CN113251307A - Liquid carbon dioxide supply device and coating device - Google Patents
Liquid carbon dioxide supply device and coating device Download PDFInfo
- Publication number
- CN113251307A CN113251307A CN202110508311.9A CN202110508311A CN113251307A CN 113251307 A CN113251307 A CN 113251307A CN 202110508311 A CN202110508311 A CN 202110508311A CN 113251307 A CN113251307 A CN 113251307A
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- Prior art keywords
- carbon dioxide
- liquid carbon
- bottle
- liquid
- mixer
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/013—Carbone dioxide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0192—Propulsion of the fluid by using a working fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a liquid carbon dioxide supply device and a coating device. A liquid carbon dioxide supply device (100) is provided with: a liquid carbon dioxide bottle (20) for storing liquid carbon dioxide; a gas bottle (10) connected to the liquid carbon dioxide bottle (20) and configured to supply gas into the liquid carbon dioxide bottle (20); an outlet pipe (22) for communicating the inside and outside of the liquid carbon dioxide bottle (20) and for arranging the end of the liquid carbon dioxide bottle (20) in the liquid inside the liquid carbon dioxide bottle (20).
Description
The present application is a divisional application of chinese patent application having an application number of 201680084096.1, an application date of 2016, 4 and 5, and an invention name of "liquid carbon dioxide supply device and coating device".
Technical Field
The present invention relates to a liquid carbon dioxide supply device and a coating device.
Background
A so-called carbon dioxide coating method is known in which a mixture of a coating material and carbon dioxide is sprayed onto an object.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 4538625
Patent document 2: japanese patent No. 5429928
Patent document 3: japanese patent No. 5429929
Patent document 4: japanese patent No. 5660605
Patent document 5: japanese patent No. 5568801
Patent document 6: japanese patent No. 5608864
Disclosure of Invention
Problems to be solved by the invention
However, in the conventional method, carbon dioxide in a liquid discharged from a reservoir is pressurized by a high-pressure pump such as a plunger pump, mixed with a paint, and sprayed from a sprayer. However, if carbon dioxide, which is a liquefied gas, is pressurized by a plunger pump, the apparatus becomes a high-pressure gas production facility, and therefore, the facility cost increases. In addition, if a plunger pump is used, pulsation may occur in the flow rate of carbon dioxide.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a carbon dioxide supply device capable of stably supplying liquid carbon dioxide without using a high-pressure pump such as a plunger pump, and a coating device using the same.
Means for solving the problems
The first liquid carbon dioxide supply device according to the present invention includes: a carbon dioxide bottle for storing liquid carbon dioxide; a gas cylinder connected to the carbon dioxide cylinder and configured to supply gas into the carbon dioxide cylinder; an outlet pipe for connecting the inside and outside of the carbon dioxide bottle and for disposing an end portion inside the carbon dioxide bottle inside the liquid inside the carbon dioxide bottle.
According to the present invention, by supplying gas from a gas bottle into a carbon dioxide bottle, liquid carbon dioxide in the carbon dioxide bottle can be supplied to the outside, for example, a mixer, via an outlet pipe provided in the carbon dioxide bottle without using a high-pressure pump such as a plunger pump.
The apparatus may further include a valve connected between the gas bottle and the carbon dioxide bottle to adjust a flow rate of the gas supplied to the carbon dioxide bottle.
The first coating device according to the present invention includes: the liquid carbon dioxide supply device described above; a mixer for mixing the carbon dioxide supplied from the liquid carbon dioxide supply device with the coating material to obtain a mixture; a sprayer for spraying the mixture.
The first carbon dioxide coating method according to the present invention includes: supplying liquid carbon dioxide to the mixer by using a first liquid carbon dioxide supply device; supplying the paint to the mixer; and spraying a mixture of carbon dioxide and the coating material onto the object.
The second liquid carbon dioxide supply device according to the present invention includes: a carbon dioxide bottle for storing liquid carbon dioxide; an outlet pipe for connecting the inside and outside of the carbon dioxide bottle and for disposing an end portion inside the carbon dioxide bottle inside the liquid inside the carbon dioxide bottle; a mixer that mixes the carbon dioxide supplied from the outlet pipe with the dope to obtain a mixture; and a sprayer for spraying the mixture. Further, the liquid carbon dioxide in the carbon dioxide bottle is supplied to the mixer without pressurizing the liquid carbon dioxide.
The second carbon dioxide coating method according to the present invention includes: supplying carbon dioxide from a carbon dioxide bottle storing liquid carbon dioxide to a mixer; supplying the paint to the mixer; and spraying a mixture of carbon dioxide and the coating material onto the object. Further, carbon dioxide is supplied from the carbon dioxide bottle to the mixer without pressurizing liquid carbon dioxide between the carbon dioxide bottle and the mixer.
In these second apparatus and method, since the liquid carbon dioxide is directly supplied to the mixer without pressurizing the liquid carbon dioxide, the liquid carbon dioxide can be supplied without using a high-pressure pump such as a plunger pump.
ADVANTAGEOUS EFFECTS OF INVENTION
The present invention has an object to provide a carbon dioxide supply device capable of stably supplying liquid carbon dioxide without using a high-pressure pump such as a plunger pump, and a coating apparatus using the same.
Drawings
Fig. 1 is a flowchart of a liquid carbon dioxide supply device 100 and a coating device 200 according to a first embodiment of the present invention.
Fig. 2 is a flowchart of the liquid carbon dioxide supply device 100 and the coating device 300 according to the second embodiment of the present invention.
Fig. 3 is a flowchart of a liquid carbon dioxide supply device 400 and a coating device 500 according to a third embodiment of the present invention.
Fig. 4 is a flowchart of the liquid carbon dioxide supply device 400 and the coating device 600 according to the fourth embodiment of the present invention.
Detailed Description
A first embodiment of the present invention will be described with reference to the drawings.
< first embodiment >
Referring to fig. 1, a liquid carbon dioxide supply device 100 according to the present embodiment will be described. The liquid carbon dioxide supply device 100 includes: gas bottle 10, line L1, valve 12, liquid carbon dioxide bottle (carbon dioxide bottle) 20, outlet tube 22, valve 24, line L2.
The gas cylinder 10 stores high-pressure gas. The type of gas is not particularly limited as long as it does not react with carbon dioxide. Examples thereof include nitrogen, air, argon, helium and the like. The pressure of the gas cylinder may be higher than that of the liquid carbon dioxide cylinder 20, and may be, for example, 10 to 15 MPa.
Line L1 connects the gas bottle 10 with the liquid carbon dioxide bottle 20. The line L1 is provided with a valve 12 for controlling the amount of gas supplied from the gas cylinder 10 to the liquid carbon dioxide cylinder.
The liquid carbon dioxide bottle 20 is a pressure container for storing liquid carbon dioxide. The liquid carbon dioxide bottle 20 is maintained at a temperature condition in which a gas-liquid interface I is formed by carbon dioxide. The preferable temperature is-50 to 31 ℃ and the surface pressure is 0.68 to 7.4 MPa. When the temperature is 31 ℃ or higher, the gas-liquid interface I is not formed inside the liquid carbon dioxide bottle 20, and the carbon dioxide inside the bottle is in a supercritical state, which is not suitable. The liquid carbon dioxide bottle 20 may be provided with a temperature regulator 26 as needed. The liquid carbon dioxide bottle 20 has an outlet tube 22. The outlet pipe 22 communicates the inside and outside of the liquid carbon dioxide bottle 20, and an end portion in the liquid carbon dioxide bottle 20 is disposed below the gas-liquid interface I in the liquid carbon dioxide bottle 20. The other end of the outlet pipe 22 is exposed to the outside of the liquid carbon dioxide bottle 20 and connected to a line L2. A valve 24 is provided in the line L2.
Next, a method of using the liquid carbon dioxide supply apparatus 100 will be described.
The pressure in the liquid carbon dioxide bottle 20 is regulated according to the temperature in a state where the valves 12 and 24 are closed. For example, if the temperature is 20 ℃, the gauge pressure is about 5.7MPa, and the absolute pressure is 6.7 MPa. Next, valve 24 and valve 12 are opened. Thereby, the gas in the gas bottle 10 is supplied to the liquid carbon dioxide bottle 20, and the liquid carbon dioxide in the liquid carbon dioxide bottle 20 is pushed out and supplied to the mixer 8 via the outlet pipe 22 and the line L2. The flow of carbon dioxide can generally be regulated by the opening of valve 12, and can also be regulated by valve 24. The pressure given by the gas to the liquid carbon dioxide in the liquid carbon dioxide bottle can be 0.68MPa or more, and can be 3.5 to 14.7MPa, as represented by a gauge pressure. This pressure is equivalent to a pressure (for example, 3.5 to 14.7MPa) applied by a plunger pump or the like.
With such a liquid carbon dioxide supply device 100, a column can be eliminatedIn the case of a high-pressure pump such as a stopper pump, the liquid carbon dioxide in the liquid carbon dioxide bottle 20 is stably supplied to the outside. When a high-pressure pump such as a plunger pump is used, if the processing capacity is 300m3Day one or more, the first production was carried out. On the other hand, the liquid carbon dioxide supply device 100 corresponds to the liquid surface pressurization in the vessel of the high-pressure gas production facility, and the processing capacity is considered to be 0m3The second production was therefore performed, and the legal procedure for the high-pressure gas production industry was simple and sufficient. Further, since an expensive high-pressure pump such as a plunger pump is not used, the cost of equipment and the like becomes low. Further, if a plunger pump is used, the flow rate of carbon dioxide is likely to pulsate, but in the present embodiment, the flow rate of carbon dioxide is less likely to pulsate.
Next, a coating apparatus 200 provided with such a liquid carbon dioxide supply apparatus 100 will be described. The coating apparatus 200 includes: the liquid carbon dioxide supply device 100, the paint tank 1, the pump 2, the accumulator 3, the mixer 8, the lines L3 to L4, and the sprayer 9 described above.
The paint tank 1 stores paint containing a liquid of a resin component. The coating material may contain a solvent other than the resin component. The pressure in the paint tank 1 is usually atmospheric pressure, which is normal pressure, but the pressure may be increased by 0.1 to 0.2MPa to stably supply the paint to the pump.
The resin component is not particularly limited as long as it is a resin generally used in a coating material, and examples thereof include an epoxy resin, an acrylic urethane resin, a polyester resin, an acrylic silicone resin, an alkyd resin, a UV curable resin, a vinyl chloride vinyl acetate resin (hydrochloric acid ビ), a styrene butadiene rubber, a polyester urethane resin, a styrene acrylic resin, an amino resin, a polyurethane resin, a phenol resin, a vinyl chloride resin, a nitrocellulose resin, a cellulose acetate butyrate resin, a styrene resin, and a melamine urea resin. They may be used alone or in combination of 2 or more. The resin component may be a one-liquid curable resin, a two-liquid curable resin, or an active energy ray curable resin such as UV.
The solvent dissolves/disperses the resin component, improving the fluidity of the coating. The solvent may be a single compound or a mixture. Examples of the solvent include methyl isobutyl ketone, 3-methoxybutyl acetate, propylene glycol monomethyl ether acetate, SOLVESSO 100 (trade name; manufactured by Toho ゼネラル Petroleum Co., Ltd.), SOLVESSO 150 (trade name; manufactured by Toho ゼネラル Petroleum Co., Ltd.), ethyl diglycol acetate, N-butanol, diisobutyl ketone, ethyl acetate, butyl acetate, toluene, xylene, isobutanol, diacetone alcohol, cyclohexanol, isophorone, ethyl-3-ethoxypropionate, propylene glycol monomethyl ether, diethylene glycol monobutyl ether, methyl propylene glycol (メチルプロピレンジグリコール), isobutyl acetate, isoamyl acetate, N-methyl-2-pyrrolidone, isopropyl acetate, methyl amyl ketone, methyl diethylene glycol, methyl cellosolve, cellosolve acetate, carbitol acetate, methyl amyl ketone, methyl diethylene glycol, methyl cellosolve acetate, carbitol acetate, methyl amyl acetate, methyl ethyl acetate, butyl acetate, ethyl acetate, butyl acetate, ethyl acetate, butyl acetate, ethoxypropyl acetate, acetone, methyl ethyl ketone, n-hexane, cyclohexane, heptane, ethylbenzene, mineral spirits, and the like.
In addition, other examples of the solvent are formamide, hydrazine, glycerol, N-methylformamide, 1, 4-diformylpiperazine, ethylenecyanohydrin, malononitrile, 2-pyrrolidine, ethylene carbonate, methylacetamide, ethylene glycol, methanol, dimethyl sulfoxide, phenol, 1, 4-diacetylpiperazine, maleic anhydride, 2-piperidone, formic acid, methylethylsulfone, pyrone, tetramethylene sulfone, propiolactone, propylene carbonate, N-nitrosodimethylamine, N-formylmorpholine, 3-methylsulfolane, nitromethane, ethanol, epsilon-caprolactam, propylene glycol, butyrolactone, chloroacetonitrile, methylpropylsulfone, furfuryl alcohol, phenylhydrazine, dimethyl phosphite, 2-methoxyethanol, diethylsulfone, ethylenediamine, ethylacetamide, 2-chloroethanol, Benzyl alcohol, 4-ethyl-1, 3-dioxolan-2-one, di (2-ethylhexyl) phthalate, dimethylformamide, diethylene glycol, 1, 4-butanediol, tetrahydro-2, 4-dimethylthiophene 1, 1-dioxide, acrylic acid, 1-propanol, acetonitrile, allyl alcohol, 4-acetylmorpholine, 1, 3-butanediol, formylpiperidine, pentanediol, isopropanol, ethylene glycol monophenyl ether, ethyl cellosolve.
When the coating material contains a solvent, the amount of the solvent to be mixed in the coating material is not particularly limited, and may be 25 to 10000 parts by mass, preferably 25 to 1000 parts by mass, and more preferably 87 to 461 parts by mass, per 100 parts by mass of the resin component.
The coating material can contain various additives other than those described above. For example, additives usually added to coating materials such as a cosolvent, a diluent, a pigment dispersant, an ultraviolet absorber, a light stabilizer, a leveling agent, an adhesion-imparting agent, a rheology-controlling agent, and a polymerization initiator may be contained. When a two-liquid curable resin is used as the resin component, a curing agent may be contained as an additive. The curing agent for the two-liquid curable resin is not particularly limited, and a curing agent generally used as a curing agent for a two-liquid curable resin such as isocyanate can be used.
The total amount of additives in the coating material is not particularly limited, and may be 0.1 to 1000 parts by mass per 100 parts by mass of the resin component.
The pump 2 pressurizes the paint supplied from the paint tank 1 through the line L3. The type of the pump is not particularly limited, and a known pump such as a plunger pump can be used. The pressure on the discharge side can be set to the same level as the pressure in the liquid carbon dioxide bottle.
The accumulator 3 accumulates fluid when the pressure in the system increases and discharges the fluid when the pressure in the system decreases, thereby absorbing the pressure variation in the system. The dope is supplied to the mixer 8 via a line L3.
The mixer 8 mixes the carbon dioxide supplied via the line L2 and the dope supplied via the line L3 to obtain a mixture. As the mixer 8, for example, an in-line mixer can be used. Typically, the carbon dioxide within the mixer 8 is a liquid. The mixing ratio of the carbon dioxide and the coating material during mixing can be such that the concentration of the carbon dioxide in the mixture is 5 to 95 mass%.
The sprayer 9 sprays the mixture supplied from the mixer 8 via a line L4 to the object. As the sprayer, various known nozzles can be used. The object is not particularly limited, and examples thereof include automobile bodies.
According to the present embodiment, since the liquid carbon dioxide supply device 100 described above is used, the coating material containing the liquid carbon dioxide can be suitably applied in the case of a high-pressure pump (plunger pump or the like) without carbon dioxide. Further, since the accumulator 3 is used, pulsation caused by the pump 2 is reduced, and fluctuation in the flow rate ratio of carbon dioxide to the paint and deterioration in the flatness of the film caused by the fluctuation can be suppressed.
< second embodiment >
Next, a coating apparatus 300 according to embodiment 2 will be described with reference to fig. 2. Here, only differences from the coating apparatus 200 of fig. 1 will be described. The painting apparatus 300 according to the present embodiment includes a solvent tank 30, a pump 31, an accumulator 32, lines L5, L6, and a mixer 33 in addition to the painting apparatus 200.
The solvent tank 30 stores a solvent. As the solvent, for example, a part of the solvent contained in the paint can of the coating apparatus 300 according to embodiment 1 or a solvent different from the solvent may be stored. Examples of the solvent are the same as those of embodiment 1.
The pump 31 pressurizes the solvent supplied from the solvent tank 30 via the line L5. The degree of pressurization may be the same as pump 2.
The accumulator 32 absorbs the pulsation of the pressure in the system generated by the pump 31.
The mixer 33 pre-mixes the carbon dioxide supplied from the liquid carbon dioxide supply device 100 via the line L2 and the solvent supplied via the line L5.
Then, the mixer 8 mixes the carbon dioxide-solvent pre-mixture via the line L6 with the dope supplied via the line L3, and supplies the resultant mixture to the atomizer 9 via the line L4.
According to the present embodiment, since the liquid carbon dioxide supply device 100 described above is used, a high-pressure pressurizing pump (plunger pump or the like) using carbon dioxide is not used, and the coating material containing liquid carbon dioxide can be applied appropriately. Further, since the pressure accumulators 3 and 32 are used, pulsation generated by the pumps 2 and 31 is reduced, and fluctuation in the flow rate ratio of carbon dioxide to the paint and deterioration in the flatness of the film due to the fluctuation can be suppressed.
< third embodiment >
Next, the carbon dioxide supply device 400 and the coating device 500 according to the third embodiment will be described with reference to fig. 3. The carbon dioxide supply device 400 according to the present embodiment is the same as the carbon dioxide supply device 400 according to the first embodiment except that the gas bottle 10, the line L1, and the valve 12 are removed from the liquid carbon dioxide supply device 100 according to the first embodiment.
In the present embodiment, liquid carbon dioxide is supplied to the mixer 8 through the outlet pipe 22 and the line L2 only by the pressure inside the liquid carbon dioxide bottle 20. That is, the liquid carbon dioxide in the liquid carbon dioxide bottle 20 is supplied to the mixer 8 without being pressurized. This also enables the liquid carbon dioxide to be supplied without using a high-pressure pump such as a plunger pump. Since carbon dioxide is not pressurized, it is not suitable for a high-pressure gas production facility, and the facility cost and the like become inexpensive. Of course, pulsation of the flow of carbon dioxide when the plunger pump is used is also less likely to occur.
< fourth embodiment >
Next, a coating apparatus 600 according to a fourth embodiment will be described with reference to fig. 4. Here, only the differences from the coating apparatus 300 of fig. 2 will be described. The carbon dioxide supply device 400 according to the present embodiment is the same as the carbon dioxide supply device 400 according to the second embodiment except that the gas bottle 10, the line L1, and the valve 12 are removed from the liquid carbon dioxide supply device 100 according to the second embodiment.
In the present embodiment, the liquid carbon dioxide is supplied to the mixer 8 through the outlet pipe 22 and the line L2 only by the pressure in the liquid carbon dioxide bottle 20. That is, the liquid carbon dioxide in the liquid carbon dioxide bottle is supplied to the mixer 8 through the mixer 33 without pressurizing the liquid carbon dioxide. This also enables the liquid carbon dioxide to be supplied without using a high-pressure pump such as a plunger pump. Since carbon dioxide is not pressurized, it is not suitable for a high-pressure gas production facility, and the facility cost and the like become inexpensive. Of course, pulsation of the flow of carbon dioxide when the plunger pump is used is also less likely to occur.
The present invention is not limited to the above embodiment, and various modifications can be adopted. For example, in the above embodiment, the outlet pipe extends vertically, but may be in a form penetrating the bottle wall.
In addition, an accumulator may be provided in the line L2.
Description of reference numerals
8 … mixer, 9 … atomizer, 10 … gas bottle, 12 … valve, 20 … liquid carbon dioxide bottle (pressure vessel), 22 … outlet pipe, 100 … liquid carbon dioxide supply device, 200, 300 … coating device.
Claims (3)
1. A coating device is provided with: a carbon dioxide bottle for storing liquid carbon dioxide; an outlet pipe for connecting the inside and outside of the carbon dioxide bottle and for disposing an end portion inside the carbon dioxide bottle inside the liquid inside the carbon dioxide bottle; a mixer that mixes the carbon dioxide supplied from the outlet pipe with the dope to obtain a mixture; and a sprayer for spraying the mixture, wherein the liquid carbon dioxide in the carbon dioxide bottle is supplied to the mixer without pressurization.
2. A carbon dioxide coating method, comprising: supplying carbon dioxide from a carbon dioxide bottle storing liquid carbon dioxide to a mixer; supplying the paint to the mixer; and a step of spraying a mixture of carbon dioxide and a coating material onto an object, wherein carbon dioxide is supplied from the carbon dioxide bottle to the mixer without pressurizing liquid carbon dioxide between the carbon dioxide bottle and the mixer.
3. The method according to claim 2, wherein in the step of supplying carbon dioxide, carbon dioxide is supplied from the carbon dioxide bottle storing the liquid carbon dioxide to the mixer via an outlet pipe,
the outlet pipe communicates the inside and outside of the carbon dioxide bottle, and an end of the outlet pipe in the carbon dioxide bottle is disposed in the liquid in the carbon dioxide bottle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016063632A JP6006448B1 (en) | 2016-03-28 | 2016-03-28 | Painting equipment |
| JP2016-063632 | 2016-03-28 | ||
| CN201680084096.1A CN108884968B (en) | 2016-03-28 | 2016-04-05 | Liquid carbon dioxide supply device and coating device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680084096.1A Division CN108884968B (en) | 2016-03-28 | 2016-04-05 | Liquid carbon dioxide supply device and coating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113251307A true CN113251307A (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110508311.9A Pending CN113251307A (en) | 2016-03-28 | 2016-04-05 | Liquid carbon dioxide supply device and coating device |
| CN201680084096.1A Active CN108884968B (en) | 2016-03-28 | 2016-04-05 | Liquid carbon dioxide supply device and coating device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201680084096.1A Active CN108884968B (en) | 2016-03-28 | 2016-04-05 | Liquid carbon dioxide supply device and coating device |
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| Country | Link |
|---|---|
| JP (1) | JP6006448B1 (en) |
| CN (2) | CN113251307A (en) |
| WO (1) | WO2017168759A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6755525B2 (en) | 2016-02-19 | 2020-09-16 | 東洋紡株式会社 | UV curable paint coating method and UV curable film manufacturing method |
| JP6235749B1 (en) * | 2017-07-07 | 2017-11-22 | 長瀬産業株式会社 | COATING GUN, COATING DEVICE, AND COATING METHOD |
| JP6516902B1 (en) * | 2018-06-08 | 2019-05-22 | 長瀬産業株式会社 | Painting apparatus and painting method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108884968B (en) | 2021-08-03 |
| CN108884968A (en) | 2018-11-23 |
| WO2017168759A1 (en) | 2017-10-05 |
| JP2017176919A (en) | 2017-10-05 |
| JP6006448B1 (en) | 2016-10-12 |
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