CN206716687U - A kind of vent cabinet face wind speed control system - Google Patents
A kind of vent cabinet face wind speed control system Download PDFInfo
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- CN206716687U CN206716687U CN201720562284.2U CN201720562284U CN206716687U CN 206716687 U CN206716687 U CN 206716687U CN 201720562284 U CN201720562284 U CN 201720562284U CN 206716687 U CN206716687 U CN 206716687U
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- 230000008859 change Effects 0.000 claims abstract description 27
- 238000009423 ventilation Methods 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Ventilation (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The utility model proposes a kind of vent cabinet face wind speed control system, including power supply module, in addition to the circuits below module being connected with power supply module：Parallel circuit group module：For the variable quantity of air quantity is corresponding with the change of electric current；Controller unit module：It is connected with the parallel circuit group module, for receiving the electric current of change；Air quantity motor drive module：It is connected with the controller unit module, for changing air quantity electric machine frequency according to curent change.A kind of vent cabinet face wind speed control system in the technical program, it is simple in construction, cost is low, dependable performance, it can realize that automatic air quantity controls air draft.
Description
Technical field
A kind of Mechatronic Systems is the utility model is related to, more particularly to a kind of vent cabinet face wind speed control system.
Background technology
Along with the development of science and technology and process of industrialization, scientific experiment is essential, every field lab construction
It has been be in full swing that, in various laboratories, the laboratory of toxic and harmful gas is produced in particularly testing, in order to ensure experiment people
The health of member is, it is necessary in time outside toxic and harmful gas discharge laboratory.Existing frequently-used air draft method：A kind of mode is
Ventilation equipment (vent cabinet, ventilator cowling, universal draft hood) are coupled direct air draft with pipeline, blower fan, otherwise this mode blower fan
Or opening, closing, blower fan exhaust air rate can not be adjusted, as long as a ventilation equipment use, blower fan just must running at full capacity.Therefore,
The shortcomings of experimental laboratory air exhausting causes winter cold, summer heat, and noise is big, and electric energy loss is big.Another way is exactly to pass through PLC
Or computer programming control, this mode can realize VAV control air draft, but each not phase of experimental laboratory air exhausting number of devices
Together, programing work amount is big, and control device cost is high, and only minimal amount of high-level laboratory can just be afforded to use, universal in reality
Using extremely difficult.
Utility model content
In order to solve traditional experiment room variable air rate air draft control above shortcomings, the utility model provides a kind of ventilation
Cabinet face wind speed control system, it is simple in construction, cost is low, dependable performance, it can realize that automatic air quantity controls air draft.
The utility model adopts the following technical scheme that：A kind of vent cabinet face wind speed control system, including power supply module, are also wrapped
Include the circuits below module being connected with power supply module：
Parallel circuit group module：For the variable quantity of air quantity is corresponding with the change of electric current；
Controller unit module：It is connected with the parallel circuit group module, for receiving the electric current of change；
Air quantity motor drive module：It is connected with the controller unit module, for changing air quantity electricity according to curent change
Unit frequency.
Further, the parallel circuit group module includes multiple parallel circuits, and each parallel circuit includes the ventilation being sequentially connected in series
Equipment, resistance and switch, the multiple parallel circuit access the controller unit module after being in parallel.
Further, the ventilation equipment include vent cabinet, versatile exhausting cover and atomic absorption cover.
Further, the vent cabinet connection adjustable resistance and switch.
Further, adjustable resistance access emergency exhaust button also in parallel.
Further, the controller unit module includes frequency converter.
Implement the utility model proposes a kind of vent cabinet face wind speed control system, there is beneficial technique effect below：
It is different from traditional vent cabinet face wind speed control system and the problem of noise is big, loss is high, manufacturing cost is higher is present.
This programme manufacturing cost is low, while can realize air quantity because of facility switching, vent cabinet form Level Change, and the air quantity brought becomes
Change, and automatically change air draft wind speed, with the reduction of the wind speed of exhaust fan, the energy of exhaust blower can not only be greatly lowered
Consumption, and substantially reduce the noise that blower fan is brought.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of vent cabinet face wind speed control system functional-block diagram of embodiment of the present utility model；
Fig. 2 is a kind of physical object simulating of vent cabinet face wind speed control system functional-block diagram of embodiment of the present utility model
Figure.
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.
Referring to Fig. 1, embodiment of the present utility model provides a kind of vent cabinet face wind speed control system 1, including power supply
Module 10, in addition to the circuits below module being connected with power supply module 10：
Parallel circuit group module 20：For the variable quantity of air quantity is corresponding with the change of electric current；
Controller unit module 30：It is connected with parallel circuit group module 20, for receiving the electric current of change；
Air quantity motor drive module 40：It is connected with controller unit module 30, for changing air quantity electricity according to curent change
Unit frequency.
According to a specific embodiment, the parallel circuit group module 20 includes multiple parallel circuits, and each parallel circuit is included successively
Ventilation equipment, resistance and the switch of concatenation, multiple parallel circuits access controller unit module 30 after being in parallel.
According to a specific embodiment, the ventilation equipment include vent cabinet, versatile exhausting cover and atomic absorption cover.
According to a specific embodiment, vent cabinet connection adjustable resistance and switch.
According to a specific embodiment, adjustable resistance access emergency exhaust button also in parallel.
According to a specific embodiment, the controller unit module 30 includes frequency converter.
Referring to Fig. 2, another embodiment of the present utility model provides a kind of vent cabinet face wind speed control system 1, including supply
Electric module 10, in addition to the circuits below module being connected with power supply module 10：
Parallel circuit group module 20：For the variable quantity of air quantity is corresponding with the change of electric current；
Controller unit module 30：It is connected with parallel circuit group module, for receiving the electric current of change；
Air quantity motor drive module 40：It is connected with controller unit module 30, for changing air quantity electricity according to curent change
Unit frequency.
According to a specific embodiment, the parallel circuit group module 20 includes multiple parallel circuits, and each parallel circuit is included successively
Ventilation equipment, resistance and the switch of concatenation, multiple parallel circuits access controller unit module 30 after being in parallel.
According to a specific embodiment, the ventilation equipment include vent cabinet, versatile exhausting cover R3 and atomic absorption cover R4.
According to a specific embodiment, vent cabinet connection adjustable resistance and switch.
According to a specific embodiment, adjustable resistance access emergency exhaust button also in parallel.
According to a specific embodiment, the controller unit module 30 includes frequency converter.
First parallel circuit：First switch is connected after 1.5m vent cabinet adjustable resistance RP1 one end series connection access first resistor R1
S1 one end, first switch S1 the first dc source of another termination G1 positive pole, the 1.5m vent cabinet adjustable resistances RP1 other end
Vacantly, the adjustable positive poles terminated into frequency converter signal input end of 1.5m vent cabinets adjustable resistance RP1, the first emergency exhaust button
S11 both ends access 1.5m vent cabinet adjustable resistances RP1 in parallel is adjustable end and adjustable resistance RP1 and first resistor R1's is public
End, the negative pole of the first dc source G1 negative pole access frequency converter signal input end, by adjusting 1.5m vent cabinet adjustable resistances
RP1 is adjustable, and end changes resistance value and then changes branch current, and when the first emergency exhaust button S11 is pressed, 1.5m vent cabinets can
It is now zero to adjust resistance RP1 resistance values, and the first parallel circuit resistance minimum value is first resistor R1 resistance value, and electric current is shown as most
Big value；When the first emergency exhaust button S11 is not pressed (i.e. not operating), 1.5m vent cabinet adjustable resistances RP1 adjustable end slides into
During high order end, this branch resistance shows as maximum, and electric current shows as minimum value.
Second parallel circuit：Second switch is connected after 1.8m vent cabinet adjustable resistance RP2 one end series connection access second resistance R2
S2 one end, second switch S2 the second dc source of another termination G2 positive pole, the 1.8m vent cabinet adjustable resistances RP2 other end
Vacantly, the adjustable positive poles terminated into frequency converter signal input end of 1.8m vent cabinets adjustable resistance RP2, the second emergency exhaust button
S22 both ends access 1.8m vent cabinet adjustable resistances RP2 in parallel is adjustable end and adjustable resistance RP2 and second resistance R2's is public
End, the negative pole of the second dc source G2 negative pole access frequency converter signal input end, by adjusting 1.8m vent cabinet adjustable resistances
RP2 is adjustable, and end changes resistance value and then changes branch current, and when the second emergency exhaust button S22 is pressed, 1.8m vent cabinets are adjustable
Resistance RP2 resistance values are now zero, and the second parallel circuit resistance minimum value is second resistance R2 resistance value, and electric current shows as maximum
Value, when the second emergency exhaust button S22 is not pressed (i.e. not operating), 1.8m vent cabinet adjustable resistances RP2 adjustable end slides into most
During left end, this branch resistance shows as maximum, and electric current shows as minimum value.
3rd parallel circuit：The switch S3 of versatile exhausting cover 3rd resistor R3 one end concatenation the 3rd is followed by the 3rd dc source G3's
Positive pole, the 3rd dc source G3 negative pole connect the negative pole of frequency converter signal input end, and versatile exhausting cover 3rd resistor R3's is another
The positive pole of frequency converter signal input end is terminated, the 3rd parallel circuit electric current is definite value.
4th parallel circuit：The switch S4 of the resistance R4 one end of atomic absorption cover the 4th concatenation the 4th is followed by the 4th dc source G4's
Positive pole, the 4th dc source G4 negative pole connect the negative pole of frequency converter signal input end, and the resistance R4's of atomic absorption cover the 4th is another
The positive pole of frequency converter signal input end is terminated, the 4th parallel circuit electric current is definite value.
5th parallel circuit：The fixed switch S5 of the resistance R5 one end of air quantity blower fan the 5th concatenation the 5th is followed by the 5th dc source G5
Positive pole, the 5th dc source G5 negative pole connects the negative pole of frequency converter signal input end, the fixed resistance R5's of air quantity blower fan the 5th
The positive pole of another termination frequency converter signal input end, the 5th parallel circuit electric current is definite value.
Above-mentioned first to the 5th parallel circuit is connected in parallel, and the positive pole of the public termination frequency converter signal input end of one, its is another
The negative pole of one public termination frequency converter signal input end, frequency converter output frequency is corresponded to by the change of every parallel circuit electric current and become
Change.
Converter power supply input accesses three-phase alternating-current supply, is inverter supply.
Converter power supply output end meets exhaust fan M.
Embodiment of the present utility model, realize cabinet face form and open size and the linkage regulation of cabinet face air intake wind speed.This
Scheme use by the variable quantity of air quantity it is corresponding with electric current, be directly connected to the signal input part of frequency converter with the change of electric current, and then
Change electric machine frequency with frequency conversion, realize that the air quantity of exhaust blower changes.Wherein：Including 3V dc sources (G1~G5), frequency converter, lead to
Current circuit (circuit containing emergency exhaust), the fixed air quantity of wind cabinet door and window height displacement (the corresponding resistance value for changing adjustable resistance)
Ventilation equipment current circuit (switching mode).The control principle of this programme is that the increase and decrease of air quantity directly corresponds to the increasing of electric current
Subtract, as the input signal of frequency converter, and then control fan delivery.The current circuit of vent cabinet door and window height displacement is (containing tight
Anxious air draft circuit), it is corresponding come the circuit of decision device by ratio of the size of each equipment exhaust air rate in whole exhaust system
Electric current, maximum, the maximum of minimum current corresponding device exhaust air rate, minimum exhaust air rate in branch circuit.
It is further illustrated below as follows：
The utility model proposes a kind of vent cabinet face wind speed control system：Using by the variable quantity of air quantity and electric current pair
Should, the signal input part of frequency converter is directly connected to the change of electric current, and then change electric machine frequency with frequency conversion, realize exhaust blower
Air quantity changes.Wherein：Current circuit including 3V dc sources, frequency converter, vent cabinet door and window height displacement is (electric containing emergency exhaust
Road), the current circuit (switching mode) of the ventilation equipment of fixed air quantity.The control principle of this programme is that the increase and decrease of air quantity is directly corresponding
To the increase and decrease of electric current, as the input signal of frequency converter, and then fan delivery is controlled.
Have in practice been verified that, the utility model advantage is：
A kind of vent cabinet face ventilating system provided by the utility model, it is different from traditional vent cabinet face wind speed control system
The problem of noise is big, loss is high, manufacturing cost is higher.This programme is that manufacturing cost is low, while air quantity can be realized because of equipment
Switch, vent cabinet form Level Change, the air quantity change brought, and automatically change the wind speed of air draft, with exhaust fan
The reduction of wind speed, the energy consumption of exhaust blower can not only be greatly lowered, and substantially reduce the noise that blower fan is brought.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (6)
1. a kind of vent cabinet face wind speed control system, including power supply module, it is characterised in that also include being connected with power supply module
Circuits below module：
Parallel circuit group module：For the variable quantity of air quantity is corresponding with the change of electric current；
Controller unit module：It is connected with the parallel circuit group module, for receiving the electric current of change；
Air quantity motor drive module：It is connected with the controller unit module, for changing air quantity motor frequency according to curent change
Rate.
2. vent cabinet face according to claim 1 wind speed control system, it is characterised in that the parallel circuit group module includes
Multiple parallel circuits, each parallel circuit includes ventilation equipment, resistance and the switch being sequentially connected in series, after the multiple parallel circuit is in parallel
Access the controller unit module.
3. vent cabinet face according to claim 2 wind speed control system, it is characterised in that the ventilation equipment include ventilation
Cabinet, versatile exhausting cover and atomic absorption cover.
4. vent cabinet face according to claim 3 wind speed control system, it is characterised in that the vent cabinet connects adjustable electric
Resistance and switch.
5. vent cabinet face according to claim 4 wind speed control system, it is characterised in that the adjustable resistance also and couples
Enter emergency exhaust button.
6. vent cabinet face according to claim 1 wind speed control system, it is characterised in that the controller unit module bag
Include frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720562284.2U CN206716687U (en) | 2017-05-19 | 2017-05-19 | A kind of vent cabinet face wind speed control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720562284.2U CN206716687U (en) | 2017-05-19 | 2017-05-19 | A kind of vent cabinet face wind speed control system |
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| Publication Number | Publication Date |
|---|---|
| CN206716687U true CN206716687U (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720562284.2U Expired - Fee Related CN206716687U (en) | 2017-05-19 | 2017-05-19 | A kind of vent cabinet face wind speed control system |
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| Country | Link |
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| CN (1) | CN206716687U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404916A (en) * | 2019-08-02 | 2019-11-05 | 上海沃森环保股份有限公司 | A kind of determining suction inlet be opened and closed whether and required air force system and method |
| CN113290010A (en) * | 2021-04-13 | 2021-08-24 | 扬州博鑫仪器有限公司 | Torque-adjustable fume hood control system |
-
2017
- 2017-05-19 CN CN201720562284.2U patent/CN206716687U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110404916A (en) * | 2019-08-02 | 2019-11-05 | 上海沃森环保股份有限公司 | A kind of determining suction inlet be opened and closed whether and required air force system and method |
| CN113290010A (en) * | 2021-04-13 | 2021-08-24 | 扬州博鑫仪器有限公司 | Torque-adjustable fume hood control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 Chuangke Building 226-227, No. 72-6 Huanguannan Road, Xintian Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN KINWATAI LABORATORY CONSTRUCTION Co.,Ltd. Address before: 518000 Guanlan Street, Longhua New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN KINWATAI LABORATORY EQUIPMENT CO.,LTD. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 1002, building E4, TCL Science Park, 1001 Zhongshan Garden Road, Shuguang community, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Jinhuatai Laboratory Technology Development Co.,Ltd. Address before: 518000 Chuangke Building 226-227, No. 72-6 Huanguannan Road, Xintian Community, Guanhu Street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN KINWATAI LABORATORY CONSTRUCTION Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |