CN103761997B - Mobile periodic testing device of fire extinguishing system in nuclear power plant - Google Patents
Mobile periodic testing device of fire extinguishing system in nuclear power plant Download PDFInfo
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- CN103761997B CN103761997B CN201410017353.2A CN201410017353A CN103761997B CN 103761997 B CN103761997 B CN 103761997B CN 201410017353 A CN201410017353 A CN 201410017353A CN 103761997 B CN103761997 B CN 103761997B
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- China
- Prior art keywords
- pipeline
- fire extinguishing
- power plant
- extinguishing system
- nuclear power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention relates to a mobile periodic testing device of a fire extinguishing system in a nuclear power plant. The mobile periodic testing device of the fire extinguishing system in the nuclear power plant comprises a pipeline connected with a periodic testing point of the fire extinguishing system by a testing interface, and the other end of the pipeline is provided with a water exhaust flexible pipe; the pipeline is provided with a manual insulation valve, a pressure meter, a flow meter and a manual regulating valve, is formed by assembling a plurality of straight pipelines, and is arranged on a mobile platform vehicle. The mobile periodic testing device of the fire extinguishing system in the nuclear power plant is mainly applied to the periodic testing in the period of power plant debugging and operation, and is applied to testing and measurement of pipe networks of the fire extinguishing system in the nuclear power plant so as to verify the pressure and the flow rate of the testing point, confirm whether the fire extinguishing system accords with an original design requirement, whether the pipe networks are blocked to affect the pressure and the flow rate of the fire extinguishing system, and guarantees the effectiveness of the fire extinguishing system.
Description
Technical field
The invention belongs to the designing technique of fire-fighting system, be specifically related to a kind of nuclear power plant fire-fighting system portable
Routine test device.
Background technology
According to nuclear power plant's operational experience feedback for many years, nuclear power plant's fire-fighting system arranges complexity, pipeline laying away from
From long and wide coverage, its fire water does not the most use and can cause water quality deterioration, and then to fire protection pipeline
Produce corrosiveness, and on the one hand the pipeline being corroded likely produces seepage, on the other hand likely because of corruption
Erosion product is detained and causes the blocking of pipeline, causes the on-way resistance of pipe network to strengthen, and then makes fire-fighting system
Pressure and flow off-design requirement, affect the effectiveness of fire extinguishing system, cause npp safety to be on the hazard.
In order to tackle the problems referred to above, pipeline is carried out by ultrasonic method by domestic indivedual nuclear power plants of China in present stage
Flaw detection, in order to search leakage or block part.The method can find indivedual plugging point to a certain extent,
But waste time and energy, and cannot completely embody what the overall picture of fire-fighting main pipe, particularly personnel were difficult to arrive
Region and the pipeline of buried underground, it is impossible to by the method check corrosive pipeline for fire-fighting system pressure and
The impact of flow.
Summary of the invention
It is an object of the invention to provide a kind of for nuclear power plant's fire-fighting system regular maintenance and the movement of detection
Formula routine test device, ensures extinguishing ability and the fire safety level of nuclear power plant.
Technical scheme is as follows: a kind of mobile periodic testing device of fire extinguishing system in nuclear power plant, bag
Including the pipeline being connected by test interface with the routine test point of fire-fighting system, the other end of pipeline is provided with
Scupper hose, is provided with manual isolation valve, Pressure gauge, effusion meter and manual modulation valve on described pipeline.
Further, mobile periodic testing device of fire extinguishing system in nuclear power plant as above, wherein, in examination
Test the concentric reducer being provided with between interface and pipeline for meeting different tube diameters test requirements document.
Further, mobile periodic testing device of fire extinguishing system in nuclear power plant as above, wherein, described
Pipeline assembled by some sections of straight pipelines, pass through Flange joint between adjacent straight pipeline.
Further, mobile periodic testing device of fire extinguishing system in nuclear power plant as above, wherein, described
Pipeline is arranged on moveable platform truck.
Further, mobile periodic testing device of fire extinguishing system in nuclear power plant as above, wherein, described
Effusion meter arranges the upstream line length of position and is not less than 10 times of pipeline nominal diameters, and downstream line length is not
Less than 5 times of pipeline nominal diameters.
Further, mobile periodic testing device of fire extinguishing system in nuclear power plant as above, wherein, described
The length of scupper hose not less than 50m.
Beneficial effects of the present invention is as follows: present invention is mainly used for determining of power station commissioning and power plant's run duration
Phase tests, and nuclear power plant's fire-fighting system pipe network carries out test and measures, to verify pressure and the flow of testing site,
Confirm whether fire-fighting system occurs blocking to have influence on fire-fighting system in meeting original design requirement and pipe network
The pressure of system and flow.This device can periodically offset anti-system pipeline within the full phase in longevity that nuclear power plant runs
Pressure and flow detect, by detected value and design load or initial launch numeric ratio relatively.If comparing knot
When fruit shows significant difference, illustrate that corrosion or blocking has occurred in fire protection pipeline, need to take measures to add
To improve, it is ensured that the effectiveness of fire-fighting system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, the main body of mobile periodic testing device of fire extinguishing system in nuclear power plant provided by the present invention
For inside and outside galvanizing seamless steel pipe straight pipeline, with test interface 1 as upstream, with scupper hose 9 as downstream,
The equipment arranged on this test pipe is as follows:
Fire-fighting system test interface 1: for being connected with the routine test point of fire-fighting system.
Concentric reducer 3: in order to meet the routine test requirement of various caliber fire-fighting system, be provided with concentric reducer so that
Can be connected with the pipeline of DN65, DN80, DN100, DN150；Concentric reducer 3 is by flange 2 and test
Interface 1 connects.
Manual isolation valve 4: play the effect of isolation or UNICOM's assay device and fire-fighting system.
Pressure gauge 5: the hydraulic pressure when experiment with measuring, measurement scope can cover the pressure of each testing site, and one
As be 0～1.20MPa(gauge pressure), this accuracy of instrument is not less than 1 grade ± 1.0%FS.
Effusion meter 6: the flow when experiment with measuring, measurement scope can cover the flow of each testing site, and one
As be 0～80L/s, this accuracy of instrument is not less than 1 grade ± 1.0%FS；Before and after effusion meter, the distance of straight length should
(if upstream flow development length is not less than 10 times of pipeline nominal diameters, downstream is straight to meet the measurement requirement of effusion meter
Length of pipe section is not less than 5 times of pipeline nominal diameters).
Manual modulation valve 8: by regulation valve, measurement different pressures and the requirement of flow combination parameter can be met.
Scupper hose 9: in order to prevent the fire water after testing from surrounding devices and cable being impacted, scupper hose
Length should meet the drainage requirement of least favorable testing site, not less than 50m.
Platform truck 10: move to testing site for the ease of assay device, arranges wheeled platform car；Meanwhile, for
Convenience is fixed at pilot region and is measured, steady with equipment during guarantee test, it is ensured that test data
Accurately, platform truck is provided with securing device.
Above-mentioned size and the scope of measurement should be able to be according to the real needs of different IPs fire-fighting system of power plant routine test
Change.
Multistage metal straight pipeline is used to be connected by flange 7 between the said equipment, it is simple to dismantle, clean and tie up
Repair maintenance.
On the premise of not affecting process of the test and result, for ease of some region being not easily accessible in nuclear power plant
Testing, this testing equipment have employed on-the-spot assemblnig form.
Under unit accidental conditions, this assay device is not connected with fire_fighting pipe network, deposits in fixed location.
During power station commissioning and routine test, by operator promote this equipment to specify testing site, by fire-fighting system
Online routine test joint under the overall leadership is connected with fire-fighting system, and manually opened regulation valve is checked effusion meter, tested
Whether card pipeline flow meets the design requirement of fire-fighting system flow；Examine and recording manometer reading, and disappear
The design load of anti-system pressure contrasts.By the actual motion ability of experimental examination fire protection pipeline.
Use this assay device that fire-fighting pipeline pressure and flow are made regular check on, and with fire-fighting system pressure
Comparing with the design load of flow, can determine that when there is marked difference fire-fighting pipeline section has occurred showing of blocking
As, and take further measures, guarantee nuclear power plant's fire-fighting system within 40 years or 60 years full phases in longevity with this
Pressure and flow meet design requirement all the time, it is to avoid the effectiveness of its extinguishing ability is affected.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
The spirit and scope of invention.So, if these amendments and modification to the present invention belong to right of the present invention
Require and within the scope of equivalent technology, then the present invention is also intended to comprise these change and modification.
Claims (4)
1. a mobile periodic testing device of fire extinguishing system in nuclear power plant, it is characterised in that: include passing through
The pipeline that test interface (1) is connected with the routine test point of fire-fighting system, the other end of pipeline is provided with row
Water tube hose (9), is provided with manual isolation valve (4), Pressure gauge (5), effusion meter (6) on described pipeline
With manual modulation valve (8)；Described pipeline is assembled by some sections of straight pipelines, adjacent straight pipeline it
Between pass through Flange joint；Described pipeline is arranged on moveable platform truck (10).
2. mobile periodic testing device of fire extinguishing system in nuclear power plant as claimed in claim 1, its feature
It is: between test interface (1) and pipeline, be provided with the concentric reducer for meeting different tube diameters test requirements document
(3)。
3. mobile periodic testing device of fire extinguishing system in nuclear power plant as claimed in claim 1, its feature
It is: described effusion meter (6) arranges the upstream line length of position and is not less than 10 times of pipeline nominal diameters,
Downstream line length is not less than 5 times of pipeline nominal diameters.
4. mobile periodic testing device of fire extinguishing system in nuclear power plant as claimed in claim 1, its feature
It is: the length of described scupper hose (9) is not less than 50m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017353.2A CN103761997B (en) | 2014-01-15 | 2014-01-15 | Mobile periodic testing device of fire extinguishing system in nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410017353.2A CN103761997B (en) | 2014-01-15 | 2014-01-15 | Mobile periodic testing device of fire extinguishing system in nuclear power plant |
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| Publication Number | Publication Date |
|---|---|
| CN103761997A CN103761997A (en) | 2014-04-30 |
| CN103761997B true CN103761997B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410017353.2A Active CN103761997B (en) | 2014-01-15 | 2014-01-15 | Mobile periodic testing device of fire extinguishing system in nuclear power plant |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104167227B (en) * | 2014-08-18 | 2017-12-12 | 中广核工程有限公司 | A kind of nuclear power plant containment shell spray system improves item experimental rig |
| CN108053901B (en) * | 2017-12-29 | 2020-05-12 | 广东核电合营有限公司 | Method for solving conflict between periodic test and periodic switching of nuclear power plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195350Y (en) * | 1994-04-12 | 1995-04-26 | 周修华 | Fire-fighting terminal water testing apparatus |
| CN2722967Y (en) * | 2004-06-29 | 2005-09-07 | 周如华 | End test water detector |
| CN101255952A (en) * | 2007-03-01 | 2008-09-03 | 中国石油天然气股份有限公司 | Test system for monitoring pipe leakage and early warning safety |
| CN103453322A (en) * | 2013-08-24 | 2013-12-18 | 北京工业大学 | Experimental method for leakage characteristics of buried petroleum transmission pipeline |
| CN203773962U (en) * | 2014-01-15 | 2014-08-13 | 中国核电工程有限公司 | Mobile periodic test device for nuclear power plant firefighting system |
-
2014
- 2014-01-15 CN CN201410017353.2A patent/CN103761997B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195350Y (en) * | 1994-04-12 | 1995-04-26 | 周修华 | Fire-fighting terminal water testing apparatus |
| CN2722967Y (en) * | 2004-06-29 | 2005-09-07 | 周如华 | End test water detector |
| CN101255952A (en) * | 2007-03-01 | 2008-09-03 | 中国石油天然气股份有限公司 | Test system for monitoring pipe leakage and early warning safety |
| CN103453322A (en) * | 2013-08-24 | 2013-12-18 | 北京工业大学 | Experimental method for leakage characteristics of buried petroleum transmission pipeline |
| CN203773962U (en) * | 2014-01-15 | 2014-08-13 | 中国核电工程有限公司 | Mobile periodic test device for nuclear power plant firefighting system |
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| Publication number | Publication date |
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| CN103761997A (en) | 2014-04-30 |
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