CN216910338U

CN216910338U - Biological safety cabinet with intelligent exhaust device

Info

Publication number: CN216910338U
Application number: CN202220169659.XU
Authority: CN
Inventors: 姚昆鹏
Original assignee: Qingdao Jiuwei Medical Innovation Research Institute Co ltd
Current assignee: Qingdao Jiuwei Medical Innovation Research Institute Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-08
Anticipated expiration: 2032-01-21

Abstract

The utility model relates to the field of biosafety cabinets, and discloses a biosafety cabinet with an intelligent exhaust device, which comprises a cabinet body, wherein a wind collecting cover is fixedly connected to the position, which covers the periphery of an exhaust pipe, of the top end of the cabinet body, filter screens are fixedly connected to two sides of a guide plate, the other end of a corrugated pipe is fixedly connected to the middle of the top end of a fan, a controller is fixedly connected to the middle of the front end of the cabinet body, and an electric glass door is connected to an opening at the lower side of the front end of the cabinet body in a sliding manner. In the utility model, after the gas is discharged into the air collecting cover, the gas is guided to two sides by the guide plates and is discharged after being filtered by the filter screen, the air speed sensor senses the air exhaust speed and controls the frequency converter to adaptively adjust the power of the fan, the operation signals of the electric glass door and the monitoring camera are fed back to the controller, and the exhaust system in the cabinet body is controlled to make corresponding adjustment according to the signal characteristics, so that the safety of the exhaust system and the cabinet body is improved, and the use requirements of users are better met.

Description

Biological safety cabinet with intelligent exhaust device

Technical Field

The utility model relates to the field of biosafety cabinets, in particular to a biosafety cabinet with an intelligent exhaust device.

Background

The biological safety cabinet is a box type air purification negative pressure safety device capable of preventing aerosol from dissipating due to the fact that some dangerous or unknown biological particles are contained in the experimental operation and treatment process, is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, is the most basic safety protection equipment in a primary protection barrier in laboratory biological safety, and is mainly used for sucking air in the cabinet outwards to enable the interior of the cabinet to be kept in a negative pressure state and protect working personnel through vertical air flow.

Chinese patent document CN206980753U discloses a biosafety cabinet with an intelligent exhaust device, which is perceived by a wind direction sensor, and the alarm sounds to remind the user that an external exhaust pipeline or a fan may fail, thereby ensuring the biosafety cabinet to operate safely, keeping the system balance, and realizing the requirement of safe discharge. However, the exhaust system usually needs to be adapted according to the operation state of the cabinet body when in use, and the device cannot achieve the purpose and needs to be improved.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a biosafety cabinet with an intelligent exhaust device.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a biosafety cabinet with intelligence exhaust device, includes the cabinet body, cabinet body bottom fixedly connected with support frame, cabinet body top middle part fixedly connected with exhaust pipe, cabinet body top covers at exhaust pipe position department fixedly connected with wind-collecting cover all around, the inside fixedly connected with guide plate of wind-collecting cover, the equal fixedly connected with filter screen in guide plate both sides, wind-collecting cover top middle part fixed connection is in bellows one end, bellows other end fixed connection is at the top middle part of fan, bellows middle part external diameter fixedly connected with electronic blast gate, cabinet body front end upside fixedly connected with surveillance camera head, cabinet body front end middle part fixedly connected with controller, cabinet body front end downside opening part sliding connection has electronic glass door, the gaseous detection device of upside fixedly connected with of wind-collecting cover rear end inner wall.

As a further description of the above technical solution:

the four corners of the bottom end of the support frame are fixedly connected with universal wheels.

As a further description of the above technical solution:

and the middle part of the bottom end of the guide plate is fixedly connected with an air speed sensor at a position corresponding to the exhaust pipe.

As a further description of the above technical solution:

the front end of the fan is fixedly connected to the upper side of the rear end of the cabinet body, and the rear end of the fan is fixedly connected with a frequency converter.

As a further description of the above technical solution:

and the middle part of the front end of the air collecting cover is fixedly connected with an alarm.

As a further description of the above technical solution:

and the top end of the electric air valve is fixedly connected with an air valve actuator.

As a further description of the above technical solution:

and one side inside the controller is fixedly connected with an electric door detection unit.

As a further description of the above technical solution:

and the other side of the inner side of the controller is fixedly connected with a camera detection unit.

The utility model has the following beneficial effects:

1. according to the utility model, gas in the cabinet body is discharged into the wind collecting cover through the exhaust pipe, is guided to two sides by the guide plate and is filtered by the filter screen, and is discharged out of the cabinet body through the corrugated pipe by the fan, the air exhaust speed is sensed by the air speed sensor, the power of the fan is adjusted by controlling the frequency converter, the condition that the air exhaust pressure is adaptive is achieved, the air exhaust safety is improved, the gas after treatment is subjected to component monitoring by the gas detection device, if a problem occurs, a signal is immediately sent to the air valve actuator and the electric air valve is controlled to be closed, so that harmful gas is prevented from being discharged out of a room, and the intelligent degree is high.

2. According to the utility model, the electric door detection unit and the camera detection unit in the controller are used for receiving the operation signals of the electric glass door and the monitoring camera and controlling the exhaust system in the cabinet body to make corresponding adjustment according to the signal characteristics, so that the safety of the exhaust system and the cabinet body is improved, and the use requirements of users are better met.

Drawings

FIG. 1 is a schematic perspective view of a biosafety cabinet with an intelligent air exhaust device according to the present invention;

FIG. 2 is a side sectional view of a biosafety cabinet provided with an intelligent exhaust device according to the present invention;

fig. 3 is a schematic internal view of a controller in a biosafety cabinet provided with an intelligent exhaust device according to the present invention.

Illustration of the drawings:

1. a cabinet body; 2. a support frame; 3. a universal wheel; 4. an exhaust duct; 5. a wind collecting cover; 6. a baffle; 7. filtering with a screen; 8. a wind speed sensor; 9. a bellows; 10. a fan; 11. an electric air valve; 12. an air valve actuator; 13. a frequency converter; 14. an alarm; 15. an electric glass door; 16. a surveillance camera; 17. a controller; 18. an electric door detection unit; 19. a camera detection unit; 20. a gas detection device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, one embodiment of the present invention is provided: a biosafety cabinet with an intelligent exhaust device comprises a cabinet body 1, wherein the bottom end of the cabinet body 1 is fixedly connected with a support frame 2 for supporting and fixing, the middle part of the top end of the cabinet body 1 is fixedly connected with an exhaust pipe 4, a main exhaust structure in the cabinet body 1, the top end of the cabinet body 1 is fixedly connected with a wind-collecting cover 5 at the position covering the periphery of the exhaust pipe 4, gas exhausted from the cabinet body 1 is collected, the interior of the wind-collecting cover 5 is fixedly connected with a guide plate 6, two sides of the guide plate 6 are both fixedly connected with filter screens 7 for biological filtration, the exhaust safety is improved, the middle part of the top end of the wind-collecting cover 5 is fixedly connected with one end of a corrugated pipe 9, the other end of the corrugated pipe 9 is fixedly connected with the middle part of the top end of a fan 10, one of the main exhaust structure, the outer diameter of the middle part of the corrugated pipe 9 is fixedly connected with an electric air valve 11, a switch for controlling the exhaust process, and a monitoring camera 16 is fixedly connected with the upper side of the front end of the cabinet body 1, the monitoring cabinet comprises a monitoring cabinet body 1, a controller 17 fixedly connected to the middle of the front end of the cabinet body 1, a main control structure, an electric glass door 15 connected to an opening at the lower side of the front end of the cabinet body 1 in a sliding manner, and a gas detection device 20 fixedly connected to the upper side of the inner wall of the rear end of the air collection cover 5 and capable of detecting gas components.

The equal fixedly connected with universal wheel 3 in 2 bottom four corners of support frame, make things convenient for whole day device to remove, 6 bottom middle parts of guide plate and exhaust pipe 4 for position department fixedly connected with air velocity transducer 8, the wind speed of response exhaust, fan 10 front end fixed connection is in the rear end upside of the cabinet body 1, fan 10 rear end fixedly connected with converter 13, the power of airing exhaust of

control fan

10, 5 front end middle parts fixedly connected with siren 14 of air-collecting cover, the alarming action, 11 top fixedly connected with blast gate executor 12 of electronic blast gate, the switch of control electronic blast gate 11, the inside one side fixedly connected with electrically operated gate detecting element 18 of controller 17, detect the running state of electronic glass door 15, controller 17 inboard opposite side fixedly connected with camera detecting element 19, detect the monitoring signal of surveillance camera 16.

The working principle is as follows: the gas in the cabinet body 1 is discharged into a wind collecting cover 5 through an exhaust pipe 4, the gas is guided to two sides by a guide plate 6 and filtered by a filter screen 7, the gas is discharged out of the cabinet body 1 through a corrugated pipe 9 by a fan 10, the exhaust rate is sensed by a wind speed sensor 8, the power of the fan 10 is controlled by a frequency converter 13 to achieve the condition that the exhaust air pressure is adaptive, the gas after being processed is monitored by a gas detection device 20, if a problem occurs, a signal is immediately sent to an air valve actuator 12 and the closing of an electric air valve 11 is controlled to prevent harmful gas from being discharged out of a room, an electric door detection unit 18 and a camera detection unit 19 in a controller 17 receive operation signals of an electric glass door 15 and a monitoring camera 16, when the electric glass door 15 is opened and the monitoring camera 16 detects an object, a worker operates, and the cabinet body 1 is in a working state, the exhaust system in the cabinet body 1 makes corresponding adjustment, when the electric glass door 15 is closed and the monitoring camera 16 has no detection signal, it indicates that the cabinet body 1 is in a closed state, the exhaust system in the cabinet body 1 makes corresponding adjustment, and all the other states can make corresponding adjustment, so that the safety of the exhaust system and the cabinet body 1 is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a biosafety cabinet with intelligence exhaust device, includes the cabinet body (1), its characterized in that: the improved cabinet is characterized in that a supporting frame (2) is fixedly connected to the bottom end of the cabinet body (1), an exhaust pipe (4) is fixedly connected to the middle of the top end of the cabinet body (1), a wind collecting cover (5) is fixedly connected to the position, around the exhaust pipe (4), covered at the top end of the cabinet body (1), a guide plate (6) is fixedly connected to the inside of the wind collecting cover (5), filter screens (7) are fixedly connected to the two sides of the guide plate (6), the middle of the top end of the wind collecting cover (5) is fixedly connected to one end of a corrugated pipe (9), the other end of the corrugated pipe (9) is fixedly connected to the middle of the top end of a fan (10), an electric air valve (11) is fixedly connected to the outer diameter of the middle of the corrugated pipe (9), a monitoring camera (16) is fixedly connected to the upper side of the front end of the cabinet body (1), a controller (17) is fixedly connected to the middle of the front end of the cabinet body (1), and an electric glass door (15) is slidably connected to the lower side opening of the front end of the cabinet body (1), and the upper side of the inner wall of the rear end of the air collecting cover (5) is fixedly connected with a gas detection device (20).

2. The biosafety cabinet provided with an intelligent exhaust device according to claim 1, characterized in that: four corners of the bottom end of the support frame (2) are fixedly connected with universal wheels (3).

3. The biosafety cabinet provided with an intelligent exhaust device according to claim 1, characterized in that: and the middle part of the bottom end of the guide plate (6) is fixedly connected with an air speed sensor (8) at a position corresponding to the exhaust pipe (4).

4. The biosafety cabinet provided with an intelligent exhaust device according to claim 1, characterized in that: the front end of the fan (10) is fixedly connected to the upper side of the rear end of the cabinet body (1), and the rear end of the fan (10) is fixedly connected with a frequency converter (13).

5. The biosafety cabinet provided with an intelligent exhaust device according to claim 1, characterized in that: the middle part of the front end of the wind collecting cover (5) is fixedly connected with an alarm (14).

6. The biosafety cabinet provided with an intelligent air exhaust device according to claim 1, characterized in that: the top end of the electric air valve (11) is fixedly connected with an air valve actuator (12).

7. The biosafety cabinet provided with an intelligent air exhaust device according to claim 1, characterized in that: and one side inside the controller (17) is fixedly connected with an electric door detection unit (18).

8. The biosafety cabinet provided with an intelligent exhaust device according to claim 1, characterized in that: the other side of the inner side of the controller (17) is fixedly connected with a camera detection unit (19).