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Vacuum tube for solar water heater

A technology of solar water heaters and vacuum tubes, applied in the field of vacuum tubes, can solve the problems of small lighting area, small focusing effect, poor heat collection effect, etc., and achieve the effect of increasing oblique lighting area, direct lighting area, and rapid and efficient heat production

Inactive Publication Date: 2009-05-27
邹立强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vacuum tubes of these structures, the inner glass tubes are all cylindrical, refer to the attached figure 1 , the maximum heat absorption area is about 180 degrees, the lighting area is small, the coated mirror only plays a reflective role, and the focusing effect is very small, so the heat collection effect is not good

Method used

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  • Vacuum tube for solar water heater
  • Vacuum tube for solar water heater
  • Vacuum tube for solar water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1, a vacuum tube for solar water heaters, including a cylindrical outer glass tube 1, a vacuum layer 2, an inner glass tube 3, the outer surface of the inner glass tube is attached with an absorption coating 4, the inner glass tube 3 is diamond-shaped, and the cylindrical outer glass The inner surface of the lower shadow side of the tube 1 is plated with a metal plating layer 5.

Embodiment 2

[0012] Example 2, a vacuum tube for solar water heaters, including a cylindrical outer glass tube 1, a vacuum layer 2, an inner glass tube 3, the outer surface of the inner glass tube is attached with an absorption coating 4, and the inner glass tube 3 is oval, with a cylindrical outer surface. The inner surface of the lower back surface of the glass tube 1 is plated with a metal plating layer 5.

Embodiment 3

[0013] Embodiment 3, a vacuum tube for solar water heaters, including a cylindrical outer glass tube 1, a vacuum layer 2, an inner glass tube 3, the outer surface of the inner glass tube is attached with an absorption coating 4, the inner glass tube 3 is rectangular, and the outer glass is cylindrical A stainless steel semi-circular lens 6 is placed on the inner surface of the lower back surface of the tube 1.

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Abstract

The invention relates to a vacuum pipe of a solar energy water heater, relating to components of the solar energy water heater, comprising a cylindrical external glass pipe, a vacuum layer and an internal glass pipe. The external surface of the internal glass pipe is coated with an absorption coating. The internal glass pipe is rhombic, elliptic, quadrate or polygonal. The shade side of the lower portion of the cylindrical external glass pipe is provided with a semicircle mirror with a heat absorption area of 360 degrees. The vacuum layer is enlarged, and the projective daylighting area and the oblique daylighting area are greatly increased. The objective sunlight is focused to a line to realize real focusing, and heat generation is quick and high effective.

Description

Technical field [0001] The invention relates to components for solar water heaters, in particular to vacuum tubes. Background technique [0002] The traditional vacuum tube for solar water heaters is composed of a cylindrical outer glass tube, a vacuum layer, and a cylindrical inner glass tube. The outer surface of the inner glass tube is covered with an absorption coating. In order to increase the heat-collecting capacity of the heat-collecting vacuum tube, Chinese patent CN200420107759 discloses a "solar water heater with a heat-collecting vacuum tube with a light-concentrating reflective layer", which is coated with a metal coating on the inner surface of the lower part of the outer glass tube; Chinese patent CN200720116589 discloses "Solar water heater high-efficiency vacuum collector tube", the inner and outer glass tubes are designed into non-concentric circles, and the center of the inner glass tube deviates downward from the center of the outer glass tube. In these vacuum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/05F24J2/24F24S10/40F24S10/70
CPCY02E10/44
Inventor 邹立强
Owner 邹立强
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