CN202281247U - Combustion-supporting air continuous adjusting device of industrial heating furnace - Google Patents
Combustion-supporting air continuous adjusting device of industrial heating furnace Download PDFInfo
- Publication number
- CN202281247U CN202281247U CN2011203791302U CN201120379130U CN202281247U CN 202281247 U CN202281247 U CN 202281247U CN 2011203791302 U CN2011203791302 U CN 2011203791302U CN 201120379130 U CN201120379130 U CN 201120379130U CN 202281247 U CN202281247 U CN 202281247U
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- air
- heating furnace
- combustion
- industrial heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
The utility model relates to an air adjusting device in the field of iron and steel metallurgy and discloses a combustion-supporting air continuous adjusting device of an industrial heating furnace. The combustion-supporting air continuous adjusting device of the industrial heating furnace comprises a blower, wherein the blower is provided with a frequency converter in a connecting manner; and the inlet of the blower is provided with an adjusting valve. The outlet of the blower is provided with a pressure transducer; the adjusting valve, the frequency converter and the pressure transducer are connected to a PID (Proportional-Integral-Differential) controller; and the adjusting valve, the frequency converter, the pressure transducer and the PID controller compose a PID continuous automatic closed-loop adjusting loop. According to the combustion-supporting air continuous adjusting device of the industrial heating furnace, disclosed by the utility model, while normal operation of a fan is guaranteed, air quantity and air pressure are adjusted by adjusting the valve at the inlet of the fan and the frequency conversion of the frequency converter, requirements of small air quantity needed by production are satisfied, content of residual oxygen in smoke is reduced, air and fuel proportion is optimized, thus the purposes of saving energy and reducing consumption are realized.
Description
Technical field
The utility model relates to the conditioner in Ferrous Metallurgy field, a kind of specifically industrial heating furnace combustion air continuous regulating mechanism.
Background technology
Reasonably the wind supply quantity of control industrial heating furnace can be optimized empty combustion proportioning; Reasonably empty right proportioning not only can improve the efficiency of combustion of fuel; Effectively reduce gas consumption, reduce heat loss due to exhaust gas, but also can rationally control the residual oxygen content of flue gas; Reduce the oxidization burning loss of steel billet, improve the lumber recovery of steel billet.In the prior art; The wind supply quantity of industrial heating furnace is generally regulated through the frequency converter that is located on the air blast, regulates the revolution of air blast through frequency converter, the control wind supply quantity; But exist following two shortcoming: ⑴ when required wind supply quantity is minimum, lean on the frequency converter frequency conversion to regulate and to meet the demands; When wind supply quantity hour, the frequency converter frequency conversion is lower, this kind state long-play can cause certain harmful effect to blower motor.
The utility model content
The utility model technical problem to be solved is, overcomes the shortcoming of prior art, proposes a kind of industrial heating furnace combustion air continuous regulating mechanism, can satisfy the requirement of producing required little air quantity, reduces the residual oxygen content of flue gas, optimizes empty combustion proportioning, and is energy-saving and cost-reducing.
The technical scheme that the utility model solves above technical problem is:
Industrial heating furnace combustion air continuous regulating mechanism comprises air blast, on air blast, is connected with frequency converter, is provided with control valve at the inlet of air blast.
The technical scheme that the utility model further limits is:
Aforesaid industrial heating furnace combustion air continuous regulating mechanism; Outlet at air blast is provided with pressure transmitter; Control valve, frequency converter and pressure transmitter all are connected to a PID controller, and control valve, frequency converter, pressure transmitter and PID controller constitute the continuous automated closed-loop regulating loop of PID.
The beneficial effect of the utility model is: the utility model is under the situation that guarantees the normal operation of blower fan; Regulate air quantity and blast through regulating fans entrance valve and frequency converter frequency conversion; Satisfy the requirement of producing required little air quantity; Reduce the residual oxygen content of flue gas, optimize empty combustion proportioning, thereby reach purpose energy-conservation, consumption reduction.The utility model can reasonably be controlled the heating furnace wind supply quantity, effectively reduces gas consumption and the heating furnace oxidization burning loss at the stove blank, the residual oxygen content of original flue gas is dropped to by 9% present 5%, but fuel saving.
Description of drawings
Fig. 1 is the connection sketch map of the utility model.
The specific embodiment
Embodiment 1
Present embodiment proposes a kind of industrial heating furnace combustion air continuous regulating mechanism, connects as shown in Figure 1ly, comprises air blast 1, on air blast 1, is connected with frequency converter 2, is provided with control valve 3 at the inlet of air blast 1.Outlet at air blast 1 is provided with pressure transmitter 4, and control valve 3, frequency converter 2 and pressure transmitter 4 all are connected to a PID controller 5, and control valve 3, frequency converter 2, pressure transmitter 4 and PID controller 5 constitute the continuous automated closed-loop regulating loop of PID.
During concrete operations, when needing to increase air quantity, regulate the blower inlet valve earlier, can't meet the needs of production, regulate the frequency converter frequency conversion again if inlet valve reaches full scale; In the time of need reducing air quantity, regulate the frequency converter frequency conversion earlier, can't satisfy the needed air quantity of production, regulate the blower inlet valve again if the lower limit that allows is closed in the frequency converter frequency conversion.Blower inlet valve and frequency converter all constitute the continuous automated closed-loop regulating loop of PID with blower export pressure.
The utility model is stablized blower export pressure through regulating inlet control valve and frequency converter VFC blower fan revolution; According to the fluid machinery mechanics; Under the situation certain at medium, that caliber is certain, blast (dynamic pressure) H and flow velocity n square are directly proportional, and flow Q and flow velocity n are directly proportional; So just can effectively control the blower export air quantity through control blower export pressure, can control minimum air quantity 6500m
3/ h.
Except that the foregoing description, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (2)
1. industrial heating furnace combustion air continuous regulating mechanism comprises air blast, on said air blast, is connected with frequency converter, it is characterized in that: the inlet at said air blast is provided with control valve.
2. industrial heating furnace combustion air continuous regulating mechanism as claimed in claim 1; It is characterized in that: the outlet at said air blast is provided with pressure transmitter; Said control valve, frequency converter and pressure transmitter all are connected to a PID controller, and said control valve, frequency converter, pressure transmitter and PID controller constitute the continuous automated closed-loop regulating loop of PID.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203791302U CN202281247U (en) | 2011-09-30 | 2011-09-30 | Combustion-supporting air continuous adjusting device of industrial heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203791302U CN202281247U (en) | 2011-09-30 | 2011-09-30 | Combustion-supporting air continuous adjusting device of industrial heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202281247U true CN202281247U (en) | 2012-06-20 |
Family
ID=46227414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203791302U Expired - Fee Related CN202281247U (en) | 2011-09-30 | 2011-09-30 | Combustion-supporting air continuous adjusting device of industrial heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202281247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996486A (en) * | 2012-12-17 | 2013-03-27 | 济南华阳炭素有限公司 | Fan control device |
| CN104110696A (en) * | 2013-04-16 | 2014-10-22 | 沈阳铝镁设计研究院有限公司 | Combustion air automatic adjusting method for pot type furnace |
-
2011
- 2011-09-30 CN CN2011203791302U patent/CN202281247U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996486A (en) * | 2012-12-17 | 2013-03-27 | 济南华阳炭素有限公司 | Fan control device |
| CN104110696A (en) * | 2013-04-16 | 2014-10-22 | 沈阳铝镁设计研究院有限公司 | Combustion air automatic adjusting method for pot type furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101046296A (en) | Comprehensive energy-saving method for boiler or industrial furnace and kiln | |
| CN212482146U (en) | Waste gas waste heat utilization device of mineral powder vertical mill system | |
| CN202066336U (en) | Oxygen-enriched combustion-supporting burner for rotary kiln | |
| CN202734585U (en) | Pulse-combustion furnace pressure controlling device | |
| CN202281247U (en) | Combustion-supporting air continuous adjusting device of industrial heating furnace | |
| CN102353073A (en) | Automatic control method for burner type industrial boiler and device for automatic control method | |
| CN103486870A (en) | Smoke waste heat refrigeration and heating supply system of industrial kiln stove | |
| CN104805247B (en) | A kind of energy-conservation regulation and control method of blast funnace hot blast stove combustion fan | |
| CN202066007U (en) | Coal gas-oxygen burning lance device with oxygen and compressed air capable of supporting combustion simultaneously | |
| CN101634518B (en) | Calcining and production method of rotary kiln | |
| CN104214793A (en) | Continuous adjusting device for combustion air | |
| CN106363161B (en) | Efficient ladle baking facilities | |
| CN107166428B (en) | Layer combustion boiler flue gas oxygen content control system based on flue gas recirculation | |
| CN201715548U (en) | Intelligent oxygen content optimizing and regulating device for coal-fired industrial boiler | |
| CN202852866U (en) | Induced air control system | |
| CN203421712U (en) | Double-bed synchronous gas supply structure of updraught type fixed bed gasification furnaces | |
| CN103939880A (en) | Self-adaption intelligent control method for biomass gasification thermal energy conversation system | |
| CN200968602Y (en) | Combusting device | |
| CN103353123A (en) | Synchronous double-bed air feeding method and structure for updraught type fixed bed gasifiers | |
| CN202216415U (en) | Moving grate type energy-saving constant temperature automatic control device for furnace | |
| CN102278821A (en) | Moving-grate-type boiler energy-saving constant-temperature automatic control method and device | |
| CN203010565U (en) | Waste heat-afterburning and no-waste heat parallel type steam production device | |
| CN106370008A (en) | Energy-saving dynamic regulating and control method for oxygen-rich sintering | |
| CN207279689U (en) | A kind of grate firing boiler flue gas oxygen content control system based on flue gas recirculation | |
| CN206018595U (en) | Chain grate boiler compound combustion control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20200930 |