Solar groove type and flat-plate type combine heat-collecting solution regeneration method, device thereof and applications

Abstract

The invention provides a solar energy groove and flat-plate combined heat-collecting solution regeneration method, a device thereof and application thereof. The method comprises the following steps: a solution I from a dehumidifier is pre-heated in a low-temperature sleeve heat exchanger and then delivered to a flat-plate heat-collecting regenerator while absorbing heat from solar radiation and heat generated during condensation of steam from a steam-liquid separator, so as to be regenerated in a non-boiling mode to obtain a solution II; and the obtained solution II is delivered to a high-temperature sleeve heat exchanger to be heated further, delivered to a groove heat collector to be regenerated in a boiling mode and finally delivered to the steam-liquid separator to obtain a solution III and water vapor by separation. The device consists of the low-temperature sleeve heat exchanger, the flat-plate heat-collecting regenerator, the high-temperature sleeve heat exchanger, the groove heat collector and the steam-liquid separator which are arranged sequentially along a solution delivery direction. The device is applicable to air condition dehumidification, steam-liquid separation or condensation drying and other fields. The device and the method realize boiling and non-boiling solution regeneration, greatly improve solution regeneration rate, ensure the condensation of regenerated solutions and improve the use rate of solar energy.

Description

technical field [0001] The invention relates to the technical field of solution dehumidification and air conditioning, in particular to a method for regenerating a solar trough-type and flat-plate combined heat-collecting solution, as well as its device and application. Background technique [0002] Solution regeneration equipment is an important part of solution dehumidification air conditioning system, its operation status, efficiency and initial investment will directly affect the performance and feasibility of the system. According to different regeneration methods, solution regeneration can be divided into air solution regeneration and boiling solution regeneration. The common air-type solution regeneration equipment is the packed spray tower and the solar panel heat collector regenerator. It requires a low heat source temperature and is an effective way to utilize low-grade energy. However, because of the low heat source temperature, the regenerated solution The conce...

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Problems solved by technology

The common air-type solution regeneration equipment is the packed spray tower and the solar panel heat collector regenerator. It requires a low heat source temperature and is an effective way to utilize low-grade energy. However, because of the low heat source temperature, the regenerated solution The concentration and regeneration efficiency are not high, and the outdoor air with high humidity is not conducive to the regeneration of its solution

The boiling solution regeneration is composed of two operations of heating the solution to boil and vaporize the water and continuously removing the vaporized water vapor. Among them, the typical one is to use a gas combustion furnace to generate double-effect or multi-effect solution regeneration and use a heat pump to efficiently recover the heat of water vapor. Boiling solution regeneration, this regeneration method uses a high heat source temperature, can recover heat multiple times, and realize multi-stage regeneration, so it can obtain higher regeneration concentration and regeneration efficiency, but its regeneration process and regeneration equipment are more complicated than air regeneration Many, and usually need to use high-quality driving energy such as natural gas, which greatly increases the cost of equipment

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