阅读说明：本技术 一种微小管路探头一体化的涡流内检测结构 (Micro pipeline probe integrated vortex internal detection structure ) 是由 杨理践 王国庆 毛柳伟 杜度 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种微小管路探头一体化的涡流内检测结构,包括环状结构的探头安装部分,环状部分有固定架连接孔,贯穿固定架连接孔设置有固定架,固定架在位于环状结构的两端分别套设有前端支撑组件和后端支撑皮碗；环状结构由若干个探头固定瓣围成,环状结构、前端支撑组件以及后端支撑皮碗均为柔性材料,每个探头固定瓣在设置有涡流传感器,涡流传感器对应探头固定瓣包覆有耐磨保护膜,环状部分的一端在沿其轴向形成有过盈预留面。本发明解决了常规涡流检测探头都为分体式独立结构,尺寸较大,占用空间大,且安装麻烦的问题,以及涡流检测结构微型化的问题,提高了涡流检测的效率和精确度,实现了微小管路的涡流内检测。(The invention discloses a micro pipeline probe integrated eddy current internal detection structure, which comprises a probe mounting part with an annular structure, wherein the annular part is provided with a fixing frame connecting hole, a fixing frame is arranged by penetrating through the fixing frame connecting hole, and a front end supporting assembly and a rear end supporting leather cup are respectively sleeved at two ends of the fixing frame positioned on the annular structure; the annular structure is enclosed by the fixed lamella of a plurality of probe, and annular structure, front end supporting component and rear end support leather cup are flexible material, and every fixed lamella of probe is being provided with eddy current sensor, and eddy current sensor corresponds the fixed lamella cladding of probe and has wear-resisting protection film, and the one end of annular part is being formed with the interference reservation face along its axial. The invention solves the problems that the conventional eddy current detection probe is of a split type independent structure, has larger size, large occupied space and troublesome installation and the eddy current detection structure is miniaturized, improves the efficiency and the accuracy of eddy current detection and realizes the eddy current internal detection of a tiny pipeline.)

1. The integrated eddy current internal detection structure of the micro pipeline probe is characterized by comprising a probe mounting part, wherein the probe mounting part is of an annular structure, a fixing frame connecting hole (11) is formed in the center of the annular part, a fixing frame (6) penetrates through the fixing frame connecting hole (11), and a front end supporting assembly and a rear end supporting leather cup (8) are respectively sleeved at two ends of the fixing frame (6) located at the annular structure; the annular structure is enclosed by a plurality of probe fixing flaps (10), the annular structure, the front end supporting assembly and the rear end supporting leather cup (8) are made of flexible materials, each probe fixing flap (10) is provided with an eddy current sensor (12) at a position corresponding to a pipeline to be detected, the eddy current sensors (12) are coated with wear-resistant protective films corresponding to the probe fixing flaps (10), and an interference reserved surface is formed at one end, close to the front end supporting assembly, of the annular part along the axial direction of the annular part.

2. The micro pipeline probe integrated vortex internal detection structure according to claim 1, wherein the front end supporting assembly comprises a front end supporting leather cup (3) sleeved on a fixing frame (6), and a spacer (4) is arranged between the front end supporting leather cup (3) and the probe mounting part.

3. The micro pipeline probe integrated vortex flow internal detection structure as claimed in claim 2, wherein a plurality of water passing grooves (14) are formed in the circumferential direction of the front end supporting cup (3) and the rear end supporting cup (8) at intervals.

4. The micro pipeline probe integrated eddy current internal testing structure as claimed in claim 1, wherein the radial dimension of the ring structure is larger than the radial dimensions of the front end supporting component and the rear end supporting leather cup (8), so as to form an interference fit with the pipeline to be tested under the condition that the ring structure moves axially along the pipeline to be tested.

5. The micro pipeline probe integrated eddy current internal detection structure according to claim 1, further comprising a fixed pressing plate assembly, wherein the fixed pressing plate assembly comprises a front end fixed pressing plate (2) and a rear end pressing plate (9) which are respectively arranged at two ends of the fixed frame (6), the rear end pressing plate (9) is located at one end, away from the annular structure, of the rear end supporting leather cup (8), and the front end fixed pressing plate (2) and the rear end pressing plate (9) are both provided with a plurality of fastening bolts (1) corresponding to the fixed frame (6).

6. The micro pipeline probe integrated eddy current internal detection structure as claimed in claim 1, wherein a plurality of fixing holes (7) are formed on the fixing frame (6).

7. The micro pipeline probe integrated eddy current internal detection structure as claimed in claim 1, wherein the interference reserved surface is an interference inclined surface (13) extending from each probe fixing flap (10) along one end of the annular part, so that after the annular part enters the pipeline to be detected, each probe fixing flap (10) is tightly attached to each other, and each eddy current sensor (12) is attached to the pipe wall of the pipeline to be detected through a protection film.

8. The micro pipeline probe integrated eddy current internal test structure as claimed in claim 1, wherein the wear-resistant protective film is made of polyether ketone material, and the wear-resistant protective film is fixed on the annular structure through a protective film fastening screw (5).

9. The micro line probe integrated in eddy current internal testing structure according to any one of claims 1-8, wherein the flexible material is a polyurethane material.

Technical Field

The invention belongs to the technical field of nondestructive testing of pipeline corrosion, and particularly relates to a micro pipeline probe integrated eddy current internal testing structure.

Background

The pipeline is widely applied to various important industrial fields such as ships, petrochemicals, nuclear energy, electric power and the like as an economic, efficient and safe material conveying means. Along with the increase of service time, the pipeline can be corroded by the action of internal and external media, and pipeline leakage can be caused in serious cases, even major safety accidents occur, and huge hidden dangers are brought to the safe operation of equipment.

The pipeline eddy current internal detection technology can realize 360-degree full-coverage detection of pipeline corrosion by carrying an eddy current probe to walk in a pipeline through a detection device, and has the advantages of large detection range, high efficiency, high sensitivity and the like. The conventional eddy current detection probe is of a split type independent structure, is large in size, large in occupied space and troublesome to install. Meanwhile, in order to realize the full coverage of the pipeline by the probe for 360 degrees, the distance between the probes needs to be calculated in a complicated way. Therefore, for a small pipeline with a small inner diameter, the conventional probe cannot meet the design requirement due to the narrow inner space, and the whole structure of the equipment needs to be specially designed. In order to realize the eddy current internal detection of the micro pipeline, a miniature and convenient eddy current internal detection equipment structure is required to be found.

Disclosure of Invention

The invention aims to provide a micro pipeline probe integrated eddy current internal detection structure, which solves the problem that the conventional eddy current probe and detection structure cannot meet the internal detection requirement due to narrow internal space of the existing micro pipeline with smaller inner diameter.

The technical scheme adopted by the invention is that,

a micro pipeline probe integrated eddy current internal detection structure comprises a probe mounting part, wherein the probe mounting part is of an annular structure, a fixing frame connecting hole is formed in the center of the annular part, a fixing frame penetrates through the fixing frame connecting hole, and a front end supporting assembly and a rear end supporting leather cup are respectively sleeved at two ends of the fixing frame, which are located on the annular structure; the annular structure is enclosed by the fixed lamella of a plurality of probe, and annular structure, front end supporting component and rear end support leather cup are flexible material, and every fixed lamella of probe is provided with eddy current sensor in the position that the pipeline is detected to the correspondence, and eddy current sensor corresponds the fixed lamella cladding of probe and has wear-resisting protection film, and the annular part is being formed with the interference reservation face along its axial in the one end that is close to front end supporting component.

The present invention is also characterized in that,

the front end supporting assembly comprises a front end supporting leather cup sleeved on the fixing frame, and a spacer is arranged between the front end supporting leather cup and the probe mounting part.

A plurality of water passing grooves are formed in the circumferential direction of the front end supporting leather cup and the rear end supporting leather cup at intervals.

The radial dimension of the annular structure is larger than that of the front end supporting assembly and the rear end supporting leather cup, so that the annular structure and the pipeline to be detected form interference fit under the condition that the annular structure moves axially along the pipeline to be detected.

Still include the fixed pressing plate subassembly, the fixed pressing plate subassembly is including setting up respectively in the front end fixed pressing plate and the rear end clamp plate at mount both ends, and the rear end clamp plate is located the rear end and supports the one end that the leather cup kept away from annular structure, and front end fixed pressing plate and rear end clamp plate correspond the mount and all dispose a plurality of fastening bolt.

The fixing frame is provided with a plurality of fixing holes.

The interference reserved surface is an interference inclined surface extending along one end of the annular part of each probe fixing valve, so that after the annular part enters the pipeline to be detected, each probe fixing valve is tightly attached to each other, and each eddy current sensor is attached to the pipe wall of the pipeline to be detected through the protective film.

The wear-resistant protective film is made of polyether ketone material and is fixed on the annular structure through protective film fastening screws.

The flexible material is a polyurethane material.

The invention has the beneficial effects that: the micro pipeline probe integrated vortex internal detection structure has the advantages that on the basis of a micro and convenient structure, the pipeline vortex internal detection precision is improved, the vortex internal detection of micro pipeline corrosion is realized, and the micro pipeline probe integrated vortex internal detection structure has good practicability.

Drawings

FIG. 1 is a schematic structural diagram of a micro pipeline probe integrated eddy current internal detection structure according to the present invention;

FIG. 2 is a schematic structural diagram of a probe ring in the micro pipeline probe integrated eddy current internal detection structure according to the present invention.

In the figure, 1, a fastening bolt, 2, a front end fixing pressure plate, 3, a front end supporting leather cup, 4, a spacer, 5, a protective film fastening screw, 6, a fixing frame, 7, a fixing hole, 8, a rear end supporting leather cup, 9, a rear end pressure plate, 10, a probe fixing flap, 11, a fixing frame connecting hole, 12, an eddy current sensor, 13, an interference inclined plane and 14, a water passing groove are arranged.

Detailed Description

The following describes a micro pipeline probe integrated eddy current internal detection structure in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 and 2, the micro pipeline probe integrated eddy current internal detection structure comprises a probe mounting part, wherein the probe mounting part is of an annular structure, a fixing frame connecting hole 11 is formed in the center of the annular part, a fixing frame 6 is arranged through the fixing frame connecting hole 11, and a front end supporting assembly and a rear end supporting leather cup 8 are respectively sleeved at two ends of the fixing frame 6, which are located at the annular structure; the annular structure is enclosed by a plurality of fixed lamella 10 of probe, and annular structure, front end supporting component and rear end support leather cup 8 are flexible material, and every fixed lamella 10 of probe is provided with eddy current sensor 12 in the position that corresponds to wait to detect the pipeline, and eddy current sensor 12 corresponds fixed lamella 10 cladding of probe and has wear-resisting protection film, and the annular part is being formed with the interference reservation face along its axial in the one end that is close to front end supporting component.

Further, the front end supporting assembly comprises a front end supporting leather cup 3 sleeved on the fixing frame 6, and a spacer 4 is arranged between the front end supporting leather cup 3 and the probe mounting part.

Further, a plurality of water passing grooves 14 are formed in the circumferential direction of the front end supporting cup 3 and the rear end supporting cup 8 at intervals.

Further, the radial dimension of the annular structure is larger than the radial dimensions of the front end support assembly and the rear end support cup 8, so that the annular structure forms an interference fit with the pipeline to be detected under the condition that the annular structure moves axially along the pipeline to be detected.

Further, still include the fixed pressing plate subassembly, the fixed pressing plate subassembly is including setting up in the front end fixed pressing plate 2 and the rear end clamp plate 9 at 6 both ends of mount respectively, and rear end clamp plate 9 is located the one end that the annular structure was kept away from to rear end support leather cup 8, and front end fixed pressing plate 2 and rear end clamp plate 9 correspond mount 6 and all dispose a plurality of fastening bolt 1.

Furthermore, the fixing frame 6 is provided with a plurality of fixing holes 7.

Further, the interference reserved surface is an interference inclined surface 13 extending from each probe fixing flap 10 along one end of the annular portion, so that after the annular portion enters the pipeline to be detected, each probe fixing flap 10 is tightly attached to each other, and each eddy current sensor 12 is attached to the wall of the pipeline to be detected through a protective film.

Further, the wear-resistant protective film is made of polyether ketone materials and is fixed to the annular structure through protective film fastening screws 5.

Further, the flexible material is a polyurethane material.

The invention relates to a front end supporting leather cup 3 of a micro pipeline probe integrated vortex internal detection structure, which comprises the following components in percentage by weight: the supporting resistance is reduced, the deformation capacity is increased, and the overall motion stability is improved; the spacer 4: the front end is isolated from the supporting leather cup 3 and the probe mounting part, so that mutual extrusion between the two parts is prevented. Simultaneously, the function of fixing the probe mounting part is achieved; the probe fixing valve 10 is provided with a wear-resistant protective film made of polyether ketone material at the part attached to the pipeline to be detected, so that the detection precision can be ensured, the eddy current sensor 12 is protected from being damaged, and the service life of the mechanism is prolonged.

Protective film fastening screw 5: fixing the outer layer structure of the probe mounting part; a fixing frame 6: and the supporting and fixing probe mounting part is provided with four fixing holes 7 for mounting the signal acquisition board. The interior is hollow in order to reduce the overall weight of the device. The rear end supporting leather cup 8 and the front end supporting leather cup 3 have the same structure and function; the probe fixing valve 10 realizes the detection of the combined integrated micro pipeline through a plurality of combinations and interference design, saves the detection space and simplifies the detection structure.

The invention relates to a working process of a micro pipeline probe integrated vortex internal detection structure, which comprises the following steps: the structure is assembled, the structure is placed into a pipeline to be detected, the probe mounting part is in interference fit with the inner wall of the pipeline to be detected, then the structure is pushed to move in the pipeline to be detected through external equipment, the vortex sensor 12 is matched to carry out vortex internal detection on the pipeline to be detected, after the detection is finished, the structure is taken out and collected after being cleaned, and therefore the operation of the vortex internal detection structure integrating the tiny pipeline probe is finished.

The invention relates to an integrated eddy current internal detection structure of a tiny pipeline probe, which solves the problems that the conventional eddy current detection probe is of a split type independent structure, is large in size, large in occupied space and inconvenient to install and the eddy current detection structure is miniaturized through reasonable design, improves the efficiency and the accuracy of eddy current detection and realizes the eddy current internal detection of tiny pipelines.