CN2854523Y - Gas flow sensor - Google Patents
Gas flow sensor Download PDFInfo
- Publication number
- CN2854523Y CN2854523Y CN 200520146624 CN200520146624U CN2854523Y CN 2854523 Y CN2854523 Y CN 2854523Y CN 200520146624 CN200520146624 CN 200520146624 CN 200520146624 U CN200520146624 U CN 200520146624U CN 2854523 Y CN2854523 Y CN 2854523Y
- Authority
- CN
- China
- Prior art keywords
- float
- gas flow
- flow sensor
- valve body
- stifled
- 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
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- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a gas flux sensor, comprising a valve body. An inversed tapered tube cavity is arranged inside the inner cavity of the valve body and its upper and lower ends are respectively provided with an upper and a lower valve block which are respectively provided with an air outlet and an air inlet. A float is arranged inside the tapered tube cavity. And the outer margin of the float' s underside is tallied with the profile of the bottom of the tapered tube cavity. Embed a magnetic sheet at the underside of the float and furnish a cross ventilation hole at the upper port of the lower valve block. Mount a magnetic sensor over the ventilation hole. Elicit the output guide lines of the magnetic sensor through the side wall of the ventilation hole and the valve body. The utility model has the advantages that: as the gas flux status can be outputted in the voltage form, its measuring precision is highly increased, if compared with the traditional rotor flowmeter. The measuring result is stable in favor of realizing the digitalization of measurement so that it becomes an updated product with excellent performance.
Description
Technical field
The utility model relates to measurement mechanism, relates to a kind of gas flow sensor particularly.
Background technology
At present, general rotor gas meter on the market adopts mechanical hook-up, estimates the gas instantaneous delivery by simple scale label, can not reach the effect of accurate measurement, especially can not accurately measure small-flow gas.Thus, the using gases user caused difficulty with gas metering and charge.Up to the present, also there are not the good substitute products of performance to occur.
The utility model content
The purpose of this utility model is to overcome above-mentioned defective, and a kind of measuring accuracy height is provided, and measurement result is stable, helps realizing the digitized gas flow sensor of metering.
The utility model gas flow sensor, comprise valve body, the inner chamber of valve body is an inverted taper tube chamber, it is stifled that its upper and lower end is respectively equipped with the upper and lower valve that is fixed together with it, stifled gas outlet and the air intake opening of being respectively equipped with of upper and lower valve, one float is set in the taper tube chamber, the side of the outer rim of float bottom surface and taper tube chamber bottom coincide, in the float bottom surface, be embedded with magnetic sheet, the stifled upper port of following valve is provided with " ten " font air hole, magnetic inductor is equipped with in the air hole top, and the output lead of magnetic inductor is drawn through the sidewall of air hole and valve body.
The utility model gas flow sensor, wherein said float are the column of upper surface greater than the lower surface, and its upper surface is provided with groove.
The utility model gas flow sensor, wherein said magnetic inductor are the Hall magnetic inductor.
The utility model gas flow sensor, wherein said float adopt plastics to make, and magnetic sheet is bonded together with it.
The utility model gas flow sensor, the stifled employing of wherein said valve body and upper and lower valve thereof has plastics to make.
The utility model gas flow sensor beneficial technical effects is: owing to can the gas flow state be exported with voltage system, its measuring accuracy will significantly improve than traditional spinner-type flowmeter, measurement result is stable, help realizing the metering digitizing, become a kind of well behaved regeneration product.
Describe the technical scheme of the utility model gas flow sensor in detail below in conjunction with embodiment.
Description of drawings
Fig. 1 is the front view of the utility model gas flow sensor;
Fig. 2 is the A-A cut-open view of Fig. 1.
Embodiment
With reference to Fig. 1, a kind of gas flow sensor of the utility model comprises the valve body 1 that adopts plastics to make, and the inner chamber of valve body 1 is an inverted taper tube chamber, its upper and lower end is respectively equipped with the upper and lower valve that is fixed together with it and blocks up 2,3, and upper and lower valve stifled 2,3 is respectively equipped with gas outlet and air intake opening.Activity is provided with a float 4 in the taper tube chamber, and float 4 is the column of upper surface greater than the lower surface, and its upper surface is provided with groove 8.The side of the outer rim of float 4 bottom surfaces and taper tube chamber bottom coincide, and is embedded with magnetic sheet 5 in float 4 bottom surfaces.Float 4 adopts plastics to make, and magnetic sheet 5 is bonded together with it.With reference to Fig. 2, the upper port of following valve stifled 3 is provided with " ten " font air hole 7, and magnetic inductor 6 is equipped with in air hole 7 tops, and magnetic inductor 6 is the Hall magnetic inductor, and its output signal is drawn through the sidewall of air hole 7 and valve body 1 by output lead 9.
Below, the principle of work of the utility model gas flow sensor is described further.
In the embodiment of the utility model gas flow sensor, when not having gas flow in the taper tube chamber, magnetic sheet 5, float 4 are parked in the lower end of taper tube chamber still, and tapered tube is sealed.When gas was flowed through the taper tube chamber from bottom to top, gas was dammed by float 4, thereby produces pressure on float 4, and this pressure forces float 4 to rise, and causes the gas communication sectional area to increase, and makes tapered tube intracavity gas pressure reduce again, and float 4 falls after rise.When gaseous tension equaled the weight of float 4, float 4 was in equilibrium state, and the float position when static relatively produces a perpendicular displacement that makes progress.At this moment, 6 upper-lower positions variations with float 4 of Hall magnetic inductor convert voltage signal to by connecting lead 9 outputs.
Square theory that is inversely proportional to according to field intensity in the physics and distance can draw following flow rate calculation formula:
Wherein, Y: present flow rate; X: measuring voltage; A: minimum measuring voltage; B: maximum measuring voltage; C: greatest measurement just can obtain current gas flow through calculating.Since can be with voltage system with the output of gas flow state, its measuring accuracy will significantly improve than traditional spinner-type flowmeter, and measurement result is stable, helps realizing the metering digitizing, becomes a kind of well behaved regeneration product.
Claims (5)
1. gas flow sensor, comprise valve body (1), it is characterized in that: the inner chamber of described valve body (1) is an inverted taper tube chamber, its upper and lower end is respectively equipped with the upper and lower valve stifled (2,3) that is fixed together with it, and described upper and lower valve stifled (2,3) is respectively equipped with gas outlet and air intake opening; One float (4) is set in the described taper tube chamber, and the side of the outer rim of described float (4) bottom surface and described taper tube chamber bottom coincide, and is embedded with magnetic sheet (5) in described float (4) bottom surface; The upper port of described valve down stifled (3) is provided with " ten " font air hole (7), and magnetic inductor (6) is equipped with in described air hole (7) top, and the output lead (9) of described magnetic inductor (6) is drawn through the sidewall of described air hole (7) and described valve body (1).
2. gas flow sensor according to claim 1 is characterized in that: wherein said float (4) is the column of upper surface greater than the lower surface, and its upper surface is provided with groove (8).
3. gas flow sensor according to claim 1 and 2 is characterized in that: wherein said magnetic inductor (6) is the Hall magnetic inductor.
4. gas flow sensor according to claim 3 is characterized in that: wherein said float (4) adopts plastics to make, and described magnetic sheet (5) is bonded together with it.
5. gas flow sensor according to claim 4 is characterized in that: wherein said valve body (1) and upper and lower valve thereof stifled (2,3) adopt plastics to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520146624 CN2854523Y (en) | 2005-12-23 | 2005-12-23 | Gas flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520146624 CN2854523Y (en) | 2005-12-23 | 2005-12-23 | Gas flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854523Y true CN2854523Y (en) | 2007-01-03 |
Family
ID=37581159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520146624 Expired - Fee Related CN2854523Y (en) | 2005-12-23 | 2005-12-23 | Gas flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854523Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614023A (en) * | 2015-01-13 | 2015-05-13 | 司敏 | Intelligent floater gas meter |
| CN107727177A (en) * | 2017-09-20 | 2018-02-23 | 上海化工研究院有限公司 | A kind of gas flow optimized multifunctional element |
| CN107907171A (en) * | 2017-12-22 | 2018-04-13 | 中山市晶威电子科技有限公司 | A kind of flow sensor |
| CN108645462A (en) * | 2018-07-20 | 2018-10-12 | 合肥精都机电仪表有限公司 | A kind of spinner flowmeter with electromagnetism separate type |
| CN108931271A (en) * | 2017-05-24 | 2018-12-04 | 恩德莱斯和豪瑟尔分析仪表两合公司 | Variable area flowmeter |
-
2005
- 2005-12-23 CN CN 200520146624 patent/CN2854523Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614023A (en) * | 2015-01-13 | 2015-05-13 | 司敏 | Intelligent floater gas meter |
| CN104614023B (en) * | 2015-01-13 | 2017-12-01 | 司敏 | A kind of intelligent float gas meter, flow meter |
| CN108931271A (en) * | 2017-05-24 | 2018-12-04 | 恩德莱斯和豪瑟尔分析仪表两合公司 | Variable area flowmeter |
| CN107727177A (en) * | 2017-09-20 | 2018-02-23 | 上海化工研究院有限公司 | A kind of gas flow optimized multifunctional element |
| CN107907171A (en) * | 2017-12-22 | 2018-04-13 | 中山市晶威电子科技有限公司 | A kind of flow sensor |
| CN107907171B (en) * | 2017-12-22 | 2024-04-16 | 中山市晶威电子科技有限公司 | Flow sensor |
| CN108645462A (en) * | 2018-07-20 | 2018-10-12 | 合肥精都机电仪表有限公司 | A kind of spinner flowmeter with electromagnetism separate type |
| CN108645462B (en) * | 2018-07-20 | 2022-07-15 | 合肥精都机电仪表有限公司 | Rotor flowmeter with electromagnetic separation formula |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070103 Termination date: 20121223 |