CN214036174U

CN214036174U - A recirculation fan for boiler plant for producing steam

Info

Publication number: CN214036174U
Application number: CN202120058911.5U
Authority: CN
Inventors: 闫怀晴
Original assignee: Lianyungang Hongyang Thermal Power Co ltd
Current assignee: Lianyungang Hongyang Thermal Power Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-24
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to the technical field of boiler equipment, concretely relates to a recirculation fan for boiler equipment for producing steam, which comprises a fan volute, wherein a mounting plate is fixed on the left wall of the fan volute, a servo motor is fixed on the mounting plate, a fan is fixed on a power shaft of the servo motor, a wind outlet pipe is arranged on the right wall of the fan volute, a circulation water tank is arranged outside the wind outlet pipe, a heat radiation fin is arranged on the wind outlet pipe, an air inlet pipe is arranged at the top of the fan volute, a dustproof filter plate and a drying frame are sequentially inserted into the other end of the air inlet pipe, a fixed assembly is arranged on the rear wall of the air inlet pipe, and a wind speed sensor, a humidity sensor, a controller and two alarm lamps are sequentially arranged on the top wall of the air inlet pipe; the utility model discloses a dust in the flue gas can effectively be got rid of to the dustproof filter plate that sets up, and the vapor in the flue gas can effectively be got rid of to the drier that sets up in the dry frame simultaneously, and the fixed subassembly of setting can make things convenient for the dismantlement installation of dustproof filter plate and dry frame, and easy operation is convenient.

Description

A recirculation fan for boiler plant for producing steam

Technical Field

The utility model relates to a boiler equipment technical field, concretely relates to a boiler equipment is with recirculating fan for steam production.

Background

In the process of boiler production steam, need use recirculation fan, recirculation fan is arranged in extracting some low temperature flue gas from the flue behind the air heater, and in rethread flue gas circulation recirculation fan sent into boiler furnace, but because some factors can lead to the temperature of the flue gas in the entry of air heater more conventional meeting superelevation, be unfavorable for directly sending into and carry out work in the boiler furnace.

Therefore, a recirculation fan for boiler equipment for producing steam is disclosed in the patent with the publication number of CN212003750U, and comprises a fan volute, an air outlet is arranged on one side of the fan volute, a cooling cylinder is arranged on the fan volute outside the air outlet, an annular water storage tank is arranged in the cooling cylinder, heat-conducting columns are arranged on two sides in the annular water storage tank, two ends of each heat-conducting column penetrate through the cooling cylinder and are connected with a heat-conducting plate, and a plurality of groups of heat-radiating fins are arranged on the heat-conducting plate. However, the device has the following disadvantages when in use: firstly, the device does not have a dustproof function, the extracted low-temperature flue gas usually contains dust, and the dust is easy to attach to the fan and the side wall of the annular water storage tank after the device is used for a long time, so that the cleaning is difficult, and meanwhile, the dust is attached to the side wall of the annular water storage tank, so that the heat conduction effect is poor, and the cooling effect is poor; secondly, the device does not have the dehumidification function, and the extracted low-temperature flue gas usually contains water vapor, so that the water vapor is easy to liquefy when contacting with the side wall of the annular water storage tank, and the generated water stays in the pipeline for a long time and is easy to cause the pipeline to be rusted.

Based on this, the utility model designs a boiler plant is with recirculating fan for steam production to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that provides among the above-mentioned background art, provide a boiler plant is with recirculating fan for steam production.

In order to achieve the above object, the utility model provides a following technical scheme:

a recycling fan for boiler equipment for producing steam comprises a fan volute, wherein a mounting plate is fixed on the left wall of the fan volute, a servo motor is fixed on the mounting plate, a power shaft of the servo motor penetrates through the left wall of the fan volute through a bearing and is fixed with a fan, a fan outlet pipe is arranged on the right wall of the fan volute, a mounting flange is arranged at the right end of the fan outlet pipe, a circulating water tank is arranged outside the fan outlet pipe, radiating fins are arranged on a pipe body of the fan outlet pipe, which is positioned in the circulating water tank, a water inlet pipe is arranged at the top end of the circulating water tank, a water outlet pipe is arranged at the bottom end of the circulating water tank, an air inlet pipe is arranged at the top end of the fan volute, a desulfurization dust remover is arranged at one end of the air inlet pipe, which is close to the fan volute, a dustproof filter plate and a drying frame are sequentially inserted at the other end of the air inlet pipe, and a fixing assembly is arranged at the position, which corresponds to the dustproof filter plate and the drying frame, on the rear wall of the air inlet pipe, the air inlet pipe roof is equipped with air velocity transducer, humidity transducer, controller and two alarm lamps in proper order, air velocity transducer and humidity transducer's inductive probe all sets up in the air inlet pipe.

Furthermore, the air inlet pipe rear wall is provided with a limiting sliding groove corresponding to the position of the fixing component, the fixing component comprises a sliding plate, a reset spring, a pressing block and a first buckling block, the sliding plate is arranged in the limiting sliding groove in a sliding mode, the bottom end of the sliding plate is connected with the bottom wall of the limiting sliding groove through the reset spring, the pressing block is fixed at the top end of the sliding plate, the left side of the sliding plate is fixed with two first buckling blocks, the dustproof filter plate and the rear wall of the drying frame are both fixed with second buckling blocks matched with the first buckling blocks, and a strip-shaped through groove is formed in the position, corresponding to the first buckling block, of the air inlet pipe rear wall.

Furthermore, baffle plates are fixed at the front ends of the dustproof filter plates and the drying frame, and sealing rubber gaskets are arranged at contact ends of the baffle plates and the air inlet pipe.

Furthermore, a silica gel drying agent is filled in the drying frame.

Further, the controller is in signal connection with an air speed sensor, a humidity sensor and an alarm lamp.

Compared with the prior art, the beneficial effects of the utility model are that: firstly, the dust in the flue gas can be effectively removed through the dust-proof filter plate, and meanwhile, the water vapor in the flue gas can be effectively removed through the drying agent arranged in the drying frame; secondly, the dust-proof filter plate and the drying frame can be conveniently disassembled and assembled through the arranged fixing component, and the operation is simple and convenient; thirdly, the utility model discloses a wind speed sensor who sets up can detect the wind speed in the air-intake pipe to judge the dust accumulation condition on the dustproof filter plate, the humidity transducer of setting can detect the humidity in the air-intake pipe, thereby judges the in service behavior of drier, and reports to the police through the corresponding alarm lamp of controller control, thereby changes dustproof filter plate or drier.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the fixing assembly of the present invention;

fig. 3 is a schematic view of the structure of the drying frame of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a fan volute; 2. mounting a plate; 3. a servo motor; 4. a fan; 5. an air outlet pipe; 6. installing a flange; 7. a heat dissipating fin; 8. a circulating water tank; 9. a water inlet pipe; 10. a water outlet pipe; 11. an air inlet pipe; 12. a desulfurizing dust collector; 13. a dustproof filter plate; 14. drying the frame; 15. a fixing assembly; 151. a sliding plate; 152. a return spring; 153. a pressing block; 154. a first buckle block; 16. a wind speed sensor; 17. a humidity sensor; 18. a controller; 19. an alarm lamp; 20. a second buckle block; 21. a limiting chute; 22. a strip-shaped through groove; 23. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides a technical solution: a recirculation fan for boiler equipment for producing steam comprises a fan volute 1, wherein a mounting plate 2 is fixed on the left wall of the fan volute 1, a servo motor 3 is fixed on the mounting plate 2, a power shaft of the servo motor 3 penetrates through the left wall of the fan volute 1 through a bearing and is fixed with a fan 4, an air outlet pipe 5 is arranged on the right wall of the fan volute 1, a mounting flange 6 is arranged at the right end of the air outlet pipe 5, a circulation water tank 8 is arranged outside the air outlet pipe 5, a heat radiating fin 7 is arranged on a pipe body of the air outlet pipe 5 positioned in the circulation water tank 8, a water inlet pipe 9 is arranged at the top end of the circulation water tank 8, a water outlet pipe 10 is arranged at the bottom end of the circulation water tank 8, an air inlet pipe 11 is arranged at the top of the fan volute 1, a desulfurization dust remover 12 is arranged at one end of the air inlet pipe 11 close to the fan volute 1, a dustproof filter plate 13 and a drying frame 14 are sequentially inserted at the other end of the air inlet pipe 11, and a fixing component 15 is arranged at the rear wall of the air inlet pipe 11 corresponding to the dustproof filter plate 13 and the drying frame 14, an air speed sensor 16, a humidity sensor 17, a controller 18 and two alarm lamps 19 are sequentially arranged on the top wall of the air inlet pipe 11, and induction probes of the air speed sensor 16 and the humidity sensor 17 are arranged in the air inlet pipe 11.

Wherein, spacing spout 21 has been seted up to the wall corresponds fixed subassembly 15 position behind air-supply line 11, fixed subassembly 15 includes sliding plate 151, reset spring 152, press briquetting 153 and first knot piece 154, sliding plate 151 slides and sets up in spacing spout 21, the spacing spout 21 diapire is connected through reset spring 152 to sliding plate 151 bottom, press briquetting 153 to fix on the top of sliding plate 151, sliding plate 151 left side is fixed with two first knot pieces 154, dustproof filter plate 13 and dry frame 14 back wall all are fixed with detain piece 20 with first knot piece 154 assorted second, air-supply line 11 back wall corresponds first knot piece 154 position and is provided with the bar and leads to groove 22. The front ends of the dustproof filter plate 13 and the drying frame 14 are both fixed with a baffle plate 23, and a sealing rubber gasket is arranged at the contact end of the baffle plate 23 and the air inlet pipe 11 and used for ensuring the sealing performance of the device. The drying frame 14 is filled with a silica gel desiccant. The controller 18 is in signal connection with the wind speed sensor 16, the humidity sensor 17 and the alarm lamp 19.

One specific application of this embodiment is: the utility model discloses during the use, open servo motor 3, servo motor 3 drives fan 4 and rotates, pass through 11 aspirations of air-supply line with the flue gas, can filter the dust in the flue gas when dustproof filter plate 13, then vapor in the effect of drier under the flue gas obtains absorbing when dry frame 14, then carry out desulfurization treatment to the flue gas through desulfurization dust remover 12, the flue gas after the processing is through going out tuber pipe 5 and discharging, through going out tuber pipe 5, heat in the flue gas is absorbed by the water of continuous circulation in the circulating water tank 8 under fin 7's effect, thereby reach the purpose of cooling. When the air speed sensor 16 detects that the air speed of the air inlet pipe 11 is lower than a preset value, the controller 18 can control one alarm lamp 19 to work to prompt a worker to replace and clean the dustproof filter plate 13, and when the humidity sensor 17 detects that the humidity of the air inlet pipe 11 is higher than the preset value, the controller 18 can control the other alarm lamp 19 to work to prompt the worker to replace the drying agent in the drying frame 14. When the dust-proof filter plate 13 and the drying frame 14 need to be removed, the pressing block 153 is pressed downward, the pressing block 153 drives the sliding plate 151 to move downward, so as to drive the first block 154 to move downward, so that the first block 154 is separated from the second block 20, and the dust-proof filter plate 13 or the drying frame 14 is removed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A recirculation fan for a boiler plant for the production of steam, comprising a fan volute (1), characterized in that: the fan volute (1) left wall is fixed with a mounting plate (2), a servo motor (3) is fixed on the mounting plate (2), a power shaft of the servo motor (3) penetrates through the fan volute (1) left wall through a bearing and is fixed with a fan (4), the fan volute (1) right wall is provided with a wind pipe (5), the wind pipe (5) right end is provided with a mounting flange (6), a circulating water tank (8) is arranged on the wind pipe (5) outer side, a heat radiation fin (7) is arranged on a pipe body of the wind pipe (5) in the circulating water tank (8), a water inlet pipe (9) is arranged on the top of the circulating water tank (8), a water outlet pipe (10) is arranged at the bottom end of the circulating water tank (8), an air inlet pipe (11) is arranged at the top of the fan volute (1), and a desulfurizer (12) is arranged at one end, close to the air inlet pipe (11), of the fan volute (1), the air-supply line is characterized in that a dustproof filter plate (13) and a drying frame (14) are sequentially inserted into the other end of the air-supply line (11), a fixing component (15) is arranged at the position, corresponding to the dustproof filter plate (13) and the drying frame (14), of the rear wall of the air-supply line (11), a wind speed sensor (16), a humidity sensor (17), a controller (18) and two alarm lamps (19) are sequentially arranged on the top wall of the air-supply line (11), and sensing probes of the wind speed sensor (16) and the humidity sensor (17) are arranged in the air-supply line (11).

2. A recirculation fan for a boiler plant for the production of steam according to claim 1, characterized in that: spacing spout (21) have been seted up to air-supply line (11) back wall corresponding fixed subassembly (15) position, fixed subassembly (15) include sliding plate (151), reset spring (152), press block (153) and first knot piece (154), sliding plate (151) slide to set up in spacing spout (21), spacing spout (21) diapire is connected through reset spring (152) in sliding plate (151) bottom, press block (153) to fix on sliding plate (151) top, sliding plate (151) left side is fixed with two first knot pieces (154), dustproof filter plate (13) and drying frame (14) back wall all are fixed with detain piece (20) with first knot piece (154) assorted second, air-supply line (11) back wall is provided with bar logical groove (22) corresponding first knot piece (154) position.

3. A recirculation fan for a boiler plant for the production of steam according to claim 1, characterized in that: and the front ends of the dustproof filter plates (13) and the drying frame (14) are respectively fixed with a baffle plate (23), and a sealing rubber gasket is arranged at the contact end of the baffle plate (23) and the air inlet pipe (11).

4. A recirculation fan for a boiler plant for the production of steam according to claim 1, characterized in that: and a silica gel drying agent is filled in the drying frame (14).

5. A recirculation fan for a boiler plant for the production of steam according to claim 1, characterized in that: the controller (18) is in signal connection with the wind speed sensor (16), the humidity sensor (17) and the alarm lamp (19).