CN112746004A - Alcohol content online detection segmented liquor picking equipment based on density - Google Patents

Abstract

The invention discloses a segmented wine-picking device for on-line detection of alcohol content based on density. The equipment includes wine receiving device, exhaust device, wine flow pipeline, wine pump, steady flow device, shock absorption device, density sensor, temperature sensor, wine separation container, wine picking valve, wine discharge valve, control system, wine discharge pipeline , wine picking pipeline, steady flow pipeline, alcohol measurement pipeline, return pipeline and return valve. According to the corresponding relationship between the density, temperature and alcohol degree of liquor, the present invention measures the temperature and density of the original wine in real time through a density sensor and a temperature sensor, and converts the density and temperature into a corresponding alcohol degree value through a control system, eliminating the effect of temperature on alcohol. Then, according to the alcohol content, switch the corresponding valve to pick wine to achieve segmented wine picking. The invention breaks the traditional method of artificially looking at flowers to judge the alcohol content for wine picking, improves the automation degree of the brewing process, reduces human errors, and improves the precision of wine picking.

Description

A segmented wine picking device for online detection of alcohol content based on density

technical field

The invention belongs to the technical field of winemaking, in particular to a segmented wine-picking device for on-line detection of alcohol content based on density.

Background technique

Liquor distillation is a unique technology in Chinese liquor brewing. Its solid-state distillation method has been well inherited due to its perfect aroma retention characteristics, and has been continuously improved and updated in the development of history, but its wine picking method has always been Depends on manual operation. At present, wine brewing is highly dependent on traditional brewing technology, and it is urgent to solve the problem of deep integration of automation technology and technology to ensure the inheritance of traditional technology in the whole process of wine brewing.

At present, the traditional way of picking wine in the liquor industry is the method of "seeing flowers and picking wine". The operation method of watching flowers and picking wine is to judge the alcohol content of the flowing wine at this time by observing the size, shape and duration of the hops after the liquor flows out by the wine pickers using the container to continuously pick up the wine, and distinguish the wine head, wine body and wine. last three paragraphs. This traditional way of picking wine has many disadvantages:

1. Seeing flowers and picking wine requires wine-picking workers to have long-term wine-picking experience. Each operator has different evaluation standards and various evaluation methods. There is a big gap, and it will be affected by the operator's own physical condition. Moreover, the inheritance method relies entirely on the master to lead the apprentice, lacking theoretical standards, difficulty in inheritance, and shortage of talents.

2. Hops can be divided into five types: Daqinghua, Xiaoqinghua, Yunhua, Erhua, and Youhua. The production of hops is affected by temperature and pressure, and the dissipation speed of hops will vary with the alcohol content. Therefore, it is easily affected by the surrounding environmental factors and the detection speed of the operator. The efficiency and accuracy of wine picking are not high, and human errors are inevitable. How to reduce the influence of artificial factors and improve the efficiency of wine picking has become a hot research topic.

To sum up, the current traditional method of picking wine is manual operation, which cannot guarantee the quality of the picked wine. The production cycle is long, the efficiency is low, and it is highly dependent on the individual wine pickers. The document with the application number of 201110089637.9 discloses a wine picking method for Luzhou-flavor liquor. The method realizes segmented wine picking by controlling the water content and gas phase temperature and observing the size of the hops. But in essence, the traditional method of picking wine by looking at flowers and picking wine is still used, and there are still human errors and environmental factors that affect the alcohol content. The document with the application number of 201910418319.9 discloses a method for picking liquor from liquor based on near-infrared spectroscopy. The method collects near-infrared spectral data of liquor, establishes a near-infrared model, and determines the alcohol content of liquor, so as to pick wine in sections. The method of using near-infrared spectroscopy to measure alcohol content has problems such as high cost and complex modeling. At the same time, temperature has a great influence on the alcohol content of liquor, and it does not consider the influence of temperature, so it also has the defect of large error.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a segmented wine-picking device for on-line detection of alcohol content based on density.

The technical solution of the present invention to solve the technical problem is to provide a segmented wine picking device for on-line detection of alcohol content based on density, which is characterized in that the device includes a wine receiving device, an exhaust device, a wine flowing pipe, and a wine pump. , Steady flow device, shock absorption device, density sensor, temperature sensor, wine dispenser, wine picking valve, wine discharge valve 1, control system, wine discharge pipeline 1, wine picking pipeline, wine flow pipeline 2, steady flow pipeline, alcohol Degree measurement pipe, wine flow pipe three, wine discharge valve two, wine discharge pipe two, return pipe, return valve and wine flow pipe four;

The inlet of the first wine flow pipe is connected with the end of the wine receiving device, and the outlet is connected with the inlet of the first wine drain pipe and one end of the second wine flow pipe; Wine discharge valve 1, the outlet of wine discharge pipe 1 is used to discharge residual liquid;

The other end of the wine flow pipeline 2 is connected with the liquid inlet of the wine pump; one end of the wine flow pipeline 4 is connected with the liquid outlet of the wine pump, and the other end is respectively connected with one end of the steady flow pipeline and one end of the wine discharge pipeline 2; the wine discharge pipeline The second is used to discharge the residual liquid, which is provided with a wine discharge valve II; the steady flow pipeline is provided with a steady flow device; the other end of the steady flow pipe is respectively connected with the inlet end of the alcohol content measurement pipe and one end of the return pipe; return flow The other end of the pipe is connected with the middle of the second wine discharge pipe, and the communication position is located in front of the second wine discharge valve according to the flow direction of the liquid; a return valve is arranged on the return pipe; ; The alcohol content measuring pipe is arranged vertically, and the damping device and the density sensor are arranged on it in sequence according to the liquid flow direction; the temperature sensor is arranged on the alcohol content measuring pipe and is close to the density sensor; Container; the end of the wine-picking container is connected to one end of several wine-picking pipes, and the other end of the wine-picking pipe is connected to a wine storage barrel; each wine-picking pipe is provided with a wine-picking valve;

The control system is respectively connected with the wine pump, the density sensor, the temperature sensor, the wine picking valve, the first wine discharge valve, the second wine discharge valve and the return valve to realize control.

Compared with the prior art, the beneficial effects of the present invention are:

1. The present invention measures the temperature and density of the original wine in real time through a density sensor and a temperature sensor according to the corresponding relationship between the density, temperature and alcohol degree of liquor, and converts the density and temperature into corresponding alcohol degree values through a control system to eliminate the temperature. The influence on the alcohol content; and then switch the corresponding valve to pick wine according to the alcohol level, so as to achieve segmented wine picking. The invention provides a theoretical basis for scientific wine picking, breaks the traditional method of manually looking at flowers to judge the alcohol content for wine picking, improves the automation degree of the winemaking process, reduces the use of manpower and human errors, and improves the precision of wine picking.

2. The present invention uses a steady flow device to control the flow rate of the liquor, because the wine pump may have the problem of excessive transportation in the process of transporting the liquor, and the flow rate of the liquor is unstable, the pressure is not stable, and the data of the density sensor changes frequently. Through the combination of the steady flow device and the shock absorption device, the flow of the liquor has a stable speed and pressure, so the density sensor has a stable and accurate measurement value, and provides an accurate input parameter for the subsequent alcohol content calculation.

3. The present invention adopts a funnel-shaped wine receiving device, which retains the original process of picking wine by looking at flowers. This structure allows the wine pickers to observe the shape and size of liquor hops at any time while automatically picking wine, so that the traditional wine-picking by looking at flowers can be improved. Combine with density wine picking to reduce wine picking errors.

4. The present invention adds a pipeline residual liquid discharge device. The discharge device is composed of a corresponding pipeline and a wine discharge valve. After the wine is picked, the wine discharge valve can be opened to discharge the residual liquid in the pipeline into the waste wine storage container. For other purposes, avoid mixing two consecutive retorts.

Description of drawings

1 is a schematic diagram of the overall structure of an embodiment of the present invention;

2 is a schematic diagram of the internal structure assembly of an embodiment of the present invention;

FIG. 3 is a schematic three-dimensional schematic diagram of pipeline arrangement according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of another perspective view of pipeline arrangement according to an embodiment of the present invention;

FIG. 5 is a three-dimensional schematic diagram of a wine picking implementation part according to an embodiment of the present invention.

In the figure: 1. Wine receiving device; 2. Exhaust device; 3. Wine flow pipeline 1; 4. Pressure sensor; 5. Wine pump; 6. Pulsation damper; 7. Back pressure valve; 8. Damping device; 9. Density sensor; 10. Temperature sensor; 11. Wine separation container; 12. Wine picking valve; 13. Equipment shell; 14. Wine discharging valve one; 15. Control system; 16. Wine discharging pipeline one; Wine pipeline; 18. Wine flow pipeline 2; 19. Steady flow pipeline; 20. Alcohol content measurement pipeline; 21. Wine flow pipeline 3; 22. Wine discharge valve 2; 23. Wine drainage pipeline 2; , return valve; 26, wine flow pipeline four;

12.1, wine picking valve one; 12.2, wine picking valve two; 12.3, wine picking valve three; 12.4, wine picking valve four;

15.1, PLC; 15.2, control button; 15.3, touch screen; 15.4, 24V power supply; 15.5, circuit breaker; 15.6, AC contactor;

17.1, wine picking pipeline one; 17.2, wine picking pipeline two; 17.3, wine picking pipeline three; 17.4, wine picking pipeline four.

Detailed ways

Specific embodiments of the present invention are given below. The specific embodiments are only used to further illustrate the present invention in detail, and do not limit the protection scope of the claims of the present application.

The present invention provides a segmented wine-picking device (referred to as the device) for on-line detection of alcohol content based on density. Wine pump 5, steady flow device, shock absorption device 8, density sensor 9, temperature sensor 10, wine separation container 11, wine picking valve 12, wine discharging valve 14, control system 15, wine discharging pipeline 16, wine picking pipeline 17. Wine flow pipe two 18, steady flow pipe 19, alcohol content measurement pipe 20, wine flow pipe three 21, wine discharge valve two 22, wine discharge pipe two 23, return pipe 24, return valve 25 and wine flow pipe four 26 ;

The inlet of described wine flowing pipeline one 3 is connected with the end of wine receiving device 1, and the outlet is connected with the inlet of wine draining pipeline one 16 and one end of wine flowing pipeline two 18 respectively through the tee; The direction is provided with an exhaust device 2 and a wine discharge valve one 14, and the outlet of the wine discharge pipe one 16 is used to discharge the residual waste wine in the equipment pipeline; the wine receiving device 1 is a funnel-shaped structure, and the condenser of the wine production equipment flows out. The original wine flows into the wine receiving device 1;

The other end of the wine flow pipeline two 18 is connected with the liquid inlet of the wine pump 5, and the pressure sensor 4 is arranged on the wine flow pipeline two 18; It is respectively connected with one end of the steady flow pipe 19 and one end of the second wine discharge pipe 23; the second wine discharge pipe 23 is used to discharge the waste wine remaining in the equipment pipeline, and is provided with a second wine discharge valve 22; A stabilizing device is provided; the other end of the stabilizing pipeline 19 is respectively connected with the inlet end of the alcohol content measuring pipeline 20 and one end of the return pipeline 24 through the tee; The communication position is located in front of the second wine discharge valve 22 according to the flow direction of the liquid; the return pipe 24 is provided with a return valve 25; the outlet end of the alcohol content measurement pipe 20 is connected with the inlet of the third wine flow pipe 21; the alcohol content measurement pipe 20 is vertical Arrangement, which is provided with a shock absorber 8 and a density sensor 9 in turn according to the liquid flow direction; the temperature sensor 10 is arranged on the alcohol content measuring pipe 20, close to the density sensor 9; 11; the end of the wine-picking container 11 is connected to one end of several wine-picking pipes 17, and the other end of the wine-picking pipe 17 is connected to a wine storage barrel; each wine-picking pipe 17 is provided with a wine-picking valve 12;

The control system 15 is respectively connected with the pressure sensor 4, the wine pump 5, the density sensor 9, the temperature sensor 10, the wine picking valve 12, the wine discharge valve 1 14, the wine discharge valve 2 22 and the return valve 25 to realize control.

Preferably, the exhaust device 2 is used to exhaust the air in the pipeline during the wine flow process, so as to improve the accuracy of density measurement, and an exhaust pipe or an exhaust hole can be used; when an exhaust pipe is used, the outlet of the exhaust pipe The position of the air port is higher than the position of the liquid inlet of the wine pump 5, which is conducive to the discharge of gas and prevents the liquid from flowing out, and its air outlet is provided with a mesh structure; The position of the liquid inlet is conducive to the discharge of gas while preventing the liquid from flowing out, and the exhaust hole is provided with a mesh structure.

Preferably, the pressure sensor 4 is used to detect the pressure of the original wine flowing through here; when the original wine pressure reaches a certain value, the wine pump 5 is turned on to avoid the pump caused by the opening of the wine pump 5 because the original wine has not yet flowed to the wine pump 5. Internal motor idling problem.

Preferably, the wine pump 5 is a diaphragm metering pump.

Preferably, the steady flow device is used to change the wine flowing out from the wine pump 5 into a steady flow state to improve the accuracy of density measurement, including a pulsation damper 6 and a back pressure valve 7; a pulsation damper 6 and a back pressure The valves 7 are sequentially arranged on the steady flow pipe 19 according to the liquid flow direction. The back pressure valve 7 is arranged horizontally on the steady flow conduit 19 ; the pulsation damper 6 is vertically arranged on the steady flow conduit 19 .

Preferably, the damping device 8 is arranged at the inlet end of the alcohol content measuring pipe 20 to reduce the influence of the wine pump 5 on the density sensor 9 due to the working vibration, and improve the accuracy of the density sensor 9 to measure the density.

Preferably, the shock absorbing device 8 adopts a food-grade flexible connection transparent pipe; the other end of the steady flow pipe 19 is respectively connected with one end of the food-grade flexible connection transparent pipe and one end of the return pipe 24 through a tee; the food-grade flexible connection is transparent The other end of the pipe is connected to the inlet end of the alcohol content measuring pipe 20 .

Preferably, the density sensor 9 is a differential pressure density sensor, which is divided into two measuring heads, and is connected to the alcohol content measuring pipe 20 through flanges at intervals;

Preferably, the temperature sensor 10 adopts a thermocouple temperature sensor, the number of which is at least one, and one of the temperature sensors 10 is close to the back of the measuring head located on the rear side of the density sensor 9 according to the liquid flow direction, and the raw wine temperature value is taken as The average value measured by the temperature sensor 10; when one temperature sensor 10 is used, according to the liquid flow direction, the temperature sensor 10 is close to one of the two measuring heads of the density sensor 9 (preferably, considering that the probe of the temperature sensor 10 may affect the to the liquid pressure, so it is placed close to the back of the measuring head of the density sensor 9, which is located on the rear side according to the liquid flow direction, so as not to affect the steady flow effect that has been achieved); when two temperature sensors 10 are used, the two temperature The sensors 10 are respectively close to the two measuring heads of the density sensor 9, and one of the temperature sensors 10 is close to the back of the measuring head of the density sensor 9 which is located on the rear side according to the liquid flow direction; when three temperature sensors 10 are used, two of them The temperature sensors 10 are in close contact with the two measuring heads of the density sensor 9 respectively, one of the temperature sensors 10 is in close contact with the back of the measuring head of the density sensor 9 which is located on the rear side according to the liquid flow direction, and the other temperature sensor 10 is located in the two measuring heads of the density sensor 9. At the midpoint of the temperature sensor 10 or the midpoint of the two measuring heads of the density sensor 9 .

Preferably, the wine picking valve 12 , the wine discharging valve 1 14 , the wine discharging valve 2 22 and the return valve 25 are all solenoid valves.

Preferably, the control system 15 includes a PLC 15.1, a control button 15.2, a touch screen 15.3, a 24V power supply 15.4, a circuit breaker 15.5, an AC contactor 15.6 and a relay 15.7; externally connected to the commercial power (220V voltage) through the AC contact The circuit breaker 15.6 and the circuit breaker 15.5 are converted into 24V voltage to supply power to the 24V power supply 15.4; Both the sensor 9 and the temperature sensor 10 are connected with the analog input port of PLC 15.1, and transmit analog signals to PLC15.1, the digital output port of PLC15.1 is connected with relay 15.7, and PLC15.1 is connected with touch screen 15.3 through a communication line; The relay 15.7 is respectively connected with the wine pump 5, the wine picking valve 12, the wine discharge valve 1 14, the wine discharge valve 2 22 and the return valve 25, and controls the opening of the wine pump 5 and each valve. All the above connection methods are wired connections.

The wine pump 5 , the pulsation damper 6 and the control system 15 are all located in the equipment housing 13 .

The working principle and workflow of the present invention are:

When the system starts to run, all the valves are in the closed state, the original wine flows into the wine flow pipe 2 18 through the wine flow pipe 1 3 through the wine receiving device 1, and the gas during the wine flow is discharged from the exhaust device 2 on the wine discharge pipe 1 16. When the pressure sensor 4 on the wine flow pipeline two 18 detects that the pressure value is greater than the preset value, the wine pump 5 is turned on with a delay of at least 5s, and the original wine delivered by the wine pump 5 passes through the flow wine pipeline four 26, the steady flow pipeline 19, and the shock absorption. The device 8 flows to the alcohol content measurement pipeline 20; the density sensor 9 collects the real-time density value ρ, and several temperature sensors 10 collect the corresponding quantity of real-time temperature values, and the real-time density value ρ and several real-time temperature values are transmitted to the control system 15;

The control system 15 calculates the average value of several real-time temperature values as the real-time real temperature value T, and the real-time density value ρ and the real-time real temperature value T are converted into the real-time alcohol content value q of the original wine to be tested by the alcohol content calculation model in the controller (input the corresponding data of temperature, density and alcohol degree into the MATLAB of the host computer for fitting, generate an alcohol degree calculation model whose independent variables are temperature and density, and the dependent variable is alcohol degree, and then input the alcohol degree calculation model into PLC15 .1); the control system 15 compares and judges the real-time alcohol content with the preset wine-picking alcohol range, and when the real-time alcohol value is within a certain preset wine-picking range, the control system 15 controls The corresponding wine-picking valve 12 at the wine-distributing container 11 is opened and other wine-picking valves 12 are closed, and the original wine is flowed to different wine storage barrels through different wine-picking pipes 17 to realize segmented wine-picking;

After the wine is picked, the control system 15 opens the wine discharge valve 1 14, the return valve 25 and the wine discharge valve 2 22, and the residual liquid (that is, waste wine) in the pipeline between the wine receiving device 1 and the liquid inlet of the wine pump 5 can be removed. The waste wine between the liquid outlet of the wine pump 5 and the back pressure valve 7 can flow out from the wine discharge pipe 2 23 through the wine discharge valve 2 22, and the back pressure valve 7 to The waste wine between the density sensors 9 can flow out from the second wine discharge pipe 23 from the return pipe 24 through the return valve 25 and the second wine discharge valve 22 to realize the discharge of residual liquid in the pipeline.

In this embodiment, wine picking is carried out in four stages, and wine picking valve 12 is divided into four, namely wine picking valve one 12.1, wine picking valve two 12.2, wine picking valve three 12.3 and wine picking valve four 12.4; The alcohol content range of the first stage wine is more than 76%, and it flows out from the wine picking pipeline 17.1 through the wine picking valve one 12.1; the alcohol content range of the second stage wine is 72% to 76%, and the wine picking valve two 12.2 from the wine picking pipe. The wine pipeline 2 17.2 flows out; the alcohol content of the third stage wine ranges from 48% to 72%, and flows out from the wine picking pipeline 3 17.3 through the wine picking valve 3 12.3; the fourth stage wine has an alcoholic content range of 0%. ~48% of the wine sips flow out from the wine-picking pipe 4.17.4 through the wine-picking valve 4.12.4.

When the wine picking pipe 17 is producing wine, the temperature of the wine flowing is 28-32°C, and the speed is 5-6kg/min;

The density value and temperature value and the converted alcohol content value collected by the PLC 15.1 of the control system 15 can be displayed in real time on the human-computer interaction interface of the touch screen 15.3. Both real-time data and historical data can be displayed online through the human-computer interaction interface of the touch screen 15.3.

The alcohol content calculation model is:

权重常量V₁＝-8.78009788，V₂＝-120.34663676，V₃＝-11.92250949，V₄＝5.36664326，V₅＝7.37168811，W11＝-0.35875759，W12＝0.13787137，W13＝0.33458189，W14＝-0.50523374，W15＝1.69823758，W21＝10.29658039，W22＝0.80742288，W23＝4.12574959，W24＝-11.19394148，W25＝-8.05011810；偏置常量b₁＝-11.35753556，b₂＝0.04014640，b₃＝-2.66309245，b₄＝9.68923738，b₅＝12.42979910，b＝105.67968188。in,

权重常量V ₁ ＝-8.78009788，V ₂ ＝-120.34663676，V ₃ ＝-11.92250949，V ₄ ＝5.36664326，V ₅ ＝7.37168811，W11＝-0.35875759，W12＝0.13787137，W13＝0.33458189，W14＝-0.50523374，W15＝ 1.69823758，W21＝10.29658039，W22＝0.80742288，W23＝4.12574959，W24＝-11.19394148，W25＝-8.05011810；偏置常量b ₁ ＝-11.35753556，b ₂ ＝0.04014640，b ₃ ＝-2.66309245，b ₄ ＝9.68923738，b ₅ = 12.42979910, b = 105.67968188.

What is not described in the present invention applies to the prior art.

Claims (10)

1. a kind of alcohol content on-line detection sectional wine picking equipment based on density, is characterized in that, this equipment comprises wine receiving device, exhaust device, flowing wine pipeline one, wine pump, steady flow device, damping device, density sensor , temperature sensor, wine dispenser, wine picking valve, wine draining valve 1, control system, wine draining pipeline 1, wine picking pipeline, wine flowing pipeline 2, steady flow pipeline, alcohol measurement pipeline, wine flowing pipeline 3, wine draining Valve 2, wine discharge pipeline 2, return pipeline, return valve and wine flow pipeline 4; The inlet of the first wine flow pipe is connected with the end of the wine receiving device, and the outlet is connected with the inlet of the first wine drain pipe and one end of the second wine flow pipe; Wine discharge valve 1, the outlet of wine discharge pipe 1 is used to discharge residual liquid; The other end of the wine flow pipeline 2 is connected with the liquid inlet of the wine pump; one end of the wine flow pipeline 4 is connected with the liquid outlet of the wine pump, and the other end is respectively connected with one end of the steady flow pipeline and one end of the wine discharge pipeline 2; the wine discharge pipeline The second is used to discharge the residual liquid, which is provided with a wine discharge valve II; the steady flow pipeline is provided with a steady flow device; the other end of the steady flow pipe is respectively connected with the inlet end of the alcohol content measurement pipe and one end of the return pipe; return flow The other end of the pipe is connected with the middle of the second wine discharge pipe, and the communication position is located in front of the second wine discharge valve according to the flow direction of the liquid; a return valve is arranged on the return pipe; ; The alcohol content measuring pipe is arranged vertically, and the damping device and the density sensor are arranged on it in sequence according to the liquid flow direction; the temperature sensor is arranged on the alcohol content measuring pipe and is close to the density sensor; Container; the end of the wine-picking container is connected to one end of several wine-picking pipes, and the other end of the wine-picking pipe is connected to a wine storage barrel; each wine-picking pipe is provided with a wine-picking valve; The control system is respectively connected with the wine pump, the density sensor, the temperature sensor, the wine picking valve, the first wine discharge valve, the second wine discharge valve and the return valve to realize control. 2. The density-based alcohol content online detection segmented wine picking device according to claim 1, is characterized in that, the wine receiving device is a funnel-shaped structure, and the original wine flowing out of the condenser of the wine producing equipment flows into the wine receiving device. 3. density-based alcohol content online detection segmented wine picking equipment according to claim 1, is characterized in that, described exhaust device is used for discharging the air in pipeline in the process of flowing wine, adopts exhaust pipe or exhaust When the exhaust pipe is used, the position of the air outlet of the exhaust pipe is higher than the position of the liquid inlet of the wine pump, which is conducive to the discharge of gas and prevents the liquid from flowing out, and the air outlet is provided with a mesh structure; when the exhaust hole is used The position of the vent hole is higher than the position of the liquid inlet of the wine pump, which is conducive to the discharge of gas and prevents the liquid from flowing out. The vent hole is provided with a mesh structure. 4. density-based alcohol content online detection segmented wine picking equipment according to claim 1, is characterized in that, steady flow device is used to become steady flow state from the liquid flowing out from wine pump, improves the accuracy of density measurement It includes pulsation damper and back pressure valve; pulsation damper and back pressure valve are arranged on the steady flow pipeline in sequence according to the flow direction of the liquid; the back pressure valve is horizontally arranged on the steady flow pipeline; on the pipeline. 5. density-based alcohol content online detection segmented wine picking equipment according to claim 1, is characterized in that, described damping device is arranged on the inlet end of alcohol content measurement pipeline, for reducing the working vibration of wine pump to The influence of the density sensor to improve the accuracy of the density sensor to measure the density. 6. The density-based alcohol content online detection segmented wine-picking equipment according to claim 5, wherein the shock-absorbing device adopts a food-grade soft-connected transparent pipe; One end of the connecting transparent pipe is connected with one end of the return pipe; the other end of the food-grade flexible connecting transparent pipe is connected with the inlet end of the alcohol content measuring pipe. 7. The density-based alcohol content online detection segmented wine-picking device according to claim 1, wherein the density sensor is a differential pressure density sensor, divided into two measuring heads, and is connected to the Alcohol measurement on the pipe. 8. The density-based alcohol content online detection segmented wine-picking device according to claim 7, wherein the number of temperature sensors is at least one, and one of the temperature sensors is located close to the density sensor according to the liquid flow direction. Behind the measuring head on the rear side. 9. The density-based alcohol content online detection segmented wine-picking device according to claim 1, wherein the device further comprises a pressure sensor; the pressure sensor is arranged on the second flow wine pipeline; the control system is connected to the pressure sensor for communication and achieve control. 10. The density-based alcohol content online detection segmented wine picking device according to claim 9, wherein the control system comprises a PLC, a control button, a touch screen, a 24V power supply, a circuit breaker, an AC contactor and a relay ;The external access to the mains is converted into 24V voltage through the AC contactor and circuit breaker in turn to supply power to the 24V power supply; the 24V power supply provides 24V voltage for PLC, relay, pressure sensor, density sensor and temperature sensor; pressure sensor, density sensor and temperature sensor are connected with the analog input port of PLC, transmit analog signal to PLC, the digital output port of PLC is connected with relay, PLC is connected with touch screen through communication line; relay is connected with wine pump, wine picking valve, wine discharging The first valve and the second wine discharge valve are connected with the return valve to control the opening of the wine pump and each valve.

Images