TECHNICAL FIELD

The present invention relates to two-stage automatic filtration systems which provide filtration of drinking water, industrial and agricultural irrigation water, and which are based on the principle of zero waste.

The present invention particularly relates to; two-stage automatic filtration systems comprising a single drive system that cleans coarse and fine filters on a single axis, at the same time or at different times.

STATE OF THE ART

The amount of water used is gradually increasing with the increase of population and the development of industry. Water scarcity is one of the major problems of 21st century and the resources are expected to be one of the most sensitive environmental issues due to irregular distribution of purification and climate change in the coming years. The scarcity of water resources in the world makes the recovery and reuse of wastewater a current issue. Increased pressure for water sources causes, both in terms of water scarcity and deterioration of water quality, recovered water to be evaluated as a new water source. Environmental and economic benefits and recovery technologies provide opportunities for reuse of wastewater. It is possible to meet the amount of water used in urban, industrial and agricultural areas by means of the wastewater recovery. Recovered water is considered to be an alternative freshwater source for areas having problems of water availability or increased consumption. There are projects designed for recovery and use of wastewater in the world and in Turkey. Large amounts of wastewater discharges and drawbacks in wastewater recovery shows that there is great potential of wastewater to be reused, but advanced work is needed on this. Today, apparatus which have a filter in automatic filter, and which also clean the filter by electric motor and cleaning equipment with pressure difference and time control, and which allow the passage of filtered water at the same time are used. 200 microns is defined as coarse filtration up to a pore diameter of 0,2 mm, and it is defined under 200 microns as fine filtration. The particle size in the fluidic liquid creates the need of filtration at varying micron levels for the purpose of application. In this regard, two separate filtration systems are used as coarse and fine. This above-mentioned situation affects the operational and initial investment costs in direct proportion to the increase in equipment.

The filters used in the state of the art have either single stage filtration or two different drives and motors having manual cleaning of coarse filtration or for two-stage filtration. Said manual cleaning system has the disadvantages of operating difficulties and loss of labor, and the dual engine systems have disadvantages such as high investment and operating costs.

In conclusion, for the solution of above-mentioned problems existing in the state of the art, the need for a new economic, useful, two-stage automatic filtration systems and the insufficiency of the existing solutions have made it essential to make an improvement in the related technical field.

OBJECTS OF THE INVENTION

The invention relates to two-stage automatic filtration systems which is developed for eliminating abovementioned disadvantages and for bringing along new advantages to related technical field, and which provide filtration of drinking water, industrial and agricultural irrigation water, and which are based on the principle of zero waste. The most important object of the invention is that it automatically cleans both the coarse and fine filter.

A further object of the invention is that the two filters can be cleaned synchronously or at different time intervals by means of a single motor. Said variable cleaning option offers advantages such as filtration at different micron levels, low water and energy consumption in a single device.

Structural and characteristic specifications and all advantages of the invention will be understood more clearly by means of following figures and detailed description written by making references to these figures and therefore, assessment should be done by taking into consideration these figures and detailed description.

DESCRIPTION OF THE FIGURES FIGURE 1 The drawing illustrating the inventive two-stage automatic filtration system.

FIGURE 2 The drawing illustrating the inventive two-stage automatic filtration system in cross-sectional view. REFERENCE NUMERALS

10. Body

20. Suction Nozzle System 30. Inlet Pipe

40. Outlet Pipe 50. Washing Pipe

60. Differential Pressure Sensor

70. Coarse Filter

80. Fine Filter 90. Drive System

100. Shaft

110. Collector 120. Measuring Pipe 130. Brush 140. Brush Centering Flange

150. Nozzle Centering Flange

DETAILED DESCRIPTION OF THE INVENTION

This detailed description relates to the inventive two-stage automatic filtration systems which provide filtration of drinking water, industrial and agricultural irrigation water, and which are based on the principle of zero waste.

The inventive two-stage automatic filtration system is shown in Figure 1 and Figure 2. In the invention, the body (10) of the two-stage automatic filtration system is designed such that it comprises all the components operating in the form of 2 separate filters (70, 80) group. The fluid to be filtered enters into coarse filter component (70) from its open bottom portion after entering into the body (10) through the inlet pipe (30), and primarily coarse filtration of the fluid is realized when passing through the coarse filter component (70), and then it passes into fluid fine filter (80) that is purified from coarse particles. Here, as it passes through the fine filter (80) from inside to outside, it leaves the body from the outlet pipe (40) after filtration of the fine particles.

When the internal parts of the filter components (70, 80) are contaminated, a pressure difference occurs between the water inlet and outlet pipes (30, 40). When this contamination reaches a certain level, the differential pressure sensor (60), which is connected to the measuring pipes (130), starts the cleaning process by sensing that.

In the cleaning process, the drive system (90) is activated and begins to rotate the collector (110) and the shaft (100) connected to it. In the priortechnology the difference is that, instead of two drive units, which clean the coarse (70) and fine (80) filters by operating on different axis, a single drive system (90) is used to wash full-automatically both filters simultaneously or at different times on a single axis. The cleaning of the coarse filter (70) is performed by the fact that a brush (130) centered by a brush centering flange (140) rotates and sweeps coarse particles accumulated on the surfaces, while the cleaning of the fine filter (80) is carried out by the suction nozzle system (20) centered by the suction nozzle centering flange (150). Here, the particles inside the coarse filter (70) are removed by the brush (130) connected to the shaft (100) and are ejected out by means of washing pipes (50). Likewise, by the vacuum effect occurred when the washing pipes (50) are opened, the particles contained inside the inner portion of the fine filter (80) are sucked by the nozzles (20) and transferred to the collector (110) and discharged through the washing pipes (50). In this new technology, a single axis, static suction nozzle having high suction power is started to be used instead of a dual axis mobile backwash mechanism having a high-probability of failure. In order to increase the suction power of the washing pipes (50), the nozzles (20) located on the collector (110) are designed such that they are be able to carry out backwash in groups. The protection scope of this application is specified under claims and can definitely not be limited to those described with the aim of illustration, it is clear that a person skilled in the art can provide the novelty provided in the invention by using similar configurations and/or can implement this configuration in other similar intended areas used in the related art. Therefore, it is obvious that such embodiments will be devoid of novelty and especially the criteria of surpassing the state of the art.