Submersible sewage pump operation monitoring method

Abstract

The invention discloses a submersible sewage pump operation monitoring method, and particularly relates to an operation monitoring method based on submersible sewage pump starting and stopping signals, which comprises the following steps: receiving the submersible sewage pump starting and stopping signals, and performing signal processing, starting time calculation, starting time comparison, starting frequency calculation and starting frequency comparison procedures. And outputting a submersible sewage pump starting duration trend, a submersible sewage pump starting frequency trend, a submersible sewage pump starting overtime alarm and a submersible sewage pump starting overfrequency alarm. According to the method, the initial condition that the drainage capacity is reduced or even insufficient due to faults of the submersible sewage pump, the water outlet pipeline and the connector can be monitored, the initial condition that water accumulation at the position where the submersible sewage pump is located is accelerated can also be monitored, and early warning and early disposal are achieved.

Description

Technical Field

[0001] The present invention relates to the field of drainage, and specifically to an operation monitoring method based on the start and stop signals of a submersible sewage pump. Background Art

[0002] In low-lying areas or underground spaces where people, equipment, facilities, and property are concentrated, in order to prevent waterlogging, submersible sewage pumps are generally installed to ensure the safety of people, equipment, facilities, and property in case of rainwater inflow or leakage of equipment in the same space. At present, the operation monitoring of submersible sewage pumps generally sets high-level liquid level alarms and submersible sewage pump overload alarms.

[0003] In the above-mentioned prior art, there may be a situation where the drainage capacity of the submersible sewage pump is insufficient and no alarm can be given in time. For example, if the pipeline on the outlet side of the submersible sewage pump becomes loose or bursts slightly, the submersible sewage pump still has a certain drainage capacity and can still drain dry the slowly accumulating water, and will not cause a high-level liquid level alarm. However, when the water accumulates too fast and a high-level liquid level alarm occurs, the opportunity for early disposal has been missed. Another example is that if the high-level liquid level alarm function fails, even if the drainage capacity of the submersible sewage pump is insufficient and the liquid level becomes too high, as long as the submersible sewage pump does not overload, no alarm will occur. Therefore, it is necessary to invent a method to detect the insufficient drainage capacity of the submersible sewage pump early, carry out early maintenance or start emergency disposal to prevent adverse consequences. Summary of the Invention

[0004] To achieve the above object, the present invention provides an operation monitoring method for a submersible sewage pump, specifically an operation monitoring method based on the start and stop signals of the submersible sewage pump. This method receives the start and stop signals of the submersible sewage pump, and through signal processing, start duration calculation, start duration comparison, start frequency calculation, and start frequency comparison programs, outputs the start duration trend of the submersible sewage pump, the start frequency trend of the submersible sewage pump, the start timeout alarm of the submersible sewage pump, and the start over-frequency alarm of the submersible sewage pump.

[0005] Further, the signal processing program marks the received start and stop signals of the submersible sewage pump, marking the corresponding submersible sewage pump and the corresponding moment.

[0006] Further, the start duration calculation program calculates the start duration by the time difference between each start and stop of each submersible sewage pump, generating the start duration of each submersible sewage pump corresponding to each start.

[0007] Further, the start duration comparison program immediately compares the calculation result of the start duration of each submersible sewage pump with the fixed value of the start duration of the submersible sewage pump, and outputs the start timeout alarm of the submersible sewage pump when the calculation result of the start duration is greater than the fixed value of the start duration of the submersible sewage pump.

[0008] Further, the start frequency calculation program calculates the number of starts of each submersible sewage pump within each fixed period, generating the start frequency of each submersible sewage pump within each fixed period.

[0009] Further, the startup frequency comparison program immediately compares the calculated startup frequency result of each submersible sewage pump with the set value of the startup frequency of the submersible sewage pump. When the calculated startup frequency result is greater than the set value of the startup frequency of the submersible sewage pump, an alarm indicating that the startup frequency of the submersible sewage pump is too high is output.

[0010] The present invention has the following advantages: Monitoring whether the startup duration of the submersible sewage pump increases and giving an alarm can monitor the decline and insufficiency of the drainage capacity of the submersible sewage pump, even in the initial stage of a fault caused by external reasons of the pump body such as the loosening or bursting of the pipeline on the water outlet side of the submersible sewage pump; Monitoring whether the startup frequency of the submersible sewage pump increases and giving an alarm can monitor the initial situation of the accelerated accumulation of water and the decline or even insufficiency of the drainage capacity of the submersible sewage pump relative to the water accumulation speed. Brief Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the implementation program of the present invention.

[0012] In the figure: 1 signal processing, 2 startup duration calculation, 3 startup duration comparison, 4 startup frequency calculation, 5 startup frequency comparison. Specific Embodiments

[0013] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0014] Please refer to Figure 1 . The present invention provides a method for monitoring the operation of a submersible sewage pump, specifically a method for monitoring the operation based on the startup and stop signals of the submersible sewage pump. This method receives the startup and stop signals of the submersible sewage pump, and through procedures of signal processing (1), startup duration calculation (2), startup duration comparison (3), startup frequency calculation (4), and startup frequency comparison (5), outputs the startup duration trend of the submersible sewage pump, the startup frequency trend of the submersible sewage pump, the alarm for startup timeout of the submersible sewage pump, and the alarm for startup over-frequency of the submersible sewage pump.

[0015] Further, the signal processing program marks the received startup and stop signals of the submersible sewage pump, marking the corresponding submersible sewage pump and the corresponding moment.

[0016] Further, the startup duration calculation program calculates the startup duration through the time difference between each startup and stop of each submersible sewage pump, generating the startup duration of each submersible sewage pump corresponding to each startup.

[0017] Further, the startup duration comparison program immediately compares the calculated startup duration result of each submersible sewage pump with the set value of the startup duration of the submersible sewage pump. When the calculated startup duration result is greater than the set value of the startup duration of the submersible sewage pump, an alarm indicating that the startup duration of the submersible sewage pump is overtime is output.

[0018] Further, the startup frequency calculation program calculates the startup times of each submersible sewage pump within each fixed period, and generates the startup frequency of each submersible sewage pump within each fixed period.

[0019] Further, the startup frequency comparison program immediately compares the calculation result of the startup frequency of each submersible sewage pump with the fixed value of the startup frequency of the submersible sewage pump, and outputs an alarm for over-frequency startup of the submersible sewage pump when the calculation result of the startup frequency is greater than the fixed value of the startup frequency of the submersible sewage pump.

[0020] Preferably, the historical data of the startup duration of each submersible sewage pump can generate visual charts such as trend charts for analysis of changes. If there is slow water accumulation due to underground seepage or other reasons usually, even if there has been no alarm for overtime startup of the submersible sewage pump, if the value becomes larger, on-site inspection still needs to be carried out to troubleshoot. If it is confirmed that there is no fault but the value is getting larger and larger, it indicates that the water accumulation is accelerating, and more attention needs to be paid to initiate countermeasures as early as possible. If the submersible sewage pump runs continuously, it indicates that the drainage capacity is insufficient, and a waterlogging situation has occurred or is about to occur, and more submersible sewage pumps need to be immediately put into use or plugging measures need to be taken to reduce the incoming water.

[0021] Preferably, the historical data of the startup frequency of each submersible sewage pump can generate visual charts such as trend charts for analysis of changes. If there is no water accumulation usually, there may be a problem as long as it starts, and inspection should be carried out immediately. If there is slow water accumulation due to underground seepage or other reasons usually, the startup frequency should be fixed. If the value becomes larger, check whether the drainage capacity has decreased relative to the water inflow speed and the water accumulation is accelerating. The reason for the accelerating water accumulation may be an increase in the incoming water or a drainage failure resulting in a decrease in the drainage capacity. Regardless of the reason, emergency disposal should be initiated as early as possible.

[0022] Preferably, the fixed value of the startup duration of the submersible sewage pump and the fixed value of the startup frequency of the submersible sewage pump can be obtained through water accumulation simulation tests according to the on-site characteristics, and adjusted and optimized according to the actual operation situation.

[0023] The trends of the startup duration of the submersible sewage pump and the startup frequency of the submersible sewage pump provided by the present invention can detect early faults in daily analysis, can detect abnormalities as early as possible when the water accumulation is accelerating, and the provided alarms for overtime startup of the submersible sewage pump and over-frequency startup of the submersible sewage pump can not only detect abnormalities as early as possible when the water accumulation is accelerating, but also issue alarms in the early stage of waterlogging, making up for the deficiencies of the prior art.

[0024] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A method for monitoring the operation of a submersible sewage pump, characterized in that Including: Receiving the start and stop signals of the submersible sewage pump, through signal processing, start duration calculation, start duration comparison, start frequency calculation, and start frequency comparison programs, outputting the start duration trend of the submersible sewage pump, the start frequency trend of the submersible sewage pump, the start timeout alarm of the submersible sewage pump, and the start over-frequency alarm of the submersible sewage pump.

2. The submersible sewage pump operation monitoring method according to claim 1, characterized in that: The signal processing program marks the received start and stop signals of the submersible sewage pump, marking the corresponding submersible sewage pump and the corresponding moment.

3. The submersible sewage pump operation monitoring method according to claim 1, characterized in that: The start duration calculation program calculates the start duration through the time difference between each start and stop of each submersible sewage pump, generating the start duration of each submersible sewage pump corresponding to each start.

4. The submersible sewage pump operation monitoring method according to claim 1, wherein: The start duration comparison program immediately compares the start duration calculation result of each submersible sewage pump with the start duration fixed value of the submersible sewage pump. When the start duration calculation result is greater than the start duration fixed value of the submersible sewage pump, it outputs the start timeout alarm of the submersible sewage pump.

5. The method for monitoring the operation of a submersible sewage pump according to claim 1, characterized in that: The start frequency calculation program calculates the start times of each submersible sewage pump within each fixed period, generating the start frequency of each submersible sewage pump within each fixed period.

6. The method for monitoring the operation of a submersible sewage pump according to claim 1, wherein: The start frequency comparison program immediately compares the start frequency calculation result of each submersible sewage pump with the start frequency fixed value of the submersible sewage pump. When the start frequency calculation result is greater than the start frequency fixed value of the submersible sewage pump, it outputs the start over-frequency alarm of the submersible sewage pump.

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