DE1955724A1 - Drain safety device - Google Patents

Description

DAVID D. COLES DONALD M. MOSS CLIPFORD E. RYAN

Huntington Park, Newport Beach, Newport Beach,

California California California

Salt Lake Avenue 7856 Newport Boulevard 3345 Bay Front 1305

V. St. A. V. St. A. V. St. A.

Drain safety device

The invention relates to a prefabricated safety device, which can be used in a vertically arranged drain in order to discharge from Prevent explosive vapors from escaping into the outside atmosphere.

In distilleries and other comparable industrial companies, which have substantially hard coated work surfaces are usually underground laid drainage lines in use, each of which is arranged at a distance from one another and extends downwards Processes are connected. Occasionally, volatile hydrocarbon liquids will leak into these drain lines. the Vapors from these liquids mix with air in the drainage lines and thereby form an explosive mixture, which is in contact with the outside air through the processes themselves.

009823/0136

Patent attorney · Dipl.-Ing. Martin Licht, Dipl.-Wirtfch.-lng. Axel Hansmann, Phyi graduate. Sebastian Herrmann

8 MÖNCHEN 2, THERESIENSTRASSE 33 · Telephone. M1202 Talegramm-AdreiMi LIpalll / Munich Bayer. Vereinibonk Munich, Zwiggti. Otlwvon-Milter-Ring, toilet no. 8 * 24 «· Poificheck-Konfoi Munich No. 1633 97

Oppenauer Büro, PATENT ADVOCATE DR. REINHOLD SCHMIDT

It was previously necessary, before welding work ο the like. the inlets to cover these processes with sandbags. This is to prevent possible ignition of explosive vapors in the discharge lines, which could cause considerable damage can be avoided. The covering of processes Using sandbags is expensive and does not guarantee complete protection against fire should explosive vapors develop ignite in the drain lines.

In contrast, the object of the present invention is to eliminate the disadvantages of the type mentioned, aho without ™ covering the drainage lines with sandbags. A process safety device is to be used, which is provided within vertically arranged processes and forms a water seal to prevent the discharge of explosive vapors into the outside atmosphere.

In accordance with the present invention, a prefabricated drain safety device has been provided. This has a rigid plate, in the center of which an opening is provided and is in communication with a downwardly directed, cylindrical tube; this tube is located inside a container connected to the plate. The edge portions of the loading h hälters lie on shoulders, which constitute a part of the downwardly extending sequence. A grate rests on the surface of the plate and releasably holds the safety device in place on top of the drain.

After installing the safety device, water is let in until it comes out of the openings in the container flows. These openings are located above the lower edge of the pipe. This way it gets a certain amount of water stored inside the container. This water acts as a seal to prevent a discharge of explosive gases from an underground to prevent laid drain line.

009823/0136

The present invention is primarily intended to provide a prefabricated process safety device of relatively simple, mechanical structure can be created, which can be made of common, commercially available materials. That The device should be easy to install and, once installed, should create a water seal to prevent the unloading of To prevent explosive gases from being released from an underground pipe into the outside atmosphere.

It is also intended to be a lightweight, easily transportable flow safety device be created of light, easily distinguishable color through which can be visually indicated what flow through a waterproofing of the type mentioned against the discharge of explosive gases into the outside atmosphere is protected.

The relatively light device should be made of polymerized Resin-impregnated fiberglass material. In particular, it should be used in already existing processes, which have an iron grate placed on a horizontal shoulder, can be used. That used in this way The safety device should essentially be resistant to water and moisture. Only one part of the The device-forming edge part of a plate is exposed to the load from a wheel of a vehicle when it passes over the grate moves.

The invention is implemented in a prefabricated flow safety device, which is detachable in a vertical Drain is used, and which, when it is partially filled with water, forms a seal around a to prevent upward discharge of explosive vapors through the drain into the outside atmosphere.

The invention is explained with reference to the accompanying drawings.

009823/0136

Figure 1 of the drawings is a perspective view of a first embodiment of the drain safety device;

Figure 2 is a vertical sectional view taken on line 2-2 in Figure 1;

Figure 3 is a cross-sectional view taken on line 3-3 in Figure 2; Figure h is a perspective view of the upper part of a drain after the drain safety device has been installed therein;

Figure 5 is a vertical sectional view taken on line 5-5 in Figure 4; and

Figure 6 is a perspective view of a second embodiment of the drain safety device.

The first embodiment of a flow safety device A, shown in Figure 1 of the drawings, has a rigid plate B in which an opening IO is located. The opening 10 serves for the insertion of a downwardly extending, cylindrical tube C. A container D (Figure 2) is provided, from the upper edges of which a circular flange 12 extends outwardly. This Flange is glued to or connected to the underside of plate B.

The container D is substantially larger than the tube C, both in depth and in cross-section, as can be seen from Figure 2 of the drawings. A second or several second openings lh are arranged in the container D above the lower edge of the pipe C. The total surface area of the openings Ik preferably corresponds to the inner cross-sectional area of the pipe C, so that the downward flow of the medium through the discharge safety device A is not interrupted.

The plate B, the tube C and the container D are preferred Made from resin impregnated fiberglass material, though others, wiferous to moisture, water and frost

009823/0136

stable connections can be used for this purpose. Each flow safety device A is prefabricated and can be fed in the form shown in Figure 1 to the places where it is used.

The plate B is provided with an annular region 16 which runs obliquely downwards in the direction of the tube C, to make it easier for surface water to run into container D. The container D consists of one cylindrically shaped side wall 18 and a bottom 20. An Ijpischer, downwardly extending drain E, as shown in Distillers found is illustrated in Figure 5 of the drawings. This process is a continuous one Wall 22 which forms an inner, perpendicularly oriented passage 25. The channel serving as a passage leads to an underground drain, not shown management.

At the top, the wall 22 is shown in FIG Way provided with a recess, whereby a running in a horizontal plane, continuous shoulder 24 is formed. The plate B of the device according to the present invention can be shaped so that it rests on the shoulder 24; if however, if the plate has been made too large, it can be trimmed at its edge in order to adapt it to the shape of the shoulder 24. The plate B fitted in this way is placed on the shoulder 24, after which a grate F (FIGS. 4 and 5) is inserted into the in the wall 22 recessed area 26 of the drain E is fitted. The edge parts of the plate 10 are of sandwich construction arranged between grate F and shoulder 24. If desired, a putty G or other adhesive can be applied to the top and bottom Areas of the plate B are applied so that it bonds to the shoulder 24 and the grate F.

009823/0136

After installing the drainage safety device A, water is in let in the device until it flows out through said second openings IA. A certain amount of water 28 remains in container D and serves as a seal around an upward discharge of explosive gases through the drainage channel 25 in the direction of the outside atmosphere. if the drainage safety device A is installed in places that are exposed to frost, salt or another defrosting agent Material can be added to the water, 28 in order to prevent the formation of ice. The lower edge of the pipe C is in considerable Distance provided above the bottom 20 of the container D, whereby a gap 30 is formed. In this you can Solids accumulate without the connection between the first opening 10 in the plate and the second openings 14 in the container D to interrupt.

A second embodiment A ^{1 of} the safety device is shown in Figure 6 of the drawings. The second embodiment A ¹ differs from embodiment A only in that the sheet metal B ^{1 is} circular and not square or right-angled. Individual components of the second embodiment A ¹ correspond to the same components of the first embodiment A and are denoted in the drawings by the same reference numbers to which a prime has been added. Both the first and the second embodiment of the safety device are preferably colored lightly in order to indicate that there is no risk of explosive vapors escaping from those processes in which the safety device is used.

009823/0136

Claims (9)

Patent application: "Drain safety device" PATENTAN'S CLAIMS Drainage safety device with a grate, which on a continuous shoulder in a horizontal plane vertically arranged drain is placed, the drain connected to an underground drain pipe is, in which explosive vapors can collect, characterized in that the safety device that the Prevents vapors from escaping into the outside atmosphere, has the following components: a. a plate (B) made of rigid material arranged in the upper area of the drain, the edge of which is sandwiched between the shoulder (24) of the drain (E) and the grate (F) used is, with a located in the plate (B), first opening (10); 009823/0136 Patent attorneys Dipl.-Ing. Martin Licht, D ^^^ lvb-M ^ V ^ Q ⁰ ^ Dipl.-Phys. Sebastian Herrmann 8 MÖNCHEN 2, THERESIENSTRASSE 33 · Telephone: 281202 · Telegram address: Lipatli / Munich Bayer. Vereinbonlc Munich, branch. Oikar-von-Miller-Ring, account no. 882495 Postschedc account: Munich No. 163397 Oppenau office: PATENT ADVOCATE DR. REINHOLD SCHMIDT BATH ORIGINAL b. a cylindrical tube (C) »extending from the plate (b) extends into the drain (E) and with the opening (10) in Connected; and c. a container (D), its cross-sectional area and depth is considerably larger than the cross-sectional area and depth of the pipe (C), the container (D) from which the pipe (C) surrounding plate (B) extends downwards in such a way that at least one second opening (14) in the side of the container (D) comes to lie above the lower edge of the tube (C), whereby when water in the container until it flows through the second opening (I ² O, the lower end fe of the pipe (c) is immersed in the water in the container, so that the water acts as a seal to prevent the discharge of explosive vapors from the underground drainage pipe to prevent it from entering the outside air. 2. Flow safety device according to claim 1, characterized in that that an annular shaped area (16) of the opening (iO) surrounding plate (B) obliquely inward in the direction of the pipe (C) to facilitate the drainage of surface water into the underground pipe. 3. Process safety device according to claim 1, characterized in that that at least the plate (B) made of impregnated resin W is made of fiberglass and is permanently bonded to the tube (C) and container. 4. Process safety device according to claim 3 »characterized in that that the tube (C) as part of the plate (B) consists of resin-impregnated fiberglass. 5. Process safety device according to claim 1, characterized in that that the plate, the tube and the container (B, C, υ) consist as a unit of a rigid, resin-containing material which is impermeable to moisture and water is. 009823/01 36 6. Drainage safety device according to claim 1, characterized in that a number of second openings (I ² O in the container (D) are provided, the total surface area of the second openings (14) being at least as large as the inner cross-sectional area of the tube (C). 7. Process safety device according to claim 1, characterized in that that the lower edge of the tube (C) is provided high enough above the underside (20) of the container (d), so that a considerable amount of solid material can collect on the underside of the container (D) without the connection to interrupt between first (10) and second openings (14). 8. flow safety device according to claim 1, characterized in that that at least the plate (B) is brightly colored and distinctive in order to identify the process, which is secured by the safety device. 9. Process safety device according to claim 1, characterized in that that the plate (B) is circular. 009823/0136 , 40 Blank page