KR20140008899A - Freezing protective apparatus of airlees pump with a vortex tube used in painting machine - Google Patents

Freezing protective apparatus of airlees pump with a vortex tube used in painting machine Download PDF

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Publication number
KR20140008899A
KR20140008899A KR1020120076495A KR20120076495A KR20140008899A KR 20140008899 A KR20140008899 A KR 20140008899A KR 1020120076495 A KR1020120076495 A KR 1020120076495A KR 20120076495 A KR20120076495 A KR 20120076495A KR 20140008899 A KR20140008899 A KR 20140008899A
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KR
South Korea
Prior art keywords
air
temperature
low temperature
outlet
airless pump
Prior art date
Application number
KR1020120076495A
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Korean (ko)
Inventor
유이기
Original Assignee
유이기
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Publication date
Application filed by 유이기 filed Critical 유이기
Priority to KR1020120076495A priority Critical patent/KR20140008899A/en
Publication of KR20140008899A publication Critical patent/KR20140008899A/en

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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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container

Abstract

The present invention relates to an apparatus for preventing an airless pump of a painting machine from being frozen by using air pressure, and comprises an air control device which controls the supply and discharge of air with regard to the airless pump and includes an air supply guide path which receives air from the outside to prevent an inner part from being frozen; and a vortex tube which supplies the air from a high temperature outlet to the air supply guide path of the air control device and discharges the air from a low temperature outlet to the outside. The convenience of a worker is also improved by supplying the air of a high or low temperature from the high or low temperature outlet to the air working uniform of a worker. [Reference numerals] (100) Air control device; (110) Air compressor; (200) Vortex tube; (224,234) Temperature measurement unit; (240) Low temperature radiation unit; (300) Air working uniform

Description

FREEZING PROTECTIVE APPARATUS OF AIRLEES PUMP WITH A VORTEX TUBE USED IN PAINTING MACHINE}

The present invention relates to a device for preventing freezing of an airless pump of a sprayer operated using pneumatic pressure.

As shown in FIG. 1, an airless pump of a sprayer generally used is provided with an air cylinder 103 inside a casing 102, and the outside of the air cylinder 103 is operated by the operation of an air compressor. It is supplied to the main supply pipe 104 of the air control system (a kind of 'check valve') 2 above the sprayer 1 via a regulator, oiler, filter, or the like.

The supplied air feeds air to the upper portion of the air cylinder 103 by operating the valve of the air conditioner 2, and the piston 105 is lowered by the air supplied to the upper portion of the air cylinder 103, and the shot of the spring is carried out. It rebounds at high speed by the force.

At this time, the air is continuously supplied to the lower portion of the air cylinder 103 by the operation of the valve of the air conditioner (2) while repeating the operation of the high pressure air through the air cylinder (103) again to the air conditioner (2) It is discharged to the reverse side at the time of feeding and ejected to the silencer provided in the upper part.

However, the air conditioner (2) having a check valve function while adjusting the air supply to the upper and lower air cylinders (103) is at room temperature when air is injected from the outside, but is compressed and discharged at high pressure through the air cylinder (103). Since the temperature is lowered to about -30 ° C on the control cylinder (4) and the control piston (5) of the air conditioner (2) there is a problem that the freezing phenomenon due to the temperature difference of the air is caused. As a result, air is not supplied smoothly, and there is a problem such as deterioration in reliability of operation of the apparatus.

As an airless pump equipped with an anti-icing device for solving such a problem, Korean Utility Model Publication No. 20-0204395 has been disclosed. As shown in FIG. 2, a control housing 3 constituting the air conditioner 2 is provided. In the upper part, a housing 8 having a flange 7 having an air discharge hole 3a of the control housing 3 and an air discharge hole 7a corresponding thereto is installed, and on one side of the housing 8, an air compressor is provided. The branched air supply pipe is installed, and the air supply pipe is formed in a circumferential shape on the housing (8) and is in communication with the air supply guide (13) sealed with a cap (16) with a packing (15) interposed therebetween. In the air supply guide 13, a plurality of air blowing holes 14 having a predetermined inclination toward the center direction of the lower air conditioner 2 are formed. Thereby, the freezing phenomenon was reduced by the normal temperature air supplied from the air blowing hole 14 to the air conditioner 2.

However, since the air injected from the air blowing hole 14 is high-pressure air branched from the air compressor 53, its temperature is lowered while being exposed to the atmosphere, and thus there is a problem that the freezing phenomenon cannot be prevented at the source.

Korean Patent Laid-Open Publication No. 10-0782447 has been disclosed as another conventional airless pump with an anti-icing device, and FIG. 3 (for reference, reference numerals shown in FIG. 3 are completely different from those shown in FIGS. 1 and 2). As shown in FIG. 2, the heater 16 is installed between the air regulator 11 and the air injection union 8 connected to the air injection hose 12 to supply the warmed air to the cylinder 5 and the air heater 11. A structure for preventing freezing by supplying the manifold 7 portion, that is, the airless pump portion, has been disclosed.

However, when installing a separate heater 15 for heating the air supplied to the airless pump portion, there is a problem that the volume of the sprayer is increased and a separate power source for heating the air is required.

When painting is done in a confined space, the operator is less efficient in the heat. In addition, when the painting work is performed in the outer space in winter, the worker is reduced due to the cold work efficiency. Therefore, in order to improve such poor working environment, work clothes supplied with cold or warm air have been used.

However, in order to supply cold air or warm air to such work clothes, there was a problem that a separate air-conditioning device is required.

On the other hand, the vortex tube (Vortex Tube) constituting the present invention, as shown in Figure 4, the compressed air supplied to the compressed air inlet 210 of the vortex tube 200 is introduced into the rotating chamber to rotate at a very high speed While forming the primary vortex toward the high temperature outlet 220 side is partially discharged to the outlet by the control valve (30 ~ 40 ℃). And the remaining air not discharged is conveyed by the control valve to form a secondary vortex is discharged to the low temperature outlet 230 side, wherein the flow of the secondary vortex passes through the lower pressure space inside the flow of the primary vortex While losing calories, it is directed toward the low temperature exit 230 side. Arrows indicated by double lines in FIG. 4 indicate the flow of hot air, and arrows indicated by single lines indicate the flow of cold air.

Temperature control of the air discharged from the high temperature outlet 220 and the low temperature outlet 230 is performed by adjusting the flow rate of the hot air is discharged using a control screw (not shown) installed on the high temperature outlet 220. That is, when the flow rate of the high temperature outlet 220 is set high by using the adjustment screw, the rising width of the inlet air becomes smaller by that amount, while the flow rate of the low temperature outlet 230 is smaller, but the width of the temperature drop is larger. You lose.

Such vortex tubes are typically used as air coolers and rarely used as heaters, and in particular have not been applied to airless pumps for painters.

In order to solve the above problems, the present invention is to provide an anti-freezing device of the airless pump coupled to the vortex tube that can supply a high temperature air higher than room temperature without using a separate heater in the airless pump is installed.

It is another object of the present invention to provide an apparatus for preventing icing of an airless pump in which a vortex tube is coupled to supply a part of the hot air discharged from the vortex tube or low temperature air to a worker's blowing work clothes.

The anti-icing device of the airless pump for sprayer for solving the above-mentioned problems, the air is provided with an air supply guide path for adjusting the air supply and discharge to the airless pump, the air supplied from the outside to prevent the internal freezing Regulator; And a compressed air inlet through which high pressure air is supplied from the outside, a high temperature outlet through which high temperature air is discharged, a low temperature outlet through which low temperature air is discharged, and an adjustment screw for adjusting the amount of high temperature air and low temperature air. And a vortex tube for supplying air at the high temperature outlet to the air supply guide and discharging the air at the low temperature outlet away from the air conditioner. .

Preferably, the compressed air inlet receives a portion of the compressed air from the air compressor for supplying air to the airless pump.

Preferably, the first and second connection pipes are coupled to the high temperature outlet and the hot air is branched, the first connection pipes are connected to the air supply guide path, and the second connection pipes of hot air By installing a first valve to control the flow rate, if necessary, supply the hot air to the air work clothes worn by the operator.

Preferably, it is provided with a third, fourth connecting pipe coupled to the low temperature outlet, the low-temperature air, the third connecting pipe is connected to the low-temperature radiator for discharging the low-temperature air away from the air conditioner and A second valve for controlling the flow rate of the low-temperature air is installed in the fourth connection pipe to supply low-temperature air to the air work clothes worn by the worker as necessary.

Preferably, at least one of the second connection pipe or the fourth connection pipe further comprises a temperature measuring unit for measuring the temperature of the air.

According to the freezing prevention device of the airless pump for a sprayer using the vortex tube of the present invention has the following effects.

First, the high temperature air is supplied to the air conditioner using a lightweight vortex tube, and the low temperature air is released away from the air conditioner to prevent freezing. In addition, the high-pressure air supplied to the vortex tube can be supplied from the air compressor used in the airless pump equipment, thus eliminating the need for additional equipment.

Secondly, some of the hot air discharged from the hot outlet of the vortex tube or all or a portion of the cold air discharged from the cold outlet may be supplied to the air work clothes according to the needs of the operator to increase the convenience of the operator.

1 is a schematic view of a sprayer equipped with a conventional airless pump.
2 is a cross-sectional view showing a device for preventing freezing of a conventional airless pump.
3 is a view showing an ice protection device of another conventional airless pump.
Figure 4 is a cross-sectional view showing a typical vortex tube.
5 is a block diagram showing an apparatus for preventing icing of an airless pump according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The anti-icing device of the airless pump of the present invention is mainly composed of an air conditioner 100 and a vortex tube (Vortex Tube, 200).

First, the air conditioner 100 is a device for controlling supply and discharge of air for operating the airless pump, and is relatively hotter than air discharged from the airless pump to prevent freezing inside the air conditioner 100. Phosphorus air includes all of the apparatus having a flow path (hereinafter, 'air supply guide path') supplied from the outside into the air conditioner 100.

As an example of the air conditioner 100, the apparatus described as the prior art of Figs. That is, the housing 8 may include a circumferential air supply guide path 13 and an air ejection hole 14 connected thereto and injecting air at room temperature. Therefore, detailed description thereof will be omitted.

Next, the vortex tube 200 will be described with reference to FIGS. 4 and 5, and the compressed air is supplied to the compressed air inlet 210, and both ends of the high temperature outlet 220 discharge the hot air. It is provided with a low temperature outlet 230 through which low temperature air is discharged. It is also provided with a control screw (not shown as a general configuration) for controlling the temperature of the hot and cold air by relatively adjusting the amount of hot and cold air. In this case, the compressed air supplied to the compressed air inlet 210 may use some of the compressed air supplied from the air compressor 110 to the air conditioner 100. Therefore, a separate pressure air source is not required for the operation of the vortex tube 200.

The hot air discharged from the hot outlet 220 is supplied to the air supply guide as described above to prevent freezing inside the air conditioner 100. And the low temperature air discharged from the low temperature outlet 230 is to be discharged away from the air conditioner (100).

On the other hand, the present invention may supply the hot or cold air discharged from the hot outlet 220 or the cold outlet 230 to the air work clothes worn by the worker. Here, the 'air work clothes' means to supply high temperature air to the worker's work clothes when the outside air temperature is low, and to improve the workability by maintaining the body temperature of the worker by supplying low temperature air to the work clothes when the outside air temperature is high. Means the work clothes used.

In detail, the first and second connection pipes 221 and 222 through which hot air is branched are connected to the high temperature outlet 220. The first connection pipe 221 is connected to the air supply guide of the air conditioning device 100, the second connection pipe 222 to adjust the flow rate of the temperature measuring unit 224 and the hot air to measure the temperature By installing the first valve 223 so as to supply high-temperature air as necessary to the air work clothes 300 worn by the painter according to the air temperature. That is, the operator can properly maintain the temperature of the air work clothes 300 by adjusting the opening and closing amount of the first valve 223 according to the temperature displayed on the temperature measuring unit 224.

In the same manner, the third and fourth connection pipes 231 and 232 through which low temperature air is branched are installed at the low temperature outlet 230. The third connection pipe 231 is connected to the low-temperature radiator 240 for discharging the low-temperature air away from the air conditioner (100). The low-temperature radiator 240 sets the flow rate of the high-temperature outlet 220 to increase the flow rate of the low-temperature outlet 230 to prevent the frostbite of the worker as the air is discharged at a very low temperature although the amount is very small. In order to prevent cold air from coming into direct contact with the operator's skin, a cover made of a fiber material may be used. In addition, the fourth connection pipe 232 is provided with a temperature measuring unit 234 capable of measuring temperature and a second valve 233 to adjust the flow rate of the hot air to the air work clothes 300 worn by the painter. Depending on the air temperature, it is possible to supply as low temperature air as necessary.

According to the above-described antifreeze device of the airless pump of the present invention, in addition to preventing the freezing of the air conditioner 100, even in the cold or cold weather, the operator can be selectively supplied with high or low temperature air to the air work clothes to increase the body temperature It can be maintained properly, thereby improving work efficiency.

In the above description, the embodiment of the present invention has been described, but the scope of the present invention is apparent from the modifications and equivalents based on the technical spirit described in the claims below.

100: air conditioner 110: air compressor
200: vortex tube 210: air inlet
220: high temperature outlet 221: first connector
222: second connection pipe 223: first valve
224: temperature measuring unit 230: low temperature exit
231: third connector 232: fourth connector
233: second valve 234: temperature measuring unit
240: low temperature radiation unit 300: air work clothes

Claims (5)

In the freezing prevention device of the airless pump for sprayer,
An air conditioner which regulates air supply and discharge to the airless pump, and has an air supply guide path receiving air from the outside to prevent freezing therein; And
Compressed air inlet through which high pressure air is supplied from the outside, high temperature outlet through which high temperature air is discharged, low temperature outlet through which low temperature air is discharged, and adjusting screw for adjusting the amount of high temperature air and low temperature air, respectively. A vortex tube for supplying the air at the high temperature outlet to the air supply guide and discharging the air at the low temperature outlet away from the air conditioner;
Anti-icing device of the airless pump comprising a. The method of claim 1,
The compressed air inlet is provided with a portion of the compressed air from the air compressor for supplying air to the airless pump characterized in that the ice free pump of the airless pump. The method of claim 1,
It is coupled to the hot outlet is provided with a first, second connecting pipe for branching the hot air,
The first connecting pipe is connected to the air supply guide,
And a first valve for controlling a flow rate of the hot air in the second connection pipe to supply high temperature air to the air work wear worn by the worker as necessary. The method of claim 1,
It is coupled to the low temperature outlet is provided with a third, fourth connecting pipe for branching low-temperature air,
The third connector is connected to the low-temperature radiator for discharging the low-temperature air away from the air conditioning device,
And a second valve for adjusting a flow rate of the low temperature air in the fourth connection pipe to supply the low temperature air to the air work wear worn by the worker as necessary. The method according to claim 3 or 4,
At least one of the second connection pipe or the fourth connection pipe further comprises a temperature measuring unit for measuring the temperature of the air, characterized in that the anti-freeze of the airless pump.
KR1020120076495A 2012-07-13 2012-07-13 Freezing protective apparatus of airlees pump with a vortex tube used in painting machine KR20140008899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120076495A KR20140008899A (en) 2012-07-13 2012-07-13 Freezing protective apparatus of airlees pump with a vortex tube used in painting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120076495A KR20140008899A (en) 2012-07-13 2012-07-13 Freezing protective apparatus of airlees pump with a vortex tube used in painting machine

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KR20140008899A true KR20140008899A (en) 2014-01-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101516406B1 (en) * 2014-10-17 2015-05-04 (주)예림도장기 Airless pump with the anti-icing function
KR20210011650A (en) * 2019-07-23 2021-02-02 (주)동광엔지니어링 Cool air and hot air dispenser
CN112958309A (en) * 2021-04-22 2021-06-15 山东九旭机械科技有限公司 Hydraulic intelligent control polyurea spraying machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101516406B1 (en) * 2014-10-17 2015-05-04 (주)예림도장기 Airless pump with the anti-icing function
KR20210011650A (en) * 2019-07-23 2021-02-02 (주)동광엔지니어링 Cool air and hot air dispenser
CN112958309A (en) * 2021-04-22 2021-06-15 山东九旭机械科技有限公司 Hydraulic intelligent control polyurea spraying machine

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