CN210319435U

CN210319435U - Oil gas pipeline leak source nondestructive detector

Info

Publication number: CN210319435U
Application number: CN201921374898.3U
Authority: CN
Inventors: 周玉磊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-04-14
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses an oil gas pipeline leak source nondestructive detector, which comprises an instrument mounting rack and a base, wherein a first detection device can avoid the interference influence of other signals except a pipeline leak signal, can obtain a stable, regular and easily identified detection signal, can also detect a detection signal with high identification degree when the pipeline has tiny leakage, a second detection device carries out infrasonic wave detection on the leaked pipeline, can detect leak sources with various sizes, is beneficial to pipeline maintenance and overhaul, the base is suitable for pressure fluid pipelines with different pipe diameters, can ensure that the device is tightly attached to the outer surface of the pressure fluid pipeline, ensures that the detected signal is more accurate, the instrument mounting rack and the base both adopt a component made of an anti-corrosion material, can prevent the detector from being corroded in the detection process, prolongs the service life of the detector, and aims at a piezoelectric detector through an observation window, the detection data of the piezoelectric detector can be observed in real time.

Description

Oil gas pipeline leak source nondestructive detector

Technical Field

The utility model relates to an oil gas pipeline technical field specifically is an oil gas pipeline leak source nondestructive test appearance.

Background

Pipeline safety is the prerequisite of pipeline transportation, and the pipeline breaks easily or is damaged under the condition of inside and outside corruption and pressure, leads to oil gas to leak, and the oil gas of leaking has not only polluted natural environment, has certain injury to the human body, has still wasted the precious energy that can not renew simultaneously.

In the detection of oil gas leakage, the traditional detection instrument can only detect the leakage of a large area, and is easily influenced by the interference of other signals except a pipeline leakage signal, and small leakage points are often overlooked easily to bury potential safety hazards.

Aiming at the problems, in order to obtain stable, regular and easily-recognized detection signals, when a pipeline has micro leakage, the detection signals with high recognition degree can be detected, and judgment errors in detection of leakage in the pipeline and judgment of leakage point positions are reduced, the nondestructive detector for the leakage points of the oil and gas pipeline is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil gas pipeline leak source nondestructive test appearance has improved the sensitivity that the device caught to pipeline leakage signal, has increased the precision of the signal that detects to the problem among the prior art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a nondestructive detector for leakage points of an oil and gas pipeline comprises an instrument mounting frame and a base, wherein the instrument mounting frame is fixedly arranged at the upper end of the base, a first detection device and a second detection device are arranged in an inner cavity of the instrument mounting frame, and the second detection device is placed on one side of the first detection device; the first detection device comprises a steel column, a piezoelectric ceramic piece, a pressure plate, a clamping seat, a weak signal amplifier, a sensor and a sealing partition plate, wherein the steel column is fixedly arranged at the upper end of the pressure plate; the second detection device comprises a conductive electrode, an infrasonic wave piezoelectric sensor, a buffer spring, an observation window, a piezoelectric detector and a wiring hole, wherein the conductive electrode is arranged at the lower end of the inner cavity of the instrument mounting rack; the base includes first adapter sleeve, second adapter sleeve, first bolt, fixing base and second bolt, and the one end of first adapter sleeve and second adapter sleeve is articulated, and the other end of first adapter sleeve and second adapter sleeve passes through first bolt fixed connection, and the fixing base passes through the second bolt respectively with first adapter sleeve and second adapter sleeve fixed connection.

Preferably, the weak signal amplifier is connected with the piezoelectric ceramic piece through a signal wire.

Preferably, the observation window is arranged on the side wall of the upper end of the instrument mounting frame, and the observation window is aligned with the piezoelectric detector.

Preferably, the instrument mounting frame and the base are both made of a corrosion-resistant material.

Preferably, one end of the buffer spring is connected with the infrasonic wave piezoelectric sensor, and the other end of the buffer spring is connected with the bottom of the sealing partition plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this oil gas pipeline leak source nondestructive test appearance, the interference influence of other signals outside the pipeline leakage signal can be avoided to first detection device, can acquire stably, regularly, the detection signal of easy discernment, when the pipeline has small revealing, also can detect the high detection signal of degree of recognition, second detection device carries out infrasonic wave to the pipeline that leaks and detects, can detect the leak source of various sizes, help pipeline maintenance and maintenance, the base is applicable to the pressure fluid pipeline of different pipe diameters, need not to carry out operations such as trompil on the pipeline, can not cause the damage to the pipeline, and can guarantee that device and pressure fluid pipeline surface closely laminate, make the signal that detects more accurate, reduce the judgement error when judging leak testing and leak source position in the pipeline.

2. This oil gas pipeline leak source nondestructive test appearance, instrument mounting bracket and base all adopt the component that an anticorrosion material made, can prevent that the detector from receiving the corruption at the in-process that detects, have increased the life of detector.

3. According to the oil and gas pipeline leakage point nondestructive detector, the observation window is aligned to the piezoelectric detector, and the detection data of the piezoelectric detector can be observed in real time.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a structural diagram of a first detecting device of the present invention;

fig. 3 is a structural diagram of a second detecting device of the present invention.

In the figure: 1. an instrument mounting bracket; 12. a first detection device; 121. a steel column; 122. piezoelectric ceramic plates; 123. a pressure plate; 124. a card holder; 125. a weak signal amplifier; 126. a sensor; 127. sealing the partition plate; 13. a second detection device; 131. a conductive electrode; 132. an infrasonic piezoelectric sensor; 133. a buffer spring; 134. an observation window; 135. a piezoelectric detector; 136. a wire connecting hole; 2. a base; 21. a first fastening sleeve; 22. a second fastening sleeve; 23. a first bolt; 24. a fixed seat; 25. and a second bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an oil and gas pipeline leak point nondestructive detector includes an instrument mounting bracket 1 and a base 2, the instrument mounting bracket 1 is fixedly mounted at the upper end of the base 2, both the instrument mounting bracket 1 and the base 2 are made of a corrosion-resistant material, a first detection device 12 and a second detection device 13 are disposed in an inner cavity of the instrument mounting bracket 1, the second detection device 13 is disposed at one side of the first detection device 12, the first detection device 12 is composed of a steel column 121, a piezoelectric ceramic plate 122, a pressure plate 123, a clamping bracket 124, a weak signal amplifier 125, a sensor 126 and a sealing partition 127, the steel column 121 is fixedly mounted at the upper end of the pressure plate 123, the piezoelectric ceramic plate 122 is disposed in the inner cavity of the steel column 121, the clamping bracket 124 is fixedly mounted on two side walls of the inner cavity of the instrument mounting bracket 1, the weak signal amplifier 125 is connected with the piezoelectric ceramic plate 122 through a signal line, the sealing diaphragm 127 is arranged at the upper end of the weak signal amplifier 125, the sensor 126 is fixedly arranged at the bottom of the sealing diaphragm 127, the second detection device 13 comprises a conductive electrode 131, an infrasonic wave piezoelectric sensor 132, a buffer spring 133, an observation window 134, a piezoelectric detector 135 and a wire connecting hole 136, the conductive electrode 131 is arranged at the lower end of the inner cavity of the instrument mounting rack 1, the infrasonic wave piezoelectric sensor 132 is fixedly arranged at the upper end of the conductive electrode 131, one end of the buffer spring 133 is connected with the infrasonic wave piezoelectric sensor 132, the other end of the buffer spring 133 is connected with the bottom of the sealing diaphragm 127, the observation window 134 is arranged on the side wall of the upper end of the instrument mounting rack 1, the observation window 134 is aligned with the piezoelectric detector 135, the piezoelectric detector 135 is arranged at the upper end of the sealing diaphragm 127, the wire connecting hole 136 is arranged at the top of the instrument mounting rack 1, the base 2 comprises, Fixing base 24 and second bolt 25, the one end of first adapter sleeve 21 and second adapter sleeve 22 is articulated, and the other end of first adapter sleeve 21 and second adapter sleeve 22 passes through first bolt 23 fixed connection, and fixing base 24 passes through second bolt 25 respectively with first adapter sleeve 21 and second adapter sleeve 22 fixed connection.

In summary, the following steps: the nondestructive detector for the leakage point of the oil and gas pipeline comprises an instrument mounting rack 1 and a base 2, wherein the instrument mounting rack 1 is fixedly arranged at the upper end of the base 2, an inner cavity of the instrument mounting rack 1 is provided with a first detection device 12 and a second detection device 13, the second detection device 13 is arranged at one side of the first detection device 12, the first detection device 12 can avoid the interference influence of other signals except a pipeline leakage signal, stable, regular and easily-identified detection signals can be obtained, when the pipeline has small leakage, a detection signal with high identification degree can be detected, the second detection device 13 carries out infrasonic wave detection on the leaked pipeline, leakage points with various sizes can be detected, the pipeline maintenance and overhaul are facilitated, the base 2 is suitable for pressure fluid pipelines with different pipe diameters, the operations such as hole opening on the pipeline are not needed, the pipeline cannot be damaged, and the device can be ensured to be tightly attached to the outer surface of the pressure fluid pipeline, make the signal that detects more accurate, reduce the judgement error when judging leakage detection and leakage point position in the pipeline, instrument mounting bracket 1 and base 2 all adopt the component that an anticorrosion material made, can prevent that the detector from receiving the corruption at the in-process that detects, have increased the life of detector, and observation window 134 aims at piezoelectric detector 135, can real-time observation piezoelectric detector 135's detection data.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an oil gas pipeline leak source nondestructive test appearance, includes instrument mounting bracket and base, instrument mounting bracket fixed mounting is in the upper end of base, its characterized in that: the inner cavity of the instrument mounting frame is provided with a first detection device and a second detection device, and the second detection device is placed on one side of the first detection device; the first detection device comprises a steel column, a piezoelectric ceramic piece, a pressure plate, a clamping seat, a weak signal amplifier, a sensor and a sealing partition plate, wherein the steel column is fixedly arranged at the upper end of the pressure plate; the second detection device comprises a conductive electrode, an infrasonic wave piezoelectric sensor, a buffer spring, an observation window, a piezoelectric detector and a wiring hole, wherein the conductive electrode is arranged at the lower end of the inner cavity of the instrument mounting rack; the base includes first adapter sleeve, second adapter sleeve, first bolt, fixing base and second bolt, and the one end of first adapter sleeve and second adapter sleeve is articulated, and the other end of first adapter sleeve and second adapter sleeve passes through first bolt fixed connection, and the fixing base passes through the second bolt respectively with first adapter sleeve and second adapter sleeve fixed connection.

2. The nondestructive detector for the leak point of the oil and gas pipeline according to claim 1, characterized in that: the weak signal amplifier is connected with the piezoelectric ceramic piece through a signal wire.

3. The nondestructive detector for the leak point of the oil and gas pipeline according to claim 1, characterized in that: the observation window is arranged on the side wall of the upper end of the instrument mounting frame, and the observation window is aligned to the piezoelectric detector.

4. The nondestructive detector for the leak point of the oil and gas pipeline according to claim 1, characterized in that: the instrument mounting rack and the base are both members made of an anti-corrosion material.

5. The nondestructive detector for the leak point of the oil and gas pipeline according to claim 1, characterized in that: one end of the buffer spring is connected with the infrasonic wave piezoelectric sensor, and the other end of the buffer spring is connected with the bottom of the sealing partition plate.