CN213511278U

CN213511278U - Temperature-resistant centrifugal fan with frequency converter

Info

Publication number: CN213511278U
Application number: CN202021667721.5U
Authority: CN
Inventors: 徐磊刚
Original assignee: Guangzhou Yulei Electromechanical Equipment Co ltd
Current assignee: Guangzhou Yulei Electromechanical Equipment Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-06-22
Anticipated expiration: 2030-08-12

Abstract

The utility model discloses a temperature resistant centrifugal fan who is equipped with converter, which comprises a supporting pedestal and i, the upper end fixed mounting who supports the base has the converter install bin, one side fixed mounting of converter install bin has centrifugal casing, centrifugal casing's up end is provided with the air-out end, centrifugal casing's lower terminal surface is provided with the drain pipe, centrifugal casing's inboard sliding connection has the impeller frame, the inboard fixed mounting of impeller frame has the heat insulation axle sleeve, the inboard fixed mounting who separates the heat insulation axle sleeve has the transmission shaft, one side fixed mounting of impeller frame has the end connection piece, one side sliding connection of end connection piece has the water injection pipe, the locating piece is installed in the outside of water injection pipe one end, the outside fixed mounting of locating piece has the air-supply line. The utility model discloses a adjust whole rotational speed, the transport of the control wind speed of being convenient for, and through cooling down and separate the temperature to the high temperature flue gas, can effectively prolong the life of structure.

Description

Temperature-resistant centrifugal fan with frequency converter

Technical Field

The utility model relates to a centrifugal fan technical field specifically is a temperature resistant centrifugal fan who is equipped with converter.

Background

With the rapid development of social economy, fans are used more and more, wherein a centrifugal fan is a machine which increases gas pressure and discharges gas by means of input mechanical energy and is a driven fluid machine; centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

However, when the existing centrifugal fan conveys high-temperature flue gas, the structure is easily damaged, the service life is shortened, and the rotation frequency of the fan is inconvenient to adjust; therefore, the existing requirements are not met, and a temperature-resistant centrifugal fan provided with a frequency converter is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a temperature resistant centrifugal fan who is equipped with converter to solve the current centrifugal fan who proposes in the above-mentioned background art and when carrying the high temperature flue gas, easily produce the damage to the structure, cause life to shorten, and be not convenient for adjust the scheduling problem to the rotational frequency of fan.

In order to achieve the above object, the utility model provides a following technical scheme: a temperature-resistant centrifugal fan provided with a frequency converter comprises a supporting base, wherein the upper end of the supporting base is fixedly provided with a frequency converter installation box, a centrifugal shell is fixedly arranged on one side of the frequency converter mounting box, an air outlet end is arranged on the upper end surface of the centrifugal shell, a drain pipe is arranged on the lower end surface of the centrifugal shell, the inner side of the centrifugal shell is connected with a impeller frame in a sliding way, the inner side of the impeller frame is fixedly provided with a heat insulation shaft sleeve, the inner side of the heat insulation shaft sleeve is fixedly provided with a transmission shaft, one side of the impeller frame is fixedly provided with an end connecting block, one side of the end connecting block is connected with a water injection pipe in a sliding way, a positioning block is arranged on the outer side of one end of the water injection pipe, an air inlet pipe is fixedly arranged on the outer side of the positioning block, the inboard sliding connection of air-supply line one end has the air inlet filter, the other end fixed mounting of air-supply line has the go-between.

Preferably, drive motor is installed to the one end of transmission shaft, drive motor's outside fixed mounting has the motor protection casing, the up end fixed mounting that is located the support base in the below of motor protection casing has two buffering to connect the horizontal bar.

Preferably, the centrifugal shell is connected with the air inlet pipe through a connecting ring, the inner side of the air inlet pipe is provided with two limiting rings through threaded connection, the air inlet filter plate is arranged on the inner side of the limiting rings, and one side of the air inlet filter plate is provided with a ventilation groove.

Preferably, the locating piece and air-supply line welded fastening, the inboard that the locating piece extended to the end connection piece is run through to the one end of water injection pipe, the inboard of the water injection pipe other end is provided with the solenoid valve, the outside of water injection pipe one end is provided with the spray orifice.

Preferably, the end connecting block is fixedly connected with the impeller frame through a screw, a positioning hole is formed in the inner side of one end of the impeller frame, one end of the heat insulation shaft sleeve is fixedly connected with the inner side of the positioning hole through a flat key, and the transmission shaft is connected with the heat insulation shaft sleeve through a flat key.

Preferably, the centrifugal shell and the supporting base are fixedly connected through screws, the upper end of the drain pipe penetrates through the supporting base and is welded and fixed on the lower end face of the centrifugal shell, and a one-way valve is arranged on the inner side of the drain pipe.

Preferably, the transmission motor is fixedly connected with the motor protective cover through screws, and two ends of the motor protective cover are fixedly connected with the buffer connecting transverse bar through studs.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an one end of transmission shaft and impeller frame are through separating the temperature bushing and being connected, can effectively carry out the operation of separating the temperature through separating the temperature bushing when carrying high temperature flue gas, the stability of protection transmission shaft operation, the end connection piece passes through the screw connection with the impeller frame to be fixed, and then can fix a position and the shutoff to a terminal member of water injection pipe through the end connection piece, the other end and the external pipeline of water injection pipe are connected, and then can cool down the high temperature flue gas of carrying through the spraying hole that is provided with in the outside of water injection pipe one end, be convenient for protect the safety of overall structure;

2. the utility model discloses a lower terminal surface at centrifugal shell is provided with the drain pipe, can discharge unnecessary rivers, avoids influencing the use of leaf wheel carrier, is provided with the converter in the inboard of converter install bin, can carry out the speed governing to the whole through the converter, and variable frequency speed governing is applicable to the speed governing scope wide, and often is in the occasion of operation under the low-load state.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a side view of the utility model in its entirety;

fig. 3 is a schematic view of a partial cross-sectional structure of the centrifugal housing of the present invention;

fig. 4 is a schematic view of a partial cross-sectional structure of the vane wheel frame of the present invention.

In the figure: 1. a support base; 2. buffering the connecting horizontal bar; 3. a motor protective cover; 4. a drive motor; 5. a centrifugal housing; 6. an air outlet end; 7. an air inlet pipe; 8. an air inlet filter plate; 9. positioning blocks; 10. a water injection pipe; 11. a frequency converter installation box; 12. a drive shaft; 13. an impeller frame; 14. a heat insulation shaft sleeve; 15. an end connecting block; 16. a connecting ring; 17. and a water discharge pipe.

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.

Referring to fig. 1 to 4, the present invention provides an embodiment: a temperature-resistant centrifugal fan provided with a frequency converter comprises a supporting base 1, a frequency converter installation box 11 is fixedly installed at the upper end of the supporting base 1, a centrifugal shell 5 is fixedly installed at one side of the frequency converter installation box 11, an air outlet end 6 is arranged at the upper end face of the centrifugal shell 5, a drain pipe 17 is arranged at the lower end face of the centrifugal shell 5, a blade wheel frame 13 is slidably connected to the inner side of the centrifugal shell 5, a temperature-insulating shaft sleeve 14 is fixedly installed at the inner side of the blade wheel frame 13, a transmission shaft 12 is fixedly installed at the inner side of the temperature-insulating shaft sleeve 14, an end connecting block 15 is fixedly installed at one side of the blade wheel frame 13, a water injection pipe 10 is slidably connected to one side of the end connecting block 15, a spray hole is formed in the outer side of one end of the water injection pipe 10, the high-temperature flue gas to be conveyed can be cooled, the, the inboard sliding connection of air-supply line 7 one end has air inlet filter 8, and one side of air inlet filter 8 is provided with ventilative groove, is convenient for carry out the entering that the dismouting avoided debris to air inlet filter 8, and the other end fixed mounting of air-supply line 7 has go-between 16, through adjusting whole rotational speed, the transport of the control wind speed of being convenient for, and through cooling down and separate the temperature to the high temperature flue gas, can effectively prolong the life of structure. The transmission motor 4 (model YEJ3-112M-4) can be purchased from market or customized.

Further, a transmission motor 4 is installed at one end of the transmission shaft 12, a motor protective cover 3 is fixedly installed on the outer side of the transmission motor 4, and two buffer connecting cross bars 2 are fixedly installed on the upper end face of the support base 1 below the motor protective cover 3.

Through adopting above-mentioned technical scheme, buffering connection horizontal bar 2 can play fine support and the effect of buffering when transmission motor 4 moves.

Further, the centrifugal shell 5 is connected with the air inlet pipe 7 through a connecting ring 16, two limiting rings are arranged on the inner side of the air inlet pipe 7 through threaded connection, the air inlet filter plate 8 is arranged on the inner side of the limiting rings, and a ventilation groove is formed in one side of the air inlet filter plate 8.

Through adopting above-mentioned technical scheme for can carry out the dismouting to air inlet filter 8 through carrying out the dismouting to the spacing ring, convenient to use avoids the entering of debris.

Furthermore, the positioning block 9 is welded and fixed with the air inlet pipe 7, one end of the water injection pipe 10 penetrates through the positioning block 9 and extends to the inner side of the end connecting block 15, the electromagnetic valve is arranged on the inner side of the other end of the water injection pipe 10, and the spraying hole is formed in the outer side of one end of the water injection pipe 10.

Through adopting above-mentioned technical scheme, can cool down the high temperature flue gas of carrying, be convenient for protect overall structure's safety.

Furthermore, the end connecting block 15 is fixedly connected with the impeller frame 13 through a screw, a positioning hole is formed in the inner side of one end of the impeller frame 13, one end of the heat insulation shaft sleeve 14 is fixedly connected with the inner side of the positioning hole through a flat key, and the transmission shaft 12 is connected with the heat insulation shaft sleeve 14 through a flat key.

Through adopting above-mentioned technical scheme, can effectively carry out the operation of insulating temperature through insulating temperature axle sleeve 14, protect the stability of transmission shaft 12 operation.

Further, the centrifugal shell 5 and the support base 1 are fixedly connected through screws, the upper end of the water discharge pipe 17 penetrates through the support base 1 and is fixed on the lower end face of the centrifugal shell 5 in a welding mode, and a one-way valve is arranged on the inner side of the water discharge pipe 17.

By adopting the technical scheme, redundant water flow can be discharged, and the use of the impeller frame 13 is prevented from being influenced.

Further, the transmission motor 4 and the motor protective cover 3 are fixedly connected through screws, and two ends of the motor protective cover 3 and the buffer connecting transverse bar 2 are fixedly connected through studs.

Through adopting above-mentioned technical scheme, connect horizontal bar 2 through the buffering and support motor protection casing 3, the motor protection casing 3 of being convenient for protects driving motor 4.

The working principle is as follows: when in use, whether the functions of all parts are intact is checked, two buffer connecting horizontal strips 2 are fixedly arranged on the upper end surface of a support base 1, a motor protective cover 3 and the buffer connecting horizontal strips 2 are fixedly connected through a stud, the buffer connecting horizontal strips 2 can play a good supporting and buffering role when a transmission motor 4 runs, one end of a transmission shaft 12 is connected with an impeller frame 13 through a heat insulation shaft sleeve 14, the heat insulation operation can be effectively carried out through the heat insulation shaft sleeve 14 when high-temperature smoke is conveyed, the running stability of the transmission shaft 12 is protected, a power supply is switched on, the transmission motor 4 is started, the transmission shaft 12 drives the impeller frame 13 to rotate on the inner side of a centrifugal shell 5 through the heat insulation shaft sleeve 14, the centrifugal discharge of gas can be realized, an end connecting block 15 is fixedly connected with the impeller frame 13 through a screw, and one end part of a water injection pipe 10 can be positioned and plugged through the end connecting block 15, the other end and the external pipe connection of water injection pipe 10, and then the spray hole that is provided with in the outside through water injection pipe 10 one end can cool down the high temperature flue gas of transport, be convenient for protect overall structure's safety, and be provided with drain pipe 17 at centrifugal casing 5's lower terminal surface, can discharge unnecessary rivers, avoid influencing impeller frame 13's use, inboard at air-supply line 7 is provided with two spacing rings, air inlet filter 8 sets up the inboard at the spacing ring, make and to carry out the dismouting to air inlet filter 8 through carrying out the dismouting to the spacing ring, convenient to use, avoid the entering of debris, inboard at converter install bin 11 is provided with the converter, can carry out the speed governing to the whole through the converter, variable frequency speed governing is applicable to the speed governing scope and is wide, and often is in the occasion of moving under the low-load state.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a temperature resistant centrifugal fan of being equipped with converter, includes the support base, its characterized in that: the utility model discloses a centrifugal fan, including support base, one side fixed mounting of support base has the converter install bin, one side fixed mounting of converter install bin has centrifugal casing, centrifugal casing's up end is provided with the air-out end, centrifugal casing's lower terminal surface is provided with the drain pipe, centrifugal casing's inboard sliding connection has the impeller frame, the inboard fixed mounting of impeller frame has the temperature-isolating axle sleeve, the inboard fixed mounting who separates the temperature-isolating axle sleeve has the transmission shaft, one side fixed mounting of impeller frame has the end connection piece, one side sliding connection of end connection piece has the water injection pipe, the locating piece is installed in the outside of water injection pipe one end, the outside fixed mounting of locating piece has the air-supply line, the inboard sliding connection of air-supply line one end has the air inlet filter.

2. The temperature-resistant centrifugal fan with the frequency converter according to claim 1, wherein: the transmission motor is installed to the one end of transmission shaft, transmission motor's outside fixed mounting has the motor protection casing, the up end fixed mounting that is located the support base in the below of motor protection casing has two buffering connection crossbands.

3. The temperature-resistant centrifugal fan with the frequency converter according to claim 1, wherein: the centrifugal shell is connected with the air inlet pipe through the connecting ring, the inner side of the air inlet pipe is provided with two limiting rings through threaded connection, the air inlet filter plate is arranged on the inner side of the limiting rings, and one side of the air inlet filter plate is provided with a ventilation groove.

4. The temperature-resistant centrifugal fan with the frequency converter according to claim 1, wherein: the locating piece and air-supply line welded fastening, the inboard that the locating piece extended to the end connection piece is run through to the one end of water injection pipe, the inboard of the water injection pipe other end is provided with the solenoid valve, the outside of water injection pipe one end is provided with the spray hole.

5. The temperature-resistant centrifugal fan with the frequency converter according to claim 1, wherein: the end connecting block is fixedly connected with the impeller frame through a screw, a positioning hole is formed in the inner side of one end of the impeller frame, one end of the heat insulation shaft sleeve is fixedly connected to the inner side of the positioning hole through a flat key, and the transmission shaft is connected with the heat insulation shaft sleeve through a flat key.

6. The temperature-resistant centrifugal fan with the frequency converter according to claim 1, wherein: the centrifugal shell and the supporting base are fixedly connected through screws, the upper end of the drain pipe penetrates through the supporting base and is welded and fixed on the lower end face of the centrifugal shell, and a one-way valve is arranged on the inner side of the drain pipe.

7. The temperature-resistant centrifugal fan with the frequency converter according to claim 2, wherein: the transmission motor is fixedly connected with the motor protective cover through screws, and the two ends of the motor protective cover are fixedly connected with the buffer connecting transverse bar through studs.