Cooler-dehumidifier-filter 3-in-one apparatus for treating compressed air

A cooler-dehumidifier-filter 3-in-one apparatus for treating compressed air, comprising an air inlet-outlet mechanism with a built-up radiator cisterns connected therebelow, having an air diffusion mechanism and an air filtering mechanism set therein to communicate with the air intake conduit so as to provide initial cooling and filtering effect; an exhausting device being made on the bottom of said air filtering mechanism to produce spiral air flow so as to dehumidfy the compressed air; the dehumidified air being to soar upward to pass through said filtering mechanism and the interlocking holes of the flange of said air diffusion mechanism to further be squeezed and diffused to cool down again; said air current being further to pass through said upwardly disposed filtering cylinder for secondary filtration; a water cooling effect being achieved by means of the arrangement of water inlet and outlet on said radiator cisterns to match the communicating pipe formed by the vertical conduits of said radiator cisterns.

BACKGROUND OF THE INVENTION 
The present invention is related to an integrated apparatus to 
concomitantly cool, dry and filtrate compressed air. 
In industry, when to cool, dry and filtrate compressed air, it is normally 
to induce the compressed air to flow through a cooling apparatus, a drying 
apparatus and a filtering apparatus to let the compressed air be cooled, 
dried and filtrated step by step. Although the compressed air can be well 
treated through said step-by-step operation, said three independent 
systems of apparatus are heavy and require a big space to install, of 
which the assembly is more complicated and the cost is very expensive. 
In view of said problem, a 3-in-one apparatus of the present invention is 
thus created to provide multiple functions to cool, dry, and filtrate 
compressed air concomitantly. 
SUMMARY OF THE INVENTION 
The main object of the present invention is to provide a 
cooler-dehumidifier filter 3-in-one apparatus for treating compressed air 
to achieve an initial cooling and filtering effect by means of an air 
diffusion mechanism and an air filtering mechanism in a radiator cisterns 
assembly; to achieve an air dehumidifying effect by means of a spiral air 
blow formation through a device arranged on the bottom of said filtering 
mechanism; to achieve a secondarily cooling effect by means of the 
arrangement of interlocking holes made on outer flanges of said air 
diffusion mechanism and said air filtering mechanism; and to achieve the 
whole cooling, dehumidifying and filtering process by means of the 
arrangement of a fine filtering cylinder. 
Another object of the present invention is to provide a 
cooler-dehumidifier-filter 3-in-one apparatus for treating compressed air 
wherein said radiator cisterns, air diffusion mechanism and air filtering 
mechanism are built up with respective elements by means of series 
connection such that the size of the apparatus may be flexibly set up 
according to requirements so as to practically provide high performance in 
cooling, dehumidifying and filtering process. 
A yet further object of the present invention is to provide a 
cooler-dehumidifier-filter 3-in-one apparatus for treating compressed air 
wherein said water inlet and said water outlet of said first top radiator 
cistern may be pierced for filling of cooling water through said water 
inlet and for draining of the cooling water through said water outlet via 
the communicating pipe formed by said vertical conduits so as to provide 
water cooling effect.

DETAILED DESCRIPTION 
Referring to FIG. 1, a cooler-dehumidifier-filter 3-in-one apparatus for 
treating compressed air constructed according to the present invention 
includes an air inlet-outlet mechanism 1, an air diffusion mechanism 2, an 
air filtering mechanism 3, an air exhausting device 4, a filter cylinder 
5, and a plurality of radiator cisterns 6. 
The said inlet-outlet mechanism 1 includes an air inlet 7, an air outlet 
15, a L-shaped air intake conduit 8 incorporating said air inlet 7 and 
having its turning portion downwardly disposed at the center, a bolt hole 
9 centrally disposed above said turning portion of said air intake conduit 
8, a stepped collar flange 10 upwardly disposed around said bolt hole 9 
for fixation thereto of said filter cylinder 5 to let the bottom flange of 
said filter cylinder 5 be tightly retained with the inner wall of said 
stepped collar flange 10, wherein an air passage 11 is defined between the 
downward extension of said stepped collar flange 10 and the outer wall of 
said air intake conduit 8, and wherein an inner thread 12 tapped collar 
flange 13 is disposed to surround said stepped collar flange 10 for 
fixation thereto a glass hood 14 by means of screw joint to cover said 
filter cylinder 5, and wherein an air conduit 16 is disposed between said 
collar flange 13 and said stepped collar flange 10 to communicate with 
said air outlet 15 for induction of the exhausted air from said filter 
cylinder 5 to said air outlet 15 for further exhausting. 
The said radiator cisterns 6 comprises a plurality of radiator fins 17. 
Except the bottom radiator cistern 6', each said radiator cistern 6 
includes a central bore hole having a upwardly disposed collar flange 16 
and a downwardly disposed stepped recess 19 such that one radiator cistern 
is connected with another by means of its collar flange connected with the 
collar recess of another radiator cistern letting the central bore hole be 
communicated with one another. Said radiator cisterns 6 also include a 
plurality of vertically disposed coduits 20 around its circumference. When 
said radiator cisterns 6 are connected together, said vertically disposed 
conduits 20 of each radiator cistern are arranged to communicate with the 
vertically disposed conduits 20 of another radiator cistern respectively. 
There are also provided a plurality of water inlet (or water outlet) 21 
horizontally disposed to communicate with respective conduits 20 wherein 
each water inlet (or water outlet) 21 is closed while not in use, and is 
opened while filling or exhaustion of cooling water is required. 
The bottom radiator cisterns 6' is constructed according to the structure 
of other radiator cisterns 6, having an additional drain valve 22 on the 
bottom for automatic drainage of water, wherein one and more pairs of 
diametrically spaced vertical conduits 20 are arranged to communicate with 
respective vertical conduits 20 of said radiator cisterns 6 to 
respectively form a communicating pipe as shown in FIG. 5. When said 
radiator cisterns 6 and 6' are well connected, said air inlet-outlet 
mechanism 1 is firmly attached thereto by means of several fixing rods 23 
through respective holes 24, 25 and 26. While in assembly, one or more 
O-rings are pre-mounted on the upper collar flange 18 of each radiator 
cistern 6 and 6' to prevent from air leakage, a water sealing gland 27 is 
provided to block up the top opening of each vertical conduit 20 of said 
air inlet-outlet mechanism 1, and a ring-shaped washer 28 is provided to 
set on the top opening of each vertical conduit 20 of each said radiator 
cistern 6 and 6' to prevent from water leakage. 
The said air diffusion mechanism 2 is connected to the bottom end of said 
air intake conduit 8 by means of screw joint and set in the central bore 
hole of said radiator cisterns 6, of which the structure, as shown in FIG. 
3, includes a hollow head portion 29, a plurality of air diffusion 
elements 30, a fixing rod 31, and a plurality of circular blocks 33 having 
a radiator flange 32. Said hollow head portion 29 includes a radially 
disposed flange 34 around the center, an upper out-threaded fixing end 35 
and a lower out-threaded fixing end 36 respectively disposed above and 
below said flange 34 for connection by screw joint with said air intake 
conduit 8 and said first circular block 33' respectively. Said lower 
out-threaded fixing end 36 is arranged to provide a slanting inner wall. 
Said air diffusion elements 30 have a hollow structure, comprising a 
reduced upper flange and a reduced inner bottom such that the reduced 
upper flange of one element can be easily connected with the reduced inner 
bottom of another element, wherein said reduced upper flange includes a 
radially disposed plurality of air induction slots 37 communicating with 
the inner wall of said corresponding element at the top end and with the 
outer wall of said corresponding element at the lower end to match the 
enclosed bottom of the bottom element 30' so as to let compressed air be 
induced into the hollow space of said elements 30 and squeezed out of said 
elements 30 through said induction slots 37 to further be radially 
diffused outward. When said elements 30 are connected together, they are 
screwed up with said head portion 29 at the top fixing plate 38 by means 
of said screw rod 31. Said circular blocks 33 include a radiator flange 
32, an outher threaded circular upper end 39 and an inner threaded 
circular lower end 40 to let the outer threaded circular upper end of one 
circular block be screwed up with the inner threaded circular lower end of 
another circular block, while the first top piece of circular block 33' 
comprises an inner threded top and an inner threaded bottom end for easy 
connection with said head portion 29 at the top to let the connected 
elements 30 be disposed inside said circular blocks 33, and the first 
bottom piece of circular block 33" comprises an outer threaded top end and 
an outer threaded bottom end for easy connection with said air filter 
mechanism 3 at the bottom by means of screw joint, wherein said radiator 
flanges 32 include a plurality of circumferentially disposed inerlocking 
holes 41. 
Referring to FIG. 4, the said air filtering mechanism 3 includes an inner 
threaded head portion 42, a filtering cylinder 43, and a plurality of 
circular blocks 33 having a structure same as the said circular blocks of 
said air diffusion mechanism 2, wherein said inner threaded head portion 
42 is screwed up with the bottom end of said air diffusion mechanism 2 at 
the top and connected with said circular blocks 33 at the bottom; said 
filtering cylinder 43 includes a bottom disc 44 to block up its bottom end 
and is connected to said head portion 42 at the bottom by means of said 
screw rod 45 axially penetrating through the central portion of said 
bottom disc 44 so as to let the diffused air from the upper air diffusion 
mechanism 2 be initially filtrated through said filtering cylinder 43. 
There is provided an exhausting device 4 screwed up with the first bottom 
piece of circular block 33 of said air filtering mechanism 3, comprised of 
a annular head portion 46 having a horn-shaped bottom end to define an 
upwardly expanded central hole 47 for setting therein of a cone block 49 
having spiral groove 48 on its outer wall, such that the upper air current 
from said filtering mechanism 3 is exhausted through said exhausting 
device 4 to form spiral air flow for drying process. Said exhausting 
device 4 also includes a plurality of piercing holes 50 on its horn-shaped 
bottom end for the exhausted air to upwardly penetrate therethrough. 
Referring to the illustration of the operation of the preferred embodiment 
as shown in FIG. 5, the hot and moisture contained compressed air 
exhausted from air compressor is induced through said air inlet 7, said 
air intake conduit 8 into said air diffusion mechanism 2. Because the 
bottom end of the series of elements 30 is enclosed, the induced air 
current is squeezed to diffuse outward through said induction slots 37 to 
let the compressed air be initially cooled down. The diffused air is 
further blowing downward through the central hollow space of the series of 
circular blocks 33. While passing through said filtering cylinder 43 of 
said filtering mechanism 3, the air current is initially filtrated. The 
filtrated air is further moving downward to pass through said exhausting 
device to form into a spiral air flow to blow upon the inner wall of said 
radiator cisterns 6. While blowing upon the inner wall of said radiator 
cisterns 6, the air is thus dehumidified, and the moisture separated from 
air current is accumulated in the central space of the bottom radiator 
cistern 6'. After a reasonable amount of moisture is accumulated, it will 
be automatically drained away from said drain valve 22. The dehumidified 
air is further soaring upward. When the soaring air passes through said 
filtering mechanism 3 and the interlocking holes 41 of the flange of said 
air diffusion mechanism 3, it is squeezed and diffused to cool down again. 
When the air continues to soar to pass through said upwardly disposed 
filtering cylinder 5, it is filtrated again. The secondarily filtrated air 
is further exhausted through said air outlet 15 to complete the whole 
process. 
In addition to above-described process, said water inlet 21 and said water 
outlet 21' of said first top radiator cistern 6 may be pierced for filling 
of cooling water through said water inlet 21 and draining of the cooling 
water through said water outlet 21' via the communicating pipe formed by 
said vertical conduits 20 so as to provide better cooling effect. The 
cooling water may also help to let the moisture in the compressed air be 
condensed.