CN202141478U - Electron temperature compensation float flowmeter - Google Patents
Electron temperature compensation float flowmeter Download PDFInfo
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- CN202141478U CN202141478U CN201120141331U CN201120141331U CN202141478U CN 202141478 U CN202141478 U CN 202141478U CN 201120141331 U CN201120141331 U CN 201120141331U CN 201120141331 U CN201120141331 U CN 201120141331U CN 202141478 U CN202141478 U CN 202141478U
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- guide rod
- microprocessor
- float
- signal
- suspended body
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Abstract
The utility model relates to an electron temperature compensation float flowmeter, which comprises a flow tube with a tapered tube cavity, a first guide rod provided to penetrate the flow tube and a flow tube provided in the tapered tube cavity of the flow tube; the float is fixedly sleeved on the first guide rod; the float flowmeter further comprises a displacement sensor, a temperature sensor and a microprocessor; the displacement sensor and the temperature sensor output displacement signals and temperature signals to the microprocessor respectively. A fluid flows through the tapered tube cavity of the flow tube and drives the float and the first guide rod to move up and down together, the displacement sensor converts the measured displacement to an electrical signal for input to the microprocessor, meanwhile, the temperature sensor senses the ambient temperature and inputs the temperature electrical signal to the microprocessor, the microprocessor corrects the displacement signal according to the temperature signal, in comparison with a flow signal obtained by uncorrected displacement signal, the flow signal obtained according to the corrected electrical signal has a higher precision.
Description
Technical field
The utility model relates to a kind of suspended body flowmeter, especially a kind ofly can revise suspended body flowmeter owing to the data error that causes of temperature, improve the Electronic Temperature Offset type suspended body flowmeter of the measuring accuracy of suspended body flowmeter.
Background technology
Suspended body flowmeter; Be called the constant-pressure drop variable area type flow meter again, have one section upright Taper Pipe and a float freely to fluctuate therein only usually, when fluid is flowed through Taper Pipe from bottom to top with the flow size; The thrust that the kinetic energy of fluid produces on float and the buoyancy of fluid rise float; Along with the annular circulation area between Taper Pipe inwall and the float increases, the thrust that fluid dynamic energy produces on float descends thereupon, when thrust and buoyancy sum equal the float self gravitation; It is circulation annular space area maintenance one timing between float and Taper Pipe; Float is in equilibrium state, and is stabilized in a certain height, and the flow of suspended body flowmeter is flow through in the scale indication that this height and position is corresponding.The lifting height of annular space area and float is proportional, and promptly a certain height of float is represented the size of flow.Moving up and down of float, the mode of closing through the magnetic lotus root passes to a guide rod, and guide rod drives the needle deflection of indicator, makes pointer indication flow.
Suspended body flowmeter is used for measuring the single-phase flow flow of liquid in the closed conduct, gas and steam more; Have simple in structure; Easy to maintenance; Good reliability, characteristics such as applicability is wide are widely used in flow measurement and the process control and the water treatment field of industrial sectors such as oil, chemical industry, electric power, metallurgy, medicine, food, light industry.
Electrical distance transmitting type suspended body flowmeter is meant in the on-the-spot indication of pointer flow; Convert the angular displacement of guide rod into electric signal by angular displacement sensor; And through the output of 4～20mA standard signal; Electrical distance transmitting type suspended body flowmeter can with computer networking, realize long-distance transmissions, demonstration, record, adjusting and the control of flow.
At present, the more angular displacement sensor of domestic and international application is HMC1501.The core component of HMC1501 angular displacement sensor---HMC1501 angular displacement chip is to adopt to process with the iron-bearing materials of permalloy, and this material constant can change with temperature; Thereby influence the sensitivity and the bias voltage of electric bridge, based on the suspended body flowmeter of HMC1501 angular displacement sensor, because the maximum error that temperature causes is 2%～5%; And the measuring accuracy of suspended body flowmeter is 1.5%～2.5%; So based on the suspended body flowmeter of HMC1501 angular displacement sensor, very sensitive to temperature, under the big situation of variation of ambient temperature; Can not satisfy the degree of accuracy requirement of measurement; When this just causes teletransmission type suspended body flowmeter to use at the scene, because variation of ambient temperature causes the error of its output data bigger than normal.
Summary of the invention
The purpose of the utility model is to overcome the shortcoming of prior art, proposes a kind ofly can revise suspended body flowmeter because the data error that causes of temperature variation and then improve the Electronic Temperature Offset type suspended body flowmeter of the measuring accuracy of suspended body flowmeter.
For achieving the above object, the technical scheme that the utility model adopted is:
A kind of Electronic Temperature Offset type suspended body flowmeter; Float in the taper tube chamber that comprise the flowtube, first guide rod that runs through the flowtube setting that have the taper tube chamber, is arranged on flowtube; What float was fixing is set on first guide rod; Above-mentioned suspended body flowmeter also comprises a displacement transducer, a temperature sensor, a microprocessor, and displacement transducer, temperature sensor difference carry-out bit shifting signal and temperature signal are to microprocessor.
The flow through taper tube chamber of flowtube of fluid; Promoting float moves up and down together with first guide rod; Displacement sensor is to the displacement of first guide rod, and converts the displacement that records to the electric signal input microprocessor, simultaneously; Temperature sensor senses is to environment temperature; And the temperature signal input microprocessor, microprocessor is revised displacement signal according to temperature signal, and the flow signal that obtains according to revised electric signal has higher accuracy than the flow signal that is obtained by uncorrected displacement signal.
Technique scheme can also be further perfect:
As preferably, above-mentioned Electronic Temperature Offset type suspended body flowmeter comprises that also one is built in built-in magnet in the float, one and is arranged on outside and second guide rod vertical with first guide rod of flowtube, a circular magnet that is fixed on second guide rod, one end.
As preferably, the circular magnet and second guide rod are homocentric, and the axle center of the Plane of rotation of circular magnet and second guide rod is perpendicular, and effect has magnetic coupling force between float and the circular magnet.
Built-in magnet in the float has formed the magnetic coupled system with the circular magnet that is arranged on second guide rod, when float moves up and down, through magnetic coupling interaction, drives the circular magnet and second guide rod and rotates.
As preferably, displacement transducer is an angular displacement sensor.Because effect has magnetic coupling force between float and the guide rod, second guide rod rotates with moving up and down accordingly of float, and angular displacement sensor is used to measure the rotational displacement of second guide rod, and with the angular displacement signal input microprocessor that records.
As preferably, above-mentioned Electronic Temperature Offset type suspended body flowmeter also comprises a signal output apparatus, and microprocessor is through signal output apparatus delivery rate electric signal.
As preferably, above-mentioned Electronic Temperature Offset type suspended body flowmeter also comprises a LCD LCDs, and microprocessor output shows signal is to the LCD LCDs.
As preferably, above-mentioned Electronic Temperature Offset type suspended body flowmeter also comprises a keyboard that is electrically connected with microprocessor.
Because the employing of technique scheme, the utility model compared with prior art has the following advantages:
Suspended body flowmeter based on the HMC1501 angular displacement sensor; The maximum data error that causes owing to temperature have 2%～5%. adopt the technical scheme that the utility model provides suspended body flowmeter; Compensated because the data error that temperature causes; Make circuit error 0.5%, thus make the global error < 1.5% of suspended body flowmeter.
Description of drawings
Fig. 1 is a kind of synoptic diagram of the related suspended body flowmeter of the utility model;
Fig. 2 is the right view of the related suspended body flowmeter of the utility model;
Fig. 3 is a kind of synoptic diagram of the wiring board part of the related suspended body flowmeter of the utility model.
Wherein: 1, flowtube; 2, second guide rod; 3, float; 4, displacement transducer; 5, temperature sensor; 6, microprocessor; 7, first guide rod; 8, circular magnet; 9, signal output apparatus; 10, LCD LCDs; 11, keyboard.
Embodiment
Like Fig. 1, Fig. 2 and a kind of Electronic Temperature Offset type suspended body flowmeter shown in Figure 3; Float 3 in first guide rod 7 that comprise the flowtube 1 that has the taper tube chamber, runs through that flowtube 1 is provided with, the taper tube chamber that is arranged on flowtube 1; Float 3 fixing being set on first guide rod 7; Above-mentioned suspended body flowmeter comprises that also a displacement transducer 4, one are used for the temperature sensor 5 of induced environment temperature, a microprocessor 6, and displacement transducer 4, temperature sensor 5 be angle displacement signal and temperature signal to microprocessors 6 respectively.
Above-mentioned magnetic coupling interaction power is to be built in built-in magnet (Fig. 1 has identified the magnetic pole of float 3, N and S) in the float 3, one by one to be arranged on the magnetic coupled system that second outside and vertical with first guide rod guide rod 2 of flowtube 1 and fixing circular magnet that is set in second guide rod, 2 one ends 8 form and to form.When float 3 moved up and down, built-in magnet was through magnetic coupling interaction, and the drive circular magnet is communicated with second guide rod 2 rotates together, and displacement transducer 4 is measured the rotational displacement amount of second guide rod 2.
Concrete, in the present embodiment, the circular magnet 8 and second guide rod 2 are homocentric, and the axle center of the Plane of rotation of circular magnet 8 and second guide rod 2 is perpendicular.
Like Fig. 3, Electronic Temperature Offset type suspended body flowmeter also comprises a signal output apparatus 9, and microprocessor 6 is through signal output apparatus 9 delivery rate electric signal; A LCD LCDs 10, microprocessor 6 output shows signal are to LCD LCDs 10; And keyboard 11 that is electrically connected with microprocessor 6.
The flow through taper tube chamber of flowtube 1 of fluid; Promoting float 3 connections first guide rod 7 moves up and down together; Second guide rod 2 rotates (rotation direction of second guide rod 2 and circular magnet 8 being shown, L and R among Fig. 1) with circular magnet 8 with moving up and down accordingly of float 3, and the angular displacement of second guide rod 2 is sensed in displacement transducer sense 4; And convert angular displacement to electric signal input microprocessor 6; Simultaneously, temperature sensor 5 is sensed environment temperature, and temperature signal input microprocessor 6; Microprocessor 6 is revised according to temperature signal diagonal displacement signal, and the flow signal that obtains according to revised electric signal has higher accuracy than the flow signal that is obtained by uncorrected angular displacement signal.
Should be understood that this embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Claims (7)
1. Electronic Temperature Offset type suspended body flowmeter; Float (3) in the taper tube chamber that comprise the flowtube (1) that has the taper tube chamber, run through first guide rod (7) that described flowtube (1) is provided with, is arranged on described flowtube (1); What described float (3) was fixing is set on described first guide rod (7); It is characterized in that: it also comprises a displacement transducer (4), a temperature sensor (5), a microprocessor (6), and described displacement transducer (4), temperature sensor (5) be carry-out bit shifting signal and temperature signal to described microprocessor (6) respectively.
2. Electronic Temperature Offset type suspended body flowmeter according to claim 1 is characterized in that: it comprises that also one is built in built-in magnet in the described float (3), one and is arranged on outside and second guide rod (2) vertical with described first guide rod (7) of described flowtube (1), a circular magnet (8) that is fixed on described second guide rod (2) one ends.
3. Electronic Temperature Offset type suspended body flowmeter according to claim 2; It is characterized in that: described circular magnet (8) is homocentric with second guide rod (2); And; The axle center of the Plane of rotation of described circular magnet (8) and described second guide rod (2) is perpendicular, and effect has magnetic coupling force between described float (3) and the circular magnet (8).
4. according to any described Electronic Temperature Offset type suspended body flowmeter in the claim 1～3, it is characterized in that: described displacement transducer (4) is an angular displacement sensor.
5. according to any described Electronic Temperature Offset type suspended body flowmeter in the claim 1 ~ 3; It is characterized in that: it also comprises a signal output apparatus (9), and described microprocessor (6) is through described signal output apparatus (9) delivery rate electric signal.
6. according to any described Electronic Temperature Offset type suspended body flowmeter in the claim 1 ~ 3; It is characterized in that: it also comprises a LCD LCDs (10), and described microprocessor (6) output shows signal is to described LCD LCDs (10).
7. according to any described Electronic Temperature Offset type suspended body flowmeter in the claim 1 ~ 3, it is characterized in that: it also comprises a keyboard (11) that is electrically connected with described microprocessor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120141331U CN202141478U (en) | 2011-05-06 | 2011-05-06 | Electron temperature compensation float flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120141331U CN202141478U (en) | 2011-05-06 | 2011-05-06 | Electron temperature compensation float flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141478U true CN202141478U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120141331U Expired - Fee Related CN202141478U (en) | 2011-05-06 | 2011-05-06 | Electron temperature compensation float flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141478U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279023A (en) * | 2011-05-06 | 2011-12-14 | 浙江迪元仪表有限公司 | Electron temperature compensated float flowmeter |
| CN103983310A (en) * | 2014-05-09 | 2014-08-13 | 金湖县仪器仪表总厂 | Permanent magnet repulsion positioning type high-precision metal tube float flowmeter |
| 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 |
| CN110567535A (en) * | 2019-09-20 | 2019-12-13 | 长春工业大学 | Turning plate type triboelectric rotor flow meter |
| CN110567539A (en) * | 2019-09-20 | 2019-12-13 | 长春工业大学 | grid dislocation type triboelectric float flowmeter |
| CN110567540A (en) * | 2019-09-20 | 2019-12-13 | 长春工业大学 | Triboelectric remote transmission float flowmeter |
| CN112254268A (en) * | 2020-10-30 | 2021-01-22 | 朱秧 | Big data intelligent air conditioning equipment with household metering function |
-
2011
- 2011-05-06 CN CN201120141331U patent/CN202141478U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102279023A (en) * | 2011-05-06 | 2011-12-14 | 浙江迪元仪表有限公司 | Electron temperature compensated float flowmeter |
| CN103983310A (en) * | 2014-05-09 | 2014-08-13 | 金湖县仪器仪表总厂 | Permanent magnet repulsion positioning type high-precision metal tube float flowmeter |
| 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 |
| CN110567535A (en) * | 2019-09-20 | 2019-12-13 | 长春工业大学 | Turning plate type triboelectric rotor flow meter |
| CN110567539A (en) * | 2019-09-20 | 2019-12-13 | 长春工业大学 | grid dislocation type triboelectric float flowmeter |
| CN110567540A (en) * | 2019-09-20 | 2019-12-13 | 长春工业大学 | Triboelectric remote transmission float flowmeter |
| CN110567540B (en) * | 2019-09-20 | 2020-10-23 | 长春工业大学 | Triboelectric remote transmission float flowmeter |
| CN112254268A (en) * | 2020-10-30 | 2021-01-22 | 朱秧 | Big data intelligent air conditioning equipment with household metering function |
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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: 20120208 Termination date: 20140506 |