KR101578478B1 - Smart pump having data storage and monitoring system using the same - Google Patents

Abstract

The present invention relates to a smart pump having a self detection information storage structure and a monitoring system using the same. The objective of the present invention is to provide the smart pump which receives and stores a detection signal generated from sensors by being connected to all kinds of sensors installed in an underwater motor pump and a pump monitoring system which is constructed using the smart pump. For this, in the underwater motor pump including: a motor; an impeller which pumps as rotating by being combined to a shaft of the motor; and a pump case having a motor chamber where the motor is provided and a pumping chamber where the impeller is installed, the present invention provides the smart pump having the self detection information storage structure, which includes: one or more sensors selected from a temperature sensor, a vibration sensor, a water leakage sensor and a pressure sensor; and an information processing unit which is installed in the pump case, and includes one or more input ports connected to a cable extended from the sensor, an AD converter for converting a detection signal received through the input port into a digital signal, a memory for storing the detection signal converted into the digital signal by the AD converter, a central processing unit for processing the detection signal in order to store the detection signal by classifying the detection signal stored in the memory according to the detection sensor, a communications port for receiving and transmitting a signal with an external monitoring unit, and a power supply port which is supplied with electricity from the cable introduced from the pump case and then supplies the electricity to the motor.

Description

Technical Field [0001] The present invention relates to a smart pump having a self-detecting information storage structure and a monitoring system using the smart pump.

The present invention relates to a smart pump having a self-detected information storage structure and a monitoring system using the same. More particularly, the present invention relates to a smart pump that detects various parameters such as internal temperature, leakage, vibration, To a smart pump having a self-detected information storage structure including an information processing unit for storing detection information and transmitting it to a monitoring unit, and a pump monitoring system constructed using the smart pump.

Generally, an underwater motor pump is a combination of a pump and a motor. In general, a motor composed of a stator and a rotor is constituted on the upper side of a pump case. An impeller, which pumps the fluid while rotating by the motor, As shown in FIG.

These submersible motor pumps are widely used for water / sewage and water supply and drainage systems because of their low noise and vibration, their simple construction and easy installation and handling.

Fig. 1 shows the structure of a conventional underwater motor pump.

The underwater motor pump includes an upper case 10 and a motor 20 which is formed inside the upper case 10 and includes a stator 21 and a rotor 22, And a lower case 40 having an inlet and an outlet for accommodating the impeller 30 and allowing fluid to flow by rotation of the impeller 30, .

When water in the water tank is discharged to the outside while the underwater motor pump is operated, a part of the underwater motor pump may be exposed to the atmosphere. In such a case, the underwater motor pump exposed to the atmosphere, There is a problem that overload is generated in the winding coil assembly provided in the motor to shorten the service life of the motor due to durability deterioration or the winding coil is burned due to overheating.

In addition, there is always a risk of water leakage due to the characteristics of operating in water, shocks and vibrations may occur due to the inflow of various floating matters floating in the water, and the pressure of the discharge part is often changed.

Such an underwater motor pump can not visually confirm the state of the underwater motor pump from the outside because it operates in water as described above. Therefore, various detection sensors are installed inside the underwater motor pump to monitor the operation state of the pump.

For example, Japanese Patent Application Laid-Open No. 10-2011-0024689 discloses an underwater motor pump provided with a surveillance camera for capturing an image of a motor constructed inside an underwater motor pump, and in Patent Document 10-2004-0008292 There is disclosed an underwater motor pump provided with a vibration sensor so as to monitor vibrations generated when the motor shaft rotates. In addition, an underwater motor pump including a water leakage sensor and a temperature sensor is used.

Various monitoring sensors for detecting the operating state of the underwater motor pump are installed inside the underwater motor pump, while the monitoring unit for receiving, storing and managing the detection signals generated from the various types of the sensors includes an external And is spatially separated from the detection sensor.

A cable must be wired between the underwater motor pump and the monitoring unit to connect the sensing unit and the monitoring unit which are spatially separated from each other. However, since cables must be wired for each sensing sensor, a large number of cables are required to be used. Conventionally, the structure is not only economically very inefficient, but also has a problem of lowering the utilization of space.

In addition, if adequate protection is not provided for a large number of cables from the underwater motor pump to the monitoring unit, the damage may be caused by the failure of the cable to deliver the abnormal signal in a timely manner .

Published Patent Publication No. 10-2011-0024689 (Mar. Published Japanese Patent Application No. 10-2004-0008292 (Mar.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide an information processing unit, which is connected to various sensors installed in an underwater motor pump and receives and stores detection signals generated from the sensors, A smart pump having a self-detected information storage structure, and a pump monitoring system constructed using such a smart pump.

According to an aspect of the present invention, there is provided a motor for rotating a shaft using electric power generated by generating electric power and generating rotational force, An impeller coupled to the shaft and pumping the fluid while rotating; And a pump case having a motor chamber in which the motor is configured and a pumping chamber in which the impeller is installed, the pump case comprising: a temperature sensor, a vibration sensor, a water leakage monitoring sensor, and a pressure sensor At least one detection sensor selected; At least one input terminal provided inside the pump case and connected to a cable extending from the detection sensor, an AD converter for converting a detection signal received through the input terminal into a digital signal, A memory for storing a detection signal converted into a signal, a central processing unit for processing the detection signal to store the detection signal stored in the memory separately for each detection sensor, a communication terminal for transmitting / receiving signals to / from an external monitoring unit, An information processing unit having a power terminal for receiving electricity from a cable drawn from the pump case and supplying the electric power to the motor; A dovetail groove formed on an upper surface of the terminal board installed at an upper end of the motor chamber; A module base having a dovetail rail formed in a structure corresponding to the dovetail groove and coupled to the dovetail groove, the dovetail rail being mounted on the bottom surface and the information processing unit mounted on the top surface; One or more bolts fastened to the terminal board through the dovetail rail and fixing the module base to the terminal board; And a protection case installed in a module base for receiving the information processing unit installed on the upper surface of the module base and protecting the module base from the external environment, the protection case being made of a transparent material. Lt; / RTI >

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In the smart pump having the self-detected information storage structure, the detection sensor may include a vibration sensor installed on a terminal board installed at an upper end of the motor chamber; A first leak detection sensor installed in a chamber separately provided at the upper end of the motor chamber by the terminal board; A second water leakage sensor installed at a lower end of the motor chamber; A winding temperature sensor installed in the winding portion of the motor; A first temperature sensing sensor provided at an adjacent position of a bearing provided in the pump case to support the upper end of the shaft; And a second temperature sensor installed at an adjacent position of the bearing installed in the pump case to support the lower end of the shaft.

Meanwhile, in the smart pump having the self-detected information storage structure, the information processing unit may include a power accumulation function for accumulating the amount of electric power supplied to the motor for operation of the submersible motor pump.

The present invention also relates to the smart pump; And a monitoring unit for receiving a detection signal stored in the information processing unit in a wired or wireless manner with the information processing unit provided in the smart pump and displaying the detected signal on a screen so that an administrator can check the status of the pump in real time The present invention provides a monitoring system using a smart pump having a self-detecting information storage structure.

In the monitoring system using the smart pump having the self-detected information storage structure, the mobile terminal includes a function of outputting a status information request signal of the smart pump. A monitoring computer for receiving and storing detection information transmitted from the monitoring unit; Collecting status information of each smart pump connected to the at least one monitoring computer through an internet network and providing the status information of the smart pump to the corresponding mobile terminal when the status information request signal of the smart pump is received from the mobile terminal A mobile server can be further included.

According to the present invention, since the detection signals generated from the various sensors for sensing the operation state of the underwater motor pump are stored in the information processing unit, it is necessary to connect each of the detection sensors and the external monitoring unit with a cable It is possible to reduce the number of cables required in establishing the pump monitoring system, thereby saving the time required for the related costs and operations.

Further, since the underwater motor pump is provided with the information processing unit for storing the state information, there is an effect that the management of the history of each underwater motor pump becomes easier in managing various underwater motor pumps.

1 is a structural view of a conventional underwater motor pump,
2 is a structural view of an underwater motor pump according to a preferred embodiment of the present invention.
3 is a structural diagram of an information processing unit according to the present invention;
4 is an exploded perspective view showing a mounting structure of the information processing unit according to the present invention,
FIG. 5 is a structural view of a monitoring system using a smart pump according to the present invention.
6 is a structural diagram of a monitoring unit according to the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 2 is a structural view of an underwater motor pump according to a preferred embodiment of the present invention, and FIG. 3 is a structural view of an information processing unit according to the present invention.

The smart pump 100 according to the present invention includes a motor 110 for rotating the shaft 111 by using a generated rotational force to generate a rotational force by being supplied with electricity, And a pump case 130 having a motor chamber 131 in which the motor 110 is formed and a pumping chamber 132 in which the impeller 120 is installed, The underwater motor pump is disposed underwater and includes various sensors for detecting the temperature, pressure, leakage, vibration, etc. of the pump, and receiving and storing detection signals generated from the detection sensor and transmitting the signals to the external monitoring unit 160 And an information processing unit (150).

The motor 110 is installed in a motor chamber 131 provided at an upper end of a pump case 130. The impeller 120 is installed in a pumping chamber 132 provided at a lower end of the pump case 130, A shaft 111 extending from the motor 110 is coupled to the impeller 120 disposed inside the pumping chamber 132 through the wall constituting the motor chamber 131 and the pumping chamber 132.

Since the motor 110, the impeller 120, and the pump case 130 having the above-described structure are similarly applied to an underwater motor pump already widely used, a more detailed description of these configurations will be omitted.

In the meantime, the sensing sensor of the submersible motor pump according to the preferred embodiment of the present invention comprises a vibration sensing sensor, a leakage sensing sensor, and a temperature sensing sensor, and may further include a pressure sensing sensor.

The vibration sensor 141 senses the magnitude of vibration generated when the underwater motor pump operates. The vibration sensor 141 is installed at the upper end of the motor chamber 131, (Not shown).

The terminal board 134 may be provided with a separate chamber 133 at the upper end of the motor chamber 131 through which the cable C is introduced so that water may flow into the cable inlet portion due to leakage, The inner space of the motor chamber 131 is divided into two spaces so as to prevent the damage caused by leakage of water from being diffused when the fluid flows into the interior of the motor chamber 131.

The leakage detection sensor includes a first leakage detection sensor 142 and a second leakage detection sensor 143. The first leakage detection sensor 142 is connected to the upper end of the motor chamber 131 by a terminal board 134 The second water leakage sensor 143 is installed at the lower end of the motor chamber 131 and is connected to the motor chamber 131 When water is introduced, a signal is generated.

The temperature sensor is composed of a winding temperature sensor 144, a first temperature sensor 145 and a second temperature sensor 146. The winding temperature sensor 144 is connected to the stator of the motor 110 The first temperature sensing sensor 145 is installed on the winding part 112 and detects the temperature of the winding 113. The first temperature sensing sensor 145 detects the temperature of the winding 113 installed on the pump case 130 to support the upper end of the shaft 111 And the second temperature sensing sensor 146 is installed at an adjacent position to detect the temperature of the upper end support bearing 113 of the motor 110. The second temperature sensing sensor 146 is disposed on the pump case 130 to support the lower end of the shaft 111 Is installed at an adjacent position of the installed bearing (114) and is configured to detect the temperature of the lower end support bearing (114) of the motor (110).

The pressure sensor detects the pressure of the fluid flowing through the rotation of the impeller 120. The pressure sensor detects the pressure of the fluid flowing into the pump case 130 by detecting the pressure of the fluid flowing through the inlet or inlet pipe of the pump case 130 And a second pressure detection sensor 148 installed at a discharge port or a discharge pipe of the pump case 130 to detect the pressure of the fluid discharged from the pump case 130 .

The information processing unit 150 is installed on the upper surface of the terminal board 134 and spatially separated from the motor 110. The information processing unit 150 is connected to the detection sensors by wire or wirelessly, .

The information processing unit 150 includes at least one input terminal 151 to which a cable extending from the detection sensor is connected, an AD converter 152 for converting a detection signal received through the input terminal 151 into a digital signal, A memory 153 for storing a detection signal converted into a digital signal by the AD converter 152, a central processing unit 153 for processing the detection signal to store the detection signal stored in the memory 153 separately for each detection sensor, A communication terminal 155 for sending and receiving signals to and from an external monitoring unit 160 and an electric power provided from a cable C that is led into the pump case 130 to the motor 110 And an information processing unit 150 having a power supply terminal 156 for power supply.

In addition, the information processing unit 150 may include a power integration function for accumulating the amount of electric power supplied to the motor 110, And the processing unit 154 may accumulate and store in the memory 153. [

The information processing unit 150 configured as described above is connected to the external monitoring unit 160 by wire or wirelessly and transmits the information stored in the memory 153 to the external monitoring unit 160 when the information request signal is received from the external monitoring unit 160 160).

Meanwhile, as described above, maintenance and replacement of the information processing unit 150 installed in the terminal board 134 is facilitated, and a dovetail (not shown) for maintaining a stable mounting state regardless of vibration generated during operation of the pump A groove 201, a module base 202, a bolt 203, and a protective case 204 may be further included.

The dovetail groove 201 is formed in a mounting portion 1341 provided for mounting the information processing unit 150 on the upper surface of the terminal board 134 and is formed on the upper surface of the mounting portion 1341 parallel to the terminal board 134 Structure.

An information processing unit 150 is mounted on the upper surface of the module base 202 and a dovetail rail 2021 having a structure to be coupled to the dovetail groove 201 is formed on the bottom surface of the module base 202 have.

The bolt 203 is configured to fasten the module base 202 to the terminal board 134 and to be fastened to the terminal board 134 while passing through the module base 202 or the dovetail rail 2021, (203) may be composed of one or more.

4 shows a structure in which two bolts 203 pass through the dovetail rail 2021 and are fastened to the terminal board 134. As shown in FIG.

The protection case 204 is provided on the upper surface of the module base 202 to receive the information processing unit 150 installed on the upper surface of the module base 202, The protective case 204 may be fixed to the module base 202 or may be fixed by a bolt to be disassembled and assembled.

Meanwhile, the protective case 204 is made of a transparent material so that the state of the information processing unit 150 can be visually confirmed, preferably made of a polycarbonate material.

According to the dovetail groove 201, the module base 202, the bolt 203, and the protective case 204, the coupling between the dovetail groove 201 and the dovetail rail 2021, The module base 202 is fixed to the terminal board 134 so that a more rigid mounting structure can be realized so that the mounting state can be stably maintained irrespective of the vibration generated in the operation of the pump, The module base 202 can be separated from the terminal board by disassembling the bolts 203 and separating the dovetail rail 2021 from the dovetail grooves 201. [

FIG. 5 is a structural view of a monitoring system using a smart pump according to the present invention, and FIG. 6 is a structural view of a monitoring unit according to the present invention.

The monitoring system using the smart pump according to the present invention is connected to the smart pump 100 described with reference to FIGS. 2 and 3 and the information processing unit 150 provided in the smart pump 100 by wire or wirelessly And a monitoring unit 160 for receiving a detection signal stored in the information processing unit 150 and displaying the detected signal on a screen so that an administrator can check the state of the pump in real time. In addition, the monitoring computer 170, A mobile terminal 180 and a mobile terminal 190 may be further included.

On the other hand, the monitoring unit 160 is provided with an AC 200V main power supply terminal 161, a PC communication terminal 162, and a display device such as an LCD liquid crystal display screen for displaying detection information received from the information processing unit 150 An information processing unit communication terminal 165, a pump movable contact signal input terminal 166, and an alarm output terminal 167. The information processing unit communication power supply 164, DC 24V, The apparatus 163 displays a temperature value detected by the temperature sensor, a vibration value detected by the vibration sensor, a leakage indicator based on the detection signal generated by the leakage sensor, a pressure value detected by the pressure sensor, do.

The monitoring unit 160 may be connected to the monitoring computer 170 in a wired or wireless manner to transmit detection information received from the information processing unit 150 to the monitoring computer 170, Unit 160 in addition to storing detection information transmitted from the mobile server 180 through the Internet.

The mobile server 180 receives detection information about the various smart pumps 100 from the plurality of monitoring computers 170 through the Internet network and receives status information requests for specific smart pumps from the mobile terminal 190 When the signal is received, the detection information for the smart pump is transmitted to the mobile terminal 190.

The smart pump and the monitoring system using the smart pump according to the present invention configured as described above are structures in which the information processing unit 150 installed in the pump case 130 receives and stores detection signals generated by the respective sensing sensors , It is not necessary to connect each of the detection sensors and the external monitoring unit 160 with a cable, so that it is possible to reduce the number of cables required in establishing the pump monitoring system, thereby saving the time required for related costs and operations There is an advantage.

Further, it is possible to easily grasp the change in the temperature, vibration magnitude, and pressure of the underwater motor pump using the detection information stored in the information processing unit 150 of each underwater motor pump. Based on this, It is possible to prevent the occurrence of an accident that the operation of the underwater motor pump is stopped due to the damage of the parts during the operation of the underwater motor pump, There is an advantage that it is possible to prevent diffusion.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
100: Smart pump 110: Motor
111: shaft 120: impeller
130: pump case 131: motor chamber
132: Pumping chamber 134: Terminal board
141: Vibration detection sensor 142: First leak detection sensor
143: Second leak detection sensor 144: Winding temperature detection sensor
145: first temperature sensor 146: second temperature sensor
150: information processing unit 160: monitoring unit
170: Monitoring computer 180: Mobile server
190: Mobile terminal

Claims (7)

A motor 110 for rotating the shaft 111 using a generated rotational force to generate a rotational force by receiving electricity;
An impeller 120 coupled with the shaft 111 to pump the fluid while rotating;
A motor chamber 131 in which the motor 110 is installed;
A pump case 130 having a pumping chamber 132 in which the impeller 120 is installed;
A vibration sensor 141 installed on a terminal board 134 provided at an upper end of the motor chamber 131;
A first leakage detection sensor 142 installed in a chamber separately formed at the upper end of the motor chamber 131 by the terminal board 134;
A second leakage detection sensor 143 installed at a lower end of the motor chamber 131;
A winding temperature detection sensor 144 provided on the winding portion 112 of the motor 110;
A first temperature sensing sensor 145 provided at an adjacent position of the bearing 113 provided in the pump case 130 to support the upper end of the shaft 111;
A second temperature sensing sensor 146 provided at an adjacent position of the bearing 114 installed in the pump case 130 to support the lower end of the shaft 111;
A first pressure sensor 147 installed at an inlet or an inlet pipe of the pump case 130 to detect a pressure of a fluid flowing by rotation of the impeller 120;
A second pressure sensor 148 installed at a discharge port of the pump case 130 or a discharge pipe to detect a pressure of fluid discharged from the pump case 130;
An AD converter 152 for converting a detection signal received through the input terminal 151 into a digital signal, an AD converter 152 for converting the detection signal received through the input terminal 151 into a digital signal, A memory 153 for storing a detection signal converted into a digital signal by the memory 153, a central processing unit 154 for processing the detection signal to separate the detection signals stored in the memory 153, A communication terminal 155 for transmitting and receiving signals to and from the external monitoring unit 160 and a power terminal 156 for supplying electricity provided from the cable C to the pump case 130 to the motor 110. [ (150);
A terminal board 134 installed at an upper end of the motor chamber 131;
A plate-shaped mounting portion 1341 which is closely fixed to an upper surface of the terminal board 134;
A dovetail groove 201 extending from one end to the other end of the mounting portion 1341 and opening toward the upper portion of the mounting portion 1341 and having a transverse cross section formed as a lower portion from the upper portion to the lower portion;
And has a cross section of the same shape as that of the dovetail groove 201 and is inserted and fixed in the dovetail groove 201 and passes through the dovetail groove 201 from the upper side to the lower side, A dovetail rail 2021 threadedly engaged with the dovetail rail 1341;
The lower surface of the dovetail rail 2021 is engaged with the dovetail rail 2021. The dovetail rail 2021 is inserted and fixed in the dovetail groove 201 so that the lower surface of the mounting portion 1341 located on the side of the dovetail groove 201 The module base 202 being closely fixed to the upper surface thereof;
A protective case 204 for allowing the information processing unit 150 mounted on the upper surface of the module base 202 to be hermetically sealed to the outside; The smart pump having a self-detected information storage structure. delete delete delete The method according to claim 1,
Wherein the information processing unit (150) includes a power accumulation function for accumulating the amount of electric power supplied to the motor (110) for operation of the submersible motor pump. A smart pump (100) according to claim 1 or 5; And
The detection signal stored in the information processing unit 150 is displayed on a screen by being connected to the information processing unit 150 provided in the smart pump 100 in a wired or wireless manner to check the status of the pump in real time And a monitoring unit (160) for storing the self-detected information. The method of claim 6,
A mobile terminal 190 including a function of outputting a status information request signal of the smart pump;
A monitoring computer (170) for receiving and storing detection information transmitted from the monitoring unit (160);
The state information of each smart pump is collected by the at least one monitoring computer 170 and the Internet network, and when the state information request signal of the smart pump is received from the mobile terminal 190, And a mobile server (180) for providing the mobile terminal (190) with the smart card.

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