A double-layer sleeve used for high-level protection laboratories to discharge live toxic waste water

Abstract

The invention discloses a double-layer sleeve used for discharging active toxic waste water in a high-level protection laboratory, which includes a discharge inner tube, an outer sleeve, a plurality of inner tube support frames and short patch tubes, and the discharge inner tube is located outside In the layer casing, each inner tube support frame is located between the discharge inner tube and the outer layer casing, and each inner tube support frame is distributed along the axial direction of the discharge inner tube, and each inner tube support frame can be arranged along the discharge inner tube. Radial free expansion and contraction, the fixed part of each inner tube support frame is connected with the discharge inner tube, the telescopic part of each inner tube support body is in contact with the outer casing, and multiple patch short tubes are sequentially fitted along the axial direction of the outer casing On the outer casing, a first sealing ring is provided between each patch short pipe and the outer casing, an injection pipe is provided at the entrance of the outer casing, and a discharge pipe is provided at the outlet of the outer casing, and the injection Seals are provided on the pipe inlet and the discharge pipe outlet, respectively. The double-layer casing has the advantages of simple structure, safety and reliability, and convenient construction.

Description

technical field [0001] The invention relates to the technical field of high-level airtight laboratory devices, in particular to a double-layer sleeve used for high-level protection laboratories to discharge active and toxic waste water. Background technique [0002] The high-level biosafety protection laboratory uses fully isolated physical protection technology and protective barriers, and through corresponding strict management measures, to avoid the escape of highly pathogenic risk biological factors into the environment and cause serious biological risks. According to the degree of biological risk hazard, pathogenic microorganisms are divided into four levels. The first category of pathogenic microorganisms has nothing to do with human health and human diseases, and is not harmful to humans; the second category of pathogenic microorganisms can cause harm to human health, but the degree of harm is very small, and there are very effective prevention and treatment methods; ...

AI Technical Summary

Problems solved by technology

[0004] First, there is no mature dual-layer bio-risk live toxic wastewater discharge and treatment pipeline technology for high-level biosafety protection laboratories in China.

[0005] Second, at present, the double-layer living and toxic waste water casing in foreign countries is mainly welded, which has very high requirements for the welding process, and the welding construction is often restricted by the layout of the pipeline.

[0006] Third, the internal support of the known foreign double-layer living and toxic wastewater pipeline technology is fixed support, the adjustment and movement ability is poor, the fit between the support and the inner and outer pipes is not enough, and it is easy to vibrate due to equipment operation or other factors, resulting in Leakage hazard at welds or joints

[0007] Fourth, there is no mature technical strategy and implementation plan for double-layer pipeline maintenance, disinfection and maintenance follow-up treatment

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