CN102052688B - Method for controlling supply of fuel oil and air in heat insulation mode - Google Patents
Method for controlling supply of fuel oil and air in heat insulation mode Download PDFInfo
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- CN102052688B CN102052688B CN2010106197373A CN201010619737A CN102052688B CN 102052688 B CN102052688 B CN 102052688B CN 2010106197373 A CN2010106197373 A CN 2010106197373A CN 201010619737 A CN201010619737 A CN 201010619737A CN 102052688 B CN102052688 B CN 102052688B
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Abstract
The invention provides a method for controlling supply of fuel oil and air in a heat insulation mode. The method comprises the following steps: detecting the current fuel oil mass and computing a first air demand quantity according to the current flow detection value of the fuel oil and an air/fuel ratio; computing a second air demand quantity according to the fuel oil flow set value in a heat insulation mode and the air/fuel ratio; comparing the first air demand quantity with the second air demand quantity and selecting the higher air demand quantity as the final set value of an air flow controller; detecting the current air flow and computing a first fuel oil demand quantity according to the current flow detection value of air and the air/fuel ratio; comparing the first fuel oil demand quantity with the fuel oil flow set value in a heat insulation mode and selecting the lower one as the second fuel oil demand quantity; and comparing the second fuel oil demand quantity with the maximum allowable value of the fuel oil flow in a heat insulation mode and selecting the lower one as the final set value of a fuel oil controller. By adopting the method, not only can the production cost be greatly lowered, but also the energy consumption can be reduced.
Description
Technical field
The present invention relates to metallurgical processing and design field, particularly a kind of control method that is incubated fuel oil and air supply under the pattern.
Background technology
The oxygen top blown melting is one of non-ferrous metal metallurgy method commonly used.The oxygen top blown smelting furnace adopts the circular body of heater of the flat-top that is lined with refractory brick.When oxygen top blown smelting furnace refractory brick continues between the state of heat (melting startup) and cold (melting stops) repeatedly the time, refractory brick can expand even break.In order to reduce the temperature fluctuation of refractory brick, prevent the generation of thermal shock, the temperature of using burner to control in the whole smelting furnace is kept in balance.If the flame of burner is too short or draft is too big, all can cause some zone overheated and the other zone is cold excessively.
Burner has two kinds of mode of operations: a kind of is the insulation pattern, does not use at the oxygen top blown smelting furnace under the situation of spray gun, and burner gets into the insulation pattern and keeps stove body temperature; Another kind is a second-time burning wind pattern, and in fusion process (spray gun is arranged in body of heater), burner gets into second-time burning wind pattern, and excessive escaping gas burns away.
Under the insulation pattern, the insulation burner mainly leans on the burning of fuel oil and air to heat and keeps the interior temperature of oxygen top blown smelting furnace.In short supply day by day along with fuel resource, and requirements of green environmental protection, how can when keeping temperature, practice thrift fuel oil become problem demanding prompt solution.
Summary of the invention
The object of the invention is intended to one of solve the problems of the technologies described above at least, particularly proposes a kind of control method that is incubated fuel oil and air supply under the pattern.
For achieving the above object, the present invention proposes a kind of control method that is incubated fuel oil and air supply under the pattern, may further comprise the steps: detect the current oil mass of fuel oil, calculate the first air requirements amount according to the present flow rate detected value and the wind oil ratio of fuel oil; Calculate the second air requirements amount according to insulation pattern fuel flow setting value and said wind oil ratio; Said first air requirements amount and the said second air requirements amount are compared, select final setting value the highest among both as air flow controller; Detect the present flow rate of air, calculate the first fuel demand amount according to the present flow rate detected value and the wind oil ratio of air; Said first fuel demand amount and said insulation pattern fuel flow setting value are compared, select conduct minimum among both the second fuel demand amount; And the maximum permissible value of the said second fuel demand amount with insulation pattern fuel flow compared, select final setting value minimum among both as fuel controller.
In one embodiment of the invention, said wind oil ratio is a fixed value.
In one embodiment of the invention, the present flow rate detected value * wind oil ratio of first air requirements amount=fuel oil.
In one embodiment of the invention, second air requirements amount=insulation pattern fuel flow setting value * wind oil ratio.
In one embodiment of the invention, the present flow rate detected value ÷ wind oil ratio of first fuel demand amount=air.
The present invention is through the minimum required amount of fuel of selection, and corresponding increase air consumption, thereby when guaranteeing temperature, reduces the fuel oil consumption as much as possible, not only can reduce production costs greatly like this, can also reduce the consumption to the energy.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the flow chart of the control method of fuel oil and air supply under the insulation pattern of the embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
Be illustrated in figure 1 as the flow chart of the control method of fuel oil and air supply under the insulation pattern of the embodiment of the invention, this method may further comprise the steps:
Step S101 detects the current oil mass of fuel oil, calculates the first air requirements amount according to the present flow rate detected value and the wind oil ratio of fuel oil.
In one embodiment of the invention, the wind oil ratio is a fixed value.
Present flow rate detected value * wind the oil ratio of first air requirements amount=fuel oil.
Step S102 calculates the second air requirements amount according to insulation pattern fuel flow setting value and wind oil ratio.
Particularly, second air requirements amount=insulation pattern fuel flow setting value * wind oil ratio.
Step S103 compares the first air requirements amount and the second air requirements amount, selects the final setting value as air flow controller the highest among both.
Step S104 detects the present flow rate of air, calculates the first fuel demand amount according to the present flow rate detected value and the wind oil ratio of air.
Particularly, the present flow rate detected value ÷ wind oil ratio of first fuel demand amount=air.
Step S105 compares the first fuel demand amount and insulation pattern fuel flow setting value, selects conduct minimum among both the second fuel demand amount.
Step S106 compares the maximum permissible value of the second fuel demand amount with insulation pattern fuel flow, selects the final setting value as fuel controller minimum among both.
The present invention is through the minimum required amount of fuel of selection, and corresponding increase air consumption, thereby when guaranteeing temperature, reduces the fuel oil consumption as much as possible, not only can reduce production costs greatly like this, can also reduce the consumption to the energy.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (5)
1. a control method that is incubated fuel oil and air supply under the pattern is characterized in that, may further comprise the steps:
Detect the present flow rate of fuel oil, calculate the first air requirements amount according to the present flow rate detected value and the wind oil ratio of fuel oil;
Calculate the second air requirements amount according to insulation pattern fuel flow setting value and said wind oil ratio;
Said first air requirements amount and the said second air requirements amount are compared, select final setting value the highest among both as air flow controller;
Detect the present flow rate of air, calculate the first fuel demand amount according to the present flow rate detected value and the wind oil ratio of air;
Said first fuel demand amount and said insulation pattern fuel flow setting value are compared, select conduct minimum among both the second fuel demand amount; And
The maximum permissible value of the said second fuel demand amount with insulation pattern fuel flow compared, select final setting value minimum among both as fuel controller.
2. the control method of fuel oil and air supply is characterized in that said wind oil ratio is a fixed value under the insulation pattern according to claim 1.
3. the control method of fuel oil and air supply under the insulation pattern according to claim 1 is characterized in that said present flow rate detected value and the wind oil ratio first air requirements amount that calculates according to fuel oil further comprises:
Present flow rate detected value and wind oil ratio according to fuel oil calculate the first air requirements amount through following formula,
Present flow rate detected value * wind the oil ratio of first air requirements amount=fuel oil.
4. the control method of fuel oil and air supply is characterized in that under the insulation pattern according to claim 1, further comprises according to insulation pattern fuel flow setting value and the said wind oil ratio second air requirements amount that calculates:
According to insulation pattern fuel flow setting value and said wind oil ratio, calculate the second air requirements amount through following formula,
Second air requirements amount=insulation pattern fuel flow setting value * wind oil ratio.
5. the control method of fuel oil and air supply under the insulation pattern according to claim 1 is characterized in that said present flow rate detected value and the wind oil ratio first fuel demand amount that calculates according to air further comprises:
Present flow rate detected value and wind oil ratio according to air calculate the first fuel demand amount through following formula,
The present flow rate detected value ÷ wind oil ratio of first fuel demand amount=air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106197373A CN102052688B (en) | 2010-12-31 | 2010-12-31 | Method for controlling supply of fuel oil and air in heat insulation mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106197373A CN102052688B (en) | 2010-12-31 | 2010-12-31 | Method for controlling supply of fuel oil and air in heat insulation mode |
Publications (2)
| Publication Number | Publication Date |
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| CN102052688A CN102052688A (en) | 2011-05-11 |
| CN102052688B true CN102052688B (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106197373A Active CN102052688B (en) | 2010-12-31 | 2010-12-31 | Method for controlling supply of fuel oil and air in heat insulation mode |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2300804Y (en) * | 1997-04-10 | 1998-12-16 | 北京卓仕达自控工程技术有限公司 | Efficient gasifying device for liquid fuel |
| CN1082172C (en) * | 1998-07-21 | 2002-04-03 | 浙江大学 | Air oil proportional regulating device |
| CN2706597Y (en) * | 2004-06-10 | 2005-06-29 | 傅天锡 | Thin combustion oil saving beneficiating device |
| JP5011775B2 (en) * | 2006-03-27 | 2012-08-29 | カシオ計算機株式会社 | Fuel cell power generator |
| US8980489B2 (en) * | 2006-03-27 | 2015-03-17 | Casio Computer Co., Ltd. | Fuel cell type power generation device, electronic apparatus and treatment method of fuel |
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| CN102052688A (en) | 2011-05-11 |
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