CN219955550U - Fresh air device for chemical laboratory - Google Patents

Abstract

The utility model discloses a fresh air device for a chemical laboratory, which comprises a box body, wherein a fresh air cavity and an air exhaust cavity are respectively arranged in the box body, the air exhaust cavity is communicated with the fresh air cavity through a communication hole, the air exhaust cavity is provided with an air exhaust port and an air exhaust port, an exhaust gas treatment chamber is arranged in the air exhaust cavity, one end of the exhaust gas treatment chamber is connected with the air exhaust port, one end of the exhaust gas treatment chamber connected with the air exhaust port is provided with a first fan assembly, the other end of the exhaust gas treatment chamber is respectively communicated with the air exhaust port and the communication hole through a first tee structure, a first switching air door is arranged in the first tee structure, the exhaust gas treatment assembly is arranged in the exhaust gas treatment chamber, the fresh air cavity is provided with an air inlet and a fresh air port, the fresh air cavity is internally provided with a second fan assembly, after the indoor air is sucked into the air exhaust cavity and is treated by the exhaust gas treatment assembly, the air in the air exhaust cavity can be selectively exhausted from the air exhaust port through the first switching air door in the first tee structure, or the fresh air cavity is introduced into the fresh air cavity, and the fresh air cavity can realize two functions of outdoor circulation and indoor circulation.

Description

Fresh air device for chemical laboratory

Technical Field

The utility model relates to the technical field of fresh air, in particular to a fresh air device for a chemical laboratory.

Background

Because various experiments are carried out in a chemical laboratory, various pungent odors and even harmful gases are mixed, and a fresh air device is usually arranged for ventilation at any time, however, the fresh air device in the prior art is often an exhaust channel and an intake channel, and can only carry out outdoor circulation, and when the fresh air device is started by cool or warm days, if an air conditioner is restarted to cool or heat the room, the efficiency of indoor refrigeration or heating is reduced due to the fact that the fresh air device discharges indoor air.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a fresh air device for a chemical laboratory.

In order to achieve the technical effects, the utility model adopts the following scheme:

the utility model provides a fresh air device that chemistry experiment room was used, includes the box, be equipped with the new trend chamber in the box respectively and exhaust the chamber, exhaust the chamber and pass through the intercommunicating pore with the new trend chamber intercommunication, exhaust the chamber and be equipped with waste gas port and air exit, exhaust the intracavity and be equipped with the exhaust-gas treatment room, waste gas port is connected to exhaust-gas treatment room one end, the one end that waste gas treatment room and waste gas port are connected is equipped with first fan subassembly, the other end of exhaust-gas treatment room communicates air exit and intercommunicating pore respectively through a first tee bend structure, be equipped with first switching damper in the tee bend structure, be equipped with exhaust-gas treatment subassembly in the exhaust-gas treatment room, the new trend chamber is equipped with air intake and new trend mouth, the new trend intracavity is equipped with second fan subassembly.

In a preferred embodiment, the exhaust treatment assembly comprises a plurality of activated carbon adsorption layers.

The preferred technical scheme, first tee bend structure includes that the cross-section is square communicating pipe, set up the vent with the communicating hole intercommunication on the lateral wall of one side of communicating pipe, be equipped with the first switching air door that is used for closed vent through first pivot articulated installation on the inner wall of one side of vent in the communicating pipe, its one end can support to on the communicating pipe inner wall of the opposite side with the vent after through rotating, first pivot stretches out the box and connects first rotating electrical machines.

The preferred technical scheme, be equipped with air inlet chamber and power chamber in the new trend intracavity, air inlet chamber and air intake and intercommunicating pore intercommunication, power chamber and fresh air mouth intercommunication, in second fan subassembly installation and the power chamber, first wind channel and second wind channel are connected respectively through a second tee bend structure to air inlet chamber and power chamber, be equipped with the second switching damper in the second tee bend structure, install refrigeration subassembly and heating subassembly respectively in first wind channel and the second wind channel, the tail end in first wind channel and second wind channel all communicates with the power chamber.

The preferred technical scheme, the second tee bend structure includes a first ventilation pipe, first wind channel and second wind channel are connected respectively at the both ends of first ventilation pipe, the middle part vertical intercommunication of first ventilation pipe is equipped with the second ventilation pipe, the cross-section of first ventilation pipe and second ventilation pipe all is square setting, keep away from on the inner wall of second ventilation pipe one side in the first ventilation pipe and articulate the second switching damper through the second pivot, the second switching damper stretches into in the second ventilation pipe, the second switching damper can be respectively with the relative both sides inner wall looks butt in the second ventilation pipe through rotating, the second pivot stretches out the box and connects second rotating electrical machines.

According to the preferred technical scheme, a plurality of filter screen layers are arranged at the air inlet.

Compared with the prior art, the beneficial effects are as follows:

the utility model has simple structure and convenient use, the fresh air cavity is communicated with the air exhaust cavity, indoor air is sucked into the air exhaust cavity and is treated by the waste gas treatment component, and the air in the air exhaust cavity can be selectively discharged from the air outlet or is introduced into the fresh air cavity through the first switching air door in the first tee joint structure, so that two functions of outdoor circulation and indoor circulation can be realized, and when the air conditioner is started for refrigerating or heating, the indoor circulation is started, and the efficiency of refrigerating or heating is not reduced.

Drawings

Fig. 1 is a schematic diagram of the structure of the present utility model.

Reference numerals: 1. a case; 2. an exhaust cavity; 3. a fresh air cavity; 4. a waste gas port; 5. an air outlet; 6. an air inlet; 7. a new wind gap; 8. an exhaust gas treatment chamber; 9. a first fan assembly; 10. an activated carbon adsorption layer; 11. a communicating pipe; 12. a vent; 13. a first rotating shaft; 14. a first switching damper; 15. an intake chamber; 16. a power chamber; 17. a second fan assembly; 18. a first ventilation pipe; 19. a second ventilation pipe; 20. a first air duct; 21. a refrigeration assembly; 22. a second air duct; 23. a heating assembly; 24. a second rotating shaft; 25. a second switching damper; 26. and a filter screen layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The utility model provides a fresh air device that chemistry experiment room was used, includes box 1, be equipped with fresh air chamber 3 and exhaust chamber 2 in the box 1 respectively, exhaust chamber 2 and fresh air chamber 3 pass through the intercommunicating pore intercommunication, exhaust chamber 2 is equipped with waste gas port 4 and air exit 5, be equipped with exhaust treatment room 8 in the exhaust chamber 2, waste gas port 4 is connected to waste gas treatment room 8 one end, the one end that exhaust treatment room 8 and waste gas port 4 are connected is equipped with first fan subassembly 9, the other end of exhaust treatment room 8 communicates air exit 5 and intercommunicating pore respectively through a first tee bend structure, be equipped with first switching damper 14 in the first tee bend structure, be equipped with exhaust treatment subassembly in the exhaust treatment room 8, fresh air chamber 3 is equipped with air intake 6 and fresh air port 7, be equipped with second fan subassembly 17 in the fresh air chamber 3.

In this scheme, inhale the intracavity air through first fan subassembly 9 and in the exhaust chamber 2 to after the exhaust treatment device in the exhaust treatment room 8 handles, the switching of rethread first switching air door 14 is selected to be discharged the air from air outlet 5, perhaps lets in the new trend chamber 3, and the second fan subassembly 17 in the new trend chamber 3 blows in the indoor with the air in the new trend chamber 3 through new wind gap 7.

In a preferred embodiment, the exhaust gas treatment component comprises a plurality of activated carbon adsorption layers 10.

The harmful substances in the exhaust gas and various odors are adsorbed by the activated carbon adsorption layer 10.

The preferred technical scheme, the first tee bend structure includes a cross-section is square communicating pipe 11, set up the vent 12 with the intercommunicating pore intercommunication on the lateral wall of one side of communicating pipe 11, be equipped with on the inner wall of one side of vent 12 in communicating pipe 11 through first pivot 13 articulated installation be used for sealing vent 12's first switching damper 14, on its one end can support to the communicating pipe 11 inner wall of one side opposite to vent 12 through rotating back of first switching damper 14, first pivot 13 stretches out box 1 and connects first rotating electrical machines.

After the first switching air door 14 covers the ventilation opening 12, the communicating pipe 11 is communicated with the waste gas treatment chamber 8 and the air outlet 5, and the air in the waste gas treatment chamber 8 is discharged outside; when the first switching air door 14 abuts against the inner wall of the communicating pipe 11 on the side opposite to the vent 12, the communicating pipe 11 communicates the exhaust gas treatment chamber 8 with the fresh air chamber 3, and introduces air in the exhaust gas treatment chamber 8 into the fresh air chamber 3.

The preferred technical scheme, be equipped with air inlet chamber 15 and power room 16 in the new trend chamber 3, air inlet chamber 15 and air intake 6 and intercommunicating pore intercommunication, power room 16 and fresh air mouth 7 intercommunication, in second fan subassembly 17 installs and power room 16, air inlet chamber 15 and power room 16 are connected first wind channel 20 and second wind channel 22 respectively through a second tee bend structure, be equipped with second switching damper 25 in the second tee bend structure, refrigeration subassembly 21 and heating subassembly 23 are installed respectively in first wind channel 20 and second wind channel 22, the tail end of first wind channel 20 and second wind channel 22 all communicates with power room 16.

The air in the air inlet chamber 15 is led into the first air duct 20 to be reduced or led into the second air duct 22 to be heated through the switching of the second switching air door 25; thus, the air blown into the room is cooled or heated and then blown into the room, and the room can be maintained at a relatively stable temperature.

The preferred technical scheme, the second tee bend structure includes a first ventilation pipe 18, first wind channel 20 and second wind channel 22 are connected respectively at the both ends of first ventilation pipe 18, the middle part vertical intercommunication of first ventilation pipe 18 is equipped with second ventilation pipe 19, the cross-section of first ventilation pipe 18 and second ventilation pipe 19 all is square setting, keep away from on the inner wall of second ventilation pipe 19 one side in the first ventilation pipe 18 through second pivot 24 articulated second switching damper 25, second switching damper 25 stretches into in the second ventilation pipe 19, second switching damper 25 can be respectively with the both sides inner wall looks butt of relative in the second ventilation pipe 19 through the rotation, second pivot 24 stretches out box 1 and connects the second rotating electrical machines.

The second switching damper 25 rotates so as to abut against two different inner walls of the second ventilation duct 19, thereby communicating the intake chamber 15 with the first air duct 20 or communicating the intake chamber 15 with the second air duct 22.

In a preferred technical scheme, a plurality of filter screen layers 26 are arranged at the air inlet 6.

Is used for filtering and dedusting the air sucked into the fresh air cavity 3 from the room.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (6)

1. The utility model provides a fresh air device for chemistry experiment room, its characterized in that, including box (1), be equipped with new trend chamber (3) and exhaust chamber (2) in box (1) respectively, exhaust chamber (2) and new trend chamber (3) are through the intercommunicating pore intercommunication, exhaust chamber (2) are equipped with waste gas port (4) and air exit (5), be equipped with exhaust-gas treatment room (8) in exhaust chamber (2), waste gas port (4) are connected to waste-gas treatment room (8) one end, the one end that waste-gas treatment room (8) are connected with waste gas port (4) is equipped with first fan subassembly (9), the other end of waste-gas treatment room (8) communicates air exit (5) and intercommunicating pore respectively through a first tee bend structure, be equipped with first switching damper (14) in the first tee bend structure, be equipped with exhaust-gas treatment subassembly in waste-gas treatment room (8), new trend chamber (3) are equipped with air intake (6) and air exit (7), be equipped with second fan subassembly (17) in new trend chamber (3).

2. A fresh air device for a chemical laboratory according to claim 1, wherein the exhaust gas treatment assembly comprises a plurality of activated carbon adsorption layers (10).

3. The fresh air device for the chemical laboratory according to claim 1, wherein the first three-way structure comprises a communicating pipe (11) with a square section, a vent hole (12) communicated with the communicating hole is formed in a side wall of the communicating pipe (11), a first switching air door (14) for closing the vent hole (12) is hinged on the inner wall of the side, provided with the vent hole (12), of the communicating pipe (11) through a first rotating shaft (13), one end of the first switching air door (14) can be abutted to the inner wall of the communicating pipe (11) on the side opposite to the vent hole (12) after rotating, and the first rotating shaft (13) extends out of the box body (1) to be connected with a first rotating motor.

4. Fresh air device for chemical laboratory according to claim 1, characterized in that the fresh air cavity (3) is internally provided with an air inlet chamber (15) and a power chamber (16), the air inlet chamber (15) is communicated with the air inlet (6) and the communication hole, the power chamber (16) is communicated with the fresh air port (7), the second fan assembly (17) is arranged in the power chamber (16), the air inlet chamber (15) and the power chamber (16) are respectively connected with the first air channel (20) and the second air channel (22) through a second three-way structure, the second three-way structure is internally provided with a second switching air door (25), the first air channel (20) and the second air channel (22) are respectively provided with a refrigerating assembly (21) and a heating assembly (23), and tail ends of the first air channel (20) and the second air channel (22) are respectively communicated with the power chamber (16).

5. The fresh air device for the chemical laboratory according to claim 4, wherein the second three-way structure comprises a first ventilation pipe (18), two ends of the first ventilation pipe (18) are respectively connected with a first air duct (20) and a second air duct (22), the middle part of the first ventilation pipe (18) is vertically communicated with a second ventilation pipe (19), the cross sections of the first ventilation pipe (18) and the second ventilation pipe (19) are square, a second switching air door (25) is hinged on the inner wall, far away from one side of the second ventilation pipe (19), of the first ventilation pipe (18) through a second rotating shaft (24), the second switching air door (25) stretches into the second ventilation pipe (19), the second switching air door (25) can be respectively abutted against the inner walls of two opposite sides of the second ventilation pipe (19) through rotation, and the second rotating shaft (24) stretches out of the box (1) to be connected with a second rotating motor.

6. Fresh air device for chemical laboratories according to claim 1, characterized in that the air intake (6) is provided with a number of filter layers (26).