CN206779123U - One kind balance supply and exhaust fume hood - Google Patents
One kind balance supply and exhaust fume hood Download PDFInfo
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- CN206779123U CN206779123U CN201720616185.8U CN201720616185U CN206779123U CN 206779123 U CN206779123 U CN 206779123U CN 201720616185 U CN201720616185 U CN 201720616185U CN 206779123 U CN206779123 U CN 206779123U
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- exhaust
- bookcase body
- blower
- fume hood
- exhaust blower
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Abstract
The utility model discloses a kind of balance supply and exhaust fume hood of fume hood technical field,Including bookcase body,The right side inwall of the bookcase body is provided with harmful gas sensor,Exhaust blower is provided with the left of the inner cavity top of the bookcase body,The outer wall of the exhaust blower is provided with frequency converter,The top of the bookcase body is provided with exhaust duct,The bottom of the exhaust duct is connected with the output end of exhaust blower,The junction of the exhaust blower and exhaust duct is provided with air filter,Harmful gas concentration in bookcase body is monitored by harmful gas sensor,After reaching discharge value,Control device control exhaust blower is operated,Exhaust blower is discharged toxic gas by exhaust duct,Control is mended blower fan and is operated,Mend blower fan and outdoor wind is sucked by the second ventilation shaft,Mend blower fan and outdoor wind is transferred to by bookcase body inner chamber by the first intake stack,The output wind speed for the exhaust blower that MOD monitors according to air velocity transducer is adjusted into ventilation in bookcase body.
Description
Technical field
Fume hood technical field is the utility model is related to, is specially a kind of balance supply and exhaust fume hood.
Background technology
Fume hood, also known as fuming cupboard, it is a kind of large scale equipment of laboratory particularly chemical laboratory.Purposes is to reduce experiment
Contact of the person with pernicious gas, completely isolation then need to use glove box, and fume hood is that protection staff prevents toxic chemical flue gas
The primary barrier of harm.It can be as important safe backuup equipment, as in chemical experiment procedure failure, chemical fumes, dirt
Angstrom and toxic gas effectively discharge pernicious gas when producing, protect staff and laboratory environment.Traditional experiment room uses
It is that a fume hood is furnished with blower fan mostly, ventilation size is fixed, it is impossible to adjustment as needed immediately, air draft air-supply is uneven,
Inconvenience is brought to experimenter's operation, and toxic gas is unprocessed in laboratory is directly discharged to outdoor, and environment is caused
Pollution, destructions is caused to ecological environment, is this it is proposed that a kind of balance supply and exhaust fume hoods.
Utility model content
The purpose of this utility model is to provide a kind of balance supply and exhaust fume hood, to solve to propose in above-mentioned background technology
A fume hood be furnished with blower fan, ventilation size is fixed, it is impossible to which adjustment as needed immediately, air draft air-supply is uneven, to reality
Test human users and bring inconvenience, and toxic gas is unprocessed in laboratory is directly discharged to outdoor, and dirt is caused to environment
Dye, the problem of destruction is caused to ecological environment.
To achieve the above object, the utility model provides following technical scheme：One kind balance supply and exhaust fume hood, including cupboard
Body, the right side inwall of the bookcase body is provided with harmful gas sensor, exhaust blower is provided with the left of the inner cavity top of the bookcase body, described
The outer wall of exhaust blower is provided with frequency converter, and the top of the bookcase body is provided with exhaust duct, the bottom of the exhaust duct and exhaust blower
Output end be connected, the junction of the exhaust blower and exhaust duct is provided with air filter, the left side of the exhaust duct
Inwall bottom is provided with air velocity transducer, and the top right side of the bookcase body is provided with the first intake stack, first intake stack
Intracavity bottom is provided with MOD, and the other end of first intake stack is connected with mending the output end of blower fan, the benefit blower fan
Input be connected with the second intake stack, the outer right wall of the bookcase body is provided with control device, the control device respectively with
Harmful gas sensor, exhaust blower, frequency converter, air velocity transducer, MOD and benefit blower fan are electrically connected with.
Preferably, the air filter includes framework, and the intracavity bottom of the framework is provided with thick matter filter, described
The inner chamber of framework is provided with secondary filter plate, and the inner cavity top of the framework is provided with charcoal absorption plate.
Preferably, the framework is fixedly connected by bolt with the output end of exhaust blower.
Preferably, the outer right wall of second intake stack is provided with activated carbon filter.
Preferably, the top right side of the bookcase body is provided with air inlet, and air inlet is connected with the bottom of the first intake stack.
Compared with prior art, the beneficial effects of the utility model are：The utility model is rational in infrastructure, easy to use, leads to
Harmful gas concentration in harmful gas sensor monitoring bookcase body is crossed, after reaching discharge value, control device control exhaust blower carries out work
Make, the other end of exhaust duct is located outside, and exhaust blower is discharged toxic gas by exhaust duct, passes through air filter
Pernicious gas can be filtered, avoid pernicious gas from being expelled directly out, environment is polluted, with timed unit according to wind
The output wind speed of the exhaust blower of fast Sensor monitoring, control are mended blower fan and are operated, and mend blower fan and are sucked by the second ventilation shaft
Outdoor wind, mend blower fan and outdoor wind is transferred to by bookcase body inner chamber by the first intake stack, MOD is according to air velocity transducer
The output wind speed of the exhaust blower of monitoring is adjusted into ventilation in bookcase body.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model air filter structural representation.
In figure：1 bookcase body, 2 harmful gas sensors, 3 exhaust blowers, 4 frequency converters, 5 exhaust ducts, 6 air filters, 61
Framework, 62 thick matter filters, 63 secondary filter plates, 64 charcoal absorption plates, 7 air velocity transducers, 8 first intake stacks, 81
Blower fan, 11 activated carbon filters, 12 control devices are mended in two intake stacks, 9 MODs, 10.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of balance supply and exhaust fume hood technical scheme：One kind balance supply and exhaust
Fume hood, including bookcase body 1, the right side inwall of the bookcase body 1 are provided with harmful gas sensor 2, and the inner cavity top of the bookcase body 1 is left
Side is provided with exhaust blower 3, and the outer wall of the exhaust blower 3 is provided with frequency converter 4, and the top of the bookcase body 1 is provided with exhaust duct 5, described
The bottom of exhaust duct 5 is connected with the output end of exhaust blower 3, and the junction of the exhaust blower 3 and exhaust duct 5 is provided with air mistake
Filter device 6, the inner left wall bottom of the exhaust duct 5 is provided with air velocity transducer 7, and the top right side of the bookcase body 1 is provided with the
One intake stack 8, the intracavity bottom of first intake stack 8 are provided with MOD 9, first intake stack 8 it is another
Hold and be connected with mending the output end of blower fan 10, the input for mending blower fan 10 is connected with the second intake stack 81, the benefit blower fan
10 are installed on outside laboratory, and the outer right wall of the bookcase body 1 is provided with control device 12, the control device respectively with pernicious gas
Sensor 2, exhaust blower 3, frequency converter 4, air velocity transducer 7, MOD 9 and benefit blower fan 10 are electrically connected with.
Wherein, the air filter 6 includes framework 61, and the intracavity bottom of the framework 61 is provided with thick matter filter
62, the inner chamber of the framework 61 is provided with secondary filter plate 63, and the inner cavity top of the framework 61 is provided with charcoal absorption plate 64, institute
State framework 61 to be fixedly connected with the output end of exhaust blower 3 by bolt, the outer right wall of second intake stack 81, which is provided with, lives
Property charcoal filter 11, can prevent that the toxic component in air, impurity, dust etc. from entering bookcase body by activated carbon filter 11,
To ensure that the air being admitted in bookcase body 1 reaches the required degree of purity of experiment, the top right side of the bookcase body 1 is provided with air intake
Mouthful, and air inlet is connected with the bottom of the first intake stack 8.
Operation principle：The utility model is rational in infrastructure, easy to use, and being monitored by harmful gas sensor 2 in bookcase body 1 has
Evil gas concentration, after reaching discharge value, control device 12 controls exhaust blower 3 to be operated, and the other end of exhaust duct 5 is located at room
Outside, exhaust blower 3 is discharged toxic gas by exhaust duct 5, and the power output of exhaust blower 3 can be adjusted by frequency converter 4, is led to
Crossing air filter 6 can filter to pernicious gas, avoid pernicious gas from being expelled directly out, environment is polluted, together
The output wind speed for the exhaust blower 3 that timed unit 12 monitors according to air velocity transducer 7, control are mended blower fan 10 and are operated, and mend wind
Machine 10 sucks the wind of outdoor by the second ventilation shaft 81, mends blower fan 10 and outdoor wind is transferred into cupboard by the first intake stack 8
The inner chamber of body 1, the output wind speed for the exhaust blower 3 that MOD 9 monitors according to air velocity transducer 7 are adjusted into ventilation in bookcase body 1.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. one kind balance supply and exhaust fume hood, including bookcase body (1), it is characterised in that：The right side inwall of the bookcase body (1) has
Evil gas sensor (2), the inner cavity top left side of the bookcase body (1) are provided with exhaust blower (3), and the outer wall of the exhaust blower (3) is set
There is frequency converter (4), the top of the bookcase body (1) is provided with exhaust duct (5), bottom and the exhaust blower (3) of the exhaust duct (5)
Output end be connected, the junction of the exhaust blower (3) and exhaust duct (5) is provided with air filter (6), the exhaust duct
The inner left wall bottom in road (5) is provided with air velocity transducer (7), and the top right side of the bookcase body (1) is provided with the first intake stack
(8), the intracavity bottom of first intake stack (8) is provided with MOD (9), the other end of first intake stack (8)
It is connected with the output end for mending blower fan (10), the input for mending blower fan (10) is connected with the second intake stack (81), the cupboard
The outer right wall of body (1) is provided with control device (12), the control device respectively with harmful gas sensor (2), exhaust blower
(3), frequency converter (4), air velocity transducer (7), MOD (9) and benefit blower fan (10) are electrically connected with.
A kind of 2. balance supply and exhaust fume hood according to claim 1, it is characterised in that：The air filter (6)
Including framework (61), the intracavity bottom of the framework (61) is provided with thick matter filter (62), and the inner chamber of the framework (61) is provided with
Secondary filter plate (63), the inner cavity top of the framework (61) are provided with charcoal absorption plate (64).
A kind of 3. balance supply and exhaust fume hood according to claim 2, it is characterised in that：The framework (61) passes through bolt
It is fixedly connected with the output end of exhaust blower (3).
A kind of 4. balance supply and exhaust fume hood according to claim 1, it is characterised in that：Second intake stack (81)
Outer right wall be provided with activated carbon filter (11).
A kind of 5. balance supply and exhaust fume hood according to claim 1, it is characterised in that：The top right of the bookcase body (1)
Side is provided with air inlet, and air inlet is connected with the bottom of the first intake stack (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616185.8U CN206779123U (en) | 2017-05-31 | 2017-05-31 | One kind balance supply and exhaust fume hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720616185.8U CN206779123U (en) | 2017-05-31 | 2017-05-31 | One kind balance supply and exhaust fume hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206779123U true CN206779123U (en) | 2017-12-22 |
Family
ID=60714750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720616185.8U Active CN206779123U (en) | 2017-05-31 | 2017-05-31 | One kind balance supply and exhaust fume hood |
Country Status (1)
| Country | Link |
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| CN (1) | CN206779123U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047256A (en) * | 2018-09-17 | 2018-12-21 | 长江大学 | A kind of intelligence sterile hood |
| CN113870534A (en) * | 2021-08-15 | 2021-12-31 | 桂林理工大学 | Structural design method of explosion-proof harmful gas detection fume hood |
| CN117102190A (en) * | 2023-10-25 | 2023-11-24 | 浙江之科云启科技有限公司 | Fume hood for biological experiments |
-
2017
- 2017-05-31 CN CN201720616185.8U patent/CN206779123U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047256A (en) * | 2018-09-17 | 2018-12-21 | 长江大学 | A kind of intelligence sterile hood |
| CN109047256B (en) * | 2018-09-17 | 2023-09-15 | 长江大学 | Intelligent sterile fume hood |
| CN113870534A (en) * | 2021-08-15 | 2021-12-31 | 桂林理工大学 | Structural design method of explosion-proof harmful gas detection fume hood |
| CN117102190A (en) * | 2023-10-25 | 2023-11-24 | 浙江之科云启科技有限公司 | Fume hood for biological experiments |
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