CN204142311U - Single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter - Google Patents
Single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter Download PDFInfo
- Publication number
- CN204142311U CN204142311U CN201420537539.6U CN201420537539U CN204142311U CN 204142311 U CN204142311 U CN 204142311U CN 201420537539 U CN201420537539 U CN 201420537539U CN 204142311 U CN204142311 U CN 204142311U
- Authority
- CN
- China
- Prior art keywords
- tube
- pressure
- dynamic pressure
- static
- deashing
- 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 - Lifetime
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 239000003546 flue gas Substances 0.000 title claims abstract description 11
- 230000003068 static effect Effects 0.000 claims abstract description 48
- 239000013049 sediment Substances 0.000 claims abstract description 24
- 239000000919 ceramic Substances 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 5
- 238000004364 calculation method Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a kind of single-point backrest from deashing wear-resisting type differential pressure wind gage flue gas flow meter, its structure comprises single-point dynamic pressure from deashing bar, single-point static pressure is from deashing bar, ceramic dynamic pressure protecting tube, pottery static pressure protecting tube, dynamic pressure tube, static tube, dynamic pressure sediment tube, static pressure sediment tube, dynamic pressure guiding pipe, quiet pressure guiding pipe, lower flange is installed, install flange, differential pressure transmitter, signal cable, calculation control unit, the beneficial effects of the utility model: effectively solve plugging, wearing and tearing, resistant to elevated temperatures technical barrier, achieve non-maintaining, crushing is little, precision is high, signal is without delayed, output signal more stable, easy for installation, maintenance is little.Power plant boiler is provided to safely and steadily run.
Description
Technical field
the utility modelrelate to be a kind of single-point backrest from deashing wear-resisting type differential pressure wind gage flue gas flow meter, belong to electric power observation and control and fluid measurement technical field equally.
Background technology
The apparatus for measuring air quantity that current state's electricity fuel-burning power plant uses has a variety of, wherein flue before and after Denitration in Boiler, coal pipe, containing the air channel of high dust because measured pipeline ash quantity is large or containing a large amount of coal dust, temperature high, wear-resisting official post used time but the problem of all depositing in the following areas: stifled grey plugging is serious, has influence on device and normally uses; The normal use of the inaccurate influential system of data.
Summary of the invention
the utility modelpropose be a kind of single-point backrest from deashing wear-resisting type differential pressure wind gage flue gas flow meter, its object is intended to the above-mentioned defect overcome existing for prior art, effectively solve plugging, wearing and tearing,
The technical barrier of high temperature resistant grade.
the utility modeltechnical solution: single-point backrest from deashing wear-resisting type differential pressure wind gage flue gas flow meter, its structure comprise single-point dynamic pressure from deashing bar, single-point static pressure from deashing bar, ceramic dynamic pressure protecting tube, ceramic static pressure protecting tube, dynamic pressure tube, static tube, dynamic pressure sediment tube, static pressure sediment tube, dynamic pressure guiding pipe, quiet pressure guiding pipe, lower flange be installed, install flange, differential pressure transmitter, signal cable, calculating controls control module; Wherein dynamic pressure tube is embedded in single-point dynamic pressure in deashing bar, static tube is embedded in single-point static pressure in deashing bar, dynamic pressure tube is nested in ceramic dynamic pressure protecting tube, pottery static tube is nested in ceramic static pressure protecting tube, welds respectively along the dynamic pressure sediments tube of upper 45 degree and static pressure sediment tube with dynamic pressure tube and static tube; Dynamic pressure tube and static tube integral solder are fixed on and are arranged on upper flange, installing lower flange is welded on pipe under test or flue, dynamic pressure guiding pipe is connected with dynamic pressure sediment tube and static pressure sediment tube cutting ferrule respectively with one end of quiet pressure guiding pipe, dynamic pressure guiding pipe is connected with the positive and negative end cutting ferrule of differential pressure transmitter respectively with the other end of quiet pressure guiding pipe, and differential pressure transmitter is crossed signal cable and connected with calculation control unit.
the utility modelbeneficial effect: effectively solve plugging, wearing and tearing, resistant to elevated temperatures technical barrier, achieve non-maintaining, crushing is little, and precision is high, and signal is without delayed, and output signal more stable, easy for installation, maintenance is little.Power plant boiler is provided to safely and steadily run.
Accompanying drawing explanation
Fig. 1 is the structural representation of single-point backrest from deashing wear-resisting type differential pressure wind gage flue gas flow meter.
In figure 1 is single-point dynamic pressure to be single-point static pressure from deashing bar, 2 to be quiet pressure guiding pipes, 11 be that to install lower flange, 12 be that to install flange, 13 are differential pressure transmitters, 14 are signal cables, 15 is calculate to control control module from deashing bar, 3 are ceramic dynamic pressure protecting tubes, 4 are ceramic static pressure protecting tubes, 5 are dynamic pressure tubes, 6 are static tubes, 7 to be dynamic pressure sediments tube, 8 be static pressure sediment tube, 9 is pressure guiding pipe, 10.
Embodiment
Contrast accompanying drawing 1, its structure comprise single-point dynamic pressure from deashing bar 1, single-point static pressure from deashing bar 2, ceramic dynamic pressure protecting tube 3, ceramic static pressure protecting tube 4, dynamic pressure tube 5, static tube 6, dynamic pressure sediment tube 7, static pressure sediment tube 8, dynamic pressure guiding pipe 9, quiet pressure guiding pipe 10, lower flange 11 be installed, install flange 12, differential pressure transmitter 13, signal cable 14, calculate and control control module 15, wherein single-point dynamic pressure is embedded in dynamic pressure tube 5 and static tube 6 from deashing bar 1 and single-point static pressure from deashing bar 2, ceramic dynamic pressure protecting tube 3 and ceramic static pressure protecting tube 4 are nested into dynamic pressure tube 5 and static tube 6 is also fixed with high-temperature plastic and screw thread, dynamic pressure sediment tube 7 and static pressure sediment tube 8 are welded on dynamic pressure tube 5 and static tube 6 also reserved pressure guiding pipe interface along upper 45 degree, dynamic pressure tube 5 and static tube 6 integral solder are fixed on to be installed on flange 12, installing lower flange 11 is welded on pipe under test or flue, lower flange 11 is installed and installs flange 12 and be threaded connection, dynamic pressure guiding pipe 9 is connected with dynamic pressure sediment tube 7 and static pressure sediment tube 8 cutting ferrule with quiet pressure guiding pipe 10 one end, dynamic pressure guiding pipe 9 is connected with the positive and negative terminal cutting ferrule of differential pressure transmitter 13 with the other end of quiet pressure guiding pipe 10, differential pressure transmitter 13 is connected with calculation control unit 15 by signal cable 14.
Described computer control unit 15 can be DCS system, also can be independently industrial control host, all belong to prior art, its effect is that the 4-20mA current signal of differential pressure transmitter is converted to differential pressure according to the pressure range of transmitter, and flexible normalized form of crossing calculates flow.
Through practical application, present invention successfully solves plugging, wearing and tearing, resistant to elevated temperatures technical barrier, wear-resistant ceramic design effectively solves short problem in serviceable life, the samely can generate boiler air quantity on calculating control system or DCS, the differential pressure of energy Real-Time Monitoring wind powder pipe, air channel, flue and flow, make important parameter in boiler combustion obtain effective Real-Time Monitoring, combustion adjustment and fault diagnosis evidence-based.For realizing boiler combustion optimization, providing effective credible means, meeting the needs of on-the-spot actual production process well.Specifically also comprise
1, anti-blocking.Adopt anti-blocking design and from deashing patented technology, containing reliability service under dust atmosphere, the addition thereto such as any blowback need not be adopted to sweep, realizes long-term non-maintaining function.
2, abrasionproof.Abrasionproof stainless steel manufactures.
3, crushing is little.Measurement mechanism reasonable in design, after installing, can not affect the result of original air velocity adjusting in wind pipeline; In wind trunk, because the crushing produced is little can reduce fan energy consumption.
4, precision is high.Cold conditions is demarcated and hot temperature pressure compensation technology effective improves measuring accuracy, and wind trunk adopts uniform cross section multiple spot matrix measuring sonde, ensures that the high-precision flow in short and straight pipe section, flow field turbulent flow situation is measured.
5, speed measuring device: measuring accuracy ± 1.5 %, crushing≤5%, working temperature≤800 °, are applicable to all size boiler.
6, differential pressure transmitter: measuring accuracy: ± 0.2%, signal exports: 4-20mA standard signal, supply voltage: 24VDC, working temperature :-18 DEG C-65 DEG C.
7, signal is without delayed: measuring-signal is pressure signal, and therefore system responses is quick, and signal exports without delayed.
8, easy for installation, maintenance is little: distinctive simplification mounting design, adopts the clogging-preventing measures of patented technology, and make installation simple, maintenance work is few.
Claims (4)
1. single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter, it is characterized in that comprising single-point dynamic pressure from deashing bar, single-point static pressure from deashing bar, ceramic dynamic pressure protecting tube, ceramic static pressure protecting tube, dynamic pressure tube, static tube, dynamic pressure sediment tube, static pressure sediment tube, dynamic pressure guiding pipe, quiet pressure guiding pipe, lower flange be installed, install flange, differential pressure transmitter, signal cable, calculating controls control module; Wherein dynamic pressure tube is embedded in single-point dynamic pressure in deashing bar, static tube is embedded in single-point static pressure in deashing bar, dynamic pressure tube is nested in ceramic dynamic pressure protecting tube, pottery static tube is nested in ceramic static pressure protecting tube, welds respectively along the dynamic pressure sediments tube of upper 45 degree and static pressure sediment tube with dynamic pressure tube and static tube; Dynamic pressure tube and static tube integral solder are fixed on and are arranged on upper flange, installing lower flange is welded on pipe under test or flue, dynamic pressure guiding pipe is connected with dynamic pressure sediment tube and static pressure sediment tube cutting ferrule respectively with one end of quiet pressure guiding pipe, dynamic pressure guiding pipe is connected with the positive and negative end cutting ferrule of differential pressure transmitter respectively with the other end of quiet pressure guiding pipe, and differential pressure transmitter is crossed signal cable and connected with calculation control unit.
2. single-point backrest according to claim 1 is from deashing wear-resisting type differential pressure wind gage flue gas flow meter, it is characterized in that described ceramic dynamic pressure protecting tube and ceramic static pressure protecting tube are nested into dynamic pressure tube and static tube is all fixed with high-temperature plastic and screw thread.
3. single-point backrest according to claim 1 is from deashing wear-resisting type differential pressure wind gage flue gas flow meter, it is characterized in that described dynamic pressure sediment tube and static pressure sediment tube are welded on dynamic pressure tube and static tube also reserved pressure guiding pipe interface along upper 45 degree.
4. single-point backrest according to claim 1 is from deashing wear-resisting type differential pressure wind gage flue gas flow meter, it is characterized in that described installation lower flange and install flange being threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537539.6U CN204142311U (en) | 2014-09-19 | 2014-09-19 | Single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537539.6U CN204142311U (en) | 2014-09-19 | 2014-09-19 | Single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204142311U true CN204142311U (en) | 2015-02-04 |
Family
ID=52418991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420537539.6U Expired - Lifetime CN204142311U (en) | 2014-09-19 | 2014-09-19 | Single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204142311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953855A (en) * | 2016-06-22 | 2016-09-21 | 武金玉 | Anti-blockage differential pressure flowmeter |
-
2014
- 2014-09-19 CN CN201420537539.6U patent/CN204142311U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953855A (en) * | 2016-06-22 | 2016-09-21 | 武金玉 | Anti-blockage differential pressure flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203981700U (en) | Dust through-current capacity pick-up unit | |
| CN103364580B (en) | The online flow velocity measuring system of multi-point grid and method | |
| CN204142295U (en) | From block-resistant type Multipoint Uniform uniform cross section differential pressure air quantity flow apparatus | |
| CN102997967A (en) | Blowing flow real time measuring device and method for pipeline with rectangular section | |
| AU2015377049B2 (en) | Coal mine air channel ventilation flow online monitoring system | |
| CN204142311U (en) | Single-point backrest is from deashing wear-resisting type differential pressure wind gage flue gas flow meter | |
| CN202383041U (en) | Differential pressure type drilling fluid density instrument | |
| CN203688304U (en) | Deposited ash sampling device capable of controlling surface temperature and monitoring heat flow in real time | |
| CN204142296U (en) | From block-resistant type Multipoint Uniform uniform cross section differential pressure flue gas flow meter | |
| CN204740262U (en) | Back flute hole wind speed differential pressure measuring device | |
| CN205879978U (en) | Venturi type wind speed differential pressure measuring device | |
| CN202974350U (en) | Air supply flow real-time detection device for rectangular section pipeline | |
| CN202928633U (en) | Measuring system for air passage flow of boiler combustion system | |
| CN203881581U (en) | Sealing device for flue sampling and measuring hole | |
| CN202329696U (en) | Online intelligent elbow meter | |
| CN205079833U (en) | Air -cooled ash bucket charge level indicator | |
| CN202991568U (en) | Main mine induced draft fan with air-volume online detection device | |
| CN203838030U (en) | Density measuring device for dense-medium coal dressing suspension liquid | |
| CN207335798U (en) | A kind of wing multipoint stream gauge of lift | |
| CN203719723U (en) | High-performance gas metering device | |
| CN203532944U (en) | Pressure regulator valve position transmitting device | |
| CN203162237U (en) | Gas pressure regulation valve | |
| CN201382825Y (en) | Novel heat regulating controller | |
| CN200956033Y (en) | Power station boiler primary-secondary air speed measuring device | |
| CN201583291U (en) | Plug-in multi point anemometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 211100 4 4, Fu Ying Road, Gao Xin Garden, Jiangning District, Nanjing, Jiangsu. Patentee after: NANJING QINGNENG AUTOMATION EQUIPMENT CO.,LTD. Address before: 211106 2, floor 3, Hao Yue science and Technology Park, 1 Fangyuan Middle Road, Jiangning District, Nanjing, Jiangsu. Patentee before: NANJING QINGNENG AUTOMATION EQUIPMENT CO.,LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |