CA1312106C - Container for heating fluids - Google Patents
Container for heating fluidsInfo
- Publication number
- CA1312106C CA1312106C CA000583456A CA583456A CA1312106C CA 1312106 C CA1312106 C CA 1312106C CA 000583456 A CA000583456 A CA 000583456A CA 583456 A CA583456 A CA 583456A CA 1312106 C CA1312106 C CA 1312106C
- Authority
- CA
- Canada
- Prior art keywords
- container
- container according
- current source
- intended
- tank
- 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
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Abstract The invention relates to a rigid container, tank, cistern, or other open or closed vessel, intended particularly, but not exclusively, for storing, heating or sustaining the temperature of a fluid, wherein resistance wires or filaments encapsulated in the material can be connected to a current source via electrodes. A significant feature of the invention is that a) the material is an electrically conductive material having the commercial designation Semicon CT 6011:70, and in that b) the material has applied externally thereto a well insulating, fire resistant material having the commercial designation Isofiber Struktur.
Description
13~ ~0~
The present invention relates to a rigid container, tank, cistern or other open or closed vessel which is made of synthetic material and intended for storing, heating, and sustaining the temperature of a fluid, the resistance wires or filaments encapsulated in the material being connectable to a current source via electrodes.
Under certai~ conditions, a container of the aforede-scribed kind would be universally useful and able to re-place many kinds of metal or synthetic-material containers at present used for varying purposes.
One reason why. containers made of s~nthetic materials have not been used widely for fluids which require a constant, temporary or variable supply of heat is, inter alia, because.of the risk that the material will become electrically conductive; because.of ~he possible risk of fire or explosion caused, inter alia, by.static elec-tricity,.when the vessel contains inflammable liquids; and because it has not been possible hi~herto to solve satis-factorily the problem of insulating the containerO
One example o~ known metal containers is found in the diesel oil tanks of diesel-driven motor vehicles. It is well known that the viscosity of diesel oil changes at low.temperatures. Consequently, so-called K-diesel is introduced as an additive for the purpose of maintaining the viscosity of the diesel oil to the greatest possible extent, so that said oil is able ~o function.as fuel for diesel engines. This mixture of diesel oil and K-diesel, however, exhibits at least two drawbacks,.namely that th~
additive is only effective at temperatures down to about -18C, and that it.is extremely difficult to extinguish ' ~, 1~12~
The present invention relates to a rigid container, tank, cistern or other open or closed vessel which is made of synthetic material and intended for storing, heating, and sustaining the temperature of a fluid, the resistance wires or filaments encapsulated in the material being connectable to a current source via electrodes.
Under certai~ conditions, a container of the aforede-scribed kind would be universally useful and able to re-place many kinds of metal or synthetic-material containers at present used for varying purposes.
One reason why. containers made of s~nthetic materials have not been used widely for fluids which require a constant, temporary or variable supply of heat is, inter alia, because.of the risk that the material will become electrically conductive; because.of ~he possible risk of fire or explosion caused, inter alia, by.static elec-tricity,.when the vessel contains inflammable liquids; and because it has not been possible hi~herto to solve satis-factorily the problem of insulating the containerO
One example o~ known metal containers is found in the diesel oil tanks of diesel-driven motor vehicles. It is well known that the viscosity of diesel oil changes at low.temperatures. Consequently, so-called K-diesel is introduced as an additive for the purpose of maintaining the viscosity of the diesel oil to the greatest possible extent, so that said oil is able ~o function.as fuel for diesel engines. This mixture of diesel oil and K-diesel, however, exhibits at least two drawbacks,.namely that th~
additive is only effective at temperatures down to about -18C, and that it.is extremely difficult to extinguish ' ~, 1~12~
~he flames of a diesel oil and K-diesel mixture should the mixture ignite. This additive also increases the price of the fuel overall. Another drawback resides in corrosion, which can give rise to fuel leakage with subsequent ~ire risk and environmental contamination.
In this case, a container made of synthetic material could fully replace vehicle fuel tanks, not only ~anks for diesel oil but also tanks for petrol or some other power means.
Containers intended ~or use in other fields, or even metal tanks and cisterns, could be replaced with containers made of synthetic materials, provided that the technical problems can be solved.
The basic concept of the invention is to provide a container of the kind described in the preamble which can be used universally, even for inflammable liquids.
The aforesaid object is achieved with a rigid container, tank, cistern, or other open or closed vessel intended particularly, but not exclusively for storing, heating, and sustaining the temperature of a fluid, in which resistance wires or filaments encapsulated in the container material can be connected to a current source via electrodes, characterized in that a) the material is an electrically conductive material having the commercial designation Semicon CT 6011:70; and in that b~ said material is provided externally with a well insulating, fire resistant material commercially designated Isofiber Struktur.
A container constructed in this way can be used as a container for the washing liquid of an automotive vehicle, thereby eliminating ,. ~
~312~
2a 22865-102 the need to use special-duty washing liquid agents. The necessary supply of heat to the container can be effected through the agency, e.g., of the vehicle battery, which serves as the current source.
The inventive container can also replace the fuel tank of a diesel-engine vehicle or the storage tanks for diesel or other oils. Because the base material from which the container is made is electrically conductive but will not generate static electricity, the heat required can be , ." ..
.31 3 ~
supplied by transforming down the mains voltage or by a vehicle battery.
In ~oth of the aforegiven examples, the insulating layer 5 ISOFIBER STRUKTUR constitutes an essential part of the invention, since this layer practically excludes the possibility of heat.leaking to the surroundings, thereby ensuring that.the smallest amount of current possible is taken from the power source. When the container is used as a vehicle fuel tank/ the outer surface of the insulating layer is conveniently coated with a further material, e.g.
PVC, capable of forming a first pxotection.means against, for instance, the impact of gravel or the like from the road surface~
The resistance wires or filaments encapsulated in the ; base material Semicon CT 6011:70.are dimensioned in accordance with the size of the container and the esti-mated energy requirement for heating and temperature-sustaining purposes.
It.will be understood.by those.skilled in this art that the problem of controlling the voltage.supply automatic-ally can be solved in many ways not dis~losed in.this document and not forming part of the.present invention.
Washing.machine drums, tumbl~er-dryer drums and water heaters are all examples of fields in which metallic : material has hitherto been used but in which a container constructed.in accordance with the invention would provide a good substitute. In these cases, a three-phase alter-nating current is generally usedj and to eliminate the risk o~ such machines becoming electrically conductive, the inner surfaces of the base mat~rial, i.e. Semicon CT 6011:70 should be coated with an electrically insula-1~12~
ting but heat-permeable layer, for example TEFLON (regis-tered trade mark).
Othe~ fields include systems for storing, e.g., syrup, which readily thickens at low ~emperatures. Vehicles intended for transporting large volumes of mutually dif-ferent fluids which require the temperature thereof to be maintained within given limits can be e~uipped with con-~ainers const~ucted in accordance with the inventive principles.
The layer of insulating material applied externally on the container material, mainly the material sold under the designation Isofiber Struktur and sold, inter alia, Svel-vik Fiber A/S,:Svelvik, Norway, is fireproof and can alsobe exposed to flame wi~hout risk to the ¢ontents of the container, even should these contents be inflammable.
The insulating material is, furthermore, a very effective insulating material, thereby enabling heat losses from the container to be maintained at negligible levels, which guarantees that the amount of current consumed for heating and heat-sustaining purposes can be maintained at an optimally low level. The material is also resistant, e.g., to attack by mold. A co~tainer which is manufactured in accordance with the invention will need practically no maintenance, with the exception of those faults which possibly occur in the current source.
Irrespective of *he kind of current supply system used, it will be understood that all monitoring devices can be readily mounted in a small, separate control box. No control devices, monitoring devices or heating de~ices are found within the container, thereby enabling the container to be produced in a technically simple manner.
.
1~12~ ~6 The single figure of the accompanying drawing is a longitudinal sectioned view of an exemplifying embodiment of a tank constructed in accordance with the invention, namely a fuel tank for a diesel-driven motor vehicle.
When seen from outside, the container, or tank, comprises, or instance, a PVC-layer 10, inwardly of which there is applied an insulating layer 11, designated "Isofiber Struktur", the thickness of which will vary in dependence on the use for which the container is intended. Finally, there is applied the material 12, designated Semicon CT
~011:70, which is an electrically conductive material which encapsulates fully protected resistance wires or filaments, thus having properties which are known per se.
The container material 12 is connected via electrodes to a current source (not shown) in a manner well known to the skilled person, said current source either being the con-ventional mains supply, optionally transformed to a lower voltage level, or having the form of at least one con-ventional 12 volt battery.
Although the inventive container is of simple construction, it aEfords a surprising technical effect within, inter alia, the aforesaid fields. Compared with container types known hitherto, the manufacturing costs are significantly lower. Although the materials u~ilized in producing the composite structure are each known per se, it is not be-lieved, or known, that the concept of combining these two materials for the purpose of achieving the aforedescribed uni~ue results have ~een previously realized.
In this case, a container made of synthetic material could fully replace vehicle fuel tanks, not only ~anks for diesel oil but also tanks for petrol or some other power means.
Containers intended ~or use in other fields, or even metal tanks and cisterns, could be replaced with containers made of synthetic materials, provided that the technical problems can be solved.
The basic concept of the invention is to provide a container of the kind described in the preamble which can be used universally, even for inflammable liquids.
The aforesaid object is achieved with a rigid container, tank, cistern, or other open or closed vessel intended particularly, but not exclusively for storing, heating, and sustaining the temperature of a fluid, in which resistance wires or filaments encapsulated in the container material can be connected to a current source via electrodes, characterized in that a) the material is an electrically conductive material having the commercial designation Semicon CT 6011:70; and in that b~ said material is provided externally with a well insulating, fire resistant material commercially designated Isofiber Struktur.
A container constructed in this way can be used as a container for the washing liquid of an automotive vehicle, thereby eliminating ,. ~
~312~
2a 22865-102 the need to use special-duty washing liquid agents. The necessary supply of heat to the container can be effected through the agency, e.g., of the vehicle battery, which serves as the current source.
The inventive container can also replace the fuel tank of a diesel-engine vehicle or the storage tanks for diesel or other oils. Because the base material from which the container is made is electrically conductive but will not generate static electricity, the heat required can be , ." ..
.31 3 ~
supplied by transforming down the mains voltage or by a vehicle battery.
In ~oth of the aforegiven examples, the insulating layer 5 ISOFIBER STRUKTUR constitutes an essential part of the invention, since this layer practically excludes the possibility of heat.leaking to the surroundings, thereby ensuring that.the smallest amount of current possible is taken from the power source. When the container is used as a vehicle fuel tank/ the outer surface of the insulating layer is conveniently coated with a further material, e.g.
PVC, capable of forming a first pxotection.means against, for instance, the impact of gravel or the like from the road surface~
The resistance wires or filaments encapsulated in the ; base material Semicon CT 6011:70.are dimensioned in accordance with the size of the container and the esti-mated energy requirement for heating and temperature-sustaining purposes.
It.will be understood.by those.skilled in this art that the problem of controlling the voltage.supply automatic-ally can be solved in many ways not dis~losed in.this document and not forming part of the.present invention.
Washing.machine drums, tumbl~er-dryer drums and water heaters are all examples of fields in which metallic : material has hitherto been used but in which a container constructed.in accordance with the invention would provide a good substitute. In these cases, a three-phase alter-nating current is generally usedj and to eliminate the risk o~ such machines becoming electrically conductive, the inner surfaces of the base mat~rial, i.e. Semicon CT 6011:70 should be coated with an electrically insula-1~12~
ting but heat-permeable layer, for example TEFLON (regis-tered trade mark).
Othe~ fields include systems for storing, e.g., syrup, which readily thickens at low ~emperatures. Vehicles intended for transporting large volumes of mutually dif-ferent fluids which require the temperature thereof to be maintained within given limits can be e~uipped with con-~ainers const~ucted in accordance with the inventive principles.
The layer of insulating material applied externally on the container material, mainly the material sold under the designation Isofiber Struktur and sold, inter alia, Svel-vik Fiber A/S,:Svelvik, Norway, is fireproof and can alsobe exposed to flame wi~hout risk to the ¢ontents of the container, even should these contents be inflammable.
The insulating material is, furthermore, a very effective insulating material, thereby enabling heat losses from the container to be maintained at negligible levels, which guarantees that the amount of current consumed for heating and heat-sustaining purposes can be maintained at an optimally low level. The material is also resistant, e.g., to attack by mold. A co~tainer which is manufactured in accordance with the invention will need practically no maintenance, with the exception of those faults which possibly occur in the current source.
Irrespective of *he kind of current supply system used, it will be understood that all monitoring devices can be readily mounted in a small, separate control box. No control devices, monitoring devices or heating de~ices are found within the container, thereby enabling the container to be produced in a technically simple manner.
.
1~12~ ~6 The single figure of the accompanying drawing is a longitudinal sectioned view of an exemplifying embodiment of a tank constructed in accordance with the invention, namely a fuel tank for a diesel-driven motor vehicle.
When seen from outside, the container, or tank, comprises, or instance, a PVC-layer 10, inwardly of which there is applied an insulating layer 11, designated "Isofiber Struktur", the thickness of which will vary in dependence on the use for which the container is intended. Finally, there is applied the material 12, designated Semicon CT
~011:70, which is an electrically conductive material which encapsulates fully protected resistance wires or filaments, thus having properties which are known per se.
The container material 12 is connected via electrodes to a current source (not shown) in a manner well known to the skilled person, said current source either being the con-ventional mains supply, optionally transformed to a lower voltage level, or having the form of at least one con-ventional 12 volt battery.
Although the inventive container is of simple construction, it aEfords a surprising technical effect within, inter alia, the aforesaid fields. Compared with container types known hitherto, the manufacturing costs are significantly lower. Although the materials u~ilized in producing the composite structure are each known per se, it is not be-lieved, or known, that the concept of combining these two materials for the purpose of achieving the aforedescribed uni~ue results have ~een previously realized.
Claims (8)
1. A rigid container, tank, cistern, or other open or closed vessel intended particularly, but not exclusively, for storing, heating, and sustaining the temperature of a fluid, in which resistance wires or filaments encapsulated in the container material can be connected to a current source via electrodes, characterized in that a) the material is an electrically conductive material having the commercial designation Semicon CT 6011:70;
and in that b) said material is provided externally with a well in-sulating, fire resistant material commercially designated Isofiber Struktur.
and in that b) said material is provided externally with a well in-sulating, fire resistant material commercially designated Isofiber Struktur.
2. A container according to claim 1, characterized in that the outer surface of the insulating material is coated with a layer, for instance, of PVC-material which forms the outer layer of the container.
3. A container according to claim 1, characterized in that the container is intended to store temperature-sensitive fluid, such as oil, petrol, syrup or the like, whose properties are impaired at low or very low tempera-tures.
4. A container according to claim 1, characterized in that said container is a fuel tank, particularly a fuel tank for diesel-driven vehicles.
5. A container according to claim 1, characterized in that the container is intended for storing washing liquid in vehicle washing systems.
6. A container according to claim 1, characterized in that a thin insulating layer of, e.g., Teflon? is applied on the inner surface of the container, said container being the drum of the washing machine or some other con-tainer where the current source is other than a low volt-age source.
7. A container according to claim 1, characterized in that the container is a water heater.
8. A container according to claim 1, characterized in that the container is used for both inflammable and non-inflammable fluids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000583456A CA1312106C (en) | 1988-11-18 | 1988-11-18 | Container for heating fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000583456A CA1312106C (en) | 1988-11-18 | 1988-11-18 | Container for heating fluids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1312106C true CA1312106C (en) | 1992-12-29 |
Family
ID=4139126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000583456A Expired - Lifetime CA1312106C (en) | 1988-11-18 | 1988-11-18 | Container for heating fluids |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1312106C (en) |
-
1988
- 1988-11-18 CA CA000583456A patent/CA1312106C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |