KR102283762B1 - Submersible pump - Google Patents

Abstract

The present invention relates to a submersible pump capable of understanding intuitive leakage information, and relates to a technology to understand a state of a pump even when a sensor line is cut and a monitoring device malfunctions by including an LED leakage information display part to intuitively understand the leakage information of the pump, improving a detection method of the moisture into another shape, and displaying the information in an effective method to enable a manager to understand the information. That is, the present invention comprises: a main body of a pump device inside the column pipe; a leakage sensor installed inside the main body to detect the inflow of moisture; a monitoring device connected to the leakage sensor to display leakage information outside the column pipe; and an LED display part connected to the leakage sensor at the outer side of the main body to display the operation state of the pump according to the detection information of the leakage sensor. The LED display part is installed above the main body so that a radiating direction of light can be faced upward so that the light can be identified through the opened part of the column pipe.

Description

Submersible pump capable of intuitively identifying leak information

The present invention relates to a submersible pump capable of intuitively identifying water leakage information. It has an LED water leak information display unit to intuitively grasp the water leakage information of the pump, improves the moisture detection method in another form, and allows the administrator to grasp it. By displaying it in an effective way, it relates to a technology that can grasp the state of the pump even when the sensor wire is disconnected and the monitoring device is malfunctioning.

In general, in pumping stations and drainage stations, water flowing into a storage tank is pulled up from the inside of a column pipe installed vertically by a submersible pump to the top so that it can be supplied to a required area.

In particular, in the case of a drainage site, a damper is installed in front of the storage tank and a submersible pump at the rear of the storage tank so that the pumping operation is performed when there is a risk of flooding of the drainage site due to flooding or it is necessary to forcibly flow the water from the drainage site to a river or stream. do.

When moisture flows into the submersible pump, the electric components inside the motor may fail due to a short circuit or a short circuit in the electric system, making the pump inoperable. In the case of pump failure due to short circuit and short circuit, the pump cannot function at all, so there is no alternative other than replacement.

In particular, when it is necessary to operate the drain pump due to sudden heavy rain, it is difficult to respond immediately to the failure of the pump as described above, which may cause major accidents such as flood damage and personal injury. Therefore, in order to prevent such a problem from occurring, continuous management is required so that the submersible pump is maintained in a normal state.

Conventionally, in order to detect a failure due to water inflow of a submersible pump, a water leak sensor is installed, then the sensor information of the water leak sensor is connected to an external monitoring device through a sensor wire, and the manager checks the monitoring device to determine whether the submersible pump is leaking. is to judge

However, the leak sensor so far has been applied as a normally open (B contact type) type sensor to prevent monitoring errors. In such a B-contact type sensor, the contact point is separated when there is no leakage, and the contact point is attached only when a water leak occurs, thereby generating an electrical signal. That is, in this sensor method, the leak indicator lamp in the monitoring device normally maintains an OFF state, but becomes ON only when a water leak occurs and the lamp is turned on.

When the water flowing into the drainage site contains sharp foreign substances, the disconnection problem occurs frequently due to physical damage to the sensor wire because the foreign substances are also sucked in during the pump operation process. However, due to the characteristics of the sensor method as described above, it is not possible to determine whether there is a disconnection at all, so it is recognized as a normal state.

If the sensor wire is disconnected and moisture flows into the pump and a malfunction occurs, there is a problem that cannot be dealt with at all in the event of a natural disaster such as heavy rain, There is a problem in that the time required for replacing the pump and the replacement cost increase.

As a related prior art, registered patent No. 10-2045678 (automatic attachment and detachment device for submersible pump with leak prevention function) guides the submersible pump to be accurately coupled to the discharge pipe installed inside the collecting well, and the submersible pump is used for discharging An automatic attachment/detachment device for a submersible pump having a leak prevention function to block leakage after being coupled to a pipe, wherein the automatic attachment/detachment device includes a discharge part coupled to the submersible pump and a flange part coupled to the end of the discharge pipe and the discharge unit includes a ring-shaped bracket having a plurality of fixing auxiliary parts on the outer edge, and a seal and a stopper coupled to the bracket, and an elastic member is provided between the bracket and the seal to seal by the elastic force of the elastic member. A technology is disclosed that is inserted into the flange portion of the discharge pipe to prevent leakage.

The prior art is a technology for preventing leakage of a pipe in which a pump is installed, and does not contain any technical content to prevent moisture from entering the inside of the device of the pump device or to accurately detect it and take appropriate measures. not.

The present invention has been devised to solve the above problems, and even if a disconnection or a failure occurs in an external monitoring device, a configuration that can display the pump status on the pump device itself is added so that the manager can accurately grasp in case of emergency, Even if there is no sensor wire breakage or failure of the external monitoring device, the pump status can be directly identified so that sudden heavy rain can be dealt with in advance, flood damage and human damage caused by pump failure can be prevented, and economic loss can be minimized. It aims to provide a submersible pump that can identify information.

The present invention provides a main body of a pump device installed inside a column pipe, a water leak sensor installed inside the body to detect the inflow of moisture, and a monitoring device connected to the water leak sensor to display leak information from the outside of the column pipe And, on the outside of the main body, an LED display unit is installed that is connected to the water leak sensor and displays the operation state of the pump according to the detection information of the water leak sensor, and the LED display unit is the upper part of the main body so that the irradiation direction of the light source is directed upward. It is characterized in that it can be identified through the open part of the column pipe.

In addition, the water leak sensor is applied as a normally closed type sensor, and it is characterized in that it is possible to generate an output value that continuously changes according to the amount of water leakage.

In addition, the water leak sensor is characterized in that the water leakage level is divided into an output value that varies depending on the amount of water leakage and displayed in different colors on the LED display unit.

In addition, the leak sensor; It characterized in that it consists of; a first sensor wire to connect the leak information detected to the monitoring device, and a second sensor wire to connect the leak information to the LED display unit.

In addition, a battery unit is further installed inside the main body, and the power supply of the water leak sensor and the LED display unit is composed of a first power supply line supplied from the monitoring device and a second power supply line supplied through the battery unit; It is characterized in that power is supplied through the power supply line and automatically switched to the second power supply line when the first power supply line is disconnected.

In addition, the battery unit is characterized in that power is charged through a charging line branched from the first power supply line.

The present invention enables the administrator to grasp the means by which the pump leak information can be identified through the LED display unit installed on the pump in addition to the monitoring device, so that the submersible pump can be used in various situations such as a failure of the monitoring device, a disconnection problem of the sensor wire, or heavy rain. The leak information of the pump can be accurately grasped without cumbersome lifting.

In addition, the present invention applies the type of sensor differently from the existing one, so that the leak information can be grasped more specifically, so that the manager can take an appropriate response according to the operation of the pump, and it is possible to easily determine whether the sensor wire, which could not be grasped in the past, is disconnected. There is a distinguishable effect.

1 is a view showing a conventional submersible pump leak detection system
2 is a view showing a submersible pump capable of intuitively identifying leak information of the present invention;
3 is an enlarged view showing the connection configuration of the water leak sensor and the LED display unit installed in the main body of the present invention;
4 is a view showing the state in the color of the LED display unit according to the output of the water leak sensor according to the present invention;
5 is a circuit diagram showing an example of an analog logic circuit showing the color display of the LED display unit according to the output of the water leak sensor according to the present invention;
6 is an exemplary view showing information related to water leakage of the monitoring device in the present invention;
7 is a block diagram showing the operation process according to the operation of the pump of the present invention;
8 to 10 are diagrams showing states according to the power supply and signal flow for each situation of the present invention;
11 is a view showing a preferred embodiment of the LED display unit of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

As shown in FIG. 1, the conventional submersible pump installs a water leak sensor inside the device, and then is connected to an external monitoring device and a sensor wire to check whether the pump leaks. However, due to the nature of the sensor method applied to the conventional submersible pump, no output signal is generated when there is no leakage, so when a sensor wire disconnection problem occurs, it cannot be grasped at all, and even if the manager is aware of the disconnection state, Since leak information cannot be grasped, there is a problem that cannot be dealt with at all when the leak condition of the pump and the heavy rain condition overlap.

The submersible pump capable of intuitively identifying water leakage information of the present invention is installed in the main body 100 of the pump device installed inside the column pipe 10 and the main body 100 as shown in FIGS. 2 to 3 . A water leak sensor 200 for detecting the inflow of moisture, a monitoring device 300 connected to the water leak sensor 200 to display leak information from the outside of the column pipe 10, and the outside of the main body 100 The LED display unit 400 is connected to the water leak sensor 200 and displays the operation state of the pump according to the detection information of the water leak sensor 200 is installed.

And the characteristic of the LED display unit 400 is that it is installed on the upper part of the main body 100 so that the irradiation direction of the light source is directed upward, so that it can be identified through the open part of the column pipe 10 .

As described above, by allowing the light source of the LED display unit 400 to be irradiated in the open upper direction of the column pipe 10, the administrator directly removes the cover (not shown) of the column pipe 10 without lifting the pump and checking it. It is possible to easily grasp the leak condition and disconnection problem of the pump only by checking the status of the LED display unit 400 by opening it.

According to the present invention, the information of the water leak sensor 200 for detecting whether the main body 100 is leaking can be confirmed through the monitoring device 300 installed outside the column pipe 10, and the LED display unit installed on the upper part of the main body 100 Through 400, the manager can directly check the status of the pump.

The main body 100 of the present invention is an element constituting the external shape of the pump device, and is installed in a form that is placed on the bed of the vertically installed column pipe 10 . The upper part of the column pipe 10 is open, and it is connected through a rope (not shown) as an open part, and installation and replacement are made in the form of lifting or lowering the pump.

The water leak sensor 200 of the present invention is installed inside the body 100 , and detects that moisture is introduced into the body 100 . Conventionally, as a normally open type sensor that generates an output only when a leak occurs, it was possible to determine only the presence of a leak, so it was difficult to accurately detect it in accordance with various variable conditions.

Therefore, in the present invention, the water leak sensor 200 is a normally closed type sensor that generates an output value that continuously changes according to the amount of water leakage. That is, since the output value of the sensor is always generated, it is possible to determine whether the sensor wire 210 is disconnected, which could not be grasped before.

And, as shown in FIG. 4 , the water leak sensor 200 can classify the degree of water leakage with an output value that varies depending on the amount of water leakage, and display the water leakage level in different colors on the LED display unit 400 . For example, the color of the LED display unit 400 is classified into green (Green), blue (Blue), and red (Red). This indicates that the operation is possible and requires further maintenance, and in the case of red, it indicates that the pump cannot be operated due to a serious water leak.

The present invention is to be expressed in three simple colors according to the output of the water leak sensor 200 as described above. If, in order to be applied in various colors of the LED display unit 400, a complex digital circuit is required, and therefore there is a problem of considerable inefficiency when considering the complexity of the system, durability, price, and the like.

Accordingly, the present invention is expressed in three colors R, G, and B according to the sensor value, and an analog logic circuit can be configured as shown in FIG. 5 . As shown in the drawing, a photocoupler may be used to separate the water leak sensor 200 and the LED circuit to promote the safety of the circuit. And when the output value of the water leak sensor 200 is less than a certain voltage, a green light is turned on, when it is in a certain voltage range, a blue light is turned on, and when it is above a certain voltage, a red light is turned on. make it light up

In order to make the leak information more accurate, a signal amplifying means (not shown) may be further included between the leak sensor 200 and the LED display unit 400 .

And the battery unit 500 is further installed inside the main body 100 of the present invention. Therefore, in the present invention, the power supply of the water leak sensor 200 and the LED display unit 400 is supplied through the first power supply line 600 supplied from the monitoring device 300 and the battery unit 500 . 2 power supply line 700;

The present invention made in this way is characterized in that power is normally supplied through the first power supply line 600, but is automatically switched to the second power supply line 700 when the first power supply line 600 is disconnected. .

In addition, the battery unit 500 is charged with power through the charging line 610 branched from the first power supply line 600 . In this way, since power can be charged as much as the storage capacity of the battery unit 500 , even if a problem occurs in the first power supply line 600 or the power supply itself is not made, the battery unit 500 and the second power source It is possible to supply power by itself for a certain period of time through the supply line 700 , so that it is possible to grasp the leak information of the pump even in an emergency.

8 to 10 show states according to the power supply and signal flow for each situation of the present invention. In the submersible pump of the present invention, as shown in the drawing in more detail, the switch unit 800 for controlling the power supply of the battery unit 500, the first power supply line 600 and the battery unit 500 are The first logic circuit 810 is connected to turn on/off the switch unit 800 according to the state of both voltages, and the first power supply line 600 and the monitoring device are connected to supply power and the voltage of the sensor signal. A second logic circuit 820 for sending an operation signal to the circuit of the LED display unit 400 by checking may be further included.

First, FIG. 8 shows the power supply and signal flow in a normal state, and there is no problem such as disconnection between the water leak sensor 200 and the first power supply line 600, so the water leak sensor 200 is the first power supply line. Power is stably supplied through 600 , and leakage is not detected, so that the LED display unit 400 displays a normal state.

Then, as shown in FIG. 9, when a disconnection occurs in the first sensor wire 211, the second logic circuit 820 receiving the sensor signal of the monitoring device detects the disconnection of the first sensor wire 211. is sensed, and a signal is transmitted to the LED display unit 400 . In this state, there is no problem in power supply, and power is stably supplied through the first power supply line 600 .

And as shown in FIG. 10 , when disconnection occurs in both the first sensor line 211 and the first power supply line 600 , the power of the first power supply line 600 in the first logic circuit 810 is Detecting that the supply is not made, the switch unit 800 in the OFF state is converted to the ON state, and the power supply of the water leak sensor 200 is made through the second power supply line 700 . In addition, the second logic circuit 820 receiving the information of the first power supply line 600 and the first sensor line 211 transmits disconnection information to the LED display unit 400 .

11 is a view showing a preferred embodiment of the LED display unit 400 according to the present invention, a reflector housing 410 formed in a downward concave shape and applied with a material such that an inner surface is made to reflect light, and the reflector The LED module 420 installed on the lower inner side of the housing 410 and the transparent window 430 installed on the open portion of the reflector housing 410 may be configured.

The reflector housing 410 has the effect of protecting the LED module 420 from external impact by allowing the LED module 420 to be installed in a buried form inside the body 100 without protruding, and the reflector The entire inner surface of the housing 410 reflects light to increase luminance, so that light can be identified without installing many LED modules 420 .

In addition, the transparent window 430 is applied with tempered glass to prevent damage due to external impact and suppress the occurrence of scratches, thereby preventing the problem of refraction of the light source due to the occurrence of scratches. In addition, it is preferable to further enhance the waterproof effect by further providing a waterproof layer 440 on the upper portion of the transparent window 430 . The waterproof layer 440 reinforces the watertight function of the transparent window 430 , and may be inserted into the transparent window 430 in the form of a soft transparent cover or may be formed by coating the surface of the transparent window 430 .

Although the present invention has been described above with reference to the above embodiments, it goes without saying that various modifications are possible within the scope of the technical spirit of the present invention.

10: column pipe 100: body
200: water leak sensor 210: sensor wire
211: first sensor wire 212: second sensor wire
300: monitoring device 400: LED display unit
410: reflector housing 420: LED module
430: transparent window 440: waterproof layer
500: battery unit 600: first power supply line
610: charging line 700: second power supply line
800: switch unit 810: first logic circuit
820: second logic circuit

Claims (6)

The main body 100 of the pump device installed inside the column pipe 10, the water leak sensor 200 installed inside the main body 100 to detect the inflow of moisture, and the water leak sensor 200 are connected The monitoring device 300 for displaying information on water leakage from the outside of the column pipe 10, and the water leak sensor 200 on the outside of the main body 100 are connected to the operation of the pump according to the detection information of the water leak sensor 200 The LED display unit 400 for displaying the state is installed,
The LED display unit 400 is installed on the upper portion of the body 100 so that the irradiation direction of the light source is directed upward,
The water leak sensor 200 is applied as a sensor of a normally closed type, and it is possible to generate an output value that continuously changes according to the amount of water leakage, and the detected water leak information is connected to the monitoring device 300. 1 sensor wire 211 and a second sensor wire 212 configured to connect the leak information to the LED display unit 400;
A battery unit 500 is further installed inside the main body 100, and the power supply of the water leak sensor 200 and the LED display unit 400 is a first power supply line 600 supplied from the monitoring device 300 and, Consists of; a second power supply line 700 supplied through the battery unit 500; normally, power is supplied through the first power supply line 600, and when the first power supply line 600 is disconnected, 2 to automatically switch to the power supply line (700),
The LED display unit 400 includes a reflector housing 410 that is formed in a downward concave shape and is made of a material such that an inner surface of which light is reflected, and an LED module installed on the lower inner side of the reflector housing 410 . Submersible pump capable of intuitively identifying water leakage information, characterized in that it comprises a 420 and a transparent window 430 installed in the open portion of the reflector housing 410 .
delete The method of claim 1,
The water leak sensor 200 is an LED submersible pump capable of intuitively identifying water leakage information, characterized in that the water leakage level is classified into an output value that varies depending on the amount of water leakage and displayed in different colors on the LED display unit 400 .
delete delete The method of claim 1,
The battery unit 500 is a submersible pump capable of intuitively identifying water leakage information, characterized in that power is charged through the charging line 610 branched from the first power supply line 600 .

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