Laboratory hydrogen sulfide generating device

The utility model discloses a hydrogen sulfide generating device for a laboratory. The hydrogen sulfide generating device comprises a three-neck flask 1, a constant-pressure titration funnel 2, a one-way valve 3, a negative pressure meter 4, a first stop valve 5, a second stop valve 8, a third stop valve 14, a vacuum pump 6, an aluminum gas bottle 7, a first rubber plug 9, a second rubber plug 10, a flow control valve 11, a gas diverter valve 12 and a tail gas absorption bottle 13. Solid sulfide is fed from a left opening of the three-neck flask 1, acid liquor flows in from a middle opening of the three-neck flask 1 through the constant-pressure titration funnel 2, and generated hydrogen sulfide gas flows out from a right opening of the three-neck flask 1. The utility model provides a laboratory hydrogen sulfide generating device, which realizes safe, efficient and high-purity preparation of hydrogen sulfide in a laboratory. 本实用新型公开了一种实验室硫化氢发生装置，该装置包括三口烧瓶1、恒压滴定漏斗2、单向阀3、负压表4、截止阀一5、截止阀二8和截止阀三14、真空泵6、铝气瓶7、橡皮塞一9和