CN109318133A - A kind of liquid nitrogen and dry ice mixing deburring nozzle - Google Patents
A kind of liquid nitrogen and dry ice mixing deburring nozzle Download PDFInfo
- Publication number
- CN109318133A CN109318133A CN201811284235.2A CN201811284235A CN109318133A CN 109318133 A CN109318133 A CN 109318133A CN 201811284235 A CN201811284235 A CN 201811284235A CN 109318133 A CN109318133 A CN 109318133A
- Authority
- CN
- China
- Prior art keywords
- dry ice
- liquid nitrogen
- closing
- nozzle
- inlet side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 70
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 235000011089 carbon dioxide Nutrition 0.000 title claims abstract description 54
- 239000007788 liquid Substances 0.000 title claims abstract description 35
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 35
- 239000002245 particle Substances 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001133 acceleration Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
- B24C5/04—Nozzles therefor
-
- 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
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a kind of liquid nitrogen and dry ice mixing deburring nozzle, including nozzle body, the nozzle body have be connected with dry ice cleaner, the inlet side for supplying dry ice particles and air, and make dry ice accelerate ejection outlet side；There is at smallest cross-sectional a closing in portion in the middle part of the nozzle body, be the first expansion mouth between the closing in portion and inlet side, be the second expansion mouth between closing in portion and outlet side；The feed pipe for inputting liquid nitrogen is additionally provided in the closing in portion.On the one hand the present invention improves the quick-frozen ability of jet nozzle air flow, the secondary acceleration of dry ice particles is on the other hand realized by the volatilization expansion of liquid nitrogen, so that cleaning efficiency and cleaning effect are greatly improved by introducing liquid nitrogen inside traditional dry ice washer jet.
Description
Technical field
The invention belongs to Dry ice cleaning apparatus field more particularly to a kind of liquid nitrogen and dry ice mixing deburring nozzle.
Background technique
Dry ice cleaner is core, crucial part the most in dry ice cleaning system, is sprayed at a high speed by its dry ice particles
It is mapped to cleaning object surface, to eliminate dirt.Different type cleaning machine has different nozzle arrangements, under the same conditions (air
Pressure, flow, temperature, dry ice particles size etc.), the relatively double trunnion nozzles of single trunnion nozzle are more efficient.Dry ice cleaning at present
It is widely used in oil removing, derusting, deburring etc., Cleaning principle is mainly cryogenic freezing removing, impact peel, purging removing etc..
Wherein, the low temperature properties freezing burr that dry ice is depended in deburring is allowed to that embrittlement occurs, then is impacted by dry ice particles
Burr disengages it from product.
But since the critical-temperature of dry ice in above structure is only -78.5 DEG C, -78.5 DEG C of hairs can only be washed
The burr of the material of raw embrittlement.
Summary of the invention
In order to overcome the above problem, the present invention provides a kind of liquid nitrogen and dry ice mixing deburring nozzle, solves existing nozzle
- 78.5 DEG C of deburring problems for occurring below brittle material can not be handled.
The technical solution adopted by the present invention to solve the technical problems is: a kind of liquid nitrogen and dry ice mixing deburring nozzle,
Including nozzle body, the nozzle body have be connected with dry ice cleaner, the inlet side for supplying dry ice particles and air, and make
Dry ice accelerates the outlet side sprayed.There is at smallest cross-sectional a closing in portion in the middle part of the nozzle body, the closing in portion and inlet side it
Between be the first expansion mouth, between closing in portion and outlet side be the second expansion mouth；It is additionally provided in the closing in portion for inputting liquid nitrogen
Feed pipe.Through the above technical solutions, nozzle can be promoted after by the way that liquid nitrogen is added on the basis of traditional dry ice washer jet
Refrigerating effect, make burr brittle time shorten, and liquid nitrogen heat absorption volatilization expansion after, make the secondary acceleration of dry ice particles, can be improved
Cleaning efficiency and cleaning effect save material.
Further, the dry ice particles and air reach closing in portion through the first expansion mouth by inlet side and form negative pressure, by
The liquid nitrogen of feed pipe input enters the second expansion mouth under the action of negative pressure and mixes with dry ice particles and air, and part liquid nitrogen is the
Heat exchange occurs for two expansion mouths and inner air tube, reduces air themperature, and the liquid nitrogen expansion after volatilization makes the second expansion mouth
Pressure enhancing, accelerates dry ice particles again.
Further, the internal diameter of the inlet side is greater than the internal diameter in closing in portion.
Further, the internal diameter of the outlet side is greater than the internal diameter in closing in portion.
Further, the inlet side is threadedly coupled with dry ice cleaner.
Beneficial effects of the present invention:
On the one hand the present invention improves the quick-frozen of jet nozzle air flow by introducing liquid nitrogen inside traditional dry ice washer jet
On the other hand ability realizes the secondary acceleration of dry ice particles, so that cleaning efficiency and cleaning effect by the volatilization expansion of liquid nitrogen
It is greatly improved.
Below with reference to drawings and examples, the present invention is described in detail.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Embodiment,
As shown in Figure 1, a kind of liquid nitrogen and dry ice mixing deburring nozzle, including a reducing and expansion type nozzle body 1, reducing and expansion type nozzle
Body 1 is first to shrink, the pipeline section of further expansion.
Nozzle body 1 have be connected with dry ice cleaner, the inlet side 2 for supplying dry ice particles and air, and
Dry ice is set to accelerate the outlet side 3 sprayed.The minimum endface in 1 middle part of nozzle body is closing in portion 4, between the closing in portion 4 and inlet side 2
It is the second expansion mouth 6 between closing in portion 4 and outlet side 3 for the first expansion mouth 5.The internal diameter of inlet side 2 is greater than the interior of closing in portion 4
Diameter, the internal diameter of outlet side 3 are greater than the internal diameter in closing in portion 4.The feed pipe 7 for inputting liquid nitrogen is additionally provided in closing in portion 4.
Said nozzle inlet side is connected through a screw thread dry ice cleaner, dry ice particles and air by inlet side through the first flaring
Portion reaches closing in portion and forms negative pressure, and liquid nitrogen enters from closing in portion through feed pipe, and liquid nitrogen enters the second flaring under the action of negative pressure
Portion is mixed with dry ice particles and air, and in the second expansion mouth and inner air tube heat exchange occurs for part liquid nitrogen, drops air themperature
It is low, and the liquid nitrogen expansion after volatilization enhances the second expansion mouth pressure, accelerates dry ice particles again, final liquid nitrogen and low temperature
Air make burr freezing embrittlement, dry ice particles impact burr so that it is fallen off.Under original design conditions, dry ice particles exist when work
Closing in portion reaches the velocity of sound, then accelerates to supersonic speed in the second expansion mouth.Using nozzle of the invention, by conventional spout base
After liquid nitrogen is added on plinth, the refrigerating effect of nozzle is on the one hand promoted, shortens burr brittle time, the heat absorption of another aspect liquid nitrogen is waved
After hair expansion, make the secondary acceleration of dry ice particles, cleaning efficiency and cleaning effect can be improved, saved material.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (5)
1. a kind of liquid nitrogen and dry ice mixing deburring nozzle, including nozzle body, which, which has, is connected with dry ice cleaner, uses
In supply dry ice particles and the inlet side of air, and dry ice is made to accelerate the outlet side sprayed；It is characterized by: the nozzle body
There is a closing in portion at the smallest cross-sectional of middle part, be the first expansion mouth between the closing in portion and inlet side, closing in portion and outlet side it
Between be the second expansion mouth；The feed pipe for inputting liquid nitrogen is additionally provided in the closing in portion.
2. liquid nitrogen as described in claim 1 and dry ice mixing deburring nozzle, it is characterised in that: the dry ice particles and air by
Inlet side reaches closing in portion through the first expansion mouth and forms negative pressure, enters second under the action of negative pressure by the liquid nitrogen that feed pipe inputs
Expansion mouth is mixed with dry ice particles and air, and in the second expansion mouth and inner air tube heat exchange occurs for part liquid nitrogen, makes Air Temperature
Degree reduces, and the liquid nitrogen expansion after volatilization enhances the second expansion mouth pressure, accelerates dry ice particles again.
3. liquid nitrogen as described in claim 1 and dry ice mixing deburring nozzle, it is characterised in that: the internal diameter of the inlet side is greater than
The internal diameter in closing in portion.
4. liquid nitrogen as described in claim 1 and dry ice mixing deburring nozzle, it is characterised in that: the internal diameter of the outlet side is greater than
The internal diameter in closing in portion.
5. liquid nitrogen as described in claim 1 and dry ice mixing deburring nozzle, it is characterised in that: the inlet side and Dry ice cleaning
Machine is threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284235.2A CN109318133A (en) | 2018-10-31 | 2018-10-31 | A kind of liquid nitrogen and dry ice mixing deburring nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284235.2A CN109318133A (en) | 2018-10-31 | 2018-10-31 | A kind of liquid nitrogen and dry ice mixing deburring nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109318133A true CN109318133A (en) | 2019-02-12 |
Family
ID=65259779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811284235.2A Pending CN109318133A (en) | 2018-10-31 | 2018-10-31 | A kind of liquid nitrogen and dry ice mixing deburring nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109318133A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180817A (en) * | 2019-05-29 | 2019-08-30 | 西安热工研究院有限公司 | The multiphase flow cleaning device and cleaning method of solid state electrode in a kind of chemical instruments |
| CN110369403A (en) * | 2019-07-15 | 2019-10-25 | 儒众智能科技（苏州）有限公司 | Dry ice cleaning nozzle, dry ice cleaner and anti-secondary pollution dry ice cleaning method |
| CN112809204A (en) * | 2021-02-04 | 2021-05-18 | 厦门大学 | Laser cutting decarbonization device and method for polyimide cover film |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09155741A (en) * | 1995-12-11 | 1997-06-17 | Showa Tansan Kk | Blast device |
| JPH09285744A (en) * | 1996-04-22 | 1997-11-04 | Kiyoyuki Horii | Surface treatment by two-phase jet stream of liquefied gas and high pressure liquid |
| JP2005319535A (en) * | 2004-05-10 | 2005-11-17 | Hitachi Industries Co Ltd | Co2 blast nozzle, and machining apparatus using the same |
| CN203044219U (en) * | 2013-02-01 | 2013-07-10 | 广东电网公司电力科学研究院 | Contracting and expanding type dry ice cleaning nozzle |
| CN204746992U (en) * | 2015-06-10 | 2015-11-11 | 刘昭岐 | Use dry ice belt cleaning device of carbon dioxide as medium |
| CN107283326A (en) * | 2017-06-30 | 2017-10-24 | 中国石油大学(北京) | Liquid nitrogen and ice pellets abrasive jetting method and its generating means |
| CN108107065A (en) * | 2017-12-11 | 2018-06-01 | 扬州大学 | A kind of preparation of rice starch grain section and observation analysis method |
-
2018
- 2018-10-31 CN CN201811284235.2A patent/CN109318133A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09155741A (en) * | 1995-12-11 | 1997-06-17 | Showa Tansan Kk | Blast device |
| JPH09285744A (en) * | 1996-04-22 | 1997-11-04 | Kiyoyuki Horii | Surface treatment by two-phase jet stream of liquefied gas and high pressure liquid |
| JP2005319535A (en) * | 2004-05-10 | 2005-11-17 | Hitachi Industries Co Ltd | Co2 blast nozzle, and machining apparatus using the same |
| CN203044219U (en) * | 2013-02-01 | 2013-07-10 | 广东电网公司电力科学研究院 | Contracting and expanding type dry ice cleaning nozzle |
| CN204746992U (en) * | 2015-06-10 | 2015-11-11 | 刘昭岐 | Use dry ice belt cleaning device of carbon dioxide as medium |
| CN107283326A (en) * | 2017-06-30 | 2017-10-24 | 中国石油大学(北京) | Liquid nitrogen and ice pellets abrasive jetting method and its generating means |
| CN108107065A (en) * | 2017-12-11 | 2018-06-01 | 扬州大学 | A kind of preparation of rice starch grain section and observation analysis method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110180817A (en) * | 2019-05-29 | 2019-08-30 | 西安热工研究院有限公司 | The multiphase flow cleaning device and cleaning method of solid state electrode in a kind of chemical instruments |
| CN110180817B (en) * | 2019-05-29 | 2023-09-08 | 西安热工研究院有限公司 | Multiphase flow cleaning device and cleaning method for solid-state electrode in chemical instrument |
| CN110369403A (en) * | 2019-07-15 | 2019-10-25 | 儒众智能科技（苏州）有限公司 | Dry ice cleaning nozzle, dry ice cleaner and anti-secondary pollution dry ice cleaning method |
| CN110369403B (en) * | 2019-07-15 | 2024-02-13 | 儒众智能科技（苏州）有限公司 | Dry ice cleaning nozzle, dry ice cleaning machine and secondary pollution prevention dry ice cleaning method |
| CN112809204A (en) * | 2021-02-04 | 2021-05-18 | 厦门大学 | Laser cutting decarbonization device and method for polyimide cover film |
| CN112809204B (en) * | 2021-02-04 | 2022-04-19 | 厦门大学 | Laser cutting decarbonization device and method for polyimide cover film |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |