CN201297834Y - Negative pressure control device for internal-combustion electric furnace - Google Patents
Negative pressure control device for internal-combustion electric furnace Download PDFInfo
- Publication number
- CN201297834Y CN201297834Y CNU200820137934XU CN200820137934U CN201297834Y CN 201297834 Y CN201297834 Y CN 201297834Y CN U200820137934X U CNU200820137934X U CN U200820137934XU CN 200820137934 U CN200820137934 U CN 200820137934U CN 201297834 Y CN201297834 Y CN 201297834Y
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- China
- Prior art keywords
- electric furnace
- air
- exhaust pipe
- negative pressure
- combustion electric
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- 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.)
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Abstract
The utility model relates to a negative pressure control device for an internal-combustion electric furnace. A direct exhaust valve is arranged on a fume exhaust pipe of the internal-combustion electric furnace. One side of the air exhaust pipe is communicated with a draft fan through an air channel. An air cooler is communicated with the draft channel between the exhaust pipe and the draft fan. A water cooling bushing is arranged on the draft channel between the air cooler and the fume exhaust pipe. A coarse air valve is arranged on the draft channel between a cooler and the fume exhaust pipe. The utility model solves the deficiency in the prior art, and has the advantage that the pressure in the electric furnace can be relieved in time.
Description
Technical field
The utility model relates to a kind of excessive control device of internal combustion electric furnace negative pressure that is used to prevent.
Background technology
The internal combustion electric furnace burns the furnace gas that produces and discharges by smoke exhaust pipe, and individual inline valve is arranged on the smoke exhaust pipe, can be according to the size of stove internal gas pressure controlling opening of valve.When inline valve is opened fully, if the speed that this moment, furnace gas escaped is unable to catch up with the speed that furnace gas produces, certainly will cause the stove internal gas pressure excessive, influence the normal operation of electric furnace, even can cause serious consequence such as the material that collapses.Also useful at present air-introduced machine is directly taken out inner flue gas of the stove, but this method can not unload the furnace pressure of unexpected generation, and high-temperature furnace gas can damage wind channel and air-introduced machine.
The utility model content
The utility model has been designed and developed out a kind of negative pressure control apparatus of the internal combustion electric furnace that can in time the electric furnace internal pressure be unloaded at the deficiencies in the prior art.
The utility model is achieved through the following technical solutions:
A kind of negative pressure control apparatus of internal combustion electric furnace includes on the smoke exhaust pipe of internal combustion electric furnace and is provided with inline valve, and blast pipe one side is connected with air-introduced machine by a ventilating duct, on the wind channel between described blast pipe and the air-introduced machine, is communicated with air cooler.
A kind of negative pressure control apparatus of internal combustion electric furnace is provided with water cold sleeve on wind channel between described air cooler and the smoke exhaust pipe.
A kind of negative pressure control apparatus of internal combustion electric furnace is provided with thick air valve on wind channel between described air cooler and the smoke exhaust pipe.
Internal combustion electric furnace furnace gas enters into aerial cooler inside by the pipeline that the outside is with water cooling tube, and the effect of this water cold sleeve is for to high-temperature furnace gas cooling (reducing to 600 ° from 900 ° approximately), prevents from the thick air valve or the air-introduced machine that connect are later burnt out.The effect of thick air valve is can be according to the aperture size of furnace pressure control valve.Connected an air-introduced machine behind the air cooler, can (2000Pa) constantly to the air cooler exhausting, make its inner 2000Pa of formation negative pressure, thereby keep internal combustion electric furnace stove internal gas pressure stable according to the air cooler pressure of setting.
Description of drawings
Accompanying drawing is this apparatus structure schematic diagram.
The specific embodiment
Shown in accompanying drawing.The utility model includes on the smoke exhaust pipe 2 of internal combustion electric furnace 6 and is provided with inline valve 1, and blast pipe 2 one sides are connected with air-introduced machine 7 by a ventilating duct, on the wind channel between blast pipe 2 and the air-introduced machine 7, is communicated with air cooler 5.On wind channel, be provided with thick air valve 4 and water cold sleeve 3 between air cooler 5 and the smoke exhaust pipe 2.Internal combustion electric furnace 6 furnace gases enter into air cooler 5 inside by the pipeline that the outside is with water cold sleeve 3, and the effect of this water cold sleeve 3 is for to high-temperature furnace gas cooling (reducing to 600 ° from 900 ° approximately), prevents from thick air valve 4 that connects later or air-introduced machine 7 are burnt out.The effect of thick air valve 4 is can be according to the aperture size of furnace pressure control valve.Connected an air-introduced machine 7 behind the air cooler 5, can be according to air cooler 5 pressure of setting (2000Pa) constantly to air cooler 5 exhausting, make its inner 2000Pa of formation negative pressure, under the situation that this moment, air-introduced machine 7 drove, the aperture of regulating thick air valve 4 according to the electric furnace internal pressure of setting, pressure in the control internal combustion electric furnace 6 be-1PA+/-1, the pressure that thick air valve 4 when big can respond fast and stablize in the stove by air cooler 5 if the electric furnace internal pressure fluctuates, thus maintenance internal combustion electric furnace 6 stove internal gas pressures are stablized.
Claims (3)
1, a kind of negative pressure control apparatus of internal combustion electric furnace, include on the smoke exhaust pipe of internal combustion electric furnace and be provided with inline valve, blast pipe one side is connected with air-introduced machine by a ventilating duct, it is characterized in that being communicated with air cooler on the wind channel between described blast pipe and the air-introduced machine.
2, the negative pressure control apparatus of a kind of internal combustion electric furnace according to claim 1 is characterized in that being provided with between described air cooler and the smoke exhaust pipe water cold sleeve on wind channel.
3, the negative pressure control apparatus of a kind of internal combustion electric furnace according to claim 1 and 2 is characterized in that being provided with between described air cooler and the smoke exhaust pipe thick air valve on wind channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820137934XU CN201297834Y (en) | 2008-11-10 | 2008-11-10 | Negative pressure control device for internal-combustion electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820137934XU CN201297834Y (en) | 2008-11-10 | 2008-11-10 | Negative pressure control device for internal-combustion electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201297834Y true CN201297834Y (en) | 2009-08-26 |
Family
ID=41043815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820137934XU Expired - Fee Related CN201297834Y (en) | 2008-11-10 | 2008-11-10 | Negative pressure control device for internal-combustion electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201297834Y (en) |
-
2008
- 2008-11-10 CN CNU200820137934XU patent/CN201297834Y/en not_active Expired - Fee Related
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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 |
Granted publication date: 20090826 Termination date: 20151110 |
|
| EXPY | Termination of patent right or utility model |