CN220355741U - Electric heating dry burning prevention structure - Google Patents
Electric heating dry burning prevention structure Download PDFInfo
- Publication number
- CN220355741U CN220355741U CN202322038383.9U CN202322038383U CN220355741U CN 220355741 U CN220355741 U CN 220355741U CN 202322038383 U CN202322038383 U CN 202322038383U CN 220355741 U CN220355741 U CN 220355741U
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- CN
- China
- Prior art keywords
- electric heating
- shell
- heating pipe
- heating tube
- dry
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- 238000005485 electric heating Methods 0.000 title claims abstract description 98
- 230000002265 prevention Effects 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 238000009841 combustion method Methods 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 description 9
- 238000009413 insulation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000008236 heating water Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
The utility model relates to an electric heating dry-heating prevention structure, which comprises a shell and an electric heating pipe arranged in the shell, wherein the lower end of the outer side of the shell is provided with a water inlet, the upper end of the shell is provided with a water outlet, the electric heating pipe is vertically arranged, a wiring terminal of the electric heating pipe faces downwards and is connected with a vertical sheet metal, two ends of the electric heating pipe extend out and are fixed at the bottom of the shell, two ends of the electric heating pipe are connected with wires and are fixedly provided with protective sleeves at the outer side, and the middle part of the electric heating pipe is connected with a wire assembly to be connected with a temperature controller; the upper end of the water outlet forms the highest water level in the shell, and the vertical height of the highest water level is higher than the upper end of the electric heating pipe. In this scheme, electric heating pipe adopts vertical mounting means, and water upwards walks from the below, because electric heating pipe heating portion, is less than the mouth of a river position, and the liquid level of water can cover on electric heating pipe upper portion completely, when starting pipeline electrical heating, has avoided electric heating dry combustion method, reduces the maintenance number of times of unit, reduces the maintenance cost of unit.
Description
Technical Field
The utility model relates to the technical field of heating pipes, in particular to an electric heating dry-burning prevention structure.
Background
With the continuous updating of technology, the sales of units are continuously advanced to north, the requirements on the units are continuously improved, domestic products are continuously made smaller, the design space of the units is smaller and smaller, the required functions of the products are more and more, problems can occur in design, and particularly when the electric heating of pipelines is designed, if the electric heating of the pipelines is not designed in place, the empty burning of heating pipes for electric heating of the pipelines can cause burning out.
Most of the existing electric heating pipes are horizontally placed, and in a horizontally placed state, the internal air is gradually increased, so that the electric heating pipes are not completely covered by water, and dry heating is easy. The air is the air from the inside of water, the air from the side of water after installation, and the density of air is little when the unit operation, can come up, after the time is long, the air can constantly accumulate for the electric heating pipe upper portion of keeping flat has one section to be in can not be by the water logging, forms dry combustion method easily.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide an electric heating dry burning prevention structure, which adopts a vertical installation mode to prevent water from being unable to completely cover an electric heating pipeline, and enables the heating part of the electric heating pipeline to be lower than a water gap position, so that the electric heating pipeline is prevented from being damaged by dry burning when the electric heating pipeline is used.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides an electric heating prevents dry combustion method structure, includes electrothermal tube subassembly, its characterized in that: the electric heating tube assembly comprises a shell and an electric heating tube arranged in the shell, wherein a water inlet is formed in the lower end of the outer side of the shell, a water outlet is formed in the upper end of the shell, the electric heating tube is vertically arranged, a wiring terminal of the electric heating tube faces downwards and is connected with a vertical sheet metal, two ends of the electric heating tube extend out and are fixed at the bottom of the shell, two ends of the electric heating tube are connected with wires, a protective sleeve is fixedly arranged on the outer side of the electric heating tube, and the middle part of the electric heating tube is connected with a wire assembly which is connected with a temperature controller; the upper end of the water outlet forms the highest water level in the shell, and the vertical height of the highest water level is higher than the upper end of the electric heating pipe.
Preferably, one end of the electric heating tube is provided with a cold end length section, and the upper end of the cold end length section is lower than the lower end of the water inlet.
Preferably, the outer side of the electric heating tube is coated with a black insulating sleeve.
Preferably, silicone rubber is plugged between the protective sleeve and the end of the electric heating tube.
Preferably, a first heat-insulating plate is provided on a side portion of the housing, and a second heat-insulating plate is provided on a top portion.
Preferably, the side wall of the shell is provided with a mounting groove, and the temperature controller is mounted in the mounting groove and is mounted and fixed through a spring washer, a pressing plate and a screw.
Preferably, a heat-shrinkable sleeve is arranged on the outer side of the wiring terminal.
By adopting the technical scheme, circulating water enters from the electric heating water inlet, and the liquid level rises to the highest water level to form full liquid and is discharged from the water outlet. And, when the installation, vertical installation, binding post down to install on vertical panel beating. According to the vertical installation mode, water flows upwards from the lower part under the normal operation of the unit, and the liquid level of the water can completely cover the upper part of the electric heating pipe due to the influence of gravity and the heating part of the electric heating pipe is lower than the water gap, so that the dry heating of the electric heating pipe is avoided when the electric heating of a pipeline is started, the maintenance times of the unit are reduced, the maintenance cost of the unit is reduced, and the use satisfaction of a user is improved.
It should be noted here that, although the electric heating pipe is installed vertically, there is air in the housing, the electric heating pipe is always in water, and dry burning can be effectively prevented.
In addition, in pipeline electrical heating, the electric heating pipe has one section cold junction length section in the foremost, and here is not heated, and here cold junction length section upper end needs to be lower than the mouth of a river position, can make the heating part of electric heating pipe be in the aquatic all the time, improves heating efficiency.
Drawings
Fig. 1 is a schematic cross-sectional structure of an electric heating dry-fire preventing structure.
FIG. 2 is a schematic cross-sectional view of an electric heating dry-fire preventing structure at another view angle
Description of the embodiments
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The electric heating dry burning prevention structure comprises an electric heating tube assembly, wherein the electric heating tube assembly comprises a shell 1 and an electric heating tube 2 arranged in the shell 1, a water inlet 8 is formed in the lower end of the outer side of the shell 1, a water outlet 9 is formed in the upper end of the shell, the electric heating tube 2 is vertically arranged, a wiring terminal of the electric heating tube 2 faces downwards and is connected with a vertical sheet metal, two ends of the electric heating tube 2 extend out and are fixed at the bottom of the shell 1, two ends of the electric heating tube 2 are connected with wires, a protective sleeve 3 is fixedly arranged on the outer side of the electric heating tube, and a wire assembly 4 is connected with a temperature controller 5 in the middle of the electric heating tube 2; the upper end of the water outlet 9 forms a highest water level 6 in the shell 1, and the vertical height of the highest water level 6 is higher than that of the upper end of the electric heating pipe 2.
In the technical scheme, circulating water enters from the electric heating water inlet, and the liquid level rises to the highest water level to form full liquid and then is discharged from the water outlet. And, when the installation, electric heating pipe vertical installation, binding post down to install on vertical panel beating. According to the vertical installation mode, water flows upwards from the lower part under the normal operation of the unit, and according to the influence of gravity, the liquid level of the water can completely cover the upper part of the electric heating pipe because the heating part of the electric heating pipe is lower than the water gap, so that when the electric heating of a pipeline is started, the dry heating of the electric heating pipe is avoided, the maintenance times of the unit are reduced, the maintenance cost of the unit is reduced, and the use satisfaction of a user is improved.
Although the electric heating pipe is vertically arranged, air is also arranged in the shell, the electric heating pipe is always in water, and dry burning can be effectively prevented. The heating pipe placed horizontally, after long-term use, has the possibility of dry burning in the upper section due to air accumulation.
Further, a cold end length section 7 is formed at one end of the electric heating tube 2, and the upper end of the cold end length section 7 is lower than the lower end of the water inlet 8. In the technical scheme, the foremost end of the electric heating pipe is provided with a cold end length section which is not heated, the upper end of the cold end length section is required to be lower than the water gap, and the heating part of the electric heating pipe can be always positioned in water, so that the heating efficiency is improved.
Further, the outer side of the electric heating tube 2 is covered with a black insulating sleeve 10. In this solution, a black insulating sleeve 10 is used to insulate and protect the electric heating tube 2.
Further, a silicone rubber 11 is interposed between the protective sleeve 3 and the end of the electric heating tube 2. In the technical scheme, the end part of the electric heating pipe 2 is protected by the silicone rubber 11 user, and the connecting part of the wires is more compact.
Further, a first insulation board 12 is provided on the side of the housing 1, and a second insulation board 13 is provided on the top. In this technical scheme, first heated board 12 and second heated board 13 are rubber and plastic sponge material, improve the thermal insulation performance of casing.
Further, a mounting groove 14 is formed in the side wall of the housing 1, and the temperature controller 5 is mounted in the mounting groove 14 and is mounted and fixed through a spring washer, a pressing plate and a screw. In the technical scheme, the temperature controller 5 is used for adjusting and controlling the heating temperature, and the temperature controller 5 can be firmly locked in the mounting groove 14 by the spring washer, the pressing plate and the screws.
Further, a heat shrinkage bush 15 is arranged on the outer side of the wiring terminal. In the technical scheme, the heat-shrinkable sleeve 15 is insulated and corrosion-resistant, and a user protects the wiring terminal.
In this embodiment, to the condition that the electric heating dry combustion method appears easily in the current pipeline electric heating process, in the above-mentioned scheme, through with the electric heating pipe vertical installation in the casing, make its electric heating pipe's heating portion be less than the mouth of a river position, the liquid level of water can cover on electric heating pipe upper portion completely, when starting pipeline electric heating, avoided electric heating dry combustion method, reduce the maintenance number of times of unit, reduce the maintenance cost of unit, improve user's use satisfaction. The foremost end of the electric heating pipe is provided with a cold end length section which is not heated, so that the upper end of the cold end length section is required to be lower than a water gap, the heating part of the electric heating pipe can be always positioned in water, and the heating efficiency is improved.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.
Claims (7)
1. The utility model provides an electric heating prevents dry combustion method structure, includes electrothermal tube subassembly, its characterized in that: the electric heating tube assembly comprises a shell (1) and an electric heating tube (2) arranged in the shell (1), wherein a water inlet (8) is formed in the lower end of the outer side of the shell (1), a water outlet (9) is formed in the upper end of the shell, the electric heating tube (2) is vertically arranged, a wiring terminal of the electric heating tube (2) faces downwards and is connected with a vertical sheet metal, two ends of the electric heating tube (2) extend out and are fixed at the bottom of the shell (1), two ends of the electric heating tube (2) are connected with wires, a protective sleeve (3) is fixedly arranged on the outer side of the electric heating tube, and a wire assembly (4) is connected with the middle part of the electric heating tube (2) and is connected with a temperature controller (5); the upper end of the water outlet (9) forms a highest water level (6) in the shell (1), and the vertical height of the highest water level (6) is higher than the upper end of the electric heating pipe (2).
2. An electrical heating dry-fire preventing structure according to claim 1, wherein: one end of the electric heating pipe (2) is provided with a cold end length section (7), and the upper end of the cold end length section (7) is lower than the lower end of the water inlet (8).
3. An electrically heated dry fire preventing structure as claimed in claim 2, wherein: the outer side of the electric heating tube (2) is coated with a black insulating sleeve (10).
4. An electrically heated dry fire preventing structure as claimed in claim 2, wherein: and a silicone rubber (11) is plugged between the protective sleeve (3) and the end part of the electric heating pipe (2).
5. An electrical heating dry-fire preventing structure according to claim 1, wherein: a first heat-insulating plate (12) is arranged on the side part of the shell (1), and a second heat-insulating plate (13) is arranged on the top.
6. An electrical heating dry-fire preventing structure according to claim 1, wherein: the side wall of the shell (1) is provided with a mounting groove (14), and the temperature controller (5) is mounted in the mounting groove (14) and is mounted and fixed through a spring washer, a pressing plate and a screw.
7. An electrical heating dry-fire preventing structure according to claim 1, wherein: and a heat-shrinkable sleeve (15) is arranged on the outer side of the wiring terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322038383.9U CN220355741U (en) | 2023-07-31 | 2023-07-31 | Electric heating dry burning prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322038383.9U CN220355741U (en) | 2023-07-31 | 2023-07-31 | Electric heating dry burning prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220355741U true CN220355741U (en) | 2024-01-16 |
Family
ID=89504644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322038383.9U Active CN220355741U (en) | 2023-07-31 | 2023-07-31 | Electric heating dry burning prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220355741U (en) |
-
2023
- 2023-07-31 CN CN202322038383.9U patent/CN220355741U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |