CN2515667Y - All digital domestic cold/heat quantity meter - Google Patents
All digital domestic cold/heat quantity meter Download PDFInfo
- Publication number
- CN2515667Y CN2515667Y CN 01247151 CN01247151U CN2515667Y CN 2515667 Y CN2515667 Y CN 2515667Y CN 01247151 CN01247151 CN 01247151 CN 01247151 U CN01247151 U CN 01247151U CN 2515667 Y CN2515667 Y CN 2515667Y
- Authority
- CN
- China
- Prior art keywords
- cold
- digital
- heat
- flowmeter
- hot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Details Of Flowmeters (AREA)
Abstract
The utility model relates to a fully digital cold and heat meter, comprising a flowmeter, temperature measurement sensors and a heat /cold totalizer. The temperature measurement sensors adopt digital temperature sensors; the digital temperature sensors and the flowmeter are respectively connected with PI/O and GND of signal input interfaces of the heat /cold totalizer by means of signal wires; the digital temperature sensors are arranged in special shaped tees of a temperature detector, and are arranged on a feed water piping and a returning water piping. The meter applies the digital temperature sensors to the heat /cold totalizer, which realizes the digital sampling of the temperature and makes the connection of the sensors no longer restricted by the length of the wire. Thus, the utility model can achieve higher precision of the cold/heat metering compared with the traditional meter, and is easy to be produced, installed and used in mass.
Description
Technical field
The utility model relates to a kind of in heating or adopt in the cold process instrument that the hot/cold amount that consumes is measured, and is specially a kind of totally digitilized family cold and heat meter.
Technical background
What at present domestic and international various calorimeter adopted is Pt500 or Pt1000 type platinum resistance, this means that the conductor resistance of temperature element outgoing cable may bring about 2.7 ℃ to 0.5 ℃ error when 1 Europe, therefore must limit the length of cable.
Because platinum sensor 1 ℃ of every variation when thermometric, resistance changes 0.37% approximately, also must on platinum resistance, add constant current source in order to drive away this signal, to platinum resistance by one not with the steady current of change in resistance, the variation of resistance is converted to voltage signal, if the electric current of constant current source is 100 μ A, voltage signal only has 0.037mv, also to just may be used for calculating through amplifying, more than these processes be analog signal processing, in requiring little power consumption, the instrument in 5 years of powered battery continuous working, stability and precision all are difficult to guarantee.
Problem at the prior art existence, the utility model is applied to heat/cold meter with digital temperature sensor, realize the digital collection of temperature, make the connection of temperature sensor no longer be subjected to the restriction of conductor length, and it is more stable, with the realization cold/heat metering precision higher, and be easy to realize large-scale production, installation and use than conventional art.
Summary of the invention
The technical solution of the utility model is as follows:
Total digitalization family cold and heat meter, comprise flowmeter, temperature probe and hot/cold amount integrating instrument, it is characterized in that temperature probe adopts digital temperature sensor, digital temperature sensor all links to each other with GND by the PI/O of signal wire with the signal input interface of hot/cold amount integrating instrument respectively with flowmeter; Digital temperature sensor is arranged in the hygrosensor profiled tee joint, is installed on into, on the water return pipeline.Flowmeter and hot/cold amount integrating instrument are partly assembled and are become integrative-structure closely.
Described hot/cold amount integrating instrument connects a display module by a single-chip microcomputer by signal wire and constitutes.The signal transmission coverage of flowmeter, temperature probe and hot/cold amount integrating instrument can reach 50m.
Outstanding advantage of the present utility model is to have adopted digital temperature sensor in this gauging table, uses digital intelligent compensation technology, makes thermometric resolution and precision improve an order of magnitude, and do not exist in theory temperature float with the time float; Simultaneously, signal wire length can reach 50 meters, do not influence measuring accuracy, promptly the signal wire limitation of length value of Yun Xuing than Pt1000 height more than 10 times, and can not bring transmission error, therefore, help the requirement of engineering of when old heating system is transformed hotlist being installed greatly, and cost is more or less the same during with the use platinum resistance.
Description of drawings
Fig. 1 be totally digitilized family with cold and heat meter install with pipeline in structural drawing;
Fig. 2 is the circuit block diagram of totally digitilized family with cold and heat meter;
Fig. 3 is the interface circuit figure of digital temperature sensor and single-chip microcomputer.
Embodiment
Embodiment: referring to Fig. 1 and Fig. 2, this is that this gauging table is installed on example in the pipeline, gauging table is by DS1820 digital temperature sensor 2, flowmeter 5, cold/heat integrating instrument 4 and signal wire 3 constitute, DS1820 digital temperature sensor 2 and flowmeter 5 link to each other with the GND end with the PI/O of the signal input interface of hot/cold amount integrating instrument 4 respectively by signal wire 3, referring to Fig. 3, with advancing of will collecting, leaving water temperature and flow signal pass to hot/cold amount integrating instrument 4, hot/cold amount integrating instrument 4 is made of single-chip microcomputer and display module, single-chip microcomputer calculates the hot/cold amount, is shown on the screen by display module.DS1820 digital temperature sensor 2 is installed in the hygrosensor profiled tee joint 1, and hygrosensor profiled tee joint 1 is installed on respectively on the forward and backward pipeline of the heat radiation/cooling piece 6 in the pipeline.Flowmeter 5 and the assembling of hot/cold amount integrating instrument 4 parts become integrative-structure closely.
In above-mentioned example, if use platinum resistance temperature sensor, the accuracy of detection of temperature only is 0.1 ℃, and adopt the DS1820 digital temperature sensor can make accuracy of detection bring up to 0.01 ℃, and because what adopt is digital data transmission, length requirement to lead is not high, can make conductor length reach 30 meters.In addition, what DS1820 adopted is the crystal temperature effect detection mode, and stability is better, has not only improved the precision of heat energy table, and has not needed special pairing, for the production of heat energy table and installation (for, water return pipeline apart from each other time) provide condition more easily.And be more conducive to produce in enormous quantities.
The key of employing digital temperature sensor is the demarcation to temperature sensor, by up-to-date " calorimeter People's Republic of China (PRC) city-building industry standard ", when 5.0 ℃, 15.0 ℃, 25.0 ℃, 40.0 ℃, 55.0 ℃, 70.0 ℃, 85.0 ℃ and 95.0 ℃, use exact constant temperature groove (0.001 ℃ of constant temperature precision) that digital temperature sensor is carried out metrology and measurement, check.Technical indicator is:
1. mate (in pairs) precision:＜0.02 ℃
2. temperature-measuring range: 5-125 ℃
3. time constant:＜10 seconds
4. cable length: 30m
Claims (3)
1. totally digitilized family cold and heat meter, comprise flowmeter, temperature probe and hot/cold amount integrating instrument, it is characterized in that temperature probe adopts digital temperature sensor (2), digital temperature sensor (2) all links to each other with GND by the PI/O of signal wire (3) with the signal input interface of hot/cold amount integrating instrument (4) respectively with flowmeter (5); Digital temperature sensor (2) is arranged in hygrosensor profiled tee joint (1), is installed on into, on the water return pipeline, and flowmeter (5) and the assembling of hot/cold amount integrating instrument (4) part become integrative-structure closely.
2. totally digitilized family according to claim 1 cold and heat meter is characterized in that hot/cold amount integrating instrument (4) connects a display module by a single-chip microcomputer by signal wire and constitutes.
3. totally digitilized family according to claim 1 cold and heat meter is characterized in that the signal wire length of flowmeter (5), digital temperature sensor (2) and hot/cold amount integrating instrument (4) is 50m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247151 CN2515667Y (en) | 2001-08-01 | 2001-08-01 | All digital domestic cold/heat quantity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247151 CN2515667Y (en) | 2001-08-01 | 2001-08-01 | All digital domestic cold/heat quantity meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2515667Y true CN2515667Y (en) | 2002-10-09 |
Family
ID=33658049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247151 Expired - Fee Related CN2515667Y (en) | 2001-08-01 | 2001-08-01 | All digital domestic cold/heat quantity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2515667Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383506C (en) * | 2004-05-28 | 2008-04-23 | 黄瑞湄 | Heat exchange energy-saving efficient metering method and apparatus |
| GB2548429A (en) * | 2016-08-10 | 2017-09-20 | Meters Uk Ltd | A heat meter |
-
2001
- 2001-08-01 CN CN 01247151 patent/CN2515667Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383506C (en) * | 2004-05-28 | 2008-04-23 | 黄瑞湄 | Heat exchange energy-saving efficient metering method and apparatus |
| GB2548429A (en) * | 2016-08-10 | 2017-09-20 | Meters Uk Ltd | A heat meter |
| GB2548429B (en) * | 2016-08-10 | 2018-05-16 | Meters Uk Ltd | A heat meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206945156U (en) | A kind of bus-type underground pipe wireless temperature measurement system | |
| CN109375291A (en) | A kind of temperature and air pressure suitable for sonde and humidity measuring instrument and method | |
| CN208537050U (en) | A kind of multichannel three-wire system platinum resistance thermometer sensor, temperature measuring equipment | |
| CN2515667Y (en) | All digital domestic cold/heat quantity meter | |
| CN101788521B (en) | Metal corrosion condition online test method and detecting instrument thereof | |
| CN201514246U (en) | Inserted type thermal type liquid quality flowmeter | |
| CN201251490Y (en) | Cold and hot energy integrating instrument | |
| CN2556654Y (en) | Atmospheric turbulance and meterological sounding device | |
| CN102706485A (en) | Ultrasonic heat meter with double flowmeters | |
| CN202614425U (en) | Double-flowmeter ultrasonic calorimeter | |
| CN113310588A (en) | Remote temperature detection device based on mercury thermometer | |
| CN1294409C (en) | Heat quantity flow and temp. metering correcting method | |
| CN203132724U (en) | Dual-redundancy digital temperature sensor | |
| CN202420590U (en) | Electronic gas meter | |
| CN206038177U (en) | Three -way formula platinum resistance PT100 temperature measuring system | |
| Nan et al. | Development on intelligent small-flow target flow meter | |
| CN204902951U (en) | Digital capacitanc level meter based on TDC chip technology | |
| CN204608064U (en) | A kind of sketch-based user interface double bridge circuit high precision Furnace Water Temperature Difference testing circuit | |
| CN2543964Y (en) | Water temp on-line detector for blast furnace | |
| CN209623879U (en) | A kind of dismountable platinum sensor | |
| CN202420719U (en) | Multifunctional calorimeter | |
| CN216955816U (en) | Wall heat conductivity testing device | |
| CN207472343U (en) | Solid flow detection device | |
| CN115435849A (en) | High-speed acquisition flowmeter based on LORA communication | |
| CN204461641U (en) | A kind of power station temperature measuring circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING HUOSHI DAMP-PROOF EQUIPMENT MANUFACTURIN Free format text: FORMER NAME OR ADDRESS: CHONGQING HOUSEHOLD INTELLIGENT METER MAKING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Chongqing Shi Shi moistureproof Equipment Manufacturing Co., Ltd. Patentee before: Chongqing Household Intelligent Meter Making Co., Ltd., |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |