CN2325656Y

CN2325656Y - Low frequency sound wave apparatus for removing ash

Info

Publication number: CN2325656Y
Application number: CN 98200257
Authority: CN
Inventors: 武玉堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-01-09
Filing date: 1998-01-09
Publication date: 1999-06-23
Anticipated expiration: 2008-01-09

Abstract

The utility model relates to a low frequency sound wave soot removing device with steam as the power source, which is composed of a transducing cavity body with a nozzle, a rotor rotating in the cavity body, an air inlet pipe, a shaft coupling, a motor, etc. A spray hole is arranged on the rotor, and when the rotor rotates, the inlet of the nozzle is opened and closed periodically. The utility model is characterized in that the rotor is provided with a hollow air chamber, the spray hole is arranged on the reversely rotating circumferential wall of the air chamber and is communicated with the air chamber, and the nozzle is arranged along the shaft line direction of the spray hole. The utility model has the advantages of reasonable design, reliable use, long service life, etc. and heat deformation is not easy to occur. The utility model is suitable for the removal of the soot deposits and the slag of boilers, smoke pipes, etc.

Description

A kind of low-frequency sound wave dust remover

The utility model relate to a kind of improved be the low frequency acoustic wave soot blower of the energy with steam, belong to the cleaning equipment technical field.

With compressed air or steam is the infrasound or the low frequency acoustic wave soot blower of source of the gas, is widely used in the removing of the interior heat exchanger of station boiler and flue inner surface dust stratification and slagging scorification.Because part power station application of compressed air is used as power may be very not convenient, therefore in recent years, be that gas thin infrasound or low frequency acoustic wave soot blower obtain using more widely in the industry of power station with the superheated steam.

It is the infrasound removing ash of boiler device of source of the gas with steam that Chinese patent discloses for No. 90216015 a kind of, this soot blower is made up of the transducing cavity that has nozzle, the rotor that is provided with spray orifice and motor, shaft coupling etc., when rotor rotates in cavity, can periodically open and close the inlet of nozzle, make the air-flow intermittent control shaking produce infrasound or low-frequency sound wave.This patent also discloses two kinds of versions: a kind of spray orifice is arranged on the rotary turnplate of rotor, and for guaranteeing to have enough circulation bores, the aperture of spray orifice is unsuitable too small, thereby the diameter of rotating disk is bigger; Another kind of spray orifice utilizes armature spindle axle head extended one thin and long circular arc barrel to form, the soot blower of these two kinds of forms in use, rotating disk or circular arc barrel are easily deformable under the high-temperature steam effect, and dynamic loading is also even inadequately, thereby have influenced the normal use and the life-span of soot blower.In addition, the rotor shapes of these two kinds of soot blowers is irregular, and processing does not want to take the trouble yet.

The purpose of this utility model is to provide a kind of improved low-frequency sound wave dust remover, the characteristics that this dust remover should have reasonable in design, be difficult for producing thermal deformation and be easy to processing and manufacturing.

The purpose of this utility model realizes with following technical scheme:

A kind of low-frequency sound wave dust remover, by the transducing cavity that has nozzle, rotor rotated, the air inlet pipe that is connected with cavity, the shaft coupling that is connected with rotor and motor etc. are formed in cavity, rotor can periodically open and close the inlet of nozzle when being provided with spray orifice, rotation, its improvement is, described rotor 2 has the air chamber 4 of hollow, described spray orifice 5 is located on the revolution perisporium of air chamber and with air chamber and is communicated, and described nozzle 3 is along the axis direction setting of spray orifice.

Above-mentioned dust remover, the joint surface of 7 liang of clutches of described shaft coupling is provided with projection 24, and two clutches are separated certain distance.

Above-mentioned dust remover, described air inlet pipe 6 is a convergent-divergent channel.

Above-mentioned dust remover, described nozzle 3 is horn-like.

Above-mentioned dust remover, described spray orifice 5 are slotted hole along the circumferential direction.

Above-mentioned dust remover, the quantity of spray orifice is 2～5 on the described rotor, the revolution of rotor is 1400～2850 rev/mins.

According to design of the present utility model, rotor is one to have the tubular revolving body of hollow gas chamber, its overall structure good rigidly, and the back that is heated is difficult for producing local deformation and the revolution wall is big, is easy to arrange the spray orifice of larger aperture; The regular shape symmetry of parts such as while rotor is easy to processing, therefore, the utlity model has the characteristics such as Q-percentile life is long, processing and manufacturing is easy of using.

Fig. 1 is the utility model structural representation;

Fig. 2 is the A-A profile of Fig. 1;

Fig. 3 is the structural representation of shaft coupling 7 in the utility model;

Fig. 4 is the A-A cutaway view of Fig. 3.

As shown in Figure 1 and Figure 2, rotor 2 passes through the rolling bearing swivel bearing of two walls in transducing cavity 1, the one end by shaft coupling 7 be connected with motor 8, the air chamber 4 of its other end hollow communicates with Lavalle formula air inlet pipe 6, the effect of air chamber is to utilize its bigger chamber to set up stable static pressure, make the air-flow of intermittent flow have enough outburst tolerance and flow velocity, Lavalle formula air inlet pipe helps forming high velocity air; The spray orifice of slotted hole shape can prolong air-flow currency, flow is increased.Choose different spray orifice aperture, quantity and rotor revolution number etc., can obtain different low-frequency sound waves.Spray orifice of the present utility model is 2-5, when rotor revolution number is 1400-2850 rev/min, can produces the low frequency audio frequency of 100～220HZ, and this is comparatively suitable vibration frequency.

For satisfying station boiler ash disposal high-temperature operation environment requirement, shaft coupling of the present utility model is the shaft coupling with heat-proof quality.Among Fig. 3, Fig. 4, on the wheel face of two clutches 21,22 of shaft coupling 7, be provided with some protruding blocks 24, two backrests are separated certain distance, the space one that separates is the heat conduction that can stop between input and the output shaft; The 2nd, flow air can be carried out air-cooledly to shaft coupling in shaft coupling this space of when rotation, and this kind shaft coupling has excellent heat insulation property, can avoid motor to burn when high temperature; Axial displacement when the baffle plate 25,26 in the two clutches outside is used to prevent transmission pin 23 rotations.

The utility model in use, several dust removers can be placed on the boiler wall, make its horn-like nozzle face to each heat-exchange tube in the boiler, the low-frequency sound wave that several dust removers send can be simultaneously or in succession the superficial dust of whole heat-exchange tube is carried out omnibearing vibration and brush, can dispose the dust stratification of heat-exchange tube effectively, can be widely used in the dust stratification operation of removing various boilers and flue.

Claims

1. low-frequency sound wave dust remover, by the transducing cavity that has nozzle, rotor rotated, the air inlet pipe that is connected with cavity, the shaft coupling that is connected with rotor and motor etc. are formed in cavity, rotor can periodically open and close the inlet of nozzle when being provided with spray orifice, rotation, it is characterized in that, described rotor [2] has the air chamber [4] of hollow, described spray orifice [5] is located on the revolution perisporium of air chamber and with air chamber and is communicated, and described nozzle [3] is along the axis direction setting of spray orifice.

2. dust remover according to claim 1 is characterized in that, the joint surface of described shaft coupling [7] two clutches is provided with projection [24], and two clutches are separated certain distance.

3. dust remover according to claim 1 is characterized in that, described air inlet pipe [6] is a convergent-divergent channel.

4. dust remover according to claim 3 is characterized in that, described nozzle [3] is horn-like.

5. dust remover according to claim 4 is characterized in that, described spray orifice [5] is a slotted hole along the circumferential direction.

6. dust remover according to claim 5 is characterized in that, the quantity of spray orifice is 2～5 on the described rotor, and the revolution of rotor is 1400～2850 rev/mins.