DE2137495B2 - Cover for ring-shaped collecting trays of above-ground, flammable liquids absorbing large-capacity containers - Google Patents

Description

In the drawing, the subject of the invention is in an embodiment shown It shows

Fig.1 a part of a large-capacity container with Drip pan and a cover according to the invention in vertical section,

FIG. 2 shows a part of the cover in plan view in FIG larger scale.

Fig. 2 shows a section along the line ΠΙ-ΙΗ according to Fig.2und

4 shows a further section along the line 1V-IV according to FIG. 2 each on a larger scale.

One used to absorb flammable liquids Above-ground large-capacity container 1 is in a drip pan with sheet steel floor 2 and one just such an outer wall 3 set up. The space between the container outer wall 4 and the outer wall 3 of the drip pan is covered by a roof 5, which over a collecting channel 6 on the outer wall 3 of the collecting tray ends. The collecting channel 6 has several U-noisy drainage pipes 7 in an even circumferential distribution. The arranged outside the tub outer wall 3 Outflow openings of the drainage pipes 7 are lower than the overflow edge of the gutter wall but higher than the channel bottom, so that a water sump always remains in the channel 6 and the drainage pipes 7 in which a sight glass can be inserted, are filled with water. From the roof 5 flowing water arrives into the collecting channel 6 and overflow liquid is discharged to the outside via the drainage pipes 7 from the container 1 or leakage liquid that escapes from the large-capacity container 1 from leaks above the roof 5, is also from the roof 5 in the collecting channel 6, but flows, since it is mostly lighter liquids than water, over the inner wall of the collecting channel into the collecting tray.

The roof 5 consists of overlapping, trapezoidal plastic plates 8, which with their inner edge between two provided on the large-capacity container wall 4, around this circumferential flange

iS see 9 grab and support themselves with parts of their downwardly bent outer edge 16 on the collecting channel bottom. In order to prevent the plastic plates 8 from bending or sagging, radial stiffening ribs ii are provided.

ao Melting or burning when a fire ice breaks out, the plastic plates 8, the z. B. made of glass fiber reinforced polyester with flame retardant additives, so consist of a thermosetting plastic without its own flame formation, for example at a temperature of

150- C. The cover is destroyed and the surface of the burning liquid becomes the Application of the deletion aura freely.

1 sheet of drawings

Claims (2)

1 f * 2 such a cover on the steel sheet a quick approach to claim: bring extinguishing foam to the surface of the fire, which makes it very difficult to extinguish the fire 1. Cover for ring-shaped collecting pans is made. of aboveground, flammable liquids. The invention has therefore set itself the task of approving large-capacity containers with a ring, to eliminate this deficiency and a cover-shaped roof, which is preferably over a kung for ring-shaped collecting trays of iberirdi-collecting channel on the outer wall of the collecting see to create large-capacity containers, in which the tub ends, characterized by the fact that rainwater does not penetrate into the collecting tub because the roof (S) prevents the fire from melting at a burning temperature and a quick and effective fight against the stored liquid from melting quickly in the event of a fire made possible or flame retardant burning synthetic. material, for example made of thermosetting plastics with flame starting from a cover of the initially inhibiting Additions such as chlorine or phosphorus type described, the invention solves the stated Aufverbmdungen, consists of 15 would essentially be that the roof is made of at 2. Cover according to claim 1, characterized in that the stored liquid burns quickly indicates that the roof (S) consists of melting or flame-retardant burn-off overlapping;., preferably trapezoidal the plastic, for example consists of thermosetting plastics with plastic plates, which with their internal flame-retardant additives such as chlorine or edge between two phosphorus compounds on the large capacity container. Shortly after leaving (4) provided around this circumferential rupture of a fire, the cover is zipped (9) Grab and, with parts of your sum, adjoin the surface of the drip pan The outer edge bent at the bottom on the sensitive flammable liquid is freely accessible Support the pan bottom. and foam can be quickly and easily 35 way on the surface of the burning liquid be applied. According to the invention, the roof consists of a flame retardant that burns down Plastic to prevent in case of fire burning roof parts due to the resulting fire 30 wind carried into the environment and the Brand continues to spread. The plastics industry today is capable of almost all of the possible Plastics due to certain additives in the The invention relates to a cover for ring production to be designed in such a way that it is used in front Shaped collecting basins burn down on aboveground, burning hands in the presence of a flame, if absent Large-capacity containers holding bare liquids - an external source of fire, however, go out again, tern with a ring-shaped roof, which preferably has been found to be particularly suitable in practice. exposed over a collecting gutter on the outer wall of the Aufroplaste, those with flame-retardant catch basin ends. Additives (chlorine or phosphorus compounds) Above-ground large-capacity containers for mineral oil - 40 can be set to be flame-retardant, As is well known, products or the like do not have to drip with such a thermoset when exposed to heat. Surrounding a protective wall, better still in a catchment but decompose into gases and solid residues, tub to be set up to prevent leakage of the particular soot. Besides these thermosets you can Container or an overflow of the container content but also polyurethane with high density (greater than tes the uncontrolled flow and thus the use of 45 300 kg / m ³ ) or PVC as a synthetic rod to prevent groundwater pollution. to the. The collecting trays are often made of steel. A simple cover according to the invention results manufactured and have a capacity, which is characterized by the fact that the roof from each other overlap-receiving dispense a large part of the container contents, preferably trapezoidal plastic plate or the entire contents of the container. ; io ten consists, with its inner margin between two Compared to the earth walls that have been customary for a long time on the large-capacity container wall, in order to or concrete protection dams with which such large- these encircling flanges grip and deal with teiraum containers are surrounded, offer steel catchments on their outer edge, which is bent downwards have the advantage in the event of a fire that the bottom of the collecting channel is supported. The ring-shaped Fire on a much smaller surface is therefore limited remains, which a rapid approach of the finished plastic sheets are formed without Allows extinguishing devices to the source of the fire. That the cover especially the annular shape Fire can be adapted with a relatively small amount of the drip pan. That I can be combated using foam. the plastic sheets themselves with parts of their after un-are Such collecting troughs are open at the top, so 60 th bent outer edge on the collecting trough can be Supporting precipitation unhindered in the ring-shaped areas is not a separate support for the Abgen Collection space required between the outer wall of the container and the cover. Between the support parts The outer casing of the drip pan and the plastic plates remain in place even when they are put on accumulate there. In order to avoid this, there are openings which have become known to equalize pressure, the drip pans with a cover, so that suction effects in the event of wind currents being uncovered made of sheet steel and avoided for one. These openings are guaranteed Discharge of rainwater to the outside most also that leakage flow flowing over the roof care for. If necessary, however, prevents fluid from getting inside the drip pan.