CN211715358U

CN211715358U - Centrifugal fan for power plant

Info

Publication number: CN211715358U
Application number: CN202020312164.9U
Authority: CN
Inventors: 王庆红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-10-20
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses a centrifugal fan for power plant, which comprises a fan body, wherein the fan body comprises a first fan cover, a second fan cover, a filter cylinder and a motor, the other side of the filter cylinder is welded with an inlet pipe, the top of the first fan cover and the second fan cover are both welded with outlet pipes, the top of the second fan cover is provided with a valve, one side of the filter cylinder is welded with a connecting pipe, the connecting pipe is provided with a rotary valve, the connecting pipe is provided with a bayonet lock and a pin, the bayonet lock is arranged on one side of the pin, the centrifugal fan for power plant can adjust the conveying pressure and the gas conveying capacity so as to flexibly adjust according to different use requirements of the power plant, is convenient to use, can effectively filter and clear impurities in the gas, avoids the impurities from entering the inner side of the equipment, influences the normal work of the equipment, can automatically clear the equipment, and does not need personnel, and then can ensure the long-time stable work of equipment and use, be applicable to the transport of the gas of power plant and use.

Description

Centrifugal fan for power plant

Technical Field

The utility model relates to a fan technical field of power plant specifically is a power plant uses centrifugal fan.

Background

A large number of centrifugal fans are often needed to convey hot and cold gases in a power plant, and a utility model with the patent application publication number of CN201621322226.4 discloses a centrifugal fan for a thermal power plant, wherein the existing centrifugal fan for the power plant basically has the advantages of firm structure, convenient use, large air volume conveying capacity, durability, convenient installation and the like, can meet the use requirement of conveying the hot and cold gases in the power plant, but for the existing centrifugal fan for the power plant, on one hand, the gas conveying capacity and the adjustment of conveying pressure can not be adjusted according to the requirement, so as to meet the requirements of different gas delivery, on the other hand, the gas-filtering device does not have the filtering function and is not beneficial to ensuring the cleanliness of other delivered gases, moreover, the common filtering equipment needs to be cleaned by personnel frequently, so that the labor consumption is increased, and the long-time working and use of the centrifugal fan are not facilitated.

Therefore, how to design a centrifugal fan for a power plant becomes a problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a not enough to prior art exists, the utility model aims at providing a power plant uses centrifugal fan to solve the problem that proposes in the above-mentioned background art, the utility model relates to a rationally, it is comparatively convenient during the use, be applicable to the gaseous transport of power plant and use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a centrifugal fan for power plant, includes the fan body, the fan body includes fan housing one, fan housing two, strains a section of thick bamboo and motor, the motor passes through the bolt and installs in one side of fan housing one, the opposite side at fan housing one is welded to fan housing two, it welds the opposite side at fan housing two to strain a section of thick bamboo, the exit tube has all been welded at the top of fan housing one and fan housing two, the valve is installed at the top of fan housing two, the one side welding of straining a section of thick bamboo has a connecting pipe, even install the change valve on the pipe, even install bayonet lock and pin on the pipe, the bayonet lock sets up in one side of pin, the bin gate is installed to the bottom of straining a section of thick bamboo, one side of motor is provided with the main shaft, the main shaft passes through sealed axle and installs respectively in the center department of fan housing one and fan, the filter cartridge is characterized in that connecting openings are formed in the other sides of the first fan cover and the second fan cover, an opening is formed in the bottom of the second fan cover, a filter screen is installed on the inner wall of the filter cartridge through a bolt, and a scraper is arranged on one side of the filter screen.

As a preferred embodiment of the present invention, one side of the scraper is clamped at the other side of the filter screen, and the scraper is installed at the center of the filter screen through the rotating shaft.

As a preferred embodiment of the present invention, the filter cartridge is communicated with the first fan housing through the connecting port, and the filter cartridge is communicated with the first fan housing through the connecting pipe and the connecting port.

As a preferred embodiment of the utility model, change the valve and install the one side at the opening through the pivot, the external diameter of changeing the valve equals the internal diameter of connecting the pipe, bayonet lock and pin are all installed on the connecting pipe through the screw thread, the top of bayonet lock and pin all passes the outer wall of connecting the pipe and extends to the inboard of connecting the pipe, bayonet lock and pin all cooperate with changeing the valve.

As a preferred embodiment of the present invention, the one end of the main shaft is disposed inside the second fan housing, and the other end of the main shaft sequentially passes through the first sealing shaft, the connecting port, the first fan housing and the sealing shaft and is mounted on the output shaft of the motor through the bolt.

As a preferred embodiment of the present invention, the first fan blade is disposed inside the first fan housing, and the second fan blade is disposed inside the second fan housing.

As a preferred embodiment of the utility model, the bayonet socket has been seted up to the bottom of straining a section of thick bamboo, the door passes through the screw thread and installs the inboard at the bayonet socket.

The utility model has the advantages that: the utility model discloses a power plant uses centrifugal fan, include fan housing one, fan housing two, strain a section of thick bamboo, motor, advance pipe, exit tube, valve, even pipe, change valve, bayonet lock, pin, door, main shaft, sealed axle, even mouth, flabellum one, flabellum two, opening, filter screen, scraper blade.

1. This centrifugal fan for power plant owing to be provided with fan housing one, fan housing two, valve, connecting pipe, change valve, sealed axle, even mouth, flabellum one, flabellum two and opening, can effectually be according to the characteristics of the gaseous of carrying, the size of the pressure of adjustment transport and gas delivery volume to carry out nimble adjustment, convenient to use according to the different user demands of power plant.

2. This centrifugal fan for power plant owing to be provided with and strain a section of thick bamboo, advance pipe, door, even mouth, opening, filter screen and scraper blade, can effectually filter the impurity in the gas and clear away, avoids impurity entering equipment's inboard, influences the normal work of equipment to can carry out the automatic clearance, do not need personnel to dismantle and wash the filter screen, and then can ensure the long-time stable work of equipment and use.

3. This centrifugal fan for power plant reasonable in design, comparatively high-efficient safety during the use is applicable to the transport of the gas of power plant and uses.

Drawings

FIG. 1 is a schematic structural view of a centrifugal fan for a power plant according to the present invention;

FIG. 2 is a cross-sectional view of a centrifugal fan for a power plant according to the present invention;

in the figure: 1-a first fan cover, 2-a second fan cover, 3-a filter cartridge, 4-a motor, 5-an inlet pipe, 6-an outlet pipe, 7-a valve, 8-a connecting pipe, 9-a rotary valve, 10-a bayonet lock, 11-a pin, 12-a bin door, 13-a main shaft, 14-a sealing shaft, 15-a connecting port, 16-a first fan blade, 17-a second fan blade, 18-a through port, 19-a filter screen and 20-a scraper.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 2, the present invention provides a technical solution: the utility model provides a centrifugal fan for power plant, includes the fan body, the fan body includes fan housing one 1, fan housing two 2, strains a 3 and a motor 4, the one side at fan housing one 1 is installed through the bolt to motor 4, the opposite side at fan housing one 1 is welded to fan housing two 2, it welds at the opposite side of fan housing two 2 to strain a 3 welding, the opposite side welding of straining a 3 has into pipe 5, exit tube 6 has all been welded at the top of fan housing one 1 and fan housing two 2, valve 7 is installed at the top of fan housing two 2, it has linking pipe 8 to strain one side welding of a 3, it installs rotary valve 9 on linking pipe 8, even install bayonet lock 10 and pin 11 on the pipe 8, bayonet lock 10 sets up the one side at pin 11, it installs bin gate 12 to strain the bottom of a 3, one side of motor 4 is provided with main shaft 13, main shaft 13 passes through sealed axle 14 and installs respectively in the center department of fan housing one 1, the fan blade assembly is characterized in that a fan blade I16 and a fan blade II 17 are welded on the outer side of the main shaft 13, connecting openings 15 are formed in the other sides of the fan cover I1 and the fan cover II 2, an opening 18 is formed in the bottom of the fan cover II 2, a filter screen 19 is installed on the inner wall of the filter cartridge 3 through bolts, and a scraper 20 is arranged on one side of the filter screen 19.

As a preferred embodiment of the utility model, one side card of scraper blade 20 is at the opposite side of filter screen 19, scraper blade 20 is installed in the center department of filter screen 19 through the pivot, can utilize filter screen 19 to filter, drives scraper blade 20 through the air current and clears up filter screen 19, prevents that filter screen 19 from being blockked.

As a preferred embodiment of the present invention, the filter cartridge 3 is communicated with the second fan housing 2 through the connection port 15, and the filter cartridge 3 is communicated with the first fan housing 1 through the connection pipe 8 and the connection port 15.

As a preferred embodiment of the utility model, change valve 9 and install the one side at opening 18 through the pivot, the external diameter of changeing valve 9 equals the internal diameter of connecting pipe 8, bayonet lock 10 and pin 11 are all installed on connecting pipe 8 through the screw thread, bayonet lock 10 and the top of pin 11 all pass the outer wall of connecting pipe 8 and extend to the inboard of connecting pipe 8, bayonet lock 10 and pin 11 all cooperate with change valve 9, can adjust valve 7 and change valve 9 as required to the transport wind pressure and the airflow of adjusting device are convenient for use in a flexible way.

As a preferred embodiment of the present invention, one end of the main shaft 13 is disposed inside the second fan housing 2, and the other end of the main shaft 13 sequentially passes through the sealing shaft 14, the connecting port 15, the first fan housing 1 and the sealing shaft 14 and is mounted on the output shaft of the motor 4 through a bolt.

As a preferred embodiment of the present invention, the fan blade 16 is disposed inside the fan housing 1, the fan blade 17 is disposed inside the fan housing 2, and the motor 4 simultaneously drives the fan blade 16 and the fan blade 17 to rotate, so that the air in the fan housing 1 and the fan housing 2 rotates and generates centrifugal force, thereby forming wind pressure.

As a preferred embodiment of the present invention, the bottom of the filter cartridge 3 is provided with a bayonet, and the door 12 is installed in the inner side of the bayonet through a screw thread, so that the impurities in the filter cartridge 3 can be cleaned by opening the door 12 when the machine is stopped.

The working principle is as follows: the centrifugal fan for the power plant provides electric energy for all electric equipment through an external power supply, when the centrifugal fan for the power plant is used, the external switch of the centrifugal fan for the power plant is used for conveying other air volume and conveying air pressure to adjust according to needs, when higher conveying air pressure is needed, the valve 7 is closed, the rotary valve 9 is rotated to the top of the pin 11, the rotary valve 9 is fixed through the pin 11, the connecting pipe 8 is closed at the moment, the switch is opened, the motor 4 drives the fan blade I16 and the fan blade II 17 to rotate through the spindle 13, so that the air of the fan housing II 2 is driven by the fan blade II 17 to rotate so as to generate centrifugal force, the air enters the connecting pipe 8 through the through opening 18 and then enters the inner side of the fan housing I1 through the connecting opening 15, and then is pressurized through the fan blade I16, so that the air has higher air pressure at the outlet pipe 6, when the conveying amount of the air needs to, the rotary valve 9 is fixed by screwing the bayonet pin 10, at the moment, the fan blade I16 and the fan blade II 17 both suck gas through the connecting port 15 and are conveyed upwards through the outlet pipe 6, thereby increasing the conveying capacity of the gas, effectively adjusting the conveying pressure and the conveying capacity of the gas according to the characteristics of the conveyed gas, so as to be flexibly adjusted according to different use requirements of a power plant and convenient to use, when the gas filter is in operation, gas enters the filter cylinder 3 through the inlet pipe 5, impurities are filtered by the filter screen 19, the scraper 20 is driven by airflow to rotate to scrape the impurities on the filter screen 19 to the outer side of the filter screen 19, the impurities in the gas can be effectively filtered and removed, the impurities are prevented from entering the inner side of equipment and affecting the normal operation of the equipment, and can carry out automatic clearance, do not need personnel to dismantle and wash filter screen 19, and then can ensure the long-time stable work of equipment and use.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a centrifugal fan for power plant, includes the fan body, its characterized in that: the fan body comprises a first fan cover (1), a second fan cover (2), a filter cartridge (3) and a motor (4), wherein the motor (4) is installed on one side of the first fan cover (1) through bolts, the second fan cover (2) is welded on the other side of the first fan cover (1), the filter cartridge (3) is welded on the other side of the second fan cover (2), the other side of the filter cartridge (3) is welded with an inlet pipe (5), outlet pipes (6) are welded at the tops of the first fan cover (1) and the second fan cover (2), a valve (7) is installed at the top of the second fan cover (2), a connecting pipe (8) is welded on one side of the filter cartridge (3), a rotary valve (9) is installed on the connecting pipe (8), a clamping pin (10) and a pin (11) are installed on the connecting pipe (8), the clamping pin (10) is arranged on one side of the pin (11), and a bin door (12) is, one side of motor (4) is provided with main shaft (13), install the center department in fan housing (1) and fan housing two (2) respectively through sealed axle (14) main shaft (13), the outside side welding of main shaft (13) has fan blade (16) and fan blade two (17), fan housing (1) and fan housing two (2) opposite side have all been seted up and have been linked mouthful (15), opening (18) have been seted up to the bottom of fan housing two (2), install filter screen (19) through the bolt on straining the inner wall of section of thick bamboo (3), one side of filter screen (19) is provided with scraper blade (20).

2. A centrifugal fan for a power plant according to claim 1, characterized in that: one side of the scraper (20) is clamped at the other side of the filter screen (19), and the scraper (20) is installed at the center of the filter screen (19) through a rotating shaft.

3. A centrifugal fan for a power plant according to claim 1, characterized in that: the filter cylinder (3) is communicated with the second fan cover (2) through a connecting opening (15), and the filter cylinder (3) is communicated with the first fan cover (1) through a connecting pipe (8) and the connecting opening (15).

4. A centrifugal fan for a power plant according to claim 1, characterized in that: it installs the one side at opening (18) through the pivot to change valve (9), the external diameter of changeing valve (9) equals the internal diameter of connecting pipe (8), bayonet lock (10) and pin (11) are all installed on connecting pipe (8) through the screw thread, the top of bayonet lock (10) and pin (11) all passes the outer wall of connecting pipe (8) and extends to the inboard of connecting pipe (8), bayonet lock (10) and pin (11) all cooperate with commentaries on classics valve (9).

5. A centrifugal fan for a power plant according to claim 1, characterized in that: one end of the main shaft (13) is arranged on the inner side of the second fan cover (2), and the other end of the main shaft (13) sequentially penetrates through the sealing shaft (14), the connecting port (15), the first fan cover (1) and the sealing shaft (14) and is installed on an output shaft of the motor (4) through bolts.

6. A centrifugal fan for a power plant according to claim 1, characterized in that: the fan blade I (16) is arranged on the inner side of the fan cover I (1), and the fan blade II (17) is arranged on the inner side of the fan cover II (2).

7. A centrifugal fan for a power plant according to claim 1, characterized in that: the bottom of the filter cylinder (3) is provided with a bayonet, and the bin gate (12) is installed on the inner side of the bayonet through threads.