Solar energy and electric energy integrated energy storage heat supply system and energy storage heat supply method
A technology for heating systems and solar collectors, which is applied in solar heating systems, heating systems, solar thermal energy, etc., and can solve problems such as poor operability and low heat utilization efficiency
Pending Publication Date: 2018-07-20
中益能(北京)供热技术有限公司
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- Claims
- Application Information
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Problems solved by technology
[0010] In order to solve the problems of low heat utilization efficiency and poor operability, the invention provides a new heat storage device
Method used
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Embodiment 1
[0195] Phase change heat storage materials include the following components:
[0196]
[0197] Preparation process: heating and melting the a) component, continue heating to increase to 90°C, then add other components, stir and mix to form a phase change heat storage material in the form of a mixture. The density (ρ) of the mixture is 2520kg / m 3 . Phase transition temperature range: 82-95℃. Latent heat of phase change (L) = 322-333kJ / kg. Specific heat capacity (Cp) = 5.52kJ / kg·℃. The mixture was heated from 50°C to 90°C, and the volume expansion rate was 0.05%.
[0198] Filling: Allow the mixture to cool to about 40°C, fill it into the tubular or rod-shaped heat storage element (3), weld and seal the port.
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Abstract
The invention provides a solar energy and electric energy integrated energy storage heat supply system and an energy storage heat supply method. The system comprises an off-peak electricity energy storage heat supply device and a solar thermal collector (15). A water outlet of the solar thermal collector (15) is connected to a water inlet of an upper water distributor (2) of the off-peak electricity energy storage heat supply device through a pipeline (namely, a fifth pipeline L5), and a water outlet of a lower water distributor (4) of the off-peak electricity energy storage heat supply deviceis connected to a water inlet of the solar thermal collector (15) through a pipeline (namely a sixth pipeline L6). The off-peak electricity energy storage heat supply device comprises 1) a heat storage device box body or shell body (1), 2) a center heat storage assembly, 3) a first coil pipe (5) surrounding the center heat storage assembly, 4) a second coil pipe (6) surrounding the first coil pipe (such as a hot water supply coil pipe) (5), 5) an auxiliary cavity located in one outer side of the heat storage device box body (1), and 6) an electric heating device (8) mounted in the auxiliary cavity and provided with an electric heating element (7) for heating circulating water in the box body.
Description
Technical field [0001] The invention relates to a combined heating system of electric heating, solar energy and phase-change energy storage heating device, that is, a solar energy and electric energy integrated energy storage heating system and an energy storage heating method including a valley electric energy storage heating device, belonging to indoor Energy-saving and environmentally friendly fields for heating, providing hot water, and reducing usage costs. Background technique [0002] In the process of heating indoors and providing hot water, one of the key issues is where the "heat source" comes from and how to make good use of it. For a long time, technicians in the industry have been continuously researching and considering from many aspects and perspectives. Various energies are fully utilized, some using wind energy and some using solar energy, each has its own advantages and disadvantages. The present invention uses low valley electricity at night to store heat for u...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24D3/00F24S10/00F24H1/20F28D20/00
CPCF24D3/005F24H1/201F28D20/0034F28D2020/0069F28D2020/0078Y02E70/30Y02E60/14
Inventor 麻玉华
Owner 中益能(北京)供热技术有限公司
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