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Method for sealing condition monitoring system of sealed pipeline

发布日期:2020-01-17 19:48 Document serial number: 19715751 Release date: 2020-01-17 19:48
Method for sealing condition monitoring system of sealed pipeline

The embodiment of the utility model relates to the technical field of sealing, in particular to a sealing state monitoring system for a sealed pipeline.



Background technique:

Pipes can be used to deliver clean air or liquid to safe areas, or to transport dangerous air or liquids to specific areas. In long-distance pipeline transportation, sealed connections are required between various pipelines, and how to ensure the tightness of the pipeline connection is the focus of attention at present.

However, high tightness is often positively related to high cost. For ordinary projects, it is difficult to ensure that no leaks occur at the joints of the pipeline. After the pipeline leaks, the inspection workers find that the pipeline is leaking and repair the leaking pipeline. Previously, the time interval was often long, causing a large amount of leakage of material in the pipeline, causing hidden dangers.



Technical realization elements:

In view of this, an embodiment of the present invention provides a sealing state monitoring system for a sealed pipeline, the main purpose of which is to reduce the leakage of a large amount of material in the pipeline, which causes hidden safety risks.

In order to achieve the above purpose, the embodiments of the present invention mainly provide the following technical solutions:

In one aspect, an embodiment of the present invention provides a sealed condition monitoring system for a sealed pipeline, the sealed pipeline includes: an external pipeline, a first internal pipeline, and a first end of the external pipeline and a first internal pipeline. The pipes are connected and sealed in a first region of the inner wall of the external pipe and a first region of the outer wall of the first internal pipe to form a sealed pipeline;

A first monitoring hole is provided at a first end of the external pipe, and the first monitoring hole at the first end of the external pipe penetrates a first region of the external wall of the external pipe and an inner wall of the external pipe,

A pressure regulating device connected to the first monitoring hole for regulating the first monitoring hole to a predetermined pressure, wherein the predetermined pressure is different from the pressure in the sealed pipeline;

A monitoring device connected to the first monitoring hole and configured to monitor a change in pressure or flow of the first monitoring hole; if the detected change in pressure or flow of the first monitoring hole is greater than a preset threshold, determining the Sealed pipe seal failure.

The purpose of the embodiments of the present invention and the technical problems thereof can be further achieved by using the following technical measures.

Optionally, the aforementioned sealing condition monitoring system for a sealed pipeline further includes:

The alarm device and the monitoring device are used to trigger an alarm if the detected pressure or flow changes are greater than a preset threshold.

Optionally, in the aforementioned sealed state monitoring system for a sealed pipeline, the first end of the external pipe is connected to the first internal pipe, and two sides of the monitoring hole in the first region of the internal wall of the external pipe are provided Sealing ring.

Optionally, in the aforementioned sealed state monitoring system for a sealed pipeline, the first end of the externally connected pipeline is threadedly connected to the first internally connected pipeline.

Optionally, the sealing condition monitoring system of the aforementioned sealed pipeline, wherein

The second end of the externally connected pipe is connected to a second internally connected pipe, and forms a seal in a second region of the internal wall of the externally connected pipe and a first region of the external wall of the second internally connected pipe, which is characterized in that:

A second monitoring hole is provided at a second end of the external pipe, and the second monitoring hole at the second end of the external pipe penetrates a second region of the external wall of the external pipe and an internal wall of the external pipe;

The pressure regulating device is connected to the second monitoring hole and is also used to regulate the pressure of the second monitoring hole to a predetermined pressure, wherein the predetermined pressure is different from the pressure in the sealed pipeline;

The monitoring device is connected to the second monitoring hole and is further configured to monitor a change in pressure or flow of the second monitoring hole. If the detected change in pressure or flow of the second monitoring hole is greater than a preset threshold, then It is determined that the sealing pipeline seal fails.

Optionally, in the aforementioned sealed state monitoring system for a sealed pipeline, the inside of the first monitoring hole or the second monitoring hole is opened in a circle on the inner wall of the external pipe and has a ring shape.

In another aspect, an embodiment of the present invention provides a method for monitoring a sealed state of a sealed pipeline. The sealed pipeline includes: an external pipe, a first internal pipe, and a first end of the external pipe and a first internal pipe. Connected to a pipe, and sealed in a first region of the inner wall of the outer pipe and a first region of the outer wall of the first inner pipe to form a sealed pipe;

A monitoring hole is provided at a first end of the external pipe, and the monitoring hole at the first end of the external pipe penetrates a first region of the external wall of the external pipe and an internal wall of the external pipe, and the method includes:

Adjusting the pressure of the monitoring hole to a predetermined pressure, wherein the predetermined pressure is different from the pressure in the sealed pipeline;

Monitoring the pressure or flow rate change of the monitoring hole, and if the detected pressure or flow rate change is greater than a preset threshold value, it is determined that the sealing pipeline seal has failed.

The purpose of the embodiments of the present invention and the technical problems thereof can be further achieved by using the following technical measures.

Optionally, in the foregoing method for monitoring a sealed state of a sealed pipeline, the predetermined pressure is greater than an atmospheric pressure outside the pipe wall of the sealed pipeline.

Optionally, in the foregoing method for monitoring a sealed state of a sealed pipeline, the predetermined pressure is less than the atmospheric pressure outside the pipe wall of the sealed pipeline.

Optionally, in the foregoing method for monitoring a sealed state of a sealed pipeline, an alarm device is triggered if a change in the detected pressure or flow rate is greater than a preset threshold.

By means of the above technical solution, the sealing condition monitoring system of the sealed pipeline provided by the technical solution of the present utility model has at least the following advantages:

In the technical solution provided by the embodiment of the present invention, the first end of the externally connected pipe is connected to the first internally connected pipe, and is sealed in a first area of the internal wall of the externally connected pipe and a first area of the external wall of the first internally connected pipe to form a seal. Pipeline; the first end of the external pipe is provided with a monitoring hole, and the first end of the external pipe is provided with a monitoring hole penetrating the outer wall of the external pipe and the first area of the internal wall of the external pipe. During monitoring, the monitoring hole is adjusted to a predetermined pressure, of which the predetermined The pressure is different from the pressure in the sealed pipeline, and the seal of the sealed pipeline fails. After connecting the sealed pipeline to the monitoring hole, the pressure in the sealed pipeline and the pressure in the monitoring hole will cause the pressure in the monitoring hole to occur. Change, and by monitoring the pressure or flow rate change of the monitoring hole, it can be judged that the sealing pipeline seal fails, which can reduce a large amount of leakage of the substance in the pipeline and cause hidden safety hazards.

The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the embodiments of the present utility model more clearly and can be implemented in accordance with the contents of the description, the preferred embodiments of the present utility model and the accompanying drawings are described in detail below The description is as follows.

BRIEF DESCRIPTION OF THE DRAWINGS

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the detailed description of the preferred embodiments below. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the drawings to refer to the same parts. In the drawings:

1 is a schematic structural diagram of a sealed state monitoring system of a sealed pipeline according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a sealing state monitoring system of a specific sealed pipeline according to an embodiment of the present invention; FIG.

FIG. 3 is a schematic structural diagram of a sealing state monitoring system of another specific sealed pipeline according to an embodiment of the present invention.

detailed description

In order to further explain the technical means and effects adopted by the present utility model to achieve the purpose of the predetermined utility model embodiment, the following describes the sealing state monitoring system of the sealed pipeline according to the embodiment of the present utility model with reference to the accompanying drawings and preferred embodiments. The specific implementation, structure, characteristics and effects thereof will be described in detail later. In the following description, different "one embodiment" or "an embodiment" does not necessarily mean the same embodiment. Furthermore, the particular features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

In the first aspect, FIG. 1 to FIG. 3 show an embodiment of a sealed state monitoring system for a sealed pipeline provided by the present utility model. Please refer to FIG. 1 to FIG. 3, a sealed state of the sealed pipeline according to an embodiment of the present invention Monitoring system where

The sealed pipeline includes an external pipe 10 and a first internal pipe 20. A first end of the external pipe 10 is connected to the first internal pipe 20, and is connected to the first region of the internal wall of the external pipe 10 and the first internal pipe 20. A first region of an outer wall of an inner pipe 20 is sealed to form a sealed pipeline; a first end of the outer pipe 10 is provided with a monitoring hole 11, and a first end monitoring hole 11 of the outer pipe 10 penetrates the outer pipe A first region of the outer wall of 10 and the inner wall of the external pipe 10,

A pressure regulating device is connected to the monitoring hole 11 for regulating the monitoring hole 11 to a predetermined pressure, wherein the predetermined pressure is different from the pressure in the sealed pipeline;

A monitoring device is connected to the monitoring hole 11 and is configured to monitor a change in pressure or flow rate of the monitoring hole 11. If the change in the detected pressure or flow rate is greater than a preset threshold, it is determined that the sealing pipeline seal has failed.

When the predetermined pressure is greater than the pressure in the sealed pipeline, the seal of the sealed pipeline fails, and after the sealed pipeline is communicated with the monitoring hole, the fluid (air flow or liquid flow) in the monitoring hole will flow into the sealing pipe. On the road. When the predetermined pressure is less than the pressure in the sealed pipeline, the seal of the sealed pipeline fails, and after the sealed pipeline is connected with the monitoring hole, the fluid (airflow or liquid flow) in the sealed pipeline will flow into the monitoring Inside the hole.

In the technical solution provided by the embodiment of the present invention, the first end of the externally connected pipe is connected to the first internally connected pipe, and is sealed in a first area of the internal wall of the externally connected pipe and a first area of the external wall of the first internally connected pipe to form a seal. Pipeline; the first end of the external pipe is provided with a monitoring hole, and the first end of the external pipe is provided with a monitoring hole penetrating the outer wall of the external pipe and the first area of the internal wall of the external pipe. During the monitoring, the monitoring hole is adjusted to a predetermined pressure, of which The pressure is different from the pressure in the sealed pipeline, and the seal of the sealed pipeline fails. After connecting the sealed pipeline to the monitoring hole, the pressure in the sealed pipeline and the pressure in the monitoring hole will cause the pressure in the monitoring hole to occur. Change, and by monitoring the pressure or flow rate change of the monitoring hole, it can be judged that the sealing pipeline seal fails, which can reduce a large amount of leakage of the substance in the pipeline and cause hidden safety hazards.

The number of the monitoring holes is not limited, and may be single or multiple. For example, at least two monitoring holes are provided at the first end of the external pipe in the extending direction of the external pipe. Alternatively, the monitoring holes are provided in multiples around the external pipe. Of course, in other embodiments. The inner side of the monitoring hole may be formed in a circle on the inner wall of the external pipe, and the outer side of the monitoring hole may be at least one connection opening on the outer wall of the external pipe. For example, as shown in FIG. 2, the outer side of the monitoring hole includes at least two connection ports 11 facing different directions of the external pipe. In implementation, the communication of the monitoring holes for two adjacent external pipes can be facilitated, so that Adjust the pressure of the monitoring holes of two adjacent external pipes.

In other embodiments, as shown in FIG. 1, a first region of the outer wall of the first in-line pipe is provided with an annular groove 21 around the periphery, and the annular groove is in communication with the monitoring hole.

The first end of the externally connected pipe and the first internally connected pipe may be plugged in. The shape of the externally connected pipe and the first internally connected pipe is not limited, and may be a round pipe, a square pipe, or the like. The external pipe and the first internal pipe can be glass pipes, plastic pipes, metal pipes or composite pipes. Sealing rings 22 may be provided on both sides of the monitoring hole in the first region of the inner wall of the external pipe. After the pressure of the monitoring hole is adjusted, the pressure of the monitoring hole is further guaranteed to be stable, and gas on both sides of the monitoring hole is prevented from running out.

The above-mentioned sealed state monitoring system may further include: an alarm device, the alarm device, and the monitoring device, configured to trigger an alarm if a change in detected pressure or flow is greater than a preset threshold. The alarm device may adopt an audible alarm, a light alarm, an image alarm, and the like, which are not specifically limited in the present invention.

The pressure regulating device may include a vacuum pump, and the vacuum pressure in the monitoring hole is adjusted by the vacuum pump. Alternatively, the pressure regulating device may include an air compressor, and the positive pressure in the monitoring hole is adjusted by the air compressor. Alternatively, the pressure regulating device may include a gas tank, and the gas tank may be filled with a positive pressure gas of a predetermined pressure, and the gas tank filled with the positive pressure gas is connected to the monitoring hole to adjust the pressure of the monitoring hole to a predetermined pressure. Of course, when the demand of the monitoring hole is negative pressure, the gas tank can be filled with a negative pressure gas of a predetermined pressure, and the gas tank filled with the negative pressure gas is connected to the monitoring hole to adjust the pressure of the monitoring hole to a predetermined pressure.

In order to more fully understand the implementation of the present invention, in other embodiments provided by the present invention, in addition to using a plug-in manner, the first end of the external pipe and the first internal pipe can be threadedly connected. Generally, the external pipe can be used for screwing the first internal pipe and the second internal pipe. As shown in FIG. 3, the second end of the externally connected pipe 10 is connected to the second internally connected pipe 60, and forms a seal in a second area of the internal wall of the externally connected pipe and a first area of the external wall of the second internally connected pipe. The second end of the external pipe is provided with a monitoring hole, and the second end monitoring hole of the external pipe penetrates a second region of the external wall of the external pipe and the internal wall of the external pipe. Both ends of the external pipe are provided with internal threads, so that thread connection can be achieved with the internal pipe on both sides.

In a second aspect, an embodiment of a method for monitoring a sealed state of a sealed pipeline provided by the present invention, and a method for monitoring a sealed state of a sealed pipeline according to an embodiment of the present invention, wherein the sealed pipeline includes an external pipeline, a first An inline pipe, the first end of the external pipe is connected to the first internal pipe, and is sealed in a first area of the internal wall of the external pipe and a first area of the external wall of the first internal pipe to form a seal A pipeline; a monitoring hole is provided at a first end of the external pipe, and the monitoring hole at the first end of the external pipe penetrates a first region of the external wall of the external pipe and a first region of the internal wall of the external pipe, and the method includes:

Adjusting the pressure of the monitoring hole to a predetermined pressure, wherein the predetermined pressure is different from the pressure in the sealed pipeline;

The pressure adjustment method can be performed by injecting high-pressure gas or pumping.

Monitoring the pressure or flow rate change of the monitoring hole, and if the detected pressure or flow rate change is greater than a preset threshold value, it is determined that the sealing pipeline seal has failed.

In the technical solution provided by the embodiment of the present invention, the first end of the externally connected pipe is connected to the first internally connected pipe, and is sealed in a first area of the internal wall of the externally connected pipe and a first area of the external wall of the first internally connected pipe to form a seal. Pipeline; the first end of the external pipe is provided with a monitoring hole, and the first end of the external pipe is provided with a monitoring hole penetrating the outer wall of the external pipe and the first area of the internal wall of the external pipe. During the monitoring, the monitoring hole is adjusted to a predetermined pressure, of which The pressure is different from the pressure in the sealed pipeline, and the seal of the sealed pipeline fails. After connecting the sealed pipeline to the monitoring hole, the pressure in the sealed pipeline and the pressure in the monitoring hole will cause the pressure in the monitoring hole to occur. Change, and by monitoring the pressure or flow rate change of the monitoring hole, it can be judged that the sealing pipeline seal fails, which can reduce a large amount of leakage of the substance in the pipeline and cause hidden safety hazards.

Corresponding to different application environments, the magnitude of the preset pressure can be determined according to actual needs.

For example, if the clean air transported in the sealed pipeline is toxic and harmful gas that needs to be isolated on the outside of the sealed pipeline, the predetermined pressure may be greater than the atmospheric pressure outside the wall of the sealed pipeline, then the sealed pipeline After the seal fails, after the inside and outside of the sealed pipeline are communicated, since the predetermined pressure is greater than the atmospheric pressure outside the sealed pipeline pipe wall, fluid outside the sealed pipeline can be prevented from entering the sealed pipeline.

For example, if the toxic and harmful gas is transported in the sealed pipeline, and the outside of the sealed pipeline is a region for personnel movement, the predetermined pressure may be less than the atmospheric pressure on the outside of the sealed pipeline wall, then the sealed portion of the sealed pipeline After the failure occurs, after the inside and outside of the sealed pipeline are communicated, since the predetermined pressure is smaller than the atmospheric pressure outside the sealed pipeline pipe wall, the fluid in the sealed pipeline can be prevented from entering the outside of the sealed pipeline.

In order to facilitate early warning, if the detected pressure or flow change is greater than a preset threshold, an alarm device is triggered. The alarm device may adopt an audible alarm, a light alarm, an image alarm, etc., which is not specifically limited in the present invention.

In the above embodiments, the description of each embodiment has its own emphasis. For a part that is not described in detail in one embodiment, reference may be made to related descriptions in other embodiments.

It can be understood that related features in the above-mentioned device can be referred to each other. In addition, the “first”, “second”, and the like in the above embodiments are used to distinguish the embodiments, and do not represent the advantages and disadvantages of the embodiments.

In the description provided here, numerous specific details are explained. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail so as not to obscure the understanding of the specification.

Similarly, it should be understood that, in order to streamline the present disclosure and help understand one or more of the various aspects of the utility model, in the above description of the exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single Examples, drawings, or descriptions thereof. However, this disclosed device should not be construed as reflecting the intention that the claimed invention requires more features than those explicitly recited in each claim. Rather, as reflected in the following claims, the utility model aspect lies in less than all features of the single embodiment disclosed previously. Therefore, the claims that follow the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present invention.

Those skilled in the art can understand that the components in the device in the embodiment can be adaptively changed and set in one or more devices different from the embodiment. The components in the embodiment can be combined into one component, and furthermore, they can be divided into a plurality of sub-components. Except for at least some of such features being mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstract, and drawings), and all components of any device so disclosed may be combined in any combination. Each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

In addition, those skilled in the art can understand that although some embodiments described herein include some features included in other embodiments but not other features, the combination of features of different embodiments means that the Within range and different embodiments are formed. For example, in the following claims, any one of the claimed embodiments can be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or a combination thereof.

It should be noted that the above-mentioned embodiments describe the present invention rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of parts or components not listed in a claim. The word "a" or "an" preceding a part or component does not exclude the presence of a plurality of such parts or components. The invention can be implemented by means of a device comprising several different components. In the claims listing several components, several of these components may be embodied by the same component item. The use of the words first, second, and third does not imply any order. These words can be interpreted as names.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes, and modifications made to the above embodiments in accordance with the technical essence of the present invention are all It still belongs to the scope of the technical solution of the utility model.

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