Solar water heater

Abstract

The invention relates to a solar water heater which belongs to the technical field of the water heater and comprises a water storage tank and vacuum glass heat collecting pipes, wherein the water storage tank is provided with a hot water outlet and a cold water inlet. The solar water heater is characterized in that the vacuum glass heat collecting pipes are inserted and sleeved at the outer parts of metal pressure-bearing heat absorbing pipes communicated with the water storage tank, a cold water conveying pipes communicated with the cold water inlet are inserted in part of the metal pressure-bearing heat absorbing pipes at the lower part, and the number of the cold water conveying pipes communicated with the cold water inlet and inserted into the metal pressure-bearing heat absorbing pipes is 1 / 10-1 / 2 of the number of the metal pressure-bearing heat absorbing pipes. The metal pressure-bearing heat absorbing pipes are communicated with the water storage tank, water in the water storage tank and water in the metal pressure-bearing heat absorbing pipes are convected so as to lead the temperature of water in the water storage tank to rise, and the cold water conveying pipes are inserted into part of the metal pressure-bearing heat absorbing pipes so as to correspondingly prolong the adding and replacing time of cold water, therefore, the fall time of the temperature of hot water in the water storage tank is prolonged, and the supply time of hot water is increased.

Description

1. Technical field: [0001] The invention relates to a solar water heater, which belongs to the technical field of water heater structures. 2. Background technology: [0002] The current solar water heater mainly includes a water storage tank and a vacuum glass heat collecting tube. There is a heat-absorbing tube in the vacuum glass heat-collecting tube. The heat-absorbing tube is equipped with a heat-conducting medium. Water outlet and cold water inlet connected to mains. The disadvantage of this structure is that the heat of the heat-absorbing pipe depends on its end to exchange heat with the water in the water storage tank, the heat loss is relatively large, the water temperature in the water storage tank drops rapidly, and the supply time of heating water is short. Affected people's use; Its another weak point is that the cold water of running water pipe directly enters water storage tank, has reduced the hot water temperature of hot water outlet. 3. Contents of the in...

AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that the heat of the heat-absorbing pipe depends on its end to exchange heat with the water in the water storage tank, the heat loss is large, the water temperature in the water storage tank drops quickly, and the supply time of heating water is short. Affect people's use; Another shortcoming is that the cold water of the tap water pipe directly enters the water storage tank, which reduces the temperature of the hot water at the hot water outlet

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