High-temperature-resistant non-metal compensator

Abstract

The utility model provides a high-temperature-resistant non-metal compensator, which relates to the technical field of compensators, and comprises a feeding end flange and a discharging end flange, the inner sides of the feeding end flange and the discharging end flange are connected with material conveying pipes, the material conveying pipes are flexibly connected through a corrugated pipe, and the two ends of the corrugated pipe are hermetically fixed with the material conveying pipes through connecting rings; symmetrical arc-shaped sealing covers are arranged on the outer side of the conveying pipe, and the two arc-shaped sealing covers are detachably connected to form a closed cavity used for wrapping the corrugated pipe; the arc-shaped sealing cover at the bottom is provided with a leaked liquid collecting hole, the lower portion of the leaked liquid collecting hole is connected with an alarm box, a weighing sensor is arranged in the alarm box, and the weighing sensor is electrically connected with an alarm. A traditional compensator is not integrated with a leakage monitoring device, depends on manual regular inspection, and has the technical problems of low efficiency and hysteresis.

Description

Technical Field

[0001] This utility model mainly relates to the field of compensator technology, specifically to a high-temperature resistant non-metallic compensator. Background Technology

[0002] Non-metallic compensators (also known as non-metallic expansion joints) are widely used in high-temperature pipeline systems in industries such as power, metallurgy, and chemicals, primarily to absorb thermal displacement and reduce vibration and noise. Their core structure is typically made of multiple layers of flexible non-metallic materials (such as fluororubber, silicone, and fiberglass cloth), offering advantages such as high temperature resistance and corrosion resistance. However, under prolonged exposure to high temperatures, high pressures, and corrosive media, the bellows section of non-metallic compensators is prone to aging, cracking, and even damage, leading to media leakage and affecting the safe operation of the system.

[0003] During the operation of specific embodiments, the inventors discovered the following defects:

[0004] Currently, common non-metallic compensators on the market have the following problems in terms of leakage monitoring. First, leaks are difficult to detect in a timely manner. Since non-metallic compensators are usually installed in concealed or high-altitude locations, leaks are difficult to detect through manual inspections in the early stages. They are often only detected when the leak is serious, which may have already caused equipment damage or environmental pollution. Second, they lack automatic alarm functions. Traditional compensators do not integrate leakage monitoring devices and rely on manual periodic inspections, which is inefficient and has a lag.

[0005] It should be noted that the above content falls within the scope of technical knowledge of those skilled in the art. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0006] 1. The technical problem to be solved by the utility model:

[0007] This utility model provides a high-temperature resistant non-metallic compensator to solve the technical problems existing in the background art.

[0008] 2. Technical Solution:

[0009] To achieve the above objectives, the technical solution provided by this utility model is as follows: a high-temperature resistant non-metallic compensator, including an inlet flange and an outlet flange, wherein a conveying pipe is connected to the inner side of the inlet flange and the outlet flange, the conveying pipe is flexibly connected by a corrugated pipe, and the two ends of the corrugated pipe are sealed and fixed to the conveying pipe by connecting rings;

[0010] The outer side of the conveying pipe is provided with symmetrical arc-shaped sealing covers. The two arc-shaped sealing covers are detachably connected to form a sealed cavity for wrapping the corrugated pipe.

[0011] The bottom arc-shaped sealing cover is provided with a leakage collection hole, and an alarm box is connected below the leakage collection hole. A weighing sensor is provided inside the alarm box, and the weighing sensor is electrically connected to the alarm.

[0012] When the bellows leaks, the liquid flows into the arc-shaped sealing cover and enters the alarm box through the leakage collection hole. When the weighing sensor detects that the liquid weight reaches a set threshold, it triggers the alarm to issue a warning signal. In this embodiment, an adjustable pull rod is also provided on the outside of the inlet flange and the outlet flange. The compensation amount is controlled by the limit pull rod and nut to prevent overload. When the device is working, after connecting the inlet flange, the outlet flange, the conveying pipe and the bellows, an arc-shaped sealing cover is installed on both sides of the bellows, and the end with the alarm box is vertically set at the bottom. In this embodiment, the weighing sensor installed in the alarm box adopts a high-temperature resistant strain gauge structure, and its sensing end is connected to a detachable liquid collection container. The weighing sensor is connected to the alarm through a high-temperature resistant cable. The outer layer of the cable is covered with a ceramic fiber heat insulation layer. The working principle of the weighing sensor is: when the leaked liquid enters the liquid collection container through the leakage collection hole, the increased weight of the container causes the strain gauge of the weighing sensor to deform, thereby generating a corresponding change in electrical signal. The electrical signal is amplified and filtered by a signal conditioning circuit before being transmitted to the control unit of the alarm. The alarm includes a comparison circuit and an alarm output module. The comparison circuit has a preset weight threshold; when the received signal exceeds this threshold, the alarm output module is triggered. The alarm output module can be configured as a buzzer or an LED indicator, depending on requirements. An isolated power supply is also provided in the alarm box to power the above devices. It should be noted that the working principle of this device, which triggers the alarm using a weighing sensor, adopts existing technology. The system principles are not elaborated here. If necessary, a high-temperature resistant wireless transmission module can also be installed, which can send the alarm signal to the central control room after receiving the signal.

[0013] Furthermore, the alarm box has a power storage slot at the bottom, which is snapped into a protective cover.

[0014] Furthermore, an arc-shaped rubber pad is provided at the intersection of the outer end of the arc-shaped sealing cover and the material conveying pipe, and the length of the arc-shaped sealing cover is greater than the maximum unfolding of the corrugated pipe.

[0015] Furthermore, the outer side of the arc-shaped sealing cover is symmetrically provided with snap-fit ​​plates, and the snap-fit ​​plates have connection holes, which are connected by bolts.

[0016] Furthermore, a sealing gasket is provided on the intersecting side of the snap-fit ​​plates.

[0017] Furthermore, the leakage collection hole is located in the middle of the arc-shaped guide channel, which is high at both ends and low in the middle.

[0018] Furthermore, the end face of the feed end flange is evenly distributed with multiple locking holes in a ring. The locking holes are detachably connected to the filter ring by bolts. The filter ring includes an annular frame and a circular filter sheet fixed in the frame.

[0019] 3. Beneficial effects:

[0020] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0021] This utility model is reasonably designed. Through the combination of a detachable arc-shaped sealing cover and a weighing alarm system, it achieves real-time monitoring and accurate alarm of bellows leakage, significantly improving equipment safety. The modular quick-release structure and multiple sealing design ensure both convenient maintenance and effective collection of leaked liquid, improving detection accuracy and reliability. The innovative filter ring provides the functional advantage of preventing clogging.

[0022] It should be noted that the structures not described in this utility model are not related to the design points and improvement directions of this utility model, and are the same as or can be implemented by existing technology, so they will not be elaborated here. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the corrugated pipe structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the arc-shaped sealing cover structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the internal structure of the arc-shaped sealing cover of this utility model.

[0027] Figure label:

[0028] 1. Inlet flange; 2. Outlet flange; 3. Conveyor pipe; 31. Arc-shaped rubber gasket; 4. Bellows; 5. Arc-shaped sealing cover; 51. Snap-fit ​​plate; 52. Connection hole; 6. Leakage collection hole; 61. Arc-shaped guide groove; 7. Alarm box; 71. Protective cover; 11. Locking hole; 12. Annular frame; 13. Circular filter plate. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] It should be noted that structures not described in this invention do not involve the design points and improvement directions of this invention, and can all be achieved using existing technologies known to those skilled in the art.

[0034] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0035] See attached document Figure 1-4A high-temperature resistant non-metallic compensator includes an inlet flange 1 and an outlet flange 2. The inlet flange 1 and the outlet flange 2 are connected to the inner side of a conveying pipe 3. The conveying pipes 3 are flexibly connected by a corrugated pipe 4. The two ends of the corrugated pipe 4 are sealed and fixed to the conveying pipe 3 by connecting rings.

[0036] The outer side of the conveying pipe 3 is provided with symmetrical arc-shaped sealing covers 5. The two arc-shaped sealing covers 5 are detachably connected to form a sealed cavity for wrapping the corrugated pipe 4.

[0037] The bottom arc-shaped sealing cover 5 is provided with a leakage collection hole 6. An alarm box 7 is connected below the leakage collection hole 6. A weighing sensor is provided inside the alarm box 7. The weighing sensor is electrically connected to the alarm.

[0038] When the bellows 4 leaks, the liquid flows into the arc-shaped sealing cover 5 and enters the alarm box 7 through the leakage collection hole 6. When the weighing sensor detects that the liquid weight reaches the set threshold, it triggers the alarm to issue a warning signal. In this embodiment, an adjustable pull rod is also provided on the outside of the inlet flange 1 and the outlet flange 2. The compensation amount is controlled by the limit pull rod and nut to prevent overload. When the device is working, after connecting the inlet flange 1, the outlet flange 2, the conveying pipe 3 and the bellows 4, arc-shaped sealing covers 5 are installed on both sides of the bellows 4, and the end with the alarm box 7 is vertically set at the bottom. In this embodiment, the weighing sensor installed in the alarm box 7 adopts a high-temperature strain gauge structure, and its sensing end is connected to a detachable liquid collection container. The load cell is connected to the alarm via a high-temperature resistant cable, the outer layer of which is covered with a ceramic fiber heat insulation layer. The load cell operates as follows: when leaked liquid enters the collection container through the leakage collection hole 6, the increased weight of the container causes deformation of the strain gauge in the load cell, resulting in a corresponding change in electrical signal. This electrical signal is amplified and filtered by a signal conditioning circuit before being transmitted to the control unit of the alarm. The alarm includes a comparison circuit and an alarm output module. The comparison circuit presets a weight threshold; when the received signal exceeds this threshold, it triggers the alarm output module. The alarm output module can be configured as a buzzer or LED indicator, depending on requirements. An isolated power supply is also provided in the alarm box 7 to power the aforementioned equipment. It should be noted that the working principle of this device, which triggers the alarm via a load cell, utilizes existing, feasible technology. The system principles are not elaborated here. If necessary, a high-temperature resistant wireless transmission module can also be installed to receive the alarm signal and transmit it to the central control room.

[0039] The alarm box 7 has a power storage slot at the bottom, which is snapped into the protective cover 71. The device is powered by a dry cell battery that is easy to remove. It should be noted that the device can also be powered by a rechargeable battery. The protective cover 71 is snapped into a structure similar to an air conditioner remote control for easy disassembly and assembly, which will not be described in detail here.

[0040] An arc-shaped rubber pad 31 is provided at the intersection of the outer end of the arc-shaped sealing cover 5 and the conveying pipe 3. The length of the arc-shaped sealing cover 5 is greater than the maximum unfolded length of the bellows 4. In this embodiment, the arc-shaped rubber pad 31 improves the sealing effect, prevents the liquid overflowing from the internal bellows 4 from overflowing again, improves the weighing accuracy, and when the bellows 4 is unfolded, the arc-shaped rubber pad 31 can slide on the conveying pipe 3 to ensure the normal operation of the compensator.

[0041] The arc-shaped sealing cover 5 is symmetrically provided with snap-fit ​​plates 51 on its outer side. The snap-fit ​​plates 51 have connecting holes 52. The connecting holes 52 are connected by bolts. In this embodiment, the snap-fit ​​plates 51 are symmetrically provided with two connecting holes 52. When installing the arc-shaped sealing cover 5, the snap-fit ​​plates 51 are aligned and connected by bolts.

[0042] The intersecting surfaces of the snap-fit ​​plates 51 are provided with sealing gaskets to further improve the sealing effect.

[0043] The leakage collection hole 6 is located in the middle of the arc-shaped guide groove 61. The arc-shaped guide groove 61 is high at both ends and low in the middle. In this embodiment, in order to improve the accuracy of the weighing sensor, the arc-shaped guide groove 61 is set so that all the overflowing liquid can be sent into the leakage collection hole 6.

[0044] The end face of the feed flange 1 is evenly distributed with multiple locking holes 11 in a ring. The locking holes 11 are detachably connected to the filter ring by bolts. The filter ring includes an annular frame 12 and a circular filter sheet 13 fixed in the frame. In this embodiment, the filter sheet with a mesh diameter of 0.5-3mm is used, which effectively intercepts impurities such as welding slag and rust in the pipeline, protects the bellows 4 from wear, and the modular quick-release design greatly facilitates daily maintenance operations.

[0045] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A high-temperature resistant non-metallic compensator, characterized in that: It includes an inlet flange (1) and an outlet flange (2), with a conveying pipe (3) connected inside the inlet flange (1) and the outlet flange (2), and the conveying pipes (3) are flexibly connected by a corrugated pipe (4), with the two ends of the corrugated pipe (4) sealed and fixed to the conveying pipe (3) by connecting rings; The material conveying pipe (3) is provided with symmetrical arc-shaped sealing covers (5) on the outside. The two arc-shaped sealing covers (5) are detachably connected to form a sealed cavity for wrapping the corrugated pipe (4). The bottom arc-shaped sealing cover (5) is provided with a leakage collection hole (6), and an alarm box (7) is connected below the leakage collection hole (6). A weighing sensor is provided inside the alarm box (7), and the weighing sensor is electrically connected to the alarm. When the bellows (4) leaks, the liquid flows into the arc-shaped sealing cover (5) and enters the alarm box (7) through the leakage collection hole (6). When the weighing sensor detects that the liquid weight reaches the set threshold, it triggers the alarm to issue a warning signal.

2. The high-temperature resistant non-metallic compensator according to claim 1, characterized in that: The alarm box (7) has a power storage slot at the bottom, and the power storage slot is snapped into a protective cover (71).

3. The high-temperature resistant non-metallic compensator according to claim 1, characterized in that: An arc-shaped rubber pad (31) is provided at the intersection of the outer end of the arc-shaped sealing cover (5) and the material conveying pipe (3). The length of the arc-shaped sealing cover (5) is greater than the maximum unfolding of the corrugated pipe (4).

4. A high-temperature resistant non-metallic compensator according to claim 1, characterized in that: The arc-shaped sealing cover (5) is symmetrically provided with snap-fit ​​plates (51) on the outside. The snap-fit ​​plates (51) have connection holes (52) and the connection holes (52) are connected by bolts.

5. A high-temperature resistant non-metallic compensator according to claim 4, characterized in that: A sealing gasket is provided on the intersecting side of the snap-fit ​​plate (51).

6. A high-temperature resistant non-metallic compensator according to claim 1, characterized in that: The leakage collection hole (6) is located in the middle of the arc-shaped guide groove (61), which is high at both ends and low in the middle.

7. A high-temperature resistant non-metallic compensator according to claim 1, characterized in that: The end face of the feed flange (1) is evenly distributed with multiple locking holes (11) in an annular shape. The locking holes (11) are detachably connected to the filter ring by bolts. The filter ring includes an annular frame (12) and a circular filter disc (13) fixed in the frame.

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