CN212205036U - Electric heater protective housing - Google Patents
Electric heater protective housing Download PDFInfo
- Publication number
- CN212205036U CN212205036U CN202020928510.6U CN202020928510U CN212205036U CN 212205036 U CN212205036 U CN 212205036U CN 202020928510 U CN202020928510 U CN 202020928510U CN 212205036 U CN212205036 U CN 212205036U
- Authority
- CN
- China
- Prior art keywords
- helical blade
- casing
- heater
- heating pipe
- electric heating
- 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
- 230000001681 protective effect Effects 0.000 title claims description 4
- 238000005485 electric heating Methods 0.000 claims abstract description 22
- 238000004321 preservation Methods 0.000 claims abstract description 17
- 239000011490 mineral wool Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 208000002925 dental caries Diseases 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 description 4
- 239000010425 asbestos Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The utility model discloses an electric heater protects casing, including heater casing, heat preservation and electric heating pipe, the inside of heater casing is equipped with helical blade, electric heating pipe runs through helical blade to electric heating pipe's the outside has cup jointed and has inlayed the sleeve of locating helical blade inside, helical blade passes through fixed part and heater casing fixed connection. The utility model discloses in, the inside of heater casing has set up helical blade, electric heating pipe runs through helical blade, when the medium flows, the medium receives helical blade block its velocity of flow slow down, can contact electric heating pipe for a long time, thereby absorb more heats, thereby improve the homogeneity and the efficiency of medium heating, helical blade's the outside is fixed on the inner wall of heat preservation simultaneously, when the medium inflation is exerted pressure to the casing, through helical blade's the effect of pulling, make the casing be difficult for producing and warp, improve the structural strength of casing.
Description
Technical Field
The utility model relates to an electric heater technical field especially relates to an electric heater protects casing.
Background
An electric heater is an electric heating device. The device is used for heating, preserving heat and heating flowing liquid and gaseous media. When the heating medium passes through the heating cavity of the electric heater under the action of pressure, the fluid thermodynamic principle is adopted to uniformly take away huge heat generated in the working process of the electric heating element, so that the temperature of the heated medium meets the process requirements of users.
When the electric heater heats a medium, the medium is heated and expanded, the heater shell can bear larger pressure, the conventional heater shell is not provided with a pressure-resistant structure, and the shell and the heat-insulating layer are easy to break and damage when the pressure of the medium is overlarge, so that the heater protection shell is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problems, the electric heater protection shell is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an electric heater protects casing, includes heater casing, heat preservation and electric heating pipe, the inside of heater casing is equipped with helical blade, electric heating pipe runs through helical blade to electric heating pipe's the outside has been cup jointed and has been inlayed the sleeve of locating helical blade inside, helical blade passes through fixed part and heater casing fixed connection, the inside of heat preservation has a plurality of cavitys.
As a further description of the above technical solution:
the spiral end surface of the spiral blade in the radial direction is attached to the inner surface wall of the heater shell.
As a further description of the above technical solution:
the cavities are distributed in the heat-insulating layer in an equal-angle annular mode and are of arc-shaped structures.
As a further description of the above technical solution:
the fixing part comprises two clamping blocks connected to the heat-insulating layer through bolts, the two clamping blocks are located on two sides of the blades of the spiral blades respectively, anti-skid cushion blocks attached to the blades are arranged on the clamping blocks, and fastening bolts penetrating through the clamping blocks are connected to the inner threads of the clamping blocks.
As a further description of the above technical solution:
the fixed parts are at least two and are distributed at equal intervals along the axial direction of the helical blade.
As a further description of the above technical solution:
the spiral blade is made of any one of stainless steel, carbon steel and aluminum alloy, and the thickness of the spiral blade is 0.8-1.2 mm.
As a further description of the above technical solution:
the sleeve is made of any one of rock wool, asbestos and glass fiber.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, the inside of heater casing has set up helical blade, electric heating pipe runs through helical blade, when the medium flows, the medium receives helical blade block its velocity of flow slow down, can contact electric heating pipe for a long time, thereby absorb more heats, thereby improve the homogeneity and the efficiency of medium heating, helical blade's the outside is fixed on the inner wall of heat preservation simultaneously, when the medium inflation is exerted pressure to the casing, through helical blade's the effect of pulling, make the casing be difficult for producing and warp, improve the structural strength of casing.
2. The utility model discloses in, the inside of heat preservation has set up the arc cavity that a plurality of rings shape distribute, when medium inflation extrusion heat preservation, absorbs the extrusion through the deformation of cavity to reduce the extrusion to the casing.
Drawings
Fig. 1 shows a schematic diagram of an internal structure of a heater housing provided according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural view of an end face of a heater housing provided according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a fixing portion according to an embodiment of the present invention.
Illustration of the drawings:
1. a heater housing; 2. a heat-insulating layer; 3. an electric heating tube; 4. a helical blade; 5. a sleeve; 6. a cavity; 7. a clamping block; 8. an anti-skid cushion block; 9. and fastening the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides an electric heater protects casing, including heater casing 1, heat preservation 2 and electric heating pipe 3, the inside of heater casing 1 is equipped with helical blade 4, electric heating pipe 3 runs through helical blade 4, and electric heating pipe 3's the outside has cup jointed and has inlayed the sleeve 5 of locating helical blade 4 inside, helical blade 4 passes through fixed part and heater casing 1 fixed connection, the inside of heat preservation 2 has a plurality of cavitys 6, the medium is heated the inflation and is exerted pressure to heat preservation 2, shrink absorption pressure through cavity 6, reduce the extrusion to heater casing 1, the medium is along 4 spiral transmission of helical blade simultaneously, can absorb electric heating pipe 3's heat better, improve heating homogeneity and efficiency.
Specifically, as shown in fig. 1, the spiral end face of the spiral blade 4 in the radial direction is attached to the inner surface wall of the heater housing 1, the spiral blade 4 is made of any one of stainless steel, carbon steel and aluminum alloy, the thickness of the spiral blade 4 is 0.8-1.2mm, and the spiral blade 4 enables the medium to be spirally transmitted when the medium flows, so that the flow velocity of the medium is favorably reduced, the medium can be in contact with the electric heating tube 3 for a long time, more heat is taken away, and the uniformity and efficiency of medium heating are improved.
Specifically, as shown in fig. 2, a plurality of cavities 6 are distributed in the inside of the heat preservation layer 2 in an equal-angle annular manner, and the cavities 6 are of arc-shaped structures, so that the cavities 6 contract inwards when the heat preservation layer 2 is extruded by a medium, and the cavities play a role in absorbing and extruding, and the arc-shaped structures are easier to bend and contract and have larger contraction areas, so that the heat preservation layer 2 has good compression resistance.
Specifically, as shown in fig. 3, the fixed part includes two clamp splice 7 of bolted connection in heat preservation 2, two clamp splice 7 are located helical blade 4's blade both sides respectively, and be equipped with the anti-skidding cushion block 8 of laminating blade on the clamp splice 7, the internal thread of clamp splice 7 is connected with the fastening bolt 9 that runs through the setting, the fixed part is equipped with at least two, and along helical blade 4's the equidistant distribution of axial direction, the fixed part makes two clamp splice 7 carry helical blade 4 through fastening bolt 9, thereby reuse bolt fixes clamp splice 7 on heat preservation 2 and play the fixed action, help stabilizing helical blade 4 under the impact force that the medium flows, reduce vibration.
Specifically, as shown in fig. 1, the sleeve 5 is made of any one of rock wool, asbestos, and glass fiber, and the sleeve 5 is made of a heat insulation material, so that heat generated by the electric heating pipe 3 is not directly transferred to the helical blade 4, thereby playing a role in heat insulation.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (7)
1. The utility model provides an electric heater protects casing, includes heater casing (1), heat preservation (2) and electric heating pipe (3), its characterized in that, the inside of heater casing (1) is equipped with helical blade (4), electric heating pipe (3) run through helical blade (4) to the outside of electric heating pipe (3) is cup jointed and is inlayed sleeve (5) of locating helical blade (4) inside, helical blade (4) are through fixed part and heater casing (1) fixed connection, the inside of heat preservation (2) has a plurality of cavitys (6).
2. An electric heater protection casing according to claim 1, characterized in that the radial helical end surface of the helical blade (4) abuts the inner surface wall of the heater casing (1).
3. The electric heater protection shell as claimed in claim 1, wherein the plurality of cavities (6) are annularly distributed in the insulating layer (2) at equal angles, and the cavities (6) are arc-shaped structures.
4. The electric heater protection shell as claimed in claim 1, wherein the fixing portion comprises two clamping blocks (7) bolted to the heat insulation layer (2), the two clamping blocks (7) are respectively located at two sides of the blades of the helical blades (4), the clamping blocks (7) are provided with anti-slip blocks (8) attached to the blades, and the internal threads of the clamping blocks (7) are connected with fastening bolts (9) arranged in a penetrating manner.
5. An electric heater protective casing according to claim 1, characterised in that the fixing portions are provided in at least two and equally spaced apart in the axial direction of the helical blades (4).
6. An electric heater protection casing according to any one of claims 1-5, characterized in that the material of the helical blade (4) is any one of stainless steel, carbon steel and aluminum alloy, and the thickness of the helical blade (4) is 0.8-1.2 mm.
7. A protective casing for an electric heater according to any one of claims 1-5, characterized in that the material of the sleeve (5) is any one of rock wool, rock wool and glass fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020928510.6U CN212205036U (en) | 2020-05-28 | 2020-05-28 | Electric heater protective housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020928510.6U CN212205036U (en) | 2020-05-28 | 2020-05-28 | Electric heater protective housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212205036U true CN212205036U (en) | 2020-12-22 |
Family
ID=73812189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020928510.6U Expired - Fee Related CN212205036U (en) | 2020-05-28 | 2020-05-28 | Electric heater protective housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212205036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251667A (en) * | 2021-04-30 | 2021-08-13 | 安徽华瑞电气有限公司 | Electric heater with pressure resistance |
-
2020
- 2020-05-28 CN CN202020928510.6U patent/CN212205036U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251667A (en) * | 2021-04-30 | 2021-08-13 | 安徽华瑞电气有限公司 | Electric heater with pressure resistance |
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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: 20201222 |