CN109373579A - Cotton air duct electric heating tube fixed structure and hot-blast stove - Google Patents
Cotton air duct electric heating tube fixed structure and hot-blast stove Download PDFInfo
- Publication number
- CN109373579A CN109373579A CN201811474318.8A CN201811474318A CN109373579A CN 109373579 A CN109373579 A CN 109373579A CN 201811474318 A CN201811474318 A CN 201811474318A CN 109373579 A CN109373579 A CN 109373579A
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- China
- Prior art keywords
- heating tube
- electric heating
- air duct
- hot
- fixing sleeve
- 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.)
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- 238000005485 electric heating Methods 0.000 title claims abstract description 89
- 229920000742 Cotton Polymers 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 239000011159 matrix material Substances 0.000 claims abstract description 26
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 14
- 229910052799 carbon Inorganic materials 0.000 description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 235000019353 potassium silicate Nutrition 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 235000019795 sodium metasilicate Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
Abstract
The invention discloses a kind of cotton air duct electric heating tube fixed structure and hot-blast stoves, wherein, cotton air duct electric heating tube fixed structure is provided with the datum hole of given quantity in the side panel or be mounted on that hot-blast stove gives on the matrix part assembled on the given side panel, fixing sleeve is installed on datum hole, fixing sleeve, which is used as, determines component, even the service life of matrix part or side panel is influenced smaller using welding between fixing sleeve and datum hole.Interior positioning tackling has inner end positioning region, outer positioning sleeve has external screw thread, electric heating tube penetrates fixing sleeve from inner end, until inner end positioning region, then realize and lock that this kind of assembling structure belongs to removable structure, not only replace high-efficient using screw thread and the externally threaded cooperation, and fixing sleeve is not damaged, the thermal insulation layer of hot-blast stove will not be damaged.Locking based on screw thread is also easy to form sealing, can guarantee the relative reliability of sealing.
Description
Technical field
The present invention relates to a kind of cotton air duct electric heating tube fixed structures, and the invention further relates to one kind to have the cotton air duct
The hot-blast stove of electric heating tube fixed structure.
Background technique
Cotton processing equipment has certain requirement to the water content of cotton, when cotton water content is relatively high, needs
Hot-air seasoning is carried out to it.The capital equipment that cotton air duct electric heater, i.e. hot-blast stove are current drying cotton, and cotton wind
Electrical heating elements used in road electric heater are electric heating tubes.
For convenience of description, cotton air duct is described with the addressed cotton air duct electric heating tube fixed structure of associated exemplary of the present invention
The basic structure of electric heater.Fig. 1 show a kind of structural schematic diagram of cotton air duct electric heater (one kind of hot-blast stove),
Substantially be in cuboid body structure, determine front and back panel in airflow direction (arrow directions), wherein rear panel equipped with into
Air hose 6, front panel are equipped with discharge pipe (being not shown in the figure, be generally oppositely arranged with blast pipe 6).A work in two sides panel 4
To install panel, for installing electric heating tube 1, add due to needing to install a certain number of electricity on a cotton air duct electric heater
Therefore heat pipe 1 usually requires the multiple terminal boxes 3 of setting, on selected side panel 4 with the wiring for electric heating tube 1.
Since 1 one end of electric heating tube is fixed on side panel 4, the other end overhangs into furnace, and in Fig. 1, electric heating tube 1 is consolidated
Fixed end will receive torque caused by 1 ontology gravity of electric heating tube, which seals and fixes.And cotton air duct electric heating
The single tube power of the used electric heating tube 1 of device is relatively large, and in other words, individual is relatively large, and the corresponding weight of monomer is relatively
Greatly, the torque of generation also can be bigger, therefore, at present on the electric heater of cotton air duct between electric heating tube 1 and selected side panel 4
Connection generally use welding.Welding has relatively high bonding strength, and leakproofness there will not be problem.However, welding
Belong to non-disconnectable connection, electric heating tube 1 belongs to vulnerable part, when replacing electric heating tube 1, needs to destroy electric heating tube with such as grinding wheel
With the weldering body between side panel 4, low efficiency is not only replaced, but also welding will lead to metal denaturation, influence cotton air duct electric heater
Whole service life.In addition, big calorimetric can be generated when welding, can not be arranged on the side panel 4 of equipped electric heating tube heat-insulated
Layer, heat waste are relatively large.
Chinese patent literature CN207006555U discloses a kind of Automatic-temperature hydro-thermal wind furnace, with Hot-blast Heating case
Body, the side of the Hot-blast Heating cabinet are equipped with air draft lock, and equally distributed carbon crystal heating tube is equipped in Hot-blast Heating cabinet.
The 20th section of its specification has further clarified assembling structure of the carbon crystal heating tube on Hot-blast Heating cabinet, and specifically carbon crystal heats
The bottom end of pipe is equipped with heat-insulated pedestal, and carbon crystal heating tube is mounted on Hot-blast Heating cabinet by heat-insulated pedestal.From patent text
Do not see how heat-insulated pedestal is assemblied in Hot-blast Heating cabinet in offering, it can be seen that carbon crystal heating tube passes through heat-insulated base from its figure
Seat is installed in groups, and carbon crystal heating tube monomer dismoutability has no way of judging.In this field, as previously mentioned, carbon crystal heating tube generally passes through
Welding structure is mounted on heat-insulated pedestal, is then mounted on such as Hot-blast Heating cabinet as an assembly, thus there is
The difficult problem of carbon crystal heating tube monomer replacement.
Chinese patent literature CN207407616U discloses a kind of heated-air drying equipment, pacifies on the top plate of apparatus casing
A heating tube is filled, heating tube individual is smaller, and installs by the way of pendency, will not generate torque.Judge from its figure,
Heating tube is integrated with seat board, and heating tube may be also mounted on a seat board using welding manner, the wiring of heating tube
Column is leant out from the upper surface of seat board, and seat board is fixedly mounted on the top plate of shell, whereby it is found that if using cluster heating tube
Assembling structure, those skilled in the art has motivation that multiple heating tubes are fixedly mounted on a seat board, but fixed form is still
Traditional welding structure can be used.
Summary of the invention
The object of the present invention is to provide one kind under conditions of meeting assembly reliability and sealing performance, maintainable
Also relatively good cotton air duct electric heating tube fixed structure.
Embodiment according to the present invention provides a kind of cotton air duct electric heating tube fixed structure, for electric heating tube in heat
Assembly on wind furnace, hot-blast stove give side panel on or be assemblied in the given side panel matrix part on be provided with it is given
The datum hole of quantity；
It provides and is embedded in datum hole with the one-to-one fixing sleeve of datum hole, the fixing sleeve, form interference between datum hole and connect or weld company
It connects, fixing sleeve is inside and outside corresponding to hot-blast stove and has inner end and outer end；
Electric heating tube, load segment of the electric heating tube on hot-blast stove are set with interior positioning sleeve and outer positioning sleeve；Wherein, outer positioning
Set is partly inserted in fixing sleeve and has external screw thread, and interior positioning sleeve is partly inserted in fixing sleeve and has inner end positioning region, with fixed
Inner wall of the position in given side panel or matrix part；
The nut with external screw thread cooperation is provided, to lock electric heating tube from outer end.
Above-mentioned cotton air duct electric heating tube fixed structure, optionally, the interior positioning sleeve are that inner end has the default of flange
Position set；
Wherein, flange constitutes the inner end positioning region；
Sealing ring is equipped between flange and the inner wall of given side panel or matrix part.
Optionally, sealing ring is equipped between nut and the outside wall surface of given side panel or matrix part.
Optionally, described matrix component be a rectangular shape box body, the box body have for the box body be assemblied in
Substrate and the inner panel opposite with substrate on fixed side panel；
Correspondingly, substrate and inner panel contraposition aperture form the datum hole；
Thermal insulation layer is formed filled with thermal insulation material in box body.
Optionally, substrate is greater than inner panel and rectangular slab similar with inner panel, and the part gone out greatly forms fixed flange, this is solid
Flange is determined equipped with screw hole；
Correspondingly, determine that remaining five plate of box body form protrusion of the self-reference substrate to convex；
Given side panel is provided with the pilot hole being embedded in just for protrusion.
Optionally, a riser vertical with substrate in remaining five plate extends internally given length；
One support plate for being fixed on aforementioned riser end is provided, is provided with supported hole in the support plate, the support for electric heating tube.
Optionally, the given length is electric heating tube into furnace 0.62 ~ 0.75 times of cantilevered length.
Optionally, multiple lines and multiple rows electric heating tube is equipped on each box body, and line number is 10 ~ 14 rows, columns is 4 ~ 6 column.
Optionally, on the outside of substrate at set a distance be equipped with terminal box；
Correspondingly, the bottom plate of terminal box towards substrate is provided with the via hole penetrated for the electrode of electric heater.
Embodiment according to the present invention additionally provides a kind of hot wind for having aforementioned cotton air duct electric heating tube fixed structure
Furnace.
Embodiment according to the present invention is assembled in the side panel or be mounted on the given side panel that hot-blast stove gives
Matrix part on be provided with the datum hole of given quantity, fixing sleeve is installed on datum hole, fixing sleeve as determining component, fixing sleeve with
Even using welding between datum hole, also can only generate primary welding influences, to the service life shadow of matrix part or side panel
Sound is smaller.In turn, electric heating tube is used for the load segment that assembles on hot-blast stove and sets that there are two positioning sleeves, i.e., in positioning sleeve and outer fixed
Position set, wherein interior positioning tackling has inner end positioning region, outer positioning sleeve has external screw thread, and electric heating tube penetrates fixing sleeve from inner end,
Until inner end positioning region, then realizes and locks that this kind of assembling structure belongs to removable knot using screw thread and the externally threaded cooperation
Structure, not only replaces high-efficient, but also does not damage fixing sleeve, will not damage the thermal insulation layer of hot-blast stove.Locking based on screw thread
It is easily formed sealing, can guarantee the relative reliability of sealing.
Detailed description of the invention
Fig. 1 is a kind of cotton air duct electric heater structure schematic diagram.
Fig. 2 is a kind of electric heating tube boundling assembly schematic view of the front view.
Fig. 3 is the portion the A enlarged drawing of Fig. 2.
Fig. 4 is a kind of heating-pipe structure schematic diagram.
Fig. 5 is heating tube boundling schematic perspective view.
In figure: 1. electric heating tubes, 2. penetration pipes, 3. terminal boxes, 4. side panels, 5. top panels, 6. blast pipes, 7. wiring
Piece, 8. binding posts, 9. electric heating ontologies, 10. cooling fins, 11. fixed plates, 12. support plates, 13. rear sides, 14. outer positioning sleeves,
15. nut, 16. sealing rings, 17. bottom plates, 18. fixing sleeves, on the outside of 19. furnaces, 20. substrates, 21. thermal insulation layers, 22. inner panels, in 23.
Positioning sleeve, 24. sealing rings, 25. furnaces inside.
Specific embodiment
Fig. 1 show cotton air duct electric heater, is distinguished in a manner of Party A, belongs to electrically heated hot-blast stove, in Fig. 1, with
On the basis of orientation guided by tip, front panel and rear panel are determined, wherein blast pipe 6, front panel are installed on rear panel
On discharge pipe is installed.
The shell of hot-blast stove be located at airflow direction two sides panel be side panel 4, separately equipped with top panel 5 and with top panel 5
Opposite bottom panel, generally forms body structure.
Well known, for cabinet, it is outer with interior opposite direction that the part that shell is enclosed, which is interior,.
In addition, the shell about hot-blast stove, often has biggish thickness, mainly it is with inner housing and shell
Body, and the heat-barrier material being filled between inner and outer shell, form thermal insulation layer whereby, to reduce heat waste.
In Fig. 1, electric heating tube 1 is mounted on side panel 4, and whole to overhang into hot-blast stove, this kind of structure is convenient for assembly,
Conducive to wiring.
Fig. 2 and 3 shows a kind of cotton air duct electric heating tube fixed structure, for electric heating tube 1 in hot-blast stove side panel 4
On assembly, in figure, electric heating tube 1 is mounted on matrix box, and matrix box is welding box body, is had a substrate 20, is used for
Matrix box and the outside wall surface of side panel 4 are directly assembled.
In some embodiments, electric heating tube 1 can be directly installation base body with side panel 4, and assembly process process is not so good as to deposit
Assembly process process in matrix parts such as matrix boxes.
Since the hot wind flow velocity for drying cotton is larger, the thermal efficiency of hot-blast stove should be relatively high, and therefore, institute's distribution adds
The quantity of heat pipe 1 is relatively more, so as to which the gas flowed through is heated to scheduled temperature in a relatively short period of time.
In general, the temperature of hot-blast stove air outlet is at 150 DEG C or so, the surface temperature of electric heating tube 1 is usually less than
250℃。
Correspondingly, hot-blast stove give side panel 4 on or the matrix part above-mentioned for being assemblied in the given side panel 4
On be provided with the datum hole of given quantity, datum hole is the datum hole for installing electric heating tube 1, since electric heating tube 1 is generally U-shaped structure, one
Branch electric heating tube 1 is adapted to two datum holes.
In an embodiment of the present invention, electric heating tube 1 is not directly installed on datum hole, but is installed on datum hole in advance solid
Surely cover 18, fixing sleeve 18 and datum hole correspond, and fixing sleeve 18 is inserted into datum hole, in some embodiments, fixing sleeve 18 with
Interference connection is formed between datum hole.
Interference connection is also known as interference fitted, and generates engaging force by interference, to form reliable fixed and sealing, this kind
Structure will not damage datum hole and provide the side panel 4 of datum hole relative to welding, the disadvantage is that assembly difficulty compare it is larger, to solid
Surely the requirement on machining accuracy of set 18 and datum hole is relatively high.
In some embodiments using being welded to connect between fixing sleeve 18 and datum hole, with this condition, to fixing sleeve 18 and base
The requirement on machining accuracy in hole is relatively low, and there are gap between fixing sleeve 18 and datum hole, assembly difficulty is low.Exist in fixing sleeve 18
After assembling in place on datum hole, girth joint is formed at the both ends of datum hole, to form reliable connection.
It is inner end that fixing sleeve 18, which is located at one end on the inside of hot-blast stove, and one end on the outside of hot-blast stove is outer end, can be recognized
To be connection casing, the electrode tip of electric heating tube 1 is drawn, binding post 8 shown in Fig. 2 is formed.
It is understood that the outer surface of the electric heating tube ontology 9 of electric heating tube 1 has insulating layer, so as in example
It is assembled on the side panel as made of steel plate, without generating short circuit.
In addition, it is all heat part on the whole that electric heating tube ontology 9, which is not, can may include as supporter and electric conductor
Part, heat unit be divided into resistance wire or other electricity heating devices.
About electric heating tube 1, some cooperates with fixing sleeve 18, the portion for claiming electric heating tube 1 and fixing sleeve 18 to cooperate
It is divided into load segment.
Correspondingly, load segment of the electric heating tube 1 on hot-blast stove is set with interior positioning sleeve 23 and outer positioning sleeve 14；Interior positioning
It can be connected using interference between set 23 and outer positioning sleeve 14 and electric heating tube 1, it can also be using welding.
Interior positioning sleeve 23 is relatively short, and preferred length 29mm, outer positioning sleeve 14 is relatively long, preferably 44mm.
Interior positioning sleeve 23 and 14 outer diameter of outer positioning sleeve are 18mm, and corresponding nut 15 is the nut of M18.
Since interior positioning sleeve 23 and outer positioning sleeve 14 are cannula structures, steel pipe socket can be, cost is very low, Ke Yilian
It is scrapped together with the electric heating tube 1 replaced.
For the reliability for guaranteeing connection, preferred weld is connected between interior positioning sleeve 23 and outer positioning sleeve 14 and electric heating tube 1.
It is understood that electric heating tube 1 is packed into from the inner end of fixing sleeve 18, therefore, the outer diameter of outer positioning sleeve 14 is less than
The internal diameter of fixing sleeve 18.
Wherein, outer positioning sleeve 14 is partly inserted in fixing sleeve 18, in favor of positioning and sealing.And outer positioning sleeve 14 is at least
Part outside fixing sleeve 18 forms thread segment, it is to be understood that the Major Diam of thread segment is less than the interior of fixing sleeve 18
Diameter.
Correspondingly, interior positioning sleeve 23 is also partly inserted in fixing sleeve 18, in favor of positioning and sealing.Interior positioning sleeve 23 it is interior
End is equipped with inner end positioning region, so that set to inner end positioning region stops after electric heating tube 1 is packed into from the inner end of fixing sleeve 18, thus real
Positioning of the positioning sleeve 23 in the inner wall surface side of given side panel 4 or matrix part in existing.
Further, in the outside of hot-blast stove or the outside fitting nut 15 of matrix part, that is, provide with external screw thread or
The nut 15 for saying thread segment cooperation locks electric heating tube 1 from outer end.
If certain electric heating tube 1 damages, after removing contact conductor, nut 15 is loosened, the constraint of electric heating tube 1 is basic
It releases, electric heating tube 1 can be removed from inner end.The electric heating tube 1 more renewed is locked using nut 15, replaces efficiency
Height will not damage datum hole or fixing sleeve 18.
Due to interference connection between fixing sleeve 18 and datum hole or weld, the assembly sealing between fixing sleeve 18 and datum hole
There is no problem for property.And the assembly leakproofness between electric heating tube 1 and fixing sleeve 18, it is also easy to guarantee, the reason is that, routinely, side
Panel 4 has certain thickness, and therefore, fixing sleeve 18 has certain length, even the electric heating tube ontology of electric heating tube 1
There are gaps between 9 and fixing sleeve 18, as flow resistance is bigger, leakage rate also can be smaller.And for interior 23 He of fixing sleeve
Outer positioning sleeve 14, sleeve body portion can form sealing cooperation between fixing sleeve 18, such as in interior fixing sleeve 23 and outer positioning sleeve
Band or airtight and watertight padding are wound on 14, sealing is also easily guaranteed that very much.
In addition, can also be sealed using waterglass for pipe sleeve part, i.e., on interior positioning sleeve 23 and outer positioning sleeve 14
Waterglass is adhered to, is then installed, forms reliable sealing after waiting waterglass to solidify.
Waterglass is the aqueous solution of sodium metasilicate, and sodium metasilicate is also known as sodium silicate, is a kind of water-soluble silicate, and it is glutinous to belong to mineral
Mixture can be used for the sealing at interface.
Although the fusing point of sodium metasilicate is 1050 DEG C, aqueous solution, due to forming hydrate, operating temperature is high, i.e. water
The operating temperature of glass is higher than 1200 DEG C, as previously mentioned, the leaving air temp of discharge pipe is about at 150 DEG C, the temperature of electric heating tube 1 is about
It is 250 DEG C, far below the operating temperature of waterglass, can satisfy the sealing of interior positioning sleeve 23.Correspondingly, more it is able to satisfy outer positioning
The sealing of set 14.
Further, as shown in figure 4, as it can be seen that interior positioning sleeve of the interior positioning sleeve 23 for inner end with flange, convex in figure
Edge cannot be only used for positioning, and since it is with biggish joint surface, can also construct sealing surface.
When as positioning, flange constitutes the inner end positioning region.
When as sealing matrix, sealing ring 24 is equipped between the inner wall of flange and given side panel 4 or matrix part.
If sealed using sealing ring 24, matched 24 preferably polytetrafluoroethylene sealing ring of sealing ring or modified polytetrafluoroethyl-ne
Alkene sealing ring, the operating temperature of polytetrafluoroethylene (PTFE) can achieve 250 DEG C, meet technical requirements of the invention.
There is stronger high temperature resistance relative to polytetrafluoroethylene (PTFE) for modified Teflon.
In structure shown in Fig. 4, sealing ring is equipped between the outside wall surface of nut 15 and given side panel 4 or matrix part
16.Due to the outer surface of such as side panel 4, temperature is relatively low, is not much different with environment temperature, which can be with
Use conventional rubber ring.
Preferably, flat shim is equipped between nut 15 and sealing ring 16.
In some embodiments, elastomeric pad can also be set between nut 15 and flat shim.
In structure shown in Fig. 3, the position where outer positioning sleeve 14 is at terminal box 3, between terminal box 3 and side panel 4
There are certain distance, the temperature at terminal box 3 is lower.
Correspondingly, as shown in Fig. 1 ~ 3, fixing sleeve 18 has the part exposed from the outside of such as side panel, to facilitate wiring
The assembly of box 3 and wiring.
Fixing sleeve 18 has certain rigidity, and adapts to a terminal box 3, there is more fixing sleeves 18, multiple fixations
Set 18 can dock wire box 3 and provide intensity relatively high support.
About described matrix component, its box body for constituting a rectangular shape, is up and down in figure in a preferred embodiment
It is relatively long, the relatively small box body of width and thickness.Correspondingly, which, which has, is assemblied in given side for the box body
Substrate 20 and the inner panel 22 opposite with substrate 20 on plate 4 determine a cavity in adaptation side plate and upper and lower bottom plate.
Correspondingly, substrate 20 and inner panel 22 align aperture and form the datum hole.
Thermal insulation layer 21 is formed filled with thermal insulation material in box body.
In structure shown in Fig. 1 ~ 3, substrate 20 be greater than inner panel 22 and rectangular slab similar with inner panel 22, greatly go out part
Fixed flange is formed, which is equipped with screw hole, so as to use screw that substrate 20 is fixed on side panel 4.
Here it is similar for geometry it is similar, and inner panel 22 and substrate 20 concentrically axis.
Correspondingly, determine that remaining five plate of box body form protrusion of the self-reference substrate 20 to convex.
In turn, given side panel 4 is provided with the pilot hole being embedded in just for protrusion, this kind of structure is conducive to sealing, and
With extraordinary supporting role.
Further, since side panel 4 is due to heat insulation structural to be arranged, ontology is also thicker, the thickness of protrusion and side
The thickness of panel 4 can be consistent.
In structure shown in Fig. 2, a riser vertical with substrate 20 extends internally given length in remaining five plate, is formed
Fixed plate 11 shown in Fig. 2.
Correspondingly, a support plate 12 for being fixed on aforementioned riser end is provided, supported hole is provided in the support plate 12, is used for
The support of electric heating tube 1 can effectively reduce the thermal flexibility deformation of electric heating tube 1.
Preferably, the given length is electric heating tube 1 into furnace 0.62 ~ 0.75 times of cantilevered length.
As shown in figure 5, being equipped with multiple lines and multiple rows electric heating tube 1 on each box body, and line number is 10 ~ 14 rows, columns is 4 ~ 6
Column, multiple electric heating tubes 1 can construct an assembly based on box body, which assembles on side panel 4 again, assembly efficiency
Height, consistency are also relatively good.
In addition, in the outside of substrate 20 to being equipped with terminal box 3 at set a distance；
Correspondingly, the bottom plate 17 of terminal box 3 towards substrate 20 is provided with the via hole penetrated for the electrode of electric heater 1.
As it can be seen that the opened via hole of bottom plate 17 of terminal box 3 is sleeved on the outer end of fixing sleeve 18 in the exemplary structure of Fig. 3.
Claims (10)
1. a kind of cotton air duct electric heating tube fixed structure, for assembly of the electric heating tube on hot-blast stove, which is characterized in that
On the given side panel of hot-blast stove or it is assemblied in the datum hole that given quantity is provided on the matrix part of the given side panel；
It provides and is embedded in datum hole with the one-to-one fixing sleeve of datum hole, the fixing sleeve, form interference between datum hole and connect or weld company
It connects, fixing sleeve is inside and outside corresponding to hot-blast stove and has inner end and outer end；
Electric heating tube, load segment of the electric heating tube on hot-blast stove are set with interior positioning sleeve and outer positioning sleeve；Wherein, outer positioning
Set is partly inserted in fixing sleeve and has external screw thread, and interior positioning sleeve is partly inserted in fixing sleeve and has inner end positioning region, with fixed
Inner wall of the position in given side panel or matrix part；
The nut with external screw thread cooperation is provided, to lock electric heating tube from outer end.
2. cotton air duct electric heating tube fixed structure according to claim 1, which is characterized in that the interior positioning sleeve is interior
Hold the interior positioning sleeve with flange；
Wherein, flange constitutes the inner end positioning region；
Sealing ring is equipped between flange and the inner wall of given side panel or matrix part.
3. cotton air duct electric heating tube fixed structure according to claim 1 or 2, which is characterized in that nut and given
Sealing ring is equipped between the outside wall surface of side panel or matrix part.
4. cotton air duct electric heating tube fixed structure according to claim 1, which is characterized in that described matrix component is one
The box body of rectangular shape, which, which has, is assemblied in substrate on given side panel and opposite with substrate for the box body
Inner panel；
Correspondingly, substrate and inner panel contraposition aperture form the datum hole；
Thermal insulation layer is formed filled with thermal insulation material in box body.
5. cotton air duct electric heating tube fixed structure according to claim 4, which is characterized in that substrate is simultaneously greater than inner panel
Rectangular slab similar with inner panel, the part gone out greatly form fixed flange, which is equipped with screw hole；
Correspondingly, determine that remaining five plate of box body form protrusion of the self-reference substrate to convex；
Given side panel is provided with the pilot hole being embedded in just for protrusion.
6. cotton air duct electric heating tube fixed structure according to claim 5, which is characterized in that in remaining five plate with substrate
A vertical riser extends internally given length；
One support plate for being fixed on aforementioned riser end is provided, is provided with supported hole in the support plate, the support for electric heating tube.
7. cotton air duct electric heating tube fixed structure according to claim 6, which is characterized in that the given length is electricity
Heating tube is into furnace 0.62 ~ 0.75 times of cantilevered length.
8. cotton air duct electric heating tube fixed structure according to claim 4, which is characterized in that be equipped on each box body
Multiple lines and multiple rows electric heating tube, and line number is 10 ~ 14 rows, columns is 4 ~ 6 column.
9. the cotton air duct electric heating tube fixed structure according to claim 4 or 8, which is characterized in that given on the outside of substrate
Terminal box is equipped at set a distance；
Correspondingly, the bottom plate of terminal box towards substrate is provided with the via hole penetrated for the electrode of electric heater.
10. the hot-blast stove that one kind has any cotton air duct electric heating tube fixed structure of claim 1 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474318.8A CN109373579A (en) | 2018-12-04 | 2018-12-04 | Cotton air duct electric heating tube fixed structure and hot-blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474318.8A CN109373579A (en) | 2018-12-04 | 2018-12-04 | Cotton air duct electric heating tube fixed structure and hot-blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109373579A true CN109373579A (en) | 2019-02-22 |
Family
ID=65375609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811474318.8A Pending CN109373579A (en) | 2018-12-04 | 2018-12-04 | Cotton air duct electric heating tube fixed structure and hot-blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109373579A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264942A (en) * | 2022-08-11 | 2022-11-01 | 江苏捷达粮食设备有限公司 | Grain is dried and is used hot-blast generating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW408900U (en) * | 1999-01-21 | 2000-10-11 | Jiang Jau Chi | Improved electrical conductance baton |
| CN102098816A (en) * | 2009-12-14 | 2011-06-15 | 霍特塞特电热元件和附件有限责任公司 | Electric cartridge heater with connecting circuit |
| CN102818649A (en) * | 2012-08-20 | 2012-12-12 | 莱芜钢铁集团有限公司 | Vault thermocouple and hot blast stove |
| CN209214108U (en) * | 2018-12-04 | 2019-08-06 | 山东天鹅棉业机械股份有限公司 | Cotton air duct electric heating tube fixed structure and hot-blast stove |
-
2018
- 2018-12-04 CN CN201811474318.8A patent/CN109373579A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW408900U (en) * | 1999-01-21 | 2000-10-11 | Jiang Jau Chi | Improved electrical conductance baton |
| CN102098816A (en) * | 2009-12-14 | 2011-06-15 | 霍特塞特电热元件和附件有限责任公司 | Electric cartridge heater with connecting circuit |
| CN102818649A (en) * | 2012-08-20 | 2012-12-12 | 莱芜钢铁集团有限公司 | Vault thermocouple and hot blast stove |
| CN209214108U (en) * | 2018-12-04 | 2019-08-06 | 山东天鹅棉业机械股份有限公司 | Cotton air duct electric heating tube fixed structure and hot-blast stove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264942A (en) * | 2022-08-11 | 2022-11-01 | 江苏捷达粮食设备有限公司 | Grain is dried and is used hot-blast generating device |
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