CN104809315A - Device and method for checking numerical simulation in beverage sterilization process - Google Patents
Device and method for checking numerical simulation in beverage sterilization process Download PDFInfo
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- CN104809315A CN104809315A CN201510256946.9A CN201510256946A CN104809315A CN 104809315 A CN104809315 A CN 104809315A CN 201510256946 A CN201510256946 A CN 201510256946A CN 104809315 A CN104809315 A CN 104809315A
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- sterilization tank
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Abstract
The invention discloses a device and a method for checking numerical simulation in a beverage sterilization process. The device comprises a computer, a temperature recorder connected with the computer, a thermocouple, a constant-temperature heating device and a motor, wherein a bracket is arranged in the constant-temperature heating device; a sterilization tank is arranged on the bracket; a rotating shaft of the motor is arranged in the constant-temperature heating device in a penetrating manner and is fixedly connected with the left end surface of the sterilization tank; a fixing rod is further arranged on the bracket; a hollow pipe is arranged on the right end surface of the sterilization tank in a penetrating manner; the hollow pipe is fixedly connected to the fixing rod and extends out of the constant-temperature heating device; the thermocouple is arranged in the hollow pipe in a penetrating manner; one end of the thermocouple is fixedly connected to the temperature recorder, and the other end of the thermocouple is positioned in a cavity of the sterilization tank. According to the device and the method, the accuracy of a result obtained by the numerical simulation in the beverage sterilization process can be verified, so that the accuracy of the result obtained by the numerical simulation is improved, the cost is reduced, and the efficiency is improved.
Description
Technical field
The present invention relates to a kind of for verifying the device and method that sterilizing beverages process value emulates.
Background technology
In the various work flows of food, sterilizing is one of link of most critical, because the quality good or not of bactericidal unit directly impact can produce the sanitary grade of rear food.Along with the raising of living standards of the people, to the requirement also corresponding raising of sterilizing beverages.At present, can not the nutrient such as vitamin, protein, probio in considerable damage beverage to the requirement of sterilizing, ensure the completeness of sterilizing again, the harmful total plate counts such as the Escherichia coli in beverage, staphylococcus aureus, Li bacillus are effectively controlled at certain hour.
Conventional heat sterilization mode is divided into again bus sterilizing, high temperature, short time sterilizing and ultra high temperature short time sterilization, the temperature requirement of three kinds of sterilizings is respectively 60 DEG C ~ 100 DEG C, 100 DEG C ~ more than 150 DEG C and 150 DEG C, and therefore different types of beverage has the different heat sterilization mode be applicable to separately.
Destroying situation for analyzing the nutrition of sterilization process beverage inside, needing to monitor the temperature variations of diverse location in bactericidal unit in sterilization process.Carry out testing and there is for overcoming actual purchase raw material the defect that cost is high, waste is large, the cycle is long, the numerical simulation of sterilization process can be adopted to carry out analogue simulation to sterilization process.Namely the numerical simulation of sterilization process carries out analogue simulation by computer numerical value calculation to sterilizing beverages process.But, in the selection of numerical simulation, the arranging and can affect simulation result of every equation, model meshes quality, boundary condition etc.Therefore, there is the defect compared with big error in the result that draws of numerical value emulation method and actual tests result.
Summary of the invention
The technical problem to be solved in the present invention there is defect compared with big error to overcome result that existing numerical value emulation method draws and actual tests result, provides a kind of for verifying the device and method that sterilizing beverages process value emulates.
The present invention solves above-mentioned technical matters by following technical proposals:
For verifying the device that sterilizing beverages process value emulates, its feature is, it comprises a computing machine, a moisture recorder be connected with described computing machine, a thermopair, a constant temperature heating device and a motor; Be provided with a support in described constant temperature heating device, described support is provided with a sterilization tank, and the rotation axis of described motor is arranged in described constant temperature heating device and affixed with the left side of described sterilization tank; Described support is also provided with the fixed bar of a cross direction profiles, the right side of described sterilization tank is equipped with a hollow tubular, and described hollow tubular is fixed in described fixed bar and extends the outside of described constant temperature heating device; Described thermopair is arranged in described hollow tubular, and one end of described thermopair is connected with described moisture recorder, and the other end is positioned at the cavity of described sterilization tank.
Preferably, described constant temperature heating device is a constant water bath box.Constant water bath box is conventional device, has good heating properties.
Preferably, described constant temperature heating device is a thermostatical oil bath cabinet.Thermostatical oil bath cabinet is conventional device, has good heating properties.
Preferably, described support is a wire rack.Like this, sterilization tank can be made to be heated evenly.
Preferably, described hollow tubular is a hollow plastic tube, and described sterilization tank is a stainless steel sterilization tank.Stainless steel sterilization tank has high, the corrosion resistant advantage of intensity.
Preferably, an O-ring seal is provided with between described hollow tubular and described sterilization tank.Like this, the sealing between hollow tubular and sterilization tank can be improved.
Preferably, described hollow tubular is fixed in described fixed bar by a fixation adhesive tape.Like this, hollow tubular can be fixed with fixed bar securely.
Preferably, described sterilization tank is the right cylinder of a hollow, described right cylinder cross direction profiles.Like this, sterilization tank rotates more smooth and easy.
For verifying the method that sterilizing beverages process value emulates, its feature is, it comprises the following steps:
S1, adopt as described in claim 1-8 any one for verifying the device that sterilizing beverages process value emulates, in sterilization tank, add beverage;
S2, startup constant temperature heating device, heat sterilization tank;
S3, starter motor, driven by motor sterilization tank rotates, and the temperature that thermopair detects by moisture recorder is sent to computing machine;
S4, terminate when sterilization tank sterilizing, moisture recorder stops monitoring, derives the temperature variation data of sterilization tank from computing machine;
S5, carry out arranging and calculating with the condition identical with step S1-step S3 in numerical simulation, obtain the temperature variation data of sterilization tank, the temperature variation data that this temperature variation data and step S4 draw is compared;
S6, data comparative result according to step S5, the mathematical calculation model in logarithm value emulation adjusts.
Positive progressive effect of the present invention is: device and method of the present invention can verify the accuracy that the numerical simulation of sterilizing beverages process is obtained a result, and improves the accuracy of the result that numerical simulation draws, reduces cost, improve efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of present pre-ferred embodiments.
Fig. 2 is the A direction view in Fig. 1.
Embodiment
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
As depicted in figs. 1 and 2, a kind of for verifying the device that sterilizing beverages process value emulates, it comprises computing machine 1, the moisture recorder 2 be connected with computing machine 1, thermopair 3, constant temperature heating device 4 and motor 11; Be provided with support 7 in constant temperature heating device 4, support 7 is provided with sterilization tank 8, and the rotation axis of motor 11 is arranged in constant temperature heating device 4 and affixed with the left side of sterilization tank 8; Support 7 is also provided with the fixed bar 5 of cross direction profiles, the right side of sterilization tank 8 is equipped with hollow tubular 6, and hollow tubular 6 is fixed in fixed bar 5 and extends the outside of constant temperature heating device 4; Thermopair 3 is arranged in hollow tubular 6, and one end of thermopair 3 is connected with moisture recorder 2, and the other end is positioned at the cavity of sterilization tank 8.
Constant temperature heating device 4 can be constant water bath box or thermostatical oil bath cabinet, and support 7 can be wire rack, and hollow tubular 6 can be hollow plastic tube, and sterilization tank 8 can be stainless steel sterilization tank.O-ring seal 10 is provided with between hollow tubular 6 and sterilization tank 8.Hollow tubular 6 is fixed in fixed bar 5 by fixation adhesive tape 9.Sterilization tank 8 is the right cylinder of hollow, this right cylinder cross direction profiles.The rotation axis of motor 11 can be connected by set bolt 12 with between sterilization tank 8.
For verifying the method that sterilizing beverages process value emulates, it comprises the following steps:
S1, adopting aforesaid for verifying the device that sterilizing beverages process value emulates, in sterilization tank 8, adding beverage;
S2, startup constant temperature heating device 4, heat sterilization tank 8;
S3, starter motor 11, motor 11 drives sterilization tank 8 to rotate, and the temperature that thermopair 3 detects is sent to computing machine 1 by moisture recorder 2;
S4, terminate when sterilization tank 8 sterilizing, moisture recorder 2 stops monitoring, derives temperature variation data from computing machine 1;
S5, carry out arranging and calculating with the condition identical with step S1-step S3 in numerical simulation, obtain the temperature variation data of sterilization tank, the temperature variation data that this temperature variation data and step S4 draw is compared;
S6, data comparative result according to step S5, the mathematical calculation model in logarithm value emulation adjusts.
The device and method that the present invention relates to for monitoring the change of beverage inside temperature in actual sterilization process, compared with the temperature variation data simultaneously drawn with numerical simulation, for verifying the accuracy of numerical simulation.The present invention can apply in the numerical simulation of the sterilization process verifying the beverages such as fruit juice, milk, various teas.In the present invention, bus milk sterilization process need use constant water bath box (maximum temperature 100 DEG C), high temperature, short time sterilization process and ultra high temperature short time sterilization technique use thermostatical oil bath cabinet (maximum temperature 200 DEG C), and the reservoir of thermostatical oil bath cabinet and constant water bath box is of a size of 400mm × 300mm × 200mm.
In the present invention, that uses in the making material of sterilization tank and actual production is consistent, and its intensity and corrosion resistance higher than the stainless steel of " 304 " trade mark, and must not produce the virulent material of human body under the high temperature conditions.The sterilization tank size imported in numerical simulation need be consistent with realistic model, needs the physical parameter etc. of milk in the pot temperature before and after by the coefficient of heat conductivity of sterilization tank, thickness, sterilizing and tank to import in simulated program in conjunction with actual conditions in calculation procedure.
For ensureing that test can be carried out smoothly, the O-ring seal in device of the present invention, fixed bar, hollow tubular, fixation adhesive tape all need the high temperature that can tolerate 200 DEG C, and can keep not affecting its using function in 300 minutes.
Fully can contact with heating agent (oil in the high-temperature water namely in constant water bath box or thermostatical oil bath cabinet) for making the sterilization tank in process of the test, device of the present invention adopts wire rack, the hollow out support that namely wire rack adopts steel wire to make, like this, sterilization tank can with the rope at high temperature not affecting its usability, firmly tie up on wire rack, reserve the distance of about 30mm to 50mm bottom the reservoir of the bottom of sterilization tank and constant water bath box or thermostatical oil bath cabinet, during to guarantee to test, each position of sterilization tank all has heat to import into.
In different high-temperature sterilizing process, sterilization tank has the different rotating speeds be applicable to separately, and therefore, the motor in the present invention adopts variable-frequency motor.To carry out sterilization treatment to milk, variable-frequency motor should be able to provide three kinds of rotating speeds of 30 revs/min, 60 revs/min, 90 revs/min, for the numerical simulation of checking bus sterilizing, and general use low gear rotating speed (namely 30 revs/min); For high temperature, short time sterilizing, the middle-grade rotating speed of general use (namely 60 revs/min), high-grade rotating speed (namely 90 revs/min) is then applicable to ultra high temperature short time sterilization mode, by providing certain kinetic energy to accelerate temperature rise in sterilization process and tank interior temperature homogeneity to milk.
Actual tests is carried out with device of the present invention, the sterilization tank of 5 kinds of different sizes can be set, respectively analogue simulation is carried out to 5 kinds of different size sterilization tanks, can carry out emulating and measuring for the single-point of diverse location in tank or multi-point temp, equation in logarithm value simulating scheme, grid, boundary condition, the reasonably optimizing of computational accuracy and various physical properties of fluids parameter, until the temperature data that draws of the numerical simulation of 5 kinds of different size sterilization tanks and with the error between the temperature data adopting device of the present invention to record within 8%, at this moment, show the scheme accurate and effective of this numerical simulation.This numerical simulation scheme just can be used for the beverage heating sterilization process of simulating actual production.
Adopt device and method of the present invention, numerical simulation scheme only needs early investment to verify the cost of numerical simulation, once simulating scheme is proved accurately, stage can come, without the need to any later stage expense by the simulation of computing machine completely.Be 5m as monitored 1 volume
3milk sterilizing bucket in the temperature rise situation of diverse location 5 points in sterilization process, situation is destroyed to analyze its inner nutrition, as taked the mode of traditional experiment, about 5 tons of raw milks need be bought, add equipment operating cost, the cost of single test is about 50,000 Renminbi, single test is as needed analytical error and variance, need 3 to 5 times be repeated, cost is then 23 to 28 ten thousand Renminbi, and the milk that need process after test, cause a large amount of wastes of resource and the energy, and uncontrollable environmental factor can cause certain influence to test findings in test, a whole set of test generally needs 5 to 10 days cycles.Adopt test method provided by the invention, only need buy the expense of the equipment such as computing machine, constant water bath box (or thermostatical oil bath cabinet), moisture recorder and motor, carry out certain repacking to constant water bath box (or thermostatical oil bath cabinet), cost is generally no more than 5.2 ten thousand Renminbi.The accurate simulating scheme obtained in advance as taked, the time repeating 5 l-G simulation tests is generally no more than 2 days, and can arrange on an equal basis (room epidemic disaster, pressure etc.) due to boundary condition, experimental enviroment can be identical, the simulating scheme drawn is owing to being verified before, therefore susceptible of proof is accurate.After adopting device and method of the present invention, compare traditional experimental program, obtaining under identical experiment effect prerequisite, once complete experiment can at least save Renminbi more than 160,000, saves at least 3 days experimental periods, and without any the waste of resource and the energy.
Device and method of the present invention can verify the accuracy that the numerical simulation of sterilizing beverages process is obtained a result, and improves the accuracy of the result that numerical simulation draws, reduces cost, improve efficiency.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (9)
1. for verifying the device that sterilizing beverages process value emulates, it is characterized in that, it comprises a computing machine, a moisture recorder be connected with described computing machine, a thermopair, a constant temperature heating device and a motor; Be provided with a support in described constant temperature heating device, described support is provided with a sterilization tank, and the rotation axis of described motor is arranged in described constant temperature heating device and affixed with the left side of described sterilization tank; Described support is also provided with the fixed bar of a cross direction profiles, the right side of described sterilization tank is equipped with a hollow tubular, and described hollow tubular is fixed in described fixed bar and extends the outside of described constant temperature heating device; Described thermopair is arranged in described hollow tubular, and one end of described thermopair is connected with described moisture recorder, and the other end is positioned at the cavity of described sterilization tank.
2. as claimed in claim 1 for verifying the device that sterilizing beverages process value emulates, it is characterized in that, described constant temperature heating device is a constant water bath box.
3. as claimed in claim 1 for verifying the device that sterilizing beverages process value emulates, it is characterized in that, described constant temperature heating device is a thermostatical oil bath cabinet.
4. as claimed in claim 1 for verifying the device that sterilizing beverages process value emulates, it is characterized in that, described support is a wire rack.
5. as claimed in claim 1 for verifying the device that sterilizing beverages process value emulates, it is characterized in that, described hollow tubular is a hollow plastic tube, and described sterilization tank is a stainless steel sterilization tank.
6. as claimed in claim 1 for verifying the device that sterilizing beverages process value emulates, it is characterized in that, between described hollow tubular and described sterilization tank, be provided with an O-ring seal.
7. as claimed in claim 1 for verifying the device that sterilizing beverages process value emulates, it is characterized in that, described hollow tubular is fixed in described fixed bar by a fixation adhesive tape.
8. as claimed in claim 1 for verifying the device that sterilizing beverages process value emulates, it is characterized in that, described sterilization tank is the right cylinder of a hollow, described right cylinder cross direction profiles.
9., for verifying the method that sterilizing beverages process value emulates, it is characterized in that, it comprises the following steps:
S1, adopt as described in claim 1-8 any one for verifying the device that sterilizing beverages process value emulates, in sterilization tank, add beverage;
S2, startup constant temperature heating device, heat sterilization tank;
S3, starter motor, driven by motor sterilization tank rotates, and the temperature that thermopair detects by moisture recorder is sent to computing machine;
S4, terminate when sterilization tank sterilizing, moisture recorder stops monitoring, derives the temperature variation data of sterilization tank from computing machine;
S5, carry out arranging and calculating with the condition identical with step S1-step S3 in numerical simulation, obtain the temperature variation data of sterilization tank, the temperature variation data that this temperature variation data and step S4 draw is compared;
S6, data comparative result according to step S5, the mathematical calculation model in logarithm value emulation adjusts.
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| CN201510256946.9A CN104809315A (en) | 2015-05-19 | 2015-05-19 | Device and method for checking numerical simulation in beverage sterilization process |
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| CN201510256946.9A CN104809315A (en) | 2015-05-19 | 2015-05-19 | Device and method for checking numerical simulation in beverage sterilization process |
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Cited By (1)
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| CN104833696A (en) * | 2015-05-19 | 2015-08-12 | 光明乳业股份有限公司 | Apparatus and device for verifying numerical simulation in beverage sterilizing process |
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| CN104833696A (en) * | 2015-05-19 | 2015-08-12 | 光明乳业股份有限公司 | Apparatus and device for verifying numerical simulation in beverage sterilizing process |
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Application publication date: 20150729 |