Two-way compensation system for pressure balance based on bellows compensator

Abstract

The present invention discloses a bidirectional compensation system for pressure balance based on a bellows compensator, comprising a compensation module, wherein the compensation module comprises a bellows compensator body and flanges installed at both ends of the bellows compensator body, and every two sections of the bellows compensator body are fixedly connected together by the flanges; a disconnection alarm module, wherein the disconnection alarm module comprises a control box and an alarm installed on the outer surface of the side edge of the flange, and grooves are provided at the same place on the opposite sides of the two mutually connected flanges, and magnets with different magnetic properties are respectively installed in the two grooves, and the two magnets are in contact with each other and magnetically attracted, and a pressure sensor is installed on one of the magnets, and the pressure sensor is in contact with the other magnet under normal circumstances, and the alarm is an audible and visual alarm, and a controller and a battery are installed in the control box, the pressure sensor and the controller are signal-connected, the battery is electrically connected to the controller and the alarm respectively, and the controller and the alarm are electrically connected.

Description

Technical Field

[0001] The invention relates to the technical field of bellows compensators, and in particular to a bidirectional compensation system for pressure balance based on bellows compensators. Background Art

[0002] The bellows expansion joint compensator is an expansion joint made of metal bellows. It can expand and contract along the axis and also allows a small amount of bending, thereby compensating for the displacement of the pipeline. When connecting two bellows compensators together, they are usually fixed by a flange installed at the end of the compensator.

[0003] In the existing bellows compensator, the flanges at the ends of the two bellows are generally connected by bolts. After a long time of use, a gap will appear between the two flanges, so that the material in the pipeline is easy to leak. However, the existing compensator lacks a mechanism at the connection of the two flanges that can promptly remind the staff that a gap has occurred between the two flanges, and cannot prevent the leakage of materials in advance. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a two-way compensation system for pressure balance based on a bellows compensator. By setting a disconnection alarm module, when a gap is generated between the two flanges, the two magnets will immediately separate, causing the pressure sensor to lose pressure, which sends a signal to the controller, and the controller controls the sound and light alarm to alarm to remind the staff that a leak has occurred here, so that when the device is in use, it can quickly remind personnel to repair and avoid leakage, which is more convenient and quick.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a two-way compensation system for pressure balance based on a bellows compensator, including a compensation module, the compensation module including a bellows compensator body and flanges installed at both ends of the compensator body, and every two sections of the bellows compensator body are fixedly connected together by flanges; a disconnection alarm module, the disconnection alarm module including a control box and an alarm installed on the outer surface of the side edge of the flange, and grooves are opened at the same place on the opposite sides of the two interconnected flanges, and magnets with different magnetic properties are respectively installed in the two grooves, the two magnets are in contact with each other and magnetically attracted, a pressure sensor is installed on one of the magnets, and the pressure sensor is in contact with the other magnet under normal circumstances; a diversion module, the diversion module includes two diversion tubes with a larger diameter and a smaller diameter.

[0006] As a preferred technical solution of the present invention, the alarm is an audible and visual alarm, a controller and a battery are installed in the control box, the pressure sensor is signal-connected to the controller, the battery is electrically connected to the controller and the alarm respectively, and the controller is electrically connected to the alarm.

[0007] As a preferred technical solution of the present invention, when gas is transported in the pipeline, gas sensors are installed on both sides, top and bottom of one of the two interconnected flanges, and the gas sensors are connected to the controller signal.

[0008] As a preferred technical solution of the present invention, when liquid is transported in the pipeline, liquid sensors are installed on both sides, top and bottom of one of the two interconnected flanges, and the liquid sensors are connected to the controller signal.

[0009] As a preferred technical solution of the present invention, the guide module includes two guide tubes slidably arranged inside the corrugated compensator, one end of the guide tube with a relatively larger diameter is fixed inside the corrugated compensator, and the other end is movably sleeved on the outside of the guide tube with a relatively smaller diameter, and the other end of the guide tube with a relatively smaller diameter is fixed on the inner wall of the corrugated compensator.

[0010] As a preferred technical solution of the present invention, the corrugated compensator and the two guide tubes are both made of stainless steel, and a corrosion-resistant layer is provided on the outer surface.

[0011] As a preferred technical solution of the present invention, the bidirectional compensation system further includes a sealing module, and the sealing module includes sealing rings respectively attached to one side where the two flanges are connected.

[0012] As a preferred technical solution of the present invention, the sealing ring is provided with a through hole of corresponding shape and size at the magnet. The sealing ring does not hinder the pressure sensor from contacting the magnet. It can adopt a high-pressure resistant sealing ring disclosed in Chinese patent publication number CN104121366A.

[0013] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0014] When using the corrugated compensator, a disconnection alarm module is set up, and grooves are opened at the same place on the opposite sides of the two interconnected flanges. Magnets with different magnetic properties are installed in the two grooves respectively. The two magnets are in contact with each other and magnetically attracted to each other. A pressure sensor is installed on one of the magnets, and the pressure sensor is in contact with the other magnet under normal circumstances. An alarm is also installed on one of the flanges. When a gap is generated between the two flanges, the magnets separate, causing the pressure sensor to lose pressure, which sends a signal to the controller, and the controller controls the sound and light alarm to alarm to remind the staff that a leak has occurred here, so that when the device is in use, it can quickly remind personnel to repair and avoid leaks, which is more convenient and quick. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0016] Embodiment 1

[0017] The present invention provides a two-way compensation system for pressure balance based on a bellows compensator, comprising a compensation module, wherein the compensation module comprises a bellows compensator body and flanges installed at both ends of the compensator body, and each two sections of the bellows compensator body are fixedly connected together by the flanges; a disconnection alarm module, wherein the disconnection alarm module comprises a control box and an alarm installed on the outer surface of the side edge of the flange, and grooves are provided at the same place on the opposite sides of the two mutually connected flanges, and magnets with different magnetic properties are respectively installed in the two grooves, and the two magnets are in contact with each other and magnetically attracted to each other, a pressure sensor is installed on one of the magnets, and the pressure sensor is in contact with the other magnet under normal circumstances, and the alarm is an audible and visual alarm, a controller and a battery are installed in the control box, the pressure sensor and the controller are signal-connected, the battery is electrically connected to the controller and the alarm respectively, and the controller and the alarm are electrically connected; a flow diversion module, wherein the flow diversion module comprises two flow diversion tubes with a larger diameter and a smaller diameter;

[0018] In a specific embodiment of the present invention, when the corrugated compensator is used, grooves are provided at the same place on the opposite sides of the two interconnected flanges, and magnets with different magnetic properties are respectively installed in the two grooves. The two magnets are in contact with each other and magnetically attracted to each other. A pressure sensor is installed on one of the magnets, and the pressure sensor is in contact with the other magnet under normal circumstances. At the same time, an alarm is installed on one of the flanges, and the alarm is an audible and visual alarm. A controller and a battery are installed in the control box. The pressure sensor and the controller are signal-connected, and the battery is electrically connected to the controller and the alarm respectively. The controller and the alarm are electrically connected. Under normal circumstances, the two flanges are connected together, so that the two magnets installed on the flanges are magnetically attracted together, and no gap is generated in the middle. Therefore, the pressure sensor installed on one of the magnets always feels pressure, and when a gap is generated between the two flanges, the two magnets will immediately separate, and the magnet installed with the pressure sensor will no longer be in contact with the other magnet, causing the pressure sensor to lose pressure, and send a signal to the controller, and the controller controls the audible and visual alarm to alarm to remind the staff that a leak has occurred here, so that when the device is in use, it can quickly remind personnel to repair and avoid leaks, which is more convenient and quick.

[0019] Embodiment 2

[0020] This embodiment is an improvement made on the first embodiment. When gas is transported in the pipeline, gas sensors are installed on both sides, top and bottom of one of the two flanges connected to each other, and the gas sensor is connected to the controller signal; when liquid is transported in the pipeline, liquid sensors are installed on both sides, top and bottom of one of the two flanges connected to each other, and the liquid sensor is connected to the controller signal;

[0021] In this embodiment: when the bellows compensator is used, when gas is transported in the pipeline, gas sensors are installed on both sides, top and bottom of one of the two flanges connected to each other, and the gas sensors are connected to the controller signal. The four gas sensors are respectively arranged on both sides, top and bottom of the flange, which can basically cover all directions to monitor the leakage. When a leak occurs at the connection between the two flanges, the gas sensor detects the gas leakage, and transmits the signal to the controller, which activates the sound and light alarm to alarm, so as to remind the staff that a leak occurs here;

[0022] Similarly, when liquid is transported in the pipeline, liquid sensors are installed on both sides, top and bottom of one of the two interconnected flanges, and the liquid sensors are connected to the controller signal. The four liquid sensors are respectively arranged on both sides, top and bottom of the flange, which can basically cover all directions to monitor leakage. When leakage occurs at the connection between the two flanges, the liquid sensor detects liquid leakage, and transmits the signal to the controller, which activates the sound and light alarm to alarm, so as to remind the staff that leakage has occurred here.

[0023] Embodiment 3

[0024] This embodiment is an improvement made on the first embodiment. The flow guide module includes two flow guide cylinders slidably arranged inside the corrugated compensator, one end of the flow guide cylinder with a relatively larger diameter is fixed inside the corrugated compensator, and the other end is movably sleeved outside the flow guide cylinder with a relatively smaller diameter, and the other end of the flow guide cylinder with a relatively smaller diameter is fixed on the inner wall of the corrugated compensator;

[0025] In this embodiment: when the corrugated compensator is used, two guide tubes with different diameters are slidably installed inside the corrugated compensator, and one end of the guide tube with a relatively larger diameter is fixed inside the corrugated compensator, and the other end is movably sleeved on the outside of the guide tube with a relatively smaller diameter, and the other end of the guide tube with a relatively smaller diameter is fixed on the inner wall of the corrugated compensator, so that the corrugated compensator has bidirectional retractability, and both ends can perform telescopic movements. When the corrugated compensator is working, both ends can compensate at the same time, playing a role of bidirectional compensation, and its compensation amount is larger than that of the unidirectional corrugated compensator.

[0026] Embodiment 4

[0027] This embodiment is an improvement made on the embodiment 3, the corrugated compensator and the two guide tubes are made of stainless steel, and a corrosion-resistant layer is provided on the outer surface;

[0028] In the present embodiment: when the corrugated compensator is used, the corrugated compensator and the two guide tubes are made of stainless steel, and a corrosion-resistant layer is arranged on the outer surface. Stainless steel has good corrosion resistance and heat resistance. Its chemical corrosion resistance and electrochemical corrosion resistance are the best among steel materials, second only to titanium alloy. At the same time, stainless steel is not only resistant to high temperature but also to low temperature and even ultra-low temperature, and the surface will not be oxidized to cause rust. By arranging a corrosion-resistant layer on the outer surfaces of the corrugated compensator and the two guide tubes, the corrosion resistance of the corrugated compensator and the two guide tubes can be further enhanced, making the device strong and durable, with a good service life.

[0029] Embodiment 5

[0030] This embodiment is an improvement made on the first embodiment. The bidirectional compensation system further includes a sealing module. The sealing module includes sealing rings respectively attached to the sides where the two flanges are connected. The sealing rings are provided with through holes of corresponding shapes and sizes at the magnets. The sealing rings do not prevent the pressure sensor from contacting the magnets. The sealing rings may adopt a high-pressure resistant sealing ring disclosed in the Chinese patent publication number CN104121366A.

[0031] In this embodiment: through the setting of the sealing module, a layer of sealing ring is respectively attached to one side of the two flanges connected together. When the corrugated compensator is used, the sealing ring can improve the sealing between the two flanges connected together to prevent leakage of substances in the pipeline. A high-pressure resistant sealing ring disclosed in the Chinese patent with publication number CN104121366A is adopted, which has good sealing effect and can prevent leakage of substances in the pipeline to a great extent.

[0032] Working principle: When the bellows compensator is used, two guide cylinders with different diameters are slidably installed inside the bellows compensator, and one end of the guide cylinder with a relatively larger diameter is fixed inside the bellows compensator, and the other end is movably sleeved outside the guide cylinder with a relatively smaller diameter, while the other end of the guide cylinder with a relatively smaller diameter is fixed on the inner wall of the bellows compensator, so that the bellows compensator has bidirectional telescopic properties, and both ends can perform telescopic movements. At the same time, the sealing ring installed on the flange can improve the sealing between the two connected flanges to prevent leakage of substances in the pipeline; and on the opposite sides of the two connected flanges, a sealing ring is opened at the same place. There are grooves, and magnets with different magnetic properties are installed in the two grooves respectively. The two magnets are in contact with each other and magnetically attracted to each other. A pressure sensor is installed on one of the magnets, and the pressure sensor is in contact with the other magnet under normal circumstances. At the same time, an alarm is installed on one of the flanges, and the alarm is an audible and visual alarm. A controller and a battery are installed in the control box. The pressure sensor and the controller are signal connected, and the battery is electrically connected to the controller and the alarm respectively. The controller and the alarm are electrically connected. Under normal circumstances, the two flanges are connected together, so that the two magnets installed on the flanges are magnetically attracted together, and no gap is generated in the middle, so its The pressure sensor installed on one of the magnets always feels the pressure, and when a gap is generated between the two flanges, the two magnets will immediately separate, and the magnet installed with the pressure sensor will no longer contact the other magnet, causing the pressure sensor to lose pressure, and send a signal to the controller, and the controller controls the sound and light alarm to alarm, so as to remind the staff that a leak has occurred here; at the same time, when gas is transported in the pipeline, gas sensors are installed on both sides, top and bottom of one of the two flanges connected to each other, and the gas sensor is connected to the controller signal. The four gas sensors are respectively arranged on both sides, top and bottom of the flanges, which can basically summarize all directions, so as to monitor the leakage. When a leak occurs at the connection of the two flanges, the gas sensor detects the gas leakage, and transmits the signal to the controller, and the controller activates the sound and light alarm to alarm, so as to remind the staff that a leak has occurred here; similarly, when liquid is transported in the pipeline, liquid sensors are installed on both sides, top and bottom of one of the two flanges connected to each other, and when a leak occurs at the connection of the two flanges, the liquid sensor detects the liquid leakage, and transmits the signal to the controller, and the controller activates the sound and light alarm to alarm, so as to remind the staff that a leak has occurred here.

[0033] Although embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A two-way compensation system for pressure balance based on a bellows compensator, characterized by: include: A compensation module, the compensation module comprising a corrugated compensator body and flanges installed at both ends of the compensator body, and every two sections of the corrugated compensator body are fixedly connected together by the flanges; A disconnection alarm module, the disconnection alarm module includes a control box and an alarm installed on the outer surface of the side of the flange, and grooves are opened at the same place on the opposite sides of the two flanges connected to each other, and magnets with different magnetic properties are respectively installed in the two grooves, and the two magnets are in contact with each other and magnetically attracted to each other, and a pressure sensor is installed on one of the magnets, and the pressure sensor is in contact with the other magnet under normal circumstances; A flow guide module, the flow guide module comprising two flow guide cylinders with a larger diameter and a smaller diameter; The alarm is an audible and visual alarm, a controller and a battery are installed in the control box, the pressure sensor is signal-connected to the controller, the battery is electrically connected to the controller and the alarm respectively, and the controller is electrically connected to the alarm; When gas is transported in the pipeline, gas sensors are installed on both sides, the top and the bottom of one of the two flanges connected to each other, and the gas sensor is connected to the controller signal; The flow guide module includes two flow guide tubes slidably arranged inside the corrugated compensator, one end of the flow guide tube with a relatively larger diameter is fixed inside the corrugated compensator, and the other end is movably sleeved outside the flow guide tube with a relatively smaller diameter, and the other end of the flow guide tube with a relatively smaller diameter is fixed on the inner wall of the corrugated compensator.

2. The bidirectional compensation system for pressure balance based on the bellows compensator according to claim 1 is characterized in that: The corrugated compensator and the two guide tubes are both made of stainless steel, and a corrosion-resistant layer is provided on the outer surface.

3. The bidirectional compensation system for pressure balance based on the bellows compensator according to claim 1 is characterized in that: The bidirectional compensation system further comprises a sealing module, wherein the sealing module comprises sealing rings respectively attached to one side where two flanges are connected.

4. The bidirectional compensation system for pressure balance based on the bellows compensator according to claim 3 is characterized in that: The sealing ring is provided with a through hole having a shape and a size corresponding to that of the magnet, and the sealing ring does not prevent the pressure sensor from contacting the magnet.