KR20130051693A - Automatic backwashing of filtering device for washing water - Google Patents

Abstract

PURPOSE: A chip filter of washing water capable of automatic backwashing is provided to automatically perform backwashing in an opposite direction from a purification direction of a filter by sensing filter clogging using a pressure sensor. CONSTITUTION: A chip filter of washing water capable of automatic backwashing includes a cylindrical receiving body (100). The receive body comprises a dirty tank (700), a clean tank (800), a fluid pump(600), first and second three way automatic opening and closing valves (500, 510), first and second two way automatic opening and closing valves (520, 530), a pressure sensing member (300), and a filter (200). If pressure rises in the receiving body because of clogging phenomenon of a filter hole in the filter is generated, the pressure sensor inside the pressure sensing member senses the risen pressure, and the controller compares the risen pressure with the pre-set value. If the risen pressure is higher than the set value, the automatic opening and closing valves are operated by the electric signals of the pressure sensing member and the backwashing process is performed.

Description

Chip back filter for washing water with automatic backwashing {AUTOMATIC BACKWASHING OF FILTERING DEVICE FOR WASHING WATER}

The present invention relates to a washing water chip filtration device capable of automatic backwashing, and operates a plurality of automatic switching valves by an electrical signal of a pressure sensor that automatically detects a blockage of the filtration device filter by removing chips or foreign substances contained in the washing water. The present invention relates to a washing water chip filtration device that automatically removes filter clogging by flowing the washing water in a reverse direction.

In general, various oils on the surface of machinery and components after metal processing, and impurities such as metal chips and dust deteriorate the work efficiency of the plating, painting, and surface treatment processes after cutting, so it is not necessary to remove them with washing water. have.

In accordance with the repeated use of the water-soluble washing water used in machine tools, the content of various metalworking shares, metal chips and the like separated into processed products increases in the aqueous solution, and in order to reuse the washing water, conventionally a method of filtering metallic chips using magnetic force Or filtration by filter cloth has been used.

If the amount of surfactant and dispersant in the wash water and the contaminants associated therewith is increased to some extent, an oil film is formed on the surface of the washing liquid, and particles such as metal chips precipitate at the bottom of the washing tank. Since there is a considerable amount of cleaning power left in this state, it is a waste of resources and money.

Accordingly, according to the conventional technology 'fluid filtration device' (Patent Publication No. 10-2009-0052980, Publication Date May 27, 2009), the fluid filtration device for removing impurities contained in various fluids, A body having a hollow part therein, and a fluid inlet through which a fluid containing impurities flows from the outside, a fluid outlet for circulating the filtered fluid, and an impurity outlet for discharging the removed impurities, provided in the hollow part of the body. A unit filter having a disc shape having a shaft hole formed at a center thereof, and having at least one fluid through hole penetrating the upper and lower surfaces of the plate, and a plurality of protrusions having a constant height formed on one surface of the position away from the fluid through hole. Filter body formed by successive stacking, one end is placed between each unit filter and the through hole The other end portion formed includes a plurality of scrapers extending outward from the outer surface of the unit filter, a plurality of spacers that are coupled to the other end of the scraper, and have a through hole having a shape corresponding to the through hole of the scraper, and the through holes of the scraper and the spacer. It is described as a cutting oil filtration device, characterized in that it comprises a scraping portion consisting of a support bar inserted into the support body fixed to the main body and a drive motor for transmitting power to the rotating shaft inserted into the shaft hole of the filter body. have.

In addition, according to the prior art 'chip cutting device for cutting oil' (Patent Publication No. 2001-0054795, published on July 02, 2001), chips or sludge contained in the cutting oil discharged from various machine tools The present invention relates to a device for filtering sludge and the like. In particular, the chips of cutting oil are mixed with magnetic force and follicles to maximize the filtration effect, and automatically detect the clogging of the follicles and automatically adjust the flow direction of the cutting oil. Cutting oil chips that transform and spray air to backwash the coolant and aerofoam to eliminate clogging of the follicle, maximizing the savings in maintenance costs and smoothing the filtration. It relates to a filtration device.

In addition, according to the prior art 'chip of cutting oil and filtering device and its backwashing method' (Publication Patent Publication No. 10-2006-0078122, Publication Date July 05, 2006), the cutting oil is introduced into the pipe Magnetic oil filtering means for separating the chips from the storage magnetically, cutting oil through the magnetic filtration means is stored, the dirty tank with a pressure pump for sending to the other filtration unit through the pipe, the pressure pump of the dirty tank is operated to supply the cutting oil The filter tank includes a centrifugal separator separating the chips of cutting oil by centrifugal force and a filter filtration section separating and discharging the chips with a filtration filter, and a clean tank and a filtration tank pressurizing the cutting oil filtered from the filtration tank and resupplying the cutting machine. When the filter filtration part of the filter is blocked, the air supplied from the predetermined air supply part is supplied to the filtration filter together with the cutting oil pressurized by the clean pump. It has a characteristic including a back washing means for washing.

As described above, the conventional backwashable filtration device is a device for filtration or backwashing chips and sludge with a rotating body or an air pump mounted on the accommodating body, and has a complicated structure and a high manufacturing cost. There was a difficult problem to maintain and repair.

Therefore, the present invention has been made to solve the above problems, by detecting the blockage of the filter filter due to the metal chip or foreign matter of the washing water with a pressure sensor to automatically perform the reverse washing operation in the opposite direction to the water purification direction of the filter. It is composed of a structure to perform a low failure rate, low production cost, and to provide a filtration device capable of automatic backwash.

The present invention is the dirty tank 700, the clean tank 800, the fluid pump 600, the first and second three-way automatic open and close valves (500, 510), the first and second two-way automatic open and close valves (520, 530), pressure In the washing water chip filtration device capable of automatic backwashing composed of a cylindrical receiving body 100 in which a sensor member 300 and a filter 200 are embedded, the contaminated washing water stored in the dirty tank 700 is a fluid pump ( By the operation of the 600, the order of the first inlet pipe 710, the first three-way automatic opening and closing valve 500, the main pipe 940, the second three-way automatic opening and closing valve 510, the first body piping (900). Passing through the receiving body 100, the metal chip and the sludge is filtered through a filter mounted inside the receiving body, the filtered wash water is inlet, outlet pipe 930 connected to the upper receiving body and the, After being discharged through the T-shaped pipe 920 connected to the inflow and outflow pipes and the first discharge pipe 720 connected to the T-shaped pipe, the pipe to the clean tank 800 is provided. Is introduced through, but clogging of the filter filter hole occurs when the pressure rises in the receiving body pressure sensor inside the pressure sensor member 300 detects this, the controller compares with the preset set value, the set value If it is higher, it is determined that the filter filtration hole clogging phenomenon, by sending an electrical signal to the automatic opening and closing valves, characterized in that the backwash process is made.

The present invention relates to a chip filtration device for washing water that can be automatically backwashed. The present invention relates to a filtration device for automatically eliminating filter clogging by flowing the washing water in a reverse direction by operating a plurality of automatic switching valves. Compared with the concise structure, the failure rate is low, the manufacturing cost is low, and the clogging phenomenon of the filtration filter does not occur, thereby reducing the maintenance cost.

1 is a system flow of the washing water chip filtration device capable of automatic backwashing of the present invention
Figure 2 is a side view of the washing water chip filtration apparatus capable of automatic backwashing of the present invention
3 is a plan view of the washing water chip filtration apparatus capable of automatic backwashing of the present invention
Figure 4 is a side photograph of the washing water chip filtration device capable of automatic backwashing of the present invention
5 is a plan view of the washing water chip filtration apparatus capable of automatic backwashing of the present invention
Figure 6 is a filter photograph of the washing water chip filtration device capable of automatic backwashing of the present invention

Dirty tank 700, clean tank 800, fluid pump 600, the first and second three-way automatic open and close valves (500, 510), the first and second two-way automatic open and close valves (520, 530), pressure sensor member ( In the wash water chip filtration device capable of automatic backwashing consisting of a cylindrical receiving body 100 having a built-in 300 and a filter 200, the contaminated washing water stored in the dirty tank 700 is the Receiving body through the sequence of the first inlet pipe 710, the first three-way automatic opening and closing valve 500, the main pipe 940, the second three-way automatic opening and closing valve 510, the first body piping (900) Is introduced into (100), the metal chip and sludge is filtered through a filter mounted inside the receiving body, the filtered wash water is inlet, outlet pipe 930 connected to the upper receiving body and the inflow, outflow After being discharged through the T-shaped pipe 920 connected to the pipe and the first discharge pipe 720 connected to the T-shaped pipe, the clean tank 800 passes through the pipe. Inflow, but clogging of the filter filtration hole occurs when the pressure rises in the receiving body is detected by the pressure sensor inside the pressure sensor member 300, and the controller is higher than the set value compared to the preset value Determination of the clogging of the filter filtration hole, it is characterized in that the back washing process is performed by sending an electrical signal to the automatic opening and closing valves to operate.

In addition, the automatic opening and closing valves of the reverse washing process, the first three-way automatic opening and closing valve 500 is operated by the electrical signal of the pressure sensor member 300 to the washing water of the clean tank 800 to the second inlet pipe 810. Flows into the second three-way automatic opening and closing valve 510 and is connected to the center of the first body pipe 900 is closed, the second body pipe 910 is opened, the washing water is the upper receiving body 100 Through the second body pipe 910, T-shaped pipe 920 and the inlet, outflow pipe 930 connected to the filter 200 is introduced into the filter, and the washing water introduced into the filter in the reverse direction of the normal filtration direction is Metal chips and sludge accumulated in the gap between the circular protrusions of the filter and the filtration hole of the filter are removed, and the first anisotropic automatic switching valve 520 is closed by the electrical signal of the pressure sensor member 300 and the second anisotropy. The automatic opening and closing valve 530 is opened and dirty via the second discharge pipe 820. Is connected to the network (700) characterized in that the backwash process takes place.

The present invention will be described in detail with reference to the accompanying drawings. 1 is a side view of a washing water chip filtration device capable of automatic backwashing of the present invention, FIG. 2 is a plan view of a washing water chip filtration device capable of automatic backwashing of the present invention, and FIG. 3 is a washing water chip filtration capable of automatic backwashing of the present invention. System flow of the device, Figure 4 is a side view of the washing water chip filtration apparatus capable of automatic backwashing of the present invention, Figure 5 is a plan view of the washing water chip filtration device capable of automatic backwashing of the present invention, Figure 6 is the automatic of the present invention This is a filter picture of a backwashable water filtration chip filter.

     The present invention relates to a chip filtration device for washing with automatic backwashing, dirty tank 700, clean tank 800, fluid pump 600, a plurality of automatic opening and closing valves, pressure gauge 400, pressure sensor member 300, the filter 200 is built in a cylindrical filtration device and the pipe.

After metal processing, chips or various oils and impurities deposited on machinery or components are stored in the dirty tank 700 along with the washing water through a washing process, and an oil film is formed on the upper washing water layer of the dirty tank, and the fine metal chips are formed in the dirty tank. It will settle to the bottom.

The washing water stored in the dirty tank 700 is the first inlet pipe 710, the first three-way automatic opening and closing valve 500, the main pipe 940, the second three-way automatic at a high flow rate by the drive of the fluid pump 600 The on / off valve 510 and the first body pipe 900 are introduced into the accommodating body 100, and the metallic chip and the sludge are filtered by a filter mounted inside the accommodating body.

The filtered wash water is stored in the clean tank 800 through the first anisotropic automatic opening / closing valve 520 and the first discharge pipe 720 to be recycled.

At this time, as shown in the system flow of the chip filtration device of Figure 3, looking at the pipe connection structure of the washing water filtration process, the first inlet pipe 710 connected to the dirty tank 700 is the first three-way automatic opening and closing valve 500 The fluid pump 600 and the main pipe 940 are connected to each other, and the pipe passed through the fluid pump and the main pipe is connected to the receiving body 100 through the second three-way automatic opening and closing valve 510 and the first body pipe 900. It is connected to the center of the side, and connected to the first anisotropic automatic opening and closing valve 520 through the inlet, outlet pipe 930 connected to the upper portion of the receiving body, the first discharge pipe 720 connected to the first anisotropic automatic opening and closing valve ) Is connected to the clean tank (800).

In addition, the pipe is fixedly mounted on the bottom of the lower frame, the pipe is formed between the fluid pump 600 and the second three-way automatic opening and closing valve 510 a pressure sensor section is formed at a position higher than the receiving body, the pressure sensor The pressure gauge 400 and the pressure sensor member 300 is installed in the upper section.

The accommodating body 100 is a cylindrical chamber, and is formed of a material having high corrosion resistance such as stainless steel, and the accommodating body is composed of an upper cover, a supporting leg, and a plurality of bolts and nuts.

In addition, the upper cover protrudes outward in the horizontal direction along the outer circumferential surface of the upper end of the receiving body 100, a plurality of fastening holes for fastening with the receiving body is formed on the outer side of the upper cover and the receiving body and the fastening of the bolt and nut The upper cover is coupled to maintain airtightness, and a plurality of support legs are formed to be spaced apart from the outside of the lower portion of the receiving body.

  In addition, the first main body pipe 900 is connected to the washing water flows into the center of the side of the receiving body 100, the inlet, outflow pipe 930 through which the filtered washing water flows to the upper portion of the receiving body 100 And the first discharge pipe 720 is connected, the lower portion of the receiving body 100 is connected to the second discharge pipe 820 for discharging the wash water containing the metallic chip and foreign matter removed in the back washing process.

In addition, the receiving body 100 is a cylindrical chamber, the filter is fixedly mounted in the inner center, the filter 200 has a cylindrical shape smaller than the receiving body is blocked in the lower portion and the upper portion is formed with a circular hole 210 The inlet and outlet pipe 930 is coupled to the circular hole.

     Therefore, the washing liquid introduced while being filtered from the outside of the filter 200 to the inlet and outlet pipes 930 connected to the upper part of the receiving body and to the T-type pipe 920 and the T-type pipe connected to the inlet and outlet pipes. After being discharged through the first discharge pipe 720 connected, it is introduced into the clean tank 800 through the pipeline.

In addition, the filter 200 has a structure in which fine chips or sludge does not pass because the fine wire mesh is woven in layers, and the circular protrusion 220 is formed on the outer side of the filter cylinder, thereby forming the circular protrusion 220. Chips and sludge are easily filtered through the gaps, and the filtration area is widened to allow the washing water to pass through well.

As described above, a clogging phenomenon occurs in the filter filtration hole, and as time passes, the pressure increases in the receiving body 100, and the elevated pressure is detected by a pressure sensor inside the pressure sensor member 300. 400) is raised.

When the pressure gauge 400 rises above a certain value, the controller inside the pressure sensor member 300 is compared with a preset setting value, and when the pressure gauge 400 is higher than the preset value, it is determined as a clogging phenomenon of the filter filtration hole, and thus an electrical signal is generated. By sending it back to a number of automatic opening and closing valves, a backwash process occurs. Since the pressure sensor and the pressure gauge are to be purchased and installed that are commonly used in the art, detailed descriptions are omitted.

In addition, the automatic opening and closing valve is an electric actuator that is opened and closed remotely by embedding an electrically operated solenoid, the automatic opening and closing is made by a remote signal operation from the pressure sense member (300).

At this time, in the back washing operation, the first three-way automatic opening and closing valve 500 is operated by the electrical signal of the pressure sensor member 300 to flow the washing water of the clean tank 800 into the second inlet pipe 810, 2 Since the three-way automatic opening and closing valve 510 operates and the first body pipe 900 connected to the center is closed and the second body pipe 910 is opened, the washing water is connected to the upper portion of the receiving body 100. The filter 200 is introduced into the filter 200 through the pipe 910, the T-shaped pipe 920, and the inflow and outflow pipe 930.

In addition, the washing water introduced into the filter in the reverse direction of the normal filtration direction removes metallic chips and sludge accumulated in the gap between the circular protrusions 220 of the filter 200 and the filtration holes of the filter, and the pressure sensor member 300. The first anisotropic automatic opening and closing valve 520 is closed by the electrical signal of the), the second anisotropic automatic opening and closing valve 530 is opened and connected to the dirty tank 700 via the second discharge pipe 820 and backwashed. The process takes place.

 At this time, as shown in the chip filtration device flow system of Figure 3, looking at the pipe connection structure of the back washing process of the washing water, the second inlet pipe 810, the first three-way automatic opening and closing valve 500, the second three-way automatic Opening and closing valve 510, the second body pipe 910, T-shaped pipe 920, inlet, outflow pipe 930 in order to wash water flows into the cylindrical filter 200.

In addition, the fine metal chips and the foreign substances filtered by the filter filtration holes are backwashed by the washing water introduced into the filter, and the pipe and the second anisotropic automatic opening / closing valve 530 and the second discharge pipe 820 are disposed below the receiving body. It is discharged to the dirty tank 700 via).

Then, when the pressure gauge 400 of the pressure connection section falls below the set value, the pressure sensor member 300 provides an electrical signal to the automatic open / close valves, thereby restarting the normal chip filtration process.

Therefore, the present invention is a chip filtration device for washing water having an automatic backwash function to automatically remove the filter clogging by flowing the washing water in the reverse direction by the operation of a plurality of automatic opening and closing valves, compared to a conventional filtration device capable of backwashing Consisting of a simple structure, the failure rate is low, manufacturing cost is low, and there is a remarkable effect of reducing the maintenance cost because clogging of the filtration filter does not occur.

100: receiving body 200: filter
210: cylindrical hole 220: circular protrusion
300: pressure sensor member 400: pressure gauge
500: first three-way automatic open valve 510: second three-way automatic open valve
520: 2nd automatic opening and closing valve 530: 2nd automatic opening and closing valve
600: fluid pump 700: dirty tank
710: first inlet pipe 720: first discharge pipe
800: clean tank 810: second inlet pipe
820: second discharge pipe 900: first body pipe
910: second body piping 920: T-shaped piping
930: inflow and outflow pipe 940: main pipe
950: lower frame

Claims (2)

Dirty tank 700, clean tank 800, fluid pump 600, the first and second three-way automatic open and close valves (500, 510), the first and second two-way automatic open and close valves (520, 530), pressure sensor member ( In the wash water chip filtration device capable of automatic backwashing consisting of a cylindrical receiving body 100 having a built-in 300 and a filter 200, the contaminated washing water stored in the dirty tank 700 is the Receiving body through the sequence of the first inlet pipe 710, the first three-way automatic opening and closing valve 500, the main pipe 940, the second three-way automatic opening and closing valve 510, the first body piping (900) Is introduced into (100), the metal chip and sludge is filtered through a filter mounted inside the receiving body, the filtered wash water is inlet, outlet pipe 930 connected to the upper receiving body and the inflow, outflow After being discharged through the T-shaped pipe 920 connected to the pipe and the first discharge pipe 720 connected to the T-shaped pipe, the clean tank 800 passes through the pipe. Doedoe inlet,
If a clogging phenomenon occurs in the filter filtration hole and the pressure rises in the receiving body, the pressure sensor inside the pressure sensor member 300 detects this, and the controller compares it with a preset setting value, if the filter filtration hole is higher than the setting value. Determination of the clogging of the, by sending an electrical signal to the automatic opening and closing valves by operating, the backwash process is possible washing water chip filtering device, characterized in that the backwashing process is made According to claim 1, wherein the automatic opening and closing valves of the backwashing process, the first three-way automatic opening and closing valve 500 is operated by the electrical signal of the pressure sensor member 300 to the second inflow of the wash water of the clean tank (800) Into the pipe 810, the second three-way automatic opening and closing valve 510 is connected to the center of the first body pipe 900 is closed, the second body pipe 910 is open, the washing water is the receiving body 100 is introduced into the filter 200 through the second body pipe 910, the T-shaped pipe 920 and the inflow, outflow pipe 930 connected to the upper portion, and also into the filter in the opposite direction to the normal filtration direction. The introduced washing water removes metallic chips and sludge accumulated between the circular protrusion gaps of the filter and the filter holes of the filter, and the first anisotropic automatic switching valve 520 is closed by an electrical signal of the pressure sensor member 300. , The second two-way automatic opening and closing valve 530 is opened to the second discharge pipe 820 Hit automatic backwashing possible chip wash water filtration device, characterized in that the connection is made of backwash process in the dirty tank (700)

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