CN1660514A - Ventilation cabinet management system - Google Patents
Ventilation cabinet management system Download PDFInfo
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- CN1660514A CN1660514A CN 200410007076 CN200410007076A CN1660514A CN 1660514 A CN1660514 A CN 1660514A CN 200410007076 CN200410007076 CN 200410007076 CN 200410007076 A CN200410007076 A CN 200410007076A CN 1660514 A CN1660514 A CN 1660514A
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Abstract
A management system for the ventilated cabinets is composed of a data acquisition unit for acquiring the operation state data from multiple ventilated cabinets and a server having an operating unit for calculating the utilization rate of the ventilated cabinets according to the total number of ventilated cabinets and the number of the ventilated cabinets in use.
Description
Technical field
The present invention relates to a kind of discharge in this locality such as research place, factory or hospital, produce in the environment, to the fume hood of the harmful toxic gas of staff or product, more specifically, relate to a kind of fume hood management system that can obtain with the security-related data of staff.
Background technology
In chemical experiment, in course of experimental work, produce harmful gas or dust through regular meeting.Fume hood is a kind ofly to prevent that this harmful substance from spreading and preventing the equipment of man body pollution in the room.Usually, fume hood has the outer cover (hood) that has window leaf (sash) door, and this outer cover can be by horizontal or vertical opening/closing.Breadboard staff can enter outer cover by this window leaf door.
Be exposed in pernicious gas or the dust for fear of the staff who in fume hood, works, outer cover is linked to each other with the exhaust equipment that is used to remove harmful substance.
As being used for this exhaust control method with jet system of fume hood and exhaust equipment, VAV (variable air volume) method is known, and this method is according to the discharge air-flow in the aperture ratio change fume hood of window leaf.In addition, known UBC in addition (based on the control of using (Usage Based Controls) (trade name)), this method testing personnel's is on the scene or absent, has only to increase when the staff is on the scene and discharges air-flow, if and when not having the staff on the scene, then reduce and discharge air-flow.
In recent jet system, proposed " diversity (diversity) " and be used for system optimization as technology." diversity " is a kind of system's design concept based on statistical value,, along with the increase of fume hood number, uses the situation that converges on a predetermined value than (ratio of the number of the fume hood that is using and the sum of fume hood) in the time of fume hood that is.
According to " diversity " notion, design maximum capacity, promptly the maximum airflow that can discharge of this exhaust equipment can reduce according to this statistical value.Therefore, in the breadboard while of safety operation, can reduce cost of energy effectively.
But, traditional jet system is not measured the device that uses ratio simultaneously in practical operation.Therefore when can not determine the practical operation time, uses the design phase surplus of ratio.
Practical operation uses beguine to change according to the place that fume hood has been installed in the time of the time.In fact, use simultaneously beguine to change according to the ratio of place and staff's number.Therefore, if the design of system is only used ratio according to statistics time, can not determine then whether this design is reasonable.In order to guarantee enough safety, design margin must be bigger.
In addition, the conventional flow amount control system both had been not used in measures maximum device of discharging air-flow, maximum discharge air-flow is instantaneous discharge air-flow sum, does not also measure the device of safe clearance, and safe clearance promptly designs maximum air-flow and the minimum difference of discharging between the air-flow of discharging.Therefore, can not determine the tolerance in safe coefficient or place.
As a result, in the conventional air control system, can not obtain and comprise and use data ratio, relevant with staff's safety in the practical operation time simultaneously.Therefore, be difficult to the security of estimating system.
Summary of the invention
The purpose of this invention is to provide a kind of fume hood management system that can obtain the data relevant with staff's safety.
To achieve these goals,, provide a kind of fume hood management system, comprised harvester, be used for representing the data of mode of operation from a plurality of fume hood collections according to the present invention; And server apparatus, this server apparatus comprises arithmetic unit, be used for sum according to cupboard number that uses simultaneously and fume hood and calculate and use ratio simultaneously, the cupboard number of use obtains by the data of harvester collection, and this number has been represented the fume hood number that is being used.
Description of drawings
Fig. 1 is the block diagram according to the fume hood management system setting of the embodiment of the invention;
Fig. 2 A is the block diagram that is provided with according to fume hood in the fume hood management system of the embodiment of the invention;
Fig. 2 B is the block diagram that is provided with according to data acquisition module in the fume hood management system of the embodiment of the invention;
Fig. 2 C is the block diagram that is provided with according to server apparatus in the fume hood management system of the embodiment of the invention;
Fig. 2 D is the block diagram that is provided with according to terminal device in the fume hood management system of the embodiment of the invention; And
Figure 3 shows that the data instance that is shown in terminal device screen shown in Figure 1.
The specific embodiment
Below with reference to the accompanying drawings embodiments of the invention are elaborated.
As shown in Figure 1, fume hood management system according to the present invention comprises a plurality of fume hoods 1; As the data acquisition module 2 of harvester, be used for gathering the field data of having represented mode of operation from each fume hood 1; And the server unit 3 that is used as arithmetic unit, be used for calculating use ratio or safe clearance simultaneously according to the field data that collects.
According to the fume hood management system of present embodiment also comprise a plurality of demonstrations from server apparatus 3 send the terminal device 4 of data, the router five that described fume hood 1 is linked to each other with network and the gateway device 6 that network is linked to each other with described data acquisition module 2.
Fume hood management system according to this embodiment also comprises Intranet 7 that links to each other with terminal device 4 and the router 8 that server apparatus 3 is linked to each other with Intranet 7.
Shown in Fig. 2 A, each fume hood 1 comprise transmission/reception expression mode of operation field data transmission/receiving unit 1a and link to each other with this transmission/receiving unit 1a and control the control section 1d of various piece.
Fume hood 1 also comprises aperture ratio sensor part 1b, and this part links to each other with control section 1d, and detect and monitor the window leaf aperture of door of hood 1c (describing subsequently) preparation directly than.Fume hood 1 also comprises hood 1c, and this hood 1c links to each other with aperture ratio sensor part 1b, and has and have for example outer cover of movable window leaf door.Fume hood 1 also comprises operator test section 1e, and this part links to each other with control section 1d and detects the staff (operator) of fume hood 1 front.Control section also links to each other with barometric damper 12.
As test section 1e, can use the various devices such as infrared sensor or video camera.
In order to determine that whether the window leaf is opened, and can use the method for the direct detection window leaf of window leaf aperture ratio sensor aperture ratio.Alternatively, can be by obtaining the aperture ratio of window leaf according to the maximum height of known window leaf and the detected window leaf of the window leaf position sensor position that invests the precalculated position in the computing, thus determine the opening of window leaf.
When the value of fume hood exhaust valve control signal is equal to or greater than predetermined value of setting (should discharge predetermined or more air-flows at this value place), or exceed predeterminedly minimum when discharging air-flow when the pneumatic sensor measured value that invests the precalculated position, can determine that also the window leaf opens.
At least one aperture ratio sensor 1b and test section 1e are just enough.
In the present invention, " safe clearance " refers to staff's safe coefficient and place tolerance.
Shown in Fig. 2 B, data acquisition module 2 comprises the transmission/receiving unit 2a of the field data that receives the expression mode of operation; Control section 2b, this part has and links to each other with transmission/receiving unit 2a and the collecting part 2d of collection site data; And link to each other with control section 2b and store the storage area 2c that receives data.
Shown in Fig. 2 C, server apparatus 3 comprises the transmission/receiving unit 3a of reception from the data of fume hood 1 and data acquisition module 2, and links to each other with transmission/receiving unit 3a and control the control section 3b of various piece.Server apparatus 3 also comprises the storage area 3c that links to each other with control section 3b and store operation result.Server apparatus 3 also comprises the arithmetic section 3d that links to each other with control section 3b, and this part comprises to be used when ratio is used in calculating simultaneously than calculating section 3e (describing subsequently), the maximum discharge air-flow calculating section 3f that calculates maximum discharge air-flow and the safe clearance calculating section 3g of computationally secure surplus.
Terminal device 4 comprises that reception links to each other from the transmission/receiving unit 4a of the data of server apparatus 3 and with transmission/receiving unit 4a and controls the control section 4b of various piece.Terminal device 4 also comprises and links to each other with control section 4b and show the display part 4d that receives data, and storage receives the storage area 4c of data.
Operation to the fume hood management system describes below.
When the VAV method was used as the exhaust control method, the control section of each fume hood 1 (control module) 1d changed the discharge air-flow by the aperture according to window leaf 11 than regulating control damper 12.For example, when the aperture of window leaf 11 ratio be 20% or more hour, control section 1d is provided with the minimum air-flow of discharging.When the aperture ratio is 50%, will discharges air-flow and be made as 50%.When the aperture ratio is 100%, will discharges air-flow and be made as 100%.
When using the UBC method as the exhaust control method, the control section of each fume hood 1 (control module) 1d makes the test section 1e (detecting sensor) that is installed in the fume hood 1 determine whether that staff (operator) appears at the front of fume hood 1.When staff (operator) occurring, increase the discharge air-flow by regulating control damper 12.When the staff not occurring, will discharge air-flow and be reduced to the safe spare rank.
Data acquisition module 2 has periodically been represented the field data of each fume hood 1 mode of operation from the control module collection of fume hood 1 by gateway device 6 and router five.
Field data can include only instantaneous discharge air-flow, or comprises instantaneous discharge air-flow and window leaf aperture ratio, or comprise instantaneous discharge air-flow, window leaf aperture than and the testing result of detecting sensor (occur/or the staff do not occur).Collectable field data changes according to the form of fume hood 1.
The field data that server apparatus 3 is gathered data acquisition module 2 is stored among the storage inside part 3c (memory device).Server apparatus 3 is also according to field data, calculates the cupboard number that is used simultaneously, uses than, maximum air-flow and the safe clearance of discharging simultaneously at each predetermined instant.
All fume hoods 1 shown in Figure 1 all link to each other with single gas extraction system 9, thereby carry out exhaust.Exhaust fan 10 invests the end of gas extraction system 9.
The number of the cupboard that is used simultaneously be add up to n, with fume hood 1 that gas extraction system 9 links to each other in the number of the fume hood 1 that is being used.
Determine that method that whether each fume hood 1 be used changes according to the type of the field data that can collect from fume hood 1.The aperture that can determine its window leaf 11 is being used than the cupboard 1 that is equal to or greater than setting value.Alternatively, can determine that the cupboard 1 that its discharge air-flow is equal to or greater than setting value is being used.
By with being used the total n of the number of cupboard simultaneously, can be used ratio simultaneously divided by fume hood 1.
Maximum discharge the instantaneous discharge air-flow summation that air-flow is the fume hood 1 that links to each other with gas extraction system 9.Safe clearance is the difference between maximum capacity and the maximum capacity of design, and wherein designing maximum capacity is 9 maximums that can discharge air-flow of gas extraction system.
As a rule, the maximum air-flow of discharging of design is a given value.
Server apparatus 3 use when calculating the cupboard number, simultaneously use than, maximumly discharge air-flow and safe clearance is stored in storage inside part 3c (memory device) as actual value.
Server apparatus 3 also calculates ideal value together with actual value and this ideal value is stored among the storage inside part 3c (memory device).When each fume hood has the test section 1e of similar detecting sensor and so on, can access this ideal value.
Although detecting, the test section do not have the staff, set cupboard that window leaf 11 opens be the cupboard that is not used and have minimum discharge air-flow in, by calculate use simultaneously the number of cupboard, simultaneously use than, maximumly discharge air-flow and safe clearance obtains ideal value.
Server apparatus 3 is by router 8 and Intranet 7, and the maximum row of design is discharged the actual value of air-flow, maximum actual value of discharging air-flow and ideal value, safe clearance and ideal value, uses the actual value and the ideal value of cupboard number and use the actual value of ratio and ideal value to send to terminal device 4 simultaneously simultaneously.
Server apparatus 3 is also by router 8 and Intranet 7, with in advance as design maximum discharge target that air-flow reduces the desired value setting discharge air-flow, in advance as the actual value and the ideal value of the targeted security surplus of the desired value setting of safe clearance and use the actual value of cupboard target numbers and ideal value to send to terminal device 4 simultaneously as using cupboard number desired value that mark is set simultaneously in advance.
As mentioned above, discharge the fume hood that air-flow is equal to or greater than setting value than the fume hood 1 that is equal to or greater than setting value or those and be used by defining its window leaf aperture, can obtain the actual value (using the target numbers of cupboard simultaneously) of targeted security surplus.
Not having the staff although detecting sensor detects, is that the cupboard of opening 1 has the minimum air-flow of discharging by defining its window leaf 11, can obtain ideal value.
The terminal device 4 of operating the keeper of fume hood management system as shown in Figure 1 or using the staff of fume hood 1 to use each to link to each other with Intranet 7.Each terminal device 4 will be shown in display part 4d from the data that server apparatus 3 receives.Fig. 3 shows the data instance that is shown in terminal device 4.
In the example depicted in fig. 3, shown maximum actual value of discharging air-flow, maximum actual value of discharging air-flow and ideal value, safe clearance of design and ideal value, simultaneously use the cupboard number actual value and ideal value, use the actual value of ratio and ideal value, target to discharge air-flow, the actual value and the ideal value of targeted security surplus and actual value and the ideal value of using the cupboard target numbers simultaneously simultaneously, as the numerical value of expression safety index.
At each predetermined instant, server apparatus 3 calculating and sending are sent maximum discharge air-flow, safe clearance, are used the number of cupboard and use simultaneously to compare simultaneously.For this reason, to upgrade its show value all the time.
In the example depicted in fig. 3, the maximum that changes each time with diagrammatic representation is discharged the actual value and the ideal value of air-flow.When the actual value of safe clearance exceeded the actual value of targeted security surplus, server apparatus 3 calculated from exceeding and begins to exceed the actual value of time as the targeted security surplus to the time that finishes to consume.When the ideal value of safe clearance exceeded the ideal value of targeted security surplus, identical with the situation of actual value, server apparatus 3 calculated and exceeds the time of consumption, exceeds the ideal value of time as the targeted security surplus.
When the actual value of using the cupboard number simultaneously surpasses the target that is obtained by the actual value of using the cupboard target numbers simultaneously and uses the actual value of ratio simultaneously, server apparatus 3 calculates the time that begins to finishing consumption from exceeding, and uses simultaneously than the actual value that exceeds the time as target.
When the ideal value of using the cupboard number simultaneously surpasses the target that is obtained by the ideal value of using the cupboard target numbers simultaneously and uses the ideal value of ratio simultaneously, identical with the situation of actual value, server apparatus 3 calculates and exceeds the time of consumption, uses simultaneously than the ideal value that exceeds the time as target.
Server apparatus 3 exceeds the actual value of time and ideal value and target with the targeted security surplus that calculates to be used simultaneously than actual value that exceeds the time and ideal value and sends to terminal device 4.Each terminal device 4 shows the data that receive.
In the present embodiment, separation is provided with data acquisition module 2 and server apparatus 3.But, they can be integrated in the management equipment.Router five, gateway device 6 and router 8 are not essential all the time.Suitably change according to the network condition in each place and to be provided with.
As mentioned above, in the present embodiment, from each fume hood 1 collection site data, and used simultaneously than and safe clearance.Therefore, can obtain the quantized values data relevant with staff's safety, and security that can estimating system.
In addition, can determine system margin according to these data about exhaust fan 10 present speed.Therefore, can suitably determine to add how many fume hood reconstruction places, maybe when needing to add fume hood, whether also must increase the number of exhaust fan.According to the present invention, gather the data of having represented mode of operation from each fume hood 1.Use the number of cupboard simultaneously according to these data computation, that is, be used the number of cupboard.When the number that will use cupboard simultaneously is total divided by fume hood, can calculates and use ratio simultaneously.Can obtain and be used for determining that whether rationally or the quantized values data relevant with staff's safety design.Can determine whether handling safety of each fume hood according to these numeric datas.
Can grasp the essential measurement of safety operation quantitatively, and the numeric data that quantizes can be presented to the similar personnel of staff and use fume hood as the basis of safety education.In addition, the synchronous use ratio that calculates can be used as the master data in reconstruction place.
Utilize to determine that it is the fume hoods that are not used that its detecting sensor detects those fume hoods that those fume hoods of not having the staff and window leaf open, and calculates and uses ratio simultaneously.Use to liken to when using this calculating to be ideal value, can determine when the staff closes the window leaf that does not use fume hood, use simultaneously than descending, and the quantized values data are presented to staff and similar as the basis of safety education.
Gather the data of having represented mode of operation from each fume hood 1.According to the maximum air-flow of discharging of these data computation, that is, and the summation of the instantaneous discharge air-flow of these fume hoods.Therefore, can the computationally secure surplus, that is, design is maximum discharges air-flow and maximum difference of discharging between the air-flow, and can obtain the quantized values data relevant with staff's safety.In addition, can determine whether handling safety of each fume hood from these numeric datas.
In addition, can grasp the essential measurement of safer operation quantitatively, and the numeric data that quantizes can be presented to the similar personnel of staff and use fume hood as the basis of safety education.In addition, the synchronous use ratio that calculates can be used as the master data in reconstruction place.
Equal the predetermined minimum air-flow of discharging by setting the discharge air-flow that its detecting sensor detects the fume hood that those fume hoods of not having the staff and those window leaves open, can the computationally secure surplus.By using the safe clearance that calculates like this, can determine that when the staff closes the window leaf that does not use fume hood safe clearance increases, and the quantized values data are presented to staff and similar as the basis of safety education as ideal value.
Claims (9)
1. fume hood management system comprises:
Harvester (2d) is used for from the data of a plurality of fume hoods (1) collection expression mode of operation; And
Server apparatus (3), this server apparatus comprises arithmetic unit (3d), be used for calculating use ratio simultaneously according to the sum of cupboard number that uses simultaneously and fume hood, the cupboard number of the Shi Yonging data of gathering by described harvester (2d) obtain simultaneously, and this number has been represented the fume hood number that is being used.
2. system according to claim 1 is characterized in that also comprising a plurality of fume hoods (1), wherein each fume hood comprise the monitoring arrangement that is used for the supervisory work state (1b, 1e).
3. system according to claim 1 is characterized in that the sum of the number of described arithmetic unit (3d) by using cupboard simultaneously divided by fume hood, calculates and uses ratio simultaneously.
4. system according to claim 2, it is characterized in that described monitoring arrangement (1b 1e) comprises and is used for operator's checkout gear (1e) that detecting operation person occurs, and
It is the fume hoods that are not used that described arithmetic unit (3d) detects those fume hoods that those fume hoods of not having the staff and window leaf open by its operator's checkout gear (1e) of definition, calculate and to use ratio simultaneously, and this uses than being set to ideal value when calculating.
5. system according to claim 1 is characterized in that
Described arithmetic unit (3d) comprises
The maximum air-flow calculation element (3f) of discharging is used for according to the data that collect, and calculate as the maximum of the instantaneous discharge air-flow of described fume hood (1) summation and discharge air-flow, and
Safe clearance calculation element (3g), be used to calculate as described maximum air-flow and the maximum safe clearance of discharging difference between the air-flow of design of discharging, described design is maximum discharges the maximum discharge air-flow that gas extraction system (9) that air-flow represents to link to each other with described a plurality of fume hoods (1) can be discharged.
6. system according to claim 5, it is characterized in that described arithmetic unit (3d) equals the predetermined minimum air-flow of discharging by the discharge air-flow of setting its operator's checkout gear (1e) and detecting the fume hood that those fume hoods of not having the staff and those window leaves open, the computationally secure surplus, and this safe clearance is set to ideal value.
7. system according to claim 1, it is characterized in that also comprising the terminal device (4) that links to each other with described server apparatus (3) by communication network (7), described terminal device (4) comprises display unit (4d), is used to show described arithmetic unit (3d) operation result.
8. system according to claim 1 is characterized in that described server apparatus (3) comprises described data acquisition equipment (2) and described arithmetic unit (3d).
9. system according to claim 2 is characterized in that described fume hood (1) comprising:
Hood (1c) with movable window leaf, and
Aperture ratio sensor (1b) is used for the aperture ratio of detection window leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410007076 CN1660514A (en) | 2004-02-27 | 2004-02-27 | Ventilation cabinet management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410007076 CN1660514A (en) | 2004-02-27 | 2004-02-27 | Ventilation cabinet management system |
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| Publication Number | Publication Date |
|---|---|
| CN1660514A true CN1660514A (en) | 2005-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410007076 Pending CN1660514A (en) | 2004-02-27 | 2004-02-27 | Ventilation cabinet management system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040266A (en) * | 2012-01-20 | 2014-09-10 | 国际商业机器公司 | Energy efficient air flow control |
| CN108405544A (en) * | 2018-05-10 | 2018-08-17 | 北京天辰昊桦科技有限公司 | A kind of device of purification run area pollutant |
| CN109555405A (en) * | 2018-11-09 | 2019-04-02 | 青岛歌尔微电子研究院有限公司 | Intelligent vehicle window control method and Intelligent car window control system |
-
2004
- 2004-02-27 CN CN 200410007076 patent/CN1660514A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040266A (en) * | 2012-01-20 | 2014-09-10 | 国际商业机器公司 | Energy efficient air flow control |
| CN108405544A (en) * | 2018-05-10 | 2018-08-17 | 北京天辰昊桦科技有限公司 | A kind of device of purification run area pollutant |
| CN109555405A (en) * | 2018-11-09 | 2019-04-02 | 青岛歌尔微电子研究院有限公司 | Intelligent vehicle window control method and Intelligent car window control system |
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