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accumulator

A technology for heat accumulators and heat accumulator materials, applied in the direction of regenerative heat exchangers, heat storage equipment, indirect heat exchangers, etc., can solve the problem of reducing the efficiency of horizontal heat accumulators and preventing the horizontal heat accumulators from being fully filled etc. to achieve the effects of effective heat accumulator, high heat capacity, and reduced temperature gradient

Inactive Publication Date: 2019-01-04
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The resulting temperature gradients lead to mechanical stresses within the heat accumulator material, so that the horizontal heat accumulator cannot be filled to the full and thus reduces the efficiency of the horizontal heat accumulator

Method used

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Embodiment Construction

[0040]A heat accumulator 1 is shown in the single figure, which comprises a container 2 with two inclined plates 42 , 43 . In this case, the container 2 extends along a longitudinal axis, wherein the longitudinal axis extends substantially parallel to the horizontal direction H. FIG.

[0041] The definition of horizontal and vertical always refers to the prevailing gravity (vertical) at the location of the regenerator 1 .

[0042] The container 2 has a first opening 81 on the first side 91 . Here, the first opening 81 is arranged in the upper region of the container 2 close to the lid 16 . Therefore, the vertical distance between the first opening 81 and the lid 16 is smaller than the vertical distance between the first opening 81 and the bottom plate 14 of the container 2 . The definition of upper and lower refers to the vertical direction V (vertical direction), wherein the lower end of the container 2 (the bottom plate 14 ) in the vertical direction V is followed by the u...

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Abstract

The invention relates to a heat accumulator (1) for storing thermal energy, comprising a container (2) with a horizontally extending longitudinal axis, it being proposed that said container (2) comprise a heat accumulator material (5). According to the present invention, for the inflow and / or outflow of fluid, the container is provided with a first opening (81) and a second opening (82) vertically offset relative to the first opening, wherein the container (2) includes At least one fluid-impermeable plate (42, 43) which is inclined relative to the inflow direction and / or outflow direction (20, 21) of the fluid.

Description

technical field [0001] The invention relates to a heat accumulator according to the preamble of claim 1 . Background technique [0002] A heat accumulator is a thermal energy store which stores (thermal) energy and thereby decouples the generation of electrical energy from the generation of thermal energy or the production of thermal energy in time. The thermal energy stored by means of the heat accumulator can then be fed directly to the consumer as heat or used again to generate electrical energy. [0003] Possible regenerators are bulk material stores, which include stones or bricks as bulk material. In this case, the bulk material is usually loaded by means of a thermal fluid of approximately 600°C. [0004] The prior art is divided into vertically and horizontally oriented regenerators. Particularly in the case of horizontal heat accumulators, temperature gradients, ie temperature differences, can occur in different subregions of the horizontal heat accumulator durin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D20/00
CPCF28D20/0056F28D2020/0069Y02E60/14F28D17/04F28D20/0043F28F13/003F28F21/04F28F2009/228
Inventor V.达诺夫T.帕帕多普洛斯
Owner SIEMENS GAMESA RENEWABLE ENERGY AS