Liquid storage container external pipe without valve emptying device

Abstract

A valve-free drainer for external pipe of liquid reservoir is mainly by connecting an airbag pipe disposed in the liquid reservoir, a tee disposed outside the liquid reservoir and an air pump; the airbag pipe is composed of an airbag and a composite pipe; a liquid outlet of the composite pipe is located within a liquid access of the liquid reservoir and matches with the same; a middle pass of the tee is communicated with the liquid outlet of the composite pipe; an air pipe is disposed between the airbag and the air pump. Different from the traditional drainage manner where a valve is disposed in the liquid access of the liquid reservoir, the valve-free drainer allows the liquid to access the liquid access of the liquid reservoir through the airbag pipe in an unblocked manner; normal accessing liquid flow and normal flowing speed of the liquid reservoir are both unaffected; the airbag pipe is located within the liquid reservoir, thus no faults such as freeze-blocking occurs in cold winter; the valve-free drainer is simple in structure, the air pump inflates the airbag during draining, a liquid inlet of the combined pipe rises out of the liquid with the airbag, and the composite pipe is cut off and drained immediately; when liquid normally accesses the liquid reservoir, re-operating the drainer is not required.

Description

technical field [0001] The invention relates to the emptying technology of the external pipeline of the liquid storage container, in particular to a valveless emptying device for the external pipeline of the liquid storage container. Background technique [0002] In the petroleum, chemical, pharmaceutical and other production industries in the industrial field, most of them must be equipped with liquid storage containers. In addition, in related civil fields, such as water storage tanks of high-rise buildings and water storage tanks of solar water heaters, etc., all belong to liquid storage containers of different shapes and sizes. Generally, the liquid storage container is provided with an external pipe for the liquid medium in the container to flow out. However, during the freezing period in cold weather, the liquid that has not been emptied in the external pipe of the liquid storage container will freeze and cause freezing blockage. Freezing blockage not only prevents t...

AI Technical Summary

Problems solved by technology

This type of structure has the following deficiencies: 1. A valve is set in the narrow liquid outlet of the liquid storage container, which greatly reduces the original cross section of the liquid outlet, and reduces the normal liquid flow and flow rate of the liquid storage container. flow rate; 2. The set valve is located in a special position at the inner and outer boundaries of the liquid storage container, and the heat preservation measures are not easy to put in place. When severe winter comes, the piston and valve body may still be blocked by freezing, which hinders the use of the emptying valve: 3. The emptying method that the piston blocks the liquid outlet of the liquid storage container will gradually reduce the sealing performance of the piston after long-term use, and finally directly affect the use effect of the emptying valve; 4. The structure of the existing emptying valve is still relatively complicated

Images