The present invention relates generally to a fuel storage and distribution and, more particularly, to a system and method for storing liquid and gaseous fuels in an elevated and modular arrangement.
Fuel storage and distribution stations are heavily demanded globally, as more and more automobiles are put into service on roads to meet the transportation demands of an ever-expanding population. The construction and operation of conventional fuel distribution and service stations, however, are lengthy, costly and resource-consuming undertakings. Surveys and studies of anticipated demand must be commissioned, the station must be designed in a configuration sufficient to meet the anticipated demand, permits must be pulled, and a lengthy construction process must be commenced and completed before a single gallon of gasoline may be pumped.
Notwithstanding resource-consuming undertakings for their construction and operation, conventional fuel distribution stations have numerous drawbacks with respect to environmental, safety, and maintenance concerns. First, fuel distribution stations are classified as objects of a potentially high environmental impact. For example, automotive fuels are typically stored in underground tanks from which the fuel is pumped to a fuel dispenser before going into an automobile. These tanks are typically constructed of metal or fiberglass. Underground installation of these tanks requires relatively extensive excavation and coverage, thereby creating many potential problems. One known problem associated with underground fuel tanks is leakage or seepage into the surrounding soil. This is particularly true of metallic tanks, which can corrode or degrade over time, especially in moist soil. Seepage into the surrounding soil results both in the steady loss of fuel and environmental (soil and water) pollution. Moreover, in case of flooding, the tanks installed underground are inefficient and the fuel in them may be contaminated with water and with sediments within the water.
Moreover, fuel tanks are buried underground beneath the structure of the station with a thick concrete disposal block on top of the tank, making it hard to perform maintenance work on the fuel tanks. Once a fuel tank is found to be dysfunctional, the cost of repairing and replacing the faulty underground fuel tank can be extremely expensive.
Another drawback associated with the conventional fuel storage and distribution stations is the inability to change the configuration of the station in terms of either capacity or type of fuel offered. Today, the use and demand of alternative energy fuels for transportation is increasing at a rapid pace, and the types of fuel demanded and the consumption rates thereof can be expected to increase drastically from what has been seen to date. Accordingly, new generations of fuel distribution stations must be flexible in terms of their size and the types of fuel that they can store and dispense in response to dynamically changing markets.
In view of the above, there is a need for a fuel storage and distribution station that is capable of safely storing a variety of fuel types, with a minimal environmental impact, and which can easily be modified or reconfigured to meet changing fuel demands.
With the foregoing concerns and needs in mind, it is the general object of the present invention to provide a system for storing and/or distributing liquid and gaseous fuels.
It is another object of the present invention to provide a system for storing fuel in an elevated position above ground.
It is another object of the present invention to provide a system for storing fuel that is modular in nature so that changes in fuel demand and type can be easily accommodated.
These and other objects of the present invention, and their preferred embodiments, shall become clear by consideration of the specification, claims and drawings taken as a whole.
In an embodiment, a system for storing fuel includes a support structure supporting at least one fuel tank a predetermined distance above ground. The fuel tank includes an inner tank configured to contain a gaseous fuel, an intermediate tank encompassing the inner tank and defining a first annular space therebetween, and an outer tank encompassing the intermediate tank an defining a second annular space therebetween. The first annular space is filled with a shock-absorbing resin for absorbing structural stresses, while the second annular space is filled with an insulating material providing for fire and ballistic resistance. The intermediate tank is connected to the support structure and to at least one adjacent fuel tank, and prevents the transfer of load to the inner tank. The fuel tanks, themselves serve as the structural support members for the system, obviating the need to employ stand-alone load bearing beams and members.
The present invention will be better understood from reading the following description of non-limiting embodiments, with reference to the attached drawings, wherein below:
Referring to
In an embodiment, the entire system 100 and components thereof, including the fuel tanks 108 and legs 102, 104, are of at least a double-wall construction for fire protection and impact resistance. For example, each tank 108 includes an outer wall 112 and an inner wall 114. In an embodiment, the space between the outer wall 112 and the inner wall 114 of each tank may be filled with a fire and ballistic resistant material 116, as discussed in detail hereinafter. Likewise, each of the legs 102, 104 may be of a double-wall construction, having an outer wall 118 and an inner wall 120.
Importantly, the legs and fuel storage tanks, via their double wall construction, have a fire resistance rating of at least 2½ hours, are ballistic proof, and meet the U.S. Department of State's vehicle impact requirements for K12 rating (i.e., less than 36 inch impact penetration for a 15,000 lb. vehicle traveling 50 mph). This construction provides an integral, strong structure with a high structural stress capacity.
As further shown in
Turning now to
In an embodiment, the entire system 300 and components thereof, including the fuel tanks 308 and legs 102, like system 100 are of a double-wall construction for fire protection and impact resistance. Moreover, like the system 100 of
Turning now to
As discussed above, the entire system 400 and components thereof, including the fuel tanks 408 and legs 402, like systems 100 and 300 are of a double-wall construction for fire protection and impact resistance. Moreover, like the system 100 of
Referring now to
In use, the high pressure gas is contained within the inner tank 430 while the resin within the first annular space 436 functions as a shock absorber or structural stresses between the inner tank 430 and the intermediate tank 432. As shown in
In addition to the above, the thermal insulating material within the second annular space 438 serves as an insulating layer, providing for both fire resistance and ballistic protection. In an embodiment, the thermal insulating material within the annular space 438 may be Pyrolite (monolithic cement with perlite) or other insulating material. The outer tank 434, for its part serves as a containment vessel for the system 400 and as protection from the elements. Each of the tanks 430, 432, 434 may be formed from steel, although other materials known in the art may also be utilized without departing from the broader aspects of the invention.
Importantly, the triple walled tank 408 eliminates any structural stress on the inner tank 430 which holds the gaseous fuel. As further illustrated in
While the systems described above are shown as stand-alone fuel storage systems, the present invention is not so limited in this regard. In particular, in addition to storing fuel, the systems may be configured to likewise dispense fuel for industrial, commercial and passenger automobile use.
Although this invention has been shown and described with respect to the detailed embodiments thereof, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed in the above detailed description, but that the invention will include all embodiments falling within the scope of this disclosure.
This application is a divisional of U.S. patent application Ser. No. 15/730,117 filed on Oct. 11, 2017, which claims the benefit of U.S. Provisional Application Ser. No. 62/406,606, filed on Oct. 11, 2016, which are incorporated by reference herein in their entireties.
Number | Date | Country | |
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62406606 | Oct 2016 | US |
Number | Date | Country | |
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Parent | 15730117 | Oct 2017 | US |
Child | 15929851 | US |