KR102590317B1 - Method for monitoring leaks in the inventer booster pump system - Google Patents

Abstract

The present invention relates to a water leak monitoring method for an inverter booster pump system in which, when it is determined that there is a suction header leak, a discharge header water leak, or an individual pump water leak, the system is temporarily stopped for a certain period of time to stabilize and then the water leak is checked again.
The water leak monitoring method of the inverter booster pump system according to the present invention is divided into machine room flooding, suction header or discharge header water leakage, and individual pump water leakage. In the case of suction header or discharge header water leakage, the system is temporarily stopped to stabilize, and then the suction header water leakage is performed. Or, check again for leaks in the discharge header to determine whether to restart the system, and in the case of individual pump leaks, temporarily stop and stabilize the leaking pump, then check again for leaks in the leaking pump and operate the leaking pump. It is characterized by determining whether or not.

Description

Leakage monitoring method in inverter booster pump system {METHOD FOR MONITORING LEAKS IN THE INVENTER BOOSTER PUMP SYSTEM}

The present invention relates to a method for monitoring water leaks in an inverter booster pump system. More specifically, if it is determined that there is a suction header leak, a discharge header leak, or an individual pump leak, the system is temporarily stopped for a certain period of time to stabilize, and then the water leak is checked again. This relates to a method for monitoring water leaks in an inverter booster pump system.

The "inverter booster pump system" is introduced in the applicant's Korean Patent No. 10-2005241 (registered on July 24, 2019).

The inverter booster pump system has a plurality of ponds disposed on the bed, a pump is mounted on each pan, and a straight first and second grooves are formed in the ponds, respectively, so that the first groove and the second groove are formed in the inverter booster pump system. The grooves are arranged to face each other around the pump, the second groove is placed directly below the discharge-side check valve, the upper end of the induction pipe is connected to the upper casing, and the lower end of the induction pipe is disposed in the first groove, so that the upper Water leaking from the casing is supplied to the first groove through an induction pipe, a first contact sensor is installed in the first groove, a second contact sensor is installed in the second groove, and the signals of the first and second contact sensors is provided to the control unit, and the control unit determines whether there is water leakage or flooding.

However, the inverter booster pump system has many malfunctions, it is inconvenient for workers to check each time a malfunction occurs, and the inverter booster pump system has the disadvantage of having to reset the system when the system is stopped.

Therefore, the purpose of the present invention is to prevent secondary damage to the pump by forcibly stopping the system in the case of machine room flooding, suction header leakage, and discharge header leakage, and if it is determined to be a suction header leak or a discharge header leak, the system By temporarily stopping the system for a certain period of time to stabilize the system and then checking again for water leaks, the system is prevented from stopping due to malfunctions caused by detection errors in contact sensors, simple work errors by workers, and unexpected situations that may occur in the field. Even in the case of an individual pump leak, the leakage pump is temporarily stopped for a certain period of time to stabilize the leakage pump, and then the leakage pump is checked again for leakage, thereby preventing detection errors and malfunctions of the contact sensor. Leakage monitoring of the inverter booster pump system, which can determine the cause and designate the leakage pump as a skip pump, thereby reducing damage caused by a large amount of water leakage due to the leakage pump running continuously, causing other secondary damage or failing to respond immediately. It provides a method.

To achieve the above object, the water leak monitoring method of the inverter booster pump system according to the present invention is divided into machine room flooding, suction header or discharge header water leakage, and individual pump water leakage, and in case of suction header or discharge header water leakage, the system is temporarily shut down. After stopping and stabilizing, check again for leaks in the suction header or discharge header to determine whether to restart the system. In the case of individual pump leaks, temporarily stop and stabilize the leaking pump, and then check again for leaks in the leaking pump. It is characterized by checking to determine whether the water leak pump is in operation.

The water leak monitoring method of the inverter booster pump system according to the present invention,

Monitoring for water leakage while operating the pump system (S110);

If there is no leak, all pumps are recognized as normal (S120),

If there is a water leak, a step (S130) of distinguishing between machine room flooding, suction header or discharge header water leakage, and individual pump water leakage,

If the machine room is flooded, forcibly stopping the system (S140);

If the suction header or discharge header is leaking, the system is paused for a certain period of time to stabilize the system (S150);

After a certain period of time, a step of rechecking the suction header or discharge header for water leakage (S160),

If there is a leak in the suction header or discharge header, the system is forced to completely stop (S170),

If there is no leak in the suction header or discharge header, relevant information is delivered to the user and the system is restarted (S180).

If there is an individual pump leak, temporarily stopping the leak pump for a certain period of time to stabilize the leak pump (S190);

After a certain period of time, a step (S200) of rechecking the pump for water leakage,

If there is a leak in the pump that has been determined to be leaking, designating the leaking pump as a skip pump (S210);

If there is no water leak in the pump that has been determined to have a water leak, it is characterized by including a step (S220) of delivering relevant information to the user and allowing operation of the pump.

Here, if there is an individual pump leak, the step (S190) of temporarily stopping the leak pump for a certain period of time to stabilize the leak pump is,

A step (S191) of identifying a leaking pump and a normal pump without leakage,

A step of determining whether the main pump is leaking water (S192),

If the main pump is leaking, transferring the authority of the main pump to another normal pump (S193),

It is characterized by including a step (S194) of temporarily stopping all water leakage pumps for a certain period of time.

In addition, in the case of individual pump leakage, the leakage pump is temporarily stopped for a certain period of time to stabilize the leakage pump (S190), where the leakage part among mechanical seal leakage, check valve leakage, and casing leakage is identified in the water leakage pump. Do it as

In the step (S210) of designating the leaking pump as a skip pump, if it is determined that the supply flow rate is insufficient even after all normal pumps are operated, the skip pump is forcibly started and this is delivered to the user.

As a result, the water leak monitoring method of the inverter booster pump system according to the present invention can prevent secondary damage to the pump and prevent damage caused by detection errors in the contact sensor, simple operator errors, and unexpected situations that may occur in the field. It is possible to prevent the system from stopping due to malfunction, and by designating the leakage pump as a skip pump, the damage caused by a large amount of water leakage can be reduced by causing the leakage pump to run continuously, causing other secondary damage or failing to respond immediately. There is.

1 is a plan view showing an inverter booster pump system according to the present invention.
Figure 2 is a side view showing an inverter booster pump system according to the present invention.
Figure 3 is a flow chart showing a water leak monitoring method of the inverter booster pump system according to the present invention.
Figure 4 is a flow chart specifying the steps of stabilizing the leakage pump by temporarily stopping the leakage pump for a certain period of time if there is an individual pump leakage.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 show three pumps, but this is an example to explain the present invention. The present invention is not limited thereto and the number of pumps may vary, and the present invention can be carried out even if the number of pumps varies. You can see that it falls within the scope of the patent claims.

Referring to Figures 1 and 2, in the inverter booster pump system according to the present invention, a plurality of ponds 20 are disposed on the bed 10, and a pump 30 is mounted on each pond 20. , a plurality of pumps 30 are arranged in parallel between the suction header 71 and the discharge header 72, and a first groove 21 and a second groove 22 are formed in each reservoir 20. The first contact sensor 25 is mounted in the first groove 21, the second contact sensor 26 is installed in the second groove 22, and the upper end of the guide tube 50 is installed in the upper casing 31. This connection is made, and the lower end of the guide pipe 50 is disposed in the first groove 21, so that water leaking from the upper casing 31 is provided to the first groove 21 through the guide pipe 50. 1 The contact sensor 25 is energized and the signal from the first contact sensor 25 is provided to the control unit (not shown), and the second groove 22 is disposed directly below the discharge side check valve 40, When water leaking from the check valve 40 falls into the second groove 22, the second contact point 26 is energized, and a signal from the second contact sensor 26 is provided to the control unit, thereby preventing water leakage and flooding in the control unit. It is decided whether or not.

Additionally, the first groove 21 is disposed below the suction header 71, so that water leaking from the suction header 71 can flow into the first groove 21.

The control unit determines the water leakage pump and the water leakage part of the water pump as shown in Table 1.

1st pump 2nd pump
...... first n pump situation 1st contact sensor 2nd contact sensor 1st contact sensor 2nd contact sensor 1st contact sensor 2nd contact sensor X X X X X X All pumps normal
O X X X X X 1st pump mechanical seal leakage X O X X X X 1st pump check valve leak O O X X X X 1st pump casing leak X X O X X X 2nd pump mechanical seal leakage X X X O X X 2nd pump check valve leak X X O O X X 2nd pump casing leak ..... ...... X X X X O X No. n pump mechanical seal leakage X X X X X O Nth pump check valve leak X X X X O O 1st n pump casing leak X O X O X O Discharge header leak O X O X O X Suction header leak O O O O O O Machine room flooding

X: Disconnected, O: Energized

In the inverter booster pump system as described above, the water leak monitoring method of the inverter booster pump system according to the present invention is divided into machine room flooding, suction header or discharge header water leakage, and individual pump water leakage, and in the case of suction header or discharge header water leakage, the system After temporarily stopping and stabilizing, check again for leaks in the suction header or discharge header to determine whether to restart the system. In the case of individual pump leaks, temporarily stop and stabilize the leaking pump, and then check whether the leaking pump is leaking. Check again to determine whether the leakage pump is in operation.

Here, as shown in Figure 1, when the control unit receives water leakage signals from the first and second contact sensors 25 and 26 of all pumps, it determines that the machine room is flooded, and the control unit detects water leakage from the first contact sensors of all pumps. When a signal is received, it is judged to be a suction header leak, and when the control unit receives a water leak signal from the second contact sensor of all pumps, it is judged to be a discharge header leak, and the control unit determines that it is a discharge header leak, not all pumps. 2 When a water leak signal is received from the contact sensor, it is judged to be a water leak from an individual pump.

Individual pump leaks receive leakage signals from the first and second contact sensors and are classified into mechanical seal leaks, check valve leaks, and casing leaks.

Referring to Figure 3, that is, the water leakage monitoring method of the inverter booster pump system according to the present invention consists of steps described with reference to Figure 3.

Monitor for water leaks while operating the pump system (S110).

If there is no leak, all pumps are recognized as normal (S120).

If there is a water leak, distinguish between machine room water leakage, suction header or discharge header water leakage, and individual pump water leakage (S130).

If the machine room is flooded, the system is forced to stop (S140).

If there is a leak in the suction header or discharge header, the system is paused for a certain period of time to stabilize the system (S150).

After a certain period of time, check again for leaks in the suction header or discharge header (S160).

For example, pause the system for 300 seconds and recheck the suction header or discharge header for leaks after 300 seconds.

If there is a leak in the suction header or discharge header, the system is forced to completely stop (S170).

If there is no leak in the suction header or discharge header, relevant information is delivered to the user and the system is restarted (S180).

If there is an individual pump leak, the leak pump is temporarily stopped for a certain period of time to stabilize the leak pump (S190).

After a certain period of time, the pump that was judged to be leaking is checked again for leaks (S200).

For example, the pump that was judged to be leaking is temporarily stopped for 300 seconds, and the pump that was judged to be leaking is checked again after 300 seconds.

If there is a leak in the pump that was determined to be leaking, the leaking pump is designated as a skip pump (S210).

Designating the skip pump means excluding the designated pump from alternating operation.

If there is no leak in the pump that has been determined to be leaking, relevant information is delivered to the user and operation of the pump is permitted (S220).

In the step (S120) where all pumps are recognized as normal, if all pumps are normal, feedback is made to step S110.

Referring to Figure 4, if there is an individual pump leak, the step of stabilizing the leak pump by temporarily stopping the leak pump for a certain period of time (S190) is,

A step (S191) of identifying a leaking pump and a normal pump without leakage,

A step of determining whether the main pump is leaking water (S192),

If the main pump is leaking, transferring the authority of the main pump to another normal pump (S193),

It includes a step (S194) of temporarily stopping all leakage pumps for a certain period of time.

In addition, in the case of an individual pump leak, the leak pump is temporarily stopped for a certain period of time to stabilize the leak pump (S190). In the water leak pump, the leaked part among the mechanical seal leak, check valve leak, and casing leak is identified.

In the step (S210) of designating the leakage pump as a skip pump, if it is determined that the supply flow rate is insufficient even after all normal pumps are operated, the skip pump is forcibly started and this is delivered to the user.

This is because there is a high probability that it is an initial defect, and smooth water supply is a priority regardless of the defect.

As described above, the water leak monitoring method of the inverter booster pump system according to the present invention can prevent secondary damage to the pump by forcibly stopping the system in the case of machine room flooding, suction header water leakage, and discharge header water leakage, and suction header water leakage. Alternatively, if it is determined that the discharge header is leaking, the system is temporarily stopped for a certain period of time to stabilize the system, and then the leak is checked again to prevent any occurrences due to detection errors in the contact sensor, simple operator errors, or unexpected situations that may occur in the field. It is possible to prevent the system from stopping due to malfunction, and even in the case of an individual pump leak, the leakage pump is temporarily stopped for a certain period of time to stabilize the leakage pump, and then the leakage pump is rechecked to prevent detection errors in the contact sensor. and malfunctions can be prevented, the cause of the malfunction can be determined, and the leakage pump can be designated as a skip pump, thereby reducing the damage caused by a large amount of water leakage by causing the leakage pump to run continuously, causing other secondary damage or failing to respond immediately. There are advantages to this.

10: bed 20: pond
21: 1st groove 22: 2nd groove
25: 1st contact sensor 26: 2nd contact sensor
30: pump 40: check valve
50: Induction tube

Claims (5)

delete Monitoring for water leakage while operating the pump system (S110);
If there is no leak, all pumps are recognized as normal (S120),
If there is a water leak, a step (S130) of distinguishing between machine room flooding, suction header or discharge header water leakage, and individual pump water leakage,
If the machine room is flooded, forcibly stopping the system (S140);
If the suction header or discharge header is leaking, the system is paused for a certain period of time to stabilize the system (S150);
After a certain period of time, a step of rechecking the suction header or discharge header for water leakage (S160),
If there is a leak in the suction header or discharge header, the system is forced to completely stop (S170),
If there is no leak in the suction header or discharge header, relevant information is delivered to the user and the system is restarted (S180).
If there is an individual pump leak, temporarily stopping the leak pump for a certain period of time to stabilize the leak pump (S190);
After a certain period of time, a step (S200) of rechecking the pump for water leakage,
If there is a leak in the pump that has been determined to be leaking, designating the leaking pump as a skip pump (S210);
If there is no water leak in the pump that was determined to be leaking, it includes a step (S220) of delivering relevant information to the user and allowing operation of the pump,
If there is an individual pump leak, the step of stabilizing the leak pump by temporarily stopping the leak pump for a certain period of time (S190) is,
A step (S191) of identifying a leaking pump and a normal pump without leakage,
A step of determining whether the main pump is leaking water (S192),
If the main pump is leaking, transferring the authority of the main pump to another normal pump (S193),
A water leak monitoring method for an inverter booster pump system, comprising the step of temporarily stopping all water leakage pumps for a certain period of time (S194).
delete According to claim 2,
If there is an individual pump leak, the leak pump is temporarily stopped for a certain period of time to stabilize the leak pump (S190), which is characterized by identifying the leak area among mechanical seal leak, check valve leak, and casing leak in the leak pump. How to monitor leaks in an inverter booster pump system.
According to claim 2,
In the step of designating the leaking pump as a skip pump (S210), if the supply flow rate is determined to be insufficient even after all normal pumps are operated, the inverter booster pump system is characterized in that it forcibly starts the skip pump and delivers this to the user. Leakage monitoring method.

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