Air heated anti-freezing solar energy collector system

A technology of solar collectors and temperature sensors, which is applied in the field of antifreeze solar collector systems, can solve problems such as environmental pollution, frozen cracked pipes, and large initial investment in antifreeze systems, so as to eliminate environmental pollution and reduce initial investment costs , a wide range of effects

Inactive Publication Date: 2011-06-29
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of residual water easily remaining in the return and emptying system, resulting in cracking of valves and pipelines, the problem of freezing and cracking of circulating working fluid due to low temperature, and the large initial investment and cost of antifreeze system. Easy to cause environmental pollution, and then provide a wind-heated antifreeze solar collector system

Method used

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  • Air heated anti-freezing solar energy collector system
  • Air heated anti-freezing solar energy collector system
  • Air heated anti-freezing solar energy collector system

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specific Embodiment approach 1

[0007] Specific implementation mode one: combine Figure 1-Figure 5 Describe this embodiment, the wind-heated antifreeze solar heat collector system of this embodiment includes a solar heat collector 2, a first circulating water pump 4, a heat user 5, a first check valve 7, an electric shut-off valve 13, a circulating working fluid The outflow pipe 20 and the circulating working medium inflow pipe 21, the outflow end of the heat user 5 communicates with the solar collector 2 through the circulating working medium outflow pipe 20, the first check valve 7 is installed on the circulating working medium outflow pipe 20, and the heat user The inflow end of 5 communicates with the solar heat collector 2 through the circulating working medium inflow pipe 21, and the electric stop valve 13 and the first circulating water pump 4 are sequentially installed on the circulating working medium inflow pipe 21 along the flow direction of the circulating working medium. The solar collector sys...

specific Embodiment approach 2

[0009] Specific implementation mode two: combination Figure 1-Figure 3 Illustrate this embodiment, the antifreeze solar heat collector system of this embodiment is also increased with expansion water tank 3 and the 3rd communication pipe 27, described expansion water tank 3 communicates with circulating working fluid inflow pipe 21 through the 3rd communication pipe 27, and the The three-communication pipe 27 is located on the circulating working fluid inflow pipe 21 between the temperature sensor 9 and the electric shut-off valve 13 . Such setting plays the role of constant pressure supply. Other compositions and connections are the same as in the first embodiment.

[0010] Normal mode of operation of the present invention (see figure 2 ): At this time, the temperature of the circulating working fluid in the solar collector system is higher than its freezing point, and the electric shut-off valve 13 remains normally open because the system does not need antifreeze at this...

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Abstract

The invention discloses an air heated anti-freezing solar energy collector system, relating to an anti-freezing solar energy collector system. The system aims at the problems that water is remained extremely easily in an exhaust and evacuation system to cause the frost cracking of valves and pipelines, relatively low temperature makes a circulating working medium solidified to cause the frost cracking of the pipelines and the antifreeze liquid system has large initial cost and easily causes environment pollution. A temperature sensor is mounted on a circulating working medium inlet pipe between an electric disconnecting valve and a solar energy collector; the upper end of a first communicating pipe is communicated with the circulating working medium inlet pipe; the lower end of the first communicating pipe is communicated with the inlet end of a wind power heater; the upper end of a second communicating pipe is communicated with a circulating working medium outlet pipe; the lower end of the second communicating pipe is communicated with the outlet end of the wind power heater; and a second check valve and a second circulating water pump are mounted on the second communicating pipealong the flow direction of the circulating working medium in sequence. By the invention, the initial cost of the collector anti-freezing system is decreased, and the problems of pollution and the frost cracking of the pipelines and the valves are avoided.

Description

technical field [0001] The invention relates to an antifreeze solar heat collector system. Background technique [0002] Due to the low outdoor temperature in winter in some areas of our country, when using solar energy, the problem of antifreezing of solar collectors must be considered. In the antifreeze design of solar collectors, national standards generally recommend emptying systems, drainage systems, antifreeze systems and circulating antifreeze systems. Due to improper installation and equipment problems, the drainage and emptying system can easily cause residual water in the system, resulting in cracking of valves and pipelines, affecting the safe operation of the system. The antifreeze system, especially the high-concentration antifreeze system, has a relatively large initial investment, and its price is about 300 to 400 yuan per square meter of solar collectors, and because the solar collectors are located outdoors, they are easily affected by external forces and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24J2/00F24J2/46F24J3/00
CPCY02E10/40
Inventor 姜益强姚杨宋孟杰董建锴高强王洪磊
Owner HARBIN INST OF TECH
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