CN2410452Y - Wear-proof shell for centrifugal dust-removing fan - Google Patents
Wear-proof shell for centrifugal dust-removing fan Download PDFInfo
- Publication number
- CN2410452Y CN2410452Y CN 99256685 CN99256685U CN2410452Y CN 2410452 Y CN2410452 Y CN 2410452Y CN 99256685 CN99256685 CN 99256685 CN 99256685 U CN99256685 U CN 99256685U CN 2410452 Y CN2410452 Y CN 2410452Y
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- liner plate
- plate
- wear
- radial
- abrasionproof
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Abstract
The utility model relates to an anti-wear wind shell for a centrifugal dust-removing fan, which comprises a front and a back side plates (8), a radial plate (9) and a radial arced lining plate (5). The utility model is characterized in that a manhole door (1) is arranged in the axis directions of a fan; the involute edges of the front and the back side plates (8) at the upper part of the wind shell are provided with a step; a groove-shaped (6) is composed of the step and to the radial plate (9); a strip-shaped radial anti-wear lining plate (2) is inserted in the groove-shaped slideway (6); a lateral anti-wear lining plate (3) is fixed on the inner walls of the front and the back side plates (8) by a countersunk bolt; the radius of the inner arc of the lateral anti-wear lining plate is equal to the radius of an impeller; the radius of the outer arc extends to the bottom of the radial anti-wear lining plate (2). The anti-wear wind shell for the fan can effectively prevent wind shells from being worn.
Description
The utility model relates to the abrasionproof technology of the crust of weathering of centrifugal Powder discharging fan, particularly thermal power plant centrifugal dust-removing fan wear-proof shell.
The centrifugal Powder discharging fan in thermal power plant is washing away of wind-engaging powder medium in the running, causes the wearing and tearing of parts and housing, is forced to out of servicely, influences unit output.Traditional method is welding one deck abrasionproof steel scaleboard on crust of weathering inwall, the wearing and tearing back cuts down from housing, again lay the abrasionproof liner plate, and it is fixing with pin and housing welding, frequent cutting repair welding is in the inner local bigger thermal stress that produces of metallic material, cause crust of weathering distortion, each junction plane is around Qu Buping, and assembling is difficult, and junction plane is poorly sealed, produce and leak, befouling environment, what influence impeller and the crust of weathering internal structure when serious cooperates the operation of threat Powder discharging fan, finally cause repairing difficulty, be forced to change.The welding fixing pin is many and indiscriminate, influences the overall appearance and the intensity of equipment.During repair and maintenance, many work will enter ability operation in the casing, and work difficulty is big, and Security is low, the maintenance expenses height.
The purpose of this utility model is to overcome the deficiency of traditional abrasionproof blower fan crust of weathering, and a kind of new centrifugal dust-removing fan wear-proof shell is provided, and its mounting or dismounting abrasionproof liner plate need not weld and cut, and installation and maintenance are convenient, and good airproof performance does not have and leaks, and maintenance cost is low.
The purpose of this utility model adopts following proposal to reach.
The centrifugal dust-removing fan wear-proof shell, side plate before and after it comprises, radial plate and radial strut abrasionproof liner plate, direction is provided with manhole door on the blower fan axis, side plate involute limit has step and radial plate to constitute the flute profile slideway before and after the first half crust of weathering, and setting-in radially abrasionproof liner plate on the flute profile slideway, and front and back side plate inwall is provided with side direction abrasionproof liner plate, the inner arc radius of its side direction abrasionproof liner plate equals the draught fan impeller radius, and the outer arc radius is abrasionproof liner plate bottom extremely radially.
Described radially abrasionproof liner plate is a long strip, and there is the tenon that matches with the flute profile slideway at two, can be packed into and is split out the flute profile slideway by manhole door.
Described side direction abrasionproof liner plate is fixed on the front and back side plate of the crust of weathering with countersunk screw.Radially bar shaped abrasionproof liner plate is made with abrasion resistant cast steel, and side direction abrasionproof liner plate adopts the 16Mn manganese steel plate.
The advantage of this centrifugal dust-removing fan wear-proof shell is:
1, after establishing manhole door on the crust of weathering above the blower fan axis, the inspection of impeller and blade is repaired with local, with the static and dynamic equilibrium after the maintenance, and operation such as local replacing abrasionproof liner plate can stand in manhole door and carries out outward, work is convenient, prevented the harm of dust and sulfur dioxide gas to the operating personnel, safe and reliable.
2, since radially the abrasionproof liner plate adopt embedded stripe board, side direction abrasionproof liner plate outer arc limit is until bar shaped liner plate bottom radially, and side direction abrasionproof liner plate is fixed on the crust of weathering front and rear panel inwall, so good seal with countersunk screw, do not have and leak, and mounting or dismounting abrasionproof liner plate is convenient.
3, bar shaped radially the abrasionproof liner plate adopt wear-resistant cast steel parts, the side direction liner plate adopts the abrasion-proof manganese steel material, has reduced the wearing and tearing of the crust of weathering, has prolonged working life.
The model utility concrete structure is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is according to the centrifugal dust-removing fan wear-proof shell structural drawing that the utility model proposes.
Fig. 2 is the left pseudosection of centrifugal dust-removing fan wear-proof shell shown in Figure 1.
Fig. 3 is the A-A profile of Fig. 1.
Fig. 4 is 2 a worm's eye view in addition among Fig. 1.
Be described further below in conjunction with the structure of accompanying drawing model utility.
The crust of weathering of centrifugal dust-removing fan shown in the figure, side plate 8 before and after comprising, radial plate 9, radial strut abrasionproof liner plate 5, direction is provided with manhole door 1 on the blower fan axle, the involute edge of side plate 8 is provided with step before and after the first half crust of weathering, this step and radial plate 9 constitute flute profile slideway 6, the movable embedded radially abrasionproof liner plate 2 of the bar shaped that there is a tenon at two ends that is installed with in this flute profile slideway 6, on the inwall of front and back side plate 8 side direction abrasionproof liner plate 3 is housed, abrasionproof liner plate 3 usefulness countersunk screws 4 are fixed on the side plate 8 of front and back, the inner arc of this side direction abrasionproof liner plate 3 and the outer of draught fan impeller are mutually neat, its outer arc is until the bar shaped bottom of abrasionproof liner plate 2 radially, and bar shaped radially abrasionproof liner plate 2 is an abrasion-resistant cast steel material, and side direction abrasionproof liner plate 3 is the 16Mn manganese steel plate.The position washed away of the easy wind-engaging powder of crust of weathering medium is equipped with the abrasion resistance alloy liner plate like this, can protect the crust of weathering not frayed effectively, and good seal, does not leak dust, has improved the reliability of equipment, has prolonged the working life of blower fan.Because direction is provided with manhole door on the blower fan axis, radially the abrasionproof liner plate is to embed from conduit 6 one by one, and side direction abrasionproof liner plate bolt is so mounting or dismounting abrasionproof liner plate just can carry out easily from manhole door.
Claims (5)
1, a kind of centrifugal dust-removing fan wear-proof shell, side plate (8) before and after it comprises, radial plate (9) and radial strut liner plate (5), it is characterized in that direction is provided with manhole door (1) on the blower fan axis, there is step on side plate (8) involute limit before and after the first half crust of weathering, this step and radial plate (9) constitute flute profile slideway (6), flute profile slideway (6) is gone up setting-in and radially abrasionproof liner plate (2), the inwall of front and back side plates (9) is provided with side direction abrasionproof liner plate (3), the inner arc radius of this side direction abrasionproof liner plate (3) equals the radius of impeller, and the outer arc radius is abrasionproof liner plate (2) bottom extremely radially.
2, blower fan wear-proof shell as claimed in claim 1 is characterized in that described radially abrasionproof liner plate (2) is a long strip, and there is the tenon (7) that matches with flute profile slideway (6) at two.
3, as claim 1,2 described blower fan wear-proof shells, it is characterized in that radially abrasionproof liner plate (2) is made with abrasion resistant cast steel.
4, blower fan wear-proof shell as claimed in claim 1 is characterized in that described side direction abrasionproof liner plate (3) is fixed on the crust of weathering with countersunk screw (4).
5, blower fan wear-proof shell as claimed in claim 1 is characterized in that side direction abrasionproof liner plate (3) is the 16Mn manganese steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256685 CN2410452Y (en) | 1999-12-22 | 1999-12-22 | Wear-proof shell for centrifugal dust-removing fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256685 CN2410452Y (en) | 1999-12-22 | 1999-12-22 | Wear-proof shell for centrifugal dust-removing fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2410452Y true CN2410452Y (en) | 2000-12-13 |
Family
ID=34039746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256685 Expired - Fee Related CN2410452Y (en) | 1999-12-22 | 1999-12-22 | Wear-proof shell for centrifugal dust-removing fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2410452Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350022A (en) * | 2013-07-12 | 2013-10-16 | 河南省四达仙龙实业有限公司 | Blower casing of pulverizer |
-
1999
- 1999-12-22 CN CN 99256685 patent/CN2410452Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103350022A (en) * | 2013-07-12 | 2013-10-16 | 河南省四达仙龙实业有限公司 | Blower casing of pulverizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |