CN208040774U - A kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink - Google Patents
A kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink Download PDFInfo
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- CN208040774U CN208040774U CN201820262171.5U CN201820262171U CN208040774U CN 208040774 U CN208040774 U CN 208040774U CN 201820262171 U CN201820262171 U CN 201820262171U CN 208040774 U CN208040774 U CN 208040774U
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- heat
- insulating
- sealing
- fan
- smoke exhaust
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Abstract
The utility model is related to a kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sinks, belong to cold rolling production equipment technology.Device includes heat-insulating and sealing cover and cooling gas conduit（14）, heat-insulating and sealing cover is mounted on the outside of smoke exhaust fan babinet, is fitted close between the two；Heat-insulating and sealing cover cover body is equipped with through-hole（11）, cooling gas conduit（14）With through-hole（11）It is connected.The utility model is simple in structure, and upper and lower partition patterns are easily installed, dismantle and repair.Purging by being passed through cooling gas nitrogen acts on, and reduces the temperature of fan shaft.Prevent the high-temperature gas in fan box excessive by the gap between fan box and fan shaft, reduce the temperature difference between bearing block ontology and fan shaft, the generation of condensed water in bearing fan can be effectively eliminated, bearing burnt is reduced, extends bearing service life.
Description
Technical field
The utility model is related to a kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sinks, belong to cold rolling production and set
Standby technical field.
Background technology
It generates a large amount of high-temperature flue gas when bell-type annealing unit heat to be discharged by smoke exhaust fan, fan shaft is by high-temperature gas
It influences temperature to increase, be had the gap between fan box and fan shaft, high-temperature flue gas overflows from gap, continues heating blower and turns
Axis is in fan box outer portion, and fan shaft temperature is excessively high to cause bearing block center temperature to increase, and bearing block is water cooling side
Formula, it is cold and hot staggeredly, moisture in hot-air condense to the cold in bearing block inner wall to be formed condensed water and is mixed into lubricating oil, and bearing burning is caused
Damage, causes smoke exhaust fan failure, influences heating time and annealing cycle, and then influence product quality.Meanwhile maintenance of fan causes
A large amount of wastes that labour cost and spare part take.Fan shaft temperature will be reduced by preventing bearing block inner wall condensed water from generating, for this purpose, anxious
A kind of cold rolling hood type annealing smoke exhaust fan shaft heat-insulating and sealing heat sink need to be developed.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of cold rolling hood type annealing smoke exhaust fan shaft is heat-insulated close
Heat sink is sealed, prevents fan shaft from by high-temperature flue gas being influenced temperature excessively high, avoids generating condensed water inside bearing block, cause axis
Hold scaling loss.
The utility model adopts the following technical solution：
A kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink, including heat-insulating and sealing cover and cooling gas are led
Pipe, heat-insulating and sealing cover are mounted on the outside of smoke exhaust fan babinet, are fitted close between the two；Heat-insulating and sealing cover cover body is equipped with through-hole,
Cooling gas conduit is connected with through-hole.
Cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink as described above, heat-insulating and sealing cover are split type knot
Structure is made of heat-insulating and sealing upper cover, heat-insulating and sealing lower cover.
Cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink as described above, outer silk pipe nipple, outer silk are welded in through hole
Pipe nipple connects quick connector, and the other end of quick connector is connect with cooling gas conduit.
The beneficial effects of the utility model are as follows：
The utility model is simple in structure, is easily installed, dismantles and repairs.Purging by being passed through cooling gas nitrogen is made
With reducing the temperature of fan shaft.The high-temperature gas in fan box is prevented to pass through the seam between fan box and fan shaft
Gap is excessive, reduces the temperature difference between bearing block ontology and fan shaft, can effectively eliminate condensed water in bearing fan
It generates, reduces bearing burnt, extend bearing service life.
Description of the drawings
It is attached that FIG. 1 is a schematic structural view of the utility model；
Attached drawing 2 is the utility model structure sectional view；
Attached drawing 3 is the utility model in-site installation schematic diagram.
In the accompanying drawings：1 motor, 2 shaft couplings, 3 fan shafts, 4 bearing blocks, 5 bearing blocks, 6 cooling water pipes, 7 heat-insulating and sealings,
8 fan box, the gap of 9 fan box and fan shaft, 10 bolts hole, 11 through-holes, 12 outer pipe nipple, 13 quick connectors, 14
Cooling gas conduit, 15 heat-insulating and sealing upper covers, 16 heat-insulating and sealing lower covers, 17 bolts, 18, nut.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in attached drawing 1,2,3, a kind of smoke exhaust fan heat insulation sealing device, including outer silk pipe nipple 12, quick connector 13,
Cooling gas conduit 14, heat-insulating and sealing upper cover 15, heat-insulating and sealing lower cover 16, bolt 17, nut 18.Heat-insulating and sealing upper cover 15, every
It heats seal lower cover 16 and uses common steel material, heat-insulating and sealing upper cover 15 and 16 surrounding of heat-insulating and sealing lower cover uniformly process bolt
A through-hole 11 is respectively processed in hole 10, heat-insulating and sealing upper cover 15 and heat-insulating and sealing lower cover 16, through-hole 11 external welding, one outer silk is short
Section 12, outer silk pipe nipple 12 connect quick connector 13, and quick connector 13 connects cooling gas conduit 14.Bolt 17 is welded on air box
On body 8, the utility model is mounted on by 8 outside of fan box by bolt hole 10 and nut 18.
During normal production, the temperature of fan shaft 3 can be reduced by the purging of nitrogen by nitrogen being led in cooling gas conduit 14
Degree, plays cooling effect；Heat-insulating and sealing upper cover 15, heat-insulating and sealing lower cover 16 and fan box 8, the formation of fan shaft 3 simultaneously
One is full of nitrogen compared with enclosure space, inside, plays the role of sealing, prevents high at the gap 9 of fan box and fan shaft
Warm flue gas is excessive.
Using the utility model, the temperature when 5 center of bearing block passes through of fan shaft 3 can be made to be reduced to 80-90 DEG C, reduced
Temperature difference between 5 ontology of bearing block and fan shaft 3 avoids bearing block inner wall and generates condensed water, while fan shaft
Temperature reduces, and the heat for passing to bearing in bearing block is reduced, and reduces bearing operating temperatures, extends bearing service life.
Claims (3)
- The smoke exhaust fan heat-insulating and sealing heat sink 1. a kind of cold rolling hood type is annealed, it is characterised in that including heat-insulating and sealing cover and cooling Gas conduit（14）, heat-insulating and sealing cover is mounted on the outside of smoke exhaust fan babinet, is fitted close between the two；On heat-insulating and sealing cover cover body Equipped with through-hole（11）, cooling gas conduit（14）With through-hole（11）It is connected.
- The smoke exhaust fan heat-insulating and sealing heat sink 2. cold rolling hood type as described in claim 1 is annealed, it is characterised in that heat-insulated close Sealing cover is split structure, by heat-insulating and sealing upper cover（15）, heat-insulating and sealing lower cover（16）Composition.
- The smoke exhaust fan heat-insulating and sealing heat sink 3. cold rolling hood type as described in claim 1 is annealed, it is characterised in that through-hole（11） Weld outer silk pipe nipple in place（12）, outer silk pipe nipple（12）Connect quick connector（13）, quick connector（13）The other end and cooling air Body canal（14）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262171.5U CN208040774U (en) | 2018-02-22 | 2018-02-22 | A kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820262171.5U CN208040774U (en) | 2018-02-22 | 2018-02-22 | A kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040774U true CN208040774U (en) | 2018-11-02 |
Family
ID=63949469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820262171.5U Active CN208040774U (en) | 2018-02-22 | 2018-02-22 | A kind of cold rolling hood type annealing smoke exhaust fan heat-insulating and sealing heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040774U (en) |
-
2018
- 2018-02-22 CN CN201820262171.5U patent/CN208040774U/en active Active
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