CN201526497U - Gas sealing chamber for a hot gas circulation blower - Google Patents
Gas sealing chamber for a hot gas circulation blower Download PDFInfo
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- CN201526497U CN201526497U CN2009201988785U CN200920198878U CN201526497U CN 201526497 U CN201526497 U CN 201526497U CN 2009201988785 U CN2009201988785 U CN 2009201988785U CN 200920198878 U CN200920198878 U CN 200920198878U CN 201526497 U CN201526497 U CN 201526497U
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- gas
- chamber
- sealing chamber
- circulating fan
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Abstract
The utility model relates to a gas sealing chamber for a hot gas circulation blower, belonging to the iron and steel manufacture technical field, especially used in industrial furnaces of cold-rolling steel, steel belt, wire, copper base alloy and aluminum platinum alloy. The gas sealing chamber is arranged on a transmission main axle of the hot gas circulation blower and the outer side is wrapped by a shell and mounted between a cooling wind wheel and an impeller, characterized in that: the gas sealing chamber comprises a dry gas sealing chamber, a gas cooling chamber, a sealing chamber module and a carbon sealing ring, wherein the dry gas sealing chamber is connected with the gas cooling chamber; the carbon sealing ring is arranged on the two ends of the dry gas sealing chamber and the sealing chamber module surrounds the outer side of the dry gas sealing chamber. The gas sealing chamber has a reasonable structure, uses the advanced dry-gas sealing technology, combines the hydrodynamics and thermodynamics principles and effectively protects the electric machine in normal operation for a long time. The hot gas circulation blower completely substitutes the import blower fan.
Description
Technical field:
The utility model relates to a kind of gas seal chamber that is used on the high-temperature gas circulating fan, belongs to iron and steel and makes the field, on industrial furnaces such as cold rolled sheet, steel band, wire rod, copper base alloy and aluminium platinum alloy.
Background technique:
The process engineering innovation of iron and steel enterprise is to be based upon on the technological innovation basis of industrial furnace, and the high-temperature gas circulating fan is the critical piece of modernized industrial stove.Forcing the furnace gas orientation to circulate by it, strengthen heat exchange, thereby improve temperature homogeneity, is to improve heat treated article quality, the key equipment in shortening heat processing time.At present, domestic this type of blower fan adopts following dual mode to reach its purpose, a kind of is to adopt grease lubrication or oil mist lubrication bearing, again the bearing support of water circulation system cooling bearing casing is arranged, and main shaft is connected with the motor shaft coupling or the belt connection, makes the motor stow away from heat; Another kind is that the mechanical sealing system and the water cooling circulatory system are housed in the motor front cover, and the circulation by water has reduced the transmission of furnace heat to motor, has reduced the temperature rise of motor, has improved the working life of motor.This two series products has the following disadvantages: complex structure, auxiliary facility is many, volume is big, function substantially also can reach, but use, safeguard, maintain cumbersome, manufacture cost is also high, in case and seal failure, leakage will produce substantial breaking-up to stove body and labor and materials, therefore be difficult to design employing on up-to-date modernized large scale industry stove.And from this type high temp blower fan of external import as producing fault, generally reach engineering time more than six months, and formality numerous and diverse, cost an arm and a leg, wasted a large amount of manpowers, financial resources, directly threaten ordinary production.
The model utility content:
The utility model provides a kind of gas seal chamber that is used on the high-temperature gas circulating fan to solve above-mentioned deficiency of the prior art.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: this gas seal chamber is positioned on the transmission main shaft of high-temperature gas circulating fan, the outside is surrounded by casing, be installed between cooling wind wheel and the impeller, the gas seal chamber comprises dry gas seals chamber, gas cooling chamber, closed chamber assembly and carbon seal ring, wherein the dry gas seals chamber is connected with gas cooling chamber, the two ends of dry gas seals chamber are located in carbon seal ring, and the closed chamber assembly is enclosed in the outside of dry gas seals chamber.Furnace high-temperature is passed to motor through transmission main shaft, utilizes the gas seal chamber can effectively hinder heat transmission and cooling transmission shaft.
Dry gas seals of the present utility model chamber is between closed chamber assembly and transmission main shaft, and a side is connected with the cooling wind wheel, and opposite side is connected with gas cooling chamber.
Dispose the elastic structure that can make carbon seal ring and transmission main shaft press close to and maintain reasonable clearance mutually in the carbon seal ring of the present utility model, can produce quantitative gas and leak.
Gas cooling chamber of the present utility model is between casing thermal insulation layer and transmission main shaft, and a side is connected with impeller, and a side is connected with the dry gas seals chamber.
The material of cooling wind wheel of the present utility model is an aluminum, can effectively distribute the main shaft waste heat, guarantees motor normal long-play under Applicable temperature.
The blade of impeller of the present utility model adopts back bended plate type blade, presses the centrifugal blower pneumatic design, reduces thermal distortion.
Transmission main shaft of the present utility model is a hollow structure, thereby is guaranteeing effectively to reduce heat transfer area under the prerequisite of intensity, has also reduced the thermal distortion of transmission shaft simultaneously.
The utility model compared with prior art; have the following advantages: rational in infrastructure; the dry gas seals technology of uses advanced; in conjunction with fluid mechanics, thermodynamic principle; take the gas seal chamber effectively to hinder the main shaft type of cooling that heat is transmitted and cooling transmission shaft, the effective dissipate excess heat of aluminium matter cooling wind wheel etc. combine; adopt hollow main shaft to reduce heat transmission, can protect the long-time normal operation of motor effectively.Adopt high-temperature gas circulating fan of the present utility model to compare favourably with the import blower fan, complete energy import substitution blower fan, broken the situation that external product monopolizes domestic high temperature circulation blower fan staple market, after it realizes commercial application, will be for country save a large amount of foreign exchanges, and can play the effect of update at aspects such as design, installation, use, maintainings to homemade blower fan.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Comprising: dry gas seals chamber 1, gas cooling chamber 2, closed chamber assembly 3, carbon seal ring 4, casing thermal insulation layer 5, transmission main shaft 6, cooling wind wheel 7, impeller 8.
Embodiment:
Referring to Fig. 1, dry gas seals chamber 1 is to be outside equipped with at transmission main shaft 6 to comprise a seal space that is connected with the blanket gas source of the gas, two ends are provided with carbon seal ring 4, in carbon seal ring 4, dispose the elastic structure that can make carbon seal ring 4 and transmission main shaft 6 press close to and maintain reasonable clearance mutually, produce quantitative gas and leak.Gas cooling chamber 2 is 1 gas seal of leaking and cool off the cylindrical outer surface of transmission main shaft 6 from the dry gas seals chamber, thereby enlarged the using scope of dry gas seals, helps simplifying the difficulty of installation procedure and mounting technique, improved reliability of products.
The effect of gas seal is that the blanket gas that will have certain pressure, temperature injects dry gas seals chamber 1, and medium is to external leakage in the prevention machine.In working order down, the stove of certain pressure enters dry gas seals chamber 1 with nitrogen, make and form malleation in the dry gas seals chamber 1, produce quantitatively leakage through unique self-compensation type carbon seal ring 4, last row's part cooling cooling wind wheel 7, following row's part is under volume expansion situation suddenly, kinetic energy is converted to heat energy, enter gas cooling chamber 2, and since gas viscosity under the effect of transmission main shaft 6 with the asynchronous rotation of axle, hinder the thermoconvection in the space, and, (annotate: replenish in a certain amount of nitrogen furnace from the extrusion of transmission main shaft lower end with the speed of 2～3m/min along with gas leakage increases increased pressure, it is annealing furnace, oven keeps furnace air purity necessity), enter in the stove, thereby will seal, cooling effect extends to the distal-most end of blower fan, has also effectively utilized the length of stove with blower fan insulation section.
Claims (7)
1. gas seal chamber that is used on the high-temperature gas circulating fan, be positioned on the transmission main shaft of high-temperature gas circulating fan, the outside is surrounded by casing, be installed between cooling wind wheel and the impeller, it is characterized in that: this gas seal chamber comprises dry gas seals chamber, gas cooling chamber, closed chamber assembly and carbon seal ring, wherein the dry gas seals chamber is connected with gas cooling chamber, and carbon seal ring is arranged in the two ends of dry gas seals chamber, and the closed chamber assembly is enclosed in the outside of dry gas seals chamber.
2. the gas seal chamber that is used on the high-temperature gas circulating fan according to claim 1, it is characterized in that: described in the hermetic seal chamber between closed chamber assembly and transmission main shaft, one side is connected with the cooling wind wheel, and opposite side is connected with gas cooling chamber.
3. the gas seal chamber that is used on the high-temperature gas circulating fan according to claim 1 is characterized in that: dispose the elastic structure that can make carbon seal ring and transmission main shaft press close to and maintain reasonable clearance mutually in carbon seal ring.
4. the gas seal chamber that is used on the high-temperature gas circulating fan according to claim 1 is characterized in that: described gas cooling chamber is between casing thermal insulation layer and transmission main shaft, and a side is connected with impeller, and a side is connected with the dry gas seals chamber.
5. the gas seal chamber that is used on the high-temperature gas circulating fan according to claim 1 is characterized in that: the material of described cooling wind wheel is an aluminum.
6. the gas seal chamber that is used on the high-temperature gas circulating fan according to claim 1 is characterized in that: the blade of described impeller adopts back bended plate type blade.
7. the gas seal chamber that is used on the high-temperature gas circulating fan according to claim 1 is characterized in that: described transmission main shaft is a hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201988785U CN201526497U (en) | 2009-10-19 | 2009-10-19 | Gas sealing chamber for a hot gas circulation blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201988785U CN201526497U (en) | 2009-10-19 | 2009-10-19 | Gas sealing chamber for a hot gas circulation blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526497U true CN201526497U (en) | 2010-07-14 |
Family
ID=42517784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201988785U Expired - Fee Related CN201526497U (en) | 2009-10-19 | 2009-10-19 | Gas sealing chamber for a hot gas circulation blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526497U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251981A (en) * | 2011-07-27 | 2011-11-23 | 山东省临风鼓风机有限公司 | Vertical high-temperature fan |
| CN103850985A (en) * | 2014-03-20 | 2014-06-11 | 合肥通用机械研究院 | Fan adopting shell heat tracing and sealed buffer gas heating |
| CN108930657A (en) * | 2017-05-25 | 2018-12-04 | 张跃 | A kind of water-cooling fan |
-
2009
- 2009-10-19 CN CN2009201988785U patent/CN201526497U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251981A (en) * | 2011-07-27 | 2011-11-23 | 山东省临风鼓风机有限公司 | Vertical high-temperature fan |
| CN103850985A (en) * | 2014-03-20 | 2014-06-11 | 合肥通用机械研究院 | Fan adopting shell heat tracing and sealed buffer gas heating |
| CN103850985B (en) * | 2014-03-20 | 2016-08-17 | 合肥通用机械研究院 | A kind of blower fan using casing heat tracing and sealing cushion gas heating |
| CN108930657A (en) * | 2017-05-25 | 2018-12-04 | 张跃 | A kind of water-cooling fan |
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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: 20100714 Termination date: 20151019 |
|
| EXPY | Termination of patent right or utility model |