CN107699649B - Blast furnace cooling stave recirculating cooling water system power-economizing method and device - Google Patents
Blast furnace cooling stave recirculating cooling water system power-economizing method and device Download PDFInfo
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- CN107699649B CN107699649B CN201710888166.5A CN201710888166A CN107699649B CN 107699649 B CN107699649 B CN 107699649B CN 201710888166 A CN201710888166 A CN 201710888166A CN 107699649 B CN107699649 B CN 107699649B
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Abstract
The invention discloses a kind of blast furnace cooling stave recirculating cooling water system power-economizing method and devices, by obtaining the Historical Monitoring data when operation of blast furnace cooling stave recirculating cooling water system, wherein, Historical Monitoring data include each process operation parameter and the hot status index of high-temperature wall surface；According to the Historical Monitoring data of acquisition, the correlation of each process operation parameter and the hot status index of high-temperature wall surface is counted, obtains each process operation parameter to the influence degree of the hot status index of high-temperature wall surface；The configuration combination for updating process operation parameter reinforces its supply degree for influencing more strong process operation parameter more by a small margin；For influencing weaker process operation parameter, its supply degree is reduced by a relatively large margin to save blast furnace cooling stave recirculating cooling water system energy consumption.Blast furnace cooling stave recirculating cooling water system power-economizing method and device provided by the invention, high degree of automation, energy-saving effect are good.
Description
Technical field
The present invention relates to industrial circulating water system energy-saving fields, particularly, are related to a kind of blast furnace cooling stave recirculated cooling water
Energy saving of system method and apparatus.
Background technique
Blast furnace ironmaking is highly important process procedure in steel and iron industry, the safety and stability level and energy of this process operation
Consumption is the important embodiment of iron and steel enterprise's production run ability.The circulation of blast furnace is mainly used for cooling blast furnace furnace wall, is dimension
Protect blast furnace safety, stabilization and the indispensable component part of economical operation.Blast furnace cooling stave recirculating cooling water system is by height
The supply of furnace furnace wall has the recirculated water of certain temperature and flow, to take away heat extra in blast furnace production process, remains reasonable
Furnace wall temperature (i.e. hot situation), and then furnace wall is protected not destroyed by the high temperature inside blast furnace.Blast furnace cooling stave circulating cooling
The power consumption of water system mainly includes water pump power consumption and blower fan of cooling tower power consumption this two large divisions, the former, which is mainly used for providing, follows
Flow required for ring water system, the latter are mainly used for refrigeration to maintain the suitable temperature of circulation water of blast furnace.Therefore, flow and into
The circulating water temperature for entering blast furnace is the technological operation variable for restricting the hot situation of blast furnace, and the supply degree of the two then respectively corresponds dampening
The power consumption of pump and blower.Due to the complexity of blast furnace furnace wall heat transfer process and the otherness of individual, well known technological means fails
The energy-efficient better method of blast furnace cooling stave recirculating cooling water system is pointedly provided.
Therefore, the optimal energy-saving effect for how pointedly realizing blast furnace cooling stave circulation is one and urgently solves
Certainly the technical issues of.
Summary of the invention
The present invention provides a kind of blast furnace cooling stave recirculating cooling water system power-economizing method and devices, by blast furnace furnace wall
Temperature and the historical data of Process of Water Circulating System operating parameter statistical analysis, it is cooling to solve blast furnace to provide Personalized Ways
The technical problem of wall recirculating cooling water system energy conservation.
According to an aspect of the present invention, a kind of blast furnace cooling stave recirculating cooling water system power-economizing method is provided, is applied to
In blast furnace cooling stave recirculating cooling water system, blast furnace cooling stave recirculating cooling water system includes blast furnace, for storing the cold of cold water
Pond, for the cold water stored in water cooling pond is pumped into the multiple water pumps to exchange heat in blast furnace, be used for blast furnace exchange heat after
Water is cooled down and is returned to multiple cooling towers of water cooling pond, is set in turn between water cooling pond, blast furnace and cooling tower for following
The recirculated cooling water main pipe of ring water conservancy diversion and with multiple cooling towers be correspondingly arranged for send to multiple cooling towers water carry out it is cold
But multiple blowers, blast furnace cooling stave recirculating cooling water system power-economizing method the following steps are included:
Historical Monitoring data when S100, acquisition blast furnace cooling stave recirculating cooling water system operation, wherein Historical Monitoring number
According to including each process operation parameter and the hot status index of high-temperature wall surface；
S200, the Historical Monitoring data according to acquisition, count each process operation parameter and the hot status index of high-temperature wall surface
Correlation, obtain each process operation parameter to the influence degree of the hot status index of high-temperature wall surface；
S300, the configuration combination for updating process operation parameter, for influencing more strong process operation parameter, more slightly
Degree reinforces it and supplies degree；For influencing weaker process operation parameter, its supply degree is reduced by a relatively large margin to save blast furnace
Cooling wall recirculating cooling water system energy consumption.
Further, after step S300, further includes:
S400, step S100~step S300 is repeated, persistently reduces blast furnace cooling stave recirculating cooling water system energy consumption, until
Blast furnace cooling stave recirculating cooling water system is optimal level.
Further, each process operation parameter includes recirculated cooling water main pipe flow and recirculated cooling water main pipe entrance temperature
Degree.
Further, the hot status index of high-temperature wall surface include the temperature maximum of each temperature measuring point of blast furnace wall surface, average value or
Median.
Further, reinforcing its supply degree includes the flow and/or enhancing cooling tower for increasing recirculated cooling water main pipe
Refrigerating capacity；Reducing its supply degree includes the flow for reducing recirculated cooling water main pipe and/or the refrigerating capacity for weakening cooling tower.
Further, the flow for increasing recirculated cooling water main pipe includes the valve opening for increasing water pump, improves necessary electromotor
Revolving speed increases water pump vane diameter, increases the combination that water pump opens one of number of units or various ways；Reduce recirculated cooling water
The flow of main pipe include reduce water pump valve opening, reduce necessary electromotor revolving speed, reduce water pump vane diameter, reduce water pump open
Open the combination of one of number of units or various ways.
Further, the refrigerating capacity for enhancing cooling tower includes improving blower fan of cooling tower revolving speed, improving cooling tower shower water
Spray flow increases the combination that blower opens number of units and adjusting fan blade places one of angle or various ways, to reduce
Into the temperature of the recirculated water of blast furnace；The refrigerating capacity for weakening cooling tower includes reducing blower fan of cooling tower revolving speed, reducing cooling tower
Shower water spray flow reduces the combination that blower opens number of units and adjusting fan blade places one of angle or various ways,
To improve the temperature for the recirculated water for entering blast furnace.
Further, reinforce its supply degree more by a small margin, increased range value control former supply degree 1%~
In 3% control interval；Reduce its supply degree by a relatively large margin, the range value control of reduction former supply degree 2%~
In 10% control interval.
Further, blast furnace cooling stave recirculating cooling water system is optimal level and refers to blast furnace cooling stave recirculated cooling water
System energy consumption value no longer reduces or the hot status index of high-temperature wall surface has reached the critical value range of license.
According to another aspect of the present invention, a kind of blast furnace cooling stave recirculating cooling water system energy saver is also provided, is applied
In blast furnace cooling stave recirculating cooling water system, blast furnace cooling stave recirculating cooling water system includes blast furnace, for storing cold water
Water cooling pond, for the cold water stored in water cooling pond is pumped into the multiple water pumps to exchange heat in blast furnace, be used for blast furnace exchange heat after
Water cooled down and returned to multiple cooling towers of water cooling pond, be set in turn between water cooling pond, blast furnace and cooling tower and be used for
Recycle water conservancy diversion recirculated cooling water main pipe and with multiple cooling towers be correspondingly arranged for send to multiple cooling towers water progress
Cooling multiple blowers, blast furnace cooling stave recirculating cooling water system energy saver include:
Obtain module, for obtaining the Historical Monitoring data when operation of blast furnace cooling stave recirculating cooling water system, wherein go through
History monitoring data include each process operation parameter and the hot status index of high-temperature wall surface；
Statistical module, for the Historical Monitoring data according to acquisition, count each process operation parameter and high-temperature wall surface heat
The correlation of status index obtains each process operation parameter to the influence degree of the hot status index of high-temperature wall surface；
Processing module, the configuration for updating process operation parameter are combined, and are joined for influencing more strong technological operation
Number, reinforces its supply degree more by a small margin；For influencing weaker process operation parameter, reduce by a relatively large margin its supply degree with
Save blast furnace cooling stave recirculating cooling water system energy consumption.
The invention has the following advantages:
Blast furnace cooling stave recirculating cooling water system power-economizing method and device provided by the invention, by obtaining blast furnace cooling stave
Historical Monitoring data when recirculating cooling water system is run；According to the Historical Monitoring data of acquisition, each technological operation ginseng is counted
Several and the hot status index of high-temperature wall surface correlation, obtains influence of each process operation parameter to the hot status index of high-temperature wall surface
Degree；The configuration combination for updating process operation parameter reinforces it for influencing more strong process operation parameter more by a small margin
Supply degree；For influencing weaker process operation parameter, its supply degree is reduced by a relatively large margin and is followed with saving blast furnace cooling stave
Ring cooling water system energy consumption, to obtain the configuration combination for the process operation parameter that low energy consumption.Blast furnace provided by the invention is cooling
Wall recirculating cooling water system power-economizing method and device, high degree of automation, energy-saving effect are good.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow diagram of blast furnace cooling stave recirculating cooling water system power-economizing method preferred embodiment of the present invention；
Fig. 2 is the composition schematic diagram of blast furnace cooling stave recirculating cooling water system；
Fig. 3 is the functional block diagram of blast furnace cooling stave recirculating cooling water system energy saver first preferred embodiment of the present invention；
Fig. 4 is the functional block diagram of second preferred embodiment of blast furnace cooling stave recirculating cooling water system energy saver of the present invention.
Drawing reference numeral explanation:
10, water cooling pond；20, blast furnace；30, cooling tower；40, recirculated cooling water main pipe；50, water pump；60, blower；71, it obtains
Module；72, statistical module；73, processing module；74, energy saving optimizing module.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Figures 1 and 2, the preferred embodiment of the present invention provides a kind of blast furnace cooling stave recirculating cooling water system energy conservation
Method and apparatus are statisticallyd analyze by the historical data to blast furnace furnace wall temperature and Process of Water Circulating System operating parameter, to mention
The technical problem of blast furnace cooling stave recirculating cooling water system energy conservation is solved for Personalized Ways.
According to an aspect of the present invention, a kind of blast furnace cooling stave recirculating cooling water system power-economizing method is provided, is applied to
In blast furnace cooling stave recirculating cooling water system, blast furnace cooling stave recirculating cooling water system includes blast furnace 20, for storing cold water
Water cooling pond 10, for the cold water stored in water cooling pond 10 to be pumped into the multiple water pumps 50 to exchange heat in blast furnace 20, is used for height
Water after furnace 20 exchanges heat is cooled down and is returned to multiple cooling towers 30 of water cooling pond 10, is set in turn in water cooling pond 10, blast furnace
It is used between 20 and cooling tower 30 for recycling the recirculated cooling water main pipe 40 of water conservancy diversion and being correspondingly arranged with multiple cooling towers 30
To the multiple blowers 60 for sending the water to multiple cooling towers 30 to carry out cooling, blast furnace cooling stave recirculating cooling water system power-economizing method packet
Include following steps:
Historical Monitoring data when S100, acquisition blast furnace cooling stave recirculating cooling water system operation, wherein Historical Monitoring number
According to including each process operation parameter and the hot status index of high-temperature wall surface.
Each process operation parameter and the hot status index of wall surface in blast furnace cooling stave recirculating cooling water system are specified, is obtained each
The Historical Monitoring data of process operation parameter and the hot status index of wall surface.Wherein, Historical Monitoring data include each technological operation
Parameter and the hot status index of high-temperature wall surface.Each process operation parameter includes recirculated cooling water main pipe flow and circulating cooling jellyfish
Tube inlet temperature.The hot status index of high-temperature wall surface includes the temperature maximum, average value or median of each temperature measuring point of blast furnace wall surface.
S200, the Historical Monitoring data according to acquisition, count each process operation parameter and the hot status index of high-temperature wall surface
Correlation, obtain each process operation parameter to the influence degree of the hot status index of high-temperature wall surface.
According to the Historical Monitoring data of acquisition, it is related to the hot status index of high-temperature wall surface to count each process operation parameter
Property, and sequentially arranged by the correlation of each process operation parameter and the hot status index of high-temperature wall surface, obtain each technique
Influence degree of the operating parameter to the hot status index of high-temperature wall surface.
S300, the configuration combination for updating process operation parameter, for influencing more strong process operation parameter, more slightly
Degree reinforces it and supplies degree；For influencing weaker process operation parameter, its supply degree is reduced by a relatively large margin to save blast furnace
Cooling wall recirculating cooling water system energy consumption.
The configuration combination for updating process operation parameter adds more by a small margin for influencing more strong process operation parameter
Strong its supplies degree；For influencing weaker process operation parameter, it is cooling to save blast furnace to reduce its supply degree by a relatively large margin
Wall recirculating cooling water system energy consumption.Wherein, reinforcing its supply degree includes increasing flow and/or the enhancing of recirculated cooling water main pipe
The refrigerating capacity of cooling tower；Reducing its supply degree includes reducing the flow and/or decrease cooling tower of recirculated cooling water main pipe
Refrigerating capacity.The flow for increasing recirculated cooling water main pipe includes the valve opening for increasing water pump, improves necessary electromotor revolving speed, increases
Water pump vane diameter increases the combination that water pump opens one of number of units or various ways；Reduce the stream of recirculated cooling water main pipe
Amount is including reducing the valve opening of water pump, reduction necessary electromotor revolving speed, reduction water pump vane diameter, reducing in water pump unlatching number of units
One or more modes combination.Specifically, the refrigerating capacity for enhancing cooling tower includes improving blower fan of cooling tower revolving speed, improving
Cooling tower shower water spray flow increases blower and opens number of units and adjust fan blade and places one of angle or various ways
Combination, to be lowered into the temperature of the recirculated water of blast furnace；Weaken cooling tower refrigerating capacity include reduce blower fan of cooling tower revolving speed,
Cooling tower shower water spray flow is reduced, blower unlatching number of units is reduced and adjusts fan blade and places one of angle or a variety of sides
The combination of formula, to improve the temperature for the recirculated water for entering blast furnace.Reinforce its supply degree, increased range value control more by a small margin
In 1%~3% control interval of former supply degree；Its supply degree is reduced by a relatively large margin, and the range value control of reduction exists
In 2%~10% control interval of former supply degree.
Blast furnace cooling stave recirculating cooling water system power-economizing method provided in this embodiment, by obtaining blast furnace cooling stave circulation
Historical Monitoring data when cooling water system is run；According to the Historical Monitoring data of acquisition, count each process operation parameter and
The correlation of the hot status index of high-temperature wall surface obtains each process operation parameter to the influence journey of the hot status index of high-temperature wall surface
Degree；The configuration combination for updating process operation parameter reinforces its confession for influencing more strong process operation parameter more by a small margin
To degree；For influencing weaker process operation parameter, its supply degree is reduced by a relatively large margin to save blast furnace cooling stave circulation
Cooling water system energy consumption, to obtain the configuration combination for the process operation parameter that low energy consumption.Blast furnace provided in this embodiment is cooling
Wall recirculating cooling water system power-economizing method, high degree of automation, energy-saving effect are good.
Preferably, blast furnace cooling stave recirculating cooling water system power-economizing method provided in this embodiment, after step S300, also
Include:
S400, step S100~step S300 is repeated, persistently reduces blast furnace cooling stave recirculating cooling water system energy consumption, until
Blast furnace cooling stave recirculating cooling water system is optimal level.
The configuration combination for obtaining updated process operation parameter, continues to acquire Historical Monitoring data, to blast furnace cooling stave
Recirculating cooling water system carries out saving optimization, persistently reduces blast furnace cooling stave recirculating cooling water system energy consumption, until blast furnace is cooling
Wall recirculating cooling water system is optimal level.Wherein, blast furnace cooling stave recirculating cooling water system is optimal level and refers to height
Furnace cooling wall recirculating cooling water system power consumption values no longer reduce or the hot status index of the high-temperature wall surface has reached facing for license
Dividing value range.
Blast furnace cooling stave recirculating cooling water system power-economizing method provided in this embodiment persistently reduces blast furnace cooling stave circulation
Cooling water system energy consumption is finally maintaining suitable blast furnace until blast furnace cooling stave recirculating cooling water system is optimal level
Under the premise of hot situation, blast furnace cooling stave recirculating cooling water system is obtained.Blast furnace cooling stave circulating cooling provided in this embodiment
Water system power-economizing method, high degree of automation, energy-saving effect are good.
As shown in figure 3, the present embodiment also provides a kind of blast furnace cooling stave recirculating cooling water system energy saver, it is applied to height
In furnace cooling wall recirculating cooling water system, blast furnace cooling stave recirculating cooling water system includes blast furnace 20, for storing the cold of cold water
Pond 10, for the cold water stored in water cooling pond 10 to be pumped into the multiple water pumps 50 to exchange heat in blast furnace 20, is used for blast furnace
Water after 20 heat exchange is cooled down and is returned to multiple cooling towers 30 of water cooling pond 10, is set in turn in water cooling pond 10, blast furnace 20
Between cooling tower 30 for recycle water conservancy diversion recirculated cooling water main pipe 40 and with multiple cooling towers 30 be correspondingly arranged for pair
The water to multiple cooling towers 30 is sent to carry out cooling multiple blowers 60, blast furnace cooling stave recirculating cooling water system energy saver includes
Obtain module 71, statistical module 72 and processing module 73, wherein obtain module 71, for obtaining blast furnace cooling stave circulating cooling
The historical data of each process operation parameter and the hot status index of high-temperature wall surface when water system is run；Statistical module 72 is used for root
According to the historical data of acquisition, the correlation of each process operation parameter and the hot status index of high-temperature wall surface is counted, and according to correlation
Degree of strength each process operation parameter is ranked up；Processing module 73, for updating technological operation, for high-temperature wall surface
The hot stronger process operation parameter of status index correlation, reinforces its supply degree more by a small margin；For with the hot shape of high-temperature wall surface
The index related weaker process operation parameter of condition reduces its supply degree by a relatively large margin to save blast furnace cooling stave circulating cooling
Water system energy consumption.
Obtain each process operation parameter and the hot situation of wall surface in the clear blast furnace cooling stave recirculating cooling water system of module 71
Index obtains the Historical Monitoring data of each process operation parameter and the hot status index of wall surface.Wherein, Historical Monitoring data include each
A process operation parameter and each process operation parameter of the hot status index of high-temperature wall surface include recirculated cooling water main pipe flow and follow
Ring cooling water main pipe inlet temperature.The hot status index of high-temperature wall surface includes the temperature maximum of each temperature measuring point of blast furnace wall surface, is averaged
Value or median.According to the Historical Monitoring data of acquisition, each process operation parameter and the hot status index of high-temperature wall surface are counted
Correlation, and sequentially arranged by the correlation of each process operation parameter and the hot status index of high-temperature wall surface, it obtains each
Influence degree of the process operation parameter to the hot status index of high-temperature wall surface.
Statistical module 72 counts each process operation parameter and the hot situation of high-temperature wall surface according to the Historical Monitoring data of acquisition
The correlation of index, and sequentially arranged by the correlation of each process operation parameter and the hot status index of high-temperature wall surface, it obtains
Influence degree of each process operation parameter to the hot status index of high-temperature wall surface out.
Processing module 73 updates the configuration combination of process operation parameter, for influencing more strong process operation parameter,
Reinforce its supply degree more by a small margin；For influencing weaker process operation parameter, its supply degree is reduced by a relatively large margin to save
About blast furnace cooling stave recirculating cooling water system energy consumption.Wherein, reinforcing its supply degree includes the stream for increasing recirculated cooling water main pipe
The refrigerating capacity of amount and/or enhancing cooling tower；Reducing its supply degree includes reducing the flow of recirculated cooling water main pipe and/or subtracting
The refrigerating capacity of weak cooling tower.The flow for increasing recirculated cooling water main pipe includes the valve opening for increasing water pump, improves mating electricity
Machine revolving speed increases water pump vane diameter, increases the combination that water pump opens one of number of units or various ways；Reduce circulating cooling
The flow of jellyfish pipe includes the valve opening for reducing water pump, reduces necessary electromotor revolving speed, reduce water pump vane diameter, reduce water pump
Open the combination of one of number of units or various ways.Specifically, the refrigerating capacity for enhancing cooling tower includes improving cooling tower wind
Machine revolving speed improves cooling tower shower water spray flow, increases blower unlatching number of units and adjusts fan blade and places one of angle
Or the combination of various ways, to be lowered into the temperature of the recirculated water of blast furnace；The refrigerating capacity for weakening cooling tower includes that reduction is cold
But tower rotation speed of fan, reduction cooling tower shower water spray flow, reduction blower open number of units and adjust fan blade and place in angle
One or more modes combination, with improve enter blast furnace recirculated water temperature.Reinforce its supply degree more by a small margin, increases
The range value added controls in 1%~3% control interval of former supply degree；Its supply degree is reduced by a relatively large margin, is reduced
Range value control in 2%~10% control interval of former supply degree.
Blast furnace cooling stave recirculating cooling water system energy saver provided in this embodiment, by obtaining blast furnace cooling stave circulation
Historical Monitoring data when cooling water system is run；According to the Historical Monitoring data of acquisition, count each process operation parameter and
The correlation of the hot status index of high-temperature wall surface obtains each process operation parameter to the influence journey of the hot status index of high-temperature wall surface
Degree；The configuration combination for updating process operation parameter reinforces its confession for influencing more strong process operation parameter more by a small margin
To degree；For influencing weaker process operation parameter, its supply degree is reduced by a relatively large margin to save blast furnace cooling stave circulation
Cooling water system energy consumption, to obtain the configuration combination for the process operation parameter that low energy consumption.Blast furnace provided in this embodiment is cooling
Wall recirculating cooling water system energy saver, high degree of automation, energy-saving effect are good.
As shown in figure 4, the present embodiment also provides a kind of blast furnace cooling stave recirculating cooling water system energy saver, it further include section
Energy optimization module 74, energy saving optimizing module 74, for persistently reducing blast furnace cooling stave recirculating cooling water system energy consumption, until blast furnace
Cooling wall recirculating cooling water system is optimal level.
Energy saving optimizing module 74 obtains the configuration combination of updated process operation parameter, continues to acquire Historical Monitoring number
According to, saving optimization is carried out to blast furnace cooling stave recirculating cooling water system, persistently reduce blast furnace cooling stave recirculating cooling water system energy
Consumption, until blast furnace cooling stave recirculating cooling water system is optimal level.Wherein, blast furnace cooling stave recirculating cooling water system reaches
Optimal level refers to blast furnace cooling stave recirculating cooling water system power consumption values no longer reduce or the hot status index of the high-temperature wall surface
Through reaching the critical value range of license.
Blast furnace cooling stave recirculating cooling water system energy saver provided in this embodiment persistently reduces blast furnace cooling stave circulation
Cooling water system energy consumption is finally maintaining suitable blast furnace until blast furnace cooling stave recirculating cooling water system is optimal level
Under the premise of hot situation, blast furnace cooling stave recirculating cooling water system is obtained.Blast furnace cooling stave circulating cooling provided in this embodiment
Water system energy saver, high degree of automation, energy-saving effect are good.
See Fig. 2, in the blast furnace cooling stave recirculating cooling water system of the present embodiment, water pump 50 is inhaled from water cooling pond 10
Water collects after pressurization, is delivered to blast furnace 20 through recirculated cooling water main pipe 40 and exchanges heat, and the water after heat exchange is sent to the cooling of cooling tower 30,
Water cooling pond 10 is returned to after final cooling.Acquisition signal includes pressure gauge, flowmeter, water thermometer, wall temperature meter (total 48 wall surface temperature
Spend monitoring point) and electrical equipment water pump, blower motor electrical parameter (power and power consumption, figure in be not drawn into).Control means
The tune of tower valve, main pipe valve in the start and stop of motor including driving water pump and blower and its revolving speed, exit of pump and cooling tower
Section.
Correlativity is a kind of relationship of uncertainty, and related coefficient is the amount for studying linearly related degree between variable.
Due to the difference of research object, there are several types of definition modes for related coefficient.
Related coefficient: being called related coefficient or linearly dependent coefficient, is generally indicated with letter r, for measuring two variables
Between linear relationship.
The definition of related coefficient are as follows:
Wherein, Cov (X, Y) is the covariance of X and Y；Var [X] is the variance of X；Var [Y] is the variance of Y.
Circulating cooling water system of blast furnace provided in an embodiment of the present invention, design discharge 3600m3/ h designs blast furnace entrance
Circulating water temperature is 40 DEG C, and the highest wall temperature of license is 130 DEG C.Under design conditions, corresponding water pump and blower fan of cooling tower
Power consumption is respectively 650kW and 85kW.The process operation parameter for setting the system is recycled as circulating water flow and blast furnace entrance
Coolant-temperature gage, hot status index are the maximum value in all wall surface temperatures, are respectively counted by half a year historical data analysis, discovery circulation
Related coefficient between water flow and hot status index is -0.34, and between blast furnace entrance circulating water temperature and hot condition parameter
Related coefficient be -0.73, therefore think the phase for the circulation water of blast furnace system between circulating water flow and hot status index
Closing property is weaker, and the correlation between blast furnace entrance circulating water temperature and hot status index is stronger.Using the step in the present embodiment,
The motor speed of blower fan of cooling tower will be driven to increase, promote the refrigerating capacity of cooling tower, lead to blast furnace entrance circulating water temperature
37 DEG C are down on the basis of 40 DEG C of design, while blower fan of cooling tower power consumption rises to 102kW by the 85kW designed originally；And it is same
When reduce the valve opening of exit of pump, make the flow of recirculated water by the 3600m that designed originally3/ h is reduced to 3300m3/ h, water pump
Power consumption is reduced to 520kW by the 650kW designed originally.It is close before hot status index and optimization after above-mentioned supply configuration optimization
Seemingly, maximum temperature control in furnace wall is within 130 DEG C, but total power consumption of blower and water pump is reduced to 622kW by original 735kW,
System energy consumption reduces 15% or more.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of blast furnace cooling stave recirculating cooling water system power-economizing method is applied in blast furnace cooling stave recirculating cooling water system,
The blast furnace cooling stave recirculating cooling water system includes blast furnace (20), the water cooling pond (10) for storing cold water, for will be described
The cold water stored in water cooling pond (10) is pumped into the multiple water pumps (50) to exchange heat in the blast furnace (20), for described
Water after blast furnace (20) heat exchange is cooled down and is returned to multiple cooling towers (30) of the water cooling pond (10), is set in turn in institute
It states between water cooling pond (10), the blast furnace (20) and the cooling tower (30) for recycling the recirculated cooling water main pipe of water conservancy diversion
(40) and with the multiple cooling tower (30) it is correspondingly arranged for sending the water to the multiple cooling tower (30) to cool down
Multiple blowers (60), which is characterized in that the blast furnace cooling stave recirculating cooling water system power-economizing method the following steps are included:
Historical Monitoring data when S100, acquisition blast furnace cooling stave recirculating cooling water system operation, wherein the history prison
Measured data includes each process operation parameter and the hot status index of high-temperature wall surface, and the hot status index of high-temperature wall surface includes blast furnace
Temperature maximum, average value or the median of each temperature measuring point of wall surface；
S200, the Historical Monitoring data according to acquisition, count the phase of each process operation parameter and the hot status index of high-temperature wall surface
Guan Xing, and sequentially arranged by the correlation of each process operation parameter and the hot status index of high-temperature wall surface, obtain each work
Influence degree of the skill operating parameter to the hot status index of high-temperature wall surface, wherein correlation is assessed by following formula:
Wherein, Cov (X, Y) is the covariance of X and Y；Var [X] is the variance of X；Var [Y] is the variance of Y, and X indicates a kind of technique
Operating parameter, Y indicate hot status index；
S300, the configuration combination for updating the process operation parameter, for influencing more strong process operation parameter, more slightly
Degree reinforces it and supplies degree；For influencing weaker process operation parameter, it is described to save to reduce its supply degree by a relatively large margin
Blast furnace cooling stave recirculating cooling water system energy consumption.
2. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 1, which is characterized in that
After the step S300, further includes:
S400, step S100~step S300 is repeated, persistently reduces the blast furnace cooling stave recirculating cooling water system energy consumption, until
The blast furnace cooling stave recirculating cooling water system is optimal level.
3. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 1, which is characterized in that
Each process operation parameter includes recirculated cooling water main pipe flow and recirculated cooling water main pipe inlet temperature.
4. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 1, which is characterized in that
The hot status index of high-temperature wall surface includes the temperature maximum, average value or median of each temperature measuring point of blast furnace wall surface.
5. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 1, which is characterized in that
Described its supply degree of reinforcing includes the flow for increasing recirculated cooling water main pipe and/or the refrigerating capacity for enhancing cooling tower；
Described its supply degree that reduces includes the flow for reducing recirculated cooling water main pipe and/or the refrigerating capacity for weakening cooling tower.
6. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 5, which is characterized in that
The flow for increasing recirculated cooling water main pipe includes the valve opening for increasing water pump, improves necessary electromotor revolving speed, increases
Water pump vane diameter increases the combination that water pump opens one of number of units or various ways；The reduction recirculated cooling water main pipe
Flow include reduce water pump valve opening, reduce necessary electromotor revolving speed, reduce water pump vane diameter, reduce water pump open platform
The combination of one of number or various ways.
7. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 5, which is characterized in that
The refrigerating capacity of the enhancing cooling tower includes improving blower fan of cooling tower revolving speed, improving cooling tower shower water spray flow, increase
Add blower to open number of units and adjust the combination that fan blade places one of angle or various ways, to be lowered into blast furnace
The temperature of recirculated water；The refrigerating capacity for weakening cooling tower includes reducing blower fan of cooling tower revolving speed, reducing cooling tower shower water
Spray flow reduces the combination that blower opens number of units and adjusting fan blade places one of angle or various ways, to improve
Into the temperature of the recirculated water of blast furnace.
8. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 1, which is characterized in that
Described to reinforce its supply degree more by a small margin, increased range value control is in 1%~3% control zone of former supply degree
In；Described to reduce its supply degree by a relatively large margin, the range value of reduction controls 2%~10% control in former supply degree
In section.
9. blast furnace cooling stave recirculating cooling water system power-economizing method according to claim 2, which is characterized in that
The blast furnace cooling stave recirculating cooling water system is optimal level and refers to the blast furnace cooling stave recirculating cooling water system
Power consumption values no longer reduce or the hot status index of the high-temperature wall surface has reached the critical value range of license.
10. a kind of blast furnace cooling stave recirculating cooling water system energy saver is applied in blast furnace cooling stave recirculating cooling water system,
The blast furnace cooling stave recirculating cooling water system includes blast furnace (20), the water cooling pond (10) for storing cold water, for will be described
The cold water stored in water cooling pond (10) is pumped into the multiple water pumps (50) to exchange heat in the blast furnace (20), for described
Water after blast furnace (20) heat exchange is cooled down and is returned to multiple cooling towers (30) of the water cooling pond (10), is set in turn in institute
It states between water cooling pond (10), the blast furnace (20) and the cooling tower (30) for recycling the recirculated cooling water main pipe of water conservancy diversion
(40) and with the multiple cooling tower (30) it is correspondingly arranged for sending the water to the multiple cooling tower (30) to cool down
Multiple blowers (60), which is characterized in that the blast furnace cooling stave recirculating cooling water system energy saver includes:
Obtain module (71), for obtaining Historical Monitoring data when blast furnace cooling stave recirculating cooling water system operation,
In, the Historical Monitoring data include each process operation parameter and the hot status index of high-temperature wall surface, the hot shape of high-temperature wall surface
Condition index includes the temperature maximum, average value or median of each temperature measuring point of blast furnace wall surface；
Statistical module (72), for the Historical Monitoring data according to acquisition, count each process operation parameter and high-temperature wall surface heat
The correlation of status index, and sequentially arranged by the correlation of each process operation parameter and the hot status index of high-temperature wall surface
Column, obtain each process operation parameter to the influence degree of the hot status index of high-temperature wall surface, wherein correlation passes through following formula
To be assessed:
Wherein, Cov (X, Y) is the covariance of X and Y；Var [X] is the variance of X；Var [Y] is the variance of Y, and X indicates a kind of technique
Operating parameter, Y indicate hot status index；
Processing module (73), the configuration for updating the process operation parameter are combined, and are grasped for influencing more strong technique
Make parameter, reinforces its supply degree more by a small margin；For influencing weaker process operation parameter, it is reduced by a relatively large margin and supplies journey
Degree is to save the blast furnace cooling stave recirculating cooling water system energy consumption.
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