Device for reducing noise of nuclear biochemical pollution decontamination trailer

Abstract

The invention belongs to the field of nuclear biochemical pollution decontamination and relates to a noise reduction device, in particular to a device for reducing noise of a nuclear biochemical pollution decontamination trailer. The device comprises a water tank, a chemicals box, a precise filter, a chemicals output pump, a flow meter, a chemicals pump, a chemicals pump circulation pipeline a, a chemicals pump circulation pipeline b, a chemicals pressure control valve, a decontamination chemicals port, a clean water pump, a clean water pump circulation pipeline a, a clean water pump circulation pipeline b, a clean water pressure control valve, decontamination clean water port and a pre-decontamination clean water port; an included angle of 50 degrees is formed between the chemicals pump circulation pipeline a and the chemicals pump circulation pipeline b, so that a chemicals pump motor is prevented from running away; and an included angle of 50 degrees is formed between the clean water pump circulation pipeline a and the clean water pump circulation pipeline b, and the other end of the clean water pump circulation pipeline b is connected with a clean water pump input hole, so that a clean water pump motor is prevented from running away, and the device has the advantages of controlling water pressure feedback and stabilizing a control system.

Description

Technical field [0001] The invention belongs to the field of nuclear, biological and chemical pollution decontamination, and relates to a noise reduction device, in particular to a noise reduction device for nuclear, biological and chemical pollution decontamination trailers. Background technique [0002] In the existing technology, the decontamination appliance adopts the medicine pump and the clean water pump circulation pipeline, but when the clean water pump and the medicine pump are unmanned in the decontamination position, the water pump is still running, and the clean water is in the water tank outlet and the water pump. There is a small circulation between the inlet and the overflow pipe of the pressure regulating valve, which will cause the water temperature in the pump cavity to rise sharply in a short time, and the pump body will become hot; when the decontamination position is used by someone, the pressure controller will start frequently in a short time. The pressure...

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, the chemical pump and the clean water pump circulation pipeline are suitable for the decontamination equipment, but when the clean water pump and the chemical pump are not used in the decontamination position, the water pump is still running, and the clean water is connected to the water pump at the positive tee at the outlet of the water tank. A small cycle is formed between the inlet and the overflow pipe of the pressure regulating valve, causing the water temperature in the pump chamber to rise sharply in a short time, and the pump body becomes hot; at this time, when the decontamination station is used by someone, the pressure controller will be activated frequently in a short time. The pressure is unstable, the response time of the frequency converter lags behind the pressure change, the feedback signal has the illusion that the motor speed is not enough, which makes the motor speed abnormally high, the speeding problem of the motor with the pump, and the unstable interference problem of the water pressure feedback to the control system

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