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Untime heat water supplying solar water heater

A solar water heater and solar energy technology, which is applied to solar thermal collectors, solar thermal collectors using working fluids, solar thermal storage, etc., can solve problems such as unavailability of hot water and unutilized thermal energy.

Inactive Publication Date: 2007-08-15
张建高
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current domestic solar water heaters, the hot water trapped in the solar vacuum heat collecting tubes cannot be used, and its heat is emitted to the atmosphere at night. After calculation, the current market-leading product φ58×1800 all-glass vacuum tube household solar water heaters, the water volume in the vacuum tubes accounts for the total 28-32% of the water volume, that is to say, 28-32% of the heat energy absorbed by the solar water heater is not used

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0024] An all-glass vacuum tube solar water heater that supplies hot water irregularly. Its structure is shown in Figure 1 and Figure 2. It is connected with circulation pipe 7 and arranged on the outside of thermal insulation water tank 2. One end of water inlet branch pipe 12 is connected with water distribution pipe 11, and its other end is placed at the bottom of solar vacuum heat collection pipe 5. 20 φ58×1800 all-glass vacuum tubes are used, and the water distribution pipe is placed outside the heat preservation water tank. The diameter of the water distribution pipe is 40mm, and the diameter of the water inlet branch pipe is 10mm.

Embodiment 2

[0026] Another all-glass vacuum tube solar water heater that supplies hot water irregularly. Its structure is shown in Figure 3 and Figure 4. It uses 20 φ58×1800 all-glass vacuum tubes, and the water distribution pipe is placed in the heat preservation water tank. The diameter of the water distribution pipe is 40mm, the diameter of the inlet branch pipe is 10mm. All the other are identical with embodiment 1.

Embodiment 3

[0028] An all-glass vacuum tube solar water heater that supplies hot water irregularly. Its structure is shown in Figure 5 and Figure 6. It adopts 24 φ47×1500 all-glass vacuum tubes. The diameter is 30mm, and the diameter of the water inlet branch is 6mm. All the other are identical with embodiment 1.

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Abstract

The invention provides a solar-energy water heater which can supply water time anytime, characterized in that a distributing tube (11) is connected with a water feeding tube (7), at the outer or inner side of a thermal-insulated water tank (2) or embedded in a thermal-insulated layer of the water tank, one end of a water inlet tube (12) is connected with the distributing tube (11), while another end is arranged at the bottom of a solar-energy vacuum heat collecting tube (5), a blow-off valve (13) is mounted on a tube between a feeding control valve (8) and the distributing tube (11), while its mounted height is lower than the bottom of the solar-energy vacuum heat collecting tube (5). The invention has the advantages that 1, the invention can utilize the hot water in the solar-energy vacuum heat collecting tube, while said hot water is 28-32% of total hot water, 2, the water inlet tube in the solar-energy vacuum heat collecting tube is communicated with the distributing tube, via a controller to use cold water to lift the hot water at application temperature in the solar-energy vacuum heat collecting tube into the thermal-insulated water tank, to be used anytime, 3, using blow-off valve to timely discharge the sewage in the solar-energy vacuum heat collecting tube, without detaching the solar-energy vacuum heat collecting tube.

Description

technical field [0001] The invention relates to a solar energy utilization device, in particular to a solar water heater which supplies hot water irregularly. Background technique [0002] The all-glass vacuum tube solar water heater is a mature product, and its market is developing from towns to rural areas. The economic conditions in rural areas are relatively poor, and solar water heaters costing 2,000-4,000 yuan per unit are still relatively expensive for farmers. How to reduce costs has become a research and development topic for solar water heater manufacturers and researchers on the premise of ensuring quality. In the current domestic solar water heaters, the hot water trapped in the solar vacuum heat collecting tubes cannot be used, and its heat is emitted to the atmosphere at night. After calculation, the current market-leading product φ58×1800 all-glass vacuum tube household solar water heaters, the water volume in the vacuum tubes accounts for the total 28-32% of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/00F24D17/00F24J2/05F24J2/24F24J2/46F24S10/40F24S10/70
CPCY02B10/70Y02E10/44F24J2/345F24J2/055Y02B10/22F24S10/45F24S60/30Y02B10/20
Inventor 张建高傅莉霞郑荣进
Owner 张建高
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