CN213541644U

CN213541644U - On-line leak detection corrugated pipe compensator applied to high-pressure medium occasion

Info

Publication number: CN213541644U
Application number: CN202022611064.9U
Authority: CN
Inventors: 孙瑞晨; 刘化斌; 赵璇
Original assignee: Aerosun Tola Expansion Joint Co ltd
Current assignee: Aerosun Tola Expansion Joint Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-06-25
Anticipated expiration: 2030-11-12

Abstract

The utility model relates to an intelligence industrial pipeline technical field provides an online leak hunting bellows compensator for high pressure medium occasion very much, including the bellows, the takeover of being connected with the bellows both ends respectively, isolation structure, at least one sound sensor, data processing equipment and terminal display device, isolation structure one end fixed connection is on the takeover of bellows one side, other end fixed connection is on the takeover of bellows opposite side, the bellows, the takeover of both sides forms the isolation chamber with isolation structure together, at least one sound sensor sets up in isolating the chamber, sound sensor is connected with data processing equipment, data processing equipment is connected with terminal display device. This novel corrugated pipe compensator leaks under the long-term operating condition of real-time supervision, provides sufficient decision-making and maintenance time for the pipe network administrator.

Description

On-line leak detection corrugated pipe compensator applied to high-pressure medium occasion

Technical Field

The utility model relates to an intelligence industrial pipeline technical field provides an online leak hunting bellow compensator for high-pressure medium occasion very much.

Background

A bellows compensator, as a flexible element common in pipe design, mainly serves to compensate displacement of the pipe due to temperature changes. If a corrugated pipe compensator is used for eliminating the influence of thermal stress along with the sudden change of reaction temperature in some high-pressure reaction vessels, and the pressure value in the vessels is high (generally more than 5MPa), once the corrugated pipe compensator has cracks and leaks, a medium in the vessels is sprayed out from the cracks at a high speed under the action of pressure to damage the external environment, the cracks of the corrugated pipe rapidly expand and have the destructive tendency of cracking, thereby causing serious influence on the system operation and the safety of personnel. Therefore, the leakage of the corrugated pipe compensator on a high-pressure medium occasion needs to be monitored on line in real time, the corrugated pipe compensator at the leakage position is found in time, and the use safety performance of the corrugated pipe compensator is improved.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a be applied to online leak hunting corrugated expansion joint ware of high-pressure medium occasion, whether leak appears in corrugated expansion joint ware under the long-term operating condition from real-time supervision, provide sufficient decision-making and maintenance time for the pipe network administrator.

The utility model discloses a realize like this, the utility model provides a be applied to online leak hunting bellows compensator of high pressure medium occasion, including the bellows, the takeover of being connected with the bellows both ends respectively, isolation structure, at least one sound sensor, data processing equipment and terminal display device, isolation structure one end fixed connection is on the takeover of bellows one side, other end fixed connection is on the takeover of bellows opposite side, the bellows, the takeover of both sides forms the isolation chamber with isolation structure together, at least one sound sensor sets up in isolating the chamber, sound sensor is connected with data processing equipment, data processing equipment is connected with terminal display device.

Preferably, the isolation structure comprises a high ring plate, a low ring plate and an outer sheath, the high ring plate is fixed on the outer side of the connecting pipe on one side, the low ring plate is fixed on the outer side of the connecting pipe on the other side, one end of the outer sheath is fixedly connected with the high ring plate, and the other end of the outer sheath is lapped with the outer side of the low ring plate.

Further preferably, a sound insulating layer is provided on the outer side of the isolation structure.

Further preferably, a reinforcing ring is provided between adjacent corrugations of the corrugated tube.

Compared with the prior art, the utility model has the advantages of:

the problem of under the high pressure medium operating mode that contains many corrugated expansion joint wares, equipment does not shut down, leaks quick location and the warning of corrugated expansion joint ware is solved to managers in time takes measures. The remote online monitoring is realized, the frequent inspection of the corrugated pipe compensator by operation and maintenance personnel is not needed, and the labor cost is reduced.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments:

fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples 1,

Referring to fig. 1, the utility model provides a be applied to online leak hunting bellows compensator of high pressure medium occasion, including bellows 1, take over 3 with bellows 1 both ends are connected respectively, isolating structure, a sound sensor 7, data processing equipment 9 and terminal display device 10, isolating structure one end fixed connection is on the takeover 3 of bellows 1 one side, other end fixed connection is on the takeover 3 of bellows 1 opposite side, bellows 1, the takeover 3 of both sides forms the isolation chamber with isolating structure together, a sound sensor 7 sets up in isolating the chamber, sound sensor 7 is connected with data processing equipment 9, data processing equipment 9 is connected with terminal display device 10.

Sound sensor 7 is wireless intelligent sound sensor, realizes the wireless transmission of sound data, reduces complicated wiring setting, and equipment fixing is convenient, increases the reliability of sensor monitoring.

The method for detecting the leakage by using the online leakage detection corrugated pipe compensator applied to the high-pressure medium occasion comprises the following steps of:

1) detecting the air tightness of the corrugated pipe compensator;

2) calibrating and debugging the sound sensor 7, the data processing equipment 9 and the terminal display equipment 10, and inputting a set sound pressure threshold value [ P ] and a set time threshold value [ T ] of the sound insulation cavity into a program of the data processing equipment 9, wherein the two threshold values need to be determined through tests, and the [ T ] can be set to be about 20 s;

3) starting a sound sensor 7, a data processing device 9 and a terminal display device 10, wherein the sound sensor 7 with a probe positioned in a sound insulation cavity monitors the maximum sound pressure value P in the sound insulation cavity of the corrugated pipe compensator in real time, a sound signal is sent to the data processing device 9, the data processing device 9 compares the sound pressure value and the duration time value of the sound with the threshold value set in the step 2), and sends the final result to the terminal display device 10, and the sound pressure value P > [ P ] and the duration time T > [ T ] are used as the alarm basis of the terminal display device;

4) when the corrugated pipe compensator leaks, the medium in the pipeline quickly enters the sound insulation cavity under the action of pressure to form continuous harsh sound. When the instantaneous steep increase of the air sound pressure in the sound insulation cavity is monitored, the air sound pressure exceeds a set sound pressure threshold value, and the duration time exceeds a time threshold value, the terminal display device 10 sends out a leakage alarm of the corrugated pipe compensator at the position, so that the position of the corrugated pipe compensator leaked in the pipeline is ensured to be found in time. When high-pressure medium leaks, the direct injury of the high-pressure medium to personnel and the external environment is relieved due to the existence of the outer sound insulation structure.

As a preferred implementation mode of the isolation structure, the isolation structure comprises a high ring plate 4, a low ring plate 5 and an outer sheath 8, the high ring plate 4 is fixed on the outer side of the connecting pipe 3 on one side, the low ring plate 5 is fixed on the outer side of the connecting pipe 3 on the other side, one end of the outer sheath 8 is fixedly connected with the high ring plate 4, and the other end of the outer sheath is lapped with the outer side of the low ring plate 5.

The high ring plate 4 and the outer sheath 8 can be fixedly connected in a fastener mode, and the corrugated pipe compensator is convenient to disassemble and maintain. The outer sheath 8 is made of steel plates and mainly plays a role of supporting sound insulation materials, is lapped with the low ring plate 5 and can freely slide so as to ensure the axial movement of the corrugated pipe 1 and compensate the deformation of the pipeline. The sound insulation material is fixed outside the high ring plate 4, the low ring plate 5 and the outer sheath 8 through the steel wire mesh, and plays a role in counteracting external noise interference.

In order to prevent continuous sharp noise caused by sudden leakage of the medium from being transmitted to the outside or noise from being transmitted to the outside to cause interference, as an improvement, a sound insulation layer 6 is arranged on the outer side of the isolation structure. The sound-proofing material can be high damping deadening felt.

In order to prevent the corrugated pipe 1 from being damaged due to overlarge pressure inside the pipeline, as an improvement, reinforcing rings 2 are respectively arranged between adjacent corrugations of the corrugated pipe 1, and the reinforcing rings 2 and the corrugated pipe 1 are sleeved and attached.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a be applied to online leak hunting bellows compensator of high-pressure medium occasion, a serial communication port, including bellows (1), takeover (3) of being connected with bellows (1) both ends respectively, isolating structure, at least one sound sensor (7), data processing equipment (9) and terminal display device (10), isolating structure one end fixed connection is on takeover (3) of bellows (1) one side, other end fixed connection is on takeover (3) of bellows (1) opposite side, bellows (1), takeover (3) and isolating structure of both sides form the isolation chamber together, at least one sound sensor (7) set up in the isolation chamber, sound sensor (7) are connected with data processing device (9), data processing device (9) are connected with terminal display device (10).

2. The on-line leak detection corrugated pipe compensator applied to the high-pressure medium occasion is characterized in that the isolation structure comprises a high ring plate (4), a low ring plate (5) and an outer sheath (8), the high ring plate (4) is fixed on the outer side of the connecting pipe (3) on one side, the low ring plate (5) is fixed on the outer side of the connecting pipe (3) on the other side, one end of the outer sheath (8) is fixedly connected with the high ring plate (4), and the other end of the outer sheath is lapped with the outer side of the low ring plate (5).

3. The on-line leak detection bellows compensator for high pressure medium application according to claim 2, wherein an acoustic insulation layer (6) is provided outside the insulation structure.

4. The on-line leak detection bellows compensator for high pressure medium application according to claim 1, wherein a reinforcing ring (2) is provided between adjacent corrugations of the bellows (1).