CN203783929U - Roof ventilator for large power plant - Google Patents
Roof ventilator for large power plant Download PDFInfo
- Publication number
- CN203783929U CN203783929U CN201420168461.5U CN201420168461U CN203783929U CN 203783929 U CN203783929 U CN 203783929U CN 201420168461 U CN201420168461 U CN 201420168461U CN 203783929 U CN203783929 U CN 203783929U
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- CN
- China
- Prior art keywords
- air duct
- mounting disc
- sheet mounting
- main motor
- bolted
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a roof ventilator for a large power plant. The roof ventilator comprises a hood, an air duct, a base and a main motor, wherein the bottom of the air duct is arranged on the base, the main motor is arranged in the air duct, the base is internally provided with a separation net, the inner side wall of the air duct is fixedly provided with support blocks, four corners of a support frame are placed on the support blocks and are fixedly connected to the support blocks by bolts, the main motor is fixedly connected to the support frame by bolts, and a connecting shaft of the main motor downwards extends out of the support frame and is fixedly provided with an impeller above the separation net. The support frame of the roof ventilator can be dismounted, so that the ventilator is separated from the air duct when being mounted or dismounted, the weight of the air duct is reduced, and the carrying is convenient; the end face of a shell of the main motor is fixed on a support plate by bolts, a crane can be moved away after lifting and placing the main motor on the support frame, the main motor does not need to be lifted all the time, and the mounting difficulty is reduced.
Description
Technical field:
The utility model relates to ventilator technical field, relates in particular a kind of large power plant roof ventilator.
Background technique:
Existing roof ventilator is by blast cap, air duct, base, motor and impeller form, the mode that its motor is located in air duct is generally by be welded and fixed dunnage on air duct inwall, motor is bolted to connection in dunnage and is fixed, its dunnage cannot be separated with air duct when installation or removal to make like this roof ventilator, increased the weight of air duct, carrying air duct is just cumbersome like this, and the Placement between its motor and dunnage is also that motor is vertically placed, rotatingshaft is downward, then the outer wall at motor vertically arranges a plurality of through holes, by bolt and dunnage bolt, while installing like this, motor need to be adopted to the installation and removal of playing of the equipment such as hoist, need to wait until that the bolt between motor and dunnage all tightened or all disassembled and hoist could have been removed, bother so very much.
Simultaneously, the blade angle of existing its impeller of roof ventilator cannot regulate, regulate like this air quantity can only from the rotating speed aspect of impeller, regulate or increase the devices such as volume damper, rotating speed aspect need to be controlled motor, this bothers very much, and dress volume damper is to have increased cost.
Model utility content:
The purpose of this utility model is exactly the deficiency for prior art, and provide a kind of large power plant roof ventilator, its supporting frame can be dismantled, make blower fan when installing or dismantle, separated with air duct, thereby reduce the weight of air duct, convenient carrying, simultaneously, it is that housing end face by main motor is bolted in dunnage, main like this motor can be sling to be placed on supporting frame by hoist and can remove hoist, without the main motor that plays always, it has reduced the difficulty of installing, simultaneously, the blade of its impeller is adjustable, the convenient air quantity that regulates.
Technology solution of the present utility model is as follows:
A kind of large power plant roof ventilator, comprise blast cap, air duct, base and main motor, described air duct bottom is arranged on described base, air duct top is provided with described blast cap, described main motor is arranged at air duct inside, in described base, be provided with isolation net, on the madial wall of air duct, be fixed with support block, four angles of supporting frame are placed on support block and are bolted to connection on support block;
Main motor is bolted to connection on supporting frame, and the coupling shaft of main motor stretches out supporting frame downwards and on coupling shaft, is fixed with impeller, and impeller is above isolation net.
Support frame as described above structure is, the two ends of a plurality of longitudinal beams are weldingly fixed on respectively between two crossbeams and form support body, and dunnage is weldingly fixed on two longitudinal beams at middle part and the center of two crossbeams, and the middle part of dunnage forms through hole.
Described support block structure is, the both sides of base plate are welded with respectively left sideboard and right sideboard, the rear end of four support blocks is all weldingly fixed on the madial wall of air duct, the madial wall of air duct be each side distributed with two support blocks, the support block of the left and right sides is corresponding one by one; Four end sleeves of two crossbeams of supporting frame are between the left sideboard of support block and right sideboard and be bolted to connection on base plate.
On described air duct, also form threading hole, on the madial wall of air duct, be fixed with penetration pipe, penetration pipe communicates with threading hole.
On the outer side wall of described air duct, be welded with reinforced block, the bottom welding of reinforced block is fixed on base.
Described impeller sleeve interference fit holding are in the lower end of coupling shaft, in the positioning hole on the lower annular protrusion limit that the tail end sleeve of the adjusting bolt on impeller forms on the outer wall of the middle part of coupling shaft and be bolted with set screw nut, set screw nut is pressed against the upper plane on lower annular protrusion limit.
Described blade wheel structure is, it comprises blade, the mounting disc of lobus sinister sheet and the mounting disc of lobus dexter sheet, the underpart outer wall of coupling shaft forms spacing rib, the lower end of coupling shaft successively sleeve interference fit holding in the center hole of the mounting disc of lobus sinister sheet and the mounting disc of lobus dexter sheet, the mounting disc of lobus sinister sheet is pressed against on spacing rib, the top end of the lower end of coupling shaft is bolted with block, the mounting disc of described lobus sinister sheet and the mounting disc of lobus dexter sheet form respectively that left gulde edge is accommodated nest and right gulde edge is accommodated nest, on the petiole end of blade, form axially locating limit, this gulde edge is clamped in that left gulde edge is accommodated nest and right gulde edge is accommodated between nest, described right gulde edge is accommodated on the bottom surface of nest and is formed some wedge grooves, on described gulde edge, form wedge lug, wedge lug sleeve is in wedge groove, a plurality of adjusting bolts are through the mounting disc of lobus sinister sheet and the mounting disc of lobus dexter sheet, it is bolted with adjusting nut, the mounting disc of lobus sinister sheet and the mounting disc of lobus dexter sheet are clamped between adjusting nut and the head of adjusting bolt, a plurality of adjusting bolts are lined up two annular concentric circles centered by the longitudinal center line of the mounting disc of lobus sinister sheet or the mounting disc of lobus dexter sheet, the tail end of the adjusting nut of its inner ring is through the positioning hole on lower annular protrusion limit, and be bolted with set screw nut.
The beneficial effects of the utility model are:
1, its supporting frame can be dismantled, make blower fan when installing or dismantle, separated with air duct, thereby reduce the weight of air duct, convenient carrying, simultaneously, it is that housing end face by main motor is bolted in dunnage, main like this motor can be sling to be placed on supporting frame by hoist and can remove hoist, and without the main motor that plays always, it has reduced the difficulty of installing.
2, the blade of its impeller can carry out angular adjustment and regulate the air quantity of blower fan, and it regulates simple, without mechanisms such as specific controlling mechanism or other volume control dampers, reduces costs.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that the utility model removes blast cap;
Fig. 3 is that Fig. 2 changes angle partial structurtes schematic diagram;
Fig. 4 is the partial structurtes schematic diagram that supporting frame is installed on air duct;
Fig. 5 is the partial structurtes schematic diagram that support block is installed on air duct;
Fig. 6 is the partial structurtes schematic diagram of air duct, support block, supporting frame;
Fig. 7 is the partial structurtes schematic diagram between impeller and coupling shaft;
Fig. 8 is the side view of the mounting disc of lobus sinister sheet, the mounting disc of lobus dexter sheet and main shaft;
Fig. 9 is that blades installation is at the structural representation of the mounting disc of lobus sinister sheet and the mounting disc of lobus dexter sheet;
Figure 10 is the partial structurtes schematic diagram of lobus sinister sheet of the present utility model mounting disc and the mounting disc of lobus dexter sheet;
Figure 11 is the partial structurtes schematic diagram of the coupling shaft of main motor.
Embodiment:
Embodiment: see shown in Fig. 1 to 11, a kind of large power plant roof ventilator, comprise blast cap 1, air duct 2, base 3 and main motor 4, described air duct 2 bottoms are arranged on described base 3, air duct 2 tops are provided with described blast cap 1, and described main motor 4 is arranged at air duct 2 inside, in described base 3, is provided with isolation net 5, on the madial wall of air duct 2, be fixed with support block 21, four angles of supporting frame 22 are placed on support block 21 and are bolted to connection on support block 21;
Main motor 4 is bolted to connection on supporting frame 22, and the coupling shaft 7 of main motor 4 stretches out supporting frame 22 downwards and on coupling shaft 7, is fixed with impeller 6, and impeller 6 is above isolation net 5.
Support frame as described above 22 structures are, the two ends of a plurality of longitudinal beams 221 are weldingly fixed on respectively between two crossbeams 222 and form support body, dunnage 223 is weldingly fixed on two longitudinal beams 221 at middle part and the center of two crossbeams 222, and the middle part of dunnage 223 forms through hole 224.
Described support block 21 structures are, the both sides of base plate 211 are welded with respectively left sideboard 212 and right sideboard 213, the rear end of four support blocks 21 is all weldingly fixed on the madial wall of air duct 2, the madial wall of air duct 2 be each side distributed with two support blocks 21, the support block 21 of the left and right sides is corresponding one by one; Four end sleeves of two crossbeams 222 of supporting frame 22 are between the left sideboard 212 of support block 21 and right sideboard 213 and be bolted to connection on base plate 211.
On described air duct 2, also form threading hole, be fixed with penetration pipe 24 on the madial wall of air duct 2, penetration pipe 24 communicates with threading hole.
On the outer side wall of described air duct 2, be welded with reinforced block 25, the bottom welding of reinforced block 25 is fixed on base 211, has guaranteed the fixation of air duct 2 with base 211.
Described impeller 6 sleeves interference fit holding are in the lower end of coupling shaft 7, in the positioning hole on the lower annular protrusion limit 72 that the tail end sleeve of the adjusting bolt 61 on impeller 6 forms on the outer wall of the middle part of coupling shaft 7 and be bolted with set screw nut 8, set screw nut 8 is pressed against the upper plane on lower annular protrusion limit 72.
Described impeller 6 structures are, it comprises blade 62, lobus sinister sheet mounting disc 63 and lobus dexter sheet mounting disc 64, the underpart outer wall of coupling shaft 7 forms spacing rib 73, the lower end of coupling shaft 7 successively sleeve interference fit holding in the center hole of lobus sinister sheet mounting disc 63 and lobus dexter sheet mounting disc 64, lobus sinister sheet mounting disc 63 is pressed against on spacing rib 73, the top end of the lower end of coupling shaft 7 is bolted with block 30, described lobus sinister sheet mounting disc 63 and lobus dexter sheet mounting disc 64 form respectively that left gulde edge is accommodated nest 631 and right gulde edge is accommodated nest 641, on the petiole end of blade 62, form axially locating limit 621, this gulde edge 621 is clamped in that left gulde edge is accommodated nest 631 and right gulde edge is accommodated between nest 641, described right gulde edge is accommodated on the bottom surface of nest 641 and is formed some wedge grooves 6411, on described gulde edge 621, form wedge lug 6211, wedge lug 6211 sleeves are in wedge groove 6411, a plurality of adjusting bolts 61 are through lobus sinister sheet mounting disc 63 and lobus dexter sheet mounting disc 64, it is bolted with adjusting nut 40, lobus sinister sheet mounting disc 63 and lobus dexter sheet mounting disc 64 are clamped between adjusting nut 40 and the head of adjusting bolt 61, a plurality of adjusting bolts 61 are lined up two annular concentric circles centered by the longitudinal center line of lobus sinister sheet mounting disc 63 or lobus dexter sheet mounting disc 64, the tail end of the adjusting nut 40 of its inner ring is through the positioning hole on lower annular protrusion limit 72, and be bolted with set screw nut 8.
When it is installed, by four end sleeves of two crossbeams 222 of supporting frame 22 between the left sideboard 212 of support block 21 and right sideboard 213 and be bolted to connection on base plate 211, then main motor 4 is placed on to the middle part of the dunnage 223 of supporting frame 22 by hoist, and make the coupling shaft 7 of main motor 4 through the through hole 224 of dunnage 223, then by bolt, main motor 4 is fixed in dunnage 223, it is easy for installation, simply, simultaneously, it need to dismantle also very convenient, only the bolt in the shell end of main motor 4 need to be backed out, then by hoist, main motor 4 is sling and is placed on other places, then the bolt fixing on the base plate 211 of two crossbeams of supporting frame 22 222 and support block 21 is backed out and can be shifted out supporting frame 22 is whole, alleviate the weight of air duct 2, facilitate the carrying of air duct 2.
The utility model is in regulating air volume, only need to regulate blade 62 of the present utility model, first unclamp adjusting nut 40 and set screw nut 8, then unclamp adjusting bolt 61, then mention blade 62, wedge lug 6211 is extracted from wedge groove 6411, again blade 62 is rotated to angle (the adjustment angle of blade 62 is 10～30 degree) definitely, be rotated in place after by wedge lug 6211 again sleeve at wedge groove 6411, after adjusting completes, tighten adjusting nut 40 and set screw nut 8, complete adjusting.
Claims (7)
1. a large power plant roof ventilator, comprise blast cap (1), air duct (2), base (3) and main motor (4), described air duct (2) bottom is arranged on described base (3), air duct (2) top is provided with described blast cap (1), described main motor (4) is arranged at air duct (2) inside, it is characterized in that: in described base (3), be provided with isolation net (5), on the madial wall of air duct (2), be fixed with support block (21), four angles of supporting frame (22) are placed on support block (21) and go up and be bolted to connection on support block (21);
Main motor (4) is bolted to connection at supporting frame (22) upper, and the coupling shaft (7) of main motor (4) stretches out supporting frame (22) downwards and on coupling shaft (7), is fixed with impeller (6), and impeller (6) is in the top of isolation net (5).
2. a kind of large power plant roof ventilator according to claim 1, it is characterized in that: support frame as described above (22) structure is, the two ends of a plurality of longitudinal beams (221) are weldingly fixed on respectively between two crossbeams (222) and form support body, dunnage (223) is weldingly fixed on two longitudinal beams (221) at middle part and the center of two crossbeams (222), and the middle part of dunnage (223) forms through hole (224).
3. a kind of large power plant roof ventilator according to claim 2, it is characterized in that: described support block (21) structure is, the both sides of base plate (211) are welded with respectively left sideboard (212) and right sideboard (213), the rear end of four support blocks (21) is all weldingly fixed on the madial wall of air duct (2), the madial wall of air duct (2) be each side distributed with two support blocks (21), the support block of the left and right sides (21) is corresponding one by one; Four end sleeves of two crossbeams (222) of supporting frame (22) are between the left sideboard (212) of support block (21) and right sideboard (213) and be bolted to connection on base plate (211).
4. a kind of large power plant roof ventilator according to claim 1, is characterized in that: described air duct also forms threading hole on (2), and on the madial wall of air duct (2), be fixed with penetration pipe (24), penetration pipe (24) communicates with threading hole.
5. a kind of large power plant roof ventilator according to claim 1, is characterized in that: on the outer side wall of described air duct (2), be welded with reinforced block (25), the bottom welding of reinforced block (25) is fixed on base (211).
6. a kind of large power plant roof ventilator according to claim 1, it is characterized in that: described impeller (6) sleeve interference fit holding are in the lower end of coupling shaft (7), in the positioning hole on the lower annular protrusion limit (72) that the tail end sleeve of the adjusting bolt (61) on impeller (6) forms on the middle part outer wall of coupling shaft (7) and be bolted with set screw nut (8), set screw nut (8) is pressed against the upper plane on lower annular protrusion limit (72).
7. a kind of large power plant roof ventilator according to claim 6, it is characterized in that: impeller (6) structure is, it comprises blade (62), lobus sinister sheet mounting disc (63) and lobus dexter sheet mounting disc (64), the underpart outer wall of coupling shaft (7) forms spacing rib (73), the lower end of coupling shaft (7) successively sleeve interference fit holding in the center hole of lobus sinister sheet mounting disc (63) and lobus dexter sheet mounting disc (64), lobus sinister sheet mounting disc (63) is pressed against on spacing rib (73), the top end of the lower end of coupling shaft (7) is bolted with block (30), described lobus sinister sheet mounting disc (63) and lobus dexter sheet mounting disc (64) form respectively that left gulde edge is accommodated nest (631) and right gulde edge is accommodated nest (641), on the petiole end of blade (62), form axially locating limit (621), this gulde edge (621) is clamped in that left gulde edge is accommodated nest (631) and right gulde edge is accommodated between nest (641), described right gulde edge is accommodated on the bottom surface of nest (641) and is formed some wedge grooves (6411), on described gulde edge (621), form wedge lug (6211), wedge lug (6211) sleeve is in wedge groove (6411), a plurality of adjusting bolts (61) are through lobus sinister sheet mounting disc (63) and lobus dexter sheet mounting disc (64), it is bolted with adjusting nut (40), lobus sinister sheet mounting disc (63) and lobus dexter sheet mounting disc (64) are clamped between adjusting nut (40) and the head of adjusting bolt (61), a plurality of adjusting bolts (61) are lined up two annular concentric circles centered by the longitudinal center line of lobus sinister sheet mounting disc (63) or lobus dexter sheet mounting disc (64), the tail end of the adjusting nut of its inner ring (40) is through the positioning hole on lower annular protrusion limit (72), and be bolted with set screw nut (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168461.5U CN203783929U (en) | 2014-04-08 | 2014-04-08 | Roof ventilator for large power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420168461.5U CN203783929U (en) | 2014-04-08 | 2014-04-08 | Roof ventilator for large power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783929U true CN203783929U (en) | 2014-08-20 |
Family
ID=51320122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420168461.5U Expired - Fee Related CN203783929U (en) | 2014-04-08 | 2014-04-08 | Roof ventilator for large power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783929U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861092A (en) * | 2019-02-27 | 2019-06-07 | 李振平 | A kind of dustproof ventilated type power distribution cabinet |
-
2014
- 2014-04-08 CN CN201420168461.5U patent/CN203783929U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861092A (en) * | 2019-02-27 | 2019-06-07 | 李振平 | A kind of dustproof ventilated type power distribution cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20190408 |