CN101174364A - Energy-saving monitoring system - Google Patents
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Abstract
The invention discloses an energy-saving monitoring system, which comprises a plurality of data acquisition devices, a synthesis tester connected with the data acquisition devices, and a background computer connected with the synthesis tester; the data acquisition devices comprise electric data acquisition devices, heat energy data acquisition devices, and other devices, and are connected with the synthesis tester through bus lines; the synthesis tester comprises a CPU unit, and a data storage unit, a data statistic unit, data computing unit, a bus interface unit, and a long-distance data transmission unit which are connected with the CPU unit; the background computer comprises a data collecting unit, a data storage Unit, and an energy-saving analysis unit connected with the long-distance data transmission unit of the synthesis tester through the data collecting unit by adopting long-distance transmission means. The invention can effectively reduce the energy source waste through the monitoring to the energy consumption condition, thus realizing the preliminary behavior energy conservation; and completes energy saving renovation and realizes technical energy conservation by using technical means.
Description
Technical field
The present invention relates to a kind of monitoring system, particularly relate to a kind of by monitoring with state such as electricity condition, thermal energy state, environment temperature, water usefulness gas and analyze, and reach the energy-saving monitoring system of energy-conservation purpose.
Background technology
At present, existing long-distance meter-reading system, what only copy and accept is the total burn-off of single energy kind, the data that only take statistics or charge be according to usefulness, and can not the energy consumption situation of power consumption user, each emphasis energy consumption equipment be added up, analyze, and do not reach energy-conservation effect.
Such as, application number is 200510050700.2 application for a patent for invention " based on the electric power remote Automatic meter reading system of GPRS network ", it is made up of the communicating circuit between electric energy meter, terminal, main website and terminal and the main website.This invention provides a kind of monitoring scheme of ammeter, but it only can monitor (promptly checking meter) to the ammeter power consumption, can not analyze the electricity consumption situation, can't reach purpose of energy saving.
Summary of the invention
The shortcoming of background technology in view of the above, fundamental purpose of the present invention provides a kind of energy-saving monitoring system, and it reaches energy-conservation purpose by monitoring with states such as electricity condition, thermal energy state, environment temperature, water usefulness gas.
For achieving the above object, the invention provides a kind of energy-saving monitoring system, the background computer that includes a plurality of data collectors, the comprehensive test instrument that is connected with data collector and be connected with comprehensive test instrument; Described data collector includes electric power data acquisition device, heat energy data collector, ambient temperature data harvester, water data collector and rock gas data collector, and is connected by bus between data collector and the comprehensive test instrument; Described comprehensive test instrument includes CPU element and the data storage cell that is connected with CPU element, data statistics unit, data computation unit, Bus Interface Unit, remote data transmission unit; Described background computer comprises that data copy and accept unit, data storage cell, energy-saving analysis unit, it is copied and accepted the unit by data and adopts the remote transmission means to be connected with the remote data transmission unit of comprehensive test instrument, and described energy-saving analysis unit comprises real-time monitoring modular, energy-conservation statistical module, energy-saving analysis module, analysis-by-synthesis module and security alarm module.
In the above-mentioned energy-saving monitoring system, described Bus Interface Unit is RS232 module, RS485 module or M-BUS module; Described remote data transmission unit is a kind of in GPRS communication module, infrared communication module, bluetooth communication module or the ethernet communication module.
In the above-mentioned energy-saving monitoring system, described electric power data acquisition device is a multifunctional electric energy meter, magnitude of voltage in its Acquisition Circuit and current value; Described heat energy data collector is flowmeter and thermometer, and it gathers the supply and return water temperature and the flow of hot duct; Described water data collector is a water meter, and it gathers the water consumption of water pipeline; Described rock gas data collector is natural gas meter, and it gathers the gas consumption of gas pipeline.
In the above-mentioned energy-saving monitoring system, described ambient temperature data harvester is the carrier acquisition device, its communication mode by low-voltage power carrier by line of electric force with data transmission to the carrier wave concentrator, the carrier wave concentrator sends data to comprehensive test instrument by bus again.
In the above-mentioned energy-saving monitoring system, energy consumption, extreme value that the data that described data statistics unit collects each data collector are added up every day by power consumption type and period, statistics failure logging and time of origin thereof, described data computation unit calculates by mathematical model the data that each data collector collects, and calculates the energy consumption statistic data; The data that data that described data statistics unit counts on and data computation unit calculate are stored in data storage cell, and send these data to background computer by the remote data transmission unit according to the default time interval.
In the above-mentioned energy-saving monitoring system, described comprehensive test instrument also includes a data acquisition unit, and it is connected with described CPU element.
In the above-mentioned energy-saving monitoring system, described background computer is the B/S structure, and client is exempted to install, and all users that can insert the internet can both find data in the extent of competence by Internet.
In the above-mentioned energy-saving monitoring system, the energy-conservation statistical module of described energy-saving analysis unit can be by the energy consumption and the time in energy consumption type and period statistics day, the moon, season, year, and the number percent of each energy consumption type, day part energy consumption; Statistics shows with the form of figure and statistical report form.
In the above-mentioned energy-saving monitoring system, the energy-saving analysis module of described energy-saving analysis unit is utilized the science algorithm, calculates the energy input of each energy kind that slatterns, the energy input that can save, finishes energy saving calculation.
In the above-mentioned energy-saving monitoring system, the analysis-by-synthesis module of described energy-saving analysis unit, synthetical collection to associated electrical force data, heat energy data and temperature data carry out analysis-by-synthesis; By the architectural environment around heating equipment, indoor and outdoor temperature and the temperature survey points such as direct combustion machine in cooling equipments such as the central air conditioning in the distribution system, the HVAC system is carried out mathematical modeling, by the data comparative analysis, data in conjunction with after parameter that collects and the statistical study analyze energy-saving potential.
Result through described analysis-by-synthesis module analysis, copy and accept the unit and the remote data transmission unit feeds back to comprehensive test instrument by data, comprehensive test instrument links to each other with corresponding D DC (PLC) field controller by fieldbus again, actuator is accepted the control signal of field controller output, and convert straight-line displacement or angular displacement to, change the actual internal area of variable valve, with the material or the energy of control inflow or outflow controlled process, thus the automatic control of implementation procedure parameter.Described actuator mainly contains air-valve actuator and aqueduct valve actuator.
In the above-mentioned energy-saving monitoring system, the security alarm module of described energy-saving analysis unit by writing down the extreme value in relevant energy consumption parameter day of each energy consumption type, moon, season, year, judges that these extreme values are whether in safe range; If the situation that a certain parameter exceeds standard, then can be in logout by instant recording, and report to the police automatically by system.
In the above-mentioned energy-saving monitoring system, the real-time monitoring modular of described energy-saving analysis unit can real-time monitor each energy consumption parameter, grasps user's status of energy consumption immediately.
The present invention is owing to take above technological means, and its beneficial effect that brings is:
1, the present invention is for strengthening with the condition that provides can be provided.Energy-conservation supervision department can provide on the basis of data at the energy-saving monitoring system platform, according to the industry standard standard user is supervised and orders the rectification, to can increase too fast or obviously exceed industry with the energy average level unit carry out administration of energy conservation.
2, the present invention provides foundation for reducing energy consumption.Each unit relies on energy-saving monitoring system further to examine when pinpointing the problems, and formulates the rational investment for trnasforming urban land plan of Technological Economy, and from providing the conservation measures suggestion with technological layers such as energy quality, energy unit is transformed targetedly.For example: utilize voltage adjusting device or voltage stabilizer to carry out the management of voltage; Reduce harmonic effects by the harmonic filtration device; Three-phase imbalance is adjusted; Increase capacitor compensation to improve power factor; Adjust the transformer load rate and optimize transformer energy consumption; Take technological means to carry out peak load shifting etc. under the situation that does not influence the normal electricity consumption of energy unit, promote energy consumption efficiency, to reach purpose of energy saving and effect.
3, the present invention can promote behavior energy saving.Constituent parts is according to self work characteristics with can characteristics, constantly sums up in energy management and improves.
4, the present invention formulates with data can be provided by norm for energy unit.By unit of the same type is carried out lateral comparison.Comprise each test unit's classification power consumption contrast, day power consumption contrast, the contrast of unit plane day of year power consumption etc. per capita,, constantly sum up rule simultaneously, progressively make with energy quota index and management method so that instruct individual unit reduction average electrical energy consumption.
5, the present invention can bring direct economic benefit, be in particular in: by energy-saving monitoring system of the present invention, instruct energy unit energy-saving and cost-reducing, can reduce energy consumption index with energy Subscriber Unit GDP, the expense that cuts down the consumption of energy simultaneously promotes enterprise profit space and fund operation space; By energy-saving monitoring system of the present invention, can instruct and assist to reduce the energy consumption cost of whole society, reduce the per GDP energy consumption index of whole society simultaneously, reduce the growing energy demand pressure of China; By energy-saving monitoring system of the present invention, can set up unified information acquisition in city and analytic system, can improve the efficiency of operation of the whole energy and environmental protection information, and the building mode by the B/S system, all types of user can be invested the construction of carrying out hardware and software systems, and the professional cost that also need not bear upgrading and safeguard just can be enjoyed the proficient service of energy-saving monitoring management system, in the mode of one-to-many, reduction information is obtained integrated cost.
Description of drawings
Fig. 1 is a structure block diagram of the present invention;
Fig. 2 is the structure block diagram of the present invention's one specific embodiment;
Fig. 3 is on-the-spot DDC (PLC) control system structure block diagram among the present invention;
Fig. 4 is certain unit 1# step down side on the 15th voltage curve November in 2006;
Fig. 5 is certain unit total power factor curve map on September 15th, 2006;
Fig. 6 is certain mechanism's heating power difference curve on February 1st, 2007;
Fig. 7 is certain mechanism's heating power thermal power curve on February 1st, 2007.
Embodiment
Below by specific embodiment and conjunction with figs. explanation embodiments of the present invention, those skilled in the art can understand advantage of the present invention and effect by the disclosed content of this instructions.
At first as shown in Figure 1, it is a structure block diagram of the present invention.A kind of energy-saving monitoring system provided by the invention, the background computer 3 that includes a plurality of data collectors 1, the comprehensive test instrument 2 that is connected with data collector and be connected with comprehensive test instrument 2.
Specifically, data collector 1 includes electric power data acquisition device 11, heat energy data collector 12, ambient temperature data harvester 13, water data collector 14 and rock gas data collector 15, and is connected by bus 4 between data collector 1 and the comprehensive test instrument 2; Comprehensive test instrument 2 includes CPU element 21 and the data storage cell 22 that is connected with CPU element 21, data statistics unit 23, data computation unit 24, Bus Interface Unit 25, remote data transmission unit 26; Background computer 3 comprises that data copy and accept unit 31, data storage cell 32, energy-saving analysis unit 33, it is copied and accepted unit 31 by data and adopts the remote transmission means to be connected with the remote data transmission unit 26 of comprehensive test instrument 2, and above-mentioned energy-saving analysis unit 33 comprises real-time monitoring modular 331, energy-conservation statistical module 332, energy-saving analysis module 333, analysis-by-synthesis module 334 and security alarm module 335.
In the present invention, Bus Interface Unit 25 can be RS232 module, RS485 module or M-BUS module.And remote data transmission unit 26 can be in GPRS communication module, infrared communication module, bluetooth communication module or the ethernet communication module a kind of; Corresponding with it, background computer 3 will be copied and accepted unit 31 by data and adopt the remote transmission means that adapt to be connected with remote data transmission unit 26, when being the GPRS communication module such as remote data transmission unit 26, background computer 3 just will be attached thereto by the GPRS means of communication, when remote data transmission unit 26 is bluetooth communication module, background computer 3 just will be attached thereto by the bluetooth communication means, by that analogy.
In concrete enforcement, above-mentioned electric power data acquisition device 11 can be a multifunctional electric energy meter, magnitude of voltage in its Acquisition Circuit and current value; Above-mentioned heat energy data collector 12 can be flowmeter and thermometer, and it gathers the supply and return water temperature and the flow of hot duct; Above-mentioned water data collector 14 can be a water meter, and it gathers the water consumption of water pipeline; Above-mentioned rock gas data collector 15 can be natural gas meter, and it gathers the gas consumption of gas pipeline.And above-mentioned ambient temperature data harvester 13 can be the carrier acquisition device, its communication mode by low-voltage power carrier by line of electric force with data transmission to the carrier wave concentrator, the carrier wave concentrator sends data to comprehensive test instrument by bus again.
The data that data statistics of the present invention unit 23 collects each data collector are added up the total of every day, point, the peak, flat, the paddy electric weight of gaining merit, always, point, the peak, flat, the forward and reverse capacity of idle power of paddy, classification (illumination, power, central air conditioning, information center) every day is total, point, the peak, flat, the paddy electric weight of gaining merit, every day total, point, the peak, flat, the forward and reverse capacity of idle power of paddy, the transformer total run time, transformer day active loss electric weight, day power factor qualification rate, day rate of qualified voltage, the per day rate of load condensate of transformer (time data memory is 20 days) is added up the extreme value and the failure message of each energy consumption parameter, data computation of the present invention unit 24 calculates the data that each data collector collects, specifically, electric aspect comprises: step down side three phase harmonic voltage (2-19 time), electric current (2-19 time), three phase harmonic voltage, electric current containing ratio (2-19 time), three-phase voltage, electric current resultant distortion rate, the three-phase current unbalance degree; The copper loss of calculating transformer, iron loss, transformer day active loss electric weight, the line loss increment that harmonic excess line loss increment, current imbalance degree exceed standard and cause; The line loss increment that power factor exceeds standard and causes.Calculating transformer momentary load rate; Hot aspect comprises: the temperature difference, with heat and conversion with heat and respectively per capita, face all uses heat; The temperature aspect comprises: medial temperature, qualification rate; Water, gas aspect comprise: total amount, face average, people's average.
The data that data that data statistics unit 23 counts on and data computation unit 24 calculate are stored in data storage cell 22, and send these data to background computer 3 by remote data transmission unit 26 according to the default time interval.
In addition, comprehensive test instrument 2 can also include a data acquisition unit 27, and it is connected 21 with CPU element, and this data acquisition unit 27 is identical with the function of above-mentioned data collector 1, also can carry out data acquisition.
Above-mentioned background computer 3 can be B/S (browser/server model) structure, and client is exempted to install, and all users that can insert the internet can both find data in the extent of competence by Internet.
The energy-conservation statistical module 332 of above-mentioned energy-saving analysis unit 33 can be by the energy consumption and the time in energy consumption type and period statistics day, the moon, season, year, and the number percent of each energy consumption type, day part energy consumption; Statistics shows with the form of figure (pie chart, histogram, curve map) and statistical report form (can import computing machine automatically).
The energy-saving analysis module 333 of above-mentioned energy-saving analysis unit 33, data after the data that collect and the statistics are utilized the science algorithm, calculate the energy input of each energy kind that slatterns, the energy input that can save and per capita, the equal energy input of face, finish energy saving calculation.
The analysis-by-synthesis module 334 of above-mentioned energy-saving analysis unit 33, synthetical collection to associated electrical force data, heat energy data and temperature data carry out analysis-by-synthesis; Promptly by the architectural environment around heating equipment, indoor and outdoor temperature and the temperature survey points such as direct combustion machine in cooling equipments such as the central air conditioning in the distribution system, the HVAC system is carried out mathematical modeling, by the data comparative analysis, in conjunction with the data after the parameter that collects, the statistical study, analyze the energy saving space and potentiality.
Feed back to comprehensive test instrument 2 through after the analysis-by-synthesis analysis result being copied and accepted unit 31 by data with remote data transmission unit 26, comprehensive test instrument 2 links to each other with corresponding D DC (PLC) field controller by fieldbus again, actuator is accepted the control signal of controller output, and convert straight-line displacement or angular displacement to, change the actual internal area of variable valve, with the material or the energy of control inflow or outflow controlled process, thus the automatic control of implementation procedure parameter.
The security alarm module 335 of above-mentioned energy-saving analysis unit 33 by writing down the extreme value in relevant energy consumption parameter day of each energy consumption type (comprising total amount), moon, season, year, judges that these extreme values are whether in safe range; If the situation that a certain parameter exceeds standard, then can be in logout by instant recording, and report to the police automatically by system.
The real-time monitoring modular 331 of above-mentioned energy-saving analysis unit 33 can real-time monitor each energy consumption parameter, grasps user's status of energy consumption immediately.Its concrete operations are as follows:
1, keeper's real time down calling order as required;
2, data are copied and accepted the calling command conversion of the keeper who receives being assigned the unit and are become corresponding signal to go to the comprehensive test instrument of appointment;
3, comprehensive test instrument is resolved address entrained in the signal, and gathers the real time data of respective table meter according to the address;
4, behind the real-time data acquisition, comprehensive test instrument carries out package with data, by GPRS, Internet packet data is uploaded to data again and copies and accepts the unit;
5, data are copied and accepted the unit and package is carried out stipulations are understood, and deposit in the data storage cell;
6, background computer refreshes automatically to real-time calling data presentation.
Below, again by one more specifically embodiment come that the present invention will be described.
To apply the present invention to large public building is example, and as shown in Figure 2, electric power data acquisition device 11 is selected multifunctional electric energy meter for use, and it is installed in (to concentrating electricity consumption loop dress table) on each road feeder line of user's switchgear building; Heat energy data collector 12 is selected flowmeter and thermometer for use, and it is installed in on the water return pipeline; Ambient temperature data harvester 13 is selected the carrier acquisition device for use, and it is installed in building indoor and outdoor (can directly be fixed in the supply socket); The water meter of water data collector 14 is installed on user's water supply line, and the natural gas meter (or gas meter) of rock gas data collector 15 is installed on user's gas supply line, and comprehensive test instrument 2 is installed in every distribution transforming (switchgear building low pressure incoming line cabinet).
(1) the present invention can carry out the voltage monitoring analysis, and is specific as follows:
Voltage is gathered by comprehensive test instrument 2 data acquisition units 27 that are installed on the switchgear building low pressure incoming line cabinet, voltage after the collection (as the voltage of 1# transformer) data, data storage cell 22 at comprehensive test instrument 2 is stored, simultaneously, the CPU element of comprehensive test instrument can be carried out logout again, when each collection point disappearance occurs or communicates by letter unsuccessful, comprehensive test instrument 2 carries out record with incident, the same day, voltage data carried out the voltage extremity statistics through the data statistics unit 23 of comprehensive test instrument, counted maximum on the same day, minimum voltage value; By GPRS network, with the same day other data pack together and upload to background computer 3, carry out data statistics through background computer 3, on the interface, can show every day, every month, per season, annual voltage curve, and voltage extremity.Simultaneously, computing machine can also be realized the voltage data of present each road feeder line and transformer is called by real-time calling function the day after tomorrow, and real time data is just shown on background computer.
By monitoring, can allow the user that quality of voltage is analyzed to voltage: overtension, motor, transformer loss (being mainly iron loss) are increased, light fixture (referring to pure resistive load here) power increases, and jeopardizes consumer safety; Brownout then influences the service efficiency of motor, and increases the loss of electric machine.
By the voltage data of Fig. 4, it is higher to analyze this flat transformer low-pressure side voltage magnitude, and suggestion is turned down two gears (2.5% 1 gear) with load tap changer, to save electric energy.As can be seen from the figure the step down side average voltage is 235V, if the average voltage after turning down is 224V, calculate according to 06 year about 3,300,000 degree of total electricity consumption of this unit, supposing has 30% pure resistive load in the load, then adjust back 1 year and can economize on electricity and be about about 90,000 degree, calculate by 0.75 yuan/kWh of average electricity price, then can economize on the use of funds the whole year about 6.7 ten thousand yuan.
(2) invention can be carried out the computational analysis of power factor, and is specific as follows:
Voltage, current data is undertaken gathering in per 15 minutes by the multifunctional electric energy meter that is installed on each road feeder line of user's switchgear building, voltage after the collection, current data, store at comprehensive test instrument 2, pass through the data computation unit 24 of comprehensive test instrument simultaneously, by electric current, voltage data, can calculate the active power of each road feeder line, reactive power, again by active power, reactive power can calculate the power factor of each road feeder line, and then carry out voltage by the data statistics unit 23 of comprehensive test instrument, electric current, reactive power, active power, the statistics of extremes of power factor, count minimum and maximum voltage on the same day, electric current, reactive power, active power, power factor value, pass through GPRS network then, with the same day other data pack together and upload to background computer 3, statistics through background computer 3 can show every day on the interface, every month, per season, annual power factor.
By improving power factor, can reduce reactive current transmission on the line, reduce the loss on transformer and the low-voltage circuit; Higher power factor can provide safeguard for transformer trouble free service in rated capacity.
According to the data of Fig. 5, we can simple computation once, establish in the non-working time, this large-scale Gongjian's average power factor is 0.9, if bring up to 0.95, then can save the energy loss about 11% on the circuit.
(3) invention can be carried out the monitoring analysis of heat supply related data, specifically have supply water temperature (℃), return water temperature (℃), the temperature difference (℃), instantaneous delivery (m
3/ h, l/h), integrated flux (m3), accumulation heat (GJ), thermal power (MW, kW), failure message, accumulated operating time (h).
According to the actual needs of heat supply, the major parameter of selecting below: heat (GJ), power (kW) are illustrated.
Heat:
Integraph according to be contained in the supply and return water temperature that records for the temperature sensor on the water return pipeline, be contained in supply water or water return pipeline on the flowmeter flow and the enthalpy that record, calculate and use heat, comprehensive test instrument regularly reads the accumulation thermal data from integraph, and per hour calculate, every day use heat, and will be hour with heat, every day being sent to background computer with heat (the calculating instrument truth of a matter) with heat and accumulation by the GPRS module.
Thermal data is used according to what comprehensive test instrument was uploaded in the energy-saving analysis unit, forms curve map or histogram, so analyze with thermal unit per hour, every day use the thermal change situation, find out the irrational place of heat supply, for reducing energy consumption provides foundation.
Power:
Integraph calculates power according to supply and return water temperature, flow and enthalpy, comprehensive test instrument is readout power data from integraph regularly, calculate a day peak power, and store, regularly be sent to background computer by the GPRS module with a power and a day peak power every day.
The power data that the energy-saving analysis unit is uploaded according to comprehensive test instrument, form the change curve of power every day, simultaneously according to day peak power calculate the maximum heat consumption (w/m2) of unit area, to judge with thermal unit power consumption situation whether meet corresponding energy conservation standard standard, for reducing energy consumption provides foundation.
System's operation temperature difference is 3～5 ℃ as shown in Figure 6, less with respect to the design temperature difference (general 10 ℃) the actual motion temperature difference, the data recording time is February 1, outdoor temperature is 3～-8 ℃, near design temperature (9 ℃), inferring thus has a narrow range of temperature is not that load reduces reason, and mainly is that system's water pump configuration is excessive, flow is bigger, and it is less to cause moving the temperature difference.The operation result of the big little temperature difference of flow is that heat supply induction system energy consumption increases;
The difference variation scope is bigger, and Changing Pattern is consistent with the variation of Fig. 7 thermal power, and illustrative system is a constant flow water system, and system energy consumption is bigger during for operation at part load;
If take unsteady flow amount control conservation measures, change the temperature difference variation tendency can be used as the reference frame of flow control range of adjustment.
(4) invention can be carried out the monitoring analysis of temperature correlation data, and is specific as follows:
Temperature is undertaken gathering every 15 minutes by the carrier acquisition device that is inserted on the socket, at inner carrier communication module and the temperature sensor real-time data communication realized of carrier acquisition device, communication mode by low-voltage power carrier, by power line transmission to the carrier wave concentrator, the carrier wave concentrator sends temperature to comprehensive test instrument by the RS485 line again, comprehensive test instrument is reading temperature data from the carrier wave concentrator regularly, and store, the same day, temperature data carried out the temperature extremal statistics through the statistical module of comprehensive test instrument, count maximum on the same day, the minimum temperature value, regularly be sent to background computer by the GPRS module with a temperature and a day peak temperature every day.
Temperature analysis:
Be combined in wire loop border temperature monitoring technology, then can be energy-conservation examination stronger monitoring means is provided, the energy consumption efficiency of user's heating, refrigeration is estimated on objective science ground more.Analyze with air conditioning electricity summer, and analyze with heating system winter, more effective discovery energy consumption problem, and solve.
I. the indoor temperature in summer on average increases by 1 degree, and power consumption will reduce 10%.Save electric energy: idle call electric weight * 10%;
Ii. the indoor temperature in winter on average reduces by 1 degree, and heat consumption will reduce 4%, saves heat energy: heating caloric * 4%;
(5) invention can be carried out the monitoring analysis of water, gas phase pass data, and is specific as follows:
On user's water supply, tracheae line, water meter, gas meter are installed, gather water consumption, gas consumption in real time, water meter, gas meter adopt the RS485 line to be connected with comprehensive test instrument, by comprehensive test instrument real time polling water meter, gas meter recorded data (promptly getting the data of table stored), per hour get preceding 3 minutes mean value and write down (promptly being stored in the data storage cell) as this hour data, or water consumption, the gas consumption of adding up the same day by comprehensive test instrument data statistics unit, or be unit statistics extreme value record with the day;
Morning every day (or other non-GPRS network peak periods, also can be) according to setting other times, disposable the proxima luce (prox. luc) recorded data of being stored in the comprehensive test instrument is sent to background computer by GPRS, Internet network, and deposits in the data storage cell.
The energy-saving analysis unit 33 of background computer 3 is by its analysis-by-synthesis module 334 among the present invention, the data that collect are carried out analysis-by-synthesis, such as analysis: comprehensive distribution system, the HVAC system, the related electrical parameters of temperature monitoring system, thermal parameter and temperature parameter, by to the cooling equipments such as central air conditioning in the distribution system, heating equipments such as the direct combustion machine in the HVAC system, architectural environment around temperature in the temperature monitoring system and the temperature survey point carries out mathematical modeling, on-line real time monitoring by indoor temperature, by the DDC automatic control system, to reach the purpose of regulating indoor temperature.
1, regulates the aperture of hot and cold water valve;
2, regulate the aperture of new wind, return air and exhaust valve, change new wind/return air ratio.
Concrete principle is as follows: (as shown in Figure 3)
On-the-spot DDC (PLC) control system as shown in Figure 3, DI represents the digital quantity input among the figure, DO represents digital quantity output, AI represents the analog quantity input, AO represents analog quantity output.In automatic control system, actuator is accepted the control signal of controller output, and converts straight-line displacement or angular displacement to, changes the actual internal area of variable valve, with the material or the energy of control inflow or outflow controlled process, thus the automatic control of implementation procedure parameter.Actuator mainly contains following two kinds:
(1) air-valve actuator.Be used to control the air-valve that is installed on new wind, return air inlet, both can have carried out switch control, also can carry out aperture control.Actuator is provided with universal chuck, can directly be clamped on the driving shaft of air-valve, is provided with the hand-reset button, but manual adjustments when meeting fault.Can select the actuator of different moments of torsion according to the size of airduct xsect.
(2) aqueduct valve actuator.With the supporting use of valve, two kinds of switching regulator and adjustable types are arranged.The general bore of switching regulator is big, is used to control the opening and closing of each system process pipeline, the switching between various operating mode etc. in cold and hot station; Adjustable type is mainly used in Control Flow, in the air-conditioning unit, according to the desired temperature control circling water flow rate of controller and the flow of steam humidification, makes temperature maintenance in setting value.
Because adopt above FEEDBACK CONTROL, the present invention can realize:
In heating season, according to indoor temperature, comprehensive test instrument is regulated the return water temperature of control heating system automatically, guarantees that indoor temperature is in reasonable range;
In summer, according to indoor temperature, comprehensive test instrument is controlled the central air-conditioning system valve of blowing automatically in each room, guarantees that indoor temperature is in reasonable range.
Use the present invention to carry out the meaning of energy-saving monitoring:
By to monitor the phenomenon of the energy that can effectively cut the waste with the energy situation, realize preliminary behavior energy saving; By the essential intension under the mining data presentation, and finish reducing energy consumption, realize technical energy saving by technological means.
(1) dynamics that tightens control
By energy-saving monitoring system, can strengthen the monitoring of consumption information, strengthen the information Control dynamics of energy-conservation supervision department, deepen the level and the dynamics of energy-conservation supervision, have laid a good foundation with environment protecting for social total is energy-conservation.
(2) strengthen with realizing
By energy-saving monitoring system, strengthened the awareness of saving energy of energy unit, unit can rectify and improve according to the diagnosis of energy saving and the safety assessment professional comment of system, and guiding is also strengthened energy-saving and cost-reducing general mood of whole society and leaders' at different levels attention.
(3) provide scientific basis
By energy-saving monitoring system, for relevant energy-conservation Study on standards with supervise the implementation of condition created and basis, for the law enforcement of energy conservation provides foundation objective, science.
Claims (15)
1. energy-saving monitoring system, the background computer that includes a plurality of data collectors, the comprehensive test instrument that is connected with data collector and be connected with comprehensive test instrument; It is characterized in that: described data collector includes electric power data acquisition device, heat energy data collector, ambient temperature data harvester, water data collector and rock gas data collector, and is connected by bus between data collector and the comprehensive test instrument; Described comprehensive test instrument includes CPU element and the data storage cell that is connected with CPU element, data statistics unit, data computation unit, Bus Interface Unit, remote data transmission unit; Described background computer comprises that data copy and accept unit, data storage cell, energy-saving analysis unit, it is copied and accepted the unit by data and adopts the remote transmission means to be connected with the remote data transmission unit of comprehensive test instrument, and described energy-saving analysis unit comprises real-time monitoring modular, energy-conservation statistical module, energy-saving analysis module, analysis-by-synthesis module and security alarm module.
2. energy-saving monitoring system according to claim 1 is characterized in that: described Bus Interface Unit is RS232 module, RS485 module or M-BUS module.
3. energy-saving monitoring system according to claim 2 is characterized in that: described remote data transmission unit is a kind of in GPRS communication module, infrared communication module, bluetooth communication module or the ethernet communication module.
4. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: described electric power data acquisition device is a multifunctional electric energy meter, magnitude of voltage in its Acquisition Circuit and current value; Described heat energy data collector is flowmeter and thermometer, and it gathers the supply and return water temperature and the flow of hot duct; Described water data collector is a water meter, and it gathers the water consumption of water pipeline; Described rock gas data collector is natural gas meter, and it gathers the gas consumption of gas pipeline.
5. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: described ambient temperature data harvester is the carrier acquisition device, its communication mode by low-voltage power carrier by line of electric force with data transmission to the carrier wave concentrator, the carrier wave concentrator sends data to comprehensive test instrument by bus again.
6. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: energy consumption, extreme value that the data that described data statistics unit collects each data collector are added up every day by power consumption type and period, statistics failure logging and time of origin thereof, described data computation unit calculates by mathematical model the data that each data collector collects, and calculates the energy consumption statistic data; The data that data that described data statistics unit counts on and data computation unit calculate are stored in data storage cell, and send these data to background computer by the remote data transmission unit according to the default time interval.
7. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: described comprehensive test instrument also includes a data acquisition unit, and it is connected with described CPU element.
8. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: described background computer is the B/S structure, and client is exempted to install, and all users that can insert the internet can both find data in the extent of competence by Internet.
9. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: the energy-conservation statistical module of described energy-saving analysis unit, can be by the energy consumption and the time in energy consumption type and period statistics day, the moon, season, year, and the number percent of each energy consumption type, day part energy consumption; Statistics shows with the form of figure and statistical report form.
10. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: the energy-saving analysis module of described energy-saving analysis unit, utilize the science algorithm, calculate the energy input of each energy kind that slatterns, the energy input that can save, finish energy saving calculation.
11., it is characterized in that according to claim 1 or 2 or 3 described energy-saving monitoring systems: the analysis-by-synthesis module of described energy-saving analysis unit, synthetical collection to associated electrical force data, heat energy data and temperature data carry out analysis-by-synthesis; By the architectural environment around heating equipment, indoor and outdoor temperature and the temperature survey points such as direct combustion machine in cooling equipments such as the central air conditioning in the distribution system, the HVAC system is carried out mathematical modeling, by the data comparative analysis, data in conjunction with after parameter that collects and the statistical study analyze energy-saving potential.
12. energy-saving monitoring system according to claim 11, it is characterized in that: through the result of described analysis-by-synthesis module analysis, copy and accept the unit and the remote data transmission unit feeds back to comprehensive test instrument by data, comprehensive test instrument links to each other with corresponding D DC (PLC) field controller by fieldbus again, actuator is accepted the control signal of field controller output, and convert straight-line displacement or angular displacement to, change the actual internal area of variable valve, with the material or the energy of control inflow or outflow controlled process, thus the automatic control of implementation procedure parameter.
13. energy-saving monitoring system according to claim 12 is characterized in that: described actuator mainly contains air-valve actuator and aqueduct valve actuator.
14. according to claim 1 or 2 or 3 described energy-saving monitoring systems, it is characterized in that: the security alarm module of described energy-saving analysis unit, by writing down the extreme value in relevant energy consumption parameter day of each energy consumption type, moon, season, year, judge that these extreme values are whether in safe range; If the situation that a certain parameter exceeds standard, then can be in logout by instant recording, and report to the police automatically by system.
15., it is characterized in that according to claim 1 or 2 or 3 described energy-saving monitoring systems: the real-time monitoring modular of described energy-saving analysis unit, can real-time monitor each energy consumption parameter, grasp user's status of energy consumption immediately.
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