KR20170028062A - Drain pump with lifter for controller protecting - Google Patents
Drain pump with lifter for controller protecting Download PDFInfo
- Publication number
- KR20170028062A KR20170028062A KR1020150124862A KR20150124862A KR20170028062A KR 20170028062 A KR20170028062 A KR 20170028062A KR 1020150124862 A KR1020150124862 A KR 1020150124862A KR 20150124862 A KR20150124862 A KR 20150124862A KR 20170028062 A KR20170028062 A KR 20170028062A
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- KR
- South Korea
- Prior art keywords
- water level
- level sensor
- controller
- pump
- wastewater
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0686—Mechanical details of the pump control unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
- G01F23/74—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means for sensing changes in level only at discrete points
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a drain pump capable of predicting a water level outside a sensing area, and can easily predict the water level even when the water level of the wastewater deviates from the sensing area of the sensor, thereby determining the operation of the motor pump, Thereby making it possible to induce the lifting operation to be performed.
According to the present invention, a motor pump is built in, a suction port for sucking wastewater is formed in the lower part, and a discharge port for discharging wastewater sucked through the suction port is formed on the side surface. A pump body having an inlet hole formed therein for allowing wastewater to flow therein; And the controller includes a first water level sensor on the lower side and a second water level sensor on the upper side for measuring the water level of the wastewater, the water level being provided to the first water level sensor and the second water level sensor, The water level change rate is calculated on the basis of the time from the first water level sensor to the second water level sensor even if the water level sensor is out of the sensing range and the time when the water level change speed and water level reach the second water level sensor is considered So that the present water level can be predicted.
Description
The present invention relates to a drainage pump, and more particularly, it relates to a drainage pump capable of easily predicting a water level even when the water level of a wastewater deviates from a sensing area of a sensor, thereby determining operation of a motor pump, To the drain pump.
Generally, a drain pump is a mechanical component having a function of sucking a fluid remaining in the underground or various tanks by the suction force of an impeller rotated by receiving power of the motor and sending the fluid to the outside.
The conventional drain pump is automatically operated according to the water level in the water tank to adjust the water level, or the water drainage function is performed by water supply by a separate control unit.
As shown in FIG. 1, the water level adjusting device is provided with a
The
Therefore, when the fluid in the
However, in the case of the
In addition, in the case of the conventional drain pump, despite the basic sealing process, the drain pump is easily exposed to the harsh environment in which the fluid contaminated with various materials is handled, so that it is easily broken and disused. What is particularly lacking is that the electronic controller is disposing of the entire product including the relatively durable motor pump as the main cause of failure due to the corrosion caused by the sewage.
Accordingly, it is an object of the present invention to provide a drain pump capable of easily predicting the level even when the level of the wastewater is outside the sensing range of the sensor.
In order to achieve the above object, a drainage pump according to the technical idea of the present invention is a drainage pump for sucking and discharging wastewater. The drainage pump includes a motor pump. A suction port for sucking wastewater is formed in the lower part. A pump body having an inlet hole through which the wastewater sucked through the inlet is formed and an inlet hole formed in a part of the outer wall vertically upward from the lower end to allow wastewater to flow therein; And the controller includes a first water level sensor on the lower side and a second water level sensor on the upper side for measuring the water level of the wastewater, the water level being provided to the first water level sensor and the second water level sensor, The water level change rate is calculated on the basis of the time from the first water level sensor to the second water level sensor even if the water level sensor is out of the sensing range and the time when the water level change speed and water level reach the second water level sensor is considered So that the present water level can be predicted.
If the first level sensor is sensed to be wastewater, then the controller initially operates the motor pump. If the second level sensor is sensed to be wastewater, the controller operates the motor pump at a higher speed than the initial operation at the same time .
The lifter may further include a lifter installed to extend and retract in a vertical direction in a state of being supported by the pump body, and lifting the controller such that the controller is immersed in water level change.
The lifter may further include: a base provided at an upper portion of the pump body; A plurality of antenna pawls folded upward in the base so as to extend and retract upward; And a mounting plate coupled to the upper end of the antenna pole to raise the antenna pole when the antenna pole is extended and descend upon contraction.
Further, when the water level rises through the control of the controller, the lifter lifts up the mounting plate to prevent the controller from being flooded.
In addition, a controller cartridge having the controller incorporated therein is detachably mounted on the mounting plate.
A pair of guide rails formed on the upper surface of the mounting plate so as to be spaced apart from each other and facing each other to mount the controller cartridge on the mounting plate, and the controller cartridge includes a cartridge body having the controller therein, And a sliding cabinet of a flat plate type which protrudes leftward from the bottom of the main body and by mail and is fitted in correspondence with the pair of guide rails.
A plurality of first fixed pulleys connected to a first cable connected to the controller and a second cable connected to the motor pump for electrical connection between the controller and the motor pump and fixed to the inside of the sliding cabinet; A first fixed pulley and a second fixed pulley, the first fixed pulley and the second fixed pulley being coupled to each other in a sliding cabinet, A plurality of first moving pulleys for allowing the first cable to be drawn out and for withdrawing the first cable that has been drawn away from the first fixing pulley; And a plurality of first springs elastically supporting the first moving pulley so that the first moving pulley has a tendency to move in a direction away from the first fixing pulley, and the first cable is inclined to be drawn into the sliding cabinet, A plurality of second fixing pulleys fixedly installed in the mounting plate to allow the sliding of the sliding cabinet from the inside of the sliding cabinet when an external force is applied thereto; Wherein the second fixing pulley is provided at a position spaced apart from the second fixing pulley in an upper end portion of the mounting plate and supports the second cable in a zigzag manner with the second fixing pulley so as to approach A plurality of second moving pulleys for allowing the second cable to be drawn out and for withdrawing the second cable that has been drawn away from the second fixing pulley; And a plurality of second springs elastically supporting the second moving pulleys such that the second moving pulleys tend to move in a direction away from the second fixing pulleys so that the second cables tend to be drawn into the mounting plate, And when the external force is applied, it is allowed to be drawn out from the inside of the mounting plate.
The drain pump according to the present invention can easily predict the water level even when the water level of the wastewater is out of the sensing range of the sensor, thereby determining the operation of the motor pump and protecting the controller from flooding It is possible to induce the lifting and lowering operation.
Further, the present invention can protect the controller, which is frequently in trouble in a harsh environment handling various kinds of wastewater, from being immersed in the wastewater as much as possible by the structure including the lifter.
In addition, the present invention enables a controller, which is often in trouble in a harsh environment handling sewage, to be separated and replaced from a relatively durable motor pump, so that even if the controller fails, It is possible to use it for a long time by replacing only the corresponding part.
In addition, the present invention allows the cables connecting the controller and the motor pump to be withdrawn only when necessary. Since the cables can be expanded or contracted by a pulley structure, a plurality of pulleys constituting a pulley structure in a harsh environment, , There is an advantage in that even if some of the springs are damaged, they can be operated independently.
Brief Description of the Drawings Fig. 1 is a view for explaining a conventional drain pump;
2 is a perspective view for explaining a configuration of a drain pump according to an embodiment of the present invention;
Fig. 3A is a configuration diagram of a drain pump according to an embodiment of the present invention
3B is a control circuit diagram of the drain pump according to the embodiment of the present invention.
4 is a partial cross-sectional view for explaining a configuration for water level sensing in the drain pump according to the embodiment of the present invention
5 is a perspective view for explaining a detachable configuration of the controller cartridge in the drain pump according to the embodiment of the present invention.
6A and 6B are a series of views for explaining a pulley structure of a first cable connected to a controller from a drain pump according to an embodiment of the present invention;
7 is a view for explaining a pulley structure of a second cable connected to a motor pump in a drain pump according to an embodiment of the present invention;
8A to 8C are a series of references for explaining the operation of a lifter for lifting and lowering a controller cartridge in response to a change in water level in a drain pump according to an embodiment of the present invention
The drain pump according to the embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention, and are actually shown in a smaller scale than the actual dimensions in order to understand the schematic structure.
Also, the terms first and second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.
FIG. 2 is a perspective view for explaining the construction of a drain pump according to an embodiment of the present invention. FIG. 3 (a) is a structural view of a drain pump according to an embodiment of the present invention, Fig. 5 is a perspective view for explaining a detachable configuration of the controller cartridge in the drain pump according to the embodiment of the present invention.
As shown in the drawing, the drain pump according to the embodiment of the present invention is a portable drain pump manufactured to be portable and easy to move, and includes a
In the case of the structure for measuring the water level, a lower first
Here, in the case of the
3B, the 220V AC power supply is connected to the power switch and the input terminal. The input terminal of the transformer is connected to a bridge circuit composed of D1 to D4. The
That is, when the first
The first
When the motor pump is running, the consumption current of the motor pump rises and the voltage of the secondary side of CT rises. If the water level rises above the reference voltage of U2 / B, the output becomes 0V and Q5 turns off. .
The operation of the circuit will be described in detail as follows.
The first
That is, when a motor pump is connected to the terminal of the input terminal, and a power source of AC 220V is connected to the power input terminal to turn on the power source S / W, the voltage of AC 12V on the secondary side of the power transformer is rectified, 5V DC to supply power to the circuit. Immediately after power is applied, the output of U2 / A is + 5V, and through D6, Q2 and Q3 are conducted, L2 is lighted and the motor pump operates.
Thereafter, the output of U2 / A becomes 0V when the - input (pin 6) voltage of U2 / A becomes higher than the + input (pin 7) reference voltage after a certain time by the charging circuit of R25 and C5. When the power is turned on and the motor pump operates, the AC signal on the secondary side of CT is rectified and supplied to the positive input terminal of U2 / D and the negative input terminal of U2 / B.
When the motor pump operates with the water in the water tank, the voltage applied to the positive input terminal (pin 11) of U2 / D is higher than the reference voltage of the - input terminal (pin 10), and the output of U2 / D becomes + 5V Q4 conducts and the motor pump continues to operate. At this time, the output of U2 / B becomes 0V and Q5 becomes OFF state.
In addition, when the motor pump continues to operate and the water in the water tank is exhausted, the motor pump idly rotates and the current consumption is reduced. Therefore, the voltage on the secondary side of CT drops and the voltage of the + input terminal (pin 11) pin 10) so that the output becomes 0V and the motor pump stops operating.
At this time, the voltage of the - input terminal (pin4) of U2 / B becomes lower than the reference voltage of the + input terminal (pin5), and the output of U2 / B becomes + 5V and Q5 becomes conductive. When Q5 is conductive, a voltage of + 5V is applied to DIP S / W U3, and the time of the timer is determined by the resistance values of R6 to R9 connected to R10, C6 and DIP S / W U3.
When the U1 output is + 5V, Q6 becomes conductive, the Q6 collector voltage becomes 0V and the motor pump stops. When the U1 output becomes 0V, + 5V appears in the Q6 collector and Q3 and Q2 operate through D5 The LED lights up and the motor pump is activated.
When the motor pump is running, if the water in the water tank is wasted, the consumption current of the motor pump increases and the voltage of the secondary side of the CT increases. When the voltage of the secondary side of CT rises higher than the reference voltage of U2 / B, the output becomes 0V and Q5 turns off. And repeats the operations of the above items 6 to 10.
In the case of the first
If the water level in the water storage tank is lost even if the motor pump is operated by the first
The drain pump according to the embodiment of the present invention operates the
Hereinafter, the drain pump according to the embodiment of the present invention will be described in detail with respect to each of the above components.
The pump
The
The
The
The mounting
The
The
If the controller included in the
6A and 6B are a series of reference views for explaining a pulley structure of a first cable connected to a controller from a drain pump according to an embodiment of the present invention, Fig. 6 is a reference view for explaining the pulley structure of the second cable connected to the pump; Fig.
As described above, the drain pump according to the embodiment of the present invention includes a
6A and 6B, in order to allow the
According to the pulley structure, as shown in FIG. 6A to FIG. 6B, when the
7, a second fixing
According to such a pulley structure, the
In the case of the above-mentioned pulley structure, there is a somewhat complicated surface in consideration of only the structure for pulling in and out the
Hereinafter, the operation of the drain pump according to the present invention will be described in detail with reference to the accompanying drawings. 8A to 8C are a series of reference views for explaining the operation of the lifter for lifting and lowering the controller cartridge in response to a change in the water level in the drain pump according to the embodiment of the present invention.
8A shows a state of low water level where drainage is necessary but is not flooded to the
FIG. 8B shows the water level as well as the water level to the extent that the
FIG. 8C shows a state of high water level so that sewage overflows. In this case, the motor pump built in the pump main body operates as much as possible to discharge the wastewater, and the controller which determines the high delegation through the sensing and calculation of the first
As described above, the drain pump of the present invention can safely protect the controller from being flooded by the operation of raising and lowering the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.
110: pump body 111: inlet
112: outlet 120: lifter
121: mounting plate 122: antenna pole
123: base 125: protective cap
130:
130b: sliding
132b: first moving pulley 133: first spring
140: drive motor 150: impeller
161: first water level sensor 162: second water level sensor
163:
Claims (13)
A suction port for sucking wastewater is formed at a lower portion thereof and a discharge port for discharging wastewater sucked through the suction port is formed at a side portion thereof and a vertically upward portion is formed vertically from a lower end portion at an outer wall portion thereof, A pump body having an inlet hole for allowing the pump body to be opened;
And an inlet hole of the pump body includes a lower first water level sensor and a second upper water level sensor which are disposed at a height difference from each other to measure the water level of the sewage,
The controller calculates a water level change rate based on a time at which the water level reaches the second water level sensor from the first water level sensor even if the water level deviates from the sensing range of the first water level sensor and the second water level sensor, And the water level is predicted in consideration of the time when the water level reaches the second water level sensor.
The first water level sensor and the second water level sensor are provided as a magnetic sensor and a magnet sensed by the first water level sensor and the second water level sensor is installed in the buoyant body which is raised and lowered by the wastewater in the inflow hole Drainage pump.
The method according to claim 1,
The controller initially activates the motor pump when the first water level sensor is sensed as wastewater, and when the second water level sensor is sensed as wastewater, the controller operates the motor pump at a higher speed than the initial operation at the same time Drain pump.
Further comprising a lifter installed to extend and retract in a vertical direction in a state of being supported by the pump body, and to raise and lower the controller so as not to be submerged in accordance with a change in the water level.
A base provided at an upper portion of the pump body;
A plurality of antenna pawls folded upward in the base so as to extend and retract upward;
Wherein the controller is installed on the upper surface of the antenna pawl, and the mounting plate is coupled to the upper end of the antenna pawl so that the antenna pawl rises when the antenna paw is extended and descends upon contraction.
Wherein when the water level rises through the control of the controller, the lifter lifts up the mounting plate to prevent the controller from being flooded.
And a controller cartridge having a built-in controller is provided and detachably mounted on the mounting plate.
Wherein a pair of guide rails are formed on an upper surface of the mounting plate so as to face each other and face each other to mount the controller cartridge on the mounting plate,
Wherein the controller cartridge is composed of a cartridge body having the controller and a sliding cabinet of a flat plate type which protrudes leftward from the lower portion of the main body of the cartridge and is mated with the pair of guide rails, .
A first cable connected to the controller for electrical connection between the controller and the motor pump and a second cable connected to the motor pump are connected to each other,
A plurality of first fixed pulleys fixed within the sliding cabinet;
A first fixed pulley and a second fixed pulley, the first fixed pulley and the second fixed pulley being coupled to each other in a sliding cabinet, A plurality of first moving pulleys for allowing the first cable to be drawn out and for withdrawing the first cable that has been drawn away from the first fixing pulley;
Further comprising a plurality of first springs elastically supporting the first moving pulley so as to have a tendency to move in a direction away from the first fixing pulley,
The first cable tends to be drawn into the sliding cabinet and is allowed to be drawn out from the inside of the sliding cabinet when an external force equal to or greater than a predetermined level is applied,
A plurality of second fixing pulleys fixed inside the mounting plate;
Wherein the second fixing pulley is provided at a position spaced apart from the second fixing pulley in an upper end portion of the mounting plate and supports the second cable in a zigzag manner with the second fixing pulley so as to approach A plurality of second moving pulleys for allowing the second cable to be drawn out and for withdrawing the second cable that has been drawn away from the second fixing pulley;
Further comprising a plurality of second springs for elastically supporting the second moving pulley so as to have a tendency to move in a direction away from the second fixing pulley,
Wherein the second cable has a tendency to be drawn into the mounting plate and allows the second cable to be drawn out from the inside of the mounting plate when an external force equal to or greater than a predetermined value is applied.
Wherein the controller operates the motor pump when the wastewater is sensed by the first water level sensor, and stops operation of the motor pump when the motor pump idles because there is no waste water.
A bridge circuit composed of a transformer and a diode connected to an input terminal connected to a power switch connected to the power source, and a variable resistor connected to the constant voltage IC and the capacitor so as to supply DC power of 5V DC, And a first level sensor for causing the controller to operate the motor pump by sensing the presence or absence of wastewater. When the wastewater is sensed by the first level sensor, the motor pump operates to generate a signal of + 5V Wherein the control unit controls the motor pump to stop the operation of the motor pump when idling so that a voltage of 0V is output relative to the reference voltage when the motor pump is idly rotated.
Wherein the first water level sensor is circuit-connected to periodically set the timer time according to a resistance value of a resistor, a capacitor, and a resistance connected to the condenser and the DIP S / W, .
A suction port for sucking wastewater is formed at a lower portion thereof and a discharge port for discharging wastewater sucked through the suction port is formed at a side portion thereof and a vertically upward portion is formed vertically from a lower end portion at an outer wall portion thereof, A pump body having an inlet hole for allowing the pump body to be opened;
A controller cartridge having a controller body for controlling the operation of the motor pump and a sliding cabinet protruding leftward from the bottom of the cartridge body by a mail and having a storage space therein;
An antenna pawl mounted on the pump main body and provided on an upper portion of the pump main body; an antenna pole folded in a plurality so that the base can be extended and contracted in an upward direction; And the controller cartridge is detachably mounted on the upper surface of the pole. When the water level rises due to a change in the water level through the control of the controller, the mounting plate rises A lifter for allowing the mounting plate to descend when the water level is lowered and further comprising a pair of guide rails facing each other on the upper surface of the mounting plate so as to face the sliding cabinets of the controller cartridge;
And an inlet hole of the pump body includes a lower first water level sensor and a second upper water level sensor which are disposed at a height difference from each other to measure the water level of the sewage,
The controller calculates a water level change rate based on a time at which the water level reaches the second water level sensor from the first water level sensor even if the water level is out of the sensing range of the first water level sensor and the second water level sensor, The water level of the water level sensor can be predicted in consideration of the time when the water level reaches the second water level sensor.
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KR1020150124862A KR101733132B1 (en) | 2015-09-03 | 2015-09-03 | Drain pump with lifter for controller protecting |
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KR1020150124862A KR101733132B1 (en) | 2015-09-03 | 2015-09-03 | Drain pump with lifter for controller protecting |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101958326B1 (en) * | 2017-09-28 | 2019-03-14 | 허태석 | Drainage pump for contaminated wastewater to which a continuous contaminated wastewater virtual water level generation algorithm is applied and a pump control method |
CN110878584A (en) * | 2018-09-05 | 2020-03-13 | 湖北金环新材料科技有限公司 | Chemical fiber production wastewater pool capable of automatically switching on and off for pollution discharge |
CN116292335A (en) * | 2023-04-27 | 2023-06-23 | 山东心传矿山机电设备有限公司 | Water level controller of water pump |
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KR101958326B1 (en) * | 2017-09-28 | 2019-03-14 | 허태석 | Drainage pump for contaminated wastewater to which a continuous contaminated wastewater virtual water level generation algorithm is applied and a pump control method |
CN110878584A (en) * | 2018-09-05 | 2020-03-13 | 湖北金环新材料科技有限公司 | Chemical fiber production wastewater pool capable of automatically switching on and off for pollution discharge |
CN116292335A (en) * | 2023-04-27 | 2023-06-23 | 山东心传矿山机电设备有限公司 | Water level controller of water pump |
CN116292335B (en) * | 2023-04-27 | 2024-05-03 | 山东心传矿山机电设备有限公司 | Water level controller of water pump |
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