CN203216533U - Portable flow rate/flow quantity meter - Google Patents
Portable flow rate/flow quantity meter Download PDFInfo
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- CN203216533U CN203216533U CN 201320255762 CN201320255762U CN203216533U CN 203216533 U CN203216533 U CN 203216533U CN 201320255762 CN201320255762 CN 201320255762 CN 201320255762 U CN201320255762 U CN 201320255762U CN 203216533 U CN203216533 U CN 203216533U
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Abstract
A portable flow rate/flow quantity meter is provided. An electromagnetic flow rate sensor is electrically connected with a flow rate/flow quantity display instrument adopting a battery as power supplying power source through a communication cable, such that the portable flow rate/flow quantity meter can be formed. The flow rate/flow quantity display instrument provides stable exciting current for the electromagnetic flow rate sensor; the electromagnetic flow rate sensor collects induced electromotive forces which are in direct proportion to the flow rate of a measured fluid, and transmits the induced electromotive forces to the flow rate/flow quantity display instrument through the communication cable; the induced electromotive forces are subjected to amplification and analog-digital conversion processing so as to form flow rate/flow quantity data of the measured fluid; and results are displayed by a liquid crystal display. The portable flow rate/flow quantity meter is advantageous in portable convenience, convenience and quickness in flow measurement, and high precision and wide range in measurement; and the portable flow rate/flow quantity meter can be either used as a flow rate meter or used as an open-channel flow quantity meter, and can satisfy measurement requirements of the flow rate and flow quantity of different open channels and closed channels (such as river channels), and can assist in avoiding intertwining and blocking in measurement process, and can work reliably for a long term, and is suitable for on-line flow quantity/flow rate measurement of conductive liquids.
Description
Technical field
The utility model relates to a kind of flow rate instrument, portable flow rate instrument particularly, and it is applicable to flow velocity and the flow of conducting liquids such as measuring river, lake and channel.
Background technology
At present, when measuring the flow velocity of water bodys such as river, lake and channel, the current meter kind of employing is a lot, mainly contains three types of mechanical type, electric measuring type and ultrasonic types.Rotating plasma/cup-type current meter is exactly a kind of in the mechanical type current meter, and it is by rotating plasma/revolve cup, stature and empennage three parts to form.At rotating plasma/revolve parts such as signalling contact and rotating shaft system are installed in the cup, this rotating shaft system complex structure, its inside is full of light machine oil.Though it has the performance of waterproof sand prevention preferably, can using at a high speed and in the heavily silt-carrying river, can improve rate accuracy, still, the long and long sound of its signal, signal are neglected length, are neglected short instability; And rotate revolve glass no signal and rotating shaft dumb, have and beat or stop phenomenon suddenly.More can't accurately measure low flow velocity signal.Can directly have influence on accuracy and the degree of accuracy of fluid-velocity survey like this, and have limitation very too.
Summary of the invention
The purpose of this utility model is to provide a kind of portable flow rate instrument, it can overcome the deficiency of prior art, it is convenient and swift to have flow measurement, the characteristics that can show point velocity, mean velocity in section, water level multinomial measurement parameters such as (manually inputs) simultaneously, it not only is easy to carry, and measurement range is wide, the measuring accuracy height.
Its solution is: the electromagnetic current speed sensors is electrically connected with the flow rate display instrument that with the battery is power supply by the communication cable line, constitutes portable flow rate instrument.Provide stable exciting current by the flow rate display instrument that with the battery is power supply for the electromagnetic current speed sensors, the induced potential that is directly proportional with the flow velocity of detected fluid by the collection of electromagnetic current speed sensors, send the converter of flow rate display instrument to through the communication cable line, the overflow means basic structure dimensional data that this converter incorporates is inserted in advance by the outer function key of converter and the actual grade data of detected fluid, finally calculate the point velocity of detected fluid and the mean flow rate of flow section by the mathematical model of converter inside, flow value, its result shows through LCDs.
Described electromagnetic current speed sensors is reached by sensor master head and constitutes with the balance empennage that sensor master head is connected by sensor axis.On sensor axis, be connected with hanging ring by axis of traction.And sensor master head is by a sensor master shell and interior through the field coil sealing pouring adhesive insulated enclosure and that be electrically connected with converter and place a pair of measurement signal electrode in the electrode shield to constitute, and field coil and electrode shield all place on the pole shoe.Gathered the induced potential of detected fluid by this electromagnetic current speed sensors.
Described flow rate display instrument is by the battery of display instrument housing and interior installation thereof, the converter that is electrically connected with battery and power switch constitute, the display instrument housing is provided with LCDs, and key being set, adding key, subtracting function keys such as key and ESC Escape on the converter arranged, finish setting to the converter desired parameters by the above-mentioned functions key, by calculated with mathematical model detected fluid mean velocity in section and the flow of converter inside, the result is shown by LCDs.
The utility model adopts technique scheme, provide stable exciting current by the flow rate display instrument that with the battery is power supply for the electromagnetic current speed sensors, the induced potential that this electromagnetic current speed sensors collection is directly proportional with the flow velocity of detected fluid, send the flow rate display instrument to and become flow velocity, the flow of detected fluid with analog-to-digital conversion process through amplification, and show.Its flow measurement is convenient and swift, measuring accuracy is high, both can measure flow velocity simultaneously and also can measure flow value, and measurement range is wide, is 0.005m/s-10m/s, and can show the multinomial measurement parameter such as flow velocity, water level of tested conducting liquid simultaneously.But a tractor serves several purposes both can have been done velocimeter and use, and also can make open-channel meter and use, and can satisfy different section structure such as rectangle, trapezoidal open channel, the flow velocity of closed conduit (river course) and the measurement of flow.And this flow rate instrument is giant-screen LCD demonstration backlight and the design of little power consumption, is power supply with the 3.6V chargeable lithium cell, but the continuous working 80 hours of once charging.Because the electromagnetic current speed sensors does not have movable member, when measuring, can not produce winding, stop up continuous working reliably and with long-term again.It is applicable to the online flow velocity of conducting liquid, the measurement of flow.
Description of drawings
Fig. 1 is the structural representation front view of portable flow rate instrument.
Fig. 2 is the main enlarged drawing of looking of structural representation of flow rate display instrument lower house among Fig. 1.
Fig. 3 is the fundamental diagram of electromagnetic current speed sensors.
Fig. 4 is the electrical schematic diagram of portable flow rate instrument.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Among Fig. 1, Fig. 2, the electromagnetic current speed sensors is electrically connected with the flow rate display instrument 15 that with the battery is power supply by communication cable line 16, constitutes portable flow rate instrument.The electromagnetic current speed sensors is made with Faraday's electromagnetic induction law, it is reached the sensor axis 7 that is threaded with it by sensor master head, peg graft with sensor axis 7 and by the fixing balance caudal wing shaft 23 of bolt 19, being connected with balance empennage 20 on this caudal wing shaft 23 constitutes, on sensor axis 7, be connected with dismountable axis of traction 17, respectively be connected with a hanging ring 18 on the upper/lower terminal of axis of traction 17.And be connected with movably fin weight bolt 21 at a fin of balance empennage 20, be connected with wing axle weight bolt 22 on the not end of balance caudal wing shaft 23, the quality of balance by fin weight bolt 21 and wing axle weight bolt 22 correcting sensor axles 7 is in order to proofread and correct the direction of electromagnetic current speed sensors.And sensor master head is by sensor master head capsule body 1 and interior pole shoe 5 through insulation resin glue 2 insulated enclosures thereof, place on the pole shoe 5 and the field coil 6 that is electrically connected with converter 24 and electrode shield 3, a pair of measurement signal electrode 4 formations that place in the electrode shield 3 and be electrically connected with converter 24.And the display instrument housing that the flow rate display instrument is interlockingly connected and is constituted for one by display instrument upper shell and display instrument lower house 25, the 3.6V chargeable lithium cell of installing in this display instrument housing 27, the converter 24 and the power switch 13 that are electrically connected with described lithium battery 27 through lead 26 constitute.Big screen LCD 14 is arranged on the panel of display instrument upper shell, adopt high-resolution backlight LCD display, at converter 24 key 10 is set, subtracts key 9, adds key 12 and ESC Escape 11 function keys.By the above-mentioned functions key converter 24 is carried out the setting of desired parameters.
When turning on the power switch 13, supply with field coil 6 electric currents by converter 24 by communication cable line 16, the field coil 6 that feeds behind the electric current can produce closed field circuit along the axis direction of vertical electromagnetic current speed sensors, has on this loop direction perpendicular to measurement signal electrode 4 axis directions and again perpendicular to the magnetic line of force of detected fluid direction.When detected fluid is made cutting magnetic line movement, will produce the induced potential that is directly proportional with flow velocity, detect this induced potential by measurement signal electrode 4, and send converter 24 to by communication cable line 16.As shown in Figure 3, Figure 4.What converter 24 was inserted in advance by the function key on converter 24 is the basic structure dimensional data of the overflow means of the detected fluid measured by the measurement length tape measure that other is equipped with, and the actual grade data of the detected fluid of measuring simultaneously, the mathematical model that adds upconverter 24 inside is calculated the point velocity of detected fluid, and mean flow rate and the data on flows of flow section, the result is shown by LCDs 14.
During flow measurement, at first use the measurement length tape measure that is equipped with this flow rate instrument to measure the basic structure size of the overflow means of detected fluid, measure the actual grade of detected fluid simultaneously, then these parameters are inserted converter 24 inside by the function key on the converter 24, and with function key input converter 24 inside of parameter on described converter 24 of the relevant position in the tested channel in measurement signal electrode 4 places, at last, hang last hanging ring 18 on the axis of traction 17 with the lifting rope of providing for oneself, and at the additional mass (as fish lead) of providing for oneself of hanging ring down.The electromagnetic current speed sensors is put among the detected fluid of assigned address again, make the connecting line of a pair of measurement signal electrode 4 perpendicular to the detected fluid direction, and balance empennage 20 is determined the direction of electromagnetic current speed sensors at the downstream direction that conducting liquid flows to by balance empennage 20.Because the electromagnetic current speed sensors is placed in the deep water of detected fluid.The actual direction of this sensor can't be observed, the direction of described sensor can be corrected by balance empennage 20.When if balance empennage 20 1 ends occurring and sinking to causing sensor axis 7 front and back uneven, then can come the quality of balance of correcting sensor axle 7 by mobile fin weight bolt 21 and wing axle weight bolt 22.Collected the induced potential of detected fluid by the electromagnetic current speed sensors, send converter 24 to, converter 24 carries out flow velocity, the flow that digital-to-analog conversion is processed into detected fluid by the relevant data of inserting in advance and the mathematical model of converter 24 inside, and show, can finish the measurement to tested channel fluid.
Claims (3)
1. portable flow rate instrument, it is characterized in that the electromagnetic current speed sensors is electrically connected with the flow rate display instrument (15) that with the battery is power supply by communication cable line (16), constitute portable flow rate instrument, provide stable exciting current by the flow rate display instrument (15) that with the battery is power supply for the electromagnetic current speed sensors, the induced potential that is directly proportional with the flow velocity of detected fluid by the collection of electromagnetic current speed sensors, send the converter (24) of described flow rate display instrument (15) to through communication cable line (16), this converter (24) is in conjunction with the overflow means basic structure dimensional data of the detected fluid of inserting in advance by the outer function key of converter (24) and the actual grade data of detected fluid, finally calculate the point velocity of detected fluid and the mean flow rate of flow section by the inner mathematical model of converter (24), flow value, its result shows through LCDs (14).
2. portable flow rate instrument as claimed in claim 1, it is characterized in that the electromagnetic current speed sensors constitutes by sensor master head and by the balance empennage (20) that sensor axis (7) is connected with sensor master head, be connected with hanging ring (18) at sensor axis (7) by axis of traction (17), and sensor master head is by a sensor master shell (1) and interiorly constitute through field coil (6) sealing pouring adhesive (2) insulated enclosure and that be electrically connected with converter (24) and a pair of measurement signal electrode (4) that places electrode shield (3), and field coil (6) and electrode shield (3) all place on the pole shoe (5).
3. portable flow rate instrument as claimed in claim 1, it is characterized in that flow rate display instrument (15) is by the battery (27) of display instrument housing and interior installation thereof, the converter (24) that is electrically connected with battery (27) and power switch (13) constitute, the display instrument housing is provided with LCDs (14), and be provided with key (10) being set, adding key (12), subtracting key (9) and ESC Escape (11) function key on the converter (24), finish setting to converter (24) desired parameters by the above-mentioned functions key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320255762 CN203216533U (en) | 2013-05-04 | 2013-05-04 | Portable flow rate/flow quantity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320255762 CN203216533U (en) | 2013-05-04 | 2013-05-04 | Portable flow rate/flow quantity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216533U true CN203216533U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320255762 Expired - Lifetime CN203216533U (en) | 2013-05-04 | 2013-05-04 | Portable flow rate/flow quantity meter |
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| Country | Link |
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| CN (1) | CN203216533U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049561A (en) * | 2014-07-04 | 2014-09-17 | 郑州星睿水利科技有限公司 | Flow measuring remote control instrument |
| CN105486887A (en) * | 2015-12-15 | 2016-04-13 | 唐山现代工控技术有限公司 | Application method of hand-held ultrasonic measurement channel flow velocity apparatus |
| CN107559596A (en) * | 2017-10-18 | 2018-01-09 | 常州港华燃气有限公司 | A kind of pipeline gas flow monitor and gas pipeline examination and repair system |
| CN108414032A (en) * | 2018-03-13 | 2018-08-17 | 太原理工大学 | A kind of portable open channel measuring automatically flow device |
-
2013
- 2013-05-04 CN CN 201320255762 patent/CN203216533U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049561A (en) * | 2014-07-04 | 2014-09-17 | 郑州星睿水利科技有限公司 | Flow measuring remote control instrument |
| CN105486887A (en) * | 2015-12-15 | 2016-04-13 | 唐山现代工控技术有限公司 | Application method of hand-held ultrasonic measurement channel flow velocity apparatus |
| CN105486887B (en) * | 2015-12-15 | 2018-05-18 | 唐山现代工控技术有限公司 | A kind of application method of ultrasonic hand-held wave measurement channel flow speed variator |
| CN107559596A (en) * | 2017-10-18 | 2018-01-09 | 常州港华燃气有限公司 | A kind of pipeline gas flow monitor and gas pipeline examination and repair system |
| CN107559596B (en) * | 2017-10-18 | 2023-08-08 | 常州港华燃气有限公司 | Pipeline gas flow velocity detection device and gas pipeline overhauling system |
| CN108414032A (en) * | 2018-03-13 | 2018-08-17 | 太原理工大学 | A kind of portable open channel measuring automatically flow device |
| CN108414032B (en) * | 2018-03-13 | 2020-12-18 | 太原理工大学 | Portable automatic flow measuring device for open channel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
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| CX01 | Expiry of patent term |