MOISTURE REMOVER IN COMPRESSED AIR SYSTEM

Abstract: A moisture remover in compressed air system comprises a cylindrical body (1) and a cap (2). The cylindrical body (1) has a cylindrical tube comprising a cooling chamber (7) and filter nets (9, 9', 9''). The cap (2) is screwed to the cylindrical body (1) having screw holes (4 and 5) which are employed to fix nipples (6 and 6'). Each end of the screw holes (4 and 5) communicates with the inner space (10) of the cooling chamber (7) and with the outer space (12) of the cylindrical tube (8) respectively. The cap (2) has a screw hole formed centrally in the interior thereof, the hole being screwed to a bolt (7') formed centrally in the chamber (7). Cooling holes (11, 11' and 11'') forming same sizes and shapes are placed in the cooling chamber (7), a screw (7a) in the cooling chamber being coupled to a screw (8a) in the tube (8). Filter nets (9, 9' and 9'') are placed under the chamber (7). The cooling holes (11, 11' and 11'') are tapered ones. The distance between the nets (9 and 9'') is very short and the middle net (9') is spaced a predetermined distance from the net (9'').

Description: DISCRIPTION MOISTURE REMOVER IN COMPRESSED AIR SYSTEM TECHNICAL FIELD This invention relates to a moisture remover, which is to be installed in compressed air line of various air machin¬ ery and tools for industry, enabling an effective removal of the moisture from the compressed air by cooling the moisture which is produced by lowering the pressure of the compressed air. BACKGROUND ART The compressed air produced from a compressor has such contaminants as water, oxidized oil, carbon and the like. They have caused an extreme lowering of efficiency of air machinery and tools or oxidization of the parts thereof. Consequently, such air machinery and tools employing the compressed air have often been out of order. Therefore, when supplied to such machinery and tools, the compressed air should be kept in a moisture free state as much as possible for the machinery and tools to be used for a long time without trouble. At present, two kinds of moisture removers such as a filter exchange type and an air dryer are being used. The filter exchange type tends to be uneconomical and ineffective since an expensive filter should be exchanged periodically and the moisture is removed only at the rate of from 40 to 60%. It s also cumbersome to use the air dryer since chemicals consumed should be exchanged regularly. Therefore, it is an object of the present invention to provide an improved moisture remover to avoid the above difficulties and then to use various air machinery and tools economically and effectively for a long time without trouble. Embodiments of the invention are illustrated in the accompanying drawings. DISCLOSURE OF THE INVENTION moisture remover in compressed air system comprises a cylindrical body and a cap. The cylindrical body has a cylindrical tube therein and the tube comprises a cooling chamber and filter nets. The cap is screwed to the cylindrical body and has screw holes whcih are employed to fix nipples. Each end of the screw holes communicates with the inner space of the cooling chamber and with the outer space of the cylindrical tube respectively. The cap has a screw hole formed centrally in the interior thereof. The hole is screwed to a bolt formed centrally in the chamber. Cooling holes are formed in the cooling chamber. A screw formed in the cooling chamber is coupled to a screw in the tube. Filter nets are placed under the chamber. The cooling holes are tapered holes. The distance between the lower net and the upper net is very short, and the middle net is spaced a predetermined distance from the lower net. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a water remover in accordance with the present invention. Figure 2 is a vertical sectional view of a water- remover in accordance with the present invention. Figure 3 is a sectional view, partially broken for showing the construction of a cap and a cooling chamber. Figure 4 is a sectional view of A portion in Figure 2 enlarged for clarity. DETAILED DESCRIPION OF THE ILLUSTRATIVE EMBODIMENTS In the drawings, a cylindrical body 1 has a drain hole formed centrally at the boottom thereof. An auto-drain 14 i coupled to the body 1 by a nipple 15. A screw 1' is formed around the outer periphery of the upper part of the body 1 and then is screwed to a screw 2' in the interior of a cap 2 Screw holes 4 and 5 which are employed to screw nipples 6 an 6' are formed on both sides of the cap 2. The end of one screw hole 4 is bent by 90 so as to be coupled to the inner space 10 of a cooling chamber 7 and the 0 end of the other serew hole 5 is also bent by 90 so as to communicate with the outer space 12 of a cylindrical tube 8. The cooling chamber 7 is secured to the cap 2 by screwing a bolt 7 1 on the upper part of the cooling chamber 7 to a screw hole formed centrally in the lower part of the interior of the cap 2. The cooling chamber 7 has a space 10 on its upper part and has a closed bottom. Cooling holes 11, 11' and 11" forming same sizes and shapes are bored through the periphery of the lower part of the cooling chamber 7. The cooling holes 11, ll 1 and 11" are tapered holes so that the inlets are smaller than the outlets thereof. A screw 7a formed at the lower part of a hanger 7b which is located on the upper part of the cooling chamber 7 is screwed to a screw 8a which is located in the interior of the upper part of the cylindri¬ cal tube 8. Filter nets 9, 9' and 9" is placed under the cooling chamber 7 in the interior of the tube 8. The lower- positioned net 9" is hanging on a hanger 8 1 which is placed in the interior of the tube 8, the middle-positioned net 9' is spaced a predetermined distance from the net 9" and the net 9 is placed over the net 9' . Numbers 13 and 13' denote packings. The water remover constructed according to the present invention is to be installed in the center of the compressed air line by employing nipples 6 and 6' which are fixed to the screw holes 4 and 5. The compressed air produced from the compressor passes through the nipple 6 and the screw hole 4 into the inner space of the cylindrical tube 8. Since the inlets of the cooling holes 11, ll 1 and 11" are narrow and the outlets thereof are wide, the pressure of the compressed air is high at the inlets and low at the outlets and thus the temperature drops suddenly at the outlets of the cooling holes by adiabatic expansion. As an example, if the pressure of the compressed air produced from a compressor is 7Kg/Cm 2, the temperature of the compressed air passing through the moisture remover o e according to this invention is about 45C, compared with 60C when not passing through the remover in accordance with this invention. The moisture in the compressed air drops into the inner space of the tube 8 through the holes and then is condensed when passing through the nets 9, 9' and 9". The condensed dew drops downwardly into the bottom of the tube 8 and then into the auto-drain 14. The dew condensed on the inner wall of the tube 8 trickles into said auto-drain 14. Furthermore, impurities such as oxidized oil, carbon and the like in the compressed air are filtered through the nets. A user may continue use of the said remover only by eliminating the water in the auto-drain manually after usage for some time. Therefore, one can use air machinery and tools at a lower cost by employing the remover according to the present invention.

Claims: CLAIMS 1. A moisture remover in compressed air system which comprises: a cylindrical body 1 having a cylindrical tube therein, said cylindrical tube having a cooling chamber 7 and filter nets 9, 9' and 9"; a cap 2 coupled to said cylindrical body 1 by screws l 1 and 2 1 , said cap having screw holes 4 and 5 which are employed to fix nipples 6 and 6' both sides thereto, the end of said screw hole 4 being in communication with the inner space 10 of said cooling chamber 7, the end of the other screw hole 5 being in communication with the outer space 12 of said cylindrical tube 8; said cap having a screw hole formed centrally in the interior thereof, said screw hole being screwed to a bolt 7 1 formed centrally in the said cooling chamber 7; said cooling chamber having cooling holes 11, 11* and 11" forming same sizes and shapes, a screw 7a of said cooling chamber being coupled to a screw 8a of said tube 8; filter nets 9, 9" and 9" being placed under said cooling chamber 7. 2. The invention as defined in claim 1 wherein said peripheral holes 11, 11' and 11" are tapered holes so that their inlets are smaller than their outlets. 3. The invention as defined in claim 1 wherein the distance from the said upper net 9 to the said lower net 9" is very short and the said middle net 9 • is spaced a pre¬ determined distance from the said lower net 9".

Inventors: SUNG KI JANG, SUNG, KI, JANG
Applicants: SUNG KI JANG, SUNG, KI, JANG
Application year: 1987
Main classification: B01D53
IPC codes: B01D45, B01D46, B01D51, B01D53