CN107831328A - A kind of timesharing injecting systems and water quality on-line monitoring instrument device - Google Patents
A kind of timesharing injecting systems and water quality on-line monitoring instrument device Download PDFInfo
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- CN107831328A CN107831328A CN201711277626.7A CN201711277626A CN107831328A CN 107831328 A CN107831328 A CN 107831328A CN 201711277626 A CN201711277626 A CN 201711277626A CN 107831328 A CN107831328 A CN 107831328A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1004—Cleaning sample transfer devices
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Abstract
The invention provides a kind of timesharing injecting systems and water quality on-line monitoring instrument device.Timesharing injecting systems include sample injection pump, reagent injector pump, developmental tube and control system.Sample injection pump is used for sample injection, and reagent injector pump is used to inject reagent, and developmental tube is used for composite sample and reagent.Sample injection pump and reagent injector pump respectively by the first conduit with developmental tube is closed connects, the first magnetic valve is provided with the first all conduits, and the first check valve is being provided with close to the position of developmental tube, the first check valve turns on to the direction of developmental tube feed liquor.Control system connects respectively and Control Assay syringe pump, reagent injector pump and the first magnetic valve.Closed connection between all parts of timesharing adapted to injection system, it can be used in any angle optional position, it is easy to use.The first check valve is being set close to the position of developmental tube in the first conduit, can avoided when the first magnetic valve is opened, the solution reverse flow in developmental tube.
Description
Technical field
The present invention relates to the technical field of water quality monitoring equipment, more particularly to a kind of timesharing injecting systems and water quality to supervise online
Survey instrument.
Background technology
, it is necessary to measure aluminum ions content in the water quality detection at Drinking Water and its water source.Existing detection is general
Using Chrome azurol s colorimetry, measuring principle is：In the range of pH6.7~7.0, aluminium ion is in polyethylene glycol octyl group phenylate
Glaucous quaternary micella is generated with chrome azurol S reaction with the presence of bromide sixteen alkyls pyridine, recycles colorimetric analysis, root
According to the light transmittance of solution, it can quantify and obtain aluminum ions content.Existing detection method be typically all sample after respectively according to
Operating procedure, sample and corresponding reagent are sequentially added into colorimetric cylinder, looked into after finally measuring absorbance, and standard curve
Go out the content of aluminium.Such a method needs the patient and painstaking experiment of staff, and detection process is cumbersome.
In order to mitigate the labor intensity of staff, in the prior art, automatic checkout system is also devised, pass through magnetic valve
With the cooperation of the pump housing, corresponding reagent and sample are sequentially added.The automatic detection water system of prior art normally only sets electromagnetism
Valve, when magnetic valve is opened, solution may be flowed back, and developmental tube is exposed setting, and whole system must be put according to assigned direction
Put, be just avoided that solution flows out, it is inconvenient for use.
The content of the invention
The first object of the present invention is to propose a kind of timesharing injecting systems, solution can be avoided to flow back, and easy to use.
To use following technical scheme up to this purpose, the present invention：
A kind of timesharing injecting systems, including：
Sample injection pump, for sample injection；
Reagent injector pump, for injecting reagent；
Developmental tube, for composite sample and reagent, sample injection pump and reagent injector pump respectively by the first conduit with
The closed connection of developmental tube, the first magnetic valve is provided with the first all conduits, and is respectively provided with the position close to developmental tube
There is the first check valve, the first check valve turns on to the direction of developmental tube feed liquor；With
Control system, respectively connection and Control Assay syringe pump, reagent injector pump and the first magnetic valve.
Wherein, timesharing injecting systems also include wiper mechanism, and cleaning structure is used to clean developmental tube, and wiper mechanism includes：
Second conduit, for supplying cleaning fluid, the second conduit with developmental tube is closed connects, be provided with second on the second conduit
Magnetic valve, and the position of developmental tube is being provided with the second check valve, the second check valve turns on to the direction of developmental tube feed liquor；
With
First peristaltic pump, it is connected with the second conduit, for driving the cleaning fluid flowing in the second conduit；
Second solenoid valve and the first peristaltic pump are connected with control system.
Wherein, wiper mechanism also includes：
3rd conduit, one end can connect with common gases conduit or hot gas conduit, to supply normal air or hot-air, separately
One end with developmental tube is closed connects, be provided with the 3rd magnetic valve on the 3rd conduit；With
Second peristaltic pump, it is connected with the 3rd conduit, for driving the gas flowing in the 3rd conduit；
3rd magnetic valve and the second peristaltic pump are connected with control system.
Wherein, timesharing injecting systems also include photodetector unit, for detecting the light transmittance of liquid in developmental tube, photoelectricity
Detection unit by the 4th conduit with developmental tube is closed connects, the 4th magnetic valve is provided with the 4th conduit, and close to experiment
The position of pipe is provided with the 3rd check valve, and the direction that the 3rd check valve goes out liquid along developmental tube turns on；
4th magnetic valve is connected with control system.
Wherein, one end of developmental tube is connected with the 4th conduit, and the other end connects with the 3rd conduit, and the first conduit and second is led
Pipe connects with the side of developmental tube respectively.
Wherein, timesharing injecting systems also include the second detection unit, for detecting the PH and/or temperature of liquid in developmental tube
Degree, the second detection unit by the 5th conduit with developmental tube is closed connects, be provided with the 5th magnetic valve on the 5th conduit, and by
The position of nearly developmental tube is provided with the 4th check valve, and the direction that the 4th check valve goes out liquid along developmental tube turns on；
5th magnetic valve is connected with control system.
Wherein, the side of developmental tube is communicated with sewer pipe, and sewer pipe is used to discharge waste liquid, and the 6th electricity is provided with sewer pipe
Magnet valve, and the position of developmental tube is being provided with the 5th check valve, the direction that the 5th check valve goes out liquid along developmental tube turns on；
6th magnetic valve is connected with control system.
Wherein, sample injection pump and reagent injector pump are precise injection pump, and precise injection pump includes：
Injection-tube, one end are provided with inlet and liquid outlet；
Piston, slidably and what is sealed is arranged in injection-tube, and the afterbody of piston is connected with piston rod；
Lead-screw drive mechanism, include the screw mandrel and nut of mutual cooperation, moving direction of the screw mandrel along piston rod is set, nut
Fixed with piston rod；
Stepper motor, it is connected with screw mandrel；With
Grating scale, mobile terminal and the nut of grating scale are fixed；
Stepper motor and grating scale are connected with control system.
Wherein, precise injection pump also includes：
Fixed mount, for the fixing end of fixed grating chi, injection-tube and stepper motor；
Connecting rod, fixed respectively with nut and piston rod；With
Two travel switches, it is respectively arranged at two extreme positions of the moving direction of connecting rod, travel switch and control
System connection processed.
The second object of the present invention is to propose a kind of water quality on-line monitoring instrument device, can be with on-line real time monitoring water quality.
To use following technical scheme up to this purpose, the present invention：
A kind of water quality on-line monitoring instrument device, including above-mentioned timesharing injecting systems, sample injection pump lead to pre-detection water quality
Cross water pipe connection.
Beneficial effect：The invention provides a kind of timesharing injecting systems, including sample injection pump, reagent injector pump, experiment
Pipe and control system.Sample injection pump is used for sample injection, and reagent injector pump is used to inject reagent, and developmental tube is used for composite sample
And reagent.Sample injection pump and reagent injector pump respectively by the first conduit with developmental tube is closed connects, all first leads
It is provided with the first magnetic valve on pipe, and the first check valve is being provided with close to the position of developmental tube, the first check valve is to examination
Test the direction conducting of pipe feed liquor.Control system connects respectively and Control Assay syringe pump, reagent injector pump and the first magnetic valve.
Closed connection between all parts of timesharing adapted to injection system, it can be used in any angle optional position, it is easy to use.Closed
Timesharing injecting systems in, the first conduit close to developmental tube position set the first check valve, can be completely by developmental tube
It is closed, avoid when the first magnetic valve is opened, the solution reverse flow in developmental tube.
Present invention also offers a kind of water quality on-line monitoring instrument device, sample injection pump and pre-detection water quality are connected by water pipe
Connect, can be easily to water quality real time automatic detection.
Brief description of the drawings
Fig. 1 is the structural representation for the timesharing injecting systems that embodiments of the invention 1 provide.
Fig. 2 is the shaft side figure for the timesharing injecting systems that embodiments of the invention 1 provide.
Fig. 3 is the partial enlarged drawing at Fig. 2 A.
Fig. 4 is the structural representation for the precise injection pump that embodiments of the invention 1 provide.
Wherein：
1- sample injection pumps, 2- reagent injector pumps, 3- developmental tubes, the conduits of 41- first, the conduits of 42- second, 43- the 3rd are led
Pipe, the conduits of 44- the 4th, the conduits of 45- the 5th, 46- sewer pipes, the magnetic valves of 51- first, 52- second solenoid valves, the electromagnetism of 53- the 3rd
Valve, the magnetic valves of 54- the 4th, the magnetic valves of 55- the 5th, the magnetic valves of 56- the 6th, the check valves of 61- first, the check valves of 62- second, 63-
3rd check valve, the check valves of 64- the 4th, the check valves of 65- the 5th, the peristaltic pumps of 71- first, the peristaltic pumps of 72- second, the inspection of 81- photoelectricity
Survey unit, 91- injection-tubes, 92- piston rods, 931- screw mandrels, 932- nuts, 94- stepper motors, 95- grating scales, 96- fixed mounts,
97- connecting rods, 98- travel switches.
Embodiment
For make present invention solves the technical problem that, the technical scheme that uses and the technique effect that reaches it is clearer, below
Technical scheme is further illustrated with reference to accompanying drawing and by embodiment.
As shown in Figure 1 to 4, the embodiment provides a kind of timesharing injecting systems, can with timesharing in order from
Dynamic addition is molded corresponding sample and reagent, mitigates the amount of labour of staff.
As shown in FIG. 1 to 3, timesharing injecting systems include sample injection pump 1, reagent injector pump 2, developmental tube 3 and control
System.Sample injection pump 1 is used for sample injection, such as, running water etc..Reagent injector pump 2 is used to inject reagent, reagent injector pump
2 quantity is determined by the reagent type in corresponding method of detection.Such as, it is necessary to use hydrogen fluorine in Chrome azurol s colorimetry
The plurality of reagents such as acid, nitric acid, sulfuric acid, hydrochloric acid, ascorbic acid, hexamethylenetetramine solution, Chromazurol-S ethanol solution, then at least
Need the reagent injector pump 2 of respective numbers.In the present embodiment, 7 reagent injector pumps 2 are provided with.In addition, sample injection pump 1
The structure of syringe pump is used with reagent injector pump 2, is easy to accurately add reagent.
Developmental tube 3 is used for composite sample and reagent, in order to avoid by sample or reagent corrosion, developmental tube 3, sample injection pump
1 and the part that is contacted with corresponding solution of reagent injector pump 2, such as corresponding body, it can be made of polytetrafluoroethylene (PTFE).
Sample injection pump 1 and reagent injector pump 2 respectively by the first conduit 41 with developmental tube 3 is closed connects, it is all
The first magnetic valve 51 is provided with first conduit 41, and the first check valve 61 is provided with the position close to developmental tube 3, the
One check valve 61 turns on to the direction of the feed liquor of developmental tube 3.Closed connection between all parts of timesharing adapted to injection system, can be with office
Angle of anticipating optional position uses, and avoids solution from spilling, easy to use.Set in the first conduit 41 close to the position of developmental tube 3
First check valve 61, can be completely closed by developmental tube 3, avoids when the first magnetic valve 51 is opened, the solution in developmental tube 3 is anti-
To flowing in the first conduit 41.For closed timesharing injecting systems, when the pressure of all parts is inconsistent,
By setting the first check valve 61, it is ensured that the reaction in developmental tube 3 is smoothed out.
Control system connects respectively and Control Assay syringe pump 1, the magnetic valve 51 of reagent injector pump 2 and first, main control
The opening and closing of the injection volume and the first magnetic valve 51 of sample injection pump 1 and reagent injector pump 2 processed.Pass through control system, Ke Yishi
Now corresponding sample and reagent are added into developmental tube 3 according to given time and set order.
In the present embodiment, timesharing injecting systems also include wiper mechanism, are mainly used in cleaning developmental tube 3, to try
Pipe 3 is tested to may be reused.Wiper mechanism includes the second conduit 42 and the first peristaltic pump 71, and the second conduit 42, which is used to supply, to be cleaned
Liquid, the second conduit 42 with developmental tube 3 is closed connects, cleaning fluid is used to clean the developmental tube 3 after the completion of experiment.In this reality
Apply in example, be provided with 71,2 second conduits 42 of 2 second conduits 42 and two the first peristaltic pumps and a kind of cleaning fluid is respectively provided.The
The quantity of two conduits 42 is determined by the species of cleaning fluid, and first peristaltic pump 71 is respectively provided with every second conduit 42.Second
Second solenoid valve 52 is provided with conduit 42, and the position close to developmental tube 3 is provided with the second check valve 62, the second check valve
62 turn on to the direction of the feed liquor of developmental tube 3, avoid cleaning fluid reverse flow.First peristaltic pump 71 is connected with the second conduit 42, is used
In driving the flowing of the cleaning fluid in the second conduit 42, the peristaltic pump 71 of second solenoid valve 52 and first is connected with control system.By
Need not be very accurate in the dosage of cleaning fluid, therefore, herein using the first peristaltic pump 71, the first peristaltic pump 71 need not with it is clear
Washing lotion contacts, and can improve the service life of the first peristaltic pump 71, reduce cost, also simplify the structure of wiper mechanism.
In order to accelerate the cleaning of developmental tube 3, wiper mechanism also includes the 3rd conduit 43 and the second peristaltic pump 72, the 3rd conduit
43 one end can connect with common gases conduit or hot gas conduit, to supply normal air or hot-air.In the present embodiment, the 3rd
Conduit 43 is connected with triple valve, and two other opening of triple valve is connected with common gases conduit and hot gas conduit respectively.3rd
Conduit 43 with developmental tube 3 is closed connects, be provided with the 3rd magnetic valve 53 on the 3rd conduit 43.Second peristaltic pump 72 and the 3rd conduit
43 connections, for driving the gas flowing in the 3rd conduit 43, the 3rd magnetic valve 53 and the second peristaltic pump 72 are and control system
Connection.
By the cooperation of the 3rd conduit 43, the second peristaltic pump 72 and the 3rd magnetic valve 53, be able to will be tested in cleaning fluid
After pipe 3 cleans, continue to be passed through hot-air into developmental tube 3, the dry path of developmental tube 3 and other needs is dried rapidly
It is dry, to be tested next time.In addition, the solution reaction in developmental tube 3 terminates, can be to examination when can be used for detection
Test in pipe 3 and be passed through cold air so that solution moves to corresponding detection unit.In addition, before the test, it can also be led by the 3rd
Pipe 43 is outwards vented, and finally causes to be in negative pressure state in developmental tube 3, under such a state, is advantageous to add sample into developmental tube 3
And reagent, further prevent sample and reagent from reversely flowing out developmental tube 3.Therefore, on the 3rd conduit 43, no longer set unidirectional
Valve.
In the present embodiment, timesharing injecting systems also include photodetector unit 81, and photodetector unit 81 is used to detect
The light transmittance of liquid in developmental tube 3, the detection method for the light transmittance for needing to detect solution, such as aluminium ion in water can be incorporated in
The Chrome azurol s colorimetry of content detection.Photodetector unit 81 by the 4th conduit 44 with developmental tube 3 is closed connects,
The 4th magnetic valve 54 is provided with four conduits 44, and the position close to developmental tube 3 is provided with the 3rd check valve 63, the 3rd is unidirectional
The direction that valve 63 goes out liquid along developmental tube 3 turns on, and prevents liquid from flowing backwards, the 4th magnetic valve 54 is connected with control system.Photoelectric Detection
Unit 81 is typically provided with luminescence unit and light-intensity test unit, and luminescence unit and light-intensity test unit are separately positioned on transparent
The relative both sides of detection pipe, detection pipe by the 4th conduit 44 with developmental tube 3 is closed connects, reacted solution enters detection
Guan Zhong, light intensity of the light-intensity test unit by detection through the light of detection pipe, with reference to the luminous intensity of luminescence unit, you can obtain
Corresponding light transmittance, with corresponding standard curve relatively after, you can obtain the content or concentration of detected ion.
In the present embodiment, one end of developmental tube 3 connects with the 4th conduit 44, and the other end connects with the 3rd conduit 43, has
Beneficial to from the hot-air that the 3rd conduit 43 is passed through from end by whole 3 and the 4th conduit of developmental tube, 44 equal rapid draing, also favorably
The solution reacted is pressed into the 4th conduit 44 in from the normal air that the 3rd conduit 43 is passed through from end.The He of first conduit 41
Side of second conduit 42 respectively with developmental tube 3 connects, and is advantageous to quickly mix after reagent and sample enter from the sidepiece of developmental tube 3
Close.
In addition, timesharing injecting systems also include the second detection unit, the second detection unit can be PH (hydrogen ion
Concentration, hydrogen ionexponent) tester, detect developmental tube 3 in liquid PH.Second detection unit may be used also
To be temperature sensor, the temperature of liquid in developmental tube 3 is detected.Second detection unit can also include above two part, i.e.,
The PH of liquid is detected, also detection temperature.Second detection unit by the 5th conduit 45 with developmental tube 3 is closed connects, the 5th conduit
The 5th magnetic valve 55 is provided with 45, and the position close to developmental tube 3 is provided with the 4th check valve 64, the edge of the 4th check valve 64
Developmental tube 3 goes out the direction conducting of liquid, prevents liquid from flowing backwards, and the 5th magnetic valve 55 is connected with control system, controls solution to second
The time that detection unit flows into.
The side of developmental tube 3 is also communicated with sewer pipe 46, and sewer pipe 46 is used to discharge waste liquid, and the is provided with sewer pipe 46
Six magnetic valves 56, and the position close to developmental tube 3 is provided with the 5th check valve 65, avoid liquid from flowing backwards, the 5th check valve 65
The direction for going out liquid along developmental tube 3 is turned on, and the 6th magnetic valve 56 is connected with control system, liquid efflux time in Control experiment pipe 3.
As shown in figure 4, in the present embodiment, sample injection pump 1 and reagent injector pump 2 are precise injection pump, precision note
Penetrating pump includes injection-tube 91, piston, lead-screw drive mechanism, stepper motor 94 and grating scale 95.One end of injection-tube 91 is provided with
Inlet and liquid outlet, piston is slidably and what is sealed is arranged in injection-tube 91, and the afterbody of piston is connected with piston rod 92, silk
Thick stick transmission mechanism includes the screw mandrel 931 and nut 932 to cooperate, and moving direction of the screw mandrel 931 along piston rod 92 is set, nut
932 fix with piston rod 92.Stepper motor 94 is connected with screw mandrel 931, and drive screw 931 rotates, the mobile terminal of grating scale 95 with
Nut 932 is fixed, and stepper motor 94 and grating scale 95 are connected with control system.Stepper motor 94 can accurately turn according to step number
It is dynamic, coordinate the lead screw transmission mechanism of precision, can accurately control the displacement of piston rod 92 and piston, and then accurate control is noted
The amount of penetrating.In the present embodiment, by the way that the mobile terminal of grating scale 95 and nut 932 are fixed, the high accuracy of grating scale 95 can be utilized
The actual displacement of piston rod 92 is measured, reponse system is formed with the control of stepper motor 94, improves the displacement of piston rod 92
Control accuracy.In addition, the actual displacement of the piston rod 92 detected by grating scale 95 calculates actual injection amount, such as
When fruit and inconsistent theoretical injection volume, final detection result can also be modified, to reduce due to the mistake of actual injection amount
Difference causes the error of testing result.
In the present embodiment, precise injection pump also includes fixed mount 96, connecting rod 97 and travel switch 98.Fixed mount 96 is used
Fixing end, injection-tube 91 and stepper motor 94 in fixed grating chi 95, connecting rod 97 are solid with nut 932 and piston rod 92 respectively
Fixed, in the present embodiment, two travel switches 98 are respectively arranged at two extreme positions of the moving direction of connecting rod 97, stroke
Switch 98 is connected with control system.Travel switch 98 can limit the extreme position of connecting rod 97, avoid piston beyond injection
The length of the inner chamber of pipe 91.
The present embodiment additionally provides a kind of water quality on-line monitoring instrument device, including above-mentioned timesharing injecting systems, sample injection
Pump 1 is connected with pre-detection water quality by water pipe, you can real-time online detects water quality, can be continuous by the manipulation of control system
Water quality detection is carried out, water quality can also be recorded and monitored, can be to alert personnel when water quality is unqualified.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications
Limitation.
Claims (10)
- A kind of 1. timesharing injecting systems, it is characterised in that including：Sample injection pump (1), for sample injection；Reagent injector pump (2), for injecting reagent；Developmental tube (3), for mixing the sample and the reagent, the sample injection pump (1) and the reagent injector pump (2) Respectively by the first conduit (41) with the developmental tube (3) is closed connects, be respectively provided with all first conduits (41) There is the first magnetic valve (51), and the first check valve (61) is being provided with close to the position of the developmental tube (3), described first is single Turned on to valve (61) to the direction of the developmental tube (3) feed liquor；WithControl system, connect respectively and control the sample injection pump (1), the reagent injector pump (2) and it is described first electricity Magnet valve (51).
- 2. timesharing injecting systems as claimed in claim 1, it is characterised in that also used including wiper mechanism, the cleaning structure In cleaning the developmental tube (3), the wiper mechanism includes：Second conduit (42), for supplying cleaning fluid, second conduit (42) with the developmental tube (3) is closed connects, it is described Second solenoid valve (52) is provided with second conduit (42), and it is unidirectional being provided with second close to the position of the developmental tube (3) Valve (62), second check valve (62) turn on to the direction of the developmental tube (3) feed liquor；WithFirst peristaltic pump (71), it is connected with second conduit (42), for driving the cleaning fluid in second conduit (42) Flowing；The second solenoid valve (52) and first peristaltic pump (71) are connected with the control system.
- 3. timesharing injecting systems as claimed in claim 2, it is characterised in that the wiper mechanism also includes：3rd conduit (43), one end can connect with common gases conduit or hot gas conduit, to supply normal air or hot-air, separately One end with the developmental tube (3) is closed connects, be provided with the 3rd magnetic valve (53) on the 3rd conduit (43)；WithSecond peristaltic pump (72), it is connected with the 3rd conduit (43), for driving the gas stream in the 3rd conduit (43) It is dynamic；3rd magnetic valve (53) and second peristaltic pump (72) are connected with the control system.
- 4. timesharing injecting systems as claimed in claim 3, it is characterised in that also including photodetector unit (81), for examining The light transmittance of liquid in the developmental tube (3) is surveyed, the photodetector unit (81) passes through the 4th conduit (44) and the experiment (3) closed connection is managed, the 4th magnetic valve (54) is provided with the 4th conduit (44), and close to the developmental tube (3) Position is provided with the 3rd check valve (63), and the direction that the 3rd check valve (63) goes out liquid along the developmental tube (3) turns on；4th magnetic valve (54) is connected with the control system.
- 5. timesharing injecting systems as claimed in claim 4, it is characterised in that one end and the described 4th of the developmental tube (3) Conduit (44) connects, and the other end connects with the 3rd conduit (43), first conduit (41) and second conduit (42) The side with the developmental tube (3) connects respectively.
- 6. timesharing injecting systems as claimed in claim 1, it is characterised in that also including the second detection unit, for detecting The PH and/or temperature of liquid in developmental tube (3) are stated, second detection unit passes through the 5th conduit (45) and the developmental tube (3) closed connection, the 5th magnetic valve (55) is provided with the 5th conduit (45), and close to the position of the developmental tube (3) Install and be equipped with the 4th check valve (64), the direction that the 4th check valve (64) goes out liquid along the developmental tube (3) turns on；5th magnetic valve (55) is connected with the control system.
- 7. timesharing injecting systems as claimed in claim 1, it is characterised in that the side of the developmental tube (3) is communicated with waste liquid Manage (46), the sewer pipe (46) is used to discharge waste liquid, is provided with the 6th magnetic valve (56) on the sewer pipe (46), and by The position of the nearly developmental tube (3) is provided with the 5th check valve (65), and the 5th check valve (65) goes out along the developmental tube (3) The direction conducting of liquid；6th magnetic valve (56) is connected with the control system.
- 8. the timesharing injecting systems as described in any one of claim 1~7, it is characterised in that the sample injection pump (1) and institute It is precise injection pump to state reagent injector pump (2), and the precise injection pump includes：Injection-tube (91), one end is provided with inlet and liquid outlet；Piston, slidably and what is sealed is arranged in the injection-tube (91), and the afterbody of the piston is connected with piston rod (92)；Lead-screw drive mechanism, includes the screw mandrel (931) and nut (932) of mutual cooperation, and the screw mandrel (931) is along the piston rod (92) moving direction is set, and the nut (932) is fixed with the piston rod (92)；Stepper motor (94), it is connected with the screw mandrel (931)；WithGrating scale (95), the mobile terminal of the grating scale (95) and the nut (932) are fixed；The stepper motor (94) and the grating scale (95) are connected with the control system.
- 9. timesharing injecting systems as claimed in claim 8, it is characterised in that the precise injection pump also includes：Fixed mount (96), for fixing fixing end, the injection-tube (91) and the stepper motor of the grating scale (95) (94)；Connecting rod (97), it is fixed with the nut (932) and the piston rod (92) respectively；WithTwo travel switches (98), two extreme positions of the moving direction of the connecting rod (97) are respectively arranged at, it is described Travel switch (98) is connected with the control system.
- 10. a kind of water quality on-line monitoring instrument device, it is characterised in that inject system including the timesharing described in any one of claim 1~9 System, the sample injection pump (1) are connected with pre-detection water quality by water pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711277626.7A CN107831328A (en) | 2017-12-06 | 2017-12-06 | A kind of timesharing injecting systems and water quality on-line monitoring instrument device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711277626.7A CN107831328A (en) | 2017-12-06 | 2017-12-06 | A kind of timesharing injecting systems and water quality on-line monitoring instrument device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646421A (en) * | 2019-11-08 | 2020-01-03 | 广东新大禹环境科技股份有限公司 | Automatic water quality detection device and detection system |
| CN114250144A (en) * | 2021-12-17 | 2022-03-29 | 深圳铭毅智造科技有限公司 | Liquid path system for gene sequencing |
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