Compensator monitoring signal line installation structure and installation method thereof

Abstract

A compensator monitoring signal line installation structure and an installation method thereof, wherein a telescopic sleeve is provided at the movable end of the compensator, and the signal line passes through the telescopic sleeve. The signal line in the telescopic sleeve is coiled into a spring shape. Compared with the existing technology, the beneficial effects of the present invention are: 1) The signal lines move in their respective sleeves to avoid mutual entanglement and overlap. 2) The signal line is in the shape of a spiral spring and will not bend irregularly to cause breakage or knotting, resulting in signal line failure. 3) The signal line is in the sleeve to prevent external debris from entering and wearing the signal line. 4) The end seal separates the compensator from the insulation layer of the connected pipeline, forming an independent insulation sealing structure. When a leakage failure occurs in the compensator, it will not affect the adjacent pipelines.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated direct-buried thermal insulation compensator installation, and in particular to a compensator monitoring signal line installation structure and an installation method thereof. Background Art

[0002] Prefabricated direct-buried thermal insulation compensators are commonly used pipeline accessories in the national heating sector's heating network. Pipeline leakage monitoring system signal lines are installed in the insulation layer of the pipeline and pipeline accessories.

[0003] Similar products in the industry typically route signal cables directly within the insulation layer, with the compensator's compensating section placed within or on the insulation layer. Because two or four signal cables are routed simultaneously, concentrated above the pipe, when the compensating section is compressed during operation, the resulting state of these cables is uncontrollable, leading to overlapping, entanglement, and even breakage. Summary of the Invention

[0004] The purpose of the present invention is to provide a compensator monitoring signal line installation structure and installation method, and to rationally arrange the installation structure and installation method of the signal line in the compensator so that the signal lines will not overlap, become entangled, or break when the compensator is working, thereby ensuring the effective operation of the system.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A compensator monitoring signal line installation structure is provided. A telescopic sleeve is provided at the movable end of the compensator, and the signal line passes through the telescopic sleeve.

[0007] The signal line in the telescopic sleeve is coiled into a spring shape.

[0008] The telescopic sleeve includes a fixed sleeve, a fixed sleeve connector, and a movable sleeve. The fixed sleeve connector is fixed to the fixed end of the compensator. One end of the fixed sleeve is fixedly connected to the outlet of the fixed sleeve connector. The movable sleeve is movably sleeved with the other end of the fixed sleeve. The movable sleeve is fixedly connected to the movable end of the compensator.

[0009] The signal wires in the fixed sleeve and the movable sleeve are coiled into a spring shape.

[0010] The signal line is relatively fixed to the movable sleeve at the outlet end of the movable sleeve, and relatively fixed to the fixed sleeve connector at the inlet end of the fixed sleeve connector.

[0011] A signal line bracket is provided at the outlet of the movable sleeve.

[0012] It also includes end seals, heat shrinkable tape seals, and cable waterproof joint seals. The end seals are installed at both ends of the compensator's thermal insulation outer protective tube, and the heat shrinkable tape seals are wrapped around the junction of the compensator's thermal insulation outer protective tube and the end seals. The cable waterproof joint seals are installed on the end face of the end seals, and the signal line is sealed and connected to the end seals through the cable waterproof joint seals.

[0013] A plurality of signal line brackets are installed in the insulation layer inside the compensator insulation outer protective tube, and the signal lines are positioned by the signal line brackets.

[0014] A method for installing a compensator monitoring signal line installation structure comprises the following steps:

[0015] 1) Signal line installation: Fix the signal line at the fixed end of the compensator to the compensator with a signal line bracket;

[0016] 2) Weld the fixed sleeve connector to the fixed sleeve, and then weld the fixed sleeve connector to the end face of the compensator fixed end;

[0017] 3) At the movable end of the compensator, first wrap the signal line around the steel rod to make the signal line coiled like a spiral spring. Then, insert the signal line into the fixed sleeve connector and pull the signal line out from the other end of the movable sleeve through the fixed sleeve.

[0018] 4) Use high-temperature resistant glue to seal the signal line inlet end of the fixed sleeve connector and the signal line outlet end of the movable sleeve;

[0019] 5) Fix the signal line of the active end of the compensator with the signal line bracket; install the compensator insulation outer protective tube on the active end of the compensator and use foam insulation;

[0020] 6) Installation of the end seal of the compensator: first install the cable waterproof joint seal on the end seal, then put the end seal on both ends of the compensator insulation outer protective tube, and weld the end seal to the compensator;

[0021] 7) Use heat shrink tape to seal the overlap between the end seal and the compensator insulation outer protective tube.

[0022] Compared with the existing technology, the beneficial effects of the present invention are:

[0023] 1) The signal cables should be moved in their respective casings to avoid entanglement and overlap.

[0024] 2) The signal line is in the shape of a spiral spring, and there will be no irregular bending that may cause breakage or knotting, resulting in signal line failure.

[0025] 3) The signal line is in the casing to prevent external debris from entering and wearing out the signal line.

[0026] 4) The end seal separates the compensator from the insulation layer of the connected pipe, forming an independent insulation sealing structure. When the compensator leaks, it will not affect the adjacent pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of a compensator monitoring signal line installation structure of the present invention;

[0028] Figure 2 This is an enlarged view of the connection structure of the telescopic sleeve;

[0029] In the figure: 1. Signal line 2. Cable waterproof connector seal 3. Signal line bracket 4. Compensator insulation outer protective tube 5. Fixed sleeve connector 6. Fixed sleeve 7. Movable sleeve 8. Signal line bracket 9. Heat shrink tape seal 10. End seal 11. Compensator 12. Compensator fixed end 13. Compensator movable end 14. Middle compensating section outer protective tube. DETAILED DESCRIPTION

[0030] The following further describes the embodiments of the present invention in conjunction with specific examples:

[0031] like Figure 1-Figure 2 As shown, a compensator monitoring signal line installation structure is provided, a telescopic sleeve is provided at the movable end of the compensator, and the signal line 1 passes through the telescopic sleeve.

[0032] The signal line in the telescopic sleeve is coiled into a spring shape.

[0033] The telescopic sleeve includes a fixed sleeve 6, a fixed sleeve connector 5, and a movable sleeve 7. The fixed sleeve connector 5 is fixed to the fixed end 12 of the compensator. One end of the fixed sleeve 6 is fixedly connected to the outlet of the fixed sleeve connector 5. The movable sleeve 7 is movably connected to the other end of the fixed sleeve 6. The movable sleeve 7 is fixedly connected to the movable end 13 of the compensator.

[0034] The signal line 1 in the fixed sleeve 6 and the movable sleeve 7 is coiled into a spring shape.

[0035] The signal line 1 is fixed relatively to the movable sleeve 6 at the outlet end of the movable sleeve 6 , and is fixed relatively to the fixed sleeve connector 5 at the inlet end of the fixed sleeve connector 5 .

[0036] A signal line bracket 8 is provided at the outlet of the movable sleeve 7 .

[0037] The compensator also includes end seals 10, heat shrink tape seals 9, and a cable waterproof joint seal 2. The end seals 10 are installed at both ends of the compensator's thermal insulation outer tube 4. The heat shrink tape seal 9 is wrapped around the junction of the compensator's thermal insulation outer tube 4 and the end seals 10, forming an independent waterproof seal for the compensator. The cable waterproof joint seal 2 is installed on the end face of the end seal 10. The signal line 1 is sealed and connected to the end seal 10 through the cable waterproof joint seal 2. The end seal 10 is made of stainless steel.

[0038] Several signal line brackets 8 are installed in the insulation layer inside the compensator insulation outer protective tube 4 , and the signal line 1 is positioned by the signal line brackets 8 .

[0039] The compensator's insulated outer tube 4 consists of three parts: the fixed end 12, the intermediate compensating section 14, and the movable end 13. The fixed end 12 and intermediate compensating section 14 are welded together, while the intermediate compensating section 14 and movable end 13 are sleeved and waterproofed, allowing relative axial movement. The intermediate compensating section 14 is insulated with a soft, flexible insulation material.

[0040] A method for installing a compensator monitoring signal line installation structure comprises the following steps:

[0041] 1) Signal line installation: Cut the signal line 1 to an appropriate length and secure the signal line 1 at the compensator fixed end 12 to the compensator using the signal line bracket 8. The number of signal lines 1 is determined according to the standard specifications. Install the compensator insulation outer protective tube 4 on the compensator fixed end 12 and apply foam insulation to the compensator fixed end 12.

[0042] 2) Weld the fixed sleeve connector 5 to the fixed sleeve 6, and then weld the fixed sleeve connector 5 to the end face of the compensator fixed end 12; the number of fixed sleeve connectors 5 is the same as the number of signal lines 1, and their positions are aligned with the position of signal line 1;

[0043] 3) At the compensator's movable end 13, first wrap the signal line 1 around a steel rod with a diameter of 10-20 mm, so that the signal line 1 is coiled like a helical spring. Then, insert the signal line 1 into the fixed sleeve connector 5 and pull the signal line 1 out from the other end of the movable sleeve 7 through the fixed sleeve 6.

[0044] 4) Use high-temperature resistant glue to seal the signal line inlet end of the fixed sleeve connector 5 and the signal line outlet end of the movable sleeve 7;

[0045] 5) Fix the signal line 1 of the compensator movable end 13 with the signal line bracket 8; cover the compensator insulation outer protective tube 4 of the compensator movable end 13 with foam insulation;

[0046] 6) For the middle compensation section of the compensator, the insulation material should be a soft insulation material that is compressible and has good resilience; install the outer protective tube 14 of the middle compensation section of the compensator and waterproof seal;

[0047] 7) Installation of the compensator end seal 10: First install the cable waterproof joint seal 2 on the end seal 10, then put the end seal 10 on both ends of the compensator insulation outer protective tube 4, and weld the end seal 10 to the compensator with argon arc welding; perform penetrant flaw detection on the weld.

[0048] 8) Use heat shrink tape seal 9 to bond and seal the overlap between the end seal 10 and the compensator insulation outer protective tube 4.

[0049] The fixed sleeve 6 is connected to the compensator's fixed end 12 via a fixed sleeve connector 5. The movable sleeve 7 fits over the fixed sleeve 6 and can move axially along the fixed sleeve 6 in sync with the compensator's compression and extension. Each set of fixed and movable sleeves 6 and 7 contains a spring-wound signal line 1. As the compensator compresses and extends axially, the signal line 1 compresses and extends within the telescopic sleeve.

[0050] End seals are installed at both ends of the compensator insulation layer. When there is water leakage in the compensator insulation layer, the end seals will act as a seal to prevent the water from continuing to penetrate or flow into the connected pipes at both ends of the compensator.

Claims

1. A compensator monitoring signal line installation structure, characterized in that: A telescopic sleeve is provided at the movable end of the compensator, and the signal line passes through the telescopic sleeve; The signal line in the telescopic sleeve is coiled into a spring shape; The telescopic sleeve includes a fixed sleeve, a fixed sleeve connector, and a movable sleeve. The fixed sleeve connector is fixed to the fixed end of the compensator. One end of the fixed sleeve is fixedly connected to the outlet of the fixed sleeve connector. The movable sleeve is movably connected to the other end of the fixed sleeve and is fixedly connected to the movable end of the compensator. The signal wires in the fixed sleeve and the movable sleeve are coiled into a spring shape; The signal line is fixed relatively to the movable sleeve at the outlet end of the movable sleeve, and is fixed relatively to the fixed sleeve connector at the inlet end of the fixed sleeve connector; There is a signal wire coiled into a spring shape in each set of fixed sleeves and movable sleeves. When the compensator is axially compressed and extended, the signal wire is compressed and extended accordingly in the telescopic sleeve. The signal wires move in their respective sleeves to avoid mutual entanglement and overlap.

2. The compensator monitoring signal line installation structure according to claim 1, characterized in that: A signal line bracket is provided at the outlet of the movable sleeve.

3. A compensator monitoring signal line installation structure according to claim 1 or 2, characterized in that: It also includes end seals, heat shrinkable tape seals, and cable waterproof joint seals. The end seals are installed at both ends of the compensator's thermal insulation outer protective tube, and the heat shrinkable tape seals are wrapped around the junction of the compensator's thermal insulation outer protective tube and the end seals. The cable waterproof joint seals are installed on the end face of the end seals, and the signal line is sealed and connected to the end seals through the cable waterproof joint seals.

4. The compensator monitoring signal line installation structure according to claim 3, characterized in that: A plurality of signal line brackets are installed in the insulation layer inside the compensator insulation outer protective tube, and the signal lines are positioned by the signal line brackets.

5. A method for installing a compensator monitoring signal line installation structure according to any one of claims 1 to 4, characterized in that: The steps include: 1) Signal line installation: Fix the signal line at the fixed end of the compensator to the compensator with a signal line bracket; 2) Weld the fixed sleeve connector to the fixed sleeve, and then weld the fixed sleeve connector to the end face of the compensator fixed end; 3) At the movable end of the compensator, first wrap the signal line around the steel rod to make the signal line coiled like a spiral spring. Then, insert the signal line into the fixed sleeve connector and pull the signal line out from the other end of the movable sleeve through the fixed sleeve. 4) Use high-temperature resistant glue to seal the signal line inlet end of the fixed sleeve connector and the signal line outlet end of the movable sleeve; 5) Fix the signal line of the active end of the compensator with the signal line bracket; install the compensator insulation outer protective tube on the active end of the compensator and use foam insulation; 6) Installation of the end seal of the compensator: first install the cable waterproof joint seal on the end seal, then put the end seal on both ends of the compensator insulation outer protective tube, and weld the end seal to the compensator; 7) Use heat shrink tape to seal the overlap between the end seal and the compensator insulation outer protective tube.

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