CN201202688Y - Mining explosion-proof axial flow fan - Google Patents
Mining explosion-proof axial flow fan Download PDFInfo
- Publication number
- CN201202688Y CN201202688Y CNU2008200774197U CN200820077419U CN201202688Y CN 201202688 Y CN201202688 Y CN 201202688Y CN U2008200774197 U CNU2008200774197 U CN U2008200774197U CN 200820077419 U CN200820077419 U CN 200820077419U CN 201202688 Y CN201202688 Y CN 201202688Y
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- fan
- blower fan
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- impeller
- explosion
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Abstract
Disclosed is an explosion-proof axial flow fan used in mining, relating to mining fans. Currently, the fans used in coal mine wells, tunnels and mines are small in wind volume, low in wind pressure, with noise at about d B(A)110 and the highest efficiency at about 65%, which can not satisfy the ventilation request of drilling and mining operations with large section, long distance and high resistance. The explosion-proof axial flow fan is axially connected with a current collector, a primary fan, a secondary fan, a diffuser, a round-to-square tie-in, and a diffusion tower sequentially from a tunnel tie-in. A primary motor and a primary impeller of the primary fan are directly connected, and a secondary motor and a secondary impeller are directly connected; and the primary impeller and the secondary impeller are installed opposite to each other and rotate in opposite directions. The explosion-proof axial flow fan is efficient, energy-saving, large in volume, low in noise, smooth in operation and simple in structure and is convenient to install and repair.
Description
Technical field
The utility model belongs to field of fluid machinery, relates generally to mine fan.
Background technique
At present, most of still old series product such as the ventilator that use in China's coal-mine down-hole, tunnel, mine etc., air quantity, blast is on the low side, and noise is at dB (A) about 110, the total head peak efficiency is about 65%, can not satisfy the air-conditioning requirement of big section, long distance, high-drag mining work.The job site is in order to solve ventilator air quantity, problem that blast is on the low side, has to adopt after several the ventilators series connection scheme of parallel running again.This method of ventilation has increased construction link, has reduced system effectiveness, has strengthened cost of production, and very dangerous.
At present, both at home and abroad the main flow fan blade such as still adopts to design at the circular rector method.Its shortcoming is: dynamic and static blade twist and hub ratio, cascade solidity, the isoparametric matching of impeller diameter are relative relatively poor; Do not consider the influence of gas viscosity, blower pressure is relatively low, and reynolds' number is less; Do not consider the loss that airflow breakaway is brought theoretically, and only be to remedy from improving aspects such as blower fan flow channel shape, roughness.
The traditional preparation process of ventilating vane is to adopt the forging and pressing distortion to make, and its shortcoming is: after the high temperature cooling, blade produces distortion, is difficult to guarantee the accuracy of blade physical parameter and the stability of operation thereof.
Summary of the invention
Advantages such as the purpose of this utility model is the shortcoming that is to overcome prior art, and a kind of mine anti-explosion axial fan is provided, and it has, and efficient, energy-conservation, capacity is big, low noise, operate steadily and simple in structure, and installation, maintenance is convenient.
Technical problem to be solved in the utility model is realized by following technological scheme:
A kind of mine anti-explosion axial fan, from the tunnel joint shaft to being connected with in turn: slip ring, one-level blower fan, secondary blower fan, diffuser, circle become square joint, retention tower, it is characterized in that: the one-level motor of described one-level blower fan directly is connected with the one-level impeller, the secondary motor of secondary blower fan directly is connected with sencond stage impeller, and the one-level impeller is relative with sencond stage impeller to be installed, and presses the opposite direction rotation.
Be provided with the compound silencer of outsourcing between described circle change square joint and the retention tower.
Described one-level blower fan, secondary blower fan are installed in the closed chamber of air duct central authorities, and fan blade is card hub formula to be fixed.
Described fan blade adopts curvedly plunders the design of combination quadrature technique and with the no-spark safety type cast aluminium alloy manufacturing that rubs.
The utility model compared with prior art owing to adopt the two-stage blower fan to revolving structure, impeller and motor directly connect, blade card hub formula is fixed, can be according to the required operating mode of ventilation network, the adjustment blade angle.Be furnished with diffuser and new-type streamlined retention tower that steel plate is made simultaneously, can change the part dynamic pressure of blower fan exit flow into static pressure, improve the static pressure efficiency of blower fan.The impeller of blower fan and rotating part all carry out quiet, dynamic balance calibration by NBS before installation, make the blower fan held stationary that is in operation, and do not produce vibration, and vibration noise is decreased.The blower fan inverted ventilation that can reverse, the inverted ventilation amount can reach more than 60% of positive air quantity, thereby has saved the inverted ventilation system, makes computer room structure simple, takes up an area of to reduce, and has reduced mounting cost significantly.Blower fan also is provided with the compound silencer of outsourcing, noise can be dropped to below the 80dB (A).Particularly blade has adopted the three-dimensional twisted curved combination orthogonal design technology of plunderring, adopt the method for lumped parameter optimal control theory, take all factors into consideration incremental effect, on the basis of the pressure gradient balance scheme of determining accurate orthogonal direction, the optimum of the dynamic and static blade of optimal design distortion rule is important technological parameters such as optimum " flow pattern ", best hub ratio, leaf grating optimal consistency and best impeller diameter on the whole.Adopt two-dimentional Fife to even up the method for equal N-S equation and distributed parameter control theory, determine the best rule that loads of leaf grating aerofoil profile.Adopt complete three-dimensional Fife to even up the orthogonal geometry of equal N-S equation solution spoon of blade, pneumatic quadrature criterion and correlated condition, determine that the best curved amount of plunderring distributes.Adopt the computer simulation test of CAD plane Aided Design and three-dimensional stereo model and optimize preparation process.Measurement of coordinates result by to various region of interest constantly revises, and improves aeroperformance and efficient.Blade adopts friction no-spark safety type cast aluminum alloy material to make, and has guaranteed not produce spark in the fan operation, has strengthened explosion-proof performance.Thereby, the utlity model has simple in structurely, advantage such as noise is low, and it is reliable to operate steadily is installed and easy to maintenance, efficient, energy-conservation.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
As shown in Figure 1, 2, a kind of mine anti-explosion axial fan, from the tunnel joint shaft to being connected with in turn: slip ring 1, one-level blower fan 2, secondary blower fan 3, diffuser 4, circle become square joint 5, retention tower 7, the one-level motor 2-1 of described one-level blower fan 2 directly is connected with one-level impeller 2-2, the secondary motor 3-1 of secondary blower fan 3 directly is connected with sencond stage impeller 3-2, and one-level impeller 2-2 is relative with sencond stage impeller 3-2 to be installed, and presses the opposite direction rotation.
Be provided with the compound silencer 6 of outsourcing between described circle change square joint 5 and the retention tower 7.
Described one-level blower fan 2, secondary blower fan 3 are installed in the closed chamber of air duct central authorities, and fan blade 8 is card hub formula to be fixed.
Described fan blade 8 adopts curvedly plunders the design of combination quadrature technique and with the no-spark safety type cast aluminium alloy manufacturing that rubs.
The base that described slip ring 1, one-level blower fan 2, secondary blower fan 3, diffuser 4, circle become square joint 5, compound silencer 6, retention tower 7 is provided with support roller 9, contacts with the track of presetting 10, can promote vertically on track 10.
Claims (5)
1, a kind of mine anti-explosion axial fan, from the tunnel joint shaft to be connected with slip ring (1), one-level blower fan (2), secondary blower fan (3), diffuser (4) in turn, circle becomes square joint (5), retention tower (7), it is characterized in that: the one-level motor (2-1) of described one-level blower fan (2) and one-level impeller (2-2) directly connect, the secondary motor (3-1) and the sencond stage impeller (3-2) of secondary blower fan (3) directly connect, and the opposite direction rotation is pressed in the relative installation with sencond stage impeller (3-2) of one-level impeller (2-2).
2, according to the described mine anti-explosion axial fan of claim 1, it is characterized in that: be provided with the compound silencer of outsourcing (6) between described circle change square joint (5) and the retention tower (7).
3, according to the described mine anti-explosion axial fan of claim 1, it is characterized in that: the base that described slip ring (1), one-level blower fan (2), secondary blower fan (3), diffuser (4), circle become square joint (5), compound silencer (6), retention tower (7) is provided with support roller (9), contacts with the track of presetting (10).
4, according to the described mine anti-explosion axial fan of claim 1, it is characterized in that: described one-level blower fan (2), secondary blower fan (3) are installed in the closed chamber of air duct central authorities, and fan blade (8) is card hub formula to be fixed.
5, according to the described mine anti-explosion axial fan of claim 4, it is characterized in that: described fan blade (8) adopts curvedly plunders the design of combination quadrature technique and with the no-spark safety type cast aluminium alloy manufacturing that rubs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200774197U CN201202688Y (en) | 2008-05-30 | 2008-05-30 | Mining explosion-proof axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200774197U CN201202688Y (en) | 2008-05-30 | 2008-05-30 | Mining explosion-proof axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202688Y true CN201202688Y (en) | 2009-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200774197U Expired - Lifetime CN201202688Y (en) | 2008-05-30 | 2008-05-30 | Mining explosion-proof axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202688Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345623A (en) * | 2011-07-20 | 2012-02-08 | 浙江义乌星耀风机有限公司 | Coal gas axial flow fan provided with anti-explosion stator structure and manufacturing method thereof |
| CN102705267A (en) * | 2012-06-29 | 2012-10-03 | 湖南科技大学 | Mine axial flow fan diffusion core barrel and optimizing and resistance reducing design method thereof |
| CN103967816A (en) * | 2014-05-20 | 2014-08-06 | 江苏远中电机股份有限公司 | Explosion-proof axial-flow type local fan |
| CN104329089A (en) * | 2014-11-30 | 2015-02-04 | 姬志强 | Dust removal fan for heading machine |
| CN105257599A (en) * | 2015-10-14 | 2016-01-20 | 灌阳县鸿运矿山设备有限公司 | Mine ventilator |
| CN110131186A (en) * | 2019-05-20 | 2019-08-16 | 河南省鑫豫风机有限公司 | Administer the ventilation equipment of haze |
-
2008
- 2008-05-30 CN CNU2008200774197U patent/CN201202688Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345623A (en) * | 2011-07-20 | 2012-02-08 | 浙江义乌星耀风机有限公司 | Coal gas axial flow fan provided with anti-explosion stator structure and manufacturing method thereof |
| CN102705267A (en) * | 2012-06-29 | 2012-10-03 | 湖南科技大学 | Mine axial flow fan diffusion core barrel and optimizing and resistance reducing design method thereof |
| CN103967816A (en) * | 2014-05-20 | 2014-08-06 | 江苏远中电机股份有限公司 | Explosion-proof axial-flow type local fan |
| CN104329089A (en) * | 2014-11-30 | 2015-02-04 | 姬志强 | Dust removal fan for heading machine |
| CN105257599A (en) * | 2015-10-14 | 2016-01-20 | 灌阳县鸿运矿山设备有限公司 | Mine ventilator |
| CN110131186A (en) * | 2019-05-20 | 2019-08-16 | 河南省鑫豫风机有限公司 | Administer the ventilation equipment of haze |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANXI ANRUI FAN ELECTRIC CO., LTD. Free format text: FORMER NAME: SHANXI YUNCHENG ANRUI ENERGY SAVING BLOWER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 044402 Shanxi Xiaxian Head Industrial Park No. 001 Patentee after: SHANXI ANRUI FAN ELECTRIC CO., LTD. Address before: 044402 Shanxi Xiaxian Head Industrial Park No. 001 Patentee before: Shanxi Yuncheng Anrui Energy Saving Blower Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 044402 Shanxi Xiaxian Head Industrial Park No. 001 Patentee after: Shanxi Province, an electric fan Limited by Share Ltd Address before: 044402 Shanxi Xiaxian Head Industrial Park No. 001 Patentee before: SHANXI ANRUI FAN ELECTRIC CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090304 |