CN-224212771-U - Cathode protection monitoring device for oil gas pipeline

CN224212771UCN 224212771 UCN224212771 UCN 224212771UCN-224212771-U

Abstract

The utility model relates to the technical field of oil and gas pipelines, and discloses a cathode protection monitoring device for an oil and gas pipeline, which comprises an oil and gas pipe, the top end of the outer wall of the oil gas pipe is fixedly connected with a monitoring pipe, an anode block is arranged in the monitoring pipe, and the anode block is connected with the monitoring pipe through a mounting assembly. This cathodic protection monitoring devices for oil gas pipeline, through the cooperation between oil gas pipe, the monitoring pipe, positive pole piece and the installation component, the sensor can monitor the upward movement distance of circle piece, when this movement distance reached the threshold value that the sensor was preset, the sensor can send the signal to the inside control module of box body, afterwards, control module sends the start-up instruction to the alarm, the alarm operation and sent beep, remind the staff to change the positive pole piece, in whole operation in-process, even the intraductal medium pressure of oil gas changes, still can accurate monitoring positive pole piece's corrosion degree, thereby the practicality of device has been strengthened.

Inventors

WANG XIAOYU
SUN XILIN
SUN YONGZHE
ZHANG CHI
CUI PENGFEI
CUI XIAOWEN
LI GUANGAO
LIU GE
WANG CHUNYUE
ZHOU JIANHUA
CHEN YANG

Assignees

沈阳恒天伟业管道技术有限公司

Dates

Publication Date: 20260508
Application Date: 20250522

Claims (5)

1. The cathode protection monitoring device for the oil and gas pipeline comprises an oil and gas pipe (1), and is characterized in that a monitoring pipe (2) is fixedly connected to the top end of the outer wall of the oil and gas pipe (1), an anode block (3) is arranged in the monitoring pipe (2), the anode block (3) is connected with the monitoring pipe (2) through a mounting assembly, the mounting assembly comprises a vertical rod (4), the vertical rod (4) is positioned on the inner wall of the anode block (3), a cross rod (5) is fixedly connected to the bottom end of the vertical rod (4), a supporting rod (6) is fixedly connected to both ends of the outer wall of the cross rod (5), the top end of the supporting rod (6) is abutted against the anode block (3), a sleeve (7) is sleeved on the upper side of the outer wall of the vertical rod (4), a pasting plate (8) is fixedly sleeved on the outer wall of the sleeve (7), first protruding rods (9) are inserted into the two sides of the upper surface of the pasting plate (8), the first protruding rods (9) penetrate through the pasting plate (8) to be fixedly connected with the anode block (3), a vertical plate (12) is fixedly connected to the upper surface of a vertical plate (12), a vertical plate (12) is fixedly connected to the upper surface of the vertical plate (12), the utility model discloses a sensor, including sensor (13), button (14) are equipped with below of sensor (13), button (14) are fixed continuous with the top of montant (4), the below of button (14) is equipped with gasket (15), the fixed continuous outer wall of gasket (15) and montant (4), the lower surface rigid coupling of gasket (15) has pressure spring (16), the bottom of pressure spring (16) is fixed continuous with the contact surface of flitch (8), the fixed baffle (17) that cup joints of outer wall of upright section of thick bamboo (11), the lower surface rigid coupling of baffle (17) has sealing washer (18), the lower surface of sealing washer (18) supports tightly has ring (19), the outer wall of ring (19) is fixed continuous with the inner wall of monitoring pipe (2), the upper surface rigid coupling of ring (19) has a plurality of second protruding poles (20), the outer wall threaded connection of second protruding pole (20) has second nut (21), second nut (21) and monitoring pipe (22) are closely run through sealing washer (18) and baffle (17), the upper surface of apron (22) is connected with the top of apron (22) through the monitoring pipe (22), the inside bottom rigid coupling of casing (24) has box body (25), the inside both sides of casing (24) all rigid coupling has alarm (26), the apron (22) are run through to a part of alarm (26).
2. The cathodic protection monitoring device for an oil and gas pipeline according to claim 1, wherein the two sides of the upper surface of the cover plate (22) are provided with protection components, the protection components comprise two protection cylinders (27), the two protection cylinders (27) are fixedly connected to the two sides of the upper surface of the cover plate (22) respectively, the top ends of the protection cylinders (27) are fixedly connected with conical plates (28), the outer wall of the protection cylinders (27) is uniformly provided with a plurality of inclined holes (29), and the inner wall of the protection cylinders (27) is fixedly connected with a protection film (30).
3. The cathodic protection monitoring device for oil and gas pipelines according to claim 1, wherein pull rings (31) are fixedly connected to two sides of the upper surface of the baffle plate (17).
4. The cathodic protection monitoring device for an oil and gas pipeline according to claim 1, wherein an auxiliary component is arranged on the inner wall of the monitoring pipe (2), the auxiliary component comprises a cylinder (33), the cylinder (33) is positioned in the monitoring pipe (2), a soft cylinder (34) is fixedly connected to the outer wall of the cylinder (33), the outer wall of the soft cylinder (34) is abutted against the inner wall of the monitoring pipe (2), the cylinder (33) is connected with the monitoring pipe (2) through a second bolt (35), a soft ring (32) is fixedly connected to the inner wall of the cylinder (33), and the soft ring (32) is abutted against the outer wall of the anode block (3).
5. The cathodic protection monitoring device for oil and gas pipelines according to claim 1, wherein the two sides of the upper surface of the gasket (15) are respectively inserted with a vertical rod (36), and the vertical rods (36) penetrate through the gasket (15) and are fixedly connected with the flitch (8).

Description

Cathode protection monitoring device for oil gas pipeline Technical Field The utility model relates to the technical field of oil and gas pipelines, in particular to a cathode protection monitoring device for an oil and gas pipeline. Background The oil and gas pipeline is used for conveying crude oil, finished oil (such as gasoline, diesel oil), natural gas and other mediums from production places (oil fields, gas fields) or storage places (oil refineries, gas storages) to consumption places (cities, industrial areas and outlet terminals) in a buried or overhead mode, the outer wall of the oil and gas pipeline is generally preserved by brushing anti-corrosion paint, the individual places are preserved by adopting a mode of welding sacrificial anodes, and the inner wall is generally not preserved. However, it is not uncommon for the transport medium to contain water, sulfur or other impurities, which can cause corrosion of the pipe through the inside-out perforations during long-term operation. In order to overcome the above drawbacks, the patent of the utility model with the public number of CN 221217928U in the public technology is to provide a cathodic protection monitoring device for oil and gas pipelines. Including oil gas pipe and monitor tube, fixedly connected with link in the monitor tube, be provided with in the monitor tube and prop up the box, although under the trunk line normal pressure state, the accessible built-in sensor carries out real-time supervision to the high position of sacrificial anode piece, but medium pressure is periodic fluctuation (like the delivery volume changes or the valve is opened and close) in the trunk line in the actual operation, and this kind of pressure changes can lead to the anode piece to take place vertical displacement in the monitor sleeve pipe, and then can't carry out accurate monitoring to the corrosion degree of anode piece when medium pressure changes in the trunk line, and the practicality is comparatively general. Disclosure of utility model The utility model aims to provide a cathode protection monitoring device for an oil gas pipeline, which can accurately monitor the corrosion degree of an anode block when the pressure of a medium in a main pipeline changes, and the practicability is enhanced so as to solve the problems in the prior art. The utility model provides a cathode protection monitoring device for an oil gas pipeline, which comprises an oil gas pipe, wherein the top end of the outer wall of the oil gas pipe is fixedly connected with a monitoring pipe, an anode block is arranged in the monitoring pipe, the anode block is connected with the monitoring pipe through a mounting component, the mounting component comprises a vertical rod, the vertical rod is positioned on the inner wall of the anode block, the bottom end of the vertical rod is fixedly connected with a transverse rod, the two ends of the outer wall of the transverse rod are fixedly connected with a supporting rod, the top end of the supporting rod is tightly abutted against the anode block, a sleeve is sleeved above the outer wall of the vertical rod, a flitch is fixedly sleeved on the outer wall of the sleeve, the two sides of the upper surface of the flitch are respectively inserted with a first convex rod, the first convex rod penetrates through the flitch and is fixedly connected with the anode block, the upper surface of the flitch is fixedly connected with a first nut, the lower surface of the upright plate is connected with a circular plate, the lower surface of the sensor is fixedly arranged on the lower surface of the circular plate, the lower surface of the circular plate is fixedly connected with a circular plate, the top end of the circular plate is fixedly connected with the upper surface of the circular plate is fixedly connected with a second round plate, the upper surface of the sealing ring is fixedly connected with a second round plate, the sealing ring is fixedly connected with the upper surface of the sealing ring is fixedly connected with the sealing ring, the sealing ring is fixedly connected with the sealing ring, the cover plate is connected with the monitoring pipe through a first bolt, a shell is fixedly connected to the lower surface of the cover plate, a box body is fixedly connected to the bottom end of the inside of the shell, alarms are fixedly connected to two sides of the inside of the shell, and a part of the alarms penetrates through the cover plate. Preferably, the two sides of the upper surface of the cover plate are provided with protection components, the protection components comprise two protection cylinders, the two protection cylinders are fixedly connected to the two sides of the upper surface of the cover plate respectively, the top ends of the protection cylinders are fixedly connected with conical plates, the outer walls of the protection cylinders are uniformly provided with a plurality of inclined holes, and the inner walls of the pr