CN203069564U

CN203069564U - Full-automatic titrator

Info

Publication number: CN203069564U
Application number: CN 201320023451
Authority: CN
Inventors: 许清传
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-16
Filing date: 2013-01-16
Publication date: 2013-07-17
Anticipated expiration: 2023-01-16

Abstract

The utility model discloses a full-automatic titrator. The titrator comprises a reaction tank; a sampling module comprising an injection pump and a peristaltic pump, wherein the injection pump and the peristaltic pump respectively inject a sample to be measured and cleanout fluid in the reaction tank; a titration module comprising a microscale titration pump, wherein the microscale titration pump injects a titration reagent in the reaction tank through a burette; a displaying and measuring module, which touches liquid to be measured in the reaction tank and measures the parameters of the liquid to be measured; and a control module respectively connected with the sampling module, the titration module and the displaying and measuring module. By adopting the full-automatic titrator, the detection precision is greatly improved. The titration pump is adopted on the titration module, so that the resolution of titration volume is as high as 0.05ml. The display and output module is capable of freely setting a plurality of parameters and recording historical data, a titration curve is displayed by a curve, the modules are mutually independent, the maintenance is easy, the service life is long, and the application cost is greatly lowered.

Description

Full-automatic titrator

Technical field

The utility model relates to a kind of chemical test equipment, particularly a kind of full-automatic titrator for water quality detection.

Background technology

Along with progress and the science and technology development in epoch, human more and more higher to the requirement of water environment.Hardness is as a kind of important hydrochemistry index, and to health, equipment loss has significant effects.In order to measure the hardness of water quality, the Hardness Titration instrument arises at the historic moment.

In the prior art, the technician often needs repeatedly equipment such as cleaning reaction groove when carrying out the water hardness detection, and formality is loaded down with trivial details, has carelessness just to influence accuracy of detection slightly.In titration process, because testing sample is various, when carrying out a large amount of titration operation repeatedly, be difficult to remain the precision of titration simultaneously.

Those skilled in the art is devoted to develop a kind of full-automatic titrator, detection efficiency and the precision of the hardness of increasing water quality and other character.

The utility model content

The technical problems to be solved in the utility model is in order to overcome in the prior art, and water quality titration device performance accuracy is low, keeps in repair loaded down with trivial detailsly, and the deficiency that detection efficiency is low provides a kind of new automatic titrator.

The utility model solves above-mentioned technical matters by following technical proposals:

A kind of full-automatic titrator, its characteristics are that described titrator comprises:

One reactive tank;

One sampling module comprises a syringe pump and a peristaltic pump, and described syringe pump and peristaltic pump inject described reactive tank with testing sample and cleaning fluid respectively;

One titration module comprises a microtitration pump, and described microtitration pump injects described reactive tank by a buret with titration reagent;

One shows measurement module, contacts and measure the parameter of described liquid to be measured with the liquid to be measured in the described reactive tank;

One control module is connected with described sampling module, titration module and demonstration measurement module respectively.

Preferably, described sampling module also comprises a sampling pump, and described sampling pump is connected with intermediate receptacle with a testing sample container, and described syringe pump is arranged in the described intermediate receptacle, and described syringe pump is driven by a straight line stepper motor.

Preferably, between described sampling pump and the described intermediate receptacle sample valve is set.

Preferably, described peristaltic pump is connected with a soda liquor container by a cleaning valve.

Preferably, described microtitration pump is connected with a titration reagent container.

Preferably, the top of described reactive tank arranges overflow vent, and the bottom of described reactive tank arranges floss hole, and the bottom of described reactive tank arranges a stirring machine, and described floss hole is connected with a delivery pipe, and described delivery pipe arranges a solenoid valve.

Preferably, described demonstration measurement module comprises that a potential electrode, a signal converter and show output module, and described demonstration output module is by serial ports and described control module communication.

Preferably, described control module is connected with sampling pump, syringe pump and the peristaltic pump of sampling module respectively, is connected with the titration pump of titration module, is connected with stirring machine with the solenoid valve at floss hole place in the reactive tank, is connected with the converter that shows measurement module.

Preferably, be connected by the communication of RS485 mode between described syringe pump and the described control module.

In the utility model, but above-mentioned optimum condition combination in any on the basis that meets this area general knowledge namely gets each preferred embodiment of the utility model.

Positive progressive effect of the present utility model is:

1) this full-automatic titrator of the utility model carries out the sample sampling, and precision is less than 0.05%, and repeatability precision improves accuracy of detection greatly less than 0.05%.

2) titration module of the present utility model adopts the microtitration pump, and the resolution of titration volume can reach 0.05ml.

3) demonstration output module of the present utility model can freely arrange multiple parameters, the log history data, and curve shows titration curve, measurement result can freely be transmitted by serial ports.Also can pass through the serial ports remote control equipment.

4) the utility model is simple in structure, and is separate between each module, safeguards that long service life greatly reduces use cost easily.

Description of drawings

Fig. 1 is the structural representation according to the full-automatic titrator under the specific embodiment of the present utility model.

Fig. 2 is the operation steps process flow diagram of a full-automatic titrator under the specific embodiment.

Embodiment

Embodiment of the present utility model describes with reference to the accompanying drawings.In Figure of description, the element with similar structures or function will be used the components identical symbolic representation.Accompanying drawing is each embodiment of the present utility model for convenience of explanation just, is not to carry out the explanation of exhaustive to the utility model, neither limit scope of the present utility model.

Fig. 1 shows the schematic structure of a full-automatic titrator under the specific embodiment.In this embodiment, full-automatic titrator comprises: reactive tank 7, sampling module, titration module, demonstration measurement module and control module 18.

Sampling module comprises testing sample container 3, sampling pump 4 and is arranged on the interior syringe pump 6 of intermediate receptacle.Sampling pump 4 injects intermediate receptacle with testing sample from testing sample container 3, syringe pump 6 injects testing sample reactive tank 7 again.Sample valve 5 is set between sampling pump 4 and the intermediate receptacle.Sampling pump 4 is connected with control module 18 respectively with sample valve 5, the injection that the technician can the Long-distance Control testing sample.In a preferred embodiment, syringe pump 6 is driven by a straight line stepper motor, and control module drives the injection of testing sample by the control step motor.Syringe pump 6 can with control module 18 between be connected by the communication of RS485 mode, also can connect by other mode communication.

Sampling module also comprises soda liquor container 12 and peristaltic pump 13.Peristaltic pump 13 injects reactive tank 7 with cleaning fluid from soda liquor container 12.Between peristaltic pump 13 and the reactive tank 7 cleaning valve 14 is set.Peristaltic pump 13 is connected with control module 18 respectively with cleaning valve 14, thus the injection of technician's Long-distance Control cleaning fluid.

The titration module comprises titration reagent container 1 and microtitration pump 2 compositions, and microtitration pump 2 injects reactive tank 7 by a buret with titration reagent, and titration reagent mixes formation liquid to be measured with testing sample.In one embodiment, titration reagent is the Hardness Titration agent, and the resolution of microtitration pump 2 titration volumes can reach 0.05ml.

The top, side of reactive tank 7 arranges overflow vent 9, the bottom of reactive tank 7 arranges floss hole 10, and the bottom of reactive tank arranges one for the stirring machine 8 that stirs liquid to be measured, and floss hole 10 is connected with the relief liquor container by bleed valve 11, in one embodiment, bleed valve 11 is solenoid valve.Bleed valve 11 is connected with control module 18.

Show measurement module, show that measurement module comprises potential electrode 15, signal converter 16 and shows output module 17, shows that output module 17 is by serial ports and control module 18 communications.Liquid to be measured in potential electrode 15 and the reactive tank 7 contact and measures the detection numerical value of described liquid to be measured, and signal converter 16 will detect numerical value and transfer to control module, and demonstration output module 17 is presented at these numerical value on the interface.

Control module 18 is connected with solenoid valve, peristaltic pump, titration pump and the related valve at sampling pump, syringe pump, stirring machine, floss hole place respectively.Like this, the technician only need be sitting in and show by the output module, receives the information that each element transmits, and by control module full-automatic titrator is operated.Those skilled in the art will appreciate that control module can be varied to the control mode of each element, these all are comparatively proven technique of industry, do not give unnecessary details herein.

Fig. 2 shows a burette test operation steps flow process of a full-automatic titrator under the specific embodiment.In this embodiment, full-automatic titrator carries out following operation successively:

Step 110, instrument enters waiting step.

Step 120, instrument enter first cleaning step, and peristaltic pump injects reactive tank with cleaning fluid, clean.After cleaning end, cleaning fluid is discharged by floss hole.

Step 130, instrument enter the rinse step, and syringe pump injects reactive tank with testing sample and carries out rinse.

Step 140, instrument enter the sample introduction step, and syringe pump injects reactive tank with quantitative testing sample.

Step 150, instrument enters titration step, and the titration pump accurately splashes into reactive tank with the vs of scheduled volume, and stirring machine begins to stir, and promotes vs and testing sample fully to react.

Step 160, instrument enters measuring process, and the electrode that shows measurement module and liquid to be measured contact and measure the detection numerical value of described liquid to be measured, and this numerical value is transferred to demonstration output module 17 by control module.

Step 170, instrument enters drain steps, and bleed valve 11 is opened, and the reactant liquor in the reactive tank is disposed to the relief liquor container.

Step 180, instrument enter second cleaning step, and the operation of repeating step 120 herein can begin the detection operation of next water sample after reactive tank cleans.

Those skilled in the art can be applied in the checkout equipment that other need detect test to liquid in being appreciated that equally the technical program can not only be used in water hardness detection operation equally.

Though more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection domain of the present utility model is limited by appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite that does not deviate from principle of the present utility model and essence, but these changes and modification all fall into protection domain of the present utility model.

Claims

1. a full-automatic titrator is characterized in that, described titrator comprises:

One reactive tank;

2. full-automatic titrator as claimed in claim 1, it is characterized in that: described sampling module also comprises a sampling pump, described sampling pump is connected with intermediate receptacle with a testing sample container, and described syringe pump is arranged in the described intermediate receptacle, and described syringe pump is driven by a straight line stepper motor.

3. full-automatic titrator as claimed in claim 2 is characterized in that: between described sampling pump and the described intermediate receptacle sample valve is set.

4. full-automatic titrator as claimed in claim 3 is characterized in that: described peristaltic pump is connected with a soda liquor container by a cleaning valve.

5. full-automatic titrator as claimed in claim 1, it is characterized in that: described microtitration pump is connected with a titration reagent container.

6. full-automatic titrator as claimed in claim 1, it is characterized in that: the top of described reactive tank arranges overflow vent, and the bottom of described reactive tank arranges floss hole, and the bottom of described reactive tank arranges a stirring machine, described floss hole is connected with a delivery pipe, and described delivery pipe arranges a solenoid valve.

7. as each described full-automatic titrator of claim 1 to 6, it is characterized in that: described demonstration measurement module comprises that a potential electrode, a signal converter and show output module, and described demonstration output module is by serial ports and described control module communication.

8. full-automatic titrator as claimed in claim 7, it is characterized in that: described control module is connected with sampling pump, syringe pump and the peristaltic pump of sampling module respectively, be connected with the titration pump of titration module, be connected with stirring machine with the solenoid valve at floss hole place in the reactive tank, be connected with the converter that shows measurement module.

9. full-automatic titrator as claimed in claim 7 is characterized in that: be connected by the communication of RS485 mode between described syringe pump and the described control module.