CN113533536A - Nuclear power pipeline detection trace coupling water supply and recovery system - Google Patents
Nuclear power pipeline detection trace coupling water supply and recovery system Download PDFInfo
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- CN113533536A CN113533536A CN202110830335.6A CN202110830335A CN113533536A CN 113533536 A CN113533536 A CN 113533536A CN 202110830335 A CN202110830335 A CN 202110830335A CN 113533536 A CN113533536 A CN 113533536A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 238000011084 recovery Methods 0.000 title claims abstract description 47
- 238000010168 coupling process Methods 0.000 title claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 230000008878 coupling Effects 0.000 title claims description 6
- 239000000523 sample Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000007822 coupling agent Substances 0.000 claims description 23
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000013589 supplement Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 10
- 238000007689 inspection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/04—Level control, e.g. controlling quantity of material stored in vessel with auxiliary non-electric power
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
本发明公开了一种核电管道检测微量耦合水供给及回收系统，其包括安装箱体、储水箱、连接于储水箱上的耦合剂供给部、耦合剂回收补给部，耦合剂回收补给部包括连接于储水箱内部耦合剂上方的空腔上的真空管、安装于真空管上的真空泵、用于回收耦合剂供给部提供给探头使用后的耦合剂的回收箱、连接于储水箱和回收箱之间的回收管，真空管的一端与储水箱内部耦合剂上方的空腔相连通，另一端与大气连接，回收管一端位于回收箱的耦合剂内，另一端与储水箱内部耦合剂上方的空腔相连通，采用独立机构，所有部件均安装在安装箱体内，系统集成性高，可预先调整好参数，提高现场使用效率；系统水扬程高，适应主设备工位与水回收系统间的高度差。
The invention discloses a micro-coupling water supply and recovery system for nuclear power pipeline detection. A vacuum tube on the cavity above the couplant inside the water storage tank, a vacuum pump installed on the vacuum tube, a recovery box for recovering the couplant provided by the couplant supply to the probe after use, a connection between the water storage tank and the recovery box The recovery tube, one end of the vacuum tube is connected to the cavity above the couplant in the water storage tank, and the other end is connected to the atmosphere. , using an independent mechanism, all components are installed in the installation box, the system is highly integrated, parameters can be adjusted in advance to improve the efficiency of on-site use; the system has a high water lift, which adapts to the height difference between the main equipment station and the water recovery system.
Description
Technical Field
The invention belongs to the field of nuclear power detection equipment, and particularly relates to a micro-coupling water supply and recovery system for nuclear power pipeline detection.
Background
According to the requirements of the in-service/pre-service inspection specifications and standards of the EPR nuclear power station, the CRDM welding line above the top cover of the pressure vessel needs to be automatically and periodically scanned by ultrasound, and because the part is in a high-temperature, high-pressure and high-radiation environment for a long time, the parts are easy to crack, corrode, collide, scratch and the like, special automatic equipment needs to be developed to carry out ultrasonic inspection on the part, and the exposure dose of workers is reduced.
In order to improve the coupling effect during ultrasonic scanning, a layer of acoustically transparent medium applied between the probe and the surface of the workpiece is called a coupling agent. The couplant has the functions of eliminating air between the probe and the surface of the workpiece, effectively transmitting ultrasonic waves into the workpiece, achieving the purpose of flaw detection, and reducing friction. Because the ultrasonic scanning device is relatively high in height during use, it is necessary to develop a high-lift water supply and recovery system for continuously supplying and recovering coupling water for the ultrasonic probe inside the scanner,
the Chinese patent with the application number of 201510259447.4 discloses an omega-shaped welding seam ultrasonic scanning water circulation system of a control rod driving mechanism of a nuclear power station, the system is simple in structure, and the space is effectively reduced when the whole system is arranged in equipment. However, the system cannot adjust and display the water supply pressure and the system flow in real time, has no filtering device, needs manual water supplement after the water loss of the system, and has insufficient system safety, narrow system applicability and insufficient expansibility. Therefore, it is necessary to design an ultrasonic coupling water supply and recovery function independent system with high automation degree, high independence, high integration level, high safety and wider application occasions.
Disclosure of Invention
The invention aims to provide a fully-automatic micro-coupling water supply and recovery system for nuclear power pipeline detection.
In order to solve the technical problems, the invention adopts the following technical scheme: a nuclear power pipeline detection micro-coupling water supply and recovery system comprises a mounting box body, a water storage box arranged in the mounting box body, a coupling agent supply part connected to the water storage box body, and a coupling agent recovery and supply part, wherein the coupling agent recovery and supply part comprises a vacuum tube connected to a cavity above a coupling agent in the water storage box body, a vacuum pump arranged on the vacuum tube, a recovery box used for recovering the coupling agent supplied by the coupling agent supply part to a probe, and a recovery tube connected between the water storage box body and the recovery box, one end of the vacuum tube is communicated with the cavity above the coupling agent in the water storage box body, the other end of the vacuum tube is connected with the atmosphere, one end of the recovery tube is positioned in the coupling agent in the recovery box, the other end of the recovery tube is communicated with the cavity above the coupling agent in the water storage box body, when the vacuum pump works, the cavity above the coupling agent in the water storage box body forms negative pressure, and the coupling agent of the recovery tank enters the water storage tank through the recovery pipe.
Preferably, the couplant supply part comprises a supply pipe and a couplant pump arranged on the supply pipe, one end of the supply pipe is connected in the water storage tank, and the other end of the supply pipe is connected to the probe.
Furthermore, the supply pipe is also provided with a pressure regulating valve and a pressure safety valve, and the pressure regulating valve is provided with a pressure relief pipe connected to the water storage tank.
Furthermore, the connection end of the supply pipe and the water storage tank is the water inlet end of the supply pipe, the other end of the supply pipe is the water outlet end, and the water inlet end of the supply pipe, the couplant pump, the pressure safety valve, the pressure regulating valve and the water outlet end of the supply pipe are sequentially arranged.
Preferably, the couplant recovery and supply part comprises a vacuum pressure sensor which is arranged on the side wall of the upper end part of the water storage tank and is positioned above the couplant in the water storage tank.
Preferably, the vacuum pipe is provided with a vacuum safety valve and a branch pipe, and when the vacuum degree in the cavity above the coupling agent in the water storage tank is too high, the vacuum safety valve is opened to enable the branch pipe to be communicated with atmosphere to supplement air to enter the vacuum pump.
Preferably, a first floating ball switch, a second floating ball switch, a third floating ball switch and a fourth floating ball switch are sequentially arranged on the side wall of the water storage tank from top to bottom, the first floating ball switch is used for sending a couplant overfilling signal, the second floating ball switch is used for sending a couplant overfilling signal, the third floating ball switch displays the normal working liquid level of the couplant, and the fourth floating ball switch is used for sending a couplant shortage signal.
Furthermore, a drain valve is arranged between the water inlet end of the supply pipe and the couplant pump.
Preferably, the system further comprises a supplementary pipe and a water supply valve for automatically supplementing the couplant in the phase storage tank after the couplant is consumed, and the water supply valve is installed on the supplementary pipe.
The invention has the beneficial effects that: an independent mechanism is adopted, all components are arranged in the installation box body, the system integration is high, parameters can be adjusted in advance, and the field use efficiency is improved; the system has high water lift, and is suitable for the height difference between the main equipment station and the water recovery system; the equipment structure is regular, and the field transportation is convenient; the equipment is provided with a plurality of pressure switches, safety valves, inductive switches and other protection elements, so that the system safety is high; when the system is shut down, the couplant water pump can be immediately stopped, and the vacuum pump can be continuously operated for a period of time to recover the couplant in the water pipe. This function ensures a minimum loss of water at the inspection site; when the couplant is lost, the system can be automatically supplemented to the set height without the intervention of an operator, and the automation degree is high.
Drawings
FIG. 1 is a schematic structural diagram of a nuclear power pipeline detection micro-coupling water supply and recovery system;
FIG. 2 is a configuration diagram of a nuclear power pipeline detection micro-coupling water supply and recovery system.
Detailed Description
The invention will be described in detail below with reference to an embodiment shown in the drawings.
As shown in fig. 1-2, the system for supplying and recovering micro coupling water for nuclear power pipeline detection comprises an installation box body 0, a water storage tank 19 arranged in the installation box body 0, a first float switch 18, a second float switch 17, a third float switch 16, a fourth float switch 15, a coupling agent supply part a connected to the water storage tank 19, a coupling agent recovery and supply part C, and a coupling agent filling part B for automatically replenishing the coupling agent in the water storage tank 19 after the coupling agent is consumed, wherein the first float switch 18, the second float switch 17, the third float switch 16 and the fourth float switch 15 are sequentially arranged on the side wall of the water storage tank 19 from top to bottom.
The coupling agent filling section B includes a water feed valve 7 and a refill pipe 6 connected to the water storage tank 19, and the water feed valve 7 is attached to the refill pipe 6.
The couplant recovery and supply part comprises a vacuum tube 20 connected to a cavity above the couplant in a water storage tank 19, a vacuum pump 1 arranged on the vacuum tube 20, a recovery tank 10 used for recovering the couplant supplied by a couplant supply part for a probe to use, a recovery tube 5 connected between the water storage tank 19 and the recovery tank 10, and a vacuum pressure sensor 3 arranged on the side wall of the upper end part of the water storage tank 19 and positioned above the couplant in the water storage tank 19, one end of the vacuum tube 20 is communicated with the cavity 4 above the couplant in the water storage tank 19, the other end of the vacuum tube is connected with the atmosphere, one end of the recovery tube 5 is positioned in the couplant in the recovery tank 10, and the other end of the recovery tube is communicated with the cavity above the couplant in the water storage tank 19, when the vacuum pump 1 works, a negative pressure is formed in the cavity above the couplant in the water storage tank 19, and the couplant in the recovery tank 10 enters the water storage tank 19 through the recovery pipe 5. The vacuum pipe 20 is provided with a vacuum safety valve 2 and a branch pipe, when the vacuum degree in the cavity above the coupling agent in the water storage tank 19 is too high, the vacuum safety valve 2 is opened to enable the branch pipe to be communicated with atmosphere to supplement air to enter the vacuum pump 1.
The couplant supply unit includes a supply pipe 13 and a couplant pump 12 provided on the supply pipe 13, and one end of the supply pipe 13 is connected to the inside of the water tank 19, and the other end is connected to the probe 9. The supply pipe 13 is also provided with a pressure regulating valve 11 and a pressure safety valve 8, and the pressure regulating pipe is connected to a water storage tank 19 through a pressure relief pipe. The connection end of the supply pipe and the water storage tank 19 is the water inlet end of the supply pipe, the other end is the water outlet end, and the water inlet end of the supply pipe 13, the couplant pump 12, the pressure safety valve 11, the pressure regulating valve 8 and the water outlet end of the supply pipe 13 are sequentially arranged. A drain valve 14 is arranged between the water inlet end of the supply pipe 13 and the couplant pump 12.
The first float switch 18 is used for sending a couplant overfill signal, the second float switch 17 is used for sending a couplant overfill signal, the third float switch 16 displays the normal working liquid level of the couplant, and the fourth float switch 15 is used for sending a couplant shortage signal.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a nuclear power pipeline detects trace coupling water supply and recovery system, its includes the installation box, locate storage water tank in the installation box, connect in couplant supply unit, couplant recovery supply unit on the storage water tank which characterized in that: the couplant recycling and supplying part comprises a vacuum tube connected to a cavity above the couplant in the water storage tank, a vacuum pump installed on the vacuum tube, a recycling tank used for recycling the couplant supplied by the couplant supplying part to the probe for use, and a recycling tube connected between the water storage tank and the recycling tank, wherein one end of the vacuum tube is communicated with the cavity above the couplant in the water storage tank, the other end of the vacuum tube is connected with the atmosphere, one end of the recycling tube is positioned in the couplant in the recycling tank, the other end of the recycling tube is communicated with the cavity above the couplant in the water storage tank, when the vacuum pump works, the cavity above the couplant in the water storage tank forms negative pressure, and the couplant in the recycling tank enters the water storage tank through the recycling tube.
2. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 1, wherein: the couplant supply part comprises a supply pipe and a couplant pump arranged on the supply pipe, one end of the supply pipe is connected in the water storage tank, and the other end of the supply pipe is connected to the probe.
3. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 2, wherein: the supply pipe is also provided with a pressure regulating valve and a pressure safety valve, and the pressure regulating valve is connected with a pressure relief pipe connected to the water storage tank.
4. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 2, wherein: the coupling agent pump is characterized in that the connecting end of the supply pipe and the water storage tank is a water inlet end of the supply pipe, the other end of the supply pipe is a water outlet end of the supply pipe, and the water inlet end of the supply pipe, the coupling agent pump, the pressure safety valve, the pressure regulating valve and the water outlet end of the supply pipe are sequentially arranged.
5. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 1, wherein: the couplant recovery and supply part comprises a vacuum pressure sensor which is arranged on the side wall of the upper end part of the water storage tank and is positioned above the couplant in the water storage tank.
6. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 1, wherein: and when the vacuum degree in the cavity above the coupling agent in the water storage tank is too high, the vacuum safety valve is opened to enable the branch pipe to be communicated with atmosphere supplementary air to enter the vacuum pump.
7. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 1, wherein: the device comprises a water storage tank and is characterized in that a first floating ball switch, a second floating ball switch, a third floating ball switch and a fourth floating ball switch are sequentially arranged on the side wall of the water storage tank from top to bottom, the first floating ball switch is used for sending a couplant overfilling signal, the second floating ball switch is used for sending a couplant overfilling signal, the third floating ball switch displays the normal working liquid level of the couplant, and the fourth floating ball switch is used for sending a couplant shortage signal.
8. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 4, wherein: and a drain valve is arranged between the water inlet end of the supply pipe and the couplant pump.
9. The nuclear power pipeline detection micro-coupling water supply and recovery system as claimed in claim 1, wherein: the system also comprises a supplement pipe and a water supply valve, wherein the supplement pipe is used for supplementing the couplant in the automatic phase water storage tank after the couplant is consumed, and the water supply valve is arranged on the supplement pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830335.6A CN113533536A (en) | 2021-07-22 | 2021-07-22 | Nuclear power pipeline detection trace coupling water supply and recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110830335.6A CN113533536A (en) | 2021-07-22 | 2021-07-22 | Nuclear power pipeline detection trace coupling water supply and recovery system |
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| Publication Number | Publication Date |
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| CN113533536A true CN113533536A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110830335.6A Pending CN113533536A (en) | 2021-07-22 | 2021-07-22 | Nuclear power pipeline detection trace coupling water supply and recovery system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376885A (en) * | 2013-08-12 | 2015-02-25 | 中核核电运行管理有限公司 | Recycling device of light water coupling agent for supersonic inspection on heat transfer branch pipe of heavy water reactor power station |
| CN104849354A (en) * | 2015-05-20 | 2015-08-19 | 中广核检测技术有限公司 | Omega welding seam ultrasonic scanning water circulating system for CRDM (control rod driving mechanism) |
| CN104992737A (en) * | 2015-05-20 | 2015-10-21 | 中广核检测技术有限公司 | Ultrasonic inspection apparatus of welds of CEPR nuclear power station control rod driving mechanism |
| CN110530976A (en) * | 2019-08-22 | 2019-12-03 | 中国电力科学研究院有限公司 | A kind of insulation board supersonic detection device |
| CN112526003A (en) * | 2020-11-30 | 2021-03-19 | 合肥工业大学 | Automatic pouring and recycling device and method for couplant of ultrasonic probe |
-
2021
- 2021-07-22 CN CN202110830335.6A patent/CN113533536A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376885A (en) * | 2013-08-12 | 2015-02-25 | 中核核电运行管理有限公司 | Recycling device of light water coupling agent for supersonic inspection on heat transfer branch pipe of heavy water reactor power station |
| CN104849354A (en) * | 2015-05-20 | 2015-08-19 | 中广核检测技术有限公司 | Omega welding seam ultrasonic scanning water circulating system for CRDM (control rod driving mechanism) |
| CN104992737A (en) * | 2015-05-20 | 2015-10-21 | 中广核检测技术有限公司 | Ultrasonic inspection apparatus of welds of CEPR nuclear power station control rod driving mechanism |
| CN110530976A (en) * | 2019-08-22 | 2019-12-03 | 中国电力科学研究院有限公司 | A kind of insulation board supersonic detection device |
| CN112526003A (en) * | 2020-11-30 | 2021-03-19 | 合肥工业大学 | Automatic pouring and recycling device and method for couplant of ultrasonic probe |
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