CN208984653U - Air quantity shield - Google Patents
Air quantity shield Download PDFInfo
- Publication number
- CN208984653U CN208984653U CN201821525254.5U CN201821525254U CN208984653U CN 208984653 U CN208984653 U CN 208984653U CN 201821525254 U CN201821525254 U CN 201821525254U CN 208984653 U CN208984653 U CN 208984653U
- Authority
- CN
- China
- Prior art keywords
- air quantity
- wind speed
- fan housing
- speed matrix
- measurement
- 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.)
- Active
Links
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model relates to a kind of air quantity shields, including fan housing, measurement pedestal, air quantity acquisition system, support rod, wind speed matrix.Water conservancy diversion grid built in fan housing, measurement base shape is identical as fan housing cross sectional shape and universal outlet air mouth-shaped, and wind speed matrix is that metal tube is fixed, to enhance the stability and measurement accuracy of air measuring value；Simultaneously measure pressure difference, temperature, humidity, atmospheric pressure, with reduce formula calculate caused by error.The measurement accuracy, stability and repeatability of existing air quantity shield is greatly improved, is suitable for popularization and application.
Description
Technical field
The utility model relates to detecting instruments, in particular to a kind of air quantity that airflow value in a kind of physical measurement field measures
Cover.
Background technique
Currently, central air-conditioning system is widely used in indoor spaces, wherein dustless, biological, chemical, Health Service Laboratory and
Workshop, reserve storage etc. have strict demand to indoor airflow value.Air quantity shield makes as a kind of air outlet air volume test equipment
With convenient, measurement is accurate, solves that air outlet position in central air-conditioning system is limited, the air-flow at air outlet is complicated, diffusing
Device formula air port is difficult to accurately acquire the larger problem of the measurement such as air quantity work difficulty.
The air quantity shield of the producer of domestic production at present manufacture has the following problems:
1. due in central air-conditioning system air outlet air quantity by factors such as position, built-in pipe design, air diffuser shapes,
Lead to air turbulence at air outlet, airflow value measurement is unstable, and measurement error is big.
2. the measurement of air quantity is influenced by temperature, humidity, atmospheric pressure, and existing domestic air quantity shield not to temperature, humidity,
Atmospheric pressure effectively, accurately measure.
3. measurement pedestal measuring section section is mostly circle, it is not inconsistent with fan housing cross sectional shape and universal outlet air mouth-shaped,
Cause measuring section wind speed unstable, increases measurement error.
4. wind speed matrix and measurement pedestal are mostly the soft connection of spring, wind speed matrix and air quantity acquisition system are mostly hose
Connection causes wind speed when measurement that can generate interference because of wind speed matrix and hose shaking due to.
Summary of the invention
Goal of the invention: in order to overcome the shortcomings of the above technology, the utility model provides a kind of air quantity shield, is led by having
The fan housing of grid is flowed, the introducing that the wind of tested air outlet is uniform, gentle measures pedestal, while measuring base shape and fan housing section
Face shape is identical with universal outlet air mouth-shaped, enhances the stability of tested wind；Wind speed matrix is that metal tube is fixed, and reduces and surveys
Intersegmental part part is measured to shake and generate interference to measured value；Air quantity acquisition system is built-in with differential pressure pickup, temperature sensor, wet
Sensor, barometric pressure sensor are spent, pressure difference, temperature, humidity, atmospheric pressure are accurately measured, is reduced because of Wind Coverage Calculation
When generate error and influence final testing result, thus reach propose high-precision purpose.
Technical solution:
A kind of air quantity shield, including measurement pedestal and coupled fan housing；
Position is fixed with wind speed matrix among the measurement pedestal；
Air quantity acquisition system is connected on the wind speed matrix；
The air quantity acquisition system is built-in with differential pressure pickup, temperature sensor, humidity sensor, atmospheric pressure sensing
Device, processing module and touch screen；
The fan housing opening expands relative to measurement pedestal, has support rod on the inside of four ribs of fan housing.
There are multiple air quantity acquisition ports in the wind speed matrix；There is water conservancy diversion grid in the fan housing.
The water conservancy diversion grid is the 16 palace lattice divided equally；It is corresponded with 16 air quantity acquisition ports in wind speed matrix.
The air quantity acquisition system is connect with wind speed matrix with stainless steel tube.
Advantage and effect:
This air quantity shield of the utility model, has the following advantages and beneficial effects:
1 effectively raises measurement accuracy；
2 effectively raise the stability and repeatability of measured value.
Detailed description of the invention:
Fig. 1 is the assembling schematic diagram of the utility model.
Fig. 2 is the utility model fan housing structure schematic diagram.
Fig. 3 is the utility model wind speed matrix structure schematic diagram.
Description of symbols:
1, fan housing, 2, measurement pedestal, 3, air quantity acquisition system, 4, support rod, 5, wind speed matrix.
Specific embodiment:
The utility model is described further with reference to the accompanying drawing:
The utility model is a kind of air quantity shield, as shown in Figure 1, Figure 2 and Figure 3, it is characterised in that: fan housing 1, measurement pedestal 2,
Air quantity acquisition system 3, support rod 4, wind speed matrix 5；In the fixed wind speed matrix 5 in the measurement intermediate position of pedestal 2；Air quantity acquisition system
3 connect with wind speed matrix 5, are fixed；Fan housing 1 and the measurement connection suitable for reading of pedestal 2, are supported with support rod 4 and are fixed.
Water conservancy diversion grid built in fan housing 1, water conservancy diversion grid is the 16 palace lattice divided equally, with 16 air quantity acquisition ports in wind speed matrix 5
It corresponds.
Air quantity acquisition system 3 is built-in with differential pressure pickup, temperature sensor, humidity sensor, barometric pressure sensor, tool
There are the software processing module and touch screen of processing function.
After wind speed matrix 5 is fixed on measurement pedestal 2, wind speed matrix 5 is without shaking phenomenon, air quantity acquisition system 3 and wind speed square
Battle array 5 is connected with stainless steel tube, no shaking phenomenon.
Measurement 2 measuring section section of pedestal is square, identical as fan housing cross sectional shape and universal outlet air mouth-shaped.
When utility model works:
After first differential pressure pickup is zeroed, according to field condition, the fan housing of suitable dimension is selected, by air quantity shield upper end fan housing
Mouth, which is placed on, is detected position at air port, is close to wall on the outside of air outlet；Start button on point touching screen, sensor is adopted
The data of collection carry out signal conversion and formula operation by air quantity acquisition system, to realize real-time air quantity, pressure difference, temperature
Degree, humidity, atmospheric pressure value and time of measuring are shown in screen；Measurement end key is clicked, will show average air quantity, mean pressure
Difference, mean temperature, medial humidity and atmospheric pressure value；Computer is connected, the data of acquisition can be achieved by software kit,
Analysis, printing examining report.
Claims (4)
1. a kind of air quantity shield, it is characterised in that: including measurement pedestal (2) and coupled fan housing (1)；
The intermediate position of the measurement pedestal (2) is fixed with wind speed matrix (5)；
Air quantity acquisition system (3) are connected on the wind speed matrix (5)；
The air quantity acquisition system (3) be built-in with differential pressure pickup, temperature sensor, humidity sensor, barometric pressure sensor,
Processing module and touch screen；
Fan housing (1) opening expands relative to measurement pedestal (2), has support rod (4) on the inside of (1) four rib of fan housing.
2. air quantity shield according to claim 1, it is characterised in that: have multiple air quantity acquisition ports in the wind speed matrix (5)；Institute
Stating in fan housing (1) has water conservancy diversion grid.
3. air quantity shield according to claim 2, it is characterised in that: the water conservancy diversion grid is the 16 palace lattice divided equally；With wind speed square
16 air quantity acquisition ports correspond in battle array (5).
4. air quantity shield according to claim 1, it is characterised in that: the air quantity acquisition system (3) and wind speed matrix (5) are not with
The steel pipe that becomes rusty connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821525254.5U CN208984653U (en) | 2018-09-18 | 2018-09-18 | Air quantity shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821525254.5U CN208984653U (en) | 2018-09-18 | 2018-09-18 | Air quantity shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208984653U true CN208984653U (en) | 2019-06-14 |
Family
ID=66784596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821525254.5U Active CN208984653U (en) | 2018-09-18 | 2018-09-18 | Air quantity shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208984653U (en) |
-
2018
- 2018-09-18 CN CN201821525254.5U patent/CN208984653U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201327427Y (en) | Temperature and humidity measurement calibrating device | |
| CN104048808A (en) | Dynamic entropy probe | |
| CN201548557U (en) | Wind speed wind and wind quantity measuring device | |
| CN203516161U (en) | Fan field test device based on five-hole pneumatic probe | |
| CN102133496B (en) | Dust filtering performance testing method and system of air filter for cab of vehicle on road | |
| CN107677317A (en) | Flue dust gas sampling comprehensive detection system | |
| CN201876423U (en) | Multi-passage formaldehyde quick detecting device capable of continuously measuring on site and portable box thereof | |
| CN207717129U (en) | A kind of flue dust gas sampling comprehensive detection system | |
| CN208984653U (en) | Air quantity shield | |
| RU2511022C2 (en) | Method of multi-criteria assessment of comfort of working area in production premises | |
| CN104406794A (en) | Experimental device for detecting aeroengine guider | |
| CN209400381U (en) | A kind of dust concentration detection device convenient for sampling calibration | |
| CN207507954U (en) | Face air velocity transducer device based on large-scale vent cabinet | |
| CN208013032U (en) | A kind of micro- station sensor of the air of diffusion type air detection | |
| CN201083746Y (en) | Flue gas moisture content automatic tester | |
| CN202471192U (en) | Rapid water meter calibrating device | |
| CN201662567U (en) | Tubular differential pressure flow control system used for gas chromatograph | |
| CN207096032U (en) | Intelligent densitometer | |
| CN111189743A (en) | Experimental device for measuring content of carbonate in soil and operation method | |
| CN212871313U (en) | Laboratory is with little biological fermentation condition detection device | |
| CN209570292U (en) | A kind of multilist parallel connection pressure test platform | |
| CN207248695U (en) | Soil gas conductivity detector after one kind is poured water | |
| CN218099095U (en) | Detection device for detecting environment occurrence | |
| CN221038941U (en) | Gas leakage calibration instrument | |
| CN211824487U (en) | Sensor collection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220418 Address after: 110000 No. 6, 2nd Street, Shenyang Economic and Technological Development Zone, Tiexi District, Shenyang City, Liaoning Province Patentee after: North test alliance Testing Technology (Liaoning) Co.,Ltd. Address before: No.68 Pangjiang Street Dadong District Shenyang Liaoning 110000 Patentee before: NORTH CMA TECHNOLOGY CO.,LTD. |