CN211120655U - Heat shield for preventing high-radiation heat equipment from radiating outwards - Google Patents
Heat shield for preventing high-radiation heat equipment from radiating outwards Download PDFInfo
- Publication number
- CN211120655U CN211120655U CN201921998806.9U CN201921998806U CN211120655U CN 211120655 U CN211120655 U CN 211120655U CN 201921998806 U CN201921998806 U CN 201921998806U CN 211120655 U CN211120655 U CN 211120655U
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- Prior art keywords
- heat
- header
- shield
- plate
- calandria
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- 238000010521 absorption reaction Methods 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 238000000576 coating method Methods 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 239000006096 absorbing agent Substances 0.000 claims description 12
- 238000004804 winding Methods 0.000 claims description 9
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000013529 heat transfer fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 206010019345 Heat stroke Diseases 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- MGRWKWACZDFZJT-UHFFFAOYSA-N molybdenum tungsten Chemical compound [Mo].[W] MGRWKWACZDFZJT-UHFFFAOYSA-N 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 208000005392 Spasm Diseases 0.000 description 1
- 208000012886 Vertigo Diseases 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000001755 magnetron sputter deposition Methods 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002969 morbid Effects 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 231100000889 vertigo Toxicity 0.000 description 1
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Abstract
The utility model relates to a be used for preventing outside radiating heat screen of high radiant heat equipment belongs to energy-saving equipment technical field. The utility model discloses a heat absorbing plate, shell, water pipe, clamp, collector, calandria, heat preservation. The heat absorption plate is composed of heat collection fins, the heat exchange area can be effectively increased, the surface of the heat absorption plate is covered with an absorption coating for absorbing high-radiation heat, the effective absorption rate of the high-radiation heat is improved, the heat insulation layer can effectively prevent heat from dissipating, and heat exchange fluid flows inside the collecting pipe and the exhaust pipe. After the heat absorption plate absorbs high radiant heat, heat is transferred to the heat exchange fluid medium in a heat conduction and convection heat exchange mode, and the heat is taken away by the temperature rise of the heat exchange fluid. The heat shield can separate the heat radiation of high radiant heat equipment in the environment with high radiant heat, and reduces the environment temperature.
Description
Technical Field
The utility model relates to a be used for preventing outside radiating heat screen of high radiant heat equipment belongs to energy-saving equipment technical field.
Background
The high-temperature and high-radiation heat environment has great harm to the health of workers, and for the high-temperature and high-radiation environment, for example: boilers such as thermal power plants and electric heating furnaces; metallurgical industry workshops such as steel making, iron making and the like; mechanical manufacturing plants such as forging and heat treatment; kiln workshops such as ceramic, brick firing, glass and the like. Personnel working in high temperature, high radiant heat environments for extended periods of time are prone to the morbid symptoms of various thermal disorders in these extreme environments, such as: vertigo, heatstroke, heat stroke, heat spasm, and heat failure. In order to reduce the harm of thermal environment pollution to workers and reduce the potential safety hazard of workshops, natural ventilation and mechanical ventilation are enhanced in high-temperature operation areas such as boilers, forging workshops and the like in various conventional manufacturing plants and workshops, and a heat shield is required to be arranged in the operation area with high radiant heat, so that the high radiant heat in the thermal environment must be protected.
Most of the existing heat shields are made of tungsten heat shields, molybdenum heat shields and the like, most of the heat shields can be used in electric heating furnaces, boilers and production workshops, in actual production, most of the heat shields are made of tungsten, molybdenum and the like into heat shields or cylindrical heat shields, but the heat shields in the forms can only be limited to reflect radiant heat generated in a high-radiant heat operation area, the reflected radiant heat is gathered in the operation area, and the radiant heat can still be diffused into the environment. Therefore, how to realize the purpose of blocking the high radiant heat in the operation area and preventing the radiant heat from diffusing into the environment is a problem to be solved.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the utility model provides a be used for preventing outside radiating heat screen of high radiation heat equipment, this heat screen can be in the environment that has high radiation equipment, and the thermal radiation of separation high radiation heat equipment reduces ambient temperature, and is energy-concerving and environment-protective.
The utility model adopts the technical scheme that: a heat shield for preventing high radiant heat equipment from radiating outwards comprises a heat absorbing plate 1, a shell 4, a water pipe 5, a hoop 6, a header 7, a discharge pipe 8 and a plug 10; the heat exchange fluid enters and exits the heat shield through a water pipe 5, and the water pipe 5 is tightly connected to a header 7 on the upper side and the lower side of the heat shield through a clamp 6; the other end of the header 7 on the upper side is tightly plugged by a plug 10 to prevent heat exchange fluid from flowing out, one end of the header 7 on the lower side of the heat shield is externally connected with a water pipe 5, the other end of the header 7 on the lower side of the heat shield is tightly plugged by the plug 10, the header 7 on the upper side and the header 7 on the lower side of the heat shield are communicated through a plurality of calandria 8, a heat absorbing plate 1 is arranged between two adjacent calandria 8, the heat absorbing plate 1 is in close contact with the calandria 8, the heat exchange fluid flows in the header 7 and the calandria 8 on the upper.
Further, the row of tubes 8 is a profiled tube, the inner wall structure forming the flow winding generator 9 through the mould.
Furthermore, heat absorbing plates 1 are uniformly arranged between two adjacent calandria 8, and the heat absorbing plates 1 are heat collecting fins with equal area; the heat exchange area can be effectively increased, the structure is simple, and the installation is convenient.
Further, the surface of the heat absorbing plate 1 is coated with an absorbing coating 2 for absorbing high-radiation heat; the absorption rate of the heat absorption plate to the high radiant heat equipment is improved.
Furthermore, the shell 4 seals the back side of the absorber plate 1 away from the high radiant heat equipment, the header 7 and the calandria 8 tightly to form a whole closed heat shield, and only the heat absorption side exposed out of the absorber plate 1 is outside; the heat absorption side of the heat absorption plate 1 is exposed, and heat insulation layers 3 are filled between other parts of the heat absorption plate 1 and the shell 4; can effectively prevent heat loss.
Furthermore, the heat absorption side of the heat absorption plate 1 is exposed, and a layer of thin rock wool is filled between the other part of the heat absorption plate 1 and the heat insulation layer 3.
The utility model discloses a scribble the selectivity absorption coating who absorbs high radiant heat on the absorber plate, this heat shield can absorptive radiant heat can be calculated according to following theoretical formula Q ═ AE α, wherein A is the heat shield absorber plate area, E is the actual radiation power of high radiant heat equipment, α is the heat shield absorption ratio, the heat shield absorber plate can effectively absorb a large amount of radiant heat, thermal loss has been avoided, the absorber plate absorbs behind the radiant heat through heat conduction and convection heat transfer's mode with the heat transfer fluid, the heat transfer between inside pipe wall and the fluid can be calculated according to following theoretical formula:
wherein
Is the convective heat transfer coefficient in the tube, r1Radius of the inner layer flow of the pipe, r2Is the internal radius of the tube, λ1For the laminar flow bottom heat conductivity coefficient of the fluid in the pipe, the winding generator arranged in the heat shield exhaust pipe can increase the winding of the heat exchange fluid and the heat exchange fluid in the pipe, reduce the laminar flow state, reduce the thickness of the laminar flow bottom layer, enhance the turbulent flow state and improve the heat exchange.
The utility model has the advantages that: the utility model discloses the structure is simple and easy, compares in the heat screen of pure tungsten molybdenum material the cost is reduced, and the heat transfer fluid that rises through heat transfer back temperature simultaneously takes away radiant heat, has reduced ambient temperature, and thermal-insulated effect has also promoted greatly, and the heat transfer fluid that just rises of temperature can also carry out cyclic utilization, and is energy-concerving and environment-protective.
Drawings
FIG. 1 is a perspective view of the heat shield of the present invention;
FIG. 2 is a sectional view of the heat shield of the present invention taken along line A-A;
FIG. 3 is a sectional view of the heat shield of the present invention taken along line B-B;
figure 4 is a cross-sectional view of the heat shield of the present invention.
The respective reference numerals in FIGS. 1 to 4: 1-absorber plate, 2-absorption coating, 3-heat insulation layer, 4-shell, 5-water pipe, 6-hoop, 7-header, 8-calandria, 9-winding generator and 10-plug.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1-4, a heat shield for preventing high radiant heat equipment from radiating heat outwards comprises a heat absorbing plate 1, a shell 4, a water pipe 5, a clamp 6, a header 7, a discharge pipe 8 and a plug 10; the heat exchange fluid enters and exits the heat shield through a water pipe 5, and the water pipe 5 is tightly connected to a header 7 on the upper side and the lower side of the heat shield through a clamp 6; the other end of the header 7 on the upper side is plugged by a plug 10 to prevent the heat exchange fluid from flowing out, one end of the header 7 on the lower side of the heat shield is externally connected with a water pipe 5, the other end of the header 7 on the lower side of the heat shield is plugged by the plug 10 to prevent the heat exchange fluid from flowing out, the header 7 on the upper side and the header 7 on the lower side are communicated with each other through a plurality of calandria 8, a heat absorbing plate 1 is arranged between every two adjacent calandria 8, the heat absorbing plate 1 is in close contact with the calandria 8, the heat exchange fluid flows in the header 7 and the calandria 8.
Further, the row of tubes 8 is a profiled tube, the inner wall structure forming the flow winding generator 9 through the mould.
Furthermore, heat absorbing plates 1 are uniformly arranged between two adjacent calandria 8, and the heat absorbing plates 1 are heat collecting fins with equal area; the heat exchange area can be effectively increased, the structure is simple, and the installation is convenient.
Further, the surface of the heat absorbing plate 1 is coated with an absorbing coating 2 for absorbing high-radiation heat; the absorption rate of the heat absorption plate to the high radiant heat equipment is improved. The surface of the heat absorbing plate 1 is coated with an absorbing coating 2 which absorbs high radiant heat through a magnetron sputtering method, so that the radiant energy of the high radiant heat is effectively absorbed.
Furthermore, the shell 4 seals the back side of the absorber plate 1 away from the high radiant heat equipment, the header 7 and the calandria 8 tightly to form a whole closed heat shield, and only the heat absorption side exposed out of the absorber plate 1 is outside; the heat absorption side of the heat absorption plate 1 is exposed, and heat insulation layers 3 are filled between other parts of the heat absorption plate 1 and the shell 4; ensure that a large amount of radiant heat energy is exchanged and absorbed by the heat exchange fluid in the tube, and prevent the radiant heat from diffusing to the environment. The heat exchange fluid flows in the tubes in the whole heat shield, absorbs radiant heat energy and converts the radiant heat energy into high-temperature heat exchange fluid, and takes away the radiant heat; the insulating layer 3 can be made of polystyrene material.
Furthermore, the heat absorption side of the heat absorption plate 1 is exposed, and a layer of thin rock wool is filled between the other part of the heat absorption plate 1 and the heat insulation layer 3. The heat-insulating layer 3 is prevented from being heated and shrunk;
the shell 4 can also be formed by one-step compression molding of a tungsten-molybdenum plate, and a moisture-heat-resistant and anti-aging coating is sprayed on the surface of the shell to block high-radiation heat.
Further, the present invention can be manufactured in a desired shape, for example, a cylindrical shape, according to the shape of the high radiant heat equipment to be used, at the time of manufacturing.
Furthermore, the absorber plate 1, the shell 4, the header 7 and the exhaust pipe 8 can also be made of flexible materials, and the shape of the heat shield can be changed according to the actual requirement of the high radiant heat equipment.
The utility model discloses a theory of operation does:
(1) the radiant heat released by the high radiant heat equipment is radiated to the heat absorbing plate 1 of the heat shield, the heat absorbing plate 1 (heat collecting fins) and the high radiant heat absorbing coating 2 can effectively absorb the high radiant heat, and the heat absorbing plate 1 absorbs the radiant heat to obtain the radiant heat.
(2) The heat exchange fluid enters a header 7 transversely arranged on the lower side of the heat shield in the heat shield through a water pipe 5, the heat exchange fluid flows into a calandria 8 vertically distributed with a winding generator 9 after being collected in the header 7 on the lower side, the winding generator 9 can increase the winding flow of the heat exchange fluid and the inside of the pipe, the laminar flow state is reduced, the thickness of the laminar flow bottom layer is reduced, the turbulent flow state is enhanced, and the heat exchange is improved; the heat exchange fluid fills the calandria 8 and then flows into the header 7 transversely arranged on the upper side of the heat shield, and at the moment, the radiant heat energy absorbed on the heat absorbing plate transfers the heat to the heat exchange fluid in the header 7 and the calandria 8 in a heat conduction and convection heat exchange mode. And meanwhile, the back and the side edges of the heat absorbing plate 1 are filled with the heat insulating layer 3, so that a large amount of radiation heat energy is absorbed by heat exchange fluid in the tube, and the radiation heat is prevented from being diffused to the environment. The heat exchange fluid flows in the tubes in the whole heat shield, absorbs the radiant heat energy and converts the radiant heat energy into high-temperature heat exchange fluid, and takes away the radiant heat.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (6)
1. A heat shield for preventing a high radiant heat device from radiating heat outward, comprising: comprises a heat absorbing plate (1), a shell (4), a water pipe (5), a hoop (6), a collecting pipe (7), a discharge pipe (8) and a plug (10); the heat exchange fluid enters and exits the heat shield through a water pipe (5), and the water pipe (5) is tightly connected to a header (7) at the upper side and the lower side of the heat shield through a hoop (6); the other end of the header (7) on the upper side is plugged by a plug (10) to prevent heat exchange fluid from flowing out, one end of the header (7) on the lower side of the heat shield is externally connected with a water pipe (5), the other end of the header is plugged by the plug (10), the header (7) on the upper side and the header on the lower side are communicated with each other through a plurality of calandria (8), a heat absorbing plate (1) is arranged between every two adjacent calandria (8), the heat absorbing plate (1) is in close contact with the calandria (8), and the heat exchange fluid flows in the header (7) on the upper side and the header on the lower side and the calandria (8) to absorb the radiation energy obtained on the heat.
2. The heat shield for preventing the high radiant heat apparatus from radiating heat to the outside as claimed in claim 1, wherein: the calandria (8) is a special pipe, and the inner wall structure forms a winding flow generator (9) through a mould.
3. The heat shield for preventing the high radiant heat apparatus from radiating heat to the outside as claimed in claim 1, wherein: the heat absorbing plates (1) are uniformly arranged between two adjacent calandria (8), and the heat absorbing plates (1) are heat collecting fins with equal area.
4. The heat shield for preventing the high radiant heat apparatus from radiating heat to the outside as claimed in claim 1, wherein: the surface of the heat absorbing plate (1) is coated with an absorbing coating (2) for absorbing high radiant heat.
5. The heat shield for preventing the high radiant heat apparatus from radiating heat to the outside as claimed in claim 1, wherein: the shell (4) seals one side of the back of the absorber plate (1), which is far away from the high radiant heat equipment, of the header (7) and the calandria (8) to form a whole closed heat shield, and only the heat absorption side of the absorber plate (1) is exposed outside; the heat absorption side of the heat absorption plate (1) is exposed, and heat insulation layers (3) are filled between other parts of the heat absorption plate (1) and the shell (4).
6. The heat shield for preventing the high radiant heat apparatus from radiating heat to the outside as claimed in claim 5, wherein: the heat absorption plate (1) is exposed except for the heat absorption side, and a layer of thin rock wool is filled between the other part of the heat absorption plate (1) and the heat insulation layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921998806.9U CN211120655U (en) | 2019-11-19 | 2019-11-19 | Heat shield for preventing high-radiation heat equipment from radiating outwards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921998806.9U CN211120655U (en) | 2019-11-19 | 2019-11-19 | Heat shield for preventing high-radiation heat equipment from radiating outwards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211120655U true CN211120655U (en) | 2020-07-28 |
Family
ID=71702290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921998806.9U Expired - Fee Related CN211120655U (en) | 2019-11-19 | 2019-11-19 | Heat shield for preventing high-radiation heat equipment from radiating outwards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211120655U (en) |
-
2019
- 2019-11-19 CN CN201921998806.9U patent/CN211120655U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |