Clean biological safety cabinet control system
A biosafety cabinet and control system technology, applied in the field of experimental equipment, can solve problems such as neurotoxicity, dark spots, lymphocyte chromosomal lesions, etc.
Active Publication Date: 2015-05-20
SHANGHAI BOXUN MEDICAL BIOLOGICAL INSTR CORP
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In order to sterilize, a UV (ultraviolet) lamp 32 is installed in the working room, promptly utilizes the UV (ultraviolet) lamp to irradiate and kill organic compounds or fungi in the air, but the sterilization is not thorough. Oxygen becomes ozone. When the concentration of ozone in the air exceeds the standard, ozone is an invisible killer. It strongly stimulates the human respiratory tract, causing sore throat, chest tightness and cough, causing bronchitis and emphysema; causing neurotoxicity and dizziness. Headache, vision loss, memory loss; destructive effect on vitamin E in human skin, causing human skin to wrinkle and dark spots; also destroy human immune function, induce lymphocyte chromosomal lesions, accelerate aging, and cause pregnant women Therefore, the ozone discharged from the biological safety cabinet will cause secondary pollution to the air, and at the same time, the ozone will cause strong oxidation of some experimental materials
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] The present invention will be described in detail below with reference to the accompanying drawings, and the same reference numerals represent the same or similar components.
[0017] figure 2 It is a schematic diagram of the biological safety cabinet provided by the present invention. image 3 It is a schematic side view of the biological safety cabinet provided by the present invention. Such as figure 2 and 3 As shown, the biological safety cabinet includes a housing 1 arranged on a support 30, and the housing includes a front sealing plate 26 (a retractable glass door is adopted in the present invention), a front cover plate 25, a left wall, a right wall, a top wall and The bottom wall is provided with a diffuser plate 27 in the middle of the housing 1, the front cover plate 26, the upper half of the left wall, the upper half of the right wall, the top wall and the diffuser plate form an upper space, and the front seal plate 25 1. The lower part of the left wal...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a clean biological safety cabinet control system and belongs to the technical field of experiment equipment. A first ultraviolet lamp and a first photocatalyst layer are sequentially arranged at the air inlet of the cleaning room of a biological safety cabinet, a first ozonolysis layer, an air discharge filter and a second photocatalyst layer are sequentially arranged at an air outlet, a second ozonolysis layer, a main filter and a third photocatalyst layer are sequentially arranged between a work room and the cleaning room, the control system is provided with a first differential pressure sensor, two probes of the first differential pressure sensor are arranged in a negative pressure air channel and the cleaning room respectively, and an air pressure difference amplifier is used for amplifying the voltage signal output by the first differential pressure sensor; and an error amplifier amplifies the electric signal output by the differential pressure sensor, a proportion integrator integrates the error amplifier and provides the obtained integration to a variable-frequency speed regulator, and the variable-frequency speed regulator supplies a variable-frequency power supply to a fan according to an input signal in order to change the rotation speed of the fan. The control system can automatically adjust the air speed in the work room to homogenize the air speed.
Description
technical field [0001] The invention relates to a clean biological safety cabinet control system, in particular to a biological safety cabinet capable of purifying air and capable of automatic speed regulation, belonging to the technical field of experimental equipment. Background technique [0002] figure 1 It is a schematic side view of a biological safety cabinet in the prior art. Such as figure 1 As shown, the biological safety cabinet includes a housing 1 arranged on a support 30 , and casters 31 are provided at the lower ends of the four legs of the support 30 . Housing 1 comprises front cover plate 25, front cover plate 26, left wall, right wall, top wall and bottom wall, is provided with a diffuser plate 27 in the middle part of housing 1, front cover plate 26, the upper half of left wall 1. The upper part of the right wall, the top wall and the diffuser plate form an upper space, and the front sealing plate 25, the lower part of the left wall, the lower part of t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01L1/00
Inventor 吕明杰
Owner SHANGHAI BOXUN MEDICAL BIOLOGICAL INSTR CORP