CN104633765A - Energy-conservation control system and method - Google Patents
Energy-conservation control system and method Download PDFInfo
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- CN104633765A CN104633765A CN201510060584.6A CN201510060584A CN104633765A CN 104633765 A CN104633765 A CN 104633765A CN 201510060584 A CN201510060584 A CN 201510060584A CN 104633765 A CN104633765 A CN 104633765A
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Abstract
The invention provides an energy-conservation control system used for performing energy-conservation control on a heat source system. The energy-conservation control system a collecting module, a calculating module and a control module, wherein the collecting module is used for collecting heat supplying area, daily average weather temperature and the daily consumption of energy at predetermined daily average weather temperature; the calculating module is used for acquiring the daily average energy consumption per ten thousand square meters of the energy at the predetermined daily average weather temperature according to the daily consumption of the energy, and converting the daily average energy consumption of the energy into the daily consumption of standard coal; the control module is used for comparing the daily consumption of the standard coal in a statistics report period with the daily consumption of the standard coal in a base period, and if the difference between the daily consumption of the standard coal in the statistics report period and the daily consumption of the standard coal in the statistics report period is larger than a predetermined value, the heat source system is detected and regulated.
Description
Technical field
The present invention relates to heating energy-saving technology, improve the amount of energy saving of heat source system and the energy-saving control system of fractional energy savings and energy-saving control method in particular to a kind of.
Background technology
" energy-saving and emission-reduction " 12 " planning ", require to improve efficiency of energy utilization, decreasing pollution thing discharges, guarantee that realizing energy consumption per unit declined 16% by 2015 than 2010, COD, sulfur dioxide (SO2) emissions total amount reduce 8%, and ammonia nitrogen, discharged nitrous oxides total amount reduce by the restrictive target of 10%.
Tradition heating industry ubiquity amount of energy saving and fractional energy savings data acquisition difficulty, inaccurate problem.Such as, data acquisition and the processing method of amount of energy saving fractional energy savings appraisal procedure are not accurate enough, there is error.Especially, by the impact that annual outdoor temperature changes, traditional amount of energy saving fractional energy savings appraisal procedure does not consider that this ambient temperature changes the impact caused, and causes amount of energy saving fractional energy savings data inaccurate, have impact on energy conservation, energy auditing, energy evaluation work.In addition, amount of energy saving fractional energy savings assessment also do not consider operating condition, some Heating Period mean temperatures are high, and some Heating Period mean temperatures are low, the amount of energy saving calculated by conventional method and fractional energy savings inaccurate.
There is delayed problem in the energy-saving control method of tradition amount of energy saving and fractional energy savings.After tradition heating industry Heating Period terminates, power consumption data just come out, and are difficult to realize implementing energy detecting, energy conservation every day, energy control work every day every day, for this reason, can not analyze energy waste and energy saving problem every day, manage delayed.
Disclosed in described background technology part, above-mentioned information is only for strengthening the understanding to background of the present invention, and therefore it can comprise the information do not formed prior art known to persons of ordinary skill in the art.
Summary of the invention
Therefore, an object of the present invention is to provide and a kind ofly improves the amount of energy saving of heat source system and the energy-saving control system of fractional energy savings.Another object is to provide a kind of energy-saving control method.
Other objects of the present invention, characteristic and advantage become obvious by by detailed description below, or the acquistion partially by practice of the present invention.
According to one side of the present disclosure, a kind of energy-saving control system is provided, for carrying out Energy Saving Control to heat source system, described system comprises: acquisition module, for acquiring heat supply area, per day meteorological temperature and the day's expenditure of the energy at predetermined per day meteorological temperature; Computing module, for according to the described day's expenditure that can come from the energy at described predetermined per day meteorological temperature, obtains the per day energy input of the described unit area of heat-supply service that can come from described predetermined per day meteorological temperature; For the per day energy input of the described unit area of heat-supply service that can come from described predetermined per day meteorological temperature is amounted to into standard the consumption of coal; Control module, for the day's expenditure of the day's expenditure of the standard coal of comparative statistics report period and the standard coal in base period, if the difference of the day's expenditure of the standard coal of described statistical report phase and the day's expenditure of the standard coal in described base period is greater than predetermined value, then described heat source system is detected and regulate and control.
According to an example embodiment, described method also comprises: reject module, for more described per day energy input compared with design space-heating load index, if described per day energy input is greater than described design space-heating load index, then delete described per day energy input data.
According to an example embodiment, the described energy comprise coal, combustion gas, fuel oil, electricity, water, diesel oil one of them.
According to an example embodiment, described control module also respectively by described coal, combustion gas, fuel oil, electricity, water and diesel oil in the standard coal of statistical report phase day total flow with day of the standard coal in base period compared with total flow, if the day total flow of the standard coal of described statistical report phase is greater than the day total flow of the standard coal in described base period, then described heat source system is detected and regulate and control.
According to another aspect of the present disclosure, a kind of energy-saving control method is provided, for carrying out Energy Saving Control to heat source system, it is characterized in that, described method comprises: acquiring heat supply area, per day meteorological temperature and the day's expenditure of the energy at predetermined per day meteorological temperature; According to predetermined per day meteorological temperature and at predetermined per day meteorological temperature the day's expenditure of the energy and described area of heat-supply service, obtain coming from the per day energy input of the unit area of heat-supply service at described predetermined per day meteorological temperature; And the per day energy input of the described unit area of heat-supply service that can come from described predetermined per day meteorological temperature is amounted to into standard the consumption of coal; The day's expenditure of the day's expenditure of the standard coal of comparative statistics report period and the standard coal in base period, if the difference of the day's expenditure of the standard coal of described statistical report phase and the day's expenditure of the standard coal in described base period is greater than predetermined value, then described heat source system is detected and regulate and control.
According to an example embodiment, described method also comprises: more described per day energy input and design space-heating load index, if described per day energy input is greater than described Heating Design maximum heating load index, then deletes described per day energy input data.
According to an example embodiment, the described energy comprise coal, combustion gas, fuel oil, electricity, water, diesel oil one of them.
According to an example embodiment, also comprise: respectively by described coal, combustion gas, fuel oil, electricity, water and diesel oil in the standard coal of statistical report phase day total flow with day of the standard coal in base period compared with total flow, if the day total flow of the standard coal of described statistical report phase is greater than the day total flow of the standard coal in described base period, then described heat source system is detected and regulate and control.
According to technical scheme of the present invention, consider the impact that annual outdoor temperature changes, and then can regulate and control heat source system more accurately, and heating industry energy conservation, energy auditing, energy evaluation work data acquisition accuracy can be provided; Can data acquisition and assessment be carried out at Heating Period, management can be reached in time, obtain energy consumption data in time and regulate and control, reducing effect of energy waste.
Accompanying drawing explanation
To those skilled in the art, by detailed description to the example embodiment be shown in each accompanying drawing below reading, above-mentioned and further feature of the present invention and advantage will become more obvious.
Fig. 1 is the energy-saving control method according to the present invention one example embodiment.
Fig. 2 is the energy-saving control system according to the present invention one example embodiment.
Example embodiment
More fully embodiment is described referring now to accompanying drawing.But embodiment can be implemented in a variety of forms, and should not be understood to be limited to embodiment set forth herein; On the contrary, these embodiments are provided to make the present invention comprehensively with complete, and the design of embodiment will be conveyed to those skilled in the art all sidedly.
The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the present invention.
Term in this description is described below:
1, Coal-fired capacity: the coal-fired quantity of boiler consumption per hour, unit: ton/hour (T/h), under normal circumstances, 100T boiler coal consumption per hour is at about 13 tons.
2, standard coal: also known as coal equivalent, has unified calorific value standard.China specifies that the calorific value of every kilogram of standard coal is 7000 kilocalories.The energy of different cultivars, different content is converted into by calorific values different separately the standard coal that every kilogram of calorific value is 7000 kilocalories.1kg standard coal heating=7000cal (kilocalorie)=7000 ÷ 861 kilocalories/KW=8.13KW.As illustrated in chart 1, the accurate coal measures number of the signature of amounting to into standard coal consumption of the various energy is described.
Table 1
3, amount of energy saving: meet needs on an equal basis or reach identical object condition under, the quantity that energy resource consumption reduces.With equation expression be: △ E=EB-E.
Wherein: △ E---amount of energy saving, unit is ton standard coal (tce);
EB---benchmark energy consumption, unit is ton standard coal (tce);
E---statistical report phase energy consumption, unit is ton standard coal (tce).
4, fractional energy savings: the statistical report phase, than the specific energy consumption reduced rate in base period, represents with percentage.With equation expression be: α=△ E/EB=△ E/ (E+ △ E).
Wherein: △ E---amount of energy saving, unit is ton standard coal (tce);
EB---benchmark energy consumption, unit is ton standard coal (tce);
E---actual energy consumption, unit is ton standard coal (tce).
5, energy consumption average: the energy consumption data at same meteorological temperature is taken the mean.
6, data are rejected: rejected by the energy consumption data exceeding Heating Design maximum heating load, claim data to reject.
The energy-saving control method of Fig. 1 and Fig. 2 difference the present invention one example embodiment and system, can be used for carrying out Energy Saving Control to heat source system, described heat source system is such as fuel system, gas burning system or coal burning system etc.
Below by with the amount of energy saving of coal and fractional energy savings data instance, the amount of energy saving of the improved heat source system of the embodiment of the present invention and the energy-saving control system of fractional energy savings and method are described.But it should be noted that, the present invention is except can be used for amount of energy saving according to coal and fractional energy savings data, outside heat source system is detected and regulating and controlling, also can be used for respectively according to combustion gas, fuel oil, electricity, water, the amount of energy saving of diesel oil etc. and fractional energy savings data, correspondingly detect heat source system and regulate and control, to carry out Energy Saving Control to heat source system.The present invention is the energy of embodiment is the energy of broad sense, not only comprises coal, combustion gas, fuel oil, electricity etc., also comprises water.Further, by by coal, combustion gas, fuel oil, electricity, water, after other energy such as diesel oil amount to into standard coal, also can calculate according to coal, combustion gas, fuel oil, electricity, water, the synthesis energy saving of other energy such as diesel oil and synthesis energy saving rate data, to carry out whole energy control to heat source system.
As shown in Figure 1, the energy-saving control method of the embodiment of the present invention, comprises the following steps:
S110: the data such as the average daily consumed amt of the coal at the average meteorological temperature of the average meteorological temperature of acquiring heat supply area S, every day and each sky.
In one embodiment, such as the day's expenditure data with the coal in each sky of identical average meteorological temperature in month are taken the mean, obtain the average daily consumed amt of coal at predetermined per day meteorological temperature, this predetermined per day meteorological temperature is the average meteorological temperature in each sky, but the present invention is not as limit, can also be limited with a season, be taken at the average daily consumed amt of coal at predetermined per day meteorological temperature.
S120: the average daily consumed amt and the area of heat-supply service S that are pursuant to coal at predetermined per day meteorological temperature, obtains the per day energy input of ten thousand square meters of coal at described predetermined per day meteorological temperature; And the per day energy input of ten thousand square meters of coal at described predetermined per day meteorological temperature is amounted to into standard the consumption of coal.
S130: more described per day energy input and design space-heating load, if described per day energy input is greater than described Heating Design maximum heating load, then deletes described per day energy input data; Otherwise, do not delete.
S140: the day's expenditure of the day's expenditure of the standard coal of comparative statistics report period and the standard coal in base period, if the difference of the day's expenditure of the standard coal of described statistical report phase and the day's expenditure of the standard coal in described base period is greater than predetermined value, then described heat source system is detected and regulate and control.
Calculate the average consumption of coal at predetermined average meteorological temperature, the per day energy input of the unit area of heat-supply service of coal at described predetermined per day meteorological temperature, and the average heat production of the energy of coal, are all the obtaining value methods based on the data average in above-mentioned term 4.
By average daily consumed amt and the coal average heat production of coal, can obtain the per day energy input of ten thousand square meters of coal at described predetermined per day meteorological temperature, circular is based on following formula:
Q＝Q
net.ad×G (1)；
Wherein, Q is described per day energy input; G is the described average daily consumed amt that can come from predetermined average meteorological temperature; Q
net.adfor the described energy ten thousand square meter caloric value.In one embodiment, this average daily consumed amt G such as by the weight or volume of consumption coal.
According to the disclosure one embodiment, the circular of the per day energy input Q of the embodiment of the present invention can also based on following formula:
Q
m＝q×A (2)；
Q＝Q
m×(T
n-T'
w)/(T
n-T
w) (3)。
Wherein, Q is described per day energy input; T
nfor indoor heating temperature (DEG C), as being 18 DEG C (national standards); T
w 'for heat supply outdoor weather mean temperature (DEG C); T
wfor maximum heating load design temperature (DEG C), as being-20 DEG C (district heating design code values); Q is design heating load, W/m
2h; Q
mbe ten thousand square meter design heating loads; A is area of heat-supply service, area of heat-supply service A=1 ten thousand square meter.
In an example embodiment, the average daily consumed amt of the coal at the average meteorological temperature in each sky, specifically can see table shown in 2.
Table 2
Base period coal consumption statistical report phase coal consumption
In table 2, the number of days of base period under meteorological mean temperature-15 degrees Celsius is 0 day, and statistical report is 1 day aspire to the number of days under this meteorological mean temperature, then the average daily consumed amt of the coal under this meteorological mean temperature can not be used to assessment amount of energy saving and fractional energy savings.And base period, statistical report are respectively 2 days and 1 day aspire to the number of days under meteorological mean temperature-14 degrees Celsius, then the information such as combustion the consumption of coal, caloric value and area of heat-supply service under this meteorological mean temperature will be used to assessment amount of energy saving and fractional energy savings.
Recorded data in table 2, for average meteorological temperature be-15.5 degrees Celsius to-9.5 degrees Celsius under.But the present invention is not as limit, according to embody rule situation, average meteorological temperature can also be gathered such as-20 degrees Celsius to data such as the area of heat-supply service A under 20 degrees Celsius, coal-fired consumption, coal burning caloricities, and can arrange every 0.5 degree Celsius of acquisition/calculating coal average consumption data.
Design space-heating load S in step S130 obtains based on following formulae discovery:
Q
max＝q
max×A；
S＝Q
max×(T
n-t'
w)/(T
n-T
w)。
Wherein, Q
maxfor the maximum ten thousand square meter thermic loads of heat supply network, A is area of heat-supply service, q
maxfor design space-heating load; T
nfor indoor heating temperature (DEG C), as being 18 DEG C (national standards); t
w 'for Heating Design temperature (DEG C), such as, be-20 DEG C ,-25 DEG C ,-30 DEG C; T
wfor maximum heating load design temperature (DEG C), as being-20 DEG C (district heating design code values).
In Evaluation on Energy Saving step S140, according to the day's expenditure of standard coal of following formula comparison statistical report phase and the day's expenditure data of the standard coal in base period:
△E＝E－EB；
α＝△E/EB＝△E/(E+△E)。
Wherein: △ E---coal amount of energy saving, unit is ton standard coal (tce); The day's expenditure of the standard coal in EB---base period, unit is ton standard coal (tce); E---the day's expenditure of the standard coal of statistical report phase, unit is ton standard coal (tce).In the present embodiment, standard the consumption of coal of being amounted to by the per day energy input of the unit area of heat-supply service of coal at described predetermined per day meteorological temperature of EB and/or E.α---coal fractional energy savings, unit is ton standard coal (tce).
If the difference of the day's expenditure of the standard coal of described statistical report phase and the day's expenditure of the standard coal in described base period is greater than predetermined value, also namely △ E is greater than predetermined value, then detect described heat source system and regulate and control.In one embodiment, this predetermined value can be 0,1,10 etc., but this predetermined value also can be arranged according to embody rule situation, and the present invention is not as limit.
In one embodiment, α is greater than predetermined value, then detect described heat source system and regulate and control.In one embodiment, this predetermined value is 0,1,2 etc., but this predetermined value also can be arranged according to embody rule situation, and the present invention is not as limit.
In one embodiment, such as, can detect the thermic load of heat source system, and the thermic load needed for reality, adjust the Coal-fired capacity of this heat source system.In another embodiment, also can Coal-fired capacity needed for the power of each electrical equipment of heat source system and this heat source system, adjust the pump operating cycle time of this heat source system, reductor running time, air blast running time, air-introduced machine running time, adjustment small pump running time, slag remover running time, belt feeder running time and coal hoist running time.According to a detailed description of the invention, according to the power of boiler in heat source system and required thermic load, the number of units of this steam generator system boiler operation can also be determined.
These are only the some embodiments detecting described heat source system and regulate and control, the present invention is not as limit.
In addition, by the day's expenditure of coal, combustion gas, fuel oil, electricity, water, diesel oil being converted into the day's expenditure of standard coal, and by coal, combustion gas, fuel oil, electricity, water, diesel oil at least wherein two same meteorological mean temperature under the day's expenditure of standard coal be added, can also obtain described coal, combustion gas, fuel oil, electricity, water and/or diesel oil at least wherein two in the day total flow of the standard coal of statistical report phase.By the standard coal of statistical report phase day total flow with day of the standard coal in base period compared with total flow, if the day total flow of the standard coal of described statistical report phase is greater than the day total flow of the standard coal in described base period, then described heat source system is detected and regulate and control.The mode detected described heat source system and regulate and control is similar to the above, does not repeat them here.
As shown in Figure 2, the amount of energy saving of the embodiment of the present invention and fractional energy savings evaluating system comprise acquisition module 21, computing module 22, control module 23 and reject module 24.
Wherein, acquisition module 21, for the data such as day's expenditure, caloric value of the coal at the average meteorological temperature of average meteorological temperature and each sky of acquiring heat supply area, every day.
Computing module 22, for the day's expenditure according to coal, obtains the per day energy input of ten thousand square meters of coal at described predetermined per day meteorological temperature; For the per day energy input of coal is amounted to into standard the consumption of coal; .
Control module 23, for the day's expenditure of the day's expenditure of the standard coal of comparative statistics report period and the standard coal in base period, if the difference of the day's expenditure of the standard coal of described statistical report phase and the day's expenditure of the standard coal in described base period is greater than predetermined value, then described heat source system is detected and regulate and control.
Reject module 24, for more described per day energy input compared with design space-heating load index, if described per day energy input is greater than described design space-heating load index, then delete described per day energy input data; Otherwise, do not delete.
According to the disclosure one embodiment, the control module 23 of the embodiment of the present invention also respectively by coal, combustion gas, fuel oil, electricity, water or diesel oil in the standard coal of statistical report phase day total flow with day of the standard coal in base period compared with total flow, if the day total flow of the standard coal of described statistical report phase is greater than the day total flow of the standard coal in described base period, then described heat source system is detected and regulate and control.
The specific implementation that above-mentioned data acquisition, data calculating, control and data are rejected, in above recording, has not repeated them here.
Although embodiments of the invention are described above; but those embodiments are not used for limiting the present invention; those skilled in the art can impose change according to the content expressed or imply of the present invention to technical characteristic of the present invention; all this kind changes the patent protection category that all may belong to sought by the present invention; in other words, scope of patent protection of the present invention must be as the criterion depending on the claim person of defining of this description.
Claims (10)
1. an energy-saving control system, for carrying out Energy Saving Control to heat source system, is characterized in that, described system comprises:
Acquisition module, for acquiring heat supply area, per day meteorological temperature and the average daily consumed amt of the energy at predetermined per day meteorological temperature;
Computing module, for the described average daily consumed amt according to the described energy, obtains the per day energy input of described ten thousand square meters that can come from described predetermined per day meteorological temperature; For the per day energy input of the described energy being amounted to into the day's expenditure of standard coal;
Control module, for the day's expenditure of the day's expenditure of the standard coal of comparative statistics report period and the standard coal in base period, if the difference of the day's expenditure of the standard coal of described statistical report phase and the day's expenditure of the standard coal in described base period is greater than predetermined value, then described heat source system is detected and regulate and control.
2. the system as claimed in claim 1, is characterized in that, the calculating of the per day energy input of described ten thousand square meters that can come from described predetermined per day meteorological temperature is based on formula:
Q＝Q
net.ad×G；
Wherein, Q is described per day energy input; G is the described average daily consumed amt that can come from predetermined average meteorological temperature; Q
net.adfor the described energy ten thousand square meter caloric value.
3. the system as claimed in claim 1, is characterized in that, described method also comprises:
Reject module, for more described per day energy input compared with design space-heating load, if described per day energy input is greater than described design space-heating load, then delete described per day energy input data.
4. system as claimed in claim 3, is characterized in that, the described energy comprise coal, combustion gas, fuel oil, electricity, water, diesel oil one of them.
5. system as claimed in claim 4, it is characterized in that, described control module also respectively by described coal, combustion gas, fuel oil, electricity, water and diesel oil in the standard coal of statistical report phase day total flow with day of the standard coal in base period compared with total flow, if the day total flow of the standard coal of described statistical report phase is greater than the day total flow of the standard coal in described base period, then described heat source system is detected and regulate and control.
6. an energy-saving control method, for carrying out Energy Saving Control to heat source system, is characterized in that, described method comprises:
Acquiring heat supply area, per day meteorological temperature and the average daily consumed amt of the energy at predetermined per day meteorological temperature;
According to described average daily consumed amt and the described area of heat-supply service of the described energy, obtain coming from the per day energy input of ten thousand square meters at described predetermined per day meteorological temperature; And by the described energy per day energy input amount to into the day's expenditure of standard coal;
The day's expenditure of the day's expenditure of the standard coal of comparative statistics report period and the standard coal in base period, if the difference of the day's expenditure of the standard coal of described statistical report phase and the day's expenditure of the standard coal in described base period is greater than predetermined value, then described heat source system is detected and regulate and control.
7. the method for claim 1, is characterized in that, the calculating of the per day energy input of described ten thousand square meters that can come from described predetermined per day meteorological temperature is based on formula:
Q＝Q
net.ad×G；
Wherein, Q is described per day energy input; G is the described average daily consumed amt that can come from predetermined average meteorological temperature; Q
net.adfor the described energy ten thousand square meter caloric value.
8. the method for claim 1, is characterized in that, described method also comprises:
More described per day energy input and design space-heating load, if described per day energy input is greater than described Heating Design maximum heating load, then delete described per day energy input data.
9. method as claimed in claim 8, is characterized in that, the described energy comprise coal, combustion gas, fuel oil, electricity, water, diesel oil one of them.
10. method as claimed in claim 9, it is characterized in that, also comprise: respectively by described coal, combustion gas, fuel oil, electricity, water and diesel oil in the standard coal of statistical report phase day total flow with day of the standard coal in base period compared with total flow, if the day total flow of the standard coal of described statistical report phase is greater than the day total flow of the standard coal in described base period, then described heat source system is detected and regulate and control.
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