Movable phase change heat storage and cold storage device

A phase-change heat storage and cold storage device technology, applied in the field of phase-change energy storage, can solve the problems of low heat storage and cold storage capacity, low efficiency of cold and heat recovery, long charging and discharging time, etc., to increase the heat storage of the device Cooling storage capacity, shortened charging and discharging time, and compact equipment structure

CN111121514APending Publication Date: 2020-05-08NANJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-05-08

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Abstract

The invention discloses a movable phase change heat storage and cold storage device. The movable phase change heat storage and cold storage device comprises heat transfer plates, a support, casing pipes, main pipes, a storage tank, a phase change working medium and the like. The heat transfer plates are the main elements for heat exchange. Heat is stored and released through the phase change working medium, the main pipes and the casing pipes and is supplied to the heat storage and cold storage device and an external connector. In the heat storage process, steam passes through the heat transfer plates through the main pipes, heat is transmitted to the phase change working medium through the heat transfer plates, the phase change working medium can absorb heat, be liquefied and stores heat,the working medium is transported to the designated position in a box body, cold water passes through the heat transfer plates through the casing pipes, the heat is transmitted to the cold water fromthe phase change working medium through the heat transfer plate, hot water is obtained, the phase change working medium discharges heat, is solidified and releases heat, and the cold storage processis similar to the heat storage process. In addition, by means of the designed movable phase change heat storage and cold storage device, the heat capacity or the cold capacity can be stably output with an expected temperature, characteristics that the heat storage density of a phase change material is high, and the phase change process is approximately isothermal are utilized, and therefore the heat storage and cold storage device can have higher heat storage and cold storage efficiency and a wider application prospect.
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Description

technical field

[0001] The invention relates to a mobile phase change heat storage and cold storage device, which belongs to the technical field of phase change energy storage. Background technique

[0002] Energy is the basis of human survival and development, and the massive consumption of fossil energy has made the problems of energy shortage and environmental pollution increasingly prominent. Our country is a big country of energy consumption, but in the process of energy utilization, there are phenomena such as low conversion efficiency and insufficient utilization, so it is of great practical significance to improve the utilization rate of energy.

[0003] Energy storage plays a very important role in saving energy and improving energy utilization. The waste gas and waste heat generated in industrial production are directly discharged, causing a lot of energy waste. The mobile phase change heat storage and cold storage device has the ability to break the heating area o...

Examples

Embodiment Construction

[0037] In order to further illustrate the content, features and functions of the present invention, it will be described in detail in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to these embodiments.

[0038] Such as Figure 1-4As shown, a mobile phase change heat storage and cold storage device includes a storage tank 1, a main pipe 2, a heat transfer plate 3, a phase change working medium 4, a bracket 5, a casing 6, an insulation layer 7 and a box body 8. The storage tank 1, the main pipe 2, the heat transfer plate 3, the phase change working medium 4, the bracket 5, the casing 6 and the insulation layer 7 are arranged inside the box body 8, and the storage tank 1 includes a tank body and a base 1.6, The outer surface of the tank is covered with the insulation layer 7, the heat transfer plate 3, the phase change working medium 4 and the support 5 are arranged inside the tank body, the heat transfer plate 3 is ...