CN205664883U - Matrix flue gas flux measuring device - Google Patents
Matrix flue gas flux measuring device Download PDFInfo
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- CN205664883U CN205664883U CN201620492100.5U CN201620492100U CN205664883U CN 205664883 U CN205664883 U CN 205664883U CN 201620492100 U CN201620492100 U CN 201620492100U CN 205664883 U CN205664883 U CN 205664883U
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Abstract
The utility model discloses a matrix flue gas flux measuring device, it presses pipeline, flow sensor including getting, get and press the pipeline to be connected with flow sensor through fasteners, flow sensor divide into dynamic pressure flow sensor, static pressure flow sensor, symmetry around dynamic pressure flow sensor, static pressure flow sensor's the main part, all be provided with a plurality of branches on dynamic pressure flow sensor, the static pressure flow sensor, a plurality of branches all are the matrix and arrange, branch's end of dynamic pressure flow sensor, static pressure flow sensor be provided with respectively the dynamic pressure get press mouthful, the static pressure gets and presses mouthful. The utility model discloses be equipped with from ash removal device, prevent that stifled performance is strong, pressure measure point adopts the design of unique matrix, and line that will be original is measured the expansion and is measured for the face to make measurement accuracy increase substantially, furthermore, the utility model discloses do not receive the limit of the interior straight tube segment length of flue, alignment with pipeline section length requires lowerly, has fine universality.
Description
Technical field
This utility model relates to a kind of measurement apparatus, particularly relates to a kind of matrix form flue gas flow measurement apparatus.
Background technology
At present smoke pollution source detection requirement is the strictest, it is desired to flue gas flow monitoring gradually by the monitoring of outlet single-point to
The monitoring development of pipeline multiple spot, and the shorter gas flow rate change block that causes of the straight length of domestic original exhaustor so that measure
Difficulty strengthens especially.If changing whole discharge duct, there is the problem that engineering is the greatest, at present for be unpractical.
Therefore, measure short and straight pipe section exhaust gas flow become we must faced by a difficult problem.Traditional pitot tube or Pasteur's wind measuring device, right
The highest in the requirement of flow development length and measuring point bit selecting, they are suitable only in measurement, and environment is clean, dustiness is low, straight length
Use under the state that longer, measured area is less, dust-laden, sour, area is big, pipeline is short desulphurization denitration entrance and exit this
When using in kind bad working environments environment, then precision is poor.Additionally, both wind measuring devices lacking of there is also that easily blocking is not easily cleaned
Point.
Utility model content
In order to solve the weak point existing for above-mentioned technology, this utility model provides a kind of matrix form flue gas flow and surveys
Amount device.
In order to solve above technical problem, the technical solution adopted in the utility model is: a kind of matrix form flue gas flow is surveyed
Amount device, it includes pressure pipeline, flow transducer, fixing bar, temperature element；The lower end of pressure pipeline is disposed with fastening
Connector, flow transducer；Pressure pipeline is connected with flow transducer by fastening connection piece；Fixing bar is multiple, multiple
Fixing bar is all horizontally set on the lower end of flow transducer；The two ends of fixing bar are all connected with the both sides of flue；
Pressure pipeline is divided into dynamic pressure pressure pipeline, static pressure pressure pipeline；Flow transducer is divided into dynamic pressure flow transducer, quiet
Baric flow quantity sensor；Dynamic pressure pressure pipeline, static pressure pressure pipeline are connected with dynamic pressure flow transducer, static flow sensor respectively
Connect；
Dynamic pressure flow transducer, static flow sensor main part before and after symmetrical；Dynamic pressure flow transducer, static pressure stream
Being provided with multiple branch on quantity sensor, multiple branches are all in matrix arrangement；Dynamic pressure flow transducer, static flow sense
The branches end of device is respectively arranged with dynamic pressure pressure tappings, static pressure tapping；
It is mounted in dynamic pressure pressure tappings from deashing rod；Region in static pressure tapping is followed successively by compression rectification from front to back
District, average rate district, diffusion region.
Temperature element is arranged on flow transducer.Fastening connection piece is made up of upper flange, sealing ring, lower flange；Described
Upper flange, sealing ring, lower flange set gradually from the top down.Compression commutating zone is front wide and rear narrow tubular；Average rate district be short directly
Tubulose；Diffusion region is beloid tapered tubular.
This utility model is equipped with from deashing device, and anti-blocking performance is strong；Real by strengthening substrate material and sprayed on material
Good anticorrosion and anti-wear performance are showed；Pressure point uses unique matrix form design, and the face that original line measurement is extended for is surveyed
Amount, so that certainty of measurement increases substantially；Additionally, this utility model is not by the limit of flow development length in flue, to straight tube
Segment length requires relatively low, has good universality.
Accompanying drawing explanation
Fig. 1 is main-vision surface structural representation of the present utility model.
Fig. 2 is the structure for amplifying schematic diagram of Fig. 1 part-structure.
Fig. 3 is the left surface diagram of Fig. 2.
Fig. 4 is the structure for amplifying schematic diagram at static pressure tapping.
In figure: 1, pressure pipeline；2, flow transducer；3, fixing bar；4, temperature element；5, fastening connection piece；6, dynamic pressure
Pressure tappings；7, static pressure tapping；8, flue；9, from deashing rod；10, compression commutating zone；11, average rate district；12, diffusion region.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figures 1-4, this utility model includes pressure pipeline 1, flow transducer 2, fixing bar 3, temperature element 4；Take
The lower end of pressure pipeline 1 is disposed with fastening connection piece 5, flow transducer 2；Pressure pipeline 1 is by fastening connection piece 5 and flow
Sensor 2 is connected；Fastening connection piece 5 is made up of upper flange, sealing ring, lower flange；Described upper flange, sealing ring, lower flange
Set gradually from the top down.Temperature element 4 is arranged on flow transducer 2.Fixing bar 3 is multiple, multiple equal levels of fixing bar
It is arranged on the lower end of flow transducer 2；All both sides with flue 8, the two ends of fixing bar 3 are connected；
Pressure pipeline 1 is divided into dynamic pressure pressure pipeline, static pressure pressure pipeline；Flow transducer 2 be divided into dynamic pressure flow transducer,
Static flow sensor；Dynamic pressure pressure pipeline, static pressure pressure pipeline respectively with dynamic pressure flow transducer, static flow sensor phase
Connect；
Dynamic pressure flow transducer, static flow sensor main part before and after symmetrical；Dynamic pressure flow transducer, static pressure stream
Being provided with multiple branch on quantity sensor, multiple branches are all in matrix arrangement；Dynamic pressure flow transducer, static flow sense
The branches end of device is respectively arranged with dynamic pressure pressure tappings 6, static pressure tapping 7；Dynamic pressure pressure tappings 6 is responsible for measuring flue gas in flue 8
The pressure produced due to flowing, static pressure tapping 7 is responsible for measuring the pressure after the flue gas rectification to low flow velocity is amplified；
It is mounted on from deashing rod 9 in dynamic pressure pressure tappings 6；Do random swing from deashing rod 9 with the flowing of flue gas, make
Cannot stop through dust herein, play the effect preventing blocking pressure tappings；
Static pressure tapping 7, according to Venturi tube principle, is followed successively by compression commutating zone 10, average rate district 11, diffusion from front to back
District 12.Compression commutating zone 10 is front wide and rear narrow tubular；Average rate district 11 is short straight tube shape；Diffusion region 12 is beloid taper
Tubulose.Compression 10 low flow velocity of commutating zone, random flue gas fluid, improve the same of flow velocity by the method reducing circulation bore
Time correct fluid and flow to, when passing fluid through average rate district 11, flow velocity reaches maximum, flows to uniformly, then through diffusion region 12, makes height
The flue gas fluid velocity of speed drops to original state.
The air intake of static pressure tapping 7 is above average rate district 11, and fluid here is the highest due to speed, so to pressure
Interruption-forming negative pressure, thus expand dynamic pressure pressure tappings measured value and the pressure reduction of static pressure tapping measured value so that it is pressure difference reaches 3 times
Above, thus improve certainty of measurement.Dynamic pressure measurement value becomes certain functional relationships with the flow velocity of the pressure reduction of static pressure measurement and flue gas
System, can draw the flowing velocity of flue gas by this functional relationship.Function show that process is as follows: flow transducer 2 pressure tappings
Distribution is according to velocity-area method, owing to the flow velocity in pipeline is not equal to constant, pipeline section can be divided into many little lists
Elemental areaAi.Assume that the flow velocity in each cellar area isVi, then total flow is equal to the stream flowing through multiple all junior unit areas
Amount sum。
This utility model is compared with conventional art and is had the advantage that
(1) using 316L rustless steel as base material, apparatus surface uses high-performance special material to carry out spray treatment, has
Good anticorrosion and anti-wear performance；
(2) add pressure point by multimetering, overcome that pipeline is excessive, flow velocity is too low, flue gas flow field is unstable, stream
The changeable uneven difficult problem of speed, simultaneously through the rectified action of pressure tappings, eliminates fluctuating signal to greatest extent；
(3) utilize the swabbing action in average rate district in static pressure tapping, make negative pressure drop to the lowest limit, greatly improve pressure
Difference scope；Under identical working condition, its pressure difference can reach pitot tube or more than 3 times of bar class wind measuring device, because of
This can measure the low speed flow that other differential pressure type flow instrument cannot be measured.Stream under the conditions of heavy caliber, low static pressure, low pressure loss
In measurement, this advantage is the most prominent.
(4) being equipped with from deashing function, anti-blocking performance is strong；Necessary occasion supporting can also install timing blow device additional, with
Ensure the cleaning of measured hole；
(5) according to unique pressure point design, use velocity-area method, section is divided into some by flue cross dimensions
The little rectangular block of homalographic, makes measurement effect be measured by original line, is extended for planar survey, and certainty of measurement is high.
Above-mentioned embodiment is not to restriction of the present utility model, and this utility model is also not limited to the example above,
Change that those skilled in the art are made in the range of the technical solution of the utility model, retrofit, add or replace,
Also protection domain of the present utility model is belonged to.
Claims (4)
1. a matrix form flue gas flow measurement apparatus, it is characterised in that: it include pressure pipeline (1), flow transducer (2),
Fixing bar (3)；The lower end of described pressure pipeline (1) is disposed with fastening connection piece (5), flow transducer (2)；Pressure pipeline
(1) it is connected with flow transducer (2) by fastening connection piece (5)；Described fixing bar (3) is multiple, multiple equal water of fixing bar
The flat lower end being arranged on flow transducer (2)；All both sides with flue (8), the two ends of fixing bar (3) are connected；
Described pressure pipeline (1) is divided into dynamic pressure pressure pipeline, static pressure pressure pipeline；Described flow transducer (2) is divided into dynamic pressure stream
Quantity sensor, static flow sensor；Described dynamic pressure pressure pipeline, static pressure pressure pipeline respectively with dynamic pressure flow transducer, quiet
Baric flow quantity sensor is connected；
Described dynamic pressure flow transducer, static flow sensor main part before and after symmetrical；Dynamic pressure flow transducer, static pressure stream
Being provided with multiple branch on quantity sensor, multiple branches are all in matrix arrangement；Dynamic pressure flow transducer, static flow sense
The branches end of device is respectively arranged with dynamic pressure pressure tappings (6), static pressure tapping (7)；
It is mounted in described dynamic pressure pressure tappings (6) from deashing rod (9)；Region in described static pressure tapping (7) is from front to back
It is followed successively by compression commutating zone (10), average rate district (11), diffusion region (12).
Matrix form flue gas flow measurement apparatus the most according to claim 1, it is characterised in that: it also includes temperature element
(4)；Described temperature element (4) is arranged on flow transducer (2).
Matrix form flue gas flow measurement apparatus the most according to claim 1, it is characterised in that: described fastening connection piece (5)
It is made up of upper flange, sealing ring, lower flange；Described upper flange, sealing ring, lower flange set gradually from the top down.
Matrix form flue gas flow measurement apparatus the most according to claim 1, it is characterised in that: described compression commutating zone (10)
For front wide and rear narrow tubular；Described average rate district (11) is short straight tube shape；Described diffusion region (12) is beloid tapered tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620492100.5U CN205664883U (en) | 2016-05-26 | 2016-05-26 | Matrix flue gas flux measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620492100.5U CN205664883U (en) | 2016-05-26 | 2016-05-26 | Matrix flue gas flux measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205664883U true CN205664883U (en) | 2016-10-26 |
Family
ID=57160157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620492100.5U Active CN205664883U (en) | 2016-05-26 | 2016-05-26 | Matrix flue gas flux measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205664883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179105A (en) * | 2017-06-05 | 2017-09-19 | 神华集团有限责任公司 | Flow measurement device |
-
2016
- 2016-05-26 CN CN201620492100.5U patent/CN205664883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179105A (en) * | 2017-06-05 | 2017-09-19 | 神华集团有限责任公司 | Flow measurement device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |