Secondary filter screen control device for condenser circulating water pipe and operation method thereof
Technical Field
The invention relates to the technical field of condensers, in particular to a condenser circulating water pipe secondary filter screen control device and an operation method thereof.
Background
The condenser is a heat exchanger for condensing steam discharged by a steam turbine into water, is also called a water re-circulating device, is mainly used in a power device of the steam turbine, and is divided into a water-cooling condenser and an air-cooling condenser. The condenser can not only condense the exhaust steam of the steam turbine into water for reuse by the boiler, but also establish vacuum and maintain vacuum at the exhaust steam of the steam turbine. The different condensers according to the steam condensing mode can be divided into two types, namely a surface type (also called a dividing wall type) and a mixed type (also called a contact type). In the surface condenser, steam separated from a cooling medium is condensed into a liquid on a cooling wall surface (typically, a metal pipe). The cooling medium may be water or air. The water-cooled surface condenser is divided into a single-process flow and a double-process flow according to the flowing mode of cooling water. In the hybrid condenser, the steam is condensed into a liquid when mixed with the cooling medium, and the condensed steam may be steam or vapor of other substances.
The condensate water flowing in the circulating water pipe of the existing condenser sometimes has impurities, so that a filtering structure is required to be added for filtering, a filter screen is generally arranged, but after long-time filtering and purifying, the surface of the filter screen is blocked, the filtering and purifying effect can be further affected, a pipeline can be blocked when serious, the flow of water is affected, the pipeline is generally closed temporarily by the existing cleaning measures, the pipeline is detached for cleaning, and the working efficiency is relatively troublesome and affected.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a condenser circulating water pipe secondary filter screen control device and an operation method thereof, which solve the problems that after long-time filtration and purification, the surface of a filter screen is blocked, the effect of filtration and purification is further affected, a pipeline is blocked when serious, the flow of water is affected, the pipeline is generally closed temporarily by the existing cleaning measures, the pipeline is detached for cleaning, and the working efficiency is relatively troublesome and is affected.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: the utility model provides a condenser circulating water pipe secondary filter screen controlling means, includes control box, inlet tube and outlet pipe, the right side fixedly connected with pencil pipe of control box, and the equal fixedly connected with cartridge filter of front and back both sides of pencil pipe, the relative one end of inlet tube and outlet pipe communicates respectively has first three-way pipe and second three-way pipe, the both ends of first three-way pipe all communicate there is the shunt tubes that intakes, two the right-hand member of shunt tubes that intakes communicates respectively has first manometer and second manometer, two the left and right sides of cartridge filter is first solenoid valve and second solenoid valve fixedly connected with respectively, the left side of first solenoid valve and second solenoid valve communicates with the right side of first manometer and second manometer respectively through the connecting pipe, two the intercommunication has the dirt flushing pipe between the top of cartridge filter, the drain has been seted up to the bottom of cartridge filter, the outside fixedly connected with collecting pipe that is located the drain in drain, and the bottom intercommunication of collecting pipe has the drain, two through the third solenoid valve between the drain.
The inside rotation of cartridge filter is connected with the filter frame, and the equal fixedly connected with filter screen in the left and right sides of filter frame, the top fixedly connected with cross frame of filter frame, the top fixedly connected with step motor of cartridge filter, the bottom of step motor output shaft runs through the top of cartridge filter and with the center fixed connection of filter frame, the inside of cartridge filter just is located the equal fixedly connected with wire brush in the inside and outside both sides of filter frame.
Preferably, the wire brush comprises a hard wire brush and a soft wire brush, and the hard wire brush and the soft wire brush are respectively arranged on the front side and the rear side of the inner cavity of the filter cylinder.
Preferably, the right sides of the first electromagnetic valve and the second electromagnetic valve are respectively communicated with a water outlet shunt pipe, and the right ends of the two water outlet shunt pipes are respectively communicated with the two ends of the second three-way pipe.
Preferably, the top intercommunication of second three-way pipe has transparent observation tube, the inside sliding connection of transparent observation tube has clean piston, and the top fixedly connected with of clean piston promotes the cover, the top of promoting the cover runs through the top of transparent observation tube and extends to the top of transparent observation tube, and promotes the top threaded connection of cover and have the detachable depression bar, the surface of promoting the cover just is located the top fixedly connected with oval stopper of transparent observation tube, and the top of transparent observation tube offered the oval hole with oval stopper looks adaptation.
Preferably, the upper and lower both sides of control box and pencil pipe and the upper and lower both sides of first three-way pipe and second three-way pipe are all through screw fixedly connected with fixed plate, all through mount fixed connection between the surface of control box and pencil pipe and the surface of connecting pipe and play water shunt tubes, the cartridge filter is close to the upper and lower both sides of pencil pipe one side and all fixedly connected with fixing base, and all through bolt fixed connection between the upper and lower both sides of fixing base and pencil pipe.
Preferably, both sides respectively through-connection have warning light and bee calling organ around control box top left, the bottom of control box inner chamber from left to right fixedly connected with wireless signal transceiver and battery in proper order, the bottom through-connection on control box right side has the port that charges, the bottom of control box internal surface just is located the top of battery and passes through screw post fixedly connected with circuit board, the right side through-connection on control box top has operating panel, operating panel's top has from left to right set gradually display screen, pilot lamp and start button.
Preferably, the output end of the circuit board is electrically connected with the output ends of the stepping motor, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the warning lamp and the buzzer respectively through wires, the operation panel and the wireless signal transceiver are both in bidirectional connection with the circuit board through wires, the output end of the charging port is electrically connected with the input end of the storage battery through wires, and the output end of the storage battery is electrically connected with the input end of the circuit board through wires.
Preferably, the circuit board comprises a processor and a pressure detection system, the pressure detection system further comprises a data comparison module and a signal feedback module, the output ends of the signal feedback module, the first pressure gauge and the second pressure gauge are electrically connected with the input end of the processor through wires, the output end of the processor is electrically connected with the input end of the data comparison module through wires, and the output end of the data comparison module is electrically connected with the input end of the signal feedback module through wires.
The invention also discloses an operation method of the condenser circulating water pipe secondary filter screen control device, which comprises the following steps:
step one: during normal operation, circulating water enters from the water inlet pipe, flows into one water inlet split pipe which is communicated through the first three-way pipe { a water inlet split pipe at the upper side }, flows through the water inlet split pipe, the first pressure gauge, the connecting pipe, the first electromagnetic valve at the left side, the filter cartridge, the first electromagnetic valve at the right side, the water outlet split pipe and the second three-way pipe until the water outlet pipe is discharged, water can be filtered twice by a filter screen in the filter cartridge when passing through the filter cartridge, part of water is flushed into the transparent observation pipe when the water is discharged, and a worker can judge whether the filter screen needs to be cleaned or not by observing the cleanliness of the water in the transparent observation pipe;
step two: when the filter screen needs to be cleaned, a worker can close the two first electromagnetic valves by pressing a starting button, simultaneously open the two second electromagnetic valves, open a third electromagnetic valve on the corresponding side of the first electromagnetic valve, at the moment, circulating water is led into a water inlet shunt pipe on the lower side, a stepping motor drives a filter frame and the filter screen to rotate through a cross frame, a steel wire brush is utilized to brush dirt on the surface of the filter screen, meanwhile, water in the other filter cartridge enters the filter cartridge through a dirt-passing pipe, the brushed dirt is flushed into a collecting pipe through a dirt-discharging groove, then the dirt-discharging pipe is flushed away, and the third electromagnetic valve is closed after cleaning is finished;
step three: when no staff checks, the first pressure gauge and the second pressure gauge detect the water pressure in the water inlet shunt pipe in real time and feed the numerical value back to the processor, the processor compares the numerical value input data in the comparison module, when the numerical value exceeds the standard, the signal feedback module feeds back the result to the processor, the processor automatically controls corresponding electronic devices to work according to the step II, the pipeline is dredged, when the equipment fails and cannot be dredged, the water pressure continuously increases to a dangerous value, the warning lamp flashes to warn, the buzzer sounds to warn, and the wireless signal transceiver sends a remote signal to inform workers of previous maintenance;
step four: when the transparent observation tube is used for a long time and the water scale is attached to the inner wall of the transparent observation tube, a worker needs to take out the detachable pressing rod, screw the pressing sleeve on the top end of the detachable pressing rod, rotate the pressing sleeve to enable the elliptical limiting block to rotate to an angle matched with the elliptical hole, then press the pressing rod downwards, push the water scale out by using the cleaning piston, finally pull the cleaning piston and the pressing sleeve back to the original position, detach the detachable pressing rod, and rotate the elliptical limiting block to an angle staggered with the elliptical hole again.
Preferably, in the second step, a right end of a third tee pipe connected with the sewage discharge pipe needs to be connected with a pipeline to discharge sewage into the container.
(III) beneficial effects
The invention provides a condenser circulating water pipe secondary filter screen control device and an operation method thereof. Compared with the prior art, the method has the following beneficial effects:
(1) This condenser circulating water pipe secondary filter screen controlling means and operation method thereof, through the right side fixedly connected with pencil pipe at the control box, and the equal fixedly connected with cartridge filter of front and back both sides of pencil pipe, the relative one end of inlet tube and outlet pipe communicates respectively has first three-way pipe and second three-way pipe, the both ends of first three-way pipe all communicate and have the water inlet shunt tubes, the right-hand member of two water inlet shunt tubes communicates respectively has first manometer and second manometer, the left and right sides of two cartridge filter is fixedly connected with first solenoid valve and second solenoid valve respectively, the left side of first solenoid valve and second solenoid valve is through the connecting pipe respectively with the right side intercommunication of first manometer and second manometer, the intercommunication has the dirt flushing pipe between the tops of two cartridge filter, the dirt discharging groove has been seted up to the bottom of cartridge filter, the outside fixedly connected with collecting pipe that just is located the dirt discharging groove, and the bottom intercommunication of collecting pipe has the dirt discharging pipe, through the third three-way pipe intercommunication between two dirt discharging pipes, and the surface fixedly connected with third solenoid valve of dirt discharging pipe, through setting up two water inlet shunt tubes, make rivers have two alternative flow channels, wherein the water channel can be passed through the connecting pipe in turn, and the water channel can be cleared up to another channel when the other one side, and the other water channel can be washed out, and the other water channel can be conveniently and the other channel can be washed out, and the progress is not normally, and can be conveniently cleared up.
(2) According to the condenser circulating water pipe secondary filter screen control device and the operation method thereof, the filter frame is connected in the filter cartridge in a rotating mode, the filter screens are fixedly connected to the left side and the right side of the filter frame, the top of the filter frame is fixedly connected with the cross frame, the top of the filter cartridge is fixedly connected with the stepping motor, the bottom end of an output shaft of the stepping motor penetrates through the top of the filter cartridge and is fixedly connected with the center of the filter frame, the steel wire brushes are fixedly connected to the inner side and the outer side of the filter cartridge and are positioned on the inner side and the outer side of the filter frame, the steel wire brushes comprise the hard steel wire brush and the soft steel wire brush, the hard steel wire brush and the soft steel wire brush are respectively arranged on the front side and the outer side of an inner cavity of the filter cartridge, two layers of filter screens are arranged in the filter cartridge, circulating water can be filtered twice, cleaning of water is guaranteed, the filter frame is driven to rotate by the stepping motor, the steel wire brushes are matched with the steel wire brushes to be set into two specifications of soft and hard, the filter screens can be cleaned conveniently and thoroughly, manual removal is omitted, and working efficiency is improved.
(3) According to the condenser circulating water pipe secondary filter screen control device and the operation method thereof, the transparent observation pipe is communicated with the top of the second three-way pipe, the cleaning piston is connected to the inside of the transparent observation pipe in a sliding mode, the pushing sleeve is fixedly connected to the top of the cleaning piston, the top end of the pushing sleeve penetrates through the top end of the transparent observation pipe and extends to the upper side of the transparent observation pipe, the detachable pressing rod is connected to the top end of the pushing sleeve in a threaded mode, the oval limiting block is fixedly connected to the surface of the pushing sleeve and located above the transparent observation pipe, an oval hole matched with the oval limiting block is formed in the top end of the transparent observation pipe, the filtered circulating water guiding part can enter the transparent observation pipe through the transparent observation pipe, whether obvious impurities are contained in water or not can be seen, the filtering effect can be judged, the filtering effect can be conveniently achieved, the filter screen can be cleaned through the detachable pressing rod, the pushing sleeve and the cleaning piston, the inner wall of the transparent observation pipe can be cleaned, the transparency of the transparent observation pipe can be maintained, and the condenser circulating water pipe control device is simple and practical.
(4) According to the condenser circulating water pipe secondary filter screen control device and the operation method thereof, the output end of the circuit board is electrically connected with the output ends of the stepping motor, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the warning lamp and the buzzer respectively through wires, the operation panel and the wireless signal transceiver are in bidirectional connection with the circuit board through wires, the output end of the charging port is electrically connected with the input end of the storage battery through wires, the output end of the storage battery is electrically connected with the input end of the circuit board through wires, the circuit board comprises a processor and a pressure detection system, the pressure detection system further comprises a data comparison module and a signal feedback module, the output ends of the signal feedback module, the first pressure gauge and the second pressure gauge are electrically connected with the input end of the processor through wires, the output end of the data comparison module is electrically connected with the input end of the signal feedback module through wires, the first pressure gauge and the second pressure gauge can detect water pressure in two water inlet shunt pipes, further can be identified and warned when the storage battery is blocked, and further automatically cleaned when the storage battery is blocked, if the storage battery is in a high-pressure state, and the storage battery is in a long-time calling state can be guaranteed, and a normal working state can be guaranteed when a person is in front of the device is repaired due to a long-time.
Drawings
FIG. 1 is a top view of the structure of the present invention;
FIG. 2 is a top view of the internal structure of the junction filter cartridge of the present invention;
FIG. 3 is a perspective view of a filter frame and cross frame structure of the present invention;
FIG. 4 is a top view of a filter cartridge and collection tube of the present invention;
FIG. 5 is a cross-sectional view of a transparent viewing tube of the present invention;
FIG. 6 is a top view of a transparent viewing tube of the present invention;
FIG. 7 is a cross-sectional view of the control box of the present invention;
FIG. 8 is a top view of the operator panel of the present invention;
FIG. 9 is a system schematic block diagram of the present invention;
fig. 10 is a schematic block diagram of the circuit board and pressure gauge of the present invention.
In the figure, the control box 1-, the water inlet pipe 2-, the water outlet pipe 3-, the wire harness pipe 4-, the filter cartridge 5-, the first three-way pipe 6-, the second three-way pipe 7-, the water inlet shunt pipe 8-, the first pressure gauge 9-, the second pressure gauge 10-, the first electromagnetic valve 11-, the second electromagnetic valve 12-13-connecting pipe 14-flushing the dirt pipe 15-draining groove 16-collecting pipe 17-draining pipe 18-third three-way pipe 19-third electromagnetic valve 20-filtering frame 21-filtering screen 22-cross frame 23-stepping motor 24-wire brush 25-water outlet shunt pipe 26-transparent observing pipe 27-cleaning piston 28-pushing sleeve 29-detachable pressing rod 30-elliptic limiting block 31-elliptic hole 32-fixing plate 33-fixing frame 34-fixing seat 35-warning lamp 36-buzzer 37-wireless signal transceiver 38-storage battery 39-charging port 40-operation panel 41-display screen 42-indicating lamp 43-starting button 44-45-46-feedback system 48-processing module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the embodiment of the invention provides a technical scheme: the utility model provides a condenser circulating water pipe secondary filter screen controlling means, including control box 1, inlet tube 2 and outlet pipe 3, upper and lower both sides and first three-way pipe 6 and the upper and lower both sides of second three-way pipe 7 of control box 1 and pencil pipe 4 are all through screw fixedly connected with fixed plate 32, between the surface of control box 1 and pencil pipe 4 and the surface of connecting pipe 13 and play water shunt tubes 25 all through mount 33 fixed connection, the upper and lower both sides that cartridge filter 5 is close to pencil pipe 4 one side are all fixedly connected with fixing base 34, and all pass through bolt fixed connection between fixing base 34 and the upper and lower both sides of pencil pipe 4, the front and back both sides of control box 1 top left side are respectively through-connection with warning light 35 and buzzer 36, the bottom of control box 1 inner chamber is from left to right fixedly connected with wireless signal transceiver 37 and battery 38 in proper order, wireless signal transceiver 37 can also remote receiving control signal, so as to facilitate remote control and regular cleaning, the bottom of the right side of the control box 1 is connected with a charging port 39 in a penetrating way, the bottom of the inner surface of the control box 1 is fixedly connected with a circuit board 44 above the storage battery 38 through a screw column, the output end of the circuit board 44 is respectively and electrically connected with the output ends of the stepping motor 23, the first electromagnetic valve 11, the second electromagnetic valve 12, the third electromagnetic valve 19, the warning lamp 35 and the buzzer 36 through wires, the operation panel 40 and the wireless signal transceiver 37 are both in bidirectional connection with the circuit board 44 through wires, the output end of the charging port 39 is electrically connected with the input end of the storage battery 38 through wires, the output end of the storage battery 38 is electrically connected with the input end of the circuit board 44 through wires, the circuit board 44 comprises a processor 45 and a pressure detection system 46, the processor 45 is an ARM9 series processor, the pressure detection system 46 further comprises a data comparison module 47 and a signal feedback module 48, wherein the output ends of the signal feedback module 48, the first pressure gauge 9 and the second pressure gauge 10 are electrically connected with the input end of the processor 45 through wires, the output end of the processor 45 is electrically connected with the input end of the data comparison module 47 through wires, the output end of the data comparison module 47 is electrically connected with the input end of the signal feedback module 48 through wires, the first pressure gauge 9 and the second pressure gauge 10 can detect the water pressure in the two water inlet shunt pipes 8, and then can identify and warn when the blockage is serious, and then automatically clean, if the blockage is in a high-pressure state for a long time due to the fault of a cleaning structure, a remote signal can be sent to call a worker for repair, so that the normal work of the device is ensured, the right side at the top of the control box 1 is connected with an operation panel 40 in a penetrating way, the top of the operation panel 40 is sequentially provided with a display screen 41, an indicator light 42 and a start button 43 from left to right, the right side of the control box 1 is fixedly connected with a wire harness pipe 4, the front side and the rear side of the wire harness pipe 4 are fixedly connected with a filter cylinder 5, opposite ends of a water inlet pipe 2 and a water outlet pipe 3 are respectively communicated with a first three-way pipe 6 and a second three-way pipe 7, the top of the second three-way pipe 7 is communicated with a transparent observation pipe 26, the inside of the transparent observation pipe 26 is slidingly connected with a cleaning piston 27, the top of the cleaning piston 27 is fixedly connected with a pushing sleeve 28, the top of the pushing sleeve 28 penetrates through the top of the transparent observation pipe 26 and extends to the upper side of the transparent observation pipe 26, the top of the pushing sleeve 28 is in threaded connection with a detachable pressure rod 29, the surface of the pushing sleeve 28 is positioned above the transparent observation pipe 26 and is fixedly connected with an elliptical limiting block 30, the top end of the transparent observation tube 26 is provided with an elliptical hole 31 matched with the elliptical limiting block 30, the elliptical hole 31 is matched with the elliptical limiting block 30, the push sleeve 28 can be limited to descend, the push sleeve is prevented from sliding into the transparent observation tube 26 and inconvenient to take out, the push sleeve can be smoothly pushed into the transparent observation tube 26 after rotating for 90 degrees, the filtered circulating water guiding-out part can enter the transparent observation tube 26 through the transparent observation tube 26, whether obvious impurities are contained in water or not can be further seen, the filtering effect can be further judged, so that the filter screen 21 is conveniently and timely switched, the inner wall of the transparent observation tube 26 can be cleaned by utilizing the matching of the detachable pressing rod 29, the push sleeve 28 and the cleaning piston 27, the transparency of the push sleeve is kept, the structure is simple and practical, two ends of the first three-way tube 6 are communicated with the water inlet split-tube 8, the right ends of the two water inlet split-tubes 8 are respectively communicated with the first pressure gauge 9 and the second pressure gauge 10, the left side and the right side of the two filter cartridges 5 are fixedly connected with a first electromagnetic valve 11 and a second electromagnetic valve 12 respectively, the right sides of the first electromagnetic valve 11 and the second electromagnetic valve 12 are communicated with a water outlet shunt pipe 25, the right ends of the two water outlet shunt pipes 25 are respectively communicated with the two ends of a second three-way pipe 7, the left sides of the first electromagnetic valve 11 and the second electromagnetic valve 12 are respectively communicated with the right sides of a first pressure gauge 9 and a second pressure gauge 10 through connecting pipes 13, a sewage flushing pipe 14 is communicated between the tops of the two filter cartridges 5, a sewage draining groove 15 is arranged at the bottom of the filter cartridges 5, a collecting pipe 16 is fixedly connected to the bottom of the filter cartridges 5 and positioned outside the sewage draining groove 15, the bottom of the collecting pipe 16 is communicated with a sewage draining pipe 17, the two sewage draining pipes 17 are communicated with each other through a third three-way pipe 18, and the surface of the sewage draining pipe 17 is fixedly connected with a third electromagnetic valve 19, through setting up two water inlet shunt tubes 8, make rivers have the flow that two passageways can alternate in turn, and then when one passageway needs clearance filter screen 21, can close this passageway, lead water to another passageway, do not influence the normal flow of rivers, and utilize dash dirty pipe 14 to connect two cartridge filters 5, can derive a small amount of water in making another passageway and wash cartridge filter 5 of waiting to clear, and then can be automatic with sewage discharge, convenient to use, and do not influence the work progress.
The inside rotation of cartridge filter 5 is connected with filter frame 20, and the equal fixedly connected with filter screen 21 of left and right sides of filter frame 20, the internal surface of cartridge filter 5 just is located the equal fixedly connected with rubber seal piece of both sides of filter screen 21, and the surface crimping of rubber seal piece and filter frame 20, can block water to both sides flow, the top fixedly connected with cross frame 22 of filter frame 20, the top of cross frame 22 embedding filter frame 20, the top fixedly connected with step motor 23 of cartridge filter 5, the bottom of step motor 23 output shaft runs through the top of cartridge filter 5 and with the central fixed connection of filter frame 20, the inside of cartridge filter 5 just is located the equal fixedly connected with wire brush 24 of inside and outside both sides of filter frame 20, wire brush 24 includes hard wire brush and soft wire brush, hard wire brush and soft wire brush set up the front and back both sides at the cartridge filter 5 inner chamber respectively, set up two-layer filter screen 21 in the inside of cartridge filter 5, make circulating water can carry out twice filtration, and utilize step motor 23 to drive filter frame 20, the cooperation brush 24 is scrubbed, and set up to two kinds of hard wire brush 24, can be more manual filter screen 21 has improved, the manual cleaning efficiency has not thoroughly cleaned.
The invention also discloses an operation method of the condenser circulating water pipe secondary filter screen control device, which comprises the following steps:
step one: during normal operation, circulating water enters from the water inlet pipe 2, flows into one water inlet split pipe 8 which is communicated through the first three-way pipe 6 { such as the water inlet split pipe 8 at the upper side }, flows through the water inlet split pipe 8-the first pressure gauge 9-the connecting pipe 13-the first electromagnetic valve 11 at the left side-the filter cartridge 5-the first electromagnetic valve 11 at the right side-the water outlet split pipe 25-the second three-way pipe 7 until the water outlet pipe 3 is discharged, water can be filtered twice by the filter screen 21 in the filter cartridge 5 when passing through the filter cartridge 5, and when the water is discharged, part of the water is flushed into the transparent observation pipe 26, and a worker can judge whether the filter screen 21 needs to be cleaned or not by observing the cleanliness of the water in the transparent observation pipe 26;
step two: when the filter screen 21 needs to be cleaned, a worker can close two first electromagnetic valves 11 by pressing a start button 43, simultaneously open two second electromagnetic valves 12, and open a third electromagnetic valve 19 on the corresponding side of the first electromagnetic valve 11, at the moment, circulating water is led into a water inlet shunt pipe 8 on the lower side, then a stepping motor 23 is started, the stepping motor 23 drives a filter frame 20 and the filter screen 21 to rotate through a cross frame 22, dirt on the surface of the filter screen 21 is brushed by using a steel wire brush 24, meanwhile, water in the other filter cartridge 5 enters the filter cartridge 5 through a dirt-flushing pipe 14, the brushed dirt is flushed into a collecting pipe 16 through a dirt-flushing groove 15, then the dirt-flushing pipe 17 is flushed, after cleaning is finished, the third electromagnetic valve 19 is closed, the right end of a third three-way pipe 18 connected with the dirt-flushing pipe 17 needs to be connected with a pipeline, and the sewage is discharged into a container;
step three: when no staff checks, the first pressure gauge 9 and the second pressure gauge 10 detect the water pressure in the water inlet shunt pipe 8 in real time and feed the numerical value back to the processor 45, the processor 45 inputs the numerical value into the data comparison module 47 for comparison, when the numerical value exceeds the standard, the signal feedback module 48 feeds back the result to the processor 45, the processor 45 automatically controls corresponding electronic devices to work according to the step II so as to dredge the pipeline, when the water pressure continuously increases to a dangerous value due to equipment failure, the warning lamp 35 blinks and warns, the buzzer 36 blinks and warns, and the wireless signal transceiver 37 sends a remote signal to inform workers of previous maintenance;
step four: when the transparent observation tube 26 is used for a long time and the water scale is attached to the inner wall of the transparent observation tube 26, a worker needs to take out the detachable pressure rod 29, screw the detachable pressure rod 29 on the top end of the pushing sleeve 28, rotate the pushing sleeve 28 to enable the elliptical limiting block 30 to rotate to an angle matched with the elliptical hole 31, then press down the detachable pressure rod 29, push the water scale out by the cleaning piston 27, finally pull the cleaning piston 27 and the pushing sleeve 28 back to the original position, detach the detachable pressure rod 29, and rotate the elliptical limiting block 30 again to an angle staggered with the elliptical hole 31.
And all that is not described in detail in this specification is well known to those skilled in the art.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.