CN208532882U - A kind of bell furnace of volume inner core multi-point Temperature Collection - Google Patents
A kind of bell furnace of volume inner core multi-point Temperature Collection Download PDFInfo
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- CN208532882U CN208532882U CN201820888568.5U CN201820888568U CN208532882U CN 208532882 U CN208532882 U CN 208532882U CN 201820888568 U CN201820888568 U CN 201820888568U CN 208532882 U CN208532882 U CN 208532882U
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Abstract
The utility model discloses a kind of bell furnaces of volume inner core multi-point Temperature Collection, including table, furnace plate, bonnet, it is provided with projection piece on table, is provided with air guide channel between projection piece, furnace plate, which is put, is located at projection piece top, and furnace plate is provided centrally with the airflow circulating through-hole communicated with air guide channel；Bonnet sealing be located on the table of furnace plate outer rim；Table center is pre-buried to be provided with vertical temperature-measuring casing, temperature-measuring casing passes through airflow circulating through-hole and its top protrudes from furnace plate top surface, the bottom end of temperature-measuring casing and table are tightly connected, thermocouple is equipped in temperature-measuring casing, the working end of thermocouple protrudes from the top of temperature-measuring casing, and the bottom end of temperature-measuring casing is connected by the fixing piece of installation part and thermocouple.The bell furnace of the volume inner core multi-point Temperature Collection pre-buried temperature-measuring casing in table, thermometric is in the process due to the position-limiting action of temperature-measuring casing, and the influence amplitude of fluctuation of the thermode heat-treated cavity circulation air-flow of thermocouple is smaller, and temperature-measuring results are more accurate.
Description
Technical field
The utility model relates to coil of strip heat treatment equipment fields, and in particular to a kind of bell-type of volume inner core multi-point Temperature Collection
Furnace.
Background technique
High annealing is the critical process for determining orientation silicon steel surface quality superiority and inferiority, and orientation silicon steel high-temperature annealing process is main
It is completed in bogie furnace or bell furnace.
Bell furnace is mainly made of outer cover, inner cover and table three parts in the prior art, and difference according to the technological requirements has
A little bell furnaces do not have inner cover, or install cooling dome additional on the basis of three parts.Table is mainly made of steel construction, masonry, main
Play a part of load-bearing and heat preservation；Inner cover be located in above table, and its role is to will be locating for flow of flue gas space and workpiece
The controlled atmosphere flowing space separate；Outer cover equally be located in above table and be coated on the outside of inner cover, usually set on outer cover
It is equipped with pressure relief vent, the pressure in seal chamber being combined into using the pressure release valve regulation inner cover, outer cover and the table that are connected with pressure relief vent
By force, so achieve the purpose that adjust in cover in the hot processing chamber that table encloses protect air pressure it is strong.Also cooperation is set in bell furnace
It is equipped with heating element and protective gas introduces component, heating element is generally arranged on table, and there are also heating element settings
It is arranged on outer cover, or simultaneously；Protective gas is introduced into the connection gas source of the protection tracheae in component and hot processing chamber.
Heating of the coil of strip in furnace, heat preservation, cooling procedure need strict temperature control to change, bell furnace in the prior art
When for silicon steel coil heat treatment, in the setting of temperature measuring equipment and temperature measuring point such as CN202430267U and CN102605166A
Described, in previous technical solution, thermocouple measured temperature result is saved via wire transmission to high-temperature temperature recorder, in order to
Guarantee that the operating temperature of high-temperature temperature recorder in its tolerance range, high-temperature temperature recorder is arranged in water tank, water tank
It is further disposed in incubator, and incubator is arranged on coil of strip.In latter technique scheme, it will be inserted while crimping coil of strip
Item is involved in together between the steel band of adjacent layer, obtains the temperature parameter of coil of strip core.But in actual production, silicon steel processing temperature
Degree is 1200 DEG C or so, and majority of material is in soft state under the conditions of this temperature, thus the conducting wire in previous scheme and
Cutting in latter scheme is not suitable under the conditions of case temperature, and for the silicon steel of thinner thickness, 1200 DEG C of heat
The insertion of cutting inevitably results in steel band and occurs that local heating is uneven, airflow on surface local distribution is unequal asks under treatment conditions
Topic, i.e. steel band at cutting and the thermal effectiveness of other non-cutting contact portions are different.
Therefore, it is necessary to be improved to silicon steel sheet heat treatment in the prior art with bell-type furnace structure.
Utility model content
The purpose of the utility model is to overcome defect existing in the prior art, a kind of volume inner core multi-point temperature is provided and is adopted
The bell furnace of collection, the pre-buried temperature-measuring casing in table, the working end of thermocouple is under the guiding role of temperature-measuring casing to thermometric cover
Tube top end extends, and thermocouple location is stablized, and temperature measurement accuracy is high.
Realize above-mentioned technical effect, the technical solution of the utility model are as follows: a kind of bell-type of volume inner core multi-point Temperature Collection
Furnace, including table, furnace plate, bonnet are provided with projection piece on table, air guide channel are provided between projection piece, furnace plate, which is put, to be located at
Projection piece top, furnace plate are provided centrally with the airflow circulating through-hole communicated with air guide channel；Bonnet sealing be located in furnace plate outer rim
Table on；
It is characterized in that, table center is pre-buried to be provided with vertical temperature-measuring casing, temperature-measuring casing passes through airflow circulating through-hole
And its top protrudes from furnace plate top surface, the bottom end of temperature-measuring casing and table are tightly connected, and are equipped with thermocouple in temperature-measuring casing, heat
The working end of galvanic couple protrudes from the top of temperature-measuring casing, and the bottom end of temperature-measuring casing is connected by the fixing piece of installation part and thermocouple
It connects.
The effect of temperature-measuring casing is to be oriented to and position that guiding refers to when penetrating thermocouple from furnace bottom, thermocouple
Working end is smoothly penetrated along the lumen of casing, and position be during thermometric, due to need to be passed through in bell furnace hydrogen or
Nitrogen hydrogen mixeding gas is as protection gas, therefore thermometric process needs to overcome the influence of flow perturbation.When table is rest on the ground, need
The melt pit communicated with table bottom centre is set, to guarantee the Maintenance and Repair work of daily thermocouple.
In order to meet the thermometric needs of silicon strip heat treatment, preferred technical solution is that the thermocouple is ceramic thermoelectric
Occasionally armoured thermocouple.Compared with ceramic electric thermo-couple, the advantages of armoured thermocouple, is bent deformation, to adapt to temperature measuring point
Highly.Common, bandwidth is the silicon steel coil of 1000mm, and the thermometric point height for rolling up inner core is usually 0.3~0.4m, and bandwidth is
The silicon steel coil of 700mm, the thermometric point height for rolling up inner core is usually 0.2~0.25m.
The steel coil strip width being heat-treated in bell furnace might not, usually have two kinds of specifications of bandwidth 1000mm and 700mm, and
Pre-buried temperature-measuring casing replacement is cumbersome, in order to which the steel band for making bell furnace be suitable for different width specifications is heat-treated, preferred technology
Scheme is that temperature-measuring casing is composed of the embedded section and at least one extension head and the tail grafting of tubulose, and extension is located at pre-buried
The top of section.Specifically, embedded section is identical with the material of extension in temperature-measuring casing, guarantees embedded section under the high temperature conditions and prolong
The softening degree and degree of thermal expansion of long section are consistent.Conversely, embedded section is different with extension material, the embedded section of grafting and extension
Section is possible to will appear nested problem, i.e., extension is fallen into embedded section lumen or extension falls and covers in embedded section
Periphery.In actual production, the optional range of the material of embedded section and extension is 310S stainless steel, 2848W stainless steel, high temperature resistant pottery
Porcelain.
In order to guarantee that grafting is stablized between extension and embedded section under hot conditions, preferred technical solution is extension
Bottom end be provided with the spliced eye matched with embedded section top or lower layer's extension, the periphery of embedded section or lower layer's extension
It is fixedly installed support ring, the top surface of support ring is in contact with the extension bottom face of layer disposed thereon or clearance fit.Branch
The effect of carrier ring is to prevent extension from falling, and bottom end bearing will not influence the thermal expansion of extension material.
Preferred technical solution is that the top of embedded section and/or the bottom end of extension are provided with gap, gap and extension
And embedded section encloses the thermometer hole being pierced by thermocouple working end is accommodated.The width of thermometer hole is adapted with thermocouple, specifically
, the width and height of thermometer hole are slightly larger than the protection sleeve pipe diameter of thermocouple.
For the ease of multiple thermocouples are arranged in silicon strip volume inner core, to accurately track silicon strip volume inner core different height
Temperature change, preferred technical solution is that the bottom end of temperature-measuring casing is provided with and communicated at least two branch pipes, branch pipe and thermometric cover
The lumen rounding off of pipe；Branch pipe quantity is corresponded with the thermocouple quantity being threaded through in temperature-measuring casing.
In order to guarantee to be tightly connected between furnace body and temperature-measuring casing, heat losses are reduced, preferred technical solution is table
Including substrate and the table ontology being fixed on substrate, temperature-measuring casing is threaded through in substrate and table ontology, temperature-measuring casing
Welded seal is connect between substrate.Specifically, table ontology includes core masonry and the metal-back that is arranged in outside core masonry
Body.
Preferred technical solution is that the outer profile of spliced eye is pyramidal.Pyramidal spliced eye has guiding role, inserts
Termination process is easy for installation, and due to the self weight of extension, connected structure is more stable, and generation extension centre-of gravity shift etc. is avoided to ask
Topic.
Advantages and beneficial effects of the utility model lie in that
The bell furnace of the volume inner core multi-point Temperature Collection pre-buried temperature-measuring casing in table, the thermode of thermocouple is via furnace
The end of platform bottom temperature-measuring casing penetrates, and is pierced by via the thermometer hole on the top nozzle or temperature-measuring casing of temperature-measuring casing,
Due to the position-limiting action of temperature-measuring casing during thermometric, the influence of the thermode heat-treated cavity circulation air-flow of thermocouple is swung
Amplitude is smaller, and temperature-measuring results are more accurate；
The thermode extension elongation of thermocouple can be customized according to the length of temperature-measuring casing and the width of heat treatment silicon strip,
Or the temperature measuring point requirement that bending armoured thermocouple is different.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the bell furnace embodiment 1 of the utility model volume inner core multi-point Temperature Collection；
Fig. 2 is the top view of table in Fig. 1；
Fig. 3 is the cross-sectional view of the bell furnace embodiment 2 of the utility model volume inner core multi-point Temperature Collection；
Fig. 4 is the partial enlarged view of A in Fig. 3；
Fig. 5 is the partial enlarged view of B in Fig. 3；
Fig. 6 is the schematic cross-sectional view on temperature-measuring casing top in embodiment 3；
Fig. 7 is the structural schematic diagram of extension in embodiment 3；
Fig. 8 is the assembling structure schematic diagram of temperature-measuring casing bottom end and thermocouple in embodiment 3.
In figure: 1, table；11, substrate；12, table ontology；2, furnace plate；3, bonnet；4, projection piece；5, air guide channel；6,
Airflow circulating through-hole；7, temperature-measuring casing；71, embedded section；72, extension；8, thermocouple；9, installation part；10, support ring；13, it slits
Mouthful；14, thermometer hole；A, spliced eye.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and cannot be used as a limitation the protection model of limitation the utility model
It encloses.
Embodiment 1
As shown in Figs. 1-2, the bell furnace of the volume inner core multi-point Temperature Collection of embodiment 1, including table 1, furnace plate 2, bonnet
3, projection piece 4 is provided on table 1, air guide channel 5 is provided between projection piece 4, furnace plate 2, which is put, is located at 4 top of projection piece, furnace plate
2 are provided centrally with the airflow circulating through-hole 6 communicated with air guide channel 5；Bonnet 3 seals on the table 1 that be located in 2 outer rim of furnace plate；
1 center of table is pre-buried to be provided with vertical temperature-measuring casing 7, and temperature-measuring casing 7 passes through airflow circulating through-hole 6 and its top protrudes from furnace
2 top surface of plate, the bottom end of temperature-measuring casing 7 and table 1 are tightly connected, and are equipped with thermocouple 8, the work of thermocouple 8 in temperature-measuring casing 7
For the top of temperature-measuring casing 7, the bottom end of temperature-measuring casing 7 is connect by installation part 9 with the fixing piece of thermocouple 8 distal process.
Temperature-measuring casing 7 in embodiment 1 is straight tube-like.The fixing piece of thermocouple is to be arranged in thermocouple set in the prior art
Flange outside protecting pipe has externally threaded bolt shape connector.Installation part in embodiment 1 is flange, and installation part is fixed
It is connected to the bottom end of temperature-measuring casing, installation part flange is bolted with the flange outside thermocouple set protecting pipe.
Using the gap between refractory material filling temperature-measuring casing 7 and table 1 in embodiment 1.
Ceramic electric thermo-couple is used in embodiment 1.
Protrusion in embodiment 1 is fan-shaped protrusion, and actual production convexity role is only that set up furnace plate and have and lead
Gas channel, including but not limited to several divergent shape protrusions of embodiment 1.
Embodiment 2
As in Figure 3-5, embodiment 2 the difference from embodiment 1 is that, temperature-measuring casing 7 is by the embedded section 71 of tubulose and one
The 72 head and the tail grafting of root extension is composed, and extension 72 is located at the top of embedded section 71.
The bottom end of extension 72 is provided with the spliced eye a matched with 71 top of embedded section, and the outer profile of spliced eye a is circle
Cylindricality, the periphery of embedded section 71 are fixedly installed support ring 10,72 bottom of extension of the top surface of support ring 10 and layer disposed thereon
End face is in contact.
Table 1 includes substrate 11 and the table ontology 12 being fixed on substrate, and temperature-measuring casing 7 is threaded through 11 He of substrate
In table ontology 12, welded seal is connected between temperature-measuring casing 7 and substrate 11.
Thermocouple 8 in embodiment 2 is the bent armoured thermocouple of thermode.
Embodiment 3
As shown in figs 6-8, embodiment 3 the difference from example 2 is that, the bottom end of extension 72 is provided with gap 13, slit
Mouth 13 encloses the thermometer holes 14 being pierced by thermocouple working end is accommodated with extension 72 and embedded section.
The bottom end of temperature-measuring casing 7 is provided with and communicated with two branch pipes 15, the lumen of branch pipe 15 and temperature-measuring casing 7 in embodiment 3
Rounding off；Two thermocouples 8 are equipped in temperature-measuring casing 7, two thermocouples 8 are penetrated via two branch pipes 15 respectively, wherein
The thermode of one thermocouple 8 is pierced by via 72 top nozzle of extension, and the thermode of another thermocouple 8 is worn via thermometer hole 14
Out.
The outer profile of spliced eye a is pyramidal.
Further, also two, three extensions 72 can be set gradually on 71 top of embedded section, to increase temperature measuring point.
Furnace body installation process before heat treatment are as follows: temperature-measuring casing 7 is embedded in masonry when assembling table 1, together
When control temperature-measuring casing 7 protrude from the height of table 1, temperature-measuring casing 7 and building is filled out between intracorporal building block using the material of heatproof
It fills, to guarantee the sealed connection between temperature-measuring casing 7 and masonry；The bottom end welding of 1 temperature-measuring casing 7 of embodiment is provided with installation part
Flange protrudes into the thermode of thermocouple 8 in temperature-measuring casing 7, and persistently protrudes into until the prominent thermometric of the thermode of thermocouple 8
Then the flange outside 8 protection sleeve pipe of thermocouple is bolted with installation part flange for 7 top of casing.
In order to need to adapt to the silicon strip of different wide cuts, common embedded section 71 protrudes from the height of furnace plate in embodiment 2
For 200~250mm, the length of extension 72 is 6~15mm.Embedded section is arranged in furnace body installation process in accordance with the above-mentioned embodiment 1
71, and by embedded section 71 and substrate welded seal, weld seam is usually located at the lower surface of substrate, and armouring heat is worn in embedded section 71
Galvanic couple, the thermode of armoured thermocouple protrude from the height of embedded section 71 in 10~20mm.
Embodiment 2 needs to wear extension 72 in use, if rolling up heat treatment for the silicon strip that wide cut is 1000mm
Outside 8 nose section of thermocouple and extension 72 is made to be socketed in 71 top of embedded section, the thermode of thermocouple 8 still protrudes from extension
72 top nozzle bends the thermode of thermocouple 8, or even state, the height for meeting thermode of thermode is kept to exist
In thermometric point range；If rolling up heat treatment for the silicon strip that wide cut is 700mm, need to unload extension 72, bends armour
Thermocouple is filled, makes the height of thermode in scheduled thermometric point range.
Temperature-measuring casing 7 of the embodiment 2 under 1200 DEG C or so heat treatment temperatures is in soft state, and extension 72 is overlapped on branch
It is unlikely to fall on carrier ring.
Embodiment 3 is in use, need to wear thermocouple 8 according to the quantity of branch pipe one-to-one correspondence, usually 2-4.Branch pipe
When quantity is 2, thermocouple 8 is first assembled before non-inserting prolonging section 72, is then bent a thermocouple 8, extension 72 is worn
It is matched in another galvanic couple periphery, and by the bending part for bending thermocouple 8 with the gap of 72 bottom end of extension, then by extension
72 with 71 plug connection of embedded section.When branch pipe quantity is 3, upper layer extension 72, grafting are set on the top of extension 72
The same aforesaid operations of journey.
Specifically, the bonnet of bell furnace can be single layer or bilayer.Embodiment 1 uses bonnet, and embodiment 2 uses double-deck furnace
Cover.It is equipped with heating element on table or bonnet, protection gas is additionally provided on table and introduces component, due to heating element
Different with the protection gas introducing position of component, the air circulation direction on silicon strip volume surface is different in bell furnace hot processing chamber, is
It is risen in the outer drop of drop or embodiment 2 in outer liter in embodiment 1.
Further, the termination of thermocouple is connect by conducting wire with display device, and display device is used for real-time display
Temperature in hot processing chamber.
Specifically, the top, bottom end in above-mentioned file are using the horizontal normal operating condition of furnace plate as reference.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
Claims (8)
1. a kind of bell furnace of volume inner core multi-point Temperature Collection, including table, furnace plate, bonnet, it is provided with projection piece on table, it is convex
It rises and is provided with air guide channel between part, furnace plate, which is put, is located at projection piece top, and furnace plate is provided centrally with the gas communicated with air guide channel
Stream circulation through-hole；Bonnet sealing be located on the table of furnace plate outer rim；
It is characterized in that, table center is pre-buried to be provided with vertical temperature-measuring casing, temperature-measuring casing pass through airflow circulating through-hole and its
Top protrudes from furnace plate top surface, and the bottom end of temperature-measuring casing and table are tightly connected, and is equipped with thermocouple, thermocouple in temperature-measuring casing
Working end protrude from the top of temperature-measuring casing, the bottom end of temperature-measuring casing is connected by the fixing piece of installation part and thermocouple.
2. the bell furnace of volume inner core multi-point Temperature Collection according to claim 1, which is characterized in that the thermocouple is pottery
Porcelain thermoelectricity occasionally armoured thermocouple.
3. the bell furnace of volume inner core multi-point Temperature Collection according to claim 1, which is characterized in that temperature-measuring casing is by tubulose
Embedded section and at least one extension head and the tail grafting be composed, extension is located at the top of embedded section.
4. the bell furnace of volume inner core multi-point Temperature Collection according to claim 3, which is characterized in that the bottom end of extension is set
It is equipped with the spliced eye matched with embedded section top or lower layer's extension, the periphery fixed setting of embedded section or lower layer's extension
There is support ring, the top surface of support ring is in contact with the extension bottom face of layer disposed thereon or clearance fit.
5. the bell furnace of volume inner core multi-point Temperature Collection according to claim 3, which is characterized in that the top of embedded section
And/or the bottom end of extension is provided with gap, gap is enclosed with extension and embedded section and is pierced by receiving thermocouple working end
Thermometer hole.
6. rolling up the bell furnace of inner core multi-point Temperature Collection according to claim 1 or 5, which is characterized in that temperature-measuring casing
Bottom end is provided with and communicated at least two branch pipes, the lumen rounding off of branch pipe and temperature-measuring casing；Branch pipe quantity and it is threaded through thermometric
Thermocouple quantity in casing corresponds.
7. the bell furnace of volume inner core multi-point Temperature Collection according to claim 1, which is characterized in that table include substrate and
The table ontology being fixed on substrate, temperature-measuring casing is threaded through in substrate and table ontology, between temperature-measuring casing and substrate
Welded seal connection.
8. the bell furnace of volume inner core multi-point Temperature Collection according to claim 4, which is characterized in that the outer profile of spliced eye
It is pyramidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820888568.5U CN208532882U (en) | 2018-06-08 | 2018-06-08 | A kind of bell furnace of volume inner core multi-point Temperature Collection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820888568.5U CN208532882U (en) | 2018-06-08 | 2018-06-08 | A kind of bell furnace of volume inner core multi-point Temperature Collection |
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| CN208532882U true CN208532882U (en) | 2019-02-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241293A (en) * | 2019-06-21 | 2019-09-17 | 江阴森豪金属科技有限公司 | A kind of high-magnetic induction, low-iron loss annealing process of silicon steel bell furnace |
| CN114307865A (en) * | 2022-02-08 | 2022-04-12 | 新地能源工程技术有限公司 | Fixed bed reactor |
-
2018
- 2018-06-08 CN CN201820888568.5U patent/CN208532882U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110241293A (en) * | 2019-06-21 | 2019-09-17 | 江阴森豪金属科技有限公司 | A kind of high-magnetic induction, low-iron loss annealing process of silicon steel bell furnace |
| CN114307865A (en) * | 2022-02-08 | 2022-04-12 | 新地能源工程技术有限公司 | Fixed bed reactor |
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