A solar water heating system water pipe defrosting device and its solar water heater

Abstract

The invention provides a solar water heating system water delivery pipe thawing device and a solar water heater, comprising a heat pipe, the heat pipe includes an evaporation end and a condensation end, and the condensation end is arranged in the water delivery pipe. The present invention applies heat pipes to the thawing of solar pipelines for the first time, reduces circulation pumps, avoids the unreliability of pump driving to increase system operation, and saves costs, and the thawing device is an independent device that can be installed and disassembled independently.

Description

technical field [0001] The invention belongs to the field of solar energy, and in particular relates to a device for unfreezing a water delivery pipe of a solar water heating system. Background technique [0002] At present, the solar hot water utilization system has developed rapidly in the field of solar energy application and has been widely promoted and widely used in production and life. However, there are still great restrictions on the use of solar water heating systems in winter or in alpine regions, mainly because the water pipelines of solar water heating systems will freeze due to cold weather, resulting in shortened running time or unusable or even freezing damage to the pipeline system , so the wider use of solar water heating systems in time and space is restricted, and the utilization of solar energy is greatly limited. [0003] The method that usually adopts outside the water pipe to wrap the insulation material prevents the water pipe from freezing, but thi...

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Problems solved by technology

Patent 2 (Patent No. CN101818952A) utilizes water mixing valves, water tanks, overflow pipes, emptying valves and other components to realize integrated operations such as emptying and mixing of water pipes to achieve the purpose of thawing and antifreezing, but emptying the hot water system will cause Wastes water and limits access to solar energy

Patent 3 (Patent No. CN201903188U) and other patented technologies use double water storage tanks, which rely on storing hot water in the auxiliary water tank and relying on valve control to make the hot water flow through the water pipeline for antifreeze and thawing, which increases the complexity of the system and prevents the valve from freezing. Bad conditions will still limit the normal operation of the system

The above patented technologies generally use water pumps to drive work, and use valves or auxiliary bypass / water tanks, etc., which are difficult to install, cumbersome to operate, and difficult to implement. There are obvious defects in comprehensive energy saving, cost, convenience, and effectiveness.

[0004] In view of the above problems, the present invention provides a new device for unfreezing the water delivery pipes of the solar water heating system, so as to solve the problem of freezing of solar pipelines in winter

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