CN216880949U

CN216880949U - Lower air supply energy-saving type ventilation cabinet

Info

Publication number: CN216880949U
Application number: CN202220369641.4U
Authority: CN
Inventors: 李光耀; 李军
Original assignee: Jinan Jinhuapeng Technology Co ltd
Current assignee: Jinan Jinhuapeng Technology Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-05
Anticipated expiration: 2032-02-23

Abstract

The utility model belongs to the technical field of application of experimental equipment, and particularly relates to a lower air supply energy-saving type fume hood. Including the fume chamber body, its characterized in that, this internal upper and lower experiment chamber and the equipment chamber of being provided with of fume chamber, wherein, be provided with the blast pipe in the experiment chamber, the blast pipe stretches into the equipment intracavity and sets up, the equipment intracavity is provided with the air-out case with the blast pipe intercommunication, the top of going out the bellows sets up with the bottom parallel and level in experiment chamber, the top of going out the bellows is provided with the air outlet, the one end and the outdoor intercommunication of going out the bellows are kept away from to the blast pipe, be provided with the fan on the blast pipe. The utility model improves the structure of the existing fume hood, so that the fume hood supplies air from the outside, thereby solving the problem of extracting indoor air, further avoiding the problem of long-term opening of an indoor air conditioning system caused by extracting a large amount of indoor air, further achieving the purposes of energy conservation and emission reduction, and meanwhile, the utility model has simple structure and remarkable implementation effect, and is suitable for large-scale popularization and use.

Description

Lower air supply energy-saving type ventilation cabinet

Technical Field

The utility model belongs to the technical field of application of experimental equipment, and particularly relates to a lower air supply energy-saving type fume hood.

Background

Fume hoods, also known as fume hoods or fume hoods, are large devices used in laboratories, especially chemical laboratories. The purpose is to reduce the contact of experimenters and harmful gases. Complete isolation requires the use of a glove box. Fume hoods are primary barriers to protect personnel from toxic chemical fumes. The device can be used as an important safety backup device, such as a device which can effectively discharge harmful gas when chemical smoke, dust and toxic gas are generated during the failure of a chemical experiment process, and protect the environment of workers and a laboratory.

Most of the existing fume hoods are transparent doors (mostly glass) which can move up and down in the middle of the front part, and the opening height is generally 100-600 mm. The working face for the experiment is behind the door, and the lamp that has the safety cover on the connection that needs of experiments such as water pipe, sewer, power, vacuum pump, gas circuit pipeline is lighted. The air is pumped out by an exhaust fan at the front upper part in the cabinet or is guided to other places through pipelines.

Like this, the required air mainly comes from inside the laboratory during fume hood experiment, in some constant temperature laboratories or hot summer, chilly winter, all need open air conditioning system in its experiment room, and the fume hood extracts indoor air and uses, and this just makes the long-term opening of laboratory air conditioning system needs to ensure the temperature in the laboratory, and this also makes power consumption too big.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem that the fume hood extracts the air in the laboratory, the utility model provides the lower air supply energy-saving fume hood which is reasonable in design, simple in structure, low in cost and capable of avoiding the extraction of the air in the laboratory.

In order to achieve the purpose, the utility model adopts the technical scheme that the lower air supply energy-saving type ventilation cabinet comprises a ventilation cabinet body, an experiment cavity and an equipment cavity are arranged in the ventilation cabinet body from top to bottom, an air supply pipe is arranged in the experiment cavity and extends into the equipment cavity, an air outlet box communicated with the air supply pipe is arranged in the equipment cavity, the top of the air outlet box is arranged in parallel with the bottom of the experiment cavity, an air outlet is arranged at the top of the air outlet box, one end, far away from the air outlet box, of the air supply pipe is communicated with the outside, and a fan is arranged on the air supply pipe.

Preferably, the air outlet box is arranged in a cuboid shape, the air outlet box is arranged close to the front end of the experiment cavity, and the length of the air outlet box is consistent with that of the experiment cavity or is smaller than 3-5 cm of the length of the experiment cavity.

Preferably, the wall of the experimental cavity comprises an outer wall, an inner wall and heat insulation cotton arranged between the outer wall and the inner wall.

Preferably, the air outlets are uniformly distributed at the top of the air outlet box.

Preferably, the air supply pipe is arranged on one side of the experimental cavity.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model provides a lower air supply energy-saving type ventilation cabinet, which supplies air from the outside by improving the structure of the existing ventilation cabinet, so that the problem of extracting indoor air is solved, the problem of long-term starting of an indoor air conditioning system caused by extracting a large amount of indoor air is further avoided, the purposes of energy conservation and emission reduction are further achieved, and meanwhile, the lower air supply energy-saving type ventilation cabinet is simple in structure, remarkable in implementation effect and suitable for large-scale popularization and use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a side view of a lower blowing energy-saving type fume hood provided in embodiment 1;

FIG. 2 is a cross-sectional view of the walls of the laboratory chamber provided in example 1;

FIG. 3 is a schematic structural view of an air outlet box according to example 1;

in the above figures, 1, a fume hood body; 11. a laboratory cavity; 12. an equipment chamber; 13. an exhaust port; 2. an air supply pipe; 3. an air outlet box; 31. an air outlet; 4. a chamber wall; 41. an outer wall; 42. an inner wall; 43. heat preservation cotton; 5. a baffle.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 3, this embodiment aims at solving the problem that the load of a laboratory air conditioning system is increased due to indoor heat or refrigerant consumed by a conventional fume hood in a constant temperature laboratory or in a season in which an air conditioner needs to be turned on, and for this reason, the lower air supply energy-saving fume hood provided by this embodiment includes a fume hood body 1, the fume hood body 1 provided by this embodiment has the same structure as other structures of the conventional fume hood, in this embodiment, an experiment cavity 11 and an equipment cavity 12 are vertically arranged in the fume hood body 1, and the main purpose of dividing the fume hood body into the experiment cavity 11 and the equipment cavity 12 is to reduce the air introduction amount, so that the air supply amount can be reduced, and thus, the energy consumption can be reduced as much as possible.

Be provided with blast pipe 2 in experiment chamber 11, in order to avoid influencing the experiment, blast pipe 2 sets up in one side of experiment chamber 11 and blast pipe 2 stretches into the equipment intracavity 12 and sets up, be provided with the air-out case 3 with 2 intercommunications of blast pipe in equipment intracavity 12, in equipment intracavity 12 is sent to in order to make the interior wind of air-out case 3, the top of air-out case 3 and the bottom parallel and level setting of experiment chamber 11, be used for placing out bellows 3 in the bottom fluting hole of experiment chamber 11 promptly, and simultaneously, be provided with air outlet 31 at the top of air-out case 3, the one end and the outdoor intercommunication of bellows 3 are kept away from to blast pipe 2, be provided with the fan on blast pipe 2. In this embodiment, it is considered that a part of the air supply pipe 2 is exposed in the laboratory, and for this reason, the air supply pipe 2 is a hollow wall pipe, so that the energy consumption generated by the air supply pipe 2 can be effectively reduced.

In order to make the air supply uniformly distributed in the experiment cavity 11 to the greatest extent possible, in this embodiment, the air outlet box 3 is arranged in a rectangular parallelepiped shape, and the air outlet box 3 is arranged near the front end of the experiment cavity 11 (the air draft is generally arranged at the rear end of the experiment cavity 11, if the air draft is arranged at the rear end, the air supply is directly drawn away), and the length of the air outlet box 3 is the same as that of the experiment cavity 11 or is less than 3-5 cm of the length of the experiment cavity 11. Simultaneously, air outlet 31 evenly distributed is at the top of air-out case 3, and in this embodiment, air outlet 31 is the slot-like setting, and its long limit direction interval along air-out case 3 sets up, like this, can effectively realize the equipartition of air supply.

In order to further reduce the energy consumption, in the present embodiment, the chamber wall 4 of the experimental chamber 11 includes an outer wall 41, an inner wall 42, and an insulating cotton 43 disposed between the outer wall 41 and the inner wall 42. This provides insulation of the test chamber 11 from the outside, reducing heat transfer and thus ensuring that the temperature in the chamber is at a minimum. Of course, in this embodiment, the glass used at the front end of the glass is vacuum glass to ensure temperature isolation.

Can equipartition in laboratory cavity 11 in order to further make the air supply, rear end at laboratory cavity 11 is provided with guide plate 5, guide plate 5 unsettled setting is in laboratory cavity 11's rear end, and simultaneously, rear end at guide plate 5 is provided with the baffle, the top of baffle is connected with laboratory cavity 11's top, its bottom sets up with laboratory cavity 11's bottom interval, top in the space that baffle and laboratory cavity 11 formed is provided with the exhaust hole, be used for the gas in the exhaust laboratory cavity 11, the exhaust hole also with outdoor intercommunication. Like this, because go out bellows 3 air supply upwards, and guide plate 5's setting makes the air current upwards can the downstream just can walk around guide plate 5, like this, the even distribution of air current meeting further reaches the purpose of equipartition in experimental chamber 11.

Through foretell setting, the effectual problem of having solved current fume chamber and consuming air conditioning system energy, and then reach energy-conserving purpose.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides an energy-saving fume chamber of supplying air down, includes the fume chamber body, its characterized in that, this internal upper and lower experiment chamber and the equipment chamber of being provided with of fume chamber, wherein, be provided with the blast pipe in the experiment chamber, the blast pipe stretches into the equipment intracavity and sets up, the equipment intracavity is provided with the air-out case with the blast pipe intercommunication, the top of going out the bellows sets up with the bottom parallel and level in experiment chamber, the top of going out the bellows is provided with the air outlet, the one end and the outdoor intercommunication of going out the bellows are kept away from to the blast pipe, be provided with the fan on the blast pipe.

2. The lower air supply energy-saving type ventilation cabinet according to claim 1, wherein the air outlet box is arranged in a rectangular shape, the air outlet box is arranged close to the front end of the experimental cavity, and the length of the air outlet box is consistent with that of the experimental cavity or is less than 3-5 cm of the length of the experimental cavity.

3. The under-blowing energy-saving fume hood according to claim 2, wherein the walls of the experimental chamber comprise an outer wall, an inner wall and insulation cotton arranged between the outer wall and the inner wall.

4. The under-blowing energy-saving fumehood according to claim 3 wherein said air outlets are evenly distributed at the top of the air-out box.

5. The under-draft energy-saving fumehood according to claim 4 wherein said blower tube is disposed to one side of the laboratory chamber.