CA2369160C - Multi-hot aerator limp-mattress type supporting and heating systems for materials - Google Patents
Multi-hot aerator limp-mattress type supporting and heating systems for materials Download PDFInfo
- Publication number
- CA2369160C CA2369160C CA002369160A CA2369160A CA2369160C CA 2369160 C CA2369160 C CA 2369160C CA 002369160 A CA002369160 A CA 002369160A CA 2369160 A CA2369160 A CA 2369160A CA 2369160 C CA2369160 C CA 2369160C
- Authority
- CA
- Canada
- Prior art keywords
- heated air
- mattress
- limp
- inflatable
- supply assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
- F24D5/06—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated
- F24D5/10—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated with hot air led through heat-exchange ducts in the walls, floor or ceiling
Abstract
The heating systems used to preheat large refractory surfaces in order to stack different layers of material normally used are either electrical heating plates or gas burners. In the present invention, the heating apparatus is made of one or many mattresses laid on the surface to be heated, the number of mattresses depending on the size of the area to be heated. The mattress is connected to one or many portable heating units equipped with a fan and a heat exchanger that inflate the mattress with warm air and create an air film between the mattress and the surface to be heated. The advantage of that apparatus is the lightness, the precision and the homogeneity of the temperature obtained at the specific surface.
Description
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Multi Hot Aerator Lima-Mattress Type Supaortina and Heatina Systems for Materials Field of the invention The present invention generally relates to heating apparatuses. More specifically, but not exclusively, the present invention is concerned with a temporary hot air heating apparatus that can preheat refractory material.
Background of the invention It is known that a refractory material must get to a predetermined temperature to achieve its optimal configuration, and that obtaining this temperature and its homogeneity are key elements for the viability of the refractory material.
In some existing techniques, the preheating of a refractory material is done by using heating plates against the surface of the material (radiation).
However, these techniques involving heating plates do not give a constant heating as the plate must be hotter that the desired temperature. Also, the heavy weight and the rigidity of the metal plates make their handling much more difficult.
For instance, to get a surface heated at 40 C, a plate is generally heated at 150 C, and the only way to control the temperature at the surface of the material is the heating time.
Another method which may be used includes the building of a temporary tent. A
unit heater is installed on the refractory surface and heats the space covered by the tent.
However, this method involves a very long heating time, since all the space under the tent must be heated, instead of heating only the desired surface. Also, the heating homogeneity is not constant.
The heating apparatus of the present invention reduces the air volume to be heated (mattress) and produces a generally constant and uniform heat that allows the control of the temperature of the desired refractory surface, and its heating time.
Summary of the invention More specifically, in accordance with the present invention, there is provided an apparatus for heating a surface of refractory material, comprising: an inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material; a heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress; and means for producing a film of heated air between the air diffusion surface of the inflatable limp mattress and the surface of refractory material. The heated air film producing means comprises the heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress and the air diffusion surface uniformly diffusing heated air from the chamber of the inflatable limp mattress over the spacing between the air diffusion surface and the surface of refractory material to produce the film of heated air which uniformly heats said surface of refractory material.
According to the invention, there is also provided an apparatus for heating a surface of refractory material, comprising: at least one inflatable limp mattress, each inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material; at least one heated air supply assembly for supplying heated air to the chamber of the at least one inflatable limp mattress, each heated air supply assembly comprising a heat exchanger providing heated air and a fan for blowing heated air from the heat exchanger to the chamber of the at least one inflatable limp mattress; and means for producing a film of heated air between the air diffusion surface of the at least one inflatable limp mattress and the surface of refractory material. The heated air film producing means comprising the at least one heated air supply assembly for supplying heated air to the chamber of the at least one inflatable limp mattress and the air diffusion surface of the at least one inflatable limp mattress for uniformly diffusing heated air from the chamber of the at least one inflatable limp mattress over the spacing between the air diffusion surface of the at least one inflatable limp mattress and the surface of refractory material to produce the film of heated air which uniformly heats said surface of refractory material.
The foregoing and other objects, advantages and features of the present invention will become more apparent upon reading of the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
. , . . . . . . . . .
Multi Hot Aerator Lima-Mattress Type Supaortina and Heatina Systems for Materials Field of the invention The present invention generally relates to heating apparatuses. More specifically, but not exclusively, the present invention is concerned with a temporary hot air heating apparatus that can preheat refractory material.
Background of the invention It is known that a refractory material must get to a predetermined temperature to achieve its optimal configuration, and that obtaining this temperature and its homogeneity are key elements for the viability of the refractory material.
In some existing techniques, the preheating of a refractory material is done by using heating plates against the surface of the material (radiation).
However, these techniques involving heating plates do not give a constant heating as the plate must be hotter that the desired temperature. Also, the heavy weight and the rigidity of the metal plates make their handling much more difficult.
For instance, to get a surface heated at 40 C, a plate is generally heated at 150 C, and the only way to control the temperature at the surface of the material is the heating time.
Another method which may be used includes the building of a temporary tent. A
unit heater is installed on the refractory surface and heats the space covered by the tent.
However, this method involves a very long heating time, since all the space under the tent must be heated, instead of heating only the desired surface. Also, the heating homogeneity is not constant.
The heating apparatus of the present invention reduces the air volume to be heated (mattress) and produces a generally constant and uniform heat that allows the control of the temperature of the desired refractory surface, and its heating time.
Summary of the invention More specifically, in accordance with the present invention, there is provided an apparatus for heating a surface of refractory material, comprising: an inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material; a heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress; and means for producing a film of heated air between the air diffusion surface of the inflatable limp mattress and the surface of refractory material. The heated air film producing means comprises the heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress and the air diffusion surface uniformly diffusing heated air from the chamber of the inflatable limp mattress over the spacing between the air diffusion surface and the surface of refractory material to produce the film of heated air which uniformly heats said surface of refractory material.
According to the invention, there is also provided an apparatus for heating a surface of refractory material, comprising: at least one inflatable limp mattress, each inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material; at least one heated air supply assembly for supplying heated air to the chamber of the at least one inflatable limp mattress, each heated air supply assembly comprising a heat exchanger providing heated air and a fan for blowing heated air from the heat exchanger to the chamber of the at least one inflatable limp mattress; and means for producing a film of heated air between the air diffusion surface of the at least one inflatable limp mattress and the surface of refractory material. The heated air film producing means comprising the at least one heated air supply assembly for supplying heated air to the chamber of the at least one inflatable limp mattress and the air diffusion surface of the at least one inflatable limp mattress for uniformly diffusing heated air from the chamber of the at least one inflatable limp mattress over the spacing between the air diffusion surface of the at least one inflatable limp mattress and the surface of refractory material to produce the film of heated air which uniformly heats said surface of refractory material.
The foregoing and other objects, advantages and features of the present invention will become more apparent upon reading of the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Brief Description of the figures In the appended drawings:
Figure 1 is a perspective view of an adaptable heating apparatus according to an embodiment of the present invention; and Figure 2 is a sectional view taken along line 2-2 in Figure 1.
Detailed description Generally stated, the present invention relates to a heating apparatus 20 which is generally movable and adapts to preheat refractory material on a surface.
The heating apparatus 20 is made of one or many mattresses 22 (only one shown) laid on the surface 24 to be heated. The number of mattresses 22 depends on the size of the area to be heated. Each mattress 22 is connected to one or many portable heating units or heated air supplying assembly 26 equipped with a fan 28 and a heat exchanger 30 that inflate the mattress 22 with warm air and create an air film between the mattress 22 and the surface 24 to be heated.
The fan 28 of each portable heating unit 26 blows air into the heat exchanger 30 which may be electrically operated (the fan 28 is generally installed before the electrical heat exchanger30). Each unit 26 may have a control 32 for the blowing speed and for the temperature, such that these units 26 can be independently controlled according to the temperature of each mattress. Each mattress 22 is generally connected to the heating unit 26 with a hose 34 which may be flexible.
As schematically shown in Figure 2, each mattress 22 has a chamber 36 defined by at least one mattress surface 38, 40 and which is filled with hot air 42 under pressure coming from the heat exchanger 30. The hot air 42 is generally diffused under the mattress 22, against the surface 24 to be heated, such that a film 44 of warm air is generated. The mattress 22 is generally easy to manipulate and its material may contain hard-wearing, very light cloth.
Each unit 26 generally uses the convection as heating medium (ventilation), the material of the mattress 22 being adapted to keep the temperature between itself and the surface 24 to be heated by radiation. The mattress 22 thickness has been chosen so as to provide an adequate insulation which allows the heated material to be kept at a generally constant temperature.
Each apparatus 20 is generally sized or calculated for a given job, depending on the area to be heated and the targeted temperature.
One of the advantages of that apparatus 20 is its lightness, and the precision and homogeneity of the temperature obtained at the specific surface 24.
During earlier trials of the prototype on a surface 24 to be heated of about 3meters by 4meters (about 10 feet by 13 feet), the differential of temperature obtained for a target of 40 C was 5 C. Therefore, this apparatus 20 allows to obtain a targeted temperature within the tolerance as per the specifications of the refractory material supplier. However, less favorable results can happen in the case where the outside temperature is below 2 C.
Although the present invention has been described hereinabove by way of an example thereof, it can be modified, without departing from the spirit and nature of the subject invention as defined in the appended claims.
Figure 1 is a perspective view of an adaptable heating apparatus according to an embodiment of the present invention; and Figure 2 is a sectional view taken along line 2-2 in Figure 1.
Detailed description Generally stated, the present invention relates to a heating apparatus 20 which is generally movable and adapts to preheat refractory material on a surface.
The heating apparatus 20 is made of one or many mattresses 22 (only one shown) laid on the surface 24 to be heated. The number of mattresses 22 depends on the size of the area to be heated. Each mattress 22 is connected to one or many portable heating units or heated air supplying assembly 26 equipped with a fan 28 and a heat exchanger 30 that inflate the mattress 22 with warm air and create an air film between the mattress 22 and the surface 24 to be heated.
The fan 28 of each portable heating unit 26 blows air into the heat exchanger 30 which may be electrically operated (the fan 28 is generally installed before the electrical heat exchanger30). Each unit 26 may have a control 32 for the blowing speed and for the temperature, such that these units 26 can be independently controlled according to the temperature of each mattress. Each mattress 22 is generally connected to the heating unit 26 with a hose 34 which may be flexible.
As schematically shown in Figure 2, each mattress 22 has a chamber 36 defined by at least one mattress surface 38, 40 and which is filled with hot air 42 under pressure coming from the heat exchanger 30. The hot air 42 is generally diffused under the mattress 22, against the surface 24 to be heated, such that a film 44 of warm air is generated. The mattress 22 is generally easy to manipulate and its material may contain hard-wearing, very light cloth.
Each unit 26 generally uses the convection as heating medium (ventilation), the material of the mattress 22 being adapted to keep the temperature between itself and the surface 24 to be heated by radiation. The mattress 22 thickness has been chosen so as to provide an adequate insulation which allows the heated material to be kept at a generally constant temperature.
Each apparatus 20 is generally sized or calculated for a given job, depending on the area to be heated and the targeted temperature.
One of the advantages of that apparatus 20 is its lightness, and the precision and homogeneity of the temperature obtained at the specific surface 24.
During earlier trials of the prototype on a surface 24 to be heated of about 3meters by 4meters (about 10 feet by 13 feet), the differential of temperature obtained for a target of 40 C was 5 C. Therefore, this apparatus 20 allows to obtain a targeted temperature within the tolerance as per the specifications of the refractory material supplier. However, less favorable results can happen in the case where the outside temperature is below 2 C.
Although the present invention has been described hereinabove by way of an example thereof, it can be modified, without departing from the spirit and nature of the subject invention as defined in the appended claims.
Claims (16)
1. An apparatus for heating a surface of refractory material, comprising:
a) an inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material;
b) a heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress; and c) means for producing a film of heated air between the air diffusion surface of the inflatable limp mattress and the surface of refractory material, said heated air film producing means comprising the heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress and the air diffusion surface uniformly diffusing heated air from the chamber of the inflatable limp mattress over the spacing between the air diffusion surface and the surface of refractory material to produce said film of heated air which uniformly heats said surface of refractory material.
a) an inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material;
b) a heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress; and c) means for producing a film of heated air between the air diffusion surface of the inflatable limp mattress and the surface of refractory material, said heated air film producing means comprising the heated air supply assembly for supplying heated air to the chamber of the inflatable limp mattress and the air diffusion surface uniformly diffusing heated air from the chamber of the inflatable limp mattress over the spacing between the air diffusion surface and the surface of refractory material to produce said film of heated air which uniformly heats said surface of refractory material.
2. An apparatus as claimed in claim 1, wherein said heated air supply assembly includes a heat exchanger for heating air.
3. An apparatus as claimed in claim 1, wherein said heated air supply assembly includes a fan for blowing air from said heated air supply assembly to the chamber of the inflatable limp mattress.
4. An apparatus as claimed in claim 1, wherein said heated air supply assembly is connected to the inflatable limp mattress through at least one hose.
5. An apparatus as claimed in claim 1, wherein said heated air supply assembly is portable.
6. An apparatus as claimed in claim 1, wherein said heated air supply assembly is electronically operated.
7. An apparatus as claimed in claim 1, wherein said heated air supply assembly further includes an air temperature control.
8. An apparatus as claimed in claim 3, wherein said heated air supply assembly further includes a speed control for the blown air.
9. An apparatus as claimed in claim 1, wherein said heated air supply assembly includes a heat exchanger and a fan positioned upstream of the heat exchanger.
10. An apparatus as claimed in claim 4, wherein said at least one hose is flexible.
11. An apparatus as claimed in claim 1, wherein said air diffusion surface is made of hard-wearing cloth.
12. An apparatus as claimed in claim 1, wherein said inflatable limp mattress includes more than one inflatable limp mattress.
13. An apparatus as claimed in claim 1, wherein said air diffusion surface includes more than one air diffusion surface.
14. An apparatus as claimed in claim 1, wherein said heated air supply assembly includes more than one heated air supply assembly.
15. An apparatus for heating a surface of refractory material, comprising:
a) at least one inflatable limp mattress, each inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material;
b) at least one heated air supply assembly for supplying heated air to the chamber of said at least one inflatable limp mattress, each of said at least one heated air supply assembly comprising:
i. a heat exchanger providing heated air; and ii. a fan for blowing heated air from the heat exchanger to the chamber of said at least one inflatable limp mattress; and c) means for producing a film of heated air between the air diffusion surface of said at least one inflatable limp mattress and the surface of refractory material, said heated air film producing means comprising said at least one heated air supply assembly for supplying heated air to the chamber of said at least one inflatable limp mattress and the air diffusion surface of said at least one inflatable limp mattress for uniformly diffusing heated air from the chamber of said at least one inflatable limp mattress over the spacing between the air diffusion surface of said at least one inflatable limp mattress and the surface of refractory material to produce said film of heated air which uniformly heats said surface of refractory material.
a) at least one inflatable limp mattress, each inflatable limp mattress comprising a chamber and an air diffusion surface for application to the surface of refractory material;
b) at least one heated air supply assembly for supplying heated air to the chamber of said at least one inflatable limp mattress, each of said at least one heated air supply assembly comprising:
i. a heat exchanger providing heated air; and ii. a fan for blowing heated air from the heat exchanger to the chamber of said at least one inflatable limp mattress; and c) means for producing a film of heated air between the air diffusion surface of said at least one inflatable limp mattress and the surface of refractory material, said heated air film producing means comprising said at least one heated air supply assembly for supplying heated air to the chamber of said at least one inflatable limp mattress and the air diffusion surface of said at least one inflatable limp mattress for uniformly diffusing heated air from the chamber of said at least one inflatable limp mattress over the spacing between the air diffusion surface of said at least one inflatable limp mattress and the surface of refractory material to produce said film of heated air which uniformly heats said surface of refractory material.
16. An apparatus as claimed in claim 15, wherein the heated air diffuses between the air diffusion surface of said at least one inflatable limp mattress and the surface of refractory material by convection.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002369160A CA2369160C (en) | 2002-01-22 | 2002-01-22 | Multi-hot aerator limp-mattress type supporting and heating systems for materials |
| US10/353,347 US20040079812A1 (en) | 2002-01-22 | 2003-01-21 | Movable heating systems |
| US10/952,877 US20050095548A1 (en) | 2002-01-22 | 2004-09-30 | Adaptable heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002369160A CA2369160C (en) | 2002-01-22 | 2002-01-22 | Multi-hot aerator limp-mattress type supporting and heating systems for materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2369160A1 CA2369160A1 (en) | 2003-07-22 |
| CA2369160C true CA2369160C (en) | 2006-10-03 |
Family
ID=27626488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002369160A Expired - Lifetime CA2369160C (en) | 2002-01-22 | 2002-01-22 | Multi-hot aerator limp-mattress type supporting and heating systems for materials |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20040079812A1 (en) |
| CA (1) | CA2369160C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10136735B2 (en) | 2014-11-19 | 2018-11-27 | Polygroup Macau Limited (Bvi) | Systems and methods for air mattress temperature control |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3965504A (en) * | 1975-05-01 | 1976-06-29 | Phillis Ainsworth | Bedding assembly |
| SE8502249L (en) * | 1985-05-07 | 1986-11-08 | Swetron Ab | VERMEMADRASS |
| US5011743A (en) * | 1990-01-22 | 1991-04-30 | Atd Corporation | Pad including heat sink and thermal insulation areas |
| US5932129A (en) * | 1995-02-27 | 1999-08-03 | Vesture Corporation | Thermal retention device |
| US6653607B2 (en) * | 2000-06-14 | 2003-11-25 | American Healthcare Products, Inc. | Heating pad systems, such as for patient warming applications |
| US6581224B2 (en) * | 2001-03-06 | 2003-06-24 | Hyun Yoon | Bed heating systems |
-
2002
- 2002-01-22 CA CA002369160A patent/CA2369160C/en not_active Expired - Lifetime
-
2003
- 2003-01-21 US US10/353,347 patent/US20040079812A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2369160A1 (en) | 2003-07-22 |
| US20040079812A1 (en) | 2004-04-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220124 |