CN109174486B - Low-temperature processing nozzle - Google Patents
Low-temperature processing nozzle Download PDFInfo
- Publication number
- CN109174486B CN109174486B CN201811174682.2A CN201811174682A CN109174486B CN 109174486 B CN109174486 B CN 109174486B CN 201811174682 A CN201811174682 A CN 201811174682A CN 109174486 B CN109174486 B CN 109174486B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- air
- cooling medium
- lubricating oil
- mixing cavity
- 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.)
- Active
Links
- 239000010687 lubricating oil Substances 0.000 claims abstract description 32
- 239000002826 coolant Substances 0.000 claims abstract description 30
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims abstract description 11
- 239000003595 mist Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007710 freezing Methods 0.000 abstract description 4
- 230000008014 freezing Effects 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/045—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber the gas and liquid flows being parallel just upstream the mixing chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
- B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
- B05B7/262—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device a liquid and a gas being brought together before entering the discharge device
Landscapes
- Nozzles (AREA)
Abstract
The invention discloses a low-temperature processing nozzle, which comprises a nozzle body, wherein an air flow channel is arranged in the nozzle body, two ends of the air flow channel are respectively provided with an air inlet and a nozzle, a cooling medium pipeline and a lubricating oil pipeline are also arranged in the nozzle body, one end of the cooling medium pipeline is positioned at the nozzle, the air flow channel comprises a mixing cavity, one side of the mixing cavity is communicated with the nozzle, the other side of the mixing cavity is communicated with the air inlet, one end of the lubricating oil pipeline is positioned in the mixing cavity, the cooling medium pipeline is used for conveying supercritical carbon dioxide to the nozzle, the air inlet is filled with high-pressure air, the lubricating oil pipeline is used for conveying lubricating oil, the high-pressure air and the lubricating oil are mixed in the mixing cavity to form oil mist and then sprayed out from the nozzle, and the nozzle can keep a certain temperature under the flushing of the high-pressure air, so that the lubricating oil is prevented from freezing, and a better spraying effect is obtained.
Description
Technical Field
The invention relates to the field of machining, in particular to a low-temperature machining nozzle.
Background
The actual cutting experiment shows that the surface roughness value of the workpiece subjected to cooling cutting by using liquid/supercritical carbon dioxide is larger, and the service life of the cutter is shorter. The workpiece surface roughness value of the cooling cutting by using the liquid/supercritical carbon dioxide cooling system and the lubricating oil lubricating system is low, and the service life of the cutter is long. Therefore, the liquid/supercritical carbon dioxide cooling system and the lubricating oil lubricating system are used for cooling and cutting at the same time, so that the precision of a workpiece and the service life of a cutter are improved.
However, the carbon dioxide pressure in the liquid state is about 7.5MPA or more, which makes it difficult to add the carbon dioxide liquid to the lubricating oil, and even if it is added, the amount of addition is greatly limited. Moreover, when the lubricating oil is added to the liquid carbon dioxide, since the carbon dioxide temperature is low (about-78 degrees celsius), the lubricating oil near the outlet portion may be frozen, affecting the ejection of the lubricating oil.
Disclosure of Invention
The invention aims to provide a low-temperature processing nozzle with a simple structure and good composite effect.
The technical scheme adopted by the invention is as follows:
The utility model provides a low temperature processing nozzle, includes the nozzle main part, is equipped with the air current passageway in the nozzle main part, and the both ends of air current passageway are air inlet and spout respectively, still are equipped with cooling medium pipeline and lubricating oil pipeline in the nozzle main part, and cooling medium pipeline's one end is located spout department, and the air current passageway includes the mixing chamber, and one side and the spout intercommunication of mixing chamber, the opposite side intercommunication air inlet of mixing chamber, and lubricating oil pipeline's one end is located the mixing chamber.
Further as an improvement of the technical scheme of the invention, a central plug is arranged in the nozzle main body, the central plug and the nozzle main body enclose a mixing cavity, a through hole for the cooling medium pipeline and the lubricating oil pipeline to pass through is arranged on the central plug, and a vent hole for air circulation is arranged on the central plug.
Further as an improvement of the technical scheme of the invention, the mixing cavity is a reducing round hole, the mixing cavity comprises a first mixing area and a second mixing area, the second mixing area is positioned at one side of the first mixing area close to the nozzle, and the diameter of the first mixing area is larger than that of the second mixing area.
Further as an improvement of the technical scheme of the invention, the diameter of one side of the first mixing zone adjacent to the second mixing zone is gradually reduced to be the same as the diameter of the second mixing zone along the radial direction.
Further as an improvement of the technical scheme of the invention, the periphery of the nozzle main body is also provided with an air nozzle, and the air nozzle is communicated with the air flow channel and the outer surface of the nozzle main body.
Further, as an improvement of the technical scheme of the invention, the cross section shape of one end of the nozzle body provided with the nozzle is a combination of a truncated cone shape and a rectangle shape.
Further as an improvement of the technical scheme of the invention, the nozzle main body comprises a nozzle fixing seat and a nozzle guide ring which are fixedly connected, and the air flow channel consists of holes in the nozzle fixing seat and the nozzle guide ring.
Further as an improvement of the technical scheme of the invention, one end of the nozzle guide ring is polygonal in cross section, the edges around the nozzle guide ring are clamped and fixed in the nozzle fixing seat, and the plane around the nozzle guide ring and the inner side surface of the nozzle fixing seat enclose an air nozzle.
Further as an improvement of the technical proposal of the invention, the cooling medium pipeline extends outwards from the nozzle.
Further as an improvement of the technical scheme of the invention, the length X of the cooling medium pipeline extending outwards from the nozzle is 0<X mm or less.
The invention has the beneficial effects that: the low-temperature processing nozzle is characterized in that the cooling medium pipeline is used for conveying supercritical carbon dioxide to the nozzle, the air inlet is filled with high-pressure air, the lubricating oil pipeline is used for conveying lubricating oil, the high-pressure air and the lubricating oil are mixed in the mixing cavity to form oil mist, then the oil mist is sprayed out from the nozzle, and the nozzle can keep a certain temperature under the flushing of the high-pressure air, so that the lubricating oil is prevented from freezing, and a good spraying effect is obtained.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the internal structure of an embodiment of the present invention;
FIG. 2 is a schematic view of the structure at the spout of an embodiment of the present invention.
Detailed Description
Referring to fig. 1-2, the invention relates to a low-temperature processing nozzle, which comprises a nozzle main body 1, wherein an air flow channel is arranged in the nozzle main body 1, two ends of the air flow channel are respectively provided with an air inlet 13 and a nozzle opening 14, a cooling medium pipeline 2 and a lubricating oil pipeline 3 are also arranged in the nozzle main body 1, the cooling medium can be supercritical carbon dioxide, liquid nitrogen or any other low-temperature medium, one end of the cooling medium pipeline 2 is positioned at the nozzle opening 14, the air flow channel comprises a mixing cavity 4, one side of the mixing cavity 4 is communicated with the nozzle opening 14, the other side of the mixing cavity 4 is communicated with the air inlet 13, and one end of the lubricating oil pipeline 3 is positioned in the mixing cavity 4.
The low-temperature processing nozzle is characterized in that the cooling medium pipeline 2 is used for conveying supercritical carbon dioxide to the nozzle 14, the air inlet 13 is filled with high-pressure air, the lubricating oil pipeline 3 is used for conveying lubricating oil, the high-pressure air and the lubricating oil are mixed in the mixing cavity 4 to form oil mist, the oil mist is sprayed out from the nozzle 14, particularly from a gap between the cooling medium pipeline 2 and the nozzle 14, and the nozzle 14 can keep a certain temperature under the flushing of the high-pressure air, so that the lubricating oil is prevented from freezing, and a good spraying effect is obtained.
Specifically, the rear portion of the nozzle body 1 is provided with an internal thread, through which the nozzle body 1 is fixedly connected to a high-pressure air source while the cooling medium pipe 2 is connected to the cooling medium source, and the lubrication oil pipe 3 is connected to the oil tank.
As a preferred embodiment of the present invention, a central plug 5 is disposed in the nozzle body 1, the central plug 5 and the nozzle body 1 enclose a mixing cavity 4, through holes for passing the cooling medium pipeline 2 and the lubricating oil pipeline 3 are disposed on the central plug 5, and an air vent 51 for allowing air to circulate is disposed on the central plug 5.
The central plug 5 has two main functions. Firstly, a mixing cavity 4 is formed by surrounding the nozzle main body 1, so that oil mist and the air inlet 13 are isolated to a certain extent, and the mixing cavity 4 supplements high-pressure air through the vent hole 51; secondly, play the effect of fixed cooling medium pipeline 2, specifically be equipped with the screw on the center plug 5, through setting up the machine meter screw in the screw in order to fix cooling medium pipeline 2.
As a preferred embodiment of the present invention, the mixing chamber 4 is a reducing circular hole, and the mixing chamber 4 includes a first mixing region 41 and a second mixing region 42, the second mixing region 42 being located at a side of the first mixing region 41 near the nozzle 14, the diameter of the first mixing region 41 being larger than the diameter of the second mixing region 42. Specifically, the lubricant and high pressure air are impact atomized in the first mixing zone 41, and the atomized oil mist enters the second mixing zone 42 and flows toward the nozzle 14.
As a preferred embodiment of the present invention, the diameter of the side of the first mixing zone 41 adjacent to the second mixing zone 42 is gradually reduced in the radial direction to be the same as the diameter of the second mixing zone 42. The lubricating oil and the high-pressure air are mixed and atomized in a space with a smaller volume, and the atomization rate and the atomization effect are improved.
As a preferred embodiment of the present invention, the outer periphery of the nozzle body 1 is further provided with air spouts 15, and the air spouts 15 communicate the air flow passage with the outer surface of the nozzle body 1.
In a preferred embodiment of the present invention, the nozzle body 1 has a combination of a truncated cone shape and a rectangular shape in cross section at one end of the nozzle 14.
Specifically, the air nozzle 15 can spray high-pressure air, the direction of the high-pressure air faces the nozzle 14, and the Wen Qiuer principle proves that the pressure of the high-pressure air adjacent to one side of the nozzle main body 1 is lower, so that the high-pressure air can be tightly attached to the nozzle main body 1 to move forward and finally reach the nozzle 14, the cooling medium and the lubricating oil mist can form an aggregation effect, and the cooling and lubricating effects are more obvious.
As a preferred embodiment of the present invention, the nozzle body 1 includes a nozzle holder 11 and a nozzle guide ring 12 fixedly connected, and the air flow passage is formed by holes in the nozzle holder 11 and the nozzle guide ring 12.
As a preferred embodiment of the present invention, one end of the nozzle guide ring 12 has a polygonal cross-sectional shape, the edges around the nozzle guide ring 12 are fastened in the nozzle fixing seat 11, and the plane around the nozzle guide ring 12 and the inner side surface of the nozzle fixing seat 11 enclose an air nozzle 15.
As a preferred embodiment of the invention, the cooling medium pipe 2 extends outwards from the nozzle 14, so that the nozzle 14 is prevented from freezing when the cooling medium is sprayed out.
As a preferred embodiment of the invention, the length X of the cooling medium duct 2 extending outwards from the nozzle opening 14 has a value in the range 0<X.ltoreq.0.5 mm.
The present application is, of course, not limited to the above-described embodiments, and one skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the application, and these equivalent modifications or substitutions are intended to be included in the scope of the present application as defined in the appended claims.
Claims (7)
1. A low temperature process nozzle, characterized by: the spray nozzle comprises a spray nozzle body, wherein an air flow channel is arranged in the spray nozzle body, two ends of the air flow channel are respectively provided with an air inlet and a spray nozzle, a cooling medium pipeline and a lubricating oil pipeline are also arranged in the spray nozzle body, one end of the cooling medium pipeline is positioned at the spray nozzle, the air flow channel comprises a mixing cavity, one side of the mixing cavity is communicated with the spray nozzle, the other side of the mixing cavity is communicated with the air inlet, and one end of the lubricating oil pipeline is positioned in the mixing cavity;
The cooling medium pipeline is used for conveying supercritical carbon dioxide to the spray nozzle;
the high-pressure air and the lubricating oil can be mixed in the mixing cavity to form oil mist, and a gap formed between the cooling medium pipeline and the nozzle is used for spraying the oil mist;
The periphery of the nozzle main body is also provided with an air nozzle capable of spraying high-pressure air, the air nozzle is communicated with the air flow channel and the outer surface of the nozzle main body, and the direction of the high-pressure air faces the nozzle.
2. The cryogenic process nozzle of claim 1, wherein: the novel spray nozzle is characterized in that a central plug is arranged in the spray nozzle main body, the central plug and the spray nozzle main body enclose the mixing cavity, a through hole for a cooling medium pipeline and a lubricating oil pipeline to pass through is formed in the central plug, and an air vent for air circulation is formed in the central plug.
3. The cryogenic process nozzle of claim 2, wherein: the mixing cavity is a reducing round hole, the mixing cavity comprises a first mixing area and a second mixing area, the second mixing area is positioned on one side, close to the nozzle, of the first mixing area, and the diameter of the first mixing area is larger than that of the second mixing area.
4. The cryogenic process nozzle of claim 1, wherein: the nozzle main body comprises a nozzle fixing seat and a nozzle guide ring which are fixedly connected, and the air flow channel consists of holes in the nozzle fixing seat and the nozzle guide ring.
5. The cryogenic process nozzle of claim 4, wherein: the cross-sectional shape of nozzle guide ring one end is the polygon, the edge card of nozzle guide ring all around is fixed in the nozzle fixing base, the plane of nozzle guide ring all around and the medial surface of nozzle fixing base enclose into the air spout.
6. The cryogenic process nozzle of claim 1, wherein: the cooling medium conduit extends outwardly from the spout.
7. The cryogenic process nozzle of claim 1, wherein: the length of the cooling medium pipe extending outwards from the nozzleThe range of the values is as follows。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174682.2A CN109174486B (en) | 2018-10-09 | 2018-10-09 | Low-temperature processing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174682.2A CN109174486B (en) | 2018-10-09 | 2018-10-09 | Low-temperature processing nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109174486A CN109174486A (en) | 2019-01-11 |
| CN109174486B true CN109174486B (en) | 2024-09-24 |
Family
ID=64947151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811174682.2A Active CN109174486B (en) | 2018-10-09 | 2018-10-09 | Low-temperature processing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109174486B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275088A (en) * | 2010-06-12 | 2011-12-14 | 成都三洪商贸有限公司 | Low-temperature atomized lubrication cooling system |
| CN102844127A (en) * | 2010-04-07 | 2012-12-26 | 新日本制铁株式会社 | Lubricating oil supply facility and lubricating oil supply method |
| CN104985477A (en) * | 2015-07-24 | 2015-10-21 | 上海金兆节能科技有限公司 | Oil-water-gas three-phase mixing nozzle and nozzle system comprising same |
| CN107398777A (en) * | 2017-09-22 | 2017-11-28 | 东莞安默琳机械制造技术有限公司 | A kind of supercritical carbon dioxide compound atomizing jet for intermetallic composite coating |
| CN107639461A (en) * | 2017-09-25 | 2018-01-30 | 东莞安默琳机械制造技术有限公司 | Automatic liquid nitrogen combined mist cooling system |
| CN209303007U (en) * | 2018-10-09 | 2019-08-27 | 汇专绿色工具有限公司 | A kind of low temperature process nozzle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2555752B1 (en) * | 2010-04-09 | 2019-06-26 | Pacira Pharmaceuticals, Inc. | Method for formulating multivesicular liposomes |
| DE102011004724A1 (en) * | 2011-02-25 | 2012-08-30 | Robert Bosch Gmbh | Binary fuel nozzle for use with cleaning chamber of injector for injecting fuel into combustion chamber of internal combustion engine, is provided with nozzle body and inlet for supply of gaseous medium |
| CN108202271B (en) * | 2018-03-14 | 2024-04-19 | 广东技术师范大学 | Low-temperature micro-lubrication device based on supercritical carbon dioxide |
-
2018
- 2018-10-09 CN CN201811174682.2A patent/CN109174486B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844127A (en) * | 2010-04-07 | 2012-12-26 | 新日本制铁株式会社 | Lubricating oil supply facility and lubricating oil supply method |
| CN102275088A (en) * | 2010-06-12 | 2011-12-14 | 成都三洪商贸有限公司 | Low-temperature atomized lubrication cooling system |
| CN104985477A (en) * | 2015-07-24 | 2015-10-21 | 上海金兆节能科技有限公司 | Oil-water-gas three-phase mixing nozzle and nozzle system comprising same |
| CN107398777A (en) * | 2017-09-22 | 2017-11-28 | 东莞安默琳机械制造技术有限公司 | A kind of supercritical carbon dioxide compound atomizing jet for intermetallic composite coating |
| CN107639461A (en) * | 2017-09-25 | 2018-01-30 | 东莞安默琳机械制造技术有限公司 | Automatic liquid nitrogen combined mist cooling system |
| CN209303007U (en) * | 2018-10-09 | 2019-08-27 | 汇专绿色工具有限公司 | A kind of low temperature process nozzle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109174486A (en) | 2019-01-11 |
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| CB02 | Change of applicant information |
Address after: 510663 First and Second Floors of the Portal Machine Building (Block C) of Product Yao Electronic Industry Park, No. 8, Nanyun No. 2 Road, Science City, Guangzhou High-tech Industrial Development Zone, Guangdong Province Applicant after: CONPROFE GREEN TOOLS Co.,Ltd. Applicant after: CONPROFE TECHNOLOGY GROUP Co.,Ltd. Address before: 510663 First and Second Floors of the Portal Machine Building (Block C) of Product Yao Electronic Industry Park, No. 8, Nanyun No. 2 Road, Science City, Guangzhou High-tech Industrial Development Zone, Guangdong Province Applicant before: GUANGZHOU HUIZHUAN TOOLS Co.,Ltd. Applicant before: CONPROFE TECHNOLOGY GROUP Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200211 Address after: 510663 No. 6, Yuner Road, Science City, Guangzhou high tech Industrial Development Zone, Guangzhou, Guangdong Province Applicant after: CONPROFE TECHNOLOGY GROUP Co.,Ltd. Applicant after: SMARTGUY INTELLIGENT EQUIPMENT Co.,Ltd. GUANGZHOU BRANCH Address before: 510663, Guangdong, Guangzhou hi tech Industrial Development Zone, science, South Road, No. two, No. 8, Yao electronics industrial park gate building (C block), first and two floors Applicant before: CONPROFE GREEN TOOLS Co.,Ltd. Applicant before: CONPROFE TECHNOLOGY GROUP Co.,Ltd. |
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