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Coil integrated solar dryer with auxiliary heating

A technology of auxiliary heating and solar energy, applied in solar thermal power generation, solar thermal device, dry gas arrangement, etc., can solve the problems of high cost, low utilization rate of solar energy, and decreased product quality.

Inactive Publication Date: 2012-08-01
ZHENJIANG XINMENGXI ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of crop drying, the common drying heat sources are mostly coal or oil heating, and the temperature of the hot air is around 200°C, which will easily lead to a decline in product quality
[0003] At present, there are many patents on solar dryers, but due to the low utilization rate of solar energy and high cost, it has yet to be promoted.

Method used

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  • Coil integrated solar dryer with auxiliary heating
  • Coil integrated solar dryer with auxiliary heating
  • Coil integrated solar dryer with auxiliary heating

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Effect test

Embodiment Construction

[0013] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] The device uses the coiled solar air heat collector 7 as the main heat source, and the heating furnace 8 as the auxiliary heat source. When the light is sufficient, the hot air is extracted from the coil type solar air heat collector 7 after the blower fan 9 is started and sent into the drying bin to dry the goods. The outside air enters the serpentine elbow 5 from the air inlet 1 on the upper end of the serpentine solar air heat collector 7, and after fully exchanging heat with the serpentine elbow 5, finally enters the fan 9 from the air outlet 2 of the heat collector through the ventilation duct. When the light is insufficient or at night, the heating furnace 8 can burn fuels such as wood or coal to heat the air. External air enters the heating chamber 17 from the heating furnace air inlet 16 to absorb heat, and enters the fan 9 from the h...

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Abstract

The invention discloses a coil integrated solar dryer with auxiliary heating, which comprises a coil type solar air heat collector, a heating furnace, a fan, pipelines and a drying bin. A heat collecting plate of the heat collector is a metal plate with the sunward side plated with selective absorbing coating, a coil is welded on the back of the heat collecting plate of the heat collector, a porous sieve of the drying bin is inclined by about 20 degrees, and the heating furnace utilizes crop straws as fuel. The whole solar dryer is closely integrated, and a drying space is enclosed by the air heat collector and the drying bin together. The drying temperature of the solar dryer is about 50 DEG C, so that the quality of dried products is guaranteed. The solar dryer is compact in structural design, high in heat efficiency and applicable to crop drying amount of single rural families.

Description

1. Technical field [0001] The invention relates to solar heat utilization technology and crop drying technology, in particular to a solar dryer that integrates a coiled solar air heat collector and a drying chamber, uses a fan to actively supply air, and uses a heating furnace as an auxiliary heat source. 2. Background technology [0002] In the field of crop drying, most common drying heat sources are coal or oil heating, and the temperature of the hot air is around 200°C, which may easily lead to a decline in product quality. [0003] There are many patents about solar dryers at present, but due to reasons such as low utilization rate of solar energy and high cost, they still need to be popularized. A few existing related patents are listed below: [0004] The patent "rapid high-temperature solar dryer" (application number: 200620057287.2) proposes a solar dryer, the heat collecting part of which is a heat collecting plate, the air flows through the channel between the pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B21/00F24J2/46F24J2/50
CPCY02B10/20Y02E10/40
Inventor 王金平
Owner ZHENJIANG XINMENGXI ENERGY TECH
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