CN207248254U - A kind of apparatus for measuring air quantity - Google Patents
A kind of apparatus for measuring air quantity Download PDFInfo
- Publication number
- CN207248254U CN207248254U CN201720668645.1U CN201720668645U CN207248254U CN 207248254 U CN207248254 U CN 207248254U CN 201720668645 U CN201720668645 U CN 201720668645U CN 207248254 U CN207248254 U CN 207248254U
- Authority
- CN
- China
- Prior art keywords
- pressure
- ram
- air
- air quantity
- air pipe
- 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
- Measuring Volume Flow (AREA)
Abstract
It the utility model is related to fluid measurement technical field, more particularly to a kind of apparatus for measuring air quantity.A kind of apparatus for measuring air quantity disclosed in the utility model, including independently arranged ram-air pipe and static tube；Ram-air pipe is arranged at the air-flow upstream position of tested pipeline, for detecting the pressure of air-flow windward side；Static tube is arranged at the airflow downstream position of tested pipeline, for detecting the pressure of air-flow leeward.The apparatus for measuring air quantity of the utility model, due to using independent ram-air pipe and static tube, simplifies structure, reduces processing request and difficulty of processing, and can facilitate and be connected with secondary meter.
Description
Technical field
It the utility model is related to fluid measurement technical field, more particularly to a kind of apparatus for measuring air quantity.
Background technology
In fluid measurement especially air measuring field, a kind of mean velocity tube flowmeter is often used.Even speed tube stream
Gauge is the measuring principle using Pitot tube, by measuring the pressure formed between the total pressure of block body upstream and the static pressure in downstream
Difference, and calculated according to Bernoulli equation, so as to achieve the purpose that to measure flow.
At present, mean velocity tube flowmeter due to it with simple installation, crushing is small, intensity is high, from effect of attrition, No leakage
The advantages that, and as the ideal product of replacement orifice flowmeter.Existing mean velocity tube flowmeter can be widely used for industrial and mining enterprises
The flow measurement of blast furnace gas, compressed air, steam and gas.
But existing mean velocity tube flowmeter employs bimetallic tube welding or a material all in one piece processing is in pairs in design
Passage, is respectively used to the total head and static pressure of detection even speed tube front portion, and pressure transmission is measured to secondary meter.It is although existing
The cross section of some mean velocity tube flowmeters, which may have, to be of a variety of shapes, but inside is all divided into two passages.In order to ensure
The accuracy and stability of flow measurement, the generally surface configuration to mean velocity tube flowmeter and machining accuracy have very high want
Ask, so as to cause that difficulty is all bigger in process due to above two structure, it is therefore desirable to which professional manufacturer is
The product of qualification can be produced.
The problem of for mean velocity tube flowmeter of the prior art, it is desirable to provide one kind is simple in structure, processing request is low simultaneously
And the apparatus for measuring air quantity being easily worked.
The content of the invention
To solve the above problems, the utility model provides a kind of apparatus for measuring air quantity, due to using independent ram-air pipe and
Static tube, simplifies structure, reduces processing request and difficulty of processing, and can facilitate and be connected with secondary meter.
To achieve the above object, a kind of apparatus for measuring air quantity of the utility model, including independently arranged ram-air pipe and quiet
Pressure pipe；
Ram-air pipe is arranged at the air-flow upstream position of tested pipeline, for detecting the pressure of air-flow windward side；
Static tube is arranged at the airflow downstream position of tested pipeline, for detecting the pressure of air-flow leeward.
Preferably, multiple first pressure ports are uniformly provided with ram-air pipe vertically, the first pressure port is towards tested pipeline
Airflow direction is set.
Preferably, the axial direction of the first pressure port is parallel with airflow direction.
Preferably, one end closing of ram-air pipe, the other end are the first output being connected with the high pressure detection mouth of secondary meter
Mouthful.
Preferably, multiple second pressure ports are uniformly provided with static tube vertically, the second pressure port is back to tested pipeline
Airflow direction is set.
Preferably, the axial direction of the second pressure port is parallel with airflow direction.
Preferably, one end closing of static tube, the other end are the second output being connected with the low pressure detection mouth of secondary meter
Mouthful.
Preferably, ram-air pipe and static tube are arranged in parallel in tested pipeline and are respectively perpendicular to airflow direction.
Preferably, ram-air pipe and static tube is angled is arranged in tested pipeline and is respectively perpendicular to airflow direction.
The apparatus for measuring air quantity of the utility model, different from using bimetallic tube welding or a material all in one piece processing in the prior art
Into twin-channel structure, using independent two pipelines of ram-air pipe and static tube, the groundwork of differential pressure flowmeter was both met
Principle, in turn simplify structure, and production and processing is convenient, easily reaches processing request, simple installation, flexibly, and with pressure damage
The features such as small, apparatus for measuring air quantity intensity is high is lost, can also meet the application under special operation condition.Further, since ram-air pipe and quiet
Pressure pipe is independently arranged, therefore is conveniently attached with secondary meter.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model apparatus for measuring air quantity；
Fig. 2 is the occupation mode schematic diagram in the utility model apparatus for measuring air quantity embodiment one；
Fig. 3 is the occupation mode schematic diagram in the utility model apparatus for measuring air quantity embodiment two.
Description of reference numerals：1st, ram-air pipe；101st, the first pressure port；102nd, the first delivery outlet；2nd, static tube；201st, second
Pressure port；202nd, the second delivery outlet.
Embodiment
Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawings and examples.Following reality
Apply example to be used to illustrate the utility model, but be not intended to limit the scope of the present invention.
In the description of the utility model, it is to be understood that term " on ", " under ", vertical ", " level ", " top ",
The orientation or position relationship of the instruction such as " bottom " " interior ", " outer " are based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description, rather than indicate or imply that signified device or element must be with specifically square
Position, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " first ",
" second " is only used for description purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment one
As shown in Figure 1, a kind of apparatus for measuring air quantity of the utility model, including two independently arranged ram-air pipes 1 and quiet
Pressure pipe 2, due to that need not be welded to bimetallic tube or a material all in one piece is processed into twin-channel structure, can not only drop
Low difficulty of processing and required precision, can also facilitate and be attached with secondary meter, and installation is simple, using flexible.Gas in Fig. 1
Stream flow direction is set according to the direction shown in arrow in figure, i.e. the left side of tested pipeline is air-flow upstream position, the right side of tested pipeline
Side is airflow downstream position, and direction is towards the airflow direction that the left side of tested pipeline is towards tested pipeline, and direction is towards right side
For back to the airflow direction of tested pipeline.
Wherein, ram-air pipe 1 is arranged at the air-flow upstream position of tested pipeline, for detecting the pressure of air-flow windward side.Entirely
Multiple first pressure ports 101, the quantity of the first pressure port 101, according to apparatus for measuring air quantity are uniformly provided with pressure pipe 1 vertically
Precision setting, quantity is more, and precision is higher.The airflow direction of first pressure port 101 towards tested pipeline is set, and the first pressure
The axial direction in hole 101 is parallel with airflow direction, for more accurately obtaining windward side total head pressure.One end closing of ram-air pipe 1, separately
One end is the first delivery outlet 102 being connected with the high pressure detection mouth of secondary meter, and first delivery outlet 102 is relative to static tube 2
And it is independent, therefore can facilitate and be connected with secondary meter, it is not easy to produce interference between static tube 2.
Static tube 2 is arranged at the airflow downstream position of tested pipeline, for detecting the pressure of air-flow leeward.Static tube 2
On be uniformly provided with multiple second pressure ports 201, the quantity of the second pressure port 201, according to the precision of apparatus for measuring air quantity vertically
Set, quantity is more, and precision is higher.The airflow direction of second pressure port 201 back to tested pipeline is set, and the second pressure port
201 axial direction is parallel with airflow direction, for more accurately obtaining by wind face static pressure pressure.One end closing of static tube 2, it is another
The second delivery outlet 202 being connected for the low pressure detection mouth with secondary meter is held, second delivery outlet 202 is relative to ram-air pipe 1
It is independent, therefore can facilitates and be connected with secondary meter, is not easy to produce interference between ram-air pipe 1.
In the present embodiment, as shown in Fig. 2, ram-air pipe 1 and static tube 2 are arranged in parallel in tested pipeline and are respectively perpendicular
In airflow direction.When air-flow flows through tested pipeline, a high pressure distribution can be all produced in ram-air pipe 1 and 2 windward side of static tube
Area, its pressure be higher than 2 leeward of ram-air pipe 1 and static tube static pressure, as long as by the first pressure port 101 of ram-air pipe 1 towards
Windward side, the second pressure port 201 of static tube 2 back to windward side, then two measurement pipe institute pressure power be respectively just total pressure and
Static pressure, the total pressure and static pressure taken are divided by the first delivery outlet 102 and the second delivery outlet 202 that stretch out pipeline respectively again
Not Jie Ru secondary meter high-pressure mouth and low pressure port, so as to detect the flow calculated in pipeline.
Additionally, it is preferred that, the installation site of ram-air pipe 1 and static tube 2 answers Energizer close (along airflow direction), ensures as far as possible
Ram-air pipe 1 is consistent with the total head of the windward side of static tube 2, the static pressure of leeward is consistent, to improve the precision of measurement.And detecting
In the case that required precision is relatively low, it can also be installed larger distance away, as long as disclosure satisfy that the precision of measurement.
Embodiment two
The principle of the present embodiment two is identical with embodiment one, and structure is similar to embodiment one, it is differed only in, such as Fig. 3
It is shown, ram-air pipe 1 and static tube 2 is angled is arranged in tested pipeline and is respectively perpendicular to airflow direction.Above-mentioned angle can be with
Set according to being actually needed, generally in the range of XX.By the 2 angled setting of ram-air pipe 1 and static tube, can not only be more convenient
Ground connects the first delivery outlet 102 with the second delivery outlet 202 respectively at the high-pressure mouth of secondary meter with low pressure port, and reduces the
Interfering with each other between one delivery outlet 102 and the second delivery outlet 202.Further, since after angled setting, ram-air pipe 1 and static pressure
Pipe 2 reduces along the mutual shielded area of airflow direction, it is possible to reduce the total head of the total head of ram-air pipe 1 and static pressure and static tube 2 and quiet
Interfering with each other between pressure, can more improve the measurement accuracy and accuracy of apparatus for measuring air quantity.
In conclusion the apparatus for measuring air quantity of the present invention, had not only met the basic functional principle of differential pressure flowmeter, but also simplify
Structure, production and processing is convenient, easily reaches processing request, simple installation, flexibly, and with the pressure loss is small, air quantity is surveyed
The features such as device intensity is high is measured, can also meet the application under special operation condition.
More than, be only the utility model schematic description, it will be recognized by those skilled in the art that without departing from this practicality
On the basis of new operation principle, a variety of improvement can be made to the utility model, this belongs to the protection of the utility model
Scope.
Claims (9)
1. a kind of apparatus for measuring air quantity, it is characterised in that including independently arranged ram-air pipe and static tube；
The ram-air pipe is arranged at the air-flow upstream position of tested pipeline, for detecting the pressure of air-flow windward side；
The static tube is arranged at the airflow downstream position of the tested pipeline, for detecting the pressure of air-flow leeward.
2. apparatus for measuring air quantity according to claim 1, it is characterised in that be uniformly provided with vertically on the ram-air pipe more
A first pressure port, the airflow direction of first pressure port towards the tested pipeline are set.
3. apparatus for measuring air quantity according to claim 2, it is characterised in that the axial direction of first pressure port and the gas
It is parallel to flow direction.
4. apparatus for measuring air quantity according to claim 1, it is characterised in that one end closing of the ram-air pipe, the other end
The first delivery outlet being connected for the high pressure detection mouth with secondary meter.
5. apparatus for measuring air quantity according to claim 1, it is characterised in that be uniformly provided with vertically on the static tube more
A second pressure port, the airflow direction of second pressure port back to the tested pipeline are set.
6. apparatus for measuring air quantity according to claim 5, it is characterised in that the axial direction of second pressure port and the gas
It is parallel to flow direction.
7. apparatus for measuring air quantity according to claim 1, it is characterised in that one end closing of the static tube, the other end
The second delivery outlet being connected for the low pressure detection mouth with secondary meter.
8. apparatus for measuring air quantity according to claim 1, it is characterised in that the ram-air pipe is parallel with the static tube to be set
It is placed in the tested pipeline and is respectively perpendicular to airflow direction.
9. apparatus for measuring air quantity according to claim 1, it is characterised in that the ram-air pipe and the static tube are angled
It is arranged in the tested pipeline and is respectively perpendicular to airflow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668645.1U CN207248254U (en) | 2017-06-09 | 2017-06-09 | A kind of apparatus for measuring air quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720668645.1U CN207248254U (en) | 2017-06-09 | 2017-06-09 | A kind of apparatus for measuring air quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207248254U true CN207248254U (en) | 2018-04-17 |
Family
ID=61876715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720668645.1U Active CN207248254U (en) | 2017-06-09 | 2017-06-09 | A kind of apparatus for measuring air quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207248254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606764A (en) * | 2021-08-12 | 2021-11-05 | 苏州惠林节能材料有限公司 | Air volume control system and working method thereof |
-
2017
- 2017-06-09 CN CN201720668645.1U patent/CN207248254U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606764A (en) * | 2021-08-12 | 2021-11-05 | 苏州惠林节能材料有限公司 | Air volume control system and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103335773B (en) | Pipeline gas pressure measuring device | |
| CN104729637B (en) | A kind of turbine flowmeter on-line calibration system and calibration method | |
| WO2019000259A1 (en) | Detection device and method for circulating type gas turbine flowmeter | |
| CN205300835U (en) | Flow flow resistance coefficient detection device of valve | |
| US20170322059A1 (en) | Low pressure drop and high temperature flow measuring device | |
| CN207816417U (en) | A kind of gas turbine meter detection device | |
| CN209342180U (en) | A kind of Pi Tuoba flowmeter | |
| CN207248254U (en) | A kind of apparatus for measuring air quantity | |
| CN207456534U (en) | For the integrated form connector and differential pressure flowmeter of differential pressure flowmeter | |
| CN208333627U (en) | A kind of fluid flowmeter on-line checking self-calibrating device | |
| CN204027607U (en) | Vortex precession flowmeter | |
| CN206469920U (en) | A kind of distinguished and admirable measuring device | |
| CN205762711U (en) | A kind of purging control system being matched in plug-in type ultrasonic vortex flowmeter | |
| CN204831399U (en) | Stifled amount of wind, flue gas flux measuring apparatu are prevented to array | |
| CN209342165U (en) | Double flute ring wedge differential pressure device | |
| CN209027599U (en) | A kind of redundant flow measuring device | |
| CN209014064U (en) | A kind of flue gas measurement Special wear-resistant block-resistant type pitot tube flowmeter | |
| CN207180777U (en) | A kind of grid type static pressure difference wind and smoke flow measurement device applied to blower fan and include its blower fan | |
| CN209027600U (en) | A kind of coke oven, blast furnace gas measure Special Automatic block-resistant type pitot tube flowmeter | |
| CN208383204U (en) | The wing anti-blocking multiple spot air speed pipe elbow meter of one kind and negative pressure measuring device | |
| CN109141546A (en) | Tandem aerofoil profile differential pressure block cross-sectional flow meter, differential pressure measuring installation and measurement method | |
| CN207610734U (en) | Flow measurement device with choke preventing function and system | |
| CN110045143A (en) | Primary air velocity abrasion resistant type measuring device | |
| CN202066533U (en) | Online fan flow detection device of uniform celerity tube | |
| CN219736457U (en) | Inserted pipeline center measuring flow Li Tuoba sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |