CN114776602B - Petrochemical machine pump group operation monitoring and fault diagnosis system and management method based on ad hoc network - Google Patents

Petrochemical machine pump group operation monitoring and fault diagnosis system and management method based on ad hoc network Download PDF

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Publication number
CN114776602B
CN114776602B CN202210221996.3A CN202210221996A CN114776602B CN 114776602 B CN114776602 B CN 114776602B CN 202210221996 A CN202210221996 A CN 202210221996A CN 114776602 B CN114776602 B CN 114776602B
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China
Prior art keywords
pump
petrochemical
monitoring device
machine
machine pump
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CN202210221996.3A
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CN114776602A (en
Inventor
赖拥军
谢孔英
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Zhejiang Weike Electromechanical Co ltd
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Zhejiang Weike Electromechanical Co ltd
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Priority to CN202210221996.3A priority Critical patent/CN114776602B/en
Publication of CN114776602A publication Critical patent/CN114776602A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0088Testing machines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/12Combinations of two or more pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0077Safety measures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K11/00Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/25Devices for sensing temperature, or actuated thereby
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

The invention relates to the technical field of petroleum exploitation, and particularly discloses a petrochemical machine pump group operation monitoring and fault diagnosis system and a management method based on an ad hoc network; the system comprises a control cabinet, a portable receiving terminal, a machine pump group consisting of a plurality of petrochemical machine pumps, a temperature monitoring device arranged on each petrochemical machine pump, a pump body mechanical seal monitoring device arranged on each petrochemical machine pump, an operation vibration monitoring device arranged on each petrochemical machine pump, and a flow monitoring device for monitoring the flow of a single petrochemical machine pump and the total flow of the monitoring machine pump group; the intelligent degree of the design of the whole device is high, the operator is not required to carry out regular inspection, the received fault diagnosis result is directly used for carrying out targeted maintenance on the device, the labor intensity of the operator is reduced, and the normal and stable operation of the petrochemical machine pump group is effectively ensured.

Description

Petrochemical machine pump group operation monitoring and fault diagnosis system and management method based on ad hoc network
Technical Field
The invention relates to the technical field of petroleum exploitation, and particularly discloses a petrochemical engineering machine pump group operation monitoring and fault diagnosis system and a management method based on an ad hoc network.
Background
In the field of process manufacturing, in particular petrochemical industry, a large number of pump devices are installed in a factory, and a pump group is formed by a plurality of pumps. Failure of the pump once the pump is out of service often affects production, causes wastage, product quality instability, and even causes accidents. In the past, a large number of machine pump equipment scattered around a factory are monitored by adopting a manual regular inspection mode, and the detection parameters of the machine pump are more, such as the temperature of the machine pump during operation, the vibration condition of the machine pump during operation, the mechanical sealing performance of a pump body and the like, and the traditional manual regular inspection is to measure vibration and temperature data of the machine pump equipment through a temperature measuring gun and a vibration meter, record the vibration and temperature data on a paper inspection table and carry out data analysis fault judgment through the signature inspection of an upper-level main pipe.
The invention with the application number of 201410575336.0 discloses an online intelligent monitoring device for a water pump motor, which comprises a microprocessor, wherein the online intelligent monitoring device comprises a current detection module, a voltage detection module, a power factor monitoring module, a temperature sensor and an alarm module which are respectively connected with the microprocessor, an RS485 communication interface is further connected to the microprocessor, the microprocessor is further connected with a power supply for supplying power, the control circuit comprises an MSP430 chip, and the alarm module comprises a high Wen Chaowen alarm unit, an overvoltage alarm unit and an overcurrent alarm unit. The on-line intelligent monitoring device for the water pump motor disclosed by the invention can detect the temperature and current and voltage of the pump during operation through the set sensor, the set current detection module and the set voltage detection module, but cannot monitor the operation vibration condition of the pump group, the mechanical sealing performance of the pump body and other aspects in real time; in addition, the device alarms through the set alarm module, but when the operator is not near the alarm, the operator cannot timely receive related prompts, and the operator cannot timely send the result of the fault diagnosis of the pump of the machine to the operator, so that the operator is reminded of timely processing. Therefore, the system and the method for monitoring and diagnosing the operation and the fault of the pump group of the petrochemical industry based on the ad hoc network are designed to solve the defects of the prior art.
Disclosure of Invention
The invention aims at solving the defects of the prior on-machine pump group monitoring device in the background technology and designs a petrochemical machine pump group operation monitoring and fault diagnosis system and a management method based on an ad hoc network.
The invention is realized by the following technical scheme:
the utility model provides a petrochemical machine pump group operation monitoring and fault diagnosis system based on ad hoc network, includes control cabinet, portable receiving terminal, the machine pump group of constituteing by a plurality of petrochemical machine pumps, set up the temperature monitoring device on every petrochemical machine pump, set up the pump body mechanical seal monitoring device on every petrochemical machine pump, set up the operation vibration monitoring device on every petrochemical machine pump, and be used for monitoring the flow of single petrochemical machine pump and monitor the flow monitoring device of the total flow of machine pump group;
the petrochemical engineering machine pumps are arranged in a row in order, an installation bottom plate is arranged below the petrochemical engineering machine pumps, an organic pump seat is arranged at the lower end of each petrochemical engineering machine pump, the operation vibration monitoring device comprises an upright post arranged on the lower surface of the machine pump seat and a sleeve corresponding to each upright post and arranged on the installation bottom plate, the lower ends of the upright posts are connected with cylindrical permanent magnets, the lower ends of the permanent magnets are connected with end blocks matched with the sleeves, the lower ends of the end blocks are connected with first springs, the lower ends of the first springs are connected with the bottom wall of the sleeve, spiral coils are arranged inside the sleeves, located at the same height, of the permanent magnets, and a current sensor is arranged on the outer surface of each sleeve, and the two ends of each spiral coil are connected with the current sensor;
the petrochemical engineering machine pump comprises a machine pump motor, a pump body, a pump shaft and an impeller, wherein an output shaft of the machine pump motor is connected with the pump shaft, the end part of the pump shaft extending into the pump body is connected with the impeller, a mechanical seal assembly is arranged in the pump body between the machine pump motor and the impeller, a closed space is arranged in the pump body, which is close to one end of the impeller, of the mechanical seal assembly, the pump body mechanical seal monitoring device comprises a hydraulic sensor arranged in the closed space, and a converter connected with the hydraulic sensor is arranged at the upper end of the pump body;
the temperature monitoring device comprises a mounting block and a temperature sensor, wherein the mounting block and the temperature sensor are arranged at the upper end of the machine pump motor, a jack capable of being inserted into the machine pump motor is formed in the mounting block, and a temperature probe on the temperature sensor stretches into the machine pump motor through the jack to be arranged inside;
the liquid outlet ends of the petrochemical machine pumps are connected with oil delivery branch pipes, the end parts of the oil delivery branch pipes are connected with an oil delivery main pipe, and the flow monitoring device comprises a first flow detector and a second flow detector which are respectively arranged on the oil delivery branch pipes and the oil delivery main pipe;
the utility model discloses a portable receiving terminal, including control cabinet, portable receiving terminal, battery, electric connection, wireless transmission module, electric connection, battery, electric connection, controller's lateral surface is provided with the connector with electric current sensor, converter, temperature sensor, first flow detector and second flow detector electric connection, the inside lower extreme of control cabinet is provided with the battery, is located be provided with treater CPU on the control cabinet lateral wall of battery top, electric connection is located between connector and the treater CPU is provided with wireless transmission module and storage module on the control cabinet inner wall of treater CPU top, wireless transmission module passes through wireless connection between ad hoc network and the portable receiving terminal.
As a further setting of the scheme, the first flow detector and the second flow detector both comprise connecting pipes with wide two ends and narrow middle, a pressure sensor is arranged on the inner wall above the connecting pipes, a swinging water blocking plate is rotationally connected to the side of the pressure sensor, a second spring is connected between the swinging water blocking plate and the pressure sensor, and the pressure sensor is electrically connected with a connector.
As a further arrangement of the above, the outer surface of the pressure sensor arranged inside the adapter is coated with a corrosion-resistant layer.
As a further arrangement of the scheme, four stand columns are connected with the lower surface of each pump seat, and are distributed at four corners of the lower surface of the pump seat.
As a further arrangement of the scheme, sealant is filled between the temperature probe and the jack on the temperature sensor.
As a further arrangement of the scheme, the front side of the control cabinet is provided with a rectangular opening, a cabinet door is rotatably connected in the rectangular opening through a hinge, and a cabinet lock is arranged between the cabinet door and the control cabinet.
As a further arrangement of the scheme, a plurality of groups of heat dissipation holes are formed in the upper surface of the control cabinet.
As a further arrangement of the scheme, air inlet pipes are arranged on the left side and the right side of the lower end of the rear side face of the control cabinet, and a heat dissipation fan is arranged in the air inlet pipes.
As a further arrangement of the scheme, a horizontal mounting plate is connected to the middle of the rear side face of the control cabinet through screws, and the processor CPU is arranged on the upper surface of the horizontal mounting plate.
The processing method based on the petrochemical machine pump group operation monitoring and fault diagnosis device comprises the following steps:
1) The temperature, mechanical tightness, vibration state, single conveying flow and total flow of each petrochemical machine pump are acquired in interval time periods through a temperature monitoring device, a pump mechanical seal monitoring device, an operation vibration monitoring device and a flow monitoring device which are arranged on each petrochemical machine pump;
2) The temperature monitoring device, the pump mechanical seal monitoring device, the operation vibration monitoring device and the flow monitoring device transmit collected data to the CPU, and the CPU compares the collected data with standard data in the storage module;
3) When the collected data is in the range of the standard data, the pump of the petrochemical machine is indicated to normally operate, and only the collected data is stored in the storage module;
4) When the acquired data exceeds the standard data range, the operation of the petrochemical pump is abnormal, at the moment, the CPU analyzes and diagnoses the fault reason according to the abnormal data, then the serial number and the fault reason of the petrochemical pump with specific faults are sent to the portable receiving terminal through the wireless transmission module, and an operator maintains the petrochemical pump on site according to the indication after receiving the information through the portable receiving terminal.
Compared with the prior art, the invention has the following beneficial effects:
1) The invention discloses an operation monitoring and fault diagnosis system of petrochemical machine pump groups based on an ad hoc network, which is characterized in that the temperature monitoring device, the pump body mechanical seal monitoring device, the operation vibration monitoring device and the flow monitoring device of each petrochemical machine pump in the machine pump groups can monitor the temperature, the mechanical tightness, the vibration state, the single conveying flow and the total flow of each petrochemical machine pump at intervals, collected data are transmitted to a CPU (central processing unit), the CPU can compare the collected parameter data with a stored standard value range, the data are stored for convenient subsequent retrieval when the parameter data are normal, the CPU can analyze according to parameters in time when the collected parameter data exceed the standard value range, the fault cause is automatically diagnosed, the analyzed result is transmitted to a communication terminal carried by an operator through the ad hoc network in a wireless mode, and the operator can directly forward the failed petrochemical machine pump for maintenance when receiving the information according to the analysis result; the intelligent degree of the design of the whole device is high, the operator is not required to carry out regular inspection, the received fault diagnosis result is directly used for carrying out targeted maintenance on the device, the labor intensity of the operator is reduced, and the normal and stable operation of the petrochemical machine pump group is effectively ensured.
2) The temperature detection in the temperature monitoring device disclosed by the invention is directly inserted into the motor of the pump, so that the temperature during the operation of the motor can be accurately monitored and collected; according to the mechanical seal monitoring device, the sealing inner cavity is formed in the mechanical seal, the hydraulic sensor is arranged in the sealing inner cavity, and when the mechanical seal is damaged, liquid conveyed into the sealing inner cavity can enter the sealing inner cavity, and at the moment, the hydraulic sensor can feed back signals to the converter, and the converter can timely convey information to the CPU; when the running vibration monitoring device detects the machine pump, the permanent magnet can move up and down in the spiral coil when the machine pump vibrates, current is generated through the magnetic induction principle, the generated current can be captured by the current sensor in time and conveyed to the CPU, and meanwhile, the running vibration monitoring device also has a buffering and damping effect on the running of the whole machine pump; the flow monitoring device can monitor the flow of the oil transportation branch pipe and the oil transportation main pipe in real time and then analyze the flow value so as to obtain whether oil leakage occurs in the oil transportation pipe or not; the device for monitoring the parameters of the pump is ingenious in design, can accurately collect the parameters of the pump, can ensure the accuracy of the final analysis result, and ensures that the whole petrochemical pump group operation monitoring and fault diagnosis device is more reliable in monitoring effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic diagram of the perspective structure of a pump group comprising petrochemical pumps according to the present invention;
FIG. 3 is a schematic diagram of a petrochemical pump and an operation vibration monitoring device in a three-dimensional structure;
FIG. 4 is a schematic view of a disassembled and assembled three-dimensional structure of an operation vibration monitoring device according to the present invention;
FIG. 5 is a schematic view of the internal plan structure of the vibration monitoring device of the present invention;
FIG. 6 is a schematic view of the internal planar structure of the pump body of the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 8 is a schematic view showing an internal planar structure of the first flow rate detector or the second flow rate detector according to the present invention;
FIG. 9 is a schematic perspective view of a control cabinet according to the present invention;
FIG. 10 is a schematic view of the internal perspective structure of the control cabinet of the present invention;
fig. 11 is a flowchart illustrating steps of a management method according to the present invention based on the above-mentioned device.
Wherein:
1-petrochemical engineering machine pump, 100-machine pump seat, 101-machine pump motor, 102-pump body, 103-pump shaft, 104-impeller, 105-mechanical seal assembly, 1051-airtight space, 106-oil transportation branch pipe, 107-oil transportation main pipe, 108-first flow detector, 1081-connecting pipe, 1082-pressure sensor, 1083-swing water-blocking plate, 1084-second spring and 109-second flow detector;
2-temperature monitoring device, 201-mounting block, 202-temperature sensor;
3-pump mechanical seal monitoring device, 301-hydraulic sensor, 302-converter;
4-running vibration monitoring device, 401-upright, 402-sleeve, 403-permanent magnet, 404-end block, 405-first spring, 406-spiral coil, 407-current sensor;
5-a flow monitoring device;
the intelligent cabinet temperature control system comprises a 10-control cabinet, a 11-connector, a 12-storage battery, a 13-processor CPU, a 14-wireless transmission module, a 15-storage module, a 16-cabinet door, a 17-radiating hole, a 18-air inlet pipe, a 19-radiating fan, a 20-horizontal mounting plate and a 21-mounting bottom plate.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.
It should be noted that in the description of the present invention, the terms "first," "second," and the like are merely used for convenience in describing the various components and are not to be construed as indicating or implying a sequential relationship, relative importance or implying any particular order among or order among such features. Thus, a feature defining "a first", "a second" or the like may include at least one such feature explicitly or implicitly.
The system for monitoring the operation of the pump group and diagnosing faults of the petrochemical machine based on the self-organizing network according to the present invention will be described in detail with reference to the accompanying drawings 1 to 11.
Example 1
The embodiment 1 discloses a petrochemical machine pump group operation monitoring and fault diagnosis system based on an ad hoc network, which mainly comprises a control cabinet 10, a portable receiving terminal and a machine pump group consisting of a plurality of petrochemical machine pumps 1. Each petrochemical machine pump 1 is provided with a temperature monitoring device 2, a pump body mechanical seal monitoring device 3, an operation vibration monitoring device 4 and a flow monitoring device 5 for monitoring the flow of the single petrochemical machine pump 1 and the total flow of the monitoring machine pump group.
Referring to fig. 2, a plurality of petrochemical machine pumps 1 are arranged in a row to form a machine pump group, a mounting base plate 21 is arranged below the petrochemical machine pumps 1 in a row, and an organic pump seat 100 is arranged at the lower end of each petrochemical machine pump 1.
Referring to fig. 2, 3, 4 and 5, the operation vibration monitoring device 4 includes four columns 401 disposed on the lower surface of the pump base 100 and four sleeves 402 disposed on the mounting base 21 and corresponding to each column 401, and the four columns 301 connected to the lower surface of the pump base 100 are disposed at four corners of the lower surface of the pump base 100. A cylindrical permanent magnet 403 is connected to the lower end of each upright 401, an end block 404 matched with the sleeve 402 is connected to the lower end of the permanent magnet 403, a first spring 405 is connected to the lower end of the end block 404, and the lower end of the first spring 405 is connected to the bottom wall of the sleeve 402. A spiral coil 406 is arranged inside the sleeve 402 positioned at the same height of the permanent magnet 403, a current sensor 407 is arranged on the outer surface of the sleeve 402, and two ends of the spiral coil 406 are connected with the current sensor 407. When the petrochemical pump 1 vibrates in the running process, the permanent magnet 403 is driven to move up and down in the spiral coil 406, then the current detected by the current sensor 407 is enabled to be detected through the principle of magneto electricity generation, and the amplitude of vibration can be judged through the amplitude of the current.
Referring to fig. 2 and 6, the petrochemical machine pump 1 includes a machine pump motor 101, a pump body 102, a pump shaft 103 and an impeller 104, an output shaft of the machine pump motor 101 is connected with the pump shaft 103, and an end portion of the pump shaft 103 extending into the pump body 102 is connected with the impeller 104. A mechanical seal assembly 105 is arranged in the pump body 102 between the pump motor 101 and the impeller 104, a closed space 1051 is arranged in the mechanical seal assembly 105 near one end of the impeller 104, the pump body mechanical seal monitoring device 3 comprises a hydraulic sensor 301 arranged in the closed space 1051, and a converter 302 connected with the hydraulic sensor 301 is arranged at the upper end of the pump body 102. When the petrochemical pump 1 is damaged, its liquid enters the enclosed space 1051, its hydraulic pressure sensor 301 receives the hydraulic pressure, and feeds back the information through the converter 302.
Referring to fig. 3, the temperature monitoring device 2 includes a mounting block 201 and a temperature sensor 202, wherein the mounting block 201 is arranged at the upper end of the pump motor 101, a jack capable of being inserted into the pump motor 101 is formed in the mounting block 201, and a temperature probe on the temperature sensor 202 is extended into the pump motor 101 through the jack. In addition, referring to fig. 2 and 7, the liquid outlet end of the petrochemical pumps 1 is connected with an oil delivery branch pipe 106, the end parts of the oil delivery branch pipes 106 are connected with an oil delivery main pipe 107, and the flow monitoring device 5 comprises a first flow detector 108 and a second flow detector 109 which are respectively arranged on the oil delivery branch pipe 106 and the oil delivery main pipe 107.
Referring to fig. 8, the first flow detector 108 and the second flow detector 109 each include a connecting tube 1081 with two wide ends and a narrow middle, a pressure sensor 1082 is disposed on an upper inner wall of the connecting tube 1081, a swinging water-blocking plate 1083 is rotatably connected to a side of the pressure sensor 1082, a second spring 1084 is connected between the swinging water-blocking plate 1083 and the pressure sensor 1082, and an electrical connection is formed between the pressure sensor 1082 and the connector 11.
Referring to fig. 9 and 10, a connector 11 electrically connected to a current sensor 307, a converter 302, a temperature sensor 202, a first flow detector 108 and a second flow detector 109 is disposed on an outer side surface of the control cabinet 10, a storage battery 12 is disposed at an inner lower end of the control cabinet 10, a processor CPU13 is disposed on a side wall of the control cabinet 10 above the storage battery 12, the connector 11 is electrically connected to the processor CPU13, a wireless transmission module 14 and a storage module 15 are disposed on an inner wall of the control cabinet 10 above the processor CPU13, and the wireless transmission module 14 is wirelessly connected to a portable receiving terminal through an ad hoc network.
Example 2
Embodiment 2 discloses a petrochemical machine pump group operation monitoring and fault diagnosis system based on the self-organizing network after the improvement based on embodiment 1, which is the same as embodiment 1 and is not explained again, and the difference is that:
the outer surface of the pressure sensor 1082 disposed inside the adapter 1081 is further coated with a corrosion-resistant layer, so that the pressure sensor 1082 in contact with petroleum for a long time is protected, and the service life of the pressure sensor 1082 is prolonged.
In addition, in embodiment 2, the sealant is filled between the temperature probe and the jack on the temperature sensor 202, so that the pump motor 101 still has excellent waterproof performance after the temperature sensor 202 is arranged.
The control cabinet 10 in embodiment 2 has a rectangular opening formed in the front side thereof, a cabinet door 16 is rotatably connected in the rectangular opening through a hinge, and a cabinet lock is provided between the cabinet door 16 and the control cabinet 10. Meanwhile, a plurality of groups of heat dissipation holes 17 are formed in the upper surface of the control cabinet 10. And the left and right sides at the rear side lower extreme of control cabinet 10 all are provided with air-supply line 18, are provided with radiator fan 19 in the air-supply line 18, can fully dispel the heat the cooling to the inside electronic device of control cabinet 10 through louvre 17, radiator fan 19. And in the concrete setting, the middle of the rear side of the control cabinet 10 is connected with a horizontal mounting plate 20 through screws, the CPU13 is arranged on the upper surface of the horizontal mounting plate 20, and cold air which moves up and down can effectively dissipate heat of the CPU.
The invention also discloses a processing method of the petrochemical machine pump group operation monitoring and fault diagnosis device, which comprises the following steps:
step 1: the temperature, mechanical tightness, vibration state, single conveying flow and total flow of each petrochemical machine pump are acquired in interval time periods through a temperature monitoring device, a pump mechanical seal monitoring device, an operation vibration monitoring device and a flow monitoring device which are arranged on each petrochemical machine pump;
step 2: the temperature monitoring device, the pump mechanical seal monitoring device, the operation vibration monitoring device and the flow monitoring device transmit collected data to the CPU, and the CPU compares the collected data with standard data in the storage module;
step 3: when the collected data is in the range of the standard data, the pump of the petrochemical machine is indicated to normally operate, and only the collected data is stored in the storage module;
step 4: when the acquired data exceeds the standard data range, the operation of the petrochemical pump is abnormal, at the moment, the CPU analyzes and diagnoses the fault reason according to the abnormal data, then the serial number and the fault reason of the petrochemical pump with specific faults are sent to the portable receiving terminal through the wireless transmission module, and an operator maintains the petrochemical pump on site according to the indication after receiving the information through the portable receiving terminal.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (2)

1. The system is characterized by comprising a control cabinet (10), a portable receiving terminal, a machine pump group consisting of a plurality of petrochemical machine pumps (1), a temperature monitoring device (2) arranged on each petrochemical machine pump (1), a pump body mechanical seal monitoring device (3) arranged on each petrochemical machine pump (1), an operation vibration monitoring device (4) arranged on each petrochemical machine pump (1), and a flow monitoring device (5) for monitoring the flow of an individual petrochemical machine pump (1) and the total flow of the monitoring machine pump group;
the petrochemical engineering machine pumps (1) are orderly arranged in a row, a mounting bottom plate (21) is arranged below the petrochemical engineering machine pumps (1), an organic pump seat (100) is arranged at the lower end of each petrochemical engineering machine pump (1), the operation vibration monitoring device (4) comprises upright posts (401) arranged on the lower surface of the machine pump seat (100) and sleeves (402) arranged on the mounting bottom plate (21) and corresponding to each upright post (401), cylindrical permanent magnets (403) are connected to the lower ends of the upright posts (401), end blocks (404) matched with the sleeves (402) are connected to the lower ends of the permanent magnets (403), first springs (405) are connected to the lower ends of the end blocks (404), spiral coils (406) are arranged inside the sleeves (402) which are positioned at the same height of the permanent magnets (403), current sensors (406) are arranged on the outer surfaces of the sleeves (402), and the two ends of each spiral coil (406) are connected to the corresponding current sensors (407);
the petrochemical engineering machine pump (1) comprises a machine pump motor (101), a pump body (102), a pump shaft (103) and an impeller (104), an output shaft of the machine pump motor (101) is connected with the pump shaft (103), the end part of the pump shaft (103) extending into the pump body (102) is connected with the impeller (104), a mechanical seal assembly (105) is arranged in the pump body (102) between the machine pump motor (101) and the impeller (104), a closed space (1051) is arranged in the pump body (102) close to one end of the impeller (104), the pump body mechanical seal monitoring device (3) comprises a hydraulic sensor (301) arranged in the closed space (1051), and a converter (302) connected with the hydraulic sensor (301) is arranged at the upper end of the pump body (102);
the temperature monitoring device (2) comprises a mounting block (201) and a temperature sensor (202), wherein the mounting block (201) is arranged at the upper end of the machine pump motor (101), and the mounting block (201) is provided with a plug-in machine pump motor (101)
An internal jack through which a temperature probe on the temperature sensor (202) extends into the interior of the pump motor (101);
the liquid outlet ends of the petrochemical machine pumps (1) are connected with oil delivery branch pipes (106), the end parts of the oil delivery branch pipes (106) are connected with oil delivery main pipes (107), and the flow monitoring device (5) comprises a first flow detector (108) and a second flow detector (109) which are respectively arranged on the oil delivery branch pipes (106) and the oil delivery main pipes (107);
the intelligent control system comprises a control cabinet (10), wherein the outer side face of the control cabinet (10) is provided with a connector (11) which is electrically connected with a current sensor (407), a converter (302), a temperature sensor (202), a first flow detector (108) and a second flow detector (109), the lower end of the interior of the control cabinet (10) is provided with a storage battery (12), the side wall of the control cabinet (10) above the storage battery (12) is provided with a processor CPU (13), the connector (11) is electrically connected with the processor CPU (13), the inner wall of the control cabinet (10) above the processor CPU (13) is provided with a wireless transmission module (14) and a storage module (15), and the wireless transmission module (14) is in wireless connection with a portable receiving terminal through an ad hoc network; the first flow detector (108) and the second flow detector (109) comprise connecting pipes (1081) with wide ends and narrow middle parts, a pressure sensor (1082) is arranged on the upper inner wall of each connecting pipe (1081), a swinging water blocking plate (1083) is rotatably connected to the side of each pressure sensor (1082), a second spring (1084) is connected between each swinging water blocking plate (1083) and each pressure sensor (1082), and each pressure sensor (1082) is electrically connected with a connector (11);
the outer surface of the pressure sensor (1082) arranged inside the connecting pipe (1081) is coated with a corrosion-resistant layer;
four upright posts (401) are connected with the lower surface of each pump seat (100), and are distributed at four corners of the lower surface of the pump seat (100);
sealant is filled between the temperature probe and the jack on the temperature sensor (202);
a rectangular opening is formed in the front side surface of the control cabinet (10), a cabinet door (16) is rotatably connected in the rectangular opening through a hinge, and a cabinet lock is arranged between the cabinet door (16) and the control cabinet (10);
the upper surface of the control cabinet (10) is provided with a plurality of groups of heat dissipation holes (17);
air inlet pipes (18) are arranged on the left side and the right side of the lower end of the rear side surface of the control cabinet (10), and a heat radiation fan (19) is arranged in the air inlet pipes (18);
the middle of the rear side face of the control cabinet (10) is connected with a horizontal mounting plate (20) through screws, and the processor CPU (13) is arranged on the upper surface of the horizontal mounting plate (20).
2. A method for processing the system for monitoring the operation of the pump group and diagnosing faults of the petrochemical machine based on the self-organizing network according to claim 1, which is characterized by comprising the following steps:
1) The temperature, mechanical tightness, vibration state, single conveying flow and total flow of each petrochemical machine pump are acquired in interval time periods through a temperature monitoring device, a pump mechanical seal monitoring device, an operation vibration monitoring device and a flow monitoring device which are arranged on each petrochemical machine pump;
2) The temperature monitoring device, the pump mechanical seal monitoring device, the operation vibration monitoring device and the flow monitoring device transmit collected data to the CPU, and the CPU compares the collected data with standard data in the storage module;
3) When the collected data is in the range of the standard data, the pump of the petrochemical machine is indicated to normally operate, and only the collected data is stored in the storage module;
4) When the acquired data exceeds the standard data range, the operation of the petrochemical pump is abnormal, at the moment, the CPU analyzes and diagnoses the fault reason according to the abnormal data, then the serial number and the fault reason of the petrochemical pump with specific faults are sent to the portable receiving terminal through the wireless transmission module, and an operator maintains the petrochemical pump on site according to the indication after receiving the information through the portable receiving terminal.
CN202210221996.3A 2022-03-09 2022-03-09 Petrochemical machine pump group operation monitoring and fault diagnosis system and management method based on ad hoc network Active CN114776602B (en)

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CN116292321B (en) * 2023-05-24 2023-09-19 孚诺泽石油装备(山东)有限公司 Petrochemical machine pump with load abnormality early warning function

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CN110887536A (en) * 2019-12-09 2020-03-17 山东东禾农业科技有限公司 Water-blocking type flow measuring device
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CN104454482A (en) * 2014-10-23 2015-03-25 江西新德工业泵有限责任公司 Conveying pump provided with mechanical seal leakage detection device
CN204755337U (en) * 2015-07-06 2015-11-11 尹克敏 High power capacity lightweight flood -control and drought relief axial -flow pump
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