CN109373427A - A kind of heavy duty detergent electric heater based on magnetic Nano fluid - Google Patents
A kind of heavy duty detergent electric heater based on magnetic Nano fluid Download PDFInfo
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- CN109373427A CN109373427A CN201810982466.4A CN201810982466A CN109373427A CN 109373427 A CN109373427 A CN 109373427A CN 201810982466 A CN201810982466 A CN 201810982466A CN 109373427 A CN109373427 A CN 109373427A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/04—Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/08—Electric heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/20—Heat consumers
- F24D2220/2009—Radiators
- F24D2220/2036—Electric radiators
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Abstract
The present invention is a kind of heavy duty detergent electric heater based on magnetic Nano fluid, which includes helical fin electric heating body, lower section pipeline, intermediate conduit, top pipeline, dendritic heat-sink unit, bar magnet block, pipe head and special-shaped magnet block；Above-mentioned top pipeline, intermediate conduit and lower section pipeline constitutes heating agent pipeline, and the nano-fluid heating agent that is magnetic is flowed in heating agent pipeline；It is mounted on a dendritic heat-sink unit along the vertical direction in each intermediate conduit, multiple bar magnet blocks have been evenly arranged between two neighboring dendritic heat-sink unit along the vertical direction, have been arranged with special-shaped magnet block on the top pipeline and lower section pipeline between two intermediate conduits；The cylinder shape groove for being provided centrally with the nested top pipeline of energy or lower section pipeline of the abnormity magnet block.Heating speed can be improved by using magnetic Nano fluid in the electric heater, reduces preheating time, convection transfer rate can be improved using helical fin electric heating body, and keep heating process more stable.
Description
Technical field
The present invention relates to domestic electric heating heating equipment fields, and in particular to a kind of heavy duty detergent based on magnetic Nano fluid
Electric heater.
Background technique
Lack the area and north cold area of central heating in south, to keep amenity to need by electric heating
The heating equipments such as device, air-conditioning carry out auxiliary heating, and electric heater can be widely applied to house, office space, hotel, hospital etc.
In civil buildings and public place.Radiation heat transfer and heat transfer free convection are the groundwork modes of electric heater, that is, pass through heat dissipation
The high temperature on piece surface and big surface area effectively heat surrounding air.And in the inside of electric heater, thermal medium from
Right convection current is the major way to thermal medium heating.
Currently, common electric heater is generally using water or conduction oil as thermal medium, but the free convection of thermal medium water
The coefficient of heat transfer is lower, and the preheating time of conduction oil is longer and required power is larger.In addition, heating device in electric heater frequently with
Tubular electrically heated rod, effective heating surface (area) (HS is smaller and thermal conduction resistance during heating is larger, such as Patent No.
The novel oil electric heater of one kind disclosed in 201721284997.3 Chinese patent, and application No. is 201711319626.9
Chinese patent disclosed in plate-type oil heater electric heater, thermal medium is conduction oil, and heated using round heating rod, by
In the specific heat capacity of conduction oil, compared with die, its initial heating time is longer, under conditions of reaching identical heating temperature, it is required plus
Thermal power and required heating amount are larger, are unfavorable for reducing energy consumption, during heating thermal medium, conduction oil
Thick temperature boundary layer can be formed on round heating rod, the heat of heating rod not can be carried out efficient transmitting, it is right to hinder its
Stream heat transfer process reduces the convective heat-transfer coefficient of conduction oil, therefore its heating efficiency is lower.In short, selection and the electricity of thermal medium
The improvement of heater form is that electric heater currently on the market is badly in need of facing and be solved the problems, such as.
Summary of the invention
In view of the deficiencies of the prior art, the technical issues of present invention intends to solve is to propose one kind based on magnetic Nano stream
Heating speed can be improved by using magnetic Nano fluid in the heavy duty detergent electric heater of body, the electric heater, reduces preheating time, separately
The outer convection transfer rate that thermal medium can be improved using helical fin electric heating body, and keep heating process more uniform steady
It is fixed.
The present invention solve the technical problem the technical solution adopted is that: provide a kind of based on the efficient of magnetic Nano fluid
Type electric heater, it is characterised in that the electric heater include helical fin electric heating body, lower section pipeline, intermediate conduit, top pipeline,
Dendritic heat-sink unit, bar magnet block, pipe head and special-shaped magnet block；It is arranged in equal spacing between upper and lower pipeline more
A intermediate conduit, intermediate conduit one end are connect with top lower end of duct, and one end is connect with lower section pipeline upper end；Pipeline above
Both ends and one end of lower section pipeline are provided with pipe head, and the other end of lower section pipeline passes through installation helical fin electric heating
Body is sealed；The helical fin electric heating body is located at the inside of pipeline below electric heater, spiral coaxial with lower section pipeline
There is helical fin, being internally connected with conducting wire can be connected with extraneous power supply in the outside wall surface of shape fin electric heating body；Above-mentioned
Top pipeline, intermediate conduit and lower section pipeline constitute heating agent pipeline, and the nano-fluid heating agent that is magnetic is flowed in heating agent pipeline；?
A dendritic heat-sink unit is mounted in each intermediate conduit along the vertical direction, along upper between two neighboring dendritic heat-sink unit
Lower direction has been evenly arranged multiple bar magnet blocks, arranges on the top pipeline and lower section pipeline between two intermediate conduits
There is special-shaped magnet block；The cylinder shape groove for being provided centrally with the nested top pipeline of energy or lower section pipeline of the abnormity magnet block；
The cross section of the dendritic heat-sink unit is rectangle, including the identical dendritic radiator portion of four structures, four branches
Shape radiator portion is arranged symmetrically centered on corresponding intermediate conduit in front and rear, left and right, on the trunk of each dendritic radiator portion
Multiple straight radiating fins are connected, and the multiple straight radiating fins for being located at trunk side are parallel to each other, the root of trunk connects intermediate
Pipeline；
Several have been evenly arranged on the opposite side of two adjacent dendritic heat-sink units for fixing bar shaped magnetic
The quantity of the groove of iron block, the number of recesses and bar magnet block matches；
The length of bar magnet block be each dendritic heat-sink unit depth of groove and two neighboring dendritic heat-sink unit it
Between the sum of pore width.
Compared with existing electric heater, the invention has the benefit that
1, the present invention innovatively uses magnetic Nano fluid as heating working medium, and magnetic Nano fluid belongs to solid-liquid two-phase
Mixture can effectively improve the coefficient of heat transfer of magnetic Nano fluid, together by the way that the bigger magnetic nanoparticle of thermal coefficient is added
When be combined with the special-shaped magnet block arranged on the bar magnet block and upper and lower pipeline being arranged between dendritic heat-sink unit,
Fe in heating agent pipeline can be strengthened by generating magnetic field3O4The interaction of nanoparticle and water, and pass through magnetic nano-particle
Movement reduce heat transfer resistance, improve localized thermal conductivity, and then enhance the heat dissipation effect of heating properties and dendritic heat-sink unit.
2, the heat convection area of calandria can be increased by helical fin using helical fin electric heating body, together
When can destroy the thermal boundary layer in diabatic process, to reduce heating thermal resistance, improve the convection current between thermal medium and calandria
The coefficient of heat transfer, to reach higher heating efficiency.
3, dendritic heat-sink unit can increase effective radiating surface of electric heater by increasing the radiating fin quantity of bifurcated
Product, in addition, in the corresponding position of dendritic heat-sink unit setting groove in order to arrange bar magnet block, and in intermediate conduit
Magnetic Nano fluid cooperates, and improves heat-sinking capability.
Detailed description of the invention
In order to illustrate more clearly of design scheme of the invention, the present invention is made with reference to the accompanying drawings and embodiments further
Explanation.
Fig. 1 is a kind of schematic perspective view of the heavy duty detergent electric heater based on magnetic Nano fluid of the present invention；
Fig. 2 is a kind of section based on the heavy duty detergent electric heater of magnetic Nano fluid along integral central line after longitudinal sectional of the present invention
Schematic diagram；
Fig. 3 is a kind of knot of the helical fin electric heating body of the heavy duty detergent electric heater based on magnetic Nano fluid of the present invention
Structure schematic diagram；
Fig. 4 is a kind of structural representation of the dendritic heat-sink unit of the heavy duty detergent electric heater based on magnetic Nano fluid of the present invention
Figure；
Fig. 5 is that a kind of cross section of the dendritic heat-sink unit of the heavy duty detergent electric heater based on magnetic Nano fluid of the present invention shows
It is intended to；
Fig. 6 is a kind of stereochemical structure of the special-shaped magnet block 8 of the heavy duty detergent electric heater based on magnetic Nano fluid of the present invention
Schematic diagram；
In figure, helical fin electric heating body 1, lower section pipeline 2, intermediate conduit 3, top pipeline 4, dendritic heat-sink unit 5,
Bar magnet block 6, pipe head 7, special-shaped magnet block 8.
Specific embodiment
Technical solution of the present invention is described in detail below by accompanying drawings and embodiments, but the embodiment is only
Effect is illustrated, not in this, as limiting the scope of the present invention.
(abbreviation electric heater includes: spiral shell referring to Fig. 1-5) to a kind of heavy duty detergent electric heater based on magnetic Nano fluid of the present invention
Revolve shape fin electric heating body 1, lower section pipeline 2, intermediate conduit 3, top pipeline 4, dendritic heat-sink unit 5, bar magnet block 6, pipe
Road end socket 7 and special-shaped magnet block 8；Multiple intermediate conduits 3,3 one end of intermediate conduit are arranged in equal spacing between upper and lower pipeline
It is connect with top lower end of duct, one end is connect with lower section pipeline upper end；The both ends of pipeline and one end of lower section pipeline are equal above
It is provided with pipe head 7, the other end of lower section pipeline is sealed by installing helical fin electric heating body；The spiral shape
Fin electric heating body 1 is located at the inside of pipeline 2 below electric heater, coaxial with lower section pipeline 2, helical fin electric heating body 1
There is helical fin, being internally connected with conducting wire can be connected with extraneous power supply in outside wall surface；Above-mentioned top pipeline, intermediate conduit
Heating agent pipeline is constituted with lower section pipeline, the nano-fluid heating agent that is magnetic is flowed in heating agent pipeline；The edge in each intermediate conduit
Up and down direction is mounted on a dendritic heat-sink unit 5, is evenly arranged along the vertical direction between two neighboring dendritic heat-sink unit 5
There are multiple bar magnet blocks 6, is arranged with special-shaped magnet on the top pipeline 4 and lower section pipeline 2 between two intermediate conduits 3
Block 8；The cylinder shape groove for being provided centrally with the nested top pipeline of energy or lower section pipeline of the abnormity magnet block 8；
The cross section of the dendritic heat-sink unit 5 is rectangle, including the identical dendritic radiator portion 51 of four structures, four
Dendritic radiator portion is arranged symmetrically centered on corresponding intermediate conduit in front and rear, left and right, the trunk of each dendritic radiator portion
The upper multiple straight radiating fins of connection, and the multiple straight radiating fins for being located at trunk side are parallel to each other, in the root connection of trunk
Between pipeline；
Several have been evenly arranged on the opposite side of two adjacent dendritic heat-sink units for fixing bar shaped magnetic
The quantity of the groove of iron block 6, the number of recesses and bar magnet block matches；
Depth of groove and two neighboring dendritic heat-sink unit 5 of the length of bar magnet block 6 for each dendritic heat-sink unit 5
Between the sum of pore width, the size of the abnormity magnet block 8 is according to top pipeline 4, the caliber and intermediate tube of lower section pipeline 2
The spacing in road 3 determines.
Further characteristic of the invention is that the dendritic heat-sink unit 5 further includes single branch heat dissipation straight fins 52, and single branch dissipates
Hot straight fins are located between two dendritic radiator portions, and single branch heat dissipation straight fins and adjacent dendritic radiator portion side is straight
Radiating fin is parallel, and spacing is equal；One end of single branch heat dissipation straight fins 52 is directly connected to intermediate conduit.
Further characteristic of the invention is, be located in the dendritic heat-sink unit straight radiating fin on front and back sides it
Between spacing be greater than be located at left and right side on straight radiating fin between spacing.Straight radiating fin on front and back sides it
Between spacing be 1.1~1.5 times of the spacing between straight radiating fin on the left and right side.
Further characteristic of the invention is that the length of the helical fin electric heating body is the 2/ of lower section duct length
3~3/4.The diameter 10-15mm of helical fin electric heating body, length 450-500mm, fin height 2-5mm, fin spacing 5-
10mm。
The left end of the helical fin electric heating body 1 is provided with screw thread, is cooperated with the screw thread of lower section pipeline 2,
Pipe head 7 is arranged in the other end of lower section pipeline 2, is sealed to lower section pipeline 2；Spiral shell on helical fin electric heating body 1
Rotation shape fin can be arranged by way of welding according to the design size；Helical fin electric heating body 1 is using straight
The mode of connecting resistance heating, i.e., be directly translated into thermal energy for electric energy by joule heating effect using the electric current for flowing through resistance and added
Heat, helical fin can increase effective heating surface (area) (HS of helical fin electric heating body 1, while can be thinned or shorten heating
The thermal boundary layer that process generates, and then reduce the heat transfer resistance in Convective Heat Transfer, the heating efficiency of electric heater is improved, is reduced
Preheating time.
Further characteristic of the invention is, the material of the straight radiating fin of dendritic heat-sink unit and single branch heat dissipation straight fins
Be aluminum alloy materials, each fin with a thickness of 1mm, the entire length of dendritic heat-sink unit is 100-110mm, and width is
65-75mm is highly 470-520mm, and the spacing between two neighboring dendritic heat-sink unit is 5-10mm.
Further characteristic of the invention is that the bar magnet block 6 is cuboid magnet block, and material is that ferrite is black
The polar orientation of magnet, neighbouring bar magnet block is identical, i.e., the left and right side of first bar magnet block is if it is a left side
Side be the ultra-Right side N be the pole S arrangement, then bar magnet block below also all be in left side be the ultra-Right side N be the pole S arrangement.Bar shaped
The width of magnet block and the width of dendritic heat-sink unit match, highly consistent with the groove length on dendritic heat-sink unit.
Further characteristic of the invention is that the diameter of the top pipeline and lower section pipeline is 30mm, length 700-
750mm, spacing 550-600mm, the diameter of intermediate conduit are 20mm, and the quantity of intermediate conduit is 5-9.
Further characteristic of the invention is that the abnormity magnet block 8 is made of two symmetrical structures, each symmetrical structure
On be provided with semi-circular recesses, the semi-circular recesses of two symmetrical structures just constitute a cylinder shape groove, the cylinder
The size of groove and the caliber of top pipeline or lower section pipeline match, and two symmetrical structures pass through magnetic-adsorption together.
Dendritic heat-sink unit 5 can effectively increase the heat convection area and radiation heat transfer area with external environment, improve
Heat exchange amount shortens the heating time to external environment.Bar magnet block 6 and special-shaped magnet block 8 generate magnetic field and magnetism can be enhanced
The perturbation action of nanoparticle makes the boundary layer in all heating agent pipelines be thinned, reduce heat transfer resistance, while enhancing nanometer
The conduction process of grain, and then strengthen the heat exchange property of magnetic Nano fluid.
The operation principle of the present invention is that: the magnetic Nano fluid in electric heater is in lower section helical fin electric heating body 1
Under heating, temperature high-density becomes smaller gradually to be moved upwards under the effect of gravity, at the same the lower thermal medium of top temperature to
Lower movement；Magnetic Nano fluid after heating is radiated in intermediate conduit 3 by dendritic heat-sink unit 5, is fixed on dendritic
Bar magnet block 6 on heat-sink unit 5 and the special-shaped magnet block 8 being fixed on top pipeline 4 and lower section pipeline 2 are by generating
Magnetic field influences the movement of the magnetic nano-particle in heating agent pipeline, on the one hand can make the interaction of magnetic nano-particle and water
Aggravation, improves the local convective heat transfer coefficient of magnetic Nano fluid, and the movement of another aspect magnetic nano-particle leads to heat transfer heat
Resistance reduces, to improve localized thermal conductivity, while the fin arrangement form of 5 tight type of dendritic heat-sink unit can increase electric heater
Heat dissipation area, the two combine can effective strengthening heat transfer, enhance heat dissipation effect.
Heretofore described magnetic Nano fluid is that magnetic nanoparticle is mixed to a kind of obtained stream with deionized water
Body, heat transfer property is more preferable, and magnetic Nano fluid can be Fe3O4/ hydromagnetic nano-fluid, Fe3O4/ conduction oil magnetic Nano
Fluid or other with ferromagnetic nano-fluid.
Embodiment 1
A kind of heavy duty detergent electric heater based on magnetic Nano fluid of the present embodiment, comprising: helical fin electric heating body 1,
Lower section pipeline 2, intermediate conduit 3, top pipeline 4, dendritic heat-sink unit 5, bar magnet block 6, pipe head 7 and special-shaped magnet block
8。
As shown in Figure 1, be arranged in equal spacing with multiple intermediate conduits 3 between upper and lower pipeline, 3 one end of intermediate conduit with
The connection of top lower end of duct, one end are connect with lower section pipeline upper end, and the both ends of pipeline 4 and one end of lower section pipeline 2 are equal above
It is provided with pipe head 7, the other end of lower section pipeline 2 is sealed by installing helical fin electric heating body 1；Helical rib
Piece electric heating body 1 is located at the inside of pipeline 2 below electric heater, coaxial with lower section pipeline 2, outside helical fin electric heating body 1
There is helical fin, being internally connected with conducting wire can be connected with extraneous power supply on wall surface.
In the present embodiment, the length of helical fin electric heating body 1 is the 3/4 of 2 length of lower section pipeline.Helical fin electricity
The diameter 15mm of calandria 1, length 500mm, fin height 5mm, fin spacing 10mm.
As shown in figure 4, it is mounted on a dendritic heat-sink unit 5 along the vertical direction in each intermediate conduit 3, it is dendritic to dissipate
The cross section of hot cell 5 is rectangle, including the identical dendritic radiator portion 51 of four structures and single branch radiate straight fins 52, adjacent
It has been evenly arranged multiple bar magnet blocks 6 along the vertical direction between two dendritic heat-sink units 5.In addition, in two intermediate conduits 3
Between top pipeline 4 and lower section pipeline 2 on be arranged with special-shaped magnet block 8；
In the present embodiment, the diameter of top pipeline 4 and lower section pipeline 2 is 30mm, length 750mm, spacing 600mm, in
Between the diameter of pipeline 3 be 20mm, the quantity of intermediate conduit 3 is 7.The straight radiating fin of dendritic heat-sink unit 5 and single branch heat dissipation
The material of straight fins is aluminum alloy materials, each fin with a thickness of 1mm, the entire length of dendritic heat-sink unit is 110mm,
Width is 75mm, is highly 520mm, and the spacing between two neighboring dendritic heat-sink unit 5 is 10mm.In dendritic heat-sink unit 5
The spacing between straight radiating fin on front and back sides is the spacing between the straight radiating fin on left and right side
1.5 again.
Bar magnet block 6 is cuboid magnet block, and material is the black magnet of ferrite, neighbouring bar magnet block
Polar orientation is identical, and the width of bar magnet block 6 and the width of dendritic heat-sink unit 5 match, highly with dendritic heat-sink unit 5
On groove length it is consistent.Special-shaped magnet block 8 is made of two symmetrical structures, is provided on each symmetrical structure semicircle recessed
Slot, the semi-circular recesses of two symmetrical structures just constitute a cylinder shape groove, the size of the cylinder shape groove and upper square tube
The caliber of road or lower section pipeline matches, and two symmetrical structures pass through magnetic-adsorption together.
In the present embodiment, the magnetic Nano fluid is Fe3O4/ hydromagnetic nano-fluid, nanometer Fe3O4Mass fraction
It is 0.5%.Electric heater in the present embodiment can obvious enhanced heat exchange process, magnetic Nano fluid is in helical fin electric heating body
1 and bar magnet block 6 under the action of, can increase heat convection area, be thinned thermal boundary layer, and can pass through improve intermediate conduit 3
The convection transfer rate of middle thermal medium, and then enhance the heat dissipation effect at dendritic heat-sink unit 5.In identical heating power
It under 1000W, is kept for the heating time of identical 15min, the heat medium temperature in the present embodiment increases 28 DEG C, and answers under identical parameters
22 DEG C are increased with common round tube electric heating body, the electric heater temperature that heating agent is water, therefore the present embodiment can significantly improve heating speed
Degree shortens heating time.
Embodiment 2
The present embodiment a kind of composed structure and connection type of heavy duty detergent electric heater each section based on magnetic Nano fluid
With embodiment 1, the difference is that, in the present embodiment, the length of helical fin electric heating body 1 is 2 length of lower section pipeline
2/3.The diameter 10mm of helical fin electric heating body 1, length 450mm, fin height 2mm, fin spacing 5mm.
In the present embodiment, the diameter of top pipeline 4 and lower section pipeline 2 is 30mm, length 700mm, spacing 550mm, in
Between the diameter of pipeline 3 be 20mm, the quantity of intermediate conduit 3 is 6.The straight radiating fin of dendritic heat-sink unit 5 and single branch heat dissipation
The material of straight fins is aluminum alloy materials, each fin with a thickness of 1mm, the entire length of dendritic heat-sink unit is 100mm,
Width is 65mm, is highly 470mm, and the spacing between two neighboring dendritic heat-sink unit 5 is 5mm.Position in dendritic heat-sink unit 5
Spacing between the straight radiating fin on front and back sides is 1.1 of the spacing between the straight radiating fin on left and right side
Times.
In the present embodiment, the magnetic Nano fluid is Fe3O4/ hydromagnetic nano-fluid, nanometer Fe3O4Mass fraction
It is 0.5%.It equally at identical heating power 1000W, is kept for the heating time of identical 15min, the heating agent in the present embodiment
Temperature increases 29 DEG C, and increases 21 using common round tube electric heating body, the electric heater temperature that heating agent is water under identical parameters
DEG C, therefore the present embodiment can equally significantly improve heating speed, shorten heating time.
Embodiment 3
A kind of heavy duty detergent electric heater based on magnetic Nano fluid of the present embodiment, comprising: helical fin electric heating body 1,
Lower section pipeline 2, intermediate conduit 3, top pipeline 4, dendritic heat-sink unit 5, bar magnet block 6, pipe head 7 and special-shaped magnet block
8；Multiple intermediate conduits 3 are arranged in equal spacing between upper and lower pipeline, 3 one end of intermediate conduit is connect with top lower end of duct,
One end is connect with lower section pipeline upper end；The both ends of pipeline 4 and one end of lower section pipeline 2 are provided with pipe head 7 above, under
The other end in square tube road 2 is sealed by installing helical fin electric heating body 1；Helical fin electric heating body 1 is located at electricity
The inside of pipeline 2, coaxial with lower section pipeline 2 below warmer, has helical rib in the outside wall surface of helical fin electric heating body 1
Piece, being internally connected with conducting wire can be connected with extraneous power supply.
It is mounted on a dendritic heat-sink unit 5, two neighboring dendritic heat dissipation along the vertical direction in each intermediate conduit 3
Multiple bar magnet blocks 6 are evenly arranged between unit 5 along the vertical direction, 4 He of top pipeline between two intermediate conduits 3
Special-shaped magnet block 8 is arranged on lower section pipeline 2, being provided centrally with for special-shaped magnet block 8 can nested top pipeline or lower square tube
The cylinder shape groove in road；The cross section of dendritic heat-sink unit 5 be rectangle, including the identical dendritic radiator portion 51 of four structures with
And single branch heat dissipation straight fins 52, four dendritic radiator portions are arranged symmetrically centered on corresponding intermediate conduit in front and rear, left and right,
Multiple straight radiating fins are connected on the trunk of each dendritic radiator portion, and the multiple straight radiating fins for being located at trunk side are mutual
In parallel, the root of trunk connects intermediate conduit；
Several have been evenly arranged on the opposite side of two adjacent dendritic heat-sink units for fixing bar shaped magnetic
The quantity of the groove of iron block 6, the number of recesses and bar magnet block matches；
Single branch heat dissipation straight fins are located between two dendritic radiator portions, and single branch heat dissipation straight fins and adjacent dendritic dissipate
The straight radiating fin of hot part side is parallel, and spacing is equal；One end of single branch heat dissipation straight fins 52 is directly connected to intermediate conduit.
The spacing between straight radiating fin being located on front and back sides in dendritic heat-sink unit 5 is the straight radiating fin on left and right side
1.3 times of spacing between piece.
The heretofore described inferior noun of locality upper all around is a relative concept, dendritic heat-sink unit is arranged
Groove location is left and right directions, and two opposite flanks for being not provided with groove are front-rear direction.
The present invention does not address place and is suitable for the prior art.
Claims (10)
1. a kind of heavy duty detergent electric heater based on magnetic Nano fluid, it is characterised in that the electric heater includes that helical fin electricity adds
Hot body, lower section pipeline, intermediate conduit, top pipeline, dendritic heat-sink unit, bar magnet block, pipe head and special-shaped magnet block；
Multiple intermediate conduits are arranged in equal spacing between upper and lower pipeline, intermediate conduit one end is connect with top lower end of duct, one end
It is connect with lower section pipeline upper end；The both ends of pipeline and one end of lower section pipeline are provided with pipe head, lower section pipeline above
The other end by install helical fin electric heating body be sealed；The helical fin electric heating body is located under electric heater
The inside in square tube road, it is coaxial with lower section pipeline, there is helical fin, inside connects in the outside wall surface of helical fin electric heating body
Being connected to conducting wire can be connected with extraneous power supply；Above-mentioned top pipeline, intermediate conduit and lower section pipeline constitutes heating agent pipeline, in heating agent
The nano-fluid heating agent that is magnetic is flowed in pipeline；It is single to be mounted on a dendritic heat dissipation along the vertical direction in each intermediate conduit
Member has been evenly arranged multiple bar magnet blocks between two neighboring dendritic heat-sink unit, in two intermediate conduits along the vertical direction
Between top pipeline and lower section pipeline on be arranged with special-shaped magnet block；Being provided centrally with for the abnormity magnet block can be nested
The cylinder shape groove of top pipeline or lower section pipeline；
The cross section of the dendritic heat-sink unit is rectangle, including the identical dendritic radiator portion of four structures, and four dendritic scattered
Hot part is arranged symmetrically centered on corresponding intermediate conduit in front and rear, left and right, is connected on the trunk of each dendritic radiator portion
Multiple straight radiating fins, and the multiple straight radiating fins for being located at trunk side are parallel to each other, the root of trunk connects intermediate conduit；
Several have been evenly arranged on the opposite side of two adjacent dendritic heat-sink units for fixing bar shaped magnet block
Groove, the quantity of the number of recesses and bar magnet block matches；
The length of bar magnet block is between the depth of groove and two neighboring dendritic heat-sink unit of each dendritic heat-sink unit
The sum of pore width.
2. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that described dendritic scattered
Hot cell further includes single branch heat dissipation straight fins, and single branch heat dissipation straight fins are located between two dendritic radiator portions, and single branch heat dissipation
Straight fins are parallel with the adjacent straight radiating fin of dendritic radiator portion side, and spacing is equal；The one of single branch heat dissipation straight fins
End is directly connected to intermediate conduit.
3. the heavy duty detergent electric heater according to claim 2 based on magnetic Nano fluid, which is characterized in that dendritic heat dissipation is single
The material of the straight radiating fin of member and single branch heat dissipation straight fins is aluminum alloy materials, each fin with a thickness of 1mm, it is dendritic to dissipate
The entire length of hot cell is 100-110mm, width 65-75mm, is highly 470-520mm, and two neighboring dendritic heat dissipation is single
Spacing between member is 5-10mm.
4. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that described dendritic scattered
In hot cell be located at front and back sides on straight radiating fin between spacing be greater than be located at left and right side on straight radiating fin it
Between spacing.
5. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that be located at front and back side
The spacing between straight radiating fin on face is 1.1~1.5 times of the spacing between the straight radiating fin on left and right side.
6. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that the spiral shape
The length of fin electric heating body is the 2/3~3/4 of lower section duct length.
7. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that helical fin
The diameter 10-15mm of electric heating body, length 450-500mm, fin height 2-5mm, fin spacing 5-10mm.
8. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that the bar shaped magnetic
Iron block is cuboid magnet block, and material is the black magnet of ferrite, and the polar orientation of neighbouring bar magnet block is identical, item
The width of shape magnet block and the width of dendritic heat-sink unit match, highly consistent with the groove length on dendritic heat-sink unit.
9. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that the abnormity magnetic
Iron block is made of two symmetrical structures, and semi-circular recesses, the semicircle of two symmetrical structures are provided on each symmetrical structure
Groove just constitutes a cylinder shape groove, the size and the caliber phase of top pipeline or lower section pipeline of the cylinder shape groove
Match, two symmetrical structures pass through magnetic-adsorption together.
10. the heavy duty detergent electric heater according to claim 1 based on magnetic Nano fluid, which is characterized in that the magnetism
Nano-fluid is Fe3O4/ hydromagnetic nano-fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810982466.4A CN109373427A (en) | 2018-08-27 | 2018-08-27 | A kind of heavy duty detergent electric heater based on magnetic Nano fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810982466.4A CN109373427A (en) | 2018-08-27 | 2018-08-27 | A kind of heavy duty detergent electric heater based on magnetic Nano fluid |
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| CN109373427A true CN109373427A (en) | 2019-02-22 |
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