Heat accumulating device with modularized water distributors

Abstract

The invention discloses a heat accumulating device with modularized water distributors. The heat accumulating device comprises a shell and the water distributors, an accommodation cavity used for accommodating a heat accumulating medium is limited by the shell, the water distributors are arranged in the accommodation cavity, the water distributors comprise flow guiding plates and a plurality of water distributing tubes which are arranged at intervals along a radial direction of the shell, the water distributing tubes are provided with water distributing holes which face the radial direction ofthe shell, normal lines of the flow guiding plates are horizontal, a plurality of through holes are formed in the flow guiding plates, and the flow guiding plates are arranged between every two adjacent water distributing tubes and are radially spaced from the water distributing tubes. The heat accumulating device has the advantages that by redesigning directions of the water distributing holes and adding the flow guiding plates, uniform distribution of water flows of the water distributing tubes and consistent flow speeds of the water distributing holes can be guaranteed, and uniform distribution of inlet flows of the heat accumulating device is guaranteed.

Description

technical field [0001] The invention relates to the technical field of heat storage, in particular to a heat storage device with a modular water distributor. Background technique [0002] Water heat storage technology uses the sensible heat of water to store heat energy, stores heat in heat storage devices during the heat storage stage, and releases heat to heat users during the heat supply stage. Heat storage systems such as renewable energy such as wind and light abandonment, solar energy utilization, and industrial waste heat utilization are of great significance for improving energy utilization efficiency, balancing heat energy supply and demand, and environmental protection. [0003] In the water heat storage technology, the heat storage device usually adopts a natural layered heat storage device. The cold and hot water in the heat storage device generates gravity flow (density flow) due to density difference rather than inertial effect, forming a small mixing effect of...

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Problems solved by technology

[0005] For the multi-circle pipe water distributor in the related art, firstly, the water distributor distributes water along the axial direction of the tank body, and this water distribution method seriously disturbs the entire tank body; secondly, the water distributor opens on the water distribution pipe. Holes, the water distribution area of ​​each circle of water distribution pipes is equal by unequal hole spacing in each circle of water distribution pipes, so as to achieve approximately uniform and low-speed flow at the outlet of the water distributor, but this opening method will lead to processing of water distribution pipes Difficult, difficult to achieve mass production, the opening spacing of the outer ring is large, resulting in waste of water distribution pipe material, the opening spacing of the outer ring is larger than that of the inner ring, resulting in locally uneven flow at the outlet of the hole between the inner ring and the outer ring, and the heat storage device The density flow that moves up and down cannot be formed inside, the thickness of the thermocline layer becomes thicker, and the efficiency of the heat storage device decreases

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