramic heater is uniformly distributed in stainless steel tube, when the number of described PTC ceramic heater can be one or more, the shape of described aluminium section bar is fan-shaped or semicircle.
Further, preferably, described insulating heat-conductive pottery is trench structure or slab construction, and preferably, described insulating heat-conductive pottery is aluminium oxide ceramics, other heat-conducting insulation materials.
PTC ceramic heater transfers heat to adjacent fan-shaped aluminium section bar, is delivered on stainless steel tube by heat by the arc surface of fan-shaped aluminium section bar.In order to easy for installation, the diameter of fan-shaped aluminium section bar is less than the internal diameter of stainless steel tube, and leaves certain gap, so that convenient for assembly, in gap, fills up thermal conductive sand.
In order to solve owing to adopting polyimide insulative paper as insulating barrier, in compression and use procedure, the hard granule foreign wearing and tearing be very easily mixed into, or due to electrode sparking burn the reasons such as insulating paper, and cause the damage of insulating paper, cause heater surfaces charged, produce safety problem, the utility model adopts following technical scheme:
The PTC pottery be arranged in aluminum pipe shell is comprised, electrode slice, insulating heat-conductive pottery, polyimide insulative paper at described PTC ceramic heater; Described electrode slice is arranged on described PTC ceramic surface by heatproof silica gel; Described PTC pottery is fixed in insulating heat-conductive pottery by heatproof silica gel, and described polyimide insulative paper is logical is wrapped in described insulating heat-conductive ceramic outer.
Further, described aluminium section bar is provided with ground connection string holes.
Further, described polyimide insulative paper is grooved flanging or circular tube shaped.
Further, the model of described stainless steel tube is 304,316L or 316Ti manages, or other metal material.
Further, in order to improve antiseptic property, stainless steel pipe surface can be provided with anticorrosive paint, described anticorrosive paint is Teflon or ceramic glaze, or other heatproof anticorrosive paint.
The beneficial effects of the utility model:
One, by being provided with aluminium section bar in the gap between every two adjacent PTC ceramic heaters, achieve the two-side radiation of PTC ceramic heater, heat transmits rapidly by the arc surface of aluminium section bar, make the power of PTC pottery must in fully playing,, the quantity of PTC pottery can reduce relatively, and the working temperature of PTC pottery can be lower, thus its power aging is smaller, and useful life obviously extends;
Two, by adopting insulating heat-conductive pottery as insulating material, adopting polyimide insulative film as second layer insulating material at insulating heat-conductive top ceramic layer simultaneously, achieving double insulation, further reinforced insulation performance.Adopt the insulating paper of flanging simultaneously, by the width control system of insulating paper flanging, can realize, to the location of insulating heat-conductive pottery, PTC and electrode slice, even if there are the tiny grains of sand, PTC electrothermal tube also can not being caused charged, ensure that the insulating reliability of electrothermal tube;
Three, between all coupling parts (comprise between PTC and electrode slice, insulating heat-conductive pottery and electrode slice and insulating paper etc.) all adopt heat conductive silica gel bonding, to increase thermal conductivity, by adopting the gap in silicone filler aluminum pipe, make the side insulation of PTC pottery, thus the electric discharge under preventing high pressure between upper/lower electrode, substantially increase the reliability of electrothermal tube.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the PTC ceramic heater in the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
Embodiment
As shown in Figure 1, a kind of PTC electrothermal tube, the PTC ceramic heater 2 of 3 radial arrangements is provided with in stainless steel tube 1,3 PTC ceramic heaters are evenly distributed in stainless steel tube 1, the fan-shaped aluminium section bar 3 for heat conduction is provided with in gap between every two adjacent PTC ceramic heaters 2, thermal conductive sand is provided with in the gap 4 of fan-shaped aluminium section bar 3 and stainless steel tube 1 inwall, insulating heat-conductive pottery is the aluminium oxide ceramics of trench structure, stainless steel tube is 316Ti pipe, and stainless steel pipe surface is provided with anticorrosive paint Teflon.
As shown in Figure 2, PTC ceramic heater 2 comprises the PTC pottery 10 be arranged in aluminum pipe shell 6, electrode slice 9, insulating heat-conductive pottery 7, polyimide insulative paper 8; Described electrode slice 9 is arranged on described PTC pottery 10 surface by heatproof silica gel; Described PTC pottery 10 is fixed in insulating heat-conductive pottery 7 by heatproof silica gel, and it is outside that described polyimide insulative paper 8 is wrapped in described insulating heat-conductive pottery 7, and described polyimide insulative paper is grooved flanging.
Described aluminium section bar 3 is provided with ground connection string holes 5.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (10)
1. a PTC electrothermal tube, comprise stainless steel tube, it is characterized in that, the PTC ceramic heater of several radial arrangements is provided with in described stainless steel tube, be provided with aluminium section bar in gap between every two adjacent PTC ceramic heaters, in the gap of aluminium section bar and stainless steel inside pipe wall, be provided with thermal conductive sand.
2. a kind of PTC electrothermal tube as claimed in claim 1, is characterized in that, described PTC ceramic heater comprises the PTC pottery be arranged in aluminum pipe shell, electrode slice, insulating heat-conductive pottery, polyimide insulative paper; Described electrode slice is arranged on described PTC ceramic surface by heatproof silica gel; Described PTC pottery is fixed in insulating heat-conductive pottery by heatproof silica gel, and described polyimide insulative paper bag is rolled in described insulating heat-conductive ceramic outer.
3. a kind of PTC electrothermal tube as claimed in claim 1 or 2, is characterized in that, when described PTC ceramic heater is uniformly distributed in stainless steel tube, when the number of described PTC ceramic heater is one or more, the shape of described aluminium section bar is semicircle or fan-shaped.
4. a kind of PTC electrothermal tube as claimed in claim 1 or 2, it is characterized in that, described aluminium section bar is provided with ground connection string holes.
5. a kind of PTC electrothermal tube as claimed in claim 2, is characterized in that, described insulating heat-conductive pottery is trench structure or slab construction.
6. a kind of PTC electrothermal tube as claimed in claim 2, is characterized in that, described insulating heat-conductive pottery is aluminium oxide ceramics.
7. a kind of PTC electrothermal tube as claimed in claim 2, is characterized in that, described polyimide insulative paper is grooved flanging or circular tube shaped.
8. a kind of PTC electrothermal tube as claimed in claim 1, is characterized in that, the model of described stainless steel tube is 304,316L or 316Ti manages.
9. a kind of PTC electrothermal tube as claimed in claim 1, it is characterized in that, described stainless steel pipe surface is provided with anticorrosive paint.
10. a kind of PTC electrothermal tube as claimed in claim 9, is characterized in that, described anticorrosive paint is Teflon or ceramic glaze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520433132.3U CN204721638U (en) | 2015-06-19 | 2015-06-19 | A kind of PTC electrothermal tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520433132.3U CN204721638U (en) | 2015-06-19 | 2015-06-19 | A kind of PTC electrothermal tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204721638U true CN204721638U (en) | 2015-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520433132.3U Expired - Fee Related CN204721638U (en) | 2015-06-19 | 2015-06-19 | A kind of PTC electrothermal tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204721638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813463A (en) * | 2019-03-20 | 2019-05-28 | 桂林市思奇通信设备有限公司 | Contact temperature-measuring device and its usage mode based on microwave heating equipment setting |
-
2015
- 2015-06-19 CN CN201520433132.3U patent/CN204721638U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813463A (en) * | 2019-03-20 | 2019-05-28 | 桂林市思奇通信设备有限公司 | Contact temperature-measuring device and its usage mode based on microwave heating equipment setting |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20210619 |