CN104930541A - Tank furnace dissolution burner control method - Google Patents
Tank furnace dissolution burner control method Download PDFInfo
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- CN104930541A CN104930541A CN201510279434.4A CN201510279434A CN104930541A CN 104930541 A CN104930541 A CN 104930541A CN 201510279434 A CN201510279434 A CN 201510279434A CN 104930541 A CN104930541 A CN 104930541A
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- natural gas
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- flow ratio
- tank furnace
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Abstract
The invention discloses a tank furnace dissolution burner control method which comprises the following steps that 1. a flowmeter monitors the flow of oxygen and natural gas; 2. the set flow ratio value of oxygen and natural gas is set to be 1 : 2 in a control unit; 3. the flowmeter sends the measured oxygen flow value and the natural gas flow value into the control unit, the control unit compares the oxygen flow value with the natural gas flow value, and a practical ratio value is obtained; and 4. the control unit compares the practical ratio value with the set flow ratio value, and if the specific gravity of natural gas is larger than the specific gravity of natural gas in the set flow ratio value, the control unit sends instructions to close a valve on a natural gas conveying pipeline. According to the method, it is guaranteed that natural gas is always controlled in a reasonable flow range; accordingly, the problem that too much natural gas is conveyed into a tank furnace is avoided, the potential safety hazard caused by natural gas on the tank furnace is effectively lowered, and it is guaranteed that that production activities are carried out smoothly.
Description
Technical field
The present invention relates to the automated control technology that a kind of tank furnace dissolves burner, be specifically related to a kind of tank furnace and dissolve burner control.
Background technology
Tank furnace is the widely used a kind of combustion apparatus of product scope such as a kind of electron level fiber cloth, and in it, the main tank furnace dissolving burner that relies on heats.And provide heating source to melt burner to this tank furnace, generally all need to input a large amount of natural gases and oxygen in tank furnace, to ensure that tank furnace melts the continuous and effective burning of burner.But, because natural gas is a kind of fuel gas, if in use, do not note the control ensureing its flow, when causing it to input in tank furnace in large quantities, just likely to whole tank furnace even job shop cause no small potential safety hazard, be unfavorable for ensureing carrying out smoothly of activity in production.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of tank furnace that effectively can control natural gas transport flow and dissolving burner control.
In order to achieve the above object, technical scheme of the present invention is as follows:
Tank furnace dissolves burner control, and it comprises the following steps:
1) flowmeter is installed, for monitoring the flow of oxygen and natural gas at oxygen conveying pipe and natural-gas transfer pipeline place;
2) the setting flow ratio setting oxygen and natural gas in control unit is 1: 2;
3) the oxygen flow value recorded and natural gas flow value are sent in control unit by flowmeter, and oxygen flow value and natural gas flow value compare and draw actual ratio by control unit;
4) actual ratio and setting flow ratio compare by control unit, proportion as natural gas is greater than the proportion of natural gas in setting flow ratio, control unit then sends the valve on instruction closedown natural-gas transfer pipeline, otherwise, control unit does not then send instruction to valve, and natural-gas transfer pipeline continues to export natural gas.
The present invention is by being set as 1: 2 to the setting flow ratio of oxygen and natural gas, implemented the input flow rate of monitor and forecast natural gas by control unit simultaneously, ensure that natural gas controls all the time in rational range of flow, thus prevent natural gas from inputting tank furnace too much, effectively reduce the potential safety hazard that natural gas causes tank furnace, ensure carrying out smoothly of activity in production.
On the basis of technique scheme, the present invention can also do following improvement:
As preferred scheme, the second setting flow ratio is also provided with in above-mentioned control unit, in it, the proportion of natural gas is less than the proportion of natural gas in setting flow ratio, when the proportion of natural gas in actual ratio is greater than the proportion of natural gas in the second setting flow ratio but is less than the proportion of natural gas in setting flow ratio, control unit then sends instruction and opens alarm unit, otherwise, when the proportion of natural gas in actual ratio is less than the proportion of natural gas in the second setting flow ratio, alarm unit is not opened.
Adopt above-mentioned preferred scheme, can staff be reminded to note the changes in flow rate of natural gas before control unit cuts off natural gas input.
As preferred scheme, above-mentioned alarm unit is audible-visual annunciator.
Adopt above-mentioned preferred scheme, staff can be reminded with the form of acousto-optic.
As preferred scheme, in the comparison, when the proportion of natural gas equals the proportion setting natural gas in flow ratio, control unit then sends the aperture that instruction starts to reduce valve to above-mentioned control unit.
Adopt above-mentioned preferred scheme, the input flow rate of natural gas can be reduced when natural gas is about to exceed standard, prevent flow from rising and too fastly cause the system failure and potential safety hazard.
As preferred scheme, the 3rd setting flow ratio is also provided with in above-mentioned control unit, in it, the proportion of natural gas is greater than the proportion of natural gas in setting flow ratio, when the proportion of natural gas in actual ratio is greater than the proportion of natural gas in the 3rd setting flow ratio, control unit then sends instruction and closes valve on natural-gas transfer pipeline completely.
Adopt above-mentioned preferred scheme, can progressively close the input of natural gas after flow reduces, make the cut-out of natural gas can more steady and safety.
Accompanying drawing explanation
Fig. 1 is the implementing procedure figure that tank furnace of the present invention dissolves burner control.
Fig. 2 is that tank furnace of the present invention dissolves the implementing procedure figure of burner control under other embodiments.
Detailed description of the invention
The preferred embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
In order to reach object of the present invention, as shown in Figure 1-2, dissolve at tank furnace of the present invention in the some of them embodiment of burner control, it comprises the following steps:
S1: install flowmeter, for monitoring the flow of oxygen and natural gas at oxygen conveying pipe and natural-gas transfer pipeline place;
S2: the setting flow ratio setting oxygen and natural gas in control unit is 1: 2;
S4: the oxygen flow value recorded and natural gas flow value are sent in control unit by flowmeter, oxygen flow value and natural gas flow value compare and draw actual ratio by control unit;
S41-42: actual ratio and setting flow ratio compare by control unit, proportion as natural gas is greater than the proportion of natural gas in setting flow ratio, control unit then sends the valve on instruction closedown natural-gas transfer pipeline, otherwise, control unit does not then send instruction to valve, and natural-gas transfer pipeline continues to export natural gas.
Wherein, control unit can comprise the control assembly such as signal adapter and PLC control chip, and signal adapter receives the data-signal of flowmeter, and PLC control chip is responsible for processing above-mentioned process.This method is by being set as 1: 2 to the setting flow ratio of oxygen and natural gas, implemented the input flow rate of monitor and forecast natural gas by control unit simultaneously, ensure that natural gas controls all the time in rational range of flow, thus prevent natural gas from inputting tank furnace too much, effectively reduce the potential safety hazard that natural gas causes tank furnace, ensure carrying out smoothly of activity in production.
In order to optimize implementation result of the present invention further, as shown in Figure 1, dissolve in other embodiments of burner control at tank furnace of the present invention, on the basis of the above, also setting steps S4, S41 and S42: be also provided with the second setting flow ratio in above-mentioned control unit, in it, the proportion of natural gas is less than the proportion of natural gas in setting flow ratio, when the proportion of natural gas in actual ratio is greater than the proportion of natural gas in the second setting flow ratio but is less than the proportion of natural gas in setting flow ratio, control unit then sends instruction and opens alarm unit, otherwise, when the proportion of natural gas in actual ratio is less than the proportion of natural gas in the second setting flow ratio, alarm unit is not opened.Adopt the scheme of this embodiment, can staff be reminded to note the changes in flow rate of natural gas before control unit cuts off natural gas input.Wherein, this alarm unit is the alarm that audible-visual annunciator etc. is known, can remind staff with the form of acousto-optic.
In order to optimize implementation result of the present invention further, as shown in Figure 2, dissolve in other embodiments of burner control at tank furnace of the present invention, on the basis of the above, also comprise step S43: above-mentioned control unit in the comparison, when the proportion of natural gas equals the proportion setting natural gas in flow ratio, control unit then sends the aperture that instruction starts to reduce valve.Adopt the scheme of this embodiment, the input flow rate of natural gas can be reduced when natural gas is about to exceed standard, prevent flow from rising and too fastly cause the system failure and potential safety hazard.
In order to optimize implementation result of the present invention further, as shown in Figure 2, dissolve in other embodiments of burner control at tank furnace of the present invention, on the basis of the above, also comprise step S5, S51 and S52: in above-mentioned control unit, be also provided with the 3rd setting flow ratio, in it, the proportion of natural gas is greater than the proportion of natural gas in setting flow ratio, when the proportion of natural gas in actual ratio is greater than the proportion of natural gas in the 3rd setting flow ratio, control unit then sends instruction and closes valve on natural-gas transfer pipeline completely.Adopt the scheme of this embodiment, can progressively close the input of natural gas after flow reduces, make the cut-out of natural gas can more steady and safety.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. tank furnace dissolves burner control, it is characterized in that, comprises the following steps:
1) flowmeter is installed, for monitoring the flow of oxygen and natural gas at oxygen conveying pipe and natural-gas transfer pipeline place;
2) the setting flow ratio setting oxygen and natural gas in control unit is 1
:2;
3) the oxygen flow value recorded and natural gas flow value are sent in described control unit by described flowmeter, and described oxygen flow value and natural gas flow value compare and draw actual ratio by described control unit;
4) described actual ratio and described setting flow ratio compare by described control unit, the proportion of natural gas in flow ratio is set as described in proportion as natural gas is greater than, described control unit then sends instruction and closes valve on described natural-gas transfer pipeline, otherwise, described control unit does not then send instruction to described valve, and described natural-gas transfer pipeline continues to export natural gas.
2. tank furnace according to claim 1 dissolves burner control, it is characterized in that, the second setting flow ratio is also provided with in described control unit, in it, the proportion of natural gas is less than the proportion of natural gas in described setting flow ratio, when the proportion of natural gas in described actual ratio is greater than the proportion of natural gas in described second setting flow ratio but is less than the proportion of natural gas in described setting flow ratio, described control unit then sends instruction and opens alarm unit, otherwise, when the proportion of natural gas in described actual ratio is less than the proportion of natural gas in described second setting flow ratio, described alarm unit is not opened.
3. tank furnace according to claim 2 dissolves burner control, and it is characterized in that, described alarm unit is audible-visual annunciator.
4. tank furnace according to claim 1 dissolves burner control, it is characterized in that, in the comparison, when the proportion of natural gas equals the proportion of natural gas in described setting flow ratio, described control unit then sends the aperture that instruction starts to reduce described valve to described control unit.
5. tank furnace according to claim 4 dissolves burner control, it is characterized in that, the 3rd setting flow ratio is also provided with in described control unit, in it, the proportion of natural gas is greater than the proportion of natural gas in described setting flow ratio, when the proportion of natural gas in described actual ratio is greater than the proportion of natural gas in described 3rd setting flow ratio, described control unit then sends instruction and closes valve on described natural-gas transfer pipeline completely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510279434.4A CN104930541B (en) | 2015-05-27 | 2015-05-27 | Tank furnace dissolves burner control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510279434.4A CN104930541B (en) | 2015-05-27 | 2015-05-27 | Tank furnace dissolves burner control |
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| CN104930541A true CN104930541A (en) | 2015-09-23 |
| CN104930541B CN104930541B (en) | 2017-07-18 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6091135A (en) * | 1983-10-25 | 1985-05-22 | Matsushita Electric Ind Co Ltd | Controller of gas combustion |
| CN101182926A (en) * | 2007-12-14 | 2008-05-21 | 镇海石化工程有限责任公司 | Stove-fuel flow online control device and method thereof |
| CN101614405A (en) * | 2009-07-17 | 2009-12-30 | 苏州新长光热能科技有限公司 | The combustion control device of aluminium melting furnace |
| CN102353073A (en) * | 2011-08-02 | 2012-02-15 | 威海宝源电气有限公司 | Automatic control method for burner type industrial boiler and device for automatic control method |
| CN102654286A (en) * | 2012-05-18 | 2012-09-05 | 无锡龙山科技有限公司 | Intelligent dynamic combustion atmosphere controller |
| CN102748774A (en) * | 2012-07-17 | 2012-10-24 | 中昊晨光化工研究院有限公司 | Burning furnace, burning control method and burning control device |
| CN104266223A (en) * | 2014-09-28 | 2015-01-07 | 力聚热力设备科技有限公司 | Gas control device for controlling air-fuel ratio of burning through air flow meter |
| CN104748568A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Heating method and system based on steel rolling heating furnace |
-
2015
- 2015-05-27 CN CN201510279434.4A patent/CN104930541B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6091135A (en) * | 1983-10-25 | 1985-05-22 | Matsushita Electric Ind Co Ltd | Controller of gas combustion |
| CN101182926A (en) * | 2007-12-14 | 2008-05-21 | 镇海石化工程有限责任公司 | Stove-fuel flow online control device and method thereof |
| CN101614405A (en) * | 2009-07-17 | 2009-12-30 | 苏州新长光热能科技有限公司 | The combustion control device of aluminium melting furnace |
| CN102353073A (en) * | 2011-08-02 | 2012-02-15 | 威海宝源电气有限公司 | Automatic control method for burner type industrial boiler and device for automatic control method |
| CN102654286A (en) * | 2012-05-18 | 2012-09-05 | 无锡龙山科技有限公司 | Intelligent dynamic combustion atmosphere controller |
| CN102748774A (en) * | 2012-07-17 | 2012-10-24 | 中昊晨光化工研究院有限公司 | Burning furnace, burning control method and burning control device |
| CN104266223A (en) * | 2014-09-28 | 2015-01-07 | 力聚热力设备科技有限公司 | Gas control device for controlling air-fuel ratio of burning through air flow meter |
| CN104748568A (en) * | 2015-04-03 | 2015-07-01 | 首钢总公司 | Heating method and system based on steel rolling heating furnace |
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| CN104930541B (en) | 2017-07-18 |
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