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Composite drying system for gradient utilization of solar energy

A drying system and composite technology, applied in the field of composite drying system, can solve the problem of high energy consumption of the drying system, achieve the effects of high energy quality, reduce energy consumption, and avoid electric energy consumption

Inactive Publication Date: 2020-12-18
浙大宁波理工学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a combined dehumidification and drying system that uses solar energy and solar energy to drive jet refrigeration, realizes cascade utilization of energy while reducing energy consumption of the dehumidification and drying system, is used to solve the problem of high energy consumption in the existing drying system, and realizes the drying system Wide range of applications with excellent performance

Method used

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  • Composite drying system for gradient utilization of solar energy
  • Composite drying system for gradient utilization of solar energy

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1As shown, a composite drying system for cascaded utilization of solar energy in this embodiment includes: an ejector refrigeration system, a solar heat collection circulation system and an air circulation system.

[0045] The ejector refrigeration system includes the generator 1, the ejector 2, the first heater 3, the dehumidifier 4, the first circulation pump 5 and the heat recovery device 6 connected by pipelines to form a circulation loop, and the system pipeline is built with The refrigerant. A throttling valve 7 is arranged on the pipeline between the first heater 3 and the dehumidifier 4 .

[0046] The solar heat collection circulation system includes a solar heat collector 8, a first heating coil 9, a second heater 10, a heat recovery coil 11 and a second circulation pump 12 connected in sequence through pipelines, thereby forming a circulation loop, which The system pipeline is built with heat transfer medium.

[0047] Wherein the first heatin...

Embodiment 2

[0058] Such as figure 2 As shown, on the basis of Embodiment 1, an air-cooled heat exchanger 16 is added on the pipeline between the injector 2 and the first heater 3 . The temperature adjustment of the first heater 3 is realized by controlling the air-cooled heat exchanger 16 to release part of the heat. The opening or frequency adjustment of the air-cooled heat exchanger 16 is determined according to the drying conditions of the dry material.

[0059] The invention aims to use solar energy for dehumidification and drying, realize multi-level utilization of solar energy, reduce energy consumption of the dehumidification and drying system, and improve the working conditions of jet refrigeration, so that the jet refrigeration system works in a higher efficiency area, which makes up for the traditional The operating disadvantages of the solar jet refrigeration system, and the addition of a heat recovery device to the system realizes the maximization of energy utilization. Base...

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Abstract

The invention discloses a composite drying system for gradient utilization of solar energy, and belongs to the technical field of dehumidification and drying. The combined type drying system comprisesan injection type refrigerating system, a solar heat collection circulating system and an air circulating system, wherein the injection type refrigerating system comprises a generator, an injector, afirst heater and a dehumidifier, the solar heat collection circulating system comprises a solar heat collector, a first heating coil and a second heater, the first heating coil exchanges heat with the generator to drive the injection type refrigerating system to work, and gas to be treated is introduced into an air treatment chamber from a drying chamber, sequentially treated by the dehumidifier,the first heater and the second heater to obtain dry gas, and finally enters the drying chamber to be used for drying materials. According to the composite drying system, solar energy is preferentially utilized to drive the injection type refrigerating system, the performance of injection type refrigeration is ensured while dehumidification and heating are carried out at the same time, waste heatafter heat exchange with the generator is used for second-stage heating of the air side, and the principle of energy matching and full utilization is met.

Description

technical field [0001] The invention belongs to the technical field of dehumidification and drying, and in particular relates to a composite drying system for cascaded utilization of solar energy. Background technique [0002] Food drying is mainly to remove the moisture in the food, so as to facilitate the storage of food and prolong the storage time of food. Exposing wet materials to the sun to remove moisture is the most traditional drying method in daily life. However, in the southern region, due to the high humidity in the air, the drying cycle is extremely long, and the quality of the dried materials is difficult to guarantee. Moreover, for foods such as raisins and dried wolfberries, it is not suitable to be exposed to the sun to remove water. In order not to destroy their original nutrients and taste, they need to be dried in the shade. However, drying in the shade room still has problems such as long cycle time and poor quality. . [0003] With the development of ...

Claims

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Application Information

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IPC IPC(8): F26B21/08F24S20/00F24S60/00F25B9/08F25B27/00F26B21/00F26B21/02
CPCF26B21/08F26B21/02F26B21/001F25B9/08F25B27/002F24S60/00F24S20/00Y02E10/40Y02P70/10
Inventor 高能郝新月陈光明吴勇平王学会宣永梅
Owner 浙大宁波理工学院