All-glass heat pipe type vacuum heat collecting pipe with CPC condenser

Abstract

The invention discloses an all-glass heat pipe type vacuum heat collecting pipe with a CPC condenser. A glass outer pipe and a glass heat pipe are included, wherein the glass heat pipe stretches intothe glass outer pipe and is in seamless and fixed connection with the opening position of the glass outer pipe. The vacuum degree in a cavity between the glass outer pipe and the glass heat pipe is smaller than 1x10-4Pa, meanwhile, a supporting structure and a getter are placed in the cavity, heat transfer working media are arranged in the glass heat pipe, the part, located in the glass outer pipe, of the glass heat pipe becomes a heating section, the part located outside the glass outer pipe is inserted in a hot water tank and becomes a condensation section, the outer wall face of the heatingsection is coated with a heat absorbing coating, the same glass is adopted in the glass outer pipe and the glass heat pipe, and the CPC condenser is arranged between the glass outer pipe and the glass heat pipe. The all-glass heat pipe type vacuum heat collecting pipe is adopted, the problem about air seal connection of a metal-glass vacuum heat collector is solved, meanwhile, the CPC condenser is inserted in the vacuum area between the heat pipe and the outer pipe, and the heat efficiency is improved.

Description

technical field [0001] The invention relates to an all-glass heat pipe vacuum heat collecting tube with a CPC concentrator, which is suitable for a solar concentrating heat collecting water heater of a non-tracking device system and belongs to the technical field of solar heat collecting. Background technique [0002] As a clean, non-polluting renewable energy, solar energy is considered to be an important part of the world's energy strategy. Its efficient development and utilization are especially important when dealing with challenging issues such as energy crisis and environmental pollution. important. According to the working range of solar collectors, they can be divided into three categories: low-temperature collectors (<100°C), medium-temperature collectors (100°C-250°C) and high-temperature collectors (>250°C). Domestic hot water below 100°C is produced by low-temperature collectors. At present, low-temperature collectors are mainly divided into flat plate col...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a kind of all-glass heat pipe vacuum heat collector with CPC concentrator (i.e. compound parabolic concentrator) for the above-mentioned existing problems, adopt all glass heat pipe vacuum heat collector, solve metal-glass The airtight sealing problem of the vacuum collector, meanwhile, a CPC concentrator is inserted in the vacuum area between the heat pipe and the outer pipe, which improves the thermal efficiency

Images