CN103499402A - Ultrasonic wave heat meter timing descaling device - Google Patents
Ultrasonic wave heat meter timing descaling device Download PDFInfo
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- CN103499402A CN103499402A CN201310435835.5A CN201310435835A CN103499402A CN 103499402 A CN103499402 A CN 103499402A CN 201310435835 A CN201310435835 A CN 201310435835A CN 103499402 A CN103499402 A CN 103499402A
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Abstract
The invention provides an ultrasonic wave heat meter timing descaling device. The ultrasonic wave heat meter descaling device comprises a first ultrasonic wave measurement energy converter, a second ultrasonic wave measurement energy converter, a first temperature sensor, a second temperature sensor and a circuit board. The first ultrasonic wave measurement energy converter and the second ultrasonic wave measurement energy converter are arranged in a pipeline in a matched mode, the first temperature sensor is arranged on a pipeline at the water feeding position, and the second temperature sensor is arranged on a pipeline at the water drainage position. The circuit board comprises a processor, a measuring unit, a descaling unit and a switching unit. The first ultrasonic wave measurement energy converter and the second ultrasonic wave measurement energy converter are both connected with the measuring unit, and the descaling unit comprises an ultrasonic wave descaling energy converter arranged in the pipeline. According to the ultrasonic wave heat meter timing descaling device, a timing control power signal control mechanism is used for achieving control over the ultrasonic wave descaling energy converter; the measuring precision of the measuring unit is effectively improved, and the service life of products is prolonged.
Description
Technical field
The present invention relates to a kind of heat energy measurement mechanism, relate in particular to a kind of ultrasonic heat energy meter.
Background technology
Ultrasonic heat energy meter has a pair of transducer, also has a pair of reflector plate.Transducer and reflector plate are arranged in the pipeline section in table.The hot water of the heat supply in winter in pipeline section is muddy, not only can forge incrustation scale at transducer and reflector plate, and can adhere to one deck barrier film, and incrustation scale and barrier film will be blocked emission, transmission and the reception of ultrasonic signal.Meeting scaling after 3 years, cause table basically just can't work.Need to adopt the structure of on-the-spot dismountable scouring.But the cleaning one action amount of visiting every 3 years is very large.The anti-scaling property of heat energy meter is an independently performance, not relevant to skill level or the degree of protection of heat energy meter, and this is the water body decision due to work.Therefore be necessary to propose a kind of ultrasonic heat energy meter of timing scale removal.
Summary of the invention
In view of problems of the prior art, the invention provides regularly apparatus for eliminating sludge of a kind of ultrasonic heat energy meter, comprise the first ultrasonic measurement transducer be equipped with and the second ultrasonic measurement transducer that are installed in pipeline, be located at into the first temperature sensor of water place pipeline, be located at the second temperature sensor of water outlet place pipeline, and circuit board; Circuit board comprises processor, measuring unit, scale removal unit, switch unit, the first ultrasonic measurement transducer all is connected with measuring unit with the second ultrasonic measurement transducer, measuring unit comprises differential temperature survey unit and time difference measurement unit, the first temperature sensor all is connected with the differential temperature survey unit with the second temperature sensor, measuring unit coordinates the measurement realized pipeline inner fluid calorie value with switch unit, and by the measurement result sending processor; The scale removal unit comprises the ultrasound wave descaling transducer of being located in pipeline.
In some embodiments, processor is controlled the scale removal unit and is opened after the set time, after certain time, closes.To reach the purpose of intermittently controlling the work of scale removal unit.
In some embodiments, the set time is 1 month, and certain hour is 20 minutes.Calorimetry and scale removal are rationally moved, on the basis of the saving energy, realize regularly scale removal.
In some embodiments, measuring unit carries out a flow measurement every 5 seconds, carries out a temperature survey every 30 seconds.Realize regularly scale removal on the basis of the saving energy.
Ultrasonic heat energy meter provided by the invention is apparatus for eliminating sludge regularly, embed the scale removal unit in ultrasonic heat energy meter, processor reaches the function of controlling the ultrasound wave descaling transducer by timing controlled power signal control gear, the ultrasound wave descaling transducer is converted into electric signal the ultrasound wave that is applicable to the scale removal frequency, and can realize scale removal work not affecting on the mobile basis of fluid.And the measuring accuracy of measuring unit, the serviceable life of having improved product have effectively been improved.
The accompanying drawing explanation
The structural representation that Fig. 1 is ultrasonic heat energy meter timing apparatus for eliminating sludge in one embodiment of the invention;
Fig. 2 is the regularly module map of apparatus for eliminating sludge of the ultrasonic heat energy meter shown in Fig. 1.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is described in further detail explanation.
As shown in Figure 1, 2, the invention provides regularly apparatus for eliminating sludge of a kind of ultrasonic heat energy meter, comprise that screw thread is installed on the first ultrasonic measurement transducer 2 be equipped with and the second ultrasonic measurement transducer 3 in pipeline 1, screw thread is fixed in the first temperature sensor 4 into water place pipeline, screw thread is fixed in the second temperature sensor of water outlet place pipeline (due on the pipeline of other sections, not shown in the figures), and circuit board 5 and display unit 6, circuit board 5 comprises processor, measuring unit, communication unit, the scale removal unit, switch unit, and Power Management Unit, the first ultrasonic measurement transducer 2 all is connected with measuring unit with the second ultrasonic measurement transducer 3, measuring unit also comprises differential temperature survey unit and time difference measurement unit, the first temperature sensor 4 all is connected with differential temperature survey with the second temperature sensor, measuring unit coordinates the mensuration realized pipeline 1 inner fluid calorie value with switch unit, and by the measurement result sending processor, processor is presented at measurement result on display unit 6, the accumulation heat of processor carries memory stores every month, the value of flow.The scale removal unit comprises ultrasound wave descaling transducer 7 and the power signal control gear of being located in pipeline 1.Above-mentioned ultrasound wave descaling transducer 7 is made for giant magnetostrictive material, and scale removal of the present invention unit belongs to prior art, does not do and repeats herein.Power Management Unit is for providing the power environment of cooperation, and communication unit sends other peripherals by measurement result.Processor comprises timer, Timer Controlling scale removal unit.
The Timer Controlling scale removal unit of processor of the present invention was opened every 1 month, continued to close after 20 minutes.
Above-mentioned the first ultrasonic measurement transducer 2 be equipped with and the second ultrasonic measurement transducer 3 forward or reverse transmission accept ultrasonic signal, can be taked mounting means of the present invention, also can adopt other mounting meanss, and the present invention is not restricted this.
In addition, processor of the present invention is the MSP430F417 single-chip microcomputer.It is embedded with the JTAG debugging interface, and also having can the FLASH storer that wipe of electricity, has facilitated use, and has in super low-power consumption, powerful processing power, multi-clock module and abundant sheet the characteristics such as peripheral hardware.Measuring unit is the TDC-GP2 chip.TDC-GP2 has the functions such as High speed pulse generator, stop signal, time measurement, temperature survey and clock control, and these special functional modules make it be very suitable for the application of flow measurement and calorimetry aspect.Switch unit is the grace intelligence Pu 74CBTLV1G125 of semiconductor company chip.The XC61CN2702MR chip that Power Management Unit is the blue Electronics Co., Ltd. in Taide, Shenzhen.Good power environment is provided, and sends the instruction of save data to processor in the unsafe situation of power environment.
More specifically, the present invention carries out a flow measurement every 5 seconds, carries out a temperature survey every 30 seconds.When carrying out flow measurement, pulse producer in MSP430F417 Single-chip Controlling TDC-GP2 produces transponder pulse, encourage the first ultrasonic measurement transducer 2 to send ultrasonic signal, the second ultrasonic measurement transducer 3 is as receiving transducer, commencing signal of this pulse signal genration is opened the timing module of the time difference measurement unit of TDC-GP2 simultaneously, and timing starts.The ultrasound wave that the first ultrasonic measurement transducer 2 produces propagates into the second ultrasonic measurement transducer 3 through ducted liquid, the second ultrasonic measurement transducer 3 receives ultrasonic signal, produce a response electric signal, and this signal is carried out to the moment of zero passage detection to determine that signal arrives, select to produce the timing module that a more stable termination signal stops TDC-GP2, so far timing completes simultaneously.
Read the travel-time of ultrasonic signal in this direction sound path from the register of TDC-GP2.The transmission-receiving function of two transducers of switch unit 74CBTLV1G125 chip switching under then being controlled by processor, same processing mode can obtain the travel-time in the other direction sound path.The preferred 1MHz ultrasound wave of measuring-signal of the present invention, make the present invention be more suitable for measuring the hot water of the temperature of 40～65 ℃ of left and right, and result is accurate.
The mistiming of the gained of positive and negative two directions being propagated by processor is processed, and can obtain flow value, completes the flow measurement process one time.
In the temperature survey process, the MSP430F417 single-chip microcomputer sends order to TDC-GP2, the open temp measurement function, thereby automatically completing capacitor discharge time by TDC-GP2 measures, measure complete, read this time value by the MSP430F417 single-chip microcomputer, then calculate temperature value by the temperature computation program, complete thus a temperature survey.
In addition, the MSP430F417 single-chip microcomputer is regularly controlled ultrasound wave descaling transducer 7 by power ratio control signal controlling mechanism every other month and is sent the scale removal ultrasound wave.And can realize scale removal work not affecting on the mobile basis of fluid.The radiation of scale removal ultrasound wave in water, make fluid thrill and produce ten hundreds of small bubbles, the negative pressuren zone that these bubbles form in the ultrasound wave longitudinal propagation produces, growth, and at the zone of positive pressure rapid closing, in this process that is called as cavitation effect, small bubble can produce when closed and surpass 1000 atmospheric instantaneous pressures.The instantaneous pressure successively produced, continuous impact object surface just as a succession of little blast, peel off rapidly the dirt in body surface and gap, thereby reach the purpose of cleaning objects.The preferred 40kHz of the present invention is as cleaning frequency, and this is owing to after cleaning, can not the inwall of ultrasonic heat energy meter pipeline section being produced to damage, and makes the present invention particularly applicable to the warm water pipeline.
In addition, when voltage, during lower than 2.7V, Power Management Unit XC61CN2702MR chip of the present invention sends instruction to display unit, shows under-voltage symbol, changes battery by communication unit remote transmitting system prompting user simultaneously.Power Management Unit of the present invention can also comprise the XC61CC2102MR chip, and when cell voltage reduces to 2.1V, the XC61CC2102MR chip sends instruction to single-chip microcomputer, thereby after the single-chip microcomputer save data, outage realizes the protection to circuit.
The present invention by embedding the scale removal unit in ultrasonic heat energy meter, make ultrasonic heat energy meter have the function of scale removal concurrently, and pass through the work of Single-chip Controlling ultrasound wave descaling transducer 7, automatically convenient, effectively improve the measuring accuracy of measuring unit, improved the serviceable life of product.The present invention rationally moves calorimetry and scale removal, on the basis of the saving energy, realizes regularly scale removal.
Above listed a series of detailed description is only illustrating for feasibility embodiment of the present invention; they are not in order to limit the scope of the invention, all disengaging within equivalent embodiment of the present invention or change all should be included in protection scope of the present invention.
Claims (4)
1. ultrasonic heat energy meter apparatus for eliminating sludge regularly, it is characterized in that, comprise the first ultrasonic measurement transducer (2) be equipped with and the second ultrasonic measurement transducer (3) that are installed in pipeline (1), be located at the first temperature sensor (4) into water place pipeline, be located at the second temperature sensor of water outlet place pipeline, and circuit board (5); Described circuit board (5) comprises processor, measuring unit, scale removal unit, switch unit, described the first ultrasonic measurement transducer (2) all is connected with described measuring unit with the second ultrasonic measurement transducer (3), described measuring unit comprises differential temperature survey unit and time difference measurement unit, described the first temperature sensor (4) all is connected with described differential temperature survey unit with the second temperature sensor, described measuring unit coordinates the measurement realized pipeline (1) inner fluid calorie value with described switch unit, and by the measurement result sending processor; Described scale removal unit comprises the ultrasound wave descaling transducer (7) of being located in pipeline (1).
2. a kind of ultrasonic heat energy meter timing apparatus for eliminating sludge according to claim 1, is characterized in that, described processor is controlled described scale removal unit and opened after the set time, after certain time, closes.
3. a kind of ultrasonic heat energy meter timing apparatus for eliminating sludge as claimed in claim 2, is characterized in that, the described set time is 1 month, and described certain hour is 20 minutes.
4. a kind of ultrasonic heat energy meter timing apparatus for eliminating sludge according to claim 3, is characterized in that, described measuring unit carries out a flow measurement every 5 seconds, carries out a temperature survey every 30 seconds.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310435835.5A CN103499402A (en) | 2013-09-23 | 2013-09-23 | Ultrasonic wave heat meter timing descaling device |
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| CN201310435835.5A CN103499402A (en) | 2013-09-23 | 2013-09-23 | Ultrasonic wave heat meter timing descaling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706062A (en) * | 2016-12-19 | 2017-05-24 | 湖北正源智能科技有限公司 | Intelligent descaling water meter of Internet of Things |
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| US20040007245A1 (en) * | 2002-07-15 | 2004-01-15 | Hans Hecht | Method for cleaning of a measuring element passed over by a gas flow |
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Application publication date: 20140108 |