CN2123633U - Axial-flow ventilator for mine - Google Patents
Axial-flow ventilator for mine Download PDFInfo
- Publication number
- CN2123633U CN2123633U CN 91214752 CN91214752U CN2123633U CN 2123633 U CN2123633 U CN 2123633U CN 91214752 CN91214752 CN 91214752 CN 91214752 U CN91214752 U CN 91214752U CN 2123633 U CN2123633 U CN 2123633U
- Authority
- CN
- China
- Prior art keywords
- blade
- cylindrical shell
- mine
- lead
- fan
- 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.)
- Granted
Links
- 238000005065 mining Methods 0.000 claims abstract description 7
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 6
- 239000010951 brass Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 abstract description 8
- 238000004880 explosion Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a mining axial fan comprises parts such as collector, motor cooling duct, baffle, motor, plumbous brass ring, barrel, impeller, blade, wheel hub, frame, wind channel. The anti-explosion air conditioner has the advantages of anti-explosion performance, adjustable blades, large air quantity adjusting range, compact structure, small volume, safety and reliability in performance and the like due to the adoption of the embedded lead brass ring structure. It is suitable for ventilation of main fan in mine in medium and small local coal mine, and also for ventilation of operation site containing combustible gas and other industrial departments.
Description
The utility model is applicable to that the mine main fan of medium and small local mine ventilates.Also can be used for containing the operation place of inflammable gas and the ventilation of other industrial department.
In recent years, though the ventilator kind that is used under the coal mine is a lot, aspect applicability, can't meet the needs of production.The external Type B series portable blower that has Poland to produce that uses, it is to adopt thermoset coating to solve the mechanical friction spark problems of ventilating fan that there is a kind of ventilating fan in the Soviet Union.But huger, the high price of these ventilators, and be not suitable for the characteristics in the medium and small colliery of China.Though domestic Beipiao City mining machinery plant is arranged is the KH59-12 propeller fan that Beipiao City east rises colliery two Jingyan County systems production, but this class blower fan is owing to be external motor, boundary dimension is big, inapplicable middle or small local mine, and other axial fans that are used for medium and small mine still can not prevent the generation of mechanical friction spark in mechanism, serious threat Safety of Coal Mine Production and workman's life safety.Mine ventilation mode at the medium and small local mine of present China mostly is exhaust ventilation greatly, and mine main fan adopts centrifugal fan more.If the axial fan with identical plane No. is compared with centrifugal fan, it is big that propeller fan has the adjustable air quantity regulation range that makes of blade, can satisfy the different production of the mine ventilation needs in period better; Also have compact structure, the less advantage of volume simultaneously.Thereby more shallow in mining depth, selecting axial fan in the simple relatively medium and small mine of ventilation network for use is more satisfactory as main fan.
The blade of domestic existing axial fan and cylindrical shell are to make with carbon steel or alloy aluminum, and blade and cylindrical shell gap are less.If blower fan is in operation, barrel distortion or leaf destruction make the blade of high speed rotating and cylindrical shell bump and produce the mechanical friction spark, may light gas and cause gas and dust explosion.Especially in relatively poor in technical equipment and the medium and small mine that the gas-monitoring means are not perfect, on safety, exist hidden danger.For this reason, developed a kind of mining propeller fan.
Performance index of the present utility model
Adjustable arbitrarily between 15 °～35 ° of the blade angles
Total head 480～770Pa
Flow 26612～65569m
3/ h
Air efficient 75～94%
Fan shaft power 4.6～15.6KW
Necessary electromotor power 7.5～18.5KW
Necessary electromotor rotating speed 1450～1470rPm
Explosion-proof form safe anti-explosion
Structural feature of the present utility model
Fig. 1 is the axial-flow blower form structure.Form by parts such as slip ring 1, electric motor cooling duct 2, deflector 3, motor 4, lead and yellow-collation copper ring 5, cylindrical shell 6, impeller 7, blade 8, wheel hub 9, support 10, air channels 11.Slip ring 1 is installed on the blower fan inlet end and electric motor cooling duct 2 is integrally welded, connects with air channel 11 with flange, bolt etc. in the air inlet side.Also use flange, bolt etc. to connect at the side neck body 6 of giving vent to anger with air channel 11, constitute flow blower casing.The effect of slip ring 1 is to make blower fan air-flow when air inlet even, improves fan efficiency.When electric motor cooling duct 2 can guarantee motor 4 operations, be in all the time in the fresh air air curtain, can isolate with the dirty wind in the air channel 11, to improve the Security of motor 4 operations.Deflector 3 is fixed by bolts to and plays the impact loss that reduces gas in the air channel 11 on the support 10, improves the efficient of ventilator.Motor 4 is fixed by bolts on the support 10 and provides power and the supporting use of ventilator for ventilator.Supporting motor 4 can adopt 7.5,11,15, the anti-explosion motor of 18.5KW, to adapt to not fan shaft power needs simultaneously of blade angle.Impeller 7 is made of 12 airfoil twisted blades 8 and wheel hub 9.The angle of blade can be adjustable arbitrarily between 15 °～35 °, produces the needs of ventilation in period in difference to adapt to mine.The size of blade angle and air quantity, blower fan total head are proportional.Impeller 7 is the direct connection structure with motor 4.Support 10 is a separation structure with cylindrical shell, and its advantage can be adjusted the gap between impeller 7, blade 8 and the cylindrical shell 6.
Fig. 2 is a phase embedding lead brass ring structure.By being 6 among cylindrical shell 12(Fig. 1), be 5 among lead and yellow-collation copper ring 13(Fig. 1), be 8 among blade 14(Fig. 1) and copper rivet 15 constitute.Lead and yellow-collation copper ring 13 places between cylindrical shell 12 and the blade 14, is fixed on copper rivet 15 on the inwall of cylindrical shell 12.The material that binds of blade 14 adopts No. 10 steel, in case uppermost leaf sheet and copper ring friction and produce spark.
Characteristics of the present utility model adopt this phase embedding lead brass ring structure exactly.The friction spark energy that the advantage of this structure is produced when being blade 8 and cylindrical shell 6 bumps is minimum, and energy is little to cause the damp coal-dust explosibility to being unlikely to light gas.
Working principle of the present utility model
This mining propeller fan is with the motor source that is used as power.When motor 4 work, impeller 7 is rotated, and makes the latticed wing that forms between its blade 8 and the blade 8 also make circular movement.The gas that blade heads on is squeezed, and static pressure increases.Meanwhile, the gas-static of vacuum side of blade reduces, though latticed wing is subjected to differential pressure action, but impeller 7 is subjected to the restriction of motor 4 bearings, can not move vertically, so the passage that the clearance space of the high pressure draught that blade heads between blade 8 and blade 8 forms flows out; The back side low pressure zone draws gas of blade 8 flows into, and is continuous normal working thereby make air-flow pass latticed wing.
Advantage of the present utility model
It is adjustable that this propeller fan has blade, and the air quantity regulation range is big, compact structure, advantage such as volume is less, adopts phase embedding lead brass ring structure, and performance is safe and reliable.
Claims (2)
1, the utility model is a kind of mining propeller fan, partly form by slip ring, electric motor cooling duct, deflector, motor, lead and yellow-collation copper ring, cylindrical shell, impeller, blade, wheel hub, support, air channel etc., it is characterized in that arrangements of current collector is integrally welded in blower fan inlet end and electric motor cooling duct, connect with the air channel with flange, bolt in the air inlet side.Also use flange, Bolt Connection cylindrical shell and air channel in the side of giving vent to anger, constitute flow blower casing.
2, by the described a kind of mining propeller fan of claim 1, it is characterized in that constituting phase embedding lead brass ring structure by parts such as cylindrical shell, lead and yellow-collation copper ring, blade, copper rivets, the lead and yellow-collation copper ring places between cylindrical shell and the blade, is fixed on copper rivet on the inwall of cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91214752 CN2123633U (en) | 1991-07-22 | 1991-07-22 | Axial-flow ventilator for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91214752 CN2123633U (en) | 1991-07-22 | 1991-07-22 | Axial-flow ventilator for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2123633U true CN2123633U (en) | 1992-12-02 |
Family
ID=4922915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91214752 Granted CN2123633U (en) | 1991-07-22 | 1991-07-22 | Axial-flow ventilator for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2123633U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395035C (en) * | 2006-04-13 | 2008-06-18 | 上海交通大学 | Centrifugal dust separator |
| CN102330700A (en) * | 2011-07-19 | 2012-01-25 | 平安电气股份有限公司 | Integrated external frequency conversion fan |
| CN103490547A (en) * | 2013-10-11 | 2014-01-01 | 江阴美森电气有限公司 | Easily-maintained anti-riot type variable-frequency speed regulation asynchronous motor |
| CN106593900A (en) * | 2016-12-06 | 2017-04-26 | 卢璐娇 | Synchronously-cooled axial flow fan |
-
1991
- 1991-07-22 CN CN 91214752 patent/CN2123633U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395035C (en) * | 2006-04-13 | 2008-06-18 | 上海交通大学 | Centrifugal dust separator |
| CN102330700A (en) * | 2011-07-19 | 2012-01-25 | 平安电气股份有限公司 | Integrated external frequency conversion fan |
| CN103490547A (en) * | 2013-10-11 | 2014-01-01 | 江阴美森电气有限公司 | Easily-maintained anti-riot type variable-frequency speed regulation asynchronous motor |
| CN106593900A (en) * | 2016-12-06 | 2017-04-26 | 卢璐娇 | Synchronously-cooled axial flow fan |
| CN106593900B (en) * | 2016-12-06 | 2019-01-25 | 卢璐娇 | The axial flow blower of synchronous heat dissipation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |