CN111947035A - Method and system for monitoring sealing state of sealed pipeline - Google Patents
Method and system for monitoring sealing state of sealed pipeline Download PDFInfo
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- CN111947035A CN111947035A CN201910403239.6A CN201910403239A CN111947035A CN 111947035 A CN111947035 A CN 111947035A CN 201910403239 A CN201910403239 A CN 201910403239A CN 111947035 A CN111947035 A CN 111947035A
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- pipeline
- pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
Abstract
The embodiment of the invention relates to a method and a system for monitoring the sealing state of a sealed pipeline, relates to the technical field of sealing, and mainly aims to reduce potential safety hazards caused by the fact that a large amount of substances in the pipeline leak out. The sealed pipeline includes: the first end of the external pipeline is connected with the first internal pipeline, and the first area of the inner wall of the external pipeline and the first area of the outer wall of the first internal pipeline are sealed to form a sealed pipeline; the first end of the external pipeline is provided with a monitoring hole, the monitoring hole of the first end of the external pipeline penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline, and the pressure regulating device is connected with the monitoring hole and used for regulating the pressure of the monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline; and the monitoring device is connected with the monitoring hole and used for monitoring the change of the pressure or the flow of the monitoring hole, and if the change of the detected pressure or flow is greater than a preset threshold value, the sealing failure of the sealing pipeline is judged, so that the potential safety hazard can be reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of sealing, in particular to a method and a system for monitoring the sealing state of a sealed pipeline.
Background
The conduit may be used to deliver a clean gas stream, liquid to a safe area, or to carry a hazardous gas stream, liquid to a specific area. In long-distance pipeline transportation, all pipelines need to be connected in a sealing mode, and the key point of attention at present is how to guarantee the sealing performance of the pipeline connecting position.
However, high leakproofness often positively correlates with high cost, and to the condition that can not appear the pipeline junction leakage in ordinary engineering, after the pipeline leaks, the workman patrols and examines before discovering that the pipeline reveals and maintaining the pipeline that reveals, often the time interval is longer, causes the material in the pipeline to leak in a large number, causes the potential safety hazard.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a system for monitoring a sealing state of a sealed pipeline, which mainly aim to reduce a potential safety hazard caused by a large amount of substances in the pipeline leaking out.
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 sealing state monitoring system for a sealed pipeline, including: the pipeline comprises an external pipeline and a first internal connecting pipeline, wherein a first end of the external pipeline is connected with the first internal connecting pipeline and sealed in a first area of the inner wall of the external pipeline and a first area of the outer wall of the first internal connecting pipeline to form a sealed pipeline;
the first end of the external pipeline is provided with a first monitoring hole which penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline,
the pressure regulating device is connected with the first monitoring hole and used for regulating the pressure of the first monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
and the monitoring device is connected with the first monitoring hole and used for monitoring the change of the pressure or the flow of the first monitoring hole, and if the detected change of the pressure or the flow of the first monitoring hole is larger than a preset threshold value, the sealing failure of the sealing pipeline is judged.
The purpose of the embodiments of the present invention and the technical problems solved thereby can be further realized by the following technical measures.
Optionally, the system for monitoring the sealing state of the sealed pipeline further includes:
and the alarm device and the detection device are used for triggering alarm if the change of the detected pressure or flow is larger than a preset threshold value.
Optionally, in the sealing state monitoring system for the sealed pipeline, the first end of the external pipeline is inserted into the first internal connecting pipeline, and sealing rings are arranged on two sides of the monitoring hole in the first region of the inner wall of the external pipeline.
Optionally, in the system for monitoring the sealing state of the sealed pipeline, the first end of the external pipeline is in threaded connection with the first internal pipeline.
Optionally, in the system for monitoring the sealing state of the sealed pipeline, the second end of the external pipeline is connected to the second internal pipeline, and a seal is formed between the second area of the inner wall of the external pipeline and the first area of the outer wall of the second internal pipeline, which is characterized in that,
a second monitoring hole is formed in the second end of the external pipeline, and the second monitoring hole in the second end of the external pipeline penetrates through the outer wall of the external pipeline and a second area of the inner wall of the external pipeline;
the pressure regulating device is connected with the second monitoring hole and is also used for regulating the pressure of the second monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
the monitoring device is connected with the second monitoring hole and is also used for monitoring the change of the pressure or the flow of the second monitoring hole, and if the detected change of the pressure or the flow of the second monitoring hole is larger than a preset threshold value, the sealing failure of the sealing pipeline is judged
Optionally, in the sealing state monitoring system for a sealed pipeline, the inner side of the first monitoring hole or the inner side of the second monitoring hole is arranged around the inner wall of the external pipeline and is annular.
In another aspect, an embodiment of the present invention provides a method for monitoring a sealing state of a sealed pipeline, where the sealed pipeline includes: the pipeline comprises an external pipeline and a first internal connecting pipeline, wherein a first end of the external pipeline is connected with the first internal connecting pipeline and sealed in a first area of the inner wall of the external pipeline and a first area of the outer wall of the first internal connecting pipeline to form a sealed pipeline;
the first end of the external pipeline is provided with a monitoring hole, the first end monitoring hole of the external pipeline penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline, and the method comprises the following steps:
regulating the pressure of the monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
and monitoring the change of the pressure or the flow of the monitoring hole, and if the detected change of the pressure or the flow is larger than a preset threshold value, judging that the sealing of the sealing pipeline is failed.
The purpose of the embodiments of the present invention and the technical problems solved thereby can be further realized by the following technical measures.
Optionally, in the method for monitoring the sealing state of the sealed pipeline, the predetermined pressure is greater than the atmospheric pressure outside the pipe wall of the sealed pipeline.
Optionally, in the method for monitoring the sealing state of the sealed pipeline, the predetermined pressure is lower than an atmospheric pressure outside a pipe wall of the sealed pipeline.
Optionally, in the method for monitoring the sealing state of the sealed pipeline, if the detected pressure or flow change is greater than a preset threshold, the alarm device is triggered.
In another aspect, an embodiment of the present invention provides a connection method of the sealing state monitoring system for a sealed pipeline, including:
connecting a first end of an external pipeline with a first internal pipeline, wherein a first monitoring hole at the first end of the external pipeline penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline, so that the first area of the inner wall of the external pipeline and the first area of the outer wall of the first internal pipeline are sealed to form a sealed pipeline;
the pressure regulating device is used for regulating the pressure of the first monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline.
By the technical scheme, the method and the system for monitoring the sealing state of the sealed pipeline, provided by the technical scheme of the invention, have the following advantages at least:
in the technical scheme provided by the embodiment of the invention, the first end of the external pipeline is connected with the first internal pipeline, and the first area of the inner wall of the external pipeline and the first area of the outer wall of the first internal pipeline are sealed to form a sealed pipeline; the first end of external pipeline is provided with the monitoring hole, and the first end monitoring hole of external pipeline link up the outer wall of external pipeline and the first region of external pipeline inner wall, in the monitoring, to monitoring hole pressure regulating to predetermined pressure, wherein predetermined pressure is different with the pressure in the sealed pipeline, and sealed pipeline's sealed department takes place to become invalid, makes after sealed pipeline and monitoring hole intercommunication, because the pressure in the sealed pipeline is different with the pressure in monitoring hole, can lead to monitoring downthehole pressure to change, through the monitoring the change of the pressure or the flow in monitoring hole, then can judge sealed pipeline seals up inefficacy, and the material in the reducible pipeline leaks in a large number, the potential safety hazard that causes.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the embodiments of the present invention more clear and clear, and to implement the technical solutions according to the contents of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a sealing state monitoring system for a sealed pipeline according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sealing state monitoring system for a specific sealed pipeline provided by an embodiment of the invention;
fig. 3 is a schematic structural diagram of another specific sealing state monitoring system for a sealed pipeline according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the predetermined embodiments of the present invention, the following detailed description will be made on the method and system for monitoring the sealing state of the sealed pipeline according to the embodiments of the present invention, and the detailed implementation, structure, features and effects thereof, with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In a first aspect, fig. 1 to 3 illustrate an embodiment of a sealing state monitoring system for a sealed pipeline according to the present invention, and referring to fig. 1 to 3, an embodiment of the sealing state monitoring system for a sealed pipeline according to the present invention is provided, wherein
The sealed pipeline includes: the pipeline comprises an external pipeline 10 and a first internal pipeline 20, wherein a first end of the external pipeline 10 is connected with the first internal pipeline 20 and is sealed in a first area of the inner wall of the external pipeline 10 and a first area of the outer wall of the first internal pipeline 20 to form a sealed pipeline; the first end of the external pipeline 10 is provided with a monitoring hole 11, the first end monitoring hole 11 of the external pipeline 10 penetrates through the outer wall of the external pipeline 10 and a first area of the inner wall of the external pipeline 10,
the pressure regulating device is connected with the monitoring hole 11 and is used for regulating the pressure of the monitoring hole 11 to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
the monitoring device is connected with the monitoring hole 11 and used for monitoring the change of the pressure or the flow of the monitoring hole 11, and if the change of the detected pressure or flow is larger than a preset threshold value, the sealing failure of the sealing pipeline is judged.
When the preset pressure is larger than the pressure in the sealed pipeline, the sealing position 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 flows into the sealed pipeline. When the preset pressure is smaller than the pressure in the sealed pipeline, the sealing position 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 sealed pipeline flows into the monitoring hole.
In the technical scheme provided by the embodiment of the invention, the first end of the external pipeline is connected with the first internal pipeline, and the first area of the inner wall of the external pipeline and the first area of the outer wall of the first internal pipeline are sealed to form a sealed pipeline; the first end of external pipeline is provided with the monitoring hole, and the first end monitoring hole of external pipeline link up the outer wall of external pipeline and the first region of external pipeline inner wall, in the monitoring, to monitoring hole pressure regulating to predetermined pressure, wherein predetermined pressure is different with the pressure in the sealed pipeline, and sealed pipeline's sealed department takes place to become invalid, makes after sealed pipeline and monitoring hole intercommunication, because the pressure in the sealed pipeline is different with the pressure in monitoring hole, can lead to monitoring downthehole pressure to change, through the monitoring the change of the pressure or the flow in monitoring hole, then can judge sealed pipeline seals up inefficacy, and the material in the reducible pipeline leaks in a large number, the potential safety hazard that causes.
The number of monitoring holes is not limited, and can be single or multiple, for example, in the extending direction of the external pipeline, the first end of the external pipeline is provided with at least two monitoring holes. Or the monitoring holes are arranged in a plurality of external pipelines in a circle. Of course, in other embodiments. The monitoring hole inboard can be opened and locate a week of external pipeline inner wall is the annular, the monitoring hole outside can be for offering in at least one connector of a week of external pipeline outer wall. For example, as shown in fig. 2, the monitoring hole outside includes at least two connectors 11 facing to different directions of the external pipes, and in implementation, the two adjacent external pipes can be conveniently communicated with each other, so that the monitoring holes of the two adjacent external pipes can be regulated at one time.
In other embodiments, as shown in fig. 1, an annular groove 21 is formed around the first region of the outer wall of the first inscribed pipe, and the annular groove is communicated with the monitoring hole.
The first end of external pipeline and first inscription pipeline can adopt the grafting, and the shape of external pipeline and first inscription pipeline is unlimited, can be pipe, square pipe etc.. The external connecting pipeline and the first internal connecting pipeline can adopt glass pipes, plastic pipes, metal pipes or composite material pipes and the like. Sealing rings 22 can be arranged on two sides of the monitoring hole in the first area of the inner wall of the external pipeline. After the pressure of the monitoring hole is regulated, the pressure stability of the monitoring hole is further guaranteed, and air leakage on two sides of the monitoring hole is prevented.
The sealing state monitoring system described above may further include: and the alarm device, the alarm device and the detection device are used for triggering alarm if the change of the detected pressure or flow is larger than a preset threshold value. The alarm device may be an audible alarm, a light alarm, an image alarm, etc., and the present invention is not particularly limited.
The pressure regulating device can comprise a vacuum pump, and the negative pressure in the monitoring hole can be regulated through the vacuum pump. Or, the pressure regulating device can include an air compressor, and the regulation of the positive pressure in the monitoring hole is realized through the air compressor. Or, the pressure regulating device can comprise a gas tank, positive pressure gas with preset pressure can be filled in the gas tank, and the gas tank filled with the positive pressure gas is connected to the monitoring hole, so that the monitoring hole is regulated to the preset pressure. Of course, when the monitoring hole is required to be at negative pressure, negative pressure gas with preset pressure can be filled in the gas tank, and the gas tank filled with the negative pressure gas is connected to the monitoring hole, so that the pressure of the monitoring hole is regulated to be at the preset pressure.
In order to more fully understand the implementation of the present invention, the present invention provides other embodiments, besides the manner of plugging, the first end of the external pipe and the first internal pipe can be screwed together. Typically, the outer conduit may be adapted to threadably connect the first inner conduit to the second inner conduit. As shown in fig. 3, the second end of the external pipe 10 is connected to the second internal connecting pipe 60, the second region of the internal wall of the external pipe and the first region of the external wall of the second internal connecting pipe form a seal, the second end of the external pipe is provided with a monitoring hole, and the monitoring hole of the second end of the external pipe penetrates through the external wall of the external pipe and the second region of the internal wall of the external pipe. The two ends of the external pipeline are provided with internal threads, so that the external pipeline can be in threaded connection with the internal pipelines on the two sides.
In a second aspect, an embodiment of the present invention provides a method for monitoring a sealing state of a sealed pipeline, where the sealed pipeline includes: the pipeline comprises an external pipeline and a first internal connecting pipeline, wherein a first end of the external pipeline is connected with the first internal connecting pipeline and sealed in a first area of the inner wall of the external pipeline and a first area of the outer wall of the first internal connecting pipeline to form a sealed pipeline; the first end of the external pipeline is provided with a monitoring hole, the first end monitoring hole of the external pipeline penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline, and the method comprises the following steps:
regulating the pressure of the monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
the pressure regulating mode can be high-pressure gas injection or air extraction and other operations.
And monitoring the change of the pressure or the flow of the monitoring hole, and if the detected change of the pressure or the flow is larger than a preset threshold value, judging that the sealing of the sealing pipeline is failed.
In the technical scheme provided by the embodiment of the invention, the first end of the external pipeline is connected with the first internal pipeline, and the first area of the inner wall of the external pipeline and the first area of the outer wall of the first internal pipeline are sealed to form a sealed pipeline; the first end of external pipeline is provided with the monitoring hole, and the first end monitoring hole of external pipeline link up the outer wall of external pipeline and the first region of external pipeline inner wall, in the monitoring, to monitoring hole pressure regulating to predetermined pressure, wherein predetermined pressure is different with the pressure in the sealed pipeline, and sealed pipeline's sealed department takes place to become invalid, makes after sealed pipeline and monitoring hole intercommunication, because the pressure in the sealed pipeline is different with the pressure in monitoring hole, can lead to monitoring downthehole pressure to change, through the monitoring the change of the pressure or the flow in monitoring hole, then can judge sealed pipeline seals up inefficacy, and the material in the reducible pipeline leaks in a large number, the potential safety hazard that causes.
The preset pressure can be determined according to actual requirements in different application environments.
In a third aspect, an embodiment of the present invention provides a connection method of the sealing state monitoring system for a sealed pipeline, including:
connecting a first end of an external pipeline with a first internal pipeline, wherein a first monitoring hole at the first end of the external pipeline penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline, so that the first area of the inner wall of the external pipeline and the first area of the outer wall of the first internal pipeline are sealed to form a sealed pipeline;
the pressure regulating device is used for regulating the pressure of the first monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline. The first end of the external pipeline and the first internal pipeline can be connected in an inserting mode or in a threaded connection mode.
In the embodiment of the invention, the sealed pipeline is formed by connecting the inner pipe and the outer pipe in a pipeline connecting mode, so that the process is simple. Wherein the content of the first and second substances,
for example, if the sealed pipeline carries clean air, the outside of the sealed pipeline is toxic and harmful gas to be isolated, and the predetermined pressure may be greater than the atmospheric pressure outside the pipe wall of the sealed pipeline, then the sealed part of the sealed pipeline fails, and after the sealed pipeline is communicated inside and outside, the fluid outside the sealed pipeline may be prevented from entering the sealed pipeline because the predetermined pressure is greater than the atmospheric pressure outside the pipe wall of the sealed pipeline.
For example, if the gas transported in the sealed pipeline is toxic and harmful gas, the outside of the sealed pipeline is a personnel activity area, and the predetermined pressure can be smaller than the atmospheric pressure outside the pipe wall of the sealed pipeline, then the sealed part of the sealed pipeline fails, and after the sealed pipeline is communicated with the inside and the outside, the fluid in the sealed pipeline can be prevented from entering the outside of the sealed pipeline because the predetermined pressure is smaller than the atmospheric pressure outside the pipe wall of the sealed pipeline.
For the convenience of early warning, if the detected pressure or flow change is greater than a preset threshold, the alarm device is triggered, and the alarm device may adopt a sound alarm, a light alarm, an image alarm, and the like, which is not specifically limited in the present invention. .
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to 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 elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The invention may be implemented by means of an apparatus comprising several distinct elements. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. A sealing state monitoring system of a sealed pipeline, characterized in that the sealed pipeline includes: the pipeline comprises an external pipeline and a first internal connecting pipeline, wherein a first end of the external pipeline is connected with the first internal connecting pipeline and sealed in a first area of the inner wall of the external pipeline and a first area of the outer wall of the first internal connecting pipeline to form a sealed pipeline;
the first end of the external pipeline is provided with a first monitoring hole which penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline,
the pressure regulating device is connected with the first monitoring hole and used for regulating the pressure of the first monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
and the monitoring device is connected with the first monitoring hole and used for monitoring the change of the pressure or the flow of the first monitoring hole, and if the detected change of the pressure or the flow of the first monitoring hole is larger than a preset threshold value, the sealing failure of the sealing pipeline is judged.
2. The seal condition monitoring system according to claim 1, further comprising:
and the alarm device and the detection device are used for triggering alarm if the change of the detected pressure or flow is larger than a preset threshold value.
3. The sealing state monitoring system according to claim 1, wherein the first end of the external pipeline is inserted into the first internal pipeline, and sealing rings are arranged on two sides of the monitoring hole in the first area of the inner wall of the external pipeline.
4. The seal condition monitoring system of claim 1, wherein the first end of the outer conduit and the first inner conduit are threadably connected.
5. The seal condition monitoring system according to claim 1, wherein the second end of the outer conduit is connected to a second inner conduit and forms a seal between a second region of an inner wall of the outer conduit and a first region of an outer wall of the second inner conduit,
a second monitoring hole is formed in the second end of the external pipeline, and the second monitoring hole in the second end of the external pipeline penetrates through the outer wall of the external pipeline and a second area of the inner wall of the external pipeline;
the pressure regulating device is connected with the second monitoring hole and is also used for regulating the pressure of the second monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
the monitoring device is connected with the second monitoring hole and is also used for monitoring the change of the pressure or the flow of the second monitoring hole, and if the detected change of the pressure or the flow of the second monitoring hole is larger than a preset threshold value, the sealing failure of the sealing pipeline is judged.
6. The seal condition monitoring system according to any one of claims 1 to 5,
the first monitoring hole or the second monitoring hole is arranged on the inner side of the external pipeline in a circle in an annular shape.
7. A method of monitoring a sealing state of a sealed pipeline, the sealed pipeline comprising: the pipeline comprises an external pipeline and a first internal connecting pipeline, wherein a first end of the external pipeline is connected with the first internal connecting pipeline and sealed in a first area of the inner wall of the external pipeline and a first area of the outer wall of the first internal connecting pipeline to form a sealed pipeline;
the first end of the external pipeline is provided with a monitoring hole, the first end monitoring hole of the external pipeline penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline, and the method comprises the following steps:
regulating the pressure of the monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline;
and monitoring the change of the pressure or the flow of the monitoring hole, and if the detected change of the pressure or the flow is larger than a preset threshold value, judging that the sealing of the sealing pipeline is failed.
8. The leak monitoring method according to claim 7,
the preset pressure is greater than the atmospheric pressure outside the pipe wall of the sealed pipeline.
9. The leak monitoring method according to claim 7,
the predetermined pressure is less than the atmospheric pressure outside the pipe wall of the sealed pipeline.
10. A method of connecting a seal state monitoring system for a sealed pipeline according to any one of claims 1 to 6, comprising:
connecting a first end of an external pipeline with a first internal pipeline, wherein a first monitoring hole at the first end of the external pipeline penetrates through the outer wall of the external pipeline and a first area of the inner wall of the external pipeline, so that the first area of the inner wall of the external pipeline and the first area of the outer wall of the first internal pipeline are sealed to form a sealed pipeline;
the pressure regulating device is used for regulating the pressure of the first monitoring hole to a preset pressure, wherein the preset pressure is different from the pressure in the sealed pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910403239.6A CN111947035A (en) | 2019-05-15 | 2019-05-15 | Method and system for monitoring sealing state of sealed pipeline |
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| CN201910403239.6A CN111947035A (en) | 2019-05-15 | 2019-05-15 | Method and system for monitoring sealing state of sealed pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799349A (en) * | 2021-10-21 | 2021-12-17 | 昆山市嘉华精密模具有限公司 | Leakage early warning type cooling system for injection mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799349A (en) * | 2021-10-21 | 2021-12-17 | 昆山市嘉华精密模具有限公司 | Leakage early warning type cooling system for injection mold |
| CN113799349B (en) * | 2021-10-21 | 2023-11-17 | 昆山市嘉华精密模具有限公司 | Cooling system for leakage early warning type injection mold |
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