CN217094916U - Laboratory fume hood with infrared alarm function - Google Patents
Laboratory fume hood with infrared alarm function Download PDFInfo
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- CN217094916U CN217094916U CN202221033255.4U CN202221033255U CN217094916U CN 217094916 U CN217094916 U CN 217094916U CN 202221033255 U CN202221033255 U CN 202221033255U CN 217094916 U CN217094916 U CN 217094916U
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Abstract
The utility model discloses a laboratory fume hood with infrared alarming function belongs to medical intermediate technical field. Laboratory fume hood with infrared alarming function, including the fume hood body, still include: the laboratory table is fixedly connected in the fume hood body, wherein the interior of the fume hood body is divided into a laboratory cavity and a storage cavity by the laboratory table; the utility model discloses an infrared gas detector, electric telescopic handle, flexible pipe, the master controller, the setting of fan, can be according to harmful substance's in the gas concentration, nimble change ventilation rate's size and the height of draft hood, not only can be in order to reduce the power consumption cost, distance between draft hood and the flue gas source can also be controlled simultaneously, thereby be convenient for walk away the quick absorption of flue gas, prevent that harmful gas from causing the injury to the staff, when harmful substance's concentration surpasses the specified value in the gas simultaneously, still can send out the police dispatch newspaper, thereby suggestion operating personnel keeps away from fast, the safety protection nature of this fume hood has been improved effectively.
Description
Technical Field
The utility model relates to a medical intermediate technical field especially relates to laboratory fume hood with infrared alarming function.
Background
The fume hood is one of important safety devices in a laboratory, is used for reducing contact between an experimenter and harmful gases, is a primary barrier for protecting personnel from being damaged by toxic chemical smoke, and can be used as an important safety back-up device for effectively discharging the harmful gases when chemical smoke, dust and the toxic gases are generated due to failure of a chemical experiment process so as to protect workers and the laboratory environment.
But current fume hood is mostly simple mechanical structure, and the ventilation volume of during operation fan and the height of ventilation pipe can not carry out nimble regulation along with harmful gas concentration's size, have not only wasted the electric energy, when the harmful flue gas that produces is more moreover, be not convenient for carry out timely siphoning away to it to lead to harmful gas to waft in the laboratory, cause the injury to operating personnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that provides in the above-mentioned background art, and the laboratory fume hood who has infrared alarming function who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
laboratory fume hood with infrared alarming function, including the fume hood body, still include: the laboratory table is fixedly connected in the fume hood body, wherein the interior of the fume hood body is divided into a laboratory cavity and a storage cavity by the laboratory table; the air box is fixedly connected to one side of the upper end of the fume hood body; the fan is arranged in the air box; the ventilation pipe is fixedly connected to the air inlet of the air box, and one end, far away from the air box, of the ventilation pipe extends downwards into the fume hood body; the telescopic pipe is fixedly connected to the air inlet of the ventilation pipe; the ventilation hood is fixedly connected to the lower end of the extension tube; the electric telescopic rods are symmetrically and fixedly connected to two sides of the fume hood body close to the fume hood, and telescopic ends of the electric telescopic rods are fixedly connected with the fume hood; the infrared gas detector is fixedly connected in the ventilation hood through a support rod; the main controller is installed on the fume hood body and electrically connected with the fan, the electric telescopic rod and the infrared gas detector.
For the convenience of put out a fire fast, preferably, the inert gas storage bottle has been placed in the storage intracavity of fume cupboard body, the storage chamber is close to one side fixedly connected with air pump of inert gas storage bottle, the experimental intracavity of fume cupboard body is close to the jet-propelled dish of one side fixedly connected with of air pump, the air inlet of air pump is connected with the gas outlet of inert gas storage bottle through first trachea, the gas outlet of air pump is connected with the air inlet of jet-propelled dish through the second trachea.
In order to facilitate the improvement of the sealing effect of the experiment cavity, furthermore, the fume hood body is close to the position fixedly connected with round sealing strip of the opening of the experiment cavity, and the door plate on the experiment cavity is sealed and attached to the side wall of the fume hood body through the sealing strip.
In order to facilitate filtering and purifying treatment of harmful gas generated in an experiment, preferably, a filter plate and an activated carbon plate are sequentially installed in the air box from one end of the fan to one end of the air outlet.
In order to facilitate quick replacement or cleaning of the activated carbon plate and the filter plate, the activated carbon plate and the filter plate are vertically inserted into the air box, and the upper ends of the activated carbon plate and the filter plate are fixedly connected with pull plates.
In order to improve the sealing performance between the pulling plate and the air box and prevent unfiltered air from flowing out of the gap, furthermore, sealing gaskets are fixedly connected at one ends of the activated carbon plate and the filter plate, which are close to the pulling plate, and the pulling plate is in sealing connection with the air box through the sealing gaskets.
Compared with the prior art, the utility model provides a laboratory fume hood with infrared alarming function possesses following beneficial effect:
1. the laboratory fume hood with the infrared alarm function is characterized in that through the arrangement of an infrared gas detector, an electric telescopic rod, a telescopic pipe, a main controller and a fan, the ventilation speed can be flexibly changed according to the concentration of harmful substances in the gas, thereby not only improving the ventilation efficiency, but also reducing the electricity consumption cost and effectively improving the practicability of the fume hood, meanwhile, the distance between the ventilation hood and the flue gas source can be controlled, thereby being convenient for rapidly absorbing the flue gas, preventing harmful gas from flying into a laboratory, the infrared gas detector can give out an alarm when the concentration of harmful substances in the gas exceeds a specified value, therefore, the fume hood prompts an operator to quickly keep away from the fume hood, and protective measures are taken, so that the safety protection performance of the fume hood is effectively improved, the practicability is high, and the fume hood is suitable for popularization and use.
Drawings
Fig. 1 is a front view of a laboratory fume hood with an infrared alarm function according to the present invention;
fig. 2 is a schematic structural view of a laboratory fume hood with an infrared alarm function according to the present invention;
fig. 3 is a schematic view of a part a of the structure of the laboratory fume hood with infrared alarm function shown in fig. 1 of the present invention.
In the figure: 1. a fume hood body; 2. a laboratory bench; 3. a ventilation hood; 4. an infrared gas detector; 5. an electric telescopic rod; 6. a telescopic pipe; 7. a master controller; 8. an air box; 9. a fan; 10. a vent pipe; 11. an activated carbon plate; 12. filtering the plate; 13. an inert gas storage bottle; 14. an air pump; 15. an air jet disc; 16. a sealing strip; 17. pulling a plate; 18. and a gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like 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, and 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 therefore, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1-3, a laboratory fume hood with infrared alarm function includes a fume hood body 1, and further includes: the experiment table 2 is fixedly connected in the fume hood body 1, wherein the interior of the fume hood body 1 is divided into an experiment cavity and a storage cavity by the experiment table 2; the air box 8 is fixedly connected to one side of the upper end of the fume hood body 1; the fan 9 is arranged in the air box 8; the ventilation pipe 10 is fixedly connected to an air inlet of the air box 8, and one end, far away from the air box 8, of the ventilation pipe extends downwards into the fume hood body 1; the telescopic pipe 6 is fixedly connected to an air inlet of the ventilation pipe 10; the ventilation hood 3 is fixedly connected to the lower end of the extension tube 6; the electric telescopic rods 5 are symmetrically and fixedly connected to two sides, close to the ventilation hood 3, of the fume hood body 1, and the telescopic ends are fixedly connected with the ventilation hood 3; the infrared gas detector 4 is fixedly connected in the ventilation hood 3 through a support rod; the main controller 7 is installed on the fume hood body 1 and is electrically connected with the fan 9, the electric telescopic rod 5 and the infrared gas detector 4.
When the fume hood is used, an operator firstly transports the fume hood into a laboratory, then an exhaust port of the air box 8 is connected with external purifying equipment through an exhaust pipe, then power on electric equipment in the fume hood is connected, and then the fume hood can be put into use, when harmful gas is generated in an experiment, the infrared gas detector 4 can detect the generation of the harmful gas, wherein when the infrared gas detector 4 works, the infrared gas detector detects the concentration of the gas by utilizing an infrared principle, an infrared absorption type is mainly used, a core component is an infrared sensor, the infrared sensor utilizes different gases to have different infrared wave absorption degrees, the concentration of the harmful gas in the air can be detected by measuring infrared absorption wavelengths, then the infrared gas detector 4 transmits the detected data to the master controller 7, and then the master controller 7 controls the fan 9 to work, thereby generating suction force to suck out harmful gas and preventing workers from sucking the harmful gas into the body, the health is affected, when the infrared gas detector 4 detects that the concentration of harmful substances in the gas exceeds the specified value, the main controller 7 controls the fan 9 to increase the rotating speed, thereby increasing the suction force, then the electric telescopic rod 5 is controlled to drive the ventilation hood 3 to move downwards, so that the distance between the ventilation hood 3 and a gas source is shortened, the ventilation hood is convenient to suck rapidly, harmful gas is prevented from flying into a laboratory, the operator is hurt, and when the concentration of harmful substances in the gas exceeds the specified value, the infrared gas detector 4 will give an alarm, therefore, the fume hood prompts an operator to keep away from the fume hood, and protective measures are taken, so that the safety protection performance of the fume hood is effectively improved, the practicability is high, and the fume hood is suitable for popularization and use.
Example 2:
referring to fig. 1-3, a laboratory fume hood with infrared alarm function, substantially the same as in example 1, further comprising: placing inert gas storage bottle 13 in the storage cavity of fume hood body 1, one side fixedly connected with air pump 14 that the storage cavity is close to inert gas storage bottle 13, one side fixedly connected with jet disc 15 that is close to air pump 14 in the experimental cavity of fume hood body 1, the air inlet of air pump 14 is connected with the gas outlet of inert gas storage bottle 13 through first trachea, the gas outlet of air pump 14 is connected with the air inlet of jet disc 15 through second trachea, when the staff is doing the experiment and is open fire appears, at this moment, air pump 14 can be started, make air pump 14 take out the inert gas in inert gas storage bottle 13 through first trachea, then in rethread second trachea carries jet disc 15, at last spout through jet disc 15, thereby utilize inert gas to dilute the concentration of the oxygen in the combustion reaction zone, greatly reduce the contact of combustible substance and oxygen, reduce the speed of combustion reaction, thereby achieving the effects of inhibiting combustion and extinguishing fire and improving the safety of the whole fume hood;
fume hood body 1 is close to laboratory cave open-ended position fixedly connected with round sealing strip 16, pastes through sealing strip 16 is sealed mutually between the lateral wall of door plant on the laboratory cave and fume hood body 1, through the setting of sealing strip 16, when closing the door plant, can play sealed effect to the laboratory cave to prevent that outside air from entering into the laboratory cave, influence inert gas's fire extinguishing effect, the effectual leakproofness that improves the laboratory cave.
Example 3:
referring to fig. 1-3, a laboratory fume hood with infrared alarm function, substantially the same as in example 1, further comprising: a filter plate 12 and an activated carbon plate 11 are sequentially arranged in the air box 8 from one end of the fan 9 to one end of the air outlet, and harmful gas generated in an experiment can be filtered and purified through the arrangement of the activated carbon plate 11 and the filter plate 12, so that the harmful gas is prevented from scattering to the outside to influence the environment, and the environmental protection of the fume hood is effectively improved;
the activated carbon plate 11 and the filter plate 12 are vertically inserted into the air box 8, the upper ends of the activated carbon plate 11 and the filter plate 12 are fixedly connected with a pulling plate 17, and through the arrangement of the pulling plate 17, when the activated carbon plate 11 and the filter plate 12 need to be replaced, a worker can take out the activated carbon plate 11 or the filter plate 12 from the air box 8 only by manually pulling the pulling plate 17 upwards, so that the activated carbon plate 11 and the filter plate 12 can be replaced or cleaned quickly;
the equal fixedly connected with of one end that activated carbon plate 11, filter plate 12 are close to arm-tie 17 seals up 18, through sealed 18 sealing connection between arm-tie 17 and the bellows 8, through sealed setting up of packing 18, can improve the leakproofness between arm-tie 17 and the bellows 8, prevents that unfiltered gas from wafting out from the gap to cause the injury to environment and staff.
It should be noted that the main controller 7 in this patent document may adopt a conventional known device such as a computer for control, and it should be noted that in the above embodiment, the electric telescopic rod 5 may adopt, but is not limited to, an electric lifting rod with a model number of YNT-03, the air pump 14 may adopt, but is not limited to, a suction pump with a model number of YD-3500H, the infrared gas detector 4 may adopt, but is not limited to, an infrared gas detection alarm with a model number of FGM-1200S, and the fan 9 may adopt a variable speed aspirator, and all are known devices commonly in the market.
The utility model discloses an infrared gas detector 4, electric telescopic handle 5, flexible pipe 6, master controller 7, the setting of fan 9, can be according to the concentration of harmful substance in the gas, nimble change ventilation rate's size, not only can improve ventilation efficiency, can also reduce the power consumption cost, the effectual practicality that improves this fume hood, distance between simultaneously can also control cowl 3 and the flue gas source, thereby be convenient for walk away the quick absorption of flue gas, prevent that harmful gas from wafting into the laboratory, cause the injury to the staff, when harmful substance's concentration exceeds the specified value in the gas simultaneously, infrared gas detector 4 just can send out the police dispatch newspaper, thereby indicate the staff to keep away from this fume hood fast, and done safeguard procedures, the effectual safety protection who improves this fume hood, the practicality is higher, be suitable for using widely.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. Laboratory fume hood with infrared alarming function, including fume hood body (1), its characterized in that still includes: the laboratory table (2) is fixedly connected in the fume hood body (1), wherein the interior of the fume hood body (1) is divided into a laboratory cavity and a storage cavity by the laboratory table (2); the air box (8) is fixedly connected to one side of the upper end of the fume hood body (1); the fan (9) is arranged in the air box (8); the ventilation pipe (10) is fixedly connected to an air inlet of the air box (8), and one end, far away from the air box (8), of the ventilation pipe extends downwards into the ventilation cabinet body (1); the telescopic pipe (6) is fixedly connected to an air inlet of the ventilating pipe (10); the ventilation hood (3) is fixedly connected to the lower end of the extension tube (6); the electric telescopic rods (5) are symmetrically and fixedly connected to two sides, close to the ventilation hood (3), of the fume hood body (1), and the telescopic ends are fixedly connected with the ventilation hood (3); the infrared gas detector (4) is fixedly connected in the ventilation hood (3) through a support rod; the main controller (7) is installed on the fume hood body (1) and is electrically connected with the fan (9), the electric telescopic rod (5) and the infrared gas detector (4).
2. The laboratory fume hood with the infrared alarm function according to claim 1, wherein an inert gas storage bottle (13) is placed in a storage cavity of the fume hood body (1), an air pump (14) is fixedly connected to one side of the storage cavity close to the inert gas storage bottle (13), an air injection disc (15) is fixedly connected to one side of the experimental cavity of the fume hood body (1) close to the air pump (14), an air inlet of the air pump (14) is connected with an air outlet of the inert gas storage bottle (13) through a first air pipe, and an air outlet of the air pump (14) is connected with an air inlet of the air injection disc (15) through a second air pipe.
3. The laboratory fume hood with the infrared alarm function according to claim 2, characterized in that a circle of sealing strip (16) is fixedly connected to the position of the fume hood body (1) close to the opening of the laboratory cavity, and the door panel on the laboratory cavity is hermetically attached to the side wall of the fume hood body (1) through the sealing strip (16).
4. The laboratory fume hood with infrared alarm function according to claim 1, characterized in that a filter plate (12) and an activated carbon plate (11) are sequentially installed in the air box (8) from one end of the fan (9) to one end of the air outlet.
5. The laboratory fume hood with the infrared alarm function according to claim 4, wherein the activated carbon plate (11) and the filter plate (12) are vertically inserted into the air box (8), and the upper ends of the activated carbon plate (11) and the filter plate (12) are fixedly connected with a pulling plate (17).
6. The laboratory fume hood with the infrared alarm function according to claim 5, characterized in that the activated carbon plate (11) and the filter plate (12) are fixedly connected with sealing gaskets (18) at one ends close to the pulling plate (17), and the pulling plate (17) is hermetically connected with the air box (8) through the sealing gaskets (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221033255.4U CN217094916U (en) | 2022-04-30 | 2022-04-30 | Laboratory fume hood with infrared alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221033255.4U CN217094916U (en) | 2022-04-30 | 2022-04-30 | Laboratory fume hood with infrared alarm function |
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| Publication Number | Publication Date |
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| CN217094916U true CN217094916U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221033255.4U Active CN217094916U (en) | 2022-04-30 | 2022-04-30 | Laboratory fume hood with infrared alarm function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318787A (en) * | 2022-08-15 | 2022-11-11 | 华东师范大学 | Pre-condensation deacidification device for fume hood |
| CN117259375A (en) * | 2023-11-21 | 2023-12-22 | 广东汇绿实验室设备科技有限公司 | Laboratory ventilation equipment with adjustable inlet and outlet air quantity |
-
2022
- 2022-04-30 CN CN202221033255.4U patent/CN217094916U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115318787A (en) * | 2022-08-15 | 2022-11-11 | 华东师范大学 | Pre-condensation deacidification device for fume hood |
| CN117259375A (en) * | 2023-11-21 | 2023-12-22 | 广东汇绿实验室设备科技有限公司 | Laboratory ventilation equipment with adjustable inlet and outlet air quantity |
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