RU2305734C1 - Heated rainwater gutter head - Google Patents

Abstract

FIELD: construction, particularly roof drainage, drainage fittings in flat roofs.

SUBSTANCE: gutter head for roof provided with indoor or outdoor rainwater drainage comprises body connected to water removal pipe at discharge orifice thereof and heating member. Body edge defining the discharge orifice has at least one melted snow water accumulation groove provided with heating member and connection pipe extending from the groove. The connection pipe extends at descending angle to horizontal line or is vertical.

EFFECT: increased operational reliability and decreased power inputs for rainwater drainage heating.

10 cl, 4 dwg

Description

The invention relates to the field of construction, in particular to designs of heated funnels for roofs with internal or external gutter of buildings or structures for various purposes.

Known gutter system with electric heating, designed for an external gutter from the roof of the building, including a funnel, a drainpipe and a heating element located on the surface of the funnel and pipe. (RU 2158809, CL E04D 13/064, 2000).

A disadvantage of the known system is the significant energy consumption during the winter period for heating both the funnel and the drainpipe over its entire height.

The closest analogue to the claimed solution is a heated funnel for a drain, consisting of a housing connected to a drain pipe, and a heating element (SU 1747633, class E04D 13/06, 1992).

In a known solution, the heating element is placed around the perimeter of the upper part of the funnel body, as a result of which melt water moving from the peripheral heated zone of the funnel to its central part, having a lower temperature, can form an ice plug in the drainage pipe connected to the central part of the funnel.

An object of the invention is to increase the operational reliability of a heated funnel and reduce energy consumption for heating the drainage system.

This problem is solved due to the fact that in a heated funnel for roofs with an external or internal gutter, consisting of a housing connected in the area of its outlet to the drain pipe, and a heating element, the edge of the housing limiting the outlet is made with a heating element, at least one groove for collecting melt water and a branch pipe extending from it, located at a downward angle to the horizontal or vertical.

The branch pipe extending from the groove is connected to a pipe that discharges melt water into the building to a storm sewer pipe or to a container for technical needs.

The pipe and the pipe connected to it may be coated with heat insulation and / or provided with a heating element.

At least one additional nozzle may extend from the annular groove.

The preferred groove depth is 2-3 cm.

The free edge of the groove is made with a limb for seam connection of the funnel body with the drain pipe.

The free edge of the groove is rigidly connected to the drain pipe.

The cross section of the groove may lie in a horizontal plane or in a plane located at a downward angle to the horizontal.

The funnel can be made of polymeric material.

The invention is illustrated by drawings, which depict:

Figure 1 - funnel of the external drain;

Figure 2 - funnel of the internal drain;

Figure 3 - funnel of the external drain with an inclined annular groove;

Figure 4 - seam connection of the body of the funnel with a drain pipe.

The heating funnel 1, made of metal or polymer material, can be used both for roofs with an external drain of low-rise buildings, and for all types of roofs with an internal drain over cold rooms.

The most unfavorable conditions for the removal of melt water in the winter are created with external drains (figure 1). Melt water from the roof 2 of the heated part of the building flows outside the roof into the funnel 1 and the drainage pipes 3 of the drain pipe, where it freezes, forming ice plugs and destroying the drainage system.

To prevent ice filling the structure located below the funnel, i.e. storm drain pipe 3 of the internal or external drain, the drain funnel is as follows.

A funnel 1 for a roof with an external drain (Fig. 1) is made in the form of a housing, the side surface of which 4 can be made in the form of a surface of a truncated cone. In the area of the upper larger hole, the funnel body may be provided with a rim 5.

The edge of the body of the funnel of the external drain, adjacent in the area of the lower outlet to the drain pipe 3, is made around the entire perimeter of the hole with an annular groove 6 for collecting melt water. The concave surface of the groove 7 faces the inside of the funnel and is part of the surface of the funnel body, along which melt water flows from the roof 2 of the building.

To eliminate freezing of melt water in the annular groove 6, the latter is equipped with a heating element (not shown in the figure), made, for example, in the form of a heating cable connected to a current source, which can be laid along the bottom of the groove or along the perimeter from its outer side.

The funnel of the external drain can be installed between the hanging gutters that divert melt water from the eaves of the building, and its body can be made in the form of a tetrahedral truncated pyramid. In this case, the water-receiving surfaces of the funnel body will be its two opposite faces adjacent to the ends of the hanging grooves. The lower edge of each of these faces of the funnel body is provided with a groove for draining melt water with a branch pipe departing from it. Thus, the funnel body in the form of a truncated pyramid is equipped with two grooves located on the part of the perimeter of the outlet.

The body of the funnel 1 of the internal drain (Fig. 2) can be made in the form of a ring 8 provided with a collar 9. The funnel of the internal drain is located below the roof carpet, its body can be made only in the form of a ring, and on-board the element will be the roof sections surrounding the ring.

The edge of the housing 8, adjacent to the drain pipe in the area of the outlet, as well as in the funnel with an external drain, is made with an annular groove 6.

The preferred groove depth is 2-3 cm.

One (or several) branch pipe 10 departs from the annular groove 6, which can be connected to a pipe (not shown in the figure) that takes melt water inside the building to a storm sewer or to a tank for technical needs.

In the case 4 of the funnel of the external drain to ensure reliable drainage of melt water, the pipe is located at a downward angle to the horizon. The angle of the pipe is at least 2-3 °. An additional increase in the efficiency of melt water removal from the annular groove can be achieved due to its inclined location, i.e. the cross section of the groove lies in a plane located at a downward angle to the horizon in the direction of the branch pipe extending from the groove (Fig. 3).

In the housing 8 of the funnel of the internal drain, the pipe can be located vertically parallel to the longitudinal axis of the drain pipe.

The connection of the funnel body to the drain pipe can be carried out by means of a fold connection or rigidly in welding. In the first case, the free edge of the groove is performed with a bend 11, which is connected to the bend of the drain pipe by a seam connection 12 (Fig. 4). When the funnel body is rigidly connected to the drain pipe, the heated funnel is delivered to the construction site as a single element.

The device operates as follows.

When snow melts in winter, melt water moves along the slope of the roof, falls into the funnel and, flowing down its surface, collects in an annular groove and then goes through the branch pipe into the building through the branch pipe and spills into a storm sewer pipe or into a container for technical needs.

The removal of melt water from the funnel into the building, bypassing its entry into the rain gutter, will prevent the latter from freezing and will prevent melt water from entering the sidewalk in the winter, and consequently the formation of ice, which poses a threat to pedestrians.

Claims (10)

1. Heated funnel for roofs with an external or internal gutter, consisting of a housing attached in the area of its outlet to the drain pipe, and a heating element, characterized in that the edge of the housing limiting the outlet is made with at least one heating element , one groove for collecting melt water and a branch pipe extending from it, located at a downward angle to the horizontal or vertical. 2. The funnel according to claim 1, characterized in that the branch pipe extending from the groove is connected to a pipe that discharges melt water into the building to a storm sewer pipe or to a container for technical needs. 3. The funnel according to claim 2, characterized in that the pipe and the pipe connected to it are coated with thermal insulation. 4. The funnel according to claim 2 or 3, characterized in that the pipe and the pipe connected to it are provided with a heating element. 5. The funnel according to claim 1, characterized in that at least one additional pipe departs from the groove. 6. The funnel according to claim 1, characterized in that the depth of the groove is 2-3 cm. 7. The funnel according to claim 1, characterized in that the free edge of the groove is made with a limb for seam connection of the funnel body with the drain pipe. 8. The funnel according to claim 1, characterized in that the free edge of the groove is rigidly connected to the drain pipe. 9. The funnel according to claim 1, characterized in that the cross section of the groove lies in a horizontal plane or in a plane located at a downward angle to the horizontal. 10. The funnel according to claim 1, characterized in that it is made of a polymeric material.

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