CN2267459Y - Device for measuring wind pressure - Google Patents
Device for measuring wind pressure Download PDFInfo
- Publication number
- CN2267459Y CN2267459Y CN 96232033 CN96232033U CN2267459Y CN 2267459 Y CN2267459 Y CN 2267459Y CN 96232033 CN96232033 CN 96232033 CN 96232033 U CN96232033 U CN 96232033U CN 2267459 Y CN2267459 Y CN 2267459Y
- Authority
- CN
- China
- Prior art keywords
- signal
- pressure
- wind pressure
- micro voltage
- unit
- 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
Abstract
The utility model discloses a device for measuring wind pressure, which is composed of a signal sampling unit, a signal conversion unit, and a signal display / control unit. After a pressure signal which is collected by the signal sampling unit is converted through a micro differential pressure sensor, the pressure signal can output the signal conversion unit of a micro voltage signal which is directly proportional with the pressure, and after conversion and amplifying are conducted, a current signal is output to the display / control unit, and accordingly, the display and the monitor of the wind pressure can be realized. The utility model has the advantages of easy installation, less investment, and high precision. The device for measuring wind pressure can be widely used for measuring the wind pressure of a wind channel of a boiler and a flue and the pressure of other gases.
Description
The utility model relates to a kind of wind pressure measurement device, is a kind of blast of boiler air channel and flue and wind pressure measurement device of other gaseous tension measured specifically.
As everyone knows, boiler need be in the normally operation of state of even air distribution.Otherwise, will cause ignition lag, unstable combustion, Load Distribution inequality in flame kernel skew, the stove, thus cause thermal efficiency decline, local slagging scorification, even burn out the generation of situations such as spout.And to make boiler be in operation under the even air distribution constantly, just must measure and monitor its blast.At present, be used to measure the blast of boiler air channel, flue and the measurement mechanism of other gaseous tension, generally the form of Cai Yonging is equipped with indicating gauge with pipeline and realizes.This device needs a large amount of pipelines on the one hand, installs cumbersome, expensive many.Time one is long, also easily causes the obstruction of pipeline.In addition, because indicating gauge mostly adopts the bellows table, low, the low precision of sensitivity, the staff can't effectively adjust the combustion position of boiler, causes boiler still to be in the state operation of air distribution inequality.
The wind pressure measurement device that provides a kind of easy installation, small investment, precision height, staff easily the combustion position of boiler effectively to be adjusted is provided the purpose of this utility model.
Above-mentioned purpose of the present utility model realizes by following technical solution: wind pressure measurement device of the present utility model is made of signal sampling unit, signal conversion unit and demonstration/control module.Wherein, the signal sampling unit is that a little differential pressure sensor, signal conversion unit mainly are made up of commercially available micro voltage amplifier and triode BG1.Pressure signal by the collection of signal sampling unit, converted to one and the proportional micro voltage signal of pressure signal by its little differential pressure sensor, this micro voltage signal is added to the commercially available micro voltage amplifier input terminal of signal conversion unit, converted to a voltage signal by commercially available micro voltage amplifier and give triode, output one current signal after triode amplifies.This current signal is sent to demonstration/control module, and the tensimeter/computer data acquisition system by demonstration/control module shows/control blast at last.
Because the utility model without pipeline, is easily installed, small investment; Again owing to show/control with tensimeter/computer data acquisition system, the measuring accuracy height, the staff is easy to the combustion position of boiler is effectively adjusted.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Accompanying drawing is a wind pressure measurement device synoptic diagram of the present utility model.
With reference to accompanying drawing, wind pressure measurement device of the present utility model is made of signal sampling unit, signal conversion unit and demonstration/control module.Wherein, the signal sampling unit is a little differential pressure sensor B (model: NPX2010).And signal conversion unit comprises that (model: XTR101), string has resistance R to a commercially available micro voltage amplifier IC between 1,2 pin of this little differential pressure amplifier
1, potentiometer W
1And resistance R
2, 7 pin are to potentiometer W
1The center adjustment end between string resistance R arranged
3, so that regulate between 1,7 pin and the current potential between 2,7 pin.3, between 4 pin there be by resistance R string
5With resistance R
6With potentiometer W
2The resistor that is formed in parallel, 11,12 pin join with base stage and the collector of triode BG1 respectively, are serially connected with resistance R between the emitter of its 10 pin and triode
8The R end of the little differential pressure sensor B of signal sampling unit joins with 8,9 pin of commercially available micro voltage amplifier IC, and W end process is by resistance R
4And capacitor C
1The RC circuit that constitutes links to each other with 14 pin of commercially available micro voltage amplifier IC, is connected to capacitor C between 14 pin and 10 pin
2, also be connected to protection diode D between the positive pole of 10 pin and power supply successively
1And resistance R
7The O of little differential pressure sensor B, G end then is connected with input end 5,6 pin of commercially available micro voltage amplifier IC respectively.Demonstration/control module is serially connected with between the negative pole of commercially available micro voltage amplifier 14 pin and power supply.When wind pressure measurement device of the present utility model is worked, the pressure signal of gathering by the little differential pressure sensor B of signal sampling unit from boiler tubing, be converted into the micro voltage signal that is directly proportional with pressure signal, this micro voltage signal is sent to the input end 5 of the commercially available micro voltage amplifier IC of signal conversion unit, 6 pin, convert the base stage of exporting to triode BG1 behind the voltage signal by its output terminal 11 pin to by commercially available micro voltage amplifier again, amplify the back through BG1 and export a current signal, this current signal tensimeter/computer data acquisition system A of being sent to demonstration/control module shows/controls at last.Wherein, used tensimeter is the light beam table.
Claims (1)
1. wind pressure measurement device, it is characterized in that constituting by signal sampling unit, signal conversion unit and demonstration/control module, wherein the signal sampling unit is a little differential pressure sensor (B), and signal conversion unit mainly is made up of commercially available micro voltage amplifier (IC) and triode (BG1); Pressure signal by the signal sampling unit is gathered is converted to one and the proportional micro voltage signal of pressure signal by little differential pressure sensor (B); This micro voltage signal is added to the input end of the commercially available micro voltage amplifier (IC) of converting unit, by its conversion and export a voltage signal and give triode (BG1), output one current signal after triode (BG1) amplifies, this current signal is sent to demonstration/control module, shows/control blast by the tensimeter/computer data acquisition system (A) of demonstration/control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232033 CN2267459Y (en) | 1996-06-06 | 1996-06-06 | Device for measuring wind pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96232033 CN2267459Y (en) | 1996-06-06 | 1996-06-06 | Device for measuring wind pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2267459Y true CN2267459Y (en) | 1997-11-12 |
Family
ID=33909066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96232033 Expired - Fee Related CN2267459Y (en) | 1996-06-06 | 1996-06-06 | Device for measuring wind pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2267459Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470034B (en) * | 2007-12-25 | 2011-01-26 | 昆山双桥传感器测控技术有限公司 | Wind load pressure transducer |
| CN102279076A (en) * | 2011-05-03 | 2011-12-14 | 东南大学 | Wind pressure measuring method and device |
| CN105043644A (en) * | 2015-07-10 | 2015-11-11 | 四川奇胜科技有限公司 | Pressure transmitter capable of ensuring stability of output signals |
-
1996
- 1996-06-06 CN CN 96232033 patent/CN2267459Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470034B (en) * | 2007-12-25 | 2011-01-26 | 昆山双桥传感器测控技术有限公司 | Wind load pressure transducer |
| CN102279076A (en) * | 2011-05-03 | 2011-12-14 | 东南大学 | Wind pressure measuring method and device |
| CN102279076B (en) * | 2011-05-03 | 2012-12-19 | 东南大学 | Wind pressure measuring method and device |
| CN105043644A (en) * | 2015-07-10 | 2015-11-11 | 四川奇胜科技有限公司 | Pressure transmitter capable of ensuring stability of output signals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |