CN207313429U - Glass oven - Google Patents
Glass oven Download PDFInfo
- Publication number
- CN207313429U CN207313429U CN201721257940.4U CN201721257940U CN207313429U CN 207313429 U CN207313429 U CN 207313429U CN 201721257940 U CN201721257940 U CN 201721257940U CN 207313429 U CN207313429 U CN 207313429U
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- CN
- China
- Prior art keywords
- equalization system
- temperature equalization
- temperature
- furnace body
- workpiece
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Abstract
The utility model discloses a kind of glass oven that can improve effective workspace annealing temperature uniformity in stove.The glass oven, including the furnace body with burner hearth and the heating element being arranged on inboard wall of furnace body, the temperature equalization system being arranged in burner hearth is further included, the temperature equalization system is made of refractory material, and temperature equalization system is internally provided with workpiece anneal chamber, the upper end equipped with the opening communicated with workpiece anneal chamber.By setting the temperature equalization system made of refractory material in the burner hearth of furnace body, the workpiece anneal chamber set using in temperature equalization system anneals glass pieces as effective workspace of annealing, the side wall of temperature equalization system can be utilized to absorb the uneven heat given off by heating element, and then even heat is distributed on the side wall of temperature equalization system and uniform heat is given off to workpiece anneal chamber in a manner of surface radiation, so as to improve the uniformity of effective workspace annealing temperature.
Description
Technical field
A kind of annealing device is the utility model is related to, particularly a kind of glass oven.
Background technology
Annealing furnace is that one kind utilizes resistance wire heating power, and heated work is mainly transferred heat to by way of radiation
Part, reaches a kind of device of target temperature.The annealing device for being mainly used for making annealing treatment glass in annealing furnace is
Glass oven.Existing glass oven includes the furnace body with burner hearth and the adding thermal resistance being arranged on inboard wall of furnace body
Thread, the position that it from radiant heat is concentrated in burner hearth is effective workspace.
In order to ensure glass annealing effect, usually require that effective workspace in burner hearth has good temperature uniformity；
However, existing glass oven is often because resistive heater arrangement is improper, resistance wire winding density is uneven, partial short-circuit
Or the non-uniform reason of heat source heat flux distribution such as damage, and caused by burner hearth the temperature deviation of effectively workspace larger ask
Topic.Optical glass etc. is made annealing treatment according to it, it is likely that can cause optical glass folding because the temperature difference in stove is larger
The problems such as rate is uneven, stress level is excessive is penetrated, it is defect ware to make the product that manufacture obtains.
Utility model content
It is equal that effective workspace annealing temperature in stove can be improved the technical problem to be solved by the present invention is to provide one kind
The glass oven of even property.
Technical solution is used by the utility model solves its technical problem：Glass oven, including with burner hearth
Furnace body and the heating element being arranged on inboard wall of furnace body, further include the temperature equalization system being arranged in burner hearth, the temperature equalization system by
Refractory material is made, and temperature equalization system is internally provided with workpiece anneal chamber, the upper end equipped with the opening communicated with workpiece anneal chamber.
It is further that the heating element is resistance wire.
It is further that the resistance wire is uniformly distributed on inboard wall of furnace body.
It is further that the refractory material is fire resisting of the thermal conductivity factor less than 0.5W/ (mK) at 400~1000 DEG C
Material.
It is further that the shape of the temperature equalization system outer wall is identical with the shape of inboard wall of furnace body, temperature equalization system outer wall
Size is less than the size of inboard wall of furnace body.
It is further the split structure that the temperature equalization system is an integral structure or is spliced by refractory material.
It is further that the temperature equalization system is arranged on the centre position in burner hearth, the side wall of temperature equalization system is in burner hearth
Effectively between workspace and heating element.
It is further that the thickness of the side wall of the temperature equalization system is 5~50mm.
The beneficial effects of the utility model are：By setting the samming made of refractory material to fill in the burner hearth of furnace body
Put, the workpiece anneal chamber set using in temperature equalization system anneals glass pieces as effective workspace of annealing, and can utilize equal
The side wall of warm device absorbs the uneven heat given off by heating element, and then even heat is distributed in the side of temperature equalization system
Uniform heat is given off on wall and to workpiece anneal chamber in a manner of surface radiation, so as to improve effective workspace annealing temperature
Uniformity.
Brief description of the drawings
Fig. 1 is the implementation structure diagram of the utility model；
In figure mark for：Furnace body 10, heating element 20, temperature equalization system 30, glass pieces 40.
Embodiment
The utility model will be further described below with reference to the accompanying drawings.
As shown in Figure 1, glass oven, including the furnace body 10 with burner hearth, the heating unit that is arranged on 10 inner wall of furnace body
Part 20 and the temperature equalization system 30 being arranged in burner hearth, the temperature equalization system 30 are made of refractory material, temperature equalization system 30 it is interior
Portion is equipped with workpiece anneal chamber, the upper end is equipped with the opening communicated with workpiece anneal chamber.The glass oven is with temperature equalization system 30
If workpiece anneal chamber anneal as the effective workspace of annealing to glass pieces 40；In annealing process, temperature equalization system 30
Side wall can absorb the uneven heat given off by heating element 20, and workpiece anneal chamber is given off in a manner of surface radiation
Uniform heat, so as to improve the uniformity of effective workspace annealing temperature.
Wherein, heating element 20 is mainly used for heating furnace, and heating element 20 can be a variety of, usually select electrical heating
Element, such as：Resistance band, electroheat pair etc.；It is of course also possible to select other heating elements or device；Heating element 20 is preferably
Resistance wire；Generally resistance wire is evenly arranged on 10 inner wall of furnace body, such as：More resistance wires are equidistantly spaced from furnace body 10
On inner wall, single resistance silk is arranged in zigzag along furnace height direction；In another example：Resistance wire is twist arranged in furnace body
On 10 inner walls.
The purpose that temperature equalization system 30 selects refractory material to make is so that temperature equalization system 30 has preferable endothermic effect,
Larger temperature gradient can be internally formed in burner hearth, so that the uneven heat that effectively alleviation heating element 20 gives off is to glass
The influence of glass workpiece 40；In order to further improve the temperature uniformity of effective workspace, temperature equalization system 30 preferably uses
Refractory material of the thermal conductivity factor less than 0.5W/ (mK) makes at 400~1000 DEG C；The thickness of 30 side wall of temperature equalization system is preferably
5~50mm, generally require according to operating temperature in burner hearth, effective workspace maximum temperature difference, refractory material thermal conductivity factor and
Annealing furnace temperature control method integrate definite.Temperature equalization system 30 is usually arranged on the centre position in burner hearth, and makes temperature equalization system
30 side wall is in former burner hearth effectively between workspace and heating element 20.
Preferably, the shape of 30 outer wall of temperature equalization system is identical with the shape of 10 inner wall of furnace body, 30 outer wall of temperature equalization system
Size be less than 10 inner wall of furnace body size.The temperature equalization system 30 of the planform can be corresponding with 10 inner wall of furnace body, fully
The heat that heating element 20 gives off is absorbed, the utilization rate of thermal energy can be improved while annealing temperature uniformity is ensured.
Temperature equalization system 30 can be an integral structure, or the split type knot being spliced by polylith refractory material
Structure.30 stable structure of temperature equalization system of integral structure, even temperature effect are more preferable；And the temperature equalization system 30 of split structure manufactures more
It is convenient.
In order to preferably control the annealing temperature in workpiece anneal chamber, to produce the more preferable glass product of quality,
The glass oven further includes control system and temperature sensor, and temperature sensor is arranged in workpiece anneal chamber, and temperature passes
Sensor and heating element 20 are electrically connected with control system respectively.Temperature sensor is used to detect the annealing in workpiece anneal chamber in real time
Temperature, and the real time temperature detected is fed back into control system, control system will be preset with annealing temperature in real time temperature and its
Degree is compared, and controls heating element 20 to reduce output power if temperature is excessive, if the too low control heating element 20 of temperature
Improve output power.
Claims (8)
1. glass oven, including the furnace body (10) with burner hearth and the heating element (20) that is arranged on furnace body (10) inner wall,
It is characterized in that：The temperature equalization system (30) being arranged in burner hearth is further included, the temperature equalization system (30) is made of refractory material,
Warm device (30) is internally provided with workpiece anneal chamber, the upper end equipped with the opening communicated with workpiece anneal chamber.
2. glass oven as claimed in claim 1, it is characterised in that：The heating element (20) is resistance wire.
3. glass oven as claimed in claim 2, it is characterised in that：The resistance wire uniformly divides on furnace body (10) inner wall
Cloth.
4. glass oven as claimed in claim 1, it is characterised in that：The refractory material is to be led at 400~1000 DEG C
Hot coefficient is less than the refractory material of 0.5W/ (mK).
5. the glass oven as described in claim 1,2,3 or 4, it is characterised in that：The shape of temperature equalization system (30) outer wall
Shape is identical with the shape of furnace body (10) inner wall, and the size of temperature equalization system (30) outer wall is less than the size of furnace body (10) inner wall.
6. glass oven as claimed in claim 5, it is characterised in that：The temperature equalization system (30) be an integral structure or by
The split structure that refractory material is spliced.
7. glass oven as claimed in claim 5, it is characterised in that：The temperature equalization system (30) is arranged on the centre in burner hearth
Position.
8. glass oven as claimed in claim 7, it is characterised in that：The thickness of the side wall of the temperature equalization system (30) is 5
~50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721257940.4U CN207313429U (en) | 2017-09-27 | 2017-09-27 | Glass oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721257940.4U CN207313429U (en) | 2017-09-27 | 2017-09-27 | Glass oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207313429U true CN207313429U (en) | 2018-05-04 |
Family
ID=62428311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721257940.4U Active CN207313429U (en) | 2017-09-27 | 2017-09-27 | Glass oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207313429U (en) |
-
2017
- 2017-09-27 CN CN201721257940.4U patent/CN207313429U/en active Active
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| GR01 | Patent grant |