Dual-purpose energy storage water tank for cold storage and heat storage
An energy storage water tank and energy storage water tank technology, applied in the field of energy storage, can solve the problems of inability to guarantee the outlet water temperature, occupying a large space, and high investment and maintenance costs, so as to improve energy storage efficiency and equipment use efficiency, prolong service life, and save energy. The effect of space and investment and maintenance costs
Pending Publication Date: 2020-12-25
DALIAN UNIV OF TECH
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Problems solved by technology
In order to solve the shortcomings of the existing cold storage and hot water storage tanks proposed in the above background technology, the investment and maintenance costs are high, the space is large, and the outlet water temperature cannot be guaranteed
Method used
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Embodiment Construction
[0016] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and technical solutions.
[0017] A dual-purpose energy storage tank for cold storage and thermal storage, comprising an energy storage tank 1, a cold and heat source device 2, a heat exchange device 3, a first energy release circulating water pump 4, a second energy release circulating water pump 5, and a first energy storage cycle Water pump 6, second energy storage circulating water pump 7, first butterfly valve 8, second butterfly valve 9, third butterfly valve 10, fourth butterfly valve 11, check valve 12, fifth butterfly valve 13, drain point 14, first temperature sensor 15 , the second temperature sensor 16, the first valve 17, the second valve 18, the third valve 19, the fourth valve 20, the storage tank body 101, the support seat 102, the right port 103, the left port 104, the spray pipe 105 , nozzle 106 and support structure 107;
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The invention discloses a dual-purpose energy storage water tank for cold storage and heat storage, and belongs to the technical field of energy storage. A cold storage water tank and a hot storage water tank are combined into a whole, water flow is evenly distributed twice through reasonable arrangement of water distribution pipes, water flow uniformity during energy storage and energy release iseffectively achieved, the thickness of a thermocline is reduced, the dual functions of heat storage in winter and cold storage in summer are achieved, and meanwhile the energy storage efficiency andthe equipment use efficiency are improved; and space and investment and maintenance cost are effectively saved, and the outlet water temperature is guaranteed. Due to the arrangement of the water distribution pipes, disturbance of the water flow is reduced, mixing of cold water and hot water is effectively avoided, and the water outlet temperature is guaranteed. By means of the energy storage technology, the problem that supply and demand of energy are not matched in time and space is effectively solved, the requirements of users can be effectively met, the peak shaving capacity of the systemis improved, and space is provided for utilization of other renewable energy sources. Besides, the energy storage technology can replace a peak cold and heat source, the start-stop frequency of a unitis reduced, the unit is effectively protected, the service life of the unit is prolonged, and economic benefits and environmental benefits are achieved.
Description
technical field [0001] The invention belongs to the technical field of energy storage, and in particular relates to a dual-purpose energy storage water tank for cold storage and thermal storage. Background technique [0002] With the rapid development of my country's urbanization process, people's demand for cooling and heat has increased, resulting in a rapid increase in the cooling and heating load of buildings, which requires the unit to increase the cooling and heating capacity. On the other hand, when the system is in a period of low energy consumption, it is difficult to make rapid adjustments in time with the changes in the external cooling and heating loads. In addition, the current electricity price grading policy tends to be that the electricity price is very low during the nighttime hours when the load is low, and the electricity price is higher during the daytime hours when the load is high. Therefore, how to solve the contradiction between supply and demand of ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24F5/00F24F11/89F24F11/84F24F13/30
CPCF24F5/0017F24F11/89F24F11/84F24F13/30F24F2005/0032F24F2005/0025F24F2140/20Y02E60/14
Inventor 王海超吴小舟朱应杰
Owner DALIAN UNIV OF TECH