CN1306208A - Automatic in-line monitor for acidity of yellow water in storage pool of spirit brewery - Google Patents
Automatic in-line monitor for acidity of yellow water in storage pool of spirit brewery Download PDFInfo
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- CN1306208A CN1306208A CN 01107182 CN01107182A CN1306208A CN 1306208 A CN1306208 A CN 1306208A CN 01107182 CN01107182 CN 01107182 CN 01107182 A CN01107182 A CN 01107182A CN 1306208 A CN1306208 A CN 1306208A
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Abstract
An in-line automatic monitor for the acidity of yellow liquid in fermenting pool of spirit brewery is disclosed. The liquid mixture of sampled yellow liquid and electrlyte is contained in automatic titration cell. The electrolytic electrode in said liquid mixture is connected with autoamtic coulometer. The indication electrode is connected to the terminal point controller connected to said coulometer whose output is connected with computer. It can perform both in-line and off-line automatic monitor.
Description
The present invention is relevant with the monitoring device of kiln pond yellow water acidity.
Among the present invention the acidity of yellow water be meant can with the total amount of the material of highly basic generation neutralization reaction.The exhausted most multiple organic monoacid of acidic materials in the yellow water for generating in the grain sweat, their dissociation constant is very little, even the concentration change of these organic monoacids is very big, its pH value of water solution changes all very little, in fact can not solve the mensuration of acidity with the method for pH pH-value determination pH.In order to address this problem, each distillery all adopts standard solution of sodium hydroxide at present, and the manual titratable acidity of making indicator with phenolphthalein measures the acidity of storing wine unstrained spirits in the pond.The method of manual titration can only be measured the yellow water acidity of opening before the kiln behind the cellar for storing things, can not real-time follow-up envelope kiln after the variation of yellow water acidity.Domestic and international existing automatical potentiometric titrimeter just changes manual operations into microcomputer automatic control, but still can not solve the automatic on-line monitoring of pond, cellar for storing things yellow water acidity.
The purpose of this invention is to provide a kind of can real-time follow-up behind the envelope kiln yellow water acidity change, it is accurate to measure acidity, diverse in function can be controlled the automatic in-line monitor for acidity of yellow water in storage pool of spirit brewery of on-line monitoring automatically.
The present invention is achieved in that
In the automatic titration cell 4 of the present invention the yellow water sample solution of Jiao Chi and the mixed liquor of electrolytic solution are arranged.Have electrolysis electrode to be connected with automatic coulomb meter 8 in the mixed liquor, have indicator electrode to be connected with terminal point controller 20, terminal point controller 20 is connected with coulomb meter 8, and the output of coulomb meter 8 is connected with computing machine 19.
Yellow water acidity automatic sampling apparatus have resampling filter device 1 be arranged in white wine cellar and with sampling pump P
1Connect sampling pump P
1Switch be connected sampling pump P with relay 2
1Successively by three-way solenoid valve T
1, sampling pipe 3, three-way solenoid valve T
2Be connected T-valve T with automatic titration cell 4
1Pipeline and infusion pump P
2Connect infusion pump P
2Be connected infusion pump P by switching valve V with electrolytic solution case 6 with cleaning fluid tank 5
2Switch be connected with relay 7, automatically the input of the terminal point mode selector switch 9 of coulomb meter 8 is connected with indicator electrode C, D, E, its output is connected with the Faradaic current translation circuit 15 of terminal point controller 20 through micro voltage or little current amplification circuit 11, differentiating circuit 12, trigger circuit 13, switch executive circuit 14, the input of Faradaic current translation circuit 15 is connected with electrolysis electrode A, B, output is connected with electric weight integrating circuit 16, signal processing module 17, communication interface 18, computing machine 19, and relay 2,7 is connected with computing machine 19.
Electrolytic solution of the present invention is the solution of salt and acid.
Salt of the present invention is glazier's salt, and said acid is sulfuric acid, and electrode A, B electrolysis in automatic titration cell 4 produce OH
-Ion.
Indicator electrode C, D in the electrolytic solution, the OH of E in electrolytic solution
-Send pulse signal when reaching home with the organic acid reaction in the yellow water to terminal point mode selector switch 9, selector switch machine 9 can be selected output voltage signal or current signal.
The micro voltage signal Vi of terminal point mode selector switch 9 outputs or little current signal I are through resistance R
1Connect the normal phase input end of amplifier, be connected to resistance R FF between the output end vo of this end and amplifier.
The signal of amplifier output is connected to resistance R FF through the VI of the capacitor C input amplifier of differentiating circuit 12 end between this end and amplifier out Vo.
The pulse signal of differentiating circuit output is through the resistance R of trigger circuit 13
1Meet transistor T
4Base stage, T
4Emitter connect the relay J of switch executive circuit 14.
Relay J meets the photodiode T of Faradaic current translation circuit
5, photodiode T
5Meet power supply and electrolysis electrode A, B, potentiometer W is arranged on the power circuit.
The current signal of power circuit is through the sampling switch T of electric weight integrating circuit 16
5After the sampling, through R
1Send into sampling A LF198, its output converts frequency signal to through V/F conversion chip AD695, send the frequency divider frequency division, send computing machine 19 integrating electric weight by signal processing module 17.
Measuring accuracy height of the present invention, diverse in function.Decapacitation is finished outside the off-line measurement, can also realize the automatic on-line monitoring to the yellow water acidity in the pond, sealing cellar for storing things.Yellow water acidity automatic on-line monitoring instrument has following function: the sampling of yellow water timing automatic, dilution, add electrolytic solution, automatic titration is also controlled titration end-point, the acidity automatic gauge, Monitoring Data transfers to computer system through communication interface and handles, stores, shows, tabulates and make the time dependent dynamic curve diagram of acidity.
Following is accompanying drawing of the present invention:
Fig. 1 is a system chart of the present invention.
Fig. 2 is automatic coulomb meter and terminal point control structure block diagram.
Fig. 3 is micro voltage amplification principle figure.
Fig. 4 is little electric current amplification principle figure.
Fig. 5 is the differentiating circuit schematic diagram.
Fig. 6 is the trigger circuit schematic diagram.
Fig. 7 Faradaic current translation circuit schematic diagram.
Fig. 8 is electric weight integrating circuit theory diagrams.
Following is embodiments of the invention:
The present invention is made up of following each major part: the resampling filter device; Sampling pump P
1A sample presentation solenoid valve T samples
1, T
2Infusion pump P
2Switching valve V; Automatic coulomb meter 8, magnetic stirrer 10; Automatic titration cell 4; Titration end-point control device 20; System cleaning device V, P
2, T
1, T
2, T
3Data processing and communication device; Running program controller and computing machine 19.Sampling pump P
1, infusion pump P
2, switching valve V, three-way solenoid valve T
1, T
2, two-way electromagnetic valve opens closed instruction control by computing machine 19.Fig. 2 is automatic coulomb meter and terminal point control structure block diagram, wherein polarized circuit measurement terminal point mode selector switch, micro voltage amplification or little electric current amplification, differentiating circuit, trigger circuit, switch executive circuit are the terminal point control system, and terminal point mode selector switch can be selected control of Electric potentials or Current Control as required.Faradaic current translation circuit 15 is made up of voltage source, buffer circuit and follow circuit, and the Faradaic current variable size changes the emitter resistance size and obtains.Electrolysis of the present invention loop is what to separate with the electric current in indication loop, so can not produce electrolysis to the interference of indication.Electric weight integrating circuit 16 comprises current sampling circuit, and V-F change-over circuit and integer circuit, frequency dividing circuit are formed, and its integral accuracy can reach 0.2-0.3%.Electric current adopts fixedly integrated voltage stabilizer of 15V, lasting accuracy height.
Function of the present invention is achieved in that computing machine 19 regularly sends instruction, and trigger relay drives sampling pump work, and yellow water quantitatively is full of sampling pipe.Sampling pump quits work then, and infusion pump drives electrolytic solution the yellow water in the sampling pipe is imported automatic titration cell.Automatically at glazier's salt, electrolysis produces OH to coulomb meter generation Faradaic current in the sulfuric acid electrolyte by electrolysis electrode A, B
-Ion.Automatically carry out electrolysis, produce titrant alkali, newborn alkali immediately with yellow water in organic acid reaction, when reaction reached terminal point, indicator electrode sent pulse signal to C.D.E.Send pulse signal to trigger circuit by the terminal point controller, the pull switch executive circuit removes to drive relay 14 electrolysis is stopped again.The electric weight that electrolytic process consumes with in and in the yellow water organic acid institute alkali consumption suitable, this electric quantity signal just can show yellow water acidity in real time by Computer Processing.Subsequently, computing machine sends instruction and opens automatic titration cell solenoid valve, effluent discharge, and infusion pump drives cleaning fluid and cleans, thereby finishes on-line monitoring one time.
The operation control and the data acquisition of system are finished by single-chip microcomputer, and the sequential control of measuring sees Table 1 automatically.
Table 1 acidity automatic on-line monitoring sequential control
| State | Clean | Emptying | Sampling | Sample introduction | Titration |
| ?P1 | Sampling | ||||
| ?P2 | Clean | Sample introduction | |||
| ?V | Clean | Sample introduction | |||
| ?T1 | Clean | Sample introduction | |||
| ?T2 | Clean | Sample introduction | |||
| ?T3 | Emptying |
Claims (10)
1, a kind of automatic in-line monitor for acidity of yellow water in storage pool of spirit brewery.It is characterized in that the yellow water sample solution of Jiao Chi and the mixed liquor of electrolytic solution are arranged in the automatic titration cell (4).Have electrolysis electrode to be connected with automatic coulomb meter (8) in the mixed liquor, have indicator electrode to be connected with terminal point controller (20), terminal point controller (20) is connected with coulomb meter (8), and the output of coulomb meter (8) is connected with computing machine (19).
2, monitor according to claim 1, it is characterized in that yellow water acidity automatic sampling apparatus have resampling filter device (1) be arranged in white wine cellar and with sampling pump P
1Connect sampling pump P
1Switch be connected sampling pump P with relay (2)
1Successively by three-way solenoid valve T
1, sampling pipe (3), three-way solenoid valve T
2Be connected T-valve T with automatic titration cell (4)
1Pipeline and infusion pump P
2Connect infusion pump P
2Be connected its infusion pump P by switching valve V with electrolytic solution case (6) with cleaning fluid tank (5)
2Switch be connected with relay (7), the input and the indicator electrode (C of the terminal point mode selector switch (9) of automatic coulomb meter (8), D, E) connect, its output is through micro voltage or little current amplification circuit (11), differentiating circuit (12), trigger circuit (13), switch executive circuit (14) is connected with the Faradaic current translation circuit (15) of terminal point controller (20), the input of Faradaic current translation circuit (15) and electrolysis electrode (A, B) connect, output and electric weight integrating circuit (16), signal processing module (17), communication interface (18), computing machine (19) connects, relay (2), (7) be connected with computing machine (19).
3, monitor according to claim 1 and 2 is characterized in that electrolytic solution is the solution of salt and acid.
4, monitor according to claim 3 is characterized in that said salt is glazier's salt, and said acid is sulfuric acid, and electrode (A, the B) electrolysis in automatic titration cell (4) produces OH
-Ion.
5,, it is characterized in that the OH of indicator electrode (C, D, E) in electrolytic solution in the electrolytic solution according to claim 1 or 2 or 3 or 4 described monitors
-Send pulse signal when reaching home with the organic acid reaction in the yellow water to terminal point mode selector switch (9), selector switch machine (9) can be selected output voltage signal or current signal.
6, monitor according to claim 2 is characterized in that the micro voltage signal Vi of terminal point mode selector switch (9) output or little current signal I are through resistance R
1Connect the normal phase input end of amplifier, be connected to resistance R FF between the output end vo of this end and amplifier,
7, monitor according to claim 2, the signal that it is characterized in that amplifier output is connected to resistance R FF through the VI of the capacitor C input amplifier of differentiating circuit (12) end between this end and amplifier out Vo.
8, monitor according to claim 2 is characterized in that the resistance R of the pulse signal of differentiating circuit output through trigger circuit (13)
1Meet transistor T
4Base stage, T
4Emitter connect the relay J of switch executive circuit (14).
9, monitor according to claim 2 is characterized in that relay J meets the photodiode T of Faradaic current translation circuit (15)
5, photodiode T
5Connect power supply and electrolysis electrode (A, B), potentiometer W is arranged on the power circuit.
10, monitor according to claim 2 is characterized in that the sampling switch T of the current signal of power circuit through electric weight integrating circuit (16)
5After the sampling, through R
1Send into sampling A LF198, its output converts frequency signal to through V/F conversion chip AD695, send the frequency divider frequency division, send computing machine (19) integrating electric weight by signal processing module (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011071826A CN1153962C (en) | 2001-02-26 | 2001-02-26 | Automatic in-line monitor for acidity of yellow water in storage pool of spirit brewery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011071826A CN1153962C (en) | 2001-02-26 | 2001-02-26 | Automatic in-line monitor for acidity of yellow water in storage pool of spirit brewery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1306208A true CN1306208A (en) | 2001-08-01 |
| CN1153962C CN1153962C (en) | 2004-06-16 |
Family
ID=4656132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011071826A Expired - Fee Related CN1153962C (en) | 2001-02-26 | 2001-02-26 | Automatic in-line monitor for acidity of yellow water in storage pool of spirit brewery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1153962C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856221A (en) * | 2017-11-30 | 2019-06-07 | 中国科学院大连化学物理研究所 | On-line monitoring system that is a kind of while detecting hydrazine nitrate, hydroxylamine nitrate |
| CN111141724A (en) * | 2020-03-19 | 2020-05-12 | 茅台学院 | On-line detection device for saccharomyces cerevisiae fermentation broth yeast activity based on Raman spectrum |
-
2001
- 2001-02-26 CN CNB011071826A patent/CN1153962C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856221A (en) * | 2017-11-30 | 2019-06-07 | 中国科学院大连化学物理研究所 | On-line monitoring system that is a kind of while detecting hydrazine nitrate, hydroxylamine nitrate |
| CN109856221B (en) * | 2017-11-30 | 2021-06-01 | 中国科学院大连化学物理研究所 | On-line monitoring system for simultaneously detecting hydrazine nitrate and hydroxylamine nitrate |
| CN111141724A (en) * | 2020-03-19 | 2020-05-12 | 茅台学院 | On-line detection device for saccharomyces cerevisiae fermentation broth yeast activity based on Raman spectrum |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1153962C (en) | 2004-06-16 |
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