WO2009136448A9

WO2009136448A9 - Cleaning mechanism of water circuit and filtering device used in cleaning mechanism

Info

Publication number: WO2009136448A9
Application number: PCT/JP2008/058889
Authority: WO
Inventors: 幸男梶野
Original assignee: Kajino Yukio
Priority date: 2008-05-07
Filing date: 2008-05-07
Publication date: 2011-06-03
Also published as: JP4303779B1; JPWO2009136448A1; WO2009136448A1

Abstract

A purification circuit for introducing water into a filtering device from a water storage unit via a pump and a first switching valve and circulating the water purified by the filtering device to the water storage unit via a second switching valve (5) is provided. A water supply pipeline is provided from a water supply source to the purification circuit via an open/close valve. A circuit for forming a backwash circuit is provided between the first switching valve and the second switching valve of the purification circuit. A first aeration cleaning circuit is connected to the lower portion of the filtering device via an open/close valve, and a second aeration cleaning circuit is connected from the water supply source to a pipeline on the upstream side of the pump of the purification circuit via a third switching valve. A compressed air supply means is connected to the first aeration cleaning circuit and the second aeration cleaning circuit via open/close valves, respectively. The filtering device includes a rotary cleaning frame which rotates positively/negatively by the pressure of water flow in the backwash circuit to eliminate clogging of a filter.

Description

Water circuit cleaning mechanism and filter used in this cleaning mechanism

The present invention relates to a water circuit cleaning mechanism for purifying and supplying water via a filter, and a filter used in this cleaning mechanism.

The water circuit cleaning mechanism that purifies the water passed from the water storage unit while circulating it using a filter is widely used to purify water in a water tank, 24-hour bath, pool, lake, etc. .
As a cleaning mechanism for these water circuits, for example, as shown in Japanese Patent Application Laid-Open No. 11-114327, there is also known a system equipped with a back-washing circuit for cleaning back-flowing cleaning water.
JP 11-114327 A

In the pipe cleaning of the water flow circuit, it is difficult to sufficiently wash away stubborn dirt such as scale adhering to the inner surface of the pipe only by flowing water back into the pipe.
In addition, in a water circuit that circulates water with a pump that supplies water only in one direction, it is difficult to back-wash the entire pipeline, and in particular, the pipeline from the water storage unit to the pump can continue to be used without being back-washed. Therefore, the fact is that the cleaning effect is impaired by the contamination of this portion.
A first object of the present invention is to open various cleaning circuits by switching control of a plurality of switching valves and on-off valves, and in particular, by feeding agitated explosive water mixed with compressed gas, An object of the present invention is to provide a water circuit cleaning mechanism capable of efficiently cleaning water scales in water pipes and filters.
In addition to the above cleaning mechanism, the second object of the present invention is to further rotate the rotating cleaning frame forward and backward with the water flow pressure of the backflow water while allowing the water in the water circuit to flow back into the filter. It is an object of the present invention to provide a cleaning mechanism capable of cleaning while adhering clogging on the mesh filter surface of the mesh filter with a brush.
A third object of the present invention is to provide a filter suitable for the above cleaning mechanism.

In order to achieve the first object, the cleaning mechanism of the present invention introduces water from the water storage section through the pump and the first switching valve to the inside through the upper opening of the filter and purifies the water with the filter. A purification circuit for supplying water from the lower opening to the water storage section via the second switching valve; a water supply line for supplying source water from the water supply source to the purification circuit or the water storage section via the on-off valve; Connected between the first switching valve and the second switching valve, and by switching the flow path of the first switching valve and the second switching valve, water supplied from the water storage section is passed through the lower switching valve through the second switching valve. A backwashing circuit that flows back into the upper outlet of the filter and discharges it to the upper drainage pipe through the first switching valve; and a second flush circuit that communicates with the lower inner side of the filter through an on-off valve. 1 explosion cleaning circuit; second explosion cleaning connected from the water supply source to the upstream side of the purification circuit pump via a third switching valve Characterized by comprising; road and; said first aeration cleaning circuit and compressed air supply means connected via a respective closing valve to the second aeration cleaning circuit.
In order to achieve the second object, the cleaning mechanism of the present invention introduces water from the upper part of the filter into the inside through the pump and the first switching valve from the water storage part, and purifies the water with the filter. A purification circuit for supplying water from the lower opening to the water storage section via the second switching valve; a water supply line for supplying source water from the water supply source to the purification circuit via the on-off valve; and a first switching of the purification circuit Connected between the valve and the second switching valve, and by switching the flow path of the first switching valve and the second switching valve, the water supplied from the water storage section is introduced into the lower opening of the filter through the second switching valve. A backwashing circuit that flows back to the upper opening of the filter and discharges it to the upper drainage pipe through the first switching valve; and a first explosion that communicates with the lower inner side of the filter through an on-off valve A cleaning circuit; a second explosion cleaning circuit 4 connected via a third switching valve from the water supply source to the pump upstream side of the purification circuit; Compressed air supply means connected to the first explosion cleaning circuit and the second explosion cleaning circuit via an on-off valve, respectively, and the filter communicates with the first switching valve. A casing having a lower opening communicating with the second switching valve; a filtration filter in the casing fixed in a casing transverse direction between the upper passage and the lower opening; and the filtration filter A rotating shaft supported through the center of the casing so as to be rotatable in the vertical direction in the casing; and a rotary washing frame body fixed to the rotating shaft above the filtration filter and having a brush contacting the filtration filter on the lower surface A rotary vane member fixed to the rotary shaft below the filter, and a branch from the inlet side pipe to the filter constituting the backwash circuit, and the rotary vane member in the casing via the switching valve. Piped nearby The flow channel switching of the switching valve, a positive or a rotating blade member is opposite pair of water pipes to supply the rotation drive hydraulic; characterized by comprising a.
Preferably, in the cleaning mechanism of the present invention, in the water circuit, the first switching valve, the second switching valve, the third switching valve, the opening / closing valve of the water supply line, and the opening / closing valve of the first explosion cleaning circuit are electrically driven. These motor-operated valves are configured to automatically open the purification circuit, the reverse circuit, or the first explosion cleaning circuit and the second explosion cleaning circuit by a control signal.
In order to achieve the third object, a filter used in the cleaning mechanism of the present invention includes a casing having an upper opening and a lower opening; and is in the casing, between the upper opening and the lower opening. A filtration filter fixed in a transverse direction of the casing; a rotation shaft rotatably supported through the center of the filtration filter; fixed to the rotation shaft above the filtration filter and in contact with the filtration filter on the lower surface A rotary cleaning frame having brushes implanted therein; a rotary vane member fixed to the rotary shaft below the filter; and a switching valve branched from the inlet side pipe to the filter constituting the backwash circuit A pair of left and right water distribution pipes that are piped in the vicinity of the rotary blade member in the casing and that supply forward or reverse rotational drive hydraulic power to the rotary blade member by switching the flow path of the switching valve. It is characterized by.

Since the present invention is configured as described above, (1) in addition to a normal purification circuit that circulates water in a water storage section through a filter, (2) in a water circuit that supplies water only in a one-way tank, the water supply circuit in the water storage section A backwashing circuit for backflowing the filter by switching between, (3) an explosive cleaning circuit for backwashing by blowing compressed air into the backflow water in the filter of this backwashing circuit, and (4) a normal purifying water flow circuit , And blowing compressed air from below the filter to clean the pipeline from the filter to the water reservoir, and (5) supplying compressed air to the pump upstream side of the water supply pipeline It is possible to selectively open an explosion backwashing circuit that backflows and pumps the blown water to backwash the water supply pipe to the water storage section.
By configuring the water circuit switching valve (three-way valve) and on / off valve with a solenoid valve that operates in response to a signal, these motorized valves are automatically controlled so that each cleaning circuit can be opened with one-touch operation using a signal from the controller. can do.
Since the filter of the water supply circuit is configured as described above, the rotating cleaning frame body above the filter is rotated forward and backward by the water flow pressure of the backwash water, and the filter is clogged with the brush of the rotating cleaning frame. It is possible to efficiently wash away the scraped impurities.

Basic schematic configuration diagram of water circuit cleaning mechanism according to the present invention Circuit diagram for normal purification Circuit diagram during backwashing of filter Circuit diagram for backwashing of filter explosion Explosive cleaning circuit diagram of the downstream pipe line from the filter Explosive backwash circuit diagram of pump upstream line It is a schematic block diagram which shows one Example of the filter used for a water circuit washing | cleaning mechanism, Comprising: Water purification circuit explanatory drawing It is a schematic block diagram which shows one Example of the filter used for a water circuit washing | cleaning mechanism, Comprising: Backwashing circuit explanatory drawing Cross section of filtration filter Bottom view of filter FIG. 8 is a lower cross-sectional view of a filter according to the embodiment of FIG.

Explanation of symbols

[0014] 1 ... Water storage unit 2 ... Pump 3 ... First switching valve 4 ... Filter 4a ... Upper port 4b ... Lower port 5 ... Second switching valve 6 ... Purification circuit 6a ... Water supply line 6b ... Purified water line DESCRIPTION OF SYMBOLS 7 ... Water supply source 8 ... On-off valve 9 ... Water supply pipe 10 ... Backwash circuit 10a ... Drain pipe 10 '... Pipe line 11 ... Open / close valve 12 ... First explosion cleaning circuit 13 ... Third switching valve 14 ... Second explosion Cleaning circuit 15 ... Open / close valve 16 ... Compressed air supply means 17 ... Casing 18 ... Filtration filter 18a ... Net body 18b ... Filter cloth 19 ... Rotating shaft 20 ... Base frame 21 ... Support frame 21 '... Support sleeve 22 ... Brush 23 ... Rotation Cleaning frame body 24 ... Rotary blade member 25 ...

Switching valve

26a, 26b ... Water distribution pipe 27 ... Check valve 28 ... Open / close valve 29 ... Drain 30 ... Open / close valve 31 ... Catcher 32 ... Open / close valve

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 shows a basic configuration of a water circuit having a cleaning mechanism according to the present invention, and a purification circuit for purifying water pumped from a water storage unit 1 through a pump 2 and circulating it to the water storage unit 1. 6 is provided.
The purification circuit 6 includes a water supply line 6a for pumping water from the water storage unit 1 to the upper passage 4a of the filter 4 via the pump 2 and the first switching valve (three-way valve) 3, and the introduced water. The filter 4 to be purified and the purified water line 6b for circulating the purified water purified by the filter 4 from the lower passage 4b of the filter 4 to the water storage unit 1 through the second switching valve (three-way valve) 5 It is configured.
In the figure, reference numeral 31 denotes a catcher that removes coarse dust of water in running water.
An electromagnetic water supply pipe 9 is connected from the water supply source 7 to the water purification pipe line 6 b of the purification circuit 6. The water supply pipe 9 is provided with an opening / closing valve 8, and when the opening / closing valve 8 is opened as necessary, the source water is supplied from the water supply source 7 to the water purification pipe 6 b and is supplied to the water storage unit 1. ing.
Between the water supply pipeline 6a downstream of the pump 2 of the purification circuit 6 connected to the upper passage 4a of the filter 4 and the water purification pipeline 6b connected to the lower passage 4b of the filter 4, A backwash circuit 10 is piped through a second switching valve (three-way valve) 5, the water supply pipe 6 a is closed by the first switching valve 3, and the second switching valve 5 of the water purification pipe 6 b is backwashed. By opening from 10 to the lower passage 4 b side of the filter 4, a back-flow cleaning circuit is formed that pressure-feeds the pressure water flow in the purified water line 6 b from the lower part to the upper part of the filter 4.
On the other hand, an upper drain pipe 10 a of the filter 4 is connected to the first switching valve 3 communicating with the upper passage 4 a of the filter 4.
In the example of the figure, the pump 2 downstream side pipe of the water supply pipe 6a from the water storage section 1 is branched into a pipe leading to the first switching valve 3 and a pipe leading to the second switching valve 5. A pipe line 10 ′ leading to the second switching valve 5 is used as a water passage for opening the backwash circuit 10.
The bottom of the filter 4 is piped with a first explosion cleaning circuit 12 with an on-off valve 15 interposed. Preferably, a check valve 27 may be provided between the filter 4 and the on-off valve 15.
Generally, the bottom of the filter 4 has a drain pipe that leads to a drain 29 via another lower drain opening / closing valve 28. In this embodiment, the first explosion cleaning circuit 12 is connected to a drain pipe opening / closing valve. However, the present invention is not limited to this configuration and can be provided separately and independently.
A second explosion back washing circuit 14 branched from the upstream side of the on-off valve 8 of the water supply line 9 is connected to the water supply line 9 and the water supply line 6 a upstream of the pump 2 of the purification circuit 6 via the third switching valve 13. Are piped.
Since the second explosion backwash circuit 14 is a circuit that is used at a rate of once per relatively long time, when the on-off valve 8 of the water supply line 9 is constituted by an electric valve, Alternatively, a manual open / close valve 30 dedicated to the second explosion cleaning circuit 14 may be provided.
Since the water circuit of the present invention has the above-described configuration, as shown in FIG. 2, the third switching valve 13 of the water supply pipe 6a from the water storage section 1 is opened to the pump 2 side, and the water supply pipe downstream of the pump 2 By opening the first switching valve 3 of 6a to the upper passage 4a of the filter 4 and opening the second switching valve 5 from the lower passage 4b of the filter 4 to the water purification pipeline 6b, it is indicated by a continuous line arrow. Thus, the normal purification circuit 6 which filters the water sent from the water storage unit 1 in the process of passing from the upper side to the lower side of the filter 4 and circulates it from the water purification pipe line 6b to the water storage unit 1 is opened.
On the other hand, as shown in FIG. 3, the first switching valve 3 of the water supply pipe 6a is opened from the upper passage 4a of the filter 4 to the upper drain pipe 10a and switched to close the water supply pipe 6a. When the second switching valve 5 is switched so that the backwash circuit 10 branched from 6a opens (communicates) to the lower passage 4b side of the filter 4, the water supply pipe that is pumped from the water storage unit 1 via the pump 2 The water 6a is introduced into the filter 4 from the lower passage 4b of the filter 4 through the second switching valve 5 as shown by the dotted arrow, and flows back into the upper passage 4a of the filter 4 so that the water flows. A backwash circuit 10 for draining from the upper drain pipe 10a through the first switching valve 3 is opened.
Further, as shown in FIG. 4, when the on-off valve 11 of the first explosion cleaning circuit 12 is opened in the state of the backwashing circuit of FIG. 3, the first explosion cleaning is performed from the compressed air supply means 16 such as an air compressor. Compressed air is blown into the filter 4 through the circuit 12, mixed with the backflow water in the backwash circuit, sent to the upper side of the filter 4, and drained from the upper drain pipe 10a. Therefore, the inside of the filter 4 is cleaned by the backflow stirring action of the gas-liquid mixed fluid. (Refer to the dotted arrow and the one-dot chain arrow)
As shown in FIG. 5, in the normal purification circuit shown in FIG. 2, by blowing compressed air into the filter 4 through the first explosion cleaning circuit 12, the filter 4 as shown by a one-dot chain line. The purified water pipeline 6b (return circuit) from the inner lower part to the water storage part 1 is washed by the stirring action of the gas-liquid mixed fluid.
Further, as shown in FIG. 6, the third switching valve 13 of the water supply line 6 a is switched so that the second explosion cleaning circuit 14 communicates with the water storage unit 1, and the on-off valve 8 of the water supply pipe 9 is closed. When the compressed air from the compressed air supply means 16 is blown into the second explosion cleaning circuit 14 that supplies the water from the water supply source 7, the gas-liquid from the second explosion cleaning circuit 14 is indicated by a dashed line arrow. The mixed fluid flows backward to the water storage unit 1 via the third switching valve 13, and the water supply pipe 6a from the second switching valve 5 to the water storage unit 1 is washed by the backflow stirring action of the gas-liquid mixed fluid. When the second explosion cleaning circuit 14 is used to backwash the water supply line 6a from the third switching valve 13 of the water supply line 6a to the water storage unit 1 with the explosion backwashing, the pump 2 and other switching valves and on-off valves are It is inoperative.
The first switching valve 3, the second switching valve 5, the third switching valve 13, and the on-off

valves

8, 11, and 15 are preferably constituted by motorized valves that are actuated by signals from a control unit (not shown), Each circuit is opened by remote control by a signal from the control unit.
FIGS. 7 and 8 show a preferred embodiment of the filter 4 used in the water circuit cleaning mechanism according to the present invention. The casing 17 of the filter 4 is connected to the first switching valve 3 of the water circuit. And the lower switching port 6 connected to the second switching valve 6 through a pipe line and filtered in a direction transverse to the casing 17 between the upper opening 4a and the lower opening 4b. A filter 18 is fixed. It is preferable that the filter 18 has a structure in which a filter cloth 18b is integrally polymerized on the upper surface of a fine fine mesh body 18a.
The pipe line extending from the upper passage 4a into the filter 4 has the tip opening preferably arranged upward, and the water in the purification circuit blows upward in the filter 4 and is uniformly sprinkled on the surface of the filter 18. So that
A rotary shaft 19 extending vertically through the center of the filtration filter 18 is rotatably fixed to the base frame 20 and the support frame 21 in the filter 4 in the vertical direction inside the casing 17 and is filtered. A rotary cleaning frame body 23 is fixed to the distal end side of the rotary shaft 19 protruding upward from the filter 18.
The support frame 21 holds the filtration filter 18 horizontally with respect to the water pressure, and is composed of a radiation frame through which water can pass. In the illustrated embodiment, the filtration filter 18 is provided via a support sleeve 21 ′ through a rotating shaft 19. It is integrally coupled to the edge of 18 central through holes.
The rotary cleaning frame 23 has a brush 22 implanted under the radiation arm fixed to the rotary shaft 19, and is arranged so that the tip of the brush 22 is in contact with the upper surface of the filtration filter 18. ing.
The rotary shaft 19 has a rotary blade member 24 fixed to a shaft body below the filtration filter 18 and the support frame 21 so as to face the filtration filter 18 in parallel.
A pair of

water distribution pipes

26a and 26b branched from the outside of the casing 17 via a switching valve (three-way valve) 25 are liquid-tightly connected to the left and right of the rotary blade member 24 in the filter 4; As shown in FIG. 10, the ends of the pair of

water distribution pipes

26 a and 26 b are arranged so as to apply a rotational working water pressure from opposite directions to the rotary blade member 24.
The pair of

water distribution pipes

26 a and 26 b are connected via the switching valve 25 to a backwash water introduction pipe branched from a pipe constituting the backwash circuit of the water circuit.
As shown in the embodiment of FIG. 8, the pair of left and right

water distribution pipes

26 a and 26 b are communicated with the pipe line between the lower switching port 4 b of the filter 4 and the second switching valve 5, so that the filter 4 side introduction pipe of the backflow circuit is connected. In the case of using the filter, an electric on-off valve 32 is preferably provided in the vicinity of the lower passage 4b of the filter 4.
Thus, as shown in FIG. 8, the filter 4 used in the present invention uses the backflow water pressure at the time of opening the backwash circuit of the water circuit to rotate the rotating blade member 24 alternately forward and backward as indicated by a circular arrow. By reverse rotation, clogging of the upper surface of the filtration filter 18 is removed by the brush 22 of the rotary cleaning frame 23 that rotates forward and reverse. As a result, the inside of the filter 4 is efficiently cleaned by the forward / back stirring backflow water from the lower portion by the rotary blade member 24, and the impurities removed from the filter 18 are blown upward by the backflow cleaning water, Drained from the mouth 4a.
In addition to the embodiment of FIG. 8, as shown in FIG. 4, by sending compressed air from the first explosion cleaning circuit 12 below the filter 4, the inside of the filter 4 is backflowed by explosion, so the cleaning effect is Further improve.

The water circuit cleaning mechanism according to the present invention controls a plurality of switching valves and on-off valves to open various cleaning circuits, so that a water cleaning / purification system for 24-hour baths, industrial water tanks, lakes and the like can be used. It can be widely applied to.

Claims

Water is introduced from the water reservoir 1 through the pump 2 and the first switching valve 3 into the inside through the upper passage 4a of the filter 4, and the water purified by the filter 4 is passed through the lower passage 4b through the second switching valve 5. A purification circuit 6 for supplying water to the water storage section 1 through
A water supply line 9 for supplying source water from the water supply source 7 to the purification circuit 6 via the on-off valve 8;
The first switching valve 3 and the second switching valve 5 of the purification circuit 6 are connected between the first switching valve 3 and the second switching valve 5, and the water supplied from the water storage unit 1 is switched to the second by switching the flow path of the first switching valve 3 and the second switching valve 5. A backwash circuit 10 which is introduced into the lower passage 4b of the filter 4 via the valve 5 and flows backward to the upper passage 4a of the filter 4 and is discharged to the upper drain pipe 10a via the first switching valve 3; ;
A first explosion cleaning circuit 12 communicated with the inside of the lower part of the filter 4 via an on-off valve 11;
A second explosion cleaning circuit 14 connected from the water supply source 7 to the upstream line 6a of the pump 2 of the purification circuit 6 via a third switching valve 13;
Compressed air supply means 16 connected to the first explosion cleaning circuit 12 and the second explosion cleaning circuit 14 via on-off valves, respectively;
Water circuit cleaning mechanism characterized by comprising
Water is introduced from the water reservoir 1 through the pump 2 and the first switching valve 3 into the inside through the upper passage 4a of the filter 4, and the water purified by the filter 4 is passed through the lower passage 4b through the second switching valve 5. A purification circuit 6 for supplying water to the water storage section 1 through
A water supply line 9 for supplying source water from the water supply source 7 to the purification circuit 6 via the on-off valve 8;
The first switching valve 3 and the second switching valve 5 of the purification circuit 6 are connected between the first switching valve 3 and the second switching valve 5. A backwash circuit that passes water through the switching valve 5 to the lower passage 4b of the filter 4, flows back to the upper passage 4a of the filter 4 and discharges it to the upper drainage pipe 10a through the first switching valve 3. 10 and;
A first explosion cleaning circuit 12 communicated with the inside of the lower part of the filter 4 via an on-off valve 11;
A second explosion cleaning circuit 14 connected from the water supply source 7 to the upstream line 6a of the pump 2 of the purification circuit 6 via a third switching valve 13;
Compressed air supply means 16 connected to the first explosion cleaning circuit 12 and the second explosion cleaning circuit 14 via on-off valves, respectively;
The filter 4 includes a casing 17 having an upper passage 4a communicating with the first switching valve 3 and a lower passage 4b communicating with the second switching valve 5;
A filtration filter 18 in the casing 17 and fixed in the casing transverse direction between the upper passage 4a and the lower passage 4b;
A rotating shaft 19 that passes through the center of the filter 18 and is supported so as to be rotatable in the vertical direction in the casing 17;
A rotary cleaning frame 23 fixed to the rotary shaft 19 above the filter 18 and having a brush 22 in contact with the filter 18 on the lower surface;
A rotary blade member 24 fixed below the rotary shaft 19 below the filter 18 so as to face the filter 18;
It branches from the introduction side pipe line to the filter which comprises the said backwash circuit, is piped in the vicinity of the said rotary blade member 24 in a casing via the switching valve 25, and is rotated by the flow path switching of the said switching valve 25. A water circuit cleaning mechanism comprising: a pair of left and right water distribution pipes 26a and 26b for supplying forward or reverse rotational drive hydraulic power to the blade member 24;
A casing 17 having an upper opening 4a and a lower opening 4b;
A filtration filter 18 in the casing 17 and fixed in the casing transverse direction between the upper passage 4a and the lower passage 4b;
A rotating shaft 19 that is rotatably supported through the center of the filter 18;
A rotating cleaning frame 23 fixed to the rotary shaft 19 above the filter and having a brush 22 in contact with the filter 18 on the lower surface;
A rotary blade member 24 fixed to the lower part of the rotary shaft 19 below the filter and facing the filter 18;
It branches from the introduction side pipe line to the filter which comprises the said backwash circuit, is piped in the vicinity of the said rotary blade member 24 in a casing via the switching valve 25, and is rotated by the flow path switching of the said switching valve 25. And a pair of left and right water distribution pipes 26a, 26b for supplying forward or reverse rotational drive hydraulic power to the blade member 24.