CN103761997A - 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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- CN103761997A CN103761997A CN201410017353.2A CN201410017353A CN103761997A CN 103761997 A CN103761997 A CN 103761997A CN 201410017353 A CN201410017353 A CN 201410017353A CN 103761997 A CN103761997 A CN 103761997A
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- power plant
- pipeline
- fire
- nuclear power
- fire extinguishing
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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
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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 the portable routine test device of a kind of nuclear power plant fire-fighting system.
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 distance and wide coverage, its fire water is not used and can be caused water quality deterioration for a long time, and then fire protection pipeline is produced to corrosive attack, and the pipeline being corroded likely produces seepage on the one hand, on the other hand likely because corrosion product is detained the obstruction that causes pipeline, cause the on-way resistance of pipe network to strengthen, and then make pressure and the requirement of flow off-design of fire-fighting system, affect the validity of fire extinguishing system, cause npp safety to be on the hazard.
In order to tackle the problems referred to above, the domestic indivedual nuclear power plants of China detected a flaw to pipeline by ultrasonic method in present stage, to search, leaked or block part.The method can find indivedual obstruction points to a certain extent, but waste time and energy, and overall picture that cannot complete embodiment fire-fighting main pipe, particularly personnel are difficult to the region and the buried underground pipeline that arrive, cannot check the impact of corrosive pipeline for fire-fighting system pressure and flow by the method.
Summary of the invention
The object of the present invention is to provide a kind of portable routine test device for nuclear power plant's fire-fighting system daily servicing and detection, ensure extinguishing ability and the fire safety level of nuclear power plant.
Technical scheme of the present invention is as follows: the portable routine test device of a kind of nuclear power plant fire-fighting system, comprise the pipeline being connected with the routine test point of fire-fighting system by test interface, the other end of pipeline is provided with scupper hose, is provided with manual isolation valve, tensimeter, flowmeter and manual modulation valve on described pipeline.
Further, the portable routine test device of nuclear power plant as above fire-fighting system wherein, is provided with the concentric reducer for meeting different tube diameters testing requirements between test interface and pipeline.
Further, the portable routine test device of nuclear power plant as above fire-fighting system, wherein, described pipeline is assembled by some sections of straight pipelines, between adjacent straight pipeline, by flange, connects.
Further, the portable routine test device of nuclear power plant as above fire-fighting system, wherein, described install pipeline is on platform truck movably.
Further, the portable routine test device of nuclear power plant as above fire-fighting system, wherein, the upstream line length of described flowmeter setting position 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, the portable routine test device of nuclear power plant as above fire-fighting system, wherein, the length of described scupper hose is not less than 50m.
Beneficial effect of the present invention is as follows: the present invention is mainly used in the routine test of power station commissioning and power plant's run duration, nuclear power plant's fire-fighting system pipe network is carried out to experimental measurement, with pressure and the flow of demonstration test point, confirm that fire-fighting system meets and in original designing requirement and pipe network, whether occur to stop up and have influence on pressure and the flow of fire-fighting system.Pressure and flow that this device can regularly offset anti-system pipeline within the full phase in longevity of nuclear power plant operation detect, by detected value and design load or initial launch numeric ratio.If when comparative result shows significant difference, illustrate that fire protection pipeline has occurred corrosion or stopped up, need to take measures to be improved, guarantee the validity of fire-fighting system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the main body of the portable routine test device of nuclear power plant provided by the present invention fire-fighting system is inside and outside galvanizing weldless steel tube straight pipeline, and take test interface 1 as upstream, take scupper hose 9 as downstream, the equipment arranging on this test pipe is as follows successively:
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 systems, be provided with concentric reducer to can be connected with the pipeline of DN65, DN80, DN100, DN150; Concentric reducer 3 is connected with test interface 1 by flange 2.
Manually isolation valve 4: play the effect of isolation or UNICOM's test unit and fire-fighting system.
Tensimeter 5: the hydraulic pressure while testing for measuring, measurement range can cover the pressure of each testing site, is generally 0～1.20MPa(gauge pressure), this accuracy of instrument is not less than 1 grade ± 1.0%FS.
Flowmeter 6: the flow while testing for measuring, measurement range can cover the flow of each testing site, is generally 0～80L/s, and this accuracy of instrument is not less than 1 grade ± 1.0%FS; The measurement that the distance of flowmeter front and back straight length should meet flowmeter requires (as upstream flow development length is not less than 10 times of pipeline nominal diameters, downstream flow development length is not less than 5 times of pipeline nominal diameters).
Manual modulation valve 8: by variable valve, can meet the requirement of measuring different pressures and flow combination parameter.
Scupper hose 9: for the fire water after preventing from testing impacts surrounding devices and cable, scupper hose length should meet the drainage requirement of least favorable testing site, is not less than 50m.
Platform truck 10: move to testing site for the ease of test unit, wheeled platform car is set; Meanwhile, for convenient, at pilot region, fix and measure, the equipment during with warranty test is steady, guarantees that test figure is accurate, is provided with securing device on platform truck.
Above-mentioned size and measurement range should be able to change according to the real needs of different IPs fire-fighting system of power plant routine test.
Between the said equipment, adopt multistage metal straight pipeline to connect by flange 7, be convenient to dismounting, clean and maintenance.
Do not affecting under the prerequisite of process of the test and result, for ease of in nuclear power plant some region that is difficult for entering test, this testing equipment has adopted on-the-spot assemblnig form.
Under unit accidental conditions, this test unit is not connected with fire_fighting pipe network, deposits in fixed location.During power station commissioning and routine test, by operating personnel, promote this equipment to specifying testing site, by the routine test joint on fire-fighting system pipe network, be connected manually opened variable valve with fire-fighting system, check flowmeter, whether checking pipeline flow meets the designing requirement of fire-fighting system flow; Examine and recording manometer reading, contrast with the design load of fire-fighting system pressure.By the actual motion ability of experimental examination fire protection pipeline.
Use this test unit to make regular check on fire-fighting pipeline pressure and flow, and compare with the design load of fire-fighting system pressure and flow, when there is marked difference, can judge that the phenomenon of stopping up has occurred fire-fighting pipeline section, and take further measures, pressure and the flow of with this, guaranteeing nuclear power plant's fire-fighting system within 40 years or 60 years full phases in longevity meet design requirement all the time, avoid the validity of its extinguishing ability to be affected.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if of the present invention these are revised and within modification belongs to the scope of the claims in the present invention and equivalent technology thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (6)
1. the portable routine test device of nuclear power plant's fire-fighting system, it is characterized in that: comprise the pipeline being connected with the routine test point of fire-fighting system by test interface (1), the other end of pipeline is provided with scupper hose (9), is provided with manual isolation valve (4), tensimeter (5), flowmeter (6) and manual modulation valve (8) on described pipeline.
2. the portable routine test device of nuclear power plant as claimed in claim 1 fire-fighting system, is characterized in that: between test interface (1) and pipeline, be provided with the concentric reducer (3) for meeting different tube diameters testing requirements.
3. the portable routine test device of nuclear power plant as claimed in claim 1 fire-fighting system, is characterized in that: described pipeline is assembled by some sections of straight pipelines, between adjacent straight pipeline, by flange, connects.
4. the portable routine test device of the nuclear power plant fire-fighting system as described in any one in claim 1-3, is characterized in that: described install pipeline is on platform truck (10) movably.
5. the portable routine test device of nuclear power plant as claimed in claim 1 fire-fighting system, is characterized in that: the upstream line length of described flowmeter (6) setting position is not less than 10 times of pipeline nominal diameters, and downstream line length is not less than 5 times of pipeline nominal diameters.
6. the portable routine test device of nuclear power plant as claimed in claim 1 fire-fighting system, is characterized in that: 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 |
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| CN103761997A true CN103761997A (en) | 2014-04-30 |
| CN103761997B CN103761997B (en) | 2017-01-11 |
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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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167227A (en) * | 2014-08-18 | 2014-11-26 | 中广核工程有限公司 | Improved program testing device of containment spray system of nuclear power station |
| CN108053901A (en) * | 2017-12-29 | 2018-05-18 | 广东核电合营有限公司 | Nuclear power plant's routine test is with periodically switching conflicting solution method |
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| 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 | Pipeline Leakage Monitoring and Safety Early Warning Test System |
| 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 | Pipeline Leakage Monitoring and Safety Early Warning Test System |
| 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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| 深圳市建设工程质量监督总站: "《新版建筑设备安装工程质量通病防治手册》", 30 November 2005 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167227A (en) * | 2014-08-18 | 2014-11-26 | 中广核工程有限公司 | Improved program testing device of containment spray system of nuclear power station |
| 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 |
| CN108053901A (en) * | 2017-12-29 | 2018-05-18 | 广东核电合营有限公司 | Nuclear power plant's routine test is with periodically switching conflicting solution method |
| 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 |
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| Publication number | Publication date |
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| CN103761997B (en) | 2017-01-11 |
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