Device for automatically and repeatedly adding water on basis of Venturi effect

Abstract

The invention relates to a device for automatically and repeatedly adding water on the basis of the Venturi effect. The device is characterized in that a pot cover unit is additionally arranged on a pot for boiling rice dumplings, and when the rice dumplings are boiled, the pot cover unit can automatically add normal-temperature water into boiled water inside the pot. The pot cover unit comprises a pot cover, a water container, stand columns, a plunger, a plunger chamber, a spring, a flow guiding pipe, a pneumatic pipe, a water storage basin, three ventilation pipes, a sucking pipe and a Venturi pipe. When steam inside the pot is rapidly ejected through the Venturi pipe, negative pressure is formed inside the sucking pipe, and the plunger overcomes elasticity of the spring and moves to the sucking pipe; at the moment, water inside the water container passes through a water inlet, the plunger chamber, the flow guiding pipe, the pneumatic pipe and a spiral throttling pipe and then flows into the pot. Boiling is stopped inside the pot, the negative pressure inside the sucking pipe disappears, and the spring pushes a needle type plug on the plunger to plug the water inlet; and then, the device for automatically and repeatedly adding the water repeats the operation process in the automatic water adding stage. The device can automatically and repeatedly add the normal-temperature water into the pot in an unpowered manner, and therefore the outer layers of the rice dumplings will not fracture while being overdone.

Description

technical field [0001] The invention relates to the field of kitchen utensils, in particular to a cooker for cooking glutinous rice balls. Background technique [0002] Tangyuan is a traditional Chinese food. The process of cooking glutinous rice balls is as follows: put the raw glutinous rice balls into the boiling water in the pot, and stir the glutinous rice balls in the water with a spoon to prevent the glutinous rice balls from sticking to the bottom of the pot. Bring the water to a boil (usually at this time the glutinous rice balls float in the water), add some normal temperature water (commonly known as cold water) to the boiling water, and continue cooking the glutinous rice balls. After that, when the water boils, add room temperature water. In this way, add room temperature water three times in total. After adding room temperature water for the third time, the glutinous rice balls will be cooked until the water in the pot boils, and then they can be eaten out of ...

AI Technical Summary

Problems solved by technology

[0003] It takes about 10 to 15 minutes to cook glutinous rice balls. People who cook glutinous rice balls often feel that waiting by the pot is a waste of time when the glutinous rice balls are cooking in the pot, and they always go to do other small things. In this way, they often forget In order to add normal temperature water to the boiling water on time, the outer layer of the glutinous rice balls will be overcooked and cracked, and the filling cores in the glutinous rice balls, especially the sesame filling cores will spread out, resulting in a messy pot of glutinous rice balls and a waste of ingredients

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