KR102104006B1 - Biological safety cabinet with temperature and airflow sensor - Google Patents

Abstract

The present invention relates to a biological safety cabinet equipped with a temperature and airflow sensor, the biological safety cabinet including a work housing, a duct housing, and a temperature and airflow sensor. Thus, the biological safety cabinet equipped with the temperature and airflow sensor formed in three parts automatically controls the distillation flow inside the cabinet to create a stable working environment for workers. The present invention also can achieve the effect such as reducing the working time and increasing the reliability of the work by the airflow sensor, which is completed by semi-conductor packaging of components consisting of a sensor conductor, an input element, a receiving element, and a central processing unit.

Description

BIOLOGICAL SAFETY CABINET WITH TEMPERATURE AND AIRFLOW SENSOR}

The present invention relates to a biosafety workbench equipped with a temperature and wind speed sensor, and more specifically, a biosafety workbench equipped with a temperature and wind speed sensor that allows the interior of a workplace having a potential for biohazard or contamination to be sterile. The Biological Safety Cabinet (BSC) and the temperature and wind speed sensors provided therein can bring the effect of reliable research results and increase of work efficiency to the user, and are provided inside the Biological Safety Cabinet (BSC). Biosafety work table equipped with temperature and wind speed sensors to enable the development of temperature and wind speed sensors to achieve cost reduction, labor cost reduction, improved reliability of research results, increased work volume, reduced working time, and a safe working environment. It is about.

In the laboratory of biological or biochemistry, biosafety that can keep the inside of the work chamber sterile in situations where there is a potential for biohazard or contamination, such as microbial experiments, clinical pathology testing, animal tissue and cell culture, virus research, and biopharmaceutical production A Biological Safety Cabinet (BSC) is essentially used. The biosafety workbench prevents the risk to the health or safety of the operator performing the experiment, while preventing unfiltered air from leaking out of the work chamber, thereby preventing environmental contamination of the work space such as the laboratory. It plays an important role in preventing cross contamination between samples.

Given that the biosafety workbench can have a profound impact on worker health and safety, and that small changes in environmental factors in the laboratory can have a non-negligible impact on the results of the experiment, the original intended functionality is It can be regarded as important to be configured and operated to perform reliably and reliably.

The 'temperature and wind speed sensor', which forms the 'air purification' effect, which is the ultimate goal of the biosafety workbench performing these experiments, is currently in the absence of all domestic products and relies on foreign imports. As a result, the unit cost of the product is increased, which is causing the cost increase.

Examples of the wind sensor include a hot wire anemometer, a windmill anemometer, a rotary vane anemometer, and a pitot tube. Among them, a hot wire anemometer is used to increase the efficiency of the experimental equipment or industrial ventilation system. These thermo-linear anemometers are used in many fields due to easy electrical conversion and signal processing. However, in the case of thermo-linear anemometers, they are affected by ambient temperature and humidity, causing errors in measurement values. . As described above, in fact, in the summer and winter, the frequency of errors for the wind speed sensor is high, so the product productivity is falling. Because of this situation, 'productivity deterioration' is occurring due to this high, it has been necessary to supplement the material and structure. Therefore, research on the stable operation of the temperature and wind speed sensors of these sensors and biosafety worktables compatible with them has been carried out from an early stage. A biosafety workbench equipped with a wind speed sensor was developed.

For example, there is a "air flow sensor (Korean Patent Publication No. 10-2015-7015697)" as a conventional technique, but it is sensitive to temperature and humidity, and there has been a problem in a part lacking an application function for data to be measured.

Republic of Korea Patent Publication No. 10-2015-7015697

The present invention has been devised in view of the above problems, and the first object of the present invention is to provide a worker with a biosafety workbench consisting of a temperature and wind speed sensor, a work housing, and a duct housing to automatically control the distillation flow inside the workbench. The goal is to create a stable working environment.

The second object of the present invention relates to a biosafety work table consisting of a temperature and wind speed sensor, a work housing, and a duct housing. A door roller formed at the entrance of the working space part restricts the opening and closing of the door, and thus a kind of safety mesh (Mesh). It is in helping to play a role.

A third object of the present invention relates to a method for manufacturing a biosafety workbench comprising a frame, a temperature and wind speed sensor, a work housing, and a duct housing, comprising a frame, a sheet metal processing step, a panel post-treatment and painting treatment step, and a panel assembly It relates to a biosafety workbench equipped with temperature and wind speed sensors that can achieve the effects of increasing the amount of work, reducing the working time, and reducing labor costs by sequentially executing the steps, the electric wiring step, the assembly and attachment steps of the components, and the quality verification step.

The fourth object of the present invention relates to a temperature and wind speed sensor, which reduces the working time of the temperature and wind speed sensor and increases the reliability of the work by performing semiconductor packaging processing of a temperature sensing element, a wind speed sensing element, and a central processing unit in one set. It relates to a biosafety workbench equipped with a temperature and wind speed sensor to achieve the effect of the back.

According to a feature for achieving the object of the present invention, the first invention,
A working housing 20 forming a working space;
A duct housing 30 formed on an upper portion of the working housing 20 and having a duct filter 32 for air filtration ;
A sterilization lamp 21 provided on one side of the work table ceiling panel 11 forming the work housing 20 and processing microorganisms inside the work housing 20 by generating short wavelength ultraviolet rays;
An air inlet (22) formed by forming a perforation tool (hole) on one side along a lower end of the opened inlet of the working housing 20;
It is mounted so as to correspond to the outer rim of the front inner panel 13 included in the working housing 20, and is formed vertically from the bottom to the top, but the upper part is formed of an inclined surface so that the airflow of the working housing 20 is a duct housing. Air flow composition panel 14 that serves as a guide reinforcement to move to (30);
The upper end of the work housing 20 and the lower end of the duct housing 30 are interconnected, and an opening formed at the upper end of the duct housing 30 and an opening formed at the upper end of the chamber duct 31.部]) are interconnected, the opening formed at the lower end of the duct housing 30 and the opening formed at the lower end of the chamber duct 31 are interconnected, but the lower end of the inner wall surface A screw-shaped groove is formed along the upper end from the chamber-type duct 31 to facilitate the flow of air;
A duct filter 32 formed by connecting HEPA-FILTER and ULPA-FILTER to each other is disposed at the open upper and lower portions of the chamber duct 31, respectively .
Polypropylene (PP), polyvinyl acetate (PVAC), polyethylene terephthalate (PET), polybutyl terephthalate (PBT), polyethylene naphthalate (PEI), polycaprolactone (PCL), polylactic acid glycolic acid (PLGA) It is formed of one or more types of materials including a duct filter 32 for filtering the suction air;
The door portion 40 is formed in a shape corresponding to the inlet portion of the work housing 20, the door portion 40 is provided with a door roller 41 formed on the surface of the fine teeth, the door sliding groove 42 The fine teeth are formed, and the door parts 40 can be opened by finely moving up and down the door part 40 by engaging the fine teeth of the door roller 41 and the door sliding groove 42:
It is disposed on the inner side wall surface of the working housing 20 and the inner side wall surface of the chamber duct 31 , and is composed of a temperature sensing element 52 and a wind speed sensing element 53, each sensing element 52, 53 A temperature and wind speed sensor (50) for sensing the temperature and the moving speed of the air based on the electrical resistance value changing according to the temperature and wind speed;
Installed on the front panel (12) forming the outermost panel of the working housing (20), wind speed value output, power supply, temperature value output, sterilization lamp control, administrator password setting, timer setting, warming up and remaining air removal time setting , In the biosafety worktable equipped with a temperature and wind speed sensor , including ; a touch screen (25) for setting the filter usage time, energy saving mode ,
The circulation path of the air that flows through the interior of the biosafety workbench 80, the external air flow 61 is introduced into the inlet of the work housing 20, and the external air flow 61 and the working housing 20 After the contaminated air stream is mixed, the mixed air stream 63 is moved to the duct housing 30 and the air inlet 22, the external air stream moved to the duct housing 30 and the contaminated air stream 63, the duct filter 32 The airflow which is sucked into the air inlet and moved to the air inlet 22 is a loading space formed between the front inner panel 13 and the back panel 15 of the work housing 20 and the work panel 16 and the bottom panel 17 ), The mixed air stream (63) is sucked into the loading space formed between, and the duct filter (32) of the duct housing (30) replaces the mixed air stream (63) with a HEPA-FILTER and an ULPA-FILTER filter. It is characterized by being a biosafety work table equipped with a temperature and wind speed sensor, which is characterized by being filtered out. .

According to the biosafety workbench equipped with a temperature and wind speed sensor of the present invention, it relates to a biosafety workbench consisting of a frame, a work housing, and a duct housing. It has the effect of automatically creating a stable working environment for workers.
In addition, the work housing, the duct housing, the temperature and the wind speed sensor is made of a biological safety work table, the door part 40 is formed in a shape corresponding to the entrance of the work housing 20, the door part 40 is fine teeth It has a door roller 41 formed on the surface, fine teeth are formed in the door sliding groove 42, the door roller 40 and the door teeth 40 by engaging the fine teeth of the door sliding groove 42 It can be opened by moving it up and down finely ,

By controlling the output values of the blower motor and the sterilization lamp with the touch screen, it is possible to bring more safety, reliability, and efficiency of antibacterial activity, thereby creating a working environment with a low accident rate.

In addition, the temperature and wind speed sensor, the temperature sensing element 52, the wind speed sensing element 53, the central processing unit, etc., the semiconductor packaging process as a set of the completed temperature and wind speed sensor reduces the working time, work It has the effect of achieving the effect of increasing the reliability, stabilizing the output value, etc.

1 is a perspective view of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention.
Figure 2 is an exploded cross-sectional view of one side of the biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of a main part of a biological eye work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention.
Figure 4 is an exploded cross-sectional view of the side of the biological eye work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention.
5 is an exploded perspective view of a panel in which a panel of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention is disassembled.
6 is a projection view of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention.
7 is an enlarged plan view showing an enlarged main part of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention.
8 is an enlarged cross-sectional view of an enlarged main part after side disassembly of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention.

The following objects, other objects, features and advantages of the present invention will be readily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed contents are thorough and complete and that the spirit of the present invention is sufficiently conveyed to those skilled in the art. The embodiments described and illustrated herein also include its complementary embodiments. In this specification, the singular form also includes the plural form unless otherwise specified in the phrase. As used herein, 'comprise' and / or 'comprising' does not exclude the presence or addition of one or more other components.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the following specific embodiments, various specific contents have been prepared to more specifically describe and understand the invention. However, a reader who has knowledge in this field to understand the present invention can recognize that it can be used without these various specific contents. It should be noted that, in some cases, parts that are commonly known in describing the invention and that are not significantly related to the invention are not described in order to avoid confusion in describing the invention.

1 is a perspective view of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention, and FIG. 2 is an exploded side of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention. Figure 1 is an exploded cross-sectional view, Figure 3 is an exploded perspective view of a main part of a biological eye work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention, Figure 4 is a temperature and wind speed sensor according to an embodiment of the present invention Figure 5 is an exploded cross-sectional view of an exploded side surface of a biological safety work table provided, and FIG. 5 is an exploded perspective view of a frame in which a panel of a biosafety work station equipped with a temperature and wind speed sensor according to an embodiment of the present invention is disassembled. FIG. 7 is a projection view of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention, and FIG. 7 is a main part of a biosafety work table equipped with a temperature and wind speed sensor according to an embodiment of the present invention. Shown is an enlarged plan view, Figure 8 is a side after decomposition of the biological safety workbench provided with a temperature and a wind speed sensor in accordance with one embodiment of the invention, the enlarged main part enlarged cross-sectional Fig.

1 to 7, the present invention relates to a biosafety work equipped with a temperature and wind speed sensor.

The biosafety workbench 80 is provided with a frame 10 that becomes a skeleton, but molds one of aluminum, aluminum bronze, steel that does not conduct flux, different plastics, resins, and titanium. It is formed by.

The frame 10 is divided into parts divided according to location, but its name includes a front panel 12, a back panel 15, a bottom panel 17, on which a painted panel is assembled, but a working housing ( By forming the inner surface of 20), it is divided into five parts, including a worktop ceiling panel (11), a front panel (12), an air flow composition panel (14), and a worktop panel (16), where the antibacterial panel is assembled. Lose.

Accordingly, the worktop ceiling panel 11, the front panel 12, the front inner panel 13, the air flow composition panel 14, the back panel 15, the work panel 16 assembled to the frame 10 , The bottom panel 17 is also formed by molding one material of aluminum, aluminum bronze, non-conducting steel, different plastics, resins, and titanium.

In addition, the panel is capable of achieving the completion of the biosafety workbench 80 which is not oxidized in the air or corroded by water or moisture by post-treatment.

In addition, the loading space between the back of the front inner panel 13 and the back panel 15 assembled to the frame 10, and between the back of the work panel panel 16 and the bottom panel 17 It is formed, but serves as a 'air circulation passage' through which air introduced into the air inlet 22 of the working housing 20 is moved.

2 to 3, the present invention relates to a biosafety work table equipped with a temperature and wind speed sensor.

The working housing 20 is divided into five parts, including a sterilizing lamp 21, an air inlet 22, a pneumatic measuring system 23, a sterilizing water valve 24, and a touch screen 25,

The sterilization lamp 21, which is the first part of the work housing 20, is installed on one side on the surface of the worktop ceiling panel 11, but the sterilization lamp 21 outputs ultraviolet rays of 100 nm to 280 nm. , It has a 'specific microbial ultraviolet sterilization function' that can remove only certain microbial particles inside the test bench, and the sterilization lamp 21 communicates through the touch screen 25 and an electric circuit provided therein. Can be controlled.

In addition, the microorganisms that the ultraviolet rays of the sterilizing lamp 21 decompose include: E. coli, Bacillus substilus, Naegleria gruberi, Vibrio cholerae, and intestinal pathogenicity (E. coli, Hepatitis virus, Measles virus, Bacillus anthracis, Brucella abortus, Yersinia pestis, Ebola virus, Marburg virus ), Lassa virus, and Nipha virus are sterilized to increase the reliability of the experiment.

The sterile water valve 24 of the work housing 20 is installed on one side of the surface of the worktop ceiling panel 11, but a hose pipe is connected to supply distilled water through a water facility provided in the facility, and sterilized Inside the sterilized water valve (24), which has a high risk of being exposed to a high temperature and high humidity environment by the ultrasonic vibration (vibration of 300,000 to 25 million times per second) of the ion valve (piezoelectric ceramic) in the internal loading space of the water valve (24) The contaminants inside the sterilized water valve 24 are decomposed so that bacteria cannot grow.

The sterile water valve 24 of the work housing 20 is installed on one side of the side wall of the work housing 20 and is connected to the open lower or upper part of the hose interlocked with the water facility to supply distilled water to the worker. To make.

The air flow composition panel 14 mounted so as to correspond to the rim of the front inner panel 13 of the working housing 20 is formed vertically along the upper part from its lower end, so that the upper part is inclined about 90 ° to 170 °. As it is manufactured, it guides the distillate streams 60 inside the working housing 20 to be moved to the chamber-type duct 31 without being left over.

The pneumatic measuring system 23 of the working housing 20 represents the pressure value of the air flow as a dial gauge of the pneumatic measuring system 23, and the method of mutual communication is communicated by providing an electric circuit.

As shown in Figure 7, the present invention relates to a biosafety work table equipped with a temperature and wind speed sensor.

The door portion 40 is formed in a shape corresponding to the inlet portion of the work housing 20, the door portion 40 is provided with a door roller 41 formed on the surface of the fine teeth, the door sliding groove (42) The fine teeth are formed, and the fine portions of the door roller 41 and the door sliding groove 42 mesh with each other, so that the door part 40 moves up and down finely and can be opened.

In addition, the material of the door portion 40 is formed of laminated glass, tempered glass, and acrylic polycarbon plastic material, thereby increasing the visibility inside and protecting the work.

The temperature and wind speed sensor 50 is disposed on the inner side wall surface of the working housing 20 and the inner side wall surface of the chamber duct 31 , and is configured to include a temperature sensing element 52 and a wind speed sensing element 53. Each sensing element (52, 53) senses the temperature and movement speed of the air based on electrical resistance values that change with temperature and wind speed.

The temperature and wind speed of the air sensed by the temperature and wind speed sensor 50 are displayed on a touch screen.

2 to 4, the present invention relates to a biosafety work table equipped with a temperature and wind speed sensor.

The duct filter 32 is assembled so as to correspond to the outer circumference along the opened upper and lower parts of the chamber duct 31, the duct filter 32, HEPA-FILTER and ULPA filter (ULPA) -FILTER) is interconnected to form duct filter 32.

The HEPA filter (HEPA-FILTER) is formed of fine particles of 0.3 μm and has a feature of removing 99.99% of foreign substances. When the air passes through the HEPA-FILTER, the HEPA filter (HEPA- FILTER) is equipped with a number of gaskets (Gasket).

The ULPA filter (ULPA-FILTER) is formed of fine particles of 0.12 μm and has a feature of removing 99.99% of foreign substances. When the air passes through the ULPA-FILTER, the ULPA filter (ULPA- FILTER) is equipped with a number of gaskets (Gasket).

The blower motor mounted on the inside of the duct housing 30 and formed to correspond to the opened right opening of the chamber duct 31 is a work table with power formed from a power source provided. It circulates through the intake and exhaust of the air inside.

The circulation path of the air that flows through the interior of the biosafety workbench 80, the external air flow 61 is introduced into the inlet of the work housing 20, and the polluted air formed by the experiment in the work housing 20 and The mixed air flow 63 in which the introduced external air flow 61 is mixed is moved to the duct housing 30 and the air inlet 22.

As for the mixed air flow 63 moved to the duct housing 30, the HEPAFILTER of the duct filter 32 first removes contaminants, and the mixed air flow 63 moved to the air inlet 22 is a working housing. It is moved to the loading space formed between the front inner panel 13 and the rear panel 15 of 20, and the loading space formed between the work panel 16 and the bottom panel 17, and the duct housing 30 ) When the blower motor intakes the mixed air stream 63, the first filtration is completed by the duct filter 32 formed at the lower end of the chamber-type duct 31 to remove contaminants first.

The primary filtered contaminant airflow 60 is completed by secondary filtration by secondly removing contaminants with a duct filter 32 provided at the upper end of the chamber duct 31.

1 to 8, the present invention relates to a biosafety work table equipped with a temperature and wind speed sensor and a method for manufacturing the same.

In order to provide a frame 10 similar to the frame of the biosafety workbench 80, one or more metal materials including copper powder, ceramic powder, plastic powder, iron, nickel, and manganese are heat-pressed and A frame step of forming a frame 10 by laser beam scanning or having a finished product frame 10;

Antibacterial paint formed by mixing the surface of the panel with a phosphate coating and drying it, and mixing two or more types of mixtures including acrylic resin, thinner, zeolite, colorant, and silver nano powder on the dried panel surface. Applying, and a panel coating step of heating and drying in a high temperature environment for about 10 to 15 minutes;

The worktop ceiling panel 11, the front panel 12, the front inner panel 13, the air flow composition panel 14, the rear panel 15, the work panel 16, the bottom panel ( 17) attaching the panel prepared in the panel painting step (S101), the method of attachment is a coating panel bonding step of bonding by bonding a connecting member to a perforated tool (口, hole) formed;

The duct filter 32 is attached so that the open lower end of the chamber duct 31 and the opening formed in the ceiling of the work housing 20 correspond to each other, and the method to be attached is a welded or formed punching tool. , Hole) by connecting the connecting member to the duct installation step of bonding;

A blower motor is attached so as to correspond to the opened right opening of the chamber duct 31, but the method of attachment is a blower installed by attaching a connecting member to a perforated or formed punching hole. step;

Attach the temperature and wind speed sensor 50 to one side of the inner side wall of the working housing 20 and the inner side wall of the chamber duct 31, and sterilize the lamp 21 to one side of the ceiling of the working housing 20. Attachment, the method of being attached is a sensor and lamp installation step to be attached by coupling the connecting member to the formed perforated tool (打孔 口, Hole);

The airflow composition panel 14 is attached to correspond to the front surface along the outer circumference of the front inner panel 13 included in the working housing 20, and the attached method is soldered or formed perforated tools. , Hole) assembly step of airflow composition panel attached by joining the connecting member;

The front door of the door part 40 is formed in a shape corresponding to the inlet part of the work housing 20, and the front door of the door part 40 has a door roller 41 formed on the surface of fine teeth, and the door Fine teeth are formed in the sliding groove (42), the fine door of the door roller (41) and the door sliding groove (42) interlocks with each other, so that the front door of the door part (40) can be opened vertically and opened finely. The step of completing the assembly of the door in which the unit 40 is assembled ; the biosafety work table equipped with the temperature and wind speed sensor is completed by sequentially executing.

1 and 8, the present invention relates to a method for verifying the quality of a biosafety work table equipped with a temperature and wind speed sensor.

The verification method implemented for the 'safe and reliable product' that the biosafety workbench 80 aims for,

As a verification step of the international standardization organization, which is the first verification method, ISO14001: Environmental system, ISO 9001: Quality by verifying whether the standards of the biosafety workbench 80 correspond to the International Organization for Standardization (ISO). Verify that the system licensor can be obtained.

As a verification step of the Korean Industrial Standard, which is the second verification method, it verifies whether the KS certified licensor can be obtained by verifying that the standard of the biosafety workbench 80 is a product corresponding to the Korean Industrial Standard (KS). .

As a third verification method, the verification stage of the European Union, by verifying that the standards of the biosafety workbench 80 are products that correspond to the requirements of the European Union (EU) directives on safety, health, environment and consumer protection ( CE, Conformite European) Verify that the licensor can be obtained.

As a verification step in the US federal government's electrical and electronic field, which is the fourth verification method, can the UL licensor be obtained by verifying that the circuit specifications of the biosafety workbench 100 are in conformity with the industrial standards of the US federal electrical and electronic fields? Verify.

The fifth verification method is the stage of verification of the sanitary standards for food and product related by the U.S. federal government, and the hygiene specifications of the biosafety workbench 80 are in conformity with the food and product related sanitary standards by the U.S. federal government. It verifies that it can acquire a licensor (NSF, National Sanitation Foundation) by verifying that it is a product.

As a verification step of the International Testing Equipment Organization Association, which is the sixth verification method, it verifies whether the SEFA licensor can be obtained by verifying that the standard of the biosafety workbench 80 is a product conforming to the safety standards specified by the International Testing Equipment Organization Association. .

As a verification step according to the 7th verification method, the distillation system specified by the U.S. federal government, the distillation system formed by the biosafety workbench 80 is composed of about 150 standards for ventilation and purification of cold water heaters, filters, and solar heat. It verifies whether it is possible to acquire a licensor (ASHRE, American Society of Refrigerating Engeneers) by verifying that the product conforms to the standard of the system used.

The ninth verification method, the inflow air volume test, is a test that checks whether the flow rate that flows into a biosafety worktop equipped with a temperature and wind speed sensor is 0.5 m / s or more, and a value of 0.5 m / s is an aerosol generated internally. Verify that substances harmful to the human body are not discharged to the outside of the work surface.

The 10th verification method, the worker and product contamination protection test, measures the degree of contamination of microorganisms generated in a biosafety worktop equipped with a temperature and wind speed sensor, and consists of a cross contamination walk, researcher protection, and sample protection. Includes four verification steps.

By completing the verification steps, the quality verification of the biosafety workbench 80 is completed.

As shown in Fig. 8, the present invention relates to a biosafety work table equipped with a temperature and temperature and wind speed sensor.

The temperature and wind speed sensor 50 is a temperature sensor and a thermal linear anemometer is used to check the efficiency of the experimental equipment or the ventilation system.

The DAC (Digital to Analog Converter) provided in the temperature and wind speed sensor 50 converts the binary value output from the central processing unit 54 into an analog electric signal and outputs it.

Inside the temperature and wind speed sensor 50, a temperature sensing element 52, a wind speed sensing element 53 , a central processing unit 54, etc. are processed into semiconductor packaging so that the temperature and wind speed are processed. The sensor 50 is formed.

The configurations shown in the embodiments and drawings described in this specification are only the most preferred embodiments of the present invention and do not represent all the technical spirit of the present invention, and various equivalents that can replace them at the time of this application It should be understood that there may be and variations.

10: frame
11: Worktop ceiling panel 12: Front panel 13: Front inner panel
14: Air flow composition panel 15: Back panel
16: Worktable panel 17: Bottom panel
20: working housing
21: sterilization lamp 22: air inlet 23: pneumatic measuring system
24: sterile water valve 25: touch screen
30: duct housing
31: chamber duct 32: duct filter
40: door
41: door roller 42: door sliding groove
50: temperature and wind speed sensor
51: sensor conductor 52: temperature sensing element
53: wind speed sensing element 54: central processing unit
60: air flow
61: external air 63: mixed air
70: semiconductor packaging
80: biosafety workbench

Claims (2)

A working housing 20 forming a working space;
A duct housing 30 formed on an upper portion of the working housing 20 and having a duct filter 32 for air filtration;
A sterilization lamp 21 provided on one side of the work table ceiling panel 11 forming the work housing 20 and processing microorganisms inside the work housing 20 by generating short wavelength ultraviolet rays;
An air inlet (22) formed by forming a perforation tool (hole) on one side along a lower end of the opened inlet of the working housing 20;
It is mounted so as to correspond to the outer rim of the front inner panel 13 included in the working housing 20, and is formed vertically from the bottom to the top, but the upper part is formed of an inclined surface so that the airflow of the working housing 20 is a duct housing. Air flow composition panel 14 that serves as a guide reinforcement to move to (30);
The upper end of the work housing 20 and the lower end of the duct housing 30 are interconnected, and an opening formed at the upper end of the duct housing 30 and an opening formed at the upper end of the chamber duct 31.部]) are interconnected, the opening formed at the lower end of the duct housing 30 and the opening formed at the lower end of the chamber duct 31 are interconnected, but the lower end of the inner wall surface A screw-shaped groove is formed along the upper end from the chamber-type duct 31 to facilitate the flow of air;
A duct filter 32 formed by connecting a HEPA-FILTER and an ULPA-FILTER to each other is disposed at the open upper and lower portions of the chamber duct 31,
Polypropylene (PP), polyvinyl acetate (PVAC), polyethylene terephthalate (PET), polybutyl terephthalate (PBT), polyethylene naphthalate (PEI), polycaprolactone (PCL), polylactic acid glycolic acid (PLGA) It is formed of one or more types of materials including a duct filter 32 for filtering the suction air;
The door portion 40 is formed in a shape corresponding to the inlet portion of the work housing 20, the door portion 40 is provided with a door roller 41 formed on the surface of the fine teeth, the door sliding groove 42 The fine teeth are formed, and the door parts 40 can be opened by finely moving up and down the door part 40 by engaging the fine teeth of the door roller 41 and the door sliding groove 42:
It is disposed on the inner side wall surface of the working housing 20 and the inner side wall surface of the chamber duct 31, and is composed of a temperature sensing element 52 and a wind speed sensing element 53, respectively. A temperature and wind speed sensor (50) for sensing the temperature and the moving speed of the air based on the electrical resistance value changing according to the temperature and wind speed;
Installed on the front panel (12) forming the outermost panel of the working housing (20), wind speed value output, power supply, temperature value output, sterilization lamp control, administrator password setting, timer setting, warming up and remaining air removal time setting , Set the filter usage time, touch screen 25 to set the energy saving mode;
In a biosafety workbench equipped with temperature and wind speed sensors,
The circulation path of the air that flows through the interior of the biosafety workbench 80, the external air flow 61 is introduced into the inlet of the work housing 20, the external air flow 61 and the working housing 20 The contaminated air stream is mixed to form the mixed air stream 63 to be sucked into the air inlet 22, and the mixed air stream 63 sucked into the air inlet 22 is provided with the front inner panel 13 and the back of the working housing 20. Mixing airflow moved to the duct housing 30 through the loading space formed between the panel 15 and the loading space formed between the work panel 16 and the bottom panel 17, and moved to the duct housing 30 63) is sucked into the duct filter 32, the duct filter 32 of the duct housing 30 is filtered to the outside by filtering the mixed air (63) with a HEPA filter (HEPA-FILTER) and an ULPA filter (ULPA-FILTER) Biosafety worktable equipped with temperature and wind speed sensors, characterized by discharging. delete

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