Automatic leakage-stopping apparatus of full glass solar vacuum tube breakage

Abstract

The invention relates to an automatic leak-stopping device for the breakage of an all-glass solar vacuum tube; wherein, the nozzle of the solar vacuum tube is provided with a floating ball which is slightly bigger than the tube diameter, and a height limiter which can prevent the floating ball from passing is arranged above the floating ball. Or the nozzle of the solar vacuum tube is provided with a fixed cylinder and the floating ball which is slightly bigger than the inner neck of the cylinder, and the height limiter which can prevent the floating ball from passing is arranged above the floating ball. The floating ball is the high temperature resistant material ball. The fixed cylinder is fixed by an internal sleeve and an upper cylinder, the internal sleeve of the cylinder is embedded in the glass solar vacuum tube, the upper cylinder of the cylinder and the outer tube of the vacuum tube have the same diameter, and a neck is arranged at the connection part between the inner sleeve and the upper cylinder. The device of the invention fully adopts a mechanical structure, and the ball floats at the top part of the device when in normal work; a solar vacuum thermal-collecting tube is communicated with a water tank or a union device, after the all-glass solar vacuum tube is broken, the water is leaked from the nozzle under the action of natural gravity, the water leakage can cause the vacuum tube and the device to generate negative pressure, so that the floating ball can be absorbed and falls to the neck area of the device under the double actions of pulling and water leakage pressure, so as to lead the device to be in a closing and sealing state.

Description

1. Technical field [0001] The invention relates to an automatic leak-stopping device for all-glass solar vacuum tube damage, and is also an important part of an all-glass solar water heater or an all-glass solar vacuum tube heat collector. 2. Background technology [0002] In all-glass solar vacuum tube water heaters and all-glass solar vacuum tube collectors used in solar centralized hot water supply systems, the investment in non-pressurized (that is, water in all-glass solar vacuum tubes) solar water heaters or solar collectors is small , easy to use, hot water mostly uses natural circulation. However, because the all-glass solar vacuum tube is easily damaged by various factors (such as external force impact, alternating hot and cold water cracking, freezing cracking, natural cracking of glass, etc.), the water heater or hot water system is completely paralyzed and cannot be used. A lot of waste is generated, especially in large-area solar centralized hot water supply sy...

AI Technical Summary

Problems solved by technology

However, because the all-glass solar vacuum tube is easily damaged by various factors (such as external force impact, alternating hot and cold water cracking, freezing cracking, natural cracking of glass, etc.), the water heater or hot water system is completely paralyzed and cannot be used. A lot of waste is generated, especially in large-area solar centralized hot water supply systems, the probability of single vacuum tube breakage among thousands of all-glass solar vacuum tubes increases, which is more likely to cause the overall system to be paralyzed, with huge impact and loss

[0003] In order to change this situation, the prior art discloses a spring connecting rod and piston structure, which uses a metal support rod to support the bottom of the solar vacuum tube. When the bottom of the solar vacuum tube is broken, the support rod stretches out or falls off, and the upper spring piston blocks Hold the nozzle, but in more cases, the vacuum tube is only cracked and the whole or the bottom is not broken, there will still be water leakage, but the above device will not work

Such spring connecting rods and pistons cannot actually be used in practical

Images