CN86202402U - Chemical titration analyzer - Google Patents
Chemical titration analyzer Download PDFInfo
- Publication number
- CN86202402U CN86202402U CN 86202402 CN86202402U CN86202402U CN 86202402 U CN86202402 U CN 86202402U CN 86202402 CN86202402 CN 86202402 CN 86202402 U CN86202402 U CN 86202402U CN 86202402 U CN86202402 U CN 86202402U
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- buret
- standard solution
- titration
- key
- bottle
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Abstract
The utility model relates to a general chemical analysis instrument, comprising a support bracket, burettes, standard solution bottles, a titration control system and a pneumatic stirring device. The utility model has alkali and acid form structure. When liquid is titrated, adding standard solution and mixing standard solution and test sample are carried out at the same time. When the liquid completely reacts, the end point of titration reflects correctly and timely. The adjustment of adding quantities and velocity prevents excessive titration and improves the accuracy of analysis. The analysis instrument can take conductance titration and potential titration analysis with a conductance cell and a potential cell.
Description
The utility model is a kind of general chemical analysis instrument.
Titrimetry is a kind of widely used chemical analysis method.The general instrument that uses of titrimetry is the titrimetry device that is made of support, buret and buret pipe clamp.Utilize such device to carry out chemical titration analysis, want a hand-held bottle during operation and constantly shake bottle; The cock of one hand control buret or stifled pearl, the rate of outflow and the discharge of adjusting and grasp standard solution.Observe the change color of sample simultaneously.In general conventional analysis chemical examination, to observe the liquid level position amount of buret internal standard solution toward contact.Therefore, energy disperses during operation, and action is difficult for coordinating, and operation is difficult for grasping.And the easy generation of titration is excessive, causes bigger analytical error, causes analysis result inaccurate.
The purpose of this utility model provides a kind of operation easy to use, easy, and the chemical titration analysis instrument of titration control system and solution stirring device is arranged.
The chemical titration analysis instrument by support (20), chassis (12), buret (7), buret cantilever support (9), be fixed on titration cell adjustable support pallet (18) on the chassis, be positioned at the standard solution bottle (4) of buret top and be positioned at the titration control system of the integral cavity that support, chassis, buret cantilever support hollow-core construction be communicated with and the pneumatic stirring apparatus formation that sample is mixed with standard solution.
The titration control system by be positioned at stream key (38) on the chassis, drip key (25), the glue that has air inlet, outgassing nonreturn valve of stream key below is assisted ball (30), the glue that drips the key below is assisted ball (37) and be positioned at support, chassis, cantilever support integral cavity connecting pipe (14), be connected with connecting pipe prop up connecting pipe (29) formation.Connecting pipe one end and glue assist ball (30) to be connected the other end to stretch along the support cavity and take over head to support port and buret side mouth and be tightly connected, and a connecting pipe other end assists ball (37) to be connected with glue.
Pneumatic stirring apparatus is assisted ball (26), wireway (16), is fixed on cantilever support upper connecting tube (11), is stirred extension tubing (13) formation by glue.Pneumatic stirring apparatus is by dripping the moving control of binding.Dripping key has pneumatic stirring and stirs two key journeys of a titration.
The buret lower port has pipe cap (42), in order to prevent spilling of standard solution.
In order to prevent because of being not intended to touch the meaningless outflow that the stream key causes standard solution, the stream key has dead key journey structure and locking mechanism, dead key journey structure is to be symmetrical arranged retainer spring (33) on stream key (38), makes stream key pressing plate (34) assist ball (30) separated by a distance with glue under state of nature.The locking mechanism of stream key is made of the Baltimore groove on control knob (21), the lock pin (23) of fixedlying connected with control knob, positioning reed (36) and the stream key sidewall.When the stream key quits work, promote control knob and slide towards stream key direction, insert in the stream key sidewall Baltimore groove lock pin end will flow keylock.Lock pin is located by positioning reed, prevents that the lock pin end is by deviating from the groove.
Glue assists the bearing plate (28) of ball (37) that set screw (27) is arranged, in order to regulate the support height of backing plate.Drip key and in titration key journey, drip key pressing plate (35) glue is assisted the extruding degree of ball (37), control and the rate of titration of adjustment criteria solution and the size of drop by changing the backing plate support height, changing.
In order to adapt to the requirement of different titration, analyser has alkali formula and two kinds of versions of acid.
The standard solution bottle and the buret upper port of the titrimetry instrument of alkali formula structure are tightly connected.Have the adapter head (2) that has integral body to connect on (5) of hermetically-sealed construction, be connected with connecting pipe by soft connection (3), support tube (6), gas piping (41).The control device that the contiguous connecting pipe of gas piping place has control handle (45), depression bar (43), tightening spring (44), saddle (40) to constitute is communicated with buret or cut off with the standard solution bottle.In the buret side mouth pipe there be and the whole lower extending tube (15) that is connected of tube wall a side, the initial scale mark of its port and buret is in the same plane.Stretch in the buret with the whole woven hose (8) that is connected of standard solution bottle, standard solution flows in the buret by woven hose.
The standard solution bottle of the analyser of acid structure is tightly connected by binary channels cock (47) and buret upper port.Gas piping (48) is arranged in the standard solution bottle, and its end and the bottle end be whole to be connected and the gas piping (49) by cock one passage and buret joins.The other end extends upwardly and is extended down to a bottle roof below.The gas piping lower port and the initial scale mark of buret of buret are in the same plane.The woven hose of standard solution bottle joins by the woven hose (50) of another passage of cock and buret.
Utilize the chemical titration analysis instrument to carry out chemical titration analysis, processing ease moves single.Standard solution both can flow into fast also and can splash in the sample.The adding of standard solution and carry out with mixing synchronously of sample reacts completely, and the titration end-point reflection is correct, in time.Analyser can and change the adding speed of standard solution and the size of drop according to the needs adjustment of titration, thereby can prevent the generation of overtitration.Reduce analytical error, improved precision of analysis.Analyser also can cooperate with conductance cell, high frequency conductance pond, potentiometric cell and carries out conductance titration, high-frequency conductometric titration and Potential Titration Analysis.
Accompanying drawing is example structure figure of the present utility model.Further specify the utility model in conjunction with the accompanying drawings.
Fig. 1 is the structural drawing of alkali formula chemical titration analysis instrument.
Fig. 2 is the vertical view of alkali formula chemical titration analysis instrument.
Fig. 3 is the B-B cut-open view.
Fig. 4 is the partial enlarged drawing of stream keylock mechanism.
Fig. 5 is the D-D cut-open view.
Fig. 6 is for dripping the moving key of the binding composition that hardens.
Fig. 7 is the structural drawing of acid chemical titration analysis instrument.
Fig. 8 is the vertical view of acid chemical titration analysis instrument.
Fig. 9 is the C-C cut-open view.
As shown in Figure 1.The standard solution bottle (4) of alkali formula chemistry titration instrument is tightly connected by connector (1) and buret (7).When carrying out titrimetry, earlier the seal bottle cap (5) of standard solution bottle is opened.The knob of turn control device (45) makes depression bar (43) cooperate with saddle (40) gas piping (41) is compressed, and buret and standard solution bottle are cut off.The structure of control device knob and depression bar as shown in Figure 5 is a threaded engagement, and level bending in depression bar lower end has tightening spring (44) spring by ring dam (46) backstop on chassis wall and the depression bar on the depression bar.Turn knob depression bar moves down under spring promotes, and the horizontal bending segment of depression bar cooperates with saddle and gas piping compressed the gas pipe line partition.Oppositely the turn knob promotes depression bar, and gas piping reinstatement pipeline is communicated with.After buret and standard solution bottle are cut off, standard solution is poured in the bottle.Because buret is in closed state, bottle internal standard solution can not flow in the buret.Cover seal bottle cap, slowly the turn knob makes the standard solution bottle be communicated with gradually with buret, and standard solution flows in the buret by woven hose (8).The adapter head (2) of the air of being discharged by standard solution in the buret on lower extending tube (15), connecting pipe (14), gas piping (41), support tube (6), hose adapter (3) and bottle cap enters standard solution bottle upper space.When buret internal standard liquid level of solution during near initial scale mark (i.e. 0 scale mark), the turn knob compresses gas piping, liquid level was with the lower extending tube port closed when liquid level rose to initial scale mark position amount, and standard solution no longer flows in the buret, and liquid level no longer rises in the buret.Adjusting yoke column supporting (19) is adjusted to the support height that needs with pallet (18), sample is poured in the titration cell (17) then.Stir extension tubing (13) and insert in the titration cell sample, utilize hose adapter (10) to be tightly connected, take buret pipe cap (42) and can carry out titration operation with taking over (11).
Press stream key (38) during titration, stream key pressing plate (34) extruding has the glue that the outgassing nonreturn valve of energizing spring (39) (31) is arranged on breather check valve (32) and the valve rod and assists ball (30), and air is pressed in the connecting pipe (14) in assisting.Connecting pipe boosts, and air in tube flows into the buret upper space.Owing to assist the ball volume big, extrude tolerance the buret upper space amplitude of boosting is flowed in the sample by the extrusion of buret solution than big standard solution more.
Drip key key plate structure as shown in Figure 6.Pneumatic stirring pressing plate (22) is connected with pressing plate (35) integral body with titration and is in the same plane.When a key is worked in pneumatic stirring key journey, have only pressing plate (22) extruding glue to assist ball (26) and pressing plate (35) assists ball (37) not contact with glue, glue assists ball (26) to be extruded, assist air to be pressed in the wireway (16) and then to pass through and take over (11), shaft extension tubing (13) is discharged the sample bubbling.Discharge to drip that key glue is assisted ball because self tension force effect is restored, produce negative pressure part solution in the titration cell is sucked in the stirring extension tubing.Press once more and drip solution in the key extension tubing and be discharged from and impact and stir solution in the titration cell, the standard solution that makes adding and sample are in time, promptly mix.Press a stream key and a key during titration simultaneously and a key is worked in pneumatic stirring key journey, the adding of standard solution can be carried out simultaneously with mixing of solution.
If during titration standard solution is added in the sample to drip shape, will flow keylock earlier.As shown in Figure 4, control knob is promoted towards stream key direction, insert in the Baltimore groove (24) that flows key (38) sidewall lock pin (23) end will flow keylock, lock pin is located by the positioning reed (36) that an end is fixed on the chassis, prevent that the lock pin end is by deviating from the groove, press a key and work in pneumatic stirring one titration key journey, pressing plate (22), pressing plate (35) push glue simultaneously and assist ball (26) and glue to assist ball (37).Therefore, the dropping of standard solution mixes simultaneously with solution and carries out.Because glue assists ball (37) volume less, the tolerance of discharging during extruding is also less, so the buret upper space standard solution that boosts in the less buret of amplitude is discharged less and added in the sample to drip shape.In order to prevent overtitration, utilize screw (27) to regulate the support height of backing plate (28), assist the extruding degree of ball by changing under same key journey glue, adjust the size and the rate of addition of drop.
After titration finishes, pallet is forced down, make the stirring extension tubing leave the titration cell liquid level.Press and drip key in pneumatic stirring key journey, solution all enters in the titration cell in the extension tubing.
Acid chemical titration analysis instrument as shown in Figure 7.Standard solution bottle (4) has the bottle cap (5) of hermetically-sealed construction, is tightly connected by binary channels cock (47) and buret.There are gas piping (48) one ends to be connected and to extend upwardly and be extended down to below bottle roof in the bottle by cock one passage and the interior gas piping (49) of the buret other end that joins with whole at the bottom of the liquid bottle.The port that gas piping one end in the buret is fixed on the other end on the connector and the initial scale mark of buret (0 scale mark) at grade, woven hose (8) joins by the interior woven hose (50) of another passage of cock and buret.
Before titration begins, open seal bottle cap, the turn cock makes on its position that is in closed condition, standard solution is poured in the standard solution bottle.The standard solution bottle is in closed state after covering bottle cap completely, opens the cock standard solution and flows in the buret by woven hose.Air in tube enters standard solution bottle upper space by gas piping.When liquid level rises to initial scale mark in the buret, cut-out tap, liquid level no longer flows into buret with gas piping port closed standard solution simultaneously, and following operation and alkali formula chemical titration analysis instrument are identical.
Claims (5)
1, the chemical titration analysis instrument that constitutes by support (20), chassis (12), buret (7), buret cantilever support (9), it is characterized in that the titration control system is arranged, pneumatic stirring apparatus, adjustable support pallet (18) and be positioned at the standard solution bottle (4) of buret top, said support, chassis, cantilever support are hollow-core construction and are linked to be integral cavity that said buret has pipe cap (42).
2, by the described chemical titration analysis instrument of claim (1), it is characterized in that said titration control system assisted ball (30), glue to assist ball (37), stream key (38), dripped key (25) and constitute by connecting pipe (14), connecting pipe (29), the glue that has an inlet, outlet retaining valve, said pneumatic stirring apparatus is assisted ball (26), wireway (16), is fixed on adapter (11), stirring extension tubing (13) formation on the cantilever support by glue, pneumatic stirring apparatus is by dripping the moving control of binding, and dripping key has pneumatic stirring and two key journeys of pneumatic stirring one titration.
3, by the described chemical titration analysis instrument of claim (2), it is characterized in that flowing the locking mechanism that key has dead key journey structure and is made of control knob (21), lock pin (23), positioning reed (36), said glue assists ball (37) that the adjustable support plate is arranged, and it is made of backing plate (28), set screw (27).
4, by claim (1) or (2) or (3) described chemical titration analysis instrument, it is characterized in that standard solution bottle and buret upper port are tightly connected, has the adapter head (2) that has integral body to connect on the bottle cap (5) of hermetically-sealed construction, by hose adapter (3), support tube (6), gas piping (41) is tightly connected with connecting pipe, gas piping is contiguous to be had by control handle (45) with the connecting pipe interface, depression bar (43), tightening spring (44), the control device that saddle (40) constitutes, utilize control device that the standard solution bottle is communicated with or cuts off with buret, said buret side mouth has and the whole lower extending tube (15) that is connected of tube wall, lower extending tube is positioned at pipe and along stretching under the tube wall, the initial scale mark of its port and buret is in the same plane.
5, by claim (1) or (2) or (3) described chemical titration analysis instrument, it is characterized in that binary channels cock (47) is arranged between standard solution bottle and buret upper port, gas piping (48) is arranged in the standard solution bottle, gas piping one end is connected with bottle end integral body and joins by gas piping (49) in cock one passage and the buret, the other end extends upwardly and is extended down to a bottle roof below, in the buret gas piping lower port and the initial scale mark of buret at grade, standard solution bottle woven hose (8) joins by another passage of cock and buret catheter (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86202402 CN86202402U (en) | 1986-04-30 | 1986-04-30 | Chemical titration analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86202402 CN86202402U (en) | 1986-04-30 | 1986-04-30 | Chemical titration analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86202402U true CN86202402U (en) | 1987-05-20 |
Family
ID=4805941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86202402 Ceased CN86202402U (en) | 1986-04-30 | 1986-04-30 | Chemical titration analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86202402U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021615A (en) * | 2010-06-01 | 2011-04-20 | 无锡市金义博仪器科技有限公司 | Galvanizing ammonium salt flux bath solution analyzer |
| CN106770917A (en) * | 2016-12-26 | 2017-05-31 | 中国水产科学研究院黄海水产研究所 | A kind of Pneumatic mixing device and application method |
| CN109490161A (en) * | 2018-12-19 | 2019-03-19 | 桂林理工大学 | New device based on colloid concentration measurement |
-
1986
- 1986-04-30 CN CN 86202402 patent/CN86202402U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021615A (en) * | 2010-06-01 | 2011-04-20 | 无锡市金义博仪器科技有限公司 | Galvanizing ammonium salt flux bath solution analyzer |
| CN102021615B (en) * | 2010-06-01 | 2012-04-18 | 无锡市金义博仪器科技有限公司 | Galvanizing ammonium salt flux bath solution analyzer |
| CN106770917A (en) * | 2016-12-26 | 2017-05-31 | 中国水产科学研究院黄海水产研究所 | A kind of Pneumatic mixing device and application method |
| CN106770917B (en) * | 2016-12-26 | 2019-03-15 | 中国水产科学研究院黄海水产研究所 | A kind of Pneumatic mixing device and application method |
| CN109490161A (en) * | 2018-12-19 | 2019-03-19 | 桂林理工大学 | New device based on colloid concentration measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right |