CA1299979C - Hydraulic air filter washer - Google Patents
Hydraulic air filter washerInfo
- Publication number
- CA1299979C CA1299979C CA000553843A CA553843A CA1299979C CA 1299979 C CA1299979 C CA 1299979C CA 000553843 A CA000553843 A CA 000553843A CA 553843 A CA553843 A CA 553843A CA 1299979 C CA1299979 C CA 1299979C
- Authority
- CA
- Canada
- Prior art keywords
- spray nozzle
- nozzle carrier
- turntable
- housing
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
An apparatus for cleaning cylindrical air filters having a spray nozzle carrier vertically movable within a housing. The spray nozzle carrier has a depending cylinder.
A fixed hollow piston extends through the bottom of the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carried. A first fluid supply line extends through the housing. A first fluid supply line extends through the housing. The fluid supply line has a first end connected to the hollow piston and a second end adapted for connection to a pressurized fluid source, whereby the piston is supplied with a source of fluids for the purpose of raising the spray nozzle carrier. A valve is provided on the first fluid supply line. The valve has a first position and a second position. In the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the spray nozzle carrier. Valve switching means are secured to the side of the housing. The valve is switched to the second position once the spray nozzle carrier has reached a preset height. A
cylindrical filter is positioned on a turntable. A trip mechanism is provided to incrementally rotate the turntable as the spray nozzle carrier is vertically raised and lowered.
An apparatus for cleaning cylindrical air filters having a spray nozzle carrier vertically movable within a housing. The spray nozzle carrier has a depending cylinder.
A fixed hollow piston extends through the bottom of the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carried. A first fluid supply line extends through the housing. A first fluid supply line extends through the housing. The fluid supply line has a first end connected to the hollow piston and a second end adapted for connection to a pressurized fluid source, whereby the piston is supplied with a source of fluids for the purpose of raising the spray nozzle carrier. A valve is provided on the first fluid supply line. The valve has a first position and a second position. In the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the spray nozzle carrier. Valve switching means are secured to the side of the housing. The valve is switched to the second position once the spray nozzle carrier has reached a preset height. A
cylindrical filter is positioned on a turntable. A trip mechanism is provided to incrementally rotate the turntable as the spray nozzle carrier is vertically raised and lowered.
Description
lZ99979 The present invent;orl relates to an Apparatll~ for cleanirlg cylindrical air filters.
RACKGROUND OF T~E INVENTION
Cylindrical air filters are used on mo-tor driven equipment to remove small contaminants from combustion air. They can come in either a tublllar form or clc)sed at one end. Once the filtering media becomes impregnated with contaminants the useful ~iEe of the filter is completed. The cost of some cylindrical filters is high enough that it warrants washing SllCh ~ilters in order to permit them to be reused.
There are two problems with existing apparatus which are used to wash cylindrical air filters. The first problem relates to complex drive mechanisms used in such equipment which add to the cost of manufacture and require additional ongoing maintenance. The second problem relates to the overall efficiency of the washing apparatus. Generally such apparatus posi-tion the cylindrical air filter on a turntable and rotate the turntable continuously while the filter is subjected to the spray from spray jets. This method of washing does not facilitate the penetration of the spray deep into the pleats and folds of the filter where contaminants accumulate.
SUMMARY OF THE INVENTION
What is requires is an apparatus for cleaning cylindrical air filters which is more effective in directing the spray into pleats and folds where contaminants accumulate and yet has a relatively simple drive mechanism~
According to the presen-t inverltion there is -\
lZ9997~
provided an apparatus for clearlirlg cylind-rical air filters which i9 comprised of a housing havirlg a bottom, sides, and an opening whereby a cylindrical filter is inserted into the housing. A turntable is transversely secured be-tween the sides of the housing, whereby a cylindrical air filter is placed upon the turrltable for rotation within the housing. The turntable has at least one opening therethrough. A spray nozzle carrier is movable secured to the sides of the housing, such tha-t the spray nozzle carrier is vertically movable. The spray nozzle carrier has a first fluid conduit positioned adjacent the turntable. The first fluid conduit has at least one spray nozzle focused radially inwardly toward the turntable. The spray nozzle carrier has a second fluid conduit extending through -the opening in the turntable. The second fluid conduit has at least one spray nozzle focused radially outwardly in rela-tion to the turntable. The spray nozzle carrier has a centrally disposed cylinder. A fixed hollow piston extends through the bottom fo the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carrier. A first fluid supply line extends through the housing. The fluid supply line has a first end connected to the hollow piston and a second end adapted for connectiorl to a pressurized fluid source, whereby the position is supplied with a source of fluids for the purpose of raising the spray nozzle carrier. A
valve is provided on the first fluid supply line. The valve has a first position and a second position. In the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the lZ99979 spray nozzle carrier. Valve switching means are ~ecured to the side of the housing. The valve is switched to the second position once the spray nozzle carrier has reached a preset height. A second fluid supply line extends through the housirlg. The fluid supply line has a first end connected to the fluid condult~ of the carrier assembly and a second elld adapted Eor conrlectiorl to a pressurized fluid source. The fluid conduits are supplied Wittl a source of fluids under pressl1re which are expelled through the spray nozzles for the purpose of cleaning a cylindrical filter positioned on the turntable. Means are provided for incrementally rotating the turntable as the spray nozzle carrier is vertically raised and lowered.
The apparatus for washing cylindrical air fil-ters as described has spray nozzles which directs a cleaning spray vertically up and down a pleat or fold in an air filter. Once the up and down movement of the spray nozzle carrier is completed the turntable is incrementally rotated in order that the spray nozzle is directed at the next pleat or fold in -the air filter.
This movement provides a much superior result to apparatus in which the air filter is continuously rotated. In addition, the movement is water powered.
This greatly simplifies the design by eliminating as many as two electric drive motors with interrelated components.
~RIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings wherein:
FIGURE 1 is a front elevation view of an apparatus lZ99979 for washing cylindrical air filters constructed in accordance with the teachings of the invention.
FIGURE 2 is a longitudinal section view taken along section lines II-II of FIGURE l.
FIGURE 3 is a front elevation view, partially cut away, of the filter washing apparatuC illu~trated in FIGURE
1.
FIGURE 4 is a transverse section view taken along section lines IV-IV of FIGURE 1.
FIGURE 5 is a transverse section view taken along section lines V-V of FIGURE 1.
FIGURE 6 is a detailed longitudinal section view taken along section lines VI-VI of FIGURE 2.
FIGURE 7 is a detailed longitudinal section view taken along section lines VII-VII of FIGURE 2.
The preferred embodiment, an apparatus for cleaning cylindrical air filters, will now be described with reference to FIGURE 1 through 7.
Referring to FIGURE l, the apparatus for cleaning cylindrical air filters consists of a housing 1 in the form of a leak-proof cabinet manufactured of a suitable rut-proof material. Housing 1 has a bottom 50 and sides 52. An opening, in the form of a sealed door 2 is provided in order a cylindrical air filter 45 can be inserted into housing 1. Door 2 has an observation window 3. Referring to FIGURE 2, a turntable 14 is transversely secured between sides 52 of housing 1.
Cylindrical air filter (not shown) is placed upon turntable 14 which rotates within housing 1. Turntable : 14 is secured to stationary table 16 and is rotatably mounted on bearings 15. Stationary table 16 rests upon transverse rods 17 which extend between sides 52 of ~ ' .
housing 1. Turrltable 14 has at lea~t one opening 54 therethrough. A spray nozzle carrier 20 i8 movably secured to sides 52 of housing 1 by guide rods 27, such that spray nozzle carrier 20 is vertically movable.
Spray nozzle carrier 20 has a bearing 22 which bears against guide rods 27. Spray nozzle carrier 20 has a pair of firs-t fluid conduits 18 positioned adjacent turntable 14. First fluid conduits 18 each have a spray nozzle 19 focused radially inwardly toward turntable 14.
Spray nozzle carrier 20 has a second fluid conduit 35, extending through opening 54 in turntable 14. Second fluid conduit 35 has a pair of spray nozzles 36 focused radially ou-twardly in relation to turntable 14. Second fluid conduit 35 surrounds az central cylinder 34, the function of which will hereinafter be explained. The relationship between second fluid conduit 35 and cylinder 34 is illustrated in FIGURE 7. A fixed hollow piston 32 extends through bottom 50 of housing 1 and is received in cylinder 34 of spray nozzle carrier 20.
Hollow piston 32 is located on plate 39 which is supported by carrier rods 38 fixed to sides 52 of housing 1. A first fluid supply line 58, consisting of sections 5, 11, 12 and 13, extends through housing 1.
First fluid supply line 58 has a first end at which section 13 is connected to hollow piston 32 and a second end at which section 5 is adapted for connection to a pressurized fluid source. Two valves are positioned on first fluid supply line 58, a shut off valve 9 and a main gate valve 10. Main gate valve 10 has a first position and a second position. In the first position an inflow of fluids through hollow piston 32 into cylinder 34 occurs to raise spray nozzle carrier 20 and in the second position an outflow of fluids from cylinder 34 occurs to lower spray nozzle carrier 20.
Referring to FIGURE 7, the flow between hollow piston 32 ~, ~299979 and cylinder 34 passes -thrnllgh ven-t 33. RefHrr;rlg to FIGURE 6, valve 10 consists of a ho]low body 4n having a first opening 41 which is adapted for connection to a pressurized fluid source, a second openiTIy 42 which is adapted for connection by section l2 to section 13 at second end of first fluid supply line 58 and a th:ird opening 43 which iS adapted for connection via a drainage valve 44 to a drain 4. A piston 60 ;s movable within hollow body 40 between a first position and a second position. In the first position piston 60 obstructs the third opening 43 thereby allowing fluids to flow in first opening 41 from the pressurized fluid source and out of second opening 42 through sections 12 and 13 of first fluid supply line 58 and hollow piston 15 32 to cylinder 34. In the second position piston 60 obstructs first opening 41 thereby allowing fluids to flow in second opening 42 from cylinder 34 via hollow piston 32 and sections 12 and 13 of first fluid supply line 58 and then out of third opening 43 through drainage value 44 to drain 4. Valve switching means secured to side 52 of housing 1 are used to switch valve 10 from the first position to the second position once spray nozzle carrier 20 has reached a present height.
The valve switching means consist of a rod 24 having a 25 f irst end 62 connected to piston 60 of valve 10 and a second end 64. A first contact 23 is positioned adjacent second end 64 of rod 24. The height of first contact 23 is adjustable. I~pon spray nozzle carrier 20 reaching the preset height of first contact 23, bearing 30 22 of spray nozzle carrier 20 engages first contact 23 to physically raise rod 24. This switches piston 60 into the second position. A magnet 26 is secured to housing 1. Magnet 26 magnetically holds a contact plate 25 of a magnetic material at second end 64 of rod 24, to temporarily maintain rod 24 in a raised position thereby R~
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maintaining piston 60 in the sec:ona position. A secoT-d contact 3~ is secured to rod 24 such that upon spray nozzle carrier 20 being lowered -to a prede-termined level, bearing 22 of spray nozzle carrier 20 engages second contact 37 to lower rod 24 -thereby swit(-hing piston 60 into the first position. A secorlcl fluid supply line 66 conslstinc3 of sec-tions 6, 2fl, and 30 extends through housing 1. Second Eluid supply line 66 has section 28 and 30 at a first end. Section 30 is connected at connection 31 to fluid conduit 35 of carrier assembly 20~ Flow through section 30 is controlled by valve 8. Section 28 is connected at connection 29 to fluid condui-t 18 of carrier assembly 20. Flow through section 28 is controlled by valve 7.
Section 6, at a second end of second fluid flow line 66, is adapted for connection to a pressurized fluid source.
Means are provided for incrementally rotating turntable 14 as spray nozzle carrier 20 is vertically raised and lowered. This consists of a plurality of tee-th 68 secured to turntable 14 and a lever 21 secured to spray nozzle carrier 20.
The use and operation of the apparatus for washing cyIindrical air filters will now be described with reference to FIGURES 1 through 7. Cylindrical air filter 45 is inserted into housing 1 through door 2, and placed upon turntable 14. A "Y" shaped splitter attachment is used to connect the municipal water service to both first fluid supply line 58 and second fluid supply line 66. The pressure provided by the municipal water service is sufficient to operate -the entire apparatus. Water flowing into second fluid supply line 66 provides fluids to first fluid conduit 18 and second fluid conduit 35. Water flows through conduit 18 to spray nozzles 19. The spray from spray ~299979 nozzles 19 is d;rected ;nwardly toward cy]irldr;cal air filter 45 which is positloned on turn-table 14. Water flows throuyh second fluid conduit 35 to spray noæY.les 36. The spray from spray nozzles 36 is directed outwardly from opening 54 in turntable 14 toward cylindrical air filter. As turntable 14 does not cont;nuously rotate, the spray is directed ;nto the pleats or folds of cylindrical air filter where contaminants accumulate. The water flowing through first fluid supply line 58 is directed into valve 10.
Water enters openirlg 41 and is directed out opening 42, via sections 12 and 13, to hollow piston 32. The flow of water through hollow piston 32 serves to fill cylinder 34 thereby raising spray nozzle carrier 20. As spray nozzles lg and 36 are secured to spray nozzle carrier 20, the spray nozzles travel vertically along the pleat or fold of cylindrical air filter as spray nozzle carrier 20 is raised. Spray nozzle 20 continues to rise vertically until bearing 22 of spray nozzle carrier 20 engages first contact 23 to physically raise rod 24. First contact 23 would normally be preset at a height which corresponds with the height of cylindrical air filter being cleaned. From the previous description of interrelationship of the movement of rod 24 with valve 10, it will be apparent that as rod 24 is raised piston 60 is also raised into the second position. In the second position piston 60 obstructs first opening 41 thereby preventing the further entry of water from first fluid supply line 58. The removal of the water pressure from the parts of the system downstream of valve 10 results in water flowing back through second opening 42.
The water flowing back into valve 10 through second opening 42 has a drainage path through third opening 43.
Third opening 43 communicates with valve 44 which drains the water into a drain 4 at bottom 50 of housirlg 1.
r~ .
lZ99979 g Magnet 26 magnetically holds corltact plate 25 at seconc~
end 64 of rod 24, to temporarily maintain rod 24 in a raised position thereby maintairlirlg pistorl 60 in -the second position while such drainage ocurs. As water drains from cylinder 34, spray nozzle carrier 20 slowly is lowered. The speed of descent is controlled by the setting of valve 44. Wa-ter con-Linues to be sprayed a-t cylindrical air filter through spray nozzles 19 and 36 which goes over for the same area on the descent that was covered during the ascent of spray nozzle carrier 20. As spray nozzle carrier descends a point i5 reached where bearing 22 engages second contact 37 to lower rod 24, breaking the magnetic connection between magnet 26 and contact plate 25. When rod 24 falls piston 60 is switched back into the first position and the vertical cycle of raising and lowering spray nozzle carrier 20 is repeated. In each vertical cycle of raising and lowering of spray nozzle assembly 20, turnta'ole 14 must be incrementally turned so that the spray of spray nozzles 19 and 36 is directed to each succeeding pleat or fold of cylindrical air filter in turn. Upon spray nozzle carrier 20 being lowered lever 21 slidingly engages one of teeth 68 which results in the incremental rotation of turntable 14.
It will be apparent to one skilled in the art that modification can be made to the illustrated embodiment without departing from the spirit and scope of the invention as defined by the claims.
RACKGROUND OF T~E INVENTION
Cylindrical air filters are used on mo-tor driven equipment to remove small contaminants from combustion air. They can come in either a tublllar form or clc)sed at one end. Once the filtering media becomes impregnated with contaminants the useful ~iEe of the filter is completed. The cost of some cylindrical filters is high enough that it warrants washing SllCh ~ilters in order to permit them to be reused.
There are two problems with existing apparatus which are used to wash cylindrical air filters. The first problem relates to complex drive mechanisms used in such equipment which add to the cost of manufacture and require additional ongoing maintenance. The second problem relates to the overall efficiency of the washing apparatus. Generally such apparatus posi-tion the cylindrical air filter on a turntable and rotate the turntable continuously while the filter is subjected to the spray from spray jets. This method of washing does not facilitate the penetration of the spray deep into the pleats and folds of the filter where contaminants accumulate.
SUMMARY OF THE INVENTION
What is requires is an apparatus for cleaning cylindrical air filters which is more effective in directing the spray into pleats and folds where contaminants accumulate and yet has a relatively simple drive mechanism~
According to the presen-t inverltion there is -\
lZ9997~
provided an apparatus for clearlirlg cylind-rical air filters which i9 comprised of a housing havirlg a bottom, sides, and an opening whereby a cylindrical filter is inserted into the housing. A turntable is transversely secured be-tween the sides of the housing, whereby a cylindrical air filter is placed upon the turrltable for rotation within the housing. The turntable has at least one opening therethrough. A spray nozzle carrier is movable secured to the sides of the housing, such tha-t the spray nozzle carrier is vertically movable. The spray nozzle carrier has a first fluid conduit positioned adjacent the turntable. The first fluid conduit has at least one spray nozzle focused radially inwardly toward the turntable. The spray nozzle carrier has a second fluid conduit extending through -the opening in the turntable. The second fluid conduit has at least one spray nozzle focused radially outwardly in rela-tion to the turntable. The spray nozzle carrier has a centrally disposed cylinder. A fixed hollow piston extends through the bottom fo the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carrier. A first fluid supply line extends through the housing. The fluid supply line has a first end connected to the hollow piston and a second end adapted for connectiorl to a pressurized fluid source, whereby the position is supplied with a source of fluids for the purpose of raising the spray nozzle carrier. A
valve is provided on the first fluid supply line. The valve has a first position and a second position. In the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the lZ99979 spray nozzle carrier. Valve switching means are ~ecured to the side of the housing. The valve is switched to the second position once the spray nozzle carrier has reached a preset height. A second fluid supply line extends through the housirlg. The fluid supply line has a first end connected to the fluid condult~ of the carrier assembly and a second elld adapted Eor conrlectiorl to a pressurized fluid source. The fluid conduits are supplied Wittl a source of fluids under pressl1re which are expelled through the spray nozzles for the purpose of cleaning a cylindrical filter positioned on the turntable. Means are provided for incrementally rotating the turntable as the spray nozzle carrier is vertically raised and lowered.
The apparatus for washing cylindrical air fil-ters as described has spray nozzles which directs a cleaning spray vertically up and down a pleat or fold in an air filter. Once the up and down movement of the spray nozzle carrier is completed the turntable is incrementally rotated in order that the spray nozzle is directed at the next pleat or fold in -the air filter.
This movement provides a much superior result to apparatus in which the air filter is continuously rotated. In addition, the movement is water powered.
This greatly simplifies the design by eliminating as many as two electric drive motors with interrelated components.
~RIEF DESCRIPTION OF THE DRAWINGS
These and other features of the invention will become more apparent from the following description in which reference is made to the appended drawings wherein:
FIGURE 1 is a front elevation view of an apparatus lZ99979 for washing cylindrical air filters constructed in accordance with the teachings of the invention.
FIGURE 2 is a longitudinal section view taken along section lines II-II of FIGURE l.
FIGURE 3 is a front elevation view, partially cut away, of the filter washing apparatuC illu~trated in FIGURE
1.
FIGURE 4 is a transverse section view taken along section lines IV-IV of FIGURE 1.
FIGURE 5 is a transverse section view taken along section lines V-V of FIGURE 1.
FIGURE 6 is a detailed longitudinal section view taken along section lines VI-VI of FIGURE 2.
FIGURE 7 is a detailed longitudinal section view taken along section lines VII-VII of FIGURE 2.
The preferred embodiment, an apparatus for cleaning cylindrical air filters, will now be described with reference to FIGURE 1 through 7.
Referring to FIGURE l, the apparatus for cleaning cylindrical air filters consists of a housing 1 in the form of a leak-proof cabinet manufactured of a suitable rut-proof material. Housing 1 has a bottom 50 and sides 52. An opening, in the form of a sealed door 2 is provided in order a cylindrical air filter 45 can be inserted into housing 1. Door 2 has an observation window 3. Referring to FIGURE 2, a turntable 14 is transversely secured between sides 52 of housing 1.
Cylindrical air filter (not shown) is placed upon turntable 14 which rotates within housing 1. Turntable : 14 is secured to stationary table 16 and is rotatably mounted on bearings 15. Stationary table 16 rests upon transverse rods 17 which extend between sides 52 of ~ ' .
housing 1. Turrltable 14 has at lea~t one opening 54 therethrough. A spray nozzle carrier 20 i8 movably secured to sides 52 of housing 1 by guide rods 27, such that spray nozzle carrier 20 is vertically movable.
Spray nozzle carrier 20 has a bearing 22 which bears against guide rods 27. Spray nozzle carrier 20 has a pair of firs-t fluid conduits 18 positioned adjacent turntable 14. First fluid conduits 18 each have a spray nozzle 19 focused radially inwardly toward turntable 14.
Spray nozzle carrier 20 has a second fluid conduit 35, extending through opening 54 in turntable 14. Second fluid conduit 35 has a pair of spray nozzles 36 focused radially ou-twardly in relation to turntable 14. Second fluid conduit 35 surrounds az central cylinder 34, the function of which will hereinafter be explained. The relationship between second fluid conduit 35 and cylinder 34 is illustrated in FIGURE 7. A fixed hollow piston 32 extends through bottom 50 of housing 1 and is received in cylinder 34 of spray nozzle carrier 20.
Hollow piston 32 is located on plate 39 which is supported by carrier rods 38 fixed to sides 52 of housing 1. A first fluid supply line 58, consisting of sections 5, 11, 12 and 13, extends through housing 1.
First fluid supply line 58 has a first end at which section 13 is connected to hollow piston 32 and a second end at which section 5 is adapted for connection to a pressurized fluid source. Two valves are positioned on first fluid supply line 58, a shut off valve 9 and a main gate valve 10. Main gate valve 10 has a first position and a second position. In the first position an inflow of fluids through hollow piston 32 into cylinder 34 occurs to raise spray nozzle carrier 20 and in the second position an outflow of fluids from cylinder 34 occurs to lower spray nozzle carrier 20.
Referring to FIGURE 7, the flow between hollow piston 32 ~, ~299979 and cylinder 34 passes -thrnllgh ven-t 33. RefHrr;rlg to FIGURE 6, valve 10 consists of a ho]low body 4n having a first opening 41 which is adapted for connection to a pressurized fluid source, a second openiTIy 42 which is adapted for connection by section l2 to section 13 at second end of first fluid supply line 58 and a th:ird opening 43 which iS adapted for connection via a drainage valve 44 to a drain 4. A piston 60 ;s movable within hollow body 40 between a first position and a second position. In the first position piston 60 obstructs the third opening 43 thereby allowing fluids to flow in first opening 41 from the pressurized fluid source and out of second opening 42 through sections 12 and 13 of first fluid supply line 58 and hollow piston 15 32 to cylinder 34. In the second position piston 60 obstructs first opening 41 thereby allowing fluids to flow in second opening 42 from cylinder 34 via hollow piston 32 and sections 12 and 13 of first fluid supply line 58 and then out of third opening 43 through drainage value 44 to drain 4. Valve switching means secured to side 52 of housing 1 are used to switch valve 10 from the first position to the second position once spray nozzle carrier 20 has reached a present height.
The valve switching means consist of a rod 24 having a 25 f irst end 62 connected to piston 60 of valve 10 and a second end 64. A first contact 23 is positioned adjacent second end 64 of rod 24. The height of first contact 23 is adjustable. I~pon spray nozzle carrier 20 reaching the preset height of first contact 23, bearing 30 22 of spray nozzle carrier 20 engages first contact 23 to physically raise rod 24. This switches piston 60 into the second position. A magnet 26 is secured to housing 1. Magnet 26 magnetically holds a contact plate 25 of a magnetic material at second end 64 of rod 24, to temporarily maintain rod 24 in a raised position thereby R~
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~299g7~
maintaining piston 60 in the sec:ona position. A secoT-d contact 3~ is secured to rod 24 such that upon spray nozzle carrier 20 being lowered -to a prede-termined level, bearing 22 of spray nozzle carrier 20 engages second contact 37 to lower rod 24 -thereby swit(-hing piston 60 into the first position. A secorlcl fluid supply line 66 conslstinc3 of sec-tions 6, 2fl, and 30 extends through housing 1. Second Eluid supply line 66 has section 28 and 30 at a first end. Section 30 is connected at connection 31 to fluid conduit 35 of carrier assembly 20~ Flow through section 30 is controlled by valve 8. Section 28 is connected at connection 29 to fluid condui-t 18 of carrier assembly 20. Flow through section 28 is controlled by valve 7.
Section 6, at a second end of second fluid flow line 66, is adapted for connection to a pressurized fluid source.
Means are provided for incrementally rotating turntable 14 as spray nozzle carrier 20 is vertically raised and lowered. This consists of a plurality of tee-th 68 secured to turntable 14 and a lever 21 secured to spray nozzle carrier 20.
The use and operation of the apparatus for washing cyIindrical air filters will now be described with reference to FIGURES 1 through 7. Cylindrical air filter 45 is inserted into housing 1 through door 2, and placed upon turntable 14. A "Y" shaped splitter attachment is used to connect the municipal water service to both first fluid supply line 58 and second fluid supply line 66. The pressure provided by the municipal water service is sufficient to operate -the entire apparatus. Water flowing into second fluid supply line 66 provides fluids to first fluid conduit 18 and second fluid conduit 35. Water flows through conduit 18 to spray nozzles 19. The spray from spray ~299979 nozzles 19 is d;rected ;nwardly toward cy]irldr;cal air filter 45 which is positloned on turn-table 14. Water flows throuyh second fluid conduit 35 to spray noæY.les 36. The spray from spray nozzles 36 is directed outwardly from opening 54 in turntable 14 toward cylindrical air filter. As turntable 14 does not cont;nuously rotate, the spray is directed ;nto the pleats or folds of cylindrical air filter where contaminants accumulate. The water flowing through first fluid supply line 58 is directed into valve 10.
Water enters openirlg 41 and is directed out opening 42, via sections 12 and 13, to hollow piston 32. The flow of water through hollow piston 32 serves to fill cylinder 34 thereby raising spray nozzle carrier 20. As spray nozzles lg and 36 are secured to spray nozzle carrier 20, the spray nozzles travel vertically along the pleat or fold of cylindrical air filter as spray nozzle carrier 20 is raised. Spray nozzle 20 continues to rise vertically until bearing 22 of spray nozzle carrier 20 engages first contact 23 to physically raise rod 24. First contact 23 would normally be preset at a height which corresponds with the height of cylindrical air filter being cleaned. From the previous description of interrelationship of the movement of rod 24 with valve 10, it will be apparent that as rod 24 is raised piston 60 is also raised into the second position. In the second position piston 60 obstructs first opening 41 thereby preventing the further entry of water from first fluid supply line 58. The removal of the water pressure from the parts of the system downstream of valve 10 results in water flowing back through second opening 42.
The water flowing back into valve 10 through second opening 42 has a drainage path through third opening 43.
Third opening 43 communicates with valve 44 which drains the water into a drain 4 at bottom 50 of housirlg 1.
r~ .
lZ99979 g Magnet 26 magnetically holds corltact plate 25 at seconc~
end 64 of rod 24, to temporarily maintain rod 24 in a raised position thereby maintairlirlg pistorl 60 in -the second position while such drainage ocurs. As water drains from cylinder 34, spray nozzle carrier 20 slowly is lowered. The speed of descent is controlled by the setting of valve 44. Wa-ter con-Linues to be sprayed a-t cylindrical air filter through spray nozzles 19 and 36 which goes over for the same area on the descent that was covered during the ascent of spray nozzle carrier 20. As spray nozzle carrier descends a point i5 reached where bearing 22 engages second contact 37 to lower rod 24, breaking the magnetic connection between magnet 26 and contact plate 25. When rod 24 falls piston 60 is switched back into the first position and the vertical cycle of raising and lowering spray nozzle carrier 20 is repeated. In each vertical cycle of raising and lowering of spray nozzle assembly 20, turnta'ole 14 must be incrementally turned so that the spray of spray nozzles 19 and 36 is directed to each succeeding pleat or fold of cylindrical air filter in turn. Upon spray nozzle carrier 20 being lowered lever 21 slidingly engages one of teeth 68 which results in the incremental rotation of turntable 14.
It will be apparent to one skilled in the art that modification can be made to the illustrated embodiment without departing from the spirit and scope of the invention as defined by the claims.
Claims (6)
1. An apparatus for cleaning cylindrical filters, comprising:
a. a housing having a bottom, sides, and an opening whereby a cylindrical filter is inserted into the housing;
b. a turntable transversely secured between the sides of the housing, whereby a cylindrical filter placed upon the turntable is rotatable within the housing, the turntable having at least one opening therethrough;
c. a spray nozzle carrier movably secured to the sides of the housing such that the spray nozzle carrier is vertically movable, the spray nozzle carrier having a first fluid conduit positioned adjacent the turntable, the first fluid conduit having at least one spray nozzle focused radially inwardly toward the turntable, the spray nozzle carrier having a second fluid conduit extending through the opening in the turntable, the second fluid conduit having at least one spray nozzle focused radially outwardly in relation to the turntable, the spray nozzle carrier having a centrally disposed cylinder;
d. a fixed hollow piston extends through the bottom of the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carrier;
e. a first fluid supply line extends through the housing, the first fluid supply line having a first end connected to the hollow piston and a second end adapted for connection to a pressurized fluid source, whereby the piston is supplied with a source of fluids for the purpose of raising the spray nozzle carrier;
f. a valve is provided on the first fluid supply line, the valve having a first position and a second position, such that in the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the spray nozzle carrier;
g. valve switching means are secured to the side of the housing, such that the valve is switched to the second position once the spray nozzle carrier has reached a preset height;
h. a second fluid supply line extends through the housing, the second fluid supply line having a first end connected to the fluid conduits of the carrier assembly and a second end adapted for connection to a pressurized fluid source, whereby the fluid conduits are supplied with a source of fluids under pressure which are expelled through the spray nozzles for the purpose of cleaning a cylinder filter positioned on the turntable; and i. means are provided for incrementally rotating the turntable as the spray nozzle carrier is vertically raised and lowered.
a. a housing having a bottom, sides, and an opening whereby a cylindrical filter is inserted into the housing;
b. a turntable transversely secured between the sides of the housing, whereby a cylindrical filter placed upon the turntable is rotatable within the housing, the turntable having at least one opening therethrough;
c. a spray nozzle carrier movably secured to the sides of the housing such that the spray nozzle carrier is vertically movable, the spray nozzle carrier having a first fluid conduit positioned adjacent the turntable, the first fluid conduit having at least one spray nozzle focused radially inwardly toward the turntable, the spray nozzle carrier having a second fluid conduit extending through the opening in the turntable, the second fluid conduit having at least one spray nozzle focused radially outwardly in relation to the turntable, the spray nozzle carrier having a centrally disposed cylinder;
d. a fixed hollow piston extends through the bottom of the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carrier;
e. a first fluid supply line extends through the housing, the first fluid supply line having a first end connected to the hollow piston and a second end adapted for connection to a pressurized fluid source, whereby the piston is supplied with a source of fluids for the purpose of raising the spray nozzle carrier;
f. a valve is provided on the first fluid supply line, the valve having a first position and a second position, such that in the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the spray nozzle carrier;
g. valve switching means are secured to the side of the housing, such that the valve is switched to the second position once the spray nozzle carrier has reached a preset height;
h. a second fluid supply line extends through the housing, the second fluid supply line having a first end connected to the fluid conduits of the carrier assembly and a second end adapted for connection to a pressurized fluid source, whereby the fluid conduits are supplied with a source of fluids under pressure which are expelled through the spray nozzles for the purpose of cleaning a cylinder filter positioned on the turntable; and i. means are provided for incrementally rotating the turntable as the spray nozzle carrier is vertically raised and lowered.
2. An apparatus for cleaning cylindrical filters as defined in Claim 1, the means for incrementally rotating the turntable comprising:
a. a plurality of teeth secured to the turntable; and b. a lever secured to the spray nozzle carrier, such that upon the spray nozzle carrier being lowered the lever slidingly engages one of the teeth thereby incrementally rotating the turntable.
a. a plurality of teeth secured to the turntable; and b. a lever secured to the spray nozzle carrier, such that upon the spray nozzle carrier being lowered the lever slidingly engages one of the teeth thereby incrementally rotating the turntable.
3. An apparatus for cleaning cylindrical filters as defined in Claim 1, the valve comprising:
a. a hollow body having a first opening which is adapted for connection to a pressurized fluid source, a second opening which is adapted for connection to the second end of the first fluid supply line and a third opening which is adapted for connection to a drain; and b. a piston movable within the hollow body between a first position and a second position, in the first position the piston obstructs the third opening thereby allowing fluids to flow in the first opening from the pressurized fluid source and out of the second opening through the hollow piston to the cylinder, in the second position the piston obstructs the first opening thereby allowing fluids to flow in the second opening from the cylinder via the hollow piston and out of the third opening to the drain.
a. a hollow body having a first opening which is adapted for connection to a pressurized fluid source, a second opening which is adapted for connection to the second end of the first fluid supply line and a third opening which is adapted for connection to a drain; and b. a piston movable within the hollow body between a first position and a second position, in the first position the piston obstructs the third opening thereby allowing fluids to flow in the first opening from the pressurized fluid source and out of the second opening through the hollow piston to the cylinder, in the second position the piston obstructs the first opening thereby allowing fluids to flow in the second opening from the cylinder via the hollow piston and out of the third opening to the drain.
4. An apparatus for cleaning cylindrical filters as defined in Claim 3, the valve switching means comprising;
a. a rod having a first end connected to the piston of the valve and a second end;
b. a first contact at the second end of the rod such that upon the spray nozzle carrier reaching a predetermined height the spray nozzle carrier engages the first contact to raise the rod thereby switching the piston into the second position;
c. means for engaging the rod secured to the housing such that the rod is temporarily maintained in a raised position thereby maintaining the piston in the second position; and d. a second contact secured to the rod such that upon the spray nozzle carrier being lowered to a predetermined level the spray nozzle carrier engages the second contact to lower the rod thereby switching the piston into the first position.
a. a rod having a first end connected to the piston of the valve and a second end;
b. a first contact at the second end of the rod such that upon the spray nozzle carrier reaching a predetermined height the spray nozzle carrier engages the first contact to raise the rod thereby switching the piston into the second position;
c. means for engaging the rod secured to the housing such that the rod is temporarily maintained in a raised position thereby maintaining the piston in the second position; and d. a second contact secured to the rod such that upon the spray nozzle carrier being lowered to a predetermined level the spray nozzle carrier engages the second contact to lower the rod thereby switching the piston into the first position.
5. An apparatus for cleaning cylindrical filters as defined in Claim 1, the pressurized fluid source being a municipal water service.
6. An apparatus for cleaning cylindrical filters, comprising:
a. a housing having a bottom, sides, and an opening whereby a cylindrical filter is inserted into the housing;
b. a turntable transversely secured between the sides of the housing, whereby a cylindrical filter placed upon the turntable is rotatable within the housing, the turntable having at least one opening therethrough;
c. a spray nozzle carrier movably secured to the sides of the housing such that the spray nozzle carrier is vertically movable, the spray nozzle carrier having a first fluid conduit positioned adjacent the turntable, the first fluid conduit having at least one spray nozzle focused radially inwardly toward the turntable, the spray nozzle carrier having a second fluid conduit extending through the opening in the turntable, the second fluid conduit having at least one spray nozzle focused radially outwardly in relation to the turntable, the spray nozzle carrier having a centrally disposed cylinder;
d. a fixed hollow piston extends through the bottom of the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carrier;
e. a first fluid supply line extends through the housing, the fluid supply line having a first end connected to the hollow piston and a second end adapted for connection to a pressurized fluid source, whereby the piston is supplied with a source of fluids for the purpose of raising the spray nozzle carrier;
f. a valve is provided on the first fluid supply line, the valve having a first position and a second position, such that in the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the spray nozzle carrier, the valve comprising:
i. a hollow body having a first opening which is adapted for connection to a pressurized fluid source, a second opening which is adapted for connection to the second end of the first fluid supply line and a third opening which is adapted for connection to a drain;
ii. a piston movable within the hollow body between a first position and a second position, in the first position the piston obstructs the third opening thereby allowing fluids to flow in the first opening from the pressurized fluid source and out of the second opening through the hollow piston to the cylinder, int he second position the piston obstructs the first opening thereby allowing fluids to flow in the second opening from the cylinder via the hollow piston and out of the third opening to the drain;
g. valve switching means are secured to the side of the housing, such that the valve is switched to the second position once the spray nozzle carrier has reached a preset height, the valve switching means comprising;
i. a metal rod having a first end connected to the piston of the valve and a second end;
ii. a first contact at the second end of the rod such that upon the spray nozzle carrier reaching a predetermined height the spray nozzle carrier engages the first contact to raise the rod thereby switching the piston into the second position;
iii. a magnet secured to the housing such that the rod is temporarily maintained in a raised position thereby maintaining the piston in the second position; and iv. a second contact secured to the rod such that upon the spray nozzle carrier being lowered to a predetermined level the spray nozzle carrier engages the second contact to lower the rod thereby switching the piston into the first position;
h. a second fluid supply line extends through the housing, the fluid supply line having a first end connected to the fluid conduits of the carrier assembly and a second end adapted for connection to a pressurized fluid source, whereby the fluid conduits are supplied with a source of fluids under pressure which are expelled through the spray nozzles for the purpose of cleaning a cylindrical filter positioned on the turntable; and i. means for incrementally rotating the turntable as the spray nozzle carrier is vertically raised and lowered, the means comprising:
i. a plurality of teeth secured to the turntable;
and ii. a lever secured to the spray nozzle carrier, such that upon the spray nozzle carrier being lowered the lever slidingly engages one of the teeth thereby incrementally rotating the turntable.
a. a housing having a bottom, sides, and an opening whereby a cylindrical filter is inserted into the housing;
b. a turntable transversely secured between the sides of the housing, whereby a cylindrical filter placed upon the turntable is rotatable within the housing, the turntable having at least one opening therethrough;
c. a spray nozzle carrier movably secured to the sides of the housing such that the spray nozzle carrier is vertically movable, the spray nozzle carrier having a first fluid conduit positioned adjacent the turntable, the first fluid conduit having at least one spray nozzle focused radially inwardly toward the turntable, the spray nozzle carrier having a second fluid conduit extending through the opening in the turntable, the second fluid conduit having at least one spray nozzle focused radially outwardly in relation to the turntable, the spray nozzle carrier having a centrally disposed cylinder;
d. a fixed hollow piston extends through the bottom of the housing and is received in the cylinder of the spray nozzle carrier such that a flow of fluids through the hollow piston serves to fill the cylinder thereby raising the spray nozzle carrier;
e. a first fluid supply line extends through the housing, the fluid supply line having a first end connected to the hollow piston and a second end adapted for connection to a pressurized fluid source, whereby the piston is supplied with a source of fluids for the purpose of raising the spray nozzle carrier;
f. a valve is provided on the first fluid supply line, the valve having a first position and a second position, such that in the first position an inflow of fluids through the hollow piston into the cylinder occurs to raise the spray nozzle carrier and in the second position an outflow of fluids from the cylinder occurs to lower the spray nozzle carrier, the valve comprising:
i. a hollow body having a first opening which is adapted for connection to a pressurized fluid source, a second opening which is adapted for connection to the second end of the first fluid supply line and a third opening which is adapted for connection to a drain;
ii. a piston movable within the hollow body between a first position and a second position, in the first position the piston obstructs the third opening thereby allowing fluids to flow in the first opening from the pressurized fluid source and out of the second opening through the hollow piston to the cylinder, int he second position the piston obstructs the first opening thereby allowing fluids to flow in the second opening from the cylinder via the hollow piston and out of the third opening to the drain;
g. valve switching means are secured to the side of the housing, such that the valve is switched to the second position once the spray nozzle carrier has reached a preset height, the valve switching means comprising;
i. a metal rod having a first end connected to the piston of the valve and a second end;
ii. a first contact at the second end of the rod such that upon the spray nozzle carrier reaching a predetermined height the spray nozzle carrier engages the first contact to raise the rod thereby switching the piston into the second position;
iii. a magnet secured to the housing such that the rod is temporarily maintained in a raised position thereby maintaining the piston in the second position; and iv. a second contact secured to the rod such that upon the spray nozzle carrier being lowered to a predetermined level the spray nozzle carrier engages the second contact to lower the rod thereby switching the piston into the first position;
h. a second fluid supply line extends through the housing, the fluid supply line having a first end connected to the fluid conduits of the carrier assembly and a second end adapted for connection to a pressurized fluid source, whereby the fluid conduits are supplied with a source of fluids under pressure which are expelled through the spray nozzles for the purpose of cleaning a cylindrical filter positioned on the turntable; and i. means for incrementally rotating the turntable as the spray nozzle carrier is vertically raised and lowered, the means comprising:
i. a plurality of teeth secured to the turntable;
and ii. a lever secured to the spray nozzle carrier, such that upon the spray nozzle carrier being lowered the lever slidingly engages one of the teeth thereby incrementally rotating the turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000553843A CA1299979C (en) | 1987-12-09 | 1987-12-09 | Hydraulic air filter washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000553843A CA1299979C (en) | 1987-12-09 | 1987-12-09 | Hydraulic air filter washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1299979C true CA1299979C (en) | 1992-05-05 |
Family
ID=4137028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000553843A Expired - Fee Related CA1299979C (en) | 1987-12-09 | 1987-12-09 | Hydraulic air filter washer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1299979C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905867A (en) * | 2018-07-26 | 2018-11-30 | 杨真 | A kind of powder of lacquer putty for use on mixing drum automated intelligent cleaning device for construction and decoration |
| CN110153098A (en) * | 2019-06-06 | 2019-08-23 | 中国人民解放军63698部队 | Boat diesel engine filter core ultrasonic cleaning equipment |
| CN111570078A (en) * | 2020-05-08 | 2020-08-25 | 张海军 | Civil engineering is concrete waste recovery device for subway construction |
-
1987
- 1987-12-09 CA CA000553843A patent/CA1299979C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905867A (en) * | 2018-07-26 | 2018-11-30 | 杨真 | A kind of powder of lacquer putty for use on mixing drum automated intelligent cleaning device for construction and decoration |
| CN108905867B (en) * | 2018-07-26 | 2020-12-11 | 东营千木信息科技有限公司 | Automatic intelligent cleaning device for putty powder mixing drum for building decoration |
| CN110153098A (en) * | 2019-06-06 | 2019-08-23 | 中国人民解放军63698部队 | Boat diesel engine filter core ultrasonic cleaning equipment |
| CN110153098B (en) * | 2019-06-06 | 2023-10-27 | 中国人民解放军63698部队 | Filter element ultrasonic cleaning device for marine diesel engine |
| CN111570078A (en) * | 2020-05-08 | 2020-08-25 | 张海军 | Civil engineering is concrete waste recovery device for subway construction |
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| MKLA | Lapsed |