CN109174830A - A kind of aero-engine component surface layer dry ice cleaning method - Google Patents
A kind of aero-engine component surface layer dry ice cleaning method Download PDFInfo
- Publication number
- CN109174830A CN109174830A CN201810826129.6A CN201810826129A CN109174830A CN 109174830 A CN109174830 A CN 109174830A CN 201810826129 A CN201810826129 A CN 201810826129A CN 109174830 A CN109174830 A CN 109174830A
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- Prior art keywords
- dry ice
- cleaning
- aero
- goes out
- equipment
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Abstract
The present invention relates to Dry ice cleaning fields; specifically a kind of aero-engine component surface layer dry ice cleaning method; the specific steps of which are as follows: (1) prepares cleansing medium: (2) adjust equipment air pressure: (3) adjustment equipment goes out ice rate: (4) distance: (5) are vertical: (6) scavenging period: dry ice directly volatilizees in the process of cleaning; the expense of secondary pollution is not cleared up; on-line cleaning; a large amount of downtime is saved; it improves efficiency; it is not required to increase labour and production equipment; yield is improved, and has saved expense；It is different from sand grains, walnut shell, plastic pellet and other abrasive medias, dry ice particles are non-abrasive, Dry ice cleaning does not damage mold, do not destroy tolerance, bearing and machinery are not all damaged, in addition, on-line cleaning avoids accidental injury of the mold in disassembly process, the service life of equipment is extended.
Description
Technical field
The present invention relates to Dry ice cleaning field, specifically a kind of aero-engine component surface layer dry ice cleaning method.
Background technique
Before the aero-engine equal power device ground oil sealing of factory's storage at present, No. 180 washing gasoline need to be used to carry out
Surface decontamination cleaning, there are the risks of electrostatic fire；It is being replaced and cleaned medium, while using Dry ice cleaning, is considering its cleaning
Method, which is not carried out in aircraft repair industry, to be used, influence of the dry ice blasting to the aviations department enclosure a variety of materials such as engine
It is unknowable.Based on to each h type engine h equal power device material composition and the dirt form of expression, by investigation, test and demonstration,
Influence of the dry ice decontamination to metal material surfaces such as aluminium, copper, iron is analyzed, the medium shape of a set of aero-engine Dry ice cleaning is formulated
The application methods such as shape, size, cleaning pressure and requirement, it can be ensured that the ground maintenance that Dry ice cleaning is used in various power device makes
It is safe and reliable in.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes a kind of aero-engine component surface layer dry ice cleaning method.
A kind of aero-engine component surface layer dry ice cleaning method, the specific steps of which are as follows:
(1) prepare cleansing medium: preparing suitable dry ice as cleansing medium；
(2) equipment air pressure is adjusted: the supply gas pressure of adjustment Dry ice cleaning equipment；
(3) adjustment equipment goes out ice rate: adjustment Dry ice cleaning setting goes out ice rate；
(4) distance: adjustment is so that keep suitable distance between dry ice blasting rifle mouth and cleaning surface；
(5) vertical: injection need of work makes dry ice blasting rifle mouth perpendicular to cleaning surface；
(6) scavenging period: gentle mobile dry ice blasting rifle mouth sprays dry ice uniformly to cleaning surface when work,
The residence time of each position must not exceed 5S.
It is described when cleaning surface is body, it is required that the supply gas pressure of step (2) is maintained between 0.7-0.8MPA,
It is required that the ice rate that goes out of step (3) is 1KG/MIN, it is required that between the dry ice blasting rifle mouth and cleaning surface of step (4)
It is maintained between 30-50CM.
It is described when cleaning surface is department enclosure, it is required that the supply gas pressure of step (2) is maintained at 0.6MPA, need to make
The ice rate that goes out for obtaining step (3) is 0.7KG/MIN, it is required that keeping between the dry ice blasting rifle mouth and cleaning surface of step (4)
Between 100-110CM.
It is described when cleaning surface is cable, it is required that the supply gas pressure of step (2) is maintained at 0.5MPA, it is required that
The ice rate that goes out of step (3) is 0.5KG/MIN, it is required that being maintained between the dry ice blasting rifle mouth and cleaning surface of step (4)
Between 120-130CM.
The beneficial effects of the present invention are: dry ice directly volatilizees in the process of cleaning, the expense of secondary pollution is not cleared up,
Line cleaning, has saved a large amount of downtime, has improved efficiency, and is not required to increase labour and production equipment, yield are improved, save
About expense；Different from sand grains, walnut shell, plastic pellet and other abrasive medias, dry ice particles are non-abrasive, Dry ice cleaning
Mold is not damaged, tolerance is not destroyed, bearing and machinery are not all damaged, dismounted in addition, on-line cleaning avoids mold
Accidental injury in journey extends the service life of equipment；Different from steam and high pressure water cleaning, Dry ice cleaning is to circuit, control
Element processed, switch all do not damage, and after cleaning, a possibility that equipment is got rusty is greatly reduced compared with water cleaning, in food row
Industry application in, Dry ice cleaning with water clean compared with greatly reduce bacteria breed a possibility that；Dry ice is a kind of nontoxic substance,
The safety requirements for meeting United States Department of Agriculture, Food and Drug Administration, Bureau for Environmental Protection substitutes poisonous chemical with Dry ice cleaning
Matter cleaning, employee can fundamentally avoid the infringement of chemical substance, ensure the physical and mental health of employee, since CO2 is heavier than air,
The phenomenon that must assure that ventilation in enclosure space or sinking position operation Dry ice cleaning, guarantee safety, prevent asphyxia.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below it is right
The present invention is further described.
Embodiment one:
A kind of aero-engine component surface layer dry ice cleaning method, the specific steps of which are as follows:
(1) prepare cleansing medium: preparing suitable dry ice as cleansing medium；
(2) adjust equipment air pressure: the supply gas pressure of adjustment Dry ice cleaning equipment is maintained between 0.7-0.8MPA；
(3) adjustment equipment goes out ice rate: the ice rate that goes out of adjustment Dry ice cleaning setting is 1KG/MIN；
(4) distance: adjustment between dry ice blasting rifle mouth and body so that keep at a distance between 30-50CM；
(5) vertical: injection need of work makes dry ice blasting rifle mouth perpendicular to body；
(6) scavenging period: gentle mobile dry ice blasting rifle mouth sprays dry ice uniformly to body when work, often
The residence time of one position must not exceed 5S.
The jet cleaning technique of the present embodiment is subjected to cleaning test to aluminium, copper, ferrous material class body, is as a result shown
Show: due to directly impacting clean the surface after being cleaned by dry ice blasting, the kinetic energy impact of dry ice is very little, this is because dry ice
Hardness is little, and in impact transient evaporation, does not generate any abrasion, and after cleaning, body surface is cleaned without greasy dirt.
Embodiment two:
A kind of aero-engine component surface layer dry ice cleaning method, the specific steps of which are as follows:
(1) prepare cleansing medium: preparing suitable dry ice as cleansing medium；
(2) adjust equipment air pressure: the supply gas pressure of adjustment Dry ice cleaning equipment is maintained at 0.6MPA；
(3) adjustment equipment goes out ice rate: the ice rate that goes out of adjustment Dry ice cleaning setting is 0.7KG/MIN；
(4) distance: adjustment between dry ice blasting rifle mouth and attached component so that keep at a distance between 100-110CM；
(5) vertical: injection need of work makes dry ice blasting rifle mouth perpendicular to attached component；
(6) scavenging period: gentle mobile dry ice blasting rifle mouth sprays dry ice uniformly to attached component when work,
The residence time of each position must not exceed 5S.
Attached component of the jet cleaning technique of the present embodiment to casting is subjected to cleaning test, as the result is shown: passing through dry ice
Due to directly impacting clean the surface after jet cleaning, cooling only occurs in surface；And such thermal shock is much smaller than ordinary hot
The thermal shock that mold is encountered in processing, after cleaning, attached parts surface cleaning is without greasy dirt.
Embodiment three:
A kind of aero-engine component surface layer dry ice cleaning method, the specific steps of which are as follows:
(1) prepare cleansing medium: preparing suitable dry ice as cleansing medium；
(2) adjust equipment air pressure: the supply gas pressure of adjustment Dry ice cleaning equipment is maintained at 0.5MPA；
(3) adjustment equipment goes out ice rate: the ice rate that goes out of adjustment Dry ice cleaning setting is 0.5KG/MIN；
(4) distance: adjustment between dry ice blasting rifle mouth and cable so that keep at a distance between 120-130CM；
(5) vertical: injection need of work makes dry ice blasting rifle mouth perpendicular to cable；
(6) scavenging period: gentle mobile dry ice blasting rifle mouth sprays dry ice uniformly to cable when work, often
The residence time of one position must not exceed 5S.
The jet cleaning technique of the present embodiment is subjected to cleaning test to cable, as the result is shown: cleaning by dry ice blasting
Afterwards due to directly impacting clean the surface, after cleaning, cable surface layer is cleaned without greasy dirt.
Dry ice directly volatilizees in the process of cleaning, does not clear up the expense of secondary pollution, and on-line cleaning has been saved a large amount of
Downtime improves efficiency, and is not required to increase labour and production equipment, yield are improved, saved expense.
Dry ice is different from sand grains, walnut shell, plastic pellet and other abrasive medias, and dry ice particles are non-abrasive, dry ice
Cleaning does not damage mold, does not destroy tolerance, does not all damage to bearing and machinery, is tearing open in addition, on-line cleaning avoids mold
Accidental injury during dress extends the service life of equipment.
Dry ice cleaning is different from steam and high pressure water cleaning, and Dry ice cleaning does not all damage circuit, control element, switch
Wound, after cleaning, a possibility that equipment is got rusty with water cleaning compared to being greatly reduced, in food service industry application, Dry ice cleaning and
Water cleaning is compared to a possibility that greatly reducing bacteria breed.
Dry ice is a kind of nontoxic substance, meets the safety of United States Department of Agriculture, Food and Drug Administration, Bureau for Environmental Protection
It is required that being cleaned with Dry ice cleaning substitution toxic chemical substance, employee can fundamentally avoid the infringement of chemical substance, guarantee person
The physical and mental health of work must assure that ventilation in enclosure space or sinking position operation Dry ice cleaning since CO2 is heavier than air,
The phenomenon that guaranteeing safety, preventing asphyxia.
Use dry ice particles as cleansing medium, using dry ice particles in impact transient evaporation, the momentum of dry ice particles exists
Pop-off is impacted, heat exchange occurs rapidly for dry ice particles and clean the surface, and causing drikold to distil rapidly becomes gas
Body, dry ice particles are expanded in some thousandths of second inner volume, cause " miniature explosion " principle in shock point.
By formulate use process in supply gas pressure, rifle mouth with a distance from cleaning surface, go out ice rate, continuous injecting time
Equal technological parameters, solve aero-engine and its power device is used for a long time No. 180 washing gasoline and carries out decontamination cleaning, exist
The risk of electrostatic fire, while dry ice valence is low, reduces cleaning cost.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (4)
1. a kind of aero-engine component surface layer dry ice cleaning method, it is characterised in that: the specific steps of which are as follows:
(1) prepare cleansing medium: preparing suitable dry ice as cleansing medium；
(2) equipment air pressure is adjusted: the supply gas pressure of adjustment Dry ice cleaning equipment；
(3) adjustment equipment goes out ice rate: adjustment Dry ice cleaning setting goes out ice rate；
(4) distance: adjustment is so that keep suitable distance between dry ice blasting rifle mouth and cleaning surface；
(5) vertical: injection need of work makes dry ice blasting rifle mouth perpendicular to cleaning surface；
(6) scavenging period: gentle mobile dry ice blasting rifle mouth sprays dry ice uniformly to cleaning surface when work, each
The residence time of position must not exceed 5S.
2. a kind of aero-engine component surface layer according to claim 1 dry ice cleaning method, it is characterised in that: it is described
When cleaning surface is body, it is required that the supply gas pressure of step (2) is maintained between 0.7-0.8MPA, it is required that step
(3) the ice rate that goes out is 1KG/MIN, it is required that being maintained at 30-50CM between the dry ice blasting rifle mouth and cleaning surface of step (4)
Between.
3. a kind of aero-engine component surface layer according to claim 1 dry ice cleaning method, it is characterised in that: it is described
When cleaning surface is department enclosure, it is required that the supply gas pressure of step (2) is maintained at 0.6MPA, it is required that step (3) goes out
Ice rate be 0.7KG/MIN, it is required that be maintained between the dry ice blasting rifle mouth and cleaning surface of step (4) 100-110CM it
Between.
4. a kind of aero-engine component surface layer according to claim 1 dry ice cleaning method, it is characterised in that: it is described
When cleaning surface is cable, it is required that the supply gas pressure of step (2) is maintained at 0.5MPA, it is required that step (3) goes out ice
Rate is 0.5KG/MIN, it is required that being maintained between 120-130CM between the dry ice blasting rifle mouth and cleaning surface of step (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826129.6A CN109174830A (en) | 2018-07-25 | 2018-07-25 | A kind of aero-engine component surface layer dry ice cleaning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810826129.6A CN109174830A (en) | 2018-07-25 | 2018-07-25 | A kind of aero-engine component surface layer dry ice cleaning method |
Publications (1)
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| CN109174830A true CN109174830A (en) | 2019-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810826129.6A Pending CN109174830A (en) | 2018-07-25 | 2018-07-25 | A kind of aero-engine component surface layer dry ice cleaning method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040581A (en) * | 2019-12-30 | 2020-04-21 | 江苏艾德卡建材科技有限公司 | Bottom coating and construction process thereof |
| CN111073456A (en) * | 2019-12-30 | 2020-04-28 | 江苏艾德卡建材科技有限公司 | Epoxy floor base coating for greasy dirt ground |
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|---|---|---|---|---|
| CN201049331Y (en) * | 2007-05-29 | 2008-04-23 | 薛春玉 | Particle dry ice spraying cleaning gun |
| CN101480651A (en) * | 2008-12-05 | 2009-07-15 | 武汉大学 | Dry ice cleaning system for electrical apparatus external insulation |
| CN103447467A (en) * | 2013-08-21 | 2013-12-18 | 无锡蠡湖叶轮制造有限公司 | Method for cleaning metal mould |
| CN104763531A (en) * | 2014-01-07 | 2015-07-08 | 洪圣涛 | jet engine cleaning method and cleaning apparatus |
| CN105107795A (en) * | 2015-07-29 | 2015-12-02 | 山西金鼎高宝钻探有限责任公司 | Method for cleaning surfaces of electric device and precise hydraulic part by dry ice |
-
2018
- 2018-07-25 CN CN201810826129.6A patent/CN109174830A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201049331Y (en) * | 2007-05-29 | 2008-04-23 | 薛春玉 | Particle dry ice spraying cleaning gun |
| CN101480651A (en) * | 2008-12-05 | 2009-07-15 | 武汉大学 | Dry ice cleaning system for electrical apparatus external insulation |
| CN103447467A (en) * | 2013-08-21 | 2013-12-18 | 无锡蠡湖叶轮制造有限公司 | Method for cleaning metal mould |
| CN104763531A (en) * | 2014-01-07 | 2015-07-08 | 洪圣涛 | jet engine cleaning method and cleaning apparatus |
| CN105107795A (en) * | 2015-07-29 | 2015-12-02 | 山西金鼎高宝钻探有限责任公司 | Method for cleaning surfaces of electric device and precise hydraulic part by dry ice |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111040581A (en) * | 2019-12-30 | 2020-04-21 | 江苏艾德卡建材科技有限公司 | Bottom coating and construction process thereof |
| CN111073456A (en) * | 2019-12-30 | 2020-04-28 | 江苏艾德卡建材科技有限公司 | Epoxy floor base coating for greasy dirt ground |
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Application publication date: 20190111 |