CN105782727A - Leakage detection method for natural gas system for gas power plant - Google Patents
Leakage detection method for natural gas system for gas power plant Download PDFInfo
- Publication number
- CN105782727A CN105782727A CN201610274349.3A CN201610274349A CN105782727A CN 105782727 A CN105782727 A CN 105782727A CN 201610274349 A CN201610274349 A CN 201610274349A CN 105782727 A CN105782727 A CN 105782727A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- leakage
- gas system
- detection method
- leakage detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a leakage detection method for a natural gas system for a gas power plant. The leakage detection method comprises the following steps of the step (1): tightly packing each of parts where natural gas is likely to leak, such as flanges and interfaces in the natural gas system with tinfoil; the step (2): opening an eyelet in each of the tightly packed tinfoil; the step (3): regularly measuring the eyelet in each of the tinfoil by an inflammable gas measuring instrument, and if micro leakage exists, exercising discretion in light of the circumstances according to the measuring result; the step (4) regularly inspecting the packing state of the tinfoil, wherein the situation that the tinfoil is well packed shows that the leakage does not exist, and the situation that the tinfoil package is broken shows that a large leakage quantity exists and the leakage needs to be handled as soon as possible. Through the adoption of the method, the micro leakage condition of flanges, interfaces and the like in the natural gas system can be precisely measured and judged, and the large leakage condition of the flanges, the interfaces and the like in the natural gas system can be rapidly judged, so that events of generating explosion and catching a fire when the natural gas in the natural gas system leaks and the leaked natural gas is accumulated to a certain extent, can be avoided.
Description
Technical field
The present invention relates to the safety in production field of plant gas, particularly relate to the leakage detection method of a kind of plant gas natural gas system.
Background technology
Natural gas gas power plant adopts natural gas as the energy, and green low-carbon effect is notable, only small with coal electricity phase comparison environmental effect, and every 1 kilowatt hour electricity just discharges nitrogen oxides 0.53 gram, less discharge carbon dioxide 530.27 grams less.Pollutant emission is relatively low, and Natural Gas Power Plant was set up like the mushrooms after rain in China in recent years.Natural gas is the general designation of the mixing gas based on hydrocarbon, ratio weighs about 0.65, lta, there is colourless, tasteless characteristic, the gas explosion limit is 5%-15%, Natural Gas Power Plant natural gas system is its greatest danger source, it is ensured that the tight No leakage of natural gas system is the most basic precondition ensureing Natural Gas Power Plant.
The commonly used natural gas leaking measuring method of current Natural Gas Power Plant is: use fuel gas measuring instrument that each flange of natural gas system, interface etc. are measured.
For preventing the natural gas that natural gas system is revealed from gathering and causing fire explosion to endanger, gas conveying system is generally carried out outdoor layout by Natural Gas Power Plant, so that the natural gas revealed can diffuse in air smoothly, use fuel gas measuring instrument to outdoor natural gas system flange, during the measurement such as interface, its small amount of leakage is difficult to be measured, because a small amount of natural gas is quickly just by Dilution air, when there being wind, the natural gas of micro-leakage is easy to be blown away, cause that fuel gas measuring instrument cannot accurately record each flange of natural gas system, whether interface etc. exist natural gas leaking situation.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding the leakage detection method of a kind of plant gas natural gas system so that it is have more the value in industry.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide one and quickly can detect the leak cases such as all flanges of natural gas system, interface accurately, it is ensured that the safety of production, it is to avoid the leakage detection method of the plant gas natural gas system having an accident.
The leakage detection method of a kind of plant gas natural gas system that the present invention proposes, it is characterised in that: comprise the following steps:
Step (1): the place masking foil that flanges all in natural gas system, interface etc. are likely to reveal natural gas tightly wraps up；
Step (2): open an aperture on the masking foil of tight parcel；
Step (3): regularly the aperture at all masking foil places being measured with fuel gas measuring instrument, if there being tiny leakage, dealing with on the merits of each case according to measurement result；
Step (4): the package status of each masking foil of periodical inspection, if masking foil parcel is intact, illustrates No leakage, if breakage occurs in masking foil parcel, then illustrates that amount of leakage is bigger, it is necessary to solve as early as possible.
As the further improvement of the inventive method, the masking foil parcel described in step (1) is at least three layers.
As the further improvement of the inventive method, the diameter of the aperture described in step (2) is 1 millimeter.
As the further improvement of the inventive method, the interval time with fuel gas measuring instrument periodic measurement described in step (3) is 3-7 days.
As the further improvement of the inventive method, described in step (3), be provided with safety index with fuel gas measuring instrument, if measurement result is within the scope of safety index, can delay process, if measurement result is beyond safety index scope, need to process as early as possible.
As the further improvement of the inventive method, the interval time of the periodical inspection described in step (4) is 12-24 hour.
By such scheme, the present invention at least has the advantage that the method can measure micro-leak cases such as judging all flanges of natural gas system, interface accurately, a large amount of leakage situation such as all flanges of natural gas system, interface can be judged rapidly, avoid natural gas system natural gas leaking, gather, blast, fire event.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Embodiment: the leakage detection method of a kind of plant gas natural gas system, comprises the following steps:
Step (1): the place masking foil that flanges all in natural gas system, interface etc. are likely to reveal natural gas tightly wraps up；
Step (2): open an aperture on the masking foil of tight parcel；
Step (3): regularly the aperture at all masking foil places being measured with fuel gas measuring instrument, if there being tiny leakage, dealing with on the merits of each case according to measurement result；
Step (4): the package status of each masking foil of periodical inspection, if masking foil parcel is intact, illustrates No leakage, if breakage occurs in masking foil parcel, then illustrates that amount of leakage is bigger, it is necessary to solve as early as possible.
Masking foil parcel described in step (1) is at least three layers.
The diameter of the aperture described in step (2) is 1 millimeter.
The interval time with fuel gas measuring instrument periodic measurement described in step (3) is 3-7 days.
Be provided with safety index with fuel gas measuring instrument described in step (3), if measurement result is within the scope of safety index, can delay process, if measurement result is beyond safety index scope, need to process as early as possible.
The interval time of the periodical inspection described in step (4) is 12-24 hour.
The method can measure micro-leak cases such as judging all flanges of natural gas system, interface accurately, a large amount of leakage situation such as all flanges of natural gas system, interface can be judged rapidly, avoid natural gas system natural gas leaking, gather, blast, fire event.
The above is only the preferred embodiment of the present invention; it is not limited to the present invention; should be understood that; for those skilled in the art; under the premise without departing from the technology of the present invention principle; can also making some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (6)
1. the leakage detection method of a plant gas natural gas system, it is characterised in that: comprise the following steps:
Step (1): the place masking foil that flanges all in natural gas system, interface etc. are likely to reveal natural gas tightly wraps up；
Step (2): open an aperture on the masking foil of tight parcel；
Step (3): regularly the aperture at all masking foil places being measured with fuel gas measuring instrument, if there being tiny leakage, dealing with on the merits of each case according to measurement result；
Step (4): the package status of each masking foil of periodical inspection, if masking foil parcel is intact, illustrates No leakage, if breakage occurs in masking foil parcel, then illustrates that amount of leakage is bigger, it is necessary to solve as early as possible.
2. the leakage detection method of a kind of plant gas natural gas system according to claim 1, it is characterised in that: the masking foil parcel described in step (1) is at least three layers.
3. the leakage detection method of a kind of plant gas natural gas system according to claim 2, it is characterised in that: the diameter of the aperture described in step (2) is 1 millimeter.
4. the leakage detection method of a kind of plant gas natural gas system according to claim 3, it is characterised in that: the interval time with fuel gas measuring instrument periodic measurement described in step (3) is 3-7 days.
5. the leakage detection method of a kind of plant gas natural gas system according to claim 4, it is characterized in that: described in step (3), be provided with safety index with fuel gas measuring instrument, if measurement result is within the scope of safety index, can delay process, if measurement result beyond safety index scope, needs to process as early as possible.
6. the leakage detection method of a kind of plant gas natural gas system according to claim 5, it is characterised in that: the interval time of the periodical inspection described in step (4) is 12-24 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274349.3A CN105782727B (en) | 2016-04-28 | 2016-04-28 | A kind of leakage detection method of plant gas natural gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274349.3A CN105782727B (en) | 2016-04-28 | 2016-04-28 | A kind of leakage detection method of plant gas natural gas system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105782727A true CN105782727A (en) | 2016-07-20 |
| CN105782727B CN105782727B (en) | 2019-05-10 |
Family
ID=56398897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610274349.3A Active CN105782727B (en) | 2016-04-28 | 2016-04-28 | A kind of leakage detection method of plant gas natural gas system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105782727B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797324A (en) * | 2020-12-28 | 2021-05-14 | 华能江阴燃机热电有限责任公司 | Leakage detection method for natural gas system of gas power plant |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191012515A (en) * | 1910-05-23 | 1910-10-06 | Paul Georg Fischer | An Improved Apparatus for Indicating the Escape of Gas from Pipes or Conduits. |
| CN2901009Y (en) * | 2006-05-24 | 2007-05-16 | 北京中科爱生环境技术有限公司 | Heat insulation sound conducting film type sound conducting tube |
| CN202547885U (en) * | 2012-05-11 | 2012-11-21 | 中国长江电力股份有限公司 | Fluid medium seal leakage detection device |
| CN102861397A (en) * | 2012-10-11 | 2013-01-09 | 西安新竹防灾救生设备有限公司 | Dry powder extinguishment explosion suppression system of oil tank truck |
| CN103418015A (en) * | 2012-05-14 | 2013-12-04 | 松下电器产业株式会社 | Deodorization device and refrigerator having same |
| CN204388491U (en) * | 2015-01-14 | 2015-06-10 | 马鞍山天福康药业有限公司 | A kind of traditional Chinese medicine drying machine of anti-microwave from leakage |
| CN204785581U (en) * | 2015-07-11 | 2015-11-18 | 杭州萧越热电有限公司 | Steam conduit protection device that ventilates |
| CN105181265A (en) * | 2015-09-02 | 2015-12-23 | 佛山市瀛辉包装机械设备有限公司 | Sinking intermittent plastic container leak detector |
| CN105222963A (en) * | 2015-09-02 | 2016-01-06 | 佛山市瀛辉包装机械设备有限公司 | A kind of sealing leak detection method of plastic containers of metallic film sealing |
-
2016
- 2016-04-28 CN CN201610274349.3A patent/CN105782727B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191012515A (en) * | 1910-05-23 | 1910-10-06 | Paul Georg Fischer | An Improved Apparatus for Indicating the Escape of Gas from Pipes or Conduits. |
| CN2901009Y (en) * | 2006-05-24 | 2007-05-16 | 北京中科爱生环境技术有限公司 | Heat insulation sound conducting film type sound conducting tube |
| CN202547885U (en) * | 2012-05-11 | 2012-11-21 | 中国长江电力股份有限公司 | Fluid medium seal leakage detection device |
| CN103418015A (en) * | 2012-05-14 | 2013-12-04 | 松下电器产业株式会社 | Deodorization device and refrigerator having same |
| CN102861397A (en) * | 2012-10-11 | 2013-01-09 | 西安新竹防灾救生设备有限公司 | Dry powder extinguishment explosion suppression system of oil tank truck |
| CN204388491U (en) * | 2015-01-14 | 2015-06-10 | 马鞍山天福康药业有限公司 | A kind of traditional Chinese medicine drying machine of anti-microwave from leakage |
| CN204785581U (en) * | 2015-07-11 | 2015-11-18 | 杭州萧越热电有限公司 | Steam conduit protection device that ventilates |
| CN105181265A (en) * | 2015-09-02 | 2015-12-23 | 佛山市瀛辉包装机械设备有限公司 | Sinking intermittent plastic container leak detector |
| CN105222963A (en) * | 2015-09-02 | 2016-01-06 | 佛山市瀛辉包装机械设备有限公司 | A kind of sealing leak detection method of plastic containers of metallic film sealing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797324A (en) * | 2020-12-28 | 2021-05-14 | 华能江阴燃机热电有限责任公司 | Leakage detection method for natural gas system of gas power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105782727B (en) | 2019-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105782727A (en) | Leakage detection method for natural gas system for gas power plant | |
| CN110822295A (en) | Method for gathering, transporting, protecting and monitoring and controlling leakage of poisonous and harmful gas | |
| CN109323818A (en) | Leakage point Smoke Detection technique and its device | |
| CN107831028A (en) | A kind of more mouthfuls of coupling venting of dust explosion measure of merit devices of combustible dust and method of testing | |
| CN105692541A (en) | Wharf oil and gas recycling security device and method | |
| CN208703213U (en) | A kind of one-way ventilating explosion-proof valve and box body tightness detect jig | |
| CN204375798U (en) | A kind of battery firebreak device | |
| CN103837310A (en) | Detection error prevention device and using method thereof | |
| CN107687922A (en) | A kind of air tightness test platform for converter cover | |
| CN101424673B (en) | Dangerous characteristic detector for flammable gas | |
| CN101358687B (en) | Gas safety conveying method | |
| CN204228647U (en) | A kind of explosion testing device | |
| CN103983445A (en) | Fireproof test device of high-speed ventilation valve | |
| CN112763647A (en) | Graded alarm protection system and alarm protection method for high-pressure hydrogen equipment | |
| CN106621588A (en) | Treatment apparatus and treatment process of dust-bearing organic waste gas | |
| CN113092529B (en) | Gas distribution device and method for protecting explosion venting film based on pressure balance principle | |
| CN201965108U (en) | Ignition effect tester for dangerous liquid articles under closed condition | |
| CN206240184U (en) | It is a kind of for the processing unit containing dust organic exhaust gas | |
| CN203849018U (en) | High-speed ventilation valve fire protection test device | |
| CN108036336A (en) | A kind of method of safe utilization percolate treatment plant biogas | |
| CN112785819A (en) | High-pressure hydrogen equipment leakage alarm protection system and alarm protection method | |
| CN219474905U (en) | Detection device for explosion-proof overpressure exhaust valve | |
| CN219104234U (en) | Stress detection probe used in explosion-proof environment | |
| CN112797324A (en) | Leakage detection method for natural gas system of gas power plant | |
| CN202302555U (en) | Pipeline repairer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |