CN2835825Y - Enhanced low-frequency acoustic wave ash blower - Google Patents
Enhanced low-frequency acoustic wave ash blower Download PDFInfo
- Publication number
- CN2835825Y CN2835825Y CN 200520045944 CN200520045944U CN2835825Y CN 2835825 Y CN2835825 Y CN 2835825Y CN 200520045944 CN200520045944 CN 200520045944 CN 200520045944 U CN200520045944 U CN 200520045944U CN 2835825 Y CN2835825 Y CN 2835825Y
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- cylinder
- ring
- acoustic wave
- frequency acoustic
- stationary ring
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Abstract
The utility model relates to an enhanced low-frequency acoustic wave ash blower applied to heat exchangers for fume containing ash for efficiently removing ash accumulated on the heating surface, particularly to removing ash accumulated on the heating surface efficiently for steam superheaters, coal economizers, air preheaters, etc. The enhanced low-frequency acoustic wave ash blower comprises a movable flange, an air inlet pipe, an air outlet pipe, a shaft, a ball bearing and a cylinder. The utility model is characterized in that a stationary ring is fixedly connected with a shell of the cylinder; one end of the shaft is in a hollow cavity structure to form a movable ring, the stationary ring is sheathed outside the movable ring; the stationary ring and the movable ring are positioned on the central line of the cylinder; the circumferential walls of the stationary ring and the movable ring are provided with two circular through holes, and the centre angle clamped by the two through holes is 180 DEG; the position of the through hole on the stationary ring is completely corresponding to the position of the through hole on the movable ring. The air inlet pipe is positioned on the circumferential wall of the cylinder; the air outlet pipe is communicated with the hollow cavity of the movable ring.
Description
Technical field
The utility model is a kind of enhancement mode low frequency acoustic wave soot blower that ash-laden gas heat exchangers such as boiler are efficiently removed fouling of heating surface that is applied to, particularly to the efficient deashing of heating surfaces such as steam superheater, economizer and air preheater.
Background technology
The existing compressed air (or steam) that utilizes is the low frequency acoustic wave soot blower of power, and its structure is a cavity rotor that rotates in cylindrical housing, and shell has former and later two end caps, has a pipeline to be connected with source of the gas on the drive end bearing bracket; Compressed air enters the cavity rotor by the pipeline on the drive end bearing bracket, has four or two circular holes, case peripheral wall on the rotor perisporium and have a circular hole on the position corresponding with the rotor circular hole, and be connected with the conduit of output sound wave.When the circular hole on the rotor wall when circular hole on the shell wall overlaps, the compressed air in the cavity rotor just enters acoustic waveguide tube and forms a pulse.The intensity of pulse is high more, and the sound intensity energy level that converts to is also high more.Because the air storage space of cavity rotor is very little, compressed air is not had pressure stabilization function, so the conversion efficiency of acoustic energy is very low, can only when surpassing 0.6MPa, gas pressure could obtain the acoustic energy of 130~135dB, the low frequency acoustic wave soot blower of this structure, can not be adapted to the requirement of limited capacity source of the gas, make the soot blower effect not ideal enough.
Summary of the invention
The utility model is the shortcoming that overcomes above-mentioned low frequency acoustic wave soot blower, provides a kind of acoustic energy is had the enhancement mode low frequency acoustic wave soot blower of high-conversion rate, and the utility model is to realize like this.A kind of enhancement mode low frequency acoustic wave soot blower, include loose flange 1, air inlet pipe 12, blast pipe 15, axle 10, ball bearing 6, cylinder 5, it is characterized in that stationary ring 2 is fixedlyed connected with cylinder 5 shells, axle 10 1 ends are that cavity structure forms rotating ring 14, and stationary ring is enclosed within the outside of rotating ring; Stationary ring and rotating ring are positioned on the center line of cylinder 5; Have all on the circumference wall of stationary ring 2 and rotating ring 14 that folded central angle is 180 ° between 13, two through holes of two manholes; Lead to the hole site on the stationary ring is corresponding fully with lead to the hole site on the rotating ring.
Operation principle of the present utility model is, rotating ring 14 is rotation at a high speed under the drive of motor 20, and the compressed air of the 0.7MPa that is entered by air inlet pipe 12 is full of cylinder 5.When relative coincidence of through hole on the through hole on the rotating ring wall and the stationary ring wall, compressed air just enters the rotating ring inner chamber from cylinder, and enters acoustic waveguide tube 16 through blast pipe 15, enters heat exchanger 17 from opening part at last, forms a high-voltage pulse; When rotation through hole and fixed via staggered, compressed air stopped discharge, then is atmospheric pressure state in blast pipe and even the heat exchanger.Rotating ring rotates a circle and produces two high-voltage pulses, for 2960 rev/mins motor, and 100 high-voltage pulses of the approximate generation of per second, Here it is is similar to 100 hertz low-frequency sound wave.
The key of sound wave energy level has two: 1 so the utility model can strengthen, the pressure stabilization function of large volume cylinder 5, and it is too big that the air pressure when through hole 13 is opened is unlikely decline, promptly increased the amplitude of sound wave; 2, traditional structure is the exhaust of single-pass hole, and the utility model is the doubled via exhaust, has reduced the restriction loss when through hole opens and closes, and the sawtooth waveforms form of original pulse is improved as near the square wave form, this also causes the increase of sonic wave amplitude, just the raising of acoustic energy conversion efficiency.When compressed air pressure during at 0.6MPa, the sound intensity can reach more than the 140dB, the sound intensity also can remain on more than the 130dB when air pressure step-down 0.3MPa, when the user provides large-scale source of the gas for oneself and has any problem, can purchase flow and only be the air compressor of soot blower rated air consumption 1/3rd, be equipped with one 0.8~1 cubic metre gas tank in addition, just can reach satisfied ash-removal effect.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is that the utility model uses structural representation.
Labyrinth axle envelopes in 1 loose flange, 2 stationary rings, 3,4 inside caps, 5 cylinders, 6 ball bearings, 7 outer bearing covers, 8 outer labyrinth axle envelopes, 9 oil-resistant seal rings, 10,11O RunddichtringO, 12 air inlet pipe, 13 manholes, 14 rotating rings, 15 blast pipes, 16 acoustic waveguide tubes, 17 heat exchangers, 18 finned tubes, 19 shaft couplings, 20 motor.
The specific embodiment
A kind of enhancement mode low frequency acoustic wave soot blower includes loose flange 1, air inlet pipe 12, blast pipe 15, axle 10, ball bearing 6, cylinder 5, and stationary ring 2 is fixedlyed connected with cylinder 5 shells, and axle 10 1 ends are that cavity structure forms rotating ring 14, and stationary ring is enclosed within the outside of rotating ring; Stationary ring and rotating ring are positioned on the center line of cylinder 5; Have all on the circumference wall of stationary ring 2 and rotating ring 14 that folded central angle is 180 ° between 13, two through holes of two manholes.Air inlet pipe 12 is positioned on the circumference wall of cylinder 5, and blast pipe 15 communicates with the cavity of rotating ring 14.The front portion of axle is connected with two ball bearings 6, has labyrinth axle envelope 3 and 8 on the inner peripheral surface of inside cap 4 and outer bearing cover 7 respectively.Inside cap 4 is being inlaid with O RunddichtringO 11 on stationary ring 2 contacted end faces.The end of outer bearing cover 7 is inlaid with oil-resistant seal ring 9 one.The reservoir volume of cylinder is at least ten times of rotating ring cavity volume.
Claims (6)
1, a kind of enhancement mode low frequency acoustic wave soot blower, include loose flange (1), air inlet pipe (12), blast pipe (15), axle (10), ball bearing (6), cylinder (5), it is characterized in that, stationary ring (2) is fixedlyed connected with cylinder (5) shell, axle (10) one ends are that cavity structure forms rotating ring (14), and stationary ring is enclosed within the outside of rotating ring; Stationary ring and rotating ring are positioned on the center line of cylinder (5); All have two manholes (13) on the circumference wall of stationary ring (2) and rotating ring (14), folded central angle is 180 ° between two through holes.
According to the described enhancement mode low frequency acoustic wave soot blower of claim 1, it is characterized in that 2, air inlet pipe (12) is positioned on the circumference wall of cylinder (5), blast pipe (15) communicates with the cavity of rotating ring (14).
According to the described enhancement mode low frequency acoustic wave soot blower of claim 2, it is characterized in that 3, the front portion of axle is connected with two ball bearings (6), have labyrinth axle envelope (3) and (8) on the inner peripheral surface of inside cap (4) and outer bearing cover (7) respectively.
According to the described enhancement mode low frequency acoustic wave soot blower of claim 3, it is characterized in that 4, inside cap (4) is being inlaid with O RunddichtringO (11) on the contacted end face of stationary ring (2).
5,, it is characterized in that the end of outer bearing cover (7) is inlaid with one oil-resistant seal ring (9) according to the described enhancement mode low frequency acoustic wave soot blower of claim 4.
According to the described enhancement mode low frequency acoustic wave soot blower of claim 5, it is characterized in that 6, the reservoir volume of cylinder is at least ten times of rotating ring cavity volume.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520045944 CN2835825Y (en) | 2005-10-27 | 2005-10-27 | Enhanced low-frequency acoustic wave ash blower |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520045944 CN2835825Y (en) | 2005-10-27 | 2005-10-27 | Enhanced low-frequency acoustic wave ash blower |
Publications (1)
Publication Number | Publication Date |
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CN2835825Y true CN2835825Y (en) | 2006-11-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 200520045944 Expired - Fee Related CN2835825Y (en) | 2005-10-27 | 2005-10-27 | Enhanced low-frequency acoustic wave ash blower |
Country Status (1)
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CN (1) | CN2835825Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108534158A (en) * | 2018-06-11 | 2018-09-14 | 周辉 | A kind of air swirl formula sonic generator |
CN108679635A (en) * | 2018-06-11 | 2018-10-19 | 周辉 | A kind of sound ring type sonic generator |
CN108826285A (en) * | 2018-06-01 | 2018-11-16 | 山西瓦特网联环能科技有限公司 | Big adjust compares coal burner |
-
2005
- 2005-10-27 CN CN 200520045944 patent/CN2835825Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108826285A (en) * | 2018-06-01 | 2018-11-16 | 山西瓦特网联环能科技有限公司 | Big adjust compares coal burner |
CN108826285B (en) * | 2018-06-01 | 2023-11-03 | 山西瓦特网联环能科技有限公司 | Large regulating ratio coal powder burner |
CN108534158A (en) * | 2018-06-11 | 2018-09-14 | 周辉 | A kind of air swirl formula sonic generator |
CN108679635A (en) * | 2018-06-11 | 2018-10-19 | 周辉 | A kind of sound ring type sonic generator |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |