CN106092461B - Nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system - Google Patents
Nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system Download PDFInfo
- Publication number
- CN106092461B CN106092461B CN201610326776.1A CN201610326776A CN106092461B CN 106092461 B CN106092461 B CN 106092461B CN 201610326776 A CN201610326776 A CN 201610326776A CN 106092461 B CN106092461 B CN 106092461B
- Authority
- CN
- China
- Prior art keywords
- air
- transfer pipe
- primary side
- leak detection
- mass spectrum
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
- G01M3/222—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for tubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/202—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material using mass spectrometer detection systems
- G01M3/205—Accessories or associated equipment; Pump constructions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/207—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material calibration arrangements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge systems, it includes the air injection cabinet for providing air, the diffuser being connected with air injection cabinet, diffuser includes matching and taper cover that the cover board for blocking manhole, fixed mounting base on the cover board, small end are connected in mounting base, being arranged in mounting base and adapter tube that tail end is connected with the appendix that air injects cabinet with steam generator manhole, offers equally distributed leakage hole in the big end of taper cover.The present invention is designed in primary side, the opposite side water indoor location purger of water chamber where probe, it blows into steam generator water chamber, the helium assembled in heat-transfer pipe is taken out of by air-flow, the helium stopped a leak influences detection bring, and the control of taper cover enters the indoor gas distribution of water, provides the requirement of air-flow with lesser total gas couette satisfaction for every heat-transfer pipe, it reduces and the air compressor machine power of air is provided, reduce the load of pipeline.
Description
Technical field
The present invention relates to nuclear power detection field, in particular to a kind of nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side
Purge system.
Background technique
In steam generator helium leak test implementation process, if there is leakage, the helium of leakage can be assembled in heat-transfer pipe,
On the one hand pipe bent position at the top of the heat-transfer pipe forms helium plug, on the other hand can spread from nozzle and overflow, into other heat-transfer pipes,
Detection can either way be impacted.Due to primary side water chamber shape, the limitation of tube sheet arrangement and manhole position, if from
It directly blows at manhole, in order to ensure having lasting air-flow in every heat-transfer pipe, then needs biggish total purge stream, in this way
With regard to needing powerful air compressor machine and the stronger gas delivery equipment of bearing capacity.After steam generator manhole is opened, in water chamber
The other equipment of placement cause interference by cable and external connection, to the sealing installation of helium leak detection device.
Summary of the invention
The object of the present invention is to provide a kind of nuclear boiler heat transfers for guaranteeing leak detection accuracy and improving leak detection efficiency
Pipe helium mass spectrum leak detection primary side purge system.
In order to solve the above technical problems, the present invention adopts the following technical scheme: a kind of nuclear boiler heat-transfer pipe helium matter
Spectrum leak detection primary side purge system, it includes the air injection cabinet for providing air, the diffusion being connected with air injection cabinet
Device, the diffuser include matching and being used to block the cover board of manhole with steam generator manhole, be fixed on the cover board
Taper cover that mounting base, small end are connected in the mounting base is arranged in the mounting base and tail end and air inject cabinet
The adapter tube that is connected of appendix, offer equally distributed leakage hole in the big end of the taper cover.
Optimization, pipe cap is installed, the pipe cap bottom is in open-like shape, and its open direction connects on the head end of the adapter tube
Pipe tail end direction, base diameter are greater than top diameter.
Optimization, identical to middle section diameter at the top of the pipe cap, middle section to base diameter is gradually increased.
Optimization, the big end of the taper cover is towards the arcwall face away from small extreme direction protrusion.
Optimization, structure is being protected equipped with cable seal on the cover board of the mounting base opposite side comprising two phases
Symmetrically arranged clamping plate, the sealing strip among the clamping plate of two symmetrical settings.
The beneficial effects of the present invention are: the opposite side water indoor location purging of present invention design water chamber where probe is set
It is standby, it blows, is taken out of by air-flow by the helium assembled in heat-transfer pipe is leaked, the helium stopped a leak into steam generator water chamber
Detection bring is influenced, it is every with lesser total gas couette satisfaction that the control of taper cover, which enters the indoor gas distribution of water,
Root heat-transfer pipe provides the requirement of air-flow, reduces and provides the air compressor machine power of air, reduces the load of pipeline；In cover plate for manhole
On devise cable trough, while protecting monitoring device in water chamber, improve the leakproofness of water chamber manhole.
Detailed description of the invention
Attached drawing 1 is structural schematic diagram when purge system of the present invention uses；
Attached drawing 2 is the structural schematic diagram of diffuser of the present invention；
Attached drawing 3 is the cross-sectional view A-A of attached drawing 2；
Attached drawing 4 is the structural schematic diagram that air of the present invention injects cabinet；
Wherein: 1, cover board；2, mounting base；3, it takes over；4, pipe cap；5, cabinet is injected；7, bolt；9, clamping plate；13, sealing strip；
14, taper cover；51, air intake is taken over；52, air outlet slit is taken over；53, helium injection adapter tube；54, flowmeter.
Specific embodiment
Embodiment shown in reference to the accompanying drawing is described in detail below the present invention:
Nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system, it includes providing the air injection cabinet of air
5, the diffuser being connected with air injection cabinet, as shown in Figure 1, 2, the diffuser includes and steam generator manhole
Match and is connected in the mounting base 2 for blocking the cover board 1 of manhole, the mounting base 2 being fixed on the cover board 1, small end
Taper cover 14 is arranged in the mounting base 2 and adapter tube 3 that tail end is connected with the appendix that air injects cabinet 5.
As shown in Figure 2,3, pipe cap 4 is installed, 4 bottom of pipe cap is in open-like shape, and it is spacious on the head end of the adapter tube 3
Mouth is greater than top diameter towards 3 tail end direction of adapter tube, base diameter.4 top of pipe cap is identical to middle section diameter, and middle section is extremely
Base diameter is gradually increased.The big end of the taper cover 14 is arcwall face of the court away from small extreme direction protrusion, is opened in big end
Equipped with equally distributed leakage hole.Cover board 1 is connect by bolt 7 with manhole, with set on the cover board of the mounting base opposite side
There is cable seal protection structure comprising the clamping plate 9 of two symmetrical settings, among the clamping plate of two symmetrical settings
Sealing strip 13, cable clamp are set between clamping plate 9 and sealing strip 13, and sealing strip is effectively placed.
In the present embodiment, the air injection cabinet 5 is equipped with air intake adapter tube 51, air outlet slit adapter tube 52, helium note
Enter adapter tube 53, helium sampling test tube, flowmeter 54, adapter tube 3 is connected with air outlet slit adapter tube 52.The effect of helium sampling adapter tube
It is periodically to carry out system sensitivity test in checkout procedure.Its operating process: taking a small amount of helium using helium sampling test tube,
From a small amount of helium injection adapter tube injection scavenging pipeline of injection cabinet.Helium is flowed with purge stream, successively by scavenging pipeline,
Diffuser, primary side water chamber, heat-transfer pipe reach heat transfer pipe end (purge stream outlet end), and are captured by suction gun, in mass spectrograph
On there is simulated leakage signal caused by this section of helium.During this, record is from starting to inject a small amount of helium to mass spectrograph appearance
Time interval between signal.It is normal that leak detection system operation is verified by this process.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by spirit, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system, it includes providing the air injection of air
Cabinet, with the diffuser that is connected of air injection cabinet, it is characterised in that: the diffuser includes and steam generator manhole
Match and for blocking the taper that the cover board of manhole, the mounting base being fixed on the cover board, small end are connected in the mounting base
Cover is arranged in the mounting base and adapter tube that tail end is connected with the appendix that air injects cabinet, the taper cover
Equally distributed leakage hole is offered in big end.
2. nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system according to claim 1, feature exist
In: pipe cap is installed on the head end of the adapter tube, the pipe cap bottom is in open-like shape, and its open direction adapter tube tail end direction,
Its base diameter is greater than top diameter.
3. nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system according to claim 2, feature exist
In: the pipe cap top is identical to middle section diameter, and middle section to base diameter is gradually increased.
4. nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system according to claim 1, feature exist
In: the big end of the taper cover is towards the arcwall face away from small extreme direction protrusion.
5. nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system according to claim 1, feature exist
In: structure is being protected equipped with cable seal on the cover board of the mounting base opposite side comprising the folder of two symmetrical settings
Plate, the sealing strip among the clamping plate of two symmetrical settings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326776.1A CN106092461B (en) | 2016-05-17 | 2016-05-17 | Nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610326776.1A CN106092461B (en) | 2016-05-17 | 2016-05-17 | Nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106092461A CN106092461A (en) | 2016-11-09 |
| CN106092461B true CN106092461B (en) | 2019-04-26 |
Family
ID=57229905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610326776.1A Active CN106092461B (en) | 2016-05-17 | 2016-05-17 | Nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106092461B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238690B (en) * | 2017-07-31 | 2023-07-28 | 苏州热工研究院有限公司 | High-temperature-resistant anti-collision protection device for portable alloy analyzer |
| CN107449559B (en) * | 2017-09-13 | 2019-04-23 | 苏州热工研究院有限公司 | A kind of helium leakage inspection method for pond stainless steel clad can in nuclear power unit control zone |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868048A (en) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | Primary side drying system of steam generator |
| CN105006257A (en) * | 2015-05-20 | 2015-10-28 | 大亚湾核电运营管理有限责任公司 | Drying device and method for secondary side of million-KW level pressurized water reactor nuclear power station evaporator |
| CN105023498A (en) * | 2015-06-17 | 2015-11-04 | 中科华核电技术研究院有限公司 | Steam generator test system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62177427A (en) * | 1986-01-31 | 1987-08-04 | Ishikawajima Harima Heavy Ind Co Ltd | Leak detecting method for double heat conduction tube vapor generator |
| JPH112583A (en) * | 1997-06-11 | 1999-01-06 | Ishikawajima Harima Heavy Ind Co Ltd | Method of identifying damaged heat exchanger tube in double heat exchanger tube type steam generator |
-
2016
- 2016-05-17 CN CN201610326776.1A patent/CN106092461B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868048A (en) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | Primary side drying system of steam generator |
| CN105006257A (en) * | 2015-05-20 | 2015-10-28 | 大亚湾核电运营管理有限责任公司 | Drying device and method for secondary side of million-KW level pressurized water reactor nuclear power station evaporator |
| CN105023498A (en) * | 2015-06-17 | 2015-11-04 | 中科华核电技术研究院有限公司 | Steam generator test system |
Non-Patent Citations (2)
| Title |
|---|
| 《核电站蒸汽发生器制造和停堆期间的泄漏检验》;丁训慎;《无损检测》;20090228;第31卷(第2期);第159-161、167页 |
| 《氦质谱检漏技术在蒸发器制造与停堆期间的应用》;李光伟 等;《科技创新与应用》;20131231(第12期);第23-24页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106092461A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105758593B (en) | Method for positioning and detecting water leakage is quantified using nuclear boiler heat-transfer pipe helium mass spectrum leak detection equipment | |
| CN106092461B (en) | Nuclear boiler heat-transfer pipe helium mass spectrum leak detection primary side purge system | |
| ATE478329T1 (en) | SYSTEM FOR DETECTING LEAKS IN A PIPE AIR LINE | |
| CN207231727U (en) | Gas-cooker whole airtightness leak detection system | |
| CN206479376U (en) | A kind of smoke dust sampling gun | |
| CN203519267U (en) | Gas leakage detection device | |
| CN106052968A (en) | Method for positioning leak points of helium mass spectrometer leak detection device for heat-transfer pipe of nuclear steam generator | |
| CN108871688A (en) | A kind of test-run a machine rack intercooler cooling line leakage detection method | |
| RU2271045C1 (en) | Moisture leakage checkup system for nps pipeline | |
| CN211374456U (en) | Probe device for testing high-temperature corrosion resistance of metal material on heating surface of boiler | |
| KR102066995B1 (en) | An inspector for tube leakage checking of a shell and tube type heat exchanger | |
| CN111068411A (en) | System for researching steam-water separation performance of corrugated plate dryer | |
| CN204807286U (en) | Condenser heat exchange tube leak hunting device and gas delivery cover thereof | |
| CN107525666A (en) | A kind of tap water testing machine special fixture with water valve switching device | |
| CN106017816B (en) | Nuclear boiler heat-transfer pipe helium mass spectrum leak detection equipment test simulation system | |
| CN206002428U (en) | Flue gas detecting system | |
| CN201116895Y (en) | Water cooling sleeve leakage checking device | |
| CN102853976B (en) | Online leakage detection method and device thereof for heat treatment furnace radiant tube | |
| KR20140131116A (en) | Drain pipe of leak detection devices | |
| CN205518214U (en) | Equal system of disposition of wet -type electrostatic precipitator insulator amount of wind all | |
| CN212809789U (en) | Constant injection generating device under normal pressure | |
| CN106017817A (en) | Secondary side system for helium mass spectrum leakage detection equipment for heat-transfer pipe of nuclear steam generator | |
| CN204083811U (en) | A kind of underground valve chamber fixes bleeding device | |
| CN220206997U (en) | Sealing detection device for valve assembly | |
| CN220632855U (en) | Water leakage protection device for fire-fighting spray header |
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 |