CN212696230U - PTC electric heating pipe - Google Patents
PTC electric heating pipe Download PDFInfo
- Publication number
- CN212696230U CN212696230U CN202021765905.5U CN202021765905U CN212696230U CN 212696230 U CN212696230 U CN 212696230U CN 202021765905 U CN202021765905 U CN 202021765905U CN 212696230 U CN212696230 U CN 212696230U
- Authority
- CN
- China
- Prior art keywords
- pipe
- electric heating
- tube
- ptc electric
- waste heat
- 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.)
- Expired - Fee Related
Links
- 238000005485 electric heating Methods 0.000 title claims abstract description 29
- 239000002918 waste heat Substances 0.000 claims abstract description 14
- 238000011084 recovery Methods 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 18
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 4
- 238000002788 crimping Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a PTC electric heating tube, which comprises an inner tube, a PTC electric heating sheet, an outer tube and a waste heat recovery tube; the inner pipe is a copper pipe, three axial wire grooves are formed in the outer side of the pipe wall, and a plurality of grooves for placing PTC electric heating sheets are formed in the two sides of each wire groove; the outer pipe is an aluminum pipe, is in interference fit with the inner pipe and is welded or sealed and connected at two ends; the outer side of the outer pipe is also sleeved or wound with a waste heat recovery pipe. The utility model discloses in the structure, the inner tube adopts the copper pipe outer tube to adopt the aluminum pipe, has both guaranteed holistic intensity, and the effectual electrochemical corrosion who prevents the inner tube has again improved life. This structure can directly place the electrical heating piece of fritter in the recess, and need not wrap up in advance the back crimping, has improved assembly efficiency, has reduced the fault rate.
Description
Technical Field
The utility model belongs to the technical field of the heating pipe, concretely relates to PTC electric heating pipe.
Background
Along with the progress and innovation of science and technology, the PTC heating element has the advantages of small thermal resistance, high heat exchange efficiency, automatic constant temperature, power saving and the like, is particularly outstanding in safety performance, and cannot generate the phenomenon of 'red' on the surface of other electric heating tube heaters under any application condition, so that potential safety hazards such as scalding and fire disasters are caused, and the PTC heating element is widely applied to the fields of household heating and industrial constant temperature heating.
PTC heating pipes in the current market are mostly formed by aluminum profile extrusion, and the internal aluminum profile is in long-term contact with water in the pipes, so that electrochemical corrosion is easily generated, and the service life and the safety are influenced. Meanwhile, the low-power heating pipe is mostly polygonal, although the outer surface of part of the heating pipe is coated, the heat efficiency is still affected, and the waste heat recovery effect is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a PTC electric heating pipe to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: a PTC electric heating tube is characterized in that: comprises an inner tube, a PTC electric heating sheet, an outer tube and a waste heat recovery tube; the inner pipe is a copper pipe, three axial wire grooves are formed in the outer side of the pipe wall, and a plurality of grooves for placing PTC electric heating sheets are formed in the two sides of each wire groove; the outer pipe is an aluminum pipe, is in interference fit with the inner pipe and is welded or sealed and connected at two ends; the outer side of the outer pipe is also sleeved or wound with a waste heat recovery pipe.
Further: the PTC electric heating plate is arc-shaped and is clamped in the groove, and the lower side of the PTC electric heating plate is matched with the bottom of the groove, and the upper side of the PTC electric heating plate is matched with the outer tube.
The utility model has the advantages that: the utility model discloses in the structure, the inner tube adopts the copper pipe outer tube to adopt the aluminum pipe, has both guaranteed holistic intensity, and the effectual electrochemical corrosion who prevents the inner tube has again improved life. This structure can directly place the electrical heating piece of fritter in the recess, and need not wrap up in advance the back crimping, has improved assembly efficiency, has reduced the fault rate.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the layered and partially cut-away structure of the present invention;
fig. 3 is a schematic top view of the inner tube and the fitting portion of the present invention.
The sequence numbers in the figures illustrate: 1 is an inner tube; 2 is a PTC electric heating sheet; 3 is an outer tube; 4 is a waste heat recovery pipe; 5 is a wire groove; 6 is a groove; 7 is a lead; and 8 is a connecting head.
Detailed Description
As shown in fig. 1-3, a PTC electric heating tube of the present invention comprises an inner tube 1, a PTC electric heating plate 2, an outer tube 3 and a waste heat recovery tube 4; the inner pipe is a copper pipe, the inner wall of the copper pipe is round, the surface is smooth, the resistance of water flow can be effectively reduced, and the stability of electrochemistry can be greatly improved; three axial wire grooves 5 are arranged on the outer side of the pipe wall, a plurality of grooves 6 for placing PTC electric heating sheets 5 are arranged on two sides of each wire groove, the wire grooves and the grooves are distributed in a tree shape, the PTC electric heating sheets are clamped in the grooves in an insulating way, and wires 7 of the PTC electric heating sheets are arranged in the wire grooves and extend out of the heating pipe to be connected with an external power supply or a controller; the outer pipe is an aluminum pipe, is in interference fit with the inner pipe, is connected in a splicing mode after being heated, and is welded and sealed at two ends or sealed in a resin packaging mode, such as curing and sealing through resin and the like; the outer side of the outer pipe is also sleeved or wound with a waste heat recovery pipe, the cross section of the waste heat recovery pipe is rectangular or oval, and the whole waste heat recovery pipe is spirally arranged on the outer side of the heating pipe.
Preferably: the upper and lower (along inner tube radial direction) both sides of PTC electric heating piece are convex, through controlling (along inner tube axial direction) both sides joint in the recess, and concrete joint can direct joint or realize through modes such as corresponding draw-in groove, also can bond in the recess through heat-resisting resin, and the purpose makes it can not drop at outer pipe grafting in-process. The lower side of the heat pipe is in the same shape and tightly attached to the bottom of the groove, and the upper side of the heat pipe is in the same shape and tightly attached to the inner wall of the outer pipe, so that good heat conduction is realized.
Preferably; one end of the inner pipe is integrally provided with a connector 8, and the outside of the connector is provided with threads.
The utility model discloses the working process of structure as follows: circulating water passes through the copper pipe, the electric heating sheet is electrified for heating, heat is conducted to the circulating water through the copper inner pipe and is heated, the conduction effect is good, and waste is little; waste heat generated by the heating sheet is dissipated outwards from the aluminum pipe, and is recycled after water in the waste heat recovery pipe outside the aluminum pipe is recovered, so that the overall heat utilization rate is high.
The utility model discloses in the structure, the inner tube adopts the copper pipe, and the outer tube adopts the aluminum pipe, has both guaranteed holistic intensity, the effectual electrochemical corrosion who prevents the inner tube again has improved life. This structure can directly place the electrical heating piece of fritter in the recess, and need not arrange into the PTC electrical heating piece of a plurality of fritters in advance and carry out the crimping again of wrapping up after the strip, has reduced the processing link, has improved assembly efficiency, has reduced the fault rate, and the individual heating piece is electrically conductive through solitary wire, and the individual damage is very little to holistic heating effect influence.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (2)
1. A PTC electric heating tube is characterized in that: comprises an inner tube, a PTC electric heating sheet, an outer tube and a waste heat recovery tube; the inner pipe is a copper pipe, three axial wire grooves are formed in the outer side of the pipe wall, and a plurality of grooves for placing PTC electric heating sheets are formed in the two sides of each wire groove; the outer pipe is an aluminum pipe, is in interference fit with the inner pipe and is welded or sealed and connected at two ends; the outer side of the outer pipe is also sleeved or wound with a waste heat recovery pipe.
2. A PTC electric-heating tube according to claim 1, wherein: the PTC electric heating plate is arc-shaped and is clamped in the groove, the lower side of the PTC electric heating plate is matched with the bottom of the groove, and the upper side of the PTC electric heating plate is matched with the inner wall of the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021765905.5U CN212696230U (en) | 2020-08-21 | 2020-08-21 | PTC electric heating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021765905.5U CN212696230U (en) | 2020-08-21 | 2020-08-21 | PTC electric heating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212696230U true CN212696230U (en) | 2021-03-12 |
Family
ID=74902647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021765905.5U Expired - Fee Related CN212696230U (en) | 2020-08-21 | 2020-08-21 | PTC electric heating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212696230U (en) |
-
2020
- 2020-08-21 CN CN202021765905.5U patent/CN212696230U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210312 |