CN205483098U - Matrix differential pressure flow meter - Google Patents
Matrix differential pressure flow meter Download PDFInfo
- Publication number
- CN205483098U CN205483098U CN201620230600.1U CN201620230600U CN205483098U CN 205483098 U CN205483098 U CN 205483098U CN 201620230600 U CN201620230600 U CN 201620230600U CN 205483098 U CN205483098 U CN 205483098U
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- CN
- China
- Prior art keywords
- differential pressure
- installation frame
- measurement system
- total head
- impulse
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- 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.)
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- 239000011159 matrix material Substances 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 21
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 230000009897 systematic effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000003500 flue dust Substances 0.000 description 2
- 229950000845 politef Drugs 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a matrix differential pressure flowmeter. Its purpose is the matrix differential pressure flow meter in order to provide reliable and stable, the difficult jam of flow -speed measurement, overall framework formula. The utility model discloses an installation frame, a fixing member, the rectification grid, total head measurement system, static pressure measurement system and differential pressure measurement component, the installation frame is fixed in in the flue, total head measurement system presses main line and measuring unit including drawing, draw and press in the main line is fixed in the installation frame through the mounting, it is regional that rectification grid installation frame interior division divides a plurality of rectangle into, measuring unit sets up in the rectangle region intra -area, measuring unit presses the pipe and draws the pressure branch road including drawing, draw and press the pipe through drawing pressure branch road parallel connection in drawing pressure main line both sides, static pressure measurement system parallel arrangement is in total head measurement system rear side, total head measurement system and static pressure measurement system respectively with set up the differential pressure measurement component connection outside the installation frame.
Description
Technical field
This utility model relates to a kind of polluter flow monitoring device, particularly relates to a kind of matrix form differential pressure stream
Gauge.
Background technology
The flow measurement being currently used for Online monitoring of pollution sources mainly has thermal flowmeter, single-point type pitot tube stream
The several ways such as speed meter, Multi-point flow counter, ultrasonic flowmeter and area flowmeter.Thermal flowmeter exists
During measurement, belong to spot measurement, owing to flue gas existing substantial amounts of dust and higher humidity, easily at stream
Flowmeter transducer surface attachment dust, causes flow measurement error increasing, and effusion meter needs frequent school
Accurate.Single-point type Pitotmeter measure time, pitot tube owing to being retrained by principle, general caliber all than
Less, in the case of dust and humidity ratio are relatively big, blocking easily occur, causes flow-speed measurement data to occur
Being the situation of 0, maintenance is relatively big, and pitot tube requires the longest straight tube crossing current speed section, greatly when mounted
Part industry spot does not satisfies the requirements.Ultrasonic flowmeter is by measuring ultrasonic emitting and accepting ultrasound wave
Time difference calculate flow speed value.The above metering system of measurement data has good accuracy, but
It is expensive, it is difficult to large-scale application is in enterprise.Multi-point flow counter is mainly by measuring differential pressure process
Calculate flow speed value.But the method can only gather the line flow velocity of a section, this line flow velocity can not be very
Good representative cross-sectional flow situation, and require have the longest straight tube crossing current speed section, major part work when mounted
Industry scene does not satisfies the requirements.Current existing area flowmeter such as utility model patent CN 203657849U
Deng, its simple in construction, measure point on the low side, thus measurement result is not accurate enough, stable, and mostly take method
Blue formula design, is arranged between 2-section pipe road, requires higher to flue path.
Summary of the invention
It is reliable and stable, low to straight length requirement, no that the purpose of this utility model aims to provide a kind of flow-speed measurement
Easily blocking, the matrix form differential pressure flowmeter of easy maintenance.
This utility model one matrix form differential pressure flowmeter, including installation frame, fixture, flow straightening grid,
Total head measures system, static pressure measurement system and differential pressure measurement element, and described installation frame is fixed in flue,
Described flow straightening grid is arranged at installation frame front end, and flow straightening grid will be divided into several rectangle regions in installation frame
Territory, described total head measurement system includes impulse main line and measuring unit, and described impulse main line is solid by fixture
In installation frame, described measuring unit is arranged in rectangular area, and measuring unit includes pressure guiding pipe and draws
Pressure branch road, described pressure guiding pipe is connected to both sides, impulse main line, the upper and lower two ends of pressure guiding pipe by impulse leg parallel
Being provided with towards inclination angle, air intake vent direction otch, described inclination angle otch and air-flow angle are 45 °；Described static pressure is surveyed
Amount system is set in parallel on rear side of total head measurement system, and it is identical that its structure measures system with described total head, inclination angle
Cut-out direction air intake vent dorsad；Described total head measure system and described static pressure measurement system respectively be arranged at peace
The differential pressure measurement element outside frame that frames up connects.
This utility model one matrix form differential pressure flowmeter, wherein said impulse main line, impulse branch road and impulse
Pipe is the 316L stainless steel tube with polytetrafluorethylecoatings coatings.
This utility model one matrix form differential pressure flowmeter, wherein said impulse main line, impulse branch road and impulse
Pipe is 60mm pipe.
This utility model one matrix form differential pressure flowmeter, wherein said installation frame can be fixed according to flue size
System, in installation frame, described measuring unit quantity increases and decreases in proportion.
This utility model one matrix form differential pressure flowmeter, wherein said differential pressure measurement element is differential pressure sensing
Device.
This utility model a kind of matrix form differential pressure flowmeter is from the different of prior art: this utility model square
Configuration differential pressure flowmeter matrix form in flue arranges several measuring units, and each measuring unit is measured
To differential pressure carry out mean value computation, to obtain the mean flow rate of whole section；Compared with prior art, this reality
Measuring dot density height in novel installation frame, be evenly distributed, structure is ingenious, measures whole cigarette with face generation point
The average differential pressure of road section, can be greatly improved measurement data accuracy, stability.This utility model matrix
The pipeline of formula differential pressure flowmeter uses the rustless steel of the 316L of diameter 60mm, outer coating tetrafluoroethylene coating
Pipe, thus the possibility of pipeline blockage can be reduced, even if in the case of high humidity, high dirt, also need not install
Blow device.This utility model uses integral frame-type structure, requires low to flue path, when installation is safeguarded
Entirety is loaded and unloaded, and greatly reduces and installs the difficulty safeguarded.
Accompanying drawing explanation
Fig. 1 is the overall structure figure of this utility model matrix form differential pressure flowmeter.
Fig. 2 is the front view of measuring unit in this utility model matrix form differential pressure flowmeter.
Fig. 3 is the side view of this utility model matrix form differential pressure flowmeter.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, this utility model one matrix form differential pressure flowmeter, including installing
Framework 1, fixture 2, flow straightening grid 8, total head measure system 3, static pressure measurement system 4, measuring unit
5 and little differential pressure sensor 6.Installation frame 1 is fixed in flue, and flow straightening grid 8 is arranged at installation frame
Front end, flow straightening grid will be divided into several rectangular areas in installation frame 1, total head is measured system and included impulse
Main line 7 and measuring unit 5, impulse main line 7 is fixed in installation frame 1 by fixture 2, measures single
Unit 5 is arranged in rectangular area, includes pressure guiding pipe 52 and impulse branch road 51, pressure guiding pipe in measuring unit 5
52 are connected in parallel to both sides, impulse main line 7 by impulse branch road 51, pressure guiding pipe about 53 two ends be provided with towards
Air intake vent direction and air-flow angle are the inclination angle otch 53 of 45 °, and static pressure measurement system 4 is set in parallel in entirely
On rear side of pressure measurement system 3, its structure is identical with total head system 3, otch 53 direction, inclination angle inlet air dorsad
Mouthful, total head is measured system 3 and is sensed with the differential pressure being arranged at outside installation frame respectively with static pressure measurement system 4
Device 6 is connected.
The operation principle of this utility model a kind of matrix form differential pressure flowmeter is: if flue is divided into by flow straightening grid
Dry the rectangular area that area is identical, in flow straightening grid rear pass, the air-flow of disturbance becomes smooth air,
Each rectangular area is provided with a measuring unit, in the most each rectangular area, all has 4 inclination angles to cut
Mouth impulse point, can measure total head and static pressure；So, identical by being provided with some areas in flue measurement
Unit, the total head these measuring units gathered and static pressure are input in differential pressure measurement element, and are averaged
Value calculates, and obtains average total head and the average static pressure of flue cross section, is computed just can drawing average survey
Amount differential pressure.According to average differential pressure, the flow condition of whole section can be calculated more accurately, according to speed
Degree area-method, according to the area in flue cross section, and then can obtain flue data on flows, thus the most anti-
Answer operating mode.
In an embodiment of the present utility model, impulse main line 7, impulse branch road 51 and pressure guiding pipe 52 are diameter
60mm, there is the 316L stainless steel tube of polytetrafluorethylecoatings coatings.The pipeline of diameter 60mm is relatively coarser than conventional pipe
Road, even if pipeline has flue dust to pile up is not easy to blocking.Politef has coefficient of friction and surface can be ultralow
Characteristic, its coefficient of friction is minimum in all plastics, and its surface can in all solids material also
Being minimum, these characteristics all make flue dust be difficult in its surface attachment, thus have politef figure layer
316L stainless steel tube can effectively prevent pipeline blockage, and matrix form differential pressure flowmeter need not arrange blow device.
In an embodiment of the present utility model, installation frame 1 can customize according to flue size, installation frame 1
Interior measuring unit 5 quantity increases and decreases in proportion.
This utility model one matrix form differential pressure flowmeter, is fixed with installation frame, installation frame in flue
Inside it is divided into the rectangular area that several are identical, in each region, is both provided with a measuring unit, each measurement
Being provided with four in unit and measure measurement single density height in point, installation frame, be evenly distributed, structure is ingenious,
To wear an average differential pressure measuring whole flue section, measuring accuracy is high.This utility model differential pressure type stream
The pipeline of gauge uses the stainless steel tube of the 316L of diameter 60mm, outer coating tetrafluoroethylene coating, thus can
Reduce the possibility of pipeline blockage, even if in the case of high humidity, high dirt, also need not often safeguard pipeline.This
Utility model matrix form differential pressure flowmeter, employing integral frame-type structure, installation maintenance low to flue requirement
Time bulk handling.Greatly reduce and the difficulty safeguarded is installed.This utility model flow-speed measurement is reliable and stable, no
Easily block, install convenient, compared with prior art there is obvious advantage.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-mentioned reality
It is exemplary for executing example, it is impossible to be interpreted as that, to restriction of the present utility model, those of ordinary skill in the art exists
Without departing from can be to above-mentioned reality in the range of this utility model in the case of principle of the present utility model and objective
Execute example to be changed, revise, replace and modification.Scope of the present utility model is extremely equal to by claims
Limit.
Claims (5)
1. a matrix form differential pressure flowmeter, measures system including installation frame, fixture, flow straightening grid, total head
System, static pressure measurement system and differential pressure measurement element, it is characterised in that described installation frame is fixed on flue
In, described flow straightening grid is arranged at installation frame front end, and flow straightening grid will be divided into several squares in installation frame
Shape region, described total head measurement system includes impulse main line and measuring unit, and described impulse main line is by fixing
Part is fixed in installation frame, and described measuring unit is arranged in rectangular area, and measuring unit includes pressure guiding pipe
With impulse branch road, described pressure guiding pipe is connected to both sides, impulse main line by impulse leg parallel, and pressure guiding pipe is upper and lower
Two ends are provided with towards inclination angle, air intake vent direction otch, and described inclination angle otch and air-flow angle are 45 °；Described quiet
Pressure measurement system is set in parallel on rear side of total head measurement system, and it is identical that its structure measures system with described total head,
Inclination angle cut-out direction air intake vent dorsad；Described total head measure system and described static pressure measurement system respectively with setting
Differential pressure measurement element outside installation frame connects.
2. matrix form differential pressure flowmeter as claimed in claim 1, it is characterised in that described impulse main line, draw
Pressure branch road and pressure guiding pipe are the 316L stainless steel tube with polytetrafluorethylecoatings coatings.
3. matrix form differential pressure flowmeter as claimed in claim 1 or 2, it is characterised in that described impulse is done
Road, impulse branch road and pressure guiding pipe are 60mm pipe.
4. matrix form differential pressure flowmeter as claimed in claim 1, it is characterised in that described installation frame can root
Customizing according to flue size, in installation frame, described measuring unit increases and decreases in proportion.
5. matrix form differential pressure flowmeter as claimed in claim 1, it is characterised in that described differential pressure measurement element
For little differential pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230600.1U CN205483098U (en) | 2016-03-24 | 2016-03-24 | Matrix differential pressure flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230600.1U CN205483098U (en) | 2016-03-24 | 2016-03-24 | Matrix differential pressure flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483098U true CN205483098U (en) | 2016-08-17 |
Family
ID=56652460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620230600.1U Expired - Fee Related CN205483098U (en) | 2016-03-24 | 2016-03-24 | Matrix differential pressure flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205483098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664523A (en) * | 2017-10-23 | 2018-02-06 | 中国华能集团清洁能源技术研究院有限公司 | A kind of full flue gas flow measurement apparatus of matrix form and method |
| CN108693380A (en) * | 2018-04-12 | 2018-10-23 | 大唐韩城第二发电有限责任公司 | A kind of measurement method of desulfurization fume flow rate measuring device and the device |
-
2016
- 2016-03-24 CN CN201620230600.1U patent/CN205483098U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664523A (en) * | 2017-10-23 | 2018-02-06 | 中国华能集团清洁能源技术研究院有限公司 | A kind of full flue gas flow measurement apparatus of matrix form and method |
| CN108693380A (en) * | 2018-04-12 | 2018-10-23 | 大唐韩城第二发电有限责任公司 | A kind of measurement method of desulfurization fume flow rate measuring device and the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160817 |