KR101427182B1 - Pneumatic supply tank that has air sections for condensate trapping - Google Patents

Abstract

A first partition 20 provided in the body 10 in the longitudinal direction to form a single air passage from the air inlet 13 to the air outlet 14 and a second partition 20 provided inside the body 10, And a plurality of first and second swash plates (31) dividing the inner peripheral surface of the moving body (10) and the first swash plate (30) and the second swash plate (31) Disclosed is a compressed air tank for a pneumatic device arranged so as to incline in at least one direction so as to descend. The present invention relates to a compressed air storage tank for efficiently removing condensed water while cooling compressed air. The compressed air storage tank includes a partition wall vertically arranged to form a long air passage extending from an air inlet to an air outlet, This paper introduces a condensate trapping structure inside a tank that allows water droplets of very small size to grow rapidly by using a horizontally arranged swash plate with a through hole to collect downwardly.
The present invention can be easily installed in various types of high pressure air tanks regardless of the shape and size. In addition, it provides a wide surface where the condensation nucleus can be adhered as much as possible when the air in the tank is stagnated. In the air flow condition, localized thermal expansion is automatically induced in each trapping section of the condensed water, Condensate can be flowed immediately upon riding, further enhancing the water removal function in the tank.

Description

[0001] The present invention relates to a compressed air tank for a pneumatic device having a condensate collection section,

The present invention relates to a compressed air storage tank for efficiently removing condensed water while cooling compressed air. The compressed air storage tank includes a partition wall vertically arranged to form a long air passage extending from an air inlet to an air outlet, The present invention relates to a structure for collecting condensed water inside a tank, in which water droplets of a minute size can be quickly grown using a horizontal arrangement swash plate with a through hole formed therein to collect downwardly.

The equipment for supplying compressed air to the pneumatic device consists of an air compressor and a compressed air tank. The compressed air to be supplied at this time is mainly stored in the compressed air tank in an amount sufficient for sucking, compressing and using the ambient air by the air compressor, and then supplying the compressed air to the pneumatic piping little by little whenever necessary.

The surrounding atmosphere, which is used as compressed air, is humid as it is, and if it does not go through the dehydration process after the combustion, it is inevitably condensed in the tank after it is adiabatically compressed at high pressure. Condensate, which is not discharged, increases the humidity of the air in the tank. As a result, the same water flows into the pneumatic piping when compressed air is used and is sprayed inside the pneumatic machine, which causes rust and shortens the life of the machine.

Furthermore, the air that passes through the pneumatic piping and is discharged into the atmosphere is characterized in that the internal water is saturated (condensed) more rapidly as the pressure is reduced. Moisture rapidly condensed by rapid thermal expansion is strongly scattered on the surface of the workpiece in the form of a larger droplet, which has a very bad influence on the surface rusting, paintability and corrosion resistance of the workpiece.

Most compressed air tanks therefore have a condensate drain valve at the bottom of the tank and operate it periodically to minimize the moisture content of the stored compressed air in the tank. However, it is inevitable that the appropriate amount of condensate must be placed on the bottom of the tank once the condensate discharge valve is operated.

The above-mentioned document (1) relates to an auto drain device which, as a first invention of the inventor of the present invention, is a registered patent of 2011, which automatically senses a small amount of condensed water at the bottom of a compressed air tank and automatically discharges it repeatedly.

The drainage device of Document (1), which is operated by a method of detecting the water content in the tank rather than a simple timer operation method, is capable of immediately discharging the condensate water once stored at the bottom of the tank regardless of the ambient temperature and humidity condition Lt; / RTI > The immediate discharge of condensate, albeit in small amounts, slightly promotes the humidity reduction of the air in the static tank. However, such frequent emissions do not directly contribute to the growth of the tuberculosis, which is a key factor in the rate of condensation of stagnant air, even if it does provide some help.

The drainage device of document (2) introduces a structure that facilitates the generation of condensed water by generating artificial throttling (monotonic expansion) through a separate expansion valve structure before filling the tank with air. This method is only possible in the compressed air supply process in which air flow is generated, and does not contribute to the acceleration of the trapping speed of the condensed water in the stagnant compressed air in the tank like the document (1).

A similar document (3) which is conceptually different from the present invention but structurally similar to the present invention will be described. Document (3) deals with a silencer disposed inside an air tank, and introduces a structure for slowly expanding air by installing a suction pipe having a plurality of partition walls on an air outflow pipe to suppress sudden expansion of air. Document 3 focuses on the dynamic flow of air passing through the bulkhead, but since the present invention covers the entire space within the tank with substantially no flow, the meaning and role of the bulkhead are different.

(1) Korea Patent No. 10-1023435 Intelligent auto drain system of pneumatic compressed air tank (2) Korean Patent No. 10-0442505 Drain device for a compression tank (3) Korean Patent Registration No. 10-0544381 Noise Reduction Structure of Air Compressed Storage Tank

Compressed air filled in a compressed air tank forms a fine droplet (condensation nucleus) while gradually cooling in a hot state, and the droplet stays in the air for a considerably long time unless there is a special stimulus. On the other hand, a small droplet touching the fuselage side of the tank grows and merges with the condensation nucleus around it, and it becomes a large droplet and flows down to the bottom.

Currently, almost all compressed air tanks are only self-priming at the bottom of the tank as above, or only discharging the condensate flowing down the tank wall. Therefore, there is a disadvantage that the generation rate of the condensed water is slow.

In order to solve the above-mentioned disadvantages, it is an object of the present invention to arrange a plurality of diaphragms organically in a tank to collect the condensed water droplets as much as possible, and to make the condensed water droplets once captured, .

A further technical objective of the present invention in which diaphragms are inserted and disposed is that the reduction in tank volume and the increase in tank weight are insignificant compared to conventional compressed air tanks. In addition, the inflow and outflow characteristics of the air should also be substantially undamaged. It is also a key technical objective of the present invention to implement a multi-stage condensate collection system that extends a compressed air tank having a high condensate discharge performance to the concept of aggregate.

The present invention solves the above-mentioned problems by the following technical means.

First, the bulkhead and the swash plate to be inserted into the tank use a very thin stainless steel plate (SUS PLATE). In order to smoothly flow the collected condensed liquid droplets together with the minute droplets collected without greatly increasing the total weight of the tank, an SUS polished plate having a thickness of 0.5 to 1 mm and mirror-finished to a mirror surface level is suitable. In actual application, the weight increase is very small, about 6kg per 100L tank. The steel mesh filter 33, which is a further component of the present invention, also uses a thin stainless steel material, which is very light in weight per unit surface area, so that condensation can be captured through as large a surface area as possible while suppressing rust by moisture.

In the process of using thin stainless steel plate, it may be difficult to fix firmly when the inner wall of the compressed air tank and the thin plate are vertically abutted. However, according to the present invention, the first and second partition walls 20 and 21 serving as the vertical partition walls are fitted so as to fit along the silhouette of the inner shape of the tank, particularly, the outline of the upper end plate portion So that the horizontal movement of one directional member can be sustained by the vertical compression of another directional member. Therefore, no movement or bending occurs at each joint portion 45, and each member can be spot welded at an appropriate interval.

Meanwhile, since the first and second swash plates 30 and 31, which are horizontally inserted and obliquely disposed, have a relatively small number of joining portions and are formed with through holes, a slight noise or vibration may occur under the condition that air passes quickly. However, since the compressed air tank of the present invention is not an intermediate storage tank aiming at continuous mass use, it is a compressed air tank for a pneumatic device which uses only a small part of the total storage amount and is only partially supplied periodically, This is extremely weak. Thus, as a supply tank for a pneumatic device, noise and vibration become substantially negligible.

Finally, the operation principle of the auto drain device 16, which is an accessory device of the present invention, focuses on the fact that the condensed water flowing through the partition wall and the inclined plate is not electrically nonconductive. Condensate water in the tank is non pure water containing various inorganic ions and electrolytes because the water vapor contained in the ambient air is saturated. Accordingly, when the voltage is applied to the bottom of the tank (condensed water discharge pipe) separated from each other by a certain distance in a state of being disconnected from each other, the condensed water is floated on the floor, A change in the electrical resistance value can be detected.

When the control unit that can open and close the condensate discharge pipe is combined with the electronic drain valve by introducing the level sensor means for converting the electric signal into the condensate water level, the valve is automatically operated to the desired condensate water level, It is possible to discharge the accumulated condensed water.

The present invention can easily and safely be installed in various types of high pressure air tanks regardless of the shape and size, but it can collect moisture of the air retained in the tank in a short time and can easily discharge it. There is an effect that it can be solved only by the structural features of the collecting compartment and the collecting surface.

The present invention provides a large surface to which condensation nuclei can be adhered as much as possible in a state where the air in the compressed air tank is stagnated without flowing out. In addition, in the flow condition in which only air outflow occurs or air flows in and out simultaneously, A large number of local thermal expansion can be naturally induced by a plurality of through holes formed in each of the trapping compartments. At this time, since the condensed water can flow immediately on the vertical surface and the inclined surface at the point of the thermal expansion, the water removal function in the tank is further improved.

Finally, according to the present invention, when two or more compressed air tanks are connected in series, the single air passage becomes longer, so that the compressed air once removed in the previous section can be further effectively removed in the next section . This can be very useful as an air storage tank for intermediate storage in a use environment where a large amount of air inflow and outflow occurs continuously, for example, an air cleaning system of a large building.

FIG. 1 is a schematic view of a main part of a compressed air tank according to the present invention.
FIG. 2 is an exploded perspective view showing the details and assembled state of the first and second diaphragms in the compressed air tank of the present invention. FIG.
3 and 4 are an exploded perspective view and an external perspective view showing an assembled state of the condensed water collection compartment structure disposed inside the body of the compressed air tank of the present invention
5 and 6 are exploded perspective views and an external perspective view of a compressed air tank according to the present invention.
FIG. 7 is a collecting structure mainly showing the condensed water collecting section A in the compressed air tank of the present invention. FIG.
8 is a cross-sectional view of the compressed air tank of the present invention viewed from the outlet side and from the side
FIGS. 9 and 10 are side sectional views and external perspective views showing an air flow and a stepwise condensed water discharge structure of a multi-stage condensed water collecting structure of the concept of an aggregate in which two compressed air tanks are connected.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will be more apparent from the following description taken in conjunction with the accompanying drawings, in which: FIG.

However, in the following specific embodiments, the constituent elements including the specific terminology and the combination structure thereof do not limit the technical ideas encompassed in the present invention.

FIG. 1 is a main part of a compressed air tank according to the present invention. The components of the respective components shown in Fig. 1 and their associated relationships are described in detail with reference to Figs. 2 to 6. Fig.

FIG. 2 is an exploded perspective view showing a detailed shape and an assembled state of the first partition and the second partition in the compressed air tank of the present invention. FIG. The first partition 20 is installed in the cylindrical body 10 in the longitudinal direction to form a single air passage from the air inlet 13 to the air outlet 14.

The second barrier ribs 21 are configured to be fitted to the first barrier ribs 20 in the longitudinal direction. The vertical fitting grooves 40 are formed on both the partition walls so that the lower portion of the vertical fitting groove 40 is separated from the lower end plate 12 of the tank and the upper portion of the vertical fitting groove 40 is fitted with the inner surface shape of the upper end plate 11 of the tank . The first partition wall has no through holes to form one air flow path, but the second partition wall 21 communicates left and right through the right and left through holes 42. Accordingly, the second bank may be formed as a plurality of two or more as necessary. As can be further understood from other drawings, a plurality of right and left through holes 42 or steel mesh filters 33 through which the compressed air passes are formed or attached to the second partition 21, and the air inlet 13 and the air outlet A cut-out portion 44 for air flow may be further formed on the side contacting the outer wall 14.

FIGS. 3 to 4 show a condensed water collecting structure in the compressed air tank according to the present invention, centered on the first and second septa, in detail.

The second partition 21 is formed with a plurality of horizontally inserted grooves 41 so that the first and second swash plates 30 and 31 are inclinedly engaged and the condensed water flows down into the interstices do. At this time, the plurality of horizontal grooves 41 are formed to have a width sufficiently larger than the thickness of each of the inclined plates 30 and 31 so that the inclined plates can be inclined sufficiently to the left and right in a state of being horizontally inserted. The width of the horizontal insertion groove 41 also serves as a drain chink for the condensed water flowing on the second partition wall to flow toward the opposite inclined surface in the assembled state.

5 and 6, the structure of the compressed air tank of the present invention will be described generally.

A top end plate 11 and a bottom end end plate 12 respectively coupled to the upper end and the lower end of the moving body 10 and an air inlet 13 formed at the upper portion of the moving body 10 A condensed water discharge pipe 15 connected to the lower end plate 12 and an inner peripheral surface provided between the first partition 20 and the inner circumferential surface of the moving body 10, And at least one first swash plate 30 or a second swash plate 31 partitioning the first and second swash plates 30 and 31. The left and right through holes 42 or the cut portion 42 through which compressed air passes are formed in the second partition 21 Are formed.

The first and second swash plates 30 and 31 are coupled to the first partition 20 in such a manner that the first and second swash plates 30 and 31 are fitted to the second partition 21 in the transverse direction, 21 are disposed such that an upper edge thereof is in close contact with the upper end plate 11 and a lower end edge is spaced apart from the lower end plate 12. [

The first and second sloping plates 30 and 31 are slidably fitted to the second partition 21 and have a plurality of widths W1 and W2 formed to have widths larger than the thicknesses of the slopes, An insertion groove 41 is further formed.

FIG. 7 is a collecting structure diagram showing the condensed water collecting section A in the compressed air tank of the present invention. FIG.

Referring to FIG. 1, a condensed water collection section A in which the first and second partition walls 20 and 21 and the first and second swash plates 30 and 31 are coupled can be seen.

The first and second swash plates 30 and 31 are arranged to be inclined in at least one direction so that the condensed water collected on the surface flows down and at least one upper and lower through hole 43 through which condensed water and air pass is further formed. .

The condensed water collecting section A formed by collecting the first and second diaphragms 20 and 21 and the first diagonal plate 30 and the second diagonal plate 31 is formed by the adjacent compartments in the left and right through holes 42, (43), and the condensed water collection section (A) is formed in a different volume due to the different inclination of each swash plate. This is intentionally designed to facilitate the adiabatic expansion of the compressed air in each through-hole between adjacent compartments during air flow through the left and right and up and down through holes, thereby further accelerating condensation water droplet accumulation as it accumulates.

The first and second partition walls 20 and 21 and the first and second swash plates 30 and 31 have an intentional drain chink design so that condensed water can flow down into adjacent gaps. For example, since the swash plate is designed to have an exact semicircle in the present invention, the larger the inclination angle, the greater the size of the drainage gap.

Each of the partition walls and each of the inclined plates are coupled to each other by spot welding type joints 45 so that the condensed water can flow down into the adjacent gaps. The number of spot welds is set to the minimum number required and condensed water flows in as many gaps as possible .

8 is a cross-sectional view of the compressed air tank of the present invention viewed from an outlet side and a side surface thereof. In the drawing, the steel mesh filter 33 installed on the air outlet provides a condensed water collecting section in the form of a miniature plate and collects the water that is finally discharged from the outlet side once more. The steel mesh filter is used at a very small ratio in the volume of the entire compressed air tank and when the present invention is used for supplying compressed air to the pneumatic device, the flow rate of air is relatively small, so the pressure in the course of passing through the steel mesh filter The descent is minimal.

The compressed air tank of the aggregate type which is another embodiment of the present invention can be constructed by using the compressed air tank of the present invention. A plurality of compressed air tanks are connected to each other so that the outlet of the previous compressed air tank and the inlet of the subsequent compressed air tank are connected to each other to collect the primary condensate in the previous compressed air tank and then discharge the discharged compressed air again in the compressed air tank, Multiple condensate collection and discharge can be performed by the discharge method.

FIGS. 9 and 10 are side sectional views and external perspective views showing an air flow and a stepwise condensed water discharge structure of a multistage condensed water collecting structure of the concept of an aggregate in which two compressed air tanks are connected.

Referring to FIG. 9, it can be seen that the air introduced through the air inlet slowly flows toward the outlet through the W-shaped flow, and the condensed water is gradually collected. It is preferable that the steel mesh filter 33 is installed only at the last outlet port and that the auto drain device 16 is connected to each of the condensate discharge pipes 15 provided in the lower end plate 21 of each compressed air tank for each stage, , That is, operate at different water level conditions.

When the condensate water level in the compressed air tank becomes high, the amount of change of the electric current flowing through the variable resistor or the voltage variation amount The control unit detects the generation of condensed water, and from this, an open command is issued to the electronic drain valve to automatically discharge the condensed water to the outside. This apparatus is well known in the literature (1) of the present invention. In the present invention, when the initial position of the moisture sensor is adjusted by using the auto drain device as it is, .

For example, in the compressed air tank initially disposed, the detected water level of the condensed water that has been accumulated in the lower end plate 21 is set to be somewhat higher (the reference is relaxed), and the compressed air tank disposed at the end is set to the detected water level of the condensed water Setting it somewhat lower (more strictly) can create a highly efficient condensate collection system and use clean air with high humidity and high humidity, without additional power. However, since this method requires setting the capacity of the entire compressed air tank in accordance with the capacity of the compressor, the size of each tank needs to be considerably smaller than that of a single tank.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

In other words, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Expansion examples may be implemented, but this is also expressly included within the scope of the present invention, expressed in the following claims.

The present invention can be directly reflected in the design by the manufacturer in the production process of the air compression and storage equipment including the compressed air tank and can be easily disassembled and easily mounted if the cap type compressed air tank in which the upper and lower ends are detachable is excellent in marketability . Further, the multi-stage compressed air storage tank system of two or more stages, which is an additional expansion type of the present invention, has a smaller installation area than the dry suction type compressed air supply system which requires a large amount of energy to burn moisture in the air by the combustion dewatering system There is a substitute effect that requires close-up performance at a low energy cost, although it requires a large amount of air.

10:
11: upper end plate
12: Lower end plate
13: Air inlet
14: air outlet
15: Condensate discharge pipe
16: Auto drain device
20: first partition
21: second partition
30: first swash plate
31: 2nd swash plate
32: Horizontal support plate
33: Steel mesh filter
40: longitudinal groove
41: Horizontal fitting groove
42: Right and left holes
43: Upper and lower holes
44: incision
45:
A: Condensate collection block

Claims (6)

delete A body 10 standing upright in a vertical direction;
An upper end plate 11 and a lower end plate 12 respectively coupled to upper and lower ends of the body 10;
An air inlet 13 and an air outlet 14 formed on the upper portion of the body 10;
A condensate discharge pipe (15) connected to the lower end plate (12);
A first partition 20 installed vertically inside the body 10 to form a single air passage from the air inlet 13 to the air outlet 14;
At least one second partition wall (21) fitted to the first partition wall (20) longitudinally;
The first partition wall 20 and the inner peripheral surface of the moving body 10 are coupled to the first partition wall 20 in such a manner as to be fitted in the second partition wall 21 in a transverse direction, And at least one first swash plate (30) or a second swash plate (31) arranged so as to be inclined at least in one direction so as to divide the condensed water collected on the surface and flow downward,
The first and second swash plates 30 and 31 are further formed with at least one vertical hole 43 through which condensed water and air pass,
Wherein the first and second partitions (20, 21) are disposed such that an upper edge thereof is in close contact with the upper end plate (11) and a lower end edge is spaced apart from the lower end plate (12). 3. The method of claim 2,
The first and second sloping plates 30 and 31 are slidably fitted to the second partition 21 and have a plurality of widths W1 and W2 formed to have widths larger than the thicknesses of the slopes, And a fitting groove (41) is further formed. The method of claim 3,
The first and second partition walls 20 and 21 and the first and second swash plates 30 and 31 are coupled to each other by a spot welding type joint portion 45 so that condensed water can flow down into adjacent gaps. And,
A plurality of left and right through holes (42) or steel mesh filters (33) through which compressed air passes are formed in the second partition (21)
The condensed water collecting section A formed by the first partition wall 20 and the second partition wall 21 and the first inclined plate 30 and the second inclined plate 31 is formed by the adjacent compartments, Or communicated with the upper and lower holes (43)
Characterized in that the condensate collection section (A) is formed in a different volume between adjacent compartments for the purpose of thermal expansion of the compressed air. The compressed air tank as claimed in claim 2, wherein the outlet of the previous compressed air tank and the inlet of the subsequent compressed air tank are connected to each other so that the compressed air collected in the previous compressed air tank is discharged to the compressed air tank And collecting and discharging multi-stage condensed water in a manner of collecting and discharging condensed water again in the compressed air tank. The compressed air tank according to claim 5,
Wherein an automatic drain device (16) operating on different moisture sensing standards is coupled to each of the condensed water discharge pipes (15) provided in the lower end plate (21) of the compressed air tank for each stage.

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