CN104485141B - Calibration device for measurement parameters of nuclear power station boron concentration measurement system - Google Patents
Calibration device for measurement parameters of nuclear power station boron concentration measurement system Download PDFInfo
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- CN104485141B CN104485141B CN201410755491.0A CN201410755491A CN104485141B CN 104485141 B CN104485141 B CN 104485141B CN 201410755491 A CN201410755491 A CN 201410755491A CN 104485141 B CN104485141 B CN 104485141B
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/02—Devices or arrangements for monitoring coolant or moderator
- G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
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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 discloses a calibration device for measurement parameters of a nuclear power station boron concentration measurement system. The calibration device comprises a calibration water tank, a calibration control box, a cabinet, a calibration test loop, an electric heating device and a flowmeter, wherein the calibration water tank, the calibration control box and the calibration test loop are installed in the cabinet, the electric heating device and the flowmeter are installed on the calibration test loop, the calibration water box is connected with the calibration test loop, and the calibration test loop is connected with the calibration control box. The calibration device is long in service life, convenient to use and relatively high in calibration efficiency and accuracy.
Description
Technical field
The present invention relates to nuclear equipment field, more particularly, to a kind of calibration cartridge of nuclear power station boron concentration measurement system measurement parameter
Put.
Background technology
Nuclear power plant's presurized water reactor is the reactor that boracic runs, and its moderator and coolant are boracic aqueous solutions.Boron -10 conduct
Neutron poison, its pressurized-water reactor nuclear power plant operation with control in play an important role, domestic at present secondary or secondary plus nuclear power
Station has been respectively mounted the system for on-line measurement main coolant loop boron -10 concentration, referred to as boron concentration measurement system.Boron concentration is surveyed
The measurement parameter of amount system needs to be calibrated before system puts into operation, and in-service nuclear power station needs periodically to boron measurement of concetration
The measurement parameter of system is modified, so that it is guaranteed that the reliability of boron concentration measurement system and certainty of measurement, exactly for nuclear power
The safe operation stood provides data to support.
According to existing domestic and international nuclear power station operation program, need to try by calibration before boron concentration measurement system puts into operation
Test and boron concentration measurement system measurement parameter is calibrated and revises.Daya Bay nuclear power plant introduces French dss company boron concentration and surveys
Amount system, carries out calibration test currently with a temperature chamber to measuring system, and then adjusting measuring parameters.Daya Bay nuclear power plant
The device that the temperature chamber being used is not specific to boron concentration measurement system calibration test and develops, uses under weakly acidic condition
Short life and mobile inconvenience, the precision electric motor in thermostat does not allow the presence of boron crystalline particle, in-convenience in use it is impossible to having
Imitate completes calibration test.It is thus desirable to design has the boron dense meter calibrating device of independent intellectual property right, it is boron measurement of concetration system
System calibration test provides the boron strength solution of design temperature and flow, thus optimizing and revise the measurement ginseng of boron concentration measurement system
Number.
In sum, during present inventor's inventive technique scheme in realizing the embodiment of the present application, in discovery
At least there is following technical problem in technology of stating:
Conventionally, as there is no the special device developed for boron concentration measurement system calibration test, profit
With a temperature chamber, calibration test is carried out to measuring system, and existing calibrating installation service life under weakly acidic condition is short and moves
Dynamic inconvenience it is impossible to effectively complete calibration test, so, calibrating installation of the prior art exist service life short, mobile not
Just, calibration efficiency and the relatively low technical problem of accuracy rate.
Content of the invention
The invention provides a kind of calibrating installation of nuclear power station boron concentration measurement system measurement parameter, solve prior art
In calibrating installation have that service life is short, mobile inconvenience, calibration efficiency and the relatively low technical problem of accuracy rate be it is achieved that nuclear power
Calibrating installation long service life, easy to use, calibration efficiency and the accuracy rate of boron concentration measurement system measurement parameter of standing are higher, and
And quick can be connected formation calibration test loop with boron concentration measurement system, can automatically and manually calibrating installation be entered
Row controls.
For solving above-mentioned technical problem, the embodiment of the present application provides a kind of nuclear power station boron concentration measurement system measurement parameter
Calibrating installation, described device includes:
Calibration water tank, calibration control chamber, rack, calibration test loop, electric heater unit, effusion meter, wherein, described calibration
Water tank, calibration control chamber, calibration test loop are installed in described rack, and described electric heater unit, described effusion meter are installed
On described calibration test loop, described calibration water tank is connected with described calibration test loop, described calibration test loop and institute
State calibration control chamber to connect.
Wherein, described calibration water tank is connected with described nuclear power station boron concentration measurement system, sets in described calibration test loop
There is circulating pump, described circulating pump provides power for B solution in described calibration test loop interior circulation.
Wherein, described electric heater unit is specially the electric heater unit based on pid control principle, and described electric heater unit is used
Temperature adjustment and control in the circulation solution realized in described calibration test loop.
Wherein, described hygrosensor is used for the temperature in calibration test loop described in on-line measurement.
Wherein, it is provided with flow control valve, effusion meter in described calibration test loop, described flow control valve is used for adjusting back
Liquid inventory in road, described effusion meter is used for the liquid inventory in calibration test loop described in real-time monitoring.
Wherein, described calibration test loop also includes: sampling adapter, and described sampling adapter is used for obtaining circulation solution, leads to
Cross and contrast the solution boron concentration that described boron concentration measurement system obtains, the measurement ginseng of calibration and the described boron concentration measurement system of correction
Number.
Wherein, described calibration test loop specifically includes: water inlet adapter, water outlet pipeline, sampling valve, sampling adapter, flow
Regulating valve, hygrosensor, back with water inlet line, drain valve, castor, seal nipple, circulating pump, described device also includes: motor cabinet,
Earth stud, rack beam, control box bracket.
Wherein, described device specifically includes:
Rack, calibration control chamber, calibration water tank, water inlet adapter, water outlet pipeline, sampling valve, sampling adapter, Flow-rate adjustment
Valve, hygrosensor, back with water inlet line, drain valve, castor, seal nipple, circulating pump, motor cabinet, earth stud, effusion meter, machine
Cabinet beam, electric heater unit, control box bracket；
Described rack, described calibration control chamber, described calibration water tank, water inlet adapter, water outlet pipeline, sampling valve, sampling connect
Pipe, flow control valve, hygrosensor, back with water inlet line, drain valve, castor, seal nipple, circulating pump, motor cabinet, ground connection spiral shell
Bolt, described effusion meter, rack beam, described electric heater unit, control box bracket；
Wherein, described calibration control chamber is placed in described rack, and described calibration control chamber is fixed on described control box bracket
On, described control box bracket is welded on described rack inwall.Described calibration water tank bottom is welded on the crossbeam of described rack, institute
The staving upper surface stating calibration water tank is concordant with the upper surface of described rack and weld, described in the vertical beam of described rack beam is welded on
Side plate of machine cabinet inwall；The circular hole that described calibration water tank staving is stretched in described water inlet adapter one end is welded, described water inlet adapter
The other end stretches out outside described rack by the perforate of described cabinet sidewalls, and described water inlet adapter mouth is provided with snap joint, described
Water outlet pipeline one end is connected by the described seal nipple of customization with described circulating pump, and the other end is opened by described cabinet sidewalls
Described rack is stretched out in hole, and described water outlet pipeline is provided with snap joint；Pass through a standard threeway from the centre of described water outlet pipeline
Draw the first by-pass line, bypass for sampling, described sampling valve is arranged on described first by-pass line, described first bypass pipe
The other end in road stretches out described rack by the perforate of described cabinet sidewalls, is taking described in the welding of the exit of described by-pass line
Sample is taken over；Described flow is calculated as standard device, is arranged on described circulating pump side, root on described water outlet pipeline by standard flange
Open a square hole according to described flowmeter meter position in described cabinet front plate；Described back with water inlet line one end and described circulating pump pass through
The described seal nipple of customization connects, and the other end of described back with water inlet line is weldingly fixed on described calibration water tank bottom, and described
The water outlet circular hole cooperation of the bottom of calibration water tank, passes through a standard threeway in the centre of described back with water inlet line and draws the second bypass pipe
Road, is draining bypass, and described drain valve is arranged on described second by-pass line, and institute is passed through in one end of described second by-pass line
Described rack is stretched out in the perforate stating cabinet sidewalls；Described hygrosensor is arranged on described back with water inlet line by a custom card button
On vertical pipeline, the cable of described hygrosensor passes through the temperature signal hole described school of entrance of described calibration control chamber rear board
In quasi- control chamber；Described motor cabinet is arranged on described bottom plate of machine cabinet, the installing hole on described motor cabinet and described bottom plate of machine cabinet
On installing hole manufacture, described circulating pump is arranged on described motor cabinet by bolt, nut, and the cable of controlling pump start and stop passes through
The pumping source hole of described calibration control chamber rear board enters described calibration control chamber；The heating element heater of described electric heater unit passes through
Described calibration water tank areole stretches in water tank, and component holder is welded with described calibration water tank staving, the electricity of described electric heater unit
Source line enters described calibration control chamber by the heating element heater power hole of described calibration control chamber rear board；Described earth stud peace
It is contained in the circular port below described rack left plate.
Wherein, the perpendicular depth of beam of described rack beam is identical with the height of described rack inner chamber, the width of described rack beam crossbeam
Degree is identical with the width of described rack inner chamber.
Wherein, described device is specially the import and export snap joint utilizing hose connection described calibrating installation and boron concentration is surveyed
Amount system, forms the device of calibration test circuit system.
Wherein, described device has also carried out Electric Control Design, to described circulating pump start and stop and described heating element heater break-make
Control, realize testing liquid's reciprocation cycle at a temperature of setting.
The one or more technical schemes providing in the embodiment of the present application, at least have the following technical effect that or advantage:
Due to employing import and export snap joint and the boron concentration measurement system using hose connection calibrating installation, form school
Quasi- test loop system, the solution of measured known boron concentration is loaded calibration water tank, starts circulating pump, makes B solution in examination
Test loop interior circulation, and realize temperature adjustment and the control of circulation solution based on the electric heater unit of pid control principle, utilize
Hygrosensor in loop can on-line measurement calibration test loop temperature, the solution stream in flow control valve energy regulating loop
Amount, and the effusion meter real-time monitoring liquid inventory by being arranged on device inner looping, by sampling the circulation of bend pipe direct access
Solution, by contrasting the solution boron concentration that boron concentration measurement system obtains, calibration and the measurement ginseng revising boron concentration measurement system
Number, after off-test, opens the technological means that solution is discharged by drain valve, so, efficiently solve calibration of the prior art
Device has that service life is short, mobile inconvenience, calibration efficiency and the relatively low technical problem of accuracy rate, and then achieve nuclear power station boron
The calibrating installation long service life of concentration measurement system measurement parameter, easy to use, calibration efficiency and accuracy rate are higher, and energy
Enough energy are quick to be connected formation calibration test loop with boron concentration measurement system, can automatically and manually calibrating installation be controlled
System.
Brief description
Fig. 1 is the front view of the embodiment of the present application one lieutenant colonel's standard apparatus；
Fig. 2 is the top view of the embodiment of the present application one lieutenant colonel's standard apparatus；
Fig. 3 is the sectional view of the embodiment of the present application one lieutenant colonel's standard apparatus；
Fig. 4 is the sectional view of the embodiment of the present application one lieutenant colonel's standard apparatus；
Fig. 5 is the temperature automatic control schematic diagram of the embodiment of the present application one lieutenant colonel's standard apparatus；
Fig. 6 is the electrical apparatus control circuit figure of the embodiment of the present application one lieutenant colonel's standard apparatus；
Wherein, 1- rack, 2- calibrates control chamber, and 3- calibrates water tank, 4- water inlet adapter, 5- water outlet pipeline, 6- sampling valve, 7-
Sampling adapter, 8- flow control valve, 9- hygrosensor, 10- back with water inlet line, 11- drain valve, 12- castor, 13- seal nipple,
14- circulating pump, 15- motor cabinet, 16- earth stud, 17- effusion meter, 18- rack beam, 19- electric heater unit, 20- control chamber props up
Frame.
Specific embodiment
The invention provides a kind of calibrating installation of nuclear power station boron concentration measurement system measurement parameter, solve prior art
In calibrating installation have that service life is short, mobile inconvenience, calibration efficiency and the relatively low technical problem of accuracy rate be it is achieved that nuclear power
Calibrating installation long service life, easy to use, calibration efficiency and the accuracy rate of boron concentration measurement system measurement parameter of standing are higher, and
And quick can be connected formation calibration test loop with boron concentration measurement system, can automatically and manually calibrating installation be entered
Row controls.
Technical scheme during the application is implemented is to solve above-mentioned technical problem.General thought is as follows:
Employ the import and export snap joint using hose connection calibrating installation and boron concentration measurement system, form calibration examination
Test circuit system, the solution of measured known boron concentration is loaded calibration water tank, starts circulating pump, so that B solution is being tested back
Road interior circulation, and realize temperature adjustment and the control of circulation solution based on the electric heater unit of pid control principle, using loop
Interior hygrosensor can on-line measurement calibration test loop temperature, the liquid inventory in flow control valve energy regulating loop,
And the effusion meter real-time monitoring liquid inventory by being arranged on device inner looping, molten by sampling the circulation of bend pipe direct access
Liquid, by contrasting the solution boron concentration that boron concentration measurement system obtains, calibration and the measurement parameter revising boron concentration measurement system,
After off-test, open the technological means that solution is discharged by drain valve, so, efficiently solve calibrating installation of the prior art
Have that service life is short, mobile inconvenience, calibration efficiency and the relatively low technical problem of accuracy rate, and then achieve nuclear power station boron concentration
The calibrating installation long service life of measuring system measurement parameter, easy to use, calibration efficiency and accuracy rate are higher, and being capable of energy
Quickly it is connected formation calibration test loop with boron concentration measurement system, can automatically and manually calibrating installation be controlled.
In order to be better understood from technique scheme, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail.
Embodiment one:
In embodiment one, there is provided a kind of calibrating installation of nuclear power station boron concentration measurement system measurement parameter, refer to
Fig. 1-Fig. 6, described device includes:
Calibration water tank 3, calibration control chamber 2, rack 1, calibration test loop, electric heater unit 19, effusion meter 17, wherein,
Described calibration water tank, calibration control chamber, calibration test loop are installed in described rack, described electric heater unit, described stream
Gauge is arranged on described calibration test loop, and described calibration water tank is connected with described calibration test loop, described calibration test
Loop is connected with described calibration control chamber.
Wherein, in the embodiment of the present application, described calibration water tank is connected with described nuclear power station boron concentration measurement system, described
Calibration test is provided with circulating pump in loop, and described circulating pump provides power for B solution in described calibration test loop interior circulation.
Wherein, in the embodiment of the present application, described electric heater unit is specially the electrical heating dress based on pid control principle
Put, described electric heater unit is used for realizing the temperature adjustment of circulation solution in described calibration test loop and control.
Wherein, in the embodiment of the present application, described hygrosensor is used for the temperature in calibration test loop described in on-line measurement
Degree.
Wherein, in the embodiment of the present application, it is provided with flow control valve, effusion meter, described stream in described calibration test loop
Adjustable valve is used for the liquid inventory in regulating loop, and described effusion meter is used for molten in calibration test loop described in real-time monitoring
Flow quantity.
Wherein, in the embodiment of the present application, described calibration test loop also includes: sampling adapter, and described sampling adapter is used
In obtaining circulation solution, by contrasting the solution boron concentration that described boron concentration measurement system obtains, calibration and the described boron of correction are dense
The measurement parameter of degree measuring system.
Wherein, in the embodiment of the present application, described calibration test loop specifically includes: water inlet adapter, water outlet pipeline, sampling
Valve, sampling adapter, flow control valve, hygrosensor, back with water inlet line, drain valve, castor, seal nipple, circulating pump, described dress
Put and also include: motor cabinet, earth stud, rack beam, control box bracket.
Wherein, in the embodiment of the present application, described device specifically includes:
Rack 1, calibration control chamber 2, calibration water tank 3, water inlet adapter 4, water outlet pipeline 5, sampling valve 6, sampling adapter 7, stream
Adjustable valve 8, hygrosensor 9, back with water inlet line 10, drain valve 11, castor 12, seal nipple 13, circulating pump 14, motor cabinet
15th, earth stud 16, effusion meter 17, rack beam 18, electric heater unit 19, control box bracket 20；
Wherein, described calibration control chamber 2 is placed in described rack 1, and described calibration control chamber 2 is fixed on described sweat box and props up
On frame 20, described control box bracket 20 is welded on described rack 1 inwall.Described calibration water tank 3 bottom welding is in described rack beam
On 18 crossbeam, the staving upper surface of described calibration water tank 3 is concordant with the upper surface of described rack 1 and welds, described rack beam
18 vertical beam is welded on described rack 1 side plate inwall；Described water inlet adapter 4 one end and the described circular hole calibrating water tank 3 staving are joined
Close welding, described water inlet adapter 4 other end stretches out outside described rack 1 by the perforate of described rack 1 side wall, described water inlet adapter
4 mouthfuls are provided with snap joint, and described water outlet pipeline 5 one end and described circulating pump 14 pass through the described seal nipple 13 of customization even
Connect, the other end stretches out described rack 1 by the perforate of described rack 1 side wall, and described water outlet pipeline 5 is provided with snap joint；From
The centre of described water outlet pipeline 5 is passed through a standard threeway and is drawn the first by-pass line, bypasses for sampling, and described sampling valve 11 is installed
On described first by-pass line, the other end of described first by-pass line stretches out institute by the thief hole of described rack 1 side wall
State rack 1, in the exit of described by-pass line welding described sampling adapter 7；Described effusion meter 17 is standard device, by mark
Quasi- flange is arranged on described circulating pump 14 side on described water outlet pipeline 5, according to described effusion meter 17 gauge outfit position in described machine
Cabinet 1 front plate opens a square hole；Described back with water inlet line 10 one end and described circulating pump 14 pass through the described seal nipple 13 of customization even
Connect, the other end of described back with water inlet line 14 is weldingly fixed on described calibration water tank 3 bottom, with the bottom of described calibration water tank 3
Water outlet circular hole coordinates, and passes through a standard threeway in the centre of described back with water inlet line 10 and draws the second by-pass line, is draining bypass,
Described drain valve 11 is arranged on described second by-pass line, and described rack 1 side wall is passed through in one end of described second by-pass line
Osculum stretch out described rack 1；Described hygrosensor 9 is arranged on the vertical of described back with water inlet line 5 by a custom card button
On pipeline, the cable of described hygrosensor enters described calibration in the temperature signal hole of 2 panels after described calibration control chamber
In control chamber 2；Described motor cabinet 15 is arranged on described rack 1 base plate, the installing hole on described motor cabinet and described rack bottom
Installing hole on plate manufactures, and described circulating pump 14 is arranged on described rack 1 inner chamber, the electricity of controlling pump start and stop by bolt, nut
The pumping source hole that cable passes through described calibration control chamber 2 rear board enters described calibration control chamber 2；Described electric heater unit 19 plus
Thermal element stretches in water tank by described calibration water tank 3 areole, and component holder is welded with described calibration water tank 3 staving, described electricity
The power line of heater 19 enters described calibration control chamber by the heating element heater power hole of described calibration control chamber 2 rear board
2；Described earth stud 16 is arranged in the circular port below described rack 1 left plate.
Wherein, in the embodiment of the present application, described rack beam 18 erects the height phase of depth of beam and described rack 1 inner chamber
With the width of described rack beam 18 crossbeam is identical with the width of described rack 1 inner chamber.
Wherein, in the embodiment of the present application, described device is specially the import and export utilizing hose connection described calibrating installation
Snap joint and boron concentration measurement system, form the device of calibration test circuit system.
Wherein, in the embodiment of the present application, described device has also carried out Electric Control Design, to described circulating pump start and stop and
Described heating element heater break-make controls, and realizes testing liquid's reciprocation cycle at a temperature of setting.
Wherein, the operation principle of the device in the embodiment of the present application is particularly as follows: utilize the turnover of hose connection calibrating installation
Outspoken quick coupling and boron concentration measurement system, form calibration test circuit system, and measured known boron strength solution loads school
Quasi- water tank, starts circulating pump, makes B solution in test loop interior circulation, the electric heater unit based on pid control principle is realized following
The temperature adjustment of ring solution and control, using the hygrosensor in loop can on-line measurement calibration test loop temperature, stream
Liquid inventory in adjustable valve energy regulating loop, and the effusion meter real-time monitoring solution stream by being arranged on device inner looping
Amount, by sample bend pipe direct access circulation solution, by contrast boron concentration measurement system obtain solution boron concentration, calibration and
Revise the measurement parameter of boron concentration measurement system, after off-test, adjust drain valve and solution is discharged.
Wherein, in actual applications, illustrate below and the calibrating installation in the embodiment of the present application is introduced, refer to table
1, table 1 is the performance indications of actual device.
Table 1
Wherein, in actual applications, boron concentration measurement system calibrating installation structure includes: rack 1, calibrates control chamber 2, school
Quasi- water tank 3, adapter 4 of intaking, water outlet pipeline 5, sampling valve 6, sample adapter 7, flow control valve 8, hygrosensor 9, water inlet pipe
Line 10, drain valve 11, castor 12, seal nipple 13, circulating pump 14, motor cabinet 15, earth stud 16, effusion meter 17, rack beam
18, electric heater unit 19, control box bracket 20.
Boron concentration measurement system calibrating installation rack profile is rectangular configuration, and material is 0cr18ni9 rustless steel, internal welding
Pick cabinet beam to improve rigidity and the intensity of rack；Calibration water tank capacity about 20l, is welded and fixed with rack, using dye penetrant inspection
Means can check water tank adapter, the welding quality of electrical heating elements seat weld seam；Circulating pump is fixed on school by m10 bolt, nut
In quasi- rack, in order to reduce vibration, devise the motor cabinet of circulating pump；Water-in and water-out pipeline utilizes seal nipple with circulating pump even
Connect, to prevent liquid leakage in circulation, liquid inventory in test loop is adjusted by the cutting ferrule ball valve in pipeline, and using peace
It is contained in the flow of liquid in the effusion meter real-time monitoring loop on water outlet pipeline, import and export pipeline is by 0cr18ni9 stainless steel tube
Bending forms；The support of calibration control chamber is welded in rack, is fixed using bolt and nut connected mode with calibration control chamber, follows
Ring pump start stop switch and temperature control system are all integrated in calibration control chamber；Castor is universal wheel, with auto-lock function, can be real
Show moving freely of calibrating installation；Calibrating installation is connected formation calibration test with boron concentration measurement system by snap joint and returns
Road.
Wherein, in actual applications, the Design of Electrical Controling System of boron concentration measurement system calibrating installation is particularly as follows: electrically
Control system includes circulating pump start and stop and heating element heater break-make are controlled, and realizes testing liquid at the temperature (can arrange) setting
Reciprocation cycle.The start and stop Non-follow control of circulating pump, switch is arranged on the panel of calibration control chamber, and LED lamp is used as following
The display lamp of ring pump start and stop.The break-make control of heating element heater is divided into Non-follow control and automatically controls, and its objective is to realize temperature
Adjust, the display lamp of control mode is provided with respectively on panel.Automatically control (principle such as Fig. 5, circuit such as Fig. 6) and utilize pid
Controller is realized.The input temp t of setting0It is converted into the control parameter of pid, (be may be selected by the break-make controlling heating
500w or 1000w) change solution temperature in water tank, the solution temperature t that in calibrating installation, hygrosensor detects1With setting
Temperature t0Relatively, until both are identical, finally realize automatically controlling of solution temperature.
Wherein, in actual applications, as depicted in figs. 1 and 2, boron concentration measurement system calibrating installation rack is tied for rectangle
Structure, the external shape of cabinet a size of 650mm (wide) * 500mm (deep) * 600mm (high), material is 0cr18ni9 rustless steel, utilizes
Welding forming after the thick corrosion resistant plate bending of 2mm, a direction hole is opened in the front panel upper left corner, for calibrating control chamber pilot hole, middle
Open a square hole, be meter readings hole, rack back door is fixed with rack by hinge, realize the switch at back door, rack top panel
Have a circular port, for calibrating water tank pilot hole, a circular hole is opened on rack left plate top, is calibrating installation main power entrance, machine
Cabinet left plate bottom has a circular hole, and for installing the earth stud of m12, earth stud material is h62, and rack right plate is opened
There are four circular holes, respectively water inlet adapter hole, water outlet pipe hole, sampling adapter hole and drain tube holes, rack bottom panel has 4 respectively
Individual motor cabinet installing hole and 4 × 4 castor installing holes.Castor is universal wheel, and wheel footpath 100mm, with auto-lock function, by 4
M10 is bolted on bottom plate of machine cabinet.
As shown in Figure 3 and Figure 4, rack beam material is 0cr18ni9 rustless steel, using 3mm thickness 0cr18ni9 rustless steel bending
Become steel angle structure, point crossbeam and vertical beam, it is welded into " h " beam structure, rack beam is weldingly fixed in rack, to improve rack
Rigidity and intensity；Calibration water tank includes staving and tank lid, and material is 0cr18ni9 rustless steel, calibrates water tank capacity 20l.Calibration
Water tank bottom is welded with rack beam, plate weld above staving end and rack.Plate weld one ballhead handle, water above tank lid
There is circular hole at case staving bottom, the water inlet end welding with back with water inlet line in rack, and staving side has the component holder assembling of heater
Hole and water inlet adapter pilot hole, water inlet adapter one end and calibration tank weld, rack is stretched out in one end, and end face is provided with and quickly connects
Head, snap joint model ss-qc6, material is 0cr18ni9 rustless steel；Circulating pump is magnetic drive pump, and the material of excessively stream part is
0cr18ni9 rustless steel, motor seat material is cast iron, and the bolt of 4 m10 starts to sequentially pass through motor cabinet, rubber from bottom plate of machine cabinet
Installing hole on pad and circulating pump, is fixed with nut.The on/off of circulating pump is by calibrating opening on control chamber front panel
Close and control, feed cable is connected to circulating pump by calibrating the pumping source hole of control chamber, power supply is 220v/50hz alternating current power supply；
Water-in and water-out pipeline utilize φ 16 0cr18ni9 stainless steel tube bending and forming, water-in and water-out pipeline using customization seal nipple with
Circulating pump connects, to prevent liquid leakage in circulation.Flow control valve is installed in back with water inlet line, regulating valve is cutting ferrule ball valve,
The material of excessively stream part is 0cr18ni9 rustless steel, and back with water inlet line one end is connected by seal nipple with circulating pump, and one end is welded
It is fixed on calibration water tank bottom, draws one side pipeline in the middle of back with water inlet line, drain valve is installed on the other pipeline of here, and drain valve is
Cutting ferrule ball valve, the material of excessively stream part is 0cr18ni9 rustless steel, and the other end of other pipeline stretches out rack, for discharge calibration examination
Test the waste water after end, hygrosensor is arranged on the vertical pipeline of back with water inlet line by a custom card button, detector model
Pt100, its cable passes through calibration and controls the hole of bottom panel to enter in calibration control chamber, to obtain the temperature of B solution in calibration loop
Degree signal.Sampling valve is installed in water outlet pipeline, sampling valve is cutting ferrule ball valve, and the material of excessively stream part is that 0cr18ni9 is stainless
Steel, water outlet pipeline one end is connected by seal nipple with circulating pump, and rack is stretched out in one end, is provided with snap joint, snap joint
Model ss-qc6, material is 0cr18ni9 rustless steel, draws bypass line road in the middle of water outlet pipeline, and sampling valve is arranged on
On this by-pass line, the other end of by-pass line stretches out rack, and in exit welding sampling adapter, sampling adapter material is
0cr18ni9 rustless steel.Effusion meter is arranged on circulating pump side on water outlet pipeline by standard flange, is tested back with on-line monitoring
The flow on road, excessively stream portion of material is 0cr18ni9 rustless steel；The support of calibration control chamber is triangular support structure, and material is
0cr18ni9 rustless steel, upper surface has 4 holes, and support is weldingly fixed on front panel inwall in rack, the upper surface of support with
Front panel calibration control chamber pilot hole lower limb is concordant, and calibration control chamber is propped up using the calibration control chamber that is bolted to of 4 m10
On frame.Calibration control chamber is rectangular configuration, and overall dimensions are 200mm (wide) * 200mm (deep) * 260mm (high), and material is
0cr18ni9 rustless steel, using welding fabrication after 2mm thickness stainless sheet steel bending, temperature control chamber door passes through 2 hinges and temperature
Degree control chamber is fixed, and is provided with triangulation chain, and calibration control chamber back plate has 4 cable aperture, respectively main power hole, temperature
Telltale hole, pumping source hole and heating element heater power hole, and 4 studs of welded and installed, with the control of holding electrical control system
Circuit-board card, calibration control chamber front panel has 5 heating power indicator lamp holes and 3 controlling switch indicator holes, and display lamp is led
Lamp；The heating element heater of heater stretches in calibration water tank, and heating element heater customizes, totally two, and the heating power of is
1000w, the heating power of another is 500w, and heating element heater and component holder are threaded, and feed cable one end is heated with two
Element connects, and another section of cable passes through component holder, enters calibration control chamber, is connected with control circuit board, component holder stretches into school
Quasi- water tank component holder pilot hole, with calibration water tank staving welding.
As shown in Figure 5 and Figure 6, electric control system includes circulating pump start and stop and heating element heater break-make are controlled, and realizes school
Quasi- solution reciprocation cycle under stationary temperature (can arrange).The start and stop Non-follow control of circulating pump, switch is arranged on temperature control
On the panel of case.The break-make control of heating element heater is divided into Non-follow control and automatically controls, and its objective is to realize the regulation of temperature.From
Dynamic control (principle such as Fig. 5, circuit such as Fig. 6) utilizes pid controller to realize.The input temp t of setting0It is converted into the control of pid
Parameter, changes solution temperature in calibration water tank by the break-make (optional 500w or 1000w) controlling heating, and temperature is visited
Survey the solution temperature t that device detects1With setting temperature t0Relatively, until both are identical, finally realize the automatic control of solution temperature
System.The control circuit of pump and heating element heater as shown in figure 4, at circulating pump and heating parallel-connection light-emitting diodes, for referring to
Show the working condition of each element.
Technical scheme in above-mentioned the embodiment of the present application, at least has the following technical effect that or advantage:
Due to employing import and export snap joint and the boron concentration measurement system using hose connection calibrating installation, form school
Quasi- test loop system, the solution of measured known boron concentration is loaded calibration water tank, starts circulating pump, makes B solution in examination
Test loop interior circulation, and realize temperature adjustment and the control of circulation solution based on the electric heater unit of pid control principle, utilize
Hygrosensor in loop can on-line measurement calibration test loop temperature, the solution stream in flow control valve energy regulating loop
Amount, and the effusion meter real-time monitoring liquid inventory by being arranged on device inner looping, by sampling the circulation of bend pipe direct access
Solution, by contrasting the solution boron concentration that boron concentration measurement system obtains, calibration and the measurement ginseng revising boron concentration measurement system
Number, after off-test, opens the technological means that solution is discharged by drain valve, so, efficiently solve calibration of the prior art
Device has that service life is short, mobile inconvenience, calibration efficiency and the relatively low technical problem of accuracy rate, and then achieve nuclear power station boron
The calibrating installation long service life of concentration measurement system measurement parameter, easy to use, calibration efficiency and accuracy rate are higher, and energy
Enough energy are quick to be connected formation calibration test loop with boron concentration measurement system, can automatically and manually calibrating installation be controlled
System.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to including excellent
Select embodiment and fall into being had altered and changing of the scope of the invention.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (6)
1. a kind of calibrating installation of nuclear power station boron concentration measurement system measurement parameter is it is characterised in that described device includes:
Calibration water tank, calibration control chamber, rack, calibration test loop, electric heater unit and effusion meter, wherein, described calibration water
Case, calibration control chamber, calibration test loop are installed in described rack, and described electric heater unit, described effusion meter are arranged on
On described calibration test loop, described calibration water tank be connected with described calibration test loop, described calibration test loop with described
Calibration control chamber connects；
Wherein, described calibration test loop specifically includes: water inlet adapter, water outlet pipeline, sampling valve, sampling adapter, Flow-rate adjustment
Valve, hygrosensor, back with water inlet line, drain valve, castor, seal nipple and circulating pump, described device also includes: motor cabinet, connects
Ground bolt, rack beam and control box bracket；Described flow control valve is used for the liquid inventory in regulating loop, and described effusion meter is used
Liquid inventory in calibration test loop described in real-time monitoring；Described sampling adapter is used for obtaining circulation solution, by contrast
The solution boron concentration that described boron concentration measurement system obtains, calibration and the measurement parameter revising described boron concentration measurement system；
Described hygrosensor, described circulating pump, described electric heater unit are all connected with described calibration control chamber, described calibration control
Case processed is controlled to described hygrosensor, described circulating pump, described electric heater unit, and calibration control chamber is to circulating pump start and stop
And the heating element heater in electric heater unit carries out break-make control, realize testing liquid's reciprocation cycle at a temperature of setting, specifically
For: the input temp t of setting0It is converted into the control parameter of pid, changed by the break-make controlling heating element heater molten in calibration water tank
Liquid temp, the solution temperature t that hygrosensor detects1With design temperature t0It is compared, until both are identical, eventually through
Automatically controlling of solution temperature realized by calibration control chamber.
2. device according to claim 1 is it is characterised in that described calibration water tank and described nuclear power station boron measurement of concetration system
System connects, and described circulating pump provides power for B solution in described calibration test loop interior circulation.
3. device according to claim 1 is based on pid control principle it is characterised in that described electric heater unit is specially
Electric heater unit, described electric heater unit be used for realize the temperature adjustment of circulation solution in described calibration test loop and control
System.
4. device according to claim 1 is it is characterised in that described hygrosensor is used for calibration examination described in on-line measurement
Test the temperature in loop.
5. device according to claim 1 is it is characterised in that described rack beam erects depth of beam and described rack inner chamber
Highly identical, the width of described rack beam crossbeam is identical with the width of described rack inner chamber.
6. device according to claim 1 utilizes hose connection described calibration cartridge it is characterised in that described device is specially
The import and export snap joint put and boron concentration measurement system, form calibration test system.
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| CN106153849A (en) * | 2016-08-29 | 2016-11-23 | 南京华天科技发展股份有限公司 | A kind of multi-functional online water quality detecting device |
| CN107610790A (en) * | 2017-08-17 | 2018-01-19 | 广西防城港核电有限公司 | A kind of neutron count rate harvester and method for the demarcation of nuclear power station boron table |
| CN109473185B (en) * | 2018-11-13 | 2022-07-29 | 中国核动力研究设计院 | Testing device and testing method for automatic chemical reactor shutdown system |
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