CN103063330A - Organic heat carrier heat energy metering system - Google Patents
Organic heat carrier heat energy metering system Download PDFInfo
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- CN103063330A CN103063330A CN2012105790981A CN201210579098A CN103063330A CN 103063330 A CN103063330 A CN 103063330A CN 2012105790981 A CN2012105790981 A CN 2012105790981A CN 201210579098 A CN201210579098 A CN 201210579098A CN 103063330 A CN103063330 A CN 103063330A
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Abstract
An organic heat carrier heat energy metering system comprises a flow sensor, a first temperature sensor, a second temperature sensor, a flow transmitter and an intelligent operating instrument, wherein the flow sensor and the first temperature sensor are respectively arranged on an input pipeline of heat energy, the flow transmitter is connected with the flow sensor, the second temperature sensor is arranged on an output pipeline of the heat energy, and the first temperature sensor, the second temperature sensor and the flow transmitter are respectively connected with the intelligent operating instrument. The organic heat carrier heat energy metering system is used for industrial and mining enterprises having heat energy demands, organic heat carrier boiler thermal efficiency is monitored in real time through the organic heat carrier heat energy metering system, and heat consumption automatic metering and charge control are carried out between a user adopting heat conduction oil as a heat carrier and heating enterprises through the organic heat carrier heat energy metering system.
Description
[technical field]
The present invention relates to the thermal metering field, specifically refer to a kind of organic heat carrier heat energy metering system.
[background technology]
At present, the heat energy metering system of home market is mainly used in steam, hot water, chilled water etc.Because existing heat energy metering system does not take into full account character, the organic heat carrier heating system of organic heat carrier, therefore, heat energy that can't the accurate-metering organic heat carrier.
The organic heat carrier heat supply is the direction of Future Development, and thermal metering is important step.So, according to relevant country and industry standard, standard, in conjunction with the character of organic heat carrier, the characteristics of organic heat carrier heating system, the applying electronic infotech, the organic heat carrier heat energy special measuring system that the development home market has no is trend of the times.
In view of this, the inventor furthers investigate for the defective of prior art, and has this case to produce.
[summary of the invention]
Technical matters to be solved by this invention is to provide a kind of organic heat carrier heat energy metering system.
The present invention solves the problems of the technologies described above by the following technical solutions:
The organic heat carrier heat energy metering system is characterized in that:
Comprise a flow sensor, one first temperature sensor, one second temperature sensor, a flow transmitter, an intelligent computing instrument;
Described flow sensor and described the first temperature sensor are arranged at respectively on the heat energy input channel; Described flow transmitter is connected with described flow sensor; Described the second temperature sensor is arranged on the heat energy output channel;
Described the first temperature sensor, the second temperature sensor, flow transmitter are connected with described intelligent computing instrument respectively;
Described intelligent computing instrument comprises a motherboard, a LCD, a keyboard, a Switching Power Supply, a serial ports level shifting circuit, a plurality of I/O interface board;
Described motherboard is the ARM32 bit processor, has RAM, FLASH;
Described motherboard connects described LCD by display interface; Described motherboard connects described keyboard by keyboard interface; Described motherboard connects described serial port level chance-over circuit by the URAT interface; Described motherboard is connected to the I/O bus by the I/O bus interface, and the I/O bus connects described a plurality of I/O interface board; Described motherboard is the connecting valve power supply also;
Described a plurality of I/O interface board is connected respectively to described the first temperature sensor, the second temperature sensor, flow transmitter;
Described serial port level chance-over circuit has RS232 interface, RS485 interface.
Further, described motherboard also connects the USB displacement disc.
Further, described motherboard model is LPC2468.
The invention has the advantages that: be used for having the industrial and mining enterprises of heat energy demand, the boiler of organic heat carrier thermal efficiency carried out Real Time Monitoring and adopt conduction oil as carrying out thermal energy consumption automatic gauge and toll control between the user of heat energy carrier and heating enterprise by native system.Use the heat charge by actual, improved the modern management level of heating enterprise, more be conducive to the user and use, rationally use the purpose of the energy and scientific management by demand, realize energy-saving and emission-reduction, have good economic benefit and social benefit.Measuring accuracy is better than JJG225 " heat meter calibration rules " and CJ128 " calorimeter " industry standard.
[description of drawings]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is structural representation of the present invention.
Fig. 2 is intelligent computing instrument structured flowchart among the present invention.
[embodiment]
As shown in Figure 1, the organic heat carrier heat energy metering system comprises flow sensor 1, temperature sensor 2, temperature sensor 3, flow transmitter 4, intelligent computing instrument 5.
Flow sensor 1 and temperature sensor 2 are arranged at respectively on the heat energy input channel.Flow transmitter 4 is connected with flow sensor 1; Temperature sensor 3 is arranged on the heat energy output channel.
As shown in Figure 2, described intelligent computing instrument 5 comprises a motherboard, a LCD, a keyboard, a Switching Power Supply, a serial ports level shifting circuit, a plurality of I/O interface board; Wherein LCD is 5 inches monochromatic LCD, and keyboard is 18 key touch keyboards.
Described motherboard is the ARM32 bit processor, has the RAM of 128K, the FLASH of 4Gb; Also has calendar clock, backup battery, the FLASH of 512K, the SRAM of 64K.
Described motherboard connects described LCD by display interface; Described motherboard connects described keyboard by keyboard interface; Described motherboard connects described serial port level chance-over circuit by the URAT interface; Described motherboard is connected to the I/O bus by the I/O bus interface, and the I/O bus connects described a plurality of I/O interface board; Described motherboard is the connecting valve power supply also;
Described a plurality of I/O interface board is connected respectively to temperature sensor 2, temperature sensor 3, flow transmitter 4;
Described serial port level chance-over circuit has RS232 interface, RS485 interface.
Described motherboard also connects the USB displacement disc.
Described motherboard model is LPC2468.
The software systems of intelligence computing instrument 5 are made of real time operating system, I/O supervisory routine, control algolithm software, man-machine conversation software, data and communication management program.Diagnosis is arranged and program roll-back retry ability when makeing mistakes.Software has very high operational efficiency by assembly language and C language hybrid programming.Because the task of the required execution of intelligent computing instrument 5 softwares is more, calculates organic heat carrier heat energy and interrupted carrying out by timer.
Concrete steps are as follows:
Read I/O data (containing: flow sensor 1, temperature sensor 2, temperature sensor 3, flow transmitter 4), and carry out data and process.
Adopt single current quantity sensor system, native system supposition fuel supply flow rate equates with the oil return flow, based on the mass flow measurement of conduction oil, then calculates its heat flux, perhaps in the mode of supply and demand bilateral agreement oil return loss is compensated on this basis again.
The conduction oil mass flow sensor is calculated formula:
In the formula: q
m---mass rate, kg/h;
C---efflux coefficient (dimensionless);
ε---flow velocity expansion coefficient (dimensionless);
D---internal diameter of the pipeline, mm;
Δ P---the differential pressure of flow transmitter output, Pa;
ρ---conduction oil density under the duty, kg/m3;
β---caliber is than (dimensionless).
This calculating formula according to GB2624-2006 " being full of the fluid flow of pipe with orifice plate, nozzle and Venturi tube flow " or ISO5167:2003(E) " with the differential pressure device measuring flow that is installed in the round section pipeline that is full of fluid " is carried out.
The poor metering formula of heat is:
Φ=q
m(hi-ho) formula 2
In the formula:
Φ---heat flux: KJ/h
q
m---mass rate: Kg/h
Hi---fuel feeding specific enthalpy: KJ/Kg hi=f (ti)
Ho---oil return specific enthalpy: KJ/Kg ho=f (to)
Ti---oil temperature supplying: ℃
To---returning-oil temperature: ℃
The flow sensor 1 of native system sends differential pressure Δ P, and flow transmitter 4 detects differential pressure Δ P, calculates mass rate q according to formula 1
m
Native system temperature sensor 2 is measured the ti(oil temperature supplying), temperature sensor 3 is measured the to(returning-oil temperature), calculate the poor Φ of heat according to formula 2.
The data of more than measuring all are transported to intelligent computing instrument 5, and computing is all calculated by intelligent computing instrument 5.Intelligence computing instrument 5 for conduction oil and flow sensor, is set up the flow mathematical model according to relevant international standard, country and industry standard.Trade settlement and factory's measuring control network that can be widely used in the industries such as petrochemical industry, chemical industry, metallurgy, electric power, light industry, medicine and city heat supply.Can realize:
1, flux unit converts automatically, and the segmentation coefficient of flow is set.
2, calculation function: according to GB/T2624-2006(ISO5167-2003) efflux coefficient C, compressibility coefficient Z, the flow velocity expansion coefficient ε of throttle-type flow sensor are calculated in real time.Show simultaneously the various intermediate parameters in the flow sensor calculation, density p, reynolds number Re d, efflux coefficient C, compressibility coefficient Z, inflatable coefficient ε, kinetic viscosity μ, isentropic index κ etc.
3, the supplemental characteristics such as the density of conduction oil, specific enthalpy are processed.
4, trade settlement: small-signal excision, low discharge are supplied, are transfinited to compensate and measure.
5, pre paid functionality: new flow increasing and real-time surplus after inquiry is paid.
6, record of the audit: recorder powers on, power off time, record accumulative total power off time.Have a power failure and supply metering.The record modification configuration parameters time.
7, data recording: record simultaneously the instantaneous flows such as flow, temperature, pressure, differential pressure, density.
8, alarm logging: record differential pressure, temperature, the overtime of pressure.
9, accumulation form: integrated flux, heat daily sheet, month form, class's form and year form.
10, fault tolerance: differential pressure, temperature, when pressure signal is unusual, compensate computing with corresponding preset value.
11, communication function: standard Modbus rtu protocol, RS-232 or RS-485 communication interface are supported the GPRS telecommunication, support serial printer to carry out timing automatic or manually printing.
12, standard USB interface can back up configuration parameters, real time data, accumulation form, historical data, record of the audit by USB flash disk.
13, measuring accuracy is better than JJG225 " heat meter calibration rules " and CJ128 " calorimeter " industry standard.
The above only is better enforcement use-case of the present invention, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. organic heat carrier heat energy metering system is characterized in that:
Comprise a flow sensor, one first temperature sensor, one second temperature sensor, a flow transmitter, an intelligent computing instrument;
Described flow sensor and described the first temperature sensor are arranged at respectively on the heat energy input channel; Described flow transmitter is connected with described flow sensor; Described the second temperature sensor is arranged on the heat energy output channel;
Described the first temperature sensor, the second temperature sensor, flow transmitter are connected with described intelligent computing instrument respectively;
Described intelligent computing instrument comprises a motherboard, a LCD, a keyboard, a Switching Power Supply, a serial ports level shifting circuit, a plurality of I/O interface board;
Described motherboard is the ARM32 bit processor, has RAM, FLASH;
Described motherboard connects described LCD by display interface; Described motherboard connects described keyboard by keyboard interface; Described motherboard connects described serial port level chance-over circuit by the URAT interface; Described motherboard is connected to the I/O bus by the I/O bus interface, and the I/O bus connects described a plurality of I/O interface board; Described motherboard is the connecting valve power supply also;
Described a plurality of I/O interface board is connected respectively to described the first temperature sensor, the second temperature sensor, flow transmitter;
Described serial port level chance-over circuit has RS232 interface, RS485 interface.
2. organic heat carrier heat energy metering system as claimed in claim 1, it is characterized in that: described motherboard also connects the USB displacement disc.
3. organic heat carrier heat energy metering system as claimed in claim 1, it is characterized in that: described motherboard model is LPC2468.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105790981A CN103063330A (en) | 2012-08-10 | 2012-12-26 | Organic heat carrier heat energy metering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210285339.1 | 2012-08-10 | ||
| CN 201210285339 CN102818660A (en) | 2012-08-10 | 2012-08-10 | Heat metering system for organic heat carrier |
| CN2012105790981A CN103063330A (en) | 2012-08-10 | 2012-12-26 | Organic heat carrier heat energy metering system |
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| CN103063330A true CN103063330A (en) | 2013-04-24 |
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| CN 201210285339 Pending CN102818660A (en) | 2012-08-10 | 2012-08-10 | Heat metering system for organic heat carrier |
| CN2012105790981A Pending CN103063330A (en) | 2012-08-10 | 2012-12-26 | Organic heat carrier heat energy metering system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019852A (en) * | 2014-05-22 | 2014-09-03 | 国家电网公司 | Method for accurately testing feed water flow based on throttling element characteristic coefficient K |
| CN105004450A (en) * | 2015-08-03 | 2015-10-28 | 浙江华德利纺织印染有限公司 | Heat measuring method and apparatus of conduction oil |
| CN109297619B (en) * | 2018-09-11 | 2020-06-09 | 中建三局第一建设工程有限责任公司 | Heat conduction oil energy metering method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5026171A (en) * | 1989-06-07 | 1991-06-25 | Feller Murray F | Apparatus for flow rate and energy transfer measurements |
| DE29709029U1 (en) * | 1997-05-22 | 1997-07-17 | Werner Beat E | Heat meter |
| CN2393086Y (en) * | 1999-09-28 | 2000-08-23 | 清华同方股份有限公司 | Calorimeter structure |
| CN1789939A (en) * | 2005-12-21 | 2006-06-21 | 北京工业大学 | Method and apparatus for metering heat |
-
2012
- 2012-08-10 CN CN 201210285339 patent/CN102818660A/en active Pending
- 2012-12-26 CN CN2012105790981A patent/CN103063330A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5026171A (en) * | 1989-06-07 | 1991-06-25 | Feller Murray F | Apparatus for flow rate and energy transfer measurements |
| DE29709029U1 (en) * | 1997-05-22 | 1997-07-17 | Werner Beat E | Heat meter |
| CN2393086Y (en) * | 1999-09-28 | 2000-08-23 | 清华同方股份有限公司 | Calorimeter structure |
| CN1789939A (en) * | 2005-12-21 | 2006-06-21 | 北京工业大学 | Method and apparatus for metering heat |
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Application publication date: 20130424 |