CN202330383U

CN202330383U - Titration system

Info

Publication number: CN202330383U
Application number: CN2011204687382U
Authority: CN
Inventors: 廉立伟
Original assignee: NINGBO DIARY GROUP Co Ltd
Current assignee: NINGBO DIARY GROUP Co Ltd
Priority date: 2011-11-23
Filing date: 2011-11-23
Publication date: 2012-07-11
Anticipated expiration: 2021-11-23

Abstract

The utility model discloses a titration system, and belongs to the technical field of titration. The titration system comprises a burette and a bracket. The burette is clamped and fixed on the bracket. Scales are made on the sidewall of the burette, and scale values of the scales are sequentially increased from top to bottom. The titration system also comprises a reagent bottle and a U-shaped tube which also can be called a siphon. A plug is arranged at a bottleneck of the reagent bottle. Two channels are formed on the reagent bottle. The inside of the reagent bottle is communicated with the outside through the channels. One channel is connected with an inflation device. One end of the U-shaped tube is extended into liquid in the reagent bottle, and the other end of the U-shaped tube is extended into the burette. The maximum possible height of a liquid level in the reagent bottle is lower than the height of the end of the U-shaped tube, which is extended into the burette. In the titration of each time, the volume of a solution flowing out of the burette can be known by only once reading, so that a measurement process is greatly simplified.

Description

A kind of titration system

Technical field

The utility model belongs to the titration technique field, relates to a kind of titration system that is added to assigned address can liquid feeding the time automatically specifically.

Background technology

Buret is to be used for accurately emitting the volumetric apparatus of uncertain quantity of fluid, and generally with elongated and uniform glass tube is processed, it is Yi Jianzui that scale, lower end are arranged on the pipe, and the centre is provided with the valve that is used for controlling rate of titration.In order to measure the amount of the liquid that flows out buret, generally needing reading twice during titration, once is the amount of the interior solution of buret before the titration, and another time is the amount of the interior solution of buret after the titration.

For example in the dairy products industry; Buret is mainly used in the acidity of titrimetry sour milk; Its method is in buret, to add certain density NaOH solution (hereinafter to be referred as solution); Get 10ml sour milk sample to be measured and add 20ml water and 0.5% phenolphthalein reagent 0.5ml, the valve of outwarding winding then splashes into solution in the sour milk sample, become blush and nondiscolouring in 30 seconds up to the sour milk sample.See mainly in the process that the amount of solution consumption obtains the acidity of sour milk.Before the titration, the test man need read the scale a of solution in the buret, after the titration; The test man need read the scale b of the interior solution of buret again, (b-a) is the amount of solution consumption, measures like this; Need reading twice, very trouble is not suitable for the occasion that needs continuous coverage at every turn.

Summary of the invention

The utility model provides a kind of titration system to deficiency of the prior art, and each only the measurement need be read scale one time, improved the efficient of titration greatly.

In order to solve the problems of the technologies described above, the utility model is able to solve through following technical proposals: a kind of titration system comprises buret and support; Said buret clamp fastens on said support; The sidewall of said buret is provided with scale, and the increase successively from top to bottom of the scale value of said scale, also comprises reagent bottle and U-shaped pipe (also can be called U trap); Said reagent bottle bottle mouth position is provided with stopper; Said reagent bottle is provided with two and is communicated with inner with the extraneous passages of said reagent bottle, and one of them said passage is connected with aerating device, and said U-shaped Guan Yiduan stretches in the liquid in the said reagent bottle; The other end of said U-shaped pipe stretches in the said buret, and the maximum possible height of liquid level is lower than the height that said U-shaped pipe stretches into said buret one end in the said reagent bottle.During use; Seal that passage that does not connect aerating device earlier, use aerating device in reagent bottle, to pressurize then, the solution in the reagent bottle gets in the buret through the U-shaped pipe; Liquid in buret did not have said U-shaped pipe to stretch into the end in the buret; At this moment open that passage of being sealed, because the siphonic effect of U-shaped pipe, will be arranged in the liquid that the U-shaped pipe stretches into said buret one end top and all suck reagent bottle; Thereby guarantee that the height of liquid level can guarantee at same position in the buret no matter add many a spot of liquid at every turn---stretch into the position that said buret one end end face maintains an equal level mutually with the U-shaped pipe.And this position we can be through reading in advance; The scale like the here is a ', thus during our titration, only need read titration intact after the reading b of solution in the buret; Just can calculate the amount (b-a ') of the solution that flows out buret, practice thrift the time greatly.

In the technique scheme, preferred, also comprise two snorkels, said stopper is provided with three jacks, and said U-shaped pipe and two said snorkels match with said jack respectively, and the inwall of said snorkel forms said passage.

In the technique scheme, preferred, said U-shaped pipe stretches into said buret one end and flushes with 0 scale place.So each titration finishes the reading b of solution in the buret of reading afterwards, is the amount of the solution that flows out buret, need not to calculate.

In the technique scheme, preferred, said aerating device is a leather bag.Leather bag simple in structure, cost is lower, is the preferred aerating device of present embodiment.

The beneficial effect of the utility model is: utilize the siphonic effect of U-shaped pipe, make the height of intraluminal fluid face can guarantee at same position---stretch into the position that said buret one end end face maintains an equal level mutually with the U-shaped pipe.And this position can be reserved in advance; As long as each like this reading of reading solution in the intact buret afterwards of titration; Just only need reading once just can calculate the amount of the solution that flows out buret, the original each measurement of comparing needs reading twice, has simplified measuring process greatly.

Description of drawings

Fig. 1 is the synoptic diagram of the embodiment of the utility model.

Fig. 2 is the local enlarged diagram of Fig. 1.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Referring to Fig. 1, a kind of titration system comprises buret 1, support 2, reagent bottle 3 and U-shaped pipe 4.Buret 1 usefulness is elongated and uniform glass tube is processed, and scale 11 is arranged on the sidewall, the scale value the top 0 of scale 11, and increase successively from top to bottom.The lower end of buret 1 is Yi Jianzui, and the centre has valve 12 to be used for controlling the speed of titration.Support 2 comprises pedestal 21 and is vertically fixed on the column 22 on the pedestal 21, and the upper end of column 22 is fixed with a cross bar 23, and the two ends of cross bar 23 are provided with two clips 231,232, and the top of buret 1 is fixedly clamped by clip 231.Reagent bottle 3 bottle mouth positions are provided with stopper 31, and stopper 31 is provided with three jacks, and U-shaped pipe 4 one ends insert in the jack; And extend into below the liquid level in 3 bottles of the reagent bottles; Referring to Fig. 2, the other end of U-shaped pipe stretches in the said buret 1, aligns with 0 groove on buret 1 sidewall.The maximum height of liquid level is lower than the height that U-shaped pipe 4 stretches into said buret 1 one ends in the reagent bottle 3.Fixing a

snorkel

32,33 in two other jack respectively; Snorkel 32,33 is elongated glass tube; Snorkel 32,33 1 ends stretch in the reagent bottle 3, and the other end is positioned at outside the reagent bottle 3, and the other end of

snorkel

32,33 is provided with

flexible rubber hose

34,35; Wherein be connected with the leather bag 5 as aerating device on the end of flexible rubber hose 35, the inwall of

snorkel

32,33 forms and is communicated with reagent bottle 3 inner and extraneous passages.

Claims

1. titration system; Comprise buret (1) and support (2); Said buret (1) is fixedly clamped on said support (2); The sidewall of said buret (1) is provided with scale (11), and the increase successively from top to bottom of the scale value of said scale (11), it is characterized in that: also comprise reagent bottle (3) and U-shaped pipe (4); Said reagent bottle (3) bottle mouth position is provided with stopper (31); Said reagent bottle (3) is provided with two and is communicated with inner with the extraneous passages of said reagent bottles (3), and one of them said passage is connected with aerating device, and said U-shaped pipe (4) one ends stretch in the liquid in the said reagent bottle (3); The other end of said U-shaped pipe (4) stretches in the said buret (1), and the maximum height of the interior liquid level of said reagent bottle (3) is lower than the height that said U-shaped pipe (4) stretches into said buret (1) one end.

2. titration system according to claim 1; It is characterized in that: also comprise two snorkels (32,33); Said stopper (31) is provided with three jacks; Said U-shaped pipe (4) and two said snorkels (32,33) match with said jack respectively, and the inwall of said snorkel (32,33) forms said passage.

3. titration system according to claim 1 and 2 is characterized in that: said U-shaped pipe (4) stretches into said buret (1) one end and flushes with 0 scale place.

4. titration system according to claim 1 and 2 is characterized in that: said aerating device is leather bag (5).

5. titration system according to claim 3 is characterized in that: said aerating device is leather bag (5).