CN217380940U

CN217380940U - Draught fan for environment-friendly energy-saving furnace

Info

Publication number: CN217380940U
Application number: CN202122161697.9U
Authority: CN
Inventors: 罗意鹏
Original assignee: Foshan Guangfeng Fan Co ltd
Current assignee: Foshan Guangfeng Fan Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-09-06
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses an induced draft fan for an environment-friendly energy-saving furnace, which comprises a base, a driving component and an induced draft component; the lower part of the base is provided with a supporting leg; the upper part of the base is provided with a supporting rod, the top end of the supporting rod is fixed with a supporting ring, a driving assembly is fixed in the supporting ring, one side of the driving assembly is provided with a fixed pipe, and the tail end of the fixed pipe is fixed with an induced draft assembly; an air exhaust hole is formed in the lower portion of the air inducing assembly, a fixing rod is arranged on the lower portion of the air exhaust hole, and the lower end of the fixing rod is fixed to the upper portion of the base; the driving assembly consists of a placing box, a fixing frame, a fixing ring, a motor, a first ventilation hole, a heat dissipation fan, a second ventilation hole, a bearing, a rotating shaft, a third ventilation hole and a protective net; the induced draft assembly consists of a connecting pipe, a silencing pipe, an adsorption assembly, a sound absorption layer, blades, an impeller and a shell; the induced draft fan for the environment-friendly and energy-saving furnace can adsorb dust and harmful substances in airflow, is energy-saving and environment-friendly, and is convenient to use.

Description

Draught fan for environment-friendly energy-saving furnace

Technical Field

The utility model relates to a fan field, in particular to draught fan for environment-friendly and energy-saving furnace.

Background

The furnace induced draft fan is a machine which can raise gas pressure and discharge gas by means of mechanical energy input by motor, and is a driven fluid machine, and its working principle is basically identical to that of turbine compressor, and it is characterized by that it has no need of considering change of specific volume of gas, i.e. it can treat gas as incompressible fluid. When the traditional induced draft fan for the furnace is used, because most of high-temperature flue gas conveyed by the induced draft fan for the boiler is about 200 ℃, the flue gas contains a large amount of fly ash, SO2 and other corrosive gases, the abrasion of fan blades is serious, and accidents such as the reduction of the output of the fan, vibration, blade fracture and the like are easy to occur. The traditional induced draft fan for the furnace is generally used in the environment with higher temperature, if a cooling measure is adopted to cool the motor, the service life of the motor is greatly reduced, and the use of the motor is inconvenient; in addition, most of the air in the furnace draught fan contains a large amount of dust and harmful substances, so that the environment is polluted and the furnace draught fan is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an environment-friendly and energy-saving draught fan for furnace, which can effectively solve the problems in the background art.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

an induced draft fan for an environment-friendly energy-saving furnace comprises a base, a driving assembly and an induced draft assembly; the lower part of the base is provided with four groups of supporting legs which are arranged at four corners of the base; the upper part of the base is provided with a supporting rod, the top end of the supporting rod is fixedly provided with a supporting ring, a driving assembly is fixed in the supporting ring, one side of the driving assembly is provided with a fixed pipe, the tail end of the fixed pipe is fixedly provided with an induced air assembly, and one side of the induced air assembly, which is far away from the fixed pipe, is provided with an air inlet pipe; an air exhaust hole is formed in the lower portion of the air inducing assembly, a fixing rod is arranged on the lower portion of the air exhaust hole, and the lower end of the fixing rod is fixed to the upper portion of the base; the driving assembly consists of a placing box, a fixing frame, a fixing ring, a motor, a first vent hole, a heat dissipation fan, a second vent hole, a bearing, a rotating shaft, a third vent hole and a protective net; the placing box is fixed in the supporting ring, a fixing frame is arranged in the placing box, a fixing ring is fixed in the middle of the fixing frame, a motor is arranged in the fixing ring, the output end of the motor is connected with a rotating shaft, a heat dissipation fan is arranged on the rotating shaft, a bearing is arranged at the contact part of the rotating shaft and the placing box, a second ventilation hole and a third ventilation hole are respectively arranged on the placing box on the upper side and the lower side of the bearing, and a first ventilation hole is arranged on one side, far away from the rotating shaft, of the placing box; the induced draft assembly consists of a connecting pipe, a silencing pipe, an adsorption assembly, a sound absorption layer, blades, an impeller and a shell; the shell is connected to the fixed pipe, the rotating shaft is placed in the fixed pipe, the tail end of the rotating shaft is provided with the impeller, the impeller is fixed in the shell, and blades are arranged around the impeller; a sound absorption layer is arranged on the outer side of the shell; the adsorption component is installed to the lower part of shell, and the end-to-end connection of adsorption component has the hush pipe, and the end of hush pipe is fixed with the connecting pipe.

Preferably, the adsorption component consists of a clamping groove, an adsorption plate, a dust collection box, a sealing gasket, a mounting frame and a pull ring; the suction box is installed on the output end of induced air subassembly, is provided with the draw-in groove in the suction box, has placed the mounting bracket in the draw-in groove, and the mounting bracket internal fixation has the adsorption plate, and the adsorption plate is placed in the suction box, and the top of mounting bracket is provided with the pull ring, and the contact department between mounting bracket and the suction box is provided with sealed the pad.

Preferably, a filter cover is arranged on the outer side of the tail end of the air inlet pipe, and the filter cover is a C-shaped filter cover.

Preferably, protective nets are arranged in the first ventilation hole, the second ventilation hole and the third ventilation hole.

Compared with the prior art, the utility model discloses following beneficial effect has: the induced draft fan for the environment-friendly energy-saving furnace is internally provided with a base for supporting and fixedly mounting a driving assembly and an induced draft assembly, so that the induced draft fan for the furnace is convenient to use; a rotating shaft at one end of the motor is provided with a heat dissipation fan for cooling the motor, so that the service life of the motor is prolonged, and the motor can be continuously used conveniently; the first vent hole, the second vent hole and the third vent hole are used for improving the cooling effect; the induced draft assembly is internally provided with a sound absorption layer and a silencing pipe, and is used for reducing the noise generated by the induced draft assembly, avoiding noise pollution and improving the environmental protection performance of the induced draft fan for the furnace; the adsorption plate in the adsorption assembly can adsorb dust and harmful substances in the air flow, so that the environmental protection performance of the furnace induced draft fan is improved; the arrangement of the impeller and the blades improves the air induction performance of the induced draft fan for the furnace and saves energy; the induced draft fan for the environment-friendly and energy-saving furnace can adsorb dust and harmful substances in airflow, is energy-saving and environment-friendly, and is convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the draught fan for the environment-friendly and energy-saving furnace of the utility model.

Fig. 2 is a schematic structural diagram of a driving assembly in an induced draft fan for an environmental protection and energy saving furnace.

Fig. 3 is a schematic structural diagram of an induced draft assembly in an induced draft fan for an environment-friendly and energy-saving furnace.

FIG. 4 is a schematic structural diagram of an adsorption component in an induced draft fan for an environment-friendly and energy-saving furnace.

In the figure: 1. supporting legs; 2. a base; 3. a support bar; 4. a support ring; 5. a drive assembly; 6. an air inducing assembly; 7. an air inlet pipe; 8. fixing the tube; 9. a filter housing; 10. an air exhaust hole; 11. fixing the rod; 12. placing a box; 13. a fixed mount; 14. a stationary ring; 15. a motor; 16. a first vent hole; 17. a heat dissipation fan; 18. a second vent hole; 19. a bearing; 20. a rotating shaft; 21. a third vent hole; 22. a protective net; 23. a connecting pipe; 24. a sound-deadening tube; 25. an adsorption component; 26. a sound absorbing layer; 27. a blade; 28. an impeller; 29. a housing; 30. a card slot; 31. an adsorption plate; 32. a dust collection box; 33. a gasket; 34. a mounting frame; 35. and (4) a pull ring.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

As shown in fig. 1-4, an induced draft fan for an environment-friendly and energy-saving furnace comprises a base 2, a driving assembly 5 and an induced draft assembly 6; the lower part of the base 2 is provided with four groups of supporting legs 1, and the four groups of supporting legs 1 are arranged at four corners of the base 2; the upper part of the base 2 is provided with a support rod 3, the top end of the support rod 3 is fixed with a support ring 4, a driving assembly 5 is fixed in the support ring 4, one side of the driving assembly 5 is provided with a fixed pipe 8, the tail end of the fixed pipe 8 is fixed with an induced air assembly 6, one side of the induced air assembly 6, which is far away from the fixed pipe 8, is provided with an air inlet pipe 7, the outer side of the tail end of the air inlet pipe 7 is provided with a filter cover 9, and the filter cover 9 is a C-shaped filter cover 9 and is used for filtering air flow in the air inlet pipe 7; an air exhaust hole 10 is formed in the lower portion of the air inducing assembly 6, a fixing rod 11 is arranged on the lower portion of the air exhaust hole 10, and the lower end of the fixing rod 11 is fixed to the upper portion of the base 2 and used for improving stability of the air inducing assembly 6; the driving assembly 5 consists of a placing box 12, a fixing frame 13, a fixing ring 14, a motor 15, a first ventilation hole 16, a heat dissipation fan 17, a second ventilation hole 18, a bearing 19, a rotating shaft 20, a third ventilation hole 21 and a protective net 22 and is used for driving the induced draft assembly 6 to operate; the placing box 12 is fixed in the supporting ring 4, a fixing frame 13 is arranged in the placing box 12, a fixing ring 14 is fixed in the middle of the fixing frame 13, a motor 15 is arranged in the fixing ring 14, the output end of the motor 15 is connected with a rotating shaft 20, a heat dissipation fan 17 is arranged on the rotating shaft 20, a bearing 19 is arranged at the contact position of the rotating shaft 20 and the placing box 12, a second ventilation hole 18 and a third ventilation hole 21 are respectively arranged on the placing box 12 on the upper side and the lower side of the bearing 19, and a first ventilation hole 16 is arranged on one side, far away from the rotating shaft 20, of the placing box 12 and used for ventilation and heat dissipation; protective nets 22 are arranged in the first vent holes 16, the second vent holes 18 and the third vent holes 21 and used for preventing sundries from entering the placing box 12 and further influencing the operation of the motor 15; the induced draft assembly 6 consists of a connecting pipe 23, a silencing pipe 24, an adsorption assembly 25, a sound absorption layer 26, blades 27, an impeller 28 and a shell 29 and is used for inducing draft; the shell 29 is connected to the fixed pipe 8, the rotating shaft 20 is placed in the fixed pipe 8, the tail end of the rotating shaft 20 is provided with the impeller 28, the impeller 28 is fixed in the shell 29, and the blades 27 are arranged on the periphery of the impeller 28; the outer side of the shell 29 is provided with a sound absorption layer 26 for blocking the transmission of sound; an adsorption component 25 is installed at the lower part of the shell 29, the tail end of the adsorption component 25 is connected with a silencing pipe 24, and a connecting pipe 23 is fixed at the tail end of the silencing pipe 24 and used for being connected to a boiler; the adsorption component 25 consists of a clamping groove 30, an adsorption plate 31, a dust collection box 32, a sealing gasket 33, a mounting frame 34 and a pull ring 35 and is used for adsorbing dust and harmful substances in airflow; suction box 32 installs on the output of induced air subassembly 6, is provided with draw-in groove 30 in the suction box 32, has placed mounting bracket 34 in the draw-in groove 30, and mounting bracket 34 internal fixation has adsorption plate 31, and adsorption plate 31 places in suction box 32, and the top of mounting bracket 34 is provided with pull ring 35, and the department of contact between mounting bracket 34 and the suction box 32 is provided with sealed pad 33 for prevent that air current and dust in the suction box 32 from scattering.

It should be noted that, the utility model relates to an environment-friendly and energy-saving draught fan for furnace, when in use, the base 2 is used for supporting the driving component 5 and the induced draft component 6; a motor 15 in the driving assembly 5 drives a heat dissipation fan 17 to rotate through a rotating shaft 20, so that air around the motor 15 flows, and further the motor 15 is dissipated, the first ventilation hole 16, the second ventilation hole 18 and the third ventilation hole 21 are used for increasing the heat dissipation effect, and a protective net 22 is used for preventing sundries from blocking the operation of the motor 15; the motor 15 drives the impeller 28 and the blades 27 in the induced draft assembly 6 to rotate through the rotating shaft 20, so that the strength of air flow during induced draft is increased under the cooperation of the shell 29; the filter cover 9 and the adsorption component 25 are used for removing dust; the arrangement of the sound absorption layer 26 and the silencing pipe 24 is used for eliminating sound waves generated when the induced draft assembly 6 operates, and further the environmental protection performance of the induced draft fan is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An induced draft fan for an environment-friendly energy-saving furnace comprises a base (2), a driving assembly (5) and an induced draft assembly (6); the method is characterized in that: the lower part of the base (2) is provided with four groups of supporting legs (1), and the four groups of supporting legs (1) are arranged at four corners of the base (2); the upper part of the base (2) is provided with a support rod (3), the top end of the support rod (3) is fixed with a support ring (4), a driving assembly (5) is fixed in the support ring (4), one side of the driving assembly (5) is provided with a fixed pipe (8), the tail end of the fixed pipe (8) is fixed with an induced air assembly (6), and one side, far away from the fixed pipe (8), of the induced air assembly (6) is provided with an air inlet pipe (7); an air exhaust hole (10) is formed in the lower portion of the air inducing assembly (6), a fixing rod (11) is arranged on the lower portion of the air exhaust hole (10), and the lower end of the fixing rod (11) is fixed to the upper portion of the base (2); the driving assembly (5) consists of a placing box (12), a fixing frame (13), a fixing ring (14), a motor (15), a first ventilation hole (16), a heat dissipation fan (17), a second ventilation hole (18), a bearing (19), a rotating shaft (20), a third ventilation hole (21) and a protective net (22); the placing box (12) is fixed in the supporting ring (4), a fixing frame (13) is arranged in the placing box (12), a fixing ring (14) is fixed in the middle of the fixing frame (13), a motor (15) is arranged in the fixing ring (14), the output end of the motor (15) is connected with a rotating shaft (20), a heat dissipation fan (17) is installed on the rotating shaft (20), a bearing (19) is arranged at the contact position of the rotating shaft (20) and the placing box (12), a second ventilation hole (18) and a third ventilation hole (21) are respectively arranged on the placing box (12) on the upper side and the lower side of the bearing (19), and a first ventilation hole (16) is arranged on one side, far away from the rotating shaft (20), of the placing box (12); the induced draft assembly (6) consists of a connecting pipe (23), a silencing pipe (24), an adsorption assembly (25), a sound absorption layer (26), blades (27), an impeller (28) and a shell (29); the shell (29) is connected to the fixed pipe (8), the rotating shaft (20) is placed in the fixed pipe (8), the tail end of the rotating shaft (20) is provided with the impeller (28), the impeller (28) is fixed in the shell (29), and the periphery of the impeller (28) is provided with the blades (27); a sound absorption layer (26) is arranged on the outer side of the shell (29); the lower part of the shell (29) is provided with an adsorption component (25), the tail end of the adsorption component (25) is connected with a silencing pipe (24), and the tail end of the silencing pipe (24) is fixed with a connecting pipe (23).

2. The induced draft fan for the environment-friendly energy-saving furnace according to claim 1, wherein: the adsorption component (25) consists of a clamping groove (30), an adsorption plate (31), a dust collection box (32), a sealing gasket (33), an installation frame (34) and a pull ring (35); the utility model discloses a dust collection box, including suction box (32), mounting bracket (34), adsorption plate (31), suction box (32), mounting bracket (32), suction box (32), mounting bracket (34) and suction box (32), suction box (32) are installed on the output of induced air subassembly (6), are provided with draw-in groove (30) in suction box (32), have placed mounting bracket (34) in draw-in groove (30), and mounting bracket (34) internal fixation has adsorption plate (31), and adsorption plate (31) are placed in suction box (32), and the top of mounting bracket (34) is provided with pull ring (35), and the contact department between mounting bracket (34) and suction box (32) is provided with sealed pad (33).

3. The induced draft fan for the environment-friendly energy-saving furnace according to claim 1, wherein: and a filter cover (9) is arranged on the outer side of the tail end of the air inlet pipe (7), and the filter cover (9) is a C-shaped filter cover (9).

4. The induced draft fan for the environment-friendly energy-saving furnace according to claim 1, wherein: and protective nets (22) are arranged in the first ventilation holes (16), the second ventilation holes (18) and the third ventilation holes (21).