CN218574559U - Ventilation cabinet with air supplement function - Google Patents
Ventilation cabinet with air supplement function Download PDFInfo
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- CN218574559U CN218574559U CN202223058488.2U CN202223058488U CN218574559U CN 218574559 U CN218574559 U CN 218574559U CN 202223058488 U CN202223058488 U CN 202223058488U CN 218574559 U CN218574559 U CN 218574559U
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- static pressure
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Abstract
A ventilation cabinet with air supplement comprises an experiment cabinet body and a storage cabinet body arranged below the experiment cabinet body, wherein a lower air supplement mechanism is arranged at the bottom of the experiment cabinet body, and an upper air supplement mechanism is arranged at the top of the experiment cabinet body; the upper air supplementing mechanism comprises a strip-shaped air supplementing static pressure box, a flow equalizing filter screen arranged at an air outlet at the bottom of the air supplementing static pressure box and an air direction adjusting assembly arranged at an air outlet of the flow equalizing filter screen. The utility model discloses the principle: the wind supplementing static pressure box can change partial dynamic pressure into static pressure to blow wind farther, reduce noise and uniformly distribute wind quantity; the air quantity can be uniformly distributed by arranging a flow equalizing filter screen at the air outlet of the air supplementing static pressure box; the air outlet of the flow equalizing filter screen is provided with an air direction adjusting component, so that the direction of air supplement can be adjusted according to the environment and the self requirement.
Description
Technical Field
The utility model belongs to the technical field of the experimental facilities and specifically relates to a fume chamber of area benefit wind.
Background
A fumehood can be generally described as a ventilated workspace for capturing, containing, and removing exhaust gases, harmful gases, and particulate matter. Most of the conventional fume hoods adopt a large amount of ambient air fed into a working cavity of the fume hood from a front opening of the fume hood, and meanwhile, a high-power fan is used for exhausting air in the working cavity to accommodate and treat harmful substances in the air. Under the design concept of the conventional hood, the higher the amount of air fed from the front opening, the more effective the hood has on the control and discharge functions of harmful substances in the air, and therefore it is necessary to supplement a large amount of air to a space using the hood, such as a laboratory, through the heating, ventilating and air conditioning system of a building to replace the ambient air fed into the hood from the front opening. Since the air to be supplied to the laboratory is part of the ambient air supplied to the laboratory, it must be treated to the same degree of ambient air to ensure the comfort and safety of the laboratory working environment, and therefore the use of conventional fume hoods generally results in a great energy consumption of the building in which the laboratory is located, etc. In addition, unpredictable and inconsistent air flow patterns, such as swirling air patterns near the exhaust and front openings, can often occur. In this case, no matter what the speed of the air fed from the front opening is, the air system in the working chamber, if there is turbulence and vortex, will cause the risk of air overflow in the working chamber, posing a threat to the health and safety of the experimenters. Therefore, new fume hood designs and operating techniques are highly desirable to reduce energy consumption and to reduce the risk of flooding of the working chamber with hazardous materials.
But the reducible energy consumption of mend wind system and reduce the overflow risk of harmful substance in the working chamber, present mend wind system and generally increase the structure of mending wind at the top and the bottom of fume chamber, for example chinese patent publication No. CN106140769A can reduce the air conditioner energy consumption, restrain the overflow of harmful substance in the working chamber, and installation cost is low and the fume chamber that the uniformity of product quality is high, include: a cabinet body, wherein the inner cavity of the cabinet body forms a working cavity, and the front wall of the cabinet body is provided with a front opening which is opened to the indoor environment; the air supplementing system is connected with an air supplementing channel of the building and used for supplementing air to the working cavity; and the exhaust system is connected with an exhaust channel of a building, and exhausts the air entering the working cavity through the front opening and the air entering the working cavity through the air supplementing system from the working cavity, the air supplementing system is respectively provided with at least one air supplementing opening at the upper part and the lower part of the cabinet body, the air supplementing opening supplies air towards the inside of the working cavity, a top module is arranged above the cabinet body, an air supplementing fan and an air supplementing valve for the air supplementing system and an exhaust fan and an exhaust valve for the exhaust system are arranged in the top module, and the air supplementing fan and the air supplementing valve are connected with the air supplementing channels of the air supplementing openings. The air outlet of the air supplementing system is a fixed air outlet, and once the air duct is designed, the air outlet direction of the air supplementing system is determined, and the air outlet direction can not be adjusted according to application scenes or self requirements.
Disclosure of Invention
The utility model aims to solve the technical problem that a fume chamber of area benefit wind is provided, goes up the air-out of benefit wind even, and the noise is little, and can adjust the orientation of going up the benefit wind air outlet at will.
In order to solve the technical problem, the technical scheme of the utility model is that: a ventilation cabinet with air supplement comprises an experiment cabinet body and a storage cabinet body arranged below the experiment cabinet body, wherein a lower air supplement mechanism is arranged at the bottom of the experiment cabinet body, and an upper air supplement mechanism is arranged at the top of the experiment cabinet body; the upper air supplementing mechanism comprises a strip-shaped air supplementing static pressure box, a flow equalizing filter screen arranged at an air outlet at the bottom of the air supplementing static pressure box and an air direction adjusting assembly arranged at an air outlet of the flow equalizing filter screen. The utility model discloses the principle: the wind supplementing static pressure box can change partial dynamic pressure into static pressure to blow wind farther, reduce noise and uniformly distribute wind quantity; the air quantity can be uniformly distributed by arranging a flow equalizing filter screen at the air outlet of the air supplementing static pressure box; the air outlet of the flow equalizing filter screen is provided with an air direction adjusting component, so that the direction of air supplement can be adjusted according to the environment and the self requirement.
As an improvement, air inlets are formed in two ends of the air supplementing static pressure box.
As an improvement, the wind direction adjusting component is a universal wind direction adjusting component.
As an improvement, the lower air supplement mechanism comprises an air supplement cover and a lower air supplement channel, and the output end of the air supplement cover is connected with the lower air supplement channel.
As an improvement, the air supplementing static pressure box and the air supplementing cover share an air supplementing power facility.
Compared with the prior art, the utility model the beneficial effect who brings is:
the wind supplementing static pressure box can change partial dynamic pressure into static pressure to blow wind farther, reduce noise and uniformly distribute wind quantity; the air quantity can be uniformly distributed by arranging a flow equalizing filter screen at the air outlet of the air supplementing static pressure box; the wind direction adjusting assembly is arranged at the air outlet of the flow equalizing filter screen, and the direction of air supplement can be adjusted according to the environment and the self requirement.
Drawings
FIG. 1 is a side schematic view of a fumehood.
Fig. 2 is a front view of the upper air supplement mechanism.
Fig. 3 is a side view of the upper air supply mechanism.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, a ventilation cabinet with air supplement function comprises an experiment cabinet body 1, a storage cabinet body 2 arranged below the experiment cabinet body 1, and an air supplement system. The experiment cabinet body 1 comprises a test bed, a glass door positioned on the front side, a back plate and a guide plate positioned on the back side and side plates positioned on two sides. The air supply system comprises a lower air supply mechanism 3 arranged at the bottom of the experiment cabinet body 1 and an upper air supply mechanism 4 arranged at the top of the experiment cabinet body 1, wherein the upper air supply mechanism 4 and the lower air supply mechanism 3 are oppositely arranged and are arranged at the opening of the experiment cabinet body 1. As shown in fig. 2 and 3, the upper air supplement mechanism 4 includes a strip-shaped air supplement static pressure box 41, a flow equalizing filter net 43 disposed at an air outlet at the bottom of the air supplement static pressure box 41, and an air direction adjusting assembly 44 disposed at an air outlet of the flow equalizing filter net 43; the upper air supply airflow passes through the air supply static pressure box 41, the flow equalizing filter screen 43 and the wind direction adjusting assembly 44 in sequence and then is discharged from the upper air supply port 40, partial dynamic pressure can be changed into static pressure by adopting the air supply static pressure box 41, so that the wind is blown farther, the noise can be reduced, and the wind quantity can be uniformly distributed; a flow equalizing filter screen 43 is arranged at the air outlet of the air supplementing static pressure box 41 to ensure that the air quantity is uniformly distributed; the wind direction adjusting component 44 is arranged at the air outlet of the flow equalizing filter screen 43, and the direction of air supplement can be adjusted according to the environment and the self requirement; the air supplement static pressure box 41 is in a strip shape, the length of the air supplement static pressure box is approximately displayed with the width of a glass plate, the area of air supplement is larger, toxic and harmful gas is prevented from escaping from the front side of the experiment cabinet body 1, the air supplement static pressure box 41 can be installed at the top of the experiment cabinet body 1, air inlets 42 are formed in two ends of the air supplement static pressure box 41, and air flow for supplying air is gathered from two ends of the air supplement static pressure box; the wind direction adjusting assembly 44 is a universal wind direction adjusting assembly, and can be adjusted in other forms if the universal wind direction adjusting assembly comprises left and right swinging louver blades and front and back swinging louver blades, and the wind direction of the upper air supplement can be adjusted through the universal wind direction adjusting assembly. The lower air supply mechanism 3 is a common air supply mechanism and comprises an air supply cover and a lower air supply channel, the output end of the air supply cover is connected with the lower air supply channel, and lower air supply airflow passes through the air supply cover and the lower air supply channel in sequence and then is discharged from the lower air supply opening 30; the wind-supplementing static pressure box 41 and the wind-supplementing cover share a wind-supplementing power facility or adopt an independent wind-supplementing power facility.
Claims (5)
1. A ventilation cabinet with air supplement comprises an experiment cabinet body and a storage cabinet body arranged below the experiment cabinet body, wherein a lower air supplement mechanism is arranged at the bottom of the experiment cabinet body, and an upper air supplement mechanism is arranged at the top of the experiment cabinet body; the method is characterized in that: the upper air supplementing mechanism comprises a strip-shaped air supplementing static pressure box, a flow equalizing filter screen arranged at an air outlet at the bottom of the air supplementing static pressure box and an air direction adjusting assembly arranged at the position of the flow equalizing filter playing air outlet.
2. A fume hood with air supplement according to claim 1, characterized in that: and air inlets are formed at two ends of the air supplementing static pressure box.
3. A ventilated hood with air supplement according to claim 1, wherein: the wind direction adjusting component is a universal wind direction adjusting component.
4. A ventilated hood with air supplement according to claim 1, wherein: the lower air supplement mechanism comprises an air supplement cover and a lower air supplement channel, and the output end of the air supplement cover is connected with the lower air supplement channel.
5. A ventilated hood with air supplement according to claim 4, wherein: the air supplementing static pressure box and the air supplementing cover share an air supplementing power facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223058488.2U CN218574559U (en) | 2022-11-18 | 2022-11-18 | Ventilation cabinet with air supplement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223058488.2U CN218574559U (en) | 2022-11-18 | 2022-11-18 | Ventilation cabinet with air supplement function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218574559U true CN218574559U (en) | 2023-03-07 |
Family
ID=85379186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223058488.2U Active CN218574559U (en) | 2022-11-18 | 2022-11-18 | Ventilation cabinet with air supplement function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218574559U (en) |
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2022
- 2022-11-18 CN CN202223058488.2U patent/CN218574559U/en active Active
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