A closed self-locking cleaning device for tanks

Abstract

The invention relates to a closed self-locking cleaning device of a tank, comprising a rigid section which is divided into at least two sections, and an expansion section which is arranged between an adjacent section and the rigid section; the bottom end of the rigid section is adapted to and connected with the wall of the tank in a closed way; the top end of the rigid section is provided with a compression cover; a steam inlet pipe which is connected inside the tank and a sewage pipe which is connected to the bottom of the tank are arranged on the compression cover; and the inner side of the rigid section is provided with at least one group of self-locking mechanism which is buckled and matched with the corner of the inner side of the tank wall. The closed self-locking cleaning device of the tank adopts a positive pressure tank cleaning technology, fully utilizes the steam in the tank while ensuring that the pressure in the tank meets the conditions of equipment safety requirements, so that the steam heat utilization rate is improved, the air pollution is reduced and a certain materials can be recovered, and consequently, the closed self-locking cleaning device of the tank has the advantages of environmental protection, energy saving, high efficiency, low cost and the like.

Description

technical field [0001] The invention relates to a closed car washing equipment for railway tank cars, in particular to a closed self-locking cleaning device for a tank. Background technique [0002] In rail freight or road freight, tank cars used for transport often require tank cleaning operations. At present, the cleaning tank has been using the open steam washing technology. Although this technology is widely used, because it adopts the open steam washing method and the tank mouth is open, so in the process of car washing, most of the steam will flow out of the tank mouth immediately after a certain small cycle in the tank. Volatile, resulting in low steam utilization. This not only wastes a lot of cleaning steam, but also it is difficult to steam clean some positions in the tank. [0003] In summary, the existing open tank cleaning device and technology mainly have the following technical defects: [0004] 1) The steam utilization rate is low, the waste of steam is l...

AI Technical Summary

Problems solved by technology

[0004] 1) The steam utilization rate is low, the waste of steam is large, and the cost of car washing is high;

[0005] 2) The temperature in the tank generally can only reach about 80-90°C, which makes it difficult to cook some parts in the tank;

[0006] 3) The cooking time is long, the efficiency of car washing is low, and the work intensity of workers is relatively high;

[0007] 4) The residual items (oil, chemicals, etc.) in the tank volatilize with the steam from the tank mouth to the atmosphere, causing serious air pollution, poor working environment on site, and affecting the safety of operators;

[0008] 5) When washing the tank, the steam noise is loud

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