CN202709741U - Fire-proof prefabricated member with multiple through holes and common cavity - Google Patents
Fire-proof prefabricated member with multiple through holes and common cavity Download PDFInfo
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- CN202709741U CN202709741U CN 201120242753 CN201120242753U CN202709741U CN 202709741 U CN202709741 U CN 202709741U CN 201120242753 CN201120242753 CN 201120242753 CN 201120242753 U CN201120242753 U CN 201120242753U CN 202709741 U CN202709741 U CN 202709741U
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- prefabricated member
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Abstract
The utility model provides a fire-proof prefabricated member with multiple through holes and a common cavity. The prefabricated member is formed by combination of a grid with the multiple through holes or a body with a through hole cylinder and baffles, the common cavity is formed in the interior of the prefabricated member after the combination is finished, and the through holes are communicated with the common cavity. When thermal radiation passes through the through holes and enters into the common cavity, a blackbody effect is produced. Under the same thermal radiation environment, the inner wall of a heating furnace which is paved by the fire-proof prefabricated member with the multiple through holes and the common cavity is high in radiation intensity.
Description
Technical field
The utility model relates to a kind of fire-resistant prefabricated member that strengthens thermoradiation efficiency, the fire-resistant prefabricated member of the industrial furnace radiation chamber inwall of especially mating formation.
Background technology
Therefore the heat exchange pattern of 600 to 1300 degree industrial furnaces is also referred to as all-radiant furnace take radiation as main.The heat radiation that is heated the absorption of workpiece or pipeline mainly is comprised of three parts, and the one, inboard wall of burner hearth, the 2nd, flame, the 3rd, flue gas.Improve inboard wall of burner hearth to being heated the radiation effect of workpiece or pipeline, optimal approach is with the black matrix material inwall of mating formation,, the ideal black-body material is non-existent, therefore, the main path that improves at present the furnace wall radiation effect is to select the higher furnace building material of coefficient of blackness or the higher coating of absorptivity.General object always has absorption, reflection is arranged emittance, and the share that absorption portion accounts for gross energy is called absorption coefficient, and its span is between 0～1.If absorption coefficient is 1, the expression energy is all absorbed, and namely this object can all absorb the radiation of the next various wavelength of projection, and this object is called absolute black body, or is called for short black matrix (black body).Although there is not ideal black-body,, provided for a long time a kind of black matrix model in the physics, Here it is hole cavity-formed, and as the standard object extensive use of heat radiation research.Its mechanism is the area that the internal surface area of hole cavity-formed is far longer than perforate, enters heat radiation ray repeatedly diffuse reflection in cavity of cavity by perforate, and finally is absorbed, and again radiate from perforate.Therefore, as long as improved it to thermal-radiating absorptivity for any object, its radianting capacity also correspondingly improves.
Summary of the invention
Low to thermal-radiating absorptivity in order to overcome the existing inner liner of industrial furnace, thereby, its radiation efficiency is low problem also, the utility model provides a kind of shared cavity fire-resistant prefabricated member of multi-through hole that heat radiation is had high-absorbility, there is a shared cavity inside of prefabricated component, the work side of prefabricated component is prepared with a plurality of through holes, and each through hole all is communicated with shared cavity; The gross area of through hole and cavity inner wall is several times to tens times of perforated area.When the heat radiation ray enter through through hole share cavity after, at the surface of internal cavity Multi reflection and be absorbed, thereby produce black body effect.Under same heat radiation environment, share the ability that metope that the cavity fire-resistant prefabricated member mats formation has larger absorptive thermal radiation with multi-through hole, under same heat condition, form higher radiation intensity.
The technical problems to be solved in the utility model is in the radiation intensity of the inboard wall of burner hearth that improves industrial furnace to heated object.The technical scheme that its technical problem that solves the utility model adopts is as follows
Scheme 1: the work side of fire-resistant prefabricated member, that is, the through hole on the side of burner hearth is prepared into grill-shaped, form the cavity that shares after through hole grid and the baffle combination, and the through hole of grid is communicated with shared cavity.The number of through-holes of grid and size, and the volume of inner chamber determines that according to the strength of materials and the size of fire-resistant prefabricated member the gross area of through hole and cavity inner wall is several times to tens times of perforated area.
Scheme 2: the through hole of fire-resistant prefabricated member work side be prepared into one group cylindrical, form the body with the through hole cylinder, the cavity that form to share after body and the baffle combination, and the perforate of through hole cylinder is communicated with shared cavity.The number of through hole cylinder and diameter, and the volume of inner chamber determines that according to the strength of materials and the size of fire-resistant prefabricated member the gross area of through hole and cavity inner wall is several times to tens times of perforated area.
The beneficial effects of the utility model are to utilize through hole and the shared cavity of fire-resistant prefabricated member, formation black body effect, raising radiation efficiency.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is embodiment 1 of the present utility model.
1. through hole grids, 2. through hole, 3. baffle plate among the figure.
Fig. 2 is the cutaway view of embodiment 1 of the present utility model.
1. through hole grids among the figure, 2. through hole, 3. baffle plate, 4. shared cavity.
Fig. 3 is embodiment 2 of the present utility model.
1. bodies among the figure, 2. through hole cylinder, 3. baffle plate.
Fig. 4 is the cutaway view of embodiment 2 of the present utility model.
1. bodies among the figure, 2. through hole cylinder, 3. baffle plate, 4. shared cavity.
The specific embodiment
In embodiment illustrated in figures 1 and 2, the through hole grid (1) of fire-resistant prefabricated member and baffle plate (3) combination, and form a shared cavity (4), the through hole of through hole grid (2) is communicated with cavity; The volume of the number of through-holes of grid and size and shared cavity is determined according to the strength of materials and the size of fire-resistant prefabricated member.
Fig. 3 and embodiment illustrated in fig. 4 in, the body of fire-resistant prefabricated member (1) and baffle plate (3) combination, and form a shared cavity (4) is prepared with the through hole cylinder (2) that several are communicated with shared cavity on the body; The volume of the number of through hole cylinder and diameter and shared cavity is determined according to the strength of materials and the size of fire-resistant prefabricated member.
Claims (3)
1. a multi-through hole shares the cavity fire-resistant prefabricated member, it is characterized in that fire-resistant prefabricated member inside is prepared with shared cavity, the work side is prepared with a plurality of through holes, and through hole is communicated with shared cavity, and the gross area of through hole and cavity inner wall is several times to tens times of perforated area.
2. multi-through hole according to claim 1 shares the cavity fire-resistant prefabricated member, it is characterized in that the through hole of its work side can be prepared into grill-shaped.
3. multi-through hole according to claim 1 shares the cavity fire-resistant prefabricated member, it is characterized in that the through hole of its work side can be prepared into cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120242753 CN202709741U (en) | 2011-07-12 | 2011-07-12 | Fire-proof prefabricated member with multiple through holes and common cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120242753 CN202709741U (en) | 2011-07-12 | 2011-07-12 | Fire-proof prefabricated member with multiple through holes and common cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709741U true CN202709741U (en) | 2013-01-30 |
Family
ID=47590034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120242753 Expired - Fee Related CN202709741U (en) | 2011-07-12 | 2011-07-12 | Fire-proof prefabricated member with multiple through holes and common cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596287A (en) * | 2014-12-31 | 2015-05-06 | 上海乐恒石油化工集团有限公司 | Fireproof radiation element and application thereof as well as industrial furnace |
| CN110173994A (en) * | 2019-05-31 | 2019-08-27 | 东北大学 | A kind of porous radiation Blackbody element of cavity |
-
2011
- 2011-07-12 CN CN 201120242753 patent/CN202709741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596287A (en) * | 2014-12-31 | 2015-05-06 | 上海乐恒石油化工集团有限公司 | Fireproof radiation element and application thereof as well as industrial furnace |
| CN110173994A (en) * | 2019-05-31 | 2019-08-27 | 东北大学 | A kind of porous radiation Blackbody element of cavity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20160712 |