A concentrating solar water heater device based on phase change heat storage

Abstract

A concentrating solar water heater based on phase change heat storage includes: cylindrical lens concentrator, vacuum heat collecting tube, phase change medium, aluminum tank wall, water heater substrate, heat exchange tube, aluminum alloy outer frame, reinforcing rib, small platform , cold jellyfish pipe, hot water mother pipe. The cylindrical lens concentrator covers the top of the vacuum heat collecting tube, and the light incident on the cylindrical lens concentrator converges into an optical focal zone. The lower part of the cylindrical lens concentrator is connected with the aluminum groove wall on the water heater base plate, and the two aluminum groove walls form two plane mirrors opposite to each other at an angle, and part of the light refracted by the concentrator converges and projects to the vacuum heat collecting tube at the lower part The other part of the light that is not projected to the vacuum heat collecting tube is projected onto the vacuum heat collecting tube after being reflected by the aluminum tank wall plane mirror. The vacuum heat collecting tube is equipped with a phase change material and a U-shaped heat exchange tube inside, and a card slot is provided on the water heater base plate. The vacuum heat collecting tube is fixedly locked in the slot.

Description

technical field [0001] The invention relates to the field of solar water heaters, in particular to a concentrated solar water heater device based on phase change heat storage. Background technique [0002] Today, when the global energy shortage and climate deterioration seriously threaten economic development and people's living health, all countries in the world are seeking new energy alternative strategies in order to achieve sustainable development and gain an advantage in development. With the continuous strengthening of people's awareness of energy saving and environmental protection, solar energy has quickly won the favor of consumers due to its significant advantages in safety, energy saving, environmental protection, hygiene, and economy. Solar water heaters convert sunlight energy into heat energy, and heat water from low temperature to high temperature, so as to meet the hot water use in people's life and production. Since my country introduced the sample tube of ...

AI Technical Summary

Problems solved by technology

The sanitation problem of solar water heaters, the water in the water tank of solar water heaters starts to be replenished before it is exhausted, so that part of the water accumulates in the water tanks of water heaters for a long time and becomes "dead water", which does not flow and causes the water quality of the water body to deteriorate, and solar water heaters are even more The "dead water" is repeatedly heated, and the "dead water" is in a high-temperature state for a long time, producing some carcinogenic nitrites, which are further concentrated after long-term consumption, which again aggravates the deterioration of water quality, making the water in solar water heaters not only undrinkable, Even taking a bath and washing vegetables is also very reluctant, and can only be used for washing clothes, which seriously limits the application range of solar water heaters

The installation problem of solar water heaters. The installation of solar water heaters is placed on the top of the building. It is inconvenient to install, and it cannot fit well with the building, which affects the overall image of the building. At the same time, the installation is not reliable, and there have been incidents of water heaters falling from the roof and hurting people.

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