A water distribution device with constant water head

Abstract

The invention discloses a flow-splitting water-distributing device of a constant head. The flow-splitting water-distributing device comprises a box with an opening in the upper end face, a flow-partitioning plate is arranged inside the box and used for dividing the box into an overflowing chamber and a flow outgoing chamber, flow-stopping plates are arranged inside the overflowing chamber and used for dividing the overflowing chamber into a turbulent flow chamber and a static flow chamber, a water inlet pipe is arranged on the part, in the turbulent flow chamber, of the box and connected with a water-supplying pipeline, densely-distributed flow passing holes are formed in the flow-stopping plates, and an overflowing groove is formed in the flow-partitioning plate between the static flow chamber and the flow outgoing chamber; multiple flow-distributing pipes of different heights are arranged on the part, in the static flow chamber, of the box, the highest flow-distributing pipe is lower than the overflowing groove, water outlet pipes used for discharging water are arranged at the part, in the flow outgoing chamber, of the box, and throttling devices are arranged on the water outlet pipes and the flow-distributing pipes respectively. According to a test flow design requirement, the excessive flow of incoming water can be regulated; redundant water is recovered through the water outlet pipes and prevented from being abandoned; the flow-splitting water-distributing device is simple in structure, convenient to apply and maintain and capable of being widely applied to a hydraulic power water flow test and hydraulic engineering needing flow-quantifying regulation.

Description

technical field [0001] The invention belongs to the technical equipment field of water conservancy facilities, and relates to a technical equipment for automatically and accurately diverting and distributing relatively large incoming water flow according to the requirements of the outlet water flow, in particular to a water diversion and distribution device with a constant water head. Background technique [0002] When carrying out water flow hydraulic tests in the field, it is often encountered that it is necessary to set different inflow flow levels to study test scenarios under different working conditions. Unlike laboratories with advanced scientific research equipment and good conditions for multi-stage adjustment of water supply equipment according to test flow requirements, field water flow hydraulic tests can only be supplied with constant flow and constant water head through single-stage water pumps. In order to meet the water flow requirements of different tests, a...

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Problems solved by technology

However, when the test requires a large flow range, the number of small flow pumps required will be large, which will cause certain financial pressure for scientific research personnel and cumbersome and inconvenient operation management.

At the same time, under the conditions of modern industrial assembly line production, the model of the water pump, that is, the interval change of the flow rate and the head is basically finalized, and the flow size requirements required by the testers sometimes cannot be solved by the combination of different flow rate pumps.

Even if it is a multi-stage adjustable water pump, its flow adjustment range is limited, and its flow adjustment interval is fixed, which cannot be adjusted arbitrarily according to the test requirements.

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