Steam generating device adopting compound parabolic concentrator (CPC) solar collector

Abstract

The invention discloses a steam generating device adopting a compound parabolic concentrator (CPC) solar collector. The steam generating device comprises a collector group and a steam generator. A medium input pipe opening and a medium output pipe opening of the collector are respectively connected with an input connecting box and an output connecting box pipeline. An electric heater is arranged in an energy storage box. Liquid pumps are respectively arranged on a medium input main pipeline and a medium input pipeline of a heat collection medium heat exchanger. The heat exchanger is a spiral coil pipe heat exchanger. A collecting lens of the collector is a rear surface mirror, and a light reflective membrane layer and a protective membrane layer are plated on the rear surface of a glass base and are compounded with the glass base into a whole in a bonding mode. The steam generating device is mainly characterized in that glass cover plates are respectively arranged on a groove opening of the groove type collecting lens and opening ends on two sides, and has the advantages of being reasonable in structure configuration, high in light reflective rate of the collecting lens, good in heat utilization effects, long in service life and the like.

Description

technical field [0001] The invention relates to a steam generating device using a CPC solar concentrating heat collector, which belongs to the field of solar heat utilization technical devices. Background technique [0002] The CPC in the present invention is an abbreviation of English Compound Parabolic Concentrator, which means a compound parabolic concentrator. It is the only high-efficiency concentrating solar collector that does not need to track the sun continuously. It only needs to adjust the inclination angle of the collector 2~4 times a year to obtain the maximum light collection ratio. [0003] And described steam generating device adopts CPC solar concentrating heat collector exactly, provides thermal energy and produces the steam generating device of steam. [0004] The steam generating device described above can be used in various applications such as steaming food (rice, steamed buns and dishes), boiling water, bathing, heating and cooling, etc. in industria...

AI Technical Summary

Problems solved by technology

[0007] However, looking at the above-mentioned patent (application) technology, there are still many structural deficiencies, the main ones are: first, the reflectivity of the concentrator (front surface mirror) is still low, so that its solar heat utilization rate is not high; Second, because the condenser (mirror) is a front surface mirror, the reflective film system arranged on the front surface of the condenser faces the harsh environment of nature, which is not only extremely easy to be damaged and causes a decrease in reflectivity, but also affects its normal service life. The third is that in the flow circuit of the heat collecting medium of the overall system, the output port and the input port of the heat collecting medium metal tube of the heat collector which are arranged in the vacuum glass tube in a U-shaped structure are respectively directly It will undoubtedly increase the resistance of the collector’s medium output and medium input, and will also form turbulent flow of the heat-collecting medium, so that the operation of the heat-collecting medium The flow is not smooth, which affects the heat collection effect of the heat collector and the heat exchange effect of the heat collection medium heat exchanger; especially the insufficient configuration of the circulating pump will also affect the heat collection effect and heat exchange effect, so that the steam generator The steam production is unsatisfactory; Fourth, although there is a medium storage tank in the medium flow circuit, the function of the storage tank is very simple, especially it does not have the function of electric heating, so it is not suitable for steam production in rainy weather or at night work, and bring trouble to the entity unit of the present invention; the 5th, although its integral structure can finish steam production work, it lacks automatic control device, thereby on-the-spot operation seems very cumbersome

Images