MXPA97004305A - Rectangular tank for fuel storage - Google Patents

Abstract

This invention relates to a fuel storage tank with floating interior roof to be used in service stations (gas stations) or distribution centers. The problem is that currently in the service stations are installed and there are storage tanks of horizontal cylindrical type, which are buried under the ground, which by their design, construction and operation conditions are constantly sending to the atmosphere hydrocarbon vapors during his continuous activity. In essence, this invention is to provide a storage tank totally different from those currently on the market, because thanks to its novel, internal and external construction, which meets the specifications of Pemex and whose main feature is the placement of a floating interior roof, which prevents the evaporation of fuel and also cooperates with the protection of the environment "air" and therefore the health of the population.

Description

RECTANGULAR TANK FOR THE STORAGE OF COMBUSTIBLES BACKGROUND OF THE INVENTION NOW THE TANKS FOR THE STORAGE OF FUELS IN THE SERVICE STATIONS ARE TYPE HORIZONTAL CYLINDER, ONE OR DOUBLE STEEL WALL. SUCH TANKS ARE REGULARLY INSTALLED UNDER YOU ERRA Y OPERATE AT ATMOSPHERIC PRESSURE. THESE HORIZONTAL CYLINDRICAL TANKS, EST N FOR? ADOS SEE THE PROJECT SPECIFICATIONS AND CONSTRUCTION OF .SERVICE STATIONS. FOR A CONSIDERABLE NUMBER OF PARTS OR COMPONENTS THAT COULD GENERALLY BE ABLE TO DETAIL AS: - BODY AND CAPS: STEEL WITH STEEL STEEL WITH GLASS FIBER GLASS FIBER WITH STEEL GLASS FIBER WITH POLYETHYLENE - MAN INPUT FOR INSPECTION INSIDE THE TANK - COPLE OF STEEL FOR POSITION OF LEAK DETECTOR BETWEEN TANK AND T.VNQUE (ONLY IN DOUBLE BODY TANK). - STEEL COPPER FOR POSITION OF: DISCHARGE CONTAINER STEAM RETURN MEASUREMENT INVENTORIES PURGE IT IS ABLE TO MAKE THE MENTION THAT THESE TYPES OF TANKS OF HORIZONTAL CYLINDRICAL STORAGE, ARE FOUND IN CONSTANT FORM SENDING TO THE ATMOSPHERE VAPORS OF HYDROCARBONS, WHICH DEPART FROM THE COMBUSTIBLES STORED IN THEMSELVES. THESE VAPORS THEY ARE GENERATED BECAUSE THERE ARE ONES INSIDE THE TANK AIR CHAMBERS OCCUPYING THE EMPTY SPACE THAT THERE ARE IN THE SAME AND WHEN TO ENTER CONTACT OR CHOCAR THIS AIR CHAMBER WITH THE LIQUID IS PRODUCED BY THE TEMPERATURE DIFFERENTIAL BETWEEN THEM, THE DEPRIVATION OF THE VAPORS ALREADY REFERRED. HYDROCARBON VAPORS FORM A GAS CHAMBER IN THE INSIDE OF STORAGE TANKS, SAME AS THE EMPTY SPACES OF SUCH TANKS ARE LOCATED OR OCCUPIED. IN VOLUME THIS GAS CHAMBER IS PROPORTIONAL TO CERTAIN PHYSICAL-CHEMICAL PROPERTIES OF THE PRODUCT CONTENT, TO THE CAPACITY OF THE STORAGE TANK TO EXISTING EMPTY SPACE AND CERTAIN CONDITIONS CLIMATOLIGICAS. CURRENTLY THE PROBLEM CONSISTS OF POLLUTION OF THE ENVIRONMENT "AIR" WHICH IS PRODUCED IN PART BY THE HYDROCARBON VAPORS THAT DEPART FROM STATIONARY SOURCES AS THE TANKS OF STORAGE OF COMBUSTIBLES, SAME AS IN ITS MOSTLY ARE INSTALLED IN THE STATIONS OF SERVICE (GAS STATIONS) OR DISTRIBUTION CENTERS COMBUSTIBLES THE GAS CHAMBER CAN BE FORMED THROUGH A DYNAMIC CONDITION OR A STATIC CONDITION IN THE STORAGE TANK. THE DYNAMIC CONDITION IN THE STORAGE TANK IT CAN BE WHEN: - IT IS FILLING THE STORAGE TANK AND IN THAT INSTANT A GAS VOLUME IS SENT TO THE ATMOSPHERE EQUAL TO THE PRODUCT RECEIVED (SEE FIGURE No.- 1).

IT IS REMOVING PRODUCT FROM THE TANK AND IN THAT MOMENT ALSO BE INCLUDED AIR OF THE ENVIRONMENT ENVIRONMENT, WHICH COMES INTO CONTACT WITH THE FUEL FORM A PART OF STEAM OF HYDROCARBON INSIDE THE EXISTING GAS CHAMBER (SEE FIGURE No.- 2). THE STATIC CONDITION IS PRESENTED WHEN IN THE TANK OF ALMACENAMIETO IT DOES NOT RECEIVE OR EXTRACT PRODUCT AND THE GAS CHAMBER WHICH IS IN THE TANK RETURNS AT EVERY MOST RICH MOMENT IN HYDROCARBON VAPORS.

HERE THE IMPORTANT THING IS WHEN THE TANK IS FILLED THAT RICH MIX IN HYDROCARBONS VAPORS WILL BE SENT TO THE ATMOSPHERE CAUSING A SERIOUS PROBLEM OF POLLUTION (SEE FIGURE No.- 3). WITH THE PURPOSE OF REMOVING THIS SERIOUS PROBLEM AND AS WELL AS SOME OTHER INCONVENIENCES, IT WAS THOUGHT THE DEVELOPMENT OF THIS STORAGE TANK OF FUEL RECTANGULAR TYPE AND WITH FLOATING INTERIOR CEILING, THE SAME IS WHICH IT IS INTENDED TO PROTECT THROUGH THE PRESENT APPLICATION, AS IT IS A DEVICE INTEGRATED BY ONLY ONE ADDITIONAL ELEMENT (CEILING FLOATING) TO THOSE THAT ALREADY EXIST ON THE MARKET, SAME WHAT MAKES IT NOVEDOSO AND MORE EFFICIENT. DESCRIPTION OF THE INVENTION THIS INVENTION REFERS TO A RECTANGULAR TANK FOR THE STORAGE OF FUELS, DOUBLE WALL TYPE OF STEEL, ITSELF THAT HAVE ITS INTERIOR WITH A CEILING FLOATING THAT SERVES TO PREVENT THE GENERATION OF VAPORS AND THEREFORE PREVENT THE POLLUTION OF THE AIR OF THE ENVIRONMENT.

THE FINAL DESTINY OF THIS PRODUCT WILL BE THE SERVICE STATIONS (GAS STATIONS) OR DISTRIBUTION CENTERS.

THE RECTANGULAR TANK FOR THE STORAGE OF COMBUSTIBLES DERIVED FROM PETROLEUM AND WITH CEILING FLOATING INTERIOR, IS FORMED BY THE COMBINATION OF TWO BODIES OR STEEL METAL CONTAINERS ASTM A 36, WHICH IS UNITED OR ASSEMBLED ACCORDING TO INTERNATIONAL STANDARD API 650. THE INTERIOR TANK IS DENOMINATED "PRIMARY", THE EXTERNAL TANK IS DENOMINATED '* SECONDARY "AND BETWEEN BOTH BY MEANS OF ELEMENTS OF STEEL SOLDIERS IN FOUND WAY (ONE TO THE INNER TANK AND THE OTHER TO THE OUTSIDE TANK AND SO SUCCESSIVELY) AN ELIMINATED SPACE IS CREATED WHICH IS TO BE MONITORED BY MEANS OF A VACUUM OR VACUUM METER THE POSSIBLE LEAKS OF THE BODIES.

ON THE OUTER FACE OF THE SECONDARY TANK THE STEEL COVERS THAT SERVE FOR THE PLACEMENT OF THE ACCESSORIES REQUIRED IN THE OPERATION BY THE TANKS OF STORAGE OF FUELS. A DIFFERENCE FROM THE CYLINDRICAL TYPE TANK, THE TANK RECTANGULAR HAS AN INTERIOR CEILING, SAME AS FLOATING ON THE LIQUID OR CONTAINED FUEL. THE GAS CHAMBER THAT IS FORMED IN THE HORIZONTAL CYLINDRICAL TYPE TANKS THAT ARE THE ONE THAT CONTAMINATES THE ENVIRONMENT "AIR M DOES NOT EXIST IN THE TANKS RECTANGULAR WITH FLOATING INTERIOR CEILING, BECAUSE THIS WILL AVOID WITHIN THE STORAGE TANK CONTACT OF THE AIR OF THE ENVIRONMENT WITH THE FUEL BEING THIS, THE ADVANTAGEOUS EFFECT OF THE PRESENT INVENTION. IN THE PERIMETER OF THAT MEMBRANE THERE ARE ELEMENTS FLEXIBLE THAT SEAL AND AVOID THE STEAMING OF VAPORS THAT THEY COME OUT OF THE COMBUSTIBLES, BEING ABSORBED ALSO THE SMALL DEFORMATIONS THAT COME TO - PRESENT IN THE BODY OF THE PRIMARY TANK. OTHER ADDITIONAL ADVANTAGES TO AVOID THE AIR POLLUTION BY STATIONARY SOURCES EMISSIONS OF HYDROCARBON VAPORS, WE COULD HIGHLIGHT THE FOLLOWING: a) .- THE SECURITY IN THE FACILITIES IS IMPROVED SUBSTANTIALLY SINCE THE RISKS BY FIRE OR EXPLOSIONS WILL DECREASE. b) .- IF WE COMPARE A CYLINDRICAL TANK WITH ONE RECTANGULAR OF THE SAME DIMENSIONS, WE WILL NOTICE THAT IN THE RECTANGULAR TYPE WILL HAVE GREATER STORAGE CAPACITY. c) .- THE CIVIL WORKS REQUIRED TO INSTALL A TANK OF RECTANGULAR TYPE IS CHEAPER THAT FOR THE CYLINDER TYPE. d) .- THE COST OF GLOBAL INVESTMENT IS LESS, SINCE THE AREA INTENDED FOR THE INSTALLATION OF STORAGE TANKS IS LESS IF TANKS ARE INSTALLED TYPE RECTANGULAR THAT OF CYLINDER TYPE (IF THE STORAGE CAPACITIES ARE EQUAL). THE CHARACTERISTIC DETAILS OF THIS TANK OF STORAGE WITH FLOATING INTERIOR CEILING, ARE CLEARLY INDICATED IN THE FOLLOWING DESCRIPTION AND IN THE DRAWINGS THAT ACCOMPANY. FIGURE No.- 4 IS A DRAWING "PLANTA M DEL TANQUE STORAGE TYPE RECTANGULAR AND IN WHICH ARE SHOWN THE FOLLOWING COMPONENTS: - MAN INPUT - POSITION FOR LEAK DETECTOR IN ANCHORAGE SPACE - POSITION FOR PROBE OF INVENTORY MEASUREMENT - POSITION FOR FUEL DISCHARGE - POSITION FOR VAPOR RETURN - POSITION FOR PURGING TANKS - ELEMENTS OF STEEL (SOLDIERS IN FORM FOUND) FIGURE No.- 5 IS A DRAWING "LATERAL CUT" OF THE TANK OF STORAGE AND IN WHICH THE FOLLOWING DETAILS CAN BE APPRECIATED: - DIVER PIPE FOR LEAK DETECTOR IN ANTIQUE SPACE - SUBMERSIBLE PUMP TUBE PIPE - PIPE FOR INVENTORY MEASUREMENT PROBE - PIPE FOR OVERHEAD VALVE - PIPE FOR PURGING TANK - FLOATING INTERIOR MEMBRANE - FLEXIBLE CEILINGS OF FLOATING CEILING (SIDE) - STEEL ELEMENTS (SOLDIERS IN SHAPE FOUND) FIGURE No.- 6 IS THE REPRESENTATION OF A "FRONT COURT" OF THE STORAGE TANK AND IN WHICH THE FOLLOWING DETAILS CAN BE APPRECIATED: - FLOATING INTERIOR MEMBRANE - FRONTAL FLEXIBLE SEALS - DEFINED SPACE BETWEEN TANK AND TANK - STEEL ELEMENTS (SOLDIERS FOUND INTO FOUND) THE DOUBLE BODY OR METAL CONTAINER IS BUILT TO STARTING ASTM A 36 STEEL PLATE AND WHICH IS ASSEMBLED DF AQUERO TO THE INTERNATIONAL STANDARD API 650. THE CALIBERS OR THICKNESS OF THE STEEL PLATE WILL DEPEND ON THE NOMINAL STORAGE CAPACITY REQUIRED, BUT INVARIABLY MUST BE ADJUSTED TO THE ESTABLISHED IN THE NEXT TABLE : NOMINE CAPACITY MAXIMUM HEIGHT PLATE THICKNESS (LTS) (MTS.) Mm (IN.) 40,000 3.27 6.35 (1/4) 50,000 3.27 7.94 (5/16) 60,000 3.27 7.94 (5/16) 80,000 3.27 9.52 (3/8 ) 100,000 3.27 9.52 (3/8) THE EXTERNAL TANK WILL BE OF ASTM 36 STEEL PLATE 3/16"FLOATING ROOF IS BUILT WITH STAINLESS STEEL STRUCTURAL SHEETS AND PROFILES, WHICH ARE ASSEMBLED THROUGH SCREWS, THE PERMIETRAL SEAL IS OF A FLEXIBLE PLASTIC MATERIAL LONG DURABILITY AND ARE PLACED IN SUCH A WAY THAT AVOID THE CONTACT OF THE AIR WITH THE LIQUID. EFFICIENCY IN THE STORAGE TANK WITH THE ROOF FLOATING INTERIOR, RESIDUES WHERE IT COMES IF IT IS TAKEN OR IT IS IN THAT SAME SENSE, THIS IS, IT RISES WHEN IT FILLS AND LOWS WHEN TANUE PRODUCT IS RETIRED (HELPED BY INTERIOR TUBES THAT SERVE AS A GUIDE), BUT KEEPING ALWAYS IN BOTH CASES A CONTINUOUS CONTACT OF THE FLOATING ROOF WITH THE LIQUID.

THE FLOATING CEILING IS BUILT WITH STAINLESS STEEL STRUCTURAL SHEETS AND PROFILES, WHICH ARE ASSEMBLED OR JOINED BY SCREWS. SEALS PERIMETRALS ARE OF LONG PLASTIC FLEXIBLE MATERIAL DURATION OR LIFE AND THEY ARE PLACED IN SUCH A WAY THAT AVOID THE STEAMING OF VAPORS. THE INTERIOR CEILING FLOATS ON THE LIQUID CONTAINED IN THE TANK IS GUIDED TO HIS UPWARD OR DESCENDANT WORK BY MEANS OF A SERIES OF PIPES PLACED IN THE INSIDE THE TANK (SEE FIGURE No- 5 and No.- 6). THAT SERIES OF TUBES PLACED IN THE INTERIOR TANK, WILL ALSO BE PROPERLY SEALED WITH FLEXIBLE MATERIAL.

ON THE TRAVELS OF THAT FLOATING CEILING THEIR CHAMBER IS CREATED AIR PROPORTIONAL TO DISPLACED VOLUMES OF LIQUID. SAID AIR CHAMBERS DO NOT COME IN CONTACT WITH THE FUEL, AS THEY ARRIVE OR CHOCK WITH THE SAME CEILING INTERIOREVITATING THE CONTACT WITH THE LIQUID AND THEREFORE THE EVAPORATION OF THE FUEL. THE STRUCTURAL BEHAVIOR OF THE TANK OF STORAGE IS SAFE AND RELIABLE, BECAUSE BETWEEN THE INTERNAL TANK AND EXTERNAL TANK THERE IS A SERIES OF REINFORCEMENTS (ELEMENTS OF STEEL) WHICH IN ADDITION TO PROPORCTION RESISTANCE SERIES TO CREATE THE DEFINED ANCHORAGE SPACE (SEE DRAWING No.- 7). IT IS PLEASURE TO PLEAD THE CLARIFICATION THAT THE TANK OF STORAGE AS SUCH, CU? XfPLE WITH THE STANDARDS AND SPECIFICATIONS OF PROJECT AND CONSTRUCTION OF SERVICE STATIONS PUBLISHED BY PEMEX (EDITION 1993) AND WITH THE INCORPORATION OF THE FLOT VNTE INTERIOR CEILING IT IS POSITIVELY EXCEEDED TO THOSE RULES. SPECIFIC DESCRIPTION OF DRAWINGS FIGURE No.- l. HERE WE CAN APPRECIATE THAT AN AUTOTANQI E O PIPA CONTAINING FUEL (1) DOWNLOAD YOUR PRODUCT THROUGH A HOSE (2) AND THROUGH ANOTHER HOSE (3) THE GASES CONTAINED IN THE C MARA ARE COLLECTED OF AIR. BOTH HOSES ARE CONNECTED IN A HERMETIC FORM TO THE TANK. THE STORAGE TANK DOUBLE CONTAINER OR BODY (4) HAS INSIDE AN ALUMINUM STRUCTURE FORMING THE FLOATING ROOF (5) AND WHICH IN ALL OF YOUR PERIPHERY CONTAINS ONE FLEXIBLE ELEMENTS OR SEALS (6) THAT AVOID THE CONTACT OF THE EXTERIOR AIR AND THE FUEL. ALSO ACCOUNT WITH THE POSITION FOR THE DETECTION OF LEAKS IN SPACE ANNULAR (7), VAPOR RETURN AND VENTILATION LINE (8) AND POSITION FOR THE INTERNAL PURGE OF THE TANK (9) FIGURE No.- 2. HERE WE CAN THE OTHER STAGE OF THE DYNAMIC CONDITION AND IN WHICH THE VEHICLES (1) WHICH GENERALLY CIRCULATE BY OUR CITIES OR ROADS USAN PETROEL REFINED FUELS (GASOLINE), WHICH ALSO THEY ARE GENERALLY SUPPLIED BY A DISPENSARY OR DISPACHING PUMP (2) THAT TOTALIZES WEIGHTS AND / OR LITERS. THESE DIPENSERS RECEIVE THE FUEL SENT BY A SUBMERSIBLE PUMP (3), SAME AS EXTRACTED THE PRODUCT CONTAINED IN THE STORAGE TANK (4) AND WHICH COVERS INSIDE WITH A STRUCTURE OF ALUMINUM (5) THAT SERVES TO FORM THE FLOATING CEILING PERIPHERY HAS FLEXIBLE STAMPS (6) THAT AVOID THE CONTACT OF THE EXTERIOR AIR AND THE FUEL. ACCOUNT ALSO WITH A POSITION FOR LEAK DETECTION IN SPANISH SPACE (7), A POSITION FOR THE RETURN OF AND VENTILATION (8) AND POSITION FOR PURGING THE INTERIOR TANK (9). FIGURE No.- 3. IT IS THE STATIC CONDITION OF THE TANK OF STORAGE (1) AND IN WHICH YOU CAN APPRECIATE THE ALUMINUM STRUCTURE (2) WHICH FORM THE INTERIOR CEILING FLOATING AND FLEXIBLE SEALS (3) THAT AVOID THE CONTACT OF THE EXTERIOR AIR WITH THE FUEL.

FIGURE No.- 4. THIS DRAWING SHOWS A VIEW OF THE PLANT OF THE STORAGE TANK WITH DOUBLE BODY OF PLATE OF ACER OR SOLDADA (Í A BODY I NTERIOR OF DIFFERENT THICKNESS DEPENDING ON THE NOMINAL TANK CAPACITY AND 1 B BODY OR OUTSIDE TANK 3/16"THICKNESS), COPLE STEEL CED. 40 DE 2"DIAMETER FOR SERVICE, PURGED TANK (2) STEEL COPLE OF 4"DIAMETER FOR SERVICE OF FUEL DISCHARGE (3), STEEL COPLE OF 4"OF DIAMETER CELL 40 FOR VAPOR RETURN SERVICE (4), STEEL COPLE OF 4"OF DIAMETER CELL 40 FOR PROBE SERVICE MEASUREMENT OF INVENTORIES (5) ENTRY MAN OF 24"OF STEEL PLATE DIAMETER (6) (FOR CLEANING AND INSPECTION INSIDE THE TANK) AND WITH INCRUSTATION OF COPLE OF 4"OF DIAMETER CEDULA 40 FOR INSTALLATION OF SUBMERSIBLE PUMP (7) AND COPPER OF STEEL OF 2"OF DIAMETER CELL 40 FOR THE INSTALLATION OF INDICATOR OF A VACUUM OR LEAK SENSOR IN AN ANNULAR SPACE (8) AND ELEMENTS OF STEEL SOLDIERS IN THE WAY FOUND BETWEEN TANK AND TANK (9). FIGURE No.- 5 IS A SIDE CUT OF THE STORAGE TANK AND IN WHICH IT SHOWS THE DOUBLE BODY OF THE STEEL TANK 1 TO THE INNER TANK AND 1 B THE EXTERNAL TANK COPEL OF STEEL CEDULA 40 OF 2"OF DIAMETER FOR TANK PURGE SERVICE (2), COPLE OF STEEL OF 4"OF DIAMETER CÉDULA 40 P.ARA SERVICE FUEL DISCHARGE (3), STEEL COPLE 4"OF DIAMETER CELL 40 FOR STEAM RETURN SERVICE (4) COPLE OF STEEL 4" OF DLAMETRO P.ARA SERVICE OF PROBE OF INVENTORY MEASUREMENT (5), ENTRADA MAN OF 24"OF DLAMTERO OF PLATE OF STEEL FOR CLEANING E INSPECTION INSIDE THE TANK (6) AND WITH INCRUSTATION OF COPLE OF 4"OF DIAMETER CÉDULA 40 FOR THE INSTALLATION OF THE SUBMERSIBLE PUMP (7), COPLE OF 2" OF DLAMETRO CEDULA 40 FOR THE INSTALLATION OF VACUUM INDICATOR OR LEAK SENSOR IN ANCHORAGE SPACE (8), STEEL ELEMENT BETWEEN TANK AND TANK (9) AND FLEXIBLE SIDE SEALS OF THE FLOATING INTERIOR CEILING (10) AND ALUMINUM STRUCTURE FOR THE FLOATING ROOF (11) AND MIRROR LIQUID (12). FIGURE No.- 6 IS A FRONTAL COURT OF THE TANK OF STORAGE AND IN WHICH YOU CAN OBSERVE THE STEEL BODY OF THE INTERIOR TANK AND THE BODY OF THE EXTERNAL TANK IB, YOU CAN SEE THE ENTRANCE MAN OF 24"OF DAMPER OF STEEL PLATE THAT IS USED FOR CLEANING AND INSPECTION INSIDE THE TANK (2). YOU CAN OBSERVE THE FLEXIBLE CEILING SEALS FLOATING INSIDE WHICH ARE LOCATED AT THE WHOLE PERIPHERY THE STRUCTURE FORMING THE FLOATING CEILING (3) ELEMENT STEEL BETWEEN TANK AND TANK (4) AND ALUMINUM STRUCTURE FOR THE FLOATING CEILING (5). FIGURE No- 7 IT IS A PART OF THE BODY OF THE TANK OF STORAGE AND ON WHICH THE TANK IS ONLY SHOWN INTERIOR, THE IB EXTERNAL TANK AND THE ELEMENTS OF STEEL THAT WILL BE PLACED BETWEEN TANK AND TANK TO CREATE THE DEFINED .ANULAR SPACE (2). THESE REINFORCEMENTS OF STEEL WILL BE PLACED TO A CERTAIN SEPARATION MAXIMUM BETWEEN ONE AND ANOTHER. REINFORCEMENTS WILL BE WELDED ALTERNATE, THIS IS ONE WILL WELD TO THE OUTER SIDE OF THE TANK IA AND THE OTHER REINFORCEMENT WILL BE SOLDIER TO THE INSIDE FACE OF THE TANK IB AND SO SUCCESSIVELY ACCORDING TO CAPACITY VOLUMETRIC OF THE TANK THAT IS BUILT.

IMPORTANT NOTE THE SCALE MARKED IN THE DRAWINGS IS 1: 100 AND WOULD EQUIVALITE TO A TANK OF A NOMINAL CAPACITY D E 120.00 LTS.

Claims (2)

R E I V I N D I C H O N E S HAVING DESCRIBED SUFFICIENTLY OUR INVENTION WE CONSIDER AS A NOVELTY AND THEREFORE WE CLAIM AS OF OUR EXCLUSIVE PROPERTY, WHAT CONTENT IN THE FOLLOWING CLAUSES:

1- TANK FOR THE STORAGE OF FUELS OF RECTANGULAR TYPE AND WITH FLOATING INTERIOR CEILING, WHICH IS CONFORMS BY TWO BODIES OR METAL CONTAINERS ASSEMBLIES OF CONFORMITY WITH THE .API 650, WHICH ALSO HAS A SERIES ALREADY DETAILED OF COMPONENTS REQUIRED FOR YOUR OPERATION.

2- TANK FOR THE STORAGE OF TYPE FUELS RECTANGULAR THAT IS CHARACTERIZED AS IS CLAIMED IN THE PREVIOUS CLAUSE, TO HAVE IN YOUR INTERIOR A FLOATING CEILING, SAME AS TO AVOID THE EVAPORATION OF FUEL, WHICH IS THE RESULT OF THE CONTACT AND TEMPERATURE DIFFERENTIAL EXISTING BETWEEN THE AIR CHAMBER AND THE FUEL OR PRODUCT PRESENT INSIDE THE TANK. R E S U M E N THIS INVENTION REFERS A TANK FOR STORAGE OF FUELS WITH FLOATING INTERIOR CEILING TO BE USED IN SERVICE STATIONS (GAS STATIONS) OR CENTRAL OF DISTIBUCION. THE PROBLEM IS THAT CURRENTLY IN THE SERVICE STATIONS ARE INSTALLED AND THERE ARE TANKS STORAGE OF CYLINDER HORIZONTAL TYPE, THE WHICH ARE BURIED UNDER THE EARTH, THEMSELVES THAT BY YOUR CONDITIONS OF DESIGN, CONSTRUCTION AND OPERATION ARE CONSTANTLY SENDING THE HYDROCARBON VAPOR ATMOSPHERE DURING THEIR CONTINUOUS ACTIVITY. IN ESSENCE, THIS INVENTION IS TO PROVIDE A STORAGE TANK TOTALLY DIFFERENT FROM THE THAT CURRENTLY EXIST IN THE MARKET, SINCE THANK YOU A NOJEDOSA INTERNAL AND EXTERNAL CONSTRUCTION, WHICH MEETS THE SPECIFICATIONS OF PEMEX AND WHICH MAIN CHARACTERISTIC IS THE PLACEMENT OF ONE FLOATING INTERIOR CEILING, SAME AS AVOID EVAPORATION OF FUEL AND THAT IT WILL COOPERATE ALSO WITH THE PROTECTION OF THE ENVIRONMENT "AIR" AND THEREFORE OF THE HEALTH OF THE POPULATION.