CN206830488U - High temperature circulation blower fan - Google Patents
High temperature circulation blower fan Download PDFInfo
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- CN206830488U CN206830488U CN201720782945.2U CN201720782945U CN206830488U CN 206830488 U CN206830488 U CN 206830488U CN 201720782945 U CN201720782945 U CN 201720782945U CN 206830488 U CN206830488 U CN 206830488U
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- high temperature
- thermal insulation
- blower fan
- support
- circulation blower
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Abstract
The utility model discloses a kind of high temperature circulation blower fan, is circulated for hot-air in high temperature furnace, and described high temperature circulation blower fan includes being fixed on the support on high temperature furnace and the motor on support；One end of the power transmission shaft of the motor is stretched into high temperature furnace, and end is provided with impeller；An end cap and the support of the motor are fixed, and cover internal is provided with a cooling chamber, and with the cooling medium entrance being passed through in the cooling chamber and cooling medium outlet；Described support bottom has the thermal insulation layer being wrapped in outside power transmission shaft, and sets a thermal insulation board in the bottom of thermal insulation layer.High temperature circulation blower fan of the present utility model, dedicated for hot air circulation in steel mill's high temperature furnace, motor is freezed using nitrogen, there is the advantages that stable, service life is long and maintenance is simple.
Description
Technical field
A kind of circulating fan is the utility model is related to, more particularly, to suitable for the high temperature circulation wind in steel mill's high temperature furnace
Machine.
Background technology
Used hot air circulation blower needs stable operation at high temperature in steel mill's high temperature furnace, follows hot-air in stove
Ring, Uniform Flow are heated, and heating needs certain pressure and enough air quantity.
High temperature circulation blower fan is useful in the high industrial furnace of operating temperature, the hot air circulation being exclusively used in steel mill's high temperature furnace,
Realize that hot-air is balanced and exchanges, furnace high-temperature air circulation in stove.
Because the operating temperature in high temperature furnace is high, sealing and cooling technique to high temperature circulation blower fan propose higher want
Ask, especially furnace heat passes to motor from impeller by power transmission shaft, causes motor overheating, influence the stable of motor and
Service life.
Utility model content
To adapt to the needs of steel mill's furnace high-temperature air circulation, the utility model provides a kind of high temperature circulation blower fan, specially
For hot air circulation in steel mill's high temperature furnace, motor is freezed using nitrogen, has stable, service life is long and safeguards simple
The advantages that.
Concrete technical scheme is as follows used by the utility model：
A kind of high temperature circulation blower fan, circulated for hot-air in high temperature furnace；
Described high temperature circulation blower fan includes being fixed on the support on high temperature furnace and the motor on support；
One end of the power transmission shaft of the motor is stretched into high temperature furnace, and end is provided with impeller；
An end cap and the support of the motor are fixed, and cover internal is provided with a cooling chamber, and has and be passed through the cooling chamber
Interior cooling medium entrance and cooling medium outlet；
Described support bottom has the thermal insulation layer being wrapped in outside power transmission shaft, and heat-insulated in the setting one of the bottom of thermal insulation layer
Plate.
In the utility model, cooling chamber is set in going out for motor in the end cap of shaft end, and passes through cooling medium entrance and cold
But media outlet is passed through cooling nitrogen and circulated, and isolation heat is transferred to motor internal from power transmission shaft, maintains motor operation steady
It is fixed, increase the service life.
It is preferred that employing nitrogen as cooling medium, in some environments, water can also be passed through in cooling chamber or oil is carried out
Cooling.
Further, it is the transmission of preferably isolation heat, the parcel thermal insulation layer of power transmission shaft and heat-insulated is set in support bottom
Plate, prevent the transmission of heat.
As preferable, the middle part of the end cap is axis hole, and internal cooling chamber is distributed around described axis hole, and described
A dividing plate is provided with cooling chamber, the both sides that cooling medium entrance and cooling medium outlet are distributed in dividing plate are followed to form cooling medium
Circulation moves.
For the technical program using the cooling chamber of annular, cooling contact area is big, has more preferable cooling effect to end cap.
Described cooling chamber can be monocyclic, or the polycyclic pipeline being sequentially communicated.
Include the assembled upper end cover and bottom end cover of sealing, the periphery tool of the upper end cover as preferable, described end cap
There is the ring flange mutually fixed with support, described cooling is formed after the cooling bath split set in the upper end cover and bottom end cover
Room.
End cap is put together by upper end cover and bottom end cover, and upper end cover is mutually fixed with support, is set in upper end cover and bottom end cover
By cooling bath, two cooling bath splits turn into the cooling chamber of annular.
As being provided with ceramic fiber paper sealing gasket between preferable, described ring flange and support.
Because support is arranged on outside high temperature furnace, to prevent the heat transfer of support to end cap, upper end cover ring flange with
Ceramic fiber paper sealing gasket is set between support.
Ceramic fiber paper is made up of selected alumina-silicate ceramic fibre cotton of primary raw material of wet therapy forming process, is applied to
Heat-insulated, insulation, sealing, electric insulation, sound-absorbing, filtering under hot environment etc..The production technology of ceramic fibre causes fiber
Distribute very evenly, thickness of paper degree and unit weight can be also strictly controlled.
In the utility model, the parameter of ceramic fiber paper sealing gasket is：Class temperature 1260, density 200kg/m3, specification
12000*600*2~3.
Material as preferable, described thermal insulation layer and thermal insulation board is ceramic fibre, and ceramics selected by thermal insulation board are fine
The class temperature of dimension is higher than thermal insulation layer.
Described thermal insulation board is ceramic beaverboard, and ceramic beaverboard is a kind of refractory material, also keeps good after the heating
Mechanical strength, the product compared with tapetum fibrosum, felt be rigidity and with support strength fibrous thermal product.
Ceramic beaverboard is in addition to corresponding bulk ceramic fiber cotton premium properties, and product quality is hard, toughness and intensity
It is excellent, there is excellent Resistance to wind Erosion.Heating do not expand, be light, be easy for construction, can any shear-bow, be kiln, pipeline
And the ideal energy saving material of other heat-preserving equipments.
Bottom plate of the ceramic beaverboard of bottom as support thermal insulation layer, has good structural strength, can be by thermal insulation layer
Cash pledge is abundant.Further, since furnace high-temperature is directly born, therefore use class Wen Genggao ceramics fine in bottom closer to high temperature furnace
Dimension.
Described thermal insulation layer is ceramic fiber blanket, and the number of plies is two to five layers.
As preferable, the bottom of the support is provided with the fixation for extending downward and through the thermal insulation layer and thermal insulation board
Bar, end sleeve are provided with the pad for compressing the thermal insulation layer and thermal insulation board.
As preferable, setting sequentially passes through the blowdown pipe that the support, thermal insulation layer and thermal insulation board are passed through in stove, for
Air is passed through in stove.
For ease of the installation and carrying of the high temperature circulation blower fan, as preferable, hoisting ring is provided with the support.
The graphite packing sealing ring being set in outside power transmission shaft is provided with as preferable, in the end cap.Graphite packing is main
It is to be obtained by the graphite line of the enhancings such as various reinforcing fibers, wire for raw material Seiko braiding, suitable under high-temperature and high-pressure conditions
Dynamic sealing.Ensure the sealing effectiveness of motor with this, suitable for the higher working environment of seal request.
High temperature circulation blower fan of the present utility model is dedicated for hot air circulation in steel mill's high temperature furnace, using graphite packing_seal
Ring and nitrogen refrigeration, operating temperature is up to 900 DEG C；It is widely used in that seal request is tight, the hot-air in the high industrial furnace of operating temperature
Balanced and exchange, furnace high-temperature air circulation, progressively instead of import high temperature circulation blower fan, reduces equipment cost, have fortune
Row is stable, service life length, the advantages that easy maintenance.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model high temperature circulating fan；
Fig. 2 is the sealing sectional view of power transmission shaft；
Fig. 3 is the sectional view of end cap.
Embodiment
The utility model is described in detail with reference to embodiment and accompanying drawing, but the utility model is not limited to that.
High temperature circulation blower fan as shown in Figures 1 to 3, including the support 8 that is fixedly mounted with high temperature furnace and on support 8
Motor 1, one end of the power transmission shaft 3 of motor 1 stretched into high temperature furnace, and end is provided with impeller 4, and the impeller 4 can be die casting axle
Flow impeller or receded disk impeller.
Two hoisting rings 21 piled are set on support 8, is easy to carry and installs.
Motor 1 is fixed by the end cap 2 at shaft with support, and the inside of end cap 2 is provided with a cooling chamber, and has and be passed through cooling
Indoor cooling medium entrance 5 and cooling medium outlet 6.Be passed through the cooling medium of circulation in cooling chamber, for example, nitrogen, water cooling or
Oil cooling medium, power transmission shaft 3 in the middle part of cooling chamber by passing.
The middle part of end cap 2 is axis hole, and internal cooling chamber is distributed around axis hole, and is provided with a dividing plate 20 in cooling chamber, cold
But the both sides that medium inlet 5 and cooling medium outlet 6 are distributed in dividing plate are circulated with forming cooling medium.
In the present embodiment, end cap 2 includes the assembled upper end cover 16 and bottom end cover 17 of sealing, and the periphery of upper end cover 16 has method
Blue disk 19, the middle part of support 8 is fixedly mounted on by bolt 10, ceramic fiber paper sealing gasket is provided between ring flange 19 and support 8
9, prevent heat from passing to motor by support 8.Formed after the split of cooling bath 18 is provided with upper end cover 16 and bottom end cover 17
Cooling chamber.Cooling nitrogen is passed through using cooling medium entrance 5 and cooling medium outlet 6 to be circulated, and completely cuts off heat from power transmission shaft
Motor internal is transferred to, maintains motor operation stable, increases the service life.
In the present embodiment, the parameter of ceramic fiber paper sealing gasket is：Class temperature 1260, density 200kg/m3, specification 12000*
600*2~3.
The bottom of support 8 has the thermal insulation layer 11 being wrapped in outside power transmission shaft 3, and sets a thermal insulation board in the bottom of thermal insulation layer 11
12.Thermal insulation layer 11 and thermal insulation board 12 are respectively provided with the effect for preventing heat transfer to motor.The bottom of support 8 is provided with and extended downwardly simultaneously
Through the fix bar 14 of thermal insulation layer 11 and thermal insulation board 12, end sleeve is provided with the pad 13 for compressing thermal insulation board 12.
The material of thermal insulation layer 11 and thermal insulation board 12 is ceramic fibre, the class temperature of ceramic fibre selected by thermal insulation board be higher than every
Thermosphere.
In this example, thermal insulation board is ceramic beaverboard, and ceramic beaverboard is a kind of refractory material, also keeps good after the heating
Good mechanical strength, the product are rigidity compared with tapetum fibrosum, felt and have the fibrous thermal product of support strength.
Thermal insulation board is high-purity ceramic fiber fireguard：Class temperature 1400, density 350kg/m3, specification 1000*600*40~50；
Product quality is hard, toughness and good strength, has excellent Resistance to wind Erosion.The thermal insulation board 12 of bottom is as support thermal insulation layer
Bottom plate, there is good structural strength, can be abundant by thermal insulation layer cash pledge.Further, since bottom is closer to high temperature furnace, directly
Furnace high-temperature is born, therefore using class Wen Genggao ceramic fibre.
Thermal insulation layer 11 uses ceramic fiber blanket, middle two to five layers of blanket.Standard ceramic tapetum fibrosum：Class temperature 1260, density
128kg/m3, specification 3600*610*50.
In the present embodiment, setting sequentially passes through the blowdown pipe 7 that support 8, thermal insulation layer 11 and thermal insulation board 12 are passed through in stove, tonifying Qi
The top of pipe 7 is provided with seal cap, for being passed through air into stove.
The graphite packing sealing ring 15 being set in outside power transmission shaft 3 is provided with end cap 2, is met dynamic close under high-temperature and high-pressure conditions
Envelope, ensure the sealing effectiveness of motor with this, suitable for the higher working environment of seal request.
Preferable implementation example of the present utility model is the foregoing is only, is not limited to the utility model, it is all in this reality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (9)
1. a kind of high temperature circulation blower fan, circulated for hot-air in high temperature furnace, it is characterised in that：
Described high temperature circulation blower fan includes being fixed on the support on high temperature furnace and the motor on support；
One end of the power transmission shaft of the motor is stretched into high temperature furnace, and end is provided with impeller；
An end cap and the support of the motor are fixed, and cover internal is provided with a cooling chamber, and has and be passed through in the cooling chamber
Cooling medium entrance and cooling medium outlet；
Described support bottom has the thermal insulation layer being wrapped in outside power transmission shaft, and sets a thermal insulation board in the bottom of thermal insulation layer.
2. high temperature circulation blower fan as claimed in claim 1, it is characterised in that：
The middle part of the end cap is axis hole, and internal cooling chamber is distributed around described axis hole, and one is provided with the cooling chamber
The both sides that dividing plate, cooling medium entrance and cooling medium outlet are distributed in dividing plate are circulated with forming cooling medium.
3. high temperature circulation blower fan as claimed in claim 2, it is characterised in that：
Described end cap includes the assembled upper end cover and bottom end cover of sealing, and the periphery of the upper end cover has what is mutually fixed with support
Ring flange, described cooling chamber is formed after the interior cooling bath split set of the upper end cover and bottom end cover.
4. high temperature circulation blower fan as claimed in claim 3, it is characterised in that：
Ceramic fiber paper sealing gasket is provided between described ring flange and support.
5. high temperature circulation blower fan as claimed in claim 1, it is characterised in that：
Described thermal insulation layer and the material of thermal insulation board are ceramic fibre, and the class temperature of ceramic fibre selected by thermal insulation board is higher than heat-insulated
Layer.
6. high temperature circulation blower fan as claimed in claim 5, it is characterised in that：
The bottom of the support is provided with the fix bar for extending downward and through the thermal insulation layer and thermal insulation board, and end sleeve, which is provided with, to be compressed
The pad of the thermal insulation layer and thermal insulation board.
7. high temperature circulation blower fan as claimed in claim 1, it is characterised in that：
Setting sequentially passes through the blowdown pipe that the support, thermal insulation layer and thermal insulation board are passed through in stove.
8. high temperature circulation blower fan as claimed in claim 1, it is characterised in that：
Hoisting ring is provided with the support.
9. high temperature circulation blower fan as claimed in claim 1, it is characterised in that：
The graphite packing sealing ring being set in outside power transmission shaft is provided with the end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782945.2U CN206830488U (en) | 2017-06-30 | 2017-06-30 | High temperature circulation blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782945.2U CN206830488U (en) | 2017-06-30 | 2017-06-30 | High temperature circulation blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206830488U true CN206830488U (en) | 2018-01-02 |
Family
ID=60778597
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720782945.2U Active CN206830488U (en) | 2017-06-30 | 2017-06-30 | High temperature circulation blower fan |
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| Country | Link |
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| CN (1) | CN206830488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417848A (en) * | 2021-07-01 | 2021-09-21 | 哈尔滨电气动力装备有限公司 | Heat shield with ceramic fiber structure |
-
2017
- 2017-06-30 CN CN201720782945.2U patent/CN206830488U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417848A (en) * | 2021-07-01 | 2021-09-21 | 哈尔滨电气动力装备有限公司 | Heat shield with ceramic fiber structure |
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