JP2018091795A5 - - Google Patents
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- JP2018091795A5 JP2018091795A5 JP2016237210A JP2016237210A JP2018091795A5 JP 2018091795 A5 JP2018091795 A5 JP 2018091795A5 JP 2016237210 A JP2016237210 A JP 2016237210A JP 2016237210 A JP2016237210 A JP 2016237210A JP 2018091795 A5 JP2018091795 A5 JP 2018091795A5
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- piping structure
- conductive film
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- outer peripheral
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- 239000012530 fluid Substances 0.000 claims description 31
- 230000000875 corresponding Effects 0.000 claims description 15
- 230000002093 peripheral Effects 0.000 claims 13
- 238000010276 construction Methods 0.000 claims 7
- 238000001514 detection method Methods 0.000 claims 6
- 238000005259 measurement Methods 0.000 claims 2
- 239000003507 refrigerant Substances 0.000 claims 2
- 230000001809 detectable Effects 0.000 claims 1
Description
本発明は、内部に流体が存在する配管構造からの流体の漏洩を検知する方法であって、配管構造における所定の区間に亘り、配管構造とは絶縁されている導電性フィルムにより配管構造の外周部が予め覆われており、区間の一端および他端に相当する導電性フィルムの両端部の間の電気抵抗を監視するステップと、導電性フィルムの変形あるいは破断に起因して変化した電気抵抗が、所定の基準値から逸脱していることに基づいて区間における流体漏洩を検知するステップと、を含むことを特徴とする。 The present invention is a method for detecting leakage of a fluid from a piping structure in which fluid is present, and the outer periphery of the piping structure is insulated by a conductive film insulated from the piping structure over a predetermined section in the piping structure. part is covered in advance, the steps of monitoring the electrical resistance between the both end portions of the conductive film corresponding to one end and the other end of the segment, the electrical resistance changes due to the deformation or breakage of the conductive film And detecting a fluid leakage in the section based on deviating from a predetermined reference value.
また、本発明は、内部に流体が存在する配管構造からの流体の漏洩を検知する方法であって、配管構造における所定の区間に亘り、配管構造とは絶縁されている導電性フィルムにより配管構造の外周部が予め覆われ、区間の一端に相当する導電性フィルムの一端部が配管構造に接続されており、区間の他方に相当する導電性フィルムの他端部が、一定の電気抵抗値を有する一定抵抗に直列に接続されることで、配管構造、導電性フィルム、および一定抵抗を含む電気回路が形成されており、一定抵抗による電圧降下を監視するステップと、導電性フィルムの変形あるいは破断に起因して変化した電圧降下に相当する電位差が、所定の基準値から逸脱していることに基づいて区間における流体漏洩を検知するステップと、を含むことを特徴とする。 The present invention also relates to a method for detecting leakage of fluid from a piping structure in which fluid is present, and the piping structure is formed by a conductive film that is insulated from the piping structure over a predetermined section of the piping structure. The conductive film corresponding to one end of the section is connected to the piping structure, and the other end of the conductive film corresponding to the other end of the section has a certain electric resistance value. An electric circuit including a piping structure, a conductive film, and a constant resistance is formed by being connected in series to a certain resistance, and a step of monitoring a voltage drop due to the constant resistance and a deformation or breakage of the conductive film Detecting a fluid leakage in the section based on the fact that the potential difference corresponding to the voltage drop changed due to the deviation from a predetermined reference value is included. .
Claims (15)
前記配管構造における所定の区間に亘り、前記配管構造とは絶縁されている導電性フィルムにより前記配管構造の外周部が予め覆われており、
前記区間の一端および他端に相当する前記導電性フィルムの両端部の間の電気抵抗を監視するステップと、
前記導電性フィルムの変形あるいは破断に起因して変化した前記電気抵抗が、所定の基準値から逸脱していることに基づいて前記区間における流体漏洩を検知するステップと、を含む、
ことを特徴とする流体漏洩検知方法。 A method for detecting leakage of fluid from a piping structure in which fluid is present,
Over the predetermined section in the piping structure, the outer peripheral portion of the piping structure is covered in advance by a conductive film insulated from the piping structure,
A step of monitoring the electrical resistance between the both end portions of the conductive film corresponding to one end and the other end of the section,
Detecting fluid leakage in the section based on the electrical resistance changed due to deformation or breakage of the conductive film deviating from a predetermined reference value.
A fluid leakage detection method characterized by the above.
前記配管構造における所定の区間に亘り、前記配管構造とは絶縁されている導電性フィルムにより前記配管構造の外周部が予め覆われ、前記区間の一端に相当する前記導電性フィルムの一端部が前記配管構造に接続されており、
前記区間の他方に相当する前記導電性フィルムの他端部が、一定の電気抵抗値を有する一定抵抗に直列に接続されることで、前記配管構造、前記導電性フィルム、および前記一定抵抗を含む電気回路が形成されており、
前記一定抵抗による電圧降下を監視するステップと、
前記導電性フィルムの変形あるいは破断に起因して変化した前記電圧降下に相当する電位差が、所定の基準値から逸脱していることに基づいて前記区間における流体漏洩を検知するステップと、を含む、
ことを特徴とする流体漏洩検知方法。 A method for detecting leakage of fluid from a piping structure in which fluid is present,
An outer peripheral portion of the piping structure is covered in advance by a conductive film insulated from the piping structure over a predetermined section in the piping structure, and one end portion of the conductive film corresponding to one end of the section is Connected to the piping structure,
The other end portion of the conductive film corresponding to the other of the sections is connected in series to a constant resistance having a constant electric resistance value, thereby including the piping structure, the conductive film, and the constant resistance. An electrical circuit is formed,
Monitoring a voltage drop due to the constant resistance;
Detecting a fluid leakage in the section based on a potential difference corresponding to the voltage drop changed due to deformation or breakage of the conductive film deviating from a predetermined reference value.
A fluid leakage detection method characterized by the above.
前記複数の区間のそれぞれに亘り、前記配管構造の前記外周部が前記導電性フィルムにより覆われており、
前記区間毎に、流体漏洩を検知する、
請求項１または２に記載の流体漏洩検知方法。 A plurality of the sections are set in the piping structure,
Over each of the plurality of sections, the outer peripheral portion of the piping structure is covered with the conductive film,
Detecting fluid leakage for each section;
The fluid leakage detection method according to claim 1 or 2.
前記外周部と前記導電性フィルムとの間に介在する非導電性フィルムにより絶縁されている、
請求項１から３のいずれか一項に記載の流体漏洩検知方法。 The outer peripheral portion of the piping structure and the conductive film are
Insulated by a non-conductive film interposed between the outer peripheral portion and the conductive film,
The fluid leakage detection method according to any one of claims 1 to 3.
請求項１から４のいずれか一項に記載の流体漏洩検知方法。 The fluid is a refrigerant;
The fluid leakage detection method according to any one of claims 1 to 4.
前記配管構造における所定の区間に亘り、前記配管構造とは絶縁された状態で前記配管構造の外周部を覆っている導電性フィルムと、
前記区間の一端および他端に相当する前記導電性フィルムの両端部の間の電気抵抗を計測する電気抵抗計測部と、
前記電気抵抗が所定の基準値から逸脱していることに基づいて、前記区間における流体漏洩を検知する漏洩検知部と、を備え、
流体漏洩時には、
前記導電性フィルムの変形あるいは破断に起因して変化し、前記基準値から逸脱した前記電気抵抗が前記電気抵抗計測部により計測される、
ことを特徴とする配管構造。 A piping structure configured to detect leakage of fluid from inside,
Over a predetermined section in the piping structure, a conductive film covering the outer periphery of the piping structure in an insulated state from the piping structure;
An electrical resistance measurement unit that measures electrical resistance between both ends of the conductive film corresponding to one end and the other end of the section;
A leakage detector that detects fluid leakage in the section based on the electrical resistance deviating from a predetermined reference value; and
When fluid leaks,
Changed due to deformation or breakage of the conductive film, the electrical resistance deviating from the reference value is measured by the electrical resistance measurement unit,
A piping structure characterized by that.
前記配管構造における所定の区間に亘り、前記配管構造とは絶縁された状態で前記配管構造の外周部を覆い、前記区間の一端に相当する一端部が前記配管構造に接続される導電性フィルムと、
一定の電気抵抗値を有し、前記区間の他方に相当する前記導電性フィルムの他端部に直列に接続され、前記導電性フィルムおよび前記配管構造と共に電気回路を構成する一定抵抗と、
前記一定抵抗による電圧降下に相当する電位差を計測する電位差計測部と、
前記電位差が所定の基準値から逸脱していることに基づいて、前記区間における流体漏洩を検知する漏洩検知部と、を備え、
流体漏洩時には、
前記導電性フィルムの変形あるいは破断に起因して変化し、前記基準値から逸脱した前記電位差が前記電位差計測部により計測される、
ことを特徴とする配管構造。 A piping structure configured to detect leakage of fluid from inside,
A conductive film covering an outer periphery of the piping structure in a state insulated from the piping structure over a predetermined section in the piping structure, and having one end corresponding to one end of the section connected to the piping structure; ,
A constant resistance having a constant electrical resistance value, connected in series to the other end of the conductive film corresponding to the other of the section, and constituting an electric circuit together with the conductive film and the piping structure;
A potential difference measuring unit for measuring a potential difference corresponding to a voltage drop due to the constant resistance;
A leakage detector that detects fluid leakage in the section based on the potential difference deviating from a predetermined reference value;
When fluid leaks,
Changed due to deformation or breakage of the conductive film, the potential difference deviating from the reference value is measured by the potential difference measuring unit,
A piping structure characterized by that.
前記複数の区間のそれぞれに亘り、前記配管構造の前記外周部が前記導電性フィルムにより覆われ、
前記漏洩検知部は、前記区間毎に、流体漏洩を検知する、
請求項６または７に記載の配管構造。 A plurality of the sections are set in the piping structure,
Over each of the plurality of sections, the outer peripheral portion of the piping structure is covered with the conductive film,
The leak detection unit detects a fluid leak for each section.
The piping structure according to claim 6 or 7.
前記外周部と前記導電性フィルムとの間に介在する非導電性フィルムにより絶縁されている、
請求項６から８のいずれか一項に記載の配管構造。 The outer peripheral portion of the piping structure and the conductive film are
Insulated by a non-conductive film interposed between the outer peripheral portion and the conductive film,
The piping structure according to any one of claims 6 to 8.
請求項６から９のいずれか一項に記載の配管構造。 The fluid is a refrigerant;
The piping structure according to any one of claims 6 to 9.
前記配管構造における所定の区間に亘り、前記配管構造とは絶縁された状態に導電性フィルムを設け、前記導電性フィルムにより前記配管構造の外周部を覆うステップと、
前記区間の一端および他端に相当する前記導電性フィルムの両端部にそれぞれ配線を設け、前記両端部の間の電気抵抗を計測可能な電気回路を形成するステップと、を含み、
前記導電性フィルムの前記両端部の間の前記電気抵抗が、前記導電性フィルムの変形あるいは破断に起因して変化し、所定の基準値から逸脱していることに基づいて、前記区間における流体漏洩を検知可能に構成する、
ことを特徴とする施工方法。 A construction method for constructing the piping structure so as to detect leakage of fluid from the inside of the piping structure,
A step of providing a conductive film in a state insulated from the piping structure over a predetermined section in the piping structure, and covering an outer peripheral portion of the piping structure with the conductive film;
Providing wiring at both ends of the conductive film corresponding to one end and the other end of the section, and forming an electric circuit capable of measuring the electric resistance between the both ends,
Based on the fact that the electrical resistance between the both ends of the conductive film changes due to deformation or breakage of the conductive film and deviates from a predetermined reference value, fluid leakage in the section Configured to be detectable,
A construction method characterized by that.
前記配管構造における所定の区間に亘り、前記配管構造とは絶縁された状態に導電性フィルムを設け、前記導電性フィルムにより前記配管構造の外周部を覆うステップと、
前記区間の一端に相当する前記導電性フィルムの一端部を前記配管構造に接続するステップと、
前記導電性フィルムの他端部に、一定の電気抵抗値を有する一定抵抗を直列に接続し、前記配管構造、前記導電性フィルム、および前記一定抵抗を含む電気回路を形成するステップと、
前記一定抵抗による電圧降下に相当する電位差が、前記導電性フィルムの変形あるいは破断に起因して変化し、所定の基準値から逸脱していることに基づいて、前記区間における流体漏洩を検知可能に構成する、
ことを特徴とする施工方法。 A construction method for constructing the piping structure so as to detect leakage of fluid from the inside of the piping structure,
A step of providing a conductive film in a state insulated from the piping structure over a predetermined section in the piping structure, and covering an outer peripheral portion of the piping structure with the conductive film;
Connecting one end of the conductive film corresponding to one end of the section to the piping structure;
Connecting the constant resistance having a constant electrical resistance value in series to the other end of the conductive film to form the piping structure, the conductive film, and the electrical circuit including the constant resistance;
Based on the fact that the potential difference corresponding to the voltage drop due to the constant resistance changes due to deformation or breakage of the conductive film and deviates from a predetermined reference value, fluid leakage in the section can be detected. Configure,
A construction method characterized by that.
前記外周部を非導電性フィルムにより覆うステップを含む、
請求項１１または１２に記載の施工方法。 Prior to the step of covering the outer periphery of the piping structure with the conductive film,
Covering the outer periphery with a non-conductive film,
The construction method according to claim 11 or 12.
前記区間の長さに適合しかつ前記配管構造を全周に亘り包囲可能なサイズに予め形成されたフィルム積層体を使用し、
前記フィルム積層体は、前記導電性フィルムと、
前記導電性フィルムに積層されて前記導電性フィルムと前記外周部とを絶縁する非導電性フィルムと、を有する、
請求項１１または１２に記載の施工方法。 In the step of covering the outer peripheral portion of the piping structure with the conductive film,
Use a film laminate that is pre-formed to a size that fits the length of the section and can surround the piping structure over the entire circumference,
The film laminate includes the conductive film,
A non-conductive film laminated on the conductive film to insulate the conductive film and the outer peripheral portion,
The construction method according to claim 11 or 12.
前記区間毎に、前記配管構造の前記外周部を前記導電性フィルムにより覆うステップを実施する、
請求項１１から１４のいずれか一項に記載の施工方法。 A plurality of the sections are set in the piping structure,
For each section, performing the step of covering the outer peripheral portion of the piping structure with the conductive film,
The construction method according to any one of claims 11 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016237210A JP6710152B2 (en) | 2016-12-07 | 2016-12-07 | Method for detecting fluid leakage from piping structure, piping structure, and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016237210A JP6710152B2 (en) | 2016-12-07 | 2016-12-07 | Method for detecting fluid leakage from piping structure, piping structure, and construction method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018091795A JP2018091795A (en) | 2018-06-14 |
| JP2018091795A5 true JP2018091795A5 (en) | 2019-04-04 |
| JP6710152B2 JP6710152B2 (en) | 2020-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016237210A Active JP6710152B2 (en) | 2016-12-07 | 2016-12-07 | Method for detecting fluid leakage from piping structure, piping structure, and construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6710152B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7292041B2 (en) * | 2019-01-18 | 2023-06-16 | 三菱電機ビルソリューションズ株式会社 | Refrigerant leak detection system, heat pump system, and refrigerant leak notification system |
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2016
- 2016-12-07 JP JP2016237210A patent/JP6710152B2/en active Active
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