CN101975778B - Device and method for detecting water quality stability - Google Patents
Device and method for detecting water quality stability Download PDFInfo
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- CN101975778B CN101975778B CN2010105086814A CN201010508681A CN101975778B CN 101975778 B CN101975778 B CN 101975778B CN 2010105086814 A CN2010105086814 A CN 2010105086814A CN 201010508681 A CN201010508681 A CN 201010508681A CN 101975778 B CN101975778 B CN 101975778B
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Abstract
The invention provides a device and method for detecting water quality stability. The device comprises a sampling unit, a measuring unit and a detecting unit. The sampling unit comprises a first sampling cup, a second sampling cup, a first sample introduction control valve and a second sample introduction control valve. The measuring unit comprises an acid liquor cup, a measuring cup, a titration control valve and a detecting electrode. The first sampling cup and the second sampling cup are communicated with the measuring cup of the measuring unit respectively through the first sample introduction control valve and the second sample introduction control valve. The acid liquor cup is communicated with the measuring cup through the titration control valve. The detecting electrode is used for detecting the alkalinity of the liquor in the measuring cup, and for transmitting the detecting result to the detecting unit. The detecting unit is used for controlling the titration process of the liquid in the first sampling cup and the second sampling cup, collecting the data, and determining the alkalinity difference of the liquors in the two sampling cups according to the collected data so as to analyze the water quality stability. The device and method provided by the invention can realize the automatic detection of the water quality stability.
Description
Technical field
The present invention relates to chemical analysis and automatic field, particularly relate to a kind of water quality stability pick-up unit and detection method.
Background technology
Current, the process water of every field such as electric power, petrochemical complex, metallurgy is more and more many.Along with continually developing and the deterioration year by year of water quality of water resource; If recirculated water less stable; In commercial unit, be easy to the situation such as the fouling of condenser tubing, corrosion occur, exchange device perhaps carries out measures such as pickling thereby have to take more, exhausts the people and drains the treasury.Whether stablizing of water quality concerning that can commercial unit normally move, and therefore, it is significant for commercial production that supervision detects recirculated water stability.
For judgement circulation cooling water quality stabilizing property multiple judge index is arranged in the industry at present; But at present the supervision detection of water quality stability is normally accomplished with the mode of manual work; Be lab technician's detection that in the analysis room, experimentizes of taking a sample, come the judge index of dissecting needle according to artificial experimental data then water quality stability.This manual detection mode labor intensive, material resources; And can't carry out the real-time oversight of water stability, more can't obtain testing result fast; Water quality stability once can not be detected by real-time oversight in some power plant even one month just chemical examination, is easy to cause pipeline fouling or corrosion condition.
Summary of the invention
The supervision that the present invention is directed in the prior art water quality stability detects and can only propose a kind of water quality stability pick-up unit and detection method through the problem of artificial chemical examination mode, can detect, analyze water quality stability in real time, and the saving human and material resources.
The invention provides a kind of water quality stability pick-up unit, this pick-up unit comprises sampling unit, measuring unit and detecting unit; Said sampling unit comprises the first sampling cup, the second sampling cup, by first sample control valve and second sample control valve of detecting unit control; Said measuring unit comprises acid solution cup, measuring cup, by the titration operation valve of detecting unit control and the detecting electrode that is connected to detecting unit; The said first sampling cup and the second sampling cup are communicated to the measuring cup of said measuring unit respectively through first sample control valve and second sample control valve; Said acid solution cup is communicated to said measuring cup through the titration operation valve, is used for holding acid solution and with this acid solution the liquid of measuring cup is carried out titration; Said detecting electrode is used for detecting the basicity of measuring cup liquid, and sends testing result to detecting unit; Said detecting unit be used for controlling to the titration process of the first sampling cup liquid and the data of gathering this titration process, control to the titration process of liquid in the second sampling cup and gather this titration process data, confirm the basicity difference of two liquid in the sampling cup according to the data that collect, to analyze water quality stability.
The present invention also provides a kind of water quality stability detection method; This water quality stability detection method is by above-mentioned water quality stability pick-up unit execution provided by the invention, and this water quality stability detection method may further comprise the steps: with difference splendid attire testing liquid in said first sampling cup and the said second sampling cup with through the liquid after the lime carbonate post; By the titration process and the data of gathering this titration process of said detecting unit control to liquid in the first sampling cup; By the titration process and the data of gathering this titration process of said detecting unit control to liquid in the second sampling cup; Confirm that according to the data that collect testing liquid is changing through the basicity before and after the lime carbonate post by said detecting unit, to analyze water quality stability.
Water quality stability pick-up unit provided by the invention and detection method; Owing to comprise sampling unit, measuring unit and detecting unit; Can utilize detecting unit to control water to be measured and water to be measured titration process automatically through the liquid of lime carbonate post, and the data of gathering two titration processes, confirm that according to the data that collect water to be measured changes through the basicity before and after the lime carbonate post; Obtain water quality stability thereby analyze; Than the existing manual experiment detection method, saved human and material resources, and can reach the effect of automatic time detection, real-time analysis.And preferred implementation provided by the invention has adopted the double filtration method, has reduced the pollution to the lime carbonate post; And another preferred implementation installs liquid level detection device additional in sampling cup, can monitor the liquid level in the sampling cup in real time, with the control titration process; Acid solution cup in the preferred implementation has adopted the constant level parts again, thereby makes the liquid level of acid solution cup automatically keep constant, thereby makes that mentioning of titration goes out in titration process acid droplet is constant, thereby makes measuring process accurately stable more.
Description of drawings
Fig. 1 is the structural representation of water quality stability pick-up unit provided by the invention;
Fig. 2 is the structural representation of the sampling cup in the water quality stability pick-up unit provided by the invention;
Fig. 3 is the structural representation of the acid solution cup in the water quality stability pick-up unit provided by the invention; And
Fig. 4 is the process flow diagram of water quality stability detection method provided by the invention.
Embodiment
In order to understand water quality stability pick-up unit provided by the invention and method better, at first detect principle below and describe for water quality stability.
Water quality stability mainly refers to chemical stability, and water quality stability often is defined as neither dissolving fortunately in the water and wastewater industry and does not deposit lime carbonate again.When the lime carbonate supersaturation in the water, tend to be settled out lime carbonate, this water can produce precipitation of calcium carbonate when in pipeline, flowing, and is deposited on to cause fouling on the tube wall.When calcium carbonate content is lower than saturation value in the water; Then tend to make settled dissolution of calcium carbonate; This water runs into concrete pipeline and structures will produce erosion action; Then can dissolve inner-walls of duct lime carbonate diaphragm when in metallic conduit, flowing, metal is produced corrosive attack, the two all is the water of chemically unstable.Having only does not both have winnofil tendency and does not have the water that dissolving lime carbonate is inclined to yet and be only chemically stable water.Utilizing above-mentioned principle, when measuring water quality stability, can get detected water sample and the detected water sample water sample after through lime carbonate post 11 and carry out basicity mensuration, is the basicity of water sample of lime carbonate post 11 of flowing through like Ci, and C0 is the basicity without the water sample of percarbonic acid calcium post 11.Can establish permanence is A=C0/Ci, A＜1, and the expression water sample has corrosion tendency; A=1, the expression water sample is in steady state (SS); A＞1, the expression water sample has fouling tendency.
As shown in Figure 1ly the invention provides a kind of water quality stability pick-up unit, said water quality stability pick-up unit comprises sampling unit, measuring unit and detecting unit 9; Said sampling unit comprises the first sampling cup, 1, the second sampling cup 2, by first sample control valve 3 and second sample control valve 4 of detecting unit 9 controls; Said measuring unit comprises acid solution cup 5, measuring cup 6, by the titration operation valve 7 of detecting unit 9 controls and the detecting electrode 8 that is connected to detecting unit 9; The said first sampling cup, the 1 and second sampling cup 2 is communicated to the measuring cup 6 of said measuring unit respectively through first sample control valve 3 and second sample control valve 4; The said first sampling cup 1 can be used for splendid attire testing liquid (water), and the said second sampling cup 2 can be used for the liquid of splendid attire water to be measured after through lime carbonate post 11; Said acid solution cup 5 is communicated to said measuring cup 6 through titration operation valve 7, is used for holding acid solution and with this acid solution the liquid of measuring cup 6 is carried out titration; Said detecting electrode 8 is used for detecting the basicity of measuring cup 6 liquid, and sends testing result to detecting unit 9; Said detecting unit 9 be used for controlling to the titration process of the first sampling cup, 1 liquid and the data of gathering this titration process, control to the titration process of liquid in the second sampling cup 2 and gather this titration process data, confirm the basicity difference of two liquid in the sampling cup according to the data that collect, to analyze water quality stability.
Wherein, said detecting unit 9 is for comprising to the control of the titration process of the first sampling cup 1 and for the collection of the data of this titration process: through the opening and closing of controlling first sample control valve 3 liquid in the sampling cup 1 of winning is flowed in the said measuring cup 6; Open the acid solution that makes in the acid solution cup 5 and flow in the said measuring cup 6 and carry out titration through controlling said titration operation valve 7, and said detecting unit 9 stylus points are to the titration start time of the titration process of the first sampling cup 1; With when receiving from said detecting electrode 8 when showing the testing result that arrives titration end-point, control said titration operation valve 7 and close, and said detecting unit 9 stylus points are to the titration concluding time of the titration process of the first sampling cup 1; And; Similarly, said detecting unit 9 is for comprising to the control of the titration process of the second sampling cup 2 with for the collection of the data of this titration process: make the liquid in the second sampling cup 2 flow in the said measuring cup 6 through the opening and closing of controlling second sample control valve 4; Open the acid solution that makes in the acid solution cup 5 and flow in the said measuring cup 6 and carry out titration through controlling said titration operation valve 7, and said detecting unit 9 stylus points are to the titration start time of the titration process of the second sampling cup 2; With when receiving from said detecting electrode 8 when showing the testing result that arrives titration end-point, controls said titration operation valve 7 and close, and stylus point is to the titration concluding time of the titration process of the second sampling cup 2.Preferably; In order to prevent cross pollution; Said detecting unit 9 can be accomplished the repeatedly cleaning (being preferably 3 times) of measuring cup 6 through the opening and closing of controlling first sample control valve 3, controls the opening and closing of titration operation valve 7 afterwards again and accomplishes titration process; Equally, for the titration process to liquid in the second sampling cup 2, said detecting unit 9 also can be accomplished the repeatedly cleaning (being preferably 3 times) of measuring cup 6 through the opening and closing of controlling second sample control valve 4.
Said detecting unit 9 confirms that according to the data that collect the basicity difference of two liquid in the sampling cup comprises: the amount of confirming to splash in the titration process to said first sampling glass 1 acid solution in the measuring cup 6 according to the titration start time and the titration concluding time of the first sampling cup 1; Confirm to splash in the titration process to said second sampling glasss 2 amount of the acid solution in the measuring cup 6 according to titration start time of the second sampling cup 2 and titration concluding time; And the basicity difference of confirming the liquid in two samplings glass according to the amount that splashes into the acid solution in the measuring cup 6 in amount that splashes into the acid solution in the measuring cup 6 in the titration process to the said first sampling cup 1 and the titration process to the said second sampling cup 2.And as previously mentioned; The said first sampling cup 1 can be used for splendid attire testing liquid (water); The said second sampling cup 2 can be used for the liquid of splendid attire water to be measured after through lime carbonate post 11; Determine the basicity difference of two liquid in the sampling cup like this, just can obtain water to be measured and change in basicity through lime carbonate post 11 front and back.Need to prove; Owing to when adopting stable index method to judge water quality stability, only need know the ratio of the basicity of the liquid before and after the percarbonic acid post, therefore; Under the constant condition of the liquid volume that adopts identical acid solution cup and acid solution cup titration speed and titration to go out; Can need not to calculate the definite amount of the acid solution of institute's titration, promptly need not to know the rate value of acid solution titration, the titration duration of two titration processes is divided by; Promptly can obtain permanence, thereby judge the stability of water quality.
Said detecting unit 9 can be the device with control and treatment function of computing machine and so on; Its sequential that can for example preset according to detecting unit 9 is come the open and close of control sample control valve, titration operation valve 7 automatically; And gather the data of titration process, and these data are carried out above analysis and processing.
Said sampling unit can also comprise shunt 10 and lime carbonate post 11; Said shunt 10 has liquid inlet, first liquid outlet and second liquid outlet with this shunt 10 internal communication; First liquid outlet is communicated to the first sampling cup, 1, the second liquid outlet and is communicated to the second sampling cup 2 through lime carbonate post 11.Water to be measured like this can flow into two sampling cups automatically through shunt 10, can also on the pipeline that leads to place, shunt 10 liquid inlets, valve be set, and like manual sealing valve, whether flows into shunt 10 to control water to be measured.
Said sampling unit can also comprise that sand core filter 12 said sand core filters 12 are arranged on the place, liquid inlet of said shunt 10.Be provided with sand filtration rod (claiming core again) in the said sand core filter 12, the sand filtration rod has countless micropores, is used for the impurity and the suspension of filtering water, can improve the clarity of water sample through the filtration of sand filtration rod.Sand core filter 12 for example can be quartz sand filtration device, active sand filter or the like.Like this; Because the place, liquid inlet at shunt 10 is provided with sand core filter 12; Make detected water sample before by shunting, at first to filter, shunt again afterwards, thus by sand core filter 12; Be passed into the sampling post detected water sample filtering impurity and suspension, can reduce pollution to follow up device.Preferably, said sampling unit can also comprise fiber filter post 13, and first liquid outlet of said shunt 10 is connected to said lime carbonate post 11 through said fiber filter post 13.Fiber filter post 13 the secondary filtration that can realize detected water sample is set, with impurity in the filtering detected water sample better and suspension, reduce the pollution of detected water sample to lime carbonate post 11.Be filled with fiber filter material in the said fiber filter post 13, constitute bulk cotton-wool sheet by the fiber that curls, impurity and the suspension of the space through fiber filter material in can filtering water is to improve the water clarification degree.Said fiber filter material for example can be synthon, fibrous asbestos or the like.
Said lime carbonate post 11 and said fiber filter post 13 can adopt the plexi-glass tubular (built-in calcium carbonate granule or fiber filter material) of same size internal diameter; It is connected with other pipelines with joint; The part that joint inserts in the plexi-glass tubular can be used the sealing of O type circle; Can prevent the phenomenon that plexi-glass tubular breaks owing to the uneven shank that is heated like this when just feeding water sample, and be easy to dismounting.
As shown in Figure 2; The said first sampling cup 1 comprises sampling cup cup 22 and the Level Detection parts 23 that are positioned at this sampling cup cup 22 separately with the said second sampling cup 2; Said sampling cup cup 22 has water inlet 24; Said Level Detection parts 23 are used for sending liquid level signal to said detecting unit 9, and said Level Detection parts 23 are arranged near the inner top of sampling cup cup 22, and it can adopt and well known to a person skilled in the art and variously can carry out the device that liquid level just detects and reports to the police.Preferably, said these Level Detection parts 23 comprise outer tube, be fixed in the inner tongue tube of outer tube and be positioned at outer tube inner and can the outer tube internal activity with near or away from the float with magnetic of tongue tube.Said tongue tube has liquid level signal output line 27, and this liquid level output line 27 is connected to detecting unit 9, and said tongue tube can output signal to detecting unit 9 from liquid level output line 27 near the position of this tongue tube the time in that float is movable.Tongue tube is a kind of magnetosensitive switch.It usually by two not only the reed made of magnetic conduction but also conductive material (like iron-nickel alloy) be encapsulated in the glass tube that is filled with inert gas (like nitrogen, helium etc.) or vacuum and form; The leaf end of parallel encapsulation is overlapping in the glass tube pipe, and leaves certain interval or be in contact with one another often opening or normally closed contact with the formation switch.Under the effect of permanent magnetic field, when the magnetic force that attracts surpassed the drag of reed, the contact that reed separates just can adhesive; When magnetic force is reduced to certain value, return to off-state again at the effect lower contact of reed drag, so just accomplished the effect of a switch.Said float tool magnetic, for example said float can be relocatable baton rounds of a built-in permanent magnets.The up-down of water level make float correspondingly near or away from tongue tube, when near tongue tube, the magnetic force of permanent magnet makes the contact action of the reed of tongue tube, sends corresponding signal.If tongue tube is contained in a high position (top of float), the acting force that liquid produced is greater than the gravity of float, and float floats, and attracts the reed contact in the high-order tongue tube, makes its contact, thereby sends the normal contact signal of flow.If be contained in low level to tongue tube, when then flow was interrupted in pipeline, the reed contact action in the tongue tube can be used for sending the cutout alerting signal.Like this; Alerting signal can perhaps stop according to the flow normal signal about liquid level; Whether whether manually perhaps automatic control carries out next step operation, for example further the liquid in the water sample sampling cup is joined in the measuring cup 6, promptly whether begins the sample introduction process to measuring cup 6.That is to say; Preferably; Said detecting unit 9 receive show the normal liquid level signal of liquid level after; Carry out following operation again: control to the titration process of liquid in the first sampling cup 1 and the data of gathering this titration process, control to the titration process of liquid in the second sampling cup 2 and gather this titration process data, confirm the basicity difference of two liquid in the sampling cup according to the data that collect, to analyze water quality stability.
Preferably; As shown in Figure 3; Said acid solution cup 5 comprises acid solution cup cup 28, dosing pipe 29 and constant level control part; Said acid solution cup cup 28 has dosing mouth 30; Said constant level control part comprises siphunculus 31 that is positioned at dosing mouth 30 places and the float-actuated valve 32 that is positioned at acid solution cup cup 28 inside, and said dosing pipe 29 inserts an end of said siphunculus 31, and the opening shape that said siphunculus 31 is positioned at the other end of acid solution cup cup 28 inside cooperates with float-actuated valve 32 so that the opening of this end of said siphunculus 31 can be by float-actuated valve 32 sealings.Said acid solution cup cup 28 is connected to measuring cup 6 through titration pipeline 37.The upper surface of said acid solution cup cup 28 has vent port 36.Said float-actuated valve 10 can be the aciculiform float-actuated valve; This aciculiform float-actuated valve can comprise aciculiform float 33, spacing ring 34 and gravitational equilibrium piece 35; Spacing ring 34 is connected with the end that said siphunculus 31 is positioned at acid solution cup cup 28; One end of aciculiform float 33 is conical, and the other end passes said spacing ring 34 and is connected to gravitational equilibrium piece 35.Wherein spacing ring 34 makes aciculiform float 33 between siphunculus 31 and spacing ring 34, float, and gravitational equilibrium piece 35 makes aciculiform float 33 keep vertically, controls said aciculiform float 33 and keeps balance, is beneficial to acid & alkali liquid and oozes equably.The opening shape that siphunculus 31 is positioned at an end of acid solution cup cup 28 matches with the shape of aciculiform float 33, and is as shown in Figure 3, aciculiform float 33 be shaped as taper shape, then the opening of siphunculus 31 is the circular cone inclined-plane.Can dosing pipe 29 be connected with the medicine container 21 that adds that acid solution is housed in use.When the liquid level in the acid solution cup cup 28 descended, the aciculiform float 33 in the float-actuated valve 32 can descend along with liquid level, and have space between aciculiform float 33 and the siphunculus 31 this moment, made the acid solution that adds in the medicine container 21 inject titration cup cup 28 through dosing pipe 29.And when the acid solution liquid level rises; Aciculiform float 33 rises thereupon; Thereby can seal the opening of siphunculus 31 bottoms, acid solution just can not flow in the acid solution cup cup 28, thereby can keep the liquid level of acid solution constant; Make acid & alkali liquid to ooze equably, avoided oozing the error that the acid solution instability of flow causes owing to acid solution volume change in the acid solution titration cup in the acid solution titration process makes.And the permanent liquid level process of above-mentioned acid solution cup 5 need not computer control, and is simple and convenient.
Preferably; As shown in Figure 1; Said measuring cup 6 comprises measuring cup 6 cups, siphon positioning pipe 18 and the magnetic stirring apparatus 19 that places measuring cup 6 bottom of cup, and it is inner that an end of said siphon positioning pipe 18 is positioned at measuring cup 6 cups, and it is outside that the other end is positioned at measuring cup 6 cups.Like this, the inner water sample of measuring cup 6 cups is carried and can be adopted siphon mode to keep constant, and the magnetic stirring apparatus 19 of measuring cup 6 bottoms can be realized cleaning and agitating function.
Preferably; Said water quality stability pick-up unit also comprises waste discharge slot 14; The said first sampling cup 1 is communicated to waste discharge slot 14 through overflow passage 15,16 respectively with the said second sampling cup 2, and the pipeline connection of said measuring cup 6 through having solenoid valve 17 is to waste discharge slot 14.Said overflow passage 15,16 is arranged in the top of an end of insertion sampling cup cup near sampling cup cup, so that the liquid flooding in the cup cup of only when the liquid in the cup cup of sampling exceeds certain liquid level, just will sampling is to waste discharge slot 14.
As shown in Figure 2, the present invention also provides a kind of water quality stability detection method, is carried out by above-mentioned water quality stability pick-up unit provided by the invention.This water quality stability detection method may further comprise the steps: with splendid attire testing liquid and through the liquid after the lime carbonate post 11 respectively in the said first sampling cup 1 and the said second sampling cup 2; By the titration process and the data of gathering this titration process of said detecting unit 9 controls to liquid in the first sampling cup 1; By the titration process and the data of gathering this titration process of said detecting unit 9 controls to liquid in the second sampling cup 2; Confirm that according to the data that collect testing liquid changes in the basicity through lime carbonate post 11 front and back by said detecting unit 9, to analyze water quality stability.
Wherein by 9 controls of said detecting unit to the titration process of liquid in the first sampling cup 1 and the data of gathering this titration process, control to the titration process of liquid in the second sampling cup 2 and gather this titration process data, confirm that according to the data that collect testing liquid changes in the basicity through lime carbonate post 11 front and back; To analyze the process of water quality stability; With identical in the description of water quality stability pick-up unit provided by the invention, so do not giving unnecessary details at this.The amount of the acid solution that can confirm in the titration process to be splashed into through titration process (certainly, as previously mentioned, when using above-mentioned preferred water quality stability pick-up unit provided by the invention; The value of the amount of the acid solution that can need not to confirm that the place splashes into; And only need know that the titration duration gets final product), can know the basicity of the liquid in the sampling cup, thereby confirm that testing liquid changes in the basicity through lime carbonate post 11 front and back; Thereby analysis water quality stability; Such as calculating permanence A by detecting unit, A=1 representes that water sample is in steady state (SS); A＜1 or A＞1 represent that all water sample is unstable, and A＜1 expression water sample has corrosion tendency; A＞1, the expression water sample has fouling tendency.
Water quality stability pick-up unit provided by the invention and water quality stability detection method can realize the real-time monitoring of water quality stability automatically, and be simple to operate and with low cost, saved manpower and materials.It will be appreciated that above-mentioned each embodiment can any combination or enforcement separately.And the above embodiment only is used to explain technical scheme of the present invention and unrestricted, and modification and variation that any those skilled in that art technical scheme according to the present invention is made without creative work are included within protection scope of the present invention.
Claims (12)
1. water quality stability pick-up unit, this pick-up unit comprises sampling unit, measuring unit and detecting unit (9); Said sampling unit comprises the first sampling cup (1), the second sampling cup (2), by first sample control valve (3) and second sample control valve (4) of detecting unit (9) control; Said sampling unit also comprises shunt (10) and lime carbonate post (11); Said shunt (10) has liquid inlet, first liquid outlet and second liquid outlet with this shunt (10) internal communication; First liquid outlet is communicated to the said first sampling cup (1), and second liquid outlet is communicated to the said second sampling cup (2) through lime carbonate post (11); Said measuring unit comprises acid solution cup (5), measuring cup (6), by the titration operation valve (7) of detecting unit (9) control and the detecting electrode (8) that is connected to detecting unit (9);
The said first sampling cup (1) and the second sampling cup (2) are communicated to the measuring cup (6) of said measuring unit respectively through first sample control valve (3) and second sample control valve (4);
Said acid solution cup (5) is communicated to said measuring cup (6) through titration operation valve (7), is used for holding acid solution and with this acid solution the liquid of measuring cup (6) is carried out titration;
Said detecting electrode (8) is used for detecting the basicity of measuring cup (6) liquid, and sends testing result to detecting unit (9);
Said detecting unit (9) be used for control to the titration process of first sampling cup (1) liquid and the data of gathering this titration process, control to the titration process of liquid in the second sampling cup (2) and the data of gathering this titration process, confirm the basicity difference of two liquid in the sampling cup according to the data that collect, with the analysis water quality stability.
2. water quality stability pick-up unit according to claim 1, wherein, said detecting unit (9) is for comprising to the control of the titration process of the first sampling cup (1) and for the collection of the data of this titration process:
Through the opening and closing of controlling first sample control valve (3) liquid in the sampling cup (1) of winning is flowed in the said measuring cup (6);
Open the acid solution that makes in the acid solution cup (5) and flow in the said measuring cup (6) and carry out titration through controlling said titration operation valve (7), and said detecting unit (9) stylus point is to the titration start time of the titration process of the first sampling cup (1); With
When receiving from said detecting electrode (8) when showing the testing result that arrives titration end-point, control said titration operation valve (7) and close, and said detecting unit (9) stylus point is to the titration concluding time of the titration process of the first sampling cup (1);
And said detecting unit (9) is for comprising to the control of the titration process of the second sampling cup (2) with for the collection of the data of this titration process:
Make the liquid in the second sampling cup (2) flow in the said measuring cup (6) through the opening and closing of controlling second sample control valve (4);
Open the acid solution that makes in the acid solution cup (5) and flow in the said measuring cup (6) and carry out titration through controlling said titration operation valve (7), and said detecting unit (9) stylus point is to the titration start time of the titration process of the second sampling cup (2); With
When receiving from said detecting electrode (8) when showing the testing result that arrives titration end-point, control said titration operation valve (7) and close, and stylus point is to the titration concluding time of the titration process of the second sampling cup (2).
3. water quality stability pick-up unit according to claim 2, wherein, said detecting unit (9) confirms that according to the data that collect the basicity difference of two liquid in the sampling cup comprises:
According to the amount of confirming to splash in the titration process to said first sampling glass (1) acid solution in the measuring cup (6) to titration start time of the first sampling cup (1) and titration concluding time;
Confirm to splash in the titration process to said second sampling glass (2) amount of the acid solution in the measuring cup (6) according to titration start time of the second sampling cup (2) and titration concluding time; And
Confirm the basicity difference of two liquid in the sampling cup according to the amount that splashes into the acid solution in the measuring cup (6) in amount that splashes into the acid solution in the measuring cup (6) in the titration process to the said first sampling cup (1) and the titration process to the said second sampling cup (2).
4. according to the described water quality stability pick-up unit of the arbitrary claim of claim 1-3; Wherein, Said sampling unit also comprises sand core filter (12) and fiber filter post (13); Said sand core filter (12) is arranged on the place, liquid inlet of said shunt (10), and first liquid outlet of said shunt (10) is connected to said lime carbonate post (11) through said fiber filter post (13).
5. water quality stability pick-up unit according to claim 1; Wherein, Said first sampling cup (1) and the said second sampling cup (2) comprise sampling cup cup (22) separately and are positioned at the Level Detection parts (23) of this sampling cup cup (22); Said sampling cup cup (22) has water inlet (24); Said Level Detection parts (23) are used for sending liquid level signal to said detecting unit (9); Said Level Detection parts (23) are arranged near the inner top of sampling cup cup (22), and these Level Detection parts (23) comprise outer tube, be fixed in the inner tongue tube of outer tube and be positioned at outer tube inner and can the outer tube internal activity with near or away from the float with magnetic of tongue tube.
6. water quality stability pick-up unit according to claim 5; Wherein, Said detecting unit (9) receive show the normal liquid level signal of liquid level after; Carry out following operation again: control to the titration process of liquid in the first sampling cup (1) and the data of gathering this titration process, control to the titration process of liquid in the second sampling cup (2) and the data of gathering this titration process, confirm the basicity difference of two liquid in the sampling cup according to the data that collect, to analyze water quality stability.
7. water quality stability pick-up unit according to claim 1; Wherein, Said acid solution cup (5) comprises acid solution cup cup (28), dosing pipe (29) and constant level control part; Said acid solution cup cup (28) has dosing mouth (30); Said constant level control part comprises and is positioned at the siphunculus (31) that dosing mouth (30) locates and is positioned at the inner float-actuated valve (32) of acid solution cup cup (28) that said dosing pipe (29) inserts an end of said siphunculus (31), and the opening shape that said siphunculus (31) is positioned at the inner other end of acid solution cup cup (28) cooperates with float-actuated valve (32) so that the opening of this end of said siphunculus (31) can be sealed by float-actuated valve (32).
8. water quality stability pick-up unit according to claim 1; Wherein, Said measuring cup (6) comprises measuring cup (6) cup, siphon positioning pipe (18) and the magnetic stirring apparatus (19) that places measuring cup (6) bottom of cup; It is inner that one end of said siphon positioning pipe (18) is positioned at measuring cup (6) cup, and it is outside that the other end is positioned at measuring cup (6) cup.
9. water quality stability pick-up unit according to claim 1; This water quality stability pick-up unit also comprises waste discharge slot (14); Said first sampling cup (1) and the said second sampling cup (2) are respectively through overflow passage (15; 16) be communicated to waste discharge slot (14), the pipeline connection of said measuring cup (6) through having solenoid valve (17) is to waste discharge slot (14).
10. one kind by the water quality stability detection method of carrying out according to the described water quality stability pick-up unit of arbitrary claim among the claim 1-9, and this water quality stability detection method may further comprise the steps:
With said first sampling glass (1) and middle splendid attire testing liquid respectively of the said second sampling cup (2) and process lime carbonate post (11) liquid afterwards;
By the titration process and the data of gathering this titration process of said detecting unit (9) control to liquid in the first sampling cup (1);
By the titration process and the data of gathering this titration process of said detecting unit (9) control to liquid in the second sampling cup (2);
Confirm that according to the data that collect testing liquid is changing through the basicity before and after the lime carbonate post (11) by said detecting unit (9), to analyze water quality stability.
11. water quality stability detection method according to claim 10 wherein, may further comprise the steps with the data of gathering this titration process by the titration process of said detecting unit (9) control to liquid in the first sampling cup (1):
Through controlling first sample control valve (3) opening and closing the liquid in the sampling cup (1) of winning is flowed in the said measuring cup (6);
Open the acid solution that makes in the acid solution cup (5) and flow in the said measuring cup 6 and carry out titration through controlling said titration operation valve (7), and said detecting unit (9) stylus point is to the titration start time of the titration process of the first sampling cup (1); With
When receiving from said detecting electrode (8) when showing the testing result that arrives titration end-point, control said titration operation valve (7) and close, and said detecting unit (9) stylus point is to the titration concluding time of the titration process of the first sampling cup (1);
And, may further comprise the steps with the data of gathering this titration process by the titration process of said detecting unit (9) control to liquid in the second sampling cup (2):
Make the liquid in the second sampling cup (2) flow in the said measuring cup (6) through controlling second sample control valve (4) opening and closing;
Open the acid solution that makes in the acid solution cup (5) and flow in the said measuring cup (6) and carry out titration through controlling said titration operation valve (7), and said detecting unit (9) stylus point is to the titration start time of the titration process of the second sampling cup (2); With
When receiving from said detecting electrode (8) when showing the testing result that arrives titration end-point, control said titration operation valve (7) and close, and said detecting unit (9) stylus point is to the titration concluding time of the titration process of the second sampling cup (2).
12. water quality stability detection method according to claim 11 wherein, confirms that according to the data that collect testing liquid may further comprise the steps in the basicity variation through lime carbonate post (11) front and back by said detecting unit (9):
Confirm to splash in the titration process to said first sampling glass (1) amount of the acid solution in the measuring cup (6) according to titration start time of the first sampling cup (1) and titration concluding time;
Confirm to splash in the titration process to said second sampling glass (2) amount of the acid solution in the measuring cup (6) according to titration start time of the second sampling cup (2) and titration concluding time; And
Confirm that according to the amount that splashes into the acid solution in the measuring cup (6) in amount that splashes into the acid solution in the measuring cup (6) in the titration process to the said first sampling cup (1) and the titration process water to be measured is changing through the basicity before and after the lime carbonate post (11) to the said second sampling cup (2).
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| CN2010105086814A CN101975778B (en) | 2010-10-09 | 2010-10-09 | Device and method for detecting water quality stability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108398522A (en) * | 2018-02-11 | 2018-08-14 | 吉林省电力科学研究院有限公司 | industrial water quality stabilizing characteristic tester |
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| CN104360038B (en) * | 2014-11-26 | 2016-03-30 | 贵州电力试验研究院 | The stable index balanced reaction device of integration |
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| CN2510480Y (en) * | 2001-12-03 | 2002-09-11 | 机械工业第五设计研究院 | Multifunctional recirculating water auto-control treating machine |
| CN100420639C (en) * | 2004-11-01 | 2008-09-24 | 中国水产科学研究院东海水产研究所 | Calcium ion disbalance water quality improving method |
| JP2008032691A (en) * | 2006-06-29 | 2008-02-14 | Fuji Electric Systems Co Ltd | Water quality monitoring system and method |
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| CN108398522A (en) * | 2018-02-11 | 2018-08-14 | 吉林省电力科学研究院有限公司 | industrial water quality stabilizing characteristic tester |
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