CN219063773U - Multi-plate diversion type particle electric heater - Google Patents
Multi-plate diversion type particle electric heater Download PDFInfo
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- CN219063773U CN219063773U CN202223460228.8U CN202223460228U CN219063773U CN 219063773 U CN219063773 U CN 219063773U CN 202223460228 U CN202223460228 U CN 202223460228U CN 219063773 U CN219063773 U CN 219063773U
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- 239000002245 particle Substances 0.000 title claims abstract description 49
- 238000005485 electric heating Methods 0.000 claims abstract description 87
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 23
- 238000000429 assembly Methods 0.000 claims abstract description 23
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a multi-plate diversion type particle electric heater, which comprises: the heater comprises a heater shell and a plurality of electric heating assemblies arranged along the horizontal direction; the electrothermal assembly comprises; a plurality of electrothermal guides for guiding and heating the heat absorbing particles flowing therethrough, the electrothermal guides being arranged at intervals along the vertical direction; the electric heating guide pieces and the connecting pieces are alternately connected to form an electric heating assembly; the electrothermal guide pieces are obliquely arranged downwards, a plurality of electrothermal guide pieces between two adjacent electrothermal assemblies are at least partially overlapped, and heat absorbing particles are guided by the electrothermal guide pieces of the two electrothermal assemblies in sequence in the process of moving downwards from the upper part of a heat absorbing channel between the two adjacent electrothermal assemblies. According to the multi-plate flow-guiding type particle electric heater provided by the utility model, the electric heating guide piece is arranged into an inclined structure, so that heat absorption particles are reciprocally baffled between the electric heating assemblies, the heat exchange stroke is prolonged, and the heat exchange efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of electric heating, and particularly relates to a multi-plate diversion type particle electric heater.
Background
An important reason for the fact that electric heaters currently on the market basically use heating elements in the form of electric heating tubes is that most of the market demands are heating fluid media. When the device is used for heating fluid media with strong heat transfer capacity such as gas and liquid, the device has the advantages of simple structure, mass production and simple installation.
The fluid medium tends to be electrically conductive and therefore it is desirable to ensure insulation between the heater core wire and the medium. The structure of the electric heating tube is sequentially provided with a metal electric heating alloy wire, a ceramic powder insulating layer and a metal outer tube sleeve from inside to outside. The advantage is that good insulativity, and the disadvantage is that the radiant energy of heater needs to pass through insulating layer and outer jacket in proper order just can transfer the heat to heating medium, and heat transfer thermal resistance is great.
Compared with the existing molten salt medium, the solid particles are used for energy storage, and have the advantages of high energy storage temperature and low energy storage medium cost. The wind and light discarding or valley electricity discarding is utilized, the solid particle medium is heated to 700-800 ℃ in an electric heating mode, and the energy storage advantage of the solid particles can be fully exerted. The fixed particle medium is not conductive, so that heat can be directly transferred to particles through the radiation of the electric heating wire without an intermediate heat conducting medium, the heat load can be increased, the material consumption can be reduced, and the cost is reduced. However, the existing fixed particle electric heating devices have lower heating efficiency.
Disclosure of Invention
The utility model provides a multi-plate diversion type particle electric heater which solves the technical problems, and specifically adopts the following technical scheme:
a multi-plate, flow-directing, pellet electric heater comprising:
the heater comprises a heater shell, wherein a feed inlet is formed in the upper side of the heater shell, and a discharge outlet is formed in the lower side of the heater shell;
the electric heating assemblies are arranged at intervals along the horizontal direction, and a heat absorption channel for heat absorption particles to pass through is formed between two adjacent electric heating assemblies;
the electrothermal assembly comprises:
the electric heating guide pieces are used for guiding and heating heat absorption particles flowing through the electric heating guide pieces and are arranged at intervals along the vertical direction;
the electric heating guide pieces and the connecting pieces are alternately connected to form the electric heating assembly;
the electrothermal guide pieces are obliquely arranged downwards, a plurality of electrothermal guide pieces between two adjacent electrothermal assemblies are at least partially overlapped, and heat absorption particles are guided by the electrothermal guide pieces of two electrothermal assemblies in sequence in the process of moving downwards from the upper part of the heat absorption channel between the two adjacent electrothermal assemblies.
Further, the electrothermal guide piece comprises a connecting part, an electrothermal guide part and an electrothermal piece, wherein the connecting part is connected with the electrothermal guide part, the connecting piece is connected to the connecting part of the electrothermal guide piece, the electrothermal piece is arranged on the electrothermal guide part, and the electrothermal guide part is arranged in a downward inclined mode.
Further, a plurality of threading through holes which are arranged at intervals along the direction away from the connecting part are formed in the two sides of the electric heating guide part, the electric heating piece comprises an electric heating wire, and the electric heating wire is wound to the plurality of threading through holes of the electric heating guide part and the lower surface of the electric heating guide part.
Further, the electric heating element further comprises two binding posts connected to two ends of the electric heating wire, one of the two binding posts is inserted into a threading through hole closest to the connecting portion on one side of the electric heating guiding portion, the other of the two binding posts is inserted into a threading through hole farthest from the connecting portion on the other side of the electric heating guiding portion, and two ends of the electric heating wire are respectively connected with one ends of the two binding posts in the electric heating guiding portion.
Further, the other ends of the two binding posts penetrate through the heater shell and are located outside the heater shell to be connected with a power supply.
Further, shielding parts for shielding the heating wires are arranged on two sides of the electric heating guide part, and the upper surface of the shielding part and the upper surface of the electric heating guide part are the same surface.
Further, the distance between the threading through hole and the upper surface of the electrothermal guiding part is smaller than the distance between the threading through hole and the lower surface of the electrothermal guiding part.
Further, fixing holes extending along the vertical direction are formed in corresponding positions of the connecting parts and the electric heating guide parts, and fixing screws sequentially penetrate through the fixing holes in the connecting parts and the electric heating guide parts to fix the connecting parts and the electric heating guide parts into a whole.
Further, the upper surface of the electrothermal guiding part is a curved surface.
Further, one end of the upper surface of the electrothermal guiding part, which is far away from the connecting part, is provided with a round corner part.
The multi-plate flow-guiding particle electric heater has the advantages that the electric heating guide piece is arranged in an inclined structure, so that heat absorption particles are reciprocally baffled between the electric heating assemblies, the heat exchange stroke is prolonged, and the heat exchange efficiency is improved.
The multi-plate flow-guiding particle electric heater has the advantages that the electric heating wires on the lower surface of the electric heating guide piece are prevented from directly contacting heat-absorbing particles, so that the electric heating wires can realize a high-efficiency heat transfer mode of direct radiation, and abrasion of the particles is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a multi-plate flow-directing pellet electric heater of the present utility model;
FIG. 2 is a schematic diagram of an electrical heating assembly of a multi-plate, flow-directing particulate electric heater of the present utility model;
FIG. 3 is an exploded view of an electric heating assembly of a multi-plate, flow-directing pellet electric heater of the present utility model;
FIG. 4 is a schematic diagram of another view of an electrothermal assembly of a multi-plate, flow-directing particulate electric heater of the present utility model;
FIG. 5 is a schematic diagram of yet another view of an electrothermal assembly of a multi-plate, flow-directing particulate electric heater of the present utility model;
FIG. 6 is a schematic diagram of the flow of heat absorbing particles of a multi-plate flow-guiding type particle electric heater according to the present utility model;
Detailed Description
Embodiments of the present application 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 exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
In this application, 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, and may also include the first and second features not being in direct contact but being in contact with each other by way of 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.
Fig. 1 shows a multi-plate flow-guiding particle electric heater of the present application, comprising a heater housing 10 and a plurality of electric heating assemblies 20. Wherein, the upper side of heater casing 10 is equipped with feed inlet 11, and the below of heat exchanger casing 10 is equipped with discharge gate 12. The heat absorbing particles are input into the heater shell 10 from the feed inlet 11, heated by the electric heating assemblies 20 and discharged out of the heater shell 10 from the discharge outlet 12 below.
As shown in fig. 2, in the embodiment of the present application, a plurality of thermoelectric modules 20 are disposed at intervals along a horizontal direction, and a heat absorbing channel 30 through which heat absorbing particles pass is formed between two adjacent thermoelectric modules 20. Specifically, the electric heating assembly 20 includes: a number of electrothermal guides 21 and a number of connectors 22. In the embodiment of the present application, the electrothermal guide 21 and the connection member 22 are each a block structure made of a ceramic material. Wherein a number of electrically heated guides 21 are used for guiding and heating the heat absorbing particles flowing through them. The plurality of electrothermal guides 21 are arranged at intervals along the vertical direction. The plurality of connecting pieces 22 and the plurality of electrothermal guiding pieces 21 are alternately arranged, and the plurality of electrothermal guiding pieces 21 and the plurality of connecting pieces 22 are alternately connected to form the electrothermal assembly 20. Wherein, the electrothermal guide pieces 21 are inclined downwards, and a plurality of electrothermal guide pieces 21 between two adjacent electrothermal assemblies 20 are at least partially overlapped, and the heat absorbing particles are guided by the electrothermal guide pieces 21 of two electrothermal assemblies 20 in sequence in the process of moving downwards from the upper part of the heat absorbing channel 30 between two adjacent electrothermal assemblies 20.
It can be understood that the electrothermal guide members 21 in the heat absorbing channels 30 between the electrothermal assemblies 20 in the present application are obliquely arranged, so that the heat absorbing channels 30 extending in the up-down direction meander, and heat absorbing particles are reciprocally baffled between the electrothermal assemblies 20, thereby prolonging the heat exchanging stroke and improving the heat exchanging efficiency. Meanwhile, the electric heating assembly 20 is formed by mutually splicing a plurality of electric heating guide pieces 21 and connecting pieces 22. This modular design allows for any desired sizing of the heater assembly 20 to facilitate manufacturing.
The electrothermal guide 21 has a tilt angle larger than the particle stacking angle, thereby ensuring that the heat absorbing particles can slide down on the upper surface thereof by gravity.
As shown in fig. 3-4, in the embodiment of the present application, the electrothermal guide 21 specifically includes a connection portion 211, an electrothermal guide portion 212, and an electrothermal member 213. The connection portion 211 is connected to the electrothermal guide portion 212. The aforementioned connecting piece 22 is specifically connected to the connecting portion 211 of the electrothermal guiding piece 21, the electrothermal piece 213 is disposed on the electrothermal guiding portion 212, and the electrothermal guiding portion 212 is disposed obliquely downward.
It is understood that the upper surface of the electrothermal guide portion 212 may be a plane or may be a curved surface, thereby increasing the heat exchange area of the upper surface of the electrothermal guide portion 212. In the embodiment of the present application, the upper surface of the electrothermal guide portion 212 is a wavy surface. And a rounded portion 2123 is provided at an end of the upper surface of the electrothermal guide portion 212 remote from the connection portion 211 for gentle flow of the heat absorbing particles at the folded angle.
In the embodiment of the present application, two sides of the electrothermal guiding portion 212 are provided with a plurality of threading through holes 2121 which are arranged at intervals along the direction away from the connecting portion 211, the electrothermal member 213 comprises an electrothermal wire 2131, and the electrothermal wire 2131 is wound to the plurality of threading through holes 2121 of the electrothermal guiding portion 212 and the lower surface of the electrothermal guiding portion 212. The heating wire 2131 is partially positioned in the electrothermal guide 212 and partially positioned at the lower surface of the electrothermal guide 212, thereby avoiding direct contact of the heating wire 2131 with the heat absorbing particles. Meanwhile, the heating wire 2131 positioned on the lower surface can heat the heat absorbing particles positioned below the heating wire in a high-efficiency heat transfer mode of direct radiation, and abrasion of the heat absorbing particles is avoided.
In the embodiment of the present application, shielding parts 2122 for shielding the heating wires 2131 are further provided at both sides of the electrothermal guide 212. The upper surface of the shielding portion 2122 is flush with the upper surface of the electrothermal guide portion 212. That is, the shielding portion 2122 is a portion extending from the upper portion of the electrothermal guide portion 212 to both sides. The shielding part 2122 serves to heat the wires 2131 located at both side portions of the electrothermal guide part 212 in such a way that abrasion of the heat absorbing particles is further prevented.
After entering from above the heat absorbing channel 30, the heat absorbing particles flow from top to bottom between the thermoelectric modules 20. Since the electrothermal guide portion 212 has a certain inclination, the trajectory of the endothermic particle when flowing is as shown in fig. 6: will flow along the upper surface of the electrothermal guide 212 and not directly contact the lower surface thereof, thereby not contacting the heating wire 2131. While the lateral heating wires 2131 are also shielded and protected by the protruding shielding portions 2122, also from direct contact with the particles. When the heating wire 2131 is energized to generate heat, the heating wire 2131 positioned in the threading through hole 2121 transfers the heat to the electric heating guide 212. At this time, the heat absorbing particles flow along the upper surface of the electrothermal guide 212, and the energy of the heating wire 2131 is transferred to the heat absorbing particles through the upper surface. Meanwhile, the heating wire 2131 attached to the lower surface of the electrothermal guide 212 directly heats the heat absorbing particles of the lower region thereof by the radiant energy. The heat absorbing particles are thus directly heated by radiation of the heating wire 2131 while exchanging heat with the electrothermal guide 212 in contact therewith on the one hand during the falling flow. The two are combined, and the heating effect is far greater than that of the electric heating tube.
In the embodiment of the present application, the threading through hole 2121 is at a smaller distance from the upper surface of the electrothermal guide 212 than from the lower surface of the electrothermal guide 212. In this way, the heating wire 2131 passing through the threading through hole 2121 is closer to the upper surface of the electrothermal guide 212, thereby improving the heating effect of the solid particles flowing to the upper surface of the electrothermal guide 212.
As shown in fig. 1 and 5, in the embodiment of the present application, the electric heating element 213 further includes two terminals 2132 connected to two ends of the electric heating wire 2131, one of the two terminals 2132 is inserted into the threading through hole 2121 of one side of the electric heating guiding portion 212 closest to the connecting portion 211, and the other of the two terminals 2132 is inserted into the threading through hole 2121 of the other side of the electric heating guiding portion 212 farthest from the connecting portion 211. Both ends of the heating wire 2131 are connected to one ends of the two posts 2132 inside the electrothermal guide 212. As a preferred embodiment, the other ends of the two posts 2132 pass through the heater housing 10 and are located outside the heater housing 10 to be connected to a power source.
As shown in fig. 3, fixing holes 221 extending in the vertical direction are provided at corresponding positions of the connection parts 211 of the connection parts 22 and the electrothermal guides 21, and fixing screws sequentially pass through the fixing holes 221 on the connection parts 22 and the electrothermal guides to fix the connection parts 22 and the electrothermal guides 21 as a unit.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.
Claims (10)
1. A multi-plate, flow-directing, particulate electric heater comprising:
the heater comprises a heater shell, wherein a feed inlet is formed in the upper side of the heater shell, and a discharge outlet is formed in the lower side of the heater shell;
the electric heating assemblies are arranged at intervals along the horizontal direction, and a heat absorption channel for heat absorption particles to pass through is formed between two adjacent electric heating assemblies;
the electrothermal assembly comprises:
the electric heating guide pieces are used for guiding and heating heat absorption particles flowing through the electric heating guide pieces and are arranged at intervals along the vertical direction;
the electric heating guide pieces and the connecting pieces are alternately connected to form the electric heating assembly;
the electrothermal guide pieces are obliquely arranged downwards, a plurality of electrothermal guide pieces between two adjacent electrothermal assemblies are at least partially overlapped, and heat absorption particles are guided by the electrothermal guide pieces of two electrothermal assemblies in sequence in the process of moving downwards from the upper part of the heat absorption channel between the two adjacent electrothermal assemblies.
2. The multi-plate, flow-directing particulate electric heater of claim 1, wherein,
the electric heating guide piece comprises a connecting part, an electric heating guide part and an electric heating piece, wherein the connecting part is connected with the electric heating guide part, the connecting piece is connected to the connecting part of the electric heating guide piece, the electric heating piece is arranged on the electric heating guide part, and the electric heating guide part is obliquely arranged downwards.
3. The multi-plate, flow-directing particulate electric heater of claim 2, wherein,
the electric heating guide part comprises an electric heating element, wherein a plurality of threading through holes are formed in two sides of the electric heating guide part along the direction away from the connecting part at intervals, and the electric heating element comprises an electric heating wire which is wound to the electric heating guide part and a plurality of threading through holes and the lower surface of the electric heating guide part.
4. The multi-plate, flow-directing particulate electric heater of claim 3,
the electric heating part further comprises two binding posts connected to two ends of the electric heating wire, one of the two binding posts is inserted into a threading through hole closest to the connecting part on one side of the electric heating guiding part, the other of the two binding posts is inserted into a threading through hole farthest from the connecting part on the other side of the electric heating guiding part, and two ends of the electric heating wire are respectively connected with one ends of the two binding posts in the electric heating guiding part.
5. The multi-plate, flow-directing particulate electric heater of claim 4, wherein,
the other ends of the two binding posts penetrate through the heater shell and are positioned outside the heater shell to be connected with a power supply.
6. The multi-plate, flow-directing particulate electric heater of claim 3,
the electric heating device is characterized in that shielding parts for shielding the electric heating wires are further arranged on two sides of the electric heating guide part, and the upper surface of the shielding part and the upper surface of the electric heating guide part are the same.
7. The multi-plate, flow-directing particulate electric heater of claim 3,
the distance between the threading through hole and the upper surface of the electrothermal guiding part is smaller than the distance between the threading through hole and the lower surface of the electrothermal guiding part.
8. The multi-plate, flow-directing particulate electric heater of claim 2, wherein,
the connecting piece with the fixed orifices that extends along vertical direction is equipped with to the corresponding position of connecting portion of electric heat guide, and set screw passes a plurality of in proper order connecting piece and a plurality of fixed orifices on the electric heat guide will a plurality of connecting piece and a plurality of the electric heat guide is fixed into a whole.
9. The multi-plate, flow-directing particulate electric heater of claim 2, wherein,
the upper surface of the electrothermal guiding part is a curved surface.
10. The multi-plate, flow-directing particulate electric heater of claim 2, wherein,
and one end, far away from the connecting part, of the upper surface of the electrothermal guiding part is provided with a round corner part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223460228.8U CN219063773U (en) | 2022-12-23 | 2022-12-23 | Multi-plate diversion type particle electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223460228.8U CN219063773U (en) | 2022-12-23 | 2022-12-23 | Multi-plate diversion type particle electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219063773U true CN219063773U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223460228.8U Active CN219063773U (en) | 2022-12-23 | 2022-12-23 | Multi-plate diversion type particle electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219063773U (en) |
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2022
- 2022-12-23 CN CN202223460228.8U patent/CN219063773U/en active Active
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Effective date of registration: 20240327 Address after: Room 1211, 12th Floor, Building D, Free Port, East New City Headquarters, No. 1188 Qufu Road, High tech Zone, Wuxing District, Huzhou City, Zhejiang Province, 313000, China Patentee after: Zhejiang Lvchu Technology Co.,Ltd. Country or region after: China Patentee after: Zhejiang Gaosheng Solar Thermal Power Generation Technology Research Institute Co.,Ltd. Address before: Room 1201, 12 / F, building D, free port, Huzhou East New Town headquarters, 1188 Qufu Road, Wuxing District, Huzhou City, Zhejiang Province, 313000 Patentee before: Zhejiang Gaosheng Solar Thermal Power Generation Technology Research Institute Co.,Ltd. Country or region before: China |