CN216137833U - Fume hood and fume hood system - Google Patents
Fume hood and fume hood system Download PDFInfo
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- CN216137833U CN216137833U CN202120840912.5U CN202120840912U CN216137833U CN 216137833 U CN216137833 U CN 216137833U CN 202120840912 U CN202120840912 U CN 202120840912U CN 216137833 U CN216137833 U CN 216137833U
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Abstract
The utility model discloses a fume hood, which comprises: a ventilated cabinet, a seasoning system and controls. The fume chamber body has the air intake that gaseous entering, and the internal air-dry platform that is used for dry product that is provided with of fume chamber. The air-drying system is arranged in the fume hood body and comprises a first air exhaust channel and a second air exhaust channel. The first exhaust channel is provided with a circulating air outlet corresponding to the air inlet. The second air exhaust channel is provided with an outer air exhaust opening for exhausting air out of the ventilation cabinet body. The control piece is arranged in the second air exhaust channel and used for controlling the proportion of air passing through the first air exhaust channel and the second air exhaust channel on the air drying platform. In the utility model, the control part controls the proportion of the air passing through the first air exhaust channel and the second air exhaust channel on the air drying platform to control the air speed, the temperature and the humidity of the air, and when the air-dried product is achieved, the fume hood provides the specified air speed, temperature and humidity to meet the experiment requirements and the requirements of the experiment environment.
Description
Technical Field
The utility model relates to the technical field of experimental equipment, in particular to a fume hood.
Background
In the pharmaceutical industry, when a laboratory is used for air drying experiments of products, ventilation equipment with specified wind speed, temperature and humidity is required to be provided, and the ventilation equipment needs to meet the experimental requirements and experimental environment and can meet the requirement that the products can be produced in batches.
The existing fume hood cannot provide specified wind speed, temperature and humidity, and cannot meet the requirements and experimental environment of air drying experiments of products.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a ventilation cabinet, which is used for solving the problems that the existing ventilation cabinet in the prior art cannot provide specified wind speed, temperature and humidity, and cannot meet the requirements of air drying experiments of products and the experimental environment.
To achieve one or a part of or all of the above or other objects, the present invention provides a ventilation hood, including:
the air drying device comprises a ventilation cabinet body, a drying device and a drying device, wherein the ventilation cabinet body is provided with an air inlet for air to enter, and an air drying platform for drying products is arranged in the ventilation cabinet body;
the air drying system is arranged in the fume hood body and comprises a first air exhaust channel for internal circulation of air and a second air exhaust channel for external circulation of air; the first exhaust channel is provided with a circulating air outlet corresponding to the air inlet; the second air exhaust channel is provided with an outer air exhaust opening for exhausting air out of the ventilation cabinet body;
and the control piece is arranged in the second air exhaust channel and used for controlling the proportion of the air quantity of the internal circulation of the air and the air quantity of the external circulation of the air to pass through the air drying platform.
In the fume hood provided by the utility model, a negative pressure cavity is arranged below the air drying platform, a positive pressure cavity is arranged above the negative pressure cavity, the positive pressure cavity and the outer air outlet are correspondingly arranged, and a positive pressure adapter cavity is arranged on one side of the positive pressure cavity.
In the fume hood of the utility model, the positive pressure cavity is provided with a first branch pipeline corresponding to the positive pressure adapter cavity and a second branch pipeline corresponding to the outer air outlet.
In the fume hood of the present invention, the first exhaust duct includes, in order: the air-dry platform, the negative pressure cavity, the malleation cavity, first branch pipeline, malleation switching cavity and the circulated air export.
In the fume hood of the present invention, the second air exhaust duct sequentially includes: the air drying platform, the negative pressure cavity, the positive pressure cavity, the second branch pipeline and the outer air exhaust port.
In the fume hood provided by the utility model, a fan is arranged in the fume hood body and is used for starting the fume hood.
In the fume hood of the utility model, the negative pressure cavity is a negative pressure box body, the positive pressure cavity is a positive pressure box body, and the positive pressure adapter cavity is a positive pressure adapter box body.
In the fume hood of the present invention, the control member includes a rectangular damper provided at the outer exhaust port.
In the fume hood of the present invention, the fume hood body includes: the lamp comprises side upright posts, a back plate, a top decorative plate, a top plate, a fluorescent lamp and a support frame, wherein the side upright posts are symmetrically arranged, the back plate is arranged on one side of each side upright post, the top decorative plate is arranged on the other side of each side upright post, the top plate is arranged at the top of each side upright post, the fluorescent lamp is arranged below the top plate, and the support frame is arranged below the side upright posts.
In addition, the utility model also provides a fume hood system which comprises at least one fume hood and a pre-air drying device.
Compared with the prior art, the utility model has the beneficial effects that: in the utility model, the control part arranged in the second air exhaust channel controls the ratio of the air quantity of the internal circulation of the gas to the air quantity of the external circulation of the gas to pass through the air drying platform so as to control the air speed, the temperature and the humidity of the gas, and when the air-dried product is achieved, the fume hood provides the specified air speed, temperature and humidity so as to meet the requirements of experiments and the requirements of experimental environments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a side view of a fumehood in one embodiment.
Figure 2 is a front view of a fumehood in one embodiment.
Fig. 3 is a schematic structural diagram of a fume hood in one embodiment.
Fig. 4 is a schematic structural diagram of a fumehood system in one embodiment.
Wherein:
11. a ventilated cabinet body; 121. a circulating air outlet; 122. air-drying the platform; 123. an outer air discharge opening; 124. a negative pressure cavity; 125. a positive pressure cavity; 126. a positive pressure adapter cavity; 127. a fan; 131. a rectangular air valve; 14. and (5) pre-air drying the device.
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 of the 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.
Referring to fig. 1, 2 and 3, a fumehood includes: a ventilated cabinet 11, a seasoning system and controls. The ventilation cabinet body 11 is provided with an air inlet for air to enter, and the ventilation cabinet body 11 is internally provided with an air drying platform 122 for drying products. The air drying system is arranged in the ventilation cabinet body 11 and comprises a first air exhaust channel for air internal circulation and a second air exhaust channel for air external circulation. The first exhaust channel is provided with a circulating air outlet 121 corresponding to the air inlet. The second air discharge passage is provided with an outer air discharge port 123 for discharging air out of the register body 11. The control member is disposed in the second exhaust channel for controlling the ratio of the air passing through the first exhaust channel and the second exhaust channel on the seasoning platform 122.
In this embodiment, the control member arranged in the second air exhaust channel controls the ratio of the air volume of the internal circulation of the air and the air volume of the external circulation of the air to control the air speed, temperature and humidity of the air through the air drying platform 122, and when the air-dried product is achieved, the fume hood provides the specified air speed, temperature and humidity to meet the requirements of the experiment and the experiment environment.
In one embodiment, a negative pressure cavity 124 is disposed below the seasoning platform 122, a positive pressure cavity 125 is disposed above the negative pressure cavity 124, the positive pressure cavity 125 and the outer air outlet 123 are correspondingly disposed, and a positive pressure adapter cavity 126 is disposed on one side of the positive pressure cavity 125. A first branch pipeline corresponding to the positive pressure adapting cavity 126 and a second branch pipeline corresponding to the outer air outlet 123 are arranged on the positive pressure cavity 125. Specifically, the negative pressure cavity 124 is a negative pressure box, the positive pressure cavity 125 is a positive pressure box, and the positive pressure adapter 126 is a positive pressure adapter.
In one embodiment, the first exhaust channel comprises in sequence: the air drying device comprises an air drying platform 122, a negative pressure cavity 124, a positive pressure cavity 125, a first branch pipeline, a positive pressure adapter cavity 126 and a circulating air outlet 121. The air sequentially passes through the air drying platform 122, the negative pressure cavity 124, the positive pressure cavity 125, the first branch pipeline, the positive pressure adapter cavity 126 and the circulating air outlet 121 to form air internal circulation.
The second air exhaust channel comprises in sequence: an air drying platform 122, a negative pressure cavity 124, a positive pressure cavity 125, a second branch pipe and an outer air outlet 123. The gas sequentially passes through the air drying platform 122, the negative pressure cavity 124, the positive pressure cavity 125, the second branch pipeline and the outer air discharge opening 123 to form gas external circulation. A fan 127 is provided in the fume hood body 11 for starting the fume hood.
In one embodiment, the control member includes a rectangular damper 131 provided at the outer air discharge opening 123. In this embodiment, the pressure value in the negative pressure tank is set by the fan 127, and the air volume and the air speed flowing through the seasoning platform 122 are determined. Then, the air quantity flowing out of the outer air outlet 123 is adjusted by adjusting the opening degree of the rectangular air valve 131, and the air quantity which is not discharged through the outer air outlet 123 enters the gas internal circulation. And then, the air volume around the fume hood is supplemented through the air inlet, and the temperature and the humidity of the air volume in the whole fume hood are adjusted through the temperature and the humidity of the air volume around the fume hood.
The fume hood operation process is as follows: on the first hand, when the fan 127 starts, the air volume around the fume chamber enters the negative pressure box body through the air drying table board, the negative pressure box body is connected with the air inlet of the fan 127, the air volume enters the positive pressure box body under the action of the fan 127, the positive pressure box body is connected with the positive pressure adapter box, the air volume returns to the air drying table board through the circulating air outlet through the positive pressure adapter box, and the air inner circulation is formed. In the second aspect, the air enters the positive pressure box body under the action of the fan 127, the positive pressure box body is connected with the rectangular air valve 131, and the air passes through the rectangular air valve 131 and reaches the outer exhaust port 123, so that the outer exhaust air is sent out, and the air outer circulation is formed.
Specifically, referring to FIG. 1, the flow path of the gas inner circulation is A-B-C-D-E2-E, and the flow path of the gas outer circulation is A-B-C-D-E2-E3-E4.
In one embodiment, the ventilated cabinet 11 includes: the side stand that the symmetry was placed, set up the backplate in side stand one side, set up the top plaque in side stand opposite side, set up the roof at side stand top and set up fluorescent lamp and the support frame of setting under the side stand under the roof.
Referring to fig. 4, in one embodiment, a fumehood system includes at least one fumehood and a pre-air drying device 14 positioned alongside the fumehood. The pre-air-drying device 14 is used for pre-treating the experimental product in advance and then performing air-drying in stages according to requirements. Specifically, in the present embodiment, the experimental product is pre-processed on the pre-air drying device 14, and then the experimental product is processed in stages sequentially through two fume hoods, for example, the air speed of the air drying platform 122 of the first fume hood is set to 5m/s, and the air speed of the air drying platform 122 of the second fume hood is set to 2m/s for performing the experiment.
It should be noted that the fume hood system is more suitable for mass production, and at this time, the speed, humidity and temperature of the air volume do not need to be adjusted frequently.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (10)
1. A fumehood, comprising:
the air drying device comprises a ventilation cabinet body, a drying device and a drying device, wherein the ventilation cabinet body is provided with an air inlet for air to enter, and an air drying platform for drying products is arranged in the ventilation cabinet body;
the air drying system is arranged in the fume hood body and comprises a first air exhaust channel for internal circulation of air and a second air exhaust channel for external circulation of air; the first exhaust channel is provided with a circulating air outlet corresponding to the air inlet; the second air exhaust channel is provided with an outer air exhaust opening for exhausting air out of the ventilation cabinet body;
and the control piece is arranged in the second air exhaust channel and used for controlling the proportion of the air quantity of the internal circulation of the air and the air quantity of the external circulation of the air to pass through the air drying platform.
2. The fume hood according to claim 1, wherein a negative pressure cavity is arranged below the air drying platform, a positive pressure cavity is arranged above the negative pressure cavity, the positive pressure cavity and the outer air outlet are correspondingly arranged, and a positive pressure adapter cavity is arranged on one side of the positive pressure cavity.
3. The fumehood of claim 2 wherein said positive pressure cavity is provided with a first branch conduit corresponding to said positive pressure adaptor cavity and a second branch conduit corresponding to said outer air outlet.
4. A fumehood according to claim 3 wherein said first exhaust duct comprises, in order: the air-dry platform, the negative pressure cavity, the malleation cavity, first branch pipeline, malleation switching cavity and the circulated air export.
5. A fumehood according to claim 3 wherein said second exhaust duct comprises in sequence: the air drying platform, the negative pressure cavity, the positive pressure cavity, the second branch pipeline and the outer air exhaust port.
6. A fume hood according to any of claims 1-5, characterized in that a fan is provided in the fume hood body for activating the fume hood.
7. A fume hood according to any of claims 1-5, characterized in that the negative pressure cavity is a negative pressure box, the positive pressure cavity is a positive pressure box, and the positive pressure adapter cavity is a positive pressure adapter box.
8. A fumehood according to any one of claims 1 to 5 wherein said control comprises a rectangular damper disposed at said outer discharge opening.
9. A fumehood according to any one of claims 1 to 5 wherein said fumehood comprises: the lamp comprises side upright posts, a back plate, a top decorative plate, a top plate, a fluorescent lamp and a support frame, wherein the side upright posts are symmetrically arranged, the back plate is arranged on one side of each side upright post, the top decorative plate is arranged on the other side of each side upright post, the top plate is arranged at the top of each side upright post, the fluorescent lamp is arranged below the top plate, and the support frame is arranged below the side upright posts.
10. A fumehood system comprising a pre-air drying means and at least one fumehood of any one of claims 1-9; the pre-air drying device and the fume hood are arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120840912.5U CN216137833U (en) | 2021-04-22 | 2021-04-22 | Fume hood and fume hood system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120840912.5U CN216137833U (en) | 2021-04-22 | 2021-04-22 | Fume hood and fume hood system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216137833U true CN216137833U (en) | 2022-03-29 |
Family
ID=80798488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120840912.5U Active CN216137833U (en) | 2021-04-22 | 2021-04-22 | Fume hood and fume hood system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216137833U (en) |
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2021
- 2021-04-22 CN CN202120840912.5U patent/CN216137833U/en active Active
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