JPS62227360A - Bio-clean unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is used to safely perform operations such as genetic manipulation, bacterial manipulation, and microbial manipulation in so-called biotechnology such as the pharmaceutical industry, food industry, agriculture and forestry industry, and medical care. The present invention relates to a device that locally creates an ultra-clean space for the purpose of cleanliness.

[Conventional technology]

Conventionally, work in biotechnology has been carried out in a clean room where dust and bacteria are removed by mechanical filtration. In order to prevent the bacteria and microorganisms handled from leaving the clean room, the building itself is
It was common to take measures known as biohazards, such as building a heavy or triple-layered structure to change the atmospheric pressure between the building and the outside.

[Problem that the invention seeks to solve]

However, with the above conventional method, the equipment costs are very high, and the filters used in mechanical filtration almost always have pinholes, so some bacteria and microorganisms can leak out. Not only was this unavoidable, but complete sterilization could not necessarily be expected. In addition, there is a risk that some of the contaminated air in the clean room may leak outside, which limits the work that can be done, and furthermore, it is inevitable that people working in the clean room will encounter bacteria, microorganisms, etc., which poses a threat to life. It was probably also pregnant.

The present invention solves these conventional problems and makes the work space an ultra-clean space that is always free of air, sterile, and sterile without exhausting air, eliminating the dangers in biotechnology. The purpose is to provide a new device that can

[Means and effects for solving the problems] As a means for solving the above problems, the present invention provides a system in which an air suction section and an air discharge section are communicated with each other across a working space provided in the main body. The present invention provides a bio-clean unit characterized in that each of the suction section and the discharge section is provided with an ultraviolet lamp, a photoelectron emission material irradiated by the ultraviolet lamp, and a dust collection electrode.

Therefore, without the need for high voltage, fine particles in the air that are inhaled by irradiation with an ultraviolet lamp are charged and effectively collected electrically, and at the same time, sterilization is carried out using ultraviolet light, keeping the work space clean at all times. This creates an ultra-clean space that is free of dust and sterilization, and the air that is discharged is also free of dust and sterilized, making it possible to completely prevent secondary disasters.

〔Example〕

One embodiment of the present invention will be described with reference to the drawings.
The main body has a work space 2 in the center of the body, and the work space 2 is equipped with a work table 3 and a shutter 4 for taking in and out samples.

Air suction portions 5 are provided on both sides of the main body 1 across the work space 2.
A pre-filter 7 is provided at the inlet of the suction part 5, and a blower 8 for sucking air, an ultraviolet lamp 9, and a translucent lamp, for example, formed in the shape of a wire mesh, are provided. A photoelectron emitting material 10 made of metal or the like and a dust collection electrode 11 are provided.

Further, the discharge section 6 is also provided with an ultraviolet lamp 19, a photoelectron emitting material 20, and a dust collection electrode 21, similar to the suction section 5.

Note that ozone and the like are generated by irradiation with the ultraviolet lamps 9 and 19, and when it is necessary to remove this ozone and the like, an adsorption section 12 made of activated carbon or other adsorbent is installed at the outlet of the suction section 5 and the discharge section 6. It is preferable to provide 22° for each.

In the figure, reference numeral 23 indicates a blind for blocking light so that the ultraviolet lamp 19 in the discharge section 6 does not directly irradiate the work space 2, and arrows indicate air flow.

Therefore, when the main body l configured as described above is used, for example, in a clean room, the air in the clean room is sucked into the suction part 5 by the blower 8;
At this time, a certain amount of coarse particles, bacteria, microorganisms, etc. in the air are removed by the prefilterf. Next, the ultraviolet rays are irradiated with the photoelectron emitting material 1 by irradiation with the ultraviolet lamp 9.
While passing through zero, photoelectrons (secondary electrons) are emitted, and due to the emitted photoelectrons, fine particles in the air that could not be removed by the pre-filter 7 are charged and collected by the dust collection electrode 11. Ru. At the same time, bacteria, microorganisms, etc. are completely killed by the energy of the ultraviolet rays and the ozone generated by the ultraviolet irradiation from the ultraviolet lamp 9. This air flow further flows into the work space 2, but if an adsorption section 12 is provided in front of it, ozone and the like generated by ultraviolet irradiation are removed by the adsorption section 12.

In this way, completely dust-free and sterile air flows through the work space 2, and the inside of the work space 2 is kept in an ultra-clean state.

In addition, since the air discharged through the work space 2 may contain floating bacteria, microorganisms, etc. generated by genetic manipulation, bacterial manipulation, microbial manipulation, etc., the above-mentioned suction The ultraviolet lamp 19, the photoelectron emission material 20, the dust collection electrode 21, the adsorption part 22, etc., similar to those in section 5, are used to completely remove dust and sterilize the product before it is discharged to the outside. Disasters are prevented.

(Effects of the Invention) As described above, according to the present invention, the air flowing in the work space is irradiated with ultraviolet rays to effectively collect particulates in an energy-saving manner without requiring high voltage, and at the same time to sterilize the air. This allows the work space to be kept in an ultra-clean state, and the air that is discharged is also dust-free and sterile, eliminating risks associated with biotechnology. It produces extremely beneficial effects.

[Brief explanation of drawings]

The drawings are configuration explanatory diagrams showing one embodiment of the present invention.

Claims (1)

[Claims] 1. An air suction part and an air discharge part are connected to each other across a working space provided in the main body, and each of the suction part and the discharge part is equipped with an ultraviolet lamp and an ultraviolet lamp. A bio-clean unit characterized by being equipped with a photoelectron emitting material by irradiation and a dust collection electrode. 2. The bio-clean unit according to claim 1, wherein an adsorption section is provided at each outlet of the suction section and the discharge section. 3. The bio-clean unit according to claim 1 or 2, wherein the suction section is equipped with a blower.