Power equipment fault monitoring and alarming equipment for oil field

Abstract

The invention discloses power equipment fault monitoring and alarming equipment for an oil field, and belongs to the technical field of fault monitoring and alarming. The power equipment fault monitoring and alarming equipment comprises a mounting base, two suction cups are mounted on the rear side of the mounting base, a buzzer and a PLC are mounted on the front side of the mounting base, an optical fiber temperature sensor is connected to the PLC, and the optical fiber temperature sensor is connected to the mounting base. A fixing plate is fixedly mounted on the front side of the mounting base, a rectangular pipe is mounted at the top of the fixing plate, a fan is arranged in the rectangular pipe, an electric telescopic rod is mounted at the top of the rectangular pipe, a fixing block is mounted at the output end of the electric telescopic rod, and the optical fiber temperature sensor is mounted on the fixing block. An optical fiber cable is connected between the optical fiber temperature sensor and the PLC, and a conical shell is installed at the front end of the rectangular pipe. According to the invention, monitoring and alarm can be carried out on the power equipment, the power equipment can be rapidly cooled, and greater hidden dangers are avoided.

Description

Technical Field

[0001] This invention belongs to the field of fault monitoring and alarm technology, specifically, it relates to a fault monitoring and alarm device for power equipment used in oil fields. Background Technology

[0002] Electrical equipment mainly includes two categories: power generation equipment and power supply equipment. Power generation equipment mainly includes power plant boilers, steam turbines, gas turbines, water turbines, generators, transformers, etc. Power supply equipment mainly includes transmission lines of various voltage levels, instrument transformers, contactors, etc. There are many electrical devices in a power system. Based on their different roles in operation, they are usually divided into primary electrical equipment and secondary electrical equipment. Many electrical devices in industrial and agricultural production (such as high-voltage switchgear and high-voltage cables) operate under high voltage and high current conditions. Due to mechanical vibration and contact erosion during use, the temperature at the contact points may rise, causing oxidation and further increasing contact resistance and temperature. This can lead to localized welding, sparks, or even arc discharge, damaging surrounding insulation materials and ultimately causing damage to the electrical equipment and accidents. Among numerous power accidents, power outages due to localized equipment overheating are frequent. Therefore, monitoring the temperature of electrical equipment and implementing power equipment operation status monitoring and fault diagnosis technologies are of great significance. However, most existing fault monitoring and alarm devices are integrally molded with the electrical equipment enclosure, greatly reducing their applicability.

[0003] A search revealed that patent document CN108955945A discloses a power equipment fault monitoring and alarm device, comprising a mounting base, a housing, a cavity controller, a partition, an electric telescopic rod, a telescopic rod base, a fiber optic temperature sensor, a curtain, a switch, a buzzer, a suction cup, a sealing lip, an exhaust pipe, and a nut. The housing is located on one side of the mounting base, and the cavity is located inside the housing. The controller is located on the surface of the cavity, and the partition is located at the top of the controller. The electric telescopic rod is located at the top of the partition, with the telescopic rod base at one end and the fiber optic temperature sensor at the other end. An inlet / outlet of the same size as the fiber optic temperature sensor is located on the side of the housing, and the curtain is located on the surface of the inlet / outlet. The buzzer is also located on the surface of the mounting base. The suction cup is located on the other side of the mounting base. By placing the fault monitoring and alarm device on the surface of a movable mounting base, the device can perform fault monitoring and alarm functions for different power equipment enclosures.

[0004] However, existing fault monitoring can only perform high temperature early warning monitoring. When a high temperature fault is detected, it cannot implement cooling in a timely and effective manner, which poses a risk of causing greater safety hazards.

[0005] To address the aforementioned issues, this application proposes a fault monitoring and alarm device for power equipment used in oil fields. Summary of the Invention

[0006] In response to the problems in related technologies, this invention proposes a fault monitoring and alarm device for power equipment in oil fields to overcome the aforementioned technical problems existing in the existing related technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An oilfield power equipment fault monitoring and alarm device includes a mounting base. Two suction cups are mounted on the rear side of the mounting base. A buzzer and a PLC controller are mounted on the front side of the mounting base. A fiber optic temperature sensor is connected to the PLC controller. A fixing plate is fixedly mounted on the front side of the mounting base. A rectangular tube is mounted on the top of the fixing plate. A fan is installed inside the rectangular tube. An electric telescopic rod is mounted on the top of the rectangular tube. A fixing block is mounted on the output end of the electric telescopic rod. The fiber optic temperature sensor is mounted on the fixing block.

[0009] Preferably, an optical fiber cable connects the optical fiber temperature sensor to the PLC controller.

[0010] The temperature monitored by the fiber optic temperature sensor can be transmitted to the PLC controller via fiber optic cable.

[0011] Preferably, a conical shell is installed at the front end of the rectangular tube, and an air vent is provided at the front end of the conical shell.

[0012] By using a fan to expel air through a conical shell, electrical equipment can be cooled down.

[0013] Preferably, a servo motor is installed at the bottom of the fixed plate, and a rotating shaft is installed on the output shaft of the servo motor. The rotating shaft is rotatably mounted on the fixed plate, and the top end of the rotating shaft is fixedly installed to the bottom of the rectangular tube.

[0014] A servo motor drives a rectangular tube to rotate horizontally via a rotating shaft. The rectangular tube then drives a conical shell to rotate horizontally, causing the rectangular tube and the fiber optic temperature sensor to move synchronously. The rotation and movement of the fiber optic temperature sensor can adjust the horizontal position of the sensor.

[0015] Preferably, a semiconductor cooler is embedded in the top of the rectangular tube, the cooling surface of the semiconductor cooler is located inside the rectangular tube and behind the fan, and the heat dissipation surface of the semiconductor cooler is located outside the rectangular tube.

[0016] By using the cooling surface of a semiconductor cooler to cool the air inside a rectangular tube, a fan can use cold air to cool electrical equipment, achieving the purpose of rapid cooling.

[0017] Preferably, a sealing shell is installed on the outer side of the semiconductor cooler at the top of the rectangular tube. An air inlet bend is connected to the front side of the sealing shell, and the air inlet of the air inlet bend is located in front of the fan. An exhaust pipe is connected to the rear side of the sealing shell, and the exhaust pipe extends to the rear side of the mounting base.

[0018] When the fan is working, some airflow enters the sealed housing through the intake bend to cool the heat dissipation surface of the thermoelectric cooler. The exhaust pipe extends to the outside of the electrical equipment to discharge the airflow inside the sealed housing, which can cool the heat dissipation surface of the thermoelectric cooler and prevent damage to the thermoelectric cooler due to high temperature.

[0019] Preferably, the servo motor has a rotation angle range of 0°-180° and a rotation angular velocity of 10°-30° / s. A deep groove ball bearing (inner diameter 10-15mm, outer diameter 25-35mm) is provided at the rotation connection between the rotating shaft and the fixed plate. The outer ring of the bearing is interference-fitted with the fixed plate to ensure that the radial runout during rotation is ≤0.1mm.

[0020] Preferably, the semiconductor cooler has a cooling power of 50-100W, an operating voltage of 12-24V, a distance of 5-10mm between the cooling surface and the inside of the rectangular tube, and aluminum heat dissipation fins (0.3-0.5mm thick, 2-3mm spacing) attached to the heat dissipation surface, with a fin height of 15-20mm.

[0021] Preferably, the electric telescopic rod has a telescopic stroke of 50-150mm and a telescopic speed of 20-50mm / s. The connection between the fixing block and the fiber optic temperature sensor is fixed with M3-M4 screws. The minimum distance between the sensor detection end and the power equipment can be adjusted to 5-10mm, and the detection accuracy is ±0.5℃.

[0022] Preferably, the air intake bend is made of PVC material (inner diameter 10-15mm), with a bending radius ≥30mm, and a dust filter (mesh size 80-100 mesh) is installed at the air intake; the exhaust pipe is 200-300mm long, with 4-6 exhaust holes of 3-5mm in diameter at the end to ensure that the heat dissipation airflow velocity is ≥1m / s.

[0023] In summary, the technical effects and advantages of this invention are as follows:

[0024] The temperature of the power equipment is monitored by a fiber optic temperature sensor and transmitted to the PLC controller. If the temperature is too high, the PLC controller controls the buzzer to sound an alarm. The fan blows air through the conical shell to cool the power equipment. The cooling surface of the semiconductor cooler cools the air inside the rectangular tube, so that the fan can use cold air to cool the power equipment and achieve the purpose of rapid cooling.

[0025] When the fan is working, some airflow enters the sealed housing through the intake bend to cool the heat dissipation surface of the thermoelectric cooler. The exhaust pipe extends to the outside of the electrical equipment to discharge the airflow inside the sealed housing, which can cool the heat dissipation surface of the thermoelectric cooler and prevent the thermoelectric cooler from being damaged by high temperature.

[0026] A servo motor drives a rectangular tube to rotate horizontally via a rotating shaft. The rectangular tube then drives a conical shell to rotate horizontally, allowing the rectangular tube and the fiber optic temperature sensor to move synchronously. The rotation and movement of the fiber optic temperature sensor allows for adjustment of the detection's horizontal position.

[0027] This invention can not only monitor and alarm electrical equipment, but also quickly cool down electrical equipment to avoid causing greater hidden dangers. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 For the present invention Figure 1 A schematic diagram of the structure viewed from below;

[0030] Figure 3 For the present invention Figure 1 A schematic diagram of the left-side view structure;

[0031] Figure 4 This is a schematic diagram of the disassembly of the sealing shell and conical shell and their related parts in this invention;

[0032] Figure 5 This is a three-dimensional structural diagram of the fan of the present invention;

[0033] Figure 6 This is a three-dimensional structural diagram of the conical shell of the present invention.

[0034] In the picture:

[0035] 1. Mounting base; 2. Suction cup; 3. Fixing plate; 4. Rectangular tube; 5. Fan; 6. Conical shell; 7. Electric telescopic rod; 8. Fixing block; 9. Fiber optic temperature sensor; 10. Fiber optic cable; 11. PLC controller; 12. Buzzer; 13. Servo motor; 14. Semiconductor cooler; 15. Sealing shell; 16. Exhaust pipe; 17. Inlet bend. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] Reference Figure 1-6An oilfield power equipment fault monitoring and alarm device includes a mounting base 1. Two suction cups 2 are mounted on the rear side of the mounting base 1. A buzzer 12 and a PLC controller 11 are mounted on the front side of the mounting base 1. An optical fiber temperature sensor 9 is connected to the PLC controller 11. A fixing plate 3 is fixedly mounted on the front side of the mounting base 1. A rectangular tube 4 is mounted on the top of the fixing plate 3. A fan 5 is installed inside the rectangular tube 4. An electric telescopic rod 7 is mounted on the top of the rectangular tube 4. A fixing block 8 is mounted on the output end of the electric telescopic rod 7. The optical fiber temperature sensor 9 is mounted on the fixing block 8.

[0038] Reference Figure 1 In this embodiment, an optical fiber cable 10 is connected between the optical fiber temperature sensor 9 and the PLC controller 11.

[0039] The temperature monitored by the fiber optic temperature sensor 9 can be transmitted to the PLC controller 11 via the fiber optic cable 10.

[0040] Reference Figure 6 In this embodiment, a conical shell 6 is installed at the front end of the rectangular tube 4, and an air outlet is reserved at the front end of the conical shell 6.

[0041] By having the fan 5 operate, airflow is discharged through the conical shell 6, which can cool down electrical equipment.

[0042] Reference Figure 2 In this embodiment, a servo motor 13 is installed at the bottom of the fixed plate 3, and a rotating shaft is installed on the output shaft of the servo motor 13. The rotating shaft is rotatably installed on the fixed plate 3, and the top end of the rotating shaft is fixedly installed to the bottom of the rectangular tube 4.

[0043] The servo motor 13 drives the rectangular tube 4 to rotate horizontally via a rotating shaft. The rectangular tube 4 then drives the conical shell 6 to rotate horizontally, causing the rectangular tube 4 to move synchronously with the fiber optic temperature sensor 9. The rotation and movement of the fiber optic temperature sensor 9 allows for adjustment of the detection horizontal position.

[0044] Reference Figure 4 In this embodiment, a semiconductor cooler 14 is embedded in the top of the rectangular tube 4. The cooling surface of the semiconductor cooler 14 is located inside the rectangular tube 4 and behind the fan 5, while the heat dissipation surface of the semiconductor cooler 14 is located outside the rectangular tube 4.

[0045] The cooling surface of the semiconductor cooler 14 cools the air inside the rectangular tube 4, enabling the fan 5 to use cold air to cool the electrical equipment and achieve rapid cooling.

[0046] Reference Figure 1 and Figure 3In this embodiment, a sealing shell 15 is installed on the outer side of the semiconductor cooler 14 at the top of the rectangular tube 4. The front side of the sealing shell 15 is connected to an air inlet bend 17, and the air inlet of the air inlet bend 17 is located in front of the fan 5. The rear side of the sealing shell 15 is connected to an exhaust pipe 16, which extends to the rear side of the mounting base 1.

[0047] When the fan 5 is working, some airflow enters the sealed housing 15 through the intake bend 17 to cool the heat dissipation surface of the thermoelectric cooler 14. The exhaust pipe 16 extends to the outside of the electrical equipment to discharge the airflow inside the sealed housing 15, which can cool the heat dissipation surface of the thermoelectric cooler 14 and prevent the thermoelectric cooler 14 from being damaged by high temperature.

[0048] In this invention, the rotation angle range of the servo motor 13 is 0°-180°, the rotation angular velocity is 10°-30° / s, and a deep groove ball bearing (inner diameter 10-15mm, outer diameter 25-35mm) is provided at the rotation connection between the rotating shaft and the fixed plate 3. The outer ring of the bearing is interference-fitted with the fixed plate 3 to ensure that the radial runout during rotation is ≤0.1mm.

[0049] In this invention, the cooling power of the semiconductor cooler 14 is 50-100W, the operating voltage is 12-24V, the distance between the cooling surface and the inside of the rectangular tube 4 is 5-10mm, and the heat dissipation surface is attached with aluminum heat dissipation fins (0.3-0.5mm thick, 2-3mm spacing) and the fin height is 15-20mm.

[0050] In this invention, the electric telescopic rod 7 has a telescopic stroke of 50-150mm and a telescopic speed of 20-50mm / s. The connection between the fixing block 8 and the fiber optic temperature sensor 9 is fixed with M3-M4 screws. The minimum distance between the sensor detection end and the power equipment can be adjusted to 5-10mm, and the detection accuracy is ±0.5℃.

[0051] In this invention, the air intake bend 17 is made of PVC material (inner diameter 10-15mm), with a bending radius ≥30mm, and a dust filter (mesh size 80-100 mesh) is installed at the air intake; the exhaust pipe 16 is 200-300mm long, and 4-6 exhaust holes with a diameter of 3-5mm are opened at the end to ensure that the heat dissipation airflow velocity is ≥1m / s.

[0052] Working principle: During use, the fiber optic temperature sensor 9 monitors the temperature of the electrical equipment. The temperature monitored by the fiber optic temperature sensor 9 is transmitted to the PLC controller 11 via the fiber optic cable 10. If the temperature is too high, the PLC controller 11 controls the buzzer 12 to sound an alarm. The fan 5 operates to blow air through the conical shell 6 to cool the electrical equipment. The cooling surface of the semiconductor cooler 14 cools the air inside the rectangular tube 4, allowing the fan 5 to use cold air to cool the electrical equipment, achieving rapid cooling. When the fan 5 is working, some airflow enters the sealed shell 15 through the inlet bend 17 to cool the heat dissipation surface of the semiconductor cooler 14. The exhaust pipe 16 extends to the outside of the electrical equipment to discharge the airflow inside the sealed shell 15, which can cool the heat dissipation surface of the semiconductor cooler 14 and prevent damage caused by high temperature. The servo motor 13 drives the rectangular tube 4 to rotate horizontally through the rotating shaft. The rectangular tube 4 drives the conical shell 6 to rotate horizontally, so that the rectangular tube 4 and the fiber optic temperature sensor 9 move synchronously. The rotation and movement of the fiber optic temperature sensor 9 can adjust the horizontal position of the detection.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fault monitoring and alarm device for power equipment in oil fields, comprising a mounting base (1), wherein two suction cups (2) are mounted on the rear side of the mounting base (1), and a buzzer (12) and a PLC controller (11) are mounted on the front side of the mounting base (1), wherein an optical fiber temperature sensor (9) is connected to the PLC controller (11), characterized in that, A fixing plate (3) is fixedly installed on the front side of the mounting base (1). A rectangular tube (4) is installed on the top of the fixing plate (3). A fan (5) is installed inside the rectangular tube (4). An electric telescopic rod (7) is installed on the top of the rectangular tube (4). A fixing block (8) is installed at the output end of the electric telescopic rod (7). The fiber optic temperature sensor (9) is installed on the fixing block (8).

2. The fault monitoring and alarm device for power equipment in oil fields according to claim 1, characterized in that, An optical fiber cable (10) connects the optical fiber temperature sensor (9) to the PLC controller (11).

3. The fault monitoring and alarm device for power equipment in oil fields according to claim 1, characterized in that, The front end of the rectangular tube (4) is fitted with a conical shell (6), and the front end of the conical shell (6) is provided with an air outlet.

4. The fault monitoring and alarm device for power equipment in oil fields according to claim 1, characterized in that, A servo motor (13) is installed at the bottom of the fixed plate (3). A rotating shaft is installed on the output shaft of the servo motor (13). The rotating shaft is rotatably installed on the fixed plate (3). The top end of the rotating shaft is fixedly installed to the bottom of the rectangular tube (4).

5. The fault monitoring and alarm device for power equipment in oil fields according to claim 1, characterized in that, A semiconductor cooler (14) is embedded in the top of the rectangular tube (4). The cooling surface of the semiconductor cooler (14) is located inside the rectangular tube (4) and behind the fan (5). The heat dissipation surface of the semiconductor cooler (14) is located outside the rectangular tube (4).

6. The fault monitoring and alarm device for power equipment in oil fields according to claim 5, characterized in that, A sealing shell (15) is installed on the outside of the semiconductor cooler (14) at the top of the rectangular tube (4). An air inlet bend (17) is connected to the front side of the sealing shell (15). The air inlet of the air inlet bend (17) is located in front of the fan (5). An exhaust pipe (16) is connected to the rear side of the sealing shell (15). The exhaust pipe (16) extends to the rear side of the mounting base (1).

7. The fault monitoring and alarm device for power equipment in oil fields according to claim 4, characterized in that, The servo motor (13) has a rotation angle range of 0°-180° and a rotation angular velocity of 10°-30° / s. A deep groove ball bearing is provided at the rotation connection between the rotating shaft and the fixed plate (3). The outer ring of the bearing is interference-fitted with the fixed plate (3). The radial runout during rotation is ≤0.1mm.

8. The fault monitoring and alarm device for power equipment in oil fields according to claim 5, characterized in that, The semiconductor cooler (14) has a cooling power of 50-100W, an operating voltage of 12-24V, a distance of 5-10mm between the cooling surface and the inside of the rectangular tube (4), and aluminum heat dissipation fins attached to the heat dissipation surface with a fin height of 15-20mm.

9. The fault monitoring and alarm device for power equipment in oil fields according to claim 1, characterized in that, The electric telescopic rod (7) has a telescopic stroke of 50-150mm and a telescopic speed of 20-50mm / s. The connection between the fixing block (8) and the fiber optic temperature sensor (9) is fixed with M3-M4 screws. The minimum distance between the sensor detection end and the power equipment can be adjusted to 5-10mm, and the detection accuracy is ±0.5℃.

10. The fault monitoring and alarm device for power equipment in oil fields according to claim 6, characterized in that, The intake bend (17) is made of PVC material with a bending radius of ≥30mm and a dust filter is installed at the intake port; the exhaust pipe (16) is 200-300mm long and has 4-6 exhaust holes with a diameter of 3-5mm at the end.

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