Operation maintenance method of sewage submersible pump

Abstract

The invention discloses an operation maintenance method of a sewage submersible pump, and relates to the technical field of operation maintenance of water pumps. According to the method, the data related to the sewage draining submersible pump, including the type, number, fault frequency and fault type of the pump, the capability data of operation and maintenance personnel and the like, are comprehensively collected and are analyzed and processed in detail, so that the operation condition of the equipment can be accurately grasped, and the determined operation and maintenance target is more targeted based on the accurate data; according to different fault types and frequencies, key problems can be mainly solved, the accuracy and effectiveness of maintenance work are effectively improved, and resource waste caused by blind maintenance is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of operation and maintenance of water pumps, and in particular to an operation and maintenance method of a sewage submersible pump. Background Art

[0002] In many industrial sectors, especially the petrochemical industry, sewage disposal is crucial to maintaining normal production order and protecting the environment. As a key piece of equipment for this task, the stable operation of submersible sewage pumps directly impacts the continuity and safety of production processes.

[0003] With the continuous expansion of industrial scale, the number of sewage submersible pumps in factory areas has continued to increase, and their operating environment has become increasingly complex. Traditional maintenance methods often lack systematicity and scientificity. Most of them are simple repairs after equipment failures, without comprehensive data collection and in-depth analysis of the equipment's operating conditions. This makes it impossible to accurately grasp the overall operating status of the equipment, and it is difficult to detect potential problems in advance and take effective preventive measures. In addition, due to the lack of effective assessment and targeted improvement measures for the professional capabilities of operation and maintenance personnel, when faced with complex equipment failures, maintenance personnel may not be able to accurately determine the cause of the failure, and then take inappropriate maintenance measures, further affecting the service life and operational reliability of the equipment. These problems not only increase the company's equipment maintenance costs and downtime, but may also cause serious consequences such as environmental pollution due to poor sewage discharge, restricting the sustainable development of the company. Based on the above reasons, the present invention proposes an operation and maintenance method for sewage submersible pumps. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention comprehensively collects data related to sewage submersible pumps, including the type, quantity, number of failures, failure type and operation and maintenance personnel capability data of the pumps, and conducts detailed analysis and processing. It can accurately grasp the operating status of the equipment, and based on these precise data, the determined operation and maintenance goals are more targeted. According to different failure types and frequencies, key problems can be focused on, effectively improving the accuracy and effectiveness of maintenance work, and avoiding the waste of resources caused by blind maintenance; the present invention deeply analyzes the indirect and direct causes of sewage submersible pump failures, and adopts scientific confirmation methods for verification. It formulates effective operation and maintenance countermeasures for different failures, and adopts different levels of maintenance measures for equipment with different failure frequencies and severities, avoiding excessive or insufficient maintenance. It can solve the equipment failure problem from the root, significantly reduce the equipment failure rate, extend the service life of the equipment, reduce the frequency and cost of equipment replacement, and also reduce maintenance time and labor costs, thereby improving the work efficiency of maintenance personnel.

[0006] (2) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: a method for operating and maintaining a sewage submersible pump, comprising the following steps:

[0008] S1: Collect data related to sewage submersible pumps and analyze and process the collected sewage submersible pump data;

[0009] S2: Determine the operation and maintenance objectives of the sewage submersible pump based on the analyzed and processed data;

[0010] S3: Analyze and summarize the causes of sewage submersible pump problems based on the determined sewage submersible pump operation and maintenance objectives;

[0011] S4: Based on the analysis and summary of sewage submersible pump problems, formulate specific countermeasures for the operation and maintenance of sewage submersible pumps.

[0012] S5: Implement the plan based on the formulated operation and maintenance countermeasures to complete the operation and maintenance of the sewage submersible pump.

[0013] Preferably, the data related to the sewage submersible pumps include the types and quantities of sewage submersible pumps, the number of failures of the sewage submersible pumps within a specified time, the types and frequencies of failures of the sewage submersible pumps, and operation and maintenance capability data related to operation and maintenance personnel.

[0014] Preferably, the analysis and processing based on the collected sewage submersible pump data includes the following steps:

[0015] S11: Determine the length of time for data collection and count the number of failures of the sewage submersible pump on a monthly basis within the length of time;

[0016] S12: Analyze the types of failures that occur in sewage submersible pumps every month and obtain statistical data on failure type classification;

[0017] S13: Analyze the frequency and frequency of different fault data based on the fault type classification statistical data, so as to obtain the statistical data of the frequency of occurrence of sewage submersible pump failures.

[0018] Preferably, the failure types of the sewage submersible pump include burnt-out of the water pump coil, damaged water pump impeller, damaged pump casing, damaged cable and others.

[0019] Preferably, the operation and maintenance target of the sewage submersible pump is determined based on the frequency of failure of the sewage submersible pump. The operation and maintenance target of the sewage submersible pump can be one or more components of the sewage submersible pump failure type, and the operation and maintenance target of the sewage submersible pump also includes the target value for the later operation and maintenance of the sewage submersible pump.

[0020] Preferably, the analysis and summary of the causes of the sewage submersible pump problems include the following steps:

[0021] S21: After completing the determination of the operation and maintenance objectives for the sewage submersible pump, the operation and maintenance personnel review the data during the operation and maintenance process and analyze it based on their professional knowledge;

[0022] S22: Determine the indirect causes of failure of the sewage submersible pump based on the determined sewage submersible pump operation and maintenance objectives, and confirm and record them;

[0023] S23: Conduct a deeper study based on the indirect causes of the sewage submersible pump failure to determine the direct cause of the sewage submersible pump failure, confirm and record it.

[0024] Preferably, the indirect causes of the failure of the sewage submersible pump include insufficient inspections by maintenance personnel, excessive pump load, blockage of the pump impeller, reversal of the submersible pump, poor pump sealing, poor quality of the submersible pump, failure to install overcurrent protection, and long dehydration operation time of the submersible pump, among which the direct causes of the failure of the sewage submersible pump include poor pump sealing and long dehydration operation time of the submersible pump.

[0025] Preferably, the method for confirming the indirect causes and direct causes of the failure of the sewage submersible pump includes assessment verification, investigation verification and on-site investigation.

[0026] Preferably, the operation and maintenance countermeasures for poor sealing of the water pump are to check the existing submersible pump, replace the sealing ring, and replace the new cable and new sealing ring at the same time when repairing the faulty submersible pump. The operation and maintenance countermeasures for the submersible pump dehydration operation time being too long are to install a heat-sensitive switch on the submersible pump casing, automatically stop when the temperature exceeds the limit, and set a double protection liquid level control float valve in the water collection tank to ensure that the submersible pump drains the water collection tank.

[0027] (3) Beneficial effects

[0028] Compared with the prior art, the present application provides a sewage submersible pump operation maintenance method, which has the following beneficial effects: the present application collects data related to the sewage submersible pump comprehensively, including the type, number, failure frequency, failure type and operation and maintenance personnel ability data of the pump, and carries out detailed analysis and processing, so as to accurately grasp the operation condition of the equipment, and based on these accurate data, the determined operation and maintenance target is more targeted, the key problems can be solved according to different failure types and frequencies, the accuracy and effectiveness of the maintenance work are effectively improved, and the resource waste caused by blind maintenance is avoided; the present application analyzes the indirect and direct causes leading to the failure of the sewage submersible pump in depth, verifies by using a scientific confirmation method, formulates effective operation and maintenance countermeasures for different failures, takes different levels of maintenance measures for equipment with different failure frequencies and severity, avoids the situation of excessive maintenance or insufficient maintenance, can solve the equipment failure problem from the root, significantly reduces the equipment failure rate, prolongs the service life of the equipment, reduces the equipment replacement frequency and cost, can also reduce the maintenance time and labor cost, improves the work efficiency of the maintenance personnel. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The present application is a sewage submersible pump operation maintenance method flow chart;

[0030] Figure 2 The present application is a sewage submersible pump data analysis and processing flow chart;

[0031] Figure 3 The present application is a sewage submersible pump problem cause analysis and summary flow chart;

[0032] Figure 4 The present application is a failure cause analysis structure diagram. DETAILED DESCRIPTION

[0033] In order to better understand the purpose, structure and function of the present application, in order to realize the efficient and accurate operation and maintenance of the sewage submersible pump, the present application collects the data related to the sewage submersible pump, including the type, number, fault frequency, fault type and operation and maintenance personnel ability data of the pump, and carries out detailed analysis and processing, can accurately grasp the operation condition of the equipment, and based on these accurate data, the determined operation and maintenance target is more targeted, can according to different fault type and frequency, key problem is solved, the precision and effectiveness of maintenance work is effectively improved, the waste of resources caused by blind maintenance is avoided;The present application analyzes the indirect and direct causes of the sewage submersible pump failure in depth, and verifies by using scientific confirmation method, formulates effective operation and maintenance countermeasures for different faults, adopts different level maintenance measures for equipment with different fault frequency and severity, avoids the situation of excessive maintenance or insufficient maintenance, can solve the equipment failure problem from the root, significantly reduces the equipment failure rate, prolongs the service life of the equipment, reduces the equipment replacement frequency and cost, also can reduce the maintenance time and labor cost, improves the work efficiency of the maintenance personnel. A sewage submersible pump operation and maintenance method is further described in detail.

[0034] Reference Figure 1-4 The present application: a sewage submersible pump operation and maintenance method, comprising the following steps:

[0035] S1: collecting data related to sewage submersible pump, and analyzing and processing based on the collected sewage submersible pump data;

[0036] Specifically, the data related to the sewage submersible pump includes the type and number of the sewage submersible pump, the number of times of failure of the sewage submersible pump within a specified time, the type and frequency of failure of the sewage submersible pump, and the operation and maintenance personnel related operation and maintenance ability data, wherein the failure type of the sewage submersible pump includes water pump coil burnout, water pump impeller damage, pump body shell damage, cable damage and others.

[0037] Further, the analysis and processing based on the collected sewage submersible pump data includes the following steps:

[0038] S11: determining the length of time of data collection, and counting the number of times of failure of the sewage submersible pump within the time length based on month;

[0039] S12: analyzing the type of each failure of the sewage submersible pump each month, and obtaining failure type classification statistical data;

[0040] S13: analyzing the frequency and frequency of different failure data based on the failure type classification statistical data, thereby obtaining sewage submersible pump failure frequency statistical data.

[0041] S2: determining the operation and maintenance target of the sewage submersible pump based on the analyzed data;

[0042] Specifically, the determination of the operation and maintenance target of the sewage submersible pump is based on the failure frequency of the sewage submersible pump. The operation and maintenance target of the sewage submersible pump can be composed of one or more types of sewage submersible pump failure, and the operation and maintenance target of the sewage submersible pump also includes the target value of the later operation and maintenance of the sewage submersible pump.

[0043] S3: analyzing and summarizing the causes of the problems of the sewage submersible pump based on the determined operation and maintenance target of the sewage submersible pump;

[0044] Specifically, the analysis and summary of the causes of the problems of the sewage submersible pump include the following steps:

[0045] S21: After determining the operation and maintenance target of the sewage submersible pump, the operation and maintenance personnel reviews the data during the operation and maintenance and analyzes based on the professional knowledge of the operation and maintenance personnel;

[0046] S22: obtaining the indirect causes of the failure of the sewage submersible pump based on the determined operation and maintenance target of the sewage submersible pump, the indirect causes of the failure of the sewage submersible pump include less inspection times of the maintenance personnel, excessive load of the pump, blockage of the pump impeller, reverse rotation of the submersible pump, poor sealing of the pump, poor quality of the submersible pump, no installation of over-current protection, and too long running time of the submersible pump in dehydration, and confirming and recording;

[0047] S23: and based on the indirect causes of the failure of the sewage submersible pump, further research is conducted to obtain the direct causes of the failure of the sewage submersible pump, the direct causes of the failure of the sewage submersible pump include poor sealing of the pump and too long running time of the submersible pump in dehydration, and confirming and recording.

[0048] Further, the confirmation method of the indirect and direct causes of the failure of the sewage submersible pump includes examination verification, investigation verification and on-site investigation.

[0049] S4: developing countermeasures for the operation and maintenance of the sewage submersible pump based on the analysis and summary of the problems of the sewage submersible pump.

[0050] Specifically, the operation and maintenance countermeasure for the poor sealing of the pump is to check the existing submersible pump, replace the sealing ring, replace the new cable and the new sealing ring when the submersible pump fails, and the operation and maintenance countermeasure for the too long running time of the submersible pump in dehydration is to install a heat-sensitive inductive switch on the submersible pump shell, which automatically stops rotating when the temperature exceeds the limit, to set a double-protection liquid level control float ball valve in the water collecting pool to ensure that the submersible pump can pump the water collecting pool dry.

[0051] S5: implementing the scheme based on the developed operation and maintenance countermeasures to complete the operation and maintenance of the sewage submersible pump.

[0052] Embodiment one: taking the sewage submersible pump in the plant area of Guangzhou Petrochemical Construction and Installation Engineering Co., Ltd. as an example, in a submersible pump maintenance operation, a total of 43 types of sewage pumps and submersible pumps running in the plant area for a long time, 35 times of failure phenomena occurred in the first half of 2018, the average number of failures was 5.8 times per month, and showed an upward trend, the maintenance personnel strictly according to the maintenance method of the application, while replacing the damaged coil, carefully checked the sealing ring and cable condition, found that part of the sealing ring was aging, the cable was slightly damaged, immediately replaced the new sealing ring and cable, ensured the sealing performance of the submersible pump.

[0053] Embodiment two: in the process of collecting pool liquid level control reconstruction, the technical personnel carefully drew the double floating ball liquid level circuit according to the actual size of the collecting pool and the operation requirement of the submersible pump, and selected the high-precision and high-reliability floating ball switch, after a period of operation observation, there was no submersible pump dehydration operation, which ensured to reduce the probability of submersible pump dehydration operation, and proved the effectiveness of the double protection liquid level control floating ball valve.

[0054] After the above-mentioned embodiments are tested, the sealing rate of the sewage submersible pump reaches 100%, and after the liquid level position is detected by using the double floating ball, the phenomenon of submersible pump dehydration operation caused by inaccurate detection of the single floating ball control is effectively solved. After the countermeasures are implemented, the operation and maintenance members take July-December 2018 as the effect test period, the operation and maintenance members count the failure times of the 43 submersible pumps running in the plant area at present, the damage times of the submersible pump are reduced from 5.8 times per month before operation and maintenance to 1 time, which effectively improves the operation and maintenance effect of the sewage submersible pump.

[0055] It can be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present application.

Claims

1. A method for operating and maintaining a sewage submersible pump, characterized in that: The following steps are involved: S1: Collect data related to sewage submersible pumps and analyze and process the collected sewage submersible pump data; S2: Determine the operation and maintenance objectives of the sewage submersible pump based on the analyzed and processed data; S3: Analyze and summarize the causes of sewage submersible pump problems based on the determined sewage submersible pump operation and maintenance objectives; S4: Based on the analysis and summary of sewage submersible pump problems, formulate specific countermeasures for sewage submersible pump operation and maintenance; S5: Implement the plan based on the formulated operation and maintenance countermeasures to complete the operation and maintenance of the sewage submersible pump.

2. The operation and maintenance method of a sewage submersible pump according to claim 1, characterized in that: The data related to the sewage submersible pumps include the types and quantities of sewage submersible pumps, the number of times the sewage submersible pumps fail within a specified time, the types and frequencies of failures of the sewage submersible pumps, and operation and maintenance capability data related to the operation and maintenance personnel.

3. The operation and maintenance method of a sewage submersible pump according to claim 2, characterized in that: The analysis and processing based on the collected sewage submersible pump data includes the following steps: S11: Determine the length of time for data collection and count the number of failures of the sewage submersible pump on a monthly basis within the length of time; S12: Analyze the types of failures that occur in sewage submersible pumps every month and obtain statistical data on failure type classification; S13: Analyze the frequency and frequency of different fault data based on the fault type classification statistical data, so as to obtain the statistical data of the frequency of occurrence of sewage submersible pump failures.

4. The operation and maintenance method of a sewage submersible pump according to claim 3, characterized in that: The failure types of the sewage submersible pump include water pump coil burnout, water pump impeller damage, pump body casing damage, cable damage and others.

5. The operation and maintenance method of a sewage submersible pump according to claim 4, characterized in that: The operation and maintenance target of the sewage submersible pump is determined based on the frequency of failure of the sewage submersible pump. The operation and maintenance target of the sewage submersible pump can be one or more components of the sewage submersible pump failure type, and the operation and maintenance target of the sewage submersible pump also includes the target value for the later operation and maintenance of the sewage submersible pump.

6. The operation and maintenance method of a sewage submersible pump according to claim 5, characterized in that: The analysis and summary of the causes of the sewage submersible pump problem include the following steps: S21: After completing the determination of the operation and maintenance objectives for the sewage submersible pump, the operation and maintenance personnel review the data during the operation and maintenance process and analyze it based on their professional knowledge; S22: Determine the indirect causes of failure of the sewage submersible pump based on the determined sewage submersible pump operation and maintenance objectives, and confirm and record them; S23: Conduct a deeper study based on the indirect causes of the sewage submersible pump failure to determine the direct cause of the sewage submersible pump failure, confirm and record it.

7. The operation and maintenance method of a sewage submersible pump according to claim 6, characterized in that: The indirect causes of sewage submersible pump failure include insufficient inspection by maintenance personnel, excessive pump load, blockage of the pump impeller, reversal of the submersible pump, poor pump seal, poor quality of the submersible pump, failure to install overcurrent protection, and long dehydration operation time of the submersible pump. The direct causes of sewage submersible pump failure include poor pump seal and long dehydration operation time of the submersible pump.

8. The operation and maintenance method of a sewage submersible pump according to claim 7, characterized in that: The method for confirming the indirect causes and direct causes of the failure of the sewage submersible pump includes assessment verification, investigation verification and on-site investigation.

9. The operation and maintenance method of a sewage submersible pump according to claim 8, characterized in that: The operation and maintenance countermeasures for the poor sealing of the water pump are to check the existing submersible pump, replace the sealing ring, and replace the new cable and new sealing ring when repairing the faulty submersible pump. The operation and maintenance countermeasures for the submersible pump dehydration operation time being too long are to install a heat-sensitive switch on the submersible pump casing, automatically stop when the temperature exceeds the limit, and set a double protection liquid level control float valve in the water collection tank to ensure that the submersible pump drains the water collection tank.

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