CN104912844A - Special cooling blower of integral bell-type furnace - Google Patents
Special cooling blower of integral bell-type furnace Download PDFInfo
- Publication number
- CN104912844A CN104912844A CN201510366227.2A CN201510366227A CN104912844A CN 104912844 A CN104912844 A CN 104912844A CN 201510366227 A CN201510366227 A CN 201510366227A CN 104912844 A CN104912844 A CN 104912844A
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- impeller
- motor
- type furnace
- cooling
- bell
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- 238000001816 cooling Methods 0.000 title claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a special cooling fan for an integral bell-type furnace, which comprises a shell, an air inlet, an impeller and a motor, wherein the air inlet is connected with the shell through a bolt, the impeller is arranged in a cavity in the shell, the impeller is a backward impeller and is formed by welding a front disc, blades, a rear disc and a shaft disc, a transmission shaft of the motor is in interference connection with the shaft disc, a thrust plate is arranged on the outer side end face of the shaft disc, and the thrust plate is connected with the center of the outer side end face of the transmission shaft through a backstop bolt. The invention can greatly improve the full-pressure efficiency of the fan and reduce the use amount of field electric energy.
Description
Technical field
The invention belongs to the technical field of cover type furnace cooling cover cooling, particularly relate to a kind of integrated type bell-type furnace cooling fan specialized.
Background technique
The cooling cover type of cooling of bell-type furnace is the cooling technology adopting convection current airduct and water smoke to replace, when cooling cover is placed on inner cover under soaking temperature (namely furnace charge is just by soaking), furnace charge is cooled to rapidly about 160 DEG C (focuses in coil of strip) under air cooling/water-cooled acting in conjunction, when cooling beginning, the cooling blower at cooling cover top is from high temperature inner cover bottom suction cool air, so just inner cover surface temperature is dropped to less than about 200 DEG C, thus the chilling produced when avoiding following Water spray impacts, inner cover is caused to occur cracking phenomena, the use of cooling blower can extend its working life, through the regular hour, (time remaining is according to the cool condition of reality, determined by temperature, be approximately 5 hours), cooling blower is turned off automatically, water spray projector system starts water spray, the heat of coil of strip inside utilize convection current by heat transfer to inner cover, heat is taken away rapidly by the current on inner cover, whole cooling procedure is carried out automatically.
The cooling blower of existing use, what substantially all adopt is overall structure, its shortcoming existed: 1, in order to improve cooling blower acting ability, blade generally adopts forward direction type blade, improve the ability that cooling blower overcomes resistance to a certain extent, but forward direction type Leaf Conductance refrigeration but fan efficiency is low, and on-the-spot power consumption increases, thus makes bell-type furnace operating cost increase; 2, cooling blower operational efficiency is low, causes the volume of cooling blower to increase, makes blower fan impeller in running bear centrifugal force bigger than normal, in the environment of blower fan at hot humid in addition, replaces variable-speed operation, causes the working life of blower fan short.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned Problems existing, provides a kind of integrated type bell-type furnace cooling fan specialized, improves the cooling effectiveness of blower fan, shortens cool time, reduces the consumption of electric energy, for bell-type furnace Effec-tive Function provides safeguard.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of integrated type bell-type furnace cooling fan specialized, comprise housing, intake grill, impeller and motor, described intake grill and motor are all connected with described housing by bolt, described impeller is installed in enclosure interior cavity, described impeller is by shroud, blade, hub disk, reel is welded, the transmission shaft of described motor is connected with described reel interference, it is characterized in that, described impeller is backward type impeller, described reel end face outside is provided with thrust plate, described thrust plate is connected by Dogbolt with the end face outside center of described transmission shaft.
By such scheme, described impeller outlet setting angle is 45 ° ~ 51 °.
By such scheme, the angle of described intake grill is 60 °.
By such scheme, the discharge area of described housing is 0.29m
2.
By such scheme, the transmission shaft of described motor and the surface of contact of described reel are provided with connecting key.
The invention has the beneficial effects as follows: 1, provide a kind of integrated type bell-type furnace cooling fan specialized, impeller changes backward type into by forward direction type, improves the efficiency of blower fan in running, greatly reduces the consumption of blower fan electric energy in running; 2, increase the angle of cooling blower intake grill, make air-flow enter impeller internal more stably, reduce blower interior eddy current loss, improve the total pressure efficiency of blower fan.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Wherein: 1. motor, 2. housing, 3. shroud, 4. blade, 5. hub disk, 6. reel, 7. thrust plate, 8. Dogbolt, 9. intake grill.
Embodiment
For understanding the present invention better, below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of integrated type bell-type furnace cooling fan specialized, comprise housing 2, intake grill 9, impeller and motor 1, intake grill is all connected with housing by bolt with motor, impeller is installed in enclosure interior cavity, impeller is by shroud 3, blade 4, hub disk 5, reel 6 is welded, the transmission shaft of motor is connected with reel interference, the transmission shaft of motor and the surface of contact of reel are provided with connecting key, reel end face outside is provided with thrust plate 7, thrust plate is connected by Dogbolt 8 with the end face outside center of transmission shaft, by the rotation of motor thus the rotation of impeller, utilize the centrifugal force that the rotation of impeller produces, thus the high-temperature gas in bell-type furnace is discharged, to reach the object of cooling inner cover.
Impeller is backward type impeller, existing cooling blower impeller outlet setting angle is generally 110 °, its object is mainly in order to increase the flowing velocity of gas, thus improve blower fan boosting capability, but the overall utilization efficiency of blower fan is lower, the exit installation angle degree of backward type impeller is 45 ° ~ 51 °, be preferably 48 °, although gas flow rates decreases, but the efficiency of blower fan obtains larger raising, reduce the consumption of bell-type furnace blower fan electric energy in running, make noise in fan operation there has also been remarkable decline; The entrance angle of existing cooling blower is generally 45 °, and by facts have proved the entrance angle of employing 60 °, cooling blower is more steady in air inlet, thus effectively decreases internal vortex loss, improves the utilization efficiency of cooling blower; Reduce the discharge area of cooling blower, the discharge area of existing cooling blower is generally 0.32m
2, the discharge area of cooling blower of the present invention is set to 0.29m
2, the more existing cooling blower discharge area of discharge area of cooling blower reduces 10%, thus compensate for the little shortcoming of backward type impeller airspeed preferably.
Working procedure of the present invention is: after cooling blower delivers to erecting bed with overall structure, utilize bolt, nut, packing ring is connected the intake grill of cooling blower to lock with cooling inner cover, when cooling cover put into by hot steel billet, steel billet is by after self air cooling/water-cooled, produce a large amount of water vapour and heat, start motor, run by motor driven impeller, take away a large amount of heats, the temperature of inner cover is made to be reduced to rapidly less than 200 DEG C, thus considerably increase the working life of inner cover, through the operation of cooling blower after a while, after bell-type furnace inner cover reaches set point of temperature, cooling blower will be turned off automatically, because this blower fan is often in static, speedup, at a high speed, reduction of speed, in the process of static alternately change, in cooling cover, gas temperature is higher in addition, water content is larger, by the invention of efficient fan, the cooling effect of blower fan can be improved preferably, greatly shorten the working time of cooling blower, reduce the operating cost of on-the-spot blower fan, reduce the diameter of blower fan simultaneously, reduce the centrifugal force that draught fan impeller bears, increase the working life of blower fan.
Claims (5)
1. an integrated type bell-type furnace cooling fan specialized, comprise housing, intake grill, impeller and motor, described intake grill and motor are all connected with described housing by bolt, described impeller is installed in enclosure interior cavity, described impeller is welded by shroud, blade, hub disk, reel, the transmission shaft of described motor is connected with described reel interference, it is characterized in that, described impeller is backward type impeller, described reel end face outside is provided with thrust plate, and described thrust plate is connected by Dogbolt with the end face outside center of described transmission shaft.
2. a kind of integrated type bell-type furnace cooling fan specialized according to claim 1, is characterized in that, described impeller outlet setting angle is 45 ° ~ 51 °.
3. a kind of integrated type bell-type furnace cooling fan specialized according to claim 1, is characterized in that, the angle of described intake grill is 60 °.
4. a kind of integrated type bell-type furnace cooling fan specialized according to claim 1, is characterized in that, the discharge area of described housing is 0.29m
2.
5. a kind of integrated type bell-type furnace cooling fan specialized according to claim 1, is characterized in that, the transmission shaft of described motor and the surface of contact of described reel are provided with connecting key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510366227.2A CN104912844A (en) | 2015-06-29 | 2015-06-29 | Special cooling blower of integral bell-type furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510366227.2A CN104912844A (en) | 2015-06-29 | 2015-06-29 | Special cooling blower of integral bell-type furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912844A true CN104912844A (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510366227.2A Pending CN104912844A (en) | 2015-06-29 | 2015-06-29 | Special cooling blower of integral bell-type furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN104912844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065297A (en) * | 2015-06-29 | 2015-11-18 | 中冶南方(武汉)威仕工业炉有限公司 | Special cooling fan for plug-in bell-type furnace |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6190125B1 (en) * | 1997-10-24 | 2001-02-20 | Showa Furyoko Kikai Kabushiki Kaisha | Suction flow preswirl control bypass structure for blowers |
| CN201953717U (en) * | 2011-02-24 | 2011-08-31 | 株洲联诚集团有限责任公司 | Cooling ventilator for traction motor of engineering maintenance vehicle |
| CN202707622U (en) * | 2012-08-06 | 2013-01-30 | 株洲联诚集团有限责任公司 | Double source system electric locomotive traction fan |
| CN203130555U (en) * | 2013-03-11 | 2013-08-14 | 株洲联诚集团有限责任公司 | Cooling ventilator for wind driven generator |
| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN103362860A (en) * | 2012-04-02 | 2013-10-23 | 珠海格力电器股份有限公司 | High-speed fluid dynamic machine, and rotor forming method and assembling method thereof |
| CN103527514A (en) * | 2013-10-29 | 2014-01-22 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan impeller for locomotive |
-
2015
- 2015-06-29 CN CN201510366227.2A patent/CN104912844A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6190125B1 (en) * | 1997-10-24 | 2001-02-20 | Showa Furyoko Kikai Kabushiki Kaisha | Suction flow preswirl control bypass structure for blowers |
| CN201953717U (en) * | 2011-02-24 | 2011-08-31 | 株洲联诚集团有限责任公司 | Cooling ventilator for traction motor of engineering maintenance vehicle |
| CN103362860A (en) * | 2012-04-02 | 2013-10-23 | 珠海格力电器股份有限公司 | High-speed fluid dynamic machine, and rotor forming method and assembling method thereof |
| CN202707622U (en) * | 2012-08-06 | 2013-01-30 | 株洲联诚集团有限责任公司 | Double source system electric locomotive traction fan |
| CN203130555U (en) * | 2013-03-11 | 2013-08-14 | 株洲联诚集团有限责任公司 | Cooling ventilator for wind driven generator |
| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN103527514A (en) * | 2013-10-29 | 2014-01-22 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan impeller for locomotive |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065297A (en) * | 2015-06-29 | 2015-11-18 | 中冶南方(武汉)威仕工业炉有限公司 | Special cooling fan for plug-in bell-type furnace |
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Application publication date: 20150916 |