CN207667571U - A kind of liquid mixing equipment - Google Patents
A kind of liquid mixing equipment Download PDFInfo
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- CN207667571U CN207667571U CN201721619960.1U CN201721619960U CN207667571U CN 207667571 U CN207667571 U CN 207667571U CN 201721619960 U CN201721619960 U CN 201721619960U CN 207667571 U CN207667571 U CN 207667571U
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Abstract
The utility model discloses a kind of liquid mixing equipments, including solution mixing pit (1), mixing pit inlet tube (2), the first syringe pump (4), the first inlet tube (41), the first outlet tube (42), the second syringe pump (5), the second inlet tube (51), the second outlet tube (52), magnetic stirrer (7).It first controls the second syringe pump (5) to inject dilution to mixed solution pond (1), then controls the first syringe pump (4) and inject standard solution mother liquor to mixed solution pond (1).It is finished when standard solution mother liquor injects, continues the second syringe pump of control (5) and inject dilution to mixed solution pond (1).When being easy to finish to mixed solution pond (1) injection, waits magnetic stirrers (7) to stir evenly solution, close magnetic stirrer (7).The utility model has higher the degree of automation and higher solution mixed-precision.
Description
Technical field
The utility model is related to molten in a kind of solution Mixed Design method more particularly to a kind of Water Test Kits calibrating installation
Liquid mixes to obtain design.
Background technology
In environment water monitoring system, generally water body parameter is detected using online water analysis instrument, online water
Whether the accuracy of detection of matter analyzer meets national verification regulatory requirements, general to use the manually metering to online water analysis instrument
Performance is calibrated, and the long time period (generally requiring 36 hours) of artificial detection in-line analyzer.And how water quality is set
The mixing of solution in analyzer calibrating installation is the big factor for influencing calibrating installation solution and preparing.
Utility model content
Purpose of utility model：In order to overcome the deficiencies in the prior art, the utility model to provide a kind of solution preparation
Liquid mixing equipment with high accuracy and mixed method.
Technical solution：To achieve the above object, the technical solution adopted in the utility model is：
A kind of liquid mixing equipment, including solution mixing pit (1), mixing pit inlet tube (2), the first syringe pump (4), first
Inlet tube (41), the first outlet tube (42), the second syringe pump (5), the second inlet tube (51), the second outlet tube (52), electromagnetism stir
Device (7) is mixed, wherein：
The liquid feeding end of first syringe pump (4) for being connect with standard mother liquid multi-cavity bottle by the first inlet tube (41)
Liquid end is connected to by the first outlet tube (42) with solution mixing pit (1).The liquid feeding end of second syringe pump (5) is used for by the
Two inlet tubes (51) are connect with dilution bottle, and outlet end is connected to by the second outlet tube (52) with solution mixing pit (1).It is described
Mixed solution pond (1) includes with open major trough body (11), capping (12), and the capping (12) is for covering in major trough body (11)
Opening on, close major trough body (11).Major trough body (11) bottom is provided with feed pathway (111), detection liquid flow pass
(112) and apocenosis passage (113).
The magnetic stirrer (7) includes electromagnet fixed seat (71), electromagnet (72), stirrer (73), the electromagnetism
Ferropexy seat (71) is used to electromagnet (72) being fixed on the bottom of major trough body (11), and the stirrer (73) is set to major trough
Body (11) interior intracavitary.
Further：Further include Y-type three way type (3), the pipe fitting that the Y-type three way type (3) is two import one outlets, difference
For the first inlet tube, the second inlet tube and first outlet pipe.Described mixing pit inlet tube (2) one end and first outlet Guan Lian
It connects, the other end is connect with solution mixing pit (1).One end of first outlet tube (42), first go out liquid check valve (44) and
First inlet tube is sequentially connected, and the other end of first outlet tube (42) is connect with the outlet end of standard mother liquid multi-cavity bottle.It is described
One end of second outlet tube (52), second go out liquid check valve (54) and the second inlet tube is sequentially connected, and described second goes out liquid
The other end of pipe (52) is connect with the outlet end of dilution bottle.Connection between first inlet tube and the first outlet tube (42)
Place is provided with the first feed liquor check valve (43) for preventing liquid reflux, the connection of second inlet tube and the second outlet tube (52)
Place is provided with the second feed liquor check valve (53) for preventing liquid reflux.
Preferably：Described first goes out liquid check valve (44) closing mouth is less than 4 times first to the distance L that the first inlet tube exports
Go out liquid check valve (44) outlet end caliber R.Described second goes out the distance L that liquid check valve (54) closing mouth is exported to the second inlet tube
Go out liquid check valve (54) outlet end caliber R less than 4 times second.
Preferably：The angle of angle between first inlet tube, the second inlet tube is 45 °.
Preferably：The inlet of the apocenosis passage (113) is located at the bottom of major trough body (11) inner cavity, and the feed liquor is logical
The inlet in road (111) is higher than the inlet of detection liquid flow pass (112), while the inlet of the apocenosis passage (113)
Less than the inlet of detection liquid flow pass (112), the detection liquid flow pass (112) is for connecting inspection by sampling equipment.
A kind of solution blending methods, include the following steps：
Step 1, start the first syringe pump (4) and draw standard solution mother liquor from standard mother liquid multi-cavity bottle.Start the second syringe pump (5)
Dilution is drawn from dilution bottle, starts magnetic stirrer (7) and is stirred.
Step 2, it first controls the second syringe pump (5) to inject dilution to mixed solution pond (1), then controls the first injection
(4) are pumped to inject standard solution mother liquor to mixed solution pond (1).
Step 3, when the injection of standard solution mother liquor finishes, continue to control the second syringe pump (5) by dilution to mixed solution
Pond (1) is injected.
Step 4, it when being easy to finish to mixed solution pond (1) injection, waits magnetic stirrers (7) to stir evenly solution, closes
Close magnetic stirrer (7).
Preferably：Continue to control the dilution that the second syringe pump (5) injects dilution to mixed solution pond (1) in step 3
The amount of liquid at least accounts for 1/5th of the amount of entire dilution.
The utility model compared with prior art, has the advantages that：
The utility model has higher the degree of automation and higher solution mixed-precision.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the principle schematic of water quality online analyzer self-checking device；
Fig. 3 is the workflow schematic diagram of water quality online analyzer self-checking device；
Fig. 4 is the structural schematic diagram of solution mixing pit；
Fig. 5 is the stereoscopic schematic diagram of solution mixing pit；
Fig. 6 is electromagnetism fixed seat structure schematic diagram；
Fig. 7 is capping structural schematic diagram；
Fig. 8 is the structural schematic diagram of threeway.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate, it should be understood that these examples are only used for
Bright the utility model rather than limitation the scope of the utility model, after having read the utility model, people in the art
Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the utility model.
A kind of liquid mixing equipment, as shown in Figure 1, including solution mixing pit (1), mixing pit inlet tube (2), the first injection
Pump (4), the first inlet tube (41), the first outlet tube (42), the second syringe pump (5), the second inlet tube (51), the second outlet tube
(52), magnetic stirrer (7), wherein：
The liquid feeding end of first syringe pump (4) for being connect with standard mother liquid multi-cavity bottle by the first inlet tube (41)
Liquid end is connected to by the first outlet tube (42) with solution mixing pit (1).The liquid feeding end of second syringe pump (5) is used for by the
Two inlet tubes (51) are connect with dilution bottle, and outlet end is connected to by the second outlet tube (52) with solution mixing pit (1).It is described
Mixed solution pond (1) includes with open major trough body (11), capping (12), and the capping (12) is for covering in major trough body (11)
Opening on, close major trough body (11).Major trough body (11) bottom is provided with feed pathway (111), detection liquid flow pass
(112) and apocenosis passage (113).
The magnetic stirrer (7) includes electromagnet fixed seat (71), electromagnet (72), stirrer (73), the electromagnetism
Ferropexy seat (71) is used to electromagnet (72) being fixed on the bottom of major trough body (11), and the stirrer (73) is set to major trough
Body (11) interior intracavitary.
Further include Y-type three way type (3), the Y-type three way type (3) be two import one outlets pipe fitting, respectively first into
Mouth pipe, the second inlet tube and first outlet pipe.Described mixing pit inlet tube (2) one end is connect with first outlet pipe, the other end
It is connect with solution mixing pit (1).One end of first outlet tube (42), first go out liquid check valve (44) and the first inlet tube
It is sequentially connected, and the other end of first outlet tube (42) is connect with the outlet end of standard mother liquid multi-cavity bottle.Second outlet tube
(52) one end, second go out liquid check valve (54) and the second inlet tube is sequentially connected, and second outlet tube (52) is another
One end is connect with the outlet end of dilution bottle.Junction between first inlet tube and the first outlet tube (42) is provided with anti-
The junction of only the first feed liquor check valve (43) of liquid reflux, second inlet tube and the second outlet tube (52) is provided with anti-
Only the second feed liquor check valve (53) of liquid reflux.
The purpose that Y-type three way type (3) is arranged mainly reduces the first syringe pump (4), the second syringe pump (5) and solution mixing pit
(1) length of pipe between, if the first syringe pump (4), the second syringe pump (5) are respectively with two pipelines and solution mixing pit (1)
Connection, then increase the dead volume in pipeline, influences the configuration precision of solution, therefore the utility model uses Y-type three way type (3)
Two pipelines are merged into a pipeline, the length of pipeline is reduced, thereby reduces the dead volume in pipeline, improve solution
Configuration precision.
First goes out there are two the purposes of liquid check valve (44) setting, and first is to prevent liquid from flowing back from Y-type three way type (3),
It is another to be, when first go out liquid check valve (44) closing mouth go out liquid check valve less than 4 times first to the distance L that the first inlet tube exports
(44) when outlet end caliber R, first goes out liquid check valve (44) exports to form turbulence structure with the first inlet tube, when the first liquid stops
When only being flowed into mixing pit inlet tube (2), goes out between liquid check valve (44) closing mouth is exported to the first inlet tube first and have
First liquid is flowed into when second liquid continues through Y-type three way type (3) in mixing pit inlet tube (2), due to the first inlet tube, the
There are angles between two inlet tubes so that the second liquid flowed out from the second inlet tube rushes at the outlet of the first inlet tube, with first
Inlet tube outlet is collided, and second liquid after collision forms turbulent flow, within and around the outlet of the first inlet tube of agitation, first
Go out the solution in liquid check valve (44), and then enter first and go out in liquid check valve (44), when turbulent flow goes out liquid check valve to first
(44) when closing mouth, due to closing the blocking of mouth, turbulent flow returns, and the return of turbulent flow goes out the solution in liquid check valve (44) by first
It takes out of, and then realizes the first exchange for going out the solution in liquid check valve (44), i.e., going out liquid check valve (44) closing mouth by first arrives
The first liquid having between the outlet of first inlet tube is gradually diluted by the effect of turbulent flow to be taken out of, and Liquid Residue is avoided to match solution
The influence of system, and then improve the configuration precision of solution.Similarly understand the second setting purpose for going out liquid check valve (54).
Described first goes out liquid check valve (44) closing mouth goes out liquid list to the distance L that the first inlet tube exports less than 4 times first
To valve (44) outlet end caliber R, described second goes out liquid check valve (54) closing mouth is less than 4 to the distance L that the second inlet tube exports
Second goes out liquid check valve (54) outlet end caliber R again.First go out liquid check valve (44) close mouth to the first inlet tube export away from
More shorter, better with a distance from L, distance is shorter, and turbulent flow is bigger, can preferably contradict second and go out liquid check valve (54) closing
Solution at mouthful.Y-type three way type (3) is as long as ensure that there are angle, best angles between the first inlet tube, the second inlet tube
It it is 45 °, using PTEF materials, the Y-type three way type of special angle makes that the connecting line in calibrating installation is as short as possible, dead volume to the greatest extent may be used
It can be small.
Described first goes out liquid check valve (44) closing mouth goes out liquid list to the distance L that the first inlet tube exports less than 4 times first
To valve (44) outlet end caliber R.Described second goes out liquid check valve (54) closing mouth is less than 4 to the distance L that the second inlet tube exports
Second goes out liquid check valve (54) outlet end caliber R again.First go out liquid check valve (44) close mouth to the first inlet tube export away from
More shorter, better with a distance from L, distance is shorter, and turbulent flow is bigger, can preferably contradict second and go out liquid check valve (54) closing
Solution at mouthful.
The inlet of the apocenosis passage (113) is located at the bottom of major trough body (11) inner cavity, and the feed pathway (111)
Inlet higher than detection liquid flow pass (112) inlet, while the inlet of the apocenosis passage (113) less than detection
The inlet of liquid flow pass (112), the detection liquid flow pass (112) is for connecting inspection by sampling equipment.Using feed liquor
Channel (111) is set to the bottom of inner cavity so that dilution and standard mother liquor enter mixed solution from mixed solution pond (1) bottom
Dilution and standard mother liquor are beaten and are flown on mixed solution pond (1) inner wall when preventing stirrer 73 from rotating in this way by pond (1), influence
The mixed-precision of solution.In addition, when having solution in mixed solution pond (1), stirrer begins to work to mix test solution, accelerates
Mixing velocity.The utility model carries out mixing pit using solution from bottom of pond portion, while top is capped, this structure can reduce solution
The influence of evaporation, mixing pool wall solution wall built-up phenomenon to precision preparation.Therefore when sampling sample introduction, need not stop stirring.
A kind of solution blending methods, include the following steps：
Step 1, start the first syringe pump (4) and draw standard solution mother liquor from standard mother liquid multi-cavity bottle.Start the second syringe pump (5)
Dilution is drawn from dilution bottle, starts magnetic stirrer (7) and is stirred.
Step 2, it first controls the second syringe pump (5) to inject dilution to mixed solution pond (1), then controls the first injection
(4) are pumped to inject standard solution mother liquor to mixed solution pond (1).
Step 3, when the injection of standard solution mother liquor finishes, continue to control the second syringe pump (5) by dilution to mixed solution
Pond (1) is injected.Continue the second syringe pump of control (5) at least to account for the amount for the dilution that dilution is injected to mixed solution pond (1)
/ 5th of the amount of entire dilution.
Step 4, it when being easy to finish to mixed solution pond (1) injection, waits magnetic stirrers (7) to stir evenly solution, closes
Close magnetic stirrer (7).
As illustrated in figs. 2 through 8, the configuration by the utility model for solution in water quality online analyzer self-checking device, institute
It includes host computer, the first control module A, the second control module B, third control mould to state water quality online analyzer self-checking device
Block C, circuit control panel, peristaltic pump (6), magnetic stirrer (7), wherein：
The first control module A, which is used to control the first syringe pump (4) according to the first control signal that host computer is sent out, to be inhaled
It takes and push operation, first syringe pump (4) is for drawing standard mother liquid multi-cavity bottle according to first control signal, after absorption
Liquid is pushed to according to first control signal in mixed solution pond (1).
The second control module B, which is used to control the second syringe pump (5) according to the second control signal that host computer is sent out, to be inhaled
It takes and push operation, second syringe pump (5) is used to draw dilution bottle according to second control signal, liquid after absorption
Body is pushed to according to second control signal in mixed solution pond (1).
The third control signal control peristaltic pump (6) that the third control module C is used to be sent out according to host computer is to mixing
Solution pool (1) is aspirated；
The circuit control panel is used to be stirred according to the 4th control signal control magnetic stirrer (7) that host computer is sent out
It mixes；
The Water Test Kits is used to be detected the liquid come in from detection liquid pipe (8), and testing result is uploaded
To host computer；
The host computer is used for the first control module A, the second control module B, third control module C and circuit control
Plate sends out first control signal, second control signal, third control signal and the 4th control signal；The host computer is used simultaneously
In the testing result for receiving Water Test Kits, and the water quality point is obtained with the technical indicator of national verification regulation according to testing result
The judgement of analyzer is reported.
A kind of water quality online analyzer calibration method, includes the following steps：
Step 1, testing staff connects the host computer communication port of the PORT COM of detected Water Test Kits and calibrating installation
It connects, the sampling system of detected Water Test Kits and detection liquid pipe (8) is attached.
Step 2, the standard mother liquid multi-cavity bottle equipped with standard solution mother liquor is connected to the first inlet tube (41)；Dilution will be housed
Dilution bottle be connected to the second inlet tube (51)；Solution concentration after the concentration of standard solution mother liquor and dilution is input to
Host computer.
Step 3, host computer calculates according to the solution concentration after the concentration of standard solution mother liquor and dilution and obtains standard solution
The amount of mother liquor and the amount of dilution, and then obtain the first syringe pump (4) amount of feed and the second syringe pump (5) amount of feed；Host computer
First control signal is sent out to the first control module A according to the first syringe pump (4) amount of feed, is fed according to the second syringe pump (5)
It measures to the second control module B and sends out second control signal, host computer sends out the 4th control signal to circuit control panel, controlled to second
Molding block B sends out the 4th control signal.
Step 4, the first control module A controls the first syringe pump (4) according to first control signal and is drawn from standard mother liquid multi-cavity bottle
Standard solution mother liquor；Second control module B controls the second syringe pump (5) and drawn from dilution bottle according to second control signal to be diluted
Liquid；Second control module B controls the second syringe pump (5) according to second control signal and first notes dilution to mixed solution pond (1)
Enter, then the first control module A controls the first syringe pump (4) by standard solution mother liquor to mixed solution according to first control signal
Pond (1) is injected, and standard solution mother liquor has at least injected when dilution injection is completed.
Step 5, circuit control panel is stirred drive according to the 4th control signal control electromagnet (72) to stirrer (73)
It is dynamic, and then the liquid in mixed solution pond (1) is stirred.
Step 6, after the completion of solution is prepared, computer sends sampling instruction to detected Water Test Kits, is detected water quality
Analyzer carries out sampling operation after receiving instruction to solution in mixed solution pond (1), is detected point of the Water Test Kits by water quality
Analysis information is uploaded to host computer；And the analysis work such as carry out the error of indication, null offset, stability of display, it will after the completion of analysis
Analysis data are sent to computer.
Step 7, host computer is analyzed according to the analysis information for being detected Water Test Kits being detected Water Test Kits
The automatic calibration of detection, and judgement report is generated, data result can trace to the source.
Automatic calibration refers to the communications protocol that calibrating installation is provided by water quality online analyzer manufacturing enterprise, realization pair
The instruction transmission of instrument and data receiver, by preset program complete to " error of indication " of instrument, " null offset ",
The detection work of projects such as " stability of display ", calibration item can be adjusted according to by the difference of test examination instrument, be not limited to above-mentioned
Three.It is automatic to refer to after experimenter's selection carries out experiment option, in entire calibration process, tried without artificial replace
Agent, without it is artificial it is on duty, be not necessarily to manual record data.Whole process is automatically performed by calibrating installation.
The host computer includes the error of indication, null offset, indicating value to the project for being detected Water Test Kits analysis detection
Stability.
The testing process and computational methods (COD) of 7.1 errors of indication
After Water Test Kits stable operation, it is C to import mass concentration successivelySThe COD standards of (50,150,500mg/L)
Solution measures respectively, each solution continuously measures 3 times, and the error of indication is calculated as follows：
Wherein, Δ C indicates the error of indication,It indicates to be detected Water Test Kits measurement of concetration average value, CsAfter indicating dilution
Solution concentration.
The testing process and computational methods (COD) of 7.2 null offsets：
After Water Test Kits stable operation, the first syringe pump (4), the second syringe pump (5) are controlled to mixed by computer
It closes solution pool (1) and prepares zero point correction liquid, prepared zero point correction liquid is imported and is detected Water Test Kits measurement zero school
Quasi- liquid records the initial zero value Z of measurement0, in 4h a zero point correction is imported to detected Water Test Kits every 30min
Liquid measures zero indicating value Zi, take and deviate Z0Maximum zero indicating value ZiAs maximum zero indicating value Zmax, by maximum zero indicating value
ZmaxWith initial zero value Z0Difference as null offset.
7.3 show the testing process and computational methods (COD) for referring to stability：
After Water Test Kits stable operation, the first syringe pump (4), the second syringe pump (5) are controlled to mixed by computer
It closes solution pool (1) and prepares Standard Calibration Solutions；Prepared Standard Calibration Solutions are imported to detected Water Test Kits, record is just
Beginning measured value S0, continuous operation is for 24 hours；A Standard Calibration Solutions are imported to detected Water Test Kits every 1h interior for 24 hours, are surveyed
Measured value Si is obtained, takes and deviates the maximum measured value Si of initial measurement S0 as greatest measurement Smax, according to following formula meter
Calculate stability of display：
Δ S indicates stability of display, SmaxIndicate greatest measurement, S0Indicate initial measurement.
The error of indication, null offset, stability of display's index are to measure the evaluation index of specification Instrumental metering performance, people
When work is evaluated, needs artificial 40 hours on duty and handle data, this calibrating installation is alternative to be manually automatically performed above-mentioned metering performance
Appraisal.
The utility model corresponding difference of difference detection project in detection process to the same Water Test Kits to be detected
The replacement of the detection solution of concentration realizes that there is no need to manually replace examination by the automatic function equipment of solution of calibrating installation
Agent, at the same the utility model using same device proportioning various concentration detection solution, reduce null offset, stability of display and
The human error of error of indication testing result.
In addition computer or other central processing units may be used in the host computer of the utility model, and each function can pass through
It is based on Windows And WinOperating system is realized, transmittable to do sample instruction and receive data, and will
Data processing calculate after formed report and can provide Water Test Kits to be detected whether qualification conclusion.
Step 8, after the completion of some detectable concentration solution detects, host computer sends out third control to third control module C
The waste liquid in solution mixing pit is discharged for signal, third control module C control peristaltic pumps, and waste liquid closes peristaltic pump after excluding, into
The preparation of the next detectable concentration point of row；
Further include to the cleaning of solution mixing pit and dry, side before next detectable concentration point is prepared after waste liquid discharge
Method is as follows：It controls template B and controls the second syringe pump (5) from dilution bottle absorption dilution, be injected into mixed solution pond (1),
Host computer sends out the 4th control signal to circuit control panel, starts magnetic stirrer (7) and is cleaned to mixed solution pond (1),
Cleaning finishes, and controlling signal by third controls peristaltic pump discharge, so clean 3 times or more；Finally, signal is controlled by third
Peristaltic pump is opened in control, passes through the 4th control signal enabling magnetic stirrer (7) so that stirrer (73) rotates, and then quickly
Dry mixed solution pool (1).
The solution uncertainty that the utility model is diluted based on calibrating installation is less than 3% (k=2), and can by with
The mode that national grade ii standard substance compares is traced to the source to National primary standard, therefore its Data Data result can trace to the source.
In the present embodiment, first syringe pump (4) of the utility model and the second syringe pump (5) use constant displacement pump, quantitative
Pump volume：10ml, when constant displacement pump specification selects between 5ml, 10ml and 25ml, experiments have shown that quantitative injection pump uses two
The specification of 10ml, operability, the precision highest of solution preparation.Constant displacement pump precision：2uL/ is walked.Constant displacement pump motor speed can basis
Actual needs adjustment, this instrument use speed for 30 revs/min (adjustable), experiments have shown that the pump under the speed pushes volume accuracy
Highest.
Reset mode：Constant displacement pump is mounted with optoelectronic switch in maximum push point (i.e. reset position), first with constant displacement pump before liquid
It resets, to ensure before preparing solution every time, without being full of dilution in remaining liquid, each pipeline in constant displacement pump.
Remaining liquid control in pipeline：In process for preparation, when carrying out constant displacement pump push, pipeline remains that liquid is full of
State, and by program optimization, remain that the push of mother liquor is first completed, the push of dilution finally completes, and ensures pipeline
The liquid being inside full of is always dilution (pure water), improves and prepares repdocutbility, to achieve the purpose that control accuracy.
While taking into account efficiency, the pipeline of latus rectum 2mm is selected, connecting line overall length is short as possible, and caliber is as small as possible, subtracts
Few dead volume.Each component is connected by the polytetrafluoro pipe of high temperature resistant, soda acid, and pipe interface is by the way of pressure ring sealing, therefore
Junction contact area is small, and dead volume is small.Compared with raw material band sealing means, leakproofness is more reliable, and operability is more convenient, whole
It is a make sample during, this connection type makes pipeline be completely fixed, non-loosening phenomenon, reduce detection failure rate.Polytetrafluoro pipe ruler
Very little is 2.85*1.25mm.
Calibrating installation matches liquid, is examined through potassium bichromate solution absorbance, and solution prepares error and is less than ± 2%, whole system
There are system deviations, and repeated property experiment is when host computer generates first control signal and second control signal at this time, middle introducing
System improvement factor K can reduce mechanical liquid mixing system error so that global error is better than ± 1%.
The water quality online analyzer of the utility model includes being not limited to COD (COD) in-line analyzer, ammonia nitrogen
In-line analyzer etc. is joined applied to the live non-laboratory of water head site, discharge of industrial wastes mouth, water body environment monitoring point using water quality
Number analytical instrument.
The utility model can one be pushed to field calibration Water Test Kits, the mobility of calibrating installation ensures analysis
When solution it is now with the current, compared with traditional artificial preparation solution is brought to field assay, it is no longer necessary to consider low concentration detect
The site requirements that the preservation problem and solution of solution are prepared, solution prepare reproducibility higher.
The utility model realizes the Full-automatic calibration to water quality online analyzer, it is unattended according to predetermined criteria
Or (such as national metrological verification regulations, the technical specifications such as calibrating standard) are required, to all measuring indexs of water quality online analyzer
A series of continuous continual analysis tests are carried out, gathered data simultaneously carries out analyzing processing, and judges whether calibration result accords with
Relevant index request is closed, corresponding original calibrated report is generated.The reserved output port with external data communication realizes calibration
As a result long-range acquisition prepares.Whole process realizes intelligent processing, is not necessarily to manual intervention completely.Meanwhile device has certainly
The function of dynamic maintenance, running clearance or standby mode being capable of automatic clean and maintenance, lifting device reliability of operation and stabilization
Property.
The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of liquid mixing equipment, it is characterised in that：Including solution mixing pit (1), mixing pit inlet tube (2), the first injection
Pump (4), the first inlet tube (41), the first outlet tube (42), the second syringe pump (5), the second inlet tube (51), the second outlet tube
(52), magnetic stirrer (7), wherein：
The liquid feeding end of first syringe pump (4) by the first inlet tube (41) with standard mother liquid multi-cavity bottle for being connect, and outlet end
It is connected to solution mixing pit (1) by the first outlet tube (42)；The liquid feeding end of second syringe pump (5) be used for by second into
Liquid pipe (51) is connect with dilution bottle, and outlet end is connected to by the second outlet tube (52) with solution mixing pit (1)；The solution
Mixing pit (1) includes with open major trough body (11), capping (12), and the capping (12) is used to cover in the spacious of major trough body (11)
On mouth, major trough body (11) is closed；Major trough body (11) bottom is provided with feed pathway (111), detection liquid flow pass (112)
And apocenosis passage (113)；
The magnetic stirrer (7) includes electromagnet fixed seat (71), electromagnet (72), stirrer (73), and the electromagnet is solid
Reservation (71) is used to electromagnet (72) being fixed on the bottom of major trough body (11), and the stirrer (73) is set to major trough body
(11) interior intracavitary.
2. liquid mixing equipment according to claim 1, it is characterised in that：Further include Y-type three way type (3), the Y-type three way type
(3) it is the pipe fitting of two import one outlets, respectively the first inlet tube, the second inlet tube and first outlet pipe；It is described mixed
It closes pond inlet tube (2) one end to connect with first outlet pipe, the other end is connect with solution mixing pit (1)；First outlet tube
(42) one end, first go out liquid check valve (44) and the first inlet tube is sequentially connected, and first outlet tube (42) is another
One end is connect with the outlet end of standard mother liquid multi-cavity bottle；One end of second outlet tube (52), second go out liquid check valve (54) and
Second inlet tube is sequentially connected, and the other end of second outlet tube (52) is connect with the outlet end of dilution bottle；Described
Junction between one inlet tube and the first outlet tube (42) is provided with the first feed liquor check valve (43) for preventing liquid reflux, institute
The junction for stating the second inlet tube and the second outlet tube (52) is provided with the second feed liquor check valve (53) for preventing liquid reflux.
3. liquid mixing equipment according to claim 2, it is characterised in that：Described first, which goes out liquid check valve (44) closing mouth, arrives
The distance L of first inlet tube outlet goes out liquid check valve (44) outlet end caliber R less than 4 times first；Described second goes out liquid check valve
(54) closing mouth goes out liquid check valve (54) outlet end caliber R to the distance L that the second inlet tube exports less than 4 times second.
4. liquid mixing equipment according to claim 2, it is characterised in that：Between first inlet tube, the second inlet tube
Angle angle be 45 °.
5. liquid mixing equipment according to claim 1, it is characterised in that：The inlet of the apocenosis passage (113) is located at
The bottom of major trough body (11) inner cavity, and the inlet of the feed pathway (111) is higher than the feed liquor of detection liquid flow pass (112)
Mouthful, while the inlet of the apocenosis passage (113) is less than the inlet of detection liquid flow pass (112), the detection liquid stream
Go out channel (112) for connecting inspection by sampling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619960.1U CN207667571U (en) | 2017-11-28 | 2017-11-28 | A kind of liquid mixing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619960.1U CN207667571U (en) | 2017-11-28 | 2017-11-28 | A kind of liquid mixing equipment |
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| CN207667571U true CN207667571U (en) | 2018-07-31 |
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ID=62965749
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| CN201721619960.1U Expired - Fee Related CN207667571U (en) | 2017-11-28 | 2017-11-28 | A kind of liquid mixing equipment |
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| CN (1) | CN207667571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144511A (en) * | 2017-11-28 | 2018-06-12 | 江苏省计量科学研究院 | A kind of solution mixing arrangement and mixed method |
| CN111487115A (en) * | 2020-03-26 | 2020-08-04 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Pneumatic solution dilution and distribution device |
-
2017
- 2017-11-28 CN CN201721619960.1U patent/CN207667571U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144511A (en) * | 2017-11-28 | 2018-06-12 | 江苏省计量科学研究院 | A kind of solution mixing arrangement and mixed method |
| CN111487115A (en) * | 2020-03-26 | 2020-08-04 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Pneumatic solution dilution and distribution device |
| CN111487115B (en) * | 2020-03-26 | 2021-03-26 | 江苏省计量科学研究院(江苏省能源计量数据中心) | Pneumatic solution dilution and distribution device |
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Granted publication date: 20180731 Termination date: 20201128 |