Drinking water, process water and / or fire extinguishing water system

Abstract

Drinking, process and / or fire-fighting water system comprising a storage tank (1) and a control system, wherein the storage tank (1) has a water supply line (2) and a water pressure line (3), characterized in that an emergency drain (6) for discharging larger quantities of water is arranged in the storage tank (1) and that the emergency drain (6) has pipes and that in each of these pipes a pipe end arranged in the storage tank (1) is arranged below a pipe end located outside the storage tank (1), so that, in the case of emergency drainage, the pipes are completely filled with water, contrary to known gravity drainage systems, so that a negative pressure is created and increased flow velocities ensure a higher transport of the quantities of water.Drinking, process and / or fire-fighting water system comprising a storage tank (1) and a control system, wherein the storage tank (1) has a water supply line (2) and a water pressure line (3), characterized in that an emergency drain (6) for discharging larger quantities of water is arranged in the storage tank (1) and that the emergency drain (6) has pipes and that in each of these pipes a pipe end arranged in the storage tank (1) is arranged below a pipe end located outside the storage tank (1), so that, in the case of emergency drainage, the pipes are completely filled with water, contrary to known gravity drainage systems, so that a negative pressure is created and increased flow velocities ensure a higher transport of the quantities of water.

Description

From DE 296 16 912 U1 a rainwater harvesting system is known which consists of a rainwater collection basin, a pump and a refill tank, wherein the refill tank is arranged in the rainwater collection basin. DE 195 01 511 C1 describes a cistern with automatic refilling by fresh water when the water level falls below a certain minimum level, wherein an open-topped container is arranged at the bottom of the cistern. DE 296 03 420 U1 relates to a system for supplying service water with a reservoir into which service water is fed and to which a pump for supplying the service water to the draw-off points is assigned, and with a connection to the drinking water network for supplying drinking water when the draw-off exceeds the service water supply. The suction side of the pump can be connected to the service water reservoir or to a drinking water line. The switchover is controlled by the water level in the reservoir. EP 1 070 794 A2 discloses a system for the use of rainwater, comprising a rainwater storage tank and a device for replenishing drinking water in case of rainwater shortage, a pump for conveying the water collected in the rainwater storage tank or the replenished drinking water, associated pipes and fittings, and a device for controlling the drinking water replenishment and the switch from rainwater to drinking water supply.According to the invention, a system that requires no electrical control and no motor-operated valves is created by: a) a suction box into which rainwater is drawn from the rainwater storage tank and from which the pump delivers, wherein the suction box has a refill opening for drinking water which can be closed by a float valve and which is opened when the liquid level drops to a predetermined minimum height; b) a drinking water refill tank arranged above the suction box, which is filled with drinking water up to a predetermined maximum height by means of a valve controlled by a float, wherein its contents are discharged into the suction box via the refill opening. The existing solutions are designed for specific needs, such as drinking water supply, process water supply, etc. Separate storage tanks are used for fire suppression and rainwater harvesting systems. The standard requirement for an emergency overflow is practically never implemented, or relatively large pipe dimensions must be used to safely discharge the resulting volumes of water. This entails significant technical and financial effort. Large volumes of water flowing into small tanks via the free outlet can only be discharged with a conventional gravity sewer system using an emergency overflow with considerable structural complexity. The invention is based on the objective of creating a drinking, process and / or fire extinguishing water system that enables indirect process and fire extinguishing water supply and discharges large quantities of water, e.g. in the event of failure of the system technology, without the aid of external energy and with small pipe dimensions. The problem is solved according to the invention by the features specified in claim 1. The invention is explained in more detail below using an exemplary embodiment. The accompanying drawing, Fig. 1, shows a schematic of the drinking water, process water, and / or fire-fighting water system. In a drinking water, process water, and / or fire-fighting water system comprising a control system and a storage tank, the storage tank 1 has a water supply line 2 and a water pressure line 3. An emergency drain 6 is located in the storage tank 1. Municipal or drinking water from the public water network is fed into the storage tank 1 and drawn off as needed via a water pressure line 3. To drain the larger quantities of water that may accumulate in an emergency, none of the known gravity drainage methods are used. In contrast to conventional drainage systems, where the pipes are only partially filled, in the described system the outgoing emergency drainage 6 is completely filled with water, so that a negative pressure is created and increased flow velocities ensure a higher removal of the accumulating water quantities. List of reference symbols 1 Storage tank 2 Water supply line 3 Water pressure line 6 Emergency drainage 8 Inlet

Claims

Drinking, process and / or fire-fighting water system comprising a storage tank (1) and a control system, wherein the storage tank (1) has a water supply line (2) and a water pressure line (3), characterized in that an emergency drain (6) for discharging larger quantities of water is arranged in the storage tank (1) and that the emergency drain (6) has pipes and that in each of these pipes a pipe end arranged in the storage tank (1) is arranged below a pipe end located outside the storage tank (1), so that in the event of emergency drainage, the pipes are completely filled with water, contrary to known gravity drainage systems, so that a negative pressure is created and increased flow velocities ensure a higher transport of the quantities of water.

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