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Device and method for biological safety detection, control and alarm

A biosafety and detection device technology, applied to measuring devices, instruments, etc., can solve problems such as low wind speed, weak negative pressure that cannot be automatically compensated and controlled, HEPA failure, damage that cannot be accurately reported, and biological safety hazards, etc., to achieve Avoid the effects of overdue service

Active Publication Date: 2009-08-12
上海智城分析仪器制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in these products widely used at present, there are hidden dangers in biosafety to varying degrees.
The existing ultra-clean workbenches and biological safety cabinets are not ideally designed for detection, control, and alarm devices and methods. During use, it is difficult to accurately detect the failure or damage of HEPA, or it cannot accurately alarm the failure or damage of HEPA. , or cannot automatically compensate and control low wind speed and weak negative pressure

Method used

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  • Device and method for biological safety detection, control and alarm
  • Device and method for biological safety detection, control and alarm
  • Device and method for biological safety detection, control and alarm

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Embodiment

[0021] Such as figure 1 As shown, it is a device block diagram of a specific embodiment of the present invention, including: thermal bulb type wind speed sensor, silicon resistance micro pressure difference sensor, hot bulb type heat balance type breeze wind speed transmitter, silicon resistance balance type micro pressure difference transmitter Devices, MPU data processors, displays, alarms, fans. Among them: 1 is a thermal bulb type wind speed sensor, which can measure the wind speed of the breeze downstream of the high-efficiency filter (HEPA) 9, and convert it into an electrical signal output; The electrical signal input by type wind speed sensor 1 is amplified and processed and output; 3 is a silicon resistance micro-pressure difference sensor, which can measure the wind pressure upstream of the high-efficiency filter (HEPA) 9, and convert the measured wind pressure value to the atmospheric pressure value. 4 is the silicon resistance balance micro-pressure differential t...

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Abstract

The invention discloses a biosecurity detecting, controlling and warning device and method, which comprises a shell forming air passage, at least a filter, an air inlet and an air outlet. The invention also comprises: at least a wind speed sensor, at least a pressure difference sensor, at least a wind speed transducer, at least a pressure difference transducer, a data processor, a monitor, a warner and a blower. The filter is a high-efficiency filter, the wind speed sensor is a hot-bulb wind speed sensor, the pressure difference sensor is sensistor micropressure difference sensor, the wind speed transducer is a hot-bulb balanced breeze speed transducer, the pressure difference is sensistor resistivity balanced micropressure transducer and the data processor is CPU or MPU data processor. The method can be used on the above device. The invention can accurately detect the failure, damage of the filter (HEPA or ULPA) and accurately alarm, which can also conduct automatic supplementing and controlling.

Description

technical field [0001] The invention relates to biosafety detection technology, in particular to a detection device and a detection method for a filter in a biosafety device. Background technique [0002] At present, with the development of modern biotechnology, the issue of biosafety has attracted great attention of scientific and technological workers in the biosphere of various countries. Laminar flow hoods, ultra-clean benches, biological safety cabinets, etc. contain various high-efficiency filters (referred to as: HEPA—High-efficiency particulate air filter, high-efficiency particulate air filter or ULPA—ultra low particulate air filter ultra-low permeability air filter )'s biological purification and biological safety protection products are all important laboratory equipment necessary for biotechnology research. However, in these products widely used at present, there are hidden dangers in biosafety to varying degrees. The existing ultra-clean workbenches and biolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/00G01D21/02
Inventor 沈水兴唐新南
Owner 上海智城分析仪器制造有限公司
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