Full-glass dual-channel vacuum tube heat collector

A vacuum tube heat collector and dual-channel technology, which is applied to solar heat collectors, solar heat collectors using working fluids, heating devices, etc., can solve the problems of split solar thermal application systems that cannot operate and increase investment costs. Achieve the effect of low cost, high cost performance and low cost

Inactive Publication Date: 2010-07-28
吴艳频 +2
View PDF6 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned types of vacuum heat collecting tubes have a common shortcoming, namely: due to structural defects, when they form a split solar thermal application system, a forced circulation system is generally used (a split solar hot water system refers to a water storage tank and a collector. The system installed with a certain distance between the heat collectors, the forced circulation system refers to the system that uses the pump to force the heat transfer medium to circulate through the heat collector), which makes the operation of the split solar thermal application system depend on the electric control system and Water pump, once the electric control system or the water pump fails, the split solar thermal application system cannot operate. In addition, the all-glass vacuum collector with U-shaped tube inserted and the metal-glass structure vacuum collector use a large number of colored Metals, which directly caused the rise in investment costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Full-glass dual-channel vacuum tube heat collector
  • Full-glass dual-channel vacuum tube heat collector
  • Full-glass dual-channel vacuum tube heat collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: thermal medium: water

[0031] An all-glass double-channel vacuum tube heat collector, comprising an outer glass tube 1, a heat-absorbing glass tube 2, an insulating glass tube 3 and an inner glass tube 4, the outer glass tube 1, the heat-absorbing glass tube 2, the insulating glass tube 3 and the inner glass tube The top of the glass tube 4 is coaxially arranged and sealed on the glass flange 5 by high temperature fusion. A vacuum exhaust hole 6 is provided at the bottom of the outer glass tube 1. The outer glass tube 1, the heat-absorbing glass tube 2 and the glass flange 5 The cavity between them is evacuated through the vacuum exhaust hole 6 to form a closed vacuum cavity 7 to form a heat absorber; the interlayer between the heat absorbing tube glass 2 and the insulating glass tube 3 constitutes a heated channel 8 of the thermal medium ( double as a thermal medium outflow channel), the interlayer between the insulating glass tube 3 and the inner glass ...

Embodiment 2

[0039] The structure of embodiment 2 is basically the same as embodiment 1, the difference is:

[0040] The shapes of the outlet 14 and the inlet 15 are flat.

[0041] An annular groove 18 for fitting a sealing gasket is provided between the outlet 14 and the inlet 15 , and an annular groove 19 for fitting a sealing gasket is arranged on the periphery of the outlet 14 .

[0042] On the outer side wall of the glass flange 5 there is no collar 17 for assembly.

[0043] The fusion sealing structure of the glass tube group and the glass flange is as follows: image 3 shown.

Embodiment 3

[0045] The structure of embodiment 3 is basically the same as embodiment 1, the difference is:

[0046] Two symmetrical notches 20 are arranged on the circular side of the glass flange 5, the notches 20 are convenient for the installation and replacement of the single tube in the all-glass double-channel vacuum tube heat collector, and the all-glass double-channel vacuum tube can be disassembled without order and can be installed. First remove the broken all-glass dual vacuum tube, then install the new tube.

[0047] The two ends of the heat-insulating glass layer 3 are fused to the inner glass tube 4 with a smaller diameter after necking, so that the thermal working medium in the glass inner tube is reduced, which is beneficial to improving the light-to-heat conversion efficiency of solar energy.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a full-glass dual-channel vacuum tube heat collector, which comprises an outer glass tube, a heat-absorbing glass tube, an isolating glass tube and an inner glass tube. The full-glass dual-channel vacuum tube heat collector is characterized in that: the tops of the outer glass tube, the heat-absorbing glass tube and the isolating glass tube are smelted and sealed on a glass flange at high temperature and a cavity among the outer glass tube, the heat-absorbing glass tube and the glass flange is vacuumized to form a vacuum cavity; an interlayer between the heat-absorbing glass tube and the isolating glass tube forms a heated channel and the interlayer between the isolating glass tube and the inner glass forms an insulating layer; the outer ring of the glass flange is provided with an outlet which is communicated with the heated channel and the middle of the glass flange is provided with an inlet which is communicated with an inflow channel. The full-glass dual-channel vacuum tube heat collector combines two operation modes of natural circulation and forced circulation, can be widely applied to the integration of building solar energy, can be applied to the solar energy power generation and has the advantages of novelty, simple operation, low fault and low cost.

Description

technical field [0001] The invention relates to solar energy utilization equipment, in particular to an all-glass double-channel vacuum tube heat collector used in solar water heating systems, solar air conditioners, and solar thermal power generation to convert solar energy into light and heat. Background technique [0002] In the solar thermal utilization system, how to efficiently collect sunlight and convert it into heat energy is an important technical key. The vacuum heat collector is a kind of heat collector suitable for solar heat utilization in medium and high temperature environments. It is mainly used in solar hot water, solar air conditioning, industrial heat applications, and solar power generation. At present, there are two main types of popular products: all-glass vacuum tube collectors and metal-glass structure vacuum collectors, among which: 1. All-glass vacuum tube collectors are composed of outer glass tubes, inner glass tubes, selective absorption coating...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/24F24J2/05F24S10/70F24S10/40
CPCY02E10/44
Inventor 吴艳频
Owner 吴艳频
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap