CN115161135B - Yeast emission identification control system in beer fermentation process - Google Patents

Yeast emission identification control system in beer fermentation process Download PDF

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CN115161135B
CN115161135B CN202210825758.3A CN202210825758A CN115161135B CN 115161135 B CN115161135 B CN 115161135B CN 202210825758 A CN202210825758 A CN 202210825758A CN 115161135 B CN115161135 B CN 115161135B
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yeast
waste
tank
valve
discharge
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CN115161135A (en
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请求不公布姓名
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Shenyang Keaisi Intelligent Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C13/00—Brewing devices, not covered by a single group of C12C1/00 - C12C12/04
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C11/00—Fermentation processes for beer
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
    • C12M41/48—Automatic or computerized control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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Abstract

The invention provides a yeast emission identification control system in a beer fermentation process, which comprises a PLC, a detection element and an execution element, wherein the combined action of the PLC, the detection element and the execution element realizes three works of discharging condensate in the beer fermentation process, recovering yeast and discharging redundant yeast or directly discharging waste, and timing waste discharge after recovering yeast or directly discharging waste.

Description

Yeast emission identification control system in beer fermentation process
Technical Field
The invention belongs to the technical field of beer processing and manufacturing, and particularly relates to a yeast discharge identification control system in a beer fermentation process.
Background
In the beer fermentation production process, beer yeast with strong cohesiveness is generally adopted, when the fermentation degree reaches the condensation point, the yeast in the fermentation liquor is coagulated and settled at the bottom of the fermentation tank, and the yeast is in a mud state at the moment, so-called yeast mud, and the yeast mud which is not recycled is the waste yeast. The longer the yeast mud is stored in the fermentation tank, the more the yeast dies and is autolyzed, the generated bad flavor substances are dissolved in the beer and damage the flavor of the beer, so the waste yeast mud settled at the cone bottom of the fermentation tank is discharged out of the fermentation tank in time, and the quality of the beer is not influenced. At present, the production process and the waste yeast discharge frequency of all large and medium-sized beer production enterprises are different, but basically the beer flavor hazard caused by yeast autolysis is avoided through repeated discharge.
At present, the yeast in the fermentation process is discharged manually, namely, a valve at the bottom of the fermentation tank is manually opened to discharge, the opening of a manual regulating valve at the bottom of the tank is manually regulated, whether the yeast reaches a discharge standard (namely, the content of yeast in discharged liquid) is judged by manual observation through a sight glass arranged at the bottom of the fermentation tank, and after the manual observation judges that the standard is met, the valve at the bottom of the fermentation tank and the manual regulating valve are manually closed to finish the discharge of the yeast.
The fermentation tanks of large-scale beer production factories are more, need the manual work to frequently carry out and discharge yeast operation, consume a large amount of manpower work, still have different operating personnel to judging whether reach emission standard through the observation simultaneously, have great error. Even forgetting to discharge problems can occur, making the stability of the beer fermentation quality difficult to control.
Disclosure of Invention
Aiming at the problems, the invention provides a beer fermentation process yeast discharge identification control system, which realizes full intelligent control of beer fermentation process yeast discharge, improves the stability of beer fermentation quality and reduces manual labor.
The aim of the invention is realized by the following technical scheme:
A beer fermentation process yeast emission identification control system, comprising:
the detection element is used for stopping detection of the yeast discharge signal and stopping detection of the water jacking signal, namely an impedance spectrum sensor, a continuous liquid level sensor, a flowmeter and a proximity switch; the impedance spectrum sensor is arranged at the bottom area of the fermentation tank and is used for detecting the numerical value change of the impedance characteristic coefficient of the discharged liquid in real time and transmitting a real-time numerical value change signal to the PLC so as to judge whether the discharge stopping standard parameter is met or not; the impedance spectrum sensors arranged in the inlet areas of the cold condensate tank, the yeast storage tank and the waste yeast tank are used for detecting the numerical value change of the impedance characteristic coefficient of the discharged liquid in the water jacking period in real time and transmitting a real-time numerical value change signal to the PLC so as to judge whether the standard parameters of water jacking stop are met; the continuous liquid level sensors arranged at the bottoms of the cold condensate tank and the waste yeast tank are used for detecting the liquid level height in the tank in real time and transmitting real-time continuous liquid level signals to the PLC so as to judge whether the condition of receiving and discharging liquid is met or not; the flowmeter is used for measuring the recovery amount of the yeast and transmitting a real-time recovery amount signal to the PLC so as to judge whether the recovery amount parameter meets the set recovery amount parameter; the proximity switch is used for detecting a state signal of the valve opening or closing and transmitting the real-time state signal to the PLC so as to judge whether the state of the valve opening or closing is correct or not;
The PLC is provided with a condition parameter of yeast discharge and a standard parameter for stopping yeast discharge, and after judging that the yeast discharge detection signal meets the condition parameter, the PLC starts a yeast discharge program and controls the execution element to perform yeast discharge; after the impedance spectrum sensor detects that the impedance characteristic coefficient value of the discharged liquid is larger than or equal to the standard parameter for stopping yeast discharge, the PLC stops a yeast discharge program and controls the executive component to stop yeast discharge; wherein the yeast discharge comprises cold coagulation discharge, yeast recovery and waste discharge of redundant yeast or direct waste discharge of waste yeast, and timing waste discharge after yeast recovery or direct waste discharge;
the execution element comprises a pump and a valve, wherein the pump comprises a yeast recovery pump for recovering yeast and a waste yeast pump for discharging redundant yeast into a waste yeast tank, and the valve comprises a tank bottom three-way valve in a tank bottom area of a fermentation tank, a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, a cold condensate discharging three-way valve arranged in the tank bottom area of the fermentation tank, a cold condensate tank inlet valve, a tap water top valve, a deoxidized water top valve, a yeast storage tank inlet drain valve, a yeast recovery pump front valve, a waste yeast tank inlet valve and a waste yeast pump front valve.
Further, the system comprises a cold condensate discharging module, wherein the stop detection sensor included in the module is a cold condensate discharging stop detection sensor arranged on a cold condensate discharging pipeline in the tank bottom area of the fermentation tank and a stop water jacking detection sensor arranged on a cold condensate pipeline in the inlet area of the cold condensate tank; the module comprises a first continuous liquid level sensor arranged at the bottom of the cold condensate tank; the module comprises a valve which is a tank bottom three-way valve in the tank bottom area of the fermentation tank, a cold condensate discharging three-way valve arranged in the tank bottom area of the fermentation tank, a cold condensate inlet valve, a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank and a tap water top valve; the condition parameters of the cold condensate discharge of the module comprise cold condensate filling level, fermentation time and proper opening parameters set by a regulating valve which meet the cold condensate discharge condition; the standard stop parameter of the cold coagulation discharge of the module comprises a standard point impedance characteristic coefficient value of the cold coagulation stop discharge and a standard point impedance characteristic coefficient value of the top water stop.
Further, the cold coagulation discharge process of the cold coagulation discharge module is as follows:
When the PLC judges the fermentation time and the filling level of the cold condensate obtained by the first continuous liquid level sensor simultaneously meet the set cold condensate discharging strip, starting to execute a cold condensate discharging program;
opening a tank bottom three-way valve and a cold condensate discharging three-way valve of a tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a cold condensate discharging pipeline;
opening an inlet valve of the cold condensate tank, opening a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and automatically adjusting to a set proper opening degree to slowly discharge the cold condensate at an optimal flow rate;
when the impedance spectrum sensor arranged on the cold condensate discharging pipeline in the tank bottom area of the fermentation tank detects that the value of the impedance characteristic coefficient of discharged liquid is larger than or equal to a set value in real time, closing the pneumatic adjusting butterfly valve and the tank bottom three-way valve in the tank bottom area of the fermentation tank;
the opening state of the three-way valve for discharging the cold condensate is adjusted to enable the tap water top water pipeline and the cold condensate discharging pipeline to be in a communicating state;
starting a tap water top valve, and using tap water to push cold coagulum in a pipeline into a cold coagulum tank;
when the impedance characteristic coefficient value of the liquid in the pipeline detected by the impedance spectrum sensor arranged in the inlet area of the cold coagulation tank in real time is larger than or equal to a set value, the tap water top valve, the cold coagulation discharge three-way valve and the cold coagulation tank inlet valve are closed, and the cold coagulation discharge work is finished.
Further, the system comprises a yeast recovery and redundant yeast waste or waste yeast direct waste discharge module, wherein the module comprises a stop detection sensor which is a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the bottom area of a fermentation tank, a stop water jacking detection impedance spectrum sensor arranged on a yeast recovery pipeline in the inlet area of a yeast storage tank and a stop water jacking detection impedance spectrum sensor arranged on a yeast waste discharge pipeline in the inlet area of a waste yeast tank; the module comprises a second continuous liquid level sensor arranged at the bottom of the waste yeast tank; the module comprises a tank bottom three-way valve of a tank bottom area of the fermentation tank, a pneumatic adjusting butterfly valve of the tank bottom area of the fermentation tank, a deoxidized water top water valve arranged at an inlet area of a yeast storage tank arranged on a yeast recovery pipeline, a yeast storage tank inlet valve, a yeast storage tank inlet blow-down valve, a yeast recovery pump front valve, a waste yeast tank inlet valve of a waste yeast tank inlet area arranged on a yeast waste discharge pipeline and a waste yeast pump front valve; the module further comprises the flowmeter, the flowmeter being a first flowmeter disposed on a yeast recovery line; the module comprises a yeast recovery pump arranged on a yeast recovery pipeline and a waste yeast pump arranged on a yeast waste discharge pipeline; the condition parameters of the module for recovering the yeast and discharging the waste redundant yeast or directly discharging the waste yeast comprise fermentation sugar degree, yeast propagation algebra, waste yeast tank liquid level, yeast recovery quantity and proper opening parameters set by a regulating valve, wherein the fermentation sugar degree and the yeast propagation algebra meet the yeast recovery condition; the standard parameters of stopping yeast recovery and waste yeast discharge or direct waste yeast discharge of the module comprise standard point impedance characteristic coefficient values of stopping yeast recovery/waste discharge and standard point impedance characteristic coefficient values of stopping water ejection.
Further, the device also comprises a second flowmeter arranged on the yeast waste discharge pipeline and used for being used as a cumulative metering of the waste yeast quantity.
Further, the process of yeast recovery and waste yeast discharge or direct waste yeast discharge is as follows:
when the PLC judges that the fermentation sugar degree and the liquid level of the waste yeast tank obtained by the second liquid level sensor meet the set yeast recovery condition parameters and the yeast propagation algebra is smaller than or equal to the set value parameters, starting to execute a yeast recovery and redundant yeast waste discharge program;
opening a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank and a tank bottom three-way valve in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a yeast recovery pipeline;
starting a front valve of a yeast recovery pump and an inlet valve of a yeast storage tank, starting the yeast recovery pump to start yeast recovery, and automatically adjusting a pneumatic adjusting butterfly valve of the tank bottom area of the fermentation tank to a set proper opening according to the impedance characteristic coefficient value of discharged liquid detected in real time by a yeast recovery/waste discharge stop detection impedance spectrum sensor on a yeast recovery/waste discharge pipeline arranged in the tank bottom area of the fermentation tank, so that the yeast is discharged at an optimal flow rate;
stopping the yeast recovery pump and closing the inlet valve of the yeast storage tank when the yeast recovery amount measured by the first flowmeter is larger than or equal to a yeast recovery amount set value required to be recovered;
Opening a front valve of the waste yeast pump and an inlet valve of the waste yeast tank, starting the waste yeast pump, and discharging redundant yeast into the waste yeast tank;
when the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stopping detection impedance spectrum sensor is larger than or equal to a set value, immediately closing a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and stopping the waste yeast pump;
the method comprises the steps of adjusting the opening state of a tank bottom three-way valve in the tank bottom area of a fermentation tank to enable a deoxygenated water top water pipeline to be in a communication state with a yeast recovery and waste discharge pipeline, and simultaneously opening an inlet drain valve of a yeast storage tank;
opening a deoxidized water top water valve, and using deoxidized water to respectively push yeast in the pipeline to a yeast storage tank inlet blow-down valve to be discharged into a sewer and a waste yeast tank;
when the impedance characteristic coefficient value of the liquid in the detection pipeline of the stopped water-jacking detection impedance spectrum sensor on the yeast recovery pipeline is larger than or equal to a set value, closing a front valve of the yeast recovery pump and an inlet drain valve of the yeast storage tank;
when the impedance characteristic coefficient value of the liquid in the detection pipeline of the stop water-jacking detection impedance spectrum sensor on the yeast waste discharge pipeline is larger than or equal to a set value, closing the inlet valve of the waste yeast tank and the front valve of the waste yeast pump;
When the front valve of the yeast recovery pump, the inlet blow-down valve of the yeast storage tank, the inlet valve of the waste yeast tank and the front valve of the waste yeast pump are all in a closed state, the deoxygenated water top water valve and the tank bottom three-way valve of the tank bottom area of the fermentation tank are closed, and then the work of recovering and discharging the redundant yeast is finished.
When the PLC judges that the fermentation sugar degree and the liquid level of the waste yeast tank meet the set yeast direct waste discharge condition parameters and the yeast propagation algebra is larger than the set value parameters, starting to execute a yeast direct waste discharge program;
opening a pneumatic adjusting butterfly valve in a tank bottom area of the fermentation tank and a tank bottom three-way valve in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a yeast waste discharge pipeline;
starting a front valve of a waste yeast pump and an inlet valve of a waste yeast tank, starting the waste yeast pump to discharge waste yeast, and simultaneously automatically adjusting a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank to a set proper opening according to the impedance characteristic coefficient value of the real-time detection discharged liquid detected by a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the tank bottom area of the fermentation tank, so that the waste yeast is discharged at an optimal flow rate;
when the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stopping detection impedance spectrum sensor is larger than or equal to a set value, closing a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and stopping the waste yeast pump;
The method comprises the steps of adjusting the opening state of a tank bottom three-way valve in the tank bottom area of a fermentation tank to enable a deoxygenated water jacking pipeline and a yeast waste discharge pipeline to be in a communicating state, then opening a deoxygenated water jacking valve, and jacking waste yeast in the pipeline into a waste yeast tank by using deoxygenated water;
when the impedance characteristic coefficient value of the liquid in the real-time detection pipeline of the stop water-jacking detection impedance spectrum sensor on the yeast waste discharge pipeline is larger than or equal to a set value, the inlet valve of the waste yeast tank, the front valve of the waste yeast pump, the deoxidized water-jacking valve and the tank bottom three-way valve of the tank bottom area of the fermentation tank are closed, and the yeast direct waste discharge work is finished.
Further, the system comprises a timing waste discharge module after yeast recovery or after direct waste discharge, wherein the stop detection sensor included in the module is a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the bottom area of the fermentation tank and a stop water jacking detection impedance spectrum sensor arranged on a yeast waste discharge pipeline in the inlet area of the waste yeast tank; the module comprises a second continuous liquid level sensor arranged at the bottom of the waste yeast tank; the valves included in the module are a tank bottom three-way valve in the tank bottom area of the fermentation tank, a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, a waste yeast tank inlet valve, a waste yeast pump front valve and a deoxidized water top water valve; the module comprises a pump which is a waste yeast pump arranged on a waste yeast discharge pipeline; the parameters of the timed waste discharge condition after the yeast recovery or after the direct waste discharge of the module comprise fermentation time meeting the conditions of the waste discharge of the yeast, liquid level of a waste yeast tank and parameters of proper opening degree set by a regulating valve, and the stop standard parameters of the timed waste discharge after the yeast recovery or after the direct waste discharge of the module comprise standard point impedance characteristic coefficient values of stopping the discharge of the yeast recovery/waste discharge and third standard point impedance characteristic coefficient values of stopping water ejection.
Further, the timed waste discharge process after yeast recovery or direct waste discharge is as follows:
when the PLC judges that the fermentation time and the liquid level of the waste yeast tank obtained by the second liquid level sensor simultaneously meet the set timed waste discharge condition parameters after yeast recovery or after direct waste discharge, starting a timed waste discharge program after the yeast recovery or after direct waste discharge;
opening a pneumatic adjusting butterfly valve in a tank bottom area of the fermentation tank and a tank bottom three-way valve in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a yeast waste discharge pipeline;
starting a front valve of a waste yeast pump and an inlet valve of a waste yeast tank, starting the waste yeast pump to discharge waste yeast, and simultaneously automatically adjusting a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank to a set proper opening according to the impedance characteristic coefficient value of the real-time detection discharged liquid detected by a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the tank bottom area of the fermentation tank, so that the waste yeast is discharged at an optimal flow rate;
when the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stopping detection impedance spectrum sensor is larger than or equal to a set value, closing a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and stopping the waste yeast pump;
The method comprises the steps of adjusting the opening state of a tank bottom three-way valve in the tank bottom area of a fermentation tank to enable a deoxygenated water jacking pipeline and a yeast waste discharge pipeline to be in a communicating state, then opening a deoxygenated water jacking valve, and jacking waste yeast in the pipeline into a waste yeast tank by using deoxygenated water;
when the impedance characteristic coefficient value of the liquid in the real-time detection pipeline of the stop water-jacking detection impedance spectrum sensor on the yeast waste discharge pipeline is larger than or equal to a set value, the inlet valve of the waste yeast tank, the front valve of the waste yeast pump, the deoxidized water jacking valve and the tank bottom three-way valve of the tank bottom area of the fermentation tank are closed, and the timing waste discharge work after the yeast recovery or after the direct waste discharge is finished.
The beneficial effects of the invention are as follows:
1. the sensor is adopted to replace manual observation to judge the discharge stopping standard, so that the accurate judgment of the discharge stopping standard point is realized, and the quality of the beer fermentation process is more stable;
2. the automatic regulating valve and the intelligent control program are configured, so that the flow of the discharged liquid can be regulated according to the impedance characteristic coefficient value of the discharged liquid detected by the sensor in real time, and the phenomenon that the fermentation liquid is impacted through a yeast layer to flow out due to overlarge flow rate and too fast flow rate, so that the yeast is not thoroughly discharged, more residues are left, and the quality stability of the fermentation process is influenced is avoided;
3. The full intelligent control of the yeast discharge in the beer fermentation process is realized, the manual operation and the intervention are not needed, and the manual labor is saved.
Drawings
FIG. 1 is a schematic diagram showing the construction of a yeast discharge recognition control system in a beer fermentation process according to an embodiment of the present invention.
FIG. 2 is a block diagram showing the construction of a yeast discharge recognition control system in a beer fermentation process according to an embodiment of the present invention.
FIG. 3 is a flow chart of cold set emission control according to an embodiment of the present invention.
FIG. 4 is a flow chart of yeast recovery and waste yeast discharge or direct waste yeast discharge control according to an embodiment of the present invention.
FIG. 5 is a timing waste discharge control flow chart after yeast recovery or after direct waste discharge in an embodiment of the present invention.
In the figure, 1 a cold coagulum discharge stop detection impedance spectrum sensor 2 a first stop water-jacking detection impedance spectrum sensor 3 a yeast storage tank 4 a yeast recovery/waste water-jacking detection impedance spectrum sensor 5 a tank bottom three-way valve 6 a cold coagulum discharge three-way valve 7 a yeast recovery pump 8 a first flowmeter 9 a second stop water-jacking detection impedance spectrum sensor 10 a waste yeast pump 11 a second flowmeter 12 a third stop water-jacking detection impedance spectrum sensor 13 a fermentation tank 14 a cold coagulum tank 141 a first liquid level sensor 15 a waste yeast tank 151 a second liquid level sensor T01 a pneumatic regulation butterfly valve HV01 a deoxidizing water-jacking valve HV02 a yeast recovery pump front valve HV03 a waste yeast pump front valve HV04 a tap water-jacking valve HV05 a cold coagulum tank inlet valve HV06 a yeast storage tank inlet valve HV07 a yeast storage tank inlet drain valve HV08 a waste yeast tank inlet valve.
Detailed Description
The invention is described in detail below with reference to the drawings and examples.
According to the requirements of beer fermentation technology, the cold coagulum is discharged for many times in the fermentation process, the yeast recovery or direct waste discharge is carried out for 1 time, and the waste discharge is also carried out at fixed time after the yeast recovery or the direct waste discharge, for example, 1 time for every 24 hours, until the end of the wine filtration is reached. Because the volume of the fermentation tank and the fermentation liquid amount pumped by the saccharification pump are fixed, according to the waste yeast discharge process requirement, waste yeast mud settled at the bottom of the fermentation tank is discharged as much as possible during each discharge, the product quality is ensured, and meanwhile, the mixing of the discharged fermentation liquid amount is reduced as much as possible, namely, the wine loss is reduced, and the production cost is reduced.
The background technology shows that the current yeast discharge process is completed manually, the accurate judgment of the discharge stopping standard point cannot be realized, the accurate adjustment of the discharge liquid flow cannot be realized, the stability of the beer fermentation quality is difficult to control, and the manual waste is caused.
1-2, the present embodiment provides a yeast emission recognition control system for beer fermentation process, comprising:
the detection element is used for stopping detection of the yeast discharge signal and stopping detection of the water jacking signal, namely an impedance spectrum sensor, a continuous liquid level sensor, a flowmeter and a proximity switch; the impedance spectrum sensor is arranged at the tank bottom area of the fermentation tank 13 and is used for detecting the numerical value change of the impedance characteristic coefficient of the discharged liquid in real time and transmitting a real-time numerical value change signal to the PLC so as to judge whether the discharge stopping standard parameter is met or not; impedance spectrum sensors arranged at inlet areas of the cold condensate tank 14, the yeast storage tank 3 and the waste yeast tank 15 are used for detecting the value change of the impedance characteristic coefficient of the liquid in the water jacking period in real time and transmitting a real-time value change signal to the PLC so as to judge whether the standard parameter of water jacking stop is met; the continuous liquid level sensors arranged at the bottoms of the cold condensate tank 14 and the waste yeast tank 15 are used for detecting the liquid level height in the tank in real time and transmitting real-time continuous liquid level signals to the PLC so as to judge whether the condition of receiving and discharging liquid is met or not; the flowmeter is used for measuring the recovery amount of the yeast and transmitting a real-time recovery amount signal to the PLC so as to judge whether the recovery amount parameter meets the set recovery amount parameter; the proximity switch is used for detecting a state signal of the valve opening or closing and transmitting the real-time state signal to the PLC so as to judge whether the state of the valve opening or closing is correct or not.
The PLC is provided with a condition parameter of yeast discharge and a standard parameter for stopping yeast discharge, and after judging that the yeast discharge detection signal meets the condition parameter, the PLC starts a yeast discharge program and controls an execution element to perform yeast discharge; and after the impedance spectrum sensor detects that the value of the impedance characteristic coefficient of the discharged liquid is larger than or equal to the standard impedance characteristic coefficient setting parameter, the PLC stops the yeast discharging program and controls the executive component to stop the yeast discharging.
The standard parameter for stopping the yeast discharge may specifically be a standard impedance characteristic coefficient setting parameter. The impedance characteristic coefficient ranges from 0 to 100, and the stronger the impedance characteristic is, the smaller the impedance characteristic coefficient obtained by detection is.
In the process of discharging yeast, the discharged liquid is a mixed liquid of yeast, cold coagulum and beer fermentation broth, the content of the yeast or cold coagulum in the early stage is more, the content of the beer fermentation broth is gradually increased along with the discharge, and the content of the yeast or cold coagulum is gradually reduced. And an impedance spectrum sensor arranged at the bottom area of the fermentation tank detects the impedance characteristic coefficient value of the discharged liquid in real time, and when the impedance characteristic coefficient value is greater than or equal to a set value, the yeast discharge is stopped, namely the yeast discharge is completed. Thus, the yeast discharge of this embodiment includes three processes of cold coagulation discharge, yeast recovery, and waste or waste yeast direct discharge, and timed discharge after yeast recovery or direct discharge.
Specifically, the control system can set the condition parameters of cold coagulation discharge, yeast recovery and waste yeast discharge or waste yeast direct discharge, and timing waste discharge execution after yeast recovery or direct waste discharge into a program of a PLC (programmable logic controller) through an HMI (human-computer interface), and when the execution condition triggers, the system intelligently controls corresponding pumps, valves and recognition sensors to detect signal states so as to complete the work.
The executive component comprises a pump and a valve, wherein the pump comprises a yeast recovery pump 7 for recovering yeast and a waste yeast pump 10 for discharging redundant yeast into a waste yeast tank, and the valve comprises a tank bottom three-way valve 5 in the tank bottom area of the fermentation tank, a pneumatic adjusting butterfly valve TV01 in the tank bottom area of the fermentation tank, a cold condensate discharging three-way valve 6 arranged in the tank bottom area of the fermentation tank, a cold condensate tank inlet valve HV05, a tap water top water valve HV04, a deoxidized water top water valve HV01, a yeast tank inlet valve HV06, a yeast tank inlet blowdown valve HV07, a yeast recovery pump front valve HV02, a waste yeast tank inlet valve HV08 and a waste yeast pump front valve HV03.
The yeast emission identification control system of the embodiment comprises a PLC, a detection element and an execution element, and realizes three works of discharging condensate in the beer fermentation process, recovering yeast and discharging redundant yeast or directly discharging waste yeast, and timing waste discharge after recovering yeast or directly discharging waste by intelligent program control, thereby realizing unmanned intervention and improving the quality stability of beer fermentation.
As shown in fig. 2, the present invention further provides a specific implementation manner of the yeast emission recognition control system based on the above embodiment, and fig. 2 is a block diagram of the system structure of the present implementation manner, specifically, the yeast emission recognition control system of the present implementation manner may include a cold coagulum emission module, a yeast recovery and surplus yeast waste or waste yeast direct waste discharge module, and a yeast recovery or waste yeast direct waste discharge timing module.
Wherein, for the cold condensate discharging module, the module is used for discharging cold condensate, and the stop detection sensor arranged on the module is specifically a cold condensate discharge stop detection impedance spectrum sensor 1 arranged on a cold condensate discharging pipeline in the tank bottom area of the fermentation tank, and a first stop water jacking detection impedance spectrum sensor 2 arranged on a cold condensate pipeline in the inlet area of the cold condensate tank; the valves related to the module comprise a tank bottom three-way valve 5 of the tank bottom area of the fermentation tank, a cold condensate discharging three-way valve 6 arranged in the tank bottom area of the fermentation tank, a cold condensate inlet valve HV05, a pneumatic adjusting butterfly valve TV01 of the tank bottom area of the fermentation tank and a tap water top valve HV04; in addition, the module further comprises a first continuous level sensor 141 disposed at the bottom of the cold condensate tank; the cold condensate discharging condition parameters related to the module comprise cold condensate filling level, fermentation time and proper opening parameters of a regulating valve which meet the cold condensate discharging condition; wherein, the proper opening parameter of the regulating valve is between 30 percent and 40 percent, and can be determined according to the specific adjustment of the volume and the pipe diameter of the actual fermentation tank. The standard parameters of the cold coagulum discharge of the module include a standard point impedance characteristic coefficient value of the cold coagulum stop discharge and a standard point impedance characteristic coefficient value of the top water stop.
It should be noted that, the purpose of the first continuous liquid level sensor to detect the filling level of the cold condensate in real time is to determine whether there is a space in the cold condensate tank to be filled with the cold condensate to be discharged before starting the procedure for discharging the cold condensate, if the liquid level in the cold condensate tank is higher than a set parameter, the condition for starting the procedure for discharging the cold condensate is not provided, and the liquid level must be reduced below the set value to start the procedure for discharging the cold condensate.
It should be noted that the purpose of stopping the water-jacking detection is to determine that the residual yeast water in the pipeline is jacked up cleanly without wasting excessive water, so that the value of the impedance characteristic coefficient of the standard point of water jacking stopping is constant, wherein the value of the impedance characteristic coefficient of pure water is 99 to 100, if the value is 99, and when the detection value is more than or equal to 99, the system stops water jacking.
Specifically, as shown in fig. 3, the discharging process of the cold condensate of the present embodiment is as follows:
when the PLC judges that the filling level and the fermentation time of the cold condensate meet the set cold condensate discharge conditions at the same time, starting to execute a cold condensate discharge program;
opening a tank bottom three-way valve 5 and a cold condensate discharging three-way valve 6 in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be communicated with a cold condensate discharging pipeline;
Opening an inlet valve HV05 of the cold coagulation tank, opening a pneumatic adjusting butterfly valve TV01 in the bottom area of the fermentation tank, and automatically adjusting to a set proper opening, so as to ensure that cold coagulation is slowly discharged at an optimal flow rate, and avoid incomplete discharge of the cold coagulation caused by the fact that fermentation liquor breaks down and flows out due to too high flow rate;
when the impedance spectrum sensor 1 arranged on the cold condensate discharging pipeline in the tank bottom area of the fermentation tank detects that the impedance characteristic coefficient value of the discharged liquid is larger than or equal to a set value (the standard point impedance characteristic coefficient value of the cold condensate stopping discharging obtained through testing), the pneumatic adjusting butterfly valve TV1 and the tank bottom three-way valve 5 in the tank bottom area of the fermentation tank are closed;
the opening state of the three-way valve 6 of the cold condensate discharging is adjusted to be in a state that a top water pipeline is communicated with the cold condensate discharging pipeline;
opening a tap water top water valve HV04, and using tap water to push cold coagulum in a pipeline into a cold coagulum tank;
when the impedance characteristic coefficient value of the liquid in the real-time detection pipeline of the first stop top water detection impedance spectrum sensor 2 arranged in the inlet area of the cold condensate tank is larger than or equal to a set value (the impedance characteristic coefficient value of the first standard point of the stop top water obtained through testing), the tap water top water valve HV04, the cold condensate discharge three-way valve 6 and the cold condensate tank inlet valve HV05 are closed, and the cold condensate discharge work is finished.
For the yeast recovery and surplus yeast waste discharge or waste yeast direct waste discharge module, the function is to perform waste discharge on surplus yeast after quantitatively recovering yeast when the yeast propagation algebra is smaller than or equal to a set value parameter; when the yeast propagation algebra is larger than the set value parameter, the waste yeast is directly discharged. The stop detection sensor arranged in the module comprises a yeast recovery/waste discharge stop detection impedance spectrum sensor 4 arranged on a yeast recovery/waste discharge pipeline in the bottom area of the fermentation tank, a second stop water-jacking detection impedance spectrum sensor 9 arranged on a yeast recovery pipeline in the inlet area of the yeast storage tank, and a third stop water-jacking detection impedance spectrum sensor 12 arranged on a yeast waste discharge pipeline in the inlet area of the waste yeast tank; the module also comprises a second continuous liquid level sensor 151 arranged at the bottom of the waste yeast tank; the valves according to the present module include a tank bottom three-way valve 5 in the tank bottom region of the fermenter, a pneumatic control butterfly valve TV01 in the tank bottom region of the fermenter, a deoxygenated water top water valve HV01, a yeast tank inlet valve HV06, a yeast tank inlet drain valve HV07, a yeast recovery pump front valve HV02 in the inlet region of the yeast tank provided in the yeast recovery line, and a waste yeast tank inlet valve HV08 and a waste yeast pump front valve HV03 in the inlet region of the waste yeast tank provided in the yeast waste discharge line. The module also comprises a flowmeter, in particular a first flowmeter 8 arranged on the yeast recovery pipeline and used for measuring the recovered yeast amount in real time, and stopping recovering the yeast and switching to waste discharge of redundant yeast when the real-time recovered amount is more than or equal to a set value; optionally, the system also comprises a second flowmeter 11 arranged on the yeast waste discharge pipeline and used for accumulating and metering the amount of waste yeast, but does not participate in control; the module further comprises a yeast recovery pump 7 arranged on the yeast recovery pipeline and a waste yeast pump 10 arranged on the yeast waste discharge pipeline. The condition parameters of the yeast recovery and waste discharge of redundant yeast or direct waste discharge of waste yeast of the module comprise parameters of fermentation sugar degree, waste yeast tank liquid level, yeast breeding algebra, yeast recovery quantity and proper opening degree of regulating valve setting which meet the condition of waste discharge of the yeast; the standard parameters of stopping yeast recovery and waste yeast discharge or direct waste yeast discharge of the module comprise standard point impedance characteristic coefficient values of stopping yeast recovery/waste discharge and stopping water ejection.
The purpose of the second continuous liquid level sensor to detect the liquid level of the waste yeast is to determine whether there is a space in the waste yeast tank for discharging the waste yeast or the yeast directly discharged after the waste yeast recovery or the waste yeast directly discharged before starting the process of "yeast recovery and waste yeast directly discharged or waste yeast directly discharged" and to determine the amount of the waste yeast directly discharged after the waste yeast recovery or waste yeast directly discharged after the waste yeast recovery ", if the liquid level of the waste yeast tank is higher than the set parameters (" the liquid level of the waste yeast recovery and waste yeast directly discharged "or waste yeast directly discharged" is two different parameters, the amount of the waste directly discharged is large, a large space is needed in the tank, a small space is needed in the tank after the recovery, the actual set value is determined after the test according to the actual project condition), and if the liquid level of the waste yeast tank is higher than the set parameters of the corresponding process is not provided, the liquid level must be reduced below the set values to start the corresponding process.
It should be noted that, when the yeast breeding algebra set value is different in different production factories or different beer fermentation broth varieties, for example, the set value is "8", when the currently used yeast breeding algebra is less than or equal to 8, the yeast recovery and redundant yeast waste discharging module is started; and the current yeast propagation algebra is more than 8, and starting a yeast direct waste discharge module. The smaller the number of yeast propagation generations, the stronger the yeast activity, and the stronger the usability. When the yeast propagation algebra reaches a certain algebra, the usability is not provided, the fermentation quality of the beer fermentation broth cannot be ensured, and the waste discharge treatment is required.
When the detection value of the yeast recovery/waste discharge stop detection impedance spectrum sensor is less than 88, the opening degree of the regulating valve is controlled to be 100%, and when the detection value of the yeast recovery/waste discharge stop detection impedance spectrum sensor is more than or equal to 88, the opening degree of the regulating valve is controlled to be 30% -40%, and the regulating valve is determined according to the specific adjustment of the volume and the pipe diameter of an actual fermentation tank.
Specifically, as shown in fig. 4, the yeast recovery and waste yeast discharge or waste yeast direct discharge process of the present embodiment is as follows:
when the PLC judges that the fermentation sugar degree and the liquid level of the waste yeast tank meet the set yeast recovery condition parameters and the yeast propagation algebra is smaller than or equal to the set value parameters, starting to execute a yeast recovery and redundant yeast waste discharge program;
opening a pneumatic control butterfly valve TV01 in the tank bottom area of the fermentation tank and a tank bottom three-way valve 5 in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be communicated with a yeast recovery pipeline;
starting a yeast recovery pump front valve HV02 and a yeast storage tank inlet valve HV06, starting a yeast recovery pump 7 to start yeast recovery, and automatically adjusting a proper opening set by a pneumatic adjusting butterfly valve TV01 in the tank bottom area of the fermentation tank according to the impedance characteristic coefficient value of discharged liquid detected in real time by a yeast recovery/waste discharge stop detection impedance spectrum sensor 4 on a yeast recovery/waste discharge pipeline arranged in the tank bottom area of the fermentation tank, so that the yeast is discharged at an optimal flow rate, and the quality of the recovered yeast is ensured;
When the yeast recovery amount measured by the first flowmeter 8 is larger than or equal to a yeast recovery amount set value to be recovered, stopping the yeast recovery pump 7, and closing the yeast storage tank inlet valve HV06;
opening a waste yeast pump front valve HV03 and a waste yeast tank inlet valve HV08, starting a waste yeast pump 10, and discharging redundant yeast into a waste yeast tank 15;
when the impedance characteristic coefficient value of the yeast recovery/waste discharge stop detection impedance spectrum sensor for detecting the discharged liquid in real time is larger than or equal to a set value (the standard point impedance characteristic coefficient value of the yeast recovery/waste discharge stop discharge obtained through testing), the pneumatic control butterfly valve TV01 of the tank bottom area of the fermentation tank is immediately closed, and the waste yeast pump 10 is stopped;
the opening state of a tank bottom three-way valve 5 in the tank bottom area of the fermentation tank is adjusted to be in a state of communicating a deoxygenated water top water pipeline with a yeast recovery and waste discharge pipeline, and simultaneously, an inlet drain valve HV07 of a yeast storage tank is opened;
opening a deoxidized water top water valve HV01, and using deoxidized water to respectively push yeasts in the pipeline to an inlet drain valve HV07 of the yeast storage tank 15 to be discharged into a sewer and a waste yeast tank 15;
when the impedance characteristic coefficient value of the liquid in the second stop water-jacking detection impedance spectrum sensor detection pipeline on the yeast recovery pipeline is larger than or equal to a set value (namely, the standard point impedance characteristic coefficient value of the stop water-jacking obtained through testing), closing a yeast recovery pump front valve HV02 and a yeast storage tank inlet drain valve HV07;
When the impedance characteristic coefficient value of the liquid in the third stop water-jacking detection impedance spectrum sensor detection pipeline on the yeast waste discharge pipeline is larger than or equal to a set value, closing the waste yeast tank inlet valve HV08 and the waste yeast pump front valve HV03;
when the front valve HV02 of the yeast recovery pump, the drain valve HV07 of the inlet of the yeast storage tank, the inlet valve HV08 of the waste yeast tank and the front valve HV03 of the waste yeast pump are all in a closed state, after the deoxygenated water top water valve HV01 and the tank bottom three-way valve 5 of the tank bottom area of the fermentation tank are closed, the work of yeast recovery and waste yeast discharge is finished.
When the PLC judges that the fermentation sugar degree and the liquid level of the waste yeast tank meet the set yeast direct waste discharge condition parameters and the yeast propagation algebra is larger than the set value parameters, starting to execute a yeast direct waste discharge program;
opening a pneumatic control butterfly valve TV01 in the tank bottom area of the fermentation tank and a tank bottom three-way valve 5 in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be communicated with a yeast waste discharge pipeline;
starting a waste yeast pump front valve HV03 and a waste yeast tank inlet valve HV08, starting a waste yeast pump 10 to start yeast waste discharge, and simultaneously automatically adjusting a pneumatic adjusting butterfly valve TV01 of a fermentation tank bottom area to a set proper opening according to the impedance characteristic coefficient value of discharged liquid detected in real time by a yeast recovery/waste discharge stop detection impedance spectrum sensor 4 on a yeast recovery/waste discharge pipeline arranged in the fermentation tank bottom area, so that waste yeast is discharged at an optimal flow rate, and the phenomenon that fermented wine breaks down and flows out due to too fast flow rate at the end of waste discharge, thereby causing incomplete waste yeast discharge is avoided;
When the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stop detection impedance spectrum sensor 4 is larger than or equal to a set value (the standard point impedance characteristic coefficient value of the yeast recovery/waste discharge stop discharge obtained through the test), closing the pneumatic adjustment butterfly valve TV01 in the tank bottom area of the fermentation tank, and stopping the waste yeast pump 10;
the opening state of a tank bottom three-way valve 5 in the tank bottom area of the fermentation tank is adjusted to be in a state of communicating a deoxygenated water jacking pipeline with a yeast waste discharge pipeline, then a deoxygenated water jacking valve HV01 is opened, and waste yeast in the pipeline is jacked into a waste yeast tank 15 by using deoxygenated water;
when the impedance characteristic coefficient value of the liquid in the third stopped water-jacking detection impedance spectrum sensor 12 real-time detection pipeline on the yeast waste discharge pipeline is larger than or equal to a set value (the impedance characteristic coefficient value of the third standard point of stopped water obtained through testing), the waste yeast tank inlet valve HV08, the waste yeast pump front valve HV03, the deoxidized water-jacking valve HV01 and the tank bottom three-way valve 5 in the tank bottom area of the fermentation tank are closed, and the yeast direct waste discharge work is finished.
The timing waste discharge module after yeast recovery or direct waste discharge is used for performing waste discharge of residual yeast for 1 time at fixed time after yeast recovery or direct waste discharge. The stop detection sensor arranged in the module comprises a yeast recovery/waste discharge stop detection impedance spectrum sensor 4 arranged on a yeast recovery/waste discharge pipeline in the tank bottom area of the fermentation tank and a third stop water-jacking detection impedance spectrum sensor 12 arranged on a yeast waste discharge pipeline in the inlet area of the waste yeast tank. The valves involved in the module comprise a tank bottom three-way valve 5 of the tank bottom area of the fermentation tank, a pneumatic adjusting butterfly valve TV01 of the tank bottom area of the fermentation tank, a waste yeast tank inlet valve HV08, a waste yeast pump front valve HV03 and a deoxidized water top water valve HV01. In addition, for the timing waste discharge after yeast recovery or after direct waste discharge, the pump involved includes only the waste yeast pump 10 provided on the yeast waste discharge line. The condition parameters of timed waste discharge after yeast recovery or direct waste discharge of the module comprise fermentation time meeting the condition of waste discharge of the yeast, liquid level of a waste yeast tank and parameters of proper opening degree set by a regulating valve; the standard parameters of stopping the timed waste discharge after the yeast recovery or after the direct waste discharge of the module specifically comprise the standard point impedance characteristic coefficient value of stopping the discharge in the yeast recovery/waste discharge process and the standard point impedance characteristic coefficient value of stopping the top water.
Preferably, the timed waste discharge module after yeast recovery or after direct waste discharge can be set to discharge waste 1 time every 24 hours.
It should be noted that, because of different requirements of different production factories or different beer fermentation broth varieties, the impedance characteristic coefficient of the mixed liquid of the yeast and the beer fermentation broth when the discharge is stopped can be selectively set between 90 and 96 according to actual control requirements.
The invention is characterized in that the system is arranged in the same structure as the system structure of the yeast waste discharging in the yeast waste discharging process after the recovery or the direct waste discharging, when judging that the yeast breeding algebra is larger than the set value, the system automatically determines to start the direct waste discharging process when the fermentation sugar degree and the liquid level of the waste yeast tank meet the set condition parameters, and the timed waste discharging process after the recovery or the direct waste discharging of the yeast is to automatically start 1 waste discharging process every certain time after the recovery and the waste yeast waste discharging or the direct waste discharging of the waste yeast are completed.
Specifically, as shown in fig. 5, the process of timed waste discharge after yeast recovery or direct waste discharge in this embodiment is as follows: the process is as follows:
when the PLC judges that the fermentation time and the liquid level of the waste yeast tank meet the set condition parameters of timed waste discharge after yeast recovery or direct waste discharge, starting and executing a timed waste discharge program after yeast recovery or direct waste discharge;
Opening a pneumatic control butterfly valve TV01 in the tank bottom area of the fermentation tank and a tank bottom three-way valve 5 in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be communicated with a yeast waste discharge pipeline;
starting a waste yeast pump front valve HV03 and a waste yeast tank inlet valve HV08, starting a waste yeast pump 10 to start yeast waste discharge, and simultaneously automatically adjusting a pneumatic adjusting butterfly valve TV01 of a fermentation tank bottom area to a set proper opening according to the impedance characteristic coefficient value of discharged liquid detected in real time by a yeast recovery/waste discharge stop detection impedance spectrum sensor 4 on a yeast recovery/waste discharge pipeline arranged in the fermentation tank bottom area, so that waste yeast is discharged at an optimal flow rate, and the phenomenon that fermented wine breaks down and flows out due to too fast flow rate at the end of waste discharge, thereby causing incomplete waste yeast discharge is avoided;
when the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stop detection impedance spectrum sensor 4 is larger than or equal to a set value (the standard point impedance characteristic coefficient value of the yeast recovery/waste discharge stop discharge obtained through the test), closing the pneumatic adjustment butterfly valve TV01 in the tank bottom area of the fermentation tank, and stopping the waste yeast pump 10;
the opening state of a tank bottom three-way valve 5 in the tank bottom area of the fermentation tank is adjusted to be in a state of communicating a deoxygenated water jacking pipeline with a yeast waste discharge pipeline, then a deoxygenated water jacking valve HV01 is opened, and waste yeast in the pipeline is jacked into a waste yeast tank 15 by using deoxygenated water;
When the impedance characteristic coefficient value of the liquid in the third stopped water-jacking detection impedance spectrum sensor 12 real-time detection pipeline on the yeast waste discharge pipeline is larger than or equal to a set value (the impedance characteristic coefficient value of the third standard point of stopped water obtained through testing), the waste yeast tank inlet valve HV08, the waste yeast pump front valve HV03, the deoxidized water-jacking valve HV01 and the tank bottom three-way valve 5 in the tank bottom area of the fermentation tank are closed, and the timing waste discharge work after the yeast recovery or after direct waste discharge is finished.
It should be understood that the foregoing detailed description of the present invention is provided for illustration only and is not limited to the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention may be modified or substituted for the same technical effects; as long as the use requirement is met, the invention is within the protection scope of the invention.

Claims (1)

1. A beer fermentation process yeast emission identification control system, comprising: PLC, detecting element, executing element, cold coagulation discharging module, yeast recovery and redundant yeast waste discharging or waste yeast direct waste discharging module, timing waste discharging module after yeast recovery or direct waste discharging,
The detection element is used for stopping detection of the yeast discharge signal and stopping detection of the water jacking signal, namely an impedance spectrum sensor, a continuous liquid level sensor, a flowmeter and a proximity switch; the impedance spectrum sensor is arranged at the bottom area of the fermentation tank and is used for detecting the numerical value change of the impedance characteristic coefficient of the discharged liquid in real time and transmitting a real-time numerical value change signal to the PLC so as to judge whether the discharge stopping standard parameter is met or not; the impedance spectrum sensors arranged in the inlet areas of the cold condensate tank, the yeast storage tank and the waste yeast tank are used for detecting the numerical value change of the impedance characteristic coefficient of the discharged liquid in the water jacking period in real time and transmitting a real-time numerical value change signal to the PLC so as to judge whether the standard parameters of water jacking stop are met; the continuous liquid level sensors arranged at the bottoms of the cold condensate tank and the waste yeast tank are used for detecting the liquid level height in the tank in real time and transmitting real-time continuous liquid level signals to the PLC so as to judge whether the condition of receiving and discharging liquid is met or not; the flowmeter is used for measuring the recovery amount of the yeast and transmitting a real-time recovery amount signal to the PLC so as to judge whether the recovery amount parameter meets the set recovery amount parameter; the proximity switch is used for detecting a state signal of the valve opening or closing and transmitting the real-time state signal to the PLC so as to judge whether the state of the valve opening or closing is correct or not;
The PLC is provided with a condition parameter of yeast discharge and a standard parameter for stopping yeast discharge, and starts a yeast discharge program and controls an execution element to perform yeast discharge after judging that a yeast discharge detection signal meets the condition parameter; after the impedance spectrum sensor detects that the impedance characteristic coefficient value of the discharged liquid is larger than or equal to the standard parameter for stopping yeast discharge, the PLC stops a yeast discharge program and controls the executive component to stop yeast discharge; wherein the yeast discharge comprises cold coagulation discharge, yeast recovery and waste discharge of redundant yeast or direct waste discharge of waste yeast, and timing waste discharge after yeast recovery or direct waste discharge;
the executive component comprises a pump and a valve, wherein the pump comprises a yeast recovery pump for recovering yeast and a waste yeast pump for discharging redundant yeast into a waste yeast tank, and the valve comprises a tank bottom three-way valve in a tank bottom area of a fermentation tank, a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, a cold condensate discharging three-way valve arranged in the tank bottom area of the fermentation tank, a cold condensate tank inlet valve, a tap water top valve, a deoxidized water top valve, a yeast storage tank inlet drain valve, a yeast recovery pump front valve, a waste yeast tank inlet valve and a waste yeast pump front valve;
The cold condensate discharging module comprises a stop detection sensor arranged on a cold condensate discharging pipeline in the bottom area of the fermentation tank and a stop water jacking detection sensor arranged on a cold condensate pipeline in the inlet area of the cold condensate tank; the module comprises a first continuous liquid level sensor arranged at the bottom of the cold condensate tank; the module comprises a valve which is a tank bottom three-way valve in the tank bottom area of the fermentation tank, a cold condensate discharging three-way valve arranged in the tank bottom area of the fermentation tank, a cold condensate inlet valve, a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank and a tap water top valve; the condition parameters of the cold condensate discharge of the module comprise cold condensate filling level, fermentation time and proper opening parameters set by a regulating valve which meet the cold condensate discharge condition; the standard stop parameter of the cold coagulation discharge of the module comprises a standard point impedance characteristic coefficient value of the cold coagulation stop discharge and a standard point impedance characteristic coefficient value of the top water stop;
the cold condensate discharging process of the cold condensate discharging module is as follows:
when the PLC judges the fermentation time and the filling level of the cold condensate obtained by the first continuous liquid level sensor simultaneously meet the set cold condensate discharging strip, starting to execute a cold condensate discharging program;
Opening a tank bottom three-way valve and a cold condensate discharging three-way valve of a tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a cold condensate discharging pipeline;
opening an inlet valve of the cold condensate tank, opening a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and automatically adjusting to a set proper opening degree to slowly discharge the cold condensate at an optimal flow rate;
when the impedance spectrum sensor arranged on the cold condensate discharging pipeline in the tank bottom area of the fermentation tank detects that the value of the impedance characteristic coefficient of discharged liquid is larger than or equal to a set value in real time, closing the pneumatic adjusting butterfly valve and the tank bottom three-way valve in the tank bottom area of the fermentation tank;
the opening state of the three-way valve for discharging the cold condensate is adjusted to enable the tap water top water pipeline and the cold condensate discharging pipeline to be in a communicating state;
starting a tap water top valve, and using tap water to push cold coagulum in a pipeline into a cold coagulum tank;
when the impedance characteristic coefficient value of the liquid in the pipeline detected by the impedance spectrum sensor arranged in the inlet area of the cold coagulation tank in real time is more than or equal to a set value, closing a tap water top valve, a cold coagulation discharge three-way valve and the cold coagulation tank inlet valve, and ending the cold coagulation discharge work;
the system comprises a yeast recovery and redundant yeast waste discharge or waste yeast direct waste discharge module, wherein the module comprises a stop detection sensor which is a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the tank bottom area of a fermentation tank, a stop water jacking detection impedance spectrum sensor arranged on a yeast recovery pipeline in the inlet area of a yeast storage tank and a stop water jacking detection impedance spectrum sensor arranged on a yeast waste discharge pipeline in the inlet area of a waste yeast tank; the module comprises a second continuous liquid level sensor arranged at the bottom of the waste yeast tank; the module comprises a tank bottom three-way valve of a tank bottom area of the fermentation tank, a pneumatic adjusting butterfly valve of the tank bottom area of the fermentation tank, a deoxidized water top water valve arranged at an inlet area of a yeast storage tank arranged on a yeast recovery pipeline, a yeast storage tank inlet valve, a yeast storage tank inlet blow-down valve, a yeast recovery pump front valve, a waste yeast tank inlet valve of a waste yeast tank inlet area arranged on a yeast waste discharge pipeline and a waste yeast pump front valve; the module further comprises the flowmeter, the flowmeter being a first flowmeter disposed on a yeast recovery line; the module comprises a yeast recovery pump arranged on a yeast recovery pipeline and a waste yeast pump arranged on a yeast waste discharge pipeline; the condition parameters of the module for recovering the yeast and discharging the waste redundant yeast or directly discharging the waste yeast comprise fermentation sugar degree, yeast propagation algebra, waste yeast tank liquid level, yeast recovery quantity and proper opening parameters set by a regulating valve, wherein the fermentation sugar degree and the yeast propagation algebra meet the yeast recovery condition; the standard parameters of stopping yeast recovery and waste discharge of redundant yeast or direct waste discharge of waste yeast of the module comprise standard point impedance characteristic coefficient values of stopping yeast recovery/waste discharge and stopping water ejection;
The second flowmeter is arranged on the yeast waste discharge pipeline and is used for accumulating and measuring the quantity of waste yeast;
the yeast recovery and redundant yeast waste discharge or waste yeast direct waste discharge processes are as follows:
when the PLC judges that the fermentation sugar degree and the liquid level of the waste yeast tank obtained by the second liquid level sensor meet the set yeast recovery condition parameters and the yeast propagation algebra is smaller than or equal to the set value parameters, starting to execute a yeast recovery and redundant yeast waste discharge program;
opening a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank and a tank bottom three-way valve in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a yeast recovery pipeline;
starting a front valve of a yeast recovery pump and an inlet valve of a yeast storage tank, starting the yeast recovery pump to start yeast recovery, and automatically adjusting a pneumatic adjusting butterfly valve of the tank bottom area of the fermentation tank to a set proper opening according to the impedance characteristic coefficient value of discharged liquid detected in real time by a yeast recovery/waste discharge stop detection impedance spectrum sensor on a yeast recovery/waste discharge pipeline arranged in the tank bottom area of the fermentation tank, so that the yeast is discharged at an optimal flow rate;
stopping the yeast recovery pump and closing the inlet valve of the yeast storage tank when the yeast recovery amount measured by the first flowmeter is larger than or equal to a yeast recovery amount set value required to be recovered;
Opening a front valve of the waste yeast pump and an inlet valve of the waste yeast tank, starting the waste yeast pump, and discharging redundant yeast into the waste yeast tank;
when the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stopping detection impedance spectrum sensor is larger than or equal to a set value, immediately closing a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and stopping the waste yeast pump;
the method comprises the steps of adjusting the opening state of a tank bottom three-way valve in the tank bottom area of a fermentation tank to enable a deoxygenated water top water pipeline to be in a communication state with a yeast recovery and waste discharge pipeline, and simultaneously opening an inlet drain valve of a yeast storage tank;
opening a deoxidized water top water valve, and using deoxidized water to respectively push yeast in the pipeline to a yeast storage tank inlet blow-down valve to be discharged into a sewer and a waste yeast tank;
when the impedance characteristic coefficient value of the liquid in the detection pipeline of the stopped water-jacking detection impedance spectrum sensor on the yeast recovery pipeline is larger than or equal to a set value, closing a front valve of the yeast recovery pump and an inlet drain valve of the yeast storage tank;
when the impedance characteristic coefficient value of the liquid in the detection pipeline of the stop water-jacking detection impedance spectrum sensor on the yeast waste discharge pipeline is larger than or equal to a set value, closing the inlet valve of the waste yeast tank and the front valve of the waste yeast pump;
When the front valve of the yeast recovery pump, the inlet blow-down valve of the yeast storage tank, the inlet valve of the waste yeast tank and the front valve of the waste yeast pump are all in a closed state, closing the deoxygenated water top water valve and the tank bottom three-way valve in the tank bottom area of the fermentation tank, and ending the work of recovering and discharging the redundant yeast;
when the PLC judges that the fermentation sugar degree and the liquid level of the waste yeast tank meet the set yeast direct waste discharge condition parameters and the yeast propagation algebra is larger than the set value parameters, starting to execute a yeast direct waste discharge program;
opening a pneumatic adjusting butterfly valve in a tank bottom area of the fermentation tank and a tank bottom three-way valve in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a yeast waste discharge pipeline;
starting a front valve of a waste yeast pump and an inlet valve of a waste yeast tank, starting the waste yeast pump to discharge waste yeast, and simultaneously automatically adjusting a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank to a set proper opening according to the impedance characteristic coefficient value of the real-time detection discharged liquid detected by a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the tank bottom area of the fermentation tank, so that the waste yeast is discharged at an optimal flow rate;
when the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stopping detection impedance spectrum sensor is larger than or equal to a set value, closing a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and stopping the waste yeast pump;
The method comprises the steps of adjusting the opening state of a tank bottom three-way valve in the tank bottom area of a fermentation tank to enable a deoxygenated water jacking pipeline and a yeast waste discharge pipeline to be in a communicating state, then opening a deoxygenated water jacking valve, and jacking waste yeast in the pipeline into a waste yeast tank by using deoxygenated water;
when the impedance characteristic coefficient value of the liquid in the real-time detection pipeline of the stop water-jacking detection impedance spectrum sensor on the yeast waste discharge pipeline is larger than or equal to a set value, closing the inlet valve of the waste yeast tank, the front valve of the waste yeast pump, the deoxidized water-jacking valve and the tank bottom three-way valve of the tank bottom area of the fermentation tank, and ending the direct waste discharge work of the yeast;
the system comprises a timing waste discharge module after yeast recovery or after direct waste discharge, wherein the stop detection sensor included in the module is a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the tank bottom area of the fermentation tank and a stop water jacking detection impedance spectrum sensor arranged on a yeast waste discharge pipeline in the inlet area of the waste yeast tank; the module comprises a second continuous liquid level sensor arranged at the bottom of the waste yeast tank; the valves included in the module are a tank bottom three-way valve in the tank bottom area of the fermentation tank, a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, a waste yeast tank inlet valve, a waste yeast pump front valve and a deoxidized water top water valve; the module comprises a pump which is a waste yeast pump arranged on a waste yeast discharge pipeline; the parameters of the timed waste discharge condition after the yeast recovery or after the direct waste discharge of the module comprise fermentation time meeting the conditions of the waste discharge of the yeast, liquid level of a waste yeast tank and parameters of proper opening degree set by a regulating valve, and the stop standard parameters of the timed waste discharge after the yeast recovery or after the direct waste discharge of the module comprise standard point impedance characteristic coefficient values of stopping the discharge of the yeast recovery/waste discharge and third standard point impedance characteristic coefficient values of stopping water ejection;
The timed waste discharge process after yeast recovery or direct waste discharge is as follows:
when the PLC judges that the fermentation time and the liquid level of the waste yeast tank obtained by the second liquid level sensor simultaneously meet the set direct waste discharge condition parameters of the yeast, starting and executing a timing waste discharge program after the yeast is recovered or after the direct waste discharge is carried out;
opening a pneumatic adjusting butterfly valve in a tank bottom area of the fermentation tank and a tank bottom three-way valve in the tank bottom area of the fermentation tank to enable an outlet pipeline of the fermentation tank to be in a communicating state with a yeast waste discharge pipeline;
starting a front valve of a waste yeast pump and an inlet valve of a waste yeast tank, starting the waste yeast pump to discharge waste yeast, and simultaneously automatically adjusting a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank to a set proper opening according to the impedance characteristic coefficient value of the real-time detection discharged liquid detected by a yeast recovery/waste discharge stop detection impedance spectrum sensor arranged on a yeast recovery/waste discharge pipeline in the tank bottom area of the fermentation tank, so that the waste yeast is discharged at an optimal flow rate;
when the impedance characteristic coefficient value of the discharged liquid detected by the yeast recovery/waste discharge stopping detection impedance spectrum sensor is larger than or equal to a set value, closing a pneumatic adjusting butterfly valve in the tank bottom area of the fermentation tank, and stopping the waste yeast pump;
the method comprises the steps of adjusting the opening state of a tank bottom three-way valve in the tank bottom area of a fermentation tank to enable a deoxygenated water jacking pipeline and a yeast waste discharge pipeline to be in a communicating state, then opening a deoxygenated water jacking valve, and jacking waste yeast in the pipeline into a waste yeast tank by using deoxygenated water;
When the impedance characteristic coefficient value of the liquid in the real-time detection pipeline of the stop water-jacking detection impedance spectrum sensor on the yeast waste discharge pipeline is larger than or equal to a set value, the inlet valve of the waste yeast tank, the front valve of the waste yeast pump, the deoxidized water jacking valve and the tank bottom three-way valve of the tank bottom area of the fermentation tank are closed, and the timing waste discharge work after the yeast recovery or after the direct waste discharge is finished.
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