CN212383714U - Biological safety cabinet - Google Patents
Biological safety cabinet Download PDFInfo
- Publication number
- CN212383714U CN212383714U CN202020227796.5U CN202020227796U CN212383714U CN 212383714 U CN212383714 U CN 212383714U CN 202020227796 U CN202020227796 U CN 202020227796U CN 212383714 U CN212383714 U CN 212383714U
- Authority
- CN
- China
- Prior art keywords
- air current
- sensor
- velocity
- flow sensor
- current velocity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a biological safety cabinet, including frame, rack and microcomputer control ware, four different positions in the rack are fixed mounting respectively air current velocity of flow sensor, air current velocity of flow sensor passes through interface connection microcomputer control ware, sets up data processing module, data display module and alarm device in the controller. Biological safety cabinet, through the airflow velocity in sensor real-time supervision and the demonstration safety cabinet, report to the police when the velocity of flow surpasss the setting value, the staff in time checks possible trouble through the monitoring data, prevents that airflow channel from having the safety of unusual in time discovering influence experimenter, sample and environment.
Description
Technical Field
The utility model relates to a biological assay equipment field, in particular to biological safety cabinet.
Background
The biosafety cabinet is designed for protecting the operator, the laboratory environment and the experimental materials from being exposed to infectious aerosols and splashes which may be generated in the operation process when operating infectious experimental materials such as primary cultures, strains of bacteria and viruses and diagnostic specimens. At present, the secondary biosafety cabinet is the most widely applied cabinet type, air in a working chamber is exhausted through a fan, negative pressure is generated in the working chamber, the air enters the working chamber from the top, vertically descends, continuously blows through a working area and is captured by a grid at the bottom, and therefore a test article in the cabinet is protected from being polluted by external dust or bacteria; thereby the air current that gets into the studio by the front window level is balanced mutually with vertical air current and forms the air curtain and protect the laboratory staff, and the combustion gas passes through high-efficient air cleaner's filtration to avoid environmental pollution, so the protection principle of second grade biological safety cabinet sets out, will realize the guard action of safety cabinet, and the control air current is very critical, if admit air or exhaust passage blocks up or the filter function is unusual, leads to the air current circulation unusual, and the safety cabinet just can't reach the requirement.
An object of the utility model is to provide a biological safety cabinet admits air perpendicularly, the level of biological safety cabinet admits air in the experimentation, carminative airflow velocity carries out real time monitoring and unusual warning to in time investigate equipment problem, thereby solve the problem of proposing among the above-mentioned background art.
Disclosure of Invention
Utility model purpose: in order to overcome not enough above, the utility model aims at providing a biological safety cabinet, through the air current velocity in sensor real-time supervision and the display safety cabinet, report to the police when the velocity of flow surpasss the setting value, the staff in time checks possible trouble through monitoring data, prevents that air current channel from having the safety of unusual in time discovering influence experimenter, sample and environment.
The technical scheme is as follows: in order to achieve the above object, the utility model provides a biosafety cabinet, which comprises a frame, a cabinet and a microcomputer controller, wherein the cabinet is fixedly arranged at the upper end of the frame, the microcomputer controller is fixed at one side of the cabinet, the cabinet comprises a working chamber and a gas exchange chamber, the gas exchange chamber is arranged at the upper part of the working chamber, the front part of the working chamber is provided with a glass door, the bottom part of the working chamber is provided with a front edge grid and a rear edge grid, the top part of the working chamber is provided with a through hole, the working chamber is communicated with the gas exchange chamber through the front edge grid and the rear edge grid, the bottom part and the rear side of the cabinet, the top part of the gas exchange chamber is provided with an air inlet hole and an air outlet hole, the air inlet hole is right opposite to the through hole, a fan is fixedly arranged at the lower side of the air outlet hole, an exhaust air filter, first air current velocity of flow sensor is located under the through-hole, second air current velocity of flow sensor is located the glass door dead ahead, first air current velocity of flow sensor and second air current velocity of flow sensor pass through interface connection microcomputer control ware for the real-time data that the monitoring was admitted air perpendicularly, the level.
Further, in the biological safety cabinet, a third airflow flow velocity sensor is fixedly installed at a communication position of the working chamber and the gas exchange chamber at the rear side of the cabinet, and the third airflow flow velocity sensor is connected with the microcomputer controller through an interface to monitor total exhaust real-time data.
Further, according to the biological safety cabinet, the side wall of the working chamber is further provided with a fourth airflow flow velocity sensor, and the fourth airflow flow velocity sensor is connected with the microcomputer controller through an interface and used for monitoring exhaust data of the back edge grating.
Further, in the biosafety cabinet, the airflow rate sensor is a hotline chamber sensor.
Furthermore, according to the biological safety cabinet, the data processing module is arranged in the microcomputer controller, and the safety value range of the airflow speed is set in the data processing module, so that comparison with monitoring data is facilitated.
Furthermore, according to the biological safety cabinet, the microcomputer controller is internally provided with the airflow and flow velocity sensor real-time data display module, and after failure alarm, the possible reasons of failure can be analyzed quickly according to data displayed by the display module.
Further, in the biological safety cabinet, the data processing module in the microcomputer controller is connected with the LED lamp, and the alarm is given out through the flickering of the LED lamp.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a biological safety cabinet through the installation air current velocity of flow sensor real time monitoring data of admitting air in the place ahead of admitting air below and level perpendicularly admits air to contrast with the safe value scope of settlement, in time the alarm avoids causing harm when breaking down.
2. The utility model discloses a biosafety cabinet, through at grid exhaust end and total exhaust passage installation air current velocity of flow sensor real time monitoring exhaust data, be convenient for receive the troubleshooting analysis after the alarm.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the left side view of the present invention;
fig. 3 is a flowchart of the control method of the present invention.
Detailed Description
The invention will be further elucidated with reference to the drawings and the specific embodiments.
Examples
As shown in fig. 1 and 2, a biosafety cabinet comprises a rack 1, a cabinet and a microcomputer controller 4, wherein the cabinet is fixedly installed at the upper end of the rack 1, the microcomputer controller 4 is fixed at one side of the cabinet, the cabinet comprises a working chamber 2 and a gas exchange chamber 3, the gas exchange chamber 3 is located at the upper part of the working chamber 2, the front part of the working chamber 2 is provided with a glass door 21, the bottom part of the working chamber is provided with a front edge grating 22 and a rear edge grating 23, the top part of the working chamber is provided with a through hole 24, the working chamber 2 is communicated with the gas exchange chamber 3 through the front edge grating 22 and the rear edge grating 23 and the bottom part and the rear side of the cabinet, the top part of the gas exchange chamber 3 is provided with a gas inlet 31 and a gas outlet 32, the gas inlet 31 is right aligned to the through hole 24, a fan 33 is fixedly installed at the lower side, first air current velocity of flow sensor 5 of lateral wall fixed mounting and second air current velocity of flow sensor 6 of studio 2, first air current velocity of flow sensor 5 is located under the through-hole 24, second air current velocity of flow sensor 6 is located the dead ahead of glass door 21, first air current velocity of flow sensor 5 and second air current velocity of flow sensor 6 pass through interface connection microcomputer control ware 4 for the monitoring admits air perpendicularly, the horizontal real-time data that admits air.
Further, in the biological safety cabinet, the working chamber 2 and the gas exchange chamber 3 are fixedly provided with a third airflow flow velocity sensor 8 at the communication position of the rear side of the cabinet, and the third airflow flow velocity sensor 8 is connected with the microcomputer controller 4 through an interface to monitor the total exhaust real-time data.
Further, according to the biological safety cabinet, the side wall of the working chamber 2 is further provided with a fourth airflow flow velocity sensor 7, and the fourth airflow flow velocity sensor 7 is connected with the microcomputer controller 4 through an interface and used for monitoring exhaust data of the back edge grating.
Further, in the biosafety cabinet, the airflow rate sensor is a hotline chamber sensor.
Furthermore, in the biological safety cabinet, the microcomputer controller 4 is internally provided with a data processing module, and the data processing module is internally provided with a safety value range of the airflow speed, so that comparison with monitoring data is facilitated.
Furthermore, according to the biological safety cabinet, the microcomputer controller 4 is internally provided with the real-time data display module of the airflow and flow velocity sensor, and after failure alarm, the possible reasons of failure can be analyzed quickly according to the data displayed by the display module.
Further, in the biological safety cabinet, the data processing module in the microcomputer controller 4 is connected with the LED lamp, and the LED lamp flashes to alarm.
During operation, set up in the microcomputer control ware 4 and compare the right data range with the monitoring data of first air current velocity of flow sensor 5 and second air current velocity of flow sensor 6, data processing module compares the real-time supervision data of first air current velocity of flow sensor 5 and second air current velocity of flow sensor 6 with the data range that sets up, and when surpassing the scope, signal intercommunication LED lamp scintillation was reported to the police. Meanwhile, data of the first airflow flow velocity sensor 5, the second airflow flow velocity sensor 6, the third airflow flow velocity sensor 8 and the fourth airflow flow velocity sensor 7 are displayed on the data display module at the same time, and a worker checks possible faults through abnormal data.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the invention and should not be interpreted as limiting the scope of the invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (7)
1. A biosafety cabinet is characterized in that: including frame (1), rack and microcomputer controller (4), rack fixed mounting is in the upper end of frame (1), microcomputer controller (4) is fixed in one side of rack, the rack contains studio (2) and gas exchange room (3), gas exchange room (3) are located studio (2) upper portion, studio (2) front portion is equipped with glass door (21), and the bottom is equipped with leading edge grid (22) and back edge grid (23), and the top is equipped with through-hole (24), and bottom, the rear side of studio (2) through leading edge grid (22) and back edge grid (23), rack communicate with each other with gas exchange room (3), gas exchange room (3) top is equipped with (31), exhaust hole (32), inlet hole (31) are just right with through-hole (24), exhaust hole (32) downside fixed mounting fan (33), exhaust hole (32) upper portion fixed mounting exhaust air cleaner (34), through-hole (24) upper portion fixed mounting air cleaner (35) that admits air, the first air current velocity of flow sensor of lateral wall fixed mounting (5) and second air current velocity of flow sensor (6) of studio (2), first air current velocity of flow sensor (5) are located through-hole (24) under, second air current velocity of flow sensor (6) are located glass door (21) dead ahead, first air current velocity of flow sensor (5) and second air current velocity of flow sensor (6) pass through interface connection microcomputer control ware (4).
2. The biosafety cabinet according to claim 1, wherein: and a third airflow flow velocity sensor (8) is fixedly installed at the communication position of the working chamber (2) and the gas exchange chamber (3) at the rear side of the cabinet, and the third airflow flow velocity sensor (8) is connected with the microcomputer controller (4) through an interface.
3. The biosafety cabinet according to claim 1, wherein: the lateral wall of studio (2) still is equipped with fourth air current velocity of flow sensor (7), fourth air current velocity of flow sensor (7) pass through interface connection microcomputer control ware (4).
4. A biosafety cabinet according to any of claims 1-3, wherein: the airflow velocity sensor is a hot wire chamber sensor.
5. The biosafety cabinet according to claim 1, wherein: and a data processing module is arranged in the microcomputer controller (4), and a safety value range of the airflow speed is set in the data processing module.
6. The biosafety cabinet according to claim 5, wherein: and an airflow flow velocity sensor real-time data display module is arranged in the microcomputer controller (4).
7. The biosafety cabinet according to claim 5, wherein: and the data processing module in the microcomputer controller (4) is connected with the LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020227796.5U CN212383714U (en) | 2020-02-28 | 2020-02-28 | Biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020227796.5U CN212383714U (en) | 2020-02-28 | 2020-02-28 | Biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212383714U true CN212383714U (en) | 2021-01-22 |
Family
ID=74247442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020227796.5U Expired - Fee Related CN212383714U (en) | 2020-02-28 | 2020-02-28 | Biological safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212383714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368908A (en) * | 2021-08-12 | 2021-09-10 | 益诺思生物技术南通有限公司 | High-safety biological safety cabinet and using method thereof |
-
2020
- 2020-02-28 CN CN202020227796.5U patent/CN212383714U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368908A (en) * | 2021-08-12 | 2021-09-10 | 益诺思生物技术南通有限公司 | High-safety biological safety cabinet and using method thereof |
| CN113368908B (en) * | 2021-08-12 | 2021-10-12 | 益诺思生物技术南通有限公司 | High-safety biological safety cabinet and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212383714U (en) | Biological safety cabinet | |
| CN104482602A (en) | Intelligent air purifier and monitoring method for service life of filter screen of intelligent air purifier | |
| CN101219432B (en) | Safety workbench with an easy-to-clean front panel | |
| CN211706804U (en) | Novel biological safety cabinet | |
| US20080150405A1 (en) | Safety workbench having double-walled floor trough | |
| CN218237737U (en) | Laboratory air quality control system | |
| CN208288032U (en) | Gas treatment Biohazard Safety Equipment | |
| CN214895587U (en) | Portable electric power engineering detection device | |
| CN109443448A (en) | A kind of Biohazard Safety Equipment Multi-parameter detection device | |
| CN107883511A (en) | Multifunction long-acting filtering absorption ventilation unit | |
| CN209911330U (en) | Indoor air quality detection system | |
| CN210269527U (en) | Oil smoke monitoring facilities with separation air chamber | |
| CN210090428U (en) | Detection device for exhaust-gas treatment | |
| CN210663137U (en) | Air purification device suitable for environmental monitoring | |
| CN206046058U (en) | A kind of durable Biohazard Safety Equipment | |
| CN217901696U (en) | Monitoring system for be used for superclean bench | |
| CN219879948U (en) | Biological safety cabinet | |
| CN105935680B (en) | A kind of ventilation hoods for laboratories | |
| CN206152601U (en) | Real -time online nitrogen oxide monitoring processing system of offshore oil platform | |
| CN218413673U (en) | Automatic power-off alarm device for dust removal equipment of refractory brick production workshop | |
| CN217313462U (en) | Biological safety cabinet with multifunctional exhaust system | |
| CN217017743U (en) | Anti-deposition high-speed gas purging device | |
| CN209400380U (en) | A kind of closed environment health automatic monitoring alarm | |
| CN214319487U (en) | Pulse type smelting furnace dust removal equipment | |
| CN217505131U (en) | Pressurization detection early warning and automatic discharging mechanism for closed environment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |