CN208224746U - Waste yeast exhausting control device, monitoring system in a kind of beer fermentation process - Google Patents

Abstract

The utility model provides waste yeast exhausting control device and monitoring system in a kind of beer fermentation process.Waste yeast exhausting control device in the beer fermentation process of the utility model mixer and is mounted on the noise transducer taken on mixer including being located at taking on waste yeast discharge tube.The monitoring device and monitoring system of the utility model realize brewery's waste beer yeast slurry emission control automation, improve production efficiency instead of manual control；Meanwhile the raising of accuracy is automatically controlled, reduce wine damage, namely reduce quantity of wastewater effluent, reduces cost of material and sewage treatment expense, saved the energy, improved Business Economic Benefit.

Description

Waste yeast exhausting control device, monitoring system in a kind of beer fermentation process

Technical field

The utility model relates to discharge useless ferment in a kind of beer processing and manufacturing field, especially a kind of pair of beer fermentation process Female monitoring device and monitoring system.

Background technique

Beer fermentation process be brewer's yeast under certain conditions, carried out using the fermentability substance in wheat juice The product of normal activities, metabolism is exactly desired product --- beer, completes production equipment used in this process and is known as Zymolysis Equipment.Domestic large and medium-sized beer producers, beer fermentation equipment almost all are sent out using ferment in the open tank at present Ferment production, shape are the outdoor conical bottom of cylinder, and production technology is: saccharification wort is pumped into fermentor and adds yeast, and wheat juice exists Under the action of yeast, biochemical reaction is carried out, generally it is divided into technique: preceding ferment (main fermentation) and two, rear ferment (Aging storage) Stage: preceding ferment and rear ferment complete a referred to as tank method in a tank；Preceding ferment and rear ferment are completed to be known as two tanks respectively in two tanks Method, this corresponding two tanks are referred to as preceding fermentation tank and rear fermentation tank；Regardless of which kind of production technology used, in beer fermentation mistake Cheng Zhong will carry out waste yeast discharge in time.

Beer fermentation is carried out using outdoor coned fermentation tank, it is general using the brewer's yeast for having coherency strong, in beer In fermentation production process, when the degree of fermentation reaches congealing point, the yeast in fermentation liquid is just condensed into cotton-shaped, falls to fermentor bottom Portion, yeast is in mud state shape at this time, therefore is commonly called as yeast paste, for the yeast paste not recycled, as usually said waste yeast. Since the time that yeast paste stores in fermentor is longer, more, the bad flavor object generated of yeast death " self-dissolving " Matter will be dissolved in beer, can destroy beer flavor, therefore hair will be discharged in the waste beer yeast slurry for being deposited in fermentor cone bottom in time Fermentation tank, in order to avoid influence beer quality.Current each large and medium-sized beer producers, although its production technology, waste yeast discharge the frequency It is variant, but be substantially by repeatedly discharging, reach and yeast autolysis bring beer flavor is avoided to endanger.

In waste beer yeast slurry discharge process, the waste beer yeast slurry amount of discharge, commonly referred to as wine damage (including be mixed into waste yeast discharge The fermentation liquid of discharge), waste beer yeast slurry passes through vent valves under fermentation hydrostatic pressure and the collective effect of waste yeast recovery pump suction It is discharged from fermentor cone bottom, the waste beer yeast slurry and/or fermentation liquid discharged, by yeast recovery pump, is uniformly recovered to yeast and returns It sells or sells in closed cans, or after processing, Fig. 1 is beer ferment in the open tank waste yeast exhaust system figure, including fermentation Tank 20 bores bottom vent valves 30, bores bottom visor 40 and yeast recovery pump 50.

In Producing Process of Beer Fermentation, fermenter base is the yeast paste in mud state shape, is fermentation liquid above yeast paste, Wherein volume shared by waste beer yeast slurry is compared with the volume of fermentation liquid, proportion very little, the static pressure generated in tank, to useless ferment The influence that busbar puts generation is negligible；Since the viscosity of fermenter base yeast paste is much larger than the viscosity of top fermentation liquid, in valve The timing of door aperture and fermentation liquid height (fluid pressure), waste beer yeast slurry and fermentation liquid pass through the flow difference of vent valves respectively It is very big, thus every time the discharge of manual control waste beer yeast slurry when, usually the aperture control of vent valves less than 60%, to make The flow that waste beer yeast slurry is discharged by vent valves is deposited less than or equal to waste beer yeast slurry in tank to the flow of cone bottom discharge outlet, tool The size of body aperture is related with the volume of fermentor, production technology, fermentation time.

Currently, the beer producers of Beer Brewage are carried out using ferment in the open tank, although its fermenter volume, pipeline are matched Set, concrete technology it is variant, such as waste yeast vent valves and/or pipeline viewing mirror, some is mounted on cone dolly straight tube road, has It being mounted in horizontal pipeline, emissions operation is also had any different, but for most factories using the production of this technique, Discharge principle, which is substantially, to be communicated.

Due to a determining fermentor, volume and the fermentation liquid measure that is pumped into of saccharification be it is fixed, arranged according to waste yeast Put technique requirement, every time discharge when, not only will the waste beer yeast slurry for being deposited in fermenter base drained as far as possible, guarantee product quality, It to reduce the fermentation liquid measure for being mixed into discharge to the greatest extent simultaneously, i.e. reduction wine damage, reduce production cost.

Production technology without residual old recycling is discharged for waste beer yeast slurry, waste beer yeast slurry discharges work, is directly related to The product quality and wine of beer fermentation are damaged, and the importance of work is self-evident, many beer producers, to reduce people to the greatest extent For the influence of factor, guarantee the stabilization of product quality and reduce wine damage, discharges personnel by the way that full-time waste yeast is arranged, complete useless ferment Busbar puts work.

Since there are no mature beer fermentation waste yeasts to discharge automatic control equipment currently on the market, therefore beer is raw at present The discharge work of enterprise's waste yeast is produced to be substantially by manual operation control completion.

Here is a beer producers, the example-beer required in relation to fermentation waste yeast emissions operation regulation control Waste yeast emissions operation regulation of fermenting control requires:

1, into after tank canful, by the time interval of technique requirement, the waste yeast settled in fermentor is discharged in wheat juice in time；

2, each waste yeast discharge when, first connect waste yeast discharge pipe, by fermentor cone bottom valve open about three/ One, emissions operation is slow, interruption carries out；

3, every time discharge terminal point determining standard: from visor from waste yeast obviously it is thinning until.

Manual operation control method: yeast discharge when, discharge personnel by be mounted on fermentor bore bottom pipeline on glass Visor, by soon, estimation discharge tube in waste beer yeast slurry dilute consistency, old friend's work waste yeast emissions operation, is according to warp It tests, by a certain range, reaching when waste yeast is discharged, reducing hair to the greatest extent the aperture control of waste beer yeast slurry vent valves Zymotic fluid is mixed into discharge, to reach wine damage and working efficiency is taken into account, operator seen after discharge starts by live visor It examines, and according to the micro-judgment of oneself, the work for being repeated continuously closing valve, waiting certain time, valve opening door again, until this Waste beer yeast slurry discharge is completed.

After waste yeast emissions operation starts, what is be first discharged is to be deposited in the waste yeast that fermenter base is in mud state shape, such as Fruit vent valves aperture is excessive, and since the viscosity differences of waste beer yeast slurry and fermentation liquid are big, i.e., fermenter base waste beer yeast slurry deposits Flow to cone bottom discharge outlet is small, therefore often resulting in waste beer yeast slurry does not have drained, and discharge is exactly fermentation liquid, at this time will be in time Vent valves are closed, are waited for a period of time, are slowly flowed at fermentor cone bottom discharge outlet to make to bore bottom waste beer yeast slurry, so as to The waste beer yeast slurry consistency for guaranteeing discharge, otherwise just will increase wine damage if waste yeast does not have drained just will affect product quality； If valve opening is too small, the waste yeast drain time that will result in mud state shape increases, or even is difficult to the waste beer yeast slurry of mud state shape Discharge reduces production efficiency.

In beer fermentation process, since there are the control errors such as inoculum of dry yeast, fermentation temperature, fermentation pressure, these mistakes Difference influences whether the breeding of yeast in tank, sedimentation situation, that is, is deposited in the waste beer yeast slurry consistency of fermenter base, and fermentor Bottom wall layers are also variant to tank axial centre, its consistency of yeast paste bottom to upper layer, therefore waste beer yeast slurry is certain by aperture Vent valves discharge when, the flow of yeast paste is variation, and this uncertainty causes same work, different operators Member can be by visor, according to oneself observation result and experience, to the discharge stream in the quantity of the waste beer yeast slurry of discharge, pipeline The fermentation liquid measure being mixed in amount and waste yeast discharge, makes the operation judges of oneself, controls valve site, and this operation control is poor Not, it causes artificially to control error, directly influences the quality of beer product and the stability of wine damage.

Utility model content

The utility model provides a kind of reduction wine damage, and stabilized product quality improves the beer fermentation process of production efficiency Middle waste yeast exhausting control device and monitoring system.

It realizes waste yeast exhausting control device in the beer fermentation process of one of the utility model aim, including is located at useless ferment Taking on female discharge tube and is mounted on the noise transducer taken on mixer at mixer.

The noise transducer includes microphone, sensor noise, sound transducer, Sound intensity probe.

Described take in mixer takes sound chamber equipped with closed, and the probe insertion of the noise transducer takes in sound chamber.

It is described take sound chamber include sectional area it is larger be connected for the transaudient room of collection conduit sound and with transaudient room cut Area is smaller for amplifying the amplification tone chamber of sound wave, and the probe insertion of the noise transducer is amplified in tone chamber.

The transaudient interior is provided with acoustic wave filter diaphragm.For filtering the sound wave of fixed frequency wave band, increases noise and pass Measurement accuracy of the sensor to specific band sound wave.

Be provided with the closed mixer that takes for taking sound chamber, it is described take mixer include the pedestal set gradually, intermediate and Gland, the pedestal are fixed on pipeline, and the intermediate is fixed on the base, and the gland is fixed on intermediate；It is described Sound chamber is taken to be located in pedestal and intermediate, one end of the noise transducer, which is located at, to be taken in sound chamber, and other end stretches out pressure Lid is outer.

Between the pedestal and intermediate, noise transducer and takes and be respectively equipped with sealing ring between sound chamber and gland.

When the pipeline is round tube, it is equipped with U-shaped fixing clasp on the outside of pipeline, the one side of the pedestal and tube contacts is circle Cambered surface, the arc surface and round tube are concentric, and the arc surface two sides are equipped with protrusion, and the protrusion is separately fixed at U-shaped fixing card The both ends of ring, thus by pedestal fixed -piping.

When the pipeline lateral surface is plane, the side of pedestal is plane and tube contacts,

Pedestal is directly welded on pipeline and/or is fixed by screws on pipeline；

Or the both ends of plane are equipped with protrusion, are equipped with fixed plate with the other side of the pipeline of base contacts, the protrusion is logical It crosses screw to fix with fixed plate, so that pedestal is fixed on pipeline.

The monitoring device further includes one and listens clave, described to listen in clave insertion tube road, described that clave is listened to be welded on pipe On road, or it is fixed on pipeline by fixed device, it is described to take mixer to be fixed on to listen on clave.

It is described to listen clave for solid hopkinson bar, it is described that clave is listened to be equipped with another U-shaped fixing clasp, the pedestal for taking mixer Side is arc surface with the one side for listening clave to contact, and the arc surface and listens clave concentric, which is equipped with another protrusion, Another protrusion is fixed on the both ends of another U-shaped fixing clasp, so that mixer fixation will be taken to listen on clave.

It is described to listen clave for hollow stem closed at one end, it listens the closed end of clave to be inserted into pipeline, listens the open end of clave The fixed pedestal for taking mixer, and the cavity of clave is listened to take sound chamber to communicate with take mixer.

Realize waste yeast exhausting control system in two beer fermentation process of the utility model aim, including monitoring device And controller, the noise transducer are connected with controller, the controller is connected with waste yeast vent valves.

The controller is also connected with the ambient noise sensor of noise survey.

The controller is also connected with alarm.

A kind of beneficial effect of waste yeast exhausting control device and monitoring system in the beer fermentation process of the utility model Fruit is as follows:

1) it improves production efficiency: instead of manual control, realizing brewery's waste beer yeast slurry emission control automation, improve Production efficiency；

2) production cost is reduced, it is energy saving: to automatically control the raising of accuracy, reduce wine damage, namely reduce dirty Water discharge amount reduces cost of material and sewage treatment expense, improves Business Economic Benefit；

3) reduce artificial control error, ensure that the quality of product and the stability of product quality.

4) the degree of automation for improving process of factory production control, the automation control appliance of forward and backward production process It connects, improves the degree of automation of process of factory production control.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of waste yeast exhaust system in existing beer fermentation process.

Fig. 2 is the structural representation of waste yeast exhausting control Installation practice one in the beer fermentation process of the utility model Figure.

Fig. 3 is the A-A cross-sectional view of Fig. 2.

Fig. 4 is waste yeast exhausting control Installation practice two, three, four, five in the beer fermentation process of the utility model Structural schematic diagram.

Fig. 5 is the A-A cross-sectional view of Fig. 4.

Fig. 6 is the structural representation of waste yeast exhausting control Installation practice six in the beer fermentation process of the utility model Figure.

Fig. 7 is the A-A cross-sectional view of Fig. 6.

Fig. 8 is the structural representation of waste yeast exhausting control Installation practice seven in the beer fermentation process of the utility model Figure.

Fig. 9 is the A-A cross-sectional view of Fig. 8.

Figure 10 is the structural representation of waste yeast exhausting control Installation practice eight in the beer fermentation process of the utility model Figure.

Figure 11 is the A-A cross-sectional view of Figure 10.

Figure 12 is the structural representation of waste yeast exhausting control Installation practice nine in the beer fermentation process of the utility model Figure.

Figure 13 is the A-A cross-sectional view of Figure 12.

Figure 14 is the structure of waste yeast exhausting control Installation practice ten, 11 in the beer fermentation process of the utility model Schematic diagram.

Figure 15 is that the structure of waste yeast exhausting control Installation practice 12 in the beer fermentation process of the utility model is shown It is intended to.

Figure 16 is the schematic diagram of waste yeast exhausting control system embodiment one in the beer fermentation process of the utility model.

Figure 17 is the schematic diagram of waste yeast exhausting control system embodiment two in the beer fermentation process of the utility model.

Figure 18 is the schematic diagram of waste yeast exhausting control system embodiment three in the beer fermentation process of the utility model.

Figure 19 is the relation schematic diagram of sound pressure level in fluids within pipes composed structure and pipeline.

Specific embodiment

The embodiment of waste yeast exhausting control device is as follows in a kind of beer fermentation process of the utility model:

Embodiment 1

As shown in Figure 2,3, waste yeast exhausting control device in the beer fermentation process of the present embodiment, including it is located at waste yeast On discharge tube 1 take mixer and positioned at the noise transducer 11 taken on mixer, the probe of the noise transducer 11 is solid It is scheduled on and takes on mixer.

Embodiment 2

As shown in Figure 4,5, waste yeast exhausting control device in the beer fermentation process of the present embodiment, including it is located at waste yeast On discharge tube 1 take mixer and positioned at the noise transducer 11 taken on mixer, it is described take be equipped in mixer it is closed Sound chamber 3 is taken, the probe insertion of the noise transducer 11 takes in sound chamber 3.

Embodiment 3

As shown in Figure 4,5, in the beer fermentation process of the present embodiment waste yeast exhausting control device and embodiment 1 it is basic Structure and function is identical, unlike: it is described that sound chamber 3 is taken to include the larger transaudient room 31 for collection conduit sound of sectional area The sectional area being connected with transaudient room 31 is smaller for amplifying the amplification tone chamber 32 of sound wave, and the probe of the noise transducer 11 is inserted Enter to amplify in tone chamber 32.

Embodiment 4

As shown in Figure 4,5, in the beer fermentation process of the present embodiment waste yeast exhausting control device and embodiment 1 it is basic Structure and function is identical, unlike: described to take mixer include the pedestal 2, intermediate 10 and gland 12 set gradually, described Pedestal 2 is fixed on pipeline 1, and the intermediate 10 is fixed on pedestal 2, and the gland 12 is fixed on intermediate 10；It is described Sound chamber 3 is taken to be located in pedestal 2 and intermediate 10, one end of the noise transducer 11, which is located at, to be taken in sound chamber 3, and in addition one End is stretched out outside gland 12.

It is equipped with sealing ring 8 between the pedestal 2 and intermediate 10, the probe of noise transducer 11 and takes between sound chamber 3 Sealing ring 6 is equipped with equipped with another sealing ring 7, noise transducer 11 and between intermediate 10 and gland 12.

Embodiment 5

As shown in Figure 4,5, in the beer fermentation process of the present embodiment waste yeast exhausting control device and embodiment 1 it is basic Structure and function is identical, unlike: the pipeline 1 is round tube, and pipeline 1 is equipped with U shape fixing clasp 4, the pedestal 2 with The one side that pipeline 1 contacts is arc surface, and with one heart, arc surface two sides are equipped with protrusion and are fixed on U-shaped fixing clasp for circular arc and pipeline 1 4 both ends, thus by 2 fixed -piping 1 of pedestal.

Embodiment 6

As shown in Figure 6,7, waste yeast exhausting control device and Examples 1 to 4 in the beer fermentation process of the present embodiment Basic structure is identical with function, unlike: acoustic wave filter diaphragm 5 is provided in the transaudient room 3.

The acoustic wave filter diaphragm 5 is between pedestal 2 and intermediate 10, for filtering the sound wave of fixed frequency wave band, Increase the measurement accuracy of noise transducer.

Embodiment 7

As shown in Figure 8,9, waste yeast exhausting control device and Examples 1 to 5 in the beer fermentation process of the present embodiment Basic structure is identical with function, unlike: when 1 lateral surface of pipeline is plane, the side of pedestal 2 is plane and pipeline 1 Contact, pedestal 2 are directly welded on pipeline 1.

Embodiment 8

As shown in Figure 10,11, waste yeast exhausting control device and Examples 1 to 5 in the beer fermentation process of the present embodiment Basic structure it is identical with function, unlike: 2 two sides of pedestal are welded on pipeline 1；In addition two sides are equipped with protrusion, and pass through Screw is fixed on pipeline 1.

Embodiment 9

As shown in Figure 12,13, waste yeast exhausting control device and Examples 1 to 5 in the beer fermentation process of the present embodiment Basic structure it is identical with function, unlike: the both ends for the plane that pedestal 2 is contacted with pipeline 1 are connect with pedestal 2 equipped with protrusion The other side of the pipeline 1 of touching is equipped with fixed plate 15, and the protrusion is fixed by screw 16 and fixed plate 15, so that pedestal 2 be consolidated It is scheduled on pipeline 1.

Embodiment 10

As shown in figure 14, in the beer fermentation process of the present embodiment waste yeast exhausting control device and Examples 1 to 5 base This structure and function is identical, unlike: the monitoring device further includes one and listens clave 14, described that clave 14 is listened to be inserted into pipeline It is described to take mixer to be fixed on to listen on clave 14 in 1.

Embodiment 11

As shown in figure 14, in the beer fermentation process of the present embodiment waste yeast exhausting control device and embodiment 9 it is basic Structure and function is identical, unlike: described to listen clave 14 for solid hopkinson bar, outer wall is circle, described that clave 14 is listened to be equipped with U-shaped Fixing clasp 4, the pedestal 2 for taking mixer are arc surface with the one side for listening clave 14 to contact, and circular arc and listen clave concentric, Arc surface two sides are equipped with protrusion and are fixed on the both ends of fixed U shape snap ring 4, so that mixer fixation will be taken to listen on clave 14.It is described The insertion of clave 14 is listened to be welded on pipeline 1.

Embodiment 12

As shown in figure 15, in the beer fermentation process of the present embodiment waste yeast exhausting control device and embodiment 9 it is basic Structure and function is identical, unlike: it is described to listen clave 14 for hollow stem closed at one end, listen the closed end insertion tube of clave 14 In road 1, the fixed pedestal 2 for taking mixer in the open end of clave 14 is listened, and the cavity of clave 14 is listened to take sound with take mixer Chamber 3 communicates.It is described that clave 14 is listened to be fixed on pipeline 1 by fixed device 13.

The embodiment of waste yeast exhausting control system is as follows in a kind of beer fermentation process of the utility model:

Embodiment 1

As shown in figure 16, waste yeast exhausting control system in the beer fermentation process of the utility model, including monitoring device With controller 23, the noise transducer 11 is connected with controller 23, the controller 23 and 21 phase of waste yeast vent valves Even, monitoring device is located at the downstream of waste yeast vent valves 21.

The controller 23 is also connected with alarm.

Embodiment 2

As shown in figure 17, waste yeast exhausting control system and embodiment 1 are basic in the beer fermentation process of the utility model Structure and function is identical, unlike: the controller 23 is also connected with the ambient noise sensor 24 of noise survey.

Embodiment 3

As shown in figure 18, waste yeast exhausting control system and embodiment 2 are basic in the beer fermentation process of the utility model Structure and function is identical, unlike: the controller 23 connects two waste yeast vent valves 21 and 25, and monitoring device is located at The downstream of waste yeast vent valves 21.

Waste yeast exhausting control method in the beer fermentation process of the utility model, comprising:

Step (1): in the case where waste yeast discharges operating condition, fermentation liquid or water is full of in discharge tube, multi collect takes sound The measured value for the sensor noise installed on device calculates sound pressure level average value, and the sound pressure level average value that measurement obtains is added Last Offset amount, the setting value as control sound pressure level；After the control sound pressure level setting value and valve that controller is arranged are closed Waiting time, and vent valves maximum functional aperture is set；

Step (2): after controller is connected to work operation signal, controller is taking the noise transducer installed on mixer Measured value is compared with setting value carries out operation, and when measured value≤setting value, controller output signal reduces control waste yeast row It puts the aperture of valve and/or closes valve；When measured value > setting value, controller output signal increases waste yeast vent valves Aperture and/or open valve；It is automatically performed waste yeast discharge consistency control；

The monitoring method further includes step (3): closing valve signal when controller exports, starts valve shut-in time meter When, when timing reaches the waiting time of setting, controller output signal controls waste yeast vent valves and opens, and repeats step (2).

In the case where waste yeast discharges operating condition, fermentation liquid or water is full of in discharge tube, multi collect takes pacifies on mixer The measured value of the sensor noise of dress finds out the average value of sound pressure level, and the sound pressure level average value that measurement obtains is set as minimum Determine reference value；In actual use, minimum setting reference value is added an offset, as setting value；

Waiting time, valve maximum functional aperture after the setting value, control sound pressure level, valve closing of controller are set； After controller is connected to work operation signal, controller is taking the measured value for the noise transducer installed on mixer and setting value phase Compare, when measured value≤setting value, controller output signal closes control waste yeast vent valves, and valve starts to count after closing When, after timing to waiting time, then automatically open valve；When measured value > setting value, controller output signal opens useless ferment Female vent valves are automatically performed the control of waste yeast discharge consistency.

Working principle of the utility model is: in waste beer yeast slurry discharge, the waste beer yeast slurry being discharged out of fermentor, due to viscous Degree is big, and the flow velocity in pipeline is slow, and the bigger flow velocity of consistency is slower, it is difficult to be full of discharge tube, i.e., the fluid in pipeline is It is made of gas phase gas and waste beer yeast slurry and/or fermentation liquid, i.e., discharge tube is in non-full pipe discharge state, unit length Fluid line, quality are less than quality of the discharge tube full of fermentation liquid when.After waste beer yeast slurry racks up, the small fermentation of viscosity Liquid can quickly fill with pipeline, and the gas phase gas in discharge line, the quality in pipeline is maximum at this time.

Waste yeast discharge tube is using vent valves as boundary, and the lateral pressure for connecting fermentor is high, i.e. high-pressure side, connection discharge The side of public pipeline is low-pressure side, when waste yeast discharges, waste beer yeast slurry and/or fermentation liquid from the high-pressure side of vent valves, by Extruding is gone out from valve core opening to low-pressure side, and the gas in spool, inner wall of the pipe and/or pipeline is impacted, and causes vibration, is produced Raw sound.

It is found by measurement, as shown in figure 19, abscissa is fluids within pipes ingredient composition, and ordinate is noise in pipeline Sound-pressure-level measurement value, the sound pressure level value that numerical value A is measured when being pipe full fermentation liquid；Sound pressure level when numerical value C is blank pipe Value, i.e., the noise of air sound pressure level in pipeline, the value are influenced by outside noise size；Numerical value B are as follows: waste yeast is full of in pipeline When, waste yeast discharges the sound pressure level value measured.

Due to the waste beer yeast slurry and/or fermentation liquid being expelled in pipeline, to the damping action of sound wave, that is, the energy of vibration is absorbed Amount, makes vibration weakening, as what waste beer yeast slurry and/or fermentation liquid were measured in pipeline increases, damping is increased with it, it may be assumed that in pipeline The amount of waste beer yeast slurry and/or fermentation liquid is more, and quality is bigger, damps bigger, absorbs the energy of vibration with regard to big, i.e., vibration weakening, Frequencies go lower, as shown in the table:

According to solid-borne sound transmission principle, setting takes mixer on waste yeast discharge tube, using taking mixer to pick up useless ferment Busbar puts the sound of generation, and noise transducer is mounted directly on taking mixer；Mixer and noise transducer is taken to pop one's head in it Between the biggish airtight chamber of area can be set, utilize noise transducer sense the indoor acoustic vibration of closed chamber.Also One lesser cavity of area is set, and since the cavity of connection noise transducer probe is tiny, Gas Vibration amplitude just compares front end Greatly, pipe vibration is thus exaggerated by taking mixer to propagate the acoustic vibration of coming, and increases the measured value of sound pressure level, noise biography Sensor signal connects controller, carries out data processing and inversion, controller to the frequency spectrum and/or sound intensity level value measured by controller According to data processing and inversion as a result, judging dilute consistency of waste beer yeast slurry, output corresponding signal controls waste beer yeast slurry vent valves Aperture and/or switch time, realize waste beer yeast slurry discharge consistency automatic control, realize beer fermentation tank waste yeast discharge Working automation.

Yeast discharge pipe is demarcated: in the case where waste yeast discharges operating condition, be full of in discharge tube fermentation liquid or Water obtains sound pressure level average value at this time, minimum setting reference value of this value as control setting value, in actual use, this Value adds certain offset, as setting value.

The setting value of controller is arranged: control sound pressure level closes valve waiting time, valve maximum functional aperture；Controller connects To after work operation signal, when measured value≤setting value, controller exports corresponding signal and reduces control waste yeast vent valves Aperture and/or close valve, valve close after start timing, after timing to waiting time, then automatically open valve；Work as measurement When value > setting value, controller output signal increases the aperture of waste yeast vent valves and/or opens valve, is automatically performed useless ferment Busbar puts the control of consistency.Controller system has two kinds to the control mode of valve: analog output controls；Analog output (valve opening is a definite value)+output switch parameter control；Wherein in analog output (valve opening is a definite value)+switching value Output control, control system are controlled using position formula, first set the maximum opening of automatic valve, after discharge starts, analog quantity is defeated It keeps the aperture of setting constant out, only exports digital output modul, when measured value > setting value, valve opening discharge；Measured value≤set Definite value closes valve, and the shut-in time is the pass valve waiting time of setting, so repeats, is automatically performed waste yeast emission control.Control Device processed is provided with external given terminal, as external control terminal；

Such as: utilizing fluid automatic identification technology, that is, the camera being mounted on the outside of pipeline viewing mirror, the waste yeast discharge identified Complete signal, the stop signal as controller.

Since the viscosity of waste beer yeast slurry is big, in waste yeast discharge, waste yeast is bonded in inner wall of the pipe, including pipeline sometimes On visor inner wall, using fluid automatic identification technology, that is, when the camera measurement being mounted on the outside of pipeline viewing mirror, waste yeast can be generated The big spurious signal of consistency, but this equipment identifies that waste yeast consistency sequences signal, is true signal, can use this signal As the outer Setting signal that waste yeast discharge work terminates, increase the control precision of waste yeast discharge, when controller is connected to fluid What automatic identification equipment issued sequences signal, and as the stop signal of controller work, controller stops working, and closes valve, It is automatically performed waste yeast discharge work.

Controller is equipped with outer given automatic/hand switch terminal, when terminal movement, automatically controls shape for row's yeast State, vent valves are controlled by controller, otherwise are manual mode, and the control of vent valves is directly controlled by outside.

Environmental noise measurement noise transducer:

After increasing environmental noise measurement noise transducer, to extraneous environmental noise to noise measurement in pipeline, carry out real When compensate, improve duct noise measurement accuracy, reduce outside noise interference.

Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this Novel range is defined, under the premise of not departing from the spirit of the design of the utility model, this field ordinary engineering and technical personnel pair The various changes and improvements that technical solutions of the utility model are made should all fall into the guarantor that claims of the utility model determine It protects in range.

Claims (10)

1. waste yeast exhausting control device in a kind of beer fermentation process, it is characterised in that: including being located at waste yeast discharge tube On take and mixer and be mounted on the noise transducer taken on mixer；It is described to take mixer for picking up waste yeast discharge tube The sound that interior waste yeast discharge generates；The noise transducer is for monitoring the sound for taking mixer to be picked up.

2. monitoring device according to claim 1, it is characterised in that: described take in mixer takes sound chamber equipped with closed The probe insertion of room, the noise transducer takes in sound chamber.

3. monitoring device according to claim 2, it is characterised in that: described to take sound chamber include that sectional area is larger for receiving The transaudient room of collector road sound and the sectional area being connected with transaudient room are smaller for amplifying the amplification tone chamber of sound wave, and the noise passes In the probe insertion amplification tone chamber of sensor.

4. monitoring device according to claim 3, it is characterised in that: the transaudient interior is provided with acoustic wave filter diaphragm.

5. according to any monitoring device of claim 2~4, it is characterised in that: described to take mixer including setting gradually Pedestal, intermediate and gland, the pedestal is fixed on pipeline, and the intermediate is fixed on the base, and the gland is fixed On intermediate；Described that sound chamber is taken to be located in pedestal and intermediate, one end of the noise transducer, which is located at, to be taken in sound chamber, Other end is stretched out outside gland；Between the pedestal and intermediate, noise transducer and taking is set respectively between sound chamber and gland There is sealing ring.

6. monitoring device according to claim 5, it is characterised in that: when the pipeline is round tube, U-shaped is equipped on the outside of pipeline The one side of fixing clasp, the pedestal and tube contacts is arc surface, and the arc surface and round tube are concentric, the arc surface two sides Equipped with protrusion, the protrusion is separately fixed at the both ends of U-shaped fixing clasp, thus by pedestal fixed -piping.

7. monitoring device according to claim 5, it is characterised in that: when the pipeline lateral surface is plane, the one of pedestal Side is plane and tube contacts, and pedestal is directly welded on pipeline and/or is fixed by screws on pipeline；

Or the both ends of plane are equipped with protrusion, are equipped with fixed plate with the other side of the pipeline of base contacts, the protrusion passes through spiral shell Nail is fixed with fixed plate, so that pedestal is fixed on pipeline.

8. monitoring device according to claim 1, it is characterised in that: the monitoring device further includes one and listens clave, institute It states and listens in clave insertion tube road, it is described that clave is listened to be welded on pipeline, or be fixed on pipeline by fixed device, it is described to take Mixer, which is fixed on, to be listened on clave.

9. waste yeast exhausting control system in a kind of beer fermentation process, it is characterised in that: including described in claim 1~8 Monitoring device and controller, noise transducer are connected with controller, and the controller is connected with waste yeast vent valves.

10. monitoring system according to claim 9, it is characterised in that: the controller is also connected with noise survey Ambient noise sensor；The controller is also connected with alarm.