CN106908621A - A kind of method that pipe section flow rate is measured by temperature-sensitive heater element - Google Patents
A kind of method that pipe section flow rate is measured by temperature-sensitive heater element Download PDFInfo
- Publication number
- CN106908621A CN106908621A CN201510973260.1A CN201510973260A CN106908621A CN 106908621 A CN106908621 A CN 106908621A CN 201510973260 A CN201510973260 A CN 201510973260A CN 106908621 A CN106908621 A CN 106908621A
- Authority
- CN
- China
- Prior art keywords
- temperature
- heater element
- sensitive heater
- pipeline section
- sensitive
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/10—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring thermal variables
Abstract
The invention belongs to fluid flow, flow velocity technical field of measurement and test, a kind of method that pipe section flow rate is measured by temperature-sensitive heater element, its component includes the throttling element 4 in pipeline section 3, the temperature-sensitive heater element 1 installed in the water inlet end of pipeline section 3, the temperature-sensitive heater element 2 installed in the centre position of pipeline section 3 and the bottom centre position of pipeline section 3.Methods described comprises the following steps：The heating power of temperature-sensitive heater element 1,2 is identical with area of dissipation, temperature-sensitive heater element 1 measures the temperature value of water inlet end during 3 water flowing of pipeline section, flow velocity accelerates when current are by throttling element 4, the heat of the unit area of temperature-sensitive heater element 2 loss becomes many, the temperature value that it is measured forms temperature difference with the temperature value that temperature-sensitive heater element 1 is surveyed, and thus temperature difference can calculate the flow velocity in pipeline section.The present invention proposes a kind of new method of testing, promotes the development of fluid flow testing field.
Description
Technical field
It is specifically a kind of to pass through temperature-sensitive heater element measurement pipe the invention belongs to fluid flow, flow velocity technical field of measurement and test
The method of section flow velocity.
Background technology
Current flux measuring method can substantially be summarized as following a few classes：One is using Bernoulli equation principle, by surveying
Measure fluid differential pressure signal to reflect the differential pressure type flow measurement method of flow, its operation principle flows through the resistance in pipeline section passage for fluid
The pressure difference that power part is produced tries to achieve the flow of fluid；Two be by direct measurement rate of flow of fluid come outflow speed mode stream
Measurement method, its principle is to measure flow by measuring pipeline section sectional area upper fluid mean flow rate；Three is using standard little Rong
Product carrys out the continuous positive displacement measurement for measuring flow, directly the dosed fluid that instrument is discharged is counted and determines flow；Four is to measure
Mass flow measurement method for the purpose of liquid mass flow（There are two kinds of direct-type and indirect type）, direct-type direct detection and quality
The proportional amount of flow calculates mass flow, and indirect type then detects volume flow and fluid density to calculate quality stream simultaneously
Amount.
The content of the invention
It is an object of the invention to provide a kind of pipe section flow rate measuring method for being different from prior art principle, i.e. one kind passes through
The method that temperature-sensitive heater element measures pipe section flow rate, proposes a kind of new method of testing, promotes the hair of fluid flow testing field
Exhibition.
The technical scheme is that：
A kind of method that pipe section flow rate is measured by temperature-sensitive heater element, its component is including pipeline section 3, installed in the water inlet end of pipeline section 3
Temperature-sensitive heater element 1, the temperature-sensitive heater element 2 installed in the centre position of pipeline section 3 and the bottom centre position of pipeline section 3 throttling element
4.Methods described comprises the following steps：The heating power of temperature-sensitive heater element 1,2 is identical with area of dissipation, feels during 3 water flowing of pipeline section
Warm heater element 1 measures the temperature value of water inlet end, and flow velocity accelerates when current are by throttling element 4, the unit area of temperature-sensitive heater element 2
The heat of loss becomes many, and the temperature value that it is measured forms temperature difference with the temperature value that temperature-sensitive heater element 1 is surveyed, thus temperature difference
The flow velocity in pipeline section can be calculated.
The beneficial effects of the invention are as follows：
A kind of new method of testing is proposed, the development of fluid flow testing field is promoted.
Brief description of the drawings
Fig. 1 is sectional view of the invention.
Numeral is meant that in figure：
1st, temperature-sensitive heater element, 2, temperature-sensitive heater element, 3, pipeline section, 4, throttling element.
Specific embodiment：
With reference to accompanying drawing, the invention will be further described：
A kind of method that pipe section flow rate is measured by temperature-sensitive heater element, its component is including pipeline section 3, installed in the water inlet end of pipeline section 3
Temperature-sensitive heater element 1, the temperature-sensitive heater element 2 installed in the centre position of pipeline section 3 and the bottom centre position of pipeline section 3 throttling element
4.Methods described comprises the following steps：The heating power of temperature-sensitive heater element 1,2 is identical with area of dissipation, feels during 3 water flowing of pipeline section
Warm heater element 1 measures the temperature value of water inlet end, and flow velocity accelerates when current are by throttling element 4, the unit area of temperature-sensitive heater element 2
The heat of loss becomes many, and the temperature value that it is measured forms temperature difference with the temperature value that temperature-sensitive heater element 1 is surveyed, thus temperature difference
The flow velocity in pipeline section can be calculated.
The above is this practical preferred embodiment, it is noted that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (3)
1. it is a kind of by temperature-sensitive heater element measure pipe section flow rate method, it is characterized in that：Enter including pipeline section 3, installed in pipeline section 3
The section of the temperature-sensitive heater element 1 of water end (W.E.), the temperature-sensitive heater element 2 installed in the centre position of pipeline section 3 and the bottom centre position of pipeline section 3
Stream part 4.
2. according to claim 1 it is a kind of by temperature-sensitive heater element measure pipe section flow rate method, it is characterized in that：Throttling element
4 are arranged on pipeline section inner bottom part centre position, and temperature-sensitive heater element is arranged on tube wall.
3. according to claim 1 it is a kind of by temperature-sensitive heater element measure pipe section flow rate method, it is characterized in that：The side
Method comprises the following steps：The heating power of temperature-sensitive heater element 1,2 is identical with area of dissipation, temperature-sensitive heating unit during 3 water flowing of pipeline section
Part 1 measures the temperature value of water inlet end, and flow velocity accelerates when current are by throttling element 4, the heat of the unit area of temperature-sensitive heater element 2 loss
Quantitative change is more, and the temperature value that it is measured forms temperature difference with the temperature value that temperature-sensitive heater element 1 is surveyed, and thus temperature difference can be calculated
Flow velocity in pipeline section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973260.1A CN106908621A (en) | 2015-12-23 | 2015-12-23 | A kind of method that pipe section flow rate is measured by temperature-sensitive heater element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973260.1A CN106908621A (en) | 2015-12-23 | 2015-12-23 | A kind of method that pipe section flow rate is measured by temperature-sensitive heater element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106908621A true CN106908621A (en) | 2017-06-30 |
Family
ID=59199651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510973260.1A Pending CN106908621A (en) | 2015-12-23 | 2015-12-23 | A kind of method that pipe section flow rate is measured by temperature-sensitive heater element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106908621A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474155B1 (en) * | 1999-07-08 | 2002-11-05 | Lockheed Martin Corporation | Constant-temperature-difference flow sensor |
| CN101055202A (en) * | 2006-04-12 | 2007-10-17 | 株式会社电装 | Thermal flow detecting apparatus and method for detecting flow using the same |
| CN100472183C (en) * | 2004-03-17 | 2009-03-25 | 麦克米伦公司 | High accuracy measuring and control of low fluid flow rates |
| JP2011196804A (en) * | 2010-03-19 | 2011-10-06 | Kansai Electric Power Co Inc:The | Heat-wire-type flow rate measurement apparatus and heat ray type flow rate measurement method |
| CN102224397A (en) * | 2008-09-26 | 2011-10-19 | 日立金属株式会社 | Mass flow controller using pressure validation of thermal flow sensors |
| CN103697949A (en) * | 2013-12-31 | 2014-04-02 | 长城汽车股份有限公司 | Device and method for detecting flow |
| CN104019853A (en) * | 2014-06-05 | 2014-09-03 | 唐力南 | Diffusion tube type rectangular flow meter |
| CN104792377A (en) * | 2015-04-16 | 2015-07-22 | 上海默伟电子科技有限公司 | Temperature measurement type flowmeter |
-
2015
- 2015-12-23 CN CN201510973260.1A patent/CN106908621A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6474155B1 (en) * | 1999-07-08 | 2002-11-05 | Lockheed Martin Corporation | Constant-temperature-difference flow sensor |
| CN100472183C (en) * | 2004-03-17 | 2009-03-25 | 麦克米伦公司 | High accuracy measuring and control of low fluid flow rates |
| CN101055202A (en) * | 2006-04-12 | 2007-10-17 | 株式会社电装 | Thermal flow detecting apparatus and method for detecting flow using the same |
| CN102224397A (en) * | 2008-09-26 | 2011-10-19 | 日立金属株式会社 | Mass flow controller using pressure validation of thermal flow sensors |
| JP2011196804A (en) * | 2010-03-19 | 2011-10-06 | Kansai Electric Power Co Inc:The | Heat-wire-type flow rate measurement apparatus and heat ray type flow rate measurement method |
| CN103697949A (en) * | 2013-12-31 | 2014-04-02 | 长城汽车股份有限公司 | Device and method for detecting flow |
| CN104019853A (en) * | 2014-06-05 | 2014-09-03 | 唐力南 | Diffusion tube type rectangular flow meter |
| CN104792377A (en) * | 2015-04-16 | 2015-07-22 | 上海默伟电子科技有限公司 | Temperature measurement type flowmeter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8069734B2 (en) | Multi-vortex flowmeter integrating pressure gauge | |
| RU2013150525A (en) | NUCLEAR MAGNETIC FLOWMETER AND METHOD OF OPERATION OF NUCLEAR MAGNETIC FLOWMETERS | |
| CN104165664B (en) | Pitot bar integrated mass flow meter | |
| KR101178038B1 (en) | Differential pressure-type mass flow meter with double nozzles | |
| CN104406663B (en) | A kind of liquid metal flux demarcates container | |
| CN106908621A (en) | A kind of method that pipe section flow rate is measured by temperature-sensitive heater element | |
| CN104089665A (en) | Single-pipe three-phase flowmeter | |
| WO2005054787A3 (en) | Method and device for flow measurement | |
| CN204902900U (en) | High temperature pitot crust flow sensor | |
| CN205898220U (en) | Flowmeter based on thermodynamics | |
| FR3103269B1 (en) | Fluid mass flow measurement device | |
| CN104990646A (en) | Heat energy meter pressure loss measurement device | |
| JP2007333461A (en) | Multi vortex flowmeter using volume flow as switching point | |
| CN105444959B (en) | A kind of measurement apparatus and its measuring method of Hydraulic Elements micro leakage | |
| JP3398251B2 (en) | Flowmeter | |
| JP2005291766A5 (en) | ||
| CN204330032U (en) | A kind of double diameter-changeable measuring tube of vortex shedding flow meter | |
| CN204329991U (en) | A kind of constructional device being applied to gravity flow fluid ultrasonic measurement | |
| KR20050102853A (en) | A method and device for measuring groundwater discharge rate | |
| CN201662566U (en) | Tubular differential pressure flow air resistor device | |
| CN210198494U (en) | Sensor assembly for water conservancy thermal flowmeter | |
| CN205748516U (en) | Micro-nano upgrading fluid flowmeter | |
| KR200355922Y1 (en) | A Device for measuring groundwater discharge rate | |
| CN107084926A (en) | Liquid clarity detection method, system and device | |
| CN105466505A (en) | Content analyzing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 211178 No. 5 Xiyan Road, Jiangning Binjiang Development Zone, Nanjing City, Jiangsu Province Applicant after: Maxtor instrument Limited by Share Ltd Address before: 211178 No. 5 Xiyan Road, Jiangning Binjiang Development Zone, Nanjing City, Jiangsu Province Applicant before: Jiangsu Maituo Intelligent Meter Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170630 |
|
| RJ01 | Rejection of invention patent application after publication |