CN202420719U - Multifunctional calorimeter - Google Patents
Multifunctional calorimeter Download PDFInfo
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- CN202420719U CN202420719U CN201120539228XU CN201120539228U CN202420719U CN 202420719 U CN202420719 U CN 202420719U CN 201120539228X U CN201120539228X U CN 201120539228XU CN 201120539228 U CN201120539228 U CN 201120539228U CN 202420719 U CN202420719 U CN 202420719U
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Abstract
The utility model aims to disclose a multifunctional calorimeter, which comprises a metering unit, a control unit, a transduction switch unit, a display module, a data transmission module, a pressure sensing module and a power module. The control unit is respectively connected with the metering unit, the transduction switch unit, the display module, the data transmission module, the pressure sensing module and the power module. The transduction switch unit is connected with the metering unit. A metering end of the metering unit is respectively connected to a hot water pipeline and a cold water pipeline. An output end of the transduction switch unit is connected to the hot water pipeline. The pressure sensing module is connected with a pressure valve. Compared with the prior art, the multifunctional calorimeter has the advantages of high metering accuracy, low equipment power consumption, large metering range, high reliability and the like. The purpose to disclose the multifunctional calorimeter is achieved.
Description
Technical field
The utility model relates to a kind of calorimeter, particularly a kind of multifunctional heating scale that is applicable to case and bag.
Background technology
Existing ultrasonic calorimeter is to measure flow and show that current discharge or absorb the instrument of thermal energy through heat-exchange system through the ultrasound wave time difference method; The flow of physical quantity-thermal barrier that it records through two kinds of sensors and the temperature of import and export; Pass through the compensation and the integral and calculating of density and heat enthalpy value again, just can obtain calorie value.Ultrasonic calorimeter is a kind of electromechanical integrated product that is the basis with microprocessor and high-precision sensor, compares with gauging table-water meter, ammeter or gas meter with the family that building industry is generally used in the past, and more complicated design and higher technology content are arranged.Ultrasonic calorimeter is a kind of high-tech product that comprises machinery, electronics and infotech, has obtained successful application at present in a lot of fields.
The ultrasonic flow meter principle of work: the information of rate of flow of fluid on just carrying when ultrasound wave is propagated in flowing fluid just can detect flow rate of fluid through the ultrasound wave that receives, thereby be converted into flow.
Ultrasonic pulse is passed pipeline and is arrived another sensor from a sensor, and when fluid did not flow, ultrasonic pulse was propagated on both direction with identical speed (velocity of sound); If ducted fluid has certain flow rate V (this flow velocity is not equal to zero); Then transmit hurry up along the ultrasonic pulse meeting of flow direction; And transmit more slowly against the ultrasonic pulse meeting of flow direction; Like this, the following current transmission time can lack, and adverse current transmission time president a little (said here length a little or shorter all be when not flowing with fluid transmission time Comparatively speaking); Mode according to detecting also can be divided into dissimilar ultrasonic flow meters such as propagation speed differential method, Doppler method, wave beam deflection method, noise method and correlation method.Play the acoustic wave flow meter and be in recent ten years along with integrated circuit technique develops just begin to use a kind of rapidly.
Ultrasonic flow meter is shown by ultrasonic transducer, electronic circuit and flow and accumulation system three parts are formed; The electronic circuit of ultrasonic flow meter comprises emission, reception, signal Processing and display circuit, and instantaneous delivery that records and cumulative flow value show with digital quantity or analog quantity.Ultrasound transmitting transducer converts electrical energy into ultrasonic energy; And it is transmitted in the detected fluid; The ultrasonic signal that receiver receives; Amplify and convert that the electric signal of represent flow is supplied with demonstration and integrating meter shows and integrating into through electronic circuit, so just realized the detection and the demonstration of flow.
Ultrasonic flow meter is used piezoelectric transducer always, and it utilizes the piezoelectric effect of piezoelectric, adopts the radiating circuit of fitting out to be added to electric energy on the piezoelectric element of transmitting transducer, its generation ultrasound wave is shaken advise; Ultrasound wave is injected in the fluid at an angle and is propagated, and is received by receiving transducer then, and becomes electric energy through piezoelectric element, so that detect, transmitting transducer utilizes the inverse piezoelectric effect of piezoelectric element, and receiving transducer then is to utilize piezoelectric effect.
Ultrasonic flow meter belongs to contactless instrument, is suitable for measuring fluid and the large-caliber flow that is difficult for contact and observes, the flow measurement that it and water level gauge interlock can be opened wide current.
Use ultrasonic flow meter, not be used in and install and measure element in the fluid, so can not change the flow state of fluid, do not produce additional drag, the installation and maintenance of instrument all can not influence the production flow line operation thereby be a kind of desirable energy-saving flowmeters.Ultrasonic flowmeter can be measured non-conductive liquid, is being that a kind of of electromagnetic flowmeter replenished aspect the nothing obstruction flow measurement.
Yet the flow velocity of liquid usually is several meters of per seconds in the general industry metering, and the velocity of propagation of ultrasound wave in liquid is about about 1500m/s, and it also is 10 that detected fluid flow velocity (flow) changes the variable quantity maximum that brings the velocity of sound
-3The order of magnitude, if requiring the accuracy of measurement flow rate is 1%, then the accuracy of measurement to the velocity of sound is required to be 10
-5-10
-6Therefore the order of magnitude must have perfect measuring circuit to realize.
Therefore, need a kind of multifunctional heating scale especially, solved the problem of above-mentioned existing existence.
The utility model content
The purpose of the utility model is to provide a kind of multifunctional heating scale, to the deficiency of prior art, has the measuring accuracy height, and at the bottom of the equipment power dissipation, measurement range is big, characteristics such as reliability height.
The technical matters that the utility model solved can adopt following technical scheme to realize:
A kind of multifunctional heating scale is characterized in that, it comprises a measuring unit, a control module, a transducing switch unit, a display module, a data transmission module, a pressure sensing module and a power module; Said control module is connected mutually with power module with said measuring unit, transducing switch unit, display module, data transmission module, pressure sensing module respectively; Said transducing switch unit is connected mutually with said measuring unit; The measuring junction of said measuring unit is connected in hot water line and the cold water pipeline; The output terminal of said transducing switch unit is connected on the hot water line, and said pressure sensing module is connected with pressure valve.
In an embodiment of the utility model, said measuring unit is a time difference measurement chip.
In an embodiment of the utility model, said control module is a FLASH type super low-power consumption processor.
In an embodiment of the utility model, said display module is the one-part form liquid crystal display.
In an embodiment of the utility model, said data transmission module is a GPRS module.
In an embodiment of the utility model, said pressure sensing module is a diffused silicon pressure transmitter.
The multifunctional heating scale of the utility model has following advantage:
1, high-acruracy survey, the flow measurement aspect: the linearity is superior to 0.5%, and repeatability precision is superior to 0.2%, and measuring accuracy is superior to ± and 1%, the beginning, moving flow was minimum; The temperature survey aspect: temperature sensor adopts import high precision PT1000 to guarantee measuring accuracy, adopts Newton iterative, realizes measuring the temperature high precision computation;
2, measurement range is big, selects the sensor of different model for use, can realize the measurement of bore DN15-DN6000mm pipeline flow;
3, comprehensive human-computer interaction function, integraph external hanging type structure makes things convenient for the user to observe and operates; Can be according to the flowmeter of different editions, support Chinese or menu in English, convenient and swift, built-in integral and intelligent printer can be in real time, timed print;
4, reliability is high, adopts low-voltage, multiple-pulse radiating circuit, and measuring accuracy, serviceable life and reliability significantly improve, compact conformation, and integrated design sound construction damage resistance is good;
5, powerful memory function is remembered preceding 512 days, preceding 128 months, preceding 10 years integrated flow automatically, remembers preceding 64 incoming calls and power-off time and flow automatically, and whether the duty of the preceding 32 daily flow meters of memory is normal automatically;
6, advanced person's flow algorithm, dynamic flow backoff algorithm and dynamic data statistic algorithm are realized the accurate measurement of flow;
7, super low-power consumption, control module adopt the American TI Company MSP430 series microprocessor of 16 bit, advanced little power consumption design;
8, Wireless Networking function carries the GPRS module, can carry out single and the management of batch table end through the computer terminal, also can order the his-and-hers watches end to be controlled through SMS;
9, pipeline pressure self-test function, the self-contained water pressure sensor of calorimeter can be taked the hydraulic pressure of each node, and each heat supply point pressure of controlled pressure operation valve setting, for heat supply unit provides more detailed management and controlling tactics;
10, real time data calibration can be carried out the online data calibration to all hot measuring terminals through the PC end.
The multifunctional heating scale of the utility model compared with prior art, has the measuring accuracy height, and at the bottom of the equipment power dissipation, measurement range is big, characteristics such as reliability height, the purpose of realization the utility model.
The characteristics of the utility model can consult this case graphic and below better embodiment detailed description and obtain to be well understood to.
Description of drawings
Fig. 1 is the structural representation of the multifunctional heating scale of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, the multifunctional heating scale of the utility model, it comprises a measuring unit 100, a control module 200, a transducing switch unit 300, a display module 400, a data transmission module 500, a pressure sensing module 600 and a power module 700; Said control module 200 is connected mutually with power module 700 with said measuring unit 100, transducing switch unit 300, display module 400, data transmission module 500, pressure sensing module 600 respectively; Said transducing switch unit 300 is connected mutually with said measuring unit 100; The measuring junction of said measuring unit 100 is connected in hot water line and the cold water pipeline; The output terminal of said transducing switch unit 300 is connected on the hot water line, and said pressure sensing module 600 is connected with pressure valve 610.
In the utility model; The high precision time difference measured chip TDC-GP2 that the German ACAM of said measuring unit 100 uses company produces carries out rate of flow of fluid and measures; High precision time difference measured chip TDC-GP2 has the precision and the undersized encapsulation of superelevation, is particularly suitable for the low-cost industrial application.
High precision time difference measured chip TDC-GP2 has that high-speed pulse generator, stop signal enable, temperature survey and clock control function; These special functional modules make it be fit to very much the application of ultrasonic measurement and calorimetry aspect; It has following functional characteristics: directly convert the time into numeral output, do not need the process of DA conversion; The single channel Measurement Resolution can be up to 65ps; Measurement range 500ns-4ms; Each measures passage can survey 4 pulses; The continuous data output rating of 1MHZ; There are three denoising windows to filter respectively in three samplings; Operating temperature range :-40 ℃-+125 ℃; Super low-power consumption adopts measurement range 2, and per second carries out one-shot measurement and adds primary calibration, and when power supply was 5V, current drain had only 3uA.
Simultaneously, high precision time difference measured chip TDC-GP2 also has independently temperature measurement unit, can connect two or four PT500/PT1000 or more high-resolution temperature sensor, and effective resolution can reach 16.Ultralow current drain was measured once in per 30 seconds, and electric current has only 0.08uA.
The flow velocity of the multifunctional heating scale of the utility model and temperature survey are all accomplished by high precision time difference measured chip TDC-GP2, and precision is good, and is low in energy consumption.
In the utility model; Consider that the ultrasonic calorimeter data processing amount is big; And the low-power consumption requirement of battery power supply system, said control module 200 is selected powerful FLASH type super low-power consumption processor MSP430F4152 for use, and the supply voltage of FLASH type super low-power consumption processor MSP430F4152 adopts 1.8V～3.6V low-voltage; (0.1～400uA) because of the different working pattern is different, and power consumption is merely 0.1uA under the RAM data hold mode for the power consumption electric current; The employing vector interrupts, and supports more than ten interrupt source, and can be nested arbitrarily, and is easy to use flexible; With interrupt request as long as CPU is waken up 6us, through reasonable programming.Both can reduce system power dissipation, can make quick response to outside event request again.
FLASH type super low-power consumption processor MSP430F4152 is integrated abundant outer in peripheral hardware; These peripheral hardwares comprise: house dog (WDT), analog comparator A, timer A, timer B, serial ports 0; 1, hardware trigger, segmentation liquid crystal driver, 10 ADC, SPI, I2C bus, basic timer etc. provide greatly convenient.
In the utility model, said display module 400 is used for the segmentation LCDs of man-machine interaction, and segmentation liquid crystal display power consumption is extremely low, and shows elegant in appearancely, and control module 200 carries driving circuit, and peripheral drive circuit is simplified to the utmost point, is fit to very much the demand of system.
In the utility model, said data transmission module 500 is equipped with the GPRS of Huawei module EM310, has powerful remote control function, supported web page On-line Control function and data statistics; To special hot stoichiometric point, message search is provided, uploads warning message and control function automatically.
In the utility model, said pressure sensing module 600 is a diffused silicon pressure transmitter, and pressure sensing module 600 can be taked the hydraulic pressure of each node, and according to the pressure control strategy, controlled pressure valve 610 is set each heat supply point pressure.Technical parameter:
Measuring media: gas liquid
Measurement range :-0.1～0～0.001～100MPa
Pressure type: negative pressure, absolute pressure, gauge pressure, sealing are pressed
Accuracy class: 0.2 grade
Long-time stability: ± 0.1%F.S/
Temperature drift: ± 0.01%FS/ ℃
Service area: 12～36VDC
Output signal: 0～5VDC
Probe material: 316 stainless steels
Medium temperature :-40～85 ℃
Environment temperature :-40～85 ℃
Load capacity :≤800 Ω (during the 24V power supply)
Superpressure: 200%
The performance characteristics of the multifunctional heating scale of the utility model is following:
1, high precision: the typical accuracy of the single time interval measurement of measuring unit 100 is 65ps, that is to say that the inner time through 1 logic gate is defined in about 65ps; Measuring unit 100 has extraordinary data statistics characteristic, measures through multiple averaging the typical accuracy of time measurement is dropped to about 10ps, and such data can make is measuring very low discharge (1.6m for example
3Under/h) the situation, can obtain extraordinary precision equally, the linearity is superior to 0.5%, and repeatability precision is superior to 0.2%, and measuring accuracy is superior to ± and 1%, the beginning, moving flow was minimum; Temperature sensor adopts import high precision PT1000 to guarantee measuring accuracy, adopts Newton iterative, realizes measuring the temperature high precision computation.
2, low-power consumption: measuring unit 100 will be measured with the form of pulse and carry out; Especially in ultrasonic measurement; The core measuring unit of measuring unit 100 is not at every moment all to work, and it is only measured start signal rising edge and arrives next reference clock rising edge to next reference clock rising edge and stop signal rising edge, and the middle time then accomplishes through the periodicity that calculates reference clock; Such measuring principle makes the power consumption of Measuring Time drop to low-down level; Current drain is within the scope of 3-5 μ A, if adopt the microprocessor of low-power consumption, the average current consumption of a then whole equipment can be reduced to 10-15 μ A.
3, measurement range is big: select the sensor of different model for use, can realize the measurement of bore DN15-DN6000mm pipeline flow.
4, comprehensive human-computer interaction function: integraph external hanging type structure makes things convenient for the user to observe and operates; Can be according to the flowmeter of different editions, support Chinese or menu in English, convenient and swift, built-in integral and intelligent printer can be in real time, timed print.
5, reliability is high: adopt low-voltage, multiple-pulse radiating circuit, measuring accuracy, serviceable life and reliability significantly improve, compact conformation, and integrated design sound construction damage resistance is good.
6, powerful memory function: remember preceding 512 days, preceding 128 months automatically, preceding 10 years integrated flow, remember preceding 64 incoming calls and power-off time and flow automatically, whether the duty of the preceding 32 daily flow meters of memory is normal automatically.
7, advanced person's flow algorithm: dynamic flow backoff algorithm and dynamic data statistic algorithm, realize the accurate measurement of flow.
8, super low-power consumption: control module 200 adopts the American TI Company MSP430 series microprocessor of 16 bit, advanced little power consumption design.
9, perfect management function: carry the GPRS module, can carry out single and the management of batch table end, also can order the his-and-hers watches end to be controlled through SMS through the computer terminal.
10, hydraulic pressure control function: the self-contained water pressure sensor of calorimeter can be taked the hydraulic pressure of each node, and each heat supply point pressure of controlled pressure operation valve setting, for heat supply unit provides more detailed management and controlling tactics.
11, real time data calibration: can carry out the online data calibration to all hot measuring terminals through the PC end.
More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (6)
1. a multifunctional heating scale is characterized in that, it comprises a measuring unit, a control module, a transducing switch unit, a display module, a data transmission module, a pressure sensing module and a power module; Said control module is connected mutually with power module with said measuring unit, transducing switch unit, display module, data transmission module, pressure sensing module respectively; Said transducing switch unit is connected mutually with said measuring unit; The measuring junction of said measuring unit is connected in hot water line and the cold water pipeline; The output terminal of said transducing switch unit is connected on the hot water line, and said pressure sensing module is connected with pressure valve.
2. multifunctional heating scale as claimed in claim 1 is characterized in that, said measuring unit is a time difference measurement chip.
3. multifunctional heating scale as claimed in claim 1 is characterized in that, said control module is a FLASH type super low-power consumption processor.
4. multifunctional heating scale as claimed in claim 1 is characterized in that, said display module is the one-part form liquid crystal display.
5. multifunctional heating scale as claimed in claim 1 is characterized in that, said data transmission module is a GPRS module.
6. multifunctional heating scale as claimed in claim 1 is characterized in that, said pressure sensing module is a diffused silicon pressure transmitter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120539228XU CN202420719U (en) | 2011-12-21 | 2011-12-21 | Multifunctional calorimeter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201120539228XU CN202420719U (en) | 2011-12-21 | 2011-12-21 | Multifunctional calorimeter |
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| CN202420719U true CN202420719U (en) | 2012-09-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729764A (en) * | 2015-04-03 | 2015-06-24 | 成都声立德克技术有限公司 | Ultra-small handheld ultrasonic heat flow measuring device |
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2011
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729764A (en) * | 2015-04-03 | 2015-06-24 | 成都声立德克技术有限公司 | Ultra-small handheld ultrasonic heat flow measuring device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: QIN ZHI XUE HONGWEI Effective date: 20130106 Owner name: HUINA NETWORK INFORMATION SCIENCE + TECHNOLOGY CO. Free format text: FORMER OWNER: XUE HONGWEI Effective date: 20130106 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 200135 PUDONG NEW AREA, SHANGHAI TO: 201505 PUDONG NEW AREA, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130106 Address after: 201505 Shanghai city Pudong New Area Eshan road 91 No. 5 Lujiazui Software Park 101 building 3 layer Patentee after: Huina Network Information Science & Technology Co., Ltd. Patentee after: Qin Zhi Patentee after: Xue Hongwei Address before: 200135, room 15, No. 999, Lane 1302, Dingxiang Road, Shanghai, Pudong New Area Patentee before: Xue Hongwei |
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI WINNER INTELLIGENT CONTROL TECHNOLOGY CO. Free format text: FORMER OWNER: HUINA NETWORK INFORMATION SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20130328 Free format text: FORMER OWNER: QIN ZHI XUE HONGWEI Effective date: 20130328 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 201505 PUDONG NEW AREA, SHANGHAI TO: 201512 JINSHAN, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130328 Address after: 201512 Shanghai City, Jinshan District Wei Zhen Qiu Road No. 688, building 1, unit 1, room 208, block C Patentee after: Shanghai Winner Intelligent Control Technology Co., Ltd. Address before: 201505 Shanghai city Pudong New Area Eshan road 91 No. 5 Lujiazui Software Park 101 building 3 layer Patentee before: Huina Network Information Science & Technology Co., Ltd. Patentee before: Qin Zhi Patentee before: Xue Hongwei |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151221 |
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| EXPY | Termination of patent right or utility model |