Manhole/hand well forced ventilation cloth curtain and using method thereof

Abstract

The invention discloses a manhole / hand well forced ventilation cloth curtain and a using method thereof. The ventilation cloth curtain consists of frame rods (1), panel buckles (2), vertical rods (3), prefabricated fireproof cloth (4), balance weight rods (5), fixing belts (6), supporting feet (7) and transverse rods (8). The frame rods (1), the prefabricated fireproof cloth (4), the balance weight rods (5) and the fixing belts (6) form a cloth curtain, and the vertical rods (3), the supporting feet (7) and the transverse rods (8) form a support frame to achieve supporting and fixing effects. The panel buckle (2) is fixed on the frame rods (1). The positions, close to the middles, of the vertical rods (3) are punched, the frame rods (1) of the cloth curtain component are installed on the tops of the vertical rods (3) and the punched positions, and the prefabricated fireproof cloth (4) between the frame rods (1) forms a windward side. The supporting feet (7) are in a T shape, the vertical rods (3) are inserted into the supporting feet from top to bottom, the transverse rods (8) penetrate from the bottoms of the supporting feet, and the effect of expanding the supporting range is achieved.

Description

technical field [0001] The invention relates to a man / hand well forced ventilation cloth curtain and a use method thereof, belonging to the technical field of machinery. Background technique [0002] With the development of urban communication construction, underground pipeline construction has gradually increased, and construction workers have been poisoned and suffocated while working underground. When working in pipeline trenches and underground wells, the most common toxic gases underground are carbon monoxide (gas) and hydrogen sulfide, and ventilation should be carried out before going down the well. At present, the ventilation method before going down the well is to use ventilation cloth curtains or exhaust fans. And the notice requires that the safety inspection must check the man / hand well forced ventilation device. [0003] Communication pipes and pipes are mostly built outdoors and the site is well ventilated. The general human / handwell ventilation mainly relie...

AI Technical Summary

Problems solved by technology

The natural wind can only blow the gas at the edge of the wellhead, and cannot blow the gas under the man / hand well at all

Ventilation tools on the market usually use electricity or manpower to ventilate. In the suburbs far away from the power supply and under the conditions that cannot provide enough personnel, the quantity of forced ventilation and energy consumption are not economical.

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