Rod insertion pressure bearing type solar energy water heater

Abstract

A solar water heater adopts a pressure-bearing water tank and a vacuum heat-collecting pipe and it is characterized by setting a metal heat-conducting bar. The insert section in the upper part of the metal heat-conducting bar is plugged in the inner container of the water tank and the extension section in the lower part of the metal heat-conducting bar is plugged in the vacuum heat-collecting pipe. The inserting mouth of the metal heat-conducting bar on the inner container of the water tank forms a plugging and the mouth of the vacuum heat-collecting pipe is disposed in the insulating layer of the pressure-bearing water tank and in the preset mouth of the casing.

Description

technical field [0001] The invention relates to a solar water heater, in particular to a pressurized solar water heater capable of realizing rapid transfer of heat energy. Background technique [0002] The existing non-pressurized solar water heater has several defects because the open end of the vacuum heat collecting tube is directly placed in the water tank: [0003] 1. Only the rubber ring is used to seal the vacuum heat collecting tube and the water tank, which cannot fundamentally solve the problem of water leakage and cannot withstand the water pressure of the pipe network; [0004] 2. The vacuum heat collecting tube has poor pressure resistance and is explosive under the action of the water pressure of the pipe network. If the thickness of the glass of the vacuum heat collecting tube is increased to improve the pressure resistance, the heat absorption capacity of the vacuum heat collecting tube will be greatly reduced; [0005] 3. When the vacuum heat collecting tu...

AI Technical Summary

Problems solved by technology

[0003] 1. Only the rubber ring is used to seal the vacuum heat collecting tube and the water tank, which cannot fundamentally solve the problem of water leakage and cannot withstand the water pressure of the pipe network;

[0004] 2. The vacuum heat collecting tube has poor pressure resistance and is explosive under the action of the water pressure of the pipe network

If the thickness of the glass of the vacuum heat collecting tube is increased to improve the pressure resistance, the heat absorption capacity of the vacuum heat collecting tube will be greatly reduced;

[0005] 3. When the vacuum heat collecting tube cannot absorb heat in continuous cloudy days in winter, the water in the tube will freeze and cause the tube to burst

[0006] 4. Since it is not under pressure, when the hot water it releases is mixed with tap water, it is easy to appear hot and cold due to unstable tap water pressure;

[0007] 5. The difference between the liquid level of the water tank and the water outlet leads to the difference in the water pressure of the water outlet. The water pressure is generally low and the bathing comfort is poor;

[0008] 6. The inner wall of the vacuum heat collecting tube is easy to form scale, which affects the heat transfer;

[0009] 7. Once the vacuum heat collecting tube is damaged, it will affect the operation of the whole machine

There are two deficiencies in this structural form. First, the connection between the heat pipe and the water tank is flexibly connected. Whether it is sealed by a sealing ring or a threaded sealing connection, the problem of water leakage cannot be fundamentally solved; secondly, the inner sleeve is used. The structural form of the tube is still filled with liquid water, so the excellent thermal conductivity of the metal material is not maximized, and the thermal conductivity is not maximized.

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