CN107191389B - A kind of wear-resistant centrifugal blower - Google Patents
A kind of wear-resistant centrifugal blower Download PDFInfo
- Publication number
- CN107191389B CN107191389B CN201710484215.9A CN201710484215A CN107191389B CN 107191389 B CN107191389 B CN 107191389B CN 201710484215 A CN201710484215 A CN 201710484215A CN 107191389 B CN107191389 B CN 107191389B
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- China
- Prior art keywords
- abrasion
- impeller
- wear
- casing
- air inlet
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- 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
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4233—Fan casings with volutes extending mainly in axial or radially inward direction
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to blower fields, and in particular to a kind of wear-resistant centrifugal blower is equipped with abrasion-proof composite plate on the impeller, in casing including the motor that casing and the impeller being arranged in casing and driving impeller work.The beneficial effects of the present invention are: 1, since coke powder hardness is big, content is high, in the biggish place of blower interior air-flow velocity, such as at blade, mid-game and the shroud and casing air flow outlet and volute tongue of impeller, biggish frictional force wear equipment can be generated, so abrasion can be effectively reduced in corresponding position setting abrasion-proof composite plate.2, the heap on low-alloy steel applies one layer containing chromium and its carbide material to abrasion-proof composite plate of the invention using the method for built-up welding, due to the high-wearing feature of chromium and its carbide material, so that the wear-resisting property of abrasion-proof composite plate of the invention greatly improves, the abrasion for the coke powder that hardness is big, content is high can satisfy completely.
Description
Technical field
The invention belongs to blower fields, and in particular to a kind of wear-resistant centrifugal blower.
Background technique
Dry coke quenching technique is that a kind of iron and steel enterprise commonly ceases burnt technique, due to relative to the more energy efficient ring of wet quenching technique
It protects and is widely used.In dry coke quenching technical process, the red burnt loading at the top of coke dry quenching furnace, cryogenic inert gas is by circulating fan
It blasts in the red focus layer of coke dry quenching furnace cooling section, absorbs red burnt sensible heat, coke after cooling is discharged from coke dry quenching furnace bottom, from coke dry quenching furnace ring
The high temperature inert gas that shape flue comes out flows through dry coke quenching process boilers and carries out heat exchange, and boiler generates steam, after cooling lazy
Property gas is blasted coke dry quenching furnace by circulating fan again, and inert gas is recycled in closed system.
Dry quenching circulating fan is the important equipment in dry coke quenching technique, since coke powder content is very high in recyclegas, and
The hardness of coke powder is very big, thus to blower it is wear-resistant require it is high.
Summary of the invention
To solve the above-mentioned problems, it the object of the present invention is to provide a kind of wear-resistant centrifugal blower, can effectively drop
The abrasion of low draught fan impeller and casing.
The present invention provides the following technical solutions:
A kind of wear-resistant centrifugal blower is used for dry coke quenching technique, including casing and the impeller that is arranged in casing and
The motor for driving impeller work is equipped with abrasion-proof composite plate on the impeller, in casing.
Preferably, the abrasion-proof composite plate is that heap applies one layer containing chromium and its carbide material on low alloy steel plate.
Preferably, the impeller is closed-type double action crank press air inlet centrifugal impeller, including mid-game, positioned at the shroud of mid-game two sides and solid
The blade being scheduled between shroud and mid-game, the blade, mid-game two sides and shroud are equipped with compound resistance on the side of mid-game
Nog plate.
Preferably, the casing is in scroll casing shape, is equipped with abrasion-proof composite plate at the casing air flow outlet and volute tongue.
Preferably, the centrifugal blower further includes inlet box, and the inlet box is equipped with and matches with impeller airflow inlet
Adjustable damper.
Preferably, the adjustable damper is realized by adjustment structure, and the adjustment structure includes being arranged in air inlet
The adjustment gasket of bending position and the adjusting bolt for adjusting adjustment gasket and air inlet outer wall pretightning force, the tune on outer wall
Section bolt passes outwards through air inlet outer wall from the inside of air inlet and adjustment gasket is matched with adjusting nut.
Preferably, it the adjustment structure at least 4 and is circumferentially evenly arranged on air inlet outer wall at bending position.
Preferably, the inlet box is spiral inlet box.
Preferably, the bottom of the spiral inlet box is equipped with the wind-guiding circular arc that is connected with each other, the wind-guiding circular arc from into
Gas tank case mouth to the air inlet is gradually curved.
The beneficial effects of the present invention are:
1, since coke powder hardness is big, content is high, in the biggish place of blower interior air-flow velocity, such as impeller blade,
At mid-game and shroud and casing air flow outlet and volute tongue, biggish frictional force wear equipment can be generated, so corresponding
Abrasion-proof composite plate is arranged at position can effectively reduce abrasion.
2, wearing layer is formed by the way of common built-up welding in traditional blower, the coke that hardness is big, content is high can not be adapted to
The abrasion of powder, the heap on low-alloy steel applies one layer containing chromium and its carbide material to abrasion-proof composite plate of the invention using the method for built-up welding
Material, due to the high-wearing feature of chromium and its carbide material, so that the wear-resisting property of abrasion-proof composite plate of the invention greatly improves, it is complete
It can satisfy the abrasion for the coke powder that hardness is big, content is high entirely.
3, in blower normal mounting, air inlet is inserted into the airflow inlet of impeller, and the biggish blower of figure is at the scene
It inevitably will appear deviation when installation, it may appear that air inlet and the situation that impeller is interfered on one side, another side gap is excessive, the present invention are logical
Cross and adjustable air inlet be set to cope with such case, adjustable damper is realized by adjustment structure, including setting into
The adjustment gasket of bending position and the adjusting bolt for adjusting adjustment gasket and air inlet outer wall pretightning force, lead at this time on air port
Cross the bolt pretightening for increasing interference side, reduce the bolt pretightening of the excessive side in gap, the tube wall of crooked position due to rigidity compared with
It will not deform greatly, the tube wall rigidity of the nearly impeller end of air inlet is smaller to deform, so that air inlet generation be made slightly to become
Shape achievees the purpose that meet installation, simultaneously because increase adjusting gasket so that when fan design, can reduce air inlet with
The gap of impeller airflow inlet, the gap of traditional design are about 8-10mm, and the present invention can be reduced within 6mm, the reduction in gap,
Air-flow will be reduced from the amount of leakage of gap location, and the acting ability of blower will improve, in the case where same acting, blower effect
Rate can improve.
4, traditional inlet box bottom is the design of one section of circular arc type, after air-flow enters inlet box, some air-flow from into
The bottom of gas tank enters air inlet, and airflow collision can occur here for traditional inlet box, consumes energy, the present invention will be by air inlet
Case is designed to spirally, and bottom setting is in two sections of circular arc types designs, it is possible to reduce the collision between air-flow, allow air-flow more stably
Into air inlet, fan efficiency is increased.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is blade wheel structure figure of the present invention；
Fig. 3 is the A-A figure of Fig. 2；
Fig. 4 is the enlarged drawing in Fig. 3 at A；
Fig. 5 is casing air flow outlet structural schematic diagram；
Fig. 6 is the enlarged drawing in Fig. 1 at B；
Fig. 7 is inlet box structural schematic diagram.
Attached meaning marked in the figure is as follows:
24 air-flow of 10- casing 11- air stream outlet 12- volute tongue 20- impeller 21- mid-game 22- shroud 23- blade into
Mouth 30- motor 40- abrasion-proof composite plate 50- inlet box 51- air inlet 501- wind-guiding circular arc 521- adjusts gasket 522- tune
Whole bolt
Specific embodiment
The present invention is illustrated combined with specific embodiments below.
As shown in Figs. 1-5, a kind of wear-resistant centrifugal blower is used for dry coke quenching technique, including casing 10 and setting in machine
The motor 30 that impeller 20 in shell 10 and driving impeller 20 work is equipped with abrasion-proof composite plate 40 on impeller 20, in casing 10.
Preferably, impeller 20 is closed-type double action crank press air inlet centrifugal impeller, including mid-game 21, positioned at 21 two sides of mid-game shroud 22 and be fixed on
Blade 23 between shroud 22 and mid-game 21, blade 23,21 two sides of mid-game and shroud 22 are equipped on the side of mid-game 21
Abrasion-proof composite plate 40；Preferably, casing 10 is in scroll casing shape, and being equipped at 10 air stream outlet 11 of casing and at volute tongue 12 is compound
Wearing plate 40.Since coke powder hardness is big, content is high, in the biggish place of blower interior air-flow velocity, such as the blade of impeller 20
23, at 10 air stream outlet 11 of mid-game 21 and shroud 22 and casing and at volute tongue 12, biggish frictional force abrasion can be generated and set
It is standby, so abrasion can be effectively reduced in corresponding position setting abrasion-proof composite plate 40.
Above-described embodiment is advanced optimized, abrasion-proof composite plate 40 is that heap applies one layer on low-alloy steel using the method for built-up welding
Containing chromium and its carbide material, wherein the Europe superscript containing chromium and its carbide material is 6847 [%]: 4.5C- of DIN EN ISO
28Cr (remaining is Fe).Wearing layer is formed by the way of common built-up welding in traditional blower, can not adapt to that hardness is big, content is high
Coke powder abrasion, the heap on low-alloy steel applies one layer and contains chromium and its carbon using the method for built-up welding for abrasion-proof composite plate 40 of the invention
Compound material, due to the high-wearing feature of chromium and its carbide material, so that the wear-resisting property of abrasion-proof composite plate of the invention is significantly
It improves, can satisfy the abrasion for the coke powder that hardness is big, content is high completely.
As a shown in Figure 6, centrifugal blower further includes inlet box 50, and inlet box 50 is equipped with and 20 airflow inlet of impeller, 24 phase
The adjustable damper 51 of cooperation, it is preferred that adjustable damper 51 realizes that adjustment structure includes that setting exists by adjustment structure
The adjustment gasket 521 of bending position and for adjusting adjustment gasket 521 and 51 outer wall pretightning force of air inlet on air inlet outer wall
Bolt 522 is adjusted, bolt 522 is adjusted and passes outwards through 51 outer wall of air inlet and adjustment gasket 521 from the inside of air inlet 51 and adjust
Nut matches.Preferably, adjusting gasket 521 is towards the curved metal ring of 51 outer wall of air inlet.In blower normal mounting
In the case of, air inlet is inserted into the airflow inlet 24 of impeller 20, and figure biggish blower inevitably will appear deviation when installing at the scene,
It will appear air inlet and the situation that impeller 20 is interfered on one side, another side gap is excessive, the present invention is by being arranged adjustable air inlet
Mouthfuls 51 cope with such case, and adjustable damper 51 is realized by adjustment structure, including be arranged and be bent position on air inlet 51
The adjustment gasket 521 set and the adjusting bolt 522 for adjusting adjustment gasket 521 and 51 outer wall pretightning force of air inlet, lead at this time
522 pretightning force of adjusting bolt for increasing interference side is crossed, 522 pretightning force of adjusting bolt of the excessive side in gap is reduced, crooked position
Tube wall will not deform since rigidity is larger, and the tube wall rigidity at nearly 20 end of impeller of air inlet 51 is smaller to deform, thus
It deforms the generation of air inlet 51 slightly, achievees the purpose that meet installation, simultaneously because adjusting gasket 521 is increased, so that blower
When design, the gap of air inlet 51 Yu 20 airflow inlet 24 of impeller can be reduced, the gap of traditional design is about 8-10mm, this hair
Bright to be reduced within 6mm, the reduction in gap, air-flow will be reduced from the amount of leakage of gap location, and the acting ability of blower will
It improves, in the case where same acting, fan efficiency can be improved.
Advanced optimize above-described embodiment, adjustment structure at least 4, preferably 6, and circumferentially it is evenly arranged on air inlet 51
On outer wall at bending position.
As shown in fig. 7, inlet box 50 is spiral inlet box, the bottom of spiral inlet box is equipped with the wind-guiding being connected with each other
Circular arc 501, wind-guiding circular arc 501 are gradually curved from 50 casees mouths of inlet box to the air inlet 51.Traditional inlet box bottom is one
Section circular arc type design, after air-flow (arrow direction) enters inlet box, some air-flow enters air inlet from the bottom of inlet box,
Airflow collision can occur here for traditional inlet box, consume energy, and inlet box will be designed to that spirally bottom is set by the present invention
It sets in two sections of circular arc type designs, it is possible to reduce the collision between air-flow allows air-flow more stably to enter air inlet, increases blower
Efficiency.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of wear-resistant centrifugal blower, including casing (10) and the impeller (20) being arranged in casing (10) and driving leaf
Take turns the motor (30) of (20) work, which is characterized in that be equipped with abrasion-proof composite plate on the impeller (20), in casing (10)
(40)；
The centrifugal blower further includes inlet box (50), and the inlet box (50) is equipped with and impeller (20) airflow inlet (24) phase
The adjustable damper (51) of cooperation；
The adjustable damper (51) realizes that the adjustment structure includes being arranged in air inlet (51) outer wall by adjustment structure
The adjustment gasket (521) of upper bending position and the adjusting for being used to adjust adjustment gasket (521) and air inlet (51) outer wall pretightning force
Bolt (522), the adjusting bolt (522) pass outwards through air inlet (51) outer wall and adjustment gasket from the inside of air inlet (51)
(521) it is matched with adjusting nut.
2. the wear-resistant centrifugal blower of one kind according to claim 1, which is characterized in that the abrasion-proof composite plate (40) is
Heap applies one layer containing chromium and its carbide material on low alloy steel plate.
3. the wear-resistant centrifugal blower of one kind according to claim 1, which is characterized in that the impeller (20) is closed-type double action crank press
Air inlet centrifugal impeller, including mid-game (21) are located at the shroud (22) of mid-game (21) two sides and are fixed on shroud (22) and mid-game
(21) blade (23) between, the side of blade (23) two sides, mid-game (21) two sides and shroud (22) close to mid-game (21)
On be equipped with abrasion-proof composite plate (40).
4. the wear-resistant centrifugal blower of one kind according to claim 1, which is characterized in that the casing (10) is in spiral case
Shape is equipped with abrasion-proof composite plate (40) at casing (10) air stream outlet (11) and at volute tongue (12).
5. the wear-resistant centrifugal blower of one kind according to claim 1, which is characterized in that the adjustment structure at least 4
It is a and be circumferentially evenly arranged on air inlet (51) outer wall at bending position.
6. the wear-resistant centrifugal blower of one kind according to claim 1, which is characterized in that the inlet box (50) is spiral
Formula inlet box.
7. the wear-resistant centrifugal blower of one kind according to claim 6, which is characterized in that the bottom of the spiral inlet box
Portion is equipped with the wind-guiding circular arc (501) being connected with each other, and the wind-guiding circular arc (501) is from inlet box (50) case mouth to the air inlet
(51) it is gradually curved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484215.9A CN107191389B (en) | 2017-06-23 | 2017-06-23 | A kind of wear-resistant centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710484215.9A CN107191389B (en) | 2017-06-23 | 2017-06-23 | A kind of wear-resistant centrifugal blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107191389A CN107191389A (en) | 2017-09-22 |
| CN107191389B true CN107191389B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710484215.9A Active CN107191389B (en) | 2017-06-23 | 2017-06-23 | A kind of wear-resistant centrifugal blower |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805573B (en) * | 2019-12-12 | 2021-10-12 | 四川德胜集团钒钛有限公司 | Centrifugal fan |
| CN110939589A (en) * | 2019-12-12 | 2020-03-31 | 四川德胜集团钒钛有限公司 | High-temperature-resistant centrifugal fan |
| CN113996429B (en) * | 2021-10-21 | 2023-02-07 | 山东鑫海矿业技术装备股份有限公司 | Wear-resisting composite impeller for vortex crushing device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4681509A (en) * | 1984-07-23 | 1987-07-21 | American Davidson, Inc. | Variable inlet fan assembly |
| CN2802132Y (en) * | 2005-06-14 | 2006-08-02 | 南通金通灵风机有限公司 | Wear-resisting impeller of fan |
| CN101825111A (en) * | 2010-02-09 | 2010-09-08 | 于风福 | Wear resistant fan |
| CN101865155A (en) * | 2010-03-25 | 2010-10-20 | 南通大通宝富风机有限公司 | Heat resistant centrifugal fan |
| CN102654138A (en) * | 2011-03-02 | 2012-09-05 | 南通大通宝富风机有限公司 | Fan enclosure additionally provided with wear-resistant guard plates |
| CN203214437U (en) * | 2013-03-01 | 2013-09-25 | 重庆通用工业(集团)有限责任公司 | Centrifugal blower current collector adjusting device |
| CN103192162B (en) * | 2013-04-25 | 2014-12-03 | 山东大学 | Corrosion-resistant and wear-resistant composite metal plate |
| CN205154671U (en) * | 2015-10-21 | 2016-04-13 | 西安陕鼓通风设备有限公司 | A centrifugal fan for metallurgical industry shaft furnace sintering machine |
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2017
- 2017-06-23 CN CN201710484215.9A patent/CN107191389B/en active Active
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Address after: 230094 No. 9 West Fourth Road, high tech Zone, Hefei, Anhui (mechanical and Electrical Industrial Park) Applicant after: Hefei General Environment Control Technology Co., Ltd. Applicant after: Hefei General Machinery Research Institute Co., Ltd. Address before: 230094 No. 9 West Fourth Road, high tech Zone, Hefei, Anhui (mechanical and Electrical Industrial Park) Applicant before: Hefei General Environment Control Technology Co., Ltd. Applicant before: Hefei Universal Machinery Inst. |
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