CN104595215A - Axial-flow type main fan - Google Patents
Axial-flow type main fan Download PDFInfo
- Publication number
- CN104595215A CN104595215A CN201410705722.7A CN201410705722A CN104595215A CN 104595215 A CN104595215 A CN 104595215A CN 201410705722 A CN201410705722 A CN 201410705722A CN 104595215 A CN104595215 A CN 104595215A
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- CN
- China
- Prior art keywords
- impeller
- motor
- fan
- shaft
- middle chamber
- Prior art date
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an axial-flow type main fan which comprises a middle cavity, a spindle, a lower end bearing, a base, a fan box body, a supporting plate, a motor, a motor rotating shaft, a bearing support, an impeller, an impeller rotating shaft, an air inlet, an exhaust duct, a temperature sensor, an oil storage tank and an oil conveying tube. The axial-flow type main fan is characterized in that the supporting plate is arranged beneath the motor, the lower end of the spindle penetrates through the cavity, and the spindle and the base are connected with each other; the impeller is placed on one side of the motor, the impeller is arranged on the impeller rotating shaft, the oil conveying tube is arranged on the impeller rotating shaft, and the oil storage tank is arranged at the upper end of the oil conveying tube; the temperature sensor is arranged below the impeller, the exhaust duct is arranged on one side of the motor, the motor is connected with the middle cavity through the exhaust duct, the oil conveying tube is arranged on the impeller rotating shaft, and the oil storage tank is arranged at the upper end of the oil conveying tube. The axial-flow type main fan has the advantages of being simple in structure, convenient, practical, and capable of preventing the phenomenon that radiating can not be achieved in time due to friction of the impeller rotating shaft, so that potential safety hazards happen.
Description
Technical field
The present invention relates to blower fan field, particularly relate to a kind of axial main fan.
Background technique
At present, domestic common axial fan is made up of following structural member: impeller, main shaft, cooling fan blade, cast iron water-cooling bearing support, motor and motor support frame.Its working principle is: impeller is High Rotation Speed in High Temperature Furnaces, and heat insulating box intercepts furnace interior and divides heat conduction, main shaft is established on air-cooled, bearing support and establishes water-cooled to carry out cooling bearing, prevent because of the too high damage bearing of heat.But cast iron water-cooling bearing support volume is large, quality large, and bearing position installs water cooling plant, too increase energy loss, make troubles to the maintenance of client, management, under the higher handling situations of process stove dust loading, easily enter bearing with upward flow dust and cause bearing damage.Simultaneously also likely long-pending sand on impeller, and cause impeller unbalance, causes fan vibration, increases and can not dispel the heat in time due to impeller shaft friction and the potential safety hazard that causes.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned the deficiencies in the prior art, provides a kind of axial fan, has the feature of simple, the convenient practicality of structure, can prevent from can not dispelling the heat in time due to impeller shaft friction and the potential safety hazard caused.
Technological scheme of the present invention is: a kind of axial main fan, comprise: middle chamber, main shaft, bottom end bearing, base, fan box, dunnage, motor, motor rotary shaft, bearing spider, impeller, impeller shaft, wind inlet, exhaust duct, temperature transducer, fuel reserve tank and transport pipe, it is characterized in that: described main shaft is arranged at the intermediate portion of blower fan, main shaft upper end and bearing spider are interconnected, main shaft is through middle chamber, main shaft lower end and base are mutually permanently connected, described main shaft upper end is provided with bearing spider, bearing spider and main shaft are mutually permanently connected, described bottom end bearing is positioned at bottom middle chamber, described middle chamber is positioned at fan box, fan box side is provided with wind inlet, described middle chamber side is provided with motor, motor side is provided with impeller, impeller is arranged on impeller shaft, is provided with transport pipe above impeller shaft, and transport pipe upper end is provided with fuel reserve tank, temperature transducer is provided with below described impeller, described motor side is provided with exhaust duct, and motor is interconnected by exhaust duct and middle chamber, and motor lower end is provided with dunnage, dunnage and fan box are mutually permanently connected, and motor upper end is provided with motor rotary shaft.
Further, described motor lower end is provided with dunnage, and dunnage and fan box are mutually permanently connected.
Further, be provided with transport pipe above impeller shaft, transport pipe upper end is provided with fuel reserve tank, and the volume of fuel reserve tank is 2.5m
3.
Further, described impeller is positioned at motor side, and impeller is carbon steel or stainless steel.
Further, described temperature transducer is arranged at below impeller, and temperature transducer is contactless bimetallic strip sensor.
Further, described motor is arranged at middle chamber side, and motor is threephase asynchronous
Beneficial effect of the present invention is: a kind of axial main fan, comprise: middle chamber, main shaft, bottom end bearing, base, fan box, dunnage, motor, motor rotary shaft, bearing spider, impeller, impeller shaft, wind inlet, exhaust duct, temperature transducer, fuel reserve tank and transport pipe, it is characterized in that: described main shaft is arranged at the intermediate portion of blower fan, main shaft upper end and bearing spider are interconnected, main shaft is through middle chamber, main shaft lower end and base are mutually permanently connected, described main shaft upper end is provided with bearing spider, bearing spider and main shaft are mutually permanently connected, described bottom end bearing is positioned at bottom middle chamber, described middle chamber is positioned at fan box, fan box side is provided with wind inlet, described middle chamber side is provided with motor, motor is threephase asynchronous, has the advantages that structure is simple, ride quality is good, and can save various material, low price, decreases cost.Motor side is provided with impeller, avoids long-pending sand to destroy impeller balance, causes fan vibration, be applicable to the industrial heat treatment furnace that furnace gas dust loading is larger.Impeller adopts carbon steel or stainless steel, has higher intensity and toughness, thus can avoid the fatigue fracture phenomenon of impeller.Impeller is arranged on impeller shaft, is provided with transport pipe above impeller shaft, and transport pipe upper end is provided with fuel reserve tank; Be provided with temperature transducer below described impeller, temperature transducer is contactless bimetallic strip sensor, and the contactless bimetallic strip sensor measurement upper limit by the restriction of heat responsive element heatproof degree, does not thus limit the highest observable temperature in principle.For more than 1800 DEG C high temperature, main employing non-contact temperature measuring method.Along with the development of infrared technique, radiation temperature measurement is expanded to infrared rays by visible ray gradually, less than 700 DEG C until normal temperature adopts all, and resolution is very high.Described motor side is provided with exhaust duct, and motor is interconnected by exhaust duct and middle chamber, and motor lower end is provided with dunnage, and dunnage and fan box are mutually permanently connected, and motor upper end is provided with motor rotary shaft.The potential safety hazard that the present invention can prevent from can not dispelling the heat in time due to impeller shaft friction and cause.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1, fuel reserve tank 2, middle chamber 3, main shaft
4, bottom end bearing 5, base 6, fan box
7, dunnage 8, motor 9, impeller shaft
10, transport pipe 11, exhaust duct 12, motor rotary shaft
13, bearing spider 14, impeller 15, temperature transducer
16, wind inlet
Embodiment
Brief description is made below in conjunction with the embodiment of accompanying drawing to invention.
As shown in Figure 1, a kind of axial main fan, comprise: middle chamber 2, main shaft 3, bottom end bearing 4, base 5, fan box 6, dunnage 7, motor 8, motor rotary shaft 12, bearing spider 13, impeller 14, impeller shaft 9, wind inlet 16, exhaust duct 11, temperature transducer 15, fuel reserve tank 1 and transport pipe 10, it is characterized in that: described main shaft 3 is arranged at the intermediate portion of blower fan, main shaft 3 upper end and bearing spider 13 are interconnected, main shaft 3 is through middle chamber 2, main shaft 3 lower end and base 5 are mutually permanently connected, described main shaft 3 upper end is provided with bearing spider 13, bearing spider 13 and main shaft 3 are mutually permanently connected, described bottom end bearing 4 is positioned at bottom middle chamber 2, described middle chamber 2 is positioned at fan box 6, fan box 6 side is provided with wind inlet 16, described middle chamber 2 side is provided with motor 8, motor 8 side is provided with impeller 14, impeller 14 is arranged on impeller shaft 9, is provided with transport pipe 10 above impeller shaft 9, and transport pipe 10 upper end is provided with fuel reserve tank 1, be provided with temperature transducer 15 below described impeller 14, when impeller shaft 9 place temperature is higher, temperature transducer 15 sends signal, and fuel reserve tank 1 instills lubricant oil by transport pipe 10 to impeller shaft, described motor 8 side is provided with exhaust duct 11, and motor 8 is interconnected by exhaust duct 11 and middle chamber 2, and motor 8 lower end is provided with dunnage 7, and dunnage 7 and fan box 6 are mutually permanently connected, and motor 8 upper end is provided with motor rotary shaft 12, when the impeller 14 of axial main fan rotates, namely move with peripheral velocity.Be in the air-flow that blade heads on to be squeezed, static pressure increases; The gas-static of vacuum side of blade reduces simultaneously, pressure difference effect, but limits by bearing, can not travel forward, so the high pressure draught that blade heads on flows out, the gas of the low pressure zone draws leaf road inlet side of the wing back of the body flows into, and forms the continuous flow through exhaust duct 11.The feature of its distinguished and admirable flowing is: when impeller 14 rotates, and outflow is curled up in the cylndrical surface of the radiuses such as air-flow edge.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (6)
1. an axial main fan, comprise: middle chamber, main shaft, bottom end bearing, base, fan box, dunnage, motor, motor rotary shaft, bearing spider, impeller, impeller shaft, wind inlet, exhaust duct, temperature transducer, fuel reserve tank and transport pipe, it is characterized in that: described main shaft is arranged at the intermediate portion of blower fan, main shaft upper end and bearing spider are interconnected, main shaft is through middle chamber, main shaft lower end and base are mutually permanently connected, described main shaft upper end is provided with bearing spider, and bearing spider and main shaft are mutually permanently connected; Described bottom end bearing is positioned at bottom middle chamber, described middle chamber is positioned at fan box, fan box side is provided with wind inlet, described middle chamber side is provided with motor, motor side is provided with impeller, impeller is arranged on impeller shaft, is provided with transport pipe above impeller shaft, and transport pipe upper end is provided with fuel reserve tank; Temperature transducer is provided with below described impeller, described motor side is provided with exhaust duct, and motor is interconnected by exhaust duct and middle chamber, and motor lower end is provided with dunnage, dunnage and fan box are mutually permanently connected, and motor upper end is provided with motor rotary shaft.
2. according to a kind of axial main fan described in claim 1, it is characterized in that: described motor lower end is provided with dunnage, and dunnage and fan box are mutually permanently connected.
3. according to a kind of axial main fan described in claim 1, it is characterized in that: be provided with transport pipe above described impeller shaft, transport pipe upper end is provided with fuel reserve tank, and the volume of fuel reserve tank is 2.5m
3.
4. according to a kind of axial main fan described in claim 1, it is characterized in that: described impeller is positioned at motor side, impeller is carbon steel or stainless steel.
5. according to a kind of axial main fan described in claim 1, it is characterized in that: described temperature transducer is arranged at below impeller, temperature transducer is contactless bimetallic strip sensor.
6. according to a kind of axial main fan described in claim 1, it is characterized in that: described motor is arranged at middle chamber side, motor is threephase asynchronous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705722.7A CN104595215B (en) | 2014-11-27 | 2014-11-27 | Axial-flow type main fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705722.7A CN104595215B (en) | 2014-11-27 | 2014-11-27 | Axial-flow type main fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595215A true CN104595215A (en) | 2015-05-06 |
| CN104595215B CN104595215B (en) | 2017-02-22 |
Family
ID=53121189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410705722.7A Active CN104595215B (en) | 2014-11-27 | 2014-11-27 | Axial-flow type main fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595215B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB850115A (en) * | 1958-03-08 | 1960-09-28 | Engineering Arts Ltd | Improvements in or relating to cross ventilated axial flow fans |
| DE3543833A1 (en) * | 1984-12-12 | 1987-12-03 | Leithner Joachim | Roof ventilator |
| CN102251981A (en) * | 2011-07-27 | 2011-11-23 | 山东省临风鼓风机有限公司 | Vertical high-temperature fan |
| CN202811474U (en) * | 2012-07-20 | 2013-03-20 | 湖北省风机厂有限公司 | Oil-lubricated, air-cooled and water-cooled bearing box for fixed-blade adjustable axial-flow fan |
| CN203641045U (en) * | 2013-11-15 | 2014-06-11 | 天津尼特风机有限公司 | High-temperature resistant blower for furnace |
-
2014
- 2014-11-27 CN CN201410705722.7A patent/CN104595215B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB850115A (en) * | 1958-03-08 | 1960-09-28 | Engineering Arts Ltd | Improvements in or relating to cross ventilated axial flow fans |
| DE3543833A1 (en) * | 1984-12-12 | 1987-12-03 | Leithner Joachim | Roof ventilator |
| CN102251981A (en) * | 2011-07-27 | 2011-11-23 | 山东省临风鼓风机有限公司 | Vertical high-temperature fan |
| CN202811474U (en) * | 2012-07-20 | 2013-03-20 | 湖北省风机厂有限公司 | Oil-lubricated, air-cooled and water-cooled bearing box for fixed-blade adjustable axial-flow fan |
| CN203641045U (en) * | 2013-11-15 | 2014-06-11 | 天津尼特风机有限公司 | High-temperature resistant blower for furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104595215B (en) | 2017-02-22 |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20220829 Address after: 42-6-2, Langrun Garden, the intersection of Xingguang Branch Road and Hui'an Road, Zhongbei Town, Xiqing District, Tianjin 300000 Patentee after: Tianjin Xinbaisheng Technology Development Co.,Ltd. Address before: 300000 Fujin Road, Zhongbei Town, Xiqing District, Tianjin Patentee before: TIANJIN JINPENG ELECTROMECHANICAL EQUIPMENT CO.,LTD. |