Heat collecting tube for water heater

A technology of heat collecting tubes and water heaters, applied in the field of hot water devices, can solve the problems of reducing the efficiency of solar water heaters, easily destroying the vacuum degree of heat collecting tubes, and heat loss

Inactive Publication Date: 2018-08-07
乐山市沙湾区薪火水箱制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the vacuum needle valve used in the heat collecting tube of the existing water heater will reduce the vacuum degree after a long time, especially in areas with large...

Method used

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  • Heat collecting tube for water heater
  • Heat collecting tube for water heater

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 and figure 2 The heat collecting tube of the water heater shown includes a glass tube 1, a heat absorbing tube 2, a sealing ring 3 and a sealing retaining ring 4. The glass tube 1 is set outside the heat absorbing tube 2, and the glass tube 1 and the heat absorbing tube 2 are Shaft installation, the two ends of the heat-absorbing tube 2 protrude from the two ends of the glass tube 1, the sealing retaining ring 4 is welded on the heat-absorbing tube 2, and the sealing ring 3 is sleeved on the end of the heat-absorbing tube 2, through the gasket Cooperate with the sealing retaining ring 4 and the end face of the glass tube 1 to form a seal, and the side wall of the sealing ring 3 is provided with a needle valve 5;

[0019] The needle valve 5 includes a valve body 51 and an air outlet pipe 52 vertically arranged on the side wall of the valve b...

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Abstract

The invention discloses a heat collecting tube for a water heater. The heat collecting tube comprises a glass tube, a heat absorbing tube, a sealing ring and sealing baffle rings, wherein a vacuum needle-type valve is arranged on a side wall of the sealing ring; the vacuum needle-type valve comprises a valve body and a gas outlet tube which is perpendicularly arranged on a side wall of the valve body; the gas outlet tube communicates with an inner cavity of the valve body; a gas inlet tube is arranged on a position where the valve body is arranged on the lower part of the gas outlet tube; a first valve seat and a second valve seat are arranged on a wall of the gas inlet tube; a valve rod is arranged in the valve body; a first sealing part and a second sealing part respectively matched withthe first valve seat and the second valve seat are arranged on the valve rod; and a soft sealing part is arranged between the first sealing part and the first valve seat or between the second sealingpart and the second valve seat. The invention technically aims to provide the heat collecting tube for the water heater which can keep a vacuum degree of the heat collecting tube for a long time, ishigher in reliability and is provided with the double-sealing vacuum needle-type valve.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a water heater heat collecting tube. Background technique [0002] Sunlight is a clean and renewable energy source, which can obtain hot water through solar water heaters, thereby reducing the use of natural gas and coal and non-renewable energy sources. [0003] However, the vacuum needle valve used in the heat collecting tube of the existing water heater will reduce the vacuum degree after a long time, especially in areas with large temperature difference changes, it is very easy to destroy the vacuum degree in the heat collecting pipe, resulting in the loss of collected heat. Thereby reducing the efficiency of solar water heaters. Contents of the invention [0004] In view of the above existing problems, the technical purpose of the present invention is to provide a water heater heat collecting tube which can maintain the vacuum degree of the heat collecting tube for a long tim...

Claims

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Application Information

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IPC IPC(8): F24S10/70F16K1/00F16K27/02F16K41/02
CPCY02E10/44F16K1/00F16K27/0254F16K41/02
Inventor 宋旭
Owner 乐山市沙湾区薪火水箱制造有限公司
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