A solar rice steaming system

Abstract

A solar food steaming system comprises a solar collector array, a water inlet pipe, a water return pipe, a heat reservoir, a steam pipe, a hot water pipe, an electric-steam steamer and a controller, wherein two ends of the solar collector array are connected with the bottom and the top of the heat reservoir respectively through the water inlet pipe and the water return pipe, a circulating pump is arranged on the water inlet pipe, and a circulating loop is formed; a first temperature sensor is arranged at the outlet end of the solar collector array, and a first electric heater and a second temperature sensor are arranged in the heat reservoir; and the heat reservoir is connected with the electric-steam steamer through the steam pipe and is connected with a water inlet in the bottom of the electric-steam steamer through the hot water pipe, and a solenoid valve is arranged on the hot water pipe. When food is needed to be steamed, a pressure regulating valve is switched on to realize vacuum flashing of saturated water in the heat reservoir, and produced low-pressure steam is input into the electric-steam steamer for steaming food. When the water temperature of the heat reservoir is low, the first electric heater or the solenoid valve is switched on and a second electric heater is switched on to produce steam for steaming the food.

Description

technical field [0001] The invention relates to a solar energy utilization system, in particular to a solar energy rice steaming system. Background technique [0002] For public canteens, due to the large number of diners, they usually consume a large amount of non-renewable energy to produce steam or hot water for steaming rice, boiling water and disinfecting tableware, etc. The large consumption of non-renewable energy will inevitably cause a series of energy shortages and environmental pollution problems. The development and utilization of solar energy is one of the important ways to realize the diversification of energy supply, energy saving and emission reduction, so the application of solar steam system in the field of kitchen has appeared, and it is currently in the stage of technological application development, and there are still some shortcomings: the existing solar steam system Using heat transfer oil as a heat transfer and heat storage medium, heat transfer oil ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the current solar steam system using heat transfer oil as the working medium has a large food safety risk in the kitchen field, and at the same time solve the problems of low heat exchange efficiency, complex structure and high manufacturing cost of the system

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