Three-proofing filtration purification and positive pressure control device

Abstract

The invention discloses a three-proofing filtration purification and positive pressure control device, and relates to the technical field of safety protection. The three-proofing filtration purification and positive pressure control device comprises a main frame body, a canister, an air filter and a positive pressure control mechanism, wherein the positive pressure control mechanism comprises a fan, a controller, a human-computer interface, a first differential pressure transducer and a second differential pressure transducer; the main frame body comprises a bottom plate, a support and a box body; an outlet of the air filter communicates with an inlet of the fan; an outlet of the fan communicates with an inlet of the canister; and an air supply outlet of the canister is used for communicating with a controlled cabin; a positive pressure measuring opening of the first pressure difference transducer is used for being connected with internal air of the controlled cabin, and a negative pressure measuring opening of the first pressure difference transducer is used for being connected with the external environment of the controlled cabin; and a positive pressure measuring opening of the second pressure difference transducer is used for being connected with the external environment of the controlled cabin, and a negative pressure measuring port of the second differential pressure transducer is arranged at an outlet of the air filter. The device is convenient to install and use, dust blockage can be avoided, and the filtering capacity of bioaerosol is enhanced.

Description

technical field [0001] The invention relates to the technical field of safety protection, in particular to a three-proof filter purification and positive pressure control device. Background technique [0002] In complex systems such as tent hospitals or shelter hospitals, the cabin where the service operation command post is located is the core node. In order to enhance its survivability, it is designed as positive pressure isolation protection to protect internal workers from external pollution threats. The traditional implementation scheme uses a canister to achieve three-proof filtration. The canister, power unit, and control device are generally distributed, and the installation and use are more complicated, and the bioaerosol filtration capacity of the canister is relatively weak. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a three-proof filter purification and positive pressure control device, whic...

AI Technical Summary

Problems solved by technology

The traditional implementation scheme uses the canister to achieve three-proof filtration. The canister, the power unit, and the control device are generally distributed, and the installation and use are more complicated, and the bioaerosol filtration capacity of the canister is relatively weak.

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