CN207675246U - Multiple spot apparatus for measuring air quantity - Google Patents
Multiple spot apparatus for measuring air quantity Download PDFInfo
- Publication number
- CN207675246U CN207675246U CN201721853758.5U CN201721853758U CN207675246U CN 207675246 U CN207675246 U CN 207675246U CN 201721853758 U CN201721853758 U CN 201721853758U CN 207675246 U CN207675246 U CN 207675246U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure pipe
- pipe
- grading ring
- air quantity
- 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 - Fee Related
Links
- 238000005259 measurement Methods 0.000 abstract description 7
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 238000011105 stabilization Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 2
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model is related to air quantities, especially a kind of multiple spot apparatus for measuring air quantity, the device includes the connecting tube that pressure guiding pipe, pressure pipe are connected with by pressure guiding pipe, pressure pipe, it is characterized in that being installed with the grading ring for reducing pressure pipe inner hole section product in above-mentioned pressure pipe, the grading ring is that centre is provided with circular hole, and circular hole both ends are horn mouth.The technical solution of the utility model is to be mounted with pressure pipe inner hole section accumulating the grading ring to become smaller in pressure pipe, the variation into and out of pressure difference between air port of pressure pipe can be effectively reduced, it ensure that the stabilization shape of actual measurement dynamic pressure value, grading ring both ends are designed as horn mouth simultaneously, can prevent dust from the problem of pressure blockage occurring.The technical solution of the utility model has many advantages, such as reasonable for structure, actual measurement dynamic pressure value stabilization, accurate.
Description
Technical field
The utility model is related to air quantity, especially a kind of multiple spot apparatus for measuring air quantity.
Background technology
Multiple spot apparatus for measuring air quantity has been widely used for the on-line measurement of boiler air quantity at present, in actual use,
Since pressure tappings section and internal cavities flow section are substantially suitable, it is low right that fluid from the high corresponding pressure tappings of flow velocity flows to flow velocity
When the pressure tappings answered, still there is larger fluid dynamic energy to be not converted to pressure energy, leads to problems such as actual measurement dynamic pressure value unstable, less than normal
Voltage equalizing is bad, and then causes measured value fluctuation big.
Invention content
The purpose of this utility model is to provide a kind of stability of measurement and the multiple spot apparatus for measuring air quantity that accuracy is good.
To achieve the above object, the technical solution of the utility model is：A kind of multiple spot apparatus for measuring air quantity, including impulse
Pipe, the connecting tube that is connected with by pressure guiding pipe, pressure pipe of pressure pipe, it is characterised in that be installed in above-mentioned pressure pipe by
The grading ring that pressure pipe inner hole section product reduces, the grading ring are that centre is provided with circular hole, and circular hole both ends are horn mouth.
In above-mentioned pressure pipe into and out of being installed with grading ring at air port.
The area of circular hole is 10-the 30% of pressure pipe inner hole section product among above-mentioned grading ring.
The technical solution of the utility model is to be mounted with pressure pipe inner hole section accumulating the grading ring to become smaller in pressure pipe,
The variation into and out of pressure difference between air port that pressure pipe can be effectively reduced, ensure that the stabilization shape of actual measurement dynamic pressure value, while will press
Ring both ends are designed as horn mouth, can prevent dust from the problem of pressure blockage occurring.The technical solution of the utility model has
Reasonable for structure, actual measurement dynamic pressure value stabilization, it is accurate the advantages that.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model pressure pipe；
Fig. 3 is the left view of the utility model Fig. 2.
Specific implementation mode
As shown in Figure 1, 2, 3, multiple spot apparatus for measuring air quantity is by pressure guiding pipe 2, pressure pipe 1 and by pressure guiding pipe, pressure pipe phase
The connecting tube 3 of connection forms, and the grading ring 4 for reducing pressure pipe inner hole section product is installed in pressure pipe, this is pressed
Ring is that centre is provided with circular hole 6, and circular hole both ends are bell-mouth structure of air, and grading ring can be mounted on the air inlet of pressure pipe, also can be
Pressure pipe into and out of being respectively mounted grading ring at air port.
According to the difference of multiple spot apparatus for measuring air quantity use environment, the area of circular hole cuts for pressure pipe orifice among grading ring
10-the 30% of area.
Claims (3)
1. a kind of multiple spot apparatus for measuring air quantity, including connecting tube that pressure guiding pipe, pressure pipe are connected with by pressure guiding pipe, pressure pipe,
It is characterized in that in above-mentioned pressure pipe（1）Inside it is installed with the grading ring for reducing pressure pipe inner hole section product（4）, this is pressed
Ring is that centre is provided with circular hole（6）, circular hole both ends are horn mouth.
2. multiple spot apparatus for measuring air quantity according to claim 1, it is characterised in that in above-mentioned pressure pipe（1）It is interior into and out of
Grading ring is installed at air port（4）.
3. multiple spot apparatus for measuring air quantity according to claim 2, it is characterised in that in above-mentioned grading ring（4）Intermediate circular hole
（6）Area be pressure pipe（1）10-the 30% of inner hole section product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853758.5U CN207675246U (en) | 2017-12-27 | 2017-12-27 | Multiple spot apparatus for measuring air quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721853758.5U CN207675246U (en) | 2017-12-27 | 2017-12-27 | Multiple spot apparatus for measuring air quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207675246U true CN207675246U (en) | 2018-07-31 |
Family
ID=62971111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721853758.5U Expired - Fee Related CN207675246U (en) | 2017-12-27 | 2017-12-27 | Multiple spot apparatus for measuring air quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207675246U (en) |
-
2017
- 2017-12-27 CN CN201721853758.5U patent/CN207675246U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180731 |