CN206161069U - High temperature corrodes flow measurement system of flue gas by force - Google Patents
High temperature corrodes flow measurement system of flue gas by force Download PDFInfo
- Publication number
- CN206161069U CN206161069U CN201621234375.5U CN201621234375U CN206161069U CN 206161069 U CN206161069 U CN 206161069U CN 201621234375 U CN201621234375 U CN 201621234375U CN 206161069 U CN206161069 U CN 206161069U
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- flue gas
- venturi
- pressure
- temperature
- transmitter
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Abstract
The utility model provides a high temperature corrodes flow measurement system of flue gas by force, includes venturi meter, venturi meter includes venturi, connecting pipe and differential pressure transmitter, the connecting pipe both sides are connected one respectively and are got the pressure pipe, and every is got and presses the pipe to be connected with a fin -tube type radiator through the sample valve separately, and two fin -tube type radiators are connected with venturi's entrance and throat respectively, and every is got pressure guan shangjun and is provided with electric heater unit and temperature controller, venturi's entrance set thermometer and temperature transmitter and pressure transmitter, and temperature transmitter, pressure transmitter and fin -tube type 1 all are connected with fin -tube type 2. This system adopts radiator cooling or ribbon heater to keep warm, and the flue gas in the assurance pressure -measuring pipe reaches the preference temperature, prevents that the flue gas from producing the dew point corrosion, prevents to produce condensation water droplet high temperature gasification circulation, avoids the pressure oscillation scheduling problem of production, has guaranteed that the measurement process is reliably stable, and it is accurate to measure.
Description
Technical field
The utility model is related to a kind of system for measuring to the flow of high temperature strong corrosion flue gas, belongs to high temperature strong
Corrosion flue gas flow field of measuring technique.
Background technology
Burning is that hazardous waste processes conventional method.The thermal technology state for burning stove is the deciding factor of the process,
However, because the environmentally friendly aftertreatment technology of danger waste burning flue gas is tediously long, the flue gas flow change of whole process is violent, rises and determines to make
The measurement of burning high temperature section flue gas flow just becomes the basis of whole engineering optimization and control strategy.
But at present, for the flow measurement of high temperature strong corrosion flue gas has problems, flue gas is prevented in measurement process
Produce dew point corrosion, prevent the circulation of condensing drip high-temperature gasification and become the problems such as avoiding the pressure oscillation for producing to need badly
Solve problem, these problems cause measurement process unstable, and poor reliability, measurement data is inaccurate.
Utility model content
The deficiency that the utility model exists for the flow measurement technology of existing high temperature strong corrosion flue gas, proposes a kind of reliable
Flow Measuring System that is stable, measuring accurate high temperature strong corrosion flue gas.
The Flow Measuring System of high temperature strong corrosion flue gas of the present utility model, employs the following technical solutions：
The system, including Venturi meter, the Venturi meter includes Venturi tube, connecting pipe and differential pressure transporting
Device, at the entrance and venturi of Venturi tube connecting pipe is connected with, and between the connecting pipe of both sides differential pressure transmitter is connected；Connecting pipe two
Side connects respectively a pressure pipe, and each pressure pipe is connected each via sampling valve with a tube-fin type radiator, two pipe wings
Formula radiator is connected respectively with the entrance and venturi of Venturi tube, and electric heater unit and temperature are provided with each pressure pipe
Controller, the entrance of Venturi tube arranges thermometer and temperature transmitter, and pressure is connected with the pressure pipe of entrance side
Power transmitter, temperature transmitter, pressure transmitter and differential pressure transmitter are connected with microprocessor.
Electric heater unit is using electric-heating belt or heating wire.
The electric heater unit is connected with current controller.Heating power is adjusted by changing electric current.
The measurement process of the Flow Measuring System of above-mentioned high temperature strong corrosion flue gas, be：
Said system is accessed in high-temperature flue gas pipeline.High-temperature flue gas are entered by the entrance of Venturi meter, are opened
Sampling valve, by radiator cooling high-temperature fume is made, and is adjusted in connecting pipe by way of electric heater unit heating and thermal insulation
Flue-gas temperature is controlled at 100 DEG C -180 DEG C.Temperature T and pressure P and Venturi meter pressure reduction △ P of high-temperature flue gas are measured,
Obtain flue gas actual flow Q1And it is converted into the flow value Q under the status of criterion0。
Property of the utility model based on high temperature highly corrosive flue gas, using Venturi meter the pressure of high-temperature flue gas is measured
By force, temperature, flowmeter pressure reduction, and using radiator cooling or ribbon heater insulation, it is ensured that the flue gas in pressure-measuring pipe reaches suitable temperature
Degree, prevents flue gas from producing dew point corrosion, prevents that condensing drip high-temperature gasification is circulated, it is to avoid pressure oscillation of generation etc. is asked
Topic, it is ensured that measurement process is reliable and stable, measurement is accurate.
Description of the drawings
Fig. 1 is the principle schematic diagram. of the Flow Measuring System of the utility model high temperature deep-etching flue gas.
In figure：1st, Venturi tube, 2, connecting pipe, 3, tube-fin type radiator, 4, differential pressure transmitter, 5, sampling valve, 6, electricity plus
Thermal, 7, temperature controller, 8, current controller, 9, thermometer, 10, pressure transmitter, 11, temperature transmitter, 12, Wei Chu
Reason device, 13, pressure pipe.
Specific embodiment
Property of the utility model based on high temperature highly corrosive flue gas, it is proposed that utilize Venturi meter, measures high temperature
The pressure of flue gas, temperature, flowmeter pressure reduction, and using the cooling of pipe wing and electrical heat tracing, two pressure taps are respectively adopted temperature
Controller carries out temperature control, with reference to the preference temperature for ensureing pressure tap, prevents flue gas from producing dew point corrosion, prevents condensation
Water droplet high-temperature gasification is circulated, it is to avoid the problems such as producing pressure oscillation.
The Flow Measuring System of the high temperature strong corrosion flue gas in the utility model, as shown in figure 1, including venturi flow
Meter, venturi flow is calculated as existing flow measurement, and it includes Venturi tube 1, connecting pipe 2 and differential pressure transmitter 4, venturi
Connecting pipe 2 is connected with the entrance of pipe 1 and venturi, differential pressure transmitter 4 is connected between both sides connecting pipe 2.The system of the present invention
In, the both sides of connecting pipe 2 connect respectively a pressure pipe 13, and each pressure pipe 13 dissipates each via sampling valve 5 and a fin-tube type
Hot device 3 connects, and two tube-fin type radiators are connected respectively with the entrance and venturi of Venturi tube 1, and tube-fin type radiator is adopted
Corrosion resistant material is made.Electric heater unit 6 and temperature controller 7 are provided with each pressure pipe 13.Electric heater unit 6 is adopted
With electric-heating belt or heating wire, can be connected with current controller 8, by changing electric current heating power is adjusted.
Thermometer 9 is set in the entrance of Venturi meter 1, thermometer 9 is connected with temperature transmitter 11, temperature pick-up
The output temperature signal of device 11, thermometer 9 also can use the integrative temperature transmitter with thermocouple to replace with temperature transmitter 11.
Pressure transmitter 10 is connected with the pressure pipe 13 of the entrance side of Venturi tube 1.
Temperature transmitter 11, pressure transmitter 10 and differential pressure transmitter 4 are connected with microprocessor 12.
The detailed process that said system is measured to the flow of high temperature strong corrosion flue gas, it is as described below.
1. the said system shown in Fig. 1 is accessed first in high-temperature flue gas pipeline.
2. high-temperature flue gas are entered by the entrance (high-temperature flue gas entry end) of Venturi tube 1, open sampling valve 5, by pipe
Fin radiator makes cooling high-temperature fume, and the flue gas temperature in connecting pipe 2 is adjusted by way of the heating and thermal insulation of electric heater unit 6
Degree control is at 100 DEG C -180 DEG C.Temperature control is carried out by temperature controller 7.
3. temperature T and pressure P of high-temperature flue gas are measured by thermometer 9 and pressure transmitter 10, by differential pressure transmitter 4
Venturi meter pressure reduction △ P are measured, and these signals are delivered into microprocessor 12.
4. microprocessor 12 obtains flue gas reality by high-temperature flue-gas T, pressure P and Venturi meter pressure reduction △ P
Border flow Q1,K is Venturi meter coefficient.And it is converted into the flow value Q under the status of criterion0,T0And P0Temperature and pressure respectively under the status of criterion.
Microprocessor 12 can be connected with display, to show flue gas flow.
Claims (3)
1. a kind of Flow Measuring System of high temperature strong corrosion flue gas, including Venturi meter, the Venturi meter includes
Be connected with connecting pipe at Venturi tube, connecting pipe and differential pressure transmitter, the entrance of Venturi tube and venturi, both sides connecting pipe it
Between connect differential pressure transmitter；It is characterized in that：Connecting pipe both sides connect respectively a pressure pipe, and each pressure pipe is each via sampling
Valve is connected with a tube-fin type radiator, and two tube-fin type radiators are connected respectively with the entrance and venturi of Venturi tube, often
Electric heater unit and temperature controller are provided with individual pressure pipe, the entrance of Venturi tube arranges thermometer and temperature pick-up
Device, is connected with pressure transmitter on the pressure pipe of entrance side, and temperature transmitter, pressure transmitter and differential pressure transmitter are equal
It is connected with microprocessor.
2. the Flow Measuring System of high temperature strong corrosion flue gas according to claim 1, is characterized in that：The electric heater unit
Using electric-heating belt or heating wire.
3. the Flow Measuring System of high temperature strong corrosion flue gas according to claim 1, is characterized in that：The electric heater unit
It is connected with current controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234375.5U CN206161069U (en) | 2016-11-17 | 2016-11-17 | High temperature corrodes flow measurement system of flue gas by force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621234375.5U CN206161069U (en) | 2016-11-17 | 2016-11-17 | High temperature corrodes flow measurement system of flue gas by force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206161069U true CN206161069U (en) | 2017-05-10 |
Family
ID=58660042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621234375.5U Expired - Fee Related CN206161069U (en) | 2016-11-17 | 2016-11-17 | High temperature corrodes flow measurement system of flue gas by force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206161069U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402174A (en) * | 2017-09-15 | 2017-11-28 | 北京帕克莱斯分析仪器有限公司 | A kind of ELECTROSTATIC DUST instrument sensor and ELECTROSTATIC DUST instrument |
| CN109579922A (en) * | 2019-02-01 | 2019-04-05 | 飞思仪表（深圳）有限公司 | A kind of plug-in type differential pressure flowmeter and flow-measuring method |
| CN112293789A (en) * | 2020-12-10 | 2021-02-02 | 房广军 | Wind speed balancing device for rolling and connecting unit of wind power wire feeding system |
-
2016
- 2016-11-17 CN CN201621234375.5U patent/CN206161069U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402174A (en) * | 2017-09-15 | 2017-11-28 | 北京帕克莱斯分析仪器有限公司 | A kind of ELECTROSTATIC DUST instrument sensor and ELECTROSTATIC DUST instrument |
| CN109579922A (en) * | 2019-02-01 | 2019-04-05 | 飞思仪表（深圳）有限公司 | A kind of plug-in type differential pressure flowmeter and flow-measuring method |
| CN112293789A (en) * | 2020-12-10 | 2021-02-02 | 房广军 | Wind speed balancing device for rolling and connecting unit of wind power wire feeding system |
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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: 20170510 Termination date: 20201117 |