Compressed Air Condensing Equipment

Abstract

To provide a compressed air condenser in which a plurality of condensing units are connected to each other, the configuration is simplified, the number of parts is reduced, and the size and weight are reduced, and the manufacturing process is facilitated and reduced in cost, and the condensing action and adiabatic expansion action of the condensing units are improved. [Solution] The problems are solved by connecting multiple hollow condensation units 54, sequentially moving compressed air from the upstream condensation unit 54 to the downstream condensation unit 54 to dehumidify it, being a compressed air condensation device that can be supplied to an air tool downstream, configuring the condensation units 54 with an inner and outer double pipe structure, forming multiple air vents 60 on the circumferential surface of the inner ventilation pipe 55, enabling compressed air to be sprayed out of the ventilation pipe 55 from the air vents 60, and enabling the compressed air to be adiabatically expanded.

Description

[Technical field]

[0001] The present invention relates to a compressed air condensation device in which a plurality of condensation units are connected to simplify the configuration and reduce the number of parts, thereby making the device smaller, lighter, easier to manufacture, and less expensive, while also improving the condensation action and adiabatic expansion action of the condensation units. [Background technology]

[0002] The compressed air discharged from an air compressor contains a mixture of condensed water and oil. If this compressed air is supplied to an air tool such as an air screwdriver or impact wrench, the inside of the air duct or the components inside the air tool may rust, causing a decrease in functionality and leading to malfunctions. Therefore, an air dryer is installed in the compressed air supply pipe to remove moisture and supply dehumidified and dried compressed air to the air tool.

[0003] For example, there is a system in which an upper cover is attached to the top of a hollow cylinder, a hollow cylindrical partition pipe is attached inside the hollow cylinder, and a number of roughly conical partition structures are stacked vertically inside the partition pipe, which are connected to an air guide via a long bolt. A recessed space and a through hole are formed in the upper part of each partition structure, and compressed air is introduced into the hollow cylinder from the upper cover, moved from the lower partition structure to the upper partition structure, and sprayed from the through hole into the upper recessed space, causing the compressed air to adiabatically expand and removing moisture (see, for example, Patent Document 1).

[0004] However, in the above-mentioned device, a partition pipe is placed inside a hollow cylinder, and multiple irregularly shaped partition structures are stacked and arranged inside this partition pipe, with small hole-like through holes formed in each partition structure, resulting in a large number of parts and complex and difficult manufacturing since the partition structures require the formation of recessed spaces and small hole-like through holes. Furthermore, since the compressed air is introduced into the hollow cylinder and then moved into the partition pipe or partition structure, the hollow cylinder and partition pipe become large in diameter and large in size, and since the partition structures are fixed with through bolts, the number of partition structures is limited by the length of the through bolts, which limits the condensation capacity of the compressed air and makes it difficult to sufficiently remove moisture.

[0005] To solve these problems, there is a gas-liquid separation device that is inserted into a compressed air supply pipeline and has a cylindrical container connected to a lid, a cylindrical partition body and a body portion disposed within the partition body, a plurality of flange portions provided on the periphery of the body portion, and a gas flow control small hole portion communicating with a negative pressure hollow chamber in one of the flange portions, so that compressed air introduced into the body portion is moved from the control small hole portion to the negative pressure hollow chamber, thereby separating the gas and liquid (see, for example, Patent Document 2).

[0006] However, the gas-liquid separator has a complex structure and is difficult to manufacture. Moreover, a single or multiple control holes have a low gas-liquid separation efficiency, and the compressed air cannot be sufficiently dehumidified and dried.

[0007] Therefore, the applicant has developed and already proposed a compressed air condensation device in which one or more condensation units are placed in the path of compressed air movement, the condensation units having an impingement plate against which the compressed air collides, a narrow passage from which the compressed air is ejected, and the compressed air ejected into the condensation tube is forced into a closed compression passage and the pushed back compressed air is caused to collide with the other side of the impingement plate, the compressed air is repeatedly condensed and adiabatically expanded by the impingement plate, the narrow passage, the compression passage, and the other side of the impingement plate, and after gas-liquid separation, the compressed air moves to an outlet pipe and is introduced into an adjacent condensation unit downstream, thereby efficiently dehumidifying and drying the compressed air (for example, see Patent Document 3).

[0008] However, in this previously proposed compressed air condensation device, when the compressed air is introduced, it is collided with an impact plate, and then moved to an annular passage around the outer periphery and sprayed into the condensation tube. This means that the condensation of the compressed air by the impact is not sufficiently effective, and furthermore, the condensation of the compressed air when the pushed back compressed air is made to collide with the other side of the impact plate does not have the expected effect, resulting in a problem that a sufficient gas-liquid separation effect cannot be obtained.

[0009] In order to solve this problem, the applicant has made further improvements and has developed and already proposed a compressed air condensation device in which a vent plate with many vent holes and an impingement plate are placed close to each other on the upstream side of each condensation unit constituting a condenser tube, and compressed air is condensed by impinging it against the vent plate, and then ejected from the many vent holes for precise adiabatic expansion, thereby improving the dehumidifying or drying effect of the compressed air.

[0010] However, this previously proposed compressed air condensation device has a problem in that the configuration of the condensation pipes and each condensation unit is complicated, and the arrangement of the ventilating plates and impingement plates is complicated, making it difficult to manufacture and expensive. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Japanese Patent Application Publication No. 10-235132 [Patent Document 2] Patent No. 5467180 [Patent Document 3] JP 2020-151650 A Summary of the Invention [Problem to be solved by the invention]

[0012] The present invention aims to solve these problems and provide a compressed air condensation device in which multiple condensation units are connected, the configuration is simplified, and the number of parts is reduced, thereby making the device smaller, lighter, easier to manufacture, and less expensive, while also improving the condensation action and adiabatic expansion action of the condensation units. [Means for solving the problem]

[0013] The invention of claim 1 is a compressed air condensing device in which a plurality of hollow condensing units are connected, compressed air is moved sequentially from an upstream condensing unit to a downstream condensing unit to be dehumidified, and the dehumidified air can be supplied to an air tool downstream, The condensation unit is constructed with an inner and outer double pipe structure, with a plurality of vent holes formed on the peripheral surface of the inner vent pipe, which are configured so that compressed air can be sprayed out of the vent pipe from the vent holes and can expand adiabatically. The outer diameter of the vent pipe is formed to be approximately half the outer diameter of the condensation unit to increase the spray speed of the compressed air and cause it to collide with the inner surface of the outer condensation unit with force, enhancing the condensation action, and making the condensation unit smaller, lighter, easier to manufacture, and less expensive. The invention of claim 2 is A protective tube is arranged outside a number of condensation units so as to be able to surround them, and air can be drawn in from one end of the protective tube. The drawn in air is moved inside the protective tube to introduce outside air by the so-called chimney effect of the condensation units so as to cool the condensation units, and the condensation units are arranged so as to be able to be exhausted to the outside of the protective tube after being cooled, and the outside air is drawn in by the chimney effect of the protective tube to cool the condensation units, thereby obtaining a stable condensation action. The invention of claim 3 is as follows: A number of tubular, long-bodied condensation units are arranged adjacent to each other in an upright position inside a protective tube, and the compressed air inside the condensation units is arranged so that it can move in one direction. The multiple condensation units are housed compactly inside the protective tube, making the protective tube small and lightweight, while also achieving smooth and rational condensation and adiabatic expansion actions within the condensation units.

[0014] The invention of claim 4 is as follows: The lower ends of adjacent condensation units are connected via a roughly U-shaped connecting pipe, and an air dryer equipped with an auto-drain is placed facing downwards in the middle of the connecting pipe. This is surrounded by a stand, its support frame, and a perforated plate. The so-called chimney effect of the protective tube is utilized to introduce air into the protective tube, which then comes into contact with the condensation units to cool them, thereby achieving stable condensation and dehumidification effects by the condensation units. The invention of claim 5 is One or more collision plates against which compressed air can collide are provided inside the ventilation pipe, and a plurality of nozzles are formed in the collision plates so that the compressed air can be condensed through the collision plates. The compressed air is caused to collide with the collision plates and condensed, thereby dehumidifying the compressed air. The invention of claim 6 relates to the One end of the trachea is fixed to the upstream end of the condensing unit, and the other end of the vent pipe is closed and positioned within the condensing unit so as to provide a stable support for the vent pipe within the condensing unit. Effect of the Invention

[0015] The invention of claim 1 is as follows: The condensation unit is constructed with an inner and outer double pipe structure, with a plurality of vent holes formed in the peripheral surface of the inner vent pipe, which are configured so that compressed air can be sprayed out of the vent pipe from the vent holes and the compressed air can be adiabatically expanded. In addition, the outer diameter of the vent pipe is formed to be approximately half the outer diameter of the condensation unit. This increases the spray speed of the compressed air and causes it to collide with the inner surface of the outer condensation unit with force, enhancing the condensation action, and also makes it possible to make the condensation unit smaller, lighter, easier to manufacture, and less expensive. The invention of claim 2 is A protective cylinder is disposed outside a plurality of condensation units so as to be able to surround them, and one end of the protective cylinder is provided so that air can be drawn in from the protective cylinder, and the drawn in air is moved inside the protective cylinder to introduce outside air by the so-called chimney effect of the condensation units so that the condensation units can be cooled, and after the condensation units are cooled, the protective cylinder is provided so that the outside air can be introduced by the chimney effect of the protective cylinder to cool the condensation units, and a stable condensation action can be obtained. The invention of claim 3 is as follows: Multiple tubular, long-bodied condensation units are arranged adjacent to each other in an upright position inside the protective tube, and the compressed air inside the condensation units is arranged so that it can move in one direction.This allows the multiple condensation units to be housed compactly inside the protective tube, making the protective tube smaller and lighter, and achieving smooth and rational condensation and adiabatic expansion actions within the condensation units.

[0016] The invention of claim 4 is as follows: The lower ends of adjacent condensation units are connected via a roughly U-shaped connecting pipe, and an air dryer equipped with an auto-drain is placed facing downwards in the middle of the connecting pipe, which is surrounded by a stand, its support frame, and a perforated plate.This allows the so-called chimney effect of the protective tube to be utilized to introduce air into the protective tube, which then comes into contact with the condensation units to cool them, thereby achieving stable condensation and dehumidification effects by the condensation units. The invention of claim 5 is One or more collision plates against which compressed air can collide are provided inside the ventilation pipe, and multiple nozzles are formed in the collision plates so that the compressed air can be condensed through the collision plates.The compressed air is condensed by colliding with the collision plates, thereby making it possible to dehumidify the compressed air. The invention of claim 6 relates to the Since one end of the air pipe is fixed to the upstream end of the condensing unit and the other end of the vent pipe is closed and disposed within the condensing unit, the vent pipe can be stably supported within the condensing unit. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is an explanatory diagram showing the installation and use of condensation tubes in a first basic embodiment of the present invention, in which the condensation tubes are arranged vertically. [Diagram 2] FIG. 2 is an enlarged cross-sectional view showing a main part of FIG. [Diagram 3] 3 is an enlarged cross-sectional view showing a main part of FIG. 2. [Figure 4] FIG. 2 is an enlarged cross-sectional view showing a condensation unit applied to the basic embodiment of the present invention. [Diagram 5]FIG. 5 is a plan view of FIG.

[0018] [Figure 6] FIG. 5 is a bottom view of FIG. [Figure 7] FIG. 4 is an enlarged cross-sectional view taken along line AA in FIG. [Figure 8] FIG. 11 is an enlarged cross-sectional view showing a main portion of a second basic embodiment of the present invention, in which the condensation tube and the protective cylinder are arranged at a slight incline from the horizontal direction. [Figure 9] FIG. 9 is an enlarged cross-sectional view of a main part of FIG. 8. [Figure 10] FIG. 13 is an enlarged cross-sectional view showing a main portion of a third basic embodiment of the present invention, in which a joint pipe is disposed in the middle of the condensation unit, and a plurality of ventilation plates are disposed within the joint pipe.

[0019] [Figure 11] FIG. 11 is a perspective view showing an installation state of a protective tube applied to the fourth basic embodiment of the present invention. [Figure 12] In the plan view of the inside of the protective cylinder in FIG. 11, four tubular condensation tubes are housed inside the protective cylinder. [Figure 13] FIG. 13 is a cross-sectional view taken along line BB in FIG. [Figure 14] 13 is a cross-sectional view taken along line CC in FIG. 12. [Figure 15] FIG. 11 is a vertical cross-sectional view of a condensation unit housed in a protective cylinder according to the fourth basic embodiment of the present invention. [Figure 16] FIG. 4 is an enlarged front view showing a ventilation plate disposed in a condensation pipe.

[0020] [Figure 17] FIG. 13 is a perspective view showing an installation state of a protective tube applied to the fifth basic embodiment of the present invention. [Figure 18] FIG. 17 is a slightly enlarged plan view of the inside of the protective cylinder, showing six tubular condensation tubes housed inside the protective cylinder. [Figure 19] FIG. 19 is a cross-sectional view taken along line DD in FIG. [Figure 20] 19 is a cross-sectional view taken along line EE in FIG. 18. [Figure 21]FIG. 2 is a vertical cross-sectional view of a condensation unit applied to an embodiment of the present invention.

[0021] [Figure 22] FIG. 22 is a cross-sectional view showing an application of the condensation unit shown in FIG. 21. [Diagram 23] FIG. 23 is an enlarged view of the collision plate applied to the condensation unit shown in FIG. 22. [Figure 24] FIG. 13 is a vertical sectional view of a condensation unit applied to the sixth basic embodiment of the present invention. [Diagram 25] 25 is an enlarged cross-sectional view showing a main part of FIG. 24. [Figure 26] FIG. 13 is a vertical sectional view of a condensation unit showing an application of the sixth basic embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] The present invention will now be described with reference to the first embodiment shown in the drawings. basic To explain the configuration, in Figures 1 to 7, reference numeral 1 denotes an air compressor installed in a factory, which produces high-temperature, high-pressure compressed air that is sent from an air conduit 3 to a joint 4 and can then be sent from an outlet pipe 4a to a condenser pipe 5.

[0023] The condensation tube 5 is connected to a plurality of condensation units 6 , basic In this embodiment, five condensation units 6 are arranged vertically connected to each other, and the longitudinal cross section of the condensation unit 6 is formed into a hollow ellipsoid, which is composed of a pair of condensation housings 7, 8 and a pair of connecting pipes 9, 10 connected to both sides of the long axis. The condensation housings 7, 8 are formed into a roughly bowl shape from thick metal plates, such as stainless steel or aluminum plates, with the edges of the openings on the larger diameter sides facing each other and joined together, and the joints are welded together, for example, by TIG welding, etc. In the figure, 6a is the welded part of the opening edge.

[0024] The condensation housings 7, 8 have connecting holes 11, 12 of different diameters formed in the cup bottoms, one end of a connecting pipe 9 is inserted into the connecting hole 11 on the larger diameter side, and one end of a connecting pipe 10 is inserted into the connecting hole 12 on the smaller diameter side, and the inside and outside positions of these insertion parts are welded, for example, by TIG welding, etc. In the figure, 9a, 9b and 10a, 10b are welds at the inside and outside positions.

[0025] The connecting pipes 9 and 10 are formed by cutting metal pipes, such as stainless steel pipes or aluminum pipes, of different diameters to a predetermined length, with the connecting pipe 9 being slightly shorter than the connecting pipe 10. A female screw portion 13 is formed on the inner surface of the connecting pipe 9, and an outlet pipe 4a of a joint 4 is screwed into the female screw portion 13 of the connecting pipe 9 connected to the uppermost condensing unit 6. A tapered thread portion 14 is formed on the outer periphery of the tip portion of the connecting pipe 10, and the tapered thread portion 14 is screwed into the female thread portion 13 of the connecting pipe 9 connected to the condensing unit 6 located immediately below.

[0026] A pair of collision plates 15, 16 are disposed opposite each other on the opening sides of the condensation housings 7, 8, and a large number of vent holes 17, 18 of the same diameter are disposed in an annular shape on the collision plates 15, 16. The collision plates 15, 16 are formed into disk shapes of the same diameter from thick metal plates such as stainless steel or aluminum, and their outer peripheries are fixed to the inner surfaces of the condensation housings 7, 8 by welding, for example, by TIG welding. 15a, 16a are the welded parts.

[0027] In this case, instead of arranging the collision plates 15, 16 so that the air vents 17, 18 face each other, it is desirable to rotate one of the collision plates 15, 16 by a certain angle and arrange the installation positions (phase) of the air vents 17, 18 so that, for example, the compressed air ejected from the air vent 17 of the collision plate 15 collides between the air vents 18, 18 of the collision plate 16, thereby improving the collision accuracy of the compressed air and its condensation effect.

[0028] At that time, the compressed air introduced into the upper connecting pipe 9 in each condensation unit 6 is guided to the concave curved surface in the condensation housing 7, moves inward, collides with the collision plate 15 arranged in front of the direction of movement, and is condensed. A part of the air is then liquefied by being forced into the ventilation holes 17 before and after this, and is ejected from the other side of the ventilation plate 15, where it undergoes adiabatic expansion and is partially liquefied. In this case, the liquefied liquid droplet is mixed with the compressed air and blown away, moving downward.

[0029] The compressed air that is ejected to the other side of the vent plate 15 collides with the opposing vent plate 16 and is condensed, a part of which liquefies, and is forced into the vent holes 18 before and after this and ejected to the other side of the vent plate 16, where it undergoes adiabatic expansion and is partially liquefied. At this time, the liquefied liquid mixes with the compressed air and is blown away, moving downward.

[0030] In this way, the compressed air ejected from the vent hole 18 is guided to the concave curved surface within the condensation housing 8 and sent to the connecting pipe 10, so that it can be introduced into the condensation unit 6 directly below. In this case, the tapered thread portion 14 of the connecting pipe 10 is screwed into the female thread portion 13 of the connecting pipe 9 connected to the condensing unit 6 directly below, thereby reducing the difference in pipe diameter between the connecting pipes 9, 10, suppressing fluctuations in the compressed air moving inside them and reducing pressure loss to ensure stable movement.

[0031] A large-diameter, long protective tube 19 which also serves as a cooling tube is provided outside the condenser tube 5 . A support tube 20 is attached to the lower end of the protective tube 19 . A flange 20 a at the lower end of the support tube 20 is fixed to a stationary base plate 21 . The protective tube 19 is composed of a metal tube, such as a stainless steel tube or an aluminum tube, with a length of approximately 80 cm and an inner diameter of approximately 10 cm, capable of accommodating multiple condensation units 6, and its lower part is firmly supported by a support tube 20, with its upper end opening directly below the joint 4.

[0032] A large-diameter air intake hole 22 is formed in the center of the base plate 21, and the air intake hole 22 is capable of communicating with the air around the lower part of the base plate 21. This air is taken in from below the base plate 21 by the so-called chimney effect of the protective tube 19, and is introduced into the protective tube 19 and moved upward, thereby making it possible to cool the condenser tube 5 arranged inside.

[0033] The connecting pipe 10 of the condensing unit 6 at the lowest position of the condensing pipe 5 is disposed directly above the air intake hole 22, and the tapered screw portion 14 of the connecting pipe 10 is screwed into the upper end of the air conduit 23. The air conduit 23 is then piped below the air intake hole 22, and a suitable position of the air conduit 23 is connected to a supply pipe (not shown) of an air tool 24 such as an air driver or impact wrench used in the factory.

[0034] The compressed air condensation device thus constructed First Basics The configuration requires the manufacture and assembly of a condensation tube 5 and a protective tube 19. Of these, the manufacture of the condensation tube 5 requires the manufacture of one or more condensation units 6 depending on the flow rate of the compressed air to be dehumidified or dried.

[0035] The condensation unit 6 comprises a pair of condensation housings 7, 8, which are made by forming a thick (3 mm in this embodiment) stainless steel plate into a roughly bowl shape, for example by pressing or spinning, with connecting holes 11, 12 of different diameters formed in the bottom of the bowl.

[0036] By forming the vertical section of the middle part of the condensation unit 6 into a substantially hollow ellipsoid in this way, the cross-sectional area inside the tube is enlarged compared to the straight-tube condensation unit 6, and the area of ​​the collision plates 15, 16 arranged inside and the number of vent holes 17, 18 are increased, improving the impact effect of the compressed air and the adiabatic expansion effect due to the ejection of the vent holes, and promoting the dehumidification or drying of the compressed air. Also, by increasing the outer surface area, the condensation unit 6 comes into contact with the air inside the protective tube 19, promoting cooling, and enhancing the dehumidification or drying of the compressed air by the condensation tube 5.

[0037] On the other hand, connecting pipes 9, 10 are prepared by cutting metal pipes of different diameters, such as stainless steel pipes or aluminum pipes, to predetermined lengths, with connecting pipe 9 being slightly shorter than connecting pipe 10, a female thread portion 13 being formed on the inner surface of connecting pipe 9, and a tapered thread portion 14 being formed on the outer periphery of the tip of connecting pipe 10.

[0038] The collision plates 15, 16 to be placed in the condensation unit 6 are made by punching out a thick (3 mm in the basic form) metal plate, such as a stainless steel plate or an aluminum plate, into a disk of the same diameter, for example by press working, and then arranging a number of air vents 17, 18 in an annular shape on the plate surface. Then, collision plates 15, 16 having vent holes 17, 18 formed therein are arranged on the inner surfaces of the large-diameter opening sides of the condensation housings 7, 8, and the peripheral surfaces of the joints are welded 15a, 16a by, for example, TIG welding or the like.

[0039] Thereafter, one end of the connecting pipe 9 is inserted into the connecting hole 11 of the condensation housing 7, and the inner and outer positions of the joint are welded together at 9a and 9b by, for example, TIG welding or the like to connect the two. One end of a connecting pipe 10 is inserted into a connecting hole 12 of the condensation housing 8, and the inner and outer positions of the joint are welded together at 10a, 10b by, for example, TIG welding or the like to connect the two.

[0040] In this manner, the open end on the large diameter side of the condensation housing 7 to which the collision plate 15 is welded and the connecting pipe 9 is connected is faced to the open end on the large diameter side of the condensation housing 8 to which the collision plate 16 is welded and the connecting pipe 10 is connected, and the joint is connected by welding 6a, for example, by TIG welding or the like. After one condensing unit 6 is manufactured in this manner, another condensing unit 6 is manufactured in the same manner, thereby manufacturing a plurality of condensing units 6.

[0041] Next, prepare the required number of condensation units 6 according to the flow rate of the compressed air to be dehumidified or dried, and assemble them. During this assembly, the connecting pipes 9 and 10 of each condensation unit 6 are arranged in the same manner, for example, the connecting pipe 9 is arranged on one side and the connecting pipe 10 is arranged on the other side.

[0042] Then, the tapered thread portion 14 of the connecting pipe 10 is screwed into the female thread portion 13 of the connecting pipe 9 of the adjacent downstream condensing unit 6 to connect the two condensing units 6,6. In a similar manner, the tapered thread portion 14 of the connecting pipe 10 of the condensation unit 6 is screwed into the female thread portion 13 of the connecting pipe 9 of the adjacent downstream condensation unit 6 to connect the condensation units 6 one after another. First Basics In this embodiment, the assembly of the condensation pipe 5 is completed when five condensation units 6 are connected.

[0043] Thus, the present invention First basic form The condensation device can be manufactured by molding the condensation housings 7, 8, forming the connecting holes 11, 12, cutting the connecting pipes 9, 10 to the specified length and forming the threaded portions 13, 14, punching out the collision plates 15, 16 and forming the vent holes 17, 18, and assembling them by welding. Since it does not require the manufacture and attachment of collision plates or the molding of complex partition walls and assembly with outlet pipes as in the conventional method, the number of parts is small and the structure inside the condensation unit 6 is simple, and it can be manufactured and assembled easily and inexpensively.

[0044] After assembling the condensation tube 5 in this manner, a straight protective tube 19 of a predetermined length is prepared and erected directly below the joint 4. At this time, a support tube 20 is attached to the lower end of the protective tube 19, and a flange 20a at the lower end of the support tube 20 is fixed to a stationary base plate 21 to support the protective tube 19. Next, the condensation tube 5 is inserted through the air intake hole 22 of the base plate 21, and then moved upward to screw the female threaded portion 13 of the connecting tube 9 connected to the condensation unit 6 at the top position of the condensation tube 5 into the outlet tube 4a of the joint 4 to connect them.

[0045] On the other hand, the upper end of the air conduit 23 is screwed into the tapered thread portion 14 of the connecting pipe 10 of the downstream condensation unit 6 at the lowest position of the condensation pipe 5 located directly above the air intake hole 22, that is, into the downstream condensation unit 6. An air supply pipe (not shown) for various air tools 24 is connected to the lower part of the air conduit 23, that is, to an appropriate position on the downstream side.

[0046] In this case, the condenser tube 5 and the protective tube 19 are both about 80 cm long, relatively compact, and not very heavy, so that they can be easily assembled and installed. Moreover, since the condensation pipe 5 and the protective tube 19 are arranged vertically, the installation area is compact, making it suitable for installation both indoors and outdoors in a factory.

[0047] The present invention thus installed First basic form In this condensation device, the condensation pipe 5 is disposed inside the protective cylinder 19, so that when the condensation device is installed outdoors, the condensation pipe 5 can be protected from wind, rain and sunlight. In such a condensing device, compressed air generated by driving an air compressor 1 is introduced from an air conduit 3 through a joint 4, an outlet pipe 4a, and a connecting pipe 9 at the upper end of a condensing pipe 5.

[0048] The compressed air moves to the condensation unit 6 at the top of the condensation tube 5, is guided to the curved surface of the condensation housing 7 of the unit 6, collides with the collision plate 15 and condenses, and a part of it is liquefied and cooled. After that, it is forced into the air vent 17 and sprayed out to the other side of the collision plate 15, where it undergoes adiabatic expansion and is partially liquefied and cooled.

[0049] Thereafter, the compressed air collides with the opposing collision plate 16 and condenses, a part of which is liquefied and cooled, and then is forced into the ventilation hole 18 and ejected to the other side of the ventilation plate 16, where it undergoes adiabatic expansion and is partially liquefied and cooled.

[0050] In this case, instead of arranging the collision plates 15, 16 so that the air vents 17, 18 are opposed to each other on the same axis, if one of the collision plates 15, 16 is rotated by a certain angle and the mounting positions (phase) of the air holes 17, 18 are shifted, the compressed air ejected from the air hole 17 of the collision plate 15, for example, can be made to collide reliably between the air holes 18, 18 of the collision plate 16, improving the collision or condensation effect of the compressed air.

[0051] Thereafter, the compressed air is guided along the curved surface of the condensation housing 8 to the connecting pipe 10, and then moves through the connecting pipe 9 connected to the connecting pipe 10 to the adjacent condensation unit 6 on the downstream side. As described above, the compressed air is guided to the curved surface of the condensation housing 7 and moves to the condensation unit 6, where it collides with the collision plate 15 and condenses, and part of it is liquefied and cooled. Thereafter, the compressed air is forced through the air vent 17 and ejected to the other side of the collision plate 15, where it undergoes adiabatic expansion and part of it is liquefied and cooled.

[0052] The compressed air then collides with the opposing collision plate 16 and condenses, part of which is liquefied and cooled, and is then forced into the ventilation hole 17 and ejected to the other side of the ventilation plate 16, where it undergoes adiabatic expansion and part of which is liquefied and cooled. The compressed air then travels from the condensing unit 6 to the connecting pipe 10, and through the connecting pipe 9 connected to the connecting pipe 10, to the adjacent condensing unit 6 on the downstream side.

[0053] Thereafter, the compressed air moves successively to the downstream condensation units 6, where it is gradually dehumidified or dried and cooled by repeatedly undergoing condensation and adiabatic expansion.

[0054] The compressed air thus transferred to the condensation unit 6 at the lowest position of the condensation tube 5 is sufficiently dehumidified or dried and cooled, then transferred to the air duct 23 connected to the connecting tube 10 of the condensation unit 6, and supplied to air supply pipes (not shown) communicating with each air tool 24 connected to appropriate positions of the air duct 23, thereby preventing deterioration of the function or failure of the air tools 24.

[0055] Meanwhile, before and after the compressed air is introduced into the condenser tube 5 or condenser unit 6, the tunnel effect of the protective tube 19 works, and air is taken into the protective tube 19 from the air intake hole 22, and this air moves up and comes into contact with the surfaces of the condenser tube 5 or condenser unit 6 and the connecting tubes 9 and 10, cooling them. Therefore, the condensation effect and the adiabatic expansion effect of the compressed air by the condenser tube 5 are enhanced.

[0056] The air that has been heat exchanged in this way is discharged from the upper end of the protective tube 19. At this time, the condensation housings 7, 8 are formed in a cup shape, and a larger contact area is secured compared to a straight tube, so that the cooling effect is promoted accordingly, and the dehumidification or drying of the compressed air is promoted.

[0057] Figure 8 to 20, Figures 24 to 26 Other aspects of the present invention basic The above-mentioned basic The same reference numerals are used for the components corresponding to the embodiment. Second Basic Form This shows Basic form In this embodiment, instead of installing the condensation tube 5 vertically, it is arranged at a slight incline (θ) from the horizontal, and the protective tube 19 is also arranged in the same axial direction, that is, at a slight incline (θ) from the horizontal, which makes it easier to install the condensation tube 5 while ensuring the chimney effect of the protective tube 19 and maintaining the cooling effect of the condensation tube 5 by the protective tube 19. This basic form The manufacture, arrangement, and installation of the condensation pipe 5, condensation unit 6, and connecting pipes 8 and 9, as well as their functions and effects, are as follows: The basic form mentioned above is substantially identical to

[0058] FIG. 10 shows the third embodiment of the present invention. basic The form is shown. basic The configuration is such that a joint pipe 25 made of metal, for example a stainless steel pipe or an aluminum pipe, is inserted between the condensation housings 7, 8, the joint between them is welded, and a plurality of vent plates 26-29 are welded to the inside of the joint pipe 25 and arranged at equal intervals. A plurality of vent holes 30-33 having the same diameter as the vent holes 17, 18 are arranged in a ring shape and out of phase with these vent plates 26-29, thereby configuring the condensation unit 6 to be long.

[0059] With this configuration, multiple vent plates 26-29 can be easily attached to the joint pipe 25 compared to a configuration in which a single vent plate 15, 16 is attached to the bowl-shaped condensation housings 7, 8, and the condensation unit 6 can be manufactured rationally and at low cost. In addition, the compressed air is efficiently collided with the vent plates 26-29, improving the condensation effect, and the adiabatic expansion effect caused by the air being sprayed from the vent holes 30-33 is improved, promoting the condensation effect of the compressed air and improving the dehumidifying and drying effect.

[0060] 11 to 16 show a fourth basic embodiment of the present invention. This basic embodiment is a novel condensation unit 34 and a plurality of these condensation units 34 arranged in one direction in a compact manner. protection tube It shows 35. The condensation unit 34 is configured as a long tube having a length of approximately 998 mm by joining multiple similar joint pipes 36-38 made of metal pipes such as stainless steel pipes or aluminum pipes, each having an inner diameter of 70.3 mm, a length of 270 mm, and a wall thickness of 3 mm, with condensation housings 7, 8 joined to both ends and connecting pipes 9, 10 joined to both ends. Ventilation plates 15, 16 are provided at the ends of the joint pipes 36, 38, and a number of ventilation holes 17 are arranged annularly on the inner surfaces of these ventilation plates 15, 16.

[0061] The above protection tube Reference numeral 35 is configured in the shape of a rectangular column that produces the same chimney effect as described above, and is capable of housing a plurality of condensation units 34 in an upright position inside. Perforated plates 39, 40 are provided around the upper and lower ends of the column to allow air to flow in and out. Air is drawn in through the lower perforated plate 39, introduced into the column and moved upward, and can be discharged through the upper perforated plate 40. A flange 41 is protruding from the lower end so that the column can be erected on a base 42 such as a floor. In the figure, 43 is protection tube A cover plate is provided at the upper end of 35 , and 44 is a baffle plate with a V-shaped cross section provided at the top inside the condenser 3 .

[0062] The above protection tube A stand 45 is provided at the bottom inside 35, and a plurality of condensing units 34 are placed and housed on said stand 45 in an upright position. protection tube An inlet 46 communicating with the joint 4 and an outlet 47 communicating with the air tool 24 are provided at the upper end of a pair of condensation units 34, 34 on one side of 35, and a connecting pipe 9 is connected to the inlet 46, and a connecting pipe 10 is connected to the outlet 47.

[0063] That is, each condensation unit 34 is connected so that compressed air can move in one direction from connecting pipe 9 to connecting pipe 10, and both ends of approximately U-shaped connecting pipes 48, 49 arranged at the lower ends of condensation units 34, 34 are screwed to connecting pipe 10 and connecting pipe 9, and both ends of inverted U-shaped connecting pipe 50 arranged at the upper end are screwed to connecting pipe 9 and connecting pipe 10. Drain discharge holes (not shown) are formed in the middle of the communication pipes 48, 49, and air dryers 66, 67 equipped with auto-drains incorporating floats (not shown) are attached facing downward to the drain discharge holes.

[0064] When condensed water accumulates in the communicating pipes 48, 49, it is forcefully introduced into the air dryers 66, 67 through the drain discharge hole, and when a predetermined amount of this condensed water, i.e., drain, accumulates in the auto drain, the accumulation surface is detected by a float, which activates the float and opens the opening / closing valve in the discharge pipe (not shown), automatically discharging the drain to the outside. The air dryers 66, 67 are surrounded by the stand 45, its supporting frame and the perforated plate 39, and are protected from the intrusion of animals and foreign objects.

[0065] 17 to 20 show the fifth embodiment of the present invention. basic The form is shown. basic The shape is a fourth protective tube 19. basic Six condensation units 34 are arranged inside thereof, and communication pipes 48 , 49 , 50 to 53 are connected to the upper and lower ends thereof, enabling compressed air to move from an inlet 46 to an outlet 47 .

[0066] This basic form is different from the fourth basic form: protection tube The number of condensation units 34 arranged within 35 is increased, and the condensation units 34 are made correspondingly longer, thereby improving the condensation effect and enhancing the cooling and dehumidification or drying of the compressed air. Drain discharge holes (not shown) are formed in the middle of the approximately U-shaped communicating pipes 48, 49, and air dryers 68, 69 equipped with auto-drains incorporating floats (not shown) are attached facing downward to the drain discharge holes.

[0067] The air dryers 68, 69 are configured similarly to the air dryers 66, 67, and their operation is substantially the same as that of the air dryers 66, 67. The air dryers 68, 69 are surrounded by a stand 45, its support frame and a perforated plate 39, and are protected from the intrusion of animals and foreign objects. 。

[0068] FIG. 21 shows a first embodiment of the present invention, which is the same as the fourth and fifth basic embodiments. protection tube 35 shows a different configuration with a condensing unit placed inside. In this embodiment, instead of providing a vent plate with an air hole formed inside the joint pipes 31-33, the condensation unit 54 has a long vent pipe 55 with an outer diameter approximately just under half that of the joint pipes 31-33 arranged inside the joint pipes 31-33, one end of which is screwed into the female threaded portion 13 of the connecting pipe 9, and the other end of which is arranged inside the condensation housing 8. An impact plate 56 is attached to this end to block it, and the compressed air sent into the vent pipe 9 is caused to impact with the impact plate 56 to enable condensation. In this way, the outer diameter of the ventilation pipe 50 is formed to be approximately half the outer diameter of the condensation unit 54 composed of the joint pipes 31 to 33, thereby increasing the ejection speed of the compressed air and causing it to collide with the inner surface of the outer condensation unit with force, thereby enhancing the condensation action, and also making the condensation unit 54 smaller, lighter, easier to manufacture, and less expensive.

[0069] The vent pipe 55 is provided with vent sections 57-59 at a plurality of locations on its outer circumferential surface, and a number of vent holes 60 are formed in the vent sections 57-59. Compressed air is ejected from the vent holes 60 to the outside of the vent pipe 55, enabling adiabatic expansion. In the drawing, 61 and 62 are ventilated holding plates for supporting the vent pipe 50 on the joint pipes 31 and 32.

[0070] In the condensation unit 54 of this embodiment, the vent pipe 55 is formed to have a smaller diameter than the joint pipes 31 to 33, and the compressed air introduced into the vent pipe 55 is collided with the collision plate 56 to be condensed, and then ejected from the vent hole 60 to be adiabatically expanded, thereby improving the condensation action of the compressed air and enhancing the dehumidification effect. In this case, since the blow-out sections 57-59 are limited to a plurality of locations on the outer peripheral surface of the vent pipe 55 to form the vent holes 60, the blow-out speed of the compressed air from the vent holes 60 can be kept constant, thereby obtaining the desired adiabatic expansion effect.

[0071] The compressed air thus cooled and dehumidified moves between the joint pipes 31 to 33 and the vent pipe 55 and is sent to the connecting pipe 10. Therefore, the condensation unit 54 of this embodiment can be used in the same manner as the fourth and fifth basic embodiments. protection tube If it is installed inside the refrigerant cooler 35, the dehumidifying or cooling effect will be further improved. Air is ejected from the vent holes and adiabatically expanded to promote dehumidification and cooling of the compressed air inside and outside the vent pipe 55.

[0072] FIG. 22 and FIG. 23 are the same as those described above. 1 In this modified embodiment, a collision plate 63 is provided downstream of the blowing portions 57 to 59 of the vent pipe 55, and a plurality of blowing holes 64 are formed in the collision plate 63. The compressed air moving inside the ventilation pipe 55 collides with each collision plate 63 to be condensed, and the compressed air is ejected from each ventilation hole 60 to be adiabatically expanded.

[0073] That is, this application form is 1 As in the embodiment of the present invention, the compressed air is collided with each collision plate to condense, while the compressed air is ejected from the air vents to cause adiabatic expansion, thereby promoting dehumidification and cooling of the compressed air inside and outside the air pipe 55.

[0074] 24 to 26 show the seventh embodiment of the present invention. basic This shows the shape. basic The form is the third Basic form Instead of disposing a single joint pipe 25 made of metal, such as a stainless steel pipe or an aluminum pipe, between the condensation housings 7 and 8 as shown in FIG. 2, and attaching a plurality of ventilation plates 26-29 having ventilation holes 30-33 to the joint pipe 25 by TIG welding, as shown in FIG. 24 and FIG. 25, a plurality of joint pipes 25a-25m made of aluminum pipes are disposed between the condensation housings 7 and 8, and flanges f1-f are formed on the ends of the pipes. 13 The bolts 63 or screws are inserted into the bolt holes or screw holes (not shown), and nuts 64 are screwed in to tighten the connection.

[0075] The joint pipes 25a-25m are short and compact, and aluminum ventilation plates 26-29... having ventilation holes 30-33... formed therein are fixed to their middle parts by adhesive 65, and the joint pipes 25a-25m with the ventilation plates 26-29 attached thereto are individually connected. The vent plates 26-29 are formed by, for example, pressing and punching an aluminum plate, and the vent holes 30-33... are punched therein by a press. An adhesive is applied to the peripheral surfaces of the vent plates 26-29, and the plates are bonded 65 to the joint pipes 25a-25m.

[0076] The joint pipes 25a-25m are made of aluminum pipes, which are lighter and less expensive than stainless steel pipes, and are easy to manufacture. The ventilation plates 26-29 are made of aluminum plates, which are lighter and less expensive than stainless steel plates, and the formation of the ventilation holes 30-33 and the attachment to the joint pipes 25a-25m can be performed by simple adhesion 65 instead of special welding, which can be done easily and inexpensively with less effort.

[0077] In addition, The seventh basic form As an application form of the above, instead of attaching a single vent plate to each of the joint pipes 25a-25m as in Figure 24 and connecting the joint pipes 25a-25m individually, if a plurality of joint pipes 25a-25d are connected to one joint pipe as in Figure 26, the number of joint pipes 25a-25d connected can be reduced, the formation of flanges can be omitted and the configuration can be simplified. In addition, the effort required for connection can be reduced, and the condensation unit 6 can be rationally configured and easily and inexpensively manufactured. [Industrial Applicability]

[0078] The compressed air condensation device of the present invention connects multiple condensation units, simplifying the configuration and reducing the number of parts, thereby making it smaller, lighter, easier to manufacture, and less expensive, while also improving the condensation and adiabatic expansion effects of the condensation units. [Explanation of symbols]

[0079] 6,29,49 ,54 Condensing Unit 7,8 Condensation housing 9,10 Connecting pipe 11,12 Connection hole 13 Female thread 14 Male thread (tapered thread) 15,16 Collision plate

[0080] 17,18 Ventilation holes 19,35 Protective tube 25, 36, 37, 38 Joint pipe 21,42 PCB 24 Air Tools 31~33 Ventilation holes 39 Perforated plate

[0081] 45 Mount 66~69 Air dryer 55 Vent pipe 56 Collision plate 60 Ventilation holes 63 Collision plate 64 spout

Claims

1. A compressed air condensation device in which a plurality of hollow condensation units are connected together, and compressed air is moved sequentially from an upstream condensation unit to a downstream condensation unit to dehumidify it and supply it to an air tool downstream, characterized in that the condensation units are configured with an inner and outer double pipe structure, a plurality of air vent holes are formed on the peripheral surface of an inner vent pipe, the air vent holes are configured to allow compressed air to be sprayed to the outside of the vent pipe, the compressed air is configured to be adiabatically expandable, and the outer diameter of the vent pipe is formed to be approximately 1 / 2 of the outer diameter of the condensation units.

2. A compressed air condensation device as described in claim 1, in which a protective tube is arranged outside the multiple condensation units so as to be able to surround them, air is allowed to be drawn in from one end of the protective tube, the drawn in air is moved inside the protective tube so as to introduce outside air by the so-called chimney effect of the condensation units so as to cool the condensation units, and the condensation units are allowed to be exhausted to the outside of the protective tube after being cooled.

3. A compressed air condensation device as described in claim 1, in which a plurality of tubular, long-bodied condensation units are arranged adjacent to each other in an upright position within a protective tube, and the compressed air within the condensation units is arranged so as to be movable in one direction.

4. A compressed air condensation device as described in claim 1, in which the lower ends of adjacent condensation units are connected via an approximately U-shaped connecting pipe, an air dryer equipped with an auto-drain is arranged facing downward in the middle of the connecting pipe, and the surrounding area is surrounded by a stand, its support frame, and a perforated plate.

5. 2. A compressed air condensing device according to claim 1, further comprising one or more collision plates within said vent pipe against which the compressed air can impinge, said collision plates being formed with a plurality of nozzles through which the compressed air can be condensed.

6. 2. A compressed air condensing apparatus according to claim 1, wherein one end of said vent pipe is fixed to the upstream end of said condensing unit, and the other end of said vent pipe is closed and disposed within said condensing unit.

Images