CN109078931A - The dynamic simulation tester and application method of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning - Google Patents
The dynamic simulation tester and application method of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning Download PDFInfo
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- CN109078931A CN109078931A CN201810878181.6A CN201810878181A CN109078931A CN 109078931 A CN109078931 A CN 109078931A CN 201810878181 A CN201810878181 A CN 201810878181A CN 109078931 A CN109078931 A CN 109078931A
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- high temperature
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- 238000004140 cleaning Methods 0.000 title claims abstract description 131
- 239000000126 substance Substances 0.000 title claims abstract description 51
- 238000005094 computer simulation Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000007797 corrosion Effects 0.000 claims abstract description 34
- 238000005260 corrosion Methods 0.000 claims abstract description 34
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000005518 electrochemistry Effects 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000006056 electrooxidation reaction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 238000011156 evaluation Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
Abstract
A kind of dynamic simulation tester and application method of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning, which includes: cleaning water tank, for storing chemical cleaning reagent；Circulating pump, for providing the circulation power of dynamic simulation tester；Electromagnetic flowmeter cleans flow velocity for measuring in the high temperature gas cooled reactor nuclear power unit secondary circuit metal tube；Pipe sample clamping device, the high temperature gas cooled reactor nuclear power unit secondary circuit metal tube sample for serial or parallel connection cleaning different tube diameters unlike material；The online corrosion measuring device of electrochemistry, for monitoring the high temperature gas cooled reactor nuclear power unit secondary circuit metal tube sample corrosion rate in chemical cleaning dynamic simulation test on-line；Electric heater unit, for heating the chemical cleaning reagent to cleaning temperature；The invention also discloses the application methods of the device；Evaluation cleaning corrosion and cleaning effect under the conditions of close to Practical Project of the invention, the test data of acquisition is more accurate and has directive function to engineer application.
Description
Technical field
The invention belongs to high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning technique fields, and in particular to a kind of High Temperature Gas
The dynamic simulation tester and application method of cold dome nuclear power unit secondary circuit chemical cleaning.
Background technique
High temperature gas cooled reactor is Generation Ⅳ, is the advanced heap-type with inherent safety, in power generation, heat supply, system
The fields such as hydrogen, sea water desalination have broad application prospects.
Compared with compacted clay liners, high temperature gas cooled reactor secondary side outlet vapor pressure and temperature is respectively reached
14.3MPa, 570 DEG C, much higher than presurized water reactor 6.71MPa, 283 DEG C, material grade is also higher；Secondly, high temperature gas cooled reactor steam
Generator is coil arrangement, extremely stringent to water quality requirement without blowdown apparatus.Therefore, the system clean pair before unit puts into operation
The operation of unit safety economic stability is most important.
Clean method of the chemical cleaning as systems such as conventional thermal power plant boiler, superheaters has technical maturity, is easy to grasp
Make, the advantages that cleaning effect is good, is for the clean prefered method of secondary circuit.But high temperature gas cooled reactor nuclear power unit secondary circuit
System complex, pipe material type is more and caliber difference is big, needs that cleaning effect and corrosion control is unfolded before chemical cleaning
Experimental study.Currently, Laboratory Clean test mostly uses static or small-sized dynamic testing equipment, adjusting can not effectively be monitored by having
Cleaning flow velocity can not simulate various material, the series connection of different tube diameters pipe sample and cleaning in parallel, cannot achieve in cleaning process and corrode
The shortcomings that on-line monitoring.
Summary of the invention
In order to overcome the above problem of the existing technology, the purpose of the present invention is to provide a kind of high temperature gas cooled reactor nuclear powers
The dynamic simulation tester and application method of unit secondary circuit chemical cleaning, the experimental rig is reliable and is easily achieved, can
On-line corrosion monitoring in the series connection of different tube diameters heat exchanger tube and cleaning in parallel and cleaning process is simulated, apparatus of the present invention are more accurate
Evaluation cleaning corrosion and cleaning effect under the conditions of close to Practical Project, the test data of acquisition is more accurate and answers engineering
With with directive function.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of dynamic simulation tester of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning, the secondary circuit chemistry
The dynamic simulation tester of cleaning includes:
Water tank 1 is cleaned, for storing chemical cleaning reagent；
Circulating pump 2, for providing the circulation power of chemical cleaning dynamic simulation tester；
Electromagnetic flowmeter 3 cleans flow velocity for measuring in the high temperature gas cooled reactor nuclear power unit secondary circuit metal tube；
Pipe sample clamping device 4, quantity is multiple, for simulating the High Temperature Gas of serial or parallel connection cleaning different tube diameters unlike material
Cold dome nuclear power unit secondary circuit cleans metal tube sample；
The online corrosion measuring device of electrochemistry, it is described high temperature gas-cooled for being monitored on-line in chemical cleaning dynamic simulation test
Heap nuclear power unit secondary circuit metal tube sample corrosion rate；
Electric heater unit, for heating the chemical cleaning reagent to cleaning temperature；
It is provided with the first shut-off valve K1 of discharge chemical cleaning reagent on the cleaning water tank 1 and adds into cleaning water tank 1
Enter the second shut-off valve K2 of chemical cleaning reagent；2 entrance of circulating pump is arranged third shut-off valve K3, and with the ejected wash water
The outlet of case 1 is connected using stainless steel tube, fourth shut-off valve K4 of the outlet of circulating pump 2 setting for control loop pump self-loopa, and
It is connect with cleaning 1 entrance of water tank using stainless steel tube；The electromagnetic flowmeter 3 is installed on the outlet of circulating pump 2, multiple pipe samples folder
Hold 4 entrance of device and the online corrosion measuring device entrance of electrochemistry, and electromagnetic flowmeter 3 and ejected wash water in the outlet of circulating pump 2
5th shut-off valve K5 is set between 1 entrance of case, the 6th shut-off valve K6, the 7th is respectively set before the electromagnetic flowmeter 3 at other positions
Shut-off valve K7, the 8th shut-off valve K8 and the 9th shut-off valve K9, for adjusting each cleaning metal tube sample flow；The multiple pipe sample folder
It holds on the pipeline after the electromagnetic flowmeter 3 and the 5th shut-off valve K5 of the outlet of circulating pump 2 is arranged in device 4, and is arranged in parallel；It is described
The tenth shut-off valve K10 of shut-off valve, the 11st is respectively set in pipe sample clamping device 4 and the online corrosion measuring device outlet of electrochemistry
Shut-off valve K11, the 12nd shut-off valve K12 and the 13rd shut-off valve K13 are isolated to cleaning metal tube sample is not involved in；Pass through
Control the 6th shut-off valve K6, the 7th shut-off valve K7, the 8th shut-off valve K8, the 9th shut-off valve K9, the tenth shut-off valve K10, the 11st
The string on and off to control cleaning metal tube sample of shut-off valve K11, the 12nd shut-off valve K12 and the 13rd shut-off valve K13
Connection or cleaning in parallel.
The online corrosion measuring device of electrochemistry includes the corroding electrode 5 being connected and electrochemical corrosion measuring instrument 6, institute
Stating corroding electrode 5 is that cleaned metal tube sample welds copper conductor, carries out online corrosion measurement using bipolar electrode system.
The electric heater unit includes thermocouple 7, heat tape 8 and temperature controller 9, and the thermocouple 7 is installed on the 13rd
On pipeline before shut-off valve K13, the heat tape 8 is installed between the 13rd shut-off valve K13 and cleaning water tank 1.
The circulating pump 2 can acid-alkali-corrosive-resisting, metered flow be 5t/h~20t/h, rated head be 15m~30m.
The pipe sample clamping device 4 uses flanged joint, clamps caliber range 30~Ф of Ф 80mm.
The application method of the dynamic simulation tester of the high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning, it is first
First, pipe sample clamping device 4 installs corresponding size and cleans metal tube sample, and production corroding electrode 5 is installed on electrochemistry and corrodes survey online
Device is measured, the second shut-off valve K2 is opened to cleaning water tank 1 and chemical cleaning reagent is added, opens third shut-off valve K3, the 4th cut-off
Valve K4 and the 5th shut-off valve K5, closes other shut-off valves, starts circulating pump 2, the 6th shut-off valve K6 of control, the 7th shut-off valve K7,
8th shut-off valve K8, the 9th shut-off valve K9, the tenth shut-off valve K10, the 11st shut-off valve K11, the 12nd shut-off valve K12 and the tenth
The serial or parallel connection cleaning on and off to control cleaning metal tube sample of three shut-off valve K13, the 5th shut-off valve K5 of adjusting,
The aperture of 6th shut-off valve K6, the 7th shut-off valve K7, the 8th shut-off valve K8 and the 9th shut-off valve K9 control corresponding electromagnetic flowmeter
3 cleaning flows start electric heater unit, heating chemical cleaning reagent to predetermined temperature passes through 9 controlization of temperature controller to predetermined value
Cleaning reagent temperature is learned to stablize；Start electrochemical corrosion measuring instrument 6 and carries out on-line measurement.
Technical solution provided by the invention has the following beneficial effects:
The present invention provides a kind of dynamic simulation testers of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning, should
Device has pipe sample clamping device, which passes through pipe sample clamping device
Two sides shut-off valve controls cleaning pipe sample circulating path, controls cleaning solution temperature to setting value by electric heater unit, passes through electromagnetism
Flowmeter and each pipe sample of cut-off valve regulation clean flow velocity, are being set with the online corrosion measuring device real-time monitoring cleaning pipe sample of electrochemistry
Surely the corrosion rate under flow velocity is cleaned, it is possible thereby to obtain cleaning effect and material corrosion evaluation as a result, providing through the invention
Above-mentioned technical proposal, on-line corrosion monitoring in the series connection of different tube diameters heat exchanger tube and cleaning in parallel and cleaning process can be simulated,
Cleaning effect and material corrosion condition are more accurately evaluated under the conditions of close to Practical Project.
Detailed description of the invention
Fig. 1 is the dynamic simulation test of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning provided in an embodiment of the present invention
Schematic device.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " typically refers to
With reference to the upper and lower, left and right of attached drawing meaning.
High temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning needs will strict control corruption while guaranteeing cleaning effect
Lose rate, high temperature gas cooled reactor nuclear power unit secondary circuit is related to various material, a variety of calibers, in cleaning process velocity in pipes difference compared with
Greatly, and there are the series connection and parallel connection of different pipe samples.
The cleaning effect and corrosion rate of pipe sample are by cleansing medium, cleaning temperature, the shadow for cleaning flow velocity, corrosion inhibiter type
It rings, in order to carry out experimental study for these factors, to instruct live practical operation, the present embodiment provides a kind of high temperature gas-cooled
The dynamic simulation tester and application method of heap nuclear power unit secondary circuit chemical cleaning, refering to fig. 1, simulation test device packet
It includes: cleaning water tank 1, for storing chemical cleaning reagent；Circulating pump 2, for providing the circulation power of dynamic simulation tester；
Electromagnetic flowmeter 3 cleans flow velocity for measuring in the high temperature gas cooled reactor nuclear power unit secondary circuit metal tube；Pipe sample clamping device
4, the high temperature gas cooled reactor nuclear power unit secondary circuit metal tube sample for serial or parallel connection cleaning different tube diameters unlike material；Electrochemistry
Online corrosion measuring device is returned for monitoring the high temperature gas cooled reactor nuclear power unit two in chemical cleaning dynamic simulation test on-line
Road metal tube sample corrosion rate；Electric heater unit, for heating the chemical cleaning reagent to cleaning temperature.
It is provided with the first shut-off valve K1 of discharge chemical cleaning reagent on the cleaning water tank 1 and adds into cleaning water tank 1
Enter the second shut-off valve K2 of chemical cleaning reagent；2 entrance of circulating pump is arranged third shut-off valve K3, and with the ejected wash water
The outlet of case 1 is connected using stainless steel tube, fourth shut-off valve K4 of the outlet of circulating pump 2 setting for control loop pump self-loopa, and
It is connect with cleaning 1 entrance of water tank using stainless steel tube；The electromagnetic flowmeter 3 is installed on the outlet of circulating pump 2, multiple pipe samples folder
Hold 4 entrance of device and the online corrosion measuring device entrance of electrochemistry, and electromagnetic flowmeter 3 and ejected wash water in the outlet of circulating pump 2
5th shut-off valve K5 is set between 1 entrance of case, the 6th shut-off valve K6, the 7th is respectively set before the electromagnetic flowmeter 3 at other positions
Shut-off valve K7, the 8th shut-off valve K8 and the 9th shut-off valve K9, for adjusting each cleaning metal tube sample flow；The multiple pipe sample folder
It holds on the pipeline after the electromagnetic flowmeter 3 and the 5th shut-off valve K5 of the outlet of circulating pump 2 is arranged in device 4, and is arranged in parallel；It is described
The tenth shut-off valve K10 of shut-off valve, the 11st is respectively set in pipe sample clamping device 4 and the online corrosion measuring device outlet of electrochemistry
Shut-off valve K11, the 12nd shut-off valve K12 and the 13rd shut-off valve K13 are isolated to cleaning metal tube sample is not involved in；Pass through
Control the 6th shut-off valve K6, the 7th shut-off valve K7, the 8th shut-off valve K8, the 9th shut-off valve K9, the tenth shut-off valve K10, the 11st
The string on and off to control cleaning metal tube sample of shut-off valve K11, the 12nd shut-off valve K12 and the 13rd shut-off valve K13
Connection or cleaning in parallel.
As the preferred embodiment of the present invention, the circulating pump can acid-alkali-corrosive-resisting, metered flow be 5t/h~20t/
H, rated head are 15m~30m.
As the preferred embodiment of the present invention, the pipe sample clamping device 4 uses flanged joint, can clamp caliber range
30~Ф of Ф 80mm.
In order to more fully understand the embodiment of the present invention, below with reference to high temperature gas cooled reactor nuclear power unit two shown in FIG. 1
The specific structure of the dynamic simulation tester of loop chemical cleaning is to series connection cleaning principle provided in this embodiment and simultaneously
Connection cleaning principle is specifically described.
Refering to fig. 1, the working principle of pipe sample series connection cleaning are as follows: pipe sample clamping device 4 installs corresponding size cleaning pipe sample, system
Make corroding electrode 5 and is installed on the online corrosion measuring device of electrochemistry；It opens the second shut-off valve K2 and cleaning examination is added to cleaning water tank 1
Third shut-off valve K3, the 4th shut-off valve K4 and the 5th shut-off valve K5 are opened in agent, close other shut-off valves, start circulating pump 2；So
Afterwards, open the 6th shut-off valve K6, the tenth shut-off valve K10, the 7th shut-off valve K7, the 8th shut-off valve K8, the 12nd shut-off valve K12 and
13rd shut-off valve K13 adjusts the aperture of the 5th shut-off valve K5 and the 6th shut-off valve K6, and control electromagnetic flowmeter cleaning flow is extremely
Predetermined value；Then, start electric heater unit, heating chemical cleaning reagent to predetermined temperature controls chemical cleaning by temperature controller 9
Temperature of reagent is stablized；Start the online corrosion measuring device of electrochemistry and carries out on-line measurement；After cleaning, stop electric heater unit
With the online corrosion measuring device of electrochemistry, stop circulating pump 2, open the first shut-off valve K1, discharges chemical cleaning reagent.
With continued reference to Fig. 1, the working principle of pipe sample parallel connection cleaning are as follows: pipe sample clamping device 4 installs corresponding size cleaning pipe
Sample, production corroding electrode 5 are installed on the online corrosion measuring device of electrochemistry；The second shut-off valve K2 is opened to be added to cleaning water tank 1
Cleaning reagent opens third shut-off valve K3, the 4th shut-off valve K4 and the 5th shut-off valve K5, closes other shut-off valves, starting circulation
Pump 2；Then, the 6th shut-off valve K6, the 7th shut-off valve K7, the 8th shut-off valve K8, the 9th shut-off valve K9, the tenth shut-off valve are opened
K10, the 11st shut-off valve K11, the 12nd shut-off valve K12 and the 13rd shut-off valve K13 adjust the 5th shut-off valve K5, the 6th section
It is clear to control corresponding electromagnetic flowmeter 3 for the only aperture of valve K6, the 7th shut-off valve K7, the 8th shut-off valve K8 and the 9th shut-off valve K9
Flow is washed to predetermined value；Then, start electric heater unit, heating chemical cleaning reagent to predetermined temperature is controlled by temperature controller 9
Chemical cleaning temperature of reagent is stablized；Start electrochemical corrosion measuring instrument 6 and carries out on-line measurement；After cleaning, stop electric heating
Device and the online corrosion measuring device of electrochemistry stop circulating pump 2, open the first shut-off valve K1, discharge chemical cleaning reagent.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
It, can be with various simple variants of the technical solution of the present invention are made in the range of the technology design of invention.Including each particular technique
Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No further explanation will be given.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention
Protection scope.
Claims (6)
1. a kind of dynamic simulation tester of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning, which is characterized in that described
The dynamic simulation tester of secondary circuit chemical cleaning includes:
It cleans water tank (1), for storing chemical cleaning reagent；
Circulating pump (2), for providing the circulation power of chemical cleaning dynamic simulation tester；
Electromagnetic flowmeter (3) cleans flow velocity for measuring in the high temperature gas cooled reactor nuclear power unit secondary circuit metal tube；
Pipe sample clamping device (4), quantity is multiple, for simulating the high temperature gas-cooled of serial or parallel connection cleaning different tube diameters unlike material
Heap nuclear power unit secondary circuit cleans metal tube sample；
The online corrosion measuring device of electrochemistry, for monitoring the high temperature gas-cooled core in chemical cleaning dynamic simulation test on-line
Motor group secondary circuit metal tube sample corrosion rate；
Electric heater unit, for heating the chemical cleaning reagent to cleaning temperature；
It is described cleaning water tank (1) on be provided with discharge chemical cleaning reagent the first shut-off valve (K1 and to cleaning water tank (1) in plus
Enter the second shut-off valve (K2) of chemical cleaning reagent；Third shut-off valve (K3) is arranged in circulating pump (2) entrance, and with it is described clear
Water tank (1) outlet is connected using stainless steel tube, fourth cut-off of circulating pump (2) the outlet setting for control loop pump self-loopa
Valve (K4), and connect with cleaning water tank (1) entrance using stainless steel tube；The electromagnetic flowmeter (3) is installed on circulating pump (2)
Outlet, multiple pipe sample clamping device (4) entrances and the online corrosion measuring device entrance of electrochemistry, and in circulating pump (2) outlet
5th shut-off valve (K5), the electromagnetic flowmeter (3) at other positions are set between electromagnetic flowmeter (3) and cleaning water tank (1) entrance
Before the 6th shut-off valve (K6), the 7th shut-off valve (K7), the 8th shut-off valve (K8) and the 9th shut-off valve (K9) is respectively set, for adjusting
Save each cleaning metal tube sample flow；The electromagnetic flowmeter exported in circulating pump (2) is arranged in the multiple pipe sample clamping device (4)
(3) it and on the pipeline after the 5th shut-off valve (K5), and is arranged in parallel；The pipe sample clamping device (4) and electrochemistry are corroded online
The tenth shut-off valve (K10) of shut-off valve, the 11st shut-off valve (K11), the 12nd shut-off valve (K12) is respectively set in measuring device outlet
With the 13rd shut-off valve (K13), it is isolated to cleaning metal tube sample is not involved in；By controlling the 6th shut-off valve (K6), the 7th
Shut-off valve (K7), the 8th shut-off valve (K8), the 9th shut-off valve (K9), the tenth shut-off valve (K10), the 11st shut-off valve (K11),
The serial or parallel connection on and off to control cleaning metal tube sample of 12 shut-off valves (K12) and the 13rd shut-off valve (K13)
Cleaning.
2. the dynamic simulation tester of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning according to claim 1,
It is characterized in that, the online corrosion measuring device of electrochemistry includes the corroding electrode (5) being connected and electrochemical corrosion measurement
Instrument (6), the corroding electrode (5) are that cleaned metal tube sample welds copper conductor, carry out online corrosion using bipolar electrode system and survey
Amount.
3. the dynamic simulation tester of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning according to claim 1,
It is characterized in that, the electric heater unit includes thermocouple (7), heat tape (8) and temperature controller (9), thermocouple (7) peace
Loaded on the pipeline before the 13rd shut-off valve (K13), the heat tape (8) is installed on the 13rd shut-off valve (K13) and cleaning
Between water tank (1).
4. the dynamic simulation tester of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning according to claim 1,
It is characterized in that, the circulating pump (2) can acid-alkali-corrosive-resisting, metered flow be 5t/h~20t/h, rated head be 15m~
30m。
5. the dynamic simulation tester of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning according to claim 1,
It is characterized in that, the pipe sample clamping device (4) uses flanged joint, caliber range 30~Ф of Ф 80mm is clamped.
6. the dynamic simulation test of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning described in any one of claim 1 to 5
The application method of device, which is characterized in that firstly, pipe sample clamping device (4) installation corresponding size cleans metal tube sample, production is rotten
Erosion electrode (5) is installed on the online corrosion measuring device of electrochemistry, opens the second shut-off valve (K2) to cleaning water tank (1) and chemistry is added
Cleaning reagent opens third shut-off valve (K3), the 4th shut-off valve (K4) and the 5th shut-off valve (K5), closes other shut-off valves, open
Dynamic circulating pump (2), the 6th shut-off valve (K6) of control, the 7th shut-off valve (K7), the 8th shut-off valve (K8), the 9th shut-off valve (K9),
The opening of tenth shut-off valve (K10), the 11st shut-off valve (K11), the 12nd shut-off valve (K12) and the 13rd shut-off valve (K13)
The serial or parallel connection that cleaning metal tube sample is controlled with closing cleans, and adjusts the 5th shut-off valve (K5), the 6th shut-off valve (K6), the
(aperture of K9 controls corresponding electromagnetic flowmeter (3) cleaning stream for seven shut-off valves (K7), the 8th shut-off valve (K8) and the 9th shut-off valve
Amount starts electric heater unit, heating chemical cleaning reagent to predetermined temperature is clear by temperature controller (9) control chemistry to predetermined value
Temperature of reagent is washed to stablize；Start electrochemical corrosion measuring instrument (6) and carries out on-line measurement.
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| CN201810878181.6A CN109078931A (en) | 2018-08-03 | 2018-08-03 | The dynamic simulation tester and application method of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning |
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| CN201810878181.6A CN109078931A (en) | 2018-08-03 | 2018-08-03 | The dynamic simulation tester and application method of high temperature gas cooled reactor nuclear power unit secondary circuit chemical cleaning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110119878A (en) * | 2019-04-09 | 2019-08-13 | 华能山东石岛湾核电有限公司 | A kind of risk-informed decision-making technique suitable for the provisional change of specific power plant |
| CN110132831A (en) * | 2019-05-30 | 2019-08-16 | 华能山东石岛湾核电有限公司 | A kind of high temperature gas cooled reactor secondary circuit Dynamic Water chemical corrosion test research device and application method |
| CN110132834A (en) * | 2019-05-30 | 2019-08-16 | 华能山东石岛湾核电有限公司 | A kind of high temperature gas cooled reactor secondary circuit Dynamic Water chemical attack electrochemical research electrode system and test method |
| CN112129018A (en) * | 2020-10-19 | 2020-12-25 | 中国科学院理化技术研究所 | Combined cold accumulator and liquid air energy storage system |
| CN112466488A (en) * | 2020-11-13 | 2021-03-09 | 南华大学 | CPR1000 nuclear power unit SG simulation device and method |
| CN113130106A (en) * | 2021-03-05 | 2021-07-16 | 华能山东石岛湾核电有限公司 | New fuel processing system and method for high-temperature gas cooled reactor |
| CN113843206A (en) * | 2021-09-23 | 2021-12-28 | 西安热工研究院有限公司 | Chemical cleaning system and method for high-temperature high-pressure experimental device |
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