CN103447185B - Dry ice spraying device and dry ice spraying method - Google Patents

Dry ice spraying device and dry ice spraying method Download PDF

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Publication number
CN103447185B
CN103447185B CN201310340414.4A CN201310340414A CN103447185B CN 103447185 B CN103447185 B CN 103447185B CN 201310340414 A CN201310340414 A CN 201310340414A CN 103447185 B CN103447185 B CN 103447185B
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dry ice
dry
ice
center line
mixing chamber
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CN103447185A (en
Inventor
刘世念
苏伟
魏增福
范圣平
马存仁
卢国华
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Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Abstract

The invention discloses a dry ice spraying device which comprises a compressed air nozzle, a mixing chamber, an oscillating cavity, a diffusion pipe and a collision wall. A mounting through hole and a dry ice inlet are arranged on the mixing chamber, the compressed air nozzle is embedded in the mounting through hole, the mixing chamber is communicated with the oscillating cavity through a dry ice spraying-in passage, a dry ice outlet is arranged on the oscillating cavity, the diffusion pipe is mounted at the dry ice outlet, and the collision wall is arranged in the oscillating cavity and is opposite to the dry ice spraying-in passage. Two-throat-pipe spraying is adopted, so that conveying of dry ice particles is less prone to blockage when the dry ice spraying device works, continuous and smooth feeding of the dry ice particles is realized, and working efficiency is improved; the oscillating cavity is designed, and by self-excitation oscillating structure conditions and continuous border conditions of the oscillating cavity, continuous dry ice spray flow can be converted into pulse spray flow, spraying distance is long, and continuous quantity is large. The invention discloses a dry ice spraying method adopting the dry ice spraying device.

Description

Dry-ice blast device and method
Technical field
The present invention relates to dry ice blasting field, particularly relate to a kind of dry-ice blast device and method.
Background technology
Traditional, Dry ice cleaning equipment can only carry out the injection of short distance dry ice particles, inefficiency, labor intensive due to its injection apparatus; And dry ice particles conveying is easily blocked, and is difficult to supply dry ice particles continuously, easily causes the delay of cleaning; Injection apparatus expulsion pressure in addition due to traditional Dry ice cleaning equipment is low, and impulsive force is not strong, is difficult to clean with serious pollution target.
Summary of the invention
Based on this, the invention reside in the defect overcoming prior art, provide a kind of dry-ice blast device, can not only realize remote injection, increase work efficiency, and expulsion pressure is large, impulsive force is strong, and dry ice particles conveying not easily blocks.
Its technical scheme is as follows:
A kind of dry-ice blast device, comprise compressed-air atomizer, mixing chamber, vibration chamber, anemostat, impact walls, described mixing chamber is provided with installs through hole and dry ice entrance, described compressed-air atomizer is embedded in installation through hole, described mixing chamber injects channel connection with vibration chamber by dry ice, and described vibration chamber is provided with dry ice outlet, and described anemostat is arranged on dry ice exit, described impact walls is arranged in vibration chamber, and to inject passage relative with described dry ice.
Preferably, the mounting center line of described compressed-air atomizer, dry ice inject the center line of passage, the center line of dry ice outlet, the mounting center line of anemostat overlap mutually.
Preferably, the center line of described dry ice entrance and dry ice inject the central axis of passage.
Preferably, described impact walls is taper, and its conical surface angle is 120 °, and the relative dry ice of its conical surface injects channel setting.
Preferably, described dry ice outlet is arranged in impact walls, and the center line of dry ice outlet overlaps with the center line of impact walls.
Preferably, be tapered channel in described anemostat, its one end near vibration chamber is the small end of passage, and the angle of the conical surface of passage and the mounting center line of anemostat is 6 °.
A kind of dry ice blasting method, comprises the steps;
Compressed air line is opened, compressed air enters mixing chamber by compressed-air atomizer, make to form negative pressure in mixing chamber, then open dry ice pipeline, dry ice particles is inhaled into mixing chamber by dry ice entrance, forms dry ice jet and inject passage by dry ice and enter the chamber that vibrates after dry ice particles mixes with compressed air, constantly collide with impact walls, self-oscillation in vibration chamber, is formed pulsing jet, is gone out by anemostat high velocity jet.
Below the advantage of preceding solution or principle are described:
Described dry-ice blast device adopts two wikipedia type to spray, during work, dry ice particles conveying not easily blocks, achieve dry ice particles to continue, smooth supply, improve operating efficiency, adopt the design in vibration chamber, without any need for other servicing unit, only rely on the self-oscillation structural condition self had and the boundary condition of continuing, just continuous print dry ice jet can be converted into pulsing jet, jet length is far away, continue amount large, substantially increase Dry ice cleaning operating efficiency, the pulsing jet sprayed, both the surface of object to be cleaned can not have been damaged, also secondary pollution can not be caused, reach the requirement of environmental protection, and described dry-ice blast device goes for the spraying system of low pressure, the power consumption of purging system can be reduced, thus it is cost-saving.
Described dry ice blasting method utilizes the mixing chamber in negative pressure to suck dry ice particles, utilize vibration chamber that dry ice jet and impact walls are collided, thus self-oscillation, form pulsing jet high velocity jet to go out, reach remote object of spraying, increase work efficiency, reduce people's consumption, and it is simple to operate, easy to use, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the dry-ice blast device described in the embodiment of the present invention;
Description of reference numerals:
100, compressed-air atomizer, 110, the mounting center line of compressed-air atomizer, 200, mixing chamber, 210, through hole is installed, 220, dry ice entrance, 222, the center line of dry ice entrance, 300, vibrate chamber, 310, dry ice outlet, 312, dry ice outlet center line, 400, anemostat, 410, the mounting center line of anemostat, 500, impact walls, 510, conical surface angle, 520, the center line of impact walls, 600, dry ice injects passage, 610, dry ice injects channel centerline.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail:
As shown in Figure 1, a kind of dry-ice blast device, comprise compressed-air atomizer 100, mixing chamber 200, vibration chamber 300, anemostat 400, impact walls 500, described mixing chamber 200 is provided with installs through hole 210 and dry ice entrance 220, described compressed-air atomizer 100 is embedded in installation through hole 210, described mixing chamber 200 is injected passage 600 with vibration chamber 300 by dry ice and is communicated with, described vibration chamber 300 is provided with dry ice outlet 310, described anemostat 400 is arranged on dry ice and exports 310 places, described impact walls 500 is arranged in vibration chamber 300, and with described dry ice, to inject passage 600 relative.Described compressed-air atomizer 100 for being connected with air delivery pipe, thus sprays compressed air.Dry ice suction line is installed at dry ice entrance 220 place on mixing chamber 200, and its outer surface is provided with screw thread, and for connecting dry ice transfer pipeline, thus conveying dry ice particles enters mixing chamber 200.
For make dry ice particles spray more smooth and easy, realize high velocity jet, the mounting center line 110 of described compressed-air atomizer, dry ice inject channel centerline 610, dry ice outlet center line 312, anemostat mounting center line 410 overlap mutually.
Be ejected into vibration chamber 300 for making to inject passage 600 by dry ice swimmingly from the dry ice particles of dry ice entrance 220, the center line 610 that center line 222 and the dry ice of described dry ice entrance inject passage is vertical.
For making the dry ice particles entering vibration chamber 300 realize self-oscillation to greatest extent, described impact walls 500 is taper, and its conical surface angle 510 is 120 °, and the relative dry ice of its conical surface is injected passage 600 and arranged.
For the dry ice particles after making self-oscillation more swimmingly high velocity jet go out, described dry ice outlet 310 is arranged in impact walls 500, and the center line 312 of dry ice outlet overlaps with the center line 520 of impact walls, namely dry ice outlet 310 penetrates the center setting of impact walls 500.
Enough large speed can be kept to make the dry ice particles ejected, the injection of larger angle can be kept again simultaneously, the cleaning performance realized, be tapered channel in described anemostat 400, its one end near vibration chamber is the small end of passage, and the angle of the conical surface of passage and the mounting center line of anemostat is 6 °.
Described dry-ice blast device adopts two wikipedia type to spray, during work, dry ice particles conveying not easily blocks, achieve dry ice particles to continue, smooth supply, improve operating efficiency, adopt the design in vibration chamber, without any need for other servicing unit, only rely on the self-oscillation structural condition self had and the boundary condition of continuing, just continuous print dry ice jet can be converted into pulsing jet, jet length is far away, continue amount large, substantially increase Dry ice cleaning operating efficiency, the pulsing jet sprayed, both the surface of object to be cleaned can not have been damaged, also secondary pollution can not be caused, reach the requirement of environmental protection, and described dry-ice blast device goes for the spraying system of low pressure, the power consumption of purging system can be reduced, thus it is cost-saving.
Adopt a dry ice blasting method for above-mentioned dry-ice blast device, comprise the steps;
Compressed air line is opened, compressed air enters mixing chamber by compressed-air atomizer, make to form negative pressure in mixing chamber, then open dry ice pipeline, dry ice particles is inhaled into mixing chamber by dry ice entrance, forms dry ice jet and inject passage by dry ice and enter the chamber that vibrates after dry ice particles mixes with compressed air, constantly collide with impact walls, self-oscillation in vibration chamber, is formed pulsing jet, is gone out by anemostat high velocity jet.
Described dry ice blasting method utilizes the mixing chamber in negative pressure to suck dry ice particles, utilize vibration chamber that dry ice jet and impact walls are collided, thus self-oscillation, form pulsing jet high velocity jet to go out, reach remote object of spraying, increase work efficiency, reduce people's consumption, and it is simple to operate, easy to use, safe and reliable.
The above embodiment only have expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (7)

1. a dry-ice blast device, it is characterized in that, comprise compressed-air atomizer, mixing chamber, vibration chamber, anemostat, impact walls, described mixing chamber is provided with installs through hole and dry ice entrance, and described compressed-air atomizer is embedded in installation through hole, and described mixing chamber injects channel connection with vibration chamber by dry ice, described vibration chamber is provided with dry ice outlet, described anemostat is arranged on dry ice exit, and described impact walls is arranged in vibration chamber, and to inject passage relative with described dry ice.
2. dry-ice blast device according to claim 1, is characterized in that, the mounting center line of described compressed-air atomizer, dry ice inject passage center line, dry ice outlet center line, anemostat mounting center line overlap mutually.
3. dry-ice blast device according to claim 2, is characterized in that, the center line of described dry ice entrance and dry ice inject the central axis of passage.
4. dry-ice blast device according to claim 2, is characterized in that, described impact walls is taper, and its conical surface angle is 120 °, and the relative dry ice of its conical surface injects channel setting.
5. dry-ice blast device according to claim 4, is characterized in that, described dry ice outlet is arranged in impact walls, and the center line of dry ice outlet overlaps with the center line of impact walls.
6. dry-ice blast device according to claim 5, is characterized in that, is tapered channel in described anemostat, and its one end near vibration chamber is the small end of passage, and the angle of the conical surface of passage and the mounting center line of anemostat is 6 °.
7. adopt a dry ice blasting method for the dry-ice blast device described in any one of claim 1-6, it is characterized in that, comprise the steps;
Compressed air line is opened, compressed air enters mixing chamber by compressed-air atomizer, make to form negative pressure in mixing chamber, then open dry ice pipeline, dry ice particles is inhaled into mixing chamber by dry ice entrance, forms dry ice jet and inject passage by dry ice and enter the chamber that vibrates after dry ice particles mixes with compressed air, constantly collide with impact walls, self-oscillation in vibration chamber, is formed pulsing jet, is gone out by anemostat high velocity jet.
CN201310340414.4A 2013-08-06 2013-08-06 Dry ice spraying device and dry ice spraying method Active CN103447185B (en)

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CN105240095A (en) * 2015-11-19 2016-01-13 大连海事大学 SCR system self-oscillation pulse atomization nozzle applied to marine diesel engine
CN105735997A (en) * 2016-04-08 2016-07-06 上海交通大学 Loop impulse water jet ore crushing device and ore crushing method thereof
CN105728219B (en) * 2016-04-20 2018-10-12 南京理工大学 A kind of hit adds self-oscillatory highly viscous fluid two-phase nozzle
CN105983496A (en) * 2016-06-25 2016-10-05 深圳市芭田生态工程股份有限公司 Vertical ejector used for producing compound fertilizer through air prilling
CN107930883A (en) * 2018-01-24 2018-04-20 深圳市山水乐环保科技有限公司 A kind of micro-nano atomising device of liquid and method
CN110090477B (en) * 2018-01-31 2021-09-10 沈阳铝镁设计研究院有限公司 Deep cone settling tank feeding device
CN109955116B (en) * 2019-04-18 2023-09-08 厦门理工学院 Cooling mixture, generating device, generating method and cooling method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010043888A1 (en) * 1999-08-26 2001-11-22 Ito Jackson I. Fluid atomization process
WO2009139265A1 (en) * 2008-05-16 2009-11-19 シンユー技研株式会社 Snow gun
CN201978835U (en) * 2011-04-02 2011-09-21 迪普干冰制造(大连)有限公司 Spray nozzle for double-throat-pipe dry ice cleaning machine
CN102909142A (en) * 2011-08-05 2013-02-06 李远明 Water gun for aerated pulse water jet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010043888A1 (en) * 1999-08-26 2001-11-22 Ito Jackson I. Fluid atomization process
WO2009139265A1 (en) * 2008-05-16 2009-11-19 シンユー技研株式会社 Snow gun
CN201978835U (en) * 2011-04-02 2011-09-21 迪普干冰制造(大连)有限公司 Spray nozzle for double-throat-pipe dry ice cleaning machine
CN102909142A (en) * 2011-08-05 2013-02-06 李远明 Water gun for aerated pulse water jet

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Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8

Patentee after: ELECTRIC POWER RESEARCH INSTITUTE, GUANGDONG POWER GRID CO., LTD.

Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8

Patentee before: Electrical Power Research Institute of Guangdong Power Grid Corporation