JPH06178910A - Compressed air dehumidifier - Google Patents

Abstract

PURPOSE:To provide the device for removing the moisture and humidity in compressed air which is inexpensive and small in size and does not require a running cost. CONSTITUTION:This device is constituted by providing a deflector 7 to which a pressure bearing surface 10 is opposed, in a position proximate to a discharge port 9 of a compressed air introducing path 6, providing an air passage 11 for introducing air outward on the outer periphery of the pressure bearing surface 10 of the deflector, providing a cylindrical body 13 having the inside surfaces disposed to face each other in a position proximate to a terminal discharge port 12 of the air passage, providing an auto drain 22 below the cylindrical body, providing the many air holes 15 on the lower side wall surface of the cylindrical body 13 and providing an air passage 18 for discharging the air past the air holes 15 of the cylindrical body 13 as dry compressed air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing moisture and moisture contained in compressed air (high pressure air) and drying the compressed air, which is installed in the compressed air passage.

[0002]

2. Description of the Related Art Conventionally, the method of removing moisture and moisture of compressed air is to cool the compressed air by using a refrigerant such as CFC gas to condense the water vapor in the compressed air and drop it as water droplets to remove it, followed by drying. It is delivered as air.

[0003]

Since the conventional dehumidifying device for compressed air uses chlorofluorocarbon gas, there is a problem in pollution, and a compressor for cooling the refrigerant such as chlorofluorocarbon gas, a condenser, and heat exchange for cooling the compressed air. It required a device such as a container, and was expensive and large. The problem to be solved by the present invention is to solve these conventional problems,
(EN) It is an object to provide a compressed air dehumidifier that is inexpensive, small, and easily attached on the way of compressed air piping.

[0004]

Means for Solving the Problems The gist of the present invention which has solved the above problems is as follows: 1) A deflector having a pressure receiving surface opposed to a position close to a discharge port of a compressed air introduction path An air passage for guiding air to the outside is provided on the outer circumference of the pressure receiving surface of the counter, a cylinder body with inner wall surfaces facing each other is provided at a position close to the terminal discharge port of the air passage, and a drain is provided below the cylinder body. Also, a compressed air dehumidifying device in which a large number of air holes are provided on the lower side wall surface of the cylindrical body and a passage for discharging the air passing through the air holes of the cylindrical body as dry compressed air is provided 2) Pressure receiving surface of the deflector The compressed air dehumidifying device according to the above 1 is formed by radially providing a large number of air passages, which are provided on the outer periphery and which guide the air outward, in a radial manner. The discharge port of the introduction passage and the pressure receiving surface, and the discharge port of the air passage and the inner peripheral surface of the cylinder are preferably at a right angle to the discharge air, but the angle is not limited to this and may be an angle close to a right angle.

[0005]

In the present invention, the compressed air is ejected from the discharge port of the introduction passage and is deflected by the pressure receiving surface of the deflector at a large angle close to a right angle. When this air flow changes its direction with a small radius of curvature, water vapor / water and air are separated and scattered. The separated and scattered water and air pass through the air passage on the outer periphery and violently collide with the inner wall surface of the cylindrical body from the discharge port, and the air and the water are separated and scattered also here. Moisture and air that have collided twice and separated and scattered flow under the cylinder, and the moisture falls and is trapped in the lower drain. On the other hand, the air passes through the air holes in the lower part of the cylinder, is separated from the water, and is discharged as dry and clean air. Here, in the case where the air passage is formed by arranging a large number of holes having a small passage area in a radial pattern, the total passage area is small, and the air passage is accelerated at a high speed to collide with the inner wall surface of the cylindrical body to more effectively separate water. To do.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a longitudinal sectional view of the embodiment, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a front view of the deflector, and FIG. 4 is a transverse view of the deflector showing another shape of the air passage. It is a side view.

In the figure, 1 is a header having a diameter of about 13 cm with a compressed air introduction passage formed therein, 2 is a compressed air inlet, 3 is a dried compressed air outlet, 4 and 5 are compressed air delivery pipes, and 6 is an introduced pipe. Reference numeral 7 is a deflector, 8 is a widened portion of the introducing passage 6 in the deflector 7, 9 is a discharge port of the introducing passage 6, 10 is a pressure receiving surface, and a discharge port 9
And there is a gap of 3 mm. 11 is an air passage having a diameter of 3 mm, which is radially drilled, 12 is a discharge port of the air passage, 13
Is a cylindrical body having a diameter of 5 to 6 cm and a length of about 10 cm, and 14 is an inner peripheral wall surface of the cylindrical body and has a gap of about 2 mm from the discharge port 12. Further, 15 is an air hole having a diameter of about 2 mm formed in the lower portion of the cylindrical body 13, 16 is a stainless mesh mesh attached to the inner periphery of the lower portion of the cylindrical body 13, 17 is a cylindrical casing, and 18 is the cylindrical body 13.
An air passage formed between the casing 17 and the casing 17, 19 is a donut-shaped fine filter having a size of about 0.3 micron, 2
0 is punching metal, 21 is an exhaust passage, 22 is an auto drain, 23 is a communication pipe to the auto drain 22,
Reference numerals 24, 25, and 26 are threaded portions. The deflector 7 is screwed to the header 1 at the screwing portion 24, the cylinder 13 is screwed to the deflector 7 at the screwing portion 25, and the casing 17 is screwed to the header 1 and the screwing portion 26. There is.

In this embodiment, the compressed air containing water, steam, oil, dust, etc. is transferred from the compressed air delivery pipe 4 to the header 1.
Is sent to the introduction path 6 via the compressed air inlet 2. It is temporarily stored in the widening portion 8 in the introduction path 6 and is jetted at a right angle from the discharge port 9 toward the pressure receiving surface 10 of the deflector 7. The jetted air collides with the pressure receiving surface 10 and is bent at a right angle, and flows into the air passages 11 that are radially provided in large numbers and have a small passage area. When the jetted compressed air is turned at a right angle on the pressure receiving surface 10, the air and the water / vapor are separated at once. The separated air and water flow through the air passage 11 at a high speed, are ejected from the discharge port 12, collide with the inner wall surface of the cylindrical body 13 facing each other with a gap of 2 mm, and are deflected here at a right angle. . At this time, the same phenomenon occurs on the pressure receiving surface 10, air and water are further finely separated and scattered, and the separated and scattered water vapor is condensed to form water droplets by the air flow and its own weight. It falls downward and is accommodated in the auto drain 22 via the communication pipe 23. On the other hand, air is the cylinder 1
Stainless mesh net 1 that is less likely to pass water drops below
6 and the air holes 15 to enter the air passage 18 between the casing 17 and the cylindrical body 13 and the filter 19 removes oil, carbon, dust and residual water vapor, and then the exhaust passage 2
1 through the compressed air outlet 3 of the header 1 to the compressed air delivery pipe 5 as dry and clean compressed air. As a result, 90% or more of water and humidity could be removed, and oil and dust could be almost removed.

The turning device shown in FIG. 4 is the turning device 7 of the above embodiment.
In another example, the air passage 11 of the deflector 7 of this example is opened at the entire outer circumference of the pressure receiving surface 10 so that the air flow uniformly flows along the entire circumference toward the inner wall surface of the cylindrical body 13. This is an example of ejection from the ejection port 12 of the slit.

[0010]

As described above, according to the present invention, 10 to 2
With a small device with a width and length of about 0 cm, and a simple structure with no driving source or moving parts, it is possible to remove moisture and humidity sufficiently to make dry compressed air. No running cost was required and it was easy to use.
Further, since no CFC gas is used, there is no problem in pollution.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a front view showing a deflector of the embodiment.

FIG. 4 is a cross-sectional view showing another example of the turning device of the present embodiment.

[Explanation of symbols]

 1 Header 2 Compressed Air Inlet 3 Compressed Air Outlet 4 Compressed Air Delivery Pipe 5 Compressed Air Delivery Pipe 6 Introducing Path 7 Transforming Device 8 Widening Section 9 Discharge Port 10 Pressure Receiving Surface 11 Air Passage 12 Discharge Port 13 Cylindrical Body 14 Inner Circumferential Wall 15 Air hole 16 Stainless steel mesh 17 Casing 18 Air passage 19 Filter 20 Punching metal 21 Exhaust passage 22 Auto drain 23 Communication pipe 24 Threaded portion 25 Threaded portion 26 Threaded portion

Claims (2)

[Claims] 1. A deflector having pressure receiving surfaces facing each other is provided at a position close to a discharge port of a compressed air introduction path, and an air passage for guiding air outward is provided on an outer circumference of the pressure receiving surface of the deflector. ,
A cylinder with inner wall surfaces facing each other is provided near the end discharge port of the air passage, a drain is provided below the cylinder, and a large number of air holes are provided on the lower side wall surface of the cylinder. A compressed air dehumidifier provided with a passage for discharging air that has passed through an air hole of a body as dry compressed air. 2. The compressed air dehumidifying device according to claim 1, wherein an air passage, which is provided on the outer circumference of the pressure receiving surface of the deflector and which guides air to the outside, is formed by radially providing a large number of holes having a small passage area.