CN204984825U - Oil -field flooding pump intelligence diagnosis monitoring device - Google Patents

Abstract

The utility model provides an oil -field flooding pump intelligence diagnosis monitoring device, includes the PLC controller, sets up the check out test set on water injection pump and jointing equipment and set up operation panel and the display in the monitor, the check out test set passes through the input that field bus connects the PLC controller, and the display is connected through 485 connection AND operation platforms communication of each other, the output of operation panel to the PLC controller. The utility model discloses can carry out real time monitoring to the running state of water injection pump to associated data to annotating the water pump operation in -process carries out visual display, when the water injection pump broke down, the accessible was reported to the police and is reminded the operation personnel, and visual display trouble position and fault handling method in the display help the operation personnel to get rid of the water injection pump trouble fast simultaneously, improve work efficiency.

Description

An intelligent diagnosis and monitoring device for oilfield water injection pumps

technical field

The utility model relates to the technical field of oilfield equipment, in particular to a device for monitoring an oilfield water injection pump.

Background technique

Water flooding is one of the most common and important oil recovery techniques in oilfields at present, which can maintain high and stable production in oilfields. The water injection pump station is an important production unit in the process of oilfield development and production. However, due to the high pressure and large water volume, the motor used in the water injection pump has been in a state of high energy consumption for a long time. It has become the main energy-consuming equipment in oilfield production, accounting for about About 70% of the energy consumption; in order to reduce energy consumption, the outlet pressure of the water injection pump is generally adjusted by controlling the regulating valve, and manual adjustment is performed by the operator to observe the pressure of the pressure gauge at any time during operation, which not only reduces work efficiency, but also saves energy consumption limited.

For many years, most oilfield water injection stations have been using manual data entry and equipment inspection systems. The water injection pump units and their auxiliary equipment have not been able to achieve real-time monitoring of the operating status, and the predictive maintenance capabilities of the equipment are poor. The number of revolutions, temperature, noise, and efficiency have not been tested, resulting in problems such as low efficiency, high energy consumption, high failure rate, and slow information feedback speed of the water injection pumping station system. In recent years, with the development of computer technology, some oil fields have begun to realize the automatic monitoring of water injection pump stations, but most of the existing water injection pump monitoring equipment only monitor the process flow, such as pipeline outlet pressure, pipeline outlet flow, etc., information collection Due to the small amount, it is impossible to comprehensively monitor the faults of the water injection pump and the equipment connected to the water injection pump, and even if the water injection pump fails, the fault content cannot be prompted. The fault can only be determined by disassembling the water injection pump, which is not only difficult to maintain , The maintenance cost is high, and the service life of the water injection pump is also reduced.

Utility model content

The technical problem to be solved by the utility model is to provide a monitoring device with a large amount of data collection, which can monitor the running status of the water injection pump and its connected equipment in real time and give a fault alarm.

In order to solve the problems of the technologies described above, the technical solutions adopted by the utility model are as follows.

An intelligent diagnosis and monitoring device for an oilfield water injection pump, comprising a PLC controller, detection equipment arranged on the water injection pump and its connected equipment, and an operating console and a display arranged in a monitoring room, the detection equipment is connected to the PLC controller through a field bus At the input end, the PLC controller communicates with the operating console through the 485 communication line, and the output end of the operating console is connected to the display.

In the above intelligent diagnosis and monitoring device for oil field water injection pumps, the detection equipment includes a temperature sensor group for monitoring the temperature value of the water injection pump and its connected equipment, a noise sensor group for monitoring the operating noise of the water injection pump, and a sensor for monitoring the lubricating oil of the water injection pump. Oil sensor and liquid level sensor, a vibration sensor group for monitoring the vibration of the water injection pump, a speed sensor for monitoring the speed of the water injection pump, a pressure sensor group for monitoring the inlet and outlet water pressure of the water injection pump, and a flow sensor for the inlet and outlet water flow group; the data lines of each sensor group are respectively connected to the input terminals of the PLC controller.

In the above intelligent diagnosis and monitoring device for oilfield water injection pumps, the temperature sensor group includes a motor bearing temperature sensor arranged on the water injection pump motor, a lubricating oil temperature sensor arranged at the power end of the water injection pump, and three crosshead temperature sensors arranged at the power end of the water injection pump .

In the above intelligent diagnosis and monitoring device for oilfield water injection pumps, the noise sensor group includes a power end noise sensor arranged at the power end of the water injection pump and a pump head noise sensor arranged at the pump head.

In the above intelligent diagnosis and monitoring device for oilfield water injection pumps, the vibration sensor group includes a power end vibration sensor installed at the water injection pump power end and a pump head vibration sensor installed at the pump head, both of which use XYZ triaxial vibration sensors.

In the above intelligent diagnosis and monitoring device for oilfield water injection pumps, the detection equipment further includes a leakage detector installed at the solenoid valve of the pump head, and an oil level sensor and a liquid level sensor installed at the power end of the water injection pump.

In the above intelligent diagnosis and monitoring device for oilfield water injection pumps, the operation console is also connected to the frequency conversion control cabinet of the water injection pump through the 485 communication line.

Due to the adoption of the above technical solutions, the technical progress achieved by the utility model is as follows.

The utility model can monitor the running state of the water injection pump in real time, and visually display the relevant data during the operation of the water injection pump; when the water injection pump breaks down, the operator can be reminded by an alarm, and at the same time, the fault location can be visually displayed on the display The location and troubleshooting methods help operators quickly troubleshoot water injection pumps and improve work efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a diagram of the installation positions of each detection device on the water injection pump in the utility model.

The labels in the figure are represented as: A. Motor, B. Belt, C. Power end, D. Pump head, E. Water inlet pipeline, F. Water outlet pipeline, G. Solenoid valve;

1. Motor bearing temperature sensor, 2. Speed sensor, 3. Oil sensor, 4. Liquid level sensor, 5. Power end vibration sensor, 6. Infrared sensor, 7. Lubricating oil temperature sensor, 8. Power end noise sensor, 9. Crosshead temperature sensor, 10. Pump head noise sensor, 11. Leakage detector, 12. Pump head vibration sensor, 13. Inlet flowmeter, 14. Inlet pressure sensor, 15. Outlet flowmeter, 16. Outlet pressure sensor.

In the figure, the direction of the arrow is the direction of water flow.

detailed description

The utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model provides an intelligent diagnosis and monitoring device for an oil field water injection pump, the principle of which is shown in Figure 1. The detection equipment is connected to the input end of the PLC controller through the field bus, the PLC controller communicates with the operation console through the 485 communication line, and the output end of the operation console is connected to the display.

The detection equipment includes a temperature sensor group, a noise sensor group, a vibration sensor group, a flow sensor group, a pressure sensor group, a speed sensor 2, an oil product sensor 3, a liquid level sensor 4, a leakage detector 11 and an infrared sensor 6. The data lines of each sensor are respectively connected to the input end of the PLC controller, and the installation position of each sensor on the water injection pump is shown in Figure 2, and the details are as follows.

The temperature sensor group is used to monitor the temperature value of the water injection pump and its connected equipment, including the motor bearing temperature sensor 1 set on the water injection pump motor A, the lubricating oil temperature sensor 7 set on the power end C of the water injection pump, and the power sensor 7 set on the power end of the water injection pump. Three crosshead temperature sensors 9 at terminal C.

The noise sensor group is used to monitor the running noise of the water injection pump, including a power end noise sensor 8 set at the power end C of the water injection pump and a pump head noise sensor 10 set at the pump head D. In this embodiment, three pump head noise sensors 10 are provided in total, which are respectively located at the left, middle and right parts of the pump head.

The oil sensor 3 is used to monitor the quality of the lubricating oil of the water injection pump, the liquid level sensor 4 is used to monitor the liquid level of the lubricating oil of the water injection pump, the infrared sensor 6 is used to monitor the crankshaft temperature value of the power end of the water injection pump, the oil sensor, the liquid level sensor and infrared sensors are arranged at the power end of the water injection pump.

The vibration sensor group is used to monitor the vibration of the water injection pump running, including the power end vibration sensor 5 arranged at the power end of the water injection pump and the pump head vibration sensor 12 arranged at the pump head. In this embodiment, both the vibration sensor 5 at the power end and the vibration sensor 12 at the pump head use an XYZ three-axis vibration sensor.

The rotational speed sensor 2 is used to monitor the rotational speed of the water injection pump, and is arranged at the input end of the power end of the water injection pump.

The pressure sensor group is used to monitor the inlet and outlet water pressure of the water injection pump, including the inlet pressure sensor 14 arranged on the water inlet pipeline E and the outlet pressure sensor 16 arranged on the water outlet pipeline F; the flow sensor group is used to monitor the inlet and outlet water pressure of the water injection pump The flow rate includes an inlet flowmeter 13 set on the water inlet line E and an outlet flowmeter 15 set on the water outlet line F.

The utility model is also provided with a leakage detector 11 at the electromagnetic valve of the pump head, which is used to monitor the water leakage of the water injection pump.

The operation console is also connected to the frequency conversion control cabinet of the water injection pump through the 485 communication line, which is used to collect the working voltage and current of the water injection pump, so as to realize the operation state adjustment and overload protection of the water injection pump under the control of the operation console.

When the utility model works, each detection device collects various data of the water injection pump, and transmits the collected 4~20mA signal to the AI311 module of the PLC controller through the field bus, and converts each analog signal into a digital signal through the AI311 module, The PLC controller calculates the received digital signal and compares it with the standard value. When there are multiple similar data at a certain monitoring point, the average value can be compared with the standard value; when there is a large difference between the data and the standard value At the same time, the PLC controller transmits to the operation console through the 485 communication line, and gives an early warning of the fault location and a prompt for the problem handling method on the display. Through the early warning information, the problem can be accurately found for maintenance, reducing the troubleshooting time and improving the efficiency of personnel, which greatly improves the management of the problem. Maintenance efficiency of water injection pumps.

The utility model is used for daily monitoring and maintenance of the water injection pump, and problems such as loosening of a certain screw, oil leakage and water leakage of the packing can be found in time, the working efficiency of the water injection pump can be improved, the power consumption can be reduced, and even the abnormality of the water injection pump can be avoided due to unawareness. As a result, the long-term operation of the water injection pump will eventually cause major failures and shutdowns.

Claims (7)

1. An intelligent diagnosis and monitoring device for an oilfield water injection pump, characterized in that: it comprises a PLC controller, detection equipment arranged on the water injection pump and its connection equipment, and an operating console and a display arranged in a monitoring room, and the detection equipment passes through the on-site The bus is connected to the input end of the PLC controller, the PLC controller communicates with the operating console through the 485 communication line, and the output end of the operating console is connected to the display. 2. An intelligent diagnosis and monitoring device for oilfield water injection pumps according to claim 1, characterized in that: the detection equipment includes a temperature sensor group for monitoring the temperature value of the water injection pump and its connected equipment, for monitoring the operation of the water injection pump Noise sensor group for noise, oil sensor and liquid level sensor for monitoring the lubricating oil of the water injection pump, vibration sensor group for monitoring the vibration of the water injection pump, speed sensor for monitoring the speed of the water injection pump, monitoring the water injection pump A pressure sensor group for inlet and outlet water pressure and a flow sensor group for inlet and outlet water flow; the data lines of each sensor are respectively connected to the input ends of the PLC controller. 3. An intelligent diagnosis and monitoring device for oilfield water injection pumps according to claim 2, characterized in that: the temperature sensor group includes a motor bearing temperature sensor (1) installed on the motor of the water injection pump, and a temperature sensor (1) installed at the power end of the water injection pump. Lubricating oil temperature sensor (7) and three crosshead temperature sensors (9) arranged at the power end of the water injection pump. 4. An intelligent diagnosis and monitoring device for oilfield water injection pumps according to claim 3, characterized in that: the noise sensor group includes a power end noise sensor (8) installed at the power end of the water injection pump and a pump head installed at the pump head Noise sensor (10). 5. An intelligent diagnosis and monitoring device for oilfield water injection pumps according to claim 4, characterized in that: the vibration sensor group includes a power end vibration sensor (5) installed at the power end of the water injection pump and a pump head installed at the pump head Vibration sensors (12) all adopt XYZ three-axis vibration sensors. 6. An intelligent diagnosis and monitoring device for oilfield water injection pumps according to claim 5, characterized in that: the detection equipment also includes a leakage detector (11) installed at the electromagnetic valve of the pump head and a water injection pump power Oil level sensor (3) and liquid level sensor (4) at the end. 7. The intelligent diagnosis and monitoring device for oilfield water injection pumps according to any one of claims 1 to 6, characterized in that: the operating console is also connected to the frequency conversion control cabinet of the water injection pump through the 485 communication line.