DE1022836B - Pipeline network laid above the ground for irrigation purposes, for example for frost protection - Google Patents

Description

GERMAN

Automatic drain valves are known for containers. Furthermore, shut-off devices are in the form of a Known leaf spring, which keep the drain valve open due to their inherent tension and under the action of the steam pressure close the drain opening.

Compared to the known, the invention relates to a device for automatic emptying of fixed or overhung, pressurized pipelines from irrigation or Fire extinguishing systems.

The object of the invention is to provide that which has since been necessary for pipelines laid above ground Disconnect the individual pipe sections for the purpose of emptying the water residue when there is a risk of frost to avoid. The previously common monitoring and operation is in many cases over thousands of Meters of extending lines (in vineyards, extensive fruit crops, etc.) in today's prevailing shortage of labor hardly feasible, as on the one hand by the required Workload would jeopardize the profitability of the system, but also the solving of Pipe couplings after frosty nights, in which the irrigation to protect the crops against frost in Activity was going to encounter substantial difficulties. In addition, walking would be more frozen and Dangerous and obstructive due to the irrigation of icy surfaces and slopes over long distances. aside from that Despite the measures described above, there is still a risk to the pipelines in all cases in those when laying cables in uneven, hilly or mountainous terrain, especially When laying lines over crops, water still collects despite opening the couplings can form in the pipes.

To solve this problem, according to the invention, valve supports (tapping pipe clamps, sleeves, Sockets and the like) arranged, known drain valves at the lowest points of the pipeline provided drainage openings assigned, the valves in a known manner under the liquid pressure are kept in the closed position in the line and after the fluid pressure has been turned off open automatically under the action of an adjustable spring.

By using the drain valves known per se in the case of pipe strings laid above ground the essential progress is achieved that the time-consuming by the automatic emptying Decoupling of the individual pipe strings becomes superfluous. Above all else is the automatic emptying safe, and there is a lot of material that would otherwise be destroyed by the action of frost Damage protected.

routed above the earth
Pipeline network for irrigation purposes, for example for frost control

Applicant:

Karl Ludwig Lanninger,
Frankfurt / M., Frauenlobstr. 52

Karl Ludwig Lanninger, Frankfurt / M.,
has been named as the inventor

The type of valve support depends on the material used for the pipes. For pipes made of thin-walled material (steel strip or light metal), tapping saddles are useful, which are known as nozzle carriers, while used in pipelines made from thick-walled pipes It is advisable to insert sleeves or nozzles as valve supports.

For the exit of the liquid openings are provided in the valve housing in a known manner, and although in the valve screw connection, which is also used to regulate the spring tension, and / or in the valve wall. This allows the water, if necessary with the addition of a, to the ground guided hose end, directly diverted or radiated from the side. The risk of scouring the soil through the escaping water is thus eliminated in any case.

In times when there is no risk of frost, the water also when the pressure in the pipes is switched off can remain, the valves are either removed or disabled.

Exemplary embodiments of the subject matter of the invention are shown in the drawings.
Fig. 1 is a schematic diagram of a line routed over rough terrain with drain valves located at the low points;

Fig. 2 shows a valve in the emptying position,
3 in the closed position;

4 shows the water outlet opening in a cross-sectional view in the screw connection and in the housing of the valve;

Fig. 5 shows a section through the outlet valve with the water outlet points.

709 84J / 52

Specifically, the reference symbols mean: α the pipeline, b the drain valve, c the valve head with seal, d the guide spindle of the valve head, e the adjustable valve screw connection with outlet openings, f the compression spring, g the valve support (tapping pipe clamp, sleeve or the like) .

Claims (1)

^:! "PATENT CLAIM: '"' Pipeline network laid above the ground for irrigation purposes, for example for frost control, characterized in that at low points of the pipeline network for the purpose of emptying the same known per se, of Tapping saddles, sleeves, supports or the like. Supported drainage valves are arranged. Documents considered: German Patent No. 545 646; U.S. Patent No. 2,399,996; French patent specification No. 317 860. 1 sheet of drawings © 709 849/52 1.58