High-temperature-resistant multi-layer expansion joint

Abstract

The utility model discloses a high-temperature-resistant multilayer expansion joint which comprises an expansion joint body, a protection assembly, a fixing assembly and a leakage monitoring assembly, and a first fixing pipe and a second fixing pipe are welded to the two sides of the expansion joint body. The protection assembly comprises a first transparent protection pipe abutting against the right side of the first fixing pipe, a second transparent protection pipe penetrating through the first transparent protection pipe and abutting against the second fixing pipe and an installation pipe arranged on the top of the second transparent protection pipe, and the fixing assembly is arranged on the first fixing pipe and the second fixing pipe. The leakage assembly comprises a mounting base connected to the top end of the mounting pipe through screws and a pressure sensor arranged at the bottom of the mounting base. According to the expansion joint, the protection assembly is arranged, the protection effect is achieved under the condition that expansion and contraction of the expansion joint body are not affected, the expansion and contraction part of the expansion joint body is effectively prevented from being damaged during installation or carrying, and meanwhile the leakage condition of the expansion and contraction part of the expansion joint body can be monitored in real time through the leakage monitoring assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of high temperature resistant multi-layer expansion joints, in particular to a high temperature resistant multi-layer expansion joint. Background Art

[0002] High temperature resistant multilayer expansion joint is a pipe or equipment connection component that works in a high temperature environment. Its main function is to compensate for the change in the size of the pipe or equipment caused by temperature difference and mechanical vibration. The multilayer design allows the expansion joint to have better strength and stability while compensating for thermal expansion. Each layer of material has its specific function and role. For example, the inner layer may be used for corrosion protection, the middle layer for heat insulation, and the outer layer for enhancing structural strength. When using a high temperature resistant multilayer expansion joint, since the pipe is retractable, the retractable part is easy to be damaged during installation or transportation. After being damaged, there will be a certain risk of leakage. There are certain shortcomings. For this reason, we proposed a high temperature resistant multilayer expansion joint. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art or related technologies.

[0004] To this end, the technical solution adopted by the utility model is: a high-temperature resistant multi-layer expansion joint, comprising an expansion joint body, a protective component, a fixing component and a leakage monitoring component, a first fixing tube and a second fixing tube are welded on both sides of the expansion joint body, the protective component comprises a first transparent protective tube abutting against the right side of the first fixing tube, a second transparent protective tube inserted in the first transparent protective tube and abutting against the second fixing tube, and a mounting tube arranged on the top of the second transparent protective tube, the fixing component is arranged on the first fixing tube and the second fixing tube, and the leakage component comprises a mounting seat screwed to the top of the mounting tube and a pressure sensor arranged at the bottom of the mounting seat.

[0005] Preferably, the first fixed tube and the second fixed tube have the same structure, and flanges for connecting pipelines are provided on the outer sides of the first fixed tube and the second fixed tube.

[0006] Preferably, the diameter of the first transparent protective tube is larger than that of the second transparent protective tube.

[0007] Preferably, the left side of the protection component is fixedly connected to the first fixed tube via a fastener, and the right side of the protection component is fixedly connected to the second fixed tube via a fastener, and the fastener is composed of a bolt and a nut.

[0008] Preferably, the fixing assembly includes a screw rod inserted into the first fixing tube and the second fixing tube and a nut threadably connected to the screw rod.

[0009] Preferably, the pressure sensor is electrically connected to the control terminal.

[0010] By adopting the above technical scheme, the beneficial effects achieved by the utility model are as follows: the utility model realizes the protective effect without affecting the expansion and contraction of the expansion joint body by setting the protective component, effectively avoiding the expansion joint body expansion and contraction parts from being damaged during installation or transportation, and at the same time, by setting the leakage monitoring component, the leakage of the expansion joint body expansion and contraction parts can be monitored in real time for use. When in use, the user can insert the first transparent protective tube and the second transparent protective tube of the protective component on the outside of the expansion joint body, and then weld the first fixed tube and the second fixed tube to the two sides of the expansion joint body, and then fix the first fixed tube to the first transparent protective tube by fasteners. The first transparent protective tube and the second transparent protective tube are used to cover the expansion joint body's telescopic part for protection. At the same time, the expansion joint body's telescopic condition can be observed through the first transparent protective tube and the second transparent protective tube. Then, the mounting seat of the leakage monitoring component can be fixed on the mounting tube by screws. After installation, when the expansion joint body's telescopic part leaks, the medium will flow into the mounting tube due to gravity, and then the pressure sensor will detect the pressure and convert it into an output signal to be transmitted to the control terminal, so as to monitor the leakage of the expansion joint body's telescopic part in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the main body of the expansion joint;

[0013] Figure 3 It is a schematic diagram of the structure of the protective component of the utility model;

[0014] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of the installation pipe and leakage monitoring component.

[0015] Reference numerals:

[0016] 100, expansion joint body; 101, first fixed pipe; 102, second fixed pipe; 103, flange;

[0017] 200, protection assembly; 201, first transparent protection tube; 202, second transparent protection tube; 203, installation tube;

[0018] 300, fixing assembly; 301, screw rod; 302, nut;

[0019] 400, fasteners;

[0020] 500. Leakage monitoring component; 501. Mounting seat; 502. Pressure sensor. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0022] Some embodiments of the present invention are described below in conjunction with the accompanying drawings to provide a high temperature resistant multi-layer expansion joint.

[0023] Embodiment 1:

[0024] Reference Figure 1-4 , which is the first embodiment of the utility model, provides a high temperature resistant multi-layer expansion joint, including an expansion joint body 100, a protective component 200, a fixing component 300 and a leakage monitoring component 500.

[0025] Specifically, a first fixed pipe 101 and a second fixed pipe 102 are welded on both sides of the expansion joint body 100. The first fixed pipe 101 and the second fixed pipe 102 have the same structure. Flanges 103 for connecting pipes are provided on the outer sides of the first fixed pipe 101 and the second fixed pipe 102. When in use, the expansion joint body 100 can be extended and retracted for compensation. The first fixed pipe 101 and the second fixed pipe 102 are used to install the protective assembly 200.

[0026] Specifically, the protection component 200 includes a first transparent protection tube 201 abutting against the right side of the first fixed tube 101, a second transparent protection tube 202 inserted in the first transparent protection tube 201 and abutting against the second fixed tube 102, and a mounting tube 203 arranged on the top of the second transparent protection tube 202. The diameter of the first transparent protection tube 201 is larger than that of the second transparent protection tube 202. When used, the first transparent protection tube 201 and the second transparent protection tube 202 can cooperate to cover the telescopic part of the expansion joint body 100 for protection. At the same time, the telescopic condition of the expansion joint body 100 can be observed through the first transparent protection tube 201 and the second transparent protection tube 202.

[0027] Furthermore, the left side of the protection component 200 is fixedly connected to the first fixed tube 101 by a fastener 400, and the right side of the protection component 200 is fixedly connected to the second fixed tube 102 by a fastener 400. The fastener 400 is composed of a bolt and a nut. In specific use, the user can insert the first transparent protection tube 201 and the second transparent protection tube 202 of the protection component 200 on the outside of the expansion joint body 100, and then weld the first fixed tube 101 and the second fixed tube 102 on both sides of the expansion joint body 100, and then fix the first fixed tube 101 to the first transparent protection tube 201 by the fastener 400, and at the same time fix the second fixed tube 102 to the second transparent protection tube 202 by the fastener 400 for installation.

[0028] Specifically, the fixing assembly 300 is arranged on the first fixing tube 101 and the second fixing tube 102. The fixing assembly 300 includes a screw 301 inserted into the first fixing tube 101 and the second fixing tube 102 and a nut 302 threadedly connected to the screw 301. When in specific use, the fixing assembly 300 is used to fix the first fixing tube 101 and the second fixing tube 102, so that the expansion joint body 100 can only move in the horizontal direction to facilitate extension and retraction.

[0029] Specifically, the leakage monitoring component 500 includes a mounting base 501 screwed to the top of the mounting tube 203 and a pressure sensor 502 arranged at the bottom of the mounting base 501. The pressure sensor 502 is electrically connected to the control terminal. During specific use, when leakage occurs at the telescopic part of the expansion joint body 100, the medium will flow into the mounting tube 203 due to the action of gravity, and then the pressure sensor 502 will detect the pressure and convert it into an output signal to be transmitted to the control terminal, so as to monitor the leakage of the telescopic part of the expansion joint body 100 in real time.

[0030] The working principle and use process of the utility model are as follows: when in use, the user can insert the first transparent protective tube 201 and the second transparent protective tube 202 of the protective assembly 200 into the outside of the expansion joint body 100, and then weld the first fixed tube 101 and the second fixed tube 102 to the two sides of the expansion joint body 100, and then fix the first fixed tube 101 to the first transparent protective tube 201 through the fastener 400, and fix the second fixed tube 102 to the second transparent protective tube 202 through the fastener 400, and then fix the first transparent protective tube 201 and the second transparent protective tube 202 through the fastener 400. The cover can cover the telescopic part of the expansion joint body 100 for protection, and the telescopic condition of the expansion joint body 100 can be observed through the first transparent protective tube 201 and the second transparent protective tube 202. Then, the mounting seat 501 of the leakage monitoring component 500 can be fixed on the mounting tube 203 by screws. After installation, when the telescopic part of the expansion joint body 100 leaks, the medium will flow into the mounting tube 203 due to the effect of gravity, and then the pressure sensor 502 will detect the pressure and convert it into an output signal to be transmitted to the control terminal, so that the leakage of the telescopic part of the expansion joint body 100 can be monitored in real time.

[0031] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high temperature resistant multi-layer expansion joint, characterized in that: include: An expansion joint body (100), wherein a first fixing pipe (101) and a second fixing pipe (102) are welded on both sides of the expansion joint body (100); A protection component (200), the protection component (200) comprising a first transparent protection tube (201) abutting against the right side of the first fixed tube (101), a second transparent protection tube (202) inserted into the first transparent protection tube (201) and abutting against the second fixed tube (102), and a mounting tube (203) arranged on the top of the second transparent protection tube (202); A fixing assembly (300), wherein the fixing assembly (300) is arranged on the first fixing tube (101) and the second fixing tube (102); A leakage monitoring assembly (500) comprises a mounting seat (501) screwed to the top of the mounting tube (203) and a pressure sensor (502) arranged at the bottom of the mounting seat (501).

2. A high temperature resistant multi-layer expansion joint according to claim 1, characterized in that: The first fixed pipe (101) and the second fixed pipe (102) have the same structure, and flanges (103) for connecting pipelines are arranged on the outer sides of the first fixed pipe (101) and the second fixed pipe (102).

3. A high temperature resistant multi-layer expansion joint according to claim 1, characterized in that: The diameter of the first transparent protective tube (201) is larger than that of the second transparent protective tube (202).

4. A high temperature resistant multi-layer expansion joint according to claim 1, characterized in that: The left side of the protection component (200) is fixedly connected to the first fixed tube (101) via a fastener (400), and the right side of the protection component (200) is fixedly connected to the second fixed tube (102) via a fastener (400), wherein the fastener (400) is composed of a bolt and a nut.

5. The high temperature resistant multi-layer expansion joint according to claim 1, characterized in that: The fixing assembly (300) comprises a screw rod (301) inserted into the first fixing tube (101) and the second fixing tube (102), and a nut (302) threadedly connected to the screw rod (301).

6. A high temperature resistant multi-layer expansion joint according to claim 1, characterized in that: The pressure sensor (502) is electrically connected to the control terminal.

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