Rotary compensator with leakage monitoring function

Abstract

A rotary compensator with a leakage monitoring function is used for compensating expansion caused by heat and contraction caused by cold of a pipeline. The utility model relates to a high-voltage electric connector, which comprises an outer tube (6), an inner tube (4) and a pressing sleeve (3), the inner tube is inserted in the outer tube, a sealing filler (5) is arranged between the outer tube and the inner tube, the right end face of the pressing sleeve is attached to the sealing filler, and the high-voltage electric connector is characterized in that a through hole (16) is arranged on the wall of the left part of the pressing sleeve, an opening part of the through hole is connected with an insulating sleeve (13), a rod body (14) made of a metal material is inserted in the insulating sleeve, and the rod body and the inner wall of the through hole form a conductivity electrode (17). The beneficial effects of the utility model are that the electric conductor and the pressing sleeve form a conductivity electrode, whether leakage exists can be reflected by measuring the conductivity change of the conductivity electrode, and a lead on the conductivity electrode can be led to a position which can be contacted by a detector, so that the measurement is convenient, and the labor intensity of detection can be reduced; online monitoring can be conveniently carried out, and the sealing condition of the rotary compensator can be monitored in real time; the interference of external water spraying on leakage detection can be avoided, and the detection is accurate.

Description

Technical Field

[0001] The utility model relates to a rotary compensator for compensating the thermal expansion and contraction of pipelines. Background Art

[0002] After the rotary compensator operates for a period of time, the sealing material will wear and leakage will occur, which requires regular inspection. Usually, it is manual visual inspection. This method cannot detect leakage in time. In addition, due to the installation position of the rotary compensator, such as being installed underground or at a high altitude, it is inconvenient for visual inspection. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides a rotary compensator with a leakage monitoring function, which has a leakage monitoring function and can timely reflect the leakage situation, overcoming the deficiencies of manual detection.

[0004] The technical solution of the utility model is a rotary compensator with a leakage monitoring function, which includes an outer pipe 6, an inner pipe 4, and a gland 3. The right part of the outer pipe is reduced in diameter and shrunk. The inner pipe is inserted into the outer pipe. A sealing packing 5 is arranged between the outer pipe and the inner pipe. The right end face of the gland is in contact with the sealing packing. The feature is that a through hole 16 is arranged on the wall of the left part of the gland. An insulating sleeve 13 is connected to the opening of the through hole. A rod body 14 made of a metal material is inserted into the insulating sleeve. The rod body and the inner wall of the through hole form a conductivity electrode 17.

[0005] The above structure can facilitate on-line monitoring. The conductivity electrode is connected to the input end of a conductivity meter 18, and the output end of the conductivity meter has the function of transmitting measurement data.

[0006] The beneficial effects of the utility model are that the conductor and the gland form a conductivity electrode. By measuring the change of its conductivity, it can reflect whether there is leakage. The wire on the conductivity electrode can be led to a position accessible to the inspector, which is convenient for measurement and can reduce the labor intensity of detection;

[0007] It can facilitate on-line monitoring and real-time monitor the sealing condition of the rotary compensator;

[0008] It can avoid the interference of external water spraying on leakage detection and the detection is accurate. Description of the Drawings

[0009] Figure 1 is a schematic structural diagram of the utility model.

[0010] Figure 2 is Figure 1 the enlarged view of part C of

[0011] Figure 3 is a block diagram of the detection principle.

[0012] The drawing reference signs are: 1 waterproof plate, 2 - sealing ring, 3 - compression sleeve, 4 - inner pipe, 5 - sealing packing, 6 - outer pipe, 7 - reduced-diameter wall, 8 - connecting pipe, 9 - compression sleeve flange, 10 - outer pipe flange, 11 - bolt, 12 - drain hole, 13 - insulating sleeve, 14 - rod body, 15 - threaded part, 16 - through hole, 17 - conductivity electrode, 18 - conductivity measuring instrument. Detailed implementation manners

[0013] A rotary compensator with a leakage monitoring function, which comprises an outer pipe 6, an inner pipe 4, and a compression sleeve 3. The right part of the outer pipe is reduced in diameter and shrunk, and a connecting pipe 8 is hermetically welded to the shrinking part. The inner pipe is inserted into the outer pipe. A sealing packing 5 is arranged between the outer pipe and the inner pipe. The reduced-diameter wall 7 of the outer pipe is in contact with the right end face of the sealing packing. A compression sleeve flange 9 is arranged in the middle of the compression sleeve. The right end face of the compression sleeve is in contact with the sealing packing. The compression sleeve flange is connected to the outer pipe flange 10 of the outer pipe through bolts 11.

[0014] A through hole 16 is arranged on the wall of the left part of the compression sleeve. An insulating sleeve 13 is inserted into the opening of the through hole. The insulating sleeve has a flange, and the flange is connected to the outer wall of the compression sleeve. A rod body 14 made of a metallic material is inserted into the insulating sleeve. The lower part of the rod body has a threaded part 15 with a reduced diameter, and the threaded part is connected to the insulating sleeve. The top end of the rod body is flush with the inner wall of the compression sleeve. The rod body and the inner wall of the through hole form a conductivity electrode 17.

[0015] Its working principle is that the rod body and the compression sleeve form a conductivity electrode. When there is no electrolyte solution in the conductivity electrode, the conductance between them is close to 0. When there is electrolyte solution in the conductivity electrode, the conductance increases. Whether there is leakage can be judged by detecting the conductance. When the sealing performance of the rotary compensator deteriorates, the leakage path of the fluid medium is: through the contact surface between the inner pipe and the sealing packing → the inner wall of the left part of the compression sleeve → flowing out from the left end of the compression sleeve. When the leaked fluid accumulates between the conductivity electrodes, the conductance increases, and whether there is leakage can be judged by detecting the conductance.

[0016] The detection of the conductance can be carried out manually. The wire on the conductivity electrode can be led to a position accessible to the detector, so as to overcome the problem that the installation position of the rotary compensator is not conducive to manual detection, and the detection is convenient.

[0017] The detection of the conductance can be carried out automatically. The conductivity electrode 17 is connected to the input end of a conductivity measuring instrument 18, and the output end of the conductivity measuring instrument has the function of transmitting measurement data.

[0018] A ring-shaped water baffle 1 is connected to the left end of the compression sleeve. A sealing ring 2 is arranged between the inner circle of the water baffle and the inner pipe. Adopting such a structure can prevent external rainwater or sprinkling water from entering the conductivity electrode, and ensure the accuracy of leakage detection.

[0019] A drain hole 12 is arranged on the compression sleeve. The drain hole is located on the left side of the through hole. The function of the drain hole is to let the leaked fluid flow out of the compression sleeve.

[0020] In use, the extended end of the inner tube of the rotary compensator is connected to a cross-section of the pipeline, and the connecting pipe of the rotary compensator is connected to a cross-section of the pipeline. When the pipeline expands or contracts due to temperature changes, the outer tube and the inner tube of the rotary compensator rotate relative to each other to compensate for the expansion and contraction of the pipeline.

Claims

1. A rotary compensator with a leakage monitoring function, comprising an outer pipe (6), an inner pipe (4), and a gland (3). The right part of the outer pipe is reduced in diameter and shrunk. The inner pipe is inserted into the outer pipe. A sealing packing (5) is provided between the outer pipe and the inner pipe. The right end face of the gland is in contact with the sealing packing. It is characterized in that, A through hole (16) is provided on the wall of the left part of the compression sleeve. An insulating sleeve (13) is connected to the opening of the through hole. A rod body (14) made of a metal material is inserted into the insulating sleeve. The rod body and the inner wall of the through hole form a conductivity electrode (17).

2. The rotating compensator with leakage monitoring function according to claim 1, characterized in that, The conductivity electrode is connected to the input end of a conductivity measuring instrument (18). The output end of the conductivity measuring instrument has the function of transmitting measurement data.

3. The rotating compensator with leakage monitoring function according to claim 1, characterized in that A ring-shaped water baffle (1) is connected to the left end of the compression sleeve. A sealing ring (2) is provided between the inner circle of the water baffle and the inner tube.

4. The rotating compensator with leakage monitoring function according to claim 1, characterized in that, A drain hole (12) is provided on the compression sleeve. The drain hole is located on the left side of the through hole.

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