CN207516351U - A kind of liquid line - Google Patents
A kind of liquid line Download PDFInfo
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- CN207516351U CN207516351U CN201721619774.8U CN201721619774U CN207516351U CN 207516351 U CN207516351 U CN 207516351U CN 201721619774 U CN201721619774 U CN 201721619774U CN 207516351 U CN207516351 U CN 207516351U
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- check valve
- inlet tube
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Abstract
The utility model discloses a kind of liquid lines, go out liquid check valve (44) including mixing pit inlet tube (2), Y-type three way type (3), the first outlet tube (42), first, the second outlet tube (52), second go out liquid check valve (54), first, control second liquid goes out liquid check valve (54) by second and is flowed away to Y-type three way type (3).After second liquid flows into mixing pit inlet tube (2), the first liquid of control goes out liquid check valve (44) by first and is flowed away to Y-type three way type (3).When the injection of the first liquid finishes, continue that second liquid is controlled to flow into mixing pit inlet tube (2), the utility model can effectively reduce dead volume, prevent the influence of Liquid Residue, and it is high to prepare solution precision.
Description
Technical field
The utility model is related in a kind of liquid line design method more particularly to a kind of Water Test Kits calibrating installation
The design of liquid line.
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
Liquid line in analyzer calibrating installation is to influence the big factor that calibrating installation solution is prepared.
Utility model content
Purpose of utility model：In order to overcome the deficiencies in the prior art, the utility model provides a kind of solution and prepares
Liquid line and water-flow control method with high accuracy.
Technical solution：To achieve the above object, the technical solution adopted in the utility model is：
A kind of liquid line goes out liquid list including mixing pit inlet tube (2), Y-type three way type (3), the first outlet tube (42), first
Go out liquid check valve (54) to valve (44), the second outlet tube (52), second, wherein：
Pipe fitting of the Y-type three way type (3) for two import one outlets, respectively the first inlet tube, the second inlet tube with
And first outlet pipe.Described mixing pit inlet tube (2) one end is connect with first outlet pipe, and the other end is connect with mixing pit.It is described
One end of first outlet tube (42), first go out liquid check valve (44) and the first inlet tube is sequentially connected, and described first goes out liquid
The other end of pipe (42) is connect with the port of export of standard mother liquid multi-cavity bottle.One end of second outlet tube (52), second to go out liquid unidirectional
Valve (54) and the second inlet tube are sequentially connected, and the other end of second outlet tube (52) and the port of export of dilution bottle connect
It connects.Described first goes out liquid check valve (44) closing mouth goes out liquid check valve to the distance L that the first inlet tube exports less than 4 times first
(44) port of export caliber R.
Preferably：First outlet tube (42) connect with the port of export of standard mother liquid multi-cavity bottle.
Preferably：Second outlet tube (52) connect with the port of export of dilution bottle.
Preferably：Described second, which goes out liquid check valve (54), closes mouth to the distance L that the second inlet tube exports less than 4 times second
Go out liquid check valve (54) port of export caliber R.
A kind of water-flow control method of liquid line, includes the following steps：
Step 1, control second liquid goes out liquid check valve (54) by second and is flowed away to Y-type three way type (3).
Step 2, after second liquid flows into mixing pit inlet tube (2), the first liquid of control goes out liquid check valve by first
(44) it is flowed away to Y-type three way type (3).
Step 3, when the injection of the first liquid finishes, continue that second liquid is controlled to flow into mixing pit inlet tube (2).
Preferably：In step 2 first liquid by first go out liquid check valve (44) to Y-type three way type (3) flow away when, control the
Two liquid go out liquid check valve (54) by second and are flowed away to Y-type three way type (3) so that second liquid passes through Y together with the first liquid
Type threeway (3) is entered in mixing pit inlet tube (2).Alternatively, in step 2 first liquid by first go out liquid check valve (44) to
When Y-type three way type (3) flows away, stop second liquid and go out liquid check valve (54) to Y-type three way type (3) diffluence by second so that second
Liquid is individually entered by Y-type three way type (3) in mixing pit inlet tube (2).
Preferably：In step 3, when the injection of the first liquid finishes, continue that second liquid is controlled to flow into mixing pit inlet tube
(2) amount of the second liquid at least accounts for 1/5th of the amount of entire second liquid.
The utility model compared with prior art, has the advantages that：
The liquid line and water-flow control method of the utility model, can effectively reduce dead volume, prevent the shadow of Liquid Residue
It rings, it is high to prepare solution precision.
Description of the drawings
Fig. 1 is the principle schematic of water quality online analyzer self-checking device；
Fig. 2 is the workflow schematic diagram of water quality online analyzer self-checking device；
Fig. 3 is the structure diagram of water quality online analyzer self-checking device；
Fig. 4 is the structure 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 structure diagram；
Fig. 8 is the principle schematic of the utility model.
Specific embodiment
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 the utility model has been read, 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 line, as shown in figure 8, including mixing pit inlet tube (2), Y-type three way type (3), the first outlet tube (42),
First goes out liquid check valve (44), the second outlet tube (52), second goes out liquid check valve (54), wherein：
Pipe fitting of the Y-type three way type (3) for two import one outlets, respectively the first inlet tube, the second inlet tube with
And first outlet pipe.Described mixing pit inlet tube (2) one end is connect with first outlet pipe, and the other end is connect with mixing pit.It is described
One end of first outlet tube (42), first go out liquid check valve (44) and the first inlet tube is sequentially connected, and described first goes out liquid
The other end of pipe (42) is connect with the port of export of standard mother liquid multi-cavity bottle.One end of second outlet tube (52), second to go out liquid unidirectional
Valve (54) and the second inlet tube are sequentially connected, and the other end of second outlet tube (52) and the port of export of dilution bottle connect
It connects；Described first goes out liquid check valve (44) closing mouth goes out liquid check valve to the distance L that the first inlet tube exports less than 4 times first
(44) port of export caliber R.
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) during port of export 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), go 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) port of export caliber R, described second, which goes out liquid check valve (54), closes mouth to the distance L that the second inlet tube exports less than 4
Second goes out liquid check valve (54) port of export 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 the first inlet tube, there are angles, best angle between the second inlet tube to be
45 °, using PTEF materials, the Y-type three way type of special angle make the connecting line in calibrating installation is as short as possible, dead volume as far as possible
It is small.
A kind of water-flow control method of liquid line, includes the following steps：
Step 1, control second liquid goes out liquid check valve (54) by second and is flowed away to Y-type three way type (3).
Step 2, after second liquid flows into mixing pit inlet tube (2), the first liquid of control goes out liquid check valve by first
(44) it is flowed away to Y-type three way type (3).
When the first liquid goes out liquid check valve (44) by first to be flowed away to Y-type three way type (3), control second liquid passes through the
Two go out liquid check valve (54) flows away to Y-type three way type (3) so that second liquid enters together with the first liquid by Y-type three way type (3)
Into mixing pit inlet tube (2).Alternatively, when the first liquid goes out liquid check valve (44) by first and flowed away to Y-type three way type (3),
Stop second liquid and go out liquid check valve (54) to Y-type three way type (3) diffluence by second so that second liquid individually passes through Y types three
Logical (3) are entered in mixing pit inlet tube (2).
Step 3, when the injection of the first liquid finishes, continue that second liquid is controlled to flow into mixing pit inlet tube (2).When first
When liquid injection finishes, the amount for continuing the second liquid that second liquid is controlled to flow into mixing pit inlet tube (2) at least accounts for entirely
/ 5th of the amount of second liquid.
As shown in figs. 1-7, by the utility model for the configuration of solution in water quality online analyzer self-checking device, institute
It states water quality online analyzer self-checking device and includes host computer, the first control module A, the second control module B, third control mould
Block C, circuit control panel, solution mixing pit (1), the first syringe pump (4), the second syringe pump (5), peristaltic pump (6), magnetic stirrer
(7), detection liquid pipe (8) and liquid line, wherein：
The liquid feeding end of first syringe pump (4) for being connect by the first inlet tube (41) with standard mother liquid multi-cavity bottle
Liquid end is connect by the first outlet tube (42) with the first inlet tube of Y-type three way type (3), the liquid feeding end of second syringe pump (5)
For being connect by the second inlet tube (51) with dilution bottle, and outlet end passes through the second outlet tube (52) and Y-type three way type (3)
Second inlet tube connects.
Check valve use PTEF materials, diaphragm material be fluorubber, latus rectum 2mm, pressure-resistant 0.8mpa.Due to being provided with first
Feed liquor check valve (43), first go out liquid check valve (44), the second feed liquor check valve (53), second go out liquid check valve (54) so that
When extracting test solution, push pipe test solution will not flow back for first syringe pump (4), the second syringe pump (5).Simultaneously when the first syringe pump
(4) when stopping injection, the second syringe pump (5) also in injection, due between the first inlet tube, the second inlet tube there are angle,
The dilution entered from the second inlet tube can rinse the water export of the first inlet tube under the effect of the pressure, form turbulent flow, make
Standard mother liquor in the first inlet tube in dead volume flows out under the turbulent flow of dilution, avoiding first, to go out liquid unidirectional
The dead volume of valve (44) outlet port is influenced with liquid precision.
The first outlet pipe is connected by mixing pit inlet tube (2) with the feed pathway (11) of mixed solution pond (1).Institute
Mixed solution pond (1) is stated including carrying open major trough body (11), capping (12), the capping (12) is for covering in major trough body
(11) in opening, major trough body (11) is closed, star-like handle nut (121), the capping are provided on the capping (12)
(12) place being in contact with opening is provided with sealing ring.The shape of the hollow groove of the major trough body (11) is infundibulate, described
Feed pathway (111), detection liquid flow pass (112) and apocenosis passage (113), the drain are provided on major trough body (11)
The inlet of channel (113) is located at the bottom of hollow groove, and the inlet of the feed pathway (111) go out higher than detection liquid stream it is logical
The inlet in road (112), while the inlet of the apocenosis passage (113) is less than the inlet of detection liquid flow pass (112),
The detection liquid flow pass (112) is detected liquid pipe (8) and is connected with Water Test Kits inlet for passing through.
The utility model is set to the bottom of hollow groove using feed pathway (111) so that dilution and standard mother liquor from
Mixed solution pond (1) bottom enters mixed solution pond (1), when preventing the rotation of stirrer 73 in this way, by dilution and standard mother liquor
It beats and flies on mixed solution pond (1) inner wall, 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,
Top is capped simultaneously, this structure can reduce the influence of the evaporation of solution, mixing pool wall solution wall built-up phenomenon to precision preparation.
The detection liquid flow pass (112) of the utility model is similarly provided at the bottom of hollow groove, and pipeline is in a manner of pressure ring
It seals and connects, this structure can improve solution utilization rate and the stability of pipeline.In addition this structure can also exist in stirrer 73
During work, it can be sampled from mixed solution pond (1), when avoiding stirrer 73 and being stopped, mixed solution generates depositional phenomenon,
Influence the analysis of Water Test Kits.In addition, from during detection liquid flow pass (112) sampling, to remove the waste sample of front half section, prevent
Only detection liquid flow pass (112), the dead volume detected in liquid pipe (8) remain, and influence the analysis of Water Test Kits.
The inlet of apocenosis passage (113) is set to the bottom of hollow groove, it can be ensured that the abundant discharge of waste liquid.
The magnetic stirrer (7) includes electromagnet fixed seat (71), electromagnet (72), stirrer (73), the electromagnetism
Ferropexy seat (71) for electromagnet (72) to be fixed on to the bottom of major trough body (11), and the stirrer (73) be set to it is hollow
In slot.
The utility model uses magnetic stirrer (7), and there are two purposes, and one is to speed up the mixing of solution, and two are to speed up leading
The drying of groove body (11).When solution mixes, since stirrer (73) rotates under electromagnet (72) effect, pass through stirrer
(73) rotation so that solution mixes evenly.It when dry, rotated by stirrer (73) and generates wind, the wind of generation exists
Hollow groove rotation in major trough body (11), accelerates the evaporation of solution on major trough body (11) inner wall, then passes through the pumping of peristaltic pump (6)
Suction acts on, and humid air from major trough body (11) is extracted out, therefore accelerate the drying of major trough body (11), raffinate is avoided to influence next
The configuration precision of secondary solution.
The first control module A is used to the first syringe pump (4) be controlled to inhale according to the first control signal that host computer is sent out
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 is used to the second syringe pump (5) be controlled to inhale according to the second control signal that host computer is sent out
It takes and push operation, second syringe pump (5) is for drawing 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, and testing result is uploaded the liquid come in from detection liquid pipe (8)
To host computer；
The host computer is used to control the first control module A, the second control module B, third control module C and circuit
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 report of analyzer.
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 with the first inlet tube (41)；Dilution will be housed
Dilution bottle connected with 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) to be drawn from standard mother liquid multi-cavity bottle according to first control signal
Standard solution mother liquor；Second control module B controls the second syringe pump (5) to draw dilution from dilution bottle according to second control signal
Liquid；Second control module B controls the second syringe pump (5) first to note dilution to mixed solution pond (1) according to second control signal
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 Water Test Kits by point of water quality
Analysis information is uploaded to host computer；And the analysis work such as the error of indication, null offset, stability of display is carried out, 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, without manually replacing examination
Agent, without it is artificial it is on duty, without 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 represents the error of indication,It represents to be detected Water Test Kits measurement of concetration average value, CSAfter representing 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 finger testing process of stability and computational methods (COD)：
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, the measured value Si for deviateing initial measurement S0 maximums is taken as greatest measurement Smax, according to the following formula meter
Calculate stability of display：
Δ S represents stability of display, SmaxRepresent greatest measurement, S0Represent 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, need 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 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 onWindowsAnd WinOperating system is realized, transmittable to do sample instruction and receive data, and by data
Processing calculate after formed report and can provide Water Test Kits to be detected whether qualification conclusion.
Step 8, after the completion of the detection of some detectable concentration solution, host computer sends out third control to third control module C
Signal, third control module C control peristaltic pump to discharge the waste liquid in solution mixing pit, and waste liquid closes peristaltic pump after excluding, into
The preparation of the next detectable concentration point of row；
Before next detectable concentration point is prepared after waste liquid discharge, further include to the cleaning of solution mixing pit and dry, side
Method is as follows：Control architecture B controls the second syringe pump (5) to draw dilution from dilution bottle, is injected into mixed solution pond (1),
Host computer sends out the 4th control signal to circuit control panel, starts magnetic stirrer (7) and mixed solution pond (1) is cleaned,
Cleaning finishes, and controls signal that peristaltic pump is controlled to discharge by third, so cleaning 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 quick
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) are quantitative using constant displacement pump
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 as 30 revs/min (adjustable), experiments have shown that the pump push volume accuracy under the speed
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 efficiency is taken into account, 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 mode is completely fixed pipeline, 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, artificial prepared compared with solution brings to field assay with traditional, it is no longer necessary to consider that low concentration detects
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 requirement (technical specifications such as such as national metrological verification regulations, calibrating standard), to all measuring indexs of water quality online analyzer
A series of continuous continual analysis tests are carried out, gathered data is simultaneously analyzed and processed, and judges whether calibration result accords with
Relevant index request is closed, generates corresponding original calibrated report.The reserved output port with external data communication realizes calibration
As a result long-range acquisition prepares.Whole process realizes intelligent processing, completely without manual intervention.Meanwhile device has certainly
The function of dynamic maintenance, being capable of automatic clean and maintenance, lifting device reliability of operation and stabilization in running clearance or standby mode
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, under the premise of the utility model principle is not departed from, 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 line, it is characterised in that：Including mixing pit inlet tube (2), Y-type three way type (3), the first outlet tube (42),
First goes out liquid check valve (44), the second outlet tube (52), second goes out liquid check valve (54), wherein：
Pipe fitting of the Y-type three way type (3) for two import one outlets, respectively the first inlet tube, the second inlet tube and the
One outlet；Described mixing pit inlet tube (2) one end is connect with first outlet pipe, and the other end is connect with mixing pit；Described first
One end of outlet tube (42), first go out liquid check valve (44) and the first inlet tube is sequentially connected, and first outlet tube
(42) the other end is connect with the port of export of standard mother liquid multi-cavity bottle；One end of second outlet tube (52), second go out liquid check valve
(54) and the second inlet tube is sequentially connected, and the other end of second outlet tube (52) and the port of export of dilution bottle connect
It connects；Described first goes out liquid check valve (44) closing mouth goes out liquid check valve to the distance L that the first inlet tube exports less than 4 times first
(44) port of export caliber R.
2. liquid line according to claim 1, it is characterised in that：First outlet tube (42) goes out with standard mother liquid multi-cavity bottle
The connection of mouth end.
3. liquid line according to claim 1, it is characterised in that：Second outlet tube (52) and the outlet of dilution bottle
End connection.
4. liquid line according to claim 1, it is characterised in that：Described second, which goes out liquid check valve (54), closes mouth to second
The distance L of inlet tube outlet goes out liquid check valve (54) port of export caliber R less than 4 times second.
5. liquid line according to claim 1, it is characterised in that：Folder between first inlet tube, the second inlet tube
The angle at angle is 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619774.8U CN207516351U (en) | 2017-11-28 | 2017-11-28 | A kind of liquid line |
Applications Claiming Priority (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942022A (en) * | 2017-11-28 | 2018-04-20 | 江苏省计量科学研究院 | A kind of anti-dead volume pipeline and water-flow control method |
| USD886236S1 (en) | 2018-05-16 | 2020-06-02 | Bradley Fixtures Corporation | Housing for multiple valves |
| US11060628B2 (en) | 2018-05-16 | 2021-07-13 | Bradley Fixtures Corporation | Housing for multiple mixing valves |
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2017
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942022A (en) * | 2017-11-28 | 2018-04-20 | 江苏省计量科学研究院 | A kind of anti-dead volume pipeline and water-flow control method |
| USD886236S1 (en) | 2018-05-16 | 2020-06-02 | Bradley Fixtures Corporation | Housing for multiple valves |
| USD917013S1 (en) | 2018-05-16 | 2021-04-20 | Bradley Fixtures Corporation | Housing for multiple valves |
| US11060628B2 (en) | 2018-05-16 | 2021-07-13 | Bradley Fixtures Corporation | Housing for multiple mixing valves |
| USD958937S1 (en) | 2018-05-16 | 2022-07-26 | Bradley Fixtures Corporation | Housing for multiple valves |
| US11920691B2 (en) | 2018-05-16 | 2024-03-05 | Bradley Fixtures LLC | Housing for multiple mixing valves |
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