故宫铜大缸又称“吉祥缸”，清朝时期规定为了防止“吉祥缸”内存水的干涸，内廷“吉祥缸”每日由关防衙门内管领率领苏拉（满语，指宫中的差役）近内添水；外朝“吉祥缸”，每日由宫中机桶处苏拉将缸水添足。总管内务府派司员4人负责管理，每5天检查一次缸内的储水情况。

The bronze vat of the imperial palace is also called "auspicious VAT". During the Qing Dynasty, in order to prevent the water from drying up, the "auspicious VAT" of the inner court was led by the leader in the Guanfang Yamen to fill the water in the near inner part of Sula (Manchu, referring to the errand in the palace); the "auspicious VAT" of the outer court was filled by Sula at the machine barrel of the palace every day. The office of internal affairs of the general manager shall assign 4 persons to be responsible for the management and check the water storage in the cylinder every 5 days.

在冬季，为了防止“吉祥缸”的储水结冰，不仅仅要加上缸盖，还要进行“熏缸”的工作具体的做法是，在缸盖里面设有专门的“铁屉”可以贮存炭火；同时，每一口缸不是直接放置在地面上的，而是在缸的底部有弧形的石基垫底，其中有一块弧形石是可以活动的，这样方便在刚下置***炭，摆放铜缸的寓意和作用，将缸内已经***的冰块融化。这项差事一直是有内务府的“熟火处”根据季节气候寒暖变化来决定何时开始，直到一般到第二年的惊蛰过后才结束。

In winter, in order to prevent the water storage of "auspicious tank" from freezing, not only the cylinder head should be added, but also the work of "fumigation tank" should be carried out. The specific method is that a special "iron drawer" is set in the cylinder head to store carbon fire; at the same time, each cylinder is not directly placed on the ground, but at the bottom of the cylinder there is an arc-shaped stone base base, in which one arc-shaped stone is movable In this way, it is convenient to place the carbon under the cylinder and the implication and function of the copper cylinder to melt the ice in the cylinder. This job has always been a "fire department" of the house of internal affairs, which decides when to start according to the seasonal climate changes, until the next year's hibernation.

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HSBC copper foundry is a well-known Tang County copper sculpture handicraft company in Hebei copper sculpture. It is unique among many sculpture companies and sculpture factories to create high-quality copper sculptures for you.