Nozzle-brush automatic cleaning filter with motor reducer

Abstract

The subject matter of the invention is a nozzle-brush automatic cleaning filtration device with motor reducer performing physical cleaning by trapping coarse particles and suspended solid contents in any liquids. These filters perform physical cleaning by trapping coarse particles and suspended solid contents in any liquids.

Claims

1. A filtration device comprising: a filter housing including a filter screen, an inlet pipeline through which a liquid to be filtered enters into an inner volume of the filter screen, and an outlet pipeline through which the liquid passing through the filter screen exits the filter screen; a combined nozzle and brush back-flush device including collector nozzles and brushes, the brushes operable to sweep off coarse dirt from an internal surface of the filter screen and a collector pipe through which a vacuum is created on the collector nozzles for implementing a fine cleaning process; and a console group including a motor reducer and motor operable to rotate the combined nozzle and brush back-flush device thereby removing dirt from an internal surface of the filter screen by way of rotation provided by actuation of the motor, said console group further including exhaust valves fluidically connected to corresponding first and second drainage lines, wherein the first drainage line is fluidically connected to the inner volume of the filter screen to allow removal of coarse particles by opening the exhaust valve in the console group fluidically connected to the first drainage line, and wherein the second drainage line is fluidically separated from the first drainage line by a wall within an interior chamber of the console group, the second drainage line fluidically connected to the collector pipe of the combined nozzle and brush back-flush device to allow removal of fine particles by opening the exhaust valve in the console group fluidically connected to the second drainage line.

2. The filtration device according to claim 1 wherein said filter housing has a cylindrical structure made of a metal or plastic material.

3. The filtration device according to claim 1 wherein said combined nozzle and brush back-flush device further comprises brush fixing plates and brush holders.

4. A filtration device comprising: a filter housing including a cylindrical filter screen, an inlet pipeline through which a liquid to be filtered enters into an inner volume of the cylindrical filter screen, and an outlet pipeline through which the liquid passing through the cylindrical filter screen exits the cylindrical filter screen; a combined nozzle and brush back-flush device including collector nozzles and brushes configured to be placed within the filter screen, the brushes operable to sweep off coarse dirt from an internal surface of the cylindrical filter screen and a collector pipe through which a vacuum is created on the collector nozzles for implementing a fine cleaning process; and a console group including a motor reducer and motor operable to rotate the combined nozzle and brush back-flush device thereby removing dirt from an internal surface of the cylindrical filter screen by way of rotation provided by actuation of the motor, the console group further including exhaust valves fluidically connected to corresponding first and second drainage lines, wherein the first drainage line is fluidically connected to the inner volume of the cylindrical filter screen to allow removal of coarse particles by opening the exhaust valve in the console group fluidically connected to the first drainage line, and wherein the second drainage line is fluidically separated from the first drainage line by a wall within an interior chamber of the console group, the second drainage line fluidically connected to the collector pipe of the combined nozzle and brush back-flush device to allow removal of fine particles by opening of the exhaust valve in the console group fluidically connected to the second drainage line.

5. The filtration device according to claim 4, wherein the cylindrical filter screen is a fully cylindrical structure made of stainless steel.

6. The filtration device according to claim 4, wherein the combined nozzle and brush back-flush device is centered within the cylindrical filter screen with a collector bearing.

7. The filtration device according to claim 4, wherein the combined nozzle and brush back-flush device further comprises brush fixing plates and brush holders.

Description

EXPLANATION OF THE FIGURES

(1) FIG. 1 Sectional view of the mounted filter

(2) FIG. 2 Filter housing

(3) FIG. 3 Filter screen

(4) FIG. 4 Combined Nozzle and Brush device

(5) FIG. 5 Console group with motor reducer

REFERENCE NUMBERS

(6) 1. Reducer Shaft

(7) 2. Collector Pipe

(8) 3. Collector Nozzle

(9) 4. Brush Fixing Plate

(10) 5. Brush Holder

(11) 6. Brush

(12) 7. Collector Bearing

(13) 8. Filter Screen

(14) 9. Motor

(15) 10. Reducer

(16) 11. Console Group with Motor Reducer

(17) 12. Combined Nozzle and Brush Device

(18) 13. Filter Housing

(19) 14. Inlet Pipeline

(20) 15. Outlet Pipeline

(21) 16. Drainage Line (for brush cleaning)

(22) 17. Drainage Line (for nozzle cleaning)

(23) 18. Nozzle

(24) 19. Wall

(25) Working Principle of the Invention

(26) The liquid to be filtered enters to the filter through the inlet pipeline (14). The cylindrical filter screen (8) placed inside the filter performs the filtration of this liquid entering to the filter. The liquid passing through the filter screen (8) gets out via the outlet pipeline (15) and continues its way as a filtered liquid. As this liquid flows through, the filter screen (8) traps the fine and coarse particles inside the liquid described above. Hence, clogging will occur on the internal surface of the filter screen (8) according to the amount of dirtiness in it. Such clogging causes a P value between the inlet and the outlet. Additional different equipment capable to detect the P value is available and can be mounted on the sleeves located on the filter body. According to the design of the filter station and the customer requirements, P or pressure transmitter serves for this purposes. This equipment detecting P sends signals to the motor (9) when the P between the inlet and the outlet has reached a preset value and triggers the cleaning mechanism's operation. Such cleaning process is performed at two stages, namely, brush cleaning and nozzle cleaning.

(27) At the 1.sup.st stage, the brush cleaning mode, the motor (9) starts to rotate the reducer shaft (1). At the same time, the drainage outlet (16) for the brush cleaning process is opened. The collector pipe (2) realizes both its cyclical rotation movement and its linear progressing movement and thus performs a helical displacement provided by the motor (9) to the reducer shaft (1). Owing to such helical movement, the brushes sweep off the dirt accumulated on the internal surface of the screen. The coarse dirt removed from the internal surface of the screen by the brushes is discharged from the filter due to the impact of a strong current created by opening the exhaust valve at the drainage outlet (16) open to the atmosphere.

(28) At the 2.sup.nd stage, fine particles not being removed from the internal surface of the screen by the brushes, will be completely removed during the nozzle cleaning process. The nozzle cleaning process starts after the P has been dropped to some level by the brush cleaning. The combined nozzle and brush back-flush device (12) performs its helical movement while the nozzles are scanning and cleaning the whole screen surface. Meanwhile, the exhaust valve at the drainage outlet (16) for the brush cleaning process is closed and the second exhaust valve at the drainage outlet (17) for the nozzle cleaning process is opened. Afterwards, the dirt passes through the nozzles (3) sucked from the internal surface of the screen through the collector pipe (2) and thus allows the dirt to be discharged from the filter through the second exhaust drainage outlet (17) open to the atmosphere.

(29) When the cleaning procedure is completed, the P between the filter inlet and outlet drops back to its initial value, a signal is sent to the motor and to the exhaust valve (17) to be closed automatically. The system continuous to perform its ordinary operations (filtration).

(30) During these stages execution, the filtration process is not interrupted.

(31) Structure of the Invention

(32) Basically, the invention consists of four major groups:

(33) 1. Filter Housing (13)

(34) 2. Filter Screen (8)

(35) 3. Combined Nozzle and Brush Device (12)

(36) 4. Console Group with Motor Reducer (11)

(37) Filter Housing

(38) The filter housing (13) is a structure manufactured either from metal or plastic based materials (stainless steel, carbon steel, etc.) having a fully cylindrical shape, being its inlet and outlet connections are flanged and equipped with sleeves for extra equipment to be connected.

(39) The filter housing (13) consists of a main pipe including inlet and outlet pipes welded to it. The inlet and outlet pipes are flanged and therefore can be easily mounted to pressurized or non-pressurized pipelines. A flange fixing the console group (11) with motor reducer is located on the upper part of the body.

(40) The filter housing (13) is designed to resist to a pressure of 10 bars or 16 bars, depending on the specific requirement. Also, the device can be manufactured to suit temperatures of 60 C. or 90 C.

(41) Filter Screen

(42) The filter screen (8) is a structure performing the filtration function, manufactured from stainless steel, having a full cylindrical form and capable to offer various filtration ratios.

(43) The diameter and height of the filter screen is specified as to provide the filtration surface, which is calculated on the basis of the filter inlet and outlet diameters and the flow rate quantity. Afterwards, the manufactured screen (8) is placed into the filter housing (13).

(44) Combined Nozzle and Brush Back-Flush Device

(45) The combined nozzle and brush back-flush device (12) is a group consisting of several parts as a stainless steel collector pipe (2), stainless steel collector nozzles (3), stainless steel brush fixing plates (4), and brushes (6) manufactured from metal or plastic based materials, and brush holders (5) and nozzles (18). Upon placing the filter screen (8) into the filter housing (13), this device is mounted into the screen and thus it is centered with the collector bearing (7). It has the functionality to remove the dirt from internal surface of the filter screen (8) by rotating (cyclical and linear movement) due to the actuation of the motor.

(46) Console Group with Motor Reducer

(47) The console group (11) with motor reducer is a console consisting of several parts as a motor (9)reducer (10) providing the rotation to the combined nozzle and brush back-flush device (12), housing connection flanges, drainage pipes, flanged parts and other parts. Upon placing the internal parts into the filter housing (13), this console group (11) with motor reducer is placed onto the housing and connected to it.