CN203869885U - Evenly wind sending device - Google Patents
Evenly wind sending device Download PDFInfo
- Publication number
- CN203869885U CN203869885U CN201420208788.0U CN201420208788U CN203869885U CN 203869885 U CN203869885 U CN 203869885U CN 201420208788 U CN201420208788 U CN 201420208788U CN 203869885 U CN203869885 U CN 203869885U
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- CN
- China
- Prior art keywords
- urceolus
- plate
- plenum chamber
- flow equalizing
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Ventilation (AREA)
Abstract
The utility model discloses an evenly wind sending device. The evenly wind sending device comprises a PLC, a rack, an outer cylinder arranged on the rack, a variable-frequency draught fan fixedly arranged on the inner tail part of the outer cylinder, a first flow equalizing plate, a second flow equalizing plate and an division plate; the first flow equalizing plate and the second flow equalizing plate are separately fixedly arranged in an outer cylinder arranged in front of the variable-frequency draught fan; the division plate is arranged between the first flow equalizing plate and the second flow equalizing plate and a plurality of spraying nozzle flow meters are arranged on the division plate; differential pressure gauges are respectively arranged at the second flow equalizing plate and at the division plate; a front wind outlet of the outer cylinder is fixedly connected with a plenum chamber; and a pressure sensor is arranged at the front wind outlet of the outer cylinder or in the plenum chamber. The evenly wind sending device is highly automatic, participation of people can be reduced to the utmost, and precision of key points of an experiment is ensured, so precision of data measured during the whole process is ensured, and design and production of a filtering unit are effectively guaranteed.
Description
Technical field
The utility model relates to air purifying process field, particularly relates to a kind of balanced ventilation device that balanced ventilation can be provided.
Background technology
It between the parameters such as the air quantity in filter element performance, blast, is interrelated mutual restriction.Improve a certain performance parameter, just will certainly reduce another part performance parameter.Generally, the air quantity of filter element represents with filter element sectional wind velocity.According to request for utilization sectional wind velocity, just should be 0.45m/s ± 20% comparatively reasonable, therefore be about 900-1000m for the air quantity of the filter element of conventional 1175mm*575mm*275mm
3/ h.
Simultaneously, in order to guarantee the normal use of filter element, its overbottom pressure is preferably 80-120Pa, in filter unit designs production run, traditional airflow pressure experiments of measuring, is rotated by FFU frequency conversion fan oneself, measuring pressure and air quantity after filtrator outlet air surface, be easy to the variable effect experimental result by external environment condition, cannot guarantee the reliability of filter element airflow pressure experiment, so the balanced ventilation device of balanced ventilation is provided with regard to a kind of Neng Wei filter element of needs testing agency.
Utility model content
The purpose of this utility model is for the technological deficiency existing in prior art, and provides a kind of for measuring the balanced ventilation device of filter element airflow pressure testing agency.
For realizing the technical scheme that the purpose of this utility model adopts, be:
A kind of balanced ventilation device, comprise PLC, frame, be fixedly installed on the urceolus on frame, be fixedly installed on the frequency conversion fan of afterbody in urceolus, compartment of terrain is fixedly installed on the first homogenizing plate and the second homogenizing plate in the urceolus of frequency conversion fan the place ahead, be arranged between the first homogenizing plate and the second homogenizing plate and on it, be provided with the dividing plate of a plurality of nozzle flowmeters, described the second homogenizing plate and dividing plate place are respectively arranged with differential manometer, the front air outlet of described urceolus is fixedly connected with plenum chamber, simultaneously in the front air outlet place of described urceolus or plenum chamber, be provided with pressure transducer.
At described urceolus air inlet place, be provided with air feed shutter variable valve.
The air outlet place of described urceolus is provided with air-out blinds variable valve, is provided with differential manometer at described air-out blinds variable valve place simultaneously.
On described dividing plate, be provided with 3-6 the nozzle flowmeter that diameter is different.
Opening part at described plenum chamber is provided with it clamping ring communicatively, and described clamping ring is fixedly connected with frame, and described clamping ring is provided with O-ring seal with the plenum chamber phase back side.
Compared with prior art, the beneficial effects of the utility model are:
Balanced ventilation device of the present utility model, automaticity is high, can reduce to greatest extent artificial participation, has guaranteed the accurate of each experiment key point, thereby guaranteed measured data in whole process accurately, for design and the production of filter element provides sound assurance.
Accompanying drawing explanation
Figure 1 shows that structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, balanced ventilation device of the present utility model comprises frame 100, be fixedly installed on the urceolus 1 on frame 100, be fixedly installed on afterbody in urceolus and with the described controlled frequency conversion fan being connected 7 of PLC, be fixedly installed in described urceolus and be provided with the air-out dividing plate 110 of the through hole corresponding with described frequency conversion fan air outlet, compartment of terrain is fixedly installed on the first homogenizing plate 120 and the second homogenizing plate 130 in the urceolus of frequency conversion fan the place ahead, be arranged on the first homogenizing plate 120 and 130 of the second homogenizing plates and on it, be provided with the dividing plate 140 of 3-6 nozzle flowmeter 9, wherein, each nozzle flowmeter can adopt different-diameter to adapt to different air quantity demands, be arranged on the air feed shutter variable valve 150 of described urceolus air inlet, described air feed shutter variable valve is in order to coordinate frequency conversion fan to realize the control of intake, the air outlet place of described urceolus is provided with to simulate filter element by the air-out blinds variable valve 160 of dust blocked state, wherein, at described air-out blinds variable valve, the second homogenizing plate is respectively arranged with dividing plate place the differential manometer 10 being connected with described PLC signal, described differential manometer two measuring junctions respectively with air-out blinds variable valve, the cavity of the second homogenizing plate or dividing plate both sides is communicated with, be used for obtaining both sides pressure reduction, , air-out blinds variable valve, the second homogenizing plate and dividing plate are divided into a plurality of chambeies that are connected urceolus, by the pressure reduction obtaining between chambeies at different levels, change, can effectively realize blast controls, the front air outlet of described urceolus is fixedly connected with plenum chamber 14, in the front air outlet place of described urceolus or plenum chamber, be provided with the pressure transducer 8 being connected with described PLC signal.
Wherein, differential pressure pickup detects the outer overbottom pressure of machine of filter element, and feed back to programmable controller, by program FEEDBACK CONTROL frequency conversion fan, thereby control frequency conversion fan running, jointly make with tested filter element that plenum chamber is inner produces pressure, and then making frequency conversion fan, constant what operate in that a certain rotating speed makes pressure transducer feedback is setting value, the measured value that this setting value is filter element.
The front end of described plenum chamber is formed with opening, at described opening part, be provided with communicatively with it clamping ring 140, described clamping ring is fixedly connected with frame, simultaneously, edge's O-ring seal at clamping ring with the plenum chamber phase back side, described O-ring seal is corresponding with the outer edge of filter element to be detected, can realize like this filter element contacts with the sealing of clamping ring, adopt being tightly connected of clamping ring and filter element simultaneously, avoided clamping the impact on plenum chamber, clamping ring also can detect to adapt to the filter element of different model in convenient dismounting simultaneously.
The utility model produces air pressure by frequency conversion fan, then after the first homogenizing plate, arrive at dividing plate, and by the laggard row air measuring of the flow monitoring nozzle on dividing plate, then by the second homogenizing plate is laggard, enter plenum chamber, can effectively guarantee the precision of air measuring and wind pressure measurement, guarantee air-supply effect.
To sum up, the utility model adopts robotization gear train automatically to compress or loosens filter element or high efficiency particle air filter, the mode that adopts PLC and each sensor to coordinate is controlled frequency conversion fan and is continued air-supply with a certain rotating speed, adopt programmable controller (PLC) to process the data of real-time monitoring and the air quantity of tested filter element or air strainer simultaneously, the parameters such as blast, reduce to greatest extent interference from human factor test result in test process, test more accurately the performance of filter element and high efficiency particle air filter, for the design of filter element and produce and ensure.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a balanced ventilation device, it is characterized in that, comprise PLC, frame, be fixedly installed on the urceolus on frame, be fixedly installed on the frequency conversion fan of afterbody in urceolus, compartment of terrain is fixedly installed on the first homogenizing plate and the second homogenizing plate in the urceolus of frequency conversion fan the place ahead, be arranged between the first homogenizing plate and the second homogenizing plate and on it, be provided with the dividing plate of a plurality of nozzle flowmeters, described the second homogenizing plate and dividing plate place are respectively arranged with differential manometer, the front air outlet of described urceolus is fixedly connected with plenum chamber, simultaneously in the front air outlet place of described urceolus or plenum chamber, be provided with pressure transducer.
2. balanced ventilation device as claimed in claim 1, its feature exists, and at described urceolus air inlet place, is provided with air feed shutter variable valve.
3. balanced ventilation device as claimed in claim 1, its feature exists, and the air outlet place of described urceolus is provided with air-out blinds variable valve, is provided with differential manometer at described air-out blinds variable valve place simultaneously.
4. balanced ventilation device as claimed in claim 1, its feature exists, and is provided with 3-6 the nozzle flowmeter that diameter is different on described dividing plate.
5. balanced ventilation device as claimed in claim 1, its feature exists, and at the opening part of described plenum chamber, is provided with communicatively with it clamping ring, and described clamping ring is fixedly connected with frame, and described clamping ring is provided with O-ring seal with the plenum chamber phase back side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208788.0U CN203869885U (en) | 2014-04-25 | 2014-04-25 | Evenly wind sending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208788.0U CN203869885U (en) | 2014-04-25 | 2014-04-25 | Evenly wind sending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203869885U true CN203869885U (en) | 2014-10-08 |
Family
ID=51650825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420208788.0U Expired - Lifetime CN203869885U (en) | 2014-04-25 | 2014-04-25 | Evenly wind sending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203869885U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676808A (en) * | 2015-03-10 | 2015-06-03 | 中国安全生产科学研究院 | Balanced ventilation device with rear-mounted blower in blowing and suction type ventilation system |
| CN105344691A (en) * | 2015-11-13 | 2016-02-24 | 广西中海环境工程系统有限公司 | Dust pump drainage device for sesame screening |
| CN116890015A (en) * | 2023-09-04 | 2023-10-17 | 山东省十里香芝麻制品股份有限公司 | Sesame processing is with screening dust drainage device |
-
2014
- 2014-04-25 CN CN201420208788.0U patent/CN203869885U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104676808A (en) * | 2015-03-10 | 2015-06-03 | 中国安全生产科学研究院 | Balanced ventilation device with rear-mounted blower in blowing and suction type ventilation system |
| CN104676808B (en) * | 2015-03-10 | 2017-08-11 | 中国安全生产科学研究院 | A kind of rear-mounted balanced ventilation device of blowing and drawing ventilation system blower |
| CN105344691A (en) * | 2015-11-13 | 2016-02-24 | 广西中海环境工程系统有限公司 | Dust pump drainage device for sesame screening |
| CN116890015A (en) * | 2023-09-04 | 2023-10-17 | 山东省十里香芝麻制品股份有限公司 | Sesame processing is with screening dust drainage device |
| CN116890015B (en) * | 2023-09-04 | 2023-11-17 | 山东省十里香芝麻制品股份有限公司 | Sesame processing is with screening dust drainage device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190527 Address after: 300384 Tianjin Huayuan Industrial Zone (Outside the Ring) No. 3, Haitai Huake Road Patentee after: Tianjin Longchuan Purification Engineering Co., Ltd. Address before: 300384 Tianjin Binhai New Area Tianjin High-tech Zone Huayuan Industrial Zone (Outside Rim) Haitai Huake Road No. 3 Patentee before: Tianjin Longchuan Jinggong Clean Technology Development Co., Ltd. |
|
| TR01 | Transfer of patent right |