CN207507954U - Face air velocity transducer device based on large-scale vent cabinet - Google Patents
Face air velocity transducer device based on large-scale vent cabinet Download PDFInfo
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- CN207507954U CN207507954U CN201721328712.1U CN201721328712U CN207507954U CN 207507954 U CN207507954 U CN 207507954U CN 201721328712 U CN201721328712 U CN 201721328712U CN 207507954 U CN207507954 U CN 207507954U
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- air velocity
- velocity transducer
- face air
- cabinet
- pedestal
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Abstract
The utility model discloses a kind of face air velocity transducer device based on large-scale vent cabinet, it is installed in the cabinet of large-scale vent cabinet, including face air velocity transducer and at least two pressure inductors, the face air velocity transducer is set to outside cabinet, the pressure inductor is installed on inside cabinet, the face air velocity transducer is set in pipeline connecting bracket, and the pressure inductor is connect by pipeline and pipeline connecting bracket with the face air velocity transducer.Multiple pressure inductors in large-scale cabinet are set, face air velocity transducer is passed to by acquiring the pressure in vent cabinet everywhere, and by the pressure value of many places, can more accurately measure the wind speed in vent cabinet, improve measurement accuracy.
Description
Technical field
The utility model belongs to face air velocity transducer technical field, and in particular to a kind of face wind speed based on large-scale vent cabinet
Sensor device.
Background technology
Laboratory ventilation is an indispensable component part in lab design.In order to make laboratory worker not
Suck or swallow should have in the chemical substance and organism, laboratory that some are toxic, can causing a disease or toxicity is unknown it is good
Ventilation.To prevent the absorption of some steams, gas and particle (smog, coal smoke, dust and aerosol), polluter must use ventilation
Cabinet, ventilator cowling or the method for local ventilation remove.Vent cabinet is that a kind of most common intermittent local ventilation, type are numerous in laboratory
More, due to its structure difference, the condition used is different, and exhaust effect also differs.The good ring of the performance of vent cabinet, mainly depends on
In the speed moved by vent cabinet air.Maximum purpose using vent cabinet is the pernicious gas generated in discharge experiment, is protected
Protect the health of experimenter, that is to say, that have the safety of height and superior operability.Since vent cabinet is in biochemical test
Occupy very important position in room, in order to improve working efficiency, facilitate the operation of large-scale experiment, vent cabinet inner space is continuous
It increases, the thing followed is the important topic that ventilation shaft, air draft etc. all becomes lab construction.Existing face air velocity transducer
It is set on the side plate or backboard of vent cabinet, but since vent cabinet inner space increases, is set to the face on side plate or backboard
Air velocity transducer cannot effectively measure the air quantity inside entire vent cabinet, therefore often cause measurement accuracy low.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of face air velocity transducer dress based on large-scale vent cabinet
Put, solve face air velocity transducer in the prior art measure air quantity in large-scale vent cabinet precision it is low the technical issues of.
In order to solve the above technical problems, the technical solution adopted in the utility model：A kind of face wind based on large-scale vent cabinet
Fast sensor device is installed in the cabinet of large-scale vent cabinet, it is characterised in that：Including face air velocity transducer and at least two
A pressure inductor, the face air velocity transducer are set to outside cabinet, and the pressure inductor is installed on inside cabinet, described
Face air velocity transducer is set in pipeline connecting bracket, the pressure inductor by pipeline and pipeline connecting bracket with it is described
Face air velocity transducer connection.
Further, the pipeline connecting bracket includes multi-pipeline connector, pedestal and upper cover, and the pedestal is provided with
The pedestal is fixedly connected by tubing string by tubing string with the multi-pipeline connector, and the upper cover is set on pedestal, and upper cover with
Pedestal forms an accommodating cavity, and the face air velocity transducer is fixed in the accommodating cavity body.
Further, the upper cover is enclosed structure by upper plate and side plate and is formed, and several fixations are provided on the upper plate
Column is provided with ventilation slot described at least one on side plate.
Further, partition board is additionally provided in the upper plate, the accommodating cavity is divided into first and accommodated by the partition board
Chamber and second accommodates chamber, and face air velocity transducer is fixed on described first and accommodates intracavitary, consolidates among the partition board at least provided with 1
Fixed column.
Further, correspond on the pedestal at fixed column position and be provided with several fixed strips, the fixed strip and institute
It states fixed column nesting the upper cover is fixed on the pedestal；Through-hole is provided in the pedestal, the through-hole is located at described
Second accommodates intracavitary.
Further, the pressure inductor is provided with 2, is respectively arranged at the left and right sides of the cabinet.
Further, the multi-pipeline connector be T-shaped three-way connection, comprising two imports on same pipeline and with into
The vertical outlet in mouth direction, the import of the T-shaped three-way connection connects the pipeline being connect with the pressure inductor, described T-shaped
Tubing string in the outlet connect base of three-way connection.
Further, the face air velocity transducer is pressure difference sensor.
The beneficial effects of the utility model：Multiple pressure inductors are set in large-scale cabinet, by acquiring in vent cabinet
Pressure everywhere, and the pressure value of many places is passed into face air velocity transducer, the wind speed in vent cabinet can be more accurately measured,
Improve measurement accuracy.
Description of the drawings
Fig. 1 is the structure diagram of face air velocity transducer device；
Fig. 2 is the partial structural diagram of face air velocity transducer device；
Fig. 3 is the structure diagram that T-shaped three-way connection is connect with pedestal；
Fig. 4 is the structure diagram of upper cover；
Fig. 5 is the assembling schematic diagram of face air velocity transducer device.
Reference numeral in figure, the differential face air velocity transducers of 1-；2- pressure inductors；3- cabinets；4- pipeline connecting brackets,
4.1-T type three-way connections, 4.1.1-T type three-way connection imports, the outlet of 4.1.2-T types three-way connection, 4.2- pedestals, 4.2.1- pipes
Column, 4.3- upper covers, 4.3.1- upper plates, 4.3.2- side plates, 4.3.3- fixed columns, 4.3.4- partition boards；5- houses cavity, 5.1-
One accommodates chamber, and 5.2- second accommodates chamber；6- ventilation slots；7- pipelines.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
A kind of face air velocity transducer device based on large-scale vent cabinet, is installed in the cabinet of large-scale vent cabinet, as Fig. 1~
Shown in 5, differential face air velocity transducer 1 and two pressure inductors 2 are specifically included, differential face air velocity transducer 1 is set
It outside cabinet 3, and is set at the top of cabinet, two pressure inductors 2 are installed on the left side plate inside cabinet 1.It needs
Illustrate, the pressure inside entire vent cabinet is measured using two pressure inductors in the present embodiment.If based on bigger
Vent cabinet or for the precision for further improving air-quantity measuring in vent cabinet, the pressure inductor inside vent cabinet can be set
It puts multiple, is respectively arranged in inside vent cabinet at multiple positions, with the pressure inside comprehensive detection vent cabinet, is surveyed so as to improve
Determine the precision of wind speed inside vent cabinet.Differential face air velocity transducer 1 is set in pipeline connecting bracket 4, in the present embodiment, root
According to 2 pressure inductors 2, pipeline connecting bracket 4 includes T-shaped three-way connection 4.1, pedestal 4.2 and upper cover 4.3, T-shaped threeway
Connector 4.1 is set comprising two import 4.1.1 on same pipeline and the outlet 4.1.2 vertical with import direction, pedestal 4.2
There is tubing string 4.2.1, be fixedly connected with pedestal 4.2 with the outlet 4.1.2 of T-shaped three-way connection by tubing string 4.2.1, T-shaped three connect
The import 4.1.1 of head connects the pipeline 7 being connect with two pressure inductors 2 respectively.Upper cover forms accommodating with pedestal fixing internal
Cavity 5.In the present embodiment, upper cover 4.3 is enclosed structure by upper plate 4.3.1 and side plate 4.3.2 and is formed, 4 tops of upper plate 4.3.1
1 fixed column 4.3.3 is respectively arranged at angle, partition board 4.3.4 is additionally provided among upper plate 4.3.1, partition board 4.3.4 will be housed
Cavity 5, which is divided into first and accommodates chamber 5.1 and second, accommodates chamber 5.2, and differential face air velocity transducer 1 is fixed on first and accommodates chamber 5.1
It is interior, 1 fixed column 4.3.3 is provided among partition board 4.3.4.Partition board in upper cover is set and fixed column is set in partition board, is made
Upper cover connect more secured with pedestal.Ventilation slot 6 is provided on 3 side plate 4.3.2 in upper cover 4.3, inside accommodating cavity 5
With the circulation of extraneous gas.Correspond on pedestal 4.2 at fixed column 4.3.3 positions and be provided with fixed strip 4.2.2, fixed strip
4.2.2 it is nested with fixed column 4.3.3 that upper cover 4.3 is fixed on pedestal 4.2；In the pedestal 4.2 of the second accommodating cavity 5.2
Through-hole 4.2.3 is additionally provided with, which can be such that ambient atmos flow into accommodating cavity body, make the survey of differential face air velocity transducer
Amount is more accurate.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain of profit requirement.
Claims (8)
1. a kind of face air velocity transducer device based on large-scale vent cabinet, is installed in the cabinet of large-scale vent cabinet, feature exists
In：Including face air velocity transducer and at least two pressure inductors, the face air velocity transducer is set to outside cabinet, institute
It states pressure inductor to be installed on inside cabinet, the face air velocity transducer is set in pipeline connecting bracket, the pressure sensitive
Device is connect by pipeline and pipeline connecting bracket with the face air velocity transducer.
2. face air velocity transducer device according to claim 1, it is characterised in that：The pipeline connecting bracket includes multi-pipeline
Connector, pedestal and upper cover, the pedestal are provided with tubing string, are fixed the pedestal and the multi-pipeline connector by tubing string
Connection, the upper cover are set on pedestal, and upper cover forms an accommodating cavity with pedestal, and the face air velocity transducer is fixed on institute
It states in accommodating cavity body.
3. face air velocity transducer device according to claim 2, it is characterised in that：The upper cover is enclosed by upper plate and side plate
Structure forms, and several fixed columns are provided on the upper plate, ventilation slot is provided on side plate described at least one.
4. face air velocity transducer device according to claim 3, it is characterised in that：Partition board is additionally provided in the upper plate,
The accommodating cavity is divided into first and accommodates chamber and second by the partition board accommodates chamber, and face air velocity transducer is fixed on described first and puts
Intracavitary is received, at least provided with 1 fixed column among the partition board.
5. face air velocity transducer device according to claim 4, it is characterised in that：Correspond to fixed column position on the pedestal
Place is provided with several fixed strips, and the fixed strip is nested with the fixed column to be fixed on the upper cover on the pedestal；It is described
Through-hole is provided in pedestal, the through-hole accommodates intracavitary positioned at described second.
6. face air velocity transducer device according to claim 2, it is characterised in that：The pressure inductor is provided with 2, point
It is not set to the left and right sides of the cabinet.
7. face air velocity transducer device according to claim 6, it is characterised in that：The multi-pipeline connector is connected for T-shaped three
Head, comprising two imports on same pipeline and the outlet vertical with import direction, the import of the T-shaped three-way connection connects
The pipeline being connect with the pressure inductor, the tubing string in the outlet connect base of the T-shaped three-way connection.
8. any one face air velocity transducer device according to claims 1 to 7, it is characterised in that：The face wind speed sensing
Device is pressure difference sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328712.1U CN207507954U (en) | 2017-10-16 | 2017-10-16 | Face air velocity transducer device based on large-scale vent cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328712.1U CN207507954U (en) | 2017-10-16 | 2017-10-16 | Face air velocity transducer device based on large-scale vent cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207507954U true CN207507954U (en) | 2018-06-19 |
Family
ID=62535443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721328712.1U Active CN207507954U (en) | 2017-10-16 | 2017-10-16 | Face air velocity transducer device based on large-scale vent cabinet |
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| CN (1) | CN207507954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112114167A (en) * | 2020-10-14 | 2020-12-22 | 中国计量科学研究院 | Airflow flow velocity detection and calibration device and system for biological safety cabinet |
-
2017
- 2017-10-16 CN CN201721328712.1U patent/CN207507954U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112114167A (en) * | 2020-10-14 | 2020-12-22 | 中国计量科学研究院 | Airflow flow velocity detection and calibration device and system for biological safety cabinet |
| CN112114167B (en) * | 2020-10-14 | 2022-05-10 | 中国计量科学研究院 | Airflow flow velocity detection and calibration device and system for biological safety cabinet |
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