CN1050420C - Hot-treatment heating equipment with both vacuum and air layers for heat insulation - Google Patents
Hot-treatment heating equipment with both vacuum and air layers for heat insulation Download PDFInfo
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- CN1050420C CN1050420C CN 94110207 CN94110207A CN1050420C CN 1050420 C CN1050420 C CN 1050420C CN 94110207 CN94110207 CN 94110207 CN 94110207 A CN94110207 A CN 94110207A CN 1050420 C CN1050420 C CN 1050420C
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Abstract
The present invention relates to hot-treatment heating equipment with both vacuum and air layers for heat insulation, which belongs to the field of heat treatment. A heat insulating layer of the present invention is composed of a casing 1, a vacuum layer 5, filling materials 4 and a bricking body 3. The present invention is characterized in that the lateral surface of a vacuum layer is provided with one to a plurality of air layers 2. The size and the shape of the air layers are similar to the size and the shape of the vacuum layer, and the present invention is suitable for different kinds of heat treatment heating equipment. Compared with the prior art, the present invention has the advantages that 1) the heating time can be shortened by 1/2, 2) the electric energy is saved by 50%, and 3) the equipment cost is reduced by 10%.
Description
The present invention relates to the improvement of hot-treatment heating equipment heat preservation technology, belong to the heat treatment field.
Custom has the hot-treatment heating equipment of the title of electricity-eating tiger, is that people are in common knowledge.This explanation hot-treatment heating equipment is in when work, and power consumption is big, and low its numeral of efficiency of energy utilization is surprising, wherein only just reaches 30% more than from the parietal layer heat of walking that looses.Therefore, use for many years hot-treatment heating equipment energy-conservation and improve working conditions aspect, just become one of industry distinct issues.In order to address this problem, in existing technology, adopt three kinds of ways usually: 1. increase heat insulation and thickness heat-insulation layer, 2. select the material of less thermal conductivity factor, the composite that 3. adopts multiple layers of different materials to form.These ways all are preferably, effectively.But still it is big to exist heat loss, the deficiency that equipment volume is big.The patent No. that China authorized in 89～90 years is 882093650,882093703,882093711 and the utility model patent of 88209271x, will solve above-mentioned deficiency exactly.These patents all are to utilize the vacuum heat-insulation device, increase vacuum heat-insulating layer on the furnace wall, utilize the firing equipment of this device, have reduced the radiated energy of furnace wall significantly.It with compare in the past, under same condition, furnace wall temperature drops to 45 ° by original 60 °, the thermal efficiency also is upgraded to 50% by 35%, but it also also has weak point, and promptly the heat loss of furnace wall is still bigger, this is because near the vacuum interlayer material at opposite sides, the cause that the coefficient of heat conduction is still bigger.
Purpose of the present invention just is that the furnace wall temperature that will have the Equipment for Heating Processing of vacuum interlayer further reduces, and makes the thermal efficiency improve a step again, thus the reasonable use energy more, energy savings.
In order to achieve the above object, special solution of the present invention proposed, prior art is improved.
Design of the present invention is a characteristic of utilizing vacuum and air thermal conductivity factor minimum, changes the vacuum interlayer side big material of thermal conductivity factor the material of thermal conductivity factor minimum into, promptly is manufactured with the air chamber interlayer in the vacuum interlayer side, to realize purpose of the present invention and task.
Technical solution of the present invention is a kind of hot-treatment heating equipment with vacuum layer and air layer double thermal insulation, its thermal insulation layer mainly is made up of housing [1], vacuum layer [5], filler [4], masonry [3], it is characterized in that, medial surface in vacuum layer [5], or lateral surface, or medial surface and lateral surface, also design has 1 to a plurality of air chamber layer (being called for short air layer, down together) [2].It is further characterized in that air chamber layer can be the seal cavity of being made by masonry, also can be the seal cavity by heat-resisting board making.Generally be when building stove, add talcum powder in the side of vacuum layer [5] with waterglass and make binding agent that employing is stained with the slurry method and is built into the Sealed sandwich space, the slit does not have.Its shape and size, generally the shape with vacuum layer is close with size.
This hot-treatment heating equipment that has vacuum layer [5] and air layer [2] double thermal insulation, its vacuum layer and air layer double-decker layer be set at the outer side of masonry of burner hearth [3], front, back, top and below.It can be made into the integral body that adapts to the burner hearth shape and size, and the vacuum layer [5] of outer each face of masonry [3] of burner hearth is interconnected separately with air layer [2], also can the set vacuum layer [5] of each face make separately with air layer [2], does not connect mutually.The set air layer in vacuum layer [5] side [2] quantity what, can decide according to the serviceability temperature of equipment, then use a plurality of when furnace temperature is high, be equipped with air layer [2] as vacuum layer [5] both sides, when the equipment serviceability temperature is hanged down, can only establish one, be located at a side of vacuum layer [5].The shape of air layer [2] and size, relevant with vacuum layer [5] and burner hearth [6], generally can determine by the shape and the size of vacuum layer [5] and burner hearth [6], can be rectangle, square, circular, annular, cylindrical shape, square tube shape etc. as its section.In same equipment, the air layer of each face [2] differs, and to establish a capital be the same.
Major advantage of the present invention is: 1. save time, general heat time heating time, comparable prior art shortened half, and energy savings 50% can drop to 200～250KW.h/T by original 540KW.h/T, 3. owing to having omitted the part furnace building material, so can reduce equipment cost 10%.
With RJX-45 molding box formula resistance furnace is example, relatively adopts the technology of the present invention and adopts vacuum layer technology and traditional heat-insulating technique performance data, and its result lists table 1 in.
Be to description of drawings of the present invention below:
Fig. 1 is the designed insulating layer structure schematic diagram that has the hot-treatment heating equipment of vacuum layer [5] and air layer [2] double thermal insulation of the present invention.
Being in thermal insulation layer outermost is housing [1], and each interlayer to body of heater inside is respectively the masonry [3] of air layer [2], vacuum layer [5], filler [4], burner hearth [6].
Fig. 2 is the structural representation of the another kind of form of the designed hot-treatment heating equipment thermal insulation layer that has vacuum layer [5] and air layer [a 2] double thermal insulation of the present invention.
Being in thermal insulation layer outermost is housing [1], is respectively the masonry [3] of vacuum layer [5], air layer [2], burner hearth to each interlayer of furnace interior, and innermost space is burner hearth [6], and the difference of it and Fig. 1 is, has saved the interlayer of filler [4].
Fig. 3 is the structural representation of another form of the designed hot-treatment heating equipment thermal insulation layer that has vacuum layer [5] and air layer [a 2] double thermal insulation of the present invention.
Being in thermal insulation layer outermost is housing [1], is respectively masonry [3], the burner hearth [6] of air layer [2], vacuum layer [5], air layer [2], burner hearth to each interlayer of furnace interior, and different with Fig. 1 is to have replaced filler [4] interlayer with air layer [2].
Fig. 4 is a specific embodiment---a LDII-50 type ion nitriding furnace schematic diagram of using the designed hot-treatment heating equipment thermal insulation layer that has vacuum layer [5] and air layer [2] double thermal insulation of the present invention.
Be provided with air layer [2] at housing [1] nexine, this air layer [2] all is a circular arc in the upper and lower of stove, and is cylindrical shape in the side, and the inside is a vacuum workshop again.It also is a burner hearth simultaneously for (can be considered as vacuum layer [5]).
Fig. 5 uses designed another specific embodiment of hot-treatment heating equipment thermal insulation layer---the IQD-60 vacuum well type multipurpose furnace structural representation that has vacuum layer [5] and air layer [2] double thermal insulation layer of the present invention.
In the side of shaft furnace, each interlayer of thermal insulation layer is respectively the masonry [3] of housing [1], cylindrical shape air layer [2], cylindrical shape vacuum layer [5], cylindrical shape burner hearth in stove; Top at stove is respectively masonry [3], annular air layer [2], ring vaccum layer [5], masonry [3] by housing [1] to furnace interior, and the inside of masonry [3] is burner hearth [6].Bell is respectively masonry [3], disc air layer [2], disc vacuum layer [5], filler [4] in stove by housing [1] then, and furnace bottom is respectively that masonry [3], disc vacuum layer [5], masonry [3] are at last to burner hearth [6] in stove by housing [1].
Below by specific embodiments of the invention, further specify details of the present invention.
With IQD-60 vacuum well type multipurpose furnace, use the vacuum well type multipurpose furnace that has vacuum layer and air layer double thermal insulation instead.
Building oven process at first routinely, is that the refractory masonry brick is built in the bottom of Φ 1360mm cartridge type housing at internal diameter, and laying diameter above it again is Φ 1200mm, high 20mm disc vacuum layer device, refractory brick marshalling on the block on it again.In the side, in housing installed inside height is 1200mm, and external diameter is Φ 1300mm, and internal diameter is the cartridge type vacuum layer device of Φ 1260mm, this device and housing spacing are 30mm, this spacing with refractory brick will above shut, and add talcum powder with waterglass and make binding agent, with being stained with the slurry method that the space sealing between housing and vacuum interlayer is good, just form high 1200mm, external diameter Φ 1360mm, the drum type brake space of internal diameter Φ 1300mm is air layer.In vacuum layer, then puzzle burner hearth with the conventional requirement of refractory brick peace, then, at the masonry that continues to build refractory brick above this vacuum layer, after smooth, putting external diameter is Φ 1360mm, internal diameter is Φ 650mm, and height is the ring vaccum bed device of 40mm, and its outer shroud is near housing, interior ring does not bump Muffle pot and is advisable, then, on the ring vaccum layer, exceed the 40mm place, under the support and housing effect of refractory brick, refractory brick on the block just has a high 40mm of being between refractory brick and the vacuum layer, external diameter is Φ 1130mm, internal diameter is the annular space of Φ 650mm, this space adds talcum powder with waterglass and makes binding agent, seals, and this space is air layer.Use the same method the thermal insulation layer of peace system loam cake.After building stove, oven dry can be stand-by.
Table 1 RJX-45 molding box formula electric furnace employing the present invention,
Vacuum layer and traditional heat-insulating technique performance data are relatively
| Comparison techniques item performance order index | Double thermal insulation technology of the present invention | The vacuum layer heat-insulating technique | Tradition thermal insulation layer technology | Remarks |
| Furnace wall thickness (mm) | 290 | 290 | 290 | |
| The furnace outer wall temperature (℃) | 30 | 45 | 60 | Fire box temperature is by 1000 ℃ of calculating |
| Heating-up time (h) | 4.0 | 5.5 | 8 | By maximum batch 200kg, be warmed up to 1000 ℃ of calculating |
| Power consumption (KW.h/T) | 180 | 247.5 | 360 | The same |
Claims (3)
1, a kind of hot-treatment heating equipment with vacuum layer and air layer double thermal insulation, its thermal insulation layer mainly is made up of housing [1], vacuum layer [5], filler [4], masonry [3], it is characterized in that, medial surface in vacuum layer [5], or lateral surface, or medial surface and lateral surface, also design has 1 to a plurality of air chamber layer [2].
2, the hot-treatment heating equipment with vacuum layer and air layer double thermal insulation according to claim 1 is characterized in that, air layer is a seal cavity of being made by masonry or the seal cavity of being made by refractory plate.
3, the hot-treatment heating equipment with vacuum layer and air layer double thermal insulation according to claim 1 and 2, it is characterized in that, the shape of air layer and size, the shape of general and vacuum layer be with big or small close, and its section can be rectangle, square, circular, annular, cylindrical shape, square tube shape etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110207 CN1050420C (en) | 1994-04-20 | 1994-04-20 | Hot-treatment heating equipment with both vacuum and air layers for heat insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110207 CN1050420C (en) | 1994-04-20 | 1994-04-20 | Hot-treatment heating equipment with both vacuum and air layers for heat insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1110783A CN1110783A (en) | 1995-10-25 |
| CN1050420C true CN1050420C (en) | 2000-03-15 |
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ID=5034193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110207 Expired - Fee Related CN1050420C (en) | 1994-04-20 | 1994-04-20 | Hot-treatment heating equipment with both vacuum and air layers for heat insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050420C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410735A (en) * | 2011-12-20 | 2012-04-11 | 江苏省苏中建设集团股份有限公司沈阳分公司 | Reflective combined type heat-insulating furnace wall of industrial kiln |
-
1994
- 1994-04-20 CN CN 94110207 patent/CN1050420C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1110783A (en) | 1995-10-25 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |