WO2020026275A2

WO2020026275A2 - Automatic backwash filter

Info

Publication number: WO2020026275A2
Application number: PCT/IR2019/050021
Authority: WO
Inventors: Reza GOUDARZI
Original assignee: Goudarzi Reza
Priority date: 2018-07-31
Filing date: 2019-07-23
Publication date: 2020-02-06
Also published as: WO2020026275A3

Abstract

An automatic combination Integral filter, using a sand filter and screen filter in the form of a device, and the use of automation and automatic washing of the process of water and liquids. This is a physical purge device for all particles up to the mesh specified by the designer, which is not the same according to different needs. The dirty fluid comes in from the inlet and the cleaned liquid is removed from the outlet. If the need for a backwash, a device which determines the difference in inlet and outlet pressure, is used, then electric valves that are opened and closed on the inlet and outlet installed by the control circuit, so that the flow of water from the outlet to the conduction input and particles and contaminants Dispose of the system.

Description

[Automatic backwash filter

FIELD

[0001] The present invention relates to water and waste water treatment technologies, particularly relates to an automatic integrated backwash filter background technique.

[0002] With the improvement of people's quality of life, the protection of the natural environment of the proposed new requirements, especially for the protection of water resources and people's lives, re-use is particularly important. Whether industrial water, irrigation water, fish pond water, agricultural water, cooling water circulation systems such as air conditioning, washing water circulation systems, boiler water systems, bath systems, swimming pool systems, such as pharmaceutical and chemical water ol water, filtered, and well water, river water, so the need lor a filtering process , especially in the current development of tourism and beautify the urban environment built fountains, water park, the lormer sewage treatment plant and pumps filters need a lot of water quality filtration treatment, in order to obtain a reasonable water and reuse of clean, thereby protecting water resources and water conservation.

[0003] Therefore belonging filtered water purification process indispensable processing means, for intercepting impurities in the water to purify water or other work protection system devices. Conventional chemical methods rarely used filtered water, mostly a physical purification method using the

filter. Common mesh filter because the filter effect, small resistance widely applied in water filtration, industrial water recycling system, but its drawback is the small amount of pollutant, is susceptible to dirt clogging, complicated cleaning, the device must removal can be achieved cleaning of the filter part, can not monitor the status of the filter, but also by human factors is relatively large, the degree of automation of the entire system is very low. In normal filtration several steps need for removal of all particles same as Algae and Sands but in present invention all steps will be carry out in a combination and integrated filter unit.

SUMMARY

[0004] The object of the present invention according to the above-described shortcomings of the prior art, to provide an automatic integral backwash filter, automatic backwash filters which has a function of raw water was filtered and the filter automatic cleaning of sewage, and when cleaning the sewage system uninterrupted water supply. The device has a high degree of automation, large capacity, backwash time is short, can be self-cleaning sewage, etc., and uninterrupted water supply, the advantages of wide application surface compared with the conventional filter and sand filter.

[0005] The object is achieved according to the present invention accomplished by the following technical solutions: An automatic sand filter combined with an automatic backwash screen filter, comprising same housing and a filter disposed thereto cabinets, defines the water inlet and the filter housing on the water outlet, characterized in that: first part in outer side of body includes sand filters and water goes through it to bottom of filter. After first part cleaning second part filter is substantially closed structure, and its upper and lower ends respectively pivotally connected to the rotating shaft of the housing, the filter provided in the end of the shaft line of a hollow structure with one end of the water filtered nozzle in communication, and the other end disposed in communication with the filter, the upper end is provided with a rotating housing, rotation of the shaft caused by hydraulic power of exhausting water directly driving the rotation of said shaft about the filter, the housing further defines there is a backwash water inlet and a water outlet.

[0006] The backwash water inlet opening to said upper housing, said backwashing inlet connected to a high-pressure backwash pump.

[0007] The water outlet opened in the bottom end of the housing. [0008] The tank space is provided with a longitudinal brush blade and suction nozzles, said brush blade attached to the outer end of said shaft and face of the filter and said suction nozzles assembled beside said brush blade.

[0009] The control system comprises a filter, the upper case is provided with a differential pressure gauge and a pressure switch, the filtered water outlet provided with a pressure gauge and a pressure switches, and a control system connected to receive said pressure switches two or sent to a pressure signal, and controls the solenoid valves for backwash process.

[0010] The filter substantially cylindrical shape, said sand filter in outer side of body and said screen filter in center of body and said two fixed shaft disposed on the axis of the filter, the central portion of the boxlike cylindrical shape and said filter is coaxially set, the tank is provided with a fixed central body parallel to said brush blade through the filter axis, said brush blade attached to the outer end of said shaft and face of the filter.

[0011] The brush blade length is not less than the height of the screen filter.

[0012] The advantages of the present invention are: the use of integral filters combination avoid several filtering needs and help to reduce filtration station area. The use of the power of the brush blade rubbing help to remove particles easily and short washing time. Using no electrical or hydraulic driven motor avoid any electricity consumption and maintenance of any kind of motors. Having a certain space

adjustability. Its scope of application: automatic filters are widely used in drinking water treatment, irrigation, fish farms , construction recycling water treatment, industrial water treatment cycle (most useful in baths, swimming pools, etc.), waste water treatment, mining, water treatment, golf course water treatment, construction, the forefront in the field of iron and steel, petroleum, chemicals, electronics, power generation, textile, paper, food, sugar, pharmaceuticals, plastics, automotive filters and other safeguards.

BRIEF DESCRIPTION

[0013] Drawing including View. 1-3 and P&l Diagram are schematic structural diagram of the assembly of invention detailed

[0014] Referring to said views, an automatic backwash integral filter has included of 3 body parts named A, B and C, A for sand filter part, B for Screen filter part and C for backwash and drain part. For performing the present invention is described as follows:

[0015] As shown in Drawing, reference numerals 1 -21 denote the total: the shell 1 , the filter screen body 2, the sand filter nozzle sheet 3, sand filter nozzle 4 , the screen filter element 5, the brush blade 6, the shaft nozzle 7, the hollow shaft 8, driven outlet 9, sewage inlet nozzle 10, the outlet nozzle 11 , the drain nozzle 12, the hand hole 13, manhole 14, support 15, two pressure gauges and pressure switches 16, 3-way valvel 7, drain valve 18, DP-switch 19, outlet valve 20 , the control system 21.

[0016] An integral filter is composed of a reservoir (A), in which the secondary reservoir (B) is inserted. In the initial space (A), sand layers are mixed in varying degrees from coarse to fine, with the flow of water or other input fluids entering the INLET input first. The sand layers and filters installed on the flat on the coarse gravel (COURSE SAND) should be rejected and entered into the compartment (B). In this section, the equipment for hollow shaft filter (SHAFT) and nozzles (NOZZLE) and BRUSH at the end of that piece, Flash out is installed (compartment (C). All Parts are supported on SUPPORTS, which have two outlet and drain nozzles. The fluid flow alter entering the compartment B is passed through the cylindrical filter of a grid and leaks out to the outside of the cylinder, the particles with a maximum diameter (e.g., 120 microns) pass through the grid (in accordance with the design requirement) with the specified mesh. The adsorbed particles On the inside, the filter is laced. When the input and output pressure difference is exceeded by the designer set pressure, the control panel displays the backstop. The OUT VALVE is closed and the DRAIN VALVE opens. The flow tends to cross the nozzles onto a hollow shaft, and because of the total conduction of the current to the flash out and the angled exit, it is caused by the rotation in the shaft. The shaft separates the inner wall of the screen filter by brush, and the particles that are lined up are driven by the flow of fluid into the Drain nozzle and the output of the machine due to the turbulence generated by the flow through the nozzles on the shaft. This wash is set to 30 seconds by the designer, and then the outlet valve is opened and the Drain valve is closed, but at this time, the triple valve on the inlet nozzle (3-WAY VALVE) disconnects the input current And directs the flow to the output of the back trace. At this time, the liquid is fed from the outlet and directed from the inlet to the back trace and all the particles that are trapped in the gravel are driven out of the machine. After a specified time (up to 5 minutes), the three-way valve changes to the liquid state and returns to the main filtration state of the machine and resumes its normal operation system .

Claims

Claim

[Claim 1) (Independent) This invention uses a sand filter and screen filter in the form of an Integral Filter and using of automation and automatic cleaning and backwashing for the process of water and fluid treatment. With this invention, there is no need to use different devices for complete physical purification, and all steps are carried out in one device. This is a physical purge device for all particles up to the mesh specified by the designer, which is not the same according to different fluid, industries and usage. Inside the machine there is a rotating hollow shaft for discharging waste materials with longitudinal brushes and drainage nozzles are embedded on. It using suction caused by change of flow direction through the inside of the hollow shaft, will clean the net filter. There is an input for entering the dirty liquid and an outlet for outgoing the cleaned liquid is defined. Time for backwash will determines by pressure difference between inlet and outlet and solenoid valves opened and closed inlet and outlet to control backwash process, so flow of water from the outlet to the conduction input and particles and contaminants dispose of the system. The hollow shaft and nozzles mounted on it will create the function of the machine. Another nozzle is designed to remove particles and remove them from the liquid and send directly to the sewage.

Claim 2) Associate According to claim 1 , this filter has a sand filters and a screen filter compound in a generally cylindrical body as Integral Filter.

Claim (3) As claimed in claim 1 , in the process of washing the filter screen, a new method was used utilizing the fluid exhaust force to use the hydraulic pressure. After the fluid is exited from the shaft to the outlet, it creates a circular motion by means of angular nozzles, which causes the shaft inside the screen filter to rotate. Therefore, the need for rotational movement by an electric or hydraulic motor is eliminated, and also the installations of full length brushes cancel the movement of back and forth by a hydraulic jack or electric motor.

Claim 4) Associate As claimed in claim 1 , this device incorporates all physical purification needs in the form of an integrated unit and has the ability to install additional equipment such as a UV lamp and ozone injection device.