Steam blow off equipment of pressure cooker

Abstract

A steam discharging structure for pressure cooker is composed of upper and lower installing plates, elastic element and diaphragm of conic steam discharging hole. Its advantages are less generation of scale, and smooth steam discharge without edddy.

Description

technical field [0001] The invention relates to a pressure cooker, in particular to a steam discharge device for discharging steam from the pressure cooker. Background technique [0002] Usually, pressure cooker is divided into the pressure cooker that adopts gas furnace etc. as heating source to cook and the electric pressure cooker that adopts electric power as heating source to cook. [0003] The electric pressure cooker maintains a high-pressure state inside when cooking, and uses a heating temperature higher than normal pressure to cook, so that the cooking can be completed quickly. [0004] The steam discharge device of the above-mentioned electric pressure cooker is under the control of a microcomputer (not shown in the figure), so that the steam pressure in the pot is maintained in an appropriate range. [0005] Hereinafter, the conventional steam discharge structure will be described in detail with reference to the drawings. [0006] Such as Figure 1 to Figure 3 ...

AI Technical Summary

Problems solved by technology

[0018] However, in the above-mentioned existing steam discharge device, the pressure control valve 20 adopts the form of closing the first steam discharge hole 12a when the first diaphragm 23 is in surface contact with the first boss 12d. Can cause poor steam discharge

[0019] That is, when the discharged steam rises vertically and collides with the bottom surface of the first diaphragm 23, a steam vortex as shown in the figure will be generated. Due to the generation of the vortex, the steam may not be completely discharged under normal pressure.

[0020] The steam discharged through the first steam discharge hole 12a may contain liquid foreign matter, and since the foreign matter may adhere to the contact surface between the first diaphragm 23 and the first boss 12d, the sealing cannot be performed.

[0021] That is, when fouling occurs on the top of the first boss 12d, tiny gaps will be produced, so it is impossible to maintain a constant pressure in the pot.

[0022] Especially when the contact area between the first diaphragm 23 and the first boss 12d is large, its sealing performance will not only decrease faster, but also the first diaphragm 23 may completely stick to the first boss due to fouling of foreign matter. On the platform 12d, the first steam discharge hole 12a is completely closed, so that the steam cannot be normally discharged when the pressure needs to be reduced

[0023] In addition, in the steam discharged through the first steam discharge hole 12a, the liquid foreign matter cannot be discharged through the steam discharge pipe 50, so that fouling occurs at the bottom of the passage.

Images