CN212376912U

CN212376912U - Vertical axial flow fan for papermaking

Info

Publication number: CN212376912U
Application number: CN202020670141.5U
Authority: CN
Inventors: 陆淼军; 刘颖慧
Original assignee: Zhejiang Pengxiang Hvac Equipment Co ltd
Current assignee: Zhejiang Pengxiang Hvac Equipment Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2021-01-19
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a vertical axial flow fan for papermaking, wherein an outer upper air duct and an outer lower air duct are vertically arranged, and the outer upper air duct is arranged on the outer lower air duct in a lifting way; a semicircular cylindrical outer dismounting notch is formed in the right part of the upper end of the outer upper air duct; an outer disassembly ring is arranged in the outer disassembly gap; the inner air duct comprises a cylindrical inner lower air duct with a central opening at the upper end and a circular cylindrical inner upper air duct; the inner lower wind cylinder is fixed in the outer lower wind cylinder; the inner upper wind barrel is fixed on the outer upper wind barrel; an impeller shaft which is vertically arranged is pivoted in the inner upper wind barrel; the upper end of the impeller shaft is fixed with an impeller, and the lower end of the impeller shaft is fixed with a driven belt pulley; a semi-annular cylindrical inner dismounting notch is formed at the right end of the upper end of the inner upper air duct; an inner disassembly ring is arranged in the inner disassembly notch; the utility model has the advantages that: the motor is externally arranged and is matched with the impeller shaft to be sealed in the inner air duct, the service life of the fan is prolonged, and the inner air duct and the outer air duct can be separately arranged, so that subsequent maintenance is facilitated.

Description

Vertical axial flow fan for papermaking

Technical Field

The utility model relates to an axial fan's technical field, concretely relates to vertical axial fan is used in papermaking.

Background

High-temperature hot air flow is needed to dry paper pulp at high temperature on a paper pulp production line in the paper making industry, the temperature of fluid is high, the humidity is high, and a fan is used as necessary equipment for flowing high-temperature and high-humidity air and has high-temperature and high-humidity resistant conditions. The existing paper-making drying fan basically adopts a centrifugal fan, but the equipment has large volume, high manufacturing cost, low efficiency and large requirement on installation space, which directly increases the investment cost and the operation cost. If adopt ordinary axial fan, although installation space can reduce greatly, nevertheless because the motor can be flowed through at the in-process that flows of high temperature and high humidity air, even if adopt high temperature resistant, high humid motor, also can not guarantee its stability of operation under the long-term operation environment, the life of motor all can be shortened greatly usually, so in order to adapt to this kind of operating mode, axial fan's motor is external in order to increase its life, but this structure is dismantling the trouble, it is inconvenient to the maintenance of its inner structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a present vertical axial fan for papermaking maintains the inconvenient technical problem of maintenance, provides a vertical axial fan for papermaking.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a vertical axial flow fan for papermaking comprises an outer air duct and an inner air duct; the outer wind barrel comprises an outer upper wind barrel in a circular cylindrical shape and an outer lower wind barrel in a circular cylindrical shape; the outer upper air duct and the outer lower air duct are vertically arranged, and the outer upper air duct is arranged on the outer lower air duct in a lifting manner; a semicircular cylindrical outer dismounting notch is formed in the right part of the upper end of the outer upper air duct; an outer disassembly ring is arranged in the outer disassembly gap; the outer disassembling ring and the outer upper wind barrel form a complete circular cylinder; the inner wind barrel is arranged in the outer wind barrel, and the rotating central shafts of the inner wind barrel and the outer wind barrel are collinear; a gap is arranged between the inner wind barrel and the outer wind barrel; the inner air duct is arranged in a sealing way; the inner air duct comprises a cylindrical inner lower air duct with a central opening at the upper end and a circular cylindrical inner upper air duct; the inner lower wind cylinder is fixed in the outer lower wind cylinder; the inner upper wind barrel is fixed on the outer upper wind barrel; an impeller shaft which is vertically arranged is pivoted in the inner upper wind barrel; the upper end of the impeller shaft is fixed with an impeller, and the lower end of the impeller shaft is fixed with a driven belt pulley; a driving motor is fixed at the left end of the outer side wall of the outer upper air duct; a driving belt pulley is fixed at the lower end of an output shaft of the driving motor; the driving belt pulley is connected with the driven belt pulley through a belt; the driven belt pulley is positioned in the inner lower wind cylinder; the upper end surfaces of the outer lower air duct and the inner lower air duct are provided with transmission avoiding grooves for the belt to pass through; a semi-annular cylindrical inner dismounting notch is formed at the right end of the upper end of the inner upper air duct; an inner disassembly ring is arranged in the inner disassembly notch; the inner disassembling ring and the inner upper wind barrel form a complete circular cylinder; an upper disassembly connecting rod arranged in the radial direction is formed on the outer cylindrical surface of the inner disassembly ring; the outer end of the upper dismounting connecting rod is fixed on the cylindrical surface of the outer dismounting ring; a semicircular plate-shaped upper left sealing plate is formed at the upper end of the inner cylindrical surface of the inner upper wind barrel; a semicircular plate-shaped upper right closing plate is formed at the upper end of the inner cylindrical surface of the inner disassembling ring; the left upper closing plate and the right upper closing plate are positioned on the same horizontal plane and form a complete circular plate; a left through hole is formed in the right end face of the upper left closing plate; a right through hole is formed on the left end surface of the upper right closing plate; the right and left perforations constitute a complete perforation and this perforation is passed through by the impeller shaft.

Preferably, a left upper supporting plate is formed at the left lower end of the outer cylindrical surface of the outer upper air duct, and a right upper supporting plate is formed at the right lower corner of the outer upper air duct; an output shaft of the driving motor vertically penetrates through the left upper supporting plate; the left end of the outer cylindrical surface of the outer lower air duct is formed with a left lower supporting plate, and the right end of the outer cylindrical surface of the outer lower air duct is formed with a right lower supporting plate; lifting separation electric cylinders are respectively fixed on the upper end surfaces of the left lower supporting plate and the right lower supporting plate; the upper left supporting plate and the upper right supporting plate are respectively fixed at the upper ends of the piston rods of the lifting separation electric cylinders at the corresponding sides.

Preferably, the left lower supporting plate is a box body with an opening at the upper end; when the outer upper air cylinder is tightly attached to the outer lower air cylinder, the upper end opening of the left lower supporting plate is closed by the left upper supporting plate; the driving belt pulley is positioned in the left lower supporting plate.

Preferably, the front end and the rear end of the outer cylindrical surface at the upper part of the outer upper air duct are respectively provided with a left connecting plate; the front end and the rear end of the outer cylindrical surface of the outer dismounting ring are respectively provided with a right connecting plate; the left connecting plate and the right connecting plate are connected into a whole through a plurality of bolts.

Preferably, the front end and the rear end of the left end surface of the inner dismounting ring are respectively formed with a left insertion block and a right insertion block; the front end and the rear end of the right end face of the internal disassembly notch are respectively formed with a left slot and a right slot for inserting a left insertion block and a right insertion block.

Preferably, the front end and the rear end of the outer cylindrical surface of the inner lower air duct are respectively formed with a lower connecting rod which is arranged in the radial direction; the outer end of the lower connecting rod is fixed on the inner cylindrical surface of the outer lower air duct; the left end and the right end of the outer cylindrical surface of the inner upper air duct are respectively formed with a middle connecting rod which is arranged in the radial direction; the outer end of the middle connecting rod is fixed on the inner cylindrical surface of the outer upper air duct; the upper connecting rod is formed at the left upper end of the outer cylindrical surface of the inner upper air duct in a radial arrangement manner; the outer end of the upper connecting rod is fixed on the inner cylindrical surface of the outer upper air duct.

Preferably, two groups of connecting groups which are distributed up and down are formed on the inner cylindrical surface of the inner upper air duct; the connecting group comprises a plurality of inner connecting rods which are uniformly distributed on the circumference; a bearing seat is fixed at the inner side end of the inner connecting rod; the impeller shaft is pivoted on a pair of bearing blocks.

Preferably, a lower annular sealing ring is formed on the lower end surface of the inner upper wind barrel; and a lower sealing groove matched with the lower sealing ring is formed on the upper end surface of the inner lower air duct.

The beneficial effects of the utility model reside in that: the motor is externally arranged and is matched with the impeller shaft to be sealed in the inner air duct, the service life of the fan is prolonged, and the inner air duct and the outer air duct can be separately arranged, so that subsequent maintenance is facilitated.

Drawings

Fig. 1 is a schematic top view of the present invention;

fig. 2 is a schematic structural view of a cross section a-a in fig. 1 according to the present invention;

fig. 3 is a schematic structural view of a section B-B in fig. 2 according to the present invention;

in the figure, 10, an outer wind tube; 11. an outer upper wind barrel; 110. the notch is disassembled; 111. a middle connecting rod; 112. an upper connecting rod; 113. a right upper support plate; 114. a left upper support plate; 115. a left connecting plate; 12. an outer lower air duct; 121. a lower connecting rod; 122. a right lower support plate; 123. a left lower support plate; 13. an outer disassembly ring; 131. the connecting rod is disassembled; 132. a right connecting plate; 20. an inner air duct; 21. a lower wind barrel; 210. a lower seal groove; 212. An inner connecting rod; 22. an inner upper wind barrel; 220. an inner disassembly notch; 2200. a left slot and a right slot; 221. a lower seal ring; 222. an upper left closure plate; 2220. punching a left hole; 23. a bearing seat; 24. an impeller shaft; 25. an impeller; 26. a driven pulley; 27. an upper right closure plate; 271. an upper right closure plate; 2710. a right perforation; 30. a drive motor; 31. a drive pulley; 32. a belt.

Detailed Description

As shown in fig. 1 to 3, a vertical axial flow fan for papermaking comprises an outer wind tube 10 and an inner wind tube 20; the outer wind barrel 10 comprises an outer upper wind barrel 11 in a circular cylindrical shape and an outer lower wind barrel 12 in a circular cylindrical shape; the outer upper air duct 11 and the outer lower air duct 12 are vertically arranged, and the outer upper air duct 11 is arranged on the outer lower air duct 12 in a lifting manner; a semicircular cylindrical outer dismounting notch 110 is formed at the right part of the upper end of the outer upper wind barrel 11; an outer disassembly ring 13 is arranged in the outer disassembly notch 110; the outer disassembling ring 13 and the outer upper wind barrel 11 form a complete circular cylinder; the inner wind barrel 20 is arranged in the outer wind barrel 10, and the rotation central axes of the inner wind barrel and the outer wind barrel are collinear; a gap is arranged between the inner wind barrel 20 and the outer wind barrel 10; the inner air duct 20 is arranged in a sealing way; the inner wind barrel 20 comprises a cylindrical inner lower wind barrel 21 with an opening at the center of the upper end and a circular cylindrical inner upper wind barrel 22; the inner lower wind barrel 21 is fixed in the outer lower wind barrel 12; the inner upper wind barrel 22 is fixed on the outer upper wind barrel 11; an impeller shaft 24 which is vertically arranged is pivoted in the inner upper wind tube 22; an impeller 25 is fixed at the upper end of the impeller shaft 24, and a driven belt pulley 26 is fixed at the lower end; a driving motor 30 is fixed at the left end of the outer side wall of the outer upper wind barrel 11; a driving belt pulley 31 is fixed at the lower end of an output shaft of the driving motor; the driving pulley 31 and the driven pulley 26 are connected by a belt 32; the driven pulley 26 is positioned in the inner lower wind cylinder 21; the upper end surfaces of the outer lower wind barrel 12 and the inner lower wind barrel 21 are transmission avoiding grooves for the belt 32 to pass through; a semi-circular cylindrical inner dismounting notch 220 is formed at the right end of the upper end of the inner upper air cylinder 22; an inner disassembly ring 27 is arranged in the inner disassembly notch 220; the inner disassembling ring 27 and the inner upper wind cylinder 22 form a complete circular cylinder; an upper dismounting connecting rod 131 which is arranged in the radial direction is formed on the outer cylindrical surface of the inner dismounting ring 27; the outer end of the upper detaching link 131 is fixed on the cylindrical surface of the outer detaching ring 13; a semicircular plate-shaped upper left closing plate 222 is formed at the upper end of the inner cylindrical surface of the inner upper air cylinder 22; a semicircular plate-shaped upper right closing plate 271 is formed at the upper end of the inner cylindrical surface of the inner disassembling ring 27; the left upper closing plate 222 and the right upper closing plate 271 are on the same horizontal plane and form a complete circular plate; a left through hole 2220 is formed in the right end surface of the upper left closing plate 222; a right through hole 2710 is formed in the left end face of the right upper closing plate 271; the right perforation 2710 and the left perforation 2220 constitute one complete perforation and this perforation is passed through by the impeller shaft 24.

As shown in fig. 1 to 3, a left upper support plate 114 is formed at the left lower end of the outer cylindrical surface of the outer upper wind barrel 11, and a right upper support plate 113 is formed at the right lower corner; an output shaft of the driving motor 30 vertically passes through the left upper support plate 114; a left lower support plate 123 is formed at the left end of the outer cylindrical surface of the outer lower air duct 12, and a right lower support plate 122 is formed at the right end; the upper end surfaces of the left lower supporting plate 123 and the right lower supporting plate 122 are respectively fixed with a lifting separation electric cylinder 14; the left upper support plate 114 and the right upper support plate 113 are respectively fixed at the upper ends of the piston rods of the electric lift-separation cylinders 14 on the corresponding sides.

As shown in fig. 1 to 3, the left lower support plate 123 is a box body with an open upper end; when the outer upper air duct 11 is tightly attached to the outer lower air duct 12, the upper left support plate 114 closes the upper end opening of the lower left support plate 123; the drive pulley 31 is located within the left lower support plate 123.

As shown in fig. 1 to 3, left connecting plates 115 are respectively formed at the front and rear ends of the outer cylindrical surface of the upper part of the outer upper wind barrel 11; the front end and the rear end of the outer cylindrical surface of the outer dismounting ring 13 are respectively provided with a right connecting plate 132; the left connecting plate 115 and the right connecting plate 132 are integrally connected by a plurality of bolts.

As shown in fig. 1 to 3, left and right insertion blocks 272 are respectively formed at the front end and the rear end of the left end surface of the inner detachable ring 27; the right end face of the internal detachment notch 220 is formed at the front end and the rear end thereof with left and right insertion grooves 2200 into which the left and right insertion blocks 272 are inserted, respectively.

As shown in fig. 1 to 3, the front end and the rear end of the outer cylindrical surface of the inner lower wind tube 21 are respectively formed with a lower connecting rod 121 arranged radially; the outer end of the lower connecting rod 121 is fixed on the inner cylindrical surface of the outer lower air duct 12; the left end and the right end of the outer cylindrical surface of the inner upper wind cylinder 22 are respectively provided with a middle connecting rod 111 which is arranged in the radial direction; the outer end of the middle connecting rod 111 is fixed on the inner cylindrical surface of the outer upper wind barrel 11; an upper connecting rod 112 which is arranged in the radial direction is formed at the left upper end of the outer cylindrical surface of the inner upper air cylinder 22; the outer end of the upper connecting rod 112 is fixed on the inner cylindrical surface of the outer upper wind barrel 11.

As shown in fig. 1 to 3, two sets of connection sets distributed up and down are formed on the inner cylindrical surface of the inner upper wind cylinder 22; the connecting group comprises a plurality of inner connecting rods 212 which are uniformly distributed on the circumference; the inner end of the inner connecting rod 212 is fixed with a bearing seat 23; the impeller shaft 24 is pivotally connected to a pair of bearing blocks 23.

As shown in fig. 1 to 3, a lower annular seal ring 221 is formed on the lower end surface of the inner upper wind cylinder 22; the upper end surface of the inner lower wind barrel 21 is formed with a lower sealing groove 210 matched with the lower sealing ring 221.

The working principle of the vertical axial flow fan for papermaking;

the working state is as shown in fig. 1-3, at this time, the impeller shaft 24 is sealed in the inner air duct 20, and the driving motor 30 is externally arranged, so as to avoid contacting with high-temperature and high-humidity gas, and the service life of the driving motor 30 is prolonged;

when the air blower is disassembled, firstly, the outer lower air duct 12 rises to be separated from the outer upper air duct 11, so that the belt 32 is separated from the outer lower air duct 12 and is convenient to replace, meanwhile, the driving belt pulley 31 and the driving belt pulley 26 are exposed and are convenient to maintain, and finally, the outer disassembling ring 13 is taken down, so that the upper right sealing plate 27 is also detached, and the impeller shaft 24 and the pair of bearing seats 23 are exposed, so that the subsequent maintenance is convenient.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides a vertical axial fan for papermaking which characterized in that: comprises an outer wind barrel (10) and an inner wind barrel (20); the outer wind barrel (10) comprises an outer upper wind barrel (11) in a circular cylindrical shape and an outer lower wind barrel (12) in a circular cylindrical shape; the outer upper air duct (11) and the outer lower air duct (12) are vertically arranged, and the outer upper air duct (11) is arranged on the outer lower air duct (12) in a lifting way; a semi-circular cylindrical outer dismounting notch (110) is formed at the right part of the upper end of the outer upper wind barrel (11); an outer disassembly ring (13) is arranged in the outer disassembly notch (110); the outer disassembling ring (13) and the outer upper wind barrel (11) form a complete circular cylinder; the inner wind barrel (20) is arranged in the outer wind barrel (10) and the rotation central shafts of the inner wind barrel and the outer wind barrel are collinear; a gap is arranged between the inner wind barrel (20) and the outer wind barrel (10); the inner air duct (20) is arranged in a sealing way; the inner wind barrel (20) comprises a cylindrical inner lower wind barrel (21) with an opening at the center of the upper end and a circular cylindrical inner upper wind barrel (22); the inner lower wind barrel (21) is fixed in the outer lower wind barrel (12); the inner upper wind barrel (22) is fixed on the outer upper wind barrel (11); an impeller shaft (24) which is vertically arranged is pivoted in the inner upper wind barrel (22); an impeller (25) is fixed at the upper end of the impeller shaft (24), and a driven belt pulley (26) is fixed at the lower end; a driving motor (30) is fixed at the left end of the outer side wall of the outer upper wind barrel (11); a driving belt pulley (31) is fixed at the lower end of an output shaft of the driving motor; the driving pulley (31) and the driven pulley (26) are connected through a belt (32); the driven belt pulley (26) is positioned in the inner lower air duct (21); the upper end surfaces of the outer lower wind barrel (12) and the inner lower wind barrel (21) are transmission avoiding grooves for the belt (32) to pass through; a semi-circular cylindrical inner dismounting gap (220) is formed at the right end of the upper end of the inner upper wind barrel (22); an inner disassembly ring (27) is arranged in the inner disassembly notch (220); the inner disassembling ring (27) and the inner upper wind barrel (22) form a complete circular cylinder; an upper disassembly connecting rod (131) which is arranged in the radial direction is formed on the outer cylindrical surface of the inner disassembly ring (27); the outer end of the upper dismounting connecting rod (131) is fixed on the cylindrical surface of the outer dismounting ring (13); the upper end of the inner cylindrical surface of the inner upper wind barrel (22) is provided with a semicircular plate-shaped upper left closing plate (222); the upper end of the inner cylindrical surface of the inner disassembling ring (27) is formed with a semicircular plate-shaped upper right closing plate (271); the left upper closing plate (222) and the right upper closing plate (271) are positioned on the same horizontal plane and form a complete circular plate; a left through hole (2220) is formed in the right end face of the left upper closing plate (222); a right perforation (2710) is formed on the left end surface of the right upper closing plate (271); the right perforation (2710) and the left perforation (2220) constitute one complete perforation and this perforation is penetrated by the impeller shaft (24).

2. The vertical axial flow fan for papermaking according to claim 1, characterized in that: a left upper supporting plate (114) is formed at the left lower end of the outer cylindrical surface of the outer upper wind barrel (11), and a right upper supporting plate (113) is formed at the right lower corner; an output shaft of the driving motor (30) vertically penetrates through the left upper supporting plate (114); a left lower supporting plate (123) is formed at the left end of the outer cylindrical surface of the outer lower air duct (12), and a right lower supporting plate (122) is formed at the right end; the upper end surfaces of the left lower supporting plate (123) and the right lower supporting plate (122) are respectively fixed with a lifting separation electric cylinder (14); the left upper supporting plate (114) and the right upper supporting plate (113) are respectively fixed at the upper ends of the piston rods of the lifting separation electric cylinders (14) on the corresponding sides.

3. The vertical axial flow fan for papermaking according to claim 2, characterized in that: the left lower supporting plate (123) is a box body with an opening at the upper end; when the outer upper air duct (11) is tightly attached to the outer lower air duct (12), the upper end opening of the left lower support plate (123) is closed by the left upper support plate (114); the driving pulley (31) is positioned in the left lower supporting plate (123).

4. The vertical axial flow fan for papermaking according to claim 1, characterized in that: the front end and the rear end of the outer cylindrical surface at the upper part of the outer upper wind barrel (11) are respectively provided with a left connecting plate (115); the front end and the rear end of the outer cylindrical surface of the outer dismounting ring (13) are respectively provided with a right connecting plate (132); the left connecting plate (115) and the right connecting plate (132) are connected into a whole through a plurality of bolts.

5. The vertical axial flow fan for papermaking according to claim 1, characterized in that: a left insertion block and a right insertion block (272) are respectively formed at the front end and the rear end of the left end face of the inner disassembly ring (27); the front end and the rear end of the right end face of the internal disassembly notch (220) are respectively provided with a left slot (2200) and a right slot into which a left insertion block (272) and a right insertion block (2200) are inserted.

6. The vertical axial flow fan for papermaking according to claim 1, characterized in that: the front end and the rear end of the outer cylindrical surface of the inner lower air duct (21) are respectively provided with a radially arranged lower connecting rod (121); the outer end of the lower connecting rod (121) is fixed on the inner cylindrical surface of the outer lower air duct (12); the left end and the right end of the outer cylindrical surface of the inner upper wind barrel (22) are respectively formed with a middle connecting rod (111) which is arranged in the radial direction; the outer end of the middle connecting rod (111) is fixed on the inner cylindrical surface of the outer upper air duct (11); an upper connecting rod (112) which is arranged in the radial direction is formed at the left upper end of the outer cylindrical surface of the inner upper wind barrel (22); the outer end of the upper connecting rod (112) is fixed on the inner cylindrical surface of the outer upper wind barrel (11).

7. The vertical axial flow fan for papermaking according to claim 1, characterized in that: two groups of connection groups which are distributed up and down are formed on the inner cylindrical surface of the inner upper wind barrel (22); the connecting group comprises a plurality of inner connecting rods (212) which are uniformly distributed on the circumference; a bearing seat (23) is fixed at the inner side end of the inner connecting rod (212); the impeller shaft (24) is pivoted on a pair of bearing blocks (23).

8. The vertical axial flow fan for papermaking according to claim 1, characterized in that: a circular lower sealing ring (221) is formed on the lower end surface of the inner upper wind barrel (22); and a lower sealing groove (210) matched with the lower sealing ring (221) is formed on the upper end surface of the inner lower air duct (21).