CN204903043U - Self -healing precision correction ultrasonic wave heat energy metering device - Google Patents
Self -healing precision correction ultrasonic wave heat energy metering device Download PDFInfo
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- CN204903043U CN204903043U CN201520574411.1U CN201520574411U CN204903043U CN 204903043 U CN204903043 U CN 204903043U CN 201520574411 U CN201520574411 U CN 201520574411U CN 204903043 U CN204903043 U CN 204903043U
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Abstract
The utility model belongs to the technical field of energy measurement, a self -healing precision correction ultrasonic wave heat energy metering device is related to, the major structure is installed on the computing ware installing port of base table casing for the computing ware passes through threaded connection, and the chip in the computing ware is handled through the programming of self -healing precision correction technique, adopts advance TG840 main control chip and TDC -GP22 time chip, put in the transient flow's that tries to achieve according to taylor series match principle third -order on taylor series expansion formula in the procedure of computing ware, put in in the procedure of computing ware the poor processing program that returns to zero of quiet hour, put in peak -to -peak value and minimum value method in the procedure of computing ware, eliminate effectively that electronic circuit physics is asymmetric, factors such as time drift, pipeline bubble and on -the -spot noise are to measuring accuracy's influence, overall structure is simple, time measurement accuracy is high, peripheral circuit and simple process.
Description
Technical field:
The utility model belongs to energy meter technical field, relates to a kind of self-healing adjustment in accuracy ultrasonic heat energy measuring apparatus, and particularly a kind of self-healing correction technique that adopts is to improve the ultrasonic heat energy measuring apparatus of measuring accuracy, stability and reliability.
Background technology:
At present, the household metering of central heating and heat becomes the common recognition of heat supply circle already as the important social cause of energy-saving and emission-reduction and quality of improving the people's livelihood, and progressively puts on the agenda of governments at all levels; Country, from calendar year 2001, namely starts with from heating power system reform and heat metering, has put into effect some files and Policy Conditions, positive popularization heat household metering system, particularly over the past two years, country more and more payes attention to the work of popularization heat death theory, requires more and more specification; Heat energy metering device is installed at New Dwelling point family has become acceptance of work necessary condition; In the prior art, ultrasonic heat energy meter is the meter specially being mainly used in heat metering, introduced domestic after 2000 by Europe, be limited to the technical merit of chip level at that time and domestic imitation producer, very large problem is all there is in the heat energy meter produced in the accuracy of measuring and operating mode use, really can not meet domestic household metering requirement, a lot of city was through the installation pilot of nearly 2 years, numerous and confused decision no longer adopts domestic table, reason is after 1-2 Heating Season, ultrasonic heat energy meter occurs that precision is overproof, even cannot normally work; For a long time, ultrasonic heat energy meter stable accuracy sex chromosome mosaicism, it is a primary difficult problem for puzzlement industry experts always, domestic and international technical specialist and scholar, attempt the stability improving electronic devices and components by strengthening the forms such as the aging and transducer pairing of electronic devices and components electrical inspection, high/low temperature, and then improve the stability of heat energy meter precision, but the impact of time drift cannot be eliminated at all, and qualified when although the product produced dispatches from the factory, precision is overproof gradually in operating conditions; The measurement of the non-single one physical amount of the precision measure due to ultrasonic heat energy meter, the factor affecting precision is complicated, mutual cross influence; Therefore, analyze various factors to set up correct physical model, select rational circuit design and chip application to be basic link; To the acquisition process of the analysis of the method for sampling and selecting properly, data and modification method etc., setting up reliable mathematical model is accurately the final means solving error; Therefore, seek to design and a kind ofly meet national conditions and the self-healing adjustment in accuracy ultrasonic heat energy measuring apparatus of heat energy meter technical indicator can be reached, fundamentally solve the overproof problem of precision, the technical scheme that this employing self-healing correction technique improves the precision of ultrasonic heat energy meter, stability and reliability is from there are no report.
Summary of the invention:
Goal of the invention of the present utility model is the shortcoming overcoming prior art existence, in conjunction with actual demand, a kind of self-healing adjustment in accuracy ultrasonic heat energy measuring apparatus of design is proposed, cause measuring error larger to solve existing ultrasonic heat energy meter due to reasons such as electronic circuit physics is asymmetric, time drift, pipeline bubble and on-the-spot noises, have a strong impact on the problem of measuring accuracy, reduce peripheral circuit, simplify production technology, reduce the power consumption of complete machine, ensure measuring accuracy.
In order to realize foregoing invention object, the self-healing adjustment in accuracy ultrasonic heat energy measuring apparatus that the utility model relates to, its agent structure comprises base table housing, housing inlet, housing water delivering orifice, the first transducer installing port, the second transducer installing port, computation processor installing port, the first transducer, the second transducer, transducer cover plate, the first reflection pillar, the second reflection pillar, computation processor, the first temperature sensor, the second temperature sensor, the first copper sleeve, the second copper sleeve, display screen, button and connecting line; The base table housing of aldary material is the shell structure with the hollow tube cavate that hot water flows through, base table housing both ends are provided with threaded housing inlet and housing water delivering orifice, be threaded with the pipeline of peripheral hardware for base table housing, base table housing upper is respectively equipped with the first transducer installing port, the second transducer installing port and computation processor installing port; First transducer and the second transducer are placed in the first transducer installing port and the second transducer installing port respectively, are stamped transducer cover plate above the first transducer installing port and the second transducer installing port, and are screwed firmly; Base table enclosure interior diapire is just equipped with metal first reflection pillar and the second reflection pillar respectively to the position of the first transducer and the second transducer; Computation processor is threaded connection and is arranged on the computation processor installing port of base table housing, chip in computation processor is through self-healing adjustment in accuracy technology programmed process, adopt advanced TG840 main control chip and TDC-GP22 time chip, TG840 main control chip take Cortex-M3 as kernel, there is operation processing function, the performance of whole measuring apparatus is got a promotion, and TDC-GP22 has double precision mode 45ps or four accuracy modes 22ps, realizes high-precision time measurement; Enroll three rank taylor series expansions of the instantaneous delivery of trying to achieve according to Taylor series fitting principle in the program of computation processor, complete the non-liner revision to instantaneous delivery; The return-to-zero program to quiet hour difference is enrolled, to eliminate zero point drift in the program of computation processor; Enroll peak-to-peak value and minimum value method in the program of computation processor, eliminate the signal disturbing of bubble and noise; Computation processor is connected to respectively the first temperature sensor and the second temperature sensor be made up of the resistive platinum wire of pt1000, the temperature-sensitive end of the first temperature sensor and the second temperature sensor is respectively the first copper sleeve and the second copper sleeve; First transducer is connected with computation processor by connecting line respectively with the second transducer, computation processor is respectively equipped with display screen and button, realizes display and the regulation and control of metrical information.In use, first base body housing is arranged on the assigned address of the water inlet pipe in supplying hot water loop, makes to flow into from housing inlet into water, by reserving from housing water delivering orifice again after base body housing, first copper sleeve is arranged on desired location on inlet channel, the second copper sleeve is arranged on desired location on water return pipeline, press the button, computation processor instruction first transducer and the second transducer send forward and reverse ultrasound signal respectively, forward ultrasonic signal reflexes to the second reflection pillar through the first reflection pillar, the second transducer is reflexed to again through the second reflection pillar, computation processor is passed to through connecting line after second transducer acquires to signal, reverse ultrasound signal reflexes to the first reflection pillar through the second reflection pillar, the first transducer is reflexed to again through the first reflection pillar, computation processor is passed to through connecting line after first transducer acquires to signal, computation processor draws forward and reverse mistiming through computing, and then computing draws instantaneous delivery, first temperature sensor and the second temperature sensor are responded to the temperature of inlet channel and water return pipeline respectively and pass to computation processor, computation processor computing draws temperature difference, the heat Calculation formula again instantaneous delivery and temperature difference being substituted into setting carries out computing and draws calorie value and be presented on the display screen on computation processor, realizes accurate measurement and the display of heat.
The utility model compared with prior art, adopts zero point and minimum value method effectively to eliminate the factors such as electronic circuit physics is asymmetric, time drift, pipeline bubble and on-the-spot noise to the impact of measuring accuracy; Adopt the matching of Taylor technology only to need demarcation seven flow points, compared with needing to demarcate up to a hundred flow points with prior art, improve the production efficiency of heat energy meter, and precision is higher; Its one-piece construction is simple, and principle is reliable, time resolution is high, peripheral circuit and technique simple, reasonable in design, safe and reliable, environmental friendliness.
Accompanying drawing illustrates:
Fig. 1 is overall appearance structural principle schematic diagram of the present utility model.
Fig. 2 is overall cross-section structure principle schematic of the present utility model.
Embodiment:
Below by specific embodiment, also the utility model is described in further detail by reference to the accompanying drawings.
Embodiment 1:
The self-healing adjustment in accuracy ultrasonic heat energy measuring apparatus that the present embodiment relates to, its agent structure comprises base table housing 1, housing inlet 2, housing water delivering orifice 3, first transducer installing port 4, second transducer installing port 5, computation processor installing port 6, first transducer 7, second transducer 8, transducer cover plate 9, first reflection pillar 10, second reflection pillar 11, computation processor 12, first temperature sensor 13, second temperature sensor 14, first copper sleeve 15, second copper sleeve 16, display screen 17, button 18 and connecting line 19; The base table housing 1 of the aldary material shell structure of hollow tube cavate for there is hot water flowing through, base table housing 1 both ends are provided with threaded housing inlet 2 and housing water delivering orifice 3, be threaded with the pipeline of peripheral hardware for base table housing 1, base table housing 1 top is respectively equipped with the first transducer installing port 4, second transducer installing port 5 and computation processor installing port 6; First transducer 7 and the second transducer 8 are placed in the first transducer installing port 4 and the second transducer installing port 5 respectively, are stamped transducer cover plate 9 above the first transducer installing port 4 and the second transducer installing port 5, and are screwed firmly; Base table housing 1 interior bottom wall is just equipped with metal first reflection pillar 10 and the second reflection pillar 11 respectively to the position of the first transducer 7 and the second transducer 8; Computation processor 12 is threaded connection and is arranged on the computation processor installing port 6 of base table housing 1, chip in computation processor 12 is through self-healing adjustment in accuracy technology programmed process, adopt advanced TG840 main control chip and TDC-GP22 time chip, TG840 main control chip take Cortex-M3 as kernel, there is operation processing function, the performance of whole measuring apparatus is got a promotion, and TDC-GP22 has double precision mode 45ps or four accuracy modes 22ps, realizes high-precision time measurement; Enroll three rank taylor series expansions of the instantaneous delivery of trying to achieve according to Taylor series fitting principle in the program of computation processor 12, complete the non-liner revision to instantaneous delivery; The return-to-zero program to quiet hour difference is enrolled, to eliminate zero point drift in the program of computation processor 12; Enroll peak-to-peak value and minimum value method in the program of computation processor 12, eliminate the signal disturbing of bubble and noise; Temperature-sensitive end computation processor 12 being connected to respectively the first temperature sensor 13 and the second temperature sensor 14, first temperature sensor 13 and the second temperature sensor 14 be made up of the resistive platinum wire of pt1000 is respectively the first copper sleeve 15 and the second copper sleeve 16; First transducer 7 is connected with computation processor 12 by connecting line 19 respectively with the second transducer 8, computation processor 12 is respectively equipped with display screen 17 and button 18, realizes display and the regulation and control of metrical information.
Base body housing 1 in use, is first arranged on the assigned address of the water inlet pipe in supplying hot water loop by the present embodiment, makes to flow into into water from housing inlet 2, by reserving from housing water delivering orifice 3 after base body housing 1 again, first copper sleeve 15 is arranged on desired location on inlet channel, the second copper sleeve 16 is arranged on desired location on water return pipeline, press the button 18, computation processor 12 instruction first transducer 7 and the second transducer 8 send forward and reverse ultrasound signal respectively, forward ultrasonic signal reflexes to the second reflection pillar 11 through the first reflection pillar 10, the second transducer 8 is reflexed to again through the second reflection pillar 11, computation processor 12 is passed to through connecting line 19 after second transducer 8 collects signal, reverse ultrasound signal reflexes to the first reflection pillar 10 through the second reflection pillar 11, the first transducer 7 is reflexed to again through the first reflection pillar 10, computation processor 12 is passed to through connecting line 19 after first transducer 7 collects signal, computation processor 12 draws forward and reverse mistiming through computing, and then computing draws instantaneous delivery, first temperature sensor 13 and the second temperature sensor 14 are responded to the temperature of inlet channel and water return pipeline respectively and pass to computation processor 12, computation processor 12 computing draws temperature difference, the heat Calculation formula again instantaneous delivery and temperature difference being substituted into setting carries out computing and draws calorie value and be presented on the display screen 17 on computation processor 12, realizes accurate measurement and the display of heat.
Embodiment 2:
The present embodiment carries out stability and repeatability metering experiment to multiple measuring apparatus respectively, and its particular content and step are:
(1) get the product 6 of the present embodiment, identify 1#, 2#, 3#, 4#, 5#, 6# respectively; According to JJG225-2001 " heat meter calibration code " requirement, under same test condition, examine and determine under 3 flow points (2500,250,50L/h) respectively transducer change before, change after do not demarcate static with change after demarcate the flow accuracy of static three, test data result is as follows:
(2) get the product of the present embodiment and each 3 of the calorimeter of other manufacturer production, identify 1#, 2#, 3#, 4#, 5# and 6# respectively; According to JJG225-2001 " heat meter calibration code " requirement, under same test condition, under 3 flow points (2500,250,50L/h), the flow accuracy before and after transducer is changed in calibrating respectively, and experimental data contrast is as follows:
(3) product 10 of the present embodiment is got, identify 1#, 2#, 3#, 4#, 5#, 6#, 7#, 8#, 9#, 10# respectively, in (50 ± 5) DEG C water, measure the flow before and after its experiment continuously in 2500,750,250 and 50L/h tetra-flow points respectively, experimental data contrast is as follows:
Test data before experiment:
Test data after experiment:
(3) get the product 10 of the present embodiment, be test under the test condition of (60 ± 5) DEG C in water temperature, after 2 ~ 3 Heating Seasons, carry out accuracy detection to it, measuring accuracy still meets national secondary table standard.
Analyze above-mentioned experimental data can obtain, change transducer in the present embodiment product uses, when component electrical parameter and physical parameter change, the present embodiment product still meets national secondary table standard, precision all within 1%, far below national standard, and accuracy data is consistent before and after experiment, the product of the present embodiment has good reliability and stability, and measuring accuracy is high, and environment for use is friendly.
Claims (1)
1. a self-healing adjustment in accuracy ultrasonic heat energy measuring apparatus, is characterized in that its agent structure is combined by base table housing, housing inlet, housing water delivering orifice, the first transducer installing port, the second transducer installing port, computation processor installing port, the first transducer, the second transducer, transducer cover plate, the first reflection pillar, the second reflection pillar, computation processor, the first temperature sensor, the second temperature sensor, the first copper sleeve, the second copper sleeve, display screen, button and connecting line and forms; Base table housing is the shell structure of hollow tube hollow type, and base table housing both ends are provided with threaded housing inlet and housing water delivering orifice, and base table housing upper is respectively equipped with the first transducer installing port, the second transducer installing port and computation processor installing port; First transducer and the second transducer are placed in the first transducer installing port and the second transducer installing port respectively, are stamped transducer cover plate above the first transducer installing port and the second transducer installing port; Base table enclosure interior diapire is just equipped with metal first reflection pillar and the second reflection pillar respectively to the position of the first transducer and the second transducer; Computation processor is threaded connection and is arranged on the computation processor installing port of base table housing, and the chip in computation processor adopts TG840 main control chip and TDC-GP22 time chip; Computation processor is connected to respectively the first temperature sensor and the second temperature sensor be made up of the resistive platinum wire of pt1000, the temperature-sensitive end of the first temperature sensor and the second temperature sensor is respectively the first copper sleeve and the second copper sleeve; First transducer is connected with computation processor by connecting line respectively with the second transducer, computation processor is respectively equipped with display screen and button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574411.1U CN204903043U (en) | 2015-07-31 | 2015-07-31 | Self -healing precision correction ultrasonic wave heat energy metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520574411.1U CN204903043U (en) | 2015-07-31 | 2015-07-31 | Self -healing precision correction ultrasonic wave heat energy metering device |
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| Publication Number | Publication Date |
|---|---|
| CN204903043U true CN204903043U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520574411.1U Expired - Fee Related CN204903043U (en) | 2015-07-31 | 2015-07-31 | Self -healing precision correction ultrasonic wave heat energy metering device |
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| CN (1) | CN204903043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841762A (en) * | 2016-03-17 | 2016-08-10 | 广州周立功单片机科技有限公司 | Supersonic wave water meter flow metering method and system |
-
2015
- 2015-07-31 CN CN201520574411.1U patent/CN204903043U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105841762A (en) * | 2016-03-17 | 2016-08-10 | 广州周立功单片机科技有限公司 | Supersonic wave water meter flow metering method and system |
| CN105841762B (en) * | 2016-03-17 | 2019-04-26 | 广州周立功单片机科技有限公司 | The flow metering method and system of ultrasonic water meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171116 Address after: 266000 Shandong province Qingdao City Donghai Road No. 7 C 3 unit 102 Co-patentee after: GUANGZHOU NANYANG POLYTECHNIC Patentee after: Liu Baojun Address before: 266000 Shandong province Qingdao City Donghai Road No. 7 C 3 unit 102 Patentee before: Liu Baojun |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20210731 |
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| CF01 | Termination of patent right due to non-payment of annual fee |