CN107420295A - A kind of operation method for reducing water pump component energy consumption and its application in steel rolling mill - Google Patents
A kind of operation method for reducing water pump component energy consumption and its application in steel rolling mill Download PDFInfo
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- CN107420295A CN107420295A CN201710905580.2A CN201710905580A CN107420295A CN 107420295 A CN107420295 A CN 107420295A CN 201710905580 A CN201710905580 A CN 201710905580A CN 107420295 A CN107420295 A CN 107420295A
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- water pump
- energy consumption
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- pump component
- operation method
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2205/00—Fluid parameters
- F04B2205/07—Pressure difference over the pump
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of operation method for reducing water pump component energy consumption, comprises the following steps：1) the least favorable end pressure difference of end-equipment in water pump component, value A are calculated；2) working speed of water pump component is adjusted, makes each equipment both sides pressure difference in component equal with the pressure drop of least favorable end described in step 1) A；3) statistic procedure 2) in regulation water pump component working speed after, the configuration parameter and actual operation parameters of component；4) according to gained configuration parameter and actual operation parameters in step 3), energy efficiency analysis is carried out to component, finds out and the reason for high energy consumption in component be present；5) transformation is optimized to the high-energy equipment that step 4) is found out, that is, obtains a kind of operation method for reducing water pump component energy consumption.The application provides a kind of operation method for reducing water pump component energy consumption, uses it in steel rolling mill, to reduce the energy consumption of steel rolling mill's water pump component, there is provided the operational efficiency of water pump, saves the energy.
Description
Technical field
The present invention relates to steel rolling mill's field of energy-saving technology, and in particular to it is a kind of reduce water pump component energy consumption operation method and
Its application in steel rolling mill.
Background technology
Country carries out the energy exploitation and saves the policy laid equal stress on.Reasonable energy utilization, reduce energy resource consumption, improve economy
Benefit is the vital task that should currently complete.Steel rolling mill is the rich and influential family of energy resource consumption, and the energy consumption of plumbing power-equipment accounts for
30%-40% of full factory or so, so, using water wisely, the potentiality for saving energy consumption and meaning are very big.
And the report of the operation method on reducing steel rolling mill's water pump component energy consumption is less at present, and reduce the effect of energy consumption
Unobvious.
The content of the invention
In view of this, the application provides a kind of operation method for reducing water pump component energy consumption, uses it in steel rolling mill, with
Reduce the energy consumption of steel rolling mill's water pump component, there is provided the operational efficiency of water pump, save the energy.
To solve above technical problem, technical scheme provided by the invention is a kind of operation side for reducing water pump component energy consumption
Method, comprise the following steps：
1) the least favorable end pressure difference of end-equipment in water pump component, value A are calculated；
2) working speed of water pump component is adjusted, makes each equipment both sides pressure difference and least favorable described in step 1) in component
End pressure drop A is equal；
3) statistic procedure 2) in regulation water pump component working speed after, the configuration parameter and actual operation parameters of component；
4) according to gained configuration parameter and actual operation parameters in step 3), energy efficiency analysis is carried out to component, found out
The reason for high energy consumption in component be present；
5) transformation is optimized to the high-energy equipment that step 4) is found out, that is, obtains a kind of fortune for reducing water pump component energy consumption
Row method.
Preferably, parameter includes quantity of circulating water, power of motor, load and operation duration in the step 3).
Preferably, the load includes maximal workload QGreatlyAnd sub-load amount QPortion, the operation duration includes maximum
Load QGreatlyOperation duration a and sub-load amount Q under statePortionOperation duration b under state.
Preferably, it is described according to maximal workload QGreatly, sub-load amount QPortion, operation duration a and operation duration b numerical value can
The load of each moment water pump component is determined, it is comprised the following steps that：
1) control section load QPortionValue be maximal workload QGreatlyValue 5%, 15%, 25%, 35%, 45%, 55%,
65%th, 75%, 85%, 95% times；
2) testing procedure 1) described in sub-load amount QPortionCorresponding operation duration b；
3) load of each moment water pump component is can obtain according to the data obtained in step 1) and step 2).
Preferably, the equipment of Optimizing Reconstruction includes turbid ring pump, upper tower pump, wears water back water pump, wears water confession in the step 5)
One or more of elevator pump and whirling well elevator pump between water pump, filtering.
Preferably, at least one set of standby condition group is additionally provided with the water pump component, it controls water according to operating condition
Pump starts or stops.
A kind of operation method by above-mentioned reduction water pump component energy consumption is applied in steel rolling mill, to reduce steel rolling mill's water pump group
The energy consumption of part, there is provided the operational efficiency of water pump, save the energy.
The least favorable end pressure difference of end-equipment in calculating water pump component, value A are proposed in the application first, and is led to
The working speed of water pump component is overregulated, makes each equipment both sides pressure difference in component equal with numerical value A.Wherein, adjusting part work
Make rotating speed, and the purpose equal with least favorable end pressure difference of each equipment both sides pressure difference in component is, at water pump component end
End equipment is set as under conditions of the pressure difference of least favorable end, according to the working speed of water pump corresponding to the different operating number of units to prestore
With the relation of operating efficiency, operating efficiency highest number of units and speed control strategy are chosen, the energy consumption of the water pump group is dropped
To minimum；Least favorable end pressure difference is chooses the pressure difference of the larger end-equipment of pressure difference, because pressure difference and flow are square into just
Than, therefore by setting least favorable end pressure difference to ensure that the flow of water pump component is supplied, simultaneously as the pressure of water pump both sides
Difference is directly proportional to the lift of water pump, therefore, water pump both sides pressure difference is arranged into least favorable end pressure difference and enables to water pump group
Actual lift is slightly larger than lift needed for water pump component, needed for meeting, while can also stablize each equipment pressure at both sides fluctuation institute
Caused changes in flow rate, contribute to the stabilization of water pump component.
Secondly, the application proposes the configuration parameter and actual operation parameters of water pump component after test adjustment work rotating speed, and
Energy efficiency analysis is carried out to component according to resulting configuration parameter and actual operation parameters, further finds out in component and exists
The reason for high energy consumption, wherein, the parameter includes quantity of circulating water, power of motor, load and operation duration.Wherein, it is described negative
Lotus amount includes maximal workload QGreatlyAnd sub-load amount QPortion, the operation duration includes maximal workload QGreatlyDuring operation under state
Long a and sub-load amount QPortionOperation duration b under state；According to maximal workload QGreatly, sub-load amount QPortion, operation duration a and
Operation duration b numerical value can determine that the load of each moment water pump component, and it is comprised the following steps that：1) control section load QPortion
Value be maximal workload QGreatly5%, 15%, 25%, 35%, 45%, 55%, 65%, 75%, 85%, 95% times of value；2) survey
Try sub-load amount Q described in step 1)PortionCorresponding operation duration b；3) according to the data obtained in step 1) and step 2)
Obtain the load of each moment water pump component.The reason for high energy consumption in water pump component is found out in test more than, and to high energy consumption
Component optimizes processing, further to reduce the energy consumption of water pump component.
Finally, rotating speed, quantity of circulating water, power of motor etc. are operated to high-energy equipment according to above-mentioned test result
Optimizing Reconstruction, that is, obtain it is a kind of reduce water pump component energy consumption operation method.Wherein, the equipment of Optimizing Reconstruction includes turbid ring
Pump, upper tower pump, wear water back water pump, wear one or more of elevator pump and whirling well elevator pump between water supply-water pump, filtering.
The operation method of above-mentioned reduction water pump component energy consumption is applied in steel rolling mill, to reduce steel rolling mill's water pump component
Energy consumption, there is provided the operational efficiency of water pump, save the energy.
The positive achievement that the present invention obtains is：
The present invention provides a kind of operation method of reduction water pump component energy consumption, and this method is applied into steel rolling mill's water pump group
In, to reduce the energy consumption of steel rolling mill's water pump component, so as to improve the operational efficiency of water pump, save the energy.
Embodiment
In order that those skilled in the art more fully understands technical scheme, with reference to specific embodiment pair
The present invention is described in further detail.
The energy is the basis of the national economic development, has statistics to show, a national energy volume of holding directly determines it
Economical and society development speed and potentiality.And it is known that divide primary energy and secondary energy sources on energy resource structure and composition, can
The renewable sources of energy and non-renewable energy resources.All secondary energy sources all rely on using and developing for primary energy, such as electric power,
It is by the demand of primary energy and non-renewable energy resources.With the trend pickup of social economy, consumption to the energy and
Demand is also increasing, while the reserves of directly rely on non-renewable energy resources coal, oil etc. but just accelerate to reduce.By
This, one is just directly put in face of people the problem of very serious critically important, that is, the energy is panic.
Developing country of the China as maximum, economy are in surging developing stage, and the supply of the energy then seems particularly
It is very important.And in fact, Chinese main energy sources coal, the reserve-production ratio of oil and natural gas are respectively about 80,15 and near at present
50,50%, 40% and 70% or so of substantially global average level, earlier than global fossil lack of energy speed.Following 5-
10 years, Chinese coal domestic production amount disclosure satisfy that domestic consumption amount substantially, and the production of former oil and gas can not then meet need
Ask, particularly the breach of crude oil is maximum.Therefore, under the panic overall situation of world energy sources, the saving of energy resources resource, improve
Efficiency of energy utilization, more it is particularly important for the Energy Situation of China, and it is extremely urgent.
In real every profession and trade energy resource consumption ratio, industrial consumption energy is maximum, and steel mill is the main energy consumption of industrial circle
Rich and influential family.Publish within 2006《Chinese energy statistical yearbook》It has been shown that, nearly ten years, Chinese Steel Industry energy-output ratio accounts for the whole nation
The proportion of total energy consumption word 12%-15% always.In energy consumption structure, coal is occupied an leading position, electric power secondly, its
His energy possession share is seldom, and in the steel energy resource consumptions of 2002, coal accounts for 72.19%, and electric power accounts for 23.52%, other
Summation is less than 5%.Industrial energy saving is from largely saying to be exactly to require that steel mill reduces energy consumption, and the reduction of steel mill's energy consumption very great Cheng
The reduction of recirculated water energy consumption is depended on degree, therefore, finds a kind of operation method for lowering water pump component energy consumption for steel rolling mill
It is particularly important to reduce energy consumption aspect.
The technical scheme that the application provides is a kind of operation method for reducing water pump component energy consumption, is comprised the following steps：
1) the least favorable end pressure difference of end-equipment in water pump component, value A are calculated；
2) working speed of water pump component is adjusted, makes each equipment both sides pressure difference and least favorable described in step 1) in component
End pressure drop A is equal；
3) statistic procedure 2) in regulation water pump component working speed after, the configuration parameter and actual operation parameters of component；
4) according to gained configuration parameter and actual operation parameters in step 3), energy efficiency analysis is carried out to component, found out
The reason for high energy consumption in component be present；
5) transformation is optimized to the high-energy equipment that step 4) is found out, that is, obtains a kind of fortune for reducing water pump component energy consumption
Row method.
Wherein, parameter described in the step 3) includes quantity of circulating water, power of motor, load and operation duration；It is described
Load includes maximal workload QGreatlyAnd sub-load amount QPortion, the operation duration includes maximal workload QGreatlyOperation under state
Duration a and sub-load amount QPortionOperation duration b under state, wherein, according to maximal workload QGreatly, sub-load amount QPortion, operation
Duration a and operation duration b numerical value can determine that the load of each moment water pump component, and it is comprised the following steps that：
1) control section load QPortionValue be maximal workload QGreatlyValue 5%, 15%, 25%, 35%, 45%, 55%,
65%th, 75%, 85%, 95% times；
2) testing procedure 1) described in sub-load amount QPortionCorresponding operation duration b；
3) load of each moment water pump component is can obtain according to the data obtained in step 1) and step 2).
Wherein, at least one set of standby condition group is additionally provided with the water pump component, it controls water pump according to operating condition
Start or stop.
A kind of operation method by above-mentioned reduction water pump component energy consumption is applied in steel rolling mill, to reduce steel rolling mill's water pump group
The energy consumption of part.
The least favorable end pressure difference of end-equipment in calculating water pump component, value A are proposed in the application first, and is led to
The working speed of water pump component is overregulated, makes each equipment both sides pressure difference in component equal with numerical value A.Wherein, adjusting part work
Make rotating speed, and the purpose equal with least favorable end pressure difference of each equipment both sides pressure difference in component is, at water pump component end
End equipment is set as under conditions of the pressure difference of least favorable end, according to the working speed of water pump corresponding to the different operating number of units to prestore
With the relation of operating efficiency, operating efficiency highest number of units and speed control strategy are chosen, the energy consumption of the water pump group is dropped
To minimum；Least favorable end pressure difference is chooses the pressure difference of the larger end-equipment of pressure difference, because pressure difference and flow are square into just
Than, therefore by setting least favorable end pressure difference to ensure that the flow of water pump component is supplied, simultaneously as the pressure of water pump both sides
Difference is directly proportional to the lift of water pump, therefore, water pump both sides pressure difference is arranged into least favorable end pressure difference and enables to water pump group
Actual lift is slightly larger than lift needed for water pump component, needed for meeting, while can also stablize each equipment pressure at both sides fluctuation institute
Caused changes in flow rate, contribute to the stabilization of water pump component.
Secondly, the application proposes the configuration parameter and actual operation parameters of water pump component after test adjustment work rotating speed, and
Energy efficiency analysis is carried out to component according to resulting configuration parameter and actual operation parameters, further finds out in component and exists
The reason for high energy consumption, wherein, the parameter includes quantity of circulating water, power of motor, load and operation duration.Wherein, it is described negative
Lotus amount includes maximal workload QGreatlyAnd sub-load amount QPortion, the operation duration includes maximal workload QGreatlyDuring operation under state
Long a and sub-load amount QPortionOperation duration b under state；According to maximal workload QGreatly, sub-load amount QPortion, operation duration a and
Operation duration b numerical value can determine that the load of each moment water pump component, and it is comprised the following steps that：1) control section load QPortion
Value be maximal workload QGreatly5%, 15%, 25%, 35%, 45%, 55%, 65%, 75%, 85%, 95% times of value；2) survey
Try sub-load amount Q described in step 1)PortionCorresponding operation duration b；3) according to the data obtained in step 1) and step 2)
Obtain the load of each moment water pump component.The reason for high energy consumption in water pump component is found out in test more than, and to high energy consumption
Component optimizes processing, further to reduce the energy consumption of water pump component.
Finally, rotating speed, quantity of circulating water, power of motor etc. are operated to high-energy equipment according to above-mentioned test result
Optimizing Reconstruction, that is, obtain it is a kind of reduce water pump component energy consumption operation method.Wherein, the equipment of Optimizing Reconstruction includes turbid ring
Pump, upper tower pump, wear water back water pump, wear one or more of elevator pump and whirling well elevator pump between water supply-water pump, filtering.
The operation method of above-mentioned reduction water pump component energy consumption is applied in steel rolling mill, to reduce steel rolling mill's water pump component
Energy consumption, there is provided the operational efficiency of water pump, save the energy.
A kind of operation method for reducing water pump component energy consumption, comprises the following steps：
1) the least favorable end pressure difference of end-equipment in water pump component is calculated, to obtain in water pump component equipment both sides most
Big pressure difference, value A；Because maximum differential pressure is directly proportional to the flow and lift of water pump, therefore, each equipment of water pump component need to be controlled
The pressure difference of both sides reaches maximum differential pressure, so as to meet in water pump component needed for each equipment, while can also make water pump component stable operation；
2) working speed of water pump component is adjusted, makes each equipment both sides pressure difference and least favorable described in step 1) in component
End pressure drop A is equal；By controlling each equipment both sides pressure difference equal with least favorable end pressure drop A, tentatively reach
Reduce the purpose of water pump component energy consumption；
3) statistic procedure 2) in regulation water pump component working speed after, the configuration parameter and actual operation parameters of component, its
In, the parameter includes quantity of circulating water, power of motor, load and operation duration；Wherein, load includes maximal workload QGreatly
And sub-load amount QPortion, the operation duration includes maximal workload QGreatlyOperation duration a and sub-load amount Q under statePortionShape
Operation duration b under state；
4) according to gained configuration parameter and actual operation parameters in step 3), energy efficiency analysis is carried out to component, found out
The reason for high energy consumption in component be present；
5) transformation is optimized to the high-energy equipment that step 4) is found out, that is, obtains a kind of fortune for reducing water pump component energy consumption
Row method；Wherein, the equipment of Optimizing Reconstruction include turbid ring pump, upper tower pump, wear water back water pump, wear water supply-water pump, filtering between lifted
Pump and whirling well elevator pump；By the high-energy equipment in Optimizing Reconstruction water pump component further to reduce the energy of water pump component
Consumption, there is provided the operational efficiency of water pump, save the energy.
Wherein, according to maximal workload QGreatly, sub-load amount QPortion, operation duration a and operation duration b numerical value can determine that respectively
The load of moment water pump component, it is comprised the following steps that：
1) control section load QPortionValue be maximal workload QGreatlyValue 5%, 15%, 25%, 35%, 45%, 55%,
65%th, 75%, 85%, 95% times；
2) testing procedure 1) described in sub-load amount QPortionCorresponding operation duration b；
3) load of each moment water pump component is can obtain according to the data obtained in step 1) and step 2).
Wherein, at least one set of standby condition group is additionally provided with water pump component, it controls opening for water pump according to operating condition
Dynamic or stopping, to prevent certain equipment in water pump component breaks down and causes the situation of assembly operating failure to occur.
The operation method of above-mentioned reduction water pump component energy consumption is applied in steel rolling mill, to reduce steel rolling mill's water pump component
Energy consumption, there is provided the operational efficiency of water pump, save the energy.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair
The limitation of the present invention, protection scope of the present invention should be defined by claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of operation method for reducing water pump component energy consumption, it is characterised in that comprise the following steps：
1) the least favorable end pressure difference of end-equipment in water pump component, value A are calculated；
2) working speed of water pump component is adjusted, makes each equipment both sides pressure difference and least favorable end described in step 1) in component
Pressure drop A is equal；
3) statistic procedure 2) in regulation water pump component working speed after, the configuration parameter and actual operation parameters of component；
4) according to gained configuration parameter and actual operation parameters in step 3), energy efficiency analysis is carried out to component, finds out component
In the reason for high energy consumption be present；
5) transformation is optimized to the high-energy equipment that step 4) is found out, that is, obtains a kind of operation side for reducing water pump component energy consumption
Method.
A kind of 2. operation method for reducing water pump component energy consumption according to claim 1, it is characterised in that institute in step 3)
Stating parameter includes quantity of circulating water, power of motor, load and operation duration.
A kind of 3. operation method for reducing water pump component energy consumption according to claim 2, it is characterised in that the load
Including maximal workload QGreatlyAnd sub-load amount QPortion, the operation duration includes maximal workload QGreatlyOperation duration a under state
And sub-load amount QPortionOperation duration b under state.
4. a kind of operation method for reducing water pump component energy consumption according to claim 3, it is characterised in that negative according to maximum
Lotus amount QGreatly, sub-load amount QPortion, operation duration a and operation duration b numerical value can determine that the load of each moment water pump component, its
Comprise the following steps that：
1) control section load QPortionValue be maximal workload QGreatlyValue 5%, 15%, 25%, 35%, 45%, 55%,
65%th, 75%, 85%, 95% times；
2) testing procedure 1) described in sub-load amount QPortionCorresponding operation duration b；
3) load of each moment water pump component is can obtain according to the data obtained in step 1) and step 2).
A kind of 5. operation method for reducing water pump component energy consumption according to claim 1, it is characterised in that the step 5)
The equipment of middle Optimizing Reconstruction includes turbid ring pump, upper tower pump, wears water back water pump, wears elevator pump and whirling well between water supply-water pump, filtering
One or more of elevator pump.
A kind of 6. operation method for reducing water pump component energy consumption according to claim 1, it is characterised in that the water pump group
At least one set of standby condition group is additionally provided with part, it controls starting or stoping for water pump according to operating condition.
7. a kind of operation method of reduction water pump component energy consumption by claim 1-6 is applied in steel rolling mill, to reduce steel rolling
The energy consumption of factory's water pump component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710905580.2A CN107420295A (en) | 2017-09-29 | 2017-09-29 | A kind of operation method for reducing water pump component energy consumption and its application in steel rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710905580.2A CN107420295A (en) | 2017-09-29 | 2017-09-29 | A kind of operation method for reducing water pump component energy consumption and its application in steel rolling mill |
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| Publication Number | Publication Date |
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| CN107420295A true CN107420295A (en) | 2017-12-01 |
Family
ID=60436275
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823283A1 (en) * | 1987-07-09 | 1989-01-26 | Tokyo Keiki Kk | CONTROL DEVICE FOR A CONTROLLABLE FEED PUMP |
| DE102008064491A1 (en) * | 2008-12-23 | 2010-06-24 | Kaeser Kompressoren Gmbh | Simulation-based method for controlling or regulating compressed air stations |
| CN102393771A (en) * | 2011-08-08 | 2012-03-28 | 新邮通信设备有限公司 | Energy-saving environment monitoring system |
| CN103486693A (en) * | 2013-09-25 | 2014-01-01 | 广州大学 | Energy-saving control method for central air-conditioning chilled water system |
| CN105042801A (en) * | 2015-09-01 | 2015-11-11 | 湖南集森节能环保科技有限公司 | Energy-saving control method and system for chilled water pump group |
| CN105369847A (en) * | 2014-08-19 | 2016-03-02 | 上海东方威尔节能技术有限公司 | Integral energy-saving optimization method for circulating water system |
-
2017
- 2017-09-29 CN CN201710905580.2A patent/CN107420295A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3823283A1 (en) * | 1987-07-09 | 1989-01-26 | Tokyo Keiki Kk | CONTROL DEVICE FOR A CONTROLLABLE FEED PUMP |
| DE102008064491A1 (en) * | 2008-12-23 | 2010-06-24 | Kaeser Kompressoren Gmbh | Simulation-based method for controlling or regulating compressed air stations |
| CN102393771A (en) * | 2011-08-08 | 2012-03-28 | 新邮通信设备有限公司 | Energy-saving environment monitoring system |
| CN103486693A (en) * | 2013-09-25 | 2014-01-01 | 广州大学 | Energy-saving control method for central air-conditioning chilled water system |
| CN105369847A (en) * | 2014-08-19 | 2016-03-02 | 上海东方威尔节能技术有限公司 | Integral energy-saving optimization method for circulating water system |
| CN105042801A (en) * | 2015-09-01 | 2015-11-11 | 湖南集森节能环保科技有限公司 | Energy-saving control method and system for chilled water pump group |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |