Phase change box and solar directional water feeding and taking cascade phase change heat storage device

A phase-change heat storage and solar collector technology, applied in the field of solar thermal utilization, can solve the problems of unstable energy storage mode, inability to classify storage, and insufficiency of water tanks, achieve classified management and utilization, and improve heat storage efficiency , The effect of enhancing the stability of water intake

Inactive Publication Date: 2020-12-01
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a phase change box and a solar directional aggressive water cascade phase change heat storage device to solve the problem of unstable energy storage methods in the prior art, limited heat storage, It cannot be classified and stored and the temperature of the water in the water storage tank drops when the solar energy stops heating the water storage tank at night, so that the water tank cannot meet the heating needs of users

Method used

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  • Phase change box and solar directional water feeding and taking cascade phase change heat storage device
  • Phase change box and solar directional water feeding and taking cascade phase change heat storage device

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Embodiment 1

[0029] A phase change box, such as figure 1 As shown, it includes a sheathed first cavity 302 and a second cavity 303, a plurality of support nets 7 and a plurality of first water inlets 304, and the upper surface and the lower surface of the first cavity 302 are sealed structures. , the upper surface of the second cavity 303 is a sealed structure, and the lower surface of the second cavity 303 is open; each of the support nets 7 is ring-shaped, and is arranged in the first cavity 302, and the first The cavity 302 is divided into multiple stages of phase change layers 301, and each of the phase change layers (301) is filled with phase change materials with decreasing temperature phase changes from top to bottom;

[0030] A plurality of first water inlets 304 are respectively arranged on each of the phase change layers 301 and pass through the first cavity 302 and communicate with the second cavity 303).

[0031] In this embodiment, the phase change box is divided into three p...

Embodiment 2

[0033] A solar energy directional water cascade phase change heat storage device, such as Figure 1-2 As shown, it includes: a plurality of phase change boxes described in Embodiment 1, a solar heat collector 1, a hot water storage tank 2, and a first temperature sensor 4, and the solar heat collector 1 is used to provide water at different temperatures; One end of the hot water storage tank 2 is connected to the water supply end of the solar heat collector 1, the other end of the hot water storage tank 2 is connected to the return water end of the solar heat collector 1, and the phase change box 3 passes through Support rod 6 is arranged in described heat storage tank 2; Phase change box 3 is arranged in described heat storage tank 2, and a plurality of described phase change boxes (3) are parallel to described solar heat collector ( 1) The tank of the hot water storage tank (2) connected to the water supply end; including a plurality of phase change layers 301, each of which...

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Abstract

The invention relates to a solar directional water feeding and taking cascade phase change heat storage device. The solar directional water feeding and taking cascade phase change heat storage devicecomprises a solar heat collector, a heat storage water tank, a phase change tank, a first temperature sensor and a controller, and is characterized in that the solar heat collector is used for providing water at different temperatures; one end of the heat storage water tank is connected with the water supply end of the solar heat collector, and the other end of the heat storage water tank is connected with the water return end of the solar heat collector; the phase change box is arranged in the heat storage water tank and comprises a plurality of phase change layers, each phase change layer isused for storing heat of the water at the different temperatures provided by the water supply end of the solar heat collector in a classified mode, and after the water supply end of the solar heat collector stops supplying the water at night, each phase change layer conducts phase change heat exchange on the stored heat and the water in the heat storage water tank to stabilize water layering in the heat storage water tank; the first temperature sensor is arranged at the water supply end of the solar heat collector and used for temperature information of the water supply end; and the controller is electrically connected with the solar heat collector and the first temperature sensor and can control the water at the different temperatures in the solar heat collector to enter the heat storagewater tank according to the temperature information.

Description

technical field [0001] The invention belongs to the technical field of heat utilization of solar energy, and in particular relates to a phase change box and a cascade phase change heat storage device for solar energy directional water intake. Background technique [0002] Energy is an indispensable resource for human survival. With the rapid development of industrialization and the increase of the global population, energy is increasingly in short supply, and energy issues are closely watched by people. How to improve energy efficiency and develop new energy is the common need of all mankind. important issues facing the world. [0003] Clean, environmentally friendly and renewable new energy has a wide range of applications. Among them, solar thermal system is a relatively mature application. The more traditional way of storing solar energy is to store the energy collected by solar collectors by using hot water storage tanks. , but due to the different heat collection effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24D11/00F24S60/10F24S50/40F24S80/00F24S80/30
CPCF24D11/00F24S50/40F24S60/10F24S80/00F24S80/30Y02B10/20Y02E10/40
Inventor 李勇梁小玉刘艳峰王登甲董明月
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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