Locking device for positive-pressure washing equipment of tank

Abstract

The invention relates to a locking device for positive-pressure washing equipment of a tank, which comprises a pressing cover connected with an opening of the tank in a matching way by sealing, wherein a steam inlet pipe communicated to the inside of the tank and a blow-off pipe communicated to the bottom of the tank are installed on the pressing cover, a locking connection rod penetrating through the pressing cover, a fixing upright post and a movable baffle plate connected with the fixing upright post by a pivot shaft are arranged below the pressing cover, a locking handle matched with the movable baffle plate by the locking connection rod is arranged above the pressing cover, and the movable baffle plate is connected with the corner position of the inner side of the tank in a matching way by sealing at a locking position. After the inside of the tank is washed by positive-pressure steam through the steam inlet pipe according to the locking device for the positive-pressure washing equipment of the tank, generated waste liquid or waste gas is discharged out of the tank through the blow-off pipe, the steam is fully utilized as far as possible in the tank under the condition of ensuring that the pressure in the tank conforms to the safety requirement of the equipment, the use rate of the heat energy of the steam is enhanced, the atmospheric pollution is reduced, and a certain material can also be recovered.

Description

technical field [0001] The invention relates to an airtight car washing device for a freight tanker, in particular to a locking device for a positive pressure 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 w...

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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