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Method and product for two-phase flow heat exchange and heat collection in vacuum heat-collecting pipes

A vacuum heat collecting tube and heat collecting tube technology, which is applied to solar heat collectors, solar heat collectors using working fluid, heating devices, etc. , the effect of less heat exchange links and short suction distance

Inactive Publication Date: 2013-09-18
HAINING IEMYC SOLAR ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But in general, the application products of vacuum heat collecting tubes are not rich enough.

Method used

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  • Method and product for two-phase flow heat exchange and heat collection in vacuum heat-collecting pipes
  • Method and product for two-phase flow heat exchange and heat collection in vacuum heat-collecting pipes
  • Method and product for two-phase flow heat exchange and heat collection in vacuum heat-collecting pipes

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Embodiment Construction

[0029] figure 1 with figure 2 A first embodiment of the present invention is collectively given. figure 1 with figure 2 Among them, two rows of trumpet-shaped connecting barges 2 are welded on both sides of the united main pipe 1, and the port of the barge 2 has a flanging, and the flanging of the barge 2 is connected with the glass tube 4 in the heat collecting tube 3 with a sealing ring 5 to form a A heat collection device for two-phase flow heat exchange in a vacuum heat collection tube. The union main pipe 1 is provided with a casing 6, and the casing 6 is filled with heat insulating material. One end of the united main pipe 1 is connected with a drainage barge 7; the other end protrudes and communicates with the cold end 9 of the two-phase flow heat exchange coil in the heat storage tank 8, and communicates with the external water source 11 and the drain through the water supply barge 10. The pressure valve 12 is connected. The top of the cold end 9 communicates wi...

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Abstract

The invention relates to a method for two-phase flow heat exchange in vacuum heat-collecting pipes. A solar-energy heat-collecting device with two-phase flow heat exchange in vacuum heat-collecting pipes, manufactured according to the method, comprises vacuum heat-collecting pipes and a header device, and is characterized in that the level error at two ends of the heat-collecting pipes is less than + / -35mm; by adjusting the state of the header pipe and by arranging water-retaining and gas-retaining objects on the header device or at pipe orifices of the heat-collecting pipes, so that water and gas are always retained in the heat-collecting pipes; and the water-retaining and gas-retaining objects comprise connecting pipes sealing rings and water-retaining and gas-retaining rings. The method provided by the invention has the beneficial effects that two-phase coexistence and two-phase flow heat exchange circulation in the heat-collecting pipes are realized, the two-phase flow heat exchange circulation and heat transfer capacities are strong, the isothermal property is good, the heat exchange links are less, the heat sink is low, the output temperature is convenient to adjust, and high reliability, frost resistance and high cost-performance ratio are realized. According to the method provided by the invention, the usage of the vacuum heat-collecting pipes and the heat-collecting device thereof is expanded, i.e. seawater is led in through the heat-collecting pipes to be directly distilled, and the generated steam is used to realize multi-effect distillation. Three embodiments are given in combination with attached figures.

Description

technical field [0001] The invention relates to a method and a product for two-phase flow heat exchange and heat collection in a vacuum heat collection tube. Background technique [0002] The existing vacuum heat collecting tube has high heat collecting temperature, small heat loss and high degree of industrialization, and the intubation type solar water heater manufactured with it can provide domestic hot water above 50°C in winter. But in general, the application products of vacuum heat collecting tubes are not rich and developed enough. Contents of the invention [0003] The object of the present invention is to provide a method and a product for heat exchange and heat collection of two-phase flow in a vacuum heat collection tube. [0004] The method adopted by the present invention to solve the technical problem is to use the vacuum heat collecting tube and the joint device connected with the heat collecting tube to form a solar heat collecting device with two-phase ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/05F24J2/26F24J2/32F24J2/10F24J2/40F24J2/46F24S10/40F24S10/75F24S10/95F24S23/70
CPCY02E10/44
Inventor 施国樑
Owner HAINING IEMYC SOLAR ENERGY TECH
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