CN215613981U

CN215613981U - Adjustable chemical experiment fume chamber

Info

Publication number: CN215613981U
Application number: CN202122231380.8U
Authority: CN
Inventors: 吴琴; 李华
Original assignee: Taixing Hualong Chemical Experiment Equipment Co ltd
Current assignee: Taixing Hualong Chemical Experiment Equipment Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-01-25
Anticipated expiration: 2031-09-15

Abstract

The utility model relates to the field of fume hoods, in particular to an adjustable chemical experiment fume hood, which comprises a cabinet body, wherein an experiment cabin is arranged inside the cabinet body, a region sensor is arranged at the top of the experiment cabin, an exhaust fan is arranged at the top of the cabinet body, an exhaust pipe is arranged at the top of the exhaust fan, a bottom cabinet is arranged at the bottom of the cabinet body, a controller is arranged at the top of the bottom cabinet, an emergency exhaust switch is arranged at one side of the controller, an observation door is arranged at one side of the experiment cabin, a door handle is arranged at the bottom of the observation door, displacement sensors are arranged at two sides of the observation door, an infrared sensor is arranged at the bottom of the observation door, a surface wind speed sensor is arranged at one side of the top of the observation door, a detector is arranged at the bottom of the surface wind speed sensor, an alarm lamp is arranged at the top of the detector, a buzzer is arranged at the bottom of the detector, an exhaust pipe is arranged at the rear end of the inner wall of the experiment cabin, and exhaust outlets are arranged at two sides of the exhaust pipe, this fume chamber control adjusts exhaust fan energy consumption under different states, reduces use cost.

Description

Adjustable chemical experiment fume chamber

Technical Field

The utility model relates to the field of fume hoods, in particular to an adjustable chemical experiment fume hood.

Background

Laboratory ventilation is an integral part of laboratory design. In order for laboratory workers not to inhale or swallow some toxic, pathogenic or non-toxic chemicals and organisms, good ventilation should be provided in the laboratory. To prevent the absorption of some vapors, gases and particulates (smoke, soot, dust and aerosols), the pollutants must be removed by fume hoods, hoods or local ventilation; the cabinet type exhaust hood is commonly called as a fume hood and is similar to the closed hood; the small part spray-painting cabinet and the chemical laboratory fume hood are typical structures of cabinet type exhaust hoods; a large-scale chamber type ventilation cabinet has a completely opened side surface, and an operator works in the cabinet and is mainly used for large-scale paint spraying, powder bagging and the like. The working opening of the fume hood has great influence on the air distribution in the hood, and the air distribution directly influences the working effect of the cabinet type exhaust hood.

There are the following problems:

at present, when the existing experimental ventilation cabinet is used, the internal exhaust power is constant, the maximum power is generally achieved, and the use cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an adjustable chemical experiment fume hood.

In order to achieve the purpose, the utility model adopts the following technical scheme: an adjustable chemical experiment ventilation cabinet comprises a cabinet body, wherein an experiment cabin is arranged inside the cabinet body, a zone sensor is installed at the top of the experiment cabin, an exhaust fan is installed at the top of the cabinet body, an exhaust pipe is installed at the top of the exhaust fan, a bottom cabinet is installed at the bottom of the cabinet body, a controller is installed at the top of the bottom cabinet, an emergency exhaust switch is installed at one side of the controller, an observation door is installed at one side of the experiment cabin, a door handle is installed at the bottom of the observation door, displacement sensors are installed at two sides of the observation door, an infrared sensor is installed at the bottom of the observation door, a surface air velocity sensor is installed at one side of the top of the observation door, a detector is installed at the bottom of the surface air velocity sensor, an alarm lamp is installed at the top of the detector, a buzzer is installed at the bottom of the detector, and an exhaust pipe is installed at the rear end of the inner wall of the experiment cabin, air outlets are arranged on two sides of the air exhaust pipe.

As a further description of the above technical solution:

the top movable mounting of experiment cabin has regional sensor, the top fixed mounting of the cabinet body has the exhaust fan.

As a further description of the above technical solution:

the top movable mounting of exhaust fan has the exhaust pipe, the bottom fixed mounting of the cabinet body has the end cabinet.

As a further description of the above technical solution:

the top of the bottom cabinet is fixedly provided with a controller, and one side of the controller is fixedly provided with an emergency exhaust switch.

As a further description of the above technical solution:

an observation door is movably arranged on one side of the experiment cabin, and a door handle is fixedly arranged at the bottom of the observation door.

As a further description of the above technical solution:

the two sides of the observation door are fixedly provided with displacement sensors, the bottom of the observation door is fixedly provided with an infrared sensor, and one side of the top of the observation door is fixedly provided with a surface wind speed sensor.

As a further description of the above technical solution:

the bottom fixed mounting of face wind speed sensor has the detector, the top fixed mounting of detector has the warning light, the bottom fixed mounting of detector has bee calling organ, the rear end movable mounting of experiment cabin inner wall has the connecting pipe of airing exhaust.

The utility model has the following beneficial effects: the fume chamber senses the opening and closing state of the observation door through the displacement sensor to sense the closed and opened states of the experiment chamber, when the experiment chamber is in the closed state, the speed of the internal air flow is stable, the controller controls the power of the exhaust fan according to the required exhaust rate to reduce the redundant energy consumption, the regional sensor senses the movement of personnel and cooperates with the surface air speed sensor to sense the speed change of the internal air flow of the experiment chamber when the observation door is opened by the personnel, the speed change is fed back to the controller, the controller increases the power of the exhaust fan according to the change data of the air flow to increase the exhaust rate, the harmful gas can be normally exhausted under the condition that the air flows change, the safety of the workers when the observation door is opened is ensured, and the excessive operation energy consumption cost of the exhaust fan is reduced by controlling the exhaust power of the exhaust fan according to the real-time required exhaust rate, realize energy-conservation, reduce use cost, the detector fitting surface air velocity transducer who sets up sends acousto-optic warning through warning light and bee calling organ after detecting the skew set value of the interior wind speed of cabinet, warns the staff, security when improving the fume chamber and using.

Drawings

FIG. 1 is a schematic view of the overall structure of an adjustable chemical experiment fume hood provided by the utility model;

FIG. 2 is a front view of an adjustable chemical experiment fume hood according to the present invention;

FIG. 3 is a side view of an adjustable chemical experiment fume hood according to the present invention.

Illustration of the drawings:

1. a cabinet body; 2. an experiment cabin; 3. an area sensor; 4. an exhaust fan; 5. an exhaust duct; 6. a bottom cabinet; 7. a controller; 8. an emergency exhaust switch; 9. an observation door; 10. a door handle; 11. a displacement sensor; 12. an infrared sensor; 13. a surface wind speed sensor; 14. an air exhaust connecting pipe; 15. an air outlet; 16. a detector; 17. an alarm light; 18. a buzzer.

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 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: an adjustable chemical experiment ventilation cabinet comprises a cabinet body 1, an experiment cabin 2 is arranged inside the cabinet body 1, a zone sensor 3 is arranged at the top of the experiment cabin 2, an exhaust fan 4 is arranged at the top of the cabinet body 1, an exhaust pipe 5 is arranged at the top of the exhaust fan 4, a bottom cabinet 6 is arranged at the bottom of the cabinet body 1, a controller 7 is arranged at the top of the bottom cabinet 6, an emergency exhaust switch 8 is arranged at one side of the controller 7, an observation door 9 is arranged at one side of the experiment cabin 2, a door handle 10 is arranged at the bottom of the observation door 9, displacement sensors 11 are arranged at two sides of the observation door 9, an infrared sensor 12 is arranged at the bottom of the observation door 9, a surface air velocity sensor 13 is arranged at one side of the top of the observation door 9, a detector 16 is arranged at the bottom of the surface air velocity sensor 13, an alarm lamp 17 is arranged at the top of the detector 16, a buzzer 18 is arranged at the bottom of the detector 16, an exhaust connecting pipe 14 is arranged at the rear end of the inner wall of the experiment cabin 2, air outlets 15 are provided at both sides of the air discharge connection pipe 14.

In this example, the top of the experiment chamber 2 is movably provided with a zone sensor 3 capable of sensing whether a person is in a certain zone in front of the cabinet body 1, the top of the cabinet body 1 is fixedly provided with an exhaust fan 4, the top of the exhaust fan 4 is movably provided with an exhaust pipe 5, the bottom of the cabinet body 1 is fixedly provided with a bottom cabinet 6 capable of containing or placing experiment equipment or articles, the top of the bottom cabinet 6 is fixedly provided with a controller 7, one side of the controller 7 is fixedly provided with an emergency exhaust switch 8, in the experiment process, when emergency needs emergency exhaust in the occurrence, the switch with the maximum exhaust speed is started, one side of the experiment chamber 2 is movably provided with an observation door 9, the bottom of the observation door 9 is fixedly provided with a door handle 10 for facilitating the opening or closing of the user, two sides of the observation door 9 are fixedly provided with displacement sensors 11, the range of opening of the observation door 9 is sensed, the bottom of the observation door 9 is fixedly provided with an infrared sensor 12, personnel's insurance induction system before response cabinet, one side fixed mounting at observation door 9 top has a face air velocity transducer 13, the speed and the change of the inside air current of response, the bottom fixed mounting of face air velocity transducer 13 has detector 16, fitting surface air velocity transducer 13, under the skew set value's of wind speed condition, start alarm lamp 17 and buzzer 18 and carry out the audible and visual alarm, the security of use improves, detector 16's top fixed mounting has alarm lamp 17, detector 16's bottom fixed mounting has buzzer 18, the rear end movable mounting of 2 inner walls in laboratory cabin has exhaust connecting pipe 14.

The working principle and the process are as follows: during the use, the fume chamber passes through the on-off state of displacement sensor 11 response observation door 9, come to respond to experiment cabin 2 and be in the state of sealing and opening, when experiment cabin 2 closed condition, inside air velocity is stable, controller 7 can control the power of exhaust fan 4 according to required exhaust rate, can reduce unnecessary energy consumption, when the user opened observation door 9, displacement sensor 11 responds to the range that observation door 9 opened, area sensor 3 senses personnel, the speed variation of the inside air current of experiment cabin 2 is responded to face air velocity transducer 13, feed back to controller 7, controller 7 increases the power of its exhaust fan 4 according to the change data of air current in order to increase exhaust rate, guarantee that harmful gas can normally discharge under the condition of these air current changes.

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. Adjustable chemical industry experiment fume chamber, including the cabinet body (1), its characterized in that: the utility model discloses a cabinet for the wind turbine, including the cabinet body, the inside of the cabinet body (1) is provided with experiment cabin (2), area sensor (3) are installed at the top of experiment cabin (2), exhaust fan (4) are installed at the top of the cabinet body (1), exhaust pipe (5) are installed at the top of exhaust fan (4), end cabinet (6) are installed to the bottom of the cabinet body (1), controller (7) are installed at the top of end cabinet (6), urgent air exhaust switch (8) are installed to one side of controller (7), observation door (9) are installed to one side of experiment cabin (2), door handle (10) are installed to the bottom of observation door (9), displacement sensor (11) are installed to the both sides of observation door (9), infrared sensor (12) are installed to the bottom of observation door (9), face air velocity transducer (13) are installed to one side at observation door (9) top, detector (16) is installed to the bottom of face anemoscope (13), warning light (17) are installed at the top of detector (16), bee calling organ (18) are installed to the bottom of detector (16), the rear end of experiment cabin (2) inner wall is installed exhaust connecting pipe (14), the both sides of exhaust connecting pipe (14) are provided with air exit (15).

2. The adjustable chemical experiment fume chamber of claim 1, wherein: the top movable mounting of experiment cabin (2) has area sensor (3), the top fixed mounting of the cabinet body (1) has exhaust fan (4).

3. The adjustable chemical experiment fume chamber of claim 1, wherein: the top movable mounting of exhaust fan (4) has exhaust pipe (5), the bottom fixed mounting of the cabinet body (1) has end cabinet (6).

4. The adjustable chemical experiment fume chamber of claim 1, wherein: the top of the bottom cabinet (6) is fixedly provided with a controller (7), and one side of the controller (7) is fixedly provided with an emergency exhaust switch (8).

5. The adjustable chemical experiment fume chamber of claim 1, wherein: an observation door (9) is movably mounted on one side of the experiment cabin (2), and a door handle (10) is fixedly mounted at the bottom of the observation door (9).

6. The adjustable chemical experiment fume chamber of claim 1, wherein: displacement sensor (11) are fixedly installed on two sides of observation door (9), infrared sensor (12) are fixedly installed on the bottom of observation door (9), and surface wind speed sensor (13) is fixedly installed on one side of the top of observation door (9).

7. The adjustable chemical experiment fume chamber of claim 1, wherein: the bottom fixed mounting of face wind velocity transducer (13) has detector (16), the top fixed mounting of detector (16) has warning light (17), the bottom fixed mounting of detector (16) has bee calling organ (18), the rear end movable mounting of experiment cabin (2) inner wall has exhaust connecting pipe (14).